/[svn]/linuxsampler/trunk/src/Sampler.cpp
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Diff of /linuxsampler/trunk/src/Sampler.cpp

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revision 411 by schoenebeck, Sat Feb 26 02:01:14 2005 UTC revision 960 by iliev, Thu Nov 30 10:39:12 2006 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                              *   *   Copyright (C) 2005, 2006 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 25  Line 25 
25    
26  #include "Sampler.h"  #include "Sampler.h"
27    
28    #include "engines/EngineFactory.h"
29  #include "engines/EngineChannelFactory.h"  #include "engines/EngineChannelFactory.h"
30  #include "drivers/audio/AudioOutputDeviceFactory.h"  #include "drivers/audio/AudioOutputDeviceFactory.h"
31  #include "drivers/midi/MidiInputDeviceFactory.h"  #include "drivers/midi/MidiInputDeviceFactory.h"
# Line 38  namespace LinuxSampler { Line 39  namespace LinuxSampler {
39      SamplerChannel::SamplerChannel(Sampler* pS) {      SamplerChannel::SamplerChannel(Sampler* pS) {
40          pSampler           = pS;          pSampler           = pS;
41          pEngineChannel     = NULL;          pEngineChannel     = NULL;
         pMidiInputDevice   = NULL;  
42          pAudioOutputDevice = NULL;          pAudioOutputDevice = NULL;
43          midiPort           = 0;          pMidiInputDevice   = NULL;
44          midiChannel        = MidiInputPort::midi_chan_all;          iMidiPort          = 0;
45            midiChannel        = midi_chan_all;
46          iIndex             = -1;          iIndex             = -1;
47      }      }
48    
49      SamplerChannel::~SamplerChannel() {      SamplerChannel::~SamplerChannel() {
50          if (pEngineChannel) {          if (pEngineChannel) {
51              MidiInputPort* pMidiInputPort = GetMidiInputDevicePort(this->midiPort);              Engine* engine = pEngineChannel->GetEngine();
52                if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(engine);
53    
54                MidiInputPort* pMidiInputPort = (pEngineChannel) ? pEngineChannel->GetMidiInputPort() : __GetMidiInputDevicePort(GetMidiInputChannel());
55              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel);              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel);
56              if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(pEngineChannel);              if (pEngineChannel) {
57              delete pEngineChannel;                  if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice();
58                    EngineChannelFactory::Destroy(pEngineChannel);
59    
60                    // reconnect engine if it still exists
61                    const std::set<Engine*>& engines = EngineFactory::EngineInstances();
62                    if (engines.find(engine) != engines.end()) pAudioOutputDevice->Connect(engine);
63                }
64          }          }
65      }      }
66    
67      void SamplerChannel::SetEngineType(String EngineType) throw (LinuxSamplerException) {      void SamplerChannel::SetEngineType(String EngineType) throw (Exception) {
68          dmsg(2,("SamplerChannel: Assigning engine type..."));          dmsg(2,("SamplerChannel: Assigning engine type..."));
69    
70          // create new engine channel          // create new engine channel
71          EngineChannel* pNewEngineChannel = EngineChannelFactory::Create(EngineType);          EngineChannel* pNewEngineChannel = EngineChannelFactory::Create(EngineType);
72          if (!pNewEngineChannel) throw LinuxSamplerException("Unknown engine type");          if (!pNewEngineChannel) throw Exception("Unknown engine type");
73    
74            //FIXME: hack to allow fast retrieval of engine channel's sampler channel index
75            pNewEngineChannel->iSamplerChannelIndex = Index();
76    
77          // dereference midi input port.          // dereference midi input port.
