Mercurial > sdl-ios-xcode
annotate src/hermes/x86p_32.asm @ 1197:bb5ace455586
Fixed compiling with gcc 4, patch applied from Gentoo Bugzilla:
http://bugs.gentoo.org/show_bug.cgi?id=87809
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Thu, 08 Dec 2005 14:41:49 +0000 |
| parents | da33b7e6d181 |
| children | 2d6dc7de1145 |
| rev | line source |
|---|---|
| 0 | 1 ; |
| 2 ; x86 format converters for HERMES | |
| 3 ; Some routines Copyright (c) 1998 Christian Nentwich (brn@eleet.mcb.at) | |
| 4 ; This source code is licensed under the GNU LGPL | |
| 5 ; | |
| 6 ; Please refer to the file COPYING.LIB contained in the distribution for | |
| 7 ; licensing conditions | |
| 8 ; | |
| 9 ; Most routines are (c) Glenn Fiedler (ptc@gaffer.org), used with permission | |
| 10 ; | |
| 11 | |
| 12 | |
| 13 BITS 32 | |
| 14 | |
| 15 GLOBAL _ConvertX86p32_32BGR888 | |
| 16 GLOBAL _ConvertX86p32_32RGBA888 | |
| 17 GLOBAL _ConvertX86p32_32BGRA888 | |
| 18 GLOBAL _ConvertX86p32_24RGB888 | |
| 19 GLOBAL _ConvertX86p32_24BGR888 | |
| 20 GLOBAL _ConvertX86p32_16RGB565 | |
| 21 GLOBAL _ConvertX86p32_16BGR565 | |
| 22 GLOBAL _ConvertX86p32_16RGB555 | |
| 23 GLOBAL _ConvertX86p32_16BGR555 | |
| 24 GLOBAL _ConvertX86p32_8RGB332 | |
| 25 | |
| 26 EXTERN _x86return | |
|
1166
da33b7e6d181
Date: Tue, 1 Nov 2005 20:25:10 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
27 |
|
da33b7e6d181
Date: Tue, 1 Nov 2005 20:25:10 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
28 SECTION .note.GNU-stack noalloc progbits noexec nowrite |
| 0 | 29 SECTION .text |
| 30 | |
| 31 | |
| 32 ;; _Convert_* | |
| 33 ;; Paramters: | |
| 34 ;; ESI = source | |
| 35 ;; EDI = dest | |
| 36 ;; ECX = amount (NOT 0!!! (the _ConvertX86 routine checks for that though)) | |
| 37 ;; Destroys: | |
| 38 ;; EAX, EBX, EDX | |
| 39 | |
| 40 | |
| 41 _ConvertX86p32_32BGR888: | |
| 42 | |
| 43 ; check short | |
| 44 cmp ecx,BYTE 32 | |
| 45 ja .L3 | |
| 46 | |
| 47 .L1 ; short loop | |
| 48 mov edx,[esi] | |
| 49 bswap edx | |
| 50 ror edx,8 | |
| 51 mov [edi],edx | |
| 52 add esi,BYTE 4 | |
| 53 add edi,BYTE 4 | |
| 54 dec ecx | |
| 55 jnz .L1 | |
| 56 .L2 | |
| 57 jmp _x86return | |
| 58 | |
| 59 .L3 ; save ebp | |
| 60 push ebp | |
| 61 | |
| 62 ; unroll four times | |
| 63 mov ebp,ecx | |
| 64 shr ebp,2 | |
| 65 | |
| 66 ; save count | |
| 67 push ecx | |
| 68 | |
| 69 .L4 mov eax,[esi] | |
| 70 mov ebx,[esi+4] | |
| 71 | |
| 72 bswap eax | |
| 73 | |
| 74 bswap ebx | |
| 75 | |
| 76 ror eax,8 | |
| 77 mov ecx,[esi+8] | |
| 78 | |
| 79 ror ebx,8 | |
| 80 mov edx,[esi+12] | |
| 81 | |
| 82 bswap ecx | |
| 83 | |
| 84 bswap edx | |
| 85 | |
| 86 ror ecx,8 | |
| 87 mov [edi+0],eax | |
| 88 | |
| 89 ror edx,8 | |
| 90 mov [edi+4],ebx | |
| 91 | |
| 92 mov [edi+8],ecx | |
| 93 mov [edi+12],edx | |
| 94 | |
| 95 add esi,BYTE 16 | |
| 96 add edi,BYTE 16 | |
