vp8dsp_armv6.S (64296B)
1 /* 2 * VP8 ARMv6 optimisations 3 * 4 * Copyright (c) 2010 Google Inc. 5 * Copyright (c) 2010 Rob Clark <rob@ti.com> 6 * Copyright (c) 2011 Mans Rullgard <mans@mansr.com> 7 * 8 * This file is part of FFmpeg. 9 * 10 * FFmpeg is free software; you can redistribute it and/or 11 * modify it under the terms of the GNU Lesser General Public 12 * License as published by the Free Software Foundation; either 13 * version 2.1 of the License, or (at your option) any later version. 14 * 15 * FFmpeg is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18 * Lesser General Public License for more details. 19 * 20 * You should have received a copy of the GNU Lesser General Public 21 * License along with FFmpeg; if not, write to the Free Software 22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 23 * 24 * This code was partially ported from libvpx, which uses this license: 25 * 26 * Redistribution and use in source and binary forms, with or without 27 * modification, are permitted provided that the following conditions are 28 * met: 29 * 30 * * Redistributions of source code must retain the above copyright 31 * notice, this list of conditions and the following disclaimer. 32 * 33 * * Redistributions in binary form must reproduce the above copyright 34 * notice, this list of conditions and the following disclaimer in 35 * the documentation and/or other materials provided with the 36 * distribution. 37 * 38 * * Neither the name of Google nor the names of its contributors may 39 * be used to endorse or promote products derived from this software 40 * without specific prior written permission. 41 * 42 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 43 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 44 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 45 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 46 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 47 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 48 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 49 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 50 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 51 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 52 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 53 */ 54 55 #include "libavutil/arm/asm.S" 56 57 @ idct 58 59 @ void vp8_luma_dc_wht(int16_t block[4][4][16], int16_t dc[16]) 60 function ff_vp8_luma_dc_wht_armv6, export=1 61 push {r4-r10, lr} 62 63 ldm r1, {r2-r9} 64 mov r10, #0 65 mov lr, #0 66 uadd16 r12, r2, r8 @ t0[0,1] 67 usub16 r2, r2, r8 @ t3[0,1] 68 stm r1!, {r10, lr} 69 uadd16 r8, r4, r6 @ t1[0,1] 70 usub16 r4, r4, r6 @ t2[0,1] 71 stm r1!, {r10, lr} 72 uadd16 r6, r12, r8 @ dc0[0,1] 73 usub16 r12, r12, r8 @ dc2[0,1] 74 stm r1!, {r10, lr} 75 uadd16 r8, r2, r4 @ dc1[0,1] 76 usub16 r2, r2, r4 @ dc3[0,1] 77 stm r1!, {r10, lr} 78 79 uadd16 lr, r3, r9 @ t0[2,3] 80 usub16 r3, r3, r9 @ t3[2,3] 81 uadd16 r9, r5, r7 @ t1[2,3] 82 usub16 r5, r5, r7 @ t2[2,3] 83 84 uadd16 r7, lr, r9 @ dc0[2,3] 85 usub16 lr, lr, r9 @ dc2[2,3] 86 uadd16 r9, r3, r5 @ dc1[2,3] 87 usub16 r3, r3, r5 @ dc3[2,3] 88 89 mov r1, #3 90 orr r1, r1, #0x30000 @ 3 | 3 (round) 91 92 pkhbt r4, r6, r8, lsl #16 @ dc{0,1}[0] 93 pkhtb r6, r8, r6, asr #16 @ dc{0,1}[1] 94 pkhbt r5, r12, r2, lsl #16 @ dc{2,3}[0] 95 pkhtb r12, r2, r12, asr #16 @ dc{2,3}[1] 96 pkhbt r8, r7, r9, lsl #16 @ dc{0,1}[2] 97 uadd16 r4, r4, r1 98 uadd16 r5, r5, r1 99 pkhtb r7, r9, r7, asr #16 @ dc{0,1}[3] 100 pkhbt r2, lr, r3, lsl #16 @ dc{2,3}[2] 101 pkhtb lr, r3, lr, asr #16 @ dc{2,3}[3] 102 103 uadd16 r9, r4, r7 @ t0[0,1] 104 uadd16 r3, r5, lr @ t0[2,3] 105 usub16 r4, r4, r7 @ t3[0,1] 106 usub16 r5, r5, lr @ t3[2,3] 107 uadd16 r7, r6, r8 @ t1[0,1] 108 uadd16 lr, r12, r2 @ t1[2,3] 109 usub16 r6, r6, r8 @ t2[0,1] 110 usub16 r12, r12, r2 @ t2[2,3] 111 112 uadd16 r8, r9, r7 @ block[0,1][0] 113 uadd16 r2, r3, lr @ block[2,3][0] 114 usub16 r9, r9, r7 @ block[0,1][2] 115 usub16 r3, r3, lr @ block[2,3][2] 116 uadd16 r7, r4, r6 @ block[0,1][1] 117 uadd16 lr, r5, r12 @ block[2,3][1] 118 usub16 r4, r4, r6 @ block[0,1][3] 119 usub16 r5, r5, r12 @ block[2,3][3] 120 121 #if HAVE_ARMV6T2_EXTERNAL 122 sbfx r6, r8, #3, #13 123 sbfx r12, r7, #3, #13 124 sbfx r1, r9, #3, #13 125 sbfx r10, r4, #3, #13 126 #else 127 sxth r6, r8 128 sxth r12, r7 129 sxth r1, r9 130 sxth r10, r4 131 asr r6, #3 @ block[0][0] 132 asr r12, #3 @ block[0][1] 133 asr r1, #3 @ block[0][2] 134 asr r10, #3 @ block[0][3] 135 #endif 136 137 strh r6, [r0], #32 138 asr r8, r8, #19 @ block[1][0] 139 strh r12, [r0], #32 140 asr r7, r7, #19 @ block[1][1] 141 strh r1, [r0], #32 142 asr r9, r9, #19 @ block[1][2] 143 strh r10, [r0], #32 144 asr r4, r4, #19 @ block[1][3] 145 strh r8, [r0], #32 146 asr r6, r2, #19 @ block[3][0] 147 strh r7, [r0], #32 148 asr r12, lr, #19 @ block[3][1] 149 strh r9, [r0], #32 150 asr r1, r3, #19 @ block[3][2] 151 strh r4, [r0], #32 152 asr r10, r5, #19 @ block[3][3] 153 154 #if HAVE_ARMV6T2_EXTERNAL 155 sbfx r2, r2, #3, #13 156 sbfx lr, lr, #3, #13 157 sbfx r3, r3, #3, #13 158 sbfx r5, r5, #3, #13 159 #else 160 sxth r2, r2 161 sxth lr, lr 162 sxth r3, r3 163 sxth r5, r5 164 asr r2, #3 @ block[2][0] 165 asr lr, #3 @ block[2][1] 166 asr r3, #3 @ block[2][2] 167 asr r5, #3 @ block[2][3] 168 #endif 169 170 strh r2, [r0], #32 171 strh lr, [r0], #32 172 strh r3, [r0], #32 173 strh r5, [r0], #32 174 strh r6, [r0], #32 175 strh r12, [r0], #32 176 strh