view JackDevice/DeviceManagerJack.cpp @ 1:b5bcad8e7803

renamed teensy files
added DeviceManageJack.cpp

/*
 Copyright (c) 2015, The Cinder Project

 This code is intended to be used with the Cinder C++ library, http://libcinder.org

 Redistribution and use in source and binary forms, with or without modification, are permitted provided that
 the following conditions are met:

    * Redistributions of source code must retain the above copyright notice, this list of conditions and
	
    the following disclaimer.
    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and
	the following disclaimer in the documentation and/or other materials provided with the distribution.

 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
 WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
 TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 POSSIBILITY OF SUCH DAMAGE.
*/

#include "cinder/audio/linux/DeviceManagerJack.h"
#include "cinder/audio/Exception.h"
#include <jack/jack.h>


namespace cinder { namespace audio { namespace linux {

DeviceManagerJack::DeviceManagerJack() 
{

    mDevices.push_back( addDevice("JackIn") );
    mDevices.push_back( addDevice("JackOut") );

    jack_status_t status;
    
	jack_client_t *client = jack_client_open ("device info", JackNullOption, &status, NULL);
    if( client == NULL){

        std::string msg = "jack_client_open() failed. "; 
        if(status & JackServerFailed) 
            msg += "Unable to connect to Jack server";

        throw cinder::audio::AudioContextExc(msg);
    }

    mSampleRate = jack_get_sample_rate( client );
    mBufferSize = jack_get_buffer_size( client );

    jack_client_close( client );
}

DeviceManagerJack::~DeviceManagerJack()
{
	
}

const std::vector<DeviceRef>& DeviceManagerJack::getDevices()
{
   return mDevices;
}

DeviceRef DeviceManagerJack::getDefaultOutput()
{
    return mDevices[1];
}

DeviceRef DeviceManagerJack::getDefaultInput()
{
    return mDevices[0];
}

std::string DeviceManagerJack::getName( const DeviceRef &device )
{
    return device->getKey();
}

size_t DeviceManagerJack::getNumInputChannels( const DeviceRef &device )
{
    if( device->getKey() == mDevices[0]->getKey() )
        return 2;
    else
        return 0;
}

size_t DeviceManagerJack::getNumOutputChannels( const DeviceRef &device )
{
    if( device->getKey() == mDevices[1]->getKey() )
        return 2;
    else
        return 0;
}

size_t DeviceManagerJack::getSampleRate( const DeviceRef &device )
{
    return mSampleRate;
}

size_t DeviceManagerJack::getFramesPerBlock( const DeviceRef &device )
{
    return mBufferSize;
}


void DeviceManagerJack::setSampleRate( const DeviceRef &device, size_t sampleRate )
{
    throw "setSampleRate not supported";
}

void DeviceManagerJack::setFramesPerBlock( const DeviceRef &device, size_t framesPerBlock )
{
    throw "setFramesPerBlock not supported";
}


//! Returns the hardware's actual frames per block, which might not be a power of two.
//        size_t getFramesPerBlockHardware( const DeviceRef &device );
//

size_t DeviceManagerJack::getFramesPerBlockHardware( const DeviceRef &device )
{
    return mBufferSize;
}






} } } // namespace cinder::audio::linux