/[svn]/linuxsampler/trunk/src/engines/gig/Engine.cpp
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Diff of /linuxsampler/trunk/src/engines/gig/Engine.cpp

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revision 1789 by iliev, Sat Nov 1 19:01:27 2008 UTC revision 1893 by schoenebeck, Sat May 2 18:57:49 2009 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) 2005-2008 Christian Schoenebeck                         *   *   Copyright (C) 2005-2009 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 107  namespace LinuxSampler { namespace gig { Line 107  namespace LinuxSampler { namespace gig {
107          pSysexBuffer       = new RingBuffer<uint8_t,false>(CONFIG_SYSEX_BUFFER_SIZE, 0);          pSysexBuffer       = new RingBuffer<uint8_t,false>(CONFIG_SYSEX_BUFFER_SIZE, 0);
108          pEventQueue        = new RingBuffer<Event,false>(CONFIG_MAX_EVENTS_PER_FRAGMENT, 0);          pEventQueue        = new RingBuffer<Event,false>(CONFIG_MAX_EVENTS_PER_FRAGMENT, 0);
109          pEventPool         = new Pool<Event>(CONFIG_MAX_EVENTS_PER_FRAGMENT);          pEventPool         = new Pool<Event>(CONFIG_MAX_EVENTS_PER_FRAGMENT);
110          pVoicePool         = new Pool<Voice>(CONFIG_MAX_VOICES);          pVoicePool         = new Pool<Voice>(GLOBAL_MAX_VOICES);
111          pDimRegionPool[0]  = new Pool< ::gig::DimensionRegion*>(CONFIG_MAX_VOICES);          pDimRegionPool[0]  = new Pool< ::gig::DimensionRegion*>(GLOBAL_MAX_VOICES);
112          pDimRegionPool[1]  = new Pool< ::gig::DimensionRegion*>(CONFIG_MAX_VOICES);          pDimRegionPool[1]  = new Pool< ::gig::DimensionRegion*>(GLOBAL_MAX_VOICES);
113          pVoiceStealingQueue = new RTList<Event>(pEventPool);          pVoiceStealingQueue = new RTList<Event>(pEventPool);
114          pGlobalEvents      = new RTList<Event>(pEventPool);          pGlobalEvents      = new RTList<Event>(pEventPool);
115            iMaxDiskStreams    = GLOBAL_MAX_STREAMS;
116    
117          for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) {          for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) {
118              iterVoice->SetEngine(this);              iterVoice->SetEngine(this);
# Line 211  namespace LinuxSampler { namespace gig { Line 212  namespace LinuxSampler { namespace gig {
212                      if (hStream != Stream::INVALID_HANDLE) { // voice actually used a stream                      if (hStream != Stream::INVALID_HANDLE) { // voice actually used a stream
213                          iPendingStreamDeletions++;                          iPendingStreamDeletions++;
214                      }                      }
215                        // free the voice to the voice pool and update key info
216                        FreeVoice(pEngineChannel, itVoice);
217                  }                  }
218              }              }
219          }          }
# Line 342  namespace LinuxSampler { namespace gig { Line 345  namespace LinuxSampler { namespace gig {
345       * @param pAudioOut - audio output device to connect to       * @param pAudioOut - audio output device to connect to
346       */       */
347      void Engine::Connect(AudioOutputDevice* pAudioOut) {      void Engine::Connect(AudioOutputDevice* pAudioOut) {
348            // caution: don't ignore if connecting to the same device here,
349            // because otherwise SetMaxDiskStreams() implementation won't work anymore!
350    
351          pAudioOutputDevice = pAudioOut;          pAudioOutputDevice = pAudioOut;
352    
353          ResetInternal();          ResetInternal();
# Line 380  namespace LinuxSampler { namespace gig { Line 386  namespace LinuxSampler { namespace gig {
386              delete this->pDiskThread;              delete this->pDiskThread;
387              dmsg(1,("OK\n"));              dmsg(1,("OK\n"));
388          }          }
389          this->pDiskThread = new DiskThread(((pAudioOut->MaxSamplesPerCycle() << CONFIG_MAX_PITCH) << 1) + 6, //FIXME: assuming stereo          this->pDiskThread =
390                                             &instruments);              new DiskThread(
391                    iMaxDiskStreams,
392                    ((pAudioOut->MaxSamplesPerCycle() << CONFIG_MAX_PITCH) << 1) + 6, //FIXME: assuming stereo
393                    &instruments
394                );
395    
396          if (!pDiskThread) {          if (!pDiskThread) {
397              dmsg(0,("gig::Engine  new diskthread = NULL\n"));              dmsg(0,("gig::Engine  new diskthread = NULL\n"));
398              exit(EXIT_FAILURE);              exit(EXIT_FAILURE);
# Line 407  namespace LinuxSampler { namespace gig { Line 418  namespace LinuxSampler { namespace gig {
418                  exit(EXIT_FAILURE);                  exit(EXIT_FAILURE);
419              }              }
420          }          }
421            pVoicePool->clear();
422      }      }
423    
424      /**      /**
# Line 433  namespace LinuxSampler { namespace gig { Line 445  namespace LinuxSampler { namespace gig {
445                          if (hStream != Stream::INVALID_HANDLE) { // voice actually used a stream                          if (hStream != Stream::INVALID_HANDLE) { // voice actually used a stream
446                              iPendingStreamDeletions++;                              iPendingStreamDeletions++;
447                          }                          }
448                            //NOTE: maybe we should call FreeVoice() here, shouldn't cause a harm though I think, since the voices should be freed by RenderActiveVoices() in the render loop, they are probably just freed a bit later than they could/should be
449                      }                      }
450                  }                  }
451              }              }
# Line 584  namespace LinuxSampler { namespace gig { Line 597  namespace LinuxSampler { namespace gig {
597          // update time of start and end of this audio fragment (as events' time stamps relate to this)          // update time of start and end of this audio fragment (as events' time stamps relate to this)
598          pEventGenerator->UpdateFragmentTime(Samples);          pEventGenerator->UpdateFragmentTime(Samples);
599    
600          // We only allow a maximum of CONFIG_MAX_VOICES voices to be spawned          // We only allow the given maximum number of voices to be spawned
601          // in each audio fragment. All subsequent request for spawning new          // in each audio fragment. All subsequent request for spawning new
602          // voices in the same audio fragment will be ignored.          // voices in the same audio fragment will be ignored.