r1, [r0], #32 177 strh r10, [r0], #32 178 179 pop {r4-r10, pc} 180 endfunc 181 182 @ void vp8_luma_dc_wht_dc(int16_t block[4][4][16], int16_t dc[16]) 183 function ff_vp8_luma_dc_wht_dc_armv6, export=1 184 ldrsh r2, [r1] 185 mov r3, #0 186 add r2, r2, #3 187 strh r3, [r1] 188 asr r2, r2, #3 189 .rept 16 190 strh r2, [r0], #32 191 .endr 192 bx lr 193 endfunc 194 195 @ void vp8_idct_add(uint8_t *dst, int16_t block[16], ptrdiff_t stride) 196 function ff_vp8_idct_add_armv6, export=1 197 push {r4-r12, lr} 198 sub sp, sp, #32 199 200 movw r3, #20091 @ cospi8sqrt2minus1 201 movw r4, #35468 @ sinpi8sqrt2 202 mov r5, sp 203 1: 204 ldr r6, [r1, #8] @ i5 | i4 = block1[1] | block1[0] 205 ldr lr, [r1, #16] @ i9 | i8 = block2[1] | block2[0] 206 ldr r12, [r1, #24] @ i13 | i12 = block3[1] | block3[0] 207 208 smulwt r9, r3, r6 @ ip[5] * cospi8sqrt2minus1 209 smulwb r7, r3, r6 @ ip[4] * cospi8sqrt2minus1 210 smulwt r10, r4, r6 @ ip[5] * sinpi8sqrt2 211 smulwb r8, r4, r6 @ ip[4] * sinpi8sqrt2 212 pkhbt r7, r7, r9, lsl #16 @ 5c | 4c 213 smulwt r11, r3, r12 @ ip[13] * cospi8sqrt2minus1 214 pkhbt r8, r8, r10, lsl #16 @ 5s | 4s = t2 first half 215 uadd16 r6, r6, r7 @ 5c+5 | 4c+4 = t3 first half 216 smulwb r9, r3, r12 @ ip[12] * cospi8sqrt2minus1 217 smulwt r7, r4, r12 @ ip[13] * sinpi8sqrt2 218 smulwb r10, r4, r12 @ ip[12] * sinpi8sqrt2 219 220 pkhbt r9, r9, r11, lsl #16 @ 13c | 12c 221 ldr r11, [r1] @ i1 | i0 222 pkhbt r10, r10, r7, lsl #16 @ 13s | 12s = t3 second half 223 uadd16 r7, r12, r9 @ 13c+13 | 12c+12 = t2 2nd half 224 uadd16 r6, r6, r10 @ d = t3 225 uadd16 r10, r11, lr @ a = t0 226 usub16 r7, r8, r7 @ c = t2 227 usub16 r8, r11, lr @ b = t1 228 uadd16 r9, r10, r6 @ a+d = tmp{0,1}[0] 229 usub16 r10, r10, r6 @ a-d = tmp{0,1}[3] 230 uadd16 r6, r8, r7 @ b+c = tmp{0,1}[1] 231 usub16 r7, r8, r7 @ b-c = tmp{0,1}[2] 232 mov r8, #0 233 cmp sp, r5 234 str r6, [r5, #8] @ o5 | o4 235 str r7, [r5, #16] @ o9 | o8 236 str r10, [r5, #24] @ o13 | o12 237 str r9, [r5], #4 @ o1 | o0 238 str r8, [r1, #8] 239 str r8, [r1, #16] 240 str r8, [r1, #24] 241 str r8, [r1], #4 242 beq 1b 243 244 mov r5, #2 245 2: 246 pop {r1, r6, r12, lr} 247 smulwt r9, r3, r12 @ ip[5] * cospi8sqrt2minus1 248 smulwt r7, r3, r1 @ ip[1] * cospi8sqrt2minus1 249 smulwt r10, r4, r12 @ ip[5] * sinpi8sqrt2 250 smulwt r8, r4, r1 @ ip[1] * sinpi8sqrt2 251 pkhbt r11, r1, r12, lsl #16 @ i4 | i0 = t0/t1 first half 252 pkhtb r1, r12, r1, asr #16 @ i5 | i1 253 pkhbt r7, r7, r9, lsl #16 @ 5c | 1c 254 pkhbt r8, r8, r10, lsl #16 @ 5s | 1s = t2 first half 255 pkhbt r9, r6, lr, lsl #16 @ i6 | i2 = t0/t1 second half 256 pkhtb r12, lr, r6, asr #16 @ i7 | i3 257 uadd16 r1, r7, r1 @ 5c+5 | 1c+1 = t3 first half 258 uadd16 r10, r11, r9 @ a = t0 259 usub16 r9, r11, r9 @ b = t1 260 smulwt r7, r3, r12 @ ip[7] * cospi8sqrt2minus1 261 smulwb lr, r3, r12 @ ip[3] * cospi8sqrt2minus1 262 smulwt r11, r4, r12 @ ip[7] * sinpi8sqrt2 263 smulwb r6, r4, r12 @ ip[3] * sinpi8sqrt2 264 subs r5, r5, #1 265 pkhbt r7, lr, r7, lsl #16 @ 7c | 3c 266 pkhbt r11, r6, r11, lsl #16 @ 7s | 3s = t3 second half 267 mov r6, #0x4 268 orr r6, r6, #0x40000 269 uadd16 r12, r7, r12 @ 7c+7 | 3c+3 = t2 second half 270 uadd16 r10, r10, r6 @ t0 + 4 271 uadd16 r9, r9, r6 @ t1 + 4 272 usub16 lr, r8, r12 @ c (o5 | o1) = t2 273 uadd16 r12, r11, r1 @ d (o7 | o3) = t3 274 usub16 r1, r9, lr @ b-c = dst{0,1}[2] 275 uadd16 r7, r10, r12 @ a+d = dst{0,1}[0] 276 usub16 r12, r10, r12 @ a-d = dst{0,1}[3] 277 uadd16 r10, r9, lr @ b+c = dst{0,1}[1] 278 279 asr lr, r1, #3 @ o[1][2] 280 asr r9, r12, #3 @ o[1][3] 281 pkhtb r8, lr, r7, asr #19 @ o[1][0,2] 282 pkhtb r11, r9, r10, asr #19 @ o[1][1,3] 283 ldr lr, [r0] 284 sxth r12, r12 285 ldr r9, [r0, r2] 286 sxth r1, r1 287 #if HAVE_ARMV6T2_EXTERNAL 288 sbfx r7, r7, #3, #13 289 sbfx r10, r10, #3, #13 290 #else 291 sxth r7, r7 292 sxth r10, r10 293 asr r7, #3 @ o[0][0] 294 asr r10, #3 @ o[0][1] 295 #endif 296 pkhbt r7, r7, r1, lsl #13 @ o[0][0,2] 297 pkhbt r10, r10, r12, lsl #13 @ o[0][1,3] 298 299 uxtab16 r7, r7, lr 300 uxtab16 r10, r10, lr, ror #8 301 uxtab16 r8, r8, r9 302 uxtab16 r11, r11, r9, ror #8 303 usat16 r7, #8, r7 304 usat16 r10, #8, r10 305 usat16 r8, #8, r8 306 usat16 r11, #8, r11 307 orr r7, r7, r10, lsl #8 308 orr r8, r8, r11, lsl #8 309 str r8, [r0, r2] 310 str_post r7, r0, r2, lsl #1 311 312 bne 2b 313 314 pop {r4-r12, pc} 315 endfunc 316 317 @ void vp8_idct_dc_add(uint8_t *dst, int16_t block[16], ptrdiff_t stride) 318 function ff_vp8_idct_dc_add_armv6, export=1 319 push {r4-r6, lr} 320 add r6, r0, r2, lsl #1 321 ldrsh r3, [r1] 322 mov r4, #0 323 add r3, r3, #4 324 strh r4, [r1], #32 325 asr r3, #3 326 ldr r5, [r0] 327 ldr r4, [r0, r2] 328 pkhbt r3, r3, r3, lsl #16 329 uxtab16 lr, r3, r5 @ a1+2 | a1+0 330 uxtab16 r5, r3, r5, ror #8 @ a1+3 | a1+1 331 uxtab16 r12, r3, r4 332 uxtab16 r4, r3, r4, ror #8 333 usat16 lr, #8, lr 334 usat16 r5, #8, r5 335 usat16 r12, #8, r12 336 usat16 r4, #8, r4 337 orr lr, lr, r5, lsl #8 338 ldr r5, [r6] 339 orr r12, r12, r4, lsl #8 340 ldr r4, [r6, r2] 341 str lr, [r0] 342 uxtab16 lr, r3, r5 343 str r12, [r0, r2] 344 uxtab16 r5, r3, r5, ror #8 345 uxtab16 r12, r3, r4 346 uxtab16 r4, r3, r4, ror #8 347 usat16 lr, #8, lr 348 usat16 r5, #8, r5 349 usat16 r12, #8, r12 350 usat16 r4, #8, r4 351 orr lr, lr, r5, lsl #8 352 orr r12, r12, r4, lsl #8 353 str lr, [r6] 354 str r12, [r6, r2] 355 pop {r4-r6, pc} 356 endfunc 357 358 @ void vp8_idct_dc_add4uv(uint8_t *dst, int16_t