[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"

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;
}

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;
}

static void CalculatePalette(void);
static void ChoosePalette(void);
static void WritePalette(void);

#ifndef NETWORK
#define netplay 0
#endif

static uint8 StateShow=0;

uint8 Exit=0;

uint8 DIPS=0;
uint8 vsdip=0;
int coinon=0;

uint8 pale=0;
uint8 CommandQueue=0;

static int controlselect=0;
static int ntsccol=0;
static int ntsctint=46+10;
static int ntschue=72;
static int controllength=0;

pal *palo;
static pal *palpoint[8]=
     {
     palette,
     palettevscv,
     palettevssmb,
     palettevsmar,
     palettevsgoon,
     palettevsslalom,
     palettevseb,
     rp2c04001
     };

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

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

void FCEUI_SetPaletteArray(uint8 *pal)
{
 if(!pal)
  palpoint[0]=palette;
 else
 {
  int x;
  palpoint[0]=palettec;
  for(x=0;x<64;x++)
  {
   palpoint[0][x].r=*((uint8 *)pal+x+x+x);
   palpoint[0][x].g=*((uint8 *)pal+x+x+x+1);
   palpoint[0][x].b=*((uint8 *)pal+x+x+x+2);
  }
 }
 FCEU_ResetPalette();
}

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;
}

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

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_NTSCCOL:ntsccol=*(int *)d;FCEU_ResetPalette();break;
  case DES_RESET:if(netplay!=2) CommandQueue=30;break;
  case DES_POWER:if(netplay!=2) CommandQueue=31;break;
  case DES_GETNTSCTINT:*(int*)d=ntsctint;break;
  case DES_GETNTSCHUE:*(int*)d=ntschue;break;
  case DES_SETNTSCTINT:ntsctint=*(int*)d;if(ntsccol)FCEU_ResetPalette();break;
  case DES_SETNTSCHUE:ntschue=*(int*)d;if(ntsccol)FCEU_ResetPalette();break;

  case DES_FDSINSERT:if(netplay!=2) CommandQueue=2;break;
  case DES_FDSEJECT:if(netplay!=2) CommandQueue=3;break;
  case DES_FDSSELECT:if(netplay!=2) CommandQueue=1;break;

  case DES_NSFINC:NSFControl(1);break;
  case DES_NSFDEC:NSFControl(2);break;
  case DES_NSFRES:NSFControl(0);break;  

  case DES_VSUNIDIPSET:CommandQueue=10+(int)d;break;
  case DES_VSUNITOGGLEDIPVIEW:CommandQueue=10;break;
  case DES_VSUNICOIN:CommandQueue=19;break;
  case DES_NTSCSELHUE:if(ntsccol && FCEUGameInfo.type!=GIT_VSUNI && !PAL && FCEUGameInfo.type!=GIT_NSF){controlselect=1;controllength=360;}break;
  case DES_NTSCSELTINT:if(ntsccol && FCEUGameInfo.type!=GIT_VSUNI && !PAL && FCEUGameInfo.type!=GIT_NSF){controlselect=2;controllength=360;}break;

  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;
  }
}

static uint8 lastd=0;
void SetNESDeemph(uint8 d, int force)
{
 static uint16 rtmul[7]={32768*1.239,32768*.794,32768*1.019,32768*.905,32768*1.023,32768*.741,32768*.75};
 static uint16 gtmul[7]={32768*.915,32768*1.086,32768*.98,32768*1.026,32768*.908,32768*.987,32768*.75};
 static uint16 btmul[7]={32768*.743,32768*.882,32768*.653,32768*1.277,32768*.979,32768*.101,32768*.75};
 uint32 r,g,b;
 int x;

