repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * Copyright (c) 2008 Mans Rullgard <mans@mansr.com> | |
| 3 | * Copyright (c) 2013 Janne Grunau <janne-libav@jannau.net> | |
| 4 | * | |
| 5 | * This file is part of FFmpeg. | |
| 6 | * | |
| 7 | * FFmpeg is free software; you can redistribute it and/or | |
| 8 | * modify it under the terms of the GNU Lesser General Public | |
| 9 | * License as published by the Free Software Foundation; either | |
| 10 | * version 2.1 of the License, or (at your option) any later version. | |
| 11 | * | |
| 12 | * FFmpeg is distributed in the hope that it will be useful, | |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 15 | * Lesser General Public License for more details. | |
| 16 | * | |
| 17 | * You should have received a copy of the GNU Lesser General Public | |
| 18 | * License along with FFmpeg; if not, write to the Free Software | |
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 20 | */ | |
| 21 | ||
| 22 | #include "libavutil/aarch64/asm.S" | |
| 23 | #include "neon.S" | |
| 24 | ||
| 25 | .macro h264_loop_filter_start | |
| 26 | cmp w2, #0 | |
| 27 | ldr w6, [x4] | |
| 28 | ccmp w3, #0, #0, ne | |
| 29 | mov v24.S[0], w6 | |
| 30 | and w6, w6, w6, lsl #16 | |
| 31 | b.eq 1f | |
| 32 | ands w6, w6, w6, lsl #8 | |
| 33 | b.ge 2f | |
| 34 | 1: | |
| 35 | ret | |
| 36 | 2: | |
| 37 | .endm | |
| 38 | ||
| 39 | .macro h264_loop_filter_luma | |
| 40 | dup v22.16B, w2 // alpha | |
| 41 | uxtl v24.8H, v24.8B | |
| 42 | uabd v21.16B, v16.16B, v0.16B // abs(p0 - q0) | |
| 43 | uxtl v24.4S, v24.4H | |
| 44 | uabd v28.16B, v18.16B, v16.16B // abs(p1 - p0) | |
| 45 | sli v24.8H, v24.8H, #8 | |
| 46 | uabd v30.16B, v2.16B, v0.16B // abs(q1 - q0) | |
| 47 | sli v24.4S, v24.4S, #16 | |
| 48 | cmhi v21.16B, v22.16B, v21.16B // < alpha | |
| 49 | dup v22.16B, w3 // beta | |
| 50 | cmlt v23.16B, v24.16B, #0 | |
| 51 | cmhi v28.16B, v22.16B, v28.16B // < beta | |
| 52 | cmhi v30.16B, v22.16B, v30.16B // < beta | |
| 53 | bic v21.16B, v21.16B, v23.16B | |
| 54 | uabd v17.16B, v20.16B, v16.16B // abs(p2 - p0) | |
| 55 | and v21.16B, v21.16B, v28.16B | |
| 56 | uabd v19.16B, v4.16B, v0.16B // abs(q2 - q0) | |
| 57 | cmhi v17.16B, v22.16B, v17.16B // < beta | |
| 58 | and v21.16B, v21.16B, v30.16B | |
| 59 | cmhi v19.16B, v22.16B, v19.16B // < beta | |
| 60 | and v17.16B, v17.16B, v21.16B | |