| 97 | |
| 98 dec ebp | |
| 99 jnz .L4 | |
| 100 | |
| 101 ; check tail | |
| 102 pop ecx | |
| 103 and ecx,BYTE 11b | |
| 104 jz .L6 | |
| 105 | |
| 106 .L5 ; tail loop | |
| 107 mov edx,[esi] | |
| 108 bswap edx | |
| 109 ror edx,8 | |
| 110 mov [edi],edx | |
| 111 add esi,BYTE 4 | |
| 112 add edi,BYTE 4 | |
| 113 dec ecx | |
| 114 jnz .L5 | |
| 115 | |
| 116 .L6 pop ebp | |
| 117 jmp _x86return | |
| 118 | |
| 119 | |
| 120 | |
| 121 | |
| 122 _ConvertX86p32_32RGBA888: | |
| 123 | |
| 124 ; check short | |
| 125 cmp ecx,BYTE 32 | |
| 126 ja .L3 | |
| 127 | |
| 128 .L1 ; short loop | |
| 129 mov edx,[esi] | |
| 130 rol edx,8 | |
| 131 mov [edi],edx | |
| 132 add esi,BYTE 4 | |
| 133 add edi,BYTE 4 | |
| 134 dec ecx | |
| 135 jnz .L1 | |
| 136 .L2 | |
| 137 jmp _x86return | |
| 138 | |
| 139 .L3 ; save ebp | |
| 140 push ebp | |
| 141 | |
| 142 ; unroll four times | |
| 143 mov ebp,ecx | |
| 144 shr ebp,2 | |
| 145 | |
| 146 ; save count | |
| 147 push ecx | |
| 148 | |
| 149 .L4 mov eax,[esi] | |
| 150 mov ebx,[esi+4] | |
| 151 | |
| 152 rol eax,8 | |
| 153 mov ecx,[esi+8] | |
| 154 | |
| 155 rol ebx,8 | |
| 156 mov edx,[esi+12] | |
| 157 | |
| 158 rol ecx,8 | |
| 159 mov [edi+0],eax | |
| 160 | |
| 161 rol edx,8 | |
| 162 mov [edi+4],ebx | |
| 163 | |
| 164 mov [edi+8],ecx | |
| 165 mov [edi+12],edx | |
| 166 | |
| 167 add esi,BYTE 16 | |
| 168 add edi,BYTE 16 | |
| 169 | |
| 170 dec ebp | |
| 171 jnz .L4 | |
| 172 | |
| 173 ; check tail | |
| 174 pop ecx | |
| 175 and ecx,BYTE 11b | |
| 176 jz .L6 | |
| 177 | |
| 178 .L5 ; tail loop | |
| 179 mov edx,[esi] | |
| 180 rol edx,8 | |
| 181 mov [edi],edx | |
| 182 add esi,BYTE 4 | |
| 183 add edi,BYTE 4 | |
| 184 dec ecx | |
| 185 jnz .L5 | |
| 186 | |
| 187 .L6 pop ebp | |
| 188 jmp _x86return | |
| 189 | |
| 190 | |
| 191 | |
| 192 | |
| 193 _ConvertX86p32_32BGRA888: | |
| 194 | |
| 195 ; check short | |
| 196 cmp ecx,BYTE 32 | |
| 197 ja .L3 | |
| 198 | |
| 199 .L1 ; short loop | |
| 200 mov edx,[esi] | |
| 201 bswap edx | |
| 202 mov [edi],edx | |
| 203 add esi,BYTE 4 | |
| 204 add edi,BYTE 4 | |
| 205 dec ecx | |
| 206 jnz .L1 | |
| 207 .L2 | |
| 208 jmp _x86return | |
| 209 | |
| 210 .L3 ; save ebp | |
| 211 push ebp | |
| 212 | |
| 213 ; unroll four times | |
| 214 mov ebp,ecx | |
| 215 shr ebp,2 | |
| 216 | |
| 217 ; save count | |
| 218 push ecx | |
| 219 | |
| 220 .L4 mov eax,[esi] | |
| 221 mov ebx,[esi+4] | |
| 222 | |
| 223 mov ecx,[esi+8] | |
| 224 mov edx,[esi+12] | |
| 225 | |
| 226 bswap eax | |
| 227 | |
| 228 bswap ebx | |
| 229 | |
| 230 bswap ecx | |
| 231 | |
| 232 bswap edx | |
| 233 | |
| 234 mov [edi+0],eax | |
| 235 mov [edi+4],ebx | |
| 236 | |
| 237 mov [edi+8],ecx | |
| 238 mov [edi+12],edx | |
| 239 | |
| 240 add esi,BYTE 16 | |
| 241 add edi,BYTE 16 | |
| 242 | |
| 243 dec ebp | |
| 244 jnz .L4 | |
| 245 | |
