/* * Copyright (c) 2016 Google Inc. * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "libavutil/aarch64/asm.S" #include "neon.S" // The main loop filter macro is templated and can produce filters for // vectors of 8 or 16 bytes. The register mapping throughout the filter // is close to identical to the arm version (please try to maintain this, // if either is changed!). When the arm version uses e.g. d20 for the // input variable p3, the aarch64 version uses v20.8b or v20.16b, depending // on vector length. // // The number of elements in the vector is passed in via the macro parameter // \sz, which is either .8b or .16b. For simple instructions that doesn't // lengthen or narrow things, this can easily be templated like this: // uabd v4\sz, v20\sz, v21\sz // // For instructions that lengthen or narrow content, the arm version would // have used q registers. For these instructions, we have macros that expand // into either a single e.g. uaddl instruction, or into a uaddl + uaddl2 // pair, depending on the \sz parameter. Wherever the arm version would have // used a q register, these macros instead take two v registers, i.e. q3 // is mapped to v6+v7. For the case with 8 byte input vectors, such a // lengthening operation is only stored in v6.8h (what was in q3 in the arm // case), while the 16 byte input vectors will use v6.8h + v7.8h. // Such a macro invocation would look like this: // uaddl_sz v8.8h, v9.8h, v17, v18, \sz // // That is, in the 8 byte input vector case, the second register in these // register pairs will be unused. // Unfortunately, this makes the code quite hard to read. For readability, // see the arm version instead. .macro uabdl_sz dst1, dst2, in1, in2, sz uabdl \dst1, \in1\().8b, \in2\().8b .ifc \sz, .16b uabdl2 \dst2, \in1\().16b, \in2\().16b .endif .endm .macro add_sz dst1, dst2, in1, in2, in3, in4, sz add \dst1, \in1, \in3 .ifc \sz, .16b add \dst2, \in2, \in4 .endif .endm .macro sub_sz dst1, dst2, in1, in2, in3, in4, sz sub \dst1, \in1, \in3 .ifc \sz, .16b sub \dst2, \in2, \in4 .endif .endm .macro uaddw_sz dst1, dst2, in1, in2, in3, sz uaddw \dst1, \in1, \in3\().8b .ifc \sz, .16b uaddw2 \dst2, \in2, \in3\().16b .endif .endm .macro usubw_sz dst1, dst2, in1, in2, in3, sz usubw \dst1, \in1, \in3\().8b .ifc \sz, .16b usubw2 \dst2, \in2, \in3\().16b .endif .endm .macro cmhs_sz dst1, dst2, in1, in2, in3, in4, sz cmhs \dst1, \in1, \in3 .ifc \sz, .16b cmhs \dst2, \in2, \in4 .endif .endm .macro xtn_sz dst, in1, in2, sz xtn \dst\().8b, \in1 .ifc \sz, .16b xtn2 \dst\().16b, \in2 .endif .endm .macro usubl_sz dst1, dst2, in1, in2, sz usubl \dst1, \in1\().8b, \in2\().8b .ifc \sz, .16b usubl2 \dst2, \in1\().16b, \in2\().16b .endif .endm .macro sqxtn_sz dst, in1, in2, sz sqxtn \dst\().8b, \in1 .ifc \sz, .16b sqxtn2 \dst\().16b, \in2 .endif .endm .macro sqxtun_sz dst, in1, in2, sz sqxtun \dst\().8b, \in1 .ifc \sz, .16b sqxtun2 \dst\().16b, \in2 .endif .endm .macro mul_sz dst1, dst2, in1, in2, in3, in4, sz mul \dst1, \in1, \in3 .ifc \sz, .16b mul \dst2, \in2, \in4 .endif .endm .macro saddw_sz dst1, dst2, in1, in2, in3, sz saddw \dst1, \in1, \in3\().8b .ifc \sz, .16b saddw2 \dst2, \in2, \in3\().16b .endif .endm .macro ssubw_sz dst1, dst2, in1, in2, in3, sz ssubw \dst1, \in1, \in3\().8b .ifc \sz, .16b ssubw2 \dst2, \in2, \in3\().16b .endif .endm .macro uxtl_sz dst1, dst2, in, sz uxtl \dst1, \in\().8b .ifc \sz, .16b uxtl2 \dst2, \in\().16b .endif .endm .macro uaddl_sz dst1, dst2, in1, in2, sz uaddl \dst1, \in1\().8b, \in2\().8b .ifc \sz, .16b uaddl2 \dst2, \in1\().16b, \in2\().16b .endif .endm .macro rshrn_sz dst, in1, in2, shift, sz rshrn \dst\().8b, \in1, \shift .ifc \sz, .16b rshrn2 \dst\().16b, \in2, \shift .endif .endm .macro ushll_sz dst1, dst2, in, shift, sz ushll \dst1, \in\().8b, \shift .ifc \sz, .16b ushll2 \dst2, \in\().16b, \shift .endif .endm // The input to and output from this macro is in the registers v16-v31, // and v0-v7 are used as scratch registers. // p7 = v16 .. p3 = v20, p0 = v23, q0 = v24, q3 = v27, q7 = v31 // Depending on the width of the loop filter, we either use v16-v19 // and v28-v31 as temp registers, or v8-v15. // When comparing to the arm version, tmpq1 == tmp1 + tmp2, // tmpq2 == tmp3 + tmp4, etc. .macro loop_filter