| 61 | and v19.16B, v19.16B, v21.16B | |
| 62 | and v24.16B, v24.16B, v21.16B | |
| 63 | urhadd v28.16B, v16.16B, v0.16B | |
| 64 | sub v21.16B, v24.16B, v17.16B | |
| 65 | uqadd v23.16B, v18.16B, v24.16B | |
| 66 | uhadd v20.16B, v20.16B, v28.16B | |
| 67 | sub v21.16B, v21.16B, v19.16B | |
| 68 | uhadd v28.16B, v4.16B, v28.16B | |
| 69 | umin v23.16B, v23.16B, v20.16B | |
| 70 | uqsub v22.16B, v18.16B, v24.16B | |
| 71 | uqadd v4.16B, v2.16B, v24.16B | |
| 72 | umax v23.16B, v23.16B, v22.16B | |
| 73 | uqsub v22.16B, v2.16B, v24.16B | |
| 74 | umin v28.16B, v4.16B, v28.16B | |
| 75 | uxtl v4.8H, v0.8B | |
| 76 | umax v28.16B, v28.16B, v22.16B | |
| 77 | uxtl2 v20.8H, v0.16B | |
| 78 | usubw v4.8H, v4.8H, v16.8B | |
| 79 | usubw2 v20.8H, v20.8H, v16.16B | |
| 80 | shl v4.8H, v4.8H, #2 | |
| 81 | shl v20.8H, v20.8H, #2 | |
| 82 | uaddw v4.8H, v4.8H, v18.8B | |
| 83 | uaddw2 v20.8H, v20.8H, v18.16B | |
| 84 | usubw v4.8H, v4.8H, v2.8B | |
| 85 | usubw2 v20.8H, v20.8H, v2.16B | |
| 86 | rshrn v4.8B, v4.8H, #3 | |
| 87 | rshrn2 v4.16B, v20.8H, #3 | |
| 88 | bsl v17.16B, v23.16B, v18.16B | |
| 89 | bsl v19.16B, v28.16B, v2.16B | |
| 90 | neg v23.16B, v21.16B | |
| 91 | uxtl v28.8H, v16.8B | |
| 92 | smin v4.16B, v4.16B, v21.16B | |
| 93 | uxtl2 v21.8H, v16.16B | |
| 94 | smax v4.16B, v4.16B, v23.16B | |
| 95 | uxtl v22.8H, v0.8B | |
| 96 | uxtl2 v24.8H, v0.16B | |
| 97 | saddw v28.8H, v28.8H, v4.8B | |
| 98 | saddw2 v21.8H, v21.8H, v4.16B | |
| 99 | ssubw v22.8H, v22.8H, v4.8B | |
| 100 | ssubw2 v24.8H, v24.8H, v4.16B | |
| 101 | sqxtun v16.8B, v28.8H | |
| 102 | sqxtun2 v16.16B, v21.8H | |
| 103 | sqxtun v0.8B, v22.8H | |
| 104 | sqxtun2 v0.16B, v24.8H | |
| 105 | .endm | |
| 106 | ||
| 107 | function ff_h264_v_loop_filter_luma_neon, export=1 | |
| 108 | h264_loop_filter_start | |
| 109 | sxtw x1, w1 | |
| 110 | ||
| 111 | ld1 {v0.16B}, [x0], x1 | |
| 112 | ld1 {v2.16B}, [x0], x1 | |
| 113 | ld1 {v4.16B}, [x0], x1 | |
| 114 | sub x0, x0, x1, lsl #2 | |
| 115 | sub x0, x0, x1, lsl #1 | |
| 116 | ld1 {v20.16B}, [x0], x1 | |
| 117 | ld1 {v18.16B}, [x0], x1 | |
| 118 | ld1 {v16.16B}, [x0], x1 | |
| 119 | ||
| 120 | h264_loop_filter_luma | |
| 121 | ||
| 122 | sub x0, x0, x1, lsl #1 | |
| 123 | st1 {v17.16B}, [x0], x1 | |
| 124 | st1 {v16.16B}, [x0], x1 | |
| 125 | st1 {v0.16B}, [x0], x1 | |
| 126 | st1 {v19.16B}, [x0] | |
