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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /third_party/aom/av1/encoder/x86/highbd_temporal_filter_sse2.c | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | third_party/aom/av1/encoder/x86/highbd_temporal_filter_sse2.c | 341 |
1 files changed, 341 insertions, 0 deletions
diff --git a/third_party/aom/av1/encoder/x86/highbd_temporal_filter_sse2.c b/third_party/aom/av1/encoder/x86/highbd_temporal_filter_sse2.c new file mode 100644 index 0000000000..2032847083 --- /dev/null +++ b/third_party/aom/av1/encoder/x86/highbd_temporal_filter_sse2.c @@ -0,0 +1,341 @@ +/* + * Copyright (c) 2020, 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 <assert.h> +#include <emmintrin.h> + +#include "config/av1_rtcd.h" +#include "aom_dsp/mathutils.h" +#include "av1/encoder/encoder.h" +#include "av1/encoder/temporal_filter.h" + +// For the squared error buffer, keep a padding for 4 samples +#define SSE_STRIDE (BW + 4) + +DECLARE_ALIGNED(32, static const uint32_t, sse_bytemask_2x4[4][2][4]) = { + { { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF }, + { 0xFFFFFFFF, 0x00000000, 0x00000000, 0x00000000 } }, + { { 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF }, + { 0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000 } }, + { { 0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF }, + { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0x00000000 } }, + { { 0x00000000, 0x00000000, 0x00000000, 0xFFFFFFFF }, + { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF } } +}; + +static void get_squared_error(const uint16_t *frame1, const unsigned int stride, + const uint16_t *frame2, + const unsigned int stride2, const int block_width, + const int block_height, uint32_t *frame_sse, + const unsigned int dst_stride) { + const uint16_t *src1 = frame1; + const uint16_t *src2 = frame2; + uint32_t *dst = frame_sse; + + for (int i = 0; i < block_height; i++) { + for (int j = 0; j < block_width; j += 8) { + __m128i vsrc1 = _mm_loadu_si128((__m128i *)(src1 + j)); + __m128i vsrc2 = _mm_loadu_si128((__m128i *)(src2 + j)); + + __m128i vdiff = _mm_sub_epi16(vsrc1, vsrc2); + __m128i vmullo = _mm_mullo_epi16(vdiff, vdiff); + __m128i vmullh = _mm_mulhi_epi16(vdiff, vdiff); + + __m128i vres1 = _mm_unpacklo_epi16(vmullo, vmullh); + __m128i vres2 = _mm_unpackhi_epi16(vmullo, vmullh); + + _mm_storeu_si128((__m128i *)(dst + j + 2), vres1); + _mm_storeu_si128((__m128i *)(dst + j + 6), vres2); + } + + src1 += stride; + src2 += stride2; + dst += dst_stride; + } +} + +static void xx_load_and_pad(uint32_t *src, __m128i *dstvec, int col, + int block_width) { + __m128i vtmp1 = _mm_loadu_si128((__m128i *)src); + __m128i vtmp2 = _mm_loadu_si128((__m128i *)(src + 4)); + // For the first column, replicate the first element twice to the left + dstvec[0] = (col) ? vtmp1 : _mm_shuffle_epi32(vtmp1, 0xEA); + // For the last column, replicate the last element twice to the right + dstvec[1] = (col < block_width - 4) ? vtmp2 : _mm_shuffle_epi32(vtmp2, 0x54); +} + +static int32_t xx_mask_and_hadd(__m128i vsum1, __m128i vsum2, int i) { + __m128i veca, vecb; + // Mask and obtain the required 5 values inside the vector + veca = _mm_and_si128(vsum1, *(__m128i *)sse_bytemask_2x4[i][0]); + vecb = _mm_and_si128(vsum2, *(__m128i *)sse_bytemask_2x4[i][1]); + // A = [A0+B0, A1+B1, A2+B2, A3+B3] + veca = _mm_add_epi32(veca, vecb); + // B = [A2+B2, A3+B3, 