126 lines
2.7 KiB
C++
126 lines
2.7 KiB
C++
/*
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* $Id$
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*
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* ***** BEGIN LGPL LICENSE BLOCK *****
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*
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* Copyright 2009 Jörg Hermann Müller
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*
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* This file is part of AudaSpace.
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*
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* AudaSpace is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* AudaSpace is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
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*
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* ***** END LGPL LICENSE BLOCK *****
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*/
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#include "AUD_ChannelMapperFactory.h"
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#include "AUD_ChannelMapperReader.h"
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#include <cstring>
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AUD_ChannelMapperFactory::AUD_ChannelMapperFactory(AUD_IReader* reader,
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AUD_Specs specs) :
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AUD_MixerFactory(reader, specs)
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{
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memset(m_mapping, 0, sizeof(m_mapping));
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}
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AUD_ChannelMapperFactory::AUD_ChannelMapperFactory(AUD_IFactory* factory,
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AUD_Specs specs) :
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AUD_MixerFactory(factory, specs)
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{
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memset(m_mapping, 0, sizeof(m_mapping));
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}
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AUD_ChannelMapperFactory::AUD_ChannelMapperFactory(AUD_Specs specs) :
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AUD_MixerFactory(specs)
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{
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memset(m_mapping, 0, sizeof(m_mapping));
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}
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AUD_ChannelMapperFactory::~AUD_ChannelMapperFactory()
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{
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for(int i = 1; i < 10; i++)
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deleteMapping(i);
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}
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float** AUD_ChannelMapperFactory::getMapping(int ic)
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{
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ic--;
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if(ic > 8 || ic < 0)
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return 0;
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if(m_mapping[ic])
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{
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int channels = -1;
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while(m_mapping[ic][++channels] != 0);
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if(channels != m_specs.channels)
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deleteMapping(ic+1);
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}
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if(!m_mapping[ic])
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{
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int channels = m_specs.channels;
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m_mapping[ic] = new float*[channels+1]; AUD_NEW("mapping")
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m_mapping[ic][channels] = 0;
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for(int i = 0; i < channels; i++)
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{
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m_mapping[ic][i] = new float[ic+1]; AUD_NEW("mapping")
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for(int j = 0; j <= ic; j++)
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m_mapping[ic][i][j] = ((i == j) || (channels == 1) ||
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(ic == 0)) ? 1.0f : 0.0f;
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}
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}
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return m_mapping[ic];
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}
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void AUD_ChannelMapperFactory::deleteMapping(int ic)
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{
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ic--;
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if(ic > 8 || ic < 0)
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return;
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if(m_mapping[ic])
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{
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for(int i = 0; 1; i++)
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{
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if(m_mapping[ic][i] != 0)
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{
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delete[] m_mapping[ic][i]; AUD_DELETE("mapping")
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}
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else
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break;
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}
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delete[] m_mapping[ic]; AUD_DELETE("mapping")
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m_mapping[ic] = 0;
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}
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}
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AUD_IReader* AUD_ChannelMapperFactory::createReader()
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{
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AUD_IReader* reader = getReader();
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if(reader != 0)
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{
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int ic = reader->getSpecs().channels;
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reader = new AUD_ChannelMapperReader(reader, getMapping(ic));
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AUD_NEW("reader")
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}
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return reader;
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}
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