 /* If it's not forced(only forced when the palette changes), 
    don't waste cpu time if the same deemphasis bits are set as the last call. 
 */
 if(!force) 
 {
  if(d==lastd) 
   return;
 }
 else	/* Only set this when palette has changed. */
 {
  r=rtmul[6];
  g=rtmul[6];
  b=rtmul[6];

  for(x=0;x<0x40;x++)
  {
   uint32 m,n,o;
   m=palo[x].r;
   n=palo[x].g;
   o=palo[x].b;
   m=(m*r)>>15;
   n=(n*g)>>15;
   o=(o*b)>>15;
   if(m>0xff) m=0xff;
   if(n>0xff) n=0xff;
   if(o>0xff) o=0xff;
   FCEUD_SetPalette(x|0x40,m,n,o);
  }
 }
 if(!d) return;	/* No deemphasis, so return. */

  r=rtmul[d-1];
  g=gtmul[d-1];
  b=btmul[d-1];

    for(x=0;x<0x40;x++)
    {
     uint32 m,n,o;

     m=palo[x].r;
     n=palo[x].g;
     o=palo[x].b;
     m=(m*r)>>15;
     n=(n*g)>>15;
     o=(o*b)>>15;
     if(m>0xff) m=0xff;
     if(n>0xff) n=0xff;
     if(o>0xff) o=0xff;

     FCEUD_SetPalette(x|0xC0,m,n,o);
    }
 
 lastd=d;
}

#define HUEVAL  ((double)((double)ntschue/(double)2)+(double)300)
#define TINTVAL ((double)((double)ntsctint/(double)128))

static void CalculatePalette(void)
{
 int x,z;
 int r,g,b;
 double s,y,theta;
 static uint8 cols[16]={0,24,21,18,15,12,9,6,3,0,33,30,27,0,0,0};
 static uint8 br1[4]={6,9,12,12};
 static double br2[4]={.29,.45,.73,.9};
 static double br3[4]={0,.24,.47,.77};
  
 for(x=0;x<=3;x++)
  for(z=0;z<16;z++)
  {
   s=(double)TINTVAL;
   y=(double)br2[x];
   if(z==0)  {s=0;y=((double)br1[x])/12;}
   
   if(z>=13)
   {
    s=y=0;
    if(z==13)
     y=(double)br3[x];     
   }

   theta=(double)M_PI*(double)(((double)cols[z]*10+HUEVAL)/(double)180);
   r=(int)(((double)y+(double)s*(double)sin(theta))*(double)256);
   g=(int)(((double)y-(double)((double)27/(double)53)*s*(double)sin(theta)+(double)((double)10/(double)53)*s*cos(theta))*(double)256);
   b=(int)(((double)y-(double)s*(double)cos(theta))*(double)256);  

   // TODO:  Fix RGB to compensate for phosphor changes(add to red??).

   if(r>255) r=255;
   if(g>255) g=255;
   if(b>255) b=255;
   if(r<0) r=0;
   if(g<0) g=0;
   if(b<0) b=0;
    
   paletten[(x<<4)+z].r=r;
   paletten[(x<<4)+z].g=g;
   paletten[(x<<4)+z].b=b;
  }
 WritePalette();
}

#include "drawing.h"
#ifdef FRAMESKIP
void FCEU_PutImageDummy(void)
{
 if(FCEUGameInfo.type!=GIT_NSF)
 {
  if(controllength) controllength--;
 }
 if(StateShow) StateShow--; /* DrawState() */
 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 && DIPS&2)         
	  DrawDips();
         if(StateShow) DrawState();
         if(controllength) {controllength--;DrawBars();}
        }
	DrawMessage();
	#ifdef FPS
	{
	extern uint64 frcount;
	frcount++;
	}
	#endif
	DrawInput(XBuf+8);
}

static int ipalette=0;

void LoadGamePalette(void)
{
  uint8 ptmp[192];
  FILE *fp;
  ipalette=0;
  if((fp=fopen(FCEU_MakeFName(FCEUMKF_PALETTE,0,0),"rb")))
  {
   int x;
   fread(ptmp,1,192,fp);
   fclose(fp);
   for(x=0;x<64;x++)
   {
    palettei[x].r=ptmp[x+x+x];
    palettei[x].g=ptmp[x+x+x+1];
    palettei[x].b=ptmp[x+x+x+2];
   }
   ipalette=1;
  }
}

