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// * This file is part of the COLOBOT source code
// * Copyright (C) 2012, Polish Portal of Colobot (PPC)
// *
// * This program is free software: you can redistribute it and/or modify
// * it under the terms of the GNU General Public License as published by
// * the Free Software Foundation, either version 3 of the License, or
// * (at your option) any later version.
// *
// * This program 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 General Public License for more details.
// *
// * You should have received a copy of the GNU General Public License
// * along with this program. If not, see http://www.gnu.org/licenses/.
#include "sound/oalsound/buffer.h"
#include <cstring>
Buffer::Buffer()
{
m_loaded = false;
m_duration = 0.0f;
}
Buffer::~Buffer()
{
if (m_loaded)
{
alDeleteBuffers(1, &m_buffer);
if (alCheck())
GetLogger()->Debug("Failed to unload buffer. Code %d\n", alGetCode());
}
}
bool Buffer::LoadFromFile(std::string filename, Sound sound)
{
m_sound = sound;
GetLogger()->Debug("Loading audio file: %s\n", filename.c_str());
SF_INFO fileInfo;
memset(&fileInfo, 0, sizeof(SF_INFO));
SNDFILE *file = sf_open(filename.c_str(), SFM_READ, &fileInfo);
GetLogger()->Trace(" channels %d\n", fileInfo.channels);
GetLogger()->Trace(" format %d\n", fileInfo.format);
GetLogger()->Trace(" frames %d\n", fileInfo.frames);
GetLogger()->Trace(" samplerate %d\n", fileInfo.samplerate);
GetLogger()->Trace(" sections %d\n", fileInfo.sections);
if (!file)
{
GetLogger()->Warn("Could not load file. Reason: %s\n", sf_strerror(file));
m_loaded = false;
return false;
}
alGenBuffers(1, &m_buffer);
if (!m_buffer)
{
GetLogger()->Warn("Could not create audio buffer\n");
m_loaded = false;
sf_close(file);
return false;
}
// read chunks of 4096 samples
std::vector<uint16_t> data;
std::array<int16_t, 4096> buffer;
data.reserve(fileInfo.frames);
size_t read = 0;
while ((read = sf_read_short(file, buffer.data(), buffer.size())) != 0)
{
data.insert(data.end(), buffer.begin(), buffer.begin() + read);
}
sf_close(file);
alBufferData(m_buffer, fileInfo.channels == 1 ? AL_FORMAT_MONO16 : AL_FORMAT_STEREO16, &data.front(), data.size() * sizeof(uint16_t), fileInfo.samplerate);
m_duration = static_cast<float>(fileInfo.frames) / fileInfo.samplerate;
m_loaded = true;
return true;
}
Sound Buffer::GetSoundType()
{
return m_sound;
}
ALuint Buffer::GetBuffer()
{
return m_buffer;
}
bool Buffer::IsLoaded()
{
return m_loaded;
}
float Buffer::GetDuration()
{
return m_duration;
}
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