drivers/midi/MidiInstrumentMapper.cpp

/***************************************************************************
 *                                                                         *
 *   Copyright (C) 2006 - 2007 Christian Schoenebeck                       *
 *                                                                         *
 *   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                                                   *
 ***************************************************************************/

#include "MidiInstrumentMapper.h"

#include "../../common/global_private.h"
#include "../../common/Mutex.h"
#include "../../engines/EngineFactory.h"
#include "../../engines/Engine.h"

namespace LinuxSampler {

    // same as entry_t but without 'LoadMode'
    struct private_entry_t {
        String EngineName;
        String InstrumentFile;
        uint   InstrumentIndex;
        float  Volume;
        String Name;
    };

    // internal map type (MIDI bank&prog) -> (Engine,File,Index)
    class MidiInstrumentMap : public std::map<midi_prog_index_t,private_entry_t> {
        public:
            String name;
    };

    // here we store all maps
    std::map<int,MidiInstrumentMap> midiMaps;

    // for synchronization of midiMaps
    Mutex midiMapsMutex;

    ListenerList<MidiInstrumentCountListener*> MidiInstrumentMapper::llMidiInstrumentCountListeners;
    ListenerList<MidiInstrumentInfoListener*> MidiInstrumentMapper::llMidiInstrumentInfoListeners;
    ListenerList<MidiInstrumentMapCountListener*> MidiInstrumentMapper::llMidiInstrumentMapCountListeners;
    ListenerList<MidiInstrumentMapInfoListener*> MidiInstrumentMapper::llMidiInstrumentMapInfoListeners;
    int MidiInstrumentMapper::DefaultMap;
    
    void MidiInstrumentMapper::AddMidiInstrumentCountListener(MidiInstrumentCountListener* l) {
        llMidiInstrumentCountListeners.AddListener(l);
    }

    void MidiInstrumentMapper::RemoveMidiInstrumentCountListener(MidiInstrumentCountListener* l) {
        llMidiInstrumentCountListeners.RemoveListener(l);
    }

    void MidiInstrumentMapper::fireMidiInstrumentCountChanged(int MapId, int NewCount) {
        for (int i = 0; i < llMidiInstrumentCountListeners.GetListenerCount(); i++) {
            llMidiInstrumentCountListeners.GetListener(i)->MidiInstrumentCountChanged(MapId, NewCount);
        }
    }

    void MidiInstrumentMapper::AddMidiInstrumentInfoListener(MidiInstrumentInfoListener* l) {
        llMidiInstrumentInfoListeners.AddListener(l);
    }

    void MidiInstrumentMapper::RemoveMidiInstrumentInfoListener(MidiInstrumentInfoListener* l) {
        llMidiInstrumentInfoListeners.RemoveListener(l);
    }

    void MidiInstrumentMapper::fireMidiInstrumentInfoChanged(int MapId, int Bank, int Program) {
        for (int i = 0; i < llMidiInstrumentInfoListeners.GetListenerCount(); i++) {
            llMidiInstrumentInfoListeners.GetListener(i)->MidiInstrumentInfoChanged(MapId, Bank, Program);
        }
    }

    void MidiInstrumentMapper::AddMidiInstrumentMapCountListener(MidiInstrumentMapCountListener* l) {
        llMidiInstrumentMapCountListeners.AddListener(l);
    }

    void MidiInstrumentMapper::RemoveMidiInstrumentMapCountListener(MidiInstrumentMapCountListener* l) {
        llMidiInstrumentMapCountListeners.RemoveListener(l);
    }

    void MidiInstrumentMapper::fireMidiInstrumentMapCountChanged(int NewCount) {
        for (int i = 0; i < llMidiInstrumentMapCountListeners.GetListenerCount(); i++) {
            llMidiInstrumentMapCountListeners.GetListener(i)->MidiInstrumentMapCountChanged(NewCount);
        }
    }

    void MidiInstrumentMapper::AddMidiInstrumentMapInfoListener(MidiInstrumentMapInfoListener* l) {
        llMidiInstrumentMapInfoListeners.AddListener(l);
    }

    void MidiInstrumentMapper::RemoveMidiInstrumentMapInfoListener(MidiInstrumentMapInfoListener* l) {
        llMidiInstrumentMapInfoListeners.RemoveListener(l);
    }

