FakeDriver.cpp

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/*
 * Hydrogen
 * Copyright(c) 2002-2008 by Alex >Comix< Cominu [comix@users.sourceforge.net]
 * Copyright(c) 2008-2024 The hydrogen development team [hydrogen-devel@lists.sourceforge.net]
 *
 * http://www.hydrogen-music.org
 *
 * 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, see https://www.gnu.org/licenses
 *
 */
 
#include <core/IO/FakeDriver.h>
#include <core/AudioEngine/AudioEngine.h>
#include <core/Hydrogen.h>
#include <core/Preferences/Preferences.h>
 
namespace H2Core
{
 
FakeDriver::FakeDriver( audioProcessCallback processCallback )
                : AudioOutput()
                , m_processCallback( processCallback )
                , m_pOut_L( nullptr )
                , m_pOut_R( nullptr )
                , m_nBufferSize( 0 )
                , m_nSampleRate( 44100 ) {
}
 
 
FakeDriver::~FakeDriver() {
}
 
 
int FakeDriver::init( unsigned nBufferSize )
{
        INFOLOG( QString( "Init, %1 samples" ).arg( nBufferSize ) );
 
        m_nBufferSize = nBufferSize;
        m_nSampleRate = Preferences::get_instance()->m_nSampleRate;
        m_pOut_L = new float[nBufferSize];
        m_pOut_R = new float[nBufferSize];
 
        return 0;
}
 
 
int FakeDriver::connect()
{
        INFOLOG( "connect" );
 
        // always rolling, no user interaction
        Hydrogen::get_instance()->getAudioEngine()->setNextState( AudioEngine::State::Playing );
 
        return 0;
}
 
 
void FakeDriver::disconnect()
{
        INFOLOG( "disconnect" );
 
        delete[] m_pOut_L;
        m_pOut_L = nullptr;
 
        delete[] m_pOut_R;
        m_pOut_R = nullptr;
}
 
 
unsigned FakeDriver::getSampleRate()
{
        return m_nSampleRate;
}
 
float* FakeDriver::getOut_L()
{
        return m_pOut_L;
}
 
 
float* FakeDriver::getOut_R()
{
        return m_pOut_R;
}
 
 
void FakeDriver::processCallback()
{
        while ( m_processCallback( m_nBufferSize, nullptr ) == 0 ) {
                // process...
        }
}
 
 
};