diff options
Diffstat (limited to 'third_party/aom/av1/common/x86/highbd_warp_plane_sse4.c')
| -rw-r--r-- | third_party/aom/av1/common/x86/highbd_warp_plane_sse4.c | 624 |
1 files changed, 624 insertions, 0 deletions
diff --git a/third_party/aom/av1/common/x86/highbd_warp_plane_sse4.c b/third_party/aom/av1/common/x86/highbd_warp_plane_sse4.c new file mode 100644 index 000000000..4bcab0564 --- /dev/null +++ b/third_party/aom/av1/common/x86/highbd_warp_plane_sse4.c @@ -0,0 +1,624 @@ +/* + * 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 <smmintrin.h> + +#include "config/av1_rtcd.h" + +#include "av1/common/warped_motion.h" + +static const uint8_t warp_highbd_arrange_bytes[16] = { + 0, 2, 4, 6, 8, 10, 12, 14, 1, 3, 5, 7, 9, 11, 13, 15 +}; + +static const uint8_t highbd_shuffle_alpha0_mask0[16] = { + 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3 +}; +static const uint8_t highbd_shuffle_alpha0_mask1[16] = { + 4, 5, 6, 7, 4, 5, 6, 7, 4, 5, 6, 7, 4, 5, 6, 7 +}; +static const uint8_t highbd_shuffle_alpha0_mask2[16] = { + 8, 9, 10, 11, 8, 9, 10, 11, 8, 9, 10, 11, 8, 9, 10, 11 +}; +static const uint8_t highbd_shuffle_alpha0_mask3[16] = { + 12, 13, 14, 15, 12, 13, 14, 15, 12, 13, 14, 15, 12, 13, 14, 15 +}; + +static INLINE void highbd_prepare_horizontal_filter_coeff(int alpha, int sx, + __m128i *coeff) { + // Filter even-index pixels + const __m128i tmp_0 = _mm_loadu_si128( + (__m128i *)(warped_filter + ((sx + 0 * alpha) >> WARPEDDIFF_PREC_BITS))); + const __m128i tmp_2 = _mm_loadu_si128( + (__m128i *)(warped_filter + ((sx + 2 * alpha) >> WARPEDDIFF_PREC_BITS))); + const __m128i tmp_4 = _mm_loadu_si128( + (__m128i *)(warped_filter + ((sx + 4 * alpha) >> WARPEDDIFF_PREC_BITS))); + const __m128i tmp_6 = _mm_loadu_si128( + (__m128i *)(warped_filter + ((sx + 6 * alpha) >> WARPEDDIFF_PREC_BITS))); + + // coeffs 0 1 0 1 2 3 2 3 for pixels 0, 2 + const __m128i tmp_8 = _mm_unpacklo_epi32(tmp_0, tmp_2); + // coeffs 0 1 0 1 2 3 2 3 for pixels 4, 6 + const __m128i tmp_10 = _mm_unpacklo_epi32(tmp_4, tmp_6); + // coeffs 4 5 4 5 6 7 6 7 for pixels 0, 2 + const __m128i tmp_12 = _mm_unpackhi_epi32(tmp_0, tmp_2); + // coeffs 4 5 4 5 6 7 6 7 for pixels 4, 6 + const __m128i tmp_14 = _mm_unpackhi_epi32(tmp_4, tmp_6); + + // coeffs 0 1 0 1 0 1 0 1 for pixels 0, 2, 4, 6 + coeff[0] = _mm_unpacklo_epi64(tmp_8, tmp_10); + // coeffs 2 3 2 3 2 3 2 3 for pixels 0, 2, 4, 6 + coeff[2] = _mm_unpackhi_epi64(tmp_8, tmp_10); + // coeffs 4 5 4 5 4 5 4 5 for pixels 0, 2, 4, 6 + coeff[4] = _mm_unpacklo_epi64(tmp_12, tmp_14); + // coeffs 6 7 6 7 6 7 6 7 for pixels 0, 2, 4, 6 + coeff[6] = _mm_unpackhi_epi64(tmp_12, tmp_14); + + // Filter odd-index pixels + const __m128i tmp_1 = _mm_loadu_si128( + (__m128i *)(warped_filter + ((sx + 1 * alpha) >> WARPEDDIFF_PREC_BITS))); + const __m128i tmp_3 = _mm_loadu_si128( + (__m128i *)(warped_filter + ((sx + 3 * alpha) >> WARPEDDIFF_PREC_BITS))); + const __m128i