    void MidiInstrumentMapper::fireMidiInstrumentMapInfoChanged(int MapId) {
        for (int i = 0; i < llMidiInstrumentMapInfoListeners.GetListenerCount(); i++) {
            llMidiInstrumentMapInfoListeners.GetListener(i)->MidiInstrumentMapInfoChanged(MapId);
        }
    }

    void MidiInstrumentMapper::AddOrReplaceEntry(int Map, midi_prog_index_t Index, entry_t Entry, bool bInBackground) throw (Exception) {
        if (bInBackground) {
            dmsg(3,("MidiInstrumentMapper: updating mapping %d (%d,%d,%d) -> ('%s','%s',%d) with vol=%f, mode=%d in background\n",
                Map,
                Index.midi_bank_msb,Index.midi_bank_lsb,Index.midi_prog,
                Entry.EngineName.c_str(),Entry.InstrumentFile.c_str(),Entry.InstrumentIndex,
                Entry.Volume,Entry.LoadMode)
            );
        } else {
            dmsg(3,("MidiInstrumentMapper: updating mapping %d (%d,%d,%d) -> ('%s','%s',%d) with vol=%f, mode=%d\n",
                Map,
                Index.midi_bank_msb,Index.midi_bank_lsb,Index.midi_prog,
                Entry.EngineName.c_str(),Entry.InstrumentFile.c_str(),Entry.InstrumentIndex,
                Entry.Volume,Entry.LoadMode)
            );
        }
        midiMapsMutex.Lock();
        if (midiMaps.empty()) {
            midiMapsMutex.Unlock();
            throw Exception("There is no MIDI instrument map, you have to add one first.");
        }
        midiMapsMutex.Unlock();
        if (!Entry.InstrumentFile.size())
            throw Exception("No instrument file name given");
        // TODO: an easy one - we should check here if given file exists and throw an exception if it doesn't
        if (Entry.Volume < 0.0)
            throw Exception("Volume may not be a negative value");
        Engine* pEngine = EngineFactory::Create(Entry.EngineName);
        if (!pEngine)
            throw Exception("No such engine type '"+Entry.EngineName+"'");
        Entry.EngineName = pEngine->EngineName(); // make sure to use the official engine name
        if (pEngine->GetInstrumentManager()) {
            InstrumentManager::instrument_id_t id;
            id.FileName = Entry.InstrumentFile;
            id.Index    = Entry.InstrumentIndex;
            if (Entry.LoadMode != DONTCARE) {
                if (bInBackground)
                    pEngine->GetInstrumentManager()->SetModeInBackground(id, static_cast<InstrumentManager::mode_t>(Entry.LoadMode));
                else
                    pEngine->GetInstrumentManager()->SetMode(id, static_cast<InstrumentManager::mode_t>(Entry.LoadMode));
            }
        } else {
            dmsg(1,("WARNING: no InstrumentManager for engine '%s'\n",Entry.EngineName.c_str()));
        }
        private_entry_t privateEntry;
        privateEntry.EngineName      = Entry.EngineName;
        privateEntry.InstrumentFile  = Entry.InstrumentFile;
        privateEntry.InstrumentIndex = Entry.InstrumentIndex;
        privateEntry.Volume          = Entry.Volume;
        privateEntry.Name            = Entry.Name;

        bool Replaced = false;
        int InstrCount = 0;

        midiMapsMutex.Lock();
        std::map<int,MidiInstrumentMap>::iterator iterMap = midiMaps.find(Map);
        if (iterMap != midiMaps.end()) { // map found
            Replaced = (iterMap->second.find(Index) != iterMap->second.end());
            iterMap->second[Index] = privateEntry;
            InstrCount = iterMap->second.size();
        } else { // no such map
            midiMapsMutex.Unlock();
            EngineFactory::Destroy(pEngine);
            throw Exception("There is no MIDI instrument map " + ToString(Map));
        }
        midiMapsMutex.Unlock();
        EngineFactory::Destroy(pEngine);
        
        if (Replaced) {
            int Bank = (int(Index.midi_bank_msb) << 7) | int(Index.midi_bank_lsb);
            fireMidiInstrumentInfoChanged(Map, Bank, Index.midi_prog);
        } else {
            fireMidiInstrumentCountChanged(Map, InstrCount);
        }
    }

    void MidiInstrumentMapper::RemoveEntry(int Map, midi_prog_index_t Index) {
        int InstrCount = -1;

