Mercurial > sdl-ios-xcode
annotate src/hermes/mmxp2_32.asm @ 3847:3d247fe1c234 SDL-1.2
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 10 Jul 2006 21:03:59 +0000 |
| parents | eb4d9d99849b |
| children | 180fa05e98e2 |
| rev | line source |
|---|---|
| 0 | 1 ; |
| 2 ; pII-optimised MMX format converters for HERMES | |
| 3 ; Copyright (c) 1998 Christian Nentwich (c.nentwich@cs.ucl.ac.uk) | |
| 4 ; and (c) 1999 Jonathan Matthew (jmatthew@uq.net.au) | |
| 5 ; This source code is licensed under the GNU LGPL | |
| 6 ; | |
| 7 ; Please refer to the file COPYING.LIB contained in the distribution for | |
| 8 ; licensing conditions | |
| 9 ; | |
| 10 ; COPYRIGHT NOTICE | |
| 11 ; | |
| 12 ; This file partly contains code that is (c) Intel Corporation, specifically | |
| 13 ; the mode detection routine, and the converter to 15 bit (8 pixel | |
| 14 ; conversion routine from the mmx programming tutorial pages). | |
| 15 ; | |
| 16 ; | |
| 17 ; These routines aren't exactly pII optimised - it's just that as they | |
| 18 ; are, they're terrible on p5 MMXs, but less so on pIIs. Someone needs to | |
| 19 ; optimise them for p5 MMXs.. | |
| 20 | |
| 21 BITS 32 | |
| 22 | |
|
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23 %include "common.inc" |
| 0 | 24 |
| 1871 | 25 SDL_FUNC _ConvertMMXpII32_24RGB888 |
| 26 SDL_FUNC _ConvertMMXpII32_16RGB565 | |
| 27 SDL_FUNC _ConvertMMXpII32_16BGR565 | |
| 28 SDL_FUNC _ConvertMMXpII32_16RGB555 | |
| 29 SDL_FUNC _ConvertMMXpII32_16BGR555 | |
| 0 | 30 |
| 31 EXTERN _mmxreturn | |
| 32 | |
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33 ;; Macros for conversion routines |
| 0 | 34 |
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35 %macro _push_immq_mask 1 |
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36 push dword %1 |
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37 push dword %1 |
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38 %endmacro |
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40 %macro load_immq 2 |
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41 _push_immq_mask %2 |
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42 movq %1, [esp] |
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43 %endmacro |
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45 %macro pand_immq 2 |
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46 _push_immq_mask %2 |
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47 pand %1, [esp] |
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48 %endmacro |
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49 |
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50 %define CLEANUP_IMMQ_LOADS(num) \ |
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51 add esp, byte 8 * num |
| 0 | 52 |
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53 %define mmx32_rgb888_mask 00ffffffh |
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54 %define mmx32_rgb565_b 000000f8h |
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55 %define mmx32_rgb565_g 0000fc00h |
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56 %define mmx32_rgb565_r 00f80000h |
| 0 | 57 |
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58 %define mmx32_rgb555_rb 00f800f8h |
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59 %define mmx32_rgb555_g 0000f800h |
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60 %define mmx32_rgb555_mul 20000008h |
