Mercurial > sdl-ios-xcode
annotate src/hermes/x86p_16.asm @ 3798:c8b3d3d13ed1 SDL-ryan-multiple-audio-device
Audio bootstraps can now specify that a driver is only to be used if
explicitly requested (for things like the "disk" driver that is always
available but you would never want to default to using).
Trimmed out code that can be handled by stubs in the core. The "dummy" driver
is pretty damned small now. :)
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Wed, 04 Oct 2006 21:27:53 +0000 |
| parents | eb4d9d99849b |
| children | 180fa05e98e2 |
| rev | line source |
|---|---|
| 0 | 1 ; |
| 2 ; x86 format converters for HERMES | |
| 3 ; Copyright (c) 1998 Glenn Fielder (gaffer@gaffer.org) | |
| 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 ; Routines adjusted for Hermes by Christian Nentwich (brn@eleet.mcb.at) | |
| 10 ; Used with permission. | |
| 11 ; | |
| 12 | |
| 13 BITS 32 | |
| 14 | |
|
1873
eb4d9d99849b
Renamed, per Mike's comment on bug #157
Sam Lantinga <slouken@libsdl.org>
parents:
1871
diff
changeset
|
15 %include "common.inc" |
| 1871 | 16 |
| 17 SDL_FUNC _ConvertX86p16_16BGR565 | |
| 18 SDL_FUNC _ConvertX86p16_16RGB555 | |
| 19 SDL_FUNC _ConvertX86p16_16BGR555 | |
| 20 SDL_FUNC _ConvertX86p16_8RGB332 | |
| 0 | 21 |
| 22 EXTERN _ConvertX86 | |
| 23 EXTERN _x86return | |
| 24 | |
| 25 SECTION .text | |
| 26 | |
| 27 _ConvertX86p16_16BGR565: | |
| 28 | |
| 29 ; check short | |
| 30 cmp ecx,BYTE 16 | |
| 31 ja .L3 | |
| 32 | |
| 33 | |
| 34 .L1 ; short loop | |
| 35 mov al,[esi] | |
| 36 mov ah,[esi+1] | |
| 37 mov ebx,eax | |
| 38 mov edx,eax | |
| 39 shr eax,11 | |
| 40 and eax,BYTE 11111b | |
| 41 and ebx,11111100000b | |
| 42 shl edx,11 | |
| 43 add eax,ebx | |
| 44 add eax,edx | |
| 45 mov [edi],al | |
| 46 mov [edi+1],ah | |
| 47 add esi,BYTE 2 | |
| 48 add edi,BYTE 2 | |
| 49 dec ecx | |
| 50 jnz .L1 | |
| 51 .L2 | |
| 52 jmp _x86return | |
| 53 | |
| 54 .L3 ; head | |
| 55 mov eax,edi | |
| 56 and eax,BYTE 11b | |
| 57 jz .L4 | |
| 58 mov al,[esi] | |
| 59 mov ah,[esi+1] | |
| 60 mov ebx,eax | |
| 61 mov edx,eax | |
| 62 shr eax,11 | |
| 63 and eax,BYTE 11111b | |
| 64 and ebx,11111100000b | |
| 65 shl edx,11 | |
| 66 add eax,ebx | |
| 67 add eax,edx | |
| 68 mov [edi],al | |
| 69 mov [edi+1],ah | |
| 70 add esi,BYTE 2 | |
| 71 add edi,BYTE 2 | |
| 72 dec ecx | |
| 73 | |
| 74 .L4 ; save count | |
| 75 push ecx | |
| 76 | |
| 77 ; unroll twice | |
| 78 shr ecx,1 | |
| 79 | |
| 80 ; point arrays to end | |
| 81 lea esi,[esi+ecx*4] | |
| 82 lea edi,[edi+ecx*4] | |
| 83 | |
| 84 ; negative counter | |
| 85 neg ecx | |
| 86 jmp SHORT .L6 | |
| 87 | |
| 88 .L5 mov [edi+ecx*4-4],eax | |
| 89 .L6 mov eax,[esi+ecx*4] | |
| 90 | |
| 91 mov ebx,[esi+ecx*4] | |
| 92 and eax,07E007E0h | |
| 93 | |
| 94 mov edx,[esi+ecx*4] | |
| 95 and ebx,0F800F800h | |
| 96 | |
| 97 shr ebx,11 | |
| 98 and edx,001F001Fh | |
