| /* |
| * 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 <assert.h> |
| #include <immintrin.h> |
| |
| #include "config/aom_config.h" |
| #include "config/av1_rtcd.h" |
| |
| #include "av1/common/av1_inv_txfm1d_cfg.h" |
| #include "av1/common/idct.h" |
| #include "av1/common/x86/av1_inv_txfm_ssse3.h" |
| #include "av1/common/x86/highbd_txfm_utility_sse4.h" |
| #include "aom_dsp/x86/txfm_common_avx2.h" |
| |
| // Note: |
| // Total 32x4 registers to represent 32x32 block coefficients. |
| // For high bit depth, each coefficient is 4-byte. |
| // Each __m256i register holds 8 coefficients. |
| // So each "row" we needs 4 register. Totally 32 rows |
| // Register layout: |
| // v0, v1, v2, v3, |
| // v4, v5, v6, v7, |
| // ... ... |
| // v124, v125, v126, v127 |
| |
| static INLINE __m256i highbd_clamp_epi16_avx2(__m256i u, int bd) { |
| const __m256i zero = _mm256_setzero_si256(); |
| const __m256i one = _mm256_set1_epi16(1); |
| const __m256i max = _mm256_sub_epi16(_mm256_slli_epi16(one, bd), one); |
| __m256i clamped, mask; |
| |
| mask = _mm256_cmpgt_epi16(u, max); |
| clamped = _mm256_andnot_si256(mask, u); |
| mask = _mm256_and_si256(mask, max); |
| clamped = _mm256_or_si256(mask, clamped); |
| mask = _mm256_cmpgt_epi16(clamped, zero); |
| clamped = _mm256_and_si256(clamped, mask); |
| |
| return clamped; |
| } |
| |
| static INLINE void round_shift_4x4_avx2(__m256i *in, int shift) { |
| if (shift != 0) { |
| __m256i rnding = _mm256_set1_epi32(1 << (shift - 1)); |
| in[0] = _mm256_add_epi32(in[0], rnding); |
| in[1] = _mm256_add_epi32(in[1], rnding); |
| in[2] = _mm256_add_epi32(in[2], rnding); |
| in[3] = _mm256_add_epi32(in[3], rnding); |
| |
| in[0] = _mm256_srai_epi32(in[0], shift); |
| in[1] = _mm256_srai_epi32(in[1], shift); |
| in[2] = _mm256_srai_epi32(in[2], shift); |
| in[3] = _mm256_srai_epi32(in[3], shift); |
| } |
| } |
| |
| static INLINE void round_shift_8x8_avx2(__m256i *in, int shift) { |
| round_shift_4x4_avx2(in, shift); |
| round_shift_4x4_avx2(in + 4, shift); |
| round_shift_4x4_avx2(in + 8, shift); |
| round_shift_4x4_avx2(in + 12, shift); |
| } |
| |
| static void highbd_clamp_epi32_avx2(__m256i *in, __m256i *out, |
| const __m256i *clamp_lo, |
| const __m256i *clamp_hi, int size) { |
| __m256i a0, a1; |
| for (int i = 0; i < size; i += 4) { |
| a0 = _mm256_max_epi32(in[i], *clamp_lo); |
| out[i] = _mm256_min_epi32(a0, *clamp_hi); |
| |
| a1 = _mm256_max_epi32(in[i + 1], *clamp_lo); |
| out[i + 1] = _mm256_min_epi32(a1, *clamp_hi); |
| |
| a0 = _mm256_max_epi32(in[i + 2], *clamp_lo); |
| out[i + 2] = _mm256_min_epi32(a0, *clamp_hi); |
| |
| a1 = _mm256_max_epi32(in[i + 3], *clamp_lo); |
| out[i + 3] = _mm256_min_epi32(a1, *clamp_hi); |
| } |
| } |
| |
| static INLINE __m256i highbd_get_recon_16x8_avx2(const __m256i pred, |
| __m256i res0, __m256i res1, |
| const int bd) { |
| __m256i x0 = _mm256_cvtepi16_epi32(_mm256_castsi256_si128(pred)); |
| __m256i x1 = _mm256_cvtepi16_epi32(_mm256_extractf128_si256(pred, 1)); |
| |
| x0 = _mm256_add_epi32(res0, x0); |
| x1 = _mm256_add_epi32(res1, x1); |
| x0 = _mm256_packus_epi32(x0, x1); |
| x0 = _mm256_permute4x64_epi64(x0, 0xd8); |
| x0 = highbd_clamp_epi16_avx2(x0, bd); |
| return x0; |
| } |
| |
| static INLINE void highbd_write_buffer_16xn_avx2(__m256i *in, uint16_t *output, |
| int stride, int flipud, |
| int height, const int bd) { |
| int j = flipud ? (height - 1) : 0; |
| const int step = flipud ? -1 : 1; |
| for (int i = 0; i < height; ++i, j += step) { |
| __m256i v = _mm256_loadu_si256((__m256i const *)(output + i * stride)); |
| __m256i u = highbd_get_recon_16x8_avx2(v, in[j], in[j + height], bd); |
| |
| _mm256_storeu_si256((__m256i *)(output + i * stride), u); |
| } |
| } |
| static INLINE __m256i highbd_get_recon_8x8_avx2(const __m256i pred, __m256i res, |
| const int bd) { |
| __m256i x0 = pred; |
| x0 = _mm256_add_epi32(res, x0); |
| x0 = _mm256_packus_epi32(x0, x0); |
| x0 = _mm256_permute4x64_epi64(x0, 0xd8); |
| x0 = highbd_clamp_epi16_avx2(x0, bd); |
| return x0; |
| } |
| |
| static INLINE void highbd_write_buffer_8xn_avx2(__m256i *in, uint16_t *output, |
| int stride, int flipud, |
| int height, const int bd) { |
| int j = flipud ? (height - 1) : 0; |
| __m128i temp; |
| const int step = flipud ? -1 : 1; |
| for (int i = 0; i < height; ++i, j += step) { |
| temp = _mm_loadu_si128((__m128i const *)(output + i * stride)); |
| __m256i v = _mm256_cvtepi16_epi32(temp); |
| __m256i u = highbd_get_recon_8x8_avx2(v, in[j], bd); |
| __m128i u1 = _mm256_castsi256_si128(u); |
| _mm_storeu_si128((__m128i *)(output + i * stride), u1); |
| } |
| } |
| static void neg_shift_avx2(const __m256i in0, const __m256i in1, __m256i *out0, |
| __m256i *out1, const __m256i *clamp_lo, |
| const __m256i *clamp_hi, int shift) { |
| __m256i offset = _mm256_set1_epi32((1 << shift) >> 1); |
| __m256i a0 = _mm256_add_epi32(offset, in0); |
| __m256i a1 = _mm256_sub_epi32(offset, in1); |
| |
| a0 = _mm256_sra_epi32(a0, _mm_cvtsi32_si128(shift)); |
| a1 = _mm256_sra_epi32(a1, _mm_cvtsi32_si128(shift)); |
| |
| a0 = _mm256_max_epi32(a0, *clamp_lo); |
| a0 = _mm256_min_epi32(a0, *clamp_hi); |
| a1 = _mm256_max_epi32(a1, *clamp_lo); |
| a1 = _mm256_min_epi32(a1, *clamp_hi); |
| |
| *out0 = a0; |
| *out1 = a1; |
| } |
| |
| static void transpose_8x8_avx2(const __m256i *in, __m256i *out) { |
| __m256i u0, u1, u2, u3, u4, u5, u6, u7; |
| __m256i x0, x1; |
| |
| u0 = _mm256_unpacklo_epi32(in[0], in[1]); |
| u1 = _mm256_unpackhi_epi32(in[0], in[1]); |
| |
| u2 = _mm256_unpacklo_epi32(in[2], in[3]); |
| u3 = _mm256_unpackhi_epi32(in[2], in[3]); |
| |
| u4 = _mm256_unpacklo_epi32(in[4], in[5]); |
| u5 = _mm256_unpackhi_epi32(in[4], in[5]); |
| |
| u6 = _mm256_unpacklo_epi32(in[6], in[7]); |
| u7 = _mm256_unpackhi_epi32(in[6], in[7]); |
| |
| x0 = _mm256_unpacklo_epi64(u0, u2); |
| x1 = _mm256_unpacklo_epi64(u4, u6); |
| out[0] = _mm256_permute2f128_si256(x0, x1, 0x20); |
| out[4] = _mm256_permute2f128_si256(x0, x1, 0x31); |
| |
| x0 = _mm256_unpackhi_epi64(u0, u2); |
| x1 = _mm256_unpackhi_epi64(u4, u6); |
| out[1] = _mm256_permute2f128_si256(x0, x1, 0x20); |
| out[5] = _mm256_permute2f128_si256(x0, x1, 0x31); |
| |
| x0 = _mm256_unpacklo_epi64(u1, u3); |
| x1 = _mm256_unpacklo_epi64(u5, u7); |
| out[2] = _mm256_permute2f128_si256(x0, x1, 0x20); |
| out[6] = _mm256_permute2f128_si256(x0, x1, 0x31); |
| |
| x0 = _mm256_unpackhi_epi64(u1, u3); |
| x1 = _mm256_unpackhi_epi64(u5, u7); |
| out[3] = _mm256_permute2f128_si256(x0, x1, 0x20); |
| out[7] = _mm256_permute2f128_si256(x0, x1, 0x31); |
| } |
| |
| static void transpose_8x8_flip_avx2(const __m256i *in, __m256i *out) { |
| __m256i u0, u1, u2, u3, u4, u5, u6, u7; |
| __m256i x0, x1; |
| |
| u0 = _mm256_unpacklo_epi32(in[7], in[6]); |
| u1 = _mm256_unpackhi_epi32(in[7], in[6]); |
| |
| u2 = _mm256_unpacklo_epi32(in[5], in[4]); |
| u3 = _mm256_unpackhi_epi32(in[5], in[4]); |
| |
| u4 = _mm256_unpacklo_epi32(in[3], in[2]); |
| u5 = _mm256_unpackhi_epi32(in[3], in[2]); |
| |
| u6 = _mm256_unpacklo_epi32(in[1], in[0]); |
| u7 = _mm256_unpackhi_epi32(in[1], in[0]); |
| |
| x0 = _mm256_unpacklo_epi64(u0, u2); |
| x1 = _mm256_unpacklo_epi64(u4, u6); |