void FCEU_ResetPalette(void)
{
   ChoosePalette();
   WritePalette();
}

static void ChoosePalette(void)
{
    if(FCEUGameInfo.type==GIT_NSF)
     palo=NSFPalette;   
    else if(ipalette)
     palo=palettei;
    else if(ntsccol && !PAL && FCEUGameInfo.type!=GIT_VSUNI)
     {
      palo=paletten;
      CalculatePalette();
     }
    else
     palo=palpoint[pale];  
}

void WritePalette(void)
{
    int x;

    for(x=0;x<6;x++)
     FCEUD_SetPalette(x+128,unvpalette[x].r,unvpalette[x].g,unvpalette[x].b);
    if(FCEUGameInfo.type==GIT_NSF)
    {
     for(x=0;x<39;x++)
      FCEUD_SetPalette(x,palo[x].r,palo[x].g,palo[x].b); 
    }
    else
    {
     for(x=0;x<64;x++)
      FCEUD_SetPalette(x,palo[x].r,palo[x].g,palo[x].b);
     SetNESDeemph(lastd,1);
    }
}

void FlushCommandQueue(void)
{
  if(!netplay && CommandQueue) {DoCommand(CommandQueue);CommandQueue=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;
 }
}
Commit	Line	Data
c62d2810	1	/* FCE Ultra - NES/Famicom Emulator
	2	*
	3	* Copyright notice for this file:
	4	* Copyright (C) 1998 BERO
	5	* Copyright (C) 2002 Ben Parnell
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License as published by
	9	* the Free Software Foundation; either version 2 of the License, or
	10	* (at your option) any later version.
	11	*
	12	* This program is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program; if not, write to the Free Software
	19	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	20	*/
	21
	22	/* SVGA High Level Routines
	23	FCE / FCE Ultra
	24	*/
	25	#include <stdio.h>
	26	#include <stdlib.h>
	27	#include <math.h>
	28	#include <string.h>
	29
	30	#include <stdarg.h>
	31
	32
	33	#ifndef M_PI
	34	#define M_PI 3.14159265358979323846
	35	#endif
	36
	37	#include "types.h"
	38	#include "svga.h"
	39	#include "fce.h"
	40	#include "general.h"
	41	#include "video.h"
	42	#include "sound.h"
	43	#include "version.h"
	44	#include "nsf.h"
	45	#include "palette.h"
	46	#include "fds.h"
	47	#include "netplay.h"
	48	#include "state.h"
	49	#include "cart.h"
	50	#include "input.h"
	51
	52	FCEUS FSettings;
	53
	54	static int howlong;
	55	static char errmsg[65];
	56
	57	void FCEU_PrintError(char *format, ...)
	58	{
	59	char temp[2048];
	60
	61	va_list ap;
	62
	63	va_start(ap,format);
	64	vsprintf(temp,format,ap);
65	FCEUD_PrintError(temp);
66
67	va_end(ap);
68	}
69
70	void FCEU_DispMessage(char *format, ...)
71	{
72	va_list ap;
73
74	va_start(ap,format);
75	vsprintf(errmsg,format,ap);
76	va_end(ap);
77
78	howlong=180;
79	}
80
81	void FCEUI_SetRenderedLines(int ntscf, int ntscl, int palf, int pall)
82	{
83	FSettings.UsrFirstSLine[0]=ntscf;
84	FSettings.UsrLastSLine[0]=ntscl;
85	FSettings.UsrFirstSLine[1]=palf;
86	FSettings.UsrLastSLine[1]=pall;
