/[svn]/linuxsampler/trunk/src/engines/gig/InstrumentResourceManager.cpp
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revision 1212 by schoenebeck, Tue May 29 23:59:36 2007 UTC revision 1662 by schoenebeck, Sun Feb 3 16:21:38 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 - 2007 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 25  Line 25 
25    
26  #include "InstrumentResourceManager.h"  #include "InstrumentResourceManager.h"
27    
28  #include "../InstrumentEditorFactory.h"  #include "../../common/global_private.h"
29    #include "../../plugins/InstrumentEditorFactory.h"
30    
31  // We need to know the maximum number of sample points which are going to  // We need to know the maximum number of sample points which are going to
32  // be processed for each render cycle of the audio output driver, to know  // be processed for each render cycle of the audio output driver, to know
# Line 66  namespace LinuxSampler { namespace gig { Line 67  namespace LinuxSampler { namespace gig {
67    
68          // the instrument we borrowed on behalf of the editor          // the instrument we borrowed on behalf of the editor
69          ::gig::Instrument* pInstrument;          ::gig::Instrument* pInstrument;
70            // the instrument editor we work on behalf
71            InstrumentEditor* pEditor;
72      };      };
73    
74      /**      /**
# Line 106  namespace LinuxSampler { namespace gig { Line 109  namespace LinuxSampler { namespace gig {
109          return res;          return res;
110      }      }
111    
112      String InstrumentResourceManager::GetInstrumentTypeName(instrument_id_t ID) {      String InstrumentResourceManager::GetInstrumentDataStructureName(instrument_id_t ID) {
113          return ::gig::libraryName();          return ::gig::libraryName();
114      }      }
115    
116      String InstrumentResourceManager::GetInstrumentTypeVersion(instrument_id_t ID) {      String InstrumentResourceManager::GetInstrumentDataStructureVersion(instrument_id_t ID) {
117          return ::gig::libraryVersion();          return ::gig::libraryVersion();
118      }      }
119    
120        std::vector<InstrumentResourceManager::instrument_id_t> InstrumentResourceManager::GetInstrumentFileContent(String File) throw (InstrumentManagerException) {
121            ::RIFF::File* riff = NULL;
122            ::gig::File*  gig  = NULL;
123            try {
124                std::vector<instrument_id_t> result;
125                riff = new ::RIFF::File(File);
126                gig  = new ::gig::File(riff);
127                gig->SetAutoLoad(false); // avoid time consuming samples scanning
128                for (int i = 0; gig->GetInstrument(i); i++) {
129                    instrument_id_t id;
130                    id.FileName = File;
131                    id.Index    = i;
132                    result.push_back(id);
133                }
134                if (gig)  delete gig;
135                if (riff) delete riff;
136                return result;
137            } catch (::RIFF::Exception e) {
138                if (gig)  delete gig;
139                if (riff) delete riff;
140                throw InstrumentManagerException(e.Message);
141            } catch (...) {
142                if (gig)  delete gig;
143                if (riff) delete riff;
144                throw InstrumentManagerException("Unknown exception while trying to parse '" + File + "'");
145            }
146        }
147    
148        InstrumentResourceManager::instrument_info_t InstrumentResourceManager::GetInstrumentInfo(instrument_id_t ID) throw (InstrumentManagerException) {
149            std::vector<instrument_id_t> result;
150            ::RIFF::File* riff = NULL;
151            ::gig::File*  gig  = NULL;
152            try {
153                riff = new ::RIFF::File(ID.FileName);
154                gig  = new ::gig::File(riff);
155                gig->SetAutoLoad(false); // avoid time consuming samples scanning
156                ::gig::Instrument* pInstrument = gig->GetInstrument(ID.Index);
157                if (!pInstrument) throw InstrumentManagerException("There is no instrument " + ToString(ID.Index) + " in " + ID.FileName);
158                instrument_info_t info;
159                if (gig->pVersion) {
160                    info.FormatVersion = ToString(gig->pVersion->major);
161                    info.Product = gig->pInfo->Product;
162                    info.Artists = gig->pInfo->Artists;
163                }
164                info.InstrumentName = pInstrument->pInfo->Name;
165                if (gig)  delete gig;
166                if (riff) delete riff;
167                return info;
168            } catch (::RIFF::Exception e) {
169                if (gig)  delete gig;
170                if (riff) delete riff;
171                throw InstrumentManagerException(e.Message);
172            } catch (...) {
173                if (gig)  delete gig;
174                if (riff) delete riff;
