BizHawk/mednafen/src/mednafen.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
 */

#include        "mednafen.h"

#include        <string.h>
#include	<stdarg.h>
#include	<errno.h>
#include	<sys/types.h>
#include	<sys/stat.h>
//#include	<unistd.h> //zero 07-feb-2012
#include	<trio/trio.h>
#include	<list>
#include	<algorithm>

#include	"netplay.h"
#include	"netplay-driver.h"
#include	"general.h"

#include	"state.h"
#include	"movie.h"
#include	"video.h"
#include	"file.h"
#include	"sound/WAVRecord.h"
#include	"cdrom/cdromif.h"
#include	"mempatcher.h"
#include	"compress/minilzo.h"
#include	"tests.h"
#include	"video/tblur.h"
#include	"qtrecord.h"
#include	"md5.h"
#include	"clamp.h"

#ifdef WANT_RESAMPLER
#include	"Fir_Resampler.h"
#endif

#include	"string/escape.h"

#include	"cdrom/CDUtility.h"

//helping out MSVC
#ifndef S_ISREG
#define S_ISREG(mode)  (((mode) & S_IFMT) == S_IFREG)
#endif

static const char *CSD_forcemono = gettext_noop("Force monophonic sound output.");
static const char *CSD_enable = gettext_noop("Enable (automatic) usage of this module.");
static const char *CSD_tblur = gettext_noop("Enable video temporal blur(50/50 previous/current frame by default).");
static const char *CSD_tblur_accum = gettext_noop("Accumulate color data rather than discarding it.");
static const char *CSD_tblur_accum_amount = gettext_noop("Blur amount in accumulation mode, specified in percentage of accumulation buffer to mix with the current frame.");

static MDFNSetting_EnumList CompressorList[] =
{
 // TODO: Actual associated numerical values are not currently used.
 { "minilzo", -1, "MiniLZO" },
 { "quicklz", -1, "QuickLZ" },
 { "blz", -1, "BLZ" },

 { NULL, 0 },
};

#ifdef WANT_AVDUMP
static MDFNSetting_EnumList VCodec_List[] =
{
 { "raw", (int)QTRecord::VCODEC_RAW, "Raw",
	gettext_noop("A fast codec, computationally, but will cause enormous file size and may exceed your storage medium's sustained write rate.") },

 { "cscd", (int)QTRecord::VCODEC_CSCD, "CamStudio Screen Codec",
	gettext_noop("A good balance between performance and compression ratio.") },

 { "png", (int)QTRecord::VCODEC_PNG, "PNG",
	gettext_noop("Has a better compression ratio than \"cscd\", but is much more CPU intensive.  Use for compatibility with official QuickTime in cases where you have insufficient disk space for \"raw\".") },

 { NULL, 0 },
};
#endif //WANT_AVDUMP

static const char *fname_extra = gettext_noop("See fname_format.txt for more information.  Edit at your own risk.");

static MDFNSetting MednafenSettings[] =
{
  { "srwcompressor", MDFNSF_NOFLAGS, gettext_noop("Compressor to use with state rewinding"), NULL, MDFNST_ENUM, "quicklz", NULL, NULL, NULL, NULL, CompressorList },

  { "srwframes", MDFNSF_NOFLAGS, gettext_noop("Number of frames to keep states for when state rewinding is enabled."), 
	gettext_noop("WARNING: Setting this to a large value may cause excessive RAM usage in some circumstances, such as with games that stream large volumes of data off of CDs."), MDFNST_UINT, "600", "10", "99999" },

  { "filesys.untrusted_fip_check", MDFNSF_NOFLAGS, gettext_noop("Enable untrusted file-inclusion path security check."),
	gettext_noop("When this setting is set to \"1\", the default, paths to files referenced from files like CUE sheets and PSF rips are checked for certain characters that can be used in directory traversal, and if found, loading is aborted.  Set it to \"0\" if you want to allow constructs like absolute paths in CUE sheets, but only if you understand the security implications of doing so(see \"Security Issues\" section in the documentation)."), MDFNST_BOOL, "1" },

  { "filesys.path_snap", MDFNSF_NOFLAGS, gettext_noop("Path to directory for screen snapshots."), NULL, MDFNST_STRING, "snaps" },
  { "filesys.path_sav", MDFNSF_NOFLAGS, gettext_noop("Path to directory for save games and nonvolatile memory."), gettext_noop("WARNING: Do not set this path to a directory that contains Famicom Disk System disk images, or you will corrupt them when you load an FDS game and exit Mednafen."), MDFNST_STRING, "sav" },
  { "filesys.path_state", MDFNSF_NOFLAGS, gettext_noop("Path to directory for save states."), NULL, MDFNST_STRING, "mcs" },
  { "filesys.path_movie", MDFNSF_NOFLAGS, gettext_noop("Path to directory for movies."), NULL, MDFNST_STRING, "mcm" },
  { "filesys.path_cheat", MDFNSF_NOFLAGS, gettext_noop("Path to directory for cheats."), NULL, MDFNST_STRING, "cheats" },
  { "filesys.path_palette", MDFNSF_NOFLAGS, gettext_noop("Path to directory for custom palettes."), NULL, MDFNST_STRING, "palettes" },
  { "filesys.path_firmware", MDFNSF_NOFLAGS, gettext_noop("Path to directory for firmware."), NULL, MDFNST_STRING, "firmware" },

  { "filesys.fname_movie", MDFNSF_NOFLAGS, gettext_noop("Format string for movie filename."), fname_extra, MDFNST_STRING, "%f.%M%p.%x" },
  { "filesys.fname_state", MDFNSF_NOFLAGS, gettext_noop("Format string for state filename."), fname_extra, MDFNST_STRING, "%f.%M%X" /*"%F.%M%p.%x"*/ },
  { "filesys.fname_sav", MDFNSF_NOFLAGS, gettext_noop("Format string for save games filename."), gettext_noop("WARNING: %x should always be included, otherwise you run the risk of overwriting save data for games that create multiple save data files.\n\nSee fname_format.txt for more information.  Edit at your own risk."), MDFNST_STRING, "%F.%M%x" },
  { "filesys.fname_snap", MDFNSF_NOFLAGS, gettext_noop("Format string for screen snapshot filenames."), gettext_noop("WARNING: %x or %p should always be included, otherwise there will be a conflict between the numeric counter text file and the image data file.\n\nSee fname_format.txt for more information.  Edit at your own risk."), MDFNST_STRING, "%f-%p.%x" },

  { "filesys.disablesavegz", MDFNSF_NOFLAGS, gettext_noop("Disable gzip compression when saving save states and backup memory."), NULL, MDFNST_BOOL, "0" },


