static void ReadM3U(std::vector<std::string> &file_list, std::string path, unsigned depth = 0)
{
    std::vector<std::string> ret;
    FileWrapper m3u_file(path.c_str(), FileWrapper::MODE_READ, _("M3U CD Set"));
    std::string dir_path;
    char linebuf[2048];

    MDFN_GetFilePathComponents(path, &dir_path);

    while(m3u_file.get_line(linebuf, sizeof(linebuf)))
    {
        std::string efp;

        if(linebuf[0] == '#') continue;
        MDFN_rtrim(linebuf);
        if(linebuf[0] == 0) continue;

        efp = MDFN_EvalFIP(dir_path, std::string(linebuf));

        if(efp.size() >= 4 && efp.substr(efp.size() - 4) == ".m3u")
        {
            if(efp == path)
                throw(MDFN_Error(0, _("M3U at \"%s\" references self."), efp.c_str()));

            if(depth == 99)
                throw(MDFN_Error(0, _("M3U load recursion too deep!")));

            ReadM3U(file_list, efp, depth++);
        }
        else
            file_list.push_back(efp);
    }
}
MDFNGI *MDFNI_LoadCD(const char *force_module, const char *devicename)
{
    uint8 LayoutMD5[16];

    MDFNI_CloseGame();

    LastSoundMultiplier = 1;

    MDFN_printf(_("Loading %s...\n\n"), devicename ? devicename : _("PHYSICAL CD"));

    try
    {
        if(devicename && strlen(devicename) > 4 && !strcasecmp(devicename + strlen(devicename) - 4, ".m3u"))
        {
            std::vector<std::string> file_list;

            ReadM3U(file_list, devicename);

            for(unsigned i = 0; i < file_list.size(); i++)
            {
                CDInterfaces.push_back(new CDIF(file_list[i].c_str()));
            }

            GetFileBase(devicename);
        }
        else
        {
            CDInterfaces.push_back(new CDIF(devicename));
            if(CDInterfaces[0]->IsPhysical())
            {
                GetFileBase("cdrom");
            }
            else
                GetFileBase(devicename);
        }
    }
    catch(std::exception &e)
    {
        MDFND_PrintError(e.what());
        MDFN_PrintError(_("Error opening CD."));
        return(0);
    }

//
// Print out a track list for all discs.
//
    MDFN_indent(1);
    for(unsigned i = 0; i < CDInterfaces.size(); i++)
    {
        CDUtility::TOC toc;

        CDInterfaces[i]->ReadTOC(&toc);

        MDFN_printf(_("CD %d Layout:\n"), i + 1);
        MDFN_indent(1);

        for(int32 track = toc.first_track; track <= toc.last_track; track++)
        {
            MDFN_printf(_("Track %2d, LBA: %6d  %s\n"), track, toc.tracks[track].lba, (toc.tracks[track].control & 0x4) ? "DATA" : "AUDIO");
        }

        MDFN_printf("Leadout: %6d\n", toc.tracks[100].lba);
        MDFN_indent(-1);
        MDFN_printf("\n");
    }
    MDFN_indent(-1);
//
//



// Calculate layout MD5.  The system emulation LoadCD() code is free to ignore this value and calculate
// its own, or to use it to look up a game in its database.
    {
        md5_context layout_md5;

        layout_md5.starts();

        for(unsigned i = 0; i < CDInterfaces.size(); i++)
        {
            CD_TOC toc;

            CDInterfaces[i]->ReadTOC(&toc);

            layout_md5.update_u32_as_lsb(toc.first_track);
            layout_md5.update_u32_as_lsb(toc.last_track);
            layout_md5.update_u32_as_lsb(toc.tracks[100].lba);

            for(uint32 track = toc.first_track; track <= toc.last_track; track++)
            {
                layout_md5.update_u32_as_lsb(toc.tracks[track].lba);
                layout_md5.update_u32_as_lsb(toc.tracks[track].control & 0x4);
            }
        }

        layout_md5.finish(LayoutMD5);
    }

    MDFNGameInfo = NULL;

    for(std::list<MDFNGI *>::iterator it = MDFNSystemsPrio.begin(); it != MDFNSystemsPrio.end(); it++)  //_unsigned int x = 0; x < MDFNSystems.size(); x++)
    {
        char tmpstr[256];
        trio_snprintf(tmpstr, 256, "%s.enable", (*it)->shortname);

        if(force_module)
        {
            if(!strcmp(force_module, (*it)->shortname))
            {
                MDFNGameInfo = *it;
                break;
            }
        }
        else
        {
            // Is module enabled?
            if(!MDFN_GetSettingB(tmpstr))
                continue;

            if(!(*it)->LoadCD || !(*it)->TestMagicCD)
                continue;

            if((*it)->TestMagicCD(&CDInterfaces))
            {
                MDFNGameInfo = *it;
                break;
            }
        }
    }

    if(!MDFNGameInfo)
    {
        if(force_module)
        {
            MDFN_PrintError(_("Unrecognized system \"%s\"!"), force_module);
            return(0);
        }

        // This code path should never be taken, thanks to "cdplay"
        MDFN_PrintError(_("Could not find a system that supports this CD."));
        return(0);
    }

    // This if statement will be true if force_module references a system without CDROM support.
    if(!MDFNGameInfo->LoadCD)
    {
        MDFN_PrintError(_("Specified system \"%s\" doesn't support CDs!"), force_module);
        return(0);
    }