| out[0] = _mm256_permute2f128_si256(x0, x1, 0x20); |
| out[4] = _mm256_permute2f128_si256(x0, x1, 0x31); |
| |
| x0 = _mm256_unpackhi_epi64(u0, u2); |
| x1 = _mm256_unpackhi_epi64(u4, u6); |
| out[1] = _mm256_permute2f128_si256(x0, x1, 0x20); |
| out[5] = _mm256_permute2f128_si256(x0, x1, 0x31); |
| |
| x0 = _mm256_unpacklo_epi64(u1, u3); |
| x1 = _mm256_unpacklo_epi64(u5, u7); |
| out[2] = _mm256_permute2f128_si256(x0, x1, 0x20); |
| out[6] = _mm256_permute2f128_si256(x0, x1, 0x31); |
| |
| x0 = _mm256_unpackhi_epi64(u1, u3); |
| x1 = _mm256_unpackhi_epi64(u5, u7); |
| out[3] = _mm256_permute2f128_si256(x0, x1, 0x20); |
| out[7] = _mm256_permute2f128_si256(x0, x1, 0x31); |
| } |
| |
| static INLINE void load_buffer_32bit_input(const int32_t *in, int stride, |
| __m256i *out, int out_size) { |
| for (int i = 0; i < out_size; ++i) { |
| out[i] = _mm256_loadu_si256((const __m256i *)(in + i * stride)); |
| } |
| } |
| |
| static INLINE __m256i half_btf_0_avx2(const __m256i *w0, const __m256i *n0, |
| const __m256i *rounding, int bit) { |
| __m256i x; |
| x = _mm256_mullo_epi32(*w0, *n0); |
| x = _mm256_add_epi32(x, *rounding); |
| x = _mm256_srai_epi32(x, bit); |
| return x; |
| } |
| |
| static INLINE __m256i half_btf_avx2(const __m256i *w0, const __m256i *n0, |
| const __m256i *w1, const __m256i *n1, |
| const __m256i *rounding, int bit) { |
| __m256i x, y; |
| |
| x = _mm256_mullo_epi32(*w0, *n0); |
| y = _mm256_mullo_epi32(*w1, *n1); |
| x = _mm256_add_epi32(x, y); |
| x = _mm256_add_epi32(x, *rounding); |
| x = _mm256_srai_epi32(x, bit); |
| return x; |
| } |
| |
| static void addsub_avx2(const __m256i in0, const __m256i in1, __m256i *out0, |
| __m256i *out1, const __m256i *clamp_lo, |
| const __m256i *clamp_hi) { |
| __m256i a0 = _mm256_add_epi32(in0, in1); |
| __m256i a1 = _mm256_sub_epi32(in0, in1); |
| |
| a0 = _mm256_max_epi32(a0, *clamp_lo); |
| a0 = _mm256_min_epi32(a0, *clamp_hi); |
| a1 = _mm256_max_epi32(a1, *clamp_lo); |
| a1 = _mm256_min_epi32(a1, *clamp_hi); |
| |
| *out0 = a0; |
| *out1 = a1; |
| } |
| |
| static INLINE void idct32_stage4_avx2( |
| __m256i *bf1, const __m256i *cospim8, const __m256i *cospi56, |
| const __m256i *cospi8, const __m256i *cospim56, const __m256i *cospim40, |
| const __m256i *cospi24, const __m256i *cospi40, const __m256i *cospim24, |
| const __m256i *rounding, int bit) { |
| __m256i temp1, temp2; |
| temp1 = half_btf_avx2(cospim8, &bf1[17], cospi56, &bf1[30], rounding, bit); |
| bf1[30] = half_btf_avx2(cospi56, &bf1[17], cospi8, &bf1[30], rounding, bit); |
| bf1[17] = temp1; |
| |
| temp2 = half_btf_avx2(cospim56, &bf1[18], cospim8, &bf1[29], rounding, bit); |
| bf1[29] = half_btf_avx2(cospim8, &bf1[18], cospi56, &bf1[29], rounding, bit); |
| bf1[18] = temp2; |
| |
| temp1 = half_btf_avx2(cospim40, &bf1[21], cospi24, &bf1[26], rounding, bit); |
| bf1[26] = half_btf_avx2(cospi24, &bf1[21], cospi40, &bf1[26], rounding, bit); |
| bf1[21] = temp1; |
| |
| temp2 = half_btf_avx2(cospim24, &bf1[22], cospim40, &bf1[25], rounding, bit); |
| bf1[25] = half_btf_avx2(cospim40, &bf1[22], cospi24, &bf1[25], rounding, bit); |
| bf1[22] = temp2; |
| } |
| |
| static INLINE void idct32_stage5_avx2( |
| __m256i *bf1, const __m256i *cospim16, const __m256i *cospi48, |
| const __m256i *cospi16, const __m256i *cospim48, const __m256i *clamp_lo, |
| const __m256i *clamp_hi, const __m256i *rounding, int bit) { |
| __m256i temp1, temp2; |
| temp1 = half_btf_avx2(cospim16, &bf1[9], cospi48, &bf1[14], rounding, bit); |
| bf1[14] = half_btf_avx2(cospi48, &bf1[9], cospi16, &bf1[14], rounding, bit); |
| bf1[9] = temp1; |
| |
| temp2 = half_btf_avx2(cospim48, &bf1[10], cospim16, &bf1[13], rounding, bit); |
| bf1[13] = half_btf_avx2(cospim16, &bf1[10], cospi48, &bf1[13], rounding, bit); |
| bf1[10] = temp2; |
| |
| addsub_avx2(bf1[16], bf1[19], bf1 + 16, bf1 + 19, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[17], bf1[18], bf1 + 17, bf1 + 18, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[23], bf1[20], bf1 + 23, bf1 + 20, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[22], bf1[21], bf1 + 22, bf1 + 21, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[24], bf1[27], bf1 + 24, bf1 + 27, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[25], bf1[26], bf1 + 25, bf1 + 26, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[31], bf1[28], bf1 + 31, bf1 + 28, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[30], bf1[29], bf1 + 30, bf1 + 29, clamp_lo, clamp_hi); |
| } |
| |
| static INLINE void idct32_stage6_avx2( |
| __m256i *bf1, const __m256i *cospim32, const __m256i *cospi32, |
| const __m256i *cospim16, const __m256i *cospi48, const __m256i *cospi16, |
| const __m256i *cospim48, const __m256i *clamp_lo, const __m256i *clamp_hi, |
| const __m256i *rounding, int bit) { |
| __m256i temp1, temp2; |
| temp1 = half_btf_avx2(cospim32, &bf1[5], cospi32, &bf1[6], rounding, bit); |
| bf1[6] = half_btf_avx2(cospi32, &bf1[5], cospi32, &bf1[6], rounding, bit); |
| bf1[5] = temp1; |
| |
| addsub_avx2(bf1[8], bf1[11], bf1 + 8, bf1 + 11, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[9], bf1[10], bf1 + 9, bf1 + 10, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[15], bf1[12], bf1 + 15, bf1 + 12, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[14], bf1[13], bf1 + 14, bf1 + 13, clamp_lo, clamp_hi); |
| |
| temp1 = half_btf_avx2(cospim16, &bf1[18], cospi48, &bf1[29], rounding, bit); |
| bf1[29] = half_btf_avx2(cospi48, &bf1[18], cospi16, &bf1[29], rounding, bit); |
| bf1[18] = temp1; |
| temp2 = half_btf_avx2(cospim16, &bf1[19], cospi48, &bf1[28], rounding, bit); |
| bf1[28] = half_btf_avx2(cospi48, &bf1[19], cospi16, &bf1[28], rounding, bit); |
| bf1[19] = temp2; |
| temp1 = half_btf_avx2(cospim48, &bf1[20], cospim16, &bf1[27], rounding, bit); |
| bf1[27] = half_btf_avx2(cospim16, &bf1[20], cospi48, &bf1[27], rounding, bit); |
| bf1[20] = temp1; |
| temp2 = half_btf_avx2(cospim48, &bf1[21], cospim16, &bf1[26], rounding, bit); |
| bf1[26] = half_btf_avx2(cospim16, &bf1[21], cospi48, &bf1[26], rounding, bit); |
| bf1[21] = temp2; |
| } |
| |
| static INLINE void idct32_stage7_avx2(__m256i *bf1, const __m256i *cospim32, |
| const __m256i *cospi32, |
| const __m256i *clamp_lo, |
| const __m256i *clamp_hi, |
| const __m256i *rounding, int bit) { |
| __m256i temp1, temp2; |
| addsub_avx2(bf1[0], bf1[7], bf1 + 0, bf1 + 7, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[1], bf1[6], bf1 + 1, bf1 + 6, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[2], bf1[5], bf1 + 2, bf1 + 5, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[3], bf1[4], bf1 + 3, bf1 + 4, clamp_lo, clamp_hi); |
| |
| temp1 = half_btf_avx2(cospim32, &bf1[10], cospi32, &bf1[13], rounding, bit); |
| bf1[13] = half_btf_avx2(cospi32, &bf1[10], cospi32, &bf1[13], rounding, bit); |
| bf1[10] = temp1; |
| temp2 = half_btf_avx2(cospim32, &bf1[11], cospi32, &bf1[12], rounding, bit); |
| bf1[12] = half_btf_avx2(cospi32, &bf1[11], cospi32, &bf1[12], rounding, bit); |
| bf1[11] = temp2; |
| |
