355 lines
12 KiB
C++
355 lines
12 KiB
C++
/*
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File: MusicDeviceBase.cpp
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Abstract: MusicDeviceBase.h
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Version: 1.1
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Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple
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Inc. ("Apple") in consideration of your agreement to the following
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terms, and your use, installation, modification or redistribution of
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this Apple software constitutes acceptance of these terms. If you do
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not agree with these terms, please do not use, install, modify or
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redistribute this Apple software.
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In consideration of your agreement to abide by the following terms, and
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subject to these terms, Apple grants you a personal, non-exclusive
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license, under Apple's copyrights in this original Apple software (the
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"Apple Software"), to use, reproduce, modify and redistribute the Apple
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Software, with or without modifications, in source and/or binary forms;
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provided that if you redistribute the Apple Software in its entirety and
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without modifications, you must retain this notice and the following
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text and disclaimers in all such redistributions of the Apple Software.
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Neither the name, trademarks, service marks or logos of Apple Inc. may
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be used to endorse or promote products derived from the Apple Software
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without specific prior written permission from Apple. Except as
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expressly stated in this notice, no other rights or licenses, express or
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implied, are granted by Apple herein, including but not limited to any
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patent rights that may be infringed by your derivative works or by other
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works in which the Apple Software may be incorporated.
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The Apple Software is provided by Apple on an "AS IS" basis. APPLE
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MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
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THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
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FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
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OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
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IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
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OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
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MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
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AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
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STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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Copyright (C) 2014 Apple Inc. All Rights Reserved.
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*/
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#include "MusicDeviceBase.h"
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// compatibility with older OS SDK releases
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typedef OSStatus
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(*TEMP_MusicDeviceMIDIEventProc)( void * inComponentStorage,
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UInt32 inStatus,
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UInt32 inData1,
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UInt32 inData2,
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UInt32 inOffsetSampleFrame);
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typedef OSStatus
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(*TEMP_MusicDeviceStartNoteProc)( void * inComponentStorage,
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MusicDeviceInstrumentID inInstrument,
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MusicDeviceGroupID inGroupID,
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NoteInstanceID * outNoteInstanceID,
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UInt32 inOffsetSampleFrame,
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const MusicDeviceNoteParams * inParams);
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typedef OSStatus
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(*TEMP_MusicDeviceStopNoteProc)(void * inComponentStorage,
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MusicDeviceGroupID inGroupID,
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NoteInstanceID inNoteInstanceID,
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UInt32 inOffsetSampleFrame);
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#if !CA_USE_AUDIO_PLUGIN_ONLY
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static OSStatus MusicDeviceBaseMIDIEvent(void * inComponentStorage,
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UInt32 inStatus,
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UInt32 inData1,
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UInt32 inData2,
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UInt32 inOffsetSampleFrame);
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static OSStatus MusicDeviceBaseStartNote( void * inComponentStorage,
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MusicDeviceInstrumentID inInstrument,
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MusicDeviceGroupID inGroupID,
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NoteInstanceID * outNoteInstanceID,
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UInt32 inOffsetSampleFrame,
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const MusicDeviceNoteParams * inParams);
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static OSStatus MusicDeviceBaseStopNote(void * inComponentStorage,
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MusicDeviceGroupID inGroupID,
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NoteInstanceID inNoteInstanceID,
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UInt32 inOffsetSampleFrame);
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#endif
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MusicDeviceBase::MusicDeviceBase(AudioComponentInstance inInstance,
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UInt32 numInputs,
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UInt32 numOutputs,
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UInt32 numGroups)
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: AUBase(inInstance, numInputs, numOutputs, numGroups),
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AUMIDIBase(this)
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{
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}
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OSStatus MusicDeviceBase::GetPropertyInfo(AudioUnitPropertyID inID,
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AudioUnitScope inScope,
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AudioUnitElement inElement,
