drivers/midi/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:

            /**
             * MIDI Port implementation for the ALSA MIDI input driver.
             */
            class MidiInputPortAlsa : public MidiInputPort {
                public:
                    /** MIDI Port Parameter 'NAME'
                     *
                     * Used to assign an arbitrary name to the MIDI port.
                     */
                    class ParameterName : public MidiInputPort::ParameterName {
                        public:
                            ParameterName(MidiInputPort* pPort) throw (LinuxSamplerException);
                            virtual void OnSetValue(String s) throw (LinuxSamplerException);
                    };

                    /** MIDI Port Parameter 'ALSA_SEQ_BINDINGS'
                     *
                     * Used to connect to other Alsa sequencer clients.
                     */
                    class ParameterAlsaSeqBindings : public DeviceRuntimeParameterStrings {
                        public:
                            ParameterAlsaSeqBindings(MidiInputPortAlsa* pPort);
                            virtual String Description();
                            virtual bool Fix();
                            virtual std::vector<String> PossibilitiesAsString();
                            virtual void OnSetValue(std::vector<String> vS) throw (LinuxSamplerException);
                        protected:
                            MidiInputPortAlsa* pPort;
                    };

                    void ConnectToAlsaMidiSource(const char* MidiSource);
                protected:
                    MidiInputPortAlsa(MidiInputDeviceAlsa* pDevice) throw (MidiInputException);
                    ~MidiInputPortAlsa();
                    friend class MidiInputDeviceAlsa;
                private:
                    MidiInputDeviceAlsa* pDevice;

                    friend class ParameterName;
                    friend class ParameterAlsaSeqBindings;
            };

            MidiInputDeviceAlsa(std::map<String,DeviceCreationParameter*> Parameters);
            ~MidiInputDeviceAlsa();

            // derived abstract methods from class 'MidiInputDevice'
            void Listen();
            void StopListen();
            virtual String Driver();
            static String Name();
            static String Description();
            static String Version();

            MidiInputPortAlsa* CreateMidiPort();
        protected:
            int Main(); ///< Implementation of virtual method from class Thread
        private:
            snd_seq_t* hAlsaSeq;
            int        hAlsaSeqClient;       ///< Alsa Sequencer client ID

            friend class MidiInputPortAlsa;
            friend class MidiInputPortAlsa::ParameterName;
            friend class MidiInputPortAlsa::ParameterAlsaSeqBindings;
    };
}

#endif // __LS_MIDIINPUTDEVICEALSA_H__
1	schoenebeck	201	/***************************************************************************
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	schoenebeck	221
43			/**
44			* MIDI Port implementation for the ALSA MIDI input driver.
45			*/
46			class MidiInputPortAlsa : public MidiInputPort {
47			public:
48			/** MIDI Port Parameter 'NAME'
49			*
50			* Used to assign an arbitrary name to the MIDI port.
51			*/
52			class ParameterName : public MidiInputPort::ParameterName {
53			public:
54			ParameterName(MidiInputPort* pPort) throw (LinuxSamplerException);
55			virtual void OnSetValue(String s) throw (LinuxSamplerException);
56			};
57
58			/** MIDI Port Parameter 'ALSA_SEQ_BINDINGS'
59			*
60			* Used to connect to other Alsa sequencer clients.
61			*/
62			class ParameterAlsaSeqBindings : public DeviceRuntimeParameterStrings {
63			public:
64			ParameterAlsaSeqBindings(MidiInputPortAlsa* pPort);
65			virtual String Description();
66			virtual bool Fix();
67			virtual std::vector<String> PossibilitiesAsString();
68			virtual void OnSetValue(std::vector<String> vS) throw (LinuxSamplerException);
69			protected:
70			MidiInputPortAlsa* pPort;
71			};
72
73			void ConnectToAlsaMidiSource(const char* MidiSource);
74			protected:
75			MidiInputPortAlsa(MidiInputDeviceAlsa* pDevice) throw (MidiInputException);
76			~MidiInputPortAlsa();
77			friend class MidiInputDeviceAlsa;
78			private:
79			MidiInputDeviceAlsa* pDevice;
80	schoenebeck	277
81			friend class ParameterName;
82			friend class ParameterAlsaSeqBindings;
83	schoenebeck	221	};
84
85	schoenebeck	201	MidiInputDeviceAlsa(std::map<String,DeviceCreationParameter*> Parameters);
86			~MidiInputDeviceAlsa();
87
88			// derived abstract methods from class 'MidiInputDevice'
89			void Listen();
90			void StopListen();
91	schoenebeck	221	virtual String Driver();
92			static String Name();
93			static String Description();
94			static String Version();
95	schoenebeck	201
96	schoenebeck	221	MidiInputPortAlsa* CreateMidiPort();
97	schoenebeck	201	protected:
98			int Main(); ///< Implementation of virtual method from class Thread
99			private:
100			snd_seq_t* hAlsaSeq;
101			int hAlsaSeqClient; ///< Alsa Sequencer client ID
102	schoenebeck	277
103			friend class MidiInputPortAlsa;
104			friend class MidiInputPortAlsa::ParameterName;
105			friend class MidiInputPortAlsa::ParameterAlsaSeqBindings;
106	schoenebeck	201	};
107			}
108
109			#endif // __LS_MIDIINPUTDEVICEALSA_H__