/[svn]/linuxsampler/trunk/src/engines/gig/Engine.cpp
ViewVC logotype

Diff of /linuxsampler/trunk/src/engines/gig/Engine.cpp

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

revision 80 by schoenebeck, Sun May 23 19:16:33 2004 UTC revision 233 by schoenebeck, Tue Sep 7 09:32:21 2004 UTC
# Line 62  namespace LinuxSampler { namespace gig { Line 62  namespace LinuxSampler { namespace gig {
62          pBasicFilterParameters  = NULL;          pBasicFilterParameters  = NULL;
63          pMainFilterParameters   = NULL;          pMainFilterParameters   = NULL;
64    
65            InstrumentIdx = -1;
66            InstrumentStat = -1;
67    
68            AudioDeviceChannelLeft  = -1;
69            AudioDeviceChannelRight = -1;
70    
71          ResetInternal();          ResetInternal();
72      }      }
73    
# Line 146  namespace LinuxSampler { namespace gig { Line 152  namespace LinuxSampler { namespace gig {
152          SustainPedal        = false;          SustainPedal        = false;
153          ActiveVoiceCount    = 0;          ActiveVoiceCount    = 0;
154          ActiveVoiceCountMax = 0;          ActiveVoiceCountMax = 0;
155            GlobalVolume        = 1.0;
156    
157          // set all MIDI controller values to zero          // set all MIDI controller values to zero
158          memset(ControllerTable, 0x00, 128);          memset(ControllerTable, 0x00, 128);
# Line 195  namespace LinuxSampler { namespace gig { Line 202  namespace LinuxSampler { namespace gig {
202              Instruments.HandBack(pInstrument, this);              Instruments.HandBack(pInstrument, this);
203          }          }
204    
205            InstrumentFile = FileName;
206            InstrumentIdx = Instrument;
207            InstrumentStat = 0;
208    
209          // request gig instrument from instrument manager          // request gig instrument from instrument manager
210          try {          try {
211              instrument_id_t instrid;              instrument_id_t instrid;
# Line 202  namespace LinuxSampler { namespace gig { Line 213  namespace LinuxSampler { namespace gig {
213              instrid.iInstrument = Instrument;              instrid.iInstrument = Instrument;
214              pInstrument = Instruments.Borrow(instrid, this);              pInstrument = Instruments.Borrow(instrid, this);
215              if (!pInstrument) {              if (!pInstrument) {
216                    InstrumentStat = -1;
217                  dmsg(1,("no instrument loaded!!!\n"));                  dmsg(1,("no instrument loaded!!!\n"));
218                  exit(EXIT_FAILURE);                  exit(EXIT_FAILURE);
219              }              }
220          }          }
221          catch (RIFF::Exception e) {          catch (RIFF::Exception e) {
222                InstrumentStat = -2;
223              String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message;              String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message;
224              throw LinuxSamplerException(msg);              throw LinuxSamplerException(msg);
225          }          }
226          catch (InstrumentResourceManagerException e) {          catch (InstrumentResourceManagerException e) {
227                InstrumentStat = -3;
228              String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message();              String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message();
229              throw LinuxSamplerException(msg);              throw LinuxSamplerException(msg);
230          }          }
231          catch (...) {          catch (...) {
232                InstrumentStat = -4;
233              throw LinuxSamplerException("gig::Engine error: Failed to load instrument, cause: Unknown exception while trying to parse gig file.");              throw LinuxSamplerException("gig::Engine error: Failed to load instrument, cause: Unknown exception while trying to parse gig file.");
234          }          }
235    
236            InstrumentStat = 100;
237    
