| 1 | /*\r |
| 2 | * line renderer\r |
| 3 | * (c) Copyright Dave, 2004\r |
| 4 | * (C) notaz, 2006-2010\r |
| 5 | *\r |
| 6 | * This work is licensed under the terms of MAME license.\r |
| 7 | * See COPYING file in the top-level directory.\r |
| 8 | */\r |
| 9 | /*\r |
| 10 | * The renderer has 4 modes now:\r |
| 11 | * - normal\r |
| 12 | * - shadow/hilight (s/h)\r |
| 13 | * - "sonic mode" for midline palette changes (8bit mode only)\r |
| 14 | * - accurate sprites (AS) [+ s/h]\r |
| 15 | *\r |
| 16 | * s/h uses upper bits for both priority and shadow/hilight flags.\r |
| 17 | * "sonic mode" is autodetected, shadow/hilight is enabled by emulated game.\r |
| 18 | * AS is enabled by user and takes priority over "sonic mode".\r |
| 19 | *\r |
| 20 | * since renderer always draws line in 8bit mode, there are 2 spare bits:\r |
| 21 | * b \ mode: s/h sonic\r |
| 22 | * 00 normal pal index\r |
| 23 | * 01 shadow pal index\r |
| 24 | * 10 hilight+op spr pal index\r |
| 25 | * 11 shadow +op spr pal index\r |
| 26 | *\r |
| 27 | * not handled properly:\r |
| 28 | * - hilight op on shadow tile\r |
| 29 | */\r |
| 30 | \r |
| 31 | #include "pico_int.h"\r |
| 32 | \r |
| 33 | int (*PicoScanBegin)(unsigned int num) = NULL;\r |
| 34 | int (*PicoScanEnd) (unsigned int num) = NULL;\r |
| 35 | \r |
| 36 | static unsigned char DefHighCol[8+320+8];\r |
| 37 | static unsigned char *HighColBase = DefHighCol;\r |
| 38 | static int HighColIncrement;\r |
| 39 | \r |
| 40 | static unsigned int DefOutBuff[320*2/2];\r |
| 41 | void *DrawLineDestBase = DefOutBuff;\r |
| 42 | int DrawLineDestIncrement;\r |
| 43 | \r |
| 44 | static int HighCacheA[41+1]; // caches for high layers\r |
| 45 | static int HighCacheB[41+1];\r |
| 46 | static int HighPreSpr[80*2+1]; // slightly preprocessed sprites\r |
| 47 | \r |
| 48 | #define LF_PLANE_1 (1 << 0)\r |
| 49 | #define LF_SH (1 << 1) // must be = 2\r |
| 50 | #define LF_FORCE (1 << 2)\r |
| 51 | \r |
| 52 | #define SPRL_HAVE_HI 0x80 // have hi priority sprites\r |
| 53 | #define SPRL_HAVE_LO 0x40 // *lo*\r |
| 54 | #define SPRL_MAY_HAVE_OP 0x20 // may have operator sprites on the line\r |
| 55 | #define SPRL_LO_ABOVE_HI 0x10 // low priority sprites may be on top of hi\r |
| 56 | unsigned char HighLnSpr[240][3 + MAX_LINE_SPRITES]; // sprite_count, ^flags, tile_count, [spritep]...\r |
| 57 | \r |
| 58 | int rendstatus_old;\r |
| 59 | int rendlines;\r |
| 60 | \r |
| 61 | static int skip_next_line=0;\r |
| 62 | \r |
| 63 | struct TileStrip\r |
| 64 | {\r |
| 65 | int nametab; // Position in VRAM of name table (for this tile line)\r |
| 66 | int line; // Line number in pixels 0x000-0x3ff within the virtual tilemap\r |
| 67 | int hscroll; // Horizontal scroll value in pixels for the line\r |
| 68 | int xmask; // X-Mask (0x1f - 0x7f) for horizontal wraparound in the tilemap\r |
| 69 | int *hc; // cache for high tile codes and their positions\r |
| 70 | int cells; // cells (tiles) to draw (32 col mode doesn't need to update whole 320)\r |
| 71 | };\r |
| 72 | \r |
| 73 | // stuff available in asm:\r |
| 74 | #ifdef _ASM_DRAW_C\r |
| 75 | void DrawWindow(int tstart, int tend, int prio, int sh,\r |
| 76 | struct PicoEState *est);\r |
| 77 | void DrawAllSprites(unsigned char *sprited, int prio, int sh,\r |
| 78 | struct PicoEState *est);\r |
| 79 | void DrawTilesFromCache(int *hc, int sh, int rlim,\r |
| 80 | struct PicoEState *est);\r |
| 81 | void DrawSpritesSHi(unsigned char *sprited, struct PicoEState *est);\r |
| 82 | void DrawLayer(int plane_sh, int *hcache, int cellskip, int maxcells,\r |
| 83 | struct PicoEState *est);\r |
| 84 | void *blockcpy(void *dst, const void *src, size_t n);\r |
| 85 | void blockcpy_or(void *dst, void *src, size_t n, int pat);\r |
| 86 | #else\r |
| 87 | // utility\r |
| 88 | void blockcpy_or(void *dst, void *src, size_t n, int pat)\r |
| 89 | {\r |
| 90 | unsigned char *pd = dst, *ps = src;\r |
| 91 | for (; n; n--)\r |
| 92 | *pd++ = (unsigned char) (*ps++ | pat);\r |
| 93 | }\r |
| 94 | #define blockcpy memcpy\r |
| 95 | #endif\r |
| 96 | \r |
| 97 | #define TileNormMaker_(pix_func) \\r |
| 98 | { \\r |
| 99 | unsigned int t; \\r |
| 100 | \\r |
| 101 | t = (pack&0x0000f000)>>12; pix_func(0); \\r |
| 102 | t = (pack&0x00000f00)>> 8; pix_func(1); \\r |
| 103 | t = (pack&0x000000f0)>> 4; pix_func(2); \\r |
| 104 | t = (pack&0x0000000f) ; pix_func(3); \\r |
| 105 | t = (pack&0xf0000000)>>28; pix_func(4); \\r |
| 106 | t = (pack&0x0f000000)>>24; pix_func(5); \\r |
| 107 | t = (pack&0x00f00000)>>20; pix_func(6); \\r |
| 108 | t = (pack&0x000f0000)>>16; pix_func(7); \\r |
| 109 | }\r |
| 110 | \r |
| 111 | #define TileFlipMaker_(pix_func) \\r |
| 112 | { \\r |
| 113 | unsigned int t; \\r |
| 114 | \\r |
| 115 | t = (pack&0x000f0000)>>16; pix_func(0); \\r |
| 116 | t = (pack&0x00f00000)>>20; pix_func(1); \\r |
| 117 | t = (pack&0x0f000000)>>24; pix_func(2); \\r |
| 118 | t = (pack&0xf0000000)>>28; pix_func(3); \\r |
| 119 | t = (pack&0x0000000f) ; pix_func(4); \\r |
| 120 | t = (pack&0x000000f0)>> 4; pix_func(5); \\r |
| 121 | t = (pack&0x00000f00)>> 8; pix_func(6); \\r |
| 122 | t = (pack&0x0000f000)>>12; pix_func(7); \\r |
| 123 | }\r |
| 124 | \r |
| 125 | #define TileNormMaker(funcname, pix_func) \\r |
| 126 | static void funcname(unsigned char *pd, unsigned int pack, int pal) \\r |
| 127 | TileNormMaker_(pix_func)\r |
| 128 | \r |
| 129 | #define TileFlipMaker(funcname, pix_func) \\r |
| 130 | static void funcname(unsigned char *pd, unsigned int pack, int pal) \\r |
| 131 | TileFlipMaker_(pix_func)\r |
| 132 | \r |
| 133 | #define TileNormMakerAS(funcname, pix_func) \\r |
| 134 | static void funcname(unsigned char *pd, unsigned char *mb, unsigned int pack, int pal) \\r |
| 135 | TileNormMaker_(pix_func)\r |
| 136 | \r |
| 137 | #define TileFlipMakerAS(funcname, pix_func) \\r |
| 138 | static void funcname(unsigned char *pd, unsigned char *mb, unsigned int pack, int pal) \\r |
| 139 | TileFlipMaker_(pix_func)\r |
| 140 | \r |
| 141 | #define pix_just_write(x) \\r |
| 142 | if (t) pd[x]=pal|t\r |
| 143 | \r |
| 144 | TileNormMaker(TileNorm,pix_just_write)\r |
| 145 | TileFlipMaker(TileFlip,pix_just_write)\r |
| 146 | \r |
| 147 | #ifndef _ASM_DRAW_C\r |
| 148 | \r |
| 149 | // draw a sprite pixel, process operator colors\r |
| 150 | #define pix_sh(x) \\r |
| 151 | if (!t); \\r |
| 152 | else if (t>=0xe) pd[x]=(pd[x]&0x3f)|(t<<6); /* c0 shadow, 80 hilight */ \\r |
| 153 | else pd[x]=pal|t\r |
| 154 | \r |
| 155 | TileNormMaker(TileNormSH, pix_sh)\r |
| 156 | TileFlipMaker(TileFlipSH, pix_sh)\r |
| 157 | \r |
| 158 | // draw a sprite pixel, mark operator colors\r |
| 159 | #define pix_sh_markop(x) \\r |
| 160 | if (!t); \\r |
| 161 | else if (t>=0xe) pd[x]|=0x80; \\r |
| 162 | else pd[x]=pal|t\r |
| 163 | \r |
| 164 | TileNormMaker(TileNormSH_markop, pix_sh_markop)\r |
| 165 | TileFlipMaker(TileFlipSH_markop, pix_sh_markop)\r |
| 166 | \r |
| 167 | #endif\r |
| 168 | \r |
| 169 | // process operator pixels only, apply only on low pri tiles and other op pixels\r |
| 170 | #define pix_sh_onlyop(x) \\r |
| 171 | if (t>=0xe && (pd[x]&0xc0)) \\r |
| 172 | pd[x]=(pd[x]&0x3f)|(t<<6); /* c0 shadow, 80 hilight */ \\r |
| 173 | \r |
| 174 | #ifndef _ASM_DRAW_C\r |
| 175 | \r |
| 176 | TileNormMaker(TileNormSH_onlyop_lp, pix_sh_onlyop)\r |
| 177 | TileFlipMaker(TileFlipSH_onlyop_lp, pix_sh_onlyop)\r |
| 178 | \r |
| 179 | #endif\r |
| 180 | \r |
| 181 | // draw a sprite pixel (AS)\r |
| 182 | #define pix_as(x) \\r |
| 183 | if (t & mb[x]) mb[x] = 0, pd[x] = pal | t\r |
| 184 | \r |
| 185 | TileNormMakerAS(TileNormAS, pix_as)\r |
| 186 | TileFlipMakerAS(TileFlipAS, pix_as)\r |
| 187 | \r |
| 188 | // draw a sprite pixel, process operator colors (AS)\r |