tmp_5 = _mm_loadu_si128( + (__m128i *)(warped_filter + ((sx + 5 * alpha) >> WARPEDDIFF_PREC_BITS))); + const __m128i tmp_7 = _mm_loadu_si128( + (__m128i *)(warped_filter + ((sx + 7 * alpha) >> WARPEDDIFF_PREC_BITS))); + + const __m128i tmp_9 = _mm_unpacklo_epi32(tmp_1, tmp_3); + const __m128i tmp_11 = _mm_unpacklo_epi32(tmp_5, tmp_7); + const __m128i tmp_13 = _mm_unpackhi_epi32(tmp_1, tmp_3); + const __m128i tmp_15 = _mm_unpackhi_epi32(tmp_5, tmp_7); + + coeff[1] = _mm_unpacklo_epi64(tmp_9, tmp_11); + coeff[3] = _mm_unpackhi_epi64(tmp_9, tmp_11); + coeff[5] = _mm_unpacklo_epi64(tmp_13, tmp_15); + coeff[7] = _mm_unpackhi_epi64(tmp_13, tmp_15); +} + +static INLINE void highbd_prepare_horizontal_filter_coeff_alpha0( + int sx, __m128i *coeff) { + // Filter coeff + const __m128i tmp_0 = _mm_loadu_si128( + (__m128i *)(warped_filter + (sx >> WARPEDDIFF_PREC_BITS))); + + coeff[0] = _mm_shuffle_epi8( + tmp_0, _mm_loadu_si128((__m128i *)highbd_shuffle_alpha0_mask0)); + coeff[2] = _mm_shuffle_epi8( + tmp_0, _mm_loadu_si128((__m128i *)highbd_shuffle_alpha0_mask1)); + coeff[4] = _mm_shuffle_epi8( + tmp_0, _mm_loadu_si128((__m128i *)highbd_shuffle_alpha0_mask2)); + coeff[6] = _mm_shuffle_epi8( + tmp_0, _mm_loadu_si128((__m128i *)highbd_shuffle_alpha0_mask3)); + + coeff[1] = coeff[0]; + coeff[3] = coeff[2]; + coeff[5] = coeff[4]; + coeff[7] = coeff[6]; +} + +static INLINE void highbd_filter_src_pixels( + const __m128i *src, const __m128i *src2, __m128i *tmp, __m128i *coeff, + const int offset_bits_horiz, const int reduce_bits_horiz, int k) { + const __m128i src_1 = *src; + const __m128i src2_1 = *src2; + + const __m128i round_const = _mm_set1_epi32((1 << offset_bits_horiz) + + ((1 << reduce_bits_horiz) >> 1)); + + const __m128i res_0 = _mm_madd_epi16(src_1, coeff[0]); + const __m128i res_2 = + _mm_madd_epi16(_mm_alignr_epi8(src2_1, src_1, 4), coeff[2]); + const __m128i res_4 = + _mm_madd_epi16(_mm_alignr_epi8(src2_1, src_1, 8), coeff[4]); + const __m128i res_6 = + _mm_madd_epi16(_mm_alignr_epi8(src2_1, src_1, 12), coeff[6]); + + __m128i res_even = + _mm_add_epi32(_mm_add_epi32(res_0, res_4), _mm_add_epi32(res_2, res_6)); + res_even = _mm_sra_epi32(_mm_add_epi32(res_even, round_const), + _mm_cvtsi32_si128(reduce_bits_horiz)); + + const __m128i res_1 = + _mm_madd_epi16(_mm_alignr_epi8(src2_1, src_1, 2), coeff[1]); + const __m128i res_3 = + _mm_madd_epi16(_mm_alignr_epi8(src2_1, src_1, 6), coeff[3]); + const __m128i res_5 = + _mm_madd_epi16(_mm_alignr_epi8(src2_1, src_1, 10), coeff[5]); + const __m128i res_7 = + _mm_madd_epi16(_mm_alignr_epi8(src2_1, src_1, 14), coeff[7]); + + __m128i res_odd = + _mm_add_epi32(_mm_add_epi32(res_1, res_5), _mm_add_epi32(res_3, res_7)); + res_odd = _mm_sra_epi32(_mm_add_epi32(res_odd, round_const), + _mm_cvtsi32_si128(reduce_bits_horiz)); + + // Combine results into one register. + // We store the columns in the order 0, 2, 4, 6, 1, 3, 5, 7 + // as this