raylib-test/include/fileToCharArray.h

#include "raylib.h"

#include <string.h>

static char const DECLARATION_BEGIN[] = "static const unsigned char ";
static char const DECLARATION_END[] = "[] = {\n";
static char const FILE_END[] = "};";
static char const LINE[] = "    0x00\n";

static int const DECLARATION_BEGIN_SIZE = sizeof(DECLARATION_BEGIN) - 1;
static int const DECLARATION_END_SIZE = sizeof(DECLARATION_END) - 1;
static int const FILE_END_SIZE = sizeof(FILE_END) - 1;
static int const LINE_SIZE = sizeof(LINE) - 1;

static int const ADDITIONAL_SIZE = DECLARATION_BEGIN_SIZE + DECLARATION_END_SIZE + FILE_END_SIZE;

void fileToBytes(char const *const inputFileName, char const *const outputFileName, char const *const arrayName)
{
  unsigned int fileSize = 0;

  unsigned char *const fileData = LoadFileData(inputFileName, &fileSize);
  char *const content = (char *const)MemAlloc(sizeof(char) * fileSize * 10);

  int cursor = 0;

  for (unsigned int i = 0; i < fileSize; i++)
  {
    TextAppend(content, TextFormat("  0x%02x,\n", fileData[i]), &cursor);
  }

  cursor = 0;
  char *const final = (char *const)MemAlloc((ADDITIONAL_SIZE + strlen(arrayName) + (LINE_SIZE * fileSize)) * sizeof(char));

  TextAppend(final, DECLARATION_BEGIN, &cursor);
  TextAppend(final, arrayName, &cursor);
  TextAppend(final, DECLARATION_END, &cursor);
  TextAppend(final, content, &cursor);
  TextAppend(final, FILE_END, &cursor);

  MemFree(content);

  SaveFileText(outputFileName, final);

  MemFree(final);
}

void bytesToFile(unsigned char const *const input, unsigned int const inputSize, char const *const outputFileName, char const *const arrayName)
{
  char *const content = (char *const)MemAlloc(sizeof(char) * inputSize * sizeof("  0x00,\n"));

  int cursor = 0;

  for (unsigned int i = 0; i < inputSize; i++)
  {
    TextAppend(content, TextFormat("  0x%02x,\n", input[i]), &cursor);
  }

  cursor = 0;
  char *const final = (char *const)MemAlloc((ADDITIONAL_SIZE + strlen(arrayName) + (LINE_SIZE * inputSize)) * sizeof(char));

  TextAppend(final, DECLARATION_BEGIN, &cursor);
  TextAppend(final, arrayName, &cursor);
  TextAppend(final, DECLARATION_END, &cursor);
  TextAppend(final, content, &cursor);
  TextAppend(final, FILE_END, &cursor);

  MemFree(content);

  SaveFileText(outputFileName, final);

  MemFree(final);
}