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Diffstat (limited to 'distrho/src/CoreAudio106/AudioUnits/AUPublic/AUInstrumentBase/AUInstrumentBase.h')
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diff --git a/distrho/src/CoreAudio106/AudioUnits/AUPublic/AUInstrumentBase/AUInstrumentBase.h b/distrho/src/CoreAudio106/AudioUnits/AUPublic/AUInstrumentBase/AUInstrumentBase.h new file mode 100755 index 00000000..8f779cbf --- /dev/null +++ b/distrho/src/CoreAudio106/AudioUnits/AUPublic/AUInstrumentBase/AUInstrumentBase.h @@ -0,0 +1,246 @@ +/* Copyright © 2007 Apple Inc. All Rights Reserved. + + Disclaimer: IMPORTANT: This Apple software is supplied to you by + Apple Inc. ("Apple") in consideration of your agreement to the + following terms, and your use, installation, modification or + redistribution of this Apple software constitutes acceptance of these + terms. If you do not agree with these terms, please do not use, + install, modify or redistribute this Apple software. + + In consideration of your agreement to abide by the following terms, and + subject to these terms, Apple grants you a personal, non-exclusive + license, under Apple's copyrights in this original Apple software (the + "Apple Software"), to use, reproduce, modify and redistribute the Apple + Software, with or without modifications, in source and/or binary forms; + provided that if you redistribute the Apple Software in its entirety and + without modifications, you must retain this notice and the following + text and disclaimers in all such redistributions of the Apple Software. + Neither the name, trademarks, service marks or logos of Apple Inc. + may be used to endorse or promote products derived from the Apple + Software without specific prior written permission from Apple. Except + as expressly stated in this notice, no other rights or licenses, express + or implied, are granted by Apple herein, including but not limited to + any patent rights that may be infringed by your derivative works or by + other works in which the Apple Software may be incorporated. + + The Apple Software is provided by Apple on an "AS IS" basis. APPLE + MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION + THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS + FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND + OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS. + + IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL + OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, + MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED + AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE), + STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. +*/ +#ifndef __AUInstrumentBase__ +#define __AUInstrumentBase__ + +#include <vector> +#include <stdexcept> +#include <AudioUnit/AudioUnit.h> +#include <CoreAudio/CoreAudio.h> +#include "MusicDeviceBase.h" +#include "LockFreeFIFO.h" +#include "SynthEvent.h" +#include "SynthNote.h" +#include "SynthElement.h" + +//////////////////////////////////////////////////////////////////////////////////////////////////////////// + +typedef LockFreeFIFOWithFree<SynthEvent> SynthEventQueue; + +class AUInstrumentBase : public MusicDeviceBase +{ +public: + AUInstrumentBase( + ComponentInstance inInstance, + UInt32 numInputs, + UInt32 numOutputs, + UInt32 numGroups = 32, + UInt32 numParts = 0); + virtual ~AUInstrumentBase(); + + virtual OSStatus Initialize(); + + virtual void Cleanup(); + + virtual AUElement* CreateElement( AudioUnitScope scope, + AudioUnitElement element); + + virtual OSStatus Reset( AudioUnitScope inScope, + AudioUnitElement inElement); + + virtual bool ValidFormat( AudioUnitScope inScope, + AudioUnitElement inElement, + const CAStreamBasicDescription & inNewFormat); + + virtual bool StreamFormatWritable( AudioUnitScope scope, + AudioUnitElement element); + + virtual OSStatus Render( AudioUnitRenderActionFlags & ioActionFlags, + const AudioTimeStamp & inTimeStamp, + UInt32 inNumberFrames); + + virtual OSStatus StartNote( MusicDeviceInstrumentID inInstrument, + MusicDeviceGroupID inGroupID, + NoteInstanceID * outNoteInstanceID, + UInt32 inOffsetSampleFrame, + const MusicDeviceNoteParams &inParams); + + virtual OSStatus StopNote( MusicDeviceGroupID inGroupID, + NoteInstanceID inNoteInstanceID, + UInt32 