engines/sf2/InstrumentResourceManager.cpp

/***************************************************************************
 *                                                                         *
 *   LinuxSampler - modular, streaming capable sampler                     *
 *                                                                         *
 *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
 *   Copyright (C) 2005 - 2009 Christian Schoenebeck                       *
 *   Copyright (C) 2009 Grigor Iliev                                       *
 *                                                                         *
 *   This program 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 program 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 program; if not, write to the Free Software           *
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,                 *
 *   MA  02111-1307  USA                                                   *
 ***************************************************************************/

#include <sstream>
#include <sf2/SF.h>

#include "InstrumentResourceManager.h"
#include "EngineChannel.h"
#include "Engine.h"

#include "../../common/global_private.h"
#include "../../common/Path.h"
#include "../../plugins/InstrumentEditorFactory.h"


namespace LinuxSampler { namespace sf2 {

    // data stored as long as an instrument resource exists
    struct instr_entry_t {
        InstrumentManager::instrument_id_t ID;
        ::sf2::File*                       pSf2;
        uint                               MaxSamplesPerCycle; ///< if some engine requests an already allocated instrument with a higher value, we have to reallocate the instrument
    };

    // some data needed for the libgig callback function
    struct progress_callback_arg_t {
        InstrumentResourceManager*          pManager;
        InstrumentManager::instrument_id_t* pInstrumentKey;
    };

    std::vector<InstrumentResourceManager::instrument_id_t> InstrumentResourceManager::Instruments() {
        return Entries();
    }

    String InstrumentResourceManager::GetInstrumentName(instrument_id_t ID) {
        Lock();
        ::sf2::InstrumentBase* pInstrument = Resource(ID, false);
        String res = (pInstrument) ? pInstrument->GetName() : "";
        Unlock();
        return res;
    }

    std::vector<InstrumentResourceManager::instrument_id_t> InstrumentResourceManager::GetInstrumentFileContent(String File) throw (InstrumentManagerException) {
        ::RIFF::File* riff = NULL;
        ::sf2::File*  sf2  = NULL;
        try {
            std::vector<instrument_id_t> result;
            riff = new ::RIFF::File(File);
            sf2  = new ::sf2::File(riff);
            for (int i = 0; i < GetSfInstrumentCount(sf2); i++) {
                instrument_id_t id;
                id.FileName = File;
                id.Index    = i;
                result.push_back(id);
            }
            if (sf2)  delete sf2;
            if (riff) delete riff;
            return result;
        } catch (::RIFF::Exception e) {
            if (sf2)  delete sf2;
            if (riff) delete riff;
            throw InstrumentManagerException(e.Message);
        } catch (...) {
            if (sf2)  delete sf2;
            if (riff) delete riff;
            throw InstrumentManagerException("Unknown exception while trying to parse '" + File + "'");
        }
    }

    InstrumentResourceManager::instrument_info_t InstrumentResourceManager::GetInstrumentInfo(instrument_id_t ID) throw (InstrumentManagerException) {
        Lock();
        ::sf2::InstrumentBase* pInstrument = Resource(ID, false);
        bool loaded = (pInstrument != NULL);
        if (!loaded) Unlock();

        ::RIFF::File* riff = NULL;
        ::sf2::File*  sf2  = NULL;
        try {
            if(!loaded) {
                riff = new ::RIFF::File(ID.FileName);
                sf2 = new ::sf2::File(riff);
                pInstrument = GetSfInstrument(sf2, ID.Index);
            }

            instrument_info_t info;
            for (int i = 0; i < 128; i++) { info.KeyBindings[i] = info.KeySwitchBindings[i] = 0; }

            ::sf2::File* pFile = pInstrument->GetFile();

            info.FormatVersion = ToString(pFile->pInfo->pVer->Major);
            info.Product = pFile->pInfo->Product;
            info.Artists = pFile->pInfo->Engineers;

            info.InstrumentName = pInstrument->Name;

            for (int i = 0; i < pInstrument->GetRegionCount(); i++) {
                int low = pInstrument->GetRegion(i)->loKey;
                int high = pInstrument->GetRegion(i)->hiKey;
                if (low < 0 || low > 127 || high < 0 || high > 127 || low > high) {
                    std::cerr << "Invalid key range: " << low << " - " << high << std::endl;
                } else {
                    for (int i = low; i <= high; i++) info.KeyBindings[i] = 1;
                }
            }

            if (loaded) Unlock();

            if (sf2)  delete sf2;
            if (riff) delete riff;
            return info;
        } catch (::sf2::Exception e) {
            if (loaded) Unlock();
            if (sf2)  delete sf2;
            if (riff) delete riff;
            throw InstrumentManagerException(e.Message);
        } catch (...) {
            if (loaded) Unlock();
            if (sf2)  delete sf2;
            if (riff) delete riff;
            throw InstrumentManagerException("Unknown exception while trying to parse '" + ID.FileName + "'");
        }
    }

