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/* Copyright (C) 2015 Wildfire Games.
* This file is part of 0 A.D.
*
* 0 A.D. 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 2 of the License, or
* (at your option) any later version.
*
* 0 A.D. 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 0 A.D. If not, see <http://www.gnu.org/licenses/>.
*/
#include "precompiled.h"
#include "OggData.h"
#if CONFIG2_AUDIO
#include "ps/CLogger.h"
#include "ps/CLogger.h"
#include "ps/Filesystem.h"
#include "soundmanager/SoundManager.h"
COggData::COggData()
: m_Format(0), m_Frequency(0), m_OneShot(false), m_BuffersUsed(0)
{
}
COggData::~COggData()
{
AL_CHECK;
if (ogg)
ogg->Close();
AL_CHECK;
if ( m_BuffersUsed > 0 )
alDeleteBuffers(m_BuffersUsed, &m_Buffer[0]);
AL_CHECK;
m_BuffersUsed = 0;
}
void COggData::SetFormatAndFreq(int form, ALsizei freq)
{
m_Format = form;
m_Frequency = freq;
}
bool COggData::IsStereo()
{
return m_Format == AL_FORMAT_STEREO16;
}
bool COggData::InitOggFile(const VfsPath& itemPath)
{
CSoundManager* sndManager = (CSoundManager*)g_SoundManager;
if (!sndManager)
return false;
int buffersToStart = sndManager->GetBufferCount();
if (OpenOggNonstream(g_VFS, itemPath, ogg) != INFO::OK)
return false;
m_FileFinished = false;
SetFormatAndFreq(ogg->Format(), ogg->SamplingRate());
SetFileName(itemPath);
AL_CHECK;
alGenBuffers(buffersToStart, m_Buffer);
ALenum err = alGetError();
if (err != AL_NO_ERROR)
{
LOGERROR("Failed to create initial buffer. OpenAL error: %s\n", alGetString(err));
return false;
}
m_BuffersUsed = FetchDataIntoBuffer(buffersToStart, m_Buffer);
if (m_FileFinished)
{
m_OneShot = true;
if (m_BuffersUsed < buffersToStart)
{
alDeleteBuffers(buffersToStart - m_BuffersUsed, &m_Buffer[m_BuffersUsed]);
}
}
AL_CHECK;
return true;
}
ALsizei COggData::GetBufferCount()
{
return m_BuffersUsed;
}
bool COggData::IsFileFinished()
{
return m_FileFinished;
}
void COggData::ResetFile()
{
ogg->ResetFile();
m_FileFinished = false;
}
bool COggData::IsOneShot()
{
return m_OneShot;
}
int COggData::FetchDataIntoBuffer(int count, ALuint* buffers)
{
CSoundManager* sndManager = (CSoundManager*)g_SoundManager;
if (!sndManager)
return 0;
long bufferSize = sndManager->GetBufferSize();
u8* pcmout = new u8[bufferSize + 5000];
int buffersWritten = 0;
for (int i = 0; i < count && !m_FileFinished; ++i)
{
memset(pcmout, 0, bufferSize + 5000);
Status totalRet = ogg->GetNextChunk(pcmout, bufferSize);
m_FileFinished = ogg->atFileEOF();
if (totalRet > 0)
{
buffersWritten++;
alBufferData(buffers[i], m_Format, pcmout, (ALsizei)totalRet, (int)m_Frequency);
}
}
delete[] pcmout;
return buffersWritten;
}
ALuint COggData::GetBuffer()
{
return m_Buffer[0];
}
ALuint* COggData::GetBufferPtr()
{
return m_Buffer;
}
#endif // CONFIG2_AUDIO
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