Mercurial > sdl-ios-xcode
annotate src/hermes/mmxp2_32.asm @ 1690:43ba677b4f62 SDL-1.3
Fixed bug #241
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 20 Jun 2006 05:27:03 +0000 |
| parents | 88c2d6aed428 |
| children | 393092a3ebf6 |
| 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 | |
| 23 | |
| 24 GLOBAL _ConvertMMXpII32_24RGB888 | |
| 25 GLOBAL _ConvertMMXpII32_16RGB565 | |
| 26 GLOBAL _ConvertMMXpII32_16BGR565 | |
| 27 GLOBAL _ConvertMMXpII32_16RGB555 | |
| 28 GLOBAL _ConvertMMXpII32_16BGR555 | |
| 29 | |
| 30 EXTERN _mmxreturn | |
| 31 | |
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32 ;; Macros for conversion routines |
| 0 | 33 |
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34 %macro _push_immq_mask 1 |
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35 push dword %1 |
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36 push dword %1 |
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37 %endmacro |
| 0 | 38 |
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39 %macro load_immq 2 |
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40 _push_immq_mask %2 |
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41 movq %1, [esp] |
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42 %endmacro |
| 0 | 43 |
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44 %macro pand_immq 2 |
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45 _push_immq_mask %2 |
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46 pand %1, [esp] |
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47 %endmacro |
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48 |
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49 %define CLEANUP_IMMQ_LOADS(num) \ |
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50 add esp, byte 8 * num |
| 0 | 51 |
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52 %define mmx32_rgb888_mask 00ffffffh |
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53 %define mmx32_rgb565_b 000000f8h |
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54 %define mmx32_rgb565_g 0000fc00h |
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55 %define mmx32_rgb565_r 00f80000h |
| 0 | 56 |
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57 %define mmx32_rgb555_rb 00f800f8h |
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58 %define mmx32_rgb555_g 0000f800h |
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59 %define mmx32_rgb555_mul 20000008h |
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60 %define mmx32_bgr555_mul 00082000h |
| 0 | 61 |
| 62 SECTION .text | |
| 63 | |
| 64 _ConvertMMXpII32_24RGB888: | |
| 65 | |
| 66 ; set up mm6 as the mask, mm7 as zero | |
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67 load_immq mm6, mmx32_rgb888_mask |
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68 CLEANUP_IMMQ_LOADS(1) |
| 0 | 69 pxor mm7, mm7 |
| 70 | |
| 71 mov edx, ecx ; save ecx | |
| 72 and ecx, 0fffffffch ; clear lower two bits | |
| 73 jnz .L1 | |
| 74 jmp .L2 | |
| 75 | |
| 76 .L1: | |
| 77 | |
| 78 movq mm0, [esi] ; A R G B a r g b | |
| 79 pand mm0, mm6 ; 0 R G B 0 r g b | |
| 80 movq mm1, [esi+8] ; A R G B a r g b | |
| 81 pand mm1, mm6 ; 0 R G B 0 r g b | |
