drivers/midi/MidiInputPort.cpp

/***************************************************************************
 *                                                                         *
 *   LinuxSampler - modular, streaming capable sampler                     *
 *                                                                         *
 *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
 *   Copyright (C) 2005, 2006 Christian Schoenebeck                        *
 *                                                                         *
 *   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 "MidiInputPort.h"

#include "../../Sampler.h"
#include "../../engines/EngineFactory.h"

namespace LinuxSampler {

// *************** ParameterName ***************
// *

    MidiInputPort::ParameterName::ParameterName(MidiInputPort* pPort) : DeviceRuntimeParameterString("Port " + ToString(pPort->GetPortNumber())) {
        this->pPort = pPort;
    }

    MidiInputPort::ParameterName::ParameterName(MidiInputPort* pPort, String val) : DeviceRuntimeParameterString(val) {
        this->pPort = pPort;
    }

    String MidiInputPort::ParameterName::Description() {
        return "Name for this port";
    }

    bool MidiInputPort::ParameterName::Fix() {
        return false;
    }

    std::vector<String> MidiInputPort::ParameterName::PossibilitiesAsString() {
        return std::vector<String>();
    }

    void MidiInputPort::ParameterName::OnSetValue(String s) throw (Exception) {
        return; /* FIXME: Nothing to do here */
    }


// *************** MidiInputPort ***************
// *

    MidiInputPort::~MidiInputPort() {
        std::map<String,DeviceRuntimeParameter*>::iterator iter = Parameters.begin();
        while (iter != Parameters.end()) {
            delete iter->second;
            iter++;
        }
        Parameters.clear();
    }

    MidiInputPort::MidiInputPort(MidiInputDevice* pDevice, int portNumber)
        : MidiChannelMapReader(MidiChannelMap),
          SysexListenersReader(SysexListeners) {
        this->pDevice = pDevice;
        this->portNumber = portNumber;
        Parameters["NAME"] = new ParameterName(this);
        pPreviousProgramChangeEngineChannel = NULL;
    }

    MidiInputDevice* MidiInputPort::GetDevice() {
        return pDevice;
    }

    uint MidiInputPort::GetPortNumber() {
        return portNumber;
    }

    std::map<String,DeviceRuntimeParameter*> MidiInputPort::PortParameters() {
        return Parameters;
    }

    void MidiInputPort::DispatchNoteOn(uint8_t Key, uint8_t Velocity, uint MidiChannel) {
        if (Key > 127 || Velocity > 127 || MidiChannel > 16) return;
        const MidiChannelMap_t& midiChannelMap = MidiChannelMapReader.Lock();
        // dispatch event for engines listening to the same MIDI channel
        {
            std::set<EngineChannel*>::iterator engineiter = midiChannelMap[MidiChannel].begin();
            std::set<EngineChannel*>::iterator end        = midiChannelMap[MidiChannel].end();
            for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOn(Key, Velocity);
        }
        // dispatch event for engines listening to ALL MIDI channels
        {
            std::set<EngineChannel*>::iterator engineiter = midiChannelMap[midi_chan_all].begin();
            std::set<EngineChannel*>::iterator end        = midiChannelMap[midi_chan_all].end();
            for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOn(Key, Velocity);
        }
        MidiChannelMapReader.Unlock();
    }

    void MidiInputPort::DispatchNoteOn(uint8_t Key, uint8_t Velocity, uint MidiChannel, int32_t FragmentPos) {
        if (Key > 127 || Velocity > 127 || MidiChannel > 16) return;
        const MidiChannelMap_t& midiChannelMap = MidiChannelMapReader.Lock();
        // dispatch event for engines listening to the same MIDI channel
        {
            std::set<EngineChannel*>::iterator engineiter = midiChannelMap[MidiChannel].begin();
            std::set<EngineChannel*>::iterator end        = midiChannelMap[MidiChannel].end();
            for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOn(Key, Velocity, FragmentPos);
        }
        // dispatch event for engines listening to ALL MIDI channels
        {
            std::set<EngineChannel*>::iterator engineiter = midiChannelMap[midi_chan_all].begin();
            std::set<EngineChannel*>::iterator end        = midiChannelMap[midi_chan_all].end();
            for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOn(Key, Velocity, FragmentPos);
        }
        MidiChannelMapReader.Unlock();
    }