block[4][16], ptrdiff_t stride) 359 function ff_vp8_idct_dc_add4uv_armv6, export=1 360 push {r4, lr} 361 362 bl X(ff_vp8_idct_dc_add_armv6) 363 add r0, r0, #4 364 bl X(ff_vp8_idct_dc_add_armv6) 365 add r0, r0, r2, lsl #2 366 sub r0, r0, #4 367 bl X(ff_vp8_idct_dc_add_armv6) 368 add r0, r0, #4 369 bl X(ff_vp8_idct_dc_add_armv6) 370 371 pop {r4, pc} 372 endfunc 373 374 @ void vp8_idct_dc_add4y(uint8_t *dst, int16_t block[4][16], ptrdiff_t stride) 375 function ff_vp8_idct_dc_add4y_armv6, export=1 376 push {r4, lr} 377 378 bl X(ff_vp8_idct_dc_add_armv6) 379 add r0, r0, #4 380 bl X(ff_vp8_idct_dc_add_armv6) 381 add r0, r0, #4 382 bl X(ff_vp8_idct_dc_add_armv6) 383 add r0, r0, #4 384 bl X(ff_vp8_idct_dc_add_armv6) 385 386 pop {r4, pc} 387 endfunc 388 389 @ loopfilter 390 391 .macro transpose o3, o2, o1, o0, i0, i1, i2, i3 392 uxtb16 \o1, \i1 @ xx 12 xx 10 393 uxtb16 \o0, \i0 @ xx 02 xx 00 394 uxtb16 \o3, \i3 @ xx 32 xx 30 395 uxtb16 \o2, \i2 @ xx 22 xx 20 396 orr \o1, \o0, \o1, lsl #8 @ 12 02 10 00 397 orr \o3, \o2, \o3, lsl #8 @ 32 22 30 20 398 399 uxtb16 \i1, \i1, ror #8 @ xx 13 xx 11 400 uxtb16 \i3, \i3, ror #8 @ xx 33 xx 31 401 uxtb16 \i0, \i0, ror #8 @ xx 03 xx 01 402 uxtb16 \i2, \i2, ror #8 @ xx 23 xx 21 403 orr \i0, \i0, \i1, lsl #8 @ 13 03 11 01 404 orr \i2, \i2, \i3, lsl #8 @ 33 23 31 21 405 406 pkhtb \o2, \o3, \o1, asr #16 @ 32 22 12 02 407 pkhbt \o0, \o1, \o3, lsl #16 @ 30 20 10 00 408 pkhtb \o3, \i2, \i0, asr #16 @ 33 23 13 03 409 pkhbt \o1, \i0, \i2, lsl #16 @ 31 21 11 01 410 .endm 411 412 .macro simple_filter 413 uqsub8 r7, r3, r6 @ p1 - q1 414 uqsub8 r8, r6, r3 @ q1 - p1 415 uqsub8 r10, r4, r5 @ p0 - q0 416 uqsub8 r9, r5, r4 @ q0 - p0 417 orr r7, r7, r8 @ abs(p1 - q1) 418 orr r9, r9, r10 @ abs(p0 - q0) 419 uhadd8 r7, r7, lr @ abs(p1 - q2) >> 1 420 uqadd8 r9, r9, r9 @ abs(p0 - q0) * 2 421 uqadd8 r7, r7, r9 @ abs(p0 - q0)*2 + abs(p1-q1)/2 422 mvn r8, #0 423 usub8 r10, r12, r7 @ compare to flimit 424 sel r10, r8, lr @ filter mask: F or 0 425 cmp r10, #0 426 beq 2f 427 428 eor r3, r3, r2 @ ps1 429 eor r6, r6, r2 @ qs1 430 eor r4, r4, r2 @ ps0 431 eor r5, r5, r2 @ qs0 432 433 qsub8 r3, r3, r6 @ vp8_filter = p1 - q1 434 qsub8 r6, r5, r4 @ q0 - p0 435 qadd8 r3, r3, r6 @ += q0 - p0 436 lsr r7, r2, #5 @ 0x04040404 437 qadd8 r3, r3, r6 @ += q0 - p0 438 sub r9, r7, r2, lsr #7 @ 0x03030303 439 qadd8 r3, r3, r6 @ vp8_filter = p1-q1 + 3*(q0-p0) 440 and r3, r3, r10 @ vp8_filter &= mask 441 442 qadd8 r9, r3, r9 @ Filter2 = vp8_filter + 3 443 qadd8 r3, r3, r7 @ Filter1 = vp8_filter + 4 444 445 shadd8 r9, r9, lr 446 shadd8 r3, r3, lr 447 shadd8 r9, r9, lr 448 shadd8 r3, r3, lr 449 shadd8 r9, r9, lr @ Filter2 >>= 3 450 shadd8 r3, r3, lr @ Filter1 >>= 3 451 452 qadd8 r4, r4, r9 @ u = p0 + Filter2 453 qsub8 r5, r5, r3 @ u = q0 - Filter1 454 eor r4, r4, r2 @ *op0 = u ^ 0x80 455 eor r5, r5, r2 @ *oq0 = u ^ 0x80 456 .endm 457 458 @ void vp8_v_loop_filter16_simple(uint8_t *dst, ptrdiff_t stride, int flim) 459 function ff_vp8_v_loop_filter16_simple_armv6, export=1 460 push {r4-r11, lr} 461 462 orr r2, r2, r2, lsl #16 463 mov r11, #4 464 mov lr, #0 465 orr r12, r2, r2, lsl #8 466 mov32 r2, 0x80808080 467 1: 468 ldr_nreg r3, r0, r1, lsl #1 @ p1 469 ldr_nreg r4, r0, r1 @ p0 470 ldr r5, [r0] @ q0 471 ldr r6, [r0, r1] @ q1 472 simple_filter 473 T sub r7, r0, r1 474 str r5, [r0] @ oq0 475 A str r4, [r0, -r1] @ op0 476 T str r4, [r7] 477 2: 478 subs r11, r11, #1 479 add r0, r0, #4 480 bne 1b 481 482 pop {r4-r11, pc} 483 endfunc 484 485 .macro filter_mask_p 486 uqsub8 r6, r9, r10 @ p3 - p2 487 uqsub8 r7, r10, r9 @ p2 - p3 488 uqsub8 r8, r10, r11 @ p2 - p1 489 uqsub8 r10, r11, r10 @ p1 - p2 490 orr r6, r6, r7 @ abs(p3-p2) 491 orr r8, r8, r10 @ abs(p2-p1) 492 uqsub8 lr, r6, r2 @ compare to limit 493 uqsub8 r8, r8, r2 @ compare to limit 494 uqsub8 r6, r11, r12 @ p1 - p0 495 orr lr, lr, r8 496 uqsub8 r7, r12, r11 @ p0 - p1 497 orr r6, r6, r7 @ abs(p1-p0) 498 uqsub8 r7, r6, r2 @ compare to limit 499 uqsub8 r8, r6, r3 @ compare to thresh 500 orr lr, lr, r7 501 .endm 502 503 .macro filter_mask_pq 504 uqsub8 r6, r11, r10 @ p1 - q1 505 uqsub8 r7, r10, r11 @ q1 - p1 506 uqsub8 r11, r12, r9 @ p0 - q0 507 uqsub8 r12, r9, r12 @ q0 - p0 508 orr r6, r6, r7 @ abs(p1-q1) 509 orr r12, r11, r12 @ abs(p0-q0) 510 mov32 r7, 0x7f7f7f7f 511 uqadd8 r12, r12, r12 @ abs(p0-q0) * 2 512 and r6, r7, r6, lsr #1 @ abs(p1-q1) / 2 513 uqadd8 r12, r12, r6 @ abs(p0-q0) * 2 + abs(p1-q1)/2 514 .endm 515 516 .macro filter_mask_v 517 filter_mask_p 518 519 ldr r10, [r0, r1] @ q1 520 ldr_post r9, r0, r1, lsl #1 @ q0 521 522 filter_mask_pq 523 524 ldr r11, [r0] @ q2 525 526 uqsub8 r7, r9, r10 @ q0 - q1 527 uqsub8 r6, r10, r9 @ q1 - q0 528 uqsub8 r12, r12, r4 @ compare to flimit 529 uqsub8 r9, r11, r10 @ q2 - q1 530 uqsub8 r10, r10, r11 @ q1 - q2 531 orr lr, lr, r12 532 ldr r12, [r0, r1] @ q3 533 orr r6, r7, r6 @ abs(q1-q0) 534 orr r10, r9, r10 @ abs(q2-q1) 535 uqsub8 r9, r12, r11 @ q3 - q2 536 uqsub8 r11, r11, r12 @ q2 - q3 537 uqsub8 r7, r6, r2 @ compare to limit 538 uqsub8 r10, r10, r2 @ compare to limit 539 uqsub8 r6, r6, r3 @ compare to thresh 540 orr r9, r9, r11 @ abs(q3-q2) 541 orr lr, lr, r7 542 orr lr, lr, r10 543 uqsub8 r9, r9, r2 @ compare to limit 544 orr lr, lr, r9 545 546 mov r12, #0 547 usub8 lr, r12, lr 548 mvn r11, #0 549 sel lr, r11, r12 @ filter mask 550 sub r0, r0, r1, lsl #1 551 .endm 552 553 .macro filter_mask_h 554 transpose r12, r11, r10, r9, r6, r7, r8, lr 555 556 