/[svn]/linuxsampler/trunk/src/Sampler.cpp
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revision 212 by schoenebeck, Wed Jul 28 14:17:29 2004 UTC revision 551 by schoenebeck, Tue May 17 18:16:54 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;
44          midiChannel        = MidiInputDevice::MidiInputPort::midi_chan_all;          midiChannel        = MidiInputPort::midi_chan_all;
45          iIndex             = -1;          iIndex             = -1;
46      }      }
47    
48      SamplerChannel::~SamplerChannel() {      SamplerChannel::~SamplerChannel() {
49          if (pEngine) {          if (pEngineChannel) {
50              MidiInputDevice::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 (pEngineChannel) {
53              delete pEngine;                  if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice();
54                    delete pEngineChannel;
55                }
56          }          }
57      }      }
58    
59      void SamplerChannel::LoadEngine(Engine::type_t EngineType) {      void SamplerChannel::SetEngineType(String EngineType) throw (LinuxSamplerException) {
60          dmsg(2,("SamplerChannel: Loading engine..."));          dmsg(2,("SamplerChannel: Assigning engine type..."));
61    
62          // create new engine          // create new engine channel
63          Engine* pNewEngine = NULL;          EngineChannel* pNewEngineChannel = EngineChannelFactory::Create(EngineType);
64          switch (EngineType) {          if (!pNewEngineChannel) throw LinuxSamplerException("Unknown engine type");
             case Engine::type_gig:  
                 pNewEngine = new gig::Engine;  
                 break;  
             default:  
                 throw LinuxSamplerException("Unknown engine type");  
         }  
65    
66          // dereference midi input port.          // dereference midi input port.
67          MidiInputDevice::MidiInputPort *pMidiInputPort = GetMidiInputDevicePort(this->midiPort);          MidiInputPort* pMidiInputPort = GetMidiInputDevicePort(this->midiPort);
68          // disconnect old engine          // disconnect old engine
69          if (pEngine) {          if (pEngineChannel) {
70              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngine);              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngineChannel);
71              if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(pEngine);              if (pAudioOutputDevice) pEngineChannel->DisconnectAudioOutputDevice();
72              delete pEngine;              delete pEngineChannel;
73          }          }
74    
75          // connect new engine          // connect new engine channel
76          pEngine = pNewEngine;          pEngineChannel = pNewEngineChannel;
77          if (pMidiInputPort) pMidiInputPort->Connect(pNewEngine, this->midiChannel);          if (pMidiInputPort) pMidiInputPort->Connect(pNewEngineChannel, this->midiChannel);
78          if (pAudioOutputDevice) pAudioOutputDevice->Connect(pNewEngine);          if (pAudioOutputDevice) {
79                pNewEngineChannel->Connect(pAudioOutputDevice);
80                pAudioOutputDevice->Connect(pNewEngineChannel->GetEngine());
81            }
82          dmsg(2,("OK\n"));          dmsg(2,("OK\n"));
83      }      }
84    
85      void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) {      void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) {
86          // disconnect old device          // disconnect old device
87          if (pAudioOutputDevice && pEngine) pAudioOutputDevice->Disconnect(pEngine);          if (pAudioOutputDevice && pEngineChannel) pEngineChannel->DisconnectAudioOutputDevice();
88          // connect new device          // connect new device
89          pAudioOutputDevice = pDevice;          pAudioOutputDevice = pDevice;
90          if (pEngine) pAudioOutputDevice->Connect(pEngine);          if (pEngineChannel) {
91                pEngineChannel->Connect(pAudioOutputDevice);
92                pAudioOutputDevice->Connect(pEngineChannel->GetEngine());
93            }
94      }      }
95    
96      void SamplerChannel::SetMidiInputDevice(MidiInputDevice* pDevice) {      void SamplerChannel::SetMidiInputDevice(MidiInputDevice* pDevice) {
# Line 97  namespace LinuxSampler { Line 101  namespace LinuxSampler {
101         SetMidiInput(pMidiInputDevice, MidiPort, this->midiChannel);         SetMidiInput(pMidiInputDevice, MidiPort, this->midiChannel);
102      }      }
103    
104      void SamplerChannel::SetMidiInputChannel(MidiInputDevice::MidiInputPort::midi_chan_t MidiChannel) {      void SamplerChannel::SetMidiInputChannel(MidiInputPort::midi_chan_t MidiChannel) {
105         SetMidiInput(pMidiInputDevice, this->midiPort, MidiChannel);         SetMidiInput(pMidiInputDevice, this->midiPort, MidiChannel);
106      }      }
107    
108      void SamplerChannel::SetMidiInput(MidiInputDevice* pDevice, int MidiPort, MidiInputDevice::MidiInputPort::midi_chan_t MidiChannel) {      void SamplerChannel::SetMidiInput(MidiInputDevice* pDevice, int iMidiPort, MidiInputPort::midi_chan_t MidiChannel) {
109          // dereference old midi input port.          // dereference old midi input port.
