src/engines/InstrumentManagerBase.h

/***************************************************************************
 *                                                                         *
 *   LinuxSampler - modular, streaming capable sampler                     *
 *                                                                         *
 *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
 *   Copyright (C) 2005 - 2008 Christian Schoenebeck                       *
 *   Copyright (C) 2009 Christian Schoenebeck and Grigor Iliev             *
 *   Copyright (C) 2010-2016 Christian Schoenebeck and Andreas Persson     *
 *                                                                         *
 *   This library is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This library is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this library; if not, write to the Free Software           *
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,                 *
 *   MA  02111-1307  USA                                                   *
 ***************************************************************************/

#ifndef __LS_INSTRUMENTMANAGERBASE_H__
#define __LS_INSTRUMENTMANAGERBASE_H__

#include "common/AbstractInstrumentManager.h"
#include "../drivers/audio/AudioOutputDeviceFactory.h"
#include "AbstractEngine.h"
#include "AbstractEngineChannel.h"

// We need to know the maximum number of sample points which are going to
// be processed for each render cycle of the audio output driver, to know
// how much initial sample points we need to cache into RAM. If the given
// sampler channel does not have an audio output device assigned yet
// though, we simply use this default value.
#define RESOURCE_MANAGER_DEFAULT_MAX_SAMPLES_PER_CYCLE     128

namespace LinuxSampler {

    template <class F /* Instrument File */, class I /* Instrument */, class R /* Regions */, class S /*Sample */>
    class InstrumentManagerBase : public AbstractInstrumentManager, public ResourceManager<InstrumentManager::instrument_id_t, I> {
        public:
            struct region_info_t {
                int    refCount;
                F*     file;
                void*  pArg;

                region_info_t() {
                    refCount = 0; file = NULL; pArg = NULL;
                }
            };

            typedef ResourceConsumer<I> InstrumentConsumer;

            InstrumentManagerBase() : AbstractInstrumentManager() { }
            virtual ~InstrumentManagerBase() { }

            virtual InstrumentEditor* LaunchInstrumentEditor(EngineChannel* pEngineChannel, instrument_id_t ID, void* pUserData = NULL) throw (InstrumentManagerException) OVERRIDE {
                 throw InstrumentManagerException(
                    "Instrument editing is not supported for this instrument format"
                );
            }

            virtual String GetInstrumentDataStructureName(instrument_id_t ID) OVERRIDE {
                throw InstrumentManagerException("Not implemented");
            }

            virtual String GetInstrumentDataStructureVersion(instrument_id_t ID) OVERRIDE {
                throw InstrumentManagerException("Not implemented");
            }

            /**
             * Give back an instrument. This should be used instead of
             * HandBack if there are some regions that are still in
             * use. (When an instrument is changed, the voices currently
             * playing are allowed to keep playing with the old instrument
             * until note off arrives. New notes will use the new instrument.)
             */
            void HandBackInstrument (
                I*                   pResource,
                InstrumentConsumer*  pConsumer,
                RTList<R*>*          pRegionsInUse
            ) {
                LockGuard lock(RegionInfoMutex);
                for (typename RTList<R*>::Iterator i = pRegionsInUse->first() ; i != pRegionsInUse->end() ; i++) {
                    RegionInfo[*i].refCount++;
                    SampleRefCount[(*i)->pSample]++;
                }
                this->HandBack(pResource, pConsumer, true);
            }

            /**
             * Give back a region that belongs to an instrument that
             * was previously handed back.
             */
            virtual void HandBackRegion(R* pRegion) {
                LockGuard lock(RegionInfoMutex);
                if (RegionInfo.find(pRegion) == RegionInfo.end()) {
                    std::cerr << "Handing back unknown region. This is a BUG!!!" << std::endl;
                }
                region_info_t& regInfo = RegionInfo[pRegion];
                int regionRefCount = --regInfo.refCount;
                int sampleRefCount = --SampleRefCount[pRegion->pSample];
                if (regionRefCount == 0) {
                    S* pSample = pRegion->pSample;

