| 1 | /** |
| 2 | * For whatever reason, breaking this out of fce.c made sprites not corrupt |
| 3 | */ |
| 4 | |
| 5 | |
| 6 | #include <string.h> |
| 7 | #include <stdio.h> |
| 8 | #include <stdlib.h> |
| 9 | |
| 10 | #include "types.h" |
| 11 | #include "x6502.h" |
| 12 | #include "fce.h" |
| 13 | #include "sound.h" |
| 14 | #include "svga.h" |
| 15 | #include "netplay.h" |
| 16 | #include "general.h" |
| 17 | #include "endian.h" |
| 18 | #include "version.h" |
| 19 | #include "memory.h" |
| 20 | |
| 21 | #include "cart.h" |
| 22 | #include "nsf.h" |
| 23 | #include "fds.h" |
| 24 | #include "ines.h" |
| 25 | #include "unif.h" |
| 26 | #include "cheat.h" |
| 27 | |
| 28 | #define MMC5SPRVRAMADR(V) &MMC5SPRVPage[(V)>>10][(V)] |
| 29 | //#define MMC5BGVRAMADR(V) &MMC5BGVPage[(V)>>10][(V)] |
| 30 | #define VRAMADR(V) &VPage[(V)>>10][(V)] |
| 31 | |
| 32 | #define V_FLIP 0x80 |
| 33 | #define H_FLIP 0x40 |
| 34 | #define SP_BACK 0x20 |
| 35 | |
| 36 | uint8 SPRAM[0x100]; |
| 37 | static uint8 SPRBUF[0x100]; |
| 38 | |
| 39 | static uint8 sprlinebuf[256+8]; |
| 40 | extern void BGRender(uint8 *target); |
| 41 | extern int tosprite; |
| 42 | |
| 43 | |
| 44 | static int maxsprites=8; |
| 45 | |
| 46 | |
| 47 | void FCEUI_DisableSpriteLimitation(int a) |
| 48 | { |
| 49 | maxsprites=a?64:8; |
| 50 | } |
| 51 | |
| 52 | |
| 53 | //int printed=1; |
| 54 | typedef struct { |
| 55 | uint8 y,no,atr,x; |
| 56 | } SPR __attribute__((aligned(1))); |
| 57 | |
| 58 | typedef struct { |
| 59 | // uint8 ca[2],atr,x; |
| 60 | uint8 ca[2],atr,x; |
| 61 | // union { int z; } |
| 62 | |
| 63 | |
| 64 | } SPRB __attribute__((aligned(1))); |
| 65 | |
| 66 | |
| 67 | |
| 68 | static uint8 nosprites,SpriteBlurp; |
| 69 | |
| 70 | void FetchSpriteData(void) |
| 71 | { |
| 72 | SPR *spr; |
| 73 | uint8 H; |
| 74 | int n,vofs; |
| 75 | |
| 76 | spr=(SPR *)SPRAM; |
| 77 | H=8; |
| 78 | |
| 79 | nosprites=SpriteBlurp=0; |
| 80 | |
| 81 | vofs=(unsigned int)(PPU[0]&0x8&(((PPU[0]&0x20)^0x20)>>2))<<9; |
| 82 | H+=(PPU[0]&0x20)>>2; |
| 83 | |
| 84 | if(!PPU_hook) |
| 85 | for(n=63;n>=0;n--,spr++) |
| 86 | { |
| 87 | if((unsigned int)(scanline-spr->y)>=H) continue; |
| 88 | |
| 89 | if(nosprites<maxsprites) |
| 90 | { |
| 91 | if(n==63) SpriteBlurp=1; |
| 92 | |
| 93 | { |
| 94 | SPRB dst; |
| 95 | uint8 *C; |
| 96 | int t; |
| 97 | unsigned int vadr; |
| 98 | |
| 99 | t = (int)scanline-(spr->y); |
| 100 | |
| 101 | if (Sprite16) |
| 102 | vadr = ((spr->no&1)<<12) + ((spr->no&0xFE)<<4); |
