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

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revision 64 by schoenebeck, Thu May 6 20:06:20 2004 UTC revision 155 by senkov, Mon Jun 28 04:30:11 2004 UTC
# Line 20  Line 20 
20   *   MA  02111-1307  USA                                                   *   *   MA  02111-1307  USA                                                   *
21   ***************************************************************************/   ***************************************************************************/
22    
23    #include <sstream>
24    
25  #include "Sampler.h"  #include "Sampler.h"
26    
27  #include "audiodriver/AudioOutputDeviceAlsa.h"  #include "audiodriver/AudioOutputDeviceFactory.h"
28  #include "audiodriver/AudioOutputDeviceJack.h"  #include "mididriver/MidiInputDeviceFactory.h"
 #include "mididriver/MidiInputDeviceAlsa.h"  
29  #include "engines/gig/Engine.h"  #include "engines/gig/Engine.h"
30    
31  namespace LinuxSampler {  namespace LinuxSampler {
# Line 35  namespace LinuxSampler { Line 36  namespace LinuxSampler {
36      SamplerChannel::SamplerChannel(Sampler* pS) {      SamplerChannel::SamplerChannel(Sampler* pS) {
37          pSampler           = pS;          pSampler           = pS;
38          pEngine            = NULL;          pEngine            = NULL;
39          pMidiInputDevice   = NULL;          pMidiInputPort     = NULL;
40          pAudioOutputDevice = NULL;          pAudioOutputDevice = NULL;
41          iIndex             = -1;          iIndex             = -1;
42            midiChannel        = MidiInputDevice::MidiInputPort::midi_chan_all;
43      }      }
44    
45      SamplerChannel::~SamplerChannel() {      SamplerChannel::~SamplerChannel() {
46          if (pEngine) {          if (pEngine) {
47              if (pMidiInputDevice) pMidiInputDevice->Disconnect(pEngine);              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngine);
48              if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(pEngine);              if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(pEngine);
49              delete pEngine;              delete pEngine;
50          }          }
# Line 63  namespace LinuxSampler { Line 65  namespace LinuxSampler {
65    
66          // disconnect old engine          // disconnect old engine
67          if (pEngine) {          if (pEngine) {
68              if (pMidiInputDevice) pMidiInputDevice->Disconnect(pEngine);              if (pMidiInputPort) pMidiInputPort->Disconnect(pEngine);
69              if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(pEngine);              if (pAudioOutputDevice) pAudioOutputDevice->Disconnect(pEngine);
70              delete pEngine;              delete pEngine;
71          }          }
72    
73          // connect new engine          // connect new engine
74          pEngine = pNewEngine;          pEngine = pNewEngine;
75          if (pMidiInputDevice) pMidiInputDevice->Connect(pNewEngine, (MidiInputDevice::midi_chan_t) Index());          if (pMidiInputPort) pMidiInputPort->Connect(pNewEngine, (MidiInputDevice::MidiInputPort::midi_chan_t) Index());
76          if (pAudioOutputDevice) pAudioOutputDevice->Connect(pNewEngine);          if (pAudioOutputDevice) pAudioOutputDevice->Connect(pNewEngine);
77          dmsg(2,("OK\n"));          dmsg(2,("OK\n"));
78      }      }
79    
80      void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice::type_t AudioType) {      void SamplerChannel::SetAudioOutputDevice(AudioOutputDevice* pDevice) {
         // get / create desired audio device  
         AudioOutputDevice* pDevice = pSampler->GetAudioOutputDevice(AudioType);  
         if (!pDevice) pDevice = pSampler->CreateAudioOutputDevice(AudioType);  
   
81          // disconnect old device          // disconnect old device
82          if (pAudioOutputDevice && pEngine) pAudioOutputDevice->Disconnect(pEngine);          if (pAudioOutputDevice && pEngine) pAudioOutputDevice->Disconnect(pEngine);
83    
# Line 88  namespace LinuxSampler { Line 86  namespace LinuxSampler {
86          if (pEngine) pAudioOutputDevice->Connect(pEngine);          if (pEngine) pAudioOutputDevice->Connect(pEngine);
87      }      }
88    
89      void SamplerChannel::SetMidiInputDevice(MidiInputDevice::type_t MidiType, MidiInputDevice::midi_chan_t MidiChannel) {      void SamplerChannel::SetMidiInputPort(MidiInputDevice* pDevice, int midiPort, MidiInputDevice::MidiInputPort::midi_chan_t MidiChannel) {
90          // get / create desired midi device          // disconnect old port
91          MidiInputDevice* pDevice = pSampler->GetMidiInputDevice(MidiType);          if (pMidiInputPort && pEngine) pMidiInputPort->Disconnect(pEngine);
92          if (!pDevice) pDevice = pSampler->CreateMidiInputDevice(MidiType);  
93            // connect new port