78          MidiInputPort* pMidiInputPort = GetMidiInputDevicePort(this->midiPort);          MidiInputPort* pMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());
79          // disconnect old engine          // disconnect old engine channel
80          if (pEngineChannel) {          if (pEngineChannel) {
81                Engine* engine = pEngineChannel->GetEngine();
82                if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(engine);
83    
84              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel);              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel);
85              if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(pEngineChannel);              if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice();
86              delete pEngineChannel;              EngineChannelFactory::Destroy(pEngineChannel);
87    
88                // reconnect engine if it still exists
89                const std::set<Engine*>& engines = EngineFactory::EngineInstances();
90                if (engines.find(engine) != engines.end()) pAudioOutputDevice->Connect(engine);
91          }          }
92    
93          // connect new engine channel          // connect new engine channel
94            if (pAudioOutputDevice) {
95                pNewEngineChannel->Connect(pAudioOutputDevice);
96                pAudioOutputDevice->Connect(pNewEngineChannel->GetEngine());
97            }
98            if (pMidiInputPort) pMidiInputPort->Connect(pNewEngineChannel, GetMidiInputChannel());
99          pEngineChannel = pNewEngineChannel;          pEngineChannel = pNewEngineChannel;
100          if (pMidiInputPort) pMidiInputPort->Connect(pNewEngineChannel, this->midiChannel);  
101          if (pAudioOutputDevice) pAudioOutputDevice->Connect(pNewEngineChannel);          // from now on get MIDI device and port from EngineChannel object
102            this->pMidiInputDevice = NULL;
103            this->iMidiPort        = 0;
104    
105            pEngineChannel->StatusChanged(true);
106    
107          dmsg(2,("OK\n"));          dmsg(2,("OK\n"));
108      }      }
109    
110      void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) {      void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) {
111            if(pAudioOutputDevice == pDevice) return;
112    
113          // disconnect old device          // disconnect old device
114          if (pAudioOutputDevice && pEngineChannel) pAudioOutputDevice->Disconnect(pEngineChannel);          if (pAudioOutputDevice && pEngineChannel) {
115                Engine* engine = pEngineChannel->GetEngine();
116                pAudioOutputDevice->Disconnect(engine);
117    
118                pEngineChannel->DisconnectAudioOutputDevice();
119    
120                // reconnect engine if it still exists
121                const std::set<Engine*>& engines = EngineFactory::EngineInstances();
122                if (engines.find(engine) != engines.end()) pAudioOutputDevice->Connect(engine);
123            }
124    
125          // connect new device          // connect new device
126          pAudioOutputDevice = pDevice;          pAudioOutputDevice = pDevice;
127          if (pEngineChannel) pAudioOutputDevice->Connect(pEngineChannel);          if (pEngineChannel) {
128                pEngineChannel->Connect(pAudioOutputDevice);
129                pAudioOutputDevice->Connect(pEngineChannel->GetEngine());
130            }
131      }      }
132    
133      void SamplerChannel::SetMidiInputDevice(MidiInputDevice* pDevice) {      void SamplerChannel::SetMidiInputDevice(MidiInputDevice* pDevice) {
134         SetMidiInput(pDevice, this->midiPort, this->midiChannel);         SetMidiInput(pDevice, 0, GetMidiInputChannel());
135      }      }
136    
137      void SamplerChannel::SetMidiInputPort(int MidiPort) {      void SamplerChannel::SetMidiInputPort(int MidiPort) {
138         SetMidiInput(pMidiInputDevice, MidiPort, this->midiChannel);         SetMidiInput(GetMidiInputDevice(), MidiPort, GetMidiInputChannel());
139      }      }
140    
141      void SamplerChannel::SetMidiInputChannel(MidiInputPort::midi_chan_t MidiChannel) {      void SamplerChannel::SetMidiInputChannel(midi_chan_t MidiChannel) {
142         SetMidiInput(pMidiInputDevice, this->midiPort, MidiChannel);         SetMidiInput(GetMidiInputDevice(), GetMidiInputPort(), MidiChannel);
143      }      }
144    
145      void SamplerChannel::SetMidiInput(MidiInputDevice* pDevice, int iMidiPort, MidiInputPort::midi_chan_t MidiChannel) {      void SamplerChannel::SetMidiInput(MidiInputDevice* pDevice, int iMidiPort, midi_chan_t MidiChannel) {