| 103 | else |
| 104 | vadr = (spr->no<<4)+vofs; |
| 105 | |
| 106 | if (spr->atr&V_FLIP) |
| 107 | { |
| 108 | vadr+=7; |
| 109 | vadr-=t; |
| 110 | vadr+=(PPU[0]&0x20)>>1; |
| 111 | vadr-=t&8; |
| 112 | } |
| 113 | else |
| 114 | { |
| 115 | vadr+=t; |
| 116 | vadr+=t&8; |
| 117 | } |
| 118 | |
| 119 | /* Fix this geniestage hack */ |
| 120 | if(MMC5Hack && geniestage!=1) C = MMC5SPRVRAMADR(vadr); |
| 121 | else C = VRAMADR(vadr); |
| 122 | |
| 123 | |
| 124 | dst.ca[0]=C[0]; |
| 125 | dst.ca[1]=C[8]; |
| 126 | dst.x=spr->x; |
| 127 | dst.atr=spr->atr; |
| 128 | |
| 129 | |
| 130 | *(uint32 *)&SPRBUF[nosprites<<2]=*(uint32 *)&dst; |
| 131 | } |
| 132 | |
| 133 | nosprites++; |
| 134 | } |
| 135 | else |
| 136 | { |
| 137 | PPU_status|=0x20; |
| 138 | break; |
| 139 | } |
| 140 | } |
| 141 | else |
| 142 | for(n=63;n>=0;n--,spr++) |
| 143 | { |
| 144 | if((unsigned int)(scanline-spr->y)>=H) continue; |
| 145 | |
| 146 | if(nosprites<maxsprites) |
| 147 | { |
| 148 | if(n==63) SpriteBlurp=1; |
| 149 | |
| 150 | { |
| 151 | SPRB dst; |
| 152 | uint8 *C; |
| 153 | int t; |
| 154 | unsigned int vadr; |
| 155 | |
| 156 | t = (int)scanline-(spr->y); |
| 157 | |
| 158 | if (Sprite16) |
| 159 | vadr = ((spr->no&1)<<12) + ((spr->no&0xFE)<<4); |
| 160 | else |
| 161 | vadr = (spr->no<<4)+vofs; |
| 162 | |
| 163 | if (spr->atr&V_FLIP) |
| 164 | { |
| 165 | vadr+=7; |
| 166 | vadr-=t; |
| 167 | vadr+=(PPU[0]&0x20)>>1; |
| 168 | vadr-=t&8; |
| 169 | } |
| 170 | else |
| 171 | { |
| 172 | vadr+=t; |
| 173 | vadr+=t&8; |
| 174 | } |
| 175 | |
| 176 | if(MMC5Hack) C = MMC5SPRVRAMADR(vadr); |
| 177 | else C = VRAMADR(vadr); |
| 178 | dst.ca[0]=C[0]; |
| 179 | PPU_hook(vadr); |
| 180 | dst.ca[1]=C[8]; |
| 181 | PPU_hook(vadr|8); |
| 182 | dst.x=spr->x; |
| 183 | dst.atr=spr->atr; |
| 184 | |
| 185 | |
| 186 | *(uint32 *)&SPRBUF[nosprites<<2]=*(uint32 *)&dst; |
| 187 | } |
| 188 | |
| 189 | nosprites++; |
| 190 | } |
| 191 | else |
| 192 | { |
| 193 | PPU_status|=0x20; |
| 194 | break; |
| 195 | } |
| 196 | } |
| 197 | } |
| 198 | |
| 199 | #ifdef FRAMESKIP |
| 200 | extern int FSkip; |
| 201 | #endif |
| 202 | |
| 203 | void RefreshSprite(uint8 *target) |
| 204 | { |
| 205 | int n; |
| 206 | SPRB *spr; |
| 207 | uint8 *P=target; |
| 208 | |
| 209 | if(!nosprites) return; |
| 210 | #ifdef FRAMESKIP |
| 211 | if(FSkip) |
| 212 | { |
| 213 | if(!SpriteBlurp) |
| 214 | { |
| 215 | nosprites=0; |
| 216 | return; |
| 217 | } |
| 218 | else |