    void MidiInputPort::DispatchNoteOff(uint8_t Key, uint8_t Velocity, uint MidiChannel) {
        if (Key > 127 || Velocity > 127 || MidiChannel > 16) return;
        const MidiChannelMap_t& midiChannelMap = MidiChannelMapReader.Lock();
        // dispatch event for engines listening to the same MIDI channel
        {
            std::set<EngineChannel*>::iterator engineiter = midiChannelMap[MidiChannel].begin();
            std::set<EngineChannel*>::iterator end        = midiChannelMap[MidiChannel].end();
            for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOff(Key, Velocity);
        }
        // dispatch event for engines listening to ALL MIDI channels
        {
            std::set<EngineChannel*>::iterator engineiter = midiChannelMap[midi_chan_all].begin();
            std::set<EngineChannel*>::iterator end        = midiChannelMap[midi_chan_all].end();
            for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOff(Key, Velocity);
        }
        MidiChannelMapReader.Unlock();
    }

    void MidiInputPort::DispatchNoteOff(uint8_t Key, uint8_t Velocity, uint MidiChannel, int32_t FragmentPos) {
        if (Key > 127 || Velocity > 127 || MidiChannel > 16) return;
        const MidiChannelMap_t& midiChannelMap = MidiChannelMapReader.Lock();
        // dispatch event for engines listening to the same MIDI channel
        {
            std::set<EngineChannel*>::iterator engineiter = midiChannelMap[MidiChannel].begin();
            std::set<EngineChannel*>::iterator end        = midiChannelMap[MidiChannel].end();
            for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOff(Key, Velocity, FragmentPos);
        }
        // dispatch event for engines listening to ALL MIDI channels
        {
            std::set<EngineChannel*>::iterator engineiter = midiChannelMap[midi_chan_all].begin();
            std::set<EngineChannel*>::iterator end        = midiChannelMap[midi_chan_all].end();
            for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOff(Key, Velocity, FragmentPos);
        }
        MidiChannelMapReader.Unlock();
    }

    void MidiInputPort::DispatchPitchbend(int Pitch, uint MidiChannel) {
        if (Pitch < -8192 || Pitch > 8191 || MidiChannel > 16) return;
        const MidiChannelMap_t& midiChannelMap = MidiChannelMapReader.Lock();
        // dispatch event for engines listening to the same MIDI channel
        {
            std::set<EngineChannel*>::iterator engineiter = midiChannelMap[MidiChannel].begin();
            std::set<EngineChannel*>::iterator end        = midiChannelMap[MidiChannel].end();
            for (; engineiter != end; engineiter++) (*engineiter)->SendPitchbend(Pitch);
        }
        // dispatch event for engines listening to ALL MIDI channels
        {
            std::set<EngineChannel*>::iterator engineiter = midiChannelMap[midi_chan_all].begin();
            std::set<EngineChannel*>::iterator end        = midiChannelMap[midi_chan_all].end();
            for (; engineiter != end; engineiter++) (*engineiter)->SendPitchbend(Pitch);
        }
        MidiChannelMapReader.Unlock();
    }

    void MidiInputPort::DispatchPitchbend(int Pitch, uint MidiChannel, int32_t FragmentPos) {
        if (Pitch < -8192 || Pitch > 8191 || MidiChannel > 16) return;
        const MidiChannelMap_t& midiChannelMap = MidiChannelMapReader.Lock();
        // dispatch event for engines listening to the same MIDI channel
        {
            std::set<EngineChannel*>::iterator engineiter = midiChannelMap[MidiChannel].begin();
            std::set<EngineChannel*>::iterator end        = midiChannelMap[MidiChannel].end();
            for (; engineiter != end; engineiter++) (*engineiter)->SendPitchbend(Pitch, FragmentPos);
        }
        // dispatch event for engines listening to ALL MIDI channels
        {
            std::set<EngineChannel*>::iterator engineiter = midiChannelMap[midi_chan_all].begin();
            std::set<EngineChannel*>::iterator end        = midiChannelMap[midi_chan_all].end();
            for (; engineiter != end; engineiter++) (*engineiter)->SendPitchbend(Pitch, FragmentPos);
        }
        MidiChannelMapReader.Unlock();
    }

