CDAFReader.cpp

/* Mednafen - Multi-system Emulator
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

// CDAFR_Open(), and CDAFReader, will NOT take "ownership" of the Stream object(IE it won't ever delete it).  Though it does assume it has exclusive access
// to it for as long as the CDAFReader object exists.

// Don't allow exceptions to propagate into the vorbis/musepack/etc. libraries, as it could easily leave the state of the library's decoder "object" in an
// inconsistent state, which would cause all sorts of unfun when we try to destroy it while handling the exception farther up.

#include "emuware/emuware.h"
#include "CDAFReader.h"
#include "CDAFReader_Vorbis.h"
#include "CDAFReader_MPC.h"

#ifdef HAVE_LIBSNDFILE
#include "CDAFReader_SF.h"
#endif

CDAFReader::CDAFReader() : LastReadPos(0)
{

}

CDAFReader::~CDAFReader()
{

}

CDAFReader* CDAFR_Null_Open(Stream* fp)
{
	return NULL;
}

CDAFReader *CDAFR_Open(Stream *fp)
{
 static CDAFReader* (* const OpenFuncs[])(Stream* fp) =
 {
#ifdef HAVE_MPC
  CDAFR_MPC_Open,
#endif

#ifdef HAVE_VORBIS
  CDAFR_Vorbis_Open,	// Must come before CDAFR_SF_Open
#endif

#ifdef HAVE_LIBSNDFILE
  CDAFR_SF_Open,
#endif

	CDAFR_Null_Open
 };

 for(int idx=0;idx<ARRAY_SIZE(OpenFuncs);idx++)
 {
	auto f = OpenFuncs[idx];
  try
  {
   fp->rewind();
   return f(fp);
  }
  catch(int i)
  {

  }
 }

 return(NULL);
}