  { "qtrecord.w_double_threshold", MDFNSF_NOFLAGS, gettext_noop("Double the raw image's width if it's below this threshold."), NULL, MDFNST_UINT, "384", "0", "1073741824" },
  { "qtrecord.h_double_threshold", MDFNSF_NOFLAGS, gettext_noop("Double the raw image's height if it's below this threshold."), NULL, MDFNST_UINT, "256", "0", "1073741824" },

#ifdef WANT_AVDUMP
  { "qtrecord.vcodec", MDFNSF_NOFLAGS, gettext_noop("Video codec to use."), NULL, MDFNST_ENUM, "cscd", NULL, NULL, NULL, NULL, VCodec_List },
#endif
  { NULL }
};

static MDFNSetting RenamedSettings[] =
{
 { "path_snap", MDFNSF_NOFLAGS, NULL, NULL, MDFNST_ALIAS  , 	"filesys.path_snap"	},
 { "path_sav", MDFNSF_NOFLAGS, NULL, NULL, MDFNST_ALIAS  , 	"filesys.path_sav"	},
 { "path_state", MDFNSF_NOFLAGS, NULL, NULL, MDFNST_ALIAS  ,	"filesys.path_state"	},
 { "path_movie", MDFNSF_NOFLAGS, NULL, NULL, MDFNST_ALIAS  , 	"filesys.path_movie"	},
 { "path_cheat", MDFNSF_NOFLAGS, NULL, NULL, MDFNST_ALIAS  , 	"filesys.path_cheat"	},
 { "path_palette", MDFNSF_NOFLAGS, NULL, NULL, MDFNST_ALIAS  , 	"filesys.path_palette"	},
 { "path_firmware", MDFNSF_NOFLAGS, NULL, NULL, MDFNST_ALIAS  , "filesys.path_firmware"	},

 { "sounddriver", MDFNSF_NOFLAGS, NULL, NULL, MDFNST_ALIAS  , "sound.driver"      },
 { "sounddevice", MDFNSF_NOFLAGS, NULL, NULL, MDFNST_ALIAS  , "sound.device"      },
 { "soundrate", MDFNSF_NOFLAGS, NULL, NULL, MDFNST_ALIAS    , "sound.rate"        },
 { "soundvol", MDFNSF_NOFLAGS, NULL, NULL, MDFNST_ALIAS     , "sound.volume"      },
 { "soundbufsize", MDFNSF_NOFLAGS, NULL, NULL, MDFNST_ALIAS , "sound.buffer_time" },

 { "nethost", MDFNSF_NOFLAGS, NULL, NULL, MDFNST_ALIAS         , "netplay.host"   },
 { "netport", MDFNSF_NOFLAGS, NULL, NULL, MDFNST_ALIAS         , "netplay.port"   },
 { "netpassword", MDFNSF_NOFLAGS, NULL, NULL, MDFNST_ALIAS     , "netplay.password"},
 { "netlocalplayers", MDFNSF_NOFLAGS, NULL, NULL, MDFNST_ALIAS , "netplay.localplayers" },
 { "netnick", MDFNSF_NOFLAGS, NULL, NULL, MDFNST_ALIAS         , "netplay.nick"   },
 { "netgamekey", MDFNSF_NOFLAGS, NULL, NULL, MDFNST_ALIAS      , "netplay.gamekey"        },
 { "netsmallfont", MDFNSF_NOFLAGS, NULL, NULL, MDFNST_ALIAS    , "netplay.smallfont" },

 { "frameskip", MDFNSF_NOFLAGS, NULL, NULL, MDFNST_ALIAS       , "video.frameskip" },
 { "vdriver", MDFNSF_NOFLAGS, NULL, NULL, MDFNST_ALIAS         , "video.driver" },
 { "glvsync", MDFNSF_NOFLAGS, NULL, NULL, MDFNST_ALIAS         , "video.glvsync" },
 { "fs", MDFNSF_NOFLAGS, NULL, NULL, MDFNST_ALIAS              , "video.fs" },

 { "autofirefreq", MDFNSF_NOFLAGS, NULL, NULL, MDFNST_ALIAS    , "input.autofirefreq" },
 { "analogthreshold", MDFNSF_NOFLAGS, NULL, NULL, MDFNST_ALIAS , "input.joystick.axis_threshold" },
 { "ckdelay", MDFNSF_NOFLAGS, NULL, NULL, MDFNST_ALIAS         , "input.ckdelay" },

 { NULL }
};

static char *PortDeviceCache[16];
static void *PortDataCache[16];
static uint32 PortDataLenCache[16];

MDFNGI *MDFNGameInfo = NULL;

#ifdef WANT_AVDUMP
static QTRecord *qtrecorder = NULL;
static WAVRecord *wavrecorder = NULL;
#endif
static double LastSoundMultiplier;

static bool FFDiscard = FALSE; // TODO:  Setting to discard sound samples instead of increasing pitch

static MDFN_PixelFormat last_pixel_format;
static double last_sound_rate;

#ifdef WANT_DEINTERLACER
#include	"video/Deinterlacer.h"
static bool PrevInterlaced;
static Deinterlacer deint;
#endif

static std::vector<int16> SoundBufPristine;

#ifdef WANT_CDIF
static std::vector<CDIF *> CDInterfaces;	// FIXME: Cleanup on error out.
#endif

#ifdef WANT_AVDUMP
bool MDFNI_StartWAVRecord(const char *path, double SoundRate)
{
 try
 {
  wavrecorder = new WAVRecord(path, SoundRate, MDFNGameInfo->soundchan);
 }
 catch(std::exception &e)
 {
  MDFND_PrintError(e.what());
  return(false);
 }

 return(true);
}

bool MDFNI_StartAVRecord(const char *path, double SoundRate)
{
 try
 {
  QTRecord::VideoSpec spec;

  memset(&spec, 0, sizeof(spec));

  spec.SoundRate = SoundRate;
  spec.SoundChan = MDFNGameInfo->soundchan;
  spec.VideoWidth = MDFNGameInfo->lcm_width;
  spec.VideoHeight = MDFNGameInfo->lcm_height;
  spec.VideoCodec = MDFN_GetSettingI("qtrecord.vcodec");

  if(spec.VideoWidth < MDFN_GetSettingUI("qtrecord.w_double_threshold"))
   spec.VideoWidth *= 2;

  if(spec.VideoHeight < MDFN_GetSettingUI("qtrecord.h_double_threshold"))
   spec.VideoHeight *= 2;


  spec.AspectXAdjust = ((double)MDFNGameInfo->nominal_width * 2) / spec.VideoWidth;
  spec.AspectYAdjust = ((double)MDFNGameInfo->nominal_height * 2) / spec.VideoHeight;

