Thu, 15 Jan 2015 15:59:08 +0100
Implement a real Private Browsing Mode condition by changing the API/ABI;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
michael@0 | 1 | ; |
michael@0 | 2 | ; Copyright (c) 2010 The WebM project authors. All Rights Reserved. |
michael@0 | 3 | ; |
michael@0 | 4 | ; Use of this source code is governed by a BSD-style license |
michael@0 | 5 | ; that can be found in the LICENSE file in the root of the source |
michael@0 | 6 | ; tree. An additional intellectual property rights grant can be found |
michael@0 | 7 | ; in the file PATENTS. All contributing project authors may |
michael@0 | 8 | ; be found in the AUTHORS file in the root of the source tree. |
michael@0 | 9 | ; |
michael@0 | 10 | |
michael@0 | 11 | %include "vpx_ports/x86_abi_support.asm" |
michael@0 | 12 | |
michael@0 | 13 | %macro STACK_FRAME_CREATE_X3 0 |
michael@0 | 14 | %if ABI_IS_32BIT |
michael@0 | 15 | %define src_ptr rsi |
michael@0 | 16 | %define src_stride rax |
michael@0 | 17 | %define ref_ptr rdi |
michael@0 | 18 | %define ref_stride rdx |
michael@0 | 19 | %define end_ptr rcx |
michael@0 | 20 | %define ret_var rbx |
michael@0 | 21 | %define result_ptr arg(4) |
michael@0 | 22 | %define max_err arg(4) |
michael@0 | 23 | %define height dword ptr arg(4) |
michael@0 | 24 | push rbp |
michael@0 | 25 | mov rbp, rsp |
michael@0 | 26 | push rsi |
michael@0 | 27 | push rdi |
michael@0 | 28 | push rbx |
michael@0 | 29 | |
michael@0 | 30 | mov rsi, arg(0) ; src_ptr |
michael@0 | 31 | mov rdi, arg(2) ; ref_ptr |
michael@0 | 32 | |
michael@0 | 33 | movsxd rax, dword ptr arg(1) ; src_stride |
michael@0 | 34 | movsxd rdx, dword ptr arg(3) ; ref_stride |
michael@0 | 35 | %else |
michael@0 | 36 | %if LIBVPX_YASM_WIN64 |
michael@0 | 37 | SAVE_XMM 7, u |
michael@0 | 38 | %define src_ptr rcx |
michael@0 | 39 | %define src_stride rdx |
michael@0 | 40 | %define ref_ptr r8 |
michael@0 | 41 | %define ref_stride r9 |
michael@0 | 42 | %define end_ptr r10 |
michael@0 | 43 | %define ret_var r11 |
michael@0 | 44 | %define result_ptr [rsp+xmm_stack_space+8+4*8] |
michael@0 | 45 | %define max_err [rsp+xmm_stack_space+8+4*8] |
michael@0 | 46 | %define height dword ptr [rsp+xmm_stack_space+8+4*8] |
michael@0 | 47 | %else |
michael@0 | 48 | %define src_ptr rdi |
michael@0 | 49 | %define src_stride rsi |
michael@0 | 50 | %define ref_ptr rdx |
michael@0 | 51 | %define ref_stride rcx |
michael@0 | 52 | %define end_ptr r9 |
michael@0 | 53 | %define ret_var r10 |
michael@0 | 54 | %define result_ptr r8 |