| 99 | |
| 100 shl edx,11 | |
| 101 add eax,ebx | |
| 102 | |
| 103 add eax,edx | |
| 104 inc ecx | |
| 105 | |
| 106 jnz .L5 | |
| 107 | |
| 108 mov [edi+ecx*4-4],eax | |
| 109 | |
| 110 ; tail | |
| 111 pop ecx | |
| 112 and ecx,BYTE 1 | |
| 113 jz .L7 | |
| 114 mov al,[esi] | |
| 115 mov ah,[esi+1] | |
| 116 mov ebx,eax | |
| 117 mov edx,eax | |
| 118 shr eax,11 | |
| 119 and eax,BYTE 11111b | |
| 120 and ebx,11111100000b | |
| 121 shl edx,11 | |
| 122 add eax,ebx | |
| 123 add eax,edx | |
| 124 mov [edi],al | |
| 125 mov [edi+1],ah | |
| 126 add esi,BYTE 2 | |
| 127 add edi,BYTE 2 | |
| 128 | |
| 129 .L7 | |
| 130 jmp _x86return | |
| 131 | |
| 132 | |
| 133 | |
| 134 | |
| 135 | |
| 136 | |
| 137 _ConvertX86p16_16RGB555: | |
| 138 | |
| 139 ; check short | |
| 140 cmp ecx,BYTE 32 | |
| 141 ja .L3 | |
| 142 | |
| 143 | |
| 144 .L1 ; short loop | |
| 145 mov al,[esi] | |
| 146 mov ah,[esi+1] | |
| 147 mov ebx,eax | |
| 148 shr ebx,1 | |
| 149 and ebx, 0111111111100000b | |
| 150 and eax,BYTE 0000000000011111b | |
| 151 add eax,ebx | |
| 152 mov [edi],al | |
| 153 mov [edi+1],ah | |
| 154 add esi,BYTE 2 | |
| 155 add edi,BYTE 2 | |
| 156 dec ecx | |
| 157 jnz .L1 | |
| 158 .L2 | |
| 159 jmp _x86return | |
| 160 | |
| 161 .L3 ; head | |
| 162 mov eax,edi | |
| 163 and eax,BYTE 11b | |
| 164 jz .L4 | |
| 165 mov al,[esi] | |
| 166 mov ah,[esi+1] | |
| 167 mov ebx,eax | |
| 168 shr ebx,1 | |
| 169 and ebx, 0111111111100000b | |
| 170 and eax,BYTE 0000000000011111b | |
| 171 add eax,ebx | |
| 172 mov [edi],al | |
| 173 mov [edi+1],ah | |
| 174 add esi,BYTE 2 | |
| 175 add edi,BYTE 2 | |
| 176 dec ecx | |
| 177 | |
| 178 .L4 ; save ebp | |
| 179 push ebp | |
| 180 | |
| 181 ; save count | |
| 182 push ecx | |
| 183 | |
| 184 ; unroll four times | |
| 185 shr ecx,2 | |
| 186 | |
| 187 ; point arrays to end | |
| 188 lea esi,[esi+ecx*8] | |
| 189 lea edi,[edi+ecx*8] | |
| 190 | |
| 191 ; negative counter | |
| 192 xor ebp,ebp | |
| 193 sub ebp,ecx | |
| 194 | |
| 195 .L5 mov eax,[esi+ebp*8] ; agi? | |
| 196 mov ecx,[esi+ebp*8+4] | |
| 197 | |
| 198 mov ebx,eax | |
| 199 mov edx,ecx | |
| 200 | |
| 201 and eax,0FFC0FFC0h | |
| 202 and ecx,0FFC0FFC0h | |
| 203 | |
| 204 shr eax,1 | |
| 205 and ebx,001F001Fh | |
| 206 | |
| 207 shr ecx,1 | |
| 208 and edx,001F001Fh | |
| 209 | |
| 210 add eax,ebx | |
| 211 add ecx,edx | |
| 212 | |
| 213 mov [edi+ebp*8],eax | |
| 214 mov [edi+ebp*8+4],ecx | |
| 215 | |
| 216 inc ebp | |
| 217 jnz .L5 | |
| 218 | |
| 219 ; tail | |
| 220 pop ecx | |
| 221 .L6 and ecx,BYTE 11b | |
| 222 jz .L7 | |
| 223 mov al,[esi] | |
| 224 mov ah,[esi+1] | |
| 225 mov ebx,eax | |
| 226 shr ebx,1 | |
| 227 and ebx, 0111111111100000b | |
| 228 and eax,BYTE 0000000000011111b | |
| 229 add eax,ebx | |
| 230 mov [edi],al | |
| 231 mov [edi+1],ah | |
| 232 add esi,BYTE 2 | |
| 233 add edi,BYTE 2 | |
| 234 dec ecx | |