94          // disconnect old device          pMidiInputPort = pDevice->GetPort(midiPort);
95          if (pMidiInputDevice && pEngine) pMidiInputDevice->Disconnect(pEngine);          if (!pMidiInputPort)
96                    throw LinuxSamplerException("MIDI port doesn't exist");
97          // connect new device          if (pEngine) {
98          pMidiInputDevice = pDevice;                  pMidiInputPort->Connect(pEngine, MidiChannel);
99          if (pEngine) pMidiInputDevice->Connect(pEngine, MidiChannel);                  this->midiChannel = MidiChannel;
100            }
101      }      }
102    
103      Engine* SamplerChannel::GetEngine() {      Engine* SamplerChannel::GetEngine() {
104          return pEngine;          return pEngine;
105      }      }
106    
107      MidiInputDevice* SamplerChannel::GetMidiInputDevice() {      MidiInputDevice::MidiInputPort* SamplerChannel::GetMidiInputPort() {
108          return pMidiInputDevice;          return pMidiInputPort;
109      }      }
110    
111      AudioOutputDevice* SamplerChannel::GetAudioOutputDevice() {      AudioOutputDevice* SamplerChannel::GetAudioOutputDevice() {
112          return pAudioOutputDevice;          return pAudioOutputDevice;
113      }      }
114    
115        MidiInputDevice* SamplerChannel::GetMidiInputDevice() {
116            MidiInputDevice::MidiInputPort* port = GetMidiInputPort();
117            if (!port)
118                    return NULL;
119            return port->GetDevice();
120        }
121    
122      uint SamplerChannel::Index() {      uint SamplerChannel::Index() {
123          if (iIndex >= 0) return iIndex;          if (iIndex >= 0) return iIndex;
124    
# Line 143  namespace LinuxSampler { Line 149  namespace LinuxSampler {
149    
150          // delete midi input devices          // delete midi input devices
151          {          {
152              MidiInputDeviceMap::iterator iter = MidiInputDevices.begin();              MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();
153              for (; iter != MidiInputDevices.end(); iter++) {              for (; iter != mMidiInputDevices.end(); iter++) {
154                  MidiInputDevice* pDevice = iter->second;                  MidiInputDevice* pDevice = iter->second;
155                  pDevice->StopListen();                  pDevice->StopListen();
156                  delete pDevice;                  delete pDevice;
# Line 153  namespace LinuxSampler { Line 159  namespace LinuxSampler {
159    
160          // delete audio output devices          // delete audio output devices
161          {          {
162              AudioOutputDeviceMap::iterator iter = AudioOutputDevices.begin();              AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();
163              for (; iter != AudioOutputDevices.end(); iter++) {              for (; iter != mAudioOutputDevices.end(); iter++) {
164                  AudioOutputDevice* pDevice = iter->second;                  AudioOutputDevice* pDevice = iter->second;
165                  pDevice->Stop();                  pDevice->Stop();
166                  delete pDevice;                  delete pDevice;
# Line 194  namespace LinuxSampler { Line 200  namespace LinuxSampler {
200          RemoveSamplerChannel(pChannel);          RemoveSamplerChannel(pChannel);
201      }      }
202    
203      AudioOutputDevice* Sampler::CreateAudioOutputDevice(AudioOutputDevice::type_t AudioType) {      std::vector<String> Sampler::AvailableAudioOutputDrivers() {
204          // check if device already created          return AudioOutputDeviceFactory::AvailableDrivers();
205          AudioOutputDevice* pDevice = GetAudioOutputDevice(AudioType);      }
         if (pDevice) return pDevice;  
206    
207        AudioOutputDevice* Sampler::CreateAudioOutputDevice(String AudioDriver, std::map<String,String> Parameters) throw (LinuxSamplerException) {
208          // create new device          // create new device
209          switch (AudioType) {          AudioOutputDevice* pDevice = AudioOutputDeviceFactory::Create(AudioDriver, Parameters);
             case AudioOutputDevice::type_alsa:  
                 pDevice = new AudioOutputDeviceAlsa;  
                 break;  
             case AudioOutputDevice::type_jack:  
                 pDevice = new AudioOutputDeviceJack;  
                 break;  
             default:  
                 throw LinuxSamplerException("Unknown audio output device type");  
         }  
210    
211          // activate device          // activate device
212          pDevice->Play();          pDevice->Play();
213    
214          // add new audio device to the audio device list          // add new audio device to the audio device list
215          AudioOutputDevices[AudioType] = pDevice;          for (uint i = 0; ; i++) { // seek for a free place starting from the beginning
216                if (!mAudioOutputDevices[i]) {
