forked from bartvdbraak/blender
145 lines
3.2 KiB
C++
145 lines
3.2 KiB
C++
|
/*
|
||
|
* $Id$
|
||
|
*
|
||
|
* ***** 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_SuperposeReader.h"
|
||
|
#include "AUD_Buffer.h"
|
||
|
|
||
|
#include <cstring>
|
||
|
|
||
|
AUD_SuperposeReader::AUD_SuperposeReader(AUD_IReader* reader1, AUD_IReader* reader2) :
|
||
|
m_reader1(reader1), m_reader2(reader2)
|
||
|
{
|
||
|
try
|
||
|
{
|
||
|
if(!reader1)
|
||
|
AUD_THROW(AUD_ERROR_READER);
|
||
|
|
||
|
if(!reader2)
|
||
|
AUD_THROW(AUD_ERROR_READER);
|
||
|
|
||
|
AUD_Specs s1, s2;
|
||
|
s1 = reader1->getSpecs();
|
||
|
s2 = reader2->getSpecs();
|
||
|
if(memcmp(&s1, &s2, sizeof(AUD_Specs)) != 0)
|
||
|
AUD_THROW(AUD_ERROR_READER);
|
||
|
}
|
||
|
|
||
|
catch(AUD_Exception)
|
||
|
{
|
||
|
if(reader1)
|
||
|
{
|
||
|
delete reader1; AUD_DELETE("reader")
|
||
|
}
|
||
|
if(reader2)
|
||
|
{
|
||
|
delete reader2; AUD_DELETE("reader")
|
||
|
}
|
||
|
|
||
|
throw;
|
||
|
}
|
||
|
|
||
|
m_buffer = new AUD_Buffer(); AUD_NEW("buffer")
|
||
|
}
|
||
|
|
||
|
AUD_SuperposeReader::~AUD_SuperposeReader()
|
||
|
{
|
||
|
delete m_reader1; AUD_DELETE("reader")
|
||
|
delete m_reader2; AUD_DELETE("reader")
|
||
|
delete m_buffer; AUD_DELETE("buffer")
|
||
|
}
|
||
|
|
||
|
bool AUD_SuperposeReader::isSeekable()
|
||
|
{
|
||
|
return m_reader1->isSeekable() && m_reader2->isSeekable();
|
||
|
}
|
||
|
|
||
|
void AUD_SuperposeReader::seek(int position)
|
||
|
{
|
||
|
m_reader1->seek(position);
|
||
|
m_reader2->seek(position);
|
||
|
}
|
||
|
|
||
|
int AUD_SuperposeReader::getLength()
|
||
|
{
|
||
|
int len1 = m_reader1->getLength();
|
||
|
int len2 = m_reader2->getLength();
|
||
|
if((len1 < 0) || (len2 < 0))
|
||
|
return -1;
|
||
|
if(len1 < len2)
|
||
|
return len2;
|
||
|
return len1;
|
||
|
}
|
||
|
|
||
|
int AUD_SuperposeReader::getPosition()
|
||
|
{
|
||
|
int pos1 = m_reader1->getPosition();
|
||
|
int pos2 = m_reader2->getPosition();
|
||
|
return AUD_MAX(pos1, pos2);
|
||
|
}
|
||
|
|
||
|
AUD_Specs AUD_SuperposeReader::getSpecs()
|
||
|
{
|
||
|
return m_reader1->getSpecs();
|
||
|
}
|
||
|
|
||
|
AUD_ReaderType AUD_SuperposeReader::getType()
|
||
|
{
|
||
|
if(m_reader1->getType() == AUD_TYPE_BUFFER &&
|
||
|
m_reader2->getType() == AUD_TYPE_BUFFER)
|
||
|
return AUD_TYPE_BUFFER;
|
||
|
return AUD_TYPE_STREAM;
|
||
|
}
|
||
|
|
||
|
bool AUD_SuperposeReader::notify(AUD_Message &message)
|
||
|
{
|
||
|
return m_reader1->notify(message) | m_reader2->notify(message);
|
||
|
}
|
||
|
|
||
|
void AUD_SuperposeReader::read(int & length, sample_t* & buffer)
|
||
|
{
|
||
|
AUD_Specs specs = m_reader1->getSpecs();
|
||
|
int samplesize = AUD_SAMPLE_SIZE(specs);
|
||
|
|
||
|
if(m_buffer->getSize() < length * samplesize)
|
||
|
m_buffer->resize(length * samplesize);
|
||
|
buffer = m_buffer->getBuffer();
|
||
|
|
||
|
int len1 = length;
|
||
|
sample_t* buf;
|
||
|
m_reader1->read(len1, buf);
|
||
|
memcpy(buffer, buf, len1 * samplesize);
|
||
|
|
||
|
if(len1 < length)
|
||
|
memset(buffer + len1 * specs.channels, 0, (length - len1) * samplesize);
|
||
|
|
||
|
int len2 = length;
|
||
|
m_reader2->read(len2, buf);
|
||
|
|
||
|
for(int i = 0; i < len2 * specs.channels; i++)
|
||
|
buffer[i] += buf[i];
|
||
|
|
||
|
length = AUD_MAX(len1, len2);
|
||
|
}
|