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#include "../../common/Exception.h" |
#include "../../common/Exception.h" |
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#include "../../common/ResourceManager.h" |
#include "../../common/ResourceManager.h" |
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#include "../../drivers/audio/AudioOutputDevice.h" |
#include "../../drivers/audio/AudioOutputDevice.h" |
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#include "../InstrumentManager.h" |
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//namespace libgig = gig; |
//namespace libgig = gig; |
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// just symbol prototyping |
// just symbol prototyping |
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class EngineChannel; |
class EngineChannel; |
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/** |
/** @brief Gig instrument manager |
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* Explicitly identifies a Gigasampler instrument. |
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*/ |
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struct instrument_id_t { |
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String FileName; ///< name of the file which contains the instrument |
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uint iInstrument; ///< index of the instrument in the instrument file |
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// TODO: we should extend operator<() so it will be able to detect that file x and file y are actually the same files, e.g. because one of them is a symlink / share the same inode |
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bool operator<(const instrument_id_t& o) const { |
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return (iInstrument < o.iInstrument || (iInstrument == o.iInstrument && FileName < o.FileName)); |
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} |
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}; |
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/** Gig instrument manager |
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* |
* |
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* Manager to share gig instruments between multiple Gigasampler |
* Manager to share gig instruments between multiple Gigasampler |
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* engine channels. The engine channels Borrow() instruments when they |
* engine channels. The engine channels Borrow() instruments when they |
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* InstrumentResourceManager loads the corresponding gig file and gig |
* InstrumentResourceManager loads the corresponding gig file and gig |
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* instrument if needed, if it's already in use by another engine |
* instrument if needed, if it's already in use by another engine |
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* channel, then it just returns the same resource, if an gig |
* channel, then it just returns the same resource, if an gig |
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* instrument / file is not in use by any engine channel anymore, then |
* instrument / file is not needed anymore, then it will be freed from |
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* it will be freed from memory. |
* memory. |
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*/ |
*/ |
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class InstrumentResourceManager : public ResourceManager<instrument_id_t, ::gig::Instrument> { |
class InstrumentResourceManager : public InstrumentManager, public ResourceManager<InstrumentManager::instrument_id_t, ::gig::Instrument> { |
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public: |
public: |
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virtual ~InstrumentResourceManager() {} |
virtual ~InstrumentResourceManager() {} |
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static void OnInstrumentLoadingProgress(::gig::progress_t* pProgress); |
static void OnInstrumentLoadingProgress(::gig::progress_t* pProgress); |
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// implementation of derived abstract methods from 'InstrumentManager' |
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virtual std::vector<instrument_id_t> Instruments(); |
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virtual InstrumentManager::mode_t GetMode(const instrument_id_t& ID); |
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virtual void SetMode(const instrument_id_t& ID, InstrumentManager::mode_t Mode); |
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virtual float GetVolume(const instrument_id_t& ID); |
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virtual void SetVolume(const instrument_id_t& ID, float Volume); |
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virtual String GetInstrumentName(instrument_id_t ID); |
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protected: |
protected: |
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virtual ::gig::Instrument* Create(instrument_id_t Key, InstrumentConsumer* pConsumer, void*& pArg); |
virtual ::gig::Instrument* Create(instrument_id_t Key, InstrumentConsumer* pConsumer, void*& pArg); |
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virtual void Destroy(::gig::Instrument* pResource, void* pArg); |
virtual void Destroy(::gig::Instrument* pResource, void* pArg); |
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virtual void OnBorrow(::gig::Instrument* pResource, InstrumentConsumer* pConsumer, void*& pArg); |
virtual void OnBorrow(::gig::Instrument* pResource, InstrumentConsumer* pConsumer, void*& pArg); |
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private: |
private: |
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struct instr_entry_t { |
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::gig::File* pGig; |
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uint iInstrument; |
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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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typedef ResourceConsumer< ::gig::File> GigConsumer; |
typedef ResourceConsumer< ::gig::File> GigConsumer; |
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class GigResourceManager : public ResourceManager<String, ::gig::File> { |
class GigResourceManager : public ResourceManager<String, ::gig::File> { |