| 189 | #define pix_sh_as(x) \\r |
| 190 | if (t & mb[x]) { \\r |
| 191 | mb[x] = 0; \\r |
| 192 | if (t>=0xe) pd[x]=(pd[x]&0x3f)|(t<<6); /* c0 shadow, 80 hilight */ \\r |
| 193 | else pd[x] = pal | t; \\r |
| 194 | }\r |
| 195 | \r |
| 196 | TileNormMakerAS(TileNormSH_AS, pix_sh_as)\r |
| 197 | TileFlipMakerAS(TileFlipSH_AS, pix_sh_as)\r |
| 198 | \r |
| 199 | #define pix_sh_as_onlyop(x) \\r |
| 200 | if (t & mb[x]) { \\r |
| 201 | mb[x] = 0; \\r |
| 202 | pix_sh_onlyop(x); \\r |
| 203 | }\r |
| 204 | \r |
| 205 | TileNormMakerAS(TileNormSH_AS_onlyop_lp, pix_sh_as_onlyop)\r |
| 206 | TileFlipMakerAS(TileFlipSH_AS_onlyop_lp, pix_sh_as_onlyop)\r |
| 207 | \r |
| 208 | // mark pixel as sprite pixel (AS)\r |
| 209 | #define pix_sh_as_onlymark(x) \\r |
| 210 | if (t) mb[x] = 0\r |
| 211 | \r |
| 212 | TileNormMakerAS(TileNormAS_onlymark, pix_sh_as_onlymark)\r |
| 213 | TileFlipMakerAS(TileFlipAS_onlymark, pix_sh_as_onlymark)\r |
| 214 | \r |
| 215 | // forced both layer draw (through debug reg)\r |
| 216 | #define pix_and(x) \\r |
| 217 | pd[x] = (pd[x] & 0xc0) | (pd[x] & (pal | t))\r |
| 218 | \r |
| 219 | TileNormMaker(TileNorm_and, pix_and)\r |
| 220 | TileFlipMaker(TileFlip_and, pix_and)\r |
| 221 | \r |
| 222 | // --------------------------------------------\r |
| 223 | \r |
| 224 | #ifndef _ASM_DRAW_C\r |
| 225 | static void DrawStrip(struct TileStrip *ts, int lflags, int cellskip)\r |
| 226 | {\r |
| 227 | unsigned char *pd = Pico.est.HighCol;\r |
| 228 | int tilex,dx,ty,code=0,addr=0,cells;\r |
| 229 | int oldcode=-1,blank=-1; // The tile we know is blank\r |
| 230 | int pal=0,sh;\r |
| 231 | \r |
| 232 | // Draw tiles across screen:\r |
| 233 | sh = (lflags & LF_SH) << 5; // 0x40\r |
| 234 | tilex=((-ts->hscroll)>>3)+cellskip;\r |
| 235 | ty=(ts->line&7)<<1; // Y-Offset into tile\r |
| 236 | dx=((ts->hscroll-1)&7)+1;\r |
| 237 | cells = ts->cells - cellskip;\r |
| 238 | if(dx != 8) cells++; // have hscroll, need to draw 1 cell more\r |
| 239 | dx+=cellskip<<3;\r |
| 240 | \r |
| 241 | for (; cells > 0; dx+=8, tilex++, cells--)\r |
| 242 | {\r |
| 243 | unsigned int pack;\r |
| 244 | \r |
| 245 | code = PicoMem.vram[ts->nametab + (tilex & ts->xmask)];\r |
| 246 | if (code == blank)\r |
| 247 | continue;\r |
| 248 | if ((code >> 15) | (lflags & LF_FORCE)) { // high priority tile\r |
| 249 | int cval = code | (dx<<16) | (ty<<25);\r |
| 250 | if(code&0x1000) cval^=7<<26;\r |
| 251 | *ts->hc++ = cval; // cache it\r |
| 252 | continue;\r |
| 253 | }\r |
| 254 | \r |
| 255 | if (code!=oldcode) {\r |
| 256 | oldcode = code;\r |
| 257 | // Get tile address/2:\r |
| 258 | addr=(code&0x7ff)<<4;\r |
| 259 | addr+=ty;\r |
| 260 | if (code&0x1000) addr^=0xe; // Y-flip\r |
| 261 | \r |
| 262 | pal=((code>>9)&0x30)|sh;\r |
| 263 | }\r |
| 264 | \r |
| 265 | pack = *(unsigned int *)(PicoMem.vram + addr);\r |
| 266 | if (!pack) {\r |
| 267 | blank = code;\r |
| 268 | continue;\r |
| 269 | }\r |
| 270 | \r |
| 271 | if (code & 0x0800) TileFlip(pd + dx, pack, pal);\r |
| 272 | else TileNorm(pd + dx, pack, pal);\r |
| 273 | }\r |
| 274 | \r |
| 275 | // terminate the cache list\r |
| 276 | *ts->hc = 0;\r |
| 277 | // if oldcode wasn't changed, it means all layer is hi priority\r |
| 278 | if (oldcode == -1) Pico.est.rendstatus |= PDRAW_PLANE_HI_PRIO;\r |
| 279 | }\r |
| 280 | \r |
| 281 | // this is messy\r |
| 282 | static void DrawStripVSRam(struct TileStrip *ts, int plane_sh, int cellskip)\r |
| 283 | {\r |
| 284 | unsigned char *pd = Pico.est.HighCol;\r |
| 285 | int tilex,dx,code=0,addr=0,cell=0;\r |
| 286 | int oldcode=-1,blank=-1; // The tile we know is blank\r |
| 287 | int pal=0,scan=Pico.est.DrawScanline;\r |
| 288 | \r |
| 289 | // Draw tiles across screen:\r |
| 290 | tilex=(-ts->hscroll)>>3;\r |
| 291 | dx=((ts->hscroll-1)&7)+1;\r |
| 292 | if (ts->hscroll & 0x0f) {\r |
| 293 | int adj = ((ts->hscroll ^ dx) >> 3) & 1;\r |
| 294 | cell -= adj + 1;\r |
| 295 | ts->cells -= adj;\r |
| 296 | }\r |
| 297 | cell+=cellskip;\r |
| 298 | tilex+=cellskip;\r |
| 299 | dx+=cellskip<<3;\r |
| 300 | \r |
| 301 | for (; cell < ts->cells; dx+=8,tilex++,cell++)\r |
| 302 | {\r |
| 303 | int nametabadd, ty;\r |
| 304 | unsigned int pack;\r |
| 305 | \r |
| 306 | //if((cell&1)==0)\r |
| 307 | {\r |
| 308 | int line,vscroll;\r |
| 309 | vscroll=PicoMem.vsram[(plane_sh&1)+(cell&~1)];\r |
| 310 | \r |
| 311 | // Find the line in the name table\r |
| 312 | line=(vscroll+scan)&ts->line&0xffff; // ts->line is really ymask ..\r |
| 313 | nametabadd=(line>>3)<<(ts->line>>24); // .. and shift[width]\r |
| 314 | ty=(line&7)<<1; // Y-Offset into tile\r |
| 315 | }\r |
| 316 | \r |
| 317 | code=PicoMem.vram[ts->nametab+nametabadd+(tilex&ts->xmask)];\r |
| 318 | if (code==blank) continue;\r |
| 319 | if (code>>15) { // high priority tile\r |
| 320 | int cval = code | (dx<<16) | (ty<<25);\r |
| 321 | if(code&0x1000) cval^=7<<26;\r |
| 322 | *ts->hc++ = cval; // cache it\r |
| 323 | continue;\r |
| 324 | }\r |
| 325 | \r |
| 326 | if (code!=oldcode) {\r |
| 327 | oldcode = code;\r |
| 328 | // Get tile address/2:\r |
| 329 | addr=(code&0x7ff)<<4;\r |
| 330 | if (code&0x1000) addr+=14-ty; else addr+=ty; // Y-flip\r |
| 331 | \r |
| 332 | pal=((code>>9)&0x30)|((plane_sh<<5)&0x40);\r |
| 333 | }\r |
| 334 | \r |
| 335 | pack = *(unsigned int *)(PicoMem.vram + addr);\r |
| 336 | if (!pack) {\r |
| 337 | blank = code;\r |
| 338 | continue;\r |
| 339 | }\r |
| 340 | \r |
| 341 | if (code & 0x0800) TileFlip(pd + dx, pack, pal);\r |
| 342 | else TileNorm(pd + dx, pack, pal);\r |
| 343 | }\r |
| 344 | \r |
| 345 | // terminate the cache list\r |
| 346 | *ts->hc = 0;\r |
| 347 | if (oldcode == -1) Pico.est.rendstatus |= PDRAW_PLANE_HI_PRIO;\r |
| 348 | }\r |
| 349 | #endif\r |
| 350 | \r |
| 351 | #ifndef _ASM_DRAW_C\r |
| 352 | static\r |
| 353 | #endif\r |
| 354 | void DrawStripInterlace(struct TileStrip *ts)\r |
| 355 | {\r |
| 356 | unsigned char *pd = Pico.est.HighCol;\r |
| 357 | int tilex=0,dx=0,ty=0,code=0,addr=0,cells;\r |
| 358 | int oldcode=-1,blank=-1; // The tile we know is blank\r |
| 359 | int pal=0;\r |
| 360 | \r |
| 361 | // Draw tiles across screen:\r |
| 362 | tilex=(-ts->hscroll)>>3;\r |
| 363 | ty=(ts->line&15)<<1; // Y-Offset into tile\r |
| 364 | dx=((ts->hscroll-1)&7)+1;\r |
| 365 | cells = ts->cells;\r |
| 366 | if(dx != 8) cells++; // have hscroll, need to draw 1 cell more\r |
| 367 | \r |
| 368 | for (; cells; dx+=8,tilex++,cells--)\r |
| 369 | {\r |
| 370 | unsigned int pack;\r |
| 371 | \r |
| 372 | code = PicoMem.vram[ts->nametab + (tilex & ts->xmask)];\r |
| 373 | if (code==blank) continue;\r |
| 374 | if (code>>15) { // high priority tile\r |
| 375 | int cval = (code&0xfc00) | (dx<<16) | (ty<<25);\r |
| 376 | cval|=(code&0x3ff)<<1;\r |
| 377 | if(code&0x1000) cval^=0xf<<26;\r |
| 378 | *ts->hc++ = cval; // cache it\r |
| 379 | continue;\r |
| 380 | }\r |
| 381 | \r |
| 382 | if (code!=oldcode) {\r |
| 383 | oldcode = code;\r |
| 384 | // Get tile address/2:\r |
| 385 | addr=(code&0x7ff)<<5;\r |
| 386 | if (code&0x1000) addr+=30-ty; else addr+=ty; // Y-flip\r |
| 387 | \r |
| 388 | // pal=Pico.cram+((code>>9)&0x30);\r |
| 389 | pal=((code>>9)&0x30);\r |
| 390 | }\r |
| 391 | \r |
| 392 | pack = *(unsigned int *)(PicoMem.vram + addr);\r |
| 393 | if (!pack) {\r |
| 394 | blank = code;\r |
| 395 | continue;\r |
| 396 | }\r |
| 397 | \r |
| 398 | if (code & 0x0800) TileFlip(pd + dx, pack, pal);\r |
| 399 | else TileNorm(pd + dx, pack, pal);\r |
| 400 | }\r |
| 401 | \r |
| 402 | // terminate the cache list\r |
| 403 | *ts->hc = 0;\r |
| 404 | }\r |
| 405 | \r |
| 406 | // --------------------------------------------\r |
| 407 | \r |