  MDFN_printf("\n");
  MDFN_printf(_("Starting QuickTime recording to file \"%s\":\n"), path);
  MDFN_indent(1);
  MDFN_printf(_("Video width: %u\n"), spec.VideoWidth);
  MDFN_printf(_("Video height: %u\n"), spec.VideoHeight);
  MDFN_printf(_("Video codec: %s\n"), MDFN_GetSettingS("qtrecord.vcodec").c_str());
  MDFN_printf(_("Sound rate: %u\n"), spec.SoundRate);
  MDFN_printf(_("Sound channels: %u\n"), spec.SoundChan);
  MDFN_indent(-1);
  MDFN_printf("\n");

  qtrecorder = new QTRecord(path, spec);
 }
 catch(std::exception &e)
 {
  MDFND_PrintError(e.what());
  return(false);
 }
 return(true);
}

void MDFNI_StopAVRecord(void)
{
 if(qtrecorder)
 {
  delete qtrecorder;
  qtrecorder = NULL;
 }
}

void MDFNI_StopWAVRecord(void)
{
 if(wavrecorder)
 {
  delete wavrecorder;
  wavrecorder = NULL;
 }
}
#endif //WANT_AVDUMP

void MDFNI_CloseGame(void)
{
 if(MDFNGameInfo)
 {
#ifdef WANT_NETPLAY
  if(MDFNnetplay)
   MDFNI_NetplayStop();
#endif

#ifdef WANT_MOVIE
  MDFNMOV_Stop();
#endif

#ifdef WANT_CHEATS
  if(MDFNGameInfo->GameType != GMT_PLAYER)
   MDFN_FlushGameCheats(0);
#endif

  MDFNGameInfo->CloseGame();
  if(MDFNGameInfo->name)
  {
   free(MDFNGameInfo->name);
   MDFNGameInfo->name=0;
  }
  MDFNMP_Kill();

  MDFNGameInfo = NULL;

#ifdef WANT_REWIND
  MDFN_StateEvilEnd();
#endif

#ifdef WANT_CDIF
  for(unsigned i = 0; i < CDInterfaces.size(); i++)
   delete CDInterfaces[i];
  CDInterfaces.clear();
#endif

 }
 TBlur_Kill();

 #ifdef WANT_DEBUGGER
 MDFNDBG_Kill();
 #endif

 for(unsigned int x = 0; x < sizeof(PortDeviceCache) / sizeof(char *); x++)
 {
  if(PortDeviceCache[x])
  {
   free(PortDeviceCache[x]);
   PortDeviceCache[x] = NULL;
  }
 }

 memset(PortDataCache, 0, sizeof(PortDataCache));
 memset(PortDataLenCache, 0, sizeof(PortDataLenCache));
 memset(PortDeviceCache, 0, sizeof(PortDeviceCache));
}

//zero 07-feb-2012 - no netplay
//int MDFNI_NetplayStart(uint32 local_players, uint32 netmerge, const std::string &nickname, const std::string &game_key, const std::string &connect_password)
//{
// return(NetplayStart((const char**)PortDeviceCache, PortDataLenCache, local_players, netmerge, nickname, game_key, connect_password));
//}


#ifdef WANT_NES_EMU
extern MDFNGI EmulatedNES;
#endif

#ifdef WANT_SNES_EMU
extern MDFNGI EmulatedSNES;
#endif

#ifdef WANT_GBA_EMU
extern MDFNGI EmulatedGBA;
#endif

#ifdef WANT_GB_EMU
extern MDFNGI EmulatedGB;
#endif

#ifdef WANT_LYNX_EMU
extern MDFNGI EmulatedLynx;
#endif

#ifdef WANT_MD_EMU
extern MDFNGI EmulatedMD;
#endif

#ifdef WANT_NGP_EMU
extern MDFNGI EmulatedNGP;
#endif

#ifdef WANT_PCE_EMU
extern MDFNGI EmulatedPCE;
#endif

#ifdef WANT_PCE_FAST_EMU
extern MDFNGI EmulatedPCE_Fast;
#endif

#ifdef WANT_PCFX_EMU
extern MDFNGI EmulatedPCFX;
#endif

#ifdef WANT_PSX_EMU
extern MDFNGI EmulatedPSX;
#endif

#ifdef WANT_VB_EMU
extern MDFNGI EmulatedVB;
#endif

#ifdef WANT_WSWAN_EMU
extern MDFNGI EmulatedWSwan;
#endif

#ifdef WANT_SMS_EMU
extern MDFNGI EmulatedSMS, EmulatedGG;
#endif

#ifdef WANT_CDPLAY_EMU
extern MDFNGI EmulatedCDPlay;
#endif

std::vector<MDFNGI *> MDFNSystems;
static std::list<MDFNGI *> MDFNSystemsPrio;

bool MDFNSystemsPrio_CompareFunc(MDFNGI *first, MDFNGI *second)
{
 if(first->ModulePriority > second->ModulePriority)
  return(true);

 return(false);
}

static void AddSystem(MDFNGI *system)
{
 MDFNSystems.push_back(system);
}


bool CDIF_DumpCD(const char *fn);

void MDFNI_DumpModulesDef(const char *fn)
{
 FILE *fp = fopen(fn, "wb");

 for(unsigned int i = 0; i < MDFNSystems.size(); i++)
 {
  fprintf(fp, "%s\n", MDFNSystems[i]->shortname);
  fprintf(fp, "%s\n", MDFNSystems[i]->fullname);
  fprintf(fp, "%d\n", MDFNSystems[i]->nominal_width);
  fprintf(fp, "%d\n", MDFNSystems[i]->nominal_height);
 }


 fclose(fp);
}

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);
 }
}

// TODO: LoadCommon()

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++)
   {
#ifdef WANT_CDIF_MT
    CDInterfaces.push_back(new CDIF_MT(file_list[i].c_str()));
#else
    CDInterfaces.push_back(new CDIF_ST(file_list[i].c_str()));
#endif
   }

   GetFileBase(devicename);
  }
  else
  {
#ifdef WANT_CDIF_MT
   CDInterfaces.push_back(new CDIF_MT(devicename));
#else
   CDInterfaces.push_back(new CDIF_ST(devicename));
#endif
   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

#ifndef HEADLESS
 MDFNSS_CheckStates();
 MDFNMOV_CheckMovies();
 MDFN_ResetMessages();   // Save state, status messages, etc.
 MDFN_StateEvilBegin(); //rewind
#endif


 TBlur_Init();

