0.4 rel?

[fceu.git] / svga.c

/* FCE Ultra - NES/Famicom Emulator
 *
 * Copyright notice for this file:
 *  Copyright (C) 1998 BERO
 *  Copyright (C) 2002 Ben Parnell
 *
 * 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
 */

/*                      SVGA High Level Routines
                          FCE / FCE Ultra
*/
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>

#include <stdarg.h>


#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif

#include "types.h"
#include "svga.h"
#include "fce.h"
#include "general.h"
#include "video.h"
#include "sound.h"
#include "version.h"
#include "nsf.h"
#include "palette.h"
#include "fds.h"
#include "netplay.h"
#include "state.h"
#include "cart.h"
#include "input.h"

#include "vsuni.h"

FCEUS FSettings;

static int howlong;
static char errmsg[65];

void FCEU_PrintError(char *format, ...)
{
 char temp[2048];

 va_list ap;

 va_start(ap,format);
 vsprintf(temp,format,ap);
 FCEUD_PrintError(temp);

 va_end(ap);
}

void FCEU_DispMessage(char *format, ...)
{
 va_list ap;

 va_start(ap,format);
 vsprintf(errmsg,format,ap);
 va_end(ap);

 howlong=180;
 if (errmsg[0] != '|')
  printf("%s\n", errmsg);
}

void FCEUI_SetRenderedLines(int ntscf, int ntscl, int palf, int pall)
{
 FSettings.UsrFirstSLine[0]=ntscf;
 FSettings.UsrLastSLine[0]=ntscl;
 FSettings.UsrFirstSLine[1]=palf;
 FSettings.UsrLastSLine[1]=pall;
 if(PAL)
 {
  FSettings.FirstSLine=FSettings.UsrFirstSLine[1];
  FSettings.LastSLine=FSettings.UsrLastSLine[1];
 }
 else
 {
  FSettings.FirstSLine=FSettings.UsrFirstSLine[0];
  FSettings.LastSLine=FSettings.UsrLastSLine[0];
 }

}

void FCEUI_SetVidSystem(int a)
{
 FSettings.PAL=a?1:0;
 FCEU_ResetVidSys();
 FCEU_ResetPalette();
}

int FCEUI_GetCurrentVidSystem(int *slstart, int *slend)
{
 if(slstart)
  *slstart=FSettings.FirstSLine;
 if(slend)
  *slend=FSettings.LastSLine;
 return(PAL);
}

#ifdef NETWORK
void FCEUI_SetNetworkPlay(int type)
{
 FSettings.NetworkPlay=type;
}
#endif

void FCEUI_SetGameGenie(int a)
{
 FSettings.GameGenie=a?1:0;
}

#ifndef NETWORK
#define netplay 0
#endif

uint8 Exit=0;

uint8 DIPS=0;

uint8 CommandQueue=0;


void FCEUI_SetSnapName(int a)
{
 FSettings.SnapName=a;
}

void FCEUI_SaveExtraDataUnderBase(int a)
{
 FSettings.SUnderBase=a;
}


void FCEUI_SelectState(int w)
{
 // if(netplay!=2 && FCEUGameInfo.type!=GIT_NSF)
 //  CommandQueue=42+w;
}

void FCEUI_SaveState(void)
{
 // if(netplay!=2 && FCEUGameInfo.type!=GIT_NSF)
 //  CommandQueue=40;

 //CheckStates();
 SaveState();
}

void FCEUI_LoadState(void)
{
 // if(netplay!=2 && FCEUGameInfo.type!=GIT_NSF)
 //  CommandQueue=41;
 //CheckStates();
 LoadState();
}

int32 FCEUI_GetDesiredFPS(void)
{
  if(PAL)
   return(838977920); // ~50.007
  else
   return(1008307711);	// ~60.1
}

static int dosnapsave=0;
void FCEUI_SaveSnapshot(void)
{
 dosnapsave=1;
}

/* I like the sounds of breaking necks. */
static void ReallySnap(void)
{
 int x=SaveSnapshot();
 if(!x)
  FCEU_DispMessage("Error saving screen snapshot.");
 else
  FCEU_DispMessage("Screen snapshot %d saved.",x-1);
}

