forked from bartvdbraak/blender
98 lines
2.3 KiB
C++
98 lines
2.3 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_VolumeReader.h"
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#include "AUD_Buffer.h"
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#include <cstring>
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AUD_VolumeReader::AUD_VolumeReader(AUD_IReader* reader, float volume) :
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AUD_EffectReader(reader),
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m_volume(volume)
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{
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int bigendian = 1;
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bigendian = (((char*)&bigendian)[0]) ? 0: 1; // 1 if Big Endian
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switch(m_reader->getSpecs().format)
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{
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case AUD_FORMAT_S16:
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m_adjust = AUD_volume_adjust<int16_t>;
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break;
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case AUD_FORMAT_S32:
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m_adjust = AUD_volume_adjust<int32_t>;
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break;
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case AUD_FORMAT_FLOAT32:
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m_adjust = AUD_volume_adjust<float>;
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break;
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case AUD_FORMAT_FLOAT64:
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m_adjust = AUD_volume_adjust<double>;
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break;
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case AUD_FORMAT_U8:
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m_adjust = AUD_volume_adjust_u8;
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break;
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case AUD_FORMAT_S24:
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m_adjust = bigendian ? AUD_volume_adjust_s24_be :
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AUD_volume_adjust_s24_le;
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break;
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default:
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delete m_reader;
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AUD_THROW(AUD_ERROR_READER);
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}
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m_buffer = new AUD_Buffer(); AUD_NEW("buffer")
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}
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AUD_VolumeReader::~AUD_VolumeReader()
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{
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delete m_buffer; AUD_DELETE("buffer")
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}
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bool AUD_VolumeReader::notify(AUD_Message &message)
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{
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if(message.type == AUD_MSG_VOLUME)
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{
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m_volume = message.volume;
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m_reader->notify(message);
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return true;
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}
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return m_reader->notify(message);
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}
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void AUD_VolumeReader::read(int & length, sample_t* & buffer)
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{
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sample_t* buf;
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AUD_Specs specs = m_reader->getSpecs();
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m_reader->read(length, buf);
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if(m_buffer->getSize() < length*AUD_SAMPLE_SIZE(specs))
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m_buffer->resize(length*AUD_SAMPLE_SIZE(specs));
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buffer = m_buffer->getBuffer();
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m_adjust(buffer, buf, length * specs.channels, m_volume);
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}
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