238          // inform audio driver for the need of two channels          // inform audio driver for the need of two channels
239          try {          try {
240              if (pAudioOutputDevice) pAudioOutputDevice->AcquireChannels(2); // gig Engine only stereo              if (pAudioOutputDevice) pAudioOutputDevice->AcquireChannels(2); // gig Engine only stereo
# Line 265  namespace LinuxSampler { namespace gig { Line 282  namespace LinuxSampler { namespace gig {
282              throw LinuxSamplerException(msg);              throw LinuxSamplerException(msg);
283          }          }
284    
285            this->AudioDeviceChannelLeft  = 0;
286            this->AudioDeviceChannelRight = 1;
287            this->pOutputLeft             = pAudioOutputDevice->Channel(0)->Buffer();
288            this->pOutputRight            = pAudioOutputDevice->Channel(1)->Buffer();
289            this->MaxSamplesPerCycle      = pAudioOutputDevice->MaxSamplesPerCycle();
290            this->SampleRate              = pAudioOutputDevice->SampleRate();
291    
292          // (re)create disk thread          // (re)create disk thread
293          if (this->pDiskThread) {          if (this->pDiskThread) {
294              this->pDiskThread->StopThread();              this->pDiskThread->StopThread();
# Line 278  namespace LinuxSampler { namespace gig { Line 302  namespace LinuxSampler { namespace gig {
302    
303          for (Voice* pVoice = pVoicePool->alloc(); pVoice; pVoice = pVoicePool->alloc()) {          for (Voice* pVoice = pVoicePool->alloc(); pVoice; pVoice = pVoicePool->alloc()) {
304              pVoice->pDiskThread = this->pDiskThread;              pVoice->pDiskThread = this->pDiskThread;
             pVoice->SetOutput(pAudioOut);  
305              dmsg(3,("d"));              dmsg(3,("d"));
306          }          }
307          pVoicePool->clear();          pVoicePool->clear();
# Line 316  namespace LinuxSampler { namespace gig { Line 339  namespace LinuxSampler { namespace gig {
339              AudioOutputDevice* olddevice = pAudioOutputDevice;              AudioOutputDevice* olddevice = pAudioOutputDevice;
340              pAudioOutputDevice = NULL;              pAudioOutputDevice = NULL;
341              olddevice->Disconnect(this);              olddevice->Disconnect(this);
342                AudioDeviceChannelLeft  = -1;
343                AudioDeviceChannelRight = -1;
344          }          }
345      }      }
346    
# Line 502  namespace LinuxSampler { namespace gig { Line 527  namespace LinuxSampler { namespace gig {
527              pEvents->move(pNoteOnEvent, pKey->pEvents); // move event to the key's own event list              pEvents->move(pNoteOnEvent, pKey->pEvents); // move event to the key's own event list
528          }          }
529    
530          // allocate a new voice for the key          // allocate and trigger a new voice for the key
531          Voice* pNewVoice = pKey->pActiveVoices->alloc();          LaunchVoice(pNoteOnEvent);
         if (pNewVoice) {  
             // launch the new voice  
             if (pNewVoice->Trigger(pNoteOnEvent, this->Pitch, this->pInstrument) < 0) {  
                 dmsg(1,("Triggering new voice failed!\n"));  
                 pKey->pActiveVoices->free(pNewVoice);  
             }  
             else if (!pKey->Active) { // mark as active key  
                 pKey->Active = true;  
                 pKey->pSelf  = pActiveKeys->alloc();  
                 *pKey->pSelf = pNoteOnEvent->Key;  
             }  
         }  
         else std::cerr << "No free voice!" << std::endl << std::flush;  
532      }      }
533    
534      /**      /**
# Line 551  namespace LinuxSampler { namespace gig { Line 563  namespace LinuxSampler { namespace gig {
563      }      }
564    
565      /**      /**
566         *  Allocates and triggers a new voice. This method will usually be
567         *  called by the ProcessNoteOn() method and by the voices itself
568         *  (e.g. to spawn further voices on the same key for layered sounds).