| 127 | ||
| 128 | ret | |
| 129 | endfunc | |
| 130 | ||
| 131 | function ff_h264_h_loop_filter_luma_neon, export=1 | |
| 132 | h264_loop_filter_start | |
| 133 | ||
| 134 | sub x0, x0, #4 | |
| 135 | ld1 {v6.8B}, [x0], x1 | |
| 136 | ld1 {v20.8B}, [x0], x1 | |
| 137 | ld1 {v18.8B}, [x0], x1 | |
| 138 | ld1 {v16.8B}, [x0], x1 | |
| 139 | ld1 {v0.8B}, [x0], x1 | |
| 140 | ld1 {v2.8B}, [x0], x1 | |
| 141 | ld1 {v4.8B}, [x0], x1 | |
| 142 | ld1 {v26.8B}, [x0], x1 | |
| 143 | ld1 {v6.D}[1], [x0], x1 | |
| 144 | ld1 {v20.D}[1], [x0], x1 | |
| 145 | ld1 {v18.D}[1], [x0], x1 | |
| 146 | ld1 {v16.D}[1], [x0], x1 | |
| 147 | ld1 {v0.D}[1], [x0], x1 | |
| 148 | ld1 {v2.D}[1], [x0], x1 | |
| 149 | ld1 {v4.D}[1], [x0], x1 | |
| 150 | ld1 {v26.D}[1], [x0], x1 | |
| 151 | ||
| 152 | transpose_8x16B v6, v20, v18, v16, v0, v2, v4, v26, v21, v23 | |
| 153 | ||
| 154 | h264_loop_filter_luma | |
| 155 | ||
| 156 | transpose_4x16B v17, v16, v0, v19, v21, v23, v25, v27 | |
| 157 | ||
| 158 | sub x0, x0, x1, lsl #4 | |
| 159 | add x0, x0, #2 | |
| 160 | st1 {v17.S}[0], [x0], x1 | |
| 161 | st1 {v16.S}[0], [x0], x1 | |
| 162 | st1 {v0.S}[0], [x0], x1 | |
| 163 | st1 {v19.S}[0], [x0], x1 | |
| 164 | st1 {v17.S}[1], [x0], x1 | |
| 165 | st1 {v16.S}[1], [x0], x1 | |
| 166 | st1 {v0.S}[1], [x0], x1 | |
| 167 | st1 {v19.S}[1], [x0], x1 | |
| 168 | st1 {v17.S}[2], [x0], x1 | |
| 169 | st1 {v16.S}[2], [x0], x1 | |
| 170 | st1 {v0.S}[2], [x0], x1 | |
| 171 | st1 {v19.S}[2], [x0], x1 | |
| 172 | st1 {v17.S}[3], [x0], x1 | |
| 173 | st1 {v16.S}[3], [x0], x1 | |
| 174 | st1 {v0.S}[3], [x0], x1 | |
| 175 | st1 {v19.S}[3], [x0], x1 | |
| 176 | ||
| 177 | ret | |
| 178 | endfunc | |
| 179 | ||
| 180 | .macro h264_loop_filter_chroma | |
| 181 | dup v22.8B, w2 // alpha | |
| 182 | uxtl v24.8H, v24.8B | |
| 183 | uabd v26.8B, v16.8B, v0.8B // abs(p0 - q0) | |
| 184 | uxtl v4.8H, v0.8B | |
| 185 | uabd v28.8B, v18.8B, v16.8B // abs(p1 - p0) | |
| 186 | usubw v4.8H, v4.8H, v16.8B | |
| 187 | sli v24.8H, v24.8H, #8 | |
| 188 | shl v4.8H, v4.8H, #2 | |
| 189 | uabd v30.8B, v2.8B, v0.8B // abs(q1 - q0) | |
| 190 | uaddw v4.8H, v4.8H, v18.8B | |
| 191 | cmhi v26.8B, v22.8B, v26.8B // < alpha | |
| 192 | usubw v4.8H, v4.8H, v2.8B | |
| 193 | dup v22.8B, w3 // beta | |
| 194 | rshrn v4.8B, v4.8H, #3 | |
| 195 | cmhi v28.8B, v22.8B, v28.8B // < beta | |
