diff options
Diffstat (limited to 'media/ffvpx/libavcodec/aarch64/vp9lpf_16bpp_neon.S')
-rw-r--r-- | media/ffvpx/libavcodec/aarch64/vp9lpf_16bpp_neon.S | 873 |
1 files changed, 873 insertions, 0 deletions
diff --git a/media/ffvpx/libavcodec/aarch64/vp9lpf_16bpp_neon.S b/media/ffvpx/libavcodec/aarch64/vp9lpf_16bpp_neon.S new file mode 100644 index 0000000000..9075f3d406 --- /dev/null +++ b/media/ffvpx/libavcodec/aarch64/vp9lpf_16bpp_neon.S @@ -0,0 +1,873 @@ +/* + * Copyright (c) 2017 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" + + +.macro transpose_4x8H r0, r1, r2, r3, t4, t5, t6, t7 + trn1 \t4\().8h, \r0\().8h, \r1\().8h + trn2 \t5\().8h, \r0\().8h, \r1\().8h + trn1 \t6\().8h, \r2\().8h, \r3\().8h + trn2 \t7\().8h, \r2\().8h, \r3\().8h + + trn1 \r0\().4s, \t4\().4s, \t6\().4s + trn2 \r2\().4s, \t4\().4s, \t6\().4s + trn1 \r1\().4s, \t5\().4s, \t7\().4s + trn2 \r3\().4s, \t5\().4s, \t7\().4s +.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. +.macro loop_filter wd, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7, tmp8 + dup v0.8h, w2 // E + dup v2.8h, w3 // I + dup v3.8h, w4 // H + + uabd v4.8h, v20.8h, v21.8h // abs(p3 - p2) + uabd v5.8h, v21.8h, v22.8h // abs(p2 - p1) + uabd v6.8h, v22.8h, v23.8h // abs(p1 - p0) + uabd v7.8h, v24.8h, v25.8h // abs(q0 - q1) + uabd \tmp1\().8h, v25.8h, v26.8h // abs(q1 - q2) + uabd \tmp2\().8h, v26.8h, v27.8h // abs(q2 - q3) + umax v4.8h, v4.8h, v5.8h + umax v5.8h, v6.8h, v7.8h + umax \tmp1\().8h, \tmp1\().8h, \tmp2\().8h + uabd v6.8h, v23.8h, v24.8h // abs(p0 - q0) + umax v4.8h, v4.8h, v5.8h + add v6.8h, v6.8h, v6.8h // abs(p0 - q0) * 2 + uabd v5.8h, v22.8h, v25.8h // abs(p1 - q1) + umax v4.8h, v4.8h, \tmp1\().8h // max(abs(p3 - p2), ..., abs(q2 - q3)) + ushr v5.8h, v5.8h, #1 + cmhs v4.8h, v2.8h, v4.8h // max(abs()) <= I + add v6.8h, v6.8h, v5.8h // abs(p0 - q0) * 2 + abs(p1 - q1) >> 1 + cmhs v6.8h, v0.8h, v6.8h + and v4.16b, v4.16b, v6.16b // fm + + // If no pixels need filtering, just exit as soon as possible + mov x11, v4.d[0] + mov x12, v4.d[1] + adds x11, x11, x12 + b.ne 1f + br x10 +1: + +.if \wd >= 8 + dup v0.8h, w5 + + uabd v6.8h, v20.8h, v23.8h // abs(p3 - p0) + uabd v2.8h, v21.8h, v23.8h // abs(p2 - p0) + uabd v1.8h, v22.8h, v23.8h // abs(p1 - p0) + uabd \tmp1\().8h, v25.8h, v24.8h // abs(q1 - q0) + uabd \tmp2\().8h, v26.8h, v24.8h // abs(q2 - q0) + uabd \tmp3\().8h, v27.8h, v24.8h // abs(q3 - q0) + umax v6.8h, v6.8h, v2.8h + umax v1.8h, v1.8h, \tmp1\().8h + umax \tmp2\().8h, \tmp2\().8h, \tmp3\().8h +.if \wd == 16 + uabd v7.8h, v16.8h, v23.8h // abs(p7 - p0) + umax v6.8h, v6.8h, v1.8h + uabd v2.8h, v17.8h, v23.8h // abs(p6 - p0) + umax v6.8h, v6.8h, \tmp2\().8h + uabd