| 219 | nosprites=1; |
| 220 | } |
| 221 | #endif |
| 222 | |
| 223 | FCEU_dwmemset(sprlinebuf,0x80808080,256); |
| 224 | nosprites--; |
| 225 | spr = (SPRB*)SPRBUF+nosprites; |
| 226 | |
| 227 | for(n=nosprites;n>=0;n--,spr--) |
| 228 | { |
| 229 | register uint8 J,atr,c1,c2; |
| 230 | int x=spr->x; |
| 231 | uint8 *C; |
| 232 | uint8 *VB; |
| 233 | |
| 234 | P+=x; |
| 235 | |
| 236 | c1=((spr->ca[0]>>1)&0x55)|(spr->ca[1]&0xAA); |
| 237 | c2=(spr->ca[0]&0x55)|((spr->ca[1]<<1)&0xAA); |
| 238 | |
| 239 | J=spr->ca[0]|spr->ca[1]; |
| 240 | atr=spr->atr; |
| 241 | |
| 242 | if(J) |
| 243 | { |
| 244 | if(n==0 && SpriteBlurp && !(PPU_status&0x40)) |
| 245 | { |
| 246 | int z,ze=x+8; |
| 247 | if(ze>256) {ze=256;} |
| 248 | if(ScreenON && (scanline<FSettings.FirstSLine || scanline>FSettings.LastSLine |
| 249 | #ifdef FRAMESKIP |
| 250 | || FSkip |
| 251 | #endif |
| 252 | )) |
| 253 | BGRender(target); |
| 254 | |
| 255 | if(!(atr&H_FLIP)) |
| 256 | { |
| 257 | for(z=x;z<ze;z++) |
| 258 | { |
| 259 | if(J&(0x80>>(z-x))) |
| 260 | { |
| 261 | if(!(target[z]&64)) |
| 262 | tosprite=z; |
| 263 | } |
| 264 | } |
| 265 | } |
| 266 | else |
| 267 | { |
| 268 | for(z=x;z<ze;z++) |
| 269 | { |
| 270 | if(J&(1<<(z-x))) |
| 271 | { |
| 272 | if(!(target[z]&64)) |
| 273 | tosprite=z; |
| 274 | } |
| 275 | } |
| 276 | } |
| 277 | //FCEU_DispMessage("%d, %d:%d",scanline,x,tosprite); |
| 278 | } |
| 279 | |
| 280 | C = sprlinebuf+x; |
| 281 | VB = (PALRAM+0x10)+((atr&3)<<2); |
| 282 | |
| 283 | if(atr&SP_BACK) |
| 284 | { |
| 285 | if (atr&H_FLIP) |
| 286 | { |
| 287 | if (J&0x02) C[1]=VB[c1&3]|0x40; |
| 288 | if (J&0x01) *C=VB[c2&3]|0x40; |
| 289 | c1>>=2;c2>>=2; |
| 290 | if (J&0x08) C[3]=VB[c1&3]|0x40;; |
| 291 | if (J&0x04) C[2]=VB[c2&3]|0x40;; |
| 292 | c1>>=2;c2>>=2; |
| 293 | if (J&0x20) C[5]=VB[c1&3]|0x40;; |
| 294 | if (J&0x10) C[4]=VB[c2&3]|0x40;; |
| 295 | c1>>=2;c2>>=2; |
| 296 | if (J&0x80) C[7]=VB[c1]|0x40;; |
| 297 | if (J&0x40) C[6]=VB[c2]|0x40;; |
| 298 | } else { |
| 299 | if (J&0x02) C[6]=VB[c1&3]|0x40; |
| 300 | if (J&0x01) C[7]=VB[c2&3]|0x40; |
| 301 | c1>>=2;c2>>=2; |
| 302 | if (J&0x08) C[4]=VB[c1&3]|0x40; |
| 303 | if (J&0x04) C[5]=VB[c2&3]|0x40; |
| 304 | c1>>=2;c2>>=2; |
| 305 | if (J&0x20) C[2]=VB[c1&3]|0x40; |
| 306 | if (J&0x10) C[3]=VB[c2&3]|0x40; |
| 307 | c1>>=2;c2>>=2; |
| 308 | if (J&0x80) *C=VB[c1]|0x40; |
| 309 | if (J&0x40) C[1]=VB[c2]|0x40; |
| 310 | } |
| 311 | } else { |
| 312 | if (atr&H_FLIP) |
| 313 | { |