175                throw InstrumentManagerException("Unknown exception while trying to parse '" + ID.FileName + "'");
176            }
177        }
178    
179      void InstrumentResourceManager::LaunchInstrumentEditor(instrument_id_t ID) throw (InstrumentManagerException) {      void InstrumentResourceManager::LaunchInstrumentEditor(instrument_id_t ID) throw (InstrumentManagerException) {
180          const String sDataType    = GetInstrumentTypeName(ID);          const String sDataType    = GetInstrumentDataStructureName(ID);
181          const String sDataVersion = GetInstrumentTypeVersion(ID);          const String sDataVersion = GetInstrumentDataStructureVersion(ID);
182          // find instrument editors capable to handle given instrument          // find instrument editors capable to handle given instrument
183          std::vector<String> vEditors =          std::vector<String> vEditors =
184              InstrumentEditorFactory::MatchingEditors(sDataType, sDataVersion);              InstrumentEditorFactory::MatchingEditors(sDataType, sDataVersion);
# Line 128  namespace LinuxSampler { namespace gig { Line 190  namespace LinuxSampler { namespace gig {
190          dmsg(1,("Found matching editor '%s' for instrument ('%s', %d) having data structure ('%s','%s')\n",          dmsg(1,("Found matching editor '%s' for instrument ('%s', %d) having data structure ('%s','%s')\n",
191              vEditors[0].c_str(), ID.FileName.c_str(), ID.Index, sDataType.c_str(), sDataVersion.c_str()));              vEditors[0].c_str(), ID.FileName.c_str(), ID.Index, sDataType.c_str(), sDataVersion.c_str()));
192          InstrumentEditor* pEditor = InstrumentEditorFactory::Create(vEditors[0]);          InstrumentEditor* pEditor = InstrumentEditorFactory::Create(vEditors[0]);
193          // we want to know when you'll die X| (see OnInstrumentEditorQuit())          // register for receiving notifications from the instrument editor
194          pEditor->AddListener(this);          pEditor->AddListener(this);
195          // create a proxy that reacts on notification on behalf of the editor          // create a proxy that reacts on notification on behalf of the editor
196          InstrumentEditorProxy* pProxy = new InstrumentEditorProxy;          InstrumentEditorProxy* pProxy = new InstrumentEditorProxy;
# Line 136  namespace LinuxSampler { namespace gig { Line 198  namespace LinuxSampler { namespace gig {
198          ::gig::Instrument* pInstrument = Borrow(ID, pProxy);          ::gig::Instrument* pInstrument = Borrow(ID, pProxy);
199          // remember the proxy and instrument for this instrument editor          // remember the proxy and instrument for this instrument editor
200          pProxy->pInstrument = pInstrument;          pProxy->pInstrument = pInstrument;
201            pProxy->pEditor     = pEditor;
202          InstrumentEditorProxiesMutex.Lock();          InstrumentEditorProxiesMutex.Lock();
203          InstrumentEditorProxies[pEditor] = pProxy;          InstrumentEditorProxies.add(pProxy);
204          InstrumentEditorProxiesMutex.Unlock();          InstrumentEditorProxiesMutex.Unlock();
205          // launch the instrument editor for the given instrument          // launch the instrument editor for the given instrument
206          pEditor->Launch(pInstrument, sDataType, sDataVersion);          pEditor->Launch(pInstrument, sDataType, sDataVersion);
207    
208            // register the instrument editor as virtual MIDI device as well ...
209            VirtualMidiDevice* pVirtualMidiDevice =
210                dynamic_cast<VirtualMidiDevice*>(pEditor);
211            if (!pVirtualMidiDevice) {
212                std::cerr << "Instrument editor not a virtual MIDI device\n" << std::flush;
213                return;
214            }
215            // NOTE: for now connect the virtual MIDI keyboard of the instrument editor (if any) with all engine channels that have the same instrument as the editor was opened for ( other ideas ? )
216            Lock();
217            std::set<gig::EngineChannel*> engineChannels =
218                GetEngineChannelsUsing(pInstrument, false/*don't lock again*/);
219            std::set<gig::EngineChannel*>::iterator iter = engineChannels.begin();
220            std::set<gig::EngineChannel*>::iterator end  = engineChannels.end();
221            for (; iter != end; ++iter) (*iter)->Connect(pVirtualMidiDevice);
222            Unlock();
223      }      }
224    
225      /**      /**
# Line 152  namespace LinuxSampler { namespace gig { Line 231  namespace LinuxSampler { namespace gig {
231       */       */
232      void InstrumentResourceManager::OnInstrumentEditorQuit(InstrumentEditor* pSender) {      void InstrumentResourceManager::OnInstrumentEditorQuit(InstrumentEditor* pSender) {
233          dmsg(1,("InstrumentResourceManager: instrument editor quit, doing cleanup\n"));          dmsg(1,("InstrumentResourceManager: instrument editor quit, doing cleanup\n"));
234          // hand back instrument and free proxy  
