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-rw-r--r--third_party/aom/av1/common/od_dering_simd.h390
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diff --git a/third_party/aom/av1/common/od_dering_simd.h b/third_party/aom/av1/common/od_dering_simd.h
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-/*
- * Copyright (c) 2016, Alliance for Open Media. All rights reserved
- *
- * This source code is subject to the terms of the BSD 2 Clause License and
- * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
- * was not distributed with this source code in the LICENSE file, you can
- * obtain it at www.aomedia.org/license/software. If the Alliance for Open
- * Media Patent License 1.0 was not distributed with this source code in the
- * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
- */
-
-#include "./av1_rtcd.h"
-#include "./cdef_simd.h"
-#include "./od_dering.h"
-
-/* partial A is a 16-bit vector of the form:
- [x8 x7 x6 x5 x4 x3 x2 x1] and partial B has the form:
- [0 y1 y2 y3 y4 y5 y6 y7].
- This function computes (x1^2+y1^2)*C1 + (x2^2+y2^2)*C2 + ...
- (x7^2+y2^7)*C7 + (x8^2+0^2)*C8 where the C1..C8 constants are in const1
- and const2. */
-static INLINE v128 fold_mul_and_sum(v128 partiala, v128 partialb, v128 const1,
- v128 const2) {
- v128 tmp;
- /* Reverse partial B. */
- partialb = v128_shuffle_8(
- partialb, v128_from_32(0x0f0e0100, 0x03020504, 0x07060908, 0x0b0a0d0c));
- /* Interleave the x and y values of identical indices and pair x8 with 0. */
- tmp = partiala;
- partiala = v128_ziplo_16(partialb, partiala);
- partialb = v128_ziphi_16(partialb, tmp);
- /* Square and add the corresponding x and y values. */
- partiala = v128_madd_s16(partiala, partiala);
- partialb = v128_madd_s16(partialb, partialb);
- /* Multiply by constant. */
- partiala = v128_mullo_s32(partiala, const1);
- partialb = v128_mullo_s32(partialb, const2);
- /* Sum all results. */
- partiala = v128_add_32(partiala, partialb);
- return partiala;
-}
-
-static INLINE v128 hsum4(v128 x0, v128 x1, v128 x2, v128 x3) {
- v128 t0, t1, t2, t3;
- t0 = v128_ziplo_32(x1, x0);
- t1 = v128_ziplo_32(x3, x2);
- t2 = v128_ziphi_32(x1, x0);
- t3 = v128_ziphi_32(x3, x2);
- x0 = v128_ziplo_64(t1, t0);
- x1 = v128_ziphi_64(t1, t0);
- x2 = v128_ziplo_64(t3, t2);
- x3 = v128_ziphi_64(t3, t2);
- return v128_add_32(v128_add_32(x0, x1), v128_add_32(x2, x3));
-}
-
-/* Computes cost for directions 0, 5, 6 and 7. We can call this function again
- to compute the remaining directions. */
-static INLINE v128 compute_directions(v128 lines[8], int32_t tmp_cost1[4]) {
- v128 partial4a, partial4b, partial5a, partial5b, partial7a, partial7b;
- v128 partial6;
- v128 tmp;
- /* Partial sums for lines 0 and 1. */
- partial4a = v128_shl_n_byte(lines[0], 14);
- partial4b = v128_shr_n_byte(lines[0], 2);
- partial4a = v128_add_16(partial4a, v128_shl_n_byte(lines[1], 12));
- partial4b = v128_add_16(partial4b, v128_shr_n_byte(lines[1], 4));
- tmp = v128_add_16(lines[0], lines[1]);