110          MidiInputDevice::MidiInputPort *pMidiInputPort = GetMidiInputDevicePort(this->midiPort);          MidiInputPort* pMidiInputPort = GetMidiInputDevicePort(this->midiPort);
111          // disconnect old device port          // disconnect old device port
112          if (pMidiInputPort && pEngine) pMidiInputPort->Disconnect(pEngine);          if (pMidiInputPort && pEngineChannel) pMidiInputPort->Disconnect(pEngineChannel);
113          // new device, port and channel          // new device, port and channel
114          pMidiInputDevice = pDevice;          pMidiInputDevice = pDevice;
115          this->midiPort = MidiPort;          this->midiPort = iMidiPort;
116          this->midiChannel = MidiChannel;          this->midiChannel = MidiChannel;
117          // connect new device port          // connect new device port
118          pMidiInputPort = GetMidiInputDevicePort(this->midiPort);          pMidiInputPort = GetMidiInputDevicePort(this->midiPort);
119          if (pMidiInputPort && pEngine) pMidiInputPort->Connect(pEngine, MidiChannel);          if (pMidiInputPort && pEngineChannel) pMidiInputPort->Connect(pEngineChannel, MidiChannel);
120          // Ooops.          // Ooops.
121          if (pMidiInputPort == NULL)          if (pMidiInputPort == NULL)
122              throw LinuxSamplerException("There is no MIDI input port with index " + ToString(MidiPort) + ".");              throw LinuxSamplerException("There is no MIDI input port with index " + ToString(iMidiPort) + ".");
123      }      }
124    
125      Engine* SamplerChannel::GetEngine() {      EngineChannel* SamplerChannel::GetEngineChannel() {
126          return pEngine;          return pEngineChannel;
127      }      }
128    
129      MidiInputDevice::MidiInputPort::midi_chan_t SamplerChannel::GetMidiInputChannel() {      MidiInputPort::midi_chan_t SamplerChannel::GetMidiInputChannel() {
130          return this->midiChannel;          return this->midiChannel;
131      }      }
132    
133      int SamplerChannel::GetMidiInputPort() {      int SamplerChannel::GetMidiInputPort() {
134          MidiInputDevice::MidiInputPort *pMidiInputPort = GetMidiInputDevicePort(this->midiPort);          MidiInputPort* pMidiInputPort = GetMidiInputDevicePort(this->midiPort);
135          return (pMidiInputPort ? (int) pMidiInputPort->GetPortNumber() : -1);          return (pMidiInputPort ? (int) pMidiInputPort->GetPortNumber() : -1);
136      }      }
137    
# Line 153  namespace LinuxSampler { Line 157  namespace LinuxSampler {
157          throw LinuxSamplerException("Internal error: SamplerChannel index not found");          throw LinuxSamplerException("Internal error: SamplerChannel index not found");
158      }      }
159    
160      MidiInputDevice::MidiInputPort* SamplerChannel::GetMidiInputDevicePort(int MidiPort) {      MidiInputPort* SamplerChannel::GetMidiInputDevicePort(int iMidiPort) {
161          MidiInputDevice::MidiInputPort *pMidiInputPort = NULL;          MidiInputPort* pMidiInputPort = NULL;
162          if (pMidiInputDevice)          if (pMidiInputDevice)
163              pMidiInputPort = pMidiInputDevice->GetPort(MidiPort);              pMidiInputPort = pMidiInputDevice->GetPort(iMidiPort);
164          return pMidiInputPort;          return pMidiInputPort;
165      }      }
166    
# Line 181  namespace LinuxSampler { Line 185  namespace LinuxSampler {
185          if (!mSamplerChannels.size()) {          if (!mSamplerChannels.size()) {
186              SamplerChannel* pChannel = new SamplerChannel(this);              SamplerChannel* pChannel = new SamplerChannel(this);
187              mSamplerChannels[0] = pChannel;              mSamplerChannels[0] = pChannel;
188                LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channels, 1));
189              return pChannel;              return pChannel;
190          }          }
191    
# Line 195  namespace LinuxSampler { Line 200  namespace LinuxSampler {
200                  // we found an unused index, so insert the new channel there                  // we found an unused index, so insert the new channel there
201                  SamplerChannel* pChannel = new SamplerChannel(this);                  SamplerChannel* pChannel = new SamplerChannel(this);
202                  mSamplerChannels[i] = pChannel;                  mSamplerChannels[i] = pChannel;
203                    LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channels, i));
