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

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

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

revision 1001 by schoenebeck, Wed Dec 27 16:17:08 2006 UTC revision 1646 by persson, Sun Jan 20 15:04:51 2008 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, 2006 Christian Schoenebeck                        *   *   Copyright (C) 2005 - 2008 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 23  Line 23 
23    
24  #include "EngineChannel.h"  #include "EngineChannel.h"
25    
26    #include "../../common/global_private.h"
27    
28  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
29    
30      EngineChannel::EngineChannel() {      EngineChannel::EngineChannel() :
31            InstrumentChangeCommandReader(InstrumentChangeCommand) {
32          pMIDIKeyInfo = new midi_key_info_t[128];          pMIDIKeyInfo = new midi_key_info_t[128];
33          pEngine      = NULL;          pEngine      = NULL;
34          pInstrument  = NULL;          pInstrument  = NULL;
# Line 57  namespace LinuxSampler { namespace gig { Line 60  namespace LinuxSampler { namespace gig {
60    
61      EngineChannel::~EngineChannel() {      EngineChannel::~EngineChannel() {
62          DisconnectAudioOutputDevice();          DisconnectAudioOutputDevice();
         if (pInstrument) Engine::instruments.HandBack(pInstrument, this);  
63          if (pEventQueue) delete pEventQueue;          if (pEventQueue) delete pEventQueue;
64          if (pActiveKeys) delete pActiveKeys;          if (pActiveKeys) delete pActiveKeys;
65          if (pMIDIKeyInfo) delete[] pMIDIKeyInfo;          if (pMIDIKeyInfo) delete[] pMIDIKeyInfo;
# Line 159  namespace LinuxSampler { namespace gig { Line 161  namespace LinuxSampler { namespace gig {
161       * This method will then actually start to load the instrument and block       * This method will then actually start to load the instrument and block
162       * the calling thread until loading was completed.       * the calling thread until loading was completed.
163       *       *
      * @returns detailed description of the method call result  
164       * @see PrepareLoadInstrument()       * @see PrepareLoadInstrument()
165       */       */
166      void EngineChannel::LoadInstrument() {      void EngineChannel::LoadInstrument() {
167            // make sure we don't trigger any new notes with an old
168          if (pEngine) pEngine->DisableAndLock();          // instrument
169            instrument_change_command_t& cmd = ChangeInstrument(0);
170          ResetInternal();          if (cmd.pInstrument) {
171                // give old instrument back to instrument manager, but
172          // free old instrument              // keep the dimension regions and samples that are in use
173          if (pInstrument) {              Engine::instruments.HandBackInstrument(cmd.pInstrument, this, cmd.pDimRegionsInUse);
             // give old instrument back to instrument manager  
             Engine::instruments.HandBack(pInstrument, this);  
174          }          }
175            cmd.pDimRegionsInUse->clear();
176    
177          // delete all key groups          // delete all key groups
178          ActiveKeyGroups.clear();          ActiveKeyGroups.clear();
179    
180          // request gig instrument from instrument manager          // request gig instrument from instrument manager
181            ::gig::Instrument* newInstrument;
182          try {          try {
183              InstrumentManager::instrument_id_t instrid;              InstrumentManager::instrument_id_t instrid;
184              instrid.FileName  = InstrumentFile;              instrid.FileName  = InstrumentFile;
185              instrid.Index     = InstrumentIdx;              instrid.Index     = InstrumentIdx;
186              pInstrument = Engine::instruments.Borrow(instrid, this);              newInstrument = Engine::instruments.Borrow(instrid, this);
187              if (!pInstrument) {              if (!newInstrument) {
188                  InstrumentStat = -1;                  throw InstrumentManagerException("resource was not created");
                 dmsg(1,("no instrument loaded!!!\n"));  
                 exit(EXIT_FAILURE);  
189              }              }
190          }          }
191          catch (RIFF::Exception e) {          catch (RIFF::Exception e) {
192              InstrumentStat = -2;              InstrumentStat = -2;
193                StatusChanged(true);
194              String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message;              String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message;
195              throw Exception(msg);              throw Exception(msg);
196          }          }
197          catch (InstrumentResourceManagerException e) {          catch (InstrumentManagerException e) {
198              InstrumentStat = -3;              InstrumentStat = -3;
199                StatusChanged(true);
200              String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message();              String msg = "gig::Engine error: Failed to load instrument, cause: " + e.Message();
201              throw Exception(msg);              throw Exception(msg);
202          }          }
203          catch (...) {          catch (...) {
204              InstrumentStat = -4;              InstrumentStat = -4;
205                StatusChanged(true);
206              throw Exception("gig::Engine error: Failed to load instrument, cause: Unknown exception while trying to parse gig file.");              throw Exception("gig::Engine error: Failed to load instrument, cause: Unknown exception while trying to parse gig file.");
207          }          }
208    
209          // rebuild ActiveKeyGroups map with key groups of current instrument          // rebuild ActiveKeyGroups map with key groups of current instrument
210          for (::gig::Region* pRegion = pInstrument->GetFirstRegion(); pRegion; pRegion = pInstrument->GetNextRegion())          for (::gig::Region* pRegion = newInstrument->GetFirstRegion(); pRegion; pRegion = newInstrument->GetNextRegion())
211              if (pRegion->KeyGroup) ActiveKeyGroups[pRegion->KeyGroup] = NULL;              if (pRegion->KeyGroup) ActiveKeyGroups[pRegion->KeyGroup] = NULL;
212    
213          InstrumentIdxName = pInstrument->pInfo->Name;          InstrumentIdxName = newInstrument->pInfo->Name;
214          InstrumentStat = 100;          InstrumentStat = 100;
215    
216          // inform audio driver for the need of two channels          ChangeInstrument(newInstrument);
         try {  
             if (pEngine && pEngine->pAudioOutputDevice)  
                 pEngine->pAudioOutputDevice->AcquireChannels(2); // gig Engine only stereo  
         }  
         catch (AudioOutputException e) {  
             String msg = "Audio output device unable to provide 2 audio channels, cause: " + e.Message();  
             throw Exception(msg);  
         }  
217    
218          if (pEngine) pEngine->Enable();          StatusChanged(true);
219        }
220    
221    
222        /**
223         * Changes the instrument for an engine channel.
