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

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revision 1646 by persson, Sun Jan 20 15:04:51 2008 UTC revision 1797 by persson, Thu Dec 4 19:33:13 2008 UTC
# Line 67  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 144  namespace LinuxSampler { namespace gig { Line 146  namespace LinuxSampler { namespace gig {
146      }      }
147    
148      InstrumentResourceManager::instrument_info_t InstrumentResourceManager::GetInstrumentInfo(instrument_id_t ID) throw (InstrumentManagerException) {      InstrumentResourceManager::instrument_info_t InstrumentResourceManager::GetInstrumentInfo(instrument_id_t ID) throw (InstrumentManagerException) {
149          std::vector<instrument_id_t> result;          Lock();
150            ::gig::Instrument* pInstrument = Resource(ID, false);
151            bool loaded = (pInstrument != NULL);
152            if (!loaded) Unlock();
153    
154          ::RIFF::File* riff = NULL;          ::RIFF::File* riff = NULL;
155          ::gig::File*  gig  = NULL;          ::gig::File*  gig  = NULL;
156          try {          try {
157              riff = new ::RIFF::File(ID.FileName);              if(!loaded) {
158              gig  = new ::gig::File(riff);                  riff = new ::RIFF::File(ID.FileName);
159              gig->SetAutoLoad(false); // avoid time consuming samples scanning                  gig  = new ::gig::File(riff);
160              ::gig::Instrument* pInstrument = gig->GetInstrument(ID.Index);                  gig->SetAutoLoad(false); // avoid time consuming samples scanning
161                    pInstrument = gig->GetInstrument(ID.Index);
162                }
163                
164              if (!pInstrument) throw InstrumentManagerException("There is no instrument " + ToString(ID.Index) + " in " + ID.FileName);              if (!pInstrument) throw InstrumentManagerException("There is no instrument " + ToString(ID.Index) + " in " + ID.FileName);
165    
166              instrument_info_t info;              instrument_info_t info;
167              if (gig->pVersion) {              for (int i = 0; i < 128; i++) { info.KeyBindings[i] = info.KeySwitchBindings[i] = 0; }
168                  info.FormatVersion = ToString(gig->pVersion->major);  
169                  info.Product = gig->pInfo->Product;              ::gig::File* pFile = (::gig::File*) pInstrument->GetParent();
170                  info.Artists = gig->pInfo->Artists;  
171                if (pFile->pVersion) {
172                    info.FormatVersion = ToString(pFile->pVersion->major);
173                    info.Product = pFile->pInfo->Product;
174                    info.Artists = pFile->pInfo->Artists;
175              }              }
176    
177              info.InstrumentName = pInstrument->pInfo->Name;              info.InstrumentName = pInstrument->pInfo->Name;
178    
179                ::gig::Region* pRegion = pInstrument->GetFirstRegion();
180                while (pRegion) {
181                    int low = pRegion->KeyRange.low;
182                    int high = pRegion->KeyRange.high;
183                    if (low < 0 || low > 127 || high < 0 || high > 127 || low > high) {
184                        std::cerr << "Invalid key range: " << low << " - " << high << std::endl;
185                    } else {
186                        for (int i = low; i <= high; i++) info.KeyBindings[i] = 1;
187                    }
188    
189                    pRegion = pInstrument->GetNextRegion();
190                }
191    
192                if (loaded) { // retrieve keyswitching only if the instrument is fully loaded.
