Mercurial > sdl-ios-xcode
annotate src/hermes/mmxp2_32.asm @ 2134:180fa05e98e2
Merged r3106:3107 from branches/SDL-1.2: Hermes PIC fixes.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Wed, 27 Jun 2007 10:17:35 +0000 |
| parents | eb4d9d99849b |
| children | 15b4a74cdac1 |
| 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 |
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31 ;; Macros for conversion routines |
| 0 | 32 |
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33 %macro _push_immq_mask 1 |
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34 push dword %1 |
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35 push dword %1 |
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36 %endmacro |
| 0 | 37 |
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38 %macro load_immq 2 |
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39 _push_immq_mask %2 |
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40 movq %1, [esp] |
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41 %endmacro |
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43 %macro pand_immq 2 |
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44 _push_immq_mask %2 |
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45 pand %1, [esp] |
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46 %endmacro |
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47 |
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48 %define CLEANUP_IMMQ_LOADS(num) \ |
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49 add esp, byte 8 * num |
| 0 | 50 |
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51 %define mmx32_rgb888_mask 00ffffffh |
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52 %define mmx32_rgb565_b 000000f8h |
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53 %define mmx32_rgb565_g 0000fc00h |
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54 %define mmx32_rgb565_r 00f80000h |
| 0 | 55 |
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56 %define mmx32_rgb555_rb 00f800f8h |
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57 %define mmx32_rgb555_g 0000f800h |
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58 %define mmx32_rgb555_mul 20000008h |
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59 %define mmx32_bgr555_mul 00082000h |
| 0 | 60 |
| 61 SECTION .text | |
| 62 | |
| 63 _ConvertMMXpII32_24RGB888: | |
| 64 | |
| 65 ; set up mm6 as the mask, mm7 as zero | |
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66 load_immq mm6, mmx32_rgb888_mask |
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67 CLEANUP_IMMQ_LOADS(1) |
| 0 | 68 pxor mm7, mm7 |
| 69 | |
| 70 mov edx, ecx ; save ecx | |
| 71 and ecx, 0fffffffch ; clear lower two bits | |
| 72 jnz .L1 | |
| 73 jmp .L2 | |
| 74 | |
| 75 .L1: | |
| 76 | |
| 77 movq mm0, [esi] ; A R G B a r g b | |
| 78 pand mm0, mm6 ; 0 R G B 0 r g b | |
| 79 movq mm1, [esi+8] ; A R G B a r g b | |
| 80 pand mm1, mm6 ; 0 R G B 0 r g b | |
| 81 | |
| 82 movq mm2, mm0 ; 0 R G B 0 r g b | |
| 83 punpckhdq mm2, mm7 ; 0 0 0 0 0 R G B | |
| 84 punpckldq mm0, mm7 ; 0 0 0 0 0 r g b | |
| 85 psllq mm2, 24 ; 0 0 R G B 0 0 0 | |
| 86 por mm0, mm2 ; 0 0 R G B r g b | |
| 87 | |
| 88 movq mm3, mm1 ; 0 R G B 0 r g b | |
