/[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 1748 by persson, Sun Jun 22 14:46:46 2008 UTC revision 1860 by schoenebeck, Wed Mar 11 18:23:35 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 291  namespace LinuxSampler { namespace gig { Line 292  namespace LinuxSampler { namespace gig {
292          // make sure that the engine does not get any sysex messages          // make sure that the engine does not get any sysex messages
293          // while it's reseting          // while it's reseting
294          bool sysexDisabled = MidiInputPort::RemoveSysexListener(this);          bool sysexDisabled = MidiInputPort::RemoveSysexListener(this);
295          ActiveVoiceCount    = 0;          SetVoiceCount(0);
296          ActiveVoiceCountMax = 0;          ActiveVoiceCountMax = 0;
297    
298          // reset voice stealing parameters          // reset voice stealing parameters
# Line 342  namespace LinuxSampler { namespace gig { Line 343  namespace LinuxSampler { namespace gig {
343       * @param pAudioOut - audio output device to connect to       * @param pAudioOut - audio output device to connect to
344       */       */
345      void Engine::Connect(AudioOutputDevice* pAudioOut) {      void Engine::Connect(AudioOutputDevice* pAudioOut) {
346            // caution: don't ignore if connecting to the same device here,
347            // because otherwise SetMaxDiskStreams() implementation won't work anymore!
348    
349          pAudioOutputDevice = pAudioOut;          pAudioOutputDevice = pAudioOut;
350    
351          ResetInternal();          ResetInternal();
# Line 380  namespace LinuxSampler { namespace gig { Line 384  namespace LinuxSampler { namespace gig {
384              delete this->pDiskThread;              delete this->pDiskThread;
385              dmsg(1,("OK\n"));              dmsg(1,("OK\n"));
386          }          }
387          this->pDiskThread = new DiskThread(((pAudioOut->MaxSamplesPerCycle() << CONFIG_MAX_PITCH) << 1) + 6, //FIXME: assuming stereo          this->pDiskThread =
388                                             &instruments);              new DiskThread(
389                    iMaxDiskStreams,
390                    ((pAudioOut->MaxSamplesPerCycle() << CONFIG_MAX_PITCH) << 1) + 6, //FIXME: assuming stereo
391                    &instruments
392                );
393    
394          if (!pDiskThread) {          if (!pDiskThread) {
395              dmsg(0,("gig::Engine  new diskthread = NULL\n"));              dmsg(0,("gig::Engine  new diskthread = NULL\n"));
396              exit(EXIT_FAILURE);              exit(EXIT_FAILURE);
# Line 407  namespace LinuxSampler { namespace gig { Line 416  namespace LinuxSampler { namespace gig {
416                  exit(EXIT_FAILURE);                  exit(EXIT_FAILURE);
417              }              }
418          }          }
419            pVoicePool->clear();
420      }      }
421    
422      /**      /**
# Line 573  namespace LinuxSampler { namespace gig { Line 583  namespace LinuxSampler { namespace gig {
583          // return if engine disabled          // return if engine disabled
584          if (EngineDisabled.Pop()) {          if (EngineDisabled.Pop()) {
585              dmsg(5,("gig::Engine: engine disabled (val=%d)\n",EngineDisabled.GetUnsafe()));              dmsg(5,("gig::Engine: engine disabled (val=%d)\n",EngineDisabled.GetUnsafe()));
586                EngineDisabled.RttDone();
587              return 0;              return 0;
588          }          }
589    
# Line 583  namespace LinuxSampler { namespace gig { Line 594  namespace LinuxSampler { namespace gig {
594          // 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)
595          pEventGenerator->UpdateFragmentTime(Samples);          pEventGenerator->UpdateFragmentTime(Samples);
596    
597          // 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
598          // in each audio fragment. All subsequent request for spawning new          // in each audio fragment. All subsequent request for spawning new
599          // voices in the same audio fragment will be ignored.          // voices in the same audio fragment will be ignored.