filter_mask_p 557 558 stm sp, {r8, r11, r12, lr} 559 sub r0, r0, r1, lsl #2 560 add r0, r0, #4 561 562 ldr r7, [r0, r1] 563 ldr_post r6, r0, r1, lsl #1 564 ldr lr, [r0, r1] 565 ldr r8, [r0] 566 567 transpose r12, r11, r10, r9, r6, r7, r8, lr 568 569 uqsub8 r8, r12, r11 @ q3 - q2 570 uqsub8 lr, r11, r12 @ q2 - q3 571 uqsub8 r7, r9, r10 @ q0 - q1 572 uqsub8 r6, r10, r9 @ q1 - q0 573 uqsub8 r12, r11, r10 @ q2 - q1 574 uqsub8 r11, r10, r11 @ q1 - q2 575 orr r8, r8, lr @ abs(q3-q2) 576 orr r6, r7, r6 @ abs(q1-q0) 577 orr r11, r12, r11 @ abs(q2-q1) 578 ldr lr, [sp, #12] @ load back (f)limit accumulator 579 uqsub8 r8, r8, r2 @ compare to limit 580 uqsub8 r7, r6, r2 @ compare to limit 581 uqsub8 r11, r11, r2 @ compare to limit 582 orr lr, lr, r8 583 uqsub8 r8, r6, r3 @ compare to thresh 584 orr lr, lr, r7 585 ldr r12, [sp, #8] @ p1 586 orr lr, lr, r11 587 588 ldr r11, [sp, #4] @ p0 589 590 filter_mask_pq 591 592 mov r10, #0 593 uqsub8 r12, r12, r4 @ compare to flimit 594 mvn r11, #0 595 orr lr, lr, r12 596 usub8 lr, r10, lr 597 sel lr, r11, r10 @ filter mask 598 .endm 599 600 .macro filter inner 601 mov32 r12, 0x80808080 602 eor r11, r7, r12 @ ps1 603 eor r8, r8, r12 @ ps0 604 eor r9, r9, r12 @ qs0 605 eor r10, r10, r12 @ qs1 606 607 stm sp, {r8-r11} 608 609 qsub8 r7, r11, r10 @ vp8_signed_char_clamp(ps1-qs1) 610 qsub8 r8, r9, r8 @ vp8_signed_char_clamp(vp8_filter + 3 * ( qs0 - ps0)) 611 .if \inner 612 and r7, r7, r6 @ vp8_filter &= hev 613 .endif 614 qadd8 r7, r7, r8 615 lsr r10, r12, #5 @ 0x04040404 616 qadd8 r7, r7, r8 617 sub r9, r10, r12, lsr #7 @ 0x03030303 618 qadd8 r7, r7, r8 619 620 and r7, r7, lr @ vp8_filter &= mask 621 .if !\inner 622 mov r12, r7 @ Filter2 623 and r7, r7, r6 @ Filter2 &= hev 624 .endif 625 qadd8 lr, r7, r9 @ Filter2 = vp8_signed_char_clamp(vp8_filter+3) 626 qadd8 r7, r7, r10 @ Filter1 = vp8_signed_char_clamp(vp8_filter+4) 627 628 mov r9, #0 629 shadd8 lr, lr, r9 @ Filter2 >>= 3 630 shadd8 r7, r7, r9 @ Filter1 >>= 3 631 shadd8 lr, lr, r9 632 shadd8 r7, r7, r9 633 shadd8 lr, lr, r9 @ Filter2 634 shadd8 r7, r7, r9 @ Filter1 635 .endm 636 637 .macro filter_v inner 638 orr r10, r6, r8 @ calculate vp8_hevmask 639 ldr_nreg r7, r0, r1, lsl #1 @ p1 640 usub8 r10, r12, r10 641 ldr_nreg r8, r0, r1 @ p0 642 sel r6, r12, r11 @ obtain vp8_hevmask 643 ldr r9, [r0] @ q0 644 ldr r10, [r0, r1] @ q1 645 filter \inner 646 .endm 647 648 .macro filter_h inner 649 orr r9, r6, r8 650 usub8 r9, r12, r9 651 sel r6, r12, r11 @ hev mask 652 653 stm sp, {r6, lr} 654 655 ldr_nreg r12, r0, r1, lsl #1 656 ldr_nreg r11, r0, r1 657 ldr r6, [r0] 658 ldr lr, [r0, r1] 659 660 transpose r10, r9, r8, r7, r12, r11, r6, lr 661 662 ldm sp, {r6, lr} 663 filter \inner 664 .endm 665 666 .macro filter_inner 667 ldm sp, {r8, r9} 668 lsr r10, r10, #2 @ 0x01010101 669 qadd8 r8, r8, lr @ u = vp8_signed_char_clamp(ps0 + Filter2) 670 mov lr, #0 671 qsub8 r9, r9, r7 @ u = vp8_signed_char_clamp(qs0 - Filter1) 672 sadd8 r7, r7, r10 @ vp8_filter += 1 673 ldr r10, [sp, #8] @ qs1 674 shadd8 r7, r7, lr @ vp8_filter >>= 1 675 eor r8, r8, r12 @ *op0 = u ^ 0x80 676 bic r7, r7, r6 @ vp8_filter &= ~hev 677 qadd8 r11, r11, r7 @ u = vp8_signed_char_clamp(ps1 + vp8_filter) 678 eor r9, r9, r12 @ *oq0 = u ^ 0x80 679 qsub8 r10, r10, r7 @ u = vp8_signed_char_clamp(qs1 - vp8_filter) 680 eor r11, r11, r12 @ *op1 = u ^ 0x80 681 eor r10, r10, r12 @ *oq1 = u ^ 0x80 682 .endm 683 684 .macro filter_x c0 685 mov lr, \c0 686 mov r7, #63 687 688 sxtb16 r6, r12 689 sxtb16 r10, r12, ror #8 690 smlabb r8, r6, lr, r7 691 smlatb r6, r6, lr, r7 692 smlabb r7, r10, lr, r7 693 smultb r10, r10, lr 694 ssat r8, #8, r8, asr #7 695 ssat r6, #8, r6, asr #7 696 add r10, r10, #63 697 ssat r7, #8, r7, asr #7 698 ssat r10, #8, r10, asr #7 699 700 pkhbt r6, r8, r6, lsl #16 701 pkhbt r10, r7, r10, lsl #16 702 uxtb16 r6, r6 703 uxtb16 r10, r10 704 705 mov32 lr, 0x80808080 706 707 orr r10, r6, r10, lsl #8 @ u = vp8_signed_char_clamp((63 + Filter2 * 27)>>7) 708 qsub8 r8, r9, r10 @ s = vp8_signed_char_clamp(qs0 - u) 709 qadd8 r10, r11, r10 @ s = vp8_signed_char_clamp(ps0 + u) 710 eor r8, r8, lr @ *oq0 = s ^ 0x80 711 eor r10, r10, lr @ *op0 = s ^ 0x80 712 .endm 713 714 .macro filter_1 715 ldm sp, {r8, r9} 716 qadd8 r11, r8, lr 717 qsub8 r9, r9, r7 718 bic r12, r12, r6 @ vp8_filter &= ~hev 719 filter_x #27 720 .endm 721 722 .macro filter_2 723 ldr r9, [sp, #8] @ qs1 724 ldr r11, [sp, #12] @ ps1 725 filter_x #18 726 .endm 727 728 .macro filter_3 729 eor r9, r9, lr 730 eor r11, r11, lr 731 filter_x #9 732 .endm 733 734 function vp8_v_loop_filter_inner_armv6 735 mov r5, #4 736 sub sp, sp, #16 737 738 orr r2, r2, r2, lsl #16 739 orr r3, r3, r3, lsl #16 740 orr r6, r6, r6, lsl #16 741 orr r4, r2, r2, lsl #8 @ flimE 742 orr r2, r3, r3, lsl #8 @ flimI 743 orr r3, r6, r6, lsl #8 @ thresh 744 1: 745 sub r0, r0, r1, lsl #2 746 ldr r10, [r0, r1] @ p2 747 ldr_post r9, r0, r1, lsl #1 @ p3 748 ldr r12, [r0, r1] @ p0 749 ldr_post r11, r0, r1, lsl #1 @ p1 750 751 filter_mask_v 752 cmp lr, #0 753 beq 2f 754 filter_v inner=1 755 filter_inner 756 757 A str r11, [r0, -r1, lsl #1] @ op1 758 A str r8, [r0, -r1] @ op0 759 T sub r0, r0, r1, lsl #1 760 T str r8, [r0, r1] 761 T str_post r11, r0, r1, lsl #1 762 str r9, [r0] @ oq0 763 str r10, [r0, r1] @ oq1 764 2: 765 add r0, r0, #4 766 cmp r5, #3 767 it eq 768 ldreq r0, [sp, #16] 769 subs r5, r5, #1 770 bne 1b 771 772 add sp, sp, #16 773 pop {r0, r4-r11, pc} 774 endfunc 775 776 