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

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

 return(MDFNGameInfo);
}

#ifdef WANT_IPS
// Return FALSE on fatal error(IPS file found but couldn't be applied),
// or TRUE on success(IPS patching succeeded, or IPS file not found).
static bool LoadIPS(MDFNFILE &GameFile, const char *path)
{
 FILE *IPSFile;

 MDFN_printf(_("Applying IPS file \"%s\"...\n"), path);

 IPSFile = fopen(path, "rb");
 if(!IPSFile)
 {
  ErrnoHolder ene(errno);

  MDFN_indent(1);
  MDFN_printf(_("Failed: %s\n"), ene.StrError());
  MDFN_indent(-1);

  if(ene.Errno() == ENOENT)
   return(1);
  else
  {
   MDFN_PrintError(_("Error opening IPS file: %s\n"), ene.StrError());
   return(0);
  }  
 }

 if(!GameFile.ApplyIPS(IPSFile))
 {
  fclose(IPSFile);
  return(0);
 }
 fclose(IPSFile);

 return(1);
}
#endif WANT_IPS


MDFNGI *MDFNI_LoadGame(const char *force_module, const char *name)
{
        MDFNFILE GameFile;
	struct stat stat_buf;
	std::vector<FileExtensionSpecStruct> valid_iae;

#ifdef WANT_CDIF
	if(strlen(name) > 4 && (!strcasecmp(name + strlen(name) - 4, ".cue") || !strcasecmp(name + strlen(name) - 4, ".toc") || !strcasecmp(name + strlen(name) - 4, ".m3u")))
	{
	 return(MDFNI_LoadCD(force_module, name));
	}
	
	if(!stat(name, &stat_buf) && !S_ISREG(stat_buf.st_mode))
	{
	 return(MDFNI_LoadCD(force_module, name));
	}
#endif

	MDFNI_CloseGame();

	LastSoundMultiplier = 1;

	MDFNGameInfo = NULL;

	MDFN_printf(_("Loading %s...\n"),name);

	MDFN_indent(1);

        GetFileBase(name);

	// Construct a NULL-delimited list of known file extensions for MDFN_fopen()
	for(unsigned int i = 0; i < MDFNSystems.size(); i++)
	{
	 const FileExtensionSpecStruct *curexts = MDFNSystems[i]->FileExtensions;

	 // If we're forcing a module, only look for extensions corresponding to that module
	 if(force_module && strcmp(MDFNSystems[i]->shortname, force_module))
	  continue;

	 if(curexts)	
 	  while(curexts->extension && curexts->description)
	  {
	   valid_iae.push_back(*curexts);
           curexts++;
 	  }
	}
	{
	 FileExtensionSpecStruct tmpext = { NULL, NULL };
	 valid_iae.push_back(tmpext);
	}

	if(!GameFile.Open(name, &valid_iae[0], _("game")))
        {
	 MDFNGameInfo = NULL;
	 return 0;
	}

#ifdef WANT_IPS
	if(!LoadIPS(GameFile, MDFN_MakeFName(MDFNMKF_IPS, 0, 0).c_str()))
	{
	 MDFNGameInfo = NULL;
         GameFile.Close();
         return(0);
	}
#endif

	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))
		 {
			 if(!(*it)->Load)
			 {
				 GameFile.Close();

				#ifdef WANT_CDIF
				 if((*it)->LoadCD)
					 MDFN_PrintError(_("Specified system only supports CD(physical, or image files, such as *.cue and *.toc) loading."));
				 else
				#endif
					 MDFN_PrintError(_("Specified system does not support normal file loading."));
				 MDFN_indent(-1);
				 MDFNGameInfo = NULL;
				 return 0;
			 }
			 MDFNGameInfo = *it;
			 break;
		 }
	 }
	 else
	 {
	  // Is module enabled?
	  if(!MDFN_GetSettingB(tmpstr))
	   continue; 

	  if(!(*it)->Load || !(*it)->TestMagic)
	   continue;

	  if((*it)->TestMagic(name, &GameFile))
	  {
	   MDFNGameInfo = *it;
	   break;
	  }
	 }
	}

        if(!MDFNGameInfo)
        {
	 GameFile.Close();

	 if(force_module)
          MDFN_PrintError(_("Unrecognized system \"%s\"!"), force_module);
	 else
          MDFN_PrintError(_("Unrecognized file format.  Sorry."));

         MDFN_indent(-1);
         MDFNGameInfo = NULL;
         return 0;
        }

	MDFN_printf(_("Using module: %s(%s)\n\n"), MDFNGameInfo->shortname, MDFNGameInfo->fullname);
	MDFN_indent(1);

	assert(MDFNGameInfo->soundchan != 0);

        MDFNGameInfo->soundrate = 0;
        MDFNGameInfo->name = NULL;
        MDFNGameInfo->rotated = 0;


	//
	// Load per-game settings
	//
	// Maybe we should make a "pgcfg" subdir, and automatically load all files in it?
#if 0
	{
	 char hash_string[n + 1];
	 const char *section_names[3] = { MDFNGameInfo->shortname, hash_string, NULL };
	//asdfasdfMDFN_LoadSettings(std::string(basedir) + std::string(PSS) + std::string("pergame.cfg");
	}
#endif
	// End load per-game settings
	//

        if(MDFNGameInfo->Load(name, &GameFile) <= 0)
	{
         GameFile.Close();
         MDFN_indent(-2);
         MDFNGameInfo = NULL;
         return(0);
        }

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

	MDFNI_SetLayerEnableMask(~0ULL);

	#ifdef WANT_DEBUGGER
	MDFNDBG_PostGameLoad();
	#endif

#ifndef HEADLESS
	MDFNSS_CheckStates();
#endif

#ifdef WANT_MOVIE
	MDFNMOV_CheckMovies();
#endif

#ifdef WANT_SOFTGUI
	MDFN_ResetMessages();	// Save state, status messages, etc.
#endif

	MDFN_indent(-2);

	if(!MDFNGameInfo->name)
        {
         unsigned int x;
         char *tmp;

         MDFNGameInfo->name = (UTF8 *)strdup(GetFNComponent(name));

         for(x=0;x<strlen((char *)MDFNGameInfo->name);x++)
         {
          if(MDFNGameInfo->name[x] == '_')
           MDFNGameInfo->name[x] = ' ';
         }
         if((tmp = strrchr((char *)MDFNGameInfo->name, '.')))
          *tmp = 0;
        }


#ifdef NEED_DEINTERLACER
   PrevInterlaced = false;
   deint.ClearState();
#endif

	TBlur_Init();

