/[svn]/linuxsampler/trunk/src/engines/gig/InstrumentResourceManager.h
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revision 505 by schoenebeck, Tue May 3 01:00:25 2005 UTC revision 1212 by schoenebeck, Tue May 29 23:59:36 2007 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 Christian Schoenebeck                              *   *   Copyright (C) 2005 - 2007 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 26  Line 26 
26    
27  #include "../../common/global.h"  #include "../../common/global.h"
28    
 #if DEBUG_HEADERS  
 # warning InstrumentResourceManager.h included  
 #endif // DEBUG_HEADERS  
   
29  #include <gig.h>  #include <gig.h>
30    
31  #include "../../common/global.h"  #include "../../common/global.h"
 #include "../../common/LinuxSamplerException.h"  
32  #include "../../common/ResourceManager.h"  #include "../../common/ResourceManager.h"
33  #include "../../drivers/audio/AudioOutputDevice.h"  #include "../../drivers/audio/AudioOutputDevice.h"
34    #include "../InstrumentManager.h"
 // preload 64k samples = 128kB of data in RAM for 16 bit mono samples  
 #define NUM_RAM_PRELOAD_SAMPLES 32768  
35    
36  //namespace libgig = gig;  //namespace libgig = gig;
37    
# Line 50  namespace LinuxSampler { namespace gig { Line 43  namespace LinuxSampler { namespace gig {
43    
44  #include "EngineChannel.h"  #include "EngineChannel.h"
45  #include "Engine.h"  #include "Engine.h"
46    #include "../InstrumentEditor.h"
47    
48  namespace LinuxSampler { namespace gig {  namespace LinuxSampler { namespace gig {
49    
50      // just symbol prototyping      // just symbol prototyping
51      class EngineChannel;      class EngineChannel;
52    
53      /**      /** @brief Gig instrument manager
      * Explicitly identifies a Gigasampler instrument.  
      */  
     struct instrument_id_t {  
         String FileName;    ///< name of the file which contains the instrument  
         uint   iInstrument; ///< index of the instrument in the instrument file  
   
         // 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  
         bool operator<(const instrument_id_t& o) const {  
             return (iInstrument < o.iInstrument || (iInstrument == o.iInstrument && FileName < o.FileName));  
         }  
     };  
   
     /** Gig instrument manager  
54       *       *
55       * Manager to share gig instruments between multiple Gigasampler       * Manager to share gig instruments between multiple Gigasampler
56       * engine channels. The engine channels Borrow() instruments when they       * engine channels. The engine channels Borrow() instruments when they
# Line 77  namespace LinuxSampler { namespace gig { Line 58  namespace LinuxSampler { namespace gig {
58       * InstrumentResourceManager loads the corresponding gig file and gig       * InstrumentResourceManager loads the corresponding gig file and gig
59       * instrument if needed, if it's already in use by another engine       * instrument if needed, if it's already in use by another engine
60       * channel, then it just returns the same resource, if an gig       * channel, then it just returns the same resource, if an gig
61       * instrument / file is not in use by any engine channel anymore, then       * instrument / file is not needed anymore, then it will be freed from
62       * it will be freed from memory.       * memory.
63       */       */
64      class InstrumentResourceManager : public ResourceManager<instrument_id_t, ::gig::Instrument> {      class InstrumentResourceManager : public InstrumentManager, public ResourceManager<InstrumentManager::instrument_id_t, ::gig::Instrument>, public InstrumentEditorListener {
65          public:          public:
66                InstrumentResourceManager() : Gigs(this) {}
67              virtual ~InstrumentResourceManager() {}              virtual ~InstrumentResourceManager() {}
68                static void OnInstrumentLoadingProgress(::gig::progress_t* pProgress);
69    
70                // implementation of derived abstract methods from 'InstrumentManager'
71                virtual std::vector<instrument_id_t> Instruments();
72                virtual InstrumentManager::mode_t GetMode(const instrument_id_t& ID);
73                virtual void SetMode(const instrument_id_t& ID, InstrumentManager::mode_t Mode);
74                virtual String GetInstrumentName(instrument_id_t ID);
75                virtual String GetInstrumentTypeName(instrument_id_t ID);
76                virtual String GetInstrumentTypeVersion(instrument_id_t ID);
77                virtual void LaunchInstrumentEditor(instrument_id_t ID) throw (InstrumentManagerException);
78    
79                // implementation of derived abstract method from 'InstrumentEditorListener'
80                virtual void OnInstrumentEditorQuit(InstrumentEditor* pSender);
81    
82                void HandBackInstrument(::gig::Instrument* pResource, InstrumentConsumer* pConsumer,
83                                        ::gig::DimensionRegion** dimRegionsInUse);
84                void HandBackDimReg(::gig::DimensionRegion* pDimReg);
85    
86          protected:          protected:
87              virtual ::gig::Instrument* Create(instrument_id_t Key, InstrumentConsumer* pConsumer, void*& pArg);              virtual ::gig::Instrument* Create(instrument_id_t Key, InstrumentConsumer* pConsumer, void*& pArg);
88              virtual void               Destroy(::gig::Instrument* pResource, void* pArg);              virtual void               Destroy(::gig::Instrument* pResource, void* pArg);
89              virtual void               OnBorrow(::gig::Instrument* pResource, InstrumentConsumer* pConsumer, void*& pArg);              virtual void               OnBorrow(::gig::Instrument* pResource, InstrumentConsumer* pConsumer, void*& pArg);
90          private:          private:
             struct instr_entry_t {  
                 ::gig::File* pGig;  
                 uint         iInstrument;  
                 uint         MaxSamplesPerCycle; ///< if some engine requests an already allocated instrument with a higher value, we have to reallocate the instrument  
             };  
   
