diff --git a/.vscode/launch.json b/.vscode/launch.json new file mode 100644 index 0000000..7f300b8 --- /dev/null +++ b/.vscode/launch.json @@ -0,0 +1,28 @@ +{ + // Use IntelliSense to learn about possible attributes. + // Hover to view descriptions of existing attributes. + // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387 + "version": "0.2.0", + "configurations": [ + { + "name": "(gdb) Launch", + "type": "cppdbg", + "request": "launch", + "program": "${workspaceFolder}/output.exe", + "args": [], + "stopAtEntry": false, + "cwd": "${fileDirname}", + "environment": [], + "externalConsole": false, + "MIMode": "gdb", + "miDebuggerPath": "gdb", + "setupCommands": [ + { + "description": "Enable pretty-printing for gdb", + "text": "-enable-pretty-printing", + "ignoreFailures": true + } + ] + } + ] +} \ No newline at end of file diff --git a/.vscode/tasks.json b/.vscode/tasks.json new file mode 100644 index 0000000..3f4b4bc --- /dev/null +++ b/.vscode/tasks.json @@ -0,0 +1,59 @@ +{ + // See https://go.microsoft.com/fwlink/?LinkId=733558 + // for the documentation about the tasks.json format + "version": "2.0.0", + "tasks": [ + { + "label": "Compile (Debug)", + "type": "shell", + "command": "tcc", + "args": [ + { "value": "src/**.c", "quoting": "weak" }, + { "value": "-ooutput.exe", "quoting": "strong" }, + { "value": "-bench", "quoting": "strong" }, + { "value": "-v", "quoting": "strong" }, + { "value": "-g", "quoting": "strong" }, + { "value": "-Iinclude", "quoting": "strong" }, + { "value": "-Llib", "quoting": "strong" }, + { "value": "-stdc99", "quoting": "strong" }, + { "value": "-Wall", "quoting": "strong" }, + { "value": "-Werror", "quoting": "strong" }, + { "value": "-Wwrite-strings", "quoting": "strong" }, + { "value": "-lraylib", "quoting": "strong" }, + { "value": "-lopengl32", "quoting": "strong" }, + { "value": "-lgdi32", "quoting": "strong" }, + { "value": "-luser32", "quoting": "strong" }, + { "value": "-lshell32", "quoting": "strong" }, + { "value": "-lwinmm", "quoting": "strong" }, + ], + "group": { + "kind": "build", + "isDefault": true + }, + }, + { + "label": "Compile (Release)", + "type": "shell", + "command": "tcc", + "args": [ + { "value": "src/**.c", "quoting": "weak" }, + { "value": "-ooutput.exe", "quoting": "strong" }, + { "value": "-bench", "quoting": "strong" }, + { "value": "-v", "quoting": "strong" }, + { "value": "-Iinclude", "quoting": "strong" }, + { "value": "-Llib", "quoting": "strong" }, + { "value": "-stdc99", "quoting": "strong" }, + { "value": "-Wall", "quoting": "strong" }, + { "value": "-Werror", "quoting": "strong" }, + { "value": "-Wwrite-strings", "quoting": "strong" }, + { "value": "-lraylib", "quoting": "strong" }, + { "value": "-lopengl32", "quoting": "strong" }, + { "value": "-lgdi32", "quoting": "strong" }, + { "value": "-luser32", "quoting": "strong" }, + { "value": "-lshell32", "quoting": "strong" }, + { "value": "-lwinmm", "quoting": "strong" }, + ], + "group": "build", + } + ] +} \ No newline at end of file diff --git a/include/config.h b/include/config.h new file mode 100644 index 0000000..e77d1f8 --- /dev/null +++ b/include/config.h @@ -0,0 +1,230 @@ +/********************************************************************************************** +* +* raylib configuration flags +* +* This file defines all the configuration flags for the different raylib modules +* +* LICENSE: zlib/libpng +* +* Copyright (c) 2018-2021 Ahmad Fatoum & Ramon Santamaria (@raysan5) +* +* This software is provided "as-is", without any express or implied warranty. In no event +* will the authors be held liable for any damages arising from the use of this software. +* +* Permission is granted to anyone to use this software for any purpose, including commercial +* applications, and to alter it and redistribute it freely, subject to the following restrictions: +* +* 1. The origin of this software must not be misrepresented; you must not claim that you +* wrote the original software. If you use this software in a product, an acknowledgment +* in the product documentation would be appreciated but is not required. +* +* 2. Altered source versions must be plainly marked as such, and must not be misrepresented +* as being the original software. +* +* 3. This notice may not be removed or altered from any source distribution. +* +**********************************************************************************************/ + +//------------------------------------------------------------------------------------ +// Module: core - Configuration Flags +//------------------------------------------------------------------------------------ +// Camera module is included (rcamera.h) and multiple predefined cameras are available: free, 1st/3rd person, orbital +#define SUPPORT_CAMERA_SYSTEM 1 +// Gestures module is included (rgestures.h) to support gestures detection: tap, hold, swipe, drag +#define SUPPORT_GESTURES_SYSTEM 1 +// Mouse gestures are directly mapped like touches and processed by gestures system +#define SUPPORT_MOUSE_GESTURES 1 +// Reconfigure standard input to receive key inputs, works with SSH connection. +#define SUPPORT_SSH_KEYBOARD_RPI 1 +// Draw a mouse pointer on screen +//#define SUPPORT_MOUSE_CURSOR_POINT 1 +// Setting a higher resolution can improve the accuracy of time-out intervals in wait functions. +// However, it can also reduce overall system performance, because the thread scheduler switches tasks more often. +#define SUPPORT_WINMM_HIGHRES_TIMER 1 +// Use busy wait loop for timing sync, if not defined, a high-resolution timer is setup and used +//#define SUPPORT_BUSY_WAIT_LOOP 1 +// Use a partial-busy wait loop, in this case frame sleeps for most of the time, but then runs a busy loop at the end for accuracy +#define SUPPORT_PARTIALBUSY_WAIT_LOOP +// Wait for events passively (sleeping while no events) instead of polling them actively every frame +//#define SUPPORT_EVENTS_WAITING 1 +// Allow automatic screen capture of current screen pressing F12, defined in KeyCallback() +#define SUPPORT_SCREEN_CAPTURE 1 +// Allow automatic gif recording of current screen pressing CTRL+F12, defined in KeyCallback() +#define SUPPORT_GIF_RECORDING 1 +// Support CompressData() and DecompressData() functions +#define SUPPORT_COMPRESSION_API 1 +// Support saving binary data automatically to a generated storage.data file. This file is managed internally. +#define SUPPORT_DATA_STORAGE 1 +// Support automatic generated events, loading and recording of those events when required +#define SUPPORT_EVENTS_AUTOMATION 1 +// Support custom frame control, only for advance users +// By default EndDrawing() does this job: draws everything + SwapScreenBuffer() + manage frame timming + PollInputEvents() +// Enabling this flag allows manual control of the frame processes, use at your own risk +//#define SUPPORT_CUSTOM_FRAME_CONTROL 1 + +// core: Configuration values +//------------------------------------------------------------------------------------ +#if defined(__linux__) + #define MAX_FILEPATH_LENGTH 4096 // Maximum length for filepaths (Linux PATH_MAX default value) +#else + #define MAX_FILEPATH_LENGTH 512 // Maximum length supported for filepaths +#endif + +#define MAX_GAMEPADS 4 // Max number of gamepads supported +#define MAX_GAMEPAD_AXIS 8 // Max number of axis supported (per gamepad) +#define MAX_GAMEPAD_BUTTONS 32 // Max bumber of buttons supported (per gamepad) +#define MAX_TOUCH_POINTS 8 // Maximum number of touch points supported +#define MAX_KEY_PRESSED_QUEUE 16 // Max number of characters in the key input queue + +#define STORAGE_DATA_FILE "storage.data" // Automatic storage filename + +#define MAX_DECOMPRESSION_SIZE 64 // Max size allocated for decompression in MB + + +//------------------------------------------------------------------------------------ +// Module: rlgl - Configuration values +//------------------------------------------------------------------------------------ + +// Enable OpenGL Debug Context (only available on OpenGL 4.3) +//#define RLGL_ENABLE_OPENGL_DEBUG_CONTEXT 1 + +// Show OpenGL extensions and capabilities detailed logs on init +//#define RLGL_SHOW_GL_DETAILS_INFO 1 + +//#define RL_DEFAULT_BATCH_BUFFER_ELEMENTS 4096 // Default internal render batch elements limits +#define RL_DEFAULT_BATCH_BUFFERS 1 // Default number of batch buffers (multi-buffering) +#define RL_DEFAULT_BATCH_DRAWCALLS 256 // Default number of batch draw calls (by state changes: mode, texture) +#define RL_DEFAULT_BATCH_MAX_TEXTURE_UNITS 4 // Maximum number of textures units that can be activated on batch drawing (SetShaderValueTexture()) + +#define RL_MAX_MATRIX_STACK_SIZE 32 // Maximum size of internal Matrix stack + +#define RL_MAX_SHADER_LOCATIONS 32 // Maximum number of shader locations supported + +#define RL_CULL_DISTANCE_NEAR 0.01 // Default projection matrix near cull distance +#define RL_CULL_DISTANCE_FAR 1000.0 // Default projection matrix far cull distance + +// Default shader vertex attribute names to set location points +// NOTE: When a new shader is loaded, the following locations are tried to be set for convenience +#define RL_DEFAULT_SHADER_ATTRIB_NAME_POSITION "vertexPosition" // Binded by default to shader location: 0 +#define RL_DEFAULT_SHADER_ATTRIB_NAME_TEXCOORD "vertexTexCoord" // Binded by default to shader location: 1 +#define RL_DEFAULT_SHADER_ATTRIB_NAME_NORMAL "vertexNormal" // Binded by default to shader location: 2 +#define RL_DEFAULT_SHADER_ATTRIB_NAME_COLOR "vertexColor" // Binded by default to shader location: 3 +#define RL_DEFAULT_SHADER_ATTRIB_NAME_TANGENT "vertexTangent" // Binded by default to shader location: 4 +#define RL_DEFAULT_SHADER_ATTRIB_NAME_TEXCOORD2 "vertexTexCoord2" // Binded by default to shader location: 5 + +#define RL_DEFAULT_SHADER_UNIFORM_NAME_MVP "mvp" // model-view-projection matrix +#define RL_DEFAULT_SHADER_UNIFORM_NAME_VIEW "matView" // view matrix +#define RL_DEFAULT_SHADER_UNIFORM_NAME_PROJECTION "matProjection" // projection matrix +#define RL_DEFAULT_SHADER_UNIFORM_NAME_MODEL "matModel" // model matrix +#define RL_DEFAULT_SHADER_UNIFORM_NAME_NORMAL "matNormal" // normal matrix (transpose(inverse(matModelView)) +#define RL_DEFAULT_SHADER_UNIFORM_NAME_COLOR "colDiffuse" // color diffuse (base tint color, multiplied by texture color) +#define RL_DEFAULT_SHADER_SAMPLER2D_NAME_TEXTURE0 "texture0" // texture0 (texture slot active 0) +#define RL_DEFAULT_SHADER_SAMPLER2D_NAME_TEXTURE1 "texture1" // texture1 (texture slot active 1) +#define RL_DEFAULT_SHADER_SAMPLER2D_NAME_TEXTURE2 "texture2" // texture2 (texture slot active 2) + + +//------------------------------------------------------------------------------------ +// Module: shapes - Configuration Flags +//------------------------------------------------------------------------------------ +// Use QUADS instead of TRIANGLES for drawing when possible +// Some lines-based shapes could still use lines +#define SUPPORT_QUADS_DRAW_MODE 1 + + +//------------------------------------------------------------------------------------ +// Module: textures - Configuration Flags +//------------------------------------------------------------------------------------ +// Selecte desired fileformats to be supported for image data loading +#define SUPPORT_FILEFORMAT_PNG 1 +//#define SUPPORT_FILEFORMAT_BMP 1 +//#define SUPPORT_FILEFORMAT_TGA 1 +#define SUPPORT_FILEFORMAT_JPG 1 +#define SUPPORT_FILEFORMAT_GIF 1 +//#define SUPPORT_FILEFORMAT_PSD 1 +//#define SUPPORT_FILEFORMAT_DDS 1 +//#define SUPPORT_FILEFORMAT_HDR 1 +//#define SUPPORT_FILEFORMAT_KTX 1 +//#define SUPPORT_FILEFORMAT_ASTC 1 +//#define SUPPORT_FILEFORMAT_PKM 1 +//#define SUPPORT_FILEFORMAT_PVR 1 + +// Support image export functionality (.png, .bmp, .tga, .jpg) +#define SUPPORT_IMAGE_EXPORT 1 +// Support procedural image generation functionality (gradient, spot, perlin-noise, cellular) +#define SUPPORT_IMAGE_GENERATION 1 +// Support multiple image editing functions to scale, adjust colors, flip, draw on images, crop... +// If not defined, still some functions are supported: ImageFormat(), ImageCrop(), ImageToPOT() +#define SUPPORT_IMAGE_MANIPULATION 1 + + +//------------------------------------------------------------------------------------ +// Module: text - Configuration Flags +//------------------------------------------------------------------------------------ +// Default font is loaded on window initialization to be available for the user to render simple text +// NOTE: If enabled, uses external module functions to load default raylib font +#define SUPPORT_DEFAULT_FONT 1 +// Selected desired font fileformats to be supported for loading +#define SUPPORT_FILEFORMAT_FNT 1 +#define SUPPORT_FILEFORMAT_TTF 1 + +// Support text management functions +// If not defined, still some functions are supported: TextLength(), TextFormat() +#define SUPPORT_TEXT_MANIPULATION 1 + +// text: Configuration values +//------------------------------------------------------------------------------------ +#define MAX_TEXT_BUFFER_LENGTH 1024 // Size of internal static buffers used on some functions: + // TextFormat(), TextSubtext(), TextToUpper(), TextToLower(), TextToPascal(), TextSplit() +#define MAX_TEXTSPLIT_COUNT 128 // Maximum number of substrings to split: TextSplit() + + +//------------------------------------------------------------------------------------ +// Module: models - Configuration Flags +//------------------------------------------------------------------------------------ +// Selected desired model fileformats to be supported for loading +#define SUPPORT_FILEFORMAT_OBJ 1 +#define SUPPORT_FILEFORMAT_MTL 1 +#define SUPPORT_FILEFORMAT_IQM 1 +#define SUPPORT_FILEFORMAT_GLTF 1 +#define SUPPORT_FILEFORMAT_VOX 1 +// Support procedural mesh generation functions, uses external par_shapes.h library +// NOTE: Some generated meshes DO NOT include generated texture coordinates +#define SUPPORT_MESH_GENERATION 1 + +// models: Configuration values +//------------------------------------------------------------------------------------ +#define MAX_MATERIAL_MAPS 12 // Maximum number of shader maps supported +#define MAX_MESH_VERTEX_BUFFERS 7 // Maximum vertex buffers (VBO) per mesh + +//------------------------------------------------------------------------------------ +// Module: audio - Configuration Flags +//------------------------------------------------------------------------------------ +// Desired audio fileformats to be supported for loading +#define SUPPORT_FILEFORMAT_WAV 1 +#define SUPPORT_FILEFORMAT_OGG 1 +#define SUPPORT_FILEFORMAT_XM 1 +#define SUPPORT_FILEFORMAT_MOD 1 +#define SUPPORT_FILEFORMAT_MP3 1 +//#define SUPPORT_FILEFORMAT_FLAC 1 + +// audio: Configuration values +//------------------------------------------------------------------------------------ +#define AUDIO_DEVICE_FORMAT ma_format_f32 // Device output format (miniaudio: float-32bit) +#define AUDIO_DEVICE_CHANNELS 2 // Device output channels: stereo +#define AUDIO_DEVICE_SAMPLE_RATE 0 // Device sample rate (device default) + +#define MAX_AUDIO_BUFFER_POOL_CHANNELS 16 // Maximum number of audio pool channels + +//------------------------------------------------------------------------------------ +// Module: utils - Configuration Flags +//------------------------------------------------------------------------------------ +// Standard file io library (stdio.h) included +#define SUPPORT_STANDARD_FILEIO +// Show TRACELOG() output messages +// NOTE: By default LOG_DEBUG traces not shown +#define SUPPORT_TRACELOG 1 +//#define SUPPORT_TRACELOG_DEBUG 1 + +// utils: Configuration values +//------------------------------------------------------------------------------------ +#define MAX_TRACELOG_MSG_LENGTH 128 // Max length of one trace-log message diff --git a/include/easings.h b/include/easings.h new file mode 100644 index 0000000..3441305 --- /dev/null +++ b/include/easings.h @@ -0,0 +1,263 @@ +/******************************************************************************************* +* +* raylib easings (header only file) +* +* Useful easing functions for values animation +* +* This header uses: +* #define EASINGS_STATIC_INLINE // Inlines all functions code, so it runs faster. +* // This requires lots of memory on system. +* How to use: +* The four inputs t,b,c,d are defined as follows: +* t = current time (in any unit measure, but same unit as duration) +* b = starting value to interpolate +* c = the total change in value of b that needs to occur +* d = total time it should take to complete (duration) +* +* Example: +* +* int currentTime = 0; +* int duration = 100; +* float startPositionX = 0.0f; +* float finalPositionX = 30.0f; +* float currentPositionX = startPositionX; +* +* while (currentPositionX < finalPositionX) +* { +* currentPositionX = EaseSineIn(currentTime, startPositionX, finalPositionX - startPositionX, duration); +* currentTime++; +* } +* +* A port of Robert Penner's easing equations to C (http://robertpenner.com/easing/) +* +* Robert Penner License +* --------------------------------------------------------------------------------- +* Open source under the BSD License. +* +* Copyright (c) 2001 Robert Penner. All rights reserved. +* +* Redistribution and use in source and binary forms, with or without modification, +* are permitted provided that the following conditions are met: +* +* - Redistributions of source code must retain the above copyright notice, +* this list of conditions and the following disclaimer. +* - Redistributions in binary form must reproduce the above copyright notice, +* this list of conditions and the following disclaimer in the documentation +* and/or other materials provided with the distribution. +* - Neither the name of the author nor the names of contributors may be used +* to endorse or promote products derived from this software without specific +* prior written permission. +* +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. +* IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, +* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, +* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF +* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE +* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED +* OF THE POSSIBILITY OF SUCH DAMAGE. +* --------------------------------------------------------------------------------- +* +* Copyright (c) 2015 Ramon Santamaria +* +* This software is provided "as-is", without any express or implied warranty. In no event +* will the authors be held liable for any damages arising from the use of this software. +* +* Permission is granted to anyone to use this software for any purpose, including commercial +* applications, and to alter it and redistribute it freely, subject to the following restrictions: +* +* 1. The origin of this software must not be misrepresented; you must not claim that you +* wrote the original software. If you use this software in a product, an acknowledgment +* in the product documentation would be appreciated but is not required. +* +* 2. Altered source versions must be plainly marked as such, and must not be misrepresented +* as being the original software. +* +* 3. This notice may not be removed or altered from any source distribution. +* +**********************************************************************************************/ + +#ifndef EASINGS_H +#define EASINGS_H + +#define EASINGS_STATIC_INLINE // NOTE: By default, compile functions as static inline + +#if defined(EASINGS_STATIC_INLINE) + #define EASEDEF static inline +#else + #define EASEDEF extern +#endif + +#include // Required for: sinf(), cosf(), sqrtf(), powf() + +#ifndef PI + #define PI 3.14159265358979323846f //Required as PI is not always defined in math.h +#endif + +#ifdef __cplusplus +extern "C" { // Prevents name mangling of functions +#endif + +// Linear Easing functions +EASEDEF float EaseLinearNone(float t, float b, float c, float d) { return (c*t/d + b); } +EASEDEF float EaseLinearIn(float t, float b, float c, float d) { return (c*t/d + b); } +EASEDEF float EaseLinearOut(float t, float b, float c, float d) { return (c*t/d + b); } +EASEDEF float EaseLinearInOut(float t,float b, float c, float d) { return (c*t/d + b); } + +// Sine Easing functions +EASEDEF float EaseSineIn(float t, float b, float c, float d) { return (-c*cosf(t/d*(PI/2.0f)) + c + b); } +EASEDEF float EaseSineOut(float t, float b, float c, float d) { return (c*sinf(t/d*(PI/2.0f)) + b); } +EASEDEF float EaseSineInOut(float t, float b, float c, float d) { return (-c/2.0f*(cosf(PI*t/d) - 1.0f) + b); } + +// Circular Easing functions +EASEDEF float EaseCircIn(float t, float b, float c, float d) { t /= d; return (-c*(sqrtf(1.0f - t*t) - 1.0f) + b); } +EASEDEF float EaseCircOut(float t, float b, float c, float d) { t = t/d - 1.0f; return (c*sqrtf(1.0f - t*t) + b); } +EASEDEF float EaseCircInOut(float t, float b, float c, float d) +{ + if ((t/=d/2.0f) < 1.0f) return (-c/2.0f*(sqrtf(1.0f - t*t) - 1.0f) + b); + t -= 2.0f; return (c/2.0f*(sqrtf(1.0f - t*t) + 1.0f) + b); +} + +// Cubic Easing functions +EASEDEF float EaseCubicIn(float t, float b, float c, float d) { t /= d; return (c*t*t*t + b); } +EASEDEF float EaseCubicOut(float t, float b, float c, float d) { t = t/d - 1.0f; return (c*(t*t*t + 1.0f) + b); } +EASEDEF float EaseCubicInOut(float t, float b, float c, float d) +{ + if ((t/=d/2.0f) < 1.0f) return (c/2.0f*t*t*t + b); + t -= 2.0f; return (c/2.0f*(t*t*t + 2.0f) + b); +} + +// Quadratic Easing functions +EASEDEF float EaseQuadIn(float t, float b, float c, float d) { t /= d; return (c*t*t + b); } +EASEDEF float EaseQuadOut(float t, float b, float c, float d) { t /= d; return (-c*t*(t - 2.0f) + b); } +EASEDEF float EaseQuadInOut(float t, float b, float c, float d) +{ + if ((t/=d/2) < 1) return (((c/2)*(t*t)) + b); + return (-c/2.0f*(((t - 1.0f)*(t - 3.0f)) - 1.0f) + b); +} + +// Exponential Easing functions +EASEDEF float EaseExpoIn(float t, float b, float c, float d) { return (t == 0.0f) ? b : (c*powf(2.0f, 10.0f*(t/d - 1.0f)) + b); } +EASEDEF float EaseExpoOut(float t, float b, float c, float d) { return (t == d) ? (b + c) : (c*(-powf(2.0f, -10.0f*t/d) + 1.0f) + b); } +EASEDEF float EaseExpoInOut(float t, float b, float c, float d) +{ + if (t == 0.0f) return b; + if (t == d) return (b + c); + if ((t/=d/2.0f) < 1.0f) return (c/2.0f*powf(2.0f, 10.0f*(t - 1.0f)) + b); + + return (c/2.0f*(-powf(2.0f, -10.0f*(t - 1.0f)) + 2.0f) + b); +} + +// Back Easing functions +EASEDEF float EaseBackIn(float t, float b, float c, float d) +{ + float s = 1.70158f; + float postFix = t/=d; + return (c*(postFix)*t*((s + 1.0f)*t - s) + b); +} + +EASEDEF float EaseBackOut(float t, float b, float c, float d) +{ + float s = 1.70158f; + t = t/d - 1.0f; + return (c*(t*t*((s + 1.0f)*t + s) + 1.0f) + b); +} + +EASEDEF float EaseBackInOut(float t, float b, float c, float d) +{ + float s = 1.70158f; + if ((t/=d/2.0f) < 1.0f) + { + s *= 1.525f; + return (c/2.0f*(t*t*((s + 1.0f)*t - s)) + b); + } + + float postFix = t-=2.0f; + s *= 1.525f; + return (c/2.0f*((postFix)*t*((s + 1.0f)*t + s) + 2.0f) + b); +} + +// Bounce Easing functions +EASEDEF float EaseBounceOut(float t, float b, float c, float d) +{ + if ((t/=d) < (1.0f/2.75f)) + { + return (c*(7.5625f*t*t) + b); + } + else if (t < (2.0f/2.75f)) + { + float postFix = t-=(1.5f/2.75f); + return (c*(7.5625f*(postFix)*t + 0.75f) + b); + } + else if (t < (2.5/2.75)) + { + float postFix = t-=(2.25f/2.75f); + return (c*(7.5625f*(postFix)*t + 0.9375f) + b); + } + else + { + float postFix = t-=(2.625f/2.75f); + return (c*(7.5625f*(postFix)*t + 0.984375f) + b); + } +} + +EASEDEF float EaseBounceIn(float t, float b, float c, float d) { return (c - EaseBounceOut(d - t, 0.0f, c, d) + b); } +EASEDEF float EaseBounceInOut(float t, float b, float c, float d) +{ + if (t < d/2.0f) return (EaseBounceIn(t*2.0f, 0.0f, c, d)*0.5f + b); + else return (EaseBounceOut(t*2.0f - d, 0.0f, c, d)*0.5f + c*0.5f + b); +} + +// Elastic Easing functions +EASEDEF float EaseElasticIn(float t, float b, float c, float d) +{ + if (t == 0.0f) return b; + if ((t/=d) == 1.0f) return (b + c); + + float p = d*0.3f; + float a = c; + float s = p/4.0f; + float postFix = a*powf(2.0f, 10.0f*(t-=1.0f)); + + return (-(postFix*sinf((t*d-s)*(2.0f*PI)/p )) + b); +} + +EASEDEF float EaseElasticOut(float t, float b, float c, float d) +{ + if (t == 0.0f) return b; + if ((t/=d) == 1.0f) return (b + c); + + float p = d*0.3f; + float a = c; + float s = p/4.0f; + + return (a*powf(2.0f,-10.0f*t)*sinf((t*d-s)*(2.0f*PI)/p) + c + b); +} + +EASEDEF float EaseElasticInOut(float t, float b, float c, float d) +{ + if (t == 0.0f) return b; + if ((t/=d/2.0f) == 2.0f) return (b + c); + + float p = d*(0.3f*1.5f); + float a = c; + float s = p/4.0f; + + if (t < 1.0f) + { + float postFix = a*powf(2.0f, 10.0f*(t-=1.0f)); + return -0.5f*(postFix*sinf((t*d-s)*(2.0f*PI)/p)) + b; + } + + float postFix = a*powf(2.0f, -10.0f*(t-=1.0f)); + + return (postFix*sinf((t*d-s)*(2.0f*PI)/p)*0.5f + c + b); +} + +#ifdef __cplusplus +} +#endif + +#endif // EASINGS_H diff --git a/include/physac.h b/include/physac.h new file mode 100644 index 0000000..642c25a --- /dev/null +++ b/include/physac.h @@ -0,0 +1,1977 @@ +/********************************************************************************************** +* +* Physac v1.1 - 2D Physics library for videogames +* +* DESCRIPTION: +* +* Physac is a small 2D physics engine written in pure C. The engine uses a fixed time-step thread loop +* to simluate physics. A physics step contains the following phases: get collision information, +* apply dynamics, collision solving and position correction. It uses a very simple struct for physic +* bodies with a position vector to be used in any 3D rendering API. +* +* CONFIGURATION: +* +* #define PHYSAC_IMPLEMENTATION +* Generates the implementation of the library into the included file. +* If not defined, the library is in header only mode and can be included in other headers +* or source files without problems. But only ONE file should hold the implementation. +* +* #define PHYSAC_DEBUG +* Show debug traces log messages about physic bodies creation/destruction, physic system errors, +* some calculations results and NULL reference exceptions. +* +* #define PHYSAC_AVOID_TIMMING_SYSTEM +* Disables internal timming system, used by UpdatePhysics() to launch timmed physic steps, +* it allows just running UpdatePhysics() automatically on a separate thread at a desired time step. +* In case physics steps update needs to be controlled by user with a custom timming mechanism, +* just define this flag and the internal timming mechanism will be avoided, in that case, +* timming libraries are neither required by the module. +* +* #define PHYSAC_MALLOC() +* #define PHYSAC_CALLOC() +* #define PHYSAC_FREE() +* You can define your own malloc/free implementation replacing stdlib.h malloc()/free() functions. +* Otherwise it will include stdlib.h and use the C standard library malloc()/free() function. +* +* COMPILATION: +* +* Use the following code to compile with GCC: +* gcc -o $(NAME_PART).exe $(FILE_NAME) -s -static -lraylib -lopengl32 -lgdi32 -lwinmm -std=c99 +* +* VERSIONS HISTORY: +* 1.1 (20-Jan-2021) @raysan5: Library general revision +* Removed threading system (up to the user) +* Support MSVC C++ compilation using CLITERAL() +* Review DEBUG mechanism for TRACELOG() and all TRACELOG() messages +* Review internal variables/functions naming for consistency +* Allow option to avoid internal timming system, to allow app manage the steps +* 1.0 (12-Jun-2017) First release of the library +* +* +* LICENSE: zlib/libpng +* +* Copyright (c) 2016-2021 Victor Fisac (@victorfisac) and Ramon Santamaria (@raysan5) +* +* This software is provided "as-is", without any express or implied warranty. In no event +* will the authors be held liable for any damages arising from the use of this software. +* +* Permission is granted to anyone to use this software for any purpose, including commercial +* applications, and to alter it and redistribute it freely, subject to the following restrictions: +* +* 1. The origin of this software must not be misrepresented; you must not claim that you +* wrote the original software. If you use this software in a product, an acknowledgment +* in the product documentation would be appreciated but is not required. +* +* 2. Altered source versions must be plainly marked as such, and must not be misrepresented +* as being the original software. +* +* 3. This notice may not be removed or altered from any source distribution. +* +**********************************************************************************************/ + +#if !defined(PHYSAC_H) +#define PHYSAC_H + +#ifndef PHYSACDEF + #define PHYSACDEF // We are building or using physac as a static library +#endif + +// Allow custom memory allocators +#ifndef PHYSAC_MALLOC + #define PHYSAC_MALLOC(size) malloc(size) +#endif +#ifndef PHYSAC_CALLOC + #define PHYSAC_CALLOC(size, n) calloc(size, n) +#endif +#ifndef PHYSAC_FREE + #define PHYSAC_FREE(ptr) free(ptr) +#endif + +//---------------------------------------------------------------------------------- +// Defines and Macros +//---------------------------------------------------------------------------------- +#define PHYSAC_MAX_BODIES 64 // Maximum number of physic bodies supported +#define PHYSAC_MAX_MANIFOLDS 4096 // Maximum number of physic bodies interactions (64x64) +#define PHYSAC_MAX_VERTICES 24 // Maximum number of vertex for polygons shapes +#define PHYSAC_DEFAULT_CIRCLE_VERTICES 24 // Default number of vertices for circle shapes + +#define PHYSAC_COLLISION_ITERATIONS 100 +#define PHYSAC_PENETRATION_ALLOWANCE 0.05f +#define PHYSAC_PENETRATION_CORRECTION 0.4f + +#define PHYSAC_PI 3.14159265358979323846f +#define PHYSAC_DEG2RAD (PHYSAC_PI/180.0f) + +//---------------------------------------------------------------------------------- +// Data Types Structure Definition +//---------------------------------------------------------------------------------- +#if defined(__STDC__) && __STDC_VERSION__ >= 199901L + #include +#endif + +typedef enum PhysicsShapeType { PHYSICS_CIRCLE = 0, PHYSICS_POLYGON } PhysicsShapeType; + +// Previously defined to be used in PhysicsShape struct as circular dependencies +typedef struct PhysicsBodyData *PhysicsBody; + +#if !defined(RL_VECTOR2_TYPE) +// Vector2 type +typedef struct Vector2 { + float x; + float y; +} Vector2; +#endif + +// Matrix2x2 type (used for polygon shape rotation matrix) +typedef struct Matrix2x2 { + float m00; + float m01; + float m10; + float m11; +} Matrix2x2; + +typedef struct PhysicsVertexData { + unsigned int vertexCount; // Vertex count (positions and normals) + Vector2 positions[PHYSAC_MAX_VERTICES]; // Vertex positions vectors + Vector2 normals[PHYSAC_MAX_VERTICES]; // Vertex normals vectors +} PhysicsVertexData; + +typedef struct PhysicsShape { + PhysicsShapeType type; // Shape type (circle or polygon) + PhysicsBody body; // Shape physics body data pointer + PhysicsVertexData vertexData; // Shape vertices data (used for polygon shapes) + float radius; // Shape radius (used for circle shapes) + Matrix2x2 transform; // Vertices transform matrix 2x2 +} PhysicsShape; + +typedef struct PhysicsBodyData { + unsigned int id; // Unique identifier + bool enabled; // Enabled dynamics state (collisions are calculated anyway) + Vector2 position; // Physics body shape pivot + Vector2 velocity; // Current linear velocity applied to position + Vector2 force; // Current linear force (reset to 0 every step) + float angularVelocity; // Current angular velocity applied to orient + float torque; // Current angular force (reset to 0 every step) + float orient; // Rotation in radians + float inertia; // Moment of inertia + float inverseInertia; // Inverse value of inertia + float mass; // Physics body mass + float inverseMass; // Inverse value of mass + float staticFriction; // Friction when the body has not movement (0 to 1) + float dynamicFriction; // Friction when the body has movement (0 to 1) + float restitution; // Restitution coefficient of the body (0 to 1) + bool useGravity; // Apply gravity force to dynamics + bool isGrounded; // Physics grounded on other body state + bool freezeOrient; // Physics rotation constraint + PhysicsShape shape; // Physics body shape information (type, radius, vertices, transform) +} PhysicsBodyData; + +typedef struct PhysicsManifoldData { + unsigned int id; // Unique identifier + PhysicsBody bodyA; // Manifold first physics body reference + PhysicsBody bodyB; // Manifold second physics body reference + float penetration; // Depth of penetration from collision + Vector2 normal; // Normal direction vector from 'a' to 'b' + Vector2 contacts[2]; // Points of contact during collision + unsigned int contactsCount; // Current collision number of contacts + float restitution; // Mixed restitution during collision + float dynamicFriction; // Mixed dynamic friction during collision + float staticFriction; // Mixed static friction during collision +} PhysicsManifoldData, *PhysicsManifold; + +//---------------------------------------------------------------------------------- +// Module Functions Declaration +//---------------------------------------------------------------------------------- + +#if defined(__cplusplus) +extern "C" { // Prevents name mangling of functions +#endif +// Physics system management +PHYSACDEF void InitPhysics(void); // Initializes physics system +PHYSACDEF void UpdatePhysics(void); // Update physics system +PHYSACDEF void ResetPhysics(void); // Reset physics system (global variables) +PHYSACDEF void ClosePhysics(void); // Close physics system and unload used memory +PHYSACDEF void SetPhysicsTimeStep(double delta); // Sets physics fixed time step in milliseconds. 1.666666 by default +PHYSACDEF void SetPhysicsGravity(float x, float y); // Sets physics global gravity force + +// Physic body creation/destroy +PHYSACDEF PhysicsBody CreatePhysicsBodyCircle(Vector2 pos, float radius, float density); // Creates a new circle physics body with generic parameters +PHYSACDEF PhysicsBody CreatePhysicsBodyRectangle(Vector2 pos, float width, float height, float density); // Creates a new rectangle physics body with generic parameters +PHYSACDEF PhysicsBody CreatePhysicsBodyPolygon(Vector2 pos, float radius, int sides, float density); // Creates a new polygon physics body with generic parameters +PHYSACDEF void DestroyPhysicsBody(PhysicsBody body); // Destroy a physics body + +// Physic body forces +PHYSACDEF void PhysicsAddForce(PhysicsBody body, Vector2 force); // Adds a force to a physics body +PHYSACDEF void PhysicsAddTorque(PhysicsBody body, float amount); // Adds an angular force to a physics body +PHYSACDEF void PhysicsShatter(PhysicsBody body, Vector2 position, float force); // Shatters a polygon shape physics body to little physics bodies with explosion force +PHYSACDEF void SetPhysicsBodyRotation(PhysicsBody body, float radians); // Sets physics body shape transform based on radians parameter + +// Query physics info +PHYSACDEF PhysicsBody GetPhysicsBody(int index); // Returns a physics body of the bodies pool at a specific index +PHYSACDEF int GetPhysicsBodiesCount(void); // Returns the current amount of created physics bodies +PHYSACDEF int GetPhysicsShapeType(int index); // Returns the physics body shape type (PHYSICS_CIRCLE or PHYSICS_POLYGON) +PHYSACDEF int GetPhysicsShapeVerticesCount(int index); // Returns the amount of vertices of a physics body shape +PHYSACDEF Vector2 GetPhysicsShapeVertex(PhysicsBody body, int vertex); // Returns transformed position of a body shape (body position + vertex transformed position) +#if defined(__cplusplus) +} +#endif + +#endif // PHYSAC_H + +/*********************************************************************************** +* +* PHYSAC IMPLEMENTATION +* +************************************************************************************/ + +#if defined(PHYSAC_IMPLEMENTATION) + +// Support TRACELOG macros +#if defined(PHYSAC_DEBUG) + #include // Required for: printf() + #define TRACELOG(...) printf(__VA_ARGS__) +#else + #define TRACELOG(...) (void)0; +#endif + +#include // Required for: malloc(), calloc(), free() +#include // Required for: cosf(), sinf(), fabs(), sqrtf() + +#if !defined(PHYSAC_AVOID_TIMMING_SYSTEM) + // Time management functionality + #include // Required for: time(), clock_gettime() + #if defined(_WIN32) + #if defined(__cplusplus) + extern "C" { // Prevents name mangling of functions + #endif + // Functions required to query time on Windows + int __stdcall QueryPerformanceCounter(unsigned long long int *lpPerformanceCount); + int __stdcall QueryPerformanceFrequency(unsigned long long int *lpFrequency); + #if defined(__cplusplus) + } + #endif + #endif + #if defined(__linux__) || defined(__FreeBSD__) + #if _POSIX_C_SOURCE < 199309L + #undef _POSIX_C_SOURCE + #define _POSIX_C_SOURCE 199309L // Required for CLOCK_MONOTONIC if compiled with c99 without gnu ext. + #endif + #include // Required for: timespec + #endif + #if defined(__APPLE__) // macOS also defines __MACH__ + #include // Required for: mach_absolute_time() + #endif +#endif + +// NOTE: MSVC C++ compiler does not support compound literals (C99 feature) +// Plain structures in C++ (without constructors) can be initialized from { } initializers. +#if defined(__cplusplus) + #define CLITERAL(type) type +#else + #define CLITERAL(type) (type) +#endif + +//---------------------------------------------------------------------------------- +// Defines and Macros +//---------------------------------------------------------------------------------- +#define PHYSAC_MIN(a,b) (((a)<(b))?(a):(b)) +#define PHYSAC_MAX(a,b) (((a)>(b))?(a):(b)) +#define PHYSAC_FLT_MAX 3.402823466e+38f +#define PHYSAC_EPSILON 0.000001f +#define PHYSAC_K 1.0f/3.0f +#define PHYSAC_VECTOR_ZERO CLITERAL(Vector2){ 0.0f, 0.0f } + +//---------------------------------------------------------------------------------- +// Global Variables Definition +//---------------------------------------------------------------------------------- +static double deltaTime = 1.0/60.0/10.0 * 1000; // Delta time in milliseconds used for physics steps + +#if !defined(PHYSAC_AVOID_TIMMING_SYSTEM) +// Time measure variables +static double baseClockTicks = 0.0; // Offset clock ticks for MONOTONIC clock +static unsigned long long int frequency = 0; // Hi-res clock frequency +static double startTime = 0.0; // Start time in milliseconds +static double currentTime = 0.0; // Current time in milliseconds +#endif + +// Physics system configuration +static PhysicsBody bodies[PHYSAC_MAX_BODIES]; // Physics bodies pointers array +static unsigned int physicsBodiesCount = 0; // Physics world current bodies counter +static PhysicsManifold contacts[PHYSAC_MAX_MANIFOLDS]; // Physics bodies pointers array +static unsigned int physicsManifoldsCount = 0; // Physics world current manifolds counter + +static Vector2 gravityForce = { 0.0f, 9.81f }; // Physics world gravity force + +// Utilities variables +static unsigned int usedMemory = 0; // Total allocated dynamic memory + +//---------------------------------------------------------------------------------- +// Module Internal Functions Declaration +//---------------------------------------------------------------------------------- +#if !defined(PHYSAC_AVOID_TIMMING_SYSTEM) +// Timming measure functions +static void InitTimerHiRes(void); // Initializes hi-resolution MONOTONIC timer +static unsigned long long int GetClockTicks(void); // Get hi-res MONOTONIC time measure in mseconds +static double GetCurrentTime(void); // Get current time measure in milliseconds +#endif + +static void UpdatePhysicsStep(void); // Update physics step (dynamics, collisions and position corrections) + +static int FindAvailableBodyIndex(); // Finds a valid index for a new physics body initialization +static int FindAvailableManifoldIndex(); // Finds a valid index for a new manifold initialization +static PhysicsVertexData CreateDefaultPolygon(float radius, int sides); // Creates a random polygon shape with max vertex distance from polygon pivot +static PhysicsVertexData CreateRectanglePolygon(Vector2 pos, Vector2 size); // Creates a rectangle polygon shape based on a min and max positions + +static void InitializePhysicsManifolds(PhysicsManifold manifold); // Initializes physics manifolds to solve collisions +static PhysicsManifold CreatePhysicsManifold(PhysicsBody a, PhysicsBody b); // Creates a new physics manifold to solve collision +static void DestroyPhysicsManifold(PhysicsManifold manifold); // Unitializes and destroys a physics manifold + +static void SolvePhysicsManifold(PhysicsManifold manifold); // Solves a created physics manifold between two physics bodies +static void SolveCircleToCircle(PhysicsManifold manifold); // Solves collision between two circle shape physics bodies +static void SolveCircleToPolygon(PhysicsManifold manifold); // Solves collision between a circle to a polygon shape physics bodies +static void SolvePolygonToCircle(PhysicsManifold manifold); // Solves collision between a polygon to a circle shape physics bodies +static void SolvePolygonToPolygon(PhysicsManifold manifold); // Solves collision between two polygons shape physics bodies +static void IntegratePhysicsForces(PhysicsBody body); // Integrates physics forces into velocity +static void IntegratePhysicsVelocity(PhysicsBody body); // Integrates physics velocity into position and forces +static void IntegratePhysicsImpulses(PhysicsManifold manifold); // Integrates physics collisions impulses to solve collisions +static void CorrectPhysicsPositions(PhysicsManifold manifold); // Corrects physics bodies positions based on manifolds collision information +static void FindIncidentFace(Vector2 *v0, Vector2 *v1, PhysicsShape ref, PhysicsShape inc, int index); // Finds two polygon shapes incident face +static float FindAxisLeastPenetration(int *faceIndex, PhysicsShape shapeA, PhysicsShape shapeB); // Finds polygon shapes axis least penetration + +// Math required functions +static Vector2 MathVector2Product(Vector2 vector, float value); // Returns the product of a vector and a value +static float MathVector2CrossProduct(Vector2 v1, Vector2 v2); // Returns the cross product of two vectors +static float MathVector2SqrLen(Vector2 vector); // Returns the len square root of a vector +static float MathVector2DotProduct(Vector2 v1, Vector2 v2); // Returns the dot product of two vectors +static inline float MathVector2SqrDistance(Vector2 v1, Vector2 v2); // Returns the square root of distance between two vectors +static void MathVector2Normalize(Vector2 *vector); // Returns the normalized values of a vector +static Vector2 MathVector2Add(Vector2 v1, Vector2 v2); // Returns the sum of two given vectors +static Vector2 MathVector2Subtract(Vector2 v1, Vector2 v2); // Returns the subtract of two given vectors +static Matrix2x2 MathMatFromRadians(float radians); // Returns a matrix 2x2 from a given radians value +static inline Matrix2x2 MathMatTranspose(Matrix2x2 matrix); // Returns the transpose of a given matrix 2x2 +static inline Vector2 MathMatVector2Product(Matrix2x2 matrix, Vector2 vector); // Returns product between matrix 2x2 and vector +static int MathVector2Clip(Vector2 normal, Vector2 *faceA, Vector2 *faceB, float clip); // Returns clipping value based on a normal and two faces +static Vector2 MathTriangleBarycenter(Vector2 v1, Vector2 v2, Vector2 v3); // Returns the barycenter of a triangle given by 3 points + +//---------------------------------------------------------------------------------- +// Module Functions Definition +//---------------------------------------------------------------------------------- + +// Initializes physics values, pointers and creates physics loop thread +void InitPhysics(void) +{ +#if !defined(PHYSAC_AVOID_TIMMING_SYSTEM) + // Initialize high resolution timer + InitTimerHiRes(); +#endif + + TRACELOG("[PHYSAC] Physics module initialized successfully\n"); +} + +// Sets physics global gravity force +void SetPhysicsGravity(float x, float y) +{ + gravityForce.x = x; + gravityForce.y = y; +} + +// Creates a new circle physics body with generic parameters +PhysicsBody CreatePhysicsBodyCircle(Vector2 pos, float radius, float density) +{ + PhysicsBody body = CreatePhysicsBodyPolygon(pos, radius, PHYSAC_DEFAULT_CIRCLE_VERTICES, density); + return body; +} + +// Creates a new rectangle physics body with generic parameters +PhysicsBody CreatePhysicsBodyRectangle(Vector2 pos, float width, float height, float density) +{ + // NOTE: Make sure body data is initialized to 0 + PhysicsBody body = (PhysicsBody)PHYSAC_CALLOC(sizeof(PhysicsBodyData), 1); + usedMemory += sizeof(PhysicsBodyData); + + int id = FindAvailableBodyIndex(); + if (id != -1) + { + // Initialize new body with generic values + body->id = id; + body->enabled = true; + body->position = pos; + body->shape.type = PHYSICS_POLYGON; + body->shape.body = body; + body->shape.transform = MathMatFromRadians(0.0f); + body->shape.vertexData = CreateRectanglePolygon(pos, CLITERAL(Vector2){ width, height }); + + // Calculate centroid and moment of inertia + Vector2 center = { 0.0f, 0.0f }; + float area = 0.0f; + float inertia = 0.0f; + + for (unsigned int i = 0; i < body->shape.vertexData.vertexCount; i++) + { + // Triangle vertices, third vertex implied as (0, 0) + Vector2 p1 = body->shape.vertexData.positions[i]; + unsigned int nextIndex = (((i + 1) < body->shape.vertexData.vertexCount) ? (i + 1) : 0); + Vector2 p2 = body->shape.vertexData.positions[nextIndex]; + + float D = MathVector2CrossProduct(p1, p2); + float triangleArea = D/2; + + area += triangleArea; + + // Use area to weight the centroid average, not just vertex position + center.x += triangleArea*PHYSAC_K*(p1.x + p2.x); + center.y += triangleArea*PHYSAC_K*(p1.y + p2.y); + + float intx2 = p1.x*p1.x + p2.x*p1.x + p2.x*p2.x; + float inty2 = p1.y*p1.y + p2.y*p1.y + p2.y*p2.y; + inertia += (0.25f*PHYSAC_K*D)*(intx2 + inty2); + } + + center.x *= 1.0f/area; + center.y *= 1.0f/area; + + // Translate vertices to centroid (make the centroid (0, 0) for the polygon in model space) + // Note: this is not really necessary + for (unsigned int i = 0; i < body->shape.vertexData.vertexCount; i++) + { + body->shape.vertexData.positions[i].x -= center.x; + body->shape.vertexData.positions[i].y -= center.y; + } + + body->mass = density*area; + body->inverseMass = ((body->mass != 0.0f) ? 1.0f/body->mass : 0.0f); + body->inertia = density*inertia; + body->inverseInertia = ((body->inertia != 0.0f) ? 1.0f/body->inertia : 0.0f); + body->staticFriction = 0.4f; + body->dynamicFriction = 0.2f; + body->restitution = 0.0f; + body->useGravity = true; + body->isGrounded = false; + body->freezeOrient = false; + + // Add new body to bodies pointers array and update bodies count + bodies[physicsBodiesCount] = body; + physicsBodiesCount++; + + TRACELOG("[PHYSAC] Physic body created successfully (id: %i)\n", body->id); + } + else TRACELOG("[PHYSAC] Physic body could not be created, PHYSAC_MAX_BODIES reached\n"); + + return body; +} + +// Creates a new polygon physics body with generic parameters +PhysicsBody CreatePhysicsBodyPolygon(Vector2 pos, float radius, int sides, float density) +{ + PhysicsBody body = (PhysicsBody)PHYSAC_MALLOC(sizeof(PhysicsBodyData)); + usedMemory += sizeof(PhysicsBodyData); + + int id = FindAvailableBodyIndex(); + if (id != -1) + { + // Initialize new body with generic values + body->id = id; + body->enabled = true; + body->position = pos; + body->velocity = PHYSAC_VECTOR_ZERO; + body->force = PHYSAC_VECTOR_ZERO; + body->angularVelocity = 0.0f; + body->torque = 0.0f; + body->orient = 0.0f; + body->shape.type = PHYSICS_POLYGON; + body->shape.body = body; + body->shape.transform = MathMatFromRadians(0.0f); + body->shape.vertexData = CreateDefaultPolygon(radius, sides); + + // Calculate centroid and moment of inertia + Vector2 center = { 0.0f, 0.0f }; + float area = 0.0f; + float inertia = 0.0f; + + for (unsigned int i = 0; i < body->shape.vertexData.vertexCount; i++) + { + // Triangle vertices, third vertex implied as (0, 0) + Vector2 position1 = body->shape.vertexData.positions[i]; + unsigned int nextIndex = (((i + 1) < body->shape.vertexData.vertexCount) ? (i + 1) : 0); + Vector2 position2 = body->shape.vertexData.positions[nextIndex]; + + float cross = MathVector2CrossProduct(position1, position2); + float triangleArea = cross/2; + + area += triangleArea; + + // Use area to weight the centroid average, not just vertex position + center.x += triangleArea*PHYSAC_K*(position1.x + position2.x); + center.y += triangleArea*PHYSAC_K*(position1.y + position2.y); + + float intx2 = position1.x*position1.x + position2.x*position1.x + position2.x*position2.x; + float inty2 = position1.y*position1.y + position2.y*position1.y + position2.y*position2.y; + inertia += (0.25f*PHYSAC_K*cross)*(intx2 + inty2); + } + + center.x *= 1.0f/area; + center.y *= 1.0f/area; + + // Translate vertices to centroid (make the centroid (0, 0) for the polygon in model space) + // Note: this is not really necessary + for (unsigned int i = 0; i < body->shape.vertexData.vertexCount; i++) + { + body->shape.vertexData.positions[i].x -= center.x; + body->shape.vertexData.positions[i].y -= center.y; + } + + body->mass = density*area; + body->inverseMass = ((body->mass != 0.0f) ? 1.0f/body->mass : 0.0f); + body->inertia = density*inertia; + body->inverseInertia = ((body->inertia != 0.0f) ? 1.0f/body->inertia : 0.0f); + body->staticFriction = 0.4f; + body->dynamicFriction = 0.2f; + body->restitution = 0.0f; + body->useGravity = true; + body->isGrounded = false; + body->freezeOrient = false; + + // Add new body to bodies pointers array and update bodies count + bodies[physicsBodiesCount] = body; + physicsBodiesCount++; + + TRACELOG("[PHYSAC] Physic body created successfully (id: %i)\n", body->id); + } + else TRACELOG("[PHYSAC] Physics body could not be created, PHYSAC_MAX_BODIES reached\n"); + + return body; +} + +// Adds a force to a physics body +void PhysicsAddForce(PhysicsBody body, Vector2 force) +{ + if (body != NULL) body->force = MathVector2Add(body->force, force); +} + +// Adds an angular force to a physics body +void PhysicsAddTorque(PhysicsBody body, float amount) +{ + if (body != NULL) body->torque += amount; +} + +// Shatters a polygon shape physics body to little physics bodies with explosion force +void PhysicsShatter(PhysicsBody body, Vector2 position, float force) +{ + if (body != NULL) + { + if (body->shape.type == PHYSICS_POLYGON) + { + PhysicsVertexData vertexData = body->shape.vertexData; + bool collision = false; + + for (unsigned int i = 0; i < vertexData.vertexCount; i++) + { + Vector2 positionA = body->position; + Vector2 positionB = MathMatVector2Product(body->shape.transform, MathVector2Add(body->position, vertexData.positions[i])); + unsigned int nextIndex = (((i + 1) < vertexData.vertexCount) ? (i + 1) : 0); + Vector2 positionC = MathMatVector2Product(body->shape.transform, MathVector2Add(body->position, vertexData.positions[nextIndex])); + + // Check collision between each triangle + float alpha = ((positionB.y - positionC.y)*(position.x - positionC.x) + (positionC.x - positionB.x)*(position.y - positionC.y))/ + ((positionB.y - positionC.y)*(positionA.x - positionC.x) + (positionC.x - positionB.x)*(positionA.y - positionC.y)); + + float beta = ((positionC.y - positionA.y)*(position.x - positionC.x) + (positionA.x - positionC.x)*(position.y - positionC.y))/ + ((positionB.y - positionC.y)*(positionA.x - positionC.x) + (positionC.x - positionB.x)*(positionA.y - positionC.y)); + + float gamma = 1.0f - alpha - beta; + + if ((alpha > 0.0f) && (beta > 0.0f) & (gamma > 0.0f)) + { + collision = true; + break; + } + } + + if (collision) + { + int count = vertexData.vertexCount; + Vector2 bodyPos = body->position; + Vector2 *vertices = (Vector2 *)PHYSAC_MALLOC(sizeof(Vector2)*count); + Matrix2x2 trans = body->shape.transform; + for (int i = 0; i < count; i++) vertices[i] = vertexData.positions[i]; + + // Destroy shattered physics body + DestroyPhysicsBody(body); + + for (int i = 0; i < count; i++) + { + int nextIndex = (((i + 1) < count) ? (i + 1) : 0); + Vector2 center = MathTriangleBarycenter(vertices[i], vertices[nextIndex], PHYSAC_VECTOR_ZERO); + center = MathVector2Add(bodyPos, center); + Vector2 offset = MathVector2Subtract(center, bodyPos); + + PhysicsBody body = CreatePhysicsBodyPolygon(center, 10, 3, 10); // Create polygon physics body with relevant values + + PhysicsVertexData vertexData = { 0 }; + vertexData.vertexCount = 3; + + vertexData.positions[0] = MathVector2Subtract(vertices[i], offset); + vertexData.positions[1] = MathVector2Subtract(vertices[nextIndex], offset); + vertexData.positions[2] = MathVector2Subtract(position, center); + + // Separate vertices to avoid unnecessary physics collisions + vertexData.positions[0].x *= 0.95f; + vertexData.positions[0].y *= 0.95f; + vertexData.positions[1].x *= 0.95f; + vertexData.positions[1].y *= 0.95f; + vertexData.positions[2].x *= 0.95f; + vertexData.positions[2].y *= 0.95f; + + // Calculate polygon faces normals + for (unsigned int j = 0; j < vertexData.vertexCount; j++) + { + unsigned int nextVertex = (((j + 1) < vertexData.vertexCount) ? (j + 1) : 0); + Vector2 face = MathVector2Subtract(vertexData.positions[nextVertex], vertexData.positions[j]); + + vertexData.normals[j] = CLITERAL(Vector2){ face.y, -face.x }; + MathVector2Normalize(&vertexData.normals[j]); + } + + // Apply computed vertex data to new physics body shape + body->shape.vertexData = vertexData; + body->shape.transform = trans; + + // Calculate centroid and moment of inertia + center = PHYSAC_VECTOR_ZERO; + float area = 0.0f; + float inertia = 0.0f; + + for (unsigned int j = 0; j < body->shape.vertexData.vertexCount; j++) + { + // Triangle vertices, third vertex implied as (0, 0) + Vector2 p1 = body->shape.vertexData.positions[j]; + unsigned int nextVertex = (((j + 1) < body->shape.vertexData.vertexCount) ? (j + 1) : 0); + Vector2 p2 = body->shape.vertexData.positions[nextVertex]; + + float D = MathVector2CrossProduct(p1, p2); + float triangleArea = D/2; + + area += triangleArea; + + // Use area to weight the centroid average, not just vertex position + center.x += triangleArea*PHYSAC_K*(p1.x + p2.x); + center.y += triangleArea*PHYSAC_K*(p1.y + p2.y); + + float intx2 = p1.x*p1.x + p2.x*p1.x + p2.x*p2.x; + float inty2 = p1.y*p1.y + p2.y*p1.y + p2.y*p2.y; + inertia += (0.25f*PHYSAC_K*D)*(intx2 + inty2); + } + + center.x *= 1.0f/area; + center.y *= 1.0f/area; + + body->mass = area; + body->inverseMass = ((body->mass != 0.0f) ? 1.0f/body->mass : 0.0f); + body->inertia = inertia; + body->inverseInertia = ((body->inertia != 0.0f) ? 1.0f/body->inertia : 0.0f); + + // Calculate explosion force direction + Vector2 pointA = body->position; + Vector2 pointB = MathVector2Subtract(vertexData.positions[1], vertexData.positions[0]); + pointB.x /= 2.0f; + pointB.y /= 2.0f; + Vector2 forceDirection = MathVector2Subtract(MathVector2Add(pointA, MathVector2Add(vertexData.positions[0], pointB)), body->position); + MathVector2Normalize(&forceDirection); + forceDirection.x *= force; + forceDirection.y *= force; + + // Apply force to new physics body + PhysicsAddForce(body, forceDirection); + } + + PHYSAC_FREE(vertices); + } + } + } + else TRACELOG("[PHYSAC] WARNING: PhysicsShatter: NULL physic body\n"); +} + +// Returns the current amount of created physics bodies +int GetPhysicsBodiesCount(void) +{ + return physicsBodiesCount; +} + +// Returns a physics body of the bodies pool at a specific index +PhysicsBody GetPhysicsBody(int index) +{ + PhysicsBody body = NULL; + + if (index < (int)physicsBodiesCount) + { + body = bodies[index]; + + if (body == NULL) TRACELOG("[PHYSAC] WARNING: GetPhysicsBody: NULL physic body\n"); + } + else TRACELOG("[PHYSAC] WARNING: Physic body index is out of bounds\n"); + + return body; +} + +// Returns the physics body shape type (PHYSICS_CIRCLE or PHYSICS_POLYGON) +int GetPhysicsShapeType(int index) +{ + int result = -1; + + if (index < (int)physicsBodiesCount) + { + PhysicsBody body = bodies[index]; + + if (body != NULL) result = body->shape.type; + else TRACELOG("[PHYSAC] WARNING: GetPhysicsShapeType: NULL physic body\n"); + } + else TRACELOG("[PHYSAC] WARNING: Physic body index is out of bounds\n"); + + return result; +} + +// Returns the amount of vertices of a physics body shape +int GetPhysicsShapeVerticesCount(int index) +{ + int result = 0; + + if (index < (int)physicsBodiesCount) + { + PhysicsBody body = bodies[index]; + + if (body != NULL) + { + switch (body->shape.type) + { + case PHYSICS_CIRCLE: result = PHYSAC_DEFAULT_CIRCLE_VERTICES; break; + case PHYSICS_POLYGON: result = body->shape.vertexData.vertexCount; break; + default: break; + } + } + else TRACELOG("[PHYSAC] WARNING: GetPhysicsShapeVerticesCount: NULL physic body\n"); + } + else TRACELOG("[PHYSAC] WARNING: Physic body index is out of bounds\n"); + + return result; +} + +// Returns transformed position of a body shape (body position + vertex transformed position) +Vector2 GetPhysicsShapeVertex(PhysicsBody body, int vertex) +{ + Vector2 position = { 0.0f, 0.0f }; + + if (body != NULL) + { + switch (body->shape.type) + { + case PHYSICS_CIRCLE: + { + position.x = body->position.x + cosf(360.0f/PHYSAC_DEFAULT_CIRCLE_VERTICES*vertex*PHYSAC_DEG2RAD)*body->shape.radius; + position.y = body->position.y + sinf(360.0f/PHYSAC_DEFAULT_CIRCLE_VERTICES*vertex*PHYSAC_DEG2RAD)*body->shape.radius; + } break; + case PHYSICS_POLYGON: + { + PhysicsVertexData vertexData = body->shape.vertexData; + position = MathVector2Add(body->position, MathMatVector2Product(body->shape.transform, vertexData.positions[vertex])); + } break; + default: break; + } + } + else TRACELOG("[PHYSAC] WARNING: GetPhysicsShapeVertex: NULL physic body\n"); + + return position; +} + +// Sets physics body shape transform based on radians parameter +void SetPhysicsBodyRotation(PhysicsBody body, float radians) +{ + if (body != NULL) + { + body->orient = radians; + + if (body->shape.type == PHYSICS_POLYGON) body->shape.transform = MathMatFromRadians(radians); + } +} + +// Unitializes and destroys a physics body +void DestroyPhysicsBody(PhysicsBody body) +{ + if (body != NULL) + { + int id = body->id; + int index = -1; + + for (unsigned int i = 0; i < physicsBodiesCount; i++) + { + if (bodies[i]->id == id) + { + index = i; + break; + } + } + + if (index == -1) + { + TRACELOG("[PHYSAC] WARNING: Requested body (id: %i) can not be found\n", id); + return; // Prevent access to index -1 + } + + // Free body allocated memory + PHYSAC_FREE(body); + usedMemory -= sizeof(PhysicsBodyData); + bodies[index] = NULL; + + // Reorder physics bodies pointers array and its catched index + for (unsigned int i = index; i < physicsBodiesCount; i++) + { + if ((i + 1) < physicsBodiesCount) bodies[i] = bodies[i + 1]; + } + + // Update physics bodies count + physicsBodiesCount--; + + TRACELOG("[PHYSAC] Physic body destroyed successfully (id: %i)\n", id); + } + else TRACELOG("[PHYSAC] WARNING: DestroyPhysicsBody: NULL physic body\n"); +} + +// Destroys created physics bodies and manifolds and resets global values +void ResetPhysics(void) +{ + if (physicsBodiesCount > 0) + { + // Unitialize physics bodies dynamic memory allocations + for (int i = physicsBodiesCount - 1; i >= 0; i--) + { + PhysicsBody body = bodies[i]; + + if (body != NULL) + { + PHYSAC_FREE(body); + bodies[i] = NULL; + usedMemory -= sizeof(PhysicsBodyData); + } + } + + physicsBodiesCount = 0; + } + + if (physicsManifoldsCount > 0) + { + // Unitialize physics manifolds dynamic memory allocations + for (int i = physicsManifoldsCount - 1; i >= 0; i--) + { + PhysicsManifold manifold = contacts[i]; + + if (manifold != NULL) + { + PHYSAC_FREE(manifold); + contacts[i] = NULL; + usedMemory -= sizeof(PhysicsManifoldData); + } + } + + physicsManifoldsCount = 0; + } + + TRACELOG("[PHYSAC] Physics module reseted successfully\n"); +} + +// Unitializes physics pointers and exits physics loop thread +void ClosePhysics(void) +{ + // Unitialize physics manifolds dynamic memory allocations + if (physicsManifoldsCount > 0) + { + for (int i = physicsManifoldsCount - 1; i >= 0; i--) DestroyPhysicsManifold(contacts[i]); + } + + // Unitialize physics bodies dynamic memory allocations + if (physicsBodiesCount > 0) + { + for (int i = physicsBodiesCount - 1; i >= 0; i--) DestroyPhysicsBody(bodies[i]); + } + + // Trace log info + if ((physicsBodiesCount > 0) || (usedMemory != 0)) + { + TRACELOG("[PHYSAC] WARNING: Physics module closed with unallocated bodies (BODIES: %i, MEMORY: %i bytes)\n", physicsBodiesCount, usedMemory); + } + else if ((physicsManifoldsCount > 0) || (usedMemory != 0)) + { + TRACELOG("[PHYSAC] WARNING: Pysics module closed with unallocated manifolds (MANIFOLDS: %i, MEMORY: %i bytes)\n", physicsManifoldsCount, usedMemory); + } + else TRACELOG("[PHYSAC] Physics module closed successfully\n"); +} + +// Update physics system +// Physics steps are launched at a fixed time step if enabled +void UpdatePhysics(void) +{ +#if !defined(PHYSAC_AVOID_TIMMING_SYSTEM) + static double deltaTimeAccumulator = 0.0; + + // Calculate current time (ms) + currentTime = GetCurrentTime(); + + // Calculate current delta time (ms) + const double delta = currentTime - startTime; + + // Store the time elapsed since the last frame began + deltaTimeAccumulator += delta; + + // Fixed time stepping loop + while (deltaTimeAccumulator >= deltaTime) + { + UpdatePhysicsStep(); + deltaTimeAccumulator -= deltaTime; + } + + // Record the starting of this frame + startTime = currentTime; +#else + UpdatePhysicsStep(); +#endif +} + +void SetPhysicsTimeStep(double delta) +{ + deltaTime = delta; +} + +//---------------------------------------------------------------------------------- +// Module Internal Functions Definition +//---------------------------------------------------------------------------------- +#if !defined(PHYSAC_AVOID_TIMMING_SYSTEM) +// Initializes hi-resolution MONOTONIC timer +static void InitTimerHiRes(void) +{ +#if defined(_WIN32) + QueryPerformanceFrequency((unsigned long long int *) &frequency); +#endif + +#if defined(__EMSCRIPTEN__) || defined(__linux__) + struct timespec now; + if (clock_gettime(CLOCK_MONOTONIC, &now) == 0) frequency = 1000000000; +#endif + +#if defined(__APPLE__) + mach_timebase_info_data_t timebase; + mach_timebase_info(&timebase); + frequency = (timebase.denom*1e9)/timebase.numer; +#endif + + baseClockTicks = (double)GetClockTicks(); // Get MONOTONIC clock time offset + startTime = GetCurrentTime(); // Get current time in milliseconds +} + +// Get hi-res MONOTONIC time measure in clock ticks +static unsigned long long int GetClockTicks(void) +{ + unsigned long long int value = 0; + +#if defined(_WIN32) + QueryPerformanceCounter((unsigned long long int *) &value); +#endif + +#if defined(__linux__) + struct timespec now; + clock_gettime(CLOCK_MONOTONIC, &now); + value = (unsigned long long int)now.tv_sec*(unsigned long long int)1000000000 + (unsigned long long int)now.tv_nsec; +#endif + +#if defined(__APPLE__) + value = mach_absolute_time(); +#endif + + return value; +} + +// Get current time in milliseconds +static double GetCurrentTime(void) +{ + return (double)(GetClockTicks() - baseClockTicks)/frequency*1000; +} +#endif // !PHYSAC_AVOID_TIMMING_SYSTEM + +// Update physics step (dynamics, collisions and position corrections) +static void UpdatePhysicsStep(void) +{ + // Clear previous generated collisions information + for (int i = (int)physicsManifoldsCount - 1; i >= 0; i--) + { + PhysicsManifold manifold = contacts[i]; + if (manifold != NULL) DestroyPhysicsManifold(manifold); + } + + // Reset physics bodies grounded state + for (unsigned int i = 0; i < physicsBodiesCount; i++) + { + PhysicsBody body = bodies[i]; + body->isGrounded = false; + } + + // Generate new collision information + for (unsigned int i = 0; i < physicsBodiesCount; i++) + { + PhysicsBody bodyA = bodies[i]; + + if (bodyA != NULL) + { + for (unsigned int j = i + 1; j < physicsBodiesCount; j++) + { + PhysicsBody bodyB = bodies[j]; + + if (bodyB != NULL) + { + if ((bodyA->inverseMass == 0) && (bodyB->inverseMass == 0)) continue; + + PhysicsManifold manifold = CreatePhysicsManifold(bodyA, bodyB); + SolvePhysicsManifold(manifold); + + if (manifold->contactsCount > 0) + { + // Create a new manifold with same information as previously solved manifold and add it to the manifolds pool last slot + PhysicsManifold manifold = CreatePhysicsManifold(bodyA, bodyB); + manifold->penetration = manifold->penetration; + manifold->normal = manifold->normal; + manifold->contacts[0] = manifold->contacts[0]; + manifold->contacts[1] = manifold->contacts[1]; + manifold->contactsCount = manifold->contactsCount; + manifold->restitution = manifold->restitution; + manifold->dynamicFriction = manifold->dynamicFriction; + manifold->staticFriction = manifold->staticFriction; + } + } + } + } + } + + // Integrate forces to physics bodies + for (unsigned int i = 0; i < physicsBodiesCount; i++) + { + PhysicsBody body = bodies[i]; + if (body != NULL) IntegratePhysicsForces(body); + } + + // Initialize physics manifolds to solve collisions + for (unsigned int i = 0; i < physicsManifoldsCount; i++) + { + PhysicsManifold manifold = contacts[i]; + if (manifold != NULL) InitializePhysicsManifolds(manifold); + } + + // Integrate physics collisions impulses to solve collisions + for (unsigned int i = 0; i < PHYSAC_COLLISION_ITERATIONS; i++) + { + for (unsigned int j = 0; j < physicsManifoldsCount; j++) + { + PhysicsManifold manifold = contacts[i]; + if (manifold != NULL) IntegratePhysicsImpulses(manifold); + } + } + + // Integrate velocity to physics bodies + for (unsigned int i = 0; i < physicsBodiesCount; i++) + { + PhysicsBody body = bodies[i]; + if (body != NULL) IntegratePhysicsVelocity(body); + } + + // Correct physics bodies positions based on manifolds collision information + for (unsigned int i = 0; i < physicsManifoldsCount; i++) + { + PhysicsManifold manifold = contacts[i]; + if (manifold != NULL) CorrectPhysicsPositions(manifold); + } + + // Clear physics bodies forces + for (unsigned int i = 0; i < physicsBodiesCount; i++) + { + PhysicsBody body = bodies[i]; + if (body != NULL) + { + body->force = PHYSAC_VECTOR_ZERO; + body->torque = 0.0f; + } + } +} + +// Finds a valid index for a new physics body initialization +static int FindAvailableBodyIndex() +{ + int index = -1; + for (int i = 0; i < PHYSAC_MAX_BODIES; i++) + { + int currentId = i; + + // Check if current id already exist in other physics body + for (unsigned int k = 0; k < physicsBodiesCount; k++) + { + if (bodies[k]->id == currentId) + { + currentId++; + break; + } + } + + // If it is not used, use it as new physics body id + if (currentId == (int)i) + { + index = (int)i; + break; + } + } + + return index; +} + +// Creates a default polygon shape with max vertex distance from polygon pivot +static PhysicsVertexData CreateDefaultPolygon(float radius, int sides) +{ + PhysicsVertexData data = { 0 }; + data.vertexCount = sides; + + // Calculate polygon vertices positions + for (unsigned int i = 0; i < data.vertexCount; i++) + { + data.positions[i].x = (float)cosf(360.0f/sides*i*PHYSAC_DEG2RAD)*radius; + data.positions[i].y = (float)sinf(360.0f/sides*i*PHYSAC_DEG2RAD)*radius; + } + + // Calculate polygon faces normals + for (int i = 0; i < (int)data.vertexCount; i++) + { + int nextIndex = (((i + 1) < sides) ? (i + 1) : 0); + Vector2 face = MathVector2Subtract(data.positions[nextIndex], data.positions[i]); + + data.normals[i] = CLITERAL(Vector2){ face.y, -face.x }; + MathVector2Normalize(&data.normals[i]); + } + + return data; +} + +// Creates a rectangle polygon shape based on a min and max positions +static PhysicsVertexData CreateRectanglePolygon(Vector2 pos, Vector2 size) +{ + PhysicsVertexData data = { 0 }; + data.vertexCount = 4; + + // Calculate polygon vertices positions + data.positions[0] = CLITERAL(Vector2){ pos.x + size.x/2, pos.y - size.y/2 }; + data.positions[1] = CLITERAL(Vector2){ pos.x + size.x/2, pos.y + size.y/2 }; + data.positions[2] = CLITERAL(Vector2){ pos.x - size.x/2, pos.y + size.y/2 }; + data.positions[3] = CLITERAL(Vector2){ pos.x - size.x/2, pos.y - size.y/2 }; + + // Calculate polygon faces normals + for (unsigned int i = 0; i < data.vertexCount; i++) + { + int nextIndex = (((i + 1) < data.vertexCount) ? (i + 1) : 0); + Vector2 face = MathVector2Subtract(data.positions[nextIndex], data.positions[i]); + + data.normals[i] = CLITERAL(Vector2){ face.y, -face.x }; + MathVector2Normalize(&data.normals[i]); + } + + return data; +} + +// Finds a valid index for a new manifold initialization +static int FindAvailableManifoldIndex() +{ + int index = -1; + for (int i = 0; i < PHYSAC_MAX_MANIFOLDS; i++) + { + int currentId = i; + + // Check if current id already exist in other physics body + for (unsigned int k = 0; k < physicsManifoldsCount; k++) + { + if (contacts[k]->id == currentId) + { + currentId++; + break; + } + } + + // If it is not used, use it as new physics body id + if (currentId == i) + { + index = i; + break; + } + } + + return index; +} + +// Creates a new physics manifold to solve collision +static PhysicsManifold CreatePhysicsManifold(PhysicsBody a, PhysicsBody b) +{ + PhysicsManifold manifold = (PhysicsManifold)PHYSAC_MALLOC(sizeof(PhysicsManifoldData)); + usedMemory += sizeof(PhysicsManifoldData); + + int id = FindAvailableManifoldIndex(); + if (id != -1) + { + // Initialize new manifold with generic values + manifold->id = id; + manifold->bodyA = a; + manifold->bodyB = b; + manifold->penetration = 0; + manifold->normal = PHYSAC_VECTOR_ZERO; + manifold->contacts[0] = PHYSAC_VECTOR_ZERO; + manifold->contacts[1] = PHYSAC_VECTOR_ZERO; + manifold->contactsCount = 0; + manifold->restitution = 0.0f; + manifold->dynamicFriction = 0.0f; + manifold->staticFriction = 0.0f; + + // Add new body to bodies pointers array and update bodies count + contacts[physicsManifoldsCount] = manifold; + physicsManifoldsCount++; + } + else TRACELOG("[PHYSAC] Physic manifold could not be created, PHYSAC_MAX_MANIFOLDS reached\n"); + + return manifold; +} + +// Unitializes and destroys a physics manifold +static void DestroyPhysicsManifold(PhysicsManifold manifold) +{ + if (manifold != NULL) + { + int id = manifold->id; + int index = -1; + + for (unsigned int i = 0; i < physicsManifoldsCount; i++) + { + if (contacts[i]->id == id) + { + index = i; + break; + } + } + + if (index == -1) return; // Prevent access to index -1 + + // Free manifold allocated memory + PHYSAC_FREE(manifold); + usedMemory -= sizeof(PhysicsManifoldData); + contacts[index] = NULL; + + // Reorder physics manifolds pointers array and its catched index + for (unsigned int i = index; i < physicsManifoldsCount; i++) + { + if ((i + 1) < physicsManifoldsCount) contacts[i] = contacts[i + 1]; + } + + // Update physics manifolds count + physicsManifoldsCount--; + } + else TRACELOG("[PHYSAC] WARNING: DestroyPhysicsManifold: NULL physic manifold\n"); +} + +// Solves a created physics manifold between two physics bodies +static void SolvePhysicsManifold(PhysicsManifold manifold) +{ + switch (manifold->bodyA->shape.type) + { + case PHYSICS_CIRCLE: + { + switch (manifold->bodyB->shape.type) + { + case PHYSICS_CIRCLE: SolveCircleToCircle(manifold); break; + case PHYSICS_POLYGON: SolveCircleToPolygon(manifold); break; + default: break; + } + } break; + case PHYSICS_POLYGON: + { + switch (manifold->bodyB->shape.type) + { + case PHYSICS_CIRCLE: SolvePolygonToCircle(manifold); break; + case PHYSICS_POLYGON: SolvePolygonToPolygon(manifold); break; + default: break; + } + } break; + default: break; + } + + // Update physics body grounded state if normal direction is down and grounded state is not set yet in previous manifolds + if (!manifold->bodyB->isGrounded) manifold->bodyB->isGrounded = (manifold->normal.y < 0); +} + +// Solves collision between two circle shape physics bodies +static void SolveCircleToCircle(PhysicsManifold manifold) +{ + PhysicsBody bodyA = manifold->bodyA; + PhysicsBody bodyB = manifold->bodyB; + + if ((bodyA == NULL) || (bodyB == NULL)) return; + + // Calculate translational vector, which is normal + Vector2 normal = MathVector2Subtract(bodyB->position, bodyA->position); + + float distSqr = MathVector2SqrLen(normal); + float radius = bodyA->shape.radius + bodyB->shape.radius; + + // Check if circles are not in contact + if (distSqr >= radius*radius) + { + manifold->contactsCount = 0; + return; + } + + float distance = sqrtf(distSqr); + manifold->contactsCount = 1; + + if (distance == 0.0f) + { + manifold->penetration = bodyA->shape.radius; + manifold->normal = CLITERAL(Vector2){ 1.0f, 0.0f }; + manifold->contacts[0] = bodyA->position; + } + else + { + manifold->penetration = radius - distance; + manifold->normal = CLITERAL(Vector2){ normal.x/distance, normal.y/distance }; // Faster than using MathVector2Normalize() due to sqrt is already performed + manifold->contacts[0] = CLITERAL(Vector2){ manifold->normal.x*bodyA->shape.radius + bodyA->position.x, manifold->normal.y*bodyA->shape.radius + bodyA->position.y }; + } + + // Update physics body grounded state if normal direction is down + if (!bodyA->isGrounded) bodyA->isGrounded = (manifold->normal.y < 0); +} + +// Solves collision between a circle to a polygon shape physics bodies +static void SolveCircleToPolygon(PhysicsManifold manifold) +{ + PhysicsBody bodyA = manifold->bodyA; + PhysicsBody bodyB = manifold->bodyB; + + if ((bodyA == NULL) || (bodyB == NULL)) return; + + manifold->contactsCount = 0; + + // Transform circle center to polygon transform space + Vector2 center = bodyA->position; + center = MathMatVector2Product(MathMatTranspose(bodyB->shape.transform), MathVector2Subtract(center, bodyB->position)); + + // Find edge with minimum penetration + // It is the same concept as using support points in SolvePolygonToPolygon + float separation = -PHYSAC_FLT_MAX; + int faceNormal = 0; + PhysicsVertexData vertexData = bodyB->shape.vertexData; + + for (unsigned int i = 0; i < vertexData.vertexCount; i++) + { + float currentSeparation = MathVector2DotProduct(vertexData.normals[i], MathVector2Subtract(center, vertexData.positions[i])); + + if (currentSeparation > bodyA->shape.radius) return; + + if (currentSeparation > separation) + { + separation = currentSeparation; + faceNormal = i; + } + } + + // Grab face's vertices + Vector2 v1 = vertexData.positions[faceNormal]; + int nextIndex = (((faceNormal + 1) < (int)vertexData.vertexCount) ? (faceNormal + 1) : 0); + Vector2 v2 = vertexData.positions[nextIndex]; + + // Check to see if center is within polygon + if (separation < PHYSAC_EPSILON) + { + manifold->contactsCount = 1; + Vector2 normal = MathMatVector2Product(bodyB->shape.transform, vertexData.normals[faceNormal]); + manifold->normal = CLITERAL(Vector2){ -normal.x, -normal.y }; + manifold->contacts[0] = CLITERAL(Vector2){ manifold->normal.x*bodyA->shape.radius + bodyA->position.x, manifold->normal.y*bodyA->shape.radius + bodyA->position.y }; + manifold->penetration = bodyA->shape.radius; + return; + } + + // Determine which voronoi region of the edge center of circle lies within + float dot1 = MathVector2DotProduct(MathVector2Subtract(center, v1), MathVector2Subtract(v2, v1)); + float dot2 = MathVector2DotProduct(MathVector2Subtract(center, v2), MathVector2Subtract(v1, v2)); + manifold->penetration = bodyA->shape.radius - separation; + + if (dot1 <= 0.0f) // Closest to v1 + { + if (MathVector2SqrDistance(center, v1) > bodyA->shape.radius*bodyA->shape.radius) return; + + manifold->contactsCount = 1; + Vector2 normal = MathVector2Subtract(v1, center); + normal = MathMatVector2Product(bodyB->shape.transform, normal); + MathVector2Normalize(&normal); + manifold->normal = normal; + v1 = MathMatVector2Product(bodyB->shape.transform, v1); + v1 = MathVector2Add(v1, bodyB->position); + manifold->contacts[0] = v1; + } + else if (dot2 <= 0.0f) // Closest to v2 + { + if (MathVector2SqrDistance(center, v2) > bodyA->shape.radius*bodyA->shape.radius) return; + + manifold->contactsCount = 1; + Vector2 normal = MathVector2Subtract(v2, center); + v2 = MathMatVector2Product(bodyB->shape.transform, v2); + v2 = MathVector2Add(v2, bodyB->position); + manifold->contacts[0] = v2; + normal = MathMatVector2Product(bodyB->shape.transform, normal); + MathVector2Normalize(&normal); + manifold->normal = normal; + } + else // Closest to face + { + Vector2 normal = vertexData.normals[faceNormal]; + + if (MathVector2DotProduct(MathVector2Subtract(center, v1), normal) > bodyA->shape.radius) return; + + normal = MathMatVector2Product(bodyB->shape.transform, normal); + manifold->normal = CLITERAL(Vector2){ -normal.x, -normal.y }; + manifold->contacts[0] = CLITERAL(Vector2){ manifold->normal.x*bodyA->shape.radius + bodyA->position.x, manifold->normal.y*bodyA->shape.radius + bodyA->position.y }; + manifold->contactsCount = 1; + } +} + +// Solves collision between a polygon to a circle shape physics bodies +static void SolvePolygonToCircle(PhysicsManifold manifold) +{ + PhysicsBody bodyA = manifold->bodyA; + PhysicsBody bodyB = manifold->bodyB; + + if ((bodyA == NULL) || (bodyB == NULL)) return; + + manifold->bodyA = bodyB; + manifold->bodyB = bodyA; + SolveCircleToPolygon(manifold); + + manifold->normal.x *= -1.0f; + manifold->normal.y *= -1.0f; +} + +// Solves collision between two polygons shape physics bodies +static void SolvePolygonToPolygon(PhysicsManifold manifold) +{ + if ((manifold->bodyA == NULL) || (manifold->bodyB == NULL)) return; + + PhysicsShape bodyA = manifold->bodyA->shape; + PhysicsShape bodyB = manifold->bodyB->shape; + manifold->contactsCount = 0; + + // Check for separating axis with A shape's face planes + int faceA = 0; + float penetrationA = FindAxisLeastPenetration(&faceA, bodyA, bodyB); + if (penetrationA >= 0.0f) return; + + // Check for separating axis with B shape's face planes + int faceB = 0; + float penetrationB = FindAxisLeastPenetration(&faceB, bodyB, bodyA); + if (penetrationB >= 0.0f) return; + + int referenceIndex = 0; + bool flip = false; // Always point from A shape to B shape + + PhysicsShape refPoly; // Reference + PhysicsShape incPoly; // Incident + + // Determine which shape contains reference face + // Checking bias range for penetration + if (penetrationA >= (penetrationB*0.95f + penetrationA*0.01f)) + { + refPoly = bodyA; + incPoly = bodyB; + referenceIndex = faceA; + } + else + { + refPoly = bodyB; + incPoly = bodyA; + referenceIndex = faceB; + flip = true; + } + + // World space incident face + Vector2 incidentFace[2]; + FindIncidentFace(&incidentFace[0], &incidentFace[1], refPoly, incPoly, referenceIndex); + + // Setup reference face vertices + PhysicsVertexData refData = refPoly.vertexData; + Vector2 v1 = refData.positions[referenceIndex]; + referenceIndex = (((referenceIndex + 1) < (int)refData.vertexCount) ? (referenceIndex + 1) : 0); + Vector2 v2 = refData.positions[referenceIndex]; + + // Transform vertices to world space + v1 = MathMatVector2Product(refPoly.transform, v1); + v1 = MathVector2Add(v1, refPoly.body->position); + v2 = MathMatVector2Product(refPoly.transform, v2); + v2 = MathVector2Add(v2, refPoly.body->position); + + // Calculate reference face side normal in world space + Vector2 sidePlaneNormal = MathVector2Subtract(v2, v1); + MathVector2Normalize(&sidePlaneNormal); + + // Orthogonalize + Vector2 refFaceNormal = { sidePlaneNormal.y, -sidePlaneNormal.x }; + float refC = MathVector2DotProduct(refFaceNormal, v1); + float negSide = MathVector2DotProduct(sidePlaneNormal, v1)*-1; + float posSide = MathVector2DotProduct(sidePlaneNormal, v2); + + // MathVector2Clip incident face to reference face side planes (due to floating point error, possible to not have required points + if (MathVector2Clip(CLITERAL(Vector2){ -sidePlaneNormal.x, -sidePlaneNormal.y }, &incidentFace[0], &incidentFace[1], negSide) < 2) return; + if (MathVector2Clip(sidePlaneNormal, &incidentFace[0], &incidentFace[1], posSide) < 2) return; + + // Flip normal if required + manifold->normal = (flip ? CLITERAL(Vector2){ -refFaceNormal.x, -refFaceNormal.y } : refFaceNormal); + + // Keep points behind reference face + int currentPoint = 0; // MathVector2Clipped points behind reference face + float separation = MathVector2DotProduct(refFaceNormal, incidentFace[0]) - refC; + if (separation <= 0.0f) + { + manifold->contacts[currentPoint] = incidentFace[0]; + manifold->penetration = -separation; + currentPoint++; + } + else manifold->penetration = 0.0f; + + separation = MathVector2DotProduct(refFaceNormal, incidentFace[1]) - refC; + + if (separation <= 0.0f) + { + manifold->contacts[currentPoint] = incidentFace[1]; + manifold->penetration += -separation; + currentPoint++; + + // Calculate total penetration average + manifold->penetration /= currentPoint; + } + + manifold->contactsCount = currentPoint; +} + +// Integrates physics forces into velocity +static void IntegratePhysicsForces(PhysicsBody body) +{ + if ((body == NULL) || (body->inverseMass == 0.0f) || !body->enabled) return; + + body->velocity.x += (float)((body->force.x*body->inverseMass)*(deltaTime/2.0)); + body->velocity.y += (float)((body->force.y*body->inverseMass)*(deltaTime/2.0)); + + if (body->useGravity) + { + body->velocity.x += (float)(gravityForce.x*(deltaTime/1000/2.0)); + body->velocity.y += (float)(gravityForce.y*(deltaTime/1000/2.0)); + } + + if (!body->freezeOrient) body->angularVelocity += (float)(body->torque*body->inverseInertia*(deltaTime/2.0)); +} + +// Initializes physics manifolds to solve collisions +static void InitializePhysicsManifolds(PhysicsManifold manifold) +{ + PhysicsBody bodyA = manifold->bodyA; + PhysicsBody bodyB = manifold->bodyB; + + if ((bodyA == NULL) || (bodyB == NULL)) return; + + // Calculate average restitution, static and dynamic friction + manifold->restitution = sqrtf(bodyA->restitution*bodyB->restitution); + manifold->staticFriction = sqrtf(bodyA->staticFriction*bodyB->staticFriction); + manifold->dynamicFriction = sqrtf(bodyA->dynamicFriction*bodyB->dynamicFriction); + + for (unsigned int i = 0; i < manifold->contactsCount; i++) + { + // Caculate radius from center of mass to contact + Vector2 radiusA = MathVector2Subtract(manifold->contacts[i], bodyA->position); + Vector2 radiusB = MathVector2Subtract(manifold->contacts[i], bodyB->position); + + Vector2 crossA = MathVector2Product(radiusA, bodyA->angularVelocity); + Vector2 crossB = MathVector2Product(radiusB, bodyB->angularVelocity); + + Vector2 radiusV = { 0.0f, 0.0f }; + radiusV.x = bodyB->velocity.x + crossB.x - bodyA->velocity.x - crossA.x; + radiusV.y = bodyB->velocity.y + crossB.y - bodyA->velocity.y - crossA.y; + + // Determine if we should perform a resting collision or not; + // The idea is if the only thing moving this object is gravity, then the collision should be performed without any restitution + if (MathVector2SqrLen(radiusV) < (MathVector2SqrLen(CLITERAL(Vector2){ (float)(gravityForce.x*deltaTime/1000), (float)(gravityForce.y*deltaTime/1000) }) + PHYSAC_EPSILON)) manifold->restitution = 0; + } +} + +// Integrates physics collisions impulses to solve collisions +static void IntegratePhysicsImpulses(PhysicsManifold manifold) +{ + PhysicsBody bodyA = manifold->bodyA; + PhysicsBody bodyB = manifold->bodyB; + + if ((bodyA == NULL) || (bodyB == NULL)) return; + + // Early out and positional correct if both objects have infinite mass + if (fabs(bodyA->inverseMass + bodyB->inverseMass) <= PHYSAC_EPSILON) + { + bodyA->velocity = PHYSAC_VECTOR_ZERO; + bodyB->velocity = PHYSAC_VECTOR_ZERO; + return; + } + + for (unsigned int i = 0; i < manifold->contactsCount; i++) + { + // Calculate radius from center of mass to contact + Vector2 radiusA = MathVector2Subtract(manifold->contacts[i], bodyA->position); + Vector2 radiusB = MathVector2Subtract(manifold->contacts[i], bodyB->position); + + // Calculate relative velocity + Vector2 radiusV = { 0.0f, 0.0f }; + radiusV.x = bodyB->velocity.x + MathVector2Product(radiusB, bodyB->angularVelocity).x - bodyA->velocity.x - MathVector2Product(radiusA, bodyA->angularVelocity).x; + radiusV.y = bodyB->velocity.y + MathVector2Product(radiusB, bodyB->angularVelocity).y - bodyA->velocity.y - MathVector2Product(radiusA, bodyA->angularVelocity).y; + + // Relative velocity along the normal + float contactVelocity = MathVector2DotProduct(radiusV, manifold->normal); + + // Do not resolve if velocities are separating + if (contactVelocity > 0.0f) return; + + float raCrossN = MathVector2CrossProduct(radiusA, manifold->normal); + float rbCrossN = MathVector2CrossProduct(radiusB, manifold->normal); + + float inverseMassSum = bodyA->inverseMass + bodyB->inverseMass + (raCrossN*raCrossN)*bodyA->inverseInertia + (rbCrossN*rbCrossN)*bodyB->inverseInertia; + + // Calculate impulse scalar value + float impulse = -(1.0f + manifold->restitution)*contactVelocity; + impulse /= inverseMassSum; + impulse /= (float)manifold->contactsCount; + + // Apply impulse to each physics body + Vector2 impulseV = { manifold->normal.x*impulse, manifold->normal.y*impulse }; + + if (bodyA->enabled) + { + bodyA->velocity.x += bodyA->inverseMass*(-impulseV.x); + bodyA->velocity.y += bodyA->inverseMass*(-impulseV.y); + if (!bodyA->freezeOrient) bodyA->angularVelocity += bodyA->inverseInertia*MathVector2CrossProduct(radiusA, CLITERAL(Vector2){ -impulseV.x, -impulseV.y }); + } + + if (bodyB->enabled) + { + bodyB->velocity.x += bodyB->inverseMass*(impulseV.x); + bodyB->velocity.y += bodyB->inverseMass*(impulseV.y); + if (!bodyB->freezeOrient) bodyB->angularVelocity += bodyB->inverseInertia*MathVector2CrossProduct(radiusB, impulseV); + } + + // Apply friction impulse to each physics body + radiusV.x = bodyB->velocity.x + MathVector2Product(radiusB, bodyB->angularVelocity).x - bodyA->velocity.x - MathVector2Product(radiusA, bodyA->angularVelocity).x; + radiusV.y = bodyB->velocity.y + MathVector2Product(radiusB, bodyB->angularVelocity).y - bodyA->velocity.y - MathVector2Product(radiusA, bodyA->angularVelocity).y; + + Vector2 tangent = { radiusV.x - (manifold->normal.x*MathVector2DotProduct(radiusV, manifold->normal)), radiusV.y - (manifold->normal.y*MathVector2DotProduct(radiusV, manifold->normal)) }; + MathVector2Normalize(&tangent); + + // Calculate impulse tangent magnitude + float impulseTangent = -MathVector2DotProduct(radiusV, tangent); + impulseTangent /= inverseMassSum; + impulseTangent /= (float)manifold->contactsCount; + + float absImpulseTangent = (float)fabs(impulseTangent); + + // Don't apply tiny friction impulses + if (absImpulseTangent <= PHYSAC_EPSILON) return; + + // Apply coulumb's law + Vector2 tangentImpulse = { 0.0f, 0.0f }; + if (absImpulseTangent < impulse*manifold->staticFriction) tangentImpulse = CLITERAL(Vector2){ tangent.x*impulseTangent, tangent.y*impulseTangent }; + else tangentImpulse = CLITERAL(Vector2){ tangent.x*-impulse*manifold->dynamicFriction, tangent.y*-impulse*manifold->dynamicFriction }; + + // Apply friction impulse + if (bodyA->enabled) + { + bodyA->velocity.x += bodyA->inverseMass*(-tangentImpulse.x); + bodyA->velocity.y += bodyA->inverseMass*(-tangentImpulse.y); + + if (!bodyA->freezeOrient) bodyA->angularVelocity += bodyA->inverseInertia*MathVector2CrossProduct(radiusA, CLITERAL(Vector2){ -tangentImpulse.x, -tangentImpulse.y }); + } + + if (bodyB->enabled) + { + bodyB->velocity.x += bodyB->inverseMass*(tangentImpulse.x); + bodyB->velocity.y += bodyB->inverseMass*(tangentImpulse.y); + + if (!bodyB->freezeOrient) bodyB->angularVelocity += bodyB->inverseInertia*MathVector2CrossProduct(radiusB, tangentImpulse); + } + } +} + +// Integrates physics velocity into position and forces +static void IntegratePhysicsVelocity(PhysicsBody body) +{ + if ((body == NULL) ||!body->enabled) return; + + body->position.x += (float)(body->velocity.x*deltaTime); + body->position.y += (float)(body->velocity.y*deltaTime); + + if (!body->freezeOrient) body->orient += (float)(body->angularVelocity*deltaTime); + body->shape.transform = MathMatFromRadians(body->orient); + + IntegratePhysicsForces(body); +} + +// Corrects physics bodies positions based on manifolds collision information +static void CorrectPhysicsPositions(PhysicsManifold manifold) +{ + PhysicsBody bodyA = manifold->bodyA; + PhysicsBody bodyB = manifold->bodyB; + + if ((bodyA == NULL) || (bodyB == NULL)) return; + + Vector2 correction = { 0.0f, 0.0f }; + correction.x = (PHYSAC_MAX(manifold->penetration - PHYSAC_PENETRATION_ALLOWANCE, 0.0f)/(bodyA->inverseMass + bodyB->inverseMass))*manifold->normal.x*PHYSAC_PENETRATION_CORRECTION; + correction.y = (PHYSAC_MAX(manifold->penetration - PHYSAC_PENETRATION_ALLOWANCE, 0.0f)/(bodyA->inverseMass + bodyB->inverseMass))*manifold->normal.y*PHYSAC_PENETRATION_CORRECTION; + + if (bodyA->enabled) + { + bodyA->position.x -= correction.x*bodyA->inverseMass; + bodyA->position.y -= correction.y*bodyA->inverseMass; + } + + if (bodyB->enabled) + { + bodyB->position.x += correction.x*bodyB->inverseMass; + bodyB->position.y += correction.y*bodyB->inverseMass; + } +} + +// Returns the extreme point along a direction within a polygon +static Vector2 GetSupport(PhysicsShape shape, Vector2 dir) +{ + float bestProjection = -PHYSAC_FLT_MAX; + Vector2 bestVertex = { 0.0f, 0.0f }; + PhysicsVertexData data = shape.vertexData; + + for (unsigned int i = 0; i < data.vertexCount; i++) + { + Vector2 vertex = data.positions[i]; + float projection = MathVector2DotProduct(vertex, dir); + + if (projection > bestProjection) + { + bestVertex = vertex; + bestProjection = projection; + } + } + + return bestVertex; +} + +// Finds polygon shapes axis least penetration +static float FindAxisLeastPenetration(int *faceIndex, PhysicsShape shapeA, PhysicsShape shapeB) +{ + float bestDistance = -PHYSAC_FLT_MAX; + int bestIndex = 0; + + PhysicsVertexData dataA = shapeA.vertexData; + //PhysicsVertexData dataB = shapeB.vertexData; + + for (unsigned int i = 0; i < dataA.vertexCount; i++) + { + // Retrieve a face normal from A shape + Vector2 normal = dataA.normals[i]; + Vector2 transNormal = MathMatVector2Product(shapeA.transform, normal); + + // Transform face normal into B shape's model space + Matrix2x2 buT = MathMatTranspose(shapeB.transform); + normal = MathMatVector2Product(buT, transNormal); + + // Retrieve support point from B shape along -n + Vector2 support = GetSupport(shapeB, CLITERAL(Vector2){ -normal.x, -normal.y }); + + // Retrieve vertex on face from A shape, transform into B shape's model space + Vector2 vertex = dataA.positions[i]; + vertex = MathMatVector2Product(shapeA.transform, vertex); + vertex = MathVector2Add(vertex, shapeA.body->position); + vertex = MathVector2Subtract(vertex, shapeB.body->position); + vertex = MathMatVector2Product(buT, vertex); + + // Compute penetration distance in B shape's model space + float distance = MathVector2DotProduct(normal, MathVector2Subtract(support, vertex)); + + // Store greatest distance + if (distance > bestDistance) + { + bestDistance = distance; + bestIndex = i; + } + } + + *faceIndex = bestIndex; + return bestDistance; +} + +// Finds two polygon shapes incident face +static void FindIncidentFace(Vector2 *v0, Vector2 *v1, PhysicsShape ref, PhysicsShape inc, int index) +{ + PhysicsVertexData refData = ref.vertexData; + PhysicsVertexData incData = inc.vertexData; + + Vector2 referenceNormal = refData.normals[index]; + + // Calculate normal in incident's frame of reference + referenceNormal = MathMatVector2Product(ref.transform, referenceNormal); // To world space + referenceNormal = MathMatVector2Product(MathMatTranspose(inc.transform), referenceNormal); // To incident's model space + + // Find most anti-normal face on polygon + int incidentFace = 0; + float minDot = PHYSAC_FLT_MAX; + + for (unsigned int i = 0; i < incData.vertexCount; i++) + { + float dot = MathVector2DotProduct(referenceNormal, incData.normals[i]); + + if (dot < minDot) + { + minDot = dot; + incidentFace = i; + } + } + + // Assign face vertices for incident face + *v0 = MathMatVector2Product(inc.transform, incData.positions[incidentFace]); + *v0 = MathVector2Add(*v0, inc.body->position); + incidentFace = (((incidentFace + 1) < (int)incData.vertexCount) ? (incidentFace + 1) : 0); + *v1 = MathMatVector2Product(inc.transform, incData.positions[incidentFace]); + *v1 = MathVector2Add(*v1, inc.body->position); +} + +// Returns clipping value based on a normal and two faces +static int MathVector2Clip(Vector2 normal, Vector2 *faceA, Vector2 *faceB, float clip) +{ + int sp = 0; + Vector2 out[2] = { *faceA, *faceB }; + + // Retrieve distances from each endpoint to the line + float distanceA = MathVector2DotProduct(normal, *faceA) - clip; + float distanceB = MathVector2DotProduct(normal, *faceB) - clip; + + // If negative (behind plane) + if (distanceA <= 0.0f) out[sp++] = *faceA; + if (distanceB <= 0.0f) out[sp++] = *faceB; + + // If the points are on different sides of the plane + if ((distanceA*distanceB) < 0.0f) + { + // Push intersection point + float alpha = distanceA/(distanceA - distanceB); + out[sp] = *faceA; + Vector2 delta = MathVector2Subtract(*faceB, *faceA); + delta.x *= alpha; + delta.y *= alpha; + out[sp] = MathVector2Add(out[sp], delta); + sp++; + } + + // Assign the new converted values + *faceA = out[0]; + *faceB = out[1]; + + return sp; +} + +// Returns the barycenter of a triangle given by 3 points +static Vector2 MathTriangleBarycenter(Vector2 v1, Vector2 v2, Vector2 v3) +{ + Vector2 result = { 0.0f, 0.0f }; + + result.x = (v1.x + v2.x + v3.x)/3; + result.y = (v1.y + v2.y + v3.y)/3; + + return result; +} + +// Returns the cross product of a vector and a value +static inline Vector2 MathVector2Product(Vector2 vector, float value) +{ + Vector2 result = { -value*vector.y, value*vector.x }; + return result; +} + +// Returns the cross product of two vectors +static inline float MathVector2CrossProduct(Vector2 v1, Vector2 v2) +{ + return (v1.x*v2.y - v1.y*v2.x); +} + +// Returns the len square root of a vector +static inline float MathVector2SqrLen(Vector2 vector) +{ + return (vector.x*vector.x + vector.y*vector.y); +} + +// Returns the dot product of two vectors +static inline float MathVector2DotProduct(Vector2 v1, Vector2 v2) +{ + return (v1.x*v2.x + v1.y*v2.y); +} + +// Returns the square root of distance between two vectors +static inline float MathVector2SqrDistance(Vector2 v1, Vector2 v2) +{ + Vector2 dir = MathVector2Subtract(v1, v2); + return MathVector2DotProduct(dir, dir); +} + +// Returns the normalized values of a vector +static void MathVector2Normalize(Vector2 *vector) +{ + float length, ilength; + + Vector2 aux = *vector; + length = sqrtf(aux.x*aux.x + aux.y*aux.y); + + if (length == 0) length = 1.0f; + + ilength = 1.0f/length; + + vector->x *= ilength; + vector->y *= ilength; +} + +// Returns the sum of two given vectors +static inline Vector2 MathVector2Add(Vector2 v1, Vector2 v2) +{ + Vector2 result = { v1.x + v2.x, v1.y + v2.y }; + return result; +} + +// Returns the subtract of two given vectors +static inline Vector2 MathVector2Subtract(Vector2 v1, Vector2 v2) +{ + Vector2 result = { v1.x - v2.x, v1.y - v2.y }; + return result; +} + +// Creates a matrix 2x2 from a given radians value +static Matrix2x2 MathMatFromRadians(float radians) +{ + float cos = cosf(radians); + float sin = sinf(radians); + + Matrix2x2 result = { cos, -sin, sin, cos }; + return result; +} + +// Returns the transpose of a given matrix 2x2 +static inline Matrix2x2 MathMatTranspose(Matrix2x2 matrix) +{ + Matrix2x2 result = { matrix.m00, matrix.m10, matrix.m01, matrix.m11 }; + return result; +} + +// Multiplies a vector by a matrix 2x2 +static inline Vector2 MathMatVector2Product(Matrix2x2 matrix, Vector2 vector) +{ + Vector2 result = { matrix.m00*vector.x + matrix.m01*vector.y, matrix.m10*vector.x + matrix.m11*vector.y }; + return result; +} + +#endif // PHYSAC_IMPLEMENTATION diff --git a/include/raudio.h b/include/raudio.h new file mode 100644 index 0000000..7e3c42f --- /dev/null +++ b/include/raudio.h @@ -0,0 +1,198 @@ +/********************************************************************************************** +* +* raudio v1.0 - A simple and easy-to-use audio library based on miniaudio +* +* FEATURES: +* - Manage audio device (init/close) +* - Load and unload audio files +* - Format wave data (sample rate, size, channels) +* - Play/Stop/Pause/Resume loaded audio +* - Manage mixing channels +* - Manage raw audio context +* +* DEPENDENCIES: +* miniaudio.h - Audio device management lib (https://github.com/dr-soft/miniaudio) +* stb_vorbis.h - Ogg audio files loading (http://www.nothings.org/stb_vorbis/) +* dr_mp3.h - MP3 audio file loading (https://github.com/mackron/dr_libs) +* dr_flac.h - FLAC audio file loading (https://github.com/mackron/dr_libs) +* jar_xm.h - XM module file loading +* jar_mod.h - MOD audio file loading +* +* CONTRIBUTORS: +* David Reid (github: @mackron) (Nov. 2017): +* - Complete port to miniaudio library +* +* Joshua Reisenauer (github: @kd7tck) (2015) +* - XM audio module support (jar_xm) +* - MOD audio module support (jar_mod) +* - Mixing channels support +* - Raw audio context support +* +* +* LICENSE: zlib/libpng +* +* Copyright (c) 2014-2021 Ramon Santamaria (@raysan5) +* +* This software is provided "as-is", without any express or implied warranty. In no event +* will the authors be held liable for any damages arising from the use of this software. +* +* Permission is granted to anyone to use this software for any purpose, including commercial +* applications, and to alter it and redistribute it freely, subject to the following restrictions: +* +* 1. The origin of this software must not be misrepresented; you must not claim that you +* wrote the original software. If you use this software in a product, an acknowledgment +* in the product documentation would be appreciated but is not required. +* +* 2. Altered source versions must be plainly marked as such, and must not be misrepresented +* as being the original software. +* +* 3. This notice may not be removed or altered from any source distribution. +* +**********************************************************************************************/ + +#ifndef RAUDIO_H +#define RAUDIO_H + +//---------------------------------------------------------------------------------- +// Defines and Macros +//---------------------------------------------------------------------------------- +// Allow custom memory allocators +#ifndef RL_MALLOC + #define RL_MALLOC(sz) malloc(sz) +#endif +#ifndef RL_CALLOC + #define RL_CALLOC(n,sz) calloc(n,sz) +#endif +#ifndef RL_FREE + #define RL_FREE(p) free(p) +#endif + +//---------------------------------------------------------------------------------- +// Types and Structures Definition +//---------------------------------------------------------------------------------- +#ifndef __cplusplus +// Boolean type + #if !defined(_STDBOOL_H) + typedef enum { false, true } bool; + #define _STDBOOL_H + #endif +#endif + +// Wave, audio wave data +typedef struct Wave { + unsigned int frameCount; // Total number of frames (considering channels) + unsigned int sampleRate; // Frequency (samples per second) + unsigned int sampleSize; // Bit depth (bits per sample): 8, 16, 32 (24 not supported) + unsigned int channels; // Number of channels (1-mono, 2-stereo, ...) + void *data; // Buffer data pointer +} Wave; + +typedef struct rAudioBuffer rAudioBuffer; + +// AudioStream, custom audio stream +typedef struct AudioStream { + rAudioBuffer *buffer; // Pointer to internal data used by the audio system + + unsigned int sampleRate; // Frequency (samples per second) + unsigned int sampleSize; // Bit depth (bits per sample): 8, 16, 32 (24 not supported) + unsigned int channels; // Number of channels (1-mono, 2-stereo, ...) +} AudioStream; + +// Sound +typedef struct Sound { + AudioStream stream; // Audio stream + unsigned int frameCount; // Total number of frames (considering channels) +} Sound; + +// Music, audio stream, anything longer than ~10 seconds should be streamed +typedef struct Music { + AudioStream stream; // Audio stream + unsigned int frameCount; // Total number of frames (considering channels) + bool looping; // Music looping enable + + int ctxType; // Type of music context (audio filetype) + void *ctxData; // Audio context data, depends on type +} Music; + +//---------------------------------------------------------------------------------- +// Global Variables Definition +//---------------------------------------------------------------------------------- +//... + +//---------------------------------------------------------------------------------- +// Module Functions Declaration +//---------------------------------------------------------------------------------- + +#ifdef __cplusplus +extern "C" { // Prevents name mangling of functions +#endif + +// Audio device management functions +void InitAudioDevice(void); // Initialize audio device and context +void CloseAudioDevice(void); // Close the audio device and context +bool IsAudioDeviceReady(void); // Check if audio device has been initialized successfully +void SetMasterVolume(float volume); // Set master volume (listener) + +// Wave/Sound loading/unloading functions +Wave LoadWave(const char *fileName); // Load wave data from file +Wave LoadWaveFromMemory(const char *fileType, const unsigned char *fileData, int dataSize); // Load wave from memory buffer, fileType refers to extension: i.e. ".wav" +Sound LoadSound(const char *fileName); // Load sound from file +Sound LoadSoundFromWave(Wave wave); // Load sound from wave data +void UpdateSound(Sound sound, const void *data, int samplesCount);// Update sound buffer with new data +void UnloadWave(Wave wave); // Unload wave data +void UnloadSound(Sound sound); // Unload sound +bool ExportWave(Wave wave, const char *fileName); // Export wave data to file, returns true on success +bool ExportWaveAsCode(Wave wave, const char *fileName); // Export wave sample data to code (.h), returns true on success + +// Wave/Sound management functions +void PlaySound(Sound sound); // Play a sound +void StopSound(Sound sound); // Stop playing a sound +void PauseSound(Sound sound); // Pause a sound +void ResumeSound(Sound sound); // Resume a paused sound +void PlaySoundMulti(Sound sound); // Play a sound (using multichannel buffer pool) +void StopSoundMulti(void); // Stop any sound playing (using multichannel buffer pool) +int GetSoundsPlaying(void); // Get number of sounds playing in the multichannel +bool IsSoundPlaying(Sound sound); // Check if a sound is currently playing +void SetSoundVolume(Sound sound, float volume); // Set volume for a sound (1.0 is max level) +void SetSoundPitch(Sound sound, float pitch); // Set pitch for a sound (1.0 is base level) +void WaveFormat(Wave *wave, int sampleRate, int sampleSize, int channels); // Convert wave data to desired format +Wave WaveCopy(Wave wave); // Copy a wave to a new wave +void WaveCrop(Wave *wave, int initSample, int finalSample); // Crop a wave to defined samples range +float *LoadWaveSamples(Wave wave); // Load samples data from wave as a floats array +void UnloadWaveSamples(float *samples); // Unload samples data loaded with LoadWaveSamples() + +// Music management functions +Music LoadMusicStream(const char *fileName); // Load music stream from file +Music LoadMusicStreamFromMemory(const char *fileType, unsigned char* data, int dataSize); // Load music stream from data +void UnloadMusicStream(Music music); // Unload music stream +void PlayMusicStream(Music music); // Start music playing +bool IsMusicStreamPlaying(Music music); // Check if music is playing +void UpdateMusicStream(Music music); // Updates buffers for music streaming +void StopMusicStream(Music music); // Stop music playing +void PauseMusicStream(Music music); // Pause music playing +void ResumeMusicStream(Music music); // Resume playing paused music +void SeekMusicStream(Music music, float position); // Seek music to a position (in seconds) +void SetMusicVolume(Music music, float volume); // Set volume for music (1.0 is max level) +void SetMusicPitch(Music music, float pitch); // Set pitch for a music (1.0 is base level) +float GetMusicTimeLength(Music music); // Get music time length (in seconds) +float GetMusicTimePlayed(Music music); // Get current music time played (in seconds) + +// AudioStream management functions +AudioStream LoadAudioStream(unsigned int sampleRate, unsigned int sampleSize, unsigned int channels); // Load audio stream (to stream raw audio pcm data) +void UpdateAudioStream(AudioStream stream, const void *data, int samplesCount); // Update audio stream buffers with data +void UnloadAudioStream(AudioStream stream); // Unload audio stream and free memory +bool IsAudioStreamProcessed(AudioStream stream); // Check if any audio stream buffers requires refill +void PlayAudioStream(AudioStream stream); // Play audio stream +void PauseAudioStream(AudioStream stream); // Pause audio stream +void ResumeAudioStream(AudioStream stream); // Resume audio stream +bool IsAudioStreamPlaying(AudioStream stream); // Check if audio stream is playing +void StopAudioStream(AudioStream stream); // Stop audio stream +void SetAudioStreamVolume(AudioStream stream, float volume); // Set volume for audio stream (1.0 is max level) +void SetAudioStreamPitch(AudioStream stream, float pitch); // Set pitch for audio stream (1.0 is base level) +void SetAudioStreamBufferSizeDefault(int size); // Default size for new audio streams + +#ifdef __cplusplus +} +#endif + +#endif // RAUDIO_H diff --git a/include/raygui.h b/include/raygui.h new file mode 100644 index 0000000..dfb7792 --- /dev/null +++ b/include/raygui.h @@ -0,0 +1,4342 @@ +/******************************************************************************************* +* +* raygui v3.0 - A simple and easy-to-use immediate-mode gui library +* +* DESCRIPTION: +* +* raygui is a tools-dev-focused immediate-mode-gui library based on raylib but also +* available as a standalone library, as long as input and drawing functions are provided. +* +* Controls provided: +* +* # Container/separators Controls +* - WindowBox +* - GroupBox +* - Line +* - Panel +* +* # Basic Controls +* - Label +* - Button +* - LabelButton --> Label +* - Toggle +* - ToggleGroup --> Toggle +* - CheckBox +* - ComboBox +* - DropdownBox +* - TextBox +* - TextBoxMulti +* - ValueBox --> TextBox +* - Spinner --> Button, ValueBox +* - Slider +* - SliderBar --> Slider +* - ProgressBar +* - StatusBar +* - ScrollBar +* - ScrollPanel +* - DummyRec +* - Grid +* +* # Advance Controls +* - ListView +* - ColorPicker --> ColorPanel, ColorBarHue +* - MessageBox --> Window, Label, Button +* - TextInputBox --> Window, Label, TextBox, Button +* +* It also provides a set of functions for styling the controls based on its properties (size, color). +* +* +* GUI STYLE (guiStyle): +* +* raygui uses a global data array for all gui style properties (allocated on data segment by default), +* when a new style is loaded, it is loaded over the global style... but a default gui style could always be +* recovered with GuiLoadStyleDefault() function, that overwrites the current style to the default one +* +* The global style array size is fixed and depends on the number of controls and properties: +* +* static unsigned int guiStyle[RAYGUI_MAX_CONTROLS*(RAYGUI_MAX_PROPS_BASE + RAYGUI_MAX_PROPS_EXTENDED)]; +* +* guiStyle size is by default: 16*(16 + 8) = 384*4 = 1536 bytes = 1.5 KB +* +* Note that the first set of BASE properties (by default guiStyle[0..15]) belong to the generic style +* used for all controls, when any of those base values is set, it is automatically populated to all +* controls, so, specific control values overwriting generic style should be set after base values. +* +* After the first BASE set we have the EXTENDED properties (by default guiStyle[16..23]), those +* properties are actually common to all controls and can not be overwritten individually (like BASE ones) +* Some of those properties are: TEXT_SIZE, TEXT_SPACING, LINE_COLOR, BACKGROUND_COLOR +* +* Custom control properties can be defined using the EXTENDED properties for each independent control. +* +* TOOL: rGuiStyler is a visual tool to customize raygui style. +* +* +* GUI ICONS (guiIcons): +* +* raygui could use a global array containing icons data (allocated on data segment by default), +* a custom icons set could be loaded over this array using GuiLoadIcons(), but loaded icons set +* must be same RICON_SIZE and no more than RICON_MAX_ICONS will be loaded +* +* Every icon is codified in binary form, using 1 bit per pixel, so, every 16x16 icon +* requires 8 integers (16*16/32) to be stored in memory. +* +* When the icon is draw, actually one quad per pixel is drawn if the bit for that pixel is set. +* +* The global icons array size is fixed and depends on the number of icons and size: +* +* static unsigned int guiIcons[RICON_MAX_ICONS*RICON_DATA_ELEMENTS]; +* +* guiIcons size is by default: 256*(16*16/32) = 2048*4 = 8192 bytes = 8 KB +* +* TOOL: rGuiIcons is a visual tool to customize raygui icons. +* +* +* CONFIGURATION: +* +* #define RAYGUI_IMPLEMENTATION +* Generates the implementation of the library into the included file. +* If not defined, the library is in header only mode and can be included in other headers +* or source files without problems. But only ONE file should hold the implementation. +* +* #define RAYGUI_STANDALONE +* Avoid raylib.h header inclusion in this file. Data types defined on raylib are defined +* internally in the library and input management and drawing functions must be provided by +* the user (check library implementation for further details). +* +* #define RAYGUI_NO_RICONS +* Avoid including embedded ricons data (256 icons, 16x16 pixels, 1-bit per pixel, 2KB) +* +* #define RAYGUI_CUSTOM_RICONS +* Includes custom ricons.h header defining a set of custom icons, +* this file can be generated using rGuiIcons tool +* +* +* VERSIONS HISTORY: +* +* 3.0 (xx-Sep-2021) Integrated ricons data to avoid external file +* REDESIGNED: GuiTextBoxMulti() +* REMOVED: GuiImageButton*() +* Multiple minor tweaks and bugs corrected +* 2.9 (17-Mar-2021) REMOVED: Tooltip API +* 2.8 (03-May-2020) Centralized rectangles drawing to GuiDrawRectangle() +* 2.7 (20-Feb-2020) ADDED: Possible tooltips API +* 2.6 (09-Sep-2019) ADDED: GuiTextInputBox() +* REDESIGNED: GuiListView*(), GuiDropdownBox(), GuiSlider*(), GuiProgressBar(), GuiMessageBox() +* REVIEWED: GuiTextBox(), GuiSpinner(), GuiValueBox(), GuiLoadStyle() +* Replaced property INNER_PADDING by TEXT_PADDING, renamed some properties +* ADDED: 8 new custom styles ready to use +* Multiple minor tweaks and bugs corrected +* 2.5 (28-May-2019) Implemented extended GuiTextBox(), GuiValueBox(), GuiSpinner() +* 2.3 (29-Apr-2019) ADDED: rIcons auxiliar library and support for it, multiple controls reviewed +* Refactor all controls drawing mechanism to use control state +* 2.2 (05-Feb-2019) ADDED: GuiScrollBar(), GuiScrollPanel(), reviewed GuiListView(), removed Gui*Ex() controls +* 2.1 (26-Dec-2018) REDESIGNED: GuiCheckBox(), GuiComboBox(), GuiDropdownBox(), GuiToggleGroup() > Use combined text string +* REDESIGNED: Style system (breaking change) +* 2.0 (08-Nov-2018) ADDED: Support controls guiLock and custom fonts +* REVIEWED: GuiComboBox(), GuiListView()... +* 1.9 (09-Oct-2018) REVIEWED: GuiGrid(), GuiTextBox(), GuiTextBoxMulti(), GuiValueBox()... +* 1.8 (01-May-2018) Lot of rework and redesign to align with rGuiStyler and rGuiLayout +* 1.5 (21-Jun-2017) Working in an improved styles system +* 1.4 (15-Jun-2017) Rewritten all GUI functions (removed useless ones) +* 1.3 (12-Jun-2017) Complete redesign of style system +* 1.1 (01-Jun-2017) Complete review of the library +* 1.0 (07-Jun-2016) Converted to header-only by Ramon Santamaria. +* 0.9 (07-Mar-2016) Reviewed and tested by Albert Martos, Ian Eito, Sergio Martinez and Ramon Santamaria. +* 0.8 (27-Aug-2015) Initial release. Implemented by Kevin Gato, Daniel Nicolás and Ramon Santamaria. +* +* +* CONTRIBUTORS: +* +* Ramon Santamaria: Supervision, review, redesign, update and maintenance +* Vlad Adrian: Complete rewrite of GuiTextBox() to support extended features (2019) +* Sergio Martinez: Review, testing (2015) and redesign of multiple controls (2018) +* Adria Arranz: Testing and Implementation of additional controls (2018) +* Jordi Jorba: Testing and Implementation of additional controls (2018) +* Albert Martos: Review and testing of the library (2015) +* Ian Eito: Review and testing of the library (2015) +* Kevin Gato: Initial implementation of basic components (2014) +* Daniel Nicolas: Initial implementation of basic components (2014) +* +* +* LICENSE: zlib/libpng +* +* Copyright (c) 2014-2021 Ramon Santamaria (@raysan5) +* +* This software is provided "as-is", without any express or implied warranty. In no event +* will the authors be held liable for any damages arising from the use of this software. +* +* Permission is granted to anyone to use this software for any purpose, including commercial +* applications, and to alter it and redistribute it freely, subject to the following restrictions: +* +* 1. The origin of this software must not be misrepresented; you must not claim that you +* wrote the original software. If you use this software in a product, an acknowledgment +* in the product documentation would be appreciated but is not required. +* +* 2. Altered source versions must be plainly marked as such, and must not be misrepresented +* as being the original software. +* +* 3. This notice may not be removed or altered from any source distribution. +* +**********************************************************************************************/ + +#ifndef RAYGUI_H +#define RAYGUI_H + +#define RAYGUI_VERSION "3.0" + +#if !defined(RAYGUI_STANDALONE) + #include "raylib.h" +#endif + +// Function specifiers in case library is build/used as a shared library (Windows) +// NOTE: Microsoft specifiers to tell compiler that symbols are imported/exported from a .dll +#if defined(_WIN32) + #if defined(BUILD_LIBTYPE_SHARED) + #define RAYGUIAPI __declspec(dllexport) // We are building the library as a Win32 shared library (.dll) + #elif defined(USE_LIBTYPE_SHARED) + #define RAYGUIAPI __declspec(dllimport) // We are using the library as a Win32 shared library (.dll) + #endif +#endif + +// Function specifiers definition +#ifndef RAYGUIAPI + #define RAYGUIAPI // Functions defined as 'extern' by default (implicit specifiers) +#endif + +//---------------------------------------------------------------------------------- +// Defines and Macros +//---------------------------------------------------------------------------------- + +// Allow custom memory allocators +#ifndef RAYGUI_MALLOC + #define RAYGUI_MALLOC(sz) malloc(sz) +#endif +#ifndef RAYGUI_CALLOC + #define RAYGUI_CALLOC(n,sz) calloc(n,sz) +#endif +#ifndef RAYGUI_FREE + #define RAYGUI_FREE(p) free(p) +#endif + +// TODO: Implement custom TraceLog() +#define TRACELOG(level, ...) (void)0 + +//---------------------------------------------------------------------------------- +// Types and Structures Definition +// NOTE: Some types are required for RAYGUI_STANDALONE usage +//---------------------------------------------------------------------------------- +#if defined(RAYGUI_STANDALONE) + #ifndef __cplusplus + // Boolean type + #ifndef true + typedef enum { false, true } bool; + #endif + #endif + + // Vector2 type + typedef struct Vector2 { + float x; + float y; + } Vector2; + + // Vector3 type // -- ConvertHSVtoRGB(), ConvertRGBtoHSV() + typedef struct Vector3 { + float x; + float y; + float z; + } Vector3; + + // Color type, RGBA (32bit) + typedef struct Color { + unsigned char r; + unsigned char g; + unsigned char b; + unsigned char a; + } Color; + + // Rectangle type + typedef struct Rectangle { + float x; + float y; + float width; + float height; + } Rectangle; + + // TODO: Texture2D type is very coupled to raylib, required by Font type + // It should be redesigned to be provided by user + typedef struct Texture2D { + unsigned int id; // OpenGL texture id + int width; // Texture base width + int height; // Texture base height + int mipmaps; // Mipmap levels, 1 by default + int format; // Data format (PixelFormat type) + } Texture2D; + + // GlyphInfo, font characters glyphs info + typedef struct GlyphInfo { + int value; // Character value (Unicode) + int offsetX; // Character offset X when drawing + int offsetY; // Character offset Y when drawing + int advanceX; // Character advance position X + Image image; // Character image data + } GlyphInfo; + + // TODO: Font type is very coupled to raylib, mostly required by GuiLoadStyle() + // It should be redesigned to be provided by user + typedef struct Font { + int baseSize; // Base size (default chars height) + int glyphCount; // Number of characters + Texture2D texture; // Characters texture atlas + Rectangle *recs; // Characters rectangles in texture + GlyphInfo *chars; // Characters info data + } Font; +#endif + +// Style property +typedef struct GuiStyleProp { + unsigned short controlId; + unsigned short propertyId; + int propertyValue; +} GuiStyleProp; + +// Gui control state +typedef enum { + GUI_STATE_NORMAL = 0, + GUI_STATE_FOCUSED, + GUI_STATE_PRESSED, + GUI_STATE_DISABLED, +} GuiControlState; + +// Gui control text alignment +typedef enum { + GUI_TEXT_ALIGN_LEFT = 0, + GUI_TEXT_ALIGN_CENTER, + GUI_TEXT_ALIGN_RIGHT, +} GuiTextAlignment; + +// Gui controls +typedef enum { + DEFAULT = 0, // Generic control -> populates to all controls when set + LABEL, // Used also for: LABELBUTTON + BUTTON, + TOGGLE, // Used also for: TOGGLEGROUP + SLIDER, // Used also for: SLIDERBAR + PROGRESSBAR, + CHECKBOX, + COMBOBOX, + DROPDOWNBOX, + TEXTBOX, // Used also for: TEXTBOXMULTI + VALUEBOX, + SPINNER, + LISTVIEW, + COLORPICKER, + SCROLLBAR, + STATUSBAR +} GuiControl; + +// Gui base properties for every control +// NOTE: RAYGUI_MAX_PROPS_BASE properties (by default 16 properties) +typedef enum { + BORDER_COLOR_NORMAL = 0, + BASE_COLOR_NORMAL, + TEXT_COLOR_NORMAL, + BORDER_COLOR_FOCUSED, + BASE_COLOR_FOCUSED, + TEXT_COLOR_FOCUSED, + BORDER_COLOR_PRESSED, + BASE_COLOR_PRESSED, + TEXT_COLOR_PRESSED, + BORDER_COLOR_DISABLED, + BASE_COLOR_DISABLED, + TEXT_COLOR_DISABLED, + BORDER_WIDTH, + TEXT_PADDING, + TEXT_ALIGNMENT, + RESERVED +} GuiControlProperty; + +// Gui extended properties depend on control +// NOTE: RAYGUI_MAX_PROPS_EXTENDED properties (by default 8 properties) + +// DEFAULT extended properties +// NOTE: Those properties are actually common to all controls +typedef enum { + TEXT_SIZE = 16, + TEXT_SPACING, + LINE_COLOR, + BACKGROUND_COLOR, +} GuiDefaultProperty; + +// Label +//typedef enum { } GuiLabelProperty; + +// Button +//typedef enum { } GuiButtonProperty; + +// Toggle/ToggleGroup +typedef enum { + GROUP_PADDING = 16, +} GuiToggleProperty; + +// Slider/SliderBar +typedef enum { + SLIDER_WIDTH = 16, + SLIDER_PADDING +} GuiSliderProperty; + +// ProgressBar +typedef enum { + PROGRESS_PADDING = 16, +} GuiProgressBarProperty; + +// CheckBox +typedef enum { + CHECK_PADDING = 16 +} GuiCheckBoxProperty; + +// ComboBox +typedef enum { + COMBO_BUTTON_WIDTH = 16, + COMBO_BUTTON_PADDING +} GuiComboBoxProperty; + +// DropdownBox +typedef enum { + ARROW_PADDING = 16, + DROPDOWN_ITEMS_PADDING +} GuiDropdownBoxProperty; + +// TextBox/TextBoxMulti/ValueBox/Spinner +typedef enum { + TEXT_INNER_PADDING = 16, + TEXT_LINES_PADDING, + COLOR_SELECTED_FG, + COLOR_SELECTED_BG +} GuiTextBoxProperty; + +// Spinner +typedef enum { + SPIN_BUTTON_WIDTH = 16, + SPIN_BUTTON_PADDING, +} GuiSpinnerProperty; + +// ScrollBar +typedef enum { + ARROWS_SIZE = 16, + ARROWS_VISIBLE, + SCROLL_SLIDER_PADDING, + SCROLL_SLIDER_SIZE, + SCROLL_PADDING, + SCROLL_SPEED, +} GuiScrollBarProperty; + +// ScrollBar side +typedef enum { + SCROLLBAR_LEFT_SIDE = 0, + SCROLLBAR_RIGHT_SIDE +} GuiScrollBarSide; + +// ListView +typedef enum { + LIST_ITEMS_HEIGHT = 16, + LIST_ITEMS_PADDING, + SCROLLBAR_WIDTH, + SCROLLBAR_SIDE, +} GuiListViewProperty; + +// ColorPicker +typedef enum { + COLOR_SELECTOR_SIZE = 16, + HUEBAR_WIDTH, // Right hue bar width + HUEBAR_PADDING, // Right hue bar separation from panel + HUEBAR_SELECTOR_HEIGHT, // Right hue bar selector height + HUEBAR_SELECTOR_OVERFLOW // Right hue bar selector overflow +} GuiColorPickerProperty; + +//---------------------------------------------------------------------------------- +// Global Variables Definition +//---------------------------------------------------------------------------------- +// ... + +//---------------------------------------------------------------------------------- +// Module Functions Declaration +//---------------------------------------------------------------------------------- + +#if defined(__cplusplus) +extern "C" { // Prevents name mangling of functions +#endif + +// Global gui state control functions +RAYGUIAPI void GuiEnable(void); // Enable gui controls (global state) +RAYGUIAPI void GuiDisable(void); // Disable gui controls (global state) +RAYGUIAPI void GuiLock(void); // Lock gui controls (global state) +RAYGUIAPI void GuiUnlock(void); // Unlock gui controls (global state) +RAYGUIAPI bool GuiIsLocked(void); // Check if gui is locked (global state) +RAYGUIAPI void GuiFade(float alpha); // Set gui controls alpha (global state), alpha goes from 0.0f to 1.0f +RAYGUIAPI void GuiSetState(int state); // Set gui state (global state) +RAYGUIAPI int GuiGetState(void); // Get gui state (global state) + +// Font set/get functions +RAYGUIAPI void GuiSetFont(Font font); // Set gui custom font (global state) +RAYGUIAPI Font GuiGetFont(void); // Get gui custom font (global state) + +// Style set/get functions +RAYGUIAPI void GuiSetStyle(int control, int property, int value); // Set one style property +RAYGUIAPI int GuiGetStyle(int control, int property); // Get one style property + +// Container/separator controls, useful for controls organization +RAYGUIAPI bool GuiWindowBox(Rectangle bounds, const char *title); // Window Box control, shows a window that can be closed +RAYGUIAPI void GuiGroupBox(Rectangle bounds, const char *text); // Group Box control with text name +RAYGUIAPI void GuiLine(Rectangle bounds, const char *text); // Line separator control, could contain text +RAYGUIAPI void GuiPanel(Rectangle bounds); // Panel control, useful to group controls +RAYGUIAPI Rectangle GuiScrollPanel(Rectangle bounds, Rectangle content, Vector2 *scroll); // Scroll Panel control + +// Basic controls set +RAYGUIAPI void GuiLabel(Rectangle bounds, const char *text); // Label control, shows text +RAYGUIAPI bool GuiButton(Rectangle bounds, const char *text); // Button control, returns true when clicked +RAYGUIAPI bool GuiLabelButton(Rectangle bounds, const char *text); // Label button control, show true when clicked +RAYGUIAPI bool GuiToggle(Rectangle bounds, const char *text, bool active); // Toggle Button control, returns true when active +RAYGUIAPI int GuiToggleGroup(Rectangle bounds, const char *text, int active); // Toggle Group control, returns active toggle index +RAYGUIAPI bool GuiCheckBox(Rectangle bounds, const char *text, bool checked); // Check Box control, returns true when active +RAYGUIAPI int GuiComboBox(Rectangle bounds, const char *text, int active); // Combo Box control, returns selected item index +RAYGUIAPI bool GuiDropdownBox(Rectangle bounds, const char *text, int *active, bool editMode); // Dropdown Box control, returns selected item +RAYGUIAPI bool GuiSpinner(Rectangle bounds, const char *text, int *value, int minValue, int maxValue, bool editMode); // Spinner control, returns selected value +RAYGUIAPI bool GuiValueBox(Rectangle bounds, const char *text, int *value, int minValue, int maxValue, bool editMode); // Value Box control, updates input text with numbers +RAYGUIAPI bool GuiTextBox(Rectangle bounds, char *text, int textSize, bool editMode); // Text Box control, updates input text +RAYGUIAPI bool GuiTextBoxMulti(Rectangle bounds, char *text, int textSize, bool editMode); // Text Box control with multiple lines +RAYGUIAPI float GuiSlider(Rectangle bounds, const char *textLeft, const char *textRight, float value, float minValue, float maxValue); // Slider control, returns selected value +RAYGUIAPI float GuiSliderBar(Rectangle bounds, const char *textLeft, const char *textRight, float value, float minValue, float maxValue); // Slider Bar control, returns selected value +RAYGUIAPI float GuiProgressBar(Rectangle bounds, const char *textLeft, const char *textRight, float value, float minValue, float maxValue); // Progress Bar control, shows current progress value +RAYGUIAPI void GuiStatusBar(Rectangle bounds, const char *text); // Status Bar control, shows info text +RAYGUIAPI void GuiDummyRec(Rectangle bounds, const char *text); // Dummy control for placeholders +RAYGUIAPI int GuiScrollBar(Rectangle bounds, int value, int minValue, int maxValue); // Scroll Bar control +RAYGUIAPI Vector2 GuiGrid(Rectangle bounds, float spacing, int subdivs); // Grid control + + +// Advance controls set +RAYGUIAPI int GuiListView(Rectangle bounds, const char *text, int *scrollIndex, int active); // List View control, returns selected list item index +RAYGUIAPI int GuiListViewEx(Rectangle bounds, const char **text, int count, int *focus, int *scrollIndex, int active); // List View with extended parameters +RAYGUIAPI int GuiMessageBox(Rectangle bounds, const char *title, const char *message, const char *buttons); // Message Box control, displays a message +RAYGUIAPI int GuiTextInputBox(Rectangle bounds, const char *title, const char *message, const char *buttons, char *text); // Text Input Box control, ask for text +RAYGUIAPI Color GuiColorPicker(Rectangle bounds, Color color); // Color Picker control (multiple color controls) +RAYGUIAPI Color GuiColorPanel(Rectangle bounds, Color color); // Color Panel control +RAYGUIAPI float GuiColorBarAlpha(Rectangle bounds, float alpha); // Color Bar Alpha control +RAYGUIAPI float GuiColorBarHue(Rectangle bounds, float value); // Color Bar Hue control + +// Styles loading functions +RAYGUIAPI void GuiLoadStyle(const char *fileName); // Load style file over global style variable (.rgs) +RAYGUIAPI void GuiLoadStyleDefault(void); // Load style default over global style + +/* +typedef GuiStyle (unsigned int *) +RAYGUIAPI GuiStyle LoadGuiStyle(const char *fileName); // Load style from file (.rgs) +RAYGUIAPI void UnloadGuiStyle(GuiStyle style); // Unload style +*/ + +RAYGUIAPI const char *GuiIconText(int iconId, const char *text); // Get text with icon id prepended (if supported) + +#if !defined(RAYGUI_NO_RICONS) +// Gui icons functionality +RAYGUIAPI void GuiDrawIcon(int iconId, int posX, int posY, int pixelSize, Color color); + +RAYGUIAPI unsigned int *GuiGetIcons(void); // Get full icons data pointer +RAYGUIAPI unsigned int *GuiGetIconData(int iconId); // Get icon bit data +RAYGUIAPI void GuiSetIconData(int iconId, unsigned int *data); // Set icon bit data + +RAYGUIAPI void GuiSetIconPixel(int iconId, int x, int y); // Set icon pixel value +RAYGUIAPI void GuiClearIconPixel(int iconId, int x, int y); // Clear icon pixel value +RAYGUIAPI bool GuiCheckIconPixel(int iconId, int x, int y); // Check icon pixel value +#endif + +#if defined(__cplusplus) +} // Prevents name mangling of functions +#endif + +#endif // RAYGUI_H + +/*********************************************************************************** +* +* RAYGUI IMPLEMENTATION +* +************************************************************************************/ + +#if defined(RAYGUI_IMPLEMENTATION) + +#include // Required for: FILE, fopen(), fclose(), fprintf(), feof(), fscanf(), vsprintf() [GuiLoadStyle(), GuiLoadIcons()] +#include // Required for: malloc(), calloc(), free() [GuiLoadStyle(), GuiLoadIcons()] +#include // Required for: strlen() [GuiTextBox(), GuiTextBoxMulti(), GuiValueBox()], memset(), memcpy() +#include // Required for: va_list, va_start(), vfprintf(), va_end() [TextFormat()] +#include // Required for: roundf() [GuiColorPicker()] + +#ifdef __cplusplus + #define RAYGUI_CLITERAL(name) name +#else + #define RAYGUI_CLITERAL(name) (name) +#endif + +#if !defined(RAYGUI_NO_RICONS) + +#if defined(RAYGUI_CUSTOM_RICONS) + +#define RICONS_IMPLEMENTATION +#include "ricons.h" // External icons data provided, it can be generated with rGuiIcons tool + +#else // Embedded raygui icons, no external file provided + +#define RICON_SIZE 16 // Size of icons (squared) +#define RICON_MAX_ICONS 256 // Maximum number of icons +#define RICON_MAX_NAME_LENGTH 32 // Maximum length of icon name id + +// Icons data is defined by bit array (every bit represents one pixel) +// Those arrays are stored as unsigned int data arrays, so every array +// element defines 32 pixels (bits) of information +// Number of elemens depend on RICON_SIZE (by default 16x16 pixels) +#define RICON_DATA_ELEMENTS (RICON_SIZE*RICON_SIZE/32) + +//---------------------------------------------------------------------------------- +// Icons enumeration +//---------------------------------------------------------------------------------- +typedef enum { + RICON_NONE = 0, + RICON_FOLDER_FILE_OPEN = 1, + RICON_FILE_SAVE_CLASSIC = 2, + RICON_FOLDER_OPEN = 3, + RICON_FOLDER_SAVE = 4, + RICON_FILE_OPEN = 5, + RICON_FILE_SAVE = 6, + RICON_FILE_EXPORT = 7, + RICON_FILE_NEW = 8, + RICON_FILE_DELETE = 9, + RICON_FILETYPE_TEXT = 10, + RICON_FILETYPE_AUDIO = 11, + RICON_FILETYPE_IMAGE = 12, + RICON_FILETYPE_PLAY = 13, + RICON_FILETYPE_VIDEO = 14, + RICON_FILETYPE_INFO = 15, + RICON_FILE_COPY = 16, + RICON_FILE_CUT = 17, + RICON_FILE_PASTE = 18, + RICON_CURSOR_HAND = 19, + RICON_CURSOR_POINTER = 20, + RICON_CURSOR_CLASSIC = 21, + RICON_PENCIL = 22, + RICON_PENCIL_BIG = 23, + RICON_BRUSH_CLASSIC = 24, + RICON_BRUSH_PAINTER = 25, + RICON_WATER_DROP = 26, + RICON_COLOR_PICKER = 27, + RICON_RUBBER = 28, + RICON_COLOR_BUCKET = 29, + RICON_TEXT_T = 30, + RICON_TEXT_A = 31, + RICON_SCALE = 32, + RICON_RESIZE = 33, + RICON_FILTER_POINT = 34, + RICON_FILTER_BILINEAR = 35, + RICON_CROP = 36, + RICON_CROP_ALPHA = 37, + RICON_SQUARE_TOGGLE = 38, + RICON_SYMMETRY = 39, + RICON_SYMMETRY_HORIZONTAL = 40, + RICON_SYMMETRY_VERTICAL = 41, + RICON_LENS = 42, + RICON_LENS_BIG = 43, + RICON_EYE_ON = 44, + RICON_EYE_OFF = 45, + RICON_FILTER_TOP = 46, + RICON_FILTER = 47, + RICON_TARGET_POINT = 48, + RICON_TARGET_SMALL = 49, + RICON_TARGET_BIG = 50, + RICON_TARGET_MOVE = 51, + RICON_CURSOR_MOVE = 52, + RICON_CURSOR_SCALE = 53, + RICON_CURSOR_SCALE_RIGHT = 54, + RICON_CURSOR_SCALE_LEFT = 55, + RICON_UNDO = 56, + RICON_REDO = 57, + RICON_REREDO = 58, + RICON_MUTATE = 59, + RICON_ROTATE = 60, + RICON_REPEAT = 61, + RICON_SHUFFLE = 62, + RICON_EMPTYBOX = 63, + RICON_TARGET = 64, + RICON_TARGET_SMALL_FILL = 65, + RICON_TARGET_BIG_FILL = 66, + RICON_TARGET_MOVE_FILL = 67, + RICON_CURSOR_MOVE_FILL = 68, + RICON_CURSOR_SCALE_FILL = 69, + RICON_CURSOR_SCALE_RIGHT_FILL = 70, + RICON_CURSOR_SCALE_LEFT_FILL = 71, + RICON_UNDO_FILL = 72, + RICON_REDO_FILL = 73, + RICON_REREDO_FILL = 74, + RICON_MUTATE_FILL = 75, + RICON_ROTATE_FILL = 76, + RICON_REPEAT_FILL = 77, + RICON_SHUFFLE_FILL = 78, + RICON_EMPTYBOX_SMALL = 79, + RICON_BOX = 80, + RICON_BOX_TOP = 81, + RICON_BOX_TOP_RIGHT = 82, + RICON_BOX_RIGHT = 83, + RICON_BOX_BOTTOM_RIGHT = 84, + RICON_BOX_BOTTOM = 85, + RICON_BOX_BOTTOM_LEFT = 86, + RICON_BOX_LEFT = 87, + RICON_BOX_TOP_LEFT = 88, + RICON_BOX_CENTER = 89, + RICON_BOX_CIRCLE_MASK = 90, + RICON_POT = 91, + RICON_ALPHA_MULTIPLY = 92, + RICON_ALPHA_CLEAR = 93, + RICON_DITHERING = 94, + RICON_MIPMAPS = 95, + RICON_BOX_GRID = 96, + RICON_GRID = 97, + RICON_BOX_CORNERS_SMALL = 98, + RICON_BOX_CORNERS_BIG = 99, + RICON_FOUR_BOXES = 100, + RICON_GRID_FILL = 101, + RICON_BOX_MULTISIZE = 102, + RICON_ZOOM_SMALL = 103, + RICON_ZOOM_MEDIUM = 104, + RICON_ZOOM_BIG = 105, + RICON_ZOOM_ALL = 106, + RICON_ZOOM_CENTER = 107, + RICON_BOX_DOTS_SMALL = 108, + RICON_BOX_DOTS_BIG = 109, + RICON_BOX_CONCENTRIC = 110, + RICON_BOX_GRID_BIG = 111, + RICON_OK_TICK = 112, + RICON_CROSS = 113, + RICON_ARROW_LEFT = 114, + RICON_ARROW_RIGHT = 115, + RICON_ARROW_DOWN = 116, + RICON_ARROW_UP = 117, + RICON_ARROW_LEFT_FILL = 118, + RICON_ARROW_RIGHT_FILL = 119, + RICON_ARROW_DOWN_FILL = 120, + RICON_ARROW_UP_FILL = 121, + RICON_AUDIO = 122, + RICON_FX = 123, + RICON_WAVE = 124, + RICON_WAVE_SINUS = 125, + RICON_WAVE_SQUARE = 126, + RICON_WAVE_TRIANGULAR = 127, + RICON_CROSS_SMALL = 128, + RICON_PLAYER_PREVIOUS = 129, + RICON_PLAYER_PLAY_BACK = 130, + RICON_PLAYER_PLAY = 131, + RICON_PLAYER_PAUSE = 132, + RICON_PLAYER_STOP = 133, + RICON_PLAYER_NEXT = 134, + RICON_PLAYER_RECORD = 135, + RICON_MAGNET = 136, + RICON_LOCK_CLOSE = 137, + RICON_LOCK_OPEN = 138, + RICON_CLOCK = 139, + RICON_TOOLS = 140, + RICON_GEAR = 141, + RICON_GEAR_BIG = 142, + RICON_BIN = 143, + RICON_HAND_POINTER = 144, + RICON_LASER = 145, + RICON_COIN = 146, + RICON_EXPLOSION = 147, + RICON_1UP = 148, + RICON_PLAYER = 149, + RICON_PLAYER_JUMP = 150, + RICON_KEY = 151, + RICON_DEMON = 152, + RICON_TEXT_POPUP = 153, + RICON_GEAR_EX = 154, + RICON_CRACK = 155, + RICON_CRACK_POINTS = 156, + RICON_STAR = 157, + RICON_DOOR = 158, + RICON_EXIT = 159, + RICON_MODE_2D = 160, + RICON_MODE_3D = 161, + RICON_CUBE = 162, + RICON_CUBE_FACE_TOP = 163, + RICON_CUBE_FACE_LEFT = 164, + RICON_CUBE_FACE_FRONT = 165, + RICON_CUBE_FACE_BOTTOM = 166, + RICON_CUBE_FACE_RIGHT = 167, + RICON_CUBE_FACE_BACK = 168, + RICON_CAMERA = 169, + RICON_SPECIAL = 170, + RICON_LINK_NET = 171, + RICON_LINK_BOXES = 172, + RICON_LINK_MULTI = 173, + RICON_LINK = 174, + RICON_LINK_BROKE = 175, + RICON_TEXT_NOTES = 176, + RICON_NOTEBOOK = 177, + RICON_SUITCASE = 178, + RICON_SUITCASE_ZIP = 179, + RICON_MAILBOX = 180, + RICON_MONITOR = 181, + RICON_PRINTER = 182, + RICON_PHOTO_CAMERA = 183, + RICON_PHOTO_CAMERA_FLASH = 184, + RICON_HOUSE = 185, + RICON_HEART = 186, + RICON_CORNER = 187, + RICON_VERTICAL_BARS = 188, + RICON_VERTICAL_BARS_FILL = 189, + RICON_LIFE_BARS = 190, + RICON_INFO = 191, + RICON_CROSSLINE = 192, + RICON_HELP = 193, + RICON_FILETYPE_ALPHA = 194, + RICON_FILETYPE_HOME = 195, + RICON_LAYERS_VISIBLE = 196, + RICON_LAYERS = 197, + RICON_WINDOW = 198, + RICON_HIDPI = 199, + RICON_200 = 200, + RICON_201 = 201, + RICON_202 = 202, + RICON_203 = 203, + RICON_204 = 204, + RICON_205 = 205, + RICON_206 = 206, + RICON_207 = 207, + RICON_208 = 208, + RICON_209 = 209, + RICON_210 = 210, + RICON_211 = 211, + RICON_212 = 212, + RICON_213 = 213, + RICON_214 = 214, + RICON_215 = 215, + RICON_216 = 216, + RICON_217 = 217, + RICON_218 = 218, + RICON_219 = 219, + RICON_220 = 220, + RICON_221 = 221, + RICON_222 = 222, + RICON_223 = 223, + RICON_224 = 224, + RICON_225 = 225, + RICON_226 = 226, + RICON_227 = 227, + RICON_228 = 228, + RICON_229 = 229, + RICON_230 = 230, + RICON_231 = 231, + RICON_232 = 232, + RICON_233 = 233, + RICON_234 = 234, + RICON_235 = 235, + RICON_236 = 236, + RICON_237 = 237, + RICON_238 = 238, + RICON_239 = 239, + RICON_240 = 240, + RICON_241 = 241, + RICON_242 = 242, + RICON_243 = 243, + RICON_244 = 244, + RICON_245 = 245, + RICON_246 = 246, + RICON_247 = 247, + RICON_248 = 248, + RICON_249 = 249, + RICON_250 = 250, + RICON_251 = 251, + RICON_252 = 252, + RICON_253 = 253, + RICON_254 = 254, + RICON_255 = 255, +} guiIconName; + +//---------------------------------------------------------------------------------- +// Icons data for all gui possible icons (allocated on data segment by default) +// +// NOTE 1: Every icon is codified in binary form, using 1 bit per pixel, so, +// every 16x16 icon requires 8 integers (16*16/32) to be stored +// +// NOTE 2: A new icon set could be loaded over this array using GuiLoadIcons(), +// but loaded icons set must be same RICON_SIZE and no more than RICON_MAX_ICONS +// +// guiIcons size is by default: 256*(16*16/32) = 2048*4 = 8192 bytes = 8 KB +//---------------------------------------------------------------------------------- +static unsigned int guiIcons[RICON_MAX_ICONS*RICON_DATA_ELEMENTS] = { + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_NONE + 0x3ff80000, 0x2f082008, 0x2042207e, 0x40027fc2, 0x40024002, 0x40024002, 0x40024002, 0x00007ffe, // RICON_FOLDER_FILE_OPEN + 0x3ffe0000, 0x44226422, 0x400247e2, 0x5ffa4002, 0x57ea500a, 0x500a500a, 0x40025ffa, 0x00007ffe, // RICON_FILE_SAVE_CLASSIC + 0x00000000, 0x0042007e, 0x40027fc2, 0x40024002, 0x41024002, 0x44424282, 0x793e4102, 0x00000100, // RICON_FOLDER_OPEN + 0x00000000, 0x0042007e, 0x40027fc2, 0x40024002, 0x41024102, 0x44424102, 0x793e4282, 0x00000000, // RICON_FOLDER_SAVE + 0x3ff00000, 0x201c2010, 0x20042004, 0x21042004, 0x24442284, 0x21042104, 0x20042104, 0x00003ffc, // RICON_FILE_OPEN + 0x3ff00000, 0x201c2010, 0x20042004, 0x21042004, 0x21042104, 0x22842444, 0x20042104, 0x00003ffc, // RICON_FILE_SAVE + 0x3ff00000, 0x201c2010, 0x00042004, 0x20041004, 0x20844784, 0x00841384, 0x20042784, 0x00003ffc, // RICON_FILE_EXPORT + 0x3ff00000, 0x201c2010, 0x20042004, 0x20042004, 0x22042204, 0x22042f84, 0x20042204, 0x00003ffc, // RICON_FILE_NEW + 0x3ff00000, 0x201c2010, 0x20042004, 0x20042004, 0x25042884, 0x25042204, 0x20042884, 0x00003ffc, // RICON_FILE_DELETE + 0x3ff00000, 0x201c2010, 0x20042004, 0x20042ff4, 0x20042ff4, 0x20042ff4, 0x20042004, 0x00003ffc, // RICON_FILETYPE_TEXT + 0x3ff00000, 0x201c2010, 0x27042004, 0x244424c4, 0x26442444, 0x20642664, 0x20042004, 0x00003ffc, // RICON_FILETYPE_AUDIO + 0x3ff00000, 0x201c2010, 0x26042604, 0x20042004, 0x35442884, 0x2414222c, 0x20042004, 0x00003ffc, // RICON_FILETYPE_IMAGE + 0x3ff00000, 0x201c2010, 0x20c42004, 0x22442144, 0x22442444, 0x20c42144, 0x20042004, 0x00003ffc, // RICON_FILETYPE_PLAY + 0x3ff00000, 0x3ffc2ff0, 0x3f3c2ff4, 0x3dbc2eb4, 0x3dbc2bb4, 0x3f3c2eb4, 0x3ffc2ff4, 0x00002ff4, // RICON_FILETYPE_VIDEO + 0x3ff00000, 0x201c2010, 0x21842184, 0x21842004, 0x21842184, 0x21842184, 0x20042184, 0x00003ffc, // RICON_FILETYPE_INFO + 0x0ff00000, 0x381c0810, 0x28042804, 0x28042804, 0x28042804, 0x28042804, 0x20102ffc, 0x00003ff0, // RICON_FILE_COPY + 0x00000000, 0x701c0000, 0x079c1e14, 0x55a000f0, 0x079c00f0, 0x701c1e14, 0x00000000, 0x00000000, // RICON_FILE_CUT + 0x01c00000, 0x13e41bec, 0x3f841004, 0x204420c4, 0x20442044, 0x20442044, 0x207c2044, 0x00003fc0, // RICON_FILE_PASTE + 0x00000000, 0x3aa00fe0, 0x2abc2aa0, 0x2aa42aa4, 0x20042aa4, 0x20042004, 0x3ffc2004, 0x00000000, // RICON_CURSOR_HAND + 0x00000000, 0x003c000c, 0x030800c8, 0x30100c10, 0x10202020, 0x04400840, 0x01800280, 0x00000000, // RICON_CURSOR_POINTER + 0x00000000, 0x00180000, 0x01f00078, 0x03e007f0, 0x07c003e0, 0x04000e40, 0x00000000, 0x00000000, // RICON_CURSOR_CLASSIC + 0x00000000, 0x04000000, 0x11000a00, 0x04400a80, 0x01100220, 0x00580088, 0x00000038, 0x00000000, // RICON_PENCIL + 0x04000000, 0x15000a00, 0x50402880, 0x14102820, 0x05040a08, 0x015c028c, 0x007c00bc, 0x00000000, // RICON_PENCIL_BIG + 0x01c00000, 0x01400140, 0x01400140, 0x0ff80140, 0x0ff80808, 0x0aa80808, 0x0aa80aa8, 0x00000ff8, // RICON_BRUSH_CLASSIC + 0x1ffc0000, 0x5ffc7ffe, 0x40004000, 0x00807f80, 0x01c001c0, 0x01c001c0, 0x01c001c0, 0x00000080, // RICON_BRUSH_PAINTER + 0x00000000, 0x00800000, 0x01c00080, 0x03e001c0, 0x07f003e0, 0x036006f0, 0x000001c0, 0x00000000, // RICON_WATER_DROP + 0x00000000, 0x3e003800, 0x1f803f80, 0x0c201e40, 0x02080c10, 0x00840104, 0x00380044, 0x00000000, // RICON_COLOR_PICKER + 0x00000000, 0x07800300, 0x1fe00fc0, 0x3f883fd0, 0x0e021f04, 0x02040402, 0x00f00108, 0x00000000, // RICON_RUBBER + 0x00c00000, 0x02800140, 0x08200440, 0x20081010, 0x2ffe3004, 0x03f807fc, 0x00e001f0, 0x00000040, // RICON_COLOR_BUCKET + 0x00000000, 0x21843ffc, 0x01800180, 0x01800180, 0x01800180, 0x01800180, 0x03c00180, 0x00000000, // RICON_TEXT_T + 0x00800000, 0x01400180, 0x06200340, 0x0c100620, 0x1ff80c10, 0x380c1808, 0x70067004, 0x0000f80f, // RICON_TEXT_A + 0x78000000, 0x50004000, 0x00004800, 0x03c003c0, 0x03c003c0, 0x00100000, 0x0002000a, 0x0000000e, // RICON_SCALE + 0x75560000, 0x5e004002, 0x54001002, 0x41001202, 0x408200fe, 0x40820082, 0x40820082, 0x00006afe, // RICON_RESIZE + 0x00000000, 0x3f003f00, 0x3f003f00, 0x3f003f00, 0x00400080, 0x001c0020, 0x001c001c, 0x00000000, // RICON_FILTER_POINT + 0x6d800000, 0x00004080, 0x40804080, 0x40800000, 0x00406d80, 0x001c0020, 0x001c001c, 0x00000000, // RICON_FILTER_BILINEAR + 0x40080000, 0x1ffe2008, 0x14081008, 0x11081208, 0x10481088, 0x10081028, 0x10047ff8, 0x00001002, // RICON_CROP + 0x00100000, 0x3ffc0010, 0x2ab03550, 0x22b02550, 0x20b02150, 0x20302050, 0x2000fff0, 0x00002000, // RICON_CROP_ALPHA + 0x40000000, 0x1ff82000, 0x04082808, 0x01082208, 0x00482088, 0x00182028, 0x35542008, 0x00000002, // RICON_SQUARE_TOGGLE + 0x00000000, 0x02800280, 0x06c006c0, 0x0ea00ee0, 0x1e901eb0, 0x3e883e98, 0x7efc7e8c, 0x00000000, // RICON_SIMMETRY + 0x01000000, 0x05600100, 0x1d480d50, 0x7d423d44, 0x3d447d42, 0x0d501d48, 0x01000560, 0x00000100, // RICON_SIMMETRY_HORIZONTAL + 0x01800000, 0x04200240, 0x10080810, 0x00001ff8, 0x00007ffe, 0x0ff01ff8, 0x03c007e0, 0x00000180, // RICON_SIMMETRY_VERTICAL + 0x00000000, 0x010800f0, 0x02040204, 0x02040204, 0x07f00308, 0x1c000e00, 0x30003800, 0x00000000, // RICON_LENS + 0x00000000, 0x061803f0, 0x08240c0c, 0x08040814, 0x0c0c0804, 0x23f01618, 0x18002400, 0x00000000, // RICON_LENS_BIG + 0x00000000, 0x00000000, 0x1c7007c0, 0x638e3398, 0x1c703398, 0x000007c0, 0x00000000, 0x00000000, // RICON_EYE_ON + 0x00000000, 0x10002000, 0x04700fc0, 0x610e3218, 0x1c703098, 0x001007a0, 0x00000008, 0x00000000, // RICON_EYE_OFF + 0x00000000, 0x00007ffc, 0x40047ffc, 0x10102008, 0x04400820, 0x02800280, 0x02800280, 0x00000100, // RICON_FILTER_TOP + 0x00000000, 0x40027ffe, 0x10082004, 0x04200810, 0x02400240, 0x02400240, 0x01400240, 0x000000c0, // RICON_FILTER + 0x00800000, 0x00800080, 0x00000080, 0x3c9e0000, 0x00000000, 0x00800080, 0x00800080, 0x00000000, // RICON_TARGET_POINT + 0x00800000, 0x00800080, 0x00800080, 0x3f7e01c0, 0x008001c0, 0x00800080, 0x00800080, 0x00000000, // RICON_TARGET_SMALL + 0x00800000, 0x00800080, 0x03e00080, 0x3e3e0220, 0x03e00220, 0x00800080, 0x00800080, 0x00000000, // RICON_TARGET_BIG + 0x01000000, 0x04400280, 0x01000100, 0x43842008, 0x43849ab2, 0x01002008, 0x04400100, 0x01000280, // RICON_TARGET_MOVE + 0x01000000, 0x04400280, 0x01000100, 0x41042108, 0x41049ff2, 0x01002108, 0x04400100, 0x01000280, // RICON_CURSOR_MOVE + 0x781e0000, 0x500a4002, 0x04204812, 0x00000240, 0x02400000, 0x48120420, 0x4002500a, 0x0000781e, // RICON_CURSOR_SCALE + 0x00000000, 0x20003c00, 0x24002800, 0x01000200, 0x00400080, 0x00140024, 0x003c0004, 0x00000000, // RICON_CURSOR_SCALE_RIGHT + 0x00000000, 0x0004003c, 0x00240014, 0x00800040, 0x02000100, 0x28002400, 0x3c002000, 0x00000000, // RICON_CURSOR_SCALE_LEFT + 0x00000000, 0x00100020, 0x10101fc8, 0x10001020, 0x10001000, 0x10001000, 0x00001fc0, 0x00000000, // RICON_UNDO + 0x00000000, 0x08000400, 0x080813f8, 0x00080408, 0x00080008, 0x00080008, 0x000003f8, 0x00000000, // RICON_REDO + 0x00000000, 0x3ffc0000, 0x20042004, 0x20002000, 0x20402000, 0x3f902020, 0x00400020, 0x00000000, // RICON_REREDO + 0x00000000, 0x3ffc0000, 0x20042004, 0x27fc2004, 0x20202000, 0x3fc82010, 0x00200010, 0x00000000, // RICON_MUTATE + 0x00000000, 0x0ff00000, 0x10081818, 0x11801008, 0x10001180, 0x18101020, 0x00100fc8, 0x00000020, // RICON_ROTATE + 0x00000000, 0x04000200, 0x240429fc, 0x20042204, 0x20442004, 0x3f942024, 0x00400020, 0x00000000, // RICON_REPEAT + 0x00000000, 0x20001000, 0x22104c0e, 0x00801120, 0x11200040, 0x4c0e2210, 0x10002000, 0x00000000, // RICON_SHUFFLE + 0x7ffe0000, 0x50024002, 0x44024802, 0x41024202, 0x40424082, 0x40124022, 0x4002400a, 0x00007ffe, // RICON_EMPTYBOX + 0x00800000, 0x03e00080, 0x08080490, 0x3c9e0808, 0x08080808, 0x03e00490, 0x00800080, 0x00000000, // RICON_TARGET + 0x00800000, 0x00800080, 0x00800080, 0x3ffe01c0, 0x008001c0, 0x00800080, 0x00800080, 0x00000000, // RICON_TARGET_SMALL_FILL + 0x00800000, 0x00800080, 0x03e00080, 0x3ffe03e0, 0x03e003e0, 0x00800080, 0x00800080, 0x00000000, // RICON_TARGET_BIG_FILL + 0x01000000, 0x07c00380, 0x01000100, 0x638c2008, 0x638cfbbe, 0x01002008, 0x07c00100, 0x01000380, // RICON_TARGET_MOVE_FILL + 0x01000000, 0x07c00380, 0x01000100, 0x610c2108, 0x610cfffe, 0x01002108, 0x07c00100, 0x01000380, // RICON_CURSOR_MOVE_FILL + 0x781e0000, 0x6006700e, 0x04204812, 0x00000240, 0x02400000, 0x48120420, 0x700e6006, 0x0000781e, // RICON_CURSOR_SCALE_FILL + 0x00000000, 0x38003c00, 0x24003000, 0x01000200, 0x00400080, 0x000c0024, 0x003c001c, 0x00000000, // RICON_CURSOR_SCALE_RIGHT + 0x00000000, 0x001c003c, 0x0024000c, 0x00800040, 0x02000100, 0x30002400, 0x3c003800, 0x00000000, // RICON_CURSOR_SCALE_LEFT + 0x00000000, 0x00300020, 0x10301ff8, 0x10001020, 0x10001000, 0x10001000, 0x00001fc0, 0x00000000, // RICON_UNDO_FILL + 0x00000000, 0x0c000400, 0x0c081ff8, 0x00080408, 0x00080008, 0x00080008, 0x000003f8, 0x00000000, // RICON_REDO_FILL + 0x00000000, 0x3ffc0000, 0x20042004, 0x20002000, 0x20402000, 0x3ff02060, 0x00400060, 0x00000000, // RICON_REREDO_FILL + 0x00000000, 0x3ffc0000, 0x20042004, 0x27fc2004, 0x20202000, 0x3ff82030, 0x00200030, 0x00000000, // RICON_MUTATE_FILL + 0x00000000, 0x0ff00000, 0x10081818, 0x11801008, 0x10001180, 0x18301020, 0x00300ff8, 0x00000020, // RICON_ROTATE_FILL + 0x00000000, 0x06000200, 0x26042ffc, 0x20042204, 0x20442004, 0x3ff42064, 0x00400060, 0x00000000, // RICON_REPEAT_FILL + 0x00000000, 0x30001000, 0x32107c0e, 0x00801120, 0x11200040, 0x7c0e3210, 0x10003000, 0x00000000, // RICON_SHUFFLE_FILL + 0x00000000, 0x30043ffc, 0x24042804, 0x21042204, 0x20442084, 0x20142024, 0x3ffc200c, 0x00000000, // RICON_EMPTYBOX_SMALL + 0x00000000, 0x20043ffc, 0x20042004, 0x20042004, 0x20042004, 0x20042004, 0x3ffc2004, 0x00000000, // RICON_BOX + 0x00000000, 0x23c43ffc, 0x23c423c4, 0x200423c4, 0x20042004, 0x20042004, 0x3ffc2004, 0x00000000, // RICON_BOX_TOP + 0x00000000, 0x3e043ffc, 0x3e043e04, 0x20043e04, 0x20042004, 0x20042004, 0x3ffc2004, 0x00000000, // RICON_BOX_TOP_RIGHT + 0x00000000, 0x20043ffc, 0x20042004, 0x3e043e04, 0x3e043e04, 0x20042004, 0x3ffc2004, 0x00000000, // RICON_BOX_RIGHT + 0x00000000, 0x20043ffc, 0x20042004, 0x20042004, 0x3e042004, 0x3e043e04, 0x3ffc3e04, 0x00000000, // RICON_BOX_BOTTOM_RIGHT + 0x00000000, 0x20043ffc, 0x20042004, 0x20042004, 0x23c42004, 0x23c423c4, 0x3ffc23c4, 0x00000000, // RICON_BOX_BOTTOM + 0x00000000, 0x20043ffc, 0x20042004, 0x20042004, 0x207c2004, 0x207c207c, 0x3ffc207c, 0x00000000, // RICON_BOX_BOTTOM_LEFT + 0x00000000, 0x20043ffc, 0x20042004, 0x207c207c, 0x207c207c, 0x20042004, 0x3ffc2004, 0x00000000, // RICON_BOX_LEFT + 0x00000000, 0x207c3ffc, 0x207c207c, 0x2004207c, 0x20042004, 0x20042004, 0x3ffc2004, 0x00000000, // RICON_BOX_TOP_LEFT + 0x00000000, 0x20043ffc, 0x20042004, 0x23c423c4, 0x23c423c4, 0x20042004, 0x3ffc2004, 0x00000000, // RICON_BOX_CIRCLE_MASK + 0x7ffe0000, 0x40024002, 0x47e24182, 0x4ff247e2, 0x47e24ff2, 0x418247e2, 0x40024002, 0x00007ffe, // RICON_BOX_CENTER + 0x7fff0000, 0x40014001, 0x40014001, 0x49555ddd, 0x4945495d, 0x400149c5, 0x40014001, 0x00007fff, // RICON_POT + 0x7ffe0000, 0x53327332, 0x44ce4cce, 0x41324332, 0x404e40ce, 0x48125432, 0x4006540e, 0x00007ffe, // RICON_ALPHA_MULTIPLY + 0x7ffe0000, 0x53327332, 0x44ce4cce, 0x41324332, 0x5c4e40ce, 0x44124432, 0x40065c0e, 0x00007ffe, // RICON_ALPHA_CLEAR + 0x7ffe0000, 0x42fe417e, 0x42fe417e, 0x42fe417e, 0x42fe417e, 0x42fe417e, 0x42fe417e, 0x00007ffe, // RICON_DITHERING + 0x07fe0000, 0x1ffa0002, 0x7fea000a, 0x402a402a, 0x5b2a512a, 0x5128552a, 0x40205128, 0x00007fe0, // RICON_MIPMAPS + 0x00000000, 0x1ff80000, 0x12481248, 0x12481ff8, 0x1ff81248, 0x12481248, 0x00001ff8, 0x00000000, // RICON_BOX_GRID + 0x12480000, 0x7ffe1248, 0x12481248, 0x12487ffe, 0x7ffe1248, 0x12481248, 0x12487ffe, 0x00001248, // RICON_GRID + 0x00000000, 0x1c380000, 0x1c3817e8, 0x08100810, 0x08100810, 0x17e81c38, 0x00001c38, 0x00000000, // RICON_BOX_CORNERS_SMALL + 0x700e0000, 0x700e5ffa, 0x20042004, 0x20042004, 0x20042004, 0x20042004, 0x5ffa700e, 0x0000700e, // RICON_BOX_CORNERS_BIG + 0x3f7e0000, 0x21422142, 0x21422142, 0x00003f7e, 0x21423f7e, 0x21422142, 0x3f7e2142, 0x00000000, // RICON_FOUR_BOXES + 0x00000000, 0x3bb80000, 0x3bb83bb8, 0x3bb80000, 0x3bb83bb8, 0x3bb80000, 0x3bb83bb8, 0x00000000, // RICON_GRID_FILL + 0x7ffe0000, 0x7ffe7ffe, 0x77fe7000, 0x77fe77fe, 0x777e7700, 0x777e777e, 0x777e777e, 0x0000777e, // RICON_BOX_MULTISIZE + 0x781e0000, 0x40024002, 0x00004002, 0x01800000, 0x00000180, 0x40020000, 0x40024002, 0x0000781e, // RICON_ZOOM_SMALL + 0x781e0000, 0x40024002, 0x00004002, 0x03c003c0, 0x03c003c0, 0x40020000, 0x40024002, 0x0000781e, // RICON_ZOOM_MEDIUM + 0x781e0000, 0x40024002, 0x07e04002, 0x07e007e0, 0x07e007e0, 0x400207e0, 0x40024002, 0x0000781e, // RICON_ZOOM_BIG + 0x781e0000, 0x5ffa4002, 0x1ff85ffa, 0x1ff81ff8, 0x1ff81ff8, 0x5ffa1ff8, 0x40025ffa, 0x0000781e, // RICON_ZOOM_ALL + 0x00000000, 0x2004381c, 0x00002004, 0x00000000, 0x00000000, 0x20040000, 0x381c2004, 0x00000000, // RICON_ZOOM_CENTER + 0x00000000, 0x1db80000, 0x10081008, 0x10080000, 0x00001008, 0x10081008, 0x00001db8, 0x00000000, // RICON_BOX_DOTS_SMALL + 0x35560000, 0x00002002, 0x00002002, 0x00002002, 0x00002002, 0x00002002, 0x35562002, 0x00000000, // RICON_BOX_DOTS_BIG + 0x7ffe0000, 0x40024002, 0x48124ff2, 0x49924812, 0x48124992, 0x4ff24812, 0x40024002, 0x00007ffe, // RICON_BOX_CONCENTRIC + 0x00000000, 0x10841ffc, 0x10841084, 0x1ffc1084, 0x10841084, 0x10841084, 0x00001ffc, 0x00000000, // RICON_BOX_GRID_BIG + 0x00000000, 0x00000000, 0x10000000, 0x04000800, 0x01040200, 0x00500088, 0x00000020, 0x00000000, // RICON_OK_TICK + 0x00000000, 0x10080000, 0x04200810, 0x01800240, 0x02400180, 0x08100420, 0x00001008, 0x00000000, // RICON_CROSS + 0x00000000, 0x02000000, 0x00800100, 0x00200040, 0x00200010, 0x00800040, 0x02000100, 0x00000000, // RICON_ARROW_LEFT + 0x00000000, 0x00400000, 0x01000080, 0x04000200, 0x04000800, 0x01000200, 0x00400080, 0x00000000, // RICON_ARROW_RIGHT + 0x00000000, 0x00000000, 0x00000000, 0x08081004, 0x02200410, 0x00800140, 0x00000000, 0x00000000, // RICON_ARROW_DOWN + 0x00000000, 0x00000000, 0x01400080, 0x04100220, 0x10040808, 0x00000000, 0x00000000, 0x00000000, // RICON_ARROW_UP + 0x00000000, 0x02000000, 0x03800300, 0x03e003c0, 0x03e003f0, 0x038003c0, 0x02000300, 0x00000000, // RICON_ARROW_LEFT_FILL + 0x00000000, 0x00400000, 0x01c000c0, 0x07c003c0, 0x07c00fc0, 0x01c003c0, 0x004000c0, 0x00000000, // RICON_ARROW_RIGHT_FILL + 0x00000000, 0x00000000, 0x00000000, 0x0ff81ffc, 0x03e007f0, 0x008001c0, 0x00000000, 0x00000000, // RICON_ARROW_DOWN_FILL + 0x00000000, 0x00000000, 0x01c00080, 0x07f003e0, 0x1ffc0ff8, 0x00000000, 0x00000000, 0x00000000, // RICON_ARROW_UP_FILL + 0x00000000, 0x18a008c0, 0x32881290, 0x24822686, 0x26862482, 0x12903288, 0x08c018a0, 0x00000000, // RICON_AUDIO + 0x00000000, 0x04800780, 0x004000c0, 0x662000f0, 0x08103c30, 0x130a0e18, 0x0000318e, 0x00000000, // RICON_FX + 0x00000000, 0x00800000, 0x08880888, 0x2aaa0a8a, 0x0a8a2aaa, 0x08880888, 0x00000080, 0x00000000, // RICON_WAVE + 0x00000000, 0x00600000, 0x01080090, 0x02040108, 0x42044204, 0x24022402, 0x00001800, 0x00000000, // RICON_WAVE_SINUS + 0x00000000, 0x07f80000, 0x04080408, 0x04080408, 0x04080408, 0x7c0e0408, 0x00000000, 0x00000000, // RICON_WAVE_SQUARE + 0x00000000, 0x00000000, 0x00a00040, 0x22084110, 0x08021404, 0x00000000, 0x00000000, 0x00000000, // RICON_WAVE_TRIANGULAR + 0x00000000, 0x00000000, 0x04200000, 0x01800240, 0x02400180, 0x00000420, 0x00000000, 0x00000000, // RICON_CROSS_SMALL + 0x00000000, 0x18380000, 0x12281428, 0x10a81128, 0x112810a8, 0x14281228, 0x00001838, 0x00000000, // RICON_PLAYER_PREVIOUS + 0x00000000, 0x18000000, 0x11801600, 0x10181060, 0x10601018, 0x16001180, 0x00001800, 0x00000000, // RICON_PLAYER_PLAY_BACK + 0x00000000, 0x00180000, 0x01880068, 0x18080608, 0x06081808, 0x00680188, 0x00000018, 0x00000000, // RICON_PLAYER_PLAY + 0x00000000, 0x1e780000, 0x12481248, 0x12481248, 0x12481248, 0x12481248, 0x00001e78, 0x00000000, // RICON_PLAYER_PAUSE + 0x00000000, 0x1ff80000, 0x10081008, 0x10081008, 0x10081008, 0x10081008, 0x00001ff8, 0x00000000, // RICON_PLAYER_STOP + 0x00000000, 0x1c180000, 0x14481428, 0x15081488, 0x14881508, 0x14281448, 0x00001c18, 0x00000000, // RICON_PLAYER_NEXT + 0x00000000, 0x03c00000, 0x08100420, 0x10081008, 0x10081008, 0x04200810, 0x000003c0, 0x00000000, // RICON_PLAYER_RECORD + 0x00000000, 0x0c3007e0, 0x13c81818, 0x14281668, 0x14281428, 0x1c381c38, 0x08102244, 0x00000000, // RICON_MAGNET + 0x07c00000, 0x08200820, 0x3ff80820, 0x23882008, 0x21082388, 0x20082108, 0x1ff02008, 0x00000000, // RICON_LOCK_CLOSE + 0x07c00000, 0x08000800, 0x3ff80800, 0x23882008, 0x21082388, 0x20082108, 0x1ff02008, 0x00000000, // RICON_LOCK_OPEN + 0x01c00000, 0x0c180770, 0x3086188c, 0x60832082, 0x60034781, 0x30062002, 0x0c18180c, 0x01c00770, // RICON_CLOCK + 0x0a200000, 0x1b201b20, 0x04200e20, 0x04200420, 0x04700420, 0x0e700e70, 0x0e700e70, 0x04200e70, // RICON_TOOLS + 0x01800000, 0x3bdc318c, 0x0ff01ff8, 0x7c3e1e78, 0x1e787c3e, 0x1ff80ff0, 0x318c3bdc, 0x00000180, // RICON_GEAR + 0x01800000, 0x3ffc318c, 0x1c381ff8, 0x781e1818, 0x1818781e, 0x1ff81c38, 0x318c3ffc, 0x00000180, // RICON_GEAR_BIG + 0x00000000, 0x08080ff8, 0x08081ffc, 0x0aa80aa8, 0x0aa80aa8, 0x0aa80aa8, 0x08080aa8, 0x00000ff8, // RICON_BIN + 0x00000000, 0x00000000, 0x20043ffc, 0x08043f84, 0x04040f84, 0x04040784, 0x000007fc, 0x00000000, // RICON_HAND_POINTER + 0x00000000, 0x24400400, 0x00001480, 0x6efe0e00, 0x00000e00, 0x24401480, 0x00000400, 0x00000000, // RICON_LASER + 0x00000000, 0x03c00000, 0x08300460, 0x11181118, 0x11181118, 0x04600830, 0x000003c0, 0x00000000, // RICON_COIN + 0x00000000, 0x10880080, 0x06c00810, 0x366c07e0, 0x07e00240, 0x00001768, 0x04200240, 0x00000000, // RICON_EXPLOSION + 0x00000000, 0x3d280000, 0x2528252c, 0x3d282528, 0x05280528, 0x05e80528, 0x00000000, 0x00000000, // RICON_1UP + 0x01800000, 0x03c003c0, 0x018003c0, 0x0ff007e0, 0x0bd00bd0, 0x0a500bd0, 0x02400240, 0x02400240, // RICON_PLAYER + 0x01800000, 0x03c003c0, 0x118013c0, 0x03c81ff8, 0x07c003c8, 0x04400440, 0x0c080478, 0x00000000, // RICON_PLAYER_JUMP + 0x3ff80000, 0x30183ff8, 0x30183018, 0x3ff83ff8, 0x03000300, 0x03c003c0, 0x03e00300, 0x000003e0, // RICON_KEY + 0x3ff80000, 0x3ff83ff8, 0x33983ff8, 0x3ff83398, 0x3ff83ff8, 0x00000540, 0x0fe00aa0, 0x00000fe0, // RICON_DEMON + 0x00000000, 0x0ff00000, 0x20041008, 0x25442004, 0x10082004, 0x06000bf0, 0x00000300, 0x00000000, // RICON_TEXT_POPUP + 0x00000000, 0x11440000, 0x07f00be8, 0x1c1c0e38, 0x1c1c0c18, 0x07f00e38, 0x11440be8, 0x00000000, // RICON_GEAR_EX + 0x00000000, 0x20080000, 0x0c601010, 0x07c00fe0, 0x07c007c0, 0x0c600fe0, 0x20081010, 0x00000000, // RICON_CRACK + 0x00000000, 0x20080000, 0x0c601010, 0x04400fe0, 0x04405554, 0x0c600fe0, 0x20081010, 0x00000000, // RICON_CRACK_POINTS + 0x00000000, 0x00800080, 0x01c001c0, 0x1ffc3ffe, 0x03e007f0, 0x07f003e0, 0x0c180770, 0x00000808, // RICON_STAR + 0x0ff00000, 0x08180810, 0x08100818, 0x0a100810, 0x08180810, 0x08100818, 0x08100810, 0x00001ff8, // RICON_DOOR + 0x0ff00000, 0x08100810, 0x08100810, 0x10100010, 0x4f902010, 0x10102010, 0x08100010, 0x00000ff0, // RICON_EXIT + 0x00040000, 0x001f000e, 0x0ef40004, 0x12f41284, 0x0ef41214, 0x10040004, 0x7ffc3004, 0x10003000, // RICON_MODE_2D + 0x78040000, 0x501f600e, 0x0ef44004, 0x12f41284, 0x0ef41284, 0x10140004, 0x7ffc300c, 0x10003000, // RICON_MODE_3D + 0x7fe00000, 0x50286030, 0x47fe4804, 0x44224402, 0x44224422, 0x241275e2, 0x0c06140a, 0x000007fe, // RICON_CUBE + 0x7fe00000, 0x5ff87ff0, 0x47fe4ffc, 0x44224402, 0x44224422, 0x241275e2, 0x0c06140a, 0x000007fe, // RICON_CUBE_FACE_TOP + 0x7fe00000, 0x50386030, 0x47fe483c, 0x443e443e, 0x443e443e, 0x241e75fe, 0x0c06140e, 0x000007fe, // RICON_CUBE_FACE_LEFT + 0x7fe00000, 0x50286030, 0x47fe4804, 0x47fe47fe, 0x47fe47fe, 0x27fe77fe, 0x0ffe17fe, 0x000007fe, // RICON_CUBE_FACE_FRONT + 0x7fe00000, 0x50286030, 0x47fe4804, 0x44224402, 0x44224422, 0x3ff27fe2, 0x0ffe1ffa, 0x000007fe, // RICON_CUBE_FACE_BOTTOM + 0x7fe00000, 0x70286030, 0x7ffe7804, 0x7c227c02, 0x7c227c22, 0x3c127de2, 0x0c061c0a, 0x000007fe, // RICON_CUBE_FACE_RIGHT + 0x7fe00000, 0x7fe87ff0, 0x7ffe7fe4, 0x7fe27fe2, 0x7fe27fe2, 0x24127fe2, 0x0c06140a, 0x000007fe, // RICON_CUBE_FACE_BACK + 0x00000000, 0x2a0233fe, 0x22022602, 0x22022202, 0x2a022602, 0x00a033fe, 0x02080110, 0x00000000, // RICON_CAMERA + 0x00000000, 0x200c3ffc, 0x000c000c, 0x3ffc000c, 0x30003000, 0x30003000, 0x3ffc3004, 0x00000000, // RICON_SPECIAL + 0x00000000, 0x0022003e, 0x012201e2, 0x0100013e, 0x01000100, 0x79000100, 0x4f004900, 0x00007800, // RICON_LINK_NET + 0x00000000, 0x44007c00, 0x45004600, 0x00627cbe, 0x00620022, 0x45007cbe, 0x44004600, 0x00007c00, // RICON_LINK_BOXES + 0x00000000, 0x0044007c, 0x0010007c, 0x3f100010, 0x3f1021f0, 0x3f100010, 0x3f0021f0, 0x00000000, // RICON_LINK_MULTI + 0x00000000, 0x0044007c, 0x00440044, 0x0010007c, 0x00100010, 0x44107c10, 0x440047f0, 0x00007c00, // RICON_LINK + 0x00000000, 0x0044007c, 0x00440044, 0x0000007c, 0x00000010, 0x44007c10, 0x44004550, 0x00007c00, // RICON_LINK_BROKE + 0x02a00000, 0x22a43ffc, 0x20042004, 0x20042ff4, 0x20042ff4, 0x20042ff4, 0x20042004, 0x00003ffc, // RICON_TEXT_NOTES + 0x3ffc0000, 0x20042004, 0x245e27c4, 0x27c42444, 0x2004201e, 0x201e2004, 0x20042004, 0x00003ffc, // RICON_NOTEBOOK + 0x00000000, 0x07e00000, 0x04200420, 0x24243ffc, 0x24242424, 0x24242424, 0x3ffc2424, 0x00000000, // RICON_SUITCASE + 0x00000000, 0x0fe00000, 0x08200820, 0x40047ffc, 0x7ffc5554, 0x40045554, 0x7ffc4004, 0x00000000, // RICON_SUITCASE_ZIP + 0x00000000, 0x20043ffc, 0x3ffc2004, 0x13c81008, 0x100813c8, 0x10081008, 0x1ff81008, 0x00000000, // RICON_MAILBOX + 0x00000000, 0x40027ffe, 0x5ffa5ffa, 0x5ffa5ffa, 0x40025ffa, 0x03c07ffe, 0x1ff81ff8, 0x00000000, // RICON_MONITOR + 0x0ff00000, 0x6bfe7ffe, 0x7ffe7ffe, 0x68167ffe, 0x08106816, 0x08100810, 0x0ff00810, 0x00000000, // RICON_PRINTER + 0x3ff80000, 0xfffe2008, 0x870a8002, 0x904a888a, 0x904a904a, 0x870a888a, 0xfffe8002, 0x00000000, // RICON_PHOTO_CAMERA + 0x0fc00000, 0xfcfe0cd8, 0x8002fffe, 0x84428382, 0x84428442, 0x80028382, 0xfffe8002, 0x00000000, // RICON_PHOTO_CAMERA_FLASH + 0x00000000, 0x02400180, 0x08100420, 0x20041008, 0x23c42004, 0x22442244, 0x3ffc2244, 0x00000000, // RICON_HOUSE + 0x00000000, 0x1c700000, 0x3ff83ef8, 0x3ff83ff8, 0x0fe01ff0, 0x038007c0, 0x00000100, 0x00000000, // RICON_HEART + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x80000000, 0xe000c000, // RICON_CORNER + 0x00000000, 0x14001c00, 0x15c01400, 0x15401540, 0x155c1540, 0x15541554, 0x1ddc1554, 0x00000000, // RICON_VERTICAL_BARS + 0x00000000, 0x03000300, 0x1b001b00, 0x1b601b60, 0x1b6c1b60, 0x1b6c1b6c, 0x1b6c1b6c, 0x00000000, // RICON_VERTICAL_BARS_FILL + 0x00000000, 0x00000000, 0x403e7ffe, 0x7ffe403e, 0x7ffe0000, 0x43fe43fe, 0x00007ffe, 0x00000000, // RICON_LIFE_BARS + 0x7ffc0000, 0x43844004, 0x43844284, 0x43844004, 0x42844284, 0x42844284, 0x40044384, 0x00007ffc, // RICON_INFO + 0x40008000, 0x10002000, 0x04000800, 0x01000200, 0x00400080, 0x00100020, 0x00040008, 0x00010002, // RICON_CROSSLINE + 0x00000000, 0x1ff01ff0, 0x18301830, 0x1f001830, 0x03001f00, 0x00000300, 0x03000300, 0x00000000, // RICON_HELP + 0x3ff00000, 0x2abc3550, 0x2aac3554, 0x2aac3554, 0x2aac3554, 0x2aac3554, 0x2aac3554, 0x00003ffc, // RICON_FILETYPE_ALPHA + 0x3ff00000, 0x201c2010, 0x22442184, 0x28142424, 0x29942814, 0x2ff42994, 0x20042004, 0x00003ffc, // RICON_FILETYPE_HOME + 0x07fe0000, 0x04020402, 0x7fe20402, 0x44224422, 0x44224422, 0x402047fe, 0x40204020, 0x00007fe0, // RICON_LAYERS_VISIBLE + 0x07fe0000, 0x04020402, 0x7c020402, 0x44024402, 0x44024402, 0x402047fe, 0x40204020, 0x00007fe0, // RICON_LAYERS + 0x00000000, 0x40027ffe, 0x7ffe4002, 0x40024002, 0x40024002, 0x40024002, 0x7ffe4002, 0x00000000, // RICON_WINDOW + 0x09100000, 0x09f00910, 0x09100910, 0x00000910, 0x24a2779e, 0x27a224a2, 0x709e20a2, 0x00000000, // RICON_HIDPI + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_200 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_201 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_202 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_203 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_204 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_205 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_206 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_207 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_208 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_209 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_210 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_211 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_212 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_213 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_214 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_215 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_216 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_217 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_218 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_219 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_220 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_221 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_222 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_223 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_224 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_225 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_226 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_227 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_228 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_229 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_230 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_231 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_232 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_233 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_234 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_235 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_236 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_237 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_238 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_239 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_240 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_241 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_242 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_243 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_244 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_245 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_246 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_247 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_248 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_249 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_250 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_251 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_252 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_253 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_254 + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // RICON_255 +}; + +#endif // RAYGUI_CUSTOM_RICONS + +#endif // !RAYGUI_NO_RICONS + +#ifndef RICON_SIZE + #define RICON_SIZE 0 +#endif + +#define RAYGUI_MAX_CONTROLS 16 // Maximum number of standard controls +#define RAYGUI_MAX_PROPS_BASE 16 // Maximum number of standard properties +#define RAYGUI_MAX_PROPS_EXTENDED 8 // Maximum number of extended properties + +//---------------------------------------------------------------------------------- +// Types and Structures Definition +//---------------------------------------------------------------------------------- +// Gui control property style color element +typedef enum { BORDER = 0, BASE, TEXT, OTHER } GuiPropertyElement; + +//---------------------------------------------------------------------------------- +// Global Variables Definition +//---------------------------------------------------------------------------------- +static GuiControlState guiState = GUI_STATE_NORMAL; + +static Font guiFont = { 0 }; // Gui current font (WARNING: highly coupled to raylib) +static bool guiLocked = false; // Gui lock state (no inputs processed) +static float guiAlpha = 1.0f; // Gui element transpacency on drawing + +//---------------------------------------------------------------------------------- +// Style data array for all gui style properties (allocated on data segment by default) +// +// NOTE 1: First set of BASE properties are generic to all controls but could be individually +// overwritten per control, first set of EXTENDED properties are generic to all controls and +// can not be overwritten individually but custom EXTENDED properties can be used by control +// +// NOTE 2: A new style set could be loaded over this array using GuiLoadStyle(), +// but default gui style could always be recovered with GuiLoadStyleDefault() +// +// guiStyle size is by default: 16*(16 + 8) = 384*4 = 1536 bytes = 1.5 KB +//---------------------------------------------------------------------------------- +static unsigned int guiStyle[RAYGUI_MAX_CONTROLS*(RAYGUI_MAX_PROPS_BASE + RAYGUI_MAX_PROPS_EXTENDED)] = { 0 }; + +static bool guiStyleLoaded = false; // Style loaded flag for lazy style initialization + +//---------------------------------------------------------------------------------- +// Standalone Mode Functions Declaration +// +// NOTE: raygui depend on some raylib input and drawing functions +// To use raygui as standalone library, below functions must be defined by the user +//---------------------------------------------------------------------------------- +#if defined(RAYGUI_STANDALONE) + +#define KEY_RIGHT 262 +#define KEY_LEFT 263 +#define KEY_DOWN 264 +#define KEY_UP 265 +#define KEY_BACKSPACE 259 +#define KEY_ENTER 257 + +#define MOUSE_LEFT_BUTTON 0 + +// Input required functions +//------------------------------------------------------------------------------- +static Vector2 GetMousePosition(void); +static float GetMouseWheelMove(void); +static bool IsMouseButtonDown(int button); +static bool IsMouseButtonPressed(int button); +static bool IsMouseButtonReleased(int button); + +static bool IsKeyDown(int key); +static bool IsKeyPressed(int key); +static int GetCharPressed(void); // -- GuiTextBox(), GuiTextBoxMulti(), GuiValueBox() +//------------------------------------------------------------------------------- + +// Drawing required functions +//------------------------------------------------------------------------------- +static void DrawRectangle(int x, int y, int width, int height, Color color); // -- GuiDrawRectangle(), GuiDrawIcon() + +static void DrawRectangleGradientEx(Rectangle rec, Color col1, Color col2, Color col3, Color col4); // -- GuiColorPicker() +//------------------------------------------------------------------------------- + +// Text required functions +//------------------------------------------------------------------------------- +static Font LoadFontEx(const char *fileName, int fontSize, int *fontChars, int glyphCount); // -- GuiLoadStyle() +static Font GetFontDefault(void); // -- GuiLoadStyleDefault() +static Texture2D LoadTextureFromImage(Image image); // -- GuiLoadStyle() +static void SetShapesTexture(Texture2D tex, Rectangle rec); // -- GuiLoadStyle() +static char *LoadFileText(const char *fileName); // -- GuiLoadStyle() +static const char *GetDirectoryPath(const char *filePath); // -- GuiLoadStyle() + +static Vector2 MeasureTextEx(Font font, const char *text, float fontSize, float spacing); // -- GetTextWidth(), GuiTextBoxMulti() +static void DrawTextEx(Font font, const char *text, Vector2 position, float fontSize, float spacing, Color tint); // -- GuiDrawText() +//------------------------------------------------------------------------------- + +// raylib functions already implemented in raygui +//------------------------------------------------------------------------------- +static Color GetColor(int hexValue); // Returns a Color struct from hexadecimal value +static int ColorToInt(Color color); // Returns hexadecimal value for a Color +static Color Fade(Color color, float alpha); // Color fade-in or fade-out, alpha goes from 0.0f to 1.0f +static bool CheckCollisionPointRec(Vector2 point, Rectangle rec); // Check if point is inside rectangle +static const char *TextFormat(const char *text, ...); // Formatting of text with variables to 'embed' +static const char **TextSplit(const char *text, char delimiter, int *count); // Split text into multiple strings +static int TextToInteger(const char *text); // Get integer value from text +static int GetCodepoint(const char *text, int *bytesProcessed); // Get next codepoint in a UTF-8 encoded text +static const char *CodepointToUTF8(int codepoint, int *byteSize); // Encode codepoint into UTF-8 text (char array size returned as parameter) + +static void DrawRectangleGradientV(int posX, int posY, int width, int height, Color color1, Color color2); // Draw rectangle vertical gradient +//------------------------------------------------------------------------------- + +#endif // RAYGUI_STANDALONE + +//---------------------------------------------------------------------------------- +// Module specific Functions Declaration +//---------------------------------------------------------------------------------- +static int GetTextWidth(const char *text); // Gui get text width using default font +static Rectangle GetTextBounds(int control, Rectangle bounds); // Get text bounds considering control bounds +static const char *GetTextIcon(const char *text, int *iconId); // Get text icon if provided and move text cursor + +static void GuiDrawText(const char *text, Rectangle bounds, int alignment, Color tint); // Gui draw text using default font +static void GuiDrawRectangle(Rectangle rec, int borderWidth, Color borderColor, Color color); // Gui draw rectangle using default raygui style + +static const char **GuiTextSplit(const char *text, int *count, int *textRow); // Split controls text into multiple strings +static Vector3 ConvertHSVtoRGB(Vector3 hsv); // Convert color data from HSV to RGB +static Vector3 ConvertRGBtoHSV(Vector3 rgb); // Convert color data from RGB to HSV + +//---------------------------------------------------------------------------------- +// Gui Setup Functions Definition +//---------------------------------------------------------------------------------- +// Enable gui global state +void GuiEnable(void) { guiState = GUI_STATE_NORMAL; } + +// Disable gui global state +void GuiDisable(void) { guiState = GUI_STATE_DISABLED; } + +// Lock gui global state +void GuiLock(void) { guiLocked = true; } + +// Unlock gui global state +void GuiUnlock(void) { guiLocked = false; } + +// Check if gui is locked (global state) +bool GuiIsLocked(void) { return guiLocked; } + +// Set gui controls alpha global state +void GuiFade(float alpha) +{ + if (alpha < 0.0f) alpha = 0.0f; + else if (alpha > 1.0f) alpha = 1.0f; + + guiAlpha = alpha; +} + +// Set gui state (global state) +void GuiSetState(int state) { guiState = (GuiControlState)state; } + +// Get gui state (global state) +int GuiGetState(void) { return guiState; } + +// Set custom gui font +// NOTE: Font loading/unloading is external to raygui +void GuiSetFont(Font font) +{ + if (font.texture.id > 0) + { + // NOTE: If we try to setup a font but default style has not been + // lazily loaded before, it will be overwritten, so we need to force + // default style loading first + if (!guiStyleLoaded) GuiLoadStyleDefault(); + + guiFont = font; + GuiSetStyle(DEFAULT, TEXT_SIZE, font.baseSize); + } +} + +// Get custom gui font +Font GuiGetFont(void) +{ + return guiFont; +} + +// Set control style property value +void GuiSetStyle(int control, int property, int value) +{ + if (!guiStyleLoaded) GuiLoadStyleDefault(); + guiStyle[control*(RAYGUI_MAX_PROPS_BASE + RAYGUI_MAX_PROPS_EXTENDED) + property] = value; + + // Default properties are propagated to all controls + if ((control == 0) && (property < RAYGUI_MAX_PROPS_BASE)) + { + for (int i = 1; i < RAYGUI_MAX_CONTROLS; i++) guiStyle[i*(RAYGUI_MAX_PROPS_BASE + RAYGUI_MAX_PROPS_EXTENDED) + property] = value; + } +} + +// Get control style property value +int GuiGetStyle(int control, int property) +{ + if (!guiStyleLoaded) GuiLoadStyleDefault(); + return guiStyle[control*(RAYGUI_MAX_PROPS_BASE + RAYGUI_MAX_PROPS_EXTENDED) + property]; +} + +//---------------------------------------------------------------------------------- +// Gui Controls Functions Definition +//---------------------------------------------------------------------------------- + +// Window Box control +bool GuiWindowBox(Rectangle bounds, const char *title) +{ + // NOTE: This define is also used by GuiMessageBox() and GuiTextInputBox() + #define WINDOW_STATUSBAR_HEIGHT 22 + + //GuiControlState state = guiState; + bool clicked = false; + + int statusBarHeight = WINDOW_STATUSBAR_HEIGHT + 2*GuiGetStyle(STATUSBAR, BORDER_WIDTH); + statusBarHeight += (statusBarHeight%2); + + Rectangle statusBar = { bounds.x, bounds.y, bounds.width, (float)statusBarHeight }; + if (bounds.height < statusBarHeight*2.0f) bounds.height = statusBarHeight*2.0f; + + Rectangle windowPanel = { bounds.x, bounds.y + (float)statusBarHeight - 1, bounds.width, bounds.height - (float)statusBarHeight }; + Rectangle closeButtonRec = { statusBar.x + statusBar.width - GuiGetStyle(STATUSBAR, BORDER_WIDTH) - 20, + statusBar.y + statusBarHeight/2.0f - 18.0f/2.0f, 18, 18 }; + + // Update control + //-------------------------------------------------------------------- + // NOTE: Logic is directly managed by button + //-------------------------------------------------------------------- + + // Draw control + //-------------------------------------------------------------------- + GuiStatusBar(statusBar, title); // Draw window header as status bar + GuiPanel(windowPanel); // Draw window base + + // Draw window close button + int tempBorderWidth = GuiGetStyle(BUTTON, BORDER_WIDTH); + int tempTextAlignment = GuiGetStyle(BUTTON, TEXT_ALIGNMENT); + GuiSetStyle(BUTTON, BORDER_WIDTH, 1); + GuiSetStyle(BUTTON, TEXT_ALIGNMENT, GUI_TEXT_ALIGN_CENTER); +#if defined(RAYGUI_NO_RICONS) + clicked = GuiButton(closeButtonRec, "x"); +#else + clicked = GuiButton(closeButtonRec, GuiIconText(RICON_CROSS_SMALL, NULL)); +#endif + GuiSetStyle(BUTTON, BORDER_WIDTH, tempBorderWidth); + GuiSetStyle(BUTTON, TEXT_ALIGNMENT, tempTextAlignment); + //-------------------------------------------------------------------- + + return clicked; +} + +// Group Box control with text name +void GuiGroupBox(Rectangle bounds, const char *text) +{ + #define GROUPBOX_LINE_THICK 1 + #define GROUPBOX_TEXT_PADDING 10 + + GuiControlState state = guiState; + + // Draw control + //-------------------------------------------------------------------- + GuiDrawRectangle(RAYGUI_CLITERAL(Rectangle){ bounds.x, bounds.y, GROUPBOX_LINE_THICK, bounds.height }, 0, BLANK, Fade(GetColor(GuiGetStyle(DEFAULT, (state == GUI_STATE_DISABLED)? BORDER_COLOR_DISABLED : LINE_COLOR)), guiAlpha)); + GuiDrawRectangle(RAYGUI_CLITERAL(Rectangle){ bounds.x, bounds.y + bounds.height - 1, bounds.width, GROUPBOX_LINE_THICK }, 0, BLANK, Fade(GetColor(GuiGetStyle(DEFAULT, (state == GUI_STATE_DISABLED)? BORDER_COLOR_DISABLED : LINE_COLOR)), guiAlpha)); + GuiDrawRectangle(RAYGUI_CLITERAL(Rectangle){ bounds.x + bounds.width - 1, bounds.y, GROUPBOX_LINE_THICK, bounds.height }, 0, BLANK, Fade(GetColor(GuiGetStyle(DEFAULT, (state == GUI_STATE_DISABLED)? BORDER_COLOR_DISABLED : LINE_COLOR)), guiAlpha)); + + GuiLine(RAYGUI_CLITERAL(Rectangle){ bounds.x, bounds.y, bounds.width, 1 }, text); + //-------------------------------------------------------------------- +} + +// Line control +void GuiLine(Rectangle bounds, const char *text) +{ + #define LINE_TEXT_PADDING 10 + + GuiControlState state = guiState; + + Color color = Fade(GetColor(GuiGetStyle(DEFAULT, (state == GUI_STATE_DISABLED)? BORDER_COLOR_DISABLED : LINE_COLOR)), guiAlpha); + + // Draw control + //-------------------------------------------------------------------- + if (text == NULL) GuiDrawRectangle(RAYGUI_CLITERAL(Rectangle){ bounds.x, bounds.y + bounds.height/2, bounds.width, 1 }, 0, BLANK, color); + else + { + Rectangle textBounds = { 0 }; + textBounds.width = (float)GetTextWidth(text); + textBounds.height = (float)GuiGetStyle(DEFAULT, TEXT_SIZE); + textBounds.x = bounds.x + LINE_TEXT_PADDING; + textBounds.y = bounds.y - (float)GuiGetStyle(DEFAULT, TEXT_SIZE)/2; + + // Draw line with embedded text label: "--- text --------------" + GuiDrawRectangle(RAYGUI_CLITERAL(Rectangle){ bounds.x, bounds.y, LINE_TEXT_PADDING - 2, 1 }, 0, BLANK, color); + GuiLabel(textBounds, text); + GuiDrawRectangle(RAYGUI_CLITERAL(Rectangle){ bounds.x + LINE_TEXT_PADDING + textBounds.width + 4, bounds.y, bounds.width - textBounds.width - LINE_TEXT_PADDING - 4, 1 }, 0, BLANK, color); + } + //-------------------------------------------------------------------- +} + +// Panel control +void GuiPanel(Rectangle bounds) +{ + #define PANEL_BORDER_WIDTH 1 + + GuiControlState state = guiState; + + // Draw control + //-------------------------------------------------------------------- + GuiDrawRectangle(bounds, PANEL_BORDER_WIDTH, Fade(GetColor(GuiGetStyle(DEFAULT, (state == GUI_STATE_DISABLED)? BORDER_COLOR_DISABLED: LINE_COLOR)), guiAlpha), + Fade(GetColor(GuiGetStyle(DEFAULT, (state == GUI_STATE_DISABLED)? BASE_COLOR_DISABLED : BACKGROUND_COLOR)), guiAlpha)); + //-------------------------------------------------------------------- +} + +// Scroll Panel control +Rectangle GuiScrollPanel(Rectangle bounds, Rectangle content, Vector2 *scroll) +{ + GuiControlState state = guiState; + + Vector2 scrollPos = { 0.0f, 0.0f }; + if (scroll != NULL) scrollPos = *scroll; + + bool hasHorizontalScrollBar = (content.width > bounds.width - 2*GuiGetStyle(DEFAULT, BORDER_WIDTH))? true : false; + bool hasVerticalScrollBar = (content.height > bounds.height - 2*GuiGetStyle(DEFAULT, BORDER_WIDTH))? true : false; + + // Recheck to account for the other scrollbar being visible + if (!hasHorizontalScrollBar) hasHorizontalScrollBar = (hasVerticalScrollBar && (content.width > (bounds.width - 2*GuiGetStyle(DEFAULT, BORDER_WIDTH) - GuiGetStyle(LISTVIEW, SCROLLBAR_WIDTH))))? true : false; + if (!hasVerticalScrollBar) hasVerticalScrollBar = (hasHorizontalScrollBar && (content.height > (bounds.height - 2*GuiGetStyle(DEFAULT, BORDER_WIDTH) - GuiGetStyle(LISTVIEW, SCROLLBAR_WIDTH))))? true : false; + + const int horizontalScrollBarWidth = hasHorizontalScrollBar? GuiGetStyle(LISTVIEW, SCROLLBAR_WIDTH) : 0; + const int verticalScrollBarWidth = hasVerticalScrollBar? GuiGetStyle(LISTVIEW, SCROLLBAR_WIDTH) : 0; + const Rectangle horizontalScrollBar = { (float)((GuiGetStyle(LISTVIEW, SCROLLBAR_SIDE) == SCROLLBAR_LEFT_SIDE)? (float)bounds.x + verticalScrollBarWidth : (float)bounds.x) + GuiGetStyle(DEFAULT, BORDER_WIDTH), (float)bounds.y + bounds.height - horizontalScrollBarWidth - GuiGetStyle(DEFAULT, BORDER_WIDTH), (float)bounds.width - verticalScrollBarWidth - 2*GuiGetStyle(DEFAULT, BORDER_WIDTH), (float)horizontalScrollBarWidth }; + const Rectangle verticalScrollBar = { (float)((GuiGetStyle(LISTVIEW, SCROLLBAR_SIDE) == SCROLLBAR_LEFT_SIDE)? (float)bounds.x + GuiGetStyle(DEFAULT, BORDER_WIDTH) : (float)bounds.x + bounds.width - verticalScrollBarWidth - GuiGetStyle(DEFAULT, BORDER_WIDTH)), (float)bounds.y + GuiGetStyle(DEFAULT, BORDER_WIDTH), (float)verticalScrollBarWidth, (float)bounds.height - horizontalScrollBarWidth - 2*GuiGetStyle(DEFAULT, BORDER_WIDTH) }; + + // Calculate view area (area without the scrollbars) + Rectangle view = (GuiGetStyle(LISTVIEW, SCROLLBAR_SIDE) == SCROLLBAR_LEFT_SIDE)? + RAYGUI_CLITERAL(Rectangle){ bounds.x + verticalScrollBarWidth + GuiGetStyle(DEFAULT, BORDER_WIDTH), bounds.y + GuiGetStyle(DEFAULT, BORDER_WIDTH), bounds.width - 2*GuiGetStyle(DEFAULT, BORDER_WIDTH) - verticalScrollBarWidth, bounds.height - 2*GuiGetStyle(DEFAULT, BORDER_WIDTH) - horizontalScrollBarWidth } : + RAYGUI_CLITERAL(Rectangle){ bounds.x + GuiGetStyle(DEFAULT, BORDER_WIDTH), bounds.y + GuiGetStyle(DEFAULT, BORDER_WIDTH), bounds.width - 2*GuiGetStyle(DEFAULT, BORDER_WIDTH) - verticalScrollBarWidth, bounds.height - 2*GuiGetStyle(DEFAULT, BORDER_WIDTH) - horizontalScrollBarWidth }; + + // Clip view area to the actual content size + if (view.width > content.width) view.width = content.width; + if (view.height > content.height) view.height = content.height; + + const float horizontalMin = hasHorizontalScrollBar? ((GuiGetStyle(LISTVIEW, SCROLLBAR_SIDE) == SCROLLBAR_LEFT_SIDE)? (float)-verticalScrollBarWidth : 0) - (float)GuiGetStyle(DEFAULT, BORDER_WIDTH) : (((float)GuiGetStyle(LISTVIEW, SCROLLBAR_SIDE) == SCROLLBAR_LEFT_SIDE)? (float)-verticalScrollBarWidth : 0) - (float)GuiGetStyle(DEFAULT, BORDER_WIDTH); + const float horizontalMax = hasHorizontalScrollBar? content.width - bounds.width + (float)verticalScrollBarWidth + GuiGetStyle(DEFAULT, BORDER_WIDTH) - (((float)GuiGetStyle(LISTVIEW, SCROLLBAR_SIDE) == SCROLLBAR_LEFT_SIDE)? (float)verticalScrollBarWidth : 0) : (float)-GuiGetStyle(DEFAULT, BORDER_WIDTH); + const float verticalMin = hasVerticalScrollBar? (float)-GuiGetStyle(DEFAULT, BORDER_WIDTH) : (float)-GuiGetStyle(DEFAULT, BORDER_WIDTH); + const float verticalMax = hasVerticalScrollBar? content.height - bounds.height + (float)horizontalScrollBarWidth + (float)GuiGetStyle(DEFAULT, BORDER_WIDTH) : (float)-GuiGetStyle(DEFAULT, BORDER_WIDTH); + + // Update control + //-------------------------------------------------------------------- + if ((state != GUI_STATE_DISABLED) && !guiLocked) + { + Vector2 mousePoint = GetMousePosition(); + + // Check button state + if (CheckCollisionPointRec(mousePoint, bounds)) + { + if (IsMouseButtonDown(MOUSE_LEFT_BUTTON)) state = GUI_STATE_PRESSED; + else state = GUI_STATE_FOCUSED; + + if (hasHorizontalScrollBar) + { + if (IsKeyDown(KEY_RIGHT)) scrollPos.x -= GuiGetStyle(SCROLLBAR, SCROLL_SPEED); + if (IsKeyDown(KEY_LEFT)) scrollPos.x += GuiGetStyle(SCROLLBAR, SCROLL_SPEED); + } + + if (hasVerticalScrollBar) + { + if (IsKeyDown(KEY_DOWN)) scrollPos.y -= GuiGetStyle(SCROLLBAR, SCROLL_SPEED); + if (IsKeyDown(KEY_UP)) scrollPos.y += GuiGetStyle(SCROLLBAR, SCROLL_SPEED); + } + + float wheelMove = GetMouseWheelMove(); + + // Horizontal scroll (Shift + Mouse wheel) + if (hasHorizontalScrollBar && (IsKeyDown(KEY_LEFT_SHIFT) || IsKeyDown(KEY_RIGHT_SHIFT))) scrollPos.x += wheelMove*20; + else scrollPos.y += wheelMove*20; // Vertical scroll + } + } + + // Normalize scroll values + if (scrollPos.x > -horizontalMin) scrollPos.x = -horizontalMin; + if (scrollPos.x < -horizontalMax) scrollPos.x = -horizontalMax; + if (scrollPos.y > -verticalMin) scrollPos.y = -verticalMin; + if (scrollPos.y < -verticalMax) scrollPos.y = -verticalMax; + //-------------------------------------------------------------------- + + // Draw control + //-------------------------------------------------------------------- + GuiDrawRectangle(bounds, 0, BLANK, GetColor(GuiGetStyle(DEFAULT, BACKGROUND_COLOR))); // Draw background + + // Save size of the scrollbar slider + const int slider = GuiGetStyle(SCROLLBAR, SCROLL_SLIDER_SIZE); + + // Draw horizontal scrollbar if visible + if (hasHorizontalScrollBar) + { + // Change scrollbar slider size to show the diff in size between the content width and the widget width + GuiSetStyle(SCROLLBAR, SCROLL_SLIDER_SIZE, (int)(((bounds.width - 2*GuiGetStyle(DEFAULT, BORDER_WIDTH) - verticalScrollBarWidth)/(int)content.width)*((int)bounds.width - 2*GuiGetStyle(DEFAULT, BORDER_WIDTH) - verticalScrollBarWidth))); + scrollPos.x = (float)-GuiScrollBar(horizontalScrollBar, (int)-scrollPos.x, (int)horizontalMin, (int)horizontalMax); + } + + // Draw vertical scrollbar if visible + if (hasVerticalScrollBar) + { + // Change scrollbar slider size to show the diff in size between the content height and the widget height + GuiSetStyle(SCROLLBAR, SCROLL_SLIDER_SIZE, (int)(((bounds.height - 2*GuiGetStyle(DEFAULT, BORDER_WIDTH) - horizontalScrollBarWidth)/(int)content.height)*((int)bounds.height - 2*GuiGetStyle(DEFAULT, BORDER_WIDTH) - horizontalScrollBarWidth))); + scrollPos.y = (float)-GuiScrollBar(verticalScrollBar, (int)-scrollPos.y, (int)verticalMin, (int)verticalMax); + } + + // Draw detail corner rectangle if both scroll bars are visible + if (hasHorizontalScrollBar && hasVerticalScrollBar) + { + Rectangle corner = { (GuiGetStyle(LISTVIEW, SCROLLBAR_SIDE) == SCROLLBAR_LEFT_SIDE) ? (bounds.x + GuiGetStyle(DEFAULT, BORDER_WIDTH) + 2) : (horizontalScrollBar.x + horizontalScrollBar.width + 2), verticalScrollBar.y + verticalScrollBar.height + 2, (float)horizontalScrollBarWidth - 4, (float)verticalScrollBarWidth - 4 }; + GuiDrawRectangle(corner, 0, BLANK, Fade(GetColor(GuiGetStyle(LISTVIEW, TEXT + (state*3))), guiAlpha)); + } + + // Draw scrollbar lines depending on current state + GuiDrawRectangle(bounds, GuiGetStyle(DEFAULT, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(LISTVIEW, BORDER + (state*3))), guiAlpha), BLANK); + + // Set scrollbar slider size back to the way it was before + GuiSetStyle(SCROLLBAR, SCROLL_SLIDER_SIZE, slider); + //-------------------------------------------------------------------- + + if (scroll != NULL) *scroll = scrollPos; + + return view; +} + +// Label control +void GuiLabel(Rectangle bounds, const char *text) +{ + GuiControlState state = guiState; + + // Update control + //-------------------------------------------------------------------- + // ... + //-------------------------------------------------------------------- + + // Draw control + //-------------------------------------------------------------------- + GuiDrawText(text, GetTextBounds(LABEL, bounds), GuiGetStyle(LABEL, TEXT_ALIGNMENT), Fade(GetColor(GuiGetStyle(LABEL, (state == GUI_STATE_DISABLED)? TEXT_COLOR_DISABLED : TEXT_COLOR_NORMAL)), guiAlpha)); + //-------------------------------------------------------------------- +} + +// Button control, returns true when clicked +bool GuiButton(Rectangle bounds, const char *text) +{ + GuiControlState state = guiState; + bool pressed = false; + + // Update control + //-------------------------------------------------------------------- + if ((state != GUI_STATE_DISABLED) && !guiLocked) + { + Vector2 mousePoint = GetMousePosition(); + + // Check button state + if (CheckCollisionPointRec(mousePoint, bounds)) + { + if (IsMouseButtonDown(MOUSE_LEFT_BUTTON)) state = GUI_STATE_PRESSED; + else state = GUI_STATE_FOCUSED; + + if (IsMouseButtonReleased(MOUSE_LEFT_BUTTON)) pressed = true; + } + } + //-------------------------------------------------------------------- + + // Draw control + //-------------------------------------------------------------------- + GuiDrawRectangle(bounds, GuiGetStyle(BUTTON, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(BUTTON, BORDER + (state*3))), guiAlpha), Fade(GetColor(GuiGetStyle(BUTTON, BASE + (state*3))), guiAlpha)); + GuiDrawText(text, GetTextBounds(BUTTON, bounds), GuiGetStyle(BUTTON, TEXT_ALIGNMENT), Fade(GetColor(GuiGetStyle(BUTTON, TEXT + (state*3))), guiAlpha)); + //------------------------------------------------------------------ + + return pressed; +} + +// Label button control +bool GuiLabelButton(Rectangle bounds, const char *text) +{ + GuiControlState state = guiState; + bool pressed = false; + + // NOTE: We force bounds.width to be all text + float textWidth = MeasureTextEx(guiFont, text, (float)GuiGetStyle(DEFAULT, TEXT_SIZE), (float)GuiGetStyle(DEFAULT, TEXT_SPACING)).x; + if (bounds.width < textWidth) bounds.width = textWidth; + + // Update control + //-------------------------------------------------------------------- + if ((state != GUI_STATE_DISABLED) && !guiLocked) + { + Vector2 mousePoint = GetMousePosition(); + + // Check checkbox state + if (CheckCollisionPointRec(mousePoint, bounds)) + { + if (IsMouseButtonDown(MOUSE_LEFT_BUTTON)) state = GUI_STATE_PRESSED; + else state = GUI_STATE_FOCUSED; + + if (IsMouseButtonReleased(MOUSE_LEFT_BUTTON)) pressed = true; + } + } + //-------------------------------------------------------------------- + + // Draw control + //-------------------------------------------------------------------- + GuiDrawText(text, GetTextBounds(LABEL, bounds), GuiGetStyle(LABEL, TEXT_ALIGNMENT), Fade(GetColor(GuiGetStyle(LABEL, TEXT + (state*3))), guiAlpha)); + //-------------------------------------------------------------------- + + return pressed; +} + +// Toggle Button control, returns true when active +bool GuiToggle(Rectangle bounds, const char *text, bool active) +{ + GuiControlState state = guiState; + + // Update control + //-------------------------------------------------------------------- + if ((state != GUI_STATE_DISABLED) && !guiLocked) + { + Vector2 mousePoint = GetMousePosition(); + + // Check toggle button state + if (CheckCollisionPointRec(mousePoint, bounds)) + { + if (IsMouseButtonDown(MOUSE_LEFT_BUTTON)) state = GUI_STATE_PRESSED; + else if (IsMouseButtonReleased(MOUSE_LEFT_BUTTON)) + { + state = GUI_STATE_NORMAL; + active = !active; + } + else state = GUI_STATE_FOCUSED; + } + } + //-------------------------------------------------------------------- + + // Draw control + //-------------------------------------------------------------------- + if (state == GUI_STATE_NORMAL) + { + GuiDrawRectangle(bounds, GuiGetStyle(TOGGLE, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(TOGGLE, (active? BORDER_COLOR_PRESSED : (BORDER + state*3)))), guiAlpha), Fade(GetColor(GuiGetStyle(TOGGLE, (active? BASE_COLOR_PRESSED : (BASE + state*3)))), guiAlpha)); + GuiDrawText(text, GetTextBounds(TOGGLE, bounds), GuiGetStyle(TOGGLE, TEXT_ALIGNMENT), Fade(GetColor(GuiGetStyle(TOGGLE, (active? TEXT_COLOR_PRESSED : (TEXT + state*3)))), guiAlpha)); + } + else + { + GuiDrawRectangle(bounds, GuiGetStyle(TOGGLE, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(TOGGLE, BORDER + state*3)), guiAlpha), Fade(GetColor(GuiGetStyle(TOGGLE, BASE + state*3)), guiAlpha)); + GuiDrawText(text, GetTextBounds(TOGGLE, bounds), GuiGetStyle(TOGGLE, TEXT_ALIGNMENT), Fade(GetColor(GuiGetStyle(TOGGLE, TEXT + state*3)), guiAlpha)); + } + //-------------------------------------------------------------------- + + return active; +} + +// Toggle Group control, returns toggled button index +int GuiToggleGroup(Rectangle bounds, const char *text, int active) +{ + #if !defined(TOGGLEGROUP_MAX_ELEMENTS) + #define TOGGLEGROUP_MAX_ELEMENTS 32 + #endif + + float initBoundsX = bounds.x; + + // Get substrings items from text (items pointers) + int rows[TOGGLEGROUP_MAX_ELEMENTS] = { 0 }; + int itemCount = 0; + const char **items = GuiTextSplit(text, &itemCount, rows); + + int prevRow = rows[0]; + + for (int i = 0; i < itemCount; i++) + { + if (prevRow != rows[i]) + { + bounds.x = initBoundsX; + bounds.y += (bounds.height + GuiGetStyle(TOGGLE, GROUP_PADDING)); + prevRow = rows[i]; + } + + if (i == active) GuiToggle(bounds, items[i], true); + else if (GuiToggle(bounds, items[i], false) == true) active = i; + + bounds.x += (bounds.width + GuiGetStyle(TOGGLE, GROUP_PADDING)); + } + + return active; +} + +// Check Box control, returns true when active +bool GuiCheckBox(Rectangle bounds, const char *text, bool checked) +{ + GuiControlState state = guiState; + + Rectangle textBounds = { 0 }; + + if (text != NULL) + { + textBounds.width = (float)GetTextWidth(text); + textBounds.height = (float)GuiGetStyle(DEFAULT, TEXT_SIZE); + textBounds.x = bounds.x + bounds.width + GuiGetStyle(CHECKBOX, TEXT_PADDING); + textBounds.y = bounds.y + bounds.height/2 - GuiGetStyle(DEFAULT, TEXT_SIZE)/2; + if (GuiGetStyle(CHECKBOX, TEXT_ALIGNMENT) == GUI_TEXT_ALIGN_LEFT) textBounds.x = bounds.x - textBounds.width - GuiGetStyle(CHECKBOX, TEXT_PADDING); + } + + // Update control + //-------------------------------------------------------------------- + if ((state != GUI_STATE_DISABLED) && !guiLocked) + { + Vector2 mousePoint = GetMousePosition(); + + Rectangle totalBounds = { + (GuiGetStyle(CHECKBOX, TEXT_ALIGNMENT) == GUI_TEXT_ALIGN_LEFT)? textBounds.x : bounds.x, + bounds.y, + bounds.width + textBounds.width + GuiGetStyle(CHECKBOX, TEXT_PADDING), + bounds.height, + }; + + // Check checkbox state + if (CheckCollisionPointRec(mousePoint, totalBounds)) + { + if (IsMouseButtonDown(MOUSE_LEFT_BUTTON)) state = GUI_STATE_PRESSED; + else state = GUI_STATE_FOCUSED; + + if (IsMouseButtonReleased(MOUSE_LEFT_BUTTON)) checked = !checked; + } + } + //-------------------------------------------------------------------- + + // Draw control + //-------------------------------------------------------------------- + GuiDrawRectangle(bounds, GuiGetStyle(CHECKBOX, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(CHECKBOX, BORDER + (state*3))), guiAlpha), BLANK); + + if (checked) + { + Rectangle check = { bounds.x + GuiGetStyle(CHECKBOX, BORDER_WIDTH) + GuiGetStyle(CHECKBOX, CHECK_PADDING), + bounds.y + GuiGetStyle(CHECKBOX, BORDER_WIDTH) + GuiGetStyle(CHECKBOX, CHECK_PADDING), + bounds.width - 2*(GuiGetStyle(CHECKBOX, BORDER_WIDTH) + GuiGetStyle(CHECKBOX, CHECK_PADDING)), + bounds.height - 2*(GuiGetStyle(CHECKBOX, BORDER_WIDTH) + GuiGetStyle(CHECKBOX, CHECK_PADDING)) }; + GuiDrawRectangle(check, 0, BLANK, Fade(GetColor(GuiGetStyle(CHECKBOX, TEXT + state*3)), guiAlpha)); + } + + GuiDrawText(text, textBounds, (GuiGetStyle(CHECKBOX, TEXT_ALIGNMENT) == GUI_TEXT_ALIGN_RIGHT)? GUI_TEXT_ALIGN_LEFT : GUI_TEXT_ALIGN_RIGHT, Fade(GetColor(GuiGetStyle(LABEL, TEXT + (state*3))), guiAlpha)); + //-------------------------------------------------------------------- + + return checked; +} + +// Combo Box control, returns selected item index +int GuiComboBox(Rectangle bounds, const char *text, int active) +{ + GuiControlState state = guiState; + + bounds.width -= (GuiGetStyle(COMBOBOX, COMBO_BUTTON_WIDTH) + GuiGetStyle(COMBOBOX, COMBO_BUTTON_PADDING)); + + Rectangle selector = { (float)bounds.x + bounds.width + GuiGetStyle(COMBOBOX, COMBO_BUTTON_PADDING), + (float)bounds.y, (float)GuiGetStyle(COMBOBOX, COMBO_BUTTON_WIDTH), (float)bounds.height }; + + // Get substrings items from text (items pointers, lengths and count) + int itemCount = 0; + const char **items = GuiTextSplit(text, &itemCount, NULL); + + if (active < 0) active = 0; + else if (active > itemCount - 1) active = itemCount - 1; + + // Update control + //-------------------------------------------------------------------- + if ((state != GUI_STATE_DISABLED) && !guiLocked && (itemCount > 1)) + { + Vector2 mousePoint = GetMousePosition(); + + if (CheckCollisionPointRec(mousePoint, bounds) || + CheckCollisionPointRec(mousePoint, selector)) + { + if (IsMouseButtonPressed(MOUSE_LEFT_BUTTON)) + { + active += 1; + if (active >= itemCount) active = 0; + } + + if (IsMouseButtonDown(MOUSE_LEFT_BUTTON)) state = GUI_STATE_PRESSED; + else state = GUI_STATE_FOCUSED; + } + } + //-------------------------------------------------------------------- + + // Draw control + //-------------------------------------------------------------------- + // Draw combo box main + GuiDrawRectangle(bounds, GuiGetStyle(COMBOBOX, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(COMBOBOX, BORDER + (state*3))), guiAlpha), Fade(GetColor(GuiGetStyle(COMBOBOX, BASE + (state*3))), guiAlpha)); + GuiDrawText(items[active], GetTextBounds(COMBOBOX, bounds), GuiGetStyle(COMBOBOX, TEXT_ALIGNMENT), Fade(GetColor(GuiGetStyle(COMBOBOX, TEXT + (state*3))), guiAlpha)); + + // Draw selector using a custom button + // NOTE: BORDER_WIDTH and TEXT_ALIGNMENT forced values + int tempBorderWidth = GuiGetStyle(BUTTON, BORDER_WIDTH); + int tempTextAlign = GuiGetStyle(BUTTON, TEXT_ALIGNMENT); + GuiSetStyle(BUTTON, BORDER_WIDTH, 1); + GuiSetStyle(BUTTON, TEXT_ALIGNMENT, GUI_TEXT_ALIGN_CENTER); + + GuiButton(selector, TextFormat("%i/%i", active + 1, itemCount)); + + GuiSetStyle(BUTTON, TEXT_ALIGNMENT, tempTextAlign); + GuiSetStyle(BUTTON, BORDER_WIDTH, tempBorderWidth); + //-------------------------------------------------------------------- + + return active; +} + +// Dropdown Box control +// NOTE: Returns mouse click +bool GuiDropdownBox(Rectangle bounds, const char *text, int *active, bool editMode) +{ + GuiControlState state = guiState; + int itemSelected = *active; + int itemFocused = -1; + + // Get substrings items from text (items pointers, lengths and count) + int itemCount = 0; + const char **items = GuiTextSplit(text, &itemCount, NULL); + + Rectangle boundsOpen = bounds; + boundsOpen.height = (itemCount + 1)*(bounds.height + GuiGetStyle(DROPDOWNBOX, DROPDOWN_ITEMS_PADDING)); + + Rectangle itemBounds = bounds; + + bool pressed = false; // Check mouse button pressed + + // Update control + //-------------------------------------------------------------------- + if ((state != GUI_STATE_DISABLED) && (editMode || !guiLocked) && (itemCount > 1)) + { + Vector2 mousePoint = GetMousePosition(); + + if (editMode) + { + state = GUI_STATE_PRESSED; + + // Check if mouse has been pressed or released outside limits + if (!CheckCollisionPointRec(mousePoint, boundsOpen)) + { + if (IsMouseButtonPressed(MOUSE_LEFT_BUTTON) || IsMouseButtonReleased(MOUSE_LEFT_BUTTON)) pressed = true; + } + + // Check if already selected item has been pressed again + if (CheckCollisionPointRec(mousePoint, bounds) && IsMouseButtonPressed(MOUSE_LEFT_BUTTON)) pressed = true; + + // Check focused and selected item + for (int i = 0; i < itemCount; i++) + { + // Update item rectangle y position for next item + itemBounds.y += (bounds.height + GuiGetStyle(DROPDOWNBOX, DROPDOWN_ITEMS_PADDING)); + + if (CheckCollisionPointRec(mousePoint, itemBounds)) + { + itemFocused = i; + if (IsMouseButtonReleased(MOUSE_LEFT_BUTTON)) + { + itemSelected = i; + pressed = true; // Item selected, change to editMode = false + } + break; + } + } + + itemBounds = bounds; + } + else + { + if (CheckCollisionPointRec(mousePoint, bounds)) + { + if (IsMouseButtonPressed(MOUSE_LEFT_BUTTON)) + { + pressed = true; + state = GUI_STATE_PRESSED; + } + else state = GUI_STATE_FOCUSED; + } + } + } + //-------------------------------------------------------------------- + + // Draw control + //-------------------------------------------------------------------- + if (editMode) GuiPanel(boundsOpen); + + GuiDrawRectangle(bounds, GuiGetStyle(DROPDOWNBOX, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(DROPDOWNBOX, BORDER + state*3)), guiAlpha), Fade(GetColor(GuiGetStyle(DROPDOWNBOX, BASE + state*3)), guiAlpha)); + GuiDrawText(items[itemSelected], GetTextBounds(DEFAULT, bounds), GuiGetStyle(DROPDOWNBOX, TEXT_ALIGNMENT), Fade(GetColor(GuiGetStyle(DROPDOWNBOX, TEXT + state*3)), guiAlpha)); + + if (editMode) + { + // Draw visible items + for (int i = 0; i < itemCount; i++) + { + // Update item rectangle y position for next item + itemBounds.y += (bounds.height + GuiGetStyle(DROPDOWNBOX, DROPDOWN_ITEMS_PADDING)); + + if (i == itemSelected) + { + GuiDrawRectangle(itemBounds, GuiGetStyle(DROPDOWNBOX, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(DROPDOWNBOX, BORDER_COLOR_PRESSED)), guiAlpha), Fade(GetColor(GuiGetStyle(DROPDOWNBOX, BASE_COLOR_PRESSED)), guiAlpha)); + GuiDrawText(items[i], GetTextBounds(DEFAULT, itemBounds), GuiGetStyle(DROPDOWNBOX, TEXT_ALIGNMENT), Fade(GetColor(GuiGetStyle(DROPDOWNBOX, TEXT_COLOR_PRESSED)), guiAlpha)); + } + else if (i == itemFocused) + { + GuiDrawRectangle(itemBounds, GuiGetStyle(DROPDOWNBOX, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(DROPDOWNBOX, BORDER_COLOR_FOCUSED)), guiAlpha), Fade(GetColor(GuiGetStyle(DROPDOWNBOX, BASE_COLOR_FOCUSED)), guiAlpha)); + GuiDrawText(items[i], GetTextBounds(DEFAULT, itemBounds), GuiGetStyle(DROPDOWNBOX, TEXT_ALIGNMENT), Fade(GetColor(GuiGetStyle(DROPDOWNBOX, TEXT_COLOR_FOCUSED)), guiAlpha)); + } + else GuiDrawText(items[i], GetTextBounds(DEFAULT, itemBounds), GuiGetStyle(DROPDOWNBOX, TEXT_ALIGNMENT), Fade(GetColor(GuiGetStyle(DROPDOWNBOX, TEXT_COLOR_NORMAL)), guiAlpha)); + } + } + + // Draw arrows (using icon if available) +#if defined(RAYGUI_NO_RICONS) + GuiDrawText("v", RAYGUI_CLITERAL(Rectangle){ bounds.x + bounds.width - GuiGetStyle(DROPDOWNBOX, ARROW_PADDING), bounds.y + bounds.height/2 - 2, 10, 10 }, + GUI_TEXT_ALIGN_CENTER, Fade(GetColor(GuiGetStyle(DROPDOWNBOX, TEXT + (state*3))), guiAlpha)); +#else + GuiDrawText("#120#", RAYGUI_CLITERAL(Rectangle){ bounds.x + bounds.width - GuiGetStyle(DROPDOWNBOX, ARROW_PADDING), bounds.y + bounds.height/2 - 6, 10, 10 }, + GUI_TEXT_ALIGN_CENTER, Fade(GetColor(GuiGetStyle(DROPDOWNBOX, TEXT + (state*3))), guiAlpha)); // RICON_ARROW_DOWN_FILL +#endif + //-------------------------------------------------------------------- + + *active = itemSelected; + return pressed; +} + +// Text Box control, updates input text +// NOTE 2: Returns if KEY_ENTER pressed (useful for data validation) +bool GuiTextBox(Rectangle bounds, char *text, int textSize, bool editMode) +{ + GuiControlState state = guiState; + bool pressed = false; + + Rectangle cursor = { + bounds.x + GuiGetStyle(TEXTBOX, TEXT_PADDING) + GetTextWidth(text) + 2, + bounds.y + bounds.height/2 - GuiGetStyle(DEFAULT, TEXT_SIZE), + 4, + (float)GuiGetStyle(DEFAULT, TEXT_SIZE)*2 + }; + + if (cursor.height > bounds.height) cursor.height = bounds.height - GuiGetStyle(TEXTBOX, BORDER_WIDTH)*2; + + // Update control + //-------------------------------------------------------------------- + if ((state != GUI_STATE_DISABLED) && !guiLocked) + { + Vector2 mousePoint = GetMousePosition(); + + if (editMode) + { + state = GUI_STATE_PRESSED; + + int key = GetCharPressed(); // Returns codepoint as Unicode + int keyCount = (int)strlen(text); + + // Only allow keys in range [32..125] + if (keyCount < (textSize - 1)) + { + float maxWidth = (bounds.width - (GuiGetStyle(TEXTBOX, TEXT_INNER_PADDING)*2)); + + if ((GetTextWidth(text) < (maxWidth - GuiGetStyle(DEFAULT, TEXT_SIZE))) && (key >= 32)) + { + int byteSize = 0; + const char *textUTF8 = CodepointToUTF8(key, &byteSize); + + for (int i = 0; i < byteSize; i++) + { + text[keyCount] = textUTF8[i]; + keyCount++; + } + + text[keyCount] = '\0'; + } + } + + // Delete text + if (keyCount > 0) + { + if (IsKeyPressed(KEY_BACKSPACE)) + { + keyCount--; + text[keyCount] = '\0'; + if (keyCount < 0) keyCount = 0; + } + } + + if (IsKeyPressed(KEY_ENTER) || (!CheckCollisionPointRec(mousePoint, bounds) && IsMouseButtonPressed(MOUSE_LEFT_BUTTON))) pressed = true; + + // Check text alignment to position cursor properly + int textAlignment = GuiGetStyle(TEXTBOX, TEXT_ALIGNMENT); + if (textAlignment == GUI_TEXT_ALIGN_CENTER) cursor.x = bounds.x + GetTextWidth(text)/2 + bounds.width/2 + 1; + else if (textAlignment == GUI_TEXT_ALIGN_RIGHT) cursor.x = bounds.x + bounds.width - GuiGetStyle(TEXTBOX, TEXT_INNER_PADDING); + } + else + { + if (CheckCollisionPointRec(mousePoint, bounds)) + { + state = GUI_STATE_FOCUSED; + if (IsMouseButtonPressed(MOUSE_LEFT_BUTTON)) pressed = true; + } + } + } + //-------------------------------------------------------------------- + + // Draw control + //-------------------------------------------------------------------- + if (state == GUI_STATE_PRESSED) + { + GuiDrawRectangle(bounds, GuiGetStyle(TEXTBOX, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(TEXTBOX, BORDER + (state*3))), guiAlpha), Fade(GetColor(GuiGetStyle(TEXTBOX, BASE_COLOR_PRESSED)), guiAlpha)); + } + else if (state == GUI_STATE_DISABLED) + { + GuiDrawRectangle(bounds, GuiGetStyle(TEXTBOX, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(TEXTBOX, BORDER + (state*3))), guiAlpha), Fade(GetColor(GuiGetStyle(TEXTBOX, BASE_COLOR_DISABLED)), guiAlpha)); + } + else GuiDrawRectangle(bounds, 1, Fade(GetColor(GuiGetStyle(TEXTBOX, BORDER + (state*3))), guiAlpha), BLANK); + + GuiDrawText(text, GetTextBounds(TEXTBOX, bounds), GuiGetStyle(TEXTBOX, TEXT_ALIGNMENT), Fade(GetColor(GuiGetStyle(TEXTBOX, TEXT + (state*3))), guiAlpha)); + + // Draw cursor + if (editMode) GuiDrawRectangle(cursor, 0, BLANK, Fade(GetColor(GuiGetStyle(TEXTBOX, BORDER_COLOR_PRESSED)), guiAlpha)); + //-------------------------------------------------------------------- + + return pressed; +} + +// Spinner control, returns selected value +bool GuiSpinner(Rectangle bounds, const char *text, int *value, int minValue, int maxValue, bool editMode) +{ + GuiControlState state = guiState; + + bool pressed = false; + int tempValue = *value; + + Rectangle spinner = { bounds.x + GuiGetStyle(SPINNER, SPIN_BUTTON_WIDTH) + GuiGetStyle(SPINNER, SPIN_BUTTON_PADDING), bounds.y, + bounds.width - 2*(GuiGetStyle(SPINNER, SPIN_BUTTON_WIDTH) + GuiGetStyle(SPINNER, SPIN_BUTTON_PADDING)), bounds.height }; + Rectangle leftButtonBound = { (float)bounds.x, (float)bounds.y, (float)GuiGetStyle(SPINNER, SPIN_BUTTON_WIDTH), (float)bounds.height }; + Rectangle rightButtonBound = { (float)bounds.x + bounds.width - GuiGetStyle(SPINNER, SPIN_BUTTON_WIDTH), (float)bounds.y, (float)GuiGetStyle(SPINNER, SPIN_BUTTON_WIDTH), (float)bounds.height }; + + Rectangle textBounds = { 0 }; + if (text != NULL) + { + textBounds.width = (float)GetTextWidth(text); + textBounds.height = (float)GuiGetStyle(DEFAULT, TEXT_SIZE); + textBounds.x = bounds.x + bounds.width + GuiGetStyle(SPINNER, TEXT_PADDING); + textBounds.y = bounds.y + bounds.height/2 - GuiGetStyle(DEFAULT, TEXT_SIZE)/2; + if (GuiGetStyle(SPINNER, TEXT_ALIGNMENT) == GUI_TEXT_ALIGN_LEFT) textBounds.x = bounds.x - textBounds.width - GuiGetStyle(SPINNER, TEXT_PADDING); + } + + // Update control + //-------------------------------------------------------------------- + if ((state != GUI_STATE_DISABLED) && !guiLocked) + { + Vector2 mousePoint = GetMousePosition(); + + // Check spinner state + if (CheckCollisionPointRec(mousePoint, bounds)) + { + if (IsMouseButtonDown(MOUSE_LEFT_BUTTON)) state = GUI_STATE_PRESSED; + else state = GUI_STATE_FOCUSED; + } + } + + if (!editMode) + { + if (tempValue < minValue) tempValue = minValue; + if (tempValue > maxValue) tempValue = maxValue; + } + //-------------------------------------------------------------------- + + // Draw control + //-------------------------------------------------------------------- + // TODO: Set Spinner properties for ValueBox + pressed = GuiValueBox(spinner, NULL, &tempValue, minValue, maxValue, editMode); + + // Draw value selector custom buttons + // NOTE: BORDER_WIDTH and TEXT_ALIGNMENT forced values + int tempBorderWidth = GuiGetStyle(BUTTON, BORDER_WIDTH); + int tempTextAlign = GuiGetStyle(BUTTON, TEXT_ALIGNMENT); + GuiSetStyle(BUTTON, BORDER_WIDTH, GuiGetStyle(SPINNER, BORDER_WIDTH)); + GuiSetStyle(BUTTON, TEXT_ALIGNMENT, GUI_TEXT_ALIGN_CENTER); + +#if defined(RAYGUI_NO_RICONS) + if (GuiButton(leftButtonBound, "<")) tempValue--; + if (GuiButton(rightButtonBound, ">")) tempValue++; +#else + if (GuiButton(leftButtonBound, GuiIconText(RICON_ARROW_LEFT_FILL, NULL))) tempValue--; + if (GuiButton(rightButtonBound, GuiIconText(RICON_ARROW_RIGHT_FILL, NULL))) tempValue++; +#endif + + GuiSetStyle(BUTTON, TEXT_ALIGNMENT, tempTextAlign); + GuiSetStyle(BUTTON, BORDER_WIDTH, tempBorderWidth); + + // Draw text label if provided + GuiDrawText(text, textBounds, (GuiGetStyle(SPINNER, TEXT_ALIGNMENT) == GUI_TEXT_ALIGN_RIGHT)? GUI_TEXT_ALIGN_LEFT : GUI_TEXT_ALIGN_RIGHT, Fade(GetColor(GuiGetStyle(LABEL, TEXT + (state*3))), guiAlpha)); + //-------------------------------------------------------------------- + + *value = tempValue; + return pressed; +} + +// Value Box control, updates input text with numbers +// NOTE: Requires static variables: frameCounter +bool GuiValueBox(Rectangle bounds, const char *text, int *value, int minValue, int maxValue, bool editMode) +{ + #if !defined(VALUEBOX_MAX_CHARS) + #define VALUEBOX_MAX_CHARS 32 + #endif + + GuiControlState state = guiState; + bool pressed = false; + + char textValue[VALUEBOX_MAX_CHARS + 1] = "\0"; + sprintf(textValue, "%i", *value); + + Rectangle textBounds = { 0 }; + if (text != NULL) + { + textBounds.width = (float)GetTextWidth(text); + textBounds.height = (float)GuiGetStyle(DEFAULT, TEXT_SIZE); + textBounds.x = bounds.x + bounds.width + GuiGetStyle(VALUEBOX, TEXT_PADDING); + textBounds.y = bounds.y + bounds.height/2 - GuiGetStyle(DEFAULT, TEXT_SIZE)/2; + if (GuiGetStyle(VALUEBOX, TEXT_ALIGNMENT) == GUI_TEXT_ALIGN_LEFT) textBounds.x = bounds.x - textBounds.width - GuiGetStyle(VALUEBOX, TEXT_PADDING); + } + + // Update control + //-------------------------------------------------------------------- + if ((state != GUI_STATE_DISABLED) && !guiLocked) + { + Vector2 mousePoint = GetMousePosition(); + + bool valueHasChanged = false; + + if (editMode) + { + state = GUI_STATE_PRESSED; + + int keyCount = (int)strlen(textValue); + + // Only allow keys in range [48..57] + if (keyCount < VALUEBOX_MAX_CHARS) + { + if (GetTextWidth(textValue) < bounds.width) + { + int key = GetCharPressed(); + if ((key >= 48) && (key <= 57)) + { + textValue[keyCount] = (char)key; + keyCount++; + valueHasChanged = true; + } + } + } + + // Delete text + if (keyCount > 0) + { + if (IsKeyPressed(KEY_BACKSPACE)) + { + keyCount--; + textValue[keyCount] = '\0'; + if (keyCount < 0) keyCount = 0; + valueHasChanged = true; + } + } + + if (valueHasChanged) *value = TextToInteger(textValue); + + if (IsKeyPressed(KEY_ENTER) || (!CheckCollisionPointRec(mousePoint, bounds) && IsMouseButtonPressed(MOUSE_LEFT_BUTTON))) pressed = true; + } + else + { + if (*value > maxValue) *value = maxValue; + else if (*value < minValue) *value = minValue; + + if (CheckCollisionPointRec(mousePoint, bounds)) + { + state = GUI_STATE_FOCUSED; + if (IsMouseButtonPressed(MOUSE_LEFT_BUTTON)) pressed = true; + } + } + } + //-------------------------------------------------------------------- + + // Draw control + //-------------------------------------------------------------------- + Color baseColor = BLANK; + if (state == GUI_STATE_PRESSED) baseColor = GetColor(GuiGetStyle(VALUEBOX, BASE_COLOR_PRESSED)); + else if (state == GUI_STATE_DISABLED) baseColor = GetColor(GuiGetStyle(VALUEBOX, BASE_COLOR_DISABLED)); + + // WARNING: BLANK color does not work properly with Fade() + GuiDrawRectangle(bounds, GuiGetStyle(VALUEBOX, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(VALUEBOX, BORDER + (state*3))), guiAlpha), baseColor); + GuiDrawText(textValue, GetTextBounds(VALUEBOX, bounds), GUI_TEXT_ALIGN_CENTER, Fade(GetColor(GuiGetStyle(VALUEBOX, TEXT + (state*3))), guiAlpha)); + + // Draw cursor + if (editMode) + { + // NOTE: ValueBox internal text is always centered + Rectangle cursor = { bounds.x + GetTextWidth(textValue)/2 + bounds.width/2 + 2, bounds.y + 2*GuiGetStyle(VALUEBOX, BORDER_WIDTH), 4, bounds.height - 4*GuiGetStyle(VALUEBOX, BORDER_WIDTH) }; + GuiDrawRectangle(cursor, 0, BLANK, Fade(GetColor(GuiGetStyle(VALUEBOX, BORDER_COLOR_PRESSED)), guiAlpha)); + } + + // Draw text label if provided + GuiDrawText(text, textBounds, (GuiGetStyle(VALUEBOX, TEXT_ALIGNMENT) == GUI_TEXT_ALIGN_RIGHT)? GUI_TEXT_ALIGN_LEFT : GUI_TEXT_ALIGN_RIGHT, Fade(GetColor(GuiGetStyle(LABEL, TEXT + (state*3))), guiAlpha)); + //-------------------------------------------------------------------- + + return pressed; +} + +// Text Box control with multiple lines +bool GuiTextBoxMulti(Rectangle bounds, char *text, int textSize, bool editMode) +{ + GuiControlState state = guiState; + bool pressed = false; + + Rectangle textAreaBounds = { + bounds.x + GuiGetStyle(TEXTBOX, BORDER_WIDTH) + GuiGetStyle(TEXTBOX, TEXT_INNER_PADDING), + bounds.y + GuiGetStyle(TEXTBOX, BORDER_WIDTH) + GuiGetStyle(TEXTBOX, TEXT_INNER_PADDING), + bounds.width - 2*(GuiGetStyle(TEXTBOX, BORDER_WIDTH) + GuiGetStyle(TEXTBOX, TEXT_INNER_PADDING)), + bounds.height - 2*(GuiGetStyle(TEXTBOX, BORDER_WIDTH) + GuiGetStyle(TEXTBOX, TEXT_INNER_PADDING)) + }; + + // Cursor position, [x, y] values should be updated + Rectangle cursor = { 0, -1, 4, (float)GuiGetStyle(DEFAULT, TEXT_SIZE) + 2 }; + + float scaleFactor = (float)GuiGetStyle(DEFAULT, TEXT_SIZE)/(float)guiFont.baseSize; // Character rectangle scaling factor + + // Update control + //-------------------------------------------------------------------- + if ((state != GUI_STATE_DISABLED) && !guiLocked) + { + Vector2 mousePoint = GetMousePosition(); + + if (editMode) + { + state = GUI_STATE_PRESSED; + + // We get an Unicode codepoint + int codepoint = GetCharPressed(); + int textLength = (int)strlen(text); // Length in bytes (UTF-8 string) + + // Introduce characters + if (textLength < (textSize - 1)) + { + if (IsKeyPressed(KEY_ENTER)) + { + text[textLength] = '\n'; + textLength++; + } + else if (codepoint >= 32) + { + // Supports Unicode inputs -> Encoded to UTF-8 + int charUTF8Length = 0; + const char *charEncoded = CodepointToUTF8(codepoint, &charUTF8Length); + memcpy(text + textLength, charEncoded, charUTF8Length); + textLength += charUTF8Length; + } + } + + // Delete characters + if (textLength > 0) + { + if (IsKeyPressed(KEY_BACKSPACE)) + { + if ((unsigned char)text[textLength - 1] < 127) + { + // Remove ASCII equivalent character (1 byte) + textLength--; + text[textLength] = '\0'; + } + else + { + // Remove latest UTF-8 unicode character introduced (n bytes) + int charUTF8Length = 0; + while (((unsigned char)text[textLength - 1 - charUTF8Length] & 0b01000000) == 0) charUTF8Length++; + + textLength -= (charUTF8Length + 1); + text[textLength] = '\0'; + } + } + } + + // Exit edit mode + if (!CheckCollisionPointRec(mousePoint, bounds) && IsMouseButtonPressed(MOUSE_LEFT_BUTTON)) pressed = true; + } + else + { + if (CheckCollisionPointRec(mousePoint, bounds)) + { + state = GUI_STATE_FOCUSED; + if (IsMouseButtonPressed(MOUSE_LEFT_BUTTON)) pressed = true; + } + } + } + //-------------------------------------------------------------------- + + // Draw control + //-------------------------------------------------------------------- + if (state == GUI_STATE_PRESSED) + { + GuiDrawRectangle(bounds, GuiGetStyle(TEXTBOX, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(TEXTBOX, BORDER + (state*3))), guiAlpha), Fade(GetColor(GuiGetStyle(TEXTBOX, BASE_COLOR_PRESSED)), guiAlpha)); + } + else if (state == GUI_STATE_DISABLED) + { + GuiDrawRectangle(bounds, GuiGetStyle(TEXTBOX, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(TEXTBOX, BORDER + (state*3))), guiAlpha), Fade(GetColor(GuiGetStyle(TEXTBOX, BASE_COLOR_DISABLED)), guiAlpha)); + } + else GuiDrawRectangle(bounds, 1, Fade(GetColor(GuiGetStyle(TEXTBOX, BORDER + (state*3))), guiAlpha), BLANK); + + int wrapMode = 1; // 0-No wrap, 1-Char wrap, 2-Word wrap + Vector2 cursorPos = { textAreaBounds.x, textAreaBounds.y }; + + //int lastSpacePos = 0; + //int lastSpaceWidth = 0; + //int lastSpaceCursorPos = 0; + + for (int i = 0, codepointLength = 0; text[i] != '\0'; i += codepointLength) + { + int codepoint = GetCodepoint(text + i, &codepointLength); + int index = GetGlyphIndex(guiFont, codepoint); // If requested codepoint is not found, we get '?' (0x3f) + Rectangle atlasRec = guiFont.recs[index]; + GlyphInfo glyphInfo = guiFont.glyphs[index]; // Glyph measures + + if ((codepointLength == 1) && (codepoint == '\n')) + { + cursorPos.y += (guiFont.baseSize*scaleFactor + GuiGetStyle(TEXTBOX, TEXT_LINES_PADDING)); // Line feed + cursorPos.x = textAreaBounds.x; // Carriage return + } + else + { + if (wrapMode == 1) + { + int glyphWidth = 0; + if (glyphInfo.advanceX != 0) glyphWidth += glyphInfo.advanceX; + else glyphWidth += (atlasRec.width + glyphInfo.offsetX); + + // Jump line if the end of the text box area has been reached + if ((cursorPos.x + (glyphWidth*scaleFactor)) > (textAreaBounds.x + textAreaBounds.width)) + { + cursorPos.y += (guiFont.baseSize*scaleFactor + GuiGetStyle(TEXTBOX, TEXT_LINES_PADDING)); // Line feed + cursorPos.x = textAreaBounds.x; // Carriage return + } + } + else if (wrapMode == 2) + { + /* + if ((codepointLength == 1) && (codepoint == ' ')) + { + lastSpacePos = i; + lastSpaceWidth = 0; + lastSpaceCursorPos = cursorPos.x; + } + + // Jump line if last word reaches end of text box area + if ((lastSpaceCursorPos + lastSpaceWidth) > (textAreaBounds.x + textAreaBounds.width)) + { + cursorPos.y += 12; // Line feed + cursorPos.x = textAreaBounds.x; // Carriage return + } + */ + } + + // Draw current character glyph + DrawTextCodepoint(guiFont, codepoint, cursorPos, (float)GuiGetStyle(DEFAULT, TEXT_SIZE), Fade(GetColor(GuiGetStyle(TEXTBOX, TEXT + (state*3))), guiAlpha)); + + int glyphWidth = 0; + if (glyphInfo.advanceX != 0) glyphWidth += glyphInfo.advanceX; + else glyphWidth += (atlasRec.width + glyphInfo.offsetX); + + cursorPos.x += (glyphWidth*scaleFactor + (float)GuiGetStyle(DEFAULT, TEXT_SPACING)); + //if (i > lastSpacePos) lastSpaceWidth += (atlasRec.width + (float)GuiGetStyle(DEFAULT, TEXT_SPACING)); + } + } + + cursor.x = cursorPos.x; + cursor.y = cursorPos.y; + + // Draw cursor position considering text glyphs + if (editMode) GuiDrawRectangle(cursor, 0, BLANK, Fade(GetColor(GuiGetStyle(TEXTBOX, BORDER_COLOR_PRESSED)), guiAlpha)); + //-------------------------------------------------------------------- + + return pressed; +} + +// Slider control with pro parameters +// NOTE: Other GuiSlider*() controls use this one +float GuiSliderPro(Rectangle bounds, const char *textLeft, const char *textRight, float value, float minValue, float maxValue, int sliderWidth) +{ + GuiControlState state = guiState; + + int sliderValue = (int)(((value - minValue)/(maxValue - minValue))*(bounds.width - 2*GuiGetStyle(SLIDER, BORDER_WIDTH))); + + Rectangle slider = { bounds.x, bounds.y + GuiGetStyle(SLIDER, BORDER_WIDTH) + GuiGetStyle(SLIDER, SLIDER_PADDING), + 0, bounds.height - 2*GuiGetStyle(SLIDER, BORDER_WIDTH) - 2*GuiGetStyle(SLIDER, SLIDER_PADDING) }; + + if (sliderWidth > 0) // Slider + { + slider.x += (sliderValue - sliderWidth/2); + slider.width = (float)sliderWidth; + } + else if (sliderWidth == 0) // SliderBar + { + slider.x += GuiGetStyle(SLIDER, BORDER_WIDTH); + slider.width = (float)sliderValue; + } + + // Update control + //-------------------------------------------------------------------- + if ((state != GUI_STATE_DISABLED) && !guiLocked) + { + Vector2 mousePoint = GetMousePosition(); + + if (CheckCollisionPointRec(mousePoint, bounds)) + { + if (IsMouseButtonDown(MOUSE_LEFT_BUTTON)) + { + state = GUI_STATE_PRESSED; + + // Get equivalent value and slider position from mousePoint.x + value = ((maxValue - minValue)*(mousePoint.x - (float)(bounds.x + sliderWidth/2)))/(float)(bounds.width - sliderWidth) + minValue; + + if (sliderWidth > 0) slider.x = mousePoint.x - slider.width/2; // Slider + else if (sliderWidth == 0) slider.width = (float)sliderValue; // SliderBar + } + else state = GUI_STATE_FOCUSED; + } + + if (value > maxValue) value = maxValue; + else if (value < minValue) value = minValue; + } + + // Bar limits check + if (sliderWidth > 0) // Slider + { + if (slider.x <= (bounds.x + GuiGetStyle(SLIDER, BORDER_WIDTH))) slider.x = bounds.x + GuiGetStyle(SLIDER, BORDER_WIDTH); + else if ((slider.x + slider.width) >= (bounds.x + bounds.width)) slider.x = bounds.x + bounds.width - slider.width - GuiGetStyle(SLIDER, BORDER_WIDTH); + } + else if (sliderWidth == 0) // SliderBar + { + if (slider.width > bounds.width) slider.width = bounds.width - 2*GuiGetStyle(SLIDER, BORDER_WIDTH); + } + //-------------------------------------------------------------------- + + // Draw control + //-------------------------------------------------------------------- + GuiDrawRectangle(bounds, GuiGetStyle(SLIDER, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(SLIDER, BORDER + (state*3))), guiAlpha), Fade(GetColor(GuiGetStyle(SLIDER, (state != GUI_STATE_DISABLED)? BASE_COLOR_NORMAL : BASE_COLOR_DISABLED)), guiAlpha)); + + // Draw slider internal bar (depends on state) + if ((state == GUI_STATE_NORMAL) || (state == GUI_STATE_PRESSED)) GuiDrawRectangle(slider, 0, BLANK, Fade(GetColor(GuiGetStyle(SLIDER, BASE_COLOR_PRESSED)), guiAlpha)); + else if (state == GUI_STATE_FOCUSED) GuiDrawRectangle(slider, 0, BLANK, Fade(GetColor(GuiGetStyle(SLIDER, TEXT_COLOR_FOCUSED)), guiAlpha)); + + // Draw left/right text if provided + if (textLeft != NULL) + { + Rectangle textBounds = { 0 }; + textBounds.width = (float)GetTextWidth(textLeft); + textBounds.height = (float)GuiGetStyle(DEFAULT, TEXT_SIZE); + textBounds.x = bounds.x - textBounds.width - GuiGetStyle(SLIDER, TEXT_PADDING); + textBounds.y = bounds.y + bounds.height/2 - GuiGetStyle(DEFAULT, TEXT_SIZE)/2; + + GuiDrawText(textLeft, textBounds, GUI_TEXT_ALIGN_RIGHT, Fade(GetColor(GuiGetStyle(SLIDER, TEXT + (state*3))), guiAlpha)); + } + + if (textRight != NULL) + { + Rectangle textBounds = { 0 }; + textBounds.width = (float)GetTextWidth(textRight); + textBounds.height = (float)GuiGetStyle(DEFAULT, TEXT_SIZE); + textBounds.x = bounds.x + bounds.width + GuiGetStyle(SLIDER, TEXT_PADDING); + textBounds.y = bounds.y + bounds.height/2 - GuiGetStyle(DEFAULT, TEXT_SIZE)/2; + + GuiDrawText(textRight, textBounds, GUI_TEXT_ALIGN_LEFT, Fade(GetColor(GuiGetStyle(SLIDER, TEXT + (state*3))), guiAlpha)); + } + //-------------------------------------------------------------------- + + return value; +} + +// Slider control extended, returns selected value and has text +float GuiSlider(Rectangle bounds, const char *textLeft, const char *textRight, float value, float minValue, float maxValue) +{ + return GuiSliderPro(bounds, textLeft, textRight, value, minValue, maxValue, GuiGetStyle(SLIDER, SLIDER_WIDTH)); +} + +// Slider Bar control extended, returns selected value +float GuiSliderBar(Rectangle bounds, const char *textLeft, const char *textRight, float value, float minValue, float maxValue) +{ + return GuiSliderPro(bounds, textLeft, textRight, value, minValue, maxValue, 0); +} + +// Progress Bar control extended, shows current progress value +float GuiProgressBar(Rectangle bounds, const char *textLeft, const char *textRight, float value, float minValue, float maxValue) +{ + GuiControlState state = guiState; + + Rectangle progress = { bounds.x + GuiGetStyle(PROGRESSBAR, BORDER_WIDTH), + bounds.y + GuiGetStyle(PROGRESSBAR, BORDER_WIDTH) + GuiGetStyle(PROGRESSBAR, PROGRESS_PADDING), 0, + bounds.height - 2*GuiGetStyle(PROGRESSBAR, BORDER_WIDTH) - 2*GuiGetStyle(PROGRESSBAR, PROGRESS_PADDING) }; + + // Update control + //-------------------------------------------------------------------- + if (state != GUI_STATE_DISABLED) progress.width = ((float)(value/(maxValue - minValue))*(float)(bounds.width - 2*GuiGetStyle(PROGRESSBAR, BORDER_WIDTH))); + //-------------------------------------------------------------------- + + // Draw control + //-------------------------------------------------------------------- + GuiDrawRectangle(bounds, GuiGetStyle(PROGRESSBAR, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(PROGRESSBAR, BORDER + (state*3))), guiAlpha), BLANK); + + // Draw slider internal progress bar (depends on state) + if ((state == GUI_STATE_NORMAL) || (state == GUI_STATE_PRESSED)) GuiDrawRectangle(progress, 0, BLANK, Fade(GetColor(GuiGetStyle(PROGRESSBAR, BASE_COLOR_PRESSED)), guiAlpha)); + else if (state == GUI_STATE_FOCUSED) GuiDrawRectangle(progress, 0, BLANK, Fade(GetColor(GuiGetStyle(PROGRESSBAR, TEXT_COLOR_FOCUSED)), guiAlpha)); + + // Draw left/right text if provided + if (textLeft != NULL) + { + Rectangle textBounds = { 0 }; + textBounds.width = (float)GetTextWidth(textLeft); + textBounds.height = (float)GuiGetStyle(DEFAULT, TEXT_SIZE); + textBounds.x = bounds.x - textBounds.width - GuiGetStyle(PROGRESSBAR, TEXT_PADDING); + textBounds.y = bounds.y + bounds.height/2 - GuiGetStyle(DEFAULT, TEXT_SIZE)/2; + + GuiDrawText(textLeft, textBounds, GUI_TEXT_ALIGN_RIGHT, Fade(GetColor(GuiGetStyle(PROGRESSBAR, TEXT + (state*3))), guiAlpha)); + } + + if (textRight != NULL) + { + Rectangle textBounds = { 0 }; + textBounds.width = (float)GetTextWidth(textRight); + textBounds.height = (float)GuiGetStyle(DEFAULT, TEXT_SIZE); + textBounds.x = bounds.x + bounds.width + GuiGetStyle(PROGRESSBAR, TEXT_PADDING); + textBounds.y = bounds.y + bounds.height/2 - GuiGetStyle(DEFAULT, TEXT_SIZE)/2; + + GuiDrawText(textRight, textBounds, GUI_TEXT_ALIGN_LEFT, Fade(GetColor(GuiGetStyle(PROGRESSBAR, TEXT + (state*3))), guiAlpha)); + } + //-------------------------------------------------------------------- + + return value; +} + +// Status Bar control +void GuiStatusBar(Rectangle bounds, const char *text) +{ + GuiControlState state = guiState; + + // Draw control + //-------------------------------------------------------------------- + GuiDrawRectangle(bounds, GuiGetStyle(STATUSBAR, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(STATUSBAR, (state != GUI_STATE_DISABLED)? BORDER_COLOR_NORMAL : BORDER_COLOR_DISABLED)), guiAlpha), + Fade(GetColor(GuiGetStyle(STATUSBAR, (state != GUI_STATE_DISABLED)? BASE_COLOR_NORMAL : BASE_COLOR_DISABLED)), guiAlpha)); + GuiDrawText(text, GetTextBounds(STATUSBAR, bounds), GuiGetStyle(STATUSBAR, TEXT_ALIGNMENT), Fade(GetColor(GuiGetStyle(STATUSBAR, (state != GUI_STATE_DISABLED)? TEXT_COLOR_NORMAL : TEXT_COLOR_DISABLED)), guiAlpha)); + //-------------------------------------------------------------------- +} + +// Dummy rectangle control, intended for placeholding +void GuiDummyRec(Rectangle bounds, const char *text) +{ + GuiControlState state = guiState; + + // Update control + //-------------------------------------------------------------------- + if ((state != GUI_STATE_DISABLED) && !guiLocked) + { + Vector2 mousePoint = GetMousePosition(); + + // Check button state + if (CheckCollisionPointRec(mousePoint, bounds)) + { + if (IsMouseButtonDown(MOUSE_LEFT_BUTTON)) state = GUI_STATE_PRESSED; + else state = GUI_STATE_FOCUSED; + } + } + //-------------------------------------------------------------------- + + // Draw control + //-------------------------------------------------------------------- + GuiDrawRectangle(bounds, 0, BLANK, Fade(GetColor(GuiGetStyle(DEFAULT, (state != GUI_STATE_DISABLED)? BASE_COLOR_NORMAL : BASE_COLOR_DISABLED)), guiAlpha)); + GuiDrawText(text, GetTextBounds(DEFAULT, bounds), GUI_TEXT_ALIGN_CENTER, Fade(GetColor(GuiGetStyle(BUTTON, (state != GUI_STATE_DISABLED)? TEXT_COLOR_NORMAL : TEXT_COLOR_DISABLED)), guiAlpha)); + //------------------------------------------------------------------ +} + +// Scroll Bar control +int GuiScrollBar(Rectangle bounds, int value, int minValue, int maxValue) +{ + GuiControlState state = guiState; + + // Is the scrollbar horizontal or vertical? + bool isVertical = (bounds.width > bounds.height)? false : true; + + // The size (width or height depending on scrollbar type) of the spinner buttons + const int spinnerSize = GuiGetStyle(SCROLLBAR, ARROWS_VISIBLE)? (isVertical? (int)bounds.width - 2*GuiGetStyle(SCROLLBAR, BORDER_WIDTH) : (int)bounds.height - 2*GuiGetStyle(SCROLLBAR, BORDER_WIDTH)) : 0; + + // Arrow buttons [<] [>] [∧] [∨] + Rectangle arrowUpLeft = { 0 }; + Rectangle arrowDownRight = { 0 }; + + // Actual area of the scrollbar excluding the arrow buttons + Rectangle scrollbar = { 0 }; + + // Slider bar that moves --[///]----- + Rectangle slider = { 0 }; + + // Normalize value + if (value > maxValue) value = maxValue; + if (value < minValue) value = minValue; + + const int range = maxValue - minValue; + int sliderSize = GuiGetStyle(SCROLLBAR, SCROLL_SLIDER_SIZE); + + // Calculate rectangles for all of the components + arrowUpLeft = RAYGUI_CLITERAL(Rectangle){ (float)bounds.x + GuiGetStyle(SCROLLBAR, BORDER_WIDTH), (float)bounds.y + GuiGetStyle(SCROLLBAR, BORDER_WIDTH), (float)spinnerSize, (float)spinnerSize }; + + if (isVertical) + { + arrowDownRight = RAYGUI_CLITERAL(Rectangle){ (float)bounds.x + GuiGetStyle(SCROLLBAR, BORDER_WIDTH), (float)bounds.y + bounds.height - spinnerSize - GuiGetStyle(SCROLLBAR, BORDER_WIDTH), (float)spinnerSize, (float)spinnerSize}; + scrollbar = RAYGUI_CLITERAL(Rectangle){ bounds.x + GuiGetStyle(SCROLLBAR, BORDER_WIDTH) + GuiGetStyle(SCROLLBAR, SCROLL_PADDING), arrowUpLeft.y + arrowUpLeft.height, bounds.width - 2*(GuiGetStyle(SCROLLBAR, BORDER_WIDTH) + GuiGetStyle(SCROLLBAR, SCROLL_PADDING)), bounds.height - arrowUpLeft.height - arrowDownRight.height - 2*GuiGetStyle(SCROLLBAR, BORDER_WIDTH) }; + sliderSize = (sliderSize >= scrollbar.height)? ((int)scrollbar.height - 2) : sliderSize; // Make sure the slider won't get outside of the scrollbar + slider = RAYGUI_CLITERAL(Rectangle){ (float)bounds.x + GuiGetStyle(SCROLLBAR, BORDER_WIDTH) + GuiGetStyle(SCROLLBAR, SCROLL_SLIDER_PADDING), (float)scrollbar.y + (int)(((float)(value - minValue)/range)*(scrollbar.height - sliderSize)), (float)bounds.width - 2*(GuiGetStyle(SCROLLBAR, BORDER_WIDTH) + GuiGetStyle(SCROLLBAR, SCROLL_SLIDER_PADDING)), (float)sliderSize }; + } + else + { + arrowDownRight = RAYGUI_CLITERAL(Rectangle){ (float)bounds.x + bounds.width - spinnerSize - GuiGetStyle(SCROLLBAR, BORDER_WIDTH), (float)bounds.y + GuiGetStyle(SCROLLBAR, BORDER_WIDTH), (float)spinnerSize, (float)spinnerSize}; + scrollbar = RAYGUI_CLITERAL(Rectangle){ arrowUpLeft.x + arrowUpLeft.width, bounds.y + GuiGetStyle(SCROLLBAR, BORDER_WIDTH) + GuiGetStyle(SCROLLBAR, SCROLL_PADDING), bounds.width - arrowUpLeft.width - arrowDownRight.width - 2*GuiGetStyle(SCROLLBAR, BORDER_WIDTH), bounds.height - 2*(GuiGetStyle(SCROLLBAR, BORDER_WIDTH) + GuiGetStyle(SCROLLBAR, SCROLL_PADDING))}; + sliderSize = (sliderSize >= scrollbar.width)? ((int)scrollbar.width - 2) : sliderSize; // Make sure the slider won't get outside of the scrollbar + slider = RAYGUI_CLITERAL(Rectangle){ (float)scrollbar.x + (int)(((float)(value - minValue)/range)*(scrollbar.width - sliderSize)), (float)bounds.y + GuiGetStyle(SCROLLBAR, BORDER_WIDTH) + GuiGetStyle(SCROLLBAR, SCROLL_SLIDER_PADDING), (float)sliderSize, (float)bounds.height - 2*(GuiGetStyle(SCROLLBAR, BORDER_WIDTH) + GuiGetStyle(SCROLLBAR, SCROLL_SLIDER_PADDING)) }; + } + + // Update control + //-------------------------------------------------------------------- + if ((state != GUI_STATE_DISABLED) && !guiLocked) + { + Vector2 mousePoint = GetMousePosition(); + + if (CheckCollisionPointRec(mousePoint, bounds)) + { + state = GUI_STATE_FOCUSED; + + // Handle mouse wheel + int wheel = (int)GetMouseWheelMove(); + if (wheel != 0) value += wheel; + + if (IsMouseButtonPressed(MOUSE_LEFT_BUTTON)) + { + if (CheckCollisionPointRec(mousePoint, arrowUpLeft)) value -= range/GuiGetStyle(SCROLLBAR, SCROLL_SPEED); + else if (CheckCollisionPointRec(mousePoint, arrowDownRight)) value += range/GuiGetStyle(SCROLLBAR, SCROLL_SPEED); + + state = GUI_STATE_PRESSED; + } + else if (IsMouseButtonDown(MOUSE_LEFT_BUTTON)) + { + if (!isVertical) + { + Rectangle scrollArea = { arrowUpLeft.x + arrowUpLeft.width, arrowUpLeft.y, scrollbar.width, bounds.height - 2*GuiGetStyle(SCROLLBAR, BORDER_WIDTH)}; + if (CheckCollisionPointRec(mousePoint, scrollArea)) value = (int)(((float)(mousePoint.x - scrollArea.x - slider.width/2)*range)/(scrollArea.width - slider.width) + minValue); + } + else + { + Rectangle scrollArea = { arrowUpLeft.x, arrowUpLeft.y+arrowUpLeft.height, bounds.width - 2*GuiGetStyle(SCROLLBAR, BORDER_WIDTH), scrollbar.height}; + if (CheckCollisionPointRec(mousePoint, scrollArea)) value = (int)(((float)(mousePoint.y - scrollArea.y - slider.height/2)*range)/(scrollArea.height - slider.height) + minValue); + } + } + } + + // Normalize value + if (value > maxValue) value = maxValue; + if (value < minValue) value = minValue; + } + //-------------------------------------------------------------------- + + // Draw control + //-------------------------------------------------------------------- + GuiDrawRectangle(bounds, GuiGetStyle(SCROLLBAR, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(LISTVIEW, BORDER + state*3)), guiAlpha), Fade(GetColor(GuiGetStyle(DEFAULT, BORDER_COLOR_DISABLED)), guiAlpha)); // Draw the background + + GuiDrawRectangle(scrollbar, 0, BLANK, Fade(GetColor(GuiGetStyle(BUTTON, BASE_COLOR_NORMAL)), guiAlpha)); // Draw the scrollbar active area background + GuiDrawRectangle(slider, 0, BLANK, Fade(GetColor(GuiGetStyle(SLIDER, BORDER + state*3)), guiAlpha)); // Draw the slider bar + + // Draw arrows (using icon if available) + if (GuiGetStyle(SCROLLBAR, ARROWS_VISIBLE)) + { +#if defined(RAYGUI_NO_RICONS) + GuiDrawText(isVertical? "^" : "<", RAYGUI_CLITERAL(Rectangle){ arrowUpLeft.x, arrowUpLeft.y, isVertical? bounds.width : bounds.height, isVertical? bounds.width : bounds.height }, + GUI_TEXT_ALIGN_CENTER, Fade(GetColor(GuiGetStyle(DROPDOWNBOX, TEXT + (state*3))), guiAlpha)); + GuiDrawText(isVertical? "v" : ">", RAYGUI_CLITERAL(Rectangle){ arrowDownRight.x, arrowDownRight.y, isVertical? bounds.width : bounds.height, isVertical? bounds.width : bounds.height }, + GUI_TEXT_ALIGN_CENTER, Fade(GetColor(GuiGetStyle(DROPDOWNBOX, TEXT + (state*3))), guiAlpha)); +#else + GuiDrawText(isVertical? "#121#" : "#118#", RAYGUI_CLITERAL(Rectangle){ arrowUpLeft.x, arrowUpLeft.y, isVertical? bounds.width : bounds.height, isVertical? bounds.width : bounds.height }, + GUI_TEXT_ALIGN_CENTER, Fade(GetColor(GuiGetStyle(SCROLLBAR, TEXT + state*3)), guiAlpha)); // RICON_ARROW_UP_FILL / RICON_ARROW_LEFT_FILL + GuiDrawText(isVertical? "#120#" : "#119#", RAYGUI_CLITERAL(Rectangle){ arrowDownRight.x, arrowDownRight.y, isVertical? bounds.width : bounds.height, isVertical? bounds.width : bounds.height }, + GUI_TEXT_ALIGN_CENTER, Fade(GetColor(GuiGetStyle(SCROLLBAR, TEXT + state*3)), guiAlpha)); // RICON_ARROW_DOWN_FILL / RICON_ARROW_RIGHT_FILL +#endif + } + //-------------------------------------------------------------------- + + return value; +} + +// List View control +int GuiListView(Rectangle bounds, const char *text, int *scrollIndex, int active) +{ + int itemCount = 0; + const char **items = NULL; + + if (text != NULL) items = GuiTextSplit(text, &itemCount, NULL); + + return GuiListViewEx(bounds, items, itemCount, NULL, scrollIndex, active); +} + +// List View control with extended parameters +int GuiListViewEx(Rectangle bounds, const char **text, int count, int *focus, int *scrollIndex, int active) +{ + GuiControlState state = guiState; + int itemFocused = (focus == NULL)? -1 : *focus; + int itemSelected = active; + + // Check if we need a scroll bar + bool useScrollBar = false; + if ((GuiGetStyle(LISTVIEW, LIST_ITEMS_HEIGHT) + GuiGetStyle(LISTVIEW, LIST_ITEMS_PADDING))*count > bounds.height) useScrollBar = true; + + // Define base item rectangle [0] + Rectangle itemBounds = { 0 }; + itemBounds.x = bounds.x + GuiGetStyle(LISTVIEW, LIST_ITEMS_PADDING); + itemBounds.y = bounds.y + GuiGetStyle(LISTVIEW, LIST_ITEMS_PADDING) + GuiGetStyle(DEFAULT, BORDER_WIDTH); + itemBounds.width = bounds.width - 2*GuiGetStyle(LISTVIEW, LIST_ITEMS_PADDING) - GuiGetStyle(DEFAULT, BORDER_WIDTH); + itemBounds.height = (float)GuiGetStyle(LISTVIEW, LIST_ITEMS_HEIGHT); + if (useScrollBar) itemBounds.width -= GuiGetStyle(LISTVIEW, SCROLLBAR_WIDTH); + + // Get items on the list + int visibleItems = (int)bounds.height/(GuiGetStyle(LISTVIEW, LIST_ITEMS_HEIGHT) + GuiGetStyle(LISTVIEW, LIST_ITEMS_PADDING)); + if (visibleItems > count) visibleItems = count; + + int startIndex = (scrollIndex == NULL)? 0 : *scrollIndex; + if ((startIndex < 0) || (startIndex > (count - visibleItems))) startIndex = 0; + int endIndex = startIndex + visibleItems; + + // Update control + //-------------------------------------------------------------------- + if ((state != GUI_STATE_DISABLED) && !guiLocked) + { + Vector2 mousePoint = GetMousePosition(); + + // Check mouse inside list view + if (CheckCollisionPointRec(mousePoint, bounds)) + { + state = GUI_STATE_FOCUSED; + + // Check focused and selected item + for (int i = 0; i < visibleItems; i++) + { + if (CheckCollisionPointRec(mousePoint, itemBounds)) + { + itemFocused = startIndex + i; + if (IsMouseButtonPressed(MOUSE_LEFT_BUTTON)) + { + if (itemSelected == (startIndex + i)) itemSelected = -1; + else itemSelected = startIndex + i; + } + break; + } + + // Update item rectangle y position for next item + itemBounds.y += (GuiGetStyle(LISTVIEW, LIST_ITEMS_HEIGHT) + GuiGetStyle(LISTVIEW, LIST_ITEMS_PADDING)); + } + + if (useScrollBar) + { + int wheelMove = (int)GetMouseWheelMove(); + startIndex -= wheelMove; + + if (startIndex < 0) startIndex = 0; + else if (startIndex > (count - visibleItems)) startIndex = count - visibleItems; + + endIndex = startIndex + visibleItems; + if (endIndex > count) endIndex = count; + } + } + else itemFocused = -1; + + // Reset item rectangle y to [0] + itemBounds.y = bounds.y + GuiGetStyle(LISTVIEW, LIST_ITEMS_PADDING) + GuiGetStyle(DEFAULT, BORDER_WIDTH); + } + //-------------------------------------------------------------------- + + // Draw control + //-------------------------------------------------------------------- + GuiDrawRectangle(bounds, GuiGetStyle(DEFAULT, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(LISTVIEW, BORDER + state*3)), guiAlpha), GetColor(GuiGetStyle(DEFAULT, BACKGROUND_COLOR))); // Draw background + + // Draw visible items + for (int i = 0; ((i < visibleItems) && (text != NULL)); i++) + { + if (state == GUI_STATE_DISABLED) + { + if ((startIndex + i) == itemSelected) GuiDrawRectangle(itemBounds, GuiGetStyle(LISTVIEW, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(LISTVIEW, BORDER_COLOR_DISABLED)), guiAlpha), Fade(GetColor(GuiGetStyle(LISTVIEW, BASE_COLOR_DISABLED)), guiAlpha)); + + GuiDrawText(text[startIndex + i], GetTextBounds(DEFAULT, itemBounds), GuiGetStyle(LISTVIEW, TEXT_ALIGNMENT), Fade(GetColor(GuiGetStyle(LISTVIEW, TEXT_COLOR_DISABLED)), guiAlpha)); + } + else + { + if ((startIndex + i) == itemSelected) + { + // Draw item selected + GuiDrawRectangle(itemBounds, GuiGetStyle(LISTVIEW, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(LISTVIEW, BORDER_COLOR_PRESSED)), guiAlpha), Fade(GetColor(GuiGetStyle(LISTVIEW, BASE_COLOR_PRESSED)), guiAlpha)); + GuiDrawText(text[startIndex + i], GetTextBounds(DEFAULT, itemBounds), GuiGetStyle(LISTVIEW, TEXT_ALIGNMENT), Fade(GetColor(GuiGetStyle(LISTVIEW, TEXT_COLOR_PRESSED)), guiAlpha)); + } + else if ((startIndex + i) == itemFocused) + { + // Draw item focused + GuiDrawRectangle(itemBounds, GuiGetStyle(LISTVIEW, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(LISTVIEW, BORDER_COLOR_FOCUSED)), guiAlpha), Fade(GetColor(GuiGetStyle(LISTVIEW, BASE_COLOR_FOCUSED)), guiAlpha)); + GuiDrawText(text[startIndex + i], GetTextBounds(DEFAULT, itemBounds), GuiGetStyle(LISTVIEW, TEXT_ALIGNMENT), Fade(GetColor(GuiGetStyle(LISTVIEW, TEXT_COLOR_FOCUSED)), guiAlpha)); + } + else + { + // Draw item normal + GuiDrawText(text[startIndex + i], GetTextBounds(DEFAULT, itemBounds), GuiGetStyle(LISTVIEW, TEXT_ALIGNMENT), Fade(GetColor(GuiGetStyle(LISTVIEW, TEXT_COLOR_NORMAL)), guiAlpha)); + } + } + + // Update item rectangle y position for next item + itemBounds.y += (GuiGetStyle(LISTVIEW, LIST_ITEMS_HEIGHT) + GuiGetStyle(LISTVIEW, LIST_ITEMS_PADDING)); + } + + if (useScrollBar) + { + Rectangle scrollBarBounds = { + bounds.x + bounds.width - GuiGetStyle(LISTVIEW, BORDER_WIDTH) - GuiGetStyle(LISTVIEW, SCROLLBAR_WIDTH), + bounds.y + GuiGetStyle(LISTVIEW, BORDER_WIDTH), (float)GuiGetStyle(LISTVIEW, SCROLLBAR_WIDTH), + bounds.height - 2*GuiGetStyle(DEFAULT, BORDER_WIDTH) + }; + + // Calculate percentage of visible items and apply same percentage to scrollbar + float percentVisible = (float)(endIndex - startIndex)/count; + float sliderSize = bounds.height*percentVisible; + + int prevSliderSize = GuiGetStyle(SCROLLBAR, SCROLL_SLIDER_SIZE); // Save default slider size + int prevScrollSpeed = GuiGetStyle(SCROLLBAR, SCROLL_SPEED); // Save default scroll speed + GuiSetStyle(SCROLLBAR, SCROLL_SLIDER_SIZE, (int)sliderSize); // Change slider size + GuiSetStyle(SCROLLBAR, SCROLL_SPEED, count - visibleItems); // Change scroll speed + + startIndex = GuiScrollBar(scrollBarBounds, startIndex, 0, count - visibleItems); + + GuiSetStyle(SCROLLBAR, SCROLL_SPEED, prevScrollSpeed); // Reset scroll speed to default + GuiSetStyle(SCROLLBAR, SCROLL_SLIDER_SIZE, prevSliderSize); // Reset slider size to default + } + //-------------------------------------------------------------------- + + if (focus != NULL) *focus = itemFocused; + if (scrollIndex != NULL) *scrollIndex = startIndex; + + return itemSelected; +} + +// Color Panel control +Color GuiColorPanel(Rectangle bounds, Color color) +{ + const Color colWhite = { 255, 255, 255, 255 }; + const Color colBlack = { 0, 0, 0, 255 }; + + GuiControlState state = guiState; + Vector2 pickerSelector = { 0 }; + + Vector3 vcolor = { (float)color.r/255.0f, (float)color.g/255.0f, (float)color.b/255.0f }; + Vector3 hsv = ConvertRGBtoHSV(vcolor); + + pickerSelector.x = bounds.x + (float)hsv.y*bounds.width; // HSV: Saturation + pickerSelector.y = bounds.y + (1.0f - (float)hsv.z)*bounds.height; // HSV: Value + + float hue = -1.0f; + Vector3 maxHue = { hue >= 0.0f ? hue : hsv.x, 1.0f, 1.0f }; + Vector3 rgbHue = ConvertHSVtoRGB(maxHue); + Color maxHueCol = { (unsigned char)(255.0f*rgbHue.x), + (unsigned char)(255.0f*rgbHue.y), + (unsigned char)(255.0f*rgbHue.z), 255 }; + + // Update control + //-------------------------------------------------------------------- + if ((state != GUI_STATE_DISABLED) && !guiLocked) + { + Vector2 mousePoint = GetMousePosition(); + + if (CheckCollisionPointRec(mousePoint, bounds)) + { + if (IsMouseButtonDown(MOUSE_LEFT_BUTTON)) + { + state = GUI_STATE_PRESSED; + pickerSelector = mousePoint; + + // Calculate color from picker + Vector2 colorPick = { pickerSelector.x - bounds.x, pickerSelector.y - bounds.y }; + + colorPick.x /= (float)bounds.width; // Get normalized value on x + colorPick.y /= (float)bounds.height; // Get normalized value on y + + hsv.y = colorPick.x; + hsv.z = 1.0f - colorPick.y; + + Vector3 rgb = ConvertHSVtoRGB(hsv); + + // NOTE: Vector3ToColor() only available on raylib 1.8.1 + color = RAYGUI_CLITERAL(Color){ (unsigned char)(255.0f*rgb.x), + (unsigned char)(255.0f*rgb.y), + (unsigned char)(255.0f*rgb.z), + (unsigned char)(255.0f*(float)color.a/255.0f) }; + + } + else state = GUI_STATE_FOCUSED; + } + } + //-------------------------------------------------------------------- + + // Draw control + //-------------------------------------------------------------------- + if (state != GUI_STATE_DISABLED) + { + DrawRectangleGradientEx(bounds, Fade(colWhite, guiAlpha), Fade(colWhite, guiAlpha), Fade(maxHueCol, guiAlpha), Fade(maxHueCol, guiAlpha)); + DrawRectangleGradientEx(bounds, Fade(colBlack, 0), Fade(colBlack, guiAlpha), Fade(colBlack, guiAlpha), Fade(colBlack, 0)); + + // Draw color picker: selector + Rectangle selector = { pickerSelector.x - GuiGetStyle(COLORPICKER, COLOR_SELECTOR_SIZE)/2, pickerSelector.y - GuiGetStyle(COLORPICKER, COLOR_SELECTOR_SIZE)/2, (float)GuiGetStyle(COLORPICKER, COLOR_SELECTOR_SIZE), (float)GuiGetStyle(COLORPICKER, COLOR_SELECTOR_SIZE) }; + GuiDrawRectangle(selector, 0, BLANK, Fade(colWhite, guiAlpha)); + } + else + { + DrawRectangleGradientEx(bounds, Fade(Fade(GetColor(GuiGetStyle(COLORPICKER, BASE_COLOR_DISABLED)), 0.1f), guiAlpha), Fade(Fade(colBlack, 0.6f), guiAlpha), Fade(Fade(colBlack, 0.6f), guiAlpha), Fade(Fade(GetColor(GuiGetStyle(COLORPICKER, BORDER_COLOR_DISABLED)), 0.6f), guiAlpha)); + } + + GuiDrawRectangle(bounds, GuiGetStyle(COLORPICKER, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(COLORPICKER, BORDER + state*3)), guiAlpha), BLANK); + //-------------------------------------------------------------------- + + return color; +} + +// Color Bar Alpha control +// NOTE: Returns alpha value normalized [0..1] +float GuiColorBarAlpha(Rectangle bounds, float alpha) +{ + #define COLORBARALPHA_CHECKED_SIZE 10 + + GuiControlState state = guiState; + Rectangle selector = { (float)bounds.x + alpha*bounds.width - GuiGetStyle(COLORPICKER, HUEBAR_SELECTOR_HEIGHT)/2, (float)bounds.y - GuiGetStyle(COLORPICKER, HUEBAR_SELECTOR_OVERFLOW), (float)GuiGetStyle(COLORPICKER, HUEBAR_SELECTOR_HEIGHT), (float)bounds.height + GuiGetStyle(COLORPICKER, HUEBAR_SELECTOR_OVERFLOW)*2 }; + + // Update control + //-------------------------------------------------------------------- + if ((state != GUI_STATE_DISABLED) && !guiLocked) + { + Vector2 mousePoint = GetMousePosition(); + + if (CheckCollisionPointRec(mousePoint, bounds) || + CheckCollisionPointRec(mousePoint, selector)) + { + if (IsMouseButtonDown(MOUSE_LEFT_BUTTON)) + { + state = GUI_STATE_PRESSED; + + alpha = (mousePoint.x - bounds.x)/bounds.width; + if (alpha <= 0.0f) alpha = 0.0f; + if (alpha >= 1.0f) alpha = 1.0f; + //selector.x = bounds.x + (int)(((alpha - 0)/(100 - 0))*(bounds.width - 2*GuiGetStyle(SLIDER, BORDER_WIDTH))) - selector.width/2; + } + else state = GUI_STATE_FOCUSED; + } + } + //-------------------------------------------------------------------- + + // Draw control + //-------------------------------------------------------------------- + + // Draw alpha bar: checked background + if (state != GUI_STATE_DISABLED) + { + int checksX = (int)bounds.width/COLORBARALPHA_CHECKED_SIZE; + int checksY = (int)bounds.height/COLORBARALPHA_CHECKED_SIZE; + + for (int x = 0; x < checksX; x++) + { + for (int y = 0; y < checksY; y++) + { + Rectangle check = { bounds.x + x*COLORBARALPHA_CHECKED_SIZE, bounds.y + y*COLORBARALPHA_CHECKED_SIZE, COLORBARALPHA_CHECKED_SIZE, COLORBARALPHA_CHECKED_SIZE }; + GuiDrawRectangle(check, 0, BLANK, ((x + y)%2)? Fade(Fade(GetColor(GuiGetStyle(COLORPICKER, BORDER_COLOR_DISABLED)), 0.4f), guiAlpha) : Fade(Fade(GetColor(GuiGetStyle(COLORPICKER, BASE_COLOR_DISABLED)), 0.4f), guiAlpha)); + } + } + + DrawRectangleGradientEx(bounds, RAYGUI_CLITERAL(Color){ 255, 255, 255, 0 }, RAYGUI_CLITERAL(Color){ 255, 255, 255, 0 }, Fade(RAYGUI_CLITERAL(Color){ 0, 0, 0, 255 }, guiAlpha), Fade(RAYGUI_CLITERAL(Color){ 0, 0, 0, 255 }, guiAlpha)); + } + else DrawRectangleGradientEx(bounds, Fade(GetColor(GuiGetStyle(COLORPICKER, BASE_COLOR_DISABLED)), 0.1f), Fade(GetColor(GuiGetStyle(COLORPICKER, BASE_COLOR_DISABLED)), 0.1f), Fade(GetColor(GuiGetStyle(COLORPICKER, BORDER_COLOR_DISABLED)), guiAlpha), Fade(GetColor(GuiGetStyle(COLORPICKER, BORDER_COLOR_DISABLED)), guiAlpha)); + + GuiDrawRectangle(bounds, GuiGetStyle(COLORPICKER, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(COLORPICKER, BORDER + state*3)), guiAlpha), BLANK); + + // Draw alpha bar: selector + GuiDrawRectangle(selector, 0, BLANK, Fade(GetColor(GuiGetStyle(COLORPICKER, BORDER + state*3)), guiAlpha)); + //-------------------------------------------------------------------- + + return alpha; +} + +// Color Bar Hue control +// Returns hue value normalized [0..1] +// NOTE: Other similar bars (for reference): +// Color GuiColorBarSat() [WHITE->color] +// Color GuiColorBarValue() [BLACK->color], HSV/HSL +// float GuiColorBarLuminance() [BLACK->WHITE] +float GuiColorBarHue(Rectangle bounds, float hue) +{ + GuiControlState state = guiState; + Rectangle selector = { (float)bounds.x - GuiGetStyle(COLORPICKER, HUEBAR_SELECTOR_OVERFLOW), (float)bounds.y + hue/360.0f*bounds.height - GuiGetStyle(COLORPICKER, HUEBAR_SELECTOR_HEIGHT)/2, (float)bounds.width + GuiGetStyle(COLORPICKER, HUEBAR_SELECTOR_OVERFLOW)*2, (float)GuiGetStyle(COLORPICKER, HUEBAR_SELECTOR_HEIGHT) }; + + // Update control + //-------------------------------------------------------------------- + if ((state != GUI_STATE_DISABLED) && !guiLocked) + { + Vector2 mousePoint = GetMousePosition(); + + if (CheckCollisionPointRec(mousePoint, bounds) || + CheckCollisionPointRec(mousePoint, selector)) + { + if (IsMouseButtonDown(MOUSE_LEFT_BUTTON)) + { + state = GUI_STATE_PRESSED; + + hue = (mousePoint.y - bounds.y)*360/bounds.height; + if (hue <= 0.0f) hue = 0.0f; + if (hue >= 359.0f) hue = 359.0f; + + } + else state = GUI_STATE_FOCUSED; + + /*if (IsKeyDown(KEY_UP)) + { + hue -= 2.0f; + if (hue <= 0.0f) hue = 0.0f; + } + else if (IsKeyDown(KEY_DOWN)) + { + hue += 2.0f; + if (hue >= 360.0f) hue = 360.0f; + }*/ + } + } + //-------------------------------------------------------------------- + + // Draw control + //-------------------------------------------------------------------- + if (state != GUI_STATE_DISABLED) + { + // Draw hue bar:color bars + DrawRectangleGradientV((int)bounds.x, (int)(bounds.y), (int)bounds.width, ceil(bounds.height/6), Fade(RAYGUI_CLITERAL(Color) { 255, 0, 0, 255 }, guiAlpha), Fade(RAYGUI_CLITERAL(Color) { 255, 255, 0, 255 }, guiAlpha)); + DrawRectangleGradientV((int)bounds.x, (int)(bounds.y + bounds.height/6), (int)bounds.width, ceil(bounds.height/6), Fade(RAYGUI_CLITERAL(Color) { 255, 255, 0, 255 }, guiAlpha), Fade(RAYGUI_CLITERAL(Color) { 0, 255, 0, 255 }, guiAlpha)); + DrawRectangleGradientV((int)bounds.x, (int)(bounds.y + 2*(bounds.height/6)), (int)bounds.width, ceil(bounds.height/6), Fade(RAYGUI_CLITERAL(Color) { 0, 255, 0, 255 }, guiAlpha), Fade(RAYGUI_CLITERAL(Color) { 0, 255, 255, 255 }, guiAlpha)); + DrawRectangleGradientV((int)bounds.x, (int)(bounds.y + 3*(bounds.height/6)), (int)bounds.width, ceil(bounds.height/6), Fade(RAYGUI_CLITERAL(Color) { 0, 255, 255, 255 }, guiAlpha), Fade(RAYGUI_CLITERAL(Color) { 0, 0, 255, 255 }, guiAlpha)); + DrawRectangleGradientV((int)bounds.x, (int)(bounds.y + 4*(bounds.height/6)), (int)bounds.width, ceil(bounds.height/6), Fade(RAYGUI_CLITERAL(Color) { 0, 0, 255, 255 }, guiAlpha), Fade(RAYGUI_CLITERAL(Color) { 255, 0, 255, 255 }, guiAlpha)); + DrawRectangleGradientV((int)bounds.x, (int)(bounds.y + 5*(bounds.height/6)), (int)bounds.width, (int)(bounds.height/6), Fade(RAYGUI_CLITERAL(Color) { 255, 0, 255, 255 }, guiAlpha), Fade(RAYGUI_CLITERAL(Color) { 255, 0, 0, 255 }, guiAlpha)); + } + else DrawRectangleGradientV((int)bounds.x, (int)bounds.y, (int)bounds.width, (int)bounds.height, Fade(Fade(GetColor(GuiGetStyle(COLORPICKER, BASE_COLOR_DISABLED)), 0.1f), guiAlpha), Fade(GetColor(GuiGetStyle(COLORPICKER, BORDER_COLOR_DISABLED)), guiAlpha)); + + GuiDrawRectangle(bounds, GuiGetStyle(COLORPICKER, BORDER_WIDTH), Fade(GetColor(GuiGetStyle(COLORPICKER, BORDER + state*3)), guiAlpha), BLANK); + + // Draw hue bar: selector + GuiDrawRectangle(selector, 0, BLANK, Fade(GetColor(GuiGetStyle(COLORPICKER, BORDER + state*3)), guiAlpha)); + //-------------------------------------------------------------------- + + return hue; +} + +// Color Picker control +// NOTE: It's divided in multiple controls: +// Color GuiColorPanel(Rectangle bounds, Color color) +// float GuiColorBarAlpha(Rectangle bounds, float alpha) +// float GuiColorBarHue(Rectangle bounds, float value) +// NOTE: bounds define GuiColorPanel() size +Color GuiColorPicker(Rectangle bounds, Color color) +{ + color = GuiColorPanel(bounds, color); + + Rectangle boundsHue = { (float)bounds.x + bounds.width + GuiGetStyle(COLORPICKER, HUEBAR_PADDING), (float)bounds.y, (float)GuiGetStyle(COLORPICKER, HUEBAR_WIDTH), (float)bounds.height }; + //Rectangle boundsAlpha = { bounds.x, bounds.y + bounds.height + GuiGetStyle(COLORPICKER, BARS_PADDING), bounds.width, GuiGetStyle(COLORPICKER, BARS_THICK) }; + + Vector3 hsv = ConvertRGBtoHSV(RAYGUI_CLITERAL(Vector3){ color.r/255.0f, color.g/255.0f, color.b/255.0f }); + hsv.x = GuiColorBarHue(boundsHue, hsv.x); + //color.a = (unsigned char)(GuiColorBarAlpha(boundsAlpha, (float)color.a/255.0f)*255.0f); + Vector3 rgb = ConvertHSVtoRGB(hsv); + + color = RAYGUI_CLITERAL(Color){ (unsigned char)roundf(rgb.x*255.0f), (unsigned char)roundf(rgb.y*255.0f), (unsigned char)roundf(rgb.z*255.0f), color.a }; + + return color; +} + +// Message Box control +int GuiMessageBox(Rectangle bounds, const char *title, const char *message, const char *buttons) +{ + #define MESSAGEBOX_BUTTON_HEIGHT 24 + #define MESSAGEBOX_BUTTON_PADDING 10 + + int clicked = -1; // Returns clicked button from buttons list, 0 refers to closed window button + + int buttonCount = 0; + const char **buttonsText = GuiTextSplit(buttons, &buttonCount, NULL); + Rectangle buttonBounds = { 0 }; + buttonBounds.x = bounds.x + MESSAGEBOX_BUTTON_PADDING; + buttonBounds.y = bounds.y + bounds.height - MESSAGEBOX_BUTTON_HEIGHT - MESSAGEBOX_BUTTON_PADDING; + buttonBounds.width = (bounds.width - MESSAGEBOX_BUTTON_PADDING*(buttonCount + 1))/buttonCount; + buttonBounds.height = MESSAGEBOX_BUTTON_HEIGHT; + + Vector2 textSize = MeasureTextEx(guiFont, message, (float)GuiGetStyle(DEFAULT, TEXT_SIZE), 1); + + Rectangle textBounds = { 0 }; + textBounds.x = bounds.x + bounds.width/2 - textSize.x/2; + textBounds.y = bounds.y + WINDOW_STATUSBAR_HEIGHT + (bounds.height - WINDOW_STATUSBAR_HEIGHT - MESSAGEBOX_BUTTON_HEIGHT - MESSAGEBOX_BUTTON_PADDING)/2 - textSize.y/2; + textBounds.width = textSize.x; + textBounds.height = textSize.y; + + // Draw control + //-------------------------------------------------------------------- + if (GuiWindowBox(bounds, title)) clicked = 0; + + int prevTextAlignment = GuiGetStyle(LABEL, TEXT_ALIGNMENT); + GuiSetStyle(LABEL, TEXT_ALIGNMENT, GUI_TEXT_ALIGN_CENTER); + GuiLabel(textBounds, message); + GuiSetStyle(LABEL, TEXT_ALIGNMENT, prevTextAlignment); + + prevTextAlignment = GuiGetStyle(BUTTON, TEXT_ALIGNMENT); + GuiSetStyle(BUTTON, TEXT_ALIGNMENT, GUI_TEXT_ALIGN_CENTER); + + for (int i = 0; i < buttonCount; i++) + { + if (GuiButton(buttonBounds, buttonsText[i])) clicked = i + 1; + buttonBounds.x += (buttonBounds.width + MESSAGEBOX_BUTTON_PADDING); + } + + GuiSetStyle(BUTTON, TEXT_ALIGNMENT, prevTextAlignment); + //-------------------------------------------------------------------- + + return clicked; +} + +// Text Input Box control, ask for text +int GuiTextInputBox(Rectangle bounds, const char *title, const char *message, const char *buttons, char *text) +{ + #define TEXTINPUTBOX_BUTTON_HEIGHT 24 + #define TEXTINPUTBOX_BUTTON_PADDING 10 + #define TEXTINPUTBOX_HEIGHT 30 + + #define TEXTINPUTBOX_MAX_TEXT_LENGTH 256 + + // Used to enable text edit mode + // WARNING: No more than one GuiTextInputBox() should be open at the same time + static bool textEditMode = false; + + int btnIndex = -1; + + int buttonCount = 0; + const char **buttonsText = GuiTextSplit(buttons, &buttonCount, NULL); + Rectangle buttonBounds = { 0 }; + buttonBounds.x = bounds.x + TEXTINPUTBOX_BUTTON_PADDING; + buttonBounds.y = bounds.y + bounds.height - TEXTINPUTBOX_BUTTON_HEIGHT - TEXTINPUTBOX_BUTTON_PADDING; + buttonBounds.width = (bounds.width - TEXTINPUTBOX_BUTTON_PADDING*(buttonCount + 1))/buttonCount; + buttonBounds.height = TEXTINPUTBOX_BUTTON_HEIGHT; + + int messageInputHeight = (int)bounds.height - WINDOW_STATUSBAR_HEIGHT - GuiGetStyle(STATUSBAR, BORDER_WIDTH) - TEXTINPUTBOX_BUTTON_HEIGHT - 2*TEXTINPUTBOX_BUTTON_PADDING; + + Rectangle textBounds = { 0 }; + if (message != NULL) + { + Vector2 textSize = MeasureTextEx(guiFont, message, (float)GuiGetStyle(DEFAULT, TEXT_SIZE), 1); + + textBounds.x = bounds.x + bounds.width/2 - textSize.x/2; + textBounds.y = bounds.y + WINDOW_STATUSBAR_HEIGHT + messageInputHeight/4 - textSize.y/2; + textBounds.width = textSize.x; + textBounds.height = textSize.y; + } + + Rectangle textBoxBounds = { 0 }; + textBoxBounds.x = bounds.x + TEXTINPUTBOX_BUTTON_PADDING; + textBoxBounds.y = bounds.y + WINDOW_STATUSBAR_HEIGHT - TEXTINPUTBOX_HEIGHT/2; + if (message == NULL) textBoxBounds.y += messageInputHeight/2; + else textBoxBounds.y += (messageInputHeight/2 + messageInputHeight/4); + textBoxBounds.width = bounds.width - TEXTINPUTBOX_BUTTON_PADDING*2; + textBoxBounds.height = TEXTINPUTBOX_HEIGHT; + + // Draw control + //-------------------------------------------------------------------- + if (GuiWindowBox(bounds, title)) btnIndex = 0; + + // Draw message if available + if (message != NULL) + { + int prevTextAlignment = GuiGetStyle(LABEL, TEXT_ALIGNMENT); + GuiSetStyle(LABEL, TEXT_ALIGNMENT, GUI_TEXT_ALIGN_CENTER); + GuiLabel(textBounds, message); + GuiSetStyle(LABEL, TEXT_ALIGNMENT, prevTextAlignment); + } + + if (GuiTextBox(textBoxBounds, text, TEXTINPUTBOX_MAX_TEXT_LENGTH, textEditMode)) textEditMode = !textEditMode; + + int prevBtnTextAlignment = GuiGetStyle(BUTTON, TEXT_ALIGNMENT); + GuiSetStyle(BUTTON, TEXT_ALIGNMENT, GUI_TEXT_ALIGN_CENTER); + + for (int i = 0; i < buttonCount; i++) + { + if (GuiButton(buttonBounds, buttonsText[i])) btnIndex = i + 1; + buttonBounds.x += (buttonBounds.width + MESSAGEBOX_BUTTON_PADDING); + } + + GuiSetStyle(BUTTON, TEXT_ALIGNMENT, prevBtnTextAlignment); + //-------------------------------------------------------------------- + + return btnIndex; +} + +// Grid control +// NOTE: Returns grid mouse-hover selected cell +// About drawing lines at subpixel spacing, simple put, not easy solution: +// https://stackoverflow.com/questions/4435450/2d-opengl-drawing-lines-that-dont-exactly-fit-pixel-raster +Vector2 GuiGrid(Rectangle bounds, float spacing, int subdivs) +{ + #if !defined(GRID_COLOR_ALPHA) + #define GRID_COLOR_ALPHA 0.15f // Grid lines alpha amount + #endif + + GuiControlState state = guiState; + Vector2 mousePoint = GetMousePosition(); + Vector2 currentCell = { -1, -1 }; + + int linesV = ((int)(bounds.width/spacing))*subdivs + 1; + int linesH = ((int)(bounds.height/spacing))*subdivs + 1; + + // Update control + //-------------------------------------------------------------------- + if ((state != GUI_STATE_DISABLED) && !guiLocked) + { + if (CheckCollisionPointRec(mousePoint, bounds)) + { + currentCell.x = (mousePoint.x - bounds.x)/spacing; + currentCell.y = (mousePoint.y - bounds.y)/spacing; + } + } + //-------------------------------------------------------------------- + + // Draw control + //-------------------------------------------------------------------- + switch (state) + { + case GUI_STATE_NORMAL: + { + if (subdivs > 0) + { + // Draw vertical grid lines + for (int i = 0; i < linesV; i++) + { + Rectangle lineV = { bounds.x + spacing*i/subdivs, bounds.y, 1, bounds.height }; + GuiDrawRectangle(lineV, 0, BLANK, ((i%subdivs) == 0) ? Fade(GetColor(GuiGetStyle(DEFAULT, LINE_COLOR)), GRID_COLOR_ALPHA*4) : Fade(GetColor(GuiGetStyle(DEFAULT, LINE_COLOR)), GRID_COLOR_ALPHA)); + } + + // Draw horizontal grid lines + for (int i = 0; i < linesH; i++) + { + Rectangle lineH = { bounds.x, bounds.y + spacing*i/subdivs, bounds.width, 1 }; + GuiDrawRectangle(lineH, 0, BLANK, ((i%subdivs) == 0) ? Fade(GetColor(GuiGetStyle(DEFAULT, LINE_COLOR)), GRID_COLOR_ALPHA*4) : Fade(GetColor(GuiGetStyle(DEFAULT, LINE_COLOR)), GRID_COLOR_ALPHA)); + } + } + } break; + default: break; + } + + return currentCell; +} + +//---------------------------------------------------------------------------------- +// Styles loading functions +//---------------------------------------------------------------------------------- + +// Load raygui style file (.rgs) +void GuiLoadStyle(const char *fileName) +{ + bool tryBinary = false; + + // Try reading the files as text file first + FILE *rgsFile = fopen(fileName, "rt"); + + if (rgsFile != NULL) + { + char buffer[256] = { 0 }; + fgets(buffer, 256, rgsFile); + + if (buffer[0] == '#') + { + int controlId = 0; + int propertyId = 0; + unsigned int propertyValue = 0; + + while (!feof(rgsFile)) + { + switch (buffer[0]) + { + case 'p': + { + // Style property: p + + sscanf(buffer, "p %d %d 0x%x", &controlId, &propertyId, &propertyValue); + + GuiSetStyle(controlId, propertyId, (int)propertyValue); + + } break; + case 'f': + { + // Style font: f + + int fontSize = 0; + char charmapFileName[256] = { 0 }; + char fontFileName[256] = { 0 }; + sscanf(buffer, "f %d %s %[^\r\n]s", &fontSize, charmapFileName, fontFileName); + + Font font = { 0 }; + + if (charmapFileName[0] != '0') + { + // Load characters from charmap file, + // expected '\n' separated list of integer values + char *charValues = LoadFileText(charmapFileName); + if (charValues != NULL) + { + int glyphCount = 0; + const char **chars = TextSplit(charValues, '\n', &glyphCount); + + int *values = (int *)RAYGUI_MALLOC(glyphCount*sizeof(int)); + for (int i = 0; i < glyphCount; i++) values[i] = TextToInteger(chars[i]); + + font = LoadFontEx(TextFormat("%s/%s", GetDirectoryPath(fileName), fontFileName), fontSize, values, glyphCount); + + RAYGUI_FREE(values); + } + } + else font = LoadFontEx(TextFormat("%s/%s", GetDirectoryPath(fileName), fontFileName), fontSize, NULL, 0); + + if ((font.texture.id > 0) && (font.glyphCount > 0)) GuiSetFont(font); + + } break; + default: break; + } + + fgets(buffer, 256, rgsFile); + } + } + else tryBinary = true; + + fclose(rgsFile); + } + + if (tryBinary) + { + rgsFile = fopen(fileName, "rb"); + + if (rgsFile == NULL) return; + + char signature[5] = ""; + short version = 0; + short reserved = 0; + int propertyCount = 0; + + fread(signature, 1, 4, rgsFile); + fread(&version, 1, sizeof(short), rgsFile); + fread(&reserved, 1, sizeof(short), rgsFile); + fread(&propertyCount, 1, sizeof(int), rgsFile); + + if ((signature[0] == 'r') && + (signature[1] == 'G') && + (signature[2] == 'S') && + (signature[3] == ' ')) + { + short controlId = 0; + short propertyId = 0; + int propertyValue = 0; + + for (int i = 0; i < propertyCount; i++) + { + fread(&controlId, 1, sizeof(short), rgsFile); + fread(&propertyId, 1, sizeof(short), rgsFile); + fread(&propertyValue, 1, sizeof(int), rgsFile); + + if (controlId == 0) // DEFAULT control + { + // If a DEFAULT property is loaded, it is propagated to all controls + // NOTE: All DEFAULT properties should be defined first in the file + GuiSetStyle(0, (int)propertyId, propertyValue); + + if (propertyId < RAYGUI_MAX_PROPS_BASE) for (int i = 1; i < RAYGUI_MAX_CONTROLS; i++) GuiSetStyle(i, (int)propertyId, propertyValue); + } + else GuiSetStyle((int)controlId, (int)propertyId, propertyValue); + } + + // Font loading is highly dependant on raylib API to load font data and image +#if !defined(RAYGUI_STANDALONE) + // Load custom font if available + int fontDataSize = 0; + fread(&fontDataSize, 1, sizeof(int), rgsFile); + + if (fontDataSize > 0) + { + Font font = { 0 }; + int fontType = 0; // 0-Normal, 1-SDF + Rectangle whiteRec = { 0 }; + + fread(&font.baseSize, 1, sizeof(int), rgsFile); + fread(&font.glyphCount, 1, sizeof(int), rgsFile); + fread(&fontType, 1, sizeof(int), rgsFile); + + // Load font white rectangle + fread(&whiteRec, 1, sizeof(Rectangle), rgsFile); + + // Load font image parameters + int fontImageSize = 0; + fread(&fontImageSize, 1, sizeof(int), rgsFile); + + if (fontImageSize > 0) + { + Image imFont = { 0 }; + imFont.mipmaps = 1; + fread(&imFont.width, 1, sizeof(int), rgsFile); + fread(&imFont.height, 1, sizeof(int), rgsFile); + fread(&imFont.format, 1, sizeof(int), rgsFile); + + imFont.data = (unsigned char *)RAYGUI_MALLOC(fontImageSize); + fread(imFont.data, 1, fontImageSize, rgsFile); + + font.texture = LoadTextureFromImage(imFont); + + RAYGUI_FREE(imFont.data); + } + + // Load font recs data + font.recs = (Rectangle *)RAYGUI_CALLOC(font.glyphCount, sizeof(Rectangle)); + for (int i = 0; i < font.glyphCount; i++) fread(&font.recs[i], 1, sizeof(Rectangle), rgsFile); + + // Load font chars info data + font.glyphs = (GlyphInfo *)RAYGUI_CALLOC(font.glyphCount, sizeof(GlyphInfo)); + for (int i = 0; i < font.glyphCount; i++) + { + fread(&font.glyphs[i].value, 1, sizeof(int), rgsFile); + fread(&font.glyphs[i].offsetX, 1, sizeof(int), rgsFile); + fread(&font.glyphs[i].offsetY, 1, sizeof(int), rgsFile); + fread(&font.glyphs[i].advanceX, 1, sizeof(int), rgsFile); + } + + GuiSetFont(font); + + // Set font texture source rectangle to be used as white texture to draw shapes + // NOTE: This way, all gui can be draw using a single draw call + if ((whiteRec.width != 0) && (whiteRec.height != 0)) SetShapesTexture(font.texture, whiteRec); + } +#endif + } + + fclose(rgsFile); + } +} + +// Load style default over global style +void GuiLoadStyleDefault(void) +{ + // We set this variable first to avoid cyclic function calls + // when calling GuiSetStyle() and GuiGetStyle() + guiStyleLoaded = true; + + // Initialize default LIGHT style property values + GuiSetStyle(DEFAULT, BORDER_COLOR_NORMAL, 0x838383ff); + GuiSetStyle(DEFAULT, BASE_COLOR_NORMAL, 0xc9c9c9ff); + GuiSetStyle(DEFAULT, TEXT_COLOR_NORMAL, 0x686868ff); + GuiSetStyle(DEFAULT, BORDER_COLOR_FOCUSED, 0x5bb2d9ff); + GuiSetStyle(DEFAULT, BASE_COLOR_FOCUSED, 0xc9effeff); + GuiSetStyle(DEFAULT, TEXT_COLOR_FOCUSED, 0x6c9bbcff); + GuiSetStyle(DEFAULT, BORDER_COLOR_PRESSED, 0x0492c7ff); + GuiSetStyle(DEFAULT, BASE_COLOR_PRESSED, 0x97e8ffff); + GuiSetStyle(DEFAULT, TEXT_COLOR_PRESSED, 0x368bafff); + GuiSetStyle(DEFAULT, BORDER_COLOR_DISABLED, 0xb5c1c2ff); + GuiSetStyle(DEFAULT, BASE_COLOR_DISABLED, 0xe6e9e9ff); + GuiSetStyle(DEFAULT, TEXT_COLOR_DISABLED, 0xaeb7b8ff); + GuiSetStyle(DEFAULT, BORDER_WIDTH, 1); // WARNING: Some controls use other values + GuiSetStyle(DEFAULT, TEXT_PADDING, 0); // WARNING: Some controls use other values + GuiSetStyle(DEFAULT, TEXT_ALIGNMENT, GUI_TEXT_ALIGN_CENTER); // WARNING: Some controls use other values + + // Initialize control-specific property values + // NOTE: Those properties are in default list but require specific values by control type + GuiSetStyle(LABEL, TEXT_ALIGNMENT, GUI_TEXT_ALIGN_LEFT); + GuiSetStyle(BUTTON, BORDER_WIDTH, 2); + GuiSetStyle(SLIDER, TEXT_PADDING, 5); + GuiSetStyle(CHECKBOX, TEXT_PADDING, 5); + GuiSetStyle(CHECKBOX, TEXT_ALIGNMENT, GUI_TEXT_ALIGN_RIGHT); + GuiSetStyle(TEXTBOX, TEXT_PADDING, 5); + GuiSetStyle(TEXTBOX, TEXT_ALIGNMENT, GUI_TEXT_ALIGN_LEFT); + GuiSetStyle(VALUEBOX, TEXT_PADDING, 4); + GuiSetStyle(VALUEBOX, TEXT_ALIGNMENT, GUI_TEXT_ALIGN_LEFT); + GuiSetStyle(SPINNER, TEXT_PADDING, 4); + GuiSetStyle(SPINNER, TEXT_ALIGNMENT, GUI_TEXT_ALIGN_LEFT); + GuiSetStyle(STATUSBAR, TEXT_PADDING, 6); + GuiSetStyle(STATUSBAR, TEXT_ALIGNMENT, GUI_TEXT_ALIGN_LEFT); + + // Initialize extended property values + // NOTE: By default, extended property values are initialized to 0 + GuiSetStyle(DEFAULT, TEXT_SIZE, 10); // DEFAULT, shared by all controls + GuiSetStyle(DEFAULT, TEXT_SPACING, 1); // DEFAULT, shared by all controls + GuiSetStyle(DEFAULT, LINE_COLOR, 0x90abb5ff); // DEFAULT specific property + GuiSetStyle(DEFAULT, BACKGROUND_COLOR, 0xf5f5f5ff); // DEFAULT specific property + GuiSetStyle(TOGGLE, GROUP_PADDING, 2); + GuiSetStyle(SLIDER, SLIDER_WIDTH, 15); + GuiSetStyle(SLIDER, SLIDER_PADDING, 1); + GuiSetStyle(PROGRESSBAR, PROGRESS_PADDING, 1); + GuiSetStyle(CHECKBOX, CHECK_PADDING, 1); + GuiSetStyle(COMBOBOX, COMBO_BUTTON_WIDTH, 30); + GuiSetStyle(COMBOBOX, COMBO_BUTTON_PADDING, 2); + GuiSetStyle(DROPDOWNBOX, ARROW_PADDING, 16); + GuiSetStyle(DROPDOWNBOX, DROPDOWN_ITEMS_PADDING, 2); + GuiSetStyle(TEXTBOX, TEXT_LINES_PADDING, 5); + GuiSetStyle(TEXTBOX, TEXT_INNER_PADDING, 4); + GuiSetStyle(TEXTBOX, COLOR_SELECTED_FG, 0xf0fffeff); + GuiSetStyle(TEXTBOX, COLOR_SELECTED_BG, 0x839affe0); + GuiSetStyle(SPINNER, SPIN_BUTTON_WIDTH, 20); + GuiSetStyle(SPINNER, SPIN_BUTTON_PADDING, 2); + GuiSetStyle(SCROLLBAR, BORDER_WIDTH, 0); + GuiSetStyle(SCROLLBAR, ARROWS_VISIBLE, 0); + GuiSetStyle(SCROLLBAR, ARROWS_SIZE, 6); + GuiSetStyle(SCROLLBAR, SCROLL_SLIDER_PADDING, 0); + GuiSetStyle(SCROLLBAR, SCROLL_SLIDER_SIZE, 16); + GuiSetStyle(SCROLLBAR, SCROLL_PADDING, 0); + GuiSetStyle(SCROLLBAR, SCROLL_SPEED, 10); + GuiSetStyle(LISTVIEW, LIST_ITEMS_HEIGHT, 0x1e); + GuiSetStyle(LISTVIEW, LIST_ITEMS_PADDING, 2); + GuiSetStyle(LISTVIEW, SCROLLBAR_WIDTH, 10); + GuiSetStyle(LISTVIEW, SCROLLBAR_SIDE, SCROLLBAR_RIGHT_SIDE); + GuiSetStyle(COLORPICKER, COLOR_SELECTOR_SIZE, 6); + GuiSetStyle(COLORPICKER, HUEBAR_WIDTH, 0x14); + GuiSetStyle(COLORPICKER, HUEBAR_PADDING, 0xa); + GuiSetStyle(COLORPICKER, HUEBAR_SELECTOR_HEIGHT, 6); + GuiSetStyle(COLORPICKER, HUEBAR_SELECTOR_OVERFLOW, 2); + + guiFont = GetFontDefault(); // Initialize default font +} + +// Get text with icon id prepended +// NOTE: Useful to add icons by name id (enum) instead of +// a number that can change between ricon versions +const char *GuiIconText(int iconId, const char *text) +{ +#if defined(RAYGUI_NO_RICONS) + return NULL; +#else + static char buffer[1024] = { 0 }; + memset(buffer, 0, 1024); + + sprintf(buffer, "#%03i#", iconId); + + if (text != NULL) + { + for (int i = 5; i < 1024; i++) + { + buffer[i] = text[i - 5]; + if (text[i - 5] == '\0') break; + } + } + + return buffer; +#endif +} + +#if !defined(RAYGUI_NO_RICONS) + +// Get full icons data pointer +unsigned int *GuiGetIcons(void) { return guiIcons; } + +// Load raygui icons file (.rgi) +// NOTE: In case nameIds are required, they can be requested with loadIconsName, +// they are returned as a guiIconsName[iconCount][RICON_MAX_NAME_LENGTH], +// WARNING: guiIconsName[]][] memory should be manually freed! +char **GuiLoadIcons(const char *fileName, bool loadIconsName) +{ + // Style File Structure (.rgi) + // ------------------------------------------------------ + // Offset | Size | Type | Description + // ------------------------------------------------------ + // 0 | 4 | char | Signature: "rGI " + // 4 | 2 | short | Version: 100 + // 6 | 2 | short | reserved + + // 8 | 2 | short | Num icons (N) + // 10 | 2 | short | Icons size (Options: 16, 32, 64) (S) + + // Icons name id (32 bytes per name id) + // foreach (icon) + // { + // 12+32*i | 32 | char | Icon NameId + // } + + // Icons data: One bit per pixel, stored as unsigned int array (depends on icon size) + // S*S pixels/32bit per unsigned int = K unsigned int per icon + // foreach (icon) + // { + // ... | K | unsigned int | Icon Data + // } + + FILE *rgiFile = fopen(fileName, "rb"); + + char **guiIconsName = NULL; + + if (rgiFile != NULL) + { + char signature[5] = ""; + short version = 0; + short reserved = 0; + short iconCount = 0; + short iconSize = 0; + + fread(signature, 1, 4, rgiFile); + fread(&version, 1, sizeof(short), rgiFile); + fread(&reserved, 1, sizeof(short), rgiFile); + fread(&iconCount, 1, sizeof(short), rgiFile); + fread(&iconSize, 1, sizeof(short), rgiFile); + + if ((signature[0] == 'r') && + (signature[1] == 'G') && + (signature[2] == 'I') && + (signature[3] == ' ')) + { + if (loadIconsName) + { + guiIconsName = (char **)RAYGUI_MALLOC(iconCount*sizeof(char **)); + for (int i = 0; i < iconCount; i++) + { + guiIconsName[i] = (char *)RAYGUI_MALLOC(RICON_MAX_NAME_LENGTH); + fread(guiIconsName[i], RICON_MAX_NAME_LENGTH, 1, rgiFile); + } + } + else fseek(rgiFile, iconCount*RICON_MAX_NAME_LENGTH, SEEK_CUR); + + // Read icons data directly over guiIcons data array + fread(guiIcons, iconCount*(iconSize*iconSize/32), sizeof(unsigned int), rgiFile); + } + + fclose(rgiFile); + } + + return guiIconsName; +} + +// Draw selected icon using rectangles pixel-by-pixel +void GuiDrawIcon(int iconId, int posX, int posY, int pixelSize, Color color) +{ + #define BIT_CHECK(a,b) ((a) & (1<<(b))) + + for (int i = 0, y = 0; i < RICON_SIZE*RICON_SIZE/32; i++) + { + for (int k = 0; k < 32; k++) + { + if (BIT_CHECK(guiIcons[iconId*RICON_DATA_ELEMENTS + i], k)) + { + #if !defined(RAYGUI_STANDALONE) + DrawRectangle(posX + (k%RICON_SIZE)*pixelSize, posY + y*pixelSize, pixelSize, pixelSize, color); + #endif + } + + if ((k == 15) || (k == 31)) y++; + } + } +} + +// Get icon bit data +// NOTE: Bit data array grouped as unsigned int (ICON_SIZE*ICON_SIZE/32 elements) +unsigned int *GuiGetIconData(int iconId) +{ + static unsigned int iconData[RICON_DATA_ELEMENTS] = { 0 }; + memset(iconData, 0, RICON_DATA_ELEMENTS*sizeof(unsigned int)); + + if (iconId < RICON_MAX_ICONS) memcpy(iconData, &guiIcons[iconId*RICON_DATA_ELEMENTS], RICON_DATA_ELEMENTS*sizeof(unsigned int)); + + return iconData; +} + +// Set icon bit data +// NOTE: Data must be provided as unsigned int array (ICON_SIZE*ICON_SIZE/32 elements) +void GuiSetIconData(int iconId, unsigned int *data) +{ + if (iconId < RICON_MAX_ICONS) memcpy(&guiIcons[iconId*RICON_DATA_ELEMENTS], data, RICON_DATA_ELEMENTS*sizeof(unsigned int)); +} + +// Set icon pixel value +void GuiSetIconPixel(int iconId, int x, int y) +{ + #define BIT_SET(a,b) ((a) |= (1<<(b))) + + // This logic works for any RICON_SIZE pixels icons, + // For example, in case of 16x16 pixels, every 2 lines fit in one unsigned int data element + BIT_SET(guiIcons[iconId*RICON_DATA_ELEMENTS + y/(sizeof(unsigned int)*8/RICON_SIZE)], x + (y%(sizeof(unsigned int)*8/RICON_SIZE)*RICON_SIZE)); +} + +// Clear icon pixel value +void GuiClearIconPixel(int iconId, int x, int y) +{ + #define BIT_CLEAR(a,b) ((a) &= ~((1)<<(b))) + + // This logic works for any RICON_SIZE pixels icons, + // For example, in case of 16x16 pixels, every 2 lines fit in one unsigned int data element + BIT_CLEAR(guiIcons[iconId*RICON_DATA_ELEMENTS + y/(sizeof(unsigned int)*8/RICON_SIZE)], x + (y%(sizeof(unsigned int)*8/RICON_SIZE)*RICON_SIZE)); +} + +// Check icon pixel value +bool GuiCheckIconPixel(int iconId, int x, int y) +{ + #define BIT_CHECK(a,b) ((a) & (1<<(b))) + + return (BIT_CHECK(guiIcons[iconId*8 + y/2], x + (y%2*16))); +} +#endif // !RAYGUI_NO_RICONS + +//---------------------------------------------------------------------------------- +// Module specific Functions Definition +//---------------------------------------------------------------------------------- +// Gui get text width using default font +// NOTE: Icon is not considered here +static int GetTextWidth(const char *text) +{ + Vector2 size = { 0 }; + + if ((text != NULL) && (text[0] != '\0')) + { + size = MeasureTextEx(guiFont, text, (float)GuiGetStyle(DEFAULT, TEXT_SIZE), (float)GuiGetStyle(DEFAULT, TEXT_SPACING)); + } + + return (int)size.x; +} + +// Get text bounds considering control bounds +static Rectangle GetTextBounds(int control, Rectangle bounds) +{ + Rectangle textBounds = bounds; + + textBounds.x = bounds.x + GuiGetStyle(control, BORDER_WIDTH); + textBounds.y = bounds.y + GuiGetStyle(control, BORDER_WIDTH); + textBounds.width = bounds.width - 2*GuiGetStyle(control, BORDER_WIDTH); + textBounds.height = bounds.height - 2*GuiGetStyle(control, BORDER_WIDTH); + + // Consider TEXT_PADDING properly, depends on control type and TEXT_ALIGNMENT + switch (control) + { + case COMBOBOX: bounds.width -= (GuiGetStyle(control, COMBO_BUTTON_WIDTH) + GuiGetStyle(control, COMBO_BUTTON_PADDING)); break; + case VALUEBOX: break; // NOTE: ValueBox text value always centered, text padding applies to label + default: + { + if (GuiGetStyle(control, TEXT_ALIGNMENT) == GUI_TEXT_ALIGN_RIGHT) textBounds.x -= GuiGetStyle(control, TEXT_PADDING); + else textBounds.x += GuiGetStyle(control, TEXT_PADDING); + } break; + } + + // TODO: Special cases (no label): COMBOBOX, DROPDOWNBOX, LISTVIEW (scrollbar?) + // More special cases (label on side): CHECKBOX, SLIDER, VALUEBOX, SPINNER + + return textBounds; +} + +// Get text icon if provided and move text cursor +// NOTE: We support up to 999 values for iconId +static const char *GetTextIcon(const char *text, int *iconId) +{ +#if !defined(RAYGUI_NO_RICONS) + *iconId = -1; + if (text[0] == '#') // Maybe we have an icon! + { + char iconValue[4] = { 0 }; // Maximum length for icon value: 3 digits + '\0' + + int pos = 1; + while ((pos < 4) && (text[pos] >= '0') && (text[pos] <= '9')) + { + iconValue[pos - 1] = text[pos]; + pos++; + } + + if (text[pos] == '#') + { + *iconId = TextToInteger(iconValue); + + // Move text pointer after icon + // WARNING: If only icon provided, it could point to EOL character: '\0' + if (*iconId >= 0) text += (pos + 1); + } + } +#endif + + return text; +} + +// Gui draw text using default font +static void GuiDrawText(const char *text, Rectangle bounds, int alignment, Color tint) +{ + #define TEXT_VALIGN_PIXEL_OFFSET(h) ((int)h%2) // Vertical alignment for pixel perfect + + if ((text != NULL) && (text[0] != '\0')) + { + int iconId = 0; + text = GetTextIcon(text, &iconId); // Check text for icon and move cursor + + // Get text position depending on alignment and iconId + //--------------------------------------------------------------------------------- + #define RICON_TEXT_PADDING 4 + + Vector2 position = { bounds.x, bounds.y }; + + // NOTE: We get text size after icon has been processed + int textWidth = GetTextWidth(text); + int textHeight = GuiGetStyle(DEFAULT, TEXT_SIZE); + + // If text requires an icon, add size to measure + if (iconId >= 0) + { + textWidth += RICON_SIZE; + + // WARNING: If only icon provided, text could be pointing to EOF character: '\0' + if ((text != NULL) && (text[0] != '\0')) textWidth += RICON_TEXT_PADDING; + } + + // Check guiTextAlign global variables + switch (alignment) + { + case GUI_TEXT_ALIGN_LEFT: + { + position.x = bounds.x; + position.y = bounds.y + bounds.height/2 - textHeight/2 + TEXT_VALIGN_PIXEL_OFFSET(bounds.height); + } break; + case GUI_TEXT_ALIGN_CENTER: + { + position.x = bounds.x + bounds.width/2 - textWidth/2; + position.y = bounds.y + bounds.height/2 - textHeight/2 + TEXT_VALIGN_PIXEL_OFFSET(bounds.height); + } break; + case GUI_TEXT_ALIGN_RIGHT: + { + position.x = bounds.x + bounds.width - textWidth; + position.y = bounds.y + bounds.height/2 - textHeight/2 + TEXT_VALIGN_PIXEL_OFFSET(bounds.height); + } break; + default: break; + } + + // NOTE: Make sure we get pixel-perfect coordinates, + // In case of decimals we got weird text positioning + position.x = (float)((int)position.x); + position.y = (float)((int)position.y); + //--------------------------------------------------------------------------------- + + // Draw text (with icon if available) + //--------------------------------------------------------------------------------- +#if !defined(RAYGUI_NO_RICONS) + if (iconId >= 0) + { + // NOTE: We consider icon height, probably different than text size + GuiDrawIcon(iconId, (int)position.x, (int)(bounds.y + bounds.height/2 - RICON_SIZE/2 + TEXT_VALIGN_PIXEL_OFFSET(bounds.height)), 1, tint); + position.x += (RICON_SIZE + RICON_TEXT_PADDING); + } +#endif + DrawTextEx(guiFont, text, position, (float)GuiGetStyle(DEFAULT, TEXT_SIZE), (float)GuiGetStyle(DEFAULT, TEXT_SPACING), tint); + //--------------------------------------------------------------------------------- + } +} + +// Gui draw rectangle using default raygui plain style with borders +static void GuiDrawRectangle(Rectangle rec, int borderWidth, Color borderColor, Color color) +{ + if (color.a > 0) + { + // Draw rectangle filled with color + DrawRectangle((int)rec.x, (int)rec.y, (int)rec.width, (int)rec.height, color); + } + + if (borderWidth > 0) + { + // Draw rectangle border lines with color + DrawRectangle((int)rec.x, (int)rec.y, (int)rec.width, borderWidth, borderColor); + DrawRectangle((int)rec.x, (int)rec.y + borderWidth, borderWidth, (int)rec.height - 2*borderWidth, borderColor); + DrawRectangle((int)rec.x + (int)rec.width - borderWidth, (int)rec.y + borderWidth, borderWidth, (int)rec.height - 2*borderWidth, borderColor); + DrawRectangle((int)rec.x, (int)rec.y + (int)rec.height - borderWidth, (int)rec.width, borderWidth, borderColor); + } +} + +// Split controls text into multiple strings +// Also check for multiple columns (required by GuiToggleGroup()) +static const char **GuiTextSplit(const char *text, int *count, int *textRow) +{ + // NOTE: Current implementation returns a copy of the provided string with '\0' (string end delimiter) + // inserted between strings defined by "delimiter" parameter. No memory is dynamically allocated, + // all used memory is static... it has some limitations: + // 1. Maximum number of possible split strings is set by TEXTSPLIT_MAX_TEXT_ELEMENTS + // 2. Maximum size of text to split is TEXTSPLIT_MAX_TEXT_LENGTH + // NOTE: Those definitions could be externally provided if required + + #if !defined(TEXTSPLIT_MAX_TEXT_LENGTH) + #define TEXTSPLIT_MAX_TEXT_LENGTH 1024 + #endif + + #if !defined(TEXTSPLIT_MAX_TEXT_ELEMENTS) + #define TEXTSPLIT_MAX_TEXT_ELEMENTS 128 + #endif + + static const char *result[TEXTSPLIT_MAX_TEXT_ELEMENTS] = { NULL }; + static char buffer[TEXTSPLIT_MAX_TEXT_LENGTH] = { 0 }; + memset(buffer, 0, TEXTSPLIT_MAX_TEXT_LENGTH); + + result[0] = buffer; + int counter = 1; + + if (textRow != NULL) textRow[0] = 0; + + // Count how many substrings we have on text and point to every one + for (int i = 0; i < TEXTSPLIT_MAX_TEXT_LENGTH; i++) + { + buffer[i] = text[i]; + if (buffer[i] == '\0') break; + else if ((buffer[i] == ';') || (buffer[i] == '\n')) + { + result[counter] = buffer + i + 1; + + if (textRow != NULL) + { + if (buffer[i] == '\n') textRow[counter] = textRow[counter - 1] + 1; + else textRow[counter] = textRow[counter - 1]; + } + + buffer[i] = '\0'; // Set an end of string at this point + + counter++; + if (counter == TEXTSPLIT_MAX_TEXT_ELEMENTS) break; + } + } + + *count = counter; + + return result; +} + +// Convert color data from RGB to HSV +// NOTE: Color data should be passed normalized +static Vector3 ConvertRGBtoHSV(Vector3 rgb) +{ + Vector3 hsv = { 0 }; + float min = 0.0f; + float max = 0.0f; + float delta = 0.0f; + + min = (rgb.x < rgb.y)? rgb.x : rgb.y; + min = (min < rgb.z)? min : rgb.z; + + max = (rgb.x > rgb.y)? rgb.x : rgb.y; + max = (max > rgb.z)? max : rgb.z; + + hsv.z = max; // Value + delta = max - min; + + if (delta < 0.00001f) + { + hsv.y = 0.0f; + hsv.x = 0.0f; // Undefined, maybe NAN? + return hsv; + } + + if (max > 0.0f) + { + // NOTE: If max is 0, this divide would cause a crash + hsv.y = (delta/max); // Saturation + } + else + { + // NOTE: If max is 0, then r = g = b = 0, s = 0, h is undefined + hsv.y = 0.0f; + hsv.x = 0.0f; // Undefined, maybe NAN? + return hsv; + } + + // NOTE: Comparing float values could not work properly + if (rgb.x >= max) hsv.x = (rgb.y - rgb.z)/delta; // Between yellow & magenta + else + { + if (rgb.y >= max) hsv.x = 2.0f + (rgb.z - rgb.x)/delta; // Between cyan & yellow + else hsv.x = 4.0f + (rgb.x - rgb.y)/delta; // Between magenta & cyan + } + + hsv.x *= 60.0f; // Convert to degrees + + if (hsv.x < 0.0f) hsv.x += 360.0f; + + return hsv; +} + +// Convert color data from HSV to RGB +// NOTE: Color data should be passed normalized +static Vector3 ConvertHSVtoRGB(Vector3 hsv) +{ + Vector3 rgb = { 0 }; + float hh = 0.0f, p = 0.0f, q = 0.0f, t = 0.0f, ff = 0.0f; + long i = 0; + + // NOTE: Comparing float values could not work properly + if (hsv.y <= 0.0f) + { + rgb.x = hsv.z; + rgb.y = hsv.z; + rgb.z = hsv.z; + return rgb; + } + + hh = hsv.x; + if (hh >= 360.0f) hh = 0.0f; + hh /= 60.0f; + + i = (long)hh; + ff = hh - i; + p = hsv.z*(1.0f - hsv.y); + q = hsv.z*(1.0f - (hsv.y*ff)); + t = hsv.z*(1.0f - (hsv.y*(1.0f - ff))); + + switch (i) + { + case 0: + { + rgb.x = hsv.z; + rgb.y = t; + rgb.z = p; + } break; + case 1: + { + rgb.x = q; + rgb.y = hsv.z; + rgb.z = p; + } break; + case 2: + { + rgb.x = p; + rgb.y = hsv.z; + rgb.z = t; + } break; + case 3: + { + rgb.x = p; + rgb.y = q; + rgb.z = hsv.z; + } break; + case 4: + { + rgb.x = t; + rgb.y = p; + rgb.z = hsv.z; + } break; + case 5: + default: + { + rgb.x = hsv.z; + rgb.y = p; + rgb.z = q; + } break; + } + + return rgb; +} + +#if defined(RAYGUI_STANDALONE) +// Returns a Color struct from hexadecimal value +static Color GetColor(int hexValue) +{ + Color color; + + color.r = (unsigned char)(hexValue >> 24) & 0xFF; + color.g = (unsigned char)(hexValue >> 16) & 0xFF; + color.b = (unsigned char)(hexValue >> 8) & 0xFF; + color.a = (unsigned char)hexValue & 0xFF; + + return color; +} + +// Returns hexadecimal value for a Color +static int ColorToInt(Color color) +{ + return (((int)color.r << 24) | ((int)color.g << 16) | ((int)color.b << 8) | (int)color.a); +} + +// Check if point is inside rectangle +static bool CheckCollisionPointRec(Vector2 point, Rectangle rec) +{ + bool collision = false; + + if ((point.x >= rec.x) && (point.x <= (rec.x + rec.width)) && + (point.y >= rec.y) && (point.y <= (rec.y + rec.height))) collision = true; + + return collision; +} + +// Color fade-in or fade-out, alpha goes from 0.0f to 1.0f +static Color Fade(Color color, float alpha) +{ + if (alpha < 0.0f) alpha = 0.0f; + else if (alpha > 1.0f) alpha = 1.0f; + + Color result = { color.r, color.g, color.b, (unsigned char)(255.0f*alpha) }; + + return result; +} + +// Formatting of text with variables to 'embed' +static const char *TextFormat(const char *text, ...) +{ + #define MAX_FORMATTEXT_LENGTH 64 + + static char buffer[MAX_FORMATTEXT_LENGTH]; + + va_list args; + va_start(args, text); + vsprintf(buffer, text, args); + va_end(args); + + return buffer; +} + +// Draw rectangle with vertical gradient fill color +// NOTE: This function is only used by GuiColorPicker() +static void DrawRectangleGradientV(int posX, int posY, int width, int height, Color color1, Color color2) +{ + Rectangle bounds = { (float)posX, (float)posY, (float)width, (float)height }; + DrawRectangleGradientEx(bounds, color1, color2, color2, color1); +} + +#define TEXTSPLIT_MAX_TEXT_BUFFER_LENGTH 1024 // Size of static buffer: TextSplit() +#define TEXTSPLIT_MAX_SUBSTRINGS_COUNT 128 // Size of static pointers array: TextSplit() + +// Split string into multiple strings +const char **TextSplit(const char *text, char delimiter, int *count) +{ + // NOTE: Current implementation returns a copy of the provided string with '\0' (string end delimiter) + // inserted between strings defined by "delimiter" parameter. No memory is dynamically allocated, + // all used memory is static... it has some limitations: + // 1. Maximum number of possible split strings is set by TEXTSPLIT_MAX_SUBSTRINGS_COUNT + // 2. Maximum size of text to split is TEXTSPLIT_MAX_TEXT_BUFFER_LENGTH + + static const char *result[TEXTSPLIT_MAX_SUBSTRINGS_COUNT] = { NULL }; + static char buffer[TEXTSPLIT_MAX_TEXT_BUFFER_LENGTH] = { 0 }; + memset(buffer, 0, TEXTSPLIT_MAX_TEXT_BUFFER_LENGTH); + + result[0] = buffer; + int counter = 0; + + if (text != NULL) + { + counter = 1; + + // Count how many substrings we have on text and point to every one + for (int i = 0; i < TEXTSPLIT_MAX_TEXT_BUFFER_LENGTH; i++) + { + buffer[i] = text[i]; + if (buffer[i] == '\0') break; + else if (buffer[i] == delimiter) + { + buffer[i] = '\0'; // Set an end of string at this point + result[counter] = buffer + i + 1; + counter++; + + if (counter == TEXTSPLIT_MAX_SUBSTRINGS_COUNT) break; + } + } + } + + *count = counter; + return result; +} + +// Get integer value from text +// NOTE: This function replaces atoi() [stdlib.h] +static int TextToInteger(const char *text) +{ + int value = 0; + int sign = 1; + + if ((text[0] == '+') || (text[0] == '-')) + { + if (text[0] == '-') sign = -1; + text++; + } + + for (int i = 0; ((text[i] >= '0') && (text[i] <= '9')); ++i) value = value*10 + (int)(text[i] - '0'); + + return value*sign; +} + +// Encode codepoint into UTF-8 text (char array size returned as parameter) +static const char *CodepointToUTF8(int codepoint, int *byteSize) +{ + static char utf8[6] = { 0 }; + int size = 0; + + if (codepoint <= 0x7f) + { + utf8[0] = (char)codepoint; + size = 1; + } + else if (codepoint <= 0x7ff) + { + utf8[0] = (char)(((codepoint >> 6) & 0x1f) | 0xc0); + utf8[1] = (char)((codepoint & 0x3f) | 0x80); + size = 2; + } + else if (codepoint <= 0xffff) + { + utf8[0] = (char)(((codepoint >> 12) & 0x0f) | 0xe0); + utf8[1] = (char)(((codepoint >> 6) & 0x3f) | 0x80); + utf8[2] = (char)((codepoint & 0x3f) | 0x80); + size = 3; + } + else if (codepoint <= 0x10ffff) + { + utf8[0] = (char)(((codepoint >> 18) & 0x07) | 0xf0); + utf8[1] = (char)(((codepoint >> 12) & 0x3f) | 0x80); + utf8[2] = (char)(((codepoint >> 6) & 0x3f) | 0x80); + utf8[3] = (char)((codepoint & 0x3f) | 0x80); + size = 4; + } + + *byteSize = size; + + return utf8; +} + +// Get next codepoint in a UTF-8 encoded text, scanning until '\0' is found +// When a invalid UTF-8 byte is encountered we exit as soon as possible and a '?'(0x3f) codepoint is returned +// Total number of bytes processed are returned as a parameter +// NOTE: the standard says U+FFFD should be returned in case of errors +// but that character is not supported by the default font in raylib +static int GetCodepoint(const char *text, int *bytesProcessed) +{ +/* + UTF-8 specs from https://www.ietf.org/rfc/rfc3629.txt + + Char. number range | UTF-8 octet sequence + (hexadecimal) | (binary) + --------------------+--------------------------------------------- + 0000 0000-0000 007F | 0xxxxxxx + 0000 0080-0000 07FF | 110xxxxx 10xxxxxx + 0000 0800-0000 FFFF | 1110xxxx 10xxxxxx 10xxxxxx + 0001 0000-0010 FFFF | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx +*/ + // NOTE: on decode errors we return as soon as possible + + int code = 0x3f; // Codepoint (defaults to '?') + int octet = (unsigned char)(text[0]); // The first UTF8 octet + *bytesProcessed = 1; + + if (octet <= 0x7f) + { + // Only one octet (ASCII range x00-7F) + code = text[0]; + } + else if ((octet & 0xe0) == 0xc0) + { + // Two octets + + // [0]xC2-DF [1]UTF8-tail(x80-BF) + unsigned char octet1 = text[1]; + + if ((octet1 == '\0') || ((octet1 >> 6) != 2)) { *bytesProcessed = 2; return code; } // Unexpected sequence + + if ((octet >= 0xc2) && (octet <= 0xdf)) + { + code = ((octet & 0x1f) << 6) | (octet1 & 0x3f); + *bytesProcessed = 2; + } + } + else if ((octet & 0xf0) == 0xe0) + { + // Three octets + unsigned char octet1 = text[1]; + unsigned char octet2 = '\0'; + + if ((octet1 == '\0') || ((octet1 >> 6) != 2)) { *bytesProcessed = 2; return code; } // Unexpected sequence + + octet2 = text[2]; + + if ((octet2 == '\0') || ((octet2 >> 6) != 2)) { *bytesProcessed = 3; return code; } // Unexpected sequence + + // [0]xE0 [1]xA0-BF [2]UTF8-tail(x80-BF) + // [0]xE1-EC [1]UTF8-tail [2]UTF8-tail(x80-BF) + // [0]xED [1]x80-9F [2]UTF8-tail(x80-BF) + // [0]xEE-EF [1]UTF8-tail [2]UTF8-tail(x80-BF) + + if (((octet == 0xe0) && !((octet1 >= 0xa0) && (octet1 <= 0xbf))) || + ((octet == 0xed) && !((octet1 >= 0x80) && (octet1 <= 0x9f)))) { *bytesProcessed = 2; return code; } + + if ((octet >= 0xe0) && (0 <= 0xef)) + { + code = ((octet & 0xf) << 12) | ((octet1 & 0x3f) << 6) | (octet2 & 0x3f); + *bytesProcessed = 3; + } + } + else if ((octet & 0xf8) == 0xf0) + { + // Four octets + if (octet > 0xf4) return code; + + unsigned char octet1 = text[1]; + unsigned char octet2 = '\0'; + unsigned char octet3 = '\0'; + + if ((octet1 == '\0') || ((octet1 >> 6) != 2)) { *bytesProcessed = 2; return code; } // Unexpected sequence + + octet2 = text[2]; + + if ((octet2 == '\0') || ((octet2 >> 6) != 2)) { *bytesProcessed = 3; return code; } // Unexpected sequence + + octet3 = text[3]; + + if ((octet3 == '\0') || ((octet3 >> 6) != 2)) { *bytesProcessed = 4; return code; } // Unexpected sequence + + // [0]xF0 [1]x90-BF [2]UTF8-tail [3]UTF8-tail + // [0]xF1-F3 [1]UTF8-tail [2]UTF8-tail [3]UTF8-tail + // [0]xF4 [1]x80-8F [2]UTF8-tail [3]UTF8-tail + + if (((octet == 0xf0) && !((octet1 >= 0x90) && (octet1 <= 0xbf))) || + ((octet == 0xf4) && !((octet1 >= 0x80) && (octet1 <= 0x8f)))) { *bytesProcessed = 2; return code; } // Unexpected sequence + + if (octet >= 0xf0) + { + code = ((octet & 0x7) << 18) | ((octet1 & 0x3f) << 12) | ((octet2 & 0x3f) << 6) | (octet3 & 0x3f); + *bytesProcessed = 4; + } + } + + if (code > 0x10ffff) code = 0x3f; // Codepoints after U+10ffff are invalid + + return code; +} +#endif // RAYGUI_STANDALONE + +#endif // RAYGUI_IMPLEMENTATION diff --git a/include/raylib.h b/include/raylib.h new file mode 100644 index 0000000..7a7711d --- /dev/null +++ b/include/raylib.h @@ -0,0 +1,1621 @@ +/********************************************************************************************** +* +* raylib v4.0 - A simple and easy-to-use library to enjoy videogames programming (www.raylib.com) +* +* FEATURES: +* - NO external dependencies, all required libraries included with raylib +* - Multiplatform: Windows, Linux, FreeBSD, OpenBSD, NetBSD, DragonFly, +* MacOS, Haiku, Android, Raspberry Pi, DRM native, HTML5. +* - Written in plain C code (C99) in PascalCase/camelCase notation +* - Hardware accelerated with OpenGL (1.1, 2.1, 3.3, 4.3 or ES2 - choose at compile) +* - Unique OpenGL abstraction layer (usable as standalone module): [rlgl] +* - Multiple Fonts formats supported (TTF, XNA fonts, AngelCode fonts) +* - Outstanding texture formats support, including compressed formats (DXT, ETC, ASTC) +* - Full 3d support for 3d Shapes, Models, Billboards, Heightmaps and more! +* - Flexible Materials system, supporting classic maps and PBR maps +* - Animated 3D models supported (skeletal bones animation) (IQM) +* - Shaders support, including Model shaders and Postprocessing shaders +* - Powerful math module for Vector, Matrix and Quaternion operations: [raymath] +* - Audio loading and playing with streaming support (WAV, OGG, MP3, FLAC, XM, MOD) +* - VR stereo rendering with configurable HMD device parameters +* - Bindings to multiple programming languages available! +* +* NOTES: +* - One default Font is loaded on InitWindow()->LoadFontDefault() [core, text] +* - One default Texture2D is loaded on rlglInit(), 1x1 white pixel R8G8B8A8 [rlgl] (OpenGL 3.3 or ES2) +* - One default Shader is loaded on rlglInit()->rlLoadShaderDefault() [rlgl] (OpenGL 3.3 or ES2) +* - One default RenderBatch is loaded on rlglInit()->rlLoadRenderBatch() [rlgl] (OpenGL 3.3 or ES2) +* +* DEPENDENCIES (included): +* [rcore] rglfw (Camilla Löwy - github.com/glfw/glfw) for window/context management and input (PLATFORM_DESKTOP) +* [rlgl] glad (David Herberth - github.com/Dav1dde/glad) for OpenGL 3.3 extensions loading (PLATFORM_DESKTOP) +* [raudio] miniaudio (David Reid - github.com/mackron/miniaudio) for audio device/context management +* +* OPTIONAL DEPENDENCIES (included): +* [rcore] msf_gif (Miles Fogle) for GIF recording +* [rcore] sinfl (Micha Mettke) for DEFLATE decompression algorythm +* [rcore] sdefl (Micha Mettke) for DEFLATE compression algorythm +* [rtextures] stb_image (Sean Barret) for images loading (BMP, TGA, PNG, JPEG, HDR...) +* [rtextures] stb_image_write (Sean Barret) for image writing (BMP, TGA, PNG, JPG) +* [rtextures] stb_image_resize (Sean Barret) for image resizing algorithms +* [rtext] stb_truetype (Sean Barret) for ttf fonts loading +* [rtext] stb_rect_pack (Sean Barret) for rectangles packing +* [rmodels] par_shapes (Philip Rideout) for parametric 3d shapes generation +* [rmodels] tinyobj_loader_c (Syoyo Fujita) for models loading (OBJ, MTL) +* [rmodels] cgltf (Johannes Kuhlmann) for models loading (glTF) +* [raudio] dr_wav (David Reid) for WAV audio file loading +* [raudio] dr_flac (David Reid) for FLAC audio file loading +* [raudio] dr_mp3 (David Reid) for MP3 audio file loading +* [raudio] stb_vorbis (Sean Barret) for OGG audio loading +* [raudio] jar_xm (Joshua Reisenauer) for XM audio module loading +* [raudio] jar_mod (Joshua Reisenauer) for MOD audio module loading +* +* +* LICENSE: zlib/libpng +* +* raylib is licensed under an unmodified zlib/libpng license, which is an OSI-certified, +* BSD-like license that allows static linking with closed source software: +* +* Copyright (c) 2013-2021 Ramon Santamaria (@raysan5) +* +* This software is provided "as-is", without any express or implied warranty. In no event +* will the authors be held liable for any damages arising from the use of this software. +* +* Permission is granted to anyone to use this software for any purpose, including commercial +* applications, and to alter it and redistribute it freely, subject to the following restrictions: +* +* 1. The origin of this software must not be misrepresented; you must not claim that you +* wrote the original software. If you use this software in a product, an acknowledgment +* in the product documentation would be appreciated but is not required. +* +* 2. Altered source versions must be plainly marked as such, and must not be misrepresented +* as being the original software. +* +* 3. This notice may not be removed or altered from any source distribution. +* +**********************************************************************************************/ + +#ifndef RAYLIB_H +#define RAYLIB_H + +#include // Required for: va_list - Only used by TraceLogCallback + +#define RAYLIB_VERSION "4.0" + +// Function specifiers in case library is build/used as a shared library (Windows) +// NOTE: Microsoft specifiers to tell compiler that symbols are imported/exported from a .dll +#if defined(_WIN32) +#if defined(BUILD_LIBTYPE_SHARED) +#define RLAPI __declspec(dllexport) // We are building the library as a Win32 shared library (.dll) +#elif defined(USE_LIBTYPE_SHARED) +#define RLAPI __declspec(dllimport) // We are using the library as a Win32 shared library (.dll) +#endif +#endif + +#ifndef RLAPI +#define RLAPI // Functions defined as 'extern' by default (implicit specifiers) +#endif + +//---------------------------------------------------------------------------------- +// Some basic Defines +//---------------------------------------------------------------------------------- +#ifndef PI +#define PI 3.14159265358979323846f +#endif +#ifndef DEG2RAD +#define DEG2RAD (PI / 180.0f) +#endif +#ifndef RAD2DEG +#define RAD2DEG (180.0f / PI) +#endif + +// Allow custom memory allocators +#ifndef RL_MALLOC +#define RL_MALLOC(sz) malloc(sz) +#endif +#ifndef RL_CALLOC +#define RL_CALLOC(n, sz) calloc(n, sz) +#endif +#ifndef RL_REALLOC +#define RL_REALLOC(ptr, sz) realloc(ptr, sz) +#endif +#ifndef RL_FREE +#define RL_FREE(ptr) free(ptr) +#endif + +// NOTE: MSVC C++ compiler does not support compound literals (C99 feature) +// Plain structures in C++ (without constructors) can be initialized with { } +#if defined(__cplusplus) +#define CLITERAL(type) type +#else +#define CLITERAL(type) (type) +#endif + +// NOTE: We set some defines with some data types declared by raylib +// Other modules (raymath, rlgl) also require some of those types, so, +// to be able to use those other modules as standalone (not depending on raylib) +// this defines are very useful for internal check and avoid type (re)definitions +#define RL_COLOR_TYPE +#define RL_RECTANGLE_TYPE +#define RL_VECTOR2_TYPE +#define RL_VECTOR3_TYPE +#define RL_VECTOR4_TYPE +#define RL_QUATERNION_TYPE +#define RL_MATRIX_TYPE + +// Some Basic Colors +// NOTE: Custom raylib color palette for amazing visuals on WHITE background +#define LIGHTGRAY \ + CLITERAL(Color) { 200, 200, 200, 255 } // Light Gray +#define GRAY \ + CLITERAL(Color) { 130, 130, 130, 255 } // Gray +#define DARKGRAY \ + CLITERAL(Color) { 80, 80, 80, 255 } // Dark Gray +#define YELLOW \ + CLITERAL(Color) { 253, 249, 0, 255 } // Yellow +#define GOLD \ + CLITERAL(Color) { 255, 203, 0, 255 } // Gold +#define ORANGE \ + CLITERAL(Color) { 255, 161, 0, 255 } // Orange +#define PINK \ + CLITERAL(Color) { 255, 109, 194, 255 } // Pink +#define RED \ + CLITERAL(Color) { 230, 41, 55, 255 } // Red +#define MAROON \ + CLITERAL(Color) { 190, 33, 55, 255 } // Maroon +#define GREEN \ + CLITERAL(Color) { 0, 228, 48, 255 } // Green +#define LIME \ + CLITERAL(Color) { 0, 158, 47, 255 } // Lime +#define DARKGREEN \ + CLITERAL(Color) { 0, 117, 44, 255 } // Dark Green +#define SKYBLUE \ + CLITERAL(Color) { 102, 191, 255, 255 } // Sky Blue +#define BLUE \ + CLITERAL(Color) { 0, 121, 241, 255 } // Blue +#define DARKBLUE \ + CLITERAL(Color) { 0, 82, 172, 255 } // Dark Blue +#define PURPLE \ + CLITERAL(Color) { 200, 122, 255, 255 } // Purple +#define VIOLET \ + CLITERAL(Color) { 135, 60, 190, 255 } // Violet +#define DARKPURPLE \ + CLITERAL(Color) { 112, 31, 126, 255 } // Dark Purple +#define BEIGE \ + CLITERAL(Color) { 211, 176, 131, 255 } // Beige +#define BROWN \ + CLITERAL(Color) { 127, 106, 79, 255 } // Brown +#define DARKBROWN \ + CLITERAL(Color) { 76, 63, 47, 255 } // Dark Brown + +#define WHITE \ + CLITERAL(Color) { 255, 255, 255, 255 } // White +#define BLACK \ + CLITERAL(Color) { 0, 0, 0, 255 } // Black +#define BLANK \ + CLITERAL(Color) { 0, 0, 0, 0 } // Blank (Transparent) +#define MAGENTA \ + CLITERAL(Color) { 255, 0, 255, 255 } // Magenta +#define RAYWHITE \ + CLITERAL(Color) { 245, 245, 245, 255 } // My own White (raylib logo) + +//---------------------------------------------------------------------------------- +// Structures Definition +//---------------------------------------------------------------------------------- +// Boolean type +#if defined(__STDC__) && __STDC_VERSION__ >= 199901L +#include +#elif !defined(__cplusplus) && !defined(bool) +typedef enum bool +{ + false, + true +} bool; +#define RL_BOOL_TYPE +#endif + +// Vector2, 2 components +typedef struct Vector2 +{ + float x; // Vector x component + float y; // Vector y component +} Vector2; + +// Vector3, 3 components +typedef struct Vector3 +{ + float x; // Vector x component + float y; // Vector y component + float z; // Vector z component +} Vector3; + +// Vector4, 4 components +typedef struct Vector4 +{ + float x; // Vector x component + float y; // Vector y component + float z; // Vector z component + float w; // Vector w component +} Vector4; + +// Quaternion, 4 components (Vector4 alias) +typedef Vector4 Quaternion; + +// Matrix, 4x4 components, column major, OpenGL style, right handed +typedef struct Matrix +{ + float m0, m4, m8, m12; // Matrix first row (4 components) + float m1, m5, m9, m13; // Matrix second row (4 components) + float m2, m6, m10, m14; // Matrix third row (4 components) + float m3, m7, m11, m15; // Matrix fourth row (4 components) +} Matrix; + +// Color, 4 components, R8G8B8A8 (32bit) +typedef struct Color +{ + unsigned char r; // Color red value + unsigned char g; // Color green value + unsigned char b; // Color blue value + unsigned char a; // Color alpha value +} Color; + +// Rectangle, 4 components +typedef struct Rectangle +{ + float x; // Rectangle top-left corner position x + float y; // Rectangle top-left corner position y + float width; // Rectangle width + float height; // Rectangle height +} Rectangle; + +// Image, pixel data stored in CPU memory (RAM) +typedef struct Image +{ + void *data; // Image raw data + int width; // Image base width + int height; // Image base height + int mipmaps; // Mipmap levels, 1 by default + int format; // Data format (PixelFormat type) +} Image; + +// Texture, tex data stored in GPU memory (VRAM) +typedef struct Texture +{ + unsigned int id; // OpenGL texture id + int width; // Texture base width + int height; // Texture base height + int mipmaps; // Mipmap levels, 1 by default + int format; // Data format (PixelFormat type) +} Texture; + +// Texture2D, same as Texture +typedef Texture Texture2D; + +// TextureCubemap, same as Texture +typedef Texture TextureCubemap; + +// RenderTexture, fbo for texture rendering +typedef struct RenderTexture +{ + unsigned int id; // OpenGL framebuffer object id + Texture texture; // Color buffer attachment texture + Texture depth; // Depth buffer attachment texture +} RenderTexture; + +// RenderTexture2D, same as RenderTexture +typedef RenderTexture RenderTexture2D; + +// NPatchInfo, n-patch layout info +typedef struct NPatchInfo +{ + Rectangle source; // Texture source rectangle + int left; // Left border offset + int top; // Top border offset + int right; // Right border offset + int bottom; // Bottom border offset + int layout; // Layout of the n-patch: 3x3, 1x3 or 3x1 +} NPatchInfo; + +// GlyphInfo, font characters glyphs info +typedef struct GlyphInfo +{ + int value; // Character value (Unicode) + int offsetX; // Character offset X when drawing + int offsetY; // Character offset Y when drawing + int advanceX; // Character advance position X + Image image; // Character image data +} GlyphInfo; + +// Font, font texture and GlyphInfo array data +typedef struct Font +{ + int baseSize; // Base size (default chars height) + int glyphCount; // Number of glyph characters + int glyphPadding; // Padding around the glyph characters + Texture2D texture; // Texture atlas containing the glyphs + Rectangle *recs; // Rectangles in texture for the glyphs + GlyphInfo *glyphs; // Glyphs info data +} Font; + +// Camera, defines position/orientation in 3d space +typedef struct Camera3D +{ + Vector3 position; // Camera position + Vector3 target; // Camera target it looks-at + Vector3 up; // Camera up vector (rotation over its axis) + float fovy; // Camera field-of-view apperture in Y (degrees) in perspective, used as near plane width in orthographic + int projection; // Camera projection: CAMERA_PERSPECTIVE or CAMERA_ORTHOGRAPHIC +} Camera3D; + +typedef Camera3D Camera; // Camera type fallback, defaults to Camera3D + +// Camera2D, defines position/orientation in 2d space +typedef struct Camera2D +{ + Vector2 offset; // Camera offset (displacement from target) + Vector2 target; // Camera target (rotation and zoom origin) + float rotation; // Camera rotation in degrees + float zoom; // Camera zoom (scaling), should be 1.0f by default +} Camera2D; + +// Mesh, vertex data and vao/vbo +typedef struct Mesh +{ + int vertexCount; // Number of vertices stored in arrays + int triangleCount; // Number of triangles stored (indexed or not) + + // Vertex attributes data + float *vertices; // Vertex position (XYZ - 3 components per vertex) (shader-location = 0) + float *texcoords; // Vertex texture coordinates (UV - 2 components per vertex) (shader-location = 1) + float *texcoords2; // Vertex second texture coordinates (useful for lightmaps) (shader-location = 5) + float *normals; // Vertex normals (XYZ - 3 components per vertex) (shader-location = 2) + float *tangents; // Vertex tangents (XYZW - 4 components per vertex) (shader-location = 4) + unsigned char *colors; // Vertex colors (RGBA - 4 components per vertex) (shader-location = 3) + unsigned short *indices; // Vertex indices (in case vertex data comes indexed) + + // Animation vertex data + float *animVertices; // Animated vertex positions (after bones transformations) + float *animNormals; // Animated normals (after bones transformations) + unsigned char *boneIds; // Vertex bone ids, max 255 bone ids, up to 4 bones influence by vertex (skinning) + float *boneWeights; // Vertex bone weight, up to 4 bones influence by vertex (skinning) + + // OpenGL identifiers + unsigned int vaoId; // OpenGL Vertex Array Object id + unsigned int *vboId; // OpenGL Vertex Buffer Objects id (default vertex data) +} Mesh; + +// Shader +typedef struct Shader +{ + unsigned int id; // Shader program id + int *locs; // Shader locations array (RL_MAX_SHADER_LOCATIONS) +} Shader; + +// MaterialMap +typedef struct MaterialMap +{ + Texture2D texture; // Material map texture + Color color; // Material map color + float value; // Material map value +} MaterialMap; + +// Material, includes shader and maps +typedef struct Material +{ + Shader shader; // Material shader + MaterialMap *maps; // Material maps array (MAX_MATERIAL_MAPS) + float params[4]; // Material generic parameters (if required) +} Material; + +// Transform, vectex transformation data +typedef struct Transform +{ + Vector3 translation; // Translation + Quaternion rotation; // Rotation + Vector3 scale; // Scale +} Transform; + +// Bone, skeletal animation bone +typedef struct BoneInfo +{ + char name[32]; // Bone name + int parent; // Bone parent +} BoneInfo; + +// Model, meshes, materials and animation data +typedef struct Model +{ + Matrix transform; // Local transform matrix + + int meshCount; // Number of meshes + int materialCount; // Number of materials + Mesh *meshes; // Meshes array + Material *materials; // Materials array + int *meshMaterial; // Mesh material number + + // Animation data + int boneCount; // Number of bones + BoneInfo *bones; // Bones information (skeleton) + Transform *bindPose; // Bones base transformation (pose) +} Model; + +// ModelAnimation +typedef struct ModelAnimation +{ + int boneCount; // Number of bones + int frameCount; // Number of animation frames + BoneInfo *bones; // Bones information (skeleton) + Transform **framePoses; // Poses array by frame +} ModelAnimation; + +// Ray, ray for raycasting +typedef struct Ray +{ + Vector3 position; // Ray position (origin) + Vector3 direction; // Ray direction +} Ray; + +// RayCollision, ray hit information +typedef struct RayCollision +{ + bool hit; // Did the ray hit something? + float distance; // Distance to nearest hit + Vector3 point; // Point of nearest hit + Vector3 normal; // Surface normal of hit +} RayCollision; + +// BoundingBox +typedef struct BoundingBox +{ + Vector3 min; // Minimum vertex box-corner + Vector3 max; // Maximum vertex box-corner +} BoundingBox; + +// Wave, audio wave data +typedef struct Wave +{ + unsigned int frameCount; // Total number of frames (considering channels) + unsigned int sampleRate; // Frequency (samples per second) + unsigned int sampleSize; // Bit depth (bits per sample): 8, 16, 32 (24 not supported) + unsigned int channels; // Number of channels (1-mono, 2-stereo, ...) + void *data; // Buffer data pointer +} Wave; + +typedef struct rAudioBuffer rAudioBuffer; + +// AudioStream, custom audio stream +typedef struct AudioStream +{ + rAudioBuffer *buffer; // Pointer to internal data used by the audio system + + unsigned int sampleRate; // Frequency (samples per second) + unsigned int sampleSize; // Bit depth (bits per sample): 8, 16, 32 (24 not supported) + unsigned int channels; // Number of channels (1-mono, 2-stereo, ...) +} AudioStream; + +// Sound +typedef struct Sound +{ + AudioStream stream; // Audio stream + unsigned int frameCount; // Total number of frames (considering channels) +} Sound; + +// Music, audio stream, anything longer than ~10 seconds should be streamed +typedef struct Music +{ + AudioStream stream; // Audio stream + unsigned int frameCount; // Total number of frames (considering channels) + bool looping; // Music looping enable + + int ctxType; // Type of music context (audio filetype) + void *ctxData; // Audio context data, depends on type +} Music; + +// VrDeviceInfo, Head-Mounted-Display device parameters +typedef struct VrDeviceInfo +{ + int hResolution; // Horizontal resolution in pixels + int vResolution; // Vertical resolution in pixels + float hScreenSize; // Horizontal size in meters + float vScreenSize; // Vertical size in meters + float vScreenCenter; // Screen center in meters + float eyeToScreenDistance; // Distance between eye and display in meters + float lensSeparationDistance; // Lens separation distance in meters + float interpupillaryDistance; // IPD (distance between pupils) in meters + float lensDistortionValues[4]; // Lens distortion constant parameters + float chromaAbCorrection[4]; // Chromatic aberration correction parameters +} VrDeviceInfo; + +// VrStereoConfig, VR stereo rendering configuration for simulator +typedef struct VrStereoConfig +{ + Matrix projection[2]; // VR projection matrices (per eye) + Matrix viewOffset[2]; // VR view offset matrices (per eye) + float leftLensCenter[2]; // VR left lens center + float rightLensCenter[2]; // VR right lens center + float leftScreenCenter[2]; // VR left screen center + float rightScreenCenter[2]; // VR right screen center + float scale[2]; // VR distortion scale + float scaleIn[2]; // VR distortion scale in +} VrStereoConfig; + +//---------------------------------------------------------------------------------- +// Enumerators Definition +//---------------------------------------------------------------------------------- +// System/Window config flags +// NOTE: Every bit registers one state (use it with bit masks) +// By default all flags are set to 0 +typedef enum +{ + FLAG_VSYNC_HINT = 0x00000040, // Set to try enabling V-Sync on GPU + FLAG_FULLSCREEN_MODE = 0x00000002, // Set to run program in fullscreen + FLAG_WINDOW_RESIZABLE = 0x00000004, // Set to allow resizable window + FLAG_WINDOW_UNDECORATED = 0x00000008, // Set to disable window decoration (frame and buttons) + FLAG_WINDOW_HIDDEN = 0x00000080, // Set to hide window + FLAG_WINDOW_MINIMIZED = 0x00000200, // Set to minimize window (iconify) + FLAG_WINDOW_MAXIMIZED = 0x00000400, // Set to maximize window (expanded to monitor) + FLAG_WINDOW_UNFOCUSED = 0x00000800, // Set to window non focused + FLAG_WINDOW_TOPMOST = 0x00001000, // Set to window always on top + FLAG_WINDOW_ALWAYS_RUN = 0x00000100, // Set to allow windows running while minimized + FLAG_WINDOW_TRANSPARENT = 0x00000010, // Set to allow transparent framebuffer + FLAG_WINDOW_HIGHDPI = 0x00002000, // Set to support HighDPI + FLAG_MSAA_4X_HINT = 0x00000020, // Set to try enabling MSAA 4X + FLAG_INTERLACED_HINT = 0x00010000 // Set to try enabling interlaced video format (for V3D) +} ConfigFlags; + +// Trace log level +// NOTE: Organized by priority level +typedef enum +{ + LOG_ALL = 0, // Display all logs + LOG_TRACE, // Trace logging, intended for internal use only + LOG_DEBUG, // Debug logging, used for internal debugging, it should be disabled on release builds + LOG_INFO, // Info logging, used for program execution info + LOG_WARNING, // Warning logging, used on recoverable failures + LOG_ERROR, // Error logging, used on unrecoverable failures + LOG_FATAL, // Fatal logging, used to abort program: exit(EXIT_FAILURE) + LOG_NONE // Disable logging +} TraceLogLevel; + +// Keyboard keys (US keyboard layout) +// NOTE: Use GetKeyPressed() to allow redefining +// required keys for alternative layouts +typedef enum +{ + KEY_NULL = 0, // Key: NULL, used for no key pressed + // Alphanumeric keys + KEY_APOSTROPHE = 39, // Key: ' + KEY_COMMA = 44, // Key: , + KEY_MINUS = 45, // Key: - + KEY_PERIOD = 46, // Key: . + KEY_SLASH = 47, // Key: / + KEY_ZERO = 48, // Key: 0 + KEY_ONE = 49, // Key: 1 + KEY_TWO = 50, // Key: 2 + KEY_THREE = 51, // Key: 3 + KEY_FOUR = 52, // Key: 4 + KEY_FIVE = 53, // Key: 5 + KEY_SIX = 54, // Key: 6 + KEY_SEVEN = 55, // Key: 7 + KEY_EIGHT = 56, // Key: 8 + KEY_NINE = 57, // Key: 9 + KEY_SEMICOLON = 59, // Key: ; + KEY_EQUAL = 61, // Key: = + KEY_A = 65, // Key: A | a + KEY_B = 66, // Key: B | b + KEY_C = 67, // Key: C | c + KEY_D = 68, // Key: D | d + KEY_E = 69, // Key: E | e + KEY_F = 70, // Key: F | f + KEY_G = 71, // Key: G | g + KEY_H = 72, // Key: H | h + KEY_I = 73, // Key: I | i + KEY_J = 74, // Key: J | j + KEY_K = 75, // Key: K | k + KEY_L = 76, // Key: L | l + KEY_M = 77, // Key: M | m + KEY_N = 78, // Key: N | n + KEY_O = 79, // Key: O | o + KEY_P = 80, // Key: P | p + KEY_Q = 81, // Key: Q | q + KEY_R = 82, // Key: R | r + KEY_S = 83, // Key: S | s + KEY_T = 84, // Key: T | t + KEY_U = 85, // Key: U | u + KEY_V = 86, // Key: V | v + KEY_W = 87, // Key: W | w + KEY_X = 88, // Key: X | x + KEY_Y = 89, // Key: Y | y + KEY_Z = 90, // Key: Z | z + KEY_LEFT_BRACKET = 91, // Key: [ + KEY_BACKSLASH = 92, // Key: '\' + KEY_RIGHT_BRACKET = 93, // Key: ] + KEY_GRAVE = 96, // Key: ` + // Function keys + KEY_SPACE = 32, // Key: Space + KEY_ESCAPE = 256, // Key: Esc + KEY_ENTER = 257, // Key: Enter + KEY_TAB = 258, // Key: Tab + KEY_BACKSPACE = 259, // Key: Backspace + KEY_INSERT = 260, // Key: Ins + KEY_DELETE = 261, // Key: Del + KEY_RIGHT = 262, // Key: Cursor right + KEY_LEFT = 263, // Key: Cursor left + KEY_DOWN = 264, // Key: Cursor down + KEY_UP = 265, // Key: Cursor up + KEY_PAGE_UP = 266, // Key: Page up + KEY_PAGE_DOWN = 267, // Key: Page down + KEY_HOME = 268, // Key: Home + KEY_END = 269, // Key: End + KEY_CAPS_LOCK = 280, // Key: Caps lock + KEY_SCROLL_LOCK = 281, // Key: Scroll down + KEY_NUM_LOCK = 282, // Key: Num lock + KEY_PRINT_SCREEN = 283, // Key: Print screen + KEY_PAUSE = 284, // Key: Pause + KEY_F1 = 290, // Key: F1 + KEY_F2 = 291, // Key: F2 + KEY_F3 = 292, // Key: F3 + KEY_F4 = 293, // Key: F4 + KEY_F5 = 294, // Key: F5 + KEY_F6 = 295, // Key: F6 + KEY_F7 = 296, // Key: F7 + KEY_F8 = 297, // Key: F8 + KEY_F9 = 298, // Key: F9 + KEY_F10 = 299, // Key: F10 + KEY_F11 = 300, // Key: F11 + KEY_F12 = 301, // Key: F12 + KEY_LEFT_SHIFT = 340, // Key: Shift left + KEY_LEFT_CONTROL = 341, // Key: Control left + KEY_LEFT_ALT = 342, // Key: Alt left + KEY_LEFT_SUPER = 343, // Key: Super left + KEY_RIGHT_SHIFT = 344, // Key: Shift right + KEY_RIGHT_CONTROL = 345, // Key: Control right + KEY_RIGHT_ALT = 346, // Key: Alt right + KEY_RIGHT_SUPER = 347, // Key: Super right + KEY_KB_MENU = 348, // Key: KB menu + // Keypad keys + KEY_KP_0 = 320, // Key: Keypad 0 + KEY_KP_1 = 321, // Key: Keypad 1 + KEY_KP_2 = 322, // Key: Keypad 2 + KEY_KP_3 = 323, // Key: Keypad 3 + KEY_KP_4 = 324, // Key: Keypad 4 + KEY_KP_5 = 325, // Key: Keypad 5 + KEY_KP_6 = 326, // Key: Keypad 6 + KEY_KP_7 = 327, // Key: Keypad 7 + KEY_KP_8 = 328, // Key: Keypad 8 + KEY_KP_9 = 329, // Key: Keypad 9 + KEY_KP_DECIMAL = 330, // Key: Keypad . + KEY_KP_DIVIDE = 331, // Key: Keypad / + KEY_KP_MULTIPLY = 332, // Key: Keypad * + KEY_KP_SUBTRACT = 333, // Key: Keypad - + KEY_KP_ADD = 334, // Key: Keypad + + KEY_KP_ENTER = 335, // Key: Keypad Enter + KEY_KP_EQUAL = 336, // Key: Keypad = + // Android key buttons + KEY_BACK = 4, // Key: Android back button + KEY_MENU = 82, // Key: Android menu button + KEY_VOLUME_UP = 24, // Key: Android volume up button + KEY_VOLUME_DOWN = 25 // Key: Android volume down button +} KeyboardKey; + +// Add backwards compatibility support for deprecated names +#define MOUSE_LEFT_BUTTON MOUSE_BUTTON_LEFT +#define MOUSE_RIGHT_BUTTON MOUSE_BUTTON_RIGHT +#define MOUSE_MIDDLE_BUTTON MOUSE_BUTTON_MIDDLE + +// Mouse buttons +typedef enum +{ + MOUSE_BUTTON_LEFT = 0, // Mouse button left + MOUSE_BUTTON_RIGHT = 1, // Mouse button right + MOUSE_BUTTON_MIDDLE = 2, // Mouse button middle (pressed wheel) + MOUSE_BUTTON_SIDE = 3, // Mouse button side (advanced mouse device) + MOUSE_BUTTON_EXTRA = 4, // Mouse button extra (advanced mouse device) + MOUSE_BUTTON_FORWARD = 5, // Mouse button fordward (advanced mouse device) + MOUSE_BUTTON_BACK = 6, // Mouse button back (advanced mouse device) +} MouseButton; + +// Mouse cursor +typedef enum +{ + MOUSE_CURSOR_DEFAULT = 0, // Default pointer shape + MOUSE_CURSOR_ARROW = 1, // Arrow shape + MOUSE_CURSOR_IBEAM = 2, // Text writing cursor shape + MOUSE_CURSOR_CROSSHAIR = 3, // Cross shape + MOUSE_CURSOR_POINTING_HAND = 4, // Pointing hand cursor + MOUSE_CURSOR_RESIZE_EW = 5, // Horizontal resize/move arrow shape + MOUSE_CURSOR_RESIZE_NS = 6, // Vertical resize/move arrow shape + MOUSE_CURSOR_RESIZE_NWSE = 7, // Top-left to bottom-right diagonal resize/move arrow shape + MOUSE_CURSOR_RESIZE_NESW = 8, // The top-right to bottom-left diagonal resize/move arrow shape + MOUSE_CURSOR_RESIZE_ALL = 9, // The omni-directional resize/move cursor shape + MOUSE_CURSOR_NOT_ALLOWED = 10 // The operation-not-allowed shape +} MouseCursor; + +// Gamepad buttons +typedef enum +{ + GAMEPAD_BUTTON_UNKNOWN = 0, // Unknown button, just for error checking + GAMEPAD_BUTTON_LEFT_FACE_UP, // Gamepad left DPAD up button + GAMEPAD_BUTTON_LEFT_FACE_RIGHT, // Gamepad left DPAD right button + GAMEPAD_BUTTON_LEFT_FACE_DOWN, // Gamepad left DPAD down button + GAMEPAD_BUTTON_LEFT_FACE_LEFT, // Gamepad left DPAD left button + GAMEPAD_BUTTON_RIGHT_FACE_UP, // Gamepad right button up (i.e. PS3: Triangle, Xbox: Y) + GAMEPAD_BUTTON_RIGHT_FACE_RIGHT, // Gamepad right button right (i.e. PS3: Square, Xbox: X) + GAMEPAD_BUTTON_RIGHT_FACE_DOWN, // Gamepad right button down (i.e. PS3: Cross, Xbox: A) + GAMEPAD_BUTTON_RIGHT_FACE_LEFT, // Gamepad right button left (i.e. PS3: Circle, Xbox: B) + GAMEPAD_BUTTON_LEFT_TRIGGER_1, // Gamepad top/back trigger left (first), it could be a trailing button + GAMEPAD_BUTTON_LEFT_TRIGGER_2, // Gamepad top/back trigger left (second), it could be a trailing button + GAMEPAD_BUTTON_RIGHT_TRIGGER_1, // Gamepad top/back trigger right (one), it could be a trailing button + GAMEPAD_BUTTON_RIGHT_TRIGGER_2, // Gamepad top/back trigger right (second), it could be a trailing button + GAMEPAD_BUTTON_MIDDLE_LEFT, // Gamepad center buttons, left one (i.e. PS3: Select) + GAMEPAD_BUTTON_MIDDLE, // Gamepad center buttons, middle one (i.e. PS3: PS, Xbox: XBOX) + GAMEPAD_BUTTON_MIDDLE_RIGHT, // Gamepad center buttons, right one (i.e. PS3: Start) + GAMEPAD_BUTTON_LEFT_THUMB, // Gamepad joystick pressed button left + GAMEPAD_BUTTON_RIGHT_THUMB // Gamepad joystick pressed button right +} GamepadButton; + +// Gamepad axis +typedef enum +{ + GAMEPAD_AXIS_LEFT_X = 0, // Gamepad left stick X axis + GAMEPAD_AXIS_LEFT_Y = 1, // Gamepad left stick Y axis + GAMEPAD_AXIS_RIGHT_X = 2, // Gamepad right stick X axis + GAMEPAD_AXIS_RIGHT_Y = 3, // Gamepad right stick Y axis + GAMEPAD_AXIS_LEFT_TRIGGER = 4, // Gamepad back trigger left, pressure level: [1..-1] + GAMEPAD_AXIS_RIGHT_TRIGGER = 5 // Gamepad back trigger right, pressure level: [1..-1] +} GamepadAxis; + +// Material map index +typedef enum +{ + MATERIAL_MAP_ALBEDO = 0, // Albedo material (same as: MATERIAL_MAP_DIFFUSE) + MATERIAL_MAP_METALNESS, // Metalness material (same as: MATERIAL_MAP_SPECULAR) + MATERIAL_MAP_NORMAL, // Normal material + MATERIAL_MAP_ROUGHNESS, // Roughness material + MATERIAL_MAP_OCCLUSION, // Ambient occlusion material + MATERIAL_MAP_EMISSION, // Emission material + MATERIAL_MAP_HEIGHT, // Heightmap material + MATERIAL_MAP_CUBEMAP, // Cubemap material (NOTE: Uses GL_TEXTURE_CUBE_MAP) + MATERIAL_MAP_IRRADIANCE, // Irradiance material (NOTE: Uses GL_TEXTURE_CUBE_MAP) + MATERIAL_MAP_PREFILTER, // Prefilter material (NOTE: Uses GL_TEXTURE_CUBE_MAP) + MATERIAL_MAP_BRDF // Brdf material +} MaterialMapIndex; + +#define MATERIAL_MAP_DIFFUSE MATERIAL_MAP_ALBEDO +#define MATERIAL_MAP_SPECULAR MATERIAL_MAP_METALNESS + +// Shader location index +typedef enum +{ + SHADER_LOC_VERTEX_POSITION = 0, // Shader location: vertex attribute: position + SHADER_LOC_VERTEX_TEXCOORD01, // Shader location: vertex attribute: texcoord01 + SHADER_LOC_VERTEX_TEXCOORD02, // Shader location: vertex attribute: texcoord02 + SHADER_LOC_VERTEX_NORMAL, // Shader location: vertex attribute: normal + SHADER_LOC_VERTEX_TANGENT, // Shader location: vertex attribute: tangent + SHADER_LOC_VERTEX_COLOR, // Shader location: vertex attribute: color + SHADER_LOC_MATRIX_MVP, // Shader location: matrix uniform: model-view-projection + SHADER_LOC_MATRIX_VIEW, // Shader location: matrix uniform: view (camera transform) + SHADER_LOC_MATRIX_PROJECTION, // Shader location: matrix uniform: projection + SHADER_LOC_MATRIX_MODEL, // Shader location: matrix uniform: model (transform) + SHADER_LOC_MATRIX_NORMAL, // Shader location: matrix uniform: normal + SHADER_LOC_VECTOR_VIEW, // Shader location: vector uniform: view + SHADER_LOC_COLOR_DIFFUSE, // Shader location: vector uniform: diffuse color + SHADER_LOC_COLOR_SPECULAR, // Shader location: vector uniform: specular color + SHADER_LOC_COLOR_AMBIENT, // Shader location: vector uniform: ambient color + SHADER_LOC_MAP_ALBEDO, // Shader location: sampler2d texture: albedo (same as: SHADER_LOC_MAP_DIFFUSE) + SHADER_LOC_MAP_METALNESS, // Shader location: sampler2d texture: metalness (same as: SHADER_LOC_MAP_SPECULAR) + SHADER_LOC_MAP_NORMAL, // Shader location: sampler2d texture: normal + SHADER_LOC_MAP_ROUGHNESS, // Shader location: sampler2d texture: roughness + SHADER_LOC_MAP_OCCLUSION, // Shader location: sampler2d texture: occlusion + SHADER_LOC_MAP_EMISSION, // Shader location: sampler2d texture: emission + SHADER_LOC_MAP_HEIGHT, // Shader location: sampler2d texture: height + SHADER_LOC_MAP_CUBEMAP, // Shader location: samplerCube texture: cubemap + SHADER_LOC_MAP_IRRADIANCE, // Shader location: samplerCube texture: irradiance + SHADER_LOC_MAP_PREFILTER, // Shader location: samplerCube texture: prefilter + SHADER_LOC_MAP_BRDF // Shader location: sampler2d texture: brdf +} ShaderLocationIndex; + +#define SHADER_LOC_MAP_DIFFUSE SHADER_LOC_MAP_ALBEDO +#define SHADER_LOC_MAP_SPECULAR SHADER_LOC_MAP_METALNESS + +// Shader uniform data type +typedef enum +{ + SHADER_UNIFORM_FLOAT = 0, // Shader uniform type: float + SHADER_UNIFORM_VEC2, // Shader uniform type: vec2 (2 float) + SHADER_UNIFORM_VEC3, // Shader uniform type: vec3 (3 float) + SHADER_UNIFORM_VEC4, // Shader uniform type: vec4 (4 float) + SHADER_UNIFORM_INT, // Shader uniform type: int + SHADER_UNIFORM_IVEC2, // Shader uniform type: ivec2 (2 int) + SHADER_UNIFORM_IVEC3, // Shader uniform type: ivec3 (3 int) + SHADER_UNIFORM_IVEC4, // Shader uniform type: ivec4 (4 int) + SHADER_UNIFORM_SAMPLER2D // Shader uniform type: sampler2d +} ShaderUniformDataType; + +// Shader attribute data types +typedef enum +{ + SHADER_ATTRIB_FLOAT = 0, // Shader attribute type: float + SHADER_ATTRIB_VEC2, // Shader attribute type: vec2 (2 float) + SHADER_ATTRIB_VEC3, // Shader attribute type: vec3 (3 float) + SHADER_ATTRIB_VEC4 // Shader attribute type: vec4 (4 float) +} ShaderAttributeDataType; + +// Pixel formats +// NOTE: Support depends on OpenGL version and platform +typedef enum +{ + PIXELFORMAT_UNCOMPRESSED_GRAYSCALE = 1, // 8 bit per pixel (no alpha) + PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA, // 8*2 bpp (2 channels) + PIXELFORMAT_UNCOMPRESSED_R5G6B5, // 16 bpp + PIXELFORMAT_UNCOMPRESSED_R8G8B8, // 24 bpp + PIXELFORMAT_UNCOMPRESSED_R5G5B5A1, // 16 bpp (1 bit alpha) + PIXELFORMAT_UNCOMPRESSED_R4G4B4A4, // 16 bpp (4 bit alpha) + PIXELFORMAT_UNCOMPRESSED_R8G8B8A8, // 32 bpp + PIXELFORMAT_UNCOMPRESSED_R32, // 32 bpp (1 channel - float) + PIXELFORMAT_UNCOMPRESSED_R32G32B32, // 32*3 bpp (3 channels - float) + PIXELFORMAT_UNCOMPRESSED_R32G32B32A32, // 32*4 bpp (4 channels - float) + PIXELFORMAT_COMPRESSED_DXT1_RGB, // 4 bpp (no alpha) + PIXELFORMAT_COMPRESSED_DXT1_RGBA, // 4 bpp (1 bit alpha) + PIXELFORMAT_COMPRESSED_DXT3_RGBA, // 8 bpp + PIXELFORMAT_COMPRESSED_DXT5_RGBA, // 8 bpp + PIXELFORMAT_COMPRESSED_ETC1_RGB, // 4 bpp + PIXELFORMAT_COMPRESSED_ETC2_RGB, // 4 bpp + PIXELFORMAT_COMPRESSED_ETC2_EAC_RGBA, // 8 bpp + PIXELFORMAT_COMPRESSED_PVRT_RGB, // 4 bpp + PIXELFORMAT_COMPRESSED_PVRT_RGBA, // 4 bpp + PIXELFORMAT_COMPRESSED_ASTC_4x4_RGBA, // 8 bpp + PIXELFORMAT_COMPRESSED_ASTC_8x8_RGBA // 2 bpp +} PixelFormat; + +// Texture parameters: filter mode +// NOTE 1: Filtering considers mipmaps if available in the texture +// NOTE 2: Filter is accordingly set for minification and magnification +typedef enum +{ + TEXTURE_FILTER_POINT = 0, // No filter, just pixel aproximation + TEXTURE_FILTER_BILINEAR, // Linear filtering + TEXTURE_FILTER_TRILINEAR, // Trilinear filtering (linear with mipmaps) + TEXTURE_FILTER_ANISOTROPIC_4X, // Anisotropic filtering 4x + TEXTURE_FILTER_ANISOTROPIC_8X, // Anisotropic filtering 8x + TEXTURE_FILTER_ANISOTROPIC_16X, // Anisotropic filtering 16x +} TextureFilter; + +// Texture parameters: wrap mode +typedef enum +{ + TEXTURE_WRAP_REPEAT = 0, // Repeats texture in tiled mode + TEXTURE_WRAP_CLAMP, // Clamps texture to edge pixel in tiled mode + TEXTURE_WRAP_MIRROR_REPEAT, // Mirrors and repeats the texture in tiled mode + TEXTURE_WRAP_MIRROR_CLAMP // Mirrors and clamps to border the texture in tiled mode +} TextureWrap; + +// Cubemap layouts +typedef enum +{ + CUBEMAP_LAYOUT_AUTO_DETECT = 0, // Automatically detect layout type + CUBEMAP_LAYOUT_LINE_VERTICAL, // Layout is defined by a vertical line with faces + CUBEMAP_LAYOUT_LINE_HORIZONTAL, // Layout is defined by an horizontal line with faces + CUBEMAP_LAYOUT_CROSS_THREE_BY_FOUR, // Layout is defined by a 3x4 cross with cubemap faces + CUBEMAP_LAYOUT_CROSS_FOUR_BY_THREE, // Layout is defined by a 4x3 cross with cubemap faces + CUBEMAP_LAYOUT_PANORAMA // Layout is defined by a panorama image (equirectangular map) +} CubemapLayout; + +// Font type, defines generation method +typedef enum +{ + FONT_DEFAULT = 0, // Default font generation, anti-aliased + FONT_BITMAP, // Bitmap font generation, no anti-aliasing + FONT_SDF // SDF font generation, requires external shader +} FontType; + +// Color blending modes (pre-defined) +typedef enum +{ + BLEND_ALPHA = 0, // Blend textures considering alpha (default) + BLEND_ADDITIVE, // Blend textures adding colors + BLEND_MULTIPLIED, // Blend textures multiplying colors + BLEND_ADD_COLORS, // Blend textures adding colors (alternative) + BLEND_SUBTRACT_COLORS, // Blend textures subtracting colors (alternative) + BLEND_CUSTOM // Belnd textures using custom src/dst factors (use rlSetBlendMode()) +} BlendMode; + +// Gesture +// NOTE: It could be used as flags to enable only some gestures +typedef enum +{ + GESTURE_NONE = 0, // No gesture + GESTURE_TAP = 1, // Tap gesture + GESTURE_DOUBLETAP = 2, // Double tap gesture + GESTURE_HOLD = 4, // Hold gesture + GESTURE_DRAG = 8, // Drag gesture + GESTURE_SWIPE_RIGHT = 16, // Swipe right gesture + GESTURE_SWIPE_LEFT = 32, // Swipe left gesture + GESTURE_SWIPE_UP = 64, // Swipe up gesture + GESTURE_SWIPE_DOWN = 128, // Swipe down gesture + GESTURE_PINCH_IN = 256, // Pinch in gesture + GESTURE_PINCH_OUT = 512 // Pinch out gesture +} Gesture; + +// Camera system modes +typedef enum +{ + CAMERA_CUSTOM = 0, // Custom camera + CAMERA_FREE, // Free camera + CAMERA_ORBITAL, // Orbital camera + CAMERA_FIRST_PERSON, // First person camera + CAMERA_THIRD_PERSON // Third person camera +} CameraMode; + +// Camera projection +typedef enum +{ + CAMERA_PERSPECTIVE = 0, // Perspective projection + CAMERA_ORTHOGRAPHIC // Orthographic projection +} CameraProjection; + +// N-patch layout +typedef enum +{ + NPATCH_NINE_PATCH = 0, // Npatch layout: 3x3 tiles + NPATCH_THREE_PATCH_VERTICAL, // Npatch layout: 1x3 tiles + NPATCH_THREE_PATCH_HORIZONTAL // Npatch layout: 3x1 tiles +} NPatchLayout; + +// Callbacks to hook some internal functions +// WARNING: This callbacks are intended for advance users +typedef void (*TraceLogCallback)(int logLevel, const char *text, va_list args); // Logging: Redirect trace log messages +typedef unsigned char *(*LoadFileDataCallback)(const char *fileName, unsigned int *bytesRead); // FileIO: Load binary data +typedef bool (*SaveFileDataCallback)(const char *fileName, void *data, unsigned int bytesToWrite); // FileIO: Save binary data +typedef char *(*LoadFileTextCallback)(const char *fileName); // FileIO: Load text data +typedef bool (*SaveFileTextCallback)(const char *fileName, char *text); // FileIO: Save text data + +//------------------------------------------------------------------------------------ +// Global Variables Definition +//------------------------------------------------------------------------------------ +// It's lonely here... + +//------------------------------------------------------------------------------------ +// Window and Graphics Device Functions (Module: core) +//------------------------------------------------------------------------------------ + +#if defined(__cplusplus) +extern "C" +{ // Prevents name mangling of functions +#endif + + // Window-related functions + RLAPI void InitWindow(int width, int height, const char *title); // Initialize window and OpenGL context + RLAPI bool WindowShouldClose(void); // Check if KEY_ESCAPE pressed or Close icon pressed + RLAPI void CloseWindow(void); // Close window and unload OpenGL context + RLAPI bool IsWindowReady(void); // Check if window has been initialized successfully + RLAPI bool IsWindowFullscreen(void); // Check if window is currently fullscreen + RLAPI bool IsWindowHidden(void); // Check if window is currently hidden (only PLATFORM_DESKTOP) + RLAPI bool IsWindowMinimized(void); // Check if window is currently minimized (only PLATFORM_DESKTOP) + RLAPI bool IsWindowMaximized(void); // Check if window is currently maximized (only PLATFORM_DESKTOP) + RLAPI bool IsWindowFocused(void); // Check if window is currently focused (only PLATFORM_DESKTOP) + RLAPI bool IsWindowResized(void); // Check if window has been resized last frame + RLAPI bool IsWindowState(unsigned int flag); // Check if one specific window flag is enabled + RLAPI void SetWindowState(unsigned int flags); // Set window configuration state using flags + RLAPI void ClearWindowState(unsigned int flags); // Clear window configuration state flags + RLAPI void ToggleFullscreen(void); // Toggle window state: fullscreen/windowed (only PLATFORM_DESKTOP) + RLAPI void MaximizeWindow(void); // Set window state: maximized, if resizable (only PLATFORM_DESKTOP) + RLAPI void MinimizeWindow(void); // Set window state: minimized, if resizable (only PLATFORM_DESKTOP) + RLAPI void RestoreWindow(void); // Set window state: not minimized/maximized (only PLATFORM_DESKTOP) + RLAPI void SetWindowIcon(Image image); // Set icon for window (only PLATFORM_DESKTOP) + RLAPI void SetWindowTitle(const char *title); // Set title for window (only PLATFORM_DESKTOP) + RLAPI void SetWindowPosition(int x, int y); // Set window position on screen (only PLATFORM_DESKTOP) + RLAPI void SetWindowMonitor(int monitor); // Set monitor for the current window (fullscreen mode) + RLAPI void SetWindowMinSize(int width, int height); // Set window minimum dimensions (for FLAG_WINDOW_RESIZABLE) + RLAPI void SetWindowSize(int width, int height); // Set window dimensions + RLAPI void *GetWindowHandle(void); // Get native window handle + RLAPI int GetScreenWidth(void); // Get current screen width + RLAPI int GetScreenHeight(void); // Get current screen height + RLAPI int GetMonitorCount(void); // Get number of connected monitors + RLAPI int GetCurrentMonitor(void); // Get current connected monitor + RLAPI Vector2 GetMonitorPosition(int monitor); // Get specified monitor position + RLAPI int GetMonitorWidth(int monitor); // Get specified monitor width (max available by monitor) + RLAPI int GetMonitorHeight(int monitor); // Get specified monitor height (max available by monitor) + RLAPI int GetMonitorPhysicalWidth(int monitor); // Get specified monitor physical width in millimetres + RLAPI int GetMonitorPhysicalHeight(int monitor); // Get specified monitor physical height in millimetres + RLAPI int GetMonitorRefreshRate(int monitor); // Get specified monitor refresh rate + RLAPI Vector2 GetWindowPosition(void); // Get window position XY on monitor + RLAPI Vector2 GetWindowScaleDPI(void); // Get window scale DPI factor + RLAPI const char *GetMonitorName(int monitor); // Get the human-readable, UTF-8 encoded name of the primary monitor + RLAPI void SetClipboardText(const char *text); // Set clipboard text content + RLAPI const char *GetClipboardText(void); // Get clipboard text content + + // Custom frame control functions + // NOTE: Those functions are intended for advance users that want full control over the frame processing + // By default EndDrawing() does this job: draws everything + SwapScreenBuffer() + manage frame timming + PollInputEvents() + // To avoid that behaviour and control frame processes manually, enable in config.h: SUPPORT_CUSTOM_FRAME_CONTROL + + RLAPI void SwapScreenBuffer(void); // Swap back buffer with front buffer (screen drawing) + RLAPI void PollInputEvents(void); // Register all input events + RLAPI void WaitTime(float ms); // Wait for some milliseconds (halt program execution) + + // Cursor-related functions + RLAPI void ShowCursor(void); // Shows cursor + RLAPI void HideCursor(void); // Hides cursor + RLAPI bool IsCursorHidden(void); // Check if cursor is not visible + RLAPI void EnableCursor(void); // Enables cursor (unlock cursor) + RLAPI void DisableCursor(void); // Disables cursor (lock cursor) + RLAPI bool IsCursorOnScreen(void); // Check if cursor is on the screen + + // Drawing-related functions + RLAPI void ClearBackground(Color color); // Set background color (framebuffer clear color) + RLAPI void BeginDrawing(void); // Setup canvas (framebuffer) to start drawing + RLAPI void EndDrawing(void); // End canvas drawing and swap buffers (double buffering) + RLAPI void BeginMode2D(Camera2D camera); // Begin 2D mode with custom camera (2D) + RLAPI void EndMode2D(void); // Ends 2D mode with custom camera + RLAPI void BeginMode3D(Camera3D camera); // Begin 3D mode with custom camera (3D) + RLAPI void EndMode3D(void); // Ends 3D mode and returns to default 2D orthographic mode + RLAPI void BeginTextureMode(RenderTexture2D target); // Begin drawing to render texture + RLAPI void EndTextureMode(void); // Ends drawing to render texture + RLAPI void BeginShaderMode(Shader shader); // Begin custom shader drawing + // End custom shader drawing (use default shader) + RLAPI void EndShaderMode(void); + RLAPI void BeginBlendMode(int mode); // Begin blending mode (alpha, additive, multiplied, subtract, custom) + RLAPI void EndBlendMode(void); // End blending mode (reset to default: alpha blending) + RLAPI void BeginScissorMode(int x, int y, int width, int height); // Begin scissor mode (define screen area for following drawing) + RLAPI void EndScissorMode(void); // End scissor mode + RLAPI void BeginVrStereoMode(VrStereoConfig config); // Begin stereo rendering (requires VR simulator) + RLAPI void EndVrStereoMode(void); // End stereo rendering (requires VR simulator) + + // VR stereo config functions for VR simulator + RLAPI VrStereoConfig LoadVrStereoConfig(VrDeviceInfo device); // Load VR stereo config for VR simulator device parameters + RLAPI void UnloadVrStereoConfig(VrStereoConfig config); // Unload VR stereo config + + // Shader management functions + // NOTE: Shader functionality is not available on OpenGL 1.1 + RLAPI Shader LoadShader(const char *vsFileName, const char *fsFileName); // Load shader from files and bind default locations + RLAPI Shader LoadShaderFromMemory(const char *vsCode, const char *fsCode); // Load shader from code strings and bind default locations + RLAPI int GetShaderLocation(Shader shader, const char *uniformName); // Get shader uniform location + RLAPI int GetShaderLocationAttrib(Shader shader, const char *attribName); // Get shader attribute location + RLAPI void SetShaderValue(Shader shader, int locIndex, const void *value, int uniformType); // Set shader uniform value + RLAPI void SetShaderValueV(Shader shader, int locIndex, const void *value, int uniformType, int count); // Set shader uniform value vector + RLAPI void SetShaderValueMatrix(Shader shader, int locIndex, Matrix mat); // Set shader uniform value (matrix 4x4) + RLAPI void SetShaderValueTexture(Shader shader, int locIndex, Texture2D texture); // Set shader uniform value for texture (sampler2d) + RLAPI void UnloadShader(Shader shader); // Unload shader from GPU memory (VRAM) + + // Screen-space-related functions + RLAPI Ray GetMouseRay(Vector2 mousePosition, Camera camera); // Get a ray trace from mouse position + RLAPI Matrix GetCameraMatrix(Camera camera); // Get camera transform matrix (view matrix) + RLAPI Matrix GetCameraMatrix2D(Camera2D camera); // Get camera 2d transform matrix + RLAPI Vector2 GetWorldToScreen(Vector3 position, Camera camera); // Get the screen space position for a 3d world space position + RLAPI Vector2 GetWorldToScreenEx(Vector3 position, Camera camera, int width, int height); // Get size position for a 3d world space position + RLAPI Vector2 GetWorldToScreen2D(Vector2 position, Camera2D camera); // Get the screen space position for a 2d camera world space position + RLAPI Vector2 GetScreenToWorld2D(Vector2 position, Camera2D camera); // Get the world space position for a 2d camera screen space position + + // Timing-related functions + RLAPI void SetTargetFPS(int fps); // Set target FPS (maximum) + RLAPI int GetFPS(void); // Get current FPS + RLAPI float GetFrameTime(void); // Get time in seconds for last frame drawn (delta time) + RLAPI double GetTime(void); // Get elapsed time in seconds since InitWindow() + + // Misc. functions + RLAPI int GetRandomValue(int min, int max); // Get a random value between min and max (both included) + RLAPI void SetRandomSeed(unsigned int seed); // Set the seed for the random number generator + RLAPI void TakeScreenshot(const char *fileName); // Takes a screenshot of current screen (filename extension defines format) + RLAPI void SetConfigFlags(unsigned int flags); // Setup init configuration flags (view FLAGS) + + RLAPI void TraceLog(int logLevel, const char *text, ...); // Show trace log messages (LOG_DEBUG, LOG_INFO, LOG_WARNING, LOG_ERROR...) + RLAPI void SetTraceLogLevel(int logLevel); // Set the current threshold (minimum) log level + RLAPI void *MemAlloc(int size); // Internal memory allocator + RLAPI void *MemRealloc(void *ptr, int size); // Internal memory reallocator + RLAPI void MemFree(void *ptr); // Internal memory free + + // Set custom callbacks + // WARNING: Callbacks setup is intended for advance users + RLAPI void SetTraceLogCallback(TraceLogCallback callback); // Set custom trace log + RLAPI void SetLoadFileDataCallback(LoadFileDataCallback callback); // Set custom file binary data loader + RLAPI void SetSaveFileDataCallback(SaveFileDataCallback callback); // Set custom file binary data saver + RLAPI void SetLoadFileTextCallback(LoadFileTextCallback callback); // Set custom file text data loader + RLAPI void SetSaveFileTextCallback(SaveFileTextCallback callback); // Set custom file text data saver + + // Files management functions + RLAPI unsigned char *LoadFileData(const char *fileName, unsigned int *bytesRead); // Load file data as byte array (read) + RLAPI void UnloadFileData(unsigned char *data); // Unload file data allocated by LoadFileData() + RLAPI bool SaveFileData(const char *fileName, void *data, unsigned int bytesToWrite); // Save data to file from byte array (write), returns true on success + RLAPI char *LoadFileText(const char *fileName); // Load text data from file (read), returns a '\0' terminated string + RLAPI void UnloadFileText(char *text); // Unload file text data allocated by LoadFileText() + RLAPI bool SaveFileText(const char *fileName, char *text); // Save text data to file (write), string must be '\0' terminated, returns true on success + RLAPI bool FileExists(const char *fileName); // Check if file exists + RLAPI bool DirectoryExists(const char *dirPath); // Check if a directory path exists + RLAPI bool IsFileExtension(const char *fileName, const char *ext); // Check file extension (including point: .png, .wav) + RLAPI const char *GetFileExtension(const char *fileName); // Get pointer to extension for a filename string (includes dot: '.png') + RLAPI const char *GetFileName(const char *filePath); // Get pointer to filename for a path string + RLAPI const char *GetFileNameWithoutExt(const char *filePath); // Get filename string without extension (uses static string) + RLAPI const char *GetDirectoryPath(const char *filePath); // Get full path for a given fileName with path (uses static string) + RLAPI const char *GetPrevDirectoryPath(const char *dirPath); // Get previous directory path for a given path (uses static string) + RLAPI const char *GetWorkingDirectory(void); // Get current working directory (uses static string) + RLAPI char **GetDirectoryFiles(const char *dirPath, int *count); // Get filenames in a directory path (memory should be freed) + RLAPI void ClearDirectoryFiles(void); // Clear directory files paths buffers (free memory) + RLAPI bool ChangeDirectory(const char *dir); // Change working directory, return true on success + RLAPI bool IsFileDropped(void); // Check if a file has been dropped into window + RLAPI char **GetDroppedFiles(int *count); // Get dropped files names (memory should be freed) + RLAPI void ClearDroppedFiles(void); // Clear dropped files paths buffer (free memory) + RLAPI long GetFileModTime(const char *fileName); // Get file modification time (last write time) + + // Compression/Encoding functionality + RLAPI unsigned char *CompressData(unsigned char *data, int dataLength, int *compDataLength); // Compress data (DEFLATE algorithm) + RLAPI unsigned char *DecompressData(unsigned char *compData, int compDataLength, int *dataLength); // Decompress data (DEFLATE algorithm) + RLAPI char *EncodeDataBase64(const unsigned char *data, int dataLength, int *outputLength); // Encode data to Base64 string + RLAPI unsigned char *DecodeDataBase64(unsigned char *data, int *outputLength); // Decode Base64 string data + + // Persistent storage management + RLAPI bool SaveStorageValue(unsigned int position, int value); // Save integer value to storage file (to defined position), returns true on success + RLAPI int LoadStorageValue(unsigned int position); // Load integer value from storage file (from defined position) + + RLAPI void OpenURL(const char *url); // Open URL with default system browser (if available) + + //------------------------------------------------------------------------------------ + // Input Handling Functions (Module: core) + //------------------------------------------------------------------------------------ + + // Input-related functions: keyboard + RLAPI bool IsKeyPressed(int key); // Check if a key has been pressed once + RLAPI bool IsKeyDown(int key); // Check if a key is being pressed + RLAPI bool IsKeyReleased(int key); // Check if a key has been released once + RLAPI bool IsKeyUp(int key); // Check if a key is NOT being pressed + RLAPI void SetExitKey(int key); // Set a custom key to exit program (default is ESC) + RLAPI int GetKeyPressed(void); // Get key pressed (keycode), call it multiple times for keys queued, returns 0 when the queue is empty + RLAPI int GetCharPressed(void); // Get char pressed (unicode), call it multiple times for chars queued, returns 0 when the queue is empty + + // Input-related functions: gamepads + RLAPI bool IsGamepadAvailable(int gamepad); // Check if a gamepad is available + RLAPI const char *GetGamepadName(int gamepad); // Get gamepad internal name id + RLAPI bool IsGamepadButtonPressed(int gamepad, int button); // Check if a gamepad button has been pressed once + RLAPI bool IsGamepadButtonDown(int gamepad, int button); // Check if a gamepad button is being pressed + RLAPI bool IsGamepadButtonReleased(int gamepad, int button); // Check if a gamepad button has been released once + RLAPI bool IsGamepadButtonUp(int gamepad, int button); // Check if a gamepad button is NOT being pressed + RLAPI int GetGamepadButtonPressed(void); // Get the last gamepad button pressed + RLAPI int GetGamepadAxisCount(int gamepad); // Get gamepad axis count for a gamepad + RLAPI float GetGamepadAxisMovement(int gamepad, int axis); // Get axis movement value for a gamepad axis + RLAPI int SetGamepadMappings(const char *mappings); // Set internal gamepad mappings (SDL_GameControllerDB) + + // Input-related functions: mouse + RLAPI bool IsMouseButtonPressed(int button); // Check if a mouse button has been pressed once + RLAPI bool IsMouseButtonDown(int button); // Check if a mouse button is being pressed + RLAPI bool IsMouseButtonReleased(int button); // Check if a mouse button has been released once + RLAPI bool IsMouseButtonUp(int button); // Check if a mouse button is NOT being pressed + RLAPI int GetMouseX(void); // Get mouse position X + RLAPI int GetMouseY(void); // Get mouse position Y + RLAPI Vector2 GetMousePosition(void); // Get mouse position XY + RLAPI Vector2 GetMouseDelta(void); // Get mouse delta between frames + RLAPI void SetMousePosition(int x, int y); // Set mouse position XY + RLAPI void SetMouseOffset(int offsetX, int offsetY); // Set mouse offset + RLAPI void SetMouseScale(float scaleX, float scaleY); // Set mouse scaling + RLAPI float GetMouseWheelMove(void); // Get mouse wheel movement Y + RLAPI void SetMouseCursor(int cursor); // Set mouse cursor + + // Input-related functions: touch + RLAPI int GetTouchX(void); // Get touch position X for touch point 0 (relative to screen size) + RLAPI int GetTouchY(void); // Get touch position Y for touch point 0 (relative to screen size) + RLAPI Vector2 GetTouchPosition(int index); // Get touch position XY for a touch point index (relative to screen size) + RLAPI int GetTouchPointId(int index); // Get touch point identifier for given index + RLAPI int GetTouchPointCount(void); // Get number of touch points + + //------------------------------------------------------------------------------------ + // Gestures and Touch Handling Functions (Module: rgestures) + //------------------------------------------------------------------------------------ + RLAPI void SetGesturesEnabled(unsigned int flags); // Enable a set of gestures using flags + RLAPI bool IsGestureDetected(int gesture); // Check if a gesture have been detected + RLAPI int GetGestureDetected(void); // Get latest detected gesture + RLAPI float GetGestureHoldDuration(void); // Get gesture hold time in milliseconds + RLAPI Vector2 GetGestureDragVector(void); // Get gesture drag vector + RLAPI float GetGestureDragAngle(void); // Get gesture drag angle + RLAPI Vector2 GetGesturePinchVector(void); // Get gesture pinch delta + RLAPI float GetGesturePinchAngle(void); // Get gesture pinch angle + + //------------------------------------------------------------------------------------ + // Camera System Functions (Module: rcamera) + //------------------------------------------------------------------------------------ + RLAPI void SetCameraMode(Camera camera, int mode); // Set camera mode (multiple camera modes available) + RLAPI void UpdateCamera(Camera *camera); // Update camera position for selected mode + + RLAPI void SetCameraPanControl(int keyPan); // Set camera pan key to combine with mouse movement (free camera) + RLAPI void SetCameraAltControl(int keyAlt); // Set camera alt key to combine with mouse movement (free camera) + RLAPI void SetCameraSmoothZoomControl(int keySmoothZoom); // Set camera smooth zoom key to combine with mouse (free camera) + RLAPI void SetCameraMoveControls(int keyFront, int keyBack, int keyRight, int keyLeft, int keyUp, int keyDown); // Set camera move controls (1st person and 3rd person cameras) + + //------------------------------------------------------------------------------------ + // Basic Shapes Drawing Functions (Module: shapes) + //------------------------------------------------------------------------------------ + // Set texture and rectangle to be used on shapes drawing + // NOTE: It can be useful when using basic shapes and one single font, + // defining a font char white rectangle would allow drawing everything in a single draw call + RLAPI void SetShapesTexture(Texture2D texture, Rectangle source); // Set texture and rectangle to be used on shapes drawing + + // Basic shapes drawing functions + RLAPI void DrawPixel(int posX, int posY, Color color); // Draw a pixel + RLAPI void DrawPixelV(Vector2 position, Color color); // Draw a pixel (Vector version) + RLAPI void DrawLine(int startPosX, int startPosY, int endPosX, int endPosY, Color color); // Draw a line + RLAPI void DrawLineV(Vector2 startPos, Vector2 endPos, Color color); // Draw a line (Vector version) + RLAPI void DrawLineEx(Vector2 startPos, Vector2 endPos, float thick, Color color); // Draw a line defining thickness + RLAPI void DrawLineBezier(Vector2 startPos, Vector2 endPos, float thick, Color color); // Draw a line using cubic-bezier curves in-out + RLAPI void DrawLineBezierQuad(Vector2 startPos, Vector2 endPos, Vector2 controlPos, float thick, Color color); // Draw line using quadratic bezier curves with a control point + RLAPI void DrawLineBezierCubic(Vector2 startPos, Vector2 endPos, Vector2 startControlPos, Vector2 endControlPos, float thick, Color color); // Draw line using cubic bezier curves with 2 control points + RLAPI void DrawLineStrip(Vector2 *points, int pointCount, Color color); // Draw lines sequence + RLAPI void DrawCircle(int centerX, int centerY, float radius, Color color); // Draw a color-filled circle + RLAPI void DrawCircleSector(Vector2 center, float radius, float startAngle, float endAngle, int segments, Color color); // Draw a piece of a circle + RLAPI void DrawCircleSectorLines(Vector2 center, float radius, float startAngle, float endAngle, int segments, Color color); // Draw circle sector outline + RLAPI void DrawCircleGradient(int centerX, int centerY, float radius, Color color1, Color color2); // Draw a gradient-filled circle + RLAPI void DrawCircleV(Vector2 center, float radius, Color color); // Draw a color-filled circle (Vector version) + RLAPI void DrawCircleLines(int centerX, int centerY, float radius, Color color); // Draw circle outline + RLAPI void DrawEllipse(int centerX, int centerY, float radiusH, float radiusV, Color color); // Draw ellipse + RLAPI void DrawEllipseLines(int centerX, int centerY, float radiusH, float radiusV, Color color); // Draw ellipse outline + RLAPI void DrawRing(Vector2 center, float innerRadius, float outerRadius, float startAngle, float endAngle, int segments, Color color); // Draw ring + RLAPI void DrawRingLines(Vector2 center, float innerRadius, float outerRadius, float startAngle, float endAngle, int segments, Color color); // Draw ring outline + RLAPI void DrawRectangle(int posX, int posY, int width, int height, Color color); // Draw a color-filled rectangle + RLAPI void DrawRectangleV(Vector2 position, Vector2 size, Color color); // Draw a color-filled rectangle (Vector version) + RLAPI void DrawRectangleRec(Rectangle rec, Color color); // Draw a color-filled rectangle + RLAPI void DrawRectanglePro(Rectangle rec, Vector2 origin, float rotation, Color color); // Draw a color-filled rectangle with pro parameters + RLAPI void DrawRectangleGradientV(int posX, int posY, int width, int height, Color color1, Color color2); // Draw a vertical-gradient-filled rectangle + RLAPI void DrawRectangleGradientH(int posX, int posY, int width, int height, Color color1, Color color2); // Draw a horizontal-gradient-filled rectangle + RLAPI void DrawRectangleGradientEx(Rectangle rec, Color col1, Color col2, Color col3, Color col4); // Draw a gradient-filled rectangle with custom vertex colors + RLAPI void DrawRectangleLines(int posX, int posY, int width, int height, Color color); // Draw rectangle outline + RLAPI void DrawRectangleLinesEx(Rectangle rec, float lineThick, Color color); // Draw rectangle outline with extended parameters + RLAPI void DrawRectangleRounded(Rectangle rec, float roundness, int segments, Color color); // Draw rectangle with rounded edges + RLAPI void DrawRectangleRoundedLines(Rectangle rec, float roundness, int segments, float lineThick, Color color); // Draw rectangle with rounded edges outline + RLAPI void DrawTriangle(Vector2 v1, Vector2 v2, Vector2 v3, Color color); // Draw a color-filled triangle (vertex in counter-clockwise order!) + RLAPI void DrawTriangleLines(Vector2 v1, Vector2 v2, Vector2 v3, Color color); // Draw triangle outline (vertex in counter-clockwise order!) + RLAPI void DrawTriangleFan(Vector2 *points, int pointCount, Color color); // Draw a triangle fan defined by points (first vertex is the center) + RLAPI void DrawTriangleStrip(Vector2 *points, int pointCount, Color color); // Draw a triangle strip defined by points + RLAPI void DrawPoly(Vector2 center, int sides, float radius, float rotation, Color color); // Draw a regular polygon (Vector version) + RLAPI void DrawPolyLines(Vector2 center, int sides, float radius, float rotation, Color color); // Draw a polygon outline of n sides + RLAPI void DrawPolyLinesEx(Vector2 center, int sides, float radius, float rotation, float lineThick, Color color); // Draw a polygon outline of n sides with extended parameters + + // Basic shapes collision detection functions + RLAPI bool CheckCollisionRecs(Rectangle rec1, Rectangle rec2); // Check collision between two rectangles + RLAPI bool CheckCollisionCircles(Vector2 center1, float radius1, Vector2 center2, float radius2); // Check collision between two circles + RLAPI bool CheckCollisionCircleRec(Vector2 center, float radius, Rectangle rec); // Check collision between circle and rectangle + RLAPI bool CheckCollisionPointRec(Vector2 point, Rectangle rec); // Check if point is inside rectangle + RLAPI bool CheckCollisionPointCircle(Vector2 point, Vector2 center, float radius); // Check if point is inside circle + RLAPI bool CheckCollisionPointTriangle(Vector2 point, Vector2 p1, Vector2 p2, Vector2 p3); // Check if point is inside a triangle + RLAPI bool CheckCollisionLines(Vector2 startPos1, Vector2 endPos1, Vector2 startPos2, Vector2 endPos2, Vector2 *collisionPoint); // Check the collision between two lines defined by two points each, returns collision point by reference + RLAPI bool CheckCollisionPointLine(Vector2 point, Vector2 p1, Vector2 p2, int threshold); // Check if point belongs to line created between two points [p1] and [p2] with defined margin in pixels [threshold] + RLAPI Rectangle GetCollisionRec(Rectangle rec1, Rectangle rec2); // Get collision rectangle for two rectangles collision + + //------------------------------------------------------------------------------------ + // Texture Loading and Drawing Functions (Module: textures) + //------------------------------------------------------------------------------------ + + // Image loading functions + // NOTE: This functions do not require GPU access + RLAPI Image LoadImage(const char *fileName); // Load image from file into CPU memory (RAM) + RLAPI Image LoadImageRaw(const char *fileName, int width, int height, int format, int headerSize); // Load image from RAW file data + RLAPI Image LoadImageAnim(const char *fileName, int *frames); // Load image sequence from file (frames appended to image.data) + RLAPI Image LoadImageFromMemory(const char *fileType, const unsigned char *fileData, int dataSize); // Load image from memory buffer, fileType refers to extension: i.e. '.png' + RLAPI Image LoadImageFromTexture(Texture2D texture); // Load image from GPU texture data + RLAPI Image LoadImageFromScreen(void); // Load image from screen buffer and (screenshot) + RLAPI void UnloadImage(Image image); // Unload image from CPU memory (RAM) + RLAPI bool ExportImage(Image image, const char *fileName); // Export image data to file, returns true on success + RLAPI bool ExportImageAsCode(Image image, const char *fileName); // Export image as code file defining an array of bytes, returns true on success + + // Image generation functions + RLAPI Image GenImageColor(int width, int height, Color color); // Generate image: plain color + RLAPI Image GenImageGradientV(int width, int height, Color top, Color bottom); // Generate image: vertical gradient + RLAPI Image GenImageGradientH(int width, int height, Color left, Color right); // Generate image: horizontal gradient + RLAPI Image GenImageGradientRadial(int width, int height, float density, Color inner, Color outer); // Generate image: radial gradient + RLAPI Image GenImageChecked(int width, int height, int checksX, int checksY, Color col1, Color col2); // Generate image: checked + RLAPI Image GenImageWhiteNoise(int width, int height, float factor); // Generate image: white noise + RLAPI Image GenImageCellular(int width, int height, int tileSize); // Generate image: cellular algorithm, bigger tileSize means bigger cells + + // Image manipulation functions + RLAPI Image ImageCopy(Image image); // Create an image duplicate (useful for transformations) + RLAPI Image ImageFromImage(Image image, Rectangle rec); // Create an image from another image piece + RLAPI Image ImageText(const char *text, int fontSize, Color color); // Create an image from text (default font) + RLAPI Image ImageTextEx(Font font, const char *text, float fontSize, float spacing, Color tint); // Create an image from text (custom sprite font) + RLAPI void ImageFormat(Image *image, int newFormat); // Convert image data to desired format + RLAPI void ImageToPOT(Image *image, Color fill); // Convert image to POT (power-of-two) + RLAPI void ImageCrop(Image *image, Rectangle crop); // Crop an image to a defined rectangle + RLAPI void ImageAlphaCrop(Image *image, float threshold); // Crop image depending on alpha value + RLAPI void ImageAlphaClear(Image *image, Color color, float threshold); // Clear alpha channel to desired color + RLAPI void ImageAlphaMask(Image *image, Image alphaMask); // Apply alpha mask to image + RLAPI void ImageAlphaPremultiply(Image *image); // Premultiply alpha channel + RLAPI void ImageResize(Image *image, int newWidth, int newHeight); // Resize image (Bicubic scaling algorithm) + RLAPI void ImageResizeNN(Image *image, int newWidth, int newHeight); // Resize image (Nearest-Neighbor scaling algorithm) + RLAPI void ImageResizeCanvas(Image *image, int newWidth, int newHeight, int offsetX, int offsetY, Color fill); // Resize canvas and fill with color + RLAPI void ImageMipmaps(Image *image); // Compute all mipmap levels for a provided image + RLAPI void ImageDither(Image *image, int rBpp, int gBpp, int bBpp, int aBpp); // Dither image data to 16bpp or lower (Floyd-Steinberg dithering) + RLAPI void ImageFlipVertical(Image *image); // Flip image vertically + RLAPI void ImageFlipHorizontal(Image *image); // Flip image horizontally + RLAPI void ImageRotateCW(Image *image); // Rotate image clockwise 90deg + RLAPI void ImageRotateCCW(Image *image); // Rotate image counter-clockwise 90deg + RLAPI void ImageColorTint(Image *image, Color color); // Modify image color: tint + RLAPI void ImageColorInvert(Image *image); // Modify image color: invert + RLAPI void ImageColorGrayscale(Image *image); // Modify image color: grayscale + RLAPI void ImageColorContrast(Image *image, float contrast); // Modify image color: contrast (-100 to 100) + RLAPI void ImageColorBrightness(Image *image, int brightness); // Modify image color: brightness (-255 to 255) + RLAPI void ImageColorReplace(Image *image, Color color, Color replace); // Modify image color: replace color + RLAPI Color *LoadImageColors(Image image); // Load color data from image as a Color array (RGBA - 32bit) + RLAPI Color *LoadImagePalette(Image image, int maxPaletteSize, int *colorCount); // Load colors palette from image as a Color array (RGBA - 32bit) + RLAPI void UnloadImageColors(Color *colors); // Unload color data loaded with LoadImageColors() + RLAPI void UnloadImagePalette(Color *colors); // Unload colors palette loaded with LoadImagePalette() + RLAPI Rectangle GetImageAlphaBorder(Image image, float threshold); // Get image alpha border rectangle + RLAPI Color GetImageColor(Image image, int x, int y); // Get image pixel color at (x, y) position + + // Image drawing functions + // NOTE: Image software-rendering functions (CPU) + RLAPI void ImageClearBackground(Image *dst, Color color); // Clear image background with given color + RLAPI void ImageDrawPixel(Image *dst, int posX, int posY, Color color); // Draw pixel within an image + RLAPI void ImageDrawPixelV(Image *dst, Vector2 position, Color color); // Draw pixel within an image (Vector version) + RLAPI void ImageDrawLine(Image *dst, int startPosX, int startPosY, int endPosX, int endPosY, Color color); // Draw line within an image + RLAPI void ImageDrawLineV(Image *dst, Vector2 start, Vector2 end, Color color); // Draw line within an image (Vector version) + RLAPI void ImageDrawCircle(Image *dst, int centerX, int