146          // dereference old midi input port.          if (!pDevice) throw Exception("No MIDI input device assigned.");
147          MidiInputPort* pMidiInputPort = GetMidiInputDevicePort(this->midiPort);  
148            // get old and new midi input port
149            MidiInputPort* pOldMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());
150            MidiInputPort* pNewMidiInputPort = pDevice->GetPort(iMidiPort);
151    
152          // disconnect old device port          // disconnect old device port
153          if (pMidiInputPort && pEngineChannel) pMidiInputPort->Disconnect(pEngineChannel);          if (pOldMidiInputPort && pEngineChannel) pOldMidiInputPort->Disconnect(pEngineChannel);
154          // new device, port and channel          // remember new device, port and channel if not engine channel yet created
155          pMidiInputDevice = pDevice;          if (!pEngineChannel) {
156          this->midiPort = iMidiPort;              this->pMidiInputDevice = pDevice;
157          this->midiChannel = MidiChannel;              this->iMidiPort        = iMidiPort;
158                this->midiChannel      = MidiChannel;
159            }
160    
161          // connect new device port          // connect new device port
162          pMidiInputPort = GetMidiInputDevicePort(this->midiPort);          if (pNewMidiInputPort && pEngineChannel) pNewMidiInputPort->Connect(pEngineChannel, MidiChannel);
         if (pMidiInputPort && pEngineChannel) pMidiInputPort->Connect(pEngineChannel, MidiChannel);  
163          // Ooops.          // Ooops.
164          if (pMidiInputPort == NULL)          if (pNewMidiInputPort == NULL)
165              throw LinuxSamplerException("There is no MIDI input port with index " + ToString(iMidiPort) + ".");              throw Exception("There is no MIDI input port with index " + ToString(iMidiPort) + ".");
166      }      }
167    
168      EngineChannel* SamplerChannel::GetEngineChannel() {      EngineChannel* SamplerChannel::GetEngineChannel() {
169          return pEngineChannel;          return pEngineChannel;
170      }      }
171    
172      MidiInputPort::midi_chan_t SamplerChannel::GetMidiInputChannel() {      midi_chan_t SamplerChannel::GetMidiInputChannel() {
173            if (pEngineChannel) this->midiChannel = pEngineChannel->MidiChannel();
174          return this->midiChannel;          return this->midiChannel;
175      }      }
176    
177      int SamplerChannel::GetMidiInputPort() {      int SamplerChannel::GetMidiInputPort() {
178          MidiInputPort* pMidiInputPort = GetMidiInputDevicePort(this->midiPort);          MidiInputPort* pMidiInputPort = (pEngineChannel) ? pEngineChannel->GetMidiInputPort() : NULL;
179          return (pMidiInputPort ? (int) pMidiInputPort->GetPortNumber() : -1);          if (pMidiInputPort) this->iMidiPort = (int) pMidiInputPort->GetPortNumber();
180            return iMidiPort;
181      }      }
182    
183      AudioOutputDevice* SamplerChannel::GetAudioOutputDevice() {      AudioOutputDevice* SamplerChannel::GetAudioOutputDevice() {
# Line 132  namespace LinuxSampler { Line 185  namespace LinuxSampler {
185      }      }
186    
187      MidiInputDevice* SamplerChannel::GetMidiInputDevice() {      MidiInputDevice* SamplerChannel::GetMidiInputDevice() {
188            if (pEngineChannel)
189                pMidiInputDevice = (pEngineChannel->GetMidiInputPort()) ? pEngineChannel->GetMidiInputPort()->GetDevice() : NULL;
190          return pMidiInputDevice;          return pMidiInputDevice;
191      }      }
192    
# Line 146  namespace LinuxSampler { Line 201  namespace LinuxSampler {
201              }              }
202          }          }
203    
204          throw LinuxSamplerException("Internal error: SamplerChannel index not found");          throw Exception("Internal error: SamplerChannel index not found");
205      }      }
206    
207      MidiInputPort* SamplerChannel::GetMidiInputDevicePort(int iMidiPort) {      MidiInputPort* SamplerChannel::__GetMidiInputDevicePort(int iMidiPort) {
208          MidiInputPort* pMidiInputPort = NULL;          MidiInputPort* pMidiInputPort = NULL;
209            MidiInputDevice* pMidiInputDevice = GetMidiInputDevice();
210          if (pMidiInputDevice)          if (pMidiInputDevice)
211              pMidiInputPort = pMidiInputDevice->GetPort(iMidiPort);              pMidiInputPort = pMidiInputDevice->GetPort(iMidiPort);
212          return pMidiInputPort;          return pMidiInputPort;
