Mercurial > sdl-ios-xcode
annotate src/hermes/x86p_32.asm @ 3943:1d9cd0ff67cc SDL-1.2
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| author | Patrice Mandin <patmandin@gmail.com> |
|---|---|
| date | Sat, 26 May 2007 20:12:58 +0000 |
| parents | eb4d9d99849b |
| children | 180fa05e98e2 |
| 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 BITS 32 | |
| 13 | |
|
1873
eb4d9d99849b
Renamed, per Mike's comment on bug #157
Sam Lantinga <slouken@libsdl.org>
parents:
1871
diff
changeset
|
14 %include "common.inc" |
| 1871 | 15 |
| 16 SDL_FUNC _ConvertX86p32_32BGR888 | |
| 17 SDL_FUNC _ConvertX86p32_32RGBA888 | |
| 18 SDL_FUNC _ConvertX86p32_32BGRA888 | |
| 19 SDL_FUNC _ConvertX86p32_24RGB888 | |
| 20 SDL_FUNC _ConvertX86p32_24BGR888 | |
| 21 SDL_FUNC _ConvertX86p32_16RGB565 | |
| 22 SDL_FUNC _ConvertX86p32_16BGR565 | |
| 23 SDL_FUNC _ConvertX86p32_16RGB555 | |
| 24 SDL_FUNC _ConvertX86p32_16BGR555 | |
| 25 SDL_FUNC _ConvertX86p32_8RGB332 | |
| 0 | 26 |
| 27 EXTERN _x86return | |
|
1166
da33b7e6d181
Date: Tue, 1 Nov 2005 20:25:10 +0100
Sam Lantinga <slouken@libsdl.org>
parents:
0
diff
changeset
|
28 |
| 0 | 29 SECTION .text |
| 30 | |
| 31 ;; _Convert_* | |
| 32 ;; Paramters: | |
| 33 ;; ESI = source | |
| 34 ;; EDI = dest | |
| 35 ;; ECX = amount (NOT 0!!! (the _ConvertX86 routine checks for that though)) | |
| 36 ;; Destroys: | |
| 37 ;; EAX, EBX, EDX | |
| 38 | |
| 39 | |
| 40 _ConvertX86p32_32BGR888: | |
| 41 | |
| 42 ; check short | |
| 43 cmp ecx,BYTE 32 | |
| 44 ja .L3 | |
| 45 | |
| 46 .L1 ; short loop | |
| 47 mov edx,[esi] | |
| 48 bswap edx | |
| 49 ror edx,8 | |
| 50 mov [edi],edx | |
| 51 add esi,BYTE 4 | |
| 52 add edi,BYTE 4 | |
| 53 dec ecx | |
| 54 jnz .L1 | |
| 55 .L2 | |
| 56 jmp _x86return | |
| 57 | |
| 58 .L3 ; save ebp | |
| 59 push ebp | |
| 60 | |
| 61 ; unroll four times | |
| 62 mov ebp,ecx | |
| 63 shr ebp,2 | |
| 64 | |
| 65 ; save count | |
| 66 push ecx | |
| 67 | |
| 68 .L4 mov eax,[esi] | |
| 69 mov ebx,[esi+4] | |
| 70 | |
| 71 bswap eax | |
| 72 | |
| 73 bswap ebx | |
| 74 | |
| 75 ror eax,8 | |
| 76 mov ecx,[esi+8] | |
| 77 | |
| 78 ror ebx,8 | |
| 79 mov edx,[esi+12] | |
| 80 | |
| 81 bswap ecx | |
| 82 | |
| 83 bswap edx | |
| 84 | |
| 85 ror ecx,8 | |
| 86 mov [edi+0],eax | |
| 87 | |
| 88 ror edx,8 | |
| 89 mov [edi+4],ebx | |
| 90 | |
| 91 mov [edi+8],ecx | |
| 92 mov [edi+12],edx | |
| 93 | |
| 94 add esi,BYTE 16 | |
| 95 add edi,BYTE 16 | |
| 96 | |
| 97 dec ebp | |
| 98 jnz .L4 | |
| 99 | |
| 100 ; check tail | |
| 101 pop ecx | |
| 102 and ecx,BYTE 11b | |
| 103 jz .L6 | |
| 104 | |
| 105 .L5 ; tail loop | |
| 106 mov edx,[esi] | |
| 107 bswap edx | |
| 108 ror edx,8 | |
| 109 mov [edi],edx | |
| 110 add esi,BYTE 4 | |
| 111 add edi,BYTE 4 | |
| 112 dec ecx | |
| 113 jnz .L5 | |
| 114 | |
| 115 .L6 pop ebp | |
| 116 jmp _x86return | |
| 117 | |
| 118 | |
| 119 | |