235            ::gig::Instrument* pInstrument = NULL;
236            InstrumentEditorProxy* pProxy  = NULL;
237            int iProxyIndex                = -1;
238    
239            // first find the editor proxy entry for this editor
240          InstrumentEditorProxiesMutex.Lock();          InstrumentEditorProxiesMutex.Lock();
241          if (InstrumentEditorProxies.count(pSender)) {          for (int i = 0; i < InstrumentEditorProxies.size(); i++) {
242              InstrumentEditorProxy* pProxy =              InstrumentEditorProxy* pCurProxy =
243                  dynamic_cast<InstrumentEditorProxy*>(                  dynamic_cast<InstrumentEditorProxy*>(
244                      InstrumentEditorProxies[pSender]                      InstrumentEditorProxies[i]
245                  );                  );
246              InstrumentEditorProxies.erase(pSender);              if (pCurProxy->pEditor == pSender) {
247              InstrumentEditorProxiesMutex.Unlock();                  pProxy      = pCurProxy;
248              HandBack(pProxy->pInstrument, pProxy);                  iProxyIndex = i;
249              if (pProxy) delete pProxy;                  pInstrument = pCurProxy->pInstrument;
250                }
251            }
252            InstrumentEditorProxiesMutex.Unlock();
253    
254            if (!pProxy) {
255                std::cerr << "Eeeek, could not find instrument editor proxy, "
256                             "this is a bug!\n" << std::flush;
257                return;
258            }
259    
260            // now unregister editor as not being available as a virtual MIDI device anymore
261            VirtualMidiDevice* pVirtualMidiDevice =
262                dynamic_cast<VirtualMidiDevice*>(pSender);
263            if (pVirtualMidiDevice) {
264                Lock();
265                // NOTE: see note in LaunchInstrumentEditor()
266                std::set<gig::EngineChannel*> engineChannels =
267                    GetEngineChannelsUsing(pInstrument, false/*don't lock again*/);
268                std::set<gig::EngineChannel*>::iterator iter = engineChannels.begin();
269                std::set<gig::EngineChannel*>::iterator end  = engineChannels.end();
270                for (; iter != end; ++iter) (*iter)->Disconnect(pVirtualMidiDevice);
271                Unlock();
272          } else {          } else {
273                std::cerr << "Could not unregister editor as not longer acting as "
274                             "virtual MIDI device. Wasn't it registered?\n"
275                          << std::flush;
276            }
277    
278            // finally delete proxy entry and hand back instrument
279            if (pInstrument) {
280                InstrumentEditorProxiesMutex.Lock();
281                InstrumentEditorProxies.remove(iProxyIndex);
282              InstrumentEditorProxiesMutex.Unlock();              InstrumentEditorProxiesMutex.Unlock();
283              std::cerr << "Eeeek, could not find instrument editor proxy, this is a bug!\n" << std::flush;  
284                HandBack(pInstrument, pProxy);
285                delete pProxy;
286            }
287    
288            // Note that we don't need to free the editor here. As it
289            // derives from Thread, it will delete itself when the thread
290            // dies.
291        }
292    
293    #if 0 // currently unused :
294        /**
295         * Try to inform the respective instrument editor(s), that a note on
296         * event just occured. This method is called by the MIDI thread. If any
297         * obstacles are in the way (e.g. if a wait for an unlock would be
298         * required) we give up immediately, since the RT safeness of the MIDI
299         * thread has absolute priority.
300         */
301        void InstrumentResourceManager::TrySendNoteOnToEditors(uint8_t Key, uint8_t Velocity, ::gig::Instrument* pInstrument) {
302            const bool bGotLock = InstrumentEditorProxiesMutex.Trylock(); // naively assumes RT safe implementation
303            if (!bGotLock) return; // hell, forget it, not worth the hassle
304            for (int i = 0; i < InstrumentEditorProxies.size(); i++) {
305                InstrumentEditorProxy* pProxy =
306                    dynamic_cast<InstrumentEditorProxy*>(
307                        InstrumentEditorProxies[i]
308                    );
309                if (pProxy->pInstrument == pInstrument)
310                    pProxy->pEditor->SendNoteOnToDevice(Key, Velocity);
311            }
312            InstrumentEditorProxiesMutex.Unlock(); // naively assumes RT safe implementation
313        }
314    
315        /**
316         * Try to inform the respective instrument editor(s), that a note off
317         * event just occured. This method is called by the MIDI thread. If any
318         * obstacles are in the way (e.g. if a wait for an unlock would be
319         * required) we give up immediately, since the RT safeness of the MIDI
320         * thread has absolute priority.