| 314 | if (J&0x02) C[1]=VB[(c1&3)]; |
| 315 | if (J&0x01) *C=VB[(c2&3)]; |
| 316 | c1>>=2;c2>>=2; |
| 317 | if (J&0x08) C[3]=VB[(c1&3)]; |
| 318 | if (J&0x04) C[2]=VB[(c2&3)]; |
| 319 | c1>>=2;c2>>=2; |
| 320 | if (J&0x20) C[5]=VB[(c1&3)]; |
| 321 | if (J&0x10) C[4]=VB[(c2&3)]; |
| 322 | c1>>=2;c2>>=2; |
| 323 | if (J&0x80) C[7]=VB[c1]; |
| 324 | if (J&0x40) C[6]=VB[c2]; |
| 325 | }else{ |
| 326 | if (J&0x02) C[6]=VB[(c1&3)]; |
| 327 | if (J&0x01) C[7]=VB[(c2&3)]; |
| 328 | c1>>=2;c2>>=2; |
| 329 | if (J&0x08) C[4]=VB[(c1&3)]; |
| 330 | if (J&0x04) C[5]=VB[(c2&3)]; |
| 331 | c1>>=2;c2>>=2; |
| 332 | if (J&0x20) C[2]=VB[(c1&3)]; |
| 333 | if (J&0x10) C[3]=VB[(c2&3)]; |
| 334 | c1>>=2;c2>>=2; |
| 335 | if (J&0x80) *C=VB[c1]; |
| 336 | if (J&0x40) C[1]=VB[c2]; |
| 337 | } |
| 338 | } |
| 339 | } |
| 340 | P-=x; |
| 341 | } |
| 342 | |
| 343 | nosprites=0; |
| 344 | #ifdef FRAMESKIP |
| 345 | if(FSkip) return; |
| 346 | #endif |
| 347 | |
| 348 | { |
| 349 | uint8 n=((PPU[1]&4)^4)<<1; |
| 350 | loopskie: |
| 351 | { |
| 352 | uint32 t=*(uint32 *)(sprlinebuf+n); |
| 353 | if(t!=0x80808080) |
| 354 | { |
| 355 | #ifdef LSB_FIRST |
| 356 | if(!(t&0x80)) |
| 357 | { |
| 358 | if(!(t&0x40)) // Normal sprite |
| 359 | P[n]=sprlinebuf[n]; |
| 360 | else if(P[n]&64) // behind bg sprite |
| 361 | P[n]=sprlinebuf[n]; |
| 362 | } |
| 363 | |
| 364 | if(!(t&0x8000)) |
| 365 | { |
| 366 | if(!(t&0x4000)) // Normal sprite |
| 367 | P[n+1]=(sprlinebuf+1)[n]; |
| 368 | else if(P[n+1]&64) // behind bg sprite |
| 369 | P[n+1]=(sprlinebuf+1)[n]; |
| 370 | } |
| 371 | |
| 372 | if(!(t&0x800000)) |
| 373 | { |
| 374 | if(!(t&0x400000)) // Normal sprite |
| 375 | P[n+2]=(sprlinebuf+2)[n]; |
| 376 | else if(P[n+2]&64) // behind bg sprite |
| 377 | P[n+2]=(sprlinebuf+2)[n]; |
| 378 | } |
| 379 | |
| 380 | if(!(t&0x80000000)) |
| 381 | { |
| 382 | if(!(t&0x40000000)) // Normal sprite |
| 383 | P[n+3]=(sprlinebuf+3)[n]; |
| 384 | else if(P[n+3]&64) // behind bg sprite |
| 385 | P[n+3]=(sprlinebuf+3)[n]; |
| 386 | } |
| 387 | #else |
| 388 | if(!(t&0x80000000)) |
| 389 | { |
| 390 | if(!(t&0x40)) // Normal sprite |
| 391 | P[n]=sprlinebuf[n]; |
| 392 | else if(P[n]&64) // behind bg sprite |
| 393 | P[n]=sprlinebuf[n]; |
| 394 | } |
| 395 | |
| 396 | if(!(t&0x800000)) |
| 397 | { |
| 398 | if(!(t&0x4000)) // Normal sprite |
| 399 | P[n+1]=(sprlinebuf+1)[n]; |
| 400 | else if(P[n+1]&64) // behind bg sprite |
| 401 | P[n+1]=(sprlinebuf+1)[n]; |
| 402 | } |
| 403 | |
| 404 | if(!(t&0x8000)) |
