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Fix blit with blending (Blit_A) to RGB332 which has no palette

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1bsyl committed Jan 30, 2019
1 parent 5b07148 commit cd25c83aad93067d57b49cf5efe28a865f7dd7d2
Showing with 19 additions and 3 deletions.
  1. +19 −3 src/video/SDL_blit_A.c
@@ -1276,7 +1276,12 @@ SDL_CalculateBlitA(SDL_Surface * surface)
/* Per-pixel alpha blits */
switch (df->BytesPerPixel) {
case 1:
return BlitNto1PixelAlpha;
if (df->palette != NULL) {
return BlitNto1PixelAlpha;
} else {
/* RGB332 has no palette ! */
return BlitNtoNPixelAlpha;
}

case 2:
if (sf->BytesPerPixel == 4 && sf->Amask == 0xff000000
@@ -1326,7 +1331,12 @@ SDL_CalculateBlitA(SDL_Surface * surface)
/* Per-surface alpha blits */
switch (df->BytesPerPixel) {
case 1:
return BlitNto1SurfaceAlpha;
if (df->palette != NULL) {
return BlitNto1SurfaceAlpha;
} else {
/* RGB332 has no palette ! */
return BlitNtoNSurfaceAlpha;
}

case 2:
if (surface->map->identity) {
@@ -1374,7 +1384,13 @@ SDL_CalculateBlitA(SDL_Surface * surface)
case SDL_COPY_COLORKEY | SDL_COPY_MODULATE_ALPHA | SDL_COPY_BLEND:
if (sf->Amask == 0) {
if (df->BytesPerPixel == 1) {
return BlitNto1SurfaceAlphaKey;

if (df->palette != NULL) {
return BlitNto1SurfaceAlphaKey;
} else {
/* RGB332 has no palette ! */
return BlitNtoNSurfaceAlphaKey;
}
} else {
return BlitNtoNSurfaceAlphaKey;
}

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