| 89 psllq mm3, 48 ; g b 0 0 0 0 0 0 | |
| 90 por mm0, mm3 ; g b R G B r g b | |
| 91 | |
| 92 movq mm4, mm1 ; 0 R G B 0 r g b | |
| 93 punpckhdq mm4, mm7 ; 0 0 0 0 0 R G B | |
| 94 punpckldq mm1, mm7 ; 0 0 0 0 0 r g b | |
| 95 psrlq mm1, 16 ; 0 0 0 R G B 0 r | |
| 96 psllq mm4, 8 ; 0 0 0 0 R G B 0 | |
| 97 por mm1, mm4 ; 0 0 0 0 R G B r | |
| 98 | |
| 99 movq [edi], mm0 | |
| 100 add esi, BYTE 16 | |
| 101 movd [edi+8], mm1 | |
| 102 add edi, BYTE 12 | |
| 103 sub ecx, BYTE 4 | |
| 104 jnz .L1 | |
| 105 | |
| 106 .L2: | |
| 107 mov ecx, edx | |
| 108 and ecx, BYTE 3 | |
| 109 jz .L4 | |
| 110 .L3: | |
| 111 mov al, [esi] | |
| 112 mov bl, [esi+1] | |
| 113 mov dl, [esi+2] | |
| 114 mov [edi], al | |
| 115 mov [edi+1], bl | |
| 116 mov [edi+2], dl | |
| 117 add esi, BYTE 4 | |
| 118 add edi, BYTE 3 | |
| 119 dec ecx | |
| 120 jnz .L3 | |
| 121 .L4: | |
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122 return |
| 0 | 123 |
| 124 | |
| 125 | |
| 126 _ConvertMMXpII32_16RGB565: | |
| 127 | |
| 128 ; set up masks | |
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129 load_immq mm5, mmx32_rgb565_b |
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130 load_immq mm6, mmx32_rgb565_g |
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131 load_immq mm7, mmx32_rgb565_r |
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132 CLEANUP_IMMQ_LOADS(3) |
| 0 | 133 |
| 134 mov edx, ecx | |
| 135 shr ecx, 2 | |
| 136 jnz .L1 | |
| 137 jmp .L2 ; not necessary at the moment, but doesn't hurt (much) | |
| 138 | |
| 139 .L1: | |
| 140 movq mm0, [esi] ; argb | |
| 141 movq mm1, mm0 ; argb | |
| 142 pand mm0, mm6 ; 00g0 | |
| 143 movq mm3, mm1 ; argb | |
| 144 pand mm1, mm5 ; 000b | |
| 145 pand mm3, mm7 ; 0r00 | |
| 146 pslld mm1, 2 ; 0 0 000000bb bbb00000 | |
| 147 por mm0, mm1 ; 0 0 ggggggbb bbb00000 | |
| 148 psrld mm0, 5 ; 0 0 00000ggg gggbbbbb | |
| 149 | |
| 150 movq mm4, [esi+8] ; argb | |
| 151 movq mm2, mm4 ; argb | |
| 152 pand mm4, mm6 ; 00g0 | |
| 153 movq mm1, mm2 ; argb | |
| 154 pand mm2, mm5 ; 000b | |
| 155 pand mm1, mm7 ; 0r00 | |
| 156 pslld mm2, 2 ; 0 0 000000bb bbb00000 | |
| 157 por mm4, mm2 ; 0 0 ggggggbb bbb00000 | |
| 158 psrld mm4, 5 ; 0 0 00000ggg gggbbbbb | |
| 159 | |
| 160 packuswb mm3, mm1 ; R 0 r 0 | |
| 161 packssdw mm0, mm4 ; as above.. ish | |
| 162 por mm0, mm3 ; done. | |
| 163 movq [edi], mm0 | |
| 164 | |
| 165 add esi, 16 | |
| 166 add edi, 8 | |
| 167 dec ecx | |
| 168 jnz .L1 | |
| 169 | |
| 170 .L2: | |
| 171 mov ecx, edx | |
| 172 and ecx, BYTE 3 | |
| 173 jz .L4 | |
| 174 .L3: | |
| 175 mov al, [esi] | |
| 176 mov bh, [esi+1] | |
| 177 mov ah, [esi+2] | |
| 178 shr al, 3 | |
| 179 and eax, 0F81Fh ; BYTE? | |
| 180 shr ebx, 5 | |
| 181 and ebx, 07E0h ; BYTE? | |
| 182 add eax, ebx | |
| 183 mov [edi], al | |
| 184 mov [edi+1], ah | |
| 185 add esi, BYTE 4 | |
| 186 add edi, BYTE 2 | |
| 187 dec ecx | |
| 188 jnz .L3 | |
| 189 | |
| 190 .L4: | |
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191 retn |
| 0 | 192 |
| 193 | |
| 194 _ConvertMMXpII32_16BGR565: | |
| 195 | |
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196 load_immq mm5, mmx32_rgb565_r |
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197 load_immq mm6, mmx32_rgb565_g |
