MDFNGI *MDFNI_LoadCD(const char *force_module, const char *devicename, const bool is_device)
{
uint8 LayoutMD5[16];
MDFNI_CloseGame();
LastSoundMultiplier = 1;
if(is_device)
{
if(devicename)
MDFN_printf(_("Loading from CD drive device %s...\n\n"), devicename);
else
MDFN_printf(_("Load from default CD drive device...\n\n"));
}
else
{
assert(devicename != NULL);
MDFN_printf(_("Loading %s...\n\n"), devicename);
}
try
{
const bool image_memcache = MDFN_GetSettingB("cd.image_memcache");
if(is_device)
{
CDInterfaces.push_back(CDIF_Open(devicename, true, image_memcache));
GetFileBase("cdrom");
}
else
{
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, image_memcache));
}
}
else
{
CDInterfaces.push_back(CDIF_Open(devicename, false, image_memcache));
}
GetFileBase(devicename);
}
}
catch(std::exception &e)
{
MDFN_PrintError(_("Error opening CD: %s"), e.what());
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);
MDFN_printf(_("Disc Type: 0x%02x\n"), toc.disc_type);
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 %s\n"), toc.tracks[100].lba, (toc.tracks[100].control & 0x4) ? "DATA" : "AUDIO");
if((toc.tracks[toc.last_track].control & 0x4) != (toc.tracks[100].control & 0x4))
MDFN_printf(_("WARNING: DATA/AUDIO TYPE MISMATCH BETWEEN LAST TRACK AND LEADOUT AREA."));
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);
std::string modoverride_settings_file_path = MDFN_GetBaseDirectory() + std::string(PSS) + std::string(MDFNGameInfo->shortname) + std::string(".cfg");
if(!MDFN_LoadSettings(modoverride_settings_file_path.c_str(), true))
{
for(unsigned i = 0; i < CDInterfaces.size(); i++)
delete CDInterfaces[i];
CDInterfaces.clear();
MDFNGameInfo = NULL;
return(0);
}
if(!(MDFNGameInfo->LoadCD(&CDInterfaces)))
{
for(unsigned i = 0; i < CDInterfaces.size(); i++)
delete CDInterfaces[i];
CDInterfaces.clear();
MDFNGameInfo = NULL;
return(0);
}
if(!MDFNGameInfo->name && !is_device)
MakeGIName(MDFNGameInfo, devicename);
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);
}
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);
}