| addsub_avx2(bf1[16], bf1[23], bf1 + 16, bf1 + 23, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[17], bf1[22], bf1 + 17, bf1 + 22, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[18], bf1[21], bf1 + 18, bf1 + 21, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[19], bf1[20], bf1 + 19, bf1 + 20, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[31], bf1[24], bf1 + 31, bf1 + 24, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[30], bf1[25], bf1 + 30, bf1 + 25, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[29], bf1[26], bf1 + 29, bf1 + 26, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[28], bf1[27], bf1 + 28, bf1 + 27, clamp_lo, clamp_hi); |
| } |
| |
| static INLINE void idct32_stage8_avx2(__m256i *bf1, const __m256i *cospim32, |
| const __m256i *cospi32, |
| const __m256i *clamp_lo, |
| const __m256i *clamp_hi, |
| const __m256i *rounding, int bit) { |
| __m256i temp1, temp2; |
| addsub_avx2(bf1[0], bf1[15], bf1 + 0, bf1 + 15, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[1], bf1[14], bf1 + 1, bf1 + 14, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[2], bf1[13], bf1 + 2, bf1 + 13, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[3], bf1[12], bf1 + 3, bf1 + 12, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[4], bf1[11], bf1 + 4, bf1 + 11, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[5], bf1[10], bf1 + 5, bf1 + 10, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[6], bf1[9], bf1 + 6, bf1 + 9, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[7], bf1[8], bf1 + 7, bf1 + 8, clamp_lo, clamp_hi); |
| |
| temp1 = half_btf_avx2(cospim32, &bf1[20], cospi32, &bf1[27], rounding, bit); |
| bf1[27] = half_btf_avx2(cospi32, &bf1[20], cospi32, &bf1[27], rounding, bit); |
| bf1[20] = temp1; |
| temp2 = half_btf_avx2(cospim32, &bf1[21], cospi32, &bf1[26], rounding, bit); |
| bf1[26] = half_btf_avx2(cospi32, &bf1[21], cospi32, &bf1[26], rounding, bit); |
| bf1[21] = temp2; |
| temp1 = half_btf_avx2(cospim32, &bf1[22], cospi32, &bf1[25], rounding, bit); |
| bf1[25] = half_btf_avx2(cospi32, &bf1[22], cospi32, &bf1[25], rounding, bit); |
| bf1[22] = temp1; |
| temp2 = half_btf_avx2(cospim32, &bf1[23], cospi32, &bf1[24], rounding, bit); |
| bf1[24] = half_btf_avx2(cospi32, &bf1[23], cospi32, &bf1[24], rounding, bit); |
| bf1[23] = temp2; |
| } |
| |
| static INLINE void idct32_stage9_avx2(__m256i *bf1, __m256i *out, |
| const int do_cols, const int bd, |
| const int out_shift, |
| const __m256i *clamp_lo, |
| const __m256i *clamp_hi) { |
| addsub_avx2(bf1[0], bf1[31], out + 0, out + 31, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[1], bf1[30], out + 1, out + 30, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[2], bf1[29], out + 2, out + 29, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[3], bf1[28], out + 3, out + 28, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[4], bf1[27], out + 4, out + 27, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[5], bf1[26], out + 5, out + 26, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[6], bf1[25], out + 6, out + 25, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[7], bf1[24], out + 7, out + 24, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[8], bf1[23], out + 8, out + 23, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[9], bf1[22], out + 9, out + 22, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[10], bf1[21], out + 10, out + 21, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[11], bf1[20], out + 11, out + 20, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[12], bf1[19], out + 12, out + 19, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[13], bf1[18], out + 13, out + 18, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[14], bf1[17], out + 14, out + 17, clamp_lo, clamp_hi); |
| addsub_avx2(bf1[15], bf1[16], out + 15, out + 16, clamp_lo, clamp_hi); |
| if (!do_cols) { |
| const int log_range_out = AOMMAX(16, bd + 6); |
| const __m256i clamp_lo_out = _mm256_set1_epi32(-(1 << (log_range_out - 1))); |
| const __m256i clamp_hi_out = |
| _mm256_set1_epi32((1 << (log_range_out - 1)) - 1); |
| round_shift_8x8_avx2(out, out_shift); |
| round_shift_8x8_avx2(out + 16, out_shift); |
| highbd_clamp_epi32_avx2(out, out, &clamp_lo_out, &clamp_hi_out, 32); |
| } |
| } |
| |
| static void idct32_low1_avx2(__m256i *in, __m256i *out, int bit, int do_cols, |
| int bd, int out_shift) { |
| const int32_t *cospi = cospi_arr(bit); |
| const __m256i cospi32 = _mm256_set1_epi32(cospi[32]); |
| const __m256i rounding = _mm256_set1_epi32(1 << (bit - 1)); |
| const int log_range = AOMMAX(16, bd + (do_cols ? 6 : 8)); |
| __m256i clamp_lo = _mm256_set1_epi32(-(1 << (log_range - 1))); |
| __m256i clamp_hi = _mm256_set1_epi32((1 << (log_range - 1)) - 1); |
| __m256i x; |
| // stage 0 |
| // stage 1 |
| // stage 2 |
| // stage 3 |
| // stage 4 |
| // stage 5 |
| x = _mm256_mullo_epi32(in[0], cospi32); |
| x = _mm256_add_epi32(x, rounding); |
| x = _mm256_srai_epi32(x, bit); |
| |
| // stage 6 |
| // stage 7 |
| // stage 8 |
| // stage 9 |
| if (!do_cols) { |
| const int log_range_out = AOMMAX(16, bd + 6); |
| __m256i offset = _mm256_set1_epi32((1 << out_shift) >> 1); |
| clamp_lo = _mm256_set1_epi32(-(1 << (log_range_out - 1))); |
| clamp_hi = _mm256_set1_epi32((1 << (log_range_out - 1)) - 1); |
| x = _mm256_add_epi32(offset, x); |
| x = _mm256_sra_epi32(x, _mm_cvtsi32_si128(out_shift)); |
| } |
| x = _mm256_max_epi32(x, clamp_lo); |
| x = _mm256_min_epi32(x, clamp_hi); |
| out[0] = x; |
| out[1] = x; |
| out[2] = x; |
| out[3] = x; |
| out[4] = x; |
| out[5] = x; |
| out[6] = x; |
| out[7] = x; |
| out[8] = x; |
| out[9] = x; |
| out[10] = x; |
| out[11] = x; |
| out[12] = x; |
| out[13] = x; |
| out[14] = x; |
| out[15] = x; |
| out[16] = x; |
| out[17] = x; |
| out[18] = x; |
| out[19] = x; |
| out[20] = x; |
| out[21] = x; |
| out[22] = x; |
| out[23] = x; |
| out[24] = x; |
| out[25] = x; |
| out[26] = x; |
| out[27] = x; |
| out[28] = x; |
| out[29] = x; |
| out[30] = x; |
| out[31] = x; |
| } |
| |
| static void idct32_low8_avx2(__m256i *in, __m256i *out, int bit, int do_cols, |
| int bd, int out_shift) { |
| const int32_t *cospi = cospi_arr(bit); |
| const __m256i cospi62 = _mm256_set1_epi32(cospi[62]); |
| const __m256i cospi14 = _mm256_set1_epi32(cospi[14]); |
| const __m256i cospi54 = _mm256_set1_epi32(cospi[54]); |
| const __m256i cospi6 = _mm256_set1_epi32(cospi[6]); |
| const __m256i cospi10 = _mm256_set1_epi32(cospi[10]); |
| const __m256i cospi2 = _mm256_set1_epi32(cospi[2]); |
| const __m256i cospim58 = _mm256_set1_epi32(-cospi[58]); |
| const __m256i cospim50 = _mm256_set1_epi32(-cospi[50]); |
| const __m256i cospi60 = _mm256_set1_epi32(cospi[60]); |
| const __m256i cospi12 = _mm256_set1_epi32(cospi[12]); |
| const __m256i cospi4 = _mm256_set1_epi32(cospi[4]); |
| const __m256i cospim52 = _mm256_set1_epi32(-cospi[52]); |
| const __m256i cospi56 = _mm256_set1_epi32(cospi[56]); |
| const __m256i cospi24 = _mm256_set1_epi32(cospi[24]); |
| const __m256i cospi40 = _mm256_set1_epi32(cospi[40]); |
| const __m256i cospi8 = _mm256_set1_epi32(cospi[8]); |
| const __m256i cospim40 = _mm256_set1_epi32(-cospi[40]); |
| const __m256i cospim8 = _mm256_set1_epi32(-cospi[8]); |
| const __m256i cospim56 = _mm256_set1_epi32(-cospi[56]); |
| const __m256i cospim24 = _mm256_set1_epi32(-cospi[24]); |
