Jamoma API  0.6.0.a19
AUMIDIEffectBase.cpp
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41 /*=============================================================================
42  AUMIDIEffectBase.cpp
43 
44 =============================================================================*/
45 
46 #include "AUMIDIEffectBase.h"
47 
48 // compatibility with older OS SDK releases
49 typedef ComponentResult
50 (*TEMP_MusicDeviceMIDIEventProc)( void * inComponentStorage,
51  UInt32 inStatus,
52  UInt32 inData1,
53  UInt32 inData2,
54  UInt32 inOffsetSampleFrame);
55 
56 static ComponentResult AUMIDIEffectBaseMIDIEvent(void * inComponentStorage,
57  UInt32 inStatus,
58  UInt32 inData1,
59  UInt32 inData2,
60  UInt32 inOffsetSampleFrame);
61 
62 AUMIDIEffectBase::AUMIDIEffectBase( ComponentInstance inInstance,
63  bool inProcessesInPlace )
64  : AUEffectBase(inInstance, inProcessesInPlace),
65  AUMIDIBase(this)
66 {
67 }
68 
69 ComponentResult AUMIDIEffectBase::GetPropertyInfo(AudioUnitPropertyID inID,
70  AudioUnitScope inScope,
71  AudioUnitElement inElement,
72  UInt32 & outDataSize,
73  Boolean & outWritable)
74 {
75  ComponentResult result;
76 
77  result = AUEffectBase::GetPropertyInfo (inID, inScope, inElement, outDataSize, outWritable);
78 
79  if (result == kAudioUnitErr_InvalidProperty)
80  result = AUMIDIBase::DelegateGetPropertyInfo (inID, inScope, inElement, outDataSize, outWritable);
81 
82  return result;
83 }
84 
85 ComponentResult AUMIDIEffectBase::GetProperty( AudioUnitPropertyID inID,
86  AudioUnitScope inScope,
87  AudioUnitElement inElement,
88  void * outData)
89 {
90  ComponentResult result;
91 
92  if (inID == kAudioUnitProperty_FastDispatch) {
93  if (inElement == kMusicDeviceMIDIEventSelect) {
94  *(TEMP_MusicDeviceMIDIEventProc *)outData = AUMIDIEffectBaseMIDIEvent;
95  return noErr;
96  }
97  return kAudioUnitErr_InvalidElement;
98  }
99 
100  result = AUEffectBase::GetProperty (inID, inScope, inElement, outData);
101 
102  if (result == kAudioUnitErr_InvalidProperty)
103  result = AUMIDIBase::DelegateGetProperty (inID, inScope, inElement, outData);
104 
105  return result;
106 }
107 
108 ComponentResult AUMIDIEffectBase::SetProperty( AudioUnitPropertyID inID,
109  AudioUnitScope inScope,
110  AudioUnitElement inElement,
111  const void * inData,
112  UInt32 inDataSize)
113 {
114 
115  ComponentResult result = AUEffectBase::SetProperty (inID, inScope, inElement, inData, inDataSize);
116 
117  if (result == kAudioUnitErr_InvalidProperty)
118  result = AUMIDIBase::DelegateSetProperty (inID, inScope, inElement, inData, inDataSize);
119 
120  return result;
121 }
122 
123 
124 ComponentResult AUMIDIEffectBase::ComponentEntryDispatch(ComponentParameters * params,
125  AUMIDIEffectBase * This)
126 {
127  if (This == NULL) return paramErr;
128 
129  ComponentResult result;
130 
131  switch (params->what) {
132  case kMusicDeviceMIDIEventSelect:
133  case kMusicDeviceSysExSelect:
134  result = AUMIDIBase::ComponentEntryDispatch (params, This);
135  break;
136  default:
137  result = AUEffectBase::ComponentEntryDispatch(params, This);
138  break;
139  }
140 
141  return result;
142 }
143 
144 // fast dispatch
145 static ComponentResult AUMIDIEffectBaseMIDIEvent(void * inComponentStorage,
146  UInt32 inStatus,
147  UInt32 inData1,
148  UInt32 inData2,
149  UInt32 inOffsetSampleFrame)
150 {
151  ComponentResult result = noErr;
152  try {
153  AUMIDIEffectBase *This = static_cast<AUMIDIEffectBase *>(inComponentStorage);
154  if (This == NULL) return paramErr;
155  result = This->MIDIEvent(inStatus, inData1, inData2, inOffsetSampleFrame);
156  }
157  COMPONENT_CATCH
158  return result;
159 }