                    DeleteRegionIfNotUsed(pRegion, &regInfo);

                    if (sampleRefCount == 0) {
                        SampleRefCount.erase(pSample);
                        DeleteSampleIfNotUsed(pSample, &regInfo);
                    }
                    RegionInfo.erase(pRegion);
                }
            }

            virtual InstrumentManager::mode_t GetMode(const InstrumentManager::instrument_id_t& ID) OVERRIDE {
                return static_cast<InstrumentManager::mode_t>(ResourceManager<instrument_id_t, I>::AvailabilityMode(ID));
            }

            virtual void SetMode(const InstrumentManager::instrument_id_t& ID, InstrumentManager::mode_t Mode) OVERRIDE {
                dmsg(2,("InstrumentManagerBase: setting mode for %s (Index=%d) to %d\n",ID.FileName.c_str(),ID.Index,Mode));
                this->SetAvailabilityMode(ID, static_cast<typename ResourceManager<instrument_id_t, I>::mode_t>(Mode));
            }

    protected:
            // data stored as long as an instrument resource exists
            struct instr_entry_t {
                InstrumentManager::instrument_id_t ID;
                F*                                 pFile;
                uint                               MaxSamplesPerCycle; ///< if some engine requests an already allocated instrument with a higher value, we have to reallocate the instrument
            };


            /**
             * Used by the implementing instrument manager descendents in case
             * they don't have a reference to a sampler channel, which in turn
             * provides a reference to an audio device which would actually
             * define the maximum amount of sample points per audio render
             * cycle. So in those missing cases (e.g. when MIDI instrument maps
             * are created), this method will iterate through all already
             * existing audio devices and return the biggest max. samples per
             * cycle value of those audio devices.
             * 
             * In case no audio device is currently created, this method will
             * return a hard coded constant default value.
             * 
             * Background: We need to know the maximum number of sample points
             * which are going to be processed for each render cycle of the
             * audio output driver, to know how many initial sample points we
             * need to cache into RAM by the implementing instrument manager.
             */
            virtual uint DefaultMaxSamplesPerCycle() {
                uint samples = 0;
                std::map<uint, AudioOutputDevice*> devices = AudioOutputDeviceFactory::Devices();
                for (std::map<uint, AudioOutputDevice*>::iterator iter = devices.begin(); iter != devices.end(); ++iter) {
                    AudioOutputDevice* pDevice = iter->second;
                    if (pDevice->MaxSamplesPerCycle() > samples)
                        samples = pDevice->MaxSamplesPerCycle();
                }
                return (samples != 0) ? samples : RESOURCE_MANAGER_DEFAULT_MAX_SAMPLES_PER_CYCLE;
            }

            uint GetMaxSamplesPerCycle(InstrumentConsumer* pConsumer) {
                // try to resolve the audio device context
                AbstractEngineChannel* pEngineChannel = dynamic_cast<AbstractEngineChannel*>(pConsumer);
                AudioOutputDevice* pDevice = pEngineChannel ? pEngineChannel->GetAudioOutputDeviceSafe() : 0;
                return pDevice ? pDevice->MaxSamplesPerCycle() : DefaultMaxSamplesPerCycle();
            }

            Mutex RegionInfoMutex; ///< protects the RegionInfo and SampleRefCount maps from concurrent access by the instrument loader and disk threads
            std::map< R*, region_info_t> RegionInfo; ///< contains dimension regions that are still in use but belong to released instrument
            std::map< S*, int> SampleRefCount; ///< contains samples that are still in use but belong to a released instrument

            virtual void DeleteRegionIfNotUsed(R* pRegion, region_info_t* pRegInfo) = 0;
            virtual void DeleteSampleIfNotUsed(S* pSample, region_info_t* pRegInfo) = 0;

            void SetKeyBindings(uint8_t* bindingsArray, int low, int high, int undefined = -1) {
                if (low == undefined || high == undefined) return;
                if (low < 0 || low > 127 || high < 0 || high > 127 || low > high) {
                    std::cerr << "Invalid key range: " << low << " - " << high << std::endl;
                    return;
                }

