/[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 1212 - (show annotations) (download) (as text)
Tue May 29 23:59:36 2007 UTC (16 years, 10 months ago) by schoenebeck
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* added highly experimental support for on-the-fly instrument editing
  within the sampler's process (by using instrument editor plugins),
  you'll notice the new "Registered instrument editors:" message on
  startup, the plugin path can be overridden at compile time with
  ./configure --enable-plugin-dir=/some/dir
* added a new LSCP command "EDIT INSTRUMENT <sampler-channel>" to spawn
  a matching instrument editor for the instrument on the given sampler
  channel (LSCP command syntax might be subject to change soon)
* config.h is not going to be installed along with liblinuxsampler's
  API header files anymore (not necessary anymore)
* take care of $(DESTDIR) when creating the instruments DB on 'make
  install' rule (needed for packaging and cross compilation)
* bumped version to 0.4.0.5cvs

1 /***************************************************************************
2 * *
3 * LinuxSampler - modular, streaming capable sampler *
4 * *
5 * Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6 * Copyright (C) 2005 - 2007 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
36 //namespace libgig = gig;
37
38 namespace LinuxSampler { namespace gig {
39
40 typedef ResourceConsumer< ::gig::Instrument> InstrumentConsumer;
41
42 }} // namespace LinuxSampler::gig
43
44 #include "EngineChannel.h"
45 #include "Engine.h"
46 #include "../InstrumentEditor.h"
47
48 namespace LinuxSampler { namespace gig {
49
50 // just symbol prototyping
51 class EngineChannel;
52
53 /** @brief Gig instrument manager
54 *
55 * Manager to share gig instruments between multiple Gigasampler
56 * engine channels. The engine channels Borrow() instruments when they
57 * need them and HandBack() when they don't need them anymore. The
58 * InstrumentResourceManager loads the corresponding gig file and gig
59 * instrument if needed, if it's already in use by another engine
60 * channel, then it just returns the same resource, if an gig
61 * instrument / file is not needed anymore, then it will be freed from
62 * memory.
63 */
64 class InstrumentResourceManager : public InstrumentManager, public ResourceManager<InstrumentManager::instrument_id_t, ::gig::Instrument>, public InstrumentEditorListener {
65 public:
66 InstrumentResourceManager() : Gigs(this) {}
67 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:
87 virtual ::gig::Instrument* Create(instrument_id_t Key, InstrumentConsumer* pConsumer, void*& pArg);
88 virtual void Destroy(::gig::Instrument* pResource, void* pArg);
89 virtual void OnBorrow(::gig::Instrument* pResource, InstrumentConsumer* pConsumer, void*& pArg);
90 private:
91 typedef ResourceConsumer< ::gig::File> GigConsumer;
92
93 class GigResourceManager : public ResourceManager<String, ::gig::File> {
94 protected:
95 virtual ::gig::File* Create(String Key, GigConsumer* pConsumer, void*& pArg);
96 virtual void Destroy(::gig::File* pResource, void* pArg);
97 virtual void OnBorrow(::gig::File* pResource, GigConsumer* pConsumer, void*& pArg) {} // ignore
98 public:
99 GigResourceManager(InstrumentResourceManager* parent) : parent(parent) {}
100 virtual ~GigResourceManager() {}
101 private:
102 InstrumentResourceManager* parent;
103 } Gigs;
104
105 void CacheInitialSamples(::gig::Sample* pSample, gig::EngineChannel* pEngineChannel);
106
107 struct dimreg_info_t {
108 int refCount;
109 ::gig::File* file;
110 ::RIFF::File* riff;
111 };
112 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
121
122 #endif // __LS_GIG_INSTRUMENTRESOURCEMANAGER_H__

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