michael@0 | 55 | %define max_err r8 |
michael@0 | 56 | %define height r8 |
michael@0 | 57 | %endif |
michael@0 | 58 | %endif |
michael@0 | 59 | |
michael@0 | 60 | %endmacro |
michael@0 | 61 | |
michael@0 | 62 | %macro STACK_FRAME_DESTROY_X3 0 |
michael@0 | 63 | %define src_ptr |
michael@0 | 64 | %define src_stride |
michael@0 | 65 | %define ref_ptr |
michael@0 | 66 | %define ref_stride |
michael@0 | 67 | %define end_ptr |
michael@0 | 68 | %define ret_var |
michael@0 | 69 | %define result_ptr |
michael@0 | 70 | %define max_err |
michael@0 | 71 | %define height |
michael@0 | 72 | |
michael@0 | 73 | %if ABI_IS_32BIT |
michael@0 | 74 | pop rbx |
michael@0 | 75 | pop rdi |
michael@0 | 76 | pop rsi |
michael@0 | 77 | pop rbp |
michael@0 | 78 | %else |
michael@0 | 79 | %if LIBVPX_YASM_WIN64 |
michael@0 | 80 | RESTORE_XMM |
michael@0 | 81 | %endif |
michael@0 | 82 | %endif |
michael@0 | 83 | ret |
michael@0 | 84 | %endmacro |
michael@0 | 85 | |
michael@0 | 86 | %macro PROCESS_16X2X3 5 |
michael@0 | 87 | %if %1==0 |
michael@0 | 88 | movdqa xmm0, XMMWORD PTR [%2] |
michael@0 | 89 | lddqu xmm5, XMMWORD PTR [%3] |
michael@0 | 90 | lddqu xmm6, XMMWORD PTR [%3+1] |
michael@0 | 91 | lddqu xmm7, XMMWORD PTR [%3+2] |
michael@0 | 92 | |
michael@0 | 93 | psadbw xmm5, xmm0 |
michael@0 | 94 | psadbw xmm6, xmm0 |
michael@0 | 95 | psadbw xmm7, xmm0 |
michael@0 | 96 | %else |
michael@0 | 97 | movdqa xmm0, XMMWORD PTR [%2] |
michael@0 | 98 | lddqu xmm1, XMMWORD PTR [%3] |
michael@0 | 99 | lddqu xmm2, XMMWORD PTR [%3+1] |
michael@0 | 100 | lddqu xmm3, XMMWORD PTR [%3+2] |
michael@0 | 101 | |
michael@0 | 102 | psadbw xmm1, xmm0 |
michael@0 | 103 | psadbw xmm2, xmm0 |
michael@0 | 104 | psadbw xmm3, xmm0 |
michael@0 | 105 | |
michael@0 | 106 | paddw xmm5, xmm1 |
michael@0 | 107 | paddw xmm6, xmm2 |
michael@0 | 108 | paddw xmm7, xmm3 |
michael@0 | 109 | %endif |
michael@0 | 110 | movdqa xmm0, XMMWORD PTR [%2+%4] |
michael@0 | 111 | lddqu xmm1, XMMWORD PTR [%3+%5] |
michael@0 | 112 | lddqu xmm2, XMMWORD PTR [%3+%5+1] |
michael@0 | 113 | lddqu xmm3, XMMWORD PTR [%3+%5+2] |
michael@0 | 114 | |
michael@0 | 115 | %if %1==0 || %1==1 |
michael@0 | 116 | lea %2, [%2+%4*2] |
michael@0 | 117 | lea %3, [%3+%5*2] |
michael@0 | 118 | %endif |
michael@0 | 119 | |
michael@0 | 120 | psadbw xmm1, xmm0 |
michael@0 | 121 | psadbw xmm2, xmm0 |
michael@0 | 122 | psadbw xmm3, xmm0 |
michael@0 | 123 | |
michael@0 | 124 | paddw xmm5, xmm1 |
michael@0 | 125 | paddw xmm6, xmm2 |
