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REVIEWED: ColorAlphaBlend(), support tint color

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This commit is contained in:
raysan5 2020-06-20 23:32:32 +02:00
parent 6b94ce2204
commit e18c4c1158
1 changed files with 6 additions and 12 deletions
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18
src/textures.c
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@ -3388,18 +3388,15 @@ Color ColorAlphaBlend(Color dst, Color src, Color tint)
{
Color out = WHITE;
// TODO: Compute tint color over source properly (before alpha blending)
// Apply color tint to source color
src.r = (unsigned char)(((unsigned int)src.r*(unsigned int)tint.r) >> 8);
src.g = (unsigned char)(((unsigned int)src.g*(unsigned int)tint.g) >> 8);
src.b = (unsigned char)(((unsigned int)src.b*(unsigned int)tint.b) >> 8);
src.a = (unsigned char)(((unsigned int)src.a*(unsigned int)tint.a) >> 8);
//#define COLORALPHABLEND_FLOAT
#define COLORALPHABLEND_INTEGERS
#if defined(COLORALPHABLEND_INTEGERS)
// Apply color tint to source color
// NOTE: Some problems when aplying source tinting
//src.r = (unsigned char)(((unsigned int)src.r*(unsigned int)tint.r) >> 8);
//src.g = (unsigned char)(((unsigned int)src.g*(unsigned int)tint.g) >> 8);
//src.b = (unsigned char)(((unsigned int)src.b*(unsigned int)tint.b) >> 8);
//src.a = (unsigned char)(((unsigned int)src.a*255 + (unsigned int)tint.a*(255 - src.a)) >> 8);
if (src.a == 0) out = dst;
else if (src.a == 255) out = src;
else
@ -3416,9 +3413,6 @@ Color ColorAlphaBlend(Color dst, Color src, Color tint)
}
#endif
#if defined(COLORALPHABLEND_FLOAT)
// Apply color tint to source color
//fsrc.x *= ftint.x; fsrc.y *= ftint.y; fsrc.z *= ftint.z; fsrc.w *= ftint.w;
if (src.a == 0) out = dst;
else if (src.a == 255) out = src;
else