    ::sf2::InstrumentBase* InstrumentResourceManager::Create(instrument_id_t Key, InstrumentConsumer* pConsumer, void*& pArg) {
        // get sfz file from internal sfz file manager
        ::sf2::File* pSf2 = Sf2s.Borrow(Key.FileName, (Sf2Consumer*) Key.Index); // conversion kinda hackish :/

        dmsg(1,("Loading sf2 instrument ('%s',%d)...",Key.FileName.c_str(),Key.Index));
        ::sf2::InstrumentBase* pInstrument = GetSfInstrument(pSf2, Key.Index);
        dmsg(1,("OK\n"));

        // cache initial samples points (for actually needed samples)
        dmsg(1,("Caching initial samples..."));
        float regTotal = 0, regCurrent = 0;
        for(int i = 0 ; i < pInstrument->GetRegionCount(); i++) {
            ::sf2::Instrument* sf2Instr = pInstrument->GetRegion(i)->pInstrument;
            if(sf2Instr) regTotal += sf2Instr->GetRegionCount();
            else regTotal++; // if sf2Instr is null, than pInstrument is not a preset
        }
        for(int i = 0 ; i < pInstrument->GetRegionCount(); i++) {
            ::sf2::Instrument* sf2Instr = pInstrument->GetRegion(i)->pInstrument;
            ::sf2::Sample* sf2Sample = pInstrument->GetRegion(i)->GetSample();
            if(sf2Instr != NULL) {
                // pInstrument is ::sf2::Preset
                for(int j = 0; j < sf2Instr->GetRegionCount(); j++) {
                    const float localProgress = regCurrent++ / regTotal;
                    DispatchResourceProgressEvent(Key, localProgress);
                    CacheInitialSamples(sf2Instr->GetRegion(j)->GetSample(), dynamic_cast<AbstractEngineChannel*>(pConsumer));
                }
            } else if(sf2Sample != NULL) {
                // pInstrument is ::sf2::Instrument
                CacheInitialSamples(sf2Sample, dynamic_cast<AbstractEngineChannel*>(pConsumer));
            }
        }
        dmsg(1,("OK\n"));
        DispatchResourceProgressEvent(Key, 1.0f); // done; notify all consumers about progress 100%

        // we need the following for destruction later
        instr_entry_t* pEntry = new instr_entry_t;
        pEntry->ID.FileName   = Key.FileName;
        pEntry->ID.Index      = Key.Index;
        pEntry->pSf2          = pSf2;

        EngineChannel* pEngineChannel = dynamic_cast<EngineChannel*>(pConsumer);
        // and we save this to check if we need to reallocate for a engine with higher value of 'MaxSamplesPerSecond'
        pEntry->MaxSamplesPerCycle =
            (!pEngineChannel) ? 0 /* don't care for instrument editors */ :
                (pEngineChannel->GetEngine()) ?
                    dynamic_cast<Engine*>(pEngineChannel->GetEngine())->pAudioOutputDevice->MaxSamplesPerCycle()
                    : GIG_RESOURCE_MANAGER_DEFAULT_MAX_SAMPLES_PER_CYCLE;
        pArg = pEntry;

        return pInstrument;
    }

    void InstrumentResourceManager::Destroy( ::sf2::InstrumentBase* pResource, void* pArg) {
        instr_entry_t* pEntry = (instr_entry_t*) pArg;
        // we don't need the .sf2 file here anymore
        Sf2s.HandBack(pEntry->pSf2, (Sf2Consumer*) pEntry->ID.Index); // conversion kinda hackish :/
        delete pEntry;
    }