wd, sz, mix, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7, tmp8 .if \mix == 0 dup v0.8h, w2 // E dup v1.8h, w2 // E dup v2\sz, w3 // I dup v3\sz, w4 // H .else dup v0.8h, w2 // E dup v2.8b, w3 // I dup v3.8b, w4 // H lsr w6, w3, #8 lsr w7, w4, #8 ushr v1.8h, v0.8h, #8 // E dup v4.8b, w6 // I bic v0.8h, #255, lsl 8 // E dup v5.8b, w7 // H trn1 v2.2d, v2.2d, v4.2d trn1 v3.2d, v3.2d, v5.2d .endif uabd v4\sz, v20\sz, v21\sz // abs(p3 - p2) uabd v5\sz, v21\sz, v22\sz // abs(p2 - p1) uabd v6\sz, v22\sz, v23\sz // abs(p1 - p0) uabd v7\sz, v24\sz, v25\sz // abs(q0 - q1) uabd \tmp1\sz, v25\sz, v26\sz // abs(q1 - q2) uabd \tmp2\sz, v26\sz, v27\sz // abs(q2 - q3) umax v4\sz, v4\sz, v5\sz umax v5\sz, v6\sz, v7\sz umax \tmp1\sz, \tmp1\sz, \tmp2\sz uabdl_sz v6.8h, v7.8h, v23, v24, \sz // abs(p0 - q0) umax v4\sz, v4\sz, v5\sz add_sz v6.8h, v7.8h, v6.8h, v7.8h, v6.8h, v7.8h, \sz // abs(p0 - q0) * 2 uabd v5\sz, v22\sz, v25\sz // abs(p1 - q1) umax v4\sz, v4\sz, \tmp1\sz // max(abs(p3 - p2), ..., abs(q2 - q3)) ushr v5\sz, v5\sz, #1 cmhs v4\sz, v2\sz, v4\sz // max(abs()) <= I uaddw_sz v6.8h, v7.8h, v6.8h, v7.8h, v5, \sz // abs(p0 - q0) * 2 + abs(p1 - q1) >> 1 cmhs_sz v6.8h, v7.8h, v0.8h, v1.8h, v6.8h, v7.8h, \sz xtn_sz v5, v6.8h, v7.8h, \sz and v4\sz, v4\sz, v5\sz // fm mov x5, v4.d[0] .ifc \sz, .16b mov x6, v4.d[1] orr x5, x5, x6 .endif // If no pixels need filtering, just exit as soon as possible cbz x5, 9f .if \wd >= 8 movi v0\sz, #1 uabd v6\sz, v20\sz, v23\sz // abs(p3 - p0) uabd v2\sz, v21\sz, v23\sz // abs(p2 - p0) uabd v1\sz, v22\sz, v23\sz // abs(p1 - p0) uabd \tmp1\sz, v25\sz, v24\sz // abs(q1 - q0) uabd \tmp2\sz, v26\sz, v24\sz // abs(q2 - q0) uabd \tmp3\sz, v27\sz, v24\sz // abs(q3 - q0) umax v6\sz, v6\sz, v2\sz umax v1\sz, v1\sz, \tmp1\sz umax \tmp2\sz, \tmp2\sz, \tmp3\sz .if \wd == 16 uabd v7\sz, v16\sz, v23\sz // abs(p7 - p0) umax v6\sz, v6\sz, v1\sz uabd v2\sz, v17\sz, v23\sz // abs(p6 - p0) umax v6\sz, v6\sz, \tmp2\sz uabd v1\sz, v18\sz, v23\sz // abs(p5 - p0) cmhs v6\sz, v0\sz, v6\sz // flat8in uabd v8\sz, v19\sz, v23\sz // abs(p4 - p0) and v6\sz, v6\sz, v4\sz // flat8in && fm uabd v9\sz, v28\sz, v24\sz // abs(q4 - q0) bic v4\sz, v4\sz, v6\sz // fm && !flat8in uabd v10\sz, v29\sz, v24\sz // abs(q5 - q0) uabd v11\sz, v30\sz, v24\sz // abs(q6 - q0) uabd v12\sz, v31\sz, v24\sz // abs(q7 - q0) umax v7\sz, v7\sz, v2\sz umax v1\sz, v1\sz, v8\sz umax v9\sz, v9\sz, v10\sz umax v11\sz, v11\sz, v12\sz // The rest of the calculation of flat8out is interleaved below .else // The rest of the calculation of flat8in is interleaved below .endif .endif // Calculate the normal inner loop filter for 2 or 4 pixels uabd v5\sz, v22\sz, v23\sz // abs(p1 - p0) .if \wd == 16 umax v7\sz, v7\sz, v1\sz umax v9\sz, v9\sz, v11\sz .elseif \wd == 8 umax v6\sz, v6\sz, v1\sz .endif uabd v1\sz, v25\sz, v24\sz // abs(q1 - q0) .if \wd == 16 umax v7\sz, v7\sz, v9\sz .elseif \wd == 8 umax v6\sz, v6\sz, \tmp2\sz .endif usubl_sz \tmp1\().8h, \tmp2\().8h, v22, v25, \sz // p1 - q1 umax v5\sz, v5\sz, v1\sz // max(abs(p1 - p0), abs(q1 - q0)) .if \mix != 0 mov v1.d[0], x11 .endif usubl_sz \tmp3\().8h, \tmp4\().8h, v24, v23, \sz // q0 - p0 movi \tmp5\().8h, #3 .if \wd == 8 cmhs v6\sz, v0\sz, v6\sz // flat8in .endif .if \mix != 0 sxtl v1.8h, v1.8b .endif cmhi v5\sz, v5\sz, v3\sz // hev .if \wd == 8 // If a 4/8 or 8/4 mix is used, clear the relevant half of v6 .if \mix != 0 and v6\sz, v6\sz, v1.16b .endif and v6\sz, v6\sz, v4\sz // flat8in && fm .endif sqxtn_sz \tmp1, \tmp1\().8h, \tmp2\().8h, \sz // av_clip_int8(p1 - q1) .if \wd == 16 cmhs v7\sz, v0\sz, v7\sz // flat8out .elseif \wd == 8 bic v4\sz, v4\sz, v6\sz // fm && !flat8in .endif mvn v5\sz, v5\sz // !hev .if \wd == 16 and v7\sz, v7\sz, v6\sz // flat8out && flat8in && fm .endif and v5\sz, v5\sz, v4\sz // !hev && fm && !flat8in mul_sz \tmp3\().8h, \tmp4\().8h, \tmp3\().8h, \tmp4\().8h, \tmp5\().8h, \tmp5\().8h, \sz // 3 * (q0 - p0) bic \tmp1\sz, \tmp1\sz, v5\sz // if (!hev) av_clip_int8 = 0 movi v2\sz, #4 saddw_sz \tmp3\().8h, \tmp4\().8h, \tmp3\().8h, \tmp4\().8h, \tmp1, \sz // 3 * (q0 - p0) [+ av_clip_int8(p1 - q1)] movi v3\sz, #3 sqxtn_sz \tmp1, \tmp3\().8h, \tmp4\().8h, \sz // f .if \wd == 16 bic v6\sz, v6\sz, v7\sz // fm && flat8in && !flat8out .endif sqadd \tmp3\sz, \tmp1\sz, v2\sz // FFMIN(f + 4, 