michael@0 | 126 | paddw xmm7, xmm3 |
michael@0 | 127 | %endmacro |
michael@0 | 128 | |
michael@0 | 129 | %macro PROCESS_8X2X3 5 |
michael@0 | 130 | %if %1==0 |
michael@0 | 131 | movq mm0, QWORD PTR [%2] |
michael@0 | 132 | movq mm5, QWORD PTR [%3] |
michael@0 | 133 | movq mm6, QWORD PTR [%3+1] |
michael@0 | 134 | movq mm7, QWORD PTR [%3+2] |
michael@0 | 135 | |
michael@0 | 136 | psadbw mm5, mm0 |
michael@0 | 137 | psadbw mm6, mm0 |
michael@0 | 138 | psadbw mm7, mm0 |
michael@0 | 139 | %else |
michael@0 | 140 | movq mm0, QWORD PTR [%2] |
michael@0 | 141 | movq mm1, QWORD PTR [%3] |
michael@0 | 142 | movq mm2, QWORD PTR [%3+1] |
michael@0 | 143 | movq mm3, QWORD PTR [%3+2] |
michael@0 | 144 | |
michael@0 | 145 | psadbw mm1, mm0 |
michael@0 | 146 | psadbw mm2, mm0 |
michael@0 | 147 | psadbw mm3, mm0 |
michael@0 | 148 | |
michael@0 | 149 | paddw mm5, mm1 |
michael@0 | 150 | paddw mm6, mm2 |
michael@0 | 151 | paddw mm7, mm3 |
michael@0 | 152 | %endif |
michael@0 | 153 | movq mm0, QWORD PTR [%2+%4] |
michael@0 | 154 | movq mm1, QWORD PTR [%3+%5] |
michael@0 | 155 | movq mm2, QWORD PTR [%3+%5+1] |
michael@0 | 156 | movq mm3, QWORD PTR [%3+%5+2] |
michael@0 | 157 | |
michael@0 | 158 | %if %1==0 || %1==1 |
michael@0 | 159 | lea %2, [%2+%4*2] |
michael@0 | 160 | lea %3, [%3+%5*2] |
michael@0 | 161 | %endif |
michael@0 | 162 | |
michael@0 | 163 | psadbw mm1, mm0 |
michael@0 | 164 | psadbw mm2, mm0 |
michael@0 | 165 | psadbw mm3, mm0 |
michael@0 | 166 | |
michael@0 | 167 | paddw mm5, mm1 |
michael@0 | 168 | paddw mm6, mm2 |
michael@0 | 169 | paddw mm7, mm3 |
michael@0 | 170 | %endmacro |
michael@0 | 171 | |
michael@0 | 172 | ;void int vp9_sad16x16x3_sse3( |
michael@0 | 173 | ; unsigned char *src_ptr, |
michael@0 | 174 | ; int src_stride, |
michael@0 | 175 | ; unsigned char *ref_ptr, |
michael@0 | 176 | ; int ref_stride, |
michael@0 | 177 | ; int *results) |
michael@0 | 178 | global sym(vp9_sad16x16x3_sse3) PRIVATE |
michael@0 | 179 | sym(vp9_sad16x16x3_sse3): |
michael@0 | 180 | |
michael@0 | 181 | STACK_FRAME_CREATE_X3 |
michael@0 | 182 | |
michael@0 | 183 | PROCESS_16X2X3 0, src_ptr, ref_ptr, src_stride, ref_stride |
michael@0 | 184 | PROCESS_16X2X3 1, src_ptr, ref_ptr, src_stride, ref_stride |
michael@0 | 185 | PROCESS_16X2X3 1, src_ptr, ref_ptr, src_stride, ref_stride |
michael@0 | 186 | PROCESS_16X2X3 1, src_ptr, ref_ptr, src_stride, ref_stride |
michael@0 | 187 | PROCESS_16X2X3 1, src_ptr, ref_ptr, src_stride, ref_stride |
michael@0 | 188 | PROCESS_16X2X3 1, src_ptr, ref_ptr, src_stride, ref_stride |
