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 "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 sf2 file. Some of the
        // regions and samples may still be in use - these
        // will be deleted later by the HandBackRegion function.
        bool deleteFile = true;

        for (int i = pResource->GetInstrumentCount() - 1; i >= 0; i--) {
            ::sf2::Instrument* pInstr = pResource->GetInstrument(i);
            bool deleteInstrument = true;

            for (int j = pInstr->GetRegionCount() - 1; j >= 0 ; j--) {
                ::sf2::Region* pRegion = pInstr->GetRegion(j);
                std::map< ::sf2::Region*, region_info_t>::iterator iter = parent->RegionInfo.find(pRegion);
                if (iter != parent->RegionInfo.end()) {
                    region_info_t& regInfo = (*iter).second;
                    regInfo.file = pResource;
                    deleteFile = deleteInstrument = false;
                } else {
                    pInstr->DeleteRegion(pRegion);
                }
            }

            if (deleteInstrument) pResource->DeleteInstrument(pInstr);
        }

        if (deleteFile) {
            delete pResource;
            delete (::RIFF::File*) pArg;
        } else {
            dmsg(2,("keeping some samples that are in use..."));
            for (int i = pResource->GetSampleCount() - 1; i >= 0; i--) {
                ::sf2::Sample* sample = pResource->GetSample(i);
                if (parent->SampleRefCount.find(sample) == parent->SampleRefCount.end()) {
                    pResource->DeleteSample(sample);
                }
            }
        }