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198 load_immq mm7, mmx32_rgb565_b |
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199 CLEANUP_IMMQ_LOADS(3) |
| 0 | 200 |
| 201 mov edx, ecx | |
| 202 shr ecx, 2 | |
| 203 jnz .L1 | |
| 204 jmp .L2 | |
| 205 | |
| 206 .L1: | |
| 207 movq mm0, [esi] ; a r g b | |
| 208 movq mm1, mm0 ; a r g b | |
| 209 pand mm0, mm6 ; 0 0 g 0 | |
| 210 movq mm3, mm1 ; a r g b | |
| 211 pand mm1, mm5 ; 0 r 0 0 | |
| 212 pand mm3, mm7 ; 0 0 0 b | |
| 213 | |
| 214 psllq mm3, 16 ; 0 b 0 0 | |
| 215 psrld mm1, 14 ; 0 0 000000rr rrr00000 | |
| 216 por mm0, mm1 ; 0 0 ggggggrr rrr00000 | |
| 217 psrld mm0, 5 ; 0 0 00000ggg gggrrrrr | |
| 218 | |
| 219 movq mm4, [esi+8] ; a r g b | |
| 220 movq mm2, mm4 ; a r g b | |
| 221 pand mm4, mm6 ; 0 0 g 0 | |
| 222 movq mm1, mm2 ; a r g b | |
| 223 pand mm2, mm5 ; 0 r 0 0 | |
| 224 pand mm1, mm7 ; 0 0 0 b | |
| 225 | |
| 226 psllq mm1, 16 ; 0 b 0 0 | |
| 227 psrld mm2, 14 ; 0 0 000000rr rrr00000 | |
| 228 por mm4, mm2 ; 0 0 ggggggrr rrr00000 | |
| 229 psrld mm4, 5 ; 0 0 00000ggg gggrrrrr | |
| 230 | |
| 231 packuswb mm3, mm1 ; BBBBB000 00000000 bbbbb000 00000000 | |
| 232 packssdw mm0, mm4 ; 00000GGG GGGRRRRR 00000GGG GGGRRRRR | |
| 233 por mm0, mm3 ; BBBBBGGG GGGRRRRR bbbbbggg gggrrrrr | |
| 234 movq [edi], mm0 | |
| 235 | |
| 236 add esi, BYTE 16 | |
| 237 add edi, BYTE 8 | |
| 238 dec ecx | |
| 239 jnz .L1 | |
| 240 | |
| 241 .L2: | |
| 242 and edx, BYTE 3 | |
| 243 jz .L4 | |
| 244 .L3: | |
| 245 mov al, [esi+2] | |
| 246 mov bh, [esi+1] | |
| 247 mov ah, [esi] | |
| 248 shr al, 3 | |
| 249 and eax, 0F81Fh ; BYTE ? | |
| 250 shr ebx, 5 | |
| 251 and ebx, 07E0h ; BYTE ? | |
| 252 add eax, ebx | |
| 253 mov [edi], al | |
| 254 mov [edi+1], ah | |
| 255 add esi, BYTE 4 | |
| 256 add edi, BYTE 2 | |
| 257 dec edx | |
| 258 jnz .L3 | |
| 259 | |
| 260 .L4: | |
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261 retn |
| 0 | 262 |
| 263 _ConvertMMXpII32_16BGR555: | |
| 264 | |
| 265 ; the 16BGR555 converter is identical to the RGB555 one, | |
| 266 ; except it uses a different multiplier for the pmaddwd | |
| 267 ; instruction. cool huh. | |
| 268 | |
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269 load_immq mm7, mmx32_bgr555_mul |
| 0 | 270 jmp _convert_bgr555_cheat |
| 271 | |
| 272 ; This is the same as the Intel version.. they obviously went to | |
| 273 ; much more trouble to expand/coil the loop than I did, so theirs | |
| 274 ; would almost certainly be faster, even if only a little. | |
| 275 ; I did rename 'mmx32_rgb555_add' to 'mmx32_rgb555_mul', which is | |
| 276 ; (I think) a more accurate name.. | |
| 277 _ConvertMMXpII32_16RGB555: | |
| 278 | |
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279 load_immq mm7, mmx32_rgb555_mul |
| 0 | 280 _convert_bgr555_cheat: |
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281 load_immq mm6, mmx32_rgb555_g |
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282 CLEANUP_IMMQ_LOADS(2) |
| 0 | 283 |
| 284 mov edx,ecx ; Save ecx | |
| 285 | |
| 286 and ecx,BYTE 0fffffff8h ; clear lower three bits | |
| 287 jnz .L_OK | |
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288 jmp near .L2 |
| 0 | 289 |
| 290 .L_OK: | |
| 291 | |
