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/*
* $Id$
*
* ***** BEGIN LGPL LICENSE BLOCK *****
*
* Copyright 2009 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* AudaSpace is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* AudaSpace 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
*
* ***** END LGPL LICENSE BLOCK *****
*/
#include "AUD_SDLMixer.h"
#include "AUD_SDLMixerFactory.h"
#include <SDL.h>
AUD_SDLMixer::AUD_SDLMixer()
{
m_factory = NULL;
}
AUD_SDLMixer::~AUD_SDLMixer()
{
if(m_factory)
{
delete m_factory; AUD_DELETE("factory")
}
}
AUD_IReader* AUD_SDLMixer::prepare(AUD_IReader* reader)
{
m_factory->setReader(reader);
return m_factory->createReader();
}
void AUD_SDLMixer::setSpecs(AUD_Specs specs)
{
m_samplesize = AUD_SAMPLE_SIZE(specs);
if(m_factory)
{
delete m_factory; AUD_DELETE("factory")
}
m_factory = new AUD_SDLMixerFactory(specs); AUD_NEW("factory")
}
void AUD_SDLMixer::add(sample_t* buffer, AUD_Specs specs, int length,
float volume)
{
AUD_SDLMixerBuffer buf;
buf.buffer = buffer;
buf.length = length;
buf.volume = volume;
m_buffers.push_back(buf);
}
void AUD_SDLMixer::superpose(sample_t* buffer, int length, float volume)
{
AUD_SDLMixerBuffer buf;
while(!m_buffers.empty())
{
buf = m_buffers.front();
m_buffers.pop_front();
SDL_MixAudio((Uint8*)buffer,
(Uint8*)buf.buffer,
buf.length * m_samplesize,
(int)(SDL_MIX_MAXVOLUME * volume * buf.volume));
}
}
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