void DriverInterface(int w, void *d)
{
 switch(w)
 {
  case DES_RESET:if(netplay!=2) CommandQueue=30;break;
  case DES_POWER:if(netplay!=2) CommandQueue=31;break;

  case DES_VSUNIDIPSET:CommandQueue=10+(int)d;break;
  case DES_VSUNITOGGLEDIPVIEW:CommandQueue=10;break;
  case DES_VSUNICOIN:CommandQueue=19;break;
#if 0
  case DES_NTSCDEC:
		  if(ntsccol && FCEUGameInfo.type!=GIT_VSUNI && !PAL && FCEUGameInfo.type!=GIT_NSF)
		  {
		   char which;
		   if(controlselect)
		   {
		    if(controllength)
		    {
		     which=controlselect==1?ntschue:ntsctint;
		     which--;
		     if(which<0) which=0;
			 if(controlselect==1)
			  ntschue=which;
			 else ntsctint=which;
		     CalculatePalette();
		    }
		   controllength=360;
		    }
		   }
		  break;
  case DES_NTSCINC:
		   if(ntsccol && FCEUGameInfo.type!=GIT_VSUNI && !PAL && FCEUGameInfo.type!=GIT_NSF)
		     if(controlselect)
		     {
		      if(controllength)
		      {
		       switch(controlselect)
		       {
		        case 1:ntschue++;
		               if(ntschue>128) ntschue=128;
		               CalculatePalette();
		               break;
		        case 2:ntsctint++;
		               if(ntsctint>128) ntsctint=128;
		               CalculatePalette();
		               break;
		       }
		      }
		      controllength=360;
		     }
          	    break;
#endif
  }
}


#include "drawing.h"
#ifdef FRAMESKIP
void FCEU_PutImageDummy(void)
{
 if(howlong) howlong--;	/* DrawMessage() */
 #ifdef FPS
 {
  extern uint64 frcount;
  frcount++;
 }
 #endif

}
#endif

void FCEU_PutImage(void)
{
        if(FCEUGameInfo.type==GIT_NSF)
	{
         DrawNSF(XBuf);
	 /* Save snapshot after NSF screen is drawn.  Why would we want to
	    do it before?
	 */
         if(dosnapsave)
         {
          ReallySnap();
          dosnapsave=0;
         }
	}
        else
        {
	 /* Save snapshot before overlay stuff is written. */
         if(dosnapsave)
         {
          ReallySnap();
          dosnapsave=0;
         }
	 if(FCEUGameInfo.type==GIT_VSUNI)
		 FCEU_VSUniDraw(XBuf);

	 //FCEU_DrawSaveStates(XBuf);
	 //FCEU_DrawMovies(XBuf);
	 //FCEU_DrawNTSCControlBars(XBuf);
	 //FCEU_DrawRecordingStatus(XBuf);

         //if(controllength) {controllength--;DrawBars();}
        }
	DrawMessage();
	#ifdef FPS
	{
	extern uint64 frcount;
	frcount++;
	}
	#endif
	DrawInput(XBuf+8);
}

#if 0
void DoCommand(uint8 c)
{
 switch(c)
 {
  case 1:FDSControl(FDS_SELECT);break;
  case 2:FDSControl(FDS_IDISK);break;
  case 3:FDSControl(FDS_EJECT);break;

  case 10:DIPS^=2;break;
  case 11:vsdip^=1;DIPS|=2;break;
  case 12:vsdip^=2;DIPS|=2;break;
  case 13:vsdip^=4;DIPS|=2;break;
  case 14:vsdip^=8;DIPS|=2;break;
  case 15:vsdip^=0x10;DIPS|=2;break;
  case 16:vsdip^=0x20;DIPS|=2;break;
  case 17:vsdip^=0x40;DIPS|=2;break;
  case 18:vsdip^=0x80;DIPS|=2;break;
  case 19:coinon=6;break;
  case 30:ResetNES();break;
  case 31:PowerNES();break;
  case 40:CheckStates();StateShow=0;SaveState();break;
  case 41:CheckStates();StateShow=0;LoadState();break;
  case 42: case 43: case 44: case 45: case 46: case 47: case 48: case 49:
  case 50: case 51:StateShow=180;CurrentState=c-42;CheckStates();break;
 }
}
#endif