        midiMapsMutex.Lock();
        std::map<int,MidiInstrumentMap>::iterator iterMap = midiMaps.find(Map);
        if (iterMap != midiMaps.end()) { // map found
            iterMap->second.erase(Index); // remove entry
            InstrCount = iterMap->second.size();
        }
        midiMapsMutex.Unlock();
        
        if (InstrCount != -1) {
            fireMidiInstrumentCountChanged(Map, InstrCount);
        }
    }

    void MidiInstrumentMapper::RemoveAllEntries(int Map) {
        int InstrCount = -1;

        midiMapsMutex.Lock();
        std::map<int,MidiInstrumentMap>::iterator iterMap = midiMaps.find(Map);
        if (iterMap != midiMaps.end()) { // map found
            iterMap->second.clear(); // clear that map
            InstrCount = 0;
        }
        midiMapsMutex.Unlock();
        
        if (InstrCount != -1) {
            fireMidiInstrumentCountChanged(Map, InstrCount);
        }
    }

    std::map<midi_prog_index_t,MidiInstrumentMapper::entry_t> MidiInstrumentMapper::Entries(int Map) throw (Exception) {
        std::map<midi_prog_index_t,entry_t> result;

        // copy the internal map first
        midiMapsMutex.Lock();
        std::map<int,MidiInstrumentMap>::iterator iterMap = midiMaps.find(Map);
        if (iterMap == midiMaps.end()) { // no such map
            midiMapsMutex.Unlock();
            throw Exception("There is no MIDI instrument map " + ToString(Map));
        }
        for (std::map<midi_prog_index_t,private_entry_t>::iterator iterEntry = iterMap->second.begin();
             iterEntry != iterMap->second.end(); iterEntry++)
        {
            entry_t entry;
            entry.EngineName      = iterEntry->second.EngineName;
            entry.InstrumentFile  = iterEntry->second.InstrumentFile;
            entry.InstrumentIndex = iterEntry->second.InstrumentIndex;
            entry.Volume          = iterEntry->second.Volume;
            entry.Name            = iterEntry->second.Name;
            result[iterEntry->first] = entry;
        }
        midiMapsMutex.Unlock();

        // complete it with current LoadMode of each entry
        for (std::map<midi_prog_index_t,entry_t>::iterator iter = result.begin();
             iter != result.end(); iter++)
        {
            entry_t& entry = iter->second;
            Engine* pEngine = EngineFactory::Create(entry.EngineName);
            if (!pEngine) { // invalid mapping
                RemoveEntry(Map, iter->first);
                result.erase(iter);
                continue;
            }
            InstrumentManager* pManager = pEngine->GetInstrumentManager();
            if (pManager) { // engine provides an InstrumentManager
                InstrumentManager::instrument_id_t id;
                id.FileName = entry.InstrumentFile;
                id.Index    = entry.InstrumentIndex;
                entry.LoadMode = static_cast<mode_t>(pManager->GetMode(id));
            } else { // engine does not provide an InstrumentManager
                // use default value
                entry.LoadMode = ON_DEMAND;
            }
            EngineFactory::Destroy(pEngine);
        }
        return result;
    }

    std::vector<int> MidiInstrumentMapper::Maps() {
        std::vector<int> result;
        midiMapsMutex.Lock();
        for (std::map<int,MidiInstrumentMap>::iterator iterMap = midiMaps.begin();
             iterMap != midiMaps.end(); iterMap++)
        {
            result.push_back(iterMap->first);
        }
        midiMapsMutex.Unlock();
        return result;
    }

    int MidiInstrumentMapper::GetMapCount() {
        midiMapsMutex.Lock();
        int i = midiMaps.size();
        midiMapsMutex.Unlock();
        return i;
    }

    int MidiInstrumentMapper::AddMap(String MapName) throw (Exception) {
        int ID;
        midiMapsMutex.Lock();
        if (midiMaps.empty()) ID = 0;
        else {
            // get the highest existing map ID
            uint lastIndex = (--(midiMaps.end()))->first;
            // check if we reached the index limit
            if (lastIndex + 1 < lastIndex) {
                // search for an unoccupied map ID starting from 0
                for (uint i = 0; i < lastIndex; i++) {
                    if (midiMaps.find(i) != midiMaps.end()) continue;
                    // we found an unused ID, so insert the new map there
                    ID = i;
                    goto __create_map;
                }
                throw Exception("Internal error: could not find unoccupied MIDI instrument map ID.");
            }
            ID = lastIndex + 1;
        }
        __create_map:
        midiMaps[ID].name = MapName;
        
