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"

// just to avoid linker problems
#include "AudioOutputDeviceAlsa.h"
#include "AudioOutputDeviceJack.h"

namespace LinuxSampler {

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

    // just a little hack to avoid linker problems
    static int ___init___foo___() {
        #if HAVE_ALSA
        AudioOutputDeviceAlsa::Name().c_str();
        #endif // HAVE_ALSA
        #if HAVE_JACK
        AudioOutputDeviceJack::Name().c_str();
        #endif // HAVE_JACK
        return 0;
    }
    static int ___foo___ = ___init___foo___();

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