127) sqadd \tmp4\sz, \tmp1\sz, v3\sz // FFMIN(f + 3, 127) uxtl_sz v0.8h, v1.8h, v23, \sz // p0 sshr \tmp3\sz, \tmp3\sz, #3 // f1 sshr \tmp4\sz, \tmp4\sz, #3 // f2 uxtl_sz v2.8h, v3.8h, v24, \sz // q0 saddw_sz v0.8h, v1.8h, v0.8h, v1.8h, \tmp4, \sz // p0 + f2 ssubw_sz v2.8h, v3.8h, v2.8h, v3.8h, \tmp3, \sz // q0 - f1 sqxtun_sz v0, v0.8h, v1.8h, \sz // out p0 sqxtun_sz v1, v2.8h, v3.8h, \sz // out q0 srshr \tmp3\sz, \tmp3\sz, #1 // f = (f1 + 1) >> 1 bit v23\sz, v0\sz, v4\sz // if (fm && !flat8in) bit v24\sz, v1\sz, v4\sz uxtl_sz v0.8h, v1.8h, v22, \sz // p1 uxtl_sz v2.8h, v3.8h, v25, \sz // q1 saddw_sz v0.8h, v1.8h, v0.8h, v1.8h, \tmp3, \sz // p1 + f ssubw_sz v2.8h, v3.8h, v2.8h, v3.8h, \tmp3, \sz // q1 - f sqxtun_sz v0, v0.8h, v1.8h, \sz // out p1 sqxtun_sz v2, v2.8h, v3.8h, \sz // out q1 bit v22\sz, v0\sz, v5\sz // if (!hev && fm && !flat8in) bit v25\sz, v2\sz, v5\sz .if \wd >= 8 mov x5, v6.d[0] .ifc \sz, .16b mov x6, v6.d[1] orr x5, x5, x6 .endif // If no pixels need flat8in, jump to flat8out // (or to a writeout of the inner 4 pixels, for wd=8) cbz x5, 6f // flat8in uaddl_sz \tmp1\().8h, \tmp2\().8h, v20, v21, \sz uaddl_sz \tmp3\().8h, \tmp4\().8h, v22, v25, \sz uaddl_sz \tmp5\().8h, \tmp6\().8h, v20, v22, \sz uaddl_sz \tmp7\().8h, \tmp8\().8h, v23, v26, \sz add_sz v0.8h, v1.8h, \tmp1\().8h, \tmp2\().8h, \tmp1\().8h, \tmp2\().8h, \sz uaddw_sz v0.8h, v1.8h, v0.8h, v1.8h, v23, \sz uaddw_sz v0.8h, v1.8h, v0.8h, v1.8h, v24, \sz add_sz v0.8h, v1.8h, v0.8h, v1.8h, \tmp5\().8h, \tmp6\().8h, \sz sub_sz \tmp3\().8h, \tmp4\().8h, \tmp3\().8h, \tmp4\().8h, \tmp1\().8h, \tmp2\().8h, \sz sub_sz \tmp7\().8h, \tmp8\().8h, \tmp7\().8h, \tmp8\().8h, \tmp5\().8h, \tmp6\().8h, \sz rshrn_sz v2, v0.8h, v1.8h, #3, \sz // out p2 add_sz v0.8h, v1.8h, v0.8h, v1.8h, \tmp3\().8h, \tmp4\().8h, \sz uaddl_sz \tmp1\().8h, \tmp2\().8h, v20, v23, \sz uaddl_sz \tmp3\().8h, \tmp4\().8h, v24, v27, \sz rshrn_sz v3, v0.8h, v1.8h, #3, \sz // out p1 add_sz v0.8h, v1.8h, v0.8h, v1.8h, \tmp7\().8h, \tmp8\().8h, \sz sub_sz \tmp3\().8h, \tmp4\().8h, \tmp3\().8h, \tmp4\().8h, \tmp1\().8h, \tmp2\().8h, \sz uaddl_sz \tmp5\().8h, \tmp6\().8h, v21, v24, \sz uaddl_sz \tmp7\().8h, \tmp8\().8h, v25, v27, \sz rshrn_sz v4, v0.8h, v1.8h, #3, \sz // out p0 add_sz v0.8h, v1.8h, v0.8h, v1.8h, \tmp3\().8h, \tmp4\().8h, \sz sub_sz \tmp7\().8h, \tmp8\().8h, \tmp7\().8h, \tmp8\().8h, \tmp5\().8h, \tmp6\().8h, \sz uaddl_sz \tmp1\().8h, \tmp2\().8h, v22, v25, \sz uaddl_sz \tmp3\().8h, \tmp4\().8h, v26, v27, \sz rshrn_sz v5, v0.8h, v1.8h, #3, \sz // out q0 add_sz v0.8h, v1.8h, v0.8h, v1.8h, \tmp7\().8h, \tmp8\().8h, \sz sub_sz \tmp3\().8h, \tmp4\().8h, \tmp3\().8h, \tmp4\().8h, \tmp1\().8h, \tmp2\().8h, \sz rshrn_sz \tmp5, v0.8h, v1.8h, #3, \sz // out q1 add_sz v0.8h, v1.8h, v0.8h, v1.8h, \tmp3\().8h, \tmp4\().8h, \sz // The output here is written back into the input registers. This doesn't // matter for the flat8part below, since we only update those pixels // which won't be touched below. bit v21\sz, v2\sz, v6\sz bit v22\sz, v3\sz, v6\sz bit v23\sz, v4\sz, v6\sz rshrn_sz \tmp6, v0.8h, v1.8h, #3, \sz // out q2 bit v24\sz, v5\sz, v6\sz bit v25\sz, \tmp5\sz, v6\sz bit v26\sz, \tmp6\sz, v6\sz .endif .if \wd == 16 6: orr v2\sz, v6\sz, v7\sz mov x5, v2.d[0] .ifc \sz, .16b mov x6, v2.d[1] orr x5, x5, x6 .endif // If no pixels needed flat8in nor flat8out, jump to a // writeout of the inner 4 pixels cbnz x5, 1f br x14 1: mov x5, v7.d[0] .ifc \sz, .16b mov x6, v7.d[1] orr x5, x5, x6 .endif // If no pixels need flat8out, jump to a writeout of the inner 6 pixels cbnz x5, 1f br x15 1: // flat8out // This writes all outputs into v2-v17 (skipping v6 and v16). // If this part is skipped, the output is read from v21-v26 (which is the input // to this section). ushll_sz v0.8h, v1.8h, v16, #3, \sz // 8 * v16 usubw_sz v0.8h, v1.8h, v0.8h, v1.8h, v16, \sz // 7 * v16 uaddw_sz v0.8h, v1.8h, v0.8h, v1.8h, v17, \sz uaddl_sz v8.8h, v9.8h, v17, v18, \sz uaddl_sz v10.8h, v11.8h, v19, v20, \sz add_sz v0.8h, v1.8h, v0.8h, v1.8h, v8.8h, v9.8h, \sz uaddl_sz v8.8h, v9.8h, v16, v17, \sz uaddl_sz v12.8h, v13.8h, v21, v22, \sz add_sz v0.8h, v1.8h, v0.8h, v1.8h, v10.8h, v11.8h, \sz uaddl_sz v10.8h, v11.8h, v18, v25, \sz uaddl_sz v14.8h, v15.8h, v23, v24, \sz sub_sz