| /* |
| * Copyright (c) 2017, 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 <immintrin.h> |
| |
| #include "./aom_dsp_rtcd.h" |
| #include "aom_dsp/x86/common_avx2.h" |
| #include "aom_dsp/x86/lpf_common_sse2.h" |
| #include "aom/aom_integer.h" |
| |
| static INLINE void get_limit(const uint8_t *bl, const uint8_t *l, |
| const uint8_t *t, int bd, __m256i *blt, |
| __m256i *lt, __m256i *thr) { |
| const int shift = bd - 8; |
| const __m128i zero = _mm_setzero_si128(); |
| |
| __m128i x = _mm_unpacklo_epi8(_mm_load_si128((const __m128i *)bl), zero); |
| __m256i y = _mm256_inserti128_si256(_mm256_castsi128_si256(x), x, 1); |
| *blt = _mm256_slli_epi16(y, shift); |
| |
| x = _mm_unpacklo_epi8(_mm_load_si128((const __m128i *)l), zero); |
| y = _mm256_inserti128_si256(_mm256_castsi128_si256(x), x, 1); |
| *lt = _mm256_slli_epi16(y, shift); |
| |
| x = _mm_unpacklo_epi8(_mm_load_si128((const __m128i *)t), zero); |
| y = _mm256_inserti128_si256(_mm256_castsi128_si256(x), x, 1); |
| *thr = _mm256_slli_epi16(y, shift); |
| } |
| |
| static INLINE void load_highbd_pixel(const uint16_t *s, int size, int pitch, |
| __m256i *p, __m256i *q) { |
| int i; |
| for (i = 0; i < size; i++) { |
| p[i] = _mm256_loadu_si256((__m256i *)(s - (i + 1) * pitch)); |
| q[i] = _mm256_loadu_si256((__m256i *)(s + i * pitch)); |
| } |
| } |
| |
| static INLINE void highbd_hev_mask(const __m256i *p, const __m256i *q, |
| const __m256i *t, __m256i *hev) { |
| const __m256i abs_p1p0 = _mm256_abs_epi16(_mm256_sub_epi16(p[1], p[0])); |
| const __m256i abs_q1q0 = _mm256_abs_epi16(_mm256_sub_epi16(q[1], q[0])); |
| __m256i h = _mm256_max_epi16(abs_p1p0, abs_q1q0); |
| h = _mm256_subs_epu16(h, *t); |
| |
| const __m256i ffff = _mm256_set1_epi16(0xFFFF); |
| const __m256i zero = _mm256_setzero_si256(); |
| *hev = _mm256_xor_si256(_mm256_cmpeq_epi16(h, zero), ffff); |
| } |
| |
| static INLINE void highbd_filter_mask(const __m256i *p, const __m256i *q, |
| const __m256i *l, const __m256i *bl, |
| __m256i *mask) { |
| __m256i abs_p0q0 = _mm256_abs_epi16(_mm256_sub_epi16(p[0], q[0])); |
| __m256i abs_p1q1 = _mm256_abs_epi16(_mm256_sub_epi16(p[1], q[1])); |
| abs_p0q0 = _mm256_adds_epu16(abs_p0q0, abs_p0q0); |
| abs_p1q1 = _mm256_srli_epi16(abs_p1q1, 1); |
| |
| const __m256i zero = _mm256_setzero_si256(); |
| const __m256i one = _mm256_set1_epi16(1); |
| const __m256i ffff = _mm256_set1_epi16(0xFFFF); |
| __m256i max = _mm256_subs_epu16(_mm256_adds_epu16(abs_p0q0, abs_p1q1), *bl); |
| max = _mm256_xor_si256(_mm256_cmpeq_epi16(max, zero), ffff); |
| max = _mm256_and_si256(max, _mm256_adds_epu16(*l, one)); |
| |
| int i; |
| for (i = 1; i < 4; ++i) { |
| max = _mm256_max_epi16(max, |
| _mm256_abs_epi16(_mm256_sub_epi16(p[i], p[i - 1]))); |
| max = _mm256_max_epi16(max, |
| _mm256_abs_epi16(_mm256_sub_epi16(q[i], q[i - 1]))); |
| } |
| max = _mm256_subs_epu16(max, *l); |
| *mask = _mm256_cmpeq_epi16(max, zero); // return ~mask |
| } |
| |
| static INLINE void flat_mask_internal(const __m256i *th, const __m256i *p, |
| const __m256i *q, int bd, int start, |
| int end, __m256i *flat) { |
| __m256i max = _mm256_setzero_si256(); |
| int i; |
| for (i = start; i < end; ++i) { |
| max = _mm256_max_epi16(max, _mm256_abs_epi16(_mm256_sub_epi16(p[i], p[0]))); |
| max = _mm256_max_epi16(max, _mm256_abs_epi16(_mm256_sub_epi16(q[i], q[0]))); |
| } |
| |
| __m256i ft; |
| if (bd == 8) |
| ft = _mm256_subs_epu16(max, *th); |
| else if (bd == 10) |
| ft = _mm256_subs_epu16(max, _mm256_slli_epi16(*th, 2)); |
| else // bd == 12 |
| ft = _mm256_subs_epu16(max, _mm256_slli_epi16(*th, 4)); |
| |
| const __m256i zero = _mm256_setzero_si256(); |
| *flat = _mm256_cmpeq_epi16(ft, zero); |
| } |
| |
| // Note: |
| // Access p[3-1], p[0], and q[3-1], q[0] |
| static INLINE void highbd_flat_mask4(const __m256i *th, const __m256i *p, |
| const __m256i *q, __m256i *flat, int bd) { |
| // check the distance 1,2,3 against 0 |
| flat_mask_internal(th, p, q, bd, 1, 4, flat); |
