/[svn]/linuxsampler/trunk/src/engines/gig/InstrumentResourceManager.cpp
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revision 2012 by iliev, Fri Oct 23 17:53:17 2009 UTC revision 2309 by iliev, Mon Jan 30 10:40:19 2012 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 - 2009 Christian Schoenebeck                       *   *   Copyright (C) 2005 - 2011 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 30  Line 30 
30  #include "../../common/global_private.h"  #include "../../common/global_private.h"
31  #include "../../plugins/InstrumentEditorFactory.h"  #include "../../plugins/InstrumentEditorFactory.h"
32    
 // We need to know the maximum number of sample points which are going to  
 // be processed for each render cycle of the audio output driver, to know  
 // how much initial sample points we need to cache into RAM. If the given  
 // sampler channel does not have an audio output device assigned yet  
 // though, we simply use this default value.  
 #define GIG_RESOURCE_MANAGER_DEFAULT_MAX_SAMPLES_PER_CYCLE     128  
   
33  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
34    
35      // data stored as long as an instrument resource exists      // data stored as long as an instrument resource exists
# Line 559  namespace LinuxSampler { namespace gig { Line 552  namespace LinuxSampler { namespace gig {
552    
553      ::gig::Instrument* InstrumentResourceManager::Create(instrument_id_t Key, InstrumentConsumer* pConsumer, void*& pArg) {      ::gig::Instrument* InstrumentResourceManager::Create(instrument_id_t Key, InstrumentConsumer* pConsumer, void*& pArg) {
554          // get gig file from internal gig file manager          // get gig file from internal gig file manager
555          ::gig::File* pGig = Gigs.Borrow(Key.FileName, (GigConsumer*) Key.Index); // conversion kinda hackish :/          ::gig::File* pGig = Gigs.Borrow(Key.FileName, reinterpret_cast<GigConsumer*>(Key.Index)); // conversion kinda hackish :/
556    
557          // we pass this to the progress callback mechanism of libgig          // we pass this to the progress callback mechanism of libgig
558          progress_callback_arg_t callbackArg;          progress_callback_arg_t callbackArg;
# Line 609  namespace LinuxSampler { namespace gig { Line 602  namespace LinuxSampler { namespace gig {
602          pEntry->ID.Index      = Key.Index;          pEntry->ID.Index      = Key.Index;
603          pEntry->pGig          = pGig;          pEntry->pGig          = pGig;
604    
605            // (try to resolve the audio device context)
606          EngineChannel* pEngineChannel = dynamic_cast<EngineChannel*>(pConsumer);          EngineChannel* pEngineChannel = dynamic_cast<EngineChannel*>(pConsumer);
607            Engine* pEngine = dynamic_cast<Engine*>(pEngineChannel->GetEngine());
608            AudioOutputDevice* pDevice = (pEngine) ? pEngine->pAudioOutputDevice : NULL;
609          // and we save this to check if we need to reallocate for a engine with higher value of 'MaxSamplesPerSecond'          // and we save this to check if we need to reallocate for a engine with higher value of 'MaxSamplesPerSecond'
610          pEntry->MaxSamplesPerCycle =          pEntry->MaxSamplesPerCycle =
611              (!pEngineChannel) ? 0 /* don't care for instrument editors */ :              (pDevice) ? pDevice->MaxSamplesPerCycle() : DefaultMaxSamplesPerCycle();
612                  (pEngineChannel->GetEngine()) ?          