321         */
322        void InstrumentResourceManager::TrySendNoteOffToEditors(uint8_t Key, uint8_t Velocity, ::gig::Instrument* pInstrument) {
323            const bool bGotLock = InstrumentEditorProxiesMutex.Trylock(); // naively assumes RT safe implementation
324            if (!bGotLock) return; // hell, forget it, not worth the hassle
325            for (int i = 0; i < InstrumentEditorProxies.size(); i++) {
326                InstrumentEditorProxy* pProxy =
327                    dynamic_cast<InstrumentEditorProxy*>(
328                        InstrumentEditorProxies[i]
329                    );
330                if (pProxy->pInstrument == pInstrument)
331                    pProxy->pEditor->SendNoteOffToDevice(Key, Velocity);
332            }
333            InstrumentEditorProxiesMutex.Unlock(); // naively assumes RT safe implementation
334        }
335    #endif // unused
336    
337        void InstrumentResourceManager::OnSamplesToBeRemoved(std::set<void*> Samples, InstrumentEditor* pSender) {
338            if (Samples.empty()) {
339                std::cerr << "gig::InstrumentResourceManager: WARNING, "
340                             "OnSamplesToBeRemoved() called with empty list, this "
341                             "is a bug!\n" << std::flush;
342                return;
343            }
344            // TODO: ATM we assume here that all samples are from the same file
345            ::gig::Sample* pFirstSample = (::gig::Sample*) *Samples.begin();
346            ::gig::File* pCriticalFile = dynamic_cast< ::gig::File*>(pFirstSample->GetParent());
347            // completely suspend all engines that use that same file
348            SuspendEnginesUsing(pCriticalFile);
349        }
350    
351        void InstrumentResourceManager::OnSamplesRemoved(InstrumentEditor* pSender) {
352            // resume all previously, completely suspended engines
353            // (we don't have to un-cache the removed samples here, since that is
354            // automatically done by the gig::Sample destructor)
355            ResumeAllEngines();
356        }
357    
358        void InstrumentResourceManager::OnDataStructureToBeChanged(void* pStruct, String sStructType, InstrumentEditor* pSender) {
359            //TODO: remove code duplication
360            if (sStructType == "gig::File") {
361                // completely suspend all engines that use that file
362                ::gig::File* pFile = (::gig::File*) pStruct;
363                SuspendEnginesUsing(pFile);
364            } else if (sStructType == "gig::Instrument") {
365                // completely suspend all engines that use that instrument
366                ::gig::Instrument* pInstrument = (::gig::Instrument*) pStruct;
367                SuspendEnginesUsing(pInstrument);
368            } else if (sStructType == "gig::Region") {
369                // only advice the engines to suspend the given region, so they'll
370                // only ignore that region (and probably already other suspended
371                // ones), but beside that continue normal playback
372                ::gig::Region* pRegion = (::gig::Region*) pStruct;
373                ::gig::Instrument* pInstrument =
374                    (::gig::Instrument*) pRegion->GetParent();
375                Lock();
376                std::set<gig::Engine*> engines =
377                    GetEnginesUsing(pInstrument, false/*don't lock again*/);
378                std::set<gig::Engine*>::iterator iter = engines.begin();
379                std::set<gig::Engine*>::iterator end  = engines.end();
380                for (; iter != end; ++iter) (*iter)->Suspend(pRegion);
381                Unlock();
382            } else if (sStructType == "gig::DimensionRegion") {
383                // only advice the engines to suspend the given DimensionRegions's
384                // parent region, so they'll only ignore that region (and probably
385                // already other suspended ones), but beside that continue normal
386                // playback
387                ::gig::DimensionRegion* pDimReg =
388                    (::gig::DimensionRegion*) pStruct;
389                ::gig::Region* pRegion = pDimReg->GetParent();
390                ::gig::Instrument* pInstrument =
391                    (::gig::Instrument*) pRegion->GetParent();
392                Lock();
393                std::set<gig::Engine*> engines =
394                    GetEnginesUsing(pInstrument, false/*don't lock again*/);
395                std::set<gig::Engine*>::iterator iter = engines.begin();
396                std::set<gig::Engine*>::iterator end  = engines.end();
397                for (; iter != end; ++iter) (*iter)->Suspend(pRegion);
398                Unlock();
399            } else {
400                std::cerr << "gig::InstrumentResourceManager: ERROR, unknown data "
401                             "structure '" << sStructType << "' requested to be "
402                             "suspended by instrument editor. This is a bug!\n"
403                          << std::flush;
404                //TODO: we should inform the instrument editor that something seriously went wrong
405            }
406        }
407    
408        void InstrumentResourceManager::OnDataStructureChanged(void* pStruct, String sStructType, InstrumentEditor* pSender) {
409            //TODO: remove code duplication
410            if (sStructType == "gig::File") {
411                // resume all previously suspended engines
412                ResumeAllEngines();
