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:
            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();

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

#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			MidiInputDeviceAlsa(std::map<String,DeviceCreationParameter*> Parameters);
43			~MidiInputDeviceAlsa();
44
45			// derived abstract methods from class 'MidiInputDevice'
46			void Listen();
47			void StopListen();
48
49			virtual String Driver();
50
51			static String Name();
52
53			static String Description();
54			static String Version();
55
56			class MidiInputPortAlsa : public MidiInputPort {
57			public:
58			void ConnectToAlsaMidiSource(const char* MidiSource);
59
60			class ParameterAlsaSeqBindings : public DeviceCreationParameterString {
61			public:
62			ParameterAlsaSeqBindings(MidiInputPortAlsa* pPort) { this->pPort = pPort; InitWithDefault();}
63			virtual String Description() { return "Bindings to other Alsa sequencer clients"; }
64			virtual bool Fix() { return false; }
65			virtual bool Mandatory() { return false; }
66			virtual std::map<String,DeviceCreationParameter> DependsAsParameters() { return std::map<String,DeviceCreationParameter>(); }
67	schoenebeck	212	virtual optional<String> DefaultAsString(std::map<String,String> Parameters) { return ""; }
68	schoenebeck	201	virtual std::vector<String> PossibilitiesAsString(std::map<String,String> Parameters) { return std::vector<String>(); } //TODO
69			virtual void OnSetValue(String s) throw (LinuxSamplerException) { pPort->ConnectToAlsaMidiSource(s.c_str()); }
70			protected:
71			MidiInputPortAlsa* pPort;
72			};
73
74			protected:
75			MidiInputPortAlsa(MidiInputDeviceAlsa* pDevice, int portNumber);
76			~MidiInputPortAlsa();
77			friend class MidiInputDeviceAlsa;
78			private:
79			MidiInputDeviceAlsa* pDevice;
80			};
81
82			MidiInputPortAlsa* CreateMidiPort( void );
83
84			protected:
85			int Main(); ///< Implementation of virtual method from class Thread
86			private:
87			snd_seq_t* hAlsaSeq;
88			int hAlsaSeqClient; ///< Alsa Sequencer client ID
89			};
90			}
91
92			#endif // __LS_MIDIINPUTDEVICEALSA_H__