v10.8h, v11.8h, v10.8h, v11.8h, v8.8h, v9.8h, \sz add_sz v0.8h, v1.8h, v0.8h, v1.8h, v12.8h, v13.8h, \sz add_sz v0.8h, v1.8h, v0.8h, v1.8h, v14.8h, v15.8h, \sz uaddl_sz v12.8h, v13.8h, v16, v18, \sz uaddl_sz v14.8h, v15.8h, v19, v26, \sz rshrn_sz v2, v0.8h, v1.8h, #4, \sz add_sz v0.8h, v1.8h, v0.8h, v1.8h, v10.8h, v11.8h, \sz uaddl_sz v8.8h, v9.8h, v16, v19, \sz uaddl_sz v10.8h, v11.8h, v20, v27, \sz sub_sz v14.8h, v15.8h, v14.8h, v15.8h, v12.8h, v13.8h, \sz bif v2\sz, v17\sz, v7\sz rshrn_sz v3, v0.8h, v1.8h, #4, \sz add_sz v0.8h, v1.8h, v0.8h, v1.8h, v14.8h, v15.8h, \sz uaddl_sz v12.8h, v13.8h, v16, v20, \sz uaddl_sz v14.8h, v15.8h, v21, v28, \sz sub_sz v10.8h, v11.8h, v10.8h, v11.8h, v8.8h, v9.8h, \sz bif v3\sz, v18\sz, v7\sz rshrn_sz v4, v0.8h, v1.8h, #4, \sz add_sz v0.8h, v1.8h, v0.8h, v1.8h, v10.8h, v11.8h, \sz uaddl_sz v8.8h, v9.8h, v16, v21, \sz uaddl_sz v10.8h, v11.8h, v22, v29, \sz sub_sz v14.8h, v15.8h, v14.8h, v15.8h, v12.8h, v13.8h, \sz bif v4\sz, v19\sz, v7\sz rshrn_sz v5, v0.8h, v1.8h, #4, \sz add_sz v0.8h, v1.8h, v0.8h, v1.8h, v14.8h, v15.8h, \sz uaddl_sz v12.8h, v13.8h, v16, v22, \sz uaddl_sz v14.8h, v15.8h, v23, v30, \sz sub_sz v10.8h, v11.8h, v10.8h, v11.8h, v8.8h, v9.8h, \sz bif v5\sz, v20\sz, v7\sz rshrn_sz v6, v0.8h, v1.8h, #4, \sz add_sz v0.8h, v1.8h, v0.8h, v1.8h, v10.8h, v11.8h, \sz uaddl_sz v10.8h, v11.8h, v16, v23, \sz sub_sz v14.8h, v15.8h, v14.8h, v15.8h, v12.8h, v13.8h, \sz uaddl_sz v12.8h, v13.8h, v24, v31, \sz bif v6\sz, v21\sz, v7\sz rshrn_sz v8, v0.8h, v1.8h, #4, \sz add_sz v0.8h, v1.8h, v0.8h, v1.8h, v14.8h, v15.8h, \sz sub_sz v10.8h, v11.8h, v12.8h, v13.8h, v10.8h, v11.8h, \sz uaddl_sz v12.8h, v13.8h, v17, v24, \sz uaddl_sz v14.8h, v15.8h, v25, v31, \sz bif v8\sz, v22\sz, v7\sz rshrn_sz v9, v0.8h, v1.8h, #4, \sz add_sz v0.8h, v1.8h, v0.8h, v1.8h, v10.8h, v11.8h, \sz sub_sz v14.8h, v15.8h, v14.8h, v15.8h, v12.8h, v13.8h, \sz uaddl_sz v12.8h, v13.8h, v26, v31, \sz bif v9\sz, v23\sz, v7\sz rshrn_sz v10, v0.8h, v1.8h, #4, \sz add_sz v0.8h, v1.8h, v0.8h, v1.8h, v14.8h, v15.8h, \sz uaddl_sz v14.8h, v15.8h, v18, v25, \sz uaddl_sz v18.8h, v19.8h, v19, v26, \sz sub_sz v12.8h, v13.8h, v12.8h, v13.8h, v14.8h, v15.8h, \sz uaddl_sz v14.8h, v15.8h, v27, v31, \sz bif v10\sz, v24\sz, v7\sz rshrn_sz v11, v0.8h, v1.8h, #4, \sz add_sz v0.8h, v1.8h, v0.8h, v1.8h, v12.8h, v13.8h, \sz uaddl_sz v12.8h, v13.8h, v20, v27, \sz sub_sz v14.8h, v15.8h, v14.8h, v15.8h, v18.8h, v19.8h, \sz uaddl_sz v18.8h, v19.8h, v28, v31, \sz bif v11\sz, v25\sz, v7\sz sub_sz v18.8h, v19.8h, v18.8h, v19.8h, v12.8h, v13.8h, \sz rshrn_sz v12, v0.8h, v1.8h, #4, \sz add_sz v0.8h, v1.8h, v0.8h, v1.8h, v14.8h, v15.8h, \sz uaddl_sz v14.8h, v15.8h, v21, v28, \sz uaddl_sz v20.8h, v21.8h, v29, v31, \sz bif v12\sz, v26\sz, v7\sz rshrn_sz v13, v0.8h, v1.8h, #4, \sz add_sz v0.8h, v1.8h, v0.8h, v1.8h, v18.8h, v19.8h, \sz sub_sz v20.8h, v21.8h, v20.8h, v21.8h, v14.8h, v15.8h, \sz uaddl_sz v18.8h, v19.8h, v22, v29, \sz uaddl_sz v22.8h, v23.8h, v30, v31, \sz bif v13\sz, v27\sz, v7\sz rshrn_sz v14, v0.8h, v1.8h, #4, \sz add_sz v0.8h, v1.8h, v0.8h, v1.8h, v20.8h, v21.8h, \sz sub_sz v22.8h, v23.8h, v22.8h, v23.8h, v18.8h, v19.8h, \sz bif v14\sz, v28\sz, v7\sz rshrn_sz v15, v0.8h, v1.8h, #4, \sz add_sz v0.8h, v1.8h, v0.8h, v1.8h, v22.8h, v23.8h, \sz bif v15\sz, v29\sz, v7\sz rshrn_sz v17, v0.8h, v1.8h, #4, \sz bif v17\sz, v30\sz, v7\sz .endif .endm // For wd <= 8, we use v16-v19 and v28-v31 for temp registers, // while we need those for inputs/outputs in wd=16 and use v8-v15 // for temp registers there instead. function vp9_loop_filter_4 loop_filter 4, .8b, 0, v16, v17, v18, v19, v28, v29, v30, v31 ret 9: br x10 endfunc function vp9_loop_filter_4_16b_mix_44 loop_filter 4, .16b, 44, v16, v17, v18, v19, v28, v29, v30, v31 ret 9: br x10 endfunc function vp9_loop_filter_8 loop_filter 8, .8b, 0, v16, v17, v18, v19, v28, v29, v30, v31 ret 6: br x13 9: br x10 endfunc function vp9_loop_filter_8_16b_mix loop_filter 8, .16b, 88, v16, v17, v18, v19, v28, v29, v30, v31 ret 6: br x13 9: br x10 endfunc function vp9_loop_filter_16 loop_filter 16, .8b, 0, v8, v9, v10, v11, v12, v13, v14, v15 ret 9: ldp d8, d9, [sp], 0x10 ldp d10, d11, [sp], 0x10 ldp d12, d13, [sp], 0x10 ldp d14, d15, [sp], 0x10 br x10 endfunc function vp9_loop_filter_16_16b loop_filter 16, .16b, 