91              typedef ResourceConsumer< ::gig::File> GigConsumer;              typedef ResourceConsumer< ::gig::File> GigConsumer;
92    
93              class GigResourceManager : public ResourceManager<String, ::gig::File> {              class GigResourceManager : public ResourceManager<String, ::gig::File> {
# Line 102  namespace LinuxSampler { namespace gig { Line 96  namespace LinuxSampler { namespace gig {
96                      virtual void         Destroy(::gig::File* pResource, void* pArg);                      virtual void         Destroy(::gig::File* pResource, void* pArg);
97                      virtual void         OnBorrow(::gig::File* pResource, GigConsumer* pConsumer, void*& pArg) {} // ignore                      virtual void         OnBorrow(::gig::File* pResource, GigConsumer* pConsumer, void*& pArg) {} // ignore
98                  public:                  public:
99                        GigResourceManager(InstrumentResourceManager* parent) : parent(parent) {}
100                      virtual ~GigResourceManager() {}                      virtual ~GigResourceManager() {}
101                    private:
102                        InstrumentResourceManager* parent;
103              } Gigs;              } Gigs;
104    
105              void CacheInitialSamples(::gig::Sample* pSample, gig::EngineChannel* pEngineChannel);              void CacheInitialSamples(::gig::Sample* pSample, gig::EngineChannel* pEngineChannel);
     };  
106    
107      /**              struct dimreg_info_t {
108       * Will be thrown by the InstrumentResourceManager on errors.                  int           refCount;
109       */                  ::gig::File*  file;
110      class InstrumentResourceManagerException : public LinuxSamplerException {                  ::RIFF::File* riff;
111          public:              };
112              InstrumentResourceManagerException(String msg) : LinuxSamplerException(msg) {}              Mutex DimRegInfoMutex; ///< protects the DimRegInfo and SampleRefCount maps from concurrent access by the instrument loader and disk threads
113                std::map< ::gig::DimensionRegion*, dimreg_info_t> DimRegInfo; ///< contains dimension regions that are still in use but belong to released instrument
114                std::map< ::gig::Sample*, int> SampleRefCount; ///< contains samples that are still in use but belong to a released instrument
115    
116                Mutex InstrumentEditorProxiesMutex; ///< protects the 'InstrumentEditorProxies' map
117                std::map<InstrumentEditor*, InstrumentConsumer*> InstrumentEditorProxies; ///< here we store the objects that react on instrument specific notifications on behalf of the respective instrument editor
118      };      };
119    
120  }} // namespace LinuxSampler::gig  }} // namespace LinuxSampler::gig
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