| 196 | cmhi v30.8B, v22.8B, v30.8B // < beta | |
| 197 | smin v4.8B, v4.8B, v24.8B | |
| 198 | neg v25.8B, v24.8B | |
| 199 | and v26.8B, v26.8B, v28.8B | |
| 200 | smax v4.8B, v4.8B, v25.8B | |
| 201 | and v26.8B, v26.8B, v30.8B | |
| 202 | uxtl v22.8H, v0.8B | |
| 203 | and v4.8B, v4.8B, v26.8B | |
| 204 | uxtl v28.8H, v16.8B | |
| 205 | saddw v28.8H, v28.8H, v4.8B | |
| 206 | ssubw v22.8H, v22.8H, v4.8B | |
| 207 | sqxtun v16.8B, v28.8H | |
| 208 | sqxtun v0.8B, v22.8H | |
| 209 | .endm | |
| 210 | ||
| 211 | function ff_h264_v_loop_filter_chroma_neon, export=1 | |
| 212 | h264_loop_filter_start | |
| 213 | ||
| 214 | sub x0, x0, x1, lsl #1 | |
| 215 | ld1 {v18.8B}, [x0], x1 | |
| 216 | ld1 {v16.8B}, [x0], x1 | |
| 217 | ld1 {v0.8B}, [x0], x1 | |
| 218 | ld1 {v2.8B}, [x0] | |
| 219 | ||
| 220 | h264_loop_filter_chroma | |
| 221 | ||
| 222 | sub x0, x0, x1, lsl #1 | |
| 223 | st1 {v16.8B}, [x0], x1 | |
| 224 | st1 {v0.8B}, [x0], x1 | |
| 225 | ||
| 226 | ret | |
| 227 | endfunc | |
| 228 | ||
| 229 | function ff_h264_h_loop_filter_chroma_neon, export=1 | |
| 230 | h264_loop_filter_start | |
| 231 | ||
| 232 | sub x0, x0, #2 | |
| 233 | ld1 {v18.S}[0], [x0], x1 | |
| 234 | ld1 {v16.S}[0], [x0], x1 | |
| 235 | ld1 {v0.S}[0], [x0], x1 | |
| 236 | ld1 {v2.S}[0], [x0], x1 | |
| 237 | ld1 {v18.S}[1], [x0], x1 | |
| 238 | ld1 {v16.S}[1], [x0], x1 | |
| 239 | ld1 {v0.S}[1], [x0], x1 | |
| 240 | ld1 {v2.S}[1], [x0], x1 | |
| 241 | ||
| 242 | transpose_4x8B v18, v16, v0, v2, v28, v29, v30, v31 | |
| 243 | ||
| 244 | h264_loop_filter_chroma | |
| 245 | ||
| 246 | transpose_4x8B v18, v16, v0, v2, v28, v29, v30, v31 | |
| 247 | ||
| 248 | sub x0, x0, x1, lsl #3 | |
| 249 | st1 {v18.S}[0], [x0], x1 | |
| 250 | st1 {v16.S}[0], [x0], x1 | |
| 251 | st1 {v0.S}[0], [x0], x1 | |
| 252 | st1 {v2.S}[0], [x0], x1 | |
| 253 | st1 {v18.S}[1], [x0], x1 | |
| 254 | st1 {v16.S}[1], [x0], x1 | |
| 255 | st1 {v0.S}[1], [x0], x1 | |
| 256 | st1 {v2.S}[1], [x0], x1 | |
| 257 | ||
| 258 | ret | |
| 259 | endfunc | |
| 260 | ||
| 261 | .macro biweight_16 macs, macd | |
| 262 | dup v0.16B, w5 | |
| 263 | dup v1.16B, w6 | |
| 264 | mov v4.16B, v16.16B | |
| 265 | mov v6.16B, v16.16B | |
| 266 | 1: subs w3, w3, #2 | |
| 267 | ld1 {v20.16B}, [x0], x2 | |
| 268 | \macd v4.8H, v0.8B, v20.8B | |
| 269 | \macd\()2 v6.8H, v0.16B, v20.16B | |
| 270 | ld1 {v22.16B}, [x1], x2 | |