| } |
| |
| // Note: |
| // access p[7-4], p[0], and q[7-4], q[0] |
| static INLINE void highbd_flat_mask5(const __m256i *th, const __m256i *p, |
| const __m256i *q, __m256i *flat, int bd) { |
| flat_mask_internal(th, p, q, bd, 4, 8, flat); |
| } |
| |
| static INLINE void pixel_clamp(const __m256i *min, const __m256i *max, |
| __m256i *pixel) { |
| __m256i clamped, mask; |
| |
| mask = _mm256_cmpgt_epi16(*pixel, *max); |
| clamped = _mm256_andnot_si256(mask, *pixel); |
| mask = _mm256_and_si256(mask, *max); |
| clamped = _mm256_or_si256(mask, clamped); |
| |
| mask = _mm256_cmpgt_epi16(clamped, *min); |
| clamped = _mm256_and_si256(mask, clamped); |
| mask = _mm256_andnot_si256(mask, *min); |
| *pixel = _mm256_or_si256(clamped, mask); |
| } |
| |
| static INLINE void highbd_filter4(__m256i *p, __m256i *q, const __m256i *mask, |
| const __m256i *th, int bd, __m256i *ps, |
| __m256i *qs) { |
| __m256i t80; |
| if (bd == 8) |
| t80 = _mm256_set1_epi16(0x80); |
| else if (bd == 10) |
| t80 = _mm256_set1_epi16(0x200); |
| else // bd == 12 |
| t80 = _mm256_set1_epi16(0x800); |
| |
| __m256i ps0 = _mm256_subs_epi16(p[0], t80); |
| __m256i ps1 = _mm256_subs_epi16(p[1], t80); |
| __m256i qs0 = _mm256_subs_epi16(q[0], t80); |
| __m256i qs1 = _mm256_subs_epi16(q[1], t80); |
| |
| const __m256i one = _mm256_set1_epi16(1); |
| const __m256i pmax = _mm256_subs_epi16( |
| _mm256_subs_epi16(_mm256_slli_epi16(one, bd), one), t80); |
| const __m256i zero = _mm256_setzero_si256(); |
| const __m256i pmin = _mm256_subs_epi16(zero, t80); |
| |
| __m256i filter = _mm256_subs_epi16(ps1, qs1); |
| pixel_clamp(&pmin, &pmax, &filter); |
| |
| __m256i hev; |
| highbd_hev_mask(p, q, th, &hev); |
| filter = _mm256_and_si256(filter, hev); |
| |
| const __m256i x = _mm256_subs_epi16(qs0, ps0); |
| filter = _mm256_adds_epi16(filter, x); |
| filter = _mm256_adds_epi16(filter, x); |
| filter = _mm256_adds_epi16(filter, x); |
| pixel_clamp(&pmin, &pmax, &filter); |
| filter = _mm256_and_si256(filter, *mask); |
| |
| const __m256i t3 = _mm256_set1_epi16(3); |
| const __m256i t4 = _mm256_set1_epi16(4); |
| |
| __m256i filter1 = _mm256_adds_epi16(filter, t4); |
| __m256i filter2 = _mm256_adds_epi16(filter, t3); |
| pixel_clamp(&pmin, &pmax, &filter1); |
| pixel_clamp(&pmin, &pmax, &filter2); |
| filter1 = _mm256_srai_epi16(filter1, 3); |
| filter2 = _mm256_srai_epi16(filter2, 3); |
| |
| qs0 = _mm256_subs_epi16(qs0, filter1); |
| pixel_clamp(&pmin, &pmax, &qs0); |
| ps0 = _mm256_adds_epi16(ps0, filter2); |
| pixel_clamp(&pmin, &pmax, &ps0); |
| |
| qs[0] = _mm256_adds_epi16(qs0, t80); |
| ps[0] = _mm256_adds_epi16(ps0, t80); |
| |
| filter = _mm256_adds_epi16(filter1, one); |
| filter = _mm256_srai_epi16(filter, 1); |
| filter = _mm256_andnot_si256(hev, filter); |
| |
| qs1 = _mm256_subs_epi16(qs1, filter); |
| pixel_clamp(&pmin, &pmax, &qs1); |
| ps1 = _mm256_adds_epi16(ps1, filter); |
| pixel_clamp(&pmin, &pmax, &ps1); |
| |
| qs[1] = _mm256_adds_epi16(qs1, t80); |
| ps[1] = _mm256_adds_epi16(ps1, t80); |
| } |
| |
| void aom_highbd_lpf_horizontal_edge_16_avx2(uint16_t *s, int pitch, |
| const uint8_t *blt, |
| const uint8_t *lt, |
| const uint8_t *thr, int bd) { |
| __m256i blimit, limit, thresh; |
| get_limit(blt, lt, thr, bd, &blimit, &limit, &thresh); |
| |
| __m256i p[8], q[8]; |
| load_highbd_pixel(s, 8, pitch, p, q); |
| |
| __m256i mask; |
| highbd_filter_mask(p, q, &limit, &blimit, &mask); |
| |
| __m256i flat, flat2; |
| const __m256i one = _mm256_set1_epi16(1); |
| highbd_flat_mask4(&one, p, q, &flat, bd); |
| highbd_flat_mask5(&one, p, q, &flat2, bd); |
| |
| flat = _mm256_and_si256(flat, mask); |
| flat2 = _mm256_and_si256(flat2, flat); |
| |
| __m256i ps[2], qs[2]; |
| highbd_filter4(p, q, &mask, &thresh, bd, ps, qs); |
| |
| // flat and wide flat calculations |
| __m256i flat_p[3], flat_q[3]; |
| __m256i flat2_p[7], flat2_q[7]; |
| { |
| const __m256i eight = _mm256_set1_epi16(8); |
