/[svn]/linuxsampler/trunk/src/Sampler.cpp
ViewVC logotype

Diff of /linuxsampler/trunk/src/Sampler.cpp

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 175 by senkov, Tue Jul 6 04:41:23 2004 UTC revision 840 by persson, Sun Feb 26 13:00:08 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                              *
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 "audiodriver/AudioOutputDeviceFactory.h"  #include "engines/EngineFactory.h"
29  #include "mididriver/MidiInputDeviceFactory.h"  #include "engines/EngineChannelFactory.h"
30  #include "engines/gig/Engine.h"  #include "drivers/audio/AudioOutputDeviceFactory.h"
31    #include "drivers/midi/MidiInputDeviceFactory.h"
32    #include "network/lscpserver.h"
33    
34  namespace LinuxSampler {  namespace LinuxSampler {
35    
# Line 35  namespace LinuxSampler { Line 38  namespace LinuxSampler {
38    
39      SamplerChannel::SamplerChannel(Sampler* pS) {      SamplerChannel::SamplerChannel(Sampler* pS) {
40          pSampler           = pS;          pSampler           = pS;
41          pEngine            = NULL;          pEngineChannel     = NULL;
         pMidiInputDevice   = NULL;  
42          pAudioOutputDevice = NULL;          pAudioOutputDevice = NULL;
43          midiPort           = 0;          pMidiInputDevice   = NULL;
44          midiChannel        = MidiInputDevice::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 (pEngine) {          if (pEngineChannel) {
51              MidiInputDevice::MidiInputPort *pMidiInputPort = GetMidiInputDevicePort(this->midiPort);              Engine* engine = pEngineChannel->GetEngine();
52              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngine);              if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(engine);
53              if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(pEngine);  
54              delete pEngine;              MidiInputPort* pMidiInputPort = (pEngineChannel) ? pEngineChannel->GetMidiInputPort() : __GetMidiInputDevicePort(GetMidiInputChannel());
55                if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel);
56                if (pEngineChannel) {
57                    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::LoadEngine(Engine::type_t EngineType) {      void SamplerChannel::SetEngineType(String EngineType) throw (LinuxSamplerException) {
68          dmsg(2,("SamplerChannel: Loading engine..."));          dmsg(2,("SamplerChannel: Assigning engine type..."));
69    
70          // create new engine          // create new engine channel
71          Engine* pNewEngine = NULL;          EngineChannel* pNewEngineChannel = EngineChannelFactory::Create(EngineType);
72          switch (EngineType) {          if (!pNewEngineChannel) throw LinuxSamplerException("Unknown engine type");
73              case Engine::type_gig:  
74                  pNewEngine = new gig::Engine;          //FIXME: hack to allow fast retrieval of engine channel's sampler channel index
75                  break;          pNewEngineChannel->iSamplerChannelIndex = Index();
             default:  
                 throw LinuxSamplerException("Unknown engine type");  
         }  
76    
77          // dereference midi input port.          // dereference midi input port.
