Mercurial > sdl-ios-xcode
annotate src/hermes/x86p_32.asm @ 4093:7ea10b80eda3 SDL-1.2
Fixed bugs #471 and #480
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 21 Aug 2007 06:52:33 +0000 |
| parents | 540466e900db |
| children |
| 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 | |
|
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Renamed, per Mike's comment on bug #157
Sam Lantinga <slouken@libsdl.org>
parents:
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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 SECTION .text | |
| 28 | |
| 29 ;; _Convert_* | |
| 30 ;; Paramters: | |
| 31 ;; ESI = source | |
| 32 ;; EDI = dest | |
| 33 ;; ECX = amount (NOT 0!!! (the _ConvertX86 routine checks for that though)) | |
| 34 ;; Destroys: | |
| 35 ;; EAX, EBX, EDX | |
| 36 | |
| 37 | |
| 38 _ConvertX86p32_32BGR888: | |
| 39 | |
| 40 ; check short | |
| 41 cmp ecx,BYTE 32 | |
| 42 ja .L3 | |
| 43 | |
| 44 .L1 ; short loop | |
| 45 mov edx,[esi] | |
| 46 bswap edx | |
| 47 ror edx,8 | |
| 48 mov [edi],edx | |
| 49 add esi,BYTE 4 | |
| 50 add edi,BYTE 4 | |
| 51 dec ecx | |
| 52 jnz .L1 | |
| 53 .L2 | |
|
3983
540466e900db
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Ryan C. Gordon <icculus@icculus.org>
parents:
1873
diff
changeset
|
54 retn |
| 0 | 55 |
| 56 .L3 ; save ebp | |
| 57 push ebp | |
| 58 | |
| 59 ; unroll four times | |
| 60 mov ebp,ecx | |
| 61 shr ebp,2 | |
| 62 | |
| 63 ; save count | |
| 64 push ecx | |
| 65 | |
| 66 .L4 mov eax,[esi] | |
| 67 mov ebx,[esi+4] | |
| 68 | |
| 69 bswap eax | |
| 70 | |
| 71 bswap ebx | |
| 72 | |
| 73 ror eax,8 | |
| 74 mov ecx,[esi+8] | |
| 75 | |
| 76 ror ebx,8 | |
| 77 mov edx,[esi+12] | |
| 78 | |
| 79 bswap ecx | |
| 80 | |
| 81 bswap edx | |
| 82 | |
| 83 ror ecx,8 | |
| 84 mov [edi+0],eax | |
| 85 | |
| 86 ror edx,8 | |
| 87 mov [edi+4],ebx | |
| 88 | |
| 89 mov [edi+8],ecx | |
| 90 mov [edi+12],edx | |
| 91 | |
| 92 add esi,BYTE 16 | |
| 93 add edi,BYTE 16 | |
| 94 | |
| 95 dec ebp | |
| 96 jnz .L4 | |
| 97 | |
| 98 ; check tail | |
| 99 pop ecx | |
| 100 and ecx,BYTE 11b | |
| 101 jz .L6 | |
| 102 | |
| 103 .L5 ; tail loop | |
| 104 mov edx,[esi] | |
| 105 bswap edx | |
| 106 ror edx,8 | |
| 107 mov [edi],edx | |
| 108 add esi,BYTE 4 | |
| 109 add edi,BYTE 4 | |
| 110 dec ecx | |
| 111 jnz .L5 | |
| 112 | |
| 113 .L6 pop ebp | |
|
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Ryan C. Gordon <icculus@icculus.org>
parents:
1873
diff
changeset
|
114 retn |
| 0 | 115 |
| 116 | |
| 117 | |
| 118 | |
| 119 _ConvertX86p32_32RGBA888: | |
| 120 | |
| 121 ; check short | |
| 122 cmp ecx,BYTE 32 | |
| 123 ja .L3 | |
| 124 | |
| 125 .L1 ; short loop | |
| 126 mov edx,[esi] | |
| 127 rol edx,8 | |
| 128 mov [edi],edx | |
| 129 add esi,BYTE 4 | |
| 130 add edi,BYTE 4 | |
| 131 dec ecx | |
| 132 jnz .L1 | |
| 133 .L2 | |
|
3983
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Ryan C. Gordon <icculus@icculus.org>
parents:
1873
diff
changeset
|
134 retn |
| 0 | 135 |
| 136 .L3 ; save ebp | |
| 137 push ebp | |
| 138 | |
| 139 ; unroll four times | |
| 140 mov ebp,ecx | |
| 141 shr ebp,2 | |
| 142 | |
| 143 ; save count | |
| 144 push ecx | |
| 145 | |
| 146 .L4 mov eax,[esi] | |
| 147 mov ebx,[esi+4] | |
| 148 | |
| 149 rol eax,8 | |
| 150 mov ecx,[esi+8] | |
| 151 | |
| 152 rol ebx,8 | |
| 153 mov edx,[esi+12] | |
| 154 | |
| 155 rol ecx,8 | |
| 156 mov [edi+0],eax | |
| 157 | |
| 158 rol edx,8 | |
| 159 mov [edi+4],ebx | |
| 160 | |
| 161 mov [edi+8],ecx | |
| 162 mov [edi+12],edx | |
| 163 | |
| 164 add esi,BYTE 16 | |
| 165 add edi,BYTE 16 | |
| 166 | |
| 167 dec ebp | |
| 168 jnz .L4 | |
| 169 | |
| 170 ; check tail | |
| 171 pop ecx | |
| 172 and ecx,BYTE 11b | |
| 173 jz .L6 | |
| 174 | |
| 175 .L5 ; tail loop | |
| 176 mov edx,[esi] | |
| 177 rol edx,8 | |
| 178 mov [edi],edx | |
| 179 add esi,BYTE 4 | |
| 180 add edi,BYTE 4 | |
| 181 dec ecx | |
| 182 jnz .L5 | |
| 183 | |
| 184 .L6 pop ebp | |
|
3983
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Removed textrels from hermes code.