| 408 | #ifndef _ASM_DRAW_C\r |
| 409 | static void DrawLayer(int plane_sh, int *hcache, int cellskip, int maxcells,\r |
| 410 | struct PicoEState *est)\r |
| 411 | {\r |
| 412 | struct PicoVideo *pvid=&Pico.video;\r |
| 413 | const char shift[4]={5,6,5,7}; // 32,64 or 128 sized tilemaps (2 is invalid)\r |
| 414 | const unsigned char h_masks[4] = { 0x00, 0x07, 0xf8, 0xff };\r |
| 415 | struct TileStrip ts;\r |
| 416 | int width, height, ymask;\r |
| 417 | int vscroll, htab;\r |
| 418 | \r |
| 419 | ts.hc=hcache;\r |
| 420 | ts.cells=maxcells;\r |
| 421 | \r |
| 422 | // Work out the TileStrip to draw\r |
| 423 | \r |
| 424 | // Work out the name table size: 32 64 or 128 tiles (0-3)\r |
| 425 | width=pvid->reg[16];\r |
| 426 | height=(width>>4)&3; width&=3;\r |
| 427 | \r |
| 428 | ts.xmask=(1<<shift[width])-1; // X Mask in tiles (0x1f-0x7f)\r |
| 429 | ymask=(height<<8)|0xff; // Y Mask in pixels\r |
| 430 | switch (width) {\r |
| 431 | case 1: ymask &= 0x1ff; break;\r |
| 432 | case 2: ymask = 0x007; break;\r |
| 433 | case 3: ymask = 0x0ff; break;\r |
| 434 | }\r |
| 435 | \r |
| 436 | // Find name table:\r |
| 437 | if (plane_sh&1) ts.nametab=(pvid->reg[4]&0x07)<<12; // B\r |
| 438 | else ts.nametab=(pvid->reg[2]&0x38)<< 9; // A\r |
| 439 | \r |
| 440 | htab=pvid->reg[13]<<9; // Horizontal scroll table address\r |
| 441 | htab+=(est->DrawScanline&h_masks[pvid->reg[11]&3])<<1; // Point to line (masked)\r |
| 442 | htab+=plane_sh&1; // A or B\r |
| 443 | \r |
| 444 | // Get horizontal scroll value, will be masked later\r |
| 445 | ts.hscroll = PicoMem.vram[htab & 0x7fff];\r |
| 446 | \r |
| 447 | if((pvid->reg[12]&6) == 6) {\r |
| 448 | // interlace mode 2\r |
| 449 | vscroll = PicoMem.vsram[plane_sh & 1]; // Get vertical scroll value\r |
| 450 | \r |
| 451 | // Find the line in the name table\r |
| 452 | ts.line=(vscroll+(est->DrawScanline<<1))&((ymask<<1)|1);\r |
| 453 | ts.nametab+=(ts.line>>4)<<shift[width];\r |
| 454 | \r |
| 455 | DrawStripInterlace(&ts);\r |
| 456 | } else if( pvid->reg[11]&4) {\r |
| 457 | // shit, we have 2-cell column based vscroll\r |
| 458 | // luckily this doesn't happen too often\r |
| 459 | ts.line=ymask|(shift[width]<<24); // save some stuff instead of line\r |
| 460 | DrawStripVSRam(&ts, plane_sh, cellskip);\r |
| 461 | } else {\r |
| 462 | vscroll = PicoMem.vsram[plane_sh & 1]; // Get vertical scroll value\r |
| 463 | \r |
| 464 | // Find the line in the name table\r |
| 465 | ts.line=(vscroll+est->DrawScanline)&ymask;\r |
| 466 | ts.nametab+=(ts.line>>3)<<shift[width];\r |
| 467 | \r |
| 468 | DrawStrip(&ts, plane_sh, cellskip);\r |
| 469 | }\r |
| 470 | }\r |
| 471 | \r |
| 472 | \r |
| 473 | // --------------------------------------------\r |
| 474 | \r |
| 475 | // tstart & tend are tile pair numbers\r |
| 476 | static void DrawWindow(int tstart, int tend, int prio, int sh,\r |
| 477 | struct PicoEState *est)\r |
| 478 | {\r |
| 479 | unsigned char *pd = Pico.est.HighCol;\r |
| 480 | struct PicoVideo *pvid = &Pico.video;\r |
| 481 | int tilex,ty,nametab,code=0;\r |
| 482 | int blank=-1; // The tile we know is blank\r |
| 483 | \r |
| 484 | // Find name table line:\r |
| 485 | if (pvid->reg[12]&1)\r |
| 486 | {\r |
| 487 | nametab=(pvid->reg[3]&0x3c)<<9; // 40-cell mode\r |
| 488 | nametab+=(est->DrawScanline>>3)<<6;\r |
| 489 | }\r |
| 490 | else\r |
| 491 | {\r |
| 492 | nametab=(pvid->reg[3]&0x3e)<<9; // 32-cell mode\r |
| 493 | nametab+=(est->DrawScanline>>3)<<5;\r |
| 494 | }\r |
| 495 | \r |
| 496 | tilex=tstart<<1;\r |
| 497 | \r |
| 498 | if (!(est->rendstatus & PDRAW_WND_DIFF_PRIO)) {\r |
| 499 | // check the first tile code\r |
| 500 | code = PicoMem.vram[nametab + tilex];\r |
| 501 | // if the whole window uses same priority (what is often the case), we may be able to skip this field\r |
| 502 | if ((code>>15) != prio) return;\r |
| 503 | }\r |
| 504 | \r |
| 505 | tend<<=1;\r |
| 506 | ty=(est->DrawScanline&7)<<1; // Y-Offset into tile\r |
| 507 | \r |
| 508 | // Draw tiles across screen:\r |
| 509 | if (!sh)\r |
| 510 | {\r |
| 511 | for (; tilex < tend; tilex++)\r |
| 512 | {\r |
| 513 | unsigned int pack;\r |
| 514 | int dx, addr;\r |
| 515 | int pal;\r |
| 516 | \r |
| 517 | code = PicoMem.vram[nametab + tilex];\r |
| 518 | if (code==blank) continue;\r |
| 519 | if ((code>>15) != prio) {\r |
| 520 | est->rendstatus |= PDRAW_WND_DIFF_PRIO;\r |
| 521 | continue;\r |
| 522 | }\r |
| 523 | \r |
| 524 | // Get tile address/2:\r |
| 525 | addr=(code&0x7ff)<<4;\r |
| 526 | if (code&0x1000) addr+=14-ty; else addr+=ty; // Y-flip\r |
| 527 | \r |
| 528 | pack = *(unsigned int *)(PicoMem.vram + addr);\r |
| 529 | if (!pack) {\r |
| 530 | blank = code;\r |
| 531 | continue;\r |
| 532 | }\r |
| 533 | \r |
| 534 | pal = ((code >> 9) & 0x30);\r |
| 535 | dx = 8 + (tilex << 3);\r |
| 536 | \r |
| 537 | if (code & 0x0800) TileFlip(pd + dx, pack, pal);\r |
| 538 | else TileNorm(pd + dx, pack, pal);\r |
| 539 | }\r |
| 540 | }\r |
| 541 | else\r |
| 542 | {\r |
| 543 | for (; tilex < tend; tilex++)\r |
| 544 | {\r |
| 545 | unsigned int pack;\r |
| 546 | int dx, addr;\r |
| 547 | int pal;\r |
| 548 | \r |
| 549 | code = PicoMem.vram[nametab + tilex];\r |
| 550 | if(code==blank) continue;\r |
| 551 | if((code>>15) != prio) {\r |
| 552 | est->rendstatus |= PDRAW_WND_DIFF_PRIO;\r |
| 553 | continue;\r |
| 554 | }\r |
| 555 | \r |
| 556 | pal=((code>>9)&0x30);\r |
| 557 | \r |
| 558 | if (prio) {\r |
| 559 | int *zb = (int *)(est->HighCol+8+(tilex<<3));\r |
| 560 | *zb++ &= 0xbfbfbfbf;\r |
| 561 | *zb &= 0xbfbfbfbf;\r |
| 562 | } else {\r |
| 563 | pal |= 0x40;\r |
| 564 | }\r |
| 565 | \r |
| 566 | // Get tile address/2:\r |
| 567 | addr=(code&0x7ff)<<4;\r |
| 568 | if (code&0x1000) addr+=14-ty; else addr+=ty; // Y-flip\r |
| 569 | \r |
| 570 | pack = *(unsigned int *)(PicoMem.vram + addr);\r |
| 571 | if (!pack) {\r |
| 572 | blank = code;\r |
| 573 | continue;\r |
| 574 | }\r |
| 575 | \r |
| 576 | dx = 8 + (tilex << 3);\r |
| 577 | \r |
| 578 | if (code & 0x0800) TileFlip(pd + dx, pack, pal);\r |
| 579 | else TileNorm(pd + dx, pack, pal);\r |
| 580 | }\r |
| 581 | }\r |
| 582 | }\r |
| 583 | \r |
| 584 | // --------------------------------------------\r |
| 585 | \r |
| 586 | static void DrawTilesFromCacheShPrep(void)\r |
| 587 | {\r |
| 588 | // as some layer has covered whole line with hi priority tiles,\r |
| 589 | // we can process whole line and then act as if sh/hi mode was off,\r |
| 590 | // but leave lo pri op sprite markers alone\r |
| 591 | int c = 320/4, *zb = (int *)(Pico.est.HighCol+8);\r |
| 592 | Pico.est.rendstatus |= PDRAW_SHHI_DONE;\r |
| 593 | while (c--)\r |
| 594 | {\r |
| 595 | *zb++ &= 0xbfbfbfbf;\r |
| 596 | }\r |
| 597 | }\r |
| 598 | \r |
| 599 | static void DrawTilesFromCache(int *hc, int sh, int rlim, struct PicoEState *est)\r |
| 600 | {\r |
| 601 | unsigned char *pd = Pico.est.HighCol;\r |
| 602 | int code, addr, dx;\r |
| 603 | unsigned int pack;\r |
| 604 | int pal;\r |
| 605 | \r |
| 606 | // *ts->hc++ = code | (dx<<16) | (ty<<25); // cache it\r |
| 607 | \r |
| 608 | if (sh && (est->rendstatus & (PDRAW_SHHI_DONE|PDRAW_PLANE_HI_PRIO)))\r |
| 609 | {\r |
| 610 | if (!(est->rendstatus & PDRAW_SHHI_DONE))\r |
| 611 | DrawTilesFromCacheShPrep();\r |
| 612 | sh = 0;\r |
| 613 | }\r |
| 614 | \r |
| 615 | if (!sh)\r |
| 616 | {\r |
| 617 | short blank=-1; // The tile we know is blank\r |
| 618 | while ((code=*hc++)) {\r |
| 619 | if (!(code & 0x8000) || (short)code == blank)\r |
| 620 | continue;\r |
| 621 | // Get tile address/2:\r |
| 622 | addr = (code & 0x7ff) << 4;\r |
| 623 | addr += code >> 25; // y offset into tile\r |
| 624 | \r |
| 625 | pack = *(unsigned int *)(PicoMem.vram + addr);\r |