# Line 177  namespace LinuxSampler { Line 233  namespace LinuxSampler {
233          if (!mSamplerChannels.size()) {          if (!mSamplerChannels.size()) {
234              SamplerChannel* pChannel = new SamplerChannel(this);              SamplerChannel* pChannel = new SamplerChannel(this);
235              mSamplerChannels[0] = pChannel;              mSamplerChannels[0] = pChannel;
236              LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channels, 1));              LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, 1));
237              return pChannel;              return pChannel;
238          }          }
239    
# Line 192  namespace LinuxSampler { Line 248  namespace LinuxSampler {
248                  // we found an unused index, so insert the new channel there                  // we found an unused index, so insert the new channel there
249                  SamplerChannel* pChannel = new SamplerChannel(this);                  SamplerChannel* pChannel = new SamplerChannel(this);
250                  mSamplerChannels[i] = pChannel;                  mSamplerChannels[i] = pChannel;
251                  LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channels, i));                  LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, i));
252                  return pChannel;                  return pChannel;
253              }              }
254              throw LinuxSamplerException("Internal error: could not find unoccupied sampler channel index.");              throw Exception("Internal error: could not find unoccupied sampler channel index.");
255          }          }
256    
257          // 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
258          SamplerChannel* pChannel = new SamplerChannel(this);          SamplerChannel* pChannel = new SamplerChannel(this);
259          mSamplerChannels[lastIndex + 1] = pChannel;          mSamplerChannels[lastIndex + 1] = pChannel;
260          LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channels, lastIndex + 1));          LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, lastIndex + 1));
261          return pChannel;          return pChannel;
262      }      }
263    
# Line 219  namespace LinuxSampler { Line 275  namespace LinuxSampler {
275              if (iterChan->second == pSamplerChannel) {              if (iterChan->second == pSamplerChannel) {
276                  mSamplerChannels.erase(iterChan);                  mSamplerChannels.erase(iterChan);
277                  delete pSamplerChannel;                  delete pSamplerChannel;
278                  LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channels, mSamplerChannels.size()));                  LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, mSamplerChannels.size()));
279                  return;                  return;
280              }              }
281          }          }
# Line 235  namespace LinuxSampler { Line 291  namespace LinuxSampler {
291          return AudioOutputDeviceFactory::AvailableDrivers();          return AudioOutputDeviceFactory::AvailableDrivers();
292      }      }
293    
294      AudioOutputDevice* Sampler::CreateAudioOutputDevice(String AudioDriver, std::map<String,String> Parameters) throw (LinuxSamplerException) {      std::vector<String> Sampler::AvailableMidiInputDrivers() {
295            return MidiInputDeviceFactory::AvailableDrivers();
296        }
297    
298        std::vector<String> Sampler::AvailableEngineTypes() {
299            return EngineFactory::AvailableEngineTypes();
300        }
301    
302        AudioOutputDevice* Sampler::CreateAudioOutputDevice(String AudioDriver, std::map<String,String> Parameters) throw (Exception) {
303          // create new device          // create new device
304          AudioOutputDevice* pDevice = AudioOutputDeviceFactory::Create(AudioDriver, Parameters);          AudioOutputDevice* pDevice = AudioOutputDeviceFactory::Create(AudioDriver, Parameters);
305    
# Line 266  namespace LinuxSampler { Line 330  namespace LinuxSampler {
330          return mMidiInputDevices;          return mMidiInputDevices;
331      }      }
332    
333      void Sampler::DestroyAudioOutputDevice(AudioOutputDevice* pDevice) throw (LinuxSamplerException) {      void Sampler::DestroyAudioOutputDevice(AudioOutputDevice* pDevice) throw (Exception) {
334          AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();          AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();
335          for (; iter != mAudioOutputDevices.end(); iter++) {          for (; iter != mAudioOutputDevices.end(); iter++) {