centerY, int radius, Color color); // Draw circle within an image + RLAPI void ImageDrawCircleV(Image *dst, Vector2 center, int radius, Color color); // Draw circle within an image (Vector version) + RLAPI void ImageDrawRectangle(Image *dst, int posX, int posY, int width, int height, Color color); // Draw rectangle within an image + RLAPI void ImageDrawRectangleV(Image *dst, Vector2 position, Vector2 size, Color color); // Draw rectangle within an image (Vector version) + RLAPI void ImageDrawRectangleRec(Image *dst, Rectangle rec, Color color); // Draw rectangle within an image + RLAPI void ImageDrawRectangleLines(Image *dst, Rectangle rec, int thick, Color color); // Draw rectangle lines within an image + RLAPI void ImageDraw(Image *dst, Image src, Rectangle srcRec, Rectangle dstRec, Color tint); // Draw a source image within a destination image (tint applied to source) + RLAPI void ImageDrawText(Image *dst, const char *text, int posX, int posY, int fontSize, Color color); // Draw text (using default font) within an image (destination) + RLAPI void ImageDrawTextEx(Image *dst, Font font, const char *text, Vector2 position, float fontSize, float spacing, Color tint); // Draw text (custom sprite font) within an image (destination) + + // Texture loading functions + // NOTE: These functions require GPU access + RLAPI Texture2D LoadTexture(const char *fileName); // Load texture from file into GPU memory (VRAM) + RLAPI Texture2D LoadTextureFromImage(Image image); // Load texture from image data + RLAPI TextureCubemap LoadTextureCubemap(Image image, int layout); // Load cubemap from image, multiple image cubemap layouts supported + RLAPI RenderTexture2D LoadRenderTexture(int width, int height); // Load texture for rendering (framebuffer) + RLAPI void UnloadTexture(Texture2D texture); // Unload texture from GPU memory (VRAM) + RLAPI void UnloadRenderTexture(RenderTexture2D target); // Unload render texture from GPU memory (VRAM) + RLAPI void UpdateTexture(Texture2D texture, const void *pixels); // Update GPU texture with new data + RLAPI void UpdateTextureRec(Texture2D texture, Rectangle rec, const void *pixels); // Update GPU texture rectangle with new data + + // Texture configuration functions + RLAPI void GenTextureMipmaps(Texture2D *texture); // Generate GPU mipmaps for a texture + RLAPI void SetTextureFilter(Texture2D texture, int filter); // Set texture scaling filter mode + RLAPI void SetTextureWrap(Texture2D texture, int wrap); // Set texture wrapping mode + + // Texture drawing functions + RLAPI void DrawTexture(Texture2D texture, int posX, int posY, Color tint); // Draw a Texture2D + RLAPI void DrawTextureV(Texture2D texture, Vector2 position, Color tint); // Draw a Texture2D with position defined as Vector2 + RLAPI void DrawTextureEx(Texture2D texture, Vector2 position, float rotation, float scale, Color tint); // Draw a Texture2D with extended parameters + RLAPI void DrawTextureRec(Texture2D texture, Rectangle source, Vector2 position, Color tint); // Draw a part of a texture defined by a rectangle + RLAPI void DrawTextureQuad(Texture2D texture, Vector2 tiling, Vector2 offset, Rectangle quad, Color tint); // Draw texture quad with tiling and offset parameters + RLAPI void DrawTextureTiled(Texture2D texture, Rectangle source, Rectangle dest, Vector2 origin, float rotation, float scale, Color tint); // Draw part of a texture (defined by a rectangle) with rotation and scale tiled into dest. + RLAPI void DrawTexturePro(Texture2D texture, Rectangle source, Rectangle dest, Vector2 origin, float rotation, Color tint); // Draw a part of a texture defined by a rectangle with 'pro' parameters + RLAPI void DrawTextureNPatch(Texture2D texture, NPatchInfo nPatchInfo, Rectangle dest, Vector2 origin, float rotation, Color tint); // Draws a texture (or part of it) that stretches or shrinks nicely + RLAPI void DrawTexturePoly(Texture2D texture, Vector2 center, Vector2 *points, Vector2 *texcoords, int pointCount, Color tint); // Draw a textured polygon + + // Color/pixel related functions + RLAPI Color Fade(Color color, float alpha); // Get color with alpha applied, alpha goes from 0.0f to 1.0f + RLAPI int ColorToInt(Color color); // Get hexadecimal value for a Color + RLAPI Vector4 ColorNormalize(Color color); // Get Color normalized as float [0..1] + RLAPI Color ColorFromNormalized(Vector4 normalized); // Get Color from normalized values [0..1] + RLAPI Vector3 ColorToHSV(Color color); // Get HSV values for a Color, hue [0..360], saturation/value [0..1] + RLAPI Color ColorFromHSV(float hue, float saturation, float value); // Get a Color from HSV values, hue [0..360], saturation/value [0..1] + RLAPI Color ColorAlpha(Color color, float alpha); // Get color with alpha applied, alpha goes from 0.0f to 1.0f + RLAPI Color ColorAlphaBlend(Color dst, Color src, Color tint); // Get src alpha-blended into dst color with tint + RLAPI Color GetColor(unsigned int hexValue); // Get Color structure from hexadecimal value + RLAPI Color GetPixelColor(void *srcPtr, int format); // Get Color from a source pixel pointer of certain format + RLAPI void SetPixelColor(void *dstPtr, Color color, int format); // Set color formatted into destination pixel pointer + RLAPI int GetPixelDataSize(int width, int height, int format); // Get pixel data size in bytes for certain format + + //------------------------------------------------------------------------------------ + // Font Loading and Text Drawing Functions (Module: text) + //------------------------------------------------------------------------------------ + + // Font loading/unloading functions + RLAPI Font GetFontDefault(void); // Get the default Font + RLAPI Font LoadFont(const char *fileName); // Load font from file into GPU memory (VRAM) + RLAPI Font LoadFontEx(const char *fileName, int fontSize, int *fontChars, int glyphCount); // Load font from file with extended parameters + RLAPI Font LoadFontFromImage(Image image, Color key, int firstChar); // Load font from Image (XNA style) + RLAPI Font LoadFontFromMemory(const char *fileType, const unsigned char *fileData, int dataSize, int fontSize, int *fontChars, int glyphCount); // Load font from memory buffer, fileType refers to extension: i.e. '.ttf' + RLAPI GlyphInfo *LoadFontData(const unsigned char *fileData, int dataSize, int fontSize, int *fontChars, int glyphCount, int type); // Load font data for further use + RLAPI Image GenImageFontAtlas(const GlyphInfo *chars, Rectangle **recs, int glyphCount, int fontSize, int padding, int packMethod); // Generate image font atlas using chars info + RLAPI void UnloadFontData(GlyphInfo *chars, int glyphCount); // Unload font chars info data (RAM) + RLAPI void UnloadFont(Font font); // Unload Font from GPU memory (VRAM) + + // Text drawing functions + RLAPI void DrawFPS(int posX, int posY); // Draw current FPS + RLAPI void DrawText(const char *text, int posX, int posY, int fontSize, Color color); // Draw text (using default font) + RLAPI void DrawTextEx(Font font, const char *text, Vector2 position, float fontSize, float spacing, Color tint); // Draw text using font and additional parameters + RLAPI void DrawTextPro(Font font, const char *text, Vector2 position, Vector2 origin, float rotation, float fontSize, float spacing, Color tint); // Draw text using Font and pro parameters (rotation) + RLAPI void DrawTextCodepoint(Font font, int codepoint, Vector2 position, float fontSize, Color tint); // Draw one character (codepoint) + + // Text font info functions + RLAPI int MeasureText(const char *text, int fontSize); // Measure string width for default font + RLAPI Vector2 MeasureTextEx(Font font, const char *text, float fontSize, float spacing); // Measure string size for Font + RLAPI int GetGlyphIndex(Font font, int codepoint); // Get glyph index position in font for a codepoint (unicode character), fallback to '?' if not found + RLAPI GlyphInfo GetGlyphInfo(Font font, int codepoint); // Get glyph font info data for a codepoint (unicode character), fallback to '?' if not found + RLAPI Rectangle GetGlyphAtlasRec(Font font, int codepoint); // Get glyph rectangle in font atlas for a codepoint (unicode character), fallback to '?' if not found + + // Text codepoints management functions (unicode characters) + RLAPI int *LoadCodepoints(const char *text, int *count); // Load all codepoints from a UTF-8 text string, codepoints count returned by parameter + RLAPI void UnloadCodepoints(int *codepoints); // Unload codepoints data from memory + RLAPI int GetCodepointCount(const char *text); // Get total number of codepoints in a UTF-8 encoded string + RLAPI int GetCodepoint(const char *text, int *bytesProcessed); // Get next codepoint in a UTF-8 encoded string, 0x3f('?') is returned on failure + RLAPI const char *CodepointToUTF8(int codepoint, int *byteSize); // Encode one codepoint into UTF-8 byte array (array length returned as parameter) + RLAPI char *TextCodepointsToUTF8(int *codepoints, int length); // Encode text as codepoints array into UTF-8 text string (WARNING: memory must be freed!) + + // Text strings management functions (no UTF-8 strings, only byte chars) + // NOTE: Some strings allocate memory internally for returned strings, just be careful! + RLAPI int TextCopy(char *dst, const char *src); // Copy one string to another, returns bytes copied + RLAPI bool TextIsEqual(const char *text1, const char *text2); // Check if two text string are equal + RLAPI unsigned int TextLength(const char *text); // Get text length, checks for '\0' ending + RLAPI const char *TextFormat(const char *text, ...); // Text formatting with variables (sprintf() style) + RLAPI const char *TextSubtext(const char *text, int position, int length); // Get a piece of a text string + RLAPI char *TextReplace(char *text, const char *replace, const char *by); // Replace text string (WARNING: memory must be freed!) + RLAPI char *TextInsert(const char *text, const char *insert, int position); // Insert text in a position (WARNING: memory must be freed!) + RLAPI const char *TextJoin(const char **textList, int count, const char *delimiter); // Join text strings with delimiter + RLAPI const char **TextSplit(const char *text, char delimiter, int *count); // Split text into multiple strings + RLAPI void TextAppend(char *text, const char *append, int *position); // Append text at specific position and move cursor! + RLAPI int TextFindIndex(const char *text, const char *find); // Find first text occurrence within a string + RLAPI const char *TextToUpper(const char *text); // Get upper case version of provided string + RLAPI const char *TextToLower(const char *text); // Get lower case version of provided string + RLAPI const char *TextToPascal(const char *text); // Get Pascal case notation version of provided string + RLAPI int TextToInteger(const char *text); // Get integer value from text (negative values not supported) + + //------------------------------------------------------------------------------------ + // Basic 3d Shapes Drawing Functions (Module: models) + //------------------------------------------------------------------------------------ + + // Basic geometric 3D shapes drawing functions + RLAPI void DrawLine3D(Vector3 startPos, Vector3 endPos, Color color); // Draw a line in 3D world space + RLAPI void DrawPoint3D(Vector3 position, Color color); // Draw a point in 3D space, actually a small line + RLAPI void DrawCircle3D(Vector3 center, float radius, Vector3 rotationAxis, float rotationAngle, Color color); // Draw a circle in 3D world space + RLAPI void DrawTriangle3D(Vector3 v1, Vector3 v2, Vector3 v3, Color color); // Draw a color-filled triangle (vertex in counter-clockwise order!) + RLAPI void DrawTriangleStrip3D(Vector3 *points, int pointCount, Color color); // Draw a triangle strip defined by points + RLAPI void DrawCube(Vector3 position, float width, float height, float length, Color color); // Draw cube + RLAPI void DrawCubeV(Vector3 position, Vector3 size, Color color); // Draw cube (Vector version) + RLAPI void DrawCubeWires(Vector3 position, float width, float height, float length, Color color); // Draw cube wires + RLAPI void DrawCubeWiresV(Vector3 position, Vector3 size, Color color); // Draw cube wires (Vector version) + RLAPI void DrawCubeTexture(Texture2D texture, Vector3 position, float width, float height, float length, Color color); // Draw cube textured + RLAPI void DrawCubeTextureRec(Texture2D texture, Rectangle source, Vector3 position, float width, float height, float length, Color color); // Draw cube with a region of a texture + RLAPI void DrawSphere(Vector3 centerPos, float radius, Color color); // Draw sphere + RLAPI void DrawSphereEx(Vector3 centerPos, float radius, int rings, int slices, Color color); // Draw sphere with extended parameters + RLAPI void DrawSphereWires(Vector3 centerPos, float radius, int rings, int slices, Color color); // Draw sphere wires + RLAPI void DrawCylinder(Vector3 position, float radiusTop, float radiusBottom, float height, int slices, Color color); // Draw a cylinder/cone + RLAPI void DrawCylinderEx(Vector3 startPos, Vector3 endPos, float startRadius, float endRadius, int sides, Color color); // Draw a cylinder with base at startPos and top at endPos + RLAPI void DrawCylinderWires(Vector3 position, float radiusTop, float radiusBottom, float height, int slices, Color color); // Draw a cylinder/cone wires + RLAPI void DrawCylinderWiresEx(Vector3 startPos, Vector3 endPos, float startRadius, float endRadius, int sides, Color color); // Draw a cylinder wires with base at startPos and top at endPos + RLAPI void DrawPlane(Vector3 centerPos, Vector2 size, Color color); // Draw a plane XZ + RLAPI void DrawRay(Ray ray, Color color); // Draw a ray line + RLAPI void DrawGrid(int slices, float spacing); // Draw a grid (centered at (0, 0, 0)) + + //------------------------------------------------------------------------------------ + // Model 3d Loading and Drawing Functions (Module: models) + //------------------------------------------------------------------------------------ + + // Model management functions + RLAPI Model LoadModel(const char *fileName); // Load model from files (meshes and materials) + RLAPI Model LoadModelFromMesh(Mesh mesh); // Load model from generated mesh (default material) + RLAPI void UnloadModel(Model model); // Unload model (including meshes) from memory (RAM and/or VRAM) + RLAPI void UnloadModelKeepMeshes(Model model); // Unload model (but not meshes) from memory (RAM and/or VRAM) + RLAPI BoundingBox GetModelBoundingBox(Model model); // Compute model bounding box limits (considers all meshes) + + // Model drawing functions + RLAPI void DrawModel(Model model, Vector3 position, float scale, Color tint); // Draw a model (with texture if set) + RLAPI void DrawModelEx(Model model, Vector3 position, Vector3 rotationAxis, float rotationAngle, Vector3 scale, Color tint); // Draw a model with extended parameters + RLAPI void DrawModelWires(Model model, Vector3 position, float scale, Color tint); // Draw a model wires (with texture if set) + RLAPI void DrawModelWiresEx(Model model, Vector3 position, Vector3 rotationAxis, float rotationAngle, Vector3 scale, Color tint); // Draw a model wires (with texture if set) with extended parameters + RLAPI void DrawBoundingBox(BoundingBox box, Color color); // Draw bounding box (wires) + RLAPI void DrawBillboard(Camera camera, Texture2D texture, Vector3 position, float size, Color tint); // Draw a billboard texture + RLAPI void DrawBillboardRec(Camera camera, Texture2D texture, Rectangle source, Vector3 position, Vector2 size, Color tint); // Draw a billboard texture defined by source + RLAPI void DrawBillboardPro(Camera camera, Texture2D texture, Rectangle source, Vector3 position, Vector3 up, Vector2 size, Vector2 origin, float rotation, Color tint); // Draw a billboard texture defined by source and rotation + + // Mesh management functions + RLAPI void UploadMesh(Mesh *mesh, bool dynamic); // Upload mesh vertex data in GPU and provide VAO/VBO ids + RLAPI void UpdateMeshBuffer(Mesh mesh, int index, void *data, int dataSize, int offset); // Update mesh vertex data in GPU for a specific buffer index + RLAPI void UnloadMesh(Mesh mesh); // Unload mesh data from CPU and GPU + RLAPI void DrawMesh(Mesh mesh, Material material, Matrix transform); // Draw a 3d mesh with material and transform + RLAPI void DrawMeshInstanced(Mesh mesh, Material material, Matrix *transforms, int instances); // Draw multiple mesh instances with material and different transforms + RLAPI bool ExportMesh(Mesh mesh, const char *fileName); // Export mesh data to file, returns true on success + RLAPI BoundingBox GetMeshBoundingBox(Mesh mesh); // Compute mesh bounding box limits + RLAPI void GenMeshTangents(Mesh *mesh); // Compute mesh tangents + RLAPI void GenMeshBinormals(Mesh *mesh); // Compute mesh binormals + + // Mesh generation functions + RLAPI Mesh GenMeshPoly(int sides, float radius); // Generate polygonal mesh + RLAPI Mesh GenMeshPlane(float width, float length, int resX, int resZ); // Generate plane mesh (with subdivisions) + RLAPI Mesh GenMeshCube(float width, float height, float length); // Generate cuboid mesh + RLAPI Mesh GenMeshSphere(float radius, int rings, int slices); // Generate sphere mesh (standard sphere) + RLAPI Mesh GenMeshHemiSphere(float radius, int rings, int slices); // Generate half-sphere mesh (no bottom cap) + RLAPI Mesh GenMeshCylinder(float radius, float height, int slices); // Generate cylinder mesh + RLAPI Mesh GenMeshCone(float radius, float height, int slices); // Generate cone/pyramid mesh + RLAPI Mesh GenMeshTorus(float radius, float size, int radSeg, int sides); // Generate torus mesh + RLAPI Mesh GenMeshKnot(float radius, float size, int radSeg, int sides); // Generate trefoil knot mesh + RLAPI Mesh GenMeshHeightmap(Image heightmap, Vector3 size); // Generate heightmap mesh from image data + RLAPI Mesh GenMeshCubicmap(Image cubicmap, Vector3 cubeSize); // Generate cubes-based map mesh from image data + + // Material loading/unloading functions + RLAPI Material *LoadMaterials(const char *fileName, int *materialCount); // Load materials from model file + RLAPI Material LoadMaterialDefault(void); // Load default material (Supports: DIFFUSE, SPECULAR, NORMAL maps) + RLAPI void UnloadMaterial(Material material); // Unload material from GPU memory (VRAM) + RLAPI void SetMaterialTexture(Material *material, int mapType, Texture2D texture); // Set texture for a material map type (MATERIAL_MAP_DIFFUSE, MATERIAL_MAP_SPECULAR...) + RLAPI void SetModelMeshMaterial(Model *model, int meshId, int materialId); // Set material for a mesh + + // Model animations loading/unloading functions + RLAPI ModelAnimation *LoadModelAnimations(const char *fileName, unsigned int *animCount); // Load model animations from file + RLAPI void UpdateModelAnimation(Model model, ModelAnimation anim, int frame); // Update model animation pose + RLAPI void UnloadModelAnimation(ModelAnimation anim); // Unload animation data + RLAPI void UnloadModelAnimations(ModelAnimation *animations, unsigned int count); // Unload animation array data + RLAPI bool IsModelAnimationValid(Model model, ModelAnimation anim); // Check model animation skeleton match + + // Collision detection functions + RLAPI bool CheckCollisionSpheres(Vector3 center1, float radius1, Vector3 center2, float radius2); // Check collision between two spheres + RLAPI bool CheckCollisionBoxes(BoundingBox box1, BoundingBox box2); // Check collision between two bounding boxes + RLAPI bool CheckCollisionBoxSphere(BoundingBox box, Vector3 center, float radius); // Check collision between box and sphere + RLAPI RayCollision GetRayCollisionSphere(Ray ray, Vector3 center, float radius); // Get collision info between ray and sphere + RLAPI RayCollision GetRayCollisionBox(Ray ray, BoundingBox box); // Get collision info between ray and box + RLAPI RayCollision GetRayCollisionModel(Ray ray, Model model); // Get collision info between ray and model + RLAPI RayCollision GetRayCollisionMesh(Ray ray, Mesh mesh, Matrix transform); // Get collision info between ray and mesh + RLAPI RayCollision GetRayCollisionTriangle(Ray ray, Vector3 p1, Vector3 p2, Vector3 p3); // Get collision info between ray and triangle + RLAPI RayCollision GetRayCollisionQuad(Ray ray, Vector3 p1, Vector3 p2, Vector3 p3, Vector3 p4); // Get collision info between ray and quad + + //------------------------------------------------------------------------------------ + // Audio Loading and Playing Functions (Module: audio) + //------------------------------------------------------------------------------------ + + // Audio device management functions + RLAPI void InitAudioDevice(void); // Initialize audio device and context + RLAPI void CloseAudioDevice(void); // Close the audio device and context + RLAPI bool IsAudioDeviceReady(void); // Check if audio device has been initialized successfully + RLAPI void SetMasterVolume(float volume); // Set master volume (listener) + + // Wave/Sound loading/unloading functions + RLAPI Wave LoadWave(const char *fileName); // Load wave data from file + RLAPI Wave LoadWaveFromMemory(const char *fileType, const unsigned char *fileData, int dataSize); // Load wave from memory buffer, fileType refers to extension: i.e. '.wav' + RLAPI Sound LoadSound(const char *fileName); // Load sound from file + RLAPI Sound LoadSoundFromWave(Wave wave); // Load sound from wave data + RLAPI void UpdateSound(Sound sound, const void *data, int sampleCount); // Update sound buffer with new data + RLAPI void UnloadWave(Wave wave); // Unload wave data + RLAPI void UnloadSound(Sound sound); // Unload sound + RLAPI bool ExportWave(Wave wave, const char *fileName); // Export wave data to file, returns true on success + RLAPI bool ExportWaveAsCode(Wave wave, const char *fileName); // Export wave sample data to code (.h), returns true on success + + // Wave/Sound management functions + RLAPI void PlaySound(Sound sound); // Play a sound + RLAPI void StopSound(Sound sound); // Stop playing a sound + RLAPI void PauseSound(Sound sound); // Pause a sound + RLAPI void ResumeSound(Sound sound); // Resume a paused sound + RLAPI void PlaySoundMulti(Sound sound); // Play a sound (using multichannel buffer pool) + RLAPI void StopSoundMulti(void); // Stop any sound playing (using multichannel buffer pool) + RLAPI int GetSoundsPlaying(void); // Get number of sounds playing in the multichannel + RLAPI bool IsSoundPlaying(Sound sound); // Check if a sound is currently playing + RLAPI void SetSoundVolume(Sound sound, float volume); // Set volume for a sound (1.0 is max level) + RLAPI void SetSoundPitch(Sound sound, float pitch); // Set pitch for a sound (1.0 is base level) + RLAPI void WaveFormat(Wave *wave, int sampleRate, int sampleSize, int channels); // Convert wave data to desired format + RLAPI Wave WaveCopy(Wave wave); // Copy a wave to a new wave + RLAPI void WaveCrop(Wave *wave, int initSample, int finalSample); // Crop a wave to defined samples range + RLAPI float *LoadWaveSamples(Wave wave); // Load samples data from wave as a floats array + RLAPI void UnloadWaveSamples(float *samples); // Unload samples data loaded with LoadWaveSamples() + + // Music management functions + RLAPI Music LoadMusicStream(const char *fileName); // Load music stream from file + RLAPI Music LoadMusicStreamFromMemory(const char *fileType, unsigned char *data, int dataSize); // Load music stream from data + RLAPI void UnloadMusicStream(Music music); // Unload music stream + RLAPI void PlayMusicStream(Music music); // Start music playing + RLAPI bool IsMusicStreamPlaying(Music music); // Check if music is playing + RLAPI void UpdateMusicStream(Music music); // Updates buffers for music streaming + RLAPI void StopMusicStream(Music music); // Stop music playing + RLAPI void PauseMusicStream(Music music); // Pause music playing + RLAPI void ResumeMusicStream(Music music); // Resume playing paused music + RLAPI void SeekMusicStream(Music music, float position); // Seek music to a position (in seconds) + RLAPI void SetMusicVolume(Music music, float volume); // Set volume for music (1.0 is max level) + RLAPI void SetMusicPitch(Music music, float pitch); // Set pitch for a music (1.0 is base level) + RLAPI float GetMusicTimeLength(Music music); // Get music time length (in seconds) + RLAPI float GetMusicTimePlayed(Music music); // Get current music time played (in seconds) + + // AudioStream management functions + RLAPI AudioStream LoadAudioStream(unsigned int sampleRate, unsigned int sampleSize, unsigned int channels); // Load audio stream (to stream raw audio pcm data) + RLAPI void UnloadAudioStream(AudioStream stream); // Unload audio stream and free memory + RLAPI void UpdateAudioStream(AudioStream stream, const void *data, int frameCount); // Update audio stream buffers with data + RLAPI bool IsAudioStreamProcessed(AudioStream stream); // Check if any audio stream buffers requires refill + RLAPI void PlayAudioStream(AudioStream stream); // Play audio stream + RLAPI void PauseAudioStream(AudioStream stream); // Pause audio stream + RLAPI void ResumeAudioStream(AudioStream stream); // Resume audio stream + RLAPI bool IsAudioStreamPlaying(AudioStream stream); // Check if audio stream is playing + RLAPI void StopAudioStream(AudioStream stream); // Stop audio stream + RLAPI void SetAudioStreamVolume(AudioStream stream, float volume); // Set volume for audio stream (1.0 is max level) + RLAPI void SetAudioStreamPitch(AudioStream stream, float pitch); // Set pitch for audio stream (1.0 is base level) + RLAPI void SetAudioStreamBufferSizeDefault(int size); // Default size for new audio streams + +#if defined(__cplusplus) +} +#endif + +#endif // RAYLIB_H diff --git a/include/raymath.h b/include/raymath.h new file mode 100644 index 0000000..48846a7 --- /dev/null +++ b/include/raymath.h @@ -0,0 +1,1853 @@ +/********************************************************************************************** +* +* raymath v1.5 - Math functions to work with Vector2, Vector3, Matrix and Quaternions +* +* CONFIGURATION: +* +* #define RAYMATH_IMPLEMENTATION +* Generates the implementation of the library into the included file. +* If not defined, the library is in header only mode and can be included in other headers +* or source files without problems. But only ONE file should hold the implementation. +* +* #define RAYMATH_STATIC_INLINE +* Define static inline functions code, so #include header suffices for use. +* This may use up lots of memory. +* +* CONVENTIONS: +* +* - Functions are always self-contained, no function use another raymath function inside, +* required code is directly re-implemented inside +* - Functions input parameters are always received by value (2 unavoidable exceptions) +* - Functions use always a "result" anmed variable for return +* - Functions are always defined inline +* - Angles are always in radians (DEG2RAD/RAD2DEG macros provided for convenience) +* +* +* LICENSE: zlib/libpng +* +* Copyright (c) 2015-2021 Ramon Santamaria (@raysan5) +* +* This software is provided "as-is", without any express or implied warranty. In no event +* will the authors be held liable for any damages arising from the use of this software. +* +* Permission is granted to anyone to use this software for any purpose, including commercial +* applications, and to alter it and redistribute it freely, subject to the following restrictions: +* +* 1. The origin of this software must not be misrepresented; you must not claim that you +* wrote the original software. If you use this software in a product, an acknowledgment +* in the product documentation would be appreciated but is not required. +* +* 2. Altered source versions must be plainly marked as such, and must not be misrepresented +* as being the original software. +* +* 3. This notice may not be removed or altered from any source distribution. +* +**********************************************************************************************/ + +#ifndef RAYMATH_H +#define RAYMATH_H + +#if defined(RAYMATH_IMPLEMENTATION) && defined(RAYMATH_STATIC_INLINE) + #error "Specifying both RAYMATH_IMPLEMENTATION and RAYMATH_STATIC_INLINE is contradictory" +#endif + +// Function specifiers definition +#if defined(RAYMATH_IMPLEMENTATION) + #if defined(_WIN32) && defined(BUILD_LIBTYPE_SHARED) + #define RMAPI __declspec(dllexport) extern inline // We are building raylib as a Win32 shared library (.dll). + #elif defined(_WIN32) && defined(USE_LIBTYPE_SHARED) + #define RMAPI __declspec(dllimport) // We are using raylib as a Win32 shared library (.dll) + #else + #define RMAPI extern inline // Provide external definition + #endif +#elif defined(RAYMATH_STATIC_INLINE) + #define RMAPI static inline // Functions may be inlined, no external out-of-line definition +#else + #if defined(__TINYC__) + #define RMAPI static inline // plain inline not supported by tinycc (See issue #435) + #else + #define RMAPI inline // Functions may be inlined or external definition used + #endif +#endif + +//---------------------------------------------------------------------------------- +// Defines and Macros +//---------------------------------------------------------------------------------- +#ifndef PI + #define PI 3.14159265358979323846f +#endif + +#ifndef DEG2RAD + #define DEG2RAD (PI/180.0f) +#endif + +#ifndef RAD2DEG + #define RAD2DEG (180.0f/PI) +#endif + +// Get float vector for Matrix +#ifndef MatrixToFloat + #define MatrixToFloat(mat) (MatrixToFloatV(mat).v) +#endif + +// Get float vector for Vector3 +#ifndef Vector3ToFloat + #define Vector3ToFloat(vec) (Vector3ToFloatV(vec).v) +#endif + +//---------------------------------------------------------------------------------- +// Types and Structures Definition +//---------------------------------------------------------------------------------- +#if !defined(RL_VECTOR2_TYPE) +// Vector2 type +typedef struct Vector2 { + float x; + float y; +} Vector2; +#define RL_VECTOR2_TYPE +#endif + +#if !defined(RL_VECTOR3_TYPE) +// Vector3 type +typedef struct Vector3 { + float x; + float y; + float z; +} Vector3; +#define RL_VECTOR3_TYPE +#endif + +#if !defined(RL_VECTOR4_TYPE) +// Vector4 type +typedef struct Vector4 { + float x; + float y; + float z; + float w; +} Vector4; +#define RL_VECTOR4_TYPE +#endif + +#if !defined(RL_QUATERNION_TYPE) +// Quaternion type +typedef Vector4 Quaternion; +#define RL_QUATERNION_TYPE +#endif + +#if !defined(RL_MATRIX_TYPE) +// Matrix type (OpenGL style 4x4 - right handed, column major) +typedef struct Matrix { + float m0, m4, m8, m12; // Matrix first row (4 components) + float m1, m5, m9, m13; // Matrix second row (4 components) + float m2, m6, m10, m14; // Matrix third row (4 components) + float m3, m7, m11, m15; // Matrix fourth row (4 components) +} Matrix; +#define RL_MATRIX_TYPE +#endif + +// NOTE: Helper types to be used instead of array return types for *ToFloat functions +typedef struct float3 { + float v[3]; +} float3; + +typedef struct float16 { + float v[16]; +} float16; + +#include // Required for: sinf(), cosf(), tan(), atan2f(), sqrtf(), fminf(), fmaxf(), fabs() + +//---------------------------------------------------------------------------------- +// Module Functions Definition - Utils math +//---------------------------------------------------------------------------------- + +// Clamp float value +RMAPI float Clamp(float value, float min, float max) +{ + float result = (value < min)? min : value; + + if (result > max) result = max; + + return result; +} + +// Calculate linear interpolation between two floats +RMAPI float Lerp(float start, float end, float amount) +{ + float result = start + amount*(end - start); + + return result; +} + +// Normalize input value within input range +RMAPI float Normalize(float value, float start, float end) +{ + float result = (value - start)/(end - start); + + return result; +} + +// Remap input value within input range to output range +RMAPI float Remap(float value, float inputStart, float inputEnd, float outputStart, float outputEnd) +{ + float result =(value - inputStart)/(inputEnd - inputStart)*(outputEnd - outputStart) + outputStart; + + return result; +} + +//---------------------------------------------------------------------------------- +// Module Functions Definition - Vector2 math +//---------------------------------------------------------------------------------- + +// Vector with components value 0.0f +RMAPI Vector2 Vector2Zero(void) +{ + Vector2 result = { 0.0f, 0.0f }; + + return result; +} + +// Vector with components value 1.0f +RMAPI Vector2 Vector2One(void) +{ + Vector2 result = { 1.0f, 1.0f }; + + return result; +} + +// Add two vectors (v1 + v2) +RMAPI Vector2 Vector2Add(Vector2 v1, Vector2 v2) +{ + Vector2 result = { v1.x + v2.x, v1.y + v2.y }; + + return result; +} + +// Add vector and float value +RMAPI Vector2 Vector2AddValue(Vector2 v, float add) +{ + Vector2 result = { v.x + add, v.y + add }; + + return result; +} + +// Subtract two vectors (v1 - v2) +RMAPI Vector2 Vector2Subtract(Vector2 v1, Vector2 v2) +{ + Vector2 result = { v1.x - v2.x, v1.y - v2.y }; + + return result; +} + +// Subtract vector by float value +RMAPI Vector2 Vector2SubtractValue(Vector2 v, float sub) +{ + Vector2 result = { v.x - sub, v.y - sub }; + + return result; +} + +// Calculate vector length +RMAPI float Vector2Length(Vector2 v) +{ + float result = sqrtf((v.x*v.x) + (v.y*v.y)); + + return result; +} + +// Calculate vector square length +RMAPI float Vector2LengthSqr(Vector2 v) +{ + float result = (v.x*v.x) + (v.y*v.y); + + return result; +} + +// Calculate two vectors dot product +RMAPI float Vector2DotProduct(Vector2 v1, Vector2 v2) +{ + float result = (v1.x*v2.x + v1.y*v2.y); + + return result; +} + +// Calculate distance between two vectors +RMAPI float Vector2Distance(Vector2 v1, Vector2 v2) +{ + float result = sqrtf((v1.x - v2.x)*(v1.x - v2.x) + (v1.y - v2.y)*(v1.y - v2.y)); + + return result; +} + +// Calculate angle from two vectors in X-axis +RMAPI float Vector2Angle(Vector2 v1, Vector2 v2) +{ + float result = atan2f(v2.y - v1.y, v2.x - v1.x)*(180.0f/PI); + + if (result < 0) result += 360.0f; + + return result; +} + +// Scale vector (multiply by value) +RMAPI Vector2 Vector2Scale(Vector2 v, float scale) +{ + Vector2 result = { v.x*scale, v.y*scale }; + + return result; +} + +// Multiply vector by vector +RMAPI Vector2 Vector2Multiply(Vector2 v1, Vector2 v2) +{ + Vector2 result = { v1.x*v2.x, v1.y*v2.y }; + + return result; +} + +// Negate vector +RMAPI Vector2 Vector2Negate(Vector2 v) +{ + Vector2 result = { -v.x, -v.y }; + + return result; +} + +// Divide vector by vector +RMAPI Vector2 Vector2Divide(Vector2 v1, Vector2 v2) +{ + Vector2 result = { v1.x/v2.x, v1.y/v2.y }; + + return result; +} + +// Normalize provided vector +RMAPI Vector2 Vector2Normalize(Vector2 v) +{ + Vector2 result = { 0 }; + float length = sqrtf((v.x*v.x) + (v.y*v.y)); + + if (length > 0) + { + result.x = v.x*1.0f/length; + result.y = v.y*1.0f/length; + } + + return result; +} + +// Calculate linear interpolation between two vectors +RMAPI Vector2 Vector2Lerp(Vector2 v1, Vector2 v2, float amount) +{ + Vector2 result = { 0 }; + + result.x = v1.x + amount*(v2.x - v1.x); + result.y = v1.y + amount*(v2.y - v1.y); + + return result; +} + +// Calculate reflected vector to normal +RMAPI Vector2 Vector2Reflect(Vector2 v, Vector2 normal) +{ + Vector2 result = { 0 }; + + float dotProduct = (v.x*normal.x + v.y*normal.y); // Dot product + + result.x = v.x - (2.0f*normal.x)*dotProduct; + result.y = v.y - (2.0f*normal.y)*dotProduct; + + return result; +} + +// Rotate vector by angle +RMAPI Vector2 Vector2Rotate(Vector2 v, float angle) +{ + Vector2 result = { 0 }; + + result.x = v.x*cosf(angle) - v.y*sinf(angle); + result.y = v.x*sinf(angle) + v.y*cosf(angle); + + return result; +} + +// Move Vector towards target +RMAPI Vector2 Vector2MoveTowards(Vector2 v, Vector2 target, float maxDistance) +{ + Vector2 result = { 0 }; + + float dx = target.x - v.x; + float dy = target.y - v.y; + float value = (dx*dx) + (dy*dy); + + if ((value == 0) || ((maxDistance >= 0) && (value <= maxDistance*maxDistance))) return target; + + float dist = sqrtf(value); + + result.x = v.x + dx/dist*maxDistance; + result.y = v.y + dy/dist*maxDistance; + + return result; +} + +//---------------------------------------------------------------------------------- +// Module Functions Definition - Vector3 math +//---------------------------------------------------------------------------------- + +// Vector with components value 0.0f +RMAPI Vector3 Vector3Zero(void) +{ + Vector3 result = { 0.0f, 0.0f, 0.0f }; + + return result; +} + +// Vector with components value 1.0f +RMAPI Vector3 Vector3One(void) +{ + Vector3 result = { 1.0f, 1.0f, 1.0f }; + + return result; +} + +// Add two vectors +RMAPI Vector3 Vector3Add(Vector3 v1, Vector3 v2) +{ + Vector3 result = { v1.x + v2.x, v1.y + v2.y, v1.z + v2.z }; + + return result; +} + +// Add vector and float value +RMAPI Vector3 Vector3AddValue(Vector3 v, float add) +{ + Vector3 result = { v.x + add, v.y + add, v.z + add }; + + return result; +} + +// Subtract two vectors +RMAPI Vector3 Vector3Subtract(Vector3 v1, Vector3 v2) +{ + Vector3 result = { v1.x - v2.x, v1.y - v2.y, v1.z - v2.z }; + + return result; +} + +// Subtract vector by float value +RMAPI Vector3 Vector3SubtractValue(Vector3 v, float sub) +{ + Vector3 result = { v.x - sub, v.y - sub, v.z - sub }; + + return result; +} + +// Multiply vector by scalar +RMAPI Vector3 Vector3Scale(Vector3 v, float scalar) +{ + Vector3 result = { v.x*scalar, v.y*scalar, v.z*scalar }; + + return result; +} + +// Multiply vector by vector +RMAPI Vector3 Vector3Multiply(Vector3 v1, Vector3 v2) +{ + Vector3 result = { v1.x*v2.x, v1.y*v2.y, v1.z*v2.z }; + + return result; +} + +// Calculate two vectors cross product +RMAPI Vector3 Vector3CrossProduct(Vector3 v1, Vector3 v2) +{ + Vector3 result = { v1.y*v2.z - v1.z*v2.y, v1.z*v2.x - v1.x*v2.z, v1.x*v2.y - v1.y*v2.x }; + + return result; +} + +// Calculate one vector perpendicular vector +RMAPI Vector3 Vector3Perpendicular(Vector3 v) +{ + Vector3 result = { 0 }; + + float min = (float) fabs(v.x); + Vector3 cardinalAxis = {1.0f, 0.0f, 0.0f}; + + if (fabs(v.y) < min) + { + min = (float) fabs(v.y); + Vector3 tmp = {0.0f, 1.0f, 0.0f}; + cardinalAxis = tmp; + } + + if (fabs(v.z) < min) + { + Vector3 tmp = {0.0f, 0.0f, 1.0f}; + cardinalAxis = tmp; + } + + // Cross product between vectors + result.x = v.y*cardinalAxis.z - v.z*cardinalAxis.y; + result.y = v.z*cardinalAxis.x - v.x*cardinalAxis.z; + result.z = v.x*cardinalAxis.y - v.y*cardinalAxis.x; + + return result; +} + +// Calculate vector length +RMAPI float Vector3Length(const Vector3 v) +{ + float result = sqrtf(v.x*v.x + v.y*v.y + v.z*v.z); + + return result; +} + +// Calculate vector square length +RMAPI float Vector3LengthSqr(const Vector3 v) +{ + float result = v.x*v.x + v.y*v.y + v.z*v.z; + + return result; +} + +// Calculate two vectors dot product +RMAPI float Vector3DotProduct(Vector3 v1, Vector3 v2) +{ + float result = (v1.x*v2.x + v1.y*v2.y + v1.z*v2.z); + + return result; +} + +// Calculate distance between two vectors +RMAPI float Vector3Distance(Vector3 v1, Vector3 v2) +{ + float result = 0.0f; + + float dx = v2.x - v1.x; + float dy = v2.y - v1.y; + float dz = v2.z - v1.z; + result = sqrtf(dx*dx + dy*dy + dz*dz); + + return result; +} + +// Calculate angle between two vectors in XY and XZ +RMAPI Vector2 Vector3Angle(Vector3 v1, Vector3 v2) +{ + Vector2 result = { 0 }; + + float dx = v2.x - v1.x; + float dy = v2.y - v1.y; + float dz = v2.z - v1.z; + + result.x = atan2f(dx, dz); // Angle in XZ + result.y = atan2f(dy, sqrtf(dx*dx + dz*dz)); // Angle in XY + + return result; +} + +// Negate provided vector (invert direction) +RMAPI Vector3 Vector3Negate(Vector3 v) +{ + Vector3 result = { -v.x, -v.y, -v.z }; + + return result; +} + +// Divide vector by vector +RMAPI Vector3 Vector3Divide(Vector3 v1, Vector3 v2) +{ + Vector3 result = { v1.x/v2.x, v1.y/v2.y, v1.z/v2.z }; + + return result; +} + +// Normalize provided vector +RMAPI Vector3 Vector3Normalize(Vector3 v) +{ + Vector3 result = v; + + float length = sqrtf(v.x*v.x + v.y*v.y + v.z*v.z); + if (length == 0.0f) length = 1.0f; + float ilength = 1.0f/length; + + result.x *= ilength; + result.y *= ilength; + result.z *= ilength; + + return result; +} + +// Orthonormalize provided vectors +// Makes vectors normalized and orthogonal to each other +// Gram-Schmidt function implementation +RMAPI void Vector3OrthoNormalize(Vector3 *v1, Vector3 *v2) +{ + float length = 0.0f; + float ilength = 0.0f; + + // Vector3Normalize(*v1); + Vector3 v = *v1; + length = sqrtf(v.x*v.x + v.y*v.y + v.z*v.z); + if (length == 0.0f) length = 1.0f; + ilength = 1.0f/length; + v1->x *= ilength; + v1->y *= ilength; + v1->z *= ilength; + + // Vector3CrossProduct(*v1, *v2) + Vector3 vn1 = { v1->y*v2->z - v1->z*v2->y, v1->z*v2->x - v1->x*v2->z, v1->x*v2->y - v1->y*v2->x }; + + // Vector3Normalize(vn1); + v = vn1; + length = sqrtf(v.x*v.x + v.y*v.y + v.z*v.z); + if (length == 0.0f) length = 1.0f; + ilength = 1.0f/length; + vn1.x *= ilength; + vn1.y *= ilength; + vn1.z *= ilength; + + // Vector3CrossProduct(vn1, *v1) + Vector3 vn2 = { vn1.y*v1->z - vn1.z*v1->y, vn1.z*v1->x - vn1.x*v1->z, vn1.x*v1->y - vn1.y*v1->x }; + + *v2 = vn2; +} + +// Transforms a Vector3 by a given Matrix +RMAPI Vector3 Vector3Transform(Vector3 v, Matrix mat) +{ + Vector3 result = { 0 }; + + float x = v.x; + float y = v.y; + float z = v.z; + + result.x = mat.m0*x + mat.m4*y + mat.m8*z + mat.m12; + result.y = mat.m1*x + mat.m5*y + mat.m9*z + mat.m13; + result.z = mat.m2*x + mat.m6*y + mat.m10*z + mat.m14; + + return result; +} + +// Transform a vector by quaternion rotation +RMAPI Vector3 Vector3RotateByQuaternion(Vector3 v, Quaternion q) +{ + Vector3 result = { 0 }; + + result.x = v.x*(q.x*q.x + q.w*q.w - q.y*q.y - q.z*q.z) + v.y*(2*q.x*q.y - 2*q.w*q.z) + v.z*(2*q.x*q.z + 2*q.w*q.y); + result.y = v.x*(2*q.w*q.z + 2*q.x*q.y) + v.y*(q.w*q.w - q.x*q.x + q.y*q.y - q.z*q.z) + v.z*(-2*q.w*q.x + 2*q.y*q.z); + result.z = v.x*(-2*q.w*q.y + 2*q.x*q.z) + v.y*(2*q.w*q.x + 2*q.y*q.z)+ v.z*(q.w*q.w - q.x*q.x - q.y*q.y + q.z*q.z); + + return result; +} + +// Calculate linear interpolation between two vectors +RMAPI Vector3 Vector3Lerp(Vector3 v1, Vector3 v2, float amount) +{ + Vector3 result = { 0 }; + + result.x = v1.x + amount*(v2.x - v1.x); + result.y = v1.y + amount*(v2.y - v1.y); + result.z = v1.z + amount*(v2.z - v1.z); + + return result; +} + +// Calculate reflected vector to normal +RMAPI Vector3 Vector3Reflect(Vector3 v, Vector3 normal) +{ + Vector3 result = { 0 }; + + // I is the original vector + // N is the normal of the incident plane + // R = I - (2*N*(DotProduct[I, N])) + + float dotProduct = (v.x*normal.x + v.y*normal.y + v.z*normal.z); + + result.x = v.x - (2.0f*normal.x)*dotProduct; + result.y = v.y - (2.0f*normal.y)*dotProduct; + result.z = v.z - (2.0f*normal.z)*dotProduct; + + return result; +} + +// Get min value for each pair of components +RMAPI Vector3 Vector3Min(Vector3 v1, Vector3 v2) +{ + Vector3 result = { 0 }; + + result.x = fminf(v1.x, v2.x); + result.y = fminf(v1.y, v2.y); + result.z = fminf(v1.z, v2.z); + + return result; +} + +// Get max value for each pair of components +RMAPI Vector3 Vector3Max(Vector3 v1, Vector3 v2) +{ + Vector3 result = { 0 }; + + result.x = fmaxf(v1.x, v2.x); + result.y = fmaxf(v1.y, v2.y); + result.z = fmaxf(v1.z, v2.z); + + return result; +} + +// Compute barycenter coordinates (u, v, w) for point p with respect to triangle (a, b, c) +// NOTE: Assumes P is on the plane of the triangle +RMAPI Vector3 Vector3Barycenter(Vector3 p, Vector3 a, Vector3 b, Vector3 c) +{ + Vector3 result = { 0 }; + + Vector3 v0 = { b.x - a.x, b.y - a.y, b.z - a.z }; // Vector3Subtract(b, a) + Vector3 v1 = { c.x - a.x, c.y - a.y, c.z - a.z }; // Vector3Subtract(c, a) + Vector3 v2 = { p.x - a.x, p.y - a.y, p.z - a.z }; // Vector3Subtract(p, a) + float d00 = (v0.x*v0.x + v0.y*v0.y + v0.z*v0.z); // Vector3DotProduct(v0, v0) + float d01 = (v0.x*v1.x + v0.y*v1.y + v0.z*v1.z); // Vector3DotProduct(v0, v1) + float d11 = (v1.x*v1.x + v1.y*v1.y + v1.z*v1.z); // Vector3DotProduct(v1, v1) + float d20 = (v2.x*v0.x + v2.y*v0.y + v2.z*v0.z); // Vector3DotProduct(v2, v0) + float d21 = (v2.x*v1.x + v2.y*v1.y + v2.z*v1.z); // Vector3DotProduct(v2, v1) + + float denom = d00*d11 - d01*d01; + + result.y = (d11*d20 - d01*d21)/denom; + result.z = (d00*d21 - d01*d20)/denom; + result.x = 1.0f - (result.z + result.y); + + return result; +} + +// Projects a Vector3 from screen space into object space +// NOTE: We are avoiding calling other raymath functions despite available +RMAPI Vector3 Vector3Unproject(Vector3 source, Matrix projection, Matrix view) +{ + Vector3 result = { 0 }; + + // Calculate unproject matrix (multiply view patrix by projection matrix) and invert it + Matrix matViewProj = { // MatrixMultiply(view, projection); + view.m0*projection.m0 + view.m1*projection.m4 + view.m2*projection.m8 + view.m3*projection.m12, + view.m0*projection.m1 + view.m1*projection.m5 + view.m2*projection.m9 + view.m3*projection.m13, + view.m0*projection.m2 + view.m1*projection.m6 + view.m2*projection.m10 + view.m3*projection.m14, + view.m0*projection.m3 + view.m1*projection.m7 + view.m2*projection.m11 + view.m3*projection.m15, + view.m4*projection.m0 + view.m5*projection.m4 + view.m6*projection.m8 + view.m7*projection.m12, + view.m4*projection.m1 + view.m5*projection.m5 + view.m6*projection.m9 + view.m7*projection.m13, + view.m4*projection.m2 + view.m5*projection.m6 + view.m6*projection.m10 + view.m7*projection.m14, + view.m4*projection.m3 + view.m5*projection.m7 + view.m6*projection.m11 + view.m7*projection.m15, + view.m8*projection.m0 + view.m9*projection.m4 + view.m10*projection.m8 + view.m11*projection.m12, + view.m8*projection.m1 + view.m9*projection.m5 + view.m10*projection.m9 + view.m11*projection.m13, + view.m8*projection.m2 + view.m9*projection.m6 + view.m10*projection.m10 + view.m11*projection.m14, + view.m8*projection.m3 + view.m9*projection.m7 + view.m10*projection.m11 + view.m11*projection.m15, + view.m12*projection.m0 + view.m13*projection.m4 + view.m14*projection.m8 + view.m15*projection.m12, + view.m12*projection.m1 + view.m13*projection.m5 + view.m14*projection.m9 + view.m15*projection.m13, + view.m12*projection.m2 + view.m13*projection.m6 + view.m14*projection.m10 + view.m15*projection.m14, + view.m12*projection.m3 + view.m13*projection.m7 + view.m14*projection.m11 + view.m15*projection.m15 }; + + // Calculate inverted matrix -> MatrixInvert(matViewProj); + // Cache the matrix values (speed optimization) + float a00 = matViewProj.m0, a01 = matViewProj.m1, a02 = matViewProj.m2, a03 = matViewProj.m3; + float a10 = matViewProj.m4, a11 = matViewProj.m5, a12 = matViewProj.m6, a13 = matViewProj.m7; + float a20 = matViewProj.m8, a21 = matViewProj.m9, a22 = matViewProj.m10, a23 = matViewProj.m11; + float a30 = matViewProj.m12, a31 = matViewProj.m13, a32 = matViewProj.m14, a33 = matViewProj.m15; + + float b00 = a00*a11 - a01*a10; + float b01 = a00*a12 - a02*a10; + float b02 = a00*a13 - a03*a10; + float b03 = a01*a12 - a02*a11; + float b04 = a01*a13 - a03*a11; + float b05 = a02*a13 - a03*a12; + float b06 = a20*a31 - a21*a30; + float b07 = a20*a32 - a22*a30; + float b08 = a20*a33 - a23*a30; + float b09 = a21*a32 - a22*a31; + float b10 = a21*a33 - a23*a31; + float b11 = a22*a33 - a23*a32; + + // Calculate the invert determinant (inlined to avoid double-caching) + float invDet = 1.0f/(b00*b11 - b01*b10 + b02*b09 + b03*b08 - b04*b07 + b05*b06); + + Matrix matViewProjInv = { + (a11*b11 - a12*b10 + a13*b09)*invDet, + (-a01*b11 + a02*b10 - a03*b09)*invDet, + (a31*b05 - a32*b04 + a33*b03)*invDet, + (-a21*b05 + a22*b04 - a23*b03)*invDet, + (-a10*b11 + a12*b08 - a13*b07)*invDet, + (a00*b11 - a02*b08 + a03*b07)*invDet, + (-a30*b05 + a32*b02 - a33*b01)*invDet, + (a20*b05 - a22*b02 + a23*b01)*invDet, + (a10*b10 - a11*b08 + a13*b06)*invDet, + (-a00*b10 + a01*b08 - a03*b06)*invDet, + (a30*b04 - a31*b02 + a33*b00)*invDet, + (-a20*b04 + a21*b02 - a23*b00)*invDet, + (-a10*b09 + a11*b07 - a12*b06)*invDet, + (a00*b09 - a01*b07 + a02*b06)*invDet, + (-a30*b03 + a31*b01 - a32*b00)*invDet, + (a20*b03 - a21*b01 + a22*b00)*invDet }; + + // Create quaternion from source point + Quaternion quat = { source.x, source.y, source.z, 1.0f }; + + // Multiply quat point by unproject matrix + Quaternion qtransformed = { // QuaternionTransform(quat, matViewProjInv) + matViewProjInv.m0*quat.x + matViewProjInv.m4*quat.y + matViewProjInv.m8*quat.z + matViewProjInv.m12*quat.w, + matViewProjInv.m1*quat.x + matViewProjInv.m5*quat.y + matViewProjInv.m9*quat.z + matViewProjInv.m13*quat.w, + matViewProjInv.m2*quat.x + matViewProjInv.m6*quat.y + matViewProjInv.m10*quat.z + matViewProjInv.m14*quat.w, + matViewProjInv.m3*quat.x + matViewProjInv.m7*quat.y + matViewProjInv.m11*quat.z + matViewProjInv.m15*quat.w }; + + // Normalized world points in vectors + result.x = qtransformed.x/qtransformed.w; + result.y = qtransformed.y/qtransformed.w; + result.z = qtransformed.z/qtransformed.w; + + return result; +} + +// Get Vector3 as float array +RMAPI float3 Vector3ToFloatV(Vector3 v) +{ + float3 buffer = { 0 }; + + buffer.v[0] = v.x; + buffer.v[1] = v.y; + buffer.v[2] = v.z; + + return buffer; +} + +//---------------------------------------------------------------------------------- +// Module Functions Definition - Matrix math +//---------------------------------------------------------------------------------- + +// Compute matrix determinant +RMAPI float MatrixDeterminant(Matrix mat) +{ + float result = 0.0f; + + // Cache the matrix values (speed optimization) + float a00 = mat.m0, a01 = mat.m1, a02 = mat.m2, a03 = mat.m3; + float a10 = mat.m4, a11 = mat.m5, a12 = mat.m6, a13 = mat.m7; + float a20 = mat.m8, a21 = mat.m9, a22 = mat.m10, a23 = mat.m11; + float a30 = mat.m12, a31 = mat.m13, a32 = mat.m14, a33 = mat.m15; + + result = a30*a21*a12*a03 - a20*a31*a12*a03 - a30*a11*a22*a03 + a10*a31*a22*a03 + + a20*a11*a32*a03 - a10*a21*a32*a03 - a30*a21*a02*a13 + a20*a31*a02*a13 + + a30*a01*a22*a13 - a00*a31*a22*a13 - a20*a01*a32*a13 + a00*a21*a32*a13 + + a30*a11*a02*a23 - a10*a31*a02*a23 - a30*a01*a12*a23 + a00*a31*a12*a23 + + a10*a01*a32*a23 - a00*a11*a32*a23 - a20*a11*a02*a33 + a10*a21*a02*a33 + + a20*a01*a12*a33 - a00*a21*a12*a33 - a10*a01*a22*a33 + a00*a11*a22*a33; + + return result; +} + +// Get the trace of the matrix (sum of the values along the diagonal) +RMAPI float MatrixTrace(Matrix mat) +{ + float result = (mat.m0 + mat.m5 + mat.m10 + mat.m15); + + return result; +} + +// Transposes provided matrix +RMAPI Matrix MatrixTranspose(Matrix mat) +{ + Matrix result = { 0 }; + + result.m0 = mat.m0; + result.m1 = mat.m4; + result.m2 = mat.m8; + result.m3 = mat.m12; + result.m4 = mat.m1; + result.m5 = mat.m5; + result.m6 = mat.m9; + result.m7 = mat.m13; + result.m8 = mat.m2; + result.m9 = mat.m6; + result.m10 = mat.m10; + result.m11 = mat.m14; + result.m12 = mat.m3; + result.m13 = mat.m7; + result.m14 = mat.m11; + result.m15 = mat.m15; + + return result; +} + +// Invert provided matrix +RMAPI Matrix MatrixInvert(Matrix mat) +{ + Matrix result = { 0 }; + + // Cache the matrix values (speed optimization) + float a00 = mat.m0, a01 = mat.m1, a02 = mat.m2, a03 = mat.m3; + float a10 = mat.m4, a11 = mat.m5, a12 = mat.m6, a13 = mat.m7; + float a20 = mat.m8, a21 = mat.m9, a22 = mat.m10, a23 = mat.m11; + float a30 = mat.m12, a31 = mat.m13, a32 = mat.m14, a33 = mat.m15; + + float b00 = a00*a11 - a01*a10; + float b01 = a00*a12 - a02*a10; + float b02 = a00*a13 - a03*a10; + float b03 = a01*a12 - a02*a11; + float b04 = a01*a13 - a03*a11; + float b05 = a02*a13 - a03*a12; + float b06 = a20*a31 - a21*a30; + float b07 = a20*a32 - a22*a30; + float b08 = a20*a33 - a23*a30; + float b09 = a21*a32 - a22*a31; + float b10 = a21*a33 - a23*a31; + float b11 = a22*a33 - a23*a32; + + // Calculate the invert determinant (inlined to avoid double-caching) + float invDet = 1.0f/(b00*b11 - b01*b10 + b02*b09 + b03*b08 - b04*b07 + b05*b06); + + result.m0 = (a11*b11 - a12*b10 + a13*b09)*invDet; + result.m1 = (-a01*b11 + a02*b10 - a03*b09)*invDet; + result.m2 = (a31*b05 - a32*b04 + a33*b03)*invDet; + result.m3 = (-a21*b05 + a22*b04 - a23*b03)*invDet; + result.m4 = (-a10*b11 + a12*b08 - a13*b07)*invDet; + result.m5 = (a00*b11 - a02*b08 + a03*b07)*invDet; + result.m6 = (-a30*b05 + a32*b02 - a33*b01)*invDet; + result.m7 = (a20*b05 - a22*b02 + a23*b01)*invDet; + result.m8 = (a10*b10 - a11*b08 + a13*b06)*invDet; + result.m9 = (-a00*b10 + a01*b08 - a03*b06)*invDet; + result.m10 = (a30*b04 - a31*b02 + a33*b00)*invDet; + result.m11 = (-a20*b04 + a21*b02 - a23*b00)*invDet; + result.m12 = (-a10*b09 + a11*b07 - a12*b06)*invDet; + result.m13 = (a00*b09 - a01*b07 + a02*b06)*invDet; + result.m14 = (-a30*b03 + a31*b01 - a32*b00)*invDet; + result.m15 = (a20*b03 - a21*b01 + a22*b00)*invDet; + + return result; +} + +// Normalize provided matrix +RMAPI Matrix MatrixNormalize(Matrix mat) +{ + Matrix result = { 0 }; + + // Cache the matrix values (speed optimization) + float a00 = mat.m0, a01 = mat.m1, a02 = mat.m2, a03 = mat.m3; + float a10 = mat.m4, a11 = mat.m5, a12 = mat.m6, a13 = mat.m7; + float a20 = mat.m8, a21 = mat.m9, a22 = mat.m10, a23 = mat.m11; + float a30 = mat.m12, a31 = mat.m13, a32 = mat.m14, a33 = mat.m15; + + // MatrixDeterminant(mat) + float det = a30*a21*a12*a03 - a20*a31*a12*a03 - a30*a11*a22*a03 + a10*a31*a22*a03 + + a20*a11*a32*a03 - a10*a21*a32*a03 - a30*a21*a02*a13 + a20*a31*a02*a13 + + a30*a01*a22*a13 - a00*a31*a22*a13 - a20*a01*a32*a13 + a00*a21*a32*a13 + + a30*a11*a02*a23 - a10*a31*a02*a23 - a30*a01*a12*a23 + a00*a31*a12*a23 + + a10*a01*a32*a23 - a00*a11*a32*a23 - a20*a11*a02*a33 + a10*a21*a02*a33 + + a20*a01*a12*a33 - a00*a21*a12*a33 - a10*a01*a22*a33 + a00*a11*a22*a33; + + result.m0 = mat.m0/det; + result.m1 = mat.m1/det; + result.m2 = mat.m2/det; + result.m3 = mat.m3/det; + result.m4 = mat.m4/det; + result.m5 = mat.m5/det; + result.m6 = mat.m6/det; + result.m7 = mat.m7/det; + result.m8 = mat.m8/det; + result.m9 = mat.m9/det; + result.m10 = mat.m10/det; + result.m11 = mat.m11/det; + result.m12 = mat.m12/det; + result.m13 = mat.m13/det; + result.m14 = mat.m14/det; + result.m15 = mat.m15/det; + + return result; +} + +// Get identity matrix +RMAPI Matrix MatrixIdentity(void) +{ + Matrix result = { 1.0f, 0.0f, 0.0f, 0.0f, + 0.0f, 1.0f, 0.0f, 0.0f, + 0.0f, 0.0f, 1.0f, 0.0f, + 0.0f, 0.0f, 0.0f, 1.0f }; + + return result; +} + +// Add two matrices +RMAPI Matrix MatrixAdd(Matrix left, Matrix right) +{ + Matrix result = { 0 }; + + result.m0 = left.m0 + right.m0; + result.m1 = left.m1 + right.m1; + result.m2 = left.m2 + right.m2; + result.m3 = left.m3 + right.m3; + result.m4 = left.m4 + right.m4; + result.m5 = left.m5 + right.m5; + result.m6 = left.m6 + right.m6; + result.m7 = left.m7 + right.m7; + result.m8 = left.m8 + right.m8; + result.m9 = left.m9 + right.m9; + result.m10 = left.m10 + right.m10; + result.m11 = left.m11 + right.m11; + result.m12 = left.m12 + right.m12; + result.m13 = left.m13 + right.m13; + result.m14 = left.m14 + right.m14; + result.m15 = left.m15 + right.m15; + + return result; +} + +// Subtract two matrices (left - right) +RMAPI Matrix MatrixSubtract(Matrix left, Matrix right) +{ + Matrix result = { 0 }; + + result.m0 = left.m0 - right.m0; + result.m1 = left.m1 - right.m1; + result.m2 = left.m2 - right.m2; + result.m3 = left.m3 - right.m3; + result.m4 = left.m4 - right.m4; + result.m5 = left.m5 - right.m5; + result.m6 = left.m6 - right.m6; + result.m7 = left.m7 - right.m7; + result.m8 = left.m8 - right.m8; + result.m9 = left.m9 - right.m9; + result.m10 = left.m10 - right.m10; + result.m11 = left.m11 - right.m11; + result.m12 = left.m12 - right.m12; + result.m13 = left.m13 - right.m13; + result.m14 = left.m14 - right.m14; + result.m15 = left.m15 - right.m15; + + return result; +} + +// Get two matrix multiplication +// NOTE: When multiplying matrices... the order matters! +RMAPI Matrix MatrixMultiply(Matrix left, Matrix right) +{ + Matrix result = { 0 }; + + result.m0 = left.m0*right.m0 + left.m1*right.m4 + left.m2*right.m8 + left.m3*right.m12; + result.m1 = left.m0*right.m1 + left.m1*right.m5 + left.m2*right.m9 + left.m3*right.m13; + result.m2 = left.m0*right.m2 + left.m1*right.m6 + left.m2*right.m10 + left.m3*right.m14; + result.m3 = left.m0*right.m3 + left.m1*right.m7 + left.m2*right.m11 + left.m3*right.m15; + result.m4 = left.m4*right.m0 + left.m5*right.m4 + left.m6*right.m8 + left.m7*right.m12; + result.m5 = left.m4*right.m1 + left.m5*right.m5 + left.m6*right.m9 + left.m7*right.m13; + result.m6 = left.m4*right.m2 + left.m5*right.m6 + left.m6*right.m10 + left.m7*right.m14; + result.m7 = left.m4*right.m3 + left.m5*right.m7 + left.m6*right.m11 + left.m7*right.m15; + result.m8 = left.m8*right.m0 + left.m9*right.m4 + left.m10*right.m8 + left.m11*right.m12; + result.m9 = left.m8*right.m1 + left.m9*right.m5 + left.m10*right.m9 + left.m11*right.m13; + result.m10 = left.m8*right.m2 + left.m9*right.m6 + left.m10*right.m10 + left.m11*right.m14; + result.m11 = left.m8*right.m3 + left.m9*right.m7 + left.m10*right.m11 + left.m11*right.m15; + result.m12 = left.m12*right.m0 + left.m13*right.m4 + left.m14*right.m8 + left.m15*right.m12; + result.m13 = left.m12*right.m1 + left.m13*right.m5 + left.m14*right.m9 + left.m15*right.m13; + result.m14 = left.m12*right.m2 + left.m13*right.m6 + left.m14*right.m10 + left.m15*right.m14; + result.m15 = left.m12*right.m3 + left.m13*right.m7 + left.m14*right.m11 + left.m15*right.m15; + + return result; +} + +// Get translation matrix +RMAPI Matrix MatrixTranslate(float x, float y, float z) +{ + Matrix result = { 1.0f, 0.0f, 0.0f, x, + 0.0f, 1.0f, 0.0f, y, + 0.0f, 0.0f, 1.0f, z, + 0.0f, 0.0f, 0.0f, 1.0f }; + + return result; +} + +// Create rotation matrix from axis and angle +// NOTE: Angle should be provided in radians +RMAPI Matrix MatrixRotate(Vector3 axis, float angle) +{ + Matrix result = { 0 }; + + float x = axis.x, y = axis.y, z = axis.z; + + float lengthSquared = x*x + y*y + z*z; + + if ((lengthSquared != 1.0f) && (lengthSquared != 0.0f)) + { + float ilength = 1.0f/sqrtf(lengthSquared); + x *= ilength; + y *= ilength; + z *= ilength; + } + + float sinres = sinf(angle); + float cosres = cosf(angle); + float t = 1.0f - cosres; + + result.m0 = x*x*t + cosres; + result.m1 = y*x*t + z*sinres; + result.m2 = z*x*t - y*sinres; + result.m3 = 0.0f; + + result.m4 = x*y*t - z*sinres; + result.m5 = y*y*t + cosres; + result.m6 = z*y*t + x*sinres; + result.m7 = 0.0f; + + result.m8 = x*z*t + y*sinres; + result.m9 = y*z*t - x*sinres; + result.m10 = z*z*t + cosres; + result.m11 = 0.0f; + + result.m12 = 0.0f; + result.m13 = 0.0f; + result.m14 = 0.0f; + result.m15 = 1.0f; + + return result; +} + +// Get x-rotation matrix (angle in radians) +RMAPI Matrix MatrixRotateX(float angle) +{ + Matrix result = { 1.0f, 0.0f, 0.0f, 0.0f, + 0.0f, 1.0f, 0.0f, 0.0f, + 0.0f, 0.0f, 1.0f, 0.0f, + 0.0f, 0.0f, 0.0f, 1.0f }; // MatrixIdentity() + + float cosres = cosf(angle); + float sinres = sinf(angle); + + result.m5 = cosres; + result.m6 = -sinres; + result.m9 = sinres; + result.m10 = cosres; + + return result; +} + +// Get y-rotation matrix (angle in radians) +RMAPI Matrix MatrixRotateY(float angle) +{ + Matrix result = { 1.0f, 0.0f, 0.0f, 0.0f, + 0.0f, 1.0f, 0.0f, 0.0f, + 0.0f, 0.0f, 1.0f, 0.0f, + 0.0f, 0.0f, 0.0f, 1.0f }; // MatrixIdentity() + + float cosres = cosf(angle); + float sinres = sinf(angle); + + result.m0 = cosres; + result.m2 = sinres; + result.m8 = -sinres; + result.m10 = cosres; + + return result; +} + +// Get z-rotation matrix (angle in radians) +RMAPI Matrix MatrixRotateZ(float angle) +{ + Matrix result = { 1.0f, 0.0f, 0.0f, 0.0f, + 0.0f, 1.0f, 0.0f, 0.0f, + 0.0f, 0.0f, 1.0f, 0.0f, + 0.0f, 0.0f, 0.0f, 1.0f }; // MatrixIdentity() + + float cosres = cosf(angle); + float sinres = sinf(angle); + + result.m0 = cosres; + result.m1 = -sinres; + result.m4 = sinres; + result.m5 = cosres; + + return result; +} + + +// Get xyz-rotation matrix (angles in radians) +RMAPI Matrix MatrixRotateXYZ(Vector3 ang) +{ + Matrix result = { 1.0f, 0.0f, 0.0f, 0.0f, + 0.0f, 1.0f, 0.0f, 0.0f, + 0.0f, 0.0f, 1.0f, 0.0f, + 0.0f, 0.0f, 0.0f, 1.0f }; // MatrixIdentity() + + float cosz = cosf(-ang.z); + float sinz = sinf(-ang.z); + float cosy = cosf(-ang.y); + float siny = sinf(-ang.y); + float cosx = cosf(-ang.x); + float sinx = sinf(-ang.x); + + result.m0 = cosz*cosy; + result.m4 = (cosz*siny*sinx) - (sinz*cosx); + result.m8 = (cosz*siny*cosx) + (sinz*sinx); + + result.m1 = sinz*cosy; + result.m5 = (sinz*siny*sinx) + (cosz*cosx); + result.m9 = (sinz*siny*cosx) - (cosz*sinx); + + result.m2 = -siny; + result.m6 = cosy*sinx; + result.m10= cosy*cosx; + + return result; +} + +// Get zyx-rotation matrix (angles in radians) +RMAPI Matrix MatrixRotateZYX(Vector3 ang) +{ + Matrix result = { 0 }; + + float cz = cosf(ang.z); + float sz = sinf(ang.z); + float cy = cosf(ang.y); + float sy = sinf(ang.y); + float cx = cosf(ang.x); + float sx = sinf(ang.x); + + result.m0 = cz*cy; + result.m1 = cz*sy*sx - cx*sz; + result.m2 = sz*sx + cz*cx*sy; + result.m3 = 0; + + result.m4 = cy*sz; + result.m5 = cz*cx + sz*sy*sx; + result.m6 = cx*sz*sy - cz*sx; + result.m7 = 0; + + result.m8 = -sy; + result.m9 = cy*sx; + result.m10 = cy*cx; + result.m11 = 0; + + result.m12 = 0; + result.m13 = 0; + result.m14 = 0; + result.m15 = 1; + + return result; +} + +// Get scaling matrix +RMAPI Matrix MatrixScale(float x, float y, float z) +{ + Matrix result = { x, 0.0f, 0.0f, 0.0f, + 0.0f, y, 0.0f, 0.0f, + 0.0f, 0.0f, z, 0.0f, + 0.0f, 0.0f, 0.0f, 1.0f }; + + return result; +} + +// Get perspective projection matrix +RMAPI Matrix MatrixFrustum(double left, double right, double bottom, double top, double near, double far) +{ + Matrix result = { 0 }; + + float rl = (float)(right - left); + float tb = (float)(top - bottom); + float fn = (float)(far - near); + + result.m0 = ((float)near*2.0f)/rl; + result.m1 = 0.0f; + result.m2 = 0.0f; + result.m3 = 0.0f; + + result.m4 = 0.0f; + result.m5 = ((float)near*2.0f)/tb; + result.m6 = 0.0f; + result.m7 = 0.0f; + + result.m8 = ((float)right + (float)left)/rl; + result.m9 = ((float)top + (float)bottom)/tb; + result.m10 = -((float)far + (float)near)/fn; + result.m11 = -1.0f; + + result.m12 = 0.0f; + result.m13 = 0.0f; + result.m14 = -((float)far*(float)near*2.0f)/fn; + result.m15 = 0.0f; + + return result; +} + +// Get perspective projection matrix +// NOTE: Angle should be provided in radians +RMAPI Matrix MatrixPerspective(double fovy, double aspect, double near, double far) +{ + Matrix result = { 0 }; + + double top = near*tan(fovy*0.5); + double bottom = -top; + double right = top*aspect; + double left = -right; + + // MatrixFrustum(-right, right, -top, top, near, far); + float rl = (float)(right - left); + float tb = (float)(top - bottom); + float fn = (float)(far - near); + + result.m0 = ((float)near*2.0f)/rl; + result.m5 = ((float)near*2.0f)/tb; + result.m8 = ((float)right + (float)left)/rl; + result.m9 = ((float)top + (float)bottom)/tb; + result.m10 = -((float)far + (float)near)/fn; + result.m11 = -1.0f; + result.m14 = -((float)far*(float)near*2.0f)/fn; + + return result; +} + +// Get orthographic projection matrix +RMAPI Matrix MatrixOrtho(double left, double right, double bottom, double top, double near, double far) +{ + Matrix result = { 0 }; + + float rl = (float)(right - left); + float tb = (float)(top - bottom); + float fn = (float)(far - near); + + result.m0 = 2.0f/rl; + result.m1 = 0.0f; + result.m2 = 0.0f; + result.m3 = 0.0f; + result.m4 = 0.0f; + result.m5 = 2.0f/tb; + result.m6 = 0.0f; + result.m7 = 0.0f; + result.m8 = 0.0f; + result.m9 = 0.0f; + result.m10 = -2.0f/fn; + result.m11 = 0.0f; + result.m12 = -((float)left + (float)right)/rl; + result.m13 = -((float)top + (float)bottom)/tb; + result.m14 = -((float)far + (float)near)/fn; + result.m15 = 1.0f; + + return result; +} + +// Get camera look-at matrix (view matrix) +RMAPI Matrix MatrixLookAt(Vector3 eye, Vector3 target, Vector3 up) +{ + Matrix result = { 0 }; + + float length = 0.0f; + float ilength = 0.0f; + + // Vector3Subtract(eye, target) + Vector3 vz = { eye.x - target.x, eye.y - target.y, eye.z - target.z }; + + // Vector3Normalize(vz) + Vector3 v = vz; + length = sqrtf(v.x*v.x + v.y*v.y + v.z*v.z); + if (length == 0.0f) length = 1.0f; + ilength = 1.0f/length; + vz.x *= ilength; + vz.y *= ilength; + vz.z *= ilength; + + // Vector3CrossProduct(up, vz) + Vector3 vx = { up.y*vz.z - up.z*vz.y, up.z*vz.x - up.x*vz.z, up.x*vz.y - up.y*vz.x }; + + // Vector3Normalize(x) + v = vx; + length = sqrtf(v.x*v.x + v.y*v.y + v.z*v.z); + if (length == 0.0f) length = 1.0f; + ilength = 1.0f/length; + vx.x *= ilength; + vx.y *= ilength; + vx.z *= ilength; + + // Vector3CrossProduct(vz, vx) + Vector3 vy = { vz.y*vx.z - vz.z*vx.y, vz.z*vx.x - vz.x*vx.z, vz.x*vx.y - vz.y*vx.x }; + + result.m0 = vx.x; + result.m1 = vy.x; + result.m2 = vz.x; + result.m3 = 0.0f; + result.m4 = vx.y; + result.m5 = vy.y; + result.m6 = vz.y; + result.m7 = 0.0f; + result.m8 = vx.z; + result.m9 = vy.z; + result.m10 = vz.z; + result.m11 = 0.0f; + result.m12 = -(vx.x*eye.x + vx.y*eye.y + vx.z*eye.z); // Vector3DotProduct(vx, eye) + result.m13 = -(vy.x*eye.x + vy.y*eye.y + vy.z*eye.z); // Vector3DotProduct(vy, eye) + result.m14 = -(vz.x*eye.x + vz.y*eye.y + vz.z*eye.z); // Vector3DotProduct(vz, eye) + result.m15 = 1.0f; + + return result; +} + +// Get float array of matrix data +RMAPI float16 MatrixToFloatV(Matrix mat) +{ + float16 result = { 0 }; + + result.v[0] = mat.m0; + result.v[1] = mat.m1; + result.v[2] = mat.m2; + result.v[3] = mat.m3; + result.v[4] = mat.m4; + result.v[5] = mat.m5; + result.v[6] = mat.m6; + result.v[7] = mat.m7; + result.v[8] = mat.m8; + result.v[9] = mat.m9; + result.v[10] = mat.m10; + result.v[11] = mat.m11; + result.v[12] = mat.m12; + result.v[13] = mat.m13; + result.v[14] = mat.m14; + result.v[15] = mat.m15; + + return result; +} + +//---------------------------------------------------------------------------------- +// Module Functions Definition - Quaternion math +//---------------------------------------------------------------------------------- + +// Add two quaternions +RMAPI Quaternion QuaternionAdd(Quaternion q1, Quaternion q2) +{ + Quaternion result = {q1.x + q2.x, q1.y + q2.y, q1.z + q2.z, q1.w + q2.w}; + + return result; +} + +// Add quaternion and float value +RMAPI Quaternion QuaternionAddValue(Quaternion q, float add) +{ + Quaternion result = {q.x + add, q.y + add, q.z + add, q.w + add}; + + return result; +} + +// Subtract two quaternions +RMAPI Quaternion QuaternionSubtract(Quaternion q1, Quaternion q2) +{ + Quaternion result = {q1.x - q2.x, q1.y - q2.y, q1.z - q2.z, q1.w - q2.w}; + + return result; +} + +// Subtract quaternion and float value +RMAPI Quaternion QuaternionSubtractValue(Quaternion q, float sub) +{ + Quaternion result = {q.x - sub, q.y - sub, q.z - sub, q.w - sub}; + + return result; +} + +// Get identity quaternion +RMAPI Quaternion QuaternionIdentity(void) +{ + Quaternion result = { 0.0f, 0.0f, 0.0f, 1.0f }; + + return result; +} + +// Computes the length of a quaternion +RMAPI float QuaternionLength(Quaternion q) +{ + float result = sqrtf(q.x*q.x + q.y*q.y + q.z*q.z + q.w*q.w); + + return result; +} + +// Normalize provided quaternion +RMAPI Quaternion QuaternionNormalize(Quaternion q) +{ + Quaternion result = { 0 }; + + float length = sqrtf(q.x*q.x + q.y*q.y + q.z*q.z + q.w*q.w); + if (length == 0.0f) length = 1.0f; + float ilength = 1.0f/length; + + result.x = q.x*ilength; + result.y = q.y*ilength; + result.z = q.z*ilength; + result.w = q.w*ilength; + + return result; +} + +// Invert provided quaternion +RMAPI Quaternion QuaternionInvert(Quaternion q) +{ + Quaternion result = q; + + float length = sqrtf(q.x*q.x + q.y*q.y + q.z*q.z + q.w*q.w); + float lengthSq = length*length; + + if (lengthSq != 0.0) + { + float invLength = 1.0f/lengthSq; + + result.x *= -invLength; + result.y *= -invLength; + result.z *= -invLength; + result.w *= invLength; + } + + return result; +} + +// Calculate two quaternion multiplication +RMAPI Quaternion QuaternionMultiply(Quaternion q1, Quaternion q2) +{ + Quaternion result = { 0 }; + + float qax = q1.x, qay = q1.y, qaz = q1.z, qaw = q1.w; + float qbx = q2.x, qby = q2.y, qbz = q2.z, qbw = q2.w; + + result.x = qax*qbw + qaw*qbx + qay*qbz - qaz*qby; + result.y = qay*qbw + qaw*qby + qaz*qbx - qax*qbz; + result.z = qaz*qbw + qaw*qbz + qax*qby - qay*qbx; + result.w = qaw*qbw - qax*qbx - qay*qby - qaz*qbz; + + return result; +} + +// Scale quaternion by float value +RMAPI Quaternion QuaternionScale(Quaternion q, float mul) +{ + Quaternion result = { 0 }; + + float qax = q.x, qay = q.y, qaz = q.z, qaw = q.w; + + result.x = qax*mul + qaw*mul + qay*mul - qaz*mul; + result.y = qay*mul + qaw*mul + qaz*mul - qax*mul; + result.z = qaz*mul + qaw*mul + qax*mul - qay*mul; + result.w = qaw*mul - qax*mul - qay*mul - qaz*mul; + + return result; +} + +// Divide two quaternions +RMAPI Quaternion QuaternionDivide(Quaternion q1, Quaternion q2) +{ + Quaternion result = { q1.x/q2.x, q1.y/q2.y, q1.z/q2.z, q1.w/q2.w }; + + return result; +} + +// Calculate linear interpolation between two quaternions +RMAPI Quaternion QuaternionLerp(Quaternion q1, Quaternion q2, float amount) +{ + Quaternion result = { 0 }; + + result.x = q1.x + amount*(q2.x - q1.x); + result.y = q1.y + amount*(q2.y - q1.y); + result.z = q1.z + amount*(q2.z - q1.z); + result.w = q1.w + amount*(q2.w - q1.w); + + return result; +} + +// Calculate slerp-optimized interpolation between two quaternions +RMAPI Quaternion QuaternionNlerp(Quaternion q1, Quaternion q2, float amount) +{ + Quaternion result = { 0 }; + + // QuaternionLerp(q1, q2, amount) + result.x = q1.x + amount*(q2.x - q1.x); + result.y = q1.y + amount*(q2.y - q1.y); + result.z = q1.z + amount*(q2.z - q1.z); + result.w = q1.w + amount*(q2.w - q1.w); + + // QuaternionNormalize(q); + Quaternion q = result; + float length = sqrtf(q.x*q.x + q.y*q.y + q.z*q.z + q.w*q.w); + if (length == 0.0f) length = 1.0f; + float ilength = 1.0f/length; + + result.x = q.x*ilength; + result.y = q.y*ilength; + result.z = q.z*ilength; + result.w = q.w*ilength; + + return result; +} + +// Calculates spherical linear interpolation between two quaternions +RMAPI Quaternion QuaternionSlerp(Quaternion q1, Quaternion q2, float amount) +{ + Quaternion result = { 0 }; + + float cosHalfTheta = q1.x*q2.x + q1.y*q2.y + q1.z*q2.z + q1.w*q2.w; + + if (cosHalfTheta < 0) + { + q2.x = -q2.x; q2.y = -q2.y; q2.z = -q2.z; q2.w = -q2.w; + cosHalfTheta = -cosHalfTheta; + } + + if (fabs(cosHalfTheta) >= 1.0f) result = q1; + else if (cosHalfTheta > 0.95f) result = QuaternionNlerp(q1, q2, amount); + else + { + float halfTheta = acosf(cosHalfTheta); + float sinHalfTheta = sqrtf(1.0f - cosHalfTheta*cosHalfTheta); + + if (fabs(sinHalfTheta) < 0.001f) + { + result.x = (q1.x*0.5f + q2.x*0.5f); + result.y = (q1.y*0.5f + q2.y*0.5f); + result.z = (q1.z*0.5f + q2.z*0.5f); + result.w = (q1.w*0.5f + q2.w*0.5f); + } + else + { + float ratioA = sinf((1 - amount)*halfTheta)/sinHalfTheta; + float ratioB = sinf(amount*halfTheta)/sinHalfTheta; + + result.x = (q1.x*ratioA + q2.x*ratioB); + result.y = (q1.y*ratioA + q2.y*ratioB); + result.z = (q1.z*ratioA + q2.z*ratioB); + result.w = (q1.w*ratioA + q2.w*ratioB); + } + } + + return result; +} + +// Calculate quaternion based on the rotation from one vector to another +RMAPI Quaternion QuaternionFromVector3ToVector3(Vector3 from, Vector3 to) +{ + Quaternion result = { 0 }; + + float cos2Theta = (from.x*to.x + from.y*to.y + from.z*to.z); // Vector3DotProduct(from, to) + Vector3 cross = { from.y*to.z - from.z*to.y, from.z*to.x - from.x*to.z, from.x*to.y - from.y*to.x }; // Vector3CrossProduct(from, to) + + result.x = cross.x; + result.y = cross.y; + result.z = cross.z; + result.w = 1.0f + cos2Theta; + + // QuaternionNormalize(q); + // NOTE: Normalize to essentially nlerp the original and identity to 0.5 + Quaternion q = result; + float length = sqrtf(q.x*q.x + q.y*q.y + q.z*q.z + q.w*q.w); + if (length == 0.0f) length = 1.0f; + float ilength = 1.0f/length; + + result.x = q.x*ilength; + result.y = q.y*ilength; + result.z = q.z*ilength; + result.w = q.w*ilength; + + return result; +} + +// Get a quaternion for a given rotation matrix +RMAPI Quaternion QuaternionFromMatrix(Matrix mat) +{ + Quaternion result = { 0 }; + + if ((mat.m0 > mat.m5) && (mat.m0 > mat.m10)) + { + float s = sqrtf(1.0f + mat.m0 - mat.m5 - mat.m10)*2; + + result.x = 0.25f*s; + result.y = (mat.m4 + mat.m1)/s; + result.z = (mat.m2 + mat.m8)/s; + result.w = (mat.m9 - mat.m6)/s; + } + else if (mat.m5 > mat.m10) + { + float s = sqrtf(1.0f + mat.m5 - mat.m0 - mat.m10)*2; + result.x = (mat.m4 + mat.m1)/s; + result.y = 0.25f*s; + result.z = (mat.m9 + mat.m6)/s; + result.w = (mat.m2 - mat.m8)/s; + } + else + { + float s = sqrtf(1.0f + mat.m10 - mat.m0 - mat.m5)*2; + result.x = (mat.m2 + mat.m8)/s; + result.y = (mat.m9 + mat.m6)/s; + result.z = 0.25f*s; + result.w = (mat.m4 - mat.m1)/s; + } + + return result; +} + +// Get a matrix for a given quaternion +RMAPI Matrix QuaternionToMatrix(Quaternion q) +{ + Matrix result = { 1.0f, 0.0f, 0.0f, 0.0f, + 0.0f, 1.0f, 0.0f, 0.0f, + 0.0f, 0.0f, 1.0f, 0.0f, + 0.0f, 0.0f, 0.0f, 1.0f }; // MatrixIdentity() + + float a2 = q.x*q.x; + float b2 = q.y*q.y; + float c2 = q.z*q.z; + float ac = q.x*q.z; + float ab = q.x*q.y; + float bc = q.y*q.z; + float ad = q.w*q.x; + float bd = q.w*q.y; + float cd = q.w*q.z; + + result.m0 = 1 - 2*(b2 + c2); + result.m1 = 2*(ab + cd); + result.m2 = 2*(ac - bd); + + result.m4 = 2*(ab - cd); + result.m5 = 1 - 2*(a2 + c2); + result.m6 = 2*(bc + ad); + + result.m8 = 2*(ac + bd); + result.m9 = 2*(bc - ad); + result.m10 = 1 - 2*(a2 + b2); + + return result; +} + +// Get rotation quaternion for an angle and axis +// NOTE: angle must be provided in radians +RMAPI Quaternion QuaternionFromAxisAngle(Vector3 axis, float angle) +{ + Quaternion result = { 0.0f, 0.0f, 0.0f, 1.0f }; + + float axisLength = sqrtf(axis.x*axis.x + axis.y*axis.y + axis.z*axis.z); + + if (axisLength != 0.0f) + { + angle *= 0.5f; + + float length = 0.0f; + float ilength = 0.0f; + + // Vector3Normalize(axis) + Vector3 v = axis; + length = sqrtf(v.x*v.x + v.y*v.y + v.z*v.z); + if (length == 0.0f) length = 1.0f; + ilength = 1.0f/length; + axis.x *= ilength; + axis.y *= ilength; + axis.z *= ilength; + + float sinres = sinf(angle); + float cosres = cosf(angle); + + result.x = axis.x*sinres; + result.y = axis.y*sinres; + result.z = axis.z*sinres; + result.w = cosres; + + // QuaternionNormalize(q); + Quaternion q = result; + length = sqrtf(q.x*q.x + q.y*q.y + q.z*q.z + q.w*q.w); + if (length == 0.0f) length = 1.0f; + ilength = 1.0f/length; + result.x = q.x*ilength; + result.y = q.y*ilength; + result.z = q.z*ilength; + result.w = q.w*ilength; + } + + return result; +} + +// Get the rotation angle and axis for a given quaternion +RMAPI void QuaternionToAxisAngle(Quaternion q, Vector3 *outAxis, float *outAngle) +{ + if (fabs(q.w) > 1.0f) + { + // QuaternionNormalize(q); + float length = sqrtf(q.x*q.x + q.y*q.y + q.z*q.z + q.w*q.w); + if (length == 0.0f) length = 1.0f; + float ilength = 1.0f/length; + + q.x = q.x*ilength; + q.y = q.y*ilength; + q.z = q.z*ilength; + q.w = q.w*ilength; + } + + Vector3 resAxis = { 0.0f, 0.0f, 0.0f }; + float resAngle = 2.0f*acosf(q.w); + float den = sqrtf(1.0f - q.w*q.w); + + if (den > 0.0001f) + { + resAxis.x = q.x/den; + resAxis.y = q.y/den; + resAxis.z = q.z/den; + } + else + { + // This occurs when the angle is zero. + // Not a problem: just set an arbitrary normalized axis. + resAxis.x = 1.0f; + } + + *outAxis = resAxis; + *outAngle = resAngle; +} + +// Get the quaternion equivalent to Euler angles +// NOTE: Rotation order is ZYX +RMAPI Quaternion QuaternionFromEuler(float pitch, float yaw, float roll) +{ + Quaternion result = { 0 }; + + float x0 = cosf(pitch*0.5f); + float x1 = sinf(pitch*0.5f); + float y0 = cosf(yaw*0.5f); + float y1 = sinf(yaw*0.5f); + float z0 = cosf(roll*0.5f); + float z1 = sinf(roll*0.5f); + + result.x = x1*y0*z0 - x0*y1*z1; + result.y = x0*y1*z0 + x1*y0*z1; + result.z = x0*y0*z1 - x1*y1*z0; + result.w = x0*y0*z0 + x1*y1*z1; + + return result; +} + +// Get the Euler angles equivalent to quaternion (roll, pitch, yaw) +// NOTE: Angles are returned in a Vector3 struct in radians +RMAPI Vector3 QuaternionToEuler(Quaternion q) +{ + Vector3 result = { 0 }; + + // Roll (x-axis rotation) + float x0 = 2.0f*(q.w*q.x + q.y*q.z); + float x1 = 1.0f - 2.0f*(q.x*q.x + q.y*q.y); + result.x = atan2f(x0, x1); + + // Pitch (y-axis rotation) + float y0 = 2.0f*(q.w*q.y - q.z*q.x); + y0 = y0 > 1.0f ? 1.0f : y0; + y0 = y0 < -1.0f ? -1.0f : y0; + result.y = asinf(y0); + + // Yaw (z-axis rotation) + float z0 = 2.0f*(q.w*q.z + q.x*q.y); + float z1 = 1.0f - 2.0f*(q.y*q.y + q.z*q.z); + result.z = atan2f(z0, z1); + + return result; +} + +// Transform a quaternion given a transformation matrix +RMAPI Quaternion QuaternionTransform(Quaternion q, Matrix mat) +{ + Quaternion result = { 0 }; + + result.x = mat.m0*q.x + mat.m4*q.y + mat.m8*q.z + mat.m12*q.w; + result.y = mat.m1*q.x + mat.m5*q.y + mat.m9*q.z + mat.m13*q.w; + result.z = mat.m2*q.x + mat.m6*q.y + mat.m10*q.z + mat.m14*q.w; + result.w = mat.m3*q.x + mat.m7*q.y + mat.m11*q.z + mat.m15*q.w; + + return result; +} + +#endif // RAYMATH_H diff --git a/include/rcamera.h b/include/rcamera.h new file mode 100644 index 0000000..2a86e36 --- /dev/null +++ b/include/rcamera.h @@ -0,0 +1,567 @@ +/******************************************************************************************* +* +* rcamera - Basic camera system for multiple camera modes +* +* NOTE: Memory footprint of this library is aproximately 52 bytes (global variables) +* +* CONFIGURATION: +* +* #define CAMERA_IMPLEMENTATION +* Generates the implementation of the library into the included file. +* If not defined, the library is in header only mode and can be included in other headers +* or source files without problems. But only ONE file should hold the implementation. +* +* #define CAMERA_STANDALONE +* If defined, the library can be used as standalone as a camera system but some +* functions must be redefined to manage inputs accordingly. +* +* CONTRIBUTORS: +* Ramon Santamaria: Supervision, review, update and maintenance +* Marc Palau: Initial implementation (2014) +* +* +* LICENSE: zlib/libpng +* +* Copyright (c) 2015-2021 Ramon Santamaria (@raysan5) +* +* This software is provided "as-is", without any express or implied warranty. In no event +* will the authors be held liable for any damages arising from the use of this software. +* +* Permission is granted to anyone to use this software for any purpose, including commercial +* applications, and to alter it and redistribute it freely, subject to the following restrictions: +* +* 1. The origin of this software must not be misrepresented; you must not claim that you +* wrote the original software. If you use this software in a product, an acknowledgment +* in the product documentation would be appreciated but is not required. +* +* 2. Altered source versions must be plainly marked as such, and must not be misrepresented +* as being the original software. +* +* 3. This notice may not be removed or altered from any source distribution. +* +**********************************************************************************************/ + +#ifndef RCAMERA_H +#define RCAMERA_H + +//---------------------------------------------------------------------------------- +// Defines and Macros +//---------------------------------------------------------------------------------- +//... + +//---------------------------------------------------------------------------------- +// Types and Structures Definition +// NOTE: Below types are required for CAMERA_STANDALONE usage +//---------------------------------------------------------------------------------- +#if defined(CAMERA_STANDALONE) + // Vector2 type + typedef struct Vector2 { + float x; + float y; + } Vector2; + + // Vector3 type + typedef struct Vector3 { + float x; + float y; + float z; + } Vector3; + + // Camera type, defines a camera position/orientation in 3d space + typedef struct Camera3D { + Vector3 position; // Camera position + Vector3 target; // Camera target it looks-at + Vector3 up; // Camera up vector (rotation over its axis) + float fovy; // Camera field-of-view apperture in Y (degrees) in perspective, used as near plane width in orthographic + int type; // Camera type, defines projection type: CAMERA_PERSPECTIVE or CAMERA_ORTHOGRAPHIC + } Camera3D; + + typedef Camera3D Camera; // Camera type fallback, defaults to Camera3D + + // Camera system modes + typedef enum { + CAMERA_CUSTOM = 0, + CAMERA_FREE, + CAMERA_ORBITAL, + CAMERA_FIRST_PERSON, + CAMERA_THIRD_PERSON + } CameraMode; + + // Camera projection modes + typedef enum { + CAMERA_PERSPECTIVE = 0, + CAMERA_ORTHOGRAPHIC + } CameraProjection; +#endif + +//---------------------------------------------------------------------------------- +// Global Variables Definition +//---------------------------------------------------------------------------------- +//... + +//---------------------------------------------------------------------------------- +// Module Functions Declaration +//---------------------------------------------------------------------------------- + +#ifdef __cplusplus +extern "C" { // Prevents name mangling of functions +#endif + +#if defined(CAMERA_STANDALONE) +void SetCameraMode(Camera camera, int mode); // Set camera mode (multiple camera modes available) +void UpdateCamera(Camera *camera); // Update camera position for selected mode + +void SetCameraPanControl(int keyPan); // Set camera pan key to combine with mouse movement (free camera) +void SetCameraAltControl(int keyAlt); // Set camera alt key to combine with mouse movement (free camera) +void SetCameraSmoothZoomControl(int szoomKey); // Set camera smooth zoom key to combine with mouse (free camera) +void SetCameraMoveControls(int keyFront, int keyBack, + int keyRight, int keyLeft, + int keyUp, int keyDown); // Set camera move controls (1st person and 3rd person cameras) +#endif + +#ifdef __cplusplus +} +#endif + +#endif // CAMERA_H + + +/*********************************************************************************** +* +* CAMERA IMPLEMENTATION +* +************************************************************************************/ + +#if defined(CAMERA_IMPLEMENTATION) + +#include // Required for: sinf(), cosf(), sqrtf() + +//---------------------------------------------------------------------------------- +// Defines and Macros +//---------------------------------------------------------------------------------- +#ifndef PI + #define PI 3.14159265358979323846 +#endif +#ifndef DEG2RAD + #define DEG2RAD (PI/180.0f) +#endif +#ifndef RAD2DEG + #define RAD2DEG (180.0f/PI) +#endif + +// Camera mouse movement sensitivity +#define CAMERA_MOUSE_MOVE_SENSITIVITY 0.003f +#define CAMERA_MOUSE_SCROLL_SENSITIVITY 1.5f + +// FREE_CAMERA +#define CAMERA_FREE_MOUSE_SENSITIVITY 0.01f +#define CAMERA_FREE_DISTANCE_MIN_CLAMP 0.3f +#define CAMERA_FREE_DISTANCE_MAX_CLAMP 120.0f +#define CAMERA_FREE_MIN_CLAMP 85.0f +#define CAMERA_FREE_MAX_CLAMP -85.0f +#define CAMERA_FREE_SMOOTH_ZOOM_SENSITIVITY 0.05f +#define CAMERA_FREE_PANNING_DIVIDER 5.1f + +// ORBITAL_CAMERA +#define CAMERA_ORBITAL_SPEED 0.01f // Radians per frame + +// FIRST_PERSON +//#define CAMERA_FIRST_PERSON_MOUSE_SENSITIVITY 0.003f +#define CAMERA_FIRST_PERSON_FOCUS_DISTANCE 25.0f +#define CAMERA_FIRST_PERSON_MIN_CLAMP 89.0f +#define CAMERA_FIRST_PERSON_MAX_CLAMP -89.0f + +#define CAMERA_FIRST_PERSON_STEP_TRIGONOMETRIC_DIVIDER 8.0f +#define CAMERA_FIRST_PERSON_STEP_DIVIDER 30.0f +#define CAMERA_FIRST_PERSON_WAVING_DIVIDER 200.0f + +// THIRD_PERSON +//#define CAMERA_THIRD_PERSON_MOUSE_SENSITIVITY 0.003f +#define CAMERA_THIRD_PERSON_DISTANCE_CLAMP 1.2f +#define CAMERA_THIRD_PERSON_MIN_CLAMP 5.0f +#define CAMERA_THIRD_PERSON_MAX_CLAMP -85.0f +#define CAMERA_THIRD_PERSON_OFFSET (Vector3){ 0.4f, 0.0f, 0.0f } + +// PLAYER (used by camera) +#define PLAYER_MOVEMENT_SENSITIVITY 20.0f + +//---------------------------------------------------------------------------------- +// Types and Structures Definition +//---------------------------------------------------------------------------------- +// Camera move modes (first person and third person cameras) +typedef enum { + MOVE_FRONT = 0, + MOVE_BACK, + MOVE_RIGHT, + MOVE_LEFT, + MOVE_UP, + MOVE_DOWN +} CameraMove; + +// Camera global state context data [56 bytes] +typedef struct { + unsigned int mode; // Current camera mode + float targetDistance; // Camera distance from position to target + float playerEyesPosition; // Player eyes position from ground (in meters) + Vector2 angle; // Camera angle in plane XZ + Vector2 previousMousePosition; // Previous mouse position + + // Camera movement control keys + int moveControl[6]; // Move controls (CAMERA_FIRST_PERSON) + int smoothZoomControl; // Smooth zoom control key + int altControl; // Alternative control key + int panControl; // Pan view control key +} CameraData; + +//---------------------------------------------------------------------------------- +// Global Variables Definition +//---------------------------------------------------------------------------------- +static CameraData CAMERA = { // Global CAMERA state context + .mode = 0, + .targetDistance = 0, + .playerEyesPosition = 1.85f, + .angle = { 0 }, + .previousMousePosition = { 0 }, + .moveControl = { 'W', 'S', 'D', 'A', 'E', 'Q' }, + .smoothZoomControl = 341, // raylib: KEY_LEFT_CONTROL + .altControl = 342, // raylib: KEY_LEFT_ALT + .panControl = 2 // raylib: MOUSE_BUTTON_MIDDLE +}; + +//---------------------------------------------------------------------------------- +// Module specific Functions Declaration +//---------------------------------------------------------------------------------- +#if defined(CAMERA_STANDALONE) +// NOTE: Camera controls depend on some raylib input functions +static void EnableCursor() {} // Unlock cursor +static void DisableCursor() {} // Lock cursor + +static int IsKeyDown(int key) { return 0; } + +static int IsMouseButtonDown(int button) { return 0;} +static float GetMouseWheelMove() { return 0.0f; } +static Vector2 GetMousePosition() { return (Vector2){ 0.0f, 0.0f }; } +#endif + +//---------------------------------------------------------------------------------- +// Module Functions Definition +//---------------------------------------------------------------------------------- + +// Select camera mode (multiple camera modes available) +void SetCameraMode(Camera camera, int mode) +{ + Vector3 v1 = camera.position; + Vector3 v2 = camera.target; + + float dx = v2.x - v1.x; + float dy = v2.y - v1.y; + float dz = v2.z - v1.z; + + CAMERA.targetDistance = sqrtf(dx*dx + dy*dy + dz*dz); // Distance to target + + // Camera angle calculation + CAMERA.angle.x = atan2f(dx, dz); // Camera angle in plane XZ (0 aligned with Z, move positive CCW) + CAMERA.angle.y = atan2f(dy, sqrtf(dx*dx + dz*dz)); // Camera angle in plane XY (0 aligned with X, move positive CW) + + CAMERA.playerEyesPosition = camera.position.y; // Init player eyes position to camera Y position + + CAMERA.previousMousePosition = GetMousePosition(); // Init mouse position + + // Lock cursor for first person and third person cameras + if ((mode == CAMERA_FIRST_PERSON) || (mode == CAMERA_THIRD_PERSON)) DisableCursor(); + else EnableCursor(); + + CAMERA.mode = mode; +} + +// Update camera depending on selected mode +// NOTE: Camera controls depend on some raylib functions: +// System: EnableCursor(), DisableCursor() +// Mouse: IsMouseButtonDown(), GetMousePosition(), GetMouseWheelMove() +// Keys: IsKeyDown() +void UpdateCamera(Camera *camera) +{ + static int swingCounter = 0; // Used for 1st person swinging movement + + // TODO: Compute CAMERA.targetDistance and CAMERA.angle here (?) + + // Mouse movement detection + Vector2 mousePositionDelta = { 0.0f, 0.0f }; + Vector2 mousePosition = GetMousePosition(); + float mouseWheelMove = GetMouseWheelMove(); + + // Keys input detection + // TODO: Input detection is raylib-dependant, it could be moved outside the module + bool keyPan = IsMouseButtonDown(CAMERA.panControl); + bool keyAlt = IsKeyDown(CAMERA.altControl); + bool szoomKey = IsKeyDown(CAMERA.smoothZoomControl); + bool direction[6] = { IsKeyDown(CAMERA.moveControl[MOVE_FRONT]), + IsKeyDown(CAMERA.moveControl[MOVE_BACK]), + IsKeyDown(CAMERA.moveControl[MOVE_RIGHT]), + IsKeyDown(CAMERA.moveControl[MOVE_LEFT]), + IsKeyDown(CAMERA.moveControl[MOVE_UP]), + IsKeyDown(CAMERA.moveControl[MOVE_DOWN]) }; + + if (CAMERA.mode != CAMERA_CUSTOM) + { + mousePositionDelta.x = mousePosition.x - CAMERA.previousMousePosition.x; + mousePositionDelta.y = mousePosition.y - CAMERA.previousMousePosition.y; + + CAMERA.previousMousePosition = mousePosition; + } + + // Support for multiple automatic camera modes + // NOTE: In case of CAMERA_CUSTOM nothing happens here, user must update it manually + switch (CAMERA.mode) + { + case CAMERA_FREE: // Camera free controls, using standard 3d-content-creation scheme + { + // Camera zoom + if ((CAMERA.targetDistance < CAMERA_FREE_DISTANCE_MAX_CLAMP) && (mouseWheelMove < 0)) + { + CAMERA.targetDistance -= (mouseWheelMove*CAMERA_MOUSE_SCROLL_SENSITIVITY); + if (CAMERA.targetDistance > CAMERA_FREE_DISTANCE_MAX_CLAMP) CAMERA.targetDistance = CAMERA_FREE_DISTANCE_MAX_CLAMP; + } + + // Camera looking down + else if ((camera->position.y > camera->target.y) && (CAMERA.targetDistance == CAMERA_FREE_DISTANCE_MAX_CLAMP) && (mouseWheelMove < 0)) + { + camera->target.x += mouseWheelMove*(camera->target.x - camera->position.x)*CAMERA_MOUSE_SCROLL_SENSITIVITY/CAMERA.targetDistance; + camera->target.y += mouseWheelMove*(camera->target.y - camera->position.y)*CAMERA_MOUSE_SCROLL_SENSITIVITY/CAMERA.targetDistance; + camera->target.z += mouseWheelMove*(camera->target.z - camera->position.z)*CAMERA_MOUSE_SCROLL_SENSITIVITY/CAMERA.targetDistance; + } + else if ((camera->position.y > camera->target.y) && (camera->target.y >= 0)) + { + camera->target.x += mouseWheelMove*(camera->target.x - camera->position.x)*CAMERA_MOUSE_SCROLL_SENSITIVITY/CAMERA.targetDistance; + camera->target.y += mouseWheelMove*(camera->target.y - camera->position.y)*CAMERA_MOUSE_SCROLL_SENSITIVITY/CAMERA.targetDistance; + camera->target.z += mouseWheelMove*(camera->target.z - camera->position.z)*CAMERA_MOUSE_SCROLL_SENSITIVITY/CAMERA.targetDistance; + + // if (camera->target.y < 0) camera->target.y = -0.001; + } + else if ((camera->position.y > camera->target.y) && (camera->target.y < 0) && (mouseWheelMove > 0)) + { + CAMERA.targetDistance -= (mouseWheelMove*CAMERA_MOUSE_SCROLL_SENSITIVITY); + if (CAMERA.targetDistance < CAMERA_FREE_DISTANCE_MIN_CLAMP) CAMERA.targetDistance = CAMERA_FREE_DISTANCE_MIN_CLAMP; + } + // Camera looking up + else if ((camera->position.y < camera->target.y) && (CAMERA.targetDistance == CAMERA_FREE_DISTANCE_MAX_CLAMP) && (mouseWheelMove < 0)) + { + camera->target.x += mouseWheelMove*(camera->target.x - camera->position.x)*CAMERA_MOUSE_SCROLL_SENSITIVITY/CAMERA.targetDistance; + camera->target.y += mouseWheelMove*(camera->target.y - camera->position.y)*CAMERA_MOUSE_SCROLL_SENSITIVITY/CAMERA.targetDistance; + camera->target.z += mouseWheelMove*(camera->target.z - camera->position.z)*CAMERA_MOUSE_SCROLL_SENSITIVITY/CAMERA.targetDistance; + } + else if ((camera->position.y < camera->target.y) && (camera->target.y <= 0)) + { + camera->target.x += mouseWheelMove*(camera->target.x - camera->position.x)*CAMERA_MOUSE_SCROLL_SENSITIVITY/CAMERA.targetDistance; + camera->target.y += mouseWheelMove*(camera->target.y - camera->position.y)*CAMERA_MOUSE_SCROLL_SENSITIVITY/CAMERA.targetDistance; + camera->target.z += mouseWheelMove*(camera->target.z - camera->position.z)*CAMERA_MOUSE_SCROLL_SENSITIVITY/CAMERA.targetDistance; + + // if (camera->target.y > 0) camera->target.y = 0.001; + } + else if ((camera->position.y < camera->target.y) && (camera->target.y > 0) && (mouseWheelMove > 0)) + { + CAMERA.targetDistance -= (mouseWheelMove*CAMERA_MOUSE_SCROLL_SENSITIVITY); + if (CAMERA.targetDistance < CAMERA_FREE_DISTANCE_MIN_CLAMP) CAMERA.targetDistance = CAMERA_FREE_DISTANCE_MIN_CLAMP; + } + + // Input keys checks + if (keyPan) + { + if (keyAlt) // Alternative key behaviour + { + if (szoomKey) + { + // Camera smooth zoom + CAMERA.targetDistance += (mousePositionDelta.y*CAMERA_FREE_SMOOTH_ZOOM_SENSITIVITY); + } + else + { + // Camera rotation + CAMERA.angle.x += mousePositionDelta.x*-CAMERA_FREE_MOUSE_SENSITIVITY; + CAMERA.angle.y += mousePositionDelta.y*-CAMERA_FREE_MOUSE_SENSITIVITY; + + // Angle clamp + if (CAMERA.angle.y > CAMERA_FREE_MIN_CLAMP*DEG2RAD) CAMERA.angle.y = CAMERA_FREE_MIN_CLAMP*DEG2RAD; + else if (CAMERA.angle.y < CAMERA_FREE_MAX_CLAMP*DEG2RAD) CAMERA.angle.y = CAMERA_FREE_MAX_CLAMP*DEG2RAD; + } + } + else + { + // Camera panning + camera->target.x += ((mousePositionDelta.x*CAMERA_FREE_MOUSE_SENSITIVITY)*cosf(CAMERA.angle.x) + (mousePositionDelta.y*CAMERA_FREE_MOUSE_SENSITIVITY)*sinf(CAMERA.angle.x)*sinf(CAMERA.angle.y))*(CAMERA.targetDistance/CAMERA_FREE_PANNING_DIVIDER); + camera->target.y += ((mousePositionDelta.y*CAMERA_FREE_MOUSE_SENSITIVITY)*cosf(CAMERA.angle.y))*(CAMERA.targetDistance/CAMERA_FREE_PANNING_DIVIDER); + camera->target.z += ((mousePositionDelta.x*-CAMERA_FREE_MOUSE_SENSITIVITY)*sinf(CAMERA.angle.x) + (mousePositionDelta.y*CAMERA_FREE_MOUSE_SENSITIVITY)*cosf(CAMERA.angle.x)*sinf(CAMERA.angle.y))*(CAMERA.targetDistance/CAMERA_FREE_PANNING_DIVIDER); + } + } + + // Update camera position with changes + camera->position.x = -sinf(CAMERA.angle.x)*CAMERA.targetDistance*cosf(CAMERA.angle.y) + camera->target.x; + camera->position.y = -sinf(CAMERA.angle.y)*CAMERA.targetDistance + camera->target.y; + camera->position.z = -cosf(CAMERA.angle.x)*CAMERA.targetDistance*cosf(CAMERA.angle.y) + camera->target.z; + + } break; + case CAMERA_ORBITAL: // Camera just orbits around target, only zoom allowed + { + CAMERA.angle.x += CAMERA_ORBITAL_SPEED; // Camera orbit angle + CAMERA.targetDistance -= (mouseWheelMove*CAMERA_MOUSE_SCROLL_SENSITIVITY); // Camera zoom + + // Camera distance clamp + if (CAMERA.targetDistance < CAMERA_THIRD_PERSON_DISTANCE_CLAMP) CAMERA.targetDistance = CAMERA_THIRD_PERSON_DISTANCE_CLAMP; + + // Update camera position with changes + camera->position.x = sinf(CAMERA.angle.x)*CAMERA.targetDistance*cosf(CAMERA.angle.y) + camera->target.x; + camera->position.y = ((CAMERA.angle.y <= 0.0f)? 