                     dynamic_cast<Engine*>(pEngineChannel->GetEngine())->pAudioOutputDevice->MaxSamplesPerCycle()  
                     : GIG_RESOURCE_MANAGER_DEFAULT_MAX_SAMPLES_PER_CYCLE;  
613          pArg = pEntry;          pArg = pEntry;
614    
615          return pInstrument;          return pInstrument;
# Line 624  namespace LinuxSampler { namespace gig { Line 618  namespace LinuxSampler { namespace gig {
618      void InstrumentResourceManager::Destroy( ::gig::Instrument* pResource, void* pArg) {      void InstrumentResourceManager::Destroy( ::gig::Instrument* pResource, void* pArg) {
619          instr_entry_t* pEntry = (instr_entry_t*) pArg;          instr_entry_t* pEntry = (instr_entry_t*) pArg;
620          // we don't need the .gig file here anymore          // we don't need the .gig file here anymore
621          Gigs.HandBack(pEntry->pGig, (GigConsumer*) pEntry->ID.Index); // conversion kinda hackish :/          Gigs.HandBack(pEntry->pGig, reinterpret_cast<GigConsumer*>(pEntry->ID.Index)); // conversion kinda hackish :/
622          delete pEntry;          delete pEntry;
623      }      }
624    
625      void InstrumentResourceManager::OnBorrow(::gig::Instrument* pResource, InstrumentConsumer* pConsumer, void*& pArg) {      void InstrumentResourceManager::OnBorrow(::gig::Instrument* pResource, InstrumentConsumer* pConsumer, void*& pArg) {
626          instr_entry_t* pEntry = (instr_entry_t*) pArg;          instr_entry_t* pEntry = (instr_entry_t*) pArg;
627            
628            // (try to resolve the audio device context)
629          EngineChannel* pEngineChannel = dynamic_cast<EngineChannel*>(pConsumer);          EngineChannel* pEngineChannel = dynamic_cast<EngineChannel*>(pConsumer);
630            Engine* pEngine = pEngineChannel ? dynamic_cast<Engine*>(pEngineChannel->GetEngine()) : NULL;
631            AudioOutputDevice* pDevice = (pEngine) ? pEngine->pAudioOutputDevice : NULL;
632            
633          uint maxSamplesPerCycle =          uint maxSamplesPerCycle =
634              (pEngineChannel && pEngineChannel->GetEngine()) ? dynamic_cast<Engine*>(pEngineChannel->GetEngine())->pAudioOutputDevice->MaxSamplesPerCycle()              (pDevice) ? pDevice->MaxSamplesPerCycle() : DefaultMaxSamplesPerCycle();
635                                            : GIG_RESOURCE_MANAGER_DEFAULT_MAX_SAMPLES_PER_CYCLE;  
636          if (pEntry->MaxSamplesPerCycle < maxSamplesPerCycle) {          if (pEntry->MaxSamplesPerCycle < maxSamplesPerCycle) {
637                dmsg(1,("Completely reloading instrument due to insufficient precached samples ...\n"));
638              Update(pResource, pConsumer);              Update(pResource, pConsumer);
639          }          }
640      }      }
# Line 642  namespace LinuxSampler { namespace gig { Line 642  namespace LinuxSampler { namespace gig {
642      void InstrumentResourceManager::DeleteRegionIfNotUsed(::gig::DimensionRegion* pRegion, region_info_t* pRegInfo) {      void InstrumentResourceManager::DeleteRegionIfNotUsed(::gig::DimensionRegion* pRegion, region_info_t* pRegInfo) {
643          // TODO: we could delete Region and Instrument here if they have become unused          // TODO: we could delete Region and Instrument here if they have become unused
644      }      }
645    
646      void InstrumentResourceManager::DeleteSampleIfNotUsed(::gig::Sample* pSample, region_info_t* pRegInfo) {      void InstrumentResourceManager::DeleteSampleIfNotUsed(::gig::Sample* pSample, region_info_t* pRegInfo) {
647          ::gig::File* gig = pRegInfo->file;          ::gig::File* gig = pRegInfo->file;
648          ::RIFF::File* riff = static_cast< ::RIFF::File*>(pRegInfo->pArg);          ::RIFF::File* riff = static_cast< ::RIFF::File*>(pRegInfo->pArg);
# Line 696  namespace LinuxSampler { namespace gig { Line 697  namespace LinuxSampler { namespace gig {
697              // the sample.              // the sample.
698              const uint maxSamplesPerCycle =              const uint maxSamplesPerCycle =
699                  (pEngine) ? pEngine->pAudioOutputDevice->MaxSamplesPerCycle()                  (pEngine) ? pEngine->pAudioOutputDevice->MaxSamplesPerCycle()
700                            : GIG_RESOURCE_MANAGER_DEFAULT_MAX_SAMPLES_PER_CYCLE;                            : DefaultMaxSamplesPerCycle();
701              const uint neededSilenceSamples = (maxSamplesPerCycle << CONFIG_MAX_PITCH) + 3;              const uint neededSilenceSamples = (maxSamplesPerCycle << CONFIG_MAX_PITCH) + 3;
702              const uint currentlyCachedSilenceSamples = pSample->GetCache().NullExtensionSize / pSample->FrameSize;              const uint currentlyCachedSilenceSamples = pSample->GetCache().NullExtensionSize / pSample->FrameSize;
703              if (currentlyCachedSilenceSamples < neededSilenceSamples) {              if (currentlyCachedSilenceSamples < neededSilenceSamples) {
# Line 924  namespace LinuxSampler { namespace gig { Line 925  namespace LinuxSampler { namespace gig {
925      }      }
926    
927      void InstrumentResourceManager::GigResourceManager::Destroy(::gig::File* pResource, void* pArg) {      void InstrumentResourceManager::GigResourceManager::Destroy(::gig::File* pResource, void* pArg) {
928          dmsg(1,("Freeing gig file from memory..."));          dmsg(1,("Freeing gig file '%s' from memory ...", pResource->GetFileName().c_str()));
929    
930          // Delete as much as possible of the gig file. Some of the          // Delete as much as possible of the gig file. Some of the
931          // dimension regions and samples may still be in use - these          // dimension regions and samples may still be in use - these
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