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Drop out of SDL_UpdateTexture() early if the rectangle is zero pixels.

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Hopefully makes static analysis happy about a zero-byte malloc elsewhere.
This commit is contained in:
Ryan C. Gordon 2015-05-26 16:42:36 -04:00
parent 2e2b84fb32
commit d5a578531b
1 changed files with 3 additions and 1 deletions
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4
src/render/SDL_render.c
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@ -820,7 +820,9 @@ SDL_UpdateTexture(SDL_Texture * texture, const SDL_Rect * rect,
rect = &full_rect; rect = &full_rect;
} }
if (texture->yuv) { if ((rect->w == 0) || (rect->h == 0)) {
return 0; /* nothing to do. */
} else if (texture->yuv) {
return SDL_UpdateTextureYUV(texture, rect, pixels, pitch); return SDL_UpdateTextureYUV(texture, rect, pixels, pitch);
} else if (texture->native) { } else if (texture->native) {
return SDL_UpdateTextureNative(texture, rect, pixels, pitch); return SDL_UpdateTextureNative(texture, rect, pixels, pitch);