158 lines
3.2 KiB
C++
158 lines
3.2 KiB
C++
/* Copyright (C) 2015 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "precompiled.h"
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#include "OggData.h"
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#if CONFIG2_AUDIO
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#include "ps/CLogger.h"
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#include "ps/CLogger.h"
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#include "ps/Filesystem.h"
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#include "soundmanager/SoundManager.h"
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COggData::COggData()
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: m_Format(0), m_Frequency(0), m_OneShot(false), m_BuffersUsed(0)
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{
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}
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COggData::~COggData()
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{
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AL_CHECK;
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if (ogg)
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ogg->Close();
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AL_CHECK;
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if ( m_BuffersUsed > 0 )
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alDeleteBuffers(m_BuffersUsed, &m_Buffer[0]);
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AL_CHECK;
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m_BuffersUsed = 0;
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}
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void COggData::SetFormatAndFreq(int form, ALsizei freq)
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{
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m_Format = form;
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m_Frequency = freq;
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}
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bool COggData::IsStereo()
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{
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return m_Format == AL_FORMAT_STEREO16;
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}
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bool COggData::InitOggFile(const VfsPath& itemPath)
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{
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CSoundManager* sndManager = (CSoundManager*)g_SoundManager;
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if (!sndManager)
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return false;
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int buffersToStart = sndManager->GetBufferCount();
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if (OpenOggNonstream(g_VFS, itemPath, ogg) != INFO::OK)
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return false;
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m_FileFinished = false;
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SetFormatAndFreq(ogg->Format(), ogg->SamplingRate());
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SetFileName(itemPath);
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AL_CHECK;
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alGenBuffers(buffersToStart, m_Buffer);
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ALenum err = alGetError();
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if (err != AL_NO_ERROR)
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{
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LOGERROR("Failed to create initial buffer. OpenAL error: %s\n", alGetString(err));
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return false;
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}
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m_BuffersUsed = FetchDataIntoBuffer(buffersToStart, m_Buffer);
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if (m_FileFinished)
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{
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m_OneShot = true;
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if (m_BuffersUsed < buffersToStart)
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{
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alDeleteBuffers(buffersToStart - m_BuffersUsed, &m_Buffer[m_BuffersUsed]);
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}
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}
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AL_CHECK;
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return true;
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}
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ALsizei COggData::GetBufferCount()
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{
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return m_BuffersUsed;
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}
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bool COggData::IsFileFinished()
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{
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return m_FileFinished;
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}
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void COggData::ResetFile()
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{
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ogg->ResetFile();
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m_FileFinished = false;
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}
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bool COggData::IsOneShot()
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{
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return m_OneShot;
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}
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int COggData::FetchDataIntoBuffer(int count, ALuint* buffers)
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{
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CSoundManager* sndManager = (CSoundManager*)g_SoundManager;
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if (!sndManager)
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return 0;
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long bufferSize = sndManager->GetBufferSize();
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u8* pcmout = new u8[bufferSize + 5000];
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int buffersWritten = 0;
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for (int i = 0; i < count && !m_FileFinished; ++i)
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{
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memset(pcmout, 0, bufferSize + 5000);
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Status totalRet = ogg->GetNextChunk(pcmout, bufferSize);
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m_FileFinished = ogg->atFileEOF();
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if (totalRet > 0)
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{
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buffersWritten++;
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alBufferData(buffers[i], m_Format, pcmout, (ALsizei)totalRet, (int)m_Frequency);
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}
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}
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delete[] pcmout;
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return buffersWritten;
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}
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ALuint COggData::GetBuffer()
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{
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return m_Buffer[0];
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}
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ALuint* COggData::GetBufferPtr()
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{
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return m_Buffer;
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}
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#endif // CONFIG2_AUDIO
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