21 #include "JackTimedDriver.h"
22 #include "JackEngineControl.h"
24 #include "JackCompilerDeps.h"
32 int JackTimedDriver::FirstCycle(jack_time_t cur_time_usec)
34 fAnchorTimeUsec = cur_time_usec;
35 return int((
double(fEngineControl->fBufferSize) * 1000000) /
double(fEngineControl->fSampleRate));
38 int JackTimedDriver::CurrentCycle(jack_time_t cur_time_usec)
40 return int(((
double(fCycleCount) *
double(fEngineControl->fBufferSize) * 1000000.) /
double(fEngineControl->fSampleRate)) - (cur_time_usec - fAnchorTimeUsec));
43 int JackTimedDriver::Start()
46 return JackAudioDriver::Start();
49 void JackTimedDriver::ProcessWait()
51 jack_time_t cur_time_usec = GetMicroSeconds();
54 if (fCycleCount++ == 0) {
55 wait_time_usec = FirstCycle(cur_time_usec);
57 wait_time_usec = CurrentCycle(cur_time_usec);
60 if (wait_time_usec < 0) {
61 NotifyXRun(cur_time_usec,
float(cur_time_usec - fBeginDateUst));
64 jack_error(
"JackTimedDriver::Process XRun = %ld usec", (cur_time_usec - fBeginDateUst));
68 JackSleep(wait_time_usec);
71 int JackWaiterDriver::ProcessNull()
73 JackDriver::CycleTakeBeginTime();
76 if (fEngineControl->fSyncMode) {
83 JackDriver::CycleTakeEndTime();
SERVER_EXPORT void jack_error(const char *fmt,...)