WavEmitter.cpp

/*
 *  Copyright (C) 2004-2005 Savoir-Faire Linux inc.
 *  Author: Jean-Philippe Barrette-LaPierre
 *             <jean-philippe.barrette-lapierre@savoirfairelinux.com>
 *
 *  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 2 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, write to the Free Software
 *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <AL/alut.h>
#include <iostream>

#include "WavEmitter.hpp"
#include "Source.hpp"

SFLAudio::WavEmitter::WavEmitter(char *filename) 
  : mData(0)
  , mSize(0)
{
  ALenum format;
  ALsizei freq;
  ALboolean loop;

  // Load test.wav
  alutLoadWAVFile(filename, &format,&mData,&mSize,&freq,&loop);
  ALenum error = alGetError();
  if (error != AL_NO_ERROR) {
    std::cerr << "OpenAL: loadWAVFile : " << alGetString(error);
    mData = 0;
  }
  else {
    setFrequency(freq);
    setFormat(format);
  }
}

void
SFLAudio::WavEmitter::play()
{
  Source *source = getSource();
  if(source && mData) {
    source->play(mData, mSize);

    // Unload test.wav
    alutUnloadWAV(getFormat(), mData, mSize, getFrequency());
    ALenum error = alGetError();
    if (error != AL_NO_ERROR) {
      std::cerr << "OpenAL: unloadWAV : " << alGetString(error);
    }
  }
}