BizHawk/mednafen/libretro/minifen/minifen.cpp

#include "mednafen.h"

#include <string.h>
#include	<stdarg.h>
#include	<errno.h>
#include	<trio/trio.h>
#include	<list>
#include	<algorithm>

#include	"general.h"

#include	"state.h"
#include "video.h"
#ifdef NEED_DEINTERLACER
#include	"video/Deinterlacer.h"
#endif

#include	"file.h"
#include	"FileWrapper.h"

#ifdef NEED_CD
#include	"cdrom/cdromif.h"
#include	"cdrom/CDUtility.h"
#endif

#include	"mempatcher.h"
#include	"md5.h"
#include	"clamp.h"
#ifdef NEED_RESAMPLER
#include	"Fir_Resampler.h"
#endif

MDFNGI *MDFNGameInfo = NULL;

static double LastSoundMultiplier;

static MDFN_PixelFormat last_pixel_format;
static double last_sound_rate;

#ifdef NEED_DEINTERLACER
static bool PrevInterlaced;
static Deinterlacer deint;
#endif

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

void MDFNI_CloseGame(void)
{
   if(MDFNGameInfo)
   {
      MDFN_FlushGameCheats(0);

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

      MDFNGameInfo = NULL;

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

#ifdef WANT_DEBUGGER
   MDFNDBG_Kill();
#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);
}


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

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

   MDFN_LoadGameCheats(NULL);
   MDFNMP_InstallReadPatches();

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

   return(MDFNGameInfo);
}
#endif

// 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)
{
   return true;
}

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

#ifdef NEED_CD
   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));
#endif

   MDFNI_CloseGame();

   LastSoundMultiplier = 1;

   MDFNGameInfo = NULL;

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

   MDFN_indent(1);

   // 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;
   }

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

   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 NEED_CD
               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);

   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?
   // End load per-game settings
   //

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

   MDFN_LoadGameCheats(NULL);
   MDFNMP_InstallReadPatches();

   MDFNI_SetLayerEnableMask(~0ULL);

#ifdef WANT_DEBUGGER
   MDFNDBG_PostGameLoad();
#endif

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

   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

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

   return(MDFNGameInfo);
}

#if defined(WANT_PSX_EMU)
extern MDFNGI EmulatedPSX;
#elif defined(WANT_PCE_EMU)
extern MDFNGI EmulatedPCE;
#elif defined(WANT_PCE_FAST_EMU)
extern MDFNGI EmulatedPCE_Fast;
#elif defined(WANT_WSWAN_EMU)
extern MDFNGI EmulatedWSwan;
#endif

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
   };
   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);
   }

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

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

   MDFNSystemsPrio.sort(MDFNSystemsPrio_CompareFunc);

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

   return(1);
}

static std::string settings_file_path;
int MDFNI_Initialize(const char *basedir)
{
#ifdef WANT_DEBUGGER
   MDFNDBG_Init();
#endif

   return(1);
}

void MDFNI_Kill(void)
{
   /* save settings */
}

#if defined(NEED_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;

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

      if(multiplier_save != 1)
      {
         {
            if(MDFNGameInfo->soundchan == 2)
            {
               for(int i = 0; i < SoundBufSize * 2; i++)
                  ff_resampler.buffer()[i] = SoundBuf[i];
            }
            else
            {
               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

void MDFN_MidSync(EmulateSpecStruct *espec)
{
   ProcessAudio(espec);

   MDFND_MidSync(espec);

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

void MDFNI_Emulate(EmulateSpecStruct *espec)
{
   // 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;

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

   espec->NeedSoundReverse = false;

   MDFNGameInfo->Emulate(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

   ProcessAudio(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;

      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)
{
}

void MDFNI_Power(void)
{
   MDFN_QSimpleCommand(MDFN_MSC_POWER);
}

void MDFNI_Reset(void)
{
   MDFN_QSimpleCommand(MDFN_MSC_RESET);
}

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

}

void MDFNI_ToggleDIP(int which)
{
   MDFN_QSimpleCommand(MDFN_MSC_TOGGLE_DIP0 + which);
}

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

// Disk/Disc-based system support functions
void MDFNI_DiskInsert(int which)
{
   MDFN_QSimpleCommand(MDFN_MSC_INSERT_DISK0 + which);
}

void MDFNI_DiskSelect()
{
   MDFN_QSimpleCommand(MDFN_MSC_SELECT_DISK);
}

void MDFNI_DiskInsert()
{
   MDFN_QSimpleCommand(MDFN_MSC_INSERT_DISK);
}

void MDFNI_DiskEject()
{
   MDFN_QSimpleCommand(MDFN_MSC_EJECT_DISK);
}

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

void MDFNI_SetInput(int port, const char *type, void *ptr, uint32 ptr_len_thingy)
{
   MDFNGameInfo->SetInput(port, type, ptr);
}