src/mididriver/MidiInputDevice.cpp

/***************************************************************************
 *                                                                         *
 *   LinuxSampler - modular, streaming capable sampler                     *
 *                                                                         *
 *   Copyright (C) 2003, 2004 by Benno Senoner and 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 "MidiInputDevice.h"

namespace LinuxSampler {

    MidiInputDevice::MidiInputDevice(std::map<String,DeviceCreationParameter*> DriverParameters) {
            this->Parameters = DriverParameters;
    }

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

    std::map<String,DeviceCreationParameter*> MidiInputDevice::AvailableParameters() {
            static const std::map<String,DeviceCreationParameter*> available_parameters = CreateAvailableParameters();
            return available_parameters;
    }
                                                                                                                                                            
    std::map<String,DeviceCreationParameter*> MidiInputDevice::CreateAvailableParameters() {
            static ParameterActive     param_active(NULL);
            static ParameterPorts      param_ports(NULL);
            std::map<String,DeviceCreationParameter*> result;
            result["active"]     = &param_active;
            result["ports"]      = &param_ports;
            return result;
    }

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

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

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

    std::map<String,DeviceCreationParameter*> MidiInputDevice::MidiInputPort::AvailableParameters() {
            static const std::map<String,DeviceCreationParameter*> available_parameters = CreateAvailableParameters();
            return available_parameters;
    }
                                                                                                                                                            
    std::map<String,DeviceCreationParameter*> MidiInputDevice::MidiInputPort::CreateAvailableParameters() {
            static ParameterName     param_name(NULL);
            std::map<String,DeviceCreationParameter*> result;
            result["name"]     = &param_name;
            return result;
    }

    std::map<String,DeviceCreationParameter*> MidiInputDevice::DeviceParameters() {
            return Parameters;
    }

    std::map<String,DeviceCreationParameter*> MidiInputDevice::MidiInputPort::DeviceParameters() {
            return Parameters;
    }

    void MidiInputDevice::MidiInputPort::DispatchNoteOn(uint8_t Key, uint8_t Velocity, uint MidiChannel) {
        std::set<Engine*>::iterator engineiter = MidiChannelMap[MidiChannel].begin();
        std::set<Engine*>::iterator end        = MidiChannelMap[MidiChannel].end();
        for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOn(Key, Velocity);
    }

    void MidiInputDevice::MidiInputPort::DispatchNoteOff(uint8_t Key, uint8_t Velocity, uint MidiChannel) {
        std::set<Engine*>::iterator engineiter = MidiChannelMap[MidiChannel].begin();
        std::set<Engine*>::iterator end        = MidiChannelMap[MidiChannel].end();
        for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOff(Key, Velocity);
    }

    void MidiInputDevice::MidiInputPort::DispatchPitchbend(int Pitch, uint MidiChannel) {
        std::set<Engine*>::iterator engineiter = MidiChannelMap[MidiChannel].begin();
        std::set<Engine*>::iterator end        = MidiChannelMap[MidiChannel].end();
        for (; engineiter != end; engineiter++) (*engineiter)->SendPitchbend(Pitch);
    }

    void MidiInputDevice::MidiInputPort::DispatchControlChange(uint8_t Controller, uint8_t Value, uint MidiChannel) {
        std::set<Engine*>::iterator engineiter = MidiChannelMap[MidiChannel].begin();
        std::set<Engine*>::iterator end        = MidiChannelMap[MidiChannel].end();
        for (; engineiter != end; engineiter++) (*engineiter)->SendControlChange(Controller, Value);
    }

    void MidiInputDevice::MidiInputPort::Connect(Engine* pEngine, midi_chan_t MidiChannel) {
        if (MidiChannel < 0 || MidiChannel > 16)
            throw MidiInputException("MIDI channel index out of bounds");
        Disconnect(pEngine);
        MidiChannelMap[MidiChannel].insert(pEngine);
    }

    void MidiInputDevice::MidiInputPort::Disconnect(Engine* pEngine) {
        try { for (int i = 0; i <= 16; i++) MidiChannelMap[i].erase(pEngine); }
        catch(...) { /* NOOP */ }
    }

    void MidiInputDevice::AcquirePorts(uint newPorts) {
         int diff = this->Ports.size() - newPorts;
         if (!diff)
                 return; //Number of ports matches already, nothing to do.

         while (diff != 0) {
                 if (diff > 0) {        //We've got too many ports, remove one
                         std::map<int,MidiInputPort*>::iterator portsIter = Ports.end();
                         Ports.erase(--portsIter);
                         delete portsIter->second;
                         diff--;
                 }
                 if (diff < 0) {       //We don't have enough ports, create one
                         MidiInputPort* midiPort = this->CreateMidiPort();
                         Ports[midiPort->portNumber] = midiPort;
                         diff++;
                 }
         }
    }