78          MidiInputDevice::MidiInputPort *pMidiInputPort = GetMidiInputDevicePort(this->midiPort);          MidiInputPort* pMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());
79          // disconnect old engine          // disconnect old engine channel
80          if (pEngine) {          if (pEngineChannel) {
81              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngine);              Engine* engine = pEngineChannel->GetEngine();
82              if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(pEngine);              if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(engine);
83              delete pEngine;  
84          }              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel);
85                if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice();
86                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
94            if (pMidiInputPort) pMidiInputPort->Connect(pNewEngineChannel, GetMidiInputChannel());
95            if (pAudioOutputDevice) {
96                pNewEngineChannel->Connect(pAudioOutputDevice);
97                pAudioOutputDevice->Connect(pNewEngineChannel->GetEngine());
98            }
99            pEngineChannel = pNewEngineChannel;
100    
101            // 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    
         // connect new engine  
         pEngine = pNewEngine;  
         if (pMidiInputPort) pMidiInputPort->Connect(pNewEngine, this->midiChannel);  
         if (pAudioOutputDevice) pAudioOutputDevice->Connect(pNewEngine);  
107          dmsg(2,("OK\n"));          dmsg(2,("OK\n"));
108      }      }
109    
110      void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) {      void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) {
111          // disconnect old device          // disconnect old device
112          if (pAudioOutputDevice && pEngine) pAudioOutputDevice->Disconnect(pEngine);          if (pAudioOutputDevice && pEngineChannel) {
113                Engine* engine = pEngineChannel->GetEngine();
114                pAudioOutputDevice->Disconnect(engine);
115    
116                pEngineChannel->DisconnectAudioOutputDevice();
117    
118                // reconnect engine if it still exists
119                const std::set<Engine*>& engines = EngineFactory::EngineInstances();
120                if (engines.find(engine) != engines.end()) pAudioOutputDevice->Connect(engine);
121            }
122    
123          // connect new device          // connect new device
124          pAudioOutputDevice = pDevice;          pAudioOutputDevice = pDevice;
125          if (pEngine) pAudioOutputDevice->Connect(pEngine);          if (pEngineChannel) {
126                pEngineChannel->Connect(pAudioOutputDevice);
127                pAudioOutputDevice->Connect(pEngineChannel->GetEngine());
128            }
129      }      }
130    
131      void SamplerChannel::SetMidiInputDevice(MidiInputDevice* pDevice) {      void SamplerChannel::SetMidiInputDevice(MidiInputDevice* pDevice) {
132         SetMidiInput(pDevice, this->midiPort, this->midiChannel);         SetMidiInput(pDevice, 0, GetMidiInputChannel());
133      }      }
134        
135      void SamplerChannel::SetMidiInputPort(int MidiPort) {      void SamplerChannel::SetMidiInputPort(int MidiPort) {
136         SetMidiInput(pMidiInputDevice, MidiPort, this->midiChannel);         SetMidiInput(GetMidiInputDevice(), MidiPort, GetMidiInputChannel());
137      }      }
138        
139      void SamplerChannel::SetMidiInputChannel(MidiInputDevice::MidiInputPort::midi_chan_t MidiChannel) {      void SamplerChannel::SetMidiInputChannel(midi_chan_t MidiChannel) {
140         SetMidiInput(pMidiInputDevice, this->midiPort, MidiChannel);         SetMidiInput(GetMidiInputDevice(), GetMidiInputPort(), MidiChannel);
141      }      }
142        
143      void SamplerChannel::SetMidiInput(MidiInputDevice* pDevice, int MidiPort, MidiInputDevice::MidiInputPort::midi_chan_t MidiChannel) {      void SamplerChannel::SetMidiInput(MidiInputDevice* pDevice, int iMidiPort, midi_chan_t MidiChannel) {
144          // dereference old midi input port.          if (!pDevice) throw LinuxSamplerException("No MIDI input device assigned.");
145          MidiInputDevice::MidiInputPort *pMidiInputPort = GetMidiInputDevicePort(this->midiPort);  
146            // get old and new midi input port
147            MidiInputPort* pOldMidiInputPort = __GetMidiInputDevicePort(GetMidiInputPort());
148            MidiInputPort* pNewMidiInputPort = pDevice->GetPort(iMidiPort);
149    
150          // disconnect old device port          // disconnect old device port
151          if (pMidiInputPort && pEngine) pMidiInputPort->Disconnect(pEngine);          if (pOldMidiInputPort && pEngineChannel) pOldMidiInputPort->Disconnect(pEngineChannel);
152          // new device, port and channel          // remember new device, port and channel if not engine channel yet created
153          pMidiInputDevice = pDevice;          if (!pEngineChannel) {
154          this->midiPort = MidiPort;              this->pMidiInputDevice = pDevice;
155          this->midiChannel = MidiChannel;              this->iMidiPort        = iMidiPort;
156                this->midiChannel      = MidiChannel;
157            }
158    
159          // connect new device port          // connect new device port
160          pMidiInputPort = GetMidiInputDevicePort(this->midiPort);          if (pNewMidiInputPort && pEngineChannel) pNewMidiInputPort->Connect(pEngineChannel, MidiChannel);
         if (pMidiInputPort && pEngine) pMidiInputPort->Connect(pEngine, MidiChannel);  
161          // Ooops.          // Ooops.