| 246 ; check tail | |
| 247 pop ecx | |
| 248 and ecx,BYTE 11b | |
| 249 jz .L6 | |
| 250 | |
| 251 .L5 ; tail loop | |
| 252 mov edx,[esi] | |
| 253 bswap edx | |
| 254 mov [edi],edx | |
| 255 add esi,BYTE 4 | |
| 256 add edi,BYTE 4 | |
| 257 dec ecx | |
| 258 jnz .L5 | |
| 259 | |
| 260 .L6 pop ebp | |
| 261 jmp _x86return | |
| 262 | |
| 263 | |
| 264 | |
| 265 | |
| 266 ;; 32 bit RGB 888 to 24 BIT RGB 888 | |
| 267 | |
| 268 _ConvertX86p32_24RGB888: | |
| 269 | |
| 270 ; check short | |
| 271 cmp ecx,BYTE 32 | |
| 272 ja .L3 | |
| 273 | |
| 274 .L1 ; short loop | |
| 275 mov al,[esi] | |
| 276 mov bl,[esi+1] | |
| 277 mov dl,[esi+2] | |
| 278 mov [edi],al | |
| 279 mov [edi+1],bl | |
| 280 mov [edi+2],dl | |
| 281 add esi,BYTE 4 | |
| 282 add edi,BYTE 3 | |
| 283 dec ecx | |
| 284 jnz .L1 | |
| 285 .L2 | |
| 286 jmp _x86return | |
| 287 | |
| 288 .L3 ; head | |
| 289 mov edx,edi | |
| 290 and edx,BYTE 11b | |
| 291 jz .L4 | |
| 292 mov al,[esi] | |
| 293 mov bl,[esi+1] | |
| 294 mov dl,[esi+2] | |
| 295 mov [edi],al | |
| 296 mov [edi+1],bl | |
| 297 mov [edi+2],dl | |
| 298 add esi,BYTE 4 | |
| 299 add edi,BYTE 3 | |
| 300 dec ecx | |
| 301 jmp SHORT .L3 | |
| 302 | |
| 303 .L4 ; unroll 4 times | |
| 304 push ebp | |
| 305 mov ebp,ecx | |
| 306 shr ebp,2 | |
| 307 | |
| 308 ; save count | |
| 309 push ecx | |
| 310 | |
| 311 .L5 mov eax,[esi] ; first dword eax = [A][R][G][B] | |
| 312 mov ebx,[esi+4] ; second dword ebx = [a][r][g][b] | |
| 313 | |
| 314 shl eax,8 ; eax = [R][G][B][.] | |
| 315 mov ecx,[esi+12] ; third dword ecx = [a][r][g][b] | |
| 316 | |
| 317 shl ebx,8 ; ebx = [r][g][b][.] | |
| 318 mov al,[esi+4] ; eax = [R][G][B][b] | |
| 319 | |
| 320 ror eax,8 ; eax = [b][R][G][B] (done) | |
| 321 mov bh,[esi+8+1] ; ebx = [r][g][G][.] | |
| 322 | |
| 323 mov [edi],eax | |
| 324 add edi,BYTE 3*4 | |
| 325 | |
| 326 shl ecx,8 ; ecx = [r][g][b][.] | |
| 327 mov bl,[esi+8+0] ; ebx = [r][g][G][B] | |
| 328 | |
| 329 rol ebx,16 ; ebx = [G][B][r][g] (done) | |
| 330 mov cl,[esi+8+2] ; ecx = [r][g][b][R] (done) | |
| 331 | |
| 332 mov [edi+4-3*4],ebx | |
| 333 add esi,BYTE 4*4 | |
| 334 | |
| 335 mov [edi+8-3*4],ecx | |
| 336 dec ebp | |
| 337 | |
| 338 jnz .L5 | |
| 339 | |
| 340 ; check tail | |
| 341 pop ecx | |
| 342 and ecx,BYTE 11b | |
| 343 jz .L7 | |
| 344 | |
| 345 .L6 ; tail loop | |
| 346 mov al,[esi] | |
| 347 mov bl,[esi+1] | |
| 348 mov dl,[esi+2] | |
| 349 mov [edi],al | |
| 350 mov [edi+1],bl | |
| 351 mov [edi+2],dl | |
| 352 add esi,BYTE 4 | |
| 353 add edi,BYTE 3 | |
| 354 dec ecx | |
| 355 jnz .L6 | |
| 356 | |
| 357 .L7 pop ebp | |
| 358 jmp _x86return | |
| 359 | |
| 360 | |
| 361 | |
| 362 | |
| 363 ;; 32 bit RGB 888 to 24 bit BGR 888 | |
| 364 | |
| 365 _ConvertX86p32_24BGR888: | |
| 366 | |
| 367 ; check short | |
| 368 cmp ecx,BYTE 32 | |
| 369 ja .L3 | |
| 370 | |
| 371 | |