| 120 | |
| 121 _ConvertX86p32_32RGBA888: | |
| 122 | |
| 123 ; check short | |
| 124 cmp ecx,BYTE 32 | |
| 125 ja .L3 | |
| 126 | |
| 127 .L1 ; short loop | |
| 128 mov edx,[esi] | |
| 129 rol edx,8 | |
| 130 mov [edi],edx | |
| 131 add esi,BYTE 4 | |
| 132 add edi,BYTE 4 | |
| 133 dec ecx | |
| 134 jnz .L1 | |
| 135 .L2 | |
| 136 jmp _x86return | |
| 137 | |
| 138 .L3 ; save ebp | |
| 139 push ebp | |
| 140 | |
| 141 ; unroll four times | |
| 142 mov ebp,ecx | |
| 143 shr ebp,2 | |
| 144 | |
| 145 ; save count | |
| 146 push ecx | |
| 147 | |
| 148 .L4 mov eax,[esi] | |
| 149 mov ebx,[esi+4] | |
| 150 | |
| 151 rol eax,8 | |
| 152 mov ecx,[esi+8] | |
| 153 | |
| 154 rol ebx,8 | |
| 155 mov edx,[esi+12] | |
| 156 | |
| 157 rol ecx,8 | |
| 158 mov [edi+0],eax | |
| 159 | |
| 160 rol edx,8 | |
| 161 mov [edi+4],ebx | |
| 162 | |
| 163 mov [edi+8],ecx | |
| 164 mov [edi+12],edx | |
| 165 | |
| 166 add esi,BYTE 16 | |
| 167 add edi,BYTE 16 | |
| 168 | |
| 169 dec ebp | |
| 170 jnz .L4 | |
| 171 | |
| 172 ; check tail | |
| 173 pop ecx | |
| 174 and ecx,BYTE 11b | |
| 175 jz .L6 | |
| 176 | |
| 177 .L5 ; tail loop | |
| 178 mov edx,[esi] | |
| 179 rol edx,8 | |
| 180 mov [edi],edx | |
| 181 add esi,BYTE 4 | |
| 182 add edi,BYTE 4 | |
| 183 dec ecx | |
| 184 jnz .L5 | |
| 185 | |
| 186 .L6 pop ebp | |
| 187 jmp _x86return | |
| 188 | |
| 189 | |
| 190 | |
| 191 | |
| 192 _ConvertX86p32_32BGRA888: | |
| 193 | |
| 194 ; check short | |
| 195 cmp ecx,BYTE 32 | |
| 196 ja .L3 | |
| 197 | |
| 198 .L1 ; short loop | |
| 199 mov edx,[esi] | |
| 200 bswap edx | |
| 201 mov [edi],edx | |
| 202 add esi,BYTE 4 | |
| 203 add edi,BYTE 4 | |
| 204 dec ecx | |
| 205 jnz .L1 | |
| 206 .L2 | |
| 207 jmp _x86return | |
| 208 | |
| 209 .L3 ; save ebp | |
| 210 push ebp | |
| 211 | |
| 212 ; unroll four times | |
| 213 mov ebp,ecx | |
| 214 shr ebp,2 | |
| 215 | |
| 216 ; save count | |
| 217 push ecx | |
| 218 | |
| 219 .L4 mov eax,[esi] | |
| 220 mov ebx,[esi+4] | |
| 221 | |
| 222 mov ecx,[esi+8] | |
| 223 mov edx,[esi+12] | |
| 224 | |
| 225 bswap eax | |
| 226 | |
| 227 bswap ebx | |
| 228 | |
| 229 bswap ecx | |
| 230 | |
| 231 bswap edx | |
| 232 | |
| 233 mov [edi+0],eax | |
| 234 mov [edi+4],ebx | |
| 235 | |
| 236 mov [edi+8],ecx | |
| 237 mov [edi+12],edx | |
| 238 | |
| 239 add esi,BYTE 16 | |
| 240 add edi,BYTE 16 | |
| 241 | |
| 242 dec ebp | |
| 243 jnz .L4 | |
| 244 | |
| 245 ; check tail | |
| 246 pop ecx | |
| 247 and ecx,BYTE 11b | |
| 248 jz .L6 | |
| 249 | |
| 250 .L5 ; tail loop | |
| 251 mov edx,[esi] | |
| 252 bswap edx | |
| 253 mov [edi],edx | |
| 254 add esi,BYTE 4 | |
| 255 add edi,BYTE 4 | |
| 256 dec ecx | |
| 257 jnz .L5 | |
| 258 | |
| 259 .L6 pop ebp | |
| 260 jmp _x86return | |
| 261 | |
| 262 | |
| 263 | |
| 264 | |
| 265 ;; 32 bit RGB 888 to 24 BIT RGB 888 | |
| 266 | |
| 267 _ConvertX86p32_24RGB888: | |