0, v8, v9, v10, v11, v12, v13, v14, v15 ret 9: ldp d8, d9, [sp], 0x10 ldp d10, d11, [sp], 0x10 ldp d12, d13, [sp], 0x10 ldp d14, d15, [sp], 0x10 br x10 endfunc .macro loop_filter_4 bl vp9_loop_filter_4 .endm .macro loop_filter_4_16b_mix mix bl vp9_loop_filter_4_16b_mix_\mix .endm .macro loop_filter_8 // calculate alternative 'return' targets adr x13, 6f bl vp9_loop_filter_8 .endm .macro loop_filter_8_16b_mix mix // calculate alternative 'return' targets adr x13, 6f .if \mix == 48 mov x11, #0xffffffff00000000 .elseif \mix == 84 mov x11, #0x00000000ffffffff .else mov x11, #0xffffffffffffffff .endif bl vp9_loop_filter_8_16b_mix .endm .macro loop_filter_16 // calculate alternative 'return' targets adr x14, 7f adr x15, 8f bl vp9_loop_filter_16 .endm .macro loop_filter_16_16b // calculate alternative 'return' targets adr x14, 7f adr x15, 8f bl vp9_loop_filter_16_16b .endm // The public functions in this file have got the following signature: // void loop_filter(uint8_t *dst, ptrdiff_t stride, int mb_lim, int lim, int hev_thr); function ff_vp9_loop_filter_v_4_8_neon, export=1 mov x10, x30 sub x9, x0, x1, lsl #2 ld1 {v20.8b}, [x9], x1 // p3 ld1 {v24.8b}, [x0], x1 // q0 ld1 {v21.8b}, [x9], x1 // p2 ld1 {v25.8b}, [x0], x1 // q1 ld1 {v22.8b}, [x9], x1 // p1 ld1 {v26.8b}, [x0], x1 // q2 ld1 {v23.8b}, [x9], x1 // p0 ld1 {v27.8b}, [x0], x1 // q3 sub x0, x0, x1, lsl #2 sub x9, x9, x1, lsl #1 loop_filter_4 st1 {v22.8b}, [x9], x1 st1 {v24.8b}, [x0], x1 st1 {v23.8b}, [x9], x1 st1 {v25.8b}, [x0], x1 br x10 endfunc function ff_vp9_loop_filter_v_44_16_neon, export=1 mov x10, x30 sub x9, x0, x1, lsl #2 ld1 {v20.16b}, [x9], x1 // p3 ld1 {v24.16b}, [x0], x1 // q0 ld1 {v21.16b}, [x9], x1 // p2 ld1 {v25.16b}, [x0], x1 // q1 ld1 {v22.16b}, [x9], x1 // p1 ld1 {v26.16b}, [x0], x1 // q2 ld1 {v23.16b}, [x9], x1 // p0 ld1 {v27.16b}, [x0], x1 // q3 sub x0, x0, x1, lsl #2 sub x9, x9, x1, lsl #1 loop_filter_4_16b_mix 44 st1 {v22.16b}, [x9], x1 st1 {v24.16b}, [x0], x1 st1 {v23.16b}, [x9], x1 st1 {v25.16b}, [x0], x1 br x10 endfunc function ff_vp9_loop_filter_h_4_8_neon, export=1 mov x10, x30 sub x9, x0, #4 add x0, x9, x1, lsl #2 ld1 {v20.8b}, [x9], x1 ld1 {v24.8b}, [x0], x1 ld1 {v21.8b}, [x9], x1 ld1 {v25.8b}, [x0], x1 ld1 {v22.8b}, [x9], x1 ld1 {v26.8b}, [x0], x1 ld1 {v23.8b}, [x9], x1 ld1 {v27.8b}, [x0], x1 sub x9, x9, x1, lsl #2 sub x0, x0, x1, lsl #2 // Move x0/x9 forward by 2 pixels; we don't need to rewrite the // outermost 2 pixels since they aren't changed. add x9, x9, #2 add x0, x0, #2 transpose_8x8B v20, v21, v22, v23, v24, v25, v26, v27, v28, v29 loop_filter_4 // We only will write the mid 4 pixels back; after the loop filter, // these are in v22, v23, v24, v25, ordered as rows (8x4 pixels). // We need to transpose them to columns, done with a 4x8 transpose // (which in practice is two 4x4 transposes of the two 4x4 halves // of the 8x4 pixels; into 4x8 pixels). transpose_4x8B v22, v23, v24, v25, v26, v27, v28, v29 st1 {v22.s}[0], [x9], x1 st1 {v22.s}[1], [x0], x1 st1 {v23.s}[0], [x9], x1 st1 {v23.s}[1], [x0], x1 st1 {v24.s}[0], [x9], x1 st1 {v24.s}[1], [x0], x1 st1 {v25.s}[0], [x9], x1 st1 {v25.s}[1], [x0], x1 br x10 endfunc function ff_vp9_loop_filter_h_44_16_neon, export=1 mov x10, x30 sub x9, x0, #4 add x0, x9, x1, lsl #3 ld1 {v20.8b}, [x9], x1 ld1 {v20.d}[1], [x0], x1 ld1 {v21.8b}, [x9], x1 ld1 {v21.d}[1], [x0], x1 ld1 {v22.8b}, [x9], x1 ld1 {v22.d}[1], [x0], x1 ld1 {v23.8b}, [x9], x1 ld1 {v23.d}[1], [x0], x1 ld1 {v24.8b}, [x9], x1 ld1 {v24.d}[1], [x0], x1 ld1 {v25.8b}, [x9], x1 ld1 {v25.d}[1], [x0], x1 ld1 {v26.8b}, [x9], x1 ld1 {v26.d}[1], [x0], x1 ld1 {v27.8b}, [x9], x1 ld1 {v27.d}[1], [x0], x1 sub x9, x9, x1, lsl #3 sub x0, x0, x1, lsl #3 add x9, x9, #2 add x0, x0, #2 transpose_8x16B v20, v21, v22, v23, v24, v25, v26, v27, v28, v29 loop_filter_4_16b_mix 44 transpose_4x16B v22, v23, v24, v25, v26, v27, v28, v29 st1 {v22.s}[0], [x9], x1 st1 {v22.s}[2], [x0], x1 st1 {v23.s}[0], [x9], x1 st1 {v23.s}[2], [x0], x1 st1 {v24.s}[0], [x9], x1 st1 {v24.s}[2], [x0], x1 st1 {v25.s}[0], [x9], x1 st1 {v25.s}[2], [x0], x1 st1 {v22.s}[1], [x9], x1 st1 {v22.s}[3], [x0], x1 st1 {v23.s}[1], [x9], x1 st1 {v23.s}[3], [x0], x1 st1 {v24.s}[1], [x9], x1 st1 {v24.s}[3], [x0], x1 st1 {v25.s}[1], [x9], x1 st1 {v25.s}[3], [x0], x1 