mirror of
https://github.com/juce-framework/JUCE.git
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117 lines
3.4 KiB
C++
117 lines
3.4 KiB
C++
/*!
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@file AudioUnitSDK/MusicDeviceBase.cpp
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@copyright © 2000-2021 Apple Inc. All rights reserved.
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*/
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#include <AudioUnitSDK/MusicDeviceBase.h>
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namespace ausdk {
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MusicDeviceBase::MusicDeviceBase(
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AudioComponentInstance inInstance, UInt32 numInputs, UInt32 numOutputs, UInt32 numGroups)
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: AUBase(inInstance, numInputs, numOutputs, numGroups), AUMIDIBase(*static_cast<AUBase*>(this))
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{
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}
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OSStatus MusicDeviceBase::GetPropertyInfo(AudioUnitPropertyID inID, AudioUnitScope inScope,
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AudioUnitElement inElement, UInt32& outDataSize, bool& outWritable)
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{
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OSStatus result = noErr;
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switch (inID) { // NOLINT if/else
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case kMusicDeviceProperty_InstrumentCount:
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if (inScope != kAudioUnitScope_Global) {
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return kAudioUnitErr_InvalidScope;
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}
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outDataSize = sizeof(UInt32);
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outWritable = false;
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result = noErr;
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break;
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default:
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result = AUBase::GetPropertyInfo(inID, inScope, inElement, outDataSize, outWritable);
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if (result == kAudioUnitErr_InvalidProperty) {
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result = AUMIDIBase::DelegateGetPropertyInfo(
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inID, inScope, inElement, outDataSize, outWritable);
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}
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break;
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}
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return result;
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}
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OSStatus MusicDeviceBase::GetProperty(
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AudioUnitPropertyID inID, AudioUnitScope inScope, AudioUnitElement inElement, void* outData)
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{
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OSStatus result = noErr;
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switch (inID) { // NOLINT if/else
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case kMusicDeviceProperty_InstrumentCount:
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if (inScope != kAudioUnitScope_Global) {
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return kAudioUnitErr_InvalidScope;
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}
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return GetInstrumentCount(*static_cast<UInt32*>(outData));
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default:
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result = AUBase::GetProperty(inID, inScope, inElement, outData);
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if (result == kAudioUnitErr_InvalidProperty) {
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result = AUMIDIBase::DelegateGetProperty(inID, inScope, inElement, outData);
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}
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}
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return result;
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}
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OSStatus MusicDeviceBase::SetProperty(AudioUnitPropertyID inID, AudioUnitScope inScope,
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AudioUnitElement inElement, const void* inData, UInt32 inDataSize)
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{
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OSStatus result = AUBase::SetProperty(inID, inScope, inElement, inData, inDataSize);
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if (result == kAudioUnitErr_InvalidProperty) {
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result = AUMIDIBase::DelegateSetProperty(inID, inScope, inElement, inData, inDataSize);
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}
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return result;
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}
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// For a MusicDevice that doesn't support separate instruments (ie. is mono-timbral)
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// then this call should return an instrument count of zero and noErr
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OSStatus MusicDeviceBase::GetInstrumentCount(UInt32& outInstCount) const
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{
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outInstCount = 0;
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return noErr;
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}
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OSStatus MusicDeviceBase::HandleNoteOn(
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UInt8 inChannel, UInt8 inNoteNumber, UInt8 inVelocity, UInt32 inStartFrame)
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{
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const MusicDeviceNoteParams params{ .argCount = 2,
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.mPitch = static_cast<Float32>(inNoteNumber),
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.mVelocity = static_cast<Float32>(inVelocity) };
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return StartNote(kMusicNoteEvent_UseGroupInstrument, inChannel, nullptr, inStartFrame, params);
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}
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OSStatus MusicDeviceBase::HandleNoteOff(
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UInt8 inChannel, UInt8 inNoteNumber, UInt8 /*inVelocity*/, UInt32 inStartFrame)
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{
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return StopNote(inChannel, inNoteNumber, inStartFrame);
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}
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OSStatus MusicDeviceBase::HandleStartNoteMessage(MusicDeviceInstrumentID inInstrument,
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MusicDeviceGroupID inGroupID, NoteInstanceID* outNoteInstanceID, UInt32 inOffsetSampleFrame,
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const MusicDeviceNoteParams* inParams)
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{
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if (inParams == nullptr || outNoteInstanceID == nullptr) {
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return kAudio_ParamError;
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}
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if (!IsInitialized()) {
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return kAudioUnitErr_Uninitialized;
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}
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return StartNote(inInstrument, inGroupID, outNoteInstanceID, inOffsetSampleFrame, *inParams);
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}
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} // namespace ausdk
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