| 626 | if (!pack) {\r |
| 627 | blank = (short)code;\r |
| 628 | continue;\r |
| 629 | }\r |
| 630 | \r |
| 631 | dx = (code >> 16) & 0x1ff;\r |
| 632 | pal = ((code >> 9) & 0x30);\r |
| 633 | if (rlim-dx < 0)\r |
| 634 | goto last_cut_tile;\r |
| 635 | \r |
| 636 | if (code & 0x0800) TileFlip(pd + dx, pack, pal);\r |
| 637 | else TileNorm(pd + dx, pack, pal);\r |
| 638 | }\r |
| 639 | }\r |
| 640 | else\r |
| 641 | {\r |
| 642 | while ((code=*hc++)) {\r |
| 643 | unsigned char *zb;\r |
| 644 | \r |
| 645 | // Get tile address/2:\r |
| 646 | addr=(code&0x7ff)<<4;\r |
| 647 | addr+=(unsigned int)code>>25; // y offset into tile\r |
| 648 | dx=(code>>16)&0x1ff;\r |
| 649 | zb = est->HighCol+dx;\r |
| 650 | *zb++ &= 0xbf; *zb++ &= 0xbf; *zb++ &= 0xbf; *zb++ &= 0xbf;\r |
| 651 | *zb++ &= 0xbf; *zb++ &= 0xbf; *zb++ &= 0xbf; *zb++ &= 0xbf;\r |
| 652 | \r |
| 653 | pack = *(unsigned int *)(PicoMem.vram + addr);\r |
| 654 | if (!pack)\r |
| 655 | continue;\r |
| 656 | \r |
| 657 | pal = ((code >> 9) & 0x30);\r |
| 658 | if (rlim - dx < 0)\r |
| 659 | goto last_cut_tile;\r |
| 660 | \r |
| 661 | if (code & 0x0800) TileFlip(pd + dx, pack, pal);\r |
| 662 | else TileNorm(pd + dx, pack, pal);\r |
| 663 | }\r |
| 664 | }\r |
| 665 | return;\r |
| 666 | \r |
| 667 | last_cut_tile:\r |
| 668 | // for vertical window cutoff\r |
| 669 | {\r |
| 670 | unsigned int t;\r |
| 671 | \r |
| 672 | pd += dx;\r |
| 673 | if (code&0x0800)\r |
| 674 | {\r |
| 675 | switch (rlim-dx+8)\r |
| 676 | {\r |
| 677 | case 7: t=pack&0x00000f00; if (t) pd[6]=(unsigned char)(pal|(t>> 8)); // "break" is left out intentionally\r |
| 678 | case 6: t=pack&0x000000f0; if (t) pd[5]=(unsigned char)(pal|(t>> 4));\r |
| 679 | case 5: t=pack&0x0000000f; if (t) pd[4]=(unsigned char)(pal|(t ));\r |
| 680 | case 4: t=pack&0xf0000000; if (t) pd[3]=(unsigned char)(pal|(t>>28));\r |
| 681 | case 3: t=pack&0x0f000000; if (t) pd[2]=(unsigned char)(pal|(t>>24));\r |
| 682 | case 2: t=pack&0x00f00000; if (t) pd[1]=(unsigned char)(pal|(t>>20));\r |
| 683 | case 1: t=pack&0x000f0000; if (t) pd[0]=(unsigned char)(pal|(t>>16));\r |
| 684 | default: break;\r |
| 685 | }\r |
| 686 | }\r |
| 687 | else\r |
| 688 | {\r |
| 689 | switch (rlim-dx+8)\r |
| 690 | {\r |
| 691 | case 7: t=pack&0x00f00000; if (t) pd[6]=(unsigned char)(pal|(t>>20));\r |
| 692 | case 6: t=pack&0x0f000000; if (t) pd[5]=(unsigned char)(pal|(t>>24));\r |
| 693 | case 5: t=pack&0xf0000000; if (t) pd[4]=(unsigned char)(pal|(t>>28));\r |
| 694 | case 4: t=pack&0x0000000f; if (t) pd[3]=(unsigned char)(pal|(t ));\r |
| 695 | case 3: t=pack&0x000000f0; if (t) pd[2]=(unsigned char)(pal|(t>> 4));\r |
| 696 | case 2: t=pack&0x00000f00; if (t) pd[1]=(unsigned char)(pal|(t>> 8));\r |
| 697 | case 1: t=pack&0x0000f000; if (t) pd[0]=(unsigned char)(pal|(t>>12));\r |
| 698 | default: break;\r |
| 699 | }\r |
| 700 | }\r |
| 701 | }\r |
| 702 | }\r |
| 703 | \r |
| 704 | // --------------------------------------------\r |
| 705 | \r |
| 706 | // Index + 0 : hhhhvvvv ab--hhvv yyyyyyyy yyyyyyyy // a: offscreen h, b: offs. v, h: horiz. size\r |
| 707 | // Index + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8\r |
| 708 | \r |
| 709 | static void DrawSprite(int *sprite, int sh)\r |
| 710 | {\r |
| 711 | void (*fTileFunc)(unsigned char *pd, unsigned int pack, int pal);\r |
| 712 | unsigned char *pd = Pico.est.HighCol;\r |
| 713 | int width=0,height=0;\r |
| 714 | int row=0,code=0;\r |
| 715 | int pal;\r |
| 716 | int tile=0,delta=0;\r |
| 717 | int sx, sy;\r |
| 718 | \r |
| 719 | // parse the sprite data\r |
| 720 | sy=sprite[0];\r |
| 721 | code=sprite[1];\r |
| 722 | sx=code>>16; // X\r |
| 723 | width=sy>>28;\r |
| 724 | height=(sy>>24)&7; // Width and height in tiles\r |
| 725 | sy=(sy<<16)>>16; // Y\r |
| 726 | \r |
| 727 | row=Pico.est.DrawScanline-sy; // Row of the sprite we are on\r |
| 728 | \r |
| 729 | if (code&0x1000) row=(height<<3)-1-row; // Flip Y\r |
| 730 | \r |
| 731 | tile=code + (row>>3); // Tile number increases going down\r |
| 732 | delta=height; // Delta to increase tile by going right\r |
| 733 | if (code&0x0800) { tile+=delta*(width-1); delta=-delta; } // Flip X\r |
| 734 | \r |
| 735 | tile &= 0x7ff; tile<<=4; tile+=(row&7)<<1; // Tile address\r |
| 736 | delta<<=4; // Delta of address\r |
| 737 | \r |
| 738 | pal=(code>>9)&0x30;\r |
| 739 | pal|=sh<<6;\r |
| 740 | \r |
| 741 | if (sh && (code&0x6000) == 0x6000) {\r |
| 742 | if(code&0x0800) fTileFunc=TileFlipSH_markop;\r |
| 743 | else fTileFunc=TileNormSH_markop;\r |
| 744 | } else {\r |
| 745 | if(code&0x0800) fTileFunc=TileFlip;\r |
| 746 | else fTileFunc=TileNorm;\r |
| 747 | }\r |
| 748 | \r |
| 749 | for (; width; width--,sx+=8,tile+=delta)\r |
| 750 | {\r |
| 751 | unsigned int pack;\r |
| 752 | \r |
| 753 | if(sx<=0) continue;\r |
| 754 | if(sx>=328) break; // Offscreen\r |
| 755 | \r |
| 756 | pack = *(unsigned int *)(PicoMem.vram + (tile & 0x7fff));\r |
| 757 | fTileFunc(pd + sx, pack, pal);\r |
| 758 | }\r |
| 759 | }\r |
| 760 | #endif\r |
| 761 | \r |
| 762 | static NOINLINE void DrawTilesFromCacheForced(const int *hc)\r |
| 763 | {\r |
| 764 | unsigned char *pd = Pico.est.HighCol;\r |
| 765 | int code, addr, dx;\r |
| 766 | unsigned int pack;\r |
| 767 | int pal;\r |
| 768 | \r |
| 769 | // *ts->hc++ = code | (dx<<16) | (ty<<25);\r |
| 770 | while ((code = *hc++)) {\r |
| 771 | // Get tile address/2:\r |
| 772 | addr = (code & 0x7ff) << 4;\r |
| 773 | addr += (code >> 25) & 0x0e; // y offset into tile\r |
| 774 | \r |
| 775 | dx = (code >> 16) & 0x1ff;\r |
| 776 | pal = ((code >> 9) & 0x30);\r |
| 777 | pack = *(unsigned int *)(PicoMem.vram + addr);\r |
| 778 | \r |
| 779 | if (code & 0x0800) TileFlip_and(pd + dx, pack, pal);\r |
| 780 | else TileNorm_and(pd + dx, pack, pal);\r |
| 781 | }\r |
| 782 | }\r |
| 783 | \r |
| 784 | static void DrawSpriteInterlace(unsigned int *sprite)\r |
| 785 | {\r |
| 786 | unsigned char *pd = Pico.est.HighCol;\r |
| 787 | int width=0,height=0;\r |
| 788 | int row=0,code=0;\r |
| 789 | int pal;\r |
| 790 | int tile=0,delta=0;\r |
| 791 | int sx, sy;\r |
| 792 | \r |
| 793 | // parse the sprite data\r |
| 794 | sy=sprite[0];\r |
| 795 | height=sy>>24;\r |
| 796 | sy=(sy&0x3ff)-0x100; // Y\r |
| 797 | width=(height>>2)&3; height&=3;\r |
| 798 | width++; height++; // Width and height in tiles\r |
| 799 | \r |
| 800 | row=(Pico.est.DrawScanline<<1)-sy; // Row of the sprite we are on\r |
| 801 | \r |
| 802 | code=sprite[1];\r |
| 803 | sx=((code>>16)&0x1ff)-0x78; // X\r |
| 804 | \r |
| 805 | if (code&0x1000) row^=(16<<height)-1; // Flip Y\r |
| 806 | \r |
| 807 | tile=code&0x3ff; // Tile number\r |
| 808 | tile+=row>>4; // Tile number increases going down\r |
| 809 | delta=height; // Delta to increase tile by going right\r |
| 810 | if (code&0x0800) { tile+=delta*(width-1); delta=-delta; } // Flip X\r |
| 811 | \r |
| 812 | tile<<=5; tile+=(row&15)<<1; // Tile address\r |
| 813 | \r |
| 814 | delta<<=5; // Delta of address\r |
| 815 | pal=((code>>9)&0x30); // Get palette pointer\r |
| 816 | \r |
| 817 | for (; width; width--,sx+=8,tile+=delta)\r |
| 818 | {\r |
| 819 | unsigned int pack;\r |
| 820 | \r |
| 821 | if(sx<=0) continue;\r |
| 822 | if(sx>=328) break; // Offscreen\r |
| 823 | \r |
| 824 | pack = *(unsigned int *)(PicoMem.vram + (tile & 0x7fff));\r |
| 825 | if (code & 0x0800) TileFlip(pd + sx, pack, pal);\r |
| 826 | else TileNorm(pd + sx, pack, pal);\r |
| 827 | }\r |
| 828 | }\r |
| 829 | \r |
| 830 | \r |
| 831 | static NOINLINE void DrawAllSpritesInterlace(int pri, int sh)\r |
| 832 | {\r |
| 833 | struct PicoVideo *pvid=&Pico.video;\r |
| 834 | int i,u,table,link=0,sline=Pico.est.DrawScanline<<1;\r |
