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sys_sdl_win.: call timeBeginPeriod(1) to set OS timer resolution to 1ms.

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Works around buffer underruns with directsound and SDL2, but also will
make Sleep()/SDL_Dleay() accurate to 1ms which should help framerate
stability.

git-svn-id: svn://svn.code.sf.net/p/quakespasm/code/trunk/quakespasm@1200 af15c1b1-3010-417e-b628-4374ebc0bcbd
This commit is contained in:
Eric Wasylishen 2015-04-14 18:01:33 +00:00
parent bcd429b4e3
commit 4800fbde34
1 changed files with 12 additions and 0 deletions
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12
Quake/sys_sdl_win.c
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@ -25,6 +25,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#define WIN32_LEAN_AND_MEAN
#endif
#include <windows.h>
#include <mmsystem.h>
#include "quakedef.h"
@ -204,10 +205,21 @@ static void Sys_SetDPIAware (void)
FreeLibrary (hUser32);
}
static void Sys_SetTimerResolution(void)
{
/* Set OS timer resolution to 1ms.
Works around buffer underruns with directsound and SDL2, but also
will make Sleep()/SDL_Dleay() accurate to 1ms which should help framerate
stability.
*/
timeBeginPeriod (1);
}
void Sys_Init (void)
{
OSVERSIONINFO vinfo;
Sys_SetTimerResolution ();
Sys_SetDPIAware ();
memset (cwd, 0, sizeof(cwd));