Ryan C. Gordon <icculus@icculus.org>
parents:
1873
diff
changeset
|
185 retn |
| 0 | 186 |
| 187 | |
| 188 | |
| 189 | |
| 190 _ConvertX86p32_32BGRA888: | |
| 191 | |
| 192 ; check short | |
| 193 cmp ecx,BYTE 32 | |
| 194 ja .L3 | |
| 195 | |
| 196 .L1 ; short loop | |
| 197 mov edx,[esi] | |
| 198 bswap edx | |
| 199 mov [edi],edx | |
| 200 add esi,BYTE 4 | |
| 201 add edi,BYTE 4 | |
| 202 dec ecx | |
| 203 jnz .L1 | |
| 204 .L2 | |
|
3983
540466e900db
Removed textrels from hermes code.
Ryan C. Gordon <icculus@icculus.org>
parents:
1873
diff
changeset
|
205 retn |
| 0 | 206 |
| 207 .L3 ; save ebp | |
| 208 push ebp | |
| 209 | |
| 210 ; unroll four times | |
| 211 mov ebp,ecx | |
| 212 shr ebp,2 | |
| 213 | |
| 214 ; save count | |
| 215 push ecx | |
| 216 | |
| 217 .L4 mov eax,[esi] | |
| 218 mov ebx,[esi+4] | |
| 219 | |
| 220 mov ecx,[esi+8] | |
| 221 mov edx,[esi+12] | |
| 222 | |
| 223 bswap eax | |
| 224 | |
| 225 bswap ebx | |
| 226 | |
| 227 bswap ecx | |
| 228 | |
| 229 bswap edx | |
| 230 | |
| 231 mov [edi+0],eax | |
| 232 mov [edi+4],ebx | |
| 233 | |
| 234 mov [edi+8],ecx | |
| 235 mov [edi+12],edx | |
| 236 | |
| 237 add esi,BYTE 16 | |
| 238 add edi,BYTE 16 | |
| 239 | |
| 240 dec ebp | |
| 241 jnz .L4 | |
| 242 | |
| 243 ; check tail | |
| 244 pop ecx | |
| 245 and ecx,BYTE 11b | |
| 246 jz .L6 | |
| 247 | |
| 248 .L5 ; tail loop | |
| 249 mov edx,[esi] | |
| 250 bswap edx | |
| 251 mov [edi],edx | |
| 252 add esi,BYTE 4 | |
| 253 add edi,BYTE 4 | |
| 254 dec ecx | |
| 255 jnz .L5 | |
| 256 | |
| 257 .L6 pop ebp | |
|
3983
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Ryan C. Gordon <icculus@icculus.org>
parents:
1873
diff
changeset
|
258 retn |
| 0 | 259 |
| 260 | |
| 261 | |
| 262 | |
| 263 ;; 32 bit RGB 888 to 24 BIT RGB 888 | |
| 264 | |
| 265 _ConvertX86p32_24RGB888: | |
| 266 | |
| 267 ; check short | |
| 268 cmp ecx,BYTE 32 | |
| 269 ja .L3 | |
| 270 | |
| 271 .L1 ; short loop | |
| 272 mov al,[esi] | |
| 273 mov bl,[esi+1] | |
| 274 mov dl,[esi+2] | |
| 275 mov [edi],al | |
| 276 mov [edi+1],bl | |
| 277 mov [edi+2],dl | |
| 278 add esi,BYTE 4 | |
| 279 add edi,BYTE 3 | |
| 280 dec ecx | |
| 281 jnz .L1 | |
| 282 .L2 | |
|
3983
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Removed textrels from hermes code.