| 268 | |
| 269 ; check short | |
| 270 cmp ecx,BYTE 32 | |
| 271 ja .L3 | |
| 272 | |
| 273 .L1 ; short loop | |
| 274 mov al,[esi] | |
| 275 mov bl,[esi+1] | |
| 276 mov dl,[esi+2] | |
| 277 mov [edi],al | |
| 278 mov [edi+1],bl | |
| 279 mov [edi+2],dl | |
| 280 add esi,BYTE 4 | |
| 281 add edi,BYTE 3 | |
| 282 dec ecx | |
| 283 jnz .L1 | |
| 284 .L2 | |
| 285 jmp _x86return | |
| 286 | |
| 287 .L3 ; head | |
| 288 mov edx,edi | |
| 289 and edx,BYTE 11b | |
| 290 jz .L4 | |
| 291 mov al,[esi] | |
| 292 mov bl,[esi+1] | |
| 293 mov dl,[esi+2] | |
| 294 mov [edi],al | |
| 295 mov [edi+1],bl | |
| 296 mov [edi+2],dl | |
| 297 add esi,BYTE 4 | |
| 298 add edi,BYTE 3 | |
| 299 dec ecx | |
| 300 jmp SHORT .L3 | |
| 301 | |
| 302 .L4 ; unroll 4 times | |
| 303 push ebp | |
| 304 mov ebp,ecx | |
| 305 shr ebp,2 | |
| 306 | |
| 307 ; save count | |
| 308 push ecx | |
| 309 | |
| 310 .L5 mov eax,[esi] ; first dword eax = [A][R][G][B] | |
| 311 mov ebx,[esi+4] ; second dword ebx = [a][r][g][b] | |
| 312 | |
| 313 shl eax,8 ; eax = [R][G][B][.] | |
| 314 mov ecx,[esi+12] ; third dword ecx = [a][r][g][b] | |
| 315 | |
| 316 shl ebx,8 ; ebx = [r][g][b][.] | |
| 317 mov al,[esi+4] ; eax = [R][G][B][b] | |
| 318 | |
| 319 ror eax,8 ; eax = [b][R][G][B] (done) | |
| 320 mov bh,[esi+8+1] ; ebx = [r][g][G][.] | |
| 321 | |
| 322 mov [edi],eax | |
| 323 add edi,BYTE 3*4 | |
| 324 | |
| 325 shl ecx,8 ; ecx = [r][g][b][.] | |
| 326 mov bl,[esi+8+0] ; ebx = [r][g][G][B] | |
| 327 | |
| 328 rol ebx,16 ; ebx = [G][B][r][g] (done) | |
| 329 mov cl,[esi+8+2] ; ecx = [r][g][b][R] (done) | |
| 330 | |
| 331 mov [edi+4-3*4],ebx | |
| 332 add esi,BYTE 4*4 | |
| 333 | |
| 334 mov [edi+8-3*4],ecx | |
| 335 dec ebp | |
| 336 | |
| 337 jnz .L5 | |
| 338 | |
| 339 ; check tail | |
| 340 pop ecx | |
| 341 and ecx,BYTE 11b | |
| 342 jz .L7 | |
| 343 | |
| 344 .L6 ; tail loop | |
| 345 mov al,[esi] | |
| 346 mov bl,[esi+1] | |
| 347 mov dl,[esi+2] | |
| 348 mov [edi],al | |
| 349 mov [edi+1],bl | |
| 350 mov [edi+2],dl | |
| 351 add esi,BYTE 4 | |
| 352 add edi,BYTE 3 | |
| 353 dec ecx | |
| 354 jnz .L6 | |
| 355 | |
| 356 .L7 pop ebp | |
| 357 jmp _x86return | |
| 358 | |
| 359 | |
| 360 | |
| 361 | |
| 362 ;; 32 bit RGB 888 to 24 bit BGR 888 | |
| 363 | |
| 364 _ConvertX86p32_24BGR888: | |
| 365 | |
| 366 ; check short | |
| 367 cmp ecx,BYTE 32 | |
| 368 ja .L3 | |
| 369 | |
| 370 | |
| 371 .L1 ; short loop | |
| 372 mov dl,[esi] | |
| 373 mov bl,[esi+1] | |
| 374 mov al,[esi+2] | |
| 375 mov [edi],al | |
| 376 mov [edi+1],bl | |
| 377 mov [edi+2],dl | |
| 378 add esi,BYTE 4 | |
| 379 add edi,BYTE 3 | |
| 380 dec ecx | |
| 381 jnz .L1 | |
| 382 .L2 | |
| 383 jmp _x86return | |
| 384 | |
| 385 .L3 ; head | |
| 386 mov edx,edi | |
| 387 and edx,BYTE 11b | |
| 388 jz .L4 | |
| 389 mov dl,[esi] | |
| 390 mov bl,[esi+1] | |
| 391 mov al,[esi+2] | |