413            } else if (sStructType == "gig::Instrument") {
414                // resume all previously suspended engines
415                ResumeAllEngines();
416            } else if (sStructType == "gig::Region") {
417                // advice the engines to resume the given region, that is to
418                // using it for playback again
419                ::gig::Region* pRegion = (::gig::Region*) pStruct;
420                ::gig::Instrument* pInstrument =
421                    (::gig::Instrument*) pRegion->GetParent();
422                Lock();
423                std::set<gig::Engine*> engines =
424                    GetEnginesUsing(pInstrument, false/*don't lock again*/);
425                std::set<gig::Engine*>::iterator iter = engines.begin();
426                std::set<gig::Engine*>::iterator end  = engines.end();
427                for (; iter != end; ++iter) (*iter)->Resume(pRegion);
428                Unlock();
429            } else if (sStructType == "gig::DimensionRegion") {
430                // advice the engines to resume the given DimensionRegion's parent
431                // region, that is to using it for playback again
432                ::gig::DimensionRegion* pDimReg =
433                    (::gig::DimensionRegion*) pStruct;
434                ::gig::Region* pRegion = pDimReg->GetParent();
435                ::gig::Instrument* pInstrument =
436                    (::gig::Instrument*) pRegion->GetParent();
437                Lock();
438                std::set<gig::Engine*> engines =
439                    GetEnginesUsing(pInstrument, false/*don't lock again*/);
440                std::set<gig::Engine*>::iterator iter = engines.begin();
441                std::set<gig::Engine*>::iterator end  = engines.end();
442                for (; iter != end; ++iter) (*iter)->Resume(pRegion);
443                Unlock();
444            } else {
445                std::cerr << "gig::InstrumentResourceManager: ERROR, unknown data "
446                             "structure '" << sStructType << "' requested to be "
447                             "resumed by instrument editor. This is a bug!\n"
448                          << std::flush;
449                //TODO: we should inform the instrument editor that something seriously went wrong
450            }
451        }
452    
453        void InstrumentResourceManager::OnSampleReferenceChanged(void* pOldSample, void* pNewSample, InstrumentEditor* pSender) {
454            // uncache old sample in case it's not used by anybody anymore
455            if (pOldSample) {
456                Lock();
457                ::gig::Sample* pSample = (::gig::Sample*) pOldSample;
458                ::gig::File* pFile = (::gig::File*) pSample->GetParent();
459                std::vector< ::gig::Instrument*> instruments =
460                    GetInstrumentsCurrentlyUsedOf(pFile, false/*don't lock again*/);
461                for (int i = 0; i < instruments.size(); i++)
462                    if (!SampleReferencedByInstrument(pSample, instruments[i]))
463                        UncacheInitialSamples(pSample);
464                Unlock();
465            }
466            // make sure new sample reference is cached
467            if (pNewSample) {
468                Lock();
469                ::gig::Sample* pSample = (::gig::Sample*) pNewSample;
470                ::gig::File* pFile = (::gig::File*) pSample->GetParent();
471                // get all engines that use that same gig::File
472                std::set<gig::Engine*> engines = GetEnginesUsing(pFile, false/*don't lock again*/);
473                std::set<gig::Engine*>::iterator iter = engines.begin();
474                std::set<gig::Engine*>::iterator end  = engines.end();
475                for (; iter != end; ++iter)
476                    CacheInitialSamples(pSample, *iter);
477                Unlock();
478          }          }
         // free the editor  
         InstrumentEditorFactory::Destroy(pSender);  
479      }      }
480    
481      ::gig::Instrument* InstrumentResourceManager::Create(instrument_id_t Key, InstrumentConsumer* pConsumer, void*& pArg) {      ::gig::Instrument* InstrumentResourceManager::Create(instrument_id_t Key, InstrumentConsumer* pConsumer, void*& pArg) {
482          // get gig file from inernal gig file manager          // get gig file from internal gig file manager
483          ::gig::File* pGig = Gigs.Borrow(Key.FileName, (GigConsumer*) Key.Index); // conversion kinda hackish :/          ::gig::File* pGig = Gigs.Borrow(Key.FileName, (GigConsumer*) Key.Index); // conversion kinda hackish :/
484    
485          // we pass this to the progress callback mechanism of libgig          // we pass this to the progress callback mechanism of libgig
# Line 257  namespace LinuxSampler { namespace gig { Line 564  namespace LinuxSampler { namespace gig {
564       * Give back an instrument. This should be used instead of       * Give back an instrument. This should be used instead of
565       * HandBack if there are some dimension regions that are still in       * HandBack if there are some dimension regions that are still in
566       * use. (When an instrument is changed, the voices currently       * use. (When an instrument is changed, the voices currently
567       * playing is allowed to keep playing with the old instrument       * playing are allowed to keep playing with the old instrument
568       * until note off arrives. New notes will use the new instrument.)       * until note off arrives. New notes will use the new instrument.)