0, 0] + vecb = _mm_srli_si128(veca, 8); + // A = [A0+B0+A2+B2, A1+B1+A3+B3, X, X] + veca = _mm_add_epi32(veca, vecb); + // B = [A1+B1+A3+B3, 0, 0, 0] + vecb = _mm_srli_si128(veca, 4); + // A = [A0+B0+A2+B2+A1+B1+A3+B3, X, X, X] + veca = _mm_add_epi32(veca, vecb); + return _mm_cvtsi128_si32(veca); +} + +static void highbd_apply_temporal_filter( + const uint16_t *frame1, const unsigned int stride, const uint16_t *frame2, + const unsigned int stride2, const int block_width, const int block_height, + const int *subblock_mses, unsigned int *accumulator, uint16_t *count, + uint32_t *frame_sse, uint32_t *luma_sse_sum, int bd, + const double inv_num_ref_pixels, const double decay_factor, + const double inv_factor, const double weight_factor, double *d_factor, + int tf_wgt_calc_lvl) { + assert(((block_width == 16) || (block_width == 32)) && + ((block_height == 16) || (block_height == 32))); + + uint32_t acc_5x5_sse[BH][BW]; + + get_squared_error(frame1, stride, frame2, stride2, block_width, block_height, + frame_sse, SSE_STRIDE); + + __m128i vsrc[5][2]; + + // Traverse 4 columns at a time + // First and last columns will require padding + for (int col = 0; col < block_width; col += 4) { + uint32_t *src = frame_sse + col; + + // Load and pad(for first and last col) 3 rows from the top + for (int i = 2; i < 5; i++) { + xx_load_and_pad(src, vsrc[i], col, block_width); + src += SSE_STRIDE; + } + + // Padding for top 2 rows + vsrc[0][0] = vsrc[2][0]; + vsrc[0][1] = vsrc[2][1]; + vsrc[1][0] = vsrc[2][0]; + vsrc[1][1] = vsrc[2][1]; + + for (int row = 0; row < block_height - 3; row++) { + __m128i vsum11 = _mm_add_epi32(vsrc[0][0], vsrc[1][0]); + __m128i vsum12 = _mm_add_epi32(vsrc[2][0], vsrc[3][0]); + __m128i vsum13 = _mm_add_epi32(vsum11, vsum12); + __m128i vsum1 = _mm_add_epi32(vsum13, vsrc[4][0]); + + __m128i vsum21 = _mm_add_epi32(vsrc[0][1], vsrc[1][1]); + __m128i vsum22 = _mm_add_epi32(vsrc[2][1], vsrc[3][1]); + __m128i vsum23 = _mm_add_epi32(vsum21, vsum22); + __m128i vsum2 = _mm_add_epi32(vsum23, vsrc[4][1]); + + vsrc[0][0] = vsrc[1][0]; + vsrc[0][1] = vsrc[1][1]; + vsrc[1][0] = vsrc[2][0]; + vsrc[1][1] = vsrc[2][1]; + vsrc[2][0] = vsrc[3][0]; + vsrc[2][1] = vsrc[3][1]; + vsrc[3][0] = vsrc[4][0]; + vsrc[3][1] = vsrc[4][1]; + + // Load next row + xx_load_and_pad(src, vsrc[4], col, block_width); + src += SSE_STRIDE; + + acc_5x5_sse[row][col] = xx_mask_and_hadd(vsum1, vsum2, 0); + acc_5x5_sse[row][col + 1] = xx_mask_and_hadd(vsum1, vsum2, 1); + acc_5x5_sse[row][col + 2] = xx_mask_and_hadd(vsum1, vsum2, 2); + acc_5x5_sse[row][col + 3] = xx_mask_and_hadd(vsum1, vsum2, 3); + } + for (int row = block_height - 3; row < block_height; row++) { + __m128i vsum11 = _mm_add_epi32(vsrc[0][0], vsrc[1][0]); + __m128i vsum12 = _mm_add_epi32(vsrc[2][0], vsrc[3][0]); + __m128i vsum13 = _mm_add_epi32(vsum11, vsum12); + __m128i vsum1 = _mm_add_epi32(vsum13, vsrc[4][0]); + + __m128i vsum21 = _mm_add_epi32(vsrc[0][1], vsrc[1][1]); + __m128i vsum22 = _mm_add_epi32(vsrc[2][1], vsrc[3][1]); + __m128i vsum23 = _mm_add_epi32(vsum21, vsum22); + __m128i vsum2 = _mm_add_epi32(vsum23, vsrc[4][1]); + + vsrc[0][0] = vsrc[1][0]; + vsrc[0][1] = vsrc[1][1]; + vsrc[1][0] = vsrc[2][0]; + vsrc[1][1] = vsrc[2][1]; + vsrc[2][0] = vsrc[3][0]; + vsrc[2][1] = vsrc[3][1]; + vsrc[3][0] = vsrc[4][0]; + vsrc[3][1] = vsrc[4][1]; + + acc_5x5_sse[row][col] = xx_mask_and_hadd(vsum1, vsum2, 0); + acc_5x5_sse[row][col + 