| 372 .L1 ; short loop | |
| 373 mov dl,[esi] | |
| 374 mov bl,[esi+1] | |
| 375 mov al,[esi+2] | |
| 376 mov [edi],al | |
| 377 mov [edi+1],bl | |
| 378 mov [edi+2],dl | |
| 379 add esi,BYTE 4 | |
| 380 add edi,BYTE 3 | |
| 381 dec ecx | |
| 382 jnz .L1 | |
| 383 .L2 | |
| 384 jmp _x86return | |
| 385 | |
| 386 .L3 ; head | |
| 387 mov edx,edi | |
| 388 and edx,BYTE 11b | |
| 389 jz .L4 | |
| 390 mov dl,[esi] | |
| 391 mov bl,[esi+1] | |
| 392 mov al,[esi+2] | |
| 393 mov [edi],al | |
| 394 mov [edi+1],bl | |
| 395 mov [edi+2],dl | |
| 396 add esi,BYTE 4 | |
| 397 add edi,BYTE 3 | |
| 398 dec ecx | |
| 399 jmp SHORT .L3 | |
| 400 | |
| 401 .L4 ; unroll 4 times | |
| 402 push ebp | |
| 403 mov ebp,ecx | |
| 404 shr ebp,2 | |
| 405 | |
| 406 ; save count | |
| 407 push ecx | |
| 408 | |
| 409 .L5 | |
| 410 mov eax,[esi] ; first dword eax = [A][R][G][B] | |
| 411 mov ebx,[esi+4] ; second dword ebx = [a][r][g][b] | |
| 412 | |
| 413 bswap eax ; eax = [B][G][R][A] | |
| 414 | |
| 415 bswap ebx ; ebx = [b][g][r][a] | |
| 416 | |
| 417 mov al,[esi+4+2] ; eax = [B][G][R][r] | |
| 418 mov bh,[esi+4+4+1] ; ebx = [b][g][G][a] | |
| 419 | |
| 420 ror eax,8 ; eax = [r][B][G][R] (done) | |
| 421 mov bl,[esi+4+4+2] ; ebx = [b][g][G][R] | |
| 422 | |
| 423 ror ebx,16 ; ebx = [G][R][b][g] (done) | |
| 424 mov [edi],eax | |
| 425 | |
| 426 mov [edi+4],ebx | |
| 427 mov ecx,[esi+12] ; third dword ecx = [a][r][g][b] | |
| 428 | |
| 429 bswap ecx ; ecx = [b][g][r][a] | |
| 430 | |
| 431 mov cl,[esi+8] ; ecx = [b][g][r][B] (done) | |
| 432 add esi,BYTE 4*4 | |
| 433 | |
| 434 mov [edi+8],ecx | |
| 435 add edi,BYTE 3*4 | |
| 436 | |
| 437 dec ebp | |
| 438 jnz .L5 | |
| 439 | |
| 440 ; check tail | |
| 441 pop ecx | |
| 442 and ecx,BYTE 11b | |
| 443 jz .L7 | |
| 444 | |
| 445 .L6 ; tail loop | |
| 446 mov dl,[esi] | |
| 447 mov bl,[esi+1] | |
| 448 mov al,[esi+2] | |
| 449 mov [edi],al | |
| 450 mov [edi+1],bl | |
| 451 mov [edi+2],dl | |
| 452 add esi,BYTE 4 | |
| 453 add edi,BYTE 3 | |
| 454 dec ecx | |
| 455 jnz .L6 | |
| 456 | |
| 457 .L7 | |
| 458 pop ebp | |
| 459 jmp _x86return | |
| 460 | |
| 461 | |
| 462 | |
| 463 | |
| 464 ;; 32 bit RGB 888 to 16 BIT RGB 565 | |
| 465 | |
| 466 _ConvertX86p32_16RGB565: | |
| 467 ; check short | |
| 468 cmp ecx,BYTE 16 | |
| 469 ja .L3 | |
| 470 | |
| 471 .L1 ; short loop | |
| 472 mov bl,[esi+0] ; blue | |
| 473 mov al,[esi+1] ; green | |
| 474 mov ah,[esi+2] ; red | |
| 475 shr ah,3 | |
| 476 and al,11111100b | |
| 477 shl eax,3 | |
| 478 shr bl,3 | |
| 479 add al,bl | |
| 480 mov [edi+0],al | |
| 481 mov [edi+1],ah | |
| 482 add esi,BYTE 4 | |
| 483 add edi,BYTE 2 | |
| 484 dec ecx | |
| 485 jnz .L1 | |
| 486 | |
| 487 .L2: ; End of short loop | |
| 488 jmp _x86return | |
| 489 | |
| 490 | |
| 491 .L3 ; head | |
| 492 mov ebx,edi | |
| 493 and ebx,BYTE 11b | |
| 494 jz .L4 | |