569       */       */
570      void InstrumentResourceManager::HandBackInstrument(::gig::Instrument* pResource, InstrumentConsumer* pConsumer,      void InstrumentResourceManager::HandBackInstrument(::gig::Instrument* pResource, InstrumentConsumer* pConsumer,
571                                                         ::gig::DimensionRegion** dimRegionsInUse) {                                                         RTList< ::gig::DimensionRegion*>* pDimRegionsInUse) {
572          DimRegInfoMutex.Lock();          DimRegInfoMutex.Lock();
573          for (int i = 0 ; dimRegionsInUse[i] ; i++) {          for (RTList< ::gig::DimensionRegion*>::Iterator i = pDimRegionsInUse->first() ; i != pDimRegionsInUse->end() ; i++) {
574              DimRegInfo[dimRegionsInUse[i]].refCount++;              DimRegInfo[*i].refCount++;
575              SampleRefCount[dimRegionsInUse[i]->pSample]++;              SampleRefCount[(*i)->pSample]++;
576          }          }
577          HandBack(pResource, pConsumer, true);          HandBack(pResource, pConsumer, true);
578          DimRegInfoMutex.Unlock();          DimRegInfoMutex.Unlock();
# Line 304  namespace LinuxSampler { namespace gig { Line 611  namespace LinuxSampler { namespace gig {
611      }      }
612    
613      /**      /**
614         * Just a wrapper around the other @c CacheInitialSamples() method.
615         *
616         *  @param pSample - points to the sample to be cached
617         *  @param pEngine - pointer to Gig Engine Channel which caused this call
618         *                   (may be NULL, in this case default amount of samples
619         *                   will be cached)
620         */
621        void InstrumentResourceManager::CacheInitialSamples(::gig::Sample* pSample, gig::EngineChannel* pEngineChannel) {
622            gig::Engine* pEngine =
623                (pEngineChannel && pEngineChannel->GetEngine()) ?
624                    dynamic_cast<gig::Engine*>(pEngineChannel->GetEngine()) : NULL;
625            CacheInitialSamples(pSample, pEngine);
626        }
627    
628        /**
629       *  Caches a certain size at the beginning of the given sample in RAM. If the       *  Caches a certain size at the beginning of the given sample in RAM. If the
630       *  sample is very short, the whole sample will be loaded into RAM and thus       *  sample is very short, the whole sample will be loaded into RAM and thus
631       *  no disk streaming is needed for this sample. Caching an initial part of       *  no disk streaming is needed for this sample. Caching an initial part of
632       *  samples is needed to compensate disk reading latency.       *  samples is needed to compensate disk reading latency.
633       *       *
634       *  @param pSample - points to the sample to be cached       *  @param pSample - points to the sample to be cached
635       *  @param pEngineChannel - pointer to Gig Engine Channel which caused this call       *  @param pEngine - pointer to Gig Engine which caused this call
636         *                   (may be NULL, in this case default amount of samples
637         *                   will be cached)
638       */       */
639      void InstrumentResourceManager::CacheInitialSamples(::gig::Sample* pSample, gig::EngineChannel* pEngineChannel) {      void InstrumentResourceManager::CacheInitialSamples(::gig::Sample* pSample, gig::Engine* pEngine) {
640          if (!pSample) {          if (!pSample) {
641              dmsg(4,("gig::InstrumentResourceManager: Skipping sample (pSample == NULL)\n"));              dmsg(4,("gig::InstrumentResourceManager: Skipping sample (pSample == NULL)\n"));
642              return;              return;
# Line 326  namespace LinuxSampler { namespace gig { Line 650  namespace LinuxSampler { namespace gig {
650              // border, to allow the interpolator do it's work even at the end of              // border, to allow the interpolator do it's work even at the end of
651              // the sample.              // the sample.
652              const uint maxSamplesPerCycle =              const uint maxSamplesPerCycle =
653                  (pEngineChannel && pEngineChannel->GetEngine()) ? dynamic_cast<gig::Engine*>(pEngineChannel->GetEngine())->pAudioOutputDevice->MaxSamplesPerCycle()                  (pEngine) ? pEngine->pAudioOutputDevice->MaxSamplesPerCycle()
654                                                : GIG_RESOURCE_MANAGER_DEFAULT_MAX_SAMPLES_PER_CYCLE;                            : GIG_RESOURCE_MANAGER_DEFAULT_MAX_SAMPLES_PER_CYCLE;
655              const uint neededSilenceSamples = (maxSamplesPerCycle << CONFIG_MAX_PITCH) + 3;              const uint neededSilenceSamples = (maxSamplesPerCycle << CONFIG_MAX_PITCH) + 3;
656              const uint currentlyCachedSilenceSamples = pSample->GetCache().NullExtensionSize / pSample->FrameSize;              const uint currentlyCachedSilenceSamples = pSample->GetCache().NullExtensionSize / pSample->FrameSize;
657              if (currentlyCachedSilenceSamples < neededSilenceSamples) {              if (currentlyCachedSilenceSamples < neededSilenceSamples) {
# Line 343  namespace LinuxSampler { namespace gig { Line 667  namespace LinuxSampler { namespace gig {
667          if (!pSample->GetCache().Size) std::cerr << "Unable to cache sample - maybe memory full!" << std::endl << std::flush;          if (!pSample->GetCache().Size) std::cerr << "Unable to cache sample - maybe memory full!" << std::endl << std::flush;
668      }      }
669    
670        void InstrumentResourceManager::UncacheInitialSamples(::gig::Sample* pSample) {
671            dmsg(1,("Uncaching sample %x\n",pSample));
672            if (pSample->GetCache().Size) pSample->ReleaseSampleData();
673        }
674    
675        /**
676         * Returns a list with all instruments currently in use, that are part of
677         * the given file.
