drivers/midi/MidiInputDeviceAlsa.h

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

#ifndef __LS_MIDIINPUTDEVICEALSA_H__
#define __LS_MIDIINPUTDEVICEALSA_H__

#include <alsa/asoundlib.h>

#include "../../common/global.h"
#include "../../common/Thread.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 (Exception);
                            virtual void OnSetValue(String s) throw (Exception);
                    };

                    /** 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 (Exception);
                        protected:
                            MidiInputPortAlsa* pPort;
                    };

                    /** MIDI Port Parameter 'ALSA_SEQ_ID'
                     *
                     * Reflects the ALSA sequencer ID of this MIDI port,
                     * e.g. "128:0".
                     */
                    class ParameterAlsaSeqId : public DeviceRuntimeParameterString {
                        public:
                            ParameterAlsaSeqId(MidiInputPortAlsa* pPort);
                            virtual String              Description();
                            virtual bool                Fix();
                            virtual std::vector<String> PossibilitiesAsString();
                            virtual void                OnSetValue(String s);
                    };

                    void ConnectToAlsaMidiSource(const char* MidiSource);
                protected:
                    std::vector<snd_seq_port_subscribe_t*> subscriptions;

                    MidiInputPortAlsa(MidiInputDeviceAlsa* pDevice) throw (MidiInputException);
                    ~MidiInputPortAlsa();
                    friend class MidiInputDeviceAlsa;
                private:
                    MidiInputDeviceAlsa* pDevice;

                    friend class ParameterName;
                    friend class ParameterAlsaSeqBindings;
            };

            MidiInputDeviceAlsa(std::map<String,DeviceCreationParameter*> Parameters, void* pSampler);
            ~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	schoenebeck	880	* Copyright (C) 2005, 2006 Christian Schoenebeck *
7	schoenebeck	201	* *
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			#ifndef __LS_MIDIINPUTDEVICEALSA_H__
25			#define __LS_MIDIINPUTDEVICEALSA_H__
26
27			#include <alsa/asoundlib.h>
28
29			#include "../../common/global.h"
30			#include "../../common/Thread.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	schoenebeck	880	ParameterName(MidiInputPort* pPort) throw (Exception);
55			virtual void OnSetValue(String s) throw (Exception);
56	schoenebeck	221	};
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	schoenebeck	880	virtual void OnSetValue(std::vector<String> vS) throw (Exception);
69	schoenebeck	221	protected:
70			MidiInputPortAlsa* pPort;
71			};
72
73	schoenebeck	476	/** MIDI Port Parameter 'ALSA_SEQ_ID'
74			*
75			* Reflects the ALSA sequencer ID of this MIDI port,
76			* e.g. "128:0".
77			*/
78			class ParameterAlsaSeqId : public DeviceRuntimeParameterString {
79			public:
80			ParameterAlsaSeqId(MidiInputPortAlsa* pPort);
81			virtual String Description();
82			virtual bool Fix();
83			virtual std::vector<String> PossibilitiesAsString();
84			virtual void OnSetValue(String s);
85			};
86
87	schoenebeck	221	void ConnectToAlsaMidiSource(const char* MidiSource);
88			protected:
89	iliev	1296	std::vector<snd_seq_port_subscribe_t*> subscriptions;
90
91	schoenebeck	221	MidiInputPortAlsa(MidiInputDeviceAlsa* pDevice) throw (MidiInputException);
92			~MidiInputPortAlsa();
93			friend class MidiInputDeviceAlsa;
94			private:
95			MidiInputDeviceAlsa* pDevice;
96	schoenebeck	277
97			friend class ParameterName;
98			friend class ParameterAlsaSeqBindings;
99	schoenebeck	221	};
100
101	schoenebeck	551	MidiInputDeviceAlsa(std::map<String,DeviceCreationParameter> Parameters, void pSampler);
102	schoenebeck	201	~MidiInputDeviceAlsa();
103
104			// derived abstract methods from class 'MidiInputDevice'
105			void Listen();
106			void StopListen();
107	schoenebeck	221	virtual String Driver();
108			static String Name();
109			static String Description();
110			static String Version();
111	schoenebeck	201
112	schoenebeck	221	MidiInputPortAlsa* CreateMidiPort();
113	schoenebeck	201	protected:
114			int Main(); ///< Implementation of virtual method from class Thread
115			private:
116			snd_seq_t* hAlsaSeq;
117			int hAlsaSeqClient; ///< Alsa Sequencer client ID
118	schoenebeck	277
119			friend class MidiInputPortAlsa;
120			friend class MidiInputPortAlsa::ParameterName;
121			friend class MidiInputPortAlsa::ParameterAlsaSeqBindings;
122	schoenebeck	201	};
123			}
124
125			#endif // __LS_MIDIINPUTDEVICEALSA_H__