/[svn]/linuxsampler/trunk/src/engines/gig/InstrumentResourceManager.h
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Contents of /linuxsampler/trunk/src/engines/gig/InstrumentResourceManager.h

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Revision 2012 - (show annotations) (download) (as text)
Fri Oct 23 17:53:17 2009 UTC (10 years, 1 month ago) by iliev
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File size: 8038 byte(s)
* Refactoring: moved the independent code from
  the Gigasampler format engine to base classes
* SFZ format engine: experimental code (not usable yet)
* SoundFont format engine: experimental code (not usable yet)
* Fixed crash which may occur when MIDI key + transpose is out of range

1 /***************************************************************************
2 * *
3 * LinuxSampler - modular, streaming capable sampler *
4 * *
5 * Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6 * Copyright (C) 2005 - 2009 Christian Schoenebeck *
7 * *
8 * 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 *
10 * the Free Software Foundation; either version 2 of the License, or *
11 * (at your option) any later version. *
12 * *
13 * This program is distributed in the hope that it will be useful, *
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16 * GNU General Public License for more details. *
17 * *
18 * You should have received a copy of the GNU General Public License *
19 * along with this program; if not, write to the Free Software *
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
21 * MA 02111-1307 USA *
22 ***************************************************************************/
23
24 #ifndef __LS_GIG_INSTRUMENTRESOURCEMANAGER_H__
25 #define __LS_GIG_INSTRUMENTRESOURCEMANAGER_H__
26
27 #include "../../common/global.h"
28
29 #include <gig.h>
30
31 #include "../../common/Pool.h"
32 #include "../../common/ResourceManager.h"
33 #include "../InstrumentManagerBase.h"
34 #include "../../drivers/audio/AudioOutputDevice.h"
35 #include "../InstrumentManager.h"
36 #include "../../common/ArrayList.h"
37
38 //namespace libgig = gig;
39
40 namespace LinuxSampler { namespace gig {
41
42 typedef ResourceConsumer< ::gig::Instrument> InstrumentConsumer;
43
44 }} // namespace LinuxSampler::gig
45
46 #include "../../plugins/InstrumentEditor.h"
47
48 namespace LinuxSampler { namespace gig {
49 class Engine;
50 class EngineChannel;
51
52 /** @brief Gig instrument manager
53 *
54 * Manager to share gig instruments between multiple Gigasampler
55 * engine channels. The engine channels Borrow() instruments when they
56 * need them and HandBack() when they don't need them anymore. The
57 * InstrumentResourceManager loads the corresponding gig file and gig
58 * instrument if needed, if it's already in use by another engine
59 * channel, then it just returns the same resource, if an gig
60 * instrument / file is not needed anymore, then it will be freed from
61 * memory.
62 */
63 class InstrumentResourceManager : public InstrumentManagerBase< ::gig::File, ::gig::Instrument, ::gig::DimensionRegion, ::gig::Sample>, public InstrumentEditorListener {
64 public:
65 InstrumentResourceManager() : Gigs(this) {}
66 virtual ~InstrumentResourceManager() {}
67 static void OnInstrumentLoadingProgress(::gig::progress_t* pProgress);
68
69 // implementation of derived abstract methods from 'InstrumentManager'
70 virtual std::vector<instrument_id_t> Instruments();
71 virtual String GetInstrumentName(instrument_id_t ID);
72 virtual String GetInstrumentDataStructureName(instrument_id_t ID);
73 virtual String GetInstrumentDataStructureVersion(instrument_id_t ID);
74 virtual InstrumentEditor* LaunchInstrumentEditor(instrument_id_t ID, void* pUserData = NULL) throw (InstrumentManagerException);
