Jamoma API  0.6.0.a19
CAAUMIDIMapManager.cpp
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41 #include "CAAUMIDIMapManager.h"
42 #include <AudioToolbox/AudioUnitUtilities.h>
43 
44 CAAUMIDIMapManager::CAAUMIDIMapManager()
45 {
46  hotMapping = false;
47 }
48 
49 static void FillInMap (CAAUMIDIMap &map, AUBase &That)
50 {
51  AudioUnitParameterInfo info;
52  That.GetParameterInfo (map.mScope, map.mParameterID, info);
53 
54  if (map.IsSubRange()) {
55  map.mMinValue = map.mSubRangeMin;
56  map.mMaxValue = map.mSubRangeMax;
57  } else {
58  map.mMinValue = info.minValue;
59  map.mMaxValue = info.maxValue;
60  }
61 
62  map.mTransType = CAAUMIDIMap::GetTransformer(info.flags);
63 }
64 
65 OSStatus CAAUMIDIMapManager::SortedInsertToParamaterMaps (AUParameterMIDIMapping *maps, UInt32 inNumMaps, AUBase &That)
66 {
67  for (unsigned int i = 0; i < inNumMaps; ++i)
68  {
69  CAAUMIDIMap map(maps[i]);
70 
71  FillInMap (map, That);
72 
73  int idx = FindParameterIndex (maps[i]);
74  if (idx > -1)
75  mParameterMaps.erase(mParameterMaps.begin() + idx);
76 
77  // least disruptive place to put this is at the end
78  mParameterMaps.push_back(map);
79  }
80 
81  std::sort(mParameterMaps.begin(), mParameterMaps.end(), CompareMIDIMap());
82 
83  return noErr;
84 }
85 
86 void CAAUMIDIMapManager::GetHotParameterMap(AUParameterMIDIMapping &outMap )
87 {
88  outMap = mHotMap;
89 }
90 
91 void CAAUMIDIMapManager::SortedRemoveFromParameterMaps(AUParameterMIDIMapping *maps, UInt32 inNumMaps, bool &outMapDidChange)
92 {
93  if (hotMapping) {
94  hotMapping = false;
95  }
96 
97  outMapDidChange = false;
98  for (unsigned int i = 0; i < inNumMaps; ++i) {
99  int idx = FindParameterIndex (maps[i]);
100  if (idx > -1) {
101  //mParameterMaps[idx].Print();
102  mParameterMaps.erase(mParameterMaps.begin() + idx);
103  outMapDidChange = true;
104  }
105  }
106 }
107 
108 void CAAUMIDIMapManager::ReplaceAllMaps (AUParameterMIDIMapping* inMappings, UInt32 inNumMaps, AUBase &That)
109 {
110  mParameterMaps.clear();
111 
112  for (unsigned int i = 0; i < inNumMaps; ++i) {
113  CAAUMIDIMap mapping(inMappings[i]);
114 
115  FillInMap (mapping, That);
116  mParameterMaps.push_back (mapping);
117  }
118 
119  std::sort(mParameterMaps.begin(),mParameterMaps.end(), CompareMIDIMap());
120 }
121 
122 bool CAAUMIDIMapManager::HandleHotMapping(UInt8 inStatus,
123  UInt8 inChannel,
124  UInt8 inData1,
125  AUBase &That)
126 { //used to set the hot map info
127 
128  if (inStatus == 0xf0) return false;
129 
130  if (!hotMapping) return false;
131  hotMapping = false;
132 
133  mHotMap.mStatus = inStatus | inChannel;
134  mHotMap.mData1 = inData1;
135 
136  SortedInsertToParamaterMaps (&mHotMap, 1, That);
137  return true;
138 }
139 
140 #if DEBUG
141 
142 void CAAUMIDIMapManager::Print()
143 {
144  for ( ParameterMaps::iterator i = mParameterMaps.begin(); i < mParameterMaps.end(); ++i) {
145  CAAUMIDIMap* listmap = &(*i);
146  listmap->Print();
147  }
148 }
149 
150 #endif // DEBUG
151 
152 void CAAUMIDIMapManager::GetMaps(AUParameterMIDIMapping* maps)
153 {
154  int i = 0;
155  for ( ParameterMaps::iterator iter = mParameterMaps.begin(); iter < mParameterMaps.end(); ++iter, ++i) {
156  AUParameterMIDIMapping &listmap = (*iter);
157  maps[i] = listmap;
158  }
159 }
160 
161 int CAAUMIDIMapManager::FindParameterIndex (AUParameterMIDIMapping &inMap)
162 {
163  //used to get back hot mapping and one at a time maps, for ui
164 
165  int idx = 0;
166  for ( ParameterMaps::iterator i = mParameterMaps.begin(); i < mParameterMaps.end(); ++i) {
167  CAAUMIDIMap & listmap = (*i);
168  if ( (listmap.mParameterID == inMap.mParameterID) &&
169  (listmap.mScope == inMap.mScope) &&
170  (listmap.mElement == inMap.mElement) )
171  {
172  return idx;
173  }
174  idx++;
175  }
176  return -1;
177 }
178 
179 bool CAAUMIDIMapManager::FindParameterMapEventMatch( UInt8 inStatus,
180  UInt8 inChannel,
181  UInt8 inData1,
182  UInt8 inData2,
183  UInt32 inBufferOffset,
184  AUBase& inAUBase)
185 {
186  bool ret_value = false;
187 
188  if (inStatus == 0x90 && !inData2)
189  inStatus = 0x80 | inChannel;
190 
191  //used to test for midi matches once map is made
192  CAAUMIDIMap tempMap;
193  tempMap.mStatus = inStatus | inChannel;
194  tempMap.mData1 = inData1;
195 
196  CompareMIDIMap compareObj;
197 
198  AudioUnitEvent event;
199  event.mEventType = kAudioUnitEvent_ParameterValueChange;
200  event.mArgument.mParameter.mAudioUnit = inAUBase.GetComponentInstance();
201 
202  ParameterMaps::iterator lower_iter =
203  std::lower_bound(mParameterMaps.begin(), mParameterMaps.end(), tempMap, compareObj);
204 
205  while (lower_iter < mParameterMaps.end())
206  {
207  CAAUMIDIMap & map = (*lower_iter);
208  if (compareObj.Finish(map, tempMap))
209  break;
210 
211  Float32 value;
212  if (map.MIDI_Matches(inChannel, inData1, inData2, value))
213  {
214  inAUBase.SetParameter ( map.mParameterID, map.mScope, map.mElement,
215  map.ParamValueFromMIDILinear(value), inBufferOffset);
216 
217  event.mArgument.mParameter.mParameterID = map.mParameterID;
218  event.mArgument.mParameter.mScope = map.mScope;
219  event.mArgument.mParameter.mElement = map.mElement;
220 
221  AUEventListenerNotify(NULL, NULL, &event);
222  ret_value = true;
223  }
224  ++lower_iter;
225  }
226  return ret_value;
227 }