/[svn]/linuxsampler/trunk/src/engines/FxSend.cpp
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Diff of /linuxsampler/trunk/src/engines/FxSend.cpp

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revision 1016 by schoenebeck, Wed Dec 27 16:17:08 2006 UTC revision 1017 by schoenebeck, Tue Jan 9 23:51:32 2007 UTC
# Line 3  Line 3 
3   *   LinuxSampler - modular, streaming capable sampler                     *   *   LinuxSampler - modular, streaming capable sampler                     *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
6   *   Copyright (C) 2005, 2006 Christian Schoenebeck                        *   *   Copyright (C) 2005 - 2007 Christian Schoenebeck                       *
7   *                                                                         *   *                                                                         *
8   *   This library is free software; you can redistribute it and/or modify  *   *   This library is free software; you can redistribute it and/or modify  *
9   *   it under the terms of the GNU General Public License as published by  *   *   it under the terms of the GNU General Public License as published by  *
# Line 24  Line 24 
24  #include "FxSend.h"  #include "FxSend.h"
25    
26  #include "../drivers/audio/AudioOutputDevice.h"  #include "../drivers/audio/AudioOutputDevice.h"
27    #include "../common/RTMath.h"
28    
29  #include <map>  #include <map>
30    
31  namespace LinuxSampler {  namespace LinuxSampler {
32    
33      /*      FxSend::FxSend(EngineChannel* pEngineChannel, uint8_t MidiCtrl, String Name) throw (Exception) {
        FIXME: we create fx send indeces globally for now, although we might  
        want them to be an individual sequence per sampler channel, beside that  
        we don't handle the cases yet where __indexer overflows back to 0  
     */  
     static uint __indexer = 0;  
   
     FxSend::FxSend(EngineChannel* pEngineChannel, uint8_t MidiCtrl, String Name) {  
34          this->pEngineChannel = pEngineChannel;          this->pEngineChannel = pEngineChannel;
35          AudioOutputDevice* pDevice = pEngineChannel->GetAudioOutputDevice();          AudioOutputDevice* pDevice = pEngineChannel->GetAudioOutputDevice();
36          const int iChanOffset = (pDevice) ? pDevice->ChannelCount() - pEngineChannel->Channels() : 0;          const int iChanOffset = (pDevice) ? pDevice->ChannelCount() - pEngineChannel->Channels() : 0;
# Line 46  namespace LinuxSampler { Line 40  namespace LinuxSampler {
40          }          }
41          MidiFxSendController = MidiCtrl;          MidiFxSendController = MidiCtrl;
42          sName = Name;          sName = Name;
43          iId = __indexer;  
44          __indexer++;          // create an EngineChannel unique ID for this FxSend instance
45            if (!pEngineChannel->GetFxSendCount()) iId = 0;
46            else {
47                // get the highest existing map ID
48                uint highestIndex = 0;
49                for (uint i = 0; i < pEngineChannel->GetFxSendCount(); i++)
50                    highestIndex = RTMath::Max(highestIndex, pEngineChannel->GetFxSend(i)->Id());
51                // check if we reached the index limit
52                if (highestIndex + 1 < highestIndex) {
53                    // search for an unoccupied map ID starting from 0
54                    for (uint i = 0; i < highestIndex; i++) {
55                        bool bOccupied = false;
56                        for (uint j = 0; j < pEngineChannel->GetFxSendCount(); j++) {
57                            if (pEngineChannel->GetFxSend(j)->Id() == i) {
58                                bOccupied = true;
59                                break;
60                            }
61                        }
62                        if (!bOccupied) {
63                            iId = i;
64                            goto __done;
65                        }
66                    }
67                    throw Exception("Internal error: could not find unoccupied FxSend ID.");
68                }
69                iId = highestIndex + 1;
70            }
71            __done:
72    
73          fLevel = 0.3f; // default FX send level          fLevel = 0.3f; // default FX send level
74      }      }
75    
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