        fireMidiInstrumentMapCountChanged(Maps().size());
        // If there were no maps until now we must set a default map.
        if (midiMaps.size() == 1) SetDefaultMap(ID);
        midiMapsMutex.Unlock();
        
        return ID;
    }

    String MidiInstrumentMapper::MapName(int Map) throw (Exception) {
        String result;
        midiMapsMutex.Lock();
        std::map<int,MidiInstrumentMap>::iterator iterMap = midiMaps.find(Map);
        if (iterMap == midiMaps.end()) {
            midiMapsMutex.Unlock();
            throw Exception("There is no MIDI instrument map " + ToString(Map));
        }
        result = iterMap->second.name;
        midiMapsMutex.Unlock();
        return result;
    }

    void MidiInstrumentMapper::RenameMap(int Map, String NewName) throw (Exception) {
        midiMapsMutex.Lock();
        std::map<int,MidiInstrumentMap>::iterator iterMap = midiMaps.find(Map);
        if (iterMap == midiMaps.end()) {
            midiMapsMutex.Unlock();
            throw Exception("There is no MIDI instrument map " + ToString(Map));
        }
        iterMap->second.name = NewName;
        midiMapsMutex.Unlock();
        fireMidiInstrumentMapInfoChanged(Map);
    }

    void MidiInstrumentMapper::RemoveMap(int Map) {
        midiMapsMutex.Lock();
        midiMaps.erase(Map);
        if(Map == GetDefaultMap()) {
            SetDefaultMap(midiMaps.empty() ? -1 : (*(midiMaps.begin())).first);
        }
        fireMidiInstrumentMapCountChanged(Maps().size());
        midiMapsMutex.Unlock();
    }

    void MidiInstrumentMapper::RemoveAllMaps() {
        midiMapsMutex.Lock();
        midiMaps.clear();
        SetDefaultMap(-1);
        fireMidiInstrumentMapCountChanged(Maps().size());
        midiMapsMutex.Unlock();
    }

    int MidiInstrumentMapper::GetDefaultMap() {
        midiMapsMutex.Lock();
        int i = DefaultMap;
        midiMapsMutex.Unlock();
        return i;
    }

    void MidiInstrumentMapper::SetDefaultMap(int MapId) {
        midiMapsMutex.Lock();
        DefaultMap = MapId;
        midiMapsMutex.Unlock();
        
        if (MapId != -1) fireMidiInstrumentMapInfoChanged(MapId);
    }

    optional<MidiInstrumentMapper::entry_t> MidiInstrumentMapper::GetEntry(int Map, midi_prog_index_t Index) {
        optional<entry_t> result;
        midiMapsMutex.Lock();
        std::map<int,MidiInstrumentMap>::iterator iterMap = midiMaps.find(Map);
        if (iterMap != midiMaps.end()) { // map found
            std::map<midi_prog_index_t,private_entry_t>::iterator iterEntry = iterMap->second.find(Index);
            if (iterEntry != iterMap->second.end()) {
                entry_t entry;
                entry.EngineName      = iterEntry->second.EngineName;
                entry.InstrumentFile  = iterEntry->second.InstrumentFile;
                entry.InstrumentIndex = iterEntry->second.InstrumentIndex;
                entry.Volume          = iterEntry->second.Volume;
                //TODO: for now we skip the LoadMode and Name entry here, since we don't need it in the MidiInputPort
                result = entry;
            }
        }
        midiMapsMutex.Unlock();
        return result;
    }