193    
194                    // only return keyswitch range if keyswitching is used
195                    bool hasKeyswitches = false;
196                    for (::gig::Region* pRegion = pInstrument->GetFirstRegion() ;
197                         pRegion && !hasKeyswitches ;
198                         pRegion = pInstrument->GetNextRegion()) {
199                        for (int i = 0 ; i < pRegion->Dimensions ; i++) {
200                            if (pRegion->pDimensionDefinitions[i].dimension == ::gig::dimension_keyboard) {
201                                hasKeyswitches = true;
202                                break;
203                            }
204                        }
205                    }
206    
207                    if (hasKeyswitches) {
208                        int low = pInstrument->DimensionKeyRange.low;
209                        int high = pInstrument->DimensionKeyRange.high;
210                        if (low < 0 || low > 127 || high < 0 || high > 127 || low > high) {
211                            std::cerr << "Invalid keyswitch range: " << low << " - " << high << std::endl;
212                        } else {
213                            for (int i = low; i <= high; i++) info.KeySwitchBindings[i] = 1;
214                        }
215                    }
216                }
217    
218                if (loaded) Unlock();
219    
220              if (gig)  delete gig;              if (gig)  delete gig;
221              if (riff) delete riff;              if (riff) delete riff;
222              return info;              return info;
223          } catch (::RIFF::Exception e) {          } catch (::RIFF::Exception e) {
224                if (loaded) Unlock();
225              if (gig)  delete gig;              if (gig)  delete gig;
226              if (riff) delete riff;              if (riff) delete riff;
227              throw InstrumentManagerException(e.Message);              throw InstrumentManagerException(e.Message);
228          } catch (...) {          } catch (...) {
229                if (loaded) Unlock();
230              if (gig)  delete gig;              if (gig)  delete gig;
231              if (riff) delete riff;              if (riff) delete riff;
232              throw InstrumentManagerException("Unknown exception while trying to parse '" + ID.FileName + "'");              throw InstrumentManagerException("Unknown exception while trying to parse '" + ID.FileName + "'");
# Line 196  namespace LinuxSampler { namespace gig { Line 255  namespace LinuxSampler { namespace gig {
255          ::gig::Instrument* pInstrument = Borrow(ID, pProxy);          ::gig::Instrument* pInstrument = Borrow(ID, pProxy);
256          // remember the proxy and instrument for this instrument editor          // remember the proxy and instrument for this instrument editor
257          pProxy->pInstrument = pInstrument;          pProxy->pInstrument = pInstrument;
258            pProxy->pEditor     = pEditor;
259          InstrumentEditorProxiesMutex.Lock();          InstrumentEditorProxiesMutex.Lock();
260          InstrumentEditorProxies[pEditor] = pProxy;          InstrumentEditorProxies.add(pProxy);
261          InstrumentEditorProxiesMutex.Unlock();          InstrumentEditorProxiesMutex.Unlock();
262          // launch the instrument editor for the given instrument          // launch the instrument editor for the given instrument
263          pEditor->Launch(pInstrument, sDataType, sDataVersion);          pEditor->Launch(pInstrument, sDataType, sDataVersion);
264    
265            // register the instrument editor as virtual MIDI device as well ...
266            VirtualMidiDevice* pVirtualMidiDevice =
267                dynamic_cast<VirtualMidiDevice*>(pEditor);
268            if (!pVirtualMidiDevice) {
269                std::cerr << "Instrument editor not a virtual MIDI device\n" << std::flush;
270                return;
271            }
272            // 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 ? )
273            Lock();
274            std::set<gig::EngineChannel*> engineChannels =
275                GetEngineChannelsUsing(pInstrument, false/*don't lock again*/);
276            std::set<gig::EngineChannel*>::iterator iter = engineChannels.begin();
277            std::set<gig::EngineChannel*>::iterator end  = engineChannels.end();
278            for (; iter != end; ++iter) (*iter)->Connect(pVirtualMidiDevice);
279            Unlock();
280      }      }
