drivers/audio/AudioOutputDeviceFactory.cpp

/***************************************************************************
 *                                                                         *
 *   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                                                   *
 ***************************************************************************/

#include "AudioOutputDeviceFactory.h"

#if HAVE_ALSA
# include "AudioOutputDeviceAlsa.h"
#endif // HAVE_ALSA

#if HAVE_JACK
# include "AudioOutputDeviceJack.h"
#endif // HAVE_JACK

namespace LinuxSampler {

    std::map<String, AudioOutputDeviceFactory::InnerFactory*> AudioOutputDeviceFactory::InnerFactories;
    std::map<String, DeviceParameterFactory*> AudioOutputDeviceFactory::ParameterFactories;

#if HAVE_ALSA
    REGISTER_AUDIO_OUTPUT_DRIVER(AudioOutputDeviceAlsa);
    /* Common parameters for now they'll have to be registered here. */
    REGISTER_AUDIO_OUTPUT_DRIVER_PARAMETER(AudioOutputDeviceAlsa, ParameterActive);
    REGISTER_AUDIO_OUTPUT_DRIVER_PARAMETER(AudioOutputDeviceAlsa, ParameterSampleRate);
    REGISTER_AUDIO_OUTPUT_DRIVER_PARAMETER(AudioOutputDeviceAlsa, ParameterChannels);
    /* Driver specific parameters */
    REGISTER_AUDIO_OUTPUT_DRIVER_PARAMETER(AudioOutputDeviceAlsa, ParameterCard);
    REGISTER_AUDIO_OUTPUT_DRIVER_PARAMETER(AudioOutputDeviceAlsa, ParameterFragments);
    REGISTER_AUDIO_OUTPUT_DRIVER_PARAMETER(AudioOutputDeviceAlsa, ParameterFragmentSize);
#endif // HAVE_ALSA

#if HAVE_JACK
    REGISTER_AUDIO_OUTPUT_DRIVER(AudioOutputDeviceJack);
    /* Common parameters for now they'll have to be registered here. */
    REGISTER_AUDIO_OUTPUT_DRIVER_PARAMETER(AudioOutputDeviceJack, ParameterActive);
    REGISTER_AUDIO_OUTPUT_DRIVER_PARAMETER(AudioOutputDeviceJack, ParameterChannels);
#endif // HAVE_JACK

    AudioOutputDevice* AudioOutputDeviceFactory::Create(String DriverName, std::map<String,String> Parameters) throw (LinuxSamplerException) {
        if (!InnerFactories.count(DriverName)) throw LinuxSamplerException("There is no audio output driver '" + DriverName + "'.");
        //Let's see if we need to create parameters
        std::map<String,DeviceCreationParameter*> thisDeviceParams;
        DeviceParameterFactory* pParamFactory = ParameterFactories[DriverName];
        if (pParamFactory) {
                thisDeviceParams = pParamFactory->CreateAllParams(Parameters);
        } else {
                //No parameters are registered by the driver. Throw if any parameters were specified.
                if (Parameters.size() != 0) throw LinuxSamplerException("Driver '" + DriverName + "' does not have any parameters.");
        }
        //Now create the device using those parameters
        AudioOutputDevice* pDevice = InnerFactories[DriverName]->Create(thisDeviceParams);
        //Now attach all parameters to the newely created device.
        for (std::map<String,DeviceCreationParameter*>::iterator iter = thisDeviceParams.begin(); iter != thisDeviceParams.end(); iter++) {
                iter->second->Attach(pDevice);
        }
        return pDevice;
    }

    std::vector<String> AudioOutputDeviceFactory::AvailableDrivers() {
        std::vector<String> result;
        std::map<String, InnerFactory*>::iterator iter = InnerFactories.begin();
        while (iter != InnerFactories.end()) {
            result.push_back(iter->first);
            iter++;
        }
        return result;
    }

