void AUInstrumentBase::PerformEvents(const AudioTimeStamp& inTimeStamp)
{
#if DEBUG_PRINT_RENDER
printf("AUInstrumentBase::PerformEvents\n");
#endif
SynthEvent *event;
SynthGroupElement *group;
while ((event = mEventQueue.ReadItem()) != NULL)
{
#if DEBUG_PRINT_RENDER
printf("event %08X %d\n", event, event->GetEventType());
#endif
switch(event->GetEventType())
{
case SynthEvent::kEventType_NoteOn :
RealTimeStartNote(GetElForGroupID (event->GetGroupID()), event->GetNoteID(),
event->GetOffsetSampleFrame(), *event->GetParams());
break;
case SynthEvent::kEventType_NoteOff :
RealTimeStopNote(GetElForGroupID (event->GetGroupID()), event->GetNoteID(),
event->GetOffsetSampleFrame());
break;
case SynthEvent::kEventType_SustainOn :
group = GetElForGroupID (event->GetGroupID());
group->SustainOn(event->GetOffsetSampleFrame());
break;
case SynthEvent::kEventType_SustainOff :
group = GetElForGroupID (event->GetGroupID());
group->SustainOff(event->GetOffsetSampleFrame());
break;
case SynthEvent::kEventType_SostenutoOn :
group = GetElForGroupID (event->GetGroupID());
group->SostenutoOn(event->GetOffsetSampleFrame());
break;
case SynthEvent::kEventType_SostenutoOff :
group = GetElForGroupID (event->GetGroupID());
group->SostenutoOff(event->GetOffsetSampleFrame());
break;
case SynthEvent::kEventType_AllNotesOff :
group = GetElForGroupID (event->GetGroupID());
group->AllNotesOff(event->GetOffsetSampleFrame());
break;
case SynthEvent::kEventType_AllSoundOff :
group = GetElForGroupID (event->GetGroupID());
group->AllSoundOff(event->GetOffsetSampleFrame());
break;
case SynthEvent::kEventType_ResetAllControllers :
group = GetElForGroupID (event->GetGroupID());
group->ResetAllControllers(event->GetOffsetSampleFrame());
break;
}
mEventQueue.AdvanceReadPtr();
}
}
ComponentResult AUInstrumentBase::StopNote( MusicDeviceGroupID inGroupID,
NoteInstanceID inNoteInstanceID,
UInt32 inOffsetSampleFrame)
{
#if DEBUG_PRINT
printf("AUInstrumentBase::StopNote %d %d\n", inGroupID, inNoteInstanceID);
#endif
ComponentResult err = noErr;
if (InRenderThread ())
{
err = RealTimeStopNote(
GetElForGroupID(inGroupID),
inNoteInstanceID,
inOffsetSampleFrame);
}
else
{
SynthEvent *event = mEventQueue.WriteItem();
if (!event) return -1; // queue full
event->Set(
SynthEvent::kEventType_NoteOff,
inGroupID,
inNoteInstanceID,
inOffsetSampleFrame,
NULL
);
mEventQueue.AdvanceWritePtr();
}
return err;
}
OSStatus AUInstrumentBase::HandleControlChange( UInt8 inChannel,
UInt8 inController,
UInt8 inValue,
UInt32 inStartFrame)
{
#if DEBUG_PRINT
printf("AUInstrumentBase::HandleControlChange ch %u ctlr: %u val: %u frm: %u\n", inChannel, inController, inValue, inStartFrame);
#endif
SynthGroupElement *gp = GetElForGroupID(inChannel);
if (gp)
{
gp->ChannelMessage(inController, inValue);
}
else
return kAudioUnitErr_InvalidElement;
switch (inController)
{
case kMidiController_Sustain :
if (inValue >= 64)
SendPedalEvent(inChannel, SynthEvent::kEventType_SustainOn, inStartFrame);
else
SendPedalEvent(inChannel, SynthEvent::kEventType_SustainOff, inStartFrame);
break;
case kMidiController_Sostenuto :
if (inValue >= 64)
SendPedalEvent(inChannel, SynthEvent::kEventType_SostenutoOn, inStartFrame);
else
SendPedalEvent(inChannel, SynthEvent::kEventType_SostenutoOff, inStartFrame);
break;
}
return noErr;
}
OSStatus AUInstrumentBase::HandleChannelPressure(UInt8 inChannel,
UInt8 inValue,
UInt32 inStartFrame)
{
SynthGroupElement *gp = GetElForGroupID(inChannel);
if (gp)
{
gp->ChannelMessage(kMidiMessage_ChannelPressure, inValue);
return noErr;
}
else
return kAudioUnitErr_InvalidElement;
}
OSStatus AUInstrumentBase::HandlePitchWheel( UInt8 inChannel,
UInt8 inPitch1, // LSB
UInt8 inPitch2, // MSB
UInt32 inStartFrame)
{
SynthGroupElement *gp = GetElForGroupID(inChannel);
if (gp)
{
gp->ChannelMessage(kMidiMessage_PitchWheel, (inPitch2 << 7) | inPitch1);
return noErr;
}
else
return kAudioUnitErr_InvalidElement;
}
OSStatus AUInstrumentBase::HandlePolyPressure( UInt8 inChannel,
UInt8 inKey,
UInt8 inValue,
UInt32 inStartFrame)
{
SynthGroupElement *gp = GetElForGroupID(inChannel);
if (gp)
{
// Combine key and value into single argument. UGLY!
