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/* 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.
*/
#include "CAAUMIDIMapManager.h"
#include <AudioToolbox/AudioUnitUtilities.h>
CAAUMIDIMapManager::CAAUMIDIMapManager()
{
hotMapping = false;
}
static void FillInMap (CAAUMIDIMap &map, AUBase &That)
{
AudioUnitParameterInfo info;
That.GetParameterInfo (map.mScope, map.mParameterID, info);
if (map.IsSubRange()) {
map.mMinValue = map.mSubRangeMin;
map.mMaxValue = map.mSubRangeMax;
} else {
map.mMinValue = info.minValue;
map.mMaxValue = info.maxValue;
}
map.mTransType = CAAUMIDIMap::GetTransformer(info.flags);
}
OSStatus CAAUMIDIMapManager::SortedInsertToParamaterMaps (AUParameterMIDIMapping *maps, UInt32 inNumMaps, AUBase &That)
{
for (unsigned int i = 0; i < inNumMaps; ++i)
{
CAAUMIDIMap map(maps[i]);
FillInMap (map, That);
int idx = FindParameterIndex (maps[i]);
if (idx > -1)
mParameterMaps.erase(mParameterMaps.begin() + idx);
// least disruptive place to put this is at the end
mParameterMaps.push_back(map);
}
std::sort(mParameterMaps.begin(), mParameterMaps.end(), CompareMIDIMap());
return noErr;
}
void CAAUMIDIMapManager::GetHotParameterMap(AUParameterMIDIMapping &outMap )
{
outMap = mHotMap;
}
void CAAUMIDIMapManager::SortedRemoveFromParameterMaps(AUParameterMIDIMapping *maps, UInt32 inNumMaps, bool &outMapDidChange)
{
if (hotMapping) {
hotMapping = false;
}
outMapDidChange = false;
for (unsigned int i = 0; i < inNumMaps; ++i) {
int idx = FindParameterIndex (maps[i]);
if (idx > -1) {
//mParameterMaps[idx].Print();
mParameterMaps.erase(mParameterMaps.begin() + idx);
outMapDidChange = true;
}
}
}
void CAAUMIDIMapManager::ReplaceAllMaps (AUParameterMIDIMapping* inMappings, UInt32 inNumMaps, AUBase &That)
{
mParameterMaps.clear();
for (unsigned int i = 0; i < inNumMaps; ++i) {
CAAUMIDIMap mapping(inMappings[i]);
FillInMap (mapping, That);
mParameterMaps.push_back (mapping);
}
std::sort(mParameterMaps.begin(),mParameterMaps.end(), CompareMIDIMap());
}
bool CAAUMIDIMapManager::HandleHotMapping(UInt8 inStatus,
UInt8 inChannel,
UInt8 inData1,
AUBase &That)
{ //used to set the hot map info
if (inStatus == 0xf0) return false;
if (!hotMapping) return false;
hotMapping = false;
mHotMap.mStatus = inStatus | inChannel;
mHotMap.mData1 = inData1;
SortedInsertToParamaterMaps (&mHotMap, 1, That);
return true;
}
#if DEBUG
void CAAUMIDIMapManager::Print()
{
for ( ParameterMaps::iterator i = mParameterMaps.begin(); i < mParameterMaps.end(); ++i) {
CAAUMIDIMap* listmap = &(*i);
listmap->Print();
}
}
#endif // DEBUG
void CAAUMIDIMapManager::GetMaps(AUParameterMIDIMapping* maps)
{
int i = 0;
for ( ParameterMaps::iterator iter = mParameterMaps.begin(); iter < mParameterMaps.end(); ++iter, ++i) {
AUParameterMIDIMapping &listmap = (*iter);
maps[i] = listmap;
}
}
int CAAUMIDIMapManager::FindParameterIndex (AUParameterMIDIMapping &inMap)
{
//used to get back hot mapping and one at a time maps, for ui
int idx = 0;
for ( ParameterMaps::iterator i = mParameterMaps.begin(); i < mParameterMaps.end(); ++i) {
CAAUMIDIMap & listmap = (*i);
if ( (listmap.mParameterID == inMap.mParameterID) &&
(listmap.mScope == inMap.mScope) &&
(listmap.mElement == inMap.mElement) )
{
return idx;
}
idx++;
}
return -1;
}
bool CAAUMIDIMapManager::FindParameterMapEventMatch( UInt8 inStatus,
UInt8 inChannel,
UInt8 inData1,
UInt8 inData2,
UInt32 inBufferOffset,
AUBase& inAUBase)
{
bool ret_value = false;
if (inStatus == 0x90 && !inData2)
inStatus = 0x80 | inChannel;
//used to test for midi matches once map is made
CAAUMIDIMap tempMap;
tempMap.mStatus = inStatus | inChannel;
tempMap.mData1 = inData1;
CompareMIDIMap compareObj;
AudioUnitEvent event;
event.mEventType = kAudioUnitEvent_ParameterValueChange;
event.mArgument.mParameter.mAudioUnit = inAUBase.GetComponentInstance();
ParameterMaps::iterator lower_iter =
std::lower_bound(mParameterMaps.begin(), mParameterMaps.end(), tempMap, compareObj);
while (lower_iter < mParameterMaps.end())
{
CAAUMIDIMap & map = (*lower_iter);
if (compareObj.Finish(map, tempMap))
break;
Float32 value;
if (map.MIDI_Matches(inChannel, inData1, inData2, value))
{
inAUBase.SetParameter ( map.mParameterID, map.mScope, map.mElement,
map.ParamValueFromMIDILinear(value), inBufferOffset);
event.mArgument.mParameter.mParameterID = map.mParameterID;
event.mArgument.mParameter.mScope = map.mScope;
event.mArgument.mParameter.mElement = map.mElement;
AUEventListenerNotify(NULL, NULL, &event);
ret_value = true;
}
++lower_iter;
}
return ret_value;
}
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