87	if(PAL)
88	{
89	FSettings.FirstSLine=FSettings.UsrFirstSLine[1];
90	FSettings.LastSLine=FSettings.UsrLastSLine[1];
91	}
92	else
93	{
94	FSettings.FirstSLine=FSettings.UsrFirstSLine[0];
95	FSettings.LastSLine=FSettings.UsrLastSLine[0];
96	}
97
98	}
99
100	void FCEUI_SetVidSystem(int a)
101	{
102	FSettings.PAL=a?1:0;
103	FCEU_ResetVidSys();
104	FCEU_ResetPalette();
105	}
106
107	int FCEUI_GetCurrentVidSystem(int slstart, int slend)
108	{
109	if(slstart)
110	*slstart=FSettings.FirstSLine;
111	if(slend)
112	*slend=FSettings.LastSLine;
113	return(PAL);
114	}
115
116	#ifdef NETWORK
117	void FCEUI_SetNetworkPlay(int type)
118	{
119	FSettings.NetworkPlay=type;
120	}
121	#endif
122
123	void FCEUI_SetGameGenie(int a)
124	{
125	FSettings.GameGenie=a?1:0;
126	}
127
128	static void CalculatePalette(void);
129	static void ChoosePalette(void);
130	static void WritePalette(void);
131
132	#ifndef NETWORK
133	#define netplay 0
134	#endif
135
136	static uint8 StateShow=0;
137
138	uint8 Exit=0;
139
140	uint8 DIPS=0;
141	uint8 vsdip=0;
142	int coinon=0;
143
144	uint8 pale=0;
145	uint8 CommandQueue=0;
146
147	static int controlselect=0;
148	static int ntsccol=0;
149	static int ntsctint=46+10;
150	static int ntschue=72;
151	static int controllength=0;
152
153	pal *palo;
154	static pal *palpoint[8]=
155	{
156	palette,
157	palettevscv,
158	palettevssmb,
159	palettevsmar,
160	palettevsgoon,
161	palettevsslalom,
162	palettevseb,
163	rp2c04001
164	};
165
166	void FCEUI_SetSnapName(int a)
167	{
168	FSettings.SnapName=a;
169	}
170
171	void FCEUI_SaveExtraDataUnderBase(int a)
172	{
173	FSettings.SUnderBase=a;
174	}
175
176	void FCEUI_SetPaletteArray(uint8 *pal)
177	{
178	if(!pal)
179	palpoint[0]=palette;
180	else
181	{
182	int x;
183	palpoint[0]=palettec;
184	for(x=0;x<64;x++)
185	{
186	palpoint[0][x].r=((uint8 )pal+x+x+x);
187	palpoint[0][x].g=((uint8 )pal+x+x+x+1);
188	palpoint[0][x].b=((uint8 )pal+x+x+x+2);
189	}
190	}
191	FCEU_ResetPalette();
192	}
193
194	void FCEUI_SelectState(int w)
195	{
196	if(netplay!=2 && FCEUGameInfo.type!=GIT_NSF)
197	CommandQueue=42+w;
198	}
199
200	void FCEUI_SaveState(void)
201	{
202	if(netplay!=2 && FCEUGameInfo.type!=GIT_NSF)
203	CommandQueue=40;
204	}
205
206	void FCEUI_LoadState(void)
207	{
208	if(netplay!=2 && FCEUGameInfo.type!=GIT_NSF)
209	CommandQueue=41;
210	}
211
212	int32 FCEUI_GetDesiredFPS(void)
213	{
214	if(PAL)
215	return(838977920); // ~50.007
216	else
217	return(1008307711); // ~60.1
218	}
219
220	static int dosnapsave=0;
221	void FCEUI_SaveSnapshot(void)
222	{
223	dosnapsave=1;
224	}
225
226	/* I like the sounds of breaking necks. */
227	static void ReallySnap(void)
228	{
229	int x=SaveSnapshot();
230	if(!x)
231	FCEU_DispMessage("Error saving screen snapshot.");