| 271 | \macs v4.8H, v1.8B, v22.8B | |
| 272 | \macs\()2 v6.8H, v1.16B, v22.16B | |
| 273 | mov v24.16B, v16.16B | |
| 274 | ld1 {v28.16B}, [x0], x2 | |
| 275 | mov v26.16B, v16.16B | |
| 276 | \macd v24.8H, v0.8B, v28.8B | |
| 277 | \macd\()2 v26.8H, v0.16B, v28.16B | |
| 278 | ld1 {v30.16B}, [x1], x2 | |
| 279 | \macs v24.8H, v1.8B, v30.8B | |
| 280 | \macs\()2 v26.8H, v1.16B, v30.16B | |
| 281 | sshl v4.8H, v4.8H, v18.8H | |
| 282 | sshl v6.8H, v6.8H, v18.8H | |
| 283 | sqxtun v4.8B, v4.8H | |
| 284 | sqxtun2 v4.16B, v6.8H | |
| 285 | sshl v24.8H, v24.8H, v18.8H | |
| 286 | sshl v26.8H, v26.8H, v18.8H | |
| 287 | sqxtun v24.8B, v24.8H | |
| 288 | sqxtun2 v24.16B, v26.8H | |
| 289 | mov v6.16B, v16.16B | |
| 290 | st1 {v4.16B}, [x7], x2 | |
| 291 | mov v4.16B, v16.16B | |
| 292 | st1 {v24.16B}, [x7], x2 | |
| 293 | b.ne 1b | |
| 294 | ret | |
| 295 | .endm | |
| 296 | ||
| 297 | .macro biweight_8 macs, macd | |
| 298 | dup v0.8B, w5 | |
| 299 | dup v1.8B, w6 | |
| 300 | mov v2.16B, v16.16B | |
| 301 | mov v20.16B, v16.16B | |
| 302 | 1: subs w3, w3, #2 | |
| 303 | ld1 {v4.8B}, [x0], x2 | |
| 304 | \macd v2.8H, v0.8B, v4.8B | |
| 305 | ld1 {v5.8B}, [x1], x2 | |
| 306 | \macs v2.8H, v1.8B, v5.8B | |
| 307 | ld1 {v6.8B}, [x0], x2 | |
| 308 | \macd v20.8H, v0.8B, v6.8B | |
| 309 | ld1 {v7.8B}, [x1], x2 | |
| 310 | \macs v20.8H, v1.8B, v7.8B | |
| 311 | sshl v2.8H, v2.8H, v18.8H | |
| 312 | sqxtun v2.8B, v2.8H | |
| 313 | sshl v20.8H, v20.8H, v18.8H | |
| 314 | sqxtun v4.8B, v20.8H | |
| 315 | mov v20.16B, v16.16B | |
| 316 | st1 {v2.8B}, [x7], x2 | |
| 317 | mov v2.16B, v16.16B | |
| 318 | st1 {v4.8B}, [x7], x2 | |
| 319 | b.ne 1b | |
| 320 | ret | |
| 321 | .endm | |
| 322 | ||
| 323 | .macro biweight_4 macs, macd | |
| 324 | dup v0.8B, w5 | |
| 325 | dup v1.8B, w6 | |
| 326 | mov v2.16B, v16.16B | |
| 327 | mov v20.16B,v16.16B | |
| 328 | 1: subs w3, w3, #4 | |
| 329 | ld1 {v4.S}[0], [x0], x2 | |
| 330 | ld1 {v4.S}[1], [x0], x2 | |
| 331 | \macd v2.8H, v0.8B, v4.8B | |
| 332 | ld1 {v5.S}[0], [x1], x2 | |
| 333 | ld1 {v5.S}[1], [x1], x2 | |
| 334 | \macs v2.8H, v1.8B, v5.8B | |
| 335 | b.lt 2f | |
| 336 | ld1 {v6.S}[0], [x0], x2 | |
| 337 | ld1 {v6.S}[1], [x0], x2 | |
| 338 | \macd v20.8H, v0.8B, v6.8B | |
| 339 | ld1 {v7.S}[0], [x1], x2 | |
| 340 | ld1 {v7.S}[1], [x1], x2 | |
| 341 | \macs v20.8H, v1.8B, v7.8B | |