                for (int i = low; i <= high; i++) bindingsArray[i] = 1;
            }

            /**
             *  Caches a certain size at the beginning of the given sample in RAM. If the
             *  sample is very short, the whole sample will be loaded into RAM and thus
             *  no disk streaming is needed for this sample. Caching an initial part of
             *  samples is needed to compensate disk reading latency.
             *
             *  @param pSample - points to the sample to be cached
             *  @param maxSamplesPerCycle - max samples per cycle
             */
            void CacheInitialSamples(S* pSample, uint maxSamplesPerCycle)  {
                if (!pSample) {
                    dmsg(4,("InstrumentManagerBase: Skipping sample (pSample == NULL)\n"));
                    return;
                }
                if (!pSample->GetTotalFrameCount()) return; // skip zero size samples

                if (pSample->GetTotalFrameCount() <= CONFIG_PRELOAD_SAMPLES) {
                    // Sample is too short for disk streaming, so we load the whole
                    // sample into RAM and place 'pAudioIO->FragmentSize << CONFIG_MAX_PITCH'
                    // number of '0' samples (silence samples) behind the official buffer
                    // border, to allow the interpolator do it's work even at the end of
                    // the sample.
                    const uint neededSilenceSamples = uint((maxSamplesPerCycle << CONFIG_MAX_PITCH) + 3);
                    const uint currentlyCachedSilenceSamples = uint(pSample->GetCache().NullExtensionSize / pSample->GetFrameSize());
                    if (currentlyCachedSilenceSamples < neededSilenceSamples) {
                        dmsg(3,("Caching whole sample (sample name: \"%s\", sample size: %ld)\n", pSample->GetName().c_str(), pSample->GetTotalFrameCount()));
                        typename S::buffer_t buf = pSample->LoadSampleDataWithNullSamplesExtension(neededSilenceSamples);
                        dmsg(4,("Cached %lu Bytes, %lu silence bytes.\n", buf.Size, buf.NullExtensionSize));
                    }
                }
                else { // we only cache CONFIG_PRELOAD_SAMPLES and stream the other sample points from disk
                    if (!pSample->GetCache().Size) pSample->LoadSampleData(CONFIG_PRELOAD_SAMPLES);
                }

                if (!pSample->GetCache().Size) std::cerr << "Unable to cache sample - maybe memory full!" << std::endl << std::flush;
            }

            // implementation of derived abstract methods from 'InstrumentManager'
            std::vector<instrument_id_t> Instruments() OVERRIDE {
                return ResourceManager<InstrumentManager::instrument_id_t, I>::Entries();
            }

            // implementation of derived abstract methods from 'ResourceManager'
            void OnBorrow(I* pResource, InstrumentConsumer* pConsumer, void*& pArg) OVERRIDE {
                instr_entry_t* pEntry = static_cast<instr_entry_t*>(pArg);
        
                uint maxSamplesPerCycle = GetMaxSamplesPerCycle(pConsumer);

                if (pEntry->MaxSamplesPerCycle < maxSamplesPerCycle) {
                    dmsg(1,("Completely reloading instrument due to insufficient precached samples ...\n"));
                    this->Update(pResource, pConsumer);
                }
            }
    };