224         *
225         * @param pInstrument - new instrument
226         * @returns the resulting instrument change command after the
227         *          command switch, containing the old instrument and
228         *          the dimregions it is using
229         */
230        EngineChannel::instrument_change_command_t& EngineChannel::ChangeInstrument(::gig::Instrument* pInstrument) {
231            instrument_change_command_t& cmd = InstrumentChangeCommand.GetConfigForUpdate();
232            cmd.pInstrument = pInstrument;
233            cmd.bChangeInstrument = true;
234    
235            return InstrumentChangeCommand.SwitchConfig();
236      }      }
237    
238      /**      /**
# Line 266  namespace LinuxSampler { namespace gig { Line 277  namespace LinuxSampler { namespace gig {
277          pEngine = Engine::AcquireEngine(this, pAudioOut);          pEngine = Engine::AcquireEngine(this, pAudioOut);
278          ResetInternal();          ResetInternal();
279          pEvents = new RTList<Event>(pEngine->pEventPool);          pEvents = new RTList<Event>(pEngine->pEventPool);
280    
281            // reset the instrument change command struct (need to be done
282            // twice, as it is double buffered)
283            {
284                instrument_change_command_t& cmd = InstrumentChangeCommand.GetConfigForUpdate();
285                cmd.pDimRegionsInUse = new RTList< ::gig::DimensionRegion*>(pEngine->pDimRegionPool[0]);
286                cmd.pInstrument = 0;
287                cmd.bChangeInstrument = false;
288            }
289            {
290                instrument_change_command_t& cmd = InstrumentChangeCommand.SwitchConfig();
291                cmd.pDimRegionsInUse = new RTList< ::gig::DimensionRegion*>(pEngine->pDimRegionPool[1]);
292                cmd.pInstrument = 0;
293                cmd.bChangeInstrument = false;
294            }
295    
296          for (uint i = 0; i < 128; i++) {          for (uint i = 0; i < 128; i++) {
297              pMIDIKeyInfo[i].pActiveVoices = new RTList<Voice>(pEngine->pVoicePool);              pMIDIKeyInfo[i].pActiveVoices = new RTList<Voice>(pEngine->pVoicePool);
298              pMIDIKeyInfo[i].pEvents       = new RTList<Event>(pEngine->pEventPool);              pMIDIKeyInfo[i].pEvents       = new RTList<Event>(pEngine->pEventPool);
# Line 282  namespace LinuxSampler { namespace gig { Line 309  namespace LinuxSampler { namespace gig {
309              pChannelLeft  = new AudioChannel(0, pAudioOut->MaxSamplesPerCycle());              pChannelLeft  = new AudioChannel(0, pAudioOut->MaxSamplesPerCycle());
310              pChannelRight = new AudioChannel(1, pAudioOut->MaxSamplesPerCycle());              pChannelRight = new AudioChannel(1, pAudioOut->MaxSamplesPerCycle());
311          }          }
312            if (pEngine->EngineDisabled.GetUnsafe()) pEngine->Enable();
313          MidiInputPort::AddSysexListener(pEngine);          MidiInputPort::AddSysexListener(pEngine);
314      }      }
315    
316      void EngineChannel::DisconnectAudioOutputDevice() {      void EngineChannel::DisconnectAudioOutputDevice() {
317          if (pEngine) { // if clause to prevent disconnect loops          if (pEngine) { // if clause to prevent disconnect loops
318    
319                // delete the structures used for instrument change
320                RTList< ::gig::DimensionRegion*>* d = InstrumentChangeCommand.GetConfigForUpdate().pDimRegionsInUse;
321                if (d) delete d;
322                EngineChannel::instrument_change_command_t& cmd = InstrumentChangeCommand.SwitchConfig();
323                d = cmd.pDimRegionsInUse;
324    
325                if (cmd.pInstrument) {
326                    // release the currently loaded instrument
327                    Engine::instruments.HandBackInstrument(cmd.pInstrument, this, d);
328                }
329                if (d) delete d;
330    
331                // release all active dimension regions to resource
332                // manager
333                RTList<uint>::Iterator iuiKey = pActiveKeys->first();
334                RTList<uint>::Iterator end    = pActiveKeys->end();
335                while (iuiKey != end) { // iterate through all active keys