162          if (pMidiInputPort == NULL)          if (pNewMidiInputPort == NULL)
163              throw LinuxSamplerException("There is no MIDI input port with index " + ToString(MidiPort) + ".");              throw LinuxSamplerException("There is no MIDI input port with index " + ToString(iMidiPort) + ".");
164      }      }
165    
166      Engine* SamplerChannel::GetEngine() {      EngineChannel* SamplerChannel::GetEngineChannel() {
167          return pEngine;          return pEngineChannel;
168      }      }
169    
170      MidiInputDevice::MidiInputPort::midi_chan_t SamplerChannel::GetMidiInputChannel() {      midi_chan_t SamplerChannel::GetMidiInputChannel() {
171            if (pEngineChannel) this->midiChannel = pEngineChannel->MidiChannel();
172          return this->midiChannel;          return this->midiChannel;
173      }      }
174    
175      int SamplerChannel::GetMidiInputPort() {      int SamplerChannel::GetMidiInputPort() {
176          MidiInputDevice::MidiInputPort *pMidiInputPort = GetMidiInputDevicePort(this->midiPort);          MidiInputPort* pMidiInputPort = (pEngineChannel) ? pEngineChannel->GetMidiInputPort() : NULL;
177          return (pMidiInputPort ? (int) pMidiInputPort->GetPortNumber() : -1);          if (pMidiInputPort) this->iMidiPort = (int) pMidiInputPort->GetPortNumber();
178            return iMidiPort;
179      }      }
180    
181      AudioOutputDevice* SamplerChannel::GetAudioOutputDevice() {      AudioOutputDevice* SamplerChannel::GetAudioOutputDevice() {
# Line 136  namespace LinuxSampler { Line 183  namespace LinuxSampler {
183      }      }
184    
185      MidiInputDevice* SamplerChannel::GetMidiInputDevice() {      MidiInputDevice* SamplerChannel::GetMidiInputDevice() {
186            if (pEngineChannel)
187                pMidiInputDevice = (pEngineChannel->GetMidiInputPort()) ? pEngineChannel->GetMidiInputPort()->GetDevice() : NULL;
188          return pMidiInputDevice;          return pMidiInputDevice;
189      }      }
190    
191      uint SamplerChannel::Index() {      uint SamplerChannel::Index() {
192          if (iIndex >= 0) return iIndex;          if (iIndex >= 0) return iIndex;
193    
194          std::vector<SamplerChannel*>::iterator iter = pSampler->vSamplerChannels.begin();          Sampler::SamplerChannelMap::iterator iter = pSampler->mSamplerChannels.begin();
195          for (int i = 0; iter != pSampler->vSamplerChannels.end(); i++, iter++) {          for (; iter != pSampler->mSamplerChannels.end(); iter++) {
196              if (*iter == this) {              if (iter->second == this) {
197                  iIndex = i;                  iIndex = iter->first;
198                  return i;                  return iIndex;
199              }              }
200          }          }
201    
202          throw LinuxSamplerException("SamplerChannel index not found");          throw LinuxSamplerException("Internal error: SamplerChannel index not found");
203      }      }
204    
205      MidiInputDevice::MidiInputPort* SamplerChannel::GetMidiInputDevicePort(int MidiPort) {      MidiInputPort* SamplerChannel::__GetMidiInputDevicePort(int iMidiPort) {
206          MidiInputDevice::MidiInputPort *pMidiInputPort = NULL;          MidiInputPort* pMidiInputPort = NULL;
207            MidiInputDevice* pMidiInputDevice = GetMidiInputDevice();
208          if (pMidiInputDevice)          if (pMidiInputDevice)
209              pMidiInputPort = pMidiInputDevice->GetPort(MidiPort);              pMidiInputPort = pMidiInputDevice->GetPort(iMidiPort);
210          return pMidiInputPort;          return pMidiInputPort;
211      }      }
212    
213    
214    
215      // ******************************************************************      // ******************************************************************
216      // * Sampler      // * Sampler
217    
# Line 167  namespace LinuxSampler { Line 219  namespace LinuxSampler {
219      }      }
220    
221      Sampler::~Sampler() {      Sampler::~Sampler() {
222          // delete sampler channels          Reset();
         {  
             std::vector<SamplerChannel*>::iterator iter = vSamplerChannels.begin();  
