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Fixed bug 1622 - SDL_RenderSetViewport with empty SDL_Rect raises wrong error for OpenGL rendering backend

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It's now legal to set an empty viewport rect - it will prevent any rendering.

Also added an API to query the output size: SDL_GetRendererOutputSize()
This commit is contained in:
Sam Lantinga 2013-05-29 03:07:55 -07:00
parent b337b40e33
commit c55f53aa40
8 changed files with 103 additions and 64 deletions
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1
src/render/SDL_sysrender.h
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@ -78,6 +78,7 @@ struct SDL_Renderer
const void *magic;
void (*WindowEvent) (SDL_Renderer * renderer, const SDL_WindowEvent *event);
int (*GetOutputSize) (SDL_Renderer * renderer, int *w, int *h);
int (*CreateTexture) (SDL_Renderer * renderer, SDL_Texture * texture);
int (*SetTextureColorMod) (SDL_Renderer * renderer,
SDL_Texture * texture);