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[mq]: 3027_rleperf.diff

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This commit is contained in:
Sam Lantinga 2015-06-19 22:12:47 -07:00
parent 21935b0313
commit 82ae4f6fc5
1 changed files with 22 additions and 0 deletions
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22
src/render/software/SDL_render_sw.c
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@ -253,6 +253,12 @@ static int
SW_SetTextureColorMod(SDL_Renderer * renderer, SDL_Texture * texture)
{
SDL_Surface *surface = (SDL_Surface *) texture->driverdata;
/* If the color mod is ever enabled (non-white), permanently disable RLE (which doesn't support
* color mod) to avoid potentially frequent RLE encoding/decoding.
*/
if ((texture->r & texture->g & texture->b) != 255) {
SDL_SetSurfaceRLE(surface, 0);
}
return SDL_SetSurfaceColorMod(surface, texture->r, texture->g,
texture->b);
}
@ -261,6 +267,12 @@ static int
SW_SetTextureAlphaMod(SDL_Renderer * renderer, SDL_Texture * texture)
{
SDL_Surface *surface = (SDL_Surface *) texture->driverdata;
/* If the texture ever has multiple alpha values (surface alpha plus alpha channel), permanently
* disable RLE (which doesn't support this) to avoid potentially frequent RLE encoding/decoding.
*/
if (texture->a != 255 && surface->format->Amask) {
SDL_SetSurfaceRLE(surface, 0);
}
return SDL_SetSurfaceAlphaMod(surface, texture->a);
}
@ -268,6 +280,12 @@ static int
SW_SetTextureBlendMode(SDL_Renderer * renderer, SDL_Texture * texture)
{
SDL_Surface *surface = (SDL_Surface *) texture->driverdata;
/* If add or mod blending are ever enabled, permanently disable RLE (which doesn't support
* them) to avoid potentially frequent RLE encoding/decoding.
*/
if ((texture->blendMode == SDL_BLENDMODE_ADD || texture->blendMode == SDL_BLENDMODE_MOD)) {
SDL_SetSurfaceRLE(surface, 0);
}
return SDL_SetSurfaceBlendMode(surface, texture->blendMode);
}
@ -553,6 +571,10 @@ SW_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
if ( srcrect->w == final_rect.w && srcrect->h == final_rect.h ) {
return SDL_BlitSurface(src, srcrect, surface, &final_rect);
} else {
/* If scaling is ever done, permanently disable RLE (which doesn't support scaling)
* to avoid potentially frequent RLE encoding/decoding.
*/
SDL_SetSurfaceRLE(surface, 0);
return SDL_BlitScaled(src, srcrect, surface, &final_rect);
}
}