232	else
233	FCEU_DispMessage("Screen snapshot %d saved.",x-1);
234	}
235
236	void DriverInterface(int w, void *d)
237	{
238	switch(w)
239	{
240	case DES_NTSCCOL:ntsccol=(int )d;FCEU_ResetPalette();break;
241	case DES_RESET:if(netplay!=2) CommandQueue=30;break;
242	case DES_POWER:if(netplay!=2) CommandQueue=31;break;
243	case DES_GETNTSCTINT:(int)d=ntsctint;break;
244	case DES_GETNTSCHUE:(int)d=ntschue;break;
245	case DES_SETNTSCTINT:ntsctint=(int)d;if(ntsccol)FCEU_ResetPalette();break;
246	case DES_SETNTSCHUE:ntschue=(int)d;if(ntsccol)FCEU_ResetPalette();break;
247
248	case DES_FDSINSERT:if(netplay!=2) CommandQueue=2;break;
249	case DES_FDSEJECT:if(netplay!=2) CommandQueue=3;break;
250	case DES_FDSSELECT:if(netplay!=2) CommandQueue=1;break;
251
252	case DES_NSFINC:NSFControl(1);break;
253	case DES_NSFDEC:NSFControl(2);break;
254	case DES_NSFRES:NSFControl(0);break;
255
256	case DES_VSUNIDIPSET:CommandQueue=10+(int)d;break;
257	case DES_VSUNITOGGLEDIPVIEW:CommandQueue=10;break;
258	case DES_VSUNICOIN:CommandQueue=19;break;
259	case DES_NTSCSELHUE:if(ntsccol && FCEUGameInfo.type!=GIT_VSUNI && !PAL && FCEUGameInfo.type!=GIT_NSF){controlselect=1;controllength=360;}break;
260	case DES_NTSCSELTINT:if(ntsccol && FCEUGameInfo.type!=GIT_VSUNI && !PAL && FCEUGameInfo.type!=GIT_NSF){controlselect=2;controllength=360;}break;
261
262	case DES_NTSCDEC:
263	if(ntsccol && FCEUGameInfo.type!=GIT_VSUNI && !PAL && FCEUGameInfo.type!=GIT_NSF)
264	{
265	char which;
266	if(controlselect)
267	{
268	if(controllength)
269	{
270	which=controlselect==1?ntschue:ntsctint;
271	which--;
272	if(which<0) which=0;
273	if(controlselect==1)
274	ntschue=which;
275	else ntsctint=which;
276	CalculatePalette();
277	}
278	controllength=360;
279	}
280	}
281	break;
282	case DES_NTSCINC:
283	if(ntsccol && FCEUGameInfo.type!=GIT_VSUNI && !PAL && FCEUGameInfo.type!=GIT_NSF)
284	if(controlselect)
285	{
286	if(controllength)
287	{
288	switch(controlselect)
289	{
290	case 1:ntschue++;
291	if(ntschue>128) ntschue=128;
292	CalculatePalette();
293	break;
294	case 2:ntsctint++;
295	if(ntsctint>128) ntsctint=128;
296	CalculatePalette();
297	break;
298	}
299	}
300	controllength=360;
301	}
302	break;
303	}
304	}
305
306	static uint8 lastd=0;
307	void SetNESDeemph(uint8 d, int force)
308	{
309	static uint16 rtmul[7]={327681.239,32768.794,327681.019,32768.905,327681.023,32768.741,32768*.75};
310	static uint16 gtmul[7]={32768.915,327681.086,32768.98,327681.026,32768.908,32768.987,32768*.75};
311	static uint16 btmul[7]={32768.743,32768.882,32768.653,327681.277,32768.979,32768.101,32768*.75};
312	uint32 r,g,b;
313	int x;
314
315	/* If it's not forced(only forced when the palette changes),