Ryan C. Gordon <icculus@icculus.org>
parents:
1873
diff
changeset
|
283 retn |
| 0 | 284 |
| 285 .L3 ; head | |
| 286 mov edx,edi | |
| 287 and edx,BYTE 11b | |
| 288 jz .L4 | |
| 289 mov al,[esi] | |
| 290 mov bl,[esi+1] | |
| 291 mov dl,[esi+2] | |
| 292 mov [edi],al | |
| 293 mov [edi+1],bl | |
| 294 mov [edi+2],dl | |
| 295 add esi,BYTE 4 | |
| 296 add edi,BYTE 3 | |
| 297 dec ecx | |
| 298 jmp SHORT .L3 | |
| 299 | |
| 300 .L4 ; unroll 4 times | |
| 301 push ebp | |
| 302 mov ebp,ecx | |
| 303 shr ebp,2 | |
| 304 | |
| 305 ; save count | |
| 306 push ecx | |
| 307 | |
| 308 .L5 mov eax,[esi] ; first dword eax = [A][R][G][B] | |
| 309 mov ebx,[esi+4] ; second dword ebx = [a][r][g][b] | |
| 310 | |
| 311 shl eax,8 ; eax = [R][G][B][.] | |
| 312 mov ecx,[esi+12] ; third dword ecx = [a][r][g][b] | |
| 313 | |
| 314 shl ebx,8 ; ebx = [r][g][b][.] | |
| 315 mov al,[esi+4] ; eax = [R][G][B][b] | |
| 316 | |
| 317 ror eax,8 ; eax = [b][R][G][B] (done) | |
| 318 mov bh,[esi+8+1] ; ebx = [r][g][G][.] | |
| 319 | |
| 320 mov [edi],eax | |
| 321 add edi,BYTE 3*4 | |
| 322 | |
| 323 shl ecx,8 ; ecx = [r][g][b][.] | |
| 324 mov bl,[esi+8+0] ; ebx = [r][g][G][B] | |
| 325 | |
| 326 rol ebx,16 ; ebx = [G][B][r][g] (done) | |
| 327 mov cl,[esi+8+2] ; ecx = [r][g][b][R] (done) | |
| 328 | |
| 329 mov [edi+4-3*4],ebx | |
| 330 add esi,BYTE 4*4 | |
| 331 | |
| 332 mov [edi+8-3*4],ecx | |
| 333 dec ebp | |
| 334 | |
| 335 jnz .L5 | |
| 336 | |
| 337 ; check tail | |
| 338 pop ecx | |
| 339 and ecx,BYTE 11b | |
| 340 jz .L7 | |
| 341 | |
| 342 .L6 ; tail loop | |
| 343 mov al,[esi] | |
| 344 mov bl,[esi+1] | |
| 345 mov dl,[esi+2] | |
| 346 mov [edi],al | |
| 347 mov [edi+1],bl | |
| 348 mov [edi+2],dl | |
| 349 add esi,BYTE 4 | |
| 350 add edi,BYTE 3 | |
| 351 dec ecx | |
| 352 jnz .L6 | |
| 353 | |
| 354 .L7 pop ebp | |
|
3983
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Removed textrels from hermes code.
Ryan C. Gordon <icculus@icculus.org>
parents:
1873
diff
changeset
|
355 retn |
| 0 | 356 |
| 357 | |
| 358 | |
| 359 | |
| 360 ;; 32 bit RGB 888 to 24 bit BGR 888 | |
| 361 | |
| 362 _ConvertX86p32_24BGR888: | |
| 363 | |
| 364 ; check short | |
| 365 cmp ecx,BYTE 32 | |
| 366 ja .L3 | |
| 367 | |
| 368 | |
| 369 .L1 ; short loop | |
| 370 mov dl,[esi] | |
| 371 mov bl,[esi+1] | |
| 372 mov al,[esi+2] | |
| 373 mov [edi],al | |
| 374 mov [edi+1],bl | |
| 375 mov [edi+2],dl | |
| 376 add esi,BYTE 4 | |
| 377 add edi,BYTE 3 | |
| 378 dec ecx | |
| 379 jnz .L1 | |
| 380 .L2 | |
|
3983
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Ryan C. Gordon <icculus@icculus.org>
parents:
1873
diff
changeset
|
381 retn |
| 0 | 382 |