204                  return pChannel;                  return pChannel;
205              }              }
206              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 209  namespace LinuxSampler {
209          // 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
210          SamplerChannel* pChannel = new SamplerChannel(this);          SamplerChannel* pChannel = new SamplerChannel(this);
211          mSamplerChannels[lastIndex + 1] = pChannel;          mSamplerChannels[lastIndex + 1] = pChannel;
212            LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channels, lastIndex + 1));
213          return pChannel;          return pChannel;
214      }      }
215    
# Line 220  namespace LinuxSampler { Line 227  namespace LinuxSampler {
227              if (iterChan->second == pSamplerChannel) {              if (iterChan->second == pSamplerChannel) {
228                  mSamplerChannels.erase(iterChan);                  mSamplerChannels.erase(iterChan);
229                  delete pSamplerChannel;                  delete pSamplerChannel;
230                    LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_channels, mSamplerChannels.size()));
231                  return;                  return;
232              }              }
233          }          }
# Line 308  namespace LinuxSampler { Line 316  namespace LinuxSampler {
316    
317      MidiInputDevice* Sampler::CreateMidiInputDevice(String MidiDriver, std::map<String,String> Parameters) throw (LinuxSamplerException) {      MidiInputDevice* Sampler::CreateMidiInputDevice(String MidiDriver, std::map<String,String> Parameters) throw (LinuxSamplerException) {
318          // create new device          // create new device
319          MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters);          MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters, this);
320    
321          // add new device to the midi device list          // add new device to the midi device list
322          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 324  namespace LinuxSampler { Line 332  namespace LinuxSampler {
332      void Sampler::Reset() {      void Sampler::Reset() {
333          // delete sampler channels          // delete sampler channels
334          try {          try {
335              SamplerChannelMap::iterator iter = mSamplerChannels.begin();              while (true) {
336              for (; iter != mSamplerChannels.end(); iter++) {                      SamplerChannelMap::iterator iter = mSamplerChannels.begin();
337                  RemoveSamplerChannel(iter->second);                      if (iter == mSamplerChannels.end()) break;
338                        RemoveSamplerChannel(iter->second);
339              }              }
340          }          }
341          catch(...) {          catch(...) {
# Line 336  namespace LinuxSampler { Line 345  namespace LinuxSampler {
345    
346          // delete midi input devices          // delete midi input devices
347          try {          try {
348              MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();              while (true) {
349              for (; iter != mMidiInputDevices.end(); iter++) {                      MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();
350                  DestroyMidiInputDevice(iter->second);                      if (iter == mMidiInputDevices.end()) break;
351                        DestroyMidiInputDevice(iter->second);
352              }              }
353          }          }
354          catch(...) {          catch(...) {
# Line 348  namespace LinuxSampler { Line 358  namespace LinuxSampler {
358    
359          // delete audio output devices          // delete audio output devices
360          try {          try {
361              AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();              while (true) {
362              for (; iter != mAudioOutputDevices.end(); iter++) {                      AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();
363                  DestroyAudioOutputDevice(iter->second);                      if (iter == mAudioOutputDevices.end()) break;
364                        DestroyAudioOutputDevice(iter->second);
365              }              }
366          }          }
367          catch(...) {          catch(...) {
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