678         *
679         * @param pFile - search criteria
680         * @param bLock - whether we should lock (mutex) the instrument manager
681         *                during this call and unlock at the end of this call
682         */
683        std::vector< ::gig::Instrument*> InstrumentResourceManager::GetInstrumentsCurrentlyUsedOf(::gig::File* pFile, bool bLock) {
684            if (bLock) Lock();
685            std::vector< ::gig::Instrument*> result;
686            std::vector< ::gig::Instrument*> allInstruments = Resources(false/*don't lock again*/);
687            for (int i = 0; i < allInstruments.size(); i++)
688                if (
689                    (::gig::File*) allInstruments[i]->GetParent()
690                    == pFile
691                ) result.push_back(allInstruments[i]);
692            if (bLock) Unlock();
693            return result;
694        }
695    
696        /**
697         * Returns a list with all gig engine channels that are currently using
698         * the given instrument.
699         *
700         * @param pInstrument - search criteria
701         * @param bLock - whether we should lock (mutex) the instrument manager
702         *                during this call and unlock at the end of this call
703         */
704        std::set<gig::EngineChannel*> InstrumentResourceManager::GetEngineChannelsUsing(::gig::Instrument* pInstrument, bool bLock) {
705            if (bLock) Lock();
706            std::set<gig::EngineChannel*> result;
707            std::set<ResourceConsumer< ::gig::Instrument>*> consumers = ConsumersOf(pInstrument);
708            std::set<ResourceConsumer< ::gig::Instrument>*>::iterator iter = consumers.begin();
709            std::set<ResourceConsumer< ::gig::Instrument>*>::iterator end  = consumers.end();
710            for (; iter != end; ++iter) {
711                gig::EngineChannel* pEngineChannel = dynamic_cast<gig::EngineChannel*>(*iter);
712                if (!pEngineChannel) continue;
713                result.insert(pEngineChannel);
714            }
715            if (bLock) Unlock();
716            return result;
717        }
718    
719        /**
720         * Returns a list with all gig Engines that are currently using the given
721         * instrument.
722         *
723         * @param pInstrument - search criteria
724         * @param bLock - whether we should lock (mutex) the instrument manager
725         *                during this call and unlock at the end of this call
726         */
727        std::set<gig::Engine*> InstrumentResourceManager::GetEnginesUsing(::gig::Instrument* pInstrument, bool bLock) {
728            if (bLock) Lock();
729            std::set<gig::Engine*> result;
730            std::set<ResourceConsumer< ::gig::Instrument>*> consumers = ConsumersOf(pInstrument);
731            std::set<ResourceConsumer< ::gig::Instrument>*>::iterator iter = consumers.begin();
732            std::set<ResourceConsumer< ::gig::Instrument>*>::iterator end  = consumers.end();
733            for (; iter != end; ++iter) {
734                gig::EngineChannel* pEngineChannel = dynamic_cast<gig::EngineChannel*>(*iter);
735                if (!pEngineChannel) continue;
736                gig::Engine* pEngine = dynamic_cast<gig::Engine*>(pEngineChannel->GetEngine());
737                if (!pEngine) continue;
738                result.insert(pEngine);
739            }
740            if (bLock) Unlock();
741            return result;
742        }
743    
744        /**
745         * Returns a list with all gig Engines that are currently using an
746         * instrument that is part of the given instrument file.