v1.8h, v18.8h, v23.8h // abs(p5 - p0) + cmhs v6.8h, v0.8h, v6.8h // flat8in + uabd v8.8h, v19.8h, v23.8h // abs(p4 - p0) + and v6.16b, v6.16b, v4.16b // flat8in && fm + uabd v9.8h, v28.8h, v24.8h // abs(q4 - q0) + bic v4.16b, v4.16b, v6.16b // fm && !flat8in + uabd v10.8h, v29.8h, v24.8h // abs(q5 - q0) + uabd v11.8h, v30.8h, v24.8h // abs(q6 - q0) + uabd v12.8h, v31.8h, v24.8h // abs(q7 - q0) + + umax v7.8h, v7.8h, v2.8h + umax v1.8h, v1.8h, v8.8h + umax v9.8h, v9.8h, v10.8h + umax v11.8h, v11.8h, v12.8h + // 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 v5.8h, v22.8h, v23.8h // abs(p1 - p0) +.if \wd == 16 + umax v7.8h, v7.8h, v1.8h + umax v9.8h, v9.8h, v11.8h +.elseif \wd == 8 + umax v6.8h, v6.8h, v1.8h +.endif + uabd v1.8h, v25.8h, v24.8h // abs(q1 - q0) +.if \wd == 16 + umax v7.8h, v7.8h, v9.8h +.elseif \wd == 8 + umax v6.8h, v6.8h, \tmp2\().8h +.endif + dup \tmp2\().8h, w6 // left shift for saturation + sub \tmp1\().8h, v22.8h, v25.8h // p1 - q1 + neg \tmp6\().8h, \tmp2\().8h // negative left shift after saturation + umax v5.8h, v5.8h, v1.8h // max(abs(p1 - p0), abs(q1 - q0)) + sub \tmp3\().8h, v24.8h, v23.8h // q0 - p0 + movi \tmp5\().8h, #3 +.if \wd == 8 + cmhs v6.8h, v0.8h, v6.8h // flat8in +.endif + cmhs v5.8h, v3.8h, v5.8h // !hev +.if \wd == 8 + and v6.16b, v6.16b, v4.16b // flat8in && fm +.endif + sqshl \tmp1\().8h, \tmp1\().8h, \tmp2\().8h +.if \wd == 16 + cmhs v7.8h, v0.8h, v7.8h // flat8out +.elseif \wd == 8 + bic v4.16b, v4.16b, v6.16b // fm && !flat8in +.endif + and v5.16b, v5.16b, v4.16b // !hev && fm && !flat8in +.if \wd == 16 + and v7.16b, v7.16b, v6.16b // flat8out && flat8in && fm +.endif + sshl \tmp1\().8h, \tmp1\().8h, \tmp6\().8h // av_clip_int2p(p1 - q1, BIT_DEPTH - 1) + + mul \tmp3\().8h, \tmp3\().8h, \tmp5\().8h // 3 * (q0 - p0) + bic \tmp1\().16b, \tmp1\().16b, v5.16b // if (!hev) av_clip_int8 = 0 + movi v2.8h, #4 + add \tmp3\().8h, \tmp3\().8h, \tmp1\().8h // 3 * (q0 - p0) [+ av_clip_int8(p1 - q1)] + movi v3.8h, #3 + sqshl \tmp1\().8h, \tmp3\().8h, \tmp2\().8h + movi \tmp5\().8h, #0 + sshl \tmp1\().8h, \tmp1\().8h, \tmp6\().8h // av_clip_int2p(3 * (q0 - p0) [+ av_clip_int2p(p1 - q1)], BIT_DEPTH - 1) = f + dup \tmp6\().8h, w7 // max pixel value +.if \wd == 16 + bic v6.16b, v6.16b, v7.16b // fm && flat8in && !flat8out +.endif + + ushr \tmp2\().8h, \tmp6\().8h, #1 // (1 << (BIT_DEPTH - 1)) - 1 + + add \tmp3\().8h, \tmp1\().8h, v2.8h // f + 4 + add \tmp4\().8h, \tmp1\().8h, v3.8h // f + 3 + smin \tmp3\().8h, \tmp3\().8h, \tmp2\().8h // FFMIN(f + 4, (1 << (BIT_DEPTH - 1)) - 1) + smin \tmp4\().8h, \tmp4\().8h, \tmp2\().8h // FFMIN(f + 3, (1 << (BIT_DEPTH - 1)) - 1) + sshr \tmp3\().8h, \tmp3\().8h, #3 // f1 + sshr \tmp4\().8h, \tmp4\().8h, #3 // f2 + + add v0.8h, v23.8h, \tmp4\().8h // p0 + f2 + sub v2.8h, v24.8h, \tmp3\().8h // q0 - f1 + smin v0.8h, v0.8h, \tmp6\().8h + smin v2.8h, v2.8h, \tmp6\().8h + srshr \tmp3\().8h, \tmp3\().8h, #1 // f = (f1 + 1) >> 1 + smax v0.8h, v0.8h, \tmp5\().8h // out p0 + smax v2.8h, v2.8h, \tmp5\().8h // out q0 + bit v23.16b, v0.16b, v4.16b // if (fm && !flat8in) + bit v24.16b, v2.16b, v4.16b + + add v0.8h, v22.8h, \tmp3\().8h // p1 + f + sub v2.8h, v25.8h, \tmp3\().8h // q1 - f +.if \wd >= 8 + mov x11, v6.d[0] +.endif + smin v0.8h, v0.8h, \tmp6\().8h + smin v2.8h, v2.8h, \tmp6\().8h +.if \wd >= 8 + mov x12, v6.d[1] +.endif + smax v0.8h, v0.8h, \tmp5\().8h // out p1 + smax v2.8h, v2.8h, \tmp5\().8h // out q1 +.if \wd >= 8 + adds x11, x11, x12 +.endif + bit v22.16b, v0.16b, v5.16b // if (!hev && fm && !flat8in) + bit v25.16b, v2.16b, v5.16b + + // If no pixels need flat8in, jump to flat8out + // (or to a writeout of the inner 4 pixels, for wd=8) +.if \wd >= 8 +.if \wd == 16 + b.eq 6f +.else + b.ne 1f + br x13 +1: +.endif + + // flat8in + add \tmp1\().8h, v20.8h, v21.8h + add \tmp3\().8h, v22.8h, v25.8h + add \tmp5\().8h, v20.8h, v22.8h + add \tmp7\().8h, v23.8h, v26.8h + add v0.8h, \tmp1\().8h, \tmp1\().8h + add v0.8h, v0.8h, v23.8h + add v0.8h, v0.8h, v24.8h + add v0.8h, v0.8h, \tmp5\().8h + sub \tmp3\().8h, \tmp3\().8h, \tmp1\().8h + sub \tmp7\().8h, \tmp7\().8h, \tmp5\().8h + urshr v2.8h, v0.8h, #3 // out p2 + + add v0.8h, v0.8h, \tmp3\().8h + add \tmp1\().8h, v20.8h, v23.8h + add \tmp3\().8h, v24.8h, v27.8h + urshr v3.8h, v0.8h, #3 // out p1 + + add v0.8h, v0.8h, \tmp7\().8h + sub \tmp3\().8h, \tmp3\().8h, \tmp1\().8h + add \tmp5\().8h, v21.8h, v24.8h + add \tmp7\().8h, v25.8h, v27.8h + urshr v4.8h, v0.8h, #3 // out p0 + + add v0.8h, v0.8h, \tmp3\().8h + sub \tmp7\().8h, \tmp7\().8h, \tmp5\().8h + add \tmp1\().8h, v22.8h, v25.8h + add \tmp3\().8h, v26.8h, v27.8h + urshr v5.8h, v0.8h, #3 // out q0 + + add v0.8h, v0.8h, \tmp7\().8h + sub \tmp3\().8h, \tmp3\().8h, \tmp1\().8h + urshr \tmp5\().8h, v0.8h, #3 // out q1 + + add v0.8h, v0.8h, \tmp3\().8h + // 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 v21.16b, v2.16b, v6.16b + bit v22.16b, v3.16b, v6.16b + bit v23.16b, v4.16b, v6.16b + urshr \tmp6\().8h, v0.8h, #3 // out q2 + bit v24.16b, v5.16b, v6.16b + bit v25.16b, \tmp5\().16b, v6.16b + bit v26.16b, \tmp6\().16b, v6.16b +.endif +.if \wd == 16 +6: + orr v2.16b, v6.16b, v7.16b + mov x11, v2.d[0] + mov x12, v2.d[1] + adds x11, x11, x12 + b.ne 1f + // If no pixels needed flat8in nor flat8out, jump to a + // writeout of the inner 4 pixels + br x14 +1: + + mov x11, v7.d[0] + mov x12, v7.d[1] + adds x11, x11, x12 + b.ne 1f + // If no pixels need flat8out, jump to a writeout of the inner 6 pixels + 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). + shl v0.8h, v16.8h, #3 // 8 * v16 + sub v0.8h, v0.8h, v16.8h // 7 * v16 + add v0.8h, v0.8h, v17.8h + add v8.8h, v17.8h, v18.8h + add v10.8h, v19.8h, v20.8h + add v0.8h, v0.8h, v8.8h + add v8.8h, v16.8h, v17.8h + add v12.8h, v21.8h, v22.8h + add v0.8h, v0.8h, v10.8h + add v10.8h, v18.8h, v25.8h + add v14.8h, v23.8h, v24.8h + sub v10.8h, v10.8h, v8.8h + add v0.8h, v0.8h, v12.8h + add v0.8h, v0.8h, v14.8h + add v12.8h, v16.8h, v18.8h + add v14.8h, v19.8h, v26.8h + urshr v2.8h, v0.8h, #4 + + add v0.8h, v0.8h, v10.8h + add v8.8h, v16.8h, v19.8h + add v10.8h, v20.8h, v27.8h + sub v14.8h, v14.8h, v12.8h + bif v2.16b, v17.16b, v7.16b + urshr v3.8h , v0.8h, #4 + + add v0.8h, v0.8h, v14.8h + add v12.8h, v16.8h, v20.8h + add v14.8h, v21.8h, v28.8h + sub v10.8h, v10.8h, v8.8h + bif v3.16b, v18.16b, v7.16b + urshr v4.8h, v0.8h, #4 + + add v0.8h, v0.8h, v10.8h + add v8.8h, v16.8h, v21.8h + add v10.8h, v22.8h, v29.8h + sub v14.8h, v14.8h, v12.8h + bif v4.16b, v19.16b, v7.16b + urshr v5.8h, v0.8h, #4 + + add v0.8h, v0.8h, v14.8h + add v12.8h, v16.8h, v22.8h + add v14.8h, v23.8h, v30.8h + sub v10.8h, v10.8h, v8.8h + bif v5.16b, v20.16b, v7.16b + urshr v6.8h, v0.8h, #4 + + add v0.8h, v0.8h, v10.8h + add v10.8h, v16.8h, v23.8h + sub v14.8h, v14.8h, v12.8h + add v12.8h, v24.8h, v31.8h + bif v6.16b, v21.16b, v7.16b + urshr v8.8h, v0.8h, #4 + + add v0.8h, v0.8h, v14.8h + sub v10.8h, v12.8h, v10.8h + add v12.8h, v17.8h, v24.8h + add v14.8h, v25.8h, v31.8h + bif v8.16b, v22.16b, v7.16b + urshr v9.8h, v0.8h, #4 + + add v0.8h, v0.8h, v10.8h + sub v14.8h, v14.8h, v12.8h + add v12.8h, v26.8h, v31.8h + bif v9.16b, v23.16b, v7.16b + urshr v10.8h, v0.8h, #4 + + add v0.8h, v0.8h, v14.8h + add v14.8h, v18.8h, v25.8h + add v18.8h, v19.8h, v26.8h + sub v12.8h, v12.8h, v14.8h + add v14.8h, v27.8h, v31.8h + bif v10.16b, v24.16b, v7.16b + urshr v11.8h, v0.8h, #4 + + add v0.8h, v0.8h, v12.8h + add v12.8h, v20.8h, v27.8h + sub v14.8h, v14.8h, v18.8h + add v18.8h, v28.8h, v31.8h + bif v11.16b, v25.16b, v7.16b + sub v18.8h, v18.8h, v12.8h + urshr v12.8h, v0.8h, #4 + + add v0.8h, v0.8h, v14.8h + add v14.8h, v21.8h, v28.8h + add v20.8h, v29.8h, v31.8h + bif v12.16b, v26.16b, v7.16b + urshr v13.8h, v0.8h, #4 + + add v0.8h, v0.8h, v18.8h + sub v20.8h, v20.8h, v14.8h + add v18.8h, v22.8h, v29.8h + add v22.8h, v30.8h, v31.8h + bif v13.16b, v27.16b, v7.16b + urshr v14.8h, v0.8h, #4 + + add v0.8h, v0.8h, v20.8h + sub v22.8h, v22.8h, v18.8h + bif v14.16b, v28.16b, v7.16b + urshr v15.8h, v0.8h, #4 + + add v0.8h, v0.8h, v22.8h + bif v15.16b, v29.16b, v7.16b + urshr v17.8h, v0.8h, #4 + bif v17.16b, v30.16b, v7.16b +.