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Enable RLE more often in the software renderer

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We don't need to aggressively disable RLE acceleration anymore because the original pixels remain available for operations that aren't supported by the RLE blitter.
This commit is contained in:
Sam Lantinga
2025-11-08 13:54:28 -08:00
parent ac0edbe9d2
commit cc2a272d6f
1 changed files with 1 additions and 16 deletions
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17
src/render/software/SDL_render_sw.c
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@@ -154,10 +154,7 @@ static bool SW_CreateTexture(SDL_Renderer *renderer, SDL_Texture *texture, SDL_P
}
}
/* Only RLE encode textures without an alpha channel since the RLE coder
* discards the color values of pixels with an alpha value of zero.
*/
if (texture->access == SDL_TEXTUREACCESS_STATIC && !SDL_ISPIXELFORMAT_ALPHA(surface->format)) {
if (texture->access == SDL_TEXTUREACCESS_STATIC) {
SDL_SetSurfaceRLE(surface, true);
}
@@ -674,13 +671,6 @@ static void PrepTextureForCopy(const SDL_RenderCommand *cmd, SW_DrawStateCache *
const SDL_BlendMode blend = cmd->data.draw.blend;
SDL_Texture *texture = cmd->data.draw.texture;
SDL_Surface *surface = (SDL_Surface *)texture->internal;
const bool colormod = ((r & g & b) != 0xFF);
const bool alphamod = (a != 0xFF);
const bool blending = ((blend == SDL_BLENDMODE_ADD) || (blend == SDL_BLENDMODE_MOD) || (blend == SDL_BLENDMODE_MUL));
if (colormod || alphamod || blending) {
SDL_SetSurfaceRLE(surface, false);
}
// !!! FIXME: we can probably avoid some of these calls.
SDL_SetSurfaceColorMod(surface, r, g, b);
@@ -876,11 +866,6 @@ static bool SW_RunCommandQueue(SDL_Renderer *renderer, SDL_RenderCommand *cmd, v
if (srcrect->w == dstrect->w && srcrect->h == dstrect->h) {
SDL_BlitSurface(src, srcrect, surface, dstrect);
} else {
/* If scaling is ever done, permanently disable RLE (which doesn't support scaling)
* to avoid potentially frequent RLE encoding/decoding.
*/
SDL_SetSurfaceRLE(surface, false);
// Prevent to do scaling + clipping on viewport boundaries as it may lose proportion
if (dstrect->x < 0 || dstrect->y < 0 || dstrect->x + dstrect->w > surface->w || dstrect->y + dstrect->h > surface->h) {
SDL_Surface *tmp = SDL_CreateSurface(dstrect->w, dstrect->h, surface->format);