    String AudioOutputDeviceFactory::AvailableDriversAsString() {
        std::vector<String> drivers = AvailableDrivers();
        String result;
        std::vector<String>::iterator iter = drivers.begin();
        for (; iter != drivers.end(); iter++) {
            if (result != "") result += ",";
            result += *iter;
        }
        return result;
    }

    std::map<String,DeviceCreationParameter*> AudioOutputDeviceFactory::GetAvailableDriverParameters(String DriverName) throw (LinuxSamplerException) {
        if (!InnerFactories.count(DriverName)) throw LinuxSamplerException("There is no audio output driver '" + DriverName + "'.");
        std::map<String,DeviceCreationParameter*> thisDeviceParams;
        DeviceParameterFactory* pParamFactory = ParameterFactories[DriverName];
        if (pParamFactory) {
                thisDeviceParams = pParamFactory->CreateAllParams();
        }
        return thisDeviceParams;
    }

    DeviceCreationParameter* AudioOutputDeviceFactory::GetDriverParameter(String DriverName, String ParameterName) throw (LinuxSamplerException) {
        std::map<String,DeviceCreationParameter*> parameters = GetAvailableDriverParameters(DriverName);
        if (!parameters.count(ParameterName)) throw LinuxSamplerException("Audio output driver '" + DriverName + "' does not have a parameter '" + ParameterName + "'.");
        return parameters[ParameterName];
    }

    String AudioOutputDeviceFactory::GetDriverDescription(String DriverName) throw (LinuxSamplerException) {
        if (!InnerFactories.count(DriverName)) throw LinuxSamplerException("There is no audio output driver '" + DriverName + "'.");
        return InnerFactories[DriverName]->Description();
    }

    String AudioOutputDeviceFactory::GetDriverVersion(String DriverName) throw (LinuxSamplerException) {
        if (!InnerFactories.count(DriverName)) throw LinuxSamplerException("There is no audio output driver '" + DriverName + "'.");
        return InnerFactories[DriverName]->Version();
    }