- partial5a = v128_shl_n_byte(tmp, 10);
- partial5b = v128_shr_n_byte(tmp, 6);
- partial7a = v128_shl_n_byte(tmp, 4);
- partial7b = v128_shr_n_byte(tmp, 12);
- partial6 = tmp;
-
- /* Partial sums for lines 2 and 3. */
- partial4a = v128_add_16(partial4a, v128_shl_n_byte(lines[2], 10));
- partial4b = v128_add_16(partial4b, v128_shr_n_byte(lines[2], 6));
- partial4a = v128_add_16(partial4a, v128_shl_n_byte(lines[3], 8));
- partial4b = v128_add_16(partial4b, v128_shr_n_byte(lines[3], 8));
- tmp = v128_add_16(lines[2], lines[3]);
- partial5a = v128_add_16(partial5a, v128_shl_n_byte(tmp, 8));
- partial5b = v128_add_16(partial5b, v128_shr_n_byte(tmp, 8));
- partial7a = v128_add_16(partial7a, v128_shl_n_byte(tmp, 6));
- partial7b = v128_add_16(partial7b, v128_shr_n_byte(tmp, 10));
- partial6 = v128_add_16(partial6, tmp);
-
- /* Partial sums for lines 4 and 5. */
- partial4a = v128_add_16(partial4a, v128_shl_n_byte(lines[4], 6));
- partial4b = v128_add_16(partial4b, v128_shr_n_byte(lines[4], 10));
- partial4a = v128_add_16(partial4a, v128_shl_n_byte(lines[5], 4));
- partial4b = v128_add_16(partial4b, v128_shr_n_byte(lines[5], 12));
- tmp = v128_add_16(lines[4], lines[5]);
- partial5a = v128_add_16(partial5a, v128_shl_n_byte(tmp, 6));
- partial5b = v128_add_16(partial5b, v128_shr_n_byte(tmp, 10));
- partial7a = v128_add_16(partial7a, v128_shl_n_byte(tmp, 8));
- partial7b = v128_add_16(partial7b, v128_shr_n_byte(tmp, 8));
- partial6 = v128_add_16(partial6, tmp);
-
- /* Partial sums for lines 6 and 7. */
- partial4a = v128_add_16(partial4a, v128_shl_n_byte(lines[6], 2));
- partial4b = v128_add_16(partial4b, v128_shr_n_byte(lines[6], 14));
- partial4a = v128_add_16(partial4a, lines[7]);
- tmp = v128_add_16(lines[6], lines[7]);
- partial5a = v128_add_16(partial5a, v128_shl_n_byte(tmp, 4));
- partial5b = v128_add_16(partial5b, v128_shr_n_byte(tmp, 12));
- partial7a = v128_add_16(partial7a, v128_shl_n_byte(tmp, 10));
- partial7b = v128_add_16(partial7b, v128_shr_n_byte(tmp, 6));
- partial6 = v128_add_16(partial6, tmp);
-
- /* Compute costs in terms of partial sums. */
- partial4a =
- fold_mul_and_sum(partial4a, partial4b, v128_from_32(210, 280, 420, 840),
- v128_from_32(105, 120, 140, 168));
- partial7a =
- fold_mul_and_sum(partial7a, partial7b, v128_from_32(210, 420, 0, 0),
- v128_from_32(105, 105, 105, 140));
- partial5a =
- fold_mul_and_sum(partial5a, partial5b, v128_from_32(210, 420, 0, 0),
- v128_from_32(105, 105, 105, 140));
- partial6 = v128_madd_s16(partial6, partial6);
- partial6 = v128_mullo_s32(partial6, v128_dup_32(105));
-
- partial4a = hsum4(partial4a, partial5a, partial6, partial7a);
- v128_store_unaligned(tmp_cost1, partial4a);
- return partial4a;
-}
-
-/* transpose and reverse the order of the lines -- equivalent to a 90-degree
- counter-clockwise rotation of the pixels. */
-static INLINE void array_reverse_transpose_8x8(v128 *in, v128 *res) {
- const v128 tr0_0 = v128_ziplo_16(in[1], in[0]);