| const __m256i cospi32 = _mm256_set1_epi32(cospi[32]); |
| const __m256i cospim32 = _mm256_set1_epi32(-cospi[32]); |
| const __m256i cospi48 = _mm256_set1_epi32(cospi[48]); |
| const __m256i cospim48 = _mm256_set1_epi32(-cospi[48]); |
| const __m256i cospi16 = _mm256_set1_epi32(cospi[16]); |
| const __m256i cospim16 = _mm256_set1_epi32(-cospi[16]); |
| const __m256i rounding = _mm256_set1_epi32(1 << (bit - 1)); |
| const int log_range = AOMMAX(16, bd + (do_cols ? 6 : 8)); |
| const __m256i clamp_lo = _mm256_set1_epi32(-(1 << (log_range - 1))); |
| const __m256i clamp_hi = _mm256_set1_epi32((1 << (log_range - 1)) - 1); |
| __m256i bf1[32]; |
| |
| { |
| // stage 0 |
| // stage 1 |
| bf1[0] = in[0]; |
| bf1[4] = in[4]; |
| bf1[8] = in[2]; |
| bf1[12] = in[6]; |
| bf1[16] = in[1]; |
| bf1[20] = in[5]; |
| bf1[24] = in[3]; |
| bf1[28] = in[7]; |
| |
| // stage 2 |
| bf1[31] = half_btf_0_avx2(&cospi2, &bf1[16], &rounding, bit); |
| bf1[16] = half_btf_0_avx2(&cospi62, &bf1[16], &rounding, bit); |
| bf1[19] = half_btf_0_avx2(&cospim50, &bf1[28], &rounding, bit); |
| bf1[28] = half_btf_0_avx2(&cospi14, &bf1[28], &rounding, bit); |
| bf1[27] = half_btf_0_avx2(&cospi10, &bf1[20], &rounding, bit); |
| bf1[20] = half_btf_0_avx2(&cospi54, &bf1[20], &rounding, bit); |
| bf1[23] = half_btf_0_avx2(&cospim58, &bf1[24], &rounding, bit); |
| bf1[24] = half_btf_0_avx2(&cospi6, &bf1[24], &rounding, bit); |
| |
| // stage 3 |
| bf1[15] = half_btf_0_avx2(&cospi4, &bf1[8], &rounding, bit); |
| bf1[8] = half_btf_0_avx2(&cospi60, &bf1[8], &rounding, bit); |
| |
| bf1[11] = half_btf_0_avx2(&cospim52, &bf1[12], &rounding, bit); |
| bf1[12] = half_btf_0_avx2(&cospi12, &bf1[12], &rounding, bit); |
| bf1[17] = bf1[16]; |
| bf1[18] = bf1[19]; |
| bf1[21] = bf1[20]; |
| bf1[22] = bf1[23]; |
| bf1[25] = bf1[24]; |
| bf1[26] = bf1[27]; |
| bf1[29] = bf1[28]; |
| bf1[30] = bf1[31]; |
| |
| // stage 4 |
| bf1[7] = half_btf_0_avx2(&cospi8, &bf1[4], &rounding, bit); |
| bf1[4] = half_btf_0_avx2(&cospi56, &bf1[4], &rounding, bit); |
| |
| bf1[9] = bf1[8]; |
| bf1[10] = bf1[11]; |
| bf1[13] = bf1[12]; |
| bf1[14] = bf1[15]; |
| |
| idct32_stage4_avx2(bf1, &cospim8, &cospi56, &cospi8, &cospim56, &cospim40, |
| &cospi24, &cospi40, &cospim24, &rounding, bit); |
| |
| // stage 5 |
| bf1[0] = half_btf_0_avx2(&cospi32, &bf1[0], &rounding, bit); |
| bf1[1] = bf1[0]; |
| bf1[5] = bf1[4]; |
| bf1[6] = bf1[7]; |
| |
| idct32_stage5_avx2(bf1, &cospim16, &cospi48, &cospi16, &cospim48, &clamp_lo, |
| &clamp_hi, &rounding, bit); |
| |
| // stage 6 |
| bf1[3] = bf1[0]; |
| bf1[2] = bf1[1]; |
| |
| idct32_stage6_avx2(bf1, &cospim32, &cospi32, &cospim16, &cospi48, &cospi16, |
| &cospim48, &clamp_lo, &clamp_hi, &rounding, bit); |
| |
| // stage 7 |
| idct32_stage7_avx2(bf1, &cospim32, &cospi32, &clamp_lo, &clamp_hi, |
| &rounding, bit); |
| |
| // stage 8 |
| idct32_stage8_avx2(bf1, &cospim32, &cospi32, &clamp_lo, &clamp_hi, |
| &rounding, bit); |
| |
| // stage 9 |
| idct32_stage9_avx2(bf1, out, do_cols, bd, out_shift, &clamp_lo, &clamp_hi); |
| } |
| } |
| |
| static void idct32_low16_avx2(__m256i *in, __m256i *out, int bit, int do_cols, |
| int bd, int out_shift) { |
| const int32_t *cospi = cospi_arr(bit); |
| const __m256i cospi62 = _mm256_set1_epi32(cospi[62]); |
| const __m256i cospi30 = _mm256_set1_epi32(cospi[30]); |
| const __m256i cospi46 = _mm256_set1_epi32(cospi[46]); |
| const __m256i cospi14 = _mm256_set1_epi32(cospi[14]); |
| const __m256i cospi54 = _mm256_set1_epi32(cospi[54]); |
| const __m256i cospi22 = _mm256_set1_epi32(cospi[22]); |
| const __m256i cospi38 = _mm256_set1_epi32(cospi[38]); |
| const __m256i cospi6 = _mm256_set1_epi32(cospi[6]); |
| const __m256i cospi26 = _mm256_set1_epi32(cospi[26]); |
| const __m256i cospi10 = _mm256_set1_epi32(cospi[10]); |
| const __m256i cospi18 = _mm256_set1_epi32(cospi[18]); |
| const __m256i cospi2 = _mm256_set1_epi32(cospi[2]); |
| const __m256i cospim58 = _mm256_set1_epi32(-cospi[58]); |
| const __m256i cospim42 = _mm256_set1_epi32(-cospi[42]); |
| const __m256i cospim50 = _mm256_set1_epi32(-cospi[50]); |
| const __m256i cospim34 = _mm256_set1_epi32(-cospi[34]); |
| const __m256i cospi60 = _mm256_set1_epi32(cospi[60]); |
| const __m256i cospi28 = _mm256_set1_epi32(cospi[28]); |
| const __m256i cospi44 = _mm256_set1_epi32(cospi[44]); |
| const __m256i cospi12 = _mm256_set1_epi32(cospi[12]); |
| const __m256i cospi20 = _mm256_set1_epi32(cospi[20]); |
| const __m256i cospi4 = _mm256_set1_epi32(cospi[4]); |
| const __m256i cospim52 = _mm256_set1_epi32(-cospi[52]); |
| const __m256i cospim36 = _mm256_set1_epi32(-cospi[36]); |
| const __m256i cospi56 = _mm256_set1_epi32(cospi[56]); |
| const __m256i cospi24 = _mm256_set1_epi32(cospi[24]); |
| const __m256i cospi40 = _mm256_set1_epi32(cospi[40]); |
| const __m256i cospi8 = _mm256_set1_epi32(cospi[8]); |
| const __m256i cospim40 = _mm256_set1_epi32(-cospi[40]); |
| const __m256i cospim8 = _mm256_set1_epi32(-cospi[8]); |
| const __m256i cospim56 = _mm256_set1_epi32(-cospi[56]); |
| const __m256i cospim24 = _mm256_set1_epi32(-cospi[24]); |
| const __m256i cospi32 = _mm256_set1_epi32(cospi[32]); |
| const __m256i cospim32 = _mm256_set1_epi32(-cospi[32]); |
| const __m256i cospi48 = _mm256_set1_epi32(cospi[48]); |
| const __m256i cospim48 = _mm256_set1_epi32(-cospi[48]); |
| const __m256i cospi16 = _mm256_set1_epi32(cospi[16]); |
| const __m256i cospim16 = _mm256_set1_epi32(-cospi[16]); |
| const __m256i rounding = _mm256_set1_epi32(1 << (bit - 1)); |
| const int log_range = AOMMAX(16, bd + (do_cols ? 6 : 8)); |
| const __m256i clamp_lo = _mm256_set1_epi32(-(1 << (log_range - 1))); |
| const __m256i clamp_hi = _mm256_set1_epi32((1 << (log_range - 1)) - 1); |
| __m256i bf1[32]; |
| |
| { |
| // stage 0 |
| // stage 1 |
| bf1[0] = in[0]; |
| bf1[2] = in[8]; |
| bf1[4] = in[4]; |
| bf1[6] = in[12]; |
| bf1[8] = in[2]; |
| bf1[10] = in[10]; |
| bf1[12] = in[6]; |
| bf1[14] = in[14]; |
| bf1[16] = in[1]; |
| bf1[18] = in[9]; |
| bf1[20] = in[5]; |
| bf1[22] = in[13]; |
| bf1[24] = in[3]; |
| bf1[26] = in[11]; |
| bf1[28] = in[7]; |
| bf1[30] = in[15]; |
| |
| // stage 2 |
| bf1[31] = half_btf_0_avx2(&cospi2, &bf1[16], &rounding, bit); |
| bf1[16] = half_btf_0_avx2(&cospi62, &bf1[16], &rounding, bit); |
| bf1[17] = half_btf_0_avx2(&cospim34, &bf1[30], &rounding, bit); |
| bf1[30] = half_btf_0_avx2(&cospi30, &bf1[30], &rounding, bit); |
| bf1[29] = half_btf_0_avx2(&cospi18, &bf1[18], &rounding, bit); |
| bf1[18] = half_btf_0_avx2(&cospi46, &bf1[18], &rounding, bit); |
| bf1[19] = half_btf_0_avx2(&cospim50, &bf1[28], &rounding, bit); |
| bf1[28] = half_btf_0_avx2(&cospi14, &bf1[28], &rounding, bit); |
| bf1[27] = half_btf_0_avx2(&cospi10, &bf1[20], &rounding, bit); |
| bf1[20] = half_btf_0_avx2(&cospi54, &bf1[20], &rounding, bit); |
| bf1[21] = half_btf_0_avx2(&cospim42, &bf1[26], &rounding, bit); |
| bf1[26] = half_btf_0_avx2(&cospi22, &bf1[26], &rounding, bit); |
| bf1[25] = half_btf_0_avx2(&cospi26, &bf1[22], &rounding, bit); |
| bf1[22] = half_btf_0_avx2(&cospi38, &bf1[22], &rounding, bit); |
| bf1[23] = half_btf_0_avx2(&cospim58, &bf1[24], &rounding, bit); |
