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Make sure the surface used for a software renderer is a valid format

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Fixes https://github.com/libsdl-org/SDL/issues/13323
This commit is contained in:
Sam Lantinga
2025-09-07 12:55:33 -07:00
parent 9ccdaa49f4
commit ab17d66884
1 changed files with 5 additions and 0 deletions
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5
src/render/software/SDL_render_sw.c
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@@ -1125,6 +1125,11 @@ bool SW_CreateRendererForSurface(SDL_Renderer *renderer, SDL_Surface *surface, S
return SDL_InvalidParamError("surface"); return SDL_InvalidParamError("surface");
} }
if (SDL_BITSPERPIXEL(surface->format) < 8 ||
SDL_BITSPERPIXEL(surface->format) > 32) {
return SDL_SetError("Unsupported surface format");
}
renderer->software = true; renderer->software = true;
data = (SW_RenderData *)SDL_calloc(1, sizeof(*data)); data = (SW_RenderData *)SDL_calloc(1, sizeof(*data));