    void InstrumentResourceManager::OnBorrow(::sf2::InstrumentBase* pResource, InstrumentConsumer* pConsumer, void*& pArg) {
        instr_entry_t* pEntry = (instr_entry_t*) pArg;
        EngineChannel* pEngineChannel = dynamic_cast<EngineChannel*>(pConsumer);
        uint maxSamplesPerCycle =
            (pEngineChannel && pEngineChannel->GetEngine()) ? dynamic_cast<Engine*>(pEngineChannel->GetEngine())->pAudioOutputDevice->MaxSamplesPerCycle()
                                          : GIG_RESOURCE_MANAGER_DEFAULT_MAX_SAMPLES_PER_CYCLE;
        if (pEntry->MaxSamplesPerCycle < maxSamplesPerCycle) {
            Update(pResource, pConsumer);
        }
    }

    void InstrumentResourceManager::DeleteRegionIfNotUsed(::sf2::Region* pRegion, region_info_t* pRegInfo) {
        // TODO: we could delete Region and Instrument here if they have become unused
    }

    void InstrumentResourceManager::DeleteSampleIfNotUsed(::sf2::Sample* pSample, region_info_t* pRegInfo) {
        ::sf2::File*  sf2 = pRegInfo->file;
        ::RIFF::File* riff = static_cast< ::RIFF::File*>(pRegInfo->pArg);
        if (sf2) {
            sf2->DeleteSample(pSample);
            if (!sf2->HasSamples()) {
                dmsg(2,("No more samples in use - freeing sf2\n"));
                delete sf2;
                delete riff;
            }
        }
    }


    // internal sfz file manager

    ::sf2::File* InstrumentResourceManager::Sf2ResourceManager::Create(String Key, Sf2Consumer* pConsumer, void*& pArg) {
        dmsg(1,("Loading sf2 file \'%s\'...", Key.c_str()));
        ::RIFF::File* pRIFF = new ::RIFF::File(Key);
        ::sf2::File* pSf2   = new ::sf2::File(pRIFF);
        pArg                = pRIFF;
        dmsg(1,("OK\n"));
        return pSf2;
    }

    void InstrumentResourceManager::Sf2ResourceManager::Destroy(::sf2::File* pResource, void* pArg) {
        dmsg(1,("Freeing sf2 file from memory..."));

      /*  // Delete as much as possible of the sfz file. Some of the
        // regions and samples may still be in use - these
        // will be deleted later by the HandBackRegion function.
        bool deleteInstrument = true;
        ::sf2::Instrument* pInstr = pResource->GetInstrument();

        for (int i = pInstr->regions.size() - 1; i >= 0 ; i--) {
            ::sfz::Region* pRegion = pInstr->regions[i];
            std::map< ::sfz::Region*, region_info_t>::iterator iter = parent->RegionInfo.find(pRegion);
            if (iter != parent->RegionInfo.end()) {
                region_info_t& regInfo = (*iter).second;
                regInfo.file = pResource;
                deleteInstrument = false;
            } else {
                SampleFile* sf = pRegion->GetSample(false);
                if (sf != NULL) pInstr->GetSampleManager()->RemoveSampleConsumer(sf, pRegion);
                if (sf == NULL || !pInstr->GetSampleManager()->HasSampleConsumers(sf)) pInstr->DestroyRegion(pRegion);
            }
        }

        if(deleteInstrument) delete pResource;
        else dmsg(2,("keeping some samples that are in use..."));*/

        dmsg(1,("OK\n"));
    }

    int InstrumentResourceManager::GetSfInstrumentCount(::sf2::File* pFile) {
        return pFile->GetInstrumentCount() + pFile->GetPresetCount();
    }

    ::sf2::InstrumentBase* InstrumentResourceManager::GetSfInstrument(::sf2::File* pFile, int idx) {
        if (idx >= pFile->GetInstrumentCount() + pFile->GetPresetCount()) {
            throw InstrumentManagerException("There is no instrument with index " + ToString(idx));
        }

        if (idx < pFile->GetInstrumentCount()) {
            return pFile->GetInstrument(idx);
        }
        
        int presetIdx = idx - pFile->GetInstrumentCount();
        return pFile->GetPreset(presetIdx);
    }