| 392 mov [edi],al | |
| 393 mov [edi+1],bl | |
| 394 mov [edi+2],dl | |
| 395 add esi,BYTE 4 | |
| 396 add edi,BYTE 3 | |
| 397 dec ecx | |
| 398 jmp SHORT .L3 | |
| 399 | |
| 400 .L4 ; unroll 4 times | |
| 401 push ebp | |
| 402 mov ebp,ecx | |
| 403 shr ebp,2 | |
| 404 | |
| 405 ; save count | |
| 406 push ecx | |
| 407 | |
| 408 .L5 | |
| 409 mov eax,[esi] ; first dword eax = [A][R][G][B] | |
| 410 mov ebx,[esi+4] ; second dword ebx = [a][r][g][b] | |
| 411 | |
| 412 bswap eax ; eax = [B][G][R][A] | |
| 413 | |
| 414 bswap ebx ; ebx = [b][g][r][a] | |
| 415 | |
| 416 mov al,[esi+4+2] ; eax = [B][G][R][r] | |
| 417 mov bh,[esi+4+4+1] ; ebx = [b][g][G][a] | |
| 418 | |
| 419 ror eax,8 ; eax = [r][B][G][R] (done) | |
| 420 mov bl,[esi+4+4+2] ; ebx = [b][g][G][R] | |
| 421 | |
| 422 ror ebx,16 ; ebx = [G][R][b][g] (done) | |
| 423 mov [edi],eax | |
| 424 | |
| 425 mov [edi+4],ebx | |
| 426 mov ecx,[esi+12] ; third dword ecx = [a][r][g][b] | |
| 427 | |
| 428 bswap ecx ; ecx = [b][g][r][a] | |
| 429 | |
| 430 mov cl,[esi+8] ; ecx = [b][g][r][B] (done) | |
| 431 add esi,BYTE 4*4 | |
| 432 | |
| 433 mov [edi+8],ecx | |
| 434 add edi,BYTE 3*4 | |
| 435 | |
| 436 dec ebp | |
| 437 jnz .L5 | |
| 438 | |
| 439 ; check tail | |
| 440 pop ecx | |
| 441 and ecx,BYTE 11b | |
| 442 jz .L7 | |
| 443 | |
| 444 .L6 ; tail loop | |
| 445 mov dl,[esi] | |
| 446 mov bl,[esi+1] | |
| 447 mov al,[esi+2] | |
| 448 mov [edi],al | |
| 449 mov [edi+1],bl | |
| 450 mov [edi+2],dl | |
| 451 add esi,BYTE 4 | |
| 452 add edi,BYTE 3 | |
| 453 dec ecx | |
| 454 jnz .L6 | |
| 455 | |
| 456 .L7 | |
| 457 pop ebp | |
| 458 jmp _x86return | |
| 459 | |
| 460 | |
| 461 | |
| 462 | |
| 463 ;; 32 bit RGB 888 to 16 BIT RGB 565 | |
| 464 | |
| 465 _ConvertX86p32_16RGB565: | |
| 466 ; check short | |
| 467 cmp ecx,BYTE 16 | |
| 468 ja .L3 | |
| 469 | |
| 470 .L1 ; short loop | |
| 471 mov bl,[esi+0] ; blue | |
| 472 mov al,[esi+1] ; green | |
| 473 mov ah,[esi+2] ; red | |
| 474 shr ah,3 | |
| 475 and al,11111100b | |
| 476 shl eax,3 | |
| 477 shr bl,3 | |
| 478 add al,bl | |
| 479 mov [edi+0],al | |
| 480 mov [edi+1],ah | |
| 481 add esi,BYTE 4 | |
| 482 add edi,BYTE 2 | |
| 483 dec ecx | |
| 484 jnz .L1 | |
| 485 | |
| 486 .L2: ; End of short loop | |
| 487 jmp _x86return | |
| 488 | |
| 489 | |
| 490 .L3 ; head | |
| 491 mov ebx,edi | |
| 492 and ebx,BYTE 11b | |
| 493 jz .L4 | |
| 494 | |
| 495 mov bl,[esi+0] ; blue | |
| 496 mov al,[esi+1] ; green | |
| 497 mov ah,[esi+2] ; red | |
| 498 shr ah,3 | |
| 499 and al,11111100b | |
| 500 shl eax,3 | |
| 501 shr bl,3 | |
| 502 add al,bl | |
| 503 mov [edi+0],al | |
| 504 mov [edi+1],ah | |
| 505 add esi,BYTE 4 | |
| 506 add edi,BYTE 2 | |
| 507 dec ecx | |
| 508 | |
| 509 .L4: | |
| 510 ; save count | |
| 511 push ecx | |
| 512 | |
| 513 ; unroll twice | |
| 514 shr ecx,1 | |
| 515 | |
| 516 ; point arrays to end | |