1 : -1)*sinf(CAMERA.angle.y)*CAMERA.targetDistance*sinf(CAMERA.angle.y) + camera->target.y; + camera->position.z = cosf(CAMERA.angle.x)*CAMERA.targetDistance*cosf(CAMERA.angle.y) + camera->target.z; + + } break; + case CAMERA_FIRST_PERSON: // Camera moves as in a first-person game, controls are configurable + { + camera->position.x += (sinf(CAMERA.angle.x)*direction[MOVE_BACK] - + sinf(CAMERA.angle.x)*direction[MOVE_FRONT] - + cosf(CAMERA.angle.x)*direction[MOVE_LEFT] + + cosf(CAMERA.angle.x)*direction[MOVE_RIGHT])/PLAYER_MOVEMENT_SENSITIVITY; + + camera->position.y += (sinf(CAMERA.angle.y)*direction[MOVE_FRONT] - + sinf(CAMERA.angle.y)*direction[MOVE_BACK] + + 1.0f*direction[MOVE_UP] - 1.0f*direction[MOVE_DOWN])/PLAYER_MOVEMENT_SENSITIVITY; + + camera->position.z += (cosf(CAMERA.angle.x)*direction[MOVE_BACK] - + cosf(CAMERA.angle.x)*direction[MOVE_FRONT] + + sinf(CAMERA.angle.x)*direction[MOVE_LEFT] - + sinf(CAMERA.angle.x)*direction[MOVE_RIGHT])/PLAYER_MOVEMENT_SENSITIVITY; + + // Camera orientation calculation + CAMERA.angle.x += (mousePositionDelta.x*-CAMERA_MOUSE_MOVE_SENSITIVITY); + CAMERA.angle.y += (mousePositionDelta.y*-CAMERA_MOUSE_MOVE_SENSITIVITY); + + // Angle clamp + if (CAMERA.angle.y > CAMERA_FIRST_PERSON_MIN_CLAMP*DEG2RAD) CAMERA.angle.y = CAMERA_FIRST_PERSON_MIN_CLAMP*DEG2RAD; + else if (CAMERA.angle.y < CAMERA_FIRST_PERSON_MAX_CLAMP*DEG2RAD) CAMERA.angle.y = CAMERA_FIRST_PERSON_MAX_CLAMP*DEG2RAD; + + // Calculate translation matrix + Matrix matTranslation = { 1.0f, 0.0f, 0.0f, 0.0f, + 0.0f, 1.0f, 0.0f, 0.0f, + 0.0f, 0.0f, 1.0f, (CAMERA.targetDistance/CAMERA_FREE_PANNING_DIVIDER), + 0.0f, 0.0f, 0.0f, 1.0f }; + + // Calculate rotation matrix + Matrix matRotation = { 1.0f, 0.0f, 0.0f, 0.0f, + 0.0f, 1.0f, 0.0f, 0.0f, + 0.0f, 0.0f, 1.0f, 0.0f, + 0.0f, 0.0f, 0.0f, 1.0f }; + + float cosz = cosf(0.0f); + float sinz = sinf(0.0f); + float cosy = cosf(-(PI*2 - CAMERA.angle.x)); + float siny = sinf(-(PI*2 - CAMERA.angle.x)); + float cosx = cosf(-(PI*2 - CAMERA.angle.y)); + float sinx = sinf(-(PI*2 - CAMERA.angle.y)); + + matRotation.m0 = cosz*cosy; + matRotation.m4 = (cosz*siny*sinx) - (sinz*cosx); + matRotation.m8 = (cosz*siny*cosx) + (sinz*sinx); + matRotation.m1 = sinz*cosy; + matRotation.m5 = (sinz*siny*sinx) + (cosz*cosx); + matRotation.m9 = (sinz*siny*cosx) - (cosz*sinx); + matRotation.m2 = -siny; + matRotation.m6 = cosy*sinx; + matRotation.m10= cosy*cosx; + + // Multiply translation and rotation matrices + Matrix matTransform = { 0 }; + matTransform.m0 = matTranslation.m0*matRotation.m0 + matTranslation.m1*matRotation.m4 + matTranslation.m2*matRotation.m8 + matTranslation.m3*matRotation.m12; + matTransform.m1 = matTranslation.m0*matRotation.m1 + matTranslation.m1*matRotation.m5 + matTranslation.m2*matRotation.m9 + matTranslation.m3*matRotation.m13; + matTransform.m2 = matTranslation.m0*matRotation.m2 + matTranslation.m1*matRotation.m6 + matTranslation.m2*matRotation.m10 + matTranslation.m3*matRotation.m14; + matTransform.m3 = matTranslation.m0*matRotation.m3 + matTranslation.m1*matRotation.m7 + matTranslation.m2*matRotation.m11 + matTranslation.m3*matRotation.m15; + matTransform.m4 = matTranslation.m4*matRotation.m0 + matTranslation.m5*matRotation.m4 + matTranslation.m6*matRotation.m8 + matTranslation.m7*matRotation.m12; + matTransform.m5 = matTranslation.m4*matRotation.m1 + matTranslation.m5*matRotation.m5 + matTranslation.m6*matRotation.m9 + matTranslation.m7*matRotation.m13; + matTransform.m6 = matTranslation.m4*matRotation.m2 + matTranslation.m5*matRotation.m6 + matTranslation.m6*matRotation.m10 + matTranslation.m7*matRotation.m14; + matTransform.m7 = matTranslation.m4*matRotation.m3 + matTranslation.m5*matRotation.m7 + matTranslation.m6*matRotation.m11 + matTranslation.m7*matRotation.m15; + matTransform.m8 = matTranslation.m8*matRotation.m0 + matTranslation.m9*matRotation.m4 + matTranslation.m10*matRotation.m8 + matTranslation.m11*matRotation.m12; + matTransform.m9 = matTranslation.m8*matRotation.m1 + matTranslation.m9*matRotation.m5 + matTranslation.m10*matRotation.m9 + matTranslation.m11*matRotation.m13; + matTransform.m10 = matTranslation.m8*matRotation.m2 + matTranslation.m9*matRotation.m6 + matTranslation.m10*matRotation.m10 + matTranslation.m11*matRotation.m14; + matTransform.m11 = matTranslation.m8*matRotation.m3 + matTranslation.m9*matRotation.m7 + matTranslation.m10*matRotation.m11 + matTranslation.m11*matRotation.m15; + matTransform.m12 = matTranslation.m12*matRotation.m0 + matTranslation.m13*matRotation.m4 + matTranslation.m14*matRotation.m8 + matTranslation.m15*matRotation.m12; + matTransform.m13 = matTranslation.m12*matRotation.m1 + matTranslation.m13*matRotation.m5 + matTranslation.m14*matRotation.m9 + matTranslation.m15*matRotation.m13; + matTransform.m14 = matTranslation.m12*matRotation.m2 + matTranslation.m13*matRotation.m6 + matTranslation.m14*matRotation.m10 + matTranslation.m15*matRotation.m14; + matTransform.m15 = matTranslation.m12*matRotation.m3 + matTranslation.m13*matRotation.m7 + matTranslation.m14*matRotation.m11 + matTranslation.m15*matRotation.m15; + + camera->target.x = camera->position.x - matTransform.m12; + camera->target.y = camera->position.y - matTransform.m13; + camera->target.z = camera->position.z - matTransform.m14; + + // If movement detected (some key pressed), increase swinging + for (int i = 0; i < 6; i++) if (direction[i]) { swingCounter++; break; } + + // Camera position update + // NOTE: On CAMERA_FIRST_PERSON player Y-movement is limited to player 'eyes position' + camera->position.y = CAMERA.playerEyesPosition - sinf(swingCounter/CAMERA_FIRST_PERSON_STEP_TRIGONOMETRIC_DIVIDER)/CAMERA_FIRST_PERSON_STEP_DIVIDER; + + camera->up.x = sinf(swingCounter/(CAMERA_FIRST_PERSON_STEP_TRIGONOMETRIC_DIVIDER*2))/CAMERA_FIRST_PERSON_WAVING_DIVIDER; + camera->up.z = -sinf(swingCounter/(CAMERA_FIRST_PERSON_STEP_TRIGONOMETRIC_DIVIDER*2))/CAMERA_FIRST_PERSON_WAVING_DIVIDER; + + } break; + case CAMERA_THIRD_PERSON: // Camera moves as in a third-person game, following target at a distance, controls are configurable + { + camera->position.x += (sinf(CAMERA.angle.x)*direction[MOVE_BACK] - + sinf(CAMERA.angle.x)*direction[MOVE_FRONT] - + cosf(CAMERA.angle.x)*direction[MOVE_LEFT] + + cosf(CAMERA.angle.x)*direction[MOVE_RIGHT])/PLAYER_MOVEMENT_SENSITIVITY; + + camera->position.y += (sinf(CAMERA.angle.y)*direction[MOVE_FRONT] - + sinf(CAMERA.angle.y)*direction[MOVE_BACK] + + 1.0f*direction[MOVE_UP] - 1.0f*direction[MOVE_DOWN])/PLAYER_MOVEMENT_SENSITIVITY; + + camera->position.z += (cosf(CAMERA.angle.x)*direction[MOVE_BACK] - + cosf(CAMERA.angle.x)*direction[MOVE_FRONT] + + sinf(CAMERA.angle.x)*direction[MOVE_LEFT] - + sinf(CAMERA.angle.x)*direction[MOVE_RIGHT])/PLAYER_MOVEMENT_SENSITIVITY; + + // Camera orientation calculation + CAMERA.angle.x += (mousePositionDelta.x*-CAMERA_MOUSE_MOVE_SENSITIVITY); + CAMERA.angle.y += (mousePositionDelta.y*-CAMERA_MOUSE_MOVE_SENSITIVITY); + + // Angle clamp + if (CAMERA.angle.y > CAMERA_THIRD_PERSON_MIN_CLAMP*DEG2RAD) CAMERA.angle.y = CAMERA_THIRD_PERSON_MIN_CLAMP*DEG2RAD; + else if (CAMERA.angle.y < CAMERA_THIRD_PERSON_MAX_CLAMP*DEG2RAD) CAMERA.angle.y = CAMERA_THIRD_PERSON_MAX_CLAMP*DEG2RAD; + + // Camera zoom + CAMERA.targetDistance -= (mouseWheelMove*CAMERA_MOUSE_SCROLL_SENSITIVITY); + + // Camera distance clamp + if (CAMERA.targetDistance < CAMERA_THIRD_PERSON_DISTANCE_CLAMP) CAMERA.targetDistance = CAMERA_THIRD_PERSON_DISTANCE_CLAMP; + + camera->position.x = sinf(CAMERA.angle.x)*CAMERA.targetDistance*cosf(CAMERA.angle.y) + camera->target.x; + + if (CAMERA.angle.y <= 0.0f) camera->position.y = sinf(CAMERA.angle.y)*CAMERA.targetDistance*sinf(CAMERA.angle.y) + camera->target.y; + else camera->position.y = -sinf(CAMERA.angle.y)*CAMERA.targetDistance*sinf(CAMERA.angle.y) + camera->target.y; + + camera->position.z = cosf(CAMERA.angle.x)*CAMERA.targetDistance*cosf(CAMERA.angle.y) + camera->target.z; + + } break; + case CAMERA_CUSTOM: break; + default: break; + } +} + +// Set camera pan key to combine with mouse movement (free camera) +void SetCameraPanControl(int keyPan) { CAMERA.panControl = keyPan; } + +// Set camera alt key to combine with mouse movement (free camera) +void SetCameraAltControl(int keyAlt) { CAMERA.altControl = keyAlt; } + +// Set camera smooth zoom key to combine with mouse (free camera) +void SetCameraSmoothZoomControl(int szoomKey) { CAMERA.smoothZoomControl = szoomKey; } + +// Set camera move controls (1st person and 3rd person cameras) +void SetCameraMoveControls(int keyFront, int keyBack, int keyRight, int keyLeft, int keyUp, int keyDown) +{ + CAMERA.moveControl[MOVE_FRONT] = keyFront; + CAMERA.moveControl[MOVE_BACK] = keyBack; + CAMERA.moveControl[MOVE_RIGHT] = keyRight; + CAMERA.moveControl[MOVE_LEFT] = keyLeft; + CAMERA.moveControl[MOVE_UP] = keyUp; + CAMERA.moveControl[MOVE_DOWN] = keyDown; +} + +#endif // CAMERA_IMPLEMENTATION diff --git a/include/rgestures.h b/include/rgestures.h new file mode 100644 index 0000000..bb9dd16 --- /dev/null +++ b/include/rgestures.h @@ -0,0 +1,566 @@ +/********************************************************************************************** +* +* rgestures - Gestures system, gestures processing based on input events (touch/mouse) +* +* NOTE: Memory footprint of this library is aproximately 128 bytes (global variables) +* +* CONFIGURATION: +* +* #define GESTURES_IMPLEMENTATION +* Generates the implementation of the library into the included file. +* If not defined, the library is in header only mode and can be included in other headers +* or source files without problems. But only ONE file should hold the implementation. +* +* #define GESTURES_STANDALONE +* If defined, the library can be used as standalone to process gesture events with +* no external dependencies. +* +* CONTRIBUTORS: +* Marc Palau: Initial implementation (2014) +* Albert Martos: Complete redesign and testing (2015) +* Ian Eito: Complete redesign and testing (2015) +* Ramon Santamaria: Supervision, review, update and maintenance +* +* +* LICENSE: zlib/libpng +* +* Copyright (c) 2014-2021 Ramon Santamaria (@raysan5) +* +* This software is provided "as-is", without any express or implied warranty. In no event +* will the authors be held liable for any damages arising from the use of this software. +* +* Permission is granted to anyone to use this software for any purpose, including commercial +* applications, and to alter it and redistribute it freely, subject to the following restrictions: +* +* 1. The origin of this software must not be misrepresented; you must not claim that you +* wrote the original software. If you use this software in a product, an acknowledgment +* in the product documentation would be appreciated but is not required. +* +* 2. Altered source versions must be plainly marked as such, and must not be misrepresented +* as being the original software. +* +* 3. This notice may not be removed or altered from any source distribution. +* +**********************************************************************************************/ + +#ifndef RGESTURES_H +#define RGESTURES_H + +#ifndef PI + #define PI 3.14159265358979323846 +#endif + +//---------------------------------------------------------------------------------- +// Defines and Macros +//---------------------------------------------------------------------------------- +#ifndef MAX_TOUCH_POINTS + #define MAX_TOUCH_POINTS 8 // Maximum number of touch points supported +#endif + +//---------------------------------------------------------------------------------- +// Types and Structures Definition +// NOTE: Below types are required for GESTURES_STANDALONE usage +//---------------------------------------------------------------------------------- +// Boolean type +#if defined(__STDC__) && __STDC_VERSION__ >= 199901L + #include +#elif !defined(__cplusplus) && !defined(bool) && !defined(RL_BOOL_TYPE) + typedef enum bool { false, true } bool; +#endif + +#if !defined(RL_VECTOR2_TYPE) +// Vector2 type +typedef struct Vector2 { + float x; + float y; +} Vector2; +#endif + +#if defined(GESTURES_STANDALONE) +// Gestures type +// NOTE: It could be used as flags to enable only some gestures +typedef enum { + GESTURE_NONE = 0, + GESTURE_TAP = 1, + GESTURE_DOUBLETAP = 2, + GESTURE_HOLD = 4, + GESTURE_DRAG = 8, + GESTURE_SWIPE_RIGHT = 16, + GESTURE_SWIPE_LEFT = 32, + GESTURE_SWIPE_UP = 64, + GESTURE_SWIPE_DOWN = 128, + GESTURE_PINCH_IN = 256, + GESTURE_PINCH_OUT = 512 +} Gesture; +#endif + +typedef enum { + TOUCH_ACTION_UP = 0, + TOUCH_ACTION_DOWN, + TOUCH_ACTION_MOVE, + TOUCH_ACTION_CANCEL +} TouchAction; + +// Gesture event +typedef struct { + int touchAction; + int pointCount; + int pointId[MAX_TOUCH_POINTS]; + Vector2 position[MAX_TOUCH_POINTS]; +} GestureEvent; + +//---------------------------------------------------------------------------------- +// Global Variables Definition +//---------------------------------------------------------------------------------- +//... + +//---------------------------------------------------------------------------------- +// Module Functions Declaration +//---------------------------------------------------------------------------------- + +#ifdef __cplusplus +extern "C" { // Prevents name mangling of functions +#endif + +void ProcessGestureEvent(GestureEvent event); // Process gesture event and translate it into gestures +void UpdateGestures(void); // Update gestures detected (must be called every frame) + +#if defined(GESTURES_STANDALONE) +void SetGesturesEnabled(unsigned int flags); // Enable a set of gestures using flags +bool IsGestureDetected(int gesture); // Check if a gesture have been detected +int GetGestureDetected(void); // Get latest detected gesture + +float GetGestureHoldDuration(void); // Get gesture hold time in milliseconds +Vector2 GetGestureDragVector(void); // Get gesture drag vector +float GetGestureDragAngle(void); // Get gesture drag angle +Vector2 GetGesturePinchVector(void); // Get gesture pinch delta +float GetGesturePinchAngle(void); // Get gesture pinch angle +#endif + +#ifdef __cplusplus +} +#endif + +#endif // GESTURES_H + +/*********************************************************************************** +* +* GESTURES IMPLEMENTATION +* +************************************************************************************/ + +#if defined(GESTURES_IMPLEMENTATION) + +#if defined(_WIN32) + #if defined(__cplusplus) + extern "C" { // Prevents name mangling of functions + #endif + // Functions required to query time on Windows + int __stdcall QueryPerformanceCounter(unsigned long long int *lpPerformanceCount); + int __stdcall QueryPerformanceFrequency(unsigned long long int *lpFrequency); + #if defined(__cplusplus) + } + #endif +#elif defined(__linux__) + #if _POSIX_C_SOURCE < 199309L + #undef _POSIX_C_SOURCE + #define _POSIX_C_SOURCE 199309L // Required for CLOCK_MONOTONIC if compiled with c99 without gnu ext. + #endif + #include // Required for: timespec + #include // Required for: clock_gettime() + + #include // Required for: sqrtf(), atan2f() +#endif +#if defined(__APPLE__) // macOS also defines __MACH__ + #include // Required for: clock_get_time() + #include // Required for: mach_timespec_t +#endif + +//---------------------------------------------------------------------------------- +// Defines and Macros +//---------------------------------------------------------------------------------- +#define FORCE_TO_SWIPE 0.0005f // Swipe force, measured in normalized screen units/time +#define MINIMUM_DRAG 0.015f // Drag minimum force, measured in normalized screen units (0.0f to 1.0f) +#define MINIMUM_PINCH 0.005f // Pinch minimum force, measured in normalized screen units (0.0f to 1.0f) +#define TAP_TIMEOUT 300 // Tap minimum time, measured in milliseconds +#define PINCH_TIMEOUT 300 // Pinch minimum time, measured in milliseconds +#define DOUBLETAP_RANGE 0.03f // DoubleTap range, measured in normalized screen units (0.0f to 1.0f) + +//---------------------------------------------------------------------------------- +// Types and Structures Definition +//---------------------------------------------------------------------------------- + +// Gestures module state context [136 bytes] +typedef struct { + unsigned int current; // Current detected gesture + unsigned int enabledFlags; // Enabled gestures flags + struct { + int firstId; // Touch id for first touch point + int pointCount; // Touch points counter + double eventTime; // Time stamp when an event happened + Vector2 upPosition; // Touch up position + Vector2 downPositionA; // First touch down position + Vector2 downPositionB; // Second touch down position + Vector2 downDragPosition; // Touch drag position + Vector2 moveDownPositionA; // First touch down position on move + Vector2 moveDownPositionB; // Second touch down position on move + int tapCounter; // TAP counter (one tap implies TOUCH_ACTION_DOWN and TOUCH_ACTION_UP actions) + } Touch; + struct { + bool resetRequired; // HOLD reset to get first touch point again + double timeDuration; // HOLD duration in milliseconds + } Hold; + struct { + Vector2 vector; // DRAG vector (between initial and current position) + float angle; // DRAG angle (relative to x-axis) + float distance; // DRAG distance (from initial touch point to final) (normalized [0..1]) + float intensity; // DRAG intensity, how far why did the DRAG (pixels per frame) + } Drag; + struct { + bool start; // SWIPE used to define when start measuring GESTURES.Swipe.timeDuration + double timeDuration; // SWIPE time to calculate drag intensity + } Swipe; + struct { + Vector2 vector; // PINCH vector (between first and second touch points) + float angle; // PINCH angle (relative to x-axis) + float distance; // PINCH displacement distance (normalized [0..1]) + } Pinch; +} GesturesData; + +//---------------------------------------------------------------------------------- +// Global Variables Definition +//---------------------------------------------------------------------------------- +static GesturesData GESTURES = { + .Touch.firstId = -1, + .current = GESTURE_NONE, // No current gesture detected + .enabledFlags = 0b0000001111111111 // All gestures supported by default +}; + +//---------------------------------------------------------------------------------- +// Module specific Functions Declaration +//---------------------------------------------------------------------------------- +static float rgVector2Angle(Vector2 initialPosition, Vector2 finalPosition); +static float rgVector2Distance(Vector2 v1, Vector2 v2); +static double rgGetCurrentTime(void); + +//---------------------------------------------------------------------------------- +// Module Functions Definition +//---------------------------------------------------------------------------------- + +// Enable only desired getures to be detected +void SetGesturesEnabled(unsigned int flags) +{ + GESTURES.enabledFlags = flags; +} + +// Check if a gesture have been detected +bool IsGestureDetected(int gesture) +{ + if ((GESTURES.enabledFlags & GESTURES.current) == gesture) return true; + else return false; +} + +// Process gesture event and translate it into gestures +void ProcessGestureEvent(GestureEvent event) +{ + // Reset required variables + GESTURES.Touch.pointCount = event.pointCount; // Required on UpdateGestures() + + if (GESTURES.Touch.pointCount == 1) // One touch point + { + if (event.touchAction == TOUCH_ACTION_DOWN) + { + GESTURES.Touch.tapCounter++; // Tap counter + + // Detect GESTURE_DOUBLE_TAP + if ((GESTURES.current == GESTURE_NONE) && (GESTURES.Touch.tapCounter >= 2) && ((rgGetCurrentTime() - GESTURES.Touch.eventTime) < TAP_TIMEOUT) && (rgVector2Distance(GESTURES.Touch.downPositionA, event.position[0]) < DOUBLETAP_RANGE)) + { + GESTURES.current = GESTURE_DOUBLETAP; + GESTURES.Touch.tapCounter = 0; + } + else // Detect GESTURE_TAP + { + GESTURES.Touch.tapCounter = 1; + GESTURES.current = GESTURE_TAP; + } + + GESTURES.Touch.downPositionA = event.position[0]; + GESTURES.Touch.downDragPosition = event.position[0]; + + GESTURES.Touch.upPosition = GESTURES.Touch.downPositionA; + GESTURES.Touch.eventTime = rgGetCurrentTime(); + + GESTURES.Touch.firstId = event.pointId[0]; + + GESTURES.Drag.vector = (Vector2){ 0.0f, 0.0f }; + } + else if (event.touchAction == TOUCH_ACTION_UP) + { + if (GESTURES.current == GESTURE_DRAG) GESTURES.Touch.upPosition = event.position[0]; + + // NOTE: GESTURES.Drag.intensity dependend on the resolution of the screen + GESTURES.Drag.distance = rgVector2Distance(GESTURES.Touch.downPositionA, GESTURES.Touch.upPosition); + GESTURES.Drag.intensity = GESTURES.Drag.distance/(float)((rgGetCurrentTime() - GESTURES.Swipe.timeDuration)); + + GESTURES.Swipe.start = false; + + // Detect GESTURE_SWIPE + if ((GESTURES.Drag.intensity > FORCE_TO_SWIPE) && (GESTURES.Touch.firstId == event.pointId[0])) + { + // NOTE: Angle should be inverted in Y + GESTURES.Drag.angle = 360.0f - rgVector2Angle(GESTURES.Touch.downPositionA, GESTURES.Touch.upPosition); + + if ((GESTURES.Drag.angle < 30) || (GESTURES.Drag.angle > 330)) GESTURES.current = GESTURE_SWIPE_RIGHT; // Right + else if ((GESTURES.Drag.angle > 30) && (GESTURES.Drag.angle < 120)) GESTURES.current = GESTURE_SWIPE_UP; // Up + else if ((GESTURES.Drag.angle > 120) && (GESTURES.Drag.angle < 210)) GESTURES.current = GESTURE_SWIPE_LEFT; // Left + else if ((GESTURES.Drag.angle > 210) && (GESTURES.Drag.angle < 300)) GESTURES.current = GESTURE_SWIPE_DOWN; // Down + else GESTURES.current = GESTURE_NONE; + } + else + { + GESTURES.Drag.distance = 0.0f; + GESTURES.Drag.intensity = 0.0f; + GESTURES.Drag.angle = 0.0f; + + GESTURES.current = GESTURE_NONE; + } + + GESTURES.Touch.downDragPosition = (Vector2){ 0.0f, 0.0f }; + GESTURES.Touch.pointCount = 0; + } + else if (event.touchAction == TOUCH_ACTION_MOVE) + { + if (GESTURES.current == GESTURE_DRAG) GESTURES.Touch.eventTime = rgGetCurrentTime(); + + if (!GESTURES.Swipe.start) + { + GESTURES.Swipe.timeDuration = rgGetCurrentTime(); + GESTURES.Swipe.start = true; + } + + GESTURES.Touch.moveDownPositionA = event.position[0]; + + if (GESTURES.current == GESTURE_HOLD) + { + if (GESTURES.Hold.resetRequired) GESTURES.Touch.downPositionA = event.position[0]; + + GESTURES.Hold.resetRequired = false; + + // Detect GESTURE_DRAG + if (rgVector2Distance(GESTURES.Touch.downPositionA, GESTURES.Touch.moveDownPositionA) >= MINIMUM_DRAG) + { + GESTURES.Touch.eventTime = rgGetCurrentTime(); + GESTURES.current = GESTURE_DRAG; + } + } + + GESTURES.Drag.vector.x = GESTURES.Touch.moveDownPositionA.x - GESTURES.Touch.downDragPosition.x; + GESTURES.Drag.vector.y = GESTURES.Touch.moveDownPositionA.y - GESTURES.Touch.downDragPosition.y; + } + } + else if (GESTURES.Touch.pointCount == 2) // Two touch points + { + if (event.touchAction == TOUCH_ACTION_DOWN) + { + GESTURES.Touch.downPositionA = event.position[0]; + GESTURES.Touch.downPositionB = event.position[1]; + + //GESTURES.Pinch.distance = rgVector2Distance(GESTURES.Touch.downPositionA, GESTURES.Touch.downPositionB); + + GESTURES.Pinch.vector.x = GESTURES.Touch.downPositionB.x - GESTURES.Touch.downPositionA.x; + GESTURES.Pinch.vector.y = GESTURES.Touch.downPositionB.y - GESTURES.Touch.downPositionA.y; + + GESTURES.current = GESTURE_HOLD; + GESTURES.Hold.timeDuration = rgGetCurrentTime(); + } + else if (event.touchAction == TOUCH_ACTION_MOVE) + { + GESTURES.Pinch.distance = rgVector2Distance(GESTURES.Touch.moveDownPositionA, GESTURES.Touch.moveDownPositionB); + + GESTURES.Touch.downPositionA = GESTURES.Touch.moveDownPositionA; + GESTURES.Touch.downPositionB = GESTURES.Touch.moveDownPositionB; + + GESTURES.Touch.moveDownPositionA = event.position[0]; + GESTURES.Touch.moveDownPositionB = event.position[1]; + + GESTURES.Pinch.vector.x = GESTURES.Touch.moveDownPositionB.x - GESTURES.Touch.moveDownPositionA.x; + GESTURES.Pinch.vector.y = GESTURES.Touch.moveDownPositionB.y - GESTURES.Touch.moveDownPositionA.y; + + if ((rgVector2Distance(GESTURES.Touch.downPositionA, GESTURES.Touch.moveDownPositionA) >= MINIMUM_PINCH) || (rgVector2Distance(GESTURES.Touch.downPositionB, GESTURES.Touch.moveDownPositionB) >= MINIMUM_PINCH)) + { + if ((rgVector2Distance(GESTURES.Touch.moveDownPositionA, GESTURES.Touch.moveDownPositionB) - GESTURES.Pinch.distance) < 0) GESTURES.current = GESTURE_PINCH_IN; + else GESTURES.current = GESTURE_PINCH_OUT; + } + else + { + GESTURES.current = GESTURE_HOLD; + GESTURES.Hold.timeDuration = rgGetCurrentTime(); + } + + // NOTE: Angle should be inverted in Y + GESTURES.Pinch.angle = 360.0f - rgVector2Angle(GESTURES.Touch.moveDownPositionA, GESTURES.Touch.moveDownPositionB); + } + else if (event.touchAction == TOUCH_ACTION_UP) + { + GESTURES.Pinch.distance = 0.0f; + GESTURES.Pinch.angle = 0.0f; + GESTURES.Pinch.vector = (Vector2){ 0.0f, 0.0f }; + GESTURES.Touch.pointCount = 0; + + GESTURES.current = GESTURE_NONE; + } + } + else if (GESTURES.Touch.pointCount > 2) // More than two touch points + { + // TODO: Process gesture events for more than two points + } +} + +// Update gestures detected (must be called every frame) +void UpdateGestures(void) +{ + // NOTE: Gestures are processed through system callbacks on touch events + + // Detect GESTURE_HOLD + if (((GESTURES.current == GESTURE_TAP) || (GESTURES.current == GESTURE_DOUBLETAP)) && (GESTURES.Touch.pointCount < 2)) + { + GESTURES.current = GESTURE_HOLD; + GESTURES.Hold.timeDuration = rgGetCurrentTime(); + } + + if (((rgGetCurrentTime() - GESTURES.Touch.eventTime) > TAP_TIMEOUT) && (GESTURES.current == GESTURE_DRAG) && (GESTURES.Touch.pointCount < 2)) + { + GESTURES.current = GESTURE_HOLD; + GESTURES.Hold.timeDuration = rgGetCurrentTime(); + GESTURES.Hold.resetRequired = true; + } + + // Detect GESTURE_NONE + if ((GESTURES.current == GESTURE_SWIPE_RIGHT) || (GESTURES.current == GESTURE_SWIPE_UP) || (GESTURES.current == GESTURE_SWIPE_LEFT) || (GESTURES.current == GESTURE_SWIPE_DOWN)) + { + GESTURES.current = GESTURE_NONE; + } +} + +// Get latest detected gesture +int GetGestureDetected(void) +{ + // Get current gesture only if enabled + return (GESTURES.enabledFlags & GESTURES.current); +} + +// Hold time measured in ms +float GetGestureHoldDuration(void) +{ + // NOTE: time is calculated on current gesture HOLD + + double time = 0.0; + + if (GESTURES.current == GESTURE_HOLD) time = rgGetCurrentTime() - GESTURES.Hold.timeDuration; + + return (float)time; +} + +// Get drag vector (between initial touch point to current) +Vector2 GetGestureDragVector(void) +{ + // NOTE: drag vector is calculated on one touch points TOUCH_ACTION_MOVE + + return GESTURES.Drag.vector; +} + +// Get drag angle +// NOTE: Angle in degrees, horizontal-right is 0, counterclock-wise +float GetGestureDragAngle(void) +{ + // NOTE: drag angle is calculated on one touch points TOUCH_ACTION_UP + + return GESTURES.Drag.angle; +} + +// Get distance between two pinch points +Vector2 GetGesturePinchVector(void) +{ + // NOTE: Pinch distance is calculated on two touch points TOUCH_ACTION_MOVE + + return GESTURES.Pinch.vector; +} + +// Get angle beween two pinch points +// NOTE: Angle in degrees, horizontal-right is 0, counterclock-wise +float GetGesturePinchAngle(void) +{ + // NOTE: pinch angle is calculated on two touch points TOUCH_ACTION_MOVE + + return GESTURES.Pinch.angle; +} + +//---------------------------------------------------------------------------------- +// Module specific Functions Definition +//---------------------------------------------------------------------------------- +// Get angle from two-points vector with X-axis +static float rgVector2Angle(Vector2 v1, Vector2 v2) +{ + float angle = atan2f(v2.y - v1.y, v2.x - v1.x)*(180.0f/PI); + + if (angle < 0) angle += 360.0f; + + return angle; +} + +// Calculate distance between two Vector2 +static float rgVector2Distance(Vector2 v1, Vector2 v2) +{ + float result; + + float dx = v2.x - v1.x; + float dy = v2.y - v1.y; + + result = (float)sqrt(dx*dx + dy*dy); + + return result; +} + +// Time measure returned are milliseconds +static double rgGetCurrentTime(void) +{ + double time = 0; + +#if defined(_WIN32) + unsigned long long int clockFrequency, currentTime; + + QueryPerformanceFrequency(&clockFrequency); // BE CAREFUL: Costly operation! + QueryPerformanceCounter(¤tTime); + + time = (double)currentTime/clockFrequency*1000.0f; // Time in miliseconds +#endif + +#if defined(__linux__) + // NOTE: Only for Linux-based systems + struct timespec now; + clock_gettime(CLOCK_MONOTONIC, &now); + unsigned long long int nowTime = (unsigned long long int)now.tv_sec*1000000000LLU + (unsigned long long int)now.tv_nsec; // Time in nanoseconds + + time = ((double)nowTime/1000000.0); // Time in miliseconds +#endif + +#if defined(__APPLE__) + //#define CLOCK_REALTIME CALENDAR_CLOCK // returns UTC time since 1970-01-01 + //#define CLOCK_MONOTONIC SYSTEM_CLOCK // returns the time since boot time + + clock_serv_t cclock; + mach_timespec_t now; + host_get_clock_service(mach_host_self(), SYSTEM_CLOCK, &cclock); + + // NOTE: OS X does not have clock_gettime(), using clock_get_time() + clock_get_time(cclock, &now); + mach_port_deallocate(mach_task_self(), cclock); + unsigned long long int nowTime = (unsigned long long int)now.tv_sec*1000000000LLU + (unsigned long long int)now.tv_nsec; // Time in nanoseconds + + time = ((double)nowTime/1000000.0); // Time in miliseconds +#endif + + return time; +} + +#endif // GESTURES_IMPLEMENTATION diff --git a/include/rlgl.h b/include/rlgl.h new file mode 100644 index 0000000..4f9d8fa --- /dev/null +++ b/include/rlgl.h @@ -0,0 +1,4677 @@ +/********************************************************************************************** +* +* rlgl v4.0 - A multi-OpenGL abstraction layer with an immediate-mode style API +* +* An abstraction layer for multiple OpenGL versions (1.1, 2.1, 3.3 Core, 4.3 Core, ES 2.0) +* that provides a pseudo-OpenGL 1.1 immediate-mode style API (rlVertex, rlTranslate, rlRotate...) +* +* When chosing an OpenGL backend different than OpenGL 1.1, some internal buffer are +* initialized on rlglInit() to accumulate vertex data. +* +* When an internal state change is required all the stored vertex data is renderer in batch, +* additioanlly, rlDrawRenderBatchActive() could be called to force flushing of the batch. +* +* Some additional resources are also loaded for convenience, here the complete list: +* - Default batch (RLGL.defaultBatch): RenderBatch system to accumulate vertex data +* - Default texture (RLGL.defaultTextureId): 1x1 white pixel R8G8B8A8 +* - Default shader (RLGL.State.defaultShaderId, RLGL.State.defaultShaderLocs) +* +* Internal buffer (and additional resources) must be manually unloaded calling rlglClose(). +* +* +* CONFIGURATION: +* +* #define GRAPHICS_API_OPENGL_11 +* #define GRAPHICS_API_OPENGL_21 +* #define GRAPHICS_API_OPENGL_33 +* #define GRAPHICS_API_OPENGL_43 +* #define GRAPHICS_API_OPENGL_ES2 +* Use selected OpenGL graphics backend, should be supported by platform +* Those preprocessor defines are only used on rlgl module, if OpenGL version is +* required by any other module, use rlGetVersion() to check it +* +* #define RLGL_IMPLEMENTATION +* Generates the implementation of the library into the included file. +* If not defined, the library is in header only mode and can be included in other headers +* or source files without problems. But only ONE file should hold the implementation. +* +* #define RLGL_RENDER_TEXTURES_HINT +* Enable framebuffer objects (fbo) support (enabled by default) +* Some GPUs could not support them despite the OpenGL version +* +* #define RLGL_SHOW_GL_DETAILS_INFO +* Show OpenGL extensions and capabilities detailed logs on init +* +* #define RLGL_ENABLE_OPENGL_DEBUG_CONTEXT +* Enable debug context (only available on OpenGL 4.3) +* +* rlgl capabilities could be customized just defining some internal +* values before library inclusion (default values listed): +* +* #define RL_DEFAULT_BATCH_BUFFER_ELEMENTS 8192 // Default internal render batch elements limits +* #define RL_DEFAULT_BATCH_BUFFERS 1 // Default number of batch buffers (multi-buffering) +* #define RL_DEFAULT_BATCH_DRAWCALLS 256 // Default number of batch draw calls (by state changes: mode, texture) +* #define RL_DEFAULT_BATCH_MAX_TEXTURE_UNITS 4 // Maximum number of textures units that can be activated on batch drawing (SetShaderValueTexture()) +* +* #define RL_MAX_MATRIX_STACK_SIZE 32 // Maximum size of internal Matrix stack +* #define RL_MAX_SHADER_LOCATIONS 32 // Maximum number of shader locations supported +* #define RL_CULL_DISTANCE_NEAR 0.01 // Default projection matrix near cull distance +* #define RL_CULL_DISTANCE_FAR 1000.0 // Default projection matrix far cull distance +* +* When loading a shader, the following vertex attribute and uniform +* location names are tried to be set automatically: +* +* #define RL_DEFAULT_SHADER_ATTRIB_NAME_POSITION "vertexPosition" // Binded by default to shader location: 0 +* #define RL_DEFAULT_SHADER_ATTRIB_NAME_TEXCOORD "vertexTexCoord" // Binded by default to shader location: 1 +* #define RL_DEFAULT_SHADER_ATTRIB_NAME_NORMAL "vertexNormal" // Binded by default to shader location: 2 +* #define RL_DEFAULT_SHADER_ATTRIB_NAME_COLOR "vertexColor" // Binded by default to shader location: 3 +* #define RL_DEFAULT_SHADER_ATTRIB_NAME_TANGENT "vertexTangent" // Binded by default to shader location: 4 +* #define RL_DEFAULT_SHADER_ATTRIB_NAME_TEXCOORD2 "vertexTexCoord2" // Binded by default to shader location: 5 +* #define RL_DEFAULT_SHADER_UNIFORM_NAME_MVP "mvp" // model-view-projection matrix +* #define RL_DEFAULT_SHADER_UNIFORM_NAME_VIEW "matView" // view matrix +* #define RL_DEFAULT_SHADER_UNIFORM_NAME_PROJECTION "matProjection" // projection matrix +* #define RL_DEFAULT_SHADER_UNIFORM_NAME_MODEL "matModel" // model matrix +* #define RL_DEFAULT_SHADER_UNIFORM_NAME_NORMAL "matNormal" // normal matrix (transpose(inverse(matModelView)) +* #define RL_DEFAULT_SHADER_UNIFORM_NAME_COLOR "colDiffuse" // color diffuse (base tint color, multiplied by texture color) +* #define RL_DEFAULT_SHADER_SAMPLER2D_NAME_TEXTURE0 "texture0" // texture0 (texture slot active 0) +* #define RL_DEFAULT_SHADER_SAMPLER2D_NAME_TEXTURE1 "texture1" // texture1 (texture slot active 1) +* #define RL_DEFAULT_SHADER_SAMPLER2D_NAME_TEXTURE2 "texture2" // texture2 (texture slot active 2) +* +* DEPENDENCIES: +* +* - OpenGL libraries (depending on platform and OpenGL version selected) +* - GLAD OpenGL extensions loading library (only for OpenGL 3.3 Core, 4.3 Core) +* +* +* LICENSE: zlib/libpng +* +* Copyright (c) 2014-2021 Ramon Santamaria (@raysan5) +* +* This software is provided "as-is", without any express or implied warranty. In no event +* will the authors be held liable for any damages arising from the use of this software. +* +* Permission is granted to anyone to use this software for any purpose, including commercial +* applications, and to alter it and redistribute it freely, subject to the following restrictions: +* +* 1. The origin of this software must not be misrepresented; you must not claim that you +* wrote the original software. If you use this software in a product, an acknowledgment +* in the product documentation would be appreciated but is not required. +* +* 2. Altered source versions must be plainly marked as such, and must not be misrepresented +* as being the original software. +* +* 3. This notice may not be removed or altered from any source distribution. +* +**********************************************************************************************/ + +#ifndef RLGL_H +#define RLGL_H + +#define RLGL_VERSION "4.0" + +// Function specifiers in case library is build/used as a shared library (Windows) +// NOTE: Microsoft specifiers to tell compiler that symbols are imported/exported from a .dll +#if defined(_WIN32) + #if defined(BUILD_LIBTYPE_SHARED) + #define RLAPI __declspec(dllexport) // We are building the library as a Win32 shared library (.dll) + #elif defined(USE_LIBTYPE_SHARED) + #define RLAPI __declspec(dllimport) // We are using the library as a Win32 shared library (.dll) + #endif +#endif + +// Function specifiers definition +#ifndef RLAPI + #define RLAPI // Functions defined as 'extern' by default (implicit specifiers) +#endif + +// Support TRACELOG macros +#ifndef TRACELOG + #define TRACELOG(level, ...) (void)0 + #define TRACELOGD(...) (void)0 +#endif + +// Allow custom memory allocators +#ifndef RL_MALLOC + #define RL_MALLOC(sz) malloc(sz) +#endif +#ifndef RL_CALLOC + #define RL_CALLOC(n,sz) calloc(n,sz) +#endif +#ifndef RL_REALLOC + #define RL_REALLOC(n,sz) realloc(n,sz) +#endif +#ifndef RL_FREE + #define RL_FREE(p) free(p) +#endif + +// Security check in case no GRAPHICS_API_OPENGL_* defined +#if !defined(GRAPHICS_API_OPENGL_11) && \ + !defined(GRAPHICS_API_OPENGL_21) && \ + !defined(GRAPHICS_API_OPENGL_33) && \ + !defined(GRAPHICS_API_OPENGL_43) && \ + !defined(GRAPHICS_API_OPENGL_ES2) + #define GRAPHICS_API_OPENGL_33 +#endif + +// Security check in case multiple GRAPHICS_API_OPENGL_* defined +#if defined(GRAPHICS_API_OPENGL_11) + #if defined(GRAPHICS_API_OPENGL_21) + #undef GRAPHICS_API_OPENGL_21 + #endif + #if defined(GRAPHICS_API_OPENGL_33) + #undef GRAPHICS_API_OPENGL_33 + #endif + #if defined(GRAPHICS_API_OPENGL_43) + #undef GRAPHICS_API_OPENGL_43 + #endif + #if defined(GRAPHICS_API_OPENGL_ES2) + #undef GRAPHICS_API_OPENGL_ES2 + #endif +#endif + +// OpenGL 2.1 uses most of OpenGL 3.3 Core functionality +// WARNING: Specific parts are checked with #if defines +#if defined(GRAPHICS_API_OPENGL_21) + #define GRAPHICS_API_OPENGL_33 +#endif + +// OpenGL 4.3 uses OpenGL 3.3 Core functionality +#if defined(GRAPHICS_API_OPENGL_43) + #define GRAPHICS_API_OPENGL_33 +#endif + +// Support framebuffer objects by default +// NOTE: Some driver implementation do not support it, despite they should +#define RLGL_RENDER_TEXTURES_HINT + +//---------------------------------------------------------------------------------- +// Defines and Macros +//---------------------------------------------------------------------------------- + +// Default internal render batch elements limits +#ifndef RL_DEFAULT_BATCH_BUFFER_ELEMENTS + #if defined(GRAPHICS_API_OPENGL_11) || defined(GRAPHICS_API_OPENGL_33) + // This is the maximum amount of elements (quads) per batch + // NOTE: Be careful with text, every letter maps to a quad + #define RL_DEFAULT_BATCH_BUFFER_ELEMENTS 8192 + #endif + #if defined(GRAPHICS_API_OPENGL_ES2) + // We reduce memory sizes for embedded systems (RPI and HTML5) + // NOTE: On HTML5 (emscripten) this is allocated on heap, + // by default it's only 16MB!...just take care... + #define RL_DEFAULT_BATCH_BUFFER_ELEMENTS 2048 + #endif +#endif +#ifndef RL_DEFAULT_BATCH_BUFFERS + #define RL_DEFAULT_BATCH_BUFFERS 1 // Default number of batch buffers (multi-buffering) +#endif +#ifndef RL_DEFAULT_BATCH_DRAWCALLS + #define RL_DEFAULT_BATCH_DRAWCALLS 256 // Default number of batch draw calls (by state changes: mode, texture) +#endif +#ifndef RL_DEFAULT_BATCH_MAX_TEXTURE_UNITS + #define RL_DEFAULT_BATCH_MAX_TEXTURE_UNITS 4 // Maximum number of textures units that can be activated on batch drawing (SetShaderValueTexture()) +#endif + +// Internal Matrix stack +#ifndef RL_MAX_MATRIX_STACK_SIZE + #define RL_MAX_MATRIX_STACK_SIZE 32 // Maximum size of Matrix stack +#endif + +// Shader limits +#ifndef RL_MAX_SHADER_LOCATIONS + #define RL_MAX_SHADER_LOCATIONS 32 // Maximum number of shader locations supported +#endif + +// Projection matrix culling +#ifndef RL_CULL_DISTANCE_NEAR + #define RL_CULL_DISTANCE_NEAR 0.01 // Default near cull distance +#endif +#ifndef RL_CULL_DISTANCE_FAR + #define RL_CULL_DISTANCE_FAR 1000.0 // Default far cull distance +#endif + +// Texture parameters (equivalent to OpenGL defines) +#define RL_TEXTURE_WRAP_S 0x2802 // GL_TEXTURE_WRAP_S +#define RL_TEXTURE_WRAP_T 0x2803 // GL_TEXTURE_WRAP_T +#define RL_TEXTURE_MAG_FILTER 0x2800 // GL_TEXTURE_MAG_FILTER +#define RL_TEXTURE_MIN_FILTER 0x2801 // GL_TEXTURE_MIN_FILTER + +#define RL_TEXTURE_FILTER_NEAREST 0x2600 // GL_NEAREST +#define RL_TEXTURE_FILTER_LINEAR 0x2601 // GL_LINEAR +#define RL_TEXTURE_FILTER_MIP_NEAREST 0x2700 // GL_NEAREST_MIPMAP_NEAREST +#define RL_TEXTURE_FILTER_NEAREST_MIP_LINEAR 0x2702 // GL_NEAREST_MIPMAP_LINEAR +#define RL_TEXTURE_FILTER_LINEAR_MIP_NEAREST 0x2701 // GL_LINEAR_MIPMAP_NEAREST +#define RL_TEXTURE_FILTER_MIP_LINEAR 0x2703 // GL_LINEAR_MIPMAP_LINEAR +#define RL_TEXTURE_FILTER_ANISOTROPIC 0x3000 // Anisotropic filter (custom identifier) + +#define RL_TEXTURE_WRAP_REPEAT 0x2901 // GL_REPEAT +#define RL_TEXTURE_WRAP_CLAMP 0x812F // GL_CLAMP_TO_EDGE +#define RL_TEXTURE_WRAP_MIRROR_REPEAT 0x8370 // GL_MIRRORED_REPEAT +#define RL_TEXTURE_WRAP_MIRROR_CLAMP 0x8742 // GL_MIRROR_CLAMP_EXT + +// Matrix modes (equivalent to OpenGL) +#define RL_MODELVIEW 0x1700 // GL_MODELVIEW +#define RL_PROJECTION 0x1701 // GL_PROJECTION +#define RL_TEXTURE 0x1702 // GL_TEXTURE + +// Primitive assembly draw modes +#define RL_LINES 0x0001 // GL_LINES +#define RL_TRIANGLES 0x0004 // GL_TRIANGLES +#define RL_QUADS 0x0007 // GL_QUADS + +// GL equivalent data types +#define RL_UNSIGNED_BYTE 0x1401 // GL_UNSIGNED_BYTE +#define RL_FLOAT 0x1406 // GL_FLOAT + +// Buffer usage hint +#define RL_STREAM_DRAW 0x88E0 // GL_STREAM_DRAW +#define RL_STREAM_READ 0x88E1 // GL_STREAM_READ +#define RL_STREAM_COPY 0x88E2 // GL_STREAM_COPY +#define RL_STATIC_DRAW 0x88E4 // GL_STATIC_DRAW +#define RL_STATIC_READ 0x88E5 // GL_STATIC_READ +#define RL_STATIC_COPY 0x88E6 // GL_STATIC_COPY +#define RL_DYNAMIC_DRAW 0x88E8 // GL_DYNAMIC_DRAW +#define RL_DYNAMIC_READ 0x88E9 // GL_DYNAMIC_READ +#define RL_DYNAMIC_COPY 0x88EA // GL_DYNAMIC_COPY + +// GL Shader type +#define RL_FRAGMENT_SHADER 0x8B30 // GL_FRAGMENT_SHADER +#define RL_VERTEX_SHADER 0x8B31 // GL_VERTEX_SHADER +#define RL_COMPUTE_SHADER 0x91B9 // GL_COMPUTE_SHADER + +//---------------------------------------------------------------------------------- +// Types and Structures Definition +//---------------------------------------------------------------------------------- +typedef enum { + OPENGL_11 = 1, + OPENGL_21, + OPENGL_33, + OPENGL_43, + OPENGL_ES_20 +} rlGlVersion; + +typedef enum { + RL_ATTACHMENT_COLOR_CHANNEL0 = 0, + RL_ATTACHMENT_COLOR_CHANNEL1, + RL_ATTACHMENT_COLOR_CHANNEL2, + RL_ATTACHMENT_COLOR_CHANNEL3, + RL_ATTACHMENT_COLOR_CHANNEL4, + RL_ATTACHMENT_COLOR_CHANNEL5, + RL_ATTACHMENT_COLOR_CHANNEL6, + RL_ATTACHMENT_COLOR_CHANNEL7, + RL_ATTACHMENT_DEPTH = 100, + RL_ATTACHMENT_STENCIL = 200, +} rlFramebufferAttachType; + +typedef enum { + RL_ATTACHMENT_CUBEMAP_POSITIVE_X = 0, + RL_ATTACHMENT_CUBEMAP_NEGATIVE_X, + RL_ATTACHMENT_CUBEMAP_POSITIVE_Y, + RL_ATTACHMENT_CUBEMAP_NEGATIVE_Y, + RL_ATTACHMENT_CUBEMAP_POSITIVE_Z, + RL_ATTACHMENT_CUBEMAP_NEGATIVE_Z, + RL_ATTACHMENT_TEXTURE2D = 100, + RL_ATTACHMENT_RENDERBUFFER = 200, +} rlFramebufferAttachTextureType; + +// Dynamic vertex buffers (position + texcoords + colors + indices arrays) +typedef struct rlVertexBuffer { + int elementCount; // Number of elements in the buffer (QUADS) + + float *vertices; // Vertex position (XYZ - 3 components per vertex) (shader-location = 0) + float *texcoords; // Vertex texture coordinates (UV - 2 components per vertex) (shader-location = 1) + unsigned char *colors; // Vertex colors (RGBA - 4 components per vertex) (shader-location = 3) +#if defined(GRAPHICS_API_OPENGL_11) || defined(GRAPHICS_API_OPENGL_33) + unsigned int *indices; // Vertex indices (in case vertex data comes indexed) (6 indices per quad) +#endif +#if defined(GRAPHICS_API_OPENGL_ES2) + unsigned short *indices; // Vertex indices (in case vertex data comes indexed) (6 indices per quad) +#endif + unsigned int vaoId; // OpenGL Vertex Array Object id + unsigned int vboId[4]; // OpenGL Vertex Buffer Objects id (4 types of vertex data) +} rlVertexBuffer; + +// Draw call type +// NOTE: Only texture changes register a new draw, other state-change-related elements are not +// used at this moment (vaoId, shaderId, matrices), raylib just forces a batch draw call if any +// of those state-change happens (this is done in core module) +typedef struct rlDrawCall { + int mode; // Drawing mode: LINES, TRIANGLES, QUADS + int vertexCount; // Number of vertex of the draw + int vertexAlignment; // Number of vertex required for index alignment (LINES, TRIANGLES) + //unsigned int vaoId; // Vertex array id to be used on the draw -> Using RLGL.currentBatch->vertexBuffer.vaoId + //unsigned int shaderId; // Shader id to be used on the draw -> Using RLGL.currentShaderId + unsigned int textureId; // Texture id to be used on the draw -> Use to create new draw call if changes + + //Matrix projection; // Projection matrix for this draw -> Using RLGL.projection by default + //Matrix modelview; // Modelview matrix for this draw -> Using RLGL.modelview by default +} rlDrawCall; + +// rlRenderBatch type +typedef struct rlRenderBatch { + int bufferCount; // Number of vertex buffers (multi-buffering support) + int currentBuffer; // Current buffer tracking in case of multi-buffering + rlVertexBuffer *vertexBuffer; // Dynamic buffer(s) for vertex data + + rlDrawCall *draws; // Draw calls array, depends on textureId + int drawCounter; // Draw calls counter + float currentDepth; // Current depth value for next draw +} rlRenderBatch; + +#if defined(__STDC__) && __STDC_VERSION__ >= 199901L + #include +#elif !defined(__cplusplus) && !defined(bool) && !defined(RL_BOOL_TYPE) + // Boolean type + typedef enum bool { false, true } bool; +#endif + +#if !defined(RL_MATRIX_TYPE) +// Matrix, 4x4 components, column major, OpenGL style, right handed +typedef struct Matrix { + float m0, m4, m8, m12; // Matrix first row (4 components) + float m1, m5, m9, m13; // Matrix second row (4 components) + float m2, m6, m10, m14; // Matrix third row (4 components) + float m3, m7, m11, m15; // Matrix fourth row (4 components) +} Matrix; +#define RL_MATRIX_TYPE +#endif + +// Trace log level +// NOTE: Organized by priority level +typedef enum { + RL_LOG_ALL = 0, // Display all logs + RL_LOG_TRACE, // Trace logging, intended for internal use only + RL_LOG_DEBUG, // Debug logging, used for internal debugging, it should be disabled on release builds + RL_LOG_INFO, // Info logging, used for program execution info + RL_LOG_WARNING, // Warning logging, used on recoverable failures + RL_LOG_ERROR, // Error logging, used on unrecoverable failures + RL_LOG_FATAL, // Fatal logging, used to abort program: exit(EXIT_FAILURE) + RL_LOG_NONE // Disable logging +} rlTraceLogLevel; + +// Texture formats (support depends on OpenGL version) +typedef enum { + RL_PIXELFORMAT_UNCOMPRESSED_GRAYSCALE = 1, // 8 bit per pixel (no alpha) + RL_PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA, // 8*2 bpp (2 channels) + RL_PIXELFORMAT_UNCOMPRESSED_R5G6B5, // 16 bpp + RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8, // 24 bpp + RL_PIXELFORMAT_UNCOMPRESSED_R5G5B5A1, // 16 bpp (1 bit alpha) + RL_PIXELFORMAT_UNCOMPRESSED_R4G4B4A4, // 16 bpp (4 bit alpha) + RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8A8, // 32 bpp + RL_PIXELFORMAT_UNCOMPRESSED_R32, // 32 bpp (1 channel - float) + RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32, // 32*3 bpp (3 channels - float) + RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32A32, // 32*4 bpp (4 channels - float) + RL_PIXELFORMAT_COMPRESSED_DXT1_RGB, // 4 bpp (no alpha) + RL_PIXELFORMAT_COMPRESSED_DXT1_RGBA, // 4 bpp (1 bit alpha) + RL_PIXELFORMAT_COMPRESSED_DXT3_RGBA, // 8 bpp + RL_PIXELFORMAT_COMPRESSED_DXT5_RGBA, // 8 bpp + RL_PIXELFORMAT_COMPRESSED_ETC1_RGB, // 4 bpp + RL_PIXELFORMAT_COMPRESSED_ETC2_RGB, // 4 bpp + RL_PIXELFORMAT_COMPRESSED_ETC2_EAC_RGBA, // 8 bpp + RL_PIXELFORMAT_COMPRESSED_PVRT_RGB, // 4 bpp + RL_PIXELFORMAT_COMPRESSED_PVRT_RGBA, // 4 bpp + RL_PIXELFORMAT_COMPRESSED_ASTC_4x4_RGBA, // 8 bpp + RL_PIXELFORMAT_COMPRESSED_ASTC_8x8_RGBA // 2 bpp +} rlPixelFormat; + +// Texture parameters: filter mode +// NOTE 1: Filtering considers mipmaps if available in the texture +// NOTE 2: Filter is accordingly set for minification and magnification +typedef enum { + RL_TEXTURE_FILTER_POINT = 0, // No filter, just pixel aproximation + RL_TEXTURE_FILTER_BILINEAR, // Linear filtering + RL_TEXTURE_FILTER_TRILINEAR, // Trilinear filtering (linear with mipmaps) + RL_TEXTURE_FILTER_ANISOTROPIC_4X, // Anisotropic filtering 4x + RL_TEXTURE_FILTER_ANISOTROPIC_8X, // Anisotropic filtering 8x + RL_TEXTURE_FILTER_ANISOTROPIC_16X, // Anisotropic filtering 16x +} rlTextureFilter; + +// Color blending modes (pre-defined) +typedef enum { + RL_BLEND_ALPHA = 0, // Blend textures considering alpha (default) + RL_BLEND_ADDITIVE, // Blend textures adding colors + RL_BLEND_MULTIPLIED, // Blend textures multiplying colors + RL_BLEND_ADD_COLORS, // Blend textures adding colors (alternative) + RL_BLEND_SUBTRACT_COLORS, // Blend textures subtracting colors (alternative) + RL_BLEND_CUSTOM // Belnd textures using custom src/dst factors (use SetBlendModeCustom()) +} rlBlendMode; + +// Shader location point type +typedef enum { + RL_SHADER_LOC_VERTEX_POSITION = 0, // Shader location: vertex attribute: position + RL_SHADER_LOC_VERTEX_TEXCOORD01, // Shader location: vertex attribute: texcoord01 + RL_SHADER_LOC_VERTEX_TEXCOORD02, // Shader location: vertex attribute: texcoord02 + RL_SHADER_LOC_VERTEX_NORMAL, // Shader location: vertex attribute: normal + RL_SHADER_LOC_VERTEX_TANGENT, // Shader location: vertex attribute: tangent + RL_SHADER_LOC_VERTEX_COLOR, // Shader location: vertex attribute: color + RL_SHADER_LOC_MATRIX_MVP, // Shader location: matrix uniform: model-view-projection + RL_SHADER_LOC_MATRIX_VIEW, // Shader location: matrix uniform: view (camera transform) + RL_SHADER_LOC_MATRIX_PROJECTION, // Shader location: matrix uniform: projection + RL_SHADER_LOC_MATRIX_MODEL, // Shader location: matrix uniform: model (transform) + RL_SHADER_LOC_MATRIX_NORMAL, // Shader location: matrix uniform: normal + RL_SHADER_LOC_VECTOR_VIEW, // Shader location: vector uniform: view + RL_SHADER_LOC_COLOR_DIFFUSE, // Shader location: vector uniform: diffuse color + RL_SHADER_LOC_COLOR_SPECULAR, // Shader location: vector uniform: specular color + RL_SHADER_LOC_COLOR_AMBIENT, // Shader location: vector uniform: ambient color + RL_SHADER_LOC_MAP_ALBEDO, // Shader location: sampler2d texture: albedo (same as: RL_SHADER_LOC_MAP_DIFFUSE) + RL_SHADER_LOC_MAP_METALNESS, // Shader location: sampler2d texture: metalness (same as: RL_SHADER_LOC_MAP_SPECULAR) + RL_SHADER_LOC_MAP_NORMAL, // Shader location: sampler2d texture: normal + RL_SHADER_LOC_MAP_ROUGHNESS, // Shader location: sampler2d texture: roughness + RL_SHADER_LOC_MAP_OCCLUSION, // Shader location: sampler2d texture: occlusion + RL_SHADER_LOC_MAP_EMISSION, // Shader location: sampler2d texture: emission + RL_SHADER_LOC_MAP_HEIGHT, // Shader location: sampler2d texture: height + RL_SHADER_LOC_MAP_CUBEMAP, // Shader location: samplerCube texture: cubemap + RL_SHADER_LOC_MAP_IRRADIANCE, // Shader location: samplerCube texture: irradiance + RL_SHADER_LOC_MAP_PREFILTER, // Shader location: samplerCube texture: prefilter + RL_SHADER_LOC_MAP_BRDF // Shader location: sampler2d texture: brdf +} rlShaderLocationIndex; + +#define RL_SHADER_LOC_MAP_DIFFUSE RL_SHADER_LOC_MAP_ALBEDO +#define RL_SHADER_LOC_MAP_SPECULAR RL_SHADER_LOC_MAP_METALNESS + +// Shader uniform data type +typedef enum { + RL_SHADER_UNIFORM_FLOAT = 0, // Shader uniform type: float + RL_SHADER_UNIFORM_VEC2, // Shader uniform type: vec2 (2 float) + RL_SHADER_UNIFORM_VEC3, // Shader uniform type: vec3 (3 float) + RL_SHADER_UNIFORM_VEC4, // Shader uniform type: vec4 (4 float) + RL_SHADER_UNIFORM_INT, // Shader uniform type: int + RL_SHADER_UNIFORM_IVEC2, // Shader uniform type: ivec2 (2 int) + RL_SHADER_UNIFORM_IVEC3, // Shader uniform type: ivec3 (3 int) + RL_SHADER_UNIFORM_IVEC4, // Shader uniform type: ivec4 (4 int) + RL_SHADER_UNIFORM_SAMPLER2D // Shader uniform type: sampler2d +} rlShaderUniformDataType; + +// Shader attribute data types +typedef enum { + RL_SHADER_ATTRIB_FLOAT = 0, // Shader attribute type: float + RL_SHADER_ATTRIB_VEC2, // Shader attribute type: vec2 (2 float) + RL_SHADER_ATTRIB_VEC3, // Shader attribute type: vec3 (3 float) + RL_SHADER_ATTRIB_VEC4 // Shader attribute type: vec4 (4 float) +} rlShaderAttributeDataType; + +//------------------------------------------------------------------------------------ +// Functions Declaration - Matrix operations +//------------------------------------------------------------------------------------ + +#if defined(__cplusplus) +extern "C" { // Prevents name mangling of functions +#endif + +RLAPI void rlMatrixMode(int mode); // Choose the current matrix to be transformed +RLAPI void rlPushMatrix(void); // Push the current matrix to stack +RLAPI void rlPopMatrix(void); // Pop lattest inserted matrix from stack +RLAPI void rlLoadIdentity(void); // Reset current matrix to identity matrix +RLAPI void rlTranslatef(float x, float y, float z); // Multiply the current matrix by a translation matrix +RLAPI void rlRotatef(float angle, float x, float y, float z); // Multiply the current matrix by a rotation matrix +RLAPI void rlScalef(float x, float y, float z); // Multiply the current matrix by a scaling matrix +RLAPI void rlMultMatrixf(float *matf); // Multiply the current matrix by another matrix +RLAPI void rlFrustum(double left, double right, double bottom, double top, double znear, double zfar); +RLAPI void rlOrtho(double left, double right, double bottom, double top, double znear, double zfar); +RLAPI void rlViewport(int x, int y, int width, int height); // Set the viewport area + +//------------------------------------------------------------------------------------ +// Functions Declaration - Vertex level operations +//------------------------------------------------------------------------------------ +RLAPI void rlBegin(int mode); // Initialize drawing mode (how to organize vertex) +RLAPI void rlEnd(void); // Finish vertex providing +RLAPI void rlVertex2i(int x, int y); // Define one vertex (position) - 2 int +RLAPI void rlVertex2f(float x, float y); // Define one vertex (position) - 2 float +RLAPI void rlVertex3f(float x, float y, float z); // Define one vertex (position) - 3 float +RLAPI void rlTexCoord2f(float x, float y); // Define one vertex (texture coordinate) - 2 float +RLAPI void rlNormal3f(float x, float y, float z); // Define one vertex (normal) - 3 float +RLAPI void rlColor4ub(unsigned char r, unsigned char g, unsigned char b, unsigned char a); // Define one vertex (color) - 4 byte +RLAPI void rlColor3f(float x, float y, float z); // Define one vertex (color) - 3 float +RLAPI void rlColor4f(float x, float y, float z, float w); // Define one vertex (color) - 4 float + +//------------------------------------------------------------------------------------ +// Functions Declaration - OpenGL style functions (common to 1.1, 3.3+, ES2) +// NOTE: This functions are used to completely abstract raylib code from OpenGL layer, +// some of them are direct wrappers over OpenGL calls, some others are custom +//------------------------------------------------------------------------------------ + +// Vertex buffers state +RLAPI bool rlEnableVertexArray(unsigned int vaoId); // Enable vertex array (VAO, if supported) +RLAPI void rlDisableVertexArray(void); // Disable vertex array (VAO, if supported) +RLAPI void rlEnableVertexBuffer(unsigned int id); // Enable vertex buffer (VBO) +RLAPI void rlDisableVertexBuffer(void); // Disable vertex buffer (VBO) +RLAPI void rlEnableVertexBufferElement(unsigned int id);// Enable vertex buffer element (VBO element) +RLAPI void rlDisableVertexBufferElement(void); // Disable vertex buffer element (VBO element) +RLAPI void rlEnableVertexAttribute(unsigned int index); // Enable vertex attribute index +RLAPI void rlDisableVertexAttribute(unsigned int index);// Disable vertex attribute index +#if defined(GRAPHICS_API_OPENGL_11) +RLAPI void rlEnableStatePointer(int vertexAttribType, void *buffer); // Enable attribute state pointer +RLAPI void rlDisableStatePointer(int vertexAttribType); // Disable attribute state pointer +#endif + +// Textures state +RLAPI void rlActiveTextureSlot(int slot); // Select and active a texture slot +RLAPI void rlEnableTexture(unsigned int id); // Enable texture +RLAPI void rlDisableTexture(void); // Disable texture +RLAPI void rlEnableTextureCubemap(unsigned int id); // Enable texture cubemap +RLAPI void rlDisableTextureCubemap(void); // Disable texture cubemap +RLAPI void rlTextureParameters(unsigned int id, int param, int value); // Set texture parameters (filter, wrap) + +// Shader state +RLAPI void rlEnableShader(unsigned int id); // Enable shader program +RLAPI void rlDisableShader(void); // Disable shader program + +// Framebuffer state +RLAPI void rlEnableFramebuffer(unsigned int id); // Enable render texture (fbo) +RLAPI void rlDisableFramebuffer(void); // Disable render texture (fbo), return to default framebuffer +RLAPI void rlActiveDrawBuffers(int count); // Activate multiple draw color buffers + +// General render state +RLAPI void rlEnableColorBlend(void); // Enable color blending +RLAPI void rlDisableColorBlend(void); // Disable color blending +RLAPI void rlEnableDepthTest(void); // Enable depth test +RLAPI void rlDisableDepthTest(void); // Disable depth test +RLAPI void rlEnableDepthMask(void); // Enable depth write +RLAPI void rlDisableDepthMask(void); // Disable depth write +RLAPI void rlEnableBackfaceCulling(void); // Enable backface culling +RLAPI void rlDisableBackfaceCulling(void); // Disable backface culling +RLAPI void rlEnableScissorTest(void); // Enable scissor test +RLAPI void rlDisableScissorTest(void); // Disable scissor test +RLAPI void rlScissor(int x, int y, int width, int height); // Scissor test +RLAPI void rlEnableWireMode(void); // Enable wire mode +RLAPI void rlDisableWireMode(void); // Disable wire mode +RLAPI void rlSetLineWidth(float width); // Set the line drawing width +RLAPI float rlGetLineWidth(void); // Get the line drawing width +RLAPI void rlEnableSmoothLines(void); // Enable line aliasing +RLAPI void rlDisableSmoothLines(void); // Disable line aliasing +RLAPI void rlEnableStereoRender(void); // Enable stereo rendering +RLAPI void rlDisableStereoRender(void); // Disable stereo rendering +RLAPI bool rlIsStereoRenderEnabled(void); // Check if stereo render is enabled + +RLAPI void rlClearColor(unsigned char r, unsigned char g, unsigned char b, unsigned char a); // Clear color buffer with color +RLAPI void rlClearScreenBuffers(void); // Clear used screen buffers (color and depth) +RLAPI void rlCheckErrors(void); // Check and log OpenGL error codes +RLAPI void rlSetBlendMode(int mode); // Set blending mode +RLAPI void rlSetBlendFactors(int glSrcFactor, int glDstFactor, int glEquation); // Set blending mode factor and equation (using OpenGL factors) + +//------------------------------------------------------------------------------------ +// Functions Declaration - rlgl functionality +//------------------------------------------------------------------------------------ +// rlgl initialization functions +RLAPI void rlglInit(int width, int height); // Initialize rlgl (buffers, shaders, textures, states) +RLAPI void rlglClose(void); // De-inititialize rlgl (buffers, shaders, textures) +RLAPI void rlLoadExtensions(void *loader); // Load OpenGL extensions (loader function required) +RLAPI int rlGetVersion(void); // Get current OpenGL version +RLAPI int rlGetFramebufferWidth(void); // Get default framebuffer width +RLAPI int rlGetFramebufferHeight(void); // Get default framebuffer height + +RLAPI unsigned int rlGetTextureIdDefault(void); // Get default texture id +RLAPI unsigned int rlGetShaderIdDefault(void); // Get default shader id +RLAPI int *rlGetShaderLocsDefault(void); // Get default shader locations + +// Render batch management +// NOTE: rlgl provides a default render batch to behave like OpenGL 1.1 immediate mode +// but this render batch API is exposed in case of custom batches are required +RLAPI rlRenderBatch rlLoadRenderBatch(int numBuffers, int bufferElements); // Load a render batch system +RLAPI void rlUnloadRenderBatch(rlRenderBatch batch); // Unload render batch system +RLAPI void rlDrawRenderBatch(rlRenderBatch *batch); // Draw render batch data (Update->Draw->Reset) +RLAPI void rlSetRenderBatchActive(rlRenderBatch *batch); // Set the active render batch for rlgl (NULL for default internal) +RLAPI void rlDrawRenderBatchActive(void); // Update and draw internal render batch +RLAPI bool rlCheckRenderBatchLimit(int vCount); // Check internal buffer overflow for a given number of vertex +RLAPI void rlSetTexture(unsigned int id); // Set current texture for render batch and check buffers limits + +//------------------------------------------------------------------------------------------------------------------------ + +// Vertex buffers management +RLAPI unsigned int rlLoadVertexArray(void); // Load vertex array (vao) if supported +RLAPI unsigned int rlLoadVertexBuffer(void *buffer, int size, bool dynamic); // Load a vertex buffer attribute +RLAPI unsigned int rlLoadVertexBufferElement(void *buffer, int size, bool dynamic); // Load a new attributes element buffer +RLAPI void rlUpdateVertexBuffer(unsigned int bufferId, void *data, int dataSize, int offset); // Update GPU buffer with new data +RLAPI void rlUnloadVertexArray(unsigned int vaoId); +RLAPI void rlUnloadVertexBuffer(unsigned int vboId); +RLAPI void rlSetVertexAttribute(unsigned int index, int compSize, int type, bool normalized, int stride, void *pointer); +RLAPI void rlSetVertexAttributeDivisor(unsigned int index, int divisor); +RLAPI void rlSetVertexAttributeDefault(int locIndex, const void *value, int attribType, int count); // Set vertex attribute default value +RLAPI void rlDrawVertexArray(int offset, int count); +RLAPI void rlDrawVertexArrayElements(int offset, int count, void *buffer); +RLAPI void rlDrawVertexArrayInstanced(int offset, int count, int instances); +RLAPI void rlDrawVertexArrayElementsInstanced(int offset, int count, void *buffer, int instances); + +// Textures management +RLAPI unsigned int rlLoadTexture(void *data, int width, int height, int format, int mipmapCount); // Load texture in GPU +RLAPI unsigned int rlLoadTextureDepth(int width, int height, bool useRenderBuffer); // Load depth texture/renderbuffer (to be attached to fbo) +RLAPI unsigned int rlLoadTextureCubemap(void *data, int size, int format); // Load texture cubemap +RLAPI void rlUpdateTexture(unsigned int id, int offsetX, int offsetY, int width, int height, int format, const void *data); // Update GPU texture with new data +RLAPI void rlGetGlTextureFormats(int format, int *glInternalFormat, int *glFormat, int *glType); // Get OpenGL internal formats +RLAPI const char *rlGetPixelFormatName(unsigned int format); // Get name string for pixel format +RLAPI void rlUnloadTexture(unsigned int id); // Unload texture from GPU memory +RLAPI void rlGenTextureMipmaps(unsigned int id, int width, int height, int format, int *mipmaps); // Generate mipmap data for selected texture +RLAPI void *rlReadTexturePixels(unsigned int id, int width, int height, int format); // Read texture pixel data +RLAPI unsigned char *rlReadScreenPixels(int width, int height); // Read screen pixel data (color buffer) + +// Framebuffer management (fbo) +RLAPI unsigned int rlLoadFramebuffer(int width, int height); // Load an empty framebuffer +RLAPI void rlFramebufferAttach(unsigned int fboId, unsigned int texId, int attachType, int texType, int mipLevel); // Attach texture/renderbuffer to a framebuffer +RLAPI bool rlFramebufferComplete(unsigned int id); // Verify framebuffer is complete +RLAPI void rlUnloadFramebuffer(unsigned int id); // Delete framebuffer from GPU + +// Shaders management +RLAPI unsigned int rlLoadShaderCode(const char *vsCode, const char *fsCode); // Load shader from code strings +RLAPI unsigned int rlCompileShader(const char *shaderCode, int type); // Compile custom shader and return shader id (type: RL_VERTEX_SHADER, RL_FRAGMENT_SHADER, RL_COMPUTE_SHADER) +RLAPI unsigned int rlLoadShaderProgram(unsigned int vShaderId, unsigned int fShaderId); // Load custom shader program +RLAPI void rlUnloadShaderProgram(unsigned int id); // Unload shader program +RLAPI int rlGetLocationUniform(unsigned int shaderId, const char *uniformName); // Get shader location uniform +RLAPI int rlGetLocationAttrib(unsigned int shaderId, const char *attribName); // Get shader location attribute +RLAPI void rlSetUniform(int locIndex, const void *value, int uniformType, int count); // Set shader value uniform +RLAPI void rlSetUniformMatrix(int locIndex, Matrix mat); // Set shader value matrix +RLAPI void rlSetUniformSampler(int locIndex, unsigned int textureId); // Set shader value sampler +RLAPI void rlSetShader(unsigned int id, int *locs); // Set shader currently active (id and locations) + +// Compute shader management +RLAPI unsigned int rlLoadComputeShaderProgram(unsigned int shaderId); // Load compute shader program +RLAPI void rlComputeShaderDispatch(unsigned int groupX, unsigned int groupY, unsigned int groupZ); // Dispatch compute shader (equivalent to *draw* for graphics pilepine) + +// Shader buffer storage object management (ssbo) +RLAPI unsigned int rlLoadShaderBuffer(unsigned long long size, const void *data, int usageHint); // Load shader storage buffer object (SSBO) +RLAPI void rlUnloadShaderBuffer(unsigned int ssboId); // Unload shader storage buffer object (SSBO) +RLAPI void rlUpdateShaderBufferElements(unsigned int id, const void *data, unsigned long long dataSize, unsigned long long offset); // Update SSBO buffer data +RLAPI unsigned long long rlGetShaderBufferSize(unsigned int id); // Get SSBO buffer size +RLAPI void rlReadShaderBufferElements(unsigned int id, void *dest, unsigned long long count, unsigned long long offset); // Bind SSBO buffer +RLAPI void rlBindShaderBuffer(unsigned int id, unsigned int index); // Copy SSBO buffer data + +// Buffer management +RLAPI void rlCopyBuffersElements(unsigned int destId, unsigned int srcId, unsigned long long destOffset, unsigned long long srcOffset, unsigned long long count); // Copy SSBO buffer data +RLAPI void rlBindImageTexture(unsigned int id, unsigned int index, unsigned int format, int readonly); // Bind image texture + +// Matrix state management +RLAPI Matrix rlGetMatrixModelview(void); // Get internal modelview matrix +RLAPI Matrix rlGetMatrixProjection(void); // Get internal projection matrix +RLAPI Matrix rlGetMatrixTransform(void); // Get internal accumulated transform matrix +RLAPI Matrix rlGetMatrixProjectionStereo(int eye); // Get internal projection matrix for stereo render (selected eye) +RLAPI Matrix rlGetMatrixViewOffsetStereo(int eye); // Get internal view offset matrix for stereo render (selected eye) +RLAPI void rlSetMatrixProjection(Matrix proj); // Set a custom projection matrix (replaces internal projection matrix) +RLAPI void rlSetMatrixModelview(Matrix view); // Set a custom modelview matrix (replaces internal modelview matrix) +RLAPI void rlSetMatrixProjectionStereo(Matrix right, Matrix left); // Set eyes projection matrices for stereo rendering +RLAPI void rlSetMatrixViewOffsetStereo(Matrix right, Matrix left); // Set eyes view offsets matrices for stereo rendering + +// Quick and dirty cube/quad buffers load->draw->unload +RLAPI void rlLoadDrawCube(void); // Load and draw a cube +RLAPI void rlLoadDrawQuad(void); // Load and draw a quad + +#if defined(__cplusplus) +} +#endif + +#endif // RLGL_H + +/*********************************************************************************** +* +* RLGL IMPLEMENTATION +* +************************************************************************************/ + +#if defined(RLGL_IMPLEMENTATION) + +#if defined(GRAPHICS_API_OPENGL_11) + #if defined(__APPLE__) + #include // OpenGL 1.1 library for OSX + #include // OpenGL extensions library + #else + // APIENTRY for OpenGL function pointer declarations is required + #ifndef APIENTRY + #if defined(_WIN32) + #define APIENTRY __stdcall + #else + #define APIENTRY + #endif + #endif + // WINGDIAPI definition. Some Windows OpenGL headers need it + #if !defined(WINGDIAPI) && defined(_WIN32) + #define WINGDIAPI __declspec(dllimport) + #endif + + #include // OpenGL 1.1 library + #endif +#endif + +#if defined(GRAPHICS_API_OPENGL_33) + #if defined(__APPLE__) + #include // OpenGL 3 library for OSX + #include // OpenGL 3 extensions library for OSX + #else + #define GLAD_MALLOC RL_MALLOC + #define GLAD_FREE RL_FREE + + #define GLAD_GL_IMPLEMENTATION + #include "external/glad.h" // GLAD extensions loading library, includes OpenGL headers + #endif +#endif + +#if defined(GRAPHICS_API_OPENGL_ES2) + #define GL_GLEXT_PROTOTYPES + //#include // EGL library -> not required, platform layer + #include // OpenGL ES 2.0 library + #include // OpenGL ES 2.0 extensions library + + // It seems OpenGL ES 2.0 instancing entry points are not defined on Raspberry Pi + // provided headers (despite being defined in official Khronos GLES2 headers) + #if defined(PLATFORM_RPI) || defined(PLATFORM_DRM) + typedef void (GL_APIENTRYP PFNGLDRAWARRAYSINSTANCEDEXTPROC) (GLenum mode, GLint start, GLsizei count, GLsizei primcount); + typedef void (GL_APIENTRYP PFNGLDRAWELEMENTSINSTANCEDEXTPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei primcount); + typedef void (GL_APIENTRYP PFNGLVERTEXATTRIBDIVISOREXTPROC) (GLuint index, GLuint divisor); + #endif +#endif + +#include // Required for: malloc(), free() +#include // Required for: strcmp(), strlen() [Used in rlglInit(), on extensions loading] +#include // Required for: sqrtf(), sinf(), cosf(), floor(), log() + +//---------------------------------------------------------------------------------- +// Defines and Macros +//---------------------------------------------------------------------------------- +#ifndef PI + #define PI 3.14159265358979323846f +#endif +#ifndef DEG2RAD + #define DEG2RAD (PI/180.0f) +#endif +#ifndef RAD2DEG + #define RAD2DEG (180.0f/PI) +#endif + +#ifndef GL_SHADING_LANGUAGE_VERSION + #define GL_SHADING_LANGUAGE_VERSION 0x8B8C +#endif + +#ifndef GL_COMPRESSED_RGB_S3TC_DXT1_EXT + #define GL_COMPRESSED_RGB_S3TC_DXT1_EXT 0x83F0 +#endif +#ifndef GL_COMPRESSED_RGBA_S3TC_DXT1_EXT + #define GL_COMPRESSED_RGBA_S3TC_DXT1_EXT 0x83F1 +#endif +#ifndef GL_COMPRESSED_RGBA_S3TC_DXT3_EXT + #define GL_COMPRESSED_RGBA_S3TC_DXT3_EXT 0x83F2 +#endif +#ifndef GL_COMPRESSED_RGBA_S3TC_DXT5_EXT + #define GL_COMPRESSED_RGBA_S3TC_DXT5_EXT 0x83F3 +#endif +#ifndef GL_ETC1_RGB8_OES + #define GL_ETC1_RGB8_OES 0x8D64 +#endif +#ifndef GL_COMPRESSED_RGB8_ETC2 + #define GL_COMPRESSED_RGB8_ETC2 0x9274 +#endif +#ifndef GL_COMPRESSED_RGBA8_ETC2_EAC + #define GL_COMPRESSED_RGBA8_ETC2_EAC 0x9278 +#endif +#ifndef GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG + #define GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG 0x8C00 +#endif +#ifndef GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG + #define GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG 0x8C02 +#endif +#ifndef GL_COMPRESSED_RGBA_ASTC_4x4_KHR + #define GL_COMPRESSED_RGBA_ASTC_4x4_KHR 0x93b0 +#endif +#ifndef GL_COMPRESSED_RGBA_ASTC_8x8_KHR + #define GL_COMPRESSED_RGBA_ASTC_8x8_KHR 0x93b7 +#endif + +#ifndef GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT + #define GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT 0x84FF +#endif +#ifndef GL_TEXTURE_MAX_ANISOTROPY_EXT + #define GL_TEXTURE_MAX_ANISOTROPY_EXT 0x84FE +#endif + +#if defined(GRAPHICS_API_OPENGL_11) + #define GL_UNSIGNED_SHORT_5_6_5 0x8363 + #define GL_UNSIGNED_SHORT_5_5_5_1 0x8034 + #define GL_UNSIGNED_SHORT_4_4_4_4 0x8033 +#endif + +#if defined(GRAPHICS_API_OPENGL_21) + #define GL_LUMINANCE 0x1909 + #define GL_LUMINANCE_ALPHA 0x190A +#endif + +#if defined(GRAPHICS_API_OPENGL_ES2) + #define glClearDepth glClearDepthf + #define GL_READ_FRAMEBUFFER GL_FRAMEBUFFER + #define GL_DRAW_FRAMEBUFFER GL_FRAMEBUFFER +#endif + +// Default shader vertex attribute names to set location points +#ifndef RL_DEFAULT_SHADER_ATTRIB_NAME_POSITION + #define RL_DEFAULT_SHADER_ATTRIB_NAME_POSITION "vertexPosition" // Binded by default to shader location: 0 +#endif +#ifndef RL_DEFAULT_SHADER_ATTRIB_NAME_TEXCOORD + #define RL_DEFAULT_SHADER_ATTRIB_NAME_TEXCOORD "vertexTexCoord" // Binded by default to shader location: 1 +#endif +#ifndef RL_DEFAULT_SHADER_ATTRIB_NAME_NORMAL + #define RL_DEFAULT_SHADER_ATTRIB_NAME_NORMAL "vertexNormal" // Binded by default to shader location: 2 +#endif +#ifndef RL_DEFAULT_SHADER_ATTRIB_NAME_COLOR + #define RL_DEFAULT_SHADER_ATTRIB_NAME_COLOR "vertexColor" // Binded by default to shader location: 3 +#endif +#ifndef RL_DEFAULT_SHADER_ATTRIB_NAME_TANGENT + #define RL_DEFAULT_SHADER_ATTRIB_NAME_TANGENT "vertexTangent" // Binded by default to shader location: 4 +#endif +#ifndef RL_DEFAULT_SHADER_ATTRIB_NAME_TEXCOORD2 + #define RL_DEFAULT_SHADER_ATTRIB_NAME_TEXCOORD2 "vertexTexCoord2" // Binded by default to shader location: 5 +#endif + +#ifndef RL_DEFAULT_SHADER_UNIFORM_NAME_MVP + #define RL_DEFAULT_SHADER_UNIFORM_NAME_MVP "mvp" // model-view-projection matrix +#endif +#ifndef RL_DEFAULT_SHADER_UNIFORM_NAME_VIEW + #define RL_DEFAULT_SHADER_UNIFORM_NAME_VIEW "matView" // view matrix +#endif +#ifndef RL_DEFAULT_SHADER_UNIFORM_NAME_PROJECTION + #define RL_DEFAULT_SHADER_UNIFORM_NAME_PROJECTION "matProjection" // projection matrix +#endif +#ifndef RL_DEFAULT_SHADER_UNIFORM_NAME_MODEL + #define RL_DEFAULT_SHADER_UNIFORM_NAME_MODEL "matModel" // model matrix +#endif +#ifndef RL_DEFAULT_SHADER_UNIFORM_NAME_NORMAL + #define RL_DEFAULT_SHADER_UNIFORM_NAME_NORMAL "matNormal" // normal matrix (transpose(inverse(matModelView)) +#endif +#ifndef RL_DEFAULT_SHADER_UNIFORM_NAME_COLOR + #define RL_DEFAULT_SHADER_UNIFORM_NAME_COLOR "colDiffuse" // color diffuse (base tint color, multiplied by texture color) +#endif +#ifndef RL_DEFAULT_SHADER_SAMPLER2D_NAME_TEXTURE0 + #define RL_DEFAULT_SHADER_SAMPLER2D_NAME_TEXTURE0 "texture0" // texture0 (texture slot active 0) +#endif +#ifndef RL_DEFAULT_SHADER_SAMPLER2D_NAME_TEXTURE1 + #define RL_DEFAULT_SHADER_SAMPLER2D_NAME_TEXTURE1 "texture1" // texture1 (texture slot active 1) +#endif +#ifndef RL_DEFAULT_SHADER_SAMPLER2D_NAME_TEXTURE2 + #define RL_DEFAULT_SHADER_SAMPLER2D_NAME_TEXTURE2 "texture2" // texture2 (texture slot active 2) +#endif + +//---------------------------------------------------------------------------------- +// Types and Structures Definition +//---------------------------------------------------------------------------------- +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) +typedef struct rlglData { + rlRenderBatch *currentBatch; // Current render batch + rlRenderBatch defaultBatch; // Default internal render batch + + struct { + int vertexCounter; // Current active render batch vertex counter (generic, used for all batches) + float texcoordx, texcoordy; // Current active texture coordinate (added on glVertex*()) + float normalx, normaly, normalz; // Current active normal (added on glVertex*()) + unsigned char colorr, colorg, colorb, colora; // Current active color (added on glVertex*()) + + int currentMatrixMode; // Current matrix mode + Matrix *currentMatrix; // Current matrix pointer + Matrix modelview; // Default modelview matrix + Matrix projection; // Default projection matrix + Matrix transform; // Transform matrix to be used with rlTranslate, rlRotate, rlScale + bool transformRequired; // Require transform matrix application to current draw-call vertex (if required) + Matrix stack[RL_MAX_MATRIX_STACK_SIZE];// Matrix stack for push/pop + int stackCounter; // Matrix stack counter + + unsigned int defaultTextureId; // Default texture used on shapes/poly drawing (required by shader) + unsigned int activeTextureId[RL_DEFAULT_BATCH_MAX_TEXTURE_UNITS]; // Active texture ids to be enabled on batch drawing (0 active by default) + unsigned int defaultVShaderId; // Default vertex shader id (used by default shader program) + unsigned int defaultFShaderId; // Default fragment shader id (used by default shader program) + unsigned int defaultShaderId; // Default shader program id, supports vertex color and diffuse texture + int *defaultShaderLocs; // Default shader locations pointer to be used on rendering + unsigned int currentShaderId; // Current shader id to be used on rendering (by default, defaultShaderId) + int *currentShaderLocs; // Current shader locations pointer to be used on rendering (by default, defaultShaderLocs) + + bool stereoRender; // Stereo rendering flag + Matrix projectionStereo[2]; // VR stereo rendering eyes projection matrices + Matrix viewOffsetStereo[2]; // VR stereo rendering eyes view offset matrices + + int currentBlendMode; // Blending mode active + int glBlendSrcFactor; // Blending source factor + int glBlendDstFactor; // Blending destination factor + int glBlendEquation; // Blending equation + + int framebufferWidth; // Default framebuffer width + int framebufferHeight; // Default framebuffer height + + } State; // Renderer state + struct { + bool vao; // VAO support (OpenGL ES2 could not support VAO extension) (GL_ARB_vertex_array_object) + bool instancing; // Instancing supported (GL_ANGLE_instanced_arrays, GL_EXT_draw_instanced + GL_EXT_instanced_arrays) + bool texNPOT; // NPOT textures full support (GL_ARB_texture_non_power_of_two, GL_OES_texture_npot) + bool texDepth; // Depth textures supported (GL_ARB_depth_texture, GL_WEBGL_depth_texture, GL_OES_depth_texture) + bool texFloat32; // float textures support (32 bit per channel) (GL_OES_texture_float) + bool texCompDXT; // DDS texture compression support (GL_EXT_texture_compression_s3tc, GL_WEBGL_compressed_texture_s3tc, GL_WEBKIT_WEBGL_compressed_texture_s3tc) + bool texCompETC1; // ETC1 texture compression support (GL_OES_compressed_ETC1_RGB8_texture, GL_WEBGL_compressed_texture_etc1) + bool texCompETC2; // ETC2/EAC texture compression support (GL_ARB_ES3_compatibility) + bool texCompPVRT; // PVR texture compression support (GL_IMG_texture_compression_pvrtc) + bool texCompASTC; // ASTC texture compression support (GL_KHR_texture_compression_astc_hdr, GL_KHR_texture_compression_astc_ldr) + bool texMirrorClamp; // Clamp mirror wrap mode supported (GL_EXT_texture_mirror_clamp) + bool texAnisoFilter; // Anisotropic texture filtering support (GL_EXT_texture_filter_anisotropic) + bool computeShader; // Compute shaders support (GL_ARB_compute_shader) + bool ssbo; // Shader storage buffer object support (GL_ARB_shader_storage_buffer_object) + + float maxAnisotropyLevel; // Maximum anisotropy level supported (minimum is 2.0f) + int maxDepthBits; // Maximum bits for depth component + + } ExtSupported; // Extensions supported flags +} rlglData; + +typedef void *(*rlglLoadProc)(const char *name); // OpenGL extension functions loader signature (same as GLADloadproc) + +#endif // GRAPHICS_API_OPENGL_33 || GRAPHICS_API_OPENGL_ES2 + +//---------------------------------------------------------------------------------- +// Global Variables Definition +//---------------------------------------------------------------------------------- +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) +static rlglData RLGL = { 0 }; +#endif // GRAPHICS_API_OPENGL_33 || GRAPHICS_API_OPENGL_ES2 + +#if defined(GRAPHICS_API_OPENGL_ES2) +// NOTE: VAO functionality is exposed through extensions (OES) +static PFNGLGENVERTEXARRAYSOESPROC glGenVertexArrays = NULL; +static PFNGLBINDVERTEXARRAYOESPROC glBindVertexArray = NULL; +static PFNGLDELETEVERTEXARRAYSOESPROC glDeleteVertexArrays = NULL; + +// NOTE: Instancing functionality could also be available through extension +static PFNGLDRAWARRAYSINSTANCEDEXTPROC glDrawArraysInstanced = NULL; +static PFNGLDRAWELEMENTSINSTANCEDEXTPROC glDrawElementsInstanced = NULL; +static PFNGLVERTEXATTRIBDIVISOREXTPROC glVertexAttribDivisor = NULL; +#endif + +//---------------------------------------------------------------------------------- +// Module specific Functions Declaration +//---------------------------------------------------------------------------------- +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) +static void rlLoadShaderDefault(void); // Load default shader +static void rlUnloadShaderDefault(void); // Unload default shader +#if defined(RLGL_SHOW_GL_DETAILS_INFO) +static char *rlGetCompressedFormatName(int format); // Get compressed format official GL identifier name +#endif // RLGL_SHOW_GL_DETAILS_INFO +#endif // GRAPHICS_API_OPENGL_33 || GRAPHICS_API_OPENGL_ES2 +#if defined(GRAPHICS_API_OPENGL_11) +static int rlGenTextureMipmapsData(unsigned char *data, int baseWidth, int baseHeight); // Generate mipmaps data on CPU side +static unsigned char *rlGenNextMipmapData(unsigned char *srcData, int srcWidth, int srcHeight); // Generate next mipmap level on CPU side +#endif +static int rlGetPixelDataSize(int width, int height, int format); // Get pixel data size in bytes (image or texture) +// Auxiliar matrix math functions +static Matrix rlMatrixIdentity(void); // Get identity matrix +static Matrix rlMatrixMultiply(Matrix left, Matrix right); // Multiply two matrices + +//---------------------------------------------------------------------------------- +// Module Functions Definition - Matrix operations +//---------------------------------------------------------------------------------- + +#if defined(GRAPHICS_API_OPENGL_11) +// Fallback to OpenGL 1.1 function calls +//--------------------------------------- +void rlMatrixMode(int mode) +{ + switch (mode) + { + case RL_PROJECTION: glMatrixMode(GL_PROJECTION); break; + case RL_MODELVIEW: glMatrixMode(GL_MODELVIEW); break; + case RL_TEXTURE: glMatrixMode(GL_TEXTURE); break; + default: break; + } +} + +void rlFrustum(double left, double right, double bottom, double top, double znear, double zfar) +{ + glFrustum(left, right, bottom, top, znear, zfar); +} + +void rlOrtho(double left, double right, double bottom, double top, double znear, double zfar) +{ + glOrtho(left, right, bottom, top, znear, zfar); +} + +void rlPushMatrix(void) { glPushMatrix(); } +void rlPopMatrix(void) { glPopMatrix(); } +void rlLoadIdentity(void) { glLoadIdentity(); } +void rlTranslatef(float x, float y, float z) { glTranslatef(x, y, z); } +void rlRotatef(float angle, float x, float y, float z) { glRotatef(angle, x, y, z); } +void rlScalef(float x, float y, float z) { glScalef(x, y, z); } +void rlMultMatrixf(float *matf) { glMultMatrixf(matf); } +#endif +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) +// Choose the current matrix to be transformed +void rlMatrixMode(int mode) +{ + if (mode == RL_PROJECTION) RLGL.State.currentMatrix = &RLGL.State.projection; + else if (mode == RL_MODELVIEW) RLGL.State.currentMatrix = &RLGL.State.modelview; + //else if (mode == RL_TEXTURE) // Not supported + + RLGL.State.currentMatrixMode = mode; +} + +// Push the current matrix into RLGL.State.stack +void rlPushMatrix(void) +{ + if (RLGL.State.stackCounter >= RL_MAX_MATRIX_STACK_SIZE) TRACELOG(RL_LOG_ERROR, "RLGL: Matrix stack overflow (RL_MAX_MATRIX_STACK_SIZE)"); + + if (RLGL.State.currentMatrixMode == RL_MODELVIEW) + { + RLGL.State.transformRequired = true; + RLGL.State.currentMatrix = &RLGL.State.transform; + } + + RLGL.State.stack[RLGL.State.stackCounter] = *RLGL.State.currentMatrix; + RLGL.State.stackCounter++; +} + +// Pop lattest inserted matrix from RLGL.State.stack +void rlPopMatrix(void) +{ + if (RLGL.State.stackCounter > 0) + { + Matrix mat = RLGL.State.stack[RLGL.State.stackCounter - 1]; + *RLGL.State.currentMatrix = mat; + RLGL.State.stackCounter--; + } + + if ((RLGL.State.stackCounter == 0) && (RLGL.State.currentMatrixMode == RL_MODELVIEW)) + { + RLGL.State.currentMatrix = &RLGL.State.modelview; + RLGL.State.transformRequired = false; + } +} + +// Reset current matrix to identity matrix +void rlLoadIdentity(void) +{ + *RLGL.State.currentMatrix = rlMatrixIdentity(); +} + +// Multiply the current matrix by a translation matrix +void rlTranslatef(float x, float y, float z) +{ + Matrix matTranslation = { + 1.0f, 0.0f, 0.0f, x, + 0.0f, 1.0f, 0.0f, y, + 0.0f, 0.0f, 1.0f, z, + 0.0f, 0.0f, 0.0f, 1.0f + }; + + // NOTE: We transpose matrix with multiplication order + *RLGL.State.currentMatrix = rlMatrixMultiply(matTranslation, *RLGL.State.currentMatrix); +} + +// Multiply the current matrix by a rotation matrix +// NOTE: The provided angle must be in degrees +void rlRotatef(float angle, float x, float y, float z) +{ + Matrix matRotation = rlMatrixIdentity(); + + // Axis vector (x, y, z) normalization + float lengthSquared = x*x + y*y + z*z; + if ((lengthSquared != 1.0f) && (lengthSquared != 0.0f)) + { + float inverseLength = 1.0f/sqrtf(lengthSquared); + x *= inverseLength; + y *= inverseLength; + z *= inverseLength; + } + + // Rotation matrix generation + float sinres = sinf(DEG2RAD*angle); + float cosres = cosf(DEG2RAD*angle); + float t = 1.0f - cosres; + + matRotation.m0 = x*x*t + cosres; + matRotation.m1 = y*x*t + z*sinres; + matRotation.m2 = z*x*t - y*sinres; + matRotation.m3 = 0.0f; + + matRotation.m4 = x*y*t - z*sinres; + matRotation.m5 = y*y*t + cosres; + matRotation.m6 = z*y*t + x*sinres; + matRotation.m7 = 0.0f; + + matRotation.m8 = x*z*t + y*sinres; + matRotation.m9 = y*z*t - x*sinres; + matRotation.m10 = z*z*t + cosres; + matRotation.m11 = 0.0f; + + matRotation.m12 = 0.0f; + matRotation.m13 = 0.0f; + matRotation.m14 = 0.0f; + matRotation.m15 = 1.0f; + + // NOTE: We transpose matrix with multiplication order + *RLGL.State.currentMatrix = rlMatrixMultiply(matRotation, *RLGL.State.currentMatrix); +} + +// Multiply the current matrix by a scaling matrix +void rlScalef(float x, float y, float z) +{ + Matrix matScale = { + x, 0.0f, 0.0f, 0.0f, + 0.0f, y, 0.0f, 0.0f, + 0.0f, 0.0f, z, 0.0f, + 0.0f, 0.0f, 0.0f, 1.0f + }; + + // NOTE: We transpose matrix with multiplication order + *RLGL.State.currentMatrix = rlMatrixMultiply(matScale, *RLGL.State.currentMatrix); +} + +// Multiply the current matrix by another matrix +void rlMultMatrixf(float *matf) +{ + // Matrix creation from array + Matrix mat = { matf[0], matf[4], matf[8], matf[12], + matf[1], matf[5], matf[9], matf[13], + matf[2], matf[6], matf[10], matf[14], + matf[3], matf[7], matf[11], matf[15] }; + + *RLGL.State.currentMatrix = rlMatrixMultiply(*RLGL.State.currentMatrix, mat); +} + +// Multiply the current matrix by a perspective matrix generated by parameters +void rlFrustum(double left, double right, double bottom, double top, double znear, double zfar) +{ + Matrix matFrustum = { 0 }; + + float rl = (float)(right - left); + float tb = (float)(top - bottom); + float fn = (float)(zfar - znear); + + matFrustum.m0 = ((float) znear*2.0f)/rl; + matFrustum.m1 = 0.0f; + matFrustum.m2 = 0.0f; + matFrustum.m3 = 0.0f; + + matFrustum.m4 = 0.0f; + matFrustum.m5 = ((float) znear*2.0f)/tb; + matFrustum.m6 = 0.0f; + matFrustum.m7 = 0.0f; + + matFrustum.m8 = ((float)right + (float)left)/rl; + matFrustum.m9 = ((float)top + (float)bottom)/tb; + matFrustum.m10 = -((float)zfar + (float)znear)/fn; + matFrustum.m11 = -1.0f; + + matFrustum.m12 = 0.0f; + matFrustum.m13 = 0.0f; + matFrustum.m14 = -((float)zfar*(float)znear*2.0f)/fn; + matFrustum.m15 = 0.0f; + + *RLGL.State.currentMatrix = rlMatrixMultiply(*RLGL.State.currentMatrix, matFrustum); +} + +// Multiply the current matrix by an orthographic matrix generated by parameters +void rlOrtho(double left, double right, double bottom, double top, double znear, double zfar) +{ + // NOTE: If left-right and top-botton values are equal it could create a division by zero, + // response to it is platform/compiler dependant + Matrix matOrtho = { 0 }; + + float rl = (float)(right - left); + float tb = (float)(top - bottom); + float fn = (float)(zfar - znear); + + matOrtho.m0 = 2.0f/rl; + matOrtho.m1 = 0.0f; + matOrtho.m2 = 0.0f; + matOrtho.m3 = 0.0f; + matOrtho.m4 = 0.0f; + matOrtho.m5 = 2.0f/tb; + matOrtho.m6 = 0.0f; + matOrtho.m7 = 0.0f; + matOrtho.m8 = 0.0f; + matOrtho.m9 = 0.0f; + matOrtho.m10 = -2.0f/fn; + matOrtho.m11 = 0.0f; + matOrtho.m12 = -((float)left + (float)right)/rl; + matOrtho.m13 = -((float)top + (float)bottom)/tb; + matOrtho.m14 = -((float)zfar + (float)znear)/fn; + matOrtho.m15 = 1.0f; + + *RLGL.State.currentMatrix = rlMatrixMultiply(*RLGL.State.currentMatrix, matOrtho); +} +#endif + +// Set the viewport area (transformation from normalized device coordinates to window coordinates) +void rlViewport(int x, int y, int width, int height) +{ + glViewport(x, y, width, height); +} + +//---------------------------------------------------------------------------------- +// Module Functions Definition - Vertex level operations +//---------------------------------------------------------------------------------- +#if defined(GRAPHICS_API_OPENGL_11) +// Fallback to OpenGL 1.1 function calls +//--------------------------------------- +void rlBegin(int mode) +{ + switch (mode) + { + case RL_LINES: glBegin(GL_LINES); break; + case RL_TRIANGLES: glBegin(GL_TRIANGLES); break; + case RL_QUADS: glBegin(GL_QUADS); break; + default: break; + } +} + +void rlEnd() { glEnd(); } +void rlVertex2i(int x, int y) { glVertex2i(x, y); } +void rlVertex2f(float x, float y) { glVertex2f(x, y); } +void rlVertex3f(float x, float y, float z) { glVertex3f(x, y, z); } +void rlTexCoord2f(float x, float y) { glTexCoord2f(x, y); } +void rlNormal3f(float x, float y, float z) { glNormal3f(x, y, z); } +void rlColor4ub(unsigned char r, unsigned char g, unsigned char b, unsigned char a) { glColor4ub(r, g, b, a); } +void rlColor3f(float x, float y, float z) { glColor3f(x, y, z); } +void rlColor4f(float x, float y, float z, float w) { glColor4f(x, y, z, w); } +#endif +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) +// Initialize drawing mode (how to organize vertex) +void rlBegin(int mode) +{ + // Draw mode can be RL_LINES, RL_TRIANGLES and RL_QUADS + // NOTE: In all three cases, vertex are accumulated over default internal vertex buffer + if (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode != mode) + { + if (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount > 0) + { + // Make sure current RLGL.currentBatch->draws[i].vertexCount is aligned a multiple of 4, + // that way, following QUADS drawing will keep aligned with index processing + // It implies adding some extra alignment vertex at the end of the draw, + // those vertex are not processed but they are considered as an additional offset + // for the next set of vertex to be drawn + if (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode == RL_LINES) RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment = ((RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount < 4)? RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount : RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount%4); + else if (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode == RL_TRIANGLES) RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment = ((RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount < 4)? 