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Tobias Berger 2021-11-22 09:36:33 +01:00
parent fc1806e1b2
commit 19608b3283
13 changed files with 2 additions and 17126 deletions
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2
.vscode/tasks.json vendored
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@ -14,6 +14,7 @@
{ "value": "-v", "quoting": "strong" }, { "value": "-v", "quoting": "strong" },
{ "value": "-b", "quoting": "strong" }, { "value": "-b", "quoting": "strong" },
{ "value": "-Iinclude", "quoting": "strong" }, { "value": "-Iinclude", "quoting": "strong" },
{ "value": "-Iraylib/src", "quoting": "strong" },
{ "value": "-Llib", "quoting": "strong" }, { "value": "-Llib", "quoting": "strong" },
{ "value": "-stdc99", "quoting": "strong" }, { "value": "-stdc99", "quoting": "strong" },
{ "value": "-Wall", "quoting": "strong" }, { "value": "-Wall", "quoting": "strong" },
@ -42,6 +43,7 @@
{ "value": "-bench", "quoting": "strong" }, { "value": "-bench", "quoting": "strong" },
{ "value": "-v", "quoting": "strong" }, { "value": "-v", "quoting": "strong" },
{ "value": "-Iinclude", "quoting": "strong" }, { "value": "-Iinclude", "quoting": "strong" },
{ "value": "-Iraylib/src", "quoting": "strong" },
{ "value": "-Llib", "quoting": "strong" }, { "value": "-Llib", "quoting": "strong" },
{ "value": "-stdc99", "quoting": "strong" }, { "value": "-stdc99", "quoting": "strong" },
{ "value": "-Wall", "quoting": "strong" }, { "value": "-Wall", "quoting": "strong" },

230
include/config.h
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@ -1,230 +0,0 @@
/**********************************************************************************************
*
* 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

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include/easings.h
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/*******************************************************************************************
*
* 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 <math.h> // 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

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include/physac.h
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198
include/raudio.h
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/**********************************************************************************************
*
* 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

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/*******************************************************************************************
*
* 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 <math.h> // 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

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include/rgestures.h
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@ -1,566 +0,0 @@
/**********************************************************************************************
*
* 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 <stdbool.h>
#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 <sys/time.h> // Required for: timespec
#include <time.h> // Required for: clock_gettime()
#include <math.h> // Required for: sqrtf(), atan2f()
#endif
#if defined(__APPLE__) // macOS also defines __MACH__
#include <mach/clock.h> // Required for: clock_get_time()
#include <mach/mach.h> // 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(&currentTime);
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

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include/rlgl.h
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include/rmem.h
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/**********************************************************************************************
*
* 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 <inttypes.h>
#include <stdbool.h>
//----------------------------------------------------------------------------------
// 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 <stdio.h> // Required for:
#include <stdlib.h> // Required for:
#include <string.h> // 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; i<MEMPOOL_BUCKET_SIZE; i++) for (MemNode *n = mempool.buckets[i].head; n != NULL; n = n->next) 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; i<objpool.freeBlocks; i++)
{
size_t *const restrict index = ( size_t* )(objpool.mem + (i*aligned_size));
*index = i + 1;
}
objpool.offs = objpool.mem;
return objpool;
}
}
ObjPool CreateObjPoolFromBuffer(void *const restrict buf, const size_t objsize, const size_t len)
{
ObjPool objpool = { 0 };
// If the object size isn't large enough to align to a size_t, then we can't use it.
const size_t aligned_size = __AlignSize(objsize, sizeof(size_t));
if ((buf == NULL) || (len == 0) || (objsize < sizeof(size_t)) || (objsize*len != aligned_size*len)) return objpool;
else
{
objpool.objSize = aligned_size;
objpool.memSize = objpool.freeBlocks = len;
objpool.mem = (uintptr_t)buf;
for (size_t i=0; i<objpool.freeBlocks; i++)
{
size_t *const restrict index = ( size_t* )(objpool.mem + (i*aligned_size));
*index = i + 1;
}
objpool.offs = objpool.mem;
return objpool;
}
}
void DestroyObjPool(ObjPool *const restrict objpool)
{
if (objpool->mem == 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.
********/

81
include/utils.h
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@ -1,81 +0,0 @@
/**********************************************************************************************
*
* 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 <stdio.h> // Required for: FILE
#include <android/asset_manager.h> // 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