| 235 jmp SHORT .L6 | |
| 236 | |
| 237 .L7 pop ebp | |
| 238 jmp _x86return | |
| 239 | |
| 240 | |
| 241 | |
| 242 | |
| 243 | |
| 244 | |
| 245 _ConvertX86p16_16BGR555: | |
| 246 | |
| 247 ; check short | |
| 248 cmp ecx,BYTE 16 | |
| 249 ja .L3 | |
| 250 | |
| 251 | |
| 252 .L1 ; short loop | |
| 253 mov al,[esi] | |
| 254 mov ah,[esi+1] | |
| 255 mov ebx,eax | |
| 256 mov edx,eax | |
| 257 shr eax,11 | |
| 258 and eax,BYTE 11111b | |
| 259 shr ebx,1 | |
| 260 and ebx,1111100000b | |
| 261 shl edx,10 | |
| 262 and edx,0111110000000000b | |
| 263 add eax,ebx | |
| 264 add eax,edx | |
| 265 mov [edi],al | |
| 266 mov [edi+1],ah | |
| 267 add esi,BYTE 2 | |
| 268 add edi,BYTE 2 | |
| 269 dec ecx | |
| 270 jnz .L1 | |
| 271 .L2 | |
| 272 jmp _x86return | |
| 273 | |
| 274 .L3 ; head | |
| 275 mov eax,edi | |
| 276 and eax,BYTE 11b | |
| 277 jz .L4 | |
| 278 mov al,[esi] | |
| 279 mov ah,[esi+1] | |
| 280 mov ebx,eax | |
| 281 mov edx,eax | |
| 282 shr eax,11 | |
| 283 and eax,BYTE 11111b | |
| 284 shr ebx,1 | |
| 285 and ebx,1111100000b | |
| 286 shl edx,10 | |
| 287 and edx,0111110000000000b | |
| 288 add eax,ebx | |
| 289 add eax,edx | |
| 290 mov [edi],al | |
| 291 mov [edi+1],ah | |
| 292 add esi,BYTE 2 | |
| 293 add edi,BYTE 2 | |
| 294 dec ecx | |
| 295 | |
| 296 .L4 ; save count | |
| 297 push ecx | |
| 298 | |
| 299 ; unroll twice | |
| 300 shr ecx,1 | |
| 301 | |
| 302 ; point arrays to end | |
| 303 lea esi,[esi+ecx*4] | |
| 304 lea edi,[edi+ecx*4] | |
| 305 | |
| 306 ; negative counter | |
| 307 neg ecx | |
| 308 jmp SHORT .L6 | |
| 309 | |
| 310 .L5 mov [edi+ecx*4-4],eax | |
| 311 .L6 mov eax,[esi+ecx*4] | |
| 312 | |
| 313 shr eax,1 | |
| 314 mov ebx,[esi+ecx*4] | |
| 315 | |
| 316 and eax,03E003E0h | |
| 317 mov edx,[esi+ecx*4] | |
| 318 | |
| 319 and ebx,0F800F800h | |
| 320 | |
| 321 shr ebx,11 | |
| 322 and edx,001F001Fh | |
| 323 | |
| 324 shl edx,10 | |
| 325 add eax,ebx | |
| 326 | |
| 327 add eax,edx | |
| 328 inc ecx | |
| 329 | |
| 330 jnz .L5 | |
| 331 | |
| 332 mov [edi+ecx*4-4],eax | |
| 333 | |
| 334 ; tail | |
| 335 pop ecx | |
| 336 and ecx,BYTE 1 | |
| 337 jz .L7 | |
| 338 mov al,[esi] | |
| 339 mov ah,[esi+1] | |
| 340 mov ebx,eax | |
| 341 mov edx,eax | |
| 342 shr eax,11 | |
| 343 and eax,BYTE 11111b | |
| 344 shr ebx,1 | |
| 345 and ebx,1111100000b | |
| 346 shl edx,10 | |
| 347 and edx,0111110000000000b | |
| 348 add eax,ebx | |
| 349 add eax,edx | |
| 350 mov [edi],al | |
| 351 mov [edi+1],ah | |
| 352 add esi,BYTE 2 | |
| 353 add edi,BYTE 2 | |
| 354 | |
| 355 .L7 | |
| 356 jmp _x86return | |
| 357 | |
| 358 | |
| 359 | |
| 360 | |
| 361 | |
| 362 | |
| 363 _ConvertX86p16_8RGB332: | |
| 364 | |
| 365 ; check short | |
| 366 cmp ecx,BYTE 16 | |
| 367 ja .L3 | |
| 368 | |
| 369 | |
| 370 .L1 ; short loop | |
| 371 mov al,[esi+0] | |
| 372 mov ah,[esi+1] | |
| 373 mov ebx,eax | |
