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Use wxGetUTCTimeMillis in preference to wxGetLocalTimeMillis

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For internal time-difference test, it is significantly faster, and does not suffer from daylight-saving time shifts.
This commit is contained in:
James Crook 2018-10-29 17:52:35 +00:00
parent 0fbea5f9ea
commit 6a4663e19c
4 changed files with 11 additions and 11 deletions
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2
src/AudioIO.cpp
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@ -5044,7 +5044,7 @@ bool AudioIoCallback::FillOutputBuffers(
// wxASSERT( maxLen == toGet );
em.RealtimeProcessEnd();
mLastPlaybackTimeMillis = ::wxGetLocalTimeMillis();
mLastPlaybackTimeMillis = ::wxGetUTCTimeMillis();
ClampBuffer( outputFloats, framesPerBuffer*numPlaybackChannels );
if (outputMeterFloats != outputFloats)

4
src/effects/EffectManager.cpp
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@ -751,7 +751,7 @@ size_t EffectManager::RealtimeProcess(int group, unsigned chans, float **buffers
// Remember when we started so we can calculate the amount of latency we
// are introducing
wxMilliClock_t start = wxGetLocalTimeMillis();
wxMilliClock_t start = wxGetUTCTimeMillis();
// Allocate the in/out buffer arrays
float **ibuf = (float **) alloca(chans * sizeof(float *));
@ -798,7 +798,7 @@ size_t EffectManager::RealtimeProcess(int group, unsigned chans, float **buffers
}
// Remember the latency
mRealtimeLatency = (int) (wxGetLocalTimeMillis() - start).GetValue();
mRealtimeLatency = (int) (wxGetUTCTimeMillis() - start).GetValue();
mRealtimeLock.Leave();

6
src/effects/VST/VSTEffect.cpp
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@ -1153,7 +1153,7 @@ VSTEffect::VSTEffect(const wxString & path, VSTEffect *master)
memset(&mTimeInfo, 0, sizeof(mTimeInfo));
mTimeInfo.samplePos = 0.0;
mTimeInfo.sampleRate = 44100.0; // this is a bogus value, but it's only for the display
mTimeInfo.nanoSeconds = wxGetLocalTimeMillis().ToDouble();
mTimeInfo.nanoSeconds = wxGetUTCTimeMillis().ToDouble();
mTimeInfo.tempo = 120.0;
mTimeInfo.timeSigNumerator = 4;
mTimeInfo.timeSigDenominator = 4;
@ -1390,7 +1390,7 @@ bool VSTEffect::ProcessInitialize(sampleCount WXUNUSED(totalLen), ChannelNames W
// Initialize time info
memset(&mTimeInfo, 0, sizeof(mTimeInfo));
mTimeInfo.sampleRate = mSampleRate;
mTimeInfo.nanoSeconds = wxGetLocalTimeMillis().ToDouble();
mTimeInfo.nanoSeconds = wxGetUTCTimeMillis().ToDouble();
mTimeInfo.tempo = 120.0;
mTimeInfo.timeSigNumerator = 4;
mTimeInfo.timeSigDenominator = 4;
@ -2414,7 +2414,7 @@ void VSTEffect::NeedEditIdle(bool state)
VstTimeInfo *VSTEffect::GetTimeInfo()
{
mTimeInfo.nanoSeconds = wxGetLocalTimeMillis().ToDouble();
mTimeInfo.nanoSeconds = wxGetUTCTimeMillis().ToDouble();
return &mTimeInfo;
}

10
src/menus/SelectMenus.cpp
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@ -168,7 +168,7 @@ enum TimeUnit {
struct SeekInfo
{
wxLongLong mLastSelectionAdjustment { ::wxGetLocalTimeMillis() };
wxLongLong mLastSelectionAdjustment { ::wxGetUTCTimeMillis() };
double mSeekShort{ 0.0 };
double mSeekLong{ 0.0 };
};
@ -183,7 +183,7 @@ void SeekWhenAudioActive(double seekStep, wxLongLong &lastSelectionAdjustment)
return;
}
#endif
lastSelectionAdjustment = ::wxGetLocalTimeMillis();
lastSelectionAdjustment = ::wxGetUTCTimeMillis();
gAudioIO->SeekStream(seekStep);
}
@ -355,7 +355,7 @@ void SeekLeftOrRight
// If the last adjustment was very recent, we are
// holding the key down and should move faster.
const wxLongLong curtime = ::wxGetLocalTimeMillis();
const wxLongLong curtime = ::wxGetUTCTimeMillis();
enum { MIN_INTERVAL = 50 };
const bool fast =
(curtime - info.mLastSelectionAdjustment < MIN_INTERVAL);
@ -379,7 +379,7 @@ void DoCursorMove(
}
else
{
lastSelectionAdjustment = ::wxGetLocalTimeMillis();
lastSelectionAdjustment = ::wxGetUTCTimeMillis();
MoveWhenAudioInactive(project, seekStep, TIME_UNIT_SECONDS);
}
@ -397,7 +397,7 @@ void DoBoundaryMove(AudacityProject &project, int step, SeekInfo &info)
// If the last adjustment was very recent, we are
// holding the key down and should move faster.
wxLongLong curtime = ::wxGetLocalTimeMillis();
wxLongLong curtime = ::wxGetUTCTimeMillis();
int pixels = step;
if( curtime - info.mLastSelectionAdjustment < 50 )
{