600          VoiceSpawnsLeft = CONFIG_MAX_VOICES;          VoiceSpawnsLeft = MaxVoices();
601    
602          // 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
603          // (these are usually just SysEx messages)          // (these are usually just SysEx messages)
# Line 685  namespace LinuxSampler { namespace gig { Line 696  namespace LinuxSampler { namespace gig {
696          pVoiceStealingQueue->clear();          pVoiceStealingQueue->clear();
697    
698          // just some statistics about this engine instance          // just some statistics about this engine instance
699          ActiveVoiceCount = ActiveVoiceCountTemp;          SetVoiceCount(ActiveVoiceCountTemp);
700          if (ActiveVoiceCount > ActiveVoiceCountMax) ActiveVoiceCountMax = ActiveVoiceCount;          if (VoiceCount() > ActiveVoiceCountMax) ActiveVoiceCountMax = VoiceCount();
701    
702          // in case regions were previously suspended and we killed voices          // in case regions were previously suspended and we killed voices
703          // with disk streams due to that, check if those streams have finally          // with disk streams due to that, check if those streams have finally
# Line 698  namespace LinuxSampler { namespace gig { Line 709  namespace LinuxSampler { namespace gig {
709          }          }
710          FrameTime += Samples;          FrameTime += Samples;
711    
712            EngineDisabled.RttDone();
713          return 0;          return 0;
714      }      }
715    
# Line 784  namespace LinuxSampler { namespace gig { Line 796  namespace LinuxSampler { namespace gig {
796                      voiceCount++;                      voiceCount++;
797    
798                      if (itVoice->PlaybackState == Voice::playback_state_disk) {                      if (itVoice->PlaybackState == Voice::playback_state_disk) {
799                          if ((itVoice->DiskStreamRef).State == Stream::state_active) streamCount++;                          if ((itVoice->DiskStreamRef).State != Stream::state_unused) streamCount++;
800                      }                      }
801                  }  else { // voice reached end, is now inactive                  }  else { // voice reached end, is now inactive
802                      FreeVoice(pEngineChannel, itVoice); // remove voice from the list of active voices                      FreeVoice(pEngineChannel, itVoice); // remove voice from the list of active voices
# Line 825  namespace LinuxSampler { namespace gig { Line 837  namespace LinuxSampler { namespace gig {
837                      pEngineChannel->SetVoiceCount(pEngineChannel->GetVoiceCount() + 1);                      pEngineChannel->SetVoiceCount(pEngineChannel->GetVoiceCount() + 1);
838    
839                      if (itNewVoice->PlaybackState == Voice::playback_state_disk) {                      if (itNewVoice->PlaybackState == Voice::playback_state_disk) {
840                          if (itNewVoice->DiskStreamRef.State == Stream::state_active) {                          if (itNewVoice->DiskStreamRef.State != Stream::state_unused) {
841                              pEngineChannel->SetDiskStreamCount(pEngineChannel->GetDiskStreamCount() + 1);                              pEngineChannel->SetDiskStreamCount(pEngineChannel->GetDiskStreamCount() + 1);
842                          }                          }
843                      }                      }
# Line 953  namespace LinuxSampler { namespace gig { Line 965  namespace LinuxSampler { namespace gig {
965       *       *
966       *  @param pData - pointer to sysex data       *  @param pData - pointer to sysex data
967       *  @param Size  - lenght of sysex data (in bytes)       *  @param Size  - lenght of sysex data (in bytes)
968         *  @param pSender - the MIDI input port on which the SysEx message was
969         *                   received
970       */       */
971      void Engine::SendSysex(void* pData, uint Size) {      void Engine::SendSysex(void* pData, uint Size, MidiInputPort* pSender) {
972          Event event             = pEventGenerator->CreateEvent();          Event event             = pEventGenerator->CreateEvent();
973          event.Type              = Event::type_sysex;          event.Type              = Event::type_sysex;
974          event.Param.Sysex.Size  = Size;          event.Param.Sysex.Size  = Size;
975          event.pEngineChannel    = NULL; // as Engine global event          event.pEngineChannel    = NULL; // as Engine global event
976            event.pMidiInputPort    = pSender;
977          if (pEventQueue->write_space() > 0) {          if (pEventQueue->write_space() > 0) {
978              if (pSysexBuffer->write_space() >= Size) {              if (pSysexBuffer->write_space() >= Size) {
979                  // copy sysex data to input buffer                  // copy sysex data to input buffer
# Line 1901  namespace LinuxSampler { namespace gig { Line 1916  namespace LinuxSampler { namespace gig {
1916                  switch (sub_id1) {                  switch (sub_id1) {
1917                      case 0x04: // Device Control                      case 0x04: // Device Control
1918                          switch (sub_id2) {                          switch (sub_id2) {