- const v128 tr0_1 = v128_ziplo_16(in[3], in[2]);
- const v128 tr0_2 = v128_ziphi_16(in[1], in[0]);
- const v128 tr0_3 = v128_ziphi_16(in[3], in[2]);
- const v128 tr0_4 = v128_ziplo_16(in[5], in[4]);
- const v128 tr0_5 = v128_ziplo_16(in[7], in[6]);
- const v128 tr0_6 = v128_ziphi_16(in[5], in[4]);
- const v128 tr0_7 = v128_ziphi_16(in[7], in[6]);
-
- const v128 tr1_0 = v128_ziplo_32(tr0_1, tr0_0);
- const v128 tr1_1 = v128_ziplo_32(tr0_5, tr0_4);
- const v128 tr1_2 = v128_ziphi_32(tr0_1, tr0_0);
- const v128 tr1_3 = v128_ziphi_32(tr0_5, tr0_4);
- const v128 tr1_4 = v128_ziplo_32(tr0_3, tr0_2);
- const v128 tr1_5 = v128_ziplo_32(tr0_7, tr0_6);
- const v128 tr1_6 = v128_ziphi_32(tr0_3, tr0_2);
- const v128 tr1_7 = v128_ziphi_32(tr0_7, tr0_6);
-
- res[7] = v128_ziplo_64(tr1_1, tr1_0);
- res[6] = v128_ziphi_64(tr1_1, tr1_0);
- res[5] = v128_ziplo_64(tr1_3, tr1_2);
- res[4] = v128_ziphi_64(tr1_3, tr1_2);
- res[3] = v128_ziplo_64(tr1_5, tr1_4);
- res[2] = v128_ziphi_64(tr1_5, tr1_4);
- res[1] = v128_ziplo_64(tr1_7, tr1_6);
- res[0] = v128_ziphi_64(tr1_7, tr1_6);
-}
-
-int SIMD_FUNC(od_dir_find8)(const od_dering_in *img, int stride, int32_t *var,
- int coeff_shift) {
- int i;
- int32_t cost[8];
- int32_t best_cost = 0;
- int best_dir = 0;
- v128 lines[8];
- for (i = 0; i < 8; i++) {
- lines[i] = v128_load_unaligned(&img[i * stride]);
- lines[i] =
- v128_sub_16(v128_shr_s16(lines[i], coeff_shift), v128_dup_16(128));
- }
-
-#if defined(__SSE4_1__)
- /* Compute "mostly vertical" directions. */
- __m128i dir47 = compute_directions(lines, cost + 4);
-
- array_reverse_transpose_8x8(lines, lines);
-
- /* Compute "mostly horizontal" directions. */
- __m128i dir03 = compute_directions(lines, cost);
-
- __m128i max = _mm_max_epi32(dir03, dir47);
- max = _mm_max_epi32(max, _mm_shuffle_epi32(max, _MM_SHUFFLE(1, 0, 3, 2)));
- max = _mm_max_epi32(max, _mm_shuffle_epi32(max, _MM_SHUFFLE(2, 3, 0, 1)));
- best_cost = _mm_cvtsi128_si32(max);
- __m128i t =
- _mm_packs_epi32(_mm_cmpeq_epi32(max, dir03), _mm_cmpeq_epi32(max, dir47));
- best_dir = _mm_movemask_epi8(_mm_packs_epi16(t, t));
- best_dir = get_msb(best_dir ^ (best_dir - 1)); // Count trailing zeros
-#else
- /* Compute "mostly vertical" directions. */
- compute_directions(lines, cost + 4);
-
- array_reverse_transpose_8x8(lines, lines);
-
- /* Compute "mostly horizontal" directions. */
- compute_directions(lines, cost);
-
- for (i = 0; i < 8; i++) {
- if (cost[i] > best_cost) {
- best_cost = cost[i];
- best_dir = i;
- }
- }
-#endif
-
- /* Difference between the optimal variance and the variance along the
- orthogonal direction. Again, the sum(x^2) terms cancel out. */
- *var = best_cost - cost[(best_dir + 4) & 7];
- /* We'd normally divide by 840, but dividing by 1024 is close enough
- for what we're going to do with this. */
- *var >>= 10;
- return best_dir;
-}
-
-void SIMD_FUNC(od_filter_dering_direction_4x4)(uint16_t *y, int ystride,
- const uint16_t *in,
- int threshold, int dir,