#ifdef WANT_REWIND
        MDFN_StateEvilBegin();
#endif


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

        return(MDFNGameInfo);
}

static void BuildDynamicSetting(MDFNSetting *setting, const char *system_name, const char *name, uint32 flags, const char *description, MDFNSettingType type,
        const char *default_value, const char *minimum = NULL, const char *maximum = NULL,
        bool (*validate_func)(const char *name, const char *value) = NULL, void (*ChangeNotification)(const char *name) = NULL)
{
 char setting_name[256];

 memset(setting, 0, sizeof(MDFNSetting));

 trio_snprintf(setting_name, 256, "%s.%s", system_name, name);

 setting->name = strdup(setting_name);
 setting->description = description;
 setting->type = type;
 setting->flags = flags;
 setting->default_value = default_value;
 setting->minimum = minimum;
 setting->maximum = maximum;
 setting->validate_func = validate_func;
 setting->ChangeNotification = ChangeNotification;
}

std::vector<std::string> string_to_vecstrlist(const std::string &str_str)
{
 std::vector<std::string> ret;
 const char *str = str_str.c_str();

 bool in_quote = FALSE;
 const char *quote_begin = NULL;
 char last_char = 0;

 while(*str || in_quote)
 {
  char c;

  if(*str)
   c = *str;
  else		// If the string has ended and we're still in a quote, get out of it!
  {
   c = '"';
   last_char = 0;
  }

  if(last_char != '\\')
  {
   if(c == '"')
   {
    if(in_quote)
    {
     int64 str_length = str - quote_begin;
     char *tmp_str = new char[str_length]; //zero 07-feb-2012 - remove dynamic stack buffer

     memcpy(tmp_str, quote_begin, str_length);
  
     ret.push_back(std::string(tmp_str));

     quote_begin = NULL;
     in_quote = FALSE;
     delete[] tmp_str; //zero 07-feb-2012 - remove dynamic stack buffer
    }
    else
    {
     in_quote = TRUE;
     quote_begin = str + 1;
    }
   }
  }

  last_char = c;

  if(*str)
   str++;
 }


 return(ret);
}

std::string vecstrlist_to_string(const std::vector<std::string> &vslist)
{
 std::string ret;

 for(uint32 i = 0; i < vslist.size(); i++)
 {
  char *tmp_str = escape_string(vslist[i].c_str());

  ret += "\"";
 
  ret += std::string(tmp_str);
 
  ret += "\" ";

  free(tmp_str);
 }
 return(ret);
}


bool MDFNI_InitializeModules(const std::vector<MDFNGI *> &ExternalSystems)
{
 static MDFNGI *InternalSystems[] =
 {
  #ifdef WANT_NES_EMU
  &EmulatedNES,
  #endif

  #ifdef WANT_SNES_EMU
  &EmulatedSNES,
  #endif

  #ifdef WANT_GB_EMU
  &EmulatedGB,
  #endif

  #ifdef WANT_GBA_EMU
  &EmulatedGBA,
  #endif

  #ifdef WANT_PCE_EMU
  &EmulatedPCE,
  #endif

  #ifdef WANT_PCE_FAST_EMU
  &EmulatedPCE_Fast,
  #endif

  #ifdef WANT_LYNX_EMU
  &EmulatedLynx,
  #endif

  #ifdef WANT_MD_EMU
  &EmulatedMD,
  #endif

  #ifdef WANT_PCFX_EMU
  &EmulatedPCFX,
  #endif

  #ifdef WANT_NGP_EMU
  &EmulatedNGP,
  #endif

  #ifdef WANT_PSX_EMU
  &EmulatedPSX,
  #endif

  #ifdef WANT_VB_EMU
  &EmulatedVB,
  #endif

  #ifdef WANT_WSWAN_EMU
  &EmulatedWSwan,
  #endif

  #ifdef WANT_SMS_EMU
  &EmulatedSMS,
  &EmulatedGG,
  #endif

	#ifdef WANT_CDPLAY_EMU
  &EmulatedCDPlay
	#endif
 };
 std::string i_modules_string, e_modules_string;

 for(unsigned int i = 0; i < sizeof(InternalSystems) / sizeof(MDFNGI *); i++)
 {
  AddSystem(InternalSystems[i]);
  if(i)
   i_modules_string += " ";
  i_modules_string += std::string(InternalSystems[i]->shortname);
 }

 for(unsigned int i = 0; i < ExternalSystems.size(); i++)
 {
  AddSystem(ExternalSystems[i]);
  if(i)
   i_modules_string += " ";
  e_modules_string += std::string(ExternalSystems[i]->shortname);
 }

 MDFNI_printf(_("Internal emulation modules: %s\n"), i_modules_string.c_str());
 MDFNI_printf(_("External emulation modules: %s\n"), e_modules_string.c_str());


 for(unsigned int i = 0; i < MDFNSystems.size(); i++)
  MDFNSystemsPrio.push_back(MDFNSystems[i]);

 MDFNSystemsPrio.sort(MDFNSystemsPrio_CompareFunc);

 #ifdef WANT_CDIF
 CDUtility::CDUtility_Init();
	#endif

 return(1);
}

static std::string settings_file_path;
int MDFNI_Initialize(const char *basedir, const std::vector<MDFNSetting> &DriverSettings)
{
	// FIXME static
	static std::vector<MDFNSetting> dynamic_settings;

	// DO NOT REMOVE/DISABLE THESE MATH AND COMPILER SANITY TESTS.  THEY EXIST FOR A REASON.
	if(!MDFN_RunMathTests())
	{
	 return(0);
	}

	memset(PortDataCache, 0, sizeof(PortDataCache));
	memset(PortDataLenCache, 0, sizeof(PortDataLenCache));
	memset(PortDeviceCache, 0, sizeof(PortDeviceCache));

#ifdef WANT_REWIND
	lzo_init();
#endif

	MDFNI_SetBaseDirectory(basedir);

#ifdef WANT_SOFTGUI
	MDFN_InitFontData();
#endif

	// Generate dynamic settings
	for(unsigned int i = 0; i < MDFNSystems.size(); i++)
	{
	 MDFNSetting setting;
	 const char *sysname;
	
	 sysname = (const char *)MDFNSystems[i]->shortname;
 
	 if(!MDFNSystems[i]->soundchan)
	  printf("0 sound channels for %s????\n", sysname);

	 if(MDFNSystems[i]->soundchan == 2)
	 {
	  BuildDynamicSetting(&setting, sysname, "forcemono", MDFNSF_COMMON_TEMPLATE | MDFNSF_CAT_SOUND, CSD_forcemono, MDFNST_BOOL, "0");
	  dynamic_settings.push_back(setting);
	 }