336                    midi_key_info_t* pKey = &pMIDIKeyInfo[*iuiKey];
337                    ++iuiKey;
338    
339                    RTList<Voice>::Iterator itVoice     = pKey->pActiveVoices->first();
340                    RTList<Voice>::Iterator itVoicesEnd = pKey->pActiveVoices->end();
341                    for (; itVoice != itVoicesEnd; ++itVoice) { // iterate through all voices on this key
342                        Engine::instruments.HandBackDimReg(itVoice->pDimRgn);
343                    }
344                }
345    
346              ResetInternal();              ResetInternal();
347              if (pEvents) {              if (pEvents) {
348                  delete pEvents;                  delete pEvents;
# Line 338  namespace LinuxSampler { namespace gig { Line 394  namespace LinuxSampler { namespace gig {
394              default:              default:
395                  throw AudioOutputException("Invalid engine audio channel " + ToString(EngineAudioChannel));                  throw AudioOutputException("Invalid engine audio channel " + ToString(EngineAudioChannel));
396          }          }
397    
398            bStatusChanged = true;
399      }      }
400    
401      int EngineChannel::OutputChannel(uint EngineAudioChannel) {      int EngineChannel::OutputChannel(uint EngineAudioChannel) {
# Line 390  namespace LinuxSampler { namespace gig { Line 448  namespace LinuxSampler { namespace gig {
448          }          }
449          fxSends.push_back(pFxSend);          fxSends.push_back(pFxSend);
450          if (pEngine) pEngine->Enable();          if (pEngine) pEngine->Enable();
451            fireFxSendCountChanged(iSamplerChannelIndex, GetFxSendCount());
452    
453          return pFxSend;          return pFxSend;
454      }      }
455    
# Line 427  namespace LinuxSampler { namespace gig { Line 487  namespace LinuxSampler { namespace gig {
487              }              }
488          }          }
489          if (pEngine) pEngine->Enable();          if (pEngine) pEngine->Enable();
490            fireFxSendCountChanged(iSamplerChannelIndex, GetFxSendCount());
491      }      }
492    
493      /**      /**
# Line 629  namespace LinuxSampler { namespace gig { Line 690  namespace LinuxSampler { namespace gig {
690          Pitch          = 0;          Pitch          = 0;
691          SustainPedal   = false;          SustainPedal   = false;
692          SostenutoPedal = false;          SostenutoPedal = false;
693          GlobalVolume   = CONFIG_GLOBAL_ATTENUATION;          GlobalVolume   = 1.0f;
694          MidiVolume     = 1.0;          MidiVolume     = 1.0;
695          GlobalPanLeft  = 1.0f;          GlobalPanLeft  = 1.0f;
696          GlobalPanRight = 1.0f;          GlobalPanRight = 1.0f;
697            GlobalTranspose = 0;
698          // set all MIDI controller values to zero          // set all MIDI controller values to zero
699          memset(ControllerTable, 0x00, 129);          memset(ControllerTable, 0x00, 129);
700            // reset all FX Send levels
701            for (
702                std::vector<FxSend*>::iterator iter = fxSends.begin();
703                iter != fxSends.end(); iter++
704            ) {
705                (*iter)->Reset();
706            }
707      }      }
708    
709      /**      /**
# Line 688  namespace LinuxSampler { namespace gig { Line 757  namespace LinuxSampler { namespace gig {
757                  if (pEngine && pEngine->pAudioOutputDevice) {                  if (pEngine && pEngine->pAudioOutputDevice) {
758                      // fallback to render directly to the AudioOutputDevice's buffer                      // fallback to render directly to the AudioOutputDevice's buffer
759                      pChannelRight = pEngine->pAudioOutputDevice->Channel(AudioDeviceChannelRight);                      pChannelRight = pEngine->pAudioOutputDevice->Channel(AudioDeviceChannelRight);
760                  } else pChannelRight = NULL;                  } else pChannelRight = NULL;
761              }              }
762          }          }
763          for (int i = 0; i < fxSends.size(); i++) delete fxSends[i];          for (int i = 0; i < fxSends.size(); i++) delete fxSends[i];
Legend:
Removed from v.1001  
changed lines
  Added in v.1646
  ViewVC Help
Powered by ViewVC