br x10 endfunc function ff_vp9_loop_filter_v_8_8_neon, export=1 mov x10, x30 sub x9, x0, x1, lsl #2 ld1 {v20.8b}, [x9], x1 // p3 ld1 {v24.8b}, [x0], x1 // q0 ld1 {v21.8b}, [x9], x1 // p2 ld1 {v25.8b}, [x0], x1 // q1 ld1 {v22.8b}, [x9], x1 // p1 ld1 {v26.8b}, [x0], x1 // q2 ld1 {v23.8b}, [x9], x1 // p0 ld1 {v27.8b}, [x0], x1 // q3 sub x9, x9, x1, lsl #2 sub x0, x0, x1, lsl #2 add x9, x9, x1 loop_filter_8 st1 {v21.8b}, [x9], x1 st1 {v24.8b}, [x0], x1 st1 {v22.8b}, [x9], x1 st1 {v25.8b}, [x0], x1 st1 {v23.8b}, [x9], x1 st1 {v26.8b}, [x0], x1 br x10 6: sub x9, x0, x1, lsl #1 st1 {v22.8b}, [x9], x1 st1 {v24.8b}, [x0], x1 st1 {v23.8b}, [x9], x1 st1 {v25.8b}, [x0], x1 br x10 endfunc .macro mix_v_16 mix function ff_vp9_loop_filter_v_\mix\()_16_neon, export=1 mov x10, x30 sub x9, x0, x1, lsl #2 ld1 {v20.16b}, [x9], x1 // p3 ld1 {v24.16b}, [x0], x1 // q0 ld1 {v21.16b}, [x9], x1 // p2 ld1 {v25.16b}, [x0], x1 // q1 ld1 {v22.16b}, [x9], x1 // p1 ld1 {v26.16b}, [x0], x1 // q2 ld1 {v23.16b}, [x9], x1 // p0 ld1 {v27.16b}, [x0], x1 // q3 sub x9, x9, x1, lsl #2 sub x0, x0, x1, lsl #2 add x9, x9, x1 loop_filter_8_16b_mix \mix st1 {v21.16b}, [x9], x1 st1 {v24.16b}, [x0], x1 st1 {v22.16b}, [x9], x1 st1 {v25.16b}, [x0], x1 st1 {v23.16b}, [x9], x1 st1 {v26.16b}, [x0], x1 br x10 6: sub x9, x0, x1, lsl #1 st1 {v22.16b}, [x9], x1 st1 {v24.16b}, [x0], x1 st1 {v23.16b}, [x9], x1 st1 {v25.16b}, [x0], x1 br x10 endfunc .endm mix_v_16 48 mix_v_16 84 mix_v_16 88 function ff_vp9_loop_filter_h_8_8_neon, export=1 mov x10, x30 sub x9, x0, #4 add x0, x9, x1, lsl #2 ld1 {v20.8b}, [x9], x1 ld1 {v24.8b}, [x0], x1 ld1 {v21.8b}, [x9], x1 ld1 {v25.8b}, [x0], x1 ld1 {v22.8b}, [x9], x1 ld1 {v26.8b}, [x0], x1 ld1 {v23.8b}, [x9], x1 ld1 {v27.8b}, [x0], x1 sub x9, x9, x1, lsl #2 sub x0, x0, x1, lsl #2 transpose_8x8B v20, v21, v22, v23, v24, v25, v26, v27, v28, v29 loop_filter_8 // Even though only 6 pixels per row have been changed, we write the // full 8 pixel registers. transpose_8x8B v20, v21, v22, v23, v24, v25, v26, v27, v28, v29 st1 {v20.8b}, [x9], x1 st1 {v24.8b}, [x0], x1 st1 {v21.8b}, [x9], x1 st1 {v25.8b}, [x0], x1 st1 {v22.8b}, [x9], x1 st1 {v26.8b}, [x0], x1 st1 {v23.8b}, [x9], x1 st1 {v27.8b}, [x0], x1 br x10 6: // If we didn't need to do the flat8in part, we use the same writeback // as in loop_filter_h_4_8. add x9, x9, #2 add x0, x0, #2 transpose_4x8B v22, v23, v24, v25, v26, v27, v28, v29 st1 {v22.s}[0], [x9], x1 st1 {v22.s}[1], [x0], x1 st1 {v23.s}[0], [x9], x1 st1 {v23.s}[1], [x0], x1 st1 {v24.s}[0], [x9], x1 st1 {v24.s}[1], [x0], x1 st1 {v25.s}[0], [x9], x1 st1 {v25.s}[1], [x0], x1 br x10 endfunc .macro mix_h_16 mix function ff_vp9_loop_filter_h_\mix\()_16_neon, export=1 mov x10, x30 sub x9, x0, #4 add x0, x9, x1, lsl #3 ld1 {v20.8b}, [x9], x1 ld1 {v20.d}[1], [x0], x1 ld1 {v21.8b}, [x9], x1 ld1 {v21.d}[1], [x0], x1 ld1 {v22.8b}, [x9], x1 ld1 {v22.d}[1], [x0], x1 ld1 {v23.8b}, [x9], x1 ld1 {v23.d}[1], [x0], x1 ld1 {v24.8b}, [x9], x1 ld1 {v24.d}[1], [x0], x1 ld1 {v25.8b}, [x9], x1 ld1 {v25.d}[1], [x0], x1 ld1 {v26.8b}, [x9], x1 ld1 {v26.d}[1], [x0], x1 ld1 {v27.8b}, [x9], x1 ld1 {v27.d}[1], [x0], x1 sub x9, x9, x1, lsl #3 sub x0, x0, x1, lsl #3 transpose_8x16B v20, v21, v22, v23, v24, v25, v26, v27, v28, v29 loop_filter_8_16b_mix \mix transpose_8x16B v20, v21, v22, v23, v24, v25, v26, v27, v28, v29 st1 {v20.8b}, [x9], x1 st1 {v20.d}[1], [x0], x1 st1 {v21.8b}, [x9], x1 st1 {v21.d}[1], [x0], x1 st1 {v22.8b}, [x9], x1 st1 {v22.d}[1], [x0], x1 st1 {v23.8b}, [x9], x1 st1 {v23.d}[1], [x0], x1 st1 {v24.8b}, [x9], x1 st1 {v24.d}[1], [x0], x1 st1 {v25.8b}, [x9], x1 st1 {v25.d}[1], [x0], x1 st1 {v26.8b}, [x9], x1 st1 {v26.d}[1], [x0], x1 st1 {v27.8b}, [x9], x1 st1 {v27.d}[1], [x0], x1 br x10 6: add x9, x9, #2 add x0, x0, #2 transpose_4x16B v22, v23, v24, v25, v26, v27, v28, v29 st1 {v22.s}[0], [x9], x1 st1 {v22.s}[2], [x0], x1 st1 {v23.s}[0], [x9], x1 st1 {v23.s}[2], [x0], x1 st1 {v24.s}[0], [x9], x1 st1 {v24.s}[2], [x0], x1 st1 {v25.s}[0], [x9], x1 st1 {v25.s}[2], [x0], x1 st1 {v22.s}[1], [x9], x1 st1 {v22.s}[3], [x0], x1 st1 {v23.s}[1], [x9], x1 st1 {v23.s}[3], [x0], x1 st1 {v24.s}[1], [x9], x1 st1 {v24.s}[3], [x0], x1 st1 {v25.s}[1], [x9], x1 st1 {v25.s}[3], [x0], x1 br x10 endfunc .endm mix_h_16 48 mix_h_16 84 mix_h_16 88 