| 405 | { |
| 406 | if(!(t&0x400000)) // Normal sprite |
| 407 | P[n+2]=(sprlinebuf+2)[n]; |
| 408 | else if(P[n+2]&64) // behind bg sprite |
| 409 | P[n+2]=(sprlinebuf+2)[n]; |
| 410 | } |
| 411 | |
| 412 | if(!(t&0x80)) |
| 413 | { |
| 414 | if(!(t&0x40000000)) // Normal sprite |
| 415 | P[n+3]=(sprlinebuf+3)[n]; |
| 416 | else if(P[n+3]&64) // behind bg sprite |
| 417 | P[n+3]=(sprlinebuf+3)[n]; |
| 418 | } |
| 419 | #endif |
| 420 | } |
| 421 | } |
| 422 | n+=4; |
| 423 | if(n) goto loopskie; |
| 424 | } |
| 425 | } |
| 426 | |
| 427 | |
| 428 | |
| 429 | |
| 430 | |
| 431 | /* |
| 432 | void FetchSpriteData(void) |
| 433 | { |
| 434 | uint8 ns,sb; |
| 435 | SPR *spr; |
| 436 | uint8 H; |
| 437 | int n; |
| 438 | int vofs; |
| 439 | uint8 P0=PPU[0]; |
| 440 | |
| 441 | |
| 442 | spr=(SPR *)SPRAM; |
| 443 | H=8; |
| 444 | |
| 445 | ns=sb=0; |
| 446 | |
| 447 | vofs=(unsigned int)(P0&0x8&(((P0&0x20)^0x20)>>2))<<9; |
| 448 | H+=(P0&0x20)>>2; |
| 449 | |
| 450 | if(!PPU_hook) |
| 451 | for(n=63;n>=0;n--,spr++) |
| 452 | { |
| 453 | if((unsigned int)(scanline-spr->y)>=H) continue; |
| 454 | //printf("%d, %u\n",scanline,(unsigned int)(scanline-spr->y)); |
| 455 | if(ns<maxsprites) |
| 456 | { |
| 457 | if(n==63) sb=1; |
| 458 | |
| 459 | { |
| 460 | SPRB dst; |
| 461 | uint8 *C; |
| 462 | int t; |
| 463 | unsigned int vadr; |
| 464 | |
| 465 | t = (int)scanline-(spr->y); |
| 466 | |
| 467 | if (Sprite16) |
| 468 | vadr = ((spr->no&1)<<12) + ((spr->no&0xFE)<<4); |
| 469 | else |
| 470 | vadr = (spr->no<<4)+vofs; |
| 471 | |
| 472 | if (spr->atr&V_FLIP) |
| 473 | { |
| 474 | vadr+=7; |
| 475 | vadr-=t; |
| 476 | vadr+=(P0&0x20)>>1; |
| 477 | vadr-=t&8; |
| 478 | } |
| 479 | else |
| 480 | { |
| 481 | vadr+=t; |
| 482 | vadr+=t&8; |
| 483 | } |
| 484 | |
| 485 | // Fix this geniestage hack |
| 486 | if(MMC5Hack && geniestage!=1) C = MMC5SPRVRAMADR(vadr); |
| 487 | else C = VRAMADR(vadr); |
| 488 | |
| 489 | |
| 490 | dst.ca[0]=C[0]; |
| 491 | dst.ca[1]=C[8]; |
| 492 | dst.x=spr->x; |
| 493 | dst.atr=spr->atr; |
| 494 | |
| 495 | *(uint32 *)&SPRBUF[ns<<2]=*(uint32 *)&dst; |
| 496 | } |
| 497 | |
| 498 | ns++; |
| 499 | } |
| 500 | else |
| 501 | { |
| 502 | PPU_status|=0x20; |
| 503 | break; |
| 504 | } |
| 505 | } |
| 506 | else |
| 507 | for(n=63;n>=0;n--,spr++) |
| 508 | { |
| 509 | if((unsigned int)(scanline-spr->y)>=H) continue; |
| 510 | |
| 511 | if(ns<maxsprites) |
| 512 | { |
| 513 | if(n==63) sb=1; |
| 514 | |
| 515 | { |