| 517 lea esi,[esi+ecx*8] | |
| 518 lea edi,[edi+ecx*4] | |
| 519 | |
| 520 ; negative counter | |
| 521 neg ecx | |
| 522 jmp SHORT .L6 | |
| 523 | |
| 524 .L5: | |
| 525 mov [edi+ecx*4-4],eax | |
| 526 .L6: | |
| 527 mov eax,[esi+ecx*8] | |
| 528 | |
| 529 shr ah,2 | |
| 530 mov ebx,[esi+ecx*8+4] | |
| 531 | |
| 532 shr eax,3 | |
| 533 mov edx,[esi+ecx*8+4] | |
| 534 | |
| 535 shr bh,2 | |
| 536 mov dl,[esi+ecx*8+2] | |
| 537 | |
| 538 shl ebx,13 | |
| 539 and eax,000007FFh | |
| 540 | |
| 541 shl edx,8 | |
| 542 and ebx,07FF0000h | |
| 543 | |
| 544 and edx,0F800F800h | |
| 545 add eax,ebx | |
| 546 | |
| 547 add eax,edx | |
| 548 inc ecx | |
| 549 | |
| 550 jnz .L5 | |
| 551 | |
| 552 mov [edi+ecx*4-4],eax | |
| 553 | |
| 554 ; tail | |
| 555 pop ecx | |
| 556 test cl,1 | |
| 557 jz .L7 | |
| 558 | |
| 559 mov bl,[esi+0] ; blue | |
| 560 mov al,[esi+1] ; green | |
| 561 mov ah,[esi+2] ; red | |
| 562 shr ah,3 | |
| 563 and al,11111100b | |
| 564 shl eax,3 | |
| 565 shr bl,3 | |
| 566 add al,bl | |
| 567 mov [edi+0],al | |
| 568 mov [edi+1],ah | |
| 569 add esi,BYTE 4 | |
| 570 add edi,BYTE 2 | |
| 571 | |
| 572 .L7: | |
| 573 jmp _x86return | |
| 574 | |
| 575 | |
| 576 | |
| 577 | |
| 578 ;; 32 bit RGB 888 to 16 BIT BGR 565 | |
| 579 | |
| 580 _ConvertX86p32_16BGR565: | |
| 581 | |
| 582 ; check short | |
| 583 cmp ecx,BYTE 16 | |
| 584 ja .L3 | |
| 585 | |
| 586 .L1 ; short loop | |
| 587 mov ah,[esi+0] ; blue | |
| 588 mov al,[esi+1] ; green | |
| 589 mov bl,[esi+2] ; red | |
| 590 shr ah,3 | |
| 591 and al,11111100b | |
| 592 shl eax,3 | |
| 593 shr bl,3 | |
| 594 add al,bl | |
| 595 mov [edi+0],al | |
| 596 mov [edi+1],ah | |
| 597 add esi,BYTE 4 | |
| 598 add edi,BYTE 2 | |
| 599 dec ecx | |
| 600 jnz .L1 | |
| 601 .L2 | |
| 602 jmp _x86return | |
| 603 | |
| 604 .L3 ; head | |
| 605 mov ebx,edi | |
| 606 and ebx,BYTE 11b | |
| 607 jz .L4 | |
| 608 mov ah,[esi+0] ; blue | |
| 609 mov al,[esi+1] ; green | |
| 610 mov bl,[esi+2] ; red | |
| 611 shr ah,3 | |
| 612 and al,11111100b | |
| 613 shl eax,3 | |
| 614 shr bl,3 | |
| 615 add al,bl | |
| 616 mov [edi+0],al | |
| 617 mov [edi+1],ah | |
| 618 add esi,BYTE 4 | |
| 619 add edi,BYTE 2 | |
| 620 dec ecx | |
| 621 | |
| 622 .L4 ; save count | |
| 623 push ecx | |
| 624 | |
| 625 ; unroll twice | |
| 626 shr ecx,1 | |
| 627 | |
| 628 ; point arrays to end | |
| 629 lea esi,[esi+ecx*8] | |
| 630 lea edi,[edi+ecx*4] | |
| 631 | |
| 632 ; negative count | |
| 633 neg ecx | |
| 634 jmp SHORT .L6 | |
| 635 | |
| 636 .L5 | |
| 637 mov [edi+ecx*4-4],eax | |
| 638 .L6 | |
| 639 mov edx,[esi+ecx*8+4] | |
| 640 | |
| 641 mov bh,[esi+ecx*8+4] | |
| 642 mov ah,[esi+ecx*8] | |
| 643 | |
| 644 shr bh,3 | |
| 645 mov al,[esi+ecx*8+1] | |
| 646 | |
| 647 shr ah,3 | |
| 648 mov bl,[esi+ecx*8+5] | |
| 649 | |
| 650 shl eax,3 | |
| 651 mov dl,[esi+ecx*8+2] | |
| 652 | |