| 383 .L3 ; head | |
| 384 mov edx,edi | |
| 385 and edx,BYTE 11b | |
| 386 jz .L4 | |
| 387 mov dl,[esi] | |
| 388 mov bl,[esi+1] | |
| 389 mov al,[esi+2] | |
| 390 mov [edi],al | |
| 391 mov [edi+1],bl | |
| 392 mov [edi+2],dl | |
| 393 add esi,BYTE 4 | |
| 394 add edi,BYTE 3 | |
| 395 dec ecx | |
| 396 jmp SHORT .L3 | |
| 397 | |
| 398 .L4 ; unroll 4 times | |
| 399 push ebp | |
| 400 mov ebp,ecx | |
| 401 shr ebp,2 | |
| 402 | |
| 403 ; save count | |
| 404 push ecx | |
| 405 | |
| 406 .L5 | |
| 407 mov eax,[esi] ; first dword eax = [A][R][G][B] | |
| 408 mov ebx,[esi+4] ; second dword ebx = [a][r][g][b] | |
| 409 | |
| 410 bswap eax ; eax = [B][G][R][A] | |
| 411 | |
| 412 bswap ebx ; ebx = [b][g][r][a] | |
| 413 | |
| 414 mov al,[esi+4+2] ; eax = [B][G][R][r] | |
| 415 mov bh,[esi+4+4+1] ; ebx = [b][g][G][a] | |
| 416 | |
| 417 ror eax,8 ; eax = [r][B][G][R] (done) | |
| 418 mov bl,[esi+4+4+2] ; ebx = [b][g][G][R] | |
| 419 | |
| 420 ror ebx,16 ; ebx = [G][R][b][g] (done) | |
| 421 mov [edi],eax | |
| 422 | |
| 423 mov [edi+4],ebx | |
| 424 mov ecx,[esi+12] ; third dword ecx = [a][r][g][b] | |
| 425 | |
| 426 bswap ecx ; ecx = [b][g][r][a] | |
| 427 | |
| 428 mov cl,[esi+8] ; ecx = [b][g][r][B] (done) | |
| 429 add esi,BYTE 4*4 | |
| 430 | |
| 431 mov [edi+8],ecx | |
| 432 add edi,BYTE 3*4 | |
| 433 | |
| 434 dec ebp | |
| 435 jnz .L5 | |
| 436 | |
| 437 ; check tail | |
| 438 pop ecx | |
| 439 and ecx,BYTE 11b | |
| 440 jz .L7 | |
| 441 | |
| 442 .L6 ; tail loop | |
| 443 mov dl,[esi] | |
| 444 mov bl,[esi+1] | |
| 445 mov al,[esi+2] | |
| 446 mov [edi],al | |
| 447 mov [edi+1],bl | |
| 448 mov [edi+2],dl | |
| 449 add esi,BYTE 4 | |
| 450 add edi,BYTE 3 | |
| 451 dec ecx | |
| 452 jnz .L6 | |
| 453 | |
| 454 .L7 | |
| 455 pop ebp | |
|
3983
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Removed textrels from hermes code.
Ryan C. Gordon <icculus@icculus.org>
parents:
1873
diff
changeset
|
456 retn |
| 0 | 457 |
| 458 | |
| 459 | |
| 460 | |
| 461 ;; 32 bit RGB 888 to 16 BIT RGB 565 | |
| 462 | |
| 463 _ConvertX86p32_16RGB565: | |
| 464 ; check short | |
| 465 cmp ecx,BYTE 16 | |
| 466 ja .L3 | |
| 467 | |
| 468 .L1 ; short loop | |
| 469 mov bl,[esi+0] ; blue | |
| 470 mov al,[esi+1] ; green | |
| 471 mov ah,[esi+2] ; red | |
| 472 shr ah,3 | |
| 473 and al,11111100b | |
| 474 shl eax,3 | |
| 475 shr bl,3 | |
| 476 add al,bl | |
| 477 mov [edi+0],al | |
| 478 mov [edi+1],ah | |
| 479 add esi,BYTE 4 | |
| 480 add edi,BYTE 2 | |
| 481 dec ecx | |
| 482 jnz .L1 | |
| 483 | |
| 484 .L2: ; End of short loop | |
|
3983
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Removed textrels from hermes code.