        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	/***************************************************************************
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
27	#include "InstrumentResourceManager.h"
28	#include "EngineChannel.h"
29	#include "Engine.h"
30
31	#include "../../common/global_private.h"
32	#include "../../common/Path.h"
33	#include "../../plugins/InstrumentEditorFactory.h"
34
35
36	namespace LinuxSampler { namespace sf2 {
37
38	// data stored as long as an instrument resource exists
39	struct instr_entry_t {
40	InstrumentManager::instrument_id_t ID;
41	::sf2::File* pSf2;
42	uint MaxSamplesPerCycle; ///< if some engine requests an already allocated instrument with a higher value, we have to reallocate the instrument
43	};
44
45	// some data needed for the libgig callback function
46	struct progress_callback_arg_t {
47	InstrumentResourceManager* pManager;
48	InstrumentManager::instrument_id_t* pInstrumentKey;
49	};
50
51	std::vector<InstrumentResourceManager::instrument_id_t> InstrumentResourceManager::Instruments() {
52	return Entries();
53	}
54
55	String InstrumentResourceManager::GetInstrumentName(instrument_id_t ID) {
56	Lock();
57	::sf2::InstrumentBase* pInstrument = Resource(ID, false);
58	String res = (pInstrument) ? pInstrument->GetName() : "";
59	Unlock();
60	return res;
61	}
62
63	std::vector<InstrumentResourceManager::instrument_id_t> InstrumentResourceManager::GetInstrumentFileContent(String File) throw (InstrumentManagerException) {
64	::RIFF::File* riff = NULL;
65	::sf2::File* sf2 = NULL;
66	try {
67	std::vector<instrument_id_t> result;
68	riff = new ::RIFF::File(File);
69	sf2 = new ::sf2::File(riff);
70	for (int i = 0; i < GetSfInstrumentCount(sf2); i++) {
71	instrument_id_t id;
72	id.FileName = File;
73	id.Index = i;
74	result.push_back(id);
75	}
76	if (sf2) delete sf2;
77	if (riff) delete riff;
78	return result;
79	} catch (::RIFF::Exception e) {
80	if (sf2) delete sf2;
81	if (riff) delete riff;
82	throw InstrumentManagerException(e.Message);
83	} catch (...) {
84	if (sf2) delete sf2;
85	if (riff) delete riff;
86	throw InstrumentManagerException("Unknown exception while trying to parse '" + File + "'");
87	}
88	}
89
90	InstrumentResourceManager::instrument_info_t InstrumentResourceManager::GetInstrumentInfo(instrument_id_t ID) throw (InstrumentManagerException) {
91	Lock();
92	::sf2::InstrumentBase* pInstrument = Resource(ID, false);
93	bool loaded = (pInstrument != NULL);
94	if (!loaded) Unlock();
95
96	::RIFF::File* riff = NULL;
97	::sf2::File* sf2 = NULL;
98	try {
99	if(!loaded) {
100	riff = new ::RIFF::File(ID.FileName);
101	sf2 = new ::sf2::File(riff);
102	pInstrument = GetSfInstrument(sf2, ID.Index);
103	}
104
105	instrument_info_t info;
106	for (int i = 0; i < 128; i++) { info.KeyBindings[i] = info.KeySwitchBindings[i] = 0; }
107
108	::sf2::File* pFile = pInstrument->GetFile();
109
110	info.FormatVersion = ToString(pFile->pInfo->pVer->Major);
111	info.Product = pFile->pInfo->Product;
112	info.Artists = pFile->pInfo->Engineers;
113
114	info.InstrumentName = pInstrument->Name;
115
116	for (int i = 0; i < pInstrument->GetRegionCount(); i++) {
117	int low = pInstrument->GetRegion(i)->loKey;
118	int high = pInstrument->GetRegion(i)->hiKey;
119	if (low < 0 \|\| low > 127 \|\| high < 0 \|\| high > 127 \|\| low > high) {
120	std::cerr << "Invalid key range: " << low << " - " << high << std::endl;
121	} else {
122	for (int i = low; i <= high; i++) info.KeyBindings[i] = 1;
123	}
124	}
125
126	if (loaded) Unlock();
127
128	if (sf2) delete sf2;
129	if (riff) delete riff;
130	return info;
131	} catch (::sf2::Exception e) {
132	if (loaded) Unlock();
133	if (sf2) delete sf2;
134	if (riff) delete riff;
135	throw InstrumentManagerException(e.Message);
136	} catch (...) {
137	if (loaded) Unlock();
138	if (sf2) delete sf2;
139	if (riff) delete riff;
140	throw InstrumentManagerException("Unknown exception while trying to parse '" + ID.FileName + "'");
141	}
142	}
143
144	::sf2::InstrumentBase* InstrumentResourceManager::Create(instrument_id_t Key, InstrumentConsumer* pConsumer, void*& pArg) {
145	// get sfz file from internal sfz file manager
146	::sf2::File* pSf2 = Sf2s.Borrow(Key.FileName, (Sf2Consumer*) Key.Index); // conversion kinda hackish :/
147
148	dmsg(1,("Loading sf2 instrument ('%s',%d)...",Key.FileName.c_str(),Key.Index));
149	::sf2::InstrumentBase* pInstrument = GetSfInstrument(pSf2, Key.Index);
150	dmsg(1,("OK\n"));
151
152	// cache initial samples points (for actually needed samples)
153	dmsg(1,("Caching initial samples..."));
154	float regTotal = 0, regCurrent = 0;
155	for(int i = 0 ; i < pInstrument->GetRegionCount(); i++) {
156	::sf2::Instrument* sf2Instr = pInstrument->GetRegion(i)->pInstrument;
157	if(sf2Instr) regTotal += sf2Instr->GetRegionCount();
158	else regTotal++; // if sf2Instr is null, than pInstrument is not a preset
159	}
160	for(int i = 0 ; i < pInstrument->GetRegionCount(); i++) {
161	::sf2::Instrument* sf2Instr = pInstrument->GetRegion(i)->pInstrument;
162	::sf2::Sample* sf2Sample = pInstrument->GetRegion(i)->GetSample();
163	if(sf2Instr != NULL) {
164	// pInstrument is ::sf2::Preset
165	for(int j = 0; j < sf2Instr->GetRegionCount(); j++) {
166	const float localProgress = regCurrent++ / regTotal;