| 292 movq mm2,[esi+8] | |
| 293 | |
| 294 movq mm0,[esi] | |
| 295 movq mm3,mm2 | |
| 296 | |
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297 pand_immq mm3, mmx32_rgb555_rb |
| 0 | 298 movq mm1,mm0 |
| 299 | |
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300 pand_immq mm1, mmx32_rgb555_rb |
| 0 | 301 pmaddwd mm3,mm7 |
| 302 | |
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303 CLEANUP_IMMQ_LOADS(2) |
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304 |
| 0 | 305 pmaddwd mm1,mm7 |
| 306 pand mm2,mm6 | |
| 307 | |
| 308 .L1: | |
| 309 movq mm4,[esi+24] | |
| 310 pand mm0,mm6 | |
| 311 | |
| 312 movq mm5,[esi+16] | |
| 313 por mm3,mm2 | |
| 314 | |
| 315 psrld mm3,6 | |
| 316 por mm1,mm0 | |
| 317 | |
| 318 movq mm0,mm4 | |
| 319 psrld mm1,6 | |
| 320 | |
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321 pand_immq mm0, mmx32_rgb555_rb |
| 0 | 322 packssdw mm1,mm3 |
| 323 | |
| 324 movq mm3,mm5 | |
| 325 pmaddwd mm0,mm7 | |
| 326 | |
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327 pand_immq mm3, mmx32_rgb555_rb |
| 0 | 328 pand mm4,mm6 |
| 329 | |
| 330 movq [edi],mm1 | |
| 331 pmaddwd mm3,mm7 | |
| 332 | |
| 333 add esi,BYTE 32 | |
| 334 por mm4,mm0 | |
| 335 | |
| 336 pand mm5,mm6 | |
| 337 psrld mm4,6 | |
| 338 | |
| 339 movq mm2,[esi+8] | |
| 340 por mm5,mm3 | |
| 341 | |
| 342 movq mm0,[esi] | |
| 343 psrld mm5,6 | |
| 344 | |
| 345 movq mm3,mm2 | |
| 346 movq mm1,mm0 | |
| 347 | |
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348 pand_immq mm3, mmx32_rgb555_rb |
| 0 | 349 packssdw mm5,mm4 |
| 350 | |
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351 pand_immq mm1, mmx32_rgb555_rb |
| 0 | 352 pand mm2,mm6 |
| 353 | |
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354 CLEANUP_IMMQ_LOADS(4) |
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Ryan C. Gordon <icculus@icculus.org>
parents:
1199
diff
changeset
|
355 |
| 0 | 356 movq [edi+8],mm5 |
| 357 pmaddwd mm3,mm7 | |
| 358 | |
| 359 pmaddwd mm1,mm7 | |
| 360 add edi,BYTE 16 | |
| 361 | |
| 362 sub ecx,BYTE 8 | |
| 363 jz .L2 | |
| 364 jmp .L1 | |
| 365 | |
| 366 | |
| 367 .L2: | |
| 368 mov ecx,edx | |
| 369 | |
| 370 and ecx,BYTE 7 | |
| 371 jz .L4 | |
| 372 | |
| 373 .L3: | |
| 374 mov ebx,[esi] | |
| 375 add esi,BYTE 4 | |
| 376 | |
| 377 mov eax,ebx | |
| 378 mov edx,ebx | |
| 379 | |
| 380 shr eax,3 | |
| 381 shr edx,6 | |
| 382 | |
| 383 and eax,BYTE 0000000000011111b | |
| 384 and edx, 0000001111100000b | |
| 385 | |
| 386 shr ebx,9 | |
| 387 | |
| 388 or eax,edx | |
| 389 | |
| 390 and ebx, 0111110000000000b | |
| 391 | |
| 392 or eax,ebx | |
| 393 | |
| 394 mov [edi],ax | |
| 395 add edi,BYTE 2 | |
| 396 | |
| 397 dec ecx | |
| 398 jnz .L3 | |
| 399 | |
| 400 .L4: | |
|
2134
180fa05e98e2
Merged r3106:3107 from branches/SDL-1.2: Hermes PIC fixes.
Ryan C. Gordon <icculus@icculus.org>
parents:
1873
diff
changeset
|
401 retn |
| 0 | 402 |
|
1199
2d6dc7de1145
From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
1166
diff
changeset
|
403 %ifidn __OUTPUT_FORMAT__,elf |
|
2d6dc7de1145
From: Mike Frysinger <vapier@gentoo.org>
Ryan C. Gordon <icculus@icculus.org>
parents:
1166
diff
changeset
|
404 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
|
405 %endif |