    void MidiInputPort::DispatchControlChange(uint8_t Controller, uint8_t Value, uint MidiChannel) {
        if (Controller > 128 || Value > 127 || MidiChannel > 16) return;
        const MidiChannelMap_t& midiChannelMap = MidiChannelMapReader.Lock();
        // dispatch event for engines listening to the same MIDI channel
        {
            std::set<EngineChannel*>::iterator engineiter = midiChannelMap[MidiChannel].begin();
            std::set<EngineChannel*>::iterator end        = midiChannelMap[MidiChannel].end();
            for (; engineiter != end; engineiter++) (*engineiter)->SendControlChange(Controller, Value);
        }
        // dispatch event for engines listening to ALL MIDI channels
        {
            std::set<EngineChannel*>::iterator engineiter = midiChannelMap[midi_chan_all].begin();
            std::set<EngineChannel*>::iterator end        = midiChannelMap[midi_chan_all].end();
            for (; engineiter != end; engineiter++) (*engineiter)->SendControlChange(Controller, Value);
        }
        MidiChannelMapReader.Unlock();
    }

    void MidiInputPort::DispatchControlChange(uint8_t Controller, uint8_t Value, uint MidiChannel, int32_t FragmentPos) {
        if (Controller > 128 || Value > 127 || MidiChannel > 16) return;
        const MidiChannelMap_t& midiChannelMap = MidiChannelMapReader.Lock();
        // dispatch event for engines listening to the same MIDI channel
        {
            std::set<EngineChannel*>::iterator engineiter = midiChannelMap[MidiChannel].begin();
            std::set<EngineChannel*>::iterator end        = midiChannelMap[MidiChannel].end();
            for (; engineiter != end; engineiter++) (*engineiter)->SendControlChange(Controller, Value, FragmentPos);
        }
        // dispatch event for engines listening to ALL MIDI channels
        {
            std::set<EngineChannel*>::iterator engineiter = midiChannelMap[midi_chan_all].begin();
            std::set<EngineChannel*>::iterator end        = midiChannelMap[midi_chan_all].end();
            for (; engineiter != end; engineiter++) (*engineiter)->SendControlChange(Controller, Value, FragmentPos);
        }
        MidiChannelMapReader.Unlock();
    }

    void MidiInputPort::DispatchSysex(void* pData, uint Size) {
        const std::set<Engine*> allEngines = SysexListenersReader.Lock();
        // dispatch event to all engine instances
        std::set<Engine*>::iterator engineiter = allEngines.begin();
        std::set<Engine*>::iterator end        = allEngines.end();
        for (; engineiter != end; engineiter++) (*engineiter)->SendSysex(pData, Size);
        SysexListenersReader.Unlock();
    }

    void MidiInputPort::DispatchProgramChange(uint8_t Program, uint MidiChannel) {
        if (Program > 127 || MidiChannel > 16) return;
        if (!pDevice || !pDevice->pSampler) {
            std::cerr << "MidiInputPort: ERROR, no sampler instance to handle program change."
                      << "This is a bug, please report it!\n" << std::flush;
            return;
        }

        Sampler*        pSampler        = (Sampler*) pDevice->pSampler;
        SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(Program);
        if (!pSamplerChannel) return;

        EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
        if (!pEngineChannel) return;

        // disconnect from the engine channel which was connected by the last PC event
        if (pPreviousProgramChangeEngineChannel)
            Disconnect(pPreviousProgramChangeEngineChannel);

