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Precalculate refresh rate

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Slower PCs can have issue querying mode over and over. This might kinda suck for windowed mode if you have different refresh rate displays but oh well
This commit is contained in:
Sally Coolatta 2022-04-27 22:42:47 -04:00 committed by Eidolon
parent 51553e7f75
commit d2282c98cc
1 changed files with 29 additions and 16 deletions
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45
src/sdl/i_video.c
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@ -1602,6 +1602,27 @@ boolean VID_CheckRenderer(void)
return rendererchanged;
}
static UINT32 refresh_rate;
static UINT32 VID_GetRefreshRate(void)
{
int index = SDL_GetWindowDisplayIndex(window);
SDL_DisplayMode m;
if (SDL_WasInit(SDL_INIT_VIDEO) == 0)
{
// Video not init yet.
return 0;
}
if (SDL_GetCurrentDisplayMode(index, &m) != 0)
{
// Error has occurred.
return 0;
}
return m.refresh_rate;
}
INT32 VID_SetMode(INT32 modeNum)
{
SDLdoUngrabMouse();
@ -1622,6 +1643,8 @@ INT32 VID_SetMode(INT32 modeNum)
src_rect.w = vid.width;
src_rect.h = vid.height;
refresh_rate = VID_GetRefreshRate();
VID_CheckRenderer();
return SDL_TRUE;
}
@ -1971,20 +1994,10 @@ void I_GetCursorPosition(INT32 *x, INT32 *y)
UINT32 I_GetRefreshRate(void)
{
int index = SDL_GetWindowDisplayIndex(window);
SDL_DisplayMode m;
if (SDL_WasInit(SDL_INIT_VIDEO) == 0)
{
// Video not init yet.
return 0;
}
if (SDL_GetDesktopDisplayMode(index, &m) != 0)
{
// Error has occurred.
return 0;
}
return m.refresh_rate;
// Moved to VID_GetRefreshRate.
// Precalculating it like that won't work as
// well for windowed mode since you can drag
// the window around, but very slow PCs might have
// trouble querying mode over and over again.
return refresh_rate;
}