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/*******************************************************************************
* Copyright 2009-2016 Jörg Müller
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
#include "util/Buffer.h"
#include <algorithm>
#include <cstring>
#include <cstdlib>
#define ALIGNMENT 32
#define ALIGN(a) (a + ALIGNMENT - ((long long)a & (ALIGNMENT-1)))
AUD_NAMESPACE_BEGIN
Buffer::Buffer(int size)
{
m_size = size;
m_buffer = (data_t*) std::malloc(size + ALIGNMENT);
}
Buffer::~Buffer()
{
std::free(m_buffer);
}
sample_t* Buffer::getBuffer() const
{
return (sample_t*) ALIGN(m_buffer);
}
int Buffer::getSize() const
{
return m_size;
}
void Buffer::resize(int size, bool keep)
{
if(keep)
{
data_t* buffer = (data_t*) std::malloc(size + ALIGNMENT);
std::memcpy(ALIGN(buffer), ALIGN(m_buffer), std::min(size, m_size));
std::free(m_buffer);
m_buffer = buffer;
}
else
m_buffer = (data_t*) std::realloc(m_buffer, size + ALIGNMENT);
m_size = size;
}
void Buffer::assureSize(int size, bool keep)
{
if(m_size < size)
resize(size, keep);
}
AUD_NAMESPACE_END
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