/[svn]/linuxsampler/trunk/src/Sampler.cpp
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revision 221 by schoenebeck, Fri Aug 20 17:25:19 2004 UTC revision 412 by schoenebeck, Sat Feb 26 22:44:51 2005 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 Christian Schoenebeck                              *
7   *                                                                         *   *                                                                         *
8   *   This program is free software; you can redistribute it and/or modify  *   *   This program 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 25 
25    
26  #include "Sampler.h"  #include "Sampler.h"
27    
28    #include "engines/EngineChannelFactory.h"
29  #include "drivers/audio/AudioOutputDeviceFactory.h"  #include "drivers/audio/AudioOutputDeviceFactory.h"
30  #include "drivers/midi/MidiInputDeviceFactory.h"  #include "drivers/midi/MidiInputDeviceFactory.h"
31  #include "engines/gig/Engine.h"  #include "network/lscpserver.h"
32    
33  namespace LinuxSampler {  namespace LinuxSampler {
34    
# Line 35  namespace LinuxSampler { Line 37  namespace LinuxSampler {
37    
38      SamplerChannel::SamplerChannel(Sampler* pS) {      SamplerChannel::SamplerChannel(Sampler* pS) {
39          pSampler           = pS;          pSampler           = pS;
40          pEngine            = NULL;          pEngineChannel     = NULL;
41          pMidiInputDevice   = NULL;          pMidiInputDevice   = NULL;
42          pAudioOutputDevice = NULL;          pAudioOutputDevice = NULL;
43          midiPort           = 0;          midiPort           = 0;
# Line 44  namespace LinuxSampler { Line 46  namespace LinuxSampler {
46      }      }
47    
48      SamplerChannel::~SamplerChannel() {      SamplerChannel::~SamplerChannel() {
49          if (pEngine) {          if (pEngineChannel) {
50              MidiInputPort* pMidiInputPort = GetMidiInputDevicePort(this->midiPort);              MidiInputPort* pMidiInputPort = GetMidiInputDevicePort(this->midiPort);
51              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngine);              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel);
52              if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(pEngine);              if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice();
53              delete pEngine;              delete pEngineChannel;
54          }          }
55      }      }
56    
57      void SamplerChannel::LoadEngine(Engine::type_t EngineType) {      void SamplerChannel::SetEngineType(String EngineType) throw (LinuxSamplerException) {
58          dmsg(2,("SamplerChannel: Loading engine..."));          dmsg(2,("SamplerChannel: Assigning engine type..."));
59    
60          // create new engine          // create new engine channel
61          Engine* pNewEngine = NULL;          EngineChannel* pNewEngineChannel = EngineChannelFactory::Create(EngineType);
62          switch (EngineType) {          if (!pNewEngineChannel) throw LinuxSamplerException("Unknown engine type");
             case Engine::type_gig:  
                 pNewEngine = new gig::Engine;  
                 break;  
             default:  
                 throw LinuxSamplerException("Unknown engine type");  
         }  
63    
64          // dereference midi input port.          // dereference midi input port.
65          MidiInputPort* pMidiInputPort = GetMidiInputDevicePort(this->midiPort);          MidiInputPort* pMidiInputPort = GetMidiInputDevicePort(this->midiPort);
66          // disconnect old engine          // disconnect old engine
67          if (pEngine) {          if (pEngineChannel) {
68              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngine);              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel);
69              if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(pEngine);              if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice();
70              delete pEngine;              delete pEngineChannel;
71          }          }
72    
73          // connect new engine          // connect new engine channel
74          pEngine = pNewEngine;          pEngineChannel = pNewEngineChannel;
75          if (pMidiInputPort) pMidiInputPort->Connect(pNewEngine, this->midiChannel);          if (pMidiInputPort) pMidiInputPort->Connect(pNewEngineChannel, this->midiChannel);
76          if (pAudioOutputDevice) pAudioOutputDevice->Connect(pNewEngine);          if (pAudioOutputDevice) {
77                pNewEngineChannel->Connect(pAudioOutputDevice);
78                pAudioOutputDevice->Connect(pNewEngineChannel->GetEngine());
79            }
80          dmsg(2,("OK\n"));          dmsg(2,("OK\n"));
81      }      }
82    
83      void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) {      void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) {
84          // disconnect old device          // disconnect old device
85          if (pAudioOutputDevice && pEngine) pAudioOutputDevice->Disconnect(pEngine);          if (pAudioOutputDevice && pEngineChannel) pEngineChannel->DisconnectAudioOutputDevice();
86          // connect new device          // connect new device
87          pAudioOutputDevice = pDevice;          pAudioOutputDevice = pDevice;
88          if (pEngine) pAudioOutputDevice->Connect(pEngine);          if (pEngineChannel) {
89                pEngineChannel->Connect(pAudioOutputDevice);
90                pAudioOutputDevice->Connect(pEngineChannel->GetEngine());
91            }
92      }      }
93    
94      void SamplerChannel::SetMidiInputDevice(MidiInputDevice* pDevice) {      void SamplerChannel::SetMidiInputDevice(MidiInputDevice* pDevice) {
# Line 105  namespace LinuxSampler { Line 107  namespace LinuxSampler {
107          // dereference old midi input port.          // dereference old midi input port.