| 653 shl ebx,19 | |
| 654 and eax,0000FFE0h | |
| 655 | |
| 656 shr edx,3 | |
| 657 and ebx,0FFE00000h | |
| 658 | |
| 659 and edx,001F001Fh | |
| 660 add eax,ebx | |
| 661 | |
| 662 add eax,edx | |
| 663 inc ecx | |
| 664 | |
| 665 jnz .L5 | |
| 666 | |
| 667 mov [edi+ecx*4-4],eax | |
| 668 | |
| 669 ; tail | |
| 670 pop ecx | |
| 671 and ecx,BYTE 1 | |
| 672 jz .L7 | |
| 673 mov ah,[esi+0] ; blue | |
| 674 mov al,[esi+1] ; green | |
| 675 mov bl,[esi+2] ; red | |
| 676 shr ah,3 | |
| 677 and al,11111100b | |
| 678 shl eax,3 | |
| 679 shr bl,3 | |
| 680 add al,bl | |
| 681 mov [edi+0],al | |
| 682 mov [edi+1],ah | |
| 683 add esi,BYTE 4 | |
| 684 add edi,BYTE 2 | |
| 685 | |
| 686 .L7 | |
| 687 jmp _x86return | |
| 688 | |
| 689 | |
| 690 | |
| 691 | |
| 692 ;; 32 BIT RGB TO 16 BIT RGB 555 | |
| 693 | |
| 694 _ConvertX86p32_16RGB555: | |
| 695 | |
| 696 ; check short | |
| 697 cmp ecx,BYTE 16 | |
| 698 ja .L3 | |
| 699 | |
| 700 .L1 ; short loop | |
| 701 mov bl,[esi+0] ; blue | |
| 702 mov al,[esi+1] ; green | |
| 703 mov ah,[esi+2] ; red | |
| 704 shr ah,3 | |
| 705 and al,11111000b | |
| 706 shl eax,2 | |
| 707 shr bl,3 | |
| 708 add al,bl | |
| 709 mov [edi+0],al | |
| 710 mov [edi+1],ah | |
| 711 add esi,BYTE 4 | |
| 712 add edi,BYTE 2 | |
| 713 dec ecx | |
| 714 jnz .L1 | |
| 715 .L2 | |
| 716 jmp _x86return | |
| 717 | |
| 718 .L3 ; head | |
| 719 mov ebx,edi | |
| 720 and ebx,BYTE 11b | |
| 721 jz .L4 | |
| 722 mov bl,[esi+0] ; blue | |
| 723 mov al,[esi+1] ; green | |
| 724 mov ah,[esi+2] ; red | |
| 725 shr ah,3 | |
| 726 and al,11111000b | |
| 727 shl eax,2 | |
| 728 shr bl,3 | |
| 729 add al,bl | |
| 730 mov [edi+0],al | |
| 731 mov [edi+1],ah | |
| 732 add esi,BYTE 4 | |
| 733 add edi,BYTE 2 | |
| 734 dec ecx | |
| 735 | |
| 736 .L4 ; save count | |
| 737 push ecx | |
| 738 | |
| 739 ; unroll twice | |
| 740 shr ecx,1 | |
| 741 | |
| 742 ; point arrays to end | |
| 743 lea esi,[esi+ecx*8] | |
| 744 lea edi,[edi+ecx*4] | |
| 745 | |
| 746 ; negative counter | |
| 747 neg ecx | |
| 748 jmp SHORT .L6 | |
| 749 | |
| 750 .L5 | |
| 751 mov [edi+ecx*4-4],eax | |
| 752 .L6 | |
| 753 mov eax,[esi+ecx*8] | |
| 754 | |
| 755 shr ah,3 | |
| 756 mov ebx,[esi+ecx*8+4] | |
| 757 | |
| 758 shr eax,3 | |
| 759 mov edx,[esi+ecx*8+4] | |
| 760 | |
| 761 shr bh,3 | |
| 762 mov dl,[esi+ecx*8+2] | |
| 763 | |
| 764 shl ebx,13 | |
| 765 and eax,000007FFh | |
| 766 | |
| 767 shl edx,7 | |
| 768 and ebx,07FF0000h | |
| 769 | |
| 770 and edx,07C007C00h | |
| 771 add eax,ebx | |
| 772 | |
| 773 add eax,edx | |
| 774 inc ecx | |
| 775 | |
| 776 jnz .L5 | |
| 777 | |
| 778 mov [edi+ecx*4-4],eax | |
| 779 | |
| 780 ; tail | |
| 781 pop ecx | |
| 782 and ecx,BYTE 1 | |
| 783 jz .L7 | |
| 784 mov bl,[esi+0] ; blue | |
| 785 mov al,[esi+1] ; green | |
| 786 mov ah,[esi+2] ; red | |
| 787 shr ah,3 | |
| 788 and al,11111000b | |