| 82 | |
| 83 movq mm2, mm0 ; 0 R G B 0 r g b | |
| 84 punpckhdq mm2, mm7 ; 0 0 0 0 0 R G B | |
| 85 punpckldq mm0, mm7 ; 0 0 0 0 0 r g b | |
| 86 psllq mm2, 24 ; 0 0 R G B 0 0 0 | |
| 87 por mm0, mm2 ; 0 0 R G B r g b | |
| 88 | |
| 89 movq mm3, mm1 ; 0 R G B 0 r g b | |
| 90 psllq mm3, 48 ; g b 0 0 0 0 0 0 | |
| 91 por mm0, mm3 ; g b R G B r g b | |
| 92 | |
| 93 movq mm4, mm1 ; 0 R G B 0 r g b | |
| 94 punpckhdq mm4, mm7 ; 0 0 0 0 0 R G B | |
| 95 punpckldq mm1, mm7 ; 0 0 0 0 0 r g b | |
| 96 psrlq mm1, 16 ; 0 0 0 R G B 0 r | |
| 97 psllq mm4, 8 ; 0 0 0 0 R G B 0 | |
| 98 por mm1, mm4 ; 0 0 0 0 R G B r | |
| 99 | |
| 100 movq [edi], mm0 | |
| 101 add esi, BYTE 16 | |
| 102 movd [edi+8], mm1 | |
| 103 add edi, BYTE 12 | |
| 104 sub ecx, BYTE 4 | |
| 105 jnz .L1 | |
| 106 | |
| 107 .L2: | |
| 108 mov ecx, edx | |
| 109 and ecx, BYTE 3 | |
| 110 jz .L4 | |
| 111 .L3: | |
| 112 mov al, [esi] | |
| 113 mov bl, [esi+1] | |
| 114 mov dl, [esi+2] | |
| 115 mov [edi], al | |
| 116 mov [edi+1], bl | |
| 117 mov [edi+2], dl | |
| 118 add esi, BYTE 4 | |
| 119 add edi, BYTE 3 | |
| 120 dec ecx | |
| 121 jnz .L3 | |
| 122 .L4: | |
| 123 jmp _mmxreturn | |
| 124 | |
| 125 | |
| 126 | |
| 127 _ConvertMMXpII32_16RGB565: | |
| 128 | |
| 129 ; set up masks | |
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130 load_immq mm5, mmx32_rgb565_b |
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131 load_immq mm6, mmx32_rgb565_g |
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132 load_immq mm7, mmx32_rgb565_r |
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133 CLEANUP_IMMQ_LOADS(3) |
| 0 | 134 |
| 135 mov edx, ecx | |
| 136 shr ecx, 2 | |
| 137 jnz .L1 | |
| 138 jmp .L2 ; not necessary at the moment, but doesn't hurt (much) | |
| 139 | |
| 140 .L1: | |
| 141 movq mm0, [esi] ; argb | |
| 142 movq mm1, mm0 ; argb | |
| 143 pand mm0, mm6 ; 00g0 | |
| 144 movq mm3, mm1 ; argb | |
| 145 pand mm1, mm5 ; 000b | |
| 146 pand mm3, mm7 ; 0r00 | |
| 147 pslld mm1, 2 ; 0 0 000000bb bbb00000 | |
| 148 por mm0, mm1 ; 0 0 ggggggbb bbb00000 | |
| 149 psrld mm0, 5 ; 0 0 00000ggg gggbbbbb | |
| 150 | |
| 151 movq mm4, [esi+8] ; argb | |
| 152 movq mm2, mm4 ; argb | |
| 153 pand mm4, mm6 ; 00g0 | |
| 154 movq mm1, mm2 ; argb | |
| 155 pand mm2, mm5 ; 000b | |
| 156 pand mm1, mm7 ; 0r00 | |
| 157 pslld mm2, 2 ; 0 0 000000bb bbb00000 | |
| 158 por mm4, mm2 ; 0 0 ggggggbb bbb00000 | |
| 159 psrld mm4, 5 ; 0 0 00000ggg gggbbbbb | |
| 160 | |
| 161 packuswb mm3, mm1 ; R 0 r 0 | |
| 162 packssdw mm0, mm4 ; as above.. ish | |
| 163 por mm0, mm3 ; done. | |
| 164 movq [edi], mm0 | |
| 165 | |
| 166 add esi, 16 | |
| 167 add edi, 8 | |
| 168 dec ecx | |
| 169 jnz .L1 | |
| 170 | |
| 171 .L2: | |
| 172 mov ecx, edx | |
| 173 and ecx, BYTE 3 | |
| 174 jz .L4 | |
| 175 .L3: | |
| 176 mov al, [esi] | |
| 177 mov bh, [esi+1] | |
| 178 mov ah, [esi+2] | |
| 179 shr al, 3 | |
| 180 and eax, 0F81Fh ; BYTE? | |
| 181 shr ebx, 5 | |
| 182 and ebx, 07E0h ; BYTE? | |
| 183 add eax, ebx | |
| 184 mov [edi], al | |
| 185 mov [edi+1], ah | |
| 186 add esi, BYTE 4 | |
| 187 add edi, BYTE 2 | |
| 188 dec ecx | |
| 189 jnz .L3 | |
| 190 | |
| 191 .L4: | |
| 192 jmp _mmxreturn | |
| 193 | |
| 194 | |