281    
282      /**      /**
# Line 212  namespace LinuxSampler { namespace gig { Line 288  namespace LinuxSampler { namespace gig {
288       */       */
289      void InstrumentResourceManager::OnInstrumentEditorQuit(InstrumentEditor* pSender) {      void InstrumentResourceManager::OnInstrumentEditorQuit(InstrumentEditor* pSender) {
290          dmsg(1,("InstrumentResourceManager: instrument editor quit, doing cleanup\n"));          dmsg(1,("InstrumentResourceManager: instrument editor quit, doing cleanup\n"));
291          // hand back instrument and free proxy  
292            ::gig::Instrument* pInstrument = NULL;
293            InstrumentEditorProxy* pProxy  = NULL;
294            int iProxyIndex                = -1;
295    
296            // first find the editor proxy entry for this editor
297          InstrumentEditorProxiesMutex.Lock();          InstrumentEditorProxiesMutex.Lock();
298          if (InstrumentEditorProxies.count(pSender)) {          for (int i = 0; i < InstrumentEditorProxies.size(); i++) {
299              InstrumentEditorProxy* pProxy =              InstrumentEditorProxy* pCurProxy =
300                  dynamic_cast<InstrumentEditorProxy*>(                  dynamic_cast<InstrumentEditorProxy*>(
301                      InstrumentEditorProxies[pSender]                      InstrumentEditorProxies[i]
302                  );                  );
303              InstrumentEditorProxies.erase(pSender);              if (pCurProxy->pEditor == pSender) {
304              InstrumentEditorProxiesMutex.Unlock();                  pProxy      = pCurProxy;
305              HandBack(pProxy->pInstrument, pProxy);                  iProxyIndex = i;
306              if (pProxy) delete pProxy;                  pInstrument = pCurProxy->pInstrument;
307                }
308            }
309            InstrumentEditorProxiesMutex.Unlock();
310    
311            if (!pProxy) {
312                std::cerr << "Eeeek, could not find instrument editor proxy, "
313                             "this is a bug!\n" << std::flush;
314                return;
315            }
316    
317            // now unregister editor as not being available as a virtual MIDI device anymore
318            VirtualMidiDevice* pVirtualMidiDevice =
319                dynamic_cast<VirtualMidiDevice*>(pSender);
320            if (pVirtualMidiDevice) {
321                Lock();
322                // NOTE: see note in LaunchInstrumentEditor()
323                std::set<gig::EngineChannel*> engineChannels =
324                    GetEngineChannelsUsing(pInstrument, false/*don't lock again*/);
325                std::set<gig::EngineChannel*>::iterator iter = engineChannels.begin();
326                std::set<gig::EngineChannel*>::iterator end  = engineChannels.end();
327                for (; iter != end; ++iter) (*iter)->Disconnect(pVirtualMidiDevice);
328                Unlock();
329          } else {          } else {
330                std::cerr << "Could not unregister editor as not longer acting as "
331                             "virtual MIDI device. Wasn't it registered?\n"
332                          << std::flush;
333            }
334    
335            // finally delete proxy entry and hand back instrument
336            if (pInstrument) {
337                InstrumentEditorProxiesMutex.Lock();
338                InstrumentEditorProxies.remove(iProxyIndex);
339              InstrumentEditorProxiesMutex.Unlock();              InstrumentEditorProxiesMutex.Unlock();
340              std::cerr << "Eeeek, could not find instrument editor proxy, this is a bug!\n" << std::flush;  
341                HandBack(pInstrument, pProxy);
342                delete pProxy;
343          }          }
344    
345          // Note that we don't need to free the editor here. As it          // Note that we don't need to free the editor here. As it
# Line 233  namespace LinuxSampler { namespace gig { Line 347  namespace LinuxSampler { namespace gig {
347          // dies.          // dies.
348      }      }
349    
350    #if 0 // currently unused :
351        /**
352         * Try to inform the respective instrument editor(s), that a note on
353         * event just occured. This method is called by the MIDI thread. If any
354         * obstacles are in the way (e.g. if a wait for an unlock would be
355         * required) we give up immediately, since the RT safeness of the MIDI
356         * thread has absolute priority.
