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Add SDL_RenderSetVSync()

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Currently, if an application wants to toggle VSync, they'd have to tear
down the renderer and recreate it. This patch fixes that by letting
applications call SDL_RenderSetVSync().

This is the same as the patch in #3673, except it applies to all
renderers (including PSP, even thought it seems that the VSync flag is
disabled for that renderer). Furthermore, the renderer flags also change
as well, which #3673 didn't do. It is also an API instead of using hint
callbacks (which could be potentially dangerous).

Closes #3673.
This commit is contained in:
Misa
2021-03-07 15:20:45 -08:00
committed by Sam Lantinga
parent b2504b5da6
commit 4549769d7d
13 changed files with 168 additions and 0 deletions
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11
src/render/SDL_render.c
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@@ -4124,4 +4124,15 @@ SDL_GetBlendModeAlphaOperation(SDL_BlendMode blendMode)
return (SDL_BlendOperation)(((Uint32)blendMode >> 16) & 0xF);
}
int
SDL_RenderSetVSync(SDL_Renderer * renderer, int vsync)
{
CHECK_RENDERER_MAGIC(renderer, -1);
if (renderer->SetVSync) {
return renderer->SetVSync(renderer, vsync);
}
return SDL_Unsupported();
}
/* vi: set ts=4 sw=4 expandtab: */