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Render: Allow empty cliprect.

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This fixes an issue where an empty cliprect is treated the same as a NULL
cliprect, causing the render backends to disable clipping.

Also adds a new API, SDL_RenderIsClipEnabled(render) that allows you to
differentiate between:
 - SDL_RenderSetClipRect(render, NULL)
 - SDL_Rect r = {0,0,0,0}; SDL_RenderSetClipRect(render, &r);

Fixes https://bugzilla.libsdl.org/show_bug.cgi?id=2504
This commit is contained in:
J?rgen P. Tjern? 2014-04-19 13:15:41 -07:00
parent 36e11d87c8
commit defd90b6f6
11 changed files with 43 additions and 18 deletions
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1
src/dynapi/SDL_dynapi_procs.h
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@ -606,3 +606,4 @@ SDL_DYNAPI_PROC(SDL_AssertionHandler,SDL_GetAssertionHandler,(void **a),(a),retu
#ifdef __WIN32__
SDL_DYNAPI_PROC(SDL_bool,SDL_DXGIGetOutputInfo,(int a,int *b, int *c),(a,b,c),return)
#endif
SDL_DYNAPI_PROC(SDL_bool,SDL_RenderIsClipEnabled,(SDL_Renderer *a),(a),return)