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UInt32 & outDataSize,
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Boolean & outWritable)
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{
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OSStatus result;
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switch (inID)
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{
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#if !TARGET_OS_IPHONE
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case kMusicDeviceProperty_InstrumentCount:
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if (inScope != kAudioUnitScope_Global) return kAudioUnitErr_InvalidScope;
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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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#endif
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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 (inID, inScope, inElement, outDataSize, outWritable);
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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( AudioUnitPropertyID inID,
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AudioUnitScope inScope,
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AudioUnitElement inElement,
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void * outData)
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{
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OSStatus result;
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switch (inID)
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{
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#if !CA_USE_AUDIO_PLUGIN_ONLY
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case kAudioUnitProperty_FastDispatch:
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if (!IsCMgrObject()) return kAudioUnitErr_InvalidProperty;
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if (inElement == kMusicDeviceMIDIEventSelect) {
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*(TEMP_MusicDeviceMIDIEventProc *)outData = MusicDeviceBaseMIDIEvent;
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return noErr;
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}
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else if (inElement == kMusicDeviceStartNoteSelect) {
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*(TEMP_MusicDeviceStartNoteProc *)outData = MusicDeviceBaseStartNote;
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return noErr;
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}
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else if (inElement == kMusicDeviceStopNoteSelect) {
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*(TEMP_MusicDeviceStopNoteProc *)outData = MusicDeviceBaseStopNote;
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return noErr;
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}
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return kAudioUnitErr_InvalidElement;
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#endif
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#if !TARGET_OS_IPHONE
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case kMusicDeviceProperty_InstrumentCount:
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if (inScope != kAudioUnitScope_Global) return kAudioUnitErr_InvalidScope;
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return GetInstrumentCount (*(UInt32*)outData);
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#endif
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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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return result;
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}
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OSStatus MusicDeviceBase::SetProperty( AudioUnitPropertyID inID,
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AudioUnitScope inScope,
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AudioUnitElement inElement,
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const void * inData,
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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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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( UInt8 inChannel,
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UInt8 inNoteNumber,
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UInt8 inVelocity,
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UInt32 inStartFrame)
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{
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MusicDeviceNoteParams params;
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params.argCount = 2;
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params.mPitch = inNoteNumber;
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params.mVelocity = inVelocity;
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return StartNote (kMusicNoteEvent_UseGroupInstrument, inChannel, NULL, inStartFrame, params);
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}
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OSStatus MusicDeviceBase::HandleNoteOff( UInt8 inChannel,
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UInt8 inNoteNumber,
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UInt8 inVelocity,
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UInt32 inStartFrame)
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{
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return StopNote (inChannel, inNoteNumber, inStartFrame);
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}
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OSStatus
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MusicDeviceBase::HandleStartNoteMessage (MusicDeviceInstrumentID inInstrument,
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MusicDeviceGroupID inGroupID,
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NoteInstanceID * outNoteInstanceID,
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UInt32 inOffsetSampleFrame,
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const MusicDeviceNoteParams * inParams)
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{
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if (inParams == NULL || outNoteInstanceID == NULL) return kAudio_ParamError;
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if (!IsInitialized()) return kAudioUnitErr_Uninitialized;
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return StartNote (inInstrument, inGroupID, outNoteInstanceID, inOffsetSampleFrame, *inParams);
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}
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#if TARGET_OS_MAC
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#if __LP64__
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// comp instance, parameters in forward order
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#define PARAM(_typ, _name, _index, _nparams) \
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_typ _name = *(_typ *)¶ms->params[_index + 1];
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#else
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// parameters in reverse order, then comp instance
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#define PARAM(_typ, _name, _index, _nparams) \
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_typ _name = *(_typ *)¶ms->params[_nparams - 1 - _index];
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#endif
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#elif TARGET_OS_WIN32
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// (no comp instance), parameters in forward order
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#define PARAM(_typ, _name, _index, _nparams) \
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_typ _name = *(_typ *)¶ms->params[_index];
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#endif
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#if !CA_USE_AUDIO_PLUGIN_ONLY