| const __m256i four = _mm256_set1_epi16(4); |
| |
| __m256i sum_p = _mm256_add_epi16(_mm256_add_epi16(p[6], p[5]), |
| _mm256_add_epi16(p[4], p[3])); |
| __m256i sum_q = _mm256_add_epi16(_mm256_add_epi16(q[6], q[5]), |
| _mm256_add_epi16(q[4], q[3])); |
| |
| __m256i sum_lp = _mm256_add_epi16(p[0], _mm256_add_epi16(p[2], p[1])); |
| sum_p = _mm256_add_epi16(sum_p, sum_lp); |
| |
| __m256i sum_lq = _mm256_add_epi16(q[0], _mm256_add_epi16(q[2], q[1])); |
| sum_q = _mm256_add_epi16(sum_q, sum_lq); |
| sum_p = _mm256_add_epi16(eight, _mm256_add_epi16(sum_p, sum_q)); |
| sum_lp = _mm256_add_epi16(four, _mm256_add_epi16(sum_lp, sum_lq)); |
| |
| flat2_p[0] = _mm256_srli_epi16( |
| _mm256_add_epi16(sum_p, _mm256_add_epi16(p[7], p[0])), 4); |
| flat2_q[0] = _mm256_srli_epi16( |
| _mm256_add_epi16(sum_p, _mm256_add_epi16(q[7], q[0])), 4); |
| flat_p[0] = _mm256_srli_epi16( |
| _mm256_add_epi16(sum_lp, _mm256_add_epi16(p[3], p[0])), 3); |
| flat_q[0] = _mm256_srli_epi16( |
| _mm256_add_epi16(sum_lp, _mm256_add_epi16(q[3], q[0])), 3); |
| |
| __m256i sum_p7 = _mm256_add_epi16(p[7], p[7]); |
| __m256i sum_q7 = _mm256_add_epi16(q[7], q[7]); |
| __m256i sum_p3 = _mm256_add_epi16(p[3], p[3]); |
| __m256i sum_q3 = _mm256_add_epi16(q[3], q[3]); |
| |
| sum_q = _mm256_sub_epi16(sum_p, p[6]); |
| sum_p = _mm256_sub_epi16(sum_p, q[6]); |
| flat2_p[1] = _mm256_srli_epi16( |
| _mm256_add_epi16(sum_p, _mm256_add_epi16(sum_p7, p[1])), 4); |
| flat2_q[1] = _mm256_srli_epi16( |
| _mm256_add_epi16(sum_q, _mm256_add_epi16(sum_q7, q[1])), 4); |
| |
| sum_lq = _mm256_sub_epi16(sum_lp, p[2]); |
| sum_lp = _mm256_sub_epi16(sum_lp, q[2]); |
| flat_p[1] = _mm256_srli_epi16( |
| _mm256_add_epi16(sum_lp, _mm256_add_epi16(sum_p3, p[1])), 3); |
| flat_q[1] = _mm256_srli_epi16( |
| _mm256_add_epi16(sum_lq, _mm256_add_epi16(sum_q3, q[1])), 3); |
| |
| sum_p7 = _mm256_add_epi16(sum_p7, p[7]); |
| sum_q7 = _mm256_add_epi16(sum_q7, q[7]); |
| sum_p3 = _mm256_add_epi16(sum_p3, p[3]); |
| sum_q3 = _mm256_add_epi16(sum_q3, q[3]); |
| |
| sum_p = _mm256_sub_epi16(sum_p, q[5]); |
| sum_q = _mm256_sub_epi16(sum_q, p[5]); |
| flat2_p[2] = _mm256_srli_epi16( |
| _mm256_add_epi16(sum_p, _mm256_add_epi16(sum_p7, p[2])), 4); |
| flat2_q[2] = _mm256_srli_epi16( |
| _mm256_add_epi16(sum_q, _mm256_add_epi16(sum_q7, q[2])), 4); |
| |
| sum_lp = _mm256_sub_epi16(sum_lp, q[1]); |
| sum_lq = _mm256_sub_epi16(sum_lq, p[1]); |
| flat_p[2] = _mm256_srli_epi16( |
| _mm256_add_epi16(sum_lp, _mm256_add_epi16(sum_p3, p[2])), 3); |
| flat_q[2] = _mm256_srli_epi16( |
| _mm256_add_epi16(sum_lq, _mm256_add_epi16(sum_q3, q[2])), 3); |
| |
| int i; |
| for (i = 3; i < 7; ++i) { |
| sum_p7 = _mm256_add_epi16(sum_p7, p[7]); |
| sum_q7 = _mm256_add_epi16(sum_q7, q[7]); |
| sum_p = _mm256_sub_epi16(sum_p, q[7 - i]); |
| sum_q = _mm256_sub_epi16(sum_q, p[7 - i]); |
| flat2_p[i] = _mm256_srli_epi16( |
| _mm256_add_epi16(sum_p, _mm256_add_epi16(sum_p7, p[i])), 4); |
| flat2_q[i] = _mm256_srli_epi16( |
| _mm256_add_epi16(sum_q, _mm256_add_epi16(sum_q7, q[i])), 4); |
| } |
| } |
| |
| // highbd_filter8 |
| p[2] = _mm256_andnot_si256(flat, p[2]); |
| // p2 remains unchanged if !(flat && mask) |
| flat_p[2] = _mm256_and_si256(flat, flat_p[2]); |
| // when (flat && mask) |
| p[2] = _mm256_or_si256(p[2], flat_p[2]); // full list of p2 values |
| q[2] = _mm256_andnot_si256(flat, q[2]); |
| flat_q[2] = _mm256_and_si256(flat, flat_q[2]); |
| q[2] = _mm256_or_si256(q[2], flat_q[2]); // full list of q2 values |
| |
| int i; |
| for (i = 1; i >= 0; i--) { |
| ps[i] = _mm256_andnot_si256(flat, ps[i]); |
| flat_p[i] = _mm256_and_si256(flat, flat_p[i]); |
| p[i] = _mm256_or_si256(ps[i], flat_p[i]); |
| qs[i] = _mm256_andnot_si256(flat, qs[i]); |
| flat_q[i] = _mm256_and_si256(flat, flat_q[i]); |
| q[i] = _mm256_or_si256(qs[i], flat_q[i]); |
| } |
| |
| // highbd_filter16 |
| |
| for (i = 6; i >= 0; i--) { |
| // p[i] remains unchanged if !(flat2 && flat && mask) |