1919                              case 0x01: // Master Volume                              case 0x01: { // Master Volume
1920                                  GLOBAL_VOLUME =                                  const double volume =
1921                                      double((uint(val_msb)<<7) | uint(val_lsb)) / 16383.0;                                      double((uint(val_msb)<<7) | uint(val_lsb)) / 16383.0;
1922                                    #if CONFIG_MASTER_VOLUME_SYSEX_BY_PORT
1923                                    // apply volume to all sampler channels that
1924                                    // are connected to the same MIDI input port
1925                                    // this sysex message arrived on
1926                                    for (int i = 0; i < engineChannels.size(); ++i) {
1927                                        EngineChannel* pEngineChannel = engineChannels[i];
1928                                        if (pEngineChannel->GetMidiInputPort() ==
1929                                            itSysexEvent->pMidiInputPort)
1930                                        {
1931                                            pEngineChannel->Volume(volume);
1932                                        }
1933                                    }
1934                                    #else
1935                                    // apply volume globally to the whole sampler
1936                                    GLOBAL_VOLUME = volume;
1937                                    #endif // CONFIG_MASTER_VOLUME_SYSEX_BY_PORT
1938                                  break;                                  break;
1939                                }
1940                          }                          }
1941                          break;                          break;
1942                  }                  }
# Line 1925  namespace LinuxSampler { namespace gig { Line 1957  namespace LinuxSampler { namespace gig {
1957                  if (reader.read(&addr[0], 3) != 3) goto free_sysex_data;                  if (reader.read(&addr[0], 3) != 3) goto free_sysex_data;
1958                  if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters                  if (addr[0] == 0x40 && addr[1] == 0x00) { // System Parameters
1959                      dmsg(3,("\tSystem Parameter\n"));                      dmsg(3,("\tSystem Parameter\n"));
1960                        if (addr[2] == 0x7f) { // GS reset
1961                            for (int i = 0; i < engineChannels.size(); ++i) {
1962                                EngineChannel* pEngineChannel = engineChannels[i];
1963                                if (pEngineChannel->GetMidiInputPort() == itSysexEvent->pMidiInputPort) {
1964                                    KillAllVoices(pEngineChannel, itSysexEvent);
1965                                    pEngineChannel->ResetControllers();
1966                                }
1967                            }
1968                        }
1969                  }                  }
1970                  else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters                  else if (addr[0] == 0x40 && addr[1] == 0x01) { // Common Parameters
1971                      dmsg(3,("\tCommon Parameter\n"));                      dmsg(3,("\tCommon Parameter\n"));
# Line 1946  namespace LinuxSampler { namespace gig { Line 1987  namespace LinuxSampler { namespace gig {
1987                              dmsg(3,("\t\t\tNew scale applied.\n"));                              dmsg(3,("\t\t\tNew scale applied.\n"));
1988                              break;                              break;
1989                          }                          }
1990                            case 0x15: { // chromatic / drumkit mode
1991                                dmsg(3,("\t\tMIDI Instrument Map Switch\n"));
1992                                uint8_t part = addr[1] & 0x0f;
1993                                uint8_t map;
1994                                if (!reader.pop(&map)) goto free_sysex_data;
1995                                for (int i = 0; i < engineChannels.size(); ++i) {
1996                                    EngineChannel* pEngineChannel = engineChannels[i];
1997                                    if (
1998                                        (pEngineChannel->midiChannel == part ||
1999                                         pEngineChannel->midiChannel == midi_chan_all) &&
2000                                         pEngineChannel->GetMidiInputPort() == itSysexEvent->pMidiInputPort
2001                                    ) {
2002                                        try {
2003                                            pEngineChannel->SetMidiInstrumentMap(map);
2004                                        } catch (Exception e) {
2005                                            dmsg(2,("\t\t\tCould not apply MIDI instrument map %d to part %d: %s\n", map, part, e.Message().c_str()));
2006                                            goto free_sysex_data;
2007                                        } catch (...) {
2008                                            dmsg(2,("\t\t\tCould not apply MIDI instrument map %d to part %d (unknown exception)\n", map, part));