| bf1[24] = half_btf_0_avx2(&cospi6, &bf1[24], &rounding, bit); |
| |
| // stage 3 |
| bf1[15] = half_btf_0_avx2(&cospi4, &bf1[8], &rounding, bit); |
| bf1[8] = half_btf_0_avx2(&cospi60, &bf1[8], &rounding, bit); |
| bf1[9] = half_btf_0_avx2(&cospim36, &bf1[14], &rounding, bit); |
| bf1[14] = half_btf_0_avx2(&cospi28, &bf1[14], &rounding, bit); |
| bf1[13] = half_btf_0_avx2(&cospi20, &bf1[10], &rounding, bit); |
| bf1[10] = half_btf_0_avx2(&cospi44, &bf1[10], &rounding, bit); |
| bf1[11] = half_btf_0_avx2(&cospim52, &bf1[12], &rounding, bit); |
| bf1[12] = half_btf_0_avx2(&cospi12, &bf1[12], &rounding, bit); |
| |
| addsub_avx2(bf1[16], bf1[17], bf1 + 16, bf1 + 17, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf1[19], bf1[18], bf1 + 19, bf1 + 18, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf1[20], bf1[21], bf1 + 20, bf1 + 21, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf1[23], bf1[22], bf1 + 23, bf1 + 22, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf1[24], bf1[25], bf1 + 24, bf1 + 25, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf1[27], bf1[26], bf1 + 27, bf1 + 26, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf1[28], bf1[29], bf1 + 28, bf1 + 29, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf1[31], bf1[30], bf1 + 31, bf1 + 30, &clamp_lo, &clamp_hi); |
| |
| // stage 4 |
| bf1[7] = half_btf_0_avx2(&cospi8, &bf1[4], &rounding, bit); |
| bf1[4] = half_btf_0_avx2(&cospi56, &bf1[4], &rounding, bit); |
| bf1[5] = half_btf_0_avx2(&cospim40, &bf1[6], &rounding, bit); |
| bf1[6] = half_btf_0_avx2(&cospi24, &bf1[6], &rounding, bit); |
| |
| addsub_avx2(bf1[8], bf1[9], bf1 + 8, bf1 + 9, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf1[11], bf1[10], bf1 + 11, bf1 + 10, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf1[12], bf1[13], bf1 + 12, bf1 + 13, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf1[15], bf1[14], bf1 + 15, bf1 + 14, &clamp_lo, &clamp_hi); |
| |
| idct32_stage4_avx2(bf1, &cospim8, &cospi56, &cospi8, &cospim56, &cospim40, |
| &cospi24, &cospi40, &cospim24, &rounding, bit); |
| |
| // stage 5 |
| bf1[0] = half_btf_0_avx2(&cospi32, &bf1[0], &rounding, bit); |
| bf1[1] = bf1[0]; |
| bf1[3] = half_btf_0_avx2(&cospi16, &bf1[2], &rounding, bit); |
| bf1[2] = half_btf_0_avx2(&cospi48, &bf1[2], &rounding, bit); |
| |
| addsub_avx2(bf1[4], bf1[5], bf1 + 4, bf1 + 5, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf1[7], bf1[6], bf1 + 7, bf1 + 6, &clamp_lo, &clamp_hi); |
| |
| idct32_stage5_avx2(bf1, &cospim16, &cospi48, &cospi16, &cospim48, &clamp_lo, |
| &clamp_hi, &rounding, bit); |
| |
| // stage 6 |
| addsub_avx2(bf1[0], bf1[3], bf1 + 0, bf1 + 3, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf1[1], bf1[2], bf1 + 1, bf1 + 2, &clamp_lo, &clamp_hi); |
| |
| idct32_stage6_avx2(bf1, &cospim32, &cospi32, &cospim16, &cospi48, &cospi16, |
| &cospim48, &clamp_lo, &clamp_hi, &rounding, bit); |
| |
| // stage 7 |
| idct32_stage7_avx2(bf1, &cospim32, &cospi32, &clamp_lo, &clamp_hi, |
| &rounding, bit); |
| |
| // stage 8 |
| idct32_stage8_avx2(bf1, &cospim32, &cospi32, &clamp_lo, &clamp_hi, |
| &rounding, bit); |
| |
| // stage 9 |
| idct32_stage9_avx2(bf1, out, do_cols, bd, out_shift, &clamp_lo, &clamp_hi); |
| } |
| } |
| |
| static void idct32_avx2(__m256i *in, __m256i *out, int bit, int do_cols, int bd, |
| int out_shift) { |
| const int32_t *cospi = cospi_arr(bit); |
| const __m256i cospi62 = _mm256_set1_epi32(cospi[62]); |
| const __m256i cospi30 = _mm256_set1_epi32(cospi[30]); |
| const __m256i cospi46 = _mm256_set1_epi32(cospi[46]); |
| const __m256i cospi14 = _mm256_set1_epi32(cospi[14]); |
| const __m256i cospi54 = _mm256_set1_epi32(cospi[54]); |
| const __m256i cospi22 = _mm256_set1_epi32(cospi[22]); |
| const __m256i cospi38 = _mm256_set1_epi32(cospi[38]); |
| const __m256i cospi6 = _mm256_set1_epi32(cospi[6]); |
| const __m256i cospi58 = _mm256_set1_epi32(cospi[58]); |
| const __m256i cospi26 = _mm256_set1_epi32(cospi[26]); |
| const __m256i cospi42 = _mm256_set1_epi32(cospi[42]); |
| const __m256i cospi10 = _mm256_set1_epi32(cospi[10]); |
| const __m256i cospi50 = _mm256_set1_epi32(cospi[50]); |
| const __m256i cospi18 = _mm256_set1_epi32(cospi[18]); |
| const __m256i cospi34 = _mm256_set1_epi32(cospi[34]); |
| const __m256i cospi2 = _mm256_set1_epi32(cospi[2]); |
| const __m256i cospim58 = _mm256_set1_epi32(-cospi[58]); |
| const __m256i cospim26 = _mm256_set1_epi32(-cospi[26]); |
| const __m256i cospim42 = _mm256_set1_epi32(-cospi[42]); |
| const __m256i cospim10 = _mm256_set1_epi32(-cospi[10]); |
| const __m256i cospim50 = _mm256_set1_epi32(-cospi[50]); |
| const __m256i cospim18 = _mm256_set1_epi32(-cospi[18]); |
| const __m256i cospim34 = _mm256_set1_epi32(-cospi[34]); |
| const __m256i cospim2 = _mm256_set1_epi32(-cospi[2]); |
| const __m256i cospi60 = _mm256_set1_epi32(cospi[60]); |
| const __m256i cospi28 = _mm256_set1_epi32(cospi[28]); |
| const __m256i cospi44 = _mm256_set1_epi32(cospi[44]); |
| const __m256i cospi12 = _mm256_set1_epi32(cospi[12]); |
| const __m256i cospi52 = _mm256_set1_epi32(cospi[52]); |
| const __m256i cospi20 = _mm256_set1_epi32(cospi[20]); |
| const __m256i cospi36 = _mm256_set1_epi32(cospi[36]); |
| const __m256i cospi4 = _mm256_set1_epi32(cospi[4]); |
| const __m256i cospim52 = _mm256_set1_epi32(-cospi[52]); |
| const __m256i cospim20 = _mm256_set1_epi32(-cospi[20]); |
| const __m256i cospim36 = _mm256_set1_epi32(-cospi[36]); |
| const __m256i cospim4 = _mm256_set1_epi32(-cospi[4]); |
| const __m256i cospi56 = _mm256_set1_epi32(cospi[56]); |
| const __m256i cospi24 = _mm256_set1_epi32(cospi[24]); |
| const __m256i cospi40 = _mm256_set1_epi32(cospi[40]); |
| const __m256i cospi8 = _mm256_set1_epi32(cospi[8]); |
| const __m256i cospim40 = _mm256_set1_epi32(-cospi[40]); |
| const __m256i cospim8 = _mm256_set1_epi32(-cospi[8]); |
| const __m256i cospim56 = _mm256_set1_epi32(-cospi[56]); |
| const __m256i cospim24 = _mm256_set1_epi32(-cospi[24]); |
| const __m256i cospi32 = _mm256_set1_epi32(cospi[32]); |
| const __m256i cospim32 = _mm256_set1_epi32(-cospi[32]); |
| const __m256i cospi48 = _mm256_set1_epi32(cospi[48]); |
| const __m256i cospim48 = _mm256_set1_epi32(-cospi[48]); |
| const __m256i cospi16 = _mm256_set1_epi32(cospi[16]); |
| const __m256i cospim16 = _mm256_set1_epi32(-cospi[16]); |
| const __m256i rounding = _mm256_set1_epi32(1 << (bit - 1)); |
| const int log_range = AOMMAX(16, bd + (do_cols ? 6 : 8)); |
| const __m256i clamp_lo = _mm256_set1_epi32(-(1 << (log_range - 1))); |
| const __m256i clamp_hi = _mm256_set1_epi32((1 << (log_range - 1)) - 1); |
| __m256i bf1[32], bf0[32]; |
| |
| { |
| // stage 0 |
| // stage 1 |
| bf1[0] = in[0]; |
| bf1[1] = in[16]; |
| bf1[2] = in[8]; |
| bf1[3] = in[24]; |
| bf1[4] = in[4]; |
| bf1[5] = in[20]; |
| bf1[6] = in[12]; |
| bf1[7] = in[28]; |
| bf1[8] = in[2]; |
| bf1[9] = in[18]; |
| bf1[10] = in[10]; |
| bf1[11] = in[26]; |
| bf1[12] = in[6]; |
| bf1[13] = in[22]; |
| bf1[14] = in[14]; |
| bf1[15] = in[30]; |
| bf1[16] = in[1]; |
| bf1[17] = in[17]; |
| bf1[18] = in[9]; |
| bf1[19] = in[25]; |
| bf1[20] = in[5]; |
| bf1[21] = in[21]; |
| bf1[22] = in[13]; |
| bf1[23] = in[29]; |
| bf1[24] = in[3]; |