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, v16, v17, v18, v19, v28, v29, v30, v31 + ret +endfunc + +function vp9_loop_filter_8 + loop_filter 8, v16, v17, v18, v19, v28, v29, v30, v31 + ret +endfunc + +function vp9_loop_filter_16 + loop_filter 16, v8, v9, v10, v11, v12, v13, v14, v15 + ret +endfunc + +.macro loop_filter_4 + bl vp9_loop_filter_4 +.endm + +.macro loop_filter_8 + // calculate alternative 'return' targets + adr x13, 6f + bl vp9_loop_filter_8 +.endm + +.macro loop_filter_16 + // calculate alternative 'return' targets + adr x14, 7f + adr x15, 8f + bl vp9_loop_filter_16 +.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); + +.macro bpp_frontend func, bpp, push +function ff_\func\()_\bpp\()_neon, export=1 +.if \push + mov x16, x30 + stp d14, d15, [sp, #-0x10]! + stp d12, d13, [sp, #-0x10]! + stp d10, d11, [sp, #-0x10]! + stp d8, d9, [sp, #-0x10]! +.endif + lsl w2, w2, #\bpp - 8 + lsl w3, w3, #\bpp - 8 + lsl w4, w4, #\bpp - 8 + mov x5, #1 << (\bpp - 8) + mov x6, #16 - \bpp + mov x7, #((1 << \bpp) - 1) +.if \push + bl \func\()_16_neon + ldp d8, d9, [sp], 0x10 + ldp d10, d11, [sp], 0x10 + ldp d12, d13, [sp], 0x10 + ldp d14, d15, [sp], 0x10 + br x16 +.else + b \func\()_16_neon +.endif +endfunc +.endm + +.macro bpp_frontends func, push=0 + bpp_frontend \func, 10, \push + bpp_frontend \func, 12, \push +.endm + +.macro bpp_frontend_rep func, suffix, int_suffix, dir, bpp, push +function ff_\func\()_\suffix\()_\bpp\()_neon, export=1 + mov x16, x30 +.if \push + stp d14, d15, [sp, #-0x10]! + stp d12, d13, [sp, #-0x10]! + stp d10, d11, [sp, #-0x10]! + stp d8, d9, [sp, #-0x10]! +.endif + lsl w2, w2, #\bpp - 8 + lsl w3, w3, #\bpp - 8 + lsl w4, w4, #\bpp - 8 + mov x5, #1 << (\bpp - 8) + mov x6, #16 - \bpp + mov x7, #((1 << \bpp) - 1) + bl \func\()_\int_suffix\()_16_neon +.ifc \dir,h + add x0, x0, x1, lsl #3 +.else + add x0, x0, #16 +.endif + bl \func\()_\int_suffix\()_16_neon +.if \push + ldp d8, d9, [sp], 0x10 + ldp d10, d11, [sp], 0x10 + ldp d12, d13, [sp], 0x10 + ldp d14, d15, [sp], 0x10 +.endif + br x16 +endfunc +.endm + +.macro bpp_frontends_rep func, suffix, int_suffix, dir, push=0 + bpp_frontend_rep \func, \suffix, \int_suffix, \dir, 10, \push + bpp_frontend_rep \func, \suffix, \int_suffix, \dir, 12, \push +.endm + +.macro bpp_frontend_mix2 wd1, wd2, dir, bpp +function ff_vp9_loop_filter_\dir\()_\wd1\()\wd2\()_16_\bpp\()_neon, export=1 + mov x16, x30 + lsr w8, w2, #8 + lsr w14, w3, #8 + lsr w15, w4, #8 + and w2, w2, #0xff + and w3, w3, #0xff + and w4, w4, #0xff + lsl w2, w2, #\bpp - 8 + lsl w3, w3, #\bpp - 8 + lsl w4, w4, #\bpp - 8 + mov x5, #1 << (\bpp - 8) + mov x6, #16 - \bpp + mov x7, #((1 << \bpp) - 1) + bl vp9_loop_filter_\dir\()_\wd1\()_8_16_neon +.ifc \dir,h + add x0, x0, x1, lsl #3 +.else + add x0, x0, #16 +.endif + lsl w2, w8, #\bpp - 8 + lsl w3, w14, #\bpp - 8 + lsl w4, w15, #\bpp - 8 + bl vp9_loop_filter_\dir\()_\wd2\()_8_16_neon + br x16 +endfunc +.endm + +.macro bpp_frontends_mix2 wd1, wd2 + bpp_frontend_mix2 \wd1, \wd2, v, 10 + bpp_frontend_mix2 \wd1, \wd2, v, 12 + bpp_frontend_mix2 \wd1, \wd2, h, 10 + bpp_frontend_mix2 \wd1, \wd2, h, 12 +.endm + +function vp9_loop_filter_v_4_8_16_neon + mov x10, x30 + sub x9, x0, x1, lsl #2 + ld1 {v20.8h}, [x9], x1 // p3 + ld1 {v24.8h}, [x0], x1 // q0 + ld1 {v21.8h}, [x9], x1 // p2 + ld1 {v25.8h}, [x0], x1 // q1 + ld1 {v22.8h}, [x9], x1 // p1 + ld1 {v26.8h}, [x0], x1 // q2 + ld1 {v23.8h}, [x9], x1 // p0 + ld1 {v27.8h}, [x0], x1 // q3 + sub x0, x0, x1, lsl #2 + sub x9, x9, x1, lsl #1 + + loop_filter_4 + + st1 {v22.8h}, [x9], x1 + st1 {v24.8h}, [x0], x1 + st1 {v23.8h}, [x9], x1 + st1 {v25.8h}, [x0], x1 + sub x0, x0, x1, lsl #1 + + br x10 +endfunc + +bpp_frontends vp9_loop_filter_v_4_8 + +function vp9_loop_filter_h_4_8_16_neon + mov x10, x30 + sub x9, x0, #8 + add x0, x9, x1, lsl #2 + ld1 {v20.8h}, [x9], x1 + ld1 {v24.8h}, [x0], x1 + ld1 {v21.8h}, [x9], x1 + ld1 {v25.8h}, [x0], x1 + ld1 {v22.8h}, [x9], x1 + ld1 {v26.8h}, [x0], x1 + ld1 {v23.8h}, [x9], x1 + ld1 {v27.8h}, [x0], x1 + + sub x9, x9, x1, lsl #2 + sub x0, x0, x1, lsl #3 + add x0, x0, #8 + + transpose_8x8H v20, v21, v22, v23, v24, v25, v26, v27, v28, v29 + + loop_filter_4 + + // Move x9 forward by 2 pixels; we don't need to rewrite the + // outermost 2 pixels since they aren't changed. + add x9, x9, #4 + add x0, x9, x1, lsl #2 + + // 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_4x8H v22, v23, v24, v25, v26, v27, v28, v29 + st1 {v22.d}[0], [x9], x1 + st1 {v22.d}[1], [x0], x1 + st1 {v23.d}[0], [x9], x1 + st1 {v23.d}[1], [x0], x1 + st1 {v24.d}[0], [x9], x1 + st1 {v24.d}[1], [x0], x1 + st1 {v25.d}[0], [x9], x1 + st1 {v25.d}[1], [x0], x1 + sub x0, x0, x1, lsl #3 + add x0, x0, #4 + + br x10 +endfunc + +bpp_frontends vp9_loop_filter_h_4_8 + +function vp9_loop_filter_v_8_8_16_neon + mov x10, x30 + sub x9, x0, x1, lsl #2 + ld1 {v20.8h}, [x9], x1 // p3 + ld1 {v24.8h}, [x0], x1 // q0 + ld1 {v21.8h}, [x9], x1 // p2 + ld1 {v25.8h}, [x0], x1 // q1 + ld1 {v22.8h}, [x9], x1 // p1 + ld1 {v26.8h}, [x0], x1 // q2 + ld1 {v23.8h}, [x9], x1 // p0 + ld1 {v27.8h}, [x0], x1 // q3 + sub x9, x9, x1, lsl #2 + sub x0, x0, x1, lsl #2 + add x9, x9, x1 + + loop_filter_8 + + st1 {v21.8h}, [x9], x1 + st1 {v24.8h}, [x0], x1 + st1 {v22.8h}, [x9], x1 + st1 {v25.8h}, [x0], x1 + st1 {v23.8h}, [x9], x1 + st1 {v26.8h}, [x0], x1 + sub x0, x0, x1, lsl #1 + sub x0, x0, x1 + + br x10 +6: + sub x9, x0, x1, lsl #1 + st1 {v22.8h}, [x9], x1 + st1 {v24.8h}, [x0], x1 + st1 {v23.8h}, [x9], x1 + st1 {v25.8h}, [x0], x1 + sub x0, x0, x1, lsl #1 + br x10 +endfunc + +bpp_frontends vp9_loop_filter_v_8_8 + +function vp9_loop_filter_h_8_8_16_neon + mov x10, x30 + sub x9, x0, #8 + add x0, x9, x1, lsl #2 + ld1 {v20.8h}, [x9], x1 + ld1 {v24.8h}, [x0], x1 + ld1 {v21.8h}, [x9], x1 + ld1 {v25.8h}, [x0], x1 + ld1 {v22.8h}, [x9], x1 + ld1 {v26.8h}, [x0], x1 + ld1 {v23.8h}, [x9], x1 + ld1 {v27.8h}, [x0], x1 + + sub x9, x9, x1, lsl #2 + sub x0, x0, x1, lsl #3 + add x0, x0, #8 + + transpose_8x8H v20, v21, v22, v23, v24, v25, v26, v27, v28, v29 + + loop_filter_8 + + add x0, x9, x1, lsl #2 + + // Even though only 6 pixels per row have been changed, we write the + // full 8 pixel registers. + transpose_8x8H v20, v21, v22, v23, v24, v25, v26, v27, v28, v29 + + st1 {v20.8h}, [x9], x1 + st1 {v24.8h}, [x0], x1 + st1 {v21.8h}, [x9], x1 + st1 {v25.8h}, [x0], x1 + st1 {v22.8h}, [x9], x1 + st1 {v26.8h}, [x0], x1 + st1 {v23.8h}, [x9], x1 + st1 {v27.8h}, [x0], x1 + sub x0, x0, x1, lsl #3 + add x0, x0, #8 + + 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, #4 + add x0, x9, x1, lsl #2 + transpose_4x8H v22, v23, v24, v25, v26, v27, v28, v29 + st1 {v22.d}[0], [x9], x1 + st1 {v22.d}[1], [x0], x1 + st1 {v23.d}[0], [x9], x1 + st1 {v23.d}[1], [x0], x1 + st1 {v24.d}[0], [x9], x1 + st1 {v24.d}[1], [x0], x1 + st1 {v25.d}[0], [x9], x1 + st1 {v25.d}[1], [x0], x1 + sub x0, x0, x1, lsl #3 + add x0, x0, #4 + br x10 +endfunc + +bpp_frontends vp9_loop_filter_h_8_8 + +bpp_frontends_mix2 4, 4 +bpp_frontends_mix2 4, 8 +bpp_frontends_mix2 8, 4 +bpp_frontends_mix2 8, 8 + +function vp9_loop_filter_v_16_8_16_neon + mov x10, x30 + sub x9, x0, x1, lsl #3 + ld1 {v16.8h}, [x9], x1 // p7 + ld1 {v24.8h}, [x0], x1 // q0 + ld1 {v17.8h}, [x9], x1 // p6 + ld1 {v25.8h}, [x0], x1 // q1 + ld1 {v18.8h}, [x9], x1 // p5 + ld1 {v26.8h}, [x0], x1 // q2 + ld1 {v19.8h}, [x9], x1 // p4 + ld1 {v27.8h}, [x0], x1 // q3 + ld1 {v20.8h}, [x9], x1 // p3 + ld1 {v28.8h}, [x0], x1 // q4 + ld1 {v21.8h}, [x9], x1 // p2 + ld1 {v29.8h}, [x0], x1 // q5 + ld1 {v22.8h}, [x9], x1 // p1 + ld1 {v30.8h}, [x0], x1 // q6 + ld1 {v23.8h}, [x9], x1 // p0 + ld1 {v31.8h}, [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 {v2.8h}, [x9], x1 + st1 {v10.8h}, [x0], x1 + st1 {v3.8h}, [x9], x1 + st1 {v11.8h}, [x0], x1 + st1 {v4.8h}, [x9], x1 + st1 {v12.8h}, [x0], x1 + st1 {v5.8h}, [x9], x1 + st1 {v13.8h}, [x0], x1 + st1 {v6.8h}, [x9], x1 + st1 {v14.8h}, [x0], x1 + st1 {v8.8h}, [x9], x1 + st1 {v15.8h}, [x0], x1 + st1 {v9.8h}, [x9], x1 + st1 {v17.8h}, [x0], x1 + sub x0, x0, x1, lsl #3 + add x0, x0, x1 + + 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 {v21.8h}, [x9], x1 + st1 {v24.8h}, [x0], x1 + st1 {v22.8h}, [x9], x1 + st1 {v25.8h}, [x0], x1 + st1 {v23.8h}, [x9], x1 + st1 {v26.8h}, [x0], x1 + sub x0, x0, x1, lsl #1 + sub x0, x0, x1 + br x10 +7: + sub x9, x0, x1, lsl #1 + st1 {v22.8h}, [x9], x1 + st1 {v24.8h}, [x0], x1 + st1 {v23.8h}, [x9], x1 + st1 {v25.8h}, [x0], x1 + sub x0, x0, x1, lsl #1 + br x10 +endfunc + +bpp_frontends vp9_loop_filter_v_16_8, push=1 +bpp_frontends_rep vp9_loop_filter_v_16, 16, 8, v, push=1 + +function vp9_loop_filter_h_16_8_16_neon + mov x10, x30 + sub x9, x0, #16 + ld1 {v16.8h}, [x9], x1 + ld1 {v24.8h}, [x0], x1 + ld1 {v17.8h}, [x9], x1 + ld1 {v25.8h}, [x0], x1 + ld1 {v18.8h}, [x9], x1 + ld1 {v26.8h}, [x0], x1 + ld1 {v19.8h}, [x9], x1 + ld1 {v27.8h}, [x0], x1 + ld1 {v20.8h}, [x9], x1 + ld1 {v28.8h}, [x0], x1 + ld1 {v21.8h}, [x9], x1 + ld1 {v29.8h}, [x0], x1 + ld1 {v22.8h}, [x9], x1 + ld1 {v30.8h}, [x0], x1 + ld1 {v23.8h}, [x9], x1 + ld1 {v31.8h}, [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_8x8H v16, v17, v18, v19, v20, v21, v22, v23, v0, v1 + transpose_8x8H v24, v25, v26, v27, v28, v29, v30, v31, v0, v1 + + loop_filter_16 + + transpose_8x8H v16, v2, v3, v4, v5, v6, v8, v9, v0, v1 + transpose_8x8H v10, v11, v12, v13, v14, v15, v17, v31, v0, v1 + + st1 {v16.8h}, [x9], x1 + st1 {v10.8h}, [x0], x1 + st1 {v2.8h}, [x9], x1 + st1 {v11.8h}, [x0], x1 + st1 {v3.8h}, [x9], x1 + st1 {v12.8h}, [x0], x1 + st1 {v4.8h}, [x9], x1 + st1 {v13.8h}, [x0], x1 + st1 {v5.8h}, [x9], x1 + st1 {v14.8h}, [x0], x1 + st1 {v6.8h}, [x9], x1 + st1 {v15.8h}, [x0], x1 + st1 {v8.8h}, [x9], x1 + st1 {v17.8h}, [x0], x1 + st1 {v9.8h}, [x9], x1 + st1 {v31.8h}, [x0], x1 + sub x0, x0, x1, lsl #3 + + br x10 +8: + // The same writeback as in loop_filter_h_8_8 + sub x9, x0, #8 + add x0, x9, x1, lsl #2 + transpose_8x8H v20, v21, v22, v23, v24, v25, v26, v27, v28, v29 + + st1 {v20.8h}, [x9], x1 + st1 {v24.8h}, [x0], x1 + st1 {v21.8h}, [x9], x1 + st1 {v25.8h}, [x0], x1 + st1 {v22.8h}, [x9], x1 + st1 {v26.8h}, [x0], x1 + st1 {v23.8h}, [x9], x1 + st1 {v27.8h}, [x0], x1 + sub x0, x0, x1, lsl #3 + add x0, x0, #8 + br x10 +7: + // The same writeback as in loop_filter_h_4_8 + sub x9, x0, #4 + add x0, x9, x1, lsl #2 + transpose_4x8H v22, v23, v24, v25, v26, v27, v28, v29 + st1 {v22.d}[0], [x9], x1 + st1 {v22.d}[1], [x0], x1 + st1 {v23.d}[0], [x9], x1 + st1 {v23.d}[1], [x0], x1 + st1 {v24.d}[0], [x9], x1 + st1 {v24.d}[1], [x0], x1 + st1 {v25.d}[0], [x9], x1 + st1 {v25.d}[1], [x0], x1 + sub x0, x0, x1, lsl #3 + add x0, x0, #4 + br x10 +endfunc + +bpp_frontends vp9_loop_filter_h_16_8, push=1 +bpp_frontends_rep vp9_loop_filter_h_16, 16, 8, h, push=1 |