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OSStatus MusicDeviceBase::ComponentEntryDispatch( ComponentParameters * params,
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MusicDeviceBase * This)
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{
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if (This == NULL) return kAudio_ParamError;
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OSStatus result;
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switch (params->what) {
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case kMusicDeviceMIDIEventSelect:
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case kMusicDeviceSysExSelect:
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{
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result = AUMIDIBase::ComponentEntryDispatch (params, This);
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}
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break;
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case kMusicDevicePrepareInstrumentSelect:
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{
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PARAM(MusicDeviceInstrumentID, inInstrument, 0, 1);
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result = This->PrepareInstrument(inInstrument);
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}
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break;
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case kMusicDeviceReleaseInstrumentSelect:
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{
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PARAM(MusicDeviceInstrumentID, inInstrument, 0, 1);
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result = This->ReleaseInstrument(inInstrument);
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}
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break;
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case kMusicDeviceStartNoteSelect:
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{
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PARAM(MusicDeviceInstrumentID, pbinInstrument, 0, 5);
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PARAM(MusicDeviceGroupID, pbinGroupID, 1, 5);
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PARAM(NoteInstanceID *, pboutNoteInstanceID, 2, 5);
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PARAM(UInt32, pbinOffsetSampleFrame, 3, 5);
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PARAM(const MusicDeviceNoteParams *, pbinParams, 4, 5);
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result = This->HandleStartNoteMessage(pbinInstrument, pbinGroupID, pboutNoteInstanceID, pbinOffsetSampleFrame, pbinParams);
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}
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break;
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case kMusicDeviceStopNoteSelect:
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{
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PARAM(MusicDeviceGroupID, pbinGroupID, 0, 3);
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PARAM(NoteInstanceID, pbinNoteInstanceID, 1, 3);
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PARAM(UInt32, pbinOffsetSampleFrame, 2, 3);
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result = This->StopNote(pbinGroupID, pbinNoteInstanceID, pbinOffsetSampleFrame);
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}
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break;
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default:
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result = AUBase::ComponentEntryDispatch(params, This);
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break;
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}
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return result;
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}
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#endif
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#if !CA_USE_AUDIO_PLUGIN_ONLY
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// fast dispatch
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static OSStatus MusicDeviceBaseMIDIEvent(void * inComponentStorage,
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UInt32 inStatus,
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UInt32 inData1,
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UInt32 inData2,
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UInt32 inOffsetSampleFrame)
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{
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OSStatus result = noErr;
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try {
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MusicDeviceBase *This = static_cast<MusicDeviceBase *>(inComponentStorage);
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if (This == NULL) return kAudio_ParamError;
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result = This->MIDIEvent(inStatus, inData1, inData2, inOffsetSampleFrame);
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}
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COMPONENT_CATCH
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return result;
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}
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OSStatus MusicDeviceBaseStartNote( void * inComponentStorage,
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MusicDeviceInstrumentID inInstrument,
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MusicDeviceGroupID inGroupID,
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NoteInstanceID * outNoteInstanceID,
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UInt32 inOffsetSampleFrame,
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const MusicDeviceNoteParams * inParams)
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{
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OSStatus result = noErr;
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try {
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if (inParams == NULL || outNoteInstanceID == NULL) return kAudio_ParamError;
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MusicDeviceBase *This = static_cast<MusicDeviceBase *>(inComponentStorage);
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if (This == NULL) return kAudio_ParamError;
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result = This->StartNote(inInstrument, inGroupID, outNoteInstanceID, inOffsetSampleFrame, *inParams);
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}
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COMPONENT_CATCH
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return result;
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}
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OSStatus MusicDeviceBaseStopNote(void * inComponentStorage,
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MusicDeviceGroupID inGroupID,
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NoteInstanceID inNoteInstanceID,
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UInt32 inOffsetSampleFrame)
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{
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OSStatus result = noErr;
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try {
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MusicDeviceBase *This = static_cast<MusicDeviceBase *>(inComponentStorage);
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if (This == NULL) return kAudio_ParamError;
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result = This->StopNote(inGroupID, inNoteInstanceID, inOffsetSampleFrame);
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}
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COMPONENT_CATCH
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return result;
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}
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#endif
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