75 virtual std::vector<instrument_id_t> GetInstrumentFileContent(String File) throw (InstrumentManagerException);
76 virtual instrument_info_t GetInstrumentInfo(instrument_id_t ID) throw (InstrumentManagerException);
77
78 // implementation of derived abstract methods from 'InstrumentEditorListener'
79 virtual void OnInstrumentEditorQuit(InstrumentEditor* pSender);
80 virtual void OnSamplesToBeRemoved(std::set<void*> Samples, InstrumentEditor* pSender);
81 virtual void OnSamplesRemoved(InstrumentEditor* pSender);
82 virtual void OnDataStructureToBeChanged(void* pStruct, String sStructType, InstrumentEditor* pSender);
83 virtual void OnDataStructureChanged(void* pStruct, String sStructType, InstrumentEditor* pSender);
84 virtual void OnSampleReferenceChanged(void* pOldSample, void* pNewSample, InstrumentEditor* pSender);
85
86 #if 0 // currently unused :
87 void TrySendNoteOnToEditors(uint8_t Key, uint8_t Velocity, ::gig::Instrument* pInstrument);
88 void TrySendNoteOffToEditors(uint8_t Key, uint8_t Velocity, ::gig::Instrument* pInstrument);
89 #endif // unused
90
91 protected:
92 // implementation of derived abstract methods from 'ResourceManager'
93 virtual ::gig::Instrument* Create(instrument_id_t Key, InstrumentConsumer* pConsumer, void*& pArg);
94 virtual void Destroy(::gig::Instrument* pResource, void* pArg);
95 virtual void OnBorrow(::gig::Instrument* pResource, InstrumentConsumer* pConsumer, void*& pArg);
96 virtual void CacheInitialSamples(::gig::Sample* pSample, AbstractEngine* pEngine);
97 virtual void CacheInitialSamples(::gig::Sample* pSample, EngineChannel* pEngineChannel);
98 virtual void DeleteRegionIfNotUsed(::gig::DimensionRegion* pRegion, region_info_t* pRegInfo);
99 virtual void DeleteSampleIfNotUsed(::gig::Sample* pSample, region_info_t* pRegInfo);
100 private:
101 typedef ResourceConsumer< ::gig::File> GigConsumer;
102
103 class GigResourceManager : public ResourceManager<String, ::gig::File> {
104 protected:
105 // implementation of derived abstract methods from 'ResourceManager'
106 virtual ::gig::File* Create(String Key, GigConsumer* pConsumer, void*& pArg);
107 virtual void Destroy(::gig::File* pResource, void* pArg);
108 virtual void OnBorrow(::gig::File* pResource, GigConsumer* pConsumer, void*& pArg) {} // ignore
109 public:
110 GigResourceManager(InstrumentResourceManager* parent) : parent(parent) {}
111 virtual ~GigResourceManager() {}
112 private:
113 InstrumentResourceManager* parent;
114 } Gigs;
115
116 void UncacheInitialSamples(::gig::Sample* pSample);
117 std::vector< ::gig::Instrument*> GetInstrumentsCurrentlyUsedOf(::gig::File* pFile, bool bLock);
118 std::set<EngineChannel*> GetEngineChannelsUsing(::gig::Instrument* pInstrument, bool bLock);
119 std::set<Engine*> GetEnginesUsing(::gig::Instrument* pInstrument, bool bLock);
120 std::set<Engine*> GetEnginesUsing(::gig::File* pFile, bool bLock);
121 bool SampleReferencedByInstrument(::gig::Sample* pSample, ::gig::Instrument* pInstrument);
122 void SuspendEnginesUsing(::gig::Instrument* pInstrument);
123 void SuspendEnginesUsing(::gig::File* pFile);
124 void ResumeAllEngines();
125
126 Mutex InstrumentEditorProxiesMutex; ///< protects the 'InstrumentEditorProxies' map
127 ArrayList<InstrumentConsumer*> InstrumentEditorProxies; ///< here we store the objects that react on instrument specific notifications on behalf of the respective instrument editor
128 std::set<Engine*> suspendedEngines; ///< all engines currently completely suspended
129 Mutex suspendedEnginesMutex; ///< protects 'suspendedEngines' set
130 };
131
132 }} // namespace LinuxSampler::gig
133
134 #endif // __LS_GIG_INSTRUMENTRESOURCEMANAGER_H__

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