	 BuildDynamicSetting(&setting, sysname, "enable", MDFNSF_COMMON_TEMPLATE, CSD_enable, MDFNST_BOOL, "1");
	 dynamic_settings.push_back(setting);

	 BuildDynamicSetting(&setting, sysname, "tblur", MDFNSF_COMMON_TEMPLATE | MDFNSF_CAT_VIDEO, CSD_tblur, MDFNST_BOOL, "0");
         dynamic_settings.push_back(setting);

         BuildDynamicSetting(&setting, sysname, "tblur.accum", MDFNSF_COMMON_TEMPLATE | MDFNSF_CAT_VIDEO, CSD_tblur_accum, MDFNST_BOOL, "0");
         dynamic_settings.push_back(setting);

         BuildDynamicSetting(&setting, sysname, "tblur.accum.amount", MDFNSF_COMMON_TEMPLATE | MDFNSF_CAT_VIDEO, CSD_tblur_accum_amount, MDFNST_FLOAT, "50", "0", "100");
	 dynamic_settings.push_back(setting);
	}

	// First merge all settable settings, then load the settings from the SETTINGS FILE OF DOOOOM
	MDFN_MergeSettings(MednafenSettings);
        MDFN_MergeSettings(dynamic_settings);
	MDFN_MergeSettings(MDFNMP_Settings);

	if(DriverSettings.size())
 	 MDFN_MergeSettings(DriverSettings);

	for(unsigned int x = 0; x < MDFNSystems.size(); x++)
	{
	 if(MDFNSystems[x]->Settings)
	  MDFN_MergeSettings(MDFNSystems[x]->Settings);
	}

	MDFN_MergeSettings(RenamedSettings);

	settings_file_path = std::string(basedir) + std::string(PSS) + std::string("mednafen-09x.cfg");
	if(!MDFN_LoadSettings(settings_file_path.c_str()))
	 return(0);

	#ifdef WANT_DEBUGGER
	MDFNDBG_Init();
	#endif

        return(1);
}

void MDFNI_Kill(void)
{
 MDFN_SaveSettings(settings_file_path.c_str());
 MDFN_KillSettings();
}

#ifdef WANT_RESAMPLER
static double multiplier_save, volume_save;
static Fir_Resampler<16> ff_resampler;

static void ProcessAudio(EmulateSpecStruct *espec)
{
 if(espec->SoundVolume != 1)
  volume_save = espec->SoundVolume;

 if(espec->soundmultiplier != 1)
  multiplier_save = espec->soundmultiplier;

 if(espec->SoundBuf && espec->SoundBufSize)
 {
  int16 *const SoundBuf = espec->SoundBuf + espec->SoundBufSizeALMS * MDFNGameInfo->soundchan;
  int32 SoundBufSize = espec->SoundBufSize - espec->SoundBufSizeALMS;
  const int32 SoundBufMaxSize = espec->SoundBufMaxSize - espec->SoundBufSizeALMS;

#ifdef WANT_AVDUMP
  if(qtrecorder && (volume_save != 1 || multiplier_save != 1))
  {
   int32 orig_size = SoundBufPristine.size();

   SoundBufPristine.resize(orig_size + SoundBufSize * MDFNGameInfo->soundchan);
   for(int i = 0; i < SoundBufSize * MDFNGameInfo->soundchan; i++)
    SoundBufPristine[orig_size + i] = SoundBuf[i];
  }
#endif //WANT_AVDUMP

#ifdef WANT_REWIND
  if(espec->NeedSoundReverse)
  {
   int16 *yaybuf = SoundBuf;
   int32 slen = SoundBufSize;

   if(MDFNGameInfo->soundchan == 1)
   {
    for(int x = 0; x < (slen / 2); x++)    
    {
     int16 cha = yaybuf[slen - x - 1];
     yaybuf[slen - x - 1] = yaybuf[x];
     yaybuf[x] = cha;
    }
   }
   else if(MDFNGameInfo->soundchan == 2)
   {
    for(int x = 0; x < (slen * 2) / 2; x++)
    {
     int16 cha = yaybuf[slen * 2 - (x&~1) - ((x&1) ^ 1) - 1];
     yaybuf[slen * 2 - (x&~1) - ((x&1) ^ 1) - 1] = yaybuf[x];
     yaybuf[x] = cha;
    }
   }
  }
#endif //WANT_REWIND

#ifdef WANT_AVDUMP
  try
  {
   if(wavrecorder)
    wavrecorder->WriteSound(SoundBuf, SoundBufSize);
  }
  catch(std::exception &e)
  {
   MDFND_PrintError(e.what());
   delete wavrecorder;
   wavrecorder = NULL;
  }
#endif

  if(multiplier_save != LastSoundMultiplier)
  {
   ff_resampler.time_ratio(multiplier_save, 0.9965);
   LastSoundMultiplier = multiplier_save;
  }

  if(multiplier_save != 1)
  {
   if(FFDiscard)
   {
    if(SoundBufSize >= multiplier_save)
     SoundBufSize /= multiplier_save;
   }
   else
   {
    if(MDFNGameInfo->soundchan == 2)
    {
     assert(ff_resampler.max_write() >= SoundBufSize * 2);

     for(int i = 0; i < SoundBufSize * 2; i++)
      ff_resampler.buffer()[i] = SoundBuf[i];
    }
    else
    {
     assert(ff_resampler.max_write() >= SoundBufSize * 2);

     for(int i = 0; i < SoundBufSize; i++)
     {
      ff_resampler.buffer()[i * 2] = SoundBuf[i];
      ff_resampler.buffer()[i * 2 + 1] = 0;
     }
    }   
    ff_resampler.write(SoundBufSize * 2);

    int avail = ff_resampler.avail();
    int real_read = std::min((int)(SoundBufMaxSize * MDFNGameInfo->soundchan), avail);

    if(MDFNGameInfo->soundchan == 2)
     SoundBufSize = ff_resampler.read(SoundBuf, real_read ) >> 1;
    else
     SoundBufSize = ff_resampler.read_mono_hack(SoundBuf, real_read );

    avail -= real_read;

    if(avail > 0)
    {
     printf("ff_resampler.avail() > espec->SoundBufMaxSize * MDFNGameInfo->soundchan - %d\n", avail);
     ff_resampler.clear();
    }
   }
  }

  if(volume_save != 1)
  {
   if(volume_save < 1)
   {
    int volume = (int)(16384 * volume_save);

    for(int i = 0; i < SoundBufSize * MDFNGameInfo->soundchan; i++)
     SoundBuf[i] = (SoundBuf[i] * volume) >> 14;
   }
   else
   {
    int volume = (int)(256 * volume_save);

    for(int i = 0; i < SoundBufSize * MDFNGameInfo->soundchan; i++)
    {
     int temp = ((SoundBuf[i] * volume) >> 8) + 32768;

     temp = clamp_to_u16(temp);