| 835 | unsigned int *sprites[80]; // Sprite index\r |
| 836 | \r |
| 837 | table=pvid->reg[5]&0x7f;\r |
| 838 | if (pvid->reg[12]&1) table&=0x7e; // Lowest bit 0 in 40-cell mode\r |
| 839 | table<<=8; // Get sprite table address/2\r |
| 840 | \r |
| 841 | for (i=u=0; u < 80 && i < 21; u++)\r |
| 842 | {\r |
| 843 | unsigned int *sprite;\r |
| 844 | int code, sx, sy, height;\r |
| 845 | \r |
| 846 | sprite=(unsigned int *)(PicoMem.vram+((table+(link<<2))&0x7ffc)); // Find sprite\r |
| 847 | \r |
| 848 | // get sprite info\r |
| 849 | code = sprite[0];\r |
| 850 | sx = sprite[1];\r |
| 851 | if(((sx>>15)&1) != pri) goto nextsprite; // wrong priority sprite\r |
| 852 | \r |
| 853 | // check if it is on this line\r |
| 854 | sy = (code&0x3ff)-0x100;\r |
| 855 | height = (((code>>24)&3)+1)<<4;\r |
| 856 | if(sline < sy || sline >= sy+height) goto nextsprite; // no\r |
| 857 | \r |
| 858 | // check if sprite is not hidden offscreen\r |
| 859 | sx = (sx>>16)&0x1ff;\r |
| 860 | sx -= 0x78; // Get X coordinate + 8\r |
| 861 | if(sx <= -8*3 || sx >= 328) goto nextsprite;\r |
| 862 | \r |
| 863 | // sprite is good, save it's pointer\r |
| 864 | sprites[i++]=sprite;\r |
| 865 | \r |
| 866 | nextsprite:\r |
| 867 | // Find next sprite\r |
| 868 | link=(code>>16)&0x7f;\r |
| 869 | if(!link) break; // End of sprites\r |
| 870 | }\r |
| 871 | \r |
| 872 | // Go through sprites backwards:\r |
| 873 | for (i-- ;i>=0; i--)\r |
| 874 | DrawSpriteInterlace(sprites[i]);\r |
| 875 | }\r |
| 876 | \r |
| 877 | \r |
| 878 | #ifndef _ASM_DRAW_C\r |
| 879 | /*\r |
| 880 | * s/h drawing: lo_layers|40, lo_sprites|40 && mark_op,\r |
| 881 | * hi_layers&=~40, hi_sprites\r |
| 882 | *\r |
| 883 | * Index + 0 : hhhhvvvv ----hhvv yyyyyyyy yyyyyyyy // v, h: vert./horiz. size\r |
| 884 | * Index + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8\r |
| 885 | */\r |
| 886 | static void DrawSpritesSHi(unsigned char *sprited, const struct PicoEState *est)\r |
| 887 | {\r |
| 888 | void (*fTileFunc)(unsigned char *pd, unsigned int pack, int pal);\r |
| 889 | unsigned char *pd = Pico.est.HighCol;\r |
| 890 | unsigned char *p;\r |
| 891 | int cnt;\r |
| 892 | \r |
| 893 | cnt = sprited[0] & 0x7f;\r |
| 894 | if (cnt == 0) return;\r |
| 895 | \r |
| 896 | p = &sprited[3];\r |
| 897 | \r |
| 898 | // Go through sprites backwards:\r |
| 899 | for (cnt--; cnt >= 0; cnt--)\r |
| 900 | {\r |
| 901 | int *sprite, code, pal, tile, sx, sy;\r |
| 902 | int offs, delta, width, height, row;\r |
| 903 | \r |
| 904 | offs = (p[cnt] & 0x7f) * 2;\r |
| 905 | sprite = est->HighPreSpr + offs;\r |
| 906 | code = sprite[1];\r |
| 907 | pal = (code>>9)&0x30;\r |
| 908 | \r |
| 909 | if (pal == 0x30)\r |
| 910 | {\r |
| 911 | if (code & 0x8000) // hi priority\r |
| 912 | {\r |
| 913 | if (code&0x800) fTileFunc=TileFlipSH;\r |
| 914 | else fTileFunc=TileNormSH;\r |
| 915 | } else {\r |
| 916 | if (code&0x800) fTileFunc=TileFlipSH_onlyop_lp;\r |
| 917 | else fTileFunc=TileNormSH_onlyop_lp;\r |
| 918 | }\r |
| 919 | } else {\r |
| 920 | if (!(code & 0x8000)) continue; // non-operator low sprite, already drawn\r |
| 921 | if (code&0x800) fTileFunc=TileFlip;\r |
| 922 | else fTileFunc=TileNorm;\r |
| 923 | }\r |
| 924 | \r |
| 925 | // parse remaining sprite data\r |
| 926 | sy=sprite[0];\r |
| 927 | sx=code>>16; // X\r |
| 928 | width=sy>>28;\r |
| 929 | height=(sy>>24)&7; // Width and height in tiles\r |
| 930 | sy=(sy<<16)>>16; // Y\r |
| 931 | \r |
| 932 | row=est->DrawScanline-sy; // Row of the sprite we are on\r |
| 933 | \r |
| 934 | if (code&0x1000) row=(height<<3)-1-row; // Flip Y\r |
| 935 | \r |
| 936 | tile=code + (row>>3); // Tile number increases going down\r |
| 937 | delta=height; // Delta to increase tile by going right\r |
| 938 | if (code&0x0800) { tile+=delta*(width-1); delta=-delta; } // Flip X\r |
| 939 | \r |
| 940 | tile &= 0x7ff; tile<<=4; tile+=(row&7)<<1; // Tile address\r |
| 941 | delta<<=4; // Delta of address\r |
| 942 | \r |
| 943 | for (; width; width--,sx+=8,tile+=delta)\r |
| 944 | {\r |
| 945 | unsigned int pack;\r |
| 946 | \r |
| 947 | if(sx<=0) continue;\r |
| 948 | if(sx>=328) break; // Offscreen\r |
| 949 | \r |
| 950 | pack = *(unsigned int *)(PicoMem.vram + (tile & 0x7fff));\r |
| 951 | fTileFunc(pd + sx, pack, pal);\r |
| 952 | }\r |
| 953 | }\r |
| 954 | }\r |
| 955 | #endif // !_ASM_DRAW_C\r |
| 956 | \r |
| 957 | static void DrawSpritesHiAS(unsigned char *sprited, int sh)\r |
| 958 | {\r |
| 959 | void (*fTileFunc)(unsigned char *pd, unsigned char *mb,\r |
| 960 | unsigned int pack, int pal);\r |
| 961 | unsigned char *pd = Pico.est.HighCol;\r |
| 962 | unsigned char mb[8+320+8];\r |
| 963 | unsigned char *p;\r |
| 964 | int entry, cnt;\r |
| 965 | \r |
| 966 | cnt = sprited[0] & 0x7f;\r |
| 967 | if (cnt == 0) return;\r |
| 968 | \r |
| 969 | memset(mb, 0xff, sizeof(mb));\r |
| 970 | p = &sprited[3];\r |
| 971 | \r |
| 972 | // Go through sprites:\r |
| 973 | for (entry = 0; entry < cnt; entry++)\r |
| 974 | {\r |
| 975 | int *sprite, code, pal, tile, sx, sy;\r |
| 976 | int offs, delta, width, height, row;\r |
| 977 | \r |
| 978 | offs = (p[entry] & 0x7f) * 2;\r |
| 979 | sprite = HighPreSpr + offs;\r |
| 980 | code = sprite[1];\r |
| 981 | pal = (code>>9)&0x30;\r |
| 982 | \r |
| 983 | if (sh && pal == 0x30)\r |
| 984 | {\r |
| 985 | if (code & 0x8000) // hi priority\r |
| 986 | {\r |
| 987 | if (code&0x800) fTileFunc = TileFlipSH_AS;\r |
| 988 | else fTileFunc = TileNormSH_AS;\r |
| 989 | } else {\r |
| 990 | if (code&0x800) fTileFunc = TileFlipSH_AS_onlyop_lp;\r |
| 991 | else fTileFunc = TileNormSH_AS_onlyop_lp;\r |
| 992 | }\r |
| 993 | } else {\r |
| 994 | if (code & 0x8000) // hi priority\r |
| 995 | {\r |
| 996 | if (code&0x800) fTileFunc = TileFlipAS;\r |
| 997 | else fTileFunc = TileNormAS;\r |
| 998 | } else {\r |
| 999 | if (code&0x800) fTileFunc = TileFlipAS_onlymark;\r |
| 1000 | else fTileFunc = TileNormAS_onlymark;\r |
| 1001 | }\r |
| 1002 | }\r |
| 1003 | \r |
| 1004 | // parse remaining sprite data\r |
| 1005 | sy=sprite[0];\r |
| 1006 | sx=code>>16; // X\r |
| 1007 | width=sy>>28;\r |
| 1008 | height=(sy>>24)&7; // Width and height in tiles\r |
| 1009 | sy=(sy<<16)>>16; // Y\r |
| 1010 | \r |
| 1011 | row=Pico.est.DrawScanline-sy; // Row of the sprite we are on\r |
| 1012 | \r |
| 1013 | if (code&0x1000) row=(height<<3)-1-row; // Flip Y\r |
| 1014 | \r |
| 1015 | tile=code + (row>>3); // Tile number increases going down\r |
| 1016 | delta=height; // Delta to increase tile by going right\r |
| 1017 | if (code&0x0800) { tile+=delta*(width-1); delta=-delta; } // Flip X\r |
| 1018 | \r |
| 1019 | tile &= 0x7ff; tile<<=4; tile+=(row&7)<<1; // Tile address\r |
| 1020 | delta<<=4; // Delta of address\r |
| 1021 | \r |
| 1022 | for (; width; width--,sx+=8,tile+=delta)\r |
| 1023 | {\r |
| 1024 | unsigned int pack;\r |
| 1025 | \r |
| 1026 | if(sx<=0) continue;\r |
| 1027 | if(sx>=328) break; // Offscreen\r |
| 1028 | \r |
| 1029 | pack = *(unsigned int *)(PicoMem.vram + (tile & 0x7fff));\r |
| 1030 | fTileFunc(pd + sx, mb + sx, pack, pal);\r |
| 1031 | }\r |
| 1032 | }\r |
| 1033 | }\r |
| 1034 | \r |
| 1035 | \r |
| 1036 | // Index + 0 : ----hhvv -lllllll -------y yyyyyyyy\r |
| 1037 | // Index + 4 : -------x xxxxxxxx pccvhnnn nnnnnnnn\r |
| 1038 | // v\r |
| 1039 | // Index + 0 : hhhhvvvv ----hhvv yyyyyyyy yyyyyyyy // v, h: vert./horiz. size\r |
| 1040 | // Index + 4 : xxxxxxxx xxxxxxxx pccvhnnn nnnnnnnn // x: x coord + 8\r |
| 1041 | \r |
| 1042 | static NOINLINE void PrepareSprites(int full)\r |
| 1043 | {\r |
| 1044 | const struct PicoVideo *pvid=&Pico.video;\r |
| 1045 | const struct PicoEState *est=&Pico.est;\r |
| 1046 | int u,link=0,sh;\r |
| 1047 | int table=0;\r |