336              if (iter->second == pDevice) {              if (iter->second == pDevice) {
337                  // check if there are still sampler engines connected to this device                  // check if there are still sampler engines connected to this device
338                  for (uint i = 0; i < SamplerChannels(); i++)                  for (uint i = 0; i < SamplerChannels(); i++)
339                      if (GetSamplerChannel(i)->GetAudioOutputDevice() == pDevice) throw LinuxSamplerException("Sampler channel " + ToString(i) + " is still connected to the audio output device.");                      if (GetSamplerChannel(i)->GetAudioOutputDevice() == pDevice) throw Exception("Sampler channel " + ToString(i) + " is still connected to the audio output device.");
340    
341                  // disable device                  // disable device
342                  pDevice->Stop();                  pDevice->Stop();
# Line 282  namespace LinuxSampler { Line 346  namespace LinuxSampler {
346    
347                  // destroy and free device from memory                  // destroy and free device from memory
348                  delete pDevice;                  delete pDevice;
349    
350                    break;
351              }              }
352          }          }
353      }      }
354    
355      void Sampler::DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (LinuxSamplerException) {      void Sampler::DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (Exception) {
356          MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();          MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();
357          for (; iter != mMidiInputDevices.end(); iter++) {          for (; iter != mMidiInputDevices.end(); iter++) {
358              if (iter->second == pDevice) {              if (iter->second == pDevice) {
359                  // check if there are still sampler engines connected to this device                  // check if there are still sampler engines connected to this device
360                  for (uint i = 0; i < SamplerChannels(); i++)                  for (uint i = 0; i < SamplerChannels(); i++)
361                      if (GetSamplerChannel(i)->GetMidiInputDevice() == pDevice) throw LinuxSamplerException("Sampler channel " + ToString(i) + " is still connected to the midi input device.");                      if (GetSamplerChannel(i)->GetMidiInputDevice() == pDevice) throw Exception("Sampler channel " + ToString(i) + " is still connected to the midi input device.");
362    
363                  // disable device                  // disable device
364                  pDevice->StopListen();                  pDevice->StopListen();
# Line 302  namespace LinuxSampler { Line 368  namespace LinuxSampler {
368    
369                  // destroy and free device from memory                  // destroy and free device from memory
370                  delete pDevice;                  delete pDevice;
371    
372                    break;
373              }              }
374          }          }
375      }      }
376    
377      MidiInputDevice* Sampler::CreateMidiInputDevice(String MidiDriver, std::map<String,String> Parameters) throw (LinuxSamplerException) {      MidiInputDevice* Sampler::CreateMidiInputDevice(String MidiDriver, std::map<String,String> Parameters) throw (Exception) {
378          // create new device          // create new device
379          MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters);          MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters, this);
380    
381          // add new device to the midi device list          // add new device to the midi device list
382          for (uint i = 0; ; i++) { // seek for a free place starting from the beginning          for (uint i = 0; ; i++) { // seek for a free place starting from the beginning
# Line 321  namespace LinuxSampler { Line 389  namespace LinuxSampler {
389          return pDevice;          return pDevice;
390      }      }
391    
392        int Sampler::GetVoiceCount() {
393            int count = 0;
394            std::set<Engine*>::iterator it = EngineFactory::EngineInstances().begin();
395    
396            for(; it != EngineFactory::EngineInstances().end(); it++) {
397                count += (*it)->VoiceCount();
398            }
399    
400            return count;
401        }
402    
403      void Sampler::Reset() {      void Sampler::Reset() {
404          // delete sampler channels          // delete sampler channels
405          try {          try {
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