} // namespace LinuxSampler
1	/***************************************************************************
2	* *
3	* Copyright (C) 2006 - 2007 Christian Schoenebeck *
4	* *
5	* This library is free software; you can redistribute it and/or modify *
6	* it under the terms of the GNU General Public License as published by *
7	* the Free Software Foundation; either version 2 of the License, or *
8	* (at your option) any later version. *
9	* *
10	* This library is distributed in the hope that it will be useful, *
11	* but WITHOUT ANY WARRANTY; without even the implied warranty of *
12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13	* GNU General Public License for more details. *
14	* *
15	* You should have received a copy of the GNU General Public License *
16	* along with this library; if not, write to the Free Software *
17	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
18	* MA 02111-1307 USA *
19	***************************************************************************/
20
21	#include "MidiInstrumentMapper.h"
22
23	#include "../../common/global_private.h"
24	#include "../../common/Mutex.h"
25	#include "../../engines/EngineFactory.h"
26	#include "../../engines/Engine.h"
27
28	namespace LinuxSampler {
29
30	// same as entry_t but without 'LoadMode'
31	struct private_entry_t {
32	String EngineName;
33	String InstrumentFile;
34	uint InstrumentIndex;
35	float Volume;
36	String Name;
37	};
38
39	// internal map type (MIDI bank&prog) -> (Engine,File,Index)
40	class MidiInstrumentMap : public std::map<midi_prog_index_t,private_entry_t> {
41	public:
42	String name;
43	};
44
45	// here we store all maps
46	std::map<int,MidiInstrumentMap> midiMaps;
47
48	// for synchronization of midiMaps
49	Mutex midiMapsMutex;
50
51	ListenerList<MidiInstrumentCountListener*> MidiInstrumentMapper::llMidiInstrumentCountListeners;
52	ListenerList<MidiInstrumentInfoListener*> MidiInstrumentMapper::llMidiInstrumentInfoListeners;
53	ListenerList<MidiInstrumentMapCountListener*> MidiInstrumentMapper::llMidiInstrumentMapCountListeners;
54	ListenerList<MidiInstrumentMapInfoListener*> MidiInstrumentMapper::llMidiInstrumentMapInfoListeners;
55	int MidiInstrumentMapper::DefaultMap;
56
57	void MidiInstrumentMapper::AddMidiInstrumentCountListener(MidiInstrumentCountListener* l) {
58	llMidiInstrumentCountListeners.AddListener(l);
59	}
60
61	void MidiInstrumentMapper::RemoveMidiInstrumentCountListener(MidiInstrumentCountListener* l) {
62	llMidiInstrumentCountListeners.RemoveListener(l);
63	}
64
65	void MidiInstrumentMapper::fireMidiInstrumentCountChanged(int MapId, int NewCount) {
66	for (int i = 0; i < llMidiInstrumentCountListeners.GetListenerCount(); i++) {
67	llMidiInstrumentCountListeners.GetListener(i)->MidiInstrumentCountChanged(MapId, NewCount);
68	}
69	}
70
71	void MidiInstrumentMapper::AddMidiInstrumentInfoListener(MidiInstrumentInfoListener* l) {
72	llMidiInstrumentInfoListeners.AddListener(l);
73	}
74
75	void MidiInstrumentMapper::RemoveMidiInstrumentInfoListener(MidiInstrumentInfoListener* l) {
76	llMidiInstrumentInfoListeners.RemoveListener(l);
77	}
78
79	void MidiInstrumentMapper::fireMidiInstrumentInfoChanged(int MapId, int Bank, int Program) {
80	for (int i = 0; i < llMidiInstrumentInfoListeners.GetListenerCount(); i++) {
81	llMidiInstrumentInfoListeners.GetListener(i)->MidiInstrumentInfoChanged(MapId, Bank, Program);
82	}
83	}
84
85	void MidiInstrumentMapper::AddMidiInstrumentMapCountListener(MidiInstrumentMapCountListener* l) {
86	llMidiInstrumentMapCountListeners.AddListener(l);
87	}
88
89	void MidiInstrumentMapper::RemoveMidiInstrumentMapCountListener(MidiInstrumentMapCountListener* l) {
90	llMidiInstrumentMapCountListeners.RemoveListener(l);