order helps with the vertical filter. + tmp[k + 7] = _mm_packs_epi32(res_even, res_odd); +} + +static INLINE void highbd_horiz_filter(const __m128i *src, const __m128i *src2, + __m128i *tmp, int sx, int alpha, int k, + const int offset_bits_horiz, + const int reduce_bits_horiz) { + __m128i coeff[8]; + highbd_prepare_horizontal_filter_coeff(alpha, sx, coeff); + highbd_filter_src_pixels(src, src2, tmp, coeff, offset_bits_horiz, + reduce_bits_horiz, k); +} + +static INLINE void highbd_warp_horizontal_filter_alpha0_beta0( + const uint16_t *ref, __m128i *tmp, int stride, int32_t ix4, int32_t iy4, + int32_t sx4, int alpha, int beta, int p_height, int height, int i, + const int offset_bits_horiz, const int reduce_bits_horiz) { + (void)beta; + (void)alpha; + int k; + + __m128i coeff[8]; + highbd_prepare_horizontal_filter_coeff_alpha0(sx4, coeff); + + for (k = -7; k < AOMMIN(8, p_height - i); ++k) { + int iy = iy4 + k; + if (iy < 0) + iy = 0; + else if (iy > height - 1) + iy = height - 1; + + // Load source pixels + const __m128i src = + _mm_loadu_si128((__m128i *)(ref + iy * stride + ix4 - 7)); + const __m128i src2 = + _mm_loadu_si128((__m128i *)(ref + iy * stride + ix4 + 1)); + highbd_filter_src_pixels(&src, &src2, tmp, coeff, offset_bits_horiz, + reduce_bits_horiz, k); + } +} + +static INLINE void highbd_warp_horizontal_filter_alpha0( + const uint16_t *ref, __m128i *tmp, int stride, int32_t ix4, int32_t iy4, + int32_t sx4, int alpha, int beta, int p_height, int height, int i, + const int offset_bits_horiz, const int reduce_bits_horiz) { + (void)alpha; + int k; + for (k = -7; k < AOMMIN(8, p_height - i); ++k) { + int iy = iy4 + k; + if (iy < 0) + iy = 0; + else if (iy > height - 1) + iy = height - 1; + int sx = sx4 + beta * (k + 4); + + // Load source pixels + const __m128i src = + _mm_loadu_si128((__m128i *)(ref + iy * stride + ix4 - 7)); + const __m128i src2 = + _mm_loadu_si128((__m128i *)(ref + iy * stride + ix4 + 1)); + + __m128i coeff[8]; + highbd_prepare_horizontal_filter_coeff_alpha0(sx, coeff); + highbd_filter_src_pixels(&src, &src2, tmp, coeff, offset_bits_horiz, + reduce_bits_horiz, k); + } +} + +static INLINE void highbd_warp_horizontal_filter_beta0( + const uint16_t *ref, __m128i *tmp, int stride, int32_t ix4, int32_t iy4, + int32_t sx4, int alpha, int beta, int p_height, int height, int i, + const int offset_bits_horiz, const int reduce_bits_horiz) { + (void)beta; + int k; + __m128i coeff[8]; + highbd_prepare_horizontal_filter_coeff(alpha, sx4, coeff); + + for (k = -7; k < AOMMIN(8, p_height - i); ++k) { + int iy = iy4 + k; + if (iy < 0) + iy = 0; + else if (iy > height - 1) + iy = height - 1; + + // Load source pixels + const __m128i src = + _mm_loadu_si128((__m128i *)(ref + iy * stride + ix4 - 7)); + const __m128i src2 = + _mm_loadu_si128((__m128i *)(ref + iy * stride + ix4 + 1)); + highbd_filter_src_pixels(&src, &src2, tmp, coeff, offset_bits_horiz, + reduce_bits_horiz, k); + } +} + +static