357         */
358        void InstrumentResourceManager::TrySendNoteOnToEditors(uint8_t Key, uint8_t Velocity, ::gig::Instrument* pInstrument) {
359            const bool bGotLock = InstrumentEditorProxiesMutex.Trylock(); // naively assumes RT safe implementation
360            if (!bGotLock) return; // hell, forget it, not worth the hassle
361            for (int i = 0; i < InstrumentEditorProxies.size(); i++) {
362                InstrumentEditorProxy* pProxy =
363                    dynamic_cast<InstrumentEditorProxy*>(
364                        InstrumentEditorProxies[i]
365                    );
366                if (pProxy->pInstrument == pInstrument)
367                    pProxy->pEditor->SendNoteOnToDevice(Key, Velocity);
368            }
369            InstrumentEditorProxiesMutex.Unlock(); // naively assumes RT safe implementation
370        }
371    
372        /**
373         * Try to inform the respective instrument editor(s), that a note off
374         * event just occured. This method is called by the MIDI thread. If any
375         * obstacles are in the way (e.g. if a wait for an unlock would be
376         * required) we give up immediately, since the RT safeness of the MIDI
377         * thread has absolute priority.
378         */
379        void InstrumentResourceManager::TrySendNoteOffToEditors(uint8_t Key, uint8_t Velocity, ::gig::Instrument* pInstrument) {
380            const bool bGotLock = InstrumentEditorProxiesMutex.Trylock(); // naively assumes RT safe implementation
381            if (!bGotLock) return; // hell, forget it, not worth the hassle
382            for (int i = 0; i < InstrumentEditorProxies.size(); i++) {
383                InstrumentEditorProxy* pProxy =
384                    dynamic_cast<InstrumentEditorProxy*>(
385                        InstrumentEditorProxies[i]
386                    );
387                if (pProxy->pInstrument == pInstrument)
388                    pProxy->pEditor->SendNoteOffToDevice(Key, Velocity);
389            }
390            InstrumentEditorProxiesMutex.Unlock(); // naively assumes RT safe implementation
391        }
392    #endif // unused
393    
394      void InstrumentResourceManager::OnSamplesToBeRemoved(std::set<void*> Samples, InstrumentEditor* pSender) {      void InstrumentResourceManager::OnSamplesToBeRemoved(std::set<void*> Samples, InstrumentEditor* pSender) {
395          if (Samples.empty()) {          if (Samples.empty()) {
396              std::cerr << "gig::InstrumentResourceManager: WARNING, "              std::cerr << "gig::InstrumentResourceManager: WARNING, "
# Line 591  namespace LinuxSampler { namespace gig { Line 749  namespace LinuxSampler { namespace gig {
749          if (bLock) Unlock();          if (bLock) Unlock();
750          return result;          return result;
751      }      }
752    
753        /**
754         * Returns a list with all gig engine channels that are currently using
755         * the given instrument.
756         *
757         * @param pInstrument - search criteria
758         * @param bLock - whether we should lock (mutex) the instrument manager
759         *                during this call and unlock at the end of this call
760         */
761        std::set<gig::EngineChannel*> InstrumentResourceManager::GetEngineChannelsUsing(::gig::Instrument* pInstrument, bool bLock) {
762            if (bLock) Lock();
763            std::set<gig::EngineChannel*> result;
764            std::set<ResourceConsumer< ::gig::Instrument>*> consumers = ConsumersOf(pInstrument);
765            std::set<ResourceConsumer< ::gig::Instrument>*>::iterator iter = consumers.begin();
766            std::set<ResourceConsumer< ::gig::Instrument>*>::iterator end  = consumers.end();
767            for (; iter != end; ++iter) {
768                gig::EngineChannel* pEngineChannel = dynamic_cast<gig::EngineChannel*>(*iter);
769                if (!pEngineChannel) continue;
770                result.insert(pEngineChannel);
771            }
772            if (bLock) Unlock();
773            return result;
774        }
775    
776      /**      /**
777       * Returns a list with all gig Engines that are currently using the given       * Returns a list with all gig Engines that are currently using the given
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