| 516 | SPRB dst; |
| 517 | uint8 *C; |
| 518 | int t; |
| 519 | unsigned int vadr; |
| 520 | |
| 521 | t = (int)scanline-(spr->y); |
| 522 | |
| 523 | if (Sprite16) |
| 524 | vadr = ((spr->no&1)<<12) + ((spr->no&0xFE)<<4); |
| 525 | else |
| 526 | vadr = (spr->no<<4)+vofs; |
| 527 | |
| 528 | if (spr->atr&V_FLIP) |
| 529 | { |
| 530 | vadr+=7; |
| 531 | vadr-=t; |
| 532 | vadr+=(P0&0x20)>>1; |
| 533 | vadr-=t&8; |
| 534 | } |
| 535 | else |
| 536 | { |
| 537 | vadr+=t; |
| 538 | vadr+=t&8; |
| 539 | } |
| 540 | |
| 541 | if(MMC5Hack) C = MMC5SPRVRAMADR(vadr); |
| 542 | else C = VRAMADR(vadr); |
| 543 | dst.ca[0]=C[0]; |
| 544 | if(ns<8) |
| 545 | { |
| 546 | PPU_hook(0x2000); |
| 547 | PPU_hook(vadr); |
| 548 | } |
| 549 | dst.ca[1]=C[8]; |
| 550 | dst.x=spr->x; |
| 551 | dst.atr=spr->atr; |
| 552 | |
| 553 | |
| 554 | *(uint32 *)&SPRBUF[ns<<2]=*(uint32 *)&dst; |
| 555 | } |
| 556 | |
| 557 | ns++; |
| 558 | } |
| 559 | else |
| 560 | { |
| 561 | PPU_status|=0x20; |
| 562 | break; |
| 563 | } |
| 564 | } |
| 565 | //if(ns>=7) |
| 566 | //printf("%d %d\n",scanline,ns); |
| 567 | if(ns>8) PPU_status|=0x20; // Handle case when >8 sprites per |
| 568 | // scanline option is enabled. |
| 569 | else if(PPU_hook) |
| 570 | { |
| 571 | for(n=0;n<(8-ns);n++) |
| 572 | { |
| 573 | PPU_hook(0x2000); |
| 574 | PPU_hook(vofs); |
| 575 | } |
| 576 | } |
| 577 | numsprites=ns; |
| 578 | SpriteBlurp=sb; |
| 579 | } |
| 580 | |
| 581 | |
| 582 | |
| 583 | void RefreshSprite(uint8 *target) |
| 584 | { |
| 585 | |
| 586 | int n,sprindex; |
| 587 | SPRB *spr; |
| 588 | uint8 *P=target; |
| 589 | |
| 590 | //if (printed) { printf("SPRB: %d SPR: %d\n", sizeof(SPRB), sizeof(SPR)); printed=0; } |
| 591 | if(!numsprites) return; |
| 592 | |
| 593 | FCEU_dwmemset(sprlinebuf,0x80808080,256); |
| 594 | |
| 595 | numsprites--; |
| 596 | sprindex=numsprites; |
| 597 | spr = (SPRB*)SPRBUF; |
| 598 | |
| 599 | // for(n=nosprites;n>=0;n--,spr--) |
| 600 | for(n=numsprites;n>=0;n--,sprindex--) |
| 601 | { |
| 602 | uint8 J,atr,c1,c2; |
| 603 | int x=spr[sprindex].x; |
| 604 | uint8 *C; |
| 605 | uint8 *VB; |
| 606 | |
| 607 | P+=x; |
| 608 | |
| 609 | c1=((spr[sprindex].ca[0]>>1)&0x55)|(spr[sprindex].ca[1]&0xAA); |
| 610 | c2=(spr[sprindex].ca[0]&0x55)|((spr[sprindex].ca[1]<<1)&0xAA); |
| 611 | |
| 612 | J=spr[sprindex].ca[0]|spr[sprindex].ca[1]; |
| 613 | atr=spr[sprindex].atr; |
| 614 | |
| 615 | if(J) |
| 616 | { |
| 617 | if(n==0 && SpriteBlurp && !(PPU_status&0x40)) |