| 495 | |
| 496 mov bl,[esi+0] ; blue | |
| 497 mov al,[esi+1] ; green | |
| 498 mov ah,[esi+2] ; red | |
| 499 shr ah,3 | |
| 500 and al,11111100b | |
| 501 shl eax,3 | |
| 502 shr bl,3 | |
| 503 add al,bl | |
| 504 mov [edi+0],al | |
| 505 mov [edi+1],ah | |
| 506 add esi,BYTE 4 | |
| 507 add edi,BYTE 2 | |
| 508 dec ecx | |
| 509 | |
| 510 .L4: | |
| 511 ; save count | |
| 512 push ecx | |
| 513 | |
| 514 ; unroll twice | |
| 515 shr ecx,1 | |
| 516 | |
| 517 ; point arrays to end | |
| 518 lea esi,[esi+ecx*8] | |
| 519 lea edi,[edi+ecx*4] | |
| 520 | |
| 521 ; negative counter | |
| 522 neg ecx | |
| 523 jmp SHORT .L6 | |
| 524 | |
| 525 .L5: | |
| 526 mov [edi+ecx*4-4],eax | |
| 527 .L6: | |
| 528 mov eax,[esi+ecx*8] | |
| 529 | |
| 530 shr ah,2 | |
| 531 mov ebx,[esi+ecx*8+4] | |
| 532 | |
| 533 shr eax,3 | |
| 534 mov edx,[esi+ecx*8+4] | |
| 535 | |
| 536 shr bh,2 | |
| 537 mov dl,[esi+ecx*8+2] | |
| 538 | |
| 539 shl ebx,13 | |
| 540 and eax,000007FFh | |
| 541 | |
| 542 shl edx,8 | |
| 543 and ebx,07FF0000h | |
| 544 | |
| 545 and edx,0F800F800h | |
| 546 add eax,ebx | |
| 547 | |
| 548 add eax,edx | |
| 549 inc ecx | |
| 550 | |
| 551 jnz .L5 | |
| 552 | |
| 553 mov [edi+ecx*4-4],eax | |
| 554 | |
| 555 ; tail | |
| 556 pop ecx | |
| 557 test cl,1 | |
| 558 jz .L7 | |
| 559 | |
| 560 mov bl,[esi+0] ; blue | |
| 561 mov al,[esi+1] ; green | |
| 562 mov ah,[esi+2] ; red | |
| 563 shr ah,3 | |
| 564 and al,11111100b | |
| 565 shl eax,3 | |
| 566 shr bl,3 | |
| 567 add al,bl | |
| 568 mov [edi+0],al | |
| 569 mov [edi+1],ah | |
| 570 add esi,BYTE 4 | |
| 571 add edi,BYTE 2 | |
| 572 | |
| 573 .L7: | |
| 574 jmp _x86return | |
| 575 | |
| 576 | |
| 577 | |
| 578 | |
| 579 ;; 32 bit RGB 888 to 16 BIT BGR 565 | |
| 580 | |
| 581 _ConvertX86p32_16BGR565: | |
| 582 | |
| 583 ; check short | |
| 584 cmp ecx,BYTE 16 | |
| 585 ja .L3 | |
| 586 | |
| 587 .L1 ; short loop | |
| 588 mov ah,[esi+0] ; blue | |
| 589 mov al,[esi+1] ; green | |
| 590 mov bl,[esi+2] ; red | |
| 591 shr ah,3 | |
| 592 and al,11111100b | |
| 593 shl eax,3 | |
| 594 shr bl,3 | |
| 595 add al,bl | |
| 596 mov [edi+0],al | |
| 597 mov [edi+1],ah | |
| 598 add esi,BYTE 4 | |
| 599 add edi,BYTE 2 | |
| 600 dec ecx | |
| 601 jnz .L1 | |
| 602 .L2 | |
| 603 jmp _x86return | |
| 604 | |
| 605 .L3 ; head | |
| 606 mov ebx,edi | |
| 607 and ebx,BYTE 11b | |
| 608 jz .L4 | |
| 609 mov ah,[esi+0] ; blue | |
| 610 mov al,[esi+1] ; green | |
| 611 mov bl,[esi+2] ; red | |
| 612 shr ah,3 | |
| 613 and al,11111100b | |
| 614 shl eax,3 | |
| 615 shr bl,3 | |
| 616 add al,bl | |
| 617 mov [edi+0],al | |
| 618 mov [edi+1],ah | |
| 619 add esi,BYTE 4 | |
| 620 add edi,BYTE 2 | |
| 621 dec ecx | |
| 622 | |
| 623 .L4 ; save count | |
| 624 push ecx | |
| 625 | |
| 626 ; unroll twice | |
| 627 shr ecx,1 | |
| 628 | |
| 629 ; point arrays to end | |
