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Corrected bug with alpha mask on font 

Mask was wrongly applied to 8-bit font image, it generated dark borders
on the font. Grayscale image has to be considered as the alpha mask for
a completely white image to use it correctly.
This commit is contained in:
raysan5 2016-11-21 19:47:58 +01:00
parent 85c400c006
commit 481ce3d39d
1 changed files with 11 additions and 3 deletions
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14
src/text.c
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@ -875,10 +875,18 @@ static SpriteFont LoadBMFont(const char *fileName)
TraceLog(DEBUG, "[%s] Font texture loading path: %s", fileName, texPath);
Image imFont = LoadImage(texPath);
if (imFont.format == UNCOMPRESSED_GRAYSCALE)
{
Image imCopy = ImageCopy(imFont);
for (int i = 0; i < imCopy.width*imCopy.height; i++) ((unsigned char *)imCopy.data)[i] = 0xff; // WHITE pixel
if (imFont.format == UNCOMPRESSED_GRAYSCALE) ImageAlphaMask(&imFont, imFont);
font.texture = LoadTextureFromImage(imFont);
ImageAlphaMask(&imCopy, imFont);
font.texture = LoadTextureFromImage(imCopy);
UnloadImage(imCopy);
}
else font.texture = LoadTextureFromImage(imFont);
font.size = fontSize;
font.numChars = numChars;