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	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			#include "AudioOutputDeviceFactory.h"
24
25	schoenebeck	288	// just to avoid linker problems
26			#include "AudioOutputDeviceAlsa.h"
27			#include "AudioOutputDeviceJack.h"
28
29	schoenebeck	200	namespace LinuxSampler {
30
31			std::map<String, AudioOutputDeviceFactory::InnerFactory*> AudioOutputDeviceFactory::InnerFactories;
32			std::map<String, DeviceParameterFactory*> AudioOutputDeviceFactory::ParameterFactories;
33
34	schoenebeck	288	// 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	schoenebeck	200	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