/[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 1653 - (show annotations) (download) (as text)
Wed Jan 30 01:51:46 2008 UTC (9 years, 9 months ago) by schoenebeck
File MIME type: text/x-c++hdr
File size: 8673 byte(s)
* added support for notifying instrument editors on note-on / note-off
  events (e.g. to highlight the pressed keys on the virtual keyboard
  of gigedit)
* fixed return value of recently added Thread::TestCancel() method
* be verbose on DLL load errors (on Linux)

1 /***************************************************************************
2 * *
3 * LinuxSampler - modular, streaming capable sampler *
4 * *
5 * Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6 * Copyright (C) 2005 - 2008 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/global.h"
32 #include "../../common/ResourceManager.h"
33 #include "../../drivers/audio/AudioOutputDevice.h"
34 #include "../InstrumentManager.h"
35 #include "../../common/ArrayList.h"
36
37 //namespace libgig = gig;
38
39 namespace LinuxSampler { namespace gig {
40
41 typedef ResourceConsumer< ::gig::Instrument> InstrumentConsumer;
42
43 }} // namespace LinuxSampler::gig
44
45 #include "EngineChannel.h"
46 #include "Engine.h"
47 #include "../../plugins/InstrumentEditor.h"
48
49 namespace LinuxSampler { namespace gig {
50
51 // just symbol prototyping
52 class EngineChannel;
53 class Engine;
54
55 /** @brief Gig instrument manager
56 *
57 * Manager to share gig instruments between multiple Gigasampler
58 * engine channels. The engine channels Borrow() instruments when they
59 * need them and HandBack() when they don't need them anymore. The
60 * InstrumentResourceManager loads the corresponding gig file and gig
61 * instrument if needed, if it's already in use by another engine
62 * channel, then it just returns the same resource, if an gig
63 * instrument / file is not needed anymore, then it will be freed from
64 * memory.
65 */
66 class InstrumentResourceManager : public InstrumentManager, public ResourceManager<InstrumentManager::instrument_id_t, ::gig::Instrument>, public InstrumentEditorListener {
67 public:
68 InstrumentResourceManager() : Gigs(this) {}
69 virtual ~InstrumentResourceManager() {}
70 static void OnInstrumentLoadingProgress(::gig::progress_t* pProgress);
71
72 // implementation of derived abstract methods from 'InstrumentManager'
73 virtual std::vector<instrument_id_t> Instruments();
74 virtual InstrumentManager::mode_t GetMode(const instrument_id_t& ID);
75 virtual void SetMode(const instrument_id_t& ID, InstrumentManager::mode_t Mode);
76 virtual String GetInstrumentName(instrument_id_t ID);
77 virtual String GetInstrumentDataStructureName(instrument_id_t ID);
78 virtual String GetInstrumentDataStructureVersion(instrument_id_t ID);
79 virtual void LaunchInstrumentEditor(instrument_id_t ID) throw (InstrumentManagerException);
80 virtual std::vector<instrument_id_t> GetInstrumentFileContent(String File) throw (InstrumentManagerException);
81 virtual instrument_info_t GetInstrumentInfo(instrument_id_t ID) throw (InstrumentManagerException);
82
83 // implementation of derived abstract methods from 'InstrumentEditorListener'
84 virtual void OnInstrumentEditorQuit(InstrumentEditor* pSender);
85 virtual void OnSamplesToBeRemoved(std::set<void*> Samples, InstrumentEditor* pSender);
86 virtual void OnSamplesRemoved(InstrumentEditor* pSender);
87 virtual void OnDataStructureToBeChanged(void* pStruct, String sStructType, InstrumentEditor* pSender);
88 virtual void OnDataStructureChanged(void* pStruct, String sStructType, InstrumentEditor* pSender);
89 virtual void OnSampleReferenceChanged(void* pOldSample, void* pNewSample, InstrumentEditor* pSender);
90
91 void HandBackInstrument(::gig::Instrument* pResource, InstrumentConsumer* pConsumer,
92 RTList< ::gig::DimensionRegion*>* pDimRegionsInUse);
93 void HandBackDimReg(::gig::DimensionRegion* pDimReg);
94
95 void TrySendNoteOnToEditors(uint8_t Key, uint8_t Velocity, ::gig::Instrument* pInstrument);
96 void TrySendNoteOffToEditors(uint8_t Key, uint8_t Velocity, ::gig::Instrument* pInstrument);
97
98 protected:
99 // implementation of derived abstract methods from 'ResourceManager'
100 virtual ::gig::Instrument* Create(instrument_id_t Key, InstrumentConsumer* pConsumer, void*& pArg);
101 virtual void Destroy(::gig::Instrument* pResource, void* pArg);
102 virtual void OnBorrow(::gig::Instrument* pResource, InstrumentConsumer* pConsumer, void*& pArg);
103 private:
104 typedef ResourceConsumer< ::gig::File> GigConsumer;
105
106 class GigResourceManager : public ResourceManager<String, ::gig::File> {
107 protected:
108 // implementation of derived abstract methods from 'ResourceManager'
109 virtual ::gig::File* Create(String Key, GigConsumer* pConsumer, void*& pArg);
110 virtual void Destroy(::gig::File* pResource, void* pArg);
111 virtual void OnBorrow(::gig::File* pResource, GigConsumer* pConsumer, void*& pArg) {} // ignore
112 public:
113 GigResourceManager(InstrumentResourceManager* parent) : parent(parent) {}
114 virtual ~GigResourceManager() {}
115 private:
116 InstrumentResourceManager* parent;
117 } Gigs;
118
119 void CacheInitialSamples(::gig::Sample* pSample, gig::EngineChannel* pEngineChannel);
120 void CacheInitialSamples(::gig::Sample* pSample, gig::Engine* pEngine);
121 void UncacheInitialSamples(::gig::Sample* pSample);
122 std::vector< ::gig::Instrument*> GetInstrumentsCurrentlyUsedOf(::gig::File* pFile, bool bLock);
123 std::set<gig::Engine*> GetEnginesUsing(::gig::Instrument* pFile, bool bLock);
124 std::set<gig::Engine*> GetEnginesUsing(::gig::File* pFile, bool bLock);
125 bool SampleReferencedByInstrument(::gig::Sample* pSample, ::gig::Instrument* pInstrument);
126 void SuspendEnginesUsing(::gig::Instrument* pInstrument);
127 void SuspendEnginesUsing(::gig::File* pFile);
128 void ResumeAllEngines();
129
130 struct dimreg_info_t {
131 int refCount;
132 ::gig::File* file;
133 ::RIFF::File* riff;
134 };
135 Mutex DimRegInfoMutex; ///< protects the DimRegInfo and SampleRefCount maps from concurrent access by the instrument loader and disk threads
136 std::map< ::gig::DimensionRegion*, dimreg_info_t> DimRegInfo; ///< contains dimension regions that are still in use but belong to released instrument
137 std::map< ::gig::Sample*, int> SampleRefCount; ///< contains samples that are still in use but belong to a released instrument
138
139 Mutex InstrumentEditorProxiesMutex; ///< protects the 'InstrumentEditorProxies' map
140 ArrayList<InstrumentConsumer*> InstrumentEditorProxies; ///< here we store the objects that react on instrument specific notifications on behalf of the respective instrument editor
141 std::set<Engine*> suspendedEngines; ///< all engines currently completely suspended
142 Mutex suspendedEnginesMutex; ///< protects 'suspendedEngines' set
143 };
144
145 }} // namespace LinuxSampler::gig
146
147 #endif // __LS_GIG_INSTRUMENTRESOURCEMANAGER_H__

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