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;
        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));
            }
            pEngine->GetInstrumentManager()->SetVolume(id, Entry.Volume);
        } 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.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.Name            = iter->second.Name;
            result[iter->first] = entry;
        }
        midiMapMutex.Unlock();
        // complete it with current LoadMode & Volume 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));
                entry.Volume   = pManager->GetVolume(id); 
            } else { // engine does not provide an InstrumentManager
                // use default values
                entry.LoadMode = ON_DEMAND;
                entry.Volume   = 1.0f;
            }
            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;
            Engine* pEngine = EngineFactory::Create(iter->second.EngineName);
            // try to retrieve volume from InstrumentManager entry
            if (pEngine && pEngine->GetInstrumentManager()) {
                InstrumentManager::instrument_id_t id;
                id.FileName = iter->second.InstrumentFile;
                id.Index    = iter->second.InstrumentIndex;
                entry.Volume = pEngine->GetInstrumentManager()->GetVolume(id);
            } else entry.Volume = 1.0f; // default value
            if (pEngine) EngineFactory::Destroy(pEngine);
            //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	String Name;
35	};
36
37	// here we store all mappings (MIDI bank&prog) -> (Engine,File,Index)
38	std::map<midi_prog_index_t,private_entry_t> midiMap;
39
40	// for synchronization of midiMap
41	Mutex midiMapMutex;
42
43
44	void MidiInstrumentMapper::AddOrReplaceMapping(midi_prog_index_t Index, entry_t Entry, bool bInBackground) throw (Exception) {
45	if (bInBackground) {
46	dmsg(3,("MidiInstrumentMapper: updating mapping (%d,%d,%d) -> ('%s','%s',%d) with vol=%f, mode=%d in background\n",
47	Index.midi_bank_msb,Index.midi_bank_lsb,Index.midi_prog,
48	Entry.EngineName.c_str(),Entry.InstrumentFile.c_str(),Entry.InstrumentIndex,
49	Entry.Volume,Entry.LoadMode)
50	);
51	} else {
52	dmsg(3,("MidiInstrumentMapper: updating mapping (%d,%d,%d) -> ('%s','%s',%d) with vol=%f, mode=%d\n",
53	Index.midi_bank_msb,Index.midi_bank_lsb,Index.midi_prog,
54	Entry.EngineName.c_str(),Entry.InstrumentFile.c_str(),Entry.InstrumentIndex,
55	Entry.Volume,Entry.LoadMode)
56	);
57	}
58	if (Entry.Volume < 0.0)
59	throw Exception("Volume may not be a negative value");
60	Engine* pEngine = EngineFactory::Create(Entry.EngineName);
61	if (!pEngine)
62	throw Exception("No such engine type '"+Entry.EngineName+"'");
63	Entry.EngineName = pEngine->EngineName(); // make sure to use the official engine name
64	if (pEngine->GetInstrumentManager()) {
65	InstrumentManager::instrument_id_t id;
66	id.FileName = Entry.InstrumentFile;
67	id.Index = Entry.InstrumentIndex;
68	if (Entry.LoadMode != VOID) {
69	if (bInBackground)
70	pEngine->GetInstrumentManager()->SetModeInBackground(id, static_cast<InstrumentManager::mode_t>(Entry.LoadMode));
71	else
72	pEngine->GetInstrumentManager()->SetMode(id, static_cast<InstrumentManager::mode_t>(Entry.LoadMode));
73	}
74	pEngine->GetInstrumentManager()->SetVolume(id, Entry.Volume);
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	privateEntry.Name = Entry.Name;
83	midiMapMutex.Lock();
84	midiMap[Index] = privateEntry;
85	midiMapMutex.Unlock();
86	EngineFactory::Destroy(pEngine);
87	}
88
89	void MidiInstrumentMapper::RemoveMapping(midi_prog_index_t Index) {
90	midiMapMutex.Lock();
91	midiMap.erase(Index);
92	midiMapMutex.Unlock();
93	}
94
95	void MidiInstrumentMapper::RemoveAllMappings() {
96	midiMapMutex.Lock();
97	midiMap.clear();
98	midiMapMutex.Unlock();
99	}
100
101	std::map<midi_prog_index_t,MidiInstrumentMapper::entry_t> MidiInstrumentMapper::Mappings() {
102	std::map<midi_prog_index_t,entry_t> result;
103	// copy the internal map first
104	midiMapMutex.Lock();
105	for (std::map<midi_prog_index_t,private_entry_t>::iterator iter = midiMap.begin();
106	iter != midiMap.end(); iter++)
107	{
108	entry_t entry;
109	entry.EngineName = iter->second.EngineName;
110	entry.InstrumentFile = iter->second.InstrumentFile;
111	entry.InstrumentIndex = iter->second.InstrumentIndex;
112	entry.Name = iter->second.Name;
113	result[iter->first] = entry;
114	}
115	midiMapMutex.Unlock();
116	// complete it with current LoadMode & Volume of each entry
117	for (std::map<midi_prog_index_t,entry_t>::iterator iter = result.begin();
118	iter != result.end(); iter++)
119	{
120	entry_t& entry = iter->second;
121	Engine* pEngine = EngineFactory::Create(entry.EngineName);
122	if (!pEngine) { // invalid mapping
123	RemoveMapping(iter->first);
124	result.erase(iter);
125	continue;
126	}
127	InstrumentManager* pManager = pEngine->GetInstrumentManager();
128	if (pManager) { // engine provides an InstrumentManager
129	InstrumentManager::instrument_id_t id;
130	id.FileName = entry.InstrumentFile;
131	id.Index = entry.InstrumentIndex;
132	entry.LoadMode = static_cast<mode_t>(pManager->GetMode(id));
133	entry.Volume = pManager->GetVolume(id);
134	} else { // engine does not provide an InstrumentManager
135	// use default values
136	entry.LoadMode = ON_DEMAND;
137	entry.Volume = 1.0f;
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	Engine* pEngine = EngineFactory::Create(iter->second.EngineName);
154	// try to retrieve volume from InstrumentManager entry
155	if (pEngine && pEngine->GetInstrumentManager()) {
156	InstrumentManager::instrument_id_t id;
157	id.FileName = iter->second.InstrumentFile;
158	id.Index = iter->second.InstrumentIndex;
159	entry.Volume = pEngine->GetInstrumentManager()->GetVolume(id);
160	} else entry.Volume = 1.0f; // default value
161	if (pEngine) EngineFactory::Destroy(pEngine);
162	//TODO: for now we skip the LoadMode and Name entry here, since we don't need it in the MidiInputPort
163	result = entry;
164	}
165	midiMapMutex.Unlock();
166	return result;
167	}
168
169	} // namespace LinuxSampler