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SDL: Support setting vsync at runtime

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Allows vid_wait to work under software without having to switch to OpenGL and then back

Yeah, support on windows will require a newer version of SDL.
I'm just pushing this so the code is already there.
This commit is contained in:
SteelT 2021-12-09 01:32:08 -05:00
parent dfadd430b7
commit 512342bf7c
1 changed files with 11 additions and 1 deletions
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12
src/sdl/i_video.c
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@ -106,8 +106,10 @@ rendermode_t chosenrendermode = render_none; // set by command line arguments
boolean highcolor = false;
static void Impl_SetVsync(void);
// synchronize page flipping with screen refresh
consvar_t cv_vidwait = CVAR_INIT ("vid_wait", "On", CV_SAVE, CV_OnOff, NULL);
consvar_t cv_vidwait = CVAR_INIT ("vid_wait", "On", CV_SAVE|CV_CALL|CV_NOINIT, CV_OnOff, Impl_SetVsync);
static consvar_t cv_stretch = CVAR_INIT ("stretch", "Off", CV_SAVE|CV_NOSHOWHELP, CV_OnOff, NULL);
static consvar_t cv_alwaysgrabmouse = CVAR_INIT ("alwaysgrabmouse", "Off", CV_SAVE, CV_OnOff, NULL);
@ -2061,3 +2063,11 @@ void I_ShutdownGraphics(void)
framebuffer = SDL_FALSE;
}
#endif
static void Impl_SetVsync(void)
{
#if SDL_VERSION_ATLEAST(2,0,18)
if (renderer)
SDL_RenderSetVSync(renderer, cv_vidwait.value);
#endif
}