| 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]={32768*1.239,32768*.794,32768*1.019,32768*.905,32768*1.023,32768*.741,32768*.75}; |
| 310 | static uint16 gtmul[7]={32768*.915,32768*1.086,32768*.98,32768*1.026,32768*.908,32768*.987,32768*.75}; |
| 311 | static uint16 btmul[7]={32768*.743,32768*.882,32768*.653,32768*1.277,32768*.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)*s*cos(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 | } |