316	don't waste cpu time if the same deemphasis bits are set as the last call.
317	*/
318	if(!force)
319	{
320	if(d==lastd)
321	return;
322	}
323	else /* Only set this when palette has changed. */
324	{
325	r=rtmul[6];
326	g=rtmul[6];
327	b=rtmul[6];
328
329	for(x=0;x<0x40;x++)
330	{
331	uint32 m,n,o;
332	m=palo[x].r;
333	n=palo[x].g;
334	o=palo[x].b;
335	m=(m*r)>>15;
336	n=(n*g)>>15;
337	o=(o*b)>>15;
338	if(m>0xff) m=0xff;
339	if(n>0xff) n=0xff;
340	if(o>0xff) o=0xff;
341	FCEUD_SetPalette(x\|0x40,m,n,o);
342	}
343	}
344	if(!d) return; /* No deemphasis, so return. */
345
346	r=rtmul[d-1];
347	g=gtmul[d-1];
348	b=btmul[d-1];
349
350	for(x=0;x<0x40;x++)
351	{
352	uint32 m,n,o;
353
354	m=palo[x].r;
355	n=palo[x].g;
356	o=palo[x].b;
357	m=(m*r)>>15;
358	n=(n*g)>>15;
359	o=(o*b)>>15;
360	if(m>0xff) m=0xff;
361	if(n>0xff) n=0xff;
362	if(o>0xff) o=0xff;
363
364	FCEUD_SetPalette(x\|0xC0,m,n,o);
365	}
366
367	lastd=d;
368	}
369
370	#define HUEVAL ((double)((double)ntschue/(double)2)+(double)300)
371	#define TINTVAL ((double)((double)ntsctint/(double)128))
372
373	static void CalculatePalette(void)
374	{
375	int x,z;
376	int r,g,b;
377	double s,y,theta;
378	static uint8 cols[16]={0,24,21,18,15,12,9,6,3,0,33,30,27,0,0,0};
379	static uint8 br1[4]={6,9,12,12};
380	static double br2[4]={.29,.45,.73,.9};
381	static double br3[4]={0,.24,.47,.77};
382
383	for(x=0;x<=3;x++)
384	for(z=0;z<16;z++)
385	{
386	s=(double)TINTVAL;
387	y=(double)br2[x];
388	if(z==0) {s=0;y=((double)br1[x])/12;}
389
390	if(z>=13)
391	{
392	s=y=0;
393	if(z==13)
394	y=(double)br3[x];
395	}
396
397	theta=(double)M_PI(double)(((double)cols[z]10+HUEVAL)/(double)180);
398	r=(int)(((double)y+(double)s(double)sin(theta))(double)256);
399	g=(int)(((double)y-(double)((double)27/(double)53)s(double)sin(theta)+(double)((double)10/(double)53)scos(theta))*(double)256);
400	b=(int)(((double)y-(double)s(double)cos(theta))(double)256);
401
402	// TODO: Fix RGB to compensate for phosphor changes(add to red??).
403
404	if(r>255) r=255;
405	if(g>255) g=255;
406	if(b>255) b=255;
407	if(r<0) r=0;
408	if(g<0) g=0;
409	if(b<0) b=0;
410
411	paletten[(x<<4)+z].r=r;
412	paletten[(x<<4)+z].g=g;
413	paletten[(x<<4)+z].b=b;
414	}
415	WritePalette();
416	}
417
418	#include "drawing.h"
419	#ifdef FRAMESKIP
420	void FCEU_PutImageDummy(void)
421	{
422	if(FCEUGameInfo.type!=GIT_NSF)
423	{
424	if(controllength) controllength--;
425	}
426	if(StateShow) StateShow--; /* DrawState() */
427	if(howlong) howlong--; /* DrawMessage() */
428	#ifdef FPS
429	{
430	extern uint64 frcount;
431	frcount++;
432	}
433	#endif
434
435	}
436	#endif
437
438	void FCEU_PutImage(void)
439	{
440	if(FCEUGameInfo.type==GIT_NSF)
441	{
442	DrawNSF(XBuf);
443	/* Save snapshot after NSF screen is drawn. Why would we want to