| 630 lea esi,[esi+ecx*8] | |
| 631 lea edi,[edi+ecx*4] | |
| 632 | |
| 633 ; negative count | |
| 634 neg ecx | |
| 635 jmp SHORT .L6 | |
| 636 | |
| 637 .L5 | |
| 638 mov [edi+ecx*4-4],eax | |
| 639 .L6 | |
| 640 mov edx,[esi+ecx*8+4] | |
| 641 | |
| 642 mov bh,[esi+ecx*8+4] | |
| 643 mov ah,[esi+ecx*8] | |
| 644 | |
| 645 shr bh,3 | |
| 646 mov al,[esi+ecx*8+1] | |
| 647 | |
| 648 shr ah,3 | |
| 649 mov bl,[esi+ecx*8+5] | |
| 650 | |
| 651 shl eax,3 | |
| 652 mov dl,[esi+ecx*8+2] | |
| 653 | |
| 654 shl ebx,19 | |
| 655 and eax,0000FFE0h | |
| 656 | |
| 657 shr edx,3 | |
| 658 and ebx,0FFE00000h | |
| 659 | |
| 660 and edx,001F001Fh | |
| 661 add eax,ebx | |
| 662 | |
| 663 add eax,edx | |
| 664 inc ecx | |
| 665 | |
| 666 jnz .L5 | |
| 667 | |
| 668 mov [edi+ecx*4-4],eax | |
| 669 | |
| 670 ; tail | |
| 671 pop ecx | |
| 672 and ecx,BYTE 1 | |
| 673 jz .L7 | |
| 674 mov ah,[esi+0] ; blue | |
| 675 mov al,[esi+1] ; green | |
| 676 mov bl,[esi+2] ; red | |
| 677 shr ah,3 | |
| 678 and al,11111100b | |
| 679 shl eax,3 | |
| 680 shr bl,3 | |
| 681 add al,bl | |
| 682 mov [edi+0],al | |
| 683 mov [edi+1],ah | |
| 684 add esi,BYTE 4 | |
| 685 add edi,BYTE 2 | |
| 686 | |
| 687 .L7 | |
| 688 jmp _x86return | |
| 689 | |
| 690 | |
| 691 | |
| 692 | |
| 693 ;; 32 BIT RGB TO 16 BIT RGB 555 | |
| 694 | |
| 695 _ConvertX86p32_16RGB555: | |
| 696 | |
| 697 ; check short | |
| 698 cmp ecx,BYTE 16 | |
| 699 ja .L3 | |
| 700 | |
| 701 .L1 ; short loop | |
| 702 mov bl,[esi+0] ; blue | |
| 703 mov al,[esi+1] ; green | |
| 704 mov ah,[esi+2] ; red | |
| 705 shr ah,3 | |
| 706 and al,11111000b | |
| 707 shl eax,2 | |
| 708 shr bl,3 | |
| 709 add al,bl | |
| 710 mov [edi+0],al | |
| 711 mov [edi+1],ah | |
| 712 add esi,BYTE 4 | |
| 713 add edi,BYTE 2 | |
| 714 dec ecx | |
| 715 jnz .L1 | |
| 716 .L2 | |
| 717 jmp _x86return | |
| 718 | |
| 719 .L3 ; head | |
| 720 mov ebx,edi | |
| 721 and ebx,BYTE 11b | |
| 722 jz .L4 | |
| 723 mov bl,[esi+0] ; blue | |
| 724 mov al,[esi+1] ; green | |
| 725 mov ah,[esi+2] ; red | |
| 726 shr ah,3 | |
| 727 and al,11111000b | |
| 728 shl eax,2 | |
| 729 shr bl,3 | |
| 730 add al,bl | |
| 731 mov [edi+0],al | |
| 732 mov [edi+1],ah | |
| 733 add esi,BYTE 4 | |
| 734 add edi,BYTE 2 | |
| 735 dec ecx | |
| 736 | |
| 737 .L4 ; save count | |
| 738 push ecx | |
| 739 | |
| 740 ; unroll twice | |
| 741 shr ecx,1 | |
| 742 | |
| 743 ; point arrays to end | |
| 744 lea esi,[esi+ecx*8] | |
| 745 lea edi,[edi+ecx*4] | |
| 746 | |
| 747 ; negative counter | |
| 748 neg ecx | |
| 749 jmp SHORT .L6 | |
| 750 | |
| 751 .L5 | |
| 752 mov [edi+ecx*4-4],eax | |
| 753 .L6 | |
| 754 mov eax,[esi+ecx*8] | |
| 755 | |
| 756 shr ah,3 | |
| 757 mov ebx,[esi+ecx*8+4] | |
| 758 | |
| 759 shr eax,3 | |
| 760 mov edx,[esi+ecx*8+4] | |
| 761 | |
| 762 shr bh,3 | |
| 763 mov dl,[esi+ecx*8+2] | |
| 764 | |