747         *
748         * @param pFile - search criteria
749         * @param bLock - whether we should lock (mutex) the instrument manager
750         *                during this call and unlock at the end of this call
751         */
752        std::set<gig::Engine*> InstrumentResourceManager::GetEnginesUsing(::gig::File* pFile, bool bLock) {
753            if (bLock) Lock();
754            // get all instruments (currently in usage) that use that same gig::File
755            std::vector< ::gig::Instrument*> instrumentsOfInterest =
756                GetInstrumentsCurrentlyUsedOf(pFile, false/*don't lock again*/);
757    
758            // get all engines that use that same gig::File
759            std::set<gig::Engine*> result;
760            {
761                for (int i = 0; i < instrumentsOfInterest.size(); i++) {
762                    std::set<ResourceConsumer< ::gig::Instrument>*> consumers = ConsumersOf(instrumentsOfInterest[i]);
763                    std::set<ResourceConsumer< ::gig::Instrument>*>::iterator iter = consumers.begin();
764                    std::set<ResourceConsumer< ::gig::Instrument>*>::iterator end  = consumers.end();
765                    for (; iter != end; ++iter) {
766                        gig::EngineChannel* pEngineChannel = dynamic_cast<gig::EngineChannel*>(*iter);
767                        if (!pEngineChannel) continue;
768                        gig::Engine* pEngine = dynamic_cast<gig::Engine*>(pEngineChannel->GetEngine());
769                        if (!pEngine) continue;
770                        // the unique, sorted container std::set makes
771                        // sure we won't have duplicates
772                        result.insert(pEngine);
773                    }
774                }
775            }
776            if (bLock) Unlock();
777            return result;
778        }
779    
780        /**
781         * Returns @c true in case the given sample is referenced somewhere by the
782         * given instrument, @c false otherwise.
783         *
784         * @param pSample - sample reference
785         * @param pInstrument - instrument that might use that sample
786         */
787        bool InstrumentResourceManager::SampleReferencedByInstrument(::gig::Sample* pSample, ::gig::Instrument* pInstrument) {
788            for (
789                ::gig::Region* pRegion = pInstrument->GetFirstRegion();
790                pRegion; pRegion = pInstrument->GetNextRegion()
791            ) {
792                for (
793                    int i = 0; i < pRegion->DimensionRegions &&
794                    pRegion->pDimensionRegions[i]; i++
795                ) {
796                    if (pRegion->pDimensionRegions[i]->pSample == pSample)
797                        return true;
798                }
799            }
800            return false;
801        }
802    
803        /**
804         * Suspend all gig engines that use the given instrument. This means
805         * completely stopping playback on those engines and killing all their
806         * voices and disk streams. This method will block until all voices AND
807         * their disk streams are finally deleted and the engine turned into a
808         * complete idle loop.
809         *
810         * All @c SuspendEnginesUsing() methods only serve one thread by one and
811         * block all other threads until the current active thread called
812         * @c ResumeAllEngines() .
813         *
814         * @param pInstrument - search criteria
815         */
816        void InstrumentResourceManager::SuspendEnginesUsing(::gig::Instrument* pInstrument) {
817            // make sure no other thread suspends whole engines at the same time
818            suspendedEnginesMutex.Lock();
819            // get all engines that use that same gig::Instrument
820            suspendedEngines = GetEnginesUsing(pInstrument, true/*lock*/);
821            // finally, completely suspend all engines that use that same gig::Instrument
822            std::set<gig::Engine*>::iterator iter = suspendedEngines.begin();
823            std::set<gig::Engine*>::iterator end  = suspendedEngines.end();
824            for (; iter != end; ++iter) (*iter)->SuspendAll();
825        }
826    
827        /**
828         * Suspend all gig engines that use the given instrument file. This means
829         * completely stopping playback on those engines and killing all their
830         * voices and disk streams. This method will block until all voices AND
831         * their disk streams are finally deleted and the engine turned into a
832         * complete idle loop.
833         *
834         * All @c SuspendEnginesUsing() methods only serve one thread by one and
835         * block all other threads until the current active thread called
836         * @c ResumeAllEngines() .
837         *
838         * @param pFile - search criteria
839         */
840        void InstrumentResourceManager::SuspendEnginesUsing(::gig::File* pFile) {
841            // make sure no other thread suspends whole engines at the same time
842            suspendedEnginesMutex.Lock();
843            // get all engines that use that same gig::File
844            suspendedEngines = GetEnginesUsing(pFile, true/*lock*/);
845            // finally, completely suspend all engines that use that same gig::File
846            std::set<gig::Engine*>::iterator iter = suspendedEngines.begin();
847            std::set<gig::Engine*>::iterator end  = suspendedEngines.end();
848            for (; iter != end; ++iter) (*iter)->SuspendAll();
849        }
850    
851        /**
852         * MUST be called after one called one of the @c SuspendEnginesUsing()
853         * methods, to resume normal playback on all previously suspended engines.
854         * As it's only possible for one thread to suspend whole engines at the
855         * same time, this method doesn't take any arguments.
856         */
857        void InstrumentResourceManager::ResumeAllEngines() {
858            // resume all previously completely suspended engines
859            std::set<Engine*>::iterator iter = suspendedEngines.begin();
860            std::set<Engine*>::iterator end  = suspendedEngines.end();
861            for (; iter != end; ++iter) (*iter)->ResumeAll();
862            // no more suspended engines ...
863            suspendedEngines.clear();
864            // allow another thread to suspend whole engines
865            suspendedEnginesMutex.Unlock();
866        }
867    
868    
869    
870      // internal gig file manager      // internal gig file manager
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