1] = xx_mask_and_hadd(vsum1, vsum2, 1); + acc_5x5_sse[row][col + 2] = xx_mask_and_hadd(vsum1, vsum2, 2); + acc_5x5_sse[row][col + 3] = xx_mask_and_hadd(vsum1, vsum2, 3); + } + } + + double subblock_mses_scaled[4]; + double d_factor_decayed[4]; + for (int idx = 0; idx < 4; idx++) { + subblock_mses_scaled[idx] = subblock_mses[idx] * inv_factor; + d_factor_decayed[idx] = d_factor[idx] * decay_factor; + } + if (tf_wgt_calc_lvl == 0) { + for (int i = 0, k = 0; i < block_height; i++) { + const int y_blk_raster_offset = (i >= block_height / 2) * 2; + for (int j = 0; j < block_width; j++, k++) { + const int pixel_value = frame2[i * stride2 + j]; + uint32_t diff_sse = acc_5x5_sse[i][j] + luma_sse_sum[i * BW + j]; + + // Scale down the difference for high bit depth input. + diff_sse >>= ((bd - 8) * 2); + + const double window_error = diff_sse * inv_num_ref_pixels; + const int subblock_idx = y_blk_raster_offset + (j >= block_width / 2); + + const double combined_error = + weight_factor * window_error + subblock_mses_scaled[subblock_idx]; + + double scaled_error = combined_error * d_factor_decayed[subblock_idx]; + scaled_error = AOMMIN(scaled_error, 7); + const int weight = (int)(exp(-scaled_error) * TF_WEIGHT_SCALE); + + count[k] += weight; + accumulator[k] += weight * pixel_value; + } + } + } else { + for (int i = 0, k = 0; i < block_height; i++) { + const int y_blk_raster_offset = (i >= block_height / 2) * 2; + for (int j = 0; j < block_width; j++, k++) { + const int pixel_value = frame2[i * stride2 + j]; + uint32_t diff_sse = acc_5x5_sse[i][j] + luma_sse_sum[i * BW + j]; + + // Scale down the difference for high bit depth input. + diff_sse >>= ((bd - 8) * 2); + + const double window_error = diff_sse * inv_num_ref_pixels; + const int subblock_idx = y_blk_raster_offset + (j >= block_width / 2); + + const double combined_error = + weight_factor * window_error + subblock_mses_scaled[subblock_idx]; + + double scaled_error = combined_error * d_factor_decayed[subblock_idx]; + scaled_error = AOMMIN(scaled_error, 7); + const float fweight = + approx_exp((float)-scaled_error) * TF_WEIGHT_SCALE; + const int weight = iroundpf(fweight); + + count[k] += weight; + accumulator[k] += weight * pixel_value; + } + } + } +} + +void av1_highbd_apply_temporal_filter_sse2( + const YV12_BUFFER_CONFIG *frame_to_filter, const MACROBLOCKD *mbd, + const BLOCK_SIZE block_size, const int mb_row, const int mb_col, + const int num_planes, const double *noise_levels, const MV *subblock_mvs, + const int *subblock_mses, const int q_factor, const int filter_strength, + int tf_wgt_calc_lvl, const uint8_t *pred, uint32_t *accum, + uint16_t *count) { + const int is_high_bitdepth = frame_to_filter->flags & YV12_FLAG_HIGHBITDEPTH; + assert(block_size == BLOCK_32X32 && "Only support 32x32 block with sse2!"); + assert(TF_WINDOW_LENGTH == 5 && "Only support window length 5 with sse2!"); + assert(num_planes >= 1 && num_planes <= MAX_MB_PLANE); + (void)is_high_bitdepth; + + const int mb_height = block_size_high[block_size]; + const int mb_width = block_size_wide[block_size]; + const int frame_height = frame_to_filter->y_crop_height; + const int frame_width = frame_to_filter->y_crop_width; + const int min_frame_size = AOMMIN(frame_height, frame_width); + // Variables to simplify combined error calculation. + const double inv_factor = 1.0 / ((TF_WINDOW_BLOCK_BALANCE_WEIGHT + 1) * + TF_SEARCH_ERROR_NORM_WEIGHT); + const double