drivers/midi/MidiInstrumentMapper.cpp

/***************************************************************************
 *                                                                         *
 *   Copyright (C) 2006 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/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;
    };

    // here we store all mappings (MIDI bank&prog) -> (Engine,File,Index)
    std::map<midi_prog_index_t,private_entry_t> midiMap;

    // for synchronization of midiMap
    Mutex midiMapMutex;


    void MidiInstrumentMapper::AddOrReplaceMapping(midi_prog_index_t Index, entry_t Entry, bool bInBackground) throw (Exception) {
        if (bInBackground) {
            dmsg(3,("MidiInstrumentMapper: updating mapping (%d,%d,%d) -> ('%s','%s',%d) with vol=%f, mode=%d in background\n",
                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) -> ('%s','%s',%d) with vol=%f, mode=%d\n",
                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)
            );
        }
        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 != VOID) {
                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;
        midiMapMutex.Lock();
        midiMap[Index] = privateEntry;
        midiMapMutex.Unlock();
        EngineFactory::Destroy(pEngine);
    }

    void MidiInstrumentMapper::RemoveMapping(midi_prog_index_t Index) {
        midiMapMutex.Lock();
        midiMap.erase(Index);
        midiMapMutex.Unlock();
    }

    void MidiInstrumentMapper::RemoveAllMappings() {
        midiMapMutex.Lock();
        midiMap.clear();
        midiMapMutex.Unlock();
    }

    std::map<midi_prog_index_t,MidiInstrumentMapper::entry_t> MidiInstrumentMapper::Mappings() {
        std::map<midi_prog_index_t,entry_t> result;
        // copy the internal map first
        midiMapMutex.Lock();
        for (std::map<midi_prog_index_t,private_entry_t>::iterator iter = midiMap.begin();
             iter != midiMap.end(); iter++)
        {
            entry_t entry;
            entry.EngineName      = iter->second.EngineName;
            entry.InstrumentFile  = iter->second.InstrumentFile;
            entry.InstrumentIndex = iter->second.InstrumentIndex;
            entry.Volume          = iter->second.Volume;
            entry.Name            = iter->second.Name;
            result[iter->first] = entry;
        }
        midiMapMutex.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
                RemoveMapping(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;
    }

