libs/appleutility/CoreAudio/AudioUnits/AUPublic/OtherBases/AUMIDIEffectBase.cpp

   1 /*
   2      File: AUMIDIEffectBase.cpp
   3  Abstract: AUMIDIEffectBase.h
   4   Version: 1.1
   5
   6  Disclaimer: IMPORTANT:  This Apple software is supplied to you by Apple
   7  Inc. ("Apple") in consideration of your agreement to the following
   8  terms, and your use, installation, modification or redistribution of
   9  this Apple software constitutes acceptance of these terms.  If you do
  10  not agree with these terms, please do not use, install, modify or
  11  redistribute this Apple software.
  12
  13  In consideration of your agreement to abide by the following terms, and
  14  subject to these terms, Apple grants you a personal, non-exclusive
  15  license, under Apple's copyrights in this original Apple software (the
  16  "Apple Software"), to use, reproduce, modify and redistribute the Apple
  17  Software, with or without modifications, in source and/or binary forms;
  18  provided that if you redistribute the Apple Software in its entirety and
  19  without modifications, you must retain this notice and the following
  20  text and disclaimers in all such redistributions of the Apple Software.
  21  Neither the name, trademarks, service marks or logos of Apple Inc. may
  22  be used to endorse or promote products derived from the Apple Software
  23  without specific prior written permission from Apple.  Except as
  24  expressly stated in this notice, no other rights or licenses, express or
  25  implied, are granted by Apple herein, including but not limited to any
  26  patent rights that may be infringed by your derivative works or by other
  27  works in which the Apple Software may be incorporated.
  28
  29  The Apple Software is provided by Apple on an "AS IS" basis.  APPLE
  30  MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
  31  THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
  32  FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
  33  OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
  34
  35  IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
  36  OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  37  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  38  INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
  39  MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
  40  AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
  41  STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
  42  POSSIBILITY OF SUCH DAMAGE.
  43
  44  Copyright (C) 2014 Apple Inc. All Rights Reserved.
  45
  46 */
  47 #include "AUMIDIEffectBase.h"
  48
  49 // compatibility with older OS SDK releases
  50 typedef OSStatus
  51 (*TEMP_MusicDeviceMIDIEventProc)(       void *                          inComponentStorage,
  52                                 UInt32                                  inStatus,
  53                                 UInt32                                  inData1,
  54                                 UInt32                                  inData2,
  55                                 UInt32                                  inOffsetSampleFrame);
  56
  57 static OSStatus         AUMIDIEffectBaseMIDIEvent(void *                                inComponentStorage,
  58                                                 UInt32                                  inStatus,
  59                                                 UInt32                                  inData1,
  60                                                 UInt32                                  inData2,
  61                                                 UInt32                                  inOffsetSampleFrame);
  62
  63 AUMIDIEffectBase::AUMIDIEffectBase(             AudioComponentInstance                          inInstance,
  64                                                 bool                                            inProcessesInPlace )
  65         : AUEffectBase(inInstance, inProcessesInPlace),
  66           AUMIDIBase(this)
  67 {
  68 }
  69
  70 OSStatus                        AUMIDIEffectBase::GetPropertyInfo(AudioUnitPropertyID                   inID,
  71                                                         AudioUnitScope                          inScope,
  72                                                         AudioUnitElement                        inElement,
  73                                                         UInt32 &                                outDataSize,
  74                                                         Boolean &                               outWritable)
  75 {
  76         OSStatus result;
  77
  78         result = AUEffectBase::GetPropertyInfo (inID, inScope, inElement, outDataSize, outWritable);
  79
  80         if (result == kAudioUnitErr_InvalidProperty)
  81                 result = AUMIDIBase::DelegateGetPropertyInfo (inID, inScope, inElement, outDataSize, outWritable);
  82
  83         return result;
  84 }
  85
  86 OSStatus                        AUMIDIEffectBase::GetProperty(  AudioUnitPropertyID             inID,
  87                                                                                                         AudioUnitScope                  inScope,
  88                                                                                                         AudioUnitElement                inElement,
  89                                                                                                         void *                                  outData)
  90 {
  91         OSStatus result;
  92
  93 #if !CA_USE_AUDIO_PLUGIN_ONLY
  94         if (inID == kAudioUnitProperty_FastDispatch) {
  95                 if (inElement == kMusicDeviceMIDIEventSelect) {
  96                         *(TEMP_MusicDeviceMIDIEventProc *)outData = AUMIDIEffectBaseMIDIEvent;
  97                         return noErr;
  98                 }
  99                 return kAudioUnitErr_InvalidElement;
 100         }
 101 #endif
 102
 103         result = AUEffectBase::GetProperty (inID, inScope, inElement, outData);
 104
 105         if (result == kAudioUnitErr_InvalidProperty)
 106                 result = AUMIDIBase::DelegateGetProperty (inID, inScope, inElement, outData);
 107
 108         return result;
 109 }
 110
 111 OSStatus                        AUMIDIEffectBase::SetProperty(  AudioUnitPropertyID                     inID,
 112                                                         AudioUnitScope                          inScope,
 113                                                         AudioUnitElement                        inElement,
 114                                                         const void *                            inData,
 115                                                         UInt32                                  inDataSize)
 116 {
 117
 118         OSStatus result = AUEffectBase::SetProperty (inID, inScope, inElement, inData, inDataSize);
 119
 120         if (result == kAudioUnitErr_InvalidProperty)
 121                 result = AUMIDIBase::DelegateSetProperty (inID, inScope, inElement, inData, inDataSize);
 122
 123         return result;
 124 }
 125
 126
 127 #if !TARGET_OS_IPHONE
 128 OSStatus                        AUMIDIEffectBase::ComponentEntryDispatch(ComponentParameters *                  params,
 129                                                                 AUMIDIEffectBase *                      This)
 130 {
 131         if (This == NULL) return paramErr;
 132
 133         OSStatus result;
 134
 135         switch (params->what) {
 136         case kMusicDeviceMIDIEventSelect:
 137         case kMusicDeviceSysExSelect:
 138                 result = AUMIDIBase::ComponentEntryDispatch (params, This);
 139                 break;
 140         default:
 141                 result = AUEffectBase::ComponentEntryDispatch(params, This);
 142                 break;
 143         }
 144
 145         return result;
 146 }
 147 #endif
 148
 149 // fast dispatch
 150 static OSStatus         AUMIDIEffectBaseMIDIEvent(void *                                inComponentStorage,
 151                                                 UInt32                                  inStatus,
 152                                                 UInt32                                  inData1,
 153                                                 UInt32                                  inData2,
 154                                                 UInt32                                  inOffsetSampleFrame)
 155 {
 156         OSStatus result = noErr;
 157         try {
 158                 AUMIDIEffectBase *This = static_cast<AUMIDIEffectBase *>(inComponentStorage);
 159                 if (This == NULL) return paramErr;
 160                 result = This->AUMIDIBase::MIDIEvent(inStatus, inData1, inData2, inOffsetSampleFrame);
 161         }
 162         COMPONENT_CATCH
 163         return result;
 164 }