Line data    Source code

       1             : /* Copyright (C) 2015 Wildfire Games.
       2             :  * This file is part of 0 A.D.
       3             :  *
       4             :  * 0 A.D. is free software: you can redistribute it and/or modify
       5             :  * it under the terms of the GNU General Public License as published by
       6             :  * the Free Software Foundation, either version 2 of the License, or
       7             :  * (at your option) any later version.
       8             :  *
       9             :  * 0 A.D. is distributed in the hope that it will be useful,
      10             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      11             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      12             :  * GNU General Public License for more details.
      13             :  *
      14             :  * You should have received a copy of the GNU General Public License
      15             :  * along with 0 A.D.  If not, see <http://www.gnu.org/licenses/>.
      16             :  */
      17             : 
      18             : #include "precompiled.h"
      19             : 
      20             : #include "OggData.h"
      21             : 
      22             : #if CONFIG2_AUDIO
      23             : 
      24             : #include "ps/CLogger.h"
      25             : #include "ps/CLogger.h"
      26             : #include "ps/Filesystem.h"
      27             : #include "soundmanager/SoundManager.h"
      28             : 
      29           0 : COggData::COggData()
      30           0 :     : m_Format(0), m_Frequency(0), m_OneShot(false), m_BuffersUsed(0)
      31             : {
      32           0 : }
      33             : 
      34           0 : COggData::~COggData()
      35             : {
      36           0 :     AL_CHECK;
      37           0 :     if (ogg)
      38           0 :         ogg->Close();
      39             : 
      40           0 :     AL_CHECK;
      41           0 :     if ( m_BuffersUsed > 0 )
      42           0 :         alDeleteBuffers(m_BuffersUsed, &m_Buffer[0]);
      43             : 
      44           0 :     AL_CHECK;
      45           0 :     m_BuffersUsed = 0;
      46           0 : }
      47             : 
      48           0 : void COggData::SetFormatAndFreq(int form, ALsizei freq)
      49             : {
      50           0 :     m_Format = form;
      51           0 :     m_Frequency = freq;
      52           0 : }
      53             : 
      54           0 : bool COggData::IsStereo()
      55             : {
      56           0 :     return m_Format == AL_FORMAT_STEREO16;
      57             : }
      58             : 
      59           0 : bool COggData::InitOggFile(const VfsPath& itemPath)
      60             : {
      61           0 :     CSoundManager* sndManager = (CSoundManager*)g_SoundManager;
      62           0 :     if (!sndManager)
      63           0 :         return false;
      64             : 
      65           0 :     int buffersToStart = sndManager->GetBufferCount();
      66           0 :     if (OpenOggNonstream(g_VFS, itemPath, ogg) != INFO::OK)
      67           0 :         return false;
      68             : 
      69           0 :     m_FileFinished = false;
      70             : 
      71           0 :     SetFormatAndFreq(ogg->Format(), ogg->SamplingRate());
      72           0 :     SetFileName(itemPath);
      73             : 
      74           0 :     AL_CHECK;
      75             : 
      76           0 :     alGenBuffers(buffersToStart, m_Buffer);
      77             : 
      78           0 :     ALenum err = alGetError();
      79           0 :     if (err != AL_NO_ERROR)
      80             :     {
      81           0 :         LOGERROR("Failed to create initial buffer. OpenAL error: %s\n", alGetString(err));
      82           0 :         return false;
      83             :     }
      84             : 
      85           0 :     m_BuffersUsed = FetchDataIntoBuffer(buffersToStart, m_Buffer);
      86           0 :     if (m_FileFinished)
      87             :     {
      88           0 :         m_OneShot = true;
      89           0 :         if (m_BuffersUsed < buffersToStart)
      90             :         {
      91           0 :             alDeleteBuffers(buffersToStart - m_BuffersUsed, &m_Buffer[m_BuffersUsed]);
      92             :         }
      93             :     }
      94           0 :     AL_CHECK;
      95             : 
      96           0 :     return true;
      97             : }
      98             : 
      99           0 : ALsizei COggData::GetBufferCount()
     100             : {
     101           0 :     return m_BuffersUsed;
     102             : }
     103             : 
     104           0 : bool COggData::IsFileFinished()
     105             : {
     106           0 :     return m_FileFinished;
     107             : }
     108             : 
     109           0 : void COggData::ResetFile()
     110             : {
     111           0 :     ogg->ResetFile();
     112           0 :     m_FileFinished = false;
     113           0 : }
     114             : 
     115           0 : bool COggData::IsOneShot()
     116             : {
     117           0 :     return m_OneShot;
     118             : }
     119             : 
     120           0 : int COggData::FetchDataIntoBuffer(int count, ALuint* buffers)
     121             : {
     122           0 :     CSoundManager* sndManager = (CSoundManager*)g_SoundManager;
     123           0 :     if (!sndManager)
     124           0 :         return 0;
     125             : 
     126           0 :     long bufferSize = sndManager->GetBufferSize();
     127             : 
     128           0 :     u8* pcmout = new u8[bufferSize + 5000];
     129           0 :     int buffersWritten = 0;
     130             : 
     131           0 :     for (int i = 0; i < count && !m_FileFinished; ++i)
     132             :     {
     133           0 :         memset(pcmout, 0, bufferSize + 5000);
     134           0 :         Status totalRet = ogg->GetNextChunk(pcmout, bufferSize);
     135           0 :         m_FileFinished = ogg->atFileEOF();
     136           0 :         if (totalRet > 0)
     137             :         {
     138           0 :             buffersWritten++;
     139           0 :             alBufferData(buffers[i], m_Format, pcmout, (ALsizei)totalRet, (int)m_Frequency);
     140             :         }
     141             :     }
     142           0 :     delete[] pcmout;
     143           0 :     return buffersWritten;
     144             : }
     145             : 
     146             : 
     147           0 : ALuint COggData::GetBuffer()
     148             : {
     149           0 :     return m_Buffer[0];
     150             : }
     151             : 
     152           0 : ALuint* COggData::GetBufferPtr()
     153             : {
     154           0 :     return m_Buffer;
     155           3 : }
     156             : 
     157             : #endif // CONFIG2_AUDIO