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

} // namespace LinuxSampler
1	schoenebeck	947	/***************************************************************************
2			* *
3			* Copyright (C) 2006 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/Mutex.h"
24			#include "../../engines/EngineFactory.h"
25			#include "../../engines/Engine.h"
26
27			namespace LinuxSampler {
28
29			// same as entry_t but without 'LoadMode'
30			struct private_entry_t {
31			String EngineName;
32			String InstrumentFile;
33			uint InstrumentIndex;
34	schoenebeck	958	float Volume;
35	schoenebeck	947	String Name;
36			};
37
38			// here we store all mappings (MIDI bank&prog) -> (Engine,File,Index)
39			std::map<midi_prog_index_t,private_entry_t> midiMap;
40
41			// for synchronization of midiMap
42			Mutex midiMapMutex;
43
44
45			void MidiInstrumentMapper::AddOrReplaceMapping(midi_prog_index_t Index, entry_t Entry, bool bInBackground) throw (Exception) {
46			if (bInBackground) {
47			dmsg(3,("MidiInstrumentMapper: updating mapping (%d,%d,%d) -> ('%s','%s',%d) with vol=%f, mode=%d in background\n",
48			Index.midi_bank_msb,Index.midi_bank_lsb,Index.midi_prog,
49			Entry.EngineName.c_str(),Entry.InstrumentFile.c_str(),Entry.InstrumentIndex,
50			Entry.Volume,Entry.LoadMode)
51			);
52			} else {
53			dmsg(3,("MidiInstrumentMapper: updating mapping (%d,%d,%d) -> ('%s','%s',%d) with vol=%f, mode=%d\n",
54			Index.midi_bank_msb,Index.midi_bank_lsb,Index.midi_prog,
55			Entry.EngineName.c_str(),Entry.InstrumentFile.c_str(),Entry.InstrumentIndex,
56			Entry.Volume,Entry.LoadMode)
57			);
58			}
59			if (Entry.Volume < 0.0)
60			throw Exception("Volume may not be a negative value");
61			Engine* pEngine = EngineFactory::Create(Entry.EngineName);
62			if (!pEngine)
63			throw Exception("No such engine type '"+Entry.EngineName+"'");
64			Entry.EngineName = pEngine->EngineName(); // make sure to use the official engine name
65			if (pEngine->GetInstrumentManager()) {
66			InstrumentManager::instrument_id_t id;
67			id.FileName = Entry.InstrumentFile;
68			id.Index = Entry.InstrumentIndex;
69			if (Entry.LoadMode != VOID) {
70			if (bInBackground)
71			pEngine->GetInstrumentManager()->SetModeInBackground(id, static_cast<InstrumentManager::mode_t>(Entry.LoadMode));
72			else
73			pEngine->GetInstrumentManager()->SetMode(id, static_cast<InstrumentManager::mode_t>(Entry.LoadMode));
74			}
75			} else {
76			dmsg(1,("WARNING: no InstrumentManager for engine '%s'\n",Entry.EngineName.c_str()));
77			}
78			private_entry_t privateEntry;
79			privateEntry.EngineName = Entry.EngineName;
80			privateEntry.InstrumentFile = Entry.InstrumentFile;
81			privateEntry.InstrumentIndex = Entry.InstrumentIndex;
82	schoenebeck	958	privateEntry.Volume = Entry.Volume;
83	schoenebeck	947	privateEntry.Name = Entry.Name;
84			midiMapMutex.Lock();
85			midiMap[Index] = privateEntry;
86			midiMapMutex.Unlock();
87			EngineFactory::Destroy(pEngine);
88			}
89
90			void MidiInstrumentMapper::RemoveMapping(midi_prog_index_t Index) {
91			midiMapMutex.Lock();
92			midiMap.erase(Index);
93			midiMapMutex.Unlock();
94			}
95
96			void MidiInstrumentMapper::RemoveAllMappings() {
97			midiMapMutex.Lock();
98			midiMap.clear();
99			midiMapMutex.Unlock();
100			}
101
102			std::map<midi_prog_index_t,MidiInstrumentMapper::entry_t> MidiInstrumentMapper::Mappings() {
103			std::map<midi_prog_index_t,entry_t> result;
104			// copy the internal map first
105			midiMapMutex.Lock();
106			for (std::map<midi_prog_index_t,private_entry_t>::iterator iter = midiMap.begin();
107			iter != midiMap.end(); iter++)
108			{
109			entry_t entry;
110			entry.EngineName = iter->second.EngineName;
111			entry.InstrumentFile = iter->second.InstrumentFile;
112			entry.InstrumentIndex = iter->second.InstrumentIndex;
113	schoenebeck	958	entry.Volume = iter->second.Volume;
114	schoenebeck	947	entry.Name = iter->second.Name;
115			result[iter->first] = entry;
116			}
117			midiMapMutex.Unlock();
118	schoenebeck	958	// complete it with current LoadMode of each entry
119	schoenebeck	947	for (std::map<midi_prog_index_t,entry_t>::iterator iter = result.begin();
120			iter != result.end(); iter++)
121			{
122			entry_t& entry = iter->second;
123			Engine* pEngine = EngineFactory::Create(entry.EngineName);
124			if (!pEngine) { // invalid mapping
125			RemoveMapping(iter->first);
126			result.erase(iter);
127			continue;
128			}
129			InstrumentManager* pManager = pEngine->GetInstrumentManager();
130			if (pManager) { // engine provides an InstrumentManager
131			InstrumentManager::instrument_id_t id;
132			id.FileName = entry.InstrumentFile;
133			id.Index = entry.InstrumentIndex;
134			entry.LoadMode = static_cast<mode_t>(pManager->GetMode(id));
135			} else { // engine does not provide an InstrumentManager
136	schoenebeck	958	// use default value
137	schoenebeck	947	entry.LoadMode = ON_DEMAND;
138			}
139			EngineFactory::Destroy(pEngine);
140			}
141			return result;
142			}
143
144			optional<MidiInstrumentMapper::entry_t> MidiInstrumentMapper::GetEntry(midi_prog_index_t Index) {
145			optional<entry_t> result;
146			midiMapMutex.Lock();
147			std::map<midi_prog_index_t,private_entry_t>::iterator iter = midiMap.find(Index);
148			if (iter != midiMap.end()) {
149			entry_t entry;
150			entry.EngineName = iter->second.EngineName;
151			entry.InstrumentFile = iter->second.InstrumentFile;
152			entry.InstrumentIndex = iter->second.InstrumentIndex;
153	schoenebeck	958	entry.Volume = iter->second.Volume;
154	schoenebeck	947	//TODO: for now we skip the LoadMode and Name entry here, since we don't need it in the MidiInputPort
155			result = entry;
156			}
157			midiMapMutex.Unlock();
158			return result;
159			}
160
161			} // namespace LinuxSampler