| 1048 | int *pd = HighPreSpr;\r |
| 1049 | int max_lines = 224, max_sprites = 80, max_width = 328;\r |
| 1050 | int max_line_sprites = 20; // 20 sprites, 40 tiles\r |
| 1051 | \r |
| 1052 | if (!(Pico.video.reg[12]&1))\r |
| 1053 | max_sprites = 64, max_line_sprites = 16, max_width = 264;\r |
| 1054 | if (PicoIn.opt & POPT_DIS_SPRITE_LIM)\r |
| 1055 | max_line_sprites = MAX_LINE_SPRITES;\r |
| 1056 | \r |
| 1057 | if (pvid->reg[1]&8) max_lines = 240;\r |
| 1058 | sh = Pico.video.reg[0xC]&8; // shadow/hilight?\r |
| 1059 | \r |
| 1060 | table=pvid->reg[5]&0x7f;\r |
| 1061 | if (pvid->reg[12]&1) table&=0x7e; // Lowest bit 0 in 40-cell mode\r |
| 1062 | table<<=8; // Get sprite table address/2\r |
| 1063 | \r |
| 1064 | if (!full)\r |
| 1065 | {\r |
| 1066 | int pack;\r |
| 1067 | // updates: tilecode, sx\r |
| 1068 | for (u=0; u < max_sprites && (pack = *pd); u++, pd+=2)\r |
| 1069 | {\r |
| 1070 | unsigned int *sprite;\r |
| 1071 | int code2, sx, sy, height;\r |
| 1072 | \r |
| 1073 | sprite=(unsigned int *)(PicoMem.vram+((table+(link<<2))&0x7ffc)); // Find sprite\r |
| 1074 | \r |
| 1075 | // parse sprite info\r |
| 1076 | code2 = sprite[1];\r |
| 1077 | sx = (code2>>16)&0x1ff;\r |
| 1078 | sx -= 0x78; // Get X coordinate + 8\r |
| 1079 | sy = (pack << 16) >> 16;\r |
| 1080 | height = (pack >> 24) & 0xf;\r |
| 1081 | \r |
| 1082 | if (sy < max_lines &&\r |
| 1083 | sy + (height<<3) > est->DrawScanline && // sprite onscreen (y)?\r |
| 1084 | (sx > -24 || sx < max_width)) // onscreen x\r |
| 1085 | {\r |
| 1086 | int y = (sy >= est->DrawScanline) ? sy : est->DrawScanline;\r |
| 1087 | int entry = ((pd - HighPreSpr) / 2) | ((code2>>8)&0x80);\r |
| 1088 | for (; y < sy + (height<<3) && y < max_lines; y++)\r |
| 1089 | {\r |
| 1090 | int i, cnt;\r |
| 1091 | cnt = HighLnSpr[y][0] & 0x7f;\r |
| 1092 | if (cnt >= max_line_sprites) continue; // sprite limit?\r |
| 1093 | \r |
| 1094 | for (i = 0; i < cnt; i++)\r |
| 1095 | if (((HighLnSpr[y][3+i] ^ entry) & 0x7f) == 0) goto found;\r |
| 1096 | \r |
| 1097 | // this sprite was previously missing\r |
| 1098 | HighLnSpr[y][3+cnt] = entry;\r |
| 1099 | HighLnSpr[y][0] = cnt + 1;\r |
| 1100 | found:;\r |
| 1101 | if (entry & 0x80)\r |
| 1102 | HighLnSpr[y][1] |= SPRL_HAVE_HI;\r |
| 1103 | else HighLnSpr[y][1] |= SPRL_HAVE_LO;\r |
| 1104 | }\r |
| 1105 | }\r |
| 1106 | \r |
| 1107 | code2 &= ~0xfe000000;\r |
| 1108 | code2 -= 0x00780000; // Get X coordinate + 8 in upper 16 bits\r |
| 1109 | pd[1] = code2;\r |
| 1110 | \r |
| 1111 | // Find next sprite\r |
| 1112 | link=(sprite[0]>>16)&0x7f;\r |
| 1113 | if (!link) break; // End of sprites\r |
| 1114 | }\r |
| 1115 | }\r |
| 1116 | else\r |
| 1117 | {\r |
| 1118 | for (u = 0; u < max_lines; u++)\r |
| 1119 | *((int *)&HighLnSpr[u][0]) = 0;\r |
| 1120 | \r |
| 1121 | for (u = 0; u < max_sprites; u++)\r |
| 1122 | {\r |
| 1123 | unsigned int *sprite;\r |
| 1124 | int code, code2, sx, sy, hv, height, width;\r |
| 1125 | \r |
| 1126 | sprite=(unsigned int *)(PicoMem.vram+((table+(link<<2))&0x7ffc)); // Find sprite\r |
| 1127 | \r |
| 1128 | // parse sprite info\r |
| 1129 | code = sprite[0];\r |
| 1130 | sy = (code&0x1ff)-0x80;\r |
| 1131 | hv = (code>>24)&0xf;\r |
| 1132 | height = (hv&3)+1;\r |
| 1133 | \r |
| 1134 | width = (hv>>2)+1;\r |
| 1135 | code2 = sprite[1];\r |
| 1136 | sx = (code2>>16)&0x1ff;\r |
| 1137 | sx -= 0x78; // Get X coordinate + 8\r |
| 1138 | \r |
| 1139 | if (sy < max_lines && sy + (height<<3) > est->DrawScanline) // sprite onscreen (y)?\r |
| 1140 | {\r |
| 1141 | int entry, y, sx_min, onscr_x, maybe_op = 0;\r |
| 1142 | \r |
| 1143 | sx_min = 8-(width<<3);\r |
| 1144 | onscr_x = sx_min < sx && sx < max_width;\r |
| 1145 | if (sh && (code2 & 0x6000) == 0x6000)\r |
| 1146 | maybe_op = SPRL_MAY_HAVE_OP;\r |
| 1147 | \r |
| 1148 | entry = ((pd - HighPreSpr) / 2) | ((code2>>8)&0x80);\r |
| 1149 | y = (sy >= est->DrawScanline) ? sy : est->DrawScanline;\r |
| 1150 | for (; y < sy + (height<<3) && y < max_lines; y++)\r |
| 1151 | {\r |
| 1152 | unsigned char *p = &HighLnSpr[y][0];\r |
| 1153 | int cnt = p[0];\r |
| 1154 | if (cnt >= max_line_sprites) continue; // sprite limit?\r |
| 1155 | \r |
| 1156 | if (p[2] >= max_line_sprites*2) { // tile limit?\r |
| 1157 | p[0] |= 0x80;\r |
| 1158 | continue;\r |
| 1159 | }\r |
| 1160 | p[2] += width;\r |
| 1161 | \r |
| 1162 | if (sx == -0x78) {\r |
| 1163 | if (cnt > 0)\r |
| 1164 | p[0] |= 0x80; // masked, no more sprites for this line\r |
| 1165 | continue;\r |
| 1166 | }\r |
| 1167 | // must keep the first sprite even if it's offscreen, for masking\r |
| 1168 | if (cnt > 0 && !onscr_x) continue; // offscreen x\r |
| 1169 | \r |
| 1170 | p[3+cnt] = entry;\r |
| 1171 | p[0] = cnt + 1;\r |
| 1172 | p[1] |= (entry & 0x80) ? SPRL_HAVE_HI : SPRL_HAVE_LO;\r |
| 1173 | p[1] |= maybe_op; // there might be op sprites on this line\r |
| 1174 | if (cnt > 0 && (code2 & 0x8000) && !(p[3+cnt-1]&0x80))\r |
| 1175 | p[1] |= SPRL_LO_ABOVE_HI;\r |
| 1176 | }\r |
| 1177 | }\r |
| 1178 | \r |
| 1179 | *pd++ = (width<<28)|(height<<24)|(hv<<16)|((unsigned short)sy);\r |
| 1180 | *pd++ = (sx<<16)|((unsigned short)code2);\r |
| 1181 | \r |
| 1182 | // Find next sprite\r |
| 1183 | link=(code>>16)&0x7f;\r |
| 1184 | if (!link) break; // End of sprites\r |
| 1185 | }\r |
| 1186 | *pd = 0;\r |
| 1187 | \r |
| 1188 | #if 0\r |
| 1189 | for (u = 0; u < max_lines; u++)\r |
| 1190 | {\r |
| 1191 | int y;\r |
| 1192 | printf("c%03i: %2i, %2i: ", u, HighLnSpr[u][0] & 0x7f, HighLnSpr[u][2]);\r |
| 1193 | for (y = 0; y < HighLnSpr[u][0] & 0x7f; y++)\r |
| 1194 | printf(" %i", HighLnSpr[u][y+3]);\r |
| 1195 | printf("\n");\r |
| 1196 | }\r |
| 1197 | #endif\r |
| 1198 | }\r |
| 1199 | }\r |
| 1200 | \r |
| 1201 | #ifndef _ASM_DRAW_C\r |
| 1202 | static void DrawAllSprites(unsigned char *sprited, int prio, int sh,\r |
| 1203 | struct PicoEState *est)\r |
| 1204 | {\r |
| 1205 | unsigned char *p;\r |
| 1206 | int cnt;\r |
| 1207 | \r |
| 1208 | cnt = sprited[0] & 0x7f;\r |
| 1209 | if (cnt == 0) return;\r |
| 1210 | \r |
| 1211 | p = &sprited[3];\r |
| 1212 | \r |
| 1213 | // Go through sprites backwards:\r |
| 1214 | for (cnt--; cnt >= 0; cnt--)\r |
| 1215 | {\r |
| 1216 | int offs;\r |
| 1217 | if ((p[cnt] >> 7) != prio) continue;\r |
| 1218 | offs = (p[cnt]&0x7f) * 2;\r |
| 1219 | DrawSprite(HighPreSpr + offs, sh);\r |
| 1220 | }\r |
| 1221 | }\r |
| 1222 | \r |
| 1223 | \r |
| 1224 | // --------------------------------------------\r |
| 1225 | \r |
| 1226 | void BackFill(int reg7, int sh, struct PicoEState *est)\r |
| 1227 | {\r |
| 1228 | unsigned int back;\r |
| 1229 | \r |
| 1230 | // Start with a blank scanline (background colour):\r |
| 1231 | back=reg7&0x3f;\r |
| 1232 | back|=sh<<6;\r |
| 1233 | back|=back<<8;\r |
| 1234 | back|=back<<16;\r |
| 1235 | \r |
| 1236 | memset32((int *)(est->HighCol+8), back, 320/4);\r |
| 1237 | }\r |
| 1238 | #endif\r |
| 1239 | \r |
| 1240 | // --------------------------------------------\r |
| 1241 | \r |
| 1242 | #ifndef _ASM_DRAW_C\r |
| 1243 | void PicoDoHighPal555(int sh, int line, struct PicoEState *est)\r |
| 1244 | {\r |
| 1245 | unsigned int *spal, *dpal;\r |
| 1246 | unsigned int t, i;\r |
| 1247 | \r |
| 1248 | Pico.m.dirtyPal = 0;\r |
| 1249 | \r |
| 1250 | spal = (void *)PicoMem.cram;\r |
| 1251 | dpal = (void *)est->HighPal;\r |
| 1252 | \r |
| 1253 | for (i = 0; i < 0x40 / 2; i++) {\r |
| 1254 | t = spal[i];\r |
| 1255 | #ifdef USE_BGR555\r |
| 1256 | t = ((t & 0x000e000e)<< 1) | ((t & 0x00e000e0)<<3) | ((t & 0x0e000e00)<<4);\r |
| 1257 | #else\r |
| 1258 | t = ((t & 0x000e000e)<<12) | ((t & 0x00e000e0)<<3) | ((t & 0x0e000e00)>>7);\r |
| 1259 | #endif\r |