Ryan C. Gordon <icculus@icculus.org>
parents:
1873
diff
changeset
|
485 retn |
| 0 | 486 |
| 487 | |
| 488 .L3 ; head | |
| 489 mov ebx,edi | |
| 490 and ebx,BYTE 11b | |
| 491 jz .L4 | |
| 492 | |
| 493 mov bl,[esi+0] ; blue | |
| 494 mov al,[esi+1] ; green | |
| 495 mov ah,[esi+2] ; red | |
| 496 shr ah,3 | |
| 497 and al,11111100b | |
| 498 shl eax,3 | |
| 499 shr bl,3 | |
| 500 add al,bl | |
| 501 mov [edi+0],al | |
| 502 mov [edi+1],ah | |
| 503 add esi,BYTE 4 | |
| 504 add edi,BYTE 2 | |
| 505 dec ecx | |
| 506 | |
| 507 .L4: | |
| 508 ; save count | |
| 509 push ecx | |
| 510 | |
| 511 ; unroll twice | |
| 512 shr ecx,1 | |
| 513 | |
| 514 ; point arrays to end | |
| 515 lea esi,[esi+ecx*8] | |
| 516 lea edi,[edi+ecx*4] | |
| 517 | |
| 518 ; negative counter | |
| 519 neg ecx | |
| 520 jmp SHORT .L6 | |
| 521 | |
| 522 .L5: | |
| 523 mov [edi+ecx*4-4],eax | |
| 524 .L6: | |
| 525 mov eax,[esi+ecx*8] | |
| 526 | |
| 527 shr ah,2 | |
| 528 mov ebx,[esi+ecx*8+4] | |
| 529 | |
| 530 shr eax,3 | |
| 531 mov edx,[esi+ecx*8+4] | |
| 532 | |
| 533 shr bh,2 | |
| 534 mov dl,[esi+ecx*8+2] | |
| 535 | |
| 536 shl ebx,13 | |
| 537 and eax,000007FFh | |
| 538 | |
| 539 shl edx,8 | |
| 540 and ebx,07FF0000h | |
| 541 | |
| 542 and edx,0F800F800h | |
| 543 add eax,ebx | |
| 544 | |
| 545 add eax,edx | |
| 546 inc ecx | |
| 547 | |
| 548 jnz .L5 | |
| 549 | |
| 550 mov [edi+ecx*4-4],eax | |
| 551 | |
| 552 ; tail | |
| 553 pop ecx | |
| 554 test cl,1 | |
| 555 jz .L7 | |
| 556 | |
| 557 mov bl,[esi+0] ; blue | |
| 558 mov al,[esi+1] ; green | |
| 559 mov ah,[esi+2] ; red | |
| 560 shr ah,3 | |
| 561 and al,11111100b | |
| 562 shl eax,3 | |
| 563 shr bl,3 | |
| 564 add al,bl | |
| 565 mov [edi+0],al | |
| 566 mov [edi+1],ah | |
| 567 add esi,BYTE 4 | |
| 568 add edi,BYTE 2 | |
| 569 | |
| 570 .L7: | |
|
3983
540466e900db
Removed textrels from hermes code.
Ryan C. Gordon <icculus@icculus.org>
parents:
1873
diff
changeset
|
571 retn |
| 0 | 572 |
| 573 | |
| 574 | |
| 575 | |
| 576 ;; 32 bit RGB 888 to 16 BIT BGR 565 | |
| 577 | |
| 578 _ConvertX86p32_16BGR565: | |
| 579 | |
| 580 ; check short | |
| 581 cmp ecx,BYTE 16 | |
| 582 ja .L3 | |
| 583 | |
| 584 .L1 ; short loop | |
| 585 mov ah,[esi+0] ; blue | |
| 586 mov al,[esi+1] ; green | |
| 587 mov bl,[esi+2] ; red | |
| 588 shr ah,3 | |
| 589 and al,11111100b | |
| 590 shl eax,3 | |
| 591 shr bl,3 | |
| 592 add al,bl | |
| 593 mov [edi+0],al | |
| 594 mov [edi+1],ah | |
| 595 add esi,BYTE 4 | |
| 596 add edi,BYTE 2 | |
| 597 dec ecx | |
| 598 jnz .L1 | |
| 599 .L2 | |
|
3983
540466e900db
Removed textrels from hermes code.
Ryan C. Gordon <icculus@icculus.org>
parents:
1873
diff
changeset
|
600 retn |
| 0 | 601 |
| 602 .L3 ; head | |
| 603 mov ebx,edi | |
| 604 and ebx,BYTE 11b | |
| 605 jz .L4 | |
| 606 mov ah,[esi+0] ; blue | |
| 607 mov al,[esi+1] ; green | |
| 608 mov bl,[esi+2] ; red | |
| 609 shr ah,3 | |
| 610 and al,11111100b | |
| 611 shl eax,3 | |
| 612 shr bl,3 | |
| 613 add al,bl | |
| 614 mov [edi+0],al | |
| 615 mov [edi+1],ah | |
| 616 add esi,BYTE 4 | |
| 617 add edi,BYTE 2 | |
| 618 dec ecx | |
| 619 | |
| 620 .L4 ; save count | |
| 621 push ecx | |
| 622 | |
| 623 ; unroll twice | |
| 624 shr ecx,1 | |
| 625 | |
| 626 ; point arrays to end | |
| 627 lea esi,[esi+ecx*8] | |