    MDFN_printf(_("Using module: %s(%s)\n\n"), MDFNGameInfo->shortname, MDFNGameInfo->fullname);


// TODO: include module name in hash
    memcpy(MDFNGameInfo->MD5, LayoutMD5, 16);

    if(!(MDFNGameInfo->LoadCD(&CDInterfaces)))
    {
        for(unsigned i = 0; i < CDInterfaces.size(); i++)
            delete CDInterfaces[i];
        CDInterfaces.clear();

        MDFNGameInfo = NULL;
        return(0);
    }

    MDFNI_SetLayerEnableMask(~0ULL);

#ifdef WANT_DEBUGGER
    MDFNDBG_PostGameLoad();
#endif

    MDFNSS_CheckStates();
    MDFNMOV_CheckMovies();

    MDFN_ResetMessages();   // Save state, status messages, etc.

    TBlur_Init();

    MDFN_StateEvilBegin();


    if(MDFNGameInfo->GameType != GMT_PLAYER)
    {
        MDFN_LoadGameCheats(NULL);
        MDFNMP_InstallReadPatches();
    }

    last_sound_rate = -1;
    memset(&last_pixel_format, 0, sizeof(MDFN_PixelFormat));

    return(MDFNGameInfo);
}
Example #3
0
MDFNGI *MDFNI_LoadCD(const char *force_module, const char *devicename)
{
 uint8 LayoutMD5[16];
#ifdef NEED_CD
 static std::vector<CDIF *> CDInterfaces;	// FIXME: Cleanup on error out.
#endif

 MDFN_printf(_("Loading %s...\n\n"), devicename ? devicename : _("PHYSICAL CD"));

 try
 {
  if(devicename && strlen(devicename) > 4 && !strcasecmp(devicename + strlen(devicename) - 4, ".m3u"))
  {
   std::vector<std::string> file_list;

   ReadM3U(file_list, devicename);

   for(unsigned i = 0; i < file_list.size(); i++)
   {
    CDInterfaces.push_back(CDIF_Open(file_list[i].c_str(), false /* cdimage_memcache */));
   }
  }
  else
  {
   CDInterfaces.push_back(CDIF_Open(devicename, false /* cdimage_memcache */));
  }
 }
 catch(std::exception &e)
 {
  MDFND_PrintError(e.what());
  MDFN_PrintError(_("Error opening CD."));
  return(0);
 }

 //
 // Print out a track list for all discs.
 //
 MDFN_indent(1);
 for(unsigned i = 0; i < CDInterfaces.size(); i++)
 {
  CDUtility::TOC toc;

  CDInterfaces[i]->ReadTOC(&toc);

  MDFN_printf(_("CD %d Layout:\n"), i + 1);
  MDFN_indent(1);

  for(int32 track = toc.first_track; track <= toc.last_track; track++)
  {
   MDFN_printf(_("Track %2d, LBA: %6d  %s\n"), track, toc.tracks[track].lba, (toc.tracks[track].control & 0x4) ? "DATA" : "AUDIO");
  }

  MDFN_printf("Leadout: %6d\n", toc.tracks[100].lba);
  MDFN_indent(-1);
  MDFN_printf("\n");
 }
 MDFN_indent(-1);

 // Calculate layout MD5.  The system emulation LoadCD() code is free to ignore this value and calculate
 // its own, or to use it to look up a game in its database.
 {
  md5_context layout_md5;

  layout_md5.starts();

  for(unsigned i = 0; i < CDInterfaces.size(); i++)
  {
   CD_TOC toc;

   CDInterfaces[i]->ReadTOC(&toc);

   layout_md5.update_u32_as_lsb(toc.first_track);
   layout_md5.update_u32_as_lsb(toc.last_track);
   layout_md5.update_u32_as_lsb(toc.tracks[100].lba);

   for(uint32 track = toc.first_track; track <= toc.last_track; track++)
   {
    layout_md5.update_u32_as_lsb(toc.tracks[track].lba);
    layout_md5.update_u32_as_lsb(toc.tracks[track].control & 0x4);
   }
  }

  layout_md5.finish(LayoutMD5);
 }

 // This if statement will be true if force_module references a system without CDROM support.
 if(!MDFNGameInfo->LoadCD)
 {
    MDFN_PrintError(_("Specified system \"%s\" doesn't support CDs!"), force_module);
    return(0);
 }

 MDFN_printf(_("Using module: %s(%s)\n\n"), MDFNGameInfo->shortname, MDFNGameInfo->fullname);

 // TODO: include module name in hash
 memcpy(MDFNGameInfo->MD5, LayoutMD5, 16);

 if(!(MDFNGameInfo->LoadCD(&CDInterfaces)))
 {
  for(unsigned i = 0; i < CDInterfaces.size(); i++)
   delete CDInterfaces[i];
  CDInterfaces.clear();

  MDFNGameInfo = NULL;
  return(0);
 }

 //MDFNI_SetLayerEnableMask(~0ULL);

 #ifdef WANT_DEBUGGER
 MDFNDBG_PostGameLoad(); 
 #endif

 MDFN_ResetMessages();   // Save state, status messages, etc.

// MDFN_LoadGameCheats(NULL);
 MDFNMP_InstallReadPatches();

 return(MDFNGameInfo);
}