        // now connect to the new engine channel and remember it
        try {
            Connect(pEngineChannel, (midi_chan_t) MidiChannel);
            pPreviousProgramChangeEngineChannel = pEngineChannel;
        }
        catch (...) { /* NOOP */ }
    }

    void MidiInputPort::Connect(EngineChannel* pEngineChannel, midi_chan_t MidiChannel) {
        if (MidiChannel < 0 || MidiChannel > 16)
            throw MidiInputException("MIDI channel index out of bounds");

        // first check if desired connection is already established
        MidiChannelMapMutex.Lock();
        MidiChannelMap_t& midiChannelMap = MidiChannelMap.GetConfigForUpdate();
        bool bAlreadyDone = midiChannelMap[MidiChannel].count(pEngineChannel);
        MidiChannelMapMutex.Unlock();
        if (bAlreadyDone) return;

        // remove all other connections of that engine channel (if any)
        Disconnect(pEngineChannel);

        // register engine channel on the desired MIDI channel
        MidiChannelMapMutex.Lock();
        MidiChannelMap.GetConfigForUpdate()[MidiChannel].insert(pEngineChannel);
        MidiChannelMap.SwitchConfig()[MidiChannel].insert(pEngineChannel);
        MidiChannelMapMutex.Unlock();

        // inform engine channel about this connection
        pEngineChannel->Connect(this, MidiChannel);

        // mark engine channel as changed
        pEngineChannel->StatusChanged(true);
    }

    void MidiInputPort::Disconnect(EngineChannel* pEngineChannel) {
        if (!pEngineChannel) return;

        bool bChannelFound = false;

        // unregister engine channel from all MIDI channels
        MidiChannelMapMutex.Lock();
        try {
            {
                MidiChannelMap_t& midiChannelMap = MidiChannelMap.GetConfigForUpdate();
                for (int i = 0; i <= 16; i++) {
                    bChannelFound |= midiChannelMap[i].count(pEngineChannel);
                    midiChannelMap[i].erase(pEngineChannel);
                }
            }
            // do the same update again, after switching to the other config
            {
                MidiChannelMap_t& midiChannelMap = MidiChannelMap.SwitchConfig();
                for (int i = 0; i <= 16; i++) {
                    bChannelFound |= midiChannelMap[i].count(pEngineChannel);
                    midiChannelMap[i].erase(pEngineChannel);
                }
            }
        }
        catch(...) { /* NOOP */ }
        MidiChannelMapMutex.Unlock();

        // inform engine channel about the disconnection (if there is one)
        if (bChannelFound) pEngineChannel->DisconnectMidiInputPort();

        // mark engine channel as changed
        pEngineChannel->StatusChanged(true);
    }

    SynchronizedConfig<std::set<LinuxSampler::Engine*> > MidiInputPort::SysexListeners;

    void MidiInputPort::AddSysexListener(Engine* engine) {
        std::pair<std::set<Engine*>::iterator, bool> p = SysexListeners.GetConfigForUpdate().insert(engine);
        if (p.second) SysexListeners.SwitchConfig().insert(engine);
    }

    bool MidiInputPort::RemoveSysexListener(Engine* engine) {
        int count = SysexListeners.GetConfigForUpdate().erase(engine);
        if (count) SysexListeners.SwitchConfig().erase(engine);
        return count;
    }

