drivers/audio/AudioOutputDeviceJack.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_AUDIOOUTPUTDEVICEJACK_H__
#define __LS_AUDIOOUTPUTDEVICEJACK_H__

#include "../../common/global.h"

#if HAVE_JACK

#include <vector>
#include <sstream>
#include <jack/jack.h>

#include "AudioOutputDevice.h"
#include "../../common/ConditionServer.h"

namespace LinuxSampler {

    /** JACK audio output driver
     *
     * Implements audio output to the JACK Audio Connection Kit (JACK).
     */
    class AudioOutputDeviceJack : public AudioOutputDevice {
        public:
            AudioOutputDeviceJack(std::map<String,DeviceCreationParameter*> Parameters);
            ~AudioOutputDeviceJack();

            /**
             * Audio channel implementation for the JACK audio driver.
             */
            class AudioChannelJack : public AudioChannel {
                public:
                    /** Audio Channel Parameter 'NAME'
                     *
                     * Used to assign an arbitrary name to an audio channel.
                     */
                    class ParameterName : public AudioChannel::ParameterName {
                        public:
                            ParameterName(AudioChannelJack* pChannel);
                            virtual void OnSetValue(String s);
                        protected:
                            AudioChannelJack* pChannel;
                    };

                    /** Audio Channel Parameter 'JACK_BINDINGS'
                     *
                     * Used to connect to other JACK clients.
                     */
                    class ParameterJackBindings : public DeviceRuntimeParameterStrings {
                        public:
                            ParameterJackBindings(AudioChannelJack* pChannel);
                            virtual String              Description();
                            virtual bool                Fix();
                            virtual std::vector<String> PossibilitiesAsString();
                            virtual void                OnSetValue(std::vector<String> vS);
                            static String Name();
                        protected:
                            AudioChannelJack* pChannel;
                    };
                protected:
                    AudioChannelJack(uint ChannelNr, AudioOutputDeviceJack* pDevice) throw (AudioOutputException);
                    ~AudioChannelJack();
                    friend class AudioOutputDeviceJack;
                private:
                    AudioOutputDeviceJack* pDevice;
                    jack_port_t*           hJackPort;
                    uint                   ChannelNr;

                    float* CreateJackPort(uint ChannelNr, AudioOutputDeviceJack* pDevice) throw (AudioOutputException);
            };

            // derived abstract methods from class 'AudioOutputDevice'
            virtual void Play();
            virtual bool IsPlaying();
            virtual void Stop();
            virtual uint MaxSamplesPerCycle();
            virtual uint SampleRate();
            virtual AudioChannel* CreateChannel(uint ChannelNr);


            static String Name();

            virtual String Driver();

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

            int Process(uint Samples);  // FIXME: should be private
        protected:
            AudioOutputDeviceJack(String* AutoConnectPortIDs = NULL, uint AutoConnectPorts = 0);
        private:
            ConditionServer csIsPlaying;
            uint            uiMaxSamplesPerCycle;
            jack_client_t*  hJackClient;
    };

    // Callback functions for the libjack API
    int  __libjack_process_callback(jack_nframes_t nframes, void* arg);
    void __libjack_shutdown_callback(void* arg);
}

#endif // HAVE_JACK
#endif // __LS_AUDIOOUTPUTDEVICEJACK_H__
1	schoenebeck	200	/***************************************************************************
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_AUDIOOUTPUTDEVICEJACK_H__
24			#define __LS_AUDIOOUTPUTDEVICEJACK_H__
25
26			#include "../../common/global.h"
27
28			#if HAVE_JACK
29
30			#include <vector>
31			#include <sstream>
32			#include <jack/jack.h>
33
34			#include "AudioOutputDevice.h"
35			#include "../../common/ConditionServer.h"
36
37			namespace LinuxSampler {
38
39			/** JACK audio output driver
40			*
41			* Implements audio output to the JACK Audio Connection Kit (JACK).
42			*/
43			class AudioOutputDeviceJack : public AudioOutputDevice {
44			public:
45			AudioOutputDeviceJack(std::map<String,DeviceCreationParameter*> Parameters);
46			~AudioOutputDeviceJack();
47
48	schoenebeck	226	/**
49			* Audio channel implementation for the JACK audio driver.
50	schoenebeck	221	*/
51	schoenebeck	226	class AudioChannelJack : public AudioChannel {
52	schoenebeck	200	public:
53	schoenebeck	226	/** Audio Channel Parameter 'NAME'
54			*
55			* Used to assign an arbitrary name to an audio channel.
56			*/
57			class ParameterName : public AudioChannel::ParameterName {
58			public:
59			ParameterName(AudioChannelJack* pChannel);
60			virtual void OnSetValue(String s);
61			protected:
62			AudioChannelJack* pChannel;
63			};
64
65			/** Audio Channel Parameter 'JACK_BINDINGS'
66			*
67			* Used to connect to other JACK clients.
68			*/
69			class ParameterJackBindings : public DeviceRuntimeParameterStrings {
70			public:
71			ParameterJackBindings(AudioChannelJack* pChannel);
72			virtual String Description();
73			virtual bool Fix();
74			virtual std::vector<String> PossibilitiesAsString();
75			virtual void OnSetValue(std::vector<String> vS);
76			static String Name();
77			protected:
78			AudioChannelJack* pChannel;
79			};
80	schoenebeck	200	protected:
81	schoenebeck	226	AudioChannelJack(uint ChannelNr, AudioOutputDeviceJack* pDevice) throw (AudioOutputException);
82			~AudioChannelJack();
83			friend class AudioOutputDeviceJack;
84			private:
85			AudioOutputDeviceJack* pDevice;
86			jack_port_t* hJackPort;
87			uint ChannelNr;
88
89			float* CreateJackPort(uint ChannelNr, AudioOutputDeviceJack* pDevice) throw (AudioOutputException);
90	schoenebeck	200	};
91
92			// derived abstract methods from class 'AudioOutputDevice'
93			virtual void Play();
94			virtual bool IsPlaying();
95			virtual void Stop();
96			virtual uint MaxSamplesPerCycle();
97			virtual uint SampleRate();
98	schoenebeck	226	virtual AudioChannel* CreateChannel(uint ChannelNr);
99	schoenebeck	200
100	schoenebeck	226
101	schoenebeck	200	static String Name();
102
103			virtual String Driver();
104
105			static String Description();
106			static String Version();
107
108			int Process(uint Samples); // FIXME: should be private
109			protected:
110			AudioOutputDeviceJack(String* AutoConnectPortIDs = NULL, uint AutoConnectPorts = 0);
111			private:
112	schoenebeck	226	ConditionServer csIsPlaying;
113			uint uiMaxSamplesPerCycle;
114			jack_client_t* hJackClient;
115	schoenebeck	200	};
116
117			// Callback functions for the libjack API
118			int __libjack_process_callback(jack_nframes_t nframes, void* arg);
119			void __libjack_shutdown_callback(void* arg);
120			}
121
122			#endif // HAVE_JACK
123			#endif // __LS_AUDIOOUTPUTDEVICEJACK_H__