- int damping) {
- int i;
- v128 p0, p1, sum, row, res;
- int o1 = OD_DIRECTION_OFFSETS_TABLE[dir][0];
- int o2 = OD_DIRECTION_OFFSETS_TABLE[dir][1];
-
- if (threshold) damping -= get_msb(threshold);
- for (i = 0; i < 4; i += 2) {
- sum = v128_zero();
- row = v128_from_v64(v64_load_aligned(&in[i * OD_FILT_BSTRIDE]),
- v64_load_aligned(&in[(i + 1) * OD_FILT_BSTRIDE]));
-
- // p0 = constrain16(in[i*OD_FILT_BSTRIDE + offset], row, threshold, damping)
- p0 = v128_from_v64(v64_load_unaligned(&in[i * OD_FILT_BSTRIDE + o1]),
- v64_load_unaligned(&in[(i + 1) * OD_FILT_BSTRIDE + o1]));
- p0 = constrain16(p0, row, threshold, damping);
-
- // p1 = constrain16(in[i*OD_FILT_BSTRIDE - offset], row, threshold, damping)
- p1 = v128_from_v64(v64_load_unaligned(&in[i * OD_FILT_BSTRIDE - o1]),
- v64_load_unaligned(&in[(i + 1) * OD_FILT_BSTRIDE - o1]));
- p1 = constrain16(p1, row, threshold, damping);
-
- // sum += 4 * (p0 + p1)
- sum = v128_add_16(sum, v128_shl_n_16(v128_add_16(p0, p1), 2));
-
- // p0 = constrain16(in[i*OD_FILT_BSTRIDE + offset], row, threshold, damping)
- p0 = v128_from_v64(v64_load_unaligned(&in[i * OD_FILT_BSTRIDE + o2]),
- v64_load_unaligned(&in[(i + 1) * OD_FILT_BSTRIDE + o2]));
- p0 = constrain16(p0, row, threshold, damping);
-
- // p1 = constrain16(in[i*OD_FILT_BSTRIDE - offset], row, threshold, damping)
- p1 = v128_from_v64(v64_load_unaligned(&in[i * OD_FILT_BSTRIDE - o2]),
- v64_load_unaligned(&in[(i + 1) * OD_FILT_BSTRIDE - o2]));
- p1 = constrain16(p1, row, threshold, damping);
-
- // sum += 1 * (p0 + p1)
- sum = v128_add_16(sum, v128_add_16(p0, p1));
-
- // res = row + ((sum + 8) >> 4)
- res = v128_add_16(sum, v128_dup_16(8));
- res = v128_shr_n_s16(res, 4);
- res = v128_add_16(row, res);
- v64_store_aligned(&y[i * ystride], v128_high_v64(res));
- v64_store_aligned(&y[(i + 1) * ystride], v128_low_v64(res));
- }
-}
-
-void SIMD_FUNC(od_filter_dering_direction_8x8)(uint16_t *y, int ystride,
- const uint16_t *in,
- int threshold, int dir,
- int damping) {
- int i;
- v128 sum, p0, p1, row, res;
- int o1 = OD_DIRECTION_OFFSETS_TABLE[dir][0];
- int o2 = OD_DIRECTION_OFFSETS_TABLE[dir][1];
- int o3 = OD_DIRECTION_OFFSETS_TABLE[dir][2];
-
- if (threshold) damping -= get_msb(threshold);
- for (i = 0; i < 8; i++) {
- sum = v128_zero();
- row = v128_load_aligned(&in[i * OD_FILT_BSTRIDE]);
-
- // p0 = constrain16(in[i*OD_FILT_BSTRIDE + offset], row, threshold, damping)
- p0 = v128_load_unaligned(&in[i * OD_FILT_BSTRIDE + o1]);
- p0 = constrain16(p0, row, threshold, damping);
-
- // p1 = constrain16(in[i*OD_FILT_BSTRIDE - offset], row, threshold, damping)
- p1 = v128_load_unaligned(&in[i * OD_FILT_BSTRIDE - o1]);
- p1 = constrain16(p1, row, threshold, damping);
-
- // sum += 3 * (p0 + p1)
- p0 = v128_add_16(p0, p1);
- p0 = v128_add_16(p0, v128_shl_n_16(p0, 1));
- sum = v128_add_16(sum, p0);
-
- // p0 = constrain16(in[i*OD_FILT_BSTRIDE + offset], row, threshold, damping)
- p0 = v128_load_unaligned(&in[i * OD_FILT_BSTRIDE + o2]);