| 765 shl ebx,13 | |
| 766 and eax,000007FFh | |
| 767 | |
| 768 shl edx,7 | |
| 769 and ebx,07FF0000h | |
| 770 | |
| 771 and edx,07C007C00h | |
| 772 add eax,ebx | |
| 773 | |
| 774 add eax,edx | |
| 775 inc ecx | |
| 776 | |
| 777 jnz .L5 | |
| 778 | |
| 779 mov [edi+ecx*4-4],eax | |
| 780 | |
| 781 ; tail | |
| 782 pop ecx | |
| 783 and ecx,BYTE 1 | |
| 784 jz .L7 | |
| 785 mov bl,[esi+0] ; blue | |
| 786 mov al,[esi+1] ; green | |
| 787 mov ah,[esi+2] ; red | |
| 788 shr ah,3 | |
| 789 and al,11111000b | |
| 790 shl eax,2 | |
| 791 shr bl,3 | |
| 792 add al,bl | |
| 793 mov [edi+0],al | |
| 794 mov [edi+1],ah | |
| 795 add esi,BYTE 4 | |
| 796 add edi,BYTE 2 | |
| 797 | |
| 798 .L7 | |
| 799 jmp _x86return | |
| 800 | |
| 801 | |
| 802 | |
| 803 | |
| 804 ;; 32 BIT RGB TO 16 BIT BGR 555 | |
| 805 | |
| 806 _ConvertX86p32_16BGR555: | |
| 807 | |
| 808 ; check short | |
| 809 cmp ecx,BYTE 16 | |
| 810 ja .L3 | |
| 811 | |
| 812 | |
| 813 .L1 ; short loop | |
| 814 mov ah,[esi+0] ; blue | |
| 815 mov al,[esi+1] ; green | |
| 816 mov bl,[esi+2] ; red | |
| 817 shr ah,3 | |
| 818 and al,11111000b | |
| 819 shl eax,2 | |
| 820 shr bl,3 | |
| 821 add al,bl | |
| 822 mov [edi+0],al | |
| 823 mov [edi+1],ah | |
| 824 add esi,BYTE 4 | |
| 825 add edi,BYTE 2 | |
| 826 dec ecx | |
| 827 jnz .L1 | |
| 828 .L2 | |
| 829 jmp _x86return | |
| 830 | |
| 831 .L3 ; head | |
| 832 mov ebx,edi | |
| 833 and ebx,BYTE 11b | |
| 834 jz .L4 | |
| 835 mov ah,[esi+0] ; blue | |
| 836 mov al,[esi+1] ; green | |
| 837 mov bl,[esi+2] ; red | |
| 838 shr ah,3 | |
| 839 and al,11111000b | |
| 840 shl eax,2 | |
| 841 shr bl,3 | |
| 842 add al,bl | |
| 843 mov [edi+0],al | |
| 844 mov [edi+1],ah | |
| 845 add esi,BYTE 4 | |
| 846 add edi,BYTE 2 | |
| 847 dec ecx | |
| 848 | |
| 849 .L4 ; save count | |
| 850 push ecx | |
| 851 | |
| 852 ; unroll twice | |
| 853 shr ecx,1 | |
| 854 | |
| 855 ; point arrays to end | |
| 856 lea esi,[esi+ecx*8] | |
| 857 lea edi,[edi+ecx*4] | |
| 858 | |
| 859 ; negative counter | |
| 860 neg ecx | |
| 861 jmp SHORT .L6 | |
| 862 | |
| 863 .L5 | |
| 864 mov [edi+ecx*4-4],eax | |
| 865 .L6 | |
| 866 mov edx,[esi+ecx*8+4] | |
| 867 | |
| 868 mov bh,[esi+ecx*8+4] | |
| 869 mov ah,[esi+ecx*8] | |
| 870 | |
| 871 shr bh,3 | |
| 872 mov al,[esi+ecx*8+1] | |
| 873 | |
| 874 shr ah,3 | |
| 875 mov bl,[esi+ecx*8+5] | |
| 876 | |
| 877 shl eax,2 | |
| 878 mov dl,[esi+ecx*8+2] | |
| 879 | |
| 880 shl ebx,18 | |
| 881 and eax,00007FE0h | |
| 882 | |
| 883 shr edx,3 | |
| 884 and ebx,07FE00000h | |
| 885 | |
| 886 and edx,001F001Fh | |
| 887 add eax,ebx | |
| 888 | |
| 889 add eax,edx | |
| 890 inc ecx | |
| 891 | |
| 892 jnz .L5 | |
| 893 | |
| 894 mov [edi+ecx*4-4],eax | |
| 895 | |
| 896 ; tail | |
| 897 pop ecx | |
| 898 and ecx,BYTE 1 | |
| 899 jz .L7 | |
| 900 mov ah,[esi+0] ; blue | |
| 901 mov al,[esi+1] ; green | |
