src/mididriver/MidiInputDeviceAlsa.h

/***************************************************************************
 *                                                                         *
 *   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                                                   *
 ***************************************************************************/

#ifndef __LS_MIDIINPUTDEVICEALSA_H__
#define __LS_MIDIINPUTDEVICEALSA_H__

#include <alsa/asoundlib.h>

#include "../common/global.h"
#include "../common/Thread.h"
#include "../common/RingBuffer.h"
#include "MidiInputDevice.h"

namespace LinuxSampler {

    /** ALSA MIDI input driver
     *
     * Implements MIDI input for the Advanced Linux Sound Architecture
     * (ALSA).
     */
    class MidiInputDeviceAlsa : public MidiInputDevice, public Thread {
        public:
            MidiInputDeviceAlsa(std::map<String,String> Parameters);
            ~MidiInputDeviceAlsa();

            // derived abstract methods from class 'MidiInputDevice'
            void Listen();
            void StopListen();
            String Driver() { return "Alsa"; };

            static String Description();
            static String Version();

            class MidiInputPortAlsa : public MidiInputPort {
                    public:
                            void ConnectToAlsaMidiSource(const char* MidiSource);

                            class ParameterAlsaSeqBindings : public DeviceCreationParameterString {
                                    public:
                                            ParameterAlsaSeqBindings(MidiInputPortAlsa* pPort) { this->pPort = pPort; InitWithDefault();}
                                            virtual String Description()                                                    { return "Bindings to other Alsa sequencer clients";   }
                                            virtual bool   Fix()                                                            { return false;   }
                                            virtual bool   Mandatory()                                                      { return false;   }
                                            virtual std::map<String,DeviceCreationParameter*> DependsAsParameters()         { return std::map<String,DeviceCreationParameter*>(); }
                                            virtual optional<String>    Default(std::map<String,String> Parameters)         { return ""; }
                                            virtual std::vector<String> PossibilitiesAsString(std::map<String,String> Parameters) { return std::vector<String>(); } //TODO
                                            virtual void             OnSetValue(String s) throw (LinuxSamplerException)     { pPort->ConnectToAlsaMidiSource(s.c_str()); }
                                    protected:
                                            MidiInputPortAlsa* pPort;
                            };

                    protected:
                            MidiInputPortAlsa(MidiInputDeviceAlsa* pDevice, int portNumber);
                            ~MidiInputPortAlsa();
                            friend class MidiInputDeviceAlsa;
                    private:
                            MidiInputDeviceAlsa* pDevice;
            };

            MidiInputPortAlsa* CreateMidiPort( void );

        protected:
            std::map<String,DeviceCreationParameter*> CreateParameters(std::map<String,String> Parameters);
            int Main(); ///< Implementation of virtual method from class Thread
        private:
            static std::map<String,DeviceCreationParameter*> CreateAvailableParameters();
            snd_seq_t* hAlsaSeq;
            int        hAlsaSeqClient;       ///< Alsa Sequencer client ID
    };
}

#endif // __LS_MIDIINPUTDEVICEALSA_H__
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	#ifndef __LS_MIDIINPUTDEVICEALSA_H__
24	#define __LS_MIDIINPUTDEVICEALSA_H__
25
26	#include <alsa/asoundlib.h>
27
28	#include "../common/global.h"
29	#include "../common/Thread.h"
30	#include "../common/RingBuffer.h"
31	#include "MidiInputDevice.h"
32
33	namespace LinuxSampler {
34
35	/** ALSA MIDI input driver
36	*
37	* Implements MIDI input for the Advanced Linux Sound Architecture
38	* (ALSA).
39	*/
40	class MidiInputDeviceAlsa : public MidiInputDevice, public Thread {
41	public:
42	MidiInputDeviceAlsa(std::map<String,String> Parameters);
43	~MidiInputDeviceAlsa();
44
45	// derived abstract methods from class 'MidiInputDevice'
46	void Listen();
47	void StopListen();
48	String Driver() { return "Alsa"; };
49
50	static String Description();
51	static String Version();
52
53	class MidiInputPortAlsa : public MidiInputPort {
54	public:
55	void ConnectToAlsaMidiSource(const char* MidiSource);
56
57	class ParameterAlsaSeqBindings : public DeviceCreationParameterString {
58	public:
59	ParameterAlsaSeqBindings(MidiInputPortAlsa* pPort) { this->pPort = pPort; InitWithDefault();}
60	virtual String Description() { return "Bindings to other Alsa sequencer clients"; }
61	virtual bool Fix() { return false; }
62	virtual bool Mandatory() { return false; }
63	virtual std::map<String,DeviceCreationParameter> DependsAsParameters() { return std::map<String,DeviceCreationParameter>(); }
64	virtual optional<String> Default(std::map<String,String> Parameters) { return ""; }
65	virtual std::vector<String> PossibilitiesAsString(std::map<String,String> Parameters) { return std::vector<String>(); } //TODO
66	virtual void OnSetValue(String s) throw (LinuxSamplerException) { pPort->ConnectToAlsaMidiSource(s.c_str()); }
67	protected:
68	MidiInputPortAlsa* pPort;
69	};
70
71	protected:
72	MidiInputPortAlsa(MidiInputDeviceAlsa* pDevice, int portNumber);
73	~MidiInputPortAlsa();
74	friend class MidiInputDeviceAlsa;
75	private:
76	MidiInputDeviceAlsa* pDevice;
77	};
78
79	MidiInputPortAlsa* CreateMidiPort( void );
80
81	protected:
82	std::map<String,DeviceCreationParameter*> CreateParameters(std::map<String,String> Parameters);
83	int Main(); ///< Implementation of virtual method from class Thread
84	private:
85	static std::map<String,DeviceCreationParameter*> CreateAvailableParameters();
86	snd_seq_t* hAlsaSeq;
87	int hAlsaSeqClient; ///< Alsa Sequencer client ID
88	};
89	}
90
91	#endif // __LS_MIDIINPUTDEVICEALSA_H__