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Added RGB and RGBA image support to BMFont loader

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This commit is contained in:
Uneven Prankster 2025-01-26 18:30:20 -03:00
parent f6f31a9f21
commit b4583ce18c
1 changed files with 28 additions and 20 deletions
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44
src/rtext.c
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@ -2227,26 +2227,34 @@ static Font LoadBMFont(const char *fileName)
{
imFonts[i] = LoadImage(TextFormat("%s/%s", GetDirectoryPath(fileName), imFileName[i]));
if (imFonts[i].format == PIXELFORMAT_UNCOMPRESSED_GRAYSCALE)
{
// Convert image to GRAYSCALE + ALPHA, using the mask as the alpha channel
Image imFontAlpha = {
.data = RL_CALLOC(imFonts[i].width*imFonts[i].height, 2),
.width = imFonts[i].width,
.height = imFonts[i].height,
.mipmaps = 1,
.format = PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA
};
PixelFormat format = imFonts[i].format;
if (format != PIXELFORMAT_UNCOMPRESSED_GRAYSCALE && format != PIXELFORMAT_UNCOMPRESSED_R8G8B8A8 && format != PIXELFORMAT_UNCOMPRESSED_R8G8B8)
continue;
for (int p = 0, pi = 0; p < (imFonts[i].width*imFonts[i].height*2); p += 2, pi++)
{
((unsigned char *)(imFontAlpha.data))[p] = 0xff;
((unsigned char *)(imFontAlpha.data))[p + 1] = ((unsigned char *)imFonts[i].data)[pi];
}
// Convert image to GRAYSCALE + ALPHA, using the mask as the alpha channel
Image imFontAlpha = {
.data = RL_CALLOC(imFonts[i].width*imFonts[i].height, 2),
.width = imFonts[i].width,
.height = imFonts[i].height,
.mipmaps = 1,
.format = PIXELFORMAT_UNCOMPRESSED_GRAY_ALPHA
};
UnloadImage(imFonts[i]);
imFonts[i] = imFontAlpha;
}
int stride = 1;
if (format == PIXELFORMAT_UNCOMPRESSED_R8G8B8){
stride = 3;
}else if (format == PIXELFORMAT_UNCOMPRESSED_R8G8B8A8){
stride = 4;
}
for (int p = 0, pi = 0; p < (imFonts[i].width*imFonts[i].height*2); p += 2, pi++)
{
((unsigned char *)(imFontAlpha.data))[p] = 0xff;
((unsigned char *)(imFontAlpha.data))[p + 1] = ((unsigned char *)imFonts[i].data)[pi * stride];
}
UnloadImage(imFonts[i]);
imFonts[i] = imFontAlpha;
}
Image fullFont = imFonts[0];