| p[i] = _mm256_andnot_si256(flat2, p[i]); |
| flat2_p[i] = _mm256_and_si256(flat2, flat2_p[i]); |
| // get values for when (flat2 && flat && mask) |
| p[i] = _mm256_or_si256(p[i], flat2_p[i]); // full list of p values |
| |
| q[i] = _mm256_andnot_si256(flat2, q[i]); |
| flat2_q[i] = _mm256_and_si256(flat2, flat2_q[i]); |
| q[i] = _mm256_or_si256(q[i], flat2_q[i]); |
| _mm256_storeu_si256((__m256i *)(s - (i + 1) * pitch), p[i]); |
| _mm256_storeu_si256((__m256i *)(s + i * pitch), q[i]); |
| } |
| } |
| |
| static INLINE void highbd_transpose16x16(uint16_t *src, int src_p, |
| uint16_t *dst, int dst_p) { |
| __m256i x[16]; |
| int i; |
| for (i = 0; i < 16; ++i) { |
| x[i] = _mm256_loadu_si256((const __m256i *)src); |
| src += src_p; |
| } |
| mm256_transpose_16x16(x, x); |
| for (i = 0; i < 16; ++i) { |
| _mm256_storeu_si256((__m256i *)dst, x[i]); |
| dst += dst_p; |
| } |
| } |
| |
| void aom_highbd_lpf_vertical_16_dual_avx2(uint16_t *s, int p, |
| const uint8_t *blimit, |
| const uint8_t *limit, |
| const uint8_t *thresh, int bd) { |
| DECLARE_ALIGNED(16, uint16_t, t_dst[256]); |
| |
| // Transpose 16x16 |
| highbd_transpose16x16(s - 8, p, t_dst, 16); |
| |
| // Loop filtering |
| aom_highbd_lpf_horizontal_edge_16_avx2(t_dst + 8 * 16, 16, blimit, limit, |
| thresh, bd); |
| |
| // Transpose back |
| highbd_transpose16x16(t_dst, 16, s - 8, p); |
| } |
| |
| static INLINE void get_dual_limit(const uint8_t *b0, const uint8_t *l0, |
| const uint8_t *t0, const uint8_t *b1, |
| const uint8_t *l1, const uint8_t *t1, int bd, |
| __m256i *blt, __m256i *lt, __m256i *thr) { |
| const __m128i z128 = _mm_setzero_si128(); |
| const __m128i blimit0 = |
| _mm_unpacklo_epi8(_mm_load_si128((const __m128i *)b0), z128); |
| const __m128i limit0 = |
| _mm_unpacklo_epi8(_mm_load_si128((const __m128i *)l0), z128); |
| const __m128i thresh0 = |
| _mm_unpacklo_epi8(_mm_load_si128((const __m128i *)t0), z128); |
| const __m128i blimit1 = |
| _mm_unpacklo_epi8(_mm_load_si128((const __m128i *)b1), z128); |
| const __m128i limit1 = |
| _mm_unpacklo_epi8(_mm_load_si128((const __m128i *)l1), z128); |
| const __m128i thresh1 = |
| _mm_unpacklo_epi8(_mm_load_si128((const __m128i *)t1), z128); |
| |
| *blt = _mm256_inserti128_si256(_mm256_castsi128_si256(blimit0), blimit1, 1); |
| *lt = _mm256_inserti128_si256(_mm256_castsi128_si256(limit0), limit1, 1); |
| *thr = _mm256_inserti128_si256(_mm256_castsi128_si256(thresh0), thresh1, 1); |
| |
| int shift = bd - 8; |
| *blt = _mm256_slli_epi16(*blt, shift); |
| *lt = _mm256_slli_epi16(*lt, shift); |
| *thr = _mm256_slli_epi16(*thr, shift); |
| } |
| |
| void aom_highbd_lpf_horizontal_4_dual_avx2( |
| uint16_t *s, int p, const uint8_t *_blimit0, const uint8_t *_limit0, |
| const uint8_t *_thresh0, const uint8_t *_blimit1, const uint8_t *_limit1, |
| const uint8_t *_thresh1, int bd) { |
| __m256i p3 = _mm256_loadu_si256((__m256i *)(s - 4 * p)); |
| __m256i p2 = _mm256_loadu_si256((__m256i *)(s - 3 * p)); |
| __m256i p1 = _mm256_loadu_si256((__m256i *)(s - 2 * p)); |
| __m256i p0 = _mm256_loadu_si256((__m256i *)(s - 1 * p)); |
| __m256i q0 = _mm256_loadu_si256((__m256i *)(s - 0 * p)); |
| __m256i q1 = _mm256_loadu_si256((__m256i *)(s + 1 * p)); |
| __m256i q2 = _mm256_loadu_si256((__m256i *)(s + 2 * p)); |
| __m256i q3 = _mm256_loadu_si256((__m256i *)(s + 3 * p)); |
| |
| const __m256i abs_p1p0 = _mm256_abs_epi16(_mm256_sub_epi16(p1, p0)); |
| const __m256i abs_q1q0 = _mm256_abs_epi16(_mm256_sub_epi16(q1, q0)); |
| |
| __m256i abs_p0q0 = _mm256_abs_epi16(_mm256_sub_epi16(p0, q0)); |
| __m256i abs_p1q1 = _mm256_abs_epi16(_mm256_sub_epi16(p1, q1)); |
| |
| __m256i blimit, limit, thresh; |
| get_dual_limit(_blimit0, _limit0, _thresh0, _blimit1, _limit1, _thresh1, bd, |
| &blimit, &limit, &thresh); |
| |
| __m256i t80, tff80, tffe0, t1f, t7f; |
| if (bd == 8) { |
| t80 = _mm256_set1_epi16(0x80); |
| tff80 = _mm256_set1_epi16(0xff80); |
| tffe0 = _mm256_set1_epi16(0xffe0); |