             for (; iter != vSamplerChannels.end(); iter++) delete *iter;  
         }  
   
         // delete midi input devices  
         {  
             MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();  
             for (; iter != mMidiInputDevices.end(); iter++) {  
                 MidiInputDevice* pDevice = iter->second;  
                 pDevice->StopListen();  
                 delete pDevice;  
             }  
         }  
   
         // delete audio output devices  
         {  
             AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();  
             for (; iter != mAudioOutputDevices.end(); iter++) {  
                 AudioOutputDevice* pDevice = iter->second;  
                 pDevice->Stop();  
                 delete pDevice;  
             }  
         }  
223      }      }
224    
225      uint Sampler::SamplerChannels() {      uint Sampler::SamplerChannels() {
226          return vSamplerChannels.size();          return mSamplerChannels.size();
227      }      }
228    
229      SamplerChannel* Sampler::AddSamplerChannel() {      SamplerChannel* Sampler::AddSamplerChannel() {
230            // if there's no sampler channel yet
231            if (!mSamplerChannels.size()) {
232                SamplerChannel* pChannel = new SamplerChannel(this);
233                mSamplerChannels[0] = pChannel;
234                LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, 1));
235                return pChannel;
236            }
237    
238            // get the highest used sampler channel index
239            uint lastIndex = (--(mSamplerChannels.end()))->first;
240    
241            // check if we reached the index limit
242            if (lastIndex + 1 < lastIndex) {
243                // search for an unoccupied sampler channel index starting from 0
244                for (uint i = 0; i < lastIndex; i++) {
245                    if (mSamplerChannels.find(i) != mSamplerChannels.end()) continue;
246                    // we found an unused index, so insert the new channel there
247                    SamplerChannel* pChannel = new SamplerChannel(this);
248                    mSamplerChannels[i] = pChannel;
249                    LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, i));
250                    return pChannel;
251                }
252                throw LinuxSamplerException("Internal error: could not find unoccupied sampler channel index.");
253            }
254    
255            // we have not reached the index limit so we just add the channel past the highest index
256          SamplerChannel* pChannel = new SamplerChannel(this);          SamplerChannel* pChannel = new SamplerChannel(this);
257          vSamplerChannels.push_back(pChannel);          mSamplerChannels[lastIndex + 1] = pChannel;
258            LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, lastIndex + 1));
259          return pChannel;          return pChannel;
260      }      }
261    
262      SamplerChannel* Sampler::GetSamplerChannel(uint uiSamplerChannel) {      SamplerChannel* Sampler::GetSamplerChannel(uint uiSamplerChannel) {
263          if (uiSamplerChannel >= SamplerChannels()) return NULL;          return (mSamplerChannels.find(uiSamplerChannel) != mSamplerChannels.end()) ? mSamplerChannels[uiSamplerChannel] : NULL;
264          return vSamplerChannels[uiSamplerChannel];      }
265    
266        std::map<uint, SamplerChannel*> Sampler::GetSamplerChannels() {
267            return mSamplerChannels;
268      }      }
269    
270      void Sampler::RemoveSamplerChannel(SamplerChannel* pSamplerChannel) {      void Sampler::RemoveSamplerChannel(SamplerChannel* pSamplerChannel) {
271          std::vector<SamplerChannel*>::iterator iterChan = vSamplerChannels.begin();          SamplerChannelMap::iterator iterChan = mSamplerChannels.begin();
272          for (; iterChan != vSamplerChannels.end(); iterChan++) {          for (; iterChan != mSamplerChannels.end(); iterChan++) {
273              if (*iterChan == pSamplerChannel) {              if (iterChan->second == pSamplerChannel) {
274                  vSamplerChannels.erase(iterChan);                  mSamplerChannels.erase(iterChan);
275                  delete pSamplerChannel;                  delete pSamplerChannel;