INLINE void highbd_warp_horizontal_filter( + const uint16_t *ref, __m128i *tmp, int stride, int32_t ix4, int32_t iy4, + int32_t sx4, int alpha, int beta, int p_height, int height, int i, + const int offset_bits_horiz, const int reduce_bits_horiz) { + int k; + for (k = -7; k < AOMMIN(8, p_height - i); ++k) { + int iy = iy4 + k; + if (iy < 0) + iy = 0; + else if (iy > height - 1) + iy = height - 1; + int sx = sx4 + beta * (k + 4); + + // Load source pixels + const __m128i src = + _mm_loadu_si128((__m128i *)(ref + iy * stride + ix4 - 7)); + const __m128i src2 = + _mm_loadu_si128((__m128i *)(ref + iy * stride + ix4 + 1)); + + highbd_horiz_filter(&src, &src2, tmp, sx, alpha, k, offset_bits_horiz, + reduce_bits_horiz); + } +} + +static INLINE void highbd_prepare_warp_horizontal_filter( + const uint16_t *ref, __m128i *tmp, int stride, int32_t ix4, int32_t iy4, + int32_t sx4, int alpha, int beta, int p_height, int height, int i, + const int offset_bits_horiz, const int reduce_bits_horiz) { + if (alpha == 0 && beta == 0) + highbd_warp_horizontal_filter_alpha0_beta0( + ref, tmp, stride, ix4, iy4, sx4, alpha, beta, p_height, height, i, + offset_bits_horiz, reduce_bits_horiz); + + else if (alpha == 0 && beta != 0) + highbd_warp_horizontal_filter_alpha0(ref, tmp, stride, ix4, iy4, sx4, alpha, + beta, p_height, height, i, + offset_bits_horiz, reduce_bits_horiz); + + else if (alpha != 0 && beta == 0) + highbd_warp_horizontal_filter_beta0(ref, tmp, stride, ix4, iy4, sx4, alpha, + beta, p_height, height, i, + offset_bits_horiz, reduce_bits_horiz); + else + highbd_warp_horizontal_filter(ref, tmp, stride, ix4, iy4, sx4, alpha, beta, + p_height, height, i, offset_bits_horiz, + reduce_bits_horiz); +} + +void av1_highbd_warp_affine_sse4_1(const int32_t *mat, const uint16_t *ref, + int width, int height, int stride, + uint16_t *pred, int p_col, int p_row, + int p_width, int p_height, int p_stride, + int subsampling_x, int subsampling_y, int bd, + ConvolveParams *conv_params, int16_t alpha, + int16_t beta, int16_t gamma, int16_t delta) { + __m128i tmp[15]; + int i, j, k; + const int reduce_bits_horiz = + conv_params->round_0 + + AOMMAX(bd + FILTER_BITS - conv_params->round_0 - 14, 0); + const int reduce_bits_vert = conv_params->is_compound + ? conv_params->round_1 + : 2 * FILTER_BITS - reduce_bits_horiz; + const int offset_bits_horiz = bd + FILTER_BITS - 1; + assert(IMPLIES(conv_params->is_compound, conv_params->dst != NULL)); + assert(!(bd == 12 && reduce_bits_horiz < 5)); + assert(IMPLIES(conv_params->do_average, conv_params->is_compound)); + + const int offset_bits_vert = bd + 2 * FILTER_BITS - reduce_bits_horiz; + const __m128i clip_pixel = + _mm_set1_epi16(bd == 10 ? 1023 : (bd == 12 ? 