     SoundBuf[i] = temp - 32768;
    }
   }
  }

  // TODO: Optimize this.
  if(MDFNGameInfo->soundchan == 2 && MDFN_GetSettingB(std::string(std::string(MDFNGameInfo->shortname) + ".forcemono").c_str()))
  {
   for(int i = 0; i < SoundBufSize * MDFNGameInfo->soundchan; i += 2)
   {
    // We should use division instead of arithmetic right shift for correctness(rounding towards 0 instead of negative infinitininintinity), but I like speed.
    int32 mixed = (SoundBuf[i + 0] + SoundBuf[i + 1]) >> 1;

    SoundBuf[i + 0] =
    SoundBuf[i + 1] = mixed;
   }
  }

  espec->SoundBufSize = espec->SoundBufSizeALMS + SoundBufSize;
 } // end to:  if(espec->SoundBuf && espec->SoundBufSize)
}
#else
static void ProcessAudio(EmulateSpecStruct *espec)
{
   if(espec->SoundBuf && espec->SoundBufSize)
   {
      int16 *const SoundBuf = espec->SoundBuf + espec->SoundBufSizeALMS * MDFNGameInfo->soundchan;
      int32 SoundBufSize = espec->SoundBufSize - espec->SoundBufSizeALMS;
      const int32 SoundBufMaxSize = espec->SoundBufMaxSize - espec->SoundBufSizeALMS;

      espec->SoundBufSize = espec->SoundBufSizeALMS + SoundBufSize;
   } // end to:  if(espec->SoundBuf && espec->SoundBufSize)
}
#endif


#ifndef HEADLESS
void MDFN_MidSync(EmulateSpecStruct *espec)
{
 if(MDFNnetplay)
  return;

 ProcessAudio(espec);

 MDFND_MidSync(espec);

 for(int x = 0; x < 16; x++)
  if(PortDataCache[x])
   MDFNMOV_AddJoy(PortDataCache[x], PortDataLenCache[x]);

 espec->SoundBufSizeALMS = espec->SoundBufSize;
 espec->MasterCyclesALMS = espec->MasterCycles;
}
#endif

void MDFNI_Emulate(EmulateSpecStruct *espec)
{
#ifdef WANT_RESAMPLER
 multiplier_save = 1;
 volume_save = 1;
#endif

 // Initialize some espec member data to zero, to catch some types of bugs.
 espec->DisplayRect.x = 0;
 espec->DisplayRect.w = 0;
 espec->DisplayRect.y = 0;
 espec->DisplayRect.h = 0;

 assert((bool)(espec->SoundBuf != NULL) == (bool)espec->SoundRate && (bool)espec->SoundRate == (bool)espec->SoundBufMaxSize);

 espec->SoundBufSize = 0;

 espec->VideoFormatChanged = false;
 espec->SoundFormatChanged = false;

 if(memcmp(&last_pixel_format, &espec->surface->format, sizeof(MDFN_PixelFormat)))
 {
  espec->VideoFormatChanged = TRUE;

  last_pixel_format = espec->surface->format;
 }

 if(espec->SoundRate != last_sound_rate)
 {
  espec->SoundFormatChanged = true;
  last_sound_rate = espec->SoundRate;

#ifdef WANT_RESAMPLER
  ff_resampler.buffer_size((espec->SoundRate / 2) * 2);
#endif
 }

#ifdef WANT_AVDUMP
 // We want to record movies without any dropped video frames and without fast-forwarding sound distortion and without custom volume.
 // The same goes for WAV recording(sans the dropped video frames bit :b).
 if(qtrecorder || wavrecorder)
 {
  multiplier_save = espec->soundmultiplier;
  espec->soundmultiplier = 1;

  volume_save = espec->SoundVolume;
  espec->SoundVolume = 1;
 }
#endif

#ifdef WANT_NETPLAY
 if(MDFNnetplay)
 {
  NetplayUpdate((const char**)PortDeviceCache, PortDataCache, PortDataLenCache, MDFNGameInfo->InputInfo->InputPorts);
 }
#endif

#ifdef WANT_MOVIE
 for(int x = 0; x < 16; x++)
  if(PortDataCache[x])
   MDFNMOV_AddJoy(PortDataCache[x], PortDataLenCache[x]);
#endif

#ifdef WANT_AVDUMP
 if(qtrecorder)
  espec->skip = 0;
#endif

 if(TBlur_IsOn())
  espec->skip = 0;

#ifdef WANT_REWIND
 if(espec->NeedRewind)
 {
  if(MDFNMOV_IsPlaying())
  {
   espec->NeedRewind = 0;
   MDFN_DispMessage(_("Can't rewind during movie playback."));
  }
  else if(MDFNnetplay)
  {
   espec->NeedRewind = 0;
   MDFN_DispMessage(_("Silly-billy, can't rewind during netplay."));
  }
  else if(MDFNGameInfo->GameType == GMT_PLAYER)
  {
   espec->NeedRewind = 0;
   MDFN_DispMessage(_("Music player rewinding is unsupported."));
  }
 }
#endif

 // Don't even save states with state rewinding if netplay is enabled, it will degrade netplay performance, and can cause
 // desynchs with some emulation(IE SNES based on bsnes).
#if defined(WANT_NETPLAY) && defined(WANT_REWIND)
 if(MDFNnetplay)
  espec->NeedSoundReverse = false;
 else
 espec->NeedSoundReverse = MDFN_StateEvil(espec->NeedRewind);
#endif

 MDFNGameInfo->Emulate(espec);

 //
 // Sanity checks
 //
 if(!espec->skip)
 {
  if(espec->DisplayRect.h == 0)
  {
   fprintf(stderr, "espec->DisplayRect.h == 0\n");
  }
 }
 //
 //
 //

  ProcessAudio(espec);

#ifdef NEED_DEINTERLACER
 if(espec->InterlaceOn)
 {
  if(!PrevInterlaced)
   deint.ClearState();

  deint.Process(espec->surface, espec->DisplayRect, espec->LineWidths, espec->InterlaceField);

  PrevInterlaced = true;

  espec->InterlaceOn = false;
  espec->InterlaceField = 0;
 }
 else
  PrevInterlaced = false;
#endif //NEED_DEINTERLACER

