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Added support for simulated vsync in the renderer

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This kicks in if the platform doesn't support vsync directly, or if the present fails for some reason (e.g. minimized on some platforms)

Fixes https://github.com/libsdl-org/SDL/issues/5134
This commit is contained in:
Sam Lantinga
2022-09-15 01:00:12 -07:00
parent 339f7a2f6b
commit d744aafb05
15 changed files with 115 additions and 37 deletions
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5
src/render/opengl/SDL_render_gl.c
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@@ -22,6 +22,7 @@
#if SDL_VIDEO_RENDER_OGL && !SDL_RENDER_DISABLED
#include "SDL_hints.h"
#include "../../video/SDL_sysvideo.h" /* For SDL_GL_SwapWindowWithResult */
#include "SDL_opengl.h"
#include "../SDL_sysrender.h"
#include "SDL_shaders_gl.h"
@@ -1502,12 +1503,12 @@ GL_RenderReadPixels(SDL_Renderer * renderer, const SDL_Rect * rect,
return status;
}
static void
static int
GL_RenderPresent(SDL_Renderer * renderer)
{
GL_ActivateRenderer(renderer);
SDL_GL_SwapWindow(renderer->window);
return SDL_GL_SwapWindowWithResult(renderer->window);
}
static void