91	}
92
93	void MidiInstrumentMapper::fireMidiInstrumentMapCountChanged(int NewCount) {
94	for (int i = 0; i < llMidiInstrumentMapCountListeners.GetListenerCount(); i++) {
95	llMidiInstrumentMapCountListeners.GetListener(i)->MidiInstrumentMapCountChanged(NewCount);
96	}
97	}
98
99	void MidiInstrumentMapper::AddMidiInstrumentMapInfoListener(MidiInstrumentMapInfoListener* l) {
100	llMidiInstrumentMapInfoListeners.AddListener(l);
101	}
102
103	void MidiInstrumentMapper::RemoveMidiInstrumentMapInfoListener(MidiInstrumentMapInfoListener* l) {
104	llMidiInstrumentMapInfoListeners.RemoveListener(l);
105	}
106
107	void MidiInstrumentMapper::fireMidiInstrumentMapInfoChanged(int MapId) {
108	for (int i = 0; i < llMidiInstrumentMapInfoListeners.GetListenerCount(); i++) {
109	llMidiInstrumentMapInfoListeners.GetListener(i)->MidiInstrumentMapInfoChanged(MapId);
110	}
111	}
112
113	void MidiInstrumentMapper::AddOrReplaceEntry(int Map, midi_prog_index_t Index, entry_t Entry, bool bInBackground) throw (Exception) {
114	if (bInBackground) {
115	dmsg(3,("MidiInstrumentMapper: updating mapping %d (%d,%d,%d) -> ('%s','%s',%d) with vol=%f, mode=%d in background\n",
116	Map,
117	Index.midi_bank_msb,Index.midi_bank_lsb,Index.midi_prog,
118	Entry.EngineName.c_str(),Entry.InstrumentFile.c_str(),Entry.InstrumentIndex,
119	Entry.Volume,Entry.LoadMode)
120	);
121	} else {
122	dmsg(3,("MidiInstrumentMapper: updating mapping %d (%d,%d,%d) -> ('%s','%s',%d) with vol=%f, mode=%d\n",
123	Map,
124	Index.midi_bank_msb,Index.midi_bank_lsb,Index.midi_prog,
125	Entry.EngineName.c_str(),Entry.InstrumentFile.c_str(),Entry.InstrumentIndex,
126	Entry.Volume,Entry.LoadMode)
127	);
128	}
129	midiMapsMutex.Lock();
130	if (midiMaps.empty()) {
131	midiMapsMutex.Unlock();
132	throw Exception("There is no MIDI instrument map, you have to add one first.");
133	}
134	midiMapsMutex.Unlock();
135	if (!Entry.InstrumentFile.size())
136	throw Exception("No instrument file name given");
137	// TODO: an easy one - we should check here if given file exists and throw an exception if it doesn't
138	if (Entry.Volume < 0.0)
139	throw Exception("Volume may not be a negative value");
140	Engine* pEngine = EngineFactory::Create(Entry.EngineName);
141	if (!pEngine)
142	throw Exception("No such engine type '"+Entry.EngineName+"'");
143	Entry.EngineName = pEngine->EngineName(); // make sure to use the official engine name
144	if (pEngine->GetInstrumentManager()) {
145	InstrumentManager::instrument_id_t id;
146	id.FileName = Entry.InstrumentFile;
147	id.Index = Entry.InstrumentIndex;
148	if (Entry.LoadMode != DONTCARE) {
149	if (bInBackground)
150	pEngine->GetInstrumentManager()->SetModeInBackground(id, static_cast<InstrumentManager::mode_t>(Entry.LoadMode));
151	else
152	pEngine->GetInstrumentManager()->SetMode(id, static_cast<InstrumentManager::mode_t>(Entry.LoadMode));
153	}
154	} else {
155	dmsg(1,("WARNING: no InstrumentManager for engine '%s'\n",Entry.EngineName.c_str()));
156	}
157	private_entry_t privateEntry;
158	privateEntry.EngineName = Entry.EngineName;
159	privateEntry.InstrumentFile = Entry.InstrumentFile;
160	privateEntry.InstrumentIndex = Entry.InstrumentIndex;
161	privateEntry.Volume = Entry.Volume;
162	privateEntry.Name = Entry.Name;
163
164	bool Replaced = false;
165	int InstrCount = 0;
166
167	midiMapsMutex.Lock();
168	std::map<int,MidiInstrumentMap>::iterator iterMap = midiMaps.find(Map);
169	if (iterMap != midiMaps.end()) { // map found
170	Replaced = (iterMap->second.find(Index) != iterMap->second.end());
171	iterMap->second[Index] = privateEntry;
172	InstrCount = iterMap->second.size();
173	} else { // no such map
174	midiMapsMutex.Unlock();