| 789 shl eax,2 | |
| 790 shr bl,3 | |
| 791 add al,bl | |
| 792 mov [edi+0],al | |
| 793 mov [edi+1],ah | |
| 794 add esi,BYTE 4 | |
| 795 add edi,BYTE 2 | |
| 796 | |
| 797 .L7 | |
| 798 jmp _x86return | |
| 799 | |
| 800 | |
| 801 | |
| 802 | |
| 803 ;; 32 BIT RGB TO 16 BIT BGR 555 | |
| 804 | |
| 805 _ConvertX86p32_16BGR555: | |
| 806 | |
| 807 ; check short | |
| 808 cmp ecx,BYTE 16 | |
| 809 ja .L3 | |
| 810 | |
| 811 | |
| 812 .L1 ; short loop | |
| 813 mov ah,[esi+0] ; blue | |
| 814 mov al,[esi+1] ; green | |
| 815 mov bl,[esi+2] ; red | |
| 816 shr ah,3 | |
| 817 and al,11111000b | |
| 818 shl eax,2 | |
| 819 shr bl,3 | |
| 820 add al,bl | |
| 821 mov [edi+0],al | |
| 822 mov [edi+1],ah | |
| 823 add esi,BYTE 4 | |
| 824 add edi,BYTE 2 | |
| 825 dec ecx | |
| 826 jnz .L1 | |
| 827 .L2 | |
| 828 jmp _x86return | |
| 829 | |
| 830 .L3 ; head | |
| 831 mov ebx,edi | |
| 832 and ebx,BYTE 11b | |
| 833 jz .L4 | |
| 834 mov ah,[esi+0] ; blue | |
| 835 mov al,[esi+1] ; green | |
| 836 mov bl,[esi+2] ; red | |
| 837 shr ah,3 | |
| 838 and al,11111000b | |
| 839 shl eax,2 | |
| 840 shr bl,3 | |
| 841 add al,bl | |
| 842 mov [edi+0],al | |
| 843 mov [edi+1],ah | |
| 844 add esi,BYTE 4 | |
| 845 add edi,BYTE 2 | |
| 846 dec ecx | |
| 847 | |
| 848 .L4 ; save count | |
| 849 push ecx | |
| 850 | |
| 851 ; unroll twice | |
| 852 shr ecx,1 | |
| 853 | |
| 854 ; point arrays to end | |
| 855 lea esi,[esi+ecx*8] | |
| 856 lea edi,[edi+ecx*4] | |
| 857 | |
| 858 ; negative counter | |
| 859 neg ecx | |
| 860 jmp SHORT .L6 | |
| 861 | |
| 862 .L5 | |
| 863 mov [edi+ecx*4-4],eax | |
| 864 .L6 | |
| 865 mov edx,[esi+ecx*8+4] | |
| 866 | |
| 867 mov bh,[esi+ecx*8+4] | |
| 868 mov ah,[esi+ecx*8] | |
| 869 | |
| 870 shr bh,3 | |
| 871 mov al,[esi+ecx*8+1] | |
| 872 | |
| 873 shr ah,3 | |
| 874 mov bl,[esi+ecx*8+5] | |
| 875 | |
| 876 shl eax,2 | |
| 877 mov dl,[esi+ecx*8+2] | |
| 878 | |
| 879 shl ebx,18 | |
| 880 and eax,00007FE0h | |
| 881 | |
| 882 shr edx,3 | |
| 883 and ebx,07FE00000h | |
| 884 | |
| 885 and edx,001F001Fh | |
| 886 add eax,ebx | |
| 887 | |
| 888 add eax,edx | |
| 889 inc ecx | |
| 890 | |
| 891 jnz .L5 | |
| 892 | |
| 893 mov [edi+ecx*4-4],eax | |
| 894 | |
| 895 ; tail | |
| 896 pop ecx | |
| 897 and ecx,BYTE 1 | |
| 898 jz .L7 | |
| 899 mov ah,[esi+0] ; blue | |
| 900 mov al,[esi+1] ; green | |
| 901 mov bl,[esi+2] ; red | |
| 902 shr ah,3 | |
| 903 and al,11111000b | |
| 904 shl eax,2 | |
| 905 shr bl,3 | |
| 906 add al,bl | |
| 907 mov [edi+0],al | |
| 908 mov [edi+1],ah | |
| 909 add esi,BYTE 4 | |
| 910 add edi,BYTE 2 | |
| 911 | |
| 912 .L7 | |
| 913 jmp _x86return | |
| 914 | |
| 915 | |
| 916 | |
| 917 | |
| 918 | |
| 919 ;; FROM 32 BIT RGB to 8 BIT RGB (rrrgggbbb) | |
| 920 ;; This routine writes FOUR pixels at once (dword) and then, if they exist | |
| 921 ;; the trailing three pixels | |