108          MidiInputPort* pMidiInputPort = GetMidiInputDevicePort(this->midiPort);          MidiInputPort* pMidiInputPort = GetMidiInputDevicePort(this->midiPort);
109          // disconnect old device port          // disconnect old device port
110          if (pMidiInputPort && pEngine) pMidiInputPort->Disconnect(pEngine);          if (pMidiInputPort && pEngineChannel) pMidiInputPort->Disconnect(pEngineChannel);
111          // new device, port and channel          // new device, port and channel
112          pMidiInputDevice = pDevice;          pMidiInputDevice = pDevice;
113          this->midiPort = iMidiPort;          this->midiPort = iMidiPort;
114          this->midiChannel = MidiChannel;          this->midiChannel = MidiChannel;
115          // connect new device port          // connect new device port
116          pMidiInputPort = GetMidiInputDevicePort(this->midiPort);          pMidiInputPort = GetMidiInputDevicePort(this->midiPort);
117          if (pMidiInputPort && pEngine) pMidiInputPort->Connect(pEngine, MidiChannel);          if (pMidiInputPort && pEngineChannel) pMidiInputPort->Connect(pEngineChannel, MidiChannel);
118          // Ooops.          // Ooops.
119          if (pMidiInputPort == NULL)          if (pMidiInputPort == NULL)
120              throw LinuxSamplerException("There is no MIDI input port with index " + ToString(iMidiPort) + ".");              throw LinuxSamplerException("There is no MIDI input port with index " + ToString(iMidiPort) + ".");
121      }      }
122    
123      Engine* SamplerChannel::GetEngine() {      EngineChannel* SamplerChannel::GetEngineChannel() {
124          return pEngine;          return pEngineChannel;
125      }      }
126    
127      MidiInputPort::midi_chan_t SamplerChannel::GetMidiInputChannel() {      MidiInputPort::midi_chan_t SamplerChannel::GetMidiInputChannel() {
# Line 181  namespace LinuxSampler { Line 183  namespace LinuxSampler {
183          if (!mSamplerChannels.size()) {          if (!mSamplerChannels.size()) {
184              SamplerChannel* pChannel = new SamplerChannel(this);              SamplerChannel* pChannel = new SamplerChannel(this);
185              mSamplerChannels[0] = pChannel;              mSamplerChannels[0] = pChannel;
186                LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channels, 1));
187              return pChannel;              return pChannel;
188          }          }
189    
# Line 195  namespace LinuxSampler { Line 198  namespace LinuxSampler {
198                  // we found an unused index, so insert the new channel there                  // we found an unused index, so insert the new channel there
199                  SamplerChannel* pChannel = new SamplerChannel(this);                  SamplerChannel* pChannel = new SamplerChannel(this);
200                  mSamplerChannels[i] = pChannel;                  mSamplerChannels[i] = pChannel;
201                    LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channels, i));
202                  return pChannel;                  return pChannel;
203              }              }
204              throw LinuxSamplerException("Internal error: could not find unoccupied sampler channel index.");              throw LinuxSamplerException("Internal error: could not find unoccupied sampler channel index.");
# Line 203  namespace LinuxSampler { Line 207  namespace LinuxSampler {
207          // we have not reached the index limit so we just add the channel past the highest index          // we have not reached the index limit so we just add the channel past the highest index
208          SamplerChannel* pChannel = new SamplerChannel(this);          SamplerChannel* pChannel = new SamplerChannel(this);
209          mSamplerChannels[lastIndex + 1] = pChannel;          mSamplerChannels[lastIndex + 1] = pChannel;
210            LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channels, lastIndex + 1));
211          return pChannel;          return pChannel;
212      }      }
213    
# Line 220  namespace LinuxSampler { Line 225  namespace LinuxSampler {
225              if (iterChan->second == pSamplerChannel) {              if (iterChan->second == pSamplerChannel) {
226                  mSamplerChannels.erase(iterChan);                  mSamplerChannels.erase(iterChan);
227                  delete pSamplerChannel;                  delete pSamplerChannel;
228                    LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channels, mSamplerChannels.size()));
229                  return;                  return;
230              }              }
231          }          }
# Line 324  namespace LinuxSampler { Line 330  namespace LinuxSampler {
330      void Sampler::Reset() {      void Sampler::Reset() {
331          // delete sampler channels          // delete sampler channels
332          try {          try {
333              SamplerChannelMap::iterator iter = mSamplerChannels.begin();              while (true) {
334              for (; iter != mSamplerChannels.end(); iter++) {                      SamplerChannelMap::iterator iter = mSamplerChannels.begin();
335                  RemoveSamplerChannel(iter->second);                      if (iter == mSamplerChannels.end()) break;
336                        RemoveSamplerChannel(iter->second);
337              }              }
338          }          }
339          catch(...) {          catch(...) {
# Line 336  namespace LinuxSampler { Line 343  namespace LinuxSampler {
343    
344          // delete midi input devices          // delete midi input devices
345          try {          try {
346              MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();              while (true) {
347              for (; iter != mMidiInputDevices.end(); iter++) {                      MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();
348                  DestroyMidiInputDevice(iter->second);                      if (iter == mMidiInputDevices.end()) break;
349                        DestroyMidiInputDevice(iter->second);
350              }              }
351          }          }
352          catch(...) {          catch(...) {
# Line 348  namespace LinuxSampler { Line 356  namespace LinuxSampler {
356    
357          // delete audio output devices          // delete audio output devices
358          try {          try {
359              AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();              while (true) {
360              for (; iter != mAudioOutputDevices.end(); iter++) {                      AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();
361                  DestroyAudioOutputDevice(iter->second);                      if (iter == mAudioOutputDevices.end()) break;
362                        DestroyAudioOutputDevice(iter->second);
363              }              }
364          }          }
365          catch(...) {          catch(...) {
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