| 195 _ConvertMMXpII32_16BGR565: | |
| 196 | |
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197 load_immq mm5, mmx32_rgb565_r |
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198 load_immq mm6, mmx32_rgb565_g |
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199 load_immq mm7, mmx32_rgb565_b |
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200 CLEANUP_IMMQ_LOADS(3) |
| 0 | 201 |
| 202 mov edx, ecx | |
| 203 shr ecx, 2 | |
| 204 jnz .L1 | |
| 205 jmp .L2 | |
| 206 | |
| 207 .L1: | |
| 208 movq mm0, [esi] ; a r g b | |
| 209 movq mm1, mm0 ; a r g b | |
| 210 pand mm0, mm6 ; 0 0 g 0 | |
| 211 movq mm3, mm1 ; a r g b | |
| 212 pand mm1, mm5 ; 0 r 0 0 | |
| 213 pand mm3, mm7 ; 0 0 0 b | |
| 214 | |
| 215 psllq mm3, 16 ; 0 b 0 0 | |
| 216 psrld mm1, 14 ; 0 0 000000rr rrr00000 | |
| 217 por mm0, mm1 ; 0 0 ggggggrr rrr00000 | |
| 218 psrld mm0, 5 ; 0 0 00000ggg gggrrrrr | |
| 219 | |
| 220 movq mm4, [esi+8] ; a r g b | |
| 221 movq mm2, mm4 ; a r g b | |
| 222 pand mm4, mm6 ; 0 0 g 0 | |
| 223 movq mm1, mm2 ; a r g b | |
| 224 pand mm2, mm5 ; 0 r 0 0 | |
| 225 pand mm1, mm7 ; 0 0 0 b | |
| 226 | |
| 227 psllq mm1, 16 ; 0 b 0 0 | |
| 228 psrld mm2, 14 ; 0 0 000000rr rrr00000 | |
| 229 por mm4, mm2 ; 0 0 ggggggrr rrr00000 | |
| 230 psrld mm4, 5 ; 0 0 00000ggg gggrrrrr | |
| 231 | |
| 232 packuswb mm3, mm1 ; BBBBB000 00000000 bbbbb000 00000000 | |
| 233 packssdw mm0, mm4 ; 00000GGG GGGRRRRR 00000GGG GGGRRRRR | |
| 234 por mm0, mm3 ; BBBBBGGG GGGRRRRR bbbbbggg gggrrrrr | |
| 235 movq [edi], mm0 | |
| 236 | |
| 237 add esi, BYTE 16 | |
| 238 add edi, BYTE 8 | |
| 239 dec ecx | |
| 240 jnz .L1 | |
| 241 | |
| 242 .L2: | |
| 243 and edx, BYTE 3 | |
| 244 jz .L4 | |
| 245 .L3: | |
| 246 mov al, [esi+2] | |
| 247 mov bh, [esi+1] | |
| 248 mov ah, [esi] | |
| 249 shr al, 3 | |
| 250 and eax, 0F81Fh ; BYTE ? | |
| 251 shr ebx, 5 | |
| 252 and ebx, 07E0h ; BYTE ? | |
| 253 add eax, ebx | |
| 254 mov [edi], al | |
| 255 mov [edi+1], ah | |
| 256 add esi, BYTE 4 | |
| 257 add edi, BYTE 2 | |
| 258 dec edx | |
| 259 jnz .L3 | |
| 260 | |
| 261 .L4: | |
| 262 jmp _mmxreturn | |
| 263 | |
| 264 _ConvertMMXpII32_16BGR555: | |
| 265 | |
| 266 ; the 16BGR555 converter is identical to the RGB555 one, | |
| 267 ; except it uses a different multiplier for the pmaddwd | |
| 268 ; instruction. cool huh. | |
| 269 | |
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270 load_immq mm7, mmx32_bgr555_mul |
| 0 | 271 jmp _convert_bgr555_cheat |
| 272 | |
| 273 ; This is the same as the Intel version.. they obviously went to | |
| 274 ; much more trouble to expand/coil the loop than I did, so theirs | |
| 275 ; would almost certainly be faster, even if only a little. | |
| 276 ; I did rename 'mmx32_rgb555_add' to 'mmx32_rgb555_mul', which is | |
| 277 ; (I think) a more accurate name.. | |
| 278 _ConvertMMXpII32_16RGB555: | |
| 279 | |
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280 load_immq mm7, mmx32_rgb555_mul |
| 0 | 281 _convert_bgr555_cheat: |
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282 load_immq mm6, mmx32_rgb555_g |
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283 CLEANUP_IMMQ_LOADS(2) |
| 0 | 284 |
| 285 mov edx,ecx ; Save ecx | |