| 618 | { |
| 619 | int z,ze=x+8; |
| 620 | if(ze>256) {ze=256;} |
| 621 | if(ScreenON && (scanline<FSettings.FirstSLine || scanline>FSettings.LastSLine |
| 622 | #ifdef FRAMESKIP |
| 623 | || FSkip |
| 624 | #endif |
| 625 | )) |
| 626 | // nothing wrong with this |
| 627 | BGRender(target); |
| 628 | |
| 629 | if(!(atr&H_FLIP)) |
| 630 | { |
| 631 | for(z=x;z<ze;z++) |
| 632 | { |
| 633 | if(J&(0x80>>(z-x))) |
| 634 | { |
| 635 | if(!(target[z]&64)) |
| 636 | tosprite=z; |
| 637 | } |
| 638 | } |
| 639 | } |
| 640 | else |
| 641 | { |
| 642 | for(z=x;z<ze;z++) |
| 643 | { |
| 644 | if(J&(1<<(z-x))) |
| 645 | { |
| 646 | if(!(target[z]&64)) |
| 647 | tosprite=z; |
| 648 | } |
| 649 | } |
| 650 | } |
| 651 | //FCEU_DispMessage("%d, %d:%d",scanline,x,tosprite); |
| 652 | } |
| 653 | |
| 654 | //C = sprlinebuf+(uint8)x; |
| 655 | C = &(sprlinebuf[(uint8)x]); |
| 656 | VB = (PALRAM+0x10)+((atr&3)<<2); |
| 657 | |
| 658 | if(atr&SP_BACK) |
| 659 | { |
| 660 | if (atr&H_FLIP) |
| 661 | { |
| 662 | if (J&0x02) C[1]=VB[c1&3]|0x40; |
| 663 | if (J&0x01) *C=VB[c2&3]|0x40; |
| 664 | c1>>=2;c2>>=2; |
| 665 | if (J&0x08) C[3]=VB[c1&3]|0x40; |
| 666 | if (J&0x04) C[2]=VB[c2&3]|0x40; |
| 667 | c1>>=2;c2>>=2; |
| 668 | if (J&0x20) C[5]=VB[c1&3]|0x40; |
| 669 | if (J&0x10) C[4]=VB[c2&3]|0x40; |
| 670 | c1>>=2;c2>>=2; |
| 671 | if (J&0x80) C[7]=VB[c1]|0x40; |
| 672 | if (J&0x40) C[6]=VB[c2]|0x40; |
| 673 | } else { |
| 674 | if (J&0x02) C[6]=VB[c1&3]|0x40; |
| 675 | if (J&0x01) C[7]=VB[c2&3]|0x40; |
| 676 | c1>>=2;c2>>=2; |
| 677 | if (J&0x08) C[4]=VB[c1&3]|0x40; |
| 678 | if (J&0x04) C[5]=VB[c2&3]|0x40; |
| 679 | c1>>=2;c2>>=2; |
| 680 | if (J&0x20) C[2]=VB[c1&3]|0x40; |
| 681 | if (J&0x10) C[3]=VB[c2&3]|0x40; |
| 682 | c1>>=2;c2>>=2; |
| 683 | if (J&0x80) *C=VB[c1]|0x40; |
| 684 | if (J&0x40) C[1]=VB[c2]|0x40; |
| 685 | } |
| 686 | } else { |
| 687 | if (atr&H_FLIP) |
| 688 | { |
| 689 | if (J&0x02) C[1]=VB[(c1&3)]; |
| 690 | if (J&0x01) *C=VB[(c2&3)]; |
| 691 | c1>>=2;c2>>=2; |
| 692 | if (J&0x08) C[3]=VB[(c1&3)]; |
| 693 | if (J&0x04) C[2]=VB[(c2&3)]; |
| 694 | c1>>=2;c2>>=2; |
| 695 | if (J&0x20) C[5]=VB[(c1&3)]; |
| 696 | if (J&0x10) C[4]=VB[(c2&3)]; |
| 697 | c1>>=2;c2>>=2; |
| 698 | if (J&0x80) C[7]=VB[c1]; |
| 699 | if (J&0x40) C[6]=VB[c2]; |
| 700 | }else{ |
| 701 | if (J&0x02) C[6]=VB[(c1&3)]; |
| 702 | if (J&0x01) C[7]=VB[(c2&3)]; |
| 703 | c1>>=2;c2>>=2; |
| 704 | if (J&0x08) C[4]=VB[(c1&3)]; |
| 705 | if (J&0x04) C[5]=VB[(c2&3)]; |
| 706 | c1>>=2;c2>>=2; |