function ff_vp9_loop_filter_v_16_8_neon, export=1 mov x10, x30 stp d14, d15, [sp, #-0x10]! stp d12, d13, [sp, #-0x10]! stp d10, d11, [sp, #-0x10]! stp d8, d9, [sp, #-0x10]! sub x9, x0, x1, lsl #3 ld1 {v16.8b}, [x9], x1 // p7 ld1 {v24.8b}, [x0], x1 // q0 ld1 {v17.8b}, [x9], x1 // p6 ld1 {v25.8b}, [x0], x1 // q1 ld1 {v18.8b}, [x9], x1 // p5 ld1 {v26.8b}, [x0], x1 // q2 ld1 {v19.8b}, [x9], x1 // p4 ld1 {v27.8b}, [x0], x1 // q3 ld1 {v20.8b}, [x9], x1 // p3 ld1 {v28.8b}, [x0], x1 // q4 ld1 {v21.8b}, [x9], x1 // p2 ld1 {v29.8b}, [x0], x1 // q5 ld1 {v22.8b}, [x9], x1 // p1 ld1 {v30.8b}, [x0], x1 // q6 ld1 {v23.8b}, [x9], x1 // p0 ld1 {v31.8b}, [x0], x1 // q7 sub x9, x9, x1, lsl #3 sub x0, x0, x1, lsl #3 add x9, x9, x1 loop_filter_16 // If we did the flat8out part, we get the output in // v2-v17 (skipping v7 and v16). x9 points to x0 - 7 * stride, // store v2-v9 there, and v10-v17 into x0. st1 {v2.8b}, [x9], x1 st1 {v10.8b}, [x0], x1 st1 {v3.8b}, [x9], x1 st1 {v11.8b}, [x0], x1 st1 {v4.8b}, [x9], x1 st1 {v12.8b}, [x0], x1 st1 {v5.8b}, [x9], x1 st1 {v13.8b}, [x0], x1 st1 {v6.8b}, [x9], x1 st1 {v14.8b}, [x0], x1 st1 {v8.8b}, [x9], x1 st1 {v15.8b}, [x0], x1 st1 {v9.8b}, [x9], x1 st1 {v17.8b}, [x0], x1 9: ldp d8, d9, [sp], 0x10 ldp d10, d11, [sp], 0x10 ldp d12, d13, [sp], 0x10 ldp d14, d15, [sp], 0x10 br x10 8: add x9, x9, x1, lsl #2 // If we didn't do the flat8out part, the output is left in the // input registers. st1 {v21.8b}, [x9], x1 st1 {v24.8b}, [x0], x1 st1 {v22.8b}, [x9], x1 st1 {v25.8b}, [x0], x1 st1 {v23.8b}, [x9], x1 st1 {v26.8b}, [x0], x1 b 9b 7: sub x9, x0, x1, lsl #1 st1 {v22.8b}, [x9], x1 st1 {v24.8b}, [x0], x1 st1 {v23.8b}, [x9], x1 st1 {v25.8b}, [x0], x1 b 9b endfunc function ff_vp9_loop_filter_v_16_16_neon, export=1 mov x10, x30 stp d14, d15, [sp, #-0x10]! stp d12, d13, [sp, #-0x10]! stp d10, d11, [sp, #-0x10]! stp d8, d9, [sp, #-0x10]! sub x9, x0, x1, lsl #3 ld1 {v16.16b}, [x9], x1 // p7 ld1 {v24.16b}, [x0], x1 // q0 ld1 {v17.16b}, [x9], x1 // p6 ld1 {v25.16b}, [x0], x1 // q1 ld1 {v18.16b}, [x9], x1 // p5 ld1 {v26.16b}, [x0], x1 // q2 ld1 {v19.16b}, [x9], x1 // p4 ld1 {v27.16b}, [x0], x1 // q3 ld1 {v20.16b}, [x9], x1 // p3 ld1 {v28.16b}, [x0], x1 // q4 ld1 {v21.16b}, [x9], x1 // p2 ld1 {v29.16b}, [x0], x1 // q5 ld1 {v22.16b}, [x9], x1 // p1 ld1 {v30.16b}, [x0], x1 // q6 ld1 {v23.16b}, [x9], x1 // p0 ld1 {v31.16b}, [x0], x1 // q7 sub x9, x9, x1, lsl #3 sub x0, x0, x1, lsl #3 add x9, x9, x1 loop_filter_16_16b st1 {v2.16b}, [x9], x1 st1 {v10.16b}, [x0], x1 st1 {v3.16b}, [x9], x1 st1 {v11.16b}, [x0], x1 st1 {v4.16b}, [x9], x1 st1 {v12.16b}, [x0], x1 st1 {v5.16b}, [x9], x1 st1 {v13.16b}, [x0], x1 st1 {v6.16b}, [x9], x1 st1 {v14.16b}, [x0], x1 st1 {v8.16b}, [x9], x1 st1 {v15.16b}, [x0], x1 st1 {v9.16b}, [x9], x1 st1 {v17.16b}, [x0], x1 9: ldp d8, d9, [sp], 0x10 ldp d10, d11, [sp], 0x10 ldp d12, d13, [sp], 0x10 ldp d14, d15, [sp], 0x10 br x10 8: add x9, x9, x1, lsl #2 st1 {v21.16b}, [x9], x1 st1 {v24.16b}, [x0], x1 st1 {v22.16b}, [x9], x1 st1 {v25.16b}, [x0], x1 st1 {v23.16b}, [x9], x1 st1 {v26.16b}, [x0], x1 b 9b 7: sub x9, x0, x1, lsl #1 st1 {v22.16b}, [x9], x1 st1 {v24.16b}, [x0], x1 st1 {v23.16b}, [x9], x1 st1 {v25.16b}, [x0], x1 b 9b endfunc function ff_vp9_loop_filter_h_16_8_neon, export=1 mov x10, x30 stp d14, d15, [sp, #-0x10]! stp d12, d13, [sp, #-0x10]! stp d10, d11, [sp, #-0x10]! stp d8, d9, [sp, #-0x10]! sub x9, x0, #8 ld1 {v16.8b}, [x9], x1 ld1 {v24.8b}, [x0], x1 ld1 {v17.8b}, [x9], x1 ld1 {v25.8b}, [x0], x1 ld1 {v18.8b}, [x9], x1 ld1 {v26.8b}, [x0], x1 ld1 {v19.8b}, [x9], x1 ld1 {v27.8b}, [x0], x1 ld1 {v20.8b}, [x9], x1 ld1 {v28.8b}, [x0], x1 ld1 {v21.8b}, [x9], x1 ld1 {v29.8b}, [x0], x1 ld1 {v22.8b}, [x9], x1 ld1 {v30.8b}, [x0], x1 ld1 {v23.8b}, [x9], x1 ld1 {v31.8b}, [x0], x1 sub x0, x0, x1, lsl #3 sub x9, x9, x1, lsl #3 // The 16x8 pixels read above is in two 8x8 blocks; the left // half in v16-v23, and the right half in v24-v31. Do two 8x8 transposes // of this, to get one column per register. transpose_8x8B v16, v17, v18, v19, v20, v21, v22, v23, v0, v1 transpose_8x8B v24, v25, v26, v27, v28, v29, v30, v31, v0, v1 loop_filter_16 transpose_8x8B v16, v2, v3, v4, v5, v6, v8, v9, v0, v1 transpose_8x8B v10, v11, v12, v13, v14, v15, v17, v31, v0, v1 st1 {v16.8b}, [x9], x1 st1 {v10.8b}, [x0], x1 st1 {v2.8b}, [x9], x1 st1 {v11.8b}, [x0], x1 st1 {v3.8b}, [x9], x1 st1 {v12.8b}, [x0], x1 st1 {v4.8b}, [x9], x1 st1 {v13.8b}, [x0], x1 st1 {v5.8b}, [x9], x1 st1 {v14.8b}, [x0], x1 st1 {v6.8b}, [x9], x1 st1 {v15.8b}, [x0], x1 st1 {v8.8b}, [x9], x1 st1 {v17.8b}, [x0], x1 st1 {v9.8b}, [x9], x1 st1 {v31.8b}, [x0], x1 9: ldp d8, d9, [sp], 0x10 ldp d10, d11, [sp], 0x10 ldp d12, d13, [sp], 0x10 ldp d14, d15, [sp], 0x10 br x10 8: // The same writeback as in loop_filter_h_8_8 sub x9, x0, #4 add x0, x9, x1, lsl #2 transpose_8x8B v20, v21, v22, v23, v24, v25, v26, v27, v28, v29 st1 {v20.8b}, [x9], x1 st1 {v24.8b}, [x0], x1 st1 {v21.8b}, [x9], x1 st1 {v25.8b}, [x0], x1 st1 {v22.8b}, [x9], x1 st1 {v26.8b}, [x0], x1 st1 {v23.8b}, [x9], x1 st1 {v27.8b}, [x0], x1 b 9b 7: // The same writeback as in loop_filter_h_4_8 sub x9, x0, #2 add x0, x9, x1, lsl #2 transpose_4x8B v22, v23, v24, v25, v26, v27, v28, v29 st1 {v22.s}[0], [x9], x1 st1 {v22.s}[1], [x0], x1 st1 {v23.s}[0], [x9], x1 st1 {v23.s}[1], [x0], x1 st1 {v24.s}[0], [x9], x1 st1 {v24.s}[1], [x0], x1 st1 {v25.s}[0], [x9], x1 st1 {v25.s}[1], [x0], x1 b 9b endfunc function ff_vp9_loop_filter_h_16_16_neon, export=1 mov x10, x30 stp d14, d15, [sp, #-0x10]! stp d12, d13, [sp, #-0x10]! stp d10, d11, [sp, #-0x10]! stp d8, d9, [sp, #-0x10]! sub x9, x0, #8 ld1 {v16.8b}, [x9], x1 ld1 {v24.8b}, [x0], x1 ld1 {v17.8b}, [x9], x1 ld1 {v25.8b}, [x0], x1 ld1 {v18.8b}, [x9], x1 ld1 {v26.8b}, [x0], x1 ld1 {v19.8b}, [x9], x1 ld1 {v27.8b}, [x0], x1 ld1 {v20.8b}, [x9], x1 ld1 {v28.8b}, [x0], x1 ld1 {v21.8b}, [x9], x1 ld1 {v29.8b}, [x0], x1 ld1 {v22.8b}, [x9], x1 ld1 {v30.8b}, [x0], x1 ld1 {v23.8b}, [x9], x1 ld1 {v31.8b}, [x0], x1 ld1 {v16.d}[1], [x9], x1 ld1 {v24.d}[1], [x0], x1 ld1 {v17.d}[1], [x9], x1 ld1 {v25.d}[1], [x0], x1 ld1 {v18.d}[1], [x9], x1 ld1 {v26.d}[1], [x0], x1 ld1 {v19.d}[1], [x9], x1 ld1 {v27.d}[1], [x0], x1 ld1 {v20.d}[1], [x9], x1 ld1 {v28.d}[1], [x0], x1 ld1 {v21.d}[1], [x9], x1 ld1 {v29.d}[1], [x0], x1 ld1 {v22.d}[1], [x9], x1 ld1 {v30.d}[1], [x0], x1 ld1 {v23.d}[1], [x9], x1 ld1 {v31.d}[1], [x0], x1 sub x0, x0, x1, lsl #4 sub x9, x9, x1, lsl #4 transpose_8x16B v16, v17, v18, v19, v20, v21, v22, v23, v0, v1 transpose_8x16B v24, v25, v26, v27, v28, v29, v30, v31, v0, v1 loop_filter_16_16b transpose_8x16B v16, v2, v3, v4, v5, v6, v8, v9, v0, v1 transpose_8x16B v10, v11, v12, v13, v14, v15, v17, v31, v0, v1 st1 {v16.8b}, [x9], x1 st1 {v10.8b}, [x0], x1 st1 {v2.8b}, [x9], x1 st1 {v11.8b}, [x0], x1 st1 {v3.8b}, [x9], x1 st1 {v12.8b}, [x0], x1 st1 {v4.8b}, [x9], x1 st1 {v13.8b}, [x0], x1 st1 {v5.8b}, [x9], x1 st1 {v14.8b}, [x0], x1 st1 {v6.8b}, [x9], x1 st1 {v15.8b}, [x0], x1 st1 {v8.8b}, [x9], x1 st1 {v17.8b}, [x0], x1 st1 {v9.8b}, [x9], x1 st1 {v31.8b}, [x0], x1 st1 {v16.d}[1], [x9], x1 st1 {v10.d}[1], [x0], x1 st1 {v2.d}[1], [x9], x1 st1 {v11.d}[1], [x0], x1 st1 {v3.d}[1], [x9], x1 st1 {v12.d}[1], [x0], x1 st1 {v4.d}[1], [x9], x1 st1 {v13.d}[1], [x0], x1 st1 {v5.d}[1], [x9], x1 st1 {v14.d}[1], [x0], x1 st1 {v6.d}[1], [x9], x1 st1 {v15.d}[1], [x0], x1 st1 {v8.d}[1], [x9], x1 st1 {v17.d}[1], [x0], x1 st1 {v9.d}[1], [x9], x1 st1 {v31.d}[1], [x0], x1 9: ldp d8, d9, [sp], 0x10 ldp d10, d11, [sp], 0x10 ldp d12, d13, [sp], 0x10 ldp d14, d15, [sp], 0x10 br x10 8: sub x9, x0, #4 add x0, x9, x1, lsl #3 transpose_8x16B v20, v21, v22, v23, v24, v25, v26, v27, v28, v29 st1 {v20.8b}, [x9], x1 st1 {v20.d}[1], [x0], x1 st1 {v21.8b}, [x9], x1 st1 {v21.d}[1], [x0], x1 st1 {v22.8b}, [x9], x1 st1 {v22.d}[1], [x0], x1 st1 {v23.8b}, [x9], x1 st1 {v23.d}[1], [x0], x1 st1 {v24.8b}, [x9], x1 st1 {v24.d}[1], [x0], x1 st1 {v25.8b}, [x9], x1 st1 {v25.d}[1], [x0], x1 st1 {v26.8b}, [x9], x1 st1 {v26.d}[1], [x0], x1 st1 {v27.8b}, [x9], x1 st1 {v27.d}[1], [x0], x1 b 9b 7: sub x9, x0, #2 add x0, x9, x1, lsl #3 transpose_4x16B v22, v23, v24, v25, v26, v27, v28, v29 st1 {v22.s}[0], [x9], x1 st1 {v22.s}[2], [x0], x1 st1 {v23.s}[0], [x9], x1 st1 {v23.s}[2], [x0], x1 st1 {v24.s}[0], [x9], x1 st1 {v24.s}[2], [x0], x1 st1 {v25.s}[0], [x9], x1 st1 {v25.s}[2], [x0], x1 st1 {v22.s}[1], [x9], x1 st1 {v22.s}[3], [x0], x1 st1 {v23.s}[1], [x9], x1 st1 {v23.s}[3], [x0], x1 st1 {v24.s}[1], [x9], x1 st1 {v24.s}[3], [x0], x1 st1 {v25.s}[1], [x9], x1 st1 {v25.s}[3], [x0], x1 b 9b endfunc