weight_factor = + (double)TF_WINDOW_BLOCK_BALANCE_WEIGHT * inv_factor; + // Adjust filtering based on q. + // Larger q -> stronger filtering -> larger weight. + // Smaller q -> weaker filtering -> smaller weight. + double q_decay = pow((double)q_factor / TF_Q_DECAY_THRESHOLD, 2); + q_decay = CLIP(q_decay, 1e-5, 1); + if (q_factor >= TF_QINDEX_CUTOFF) { + // Max q_factor is 255, therefore the upper bound of q_decay is 8. + // We do not need a clip here. + q_decay = 0.5 * pow((double)q_factor / 64, 2); + } + // Smaller strength -> smaller filtering weight. + double s_decay = pow((double)filter_strength / TF_STRENGTH_THRESHOLD, 2); + s_decay = CLIP(s_decay, 1e-5, 1); + double d_factor[4] = { 0 }; + uint32_t frame_sse[SSE_STRIDE * BH] = { 0 }; + uint32_t luma_sse_sum[BW * BH] = { 0 }; + uint16_t *pred1 = CONVERT_TO_SHORTPTR(pred); + + for (int subblock_idx = 0; subblock_idx < 4; subblock_idx++) { + // Larger motion vector -> smaller filtering weight. + const MV mv = subblock_mvs[subblock_idx]; + const double distance = sqrt(pow(mv.row, 2) + pow(mv.col, 2)); + double distance_threshold = min_frame_size * TF_SEARCH_DISTANCE_THRESHOLD; + distance_threshold = AOMMAX(distance_threshold, 1); + d_factor[subblock_idx] = distance / distance_threshold; + d_factor[subblock_idx] = AOMMAX(d_factor[subblock_idx], 1); + } + + // Handle planes in sequence. + int plane_offset = 0; + for (int plane = 0; plane < num_planes; ++plane) { + const uint32_t plane_h = mb_height >> mbd->plane[plane].subsampling_y; + const uint32_t plane_w = mb_width >> mbd->plane[plane].subsampling_x; + const uint32_t frame_stride = frame_to_filter->strides[plane == 0 ? 0 : 1]; + const int frame_offset = mb_row * plane_h * frame_stride + mb_col * plane_w; + + const uint16_t *ref = + CONVERT_TO_SHORTPTR(frame_to_filter->buffers[plane]) + frame_offset; + const int ss_x_shift = + mbd->plane[plane].subsampling_x - mbd->plane[0].subsampling_x; + const int ss_y_shift = + mbd->plane[plane].subsampling_y - mbd->plane[0].subsampling_y; + const int num_ref_pixels = TF_WINDOW_LENGTH * TF_WINDOW_LENGTH + + ((plane) ? (1 << (ss_x_shift + ss_y_shift)) : 0); + const double inv_num_ref_pixels = 1.0 / num_ref_pixels; + // Larger noise -> larger filtering weight. + const double n_decay = 0.5 + log(2 * noise_levels[plane] + 5.0); + // Decay factors for non-local mean approach. + const double decay_factor = 1 / (n_decay * q_decay * s_decay); + + // Filter U-plane and V-plane using Y-plane. This is because motion + // search is only done on Y-plane, so the information from Y-plane + // will be more accurate. The luma sse sum is reused in both chroma + // planes. + if (plane == AOM_PLANE_U) { + for (unsigned int i = 0, k = 0; i < plane_h; i++) { + for (unsigned int j = 0; j < plane_w; j++, k++) { + for (int ii = 0; ii < (1 << ss_y_shift); ++ii) { + for (int jj = 0; jj < (1 << ss_x_shift); ++jj) { + const int yy = (i << ss_y_shift) + ii; // Y-coord on Y-plane. + const int xx = (j << ss_x_shift) + jj; // X-coord on Y-plane. + luma_sse_sum[i * BW + j] += frame_sse[yy * SSE_STRIDE + xx + 2]; + } + } + } + } + } + + highbd_apply_temporal_filter( + ref, frame_stride, pred1 + plane_offset, plane_w, plane_w, plane_h, + subblock_mses, accum + plane_offset, count + plane_offset, frame_sse, + luma_sse_sum, mbd->bd, inv_num_ref_pixels, decay_factor, inv_factor, + weight_factor, d_factor, tf_wgt_calc_lvl); + plane_offset += plane_h * plane_w; + } +} |