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* LinuxSampler - modular, streaming capable sampler * |
* LinuxSampler - modular, streaming capable sampler * |
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* * |
* * |
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* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
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* Copyright (C) 2005 Christian Schoenebeck * |
* Copyright (C) 2005, 2006 Christian Schoenebeck * |
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* * |
* * |
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* This program is free software; you can redistribute it and/or modify * |
* This program is free software; you can redistribute it and/or modify * |
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* 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 * |
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namespace LinuxSampler { namespace gig { |
namespace LinuxSampler { namespace gig { |
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// data stored as long as an instrument resource exists |
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struct instr_entry_t { |
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InstrumentManager::instrument_id_t ID; |
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::gig::File* pGig; |
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uint MaxSamplesPerCycle; ///< if some engine requests an already allocated instrument with a higher value, we have to reallocate the instrument |
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}; |
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// some data needed for the libgig callback function |
// some data needed for the libgig callback function |
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struct progress_callback_arg_t { |
struct progress_callback_arg_t { |
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InstrumentResourceManager* pManager; |
InstrumentResourceManager* pManager; |
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instrument_id_t* pInstrumentKey; |
InstrumentManager::instrument_id_t* pInstrumentKey; |
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}; |
}; |
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/** |
/** |
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pArg->pManager->DispatchResourceProgressEvent(*pArg->pInstrumentKey, localProgress); |
pArg->pManager->DispatchResourceProgressEvent(*pArg->pInstrumentKey, localProgress); |
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} |
} |
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std::vector<InstrumentResourceManager::instrument_id_t> InstrumentResourceManager::Instruments() { |
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return Entries(); |
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} |
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InstrumentManager::mode_t InstrumentResourceManager::GetMode(const instrument_id_t& ID) { |
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return static_cast<InstrumentManager::mode_t>(AvailabilityMode(ID)); |
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} |
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void InstrumentResourceManager::SetMode(const instrument_id_t& ID, InstrumentManager::mode_t Mode) { |
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dmsg(2,("gig::InstrumentResourceManager: setting mode for %s (Index=%d) to %d\n",ID.FileName.c_str(),ID.Index,Mode)); |
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SetAvailabilityMode(ID, static_cast<ResourceManager<InstrumentManager::instrument_id_t, ::gig::Instrument>::mode_t>(Mode)); |
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} |
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float InstrumentResourceManager::GetVolume(const instrument_id_t& ID) { |
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void* pCustomData = CustomData(ID); |
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const float fVolume = (pCustomData) ? *((float*)pCustomData) /* stored value */ : 1.0f /* default value */; |
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return fVolume; |
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} |
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void InstrumentResourceManager::SetVolume(const instrument_id_t& ID, float Volume) { |
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void* pCustomData = CustomData(ID); |
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if (Volume == 1.0f) { // if default volume ... |
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if (pCustomData) { // ... delete volume entry if necessary |
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delete (float*)pCustomData; |
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SetCustomData(ID, NULL); |
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} |
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} else { // if not default volume |
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if (!pCustomData) { // create volume entry if necessary |
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pCustomData = new float; |
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SetCustomData(ID, pCustomData); |
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} |
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*((float*)pCustomData) = Volume; |
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} |
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} |
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String InstrumentResourceManager::GetInstrumentName(instrument_id_t ID) { |
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return ""; // TODO: ... |
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} |
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::gig::Instrument* InstrumentResourceManager::Create(instrument_id_t Key, InstrumentConsumer* pConsumer, void*& pArg) { |
::gig::Instrument* InstrumentResourceManager::Create(instrument_id_t Key, InstrumentConsumer* pConsumer, void*& pArg) { |
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// get gig file from inernal gig file manager |
// get gig file from inernal gig file manager |
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::gig::File* pGig = Gigs.Borrow(Key.FileName, (GigConsumer*) Key.iInstrument); // conversion kinda hackish :/ |
::gig::File* pGig = Gigs.Borrow(Key.FileName, (GigConsumer*) Key.Index); // conversion kinda hackish :/ |
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// we pass this to the progress callback mechanism of libgig |
// we pass this to the progress callback mechanism of libgig |
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progress_callback_arg_t callbackArg; |
progress_callback_arg_t callbackArg; |
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progress.callback = OnInstrumentLoadingProgress; |
progress.callback = OnInstrumentLoadingProgress; |
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progress.custom = &callbackArg; |
progress.custom = &callbackArg; |
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dmsg(1,("Loading gig instrument...")); |