#ifdef WANT_AVDUMP
 if(qtrecorder)
 {
  int16 *sb_backup = espec->SoundBuf;
  int32 sbs_backup = espec->SoundBufSize;

  if(SoundBufPristine.size())
  {
   espec->SoundBuf = &SoundBufPristine[0];
   espec->SoundBufSize = SoundBufPristine.size() / MDFNGameInfo->soundchan;
  }

  try
  {
   qtrecorder->WriteFrame(espec->surface, espec->DisplayRect, espec->LineWidths, espec->SoundBuf, espec->SoundBufSize);
  }
  catch(std::exception &e)
  {
   MDFND_PrintError(e.what());
   delete qtrecorder;
   qtrecorder = NULL;
  }

  SoundBufPristine.clear();

  espec->SoundBuf = sb_backup;
  espec->SoundBufSize = sbs_backup;
 }
#endif //WANT_AVDUMP

 TBlur_Run(espec);
}

// This function should only be called for state rewinding.
// FIXME:  Add a macro for SFORMAT structure access instead of direct access
int MDFN_RawInputStateAction(StateMem *sm, int load, int data_only)
{
 static const char *stringies[16] = { "RI00", "RI01", "RI02", "RI03", "RI04", "RI05", "RI06", "RI07", "RI08", "RI09", "RI0a", "RI0b", "RI0c", "RI0d", "RI0e", "RI0f" };
 SFORMAT StateRegs[17];
 int x;

 for(x = 0; x < 16; x++)
 {
  StateRegs[x].name = stringies[x];
  StateRegs[x].flags = 0;

  if(PortDataCache[x])
  {
   StateRegs[x].v = PortDataCache[x];
   StateRegs[x].size = PortDataLenCache[x];
  }
  else
  {
   StateRegs[x].v = NULL;
   StateRegs[x].size = 0;
  }
 }

 StateRegs[x].v = NULL;
 StateRegs[x].size = 0;
 StateRegs[x].name = NULL;

 int ret = MDFNSS_StateAction(sm, load, data_only, StateRegs, "rinp");

 return(ret);
}

static int curindent = 0;

void MDFN_indent(int indent)
{
 curindent += indent;
}

static uint8 lastchar = 0;
void MDFN_printf(const char *format, ...) throw()
{
 char *format_temp;
 char *temp;
 unsigned int x, newlen;

 va_list ap;
 va_start(ap,format);


 // First, determine how large our format_temp buffer needs to be.
 uint8 lastchar_backup = lastchar; // Save lastchar!
 for(newlen=x=0;x<strlen(format);x++)
 {
  if(lastchar == '\n' && format[x] != '\n')
  {
   int y;
   for(y=0;y<curindent;y++)
    newlen++;
  }
  newlen++;
  lastchar = format[x];
 }

 format_temp = (char *)malloc(newlen + 1); // Length + NULL character, duh
 
 // Now, construct our format_temp string
 lastchar = lastchar_backup; // Restore lastchar
 for(newlen=x=0;x<strlen(format);x++)
 {
  if(lastchar == '\n' && format[x] != '\n')
  {
   int y;
   for(y=0;y<curindent;y++)
    format_temp[newlen++] = ' ';
  }
  format_temp[newlen++] = format[x];
  lastchar = format[x];
 }

 format_temp[newlen] = 0;

 temp = trio_vaprintf(format_temp, ap);
 free(format_temp);

 MDFND_Message(temp);
 free(temp);

 va_end(ap);
}

void MDFN_PrintError(const char *format, ...) throw()
{
 char *temp;

 va_list ap;

 va_start(ap, format);

 temp = trio_vaprintf(format, ap);
 MDFND_PrintError(temp);
 free(temp);

 va_end(ap);
}

void MDFN_DebugPrintReal(const char *file, const int line, const char *format, ...)
{
 char *temp;

 va_list ap;

 va_start(ap, format);

 temp = trio_vaprintf(format, ap);
 printf("%s:%d  %s\n", file, line, temp);
 free(temp);

 va_end(ap);
}

void MDFN_DoSimpleCommand(int cmd)
{
 MDFNGameInfo->DoSimpleCommand(cmd);
}

void MDFN_QSimpleCommand(int cmd)
{
#ifdef WANT_NETPLAY
 if(MDFNnetplay)
  MDFNNET_SendCommand(cmd, 0);
 else
#endif
{
#ifdef HEADLESS
	 MDFN_DoSimpleCommand(cmd);
#else
  if(!MDFNMOV_IsPlaying())
  {
   MDFN_DoSimpleCommand(cmd);
   MDFNMOV_AddCommand(cmd);
  }
#endif
 }
}

void MDFNI_Power(void)
{
 assert(MDFNGameInfo);

 MDFN_QSimpleCommand(MDFN_MSC_POWER);
}

void MDFNI_Reset(void)
{
 assert(MDFNGameInfo);

 MDFN_QSimpleCommand(MDFN_MSC_RESET);
}

// Arcade-support functions
void MDFNI_ToggleDIPView(void)
{

}

void MDFNI_ToggleDIP(int which)
{
 assert(MDFNGameInfo);
 assert(which >= 0);

 MDFN_QSimpleCommand(MDFN_MSC_TOGGLE_DIP0 + which);
}

void MDFNI_InsertCoin(void)
{
 assert(MDFNGameInfo);
 
 MDFN_QSimpleCommand(MDFN_MSC_INSERT_COIN);
}

// Disk/Disc-based system support functions
void MDFNI_DiskInsert(int which)
{
 assert(MDFNGameInfo);

 MDFN_QSimpleCommand(MDFN_MSC_INSERT_DISK0 + which);
}

void MDFNI_DiskSelect()
{
 assert(MDFNGameInfo);

 MDFN_QSimpleCommand(MDFN_MSC_SELECT_DISK);
}

void MDFNI_DiskInsert()
{
 assert(MDFNGameInfo);

 MDFN_QSimpleCommand(MDFN_MSC_INSERT_DISK);
}

void MDFNI_DiskEject()
{
 assert(MDFNGameInfo);

 MDFN_QSimpleCommand(MDFN_MSC_EJECT_DISK);
}

void MDFNI_SetLayerEnableMask(uint64 mask)
{
 if(MDFNGameInfo && MDFNGameInfo->SetLayerEnableMask)
 {
  MDFNGameInfo->SetLayerEnableMask(mask);
  }
 }

void MDFNI_SetInput(int port, const char *type, void *ptr, uint32 ptr_len_thingy)
{
 if(MDFNGameInfo)
 {
  assert(port < 16);

  PortDataCache[port] = ptr;
  PortDataLenCache[port] = ptr_len_thingy;

  if(PortDeviceCache[port])
  {
   free(PortDeviceCache[port]);
   PortDeviceCache[port] = NULL;
  }

  PortDeviceCache[port] = strdup(type);

  MDFNGameInfo->SetInput(port, type, ptr);
 }
}