} // namespace LinuxSampler
1	/***************************************************************************
2	* *
3	* LinuxSampler - modular, streaming capable sampler *
4	* *
5	* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6	* Copyright (C) 2005, 2006 Christian Schoenebeck *
7	* *
8	* This program is free software; you can redistribute it and/or modify *
9	* it under the terms of the GNU General Public License as published by *
10	* the Free Software Foundation; either version 2 of the License, or *
11	* (at your option) any later version. *
12	* *
13	* This program is distributed in the hope that it will be useful, *
14	* but WITHOUT ANY WARRANTY; without even the implied warranty of *
15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16	* GNU General Public License for more details. *
17	* *
18	* You should have received a copy of the GNU General Public License *
19	* along with this program; if not, write to the Free Software *
20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
21	* MA 02111-1307 USA *
22	***************************************************************************/
23
24	#include "MidiInputPort.h"
25
26	#include "../../Sampler.h"
27	#include "../../engines/EngineFactory.h"
28
29	namespace LinuxSampler {
30
31	// ************* ParameterName *************
32	// *
33
34	MidiInputPort::ParameterName::ParameterName(MidiInputPort* pPort) : DeviceRuntimeParameterString("Port " + ToString(pPort->GetPortNumber())) {
35	this->pPort = pPort;
36	}
37
38	MidiInputPort::ParameterName::ParameterName(MidiInputPort* pPort, String val) : DeviceRuntimeParameterString(val) {
39	this->pPort = pPort;
40	}
41
42	String MidiInputPort::ParameterName::Description() {
43	return "Name for this port";
44	}
45
46	bool MidiInputPort::ParameterName::Fix() {
47	return false;
48	}
49
50	std::vector<String> MidiInputPort::ParameterName::PossibilitiesAsString() {
51	return std::vector<String>();
52	}
53
54	void MidiInputPort::ParameterName::OnSetValue(String s) throw (Exception) {
55	return; /* FIXME: Nothing to do here */
56	}
57
58
59
60	// ************* MidiInputPort *************
61	// *
62
63	MidiInputPort::~MidiInputPort() {
64	std::map<String,DeviceRuntimeParameter*>::iterator iter = Parameters.begin();
65	while (iter != Parameters.end()) {
66	delete iter->second;
67	iter++;
68	}
69	Parameters.clear();
70	}
71
72	MidiInputPort::MidiInputPort(MidiInputDevice* pDevice, int portNumber)
73	: MidiChannelMapReader(MidiChannelMap),
74	SysexListenersReader(SysexListeners) {
75	this->pDevice = pDevice;
76	this->portNumber = portNumber;
77	Parameters["NAME"] = new ParameterName(this);
78	pPreviousProgramChangeEngineChannel = NULL;
79	}
80
81	MidiInputDevice* MidiInputPort::GetDevice() {
82	return pDevice;
83	}
84
85	uint MidiInputPort::GetPortNumber() {
86	return portNumber;
87	}
88
89	std::map<String,DeviceRuntimeParameter*> MidiInputPort::PortParameters() {
90	return Parameters;
91	}
92
93	void MidiInputPort::DispatchNoteOn(uint8_t Key, uint8_t Velocity, uint MidiChannel) {
94	if (Key > 127 \|\| Velocity > 127 \|\| MidiChannel > 16) return;
95	const MidiChannelMap_t& midiChannelMap = MidiChannelMapReader.Lock();
96	// dispatch event for engines listening to the same MIDI channel
97	{
98	std::set<EngineChannel*>::iterator engineiter = midiChannelMap[MidiChannel].begin();
99	std::set<EngineChannel*>::iterator end = midiChannelMap[MidiChannel].end();
100	for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOn(Key, Velocity);
101	}
102	// dispatch event for engines listening to ALL MIDI channels
103	{
104	std::set<EngineChannel*>::iterator engineiter = midiChannelMap[midi_chan_all].begin();
105	std::set<EngineChannel*>::iterator end = midiChannelMap[midi_chan_all].end();