| bf1[25] = in[19]; |
| bf1[26] = in[11]; |
| bf1[27] = in[27]; |
| bf1[28] = in[7]; |
| bf1[29] = in[23]; |
| bf1[30] = in[15]; |
| bf1[31] = in[31]; |
| |
| // stage 2 |
| bf0[0] = bf1[0]; |
| bf0[1] = bf1[1]; |
| bf0[2] = bf1[2]; |
| bf0[3] = bf1[3]; |
| bf0[4] = bf1[4]; |
| bf0[5] = bf1[5]; |
| bf0[6] = bf1[6]; |
| bf0[7] = bf1[7]; |
| bf0[8] = bf1[8]; |
| bf0[9] = bf1[9]; |
| bf0[10] = bf1[10]; |
| bf0[11] = bf1[11]; |
| bf0[12] = bf1[12]; |
| bf0[13] = bf1[13]; |
| bf0[14] = bf1[14]; |
| bf0[15] = bf1[15]; |
| bf0[16] = |
| half_btf_avx2(&cospi62, &bf1[16], &cospim2, &bf1[31], &rounding, bit); |
| bf0[17] = |
| half_btf_avx2(&cospi30, &bf1[17], &cospim34, &bf1[30], &rounding, bit); |
| bf0[18] = |
| half_btf_avx2(&cospi46, &bf1[18], &cospim18, &bf1[29], &rounding, bit); |
| bf0[19] = |
| half_btf_avx2(&cospi14, &bf1[19], &cospim50, &bf1[28], &rounding, bit); |
| bf0[20] = |
| half_btf_avx2(&cospi54, &bf1[20], &cospim10, &bf1[27], &rounding, bit); |
| bf0[21] = |
| half_btf_avx2(&cospi22, &bf1[21], &cospim42, &bf1[26], &rounding, bit); |
| bf0[22] = |
| half_btf_avx2(&cospi38, &bf1[22], &cospim26, &bf1[25], &rounding, bit); |
| bf0[23] = |
| half_btf_avx2(&cospi6, &bf1[23], &cospim58, &bf1[24], &rounding, bit); |
| bf0[24] = |
| half_btf_avx2(&cospi58, &bf1[23], &cospi6, &bf1[24], &rounding, bit); |
| bf0[25] = |
| half_btf_avx2(&cospi26, &bf1[22], &cospi38, &bf1[25], &rounding, bit); |
| bf0[26] = |
| half_btf_avx2(&cospi42, &bf1[21], &cospi22, &bf1[26], &rounding, bit); |
| bf0[27] = |
| half_btf_avx2(&cospi10, &bf1[20], &cospi54, &bf1[27], &rounding, bit); |
| bf0[28] = |
| half_btf_avx2(&cospi50, &bf1[19], &cospi14, &bf1[28], &rounding, bit); |
| bf0[29] = |
| half_btf_avx2(&cospi18, &bf1[18], &cospi46, &bf1[29], &rounding, bit); |
| bf0[30] = |
| half_btf_avx2(&cospi34, &bf1[17], &cospi30, &bf1[30], &rounding, bit); |
| bf0[31] = |
| half_btf_avx2(&cospi2, &bf1[16], &cospi62, &bf1[31], &rounding, bit); |
| |
| // stage 3 |
| bf1[0] = bf0[0]; |
| bf1[1] = bf0[1]; |
| bf1[2] = bf0[2]; |
| bf1[3] = bf0[3]; |
| bf1[4] = bf0[4]; |
| bf1[5] = bf0[5]; |
| bf1[6] = bf0[6]; |
| bf1[7] = bf0[7]; |
| bf1[8] = |
| half_btf_avx2(&cospi60, &bf0[8], &cospim4, &bf0[15], &rounding, bit); |
| bf1[9] = |
| half_btf_avx2(&cospi28, &bf0[9], &cospim36, &bf0[14], &rounding, bit); |
| bf1[10] = |
| half_btf_avx2(&cospi44, &bf0[10], &cospim20, &bf0[13], &rounding, bit); |
| bf1[11] = |
| half_btf_avx2(&cospi12, &bf0[11], &cospim52, &bf0[12], &rounding, bit); |
| bf1[12] = |
| half_btf_avx2(&cospi52, &bf0[11], &cospi12, &bf0[12], &rounding, bit); |
| bf1[13] = |
| half_btf_avx2(&cospi20, &bf0[10], &cospi44, &bf0[13], &rounding, bit); |
| bf1[14] = |
| half_btf_avx2(&cospi36, &bf0[9], &cospi28, &bf0[14], &rounding, bit); |
| bf1[15] = |
| half_btf_avx2(&cospi4, &bf0[8], &cospi60, &bf0[15], &rounding, bit); |
| |
| addsub_avx2(bf0[16], bf0[17], bf1 + 16, bf1 + 17, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[19], bf0[18], bf1 + 19, bf1 + 18, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[20], bf0[21], bf1 + 20, bf1 + 21, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[23], bf0[22], bf1 + 23, bf1 + 22, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[24], bf0[25], bf1 + 24, bf1 + 25, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[27], bf0[26], bf1 + 27, bf1 + 26, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[28], bf0[29], bf1 + 28, bf1 + 29, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[31], bf0[30], bf1 + 31, bf1 + 30, &clamp_lo, &clamp_hi); |
| |
| // stage 4 |
| bf0[0] = bf1[0]; |
| bf0[1] = bf1[1]; |
| bf0[2] = bf1[2]; |
| bf0[3] = bf1[3]; |
| bf0[4] = |
| half_btf_avx2(&cospi56, &bf1[4], &cospim8, &bf1[7], &rounding, bit); |
| bf0[5] = |
| half_btf_avx2(&cospi24, &bf1[5], &cospim40, &bf1[6], &rounding, bit); |
| bf0[6] = |
| half_btf_avx2(&cospi40, &bf1[5], &cospi24, &bf1[6], &rounding, bit); |
| bf0[7] = half_btf_avx2(&cospi8, &bf1[4], &cospi56, &bf1[7], &rounding, bit); |
| |
| addsub_avx2(bf1[8], bf1[9], bf0 + 8, bf0 + 9, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf1[11], bf1[10], bf0 + 11, bf0 + 10, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf1[12], bf1[13], bf0 + 12, bf0 + 13, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf1[15], bf1[14], bf0 + 15, bf0 + 14, &clamp_lo, &clamp_hi); |
| |
| bf0[16] = bf1[16]; |
| bf0[17] = |
| half_btf_avx2(&cospim8, &bf1[17], &cospi56, &bf1[30], &rounding, bit); |
| bf0[18] = |
| half_btf_avx2(&cospim56, &bf1[18], &cospim8, &bf1[29], &rounding, bit); |
| bf0[19] = bf1[19]; |
| bf0[20] = bf1[20]; |
| bf0[21] = |
| half_btf_avx2(&cospim40, &bf1[21], &cospi24, &bf1[26], &rounding, bit); |
| bf0[22] = |
| half_btf_avx2(&cospim24, &bf1[22], &cospim40, &bf1[25], &rounding, bit); |
| bf0[23] = bf1[23]; |
| bf0[24] = bf1[24]; |
| bf0[25] = |
| half_btf_avx2(&cospim40, &bf1[22], &cospi24, &bf1[25], &rounding, bit); |
| bf0[26] = |
| half_btf_avx2(&cospi24, &bf1[21], &cospi40, &bf1[26], &rounding, bit); |
| bf0[27] = bf1[27]; |
| bf0[28] = bf1[28]; |
| bf0[29] = |
| half_btf_avx2(&cospim8, &bf1[18], &cospi56, &bf1[29], &rounding, bit); |
| bf0[30] = |
| half_btf_avx2(&cospi56, &bf1[17], &cospi8, &bf1[30], &rounding, bit); |
| bf0[31] = bf1[31]; |
| |
| // stage 5 |
| bf1[0] = |
| half_btf_avx2(&cospi32, &bf0[0], &cospi32, &bf0[1], &rounding, bit); |
| bf1[1] = |
| half_btf_avx2(&cospi32, &bf0[0], &cospim32, &bf0[1], &rounding, bit); |
| bf1[2] = |
| half_btf_avx2(&cospi48, &bf0[2], &cospim16, &bf0[3], &rounding, bit); |
| bf1[3] = |
| half_btf_avx2(&cospi16, &bf0[2], &cospi48, &bf0[3], &rounding, bit); |
| addsub_avx2(bf0[4], bf0[5], bf1 + 4, bf1 + 5, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[7], bf0[6], bf1 + 7, bf1 + 6, &clamp_lo, &clamp_hi); |
| bf1[8] = bf0[8]; |
| bf1[9] = |
| half_btf_avx2(&cospim16, &bf0[9], &cospi48, &bf0[14], &rounding, bit); |
| bf1[10] = |
| half_btf_avx2(&cospim48, &bf0[10], &cospim16, &bf0[13], &rounding, bit); |
| bf1[11] = bf0[11]; |
| bf1[12] = bf0[12]; |
| bf1[13] = |
| half_btf_avx2(&cospim16, &bf0[10], &cospi48, &bf0[13], &rounding, bit); |
| bf1[14] = |
| half_btf_avx2(&cospi48, &bf0[9], &cospi16, &bf0[14], &rounding, bit); |
| bf1[15] = bf0[15]; |
| addsub_avx2(bf0[16], bf0[19], bf1 + 16, bf1 + 19, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[17], bf0[18], bf1 + 17, bf1 + 18, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[23], bf0[20], bf1 + 23, bf1 + 20, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[22], bf0[21], bf1 + 22, bf1 + 21, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[24], bf0[27], bf1 + 24, bf1 + 27, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[25], bf0[26], bf1 + 25, bf1 + 26, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[31], bf0[28], bf1 + 31, bf1 + 28, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[30], bf0[29], bf1 + 30, bf1 + 29, &clamp_lo, &clamp_hi); |
| |
| // stage 6 |
| addsub_avx2(bf1[0], bf1[3], bf0 + 0, bf0 + 3, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf1[1], bf1[2], bf0 + 1, bf0 + 2, &clamp_lo, &clamp_hi); |
| bf0[4] = bf1[4]; |
| bf0[5] = |
| half_btf_avx2(&cospim32, &bf1[5], &cospi32, &bf1[6], &rounding, bit); |
| bf0[6] = |