inOffsetSampleFrame); + + virtual OSStatus RealTimeStartNote( SynthGroupElement *inGroup, + NoteInstanceID inNoteInstanceID, + UInt32 inOffsetSampleFrame, + const MusicDeviceNoteParams &inParams); + + virtual OSStatus RealTimeStopNote( MusicDeviceGroupID inGroupID, + NoteInstanceID inNoteInstanceID, + UInt32 inOffsetSampleFrame); + + virtual OSStatus HandleControlChange( UInt8 inChannel, + UInt8 inController, + UInt8 inValue, + UInt32 inStartFrame); + + virtual OSStatus HandlePitchWheel( UInt8 inChannel, + UInt8 inPitch1, + UInt8 inPitch2, + UInt32 inStartFrame); + + virtual OSStatus HandleChannelPressure( UInt8 inChannel, + UInt8 inValue, + UInt32 inStartFrame); + + virtual OSStatus HandleProgramChange( UInt8 inChannel, + UInt8 inValue); + + virtual OSStatus HandlePolyPressure( UInt8 inChannel, + UInt8 inKey, + UInt8 inValue, + UInt32 inStartFrame); + + virtual OSStatus HandleResetAllControllers( UInt8 inChannel); + + virtual OSStatus HandleAllNotesOff( UInt8 inChannel); + + virtual OSStatus HandleAllSoundOff( UInt8 inChannel); + + SynthNote* GetNote(UInt32 inIndex) + { + if (!mNotes) throw std::runtime_error("no notes"); + return (SynthNote*)((char*)mNotes + inIndex * mNoteSize); + } + + SynthNote* GetAFreeNote(UInt32 inFrame); + void AddFreeNote(SynthNote* inNote); + + MidiControls* GetControls( MusicDeviceGroupID inChannel) + { + SynthGroupElement *group = GetElForGroupID(inChannel); + return &(group->mMidiControls); + } + + +protected: + + UInt32 NextNoteID() { return IncrementAtomic(&mNoteIDCounter); } + + + // call SetNotes in your Initialize() method to give the base class your note structures and to set the maximum + // number of active notes. inNoteData should be an array of size inMaxActiveNotes. + void SetNotes(UInt32 inNumNotes, UInt32 inMaxActiveNotes, SynthNote* inNotes, UInt32 inNoteSize); + + void PerformEvents( const AudioTimeStamp & inTimeStamp); + OSStatus SendPedalEvent(MusicDeviceGroupID inGroupID, UInt32 inEventType, UInt32 inOffsetSampleFrame); + virtual SynthNote* VoiceStealing(UInt32 inFrame, bool inKillIt); + UInt32 MaxActiveNotes() const { return mMaxActiveNotes; } + UInt32 NumActiveNotes() const { return mNumActiveNotes; } + void IncNumActiveNotes() { mNumActiveNotes ++; } + void DecNumActiveNotes() { mNumActiveNotes --; } + UInt32 CountActiveNotes(); + // this call throws if there's no assigned element for the group ID + SynthGroupElement * GetElForGroupID (MusicDeviceGroupID inGroupID); + SynthGroupElement * GetElForNoteID (NoteInstanceID inNoteID); + + SInt64 mAbsoluteSampleFrame; + + +private: + + SInt32 mNoteIDCounter; + + SynthEventQueue mEventQueue; + + UInt32 mNumNotes; + UInt32 mNumActiveNotes; + UInt32 mMaxActiveNotes; + SynthNote* mNotes; + SynthNoteList mFreeNotes; + UInt32 mNoteSize; +}; + +//////////////////////////////////////////////////////////////////////////////////////////////////////////// + +class AUMonotimbralInstrumentBase : public AUInstrumentBase +{ +public: + AUMonotimbralInstrumentBase( + ComponentInstance inInstance, + UInt32 numInputs, + UInt32 numOutputs, + UInt32 numGroups = 32, + UInt32 numParts = 0); + + virtual OSStatus RealTimeStartNote( SynthGroupElement *inGroup, + NoteInstanceID inNoteInstanceID, + UInt32 inOffsetSampleFrame, + const MusicDeviceNoteParams &inParams); +}; + +//////////////////////////////////////////////////////////////////////////////////////////////////////////// + +// this is a work in progress! The mono-timbral one is finished though! +class AUMultitimbralInstrumentBase : public AUInstrumentBase +{ +public: + AUMultitimbralInstrumentBase( + ComponentInstance inInstance, + UInt32 numInputs, + UInt32 numOutputs, + UInt32 numGroups, + UInt32 numParts); + + virtual OSStatus GetPropertyInfo( AudioUnitPropertyID inID, + AudioUnitScope inScope, + AudioUnitElement inElement, + UInt32 & outDataSize, + Boolean & outWritable); + + virtual OSStatus GetProperty( AudioUnitPropertyID inID, + AudioUnitScope inScope, + AudioUnitElement inElement, + void * outData); + + virtual OSStatus SetProperty( AudioUnitPropertyID inID, + AudioUnitScope inScope, + AudioUnitElement inElement, + const void * inData, + UInt32 inDataSize); + +private: + +}; + +//////////////////////////////////////////////////////////////////////////////////////////////////////////// + +#endif + |