| t1f = _mm256_srli_epi16(_mm256_set1_epi16(0x1fff), 8); |
| t7f = _mm256_srli_epi16(_mm256_set1_epi16(0x7fff), 8); |
| } else if (bd == 10) { |
| t80 = _mm256_slli_epi16(_mm256_set1_epi16(0x80), 2); |
| tff80 = _mm256_slli_epi16(_mm256_set1_epi16(0xff80), 2); |
| tffe0 = _mm256_slli_epi16(_mm256_set1_epi16(0xffe0), 2); |
| t1f = _mm256_srli_epi16(_mm256_set1_epi16(0x1fff), 6); |
| t7f = _mm256_srli_epi16(_mm256_set1_epi16(0x7fff), 6); |
| } else { // bd == 12 |
| t80 = _mm256_slli_epi16(_mm256_set1_epi16(0x80), 4); |
| tff80 = _mm256_slli_epi16(_mm256_set1_epi16(0xff80), 4); |
| tffe0 = _mm256_slli_epi16(_mm256_set1_epi16(0xffe0), 4); |
| t1f = _mm256_srli_epi16(_mm256_set1_epi16(0x1fff), 4); |
| t7f = _mm256_srli_epi16(_mm256_set1_epi16(0x7fff), 4); |
| } |
| |
| __m256i ps1 = |
| _mm256_subs_epi16(_mm256_loadu_si256((__m256i *)(s - 2 * p)), t80); |
| __m256i ps0 = |
| _mm256_subs_epi16(_mm256_loadu_si256((__m256i *)(s - 1 * p)), t80); |
| __m256i qs0 = |
| _mm256_subs_epi16(_mm256_loadu_si256((__m256i *)(s + 0 * p)), t80); |
| __m256i qs1 = |
| _mm256_subs_epi16(_mm256_loadu_si256((__m256i *)(s + 1 * p)), t80); |
| |
| // filter_mask and hev_mask |
| const __m256i zero = _mm256_setzero_si256(); |
| __m256i flat = _mm256_max_epi16(abs_p1p0, abs_q1q0); |
| __m256i hev = _mm256_subs_epu16(flat, thresh); |
| const __m256i ffff = _mm256_set1_epi16(0xFFFF); |
| hev = _mm256_xor_si256(_mm256_cmpeq_epi16(hev, zero), ffff); |
| |
| abs_p0q0 = _mm256_adds_epu16(abs_p0q0, abs_p0q0); |
| abs_p1q1 = _mm256_srli_epi16(abs_p1q1, 1); |
| __m256i mask = |
| _mm256_subs_epu16(_mm256_adds_epu16(abs_p0q0, abs_p1q1), blimit); |
| mask = _mm256_xor_si256(_mm256_cmpeq_epi16(mask, zero), ffff); |
| // mask |= (abs(p0 - q0) * 2 + abs(p1 - q1) / 2 > blimit) * -1; |
| // So taking maximums continues to work: |
| const __m256i one = _mm256_set1_epi16(1); |
| mask = _mm256_and_si256(mask, _mm256_adds_epu16(limit, one)); |
| mask = _mm256_max_epi16(flat, mask); |
| // mask |= (abs(p1 - p0) > limit) * -1; |
| // mask |= (abs(q1 - q0) > limit) * -1; |
| __m256i work = _mm256_max_epi16( |
| _mm256_or_si256(_mm256_subs_epu16(p2, p1), _mm256_subs_epu16(p1, p2)), |
| _mm256_or_si256(_mm256_subs_epu16(p3, p2), _mm256_subs_epu16(p2, p3))); |
| mask = _mm256_max_epi16(work, mask); |
| work = _mm256_max_epi16( |
| _mm256_or_si256(_mm256_subs_epu16(q2, q1), _mm256_subs_epu16(q1, q2)), |
| _mm256_or_si256(_mm256_subs_epu16(q3, q2), _mm256_subs_epu16(q2, q3))); |
| mask = _mm256_max_epi16(work, mask); |
| mask = _mm256_subs_epu16(mask, limit); |
| mask = _mm256_cmpeq_epi16(mask, zero); |
| |
| // filter4 |
| const __m256i pmax = _mm256_subs_epi16( |
| _mm256_subs_epi16(_mm256_slli_epi16(one, bd), one), t80); |
| const __m256i pmin = _mm256_subs_epi16(zero, t80); |
| |
| __m256i filt = _mm256_subs_epi16(ps1, qs1); |
| pixel_clamp(&pmin, &pmax, &filt); |
| filt = _mm256_and_si256(filt, hev); |
| __m256i work_a = _mm256_subs_epi16(qs0, ps0); |
| filt = _mm256_adds_epi16(filt, work_a); |
| filt = _mm256_adds_epi16(filt, work_a); |
| filt = _mm256_adds_epi16(filt, work_a); |
| pixel_clamp(&pmin, &pmax, &filt); |
| |
| // (aom_filter + 3 * (qs0 - ps0)) & mask |
| filt = _mm256_and_si256(filt, mask); |
| |
| const __m256i t4 = _mm256_set1_epi16(4); |
| const __m256i t3 = _mm256_set1_epi16(3); |
| |
| __m256i filter1 = _mm256_adds_epi16(filt, t4); |
| pixel_clamp(&pmin, &pmax, &filter1); |
| __m256i filter2 = _mm256_adds_epi16(filt, t3); |
| pixel_clamp(&pmin, &pmax, &filter2); |
| |
| // Filter1 >> 3 |
| work_a = _mm256_cmpgt_epi16(zero, filter1); // get the values that are <0 |
| filter1 = _mm256_srli_epi16(filter1, 3); |
| work_a = _mm256_and_si256(work_a, tffe0); // sign bits for the values < 0 |
| filter1 = _mm256_and_si256(filter1, t1f); // clamp the range |
| filter1 = _mm256_or_si256(filter1, work_a); // reinsert the sign bits |
| |
| // Filter2 >> 3 |
| work_a = _mm256_cmpgt_epi16(zero, filter2); |
| filter2 = _mm256_srli_epi16(filter2, 3); |
