bool exportFontBin(const char * filename, MFont * font)
{
if(! font)
return false;
MEngine * engine = MEngine::getInstance();
MRenderingContext * render = engine->getRenderingContext();
// read image
MImage image;
render->bindTexture(font->getTextureId());
render->getTexImage(0, &image);
unsigned int width = image.getWidth();
unsigned int height = image.getHeight();
if(width == 0 && height == 0)
{
printf("Error : unable to create image font for %s\n", filename);
return false;
}
// create file
FILE * file = fopen(filename, "wb");
if(! file)
{
printf("Error : can't create file %s\n", filename);
return false;
}
// bin
fwrite(M_FONT_HEADER, sizeof(char), 8, file);
// version
int version = 1;
fwrite(&version, sizeof(int), 1, file);
// font size
unsigned int fontSize = font->getFontSize();
fwrite(&fontSize, sizeof(int), 1, file);
// write image
{
fwrite(&width, sizeof(int), 1, file);
fwrite(&height, sizeof(int), 1, file);
unsigned char color[4];
unsigned int x, y;
for(y=0; y<height; y++)
{
for(x=0; x<width; x++)
{
image.readPixel(x, y, color);
fwrite(&color[3], sizeof(char), 1, file);
}
}
}
// write characters infos
{
map <unsigned int, MCharacter> * characters = font->getCharacters();
// size
unsigned int size = font->getCharactersNumber();
fwrite(&size, sizeof(int), 1, file);
// characters
map <unsigned int, MCharacter>::iterator
mit (characters->begin()),
mend(characters->end());
for(;mit!=mend;++mit)
{
unsigned int charCode = mit->first;
MCharacter * character = &mit->second;
MVector2 pos = character->getPos();
MVector2 offset = character->getOffset();
MVector2 scale = character->getScale();
float xadvance = character->getXAdvance();
fwrite(&charCode, sizeof(int), 1, file);
fwrite(&pos, sizeof(float), 2, file);
fwrite(&offset, sizeof(float), 2, file);
fwrite(&scale, sizeof(float), 2, file);
fwrite(&xadvance, sizeof(float), 1, file);
}
}
fclose(file);
return true;
}