| 374 mov edx,eax | |
| 375 and eax,BYTE 11000b ; blue | |
| 376 shr eax,3 | |
| 377 and ebx,11100000000b ; green | |
| 378 shr ebx,6 | |
| 379 and edx,1110000000000000b ; red | |
| 380 shr edx,8 | |
| 381 add eax,ebx | |
| 382 add eax,edx | |
| 383 mov [edi],al | |
| 384 add esi,BYTE 2 | |
| 385 inc edi | |
| 386 dec ecx | |
| 387 jnz .L1 | |
| 388 .L2 | |
| 389 jmp _x86return | |
| 390 | |
| 391 .L3 mov eax,edi | |
| 392 and eax,BYTE 11b | |
| 393 jz .L4 | |
| 394 mov al,[esi+0] | |
| 395 mov ah,[esi+1] | |
| 396 mov ebx,eax | |
| 397 mov edx,eax | |
| 398 and eax,BYTE 11000b ; blue | |
| 399 shr eax,3 | |
| 400 and ebx,11100000000b ; green | |
| 401 shr ebx,6 | |
| 402 and edx,1110000000000000b ; red | |
| 403 shr edx,8 | |
| 404 add eax,ebx | |
| 405 add eax,edx | |
| 406 mov [edi],al | |
| 407 add esi,BYTE 2 | |
| 408 inc edi | |
| 409 dec ecx | |
| 410 jmp SHORT .L3 | |
| 411 | |
| 412 .L4 ; save ebp | |
| 413 push ebp | |
| 414 | |
| 415 ; save count | |
| 416 push ecx | |
| 417 | |
| 418 ; unroll 4 times | |
| 419 shr ecx,2 | |
| 420 | |
| 421 ; prestep | |
| 422 mov dl,[esi+0] | |
| 423 mov bl,[esi+1] | |
| 424 mov dh,[esi+2] | |
| 425 | |
| 426 .L5 shl edx,16 | |
| 427 mov bh,[esi+3] | |
| 428 | |
| 429 shl ebx,16 | |
| 430 mov dl,[esi+4] | |
| 431 | |
| 432 mov dh,[esi+6] | |
| 433 mov bl,[esi+5] | |
| 434 | |
| 435 and edx,00011000000110000001100000011000b | |
| 436 mov bh,[esi+7] | |
| 437 | |
| 438 ror edx,16+3 | |
| 439 mov eax,ebx ; setup eax for reds | |
| 440 | |
| 441 and ebx,00000111000001110000011100000111b | |
| 442 and eax,11100000111000001110000011100000b ; reds | |
| 443 | |
| 444 ror ebx,16-2 | |
| 445 add esi,BYTE 8 | |
| 446 | |
| 447 ror eax,16 | |
| 448 add edi,BYTE 4 | |
| 449 | |
| 450 add eax,ebx | |
| 451 mov bl,[esi+1] ; greens | |
| 452 | |
| 453 add eax,edx | |
| 454 mov dl,[esi+0] ; blues | |
| 455 | |
| 456 mov [edi-4],eax | |
| 457 mov dh,[esi+2] | |
| 458 | |
| 459 dec ecx | |
| 460 jnz .L5 | |
| 461 | |
| 462 ; check tail | |
| 463 pop ecx | |
| 464 and ecx,BYTE 11b | |
| 465 jz .L7 | |
| 466 | |
| 467 .L6 ; tail | |
| 468 mov al,[esi+0] | |
| 469 mov ah,[esi+1] | |
| 470 mov ebx,eax | |
| 471 mov edx,eax | |
| 472 and eax,BYTE 11000b ; blue | |
| 473 shr eax,3 | |
| 474 and ebx,11100000000b ; green | |
| 475 shr ebx,6 | |
| 476 and edx,1110000000000000b ; red | |
| 477 shr edx,8 | |
| 478 add eax,ebx | |
| 479 add eax,edx | |
| 480 mov [edi],al | |
| 481 add esi,BYTE 2 | |
| 482 inc edi | |
| 483 dec ecx | |
| 484 jnz .L6 | |
| 485 | |
| 486 .L7 pop ebp | |
| 487 jmp _x86return | |
| 488 | |
|
1199
2d6dc7de1145
From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
1166
diff
changeset
|
489 %ifidn __OUTPUT_FORMAT__,elf |
|
2d6dc7de1145
From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
1166
diff
changeset
|
490 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
|
491 %endif |