gp->ChannelMessage(kMidiMessage_PolyPressure, (inKey << 7) | inValue);
return noErr;
}
else
return kAudioUnitErr_InvalidElement;
}
OSStatus AUInstrumentBase::HandleProgramChange( UInt8 inChannel,
UInt8 inValue)
{
#if DEBUG_PRINT
printf("AUInstrumentBase::HandleProgramChange %u %u\n", inChannel, inValue);
#endif
SynthGroupElement *gp = GetElForGroupID(inChannel);
if (gp)
{
gp->ChannelMessage(kMidiMessage_ProgramChange, inValue);
return noErr;
}
else
return kAudioUnitErr_InvalidElement;
}
OSStatus AUInstrumentBase::SendPedalEvent(MusicDeviceGroupID inGroupID, UInt32 inEventType, UInt32 inOffsetSampleFrame)
{
if (InRenderThread ())
{
SynthGroupElement *group = GetElForGroupID(inGroupID);
if (!group)
return kAudioUnitErr_InvalidElement;
switch (inEventType)
{
case SynthEvent::kEventType_SustainOn :
group->SustainOn(inOffsetSampleFrame);
break;
case SynthEvent::kEventType_SustainOff :
group->SustainOff(inOffsetSampleFrame);
break;
case SynthEvent::kEventType_SostenutoOn :
group->SostenutoOn(inOffsetSampleFrame);
break;
case SynthEvent::kEventType_SostenutoOff :
group->SostenutoOff(inOffsetSampleFrame);
break;
case SynthEvent::kEventType_AllNotesOff :
group->AllNotesOff(inOffsetSampleFrame);
mNumActiveNotes = CountActiveNotes();
break;
case SynthEvent::kEventType_AllSoundOff :
group->AllSoundOff(inOffsetSampleFrame);
mNumActiveNotes = CountActiveNotes();
break;
case SynthEvent::kEventType_ResetAllControllers :
group->ResetAllControllers(inOffsetSampleFrame);
break;
}
}
else
{
SynthEvent *event = mEventQueue.WriteItem();
if (!event) return -1; // queue full
event->Set(inEventType, inGroupID, 0, 0, NULL);
mEventQueue.AdvanceWritePtr();
}
return noErr;
}
OSStatus AUInstrumentBase::StartNote( MusicDeviceInstrumentID inInstrument,
MusicDeviceGroupID inGroupID,
NoteInstanceID * outNoteInstanceID,
UInt32 inOffsetSampleFrame,
const MusicDeviceNoteParams &inParams)
{
OSStatus err = noErr;
NoteInstanceID noteID;
if (outNoteInstanceID) {
noteID = NextNoteID();
*outNoteInstanceID = noteID;
} else
noteID = (UInt32)inParams.mPitch;
#if DEBUG_PRINT
printf("AUInstrumentBase::StartNote ch %u, key %u, offset %u\n", inGroupID, (unsigned) inParams.mPitch, inOffsetSampleFrame);
#endif
if (InRenderThread ())
{
err = RealTimeStartNote(
GetElForGroupID(inGroupID),
noteID,
inOffsetSampleFrame,
inParams);
}
else
{
SynthEvent *event = mEventQueue.WriteItem();
if (!event) return -1; // queue full
event->Set(
SynthEvent::kEventType_NoteOn,
inGroupID,
noteID,
inOffsetSampleFrame,
&inParams
);
mEventQueue.AdvanceWritePtr();
}
return err;
}
OSStatus AUInstrumentBase::RealTimeStopNote(
MusicDeviceGroupID inGroupID,
NoteInstanceID inNoteInstanceID,
UInt32 inOffsetSampleFrame)
{
#if DEBUG_PRINT
printf("AUInstrumentBase::RealTimeStopNote ch %d id %d\n", inGroupID, inNoteInstanceID);
#endif
SynthGroupElement *gp = (inGroupID == kMusicNoteEvent_Unused
? GetElForNoteID (inNoteInstanceID)
: GetElForGroupID(inGroupID));
if (gp)
{
gp->NoteOff (inNoteInstanceID, inOffsetSampleFrame);
}
return noErr;
}
ComponentResult AUInstrumentBase::StartNote( MusicDeviceInstrumentID inInstrument,
MusicDeviceGroupID inGroupID,
NoteInstanceID &outNoteInstanceID,
UInt32 inOffsetSampleFrame,
const MusicDeviceNoteParams &inParams)
{
#if DEBUG_PRINT
printf("AUInstrumentBase::StartNote %d\n", inGroupID);
#endif
ComponentResult err = noErr;
Float32 pitch = inParams.mPitch;
outNoteInstanceID = (pitch == floor(pitch)) ? (UInt32)pitch : NextNoteID();
if (InRenderThread ())
{
err = RealTimeStartNote(
GetElForGroupID(inGroupID),
outNoteInstanceID,
inOffsetSampleFrame,
inParams);
}
else
{
SynthEvent *event = mEventQueue.WriteItem();
if (!event) return -1; // queue full
event->Set(
SynthEvent::kEventType_NoteOn,
inGroupID,
outNoteInstanceID,
inOffsetSampleFrame,
&inParams
);
mEventQueue.AdvanceWritePtr();
}
return err;
}