| 707 | if (J&0x20) C[2]=VB[(c1&3)]; |
| 708 | if (J&0x10) C[3]=VB[(c2&3)]; |
| 709 | c1>>=2;c2>>=2; |
| 710 | if (J&0x80) *C=VB[c1]; |
| 711 | if (J&0x40) C[1]=VB[c2]; |
| 712 | } |
| 713 | } |
| 714 | } |
| 715 | P-=x; |
| 716 | } |
| 717 | |
| 718 | numsprites=0; |
| 719 | #ifdef FRAMESKIP |
| 720 | if(FSkip) return; |
| 721 | #endif |
| 722 | |
| 723 | { |
| 724 | uint8 n=((PPU[1]&4)^4)<<1; |
| 725 | loopskie: |
| 726 | { |
| 727 | uint32 t=*((uint32 *)(&(sprlinebuf[n]))); |
| 728 | if(t!=0x80808080) |
| 729 | { |
| 730 | #ifdef LSB_FIRST |
| 731 | if(!(t&0x80)) |
| 732 | { |
| 733 | if(!(t&0x40)) // Normal sprite |
| 734 | P[n]=sprlinebuf[n]; |
| 735 | else if(P[n]&64) // behind bg sprite |
| 736 | P[n]=sprlinebuf[n]; |
| 737 | } |
| 738 | |
| 739 | if(!(t&0x8000)) |
| 740 | { |
| 741 | if(!(t&0x4000)) // Normal sprite |
| 742 | P[n+1]=(sprlinebuf+1)[n]; |
| 743 | else if(P[n+1]&64) // behind bg sprite |
| 744 | P[n+1]=(sprlinebuf+1)[n]; |
| 745 | } |
| 746 | |
| 747 | if(!(t&0x800000)) |
| 748 | { |
| 749 | if(!(t&0x400000)) // Normal sprite |
| 750 | P[n+2]=(sprlinebuf+2)[n]; |
| 751 | else if(P[n+2]&64) // behind bg sprite |
| 752 | P[n+2]=(sprlinebuf+2)[n]; |
| 753 | } |
| 754 | |
| 755 | if(!(t&0x80000000)) |
| 756 | { |
| 757 | if(!(t&0x40000000)) // Normal sprite |
| 758 | P[n+3]=(sprlinebuf+3)[n]; |
| 759 | else if(P[n+3]&64) // behind bg sprite |
| 760 | P[n+3]=(sprlinebuf+3)[n]; |
| 761 | } |
| 762 | #else |
| 763 | if(!(t&0x80000000)) |
| 764 | { |
| 765 | if(!(t&0x40)) // Normal sprite |
| 766 | P[n]=sprlinebuf[n]; |
| 767 | else if(P[n]&64) // behind bg sprite |
| 768 | P[n]=sprlinebuf[n]; |
| 769 | } |
| 770 | |
| 771 | if(!(t&0x800000)) |
| 772 | { |
| 773 | if(!(t&0x4000)) // Normal sprite |
| 774 | P[n+1]=(sprlinebuf+1)[n]; |
| 775 | else if(P[n+1]&64) // behind bg sprite |
| 776 | P[n+1]=(sprlinebuf+1)[n]; |
| 777 | } |
| 778 | |
| 779 | if(!(t&0x8000)) |
| 780 | { |
| 781 | if(!(t&0x400000)) // Normal sprite |
| 782 | P[n+2]=(sprlinebuf+2)[n]; |
| 783 | else if(P[n+2]&64) // behind bg sprite |
| 784 | P[n+2]=(sprlinebuf+2)[n]; |
| 785 | } |
| 786 | |
| 787 | if(!(t&0x80)) |
| 788 | { |
| 789 | if(!(t&0x40000000)) // Normal sprite |
| 790 | P[n+3]=(sprlinebuf+3)[n]; |
| 791 | else if(P[n+3]&64) // behind bg sprite |
| 792 | P[n+3]=(sprlinebuf+3)[n]; |
| 793 | } |
| 794 | #endif |
| 795 | } |
| 796 | } |
| 797 | n+=4; |
| 798 | if(n) goto loopskie; |
| 799 | } |
| 800 | } |
| 801 | |
| 802 | |
| 803 | */ |