}} // namespace LinuxSampler::sfz
1	iliev	2012	/***************************************************************************
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			* Copyright (C) 2009 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			#include <sstream>
26			#include <sf2/SF.h>
27
28			#include "InstrumentResourceManager.h"
29			#include "EngineChannel.h"
30			#include "Engine.h"
31
32			#include "../../common/global_private.h"
33			#include "../../common/Path.h"
34			#include "../../plugins/InstrumentEditorFactory.h"
35
36
37			namespace LinuxSampler { namespace sf2 {
38
39			// data stored as long as an instrument resource exists
40			struct instr_entry_t {
41			InstrumentManager::instrument_id_t ID;
42			::sf2::File* pSf2;
43			uint MaxSamplesPerCycle; ///< if some engine requests an already allocated instrument with a higher value, we have to reallocate the instrument
44			};
45
46			// some data needed for the libgig callback function
47			struct progress_callback_arg_t {
48			InstrumentResourceManager* pManager;
49			InstrumentManager::instrument_id_t* pInstrumentKey;
50			};
51
52			std::vector<InstrumentResourceManager::instrument_id_t> InstrumentResourceManager::Instruments() {
53			return Entries();
54			}
55
56			String InstrumentResourceManager::GetInstrumentName(instrument_id_t ID) {
57			Lock();
58			::sf2::InstrumentBase* pInstrument = Resource(ID, false);
59			String res = (pInstrument) ? pInstrument->GetName() : "";
60			Unlock();
61			return res;
62			}
63
64			std::vector<InstrumentResourceManager::instrument_id_t> InstrumentResourceManager::GetInstrumentFileContent(String File) throw (InstrumentManagerException) {
65			::RIFF::File* riff = NULL;
66			::sf2::File* sf2 = NULL;
67			try {
68			std::vector<instrument_id_t> result;
69			riff = new ::RIFF::File(File);
70			sf2 = new ::sf2::File(riff);
71			for (int i = 0; i < GetSfInstrumentCount(sf2); i++) {
72			instrument_id_t id;
73			id.FileName = File;
74			id.Index = i;
75			result.push_back(id);
76			}
77			if (sf2) delete sf2;
78			if (riff) delete riff;
79			return result;
80			} catch (::RIFF::Exception e) {
81			if (sf2) delete sf2;
82			if (riff) delete riff;
83			throw InstrumentManagerException(e.Message);
84			} catch (...) {
85			if (sf2) delete sf2;
86			if (riff) delete riff;
87			throw InstrumentManagerException("Unknown exception while trying to parse '" + File + "'");
88			}
89			}
90
91			InstrumentResourceManager::instrument_info_t InstrumentResourceManager::GetInstrumentInfo(instrument_id_t ID) throw (InstrumentManagerException) {
92			Lock();
93			::sf2::InstrumentBase* pInstrument = Resource(ID, false);
94			bool loaded = (pInstrument != NULL);
95			if (!loaded) Unlock();
96
97			::RIFF::File* riff = NULL;
98			::sf2::File* sf2 = NULL;
99			try {
100			if(!loaded) {
101			riff = new ::RIFF::File(ID.FileName);
102			sf2 = new ::sf2::File(riff);
103			pInstrument = GetSfInstrument(sf2, ID.Index);
104			}
105
106			instrument_info_t info;
107			for (int i = 0; i < 128; i++) { info.KeyBindings[i] = info.KeySwitchBindings[i] = 0; }
108
109			::sf2::File* pFile = pInstrument->GetFile();
110
111			info.FormatVersion = ToString(pFile->pInfo->pVer->Major);
112			info.Product = pFile->pInfo->Product;
113			info.Artists = pFile->pInfo->Engineers;
114
115			info.InstrumentName = pInstrument->Name;
116
117			for (int i = 0; i < pInstrument->GetRegionCount(); i++) {
118			int low = pInstrument->GetRegion(i)->loKey;
119			int high = pInstrument->GetRegion(i)->hiKey;
120			if (low < 0 \|\| low > 127 \|\| high < 0 \|\| high > 127 \|\| low > high) {
