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[client] put back the fps correction from drift/skew

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This commit is contained in:
Geoffrey McRae 2020-05-22 18:39:19 +10:00
parent 60f665a65c
commit f5da432d38
2 changed files with 29 additions and 15 deletions
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2
VERSION
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@ -1 +1 @@
B2-rc1-5-g9b6174793a+1
B2-rc1-6-g60f665a65c+1

42
client/src/main.c
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@ -148,10 +148,36 @@ static int renderThread(void * unused)
/* signal to other threads that the renderer is ready */
lgSignalEvent(e_startup);
int resyncCheck = 0;
struct timespec time;
clock_gettime(CLOCK_REALTIME, &time);
while(state.running)
{
// if our clock is too far out of sync, resync it
// this can happen when switching to/from a TTY, or due to clock drift
// we only check this once every 100 frames
if (state.frameTime > 0 && ++resyncCheck == 100)
{
resyncCheck = 0;
struct timespec tmp;
clock_gettime(CLOCK_REALTIME, &tmp);
if (tmp.tv_nsec - time.tv_nsec < 0)
{
tmp.tv_sec -= time.tv_sec - 1;
tmp.tv_nsec = 1000000000 + tmp.tv_nsec - time.tv_nsec;
}
else
{
tmp.tv_sec -= time.tv_sec;
tmp.tv_nsec -= time.tv_nsec;
}
if (tmp.tv_sec > 1)
clock_gettime(CLOCK_REALTIME, &time);
}
if (state.lgrResize)
{
if (state.lgr)
@ -193,7 +219,6 @@ static int renderThread(void * unused)
if (state.frameTime > 0)
{
clock_gettime(CLOCK_REALTIME, &time);
uint64_t nsec = time.tv_nsec + state.frameTime;
if(nsec > 1e9)
{
@ -1300,20 +1325,9 @@ static int lg_run()
// ensure renderer viewport is aware of the current window size
updatePositionInfo();
//Auto detect active monitor refresh rate for FPS Limit if no FPS Limit was passed.
// use a default of 60FPS now that frame updates are host update triggered
if (params.fpsMin == -1)
{
SDL_DisplayMode current;
if (SDL_GetCurrentDisplayMode(SDL_GetWindowDisplayIndex(state.window), &current) == 0)
{
state.frameTime = 1e9 / current.refresh_rate;
}
else
{
DEBUG_WARN("Unable to capture monitor refresh rate using the default FPS minimum of 60");
state.frameTime = 1e9 / 60;
}
}
state.frameTime = 1e9 / 60;
else
{
DEBUG_INFO("Using the FPS minimum from args: %d", params.fpsMin);