175	EngineFactory::Destroy(pEngine);
176	throw Exception("There is no MIDI instrument map " + ToString(Map));
177	}
178	midiMapsMutex.Unlock();
179	EngineFactory::Destroy(pEngine);
180
181	if (Replaced) {
182	int Bank = (int(Index.midi_bank_msb) << 7) \| int(Index.midi_bank_lsb);
183	fireMidiInstrumentInfoChanged(Map, Bank, Index.midi_prog);
184	} else {
185	fireMidiInstrumentCountChanged(Map, InstrCount);
186	}
187	}
188
189	void MidiInstrumentMapper::RemoveEntry(int Map, midi_prog_index_t Index) {
190	int InstrCount = -1;
191
192	midiMapsMutex.Lock();
193	std::map<int,MidiInstrumentMap>::iterator iterMap = midiMaps.find(Map);
194	if (iterMap != midiMaps.end()) { // map found
195	iterMap->second.erase(Index); // remove entry
196	InstrCount = iterMap->second.size();
197	}
198	midiMapsMutex.Unlock();
199
200	if (InstrCount != -1) {
201	fireMidiInstrumentCountChanged(Map, InstrCount);
202	}
203	}
204
205	void MidiInstrumentMapper::RemoveAllEntries(int Map) {
206	int InstrCount = -1;
207
208	midiMapsMutex.Lock();
209	std::map<int,MidiInstrumentMap>::iterator iterMap = midiMaps.find(Map);
210	if (iterMap != midiMaps.end()) { // map found
211	iterMap->second.clear(); // clear that map
212	InstrCount = 0;
213	}
214	midiMapsMutex.Unlock();
215
216	if (InstrCount != -1) {
217	fireMidiInstrumentCountChanged(Map, InstrCount);
218	}
219	}
220
221	std::map<midi_prog_index_t,MidiInstrumentMapper::entry_t> MidiInstrumentMapper::Entries(int Map) throw (Exception) {
222	std::map<midi_prog_index_t,entry_t> result;
223
224	// copy the internal map first
225	midiMapsMutex.Lock();
226	std::map<int,MidiInstrumentMap>::iterator iterMap = midiMaps.find(Map);
227	if (iterMap == midiMaps.end()) { // no such map
228	midiMapsMutex.Unlock();
229	throw Exception("There is no MIDI instrument map " + ToString(Map));
230	}
231	for (std::map<midi_prog_index_t,private_entry_t>::iterator iterEntry = iterMap->second.begin();
232	iterEntry != iterMap->second.end(); iterEntry++)
233	{
234	entry_t entry;
235	entry.EngineName = iterEntry->second.EngineName;
236	entry.InstrumentFile = iterEntry->second.InstrumentFile;
237	entry.InstrumentIndex = iterEntry->second.InstrumentIndex;
238	entry.Volume = iterEntry->second.Volume;
239	entry.Name = iterEntry->second.Name;
240	result[iterEntry->first] = entry;
241	}
242	midiMapsMutex.Unlock();
243
244	// complete it with current LoadMode of each entry
245	for (std::map<midi_prog_index_t,entry_t>::iterator iter = result.begin();
246	iter != result.end(); iter++)
247	{
248	entry_t& entry = iter->second;
249	Engine* pEngine = EngineFactory::Create(entry.EngineName);
250	if (!pEngine) { // invalid mapping
251	RemoveEntry(Map, iter->first);
252	result.erase(iter);
253	continue;
254	}
255	InstrumentManager* pManager = pEngine->GetInstrumentManager();
256	if (pManager) { // engine provides an InstrumentManager
257	InstrumentManager::instrument_id_t id;
258	id.FileName = entry.InstrumentFile;
259	id.Index = entry.InstrumentIndex;
260	entry.LoadMode = static_cast<mode_t>(pManager->GetMode(id));
261	} else { // engine does not provide an InstrumentManager
262	// use default value
263	entry.LoadMode = ON_DEMAND;
264	}
265	EngineFactory::Destroy(pEngine);
266	}
267	return result;
268	}
269
270	std::vector<int> MidiInstrumentMapper::Maps() {
271	std::vector<int> result;
272	midiMapsMutex.Lock();
273	for (std::map<int,MidiInstrumentMap>::iterator iterMap = midiMaps.begin();
274	iterMap != midiMaps.end(); iterMap++)
275	{
276	result.push_back(iterMap->first);
277	}
278	midiMapsMutex.Unlock();
279	return result;
280	}
281
282	int MidiInstrumentMapper::GetMapCount() {
283	midiMapsMutex.Lock();
284	int i = midiMaps.size();
