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SDL: Use RLE acceleration for SDL2 transparent surfaces

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We were already doing it for SDL1.2, but with SDL2 the SDL_RLEACCEL
is not passed to SDL and instead we need to call SDL_SetSurfaceRLE.
This commit is contained in:
Thierry Crozat 2017-11-11 00:18:57 +00:00
parent 1d1f898c01
commit 6b4195a542
1 changed files with 10 additions and 1 deletions
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11
backends/platform/sdl/sdl.cpp
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@ -754,10 +754,13 @@ int SDL_SetAlpha(SDL_Surface *surface, Uint32 flag, Uint8 alpha) {
if (SDL_SetSurfaceBlendMode(surface, SDL_BLENDMODE_NONE)) {
return -1;
}
SDL_SetSurfaceRLE(surface, 0);
} else {
if (SDL_SetSurfaceBlendMode(surface, SDL_BLENDMODE_BLEND)) {
return -1;
}
if (flag & SDL_RLEACCEL)
SDL_SetSurfaceRLE(surface, 1);
}
return 0;
@ -765,7 +768,13 @@ int SDL_SetAlpha(SDL_Surface *surface, Uint32 flag, Uint8 alpha) {
#undef SDL_SetColorKey
int SDL_SetColorKey_replacement(SDL_Surface *surface, Uint32 flag, Uint32 key) {
return SDL_SetColorKey(surface, SDL_TRUE, key) ? -1 : 0;
if (SDL_SetColorKey(surface, SDL_TRUE, key)) {
return -1;
}
if (flag & SDL_RLEACCEL)
SDL_SetSurfaceRLE(surface, 1);
return 0;
}
#endif