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61 %define mmx32_bgr555_mul 00082000h |
| 0 | 62 |
| 63 SECTION .text | |
| 64 | |
| 65 _ConvertMMXpII32_24RGB888: | |
| 66 | |
| 67 ; set up mm6 as the mask, mm7 as zero | |
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68 load_immq mm6, mmx32_rgb888_mask |
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69 CLEANUP_IMMQ_LOADS(1) |
| 0 | 70 pxor mm7, mm7 |
| 71 | |
| 72 mov edx, ecx ; save ecx | |
| 73 and ecx, 0fffffffch ; clear lower two bits | |
| 74 jnz .L1 | |
| 75 jmp .L2 | |
| 76 | |
| 77 .L1: | |
| 78 | |
| 79 movq mm0, [esi] ; A R G B a r g b | |
| 80 pand mm0, mm6 ; 0 R G B 0 r g b | |
| 81 movq mm1, [esi+8] ; A R G B a r g b | |
| 82 pand mm1, mm6 ; 0 R G B 0 r g b | |
| 83 | |
| 84 movq mm2, mm0 ; 0 R G B 0 r g b | |
| 85 punpckhdq mm2, mm7 ; 0 0 0 0 0 R G B | |
| 86 punpckldq mm0, mm7 ; 0 0 0 0 0 r g b | |
| 87 psllq mm2, 24 ; 0 0 R G B 0 0 0 | |
| 88 por mm0, mm2 ; 0 0 R G B r g b | |
| 89 | |
| 90 movq mm3, mm1 ; 0 R G B 0 r g b | |
| 91 psllq mm3, 48 ; g b 0 0 0 0 0 0 | |
| 92 por mm0, mm3 ; g b R G B r g b | |
| 93 | |
| 94 movq mm4, mm1 ; 0 R G B 0 r g b | |
| 95 punpckhdq mm4, mm7 ; 0 0 0 0 0 R G B | |
| 96 punpckldq mm1, mm7 ; 0 0 0 0 0 r g b | |
| 97 psrlq mm1, 16 ; 0 0 0 R G B 0 r | |
| 98 psllq mm4, 8 ; 0 0 0 0 R G B 0 | |
| 99 por mm1, mm4 ; 0 0 0 0 R G B r | |
| 100 | |
| 101 movq [edi], mm0 | |
| 102 add esi, BYTE 16 | |
| 103 movd [edi+8], mm1 | |
| 104 add edi, BYTE 12 | |
| 105 sub ecx, BYTE 4 | |
| 106 jnz .L1 | |
| 107 | |
| 108 .L2: | |
| 109 mov ecx, edx | |
| 110 and ecx, BYTE 3 | |
| 111 jz .L4 | |
| 112 .L3: | |
| 113 mov al, [esi] | |
| 114 mov bl, [esi+1] | |
| 115 mov dl, [esi+2] | |
| 116 mov [edi], al | |
| 117 mov [edi+1], bl | |
| 118 mov [edi+2], dl | |
| 119 add esi, BYTE 4 | |
| 120 add edi, BYTE 3 | |
| 121 dec ecx | |
| 122 jnz .L3 | |
| 123 .L4: | |
| 124 jmp _mmxreturn | |
| 125 | |
| 126 | |
| 127 | |
| 128 _ConvertMMXpII32_16RGB565: | |
| 129 | |
| 130 ; set up masks | |
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131 load_immq mm5, mmx32_rgb565_b |
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132 load_immq mm6, mmx32_rgb565_g |
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133 load_immq mm7, mmx32_rgb565_r |
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134 CLEANUP_IMMQ_LOADS(3) |
| 0 | 135 |
| 136 mov edx, ecx | |
| 137 shr ecx, 2 | |
| 138 jnz .L1 | |
| 139 jmp .L2 ; not necessary at the moment, but doesn't hurt (much) | |
| 140 | |
| 141 .L1: | |
| 142 movq mm0, [esi] ; argb | |
| 143 movq mm1, mm0 ; argb | |
| 144 pand mm0, mm6 ; 00g0 | |
| 145 movq mm3, mm1 ; argb | |
| 146 pand mm1, mm5 ; 000b | |
| 147 pand mm3, mm7 ; 0r00 | |
| 148 pslld mm1, 2 ; 0 0 000000bb bbb00000 | |
| 149 por mm0, mm1 ; 0 0 ggggggbb bbb00000 | |
| 150 psrld mm0, 5 ; 0 0 00000ggg gggbbbbb | |
| 151 | |
| 152 movq mm4, [esi+8] ; argb | |
| 153 movq mm2, mm4 ; argb | |
| 154 pand mm4, mm6 ; 00g0 | |
| 155 movq mm1, mm2 ; argb | |
| 156 pand mm2, mm5 ; 000b | |
| 157 pand mm1, mm7 ; 0r00 | |
| 158 pslld mm2, 2 ; 0 0 000000bb bbb00000 | |
| 159 por mm4, mm2 ; 0 0 ggggggbb bbb00000 | |
| 160 psrld mm4, 5 ; 0 0 00000ggg gggbbbbb | |
| 161 | |
| 162 packuswb mm3, mm1 ; R 0 r 0 | |
| 163 packssdw mm0, mm4 ; as above.. ish | |
| 164 por mm0, mm3 ; done. | |
| 165 movq [edi], mm0 | |
| 166 | |
| 167 add esi, 16 | |
| 168 add edi, 8 | |
| 169 dec ecx | |
| 170 jnz .L1 | |
| 171 | |
| 172 .L2: | |
| 173 mov ecx, edx | |
| 174 and ecx, BYTE 3 | |