michael@0 | 189 | PROCESS_16X2X3 1, src_ptr, ref_ptr, src_stride, ref_stride |
michael@0 | 190 | PROCESS_16X2X3 2, src_ptr, ref_ptr, src_stride, ref_stride |
michael@0 | 191 | |
michael@0 | 192 | mov rcx, result_ptr |
michael@0 | 193 | |
michael@0 | 194 | movq xmm0, xmm5 |
michael@0 | 195 | psrldq xmm5, 8 |
michael@0 | 196 | |
michael@0 | 197 | paddw xmm0, xmm5 |
michael@0 | 198 | movd [rcx], xmm0 |
michael@0 | 199 | ;- |
michael@0 | 200 | movq xmm0, xmm6 |
michael@0 | 201 | psrldq xmm6, 8 |
michael@0 | 202 | |
michael@0 | 203 | paddw xmm0, xmm6 |
michael@0 | 204 | movd [rcx+4], xmm0 |
michael@0 | 205 | ;- |
michael@0 | 206 | movq xmm0, xmm7 |
michael@0 | 207 | psrldq xmm7, 8 |
michael@0 | 208 | |
michael@0 | 209 | paddw xmm0, xmm7 |
michael@0 | 210 | movd [rcx+8], xmm0 |
michael@0 | 211 | |
michael@0 | 212 | STACK_FRAME_DESTROY_X3 |
michael@0 | 213 | |
michael@0 | 214 | ;void int vp9_sad16x8x3_sse3( |
michael@0 | 215 | ; unsigned char *src_ptr, |
michael@0 | 216 | ; int src_stride, |
michael@0 | 217 | ; unsigned char *ref_ptr, |
michael@0 | 218 | ; int ref_stride, |
michael@0 | 219 | ; int *results) |
michael@0 | 220 | global sym(vp9_sad16x8x3_sse3) PRIVATE |
michael@0 | 221 | sym(vp9_sad16x8x3_sse3): |
michael@0 | 222 | |
michael@0 | 223 | STACK_FRAME_CREATE_X3 |
michael@0 | 224 | |
michael@0 | 225 | PROCESS_16X2X3 0, src_ptr, ref_ptr, src_stride, ref_stride |
michael@0 | 226 | PROCESS_16X2X3 1, src_ptr, ref_ptr, src_stride, ref_stride |
michael@0 | 227 | PROCESS_16X2X3 1, src_ptr, ref_ptr, src_stride, ref_stride |
michael@0 | 228 | PROCESS_16X2X3 2, src_ptr, ref_ptr, src_stride, ref_stride |
michael@0 | 229 | |
michael@0 | 230 | mov rcx, result_ptr |
michael@0 | 231 | |
michael@0 | 232 | movq xmm0, xmm5 |
michael@0 | 233 | psrldq xmm5, 8 |
michael@0 | 234 | |
michael@0 | 235 | paddw xmm0, xmm5 |
michael@0 | 236 | movd [rcx], xmm0 |
michael@0 | 237 | ;- |
michael@0 | 238 | movq xmm0, xmm6 |
michael@0 | 239 | psrldq xmm6, 8 |
michael@0 | 240 | |
michael@0 | 241 | paddw xmm0, xmm6 |
michael@0 | 242 | movd [rcx+4], xmm0 |
michael@0 | 243 | ;- |
michael@0 | 244 | movq xmm0, xmm7 |
michael@0 | 245 | psrldq xmm7, 8 |
michael@0 | 246 | |
michael@0 | 247 | paddw xmm0, xmm7 |
michael@0 | 248 | movd [rcx+8], xmm0 |
michael@0 | 249 | |
michael@0 | 250 | STACK_FRAME_DESTROY_X3 |
michael@0 | 251 | |
michael@0 | 252 | ;void int vp9_sad8x16x3_sse3( |
michael@0 | 253 | ; unsigned char *src_ptr, |
michael@0 | 254 | ; int src_stride, |