| 628 lea edi,[edi+ecx*4] | |
| 629 | |
| 630 ; negative count | |
| 631 neg ecx | |
| 632 jmp SHORT .L6 | |
| 633 | |
| 634 .L5 | |
| 635 mov [edi+ecx*4-4],eax | |
| 636 .L6 | |
| 637 mov edx,[esi+ecx*8+4] | |
| 638 | |
| 639 mov bh,[esi+ecx*8+4] | |
| 640 mov ah,[esi+ecx*8] | |
| 641 | |
| 642 shr bh,3 | |
| 643 mov al,[esi+ecx*8+1] | |
| 644 | |
| 645 shr ah,3 | |
| 646 mov bl,[esi+ecx*8+5] | |
| 647 | |
| 648 shl eax,3 | |
| 649 mov dl,[esi+ecx*8+2] | |
| 650 | |
| 651 shl ebx,19 | |
| 652 and eax,0000FFE0h | |
| 653 | |
| 654 shr edx,3 | |
| 655 and ebx,0FFE00000h | |
| 656 | |
| 657 and edx,001F001Fh | |
| 658 add eax,ebx | |
| 659 | |
| 660 add eax,edx | |
| 661 inc ecx | |
| 662 | |
| 663 jnz .L5 | |
| 664 | |
| 665 mov [edi+ecx*4-4],eax | |
| 666 | |
| 667 ; tail | |
| 668 pop ecx | |
| 669 and ecx,BYTE 1 | |
| 670 jz .L7 | |
| 671 mov ah,[esi+0] ; blue | |
| 672 mov al,[esi+1] ; green | |
| 673 mov bl,[esi+2] ; red | |
| 674 shr ah,3 | |
| 675 and al,11111100b | |
| 676 shl eax,3 | |
| 677 shr bl,3 | |
| 678 add al,bl | |
| 679 mov [edi+0],al | |
| 680 mov [edi+1],ah | |
| 681 add esi,BYTE 4 | |
| 682 add edi,BYTE 2 | |
| 683 | |
| 684 .L7 | |
|
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Ryan C. Gordon <icculus@icculus.org>
parents:
1873
diff
changeset
|
685 retn |
| 0 | 686 |
| 687 | |
| 688 | |
| 689 | |
| 690 ;; 32 BIT RGB TO 16 BIT RGB 555 | |
| 691 | |
| 692 _ConvertX86p32_16RGB555: | |
| 693 | |
| 694 ; check short | |
| 695 cmp ecx,BYTE 16 | |
| 696 ja .L3 | |
| 697 | |
| 698 .L1 ; short loop | |
| 699 mov bl,[esi+0] ; blue | |
| 700 mov al,[esi+1] ; green | |
| 701 mov ah,[esi+2] ; red | |
| 702 shr ah,3 | |
| 703 and al,11111000b | |
| 704 shl eax,2 | |
| 705 shr bl,3 | |
| 706 add al,bl | |
| 707 mov [edi+0],al | |
| 708 mov [edi+1],ah | |
| 709 add esi,BYTE 4 | |
| 710 add edi,BYTE 2 | |
| 711 dec ecx | |
| 712 jnz .L1 | |
| 713 .L2 | |
|
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Ryan C. Gordon <icculus@icculus.org>
parents:
1873
diff
changeset
|
714 retn |
| 0 | 715 |
| 716 .L3 ; head | |
| 717 mov ebx,edi | |
| 718 and ebx,BYTE 11b | |
| 719 jz .L4 | |
| 720 mov bl,[esi+0] ; blue | |
| 721 mov al,[esi+1] ; green | |
| 722 mov ah,[esi+2] ; red | |
| 723 shr ah,3 | |
| 724 and al,11111000b | |
| 725 shl eax,2 | |
| 726 shr bl,3 | |
| 727 add al,bl | |
| 728 mov [edi+0],al | |
| 729 mov [edi+1],ah | |
| 730 add esi,BYTE 4 | |
| 731 add edi,BYTE 2 | |
| 732 dec ecx | |
| 733 | |
| 734 .L4 ; save count | |
| 735 push ecx | |
| 736 | |
| 737 ; unroll twice | |
| 738 shr ecx,1 | |
| 739 | |
| 740 ; point arrays to end | |
| 741 lea esi,[esi+ecx*8] | |
| 742 lea edi,[edi+ecx*4] | |
| 743 | |
| 744 ; negative counter | |
| 745 neg ecx | |
| 746 jmp SHORT .L6 | |
| 747 | |
| 748 .L5 | |
| 749 mov [edi+ecx*4-4],eax | |
| 750 .L6 | |
| 751 mov eax,[esi+ecx*8] | |
| 752 | |
| 753 shr ah,3 | |
| 754 mov ebx,[esi+ecx*8+4] | |
| 755 | |
| 756 shr eax,3 | |
| 757 mov edx,[esi+ecx*8+4] | |
| 758 | |
| 759 shr bh,3 | |
| 760 mov dl,[esi+ecx*8+2] | |
| 761 | |
| 762 shl ebx,13 | |
| 763 and eax,000007FFh | |
| 764 | |
| 765 shl edx,7 | |
| 766 and ebx,07FF0000h | |
| 767 | |
| 768 and edx,07C007C00h | |
| 769 add eax,ebx | |
| 770 | |
| 771 add eax,edx | |
| 772 inc ecx | |
| 773 | |
