src/audiodriver/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(String* AutoConnectPortIDs = NULL, uint AutoConnectPorts = 0);
            ~AudioOutputDeviceJack();

            // derived abstract methods from class 'AudioOutputDevice'
            virtual void Play();
            virtual bool IsPlaying();
            virtual void Stop();
            virtual void AcquireChannels(uint uiChannels);
            virtual uint MaxSamplesPerCycle();
            virtual uint SampleRate();

            int Process(uint Samples);  // FIXME: should be private
        private:
            ConditionServer           csIsPlaying;
            uint                      uiMaxSamplesPerCycle;
            jack_client_t*            hJackClient;
            std::vector<jack_port_t*> hJackPorts;
    };

    // 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	53	/***************************************************************************
2			* *
3			* LinuxSampler - modular, streaming capable sampler *
4			* *
5	schoenebeck	56	* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6	schoenebeck	53	* *
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(String* AutoConnectPortIDs = NULL, uint AutoConnectPorts = 0);
46			~AudioOutputDeviceJack();
47
48			// derived abstract methods from class 'AudioOutputDevice'
49			virtual void Play();
50			virtual bool IsPlaying();
51			virtual void Stop();
52			virtual void AcquireChannels(uint uiChannels);
53			virtual uint MaxSamplesPerCycle();
54			virtual uint SampleRate();
55
56			int Process(uint Samples); // FIXME: should be private
57			private:
58			ConditionServer csIsPlaying;
59			uint uiMaxSamplesPerCycle;
60			jack_client_t* hJackClient;
61			std::vector<jack_port_t*> hJackPorts;
62			};
63
64			// Callback functions for the libjack API
65			int __libjack_process_callback(jack_nframes_t nframes, void* arg);
66			void __libjack_shutdown_callback(void* arg);
67			}
68
69			#endif // HAVE_JACK
70			#endif // __LS_AUDIOOUTPUTDEVICEJACK_H__