444	do it before?
445	*/
446	if(dosnapsave)
447	{
448	ReallySnap();
449	dosnapsave=0;
450	}
451	}
452	else
453	{
454	/* Save snapshot before overlay stuff is written. */
455	if(dosnapsave)
456	{
457	ReallySnap();
458	dosnapsave=0;
459	}
460	if(FCEUGameInfo.type==GIT_VSUNI && DIPS&2)
461	DrawDips();
462	if(StateShow) DrawState();
463	if(controllength) {controllength--;DrawBars();}
464	}
465	DrawMessage();
466	#ifdef FPS
467	{
468	extern uint64 frcount;
469	frcount++;
470	}
471	#endif
472	DrawInput(XBuf+8);
473	}
474
475	static int ipalette=0;
476
477	void LoadGamePalette(void)
478	{
479	uint8 ptmp[192];
480	FILE *fp;
481	ipalette=0;
482	if((fp=fopen(FCEU_MakeFName(FCEUMKF_PALETTE,0,0),"rb")))
483	{
484	int x;
485	fread(ptmp,1,192,fp);
486	fclose(fp);
487	for(x=0;x<64;x++)
488	{
489	palettei[x].r=ptmp[x+x+x];
490	palettei[x].g=ptmp[x+x+x+1];
491	palettei[x].b=ptmp[x+x+x+2];
492	}
493	ipalette=1;
494	}
495	}
496
497	void FCEU_ResetPalette(void)
498	{
499	ChoosePalette();
500	WritePalette();
501	}
502
503	static void ChoosePalette(void)
504	{
505	if(FCEUGameInfo.type==GIT_NSF)
506	palo=NSFPalette;
507	else if(ipalette)
508	palo=palettei;
509	else if(ntsccol && !PAL && FCEUGameInfo.type!=GIT_VSUNI)
510	{
511	palo=paletten;
512	CalculatePalette();
513	}
514	else
515	palo=palpoint[pale];
516	}
517
518	void WritePalette(void)
519	{
520	int x;
521
522	for(x=0;x<6;x++)
523	FCEUD_SetPalette(x+128,unvpalette[x].r,unvpalette[x].g,unvpalette[x].b);
524	if(FCEUGameInfo.type==GIT_NSF)
525	{
526	for(x=0;x<39;x++)
527	FCEUD_SetPalette(x,palo[x].r,palo[x].g,palo[x].b);
528	}
529	else
530	{
531	for(x=0;x<64;x++)
532	FCEUD_SetPalette(x,palo[x].r,palo[x].g,palo[x].b);
533	SetNESDeemph(lastd,1);
534	}
535	}
536
537	void FlushCommandQueue(void)
538	{
539	if(!netplay && CommandQueue) {DoCommand(CommandQueue);CommandQueue=0;}
540	}
541
542	void DoCommand(uint8 c)
543	{
544	switch(c)
545	{
546	case 1:FDSControl(FDS_SELECT);break;
547	case 2:FDSControl(FDS_IDISK);break;
548	case 3:FDSControl(FDS_EJECT);break;
549
550	case 10:DIPS^=2;break;
551	case 11:vsdip^=1;DIPS\|=2;break;
552	case 12:vsdip^=2;DIPS\|=2;break;
553	case 13:vsdip^=4;DIPS\|=2;break;
554	case 14:vsdip^=8;DIPS\|=2;break;
555	case 15:vsdip^=0x10;DIPS\|=2;break;
556	case 16:vsdip^=0x20;DIPS\|=2;break;
557	case 17:vsdip^=0x40;DIPS\|=2;break;
558	case 18:vsdip^=0x80;DIPS\|=2;break;
559	case 19:coinon=6;break;
560	case 30:ResetNES();break;
561	case 31:PowerNES();break;
562	case 40:CheckStates();StateShow=0;SaveState();break;
563	case 41:CheckStates();StateShow=0;LoadState();break;
564	case 42: case 43: case 44: case 45: case 46: case 47: case 48: case 49:
565	case 50: case 51:StateShow=180;CurrentState=c-42;CheckStates();break;
566	}
567	}