michael@0 | 255 | ; unsigned char *ref_ptr, |
michael@0 | 256 | ; int ref_stride, |
michael@0 | 257 | ; int *results) |
michael@0 | 258 | global sym(vp9_sad8x16x3_sse3) PRIVATE |
michael@0 | 259 | sym(vp9_sad8x16x3_sse3): |
michael@0 | 260 | |
michael@0 | 261 | STACK_FRAME_CREATE_X3 |
michael@0 | 262 | |
michael@0 | 263 | PROCESS_8X2X3 0, src_ptr, ref_ptr, src_stride, ref_stride |
michael@0 | 264 | PROCESS_8X2X3 1, src_ptr, ref_ptr, src_stride, ref_stride |
michael@0 | 265 | PROCESS_8X2X3 1, src_ptr, ref_ptr, src_stride, ref_stride |
michael@0 | 266 | PROCESS_8X2X3 1, src_ptr, ref_ptr, src_stride, ref_stride |
michael@0 | 267 | PROCESS_8X2X3 1, src_ptr, ref_ptr, src_stride, ref_stride |
michael@0 | 268 | PROCESS_8X2X3 1, src_ptr, ref_ptr, src_stride, ref_stride |
michael@0 | 269 | PROCESS_8X2X3 1, src_ptr, ref_ptr, src_stride, ref_stride |
michael@0 | 270 | PROCESS_8X2X3 2, src_ptr, ref_ptr, src_stride, ref_stride |
michael@0 | 271 | |
michael@0 | 272 | mov rcx, result_ptr |
michael@0 | 273 | |
michael@0 | 274 | punpckldq mm5, mm6 |
michael@0 | 275 | |
michael@0 | 276 | movq [rcx], mm5 |
michael@0 | 277 | movd [rcx+8], mm7 |
michael@0 | 278 | |
michael@0 | 279 | STACK_FRAME_DESTROY_X3 |
michael@0 | 280 | |
michael@0 | 281 | ;void int vp9_sad8x8x3_sse3( |
michael@0 | 282 | ; unsigned char *src_ptr, |
michael@0 | 283 | ; int src_stride, |
michael@0 | 284 | ; unsigned char *ref_ptr, |
michael@0 | 285 | ; int ref_stride, |
michael@0 | 286 | ; int *results) |
michael@0 | 287 | global sym(vp9_sad8x8x3_sse3) PRIVATE |
michael@0 | 288 | sym(vp9_sad8x8x3_sse3): |
michael@0 | 289 | |
michael@0 | 290 | STACK_FRAME_CREATE_X3 |
michael@0 | 291 | |
michael@0 | 292 | PROCESS_8X2X3 0, src_ptr, ref_ptr, src_stride, ref_stride |
michael@0 | 293 | PROCESS_8X2X3 1, src_ptr, ref_ptr, src_stride, ref_stride |
michael@0 | 294 | PROCESS_8X2X3 1, src_ptr, ref_ptr, src_stride, ref_stride |
michael@0 | 295 | PROCESS_8X2X3 2, src_ptr, ref_ptr, src_stride, ref_stride |
michael@0 | 296 | |
michael@0 | 297 | mov rcx, result_ptr |
michael@0 | 298 | |
michael@0 | 299 | punpckldq mm5, mm6 |
michael@0 | 300 | |
michael@0 | 301 | movq [rcx], mm5 |
michael@0 | 302 | movd [rcx+8], mm7 |
michael@0 | 303 | |
michael@0 | 304 | STACK_FRAME_DESTROY_X3 |
michael@0 | 305 | |
michael@0 | 306 | ;void int vp9_sad4x4x3_sse3( |
michael@0 | 307 | ; unsigned char *src_ptr, |
michael@0 | 308 | ; int src_stride, |
michael@0 | 309 | ; unsigned char *ref_ptr, |
michael@0 | 310 | ; int ref_stride, |