} // namespace LinuxSampler
1	/***************************************************************************
2	* *
3	* LinuxSampler - modular, streaming capable sampler *
4	* *
5	* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6	* *
7	* This program is free software; you can redistribute it and/or modify *
8	* it under the terms of the GNU General Public License as published by *
9	* the Free Software Foundation; either version 2 of the License, or *
10	* (at your option) any later version. *
11	* *
12	* This program is distributed in the hope that it will be useful, *
13	* but WITHOUT ANY WARRANTY; without even the implied warranty of *
14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
15	* GNU General Public License for more details. *
16	* *
17	* You should have received a copy of the GNU General Public License *
18	* along with this program; if not, write to the Free Software *
19	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
20	* MA 02111-1307 USA *
21	***************************************************************************/
22
23	#include "MidiInputDevice.h"
24
25	namespace LinuxSampler {
26
27	MidiInputDevice::MidiInputDevice(std::map<String,DeviceCreationParameter*> DriverParameters) {
28	this->Parameters = DriverParameters;
29	}
30
31	MidiInputDevice::~MidiInputDevice() {
32	std::map<String,DeviceCreationParameter*>::iterator iter = Parameters.begin();
33	while (iter != Parameters.end()) {
34	Parameters.erase(iter);
35	delete iter->second;
36	iter++;
37	}
38	}
39
40	std::map<String,DeviceCreationParameter*> MidiInputDevice::AvailableParameters() {
41	static const std::map<String,DeviceCreationParameter*> available_parameters = CreateAvailableParameters();
42	return available_parameters;
43	}
44
45	std::map<String,DeviceCreationParameter*> MidiInputDevice::CreateAvailableParameters() {
46	static ParameterActive param_active(NULL);
47	static ParameterPorts param_ports(NULL);
48	std::map<String,DeviceCreationParameter*> result;
49	result["active"] = &param_active;
50	result["ports"] = &param_ports;
51	return result;
52	}
53
54	MidiInputDevice::MidiInputPort::~MidiInputPort() {
55	std::map<String,DeviceCreationParameter*>::iterator iter = Parameters.begin();
56	while (iter != Parameters.end()) {
57	Parameters.erase(iter);
58	delete iter->second;
59	iter++;
60	}
61	}
62
63	MidiInputDevice* MidiInputDevice::MidiInputPort::GetDevice() {
64	return pDevice;
65	}
66
67	uint MidiInputDevice::MidiInputPort::GetPortNumber() {
68	return portNumber;
69	}
70
71	std::map<String,DeviceCreationParameter*> MidiInputDevice::MidiInputPort::AvailableParameters() {
72	static const std::map<String,DeviceCreationParameter*> available_parameters = CreateAvailableParameters();
73	return available_parameters;
74	}
75
76	std::map<String,DeviceCreationParameter*> MidiInputDevice::MidiInputPort::CreateAvailableParameters() {
77	static ParameterName param_name(NULL);
78	std::map<String,DeviceCreationParameter*> result;
79	result["name"] = &param_name;
80	return result;
81	}
82
83	std::map<String,DeviceCreationParameter*> MidiInputDevice::DeviceParameters() {
84	return Parameters;
85	}
86
87	std::map<String,DeviceCreationParameter*> MidiInputDevice::MidiInputPort::DeviceParameters() {
88	return Parameters;
89	}
90
91	void MidiInputDevice::MidiInputPort::DispatchNoteOn(uint8_t Key, uint8_t Velocity, uint MidiChannel) {
92	std::set<Engine*>::iterator engineiter = MidiChannelMap[MidiChannel].begin();
93	std::set<Engine*>::iterator end = MidiChannelMap[MidiChannel].end();
94	for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOn(Key, Velocity);
95	}
96
97	void MidiInputDevice::MidiInputPort::DispatchNoteOff(uint8_t Key, uint8_t Velocity, uint MidiChannel) {
98	std::set<Engine*>::iterator engineiter = MidiChannelMap[MidiChannel].begin();
99	std::set<Engine*>::iterator end = MidiChannelMap[MidiChannel].end();
100	for (; engineiter != end; engineiter++) (*engineiter)->SendNoteOff(Key, Velocity);
101	}
102
103	void MidiInputDevice::MidiInputPort::DispatchPitchbend(int Pitch, uint MidiChannel) {
104	std::set<Engine*>::iterator engineiter = MidiChannelMap[MidiChannel].begin();
105	std::set<Engine*>::iterator end = MidiChannelMap[MidiChannel].end();
106	for (; engineiter != end; engineiter++) (*engineiter)->SendPitchbend(Pitch);
107	}
108
109	void MidiInputDevice::MidiInputPort::DispatchControlChange(uint8_t Controller, uint8_t Value, uint MidiChannel) {
110	std::set<Engine*>::iterator engineiter = MidiChannelMap[MidiChannel].begin();
111	std::set<Engine*>::iterator end = MidiChannelMap[MidiChannel].end();
112	for (; engineiter != end; engineiter++) (*engineiter)->SendControlChange(Controller, Value);
113	}
114
115	void MidiInputDevice::MidiInputPort::Connect(Engine* pEngine, midi_chan_t MidiChannel) {
116	if (MidiChannel < 0 \|\| MidiChannel > 16)
117	throw MidiInputException("MIDI channel index out of bounds");
118	Disconnect(pEngine);
119	MidiChannelMap[MidiChannel].insert(pEngine);
120	}
121
122	void MidiInputDevice::MidiInputPort::Disconnect(Engine* pEngine) {
123	try { for (int i = 0; i <= 16; i++) MidiChannelMap[i].erase(pEngine); }
124	catch(...) { /* NOOP */ }
125	}
126
127	void MidiInputDevice::AcquirePorts(uint newPorts) {
128	int diff = this->Ports.size() - newPorts;
129	if (!diff)
130	return; //Number of ports matches already, nothing to do.
131
132	while (diff != 0) {
133	if (diff > 0) { //We've got too many ports, remove one
134	std::map<int,MidiInputPort*>::iterator portsIter = Ports.end();
135	Ports.erase(--portsIter);
136	delete portsIter->second;
137	diff--;
138	}
139	if (diff < 0) { //We don't have enough ports, create one
140	MidiInputPort* midiPort = this->CreateMidiPort();
141	Ports[midiPort->portNumber] = midiPort;
142	diff++;
143	}
144	}
145	}
146
147	} // namespace LinuxSampler