} // namespace LinuxSampler

#endif // __LS_INSTRUMENTMANAGERBASE_H__
1	iliev	2012	/***************************************************************************
2			* *
3			* LinuxSampler - modular, streaming capable sampler *
4			* *
5			* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6	persson	2326	* Copyright (C) 2005 - 2008 Christian Schoenebeck *
7	schoenebeck	3054	* Copyright (C) 2009 Christian Schoenebeck and Grigor Iliev *
8			* Copyright (C) 2010-2016 Christian Schoenebeck and Andreas Persson *
9	iliev	2012	* *
10			* This library is free software; you can redistribute it and/or modify *
11			* it under the terms of the GNU General Public License as published by *
12			* the Free Software Foundation; either version 2 of the License, or *
13			* (at your option) any later version. *
14			* *
15			* This library is distributed in the hope that it will be useful, *
16			* but WITHOUT ANY WARRANTY; without even the implied warranty of *
17			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
18			* GNU General Public License for more details. *
19			* *
20			* You should have received a copy of the GNU General Public License *
21			* along with this library; if not, write to the Free Software *
22			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
23			* MA 02111-1307 USA *
24			***************************************************************************/
25
26			#ifndef __LS_INSTRUMENTMANAGERBASE_H__
27			#define __LS_INSTRUMENTMANAGERBASE_H__
28
29	schoenebeck	2611	#include "common/AbstractInstrumentManager.h"
30			#include "../drivers/audio/AudioOutputDeviceFactory.h"
31	iliev	2012	#include "AbstractEngine.h"
32			#include "AbstractEngineChannel.h"
33
34			// We need to know the maximum number of sample points which are going to
35			// be processed for each render cycle of the audio output driver, to know
36			// how much initial sample points we need to cache into RAM. If the given
37			// sampler channel does not have an audio output device assigned yet
38			// though, we simply use this default value.
39	persson	2326	#define RESOURCE_MANAGER_DEFAULT_MAX_SAMPLES_PER_CYCLE 128
40	iliev	2012
41			namespace LinuxSampler {
42
43			template <class F /* Instrument File /, class I / Instrument /, class R / Regions /, class S /Sample */>
44	schoenebeck	2611	class InstrumentManagerBase : public AbstractInstrumentManager, public ResourceManager<InstrumentManager::instrument_id_t, I> {
45	iliev	2012	public:
46			struct region_info_t {
47			int refCount;
48			F* file;
49			void* pArg;
50
51			region_info_t() {
52			refCount = 0; file = NULL; pArg = NULL;
53			}
54			};
55
56			typedef ResourceConsumer<I> InstrumentConsumer;
57
58	schoenebeck	2611	InstrumentManagerBase() : AbstractInstrumentManager() { }
59	iliev	2012	virtual ~InstrumentManagerBase() { }
60
61	schoenebeck	2687	virtual InstrumentEditor* LaunchInstrumentEditor(EngineChannel* pEngineChannel, instrument_id_t ID, void* pUserData = NULL) throw (InstrumentManagerException) OVERRIDE {
62	iliev	2012	throw InstrumentManagerException(
63			"Instrument editing is not supported for this instrument format"
64			);
65			}
66
67	schoenebeck	2434	virtual String GetInstrumentDataStructureName(instrument_id_t ID) OVERRIDE {
68	iliev	2012	throw InstrumentManagerException("Not implemented");
69			}
70
71	schoenebeck	2434	virtual String GetInstrumentDataStructureVersion(instrument_id_t ID) OVERRIDE {
72	iliev	2012	throw InstrumentManagerException("Not implemented");
73			}
74
75			/**
76			* Give back an instrument. This should be used instead of
77			* HandBack if there are some regions that are still in
78			* use. (When an instrument is changed, the voices currently
79			* playing are allowed to keep playing with the old instrument
80			* until note off arrives. New notes will use the new instrument.)
81			*/
82			void HandBackInstrument (
83			I* pResource,
84			InstrumentConsumer* pConsumer,
85			RTList<R> pRegionsInUse
86			) {
87	persson	2427	LockGuard lock(RegionInfoMutex);
88	iliev	2012	for (typename RTList<R*>::Iterator i = pRegionsInUse->first() ; i != pRegionsInUse->end() ; i++) {