| 342 | sshl v2.8H, v2.8H, v18.8H | |
| 343 | sqxtun v2.8B, v2.8H | |
| 344 | sshl v20.8H, v20.8H, v18.8H | |
| 345 | sqxtun v4.8B, v20.8H | |
| 346 | mov v20.16B, v16.16B | |
| 347 | st1 {v2.S}[0], [x7], x2 | |
| 348 | st1 {v2.S}[1], [x7], x2 | |
| 349 | mov v2.16B, v16.16B | |
| 350 | st1 {v4.S}[0], [x7], x2 | |
| 351 | st1 {v4.S}[1], [x7], x2 | |
| 352 | b.ne 1b | |
| 353 | ret | |
| 354 | 2: sshl v2.8H, v2.8H, v18.8H | |
| 355 | sqxtun v2.8B, v2.8H | |
| 356 | st1 {v2.S}[0], [x7], x2 | |
| 357 | st1 {v2.S}[1], [x7], x2 | |
| 358 | ret | |
| 359 | .endm | |
| 360 | ||
| 361 | .macro biweight_func w | |
| 362 | function ff_biweight_h264_pixels_\w\()_neon, export=1 | |
| 363 | sxtw x2, w2 | |
| 364 | lsr w8, w5, #31 | |
| 365 | add w7, w7, #1 | |
| 366 | eor w8, w8, w6, lsr #30 | |
| 367 | orr w7, w7, #1 | |
| 368 | dup v18.8H, w4 | |
| 369 | lsl w7, w7, w4 | |
| 370 | not v18.16B, v18.16B | |
| 371 | dup v16.8H, w7 | |
| 372 | mov x7, x0 | |
| 373 | cbz w8, 10f | |
| 374 | subs w8, w8, #1 | |
| 375 | b.eq 20f | |
| 376 | subs w8, w8, #1 | |
| 377 | b.eq 30f | |
| 378 | b 40f | |
| 379 | 10: biweight_\w umlal, umlal | |
| 380 | 20: neg w5, w5 | |
| 381 | biweight_\w umlal, umlsl | |
| 382 | 30: neg w5, w5 | |
| 383 | neg w6, w6 | |
| 384 | biweight_\w umlsl, umlsl | |
| 385 | 40: neg w6, w6 | |
| 386 | biweight_\w umlsl, umlal | |
| 387 | endfunc | |
| 388 | .endm | |
| 389 | ||
| 390 | biweight_func 16 | |
| 391 | biweight_func 8 | |
| 392 | biweight_func 4 | |
| 393 | ||
| 394 | .macro weight_16 add | |
| 395 | dup v0.16B, w4 | |
| 396 | 1: subs w2, w2, #2 | |
| 397 | ld1 {v20.16B}, [x0], x1 | |
| 398 | umull v4.8H, v0.8B, v20.8B | |
| 399 | umull2 v6.8H, v0.16B, v20.16B | |
| 400 | ld1 {v28.16B}, [x0], x1 | |
| 401 | umull v24.8H, v0.8B, v28.8B | |
| 402 | umull2 v26.8H, v0.16B, v28.16B | |
| 403 | \add v4.8H, v16.8H, v4.8H | |
| 404 | srshl v4.8H, v4.8H, v18.8H | |
| 405 | \add v6.8H, v16.8H, v6.8H | |
| 406 | srshl v6.8H, v6.8H, v18.8H | |
| 407 | sqxtun v4.8B, v4.8H | |
| 408 | sqxtun2 v4.16B, v6.8H | |
| 409 | \add v24.8H, v16.8H, v24.8H | |
| 410 | srshl v24.8H, v24.8H, v18.8H | |
| 411 | \add v26.8H, v16.8H, v26.8H | |
| 412 | srshl v26.8H, v26.8H, v18.8H | |
| 413 | sqxtun v24.8B, v24.8H | |
| 414 | sqxtun2 v24.16B, v26.8H | |
| 415 | st1 {v4.16B}, [x5], x1 | |
| 416 | st1 {v24.16B}, [x5], x1 | |