| 175 jz .L4 | |
| 176 .L3: | |
| 177 mov al, [esi] | |
| 178 mov bh, [esi+1] | |
| 179 mov ah, [esi+2] | |
| 180 shr al, 3 | |
| 181 and eax, 0F81Fh ; BYTE? | |
| 182 shr ebx, 5 | |
| 183 and ebx, 07E0h ; BYTE? | |
| 184 add eax, ebx | |
| 185 mov [edi], al | |
| 186 mov [edi+1], ah | |
| 187 add esi, BYTE 4 | |
| 188 add edi, BYTE 2 | |
| 189 dec ecx | |
| 190 jnz .L3 | |
| 191 | |
| 192 .L4: | |
| 193 jmp _mmxreturn | |
| 194 | |
| 195 | |
| 196 _ConvertMMXpII32_16BGR565: | |
| 197 | |
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198 load_immq mm5, mmx32_rgb565_r |
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199 load_immq mm6, mmx32_rgb565_g |
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200 load_immq mm7, mmx32_rgb565_b |
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201 CLEANUP_IMMQ_LOADS(3) |
| 0 | 202 |
| 203 mov edx, ecx | |
| 204 shr ecx, 2 | |
| 205 jnz .L1 | |
| 206 jmp .L2 | |
| 207 | |
| 208 .L1: | |
| 209 movq mm0, [esi] ; a r g b | |
| 210 movq mm1, mm0 ; a r g b | |
| 211 pand mm0, mm6 ; 0 0 g 0 | |
| 212 movq mm3, mm1 ; a r g b | |
| 213 pand mm1, mm5 ; 0 r 0 0 | |
| 214 pand mm3, mm7 ; 0 0 0 b | |
| 215 | |
| 216 psllq mm3, 16 ; 0 b 0 0 | |
| 217 psrld mm1, 14 ; 0 0 000000rr rrr00000 | |
| 218 por mm0, mm1 ; 0 0 ggggggrr rrr00000 | |
| 219 psrld mm0, 5 ; 0 0 00000ggg gggrrrrr | |
| 220 | |
| 221 movq mm4, [esi+8] ; a r g b | |
| 222 movq mm2, mm4 ; a r g b | |
| 223 pand mm4, mm6 ; 0 0 g 0 | |
| 224 movq mm1, mm2 ; a r g b | |
| 225 pand mm2, mm5 ; 0 r 0 0 | |
| 226 pand mm1, mm7 ; 0 0 0 b | |
| 227 | |
| 228 psllq mm1, 16 ; 0 b 0 0 | |
| 229 psrld mm2, 14 ; 0 0 000000rr rrr00000 | |
| 230 por mm4, mm2 ; 0 0 ggggggrr rrr00000 | |
| 231 psrld mm4, 5 ; 0 0 00000ggg gggrrrrr | |
| 232 | |
| 233 packuswb mm3, mm1 ; BBBBB000 00000000 bbbbb000 00000000 | |
| 234 packssdw mm0, mm4 ; 00000GGG GGGRRRRR 00000GGG GGGRRRRR | |
| 235 por mm0, mm3 ; BBBBBGGG GGGRRRRR bbbbbggg gggrrrrr | |
| 236 movq [edi], mm0 | |
| 237 | |
| 238 add esi, BYTE 16 | |
| 239 add edi, BYTE 8 | |
| 240 dec ecx | |
| 241 jnz .L1 | |
| 242 | |
| 243 .L2: | |
| 244 and edx, BYTE 3 | |
| 245 jz .L4 | |
| 246 .L3: | |
| 247 mov al, [esi+2] | |
| 248 mov bh, [esi+1] | |
| 249 mov ah, [esi] | |
| 250 shr al, 3 | |
| 251 and eax, 0F81Fh ; BYTE ? | |
| 252 shr ebx, 5 | |
| 253 and ebx, 07E0h ; BYTE ? | |
| 254 add eax, ebx | |
| 255 mov [edi], al | |
| 256 mov [edi+1], ah | |
| 257 add esi, BYTE 4 | |
| 258 add edi, BYTE 2 | |
| 259 dec edx | |
| 260 jnz .L3 | |
| 261 | |
| 262 .L4: | |
| 263 jmp _mmxreturn | |
| 264 | |
| 265 _ConvertMMXpII32_16BGR555: | |
| 266 | |
| 267 ; the 16BGR555 converter is identical to the RGB555 one, | |
| 268 ; except it uses a different multiplier for the pmaddwd | |
| 269 ; instruction. cool huh. | |
| 270 | |
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271 load_immq mm7, mmx32_bgr555_mul |
| 0 | 272 jmp _convert_bgr555_cheat |
| 273 | |
| 274 ; This is the same as the Intel version.. they obviously went to | |
| 275 ; much more trouble to expand/coil the loop than I did, so theirs | |
| 276 ; would almost certainly be faster, even if only a little. | |
| 277 ; I did rename 'mmx32_rgb555_add' to 'mmx32_rgb555_mul', which is | |
| 278 ; (I think) a more accurate name.. | |
| 279 _ConvertMMXpII32_16RGB555: | |
| 280 | |
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281 load_immq mm7, mmx32_rgb555_mul |
| 0 | 282 _convert_bgr555_cheat: |
