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	/***************************************************************************
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	/**
49	* Audio channel implementation for the JACK audio driver.
50	*/
51	class AudioChannelJack : public AudioChannel {
52	public:
53	/** 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	protected:
81	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	};
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	virtual AudioChannel* CreateChannel(uint ChannelNr);
99
100
101	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	ConditionServer csIsPlaying;
113	uint uiMaxSamplesPerCycle;
114	jack_client_t* hJackClient;
115	};
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__