| half_btf_avx2(&cospi32, &bf1[5], &cospi32, &bf1[6], &rounding, bit); |
| bf0[7] = bf1[7]; |
| addsub_avx2(bf1[8], bf1[11], bf0 + 8, bf0 + 11, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf1[9], bf1[10], bf0 + 9, bf0 + 10, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf1[15], bf1[12], bf0 + 15, bf0 + 12, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf1[14], bf1[13], bf0 + 14, bf0 + 13, &clamp_lo, &clamp_hi); |
| bf0[16] = bf1[16]; |
| bf0[17] = bf1[17]; |
| bf0[18] = |
| half_btf_avx2(&cospim16, &bf1[18], &cospi48, &bf1[29], &rounding, bit); |
| bf0[19] = |
| half_btf_avx2(&cospim16, &bf1[19], &cospi48, &bf1[28], &rounding, bit); |
| bf0[20] = |
| half_btf_avx2(&cospim48, &bf1[20], &cospim16, &bf1[27], &rounding, bit); |
| bf0[21] = |
| half_btf_avx2(&cospim48, &bf1[21], &cospim16, &bf1[26], &rounding, bit); |
| bf0[22] = bf1[22]; |
| bf0[23] = bf1[23]; |
| bf0[24] = bf1[24]; |
| bf0[25] = bf1[25]; |
| bf0[26] = |
| half_btf_avx2(&cospim16, &bf1[21], &cospi48, &bf1[26], &rounding, bit); |
| bf0[27] = |
| half_btf_avx2(&cospim16, &bf1[20], &cospi48, &bf1[27], &rounding, bit); |
| bf0[28] = |
| half_btf_avx2(&cospi48, &bf1[19], &cospi16, &bf1[28], &rounding, bit); |
| bf0[29] = |
| half_btf_avx2(&cospi48, &bf1[18], &cospi16, &bf1[29], &rounding, bit); |
| bf0[30] = bf1[30]; |
| bf0[31] = bf1[31]; |
| |
| // stage 7 |
| addsub_avx2(bf0[0], bf0[7], bf1 + 0, bf1 + 7, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[1], bf0[6], bf1 + 1, bf1 + 6, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[2], bf0[5], bf1 + 2, bf1 + 5, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[3], bf0[4], bf1 + 3, bf1 + 4, &clamp_lo, &clamp_hi); |
| bf1[8] = bf0[8]; |
| bf1[9] = bf0[9]; |
| bf1[10] = |
| half_btf_avx2(&cospim32, &bf0[10], &cospi32, &bf0[13], &rounding, bit); |
| bf1[11] = |
| half_btf_avx2(&cospim32, &bf0[11], &cospi32, &bf0[12], &rounding, bit); |
| bf1[12] = |
| half_btf_avx2(&cospi32, &bf0[11], &cospi32, &bf0[12], &rounding, bit); |
| bf1[13] = |
| half_btf_avx2(&cospi32, &bf0[10], &cospi32, &bf0[13], &rounding, bit); |
| bf1[14] = bf0[14]; |
| bf1[15] = bf0[15]; |
| addsub_avx2(bf0[16], bf0[23], bf1 + 16, bf1 + 23, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[17], bf0[22], bf1 + 17, bf1 + 22, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[18], bf0[21], bf1 + 18, bf1 + 21, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[19], bf0[20], bf1 + 19, bf1 + 20, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[31], bf0[24], bf1 + 31, bf1 + 24, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[30], bf0[25], bf1 + 30, bf1 + 25, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[29], bf0[26], bf1 + 29, bf1 + 26, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[28], bf0[27], bf1 + 28, bf1 + 27, &clamp_lo, &clamp_hi); |
| |
| // stage 8 |
| addsub_avx2(bf1[0], bf1[15], bf0 + 0, bf0 + 15, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf1[1], bf1[14], bf0 + 1, bf0 + 14, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf1[2], bf1[13], bf0 + 2, bf0 + 13, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf1[3], bf1[12], bf0 + 3, bf0 + 12, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf1[4], bf1[11], bf0 + 4, bf0 + 11, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf1[5], bf1[10], bf0 + 5, bf0 + 10, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf1[6], bf1[9], bf0 + 6, bf0 + 9, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf1[7], bf1[8], bf0 + 7, bf0 + 8, &clamp_lo, &clamp_hi); |
| bf0[16] = bf1[16]; |
| bf0[17] = bf1[17]; |
| bf0[18] = bf1[18]; |
| bf0[19] = bf1[19]; |
| bf0[20] = |
| half_btf_avx2(&cospim32, &bf1[20], &cospi32, &bf1[27], &rounding, bit); |
| bf0[21] = |
| half_btf_avx2(&cospim32, &bf1[21], &cospi32, &bf1[26], &rounding, bit); |
| bf0[22] = |
| half_btf_avx2(&cospim32, &bf1[22], &cospi32, &bf1[25], &rounding, bit); |
| bf0[23] = |
| half_btf_avx2(&cospim32, &bf1[23], &cospi32, &bf1[24], &rounding, bit); |
| bf0[24] = |
| half_btf_avx2(&cospi32, &bf1[23], &cospi32, &bf1[24], &rounding, bit); |
| bf0[25] = |
| half_btf_avx2(&cospi32, &bf1[22], &cospi32, &bf1[25], &rounding, bit); |
| bf0[26] = |
| half_btf_avx2(&cospi32, &bf1[21], &cospi32, &bf1[26], &rounding, bit); |
| bf0[27] = |
| half_btf_avx2(&cospi32, &bf1[20], &cospi32, &bf1[27], &rounding, bit); |
| bf0[28] = bf1[28]; |
| bf0[29] = bf1[29]; |
| bf0[30] = bf1[30]; |
| bf0[31] = bf1[31]; |
| |
| // stage 9 |
| addsub_avx2(bf0[0], bf0[31], out + 0, out + 31, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[1], bf0[30], out + 1, out + 30, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[2], bf0[29], out + 2, out + 29, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[3], bf0[28], out + 3, out + 28, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[4], bf0[27], out + 4, out + 27, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[5], bf0[26], out + 5, out + 26, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[6], bf0[25], out + 6, out + 25, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[7], bf0[24], out + 7, out + 24, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[8], bf0[23], out + 8, out + 23, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[9], bf0[22], out + 9, out + 22, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[10], bf0[21], out + 10, out + 21, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[11], bf0[20], out + 11, out + 20, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[12], bf0[19], out + 12, out + 19, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[13], bf0[18], out + 13, out + 18, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[14], bf0[17], out + 14, out + 17, &clamp_lo, &clamp_hi); |
| addsub_avx2(bf0[15], bf0[16], out + 15, out + 16, &clamp_lo, &clamp_hi); |
| if (!do_cols) { |
| const int log_range_out = AOMMAX(16, bd + 6); |
| const __m256i clamp_lo_out = |
| _mm256_set1_epi32(-(1 << (log_range_out - 1))); |
| const __m256i clamp_hi_out = |
| _mm256_set1_epi32((1 << (log_range_out - 1)) - 1); |
| round_shift_8x8_avx2(out, out_shift); |
| round_shift_8x8_avx2(out + 16, out_shift); |
| highbd_clamp_epi32_avx2(out, out, &clamp_lo_out, &clamp_hi_out, 32); |
| } |
| } |
| } |
| static void idct16_low1_avx2(__m256i *in, __m256i *out, int bit, int do_cols, |
| int bd, int out_shift) { |
| const int32_t *cospi = cospi_arr(bit); |
| const __m256i cospi32 = _mm256_set1_epi32(cospi[32]); |
| const __m256i rnding = _mm256_set1_epi32(1 << (bit - 1)); |
| const int log_range = AOMMAX(16, bd + (do_cols ? 6 : 8)); |
| __m256i clamp_lo = _mm256_set1_epi32(-(1 << (log_range - 1))); |
| __m256i clamp_hi = _mm256_set1_epi32((1 << (log_range - 1)) - 1); |
| |
| { |
| // stage 0 |
| // stage 1 |
| // stage 2 |
| // stage 3 |
| // stage 4 |
| in[0] = _mm256_mullo_epi32(in[0], cospi32); |
| in[0] = _mm256_add_epi32(in[0], rnding); |
| in[0] = _mm256_srai_epi32(in[0], bit); |
| |
| // stage 5 |
| // stage 6 |
| // stage 7 |
| if (!do_cols) { |
| const int log_range_out = AOMMAX(16, bd + 6); |
| clamp_lo = _mm256_set1_epi32(-(1 << (log_range_out - 1))); |
| clamp_hi = _mm256_set1_epi32((1 << (log_range_out - 1)) - 1); |
| __m256i offset = _mm256_set1_epi32((1 << out_shift) >> 1); |