| 922 _ConvertX86p32_8RGB332: | |
| 923 | |
| 924 | |
| 925 .L_ALIGNED | |
| 926 push ecx | |
| 927 | |
| 928 shr ecx,2 ; We will draw 4 pixels at once | |
| 929 jnz .L1 | |
| 930 | |
| 931 jmp .L2 ; short jump out of range :( | |
| 932 | |
| 933 .L1: | |
| 934 mov eax,[esi] ; first pair of pixels | |
| 935 mov edx,[esi+4] | |
| 936 | |
| 937 shr dl,6 | |
| 938 mov ebx,eax | |
| 939 | |
| 940 shr al,6 | |
| 941 and ah,0e0h | |
| 942 | |
| 943 shr ebx,16 | |
| 944 and dh,0e0h | |
| 945 | |
| 946 shr ah,3 | |
| 947 and bl,0e0h | |
| 948 | |
| 949 shr dh,3 | |
| 950 | |
| 951 or al,bl | |
| 952 | |
| 953 mov ebx,edx | |
| 954 or al,ah | |
| 955 | |
| 956 shr ebx,16 | |
| 957 or dl,dh | |
| 958 | |
| 959 and bl,0e0h | |
| 960 | |
| 961 or dl,bl | |
| 962 | |
| 963 mov ah,dl | |
| 964 | |
| 965 | |
| 966 | |
| 967 mov ebx,[esi+8] ; second pair of pixels | |
| 968 | |
| 969 mov edx,ebx | |
| 970 and bh,0e0h | |
| 971 | |
| 972 shr bl,6 | |
| 973 and edx,0e00000h | |
| 974 | |
| 975 shr edx,16 | |
| 976 | |
| 977 shr bh,3 | |
| 978 | |
| 979 ror eax,16 | |
| 980 or bl,dl | |
| 981 | |
| 982 mov edx,[esi+12] | |
| 983 or bl,bh | |
| 984 | |
| 985 mov al,bl | |
| 986 | |
| 987 mov ebx,edx | |
| 988 and dh,0e0h | |
| 989 | |
| 990 shr dl,6 | |
| 991 and ebx,0e00000h | |
| 992 | |
| 993 shr dh,3 | |
| 994 mov ah,dl | |
| 995 | |
| 996 shr ebx,16 | |
| 997 or ah,dh | |
| 998 | |
| 999 or ah,bl | |
| 1000 | |
| 1001 rol eax,16 | |
| 1002 add esi,BYTE 16 | |
| 1003 | |
| 1004 mov [edi],eax | |
| 1005 add edi,BYTE 4 | |
| 1006 | |
| 1007 dec ecx | |
| 1008 jz .L2 ; L1 out of range for short jump :( | |
| 1009 | |
| 1010 jmp .L1 | |
| 1011 .L2: | |
| 1012 | |
| 1013 pop ecx | |
| 1014 and ecx,BYTE 3 ; mask out number of pixels to draw | |
| 1015 | |
| 1016 jz .L4 ; Nothing to do anymore | |
| 1017 | |
| 1018 .L3: | |
| 1019 mov eax,[esi] ; single pixel conversion for trailing pixels | |
| 1020 | |
| 1021 mov ebx,eax | |
| 1022 | |
| 1023 shr al,6 | |
| 1024 and ah,0e0h | |
| 1025 | |
| 1026 shr ebx,16 | |
| 1027 | |
| 1028 shr ah,3 | |
| 1029 and bl,0e0h | |
| 1030 | |
| 1031 or al,ah | |
| 1032 or al,bl | |
| 1033 | |
| 1034 mov [edi],al | |
| 1035 | |
| 1036 inc edi | |
| 1037 add esi,BYTE 4 | |
| 1038 | |
| 1039 dec ecx | |
| 1040 jnz .L3 | |
| 1041 | |
| 1042 .L4: | |
| 1043 jmp _x86return | |
|
1199
2d6dc7de1145
From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
1166
diff
changeset
|
1044 |
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2d6dc7de1145
From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
1166
diff
changeset
|
1045 %ifidn __OUTPUT_FORMAT__,elf |
|
2d6dc7de1145
From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
1166
diff
changeset
|
1046 section .note.GNU-stack noalloc noexec nowrite progbits |
|
2d6dc7de1145
From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
1166
diff
changeset
|
1047 %endif |