4095 : 255)); + const __m128i reduce_bits_vert_shift = _mm_cvtsi32_si128(reduce_bits_vert); + const __m128i reduce_bits_vert_const = + _mm_set1_epi32(((1 << reduce_bits_vert) >> 1)); + const __m128i res_add_const = _mm_set1_epi32(1 << offset_bits_vert); + const int round_bits = + 2 * FILTER_BITS - conv_params->round_0 - conv_params->round_1; + const int offset_bits = bd + 2 * FILTER_BITS - conv_params->round_0; + const __m128i res_sub_const = + _mm_set1_epi32(-(1 << (offset_bits - conv_params->round_1)) - + (1 << (offset_bits - conv_params->round_1 - 1))); + __m128i round_bits_shift = _mm_cvtsi32_si128(round_bits); + __m128i round_bits_const = _mm_set1_epi32(((1 << round_bits) >> 1)); + + const int w0 = conv_params->fwd_offset; + const int w1 = conv_params->bck_offset; + const __m128i wt0 = _mm_set1_epi32(w0); + const __m128i wt1 = _mm_set1_epi32(w1); + + /* Note: For this code to work, the left/right frame borders need to be + extended by at least 13 pixels each. By the time we get here, other + code will have set up this border, but we allow an explicit check + for debugging purposes. + */ + /*for (i = 0; i < height; ++i) { + for (j = 0; j < 13; ++j) { + assert(ref[i * stride - 13 + j] == ref[i * stride]); + assert(ref[i * stride + width + j] == ref[i * stride + (width - 1)]); + } + }*/ + + for (i = 0; i < p_height; i += 8) { + for (j = 0; j < p_width; j += 8) { + const int32_t src_x = (p_col + j + 4) << subsampling_x; + const int32_t src_y = (p_row + i + 4) << subsampling_y; + const int32_t dst_x = mat[2] * src_x + mat[3] * src_y + mat[0]; + const int32_t dst_y = mat[4] * src_x + mat[5] * src_y + mat[1]; + const int32_t x4 = dst_x >> subsampling_x; + const int32_t y4 = dst_y >> subsampling_y; + + int32_t ix4 = x4 >> WARPEDMODEL_PREC_BITS; + int32_t sx4 = x4 & ((1 << WARPEDMODEL_PREC_BITS) - 1); + int32_t iy4 = y4 >> WARPEDMODEL_PREC_BITS; + int32_t sy4 = y4 & ((1 << WARPEDMODEL_PREC_BITS) - 1); + + // Add in all the constant terms, including rounding and offset + sx4 += alpha * (-4) + beta * (-4) + (1 << (WARPEDDIFF_PREC_BITS - 1)) + + (WARPEDPIXEL_PREC_SHIFTS << WARPEDDIFF_PREC_BITS); + sy4 += gamma * (-4) + delta * (-4) + (1 << (WARPEDDIFF_PREC_BITS - 1)) + + (WARPEDPIXEL_PREC_SHIFTS << WARPEDDIFF_PREC_BITS); + + sx4 &= ~((1 << WARP_PARAM_REDUCE_BITS) - 1); + sy4 &= ~((1 << WARP_PARAM_REDUCE_BITS) - 1); + + // Horizontal filter + // If the block is aligned such that, after clamping, every sample + // would be taken from the leftmost/rightmost column, then we can + // skip the expensive horizontal filter. + if (ix4 <= -7) { + for (k = -7; k < AOMMIN(8, p_height - i); ++k) { + int iy = iy4 + k; + if (iy < 0) + iy = 0; + else if (iy > height - 1) + iy = height - 1; + tmp[k + 7] = _mm_set1_epi16( + (1 << (bd + FILTER_BITS - reduce_bits_horiz - 1)) + + ref[iy * stride] * (1 << (FILTER_BITS - reduce_bits_horiz))); + } + } else if (ix4 >= width + 6) { + for (k = -7; k < AOMMIN(8, p_height - i); ++k) { + int iy = iy4 + k; + if (iy < 0) + iy = 0; + else if (iy > height - 1) + iy = height - 1; + tmp[k + 7] = + _mm_set1_epi16((1 << (bd + FILTER_BITS - reduce_bits_horiz - 1)) + + ref[iy * stride + (width - 1)] * + (1 << (FILTER_BITS - reduce_bits_horiz))); + } + } else if (((ix4 - 7) < 0) || ((ix4 + 9) > width)) { + const int out_of_boundary_left = -(ix4 - 6); + const int out_of_boundary_right = (ix4 + 8) - width; + + for (k = -7; k < AOMMIN(8, p_height - i); ++k) { + int iy = iy4 + k; + if (iy < 0) + iy = 0; + else if (iy > height - 1) + iy = height - 1; + int sx = sx4 + beta * (k + 4); + + // Load source pixels + const __m128i src = + _mm_loadu_si128((__m128i *)(ref + iy * stride + ix4 - 7)); + const __m128i src2 = + _mm_loadu_si128((__m128i *)(ref + iy * stride + ix4 + 1)); + + const __m128i src_01 = _mm_shuffle_epi8( + src, _mm_loadu_si128((__m128i *)warp_highbd_arrange_bytes)); + const __m128i src2_01 = _mm_shuffle_epi8( + src2, _mm_loadu_si128((__m128i *)warp_highbd_arrange_bytes)); + + __m128i src_lo = _mm_unpacklo_epi64(src_01, src2_01); + __m128i src_hi = _mm_unpackhi_epi64(src_01, src2_01); + + if (out_of_boundary_left >= 0) { + const __m128i shuffle_reg_left = + _mm_loadu_si128((__m128i *)warp_pad_left[out_of_boundary_left]); + src_lo = _mm_shuffle_epi8(src_lo, shuffle_reg_left); + src_hi = _mm_shuffle_epi8(src_hi, shuffle_reg_left); + } + + if (out_of_boundary_right >= 0) { + const __m128i shuffle_reg_right = _mm_loadu_si128( + (__m128i *)warp_pad_right[out_of_boundary_right]); + src_lo = _mm_shuffle_epi8(src_lo, shuffle_reg_right); + src_hi = _mm_shuffle_epi8(src_hi, shuffle_reg_right); + } + + const __m128i src_padded = _mm_unpacklo_epi8(src_lo, src_hi); + const __m128i src2_padded = _mm_unpackhi_epi8(src_lo, src_hi); + + highbd_horiz_filter(&src_padded, &src2_padded, tmp, sx, alpha, k, + offset_bits_horiz, reduce_bits_horiz); + } + } else { + highbd_prepare_warp_horizontal_filter( + ref, tmp, stride, ix4, iy4, sx4, alpha, beta, p_height, height, i, + offset_bits_horiz, reduce_bits_horiz); + } + + // Vertical filter + for (k = -4; k < AOMMIN(4, p_height - i - 4); ++k) { + int sy = sy4 + delta * (k + 4); + + // Load from tmp and rearrange pairs of consecutive rows into the + // column order 0 0 2 2 4 4 6 6; 1 1 3 3 5 5 7 7 + const __m128i *src = tmp + (k + 4); + const __m128i src_0 = _mm_unpacklo_epi16(src[0], src[1]); + const __m128i src_2 = _mm_unpacklo_epi16(src[2], src[3]); + const __m128i src_4 = _mm_unpacklo_epi16(src[4], src[5]); + const __m128i src_6 = _mm_unpacklo_epi16(src[6], src[7]); + + // Filter even-index pixels + const __m128i tmp_0 = _mm_loadu_si128( + (__m128i *)(warped_filter + + ((sy + 0 * gamma) >> WARPEDDIFF_PREC_BITS))); + const __m128i tmp_2 = _mm_loadu_si128( + (__m128i *)(warped_filter + + ((sy + 2 * gamma) >> WARPEDDIFF_PREC_BITS))); + const __m128i tmp_4 = _mm_loadu_si128( + (__m128i *)(warped_filter + + ((sy + 4 * gamma) >> WARPEDDIFF_PREC_BITS))); + const __m128i tmp_6 = _mm_loadu_si128( + (__m128i *)(warped_filter + + ((sy + 6 * gamma) >> WARPEDDIFF_PREC_BITS))); + + const __m128i tmp_8 = _mm_unpacklo_epi32(tmp_0, tmp_2); + const __m128i tmp_10 = _mm_unpacklo_epi32(tmp_4, tmp_6); + const __m128i tmp_12 = _mm_unpackhi_epi32(tmp_0, tmp_2); + const __m128i tmp_14 = _mm_unpackhi_epi32(tmp_4, tmp_6); + + const __m128i coeff_0 = _mm_unpacklo_epi64(tmp_8, tmp_10); + const __m128i coeff_2 = _mm_unpackhi_epi64(tmp_8, tmp_10); + const __m128i coeff_4 = _mm_unpacklo_epi64(tmp_12, tmp_14); + const __m128i coeff_6 = _mm_unpackhi_epi64(tmp_12, tmp_14); + + const __m128i res_0 = _mm_madd_epi16(src_0, coeff_0); + const __m128i res_2 = _mm_madd_epi16(src_2, coeff_2); + const __m128i res_4 = _mm_madd_epi16(src_4, coeff_4); + const __m128i res_6 = _mm_madd_epi16(src_6, coeff_6); + + const __m128i res_even = _mm_add_epi32(_mm_add_epi32(res_0, res_2), + _mm_add_epi32(res_4, res_6)); + + // Filter odd-index pixels + const __m128i src_1 = _mm_unpackhi_epi16(src[0], src[1]); + const __m128i src_3 = _mm_unpackhi_epi16(src[2], src[3]); + const __m128i src_5 = _mm_unpackhi_epi16(src[4], src[5]); + const __m128i src_7 = _mm_unpackhi_epi16(src[6], src[7]); + + const __m128i tmp_1 = _mm_loadu_si128( + (__m128i *)(warped_filter + + ((sy + 1 * gamma) >> WARPEDDIFF_PREC_BITS))); + const __m128i tmp_3 = _mm_loadu_si128( + (__m128i *)(warped_filter + + ((sy + 3 * gamma) >> WARPEDDIFF_PREC_BITS))); + const __m128i tmp_5 = _mm_loadu_si128( + (__m128i *)(warped_filter + + ((sy + 5 * gamma) >> WARPEDDIFF_PREC_BITS))); + const __m128i tmp_7 = _mm_loadu_si128( + (__m128i *)(warped_filter + + ((sy + 7 * gamma) >> WARPEDDIFF_PREC_BITS))); + + const __m128i tmp_9 = _mm_unpacklo_epi32(tmp_1, tmp_3); + const __m128i tmp_11 = _mm_unpacklo_epi32(tmp_5, tmp_7); + const __m128i tmp_13 = _mm_unpackhi_epi32(tmp_1, tmp_3); + const __m128i tmp_15 = _mm_unpackhi_epi32(tmp_5, tmp_7); + + const __m128i coeff_1 = _mm_unpacklo_epi64(tmp_9, tmp_11); + const __m128i coeff_3 = _mm_unpackhi_epi64(tmp_9, tmp_11); + const __m128i coeff_5 = _mm_unpacklo_epi64(tmp_13, tmp_15); + const __m128i coeff_7 = _mm_unpackhi_epi64(tmp_13, tmp_15); + + const __m128i res_1 = _mm_madd_epi16(src_1, coeff_1); + const __m128i res_3 = _mm_madd_epi16(src_3, coeff_3); + const __m128i res_5 = _mm_madd_epi16(src_5, coeff_5); + const __m128i res_7 = _mm_madd_epi16(src_7, coeff_7); + + const __m128i res_odd = _mm_add_epi32(_mm_add_epi32(res_1, res_3), + _mm_add_epi32(res_5, res_7)); + + // Rearrange pixels back into the order 0 ... 7 + __m128i res_lo = _mm_unpacklo_epi32(res_even, res_odd); + __m128i res_hi = _mm_unpackhi_epi32(res_even, res_odd); + + if (conv_params->is_compound) { + __m128i *const p = + (__m128i *)&conv_params + ->dst[(i + k + 4) * conv_params->dst_stride + j]; + res_lo = _mm_add_epi32(res_lo, res_add_const); + res_lo = _mm_sra_epi32(_mm_add_epi32(res_lo, reduce_bits_vert_const), + reduce_bits_vert_shift); + + if (conv_params->do_average) { + __m128i *const dst16 = (__m128i *)&pred[(i + k + 