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.InstrumentFile.size())
            throw Exception("No instrument file name given");
        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	/***************************************************************************
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	float Volume;
35	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.InstrumentFile.size())
60	throw Exception("No instrument file name given");
61	if (Entry.Volume < 0.0)
62	throw Exception("Volume may not be a negative value");
63	Engine* pEngine = EngineFactory::Create(Entry.EngineName);
64	if (!pEngine)
65	throw Exception("No such engine type '"+Entry.EngineName+"'");
66	Entry.EngineName = pEngine->EngineName(); // make sure to use the official engine name
67	if (pEngine->GetInstrumentManager()) {
68	InstrumentManager::instrument_id_t id;
69	id.FileName = Entry.InstrumentFile;
70	id.Index = Entry.InstrumentIndex;
71	if (Entry.LoadMode != VOID) {
72	if (bInBackground)
73	pEngine->GetInstrumentManager()->SetModeInBackground(id, static_cast<InstrumentManager::mode_t>(Entry.LoadMode));
74	else
75	pEngine->GetInstrumentManager()->SetMode(id, static_cast<InstrumentManager::mode_t>(Entry.LoadMode));
76	}
77	} else {
78	dmsg(1,("WARNING: no InstrumentManager for engine '%s'\n",Entry.EngineName.c_str()));
79	}
80	private_entry_t privateEntry;
81	privateEntry.EngineName = Entry.EngineName;
82	privateEntry.InstrumentFile = Entry.InstrumentFile;
83	privateEntry.InstrumentIndex = Entry.InstrumentIndex;
84	privateEntry.Volume = Entry.Volume;
85	privateEntry.Name = Entry.Name;
86	midiMapMutex.Lock();
87	midiMap[Index] = privateEntry;
88	midiMapMutex.Unlock();
89	EngineFactory::Destroy(pEngine);
90	}
91
92	void MidiInstrumentMapper::RemoveMapping(midi_prog_index_t Index) {
93	midiMapMutex.Lock();
94	midiMap.erase(Index);
95	midiMapMutex.Unlock();
96	}
97
98	void MidiInstrumentMapper::RemoveAllMappings() {
99	midiMapMutex.Lock();
100	midiMap.clear();
101	midiMapMutex.Unlock();
102	}
103
104	std::map<midi_prog_index_t,MidiInstrumentMapper::entry_t> MidiInstrumentMapper::Mappings() {
105	std::map<midi_prog_index_t,entry_t> result;
106	// copy the internal map first
107	midiMapMutex.Lock();
108	for (std::map<midi_prog_index_t,private_entry_t>::iterator iter = midiMap.begin();
109	iter != midiMap.end(); iter++)
110	{
111	entry_t entry;
112	entry.EngineName = iter->second.EngineName;
113	entry.InstrumentFile = iter->second.InstrumentFile;
114	entry.InstrumentIndex = iter->second.InstrumentIndex;
115	entry.Volume = iter->second.Volume;
116	entry.Name = iter->second.Name;
117	result[iter->first] = entry;
118	}
119	midiMapMutex.Unlock();
120	// complete it with current LoadMode of each entry
121	for (std::map<midi_prog_index_t,entry_t>::iterator iter = result.begin();
122	iter != result.end(); iter++)
123	{
124	entry_t& entry = iter->second;
125	Engine* pEngine = EngineFactory::Create(entry.EngineName);
126	if (!pEngine) { // invalid mapping
127	RemoveMapping(iter->first);
128	result.erase(iter);
129	continue;
130	}
131	InstrumentManager* pManager = pEngine->GetInstrumentManager();
132	if (pManager) { // engine provides an InstrumentManager
133	InstrumentManager::instrument_id_t id;
134	id.FileName = entry.InstrumentFile;
135	id.Index = entry.InstrumentIndex;
136	entry.LoadMode = static_cast<mode_t>(pManager->GetMode(id));
137	} else { // engine does not provide an InstrumentManager
138	// use default value
139	entry.LoadMode = ON_DEMAND;
140	}
141	EngineFactory::Destroy(pEngine);
142	}
143	return result;
144	}
145
146	optional<MidiInstrumentMapper::entry_t> MidiInstrumentMapper::GetEntry(midi_prog_index_t Index) {
147	optional<entry_t> result;
148	midiMapMutex.Lock();
149	std::map<midi_prog_index_t,private_entry_t>::iterator iter = midiMap.find(Index);
150	if (iter != midiMap.end()) {
151	entry_t entry;
152	entry.EngineName = iter->second.EngineName;
153	entry.InstrumentFile = iter->second.InstrumentFile;
154	entry.InstrumentIndex = iter->second.InstrumentIndex;
155	entry.Volume = iter->second.Volume;
156	//TODO: for now we skip the LoadMode and Name entry here, since we don't need it in the MidiInputPort
157	result = entry;
158	}
159	midiMapMutex.Unlock();
160	return result;
161	}
162
163	} // namespace LinuxSampler