| 1260 | // treat it like it was 4-bit per channel, since in s/h mode it somewhat is that.\r |
| 1261 | // otherwise intensity difference between this and s/h will be wrong\r |
| 1262 | t |= (t >> 4) & 0x08610861; // 0x18e318e3\r |
| 1263 | dpal[i] = t;\r |
| 1264 | }\r |
| 1265 | \r |
| 1266 | // norm: xxx0, sh: 0xxx, hi: 0xxx + 7\r |
| 1267 | if (sh)\r |
| 1268 | {\r |
| 1269 | // shadowed pixels\r |
| 1270 | for (i = 0; i < 0x40 / 2; i++)\r |
| 1271 | dpal[0x40/2 | i] = dpal[0xc0/2 | i] = (dpal[i] >> 1) & 0x738e738e;\r |
| 1272 | // hilighted pixels\r |
| 1273 | for (i = 0; i < 0x40 / 2; i++) {\r |
| 1274 | t = ((dpal[i] >> 1) & 0x738e738e) + 0x738e738e; // 0x7bef7bef;\r |
| 1275 | t |= (t >> 4) & 0x08610861;\r |
| 1276 | dpal[0x80/2 | i] = t;\r |
| 1277 | }\r |
| 1278 | }\r |
| 1279 | }\r |
| 1280 | \r |
| 1281 | void FinalizeLine555(int sh, int line, struct PicoEState *est)\r |
| 1282 | {\r |
| 1283 | unsigned short *pd=est->DrawLineDest;\r |
| 1284 | unsigned char *ps=est->HighCol+8;\r |
| 1285 | unsigned short *pal=est->HighPal;\r |
| 1286 | int len;\r |
| 1287 | \r |
| 1288 | if (Pico.m.dirtyPal)\r |
| 1289 | PicoDoHighPal555(sh, line, est);\r |
| 1290 | \r |
| 1291 | if (Pico.video.reg[12]&1) {\r |
| 1292 | len = 320;\r |
| 1293 | } else {\r |
| 1294 | if (!(PicoIn.opt&POPT_DIS_32C_BORDER)) pd+=32;\r |
| 1295 | len = 256;\r |
| 1296 | }\r |
| 1297 | \r |
| 1298 | {\r |
| 1299 | #if 1\r |
| 1300 | int i;\r |
| 1301 | \r |
| 1302 | for (i = 0; i < len; i++)\r |
| 1303 | pd[i] = pal[ps[i]];\r |
| 1304 | #else\r |
| 1305 | extern void amips_clut(unsigned short *dst, unsigned char *src, unsigned short *pal, int count);\r |
| 1306 | extern void amips_clut_6bit(unsigned short *dst, unsigned char *src, unsigned short *pal, int count);\r |
| 1307 | if (!sh)\r |
| 1308 | amips_clut_6bit(pd, ps, pal, len);\r |
| 1309 | else amips_clut(pd, ps, pal, len);\r |
| 1310 | #endif\r |
| 1311 | }\r |
| 1312 | }\r |
| 1313 | #endif\r |
| 1314 | \r |
| 1315 | static void FinalizeLine8bit(int sh, int line, struct PicoEState *est)\r |
| 1316 | {\r |
| 1317 | unsigned char *pd = est->DrawLineDest;\r |
| 1318 | int len, rs = est->rendstatus;\r |
| 1319 | static int dirty_count;\r |
| 1320 | \r |
| 1321 | if (!sh && Pico.m.dirtyPal == 1)\r |
| 1322 | {\r |
| 1323 | // a hack for mid-frame palette changes\r |
| 1324 | if (!(rs & PDRAW_SONIC_MODE))\r |
| 1325 | dirty_count = 1;\r |
| 1326 | else dirty_count++;\r |
| 1327 | rs |= PDRAW_SONIC_MODE;\r |
| 1328 | est->rendstatus = rs;\r |
| 1329 | if (dirty_count == 3) {\r |
| 1330 | blockcpy(est->HighPal, PicoMem.cram, 0x40*2);\r |
| 1331 | } else if (dirty_count == 11) {\r |
| 1332 | blockcpy(est->HighPal+0x40, PicoMem.cram, 0x40*2);\r |
| 1333 | }\r |
| 1334 | }\r |
| 1335 | \r |
| 1336 | if (Pico.video.reg[12]&1) {\r |
| 1337 | len = 320;\r |
| 1338 | } else {\r |
| 1339 | if (!(PicoIn.opt & POPT_DIS_32C_BORDER))\r |
| 1340 | pd += 32;\r |
| 1341 | len = 256;\r |
| 1342 | }\r |
| 1343 | \r |
| 1344 | if (!sh && (rs & PDRAW_SONIC_MODE)) {\r |
| 1345 | if (dirty_count >= 11) {\r |
| 1346 | blockcpy_or(pd, est->HighCol+8, len, 0x80);\r |
| 1347 | } else {\r |
| 1348 | blockcpy_or(pd, est->HighCol+8, len, 0x40);\r |
| 1349 | }\r |
| 1350 | } else {\r |
| 1351 | blockcpy(pd, est->HighCol+8, len);\r |
| 1352 | }\r |
| 1353 | }\r |
| 1354 | \r |
| 1355 | static void (*FinalizeLine)(int sh, int line, struct PicoEState *est);\r |
| 1356 | \r |
| 1357 | // --------------------------------------------\r |
| 1358 | \r |
| 1359 | static int DrawDisplay(int sh)\r |
| 1360 | {\r |
| 1361 | struct PicoEState *est=&Pico.est;\r |
| 1362 | unsigned char *sprited = &HighLnSpr[est->DrawScanline][0];\r |
| 1363 | struct PicoVideo *pvid=&Pico.video;\r |
| 1364 | int win=0, edge=0, hvwind=0, lflags;\r |
| 1365 | int maxw, maxcells;\r |
| 1366 | \r |
| 1367 | if (est->rendstatus & (PDRAW_SPRITES_MOVED|PDRAW_DIRTY_SPRITES)) {\r |
| 1368 | // elprintf(EL_STATUS, "PrepareSprites(%i)", (est->rendstatus>>4)&1);\r |
| 1369 | PrepareSprites(est->rendstatus & PDRAW_DIRTY_SPRITES);\r |
| 1370 | est->rendstatus &= ~(PDRAW_SPRITES_MOVED|PDRAW_DIRTY_SPRITES);\r |
| 1371 | }\r |
| 1372 | \r |
| 1373 | est->rendstatus &= ~(PDRAW_SHHI_DONE|PDRAW_PLANE_HI_PRIO);\r |
| 1374 | \r |
| 1375 | if (pvid->reg[12]&1) {\r |
| 1376 | maxw = 328; maxcells = 40;\r |
| 1377 | } else {\r |
| 1378 | maxw = 264; maxcells = 32;\r |
| 1379 | }\r |
| 1380 | \r |
| 1381 | // Find out if the window is on this line:\r |
| 1382 | win=pvid->reg[0x12];\r |
| 1383 | edge=(win&0x1f)<<3;\r |
| 1384 | \r |
| 1385 | if (win&0x80) { if (est->DrawScanline>=edge) hvwind=1; }\r |
| 1386 | else { if (est->DrawScanline< edge) hvwind=1; }\r |
| 1387 | \r |
| 1388 | if (!hvwind) // we might have a vertical window here\r |
| 1389 | {\r |
| 1390 | win=pvid->reg[0x11];\r |
| 1391 | edge=win&0x1f;\r |
| 1392 | if (win&0x80) {\r |
| 1393 | if (!edge) hvwind=1;\r |
| 1394 | else if(edge < (maxcells>>1)) hvwind=2;\r |
| 1395 | } else {\r |
| 1396 | if (!edge);\r |
| 1397 | else if(edge < (maxcells>>1)) hvwind=2;\r |
| 1398 | else hvwind=1;\r |
| 1399 | }\r |
| 1400 | }\r |
| 1401 | \r |
| 1402 | /* - layer B low - */\r |
| 1403 | if (!(pvid->debug_p & PVD_KILL_B)) {\r |
| 1404 | lflags = LF_PLANE_1 | (sh << 1);\r |
| 1405 | if (pvid->debug_p & PVD_FORCE_B)\r |
| 1406 | lflags |= LF_FORCE;\r |
| 1407 | DrawLayer(lflags, HighCacheB, 0, maxcells, est);\r |
| 1408 | }\r |
| 1409 | /* - layer A low - */\r |
| 1410 | lflags = 0 | (sh << 1);\r |
| 1411 | if (pvid->debug_p & PVD_FORCE_A)\r |
| 1412 | lflags |= LF_FORCE;\r |
| 1413 | if (pvid->debug_p & PVD_KILL_A)\r |
| 1414 | ;\r |
| 1415 | else if (hvwind == 1)\r |
| 1416 | DrawWindow(0, maxcells>>1, 0, sh, est);\r |
| 1417 | else if (hvwind == 2) {\r |
| 1418 | DrawLayer(lflags, HighCacheA, (win&0x80) ? 0 : edge<<1, (win&0x80) ? edge<<1 : maxcells, est);\r |
| 1419 | DrawWindow( (win&0x80) ? edge : 0, (win&0x80) ? maxcells>>1 : edge, 0, sh, est);\r |
| 1420 | }\r |
| 1421 | else\r |
| 1422 | DrawLayer(lflags, HighCacheA, 0, maxcells, est);\r |
| 1423 | /* - sprites low - */\r |
| 1424 | if (pvid->debug_p & PVD_KILL_S_LO)\r |
| 1425 | ;\r |
| 1426 | else if (est->rendstatus & PDRAW_INTERLACE)\r |
| 1427 | DrawAllSpritesInterlace(0, sh);\r |
| 1428 | else if (sprited[1] & SPRL_HAVE_LO)\r |
| 1429 | DrawAllSprites(sprited, 0, sh, est);\r |
| 1430 | \r |
| 1431 | /* - layer B hi - */\r |
| 1432 | if (!(pvid->debug_p & PVD_KILL_B) && HighCacheB[0])\r |
| 1433 | DrawTilesFromCache(HighCacheB, sh, maxw, est);\r |
| 1434 | /* - layer A hi - */\r |
| 1435 | if (pvid->debug_p & PVD_KILL_A)\r |
| 1436 | ;\r |
| 1437 | else if (hvwind == 1)\r |
| 1438 | DrawWindow(0, maxcells>>1, 1, sh, est);\r |
| 1439 | else if (hvwind == 2) {\r |
| 1440 | if (HighCacheA[0])\r |
| 1441 | DrawTilesFromCache(HighCacheA, sh, (win&0x80) ? edge<<4 : maxw, est);\r |
| 1442 | DrawWindow((win&0x80) ? edge : 0, (win&0x80) ? maxcells>>1 : edge, 1, sh, est);\r |
| 1443 | } else\r |
| 1444 | if (HighCacheA[0])\r |
| 1445 | DrawTilesFromCache(HighCacheA, sh, maxw, est);\r |
| 1446 | /* - sprites hi - */\r |
| 1447 | if (pvid->debug_p & PVD_KILL_S_HI)\r |
| 1448 | ;\r |
| 1449 | else if (est->rendstatus & PDRAW_INTERLACE)\r |
| 1450 | DrawAllSpritesInterlace(1, sh);\r |
| 1451 | // have sprites without layer pri bit ontop of sprites with that bit\r |
| 1452 | else if ((sprited[1] & 0xd0) == 0xd0 && (PicoIn.opt & POPT_ACC_SPRITES))\r |
| 1453 | DrawSpritesHiAS(sprited, sh);\r |
| 1454 | else if (sh && (sprited[1] & SPRL_MAY_HAVE_OP))\r |
| 1455 | DrawSpritesSHi(sprited, est);\r |
| 1456 | else if (sprited[1] & SPRL_HAVE_HI)\r |
| 1457 | DrawAllSprites(sprited, 1, 0, est);\r |
| 1458 | \r |
| 1459 | if (pvid->debug_p & PVD_FORCE_B)\r |