121			std::cerr << "Invalid key range: " << low << " - " << high << std::endl;
122			} else {
123			for (int i = low; i <= high; i++) info.KeyBindings[i] = 1;
124			}
125			}
126
127			if (loaded) Unlock();
128
129			if (sf2) delete sf2;
130			if (riff) delete riff;
131			return info;
132			} catch (::sf2::Exception e) {
133			if (loaded) Unlock();
134			if (sf2) delete sf2;
135			if (riff) delete riff;
136			throw InstrumentManagerException(e.Message);
137			} catch (...) {
138			if (loaded) Unlock();
139			if (sf2) delete sf2;
140			if (riff) delete riff;
141			throw InstrumentManagerException("Unknown exception while trying to parse '" + ID.FileName + "'");
142			}
143			}
144
145			::sf2::InstrumentBase* InstrumentResourceManager::Create(instrument_id_t Key, InstrumentConsumer* pConsumer, void*& pArg) {
146			// get sfz file from internal sfz file manager
147			::sf2::File* pSf2 = Sf2s.Borrow(Key.FileName, (Sf2Consumer*) Key.Index); // conversion kinda hackish :/
148
149			dmsg(1,("Loading sf2 instrument ('%s',%d)...",Key.FileName.c_str(),Key.Index));
150			::sf2::InstrumentBase* pInstrument = GetSfInstrument(pSf2, Key.Index);
151			dmsg(1,("OK\n"));
152
153			// cache initial samples points (for actually needed samples)
154			dmsg(1,("Caching initial samples..."));
155			float regTotal = 0, regCurrent = 0;
156			for(int i = 0 ; i < pInstrument->GetRegionCount(); i++) {
157			::sf2::Instrument* sf2Instr = pInstrument->GetRegion(i)->pInstrument;
158			if(sf2Instr) regTotal += sf2Instr->GetRegionCount();
159			else regTotal++; // if sf2Instr is null, than pInstrument is not a preset
160			}
161			for(int i = 0 ; i < pInstrument->GetRegionCount(); i++) {
162			::sf2::Instrument* sf2Instr = pInstrument->GetRegion(i)->pInstrument;
163			::sf2::Sample* sf2Sample = pInstrument->GetRegion(i)->GetSample();
164			if(sf2Instr != NULL) {
165			// pInstrument is ::sf2::Preset
166			for(int j = 0; j < sf2Instr->GetRegionCount(); j++) {
167			const float localProgress = regCurrent++ / regTotal;
168			DispatchResourceProgressEvent(Key, localProgress);
169			CacheInitialSamples(sf2Instr->GetRegion(j)->GetSample(), dynamic_cast<AbstractEngineChannel*>(pConsumer));
170			}
171			} else if(sf2Sample != NULL) {
172			// pInstrument is ::sf2::Instrument
173			CacheInitialSamples(sf2Sample, dynamic_cast<AbstractEngineChannel*>(pConsumer));
174			}
175			}
176			dmsg(1,("OK\n"));
177			DispatchResourceProgressEvent(Key, 1.0f); // done; notify all consumers about progress 100%
178
179			// we need the following for destruction later
180			instr_entry_t* pEntry = new instr_entry_t;
181			pEntry->ID.FileName = Key.FileName;
182			pEntry->ID.Index = Key.Index;
183			pEntry->pSf2 = pSf2;
184
185			EngineChannel* pEngineChannel = dynamic_cast<EngineChannel*>(pConsumer);
186			// and we save this to check if we need to reallocate for a engine with higher value of 'MaxSamplesPerSecond'
187			pEntry->MaxSamplesPerCycle =
188			(!pEngineChannel) ? 0 /* don't care for instrument editors */ :
189			(pEngineChannel->GetEngine()) ?
190			dynamic_cast<Engine*>(pEngineChannel->GetEngine())->pAudioOutputDevice->MaxSamplesPerCycle()
191			: GIG_RESOURCE_MANAGER_DEFAULT_MAX_SAMPLES_PER_CYCLE;
192			pArg = pEntry;
193
194			return pInstrument;
195			}
196
197			void InstrumentResourceManager::Destroy( ::sf2::InstrumentBase* pResource, void* pArg) {
198			instr_entry_t* pEntry = (instr_entry_t*) pArg;
199			// we don't need the .sf2 file here anymore
200			Sf2s.HandBack(pEntry->pSf2, (Sf2Consumer*) pEntry->ID.Index); // conversion kinda hackish :/
201			delete pEntry;
202			}