106	for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOn(Key, Velocity);
107	}
108	MidiChannelMapReader.Unlock();
109	}
110
111	void MidiInputPort::DispatchNoteOn(uint8_t Key, uint8_t Velocity, uint MidiChannel, int32_t FragmentPos) {
112	if (Key > 127 \|\| Velocity > 127 \|\| MidiChannel > 16) return;
113	const MidiChannelMap_t& midiChannelMap = MidiChannelMapReader.Lock();
114	// dispatch event for engines listening to the same MIDI channel
115	{
116	std::set<EngineChannel*>::iterator engineiter = midiChannelMap[MidiChannel].begin();
117	std::set<EngineChannel*>::iterator end = midiChannelMap[MidiChannel].end();
118	for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOn(Key, Velocity, FragmentPos);
119	}
120	// dispatch event for engines listening to ALL MIDI channels
121	{
122	std::set<EngineChannel*>::iterator engineiter = midiChannelMap[midi_chan_all].begin();
123	std::set<EngineChannel*>::iterator end = midiChannelMap[midi_chan_all].end();
124	for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOn(Key, Velocity, FragmentPos);
125	}
126	MidiChannelMapReader.Unlock();
127	}
128
129	void MidiInputPort::DispatchNoteOff(uint8_t Key, uint8_t Velocity, uint MidiChannel) {
130	if (Key > 127 \|\| Velocity > 127 \|\| MidiChannel > 16) return;
131	const MidiChannelMap_t& midiChannelMap = MidiChannelMapReader.Lock();
132	// dispatch event for engines listening to the same MIDI channel
133	{
134	std::set<EngineChannel*>::iterator engineiter = midiChannelMap[MidiChannel].begin();
135	std::set<EngineChannel*>::iterator end = midiChannelMap[MidiChannel].end();
136	for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOff(Key, Velocity);
137	}
138	// dispatch event for engines listening to ALL MIDI channels
139	{
140	std::set<EngineChannel*>::iterator engineiter = midiChannelMap[midi_chan_all].begin();
141	std::set<EngineChannel*>::iterator end = midiChannelMap[midi_chan_all].end();
142	for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOff(Key, Velocity);
143	}
144	MidiChannelMapReader.Unlock();
145	}
146
147	void MidiInputPort::DispatchNoteOff(uint8_t Key, uint8_t Velocity, uint MidiChannel, int32_t FragmentPos) {
148	if (Key > 127 \|\| Velocity > 127 \|\| MidiChannel > 16) return;
149	const MidiChannelMap_t& midiChannelMap = MidiChannelMapReader.Lock();
150	// dispatch event for engines listening to the same MIDI channel
151	{
152	std::set<EngineChannel*>::iterator engineiter = midiChannelMap[MidiChannel].begin();
153	std::set<EngineChannel*>::iterator end = midiChannelMap[MidiChannel].end();
154	for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOff(Key, Velocity, FragmentPos);
155	}
156	// dispatch event for engines listening to ALL MIDI channels
157	{
158	std::set<EngineChannel*>::iterator engineiter = midiChannelMap[midi_chan_all].begin();
159	std::set<EngineChannel*>::iterator end = midiChannelMap[midi_chan_all].end();
160	for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOff(Key, Velocity, FragmentPos);
161	}
162	MidiChannelMapReader.Unlock();
163	}
164
165	void MidiInputPort::DispatchPitchbend(int Pitch, uint MidiChannel) {
166	if (Pitch < -8192 \|\| Pitch > 8191 \|\| MidiChannel > 16) return;
167	const MidiChannelMap_t& midiChannelMap = MidiChannelMapReader.Lock();
168	// dispatch event for engines listening to the same MIDI channel
169	{
170	std::set<EngineChannel*>::iterator engineiter = midiChannelMap[MidiChannel].begin();
171	std::set<EngineChannel*>::iterator end = midiChannelMap[MidiChannel].end();
172	for (; engineiter != end; engineiter++) (*engineiter)->SendPitchbend(Pitch);
173	}
174	// dispatch event for engines listening to ALL MIDI channels
175	{
176	std::set<EngineChannel*>::iterator engineiter = midiChannelMap[midi_chan_all].begin();