michael@0 | 311 | ; int *results) |
michael@0 | 312 | global sym(vp9_sad4x4x3_sse3) PRIVATE |
michael@0 | 313 | sym(vp9_sad4x4x3_sse3): |
michael@0 | 314 | |
michael@0 | 315 | STACK_FRAME_CREATE_X3 |
michael@0 | 316 | |
michael@0 | 317 | movd mm0, DWORD PTR [src_ptr] |
michael@0 | 318 | movd mm1, DWORD PTR [ref_ptr] |
michael@0 | 319 | |
michael@0 | 320 | movd mm2, DWORD PTR [src_ptr+src_stride] |
michael@0 | 321 | movd mm3, DWORD PTR [ref_ptr+ref_stride] |
michael@0 | 322 | |
michael@0 | 323 | punpcklbw mm0, mm2 |
michael@0 | 324 | punpcklbw mm1, mm3 |
michael@0 | 325 | |
michael@0 | 326 | movd mm4, DWORD PTR [ref_ptr+1] |
michael@0 | 327 | movd mm5, DWORD PTR [ref_ptr+2] |
michael@0 | 328 | |
michael@0 | 329 | movd mm2, DWORD PTR [ref_ptr+ref_stride+1] |
michael@0 | 330 | movd mm3, DWORD PTR [ref_ptr+ref_stride+2] |
michael@0 | 331 | |
michael@0 | 332 | psadbw mm1, mm0 |
michael@0 | 333 | |
michael@0 | 334 | punpcklbw mm4, mm2 |
michael@0 | 335 | punpcklbw mm5, mm3 |
michael@0 | 336 | |
michael@0 | 337 | psadbw mm4, mm0 |
michael@0 | 338 | psadbw mm5, mm0 |
michael@0 | 339 | |
michael@0 | 340 | lea src_ptr, [src_ptr+src_stride*2] |
michael@0 | 341 | lea ref_ptr, [ref_ptr+ref_stride*2] |
michael@0 | 342 | |
michael@0 | 343 | movd mm0, DWORD PTR [src_ptr] |
michael@0 | 344 | movd mm2, DWORD PTR [ref_ptr] |
michael@0 | 345 | |
michael@0 | 346 | movd mm3, DWORD PTR [src_ptr+src_stride] |
michael@0 | 347 | movd mm6, DWORD PTR [ref_ptr+ref_stride] |
michael@0 | 348 | |
michael@0 | 349 | punpcklbw mm0, mm3 |
michael@0 | 350 | punpcklbw mm2, mm6 |
michael@0 | 351 | |
michael@0 | 352 | movd mm3, DWORD PTR [ref_ptr+1] |
michael@0 | 353 | movd mm7, DWORD PTR [ref_ptr+2] |
michael@0 | 354 | |
michael@0 | 355 | psadbw mm2, mm0 |
michael@0 | 356 | |
michael@0 | 357 | paddw mm1, mm2 |
michael@0 | 358 | |
michael@0 | 359 | movd mm2, DWORD PTR [ref_ptr+ref_stride+1] |
michael@0 | 360 | movd mm6, DWORD PTR [ref_ptr+ref_stride+2] |
michael@0 | 361 | |
michael@0 | 362 | punpcklbw mm3, mm2 |
michael@0 | 363 | punpcklbw mm7, mm6 |
michael@0 | 364 | |
michael@0 | 365 | psadbw mm3, mm0 |
michael@0 | 366 | psadbw mm7, mm0 |
michael@0 | 367 | |
michael@0 | 368 | paddw mm3, mm4 |
michael@0 | 369 | paddw mm7, mm5 |
michael@0 | 370 | |
michael@0 | 371 | mov rcx, result_ptr |
michael@0 | 372 | |
michael@0 | 373 | punpckldq mm1, mm3 |
michael@0 | 374 | |
michael@0 | 375 | movq [rcx], mm1 |
michael@0 | 376 | movd [rcx+8], mm7 |
michael@0 | 377 | |
michael@0 | 378 | STACK_FRAME_DESTROY_X3 |