function ff_vp8_v_loop_filter16_inner_armv6, export=1 777 push {r4-r11, lr} 778 add r12, r0, #8 779 push {r12} 780 ldr r6, [sp, #40] 781 orr r2, r2, r2, lsl #16 782 b vp8_v_loop_filter_inner_armv6 783 endfunc 784 785 function ff_vp8_v_loop_filter8uv_inner_armv6, export=1 786 push {r1, r4-r11, lr} 787 mov r1, r2 788 orr r2, r3, r3, lsl #16 789 ldr r3, [sp, #40] 790 ldr r6, [sp, #44] 791 b vp8_v_loop_filter_inner_armv6 792 endfunc 793 794 function vp8_v_loop_filter_armv6 795 mov r5, #4 796 sub sp, sp, #16 797 798 orr r3, r3, r3, lsl #16 799 orr r6, r6, r6, lsl #16 800 orr r4, r2, r2, lsl #8 @ flimE 801 orr r2, r3, r3, lsl #8 @ flimI 802 orr r3, r6, r6, lsl #8 @ thresh 803 1: 804 sub r0, r0, r1, lsl #2 805 ldr r10, [r0, r1] @ p2 806 ldr_post r9, r0, r1, lsl #1 @ p3 807 ldr r12, [r0, r1] @ p0 808 ldr_post r11, r0, r1, lsl #1 @ p1 809 810 filter_mask_v 811 cmp lr, #0 812 beq 2f 813 814 filter_v inner=0 815 filter_1 816 817 str r8, [r0] @ *oq0 818 A str r10, [r0, -r1] @ *op0 819 T sub r0, r0, r1, lsl #1 820 T str r10, [r0, r1] 821 822 filter_2 823 824 A str r10, [r0, -r1, lsl #1] @ *op1 825 T str_post r10, r0, r1, lsl #1 826 str r8, [r0, r1] @ *oq1 827 828 ldr r9, [r0, r1, lsl #1] @ q2 829 add r0, r0, r1 830 A ldr r11, [r0, -r1, lsl #2] @ p2 831 T ldr_dpre r11, r0, r1, lsl #2 832 833 filter_3 834 835 A str r10, [r0, -r1, lsl #2] @ *op2 836 T str_post r10, r0, r1, lsl #2 837 str r8, [r0, r1] @ *oq2 838 sub r0, r0, r1 839 2: 840 add r0, r0, #4 841 cmp r5, #3 842 it eq 843 ldreq r0, [sp, #16] 844 subs r5, r5, #1 845 bne 1b 846 847 add sp, sp, #16 848 pop {r0, r4-r11, pc} 849 endfunc 850 851 function ff_vp8_v_loop_filter16_armv6, export=1 852 push {r4-r11, lr} 853 add r12, r0, #8 854 push {r12} 855 ldr r6, [sp, #40] 856 orr r2, r2, r2, lsl #16 857 b vp8_v_loop_filter_armv6 858 endfunc 859 860 function ff_vp8_v_loop_filter8uv_armv6, export=1 861 push {r1, r4-r11, lr} 862 mov r1, r2 863 orr r2, r3, r3, lsl #16 864 ldr r3, [sp, #40] 865 ldr r6, [sp, #44] 866 b vp8_v_loop_filter_armv6 867 endfunc 868 869 @ void vp8_h_loop_filter16_simple(uint8_t *dst, ptrdiff_t stride, int flim) 870 function ff_vp8_h_loop_filter16_simple_armv6, export=1 871 push {r4-r11, lr} 872 orr r12, r2, r2, lsl #16 873 mov32 r2, 0x80808080 874 orr r12, r12, r12, lsl #8 875 876 mov lr, #0 877 mov r11, #4 878 1: 879 sub r0, r0, #2 880 ldr r8, [r0, r1] 881 ldr_post r7, r0, r1, lsl #1 882 ldr r10, [r0, r1] 883 ldr_post r9, r0, r1, lsl #1 884 add r0, r0, #2 885 transpose r6, r5, r4, r3, r7, r8, r9, r10 886 simple_filter 887 sub r0, r0, r1, lsl #2 888 sub r0, r0, #1 889 890 uxtb16 r6, r4 891 uxtb16 r8, r5 892 uxtb16 r7, r4, ror #8 893 uxtb16 r9, r5, ror #8 894 orr r6, r6, r8, lsl #8 895 orr r7, r7, r9, lsl #8 896 lsr r4, r6, #16 897 lsr r5, r7, #16 898 899 strh_post r6, r0, r1 900 strh_post r7, r0, r1 901 strh_post r4, r0, r1 902 strh_post r5, r0, r1 903 add r0, r0, #1 904 2: 905 subs r11, r11, #1 906 bne 1b 907 908 pop {r4-r11, pc} 909 endfunc 910 911 function vp8_h_loop_filter_inner_armv6 912 mov r5, #4 913 sub sp, sp, #16 914 915 orr r3, r3, r3, lsl #16 916 orr r9, r9, r9, lsl #16 917 orr r4, r2, r2, lsl #8 @ flimE 918 orr r2, r3, r3, lsl #8 @ flimI 919 orr r3, r9, r9, lsl #8 @ thresh 920 sub r0, r0, #4 921 1: 922 ldr r7, [r0, r1] 923 ldr_post r6, r0, r1, lsl #1 924 ldr lr, [r0, r1] 925 ldr_post r8, r0, r1, lsl #1 926 927 filter_mask_h 928 929 cmp lr, #0 930 sub r0, r0, #2 931 beq 2f 932 933 ldr r6, [sp] 934 935 filter_h inner=1 936 filter_inner 937 938 transpose lr, r12, r7, r6, r11, r8, r9, r10 939 940 A str r6, [r0, -r1, lsl #1] 941 A str r7, [r0, -r1] 942 T sub r0, r0, r1, lsl #1 943 T str r7, [r0, r1] 944 T str_post r6, r0, r1, lsl #1 945 str r12, [r0] 946 str lr, [r0, r1] 947 2: 948 sub r0, r0, #2 949 add r0, r0, r1, lsl #1 950 cmp r5, #3 951 it eq 952 ldreq r0, [sp, #16] 953 subs r5, r5, #1 954 bne 1b 955 956 add sp, sp, #16 957 pop {r0, r4-r11, pc} 958 endfunc 959 960 function ff_vp8_h_loop_filter16_inner_armv6, export=1 961 push {r4-r11, lr} 962 add r12, r0, r1, lsl #3 963 sub r12, r12, #4 964 push {r12} 965 ldr r9, [sp, #40] 966 orr r2, r2, r2, lsl #16 967 b vp8_h_loop_filter_inner_armv6 968 endfunc 969 970 function ff_vp8_h_loop_filter8uv_inner_armv6, export=1 971 sub r1, r1, #4 972 push {r1, r4-r11, lr} 973 mov r1, r2 974 orr r2, r3, r3, lsl #16 975 ldr r3, [sp, #40] 976 ldr r9, [sp, #44] 977 b vp8_h_loop_filter_inner_armv6 978 endfunc 979 980 function vp8_h_loop_filter_armv6 981 mov r5, #4 982 sub sp, sp, #16 983 984 orr r3, r3, r3, lsl #16 985 orr r9, r9, r9, lsl #16 986 orr r4, r2, r2, lsl #8 @ flimE 987 orr r2, r3, r3, lsl #8 @ flimI 988 orr r3, r9, r9, lsl #8 @ thresh 989 1: 990 sub r0, r0, #4 991 ldr r7, [r0, r1] 992 ldr_post r6, r0, r1, lsl #1 993 ldr lr, [r0, r1] 994 ldr_post r8, r0, r1, lsl #1 995 996 filter_mask_h 997 cmp lr, #0 998 it eq 999 addeq r0, r0, r1, lsl #1 1000 beq 2f 1001 1002 ldr r6, [sp] 1003 sub r0, r0, #2 1004 1005 filter_h inner=0 1006 filter_1 1007 1008 sub r0, r0, r1, lsl #1 1009 uxtb16 r6, r10 1010 uxtb16 r7, r8 1011 uxtb16 r10, r10, ror #8 1012 uxtb16 r8, r8, ror #8 1013 orr r6, r6, r7, lsl #8 1014 orr r10, r10, r8, lsl #8 1015 lsr r7, r6, #16 1016 lsr r8, r10, #16 1017 1018 add r0, r0, #1 1019 strh_post r6, r0, r1 1020 strh_post r10, r0, r1 1021 strh_post r7, r0, r1 1022 strh_post r8, r0, r1 1023 1024 filter_2 1025 1026 sub r0, r0, r1, lsl #2 1027 add r0, r0, #3 1028 1029 ldrb r11, [r0, #-5] @ p2 for 1/7th difference 1030 