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#245 allow to limit FPS below refresh rate with vsync enabled

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This commit is contained in:
FunkyFr3sh 2023-10-02 02:10:29 +02:00
parent d8982faae7
commit e7a9c5b095
2 changed files with 6 additions and 4 deletions
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4
src/dd.c
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@ -1189,7 +1189,9 @@ HRESULT dd_WaitForVerticalBlank(DWORD dwFlags, HANDLE hEvent)
{
if (g_config.maxgameticks == -2)
{
if (fpsl_dwm_flush() || fpsl_wait_for_vblank(g_config.maxfps >= 0 && !g_config.vsync))
BOOL open = !(g_config.maxfps < 0 || (g_config.vsync && g_config.maxfps >= g_ddraw->mode.dmDisplayFrequency));
if (fpsl_dwm_flush() || fpsl_wait_for_vblank(open))
return DD_OK;
}

6
src/fps_limiter.c
View File

@ -14,7 +14,7 @@ void fpsl_init()
g_fpsl.tick_length_ns = 0;
g_fpsl.tick_length = 0;
if (max_fps < 0 || g_config.vsync)
if (max_fps < 0 || (g_config.vsync && g_config.maxfps >= g_ddraw->mode.dmDisplayFrequency))
max_fps = g_ddraw->mode.dmDisplayFrequency;
if (max_fps > 1000)
@ -125,7 +125,7 @@ void fpsl_frame_start()
void fpsl_frame_end()
{
if (g_config.maxfps < 0 || g_config.vsync)
if (g_config.maxfps < 0 || (g_config.vsync && g_config.maxfps >= g_ddraw->mode.dmDisplayFrequency))
{
if (fpsl_dwm_flush() || fpsl_wait_for_vblank(TRUE))
return;
@ -135,7 +135,7 @@ void fpsl_frame_end()
{
if (g_fpsl.htimer)
{
if (g_config.vsync)
if (g_config.vsync && g_config.maxfps >= g_ddraw->mode.dmDisplayFrequency)
{
WaitForSingleObject(g_fpsl.htimer, g_fpsl.tick_length * 2);
LARGE_INTEGER due_time = { .QuadPart = -g_fpsl.tick_length_ns };