| work_a = _mm256_and_si256(work_a, tffe0); |
| filter2 = _mm256_and_si256(filter2, t1f); |
| filter2 = _mm256_or_si256(filter2, work_a); |
| |
| // filt >> 1 |
| // equivalent to shifting 0x1f left by bitdepth - 8 |
| // and setting new bits to 1 |
| filt = _mm256_adds_epi16(filter1, one); |
| work_a = _mm256_cmpgt_epi16(zero, filt); |
| filt = _mm256_srli_epi16(filt, 1); |
| work_a = _mm256_and_si256(work_a, tff80); |
| filt = _mm256_and_si256(filt, t7f); |
| filt = _mm256_or_si256(filt, work_a); |
| |
| filt = _mm256_andnot_si256(hev, filt); |
| |
| filter1 = _mm256_subs_epi16(qs0, filter1); |
| pixel_clamp(&pmin, &pmax, &filter1); |
| q0 = _mm256_adds_epi16(filter1, t80); |
| |
| filter1 = _mm256_subs_epi16(qs1, filt); |
| pixel_clamp(&pmin, &pmax, &filter1); |
| q1 = _mm256_adds_epi16(filter1, t80); |
| |
| filter2 = _mm256_adds_epi16(ps0, filter2); |
| pixel_clamp(&pmin, &pmax, &filter2); |
| p0 = _mm256_adds_epi16(filter2, t80); |
| |
| filter2 = _mm256_adds_epi16(ps1, filt); |
| pixel_clamp(&pmin, &pmax, &filter2); |
| p1 = _mm256_adds_epi16(filter2, t80); |
| |
| _mm256_storeu_si256((__m256i *)(s - 2 * p), p1); |
| _mm256_storeu_si256((__m256i *)(s - 1 * p), p0); |
| _mm256_storeu_si256((__m256i *)(s + 0 * p), q0); |
| _mm256_storeu_si256((__m256i *)(s + 1 * p), q1); |
| } |
| |
| void aom_highbd_lpf_horizontal_8_dual_avx2( |
| uint16_t *s, int p, const uint8_t *_blimit0, const uint8_t *_limit0, |
| const uint8_t *_thresh0, const uint8_t *_blimit1, const uint8_t *_limit1, |
| const uint8_t *_thresh1, int bd) { |
| DECLARE_ALIGNED(16, uint16_t, flat_op2[16]); |
| DECLARE_ALIGNED(16, uint16_t, flat_op1[16]); |
| DECLARE_ALIGNED(16, uint16_t, flat_op0[16]); |
| DECLARE_ALIGNED(16, uint16_t, flat_oq2[16]); |
| DECLARE_ALIGNED(16, uint16_t, flat_oq1[16]); |
| DECLARE_ALIGNED(16, uint16_t, flat_oq0[16]); |
| |
| __m256i p3 = _mm256_loadu_si256((__m256i *)(s - 4 * p)); |
| __m256i q3 = _mm256_loadu_si256((__m256i *)(s + 3 * p)); |
| __m256i p2 = _mm256_loadu_si256((__m256i *)(s - 3 * p)); |
| __m256i q2 = _mm256_loadu_si256((__m256i *)(s + 2 * p)); |
| __m256i p1 = _mm256_loadu_si256((__m256i *)(s - 2 * p)); |
| __m256i q1 = _mm256_loadu_si256((__m256i *)(s + 1 * p)); |
| __m256i p0 = _mm256_loadu_si256((__m256i *)(s - 1 * p)); |
| __m256i q0 = _mm256_loadu_si256((__m256i *)(s + 0 * p)); |
| |
| __m256i blimit, limit, thresh; |
| get_dual_limit(_blimit0, _limit0, _thresh0, _blimit1, _limit1, _thresh1, bd, |
| &blimit, &limit, &thresh); |
| |
| __m256i t80; |
| if (bd == 8) { |
| t80 = _mm256_set1_epi16(0x80); |
| } else if (bd == 10) { |
| t80 = _mm256_set1_epi16(0x200); |
| } else { // bd == 12 |
| t80 = _mm256_set1_epi16(0x800); |
| } |
| |
| __m256i ps1, ps0, qs0, qs1; |
| ps1 = _mm256_subs_epi16(p1, t80); |
| ps0 = _mm256_subs_epi16(p0, t80); |
| qs0 = _mm256_subs_epi16(q0, t80); |
| qs1 = _mm256_subs_epi16(q1, t80); |
| |
| // filter_mask and hev_mask |
| __m256i abs_p1q1, abs_p0q0, abs_q1q0, abs_p1p0, work; |
| abs_p1p0 = _mm256_abs_epi16(_mm256_sub_epi16(p1, p0)); |
| abs_q1q0 = _mm256_abs_epi16(_mm256_sub_epi16(q1, q0)); |
| |
| abs_p0q0 = _mm256_abs_epi16(_mm256_sub_epi16(p0, q0)); |
| abs_p1q1 = _mm256_abs_epi16(_mm256_sub_epi16(p1, q1)); |
| __m256i flat = _mm256_max_epi16(abs_p1p0, abs_q1q0); |
| __m256i hev = _mm256_subs_epu16(flat, thresh); |
| const __m256i zero = _mm256_set1_epi16(0); |
| const __m256i ffff = _mm256_set1_epi16(0xFFFF); |
| hev = _mm256_xor_si256(_mm256_cmpeq_epi16(hev, zero), ffff); |
| |
| abs_p0q0 = _mm256_adds_epu16(abs_p0q0, abs_p0q0); |
| abs_p1q1 = _mm256_srli_epi16(abs_p1q1, 1); |
| __m256i mask = |
| _mm256_subs_epu16(_mm256_adds_epu16(abs_p0q0, abs_p1q1), blimit); |
| mask = _mm256_xor_si256(_mm256_cmpeq_epi16(mask, zero), ffff); |
| // mask |= (abs(p0 - q0) * 2 + abs(p1 - q1) / 2 > blimit) * -1; |
| // So taking maximums continues to work: |
| |
| const __m256i one = _mm256_set1_epi16(1); |
| mask = _mm256_and_si256(mask, _mm256_adds_epu16(limit, one)); |
