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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_SumReader.h"
#include "AUD_Buffer.h"
#include <cstring>
#define CC specs.channels + channel
AUD_SumReader::AUD_SumReader(AUD_IReader* reader) :
AUD_EffectReader(reader)
{
AUD_Specs specs = reader->getSpecs();
int samplesize = AUD_SAMPLE_SIZE(specs);
m_buffer = new AUD_Buffer(); AUD_NEW("buffer")
m_sums = new AUD_Buffer(samplesize); AUD_NEW("buffer")
memset(m_sums->getBuffer(), 0, samplesize);
}
AUD_SumReader::~AUD_SumReader()
{
delete m_buffer; AUD_DELETE("buffer")
delete m_sums; AUD_DELETE("buffer")
}
void AUD_SumReader::read(int & length, sample_t* & buffer)
{
sample_t* buf;
sample_t* sums;
sums = m_sums->getBuffer();
AUD_Specs specs = m_reader->getSpecs();
m_reader->read(length, buf);
if(m_buffer->getSize() < length * AUD_SAMPLE_SIZE(specs))
m_buffer->resize(length * AUD_SAMPLE_SIZE(specs));
buffer = m_buffer->getBuffer();
for(int channel = 0; channel < specs.channels; channel++)
for(int i = 0; i < length * specs.channels; i++)
buffer[i * CC] = sums[channel] = sums[channel] + buf[i * CC];
}
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