| 774 jnz .L5 | |
| 775 | |
| 776 mov [edi+ecx*4-4],eax | |
| 777 | |
| 778 ; tail | |
| 779 pop ecx | |
| 780 and ecx,BYTE 1 | |
| 781 jz .L7 | |
| 782 mov bl,[esi+0] ; blue | |
| 783 mov al,[esi+1] ; green | |
| 784 mov ah,[esi+2] ; red | |
| 785 shr ah,3 | |
| 786 and al,11111000b | |
| 787 shl eax,2 | |
| 788 shr bl,3 | |
| 789 add al,bl | |
| 790 mov [edi+0],al | |
| 791 mov [edi+1],ah | |
| 792 add esi,BYTE 4 | |
| 793 add edi,BYTE 2 | |
| 794 | |
| 795 .L7 | |
|
3983
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Ryan C. Gordon <icculus@icculus.org>
parents:
1873
diff
changeset
|
796 retn |
| 0 | 797 |
| 798 | |
| 799 | |
| 800 | |
| 801 ;; 32 BIT RGB TO 16 BIT BGR 555 | |
| 802 | |
| 803 _ConvertX86p32_16BGR555: | |
| 804 | |
| 805 ; check short | |
| 806 cmp ecx,BYTE 16 | |
| 807 ja .L3 | |
| 808 | |
| 809 | |
| 810 .L1 ; short loop | |
| 811 mov ah,[esi+0] ; blue | |
| 812 mov al,[esi+1] ; green | |
| 813 mov bl,[esi+2] ; red | |
| 814 shr ah,3 | |
| 815 and al,11111000b | |
| 816 shl eax,2 | |
| 817 shr bl,3 | |
| 818 add al,bl | |
| 819 mov [edi+0],al | |
| 820 mov [edi+1],ah | |
| 821 add esi,BYTE 4 | |
| 822 add edi,BYTE 2 | |
| 823 dec ecx | |
| 824 jnz .L1 | |
| 825 .L2 | |
|
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Ryan C. Gordon <icculus@icculus.org>
parents:
1873
diff
changeset
|
826 retn |
| 0 | 827 |
| 828 .L3 ; head | |
| 829 mov ebx,edi | |
| 830 and ebx,BYTE 11b | |
| 831 jz .L4 | |
| 832 mov ah,[esi+0] ; blue | |
| 833 mov al,[esi+1] ; green | |
| 834 mov bl,[esi+2] ; red | |
| 835 shr ah,3 | |
| 836 and al,11111000b | |
| 837 shl eax,2 | |
| 838 shr bl,3 | |
| 839 add al,bl | |
| 840 mov [edi+0],al | |
| 841 mov [edi+1],ah | |
| 842 add esi,BYTE 4 | |
| 843 add edi,BYTE 2 | |
| 844 dec ecx | |
| 845 | |
| 846 .L4 ; save count | |
| 847 push ecx | |
| 848 | |
| 849 ; unroll twice | |
| 850 shr ecx,1 | |
| 851 | |
| 852 ; point arrays to end | |
| 853 lea esi,[esi+ecx*8] | |
| 854 lea edi,[edi+ecx*4] | |
| 855 | |
| 856 ; negative counter | |
| 857 neg ecx | |
| 858 jmp SHORT .L6 | |
| 859 | |
| 860 .L5 | |
| 861 mov [edi+ecx*4-4],eax | |
| 862 .L6 | |
| 863 mov edx,[esi+ecx*8+4] | |
| 864 | |
| 865 mov bh,[esi+ecx*8+4] | |
| 866 mov ah,[esi+ecx*8] | |
| 867 | |
| 868 shr bh,3 | |
| 869 mov al,[esi+ecx*8+1] | |
| 870 | |
| 871 shr ah,3 | |
| 872 mov bl,[esi+ecx*8+5] | |
| 873 | |
| 874 shl eax,2 | |
| 875 mov dl,[esi+ecx*8+2] | |
| 876 | |
| 877 shl ebx,18 | |
| 878 and eax,00007FE0h | |
| 879 | |
| 880 shr edx,3 | |
| 881 and ebx,07FE00000h | |
| 882 | |
| 883 and edx,001F001Fh | |
| 884 add eax,ebx | |
| 885 | |
| 886 add eax,edx | |
| 887 inc ecx | |
| 888 | |
| 889 jnz .L5 | |
| 890 | |
| 891 mov [edi+ecx*4-4],eax | |
| 892 | |
| 893 ; tail | |
| 894 pop ecx | |
| 895 and ecx,BYTE 1 | |
| 896 jz .L7 | |
| 897 mov ah,[esi+0] ; blue | |
| 898 mov al,[esi+1] ; green | |
| 899 mov bl,[esi+2] ; red | |
| 900 shr ah,3 | |
| 901 and al,11111000b | |
| 902 shl eax,2 | |
| 903 shr bl,3 | |
| 904 add al,bl | |
| 905 mov [edi+0],al | |
| 906 mov [edi+1],ah | |
| 907 add esi,BYTE 4 | |
| 908 add edi,BYTE 2 | |
| 909 | |
| 910 .L7 | |
|
3983
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Ryan C. Gordon <icculus@icculus.org>
parents:
1873
diff
changeset
|
911 retn |
| 0 | 912 |