2009                                            goto free_sysex_data;
2010                                        }
2011                                    }
2012                                }
2013                                dmsg(3,("\t\t\tApplied MIDI instrument map %d to part %d.\n", map, part));
2014                                break;
2015                            }
2016                      }                      }
2017                  }                  }
2018                  else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x20) { // Part Parameters (2)                  else if (addr[0] == 0x40 && (addr[1] & 0xf0) == 0x20) { // Part Parameters (2)
# Line 2052  namespace LinuxSampler { namespace gig { Line 2119  namespace LinuxSampler { namespace gig {
2119      }      }
2120    
2121      uint Engine::VoiceCount() {      uint Engine::VoiceCount() {
2122          return ActiveVoiceCount;          return atomic_read(&ActiveVoiceCount);
2123        }
2124    
2125        void Engine::SetVoiceCount(uint Count) {
2126            atomic_set(&ActiveVoiceCount, Count);
2127      }      }
2128    
2129      uint Engine::VoiceCountMax() {      uint Engine::VoiceCountMax() {
2130          return ActiveVoiceCountMax;          return ActiveVoiceCountMax;
2131      }      }
2132    
2133        int Engine::MaxVoices() {
2134            return pVoicePool->poolSize();
2135        }
2136    
2137        void Engine::SetMaxVoices(int iVoices) throw (Exception) {
2138            if (iVoices < 1)
2139                throw Exception("Maximum voices for an engine cannot be set lower than 1");
2140    
2141            SuspendAll();
2142    
2143            // NOTE: we need to clear pDimRegionsInUse before deleting pDimRegionPool,
2144            // otherwise memory corruption will occur if there are active voices (see bug #118)
2145            for (int iChannel = 0; iChannel < engineChannels.size(); iChannel++) {
2146                engineChannels[iChannel]->ClearDimRegionsInUse();
2147            }
2148    
2149            if (pDimRegionPool[0]) delete pDimRegionPool[0];
2150            if (pDimRegionPool[1]) delete pDimRegionPool[1];
2151    
2152            pDimRegionPool[0] = new Pool< ::gig::DimensionRegion*>(iVoices);
2153            pDimRegionPool[1] = new Pool< ::gig::DimensionRegion*>(iVoices);
2154    
2155            for (int iChannel = 0; iChannel < engineChannels.size(); iChannel++) {
2156                engineChannels[iChannel]->ResetDimRegionsInUse();
2157            }
2158    
2159            try {
2160                pVoicePool->resizePool(iVoices);
2161            } catch (...) {
2162                throw Exception("FATAL: Could not resize voice pool!");
2163            }
2164    
2165            for (RTList<Voice>::Iterator iterVoice = pVoicePool->allocAppend(); iterVoice == pVoicePool->last(); iterVoice = pVoicePool->allocAppend()) {
2166                iterVoice->SetEngine(this);
2167                iterVoice->pDiskThread = this->pDiskThread;
2168            }
2169            pVoicePool->clear();
2170    
2171            ResumeAll();
2172        }
2173    
2174      bool Engine::DiskStreamSupported() {      bool Engine::DiskStreamSupported() {
2175          return true;          return true;
2176      }      }
2177    
2178      uint Engine::DiskStreamCount() {      uint Engine::DiskStreamCount() {
2179          return (pDiskThread) ? pDiskThread->ActiveStreamCount : 0;          return (pDiskThread) ? pDiskThread->GetActiveStreamCount() : 0;
2180      }      }
2181    
2182      uint Engine::DiskStreamCountMax() {      uint Engine::DiskStreamCountMax() {
2183          return (pDiskThread) ? pDiskThread->ActiveStreamCountMax : 0;          return (pDiskThread) ? pDiskThread->ActiveStreamCountMax : 0;
2184      }      }
2185    
2186        int Engine::MaxDiskStreams() {
2187            return iMaxDiskStreams;
2188        }
2189    
2190        void Engine::SetMaxDiskStreams(int iStreams) throw (Exception) {
2191            if (iStreams < 0)
2192                throw Exception("Maximum disk streams for an engine cannot be set lower than 0");
2193    
2194            SuspendAll();
2195    
2196            iMaxDiskStreams = iStreams;
2197    
2198            // reconnect to audio output device, because that will automatically
2199            // recreate the disk thread with the required amount of streams
2200            if (pAudioOutputDevice) Connect(pAudioOutputDevice);
2201    
2202            ResumeAll();
2203        }
2204    
2205      String Engine::DiskStreamBufferFillBytes() {      String Engine::DiskStreamBufferFillBytes() {
2206          return pDiskThread->GetBufferFillBytes();          return pDiskThread->GetBufferFillBytes();
2207      }      }
# Line 2088  namespace LinuxSampler { namespace gig { Line 2219  namespace LinuxSampler { namespace gig {
2219      }      }
2220    
2221      String Engine::Version() {      String Engine::Version() {
2222          String s = "$Revision: 1.93 $";          String s = "$Revision: 1.101 $";
2223          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
2224      }      }
2225    
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