Joerg Mueller
986267300b
Deleting the old internal audaspace. Major changes from there are: - The whole library was refactored to use C++11. - Many stability and performance improvements. - Major Python API refactor: - Most requested: Play self generated sounds using numpy arrays. - For games: Sound list, random sounds and dynamic music. - Writing sounds to files. - Sequencing API. - Opening sound devices, eg. Jack. - Ability to choose different OpenAL devices in the user settings.
81 lines
1.8 KiB
C++
81 lines
1.8 KiB
C++
/*******************************************************************************
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* Copyright 2009-2016 Jörg Müller
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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******************************************************************************/
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#include "util/BufferReader.h"
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#include "util/Buffer.h"
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#include <cstring>
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AUD_NAMESPACE_BEGIN
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BufferReader::BufferReader(std::shared_ptr<Buffer> buffer,
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Specs specs) :
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m_position(0), m_buffer(buffer), m_specs(specs)
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{
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}
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bool BufferReader::isSeekable() const
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{
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return true;
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}
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void BufferReader::seek(int position)
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{
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m_position = position;
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}
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int BufferReader::getLength() const
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{
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return m_buffer->getSize() / AUD_SAMPLE_SIZE(m_specs);
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}
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int BufferReader::getPosition() const
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{
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return m_position;
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}
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Specs BufferReader::getSpecs() const
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{
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return m_specs;
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}
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void BufferReader::read(int& length, bool& eos, sample_t* buffer)
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{
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eos = false;
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int sample_size = AUD_SAMPLE_SIZE(m_specs);
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sample_t* buf = m_buffer->getBuffer() + m_position * m_specs.channels;
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// in case the end of the buffer is reached
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if(m_buffer->getSize() < (m_position + length) * sample_size)
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{
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length = m_buffer->getSize() / sample_size - m_position;
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eos = true;
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}
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if(length < 0)
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{
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length = 0;
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return;
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}
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m_position += length;
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std::memcpy(buffer, buf, length * sample_size);
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}
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AUD_NAMESPACE_END
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