| 913 | |
| 914 | |
| 915 | |
| 916 | |
| 917 ;; FROM 32 BIT RGB to 8 BIT RGB (rrrgggbbb) | |
| 918 ;; This routine writes FOUR pixels at once (dword) and then, if they exist | |
| 919 ;; the trailing three pixels | |
| 920 _ConvertX86p32_8RGB332: | |
| 921 | |
| 922 | |
| 923 .L_ALIGNED | |
| 924 push ecx | |
| 925 | |
| 926 shr ecx,2 ; We will draw 4 pixels at once | |
| 927 jnz .L1 | |
| 928 | |
| 929 jmp .L2 ; short jump out of range :( | |
| 930 | |
| 931 .L1: | |
| 932 mov eax,[esi] ; first pair of pixels | |
| 933 mov edx,[esi+4] | |
| 934 | |
| 935 shr dl,6 | |
| 936 mov ebx,eax | |
| 937 | |
| 938 shr al,6 | |
| 939 and ah,0e0h | |
| 940 | |
| 941 shr ebx,16 | |
| 942 and dh,0e0h | |
| 943 | |
| 944 shr ah,3 | |
| 945 and bl,0e0h | |
| 946 | |
| 947 shr dh,3 | |
| 948 | |
| 949 or al,bl | |
| 950 | |
| 951 mov ebx,edx | |
| 952 or al,ah | |
| 953 | |
| 954 shr ebx,16 | |
| 955 or dl,dh | |
| 956 | |
| 957 and bl,0e0h | |
| 958 | |
| 959 or dl,bl | |
| 960 | |
| 961 mov ah,dl | |
| 962 | |
| 963 | |
| 964 | |
| 965 mov ebx,[esi+8] ; second pair of pixels | |
| 966 | |
| 967 mov edx,ebx | |
| 968 and bh,0e0h | |
| 969 | |
| 970 shr bl,6 | |
| 971 and edx,0e00000h | |
| 972 | |
| 973 shr edx,16 | |
| 974 | |
| 975 shr bh,3 | |
| 976 | |
| 977 ror eax,16 | |
| 978 or bl,dl | |
| 979 | |
| 980 mov edx,[esi+12] | |
| 981 or bl,bh | |
| 982 | |
| 983 mov al,bl | |
| 984 | |
| 985 mov ebx,edx | |
| 986 and dh,0e0h | |
| 987 | |
| 988 shr dl,6 | |
| 989 and ebx,0e00000h | |
| 990 | |
| 991 shr dh,3 | |
| 992 mov ah,dl | |
| 993 | |
| 994 shr ebx,16 | |
| 995 or ah,dh | |
| 996 | |
| 997 or ah,bl | |
| 998 | |
| 999 rol eax,16 | |
| 1000 add esi,BYTE 16 | |
| 1001 | |
| 1002 mov [edi],eax | |
| 1003 add edi,BYTE 4 | |
| 1004 | |
| 1005 dec ecx | |
| 1006 jz .L2 ; L1 out of range for short jump :( | |
| 1007 | |
| 1008 jmp .L1 | |
| 1009 .L2: | |
| 1010 | |
| 1011 pop ecx | |
| 1012 and ecx,BYTE 3 ; mask out number of pixels to draw | |
| 1013 | |
| 1014 jz .L4 ; Nothing to do anymore | |
| 1015 | |
| 1016 .L3: | |
| 1017 mov eax,[esi] ; single pixel conversion for trailing pixels | |
| 1018 | |
| 1019 mov ebx,eax | |
| 1020 | |
| 1021 shr al,6 | |
| 1022 and ah,0e0h | |
| 1023 | |
| 1024 shr ebx,16 | |
| 1025 | |
| 1026 shr ah,3 | |
| 1027 and bl,0e0h | |
| 1028 | |
| 1029 or al,ah | |
| 1030 or al,bl | |
| 1031 | |
| 1032 mov [edi],al | |
| 1033 | |
| 1034 inc edi | |
| 1035 add esi,BYTE 4 | |
| 1036 | |
| 1037 dec ecx | |
| 1038 jnz .L3 | |
| 1039 | |
| 1040 .L4: | |
|
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Ryan C. Gordon <icculus@icculus.org>
parents:
1873
diff
changeset
|
1041 retn |
|
1199
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From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
1166
diff
changeset
|
1042 |
|
2d6dc7de1145
From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
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diff
changeset
|
1043 %ifidn __OUTPUT_FORMAT__,elf |
|
2d6dc7de1145
From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
1166
diff
changeset
|
1044 section .note.GNU-stack noalloc noexec nowrite progbits |
|
2d6dc7de1145
From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
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changeset
|
1045 %endif |