| 417 | b.ne 1b | |
| 418 | ret | |
| 419 | .endm | |
| 420 | ||
| 421 | .macro weight_8 add | |
| 422 | dup v0.8B, w4 | |
| 423 | 1: subs w2, w2, #2 | |
| 424 | ld1 {v4.8B}, [x0], x1 | |
| 425 | umull v2.8H, v0.8B, v4.8B | |
| 426 | ld1 {v6.8B}, [x0], x1 | |
| 427 | umull v20.8H, v0.8B, v6.8B | |
| 428 | \add v2.8H, v16.8H, v2.8H | |
| 429 | srshl v2.8H, v2.8H, v18.8H | |
| 430 | sqxtun v2.8B, v2.8H | |
| 431 | \add v20.8H, v16.8H, v20.8H | |
| 432 | srshl v20.8H, v20.8H, v18.8H | |
| 433 | sqxtun v4.8B, v20.8H | |
| 434 | st1 {v2.8B}, [x5], x1 | |
| 435 | st1 {v4.8B}, [x5], x1 | |
| 436 | b.ne 1b | |
| 437 | ret | |
| 438 | .endm | |
| 439 | ||
| 440 | .macro weight_4 add | |
| 441 | dup v0.8B, w4 | |
| 442 | 1: subs w2, w2, #4 | |
| 443 | ld1 {v4.S}[0], [x0], x1 | |
| 444 | ld1 {v4.S}[1], [x0], x1 | |
| 445 | umull v2.8H, v0.8B, v4.8B | |
| 446 | b.lt 2f | |
| 447 | ld1 {v6.S}[0], [x0], x1 | |
| 448 | ld1 {v6.S}[1], [x0], x1 | |
| 449 | umull v20.8H, v0.8B, v6.8B | |
| 450 | \add v2.8H, v16.8H, v2.8H | |
| 451 | srshl v2.8H, v2.8H, v18.8H | |
| 452 | sqxtun v2.8B, v2.8H | |
| 453 | \add v20.8H, v16.8H, v20.8H | |
| 454 | srshl v20.8H, v20.8h, v18.8H | |
| 455 | sqxtun v4.8B, v20.8H | |
| 456 | st1 {v2.S}[0], [x5], x1 | |
| 457 | st1 {v2.S}[1], [x5], x1 | |
| 458 | st1 {v4.S}[0], [x5], x1 | |
| 459 | st1 {v4.S}[1], [x5], x1 | |
| 460 | b.ne 1b | |
| 461 | ret | |
| 462 | 2: \add v2.8H, v16.8H, v2.8H | |
| 463 | srshl v2.8H, v2.8H, v18.8H | |
| 464 | sqxtun v2.8B, v2.8H | |
| 465 | st1 {v2.S}[0], [x5], x1 | |
| 466 | st1 {v2.S}[1], [x5], x1 | |
| 467 | ret | |
| 468 | .endm | |
| 469 | ||
| 470 | .macro weight_func w | |
| 471 | function ff_weight_h264_pixels_\w\()_neon, export=1 | |
| 472 | sxtw x1, w1 | |
| 473 | cmp w3, #1 | |
| 474 | mov w6, #1 | |
| 475 | lsl w5, w5, w3 | |
| 476 | dup v16.8H, w5 | |
| 477 | mov x5, x0 | |
| 478 | b.le 20f | |
| 479 | sub w6, w6, w3 | |
| 480 | dup v18.8H, w6 | |
| 481 | cmp w4, #0 | |
| 482 | b.lt 10f | |
| 483 | weight_\w shadd | |
| 484 | 10: neg w4, w4 | |
| 485 | weight_\w shsub | |
| 486 | 20: neg w6, w3 | |
| 487 | dup v18.8H, w6 | |
| 488 | cmp w4, #0 | |
| 489 | b.lt 10f | |
| 490 | weight_\w add | |
| 491 | 10: neg w4, w4 | |
| 492 | weight_\w sub | |
| 493 | endfunc | |
| 494 | .endm | |
| 495 | ||
| 496 | weight_func 16 | |
| 497 | weight_func 8 | |
| 498 | weight_func 4 |