167	DispatchResourceProgressEvent(Key, localProgress);
168	CacheInitialSamples(sf2Instr->GetRegion(j)->GetSample(), dynamic_cast<AbstractEngineChannel*>(pConsumer));
169	}
170	} else if(sf2Sample != NULL) {
171	// pInstrument is ::sf2::Instrument
172	CacheInitialSamples(sf2Sample, dynamic_cast<AbstractEngineChannel*>(pConsumer));
173	}
174	}
175	dmsg(1,("OK\n"));
176	DispatchResourceProgressEvent(Key, 1.0f); // done; notify all consumers about progress 100%
177
178	// we need the following for destruction later
179	instr_entry_t* pEntry = new instr_entry_t;
180	pEntry->ID.FileName = Key.FileName;
181	pEntry->ID.Index = Key.Index;
182	pEntry->pSf2 = pSf2;
183
184	EngineChannel* pEngineChannel = dynamic_cast<EngineChannel*>(pConsumer);
185	// and we save this to check if we need to reallocate for a engine with higher value of 'MaxSamplesPerSecond'
186	pEntry->MaxSamplesPerCycle =
187	(!pEngineChannel) ? 0 /* don't care for instrument editors */ :
188	(pEngineChannel->GetEngine()) ?
189	dynamic_cast<Engine*>(pEngineChannel->GetEngine())->pAudioOutputDevice->MaxSamplesPerCycle()
190	: GIG_RESOURCE_MANAGER_DEFAULT_MAX_SAMPLES_PER_CYCLE;
191	pArg = pEntry;
192
193	return pInstrument;
194	}
195
196	void InstrumentResourceManager::Destroy( ::sf2::InstrumentBase* pResource, void* pArg) {
197	instr_entry_t* pEntry = (instr_entry_t*) pArg;
198	// we don't need the .sf2 file here anymore
199	Sf2s.HandBack(pEntry->pSf2, (Sf2Consumer*) pEntry->ID.Index); // conversion kinda hackish :/
200	delete pEntry;
201	}
202
203	void InstrumentResourceManager::OnBorrow(::sf2::InstrumentBase* pResource, InstrumentConsumer* pConsumer, void*& pArg) {
204	instr_entry_t* pEntry = (instr_entry_t*) pArg;
205	EngineChannel* pEngineChannel = dynamic_cast<EngineChannel*>(pConsumer);
206	uint maxSamplesPerCycle =
207	(pEngineChannel && pEngineChannel->GetEngine()) ? dynamic_cast<Engine*>(pEngineChannel->GetEngine())->pAudioOutputDevice->MaxSamplesPerCycle()
208	: GIG_RESOURCE_MANAGER_DEFAULT_MAX_SAMPLES_PER_CYCLE;
209	if (pEntry->MaxSamplesPerCycle < maxSamplesPerCycle) {
210	Update(pResource, pConsumer);
211	}
212	}
213
214	void InstrumentResourceManager::DeleteRegionIfNotUsed(::sf2::Region* pRegion, region_info_t* pRegInfo) {
215	// TODO: we could delete Region and Instrument here if they have become unused
216	}
217
218	void InstrumentResourceManager::DeleteSampleIfNotUsed(::sf2::Sample* pSample, region_info_t* pRegInfo) {
219	::sf2::File* sf2 = pRegInfo->file;
220	::RIFF::File* riff = static_cast< ::RIFF::File*>(pRegInfo->pArg);
221	if (sf2) {
222	sf2->DeleteSample(pSample);
223	if (!sf2->HasSamples()) {
224	dmsg(2,("No more samples in use - freeing sf2\n"));
225	delete sf2;
226	delete riff;
227	}
228	}
229	}
230
231
232
233	// internal sfz file manager
234
235	::sf2::File* InstrumentResourceManager::Sf2ResourceManager::Create(String Key, Sf2Consumer* pConsumer, void*& pArg) {
236	dmsg(1,("Loading sf2 file \'%s\'...", Key.c_str()));
237	::RIFF::File* pRIFF = new ::RIFF::File(Key);
238	::sf2::File* pSf2 = new ::sf2::File(pRIFF);
239	pArg = pRIFF;
240	dmsg(1,("OK\n"));
241	return pSf2;
242	}
243
244	void InstrumentResourceManager::Sf2ResourceManager::Destroy(::sf2::File* pResource, void* pArg) {
245	dmsg(1,("Freeing sf2 file from memory..."));
246
247	// Delete as much as possible of the sf2 file. Some of the
248	// regions and samples may still be in use - these
249	// will be deleted later by the HandBackRegion function.
250	bool deleteFile = true;
251
252	for (int i = pResource->GetInstrumentCount() - 1; i >= 0; i--) {
253	::sf2::Instrument* pInstr = pResource->GetInstrument(i);
254	bool deleteInstrument = true;
255
256	for (int j = pInstr->GetRegionCount() - 1; j >= 0 ; j--) {
257	::sf2::Region* pRegion = pInstr->GetRegion(j);
258	std::map< ::sf2::Region*, region_info_t>::iterator iter = parent->RegionInfo.find(pRegion);
259	if (iter != parent->RegionInfo.end()) {
260	region_info_t& regInfo = (*iter).second;
261	regInfo.file = pResource;
262	deleteFile = deleteInstrument = false;
263	} else {
264	pInstr->DeleteRegion(pRegion);
265	}
266	}
267
268	if (deleteInstrument) pResource->DeleteInstrument(pInstr);
269	}
270
271	if (deleteFile) {
272	delete pResource;
273	delete (::RIFF::File*) pArg;
274	} else {
275	dmsg(2,("keeping some samples that are in use..."));
276	for (int i = pResource->GetSampleCount() - 1; i >= 0; i--) {
277	::sf2::Sample* sample = pResource->GetSample(i);
278	if (parent->SampleRefCount.find(sample) == parent->SampleRefCount.end()) {
279	pResource->DeleteSample(sample);
280	}
281	}
282	}
283
284	dmsg(1,("OK\n"));
285	}
286
287	int InstrumentResourceManager::GetSfInstrumentCount(::sf2::File* pFile) {
288	return pFile->GetInstrumentCount() + pFile->GetPresetCount();
289	}
290
291	::sf2::InstrumentBase* InstrumentResourceManager::GetSfInstrument(::sf2::File* pFile, int idx) {
292	if (idx >= pFile->GetInstrumentCount() + pFile->GetPresetCount()) {
293	throw InstrumentManagerException("There is no instrument with index " + ToString(idx));
294	}
295
296	if (idx < pFile->GetInstrumentCount()) {
297	return pFile->GetInstrument(idx);
298	}
299
300	int presetIdx = idx - pFile->GetInstrumentCount();
301	return pFile->GetPreset(presetIdx);
302	}
303
304	}} // namespace LinuxSampler::sfz