mirror of
https://gitea.wildfiregames.com/0ad/0ad
synced 2026-06-16 13:23:56 -07:00
011ba8255e
Enables audio on OS X, refs #685, #931. Fixes music not playing after a game, refs #946. This was SVN commit r12428.
163 lines
3.3 KiB
C++
163 lines
3.3 KiB
C++
/* Copyright (C) 2012 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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#include "soundmanager/SoundManager.h"
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#include <wchar.h>
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#include <iostream>
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COggData::COggData()
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{
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m_OneShot = false;
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}
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COggData::~COggData()
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{
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alDeleteBuffers(m_BuffersUsed, m_Buffer);
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ov_clear(&m_vf);
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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::InitOggFile(const wchar_t* fileLoc)
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{
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int buffersToStart = g_SoundManager->GetBufferCount();
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char nameH[300];
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sprintf(nameH, "%ls", fileLoc);
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FILE* f = fopen(nameH, "rb");
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m_current_section = 0;
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int err = ov_open_callbacks(f, &m_vf, NULL, 0, OV_CALLBACKS_DEFAULT);
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if (err < 0)
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{
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fprintf(stderr,"Input does not appear to be an Ogg bitstream :%d :%d.\n", err, ferror(f));
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return false;
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}
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m_FileName = CStrW(fileLoc);
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m_FileFinished = false;
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SetFormatAndFreq((m_vf.vi->channels == 1)? AL_FORMAT_MONO16 : AL_FORMAT_STEREO16 , (ALsizei)m_vf.vi->rate);
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alGetError(); /* clear error */
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alGenBuffers(buffersToStart, m_Buffer);
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if(alGetError() != AL_NO_ERROR)
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{
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printf("- Error creating initial buffer !!\n");
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return false;
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}
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else
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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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}
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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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ov_time_seek(&m_vf, 0);
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m_current_section = 0;
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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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long bufferSize = g_SoundManager->GetBufferSize();
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char* pcmout = new char[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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char* readDest = pcmout;
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long totalRet = 0;
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while (totalRet < bufferSize)
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{
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long ret=ov_read(&m_vf,readDest, 4096,0,2,1, &m_current_section);
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if (ret == 0)
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{
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m_FileFinished=true;
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break;
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}
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else if (ret < 0)
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{
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/* error in the stream. Not a problem, just reporting it in
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case we (the app) cares. In this case, we don't. */
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}
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else
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{
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totalRet += ret;
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readDest += ret;
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}
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}
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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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