285	midiMapsMutex.Unlock();
286	return i;
287	}
288
289	int MidiInstrumentMapper::AddMap(String MapName) throw (Exception) {
290	int ID;
291	midiMapsMutex.Lock();
292	if (midiMaps.empty()) ID = 0;
293	else {
294	// get the highest existing map ID
295	uint lastIndex = (--(midiMaps.end()))->first;
296	// check if we reached the index limit
297	if (lastIndex + 1 < lastIndex) {
298	// search for an unoccupied map ID starting from 0
299	for (uint i = 0; i < lastIndex; i++) {
300	if (midiMaps.find(i) != midiMaps.end()) continue;
301	// we found an unused ID, so insert the new map there
302	ID = i;
303	goto __create_map;
304	}
305	throw Exception("Internal error: could not find unoccupied MIDI instrument map ID.");
306	}
307	ID = lastIndex + 1;
308	}
309	__create_map:
310	midiMaps[ID].name = MapName;
311
312	fireMidiInstrumentMapCountChanged(Maps().size());
313	// If there were no maps until now we must set a default map.
314	if (midiMaps.size() == 1) SetDefaultMap(ID);
315	midiMapsMutex.Unlock();
316
317	return ID;
318	}
319
320	String MidiInstrumentMapper::MapName(int Map) throw (Exception) {
321	String result;
322	midiMapsMutex.Lock();
323	std::map<int,MidiInstrumentMap>::iterator iterMap = midiMaps.find(Map);
324	if (iterMap == midiMaps.end()) {
325	midiMapsMutex.Unlock();
326	throw Exception("There is no MIDI instrument map " + ToString(Map));
327	}
328	result = iterMap->second.name;
329	midiMapsMutex.Unlock();
330	return result;
331	}
332
333	void MidiInstrumentMapper::RenameMap(int Map, String NewName) throw (Exception) {
334	midiMapsMutex.Lock();
335	std::map<int,MidiInstrumentMap>::iterator iterMap = midiMaps.find(Map);
336	if (iterMap == midiMaps.end()) {
337	midiMapsMutex.Unlock();
338	throw Exception("There is no MIDI instrument map " + ToString(Map));
339	}
340	iterMap->second.name = NewName;
341	midiMapsMutex.Unlock();
342	fireMidiInstrumentMapInfoChanged(Map);
343	}
344
345	void MidiInstrumentMapper::RemoveMap(int Map) {
346	midiMapsMutex.Lock();
347	midiMaps.erase(Map);
348	if(Map == GetDefaultMap()) {
349	SetDefaultMap(midiMaps.empty() ? -1 : (*(midiMaps.begin())).first);
350	}
351	fireMidiInstrumentMapCountChanged(Maps().size());
352	midiMapsMutex.Unlock();
353	}
354
355	void MidiInstrumentMapper::RemoveAllMaps() {
356	midiMapsMutex.Lock();
357	midiMaps.clear();
358	SetDefaultMap(-1);
359	fireMidiInstrumentMapCountChanged(Maps().size());
360	midiMapsMutex.Unlock();
361	}
362
363	int MidiInstrumentMapper::GetDefaultMap() {
364	midiMapsMutex.Lock();
365	int i = DefaultMap;
366	midiMapsMutex.Unlock();
367	return i;
368	}
369
370	void MidiInstrumentMapper::SetDefaultMap(int MapId) {
371	midiMapsMutex.Lock();
372	DefaultMap = MapId;
373	midiMapsMutex.Unlock();
374
375	if (MapId != -1) fireMidiInstrumentMapInfoChanged(MapId);
376	}
377
378	optional<MidiInstrumentMapper::entry_t> MidiInstrumentMapper::GetEntry(int Map, midi_prog_index_t Index) {
379	optional<entry_t> result;
380	midiMapsMutex.Lock();
381	std::map<int,MidiInstrumentMap>::iterator iterMap = midiMaps.find(Map);
382	if (iterMap != midiMaps.end()) { // map found
383	std::map<midi_prog_index_t,private_entry_t>::iterator iterEntry = iterMap->second.find(Index);
384	if (iterEntry != iterMap->second.end()) {
385	entry_t entry;
386	entry.EngineName = iterEntry->second.EngineName;
387	entry.InstrumentFile = iterEntry->second.InstrumentFile;
388	entry.InstrumentIndex = iterEntry->second.InstrumentIndex;
389	entry.Volume = iterEntry->second.Volume;
390	//TODO: for now we skip the LoadMode and Name entry here, since we don't need it in the MidiInputPort
391	result = entry;
392	}
393	}
394	midiMapsMutex.Unlock();
395	return result;
396	}
397
398	} // namespace LinuxSampler