603          VoiceSpawnsLeft = CONFIG_MAX_VOICES;          VoiceSpawnsLeft = MaxVoices();
604    
605          // get all events from the engine's global input event queue which belong to the current fragment          // get all events from the engine's global input event queue which belong to the current fragment
606          // (these are usually just SysEx messages)          // (these are usually just SysEx messages)
# Line 1947  namespace LinuxSampler { namespace gig { Line 1960  namespace LinuxSampler { namespace gig {
1960                  if (reader.read(&addr[0], 3) != 3) goto free_sysex_data;                  if (reader.read(&addr[0], 3) != 3) goto free_sysex_data;
1961                  if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters                  if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters
1962                      dmsg(3,("\tSystem Parameter\n"));                      dmsg(3,("\tSystem Parameter\n"));
1963                        if (addr[2] == 0x7f) { // GS reset
1964                            for (int i = 0; i < engineChannels.size(); ++i) {
1965                                EngineChannel* pEngineChannel = engineChannels[i];
1966                                if (pEngineChannel->GetMidiInputPort() == itSysexEvent->pMidiInputPort) {
1967                                    KillAllVoices(pEngineChannel, itSysexEvent);
1968                                    pEngineChannel->ResetControllers();
1969                                }
1970                            }
1971                        }
1972                  }                  }
1973                  else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters                  else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters
1974                      dmsg(3,("\tCommon Parameter\n"));                      dmsg(3,("\tCommon Parameter\n"));
# Line 2111  namespace LinuxSampler { namespace gig { Line 2133  namespace LinuxSampler { namespace gig {
2133          return ActiveVoiceCountMax;          return ActiveVoiceCountMax;
2134      }      }
2135    
2136        int Engine::MaxVoices() {
2137            return pVoicePool->poolSize();
2138        }
2139    
2140        void Engine::SetMaxVoices(int iVoices) throw (Exception) {
2141            if (iVoices < 1)
2142                throw Exception("Maximum voices for an engine cannot be set lower than 1");
2143    
2144            SuspendAll();
2145    
2146            // NOTE: we need to clear pDimRegionsInUse before deleting pDimRegionPool,
2147            // otherwise memory corruption will occur if there are active voices (see bug #118)
2148            for (int iChannel = 0; iChannel < engineChannels.size(); iChannel++) {
2149                engineChannels[iChannel]->ClearDimRegionsInUse();
2150            }
2151    
2152            if (pDimRegionPool[0]) delete pDimRegionPool[0];
2153            if (pDimRegionPool[1]) delete pDimRegionPool[1];
2154    
2155            pDimRegionPool[0] = new Pool< ::gig::DimensionRegion*>(iVoices);
2156            pDimRegionPool[1] = new Pool< ::gig::DimensionRegion*>(iVoices);
2157    
2158            for (int iChannel = 0; iChannel < engineChannels.size(); iChannel++) {
2159                engineChannels[iChannel]->ResetDimRegionsInUse();
2160            }
2161    
2162            try {
2163                pVoicePool->resizePool(iVoices);
2164            } catch (...) {
2165                throw Exception("FATAL: Could not resize voice pool!");
2166            }
2167    
2168            for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) {
2169                iterVoice->SetEngine(this);
2170                iterVoice->pDiskThread = this->pDiskThread;
2171            }
2172            pVoicePool->clear();
2173    
2174            ResumeAll();
2175        }
2176    
2177      bool Engine::DiskStreamSupported() {      bool Engine::DiskStreamSupported() {
2178          return true;          return true;
2179      }      }
# Line 2123  namespace LinuxSampler { namespace gig { Line 2186  namespace LinuxSampler { namespace gig {
2186          return (pDiskThread) ? pDiskThread->ActiveStreamCountMax : 0;          return (pDiskThread) ? pDiskThread->ActiveStreamCountMax : 0;
2187      }      }
2188    
2189        int Engine::MaxDiskStreams() {
2190            return iMaxDiskStreams;
2191        }
2192    
2193        void Engine::SetMaxDiskStreams(int iStreams) throw (Exception) {
2194            if (iStreams < 0)
2195                throw Exception("Maximum disk streams for an engine cannot be set lower than 0");
2196    
2197            SuspendAll();
2198    
2199            iMaxDiskStreams = iStreams;
2200    
2201            // reconnect to audio output device, because that will automatically
2202            // recreate the disk thread with the required amount of streams
2203            if (pAudioOutputDevice) Connect(pAudioOutputDevice);
2204    
2205            ResumeAll();
2206        }
2207    
2208      String Engine::DiskStreamBufferFillBytes() {      String Engine::DiskStreamBufferFillBytes() {
2209          return pDiskThread->GetBufferFillBytes();          return pDiskThread->GetBufferFillBytes();
2210      }      }
# Line 2140  namespace LinuxSampler { namespace gig { Line 2222  namespace LinuxSampler { namespace gig {
2222      }      }
2223    
2224      String Engine::Version() {      String Engine::Version() {
2225          String s = "$Revision: 1.98 $";          String s = "$Revision: 1.102 $";
2226          return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword          return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword
2227      }      }
2228    
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