| 902 mov bl,[esi+2] ; red | |
| 903 shr ah,3 | |
| 904 and al,11111000b | |
| 905 shl eax,2 | |
| 906 shr bl,3 | |
| 907 add al,bl | |
| 908 mov [edi+0],al | |
| 909 mov [edi+1],ah | |
| 910 add esi,BYTE 4 | |
| 911 add edi,BYTE 2 | |
| 912 | |
| 913 .L7 | |
| 914 jmp _x86return | |
| 915 | |
| 916 | |
| 917 | |
| 918 | |
| 919 | |
| 920 ;; FROM 32 BIT RGB to 8 BIT RGB (rrrgggbbb) | |
| 921 ;; This routine writes FOUR pixels at once (dword) and then, if they exist | |
| 922 ;; the trailing three pixels | |
| 923 _ConvertX86p32_8RGB332: | |
| 924 | |
| 925 | |
| 926 .L_ALIGNED | |
| 927 push ecx | |
| 928 | |
| 929 shr ecx,2 ; We will draw 4 pixels at once | |
| 930 jnz .L1 | |
| 931 | |
| 932 jmp .L2 ; short jump out of range :( | |
| 933 | |
| 934 .L1: | |
| 935 mov eax,[esi] ; first pair of pixels | |
| 936 mov edx,[esi+4] | |
| 937 | |
| 938 shr dl,6 | |
| 939 mov ebx,eax | |
| 940 | |
| 941 shr al,6 | |
| 942 and ah,0e0h | |
| 943 | |
| 944 shr ebx,16 | |
| 945 and dh,0e0h | |
| 946 | |
| 947 shr ah,3 | |
| 948 and bl,0e0h | |
| 949 | |
| 950 shr dh,3 | |
| 951 | |
| 952 or al,bl | |
| 953 | |
| 954 mov ebx,edx | |
| 955 or al,ah | |
| 956 | |
| 957 shr ebx,16 | |
| 958 or dl,dh | |
| 959 | |
| 960 and bl,0e0h | |
| 961 | |
| 962 or dl,bl | |
| 963 | |
| 964 mov ah,dl | |
| 965 | |
| 966 | |
| 967 | |
| 968 mov ebx,[esi+8] ; second pair of pixels | |
| 969 | |
| 970 mov edx,ebx | |
| 971 and bh,0e0h | |
| 972 | |
| 973 shr bl,6 | |
| 974 and edx,0e00000h | |
| 975 | |
| 976 shr edx,16 | |
| 977 | |
| 978 shr bh,3 | |
| 979 | |
| 980 ror eax,16 | |
| 981 or bl,dl | |
| 982 | |
| 983 mov edx,[esi+12] | |
| 984 or bl,bh | |
| 985 | |
| 986 mov al,bl | |
| 987 | |
| 988 mov ebx,edx | |
| 989 and dh,0e0h | |
| 990 | |
| 991 shr dl,6 | |
| 992 and ebx,0e00000h | |
| 993 | |
| 994 shr dh,3 | |
| 995 mov ah,dl | |
| 996 | |
| 997 shr ebx,16 | |
| 998 or ah,dh | |
| 999 | |
| 1000 or ah,bl | |
| 1001 | |
| 1002 rol eax,16 | |
| 1003 add esi,BYTE 16 | |
| 1004 | |
| 1005 mov [edi],eax | |
| 1006 add edi,BYTE 4 | |
| 1007 | |
| 1008 dec ecx | |
| 1009 jz .L2 ; L1 out of range for short jump :( | |
| 1010 | |
| 1011 jmp .L1 | |
| 1012 .L2: | |
| 1013 | |
| 1014 pop ecx | |
| 1015 and ecx,BYTE 3 ; mask out number of pixels to draw | |
| 1016 | |
| 1017 jz .L4 ; Nothing to do anymore | |
| 1018 | |
| 1019 .L3: | |
| 1020 mov eax,[esi] ; single pixel conversion for trailing pixels | |
| 1021 | |
| 1022 mov ebx,eax | |
| 1023 | |
| 1024 shr al,6 | |
| 1025 and ah,0e0h | |
| 1026 | |
| 1027 shr ebx,16 | |
| 1028 | |
| 1029 shr ah,3 | |
| 1030 and bl,0e0h | |
| 1031 | |
| 1032 or al,ah | |
| 1033 or al,bl | |
| 1034 | |
| 1035 mov [edi],al | |
| 1036 | |
| 1037 inc edi | |
| 1038 add esi,BYTE 4 | |
| 1039 | |
| 1040 dec ecx | |
| 1041 jnz .L3 | |
| 1042 | |
| 1043 .L4: | |
| 1044 jmp _x86return |