/[svn]/linuxsampler/trunk/src/engines/sf2/InstrumentResourceManager.h
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Contents of /linuxsampler/trunk/src/engines/sf2/InstrumentResourceManager.h

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Revision 2326 - (show annotations) (download) (as text)
Thu Mar 8 19:40:14 2012 UTC (9 years, 4 months ago) by persson
File MIME type: text/x-c++hdr
File size: 5261 byte(s)
* bugfix: instrument loading crashed for sfz and sf2 in Ardour (#176)
* more thread safety fixes for the instrument loading thread

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 * Copyright (C) 2009 - 2012 Christian Schoenebeck and Grigor Iliev *
8 * *
9 * This program is free software; you can redistribute it and/or modify *
10 * it under the terms of the GNU General Public License as published by *
11 * the Free Software Foundation; either version 2 of the License, or *
12 * (at your option) any later version. *
13 * *
14 * This program is distributed in the hope that it will be useful, *
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
17 * GNU General Public License for more details. *
18 * *
19 * You should have received a copy of the GNU General Public License *
20 * along with this program; if not, write to the Free Software *
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
22 * MA 02111-1307 USA *
23 ***************************************************************************/
24
25 #ifndef __LS_SF2_INSTRUMENTRESOURCEMANAGER_H__
26 #define __LS_SF2_INSTRUMENTRESOURCEMANAGER_H__
27
28 #include "../../common/global.h"
29
30 #include <SF.h>
31
32 #include "../../common/global.h"
33 #include "../../common/Pool.h"
34 #include "../../common/ResourceManager.h"
35 #include "../../drivers/audio/AudioOutputDevice.h"
36 #include "../InstrumentManagerBase.h"
37 #include "../../common/ArrayList.h"
38
39 namespace LinuxSampler { namespace sf2 {
40
41 typedef ResourceConsumer< ::sf2::Preset> InstrumentConsumer;
42
43 }} // namespace LinuxSampler::sf2
44
45 #include "../../plugins/InstrumentEditor.h"
46
47 namespace LinuxSampler { namespace sf2 {
48 class Engine;
49 class EngineChannel;
50
51 /** @brief sf2 instrument manager
52 *
53 * Manager to share sf2 instruments between multiple sf2
54 * engine channels. The engine channels Borrow() instruments when they
55 * need them and HandBack() when they don't need them anymore. The
56 * InstrumentResourceManager loads the corresponding sf2 file and sf2
57 * instrument if needed, if it's already in use by another engine
58 * channel, then it just returns the same resource, if a sf2
59 * instrument / file is not needed anymore, then it will be freed from
60 * memory.
61 */
62 class InstrumentResourceManager : public InstrumentManagerBase< ::sf2::File, ::sf2::Preset, ::sf2::Region, ::sf2::Sample> {
63 public:
64 InstrumentResourceManager() : Sf2s(this) {}
65 virtual ~InstrumentResourceManager() {}
66
67 // implementation of derived abstract methods from 'InstrumentManager'
68 virtual String GetInstrumentName(instrument_id_t ID);
69 virtual std::vector<instrument_id_t> GetInstrumentFileContent(String File) throw (InstrumentManagerException);
70 virtual instrument_info_t GetInstrumentInfo(instrument_id_t ID) throw (InstrumentManagerException);
71
72 protected:
73 // implementation of derived abstract methods from 'ResourceManager'
74 virtual ::sf2::Preset* Create(instrument_id_t Key, InstrumentConsumer* pConsumer, void*& pArg);
75 virtual void Destroy(::sf2::Preset* pResource, void* pArg);
76 virtual void DeleteRegionIfNotUsed(::sf2::Region* pRegion, region_info_t* pRegInfo);
77 virtual void DeleteSampleIfNotUsed(::sf2::Sample* pSample, region_info_t* pRegInfo);
78 private:
79 typedef ResourceConsumer< ::sf2::File> Sf2Consumer;
80
81 class Sf2ResourceManager : public ResourceManager<String, ::sf2::File> {
82 protected:
83 // implementation of derived abstract methods from 'ResourceManager'
84 virtual ::sf2::File* Create(String Key, Sf2Consumer* pConsumer, void*& pArg);
85 virtual void Destroy(::sf2::File* pResource, void* pArg);
86 virtual void OnBorrow(::sf2::File* pResource, Sf2Consumer* pConsumer, void*& pArg) {} // ignore
87 public:
88 Sf2ResourceManager(InstrumentResourceManager* parent) : parent(parent) {}
89 virtual ~Sf2ResourceManager() {}
90 friend class InstrumentResourceManager;
91 private:
92 InstrumentResourceManager* parent;
93 } Sf2s;
94
95 int GetSfInstrumentCount(::sf2::File* pFile);
96 ::sf2::Preset* GetSfInstrument(::sf2::File* pFile, int idx);
97 };
98
99 }} // namespace LinuxSampler::sf2
100
101 #endif // __LS_SF2_INSTRUMENTRESOURCEMANAGER_H__

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