569         *
570         *  @param pNoteOnEvent - key, velocity and time stamp of the event
571         *  @param iLayer       - layer index for the new voice (optional - only
572         *                        in case of layered sounds of course)
573         */
574        void Engine::LaunchVoice(Event* pNoteOnEvent, int iLayer) {
575            midi_key_info_t* pKey = &pMIDIKeyInfo[pNoteOnEvent->Key];
576    
577            // allocate a new voice for the key
578            Voice* pNewVoice = pKey->pActiveVoices->alloc();
579            if (pNewVoice) {
580                // launch the new voice
581                if (pNewVoice->Trigger(pNoteOnEvent, this->Pitch, this->pInstrument, iLayer) < 0) {
582                    dmsg(1,("Triggering new voice failed!\n"));
583                    pKey->pActiveVoices->free(pNewVoice);
584                }
585                else if (!pKey->Active) { // mark as active key
586                    pKey->Active = true;
587                    pKey->pSelf  = pActiveKeys->alloc();
588                    *pKey->pSelf = pNoteOnEvent->Key;
589                }
590            }
591            else std::cerr << "No free voice!" << std::endl << std::flush;
592        }
593    
594        /**
595       *  Immediately kills the voice given with pVoice (no matter if sustain is       *  Immediately kills the voice given with pVoice (no matter if sustain is
596       *  pressed or not) and removes it from the MIDI key's list of active voice.       *  pressed or not) and removes it from the MIDI key's list of active voice.
597       *  This method will e.g. be called if a voice went inactive by itself.       *  This method will e.g. be called if a voice went inactive by itself.
# Line 662  namespace LinuxSampler { namespace gig { Line 703  namespace LinuxSampler { namespace gig {
703          GlobalVolume = f;          GlobalVolume = f;
704      }      }
705    
706        uint Engine::Channels() {
707            return 2;
708        }
709    
710        void Engine::SetOutputChannel(uint EngineAudioChannel, uint AudioDeviceChannel) {
711            AudioChannel* pChannel = pAudioOutputDevice->Channel(AudioDeviceChannel);
712            if (!pChannel) throw AudioOutputException("Invalid audio output device channel " + ToString(AudioDeviceChannel));
713            switch (EngineAudioChannel) {
714                case 0: // left output channel
715                    pOutputLeft = pChannel->Buffer();
716                    AudioDeviceChannelLeft = AudioDeviceChannel;
717                    break;
718                case 1: // right output channel
719                    pOutputRight = pChannel->Buffer();
720                    AudioDeviceChannelRight = AudioDeviceChannel;
721                    break;
722                default:
723                    throw AudioOutputException("Invalid engine audio channel " + ToString(EngineAudioChannel));
724            }
725        }
726    
727        int Engine::OutputChannel(uint EngineAudioChannel) {
728            switch (EngineAudioChannel) {
729                case 0: // left channel
730                    return AudioDeviceChannelLeft;
731                case 1: // right channel
732                    return AudioDeviceChannelRight;
733                default:
734                    throw AudioOutputException("Invalid engine audio channel " + ToString(EngineAudioChannel));
735            }
736        }
737    
738      uint Engine::VoiceCount() {      uint Engine::VoiceCount() {
739          return ActiveVoiceCount;          return ActiveVoiceCount;
740      }      }
# Line 690  namespace LinuxSampler { namespace gig { Line 763  namespace LinuxSampler { namespace gig {
763          return pDiskThread->GetBufferFillPercentage();          return pDiskThread->GetBufferFillPercentage();
764      }      }
765    
766        String Engine::EngineName() {
767            return "GigEngine";
768        }
769    
770        String Engine::InstrumentFileName() {
771            return InstrumentFile;
772        }
773    
774        int Engine::InstrumentIndex() {
775            return InstrumentIdx;
776        }
777    
778        int Engine::InstrumentStatus() {
779            return InstrumentStat;
780        }
781    
782      String Engine::Description() {      String Engine::Description() {
783          return "Gigasampler Engine";          return "Gigasampler Engine";
784      }      }
785    
786      String Engine::Version() {      String Engine::Version() {
787          return "0.0.1-0cvs20040423";          String s = "$Revision: 1.9 $";
788            return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword
789      }      }
790    
791  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
Legend:
Removed from v.80  
changed lines
  Added in v.233
  ViewVC Help
Powered by ViewVC