89			RegionInfo[*i].refCount++;
90			SampleRefCount[(*i)->pSample]++;
91			}
92	persson	2335	this->HandBack(pResource, pConsumer, true);
93	iliev	2012	}
94
95			/**
96			* Give back a region that belongs to an instrument that
97			* was previously handed back.
98			*/
99	persson	2460	virtual void HandBackRegion(R* pRegion) {
100	persson	2427	LockGuard lock(RegionInfoMutex);
101	iliev	2012	if (RegionInfo.find(pRegion) == RegionInfo.end()) {
102			std::cerr << "Handing back unknown region. This is a BUG!!!" << std::endl;
103			}
104			region_info_t& regInfo = RegionInfo[pRegion];
105			int regionRefCount = --regInfo.refCount;
106			int sampleRefCount = --SampleRefCount[pRegion->pSample];
107			if (regionRefCount == 0) {
108	persson	2058	S* pSample = pRegion->pSample;
109
110	iliev	2012	DeleteRegionIfNotUsed(pRegion, &regInfo);
111
112			if (sampleRefCount == 0) {
113	persson	2058	SampleRefCount.erase(pSample);
114			DeleteSampleIfNotUsed(pSample, &regInfo);
115	iliev	2012	}
116	persson	2058	RegionInfo.erase(pRegion);
117	iliev	2012	}
118			}
119
120	schoenebeck	2434	virtual InstrumentManager::mode_t GetMode(const InstrumentManager::instrument_id_t& ID) OVERRIDE {
121	iliev	2012	return static_cast<InstrumentManager::mode_t>(ResourceManager<instrument_id_t, I>::AvailabilityMode(ID));
122			}
123
124	schoenebeck	2434	virtual void SetMode(const InstrumentManager::instrument_id_t& ID, InstrumentManager::mode_t Mode) OVERRIDE {
125	iliev	2012	dmsg(2,("InstrumentManagerBase: setting mode for %s (Index=%d) to %d\n",ID.FileName.c_str(),ID.Index,Mode));
126	persson	2335	this->SetAvailabilityMode(ID, static_cast<typename ResourceManager<instrument_id_t, I>::mode_t>(Mode));
127	iliev	2012	}
128	persson	2326
129			protected:
130			// data stored as long as an instrument resource exists
131			struct instr_entry_t {
132			InstrumentManager::instrument_id_t ID;
133			F* pFile;
134			uint MaxSamplesPerCycle; ///< if some engine requests an already allocated instrument with a higher value, we have to reallocate the instrument
135			};
136
137
138	schoenebeck	2275	/**
139			* Used by the implementing instrument manager descendents in case
140			* they don't have a reference to a sampler channel, which in turn
141			* provides a reference to an audio device which would actually
142			* define the maximum amount of sample points per audio render
143			* cycle. So in those missing cases (e.g. when MIDI instrument maps
144			* are created), this method will iterate through all already
145			* existing audio devices and return the biggest max. samples per
146			* cycle value of those audio devices.
147			*
148			* In case no audio device is currently created, this method will
149			* return a hard coded constant default value.
150			*
151			* Background: We need to know the maximum number of sample points
152			* which are going to be processed for each render cycle of the
153			* audio output driver, to know how many initial sample points we
154			* need to cache into RAM by the implementing instrument manager.
155			*/
156			virtual uint DefaultMaxSamplesPerCycle() {
157			uint samples = 0;
158			std::map<uint, AudioOutputDevice*> devices = AudioOutputDeviceFactory::Devices();
159			for (std::map<uint, AudioOutputDevice*>::iterator iter = devices.begin(); iter != devices.end(); ++iter) {
160			AudioOutputDevice* pDevice = iter->second;
161			if (pDevice->MaxSamplesPerCycle() > samples)
162			samples = pDevice->MaxSamplesPerCycle();
163			}
164	persson	2326	return (samples != 0) ? samples : RESOURCE_MANAGER_DEFAULT_MAX_SAMPLES_PER_CYCLE;
165	schoenebeck	2275	}
166	iliev	2012
167	persson	2326	uint GetMaxSamplesPerCycle(InstrumentConsumer* pConsumer) {
168			// try to resolve the audio device context
169			AbstractEngineChannel* pEngineChannel = dynamic_cast<AbstractEngineChannel*>(pConsumer);
170			AudioOutputDevice* pDevice = pEngineChannel ? pEngineChannel->GetAudioOutputDeviceSafe() : 0;
171			return pDevice ? pDevice->MaxSamplesPerCycle() : DefaultMaxSamplesPerCycle();
172			}
173