177	std::set<EngineChannel*>::iterator end = midiChannelMap[midi_chan_all].end();
178	for (; engineiter != end; engineiter++) (*engineiter)->SendPitchbend(Pitch);
179	}
180	MidiChannelMapReader.Unlock();
181	}
182
183	void MidiInputPort::DispatchPitchbend(int Pitch, uint MidiChannel, int32_t FragmentPos) {
184	if (Pitch < -8192 \|\| Pitch > 8191 \|\| MidiChannel > 16) return;
185	const MidiChannelMap_t& midiChannelMap = MidiChannelMapReader.Lock();
186	// dispatch event for engines listening to the same MIDI channel
187	{
188	std::set<EngineChannel*>::iterator engineiter = midiChannelMap[MidiChannel].begin();
189	std::set<EngineChannel*>::iterator end = midiChannelMap[MidiChannel].end();
190	for (; engineiter != end; engineiter++) (*engineiter)->SendPitchbend(Pitch, FragmentPos);
191	}
192	// dispatch event for engines listening to ALL MIDI channels
193	{
194	std::set<EngineChannel*>::iterator engineiter = midiChannelMap[midi_chan_all].begin();
195	std::set<EngineChannel*>::iterator end = midiChannelMap[midi_chan_all].end();
196	for (; engineiter != end; engineiter++) (*engineiter)->SendPitchbend(Pitch, FragmentPos);
197	}
198	MidiChannelMapReader.Unlock();
199	}
200
201	void MidiInputPort::DispatchControlChange(uint8_t Controller, uint8_t Value, uint MidiChannel) {
202	if (Controller > 128 \|\| Value > 127 \|\| MidiChannel > 16) return;
203	const MidiChannelMap_t& midiChannelMap = MidiChannelMapReader.Lock();
204	// dispatch event for engines listening to the same MIDI channel
205	{
206	std::set<EngineChannel*>::iterator engineiter = midiChannelMap[MidiChannel].begin();
207	std::set<EngineChannel*>::iterator end = midiChannelMap[MidiChannel].end();
208	for (; engineiter != end; engineiter++) (*engineiter)->SendControlChange(Controller, Value);
209	}
210	// dispatch event for engines listening to ALL MIDI channels
211	{
212	std::set<EngineChannel*>::iterator engineiter = midiChannelMap[midi_chan_all].begin();
213	std::set<EngineChannel*>::iterator end = midiChannelMap[midi_chan_all].end();
214	for (; engineiter != end; engineiter++) (*engineiter)->SendControlChange(Controller, Value);
215	}
216	MidiChannelMapReader.Unlock();
217	}
218
219	void MidiInputPort::DispatchControlChange(uint8_t Controller, uint8_t Value, uint MidiChannel, int32_t FragmentPos) {
220	if (Controller > 128 \|\| Value > 127 \|\| MidiChannel > 16) return;
221	const MidiChannelMap_t& midiChannelMap = MidiChannelMapReader.Lock();
222	// dispatch event for engines listening to the same MIDI channel
223	{
224	std::set<EngineChannel*>::iterator engineiter = midiChannelMap[MidiChannel].begin();
225	std::set<EngineChannel*>::iterator end = midiChannelMap[MidiChannel].end();
226	for (; engineiter != end; engineiter++) (*engineiter)->SendControlChange(Controller, Value, FragmentPos);
227	}
228	// dispatch event for engines listening to ALL MIDI channels
229	{
230	std::set<EngineChannel*>::iterator engineiter = midiChannelMap[midi_chan_all].begin();
231	std::set<EngineChannel*>::iterator end = midiChannelMap[midi_chan_all].end();
232	for (; engineiter != end; engineiter++) (*engineiter)->SendControlChange(Controller, Value, FragmentPos);
233	}
234	MidiChannelMapReader.Unlock();
235	}
236
237	void MidiInputPort::DispatchSysex(void* pData, uint Size) {
238	const std::set<Engine*> allEngines = SysexListenersReader.Lock();
239	// dispatch event to all engine instances
240	std::set<Engine*>::iterator engineiter = allEngines.begin();
241	std::set<Engine*>::iterator end = allEngines.end();
242	for (; engineiter != end; engineiter++) (*engineiter)->SendSysex(pData, Size);
243	SysexListenersReader.Unlock();
244	}
245
246	void MidiInputPort::DispatchProgramChange(uint8_t Program, uint MidiChannel) {