217                    mAudioOutputDevices[i] = pDevice;
218                    break;
219                }
220            }
221    
222          return pDevice;          return pDevice;
223      }      }
224    
225      AudioOutputDevice* Sampler::GetAudioOutputDevice(AudioOutputDevice::type_t AudioType) {      uint Sampler::AudioOutputDevices() {
226          AudioOutputDeviceMap::iterator iter = AudioOutputDevices.find(AudioType);          return mAudioOutputDevices.size();
         return (iter != AudioOutputDevices.end()) ? iter->second : NULL;  
227      }      }
228    
229      MidiInputDevice* Sampler::CreateMidiInputDevice(MidiInputDevice::type_t MidiType) {      uint Sampler::MidiInputDevices() {
230          // check if device already created          return mMidiInputDevices.size();
231          MidiInputDevice* pDevice = GetMidiInputDevice(MidiType);      }
         if (pDevice) return pDevice;  
232    
233          // create new device      std::map<uint, AudioOutputDevice*> Sampler::GetAudioOutputDevices() {
234          switch (MidiType) {          return mAudioOutputDevices;
235              case MidiInputDevice::type_alsa:      }
236                  pDevice = new MidiInputDeviceAlsa;  
237                  break;      std::map<uint, MidiInputDevice*> Sampler::GetMidiInputDevices() {
238              default:          return mMidiInputDevices;
239                  throw LinuxSamplerException("Unknown audio output device type");      }
240    
241        void Sampler::DestroyAudioOutputDevice(AudioOutputDevice* pDevice) throw (LinuxSamplerException) {
242            AudioOutputDeviceMap::iterator iter = mAudioOutputDevices.begin();
243            for (; iter != mAudioOutputDevices.end(); iter++) {
244                if (iter->second == pDevice) {
245                    // check if there are still sampler engines connected to this device
246                    for (uint i = 0; i < SamplerChannels(); i++)
247                        if (GetSamplerChannel(i)->GetAudioOutputDevice() == pDevice) throw LinuxSamplerException("Sampler channel " + ToString(i) + " is still connected to the audio output device.");
248    
249                    // disable device
250                    pDevice->Stop();
251    
252                    // remove device from the device list
253                    mAudioOutputDevices.erase(iter);
254    
255                    // destroy and free device from memory
256                    delete pDevice;
257                }
258          }          }
259        }
260    
261        void Sampler::DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (LinuxSamplerException) {
262            MidiInputDeviceMap::iterator iter = mMidiInputDevices.begin();
263            for (; iter != mMidiInputDevices.end(); iter++) {
264                if (iter->second == pDevice) {
265                    // check if there are still sampler engines connected to this device
266                    for (uint i = 0; i < SamplerChannels(); i++)
267                        if (GetSamplerChannel(i)->GetMidiInputDevice() == pDevice) throw LinuxSamplerException("Sampler channel " + ToString(i) + " is still connected to the midi input device.");
268    
269                    // disable device
270                    pDevice->StopListen();
271    
272                    // remove device from the device list
273                    mMidiInputDevices.erase(iter);
274    
275                    // destroy and free device from memory
276                    delete pDevice;
277                }
278            }
279        }
280    
281        MidiInputDevice* Sampler::CreateMidiInputDevice(String MidiDriver, std::map<String,String> Parameters) throw (LinuxSamplerException) {
282            // create new device
283            MidiInputDevice* pDevice = MidiInputDeviceFactory::Create(MidiDriver, Parameters);
284    
285          // activate device          // activate device
286          pDevice->Listen();          pDevice->Listen();
287    
288          // add new MIDI device to the MIDI device list          // add new device to the midi device list
289          MidiInputDevices[MidiType] = pDevice;          for (uint i = 0; ; i++) { // seek for a free place starting from the beginning
290                    if (!mMidiInputDevices[i]) {
291                            mMidiInputDevices[i] = pDevice;
292                            break;
293                    }
294            }
295    
296          return pDevice;          return pDevice;
297      }      }
298    
     MidiInputDevice* Sampler::GetMidiInputDevice(MidiInputDevice::type_t MidiType) {  
         MidiInputDeviceMap::iterator iter = MidiInputDevices.find(MidiType);  
         return (iter != MidiInputDevices.end()) ? iter->second : NULL;  
     }  
   
299  } // namespace LinuxSampler  } // namespace LinuxSampler
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