- p0 = constrain16(p0, row, threshold, damping);
-
- // p1 = constrain16(in[i*OD_FILT_BSTRIDE - offset], row, threshold, damping)
- p1 = v128_load_unaligned(&in[i * OD_FILT_BSTRIDE - o2]);
- p1 = constrain16(p1, row, threshold, damping);
-
- // sum += 2 * (p0 + p1)
- p0 = v128_shl_n_16(v128_add_16(p0, p1), 1);
- sum = v128_add_16(sum, p0);
-
- // p0 = constrain16(in[i*OD_FILT_BSTRIDE + offset], row, threshold, damping)
- p0 = v128_load_unaligned(&in[i * OD_FILT_BSTRIDE + o3]);
- p0 = constrain16(p0, row, threshold, damping);
-
- // p1 = constrain16(in[i*OD_FILT_BSTRIDE - offset], row, threshold, damping)
- p1 = v128_load_unaligned(&in[i * OD_FILT_BSTRIDE - o3]);
- p1 = constrain16(p1, row, threshold, damping);
-
- // sum += (p0 + p1)
- p0 = v128_add_16(p0, p1);
- sum = v128_add_16(sum, p0);
-
- // res = row + ((sum + 8) >> 4)
- res = v128_add_16(sum, v128_dup_16(8));
- res = v128_shr_n_s16(res, 4);
- res = v128_add_16(row, res);
- v128_store_unaligned(&y[i * ystride], res);
- }
-}
-
-void SIMD_FUNC(copy_8x8_16bit_to_8bit)(uint8_t *dst, int dstride,
- const uint16_t *src, int sstride) {
- int i;
- for (i = 0; i < 8; i++) {
- v128 row = v128_load_unaligned(&src[i * sstride]);
- row = v128_pack_s16_u8(row, row);
- v64_store_unaligned(&dst[i * dstride], v128_low_v64(row));
- }
-}
-
-void SIMD_FUNC(copy_4x4_16bit_to_8bit)(uint8_t *dst, int dstride,
- const uint16_t *src, int sstride) {
- int i;
- for (i = 0; i < 4; i++) {
- v128 row = v128_load_unaligned(&src[i * sstride]);
- row = v128_pack_s16_u8(row, row);
- u32_store_unaligned(&dst[i * dstride], v128_low_u32(row));
- }
-}
-
-void SIMD_FUNC(copy_8x8_16bit_to_16bit)(uint16_t *dst, int dstride,
- const uint16_t *src, int sstride) {
- int i;
- for (i = 0; i < 8; i++) {
- v128 row = v128_load_unaligned(&src[i * sstride]);
- v128_store_unaligned(&dst[i * dstride], row);
- }
-}
-
-void SIMD_FUNC(copy_4x4_16bit_to_16bit)(uint16_t *dst, int dstride,
- const uint16_t *src, int sstride) {
- int i;
- for (i = 0; i < 4; i++) {
- v64 row = v64_load_unaligned(&src[i * sstride]);
- v64_store_unaligned(&dst[i * dstride], row);
- }
-}
-
-void SIMD_FUNC(copy_rect8_8bit_to_16bit)(uint16_t *dst, int dstride,
- const uint8_t *src, int sstride, int v,
- int h) {
- int i, j;
- for (i = 0; i < v; i++) {
- for (j = 0; j < (h & ~0x7); j += 8) {
- v64 row = v64_load_unaligned(&src[i * sstride + j]);
- v128_store_unaligned(&dst[i * dstride + j], v128_unpack_u8_s16(row));
- }
- for (; j < h; j++) {
- dst[i * dstride + j] = src[i * sstride + j];
- }
- }
-}
-
-void SIMD_FUNC(copy_rect8_16bit_to_16bit)(uint16_t *dst, int dstride,
- const uint16_t *src, int sstride,
- int v, int h) {
- int i, j;
- for (i = 0; i < v; i++) {
- for (j = 0; j < (h & ~0x7); j += 8) {
- v128 row = v128_load_unaligned(&src[i * sstride + j]);
- v128_store_unaligned(&dst[i * dstride + j], row);
- }
- for (; j < h; j++) {
- dst[i * dstride + j] = src[i * sstride + j];
- }
- }
-}
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