247	if (Program > 127 \|\| MidiChannel > 16) return;
248	if (!pDevice \|\| !pDevice->pSampler) {
249	std::cerr << "MidiInputPort: ERROR, no sampler instance to handle program change."
250	<< "This is a bug, please report it!\n" << std::flush;
251	return;
252	}
253
254	Sampler* pSampler = (Sampler*) pDevice->pSampler;
255	SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(Program);
256	if (!pSamplerChannel) return;
257
258	EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
259	if (!pEngineChannel) return;
260
261	// disconnect from the engine channel which was connected by the last PC event
262	if (pPreviousProgramChangeEngineChannel)
263	Disconnect(pPreviousProgramChangeEngineChannel);
264
265	// now connect to the new engine channel and remember it
266	try {
267	Connect(pEngineChannel, (midi_chan_t) MidiChannel);
268	pPreviousProgramChangeEngineChannel = pEngineChannel;
269	}
270	catch (...) { /* NOOP */ }
271	}
272
273	void MidiInputPort::Connect(EngineChannel* pEngineChannel, midi_chan_t MidiChannel) {
274	if (MidiChannel < 0 \|\| MidiChannel > 16)
275	throw MidiInputException("MIDI channel index out of bounds");
276
277	// first check if desired connection is already established
278	MidiChannelMapMutex.Lock();
279	MidiChannelMap_t& midiChannelMap = MidiChannelMap.GetConfigForUpdate();
280	bool bAlreadyDone = midiChannelMap[MidiChannel].count(pEngineChannel);
281	MidiChannelMapMutex.Unlock();
282	if (bAlreadyDone) return;
283
284	// remove all other connections of that engine channel (if any)
285	Disconnect(pEngineChannel);
286
287	// register engine channel on the desired MIDI channel
288	MidiChannelMapMutex.Lock();
289	MidiChannelMap.GetConfigForUpdate()[MidiChannel].insert(pEngineChannel);
290	MidiChannelMap.SwitchConfig()[MidiChannel].insert(pEngineChannel);
291	MidiChannelMapMutex.Unlock();
292
293	// inform engine channel about this connection
294	pEngineChannel->Connect(this, MidiChannel);
295
296	// mark engine channel as changed
297	pEngineChannel->StatusChanged(true);
298	}
299
300	void MidiInputPort::Disconnect(EngineChannel* pEngineChannel) {
301	if (!pEngineChannel) return;
302
303	bool bChannelFound = false;
304
305	// unregister engine channel from all MIDI channels
306	MidiChannelMapMutex.Lock();
307	try {
308	{
309	MidiChannelMap_t& midiChannelMap = MidiChannelMap.GetConfigForUpdate();
310	for (int i = 0; i <= 16; i++) {
311	bChannelFound \|= midiChannelMap[i].count(pEngineChannel);
312	midiChannelMap[i].erase(pEngineChannel);
313	}
314	}
315	// do the same update again, after switching to the other config
316	{
317	MidiChannelMap_t& midiChannelMap = MidiChannelMap.SwitchConfig();
318	for (int i = 0; i <= 16; i++) {
319	bChannelFound \|= midiChannelMap[i].count(pEngineChannel);
320	midiChannelMap[i].erase(pEngineChannel);
321	}
322	}
323	}
324	catch(...) { /* NOOP */ }
325	MidiChannelMapMutex.Unlock();
326
327	// inform engine channel about the disconnection (if there is one)
328	if (bChannelFound) pEngineChannel->DisconnectMidiInputPort();
329
330	// mark engine channel as changed
331	pEngineChannel->StatusChanged(true);
332	}
333
334	SynchronizedConfig<std::set<LinuxSampler::Engine*> > MidiInputPort::SysexListeners;
335
336	void MidiInputPort::AddSysexListener(Engine* engine) {
337	std::pair<std::set<Engine*>::iterator, bool> p = SysexListeners.GetConfigForUpdate().insert(engine);
338	if (p.second) SysexListeners.SwitchConfig().insert(engine);
339	}
340
341	bool MidiInputPort::RemoveSysexListener(Engine* engine) {
342	int count = SysexListeners.GetConfigForUpdate().erase(engine);
343	if (count) SysexListeners.SwitchConfig().erase(engine);
344	return count;
345	}
346
347	} // namespace LinuxSampler