strb r10, [r0, #-4] @ op1 1031 strb r8, [r0, #-1] @ oq1 1032 ldrb_post r9, r0, r1 @ q2 for 1/7th difference 1033 1034 lsr r10, r10, #8 1035 lsr r8, r8, #8 1036 1037 ldrb r6, [r0, #-5] 1038 strb r10, [r0, #-4] 1039 strb r8, [r0, #-1] 1040 ldrb_post r7, r0, r1 1041 1042 lsr r10, r10, #8 1043 lsr r8, r8, #8 1044 orr r11, r11, r6, lsl #8 1045 orr r9, r9, r7, lsl #8 1046 1047 ldrb r6, [r0, #-5] 1048 strb r10, [r0, #-4] 1049 strb r8, [r0, #-1] 1050 ldrb_post r7, r0, r1 1051 1052 lsr r10, r10, #8 1053 lsr r8, r8, #8 1054 orr r11, r11, r6, lsl #16 1055 orr r9, r9, r7, lsl #16 1056 1057 ldrb r6, [r0, #-5] 1058 strb r10, [r0, #-4] 1059 strb r8, [r0, #-1] 1060 ldrb_post r7, r0, r1 1061 orr r11, r11, r6, lsl #24 1062 orr r9, r9, r7, lsl #24 1063 1064 filter_3 1065 1066 sub r0, r0, r1, lsl #2 1067 strb r10, [r0, #-5] 1068 strb_post r8, r0, r1 1069 lsr r10, r10, #8 1070 lsr r8, r8, #8 1071 strb r10, [r0, #-5] 1072 strb_post r8, r0, r1 1073 lsr r10, r10, #8 1074 lsr r8, r8, #8 1075 strb r10, [r0, #-5] 1076 strb_post r8, r0, r1 1077 lsr r10, r10, #8 1078 lsr r8, r8, #8 1079 strb r10, [r0, #-5] 1080 strb_post r8, r0, r1 1081 1082 sub r0, r0, #2 1083 2: 1084 cmp r5, #3 1085 it eq 1086 ldreq r0, [sp, #16] 1087 subs r5, r5, #1 1088 bne 1b 1089 1090 add sp, sp, #16 1091 pop {r0, r4-r11, pc} 1092 endfunc 1093 1094 function ff_vp8_h_loop_filter16_armv6, export=1 1095 push {r4-r11, lr} 1096 add r12, r0, r1, lsl #3 1097 push {r12} 1098 ldr r9, [sp, #40] 1099 orr r2, r2, r2, lsl #16 1100 b vp8_h_loop_filter_armv6 1101 endfunc 1102 1103 function ff_vp8_h_loop_filter8uv_armv6, export=1 1104 push {r1, r4-r11, lr} 1105 mov r1, r2 1106 orr r2, r3, r3, lsl #16 1107 ldr r3, [sp, #40] 1108 ldr r9, [sp, #44] 1109 b vp8_h_loop_filter_armv6 1110 endfunc 1111 1112 .ltorg 1113 1114 @ MC 1115 1116 @ void put_vp8_pixels16(uint8_t *dst, ptrdiff_t dststride, const uint8_t *src, 1117 @ ptrdiff_t srcstride, int h, int mx, int my) 1118 function ff_put_vp8_pixels16_armv6, export=1 1119 push {r4-r11} 1120 ldr r12, [sp, #32] @ h 1121 1: 1122 subs r12, r12, #2 1123 ldr r5, [r2, #4] 1124 ldr r6, [r2, #8] 1125 ldr r7, [r2, #12] 1126 ldr_post r4, r2, r3 1127 ldr r9, [r2, #4] 1128 ldr r10, [r2, #8] 1129 ldr r11, [r2, #12] 1130 ldr_post r8, r2, r3 1131 strd r6, r7, [r0, #8] 1132 strd_post r4, r5, r0, r1 1133 strd r10, r11, [r0, #8] 1134 strd_post r8, r9, r0, r1 1135 bgt 1b 1136 pop {r4-r11} 1137 bx lr 1138 endfunc 1139 1140 @ void put_vp8_pixels8(uint8_t *dst, ptrdiff_t dststride, const uint8_t *src, 1141 @ ptrdiff_t srcstride, int h, int mx, int my) 1142 function ff_put_vp8_pixels8_armv6, export=1 1143 push {r4-r11} 1144 ldr r12, [sp, #32] @ h 1145 1: 1146 subs r12, r12, #4 1147 ldr r5, [r2, #4] 1148 ldr_post r4, r2, r3 1149 ldr r7, [r2, #4] 1150 ldr_post r6, r2, r3 1151 ldr r9, [r2, #4] 1152 ldr_post r8, r2, r3 1153 ldr r11, [r2, #4] 1154 ldr_post r10, r2, r3 1155 strd_post r4, r5, r0, r1 1156 strd_post r6, r7, r0, r1 1157 strd_post r8, r9, r0, r1 1158 strd_post r10, r11, r0, r1 1159 bgt 1b 1160 pop {r4-r11} 1161 bx lr 1162 endfunc 1163 1164 @ void put_vp8_pixels4(uint8_t *dst, ptrdiff_t dststride, const uint8_t *src, 1165 @ ptrdiff_t srcstride, int h, int mx, int my) 1166 function ff_put_vp8_pixels4_armv6, export=1 1167 ldr r12, [sp, #0] @ h 1168 push {r4-r6,lr} 1169 1: 1170 subs r12, r12, #4 1171 ldr_post r4, r2, r3 1172 ldr_post r5, r2, r3 1173 ldr_post r6, r2, r3 1174 ldr_post lr, r2, r3 1175 str_post r4, r0, r1 1176 str_post r5, r0, r1 1177 str_post r6, r0, r1 1178 str_post lr, r0, r1 1179 bgt 1b 1180 pop {r4-r6,pc} 1181 endfunc 1182 1183 @ note: worst case sum of all 6-tap filter values * 255 is 0x7f80 so 16 bit 1184 @ arithmetic can be used to apply filters 1185 const sixtap_filters_13245600, align=4 1186 .short 2, 108, -11, 36, -8, 1, 0, 0 1187 .short 3, 77, -16, 77, -16, 3, 0, 0 1188 .short 1, 36, -8, 108, -11, 2, 0, 0 1189 endconst 1190 1191 const fourtap_filters_1324, align=4 1192 .short -6, 12, 123, -1 1193 .short -9, 50, 93, -6 1194 .short -6, 93, 50, -9 1195 .short -1, 123, 12, -6 1196 endconst 1197 1198 .macro vp8_mc_1 name, size, hv 1199 function ff_put_vp8_\name\size\()_\hv\()_armv6, export=1 1200 sub r1, r1, #\size 1201 mov r12, sp 1202 push {r1, r4-r11, lr} 1203 ldm r12, {r5-r7} 1204 mov r4, #\size 1205 stm r12, {r4, r5} 1206 orr r12, r6, r7 1207 b bl_put_\name\()_\hv\()_armv6 1208 endfunc 1209 .endm 1210 1211 vp8_mc_1 epel, 16, h6 1212 vp8_mc_1 epel, 16, v6 1213 vp8_mc_1 epel, 8, h6 1214 vp8_mc_1 epel, 8, v6 1215 vp8_mc_1 epel, 8, h4 1216 vp8_mc_1 epel, 8, v4 1217 vp8_mc_1 epel, 4, h6 1218 vp8_mc_1 epel, 4, v6 1219 vp8_mc_1 epel, 4, h4 1220 vp8_mc_1 epel, 4, v4 1221 1222 vp8_mc_1 bilin, 16, h 1223 vp8_mc_1 bilin, 16, v 1224 vp8_mc_1 bilin, 8, h 1225 vp8_mc_1 bilin, 8, v 1226 vp8_mc_1 bilin, 4, h 1227 vp8_mc_1 bilin, 4, v 1228 1229 @ 4 and 8 pixel wide mc blocks might have height of 8 or 16 lines 1230 #define TMPSIZE \size * (16 / ((16 / \size + 1) / 2) + \ytaps - 1) 1231 1232 .macro vp8_mc_hv name, size, h, v, ytaps 1233 function ff_put_vp8_\name\size\()_\h\v\()_armv6, export=1 1234 push {r0, r1, r4, lr} 1235 add r0, sp, #16 1236 sub sp, sp, #TMPSIZE+16 1237 ldm r0, {r0, r12} 1238 mov r4, #\size 1239 add lr, r0, #\ytaps-1 1240 .if \ytaps > 2 1241 sub r2, r2, r3, lsl #\ytaps >> 1 & 1 1242 .endif 1243 stm sp, {r4, lr} 1244 add r0, sp, #16 1245 mov r1, #0 1246 bl vp8_put_\name\()_\h\()_armv6 1247 add r0, sp, #TMPSIZE+16 1248 ldr lr, [sp, #TMPSIZE+16+16] 