| mask = _mm256_max_epi16(abs_p1p0, mask); |
| // mask |= (abs(p1 - p0) > limit) * -1; |
| mask = _mm256_max_epi16(abs_q1q0, mask); |
| // mask |= (abs(q1 - q0) > limit) * -1; |
| |
| work = _mm256_max_epi16(_mm256_abs_epi16(_mm256_sub_epi16(p2, p1)), |
| _mm256_abs_epi16(_mm256_sub_epi16(q2, q1))); |
| mask = _mm256_max_epi16(work, mask); |
| work = _mm256_max_epi16(_mm256_abs_epi16(_mm256_sub_epi16(p3, p2)), |
| _mm256_abs_epi16(_mm256_sub_epi16(q3, q2))); |
| mask = _mm256_max_epi16(work, mask); |
| mask = _mm256_subs_epu16(mask, limit); |
| mask = _mm256_cmpeq_epi16(mask, zero); |
| |
| // flat_mask4 |
| flat = _mm256_max_epi16(_mm256_abs_epi16(_mm256_sub_epi16(p2, p0)), |
| _mm256_abs_epi16(_mm256_sub_epi16(q2, q0))); |
| work = _mm256_max_epi16(_mm256_abs_epi16(_mm256_sub_epi16(p3, p0)), |
| _mm256_abs_epi16(_mm256_sub_epi16(q3, q0))); |
| flat = _mm256_max_epi16(work, flat); |
| flat = _mm256_max_epi16(abs_p1p0, flat); |
| flat = _mm256_max_epi16(abs_q1q0, flat); |
| |
| if (bd == 8) |
| flat = _mm256_subs_epu16(flat, one); |
| else if (bd == 10) |
| flat = _mm256_subs_epu16(flat, _mm256_slli_epi16(one, 2)); |
| else // bd == 12 |
| flat = _mm256_subs_epu16(flat, _mm256_slli_epi16(one, 4)); |
| |
| flat = _mm256_cmpeq_epi16(flat, zero); |
| flat = _mm256_and_si256(flat, mask); // flat & mask |
| |
| // Added before shift for rounding part of ROUND_POWER_OF_TWO |
| __m256i workp_a, workp_b, workp_shft; |
| workp_a = |
| _mm256_add_epi16(_mm256_add_epi16(p3, p3), _mm256_add_epi16(p2, p1)); |
| const __m256i four = _mm256_set1_epi16(4); |
| workp_a = _mm256_add_epi16(_mm256_add_epi16(workp_a, four), p0); |
| workp_b = _mm256_add_epi16(_mm256_add_epi16(q0, p2), p3); |
| workp_shft = _mm256_srli_epi16(_mm256_add_epi16(workp_a, workp_b), 3); |
| _mm256_storeu_si256((__m256i *)&flat_op2[0], workp_shft); |
| |
| workp_b = _mm256_add_epi16(_mm256_add_epi16(q0, q1), p1); |
| workp_shft = _mm256_srli_epi16(_mm256_add_epi16(workp_a, workp_b), 3); |
| _mm256_storeu_si256((__m256i *)&flat_op1[0], workp_shft); |
| |
| workp_a = _mm256_add_epi16(_mm256_sub_epi16(workp_a, p3), q2); |
| workp_b = _mm256_add_epi16(_mm256_sub_epi16(workp_b, p1), p0); |
| workp_shft = _mm256_srli_epi16(_mm256_add_epi16(workp_a, workp_b), 3); |
| _mm256_storeu_si256((__m256i *)&flat_op0[0], workp_shft); |
| |
| workp_a = _mm256_add_epi16(_mm256_sub_epi16(workp_a, p3), q3); |
| workp_b = _mm256_add_epi16(_mm256_sub_epi16(workp_b, p0), q0); |
| workp_shft = _mm256_srli_epi16(_mm256_add_epi16(workp_a, workp_b), 3); |
| _mm256_storeu_si256((__m256i *)&flat_oq0[0], workp_shft); |
| |
| workp_a = _mm256_add_epi16(_mm256_sub_epi16(workp_a, p2), q3); |
| workp_b = _mm256_add_epi16(_mm256_sub_epi16(workp_b, q0), q1); |
| workp_shft = _mm256_srli_epi16(_mm256_add_epi16(workp_a, workp_b), 3); |
| _mm256_storeu_si256((__m256i *)&flat_oq1[0], workp_shft); |
| |
| workp_a = _mm256_add_epi16(_mm256_sub_epi16(workp_a, p1), q3); |
| workp_b = _mm256_add_epi16(_mm256_sub_epi16(workp_b, q1), q2); |
| workp_shft = _mm256_srli_epi16(_mm256_add_epi16(workp_a, workp_b), 3); |
| _mm256_storeu_si256((__m256i *)&flat_oq2[0], workp_shft); |
| |
| // lp filter |
| const __m256i pmax = _mm256_subs_epi16( |
| _mm256_subs_epi16(_mm256_slli_epi16(one, bd), one), t80); |
| const __m256i pmin = _mm256_subs_epi16(zero, t80); |
| |
| __m256i filt, filter1, filter2, work_a; |
| filt = _mm256_subs_epi16(ps1, qs1); |
| pixel_clamp(&pmin, &pmax, &filt); |
| filt = _mm256_and_si256(filt, hev); |
| work_a = _mm256_subs_epi16(qs0, ps0); |
| filt = _mm256_adds_epi16(filt, work_a); |
| filt = _mm256_adds_epi16(filt, work_a); |
| filt = _mm256_adds_epi16(filt, work_a); |
| // (aom_filter + 3 * (qs0 - ps0)) & mask |
| pixel_clamp(&pmin, &pmax, &filt); |
| filt = _mm256_and_si256(filt, mask); |
| |
| const __m256i t4 = _mm256_set1_epi16(4); |
| const __m256i t3 = _mm256_set1_epi16(3); |
| |
| filter1 = _mm256_adds_epi16(filt, t4); |