1 : (4 - (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount%4))); + else RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment = 0; + + if (!rlCheckRenderBatchLimit(RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment)) + { + RLGL.State.vertexCounter += RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment; + RLGL.currentBatch->drawCounter++; + } + } + + if (RLGL.currentBatch->drawCounter >= RL_DEFAULT_BATCH_DRAWCALLS) rlDrawRenderBatch(RLGL.currentBatch); + + RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode = mode; + RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount = 0; + RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].textureId = RLGL.State.defaultTextureId; + } +} + +// Finish vertex providing +void rlEnd(void) +{ + // NOTE: Depth increment is dependant on rlOrtho(): z-near and z-far values, + // as well as depth buffer bit-depth (16bit or 24bit or 32bit) + // Correct increment formula would be: depthInc = (zfar - znear)/pow(2, bits) + RLGL.currentBatch->currentDepth += (1.0f/20000.0f); + + // Verify internal buffers limits + // NOTE: This check is combined with usage of rlCheckRenderBatchLimit() + if (RLGL.State.vertexCounter >= (RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].elementCount*4 - 4)) + { + // WARNING: If we are between rlPushMatrix() and rlPopMatrix() and we need to force a rlDrawRenderBatch(), + // we need to call rlPopMatrix() before to recover *RLGL.State.currentMatrix (RLGL.State.modelview) for the next forced draw call! + // If we have multiple matrix pushed, it will require "RLGL.State.stackCounter" pops before launching the draw + for (int i = RLGL.State.stackCounter; i >= 0; i--) rlPopMatrix(); + rlDrawRenderBatch(RLGL.currentBatch); + } +} + +// Define one vertex (position) +// NOTE: Vertex position data is the basic information required for drawing +void rlVertex3f(float x, float y, float z) +{ + float tx = x; + float ty = y; + float tz = z; + + // Transform provided vector if required + if (RLGL.State.transformRequired) + { + tx = RLGL.State.transform.m0*x + RLGL.State.transform.m4*y + RLGL.State.transform.m8*z + RLGL.State.transform.m12; + ty = RLGL.State.transform.m1*x + RLGL.State.transform.m5*y + RLGL.State.transform.m9*z + RLGL.State.transform.m13; + tz = RLGL.State.transform.m2*x + RLGL.State.transform.m6*y + RLGL.State.transform.m10*z + RLGL.State.transform.m14; + } + + // Verify that current vertex buffer elements limit has not been reached + if (RLGL.State.vertexCounter < (RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].elementCount*4)) + { + // Add vertices + RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].vertices[3*RLGL.State.vertexCounter] = tx; + RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].vertices[3*RLGL.State.vertexCounter + 1] = ty; + RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].vertices[3*RLGL.State.vertexCounter + 2] = tz; + + // Add current texcoord + RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].texcoords[2*RLGL.State.vertexCounter] = RLGL.State.texcoordx; + RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].texcoords[2*RLGL.State.vertexCounter + 1] = RLGL.State.texcoordy; + + // TODO: Add current normal + // By default rlVertexBuffer type does not store normals + + // Add current color + RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].colors[4*RLGL.State.vertexCounter] = RLGL.State.colorr; + RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].colors[4*RLGL.State.vertexCounter + 1] = RLGL.State.colorg; + RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].colors[4*RLGL.State.vertexCounter + 2] = RLGL.State.colorb; + RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].colors[4*RLGL.State.vertexCounter + 3] = RLGL.State.colora; + + RLGL.State.vertexCounter++; + + RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount++; + } + else TRACELOG(RL_LOG_ERROR, "RLGL: Batch elements overflow"); +} + +// Define one vertex (position) +void rlVertex2f(float x, float y) +{ + rlVertex3f(x, y, RLGL.currentBatch->currentDepth); +} + +// Define one vertex (position) +void rlVertex2i(int x, int y) +{ + rlVertex3f((float)x, (float)y, RLGL.currentBatch->currentDepth); +} + +// Define one vertex (texture coordinate) +// NOTE: Texture coordinates are limited to QUADS only +void rlTexCoord2f(float x, float y) +{ + RLGL.State.texcoordx = x; + RLGL.State.texcoordy = y; +} + +// Define one vertex (normal) +// NOTE: Normals limited to TRIANGLES only? +void rlNormal3f(float x, float y, float z) +{ + RLGL.State.normalx = x; + RLGL.State.normaly = y; + RLGL.State.normalz = z; +} + +// Define one vertex (color) +void rlColor4ub(unsigned char x, unsigned char y, unsigned char z, unsigned char w) +{ + RLGL.State.colorr = x; + RLGL.State.colorg = y; + RLGL.State.colorb = z; + RLGL.State.colora = w; +} + +// Define one vertex (color) +void rlColor4f(float r, float g, float b, float a) +{ + rlColor4ub((unsigned char)(r*255), (unsigned char)(g*255), (unsigned char)(b*255), (unsigned char)(a*255)); +} + +// Define one vertex (color) +void rlColor3f(float x, float y, float z) +{ + rlColor4ub((unsigned char)(x*255), (unsigned char)(y*255), (unsigned char)(z*255), 255); +} + +#endif + +//-------------------------------------------------------------------------------------- +// Module Functions Definition - OpenGL style functions (common to 1.1, 3.3+, ES2) +//-------------------------------------------------------------------------------------- + +// Set current texture to use +void rlSetTexture(unsigned int id) +{ + if (id == 0) + { +#if defined(GRAPHICS_API_OPENGL_11) + rlDisableTexture(); +#else + // NOTE: If quads batch limit is reached, we force a draw call and next batch starts + if (RLGL.State.vertexCounter >= + RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].elementCount*4) + { + rlDrawRenderBatch(RLGL.currentBatch); + } +#endif + } + else + { +#if defined(GRAPHICS_API_OPENGL_11) + rlEnableTexture(id); +#else + if (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].textureId != id) + { + if (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount > 0) + { + // Make sure current RLGL.currentBatch->draws[i].vertexCount is aligned a multiple of 4, + // that way, following QUADS drawing will keep aligned with index processing + // It implies adding some extra alignment vertex at the end of the draw, + // those vertex are not processed but they are considered as an additional offset + // for the next set of vertex to be drawn + if (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode == RL_LINES) RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment = ((RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount < 4)? RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount : RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount%4); + else if (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode == RL_TRIANGLES) RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment = ((RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount < 4)? 1 : (4 - (RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount%4))); + else RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment = 0; + + if (!rlCheckRenderBatchLimit(RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment)) + { + RLGL.State.vertexCounter += RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexAlignment; + + RLGL.currentBatch->drawCounter++; + } + } + + if (RLGL.currentBatch->drawCounter >= RL_DEFAULT_BATCH_DRAWCALLS) rlDrawRenderBatch(RLGL.currentBatch); + + RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].textureId = id; + RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].vertexCount = 0; + } +#endif + } +} + +// Select and active a texture slot +void rlActiveTextureSlot(int slot) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glActiveTexture(GL_TEXTURE0 + slot); +#endif +} + +// Enable texture +void rlEnableTexture(unsigned int id) +{ +#if defined(GRAPHICS_API_OPENGL_11) + glEnable(GL_TEXTURE_2D); +#endif + glBindTexture(GL_TEXTURE_2D, id); +} + +// Disable texture +void rlDisableTexture(void) +{ +#if defined(GRAPHICS_API_OPENGL_11) + glDisable(GL_TEXTURE_2D); +#endif + glBindTexture(GL_TEXTURE_2D, 0); +} + +// Enable texture cubemap +void rlEnableTextureCubemap(unsigned int id) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glBindTexture(GL_TEXTURE_CUBE_MAP, id); +#endif +} + +// Disable texture cubemap +void rlDisableTextureCubemap(void) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glBindTexture(GL_TEXTURE_CUBE_MAP, 0); +#endif +} + +// Set texture parameters (wrap mode/filter mode) +void rlTextureParameters(unsigned int id, int param, int value) +{ + glBindTexture(GL_TEXTURE_2D, id); + + switch (param) + { + case RL_TEXTURE_WRAP_S: + case RL_TEXTURE_WRAP_T: + { + if (value == RL_TEXTURE_WRAP_MIRROR_CLAMP) + { +#if !defined(GRAPHICS_API_OPENGL_11) + if (RLGL.ExtSupported.texMirrorClamp) glTexParameteri(GL_TEXTURE_2D, param, value); + else TRACELOG(RL_LOG_WARNING, "GL: Clamp mirror wrap mode not supported (GL_MIRROR_CLAMP_EXT)"); +#endif + } + else glTexParameteri(GL_TEXTURE_2D, param, value); + + } break; + case RL_TEXTURE_MAG_FILTER: + case RL_TEXTURE_MIN_FILTER: glTexParameteri(GL_TEXTURE_2D, param, value); break; + case RL_TEXTURE_FILTER_ANISOTROPIC: + { +#if !defined(GRAPHICS_API_OPENGL_11) + if (value <= RLGL.ExtSupported.maxAnisotropyLevel) glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, (float)value); + else if (RLGL.ExtSupported.maxAnisotropyLevel > 0.0f) + { + TRACELOG(RL_LOG_WARNING, "GL: Maximum anisotropic filter level supported is %iX", id, RLGL.ExtSupported.maxAnisotropyLevel); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, (float)value); + } + else TRACELOG(RL_LOG_WARNING, "GL: Anisotropic filtering not supported"); +#endif + } break; + default: break; + } + + glBindTexture(GL_TEXTURE_2D, 0); +} + +// Enable shader program +void rlEnableShader(unsigned int id) +{ +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)) + glUseProgram(id); +#endif +} + +// Disable shader program +void rlDisableShader(void) +{ +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)) + glUseProgram(0); +#endif +} + +// Enable rendering to texture (fbo) +void rlEnableFramebuffer(unsigned int id) +{ +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)) && defined(RLGL_RENDER_TEXTURES_HINT) + glBindFramebuffer(GL_FRAMEBUFFER, id); +#endif +} + +// Disable rendering to texture +void rlDisableFramebuffer(void) +{ +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)) && defined(RLGL_RENDER_TEXTURES_HINT) + glBindFramebuffer(GL_FRAMEBUFFER, 0); +#endif +} + +// Activate multiple draw color buffers +// NOTE: One color buffer is always active by default +void rlActiveDrawBuffers(int count) +{ +#if (defined(GRAPHICS_API_OPENGL_33) && defined(RLGL_RENDER_TEXTURES_HINT)) + // NOTE: Maximum number of draw buffers supported is implementation dependant, + // it can be queried with glGet*() but it must be at least 8 + //GLint maxDrawBuffers = 0; + //glGetIntegerv(GL_MAX_DRAW_BUFFERS, &maxDrawBuffers); + + if (count > 0) + { + if (count > 8) TRACELOG(LOG_WARNING, "GL: Max color buffers limited to 8"); + else + { + unsigned int buffers[8] = { + GL_COLOR_ATTACHMENT0, + GL_COLOR_ATTACHMENT1, + GL_COLOR_ATTACHMENT2, + GL_COLOR_ATTACHMENT3, + GL_COLOR_ATTACHMENT4, + GL_COLOR_ATTACHMENT5, + GL_COLOR_ATTACHMENT6, + GL_COLOR_ATTACHMENT7, + }; + + glDrawBuffers(count, buffers); + } + } + else TRACELOG(LOG_WARNING, "GL: One color buffer active by default"); +#endif +} + +//---------------------------------------------------------------------------------- +// General render state configuration +//---------------------------------------------------------------------------------- + +// Enable color blending +void rlEnableColorBlend(void) { glEnable(GL_BLEND); } + +// Disable color blending +void rlDisableColorBlend(void) { glDisable(GL_BLEND); } + +// Enable depth test +void rlEnableDepthTest(void) { glEnable(GL_DEPTH_TEST); } + +// Disable depth test +void rlDisableDepthTest(void) { glDisable(GL_DEPTH_TEST); } + +// Enable depth write +void rlEnableDepthMask(void) { glDepthMask(GL_TRUE); } + +// Disable depth write +void rlDisableDepthMask(void) { glDepthMask(GL_FALSE); } + +// Enable backface culling +void rlEnableBackfaceCulling(void) { glEnable(GL_CULL_FACE); } + +// Disable backface culling +void rlDisableBackfaceCulling(void) { glDisable(GL_CULL_FACE); } + +// Enable scissor test +void rlEnableScissorTest(void) { glEnable(GL_SCISSOR_TEST); } + +// Disable scissor test +void rlDisableScissorTest(void) { glDisable(GL_SCISSOR_TEST); } + +// Scissor test +void rlScissor(int x, int y, int width, int height) { glScissor(x, y, width, height); } + +// Enable wire mode +void rlEnableWireMode(void) +{ +#if defined(GRAPHICS_API_OPENGL_11) || defined(GRAPHICS_API_OPENGL_33) + // NOTE: glPolygonMode() not available on OpenGL ES + glPolygonMode(GL_FRONT_AND_BACK, GL_LINE); +#endif +} + +// Disable wire mode +void rlDisableWireMode(void) +{ +#if defined(GRAPHICS_API_OPENGL_11) || defined(GRAPHICS_API_OPENGL_33) + // NOTE: glPolygonMode() not available on OpenGL ES + glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); +#endif +} + +// Set the line drawing width +void rlSetLineWidth(float width) { glLineWidth(width); } + +// Get the line drawing width +float rlGetLineWidth(void) +{ + float width = 0; + glGetFloatv(GL_LINE_WIDTH, &width); + return width; +} + +// Enable line aliasing +void rlEnableSmoothLines(void) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_11) + glEnable(GL_LINE_SMOOTH); +#endif +} + +// Disable line aliasing +void rlDisableSmoothLines(void) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_11) + glDisable(GL_LINE_SMOOTH); +#endif +} + +// Enable stereo rendering +void rlEnableStereoRender(void) +{ +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)) + RLGL.State.stereoRender = true; +#endif +} + +// Disable stereo rendering +void rlDisableStereoRender(void) +{ +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)) + RLGL.State.stereoRender = false; +#endif +} + +// Check if stereo render is enabled +bool rlIsStereoRenderEnabled(void) +{ +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)) + return RLGL.State.stereoRender; +#else + return false; +#endif +} + +// Clear color buffer with color +void rlClearColor(unsigned char r, unsigned char g, unsigned char b, unsigned char a) +{ + // Color values clamp to 0.0f(0) and 1.0f(255) + float cr = (float)r/255; + float cg = (float)g/255; + float cb = (float)b/255; + float ca = (float)a/255; + + glClearColor(cr, cg, cb, ca); +} + +// Clear used screen buffers (color and depth) +void rlClearScreenBuffers(void) +{ + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear used buffers: Color and Depth (Depth is used for 3D) + //glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); // Stencil buffer not used... +} + +// Check and log OpenGL error codes +void rlCheckErrors() +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + int check = 1; + while (check) + { + const GLenum err = glGetError(); + switch (err) + { + case GL_NO_ERROR: check = 0; break; + case 0x0500: TRACELOG(RL_LOG_WARNING, "GL: Error detected: GL_INVALID_ENUM"); break; + case 0x0501: TRACELOG(RL_LOG_WARNING, "GL: Error detected: GL_INVALID_VALUE"); break; + case 0x0502: TRACELOG(RL_LOG_WARNING, "GL: Error detected: GL_INVALID_OPERATION"); break; + case 0x0503: TRACELOG(RL_LOG_WARNING, "GL: Error detected: GL_STACK_OVERFLOW"); break; + case 0x0504: TRACELOG(RL_LOG_WARNING, "GL: Error detected: GL_STACK_UNDERFLOW"); break; + case 0x0505: TRACELOG(RL_LOG_WARNING, "GL: Error detected: GL_OUT_OF_MEMORY"); break; + case 0x0506: TRACELOG(RL_LOG_WARNING, "GL: Error detected: GL_INVALID_FRAMEBUFFER_OPERATION"); break; + default: TRACELOG(RL_LOG_WARNING, "GL: Error detected: Unknown error code: %x", err); break; + } + } +#endif +} + +// Set blend mode +void rlSetBlendMode(int mode) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + if (RLGL.State.currentBlendMode != mode) + { + rlDrawRenderBatch(RLGL.currentBatch); + + switch (mode) + { + case RL_BLEND_ALPHA: glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); glBlendEquation(GL_FUNC_ADD); break; + case RL_BLEND_ADDITIVE: glBlendFunc(GL_SRC_ALPHA, GL_ONE); glBlendEquation(GL_FUNC_ADD); break; + case RL_BLEND_MULTIPLIED: glBlendFunc(GL_DST_COLOR, GL_ONE_MINUS_SRC_ALPHA); glBlendEquation(GL_FUNC_ADD); break; + case RL_BLEND_ADD_COLORS: glBlendFunc(GL_ONE, GL_ONE); glBlendEquation(GL_FUNC_ADD); break; + case RL_BLEND_SUBTRACT_COLORS: glBlendFunc(GL_ONE, GL_ONE); glBlendEquation(GL_FUNC_SUBTRACT); break; + case RL_BLEND_CUSTOM: glBlendFunc(RLGL.State.glBlendSrcFactor, RLGL.State.glBlendDstFactor); glBlendEquation(RLGL.State.glBlendEquation); break; + default: break; + } + + RLGL.State.currentBlendMode = mode; + } +#endif +} + +// Set blending mode factor and equation +void rlSetBlendFactors(int glSrcFactor, int glDstFactor, int glEquation) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + RLGL.State.glBlendSrcFactor = glSrcFactor; + RLGL.State.glBlendDstFactor = glDstFactor; + RLGL.State.glBlendEquation = glEquation; +#endif +} + +//---------------------------------------------------------------------------------- +// Module Functions Definition - OpenGL Debug +//---------------------------------------------------------------------------------- +#if defined(RLGL_ENABLE_OPENGL_DEBUG_CONTEXT) && defined(GRAPHICS_API_OPENGL_43) +static void GLAPIENTRY rlDebugMessageCallback(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar *message, const void *userParam) +{ + // Ignore non-significant error/warning codes (NVidia drivers) + // NOTE: Here there are the details with a sample output: + // - #131169 - Framebuffer detailed info: The driver allocated storage for renderbuffer 2. (severity: low) + // - #131185 - Buffer detailed info: Buffer object 1 (bound to GL_ELEMENT_ARRAY_BUFFER_ARB, usage hint is GL_ENUM_88e4) + // will use VIDEO memory as the source for buffer object operations. (severity: low) + // - #131218 - Program/shader state performance warning: Vertex shader in program 7 is being recompiled based on GL state. (severity: medium) + // - #131204 - Texture state usage warning: The texture object (0) bound to texture image unit 0 does not have + // a defined base level and cannot be used for texture mapping. (severity: low) + if ((id == 131169) || (id == 131185) || (id == 131218) || (id == 131204)) return; + + const char *msgSource = NULL; + switch (source) + { + case GL_DEBUG_SOURCE_API: msgSource = "API"; break; + case GL_DEBUG_SOURCE_WINDOW_SYSTEM: msgSource = "WINDOW_SYSTEM"; break; + case GL_DEBUG_SOURCE_SHADER_COMPILER: msgSource = "SHADER_COMPILER"; break; + case GL_DEBUG_SOURCE_THIRD_PARTY: msgSource = "THIRD_PARTY"; break; + case GL_DEBUG_SOURCE_APPLICATION: msgSource = "APPLICATION"; break; + case GL_DEBUG_SOURCE_OTHER: msgSource = "OTHER"; break; + default: break; + } + + const char *msgType = NULL; + switch (type) + { + case GL_DEBUG_TYPE_ERROR: msgType = "ERROR"; break; + case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR: msgType = "DEPRECATED_BEHAVIOR"; break; + case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR: msgType = "UNDEFINED_BEHAVIOR"; break; + case GL_DEBUG_TYPE_PORTABILITY: msgType = "PORTABILITY"; break; + case GL_DEBUG_TYPE_PERFORMANCE: msgType = "PERFORMANCE"; break; + case GL_DEBUG_TYPE_MARKER: msgType = "MARKER"; break; + case GL_DEBUG_TYPE_PUSH_GROUP: msgType = "PUSH_GROUP"; break; + case GL_DEBUG_TYPE_POP_GROUP: msgType = "POP_GROUP"; break; + case GL_DEBUG_TYPE_OTHER: msgType = "OTHER"; break; + default: break; + } + + const char *msgSeverity = "DEFAULT"; + switch (severity) + { + case GL_DEBUG_SEVERITY_LOW: msgSeverity = "LOW"; break; + case GL_DEBUG_SEVERITY_MEDIUM: msgSeverity = "MEDIUM"; break; + case GL_DEBUG_SEVERITY_HIGH: msgSeverity = "HIGH"; break; + case GL_DEBUG_SEVERITY_NOTIFICATION: msgSeverity = "NOTIFICATION"; break; + default: break; + } + + TRACELOG(LOG_WARNING, "GL: OpenGL debug message: %s", message); + TRACELOG(LOG_WARNING, " > Type: %s", msgType); + TRACELOG(LOG_WARNING, " > Source = %s", msgSource); + TRACELOG(LOG_WARNING, " > Severity = %s", msgSeverity); +} +#endif + +//---------------------------------------------------------------------------------- +// Module Functions Definition - rlgl functionality +//---------------------------------------------------------------------------------- + +// Initialize rlgl: OpenGL extensions, default buffers/shaders/textures, OpenGL states +void rlglInit(int width, int height) +{ + // Enable OpenGL debug context if required +#if defined(RLGL_ENABLE_OPENGL_DEBUG_CONTEXT) && defined(GRAPHICS_API_OPENGL_43) + if ((glDebugMessageCallback != NULL) && (glDebugMessageControl != NULL)) + { + glDebugMessageCallback(rlDebugMessageCallback, 0); + // glDebugMessageControl(GL_DEBUG_SOURCE_API, GL_DEBUG_TYPE_ERROR, GL_DEBUG_SEVERITY_HIGH, 0, 0, GL_TRUE); // TODO: Filter message + + // Debug context options: + // - GL_DEBUG_OUTPUT - Faster version but not useful for breakpoints + // - GL_DEBUG_OUTPUT_SYNCHRONUS - Callback is in sync with errors, so a breakpoint can be placed on the callback in order to get a stacktrace for the GL error + glEnable(GL_DEBUG_OUTPUT); + glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS); + } +#endif + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + // Init default white texture + unsigned char pixels[4] = { 255, 255, 255, 255 }; // 1 pixel RGBA (4 bytes) + RLGL.State.defaultTextureId = rlLoadTexture(pixels, 1, 1, RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8A8, 1); + + if (RLGL.State.defaultTextureId != 0) TRACELOG(RL_LOG_INFO, "TEXTURE: [ID %i] Default texture loaded successfully", RLGL.State.defaultTextureId); + else TRACELOG(RL_LOG_WARNING, "TEXTURE: Failed to load default texture"); + + // Init default Shader (customized for GL 3.3 and ES2) + // Loaded: RLGL.State.defaultShaderId + RLGL.State.defaultShaderLocs + rlLoadShaderDefault(); + RLGL.State.currentShaderId = RLGL.State.defaultShaderId; + RLGL.State.currentShaderLocs = RLGL.State.defaultShaderLocs; + + // Init default vertex arrays buffers + RLGL.defaultBatch = rlLoadRenderBatch(RL_DEFAULT_BATCH_BUFFERS, RL_DEFAULT_BATCH_BUFFER_ELEMENTS); + RLGL.currentBatch = &RLGL.defaultBatch; + + // Init stack matrices (emulating OpenGL 1.1) + for (int i = 0; i < RL_MAX_MATRIX_STACK_SIZE; i++) RLGL.State.stack[i] = rlMatrixIdentity(); + + // Init internal matrices + RLGL.State.transform = rlMatrixIdentity(); + RLGL.State.projection = rlMatrixIdentity(); + RLGL.State.modelview = rlMatrixIdentity(); + RLGL.State.currentMatrix = &RLGL.State.modelview; +#endif // GRAPHICS_API_OPENGL_33 || GRAPHICS_API_OPENGL_ES2 + + // Initialize OpenGL default states + //---------------------------------------------------------- + // Init state: Depth test + glDepthFunc(GL_LEQUAL); // Type of depth testing to apply + glDisable(GL_DEPTH_TEST); // Disable depth testing for 2D (only used for 3D) + + // Init state: Blending mode + glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); // Color blending function (how colors are mixed) + glEnable(GL_BLEND); // Enable color blending (required to work with transparencies) + + // Init state: Culling + // NOTE: All shapes/models triangles are drawn CCW + glCullFace(GL_BACK); // Cull the back face (default) + glFrontFace(GL_CCW); // Front face are defined counter clockwise (default) + glEnable(GL_CULL_FACE); // Enable backface culling + + // Init state: Cubemap seamless +#if defined(GRAPHICS_API_OPENGL_33) + glEnable(GL_TEXTURE_CUBE_MAP_SEAMLESS); // Seamless cubemaps (not supported on OpenGL ES 2.0) +#endif + +#if defined(GRAPHICS_API_OPENGL_11) + // Init state: Color hints (deprecated in OpenGL 3.0+) + glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); // Improve quality of color and texture coordinate interpolation + glShadeModel(GL_SMOOTH); // Smooth shading between vertex (vertex colors interpolation) +#endif + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + // Store screen size into global variables + RLGL.State.framebufferWidth = width; + RLGL.State.framebufferHeight = height; + + TRACELOG(RL_LOG_INFO, "RLGL: Default OpenGL state initialized successfully"); + //---------------------------------------------------------- +#endif + + // Init state: Color/Depth buffers clear + glClearColor(0.0f, 0.0f, 0.0f, 1.0f); // Set clear color (black) + glClearDepth(1.0f); // Set clear depth value (default) + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear color and depth buffers (depth buffer required for 3D) +} + +// Vertex Buffer Object deinitialization (memory free) +void rlglClose(void) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + rlUnloadRenderBatch(RLGL.defaultBatch); + + rlUnloadShaderDefault(); // Unload default shader + + glDeleteTextures(1, &RLGL.State.defaultTextureId); // Unload default texture + TRACELOG(RL_LOG_INFO, "TEXTURE: [ID %i] Default texture unloaded successfully", RLGL.State.defaultTextureId); +#endif +} + +// Load OpenGL extensions +// NOTE: External loader function must be provided +void rlLoadExtensions(void *loader) +{ +#if defined(GRAPHICS_API_OPENGL_33) // Also defined for GRAPHICS_API_OPENGL_21 + // NOTE: glad is generated and contains only required OpenGL 3.3 Core extensions (and lower versions) + #if !defined(__APPLE__) + if (gladLoadGL((GLADloadfunc)loader) == 0) TRACELOG(RL_LOG_WARNING, "GLAD: Cannot load OpenGL extensions"); + else TRACELOG(RL_LOG_INFO, "GLAD: OpenGL extensions loaded successfully"); + #endif + + // Get number of supported extensions + GLint numExt = 0; + glGetIntegerv(GL_NUM_EXTENSIONS, &numExt); + TRACELOG(RL_LOG_INFO, "GL: Supported extensions count: %i", numExt); + +#if defined(RLGL_SHOW_GL_DETAILS_INFO) + // Get supported extensions list + // WARNING: glGetStringi() not available on OpenGL 2.1 + TRACELOG(RL_LOG_INFO, "GL: OpenGL extensions:"); + for (int i = 0; i < numExt; i++) TRACELOG(RL_LOG_INFO, " %s", glGetStringi(GL_EXTENSIONS, i)); +#endif + + // Register supported extensions flags + // OpenGL 3.3 extensions supported by default (core) + RLGL.ExtSupported.vao = true; + RLGL.ExtSupported.instancing = true; + RLGL.ExtSupported.texNPOT = true; + RLGL.ExtSupported.texFloat32 = true; + RLGL.ExtSupported.texDepth = true; + RLGL.ExtSupported.maxDepthBits = 32; + RLGL.ExtSupported.texAnisoFilter = true; + RLGL.ExtSupported.texMirrorClamp = true; + #if defined(GRAPHICS_API_OPENGL_43) + if (GLAD_GL_ARB_compute_shader) RLGL.ExtSupported.computeShader = true; + if (GLAD_GL_ARB_shader_storage_buffer_object) RLGL.ExtSupported.ssbo = true; + #endif + #if !defined(__APPLE__) + // NOTE: With GLAD, we can check if an extension is supported using the GLAD_GL_xxx booleans + if (GLAD_GL_EXT_texture_compression_s3tc) RLGL.ExtSupported.texCompDXT = true; // Texture compression: DXT + if (GLAD_GL_ARB_ES3_compatibility) RLGL.ExtSupported.texCompETC2 = true; // Texture compression: ETC2/EAC + #endif +#endif // GRAPHICS_API_OPENGL_33 + +#if defined(GRAPHICS_API_OPENGL_ES2) + // Get supported extensions list + GLint numExt = 0; + const char **extList = RL_MALLOC(512*sizeof(const char *)); // Allocate 512 strings pointers (2 KB) + const char *extensions = (const char *)glGetString(GL_EXTENSIONS); // One big const string + + // NOTE: We have to duplicate string because glGetString() returns a const string + int size = strlen(extensions) + 1; // Get extensions string size in bytes + char *extensionsDup = (char *)RL_CALLOC(size, sizeof(char)); + strcpy(extensionsDup, extensions); + extList[numExt] = extensionsDup; + + for (int i = 0; i < size; i++) + { + if (extensionsDup[i] == ' ') + { + extensionsDup[i] = '\0'; + numExt++; + extList[numExt] = &extensionsDup[i + 1]; + } + } + + TRACELOG(RL_LOG_INFO, "GL: Supported extensions count: %i", numExt); + +#if defined(RLGL_SHOW_GL_DETAILS_INFO) + TRACELOG(RL_LOG_INFO, "GL: OpenGL extensions:"); + for (int i = 0; i < numExt; i++) TRACELOG(RL_LOG_INFO, " %s", extList[i]); +#endif + + // Check required extensions + for (int i = 0; i < numExt; i++) + { + // Check VAO support + // NOTE: Only check on OpenGL ES, OpenGL 3.3 has VAO support as core feature + if (strcmp(extList[i], (const char *)"GL_OES_vertex_array_object") == 0) + { + // The extension is supported by our hardware and driver, try to get related functions pointers + // NOTE: emscripten does not support VAOs natively, it uses emulation and it reduces overall performance... + glGenVertexArrays = (PFNGLGENVERTEXARRAYSOESPROC)((rlglLoadProc)loader)("glGenVertexArraysOES"); + glBindVertexArray = (PFNGLBINDVERTEXARRAYOESPROC)((rlglLoadProc)loader)("glBindVertexArrayOES"); + glDeleteVertexArrays = (PFNGLDELETEVERTEXARRAYSOESPROC)((rlglLoadProc)loader)("glDeleteVertexArraysOES"); + //glIsVertexArray = (PFNGLISVERTEXARRAYOESPROC)loader("glIsVertexArrayOES"); // NOTE: Fails in WebGL, omitted + + if ((glGenVertexArrays != NULL) && (glBindVertexArray != NULL) && (glDeleteVertexArrays != NULL)) RLGL.ExtSupported.vao = true; + } + + // Check instanced rendering support + if (strcmp(extList[i], (const char *)"GL_ANGLE_instanced_arrays") == 0) // Web ANGLE + { + glDrawArraysInstanced = (PFNGLDRAWARRAYSINSTANCEDEXTPROC)((rlglLoadProc)loader)("glDrawArraysInstancedANGLE"); + glDrawElementsInstanced = (PFNGLDRAWELEMENTSINSTANCEDEXTPROC)((rlglLoadProc)loader)("glDrawElementsInstancedANGLE"); + glVertexAttribDivisor = (PFNGLVERTEXATTRIBDIVISOREXTPROC)((rlglLoadProc)loader)("glVertexAttribDivisorANGLE"); + + if ((glDrawArraysInstanced != NULL) && (glDrawElementsInstanced != NULL) && (glVertexAttribDivisor != NULL)) RLGL.ExtSupported.instancing = true; + } + else + { + if ((strcmp(extList[i], (const char *)"GL_EXT_draw_instanced") == 0) && // Standard EXT + (strcmp(extList[i], (const char *)"GL_EXT_instanced_arrays") == 0)) + { + glDrawArraysInstanced = (PFNGLDRAWARRAYSINSTANCEDEXTPROC)((rlglLoadProc)loader)("glDrawArraysInstancedEXT"); + glDrawElementsInstanced = (PFNGLDRAWELEMENTSINSTANCEDEXTPROC)((rlglLoadProc)loader)("glDrawElementsInstancedEXT"); + glVertexAttribDivisor = (PFNGLVERTEXATTRIBDIVISOREXTPROC)((rlglLoadProc)loader)("glVertexAttribDivisorEXT"); + + if ((glDrawArraysInstanced != NULL) && (glDrawElementsInstanced != NULL) && (glVertexAttribDivisor != NULL)) RLGL.ExtSupported.instancing = true; + } + } + + // Check NPOT textures support + // NOTE: Only check on OpenGL ES, OpenGL 3.3 has NPOT textures full support as core feature + if (strcmp(extList[i], (const char *)"GL_OES_texture_npot") == 0) RLGL.ExtSupported.texNPOT = true; + + // Check texture float support + if (strcmp(extList[i], (const char *)"GL_OES_texture_float") == 0) RLGL.ExtSupported.texFloat32 = true; + + // Check depth texture support + if ((strcmp(extList[i], (const char *)"GL_OES_depth_texture") == 0) || + (strcmp(extList[i], (const char *)"GL_WEBGL_depth_texture") == 0)) RLGL.ExtSupported.texDepth = true; + + if (strcmp(extList[i], (const char *)"GL_OES_depth24") == 0) RLGL.ExtSupported.maxDepthBits = 24; + if (strcmp(extList[i], (const char *)"GL_OES_depth32") == 0) RLGL.ExtSupported.maxDepthBits = 32; + + // Check texture compression support: DXT + if ((strcmp(extList[i], (const char *)"GL_EXT_texture_compression_s3tc") == 0) || + (strcmp(extList[i], (const char *)"GL_WEBGL_compressed_texture_s3tc") == 0) || + (strcmp(extList[i], (const char *)"GL_WEBKIT_WEBGL_compressed_texture_s3tc") == 0)) RLGL.ExtSupported.texCompDXT = true; + + // Check texture compression support: ETC1 + if ((strcmp(extList[i], (const char *)"GL_OES_compressed_ETC1_RGB8_texture") == 0) || + (strcmp(extList[i], (const char *)"GL_WEBGL_compressed_texture_etc1") == 0)) RLGL.ExtSupported.texCompETC1 = true; + + // Check texture compression support: ETC2/EAC + if (strcmp(extList[i], (const char *)"GL_ARB_ES3_compatibility") == 0) RLGL.ExtSupported.texCompETC2 = true; + + // Check texture compression support: PVR + if (strcmp(extList[i], (const char *)"GL_IMG_texture_compression_pvrtc") == 0) RLGL.ExtSupported.texCompPVRT = true; + + // Check texture compression support: ASTC + if (strcmp(extList[i], (const char *)"GL_KHR_texture_compression_astc_hdr") == 0) RLGL.ExtSupported.texCompASTC = true; + + // Check anisotropic texture filter support + if (strcmp(extList[i], (const char *)"GL_EXT_texture_filter_anisotropic") == 0) RLGL.ExtSupported.texAnisoFilter = true; + + // Check clamp mirror wrap mode support + if (strcmp(extList[i], (const char *)"GL_EXT_texture_mirror_clamp") == 0) RLGL.ExtSupported.texMirrorClamp = true; + } + + // Free extensions pointers + RL_FREE(extList); + RL_FREE(extensionsDup); // Duplicated string must be deallocated +#endif // GRAPHICS_API_OPENGL_ES2 + + // Check OpenGL information and capabilities + //------------------------------------------------------------------------------ + // Show current OpenGL and GLSL version + TRACELOG(RL_LOG_INFO, "GL: OpenGL device information:"); + TRACELOG(RL_LOG_INFO, " > Vendor: %s", glGetString(GL_VENDOR)); + TRACELOG(RL_LOG_INFO, " > Renderer: %s", glGetString(GL_RENDERER)); + TRACELOG(RL_LOG_INFO, " > Version: %s", glGetString(GL_VERSION)); + TRACELOG(RL_LOG_INFO, " > GLSL: %s", glGetString(GL_SHADING_LANGUAGE_VERSION)); + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + // NOTE: Anisotropy levels capability is an extension + #ifndef GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT + #define GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT 0x84FF + #endif + glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &RLGL.ExtSupported.maxAnisotropyLevel); + +#if defined(RLGL_SHOW_GL_DETAILS_INFO) + // Show some OpenGL GPU capabilities + TRACELOG(RL_LOG_INFO, "GL: OpenGL capabilities:"); + GLint capability = 0; + glGetIntegerv(GL_MAX_TEXTURE_SIZE, &capability); + TRACELOG(RL_LOG_INFO, " GL_MAX_TEXTURE_SIZE: %i", capability); + glGetIntegerv(GL_MAX_CUBE_MAP_TEXTURE_SIZE, &capability); + TRACELOG(RL_LOG_INFO, " GL_MAX_CUBE_MAP_TEXTURE_SIZE: %i", capability); + glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS, &capability); + TRACELOG(RL_LOG_INFO, " GL_MAX_TEXTURE_IMAGE_UNITS: %i", capability); + glGetIntegerv(GL_MAX_VERTEX_ATTRIBS, &capability); + TRACELOG(RL_LOG_INFO, " GL_MAX_VERTEX_ATTRIBS: %i", capability); + #if !defined(GRAPHICS_API_OPENGL_ES2) + glGetIntegerv(GL_MAX_UNIFORM_BLOCK_SIZE, &capability); + TRACELOG(RL_LOG_INFO, " GL_MAX_UNIFORM_BLOCK_SIZE: %i", capability); + glGetIntegerv(GL_MAX_DRAW_BUFFERS, &capability); + TRACELOG(RL_LOG_INFO, " GL_MAX_DRAW_BUFFERS: %i", capability); + if (RLGL.ExtSupported.texAnisoFilter) TRACELOG(RL_LOG_INFO, " GL_MAX_TEXTURE_MAX_ANISOTROPY: %.0f", RLGL.ExtSupported.maxAnisotropyLevel); + #endif + glGetIntegerv(GL_NUM_COMPRESSED_TEXTURE_FORMATS, &capability); + TRACELOG(RL_LOG_INFO, " GL_NUM_COMPRESSED_TEXTURE_FORMATS: %i", capability); + GLint *compFormats = (GLint *)RL_CALLOC(capability, sizeof(GLint)); + glGetIntegerv(GL_COMPRESSED_TEXTURE_FORMATS, compFormats); + for (int i = 0; i < capability; i++) TRACELOG(RL_LOG_INFO, " %s", rlGetCompressedFormatName(compFormats[i])); + RL_FREE(compFormats); + + /* + // Following capabilities are only supported by OpenGL 4.3 or greater + glGetIntegerv(GL_MAX_VERTEX_ATTRIB_BINDINGS, &capability); + TRACELOG(RL_LOG_INFO, " GL_MAX_VERTEX_ATTRIB_BINDINGS: %i", capability); + glGetIntegerv(GL_MAX_UNIFORM_LOCATIONS, &capability); + TRACELOG(RL_LOG_INFO, " GL_MAX_UNIFORM_LOCATIONS: %i", capability); + */ +#else // RLGL_SHOW_GL_DETAILS_INFO + + // Show some basic info about GL supported features + #if defined(GRAPHICS_API_OPENGL_ES2) + if (RLGL.ExtSupported.vao) TRACELOG(RL_LOG_INFO, "GL: VAO extension detected, VAO functions loaded successfully"); + else TRACELOG(RL_LOG_WARNING, "GL: VAO extension not found, VAO not supported"); + if (RLGL.ExtSupported.texNPOT) TRACELOG(RL_LOG_INFO, "GL: NPOT textures extension detected, full NPOT textures supported"); + else TRACELOG(RL_LOG_WARNING, "GL: NPOT textures extension not found, limited NPOT support (no-mipmaps, no-repeat)"); + #endif + if (RLGL.ExtSupported.texCompDXT) TRACELOG(RL_LOG_INFO, "GL: DXT compressed textures supported"); + if (RLGL.ExtSupported.texCompETC1) TRACELOG(RL_LOG_INFO, "GL: ETC1 compressed textures supported"); + if (RLGL.ExtSupported.texCompETC2) TRACELOG(RL_LOG_INFO, "GL: ETC2/EAC compressed textures supported"); + if (RLGL.ExtSupported.texCompPVRT) TRACELOG(RL_LOG_INFO, "GL: PVRT compressed textures supported"); + if (RLGL.ExtSupported.texCompASTC) TRACELOG(RL_LOG_INFO, "GL: ASTC compressed textures supported"); + if (RLGL.ExtSupported.computeShader) TRACELOG(RL_LOG_INFO, "GL: Compute shaders supported"); + if (RLGL.ExtSupported.ssbo) TRACELOG(RL_LOG_INFO, "GL: Shader storage buffer objects supported"); +#endif // RLGL_SHOW_GL_DETAILS_INFO + +#endif // GRAPHICS_API_OPENGL_33 || GRAPHICS_API_OPENGL_ES2 +} + +// Get current OpenGL version +int rlGetVersion(void) +{ + int glVersion = 0; +#if defined(GRAPHICS_API_OPENGL_11) + glVersion = OPENGL_11; +#endif +#if defined(GRAPHICS_API_OPENGL_21) + #if defined(__APPLE__) + glVersion = OPENGL_33; // NOTE: Force OpenGL 3.3 on OSX + #else + glVersion = OPENGL_21; + #endif +#elif defined(GRAPHICS_API_OPENGL_33) + glVersion = OPENGL_33; +#endif +#if defined(GRAPHICS_API_OPENGL_43) + glVersion = OPENGL_43; +#endif +#if defined(GRAPHICS_API_OPENGL_ES2) + glVersion = OPENGL_ES_20; +#endif + return glVersion; +} + +// Get default framebuffer width +int rlGetFramebufferWidth(void) +{ + int width = 0; +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + width = RLGL.State.framebufferWidth; +#endif + return width; +} + +// Get default framebuffer height +int rlGetFramebufferHeight(void) +{ + int height = 0; +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + height = RLGL.State.framebufferHeight; +#endif + return height; +} + +// Get default internal texture (white texture) +// NOTE: Default texture is a 1x1 pixel UNCOMPRESSED_R8G8B8A8 +unsigned int rlGetTextureIdDefault(void) +{ + unsigned int id = 0; +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + id = RLGL.State.defaultTextureId; +#endif + return id; +} + +// Get default shader id +unsigned int rlGetShaderIdDefault(void) +{ + unsigned int id = 0; +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + id = RLGL.State.defaultShaderId; +#endif + return id; +} + +// Get default shader locs +int *rlGetShaderLocsDefault(void) +{ + int *locs = NULL; +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + locs = RLGL.State.defaultShaderLocs; +#endif + return locs; +} + +// Render batch management +//------------------------------------------------------------------------------------------------ +// Load render batch +rlRenderBatch rlLoadRenderBatch(int numBuffers, int bufferElements) +{ + rlRenderBatch batch = { 0 }; + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + // Initialize CPU (RAM) vertex buffers (position, texcoord, color data and indexes) + //-------------------------------------------------------------------------------------------- + batch.vertexBuffer = (rlVertexBuffer *)RL_MALLOC(numBuffers*sizeof(rlVertexBuffer)); + + for (int i = 0; i < numBuffers; i++) + { + batch.vertexBuffer[i].elementCount = bufferElements; + + batch.vertexBuffer[i].vertices = (float *)RL_MALLOC(bufferElements*3*4*sizeof(float)); // 3 float by vertex, 4 vertex by quad + batch.vertexBuffer[i].texcoords = (float *)RL_MALLOC(bufferElements*2*4*sizeof(float)); // 2 float by texcoord, 4 texcoord by quad + batch.vertexBuffer[i].colors = (unsigned char *)RL_MALLOC(bufferElements*4*4*sizeof(unsigned char)); // 4 float by color, 4 colors by quad +#if defined(GRAPHICS_API_OPENGL_33) + batch.vertexBuffer[i].indices = (unsigned int *)RL_MALLOC(bufferElements*6*sizeof(unsigned int)); // 6 int by quad (indices) +#endif +#if defined(GRAPHICS_API_OPENGL_ES2) + batch.vertexBuffer[i].indices = (unsigned short *)RL_MALLOC(bufferElements*6*sizeof(unsigned short)); // 6 int by quad (indices) +#endif + + for (int j = 0; j < (3*4*bufferElements); j++) batch.vertexBuffer[i].vertices[j] = 0.0f; + for (int j = 0; j < (2*4*bufferElements); j++) batch.vertexBuffer[i].texcoords[j] = 0.0f; + for (int j = 0; j < (4*4*bufferElements); j++) batch.vertexBuffer[i].colors[j] = 0; + + int k = 0; + + // Indices can be initialized right now + for (int j = 0; j < (6*bufferElements); j += 6) + { + batch.vertexBuffer[i].indices[j] = 4*k; + batch.vertexBuffer[i].indices[j + 1] = 4*k + 1; + batch.vertexBuffer[i].indices[j + 2] = 4*k + 2; + batch.vertexBuffer[i].indices[j + 3] = 4*k; + batch.vertexBuffer[i].indices[j + 4] = 4*k + 2; + batch.vertexBuffer[i].indices[j + 5] = 4*k + 3; + + k++; + } + + RLGL.State.vertexCounter = 0; + } + + TRACELOG(RL_LOG_INFO, "RLGL: Render batch vertex buffers loaded successfully in RAM (CPU)"); + //-------------------------------------------------------------------------------------------- + + // Upload to GPU (VRAM) vertex data and initialize VAOs/VBOs + //-------------------------------------------------------------------------------------------- + for (int i = 0; i < numBuffers; i++) + { + if (RLGL.ExtSupported.vao) + { + // Initialize Quads VAO + glGenVertexArrays(1, &batch.vertexBuffer[i].vaoId); + glBindVertexArray(batch.vertexBuffer[i].vaoId); + } + + // Quads - Vertex buffers binding and attributes enable + // Vertex position buffer (shader-location = 0) + glGenBuffers(1, &batch.vertexBuffer[i].vboId[0]); + glBindBuffer(GL_ARRAY_BUFFER, batch.vertexBuffer[i].vboId[0]); + glBufferData(GL_ARRAY_BUFFER, bufferElements*3*4*sizeof(float), batch.vertexBuffer[i].vertices, GL_DYNAMIC_DRAW); + glEnableVertexAttribArray(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_POSITION]); + glVertexAttribPointer(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_POSITION], 3, GL_FLOAT, 0, 0, 0); + + // Vertex texcoord buffer (shader-location = 1) + glGenBuffers(1, &batch.vertexBuffer[i].vboId[1]); + glBindBuffer(GL_ARRAY_BUFFER, batch.vertexBuffer[i].vboId[1]); + glBufferData(GL_ARRAY_BUFFER, bufferElements*2*4*sizeof(float), batch.vertexBuffer[i].texcoords, GL_DYNAMIC_DRAW); + glEnableVertexAttribArray(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_TEXCOORD01]); + glVertexAttribPointer(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_TEXCOORD01], 2, GL_FLOAT, 0, 0, 0); + + // Vertex color buffer (shader-location = 3) + glGenBuffers(1, &batch.vertexBuffer[i].vboId[2]); + glBindBuffer(GL_ARRAY_BUFFER, batch.vertexBuffer[i].vboId[2]); + glBufferData(GL_ARRAY_BUFFER, bufferElements*4*4*sizeof(unsigned char), batch.vertexBuffer[i].colors, GL_DYNAMIC_DRAW); + glEnableVertexAttribArray(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_COLOR]); + glVertexAttribPointer(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_COLOR], 4, GL_UNSIGNED_BYTE, GL_TRUE, 0, 0); + + // Fill index buffer + glGenBuffers(1, &batch.vertexBuffer[i].vboId[3]); + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, batch.vertexBuffer[i].vboId[3]); +#if defined(GRAPHICS_API_OPENGL_33) + glBufferData(GL_ELEMENT_ARRAY_BUFFER, bufferElements*6*sizeof(int), batch.vertexBuffer[i].indices, GL_STATIC_DRAW); +#endif +#if defined(GRAPHICS_API_OPENGL_ES2) + glBufferData(GL_ELEMENT_ARRAY_BUFFER, bufferElements*6*sizeof(short), batch.vertexBuffer[i].indices, GL_STATIC_DRAW); +#endif + } + + TRACELOG(RL_LOG_INFO, "RLGL: Render batch vertex buffers loaded successfully in VRAM (GPU)"); + + // Unbind the current VAO + if (RLGL.ExtSupported.vao) glBindVertexArray(0); + //-------------------------------------------------------------------------------------------- + + // Init draw calls tracking system + //-------------------------------------------------------------------------------------------- + batch.draws = (rlDrawCall *)RL_MALLOC(RL_DEFAULT_BATCH_DRAWCALLS*sizeof(rlDrawCall)); + + for (int i = 0; i < RL_DEFAULT_BATCH_DRAWCALLS; i++) + { + batch.draws[i].mode = RL_QUADS; + batch.draws[i].vertexCount = 0; + batch.draws[i].vertexAlignment = 0; + //batch.draws[i].vaoId = 0; + //batch.draws[i].shaderId = 0; + batch.draws[i].textureId = RLGL.State.defaultTextureId; + //batch.draws[i].RLGL.State.projection = rlMatrixIdentity(); + //batch.draws[i].RLGL.State.modelview = rlMatrixIdentity(); + } + + batch.bufferCount = numBuffers; // Record buffer count + batch.drawCounter = 1; // Reset draws counter + batch.currentDepth = -1.0f; // Reset depth value + //-------------------------------------------------------------------------------------------- +#endif + + return batch; +} + +// Unload default internal buffers vertex data from CPU and GPU +void rlUnloadRenderBatch(rlRenderBatch batch) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + // Unbind everything + glBindBuffer(GL_ARRAY_BUFFER, 0); + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); + + // Unload all vertex buffers data + for (int i = 0; i < batch.bufferCount; i++) + { + // Unbind VAO attribs data + if (RLGL.ExtSupported.vao) + { + glBindVertexArray(batch.vertexBuffer[i].vaoId); + glDisableVertexAttribArray(0); + glDisableVertexAttribArray(1); + glDisableVertexAttribArray(2); + glDisableVertexAttribArray(3); + glBindVertexArray(0); + } + + // Delete VBOs from GPU (VRAM) + glDeleteBuffers(1, &batch.vertexBuffer[i].vboId[0]); + glDeleteBuffers(1, &batch.vertexBuffer[i].vboId[1]); + glDeleteBuffers(1, &batch.vertexBuffer[i].vboId[2]); + glDeleteBuffers(1, &batch.vertexBuffer[i].vboId[3]); + + // Delete VAOs from GPU (VRAM) + if (RLGL.ExtSupported.vao) glDeleteVertexArrays(1, &batch.vertexBuffer[i].vaoId); + + // Free vertex arrays memory from CPU (RAM) + RL_FREE(batch.vertexBuffer[i].vertices); + RL_FREE(batch.vertexBuffer[i].texcoords); + RL_FREE(batch.vertexBuffer[i].colors); + RL_FREE(batch.vertexBuffer[i].indices); + } + + // Unload arrays + RL_FREE(batch.vertexBuffer); + RL_FREE(batch.draws); +#endif +} + +// Draw render batch +// NOTE: We require a pointer to reset batch and increase current buffer (multi-buffer) +void rlDrawRenderBatch(rlRenderBatch *batch) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + // Update batch vertex buffers + //------------------------------------------------------------------------------------------------------------ + // NOTE: If there is not vertex data, buffers doesn't need to be updated (vertexCount > 0) + // TODO: If no data changed on the CPU arrays --> No need to re-update GPU arrays (change flag required) + if (RLGL.State.vertexCounter > 0) + { + // Activate elements VAO + if (RLGL.ExtSupported.vao) glBindVertexArray(batch->vertexBuffer[batch->currentBuffer].vaoId); + + // Vertex positions buffer + glBindBuffer(GL_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[0]); + glBufferSubData(GL_ARRAY_BUFFER, 0, RLGL.State.vertexCounter*3*sizeof(float), batch->vertexBuffer[batch->currentBuffer].vertices); + //glBufferData(GL_ARRAY_BUFFER, sizeof(float)*3*4*batch->vertexBuffer[batch->currentBuffer].elementCount, batch->vertexBuffer[batch->currentBuffer].vertices, GL_DYNAMIC_DRAW); // Update all buffer + + // Texture coordinates buffer + glBindBuffer(GL_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[1]); + glBufferSubData(GL_ARRAY_BUFFER, 0, RLGL.State.vertexCounter*2*sizeof(float), batch->vertexBuffer[batch->currentBuffer].texcoords); + //glBufferData(GL_ARRAY_BUFFER, sizeof(float)*2*4*batch->vertexBuffer[batch->currentBuffer].elementCount, batch->vertexBuffer[batch->currentBuffer].texcoords, GL_DYNAMIC_DRAW); // Update all buffer + + // Colors buffer + glBindBuffer(GL_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[2]); + glBufferSubData(GL_ARRAY_BUFFER, 0, RLGL.State.vertexCounter*4*sizeof(unsigned char), batch->vertexBuffer[batch->currentBuffer].colors); + //glBufferData(GL_ARRAY_BUFFER, sizeof(float)*4*4*batch->vertexBuffer[batch->currentBuffer].elementCount, batch->vertexBuffer[batch->currentBuffer].colors, GL_DYNAMIC_DRAW); // Update all buffer + + // NOTE: glMapBuffer() causes sync issue. + // If GPU is working with this buffer, glMapBuffer() will wait(stall) until GPU to finish its job. + // To avoid waiting (idle), you can call first glBufferData() with NULL pointer before glMapBuffer(). + // If you do that, the previous data in PBO will be discarded and glMapBuffer() returns a new + // allocated pointer immediately even if GPU is still working with the previous data. + + // Another option: map the buffer object into client's memory + // Probably this code could be moved somewhere else... + // batch->vertexBuffer[batch->currentBuffer].vertices = (float *)glMapBuffer(GL_ARRAY_BUFFER, GL_READ_WRITE); + // if (batch->vertexBuffer[batch->currentBuffer].vertices) + // { + // Update vertex data + // } + // glUnmapBuffer(GL_ARRAY_BUFFER); + + // Unbind the current VAO + if (RLGL.ExtSupported.vao) glBindVertexArray(0); + } + //------------------------------------------------------------------------------------------------------------ + + // Draw batch vertex buffers (considering VR stereo if required) + //------------------------------------------------------------------------------------------------------------ + Matrix matProjection = RLGL.State.projection; + Matrix matModelView = RLGL.State.modelview; + + int eyeCount = 1; + if (RLGL.State.stereoRender) eyeCount = 2; + + for (int eye = 0; eye < eyeCount; eye++) + { + if (eyeCount == 2) + { + // Setup current eye viewport (half screen width) + rlViewport(eye*RLGL.State.framebufferWidth/2, 0, RLGL.State.framebufferWidth/2, RLGL.State.framebufferHeight); + + // Set current eye view offset to modelview matrix + rlSetMatrixModelview(rlMatrixMultiply(matModelView, RLGL.State.viewOffsetStereo[eye])); + // Set current eye projection matrix + rlSetMatrixProjection(RLGL.State.projectionStereo[eye]); + } + + // Draw buffers + if (RLGL.State.vertexCounter > 0) + { + // Set current shader and upload current MVP matrix + glUseProgram(RLGL.State.currentShaderId); + + // Create modelview-projection matrix and upload to shader + Matrix matMVP = rlMatrixMultiply(RLGL.State.modelview, RLGL.State.projection); + float matMVPfloat[16] = { + matMVP.m0, matMVP.m1, matMVP.m2, matMVP.m3, + matMVP.m4, matMVP.m5, matMVP.m6, matMVP.m7, + matMVP.m8, matMVP.m9, matMVP.m10, matMVP.m11, + matMVP.m12, matMVP.m13, matMVP.m14, matMVP.m15 + }; + glUniformMatrix4fv(RLGL.State.currentShaderLocs[RL_SHADER_LOC_MATRIX_MVP], 1, false, matMVPfloat); + + if (RLGL.ExtSupported.vao) glBindVertexArray(batch->vertexBuffer[batch->currentBuffer].vaoId); + else + { + // Bind vertex attrib: position (shader-location = 0) + glBindBuffer(GL_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[0]); + glVertexAttribPointer(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_POSITION], 3, GL_FLOAT, 0, 0, 0); + glEnableVertexAttribArray(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_POSITION]); + + // Bind vertex attrib: texcoord (shader-location = 1) + glBindBuffer(GL_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[1]); + glVertexAttribPointer(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_TEXCOORD01], 2, GL_FLOAT, 0, 0, 0); + glEnableVertexAttribArray(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_TEXCOORD01]); + + // Bind vertex attrib: color (shader-location = 3) + glBindBuffer(GL_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[2]); + glVertexAttribPointer(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_COLOR], 4, GL_UNSIGNED_BYTE, GL_TRUE, 0, 0); + glEnableVertexAttribArray(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_COLOR]); + + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[3]); + } + + // Setup some default shader values + glUniform4f(RLGL.State.currentShaderLocs[RL_SHADER_LOC_COLOR_DIFFUSE], 1.0f, 1.0f, 1.0f, 1.0f); + glUniform1i(RLGL.State.currentShaderLocs[RL_SHADER_LOC_MAP_DIFFUSE], 0); // Active default sampler2D: texture0 + + // Activate additional sampler textures + // Those additional textures will be common for all draw calls of the batch + for (int i = 0; i < RL_DEFAULT_BATCH_MAX_TEXTURE_UNITS; i++) + { + if (RLGL.State.activeTextureId[i] > 0) + { + glActiveTexture(GL_TEXTURE0 + 1 + i); + glBindTexture(GL_TEXTURE_2D, RLGL.State.activeTextureId[i]); + } + } + + // Activate default sampler2D texture0 (one texture is always active for default batch shader) + // NOTE: Batch system accumulates calls by texture0 changes, additional textures are enabled for all the draw calls + glActiveTexture(GL_TEXTURE0); + + for (int i = 0, vertexOffset = 0; i < batch->drawCounter; i++) + { + // Bind current draw call texture, activated as GL_TEXTURE0 and binded to sampler2D texture0 by default + glBindTexture(GL_TEXTURE_2D, batch->draws[i].textureId); + + if ((batch->draws[i].mode == RL_LINES) || (batch->draws[i].mode == RL_TRIANGLES)) glDrawArrays(batch->draws[i].mode, vertexOffset, batch->draws[i].vertexCount); + else + { +#if defined(GRAPHICS_API_OPENGL_33) + // We need to define the number of indices to be processed: elementCount*6 + // NOTE: The final parameter tells the GPU the offset in bytes from the + // start of the index buffer to the location of the first index to process + glDrawElements(GL_TRIANGLES, batch->draws[i].vertexCount/4*6, GL_UNSIGNED_INT, (GLvoid *)(vertexOffset/4*6*sizeof(GLuint))); +#endif +#if defined(GRAPHICS_API_OPENGL_ES2) + glDrawElements(GL_TRIANGLES, batch->draws[i].vertexCount/4*6, GL_UNSIGNED_SHORT, (GLvoid *)(vertexOffset/4*6*sizeof(GLushort))); +#endif + } + + vertexOffset += (batch->draws[i].vertexCount + batch->draws[i].vertexAlignment); + } + + if (!RLGL.ExtSupported.vao) + { + glBindBuffer(GL_ARRAY_BUFFER, 0); + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); + } + + glBindTexture(GL_TEXTURE_2D, 0); // Unbind textures + } + + if (RLGL.ExtSupported.vao) glBindVertexArray(0); // Unbind VAO + + glUseProgram(0); // Unbind shader program + } + //------------------------------------------------------------------------------------------------------------ + + // Reset batch buffers + //------------------------------------------------------------------------------------------------------------ + // Reset vertex counter for next frame + RLGL.State.vertexCounter = 0; + + // Reset depth for next draw + batch->currentDepth = -1.0f; + + // Restore projection/modelview matrices + RLGL.State.projection = matProjection; + RLGL.State.modelview = matModelView; + + // Reset RLGL.currentBatch->draws array + for (int i = 0; i < RL_DEFAULT_BATCH_DRAWCALLS; i++) + { + batch->draws[i].mode = RL_QUADS; + batch->draws[i].vertexCount = 0; + batch->draws[i].textureId = RLGL.State.defaultTextureId; + } + + // Reset active texture units for next batch + for (int i = 0; i < RL_DEFAULT_BATCH_MAX_TEXTURE_UNITS; i++) RLGL.State.activeTextureId[i] = 0; + + // Reset draws counter to one draw for the batch + batch->drawCounter = 1; + //------------------------------------------------------------------------------------------------------------ + + // Change to next buffer in the list (in case of multi-buffering) + batch->currentBuffer++; + if (batch->currentBuffer >= batch->bufferCount) batch->currentBuffer = 0; +#endif +} + +// Set the active render batch for rlgl +void rlSetRenderBatchActive(rlRenderBatch *batch) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + rlDrawRenderBatch(RLGL.currentBatch); + + if (batch != NULL) RLGL.currentBatch = batch; + else RLGL.currentBatch = &RLGL.defaultBatch; +#endif +} + +// Update and draw internal render batch +void rlDrawRenderBatchActive(void) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + rlDrawRenderBatch(RLGL.currentBatch); // NOTE: Stereo rendering is checked inside +#endif +} + +// Check internal buffer overflow for a given number of vertex +// and force a rlRenderBatch draw call if required +bool rlCheckRenderBatchLimit(int vCount) +{ + bool overflow = false; + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + if ((RLGL.State.vertexCounter + vCount) >= + (RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].elementCount*4)) + { + int currentMode = RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode; + int currentTexture = RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].textureId; + + overflow = true; + rlDrawRenderBatch(RLGL.currentBatch); // NOTE: Stereo rendering is checked inside + + // Restore state of last batch so we can continue adding vertices + RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].mode = currentMode; + RLGL.currentBatch->draws[RLGL.currentBatch->drawCounter - 1].textureId = currentTexture; + } +#endif + + return overflow; +} + +// Textures data management +//----------------------------------------------------------------------------------------- +// Convert image data to OpenGL texture (returns OpenGL valid Id) +unsigned int rlLoadTexture(void *data, int width, int height, int format, int mipmapCount) +{ + glBindTexture(GL_TEXTURE_2D, 0); // Free any old binding + + unsigned int id = 0; + + // Check texture format support by OpenGL 1.1 (compressed textures not supported) +#if defined(GRAPHICS_API_OPENGL_11) + if (format >= RL_PIXELFORMAT_COMPRESSED_DXT1_RGB) + { + TRACELOG(RL_LOG_WARNING, "GL: OpenGL 1.1 does not support GPU compressed texture formats"); + return id; + } +#else + if ((!RLGL.ExtSupported.texCompDXT) && ((format == RL_PIXELFORMAT_COMPRESSED_DXT1_RGB) || (format == RL_PIXELFORMAT_COMPRESSED_DXT1_RGBA) || + (format == RL_PIXELFORMAT_COMPRESSED_DXT3_RGBA) || (format == RL_PIXELFORMAT_COMPRESSED_DXT5_RGBA))) + { + TRACELOG(RL_LOG_WARNING, "GL: DXT compressed texture format not supported"); + return id; + } +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + if ((!RLGL.ExtSupported.texCompETC1) && (format == RL_PIXELFORMAT_COMPRESSED_ETC1_RGB)) + { + TRACELOG(RL_LOG_WARNING, "GL: ETC1 compressed texture format not supported"); + return id; + } + + if ((!RLGL.ExtSupported.texCompETC2) && ((format == RL_PIXELFORMAT_COMPRESSED_ETC2_RGB) || (format == RL_PIXELFORMAT_COMPRESSED_ETC2_EAC_RGBA))) + { + TRACELOG(RL_LOG_WARNING, "GL: ETC2 compressed texture format not supported"); + return id; + } + + if ((!RLGL.ExtSupported.texCompPVRT) && ((format == RL_PIXELFORMAT_COMPRESSED_PVRT_RGB) || (format == RL_PIXELFORMAT_COMPRESSED_PVRT_RGBA))) + { + TRACELOG(RL_LOG_WARNING, "GL: PVRT compressed texture format not supported"); + return id; + } + + if ((!RLGL.ExtSupported.texCompASTC) && ((format == RL_PIXELFORMAT_COMPRESSED_ASTC_4x4_RGBA) || (format == RL_PIXELFORMAT_COMPRESSED_ASTC_8x8_RGBA))) + { + TRACELOG(RL_LOG_WARNING, "GL: ASTC compressed texture format not supported"); + return id; + } +#endif +#endif // GRAPHICS_API_OPENGL_11 + + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); + + glGenTextures(1, &id); // Generate texture id + + glBindTexture(GL_TEXTURE_2D, id); + + int mipWidth = width; + int mipHeight = height; + int mipOffset = 0; // Mipmap data offset + + // Load the different mipmap levels + for (int i = 0; i < mipmapCount; i++) + { + unsigned int mipSize = rlGetPixelDataSize(mipWidth, mipHeight, format); + + int glInternalFormat, glFormat, glType; + rlGetGlTextureFormats(format, &glInternalFormat, &glFormat, &glType); + + TRACELOGD("TEXTURE: Load mipmap level %i (%i x %i), size: %i, offset: %i", i, mipWidth, mipHeight, mipSize, mipOffset); + + if (glInternalFormat != -1) + { + if (format < RL_PIXELFORMAT_COMPRESSED_DXT1_RGB) glTexImage2D(GL_TEXTURE_2D, i, glInternalFormat, mipWidth, mipHeight, 0, glFormat, glType, (unsigned char *)data + mipOffset); +#if !defined(GRAPHICS_API_OPENGL_11) + else glCompressedTexImage2D(GL_TEXTURE_2D, i, glInternalFormat, mipWidth, mipHeight, 0, mipSize, (unsigned char *)data + mipOffset); +#endif + +#if defined(GRAPHICS_API_OPENGL_33) + if (format == RL_PIXELFORMAT_UNCOMPRESSED_GRAYSCALE) + { + GLint swizzleMask[] = { GL_RED, GL_RED, GL_RED, GL_ONE }; + glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_RGBA, swizzleMask); + } + else if (format == RL_PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA) + { +#if defined(GRAPHICS_API_OPENGL_21) + GLint swizzleMask[] = { GL_RED, GL_RED, GL_RED, GL_ALPHA }; +#elif defined(GRAPHICS_API_OPENGL_33) + GLint swizzleMask[] = { GL_RED, GL_RED, GL_RED, GL_GREEN }; +#endif + glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_RGBA, swizzleMask); + } +#endif + } + + mipWidth /= 2; + mipHeight /= 2; + mipOffset += mipSize; + + // Security check for NPOT textures + if (mipWidth < 1) mipWidth = 1; + if (mipHeight < 1) mipHeight = 1; + } + + // Texture parameters configuration + // NOTE: glTexParameteri does NOT affect texture uploading, just the way it's used +#if defined(GRAPHICS_API_OPENGL_ES2) + // NOTE: OpenGL ES 2.0 with no GL_OES_texture_npot support (i.e. WebGL) has limited NPOT support, so CLAMP_TO_EDGE must be used + if (RLGL.ExtSupported.texNPOT) + { + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); // Set texture to repeat on x-axis + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); // Set texture to repeat on y-axis + } + else + { + // NOTE: If using negative texture coordinates (LoadOBJ()), it does not work! + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); // Set texture to clamp on x-axis + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); // Set texture to clamp on y-axis + } +#else + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); // Set texture to repeat on x-axis + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); // Set texture to repeat on y-axis +#endif + + // Magnification and minification filters + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); // Alternative: GL_LINEAR + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); // Alternative: GL_LINEAR + +#if defined(GRAPHICS_API_OPENGL_33) + if (mipmapCount > 1) + { + // Activate Trilinear filtering if mipmaps are available + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); + } +#endif + + // At this point we have the texture loaded in GPU and texture parameters configured + + // NOTE: If mipmaps were not in data, they are not generated automatically + + // Unbind current texture + glBindTexture(GL_TEXTURE_2D, 0); + + if (id > 0) TRACELOG(RL_LOG_INFO, "TEXTURE: [ID %i] Texture loaded successfully (%ix%i | %s | %i mipmaps)", id, width, height, rlGetPixelFormatName(format), mipmapCount); + else TRACELOG(RL_LOG_WARNING, "TEXTURE: Failed to load texture"); + + return id; +} + +// Load depth texture/renderbuffer (to be attached to fbo) +// WARNING: OpenGL ES 2.0 requires GL_OES_depth_texture/WEBGL_depth_texture extensions +unsigned int rlLoadTextureDepth(int width, int height, bool useRenderBuffer) +{ + unsigned int id = 0; + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + // In case depth textures not supported, we force renderbuffer usage + if (!RLGL.ExtSupported.texDepth) useRenderBuffer = true; + + // NOTE: We let the implementation to choose the best bit-depth + // Possible formats: GL_DEPTH_COMPONENT16, GL_DEPTH_COMPONENT24, GL_DEPTH_COMPONENT32 and GL_DEPTH_COMPONENT32F + unsigned int glInternalFormat = GL_DEPTH_COMPONENT; + +#if defined(GRAPHICS_API_OPENGL_ES2) + if (RLGL.ExtSupported.maxDepthBits == 32) glInternalFormat = GL_DEPTH_COMPONENT32_OES; + else if (RLGL.ExtSupported.maxDepthBits == 24) glInternalFormat = GL_DEPTH_COMPONENT24_OES; + else glInternalFormat = GL_DEPTH_COMPONENT16; +#endif + + if (!useRenderBuffer && RLGL.ExtSupported.texDepth) + { + glGenTextures(1, &id); + glBindTexture(GL_TEXTURE_2D, id); + glTexImage2D(GL_TEXTURE_2D, 0, glInternalFormat, width, height, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NULL); + + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + + glBindTexture(GL_TEXTURE_2D, 0); + + TRACELOG(RL_LOG_INFO, "TEXTURE: Depth texture loaded successfully"); + } + else + { + // Create the renderbuffer that will serve as the depth attachment for the framebuffer + // NOTE: A renderbuffer is simpler than a texture and could offer better performance on embedded devices + glGenRenderbuffers(1, &id); + glBindRenderbuffer(GL_RENDERBUFFER, id); + glRenderbufferStorage(GL_RENDERBUFFER, glInternalFormat, width, height); + + glBindRenderbuffer(GL_RENDERBUFFER, 0); + + TRACELOG(RL_LOG_INFO, "TEXTURE: [ID %i] Depth renderbuffer loaded successfully (%i bits)", id, (RLGL.ExtSupported.maxDepthBits >= 24)? RLGL.ExtSupported.maxDepthBits : 16); + } +#endif + + return id; +} + +// Load texture cubemap +// NOTE: Cubemap data is expected to be 6 images in a single data array (one after the other), +// expected the following convention: +X, -X, +Y, -Y, +Z, -Z +unsigned int rlLoadTextureCubemap(void *data, int size, int format) +{ + unsigned int id = 0; + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + unsigned int dataSize = rlGetPixelDataSize(size, size, format); + + glGenTextures(1, &id); + glBindTexture(GL_TEXTURE_CUBE_MAP, id); + + int glInternalFormat, glFormat, glType; + rlGetGlTextureFormats(format, &glInternalFormat, &glFormat, &glType); + + if (glInternalFormat != -1) + { + // Load cubemap faces + for (unsigned int i = 0; i < 6; i++) + { + if (data == NULL) + { + if (format < RL_PIXELFORMAT_COMPRESSED_DXT1_RGB) + { + if (format == RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32) + { + // Instead of using a sized internal texture format (GL_RGB16F, GL_RGB32F), we let the driver to choose the better format for us (GL_RGB) + if (RLGL.ExtSupported.texFloat32) glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, GL_RGB, size, size, 0, GL_RGB, GL_FLOAT, NULL); + else TRACELOG(RL_LOG_WARNING, "TEXTURES: Cubemap requested format not supported"); + } + else if ((format == RL_PIXELFORMAT_UNCOMPRESSED_R32) || (format == RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32A32)) TRACELOG(RL_LOG_WARNING, "TEXTURES: Cubemap requested format not supported"); + else glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, glInternalFormat, size, size, 0, glFormat, glType, NULL); + } + else TRACELOG(RL_LOG_WARNING, "TEXTURES: Empty cubemap creation does not support compressed format"); + } + else + { + if (format < RL_PIXELFORMAT_COMPRESSED_DXT1_RGB) glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, glInternalFormat, size, size, 0, glFormat, glType, (unsigned char *)data + i*dataSize); + else glCompressedTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, glInternalFormat, size, size, 0, dataSize, (unsigned char *)data + i*dataSize); + } + +#if defined(GRAPHICS_API_OPENGL_33) + if (format == RL_PIXELFORMAT_UNCOMPRESSED_GRAYSCALE) + { + GLint swizzleMask[] = { GL_RED, GL_RED, GL_RED, GL_ONE }; + glTexParameteriv(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_SWIZZLE_RGBA, swizzleMask); + } + else if (format == RL_PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA) + { +#if defined(GRAPHICS_API_OPENGL_21) + GLint swizzleMask[] = { GL_RED, GL_RED, GL_RED, GL_ALPHA }; +#elif defined(GRAPHICS_API_OPENGL_33) + GLint swizzleMask[] = { GL_RED, GL_RED, GL_RED, GL_GREEN }; +#endif + glTexParameteriv(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_SWIZZLE_RGBA, swizzleMask); + } +#endif + } + } + + // Set cubemap texture sampling parameters + glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); + glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); +#if defined(GRAPHICS_API_OPENGL_33) + glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE); // Flag not supported on OpenGL ES 2.0 +#endif + + glBindTexture(GL_TEXTURE_CUBE_MAP, 0); +#endif + + if (id > 0) TRACELOG(RL_LOG_INFO, "TEXTURE: [ID %i] Cubemap texture loaded successfully (%ix%i)", id, size, size); + else TRACELOG(RL_LOG_WARNING, "TEXTURE: Failed to load cubemap texture"); + + return id; +} + +// Update already loaded texture in GPU with new data +// NOTE: We don't know safely if internal texture format is the expected one... +void rlUpdateTexture(unsigned int id, int offsetX, int offsetY, int width, int height, int format, const void *data) +{ + glBindTexture(GL_TEXTURE_2D, id); + + int glInternalFormat, glFormat, glType; + rlGetGlTextureFormats(format, &glInternalFormat, &glFormat, &glType); + + if ((glInternalFormat != -1) && (format < RL_PIXELFORMAT_COMPRESSED_DXT1_RGB)) + { + glTexSubImage2D(GL_TEXTURE_2D, 0, offsetX, offsetY, width, height, glFormat, glType, (unsigned char *)data); + } + else TRACELOG(RL_LOG_WARNING, "TEXTURE: [ID %i] Failed to update for current texture format (%i)", id, format); +} + +// Get OpenGL internal formats and data type from raylib PixelFormat +void rlGetGlTextureFormats(int format, int *glInternalFormat, int *glFormat, int *glType) +{ + *glInternalFormat = -1; + *glFormat = -1; + *glType = -1; + + switch (format) + { + #if defined(GRAPHICS_API_OPENGL_11) || defined(GRAPHICS_API_OPENGL_21) || defined(GRAPHICS_API_OPENGL_ES2) + // NOTE: on OpenGL ES 2.0 (WebGL), internalFormat must match format and options allowed are: GL_LUMINANCE, GL_RGB, GL_RGBA + case RL_PIXELFORMAT_UNCOMPRESSED_GRAYSCALE: *glInternalFormat = GL_LUMINANCE; *glFormat = GL_LUMINANCE; *glType = GL_UNSIGNED_BYTE; break; + case RL_PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA: *glInternalFormat = GL_LUMINANCE_ALPHA; *glFormat = GL_LUMINANCE_ALPHA; *glType = GL_UNSIGNED_BYTE; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R5G6B5: *glInternalFormat = GL_RGB; *glFormat = GL_RGB; *glType = GL_UNSIGNED_SHORT_5_6_5; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8: *glInternalFormat = GL_RGB; *glFormat = GL_RGB; *glType = GL_UNSIGNED_BYTE; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R5G5B5A1: *glInternalFormat = GL_RGBA; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_SHORT_5_5_5_1; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R4G4B4A4: *glInternalFormat = GL_RGBA; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_SHORT_4_4_4_4; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8A8: *glInternalFormat = GL_RGBA; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_BYTE; break; + #if !defined(GRAPHICS_API_OPENGL_11) + case RL_PIXELFORMAT_UNCOMPRESSED_R32: if (RLGL.ExtSupported.texFloat32) *glInternalFormat = GL_LUMINANCE; *glFormat = GL_LUMINANCE; *glType = GL_FLOAT; break; // NOTE: Requires extension OES_texture_float + case RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32: if (RLGL.ExtSupported.texFloat32) *glInternalFormat = GL_RGB; *glFormat = GL_RGB; *glType = GL_FLOAT; break; // NOTE: Requires extension OES_texture_float + case RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32A32: if (RLGL.ExtSupported.texFloat32) *glInternalFormat = GL_RGBA; *glFormat = GL_RGBA; *glType = GL_FLOAT; break; // NOTE: Requires extension OES_texture_float + #endif + #elif defined(GRAPHICS_API_OPENGL_33) + case RL_PIXELFORMAT_UNCOMPRESSED_GRAYSCALE: *glInternalFormat = GL_R8; *glFormat = GL_RED; *glType = GL_UNSIGNED_BYTE; break; + case RL_PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA: *glInternalFormat = GL_RG8; *glFormat = GL_RG; *glType = GL_UNSIGNED_BYTE; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R5G6B5: *glInternalFormat = GL_RGB565; *glFormat = GL_RGB; *glType = GL_UNSIGNED_SHORT_5_6_5; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8: *glInternalFormat = GL_RGB8; *glFormat = GL_RGB; *glType = GL_UNSIGNED_BYTE; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R5G5B5A1: *glInternalFormat = GL_RGB5_A1; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_SHORT_5_5_5_1; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R4G4B4A4: *glInternalFormat = GL_RGBA4; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_SHORT_4_4_4_4; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8A8: *glInternalFormat = GL_RGBA8; *glFormat = GL_RGBA; *glType = GL_UNSIGNED_BYTE; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R32: if (RLGL.ExtSupported.texFloat32) *glInternalFormat = GL_R32F; *glFormat = GL_RED; *glType = GL_FLOAT; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32: if (RLGL.ExtSupported.texFloat32) *glInternalFormat = GL_RGB32F; *glFormat = GL_RGB; *glType = GL_FLOAT; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32A32: if (RLGL.ExtSupported.texFloat32) *glInternalFormat = GL_RGBA32F; *glFormat = GL_RGBA; *glType = GL_FLOAT; break; + #endif + #if !defined(GRAPHICS_API_OPENGL_11) + case RL_PIXELFORMAT_COMPRESSED_DXT1_RGB: if (RLGL.ExtSupported.texCompDXT) *glInternalFormat = GL_COMPRESSED_RGB_S3TC_DXT1_EXT; break; + case RL_PIXELFORMAT_COMPRESSED_DXT1_RGBA: if (RLGL.ExtSupported.texCompDXT) *glInternalFormat = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT; break; + case RL_PIXELFORMAT_COMPRESSED_DXT3_RGBA: if (RLGL.ExtSupported.texCompDXT) *glInternalFormat = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT; break; + case RL_PIXELFORMAT_COMPRESSED_DXT5_RGBA: if (RLGL.ExtSupported.texCompDXT) *glInternalFormat = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT; break; + case RL_PIXELFORMAT_COMPRESSED_ETC1_RGB: if (RLGL.ExtSupported.texCompETC1) *glInternalFormat = GL_ETC1_RGB8_OES; break; // NOTE: Requires OpenGL ES 2.0 or OpenGL 4.3 + case RL_PIXELFORMAT_COMPRESSED_ETC2_RGB: if (RLGL.ExtSupported.texCompETC2) *glInternalFormat = GL_COMPRESSED_RGB8_ETC2; break; // NOTE: Requires OpenGL ES 3.0 or OpenGL 4.3 + case RL_PIXELFORMAT_COMPRESSED_ETC2_EAC_RGBA: if (RLGL.ExtSupported.texCompETC2) *glInternalFormat = GL_COMPRESSED_RGBA8_ETC2_EAC; break; // NOTE: Requires OpenGL ES 3.0 or OpenGL 4.3 + case RL_PIXELFORMAT_COMPRESSED_PVRT_RGB: if (RLGL.ExtSupported.texCompPVRT) *glInternalFormat = GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG; break; // NOTE: Requires PowerVR GPU + case RL_PIXELFORMAT_COMPRESSED_PVRT_RGBA: if (RLGL.ExtSupported.texCompPVRT) *glInternalFormat = GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG; break; // NOTE: Requires PowerVR GPU + case RL_PIXELFORMAT_COMPRESSED_ASTC_4x4_RGBA: if (RLGL.ExtSupported.texCompASTC) *glInternalFormat = GL_COMPRESSED_RGBA_ASTC_4x4_KHR; break; // NOTE: Requires OpenGL ES 3.1 or OpenGL 4.3 + case RL_PIXELFORMAT_COMPRESSED_ASTC_8x8_RGBA: if (RLGL.ExtSupported.texCompASTC) *glInternalFormat = GL_COMPRESSED_RGBA_ASTC_8x8_KHR; break; // NOTE: Requires OpenGL ES 3.1 or OpenGL 4.3 + #endif + default: TRACELOG(RL_LOG_WARNING, "TEXTURE: Current format not supported (%i)", format); break; + } +} + +// Unload texture from GPU memory +void rlUnloadTexture(unsigned int id) +{ + glDeleteTextures(1, &id); +} + +// Generate mipmap data for selected texture +void rlGenTextureMipmaps(unsigned int id, int width, int height, int format, int *mipmaps) +{ + glBindTexture(GL_TEXTURE_2D, id); + + // Check if texture is power-of-two (POT) + bool texIsPOT = false; + + if (((width > 0) && ((width & (width - 1)) == 0)) && + ((height > 0) && ((height & (height - 1)) == 0))) texIsPOT = true; + +#if defined(GRAPHICS_API_OPENGL_11) + if (texIsPOT) + { + // WARNING: Manual mipmap generation only works for RGBA 32bit textures! + if (format == RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8A8) + { + // Retrieve texture data from VRAM + void *texData = rlReadTexturePixels(id, width, height, format); + + // NOTE: Texture data size is reallocated to fit mipmaps data + // NOTE: CPU mipmap generation only supports RGBA 32bit data + int mipmapCount = rlGenTextureMipmapsData(texData, width, height); + + int size = width*height*4; + int offset = size; + + int mipWidth = width/2; + int mipHeight = height/2; + + // Load the mipmaps + for (int level = 1; level < mipmapCount; level++) + { + glTexImage2D(GL_TEXTURE_2D, level, GL_RGBA8, mipWidth, mipHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, (unsigned char *)texData + offset); + + size = mipWidth*mipHeight*4; + offset += size; + + mipWidth /= 2; + mipHeight /= 2; + } + + *mipmaps = mipmapCount + 1; + RL_FREE(texData); // Once mipmaps have been generated and data has been uploaded to GPU VRAM, we can discard RAM data + + TRACELOG(RL_LOG_WARNING, "TEXTURE: [ID %i] Mipmaps generated manually on CPU side, total: %i", id, *mipmaps); + } + else TRACELOG(RL_LOG_WARNING, "TEXTURE: [ID %i] Failed to generate mipmaps for provided texture format", id); + } +#endif +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + if ((texIsPOT) || (RLGL.ExtSupported.texNPOT)) + { + //glHint(GL_GENERATE_MIPMAP_HINT, GL_DONT_CARE); // Hint for mipmaps generation algorythm: GL_FASTEST, GL_NICEST, GL_DONT_CARE + glGenerateMipmap(GL_TEXTURE_2D); // Generate mipmaps automatically + + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); // Activate Trilinear filtering for mipmaps + + #define MIN(a,b) (((a)<(b))?(a):(b)) + #define MAX(a,b) (((a)>(b))?