276                    LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channel_count, mSamplerChannels.size()));
277                  return;                  return;
278              }              }
279          }          }
# Line 277  namespace LinuxSampler { Line 336  namespace LinuxSampler {
336    
337                  // destroy and free device from memory                  // destroy and free device from memory
338                  delete pDevice;                  delete pDevice;
339    
340                    break;
341              }              }
342          }          }
343      }      }
# Line 297  namespace LinuxSampler { Line 358  namespace LinuxSampler {
358    
359                  // destroy and free device from memory                  // destroy and free device from memory
360                  delete pDevice;                  delete pDevice;
361    
362                    break;
363              }              }
364          }          }
365      }      }
366    
367      MidiInputDevice* Sampler::CreateMidiInputDevice(String MidiDriver, std::map<String,String> Parameters) throw (LinuxSamplerException) {      MidiInputDevice* Sampler::CreateMidiInputDevice(String MidiDriver, std::map<String,String> Parameters) throw (LinuxSamplerException) {
368          // create new device          // create new device
369          MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters);          MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters, this);
370    
371          // add new device to the midi device list          // add new device to the midi device list
372          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 316  namespace LinuxSampler { Line 379  namespace LinuxSampler {
379          return pDevice;          return pDevice;
380      }      }
381    
382        int Sampler::GetVoiceCount() {
383            int count = 0;
384            std::set<Engine*>::iterator it = EngineFactory::EngineInstances().begin();
385    
386            for(; it != EngineFactory::EngineInstances().end(); it++) {
387                count += (*it)->VoiceCount();
388            }
389    
390            return count;
391        }
392    
393        void Sampler::Reset() {
394            // delete sampler channels
395            try {
396                while (true) {
397                        SamplerChannelMap::iterator iter = mSamplerChannels.begin();
398                        if (iter == mSamplerChannels.end()) break;
399                        RemoveSamplerChannel(iter->second);
400                }
401            }
402            catch(...) {
403                std::cerr << "Sampler::Reset(): Exception occured while trying to delete all sampler channels, exiting.\n" << std::flush;
404                exit(EXIT_FAILURE);
405            }
406    
407            // delete midi input devices
408            try {
409                while (true) {
410                        MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();
411                        if (iter == mMidiInputDevices.end()) break;
412                        DestroyMidiInputDevice(iter->second);
413                }
414            }
415            catch(...) {
416                std::cerr << "Sampler::Reset(): Exception occured while trying to delete all MIDI input devices, exiting.\n" << std::flush;
417                exit(EXIT_FAILURE);
418            }
419    
420            // delete audio output devices
421            try {
422                while (true) {
423                        AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();
424                        if (iter == mAudioOutputDevices.end()) break;
425                        DestroyAudioOutputDevice(iter->second);
426                }
427            }
428            catch(...) {
429                std::cerr << "Sampler::Reset(): Exception occured while trying to delete all audio output devices, exiting.\n" << std::flush;
430                exit(EXIT_FAILURE);
431            }
432        }
433    
434  } // namespace LinuxSampler  } // namespace LinuxSampler
Legend:
Removed from v.175  
changed lines
  Added in v.840
  ViewVC Help
Powered by ViewVC