| filter2 = _mm256_adds_epi16(filt, t3); |
| |
| // Filter1 >> 3 |
| pixel_clamp(&pmin, &pmax, &filter1); |
| filter1 = _mm256_srai_epi16(filter1, 3); |
| |
| // Filter2 >> 3 |
| pixel_clamp(&pmin, &pmax, &filter2); |
| filter2 = _mm256_srai_epi16(filter2, 3); |
| |
| // filt >> 1 |
| filt = _mm256_adds_epi16(filter1, one); |
| filt = _mm256_srai_epi16(filt, 1); |
| // filter = ROUND_POWER_OF_TWO(filter1, 1) & ~hev; |
| filt = _mm256_andnot_si256(hev, filt); |
| |
| work_a = _mm256_subs_epi16(qs0, filter1); |
| pixel_clamp(&pmin, &pmax, &work_a); |
| work_a = _mm256_adds_epi16(work_a, t80); |
| q0 = _mm256_loadu_si256((__m256i *)flat_oq0); |
| work_a = _mm256_andnot_si256(flat, work_a); |
| q0 = _mm256_and_si256(flat, q0); |
| q0 = _mm256_or_si256(work_a, q0); |
| |
| work_a = _mm256_subs_epi16(qs1, filt); |
| pixel_clamp(&pmin, &pmax, &work_a); |
| work_a = _mm256_adds_epi16(work_a, t80); |
| q1 = _mm256_loadu_si256((__m256i *)flat_oq1); |
| work_a = _mm256_andnot_si256(flat, work_a); |
| q1 = _mm256_and_si256(flat, q1); |
| q1 = _mm256_or_si256(work_a, q1); |
| |
| work_a = _mm256_loadu_si256((__m256i *)(s + 2 * p)); |
| q2 = _mm256_loadu_si256((__m256i *)flat_oq2); |
| work_a = _mm256_andnot_si256(flat, work_a); |
| q2 = _mm256_and_si256(flat, q2); |
| q2 = _mm256_or_si256(work_a, q2); |
| |
| work_a = _mm256_adds_epi16(ps0, filter2); |
| pixel_clamp(&pmin, &pmax, &work_a); |
| work_a = _mm256_adds_epi16(work_a, t80); |
| p0 = _mm256_loadu_si256((__m256i *)flat_op0); |
| work_a = _mm256_andnot_si256(flat, work_a); |
| p0 = _mm256_and_si256(flat, p0); |
| p0 = _mm256_or_si256(work_a, p0); |
| |
| work_a = _mm256_adds_epi16(ps1, filt); |
| pixel_clamp(&pmin, &pmax, &work_a); |
| work_a = _mm256_adds_epi16(work_a, t80); |
| p1 = _mm256_loadu_si256((__m256i *)flat_op1); |
| work_a = _mm256_andnot_si256(flat, work_a); |
| p1 = _mm256_and_si256(flat, p1); |
| p1 = _mm256_or_si256(work_a, p1); |
| |
| work_a = _mm256_loadu_si256((__m256i *)(s - 3 * p)); |
| p2 = _mm256_loadu_si256((__m256i *)flat_op2); |
| work_a = _mm256_andnot_si256(flat, work_a); |
| p2 = _mm256_and_si256(flat, p2); |
| p2 = _mm256_or_si256(work_a, p2); |
| |
| _mm256_storeu_si256((__m256i *)(s - 3 * p), p2); |
| _mm256_storeu_si256((__m256i *)(s - 2 * p), p1); |
| _mm256_storeu_si256((__m256i *)(s - 1 * p), p0); |
| _mm256_storeu_si256((__m256i *)(s + 0 * p), q0); |
| _mm256_storeu_si256((__m256i *)(s + 1 * p), q1); |
| _mm256_storeu_si256((__m256i *)(s + 2 * p), q2); |
| } |
| |
| void aom_highbd_lpf_vertical_4_dual_avx2( |
| uint16_t *s, int p, const uint8_t *blimit0, const uint8_t *limit0, |
| const uint8_t *thresh0, const uint8_t *blimit1, const uint8_t *limit1, |
| const uint8_t *thresh1, int bd) { |
| DECLARE_ALIGNED(16, uint16_t, t_dst[16 * 8]); |
| uint16_t *src[2]; |
| uint16_t *dst[2]; |
| |
| // Transpose 8x16 |
| highbd_transpose8x16(s - 4, s - 4 + p * 8, p, t_dst, 16); |
| |
| // Loop filtering |
| aom_highbd_lpf_horizontal_4_dual_avx2(t_dst + 4 * 16, 16, blimit0, limit0, |
| thresh0, blimit1, limit1, thresh1, bd); |
| src[0] = t_dst; |
| src[1] = t_dst + 8; |
| dst[0] = s - 4; |
| dst[1] = s - 4 + p * 8; |
| |
| // Transpose back |
| highbd_transpose(src, 16, dst, p, 2); |
| } |
| |
| void aom_highbd_lpf_vertical_8_dual_avx2( |
| uint16_t *s, int p, const uint8_t *blimit0, const uint8_t *limit0, |
| const uint8_t *thresh0, const uint8_t *blimit1, const uint8_t *limit1, |
| const uint8_t *thresh1, int bd) { |
| DECLARE_ALIGNED(16, uint16_t, t_dst[16 * 8]); |
| uint16_t *src[2]; |
| uint16_t *dst[2]; |
| |
| // Transpose 8x16 |
| highbd_transpose8x16(s - 4, s - 4 + p * 8, p, t_dst, 16); |
| |
| // Loop filtering |
| aom_highbd_lpf_horizontal_8_dual_avx2(t_dst + 4 * 16, 16, blimit0, limit0, |
| thresh0, blimit1, limit1, thresh1, bd); |
| src[0] = t_dst; |
| src[1] = t_dst + 8; |
| |
| dst[0] = s - 4; |
| dst[1] = s - 4 + p * 8; |
| |
| // Transpose back |
| highbd_transpose(src, 16, dst, p, 2); |
| } |