1249 ldm r0, {r0, r1} 1250 mov r3, #\size 1251 ldr r12, [sp, #TMPSIZE+16+16+8] 1252 str lr, [sp, #4] 1253 add r2, sp, #16 + \size * (\ytaps / 2 - 1) 1254 sub r1, r1, #\size 1255 bl vp8_put_\name\()_\v\()_armv6 1256 add sp, sp, #TMPSIZE+16+8 1257 pop {r4, pc} 1258 endfunc 1259 .endm 1260 1261 vp8_mc_hv epel, 16, h6, v6, 6 1262 vp8_mc_hv epel, 8, h6, v6, 6 1263 vp8_mc_hv epel, 8, h4, v6, 6 1264 vp8_mc_hv epel, 8, h6, v4, 4 1265 vp8_mc_hv epel, 8, h4, v4, 4 1266 vp8_mc_hv epel, 4, h6, v6, 6 1267 vp8_mc_hv epel, 4, h4, v6, 6 1268 vp8_mc_hv epel, 4, h6, v4, 4 1269 vp8_mc_hv epel, 4, h4, v4, 4 1270 1271 vp8_mc_hv bilin, 16, h, v, 2 1272 vp8_mc_hv bilin, 8, h, v, 2 1273 vp8_mc_hv bilin, 4, h, v, 2 1274 1275 .macro sat4 r0, r1, r2, r3 1276 asr \r0, \r0, #7 1277 asr \r1, \r1, #7 1278 pkhbt \r0, \r0, \r2, lsl #9 1279 pkhbt \r1, \r1, \r3, lsl #9 1280 usat16 \r0, #8, \r0 1281 usat16 \r1, #8, \r1 1282 orr \r0, \r0, \r1, lsl #8 1283 .endm 1284 1285 @ Calling convention for the inner MC functions: 1286 @ r0 dst 1287 @ r1 dst_stride - block_width 1288 @ r2 src 1289 @ r3 src_stride 1290 @ r4 block_width 1291 @ r12 filter_index 1292 @ [sp] block_width 1293 @ [sp+4] height 1294 @ [sp+8] scratch 1295 1296 function vp8_put_epel_h6_armv6 1297 push {r1, r4-r11, lr} 1298 bl_put_epel_h6_armv6: 1299 sub r2, r2, #2 1300 movrel lr, sixtap_filters_13245600 - 16 1301 add lr, lr, r12, lsl #3 1302 sub r3, r3, r4 1303 str r3, [sp, #48] 1304 ldm lr, {r1, r3, lr} 1305 1: 1306 ldr r7, [r2, #5] @ src[5-8] 1307 ldr r6, [r2, #2] @ src[2-5] 1308 ldr r5, [r2], #4 @ src[0-3] 1309 1310 pkhtb r7, r7, r7, asr #8 @ src[8,7,7,6] 1311 uxtb16 r9, r6, ror #8 @ src[5] | src[3] 1312 uxtb16 r6, r6 @ src[4] | src[2] 1313 uxtb16 r8, r5, ror #8 @ src[3] | src[1] 1314 uxtb16 r11, r7, ror #8 @ src[8] | src[7] 1315 uxtb16 r7, r7 @ src[7] | src[6] 1316 uxtb16 r5, r5 @ src[2] | src[0] 1317 1318 mov r10, #0x40 1319 smlad r5, r5, r1, r10 @ filter[0][0] 1320 smlad r11, r11, lr, r10 @ filter[3][2] 1321 smlad r12, r7, lr, r10 @ filter[2][2] 1322 smlad r10, r8, r1, r10 @ filter[1][0] 1323 smlad r5, r8, r3, r5 @ filter[0][1] 1324 smlad r11, r9, r1, r11 @ filter[3][0] 1325 smlad r12, r9, r3, r12 @ filter[2][1] 1326 pkhtb r9, r9, r6, asr #16 @ src[5] | src[4] 1327 smlad r10, r6, r3, r10 @ filter[1][1] 1328 pkhbt r7, r9, r7, lsl #16 @ src[6] | src[4] 1329 smlad r5, r9, lr, r5 @ filter[0][2] 1330 pkhtb r8, r7, r9, asr #16 @ src[6] | src[5] 1331 smlad r11, r7, r3, r11 @ filter[3][1] 1332 smlad r9, r8, lr, r10 @ filter[1][2] 1333 smlad r7, r6, r1, r12 @ filter[2][0] 1334 1335 subs r4, r4, #4 1336 1337 sat4 r5, r9, r7, r11 1338 str r5, [r0], #4 1339 1340 bne 1b 1341 1342 add r4, sp, #40 1343 ldm r4, {r4, r5, r12} 1344 ldr r6, [sp] 1345 subs r5, r5, #1 1346 add r2, r2, r12 1347 str r5, [sp, #44] 1348 add r0, r0, r6 1349 1350 bne 1b 1351 1352 pop {r1, r4-r11, pc} 1353 endfunc 1354 1355 function vp8_put_epel_v6_armv6 1356 push {r1, r4-r11, lr} 1357 bl_put_epel_v6_armv6: 1358 movrel lr, sixtap_filters_13245600 - 16 1359 add lr, lr, r12, lsl #3 1360 str r3, [sp, #48] 1361 1: 1362 add r1, r3, r3, lsl #1 @ stride * 3 1363 ldr_nreg r5, r2, r3 @ src[0,1,2,3 + stride * 1] 1364 ldr r6, [r2, r3] @ src[0,1,2,3 + stride * 3] 1365 ldr r7, [r2, r3, lsl #1] @ src[0,1,2,3 + stride * 4] 1366 ldr r8, [r2, r1] @ src[0,1,2,3 + stride * 5] 1367 1368 uxtb16 r9, r5, ror #8 @ src[3 + s*1] | src[1 + s*1] 1369 uxtb16 r10, r6, ror #8 @ src[3 + s*3] | src[1 + s*3] 1370 uxtb16 r11, r7, ror #8 @ src[3 + s*4] | src[1 + s*4] 1371 uxtb16 r12, r8, ror #8 @ src[3 + s*5] | src[1 + s*5] 1372 uxtb16 r5, r5 @ src[2 + s*1] | src[0 + s*1] 1373 uxtb16 r6, r6 @ src[2 + s*3] | src[0 + s*3] 1374 uxtb16 r7, r7 @ src[2 + s*4] | src[0 + s*4] 1375 uxtb16 r8, r8 @ src[2 + s*5] | src[0 + s*5] 1376 pkhbt r1, r9, r10, lsl #16 @ src[1 + s*3] | src[1 + s*1] 1377 pkhtb r9, r10, r9, asr #16 @ src[3 + s*3] | src[3 + s*1] 1378 pkhbt r10, r11, r12, lsl #16 @ src[1 + s*5] | src[1 + s*4] 1379 pkhtb r11, r12, r11, asr #16 @ src[3 + s*5] | src[3 + s*4] 1380 pkhbt r12, r5, r6, lsl #16 @ src[0 + s*3] | src[0 + s*1] 1381 pkhtb r5, r6, r5, asr #16 @ src[2 + s*3] | src[2 + s*1] 1382 pkhbt r6, r7, r8, lsl #16 @ src[0 + s*5] | src[0 + s*4] 1383 pkhtb r7, r8, r7, asr #16 @ src[2 + s*5] | src[2 + s*4] 1384 1385 ldr r8, [lr, #4] 1386 mov r3, #0x40 1387 smlad r12, r12, r8, r3 @ filter[0][1] 1388 smlad r1, r1, r8, r3 @ filter[1][1] 1389 smlad r5, r5, r8, r3 @ filter[2][1] 1390 smlad r9, r9, r8, r3 @ filter[3][1] 1391 ldr r8, [lr, #8] 1392 ldr r3, [sp, #48] 1393 smlad r12, r6, r8, r12 @ filter[0][2] 1394 smlad r1, r10, r8, r1 @ filter[1][2] 1395 ldr_nreg r6, r2, r3, lsl #1 @ src[0,1,2,3 + stride * 0] 1396 ldr r10, [r2], #4 @ src[0,1,2,3 + stride * 2] 1397 smlad r5, r7, r8, r5 @ filter[2][2] 1398 smlad r9, r11, r8, r9 @ filter[3][2] 1399 1400 uxtb16 r7, r6, ror #8 @ src[3 + s*0] | src[1 + s*0] 1401 uxtb16 r11, r10, ror #8 @ src[3 + s*2] | src[1 + s*2] 1402 uxtb16 r6, r6 @ src[2 + s*0] | src[0 + s*0] 1403 uxtb16 r10, r10 @ src[2 + s*2] | src[0 + s*2] 1404 1405 pkhbt r8, r7, r11, lsl #16 @ src[1 + s*2] | src[1 + s*0] 1406 pkhtb r7, r11, r7, asr #16 @ src[3 + s*2] | src[3 + s*0] 1407 pkhbt r11, r6, r10, lsl #16 @ src[0 + s*2] | src[0 + s*0] 1408 pkhtb r6, r10, r6, asr #16 @ src[2 + s*2] | src[2 + s*0] 1409 1410 ldr r10, [lr] 1411 subs r4, r4, #4 1412 smlad r12, r11, r10, r12 @ filter[0][0] 1413 smlad r1, r8, r10, r1 @ filter[1][0] 1414 smlad r5, r6, r10, r5 @ filter[2][0] 