4) * p_stride + j]; + __m128i p_32 = _mm_cvtepu16_epi32(_mm_loadl_epi64(p)); + + if (conv_params->use_jnt_comp_avg) { + res_lo = _mm_add_epi32(_mm_mullo_epi32(p_32, wt0), + _mm_mullo_epi32(res_lo, wt1)); + res_lo = _mm_srai_epi32(res_lo, DIST_PRECISION_BITS); + } else { + res_lo = _mm_srai_epi32(_mm_add_epi32(p_32, res_lo), 1); + } + + __m128i res32_lo = _mm_add_epi32(res_lo, res_sub_const); + res32_lo = _mm_sra_epi32(_mm_add_epi32(res32_lo, round_bits_const), + round_bits_shift); + + __m128i res16_lo = _mm_packus_epi32(res32_lo, res32_lo); + res16_lo = _mm_min_epi16(res16_lo, clip_pixel); + _mm_storel_epi64(dst16, res16_lo); + } else { + res_lo = _mm_packus_epi32(res_lo, res_lo); + _mm_storel_epi64(p, res_lo); + } + if (p_width > 4) { + __m128i *const p4 = + (__m128i *)&conv_params + ->dst[(i + k + 4) * conv_params->dst_stride + j + 4]; + + res_hi = _mm_add_epi32(res_hi, res_add_const); + res_hi = + _mm_sra_epi32(_mm_add_epi32(res_hi, reduce_bits_vert_const), + reduce_bits_vert_shift); + if (conv_params->do_average) { + __m128i *const dst16_4 = + (__m128i *)&pred[(i + k + 4) * p_stride + j + 4]; + __m128i p4_32 = _mm_cvtepu16_epi32(_mm_loadl_epi64(p4)); + + if (conv_params->use_jnt_comp_avg) { + res_hi = _mm_add_epi32(_mm_mullo_epi32(p4_32, wt0), + _mm_mullo_epi32(res_hi, wt1)); + res_hi = _mm_srai_epi32(res_hi, DIST_PRECISION_BITS); + } else { + res_hi = _mm_srai_epi32(_mm_add_epi32(p4_32, res_hi), 1); + } + + __m128i res32_hi = _mm_add_epi32(res_hi, res_sub_const); + res32_hi = _mm_sra_epi32( + _mm_add_epi32(res32_hi, round_bits_const), round_bits_shift); + __m128i res16_hi = _mm_packus_epi32(res32_hi, res32_hi); + res16_hi = _mm_min_epi16(res16_hi, clip_pixel); + _mm_storel_epi64(dst16_4, res16_hi); + } else { + res_hi = _mm_packus_epi32(res_hi, res_hi); + _mm_storel_epi64(p4, res_hi); + } + } + } else { + // Round and pack into 8 bits + const __m128i round_const = + _mm_set1_epi32(-(1 << (bd + reduce_bits_vert - 1)) + + ((1 << reduce_bits_vert) >> 1)); + + const __m128i res_lo_round = _mm_srai_epi32( + _mm_add_epi32(res_lo, round_const), reduce_bits_vert); + const __m128i res_hi_round = _mm_srai_epi32( + _mm_add_epi32(res_hi, round_const), reduce_bits_vert); + + __m128i res_16bit = _mm_packs_epi32(res_lo_round, res_hi_round); + // Clamp res_16bit to the range [0, 2^bd - 1] + const __m128i max_val = _mm_set1_epi16((1 << bd) - 1); + const __m128i zero = _mm_setzero_si128(); + res_16bit = _mm_max_epi16(_mm_min_epi16(res_16bit, max_val), zero); + + // Store, blending with 'pred' if needed + __m128i *const p = (__m128i *)&pred[(i + k + 4) * p_stride + j]; + + // Note: If we're outputting a 4x4 block, we need to be very careful + // to only output 4 pixels at this point, to avoid encode/decode + // mismatches when encoding with multiple threads. + if (p_width == 4) { + _mm_storel_epi64(p, res_16bit); + } else { + _mm_storeu_si128(p, res_16bit); + } + } + } + } + } +} |