} // namespace LinuxSampler
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	#include "AudioOutputDeviceFactory.h"
24
25	#if HAVE_ALSA
26	# include "AudioOutputDeviceAlsa.h"
27	#endif // HAVE_ALSA
28
29	#if HAVE_JACK
30	# include "AudioOutputDeviceJack.h"
31	#endif // HAVE_JACK
32
33	namespace LinuxSampler {
34
35	std::map<String, AudioOutputDeviceFactory::InnerFactory*> AudioOutputDeviceFactory::InnerFactories;
36	std::map<String, DeviceParameterFactory*> AudioOutputDeviceFactory::ParameterFactories;
37
38	#if HAVE_ALSA
39	REGISTER_AUDIO_OUTPUT_DRIVER(AudioOutputDeviceAlsa);
40	/* Common parameters for now they'll have to be registered here. */
41	REGISTER_AUDIO_OUTPUT_DRIVER_PARAMETER(AudioOutputDeviceAlsa, ParameterActive);
42	REGISTER_AUDIO_OUTPUT_DRIVER_PARAMETER(AudioOutputDeviceAlsa, ParameterSampleRate);
43	REGISTER_AUDIO_OUTPUT_DRIVER_PARAMETER(AudioOutputDeviceAlsa, ParameterChannels);
44	/* Driver specific parameters */
45	REGISTER_AUDIO_OUTPUT_DRIVER_PARAMETER(AudioOutputDeviceAlsa, ParameterCard);
46	REGISTER_AUDIO_OUTPUT_DRIVER_PARAMETER(AudioOutputDeviceAlsa, ParameterFragments);
47	REGISTER_AUDIO_OUTPUT_DRIVER_PARAMETER(AudioOutputDeviceAlsa, ParameterFragmentSize);
48	#endif // HAVE_ALSA
49
50	#if HAVE_JACK
51	REGISTER_AUDIO_OUTPUT_DRIVER(AudioOutputDeviceJack);
52	/* Common parameters for now they'll have to be registered here. */
53	REGISTER_AUDIO_OUTPUT_DRIVER_PARAMETER(AudioOutputDeviceJack, ParameterActive);
54	REGISTER_AUDIO_OUTPUT_DRIVER_PARAMETER(AudioOutputDeviceJack, ParameterChannels);
55	#endif // HAVE_JACK
56
57	AudioOutputDevice* AudioOutputDeviceFactory::Create(String DriverName, std::map<String,String> Parameters) throw (LinuxSamplerException) {
58	if (!InnerFactories.count(DriverName)) throw LinuxSamplerException("There is no audio output driver '" + DriverName + "'.");
59	//Let's see if we need to create parameters
60	std::map<String,DeviceCreationParameter*> thisDeviceParams;
61	DeviceParameterFactory* pParamFactory = ParameterFactories[DriverName];
62	if (pParamFactory) {
63	thisDeviceParams = pParamFactory->CreateAllParams(Parameters);
64	} else {
65	//No parameters are registered by the driver. Throw if any parameters were specified.
66	if (Parameters.size() != 0) throw LinuxSamplerException("Driver '" + DriverName + "' does not have any parameters.");
67	}
68	//Now create the device using those parameters
69	AudioOutputDevice* pDevice = InnerFactories[DriverName]->Create(thisDeviceParams);
70	//Now attach all parameters to the newely created device.
71	for (std::map<String,DeviceCreationParameter*>::iterator iter = thisDeviceParams.begin(); iter != thisDeviceParams.end(); iter++) {
72	iter->second->Attach(pDevice);
73	}
74	return pDevice;
75	}
76
77	std::vector<String> AudioOutputDeviceFactory::AvailableDrivers() {
78	std::vector<String> result;
79	std::map<String, InnerFactory*>::iterator iter = InnerFactories.begin();
80	while (iter != InnerFactories.end()) {
81	result.push_back(iter->first);
82	iter++;
83	}
84	return result;
85	}
86
87	String AudioOutputDeviceFactory::AvailableDriversAsString() {
88	std::vector<String> drivers = AvailableDrivers();
89	String result;
90	std::vector<String>::iterator iter = drivers.begin();
91	for (; iter != drivers.end(); iter++) {
92	if (result != "") result += ",";
93	result += *iter;
94	}
95	return result;
96	}
97
98	std::map<String,DeviceCreationParameter*> AudioOutputDeviceFactory::GetAvailableDriverParameters(String DriverName) throw (LinuxSamplerException) {
99	if (!InnerFactories.count(DriverName)) throw LinuxSamplerException("There is no audio output driver '" + DriverName + "'.");
100	std::map<String,DeviceCreationParameter*> thisDeviceParams;
101	DeviceParameterFactory* pParamFactory = ParameterFactories[DriverName];
102	if (pParamFactory) {
103	thisDeviceParams = pParamFactory->CreateAllParams();
104	}
105	return thisDeviceParams;
106	}
107
108	DeviceCreationParameter* AudioOutputDeviceFactory::GetDriverParameter(String DriverName, String ParameterName) throw (LinuxSamplerException) {
109	std::map<String,DeviceCreationParameter*> parameters = GetAvailableDriverParameters(DriverName);
110	if (!parameters.count(ParameterName)) throw LinuxSamplerException("Audio output driver '" + DriverName + "' does not have a parameter '" + ParameterName + "'.");
111	return parameters[ParameterName];
112	}
113
114	String AudioOutputDeviceFactory::GetDriverDescription(String DriverName) throw (LinuxSamplerException) {
115	if (!InnerFactories.count(DriverName)) throw LinuxSamplerException("There is no audio output driver '" + DriverName + "'.");
116	return InnerFactories[DriverName]->Description();
117	}
118
119	String AudioOutputDeviceFactory::GetDriverVersion(String DriverName) throw (LinuxSamplerException) {
120	if (!InnerFactories.count(DriverName)) throw LinuxSamplerException("There is no audio output driver '" + DriverName + "'.");
121	return InnerFactories[DriverName]->Version();
122	}
123
124	} // namespace LinuxSampler