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render: Batching is always enabled now!

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Make sure your app uses SDL_RenderFlush() before it talks to D3D/OpenGL/etc!

Fixes #8584.
This commit is contained in:
Ryan C. Gordon 2023-11-20 20:26:12 -05:00
parent b24d6bd59a
commit 6ba90f7775
7 changed files with 24 additions and 78 deletions
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18
include/SDL3/SDL_render.h
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@ -1559,20 +1559,12 @@ extern DECLSPEC void SDLCALL SDL_DestroyRenderer(SDL_Renderer *renderer);
* are planning to call into OpenGL/Direct3D/Metal/whatever directly in
* addition to using an SDL_Renderer.
*
* This is for a very-specific case: if you are using SDL's render API, you
* asked for a specific renderer backend (OpenGL, Direct3D, etc), you set
* SDL_HINT_RENDER_BATCHING to "1", and you plan to make OpenGL/D3D/whatever
* calls in addition to SDL render API calls. If all of this applies, you
* should call SDL_RenderFlush() between calls to SDL's render API and the
* low-level API you're using in cooperation.
* This is for a very-specific case: if you are using SDL's render API, and
* you plan to make OpenGL/D3D/whatever calls in addition to SDL render API
* calls. If this applies, you should call SDL_RenderFlush() between calls to
* SDL's render API and the low-level API you're using in cooperation.
*
* In all other cases, you can ignore this function. This is only here to get
* maximum performance out of a specific situation. In all other cases, SDL
* will do the right thing, perhaps at a performance loss.
*
* This function is first available in SDL 2.0.10, and is not needed in 2.0.9
* and earlier, as earlier versions did not queue rendering commands at all,
* instead flushing them to the OS immediately.
* In all other cases, you can ignore this function.
*
* \param renderer the rendering context
* \returns 0 on success or a negative error code on failure; call