174	iliev	2012	Mutex RegionInfoMutex; ///< protects the RegionInfo and SampleRefCount maps from concurrent access by the instrument loader and disk threads
175			std::map< R*, region_info_t> RegionInfo; ///< contains dimension regions that are still in use but belong to released instrument
176			std::map< S*, int> SampleRefCount; ///< contains samples that are still in use but belong to a released instrument
177
178			virtual void DeleteRegionIfNotUsed(R* pRegion, region_info_t* pRegInfo) = 0;
179			virtual void DeleteSampleIfNotUsed(S* pSample, region_info_t* pRegInfo) = 0;
180
181	iliev	2027	void SetKeyBindings(uint8_t* bindingsArray, int low, int high, int undefined = -1) {
182			if (low == undefined \|\| high == undefined) return;
183			if (low < 0 \|\| low > 127 \|\| high < 0 \|\| high > 127 \|\| low > high) {
184			std::cerr << "Invalid key range: " << low << " - " << high << std::endl;
185			return;
186			}
187
188			for (int i = low; i <= high; i++) bindingsArray[i] = 1;
189			}
190
191	persson	2326	/**
192			* Caches a certain size at the beginning of the given sample in RAM. If the
193			* sample is very short, the whole sample will be loaded into RAM and thus
194			* no disk streaming is needed for this sample. Caching an initial part of
195			* samples is needed to compensate disk reading latency.
196			*
197			* @param pSample - points to the sample to be cached
198			* @param maxSamplesPerCycle - max samples per cycle
199			*/
200			void CacheInitialSamples(S* pSample, uint maxSamplesPerCycle) {
201	iliev	2012	if (!pSample) {
202			dmsg(4,("InstrumentManagerBase: Skipping sample (pSample == NULL)\n"));
203			return;
204			}
205			if (!pSample->GetTotalFrameCount()) return; // skip zero size samples
206
207			if (pSample->GetTotalFrameCount() <= CONFIG_PRELOAD_SAMPLES) {
208			// Sample is too short for disk streaming, so we load the whole
209			// sample into RAM and place 'pAudioIO->FragmentSize << CONFIG_MAX_PITCH'
210			// number of '0' samples (silence samples) behind the official buffer
211			// border, to allow the interpolator do it's work even at the end of
212			// the sample.
213	schoenebeck	3054	const uint neededSilenceSamples = uint((maxSamplesPerCycle << CONFIG_MAX_PITCH) + 3);
214			const uint currentlyCachedSilenceSamples = uint(pSample->GetCache().NullExtensionSize / pSample->GetFrameSize());
215	iliev	2012	if (currentlyCachedSilenceSamples < neededSilenceSamples) {
216	persson	2837	dmsg(3,("Caching whole sample (sample name: \"%s\", sample size: %ld)\n", pSample->GetName().c_str(), pSample->GetTotalFrameCount()));
217	iliev	2012	typename S::buffer_t buf = pSample->LoadSampleDataWithNullSamplesExtension(neededSilenceSamples);
218	persson	2837	dmsg(4,("Cached %lu Bytes, %lu silence bytes.\n", buf.Size, buf.NullExtensionSize));
219	iliev	2012	}
220			}
221			else { // we only cache CONFIG_PRELOAD_SAMPLES and stream the other sample points from disk
222			if (!pSample->GetCache().Size) pSample->LoadSampleData(CONFIG_PRELOAD_SAMPLES);
223			}
224
225			if (!pSample->GetCache().Size) std::cerr << "Unable to cache sample - maybe memory full!" << std::endl << std::flush;
226			}
227
228	persson	2326	// implementation of derived abstract methods from 'InstrumentManager'
229	schoenebeck	3054	std::vector<instrument_id_t> Instruments() OVERRIDE {
230	persson	2326	return ResourceManager<InstrumentManager::instrument_id_t, I>::Entries();
231	iliev	2012	}
232	persson	2326
233			// implementation of derived abstract methods from 'ResourceManager'
234	schoenebeck	3054	void OnBorrow(I* pResource, InstrumentConsumer* pConsumer, void*& pArg) OVERRIDE {
235	persson	2326	instr_entry_t* pEntry = static_cast<instr_entry_t*>(pArg);
236
237			uint maxSamplesPerCycle = GetMaxSamplesPerCycle(pConsumer);
238
239			if (pEntry->MaxSamplesPerCycle < maxSamplesPerCycle) {
240			dmsg(1,("Completely reloading instrument due to insufficient precached samples ...\n"));
241	persson	2335	this->Update(pResource, pConsumer);
242	persson	2326	}
243			}
244	iliev	2012	};
245
246			} // namespace LinuxSampler
247
248	persson	2045	#endif // __LS_INSTRUMENTMANAGERBASE_H__