1415 smlad r9, r7, r10, r9 @ filter[3][0] 1416 1417 sat4 r12, r1, r5, r9 1418 str r12, [r0], #4 1419 1420 bne 1b 1421 1422 ldrd r4, r5, [sp, #40] 1423 ldr r6, [sp] 1424 subs r5, r5, #1 1425 sub r2, r2, r4 1426 str r5, [sp, #44] 1427 add r0, r0, r6 1428 add r2, r2, r3 1429 1430 bne 1b 1431 1432 pop {r1, r4-r11, pc} 1433 endfunc 1434 1435 function vp8_put_epel_h4_armv6 1436 push {r1, r4-r11, lr} 1437 bl_put_epel_h4_armv6: 1438 subs r2, r2, #1 1439 movrel lr, fourtap_filters_1324 - 4 1440 add lr, lr, r12, lsl #2 1441 sub r3, r3, r4 1442 ldm lr, {r5, r6} 1443 ldr lr, [sp, #44] 1444 1: 1445 ldr r9, [r2, #3] 1446 ldr r8, [r2, #2] 1447 ldr r7, [r2], #4 1448 1449 uxtb16 r9, r9, ror #8 @ src[6] | src[4] 1450 uxtb16 r10, r8, ror #8 @ src[5] | src[3] 1451 uxtb16 r8, r8 @ src[4] | src[2] 1452 uxtb16 r11, r7, ror #8 @ src[3] | src[1] 1453 uxtb16 r7, r7 @ src[2] | src[0] 1454 1455 mov r12, #0x40 1456 smlad r9, r9, r6, r12 @ filter[3][1] 1457 smlad r7, r7, r5, r12 @ filter[0][0] 1458 smlad r9, r10, r5, r9 @ filter[3][0] 1459 smlad r10, r10, r6, r12 @ filter[2][1] 1460 smlad r12, r11, r5, r12 @ filter[1][0] 1461 smlad r7, r11, r6, r7 @ filter[0][1] 1462 smlad r10, r8, r5, r10 @ filter[2][0] 1463 smlad r12, r8, r6, r12 @ filter[1][1] 1464 1465 subs r4, r4, #4 1466 1467 sat4 r7, r12, r10, r9 1468 str r7, [r0], #4 1469 1470 bne 1b 1471 1472 subs lr, lr, #1 1473 ldr r4, [sp, #40] 1474 add r2, r2, r3 1475 add r0, r0, r1 1476 1477 bne 1b 1478 1479 pop {r1, r4-r11, pc} 1480 endfunc 1481 1482 function vp8_put_epel_v4_armv6 1483 push {r1, r4-r11, lr} 1484 bl_put_epel_v4_armv6: 1485 movrel lr, fourtap_filters_1324 - 4 1486 add lr, lr, r12, lsl #2 1487 ldm lr, {r5, r6} 1488 str r3, [sp, #48] 1489 1: 1490 ldr lr, [r2, r3, lsl #1] 1491 ldr r12, [r2, r3] 1492 ldr_nreg r7, r2, r3 1493 ldr r11, [r2], #4 1494 1495 uxtb16 r8, lr, ror #8 @ src[3 + s*3] | src[1 + s*3] 1496 uxtb16 r9, r12, ror #8 @ src[3 + s*2] | src[1 + s*2] 1497 uxtb16 r3, r7, ror #8 @ src[3 + s*0] | src[1 + s*0] 1498 uxtb16 r1, r11, ror #8 @ src[3 + s*1] | src[1 + s*1] 1499 uxtb16 lr, lr @ src[2 + s*3] | src[0 + s*3] 1500 uxtb16 r12, r12 @ src[2 + s*2] | src[0 + s*2] 1501 uxtb16 r7, r7 @ src[2 + s*0] | src[0 + s*0] 1502 uxtb16 r11, r11 @ src[2 + s*1] | src[0 + s*1] 1503 pkhbt r10, r1, r8, lsl #16 @ src[1 + s*3] | src[1 + s*1] 1504 pkhtb r1, r8, r1, asr #16 @ src[3 + s*3] | src[3 + s*1] 1505 pkhbt r8, r3, r9, lsl #16 @ src[1 + s*2] | src[1 + s*0] 1506 pkhtb r3, r9, r3, asr #16 @ src[3 + s*2] | src[3 + s*0] 1507 pkhbt r9, r11, lr, lsl #16 @ src[0 + s*3] | src[0 + s*1] 1508 pkhtb r11, lr, r11, asr #16 @ src[2 + s*3] | src[2 + s*1] 1509 pkhbt lr, r7, r12, lsl #16 @ src[0 + s*2] | src[0 + s*0] 1510 pkhtb r7, r12, r7, asr #16 @ src[2 + s*2] | src[2 + s*0] 1511 1512 mov r12, #0x40 1513 smlad r9, r9, r6, r12 @ filter[0][1] 1514 smlad r10, r10, r6, r12 @ filter[1][1] 1515 smlad r11, r11, r6, r12 @ filter[2][1] 1516 smlad r1, r1, r6, r12 @ filter[3][1] 1517 smlad r9, lr, r5, r9 @ filter[0][0] 1518 smlad r10, r8, r5, r10 @ filter[1][0] 1519 smlad r11, r7, r5, r11 @ filter[2][0] 1520 smlad r1, r3, r5, r1 @ filter[3][0] 1521 1522 subs r4, r4, #4 1523 ldr r3, [sp, #48] 1524 1525 sat4 r9, r10, r11, r1 1526 str r9, [r0], #4 1527 1528 bne 1b 1529 1530 ldr r4, [sp, #40] 1531 ldr r12, [sp, #44] 1532 add r2, r2, r3 1533 ldr r9, [sp, #0] 1534 subs r12, r12, #1 1535 sub r2, r2, r4 1536 str r12, [sp, #44] 1537 add r0, r0, r9 1538 1539 bne 1b 1540 1541 pop {r1, r4-r11, pc} 1542 endfunc 1543 1544 function vp8_put_bilin_h_armv6 1545 push {r1, r4-r11, lr} 1546 bl_put_bilin_h_armv6: 1547 rsb r5, r12, r12, lsl #16 1548 ldr r12, [sp, #44] 1549 sub r3, r3, r4 1550 add r5, r5, #8 1551 1: 1552 ldrb r6, [r2], #1 1553 ldrb r7, [r2], #1 1554 ldrb r8, [r2], #1 1555 ldrb r9, [r2], #1 1556 ldrb lr, [r2] 1557 1558 pkhbt r6, r6, r7, lsl #16 @ src[1] | src[0] 1559 pkhbt r7, r7, r8, lsl #16 @ src[2] | src[1] 1560 pkhbt r8, r8, r9, lsl #16 @ src[3] | src[2] 1561 pkhbt r9, r9, lr, lsl #16 @ src[4] | src[3] 1562 1563 mov r10, #4 1564 smlad r6, r6, r5, r10 1565 smlad r7, r7, r5, r10 1566 smlad r8, r8, r5, r10 1567 smlad r9, r9, r5, r10 1568 1569 subs r4, r4, #4 1570 1571 asr r6, #3 1572 asr r7, #3 1573 pkhbt r6, r6, r8, lsl #13 1574 pkhbt r7, r7, r9, lsl #13 1575 orr r6, r6, r7, lsl #8 1576 str r6, [r0], #4 1577 1578 bne 1b 1579 1580 ldr r4, [sp, #40] 1581 subs r12, r12, #1 1582 add r2, r2, r3 1583 add r0, r0, r1 1584 1585 bne 1b 1586 1587 pop {r1, r4-r11, pc} 1588 endfunc 1589 1590 function vp8_put_bilin_v_armv6 1591 push {r1, r4-r11, lr} 1592 bl_put_bilin_v_armv6: 1593 rsb r5, r12, r12, lsl #16 1594 ldr r12, [sp, #44] 1595 add r5, r5, #8 1596 1: 1597 ldrb r10, [r2, r3] 1598 ldrb r6, [r2], #1 1599 ldrb r11, [r2, r3] 1600 ldrb r7, [r2], #1 1601 ldrb lr, [r2, r3] 1602 ldrb r8, [r2], #1 1603 ldrb r9, [r2, r3] 1604 pkhbt r6, r6, r10, lsl #16 1605 ldrb r10, [r2], #1 1606 pkhbt r7, r7, r11, lsl #16 1607 pkhbt r8, r8, lr, lsl #16 1608 pkhbt r9, r10, r9, lsl #16 1609 1610 mov r10, #4 1611 smlad r6, r6, r5, r10 1612 smlad r7, r7, r5, r10 1613 smlad r8, r8, r5, r10 1614 smlad r9, r9, r5, r10 1615 1616 subs r4, r4, #4 1617 1618 asr r6, #3 1619 asr r7, #3 1620 pkhbt r6, r6, r8, lsl #13 1621 pkhbt r7, r7, r9, lsl #13 1622 orr r6, r6, r7, lsl #8 1623 str r6, [r0], #4 1624 1625 bne 1b 1626 1627 ldr r4, [sp, #40] 1628 subs r12, r12, #1 1629 add r2, r2, r3 1630 add r0, r0, r1 1631 sub r2, r2, r4 1632 1633 bne 1b 1634 pop {r1, r4-r11, pc} 1635 endfunc