| 286 | |
| 287 and ecx,BYTE 0fffffff8h ; clear lower three bits | |
| 288 jnz .L_OK | |
|
289
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289 jmp near .L2 |
| 0 | 290 |
| 291 .L_OK: | |
| 292 | |
| 293 movq mm2,[esi+8] | |
| 294 | |
| 295 movq mm0,[esi] | |
| 296 movq mm3,mm2 | |
| 297 | |
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298 pand_immq mm3, mmx32_rgb555_rb |
| 0 | 299 movq mm1,mm0 |
| 300 | |
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301 pand_immq mm1, mmx32_rgb555_rb |
| 0 | 302 pmaddwd mm3,mm7 |
| 303 | |
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304 CLEANUP_IMMQ_LOADS(2) |
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305 |
| 0 | 306 pmaddwd mm1,mm7 |
| 307 pand mm2,mm6 | |
| 308 | |
| 309 .L1: | |
| 310 movq mm4,[esi+24] | |
| 311 pand mm0,mm6 | |
| 312 | |
| 313 movq mm5,[esi+16] | |
| 314 por mm3,mm2 | |
| 315 | |
| 316 psrld mm3,6 | |
| 317 por mm1,mm0 | |
| 318 | |
| 319 movq mm0,mm4 | |
| 320 psrld mm1,6 | |
| 321 | |
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322 pand_immq mm0, mmx32_rgb555_rb |
| 0 | 323 packssdw mm1,mm3 |
| 324 | |
| 325 movq mm3,mm5 | |
| 326 pmaddwd mm0,mm7 | |
| 327 | |
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328 pand_immq mm3, mmx32_rgb555_rb |
| 0 | 329 pand mm4,mm6 |
| 330 | |
| 331 movq [edi],mm1 | |
| 332 pmaddwd mm3,mm7 | |
| 333 | |
| 334 add esi,BYTE 32 | |
| 335 por mm4,mm0 | |
| 336 | |
| 337 pand mm5,mm6 | |
| 338 psrld mm4,6 | |
| 339 | |
| 340 movq mm2,[esi+8] | |
| 341 por mm5,mm3 | |
| 342 | |
| 343 movq mm0,[esi] | |
| 344 psrld mm5,6 | |
| 345 | |
| 346 movq mm3,mm2 | |
| 347 movq mm1,mm0 | |
| 348 | |
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349 pand_immq mm3, mmx32_rgb555_rb |
| 0 | 350 packssdw mm5,mm4 |
| 351 | |
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352 pand_immq mm1, mmx32_rgb555_rb |
| 0 | 353 pand mm2,mm6 |
| 354 | |
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355 CLEANUP_IMMQ_LOADS(4) |
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356 |
| 0 | 357 movq [edi+8],mm5 |
| 358 pmaddwd mm3,mm7 | |
| 359 | |
| 360 pmaddwd mm1,mm7 | |
| 361 add edi,BYTE 16 | |
| 362 | |
| 363 sub ecx,BYTE 8 | |
| 364 jz .L2 | |
| 365 jmp .L1 | |
| 366 | |
| 367 | |
| 368 .L2: | |
| 369 mov ecx,edx | |
| 370 | |
| 371 and ecx,BYTE 7 | |
| 372 jz .L4 | |
| 373 | |
| 374 .L3: | |
| 375 mov ebx,[esi] | |
| 376 add esi,BYTE 4 | |
| 377 | |
| 378 mov eax,ebx | |
| 379 mov edx,ebx | |
| 380 | |
| 381 shr eax,3 | |
| 382 shr edx,6 | |
| 383 | |
| 384 and eax,BYTE 0000000000011111b | |
| 385 and edx, 0000001111100000b | |
| 386 | |
| 387 shr ebx,9 | |
| 388 | |
| 389 or eax,edx | |
| 390 | |
| 391 and ebx, 0111110000000000b | |
| 392 | |
| 393 or eax,ebx | |
| 394 | |
| 395 mov [edi],ax | |
| 396 add edi,BYTE 2 | |
| 397 | |
| 398 dec ecx | |
| 399 jnz .L3 | |
| 400 | |
| 401 .L4: | |
| 402 jmp _mmxreturn | |
| 403 | |
|
1199
2d6dc7de1145
From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
1166
diff
changeset
|
404 %ifidn __OUTPUT_FORMAT__,elf |
|
2d6dc7de1145
From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
1166
diff
changeset
|
405 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
|
406 %endif |