dmsg(1,("Loading gig instrument ('%s',%d)...",Key.FileName.c_str(),Key.Index)); |
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::gig::Instrument* pInstrument = pGig->GetInstrument(Key.iInstrument, &progress); |
::gig::Instrument* pInstrument = pGig->GetInstrument(Key.Index, &progress); |
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if (!pInstrument) { |
if (!pInstrument) { |
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std::stringstream msg; |
std::stringstream msg; |
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msg << "There's no instrument with index " << Key.iInstrument << "."; |
msg << "There's no instrument with index " << Key.Index << "."; |
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throw InstrumentResourceManagerException(msg.str()); |
throw InstrumentResourceManagerException(msg.str()); |
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} |
} |
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pGig->GetFirstSample(); // just to force complete instrument loading |
pGig->GetFirstSample(); // just to force complete instrument loading |
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while (pRgn) { |
while (pRgn) { |
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// we randomly schedule 90% for the .gig file loading and the remaining 10% now for sample caching |
// we randomly schedule 90% for the .gig file loading and the remaining 10% now for sample caching |
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const float localProgress = 0.9f + 0.1f * (float) iRegion / (float) pInstrument->Regions; |
const float localProgress = 0.9f + 0.1f * (float) iRegion / (float) pInstrument->Regions; |
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DispatchResourceProgressEvent(Key, localProgress); |
DispatchResourceProgressEvent(Key, localProgress); |
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if (pRgn->GetSample() && !pRgn->GetSample()->GetCache().Size) { |
if (pRgn->GetSample() && !pRgn->GetSample()->GetCache().Size) { |
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dmsg(2,("C")); |
dmsg(2,("C")); |
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CacheInitialSamples(pRgn->GetSample(), dynamic_cast<gig::EngineChannel*>(pConsumer)); |
CacheInitialSamples(pRgn->GetSample(), (gig::EngineChannel*) pConsumer); |
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} |
} |
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for (uint i = 0; i < pRgn->DimensionRegions; i++) { |
for (uint i = 0; i < pRgn->DimensionRegions; i++) { |
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CacheInitialSamples(pRgn->pDimensionRegions[i]->pSample, dynamic_cast<gig::EngineChannel*>(pConsumer)); |
CacheInitialSamples(pRgn->pDimensionRegions[i]->pSample, (gig::EngineChannel*) pConsumer); |
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} |
} |
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pRgn = pInstrument->GetNextRegion(); |
pRgn = pInstrument->GetNextRegion(); |
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// we need the following for destruction later |
// we need the following for destruction later |
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instr_entry_t* pEntry = new instr_entry_t; |
instr_entry_t* pEntry = new instr_entry_t; |
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pEntry->iInstrument = Key.iInstrument; |
pEntry->ID.FileName = Key.FileName; |
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pEntry->ID.Index = Key.Index; |
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pEntry->pGig = pGig; |
pEntry->pGig = pGig; |
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gig::EngineChannel* pEngineChannel = dynamic_cast<gig::EngineChannel*>(pConsumer); |
gig::EngineChannel* pEngineChannel = (gig::EngineChannel*) pConsumer; |
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// 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' |
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pEntry->MaxSamplesPerCycle = |
pEntry->MaxSamplesPerCycle = |
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(pEngineChannel->GetEngine()) ? dynamic_cast<gig::Engine*>(pEngineChannel->GetEngine())->pAudioOutputDevice->MaxSamplesPerCycle() |
(pEngineChannel && pEngineChannel->GetEngine()) ? dynamic_cast<gig::Engine*>(pEngineChannel->GetEngine())->pAudioOutputDevice->MaxSamplesPerCycle() |
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: GIG_RESOURCE_MANAGER_DEFAULT_MAX_SAMPLES_PER_CYCLE; |
: GIG_RESOURCE_MANAGER_DEFAULT_MAX_SAMPLES_PER_CYCLE; |
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pArg = pEntry; |
pArg = pEntry; |
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void InstrumentResourceManager::Destroy( ::gig::Instrument* pResource, void* pArg) { |
void InstrumentResourceManager::Destroy( ::gig::Instrument* pResource, void* pArg) { |
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instr_entry_t* pEntry = (instr_entry_t*) pArg; |
instr_entry_t* pEntry = (instr_entry_t*) pArg; |
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Gigs.HandBack(pEntry->pGig, (GigConsumer*) pEntry->iInstrument); // conversion kinda hackish :/ |
// remove volume entry if necessary |
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void* pCustomData = CustomData(pEntry->ID); |
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if (pCustomData) { |
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delete (float*)pCustomData; |
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SetCustomData(pEntry->ID, NULL); |
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} |
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// we don't need the .gig file here anymore |
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Gigs.HandBack(pEntry->pGig, (GigConsumer*) pEntry->ID.Index); // conversion kinda hackish :/ |
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delete pEntry; |
delete pEntry; |
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} |
} |
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// 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 |
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// the sample. |
// the sample. |
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const uint maxSamplesPerCycle = |
const uint maxSamplesPerCycle = |
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(pEngineChannel->GetEngine()) ? dynamic_cast<gig::Engine*>(pEngineChannel->GetEngine())->pAudioOutputDevice->MaxSamplesPerCycle() |
(pEngineChannel && pEngineChannel->GetEngine()) ? dynamic_cast<gig::Engine*>(pEngineChannel->GetEngine())->pAudioOutputDevice->MaxSamplesPerCycle() |
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: GIG_RESOURCE_MANAGER_DEFAULT_MAX_SAMPLES_PER_CYCLE; |
: GIG_RESOURCE_MANAGER_DEFAULT_MAX_SAMPLES_PER_CYCLE; |
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const uint neededSilenceSamples = (maxSamplesPerCycle << CONFIG_MAX_PITCH) + 3; |
const uint neededSilenceSamples = (maxSamplesPerCycle << CONFIG_MAX_PITCH) + 3; |
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const uint currentlyCachedSilenceSamples = pSample->GetCache().NullExtensionSize / pSample->FrameSize; |
const uint currentlyCachedSilenceSamples = pSample->GetCache().NullExtensionSize / pSample->FrameSize; |