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 parameter to connect to other Jack clients
            class ParameterJackBindings : public DeviceRuntimeParameterStrings {
                public:
                    ParameterJackBindings(AudioChannel* pChannel, std::vector<String> InitialBindings) : DeviceRuntimeParameterStrings(InitialBindings) { this->pChannel = pChannel; }
                    virtual String              Description()                      { return "Bindings to other JACK clients";                     }
                    virtual bool                Fix()                              { return false;                                                }
                    virtual std::vector<String> PossibilitiesAsString()            { return std::vector<String>(); /* TODO: to be implemented */  }
                    virtual void                OnSetValue(std::vector<String> vS) { /* TODO: code to connect to other jack clients */            }
                protected:
                    AudioChannel* pChannel;
            };

            // 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();

            static String Name();

            virtual String Driver();

            static String Description();
            static String Version();
            static std::map<String,DeviceCreationParameter*> AvailableParameters();

            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;
            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	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			// Audio channel parameter to connect to other Jack clients
49			class ParameterJackBindings : public DeviceRuntimeParameterStrings {
50			public:
51			ParameterJackBindings(AudioChannel* pChannel, std::vector<String> InitialBindings) : DeviceRuntimeParameterStrings(InitialBindings) { this->pChannel = pChannel; }
52			virtual String Description() { return "Bindings to other JACK clients"; }
53			virtual bool Fix() { return false; }
54			virtual std::vector<String> PossibilitiesAsString() { return std::vector<String>(); /* TODO: to be implemented */ }
55			virtual void OnSetValue(std::vector<String> vS) { /* TODO: code to connect to other jack clients */ }
56			protected:
57			AudioChannel* pChannel;
58			};
59
60			// derived abstract methods from class 'AudioOutputDevice'
61			virtual void Play();
62			virtual bool IsPlaying();
63			virtual void Stop();
64			virtual void AcquireChannels(uint uiChannels);
65			virtual uint MaxSamplesPerCycle();
66			virtual uint SampleRate();
67
68			static String Name();
69
70			virtual String Driver();
71
72			static String Description();
73			static String Version();
74			static std::map<String,DeviceCreationParameter*> AvailableParameters();
75
76			int Process(uint Samples); // FIXME: should be private
77			protected:
78			AudioOutputDeviceJack(String* AutoConnectPortIDs = NULL, uint AutoConnectPorts = 0);
79			private:
80			ConditionServer csIsPlaying;
81			uint uiMaxSamplesPerCycle;
82			jack_client_t* hJackClient;
83			std::vector<jack_port_t*> hJackPorts;
84			};
85
86			// Callback functions for the libjack API
87			int __libjack_process_callback(jack_nframes_t nframes, void* arg);
88			void __libjack_shutdown_callback(void* arg);
89			}
90
91			#endif // HAVE_JACK
92			#endif // __LS_AUDIOOUTPUTDEVICEJACK_H__