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283 load_immq mm6, mmx32_rgb555_g |
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284 CLEANUP_IMMQ_LOADS(2) |
| 0 | 285 |
| 286 mov edx,ecx ; Save ecx | |
| 287 | |
| 288 and ecx,BYTE 0fffffff8h ; clear lower three bits | |
| 289 jnz .L_OK | |
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289
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290 jmp near .L2 |
| 0 | 291 |
| 292 .L_OK: | |
| 293 | |
| 294 movq mm2,[esi+8] | |
| 295 | |
| 296 movq mm0,[esi] | |
| 297 movq mm3,mm2 | |
| 298 | |
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299 pand_immq mm3, mmx32_rgb555_rb |
| 0 | 300 movq mm1,mm0 |
| 301 | |
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302 pand_immq mm1, mmx32_rgb555_rb |
| 0 | 303 pmaddwd mm3,mm7 |
| 304 | |
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305 CLEANUP_IMMQ_LOADS(2) |
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306 |
| 0 | 307 pmaddwd mm1,mm7 |
| 308 pand mm2,mm6 | |
| 309 | |
| 310 .L1: | |
| 311 movq mm4,[esi+24] | |
| 312 pand mm0,mm6 | |
| 313 | |
| 314 movq mm5,[esi+16] | |
| 315 por mm3,mm2 | |
| 316 | |
| 317 psrld mm3,6 | |
| 318 por mm1,mm0 | |
| 319 | |
| 320 movq mm0,mm4 | |
| 321 psrld mm1,6 | |
| 322 | |
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323 pand_immq mm0, mmx32_rgb555_rb |
| 0 | 324 packssdw mm1,mm3 |
| 325 | |
| 326 movq mm3,mm5 | |
| 327 pmaddwd mm0,mm7 | |
| 328 | |
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329 pand_immq mm3, mmx32_rgb555_rb |
| 0 | 330 pand mm4,mm6 |
| 331 | |
| 332 movq [edi],mm1 | |
| 333 pmaddwd mm3,mm7 | |
| 334 | |
| 335 add esi,BYTE 32 | |
| 336 por mm4,mm0 | |
| 337 | |
| 338 pand mm5,mm6 | |
| 339 psrld mm4,6 | |
| 340 | |
| 341 movq mm2,[esi+8] | |
| 342 por mm5,mm3 | |
| 343 | |
| 344 movq mm0,[esi] | |
| 345 psrld mm5,6 | |
| 346 | |
| 347 movq mm3,mm2 | |
| 348 movq mm1,mm0 | |
| 349 | |
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350 pand_immq mm3, mmx32_rgb555_rb |
| 0 | 351 packssdw mm5,mm4 |
| 352 | |
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353 pand_immq mm1, mmx32_rgb555_rb |
| 0 | 354 pand mm2,mm6 |
| 355 | |
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356 CLEANUP_IMMQ_LOADS(4) |
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357 |
| 0 | 358 movq [edi+8],mm5 |
| 359 pmaddwd mm3,mm7 | |
| 360 | |
| 361 pmaddwd mm1,mm7 | |
| 362 add edi,BYTE 16 | |
| 363 | |
| 364 sub ecx,BYTE 8 | |
| 365 jz .L2 | |
| 366 jmp .L1 | |
| 367 | |
| 368 | |
| 369 .L2: | |
| 370 mov ecx,edx | |
| 371 | |
| 372 and ecx,BYTE 7 | |
| 373 jz .L4 | |
| 374 | |
| 375 .L3: | |
| 376 mov ebx,[esi] | |
| 377 add esi,BYTE 4 | |
| 378 | |
| 379 mov eax,ebx | |
| 380 mov edx,ebx | |
| 381 | |
| 382 shr eax,3 | |
| 383 shr edx,6 | |
| 384 | |
| 385 and eax,BYTE 0000000000011111b | |
| 386 and edx, 0000001111100000b | |
| 387 | |
| 388 shr ebx,9 | |
| 389 | |
| 390 or eax,edx | |
| 391 | |
| 392 and ebx, 0111110000000000b | |
| 393 | |
| 394 or eax,ebx | |
| 395 | |
| 396 mov [edi],ax | |
| 397 add edi,BYTE 2 | |
| 398 | |
| 399 dec ecx | |
| 400 jnz .L3 | |
| 401 | |
| 402 .L4: | |
| 403 jmp _mmxreturn | |
| 404 | |
|
1199
2d6dc7de1145
From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
1166
diff
changeset
|
405 %ifidn __OUTPUT_FORMAT__,elf |
|
2d6dc7de1145
From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
1166
diff
changeset
|
406 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
|
407 %endif |