(a):(b)) + + *mipmaps = 1 + (int)floor(log(MAX(width, height))/log(2)); + TRACELOG(RL_LOG_INFO, "TEXTURE: [ID %i] Mipmaps generated automatically, total: %i", id, *mipmaps); + } +#endif + else TRACELOG(RL_LOG_WARNING, "TEXTURE: [ID %i] Failed to generate mipmaps", id); + + glBindTexture(GL_TEXTURE_2D, 0); +} + + +// Read texture pixel data +void *rlReadTexturePixels(unsigned int id, int width, int height, int format) +{ + void *pixels = NULL; + +#if defined(GRAPHICS_API_OPENGL_11) || defined(GRAPHICS_API_OPENGL_33) + glBindTexture(GL_TEXTURE_2D, id); + + // NOTE: Using texture id, we can retrieve some texture info (but not on OpenGL ES 2.0) + // Possible texture info: GL_TEXTURE_RED_SIZE, GL_TEXTURE_GREEN_SIZE, GL_TEXTURE_BLUE_SIZE, GL_TEXTURE_ALPHA_SIZE + //int width, height, format; + //glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &width); + //glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, &height); + //glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_INTERNAL_FORMAT, &format); + + // NOTE: Each row written to or read from by OpenGL pixel operations like glGetTexImage are aligned to a 4 byte boundary by default, which may add some padding. + // Use glPixelStorei to modify padding with the GL_[UN]PACK_ALIGNMENT setting. + // GL_PACK_ALIGNMENT affects operations that read from OpenGL memory (glReadPixels, glGetTexImage, etc.) + // GL_UNPACK_ALIGNMENT affects operations that write to OpenGL memory (glTexImage, etc.) + glPixelStorei(GL_PACK_ALIGNMENT, 1); + + int glInternalFormat, glFormat, glType; + rlGetGlTextureFormats(format, &glInternalFormat, &glFormat, &glType); + unsigned int size = rlGetPixelDataSize(width, height, format); + + if ((glInternalFormat != -1) && (format < RL_PIXELFORMAT_COMPRESSED_DXT1_RGB)) + { + pixels = RL_MALLOC(size); + glGetTexImage(GL_TEXTURE_2D, 0, glFormat, glType, pixels); + } + else TRACELOG(RL_LOG_WARNING, "TEXTURE: [ID %i] Data retrieval not suported for pixel format (%i)", id, format); + + glBindTexture(GL_TEXTURE_2D, 0); +#endif + +#if defined(GRAPHICS_API_OPENGL_ES2) + // glGetTexImage() is not available on OpenGL ES 2.0 + // Texture width and height are required on OpenGL ES 2.0. There is no way to get it from texture id. + // Two possible Options: + // 1 - Bind texture to color fbo attachment and glReadPixels() + // 2 - Create an fbo, activate it, render quad with texture, glReadPixels() + // We are using Option 1, just need to care for texture format on retrieval + // NOTE: This behaviour could be conditioned by graphic driver... + unsigned int fboId = rlLoadFramebuffer(width, height); + + glBindFramebuffer(GL_FRAMEBUFFER, fboId); + glBindTexture(GL_TEXTURE_2D, 0); + + // Attach our texture to FBO + glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, id, 0); + + // We read data as RGBA because FBO texture is configured as RGBA, despite binding another texture format + pixels = (unsigned char *)RL_MALLOC(rlGetPixelDataSize(width, height, RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8A8)); + glReadPixels(0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, pixels); + + glBindFramebuffer(GL_FRAMEBUFFER, 0); + + // Clean up temporal fbo + rlUnloadFramebuffer(fboId); +#endif + + return pixels; +} + + +// Read screen pixel data (color buffer) +unsigned char *rlReadScreenPixels(int width, int height) +{ + unsigned char *screenData = (unsigned char *)RL_CALLOC(width*height*4, sizeof(unsigned char)); + + // NOTE 1: glReadPixels returns image flipped vertically -> (0,0) is the bottom left corner of the framebuffer + // NOTE 2: We are getting alpha channel! Be careful, it can be transparent if not cleared properly! + glReadPixels(0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, screenData); + + // Flip image vertically! + unsigned char *imgData = (unsigned char *)RL_MALLOC(width*height*4*sizeof(unsigned char)); + + for (int y = height - 1; y >= 0; y--) + { + for (int x = 0; x < (width*4); x++) + { + imgData[((height - 1) - y)*width*4 + x] = screenData[(y*width*4) + x]; // Flip line + + // Set alpha component value to 255 (no trasparent image retrieval) + // NOTE: Alpha value has already been applied to RGB in framebuffer, we don't need it! + if (((x + 1)%4) == 0) imgData[((height - 1) - y)*width*4 + x] = 255; + } + } + + RL_FREE(screenData); + + return imgData; // NOTE: image data should be freed +} + +// Framebuffer management (fbo) +//----------------------------------------------------------------------------------------- +// Load a framebuffer to be used for rendering +// NOTE: No textures attached +unsigned int rlLoadFramebuffer(int width, int height) +{ + unsigned int fboId = 0; + +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)) && defined(RLGL_RENDER_TEXTURES_HINT) + glGenFramebuffers(1, &fboId); // Create the framebuffer object + glBindFramebuffer(GL_FRAMEBUFFER, 0); // Unbind any framebuffer +#endif + + return fboId; +} + +// Attach color buffer texture to an fbo (unloads previous attachment) +// NOTE: Attach type: 0-Color, 1-Depth renderbuffer, 2-Depth texture +void rlFramebufferAttach(unsigned int fboId, unsigned int texId, int attachType, int texType, int mipLevel) +{ +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)) && defined(RLGL_RENDER_TEXTURES_HINT) + glBindFramebuffer(GL_FRAMEBUFFER, fboId); + + switch (attachType) + { + case RL_ATTACHMENT_COLOR_CHANNEL0: + case RL_ATTACHMENT_COLOR_CHANNEL1: + case RL_ATTACHMENT_COLOR_CHANNEL2: + case RL_ATTACHMENT_COLOR_CHANNEL3: + case RL_ATTACHMENT_COLOR_CHANNEL4: + case RL_ATTACHMENT_COLOR_CHANNEL5: + case RL_ATTACHMENT_COLOR_CHANNEL6: + case RL_ATTACHMENT_COLOR_CHANNEL7: + { + if (texType == RL_ATTACHMENT_TEXTURE2D) glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + attachType, GL_TEXTURE_2D, texId, mipLevel); + else if (texType == RL_ATTACHMENT_RENDERBUFFER) glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + attachType, GL_RENDERBUFFER, texId); + else if (texType >= RL_ATTACHMENT_CUBEMAP_POSITIVE_X) glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 + attachType, GL_TEXTURE_CUBE_MAP_POSITIVE_X + texType, texId, mipLevel); + + } break; + case RL_ATTACHMENT_DEPTH: + { + if (texType == RL_ATTACHMENT_TEXTURE2D) glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, texId, mipLevel); + else if (texType == RL_ATTACHMENT_RENDERBUFFER) glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, texId); + + } break; + case RL_ATTACHMENT_STENCIL: + { + if (texType == RL_ATTACHMENT_TEXTURE2D) glFramebufferTexture2D(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_TEXTURE_2D, texId, mipLevel); + else if (texType == RL_ATTACHMENT_RENDERBUFFER) glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, texId); + + } break; + default: break; + } + + glBindFramebuffer(GL_FRAMEBUFFER, 0); +#endif +} + +// Verify render texture is complete +bool rlFramebufferComplete(unsigned int id) +{ + bool result = false; + +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)) && defined(RLGL_RENDER_TEXTURES_HINT) + glBindFramebuffer(GL_FRAMEBUFFER, id); + + GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER); + + if (status != GL_FRAMEBUFFER_COMPLETE) + { + switch (status) + { + case GL_FRAMEBUFFER_UNSUPPORTED: TRACELOG(RL_LOG_WARNING, "FBO: [ID %i] Framebuffer is unsupported", id); break; + case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT: TRACELOG(RL_LOG_WARNING, "FBO: [ID %i] Framebuffer has incomplete attachment", id); break; +#if defined(GRAPHICS_API_OPENGL_ES2) + case GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS: TRACELOG(RL_LOG_WARNING, "FBO: [ID %i] Framebuffer has incomplete dimensions", id); break; +#endif + case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT: TRACELOG(RL_LOG_WARNING, "FBO: [ID %i] Framebuffer has a missing attachment", id); break; + default: break; + } + } + + glBindFramebuffer(GL_FRAMEBUFFER, 0); + + result = (status == GL_FRAMEBUFFER_COMPLETE); +#endif + + return result; +} + +// Unload framebuffer from GPU memory +// NOTE: All attached textures/cubemaps/renderbuffers are also deleted +void rlUnloadFramebuffer(unsigned int id) +{ +#if (defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)) && defined(RLGL_RENDER_TEXTURES_HINT) + + // Query depth attachment to automatically delete texture/renderbuffer + int depthType = 0, depthId = 0; + glBindFramebuffer(GL_FRAMEBUFFER, id); // Bind framebuffer to query depth texture type + glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE, &depthType); + glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME, &depthId); + + unsigned int depthIdU = (unsigned int)depthId; + if (depthType == GL_RENDERBUFFER) glDeleteRenderbuffers(1, &depthIdU); + else if (depthType == GL_RENDERBUFFER) glDeleteTextures(1, &depthIdU); + + // NOTE: If a texture object is deleted while its image is attached to the *currently bound* framebuffer, + // the texture image is automatically detached from the currently bound framebuffer. + + glBindFramebuffer(GL_FRAMEBUFFER, 0); + glDeleteFramebuffers(1, &id); + + TRACELOG(RL_LOG_INFO, "FBO: [ID %i] Unloaded framebuffer from VRAM (GPU)", id); +#endif +} + +// Vertex data management +//----------------------------------------------------------------------------------------- +// Load a new attributes buffer +unsigned int rlLoadVertexBuffer(void *buffer, int size, bool dynamic) +{ + unsigned int id = 0; + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glGenBuffers(1, &id); + glBindBuffer(GL_ARRAY_BUFFER, id); + glBufferData(GL_ARRAY_BUFFER, size, buffer, dynamic? GL_DYNAMIC_DRAW : GL_STATIC_DRAW); +#endif + + return id; +} + +// Load a new attributes element buffer +unsigned int rlLoadVertexBufferElement(void *buffer, int size, bool dynamic) +{ + unsigned int id = 0; + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glGenBuffers(1, &id); + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, id); + glBufferData(GL_ELEMENT_ARRAY_BUFFER, size, buffer, dynamic? GL_DYNAMIC_DRAW : GL_STATIC_DRAW); +#endif + + return id; +} + +// Enable vertex buffer (VBO) +void rlEnableVertexBuffer(unsigned int id) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glBindBuffer(GL_ARRAY_BUFFER, id); +#endif +} + +// Disable vertex buffer (VBO) +void rlDisableVertexBuffer(void) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glBindBuffer(GL_ARRAY_BUFFER, 0); +#endif +} + +// Enable vertex buffer element (VBO element) +void rlEnableVertexBufferElement(unsigned int id) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, id); +#endif +} + +// Disable vertex buffer element (VBO element) +void rlDisableVertexBufferElement(void) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); +#endif +} + +// Update vertex buffer with new data +// NOTE: dataSize and offset must be provided in bytes +void rlUpdateVertexBuffer(unsigned int id, void *data, int dataSize, int offset) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glBindBuffer(GL_ARRAY_BUFFER, id); + glBufferSubData(GL_ARRAY_BUFFER, offset, dataSize, data); +#endif +} + +// Update vertex buffer elements with new data +// NOTE: dataSize and offset must be provided in bytes +void rlUpdateVertexBufferElements(unsigned int id, void *data, int dataSize, int offset) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, id); + glBufferSubData(GL_ELEMENT_ARRAY_BUFFER, offset, dataSize, data); +#endif +} + +// Enable vertex array object (VAO) +bool rlEnableVertexArray(unsigned int vaoId) +{ + bool result = false; +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + if (RLGL.ExtSupported.vao) + { + glBindVertexArray(vaoId); + result = true; + } +#endif + return result; +} + +// Disable vertex array object (VAO) +void rlDisableVertexArray(void) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + if (RLGL.ExtSupported.vao) glBindVertexArray(0); +#endif +} + +// Enable vertex attribute index +void rlEnableVertexAttribute(unsigned int index) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glEnableVertexAttribArray(index); +#endif +} + +// Disable vertex attribute index +void rlDisableVertexAttribute(unsigned int index) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glDisableVertexAttribArray(index); +#endif +} + +// Draw vertex array +void rlDrawVertexArray(int offset, int count) +{ + glDrawArrays(GL_TRIANGLES, offset, count); +} + +// Draw vertex array elements +void rlDrawVertexArrayElements(int offset, int count, void *buffer) +{ + glDrawElements(GL_TRIANGLES, count, GL_UNSIGNED_SHORT, (unsigned short *)buffer + offset); +} + +// Draw vertex array instanced +void rlDrawVertexArrayInstanced(int offset, int count, int instances) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glDrawArraysInstanced(GL_TRIANGLES, 0, count, instances); +#endif +} + +// Draw vertex array elements instanced +void rlDrawVertexArrayElementsInstanced(int offset, int count, void *buffer, int instances) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glDrawElementsInstanced(GL_TRIANGLES, count, GL_UNSIGNED_SHORT, (unsigned short *)buffer + offset, instances); +#endif +} + +#if defined(GRAPHICS_API_OPENGL_11) +// Enable vertex state pointer +void rlEnableStatePointer(int vertexAttribType, void *buffer) +{ + if (buffer != NULL) glEnableClientState(vertexAttribType); + switch (vertexAttribType) + { + case GL_VERTEX_ARRAY: glVertexPointer(3, GL_FLOAT, 0, buffer); break; + case GL_TEXTURE_COORD_ARRAY: glTexCoordPointer(2, GL_FLOAT, 0, buffer); break; + case GL_NORMAL_ARRAY: if (buffer != NULL) glNormalPointer(GL_FLOAT, 0, buffer); break; + case GL_COLOR_ARRAY: if (buffer != NULL) glColorPointer(4, GL_UNSIGNED_BYTE, 0, buffer); break; + //case GL_INDEX_ARRAY: if (buffer != NULL) glIndexPointer(GL_SHORT, 0, buffer); break; // Indexed colors + default: break; + } +} + +// Disable vertex state pointer +void rlDisableStatePointer(int vertexAttribType) +{ + glDisableClientState(vertexAttribType); +} +#endif + +// Load vertex array object (VAO) +unsigned int rlLoadVertexArray(void) +{ + unsigned int vaoId = 0; +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + if (RLGL.ExtSupported.vao) + { + glGenVertexArrays(1, &vaoId); + } +#endif + return vaoId; +} + +// Set vertex attribute +void rlSetVertexAttribute(unsigned int index, int compSize, int type, bool normalized, int stride, void *pointer) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glVertexAttribPointer(index, compSize, type, normalized, stride, pointer); +#endif +} + +// Set vertex attribute divisor +void rlSetVertexAttributeDivisor(unsigned int index, int divisor) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glVertexAttribDivisor(index, divisor); +#endif +} + +// Unload vertex array object (VAO) +void rlUnloadVertexArray(unsigned int vaoId) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + if (RLGL.ExtSupported.vao) + { + glBindVertexArray(0); + glDeleteVertexArrays(1, &vaoId); + TRACELOG(RL_LOG_INFO, "VAO: [ID %i] Unloaded vertex array data from VRAM (GPU)", vaoId); + } +#endif +} + +// Unload vertex buffer (VBO) +void rlUnloadVertexBuffer(unsigned int vboId) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glDeleteBuffers(1, &vboId); + //TRACELOG(RL_LOG_INFO, "VBO: Unloaded vertex data from VRAM (GPU)"); +#endif +} + +// Shaders management +//----------------------------------------------------------------------------------------------- +// Load shader from code strings +// NOTE: If shader string is NULL, using default vertex/fragment shaders +unsigned int rlLoadShaderCode(const char *vsCode, const char *fsCode) +{ + unsigned int id = 0; + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + unsigned int vertexShaderId = RLGL.State.defaultVShaderId; + unsigned int fragmentShaderId = RLGL.State.defaultFShaderId; + + if (vsCode != NULL) vertexShaderId = rlCompileShader(vsCode, GL_VERTEX_SHADER); + if (fsCode != NULL) fragmentShaderId = rlCompileShader(fsCode, GL_FRAGMENT_SHADER); + + if ((vertexShaderId == RLGL.State.defaultVShaderId) && (fragmentShaderId == RLGL.State.defaultFShaderId)) id = RLGL.State.defaultShaderId; + else + { + id = rlLoadShaderProgram(vertexShaderId, fragmentShaderId); + + if (vertexShaderId != RLGL.State.defaultVShaderId) + { + // Detach shader before deletion to make sure memory is freed + glDetachShader(id, vertexShaderId); + glDeleteShader(vertexShaderId); + } + if (fragmentShaderId != RLGL.State.defaultFShaderId) + { + // Detach shader before deletion to make sure memory is freed + glDetachShader(id, fragmentShaderId); + glDeleteShader(fragmentShaderId); + } + + if (id == 0) + { + TRACELOG(RL_LOG_WARNING, "SHADER: Failed to load custom shader code"); + id = RLGL.State.defaultShaderId; + } + } + + // Get available shader uniforms + // NOTE: This information is useful for debug... + int uniformCount = -1; + + glGetProgramiv(id, GL_ACTIVE_UNIFORMS, &uniformCount); + + for (int i = 0; i < uniformCount; i++) + { + int namelen = -1; + int num = -1; + char name[256] = { 0 }; // Assume no variable names longer than 256 + GLenum type = GL_ZERO; + + // Get the name of the uniforms + glGetActiveUniform(id, i, sizeof(name) - 1, &namelen, &num, &type, name); + + name[namelen] = 0; + + TRACELOGD("SHADER: [ID %i] Active uniform (%s) set at location: %i", id, name, glGetUniformLocation(id, name)); + } +#endif + + return id; +} + +// Compile custom shader and return shader id +unsigned int rlCompileShader(const char *shaderCode, int type) +{ + unsigned int shader = 0; + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + shader = glCreateShader(type); + glShaderSource(shader, 1, &shaderCode, NULL); + + GLint success = 0; + glCompileShader(shader); + glGetShaderiv(shader, GL_COMPILE_STATUS, &success); + + if (success == GL_FALSE) + { + switch (type) + { + case GL_VERTEX_SHADER: TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Failed to compile vertex shader code", shader); break; + case GL_FRAGMENT_SHADER: TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Failed to compile fragment shader code", shader); break; + //case GL_GEOMETRY_SHADER: + #if defined(GRAPHICS_API_OPENGL_43) + case GL_COMPUTE_SHADER: TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Failed to compile compute shader code", shader); break; + #endif + default: break; + } + + int maxLength = 0; + glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &maxLength); + + if (maxLength > 0) + { + int length = 0; + char *log = RL_CALLOC(maxLength, sizeof(char)); + glGetShaderInfoLog(shader, maxLength, &length, log); + TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Compile error: %s", shader, log); + RL_FREE(log); + } + } + else + { + switch (type) + { + case GL_VERTEX_SHADER: TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Vertex shader compiled successfully", shader); break; + case GL_FRAGMENT_SHADER: TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Fragment shader compiled successfully", shader); break; + //case GL_GEOMETRY_SHADER: + #if defined(GRAPHICS_API_OPENGL_43) + case GL_COMPUTE_SHADER: TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Compute shader compiled successfully", shader); break; + #endif + default: break; + } + } +#endif + + return shader; +} + +// Load custom shader strings and return program id +unsigned int rlLoadShaderProgram(unsigned int vShaderId, unsigned int fShaderId) +{ + unsigned int program = 0; + +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + GLint success = 0; + program = glCreateProgram(); + + glAttachShader(program, vShaderId); + glAttachShader(program, fShaderId); + + // NOTE: Default attribute shader locations must be binded before linking + glBindAttribLocation(program, 0, RL_DEFAULT_SHADER_ATTRIB_NAME_POSITION); + glBindAttribLocation(program, 1, RL_DEFAULT_SHADER_ATTRIB_NAME_TEXCOORD); + glBindAttribLocation(program, 2, RL_DEFAULT_SHADER_ATTRIB_NAME_NORMAL); + glBindAttribLocation(program, 3, RL_DEFAULT_SHADER_ATTRIB_NAME_COLOR); + glBindAttribLocation(program, 4, RL_DEFAULT_SHADER_ATTRIB_NAME_TANGENT); + glBindAttribLocation(program, 5, RL_DEFAULT_SHADER_ATTRIB_NAME_TEXCOORD2); + + // NOTE: If some attrib name is no found on the shader, it locations becomes -1 + + glLinkProgram(program); + + // NOTE: All uniform variables are intitialised to 0 when a program links + + glGetProgramiv(program, GL_LINK_STATUS, &success); + + if (success == GL_FALSE) + { + TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Failed to link shader program", program); + + int maxLength = 0; + glGetProgramiv(program, GL_INFO_LOG_LENGTH, &maxLength); + + if (maxLength > 0) + { + int length = 0; + char *log = RL_CALLOC(maxLength, sizeof(char)); + glGetProgramInfoLog(program, maxLength, &length, log); + TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Link error: %s", program, log); + RL_FREE(log); + } + + glDeleteProgram(program); + + program = 0; + } + else + { + // Get the size of compiled shader program (not available on OpenGL ES 2.0) + // NOTE: If GL_LINK_STATUS is GL_FALSE, program binary length is zero. + //GLint binarySize = 0; + //glGetProgramiv(id, GL_PROGRAM_BINARY_LENGTH, &binarySize); + + TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Program shader loaded successfully", program); + } +#endif + return program; +} + +// Unload shader program +void rlUnloadShaderProgram(unsigned int id) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + glDeleteProgram(id); + + TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Unloaded shader program data from VRAM (GPU)", id); +#endif +} + +// Get shader location uniform +int rlGetLocationUniform(unsigned int shaderId, const char *uniformName) +{ + int location = -1; +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + location = glGetUniformLocation(shaderId, uniformName); + + if (location == -1) TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Failed to find shader uniform: %s", shaderId, uniformName); + else TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Shader uniform (%s) set at location: %i", shaderId, uniformName, location); +#endif + return location; +} + +// Get shader location attribute +int rlGetLocationAttrib(unsigned int shaderId, const char *attribName) +{ + int location = -1; +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + location = glGetAttribLocation(shaderId, attribName); + + if (location == -1) TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Failed to find shader attribute: %s", shaderId, attribName); + else TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Shader attribute (%s) set at location: %i", shaderId, attribName, location); +#endif + return location; +} + +// Set shader value uniform +void rlSetUniform(int locIndex, const void *value, int uniformType, int count) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + switch (uniformType) + { + case RL_SHADER_UNIFORM_FLOAT: glUniform1fv(locIndex, count, (float *)value); break; + case RL_SHADER_UNIFORM_VEC2: glUniform2fv(locIndex, count, (float *)value); break; + case RL_SHADER_UNIFORM_VEC3: glUniform3fv(locIndex, count, (float *)value); break; + case RL_SHADER_UNIFORM_VEC4: glUniform4fv(locIndex, count, (float *)value); break; + case RL_SHADER_UNIFORM_INT: glUniform1iv(locIndex, count, (int *)value); break; + case RL_SHADER_UNIFORM_IVEC2: glUniform2iv(locIndex, count, (int *)value); break; + case RL_SHADER_UNIFORM_IVEC3: glUniform3iv(locIndex, count, (int *)value); break; + case RL_SHADER_UNIFORM_IVEC4: glUniform4iv(locIndex, count, (int *)value); break; + case RL_SHADER_UNIFORM_SAMPLER2D: glUniform1iv(locIndex, count, (int *)value); break; + default: TRACELOG(RL_LOG_WARNING, "SHADER: Failed to set uniform value, data type not recognized"); + } +#endif +} + +// Set shader value attribute +void rlSetVertexAttributeDefault(int locIndex, const void *value, int attribType, int count) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + switch (attribType) + { + case RL_SHADER_ATTRIB_FLOAT: if (count == 1) glVertexAttrib1fv(locIndex, (float *)value); break; + case RL_SHADER_ATTRIB_VEC2: if (count == 2) glVertexAttrib2fv(locIndex, (float *)value); break; + case RL_SHADER_ATTRIB_VEC3: if (count == 3) glVertexAttrib3fv(locIndex, (float *)value); break; + case RL_SHADER_ATTRIB_VEC4: if (count == 4) glVertexAttrib4fv(locIndex, (float *)value); break; + default: TRACELOG(RL_LOG_WARNING, "SHADER: Failed to set attrib default value, data type not recognized"); + } +#endif +} + +// Set shader value uniform matrix +void rlSetUniformMatrix(int locIndex, Matrix mat) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + float matfloat[16] = { + mat.m0, mat.m1, mat.m2, mat.m3, + mat.m4, mat.m5, mat.m6, mat.m7, + mat.m8, mat.m9, mat.m10, mat.m11, + mat.m12, mat.m13, mat.m14, mat.m15 + }; + glUniformMatrix4fv(locIndex, 1, false, matfloat); +#endif +} + +// Set shader value uniform sampler +void rlSetUniformSampler(int locIndex, unsigned int textureId) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + // Check if texture is already active + for (int i = 0; i < RL_DEFAULT_BATCH_MAX_TEXTURE_UNITS; i++) if (RLGL.State.activeTextureId[i] == textureId) return; + + // Register a new active texture for the internal batch system + // NOTE: Default texture is always activated as GL_TEXTURE0 + for (int i = 0; i < RL_DEFAULT_BATCH_MAX_TEXTURE_UNITS; i++) + { + if (RLGL.State.activeTextureId[i] == 0) + { + glUniform1i(locIndex, 1 + i); // Activate new texture unit + RLGL.State.activeTextureId[i] = textureId; // Save texture id for binding on drawing + break; + } + } +#endif +} + +// Set shader currently active (id and locations) +void rlSetShader(unsigned int id, int *locs) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + if (RLGL.State.currentShaderId != id) + { + rlDrawRenderBatch(RLGL.currentBatch); + RLGL.State.currentShaderId = id; + RLGL.State.currentShaderLocs = locs; + } +#endif +} + +// Load compute shader program +unsigned int rlLoadComputeShaderProgram(unsigned int shaderId) +{ + unsigned int program = 0; + +#if defined(GRAPHICS_API_OPENGL_43) + GLint success = 0; + program = glCreateProgram(); + glAttachShader(program, shaderId); + glLinkProgram(program); + + // NOTE: All uniform variables are intitialised to 0 when a program links + + glGetProgramiv(program, GL_LINK_STATUS, &success); + + if (success == GL_FALSE) + { + TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Failed to link compute shader program", program); + + int maxLength = 0; + glGetProgramiv(program, GL_INFO_LOG_LENGTH, &maxLength); + + if (maxLength > 0) + { + int length = 0; + char *log = RL_CALLOC(maxLength, sizeof(char)); + glGetProgramInfoLog(program, maxLength, &length, log); + TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Link error: %s", program, log); + RL_FREE(log); + } + + glDeleteProgram(program); + + program = 0; + } + else + { + // Get the size of compiled shader program (not available on OpenGL ES 2.0) + // NOTE: If GL_LINK_STATUS is GL_FALSE, program binary length is zero. + //GLint binarySize = 0; + //glGetProgramiv(id, GL_PROGRAM_BINARY_LENGTH, &binarySize); + + TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Compute shader program loaded successfully", program); + } +#endif + + return program; +} + +// Dispatch compute shader (equivalent to *draw* for graphics pilepine) +void rlComputeShaderDispatch(unsigned int groupX, unsigned int groupY, unsigned int groupZ) +{ +#if defined(GRAPHICS_API_OPENGL_43) + glDispatchCompute(groupX, groupY, groupZ); +#endif +} + +// Load shader storage buffer object (SSBO) +unsigned int rlLoadShaderBuffer(unsigned long long size, const void *data, int usageHint) +{ + unsigned int ssbo = 0; + +#if defined(GRAPHICS_API_OPENGL_43) + glGenBuffers(1, &ssbo); + glBindBuffer(GL_SHADER_STORAGE_BUFFER, ssbo); + glBufferData(GL_SHADER_STORAGE_BUFFER, size, data, usageHint? usageHint : RL_STREAM_COPY); +#endif + + return ssbo; +} + +// Unload shader storage buffer object (SSBO) +void rlUnloadShaderBuffer(unsigned int ssboId) +{ +#if defined(GRAPHICS_API_OPENGL_43) + glDeleteBuffers(1, &ssboId); +#endif +} + +// Update SSBO buffer data +void rlUpdateShaderBufferElements(unsigned int id, const void *data, unsigned long long dataSize, unsigned long long offset) +{ +#if defined(GRAPHICS_API_OPENGL_43) + glBindBuffer(GL_SHADER_STORAGE_BUFFER, id); + glBufferSubData(GL_SHADER_STORAGE_BUFFER, offset, dataSize, data); +#endif +} + +// Get SSBO buffer size +unsigned long long rlGetShaderBufferSize(unsigned int id) +{ + long long size = 0; + +#if defined(GRAPHICS_API_OPENGL_43) + glBindBuffer(GL_SHADER_STORAGE_BUFFER, id); + glGetInteger64v(GL_SHADER_STORAGE_BUFFER_SIZE, &size); +#endif + + return (size > 0)? size : 0; +} + +// Read SSBO buffer data +void rlReadShaderBufferElements(unsigned int id, void *dest, unsigned long long count, unsigned long long offset) +{ +#if defined(GRAPHICS_API_OPENGL_43) + glBindBuffer(GL_SHADER_STORAGE_BUFFER, id); + glGetBufferSubData(GL_SHADER_STORAGE_BUFFER, offset, count, dest); +#endif +} + +// Bind SSBO buffer +void rlBindShaderBuffer(unsigned int id, unsigned int index) +{ +#if defined(GRAPHICS_API_OPENGL_43) + glBindBufferBase(GL_SHADER_STORAGE_BUFFER, index, id); +#endif +} + +// Copy SSBO buffer data +void rlCopyBuffersElements(unsigned int destId, unsigned int srcId, unsigned long long destOffset, unsigned long long srcOffset, unsigned long long count) +{ +#if defined(GRAPHICS_API_OPENGL_43) + glBindBuffer(GL_COPY_READ_BUFFER, srcId); + glBindBuffer(GL_COPY_WRITE_BUFFER, destId); + glCopyBufferSubData(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, srcOffset, destOffset, count); +#endif +} + +// Bind image texture +void rlBindImageTexture(unsigned int id, unsigned int index, unsigned int format, int readonly) +{ +#if defined(GRAPHICS_API_OPENGL_43) + int glInternalFormat = 0, glFormat = 0, glType = 0; + + rlGetGlTextureFormats(format, &glInternalFormat, &glFormat, &glType); + glBindImageTexture(index, id, 0, 0, 0, readonly ? GL_READ_ONLY : GL_READ_WRITE, glInternalFormat); +#endif +} + +// Matrix state management +//----------------------------------------------------------------------------------------- +// Get internal modelview matrix +Matrix rlGetMatrixModelview(void) +{ + Matrix matrix = rlMatrixIdentity(); +#if defined(GRAPHICS_API_OPENGL_11) + float mat[16]; + glGetFloatv(GL_MODELVIEW_MATRIX, mat); + matrix.m0 = mat[0]; + matrix.m1 = mat[1]; + matrix.m2 = mat[2]; + matrix.m3 = mat[3]; + matrix.m4 = mat[4]; + matrix.m5 = mat[5]; + matrix.m6 = mat[6]; + matrix.m7 = mat[7]; + matrix.m8 = mat[8]; + matrix.m9 = mat[9]; + matrix.m10 = mat[10]; + matrix.m11 = mat[11]; + matrix.m12 = mat[12]; + matrix.m13 = mat[13]; + matrix.m14 = mat[14]; + matrix.m15 = mat[15]; +#else + matrix = RLGL.State.modelview; +#endif + return matrix; +} + +// Get internal projection matrix +Matrix rlGetMatrixProjection(void) +{ +#if defined(GRAPHICS_API_OPENGL_11) + float mat[16]; + glGetFloatv(GL_PROJECTION_MATRIX,mat); + Matrix m; + m.m0 = mat[0]; + m.m1 = mat[1]; + m.m2 = mat[2]; + m.m3 = mat[3]; + m.m4 = mat[4]; + m.m5 = mat[5]; + m.m6 = mat[6]; + m.m7 = mat[7]; + m.m8 = mat[8]; + m.m9 = mat[9]; + m.m10 = mat[10]; + m.m11 = mat[11]; + m.m12 = mat[12]; + m.m13 = mat[13]; + m.m14 = mat[14]; + m.m15 = mat[15]; + return m; +#else + return RLGL.State.projection; +#endif +} + +// Get internal accumulated transform matrix +Matrix rlGetMatrixTransform(void) +{ + Matrix mat = rlMatrixIdentity(); +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + // TODO: Consider possible transform matrices in the RLGL.State.stack + // Is this the right order? or should we start with the first stored matrix instead of the last one? + //Matrix matStackTransform = rlMatrixIdentity(); + //for (int i = RLGL.State.stackCounter; i > 0; i--) matStackTransform = rlMatrixMultiply(RLGL.State.stack[i], matStackTransform); + mat = RLGL.State.transform; +#endif + return mat; +} + +// Get internal projection matrix for stereo render (selected eye) +RLAPI Matrix rlGetMatrixProjectionStereo(int eye) +{ + Matrix mat = rlMatrixIdentity(); +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + mat = RLGL.State.projectionStereo[eye]; +#endif + return mat; +} + +// Get internal view offset matrix for stereo render (selected eye) +RLAPI Matrix rlGetMatrixViewOffsetStereo(int eye) +{ + Matrix mat = rlMatrixIdentity(); +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + mat = RLGL.State.viewOffsetStereo[eye]; +#endif + return mat; +} + +// Set a custom modelview matrix (replaces internal modelview matrix) +void rlSetMatrixModelview(Matrix view) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + RLGL.State.modelview = view; +#endif +} + +// Set a custom projection matrix (replaces internal projection matrix) +void rlSetMatrixProjection(Matrix projection) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + RLGL.State.projection = projection; +#endif +} + +// Set eyes projection matrices for stereo rendering +void rlSetMatrixProjectionStereo(Matrix right, Matrix left) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + RLGL.State.projectionStereo[0] = right; + RLGL.State.projectionStereo[1] = left; +#endif +} + +// Set eyes view offsets matrices for stereo rendering +void rlSetMatrixViewOffsetStereo(Matrix right, Matrix left) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + RLGL.State.viewOffsetStereo[0] = right; + RLGL.State.viewOffsetStereo[1] = left; +#endif +} + +// Load and draw a quad in NDC +void rlLoadDrawQuad(void) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + unsigned int quadVAO = 0; + unsigned int quadVBO = 0; + + float vertices[] = { + // Positions Texcoords + -1.0f, 1.0f, 0.0f, 0.0f, 1.0f, + -1.0f, -1.0f, 0.0f, 0.0f, 0.0f, + 1.0f, 1.0f, 0.0f, 1.0f, 1.0f, + 1.0f, -1.0f, 0.0f, 1.0f, 0.0f, + }; + + // Gen VAO to contain VBO + glGenVertexArrays(1, &quadVAO); + glBindVertexArray(quadVAO); + + // Gen and fill vertex buffer (VBO) + glGenBuffers(1, &quadVBO); + glBindBuffer(GL_ARRAY_BUFFER, quadVBO); + glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), &vertices, GL_STATIC_DRAW); + + // Bind vertex attributes (position, texcoords) + glEnableVertexAttribArray(0); + glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 5*sizeof(float), (void *)0); // Positions + glEnableVertexAttribArray(1); + glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 5*sizeof(float), (void *)(3*sizeof(float))); // Texcoords + + // Draw quad + glBindVertexArray(quadVAO); + glDrawArrays(GL_TRIANGLE_STRIP, 0, 4); + glBindVertexArray(0); + + // Delete buffers (VBO and VAO) + glDeleteBuffers(1, &quadVBO); + glDeleteVertexArrays(1, &quadVAO); +#endif +} + +// Load and draw a cube in NDC +void rlLoadDrawCube(void) +{ +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) + unsigned int cubeVAO = 0; + unsigned int cubeVBO = 0; + + float vertices[] = { + // Positions Normals Texcoords + -1.0f, -1.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, + 1.0f, 1.0f, -1.0f, 0.0f, 0.0f, -1.0f, 1.0f, 1.0f, + 1.0f, -1.0f, -1.0f, 0.0f, 0.0f, -1.0f, 1.0f, 0.0f, + 1.0f, 1.0f, -1.0f, 0.0f, 0.0f, -1.0f, 1.0f, 1.0f, + -1.0f, -1.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 0.0f, + -1.0f, 1.0f, -1.0f, 0.0f, 0.0f, -1.0f, 0.0f, 1.0f, + -1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, + 1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 1.0f, 0.0f, + 1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 1.0f, 1.0f, + 1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 1.0f, 1.0f, + -1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, + -1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, + -1.0f, 1.0f, 1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 0.0f, + -1.0f, 1.0f, -1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 1.0f, + -1.0f, -1.0f, -1.0f, -1.0f, 0.0f, 0.0f, 0.0f, 1.0f, + -1.0f, -1.0f, -1.0f, -1.0f, 0.0f, 0.0f, 0.0f, 1.0f, + -1.0f, -1.0f, 1.0f, -1.0f, 0.0f, 0.0f, 0.0f, 0.0f, + -1.0f, 1.0f, 1.0f, -1.0f, 0.0f, 0.0f, 1.0f, 0.0f, + 1.0f, 1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, + 1.0f, -1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, + 1.0f, 1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 1.0f, + 1.0f, -1.0f, -1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 1.0f, + 1.0f, 1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 1.0f, 0.0f, + 1.0f, -1.0f, 1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, + -1.0f, -1.0f, -1.0f, 0.0f, -1.0f, 0.0f, 0.0f, 1.0f, + 1.0f, -1.0f, -1.0f, 0.0f, -1.0f, 0.0f, 1.0f, 1.0f, + 1.0f, -1.0f, 1.0f, 0.0f, -1.0f, 0.0f, 1.0f, 0.0f, + 1.0f, -1.0f, 1.0f, 0.0f, -1.0f, 0.0f, 1.0f, 0.0f, + -1.0f, -1.0f, 1.0f, 0.0f, -1.0f, 0.0f, 0.0f, 0.0f, + -1.0f, -1.0f, -1.0f, 0.0f, -1.0f, 0.0f, 0.0f, 1.0f, + -1.0f, 1.0f, -1.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, + 1.0f, 1.0f, 1.0f, 0.0f, 1.0f, 0.0f, 1.0f, 0.0f, + 1.0f, 1.0f, -1.0f, 0.0f, 1.0f, 0.0f, 1.0f, 1.0f, + 1.0f, 1.0f, 1.0f, 0.0f, 1.0f, 0.0f, 1.0f, 0.0f, + -1.0f, 1.0f, -1.0f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, + -1.0f, 1.0f, 1.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f + }; + + // Gen VAO to contain VBO + glGenVertexArrays(1, &cubeVAO); + glBindVertexArray(cubeVAO); + + // Gen and fill vertex buffer (VBO) + glGenBuffers(1, &cubeVBO); + glBindBuffer(GL_ARRAY_BUFFER, cubeVBO); + glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW); + + // Bind vertex attributes (position, normals, texcoords) + glBindVertexArray(cubeVAO); + glEnableVertexAttribArray(0); + glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 8*sizeof(float), (void *)0); // Positions + glEnableVertexAttribArray(1); + glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 8*sizeof(float), (void *)(3*sizeof(float))); // Normals + glEnableVertexAttribArray(2); + glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, 8*sizeof(float), (void *)(6*sizeof(float))); // Texcoords + glBindBuffer(GL_ARRAY_BUFFER, 0); + glBindVertexArray(0); + + // Draw cube + glBindVertexArray(cubeVAO); + glDrawArrays(GL_TRIANGLES, 0, 36); + glBindVertexArray(0); + + // Delete VBO and VAO + glDeleteBuffers(1, &cubeVBO); + glDeleteVertexArrays(1, &cubeVAO); +#endif +} + +// Get name string for pixel format +const char *rlGetPixelFormatName(unsigned int format) +{ + switch (format) + { + case RL_PIXELFORMAT_UNCOMPRESSED_GRAYSCALE: return "GRAYSCALE"; break; // 8 bit per pixel (no alpha) + case RL_PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA: return "GRAY_ALPHA"; break; // 8*2 bpp (2 channels) + case RL_PIXELFORMAT_UNCOMPRESSED_R5G6B5: return "R5G6B5"; break; // 16 bpp + case RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8: return "R8G8B8"; break; // 24 bpp + case RL_PIXELFORMAT_UNCOMPRESSED_R5G5B5A1: return "R5G5B5A1"; break; // 16 bpp (1 bit alpha) + case RL_PIXELFORMAT_UNCOMPRESSED_R4G4B4A4: return "R4G4B4A4"; break; // 16 bpp (4 bit alpha) + case RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8A8: return "R8G8B8A8"; break; // 32 bpp + case RL_PIXELFORMAT_UNCOMPRESSED_R32: return "R32"; break; // 32 bpp (1 channel - float) + case RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32: return "R32G32B32"; break; // 32*3 bpp (3 channels - float) + case RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32A32: return "R32G32B32A32"; break; // 32*4 bpp (4 channels - float) + case RL_PIXELFORMAT_COMPRESSED_DXT1_RGB: return "DXT1_RGB"; break; // 4 bpp (no alpha) + case RL_PIXELFORMAT_COMPRESSED_DXT1_RGBA: return "DXT1_RGBA"; break; // 4 bpp (1 bit alpha) + case RL_PIXELFORMAT_COMPRESSED_DXT3_RGBA: return "DXT3_RGBA"; break; // 8 bpp + case RL_PIXELFORMAT_COMPRESSED_DXT5_RGBA: return "DXT5_RGBA"; break; // 8 bpp + case RL_PIXELFORMAT_COMPRESSED_ETC1_RGB: return "ETC1_RGB"; break; // 4 bpp + case RL_PIXELFORMAT_COMPRESSED_ETC2_RGB: return "ETC2_RGB"; break; // 4 bpp + case RL_PIXELFORMAT_COMPRESSED_ETC2_EAC_RGBA: return "ETC2_RGBA"; break; // 8 bpp + case RL_PIXELFORMAT_COMPRESSED_PVRT_RGB: return "PVRT_RGB"; break; // 4 bpp + case RL_PIXELFORMAT_COMPRESSED_PVRT_RGBA: return "PVRT_RGBA"; break; // 4 bpp + case RL_PIXELFORMAT_COMPRESSED_ASTC_4x4_RGBA: return "ASTC_4x4_RGBA"; break; // 8 bpp + case RL_PIXELFORMAT_COMPRESSED_ASTC_8x8_RGBA: return "ASTC_8x8_RGBA"; break; // 2 bpp + default: return "UNKNOWN"; break; + } +} + +//---------------------------------------------------------------------------------- +// Module specific Functions Definition +//---------------------------------------------------------------------------------- +#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2) +// Load default shader (just vertex positioning and texture coloring) +// NOTE: This shader program is used for internal buffers +// NOTE: Loaded: RLGL.State.defaultShaderId, RLGL.State.defaultShaderLocs +static void rlLoadShaderDefault(void) +{ + RLGL.State.defaultShaderLocs = (int *)RL_CALLOC(RL_MAX_SHADER_LOCATIONS, sizeof(int)); + + // NOTE: All locations must be reseted to -1 (no location) + for (int i = 0; i < RL_MAX_SHADER_LOCATIONS; i++) RLGL.State.defaultShaderLocs[i] = -1; + + // Vertex shader directly defined, no external file required + const char *defaultVShaderCode = +#if defined(GRAPHICS_API_OPENGL_21) + "#version 120 \n" + "attribute vec3 vertexPosition; \n" + "attribute vec2 vertexTexCoord; \n" + "attribute vec4 vertexColor; \n" + "varying vec2 fragTexCoord; \n" + "varying vec4 fragColor; \n" +#elif defined(GRAPHICS_API_OPENGL_33) + "#version 330 \n" + "in vec3 vertexPosition; \n" + "in vec2 vertexTexCoord; \n" + "in vec4 vertexColor; \n" + "out vec2 fragTexCoord; \n" + "out vec4 fragColor; \n" +#endif +#if defined(GRAPHICS_API_OPENGL_ES2) + "#version 100 \n" + "attribute vec3 vertexPosition; \n" + "attribute vec2 vertexTexCoord; \n" + "attribute vec4 vertexColor; \n" + "varying vec2 fragTexCoord; \n" + "varying vec4 fragColor; \n" +#endif + "uniform mat4 mvp; \n" + "void main() \n" + "{ \n" + " fragTexCoord = vertexTexCoord; \n" + " fragColor = vertexColor; \n" + " gl_Position = mvp*vec4(vertexPosition, 1.0); \n" + "} \n"; + + // Fragment shader directly defined, no external file required + const char *defaultFShaderCode = +#if defined(GRAPHICS_API_OPENGL_21) + "#version 120 \n" + "varying vec2 fragTexCoord; \n" + "varying vec4 fragColor; \n" + "uniform sampler2D texture0; \n" + "uniform vec4 colDiffuse; \n" + "void main() \n" + "{ \n" + " vec4 texelColor = texture2D(texture0, fragTexCoord); \n" + " gl_FragColor = texelColor*colDiffuse*fragColor; \n" + "} \n"; +#elif defined(GRAPHICS_API_OPENGL_33) + "#version 330 \n" + "in vec2 fragTexCoord; \n" + "in vec4 fragColor; \n" + "out vec4 finalColor; \n" + "uniform sampler2D texture0; \n" + "uniform vec4 colDiffuse; \n" + "void main() \n" + "{ \n" + " vec4 texelColor = texture(texture0, fragTexCoord); \n" + " finalColor = texelColor*colDiffuse*fragColor; \n" + "} \n"; +#endif +#if defined(GRAPHICS_API_OPENGL_ES2) + "#version 100 \n" + "precision mediump float; \n" // Precision required for OpenGL ES2 (WebGL) + "varying vec2 fragTexCoord; \n" + "varying vec4 fragColor; \n" + "uniform sampler2D texture0; \n" + "uniform vec4 colDiffuse; \n" + "void main() \n" + "{ \n" + " vec4 texelColor = texture2D(texture0, fragTexCoord); \n" + " gl_FragColor = texelColor*colDiffuse*fragColor; \n" + "} \n"; +#endif + + // NOTE: Compiled vertex/fragment shaders are kept for re-use + RLGL.State.defaultVShaderId = rlCompileShader(defaultVShaderCode, GL_VERTEX_SHADER); // Compile default vertex shader + RLGL.State.defaultFShaderId = rlCompileShader(defaultFShaderCode, GL_FRAGMENT_SHADER); // Compile default fragment shader + + RLGL.State.defaultShaderId = rlLoadShaderProgram(RLGL.State.defaultVShaderId, RLGL.State.defaultFShaderId); + + if (RLGL.State.defaultShaderId > 0) + { + TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Default shader loaded successfully", RLGL.State.defaultShaderId); + + // Set default shader locations: attributes locations + RLGL.State.defaultShaderLocs[RL_SHADER_LOC_VERTEX_POSITION] = glGetAttribLocation(RLGL.State.defaultShaderId, "vertexPosition"); + RLGL.State.defaultShaderLocs[RL_SHADER_LOC_VERTEX_TEXCOORD01] = glGetAttribLocation(RLGL.State.defaultShaderId, "vertexTexCoord"); + RLGL.State.defaultShaderLocs[RL_SHADER_LOC_VERTEX_COLOR] = glGetAttribLocation(RLGL.State.defaultShaderId, "vertexColor"); + + // Set default shader locations: uniform locations + RLGL.State.defaultShaderLocs[RL_SHADER_LOC_MATRIX_MVP] = glGetUniformLocation(RLGL.State.defaultShaderId, "mvp"); + RLGL.State.defaultShaderLocs[RL_SHADER_LOC_COLOR_DIFFUSE] = glGetUniformLocation(RLGL.State.defaultShaderId, "colDiffuse"); + RLGL.State.defaultShaderLocs[RL_SHADER_LOC_MAP_DIFFUSE] = glGetUniformLocation(RLGL.State.defaultShaderId, "texture0"); + } + else TRACELOG(RL_LOG_WARNING, "SHADER: [ID %i] Failed to load default shader", RLGL.State.defaultShaderId); +} + +// Unload default shader +// NOTE: Unloads: RLGL.State.defaultShaderId, RLGL.State.defaultShaderLocs +static void rlUnloadShaderDefault(void) +{ + glUseProgram(0); + + glDetachShader(RLGL.State.defaultShaderId, RLGL.State.defaultVShaderId); + glDetachShader(RLGL.State.defaultShaderId, RLGL.State.defaultFShaderId); + glDeleteShader(RLGL.State.defaultVShaderId); + glDeleteShader(RLGL.State.defaultFShaderId); + + glDeleteProgram(RLGL.State.defaultShaderId); + + RL_FREE(RLGL.State.defaultShaderLocs); + + TRACELOG(RL_LOG_INFO, "SHADER: [ID %i] Default shader unloaded successfully", RLGL.State.defaultShaderId); +} + +#if defined(RLGL_SHOW_GL_DETAILS_INFO) +// Get compressed format official GL identifier name +static char *rlGetCompressedFormatName(int format) +{ + static char compName[64] = { 0 }; + memset(compName, 0, 64); + + switch (format) + { + // GL_EXT_texture_compression_s3tc + case 0x83F0: strcpy(compName, "GL_COMPRESSED_RGB_S3TC_DXT1_EXT"); break; + case 0x83F1: strcpy(compName, "GL_COMPRESSED_RGBA_S3TC_DXT1_EXT"); break; + case 0x83F2: strcpy(compName, "GL_COMPRESSED_RGBA_S3TC_DXT3_EXT"); break; + case 0x83F3: strcpy(compName, "GL_COMPRESSED_RGBA_S3TC_DXT5_EXT"); break; + // GL_3DFX_texture_compression_FXT1 + case 0x86B0: strcpy(compName, "GL_COMPRESSED_RGB_FXT1_3DFX"); break; + case 0x86B1: strcpy(compName, "GL_COMPRESSED_RGBA_FXT1_3DFX"); break; + // GL_IMG_texture_compression_pvrtc + case 0x8C00: strcpy(compName, "GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG"); break; + case 0x8C01: strcpy(compName, "GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG"); break; + case 0x8C02: strcpy(compName, "GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG"); break; + case 0x8C03: strcpy(compName, "GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG"); break; + // GL_OES_compressed_ETC1_RGB8_texture + case 0x8D64: strcpy(compName, "GL_ETC1_RGB8_OES"); break; + // GL_ARB_texture_compression_rgtc + case 0x8DBB: strcpy(compName, "GL_COMPRESSED_RED_RGTC1"); break; + case 0x8DBC: strcpy(compName, "GL_COMPRESSED_SIGNED_RED_RGTC1"); break; + case 0x8DBD: strcpy(compName, "GL_COMPRESSED_RG_RGTC2"); break; + case 0x8DBE: strcpy(compName, "GL_COMPRESSED_SIGNED_RG_RGTC2"); break; + // GL_ARB_texture_compression_bptc + case 0x8E8C: strcpy(compName, "GL_COMPRESSED_RGBA_BPTC_UNORM_ARB"); break; + case 0x8E8D: strcpy(compName, "GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM_ARB"); break; + case 0x8E8E: strcpy(compName, "GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB"); break; + case 0x8E8F: strcpy(compName, "GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_ARB"); break; + // GL_ARB_ES3_compatibility + case 0x9274: strcpy(compName, "GL_COMPRESSED_RGB8_ETC2"); break; + case 0x9275: strcpy(compName, "GL_COMPRESSED_SRGB8_ETC2"); break; + case 0x9276: strcpy(compName, "GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2"); break; + case 0x9277: strcpy(compName, "GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2"); break; + case 0x9278: strcpy(compName, "GL_COMPRESSED_RGBA8_ETC2_EAC"); break; + case 0x9279: strcpy(compName, "GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC"); break; + case 0x9270: strcpy(compName, "GL_COMPRESSED_R11_EAC"); break; + case 0x9271: strcpy(compName, "GL_COMPRESSED_SIGNED_R11_EAC"); break; + case 0x9272: strcpy(compName, "GL_COMPRESSED_RG11_EAC"); break; + case 0x9273: strcpy(compName, "GL_COMPRESSED_SIGNED_RG11_EAC"); break; + // GL_KHR_texture_compression_astc_hdr + case 0x93B0: strcpy(compName, "GL_COMPRESSED_RGBA_ASTC_4x4_KHR"); break; + case 0x93B1: strcpy(compName, "GL_COMPRESSED_RGBA_ASTC_5x4_KHR"); break; + case 0x93B2: strcpy(compName, "GL_COMPRESSED_RGBA_ASTC_5x5_KHR"); break; + case 0x93B3: strcpy(compName, "GL_COMPRESSED_RGBA_ASTC_6x5_KHR"); break; + case 0x93B4: strcpy(compName, "GL_COMPRESSED_RGBA_ASTC_6x6_KHR"); break; + case 0x93B5: strcpy(compName, "GL_COMPRESSED_RGBA_ASTC_8x5_KHR"); break; + case 0x93B6: strcpy(compName, "GL_COMPRESSED_RGBA_ASTC_8x6_KHR"); break; + case 0x93B7: strcpy(compName, "GL_COMPRESSED_RGBA_ASTC_8x8_KHR"); break; + case 0x93B8: strcpy(compName, "GL_COMPRESSED_RGBA_ASTC_10x5_KHR"); break; + case 0x93B9: strcpy(compName, "GL_COMPRESSED_RGBA_ASTC_10x6_KHR"); break; + case 0x93BA: strcpy(compName, "GL_COMPRESSED_RGBA_ASTC_10x8_KHR"); break; + case 0x93BB: strcpy(compName, "GL_COMPRESSED_RGBA_ASTC_10x10_KHR"); break; + case 0x93BC: strcpy(compName, "GL_COMPRESSED_RGBA_ASTC_12x10_KHR"); break; + case 0x93BD: strcpy(compName, "GL_COMPRESSED_RGBA_ASTC_12x12_KHR"); break; + case 0x93D0: strcpy(compName, "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR"); break; + case 0x93D1: strcpy(compName, "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR"); break; + case 0x93D2: strcpy(compName, "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR"); break; + case 0x93D3: strcpy(compName, "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR"); break; + case 0x93D4: strcpy(compName, "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR"); break; + case 0x93D5: strcpy(compName, "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR"); break; + case 0x93D6: strcpy(compName, "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR"); break; + case 0x93D7: strcpy(compName, "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR"); break; + case 0x93D8: strcpy(compName, "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR"); break; + case 0x93D9: strcpy(compName, "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR"); break; + case 0x93DA: strcpy(compName, "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR"); break; + case 0x93DB: strcpy(compName, "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR"); break; + case 0x93DC: strcpy(compName, "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR"); break; + case 0x93DD: strcpy(compName, "GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR"); break; + default: strcpy(compName, "GL_COMPRESSED_UNKNOWN"); break; + } + + return compName; +} +#endif // RLGL_SHOW_GL_DETAILS_INFO + +#endif // GRAPHICS_API_OPENGL_33 || GRAPHICS_API_OPENGL_ES2 + +#if defined(GRAPHICS_API_OPENGL_11) +// Mipmaps data is generated after image data +// NOTE: Only works with RGBA (4 bytes) data! +static int rlGenTextureMipmapsData(unsigned char *data, int baseWidth, int baseHeight) +{ + int mipmapCount = 1; // Required mipmap levels count (including base level) + int width = baseWidth; + int height = baseHeight; + int size = baseWidth*baseHeight*4; // Size in bytes (will include mipmaps...), RGBA only + + // Count mipmap levels required + while ((width != 1) && (height != 1)) + { + width /= 2; + height /= 2; + + TRACELOGD("TEXTURE: Next mipmap size: %i x %i", width, height); + + mipmapCount++; + + size += (width*height*4); // Add mipmap size (in bytes) + } + + TRACELOGD("TEXTURE: Total mipmaps required: %i", mipmapCount); + TRACELOGD("TEXTURE: Total size of data required: %i", size); + + unsigned char *temp = RL_REALLOC(data, size); + + if (temp != NULL) data = temp; + else TRACELOG(RL_LOG_WARNING, "TEXTURE: Failed to re-allocate required mipmaps memory"); + + width = baseWidth; + height = baseHeight; + size = (width*height*4); // RGBA: 4 bytes + + // Generate mipmaps + // NOTE: Every mipmap data is stored after data (RGBA - 4 bytes) + unsigned char *image = (unsigned char *)RL_MALLOC(width*height*4); + unsigned char *mipmap = NULL; + int offset = 0; + + for (int i = 0; i < size; i += 4) + { + image[i] = data[i]; + image[i + 1] = data[i + 1]; + image[i + 2] = data[i + 2]; + image[i + 3] = data[i + 3]; + } + + TRACELOGD("TEXTURE: Mipmap base size (%ix%i)", width, height); + + for (int mip = 1; mip < mipmapCount; mip++) + { + mipmap = rlGenNextMipmapData(image, width, height); + + offset += (width*height*4); // Size of last mipmap + + width /= 2; + height /= 2; + size = (width*height*4); // Mipmap size to store after offset + + // Add mipmap to data + for (int i = 0; i < size; i += 4) + { + data[offset + i] = mipmap[i]; + data[offset + i + 1] = mipmap[i + 1]; + data[offset + i + 2] = mipmap[i + 2]; + data[offset + i + 3] = mipmap[i + 3]; + } + + RL_FREE(image); + + image = mipmap; + mipmap = NULL; + } + + RL_FREE(mipmap); // free mipmap data + + return mipmapCount; +} + +// Manual mipmap generation (basic scaling algorithm) +static unsigned char *rlGenNextMipmapData(unsigned char *srcData, int srcWidth, int srcHeight) +{ + int x2 = 0; + int y2 = 0; + unsigned char prow[4]; + unsigned char pcol[4]; + + int width = srcWidth/2; + int height = srcHeight/2; + + unsigned char *mipmap = (unsigned char *)RL_MALLOC(width*height*4); + + // Scaling algorithm works perfectly (box-filter) + for (int y = 0; y < height; y++) + { + y2 = 2*y; + + for (int x = 0; x < width; x++) + { + x2 = 2*x; + + prow[0] = (srcData[(y2*srcWidth + x2)*4 + 0] + srcData[(y2*srcWidth + x2 + 1)*4 + 0])/2; + prow[1] = (srcData[(y2*srcWidth + x2)*4 + 1] + srcData[(y2*srcWidth + x2 + 1)*4 + 1])/2; + prow[2] = (srcData[(y2*srcWidth + x2)*4 + 2] + srcData[(y2*srcWidth + x2 + 1)*4 + 2])/2; + prow[3] = (srcData[(y2*srcWidth + x2)*4 + 3] + srcData[(y2*srcWidth + x2 + 1)*4 + 3])/2; + + pcol[0] = (srcData[((y2 + 1)*srcWidth + x2)*4 + 0] + srcData[((y2 + 1)*srcWidth + x2 + 1)*4 + 0])/2; + pcol[1] = (srcData[((y2 + 1)*srcWidth + x2)*4 + 1] + srcData[((y2 + 1)*srcWidth + x2 + 1)*4 + 1])/2; + pcol[2] = (srcData[((y2 + 1)*srcWidth + x2)*4 + 2] + srcData[((y2 + 1)*srcWidth + x2 + 1)*4 + 2])/2; + pcol[3] = (srcData[((y2 + 1)*srcWidth + x2)*4 + 3] + srcData[((y2 + 1)*srcWidth + x2 + 1)*4 + 3])/2; + + mipmap[(y*width + x)*4 + 0] = (prow[0] + pcol[0])/2; + mipmap[(y*width + x)*4 + 1] = (prow[1] + pcol[1])/2; + mipmap[(y*width + x)*4 + 2] = (prow[2] + pcol[2])/2; + mipmap[(y*width + x)*4 + 3] = (prow[3] + pcol[3])/2; + } + } + + TRACELOGD("TEXTURE: Mipmap generated successfully (%ix%i)", width, height); + + return mipmap; +} +#endif // GRAPHICS_API_OPENGL_11 + +// Get pixel data size in bytes (image or texture) +// NOTE: Size depends on pixel format +static int rlGetPixelDataSize(int width, int height, int format) +{ + int dataSize = 0; // Size in bytes + int bpp = 0; // Bits per pixel + + switch (format) + { + case RL_PIXELFORMAT_UNCOMPRESSED_GRAYSCALE: bpp = 8; break; + case RL_PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA: + case RL_PIXELFORMAT_UNCOMPRESSED_R5G6B5: + case RL_PIXELFORMAT_UNCOMPRESSED_R5G5B5A1: + case RL_PIXELFORMAT_UNCOMPRESSED_R4G4B4A4: bpp = 16; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8A8: bpp = 32; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R8G8B8: bpp = 24; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R32: bpp = 32; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32: bpp = 32*3; break; + case RL_PIXELFORMAT_UNCOMPRESSED_R32G32B32A32: bpp = 32*4; break; + case RL_PIXELFORMAT_COMPRESSED_DXT1_RGB: + case RL_PIXELFORMAT_COMPRESSED_DXT1_RGBA: + case RL_PIXELFORMAT_COMPRESSED_ETC1_RGB: + case RL_PIXELFORMAT_COMPRESSED_ETC2_RGB: + case RL_PIXELFORMAT_COMPRESSED_PVRT_RGB: + case RL_PIXELFORMAT_COMPRESSED_PVRT_RGBA: bpp = 4; break; + case RL_PIXELFORMAT_COMPRESSED_DXT3_RGBA: + case RL_PIXELFORMAT_COMPRESSED_DXT5_RGBA: + case RL_PIXELFORMAT_COMPRESSED_ETC2_EAC_RGBA: + case RL_PIXELFORMAT_COMPRESSED_ASTC_4x4_RGBA: bpp = 8; break; + case RL_PIXELFORMAT_COMPRESSED_ASTC_8x8_RGBA: bpp = 2; break; + default: break; + } + + dataSize = width*height*bpp/8; // Total data size in bytes + + // Most compressed formats works on 4x4 blocks, + // if texture is smaller, minimum dataSize is 8 or 16 + if ((width < 4) && (height < 4)) + { + if ((format >= RL_PIXELFORMAT_COMPRESSED_DXT1_RGB) && (format < RL_PIXELFORMAT_COMPRESSED_DXT3_RGBA)) dataSize = 8; + else if ((format >= RL_PIXELFORMAT_COMPRESSED_DXT3_RGBA) && (format < RL_PIXELFORMAT_COMPRESSED_ASTC_8x8_RGBA)) dataSize = 16; + } + + return dataSize; +} + +// Auxiliar math functions + +// Get identity matrix +static Matrix rlMatrixIdentity(void) +{ + Matrix result = { + 1.0f, 0.0f, 0.0f, 0.0f, + 0.0f, 1.0f, 0.0f, 0.0f, + 0.0f, 0.0f, 1.0f, 0.0f, + 0.0f, 0.0f, 0.0f, 1.0f + }; + + return result; +} + +// Get two matrix multiplication +// NOTE: When multiplying matrices... the order matters! +static Matrix rlMatrixMultiply(Matrix left, Matrix right) +{ + Matrix result = { 0 }; + + result.m0 = left.m0*right.m0 + left.m1*right.m4 + left.m2*right.m8 + left.m3*right.m12; + result.m1 = left.m0*right.m1 + left.m1*right.m5 + left.m2*right.m9 + left.m3*right.m13; + result.m2 = left.m0*right.m2 + left.m1*right.m6 + left.m2*right.m10 + left.m3*right.m14; + result.m3 = left.m0*right.m3 + left.m1*right.m7 + left.m2*right.m11 + left.m3*right.m15; + result.m4 = left.m4*right.m0 + left.m5*right.m4 + left.m6*right.m8 + left.m7*right.m12; + result.m5 = left.m4*right.m1 + left.m5*right.m5 + left.m6*right.m9 + left.m7*right.m13; + result.m6 = left.m4*right.m2 + left.m5*right.m6 + left.m6*right.m10 + left.m7*right.m14; + result.m7 = left.m4*right.m3 + left.m5*right.m7 + left.m6*right.m11 + left.m7*right.m15; + result.m8 = left.m8*right.m0 + left.m9*right.m4 + left.m10*right.m8 + left.m11*right.m12; + result.m9 = left.m8*right.m1 + left.m9*right.m5 + left.m10*right.m9 + left.m11*right.m13; + result.m10 = left.m8*right.m2 + left.m9*right.m6 + left.m10*right.m10 + left.m11*right.m14; + result.m11 = left.m8*right.m3 + left.m9*right.m7 + left.m10*right.m11 + left.m11*right.m15; + result.m12 = left.m12*right.m0 + left.m13*right.m4 + left.m14*right.m8 + left.m15*right.m12; + result.m13 = left.m12*right.m1 + left.m13*right.m5 + left.m14*right.m9 + left.m15*right.m13; + result.m14 = left.m12*right.m2 + left.m13*right.m6 + left.m14*right.m10 + left.m15*right.m14; + result.m15 = left.m12*right.m3 + left.m13*right.m7 + left.m14*right.m11 + left.m15*right.m15; + + return result; +} + +#endif // RLGL_IMPLEMENTATION diff --git a/include/rmem.h b/include/rmem.h new file mode 100644 index 0000000..43005cf --- /dev/null +++ b/include/rmem.h @@ -0,0 +1,751 @@ +/********************************************************************************************** +* +* rmem - raylib memory pool and objects pool +* +* A quick, efficient, and minimal free list and arena-based allocator +* +* PURPOSE: +* - A quicker, efficient memory allocator alternative to 'malloc' and friends. +* - Reduce the possibilities of memory leaks for beginner developers using Raylib. +* - Being able to flexibly range check memory if necessary. +* +* CONFIGURATION: +* +* #define RMEM_IMPLEMENTATION +* Generates the implementation of the library into the included file. +* If not defined, the library is in header only mode and can be included in other headers +* or source files without problems. But only ONE file should hold the implementation. +* +* +* LICENSE: zlib/libpng +* +* Copyright (c) 2019 Kevin 'Assyrianic' Yonan (@assyrianic) and reviewed by Ramon Santamaria (@raysan5) +* +* This software is provided "as-is", without any express or implied warranty. In no event +* will the authors be held liable for any damages arising from the use of this software. +* +* Permission is granted to anyone to use this software for any purpose, including commercial +* applications, and to alter it and redistribute it freely, subject to the following restrictions: +* +* 1. The origin of this software must not be misrepresented; you must not claim that you +* wrote the original software. If you use this software in a product, an acknowledgment +* in the product documentation would be appreciated but is not required. +* +* 2. Altered source versions must be plainly marked as such, and must not be misrepresented +* as being the original software. +* +* 3. This notice may not be removed or altered from any source distribution. +* +**********************************************************************************************/ + +#ifndef RMEM_H +#define RMEM_H + +#include +#include + +//---------------------------------------------------------------------------------- +// Defines and Macros +//---------------------------------------------------------------------------------- +#if defined(_WIN32) && defined(BUILD_LIBTYPE_SHARED) + #define RMEMAPI __declspec(dllexport) // We are building library as a Win32 shared library (.dll) +#elif defined(_WIN32) && defined(USE_LIBTYPE_SHARED) + #define RMEMAPI __declspec(dllimport) // We are using library as a Win32 shared library (.dll) +#else + #define RMEMAPI // We are building or using library as a static library (or Linux shared library) +#endif + +#define RMEM_VERSION "v1.3" // changelog at bottom of header. + +//---------------------------------------------------------------------------------- +// Types and Structures Definition +//---------------------------------------------------------------------------------- + +// Memory Pool +typedef struct MemNode MemNode; +struct MemNode { + size_t size; + MemNode *next, *prev; +}; + +// Freelist implementation +typedef struct AllocList { + MemNode *head, *tail; + size_t len; +} AllocList; + +// Arena allocator. +typedef struct Arena { + uintptr_t mem, offs; + size_t size; +} Arena; + + +enum { + MEMPOOL_BUCKET_SIZE = 8, + MEMPOOL_BUCKET_BITS = (sizeof(uintptr_t) >> 1) + 1, + MEM_SPLIT_THRESHOLD = sizeof(uintptr_t) * 4 +}; + +typedef struct MemPool { + AllocList large, buckets[MEMPOOL_BUCKET_SIZE]; + Arena arena; +} MemPool; + + +// Object Pool +typedef struct ObjPool { + uintptr_t mem, offs; + size_t objSize, freeBlocks, memSize; +} ObjPool; + + +// Double-Ended Stack aka Deque +typedef struct BiStack { + uintptr_t mem, front, back; + size_t size; +} BiStack; + + +#if defined(__cplusplus) +extern "C" { // Prevents name mangling of functions +#endif + +//------------------------------------------------------------------------------------ +// Functions Declaration - Memory Pool +//------------------------------------------------------------------------------------ +RMEMAPI MemPool CreateMemPool(size_t bytes); +RMEMAPI MemPool CreateMemPoolFromBuffer(void *buf, size_t bytes); +RMEMAPI void DestroyMemPool(MemPool *mempool); + +RMEMAPI void *MemPoolAlloc(MemPool *mempool, size_t bytes); +RMEMAPI void *MemPoolRealloc(MemPool *mempool, void *ptr, size_t bytes); +RMEMAPI void MemPoolFree(MemPool *mempool, void *ptr); +RMEMAPI void MemPoolCleanUp(MemPool *mempool, void **ptrref); +RMEMAPI void MemPoolReset(MemPool *mempool); +RMEMAPI size_t GetMemPoolFreeMemory(const MemPool mempool); + +//------------------------------------------------------------------------------------ +// Functions Declaration - Object Pool +//------------------------------------------------------------------------------------ +RMEMAPI ObjPool CreateObjPool(size_t objsize, size_t len); +RMEMAPI ObjPool CreateObjPoolFromBuffer(void *buf, size_t objsize, size_t len); +RMEMAPI void DestroyObjPool(ObjPool *objpool); + +RMEMAPI void *ObjPoolAlloc(ObjPool *objpool); +RMEMAPI void ObjPoolFree(ObjPool *objpool, void *ptr); +RMEMAPI void ObjPoolCleanUp(ObjPool *objpool, void **ptrref); + +//------------------------------------------------------------------------------------ +// Functions Declaration - Double-Ended Stack +//------------------------------------------------------------------------------------ +RMEMAPI BiStack CreateBiStack(size_t len); +RMEMAPI BiStack CreateBiStackFromBuffer(void *buf, size_t len); +RMEMAPI void DestroyBiStack(BiStack *destack); + +RMEMAPI void *BiStackAllocFront(BiStack *destack, size_t len); +RMEMAPI void *BiStackAllocBack(BiStack *destack, size_t len); + +RMEMAPI void BiStackResetFront(BiStack *destack); +RMEMAPI void BiStackResetBack(BiStack *destack); +RMEMAPI void BiStackResetAll(BiStack *destack); + +RMEMAPI intptr_t BiStackMargins(BiStack destack); + +#ifdef __cplusplus +} +#endif + +#endif // RMEM_H + +/*********************************************************************************** +* +* RMEM IMPLEMENTATION +* +************************************************************************************/ + +#if defined(RMEM_IMPLEMENTATION) + +#include // Required for: +#include // Required for: +#include // Required for: + +//---------------------------------------------------------------------------------- +// Defines and Macros +//---------------------------------------------------------------------------------- + +// Make sure restrict type qualifier for pointers is defined +// NOTE: Not supported by C++, it is a C only keyword +#if defined(_WIN32) || defined(_WIN64) || defined(__CYGWIN__) || defined(_MSC_VER) + #ifndef restrict + #define restrict __restrict + #endif +#endif + +//---------------------------------------------------------------------------------- +// Global Variables Definition +//---------------------------------------------------------------------------------- +// ... + +//---------------------------------------------------------------------------------- +// Module specific Functions Declaration +//---------------------------------------------------------------------------------- +static inline size_t __AlignSize(const size_t size, const size_t align) +{ + return (size + (align - 1)) & -align; +} + +static MemNode *__SplitMemNode(MemNode *const node, const size_t bytes) +{ + uintptr_t n = ( uintptr_t )node; + MemNode *const r = ( MemNode* )(n + (node->size - bytes)); + node->size -= bytes; + r->size = bytes; + return r; +} + +static void __InsertMemNodeBefore(AllocList *const list, MemNode *const insert, MemNode *const curr) +{ + insert->next = curr; + if (curr->prev==NULL) list->head = insert; + else + { + insert->prev = curr->prev; + curr->prev->next = insert; + } + curr->prev = insert; +} + +static void __ReplaceMemNode(MemNode *const old, MemNode *const replace) +{ + replace->prev = old->prev; + replace->next = old->next; + if( old->prev != NULL ) + old->prev->next = replace; + if( old->next != NULL ) + old->next->prev = replace; +} + + +static MemNode *__RemoveMemNode(AllocList *const list, MemNode *const node) +{ + if (node->prev != NULL) node->prev->next = node->next; + else + { + list->head = node->next; + if (list->head != NULL) list->head->prev = NULL; + else list->tail = NULL; + } + + if (node->next != NULL) node->next->prev = node->prev; + else + { + list->tail = node->prev; + if (list->tail != NULL) list->tail->next = NULL; + else list->head = NULL; + } + list->len--; + return node; +} + +static MemNode *__FindMemNode(AllocList *const list, const size_t bytes) +{ + for (MemNode *node = list->head; node != NULL; node = node->next) + { + if (node->size < bytes) continue; + // close in size - reduce fragmentation by not splitting. + else if (node->size <= bytes + MEM_SPLIT_THRESHOLD) return __RemoveMemNode(list, node); + else return __SplitMemNode(node, bytes); + } + return NULL; +} + +static void __InsertMemNode(MemPool *const mempool, AllocList *const list, MemNode *const node, const bool is_bucket) +{ + if (list->head == NULL) + { + list->head = node; + list->len++; + } + else + { + for (MemNode *iter = list->head; iter != NULL; iter = iter->next) + { + if (( uintptr_t )iter == mempool->arena.offs) + { + mempool->arena.offs += iter->size; + __RemoveMemNode(list, iter); + iter = list->head; + if (iter == NULL) { + list->head = node; + return; + } + } + const uintptr_t inode = ( uintptr_t )node; + const uintptr_t iiter = ( uintptr_t )iter; + const uintptr_t iter_end = iiter + iter->size; + const uintptr_t node_end = inode + node->size; + if (iter==node) return; + else if (iter < node) + { + // node was coalesced prior. + if (iter_end > inode) return; + else if (iter_end==inode && !is_bucket) + { + // if we can coalesce, do so. + iter->size += node->size; + return; + } + else if (iter->next == NULL) + { + // we reached the end of the free list -> append the node + iter->next = node; + node->prev = iter; + list->len++; + return; + } + } + else if (iter > node) + { + // Address sort, lowest to highest aka ascending order. + if (iiter < node_end) return; + else if (iter==list->head && !is_bucket) + { + if (iter_end==inode) iter->size += node->size; + else if (node_end==iiter) + { + node->size += list->head->size; + node->next = list->head->next; + node->prev = NULL; + list->head = node; + } + else + { + node->next = iter; + node->prev = NULL; + iter->prev = node; + list->head = node; + list->len++; + } + return; + } + else if (iter_end==inode && !is_bucket) + { + // if we can coalesce, do so. + iter->size += node->size; + return; + } + else + { + __InsertMemNodeBefore(list, node, iter); + list->len++; + return; + } + } + } + } +} + +//---------------------------------------------------------------------------------- +// Module Functions Definition - Memory Pool +//---------------------------------------------------------------------------------- + +MemPool CreateMemPool(const size_t size) +{ + MemPool mempool = { 0 }; + + if (size == 0) return mempool; + else + { + // Align the mempool size to at least the size of an alloc node. + uint8_t *const restrict buf = malloc(size*sizeof *buf); + if (buf==NULL) return mempool; + else + { + mempool.arena.size = size; + mempool.arena.mem = ( uintptr_t )buf; + mempool.arena.offs = mempool.arena.mem + mempool.arena.size; + return mempool; + } + } +} + +MemPool CreateMemPoolFromBuffer(void *const restrict buf, const size_t size) +{ + MemPool mempool = { 0 }; + if ((size == 0) || (buf == NULL) || (size <= sizeof(MemNode))) return mempool; + else + { + mempool.arena.size = size; + mempool.arena.mem = ( uintptr_t )buf; + mempool.arena.offs = mempool.arena.mem + mempool.arena.size; + return mempool; + } +} + +void DestroyMemPool(MemPool *const restrict mempool) +{ + if (mempool->arena.mem == 0) return; + else + { + void *const restrict ptr = ( void* )mempool->arena.mem; + free(ptr); + *mempool = (MemPool){ 0 }; + } +} + +void *MemPoolAlloc(MemPool *const mempool, const size_t size) +{ + if ((size == 0) || (size > mempool->arena.size)) return NULL; + else + { + MemNode *new_mem = NULL; + const size_t ALLOC_SIZE = __AlignSize(size + sizeof *new_mem, sizeof(intptr_t)); + const size_t BUCKET_SLOT = (ALLOC_SIZE >> MEMPOOL_BUCKET_BITS) - 1; + + // If the size is small enough, let's check if our buckets has a fitting memory block. + if (BUCKET_SLOT < MEMPOOL_BUCKET_SIZE) + { + new_mem = __FindMemNode(&mempool->buckets[BUCKET_SLOT], ALLOC_SIZE); + } + else if (mempool->large.head != NULL) + { + new_mem = __FindMemNode(&mempool->large, ALLOC_SIZE); + } + + if (new_mem == NULL) + { + // not enough memory to support the size! + if ((mempool->arena.offs - ALLOC_SIZE) < mempool->arena.mem) return NULL; + else + { + // Couldn't allocate from a freelist, allocate from available mempool. + // Subtract allocation size from the mempool. + mempool->arena.offs -= ALLOC_SIZE; + + // Use the available mempool space as the new node. + new_mem = ( MemNode* )mempool->arena.offs; + new_mem->size = ALLOC_SIZE; + } + } + + // Visual of the allocation block. + // -------------- + // | mem size | lowest addr of block + // | next node | 12 byte (32-bit) header + // | prev node | 24 byte (64-bit) header + // |------------| + // | alloc'd | + // | memory | + // | space | highest addr of block + // -------------- + new_mem->next = new_mem->prev = NULL; + uint8_t *const restrict final_mem = ( uint8_t* )new_mem + sizeof *new_mem; + return memset(final_mem, 0, new_mem->size - sizeof *new_mem); + } +} + +void *MemPoolRealloc(MemPool *const restrict mempool, void *const ptr, const size_t size) +{ + if (size > mempool->arena.size) return NULL; + // NULL ptr should make this work like regular Allocation. + else if (ptr == NULL) return MemPoolAlloc(mempool, size); + else if ((uintptr_t)ptr - sizeof(MemNode) < mempool->arena.mem) return NULL; + else + { + MemNode *const node = ( MemNode* )(( uint8_t* )ptr - sizeof *node); + const size_t NODE_SIZE = sizeof *node; + uint8_t *const resized_block = MemPoolAlloc(mempool, size); + if (resized_block == NULL) return NULL; + else + { + MemNode *const resized = ( MemNode* )(resized_block - sizeof *resized); + memmove(resized_block, ptr, (node->size > resized->size)? (resized->size - NODE_SIZE) : (node->size - NODE_SIZE)); + MemPoolFree(mempool, ptr); + return resized_block; + } + } +} + +void MemPoolFree(MemPool *const restrict mempool, void *const ptr) +{ + const uintptr_t p = ( uintptr_t )ptr; + if ((ptr == NULL) || (p - sizeof(MemNode) < mempool->arena.mem)) return; + else + { + // Behind the actual pointer data is the allocation info. + const uintptr_t block = p - sizeof(MemNode); + MemNode *const mem_node = ( MemNode* )block; + const size_t BUCKET_SLOT = (mem_node->size >> MEMPOOL_BUCKET_BITS) - 1; + + // Make sure the pointer data is valid. + if ((block < mempool->arena.offs) || + ((block - mempool->arena.mem) > mempool->arena.size) || + (mem_node->size == 0) || + (mem_node->size > mempool->arena.size)) return; + // If the mem_node is right at the arena offs, then merge it back to the arena. + else if (block == mempool->arena.offs) + { + mempool->arena.offs += mem_node->size; + } + else + { + // try to place it into bucket or large freelist. + struct AllocList *const l = (BUCKET_SLOT < MEMPOOL_BUCKET_SIZE) ? &mempool->buckets[BUCKET_SLOT] : &mempool->large; + __InsertMemNode(mempool, l, mem_node, (BUCKET_SLOT < MEMPOOL_BUCKET_SIZE)); + } + } +} + +void MemPoolCleanUp(MemPool *const restrict mempool, void **const ptrref) +{ + if ((ptrref == NULL) || (*ptrref == NULL)) return; + else + { + MemPoolFree(mempool, *ptrref); + *ptrref = NULL; + } +} + +size_t GetMemPoolFreeMemory(const MemPool mempool) +{ + size_t total_remaining = mempool.arena.offs - mempool.arena.mem; + + for (MemNode *n=mempool.large.head; n != NULL; n = n->next) total_remaining += n->size; + + for (size_t i=0; inext) total_remaining += n->size; + + return total_remaining; +} + +void MemPoolReset(MemPool *const mempool) +{ + mempool->large.head = mempool->large.tail = NULL; + mempool->large.len = 0; + for (size_t i = 0; i < MEMPOOL_BUCKET_SIZE; i++) + { + mempool->buckets[i].head = mempool->buckets[i].tail = NULL; + mempool->buckets[i].len = 0; + } + mempool->arena.offs = mempool->arena.mem + mempool->arena.size; +} + +//---------------------------------------------------------------------------------- +// Module Functions Definition - Object Pool +//---------------------------------------------------------------------------------- + +ObjPool CreateObjPool(const size_t objsize, const size_t len) +{ + ObjPool objpool = { 0 }; + if ((len == 0) || (objsize == 0)) return objpool; + else + { + const size_t aligned_size = __AlignSize(objsize, sizeof(size_t)); + uint8_t *const restrict buf = calloc(len, aligned_size); + if (buf == NULL) return objpool; + objpool.objSize = aligned_size; + objpool.memSize = objpool.freeBlocks = len; + objpool.mem = ( uintptr_t )buf; + + for (size_t i=0; imem == 0) return; + else + { + void *const restrict ptr = ( void* )objpool->mem; + free(ptr); + *objpool = (ObjPool){0}; + } +} + +void *ObjPoolAlloc(ObjPool *const objpool) +{ + if (objpool->freeBlocks > 0) + { + // For first allocation, head points to the very first index. + // Head = &pool[0]; + // ret = Head == ret = &pool[0]; + size_t *const restrict block = ( size_t* )objpool->offs; + objpool->freeBlocks--; + + // after allocating, we set head to the address of the index that *Head holds. + // Head = &pool[*Head * pool.objsize]; + objpool->offs = (objpool->freeBlocks != 0)? objpool->mem + (*block*objpool->objSize) : 0; + return memset(block, 0, objpool->objSize); + } + else return NULL; +} + +void ObjPoolFree(ObjPool *const restrict objpool, void *const ptr) +{ + uintptr_t block = (uintptr_t)ptr; + if ((ptr == NULL) || (block < objpool->mem) || (block > objpool->mem + objpool->memSize*objpool->objSize)) return; + else + { + // When we free our pointer, we recycle the pointer space to store the previous index and then we push it as our new head. + // *p = index of Head in relation to the buffer; + // Head = p; + size_t *const restrict index = ( size_t* )block; + *index = (objpool->offs != 0)? (objpool->offs - objpool->mem)/objpool->objSize : objpool->memSize; + objpool->offs = block; + objpool->freeBlocks++; + } +} + +void ObjPoolCleanUp(ObjPool *const restrict objpool, void **const restrict ptrref) +{ + if (ptrref == NULL) return; + else + { + ObjPoolFree(objpool, *ptrref); + *ptrref = NULL; + } +} + + +//---------------------------------------------------------------------------------- +// Module Functions Definition - Double-Ended Stack +//---------------------------------------------------------------------------------- +BiStack CreateBiStack(const size_t len) +{ + BiStack destack = { 0 }; + if (len == 0) return destack; + + uint8_t *const buf = malloc(len*sizeof *buf); + if (buf==NULL) return destack; + destack.size = len; + destack.mem = ( uintptr_t )buf; + destack.front = destack.mem; + destack.back = destack.mem + len; + return destack; +} + +BiStack CreateBiStackFromBuffer(void *const buf, const size_t len) +{ + BiStack destack = { 0 }; + if (len == 0 || buf == NULL) return destack; + else + { + destack.size = len; + destack.mem = destack.front = ( uintptr_t )buf; + destack.back = destack.mem + len; + return destack; + } +} + +void DestroyBiStack(BiStack *const restrict destack) +{ + if (destack->mem == 0) return; + else + { + uint8_t *const restrict buf = ( uint8_t* )destack->mem; + free(buf); + *destack = (BiStack){0}; + } +} + +void *BiStackAllocFront(BiStack *const restrict destack, const size_t len) +{ + if (destack->mem == 0) return NULL; + else + { + const size_t ALIGNED_LEN = __AlignSize(len, sizeof(uintptr_t)); + // front end arena is too high! + if (destack->front + ALIGNED_LEN >= destack->back) return NULL; + else + { + uint8_t *const restrict ptr = ( uint8_t* )destack->front; + destack->front += ALIGNED_LEN; + return ptr; + } + } +} + +void *BiStackAllocBack(BiStack *const restrict destack, const size_t len) +{ + if (destack->mem == 0) return NULL; + else + { + const size_t ALIGNED_LEN = __AlignSize(len, sizeof(uintptr_t)); + // back end arena is too low + if (destack->back - ALIGNED_LEN <= destack->front) return NULL; + else + { + destack->back -= ALIGNED_LEN; + uint8_t *const restrict ptr = ( uint8_t* )destack->back; + return ptr; + } + } +} + +void BiStackResetFront(BiStack *const destack) +{ + if (destack->mem == 0) return; + else destack->front = destack->mem; +} + +void BiStackResetBack(BiStack *const destack) +{ + if (destack->mem == 0) return; + else destack->back = destack->mem + destack->size; +} + +void BiStackResetAll(BiStack *const destack) +{ + BiStackResetBack(destack); + BiStackResetFront(destack); +} + +inline intptr_t BiStackMargins(const BiStack destack) +{ + return destack.back - destack.front; +} + +#endif // RMEM_IMPLEMENTATION + +/******* + * Changelog + * v1.0: First Creation. + * v1.1: bug patches for the mempool and addition of object pool. + * v1.2: addition of bidirectional arena. + * v1.3: + * optimizations of allocators. + * renamed 'Stack' to 'Arena'. + * replaced certain define constants with an anonymous enum. + * refactored MemPool to no longer require active or deferred defragging. + ********/ diff --git a/include/utils.h b/include/utils.h new file mode 100644 index 0000000..c9b3318 --- /dev/null +++ b/include/utils.h @@ -0,0 +1,81 @@ +/********************************************************************************************** +* +* raylib.utils - Some common utility functions +* +* +* LICENSE: zlib/libpng +* +* Copyright (c) 2014-2021 Ramon Santamaria (@raysan5) +* +* This software is provided "as-is", without any express or implied warranty. In no event +* will the authors be held liable for any damages arising from the use of this software. +* +* Permission is granted to anyone to use this software for any purpose, including commercial +* applications, and to alter it and redistribute it freely, subject to the following restrictions: +* +* 1. The origin of this software must not be misrepresented; you must not claim that you +* wrote the original software. If you use this software in a product, an acknowledgment +* in the product documentation would be appreciated but is not required. +* +* 2. Altered source versions must be plainly marked as such, and must not be misrepresented +* as being the original software. +* +* 3. This notice may not be removed or altered from any source distribution. +* +**********************************************************************************************/ + +#ifndef UTILS_H +#define UTILS_H + +#if defined(PLATFORM_ANDROID) + #include // Required for: FILE + #include // Required for: AAssetManager +#endif + +#if defined(SUPPORT_TRACELOG) + #define TRACELOG(level, ...) TraceLog(level, __VA_ARGS__) + + #if defined(SUPPORT_TRACELOG_DEBUG) + #define TRACELOGD(...) TraceLog(LOG_DEBUG, __VA_ARGS__) + #else + #define TRACELOGD(...) (void)0 + #endif +#else + #define TRACELOG(level, ...) (void)0 + #define TRACELOGD(...) (void)0 +#endif + +//---------------------------------------------------------------------------------- +// Some basic Defines +//---------------------------------------------------------------------------------- +#if defined(PLATFORM_ANDROID) + #define fopen(name, mode) android_fopen(name, mode) +#endif + +//---------------------------------------------------------------------------------- +// Types and Structures Definition +//---------------------------------------------------------------------------------- +//... + +//---------------------------------------------------------------------------------- +// Global Variables Definition +//---------------------------------------------------------------------------------- +// Nop... + +//---------------------------------------------------------------------------------- +// Module Functions Declaration +//---------------------------------------------------------------------------------- +#ifdef __cplusplus +extern "C" { // Prevents name mangling of functions +#endif + +#if defined(PLATFORM_ANDROID) +void InitAssetManager(AAssetManager *manager, const char *dataPath); // Initialize asset manager from android app +FILE *android_fopen(const char *fileName, const char *mode); // Replacement for fopen() -> Read-only! +#endif + +#ifdef __cplusplus +} +#endif + +#endif // UTILS_H diff --git a/lib/libraylib.a b/lib/libraylib.a new file mode 100644 index 0000000..3775f04 Binary files /dev/null and b/lib/libraylib.a differ diff --git a/raylib_build_files/Makefile b/raylib_build_files/Makefile new file mode 100644 index 0000000..ea4a146 --- /dev/null +++ b/raylib_build_files/Makefile @@ -0,0 +1,299 @@ +#****************************************************************************** +# +# raylib makefile +# +# Platforms supported: +# PLATFORM_DESKTOP: Windows (Win32, Win64) +# PLATFORM_DESKTOP: Linux (i386, x64) +# PLATFORM_DESKTOP: OSX/macOS (arm64, x86_64) +# PLATFORM_DESKTOP: FreeBSD, OpenBSD, NetBSD, DragonFly +# PLATFORM_ANDROID: Android (arm, i686, arm64, x86_64) +# PLATFORM_RPI: Raspberry Pi (Raspbian) +# PLATFORM_DRM: Linux native mode, including Raspberry Pi 4 with V3D fkms driver +# PLATFORM_WEB: HTML5 (Chrome, Firefox) +# +# Many thanks to Milan Nikolic (@gen2brain) for implementing Android platform pipeline. +# Many thanks to Emanuele Petriglia for his contribution on GNU/Linux pipeline. +# +# Copyright (c) 2014-2019 Ramon Santamaria (@raysan5) +# +# This software is provided "as-is", without any express or implied warranty. +# In no event will the authors be held liable for any damages arising from +# the use of this software. +# +# Permission is granted to anyone to use this software for any purpose, +# including commercial applications, and to alter it and redistribute it +# freely, subject to the following restrictions: +# +# 1. The origin of this software must not be misrepresented; you must not +# claim that you wrote the original software. If you use this software in a +# product, an acknowledgment in the product documentation would be +# appreciated but is not required. +# +# 2. Altered source versions must be plainly marked as such, and must not +# be misrepresented as being the original software. +# +# 3. This notice may not be removed or altered from any source distribution. +# +#****************************************************************************** + +# Please read the wiki to know how to compile raylib, because there are different methods. +# https://github.com/raysan5/raylib/wiki + +.PHONY: all clean + +# Define required raylib variables +RAYLIB_VERSION = 4.0.0 +RAYLIB_API_VERSION = 400 + +# Define raylib source code path +RAYLIB_SRC_PATH ?= ../src + +# Define output directory for compiled library, defaults to src directory +# NOTE: If externally provided, make sure directory exists +RAYLIB_RELEASE_PATH ?= $(RAYLIB_SRC_PATH) + +# Library type used for raylib: STATIC (.a) or SHARED (.so/.dll) +RAYLIB_LIBTYPE ?= STATIC + +# Build mode for library: DEBUG or RELEASE +RAYLIB_BUILD_MODE ?= RELEASE + +# Build output name for the library +RAYLIB_LIB_NAME ?= raylib + +# Define resource file for DLL properties +RAYLIB_RES_FILE ?= ./raylib.dll.rc.data + +# Define raylib platform +# Options: PLATFORM_DESKTOP, PLATFORM_RPI, PLATFORM_ANDROID, PLATFORM_WEB +PLATFORM ?= PLATFORM_DESKTOP + +# Include raylib modules on compilation +# NOTE: Some programs like tools could not require those modules +RAYLIB_MODULE_AUDIO ?= TRUE +RAYLIB_MODULE_MODELS ?= TRUE +RAYLIB_MODULE_RAYGUI ?= FALSE +RAYLIB_MODULE_PHYSAC ?= FALSE + +RAYLIB_MODULE_RAYGUI_PATH ?= $(RAYLIB_SRC_PATH)/extras +RAYLIB_MODULE_PHYSAC_PATH ?= $(RAYLIB_SRC_PATH)/extras + +# Use external GLFW library instead of rglfw module +USE_EXTERNAL_GLFW ?= FALSE + +# Use Wayland display server protocol on Linux desktop +# by default it uses X11 windowing system +USE_WAYLAND_DISPLAY ?= FALSE + +# Use cross-compiler for PLATFORM_RPI +ifeq ($(PLATFORM),PLATFORM_RPI) + USE_RPI_CROSS_COMPILER ?= FALSE + ifeq ($(USE_RPI_CROSS_COMPILER),TRUE) + RPI_TOOLCHAIN ?= C:/SysGCC/Raspberry + RPI_TOOLCHAIN_SYSROOT ?= $(RPI_TOOLCHAIN)/arm-linux-gnueabihf/sysroot + endif +endif + +# Determine if the file has root access (only for installing raylib) +# "whoami" prints the name of the user that calls him (so, if it is the root +# user, "whoami" prints "root"). +ROOT = $(shell whoami) + +# By default we suppose we are working on Windows +HOST_PLATFORM_OS ?= WINDOWS + +# Determine PLATFORM_OS in case PLATFORM_DESKTOP selected +ifeq ($(PLATFORM),PLATFORM_DESKTOP) + # No uname.exe on MinGW!, but OS=Windows_NT on Windows! + # ifeq ($(UNAME),Msys) -> Windows + ifeq ($(OS),Windows_NT) + PLATFORM_OS = WINDOWS + endif +endif + +# Define raylib graphics api depending on selected platform +ifeq ($(PLATFORM),PLATFORM_DESKTOP) + # By default use OpenGL 3.3 on desktop platforms + GRAPHICS ?= GRAPHICS_API_OPENGL_33 + #GRAPHICS = GRAPHICS_API_OPENGL_11 # Uncomment to use OpenGL 1.1 + #GRAPHICS = GRAPHICS_API_OPENGL_21 # Uncomment to use OpenGL 2.1 +endif + +# Define default C compiler and archiver to pack library +CC = tcc +AR = ar + +# Define compiler flags: +# -O1 defines optimization level +# -g include debug information on compilation +# -s strip unnecessary data from build +# -Wall turns on most, but not all, compiler warnings +# -std=c99 defines C language mode (standard C from 1999 revision) +# -std=gnu99 defines C language mode (GNU C from 1999 revision) +# -Wno-missing-braces ignore invalid warning (GCC bug 53119) +# -D_DEFAULT_SOURCE use with -std=c99 on Linux and PLATFORM_WEB, required for timespec +# -Werror=pointer-arith catch unportable code that does direct arithmetic on void pointers +# -fno-strict-aliasing jar_xm.h does shady stuff (breaks strict aliasing) +CFLAGS += -Wall -Wno-missing-braces -Werror=pointer-arith -fno-strict-aliasing + +CFLAGS += -std=c99 + +ifeq ($(RAYLIB_BUILD_MODE),DEBUG) + CFLAGS += -g +endif + +ifeq ($(RAYLIB_BUILD_MODE),RELEASE) + ifeq ($(PLATFORM),PLATFORM_DESKTOP) + CFLAGS += -s -O1 + endif +endif + +# Additional flags for compiler (if desired) +# -Wextra enables some extra warning flags that are not enabled by -Wall +# -Wmissing-prototypes warn if a global function is defined without a previous prototype declaration +# -Wstrict-prototypes warn if a function is declared or defined without specifying the argument types +# -Werror=implicit-function-declaration catch function calls without prior declaration +ifeq ($(PLATFORM),PLATFORM_DESKTOP) + CFLAGS += -Werror=implicit-function-declaration +endif + +# Define include paths for required headers +# NOTE: Several external required libraries (stb and others) +INCLUDE_PATHS = -I. -Iexternal/glfw/include -Iexternal/glfw/deps/mingw + +ifeq ($(PLATFORM),PLATFORM_DESKTOP) + ifeq ($(USE_EXTERNAL_GLFW),TRUE) + # Check the version name. If GLFW3 was built manually, it may have produced + # a static library known as libglfw3.a. In that case, the name should be -lglfw3 + LDFLAGS += -lglfw + endif +endif + +# Define all object files required with a wildcard +# The wildcard takes all files that finish with ".c", +# and replaces extentions with ".o", that are the object files +# NOTE: Some objects depend on the PLATFORM to be added or not! +# OBJS = $(patsubst %.c, %.o, $(wildcard *.c)) + +# Define object required on compilation +OBJS = rcore.o \ + rshapes.o \ + rtextures.o \ + rtext.o \ + utils.o + +ifeq ($(PLATFORM),PLATFORM_DESKTOP) + ifeq ($(USE_EXTERNAL_GLFW),FALSE) + OBJS += rglfw.o + endif +endif +ifeq ($(RAYLIB_MODULE_MODELS),TRUE) + OBJS += rmodels.o +endif +ifeq ($(RAYLIB_MODULE_AUDIO),TRUE) + OBJS += raudio.o +endif +ifeq ($(RAYLIB_MODULE_RAYGUI),TRUE) + OBJS += raygui.o +endif +ifeq ($(RAYLIB_MODULE_PHYSAC),TRUE) + OBJS += physac.o +endif + +# Default target entry +all: raylib + +# Compile raylib library +# NOTE: Release directory is created if not exist +raylib: $(OBJS) +ifeq ($(RAYLIB_LIBTYPE),STATIC) + # Compile raylib static library version $(RAYLIB_VERSION) + # WARNING: You should type "make clean" before doing this target. + $(AR) rcs $(RAYLIB_RELEASE_PATH)/lib$(RAYLIB_LIB_NAME).a $(OBJS) + @echo "raylib static library generated (lib$(RAYLIB_LIB_NAME).a) in $(RAYLIB_RELEASE_PATH)!" +endif + +# Compile all modules with their prerequisites + +# Compile core module +rcore.o : rcore.c raylib.h rlgl.h utils.h raymath.h rcamera.h rgestures.h + $(CC) -c $< $(CFLAGS) $(INCLUDE_PATHS) -D$(PLATFORM) -D$(GRAPHICS) + +# Compile rglfw module +rglfw.o : rglfw.c + $(CC) $(GLFW_OSX) -c $< $(CFLAGS) $(INCLUDE_PATHS) -D$(PLATFORM) -D$(GRAPHICS) + +# Compile shapes module +rshapes.o : rshapes.c raylib.h rlgl.h + $(CC) -c $< $(CFLAGS) $(INCLUDE_PATHS) -D$(PLATFORM) -D$(GRAPHICS) + +# Compile textures module +rtextures.o : rtextures.c raylib.h rlgl.h utils.h + $(CC) -c $< $(CFLAGS) $(INCLUDE_PATHS) -D$(PLATFORM) -D$(GRAPHICS) + +# Compile text module +rtext.o : rtext.c raylib.h utils.h + $(CC) -c $< $(CFLAGS) $(INCLUDE_PATHS) -D$(PLATFORM) -D$(GRAPHICS) + +# Compile utils module +utils.o : utils.c utils.h + $(CC) -c $< $(CFLAGS) $(INCLUDE_PATHS) -D$(PLATFORM) + +# Compile models module +rmodels.o : rmodels.c raylib.h rlgl.h raymath.h + $(CC) -c $< $(CFLAGS) $(INCLUDE_PATHS) -D$(PLATFORM) -D$(GRAPHICS) + +# Compile audio module +raudio.o : raudio.c raylib.h + $(CC) -c $< $(CFLAGS) $(INCLUDE_PATHS) -D$(PLATFORM) + +# Compile raygui module +# NOTE: raygui header should be distributed with raylib.h +raygui.o : raygui.c + $(CC) -c $< $(CFLAGS) $(INCLUDE_PATHS) -D$(PLATFORM) -DRAYGUI_IMPLEMENTATION +raygui.c: + echo #define RAYGUI_IMPLEMENTATION > raygui.c + echo #include "$(RAYLIB_MODULE_RAYGUI_PATH)/raygui.h" >> raygui.c + +# Compile physac module +# NOTE: physac header should be distributed with raylib.h +physac.o : physac.c + $(CC) -c $< $(CFLAGS) $(INCLUDE_PATHS) -D$(PLATFORM) -DPHYSAC_IMPLEMENTATION +physac.c: + @echo #define PHYSAC_IMPLEMENTATION > physac.c + @echo #include "$(RAYLIB_MODULE_PHYSAC_PATH)/physac.h" >> physac.c + +# Compile android_native_app_glue module +android_native_app_glue.o : $(NATIVE_APP_GLUE)/android_native_app_glue.c + $(CC) -c $< $(CFLAGS) $(INCLUDE_PATHS) + + +# Install generated and needed files to desired directories. +# On GNU/Linux and BSDs, there are some standard directories that contain extra +# libraries and header files. These directories (often /usr/local/lib and +# /usr/local/include) are for libraries that are installed manually +# (without a package manager). We'll use /usr/local/lib/raysan5 and /usr/local/include/raysan5 +# for our -L and -I specification to simplify management of the raylib source package. +# Customize these locations if you like but don't forget to pass them to make +# for compilation and enable runtime linking with -rpath, LD_LIBRARY_PATH, or ldconfig. +# HINT: Add -L$(RAYLIB_INSTALL_PATH) -I$(RAYLIB_H_INSTALL_PATH) to your own makefiles. +# See below and ../examples/Makefile for more information. +# TODO: Add other platforms. Remove sudo requirement, i.e. add USER mode. + +# RAYLIB_INSTALL_PATH should be the desired full path to libraylib. No relative paths. +DESTDIR ?= /usr/local +RAYLIB_INSTALL_PATH ?= $(DESTDIR)/lib +# RAYLIB_H_INSTALL_PATH locates the installed raylib header and associated source files. +RAYLIB_H_INSTALL_PATH ?= $(DESTDIR)/include + +# Clean everything +clean: +ifeq ($(PLATFORM_OS),WINDOWS) + del *.o /s + cd $(RAYLIB_RELEASE_PATH) + del lib$(RAYLIB_LIB_NAME).a /s + del lib$(RAYLIB_LIB_NAME)dll.a /s + del $(RAYLIB_LIB_NAME).dll /s + @echo "removed all generated files!" +endif diff --git a/raylib_build_files/build.ps1 b/raylib_build_files/build.ps1 new file mode 100644 index 0000000..bbc0b9f --- /dev/null +++ b/raylib_build_files/build.ps1 @@ -0,0 +1 @@ +mingw32-make clean RAYLIB_MODULE_RAYGUI=TRUE RAYLIB_MODULE_PHYSAC=true && mingw32-make RAYLIB_MODULE_RAYGUI=TRUE RAYLIB_MODULE_PHYSAC=true \ No newline at end of file diff --git a/src/main.c b/src/main.c new file mode 100644 index 0000000..5e54a60 --- /dev/null +++ b/src/main.c @@ -0,0 +1,171 @@ +/******************************************************************************************* + * + * raylib [text] example - Input Box + * + * This example has been created using raylib 3.5 (www.raylib.com) + * raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details) + * + * Copyright (c) 2017 Ramon Santamaria (@raysan5) + * + ********************************************************************************************/ + +#include "raylib.h" + +#define MAX_INPUT_CHARS 21 +#define DEBUG 1 + +int main(void) +{ + // Initialization + //-------------------------------------------------------------------------------------- + const int screenWidth = 800; + const int screenHeight = 450; + + const float holdBackspace = 0.5f; + const float repeatBackspace = 0.05f; + + SetConfigFlags(FLAG_VSYNC_HINT); + InitWindow(screenWidth, screenHeight, "raylib [text] example - input box"); + + char name[MAX_INPUT_CHARS + 1] = "\0"; // NOTE: One extra space required for null terminator char '\0' + int letterCount = 0; + + Rectangle textBox = {screenWidth / 2.0f - ((MAX_INPUT_CHARS + 1) * 10.0f), 180, 25.0f * MAX_INPUT_CHARS, 50}; + bool mouseOnText = false; + + int framesCounter = 0; + float backspaceTimer = holdBackspace; + +#if DEBUG + SetTraceLogLevel(LOG_ALL); +#endif + + // SetTargetFPS(60); // Set our desired framerate. + //-------------------------------------------------------------------------------------- + + // Main game loop + while (!WindowShouldClose()) // Detect window close button or ESC key + { + // Update + //---------------------------------------------------------------------------------- + if (CheckCollisionPointRec(GetMousePosition(), textBox)) + mouseOnText = true; + else + mouseOnText = false; + + if (mouseOnText) + { + // Set the window's cursor to the I-Beam + SetMouseCursor(MOUSE_CURSOR_IBEAM); + + // Get char pressed (unicode character) on the queue + int key = GetCharPressed(); + + // Check if more characters have been pressed on the same frame + while (key > 0) + { + // NOTE: Only allow keys in range [32..125] + if ((key >= 32) && (key <= 125) && (letterCount < MAX_INPUT_CHARS)) + { + name[letterCount] = (char)key; + name[letterCount + 1] = '\0'; // Add null terminator at the end of the string. + letterCount++; + } + + key = GetCharPressed(); // Check next character in the queue + } + + bool backspace = false; + + if (IsKeyPressed(KEY_BACKSPACE)) + { + backspace = true; + backspaceTimer = holdBackspace; + } + else if (IsKeyDown(KEY_BACKSPACE)) + { + backspaceTimer -= GetFrameTime(); + if (backspaceTimer <= 0.0f) + { + backspace = true; + backspaceTimer = repeatBackspace; + } + TraceLog(LOG_INFO, TextFormat("backspaceTimer: %f", backspaceTimer)); + } + else if (IsKeyReleased(KEY_BACKSPACE)) + { + backspaceTimer = holdBackspace; + } + + if (backspace) + { + letterCount--; + if (letterCount < 0) + letterCount = 0; + name[letterCount] = '\0'; + } + } + else + SetMouseCursor(MOUSE_CURSOR_DEFAULT); + + if (mouseOnText) + framesCounter++; + else + framesCounter = 0; + //---------------------------------------------------------------------------------- + + // Draw + //---------------------------------------------------------------------------------- + BeginDrawing(); + + ClearBackground(RAYWHITE); + + DrawText("PLACE MOUSE OVER INPUT BOX!", 240, 140, 20, GRAY); + + DrawRectangleRec(textBox, LIGHTGRAY); + if (mouseOnText) + DrawRectangleLines((int)textBox.x, (int)textBox.y, (int)textBox.width, (int)textBox.height, RED); + else + DrawRectangleLines((int)textBox.x, (int)textBox.y, (int)textBox.width, (int)textBox.height, DARKGRAY); + + DrawText(name, (int)textBox.x + 5, (int)textBox.y + 8, 40, MAROON); + + const char charCounter[sizeof("INPUT CHARS: /") + 6] = TextFormat("INPUT CHARS: %i/%i", letterCount, MAX_INPUT_CHARS); + DrawText(charCounter, (screenWidth - MeasureText(charCounter, 20)) / 2, 250, 20, DARKGRAY); + + if (mouseOnText) + { + if (letterCount < MAX_INPUT_CHARS) + { + // Draw blinking underscore char + if (((framesCounter / 20) % 2) == 0) + DrawText("_", (int)textBox.x + 8 + MeasureText(name, 40), (int)textBox.y + 12, 40, MAROON); + } + else + DrawText("Press BACKSPACE to delete chars...", 230, 300, 20, GRAY); + } + + EndDrawing(); + //---------------------------------------------------------------------------------- + } + + // De-Initialization + //-------------------------------------------------------------------------------------- + CloseWindow(); // Close window and OpenGL context + //-------------------------------------------------------------------------------------- + + return 0; +} + +// Check if any key is pressed +// NOTE: We limit keys check to keys between 32 (KEY_SPACE) and 126 +bool IsAnyKeyPressed() +{ + bool keyPressed = false; + int key = GetKeyPressed(); + + if ((key >= 32) && (key <= 126)) + keyPressed = true; + + return keyPressed; +} \ No newline at end of file