source: orxonox.OLD/branches/std/src/subprojects/others/TTFtoIMG.cc @ 7218

#include <SDL/SDL.h>
#include <SDL/SDL_ttf.h>
#include <string>


TTF_Font* fontTTF = NULL;

int getMaxHeight()
{
  if (fontTTF != NULL)
    return TTF_FontHeight(fontTTF);
  else
    return 0;
}


void createAsciiImage(const std::string& fileName, unsigned int size)
{
  if (fontTTF == NULL)
    return;
  int height = getMaxHeight();

  //
  SDL_Color tmpColor = {0, 0, 0};
  // Surface definition.
  SDL_Rect tmpRect; // this represents a Rectangle for blitting.
  SDL_Surface* tmpSurf =  SDL_CreateRGBSurface(SDL_SWSURFACE,
                                               height*16, height*16,
                                               32,
#if SDL_BYTEORDER == SDL_LIL_ENDIAN /* OpenGL RGBA masks */
                                               0x000000FF,
                                               0x0000FF00,
                                               0x00FF0000,
                                               0xFF000000
#else
                                               0xFF000000,
                                               0x00FF0000,
                                               0x0000FF00,
                                               0x000000FF
#endif
                                              );
  tmpRect.x = 0; tmpRect.y = 0; tmpRect.w = tmpSurf->w; tmpRect.h = tmpSurf->h;
  SDL_SetClipRect(tmpSurf, &tmpRect);
  int maxLineHeight = 0;

  int posX, posY;
  // all the interessting Glyphs
  for (posY = 0; posY < 16; posY++)
  {
    for (posX = 0; posX < 16; posX++)
    {
      SDL_Surface* glyphSurf = NULL;
      if (fontTTF != NULL)
      {
        SDL_Color white = {255, 255, 255};
        glyphSurf = TTF_RenderGlyph_Blended(fontTTF, posX+16*posY, white);
      }
      if( glyphSurf != NULL )
      {
        tmpRect.x = height*posX;
        tmpRect.y = height*posY;
        SDL_SetAlpha(glyphSurf, 0, 0);

        SDL_BlitSurface(glyphSurf, NULL, tmpSurf, &tmpRect);
        SDL_FreeSurface(glyphSurf);
      }
    }
  }
  SDL_SaveBMP(tmpSurf, fileName.c_str());
  SDL_FreeSurface(tmpSurf);
}



int main (int argc, const char** argv)
{
  SDL_Init(0);
  TTF_Init();
  unsigned int renderSize = 32;

  fontTTF = TTF_OpenFont(argv[1], renderSize);

  createAsciiImage(argv[2], renderSize);

  //  delete fontTTF;
  TTF_Quit();
  SDL_Quit();
}