| 1460 | DrawTilesFromCacheForced(HighCacheB);\r |
| 1461 | else if (pvid->debug_p & PVD_FORCE_A)\r |
| 1462 | DrawTilesFromCacheForced(HighCacheA);\r |
| 1463 | \r |
| 1464 | #if 0\r |
| 1465 | {\r |
| 1466 | int *c, a, b;\r |
| 1467 | for (a = 0, c = HighCacheA; *c; c++, a++);\r |
| 1468 | for (b = 0, c = HighCacheB; *c; c++, b++);\r |
| 1469 | printf("%i:%03i: a=%i, b=%i\n", Pico.m.frame_count,\r |
| 1470 | Pico.est.DrawScanline, a, b);\r |
| 1471 | }\r |
| 1472 | #endif\r |
| 1473 | \r |
| 1474 | return 0;\r |
| 1475 | }\r |
| 1476 | \r |
| 1477 | // MUST be called every frame\r |
| 1478 | PICO_INTERNAL void PicoFrameStart(void)\r |
| 1479 | {\r |
| 1480 | int offs = 8, lines = 224;\r |
| 1481 | \r |
| 1482 | // prepare to do this frame\r |
| 1483 | Pico.est.rendstatus = 0;\r |
| 1484 | if ((Pico.video.reg[12] & 6) == 6)\r |
| 1485 | Pico.est.rendstatus |= PDRAW_INTERLACE; // interlace mode\r |
| 1486 | if (!(Pico.video.reg[12] & 1))\r |
| 1487 | Pico.est.rendstatus |= PDRAW_32_COLS;\r |
| 1488 | if (Pico.video.reg[1] & 8) {\r |
| 1489 | offs = 0;\r |
| 1490 | lines = 240;\r |
| 1491 | }\r |
| 1492 | \r |
| 1493 | if (Pico.est.rendstatus != rendstatus_old || lines != rendlines) {\r |
| 1494 | rendlines = lines;\r |
| 1495 | // mode_change() might reset rendstatus_old by calling SetColorFormat\r |
| 1496 | emu_video_mode_change((lines == 240) ? 0 : 8,\r |
| 1497 | lines, (Pico.video.reg[12] & 1) ? 0 : 1);\r |
| 1498 | rendstatus_old = Pico.est.rendstatus;\r |
| 1499 | }\r |
| 1500 | \r |
| 1501 | Pico.est.HighCol = HighColBase + offs * HighColIncrement;\r |
| 1502 | Pico.est.DrawLineDest = (char *)DrawLineDestBase + offs * DrawLineDestIncrement;\r |
| 1503 | Pico.est.DrawScanline = 0;\r |
| 1504 | skip_next_line = 0;\r |
| 1505 | \r |
| 1506 | if (PicoIn.opt & POPT_ALT_RENDERER)\r |
| 1507 | return;\r |
| 1508 | \r |
| 1509 | if (Pico.m.dirtyPal)\r |
| 1510 | Pico.m.dirtyPal = 2; // reset dirty if needed\r |
| 1511 | PrepareSprites(1);\r |
| 1512 | }\r |
| 1513 | \r |
| 1514 | static void DrawBlankedLine(int line, int offs, int sh, int bgc)\r |
| 1515 | {\r |
| 1516 | if (PicoScanBegin != NULL)\r |
| 1517 | PicoScanBegin(line + offs);\r |
| 1518 | \r |
| 1519 | BackFill(bgc, sh, &Pico.est);\r |
| 1520 | \r |
| 1521 | if (FinalizeLine != NULL)\r |
| 1522 | FinalizeLine(sh, line, &Pico.est);\r |
| 1523 | \r |
| 1524 | if (PicoScanEnd != NULL)\r |
| 1525 | PicoScanEnd(line + offs);\r |
| 1526 | \r |
| 1527 | Pico.est.HighCol += HighColIncrement;\r |
| 1528 | Pico.est.DrawLineDest = (char *)Pico.est.DrawLineDest + DrawLineDestIncrement;\r |
| 1529 | }\r |
| 1530 | \r |
| 1531 | static void PicoLine(int line, int offs, int sh, int bgc)\r |
| 1532 | {\r |
| 1533 | int skip = 0;\r |
| 1534 | \r |
| 1535 | if (skip_next_line > 0) {\r |
| 1536 | skip_next_line--;\r |
| 1537 | return;\r |
| 1538 | }\r |
| 1539 | \r |
| 1540 | Pico.est.DrawScanline = line;\r |
| 1541 | if (PicoScanBegin != NULL)\r |
| 1542 | skip = PicoScanBegin(line + offs);\r |
| 1543 | \r |
| 1544 | if (skip) {\r |
| 1545 | skip_next_line = skip - 1;\r |
| 1546 | return;\r |
| 1547 | }\r |
| 1548 | \r |
| 1549 | if (Pico.video.debug_p & (PVD_FORCE_A | PVD_FORCE_B))\r |
| 1550 | bgc = 0x3f;\r |
| 1551 | \r |
| 1552 | // Draw screen:\r |
| 1553 | BackFill(bgc, sh, &Pico.est);\r |
| 1554 | if (Pico.video.reg[1]&0x40)\r |
| 1555 | DrawDisplay(sh);\r |
| 1556 | \r |
| 1557 | if (FinalizeLine != NULL)\r |
| 1558 | FinalizeLine(sh, line, &Pico.est);\r |
| 1559 | \r |
| 1560 | if (PicoScanEnd != NULL)\r |
| 1561 | skip_next_line = PicoScanEnd(line + offs);\r |
| 1562 | \r |
| 1563 | Pico.est.HighCol += HighColIncrement;\r |
| 1564 | Pico.est.DrawLineDest = (char *)Pico.est.DrawLineDest + DrawLineDestIncrement;\r |
| 1565 | }\r |
| 1566 | \r |
| 1567 | void PicoDrawSync(int to, int blank_last_line)\r |
| 1568 | {\r |
| 1569 | int line, offs = 0;\r |
| 1570 | int sh = (Pico.video.reg[0xC] & 8) >> 3; // shadow/hilight?\r |
| 1571 | int bgc = Pico.video.reg[7];\r |
| 1572 | \r |
| 1573 | pprof_start(draw);\r |
| 1574 | \r |
| 1575 | if (rendlines != 240) {\r |
| 1576 | offs = 8;\r |
| 1577 | if (to > 223)\r |
| 1578 | to = 223;\r |
| 1579 | }\r |
| 1580 | \r |
| 1581 | for (line = Pico.est.DrawScanline; line < to; line++)\r |
| 1582 | PicoLine(line, offs, sh, bgc);\r |
| 1583 | \r |
| 1584 | // last line\r |
| 1585 | if (line <= to)\r |
| 1586 | {\r |
| 1587 | if (blank_last_line)\r |
| 1588 | DrawBlankedLine(line, offs, sh, bgc);\r |
| 1589 | else PicoLine(line, offs, sh, bgc);\r |
| 1590 | line++;\r |
| 1591 | }\r |
| 1592 | Pico.est.DrawScanline = line;\r |
| 1593 | \r |
| 1594 | pprof_end(draw);\r |
| 1595 | }\r |
| 1596 | \r |
| 1597 | // also works for fast renderer\r |
| 1598 | void PicoDrawUpdateHighPal(void)\r |
| 1599 | {\r |
| 1600 | struct PicoEState *est = &Pico.est;\r |
| 1601 | int sh = (Pico.video.reg[0xC] & 8) >> 3; // shadow/hilight?\r |
| 1602 | if (PicoIn.opt & POPT_ALT_RENDERER)\r |
| 1603 | sh = 0; // no s/h support\r |
| 1604 | \r |
| 1605 | PicoDoHighPal555(sh, 0, &Pico.est);\r |
| 1606 | if (est->rendstatus & PDRAW_SONIC_MODE) {\r |
| 1607 | // FIXME?\r |
| 1608 | memcpy(est->HighPal + 0x40, est->HighPal, 0x40*2);\r |
| 1609 | memcpy(est->HighPal + 0x80, est->HighPal, 0x40*2);\r |
| 1610 | }\r |
| 1611 | }\r |
| 1612 | \r |
| 1613 | void PicoDrawSetOutFormat(pdso_t which, int use_32x_line_mode)\r |
| 1614 | {\r |
| 1615 | switch (which)\r |
| 1616 | {\r |
| 1617 | case PDF_8BIT:\r |
| 1618 | FinalizeLine = FinalizeLine8bit;\r |
| 1619 | break;\r |
| 1620 | \r |
| 1621 | case PDF_RGB555:\r |
| 1622 | if ((PicoIn.AHW & PAHW_32X) && use_32x_line_mode)\r |
| 1623 | FinalizeLine = FinalizeLine32xRGB555;\r |
| 1624 | else\r |
| 1625 | FinalizeLine = FinalizeLine555;\r |
| 1626 | break;\r |
| 1627 | \r |
| 1628 | default:\r |
| 1629 | FinalizeLine = NULL;\r |
| 1630 | break;\r |
| 1631 | }\r |
| 1632 | PicoDrawSetOutFormat32x(which, use_32x_line_mode);\r |
| 1633 | PicoDrawSetOutputMode4(which);\r |
| 1634 | rendstatus_old = -1;\r |
| 1635 | }\r |
| 1636 | \r |
| 1637 | // note: may be called on the middle of frame\r |
| 1638 | void PicoDrawSetOutBuf(void *dest, int increment)\r |
| 1639 | {\r |
| 1640 | DrawLineDestBase = dest;\r |
| 1641 | DrawLineDestIncrement = increment;\r |
| 1642 | Pico.est.DrawLineDest = (char *)DrawLineDestBase + Pico.est.DrawScanline * increment;\r |
| 1643 | }\r |
| 1644 | \r |
| 1645 | void PicoDrawSetInternalBuf(void *dest, int increment)\r |
| 1646 | {\r |
| 1647 | if (dest != NULL) {\r |
| 1648 | HighColBase = dest;\r |
| 1649 | HighColIncrement = increment;\r |
| 1650 | Pico.est.HighCol = HighColBase + Pico.est.DrawScanline * increment;\r |
| 1651 | }\r |
| 1652 | else {\r |
| 1653 | HighColBase = DefHighCol;\r |
| 1654 | HighColIncrement = 0;\r |
| 1655 | }\r |
| 1656 | }\r |
| 1657 | \r |
| 1658 | void PicoDrawSetCallbacks(int (*begin)(unsigned int num), int (*end)(unsigned int num))\r |
| 1659 | {\r |
| 1660 | PicoScanBegin = NULL;\r |
| 1661 | PicoScanEnd = NULL;\r |
| 1662 | PicoScan32xBegin = NULL;\r |
| 1663 | PicoScan32xEnd = NULL;\r |
| 1664 | \r |
| 1665 | if ((PicoIn.AHW & PAHW_32X) && FinalizeLine != FinalizeLine32xRGB555) {\r |
| 1666 | PicoScan32xBegin = begin;\r |
| 1667 | PicoScan32xEnd = end;\r |
| 1668 | }\r |
| 1669 | else {\r |
| 1670 | PicoScanBegin = begin;\r |
| 1671 | PicoScanEnd = end;\r |
| 1672 | }\r |
| 1673 | }\r |
| 1674 | \r |
| 1675 | void PicoDrawInit(void)\r |
| 1676 | {\r |
| 1677 | Pico.est.DrawLineDest = DefOutBuff;\r |
| 1678 | Pico.est.HighCol = HighColBase;\r |
| 1679 | Pico.est.HighPreSpr = HighPreSpr;\r |
| 1680 | rendstatus_old = -1;\r |
| 1681 | }\r |
| 1682 | \r |
| 1683 | // vim:ts=2:sw=2:expandtab\r |