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SND_SDLCDDevice.cpp

/*
 * $Id: SND_SDLCDDevice.cpp,v 1.1 2004/04/02 13:15:18 kester Exp $
 *
 * ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
 *
 * 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. The Blender
 * Foundation also sells licenses for use in proprietary software under
 * the Blender License.  See http://www.blender.org/BL/ for information
 * about this.
 *
 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): none yet.
 *
 * ***** END GPL/BL DUAL LICENSE BLOCK *****
 * SND_SDLCDDevice
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#ifdef WIN32
#pragma warning (disable:4786) // get rid of stupid stl-visual compiler debug warning
#endif //WIN32

#include "MT_Scalar.h"

#include "SND_SDLCDDevice.h"
#include "SoundDefines.h"

#include <SDL.h>

SND_SDLCDDevice::SND_SDLCDDevice() :
      m_cdrom(NULL),
      m_cdplaying(false),
      m_cdtrack(0),
      m_cdplaymode(SND_CD_TRACK),
      m_frame(0)
{
      init();
}

void SND_SDLCDDevice::init()
{
      if (SDL_InitSubSystem(SDL_INIT_CDROM))
      {
            fprintf(stderr, "Error initializing CDROM\n");
            return;
      }
      
      /* Check for CD drives */
      if(!SDL_CDNumDrives())
      {
            /* None found */
            fprintf(stderr, "No CDROM devices available\n");
            return;
      }

      /* Open the default drive */
      m_cdrom = SDL_CDOpen(0);

      /* Did if open? Check if cdrom is NULL */
      if(!m_cdrom)
      {
            fprintf(stderr, "Couldn't open drive: %s", SDL_GetError());
            return;
      }
}

SND_SDLCDDevice::~SND_SDLCDDevice()
{
      StopCD();
      SDL_CDClose(m_cdrom);
}

void SND_SDLCDDevice::NextFrame()
{
      m_frame++;
      m_frame &= 127;
      
      if (!m_frame && m_cdrom && m_cdplaying && SDL_CDStatus(m_cdrom) == CD_STOPPED)
      {
            switch (m_cdplaymode)
            {
                  case SND_CD_ALL:
                        if (m_cdtrack < m_cdrom->numtracks)
                              PlayCD(m_cdtrack + 1);
                        else
                              m_cdplaying = false;
                        break;
                  default:
                  case SND_CD_TRACK:
                        m_cdplaying = false;
                        break;
                  case SND_CD_TRACKLOOP:
                        PlayCD(m_cdtrack);
                        break;
            }
      
      }
}
      
void SND_SDLCDDevice::PlayCD(int track)
{
      if ( m_cdrom && CD_INDRIVE(SDL_CDStatus(m_cdrom)) ) {
            SDL_CDPlayTracks(m_cdrom, track-1, 0, track, 0);
            m_cdplaying = true;
            m_cdtrack = track;
      }
}


void SND_SDLCDDevice::PauseCD(bool pause)
{
      if (!m_cdrom)
            return;
            
      if (pause)
            SDL_CDPause(m_cdrom);
      else
            SDL_CDResume(m_cdrom);
}

void SND_SDLCDDevice::StopCD()
{
      if (m_cdrom)
            SDL_CDStop(m_cdrom);
      m_cdplaying = false;
}

void SND_SDLCDDevice::SetCDPlaymode(int playmode)
{
      m_cdplaymode = playmode;
}

void SND_SDLCDDevice::SetCDGain(MT_Scalar gain)
{

}

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