203
204			void InstrumentResourceManager::OnBorrow(::sf2::InstrumentBase* pResource, InstrumentConsumer* pConsumer, void*& pArg) {
205			instr_entry_t* pEntry = (instr_entry_t*) pArg;
206			EngineChannel* pEngineChannel = dynamic_cast<EngineChannel*>(pConsumer);
207			uint maxSamplesPerCycle =
208			(pEngineChannel && pEngineChannel->GetEngine()) ? dynamic_cast<Engine*>(pEngineChannel->GetEngine())->pAudioOutputDevice->MaxSamplesPerCycle()
209			: GIG_RESOURCE_MANAGER_DEFAULT_MAX_SAMPLES_PER_CYCLE;
210			if (pEntry->MaxSamplesPerCycle < maxSamplesPerCycle) {
211			Update(pResource, pConsumer);
212			}
213			}
214
215			void InstrumentResourceManager::DeleteRegionIfNotUsed(::sf2::Region* pRegion, region_info_t* pRegInfo) {
216			// TODO: we could delete Region and Instrument here if they have become unused
217			}
218
219			void InstrumentResourceManager::DeleteSampleIfNotUsed(::sf2::Sample* pSample, region_info_t* pRegInfo) {
220			::sf2::File* sf2 = pRegInfo->file;
221			::RIFF::File* riff = static_cast< ::RIFF::File*>(pRegInfo->pArg);
222			if (sf2) {
223			sf2->DeleteSample(pSample);
224			if (!sf2->HasSamples()) {
225			dmsg(2,("No more samples in use - freeing sf2\n"));
226			delete sf2;
227			delete riff;
228			}
229			}
230			}
231
232
233
234			// internal sfz file manager
235
236			::sf2::File* InstrumentResourceManager::Sf2ResourceManager::Create(String Key, Sf2Consumer* pConsumer, void*& pArg) {
237			dmsg(1,("Loading sf2 file \'%s\'...", Key.c_str()));
238			::RIFF::File* pRIFF = new ::RIFF::File(Key);
239			::sf2::File* pSf2 = new ::sf2::File(pRIFF);
240			pArg = pRIFF;
241			dmsg(1,("OK\n"));
242			return pSf2;
243			}
244
245			void InstrumentResourceManager::Sf2ResourceManager::Destroy(::sf2::File* pResource, void* pArg) {
246			dmsg(1,("Freeing sf2 file from memory..."));
247
248			/* // Delete as much as possible of the sfz file. Some of the
249			// regions and samples may still be in use - these
250			// will be deleted later by the HandBackRegion function.
251			bool deleteInstrument = true;
252			::sf2::Instrument* pInstr = pResource->GetInstrument();
253
254			for (int i = pInstr->regions.size() - 1; i >= 0 ; i--) {
255			::sfz::Region* pRegion = pInstr->regions[i];
256			std::map< ::sfz::Region*, region_info_t>::iterator iter = parent->RegionInfo.find(pRegion);
257			if (iter != parent->RegionInfo.end()) {
258			region_info_t& regInfo = (*iter).second;
259			regInfo.file = pResource;
260			deleteInstrument = false;
261			} else {
262			SampleFile* sf = pRegion->GetSample(false);
263			if (sf != NULL) pInstr->GetSampleManager()->RemoveSampleConsumer(sf, pRegion);
264			if (sf == NULL \|\| !pInstr->GetSampleManager()->HasSampleConsumers(sf)) pInstr->DestroyRegion(pRegion);
265			}
266			}
267
268			if(deleteInstrument) delete pResource;
269			else dmsg(2,("keeping some samples that are in use..."));*/
270
271			dmsg(1,("OK\n"));
272			}
273
274			int InstrumentResourceManager::GetSfInstrumentCount(::sf2::File* pFile) {
275			return pFile->GetInstrumentCount() + pFile->GetPresetCount();
276			}
277
278			::sf2::InstrumentBase* InstrumentResourceManager::GetSfInstrument(::sf2::File* pFile, int idx) {
279			if (idx >= pFile->GetInstrumentCount() + pFile->GetPresetCount()) {
280			throw InstrumentManagerException("There is no instrument with index " + ToString(idx));
281			}
282
283			if (idx < pFile->GetInstrumentCount()) {
284			return pFile->GetInstrument(idx);
285			}
286
287			int presetIdx = idx - pFile->GetInstrumentCount();
288			return pFile->GetPreset(presetIdx);
289			}
290
291			}} // namespace LinuxSampler::sfz