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fixed MidiClock now working with ardour

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This commit is contained in:
jens
2025-08-18 18:22:55 +02:00
parent 314b57b1ed
commit db4fdf68ff
2 changed files with 38 additions and 50 deletions
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src/plug/JK_MidiClock.cpp
+32 -41
View File
@@ -31,9 +31,7 @@ JK_MidiClock::JK_MidiClock()
m_stopMessage = new MidiMessage(MidiMessage::midiStop());
m_clockMessage = new MidiMessage(MidiMessage::midiClock());
m_songPositionMessage = new MidiMessage(MidiMessage::songPositionPointer(0));
m_last_sample_pos_sync = 0;
m_syncSamplePos = 0;
m_syncNext_smp_f = 0;
m_sample_remain = 0;
}
//=================================================================================================
void JK_MidiClock::generateMidiclock(const AudioPlayHead::CurrentPositionInfo &posInfo,
@@ -61,9 +59,6 @@ void JK_MidiClock::generateMidiclock(const AudioPlayHead::CurrentPositionInfo &p
const int clockDistanceInSamples = roundToInt(clockDistanceInSamples_f);
const double quant = (60.0 / posInfo.bpm) * sampleRate;
const double hostSamplePos_f = hostPpqPosition * quant;
double syncSamplePos_f = hostSamplePos_f;
if (posInfo.isPlaying || posInfo.isRecording)
{
@@ -81,7 +76,7 @@ void JK_MidiClock::generateMidiclock(const AudioPlayHead::CurrentPositionInfo &p
sendSongPositionPointerMessage(m_ppqToStartSyncAt, 0, midiBuffer);
SynthDebug("m_ppqToStartSyncAt %f", m_ppqToStartSyncAt);
}
m_syncNext_smp_f = m_ppqToStartSyncAt * quant + clockDistanceInSamples_f;
m_sample_remain = clockDistanceInSamples;
}
else
@@ -116,13 +111,10 @@ void JK_MidiClock::generateMidiclock(const AudioPlayHead::CurrentPositionInfo &p
m_syncFlag = 0;
}
}
m_syncNext_smp_f = m_ppqToStartSyncAt * quant + clockDistanceInSamples_f;
m_sample_remain = clockDistanceInSamples;
}
}
int64 syncSamplePos = (int64)std::round(syncSamplePos_f);
double sample_offset = syncSamplePos_f - m_syncSamplePos;
for (int posInBuffer = 0; posInBuffer < bufferSize; ++posInBuffer)
{
m_syncPpqPosition = hostPpqPosition + (posInBuffer * ppqPerSample);
@@ -159,47 +151,46 @@ void JK_MidiClock::generateMidiclock(const AudioPlayHead::CurrentPositionInfo &p
}
}
}
}
#if 0
//For best timing we should never interupt Midiclock messages!
//Seems that some slaves constantly adjusting their internal clock
//to Midiclock even if they are in stop mode.
double sample_pos = (double)posInBuffer + sample_offset;
double distance = fabs(syncSamplePos_f-m_last_sample_pos_sync);
if ((syncSamplePos % clockDistanceInSamples) == 0 and sample_pos >= 0)
int buffer_remain = bufferSize;
int posInBuffer = 0;
int buffer_consume = 0;
while(buffer_remain)
{
SynthDebug("Distance (soll) : %f", clockDistanceInSamples_f);
SynthDebug("Distance (ist) : %f", distance);
SynthDebug("syncSamplePos_f : %f", syncSamplePos_f);
SynthDebug("sample_offset : %f", sample_offset);
// SynthDebug("MidiClock at Sample Sync: %d | PPQ Host: %f | PPQ Sync: %f", syncSamplePos-m_last_sample_pos_sync, hostPpqPosition-m_last_ppq_pos_host, m_syncPpqPosition-m_last_syncPpqPosition);
SynthDebug("MidiClock at Sample Sync: %f, diff %f", sample_pos, syncSamplePos_f-m_last_sample_pos_sync);
m_last_sample_pos_sync = syncSamplePos_f;
m_last_ppq_pos_host = hostPpqPosition;
m_last_syncPpqPosition = m_syncPpqPosition;
midiBuffer->addEvent(*m_clockMessage, roundToInt(sample_pos));
if (m_sample_remain > buffer_remain)
{
m_sample_remain -= buffer_remain;
buffer_consume = buffer_remain;
}
m_syncSamplePos = ++syncSamplePos;
syncSamplePos_f += 1.0;
#else
double curr_sample_pos = hostSamplePos_f + (double)posInBuffer;
if (fabs(curr_sample_pos - m_syncNext_smp_f) <= 0.5)
else
{
buffer_consume = m_sample_remain;
m_sample_remain = 0;
}
buffer_remain -= buffer_consume;
posInBuffer += buffer_consume;
if (buffer_remain == 0)
{
break;
}
if (m_sample_remain == 0)
{
m_sample_remain = clockDistanceInSamples;
SynthDebug("posInBuffer : %d", posInBuffer);
SynthDebug("hostSamplePos_f : %f", hostSamplePos_f);
SynthDebug("hostSamplePos_f + posInbuffer : %f", hostSamplePos_f + posInBuffer);
SynthDebug("clockDistanceInSamples_f (soll) : %f", clockDistanceInSamples_f);
SynthDebug("clockDistanceInSamples_f (ist) : %f", curr_sample_pos - m_last_sample_pos_sync);
SynthDebug("hostPpqPosition : %f", hostPpqPosition);
SynthDebug("hostPpqPosition (Q) : %f", getNearestInPPQ(hostPpqPosition, 96));
SynthDebug("hostSamplePos (Q) : %f", getNearestInPPQ(hostPpqPosition, 96) * quant);
m_syncNext_smp_f += clockDistanceInSamples_f;
m_last_sample_pos_sync = curr_sample_pos;
SynthDebug("m_syncNext_smp_f : %f", m_syncNext_smp_f);
midiBuffer->addEvent(*m_clockMessage, roundToInt(posInBuffer));
}
#endif
}
m_wasPlaying = true;
@@ -215,9 +206,9 @@ void JK_MidiClock::generateMidiclock(const AudioPlayHead::CurrentPositionInfo &p
}
m_syncPpqPosition = hostPpqPosition;
m_syncNext_smp_f = hostSamplePos_f + clockDistanceInSamples_f;
m_syncFlag = startSlave_;
m_wasPlaying = false;
}
}
src/plug/JK_MidiClock.h
+2 -5
View File
@@ -52,11 +52,7 @@ private:
bool m_followSongPosition;
uint8 m_syncFlag;
int m_ppqOffset;
double m_last_sample_pos_sync;
double m_last_ppq_pos_host;
double m_last_syncPpqPosition;
double m_syncSamplePos;
double m_syncNext_smp_f;
int m_sample_remain;
static const int cycleEnd_ = 1;
static const int startSlave_ = 2;
@@ -71,6 +67,7 @@ private:
const double sampleRate, const double ppqPerSample);
double getNearestSixteenthInPPQ(const double ppqPosition) {return ceil(ppqPosition * 4.0) / 4.0;}
double getNearestInPPQ(const double ppqPosition, double quantizer) {return ceil(ppqPosition * quantizer / 4) / (quantizer / 4);}
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(JK_MidiClock);
};