| in[0] = _mm256_add_epi32(in[0], offset); |
| in[0] = _mm256_sra_epi32(in[0], _mm_cvtsi32_si128(out_shift)); |
| } |
| in[0] = _mm256_max_epi32(in[0], clamp_lo); |
| in[0] = _mm256_min_epi32(in[0], clamp_hi); |
| out[0] = in[0]; |
| out[1] = in[0]; |
| out[2] = in[0]; |
| out[3] = in[0]; |
| out[4] = in[0]; |
| out[5] = in[0]; |
| out[6] = in[0]; |
| out[7] = in[0]; |
| out[8] = in[0]; |
| out[9] = in[0]; |
| out[10] = in[0]; |
| out[11] = in[0]; |
| out[12] = in[0]; |
| out[13] = in[0]; |
| out[14] = in[0]; |
| out[15] = in[0]; |
| } |
| } |
| |
| static void idct16_low8_avx2(__m256i *in, __m256i *out, int bit, int do_cols, |
| int bd, int out_shift) { |
| const int32_t *cospi = cospi_arr(bit); |
| const __m256i cospi60 = _mm256_set1_epi32(cospi[60]); |
| const __m256i cospi28 = _mm256_set1_epi32(cospi[28]); |
| const __m256i cospi44 = _mm256_set1_epi32(cospi[44]); |
| const __m256i cospi20 = _mm256_set1_epi32(cospi[20]); |
| const __m256i cospi12 = _mm256_set1_epi32(cospi[12]); |
| const __m256i cospi4 = _mm256_set1_epi32(cospi[4]); |
| const __m256i cospi56 = _mm256_set1_epi32(cospi[56]); |
| const __m256i cospi24 = _mm256_set1_epi32(cospi[24]); |
| const __m256i cospim40 = _mm256_set1_epi32(-cospi[40]); |
| const __m256i cospi8 = _mm256_set1_epi32(cospi[8]); |
| const __m256i cospi32 = _mm256_set1_epi32(cospi[32]); |
| const __m256i cospi48 = _mm256_set1_epi32(cospi[48]); |
| const __m256i cospi16 = _mm256_set1_epi32(cospi[16]); |
| const __m256i cospim16 = _mm256_set1_epi32(-cospi[16]); |
| const __m256i cospim48 = _mm256_set1_epi32(-cospi[48]); |
| const __m256i cospim36 = _mm256_set1_epi32(-cospi[36]); |
| const __m256i cospim52 = _mm256_set1_epi32(-cospi[52]); |
| const __m256i rnding = _mm256_set1_epi32(1 << (bit - 1)); |
| const int log_range = AOMMAX(16, bd + (do_cols ? 6 : 8)); |
| const __m256i clamp_lo = _mm256_set1_epi32(-(1 << (log_range - 1))); |
| const __m256i clamp_hi = _mm256_set1_epi32((1 << (log_range - 1)) - 1); |
| __m256i u[16], x, y; |
| |
| { |
| // stage 0 |
| // stage 1 |
| u[0] = in[0]; |
| u[2] = in[4]; |
| u[4] = in[2]; |
| u[6] = in[6]; |
| u[8] = in[1]; |
| u[10] = in[5]; |
| u[12] = in[3]; |
| u[14] = in[7]; |
| |
| // stage 2 |
| u[15] = half_btf_0_avx2(&cospi4, &u[8], &rnding, bit); |
| u[8] = half_btf_0_avx2(&cospi60, &u[8], &rnding, bit); |
| |
| u[9] = half_btf_0_avx2(&cospim36, &u[14], &rnding, bit); |
| u[14] = half_btf_0_avx2(&cospi28, &u[14], &rnding, bit); |
| |
| u[13] = half_btf_0_avx2(&cospi20, &u[10], &rnding, bit); |
| u[10] = half_btf_0_avx2(&cospi44, &u[10], &rnding, bit); |
| |
| u[11] = half_btf_0_avx2(&cospim52, &u[12], &rnding, bit); |
| u[12] = half_btf_0_avx2(&cospi12, &u[12], &rnding, bit); |
| |
| // stage 3 |
| u[7] = half_btf_0_avx2(&cospi8, &u[4], &rnding, bit); |
| u[4] = half_btf_0_avx2(&cospi56, &u[4], &rnding, bit); |
| u[5] = half_btf_0_avx2(&cospim40, &u[6], &rnding, bit); |
| u[6] = half_btf_0_avx2(&cospi24, &u[6], &rnding, bit); |
| |
| addsub_avx2(u[8], u[9], &u[8], &u[9], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[11], u[10], &u[11], &u[10], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[12], u[13], &u[12], &u[13], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[15], u[14], &u[15], &u[14], &clamp_lo, &clamp_hi); |
| |
| // stage 4 |
| x = _mm256_mullo_epi32(u[0], cospi32); |
| u[0] = _mm256_add_epi32(x, rnding); |
| u[0] = _mm256_srai_epi32(u[0], bit); |
| u[1] = u[0]; |
| |
| u[3] = half_btf_0_avx2(&cospi16, &u[2], &rnding, bit); |
| u[2] = half_btf_0_avx2(&cospi48, &u[2], &rnding, bit); |
| |
| addsub_avx2(u[4], u[5], &u[4], &u[5], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[7], u[6], &u[7], &u[6], &clamp_lo, &clamp_hi); |
| |
| x = half_btf_avx2(&cospim16, &u[9], &cospi48, &u[14], &rnding, bit); |
| u[14] = half_btf_avx2(&cospi48, &u[9], &cospi16, &u[14], &rnding, bit); |
| u[9] = x; |
| y = half_btf_avx2(&cospim48, &u[10], &cospim16, &u[13], &rnding, bit); |
| u[13] = half_btf_avx2(&cospim16, &u[10], &cospi48, &u[13], &rnding, bit); |
| u[10] = y; |
| |
| // stage 5 |
| addsub_avx2(u[0], u[3], &u[0], &u[3], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[1], u[2], &u[1], &u[2], &clamp_lo, &clamp_hi); |
| |
| x = _mm256_mullo_epi32(u[5], cospi32); |
| y = _mm256_mullo_epi32(u[6], cospi32); |
| u[5] = _mm256_sub_epi32(y, x); |
| u[5] = _mm256_add_epi32(u[5], rnding); |
| u[5] = _mm256_srai_epi32(u[5], bit); |
| |
| u[6] = _mm256_add_epi32(y, x); |
| u[6] = _mm256_add_epi32(u[6], rnding); |
| u[6] = _mm256_srai_epi32(u[6], bit); |
| |
| addsub_avx2(u[8], u[11], &u[8], &u[11], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[9], u[10], &u[9], &u[10], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[15], u[12], &u[15], &u[12], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[14], u[13], &u[14], &u[13], &clamp_lo, &clamp_hi); |
| |
| // stage 6 |
| addsub_avx2(u[0], u[7], &u[0], &u[7], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[1], u[6], &u[1], &u[6], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[2], u[5], &u[2], &u[5], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[3], u[4], &u[3], &u[4], &clamp_lo, &clamp_hi); |
| |
| x = _mm256_mullo_epi32(u[10], cospi32); |
| y = _mm256_mullo_epi32(u[13], cospi32); |
| u[10] = _mm256_sub_epi32(y, x); |
| u[10] = _mm256_add_epi32(u[10], rnding); |
| u[10] = _mm256_srai_epi32(u[10], bit); |
| |
| u[13] = _mm256_add_epi32(x, y); |
| u[13] = _mm256_add_epi32(u[13], rnding); |
| u[13] = _mm256_srai_epi32(u[13], bit); |
| |
| x = _mm256_mullo_epi32(u[11], cospi32); |
| y = _mm256_mullo_epi32(u[12], cospi32); |
| u[11] = _mm256_sub_epi32(y, x); |
| u[11] = _mm256_add_epi32(u[11], rnding); |
| u[11] = _mm256_srai_epi32(u[11], bit); |
| |
| u[12] = _mm256_add_epi32(x, y); |
| u[12] = _mm256_add_epi32(u[12], rnding); |
| u[12] = _mm256_srai_epi32(u[12], bit); |
| // stage 7 |
| addsub_avx2(u[0], u[15], out + 0, out + 15, &clamp_lo, &clamp_hi); |
| addsub_avx2(u[1], u[14], out + 1, out + 14, &clamp_lo, &clamp_hi); |
| addsub_avx2(u[2], u[13], out + 2, out + 13, &clamp_lo, &clamp_hi); |
| addsub_avx2(u[3], u[12], out + 3, out + 12, &clamp_lo, &clamp_hi); |
| addsub_avx2(u[4], u[11], out + 4, out + 11, &clamp_lo, &clamp_hi); |
| addsub_avx2(u[5], u[10], out + 5, out + 10, &clamp_lo, &clamp_hi); |
| addsub_avx2(u[6], u[9], out + 6, out + 9, &clamp_lo, &clamp_hi); |
| addsub_avx2(u[7], u[8], out + 7, out + 8, &clamp_lo, &clamp_hi); |
| |
| if (!do_cols) { |
| const int log_range_out = AOMMAX(16, bd + 6); |
| const __m256i clamp_lo_out = |
| _mm256_set1_epi32(-(1 << (log_range_out - 1))); |
| const __m256i clamp_hi_out = |
| _mm256_set1_epi32((1 << (log_range_out - 1)) - 1); |
| round_shift_8x8_avx2(out, out_shift); |
| highbd_clamp_epi32_avx2(out, out, &clamp_lo_out, &clamp_hi_out, 16); |
| } |
| } |
| } |
| |
| static void idct16_avx2(__m256i *in, __m256i *out, int bit, int do_cols, int bd, |
| int out_shift) { |
| const int32_t *cospi = cospi_arr(bit); |
| const __m256i cospi60 = _mm256_set1_epi32(cospi[60]); |
| const __m256i cospim4 = _mm256_set1_epi32(-cospi[4]); |
| const __m256i cospi28 = _mm256_set1_epi32(cospi[28]); |
| const __m256i cospim36 = _mm256_set1_epi32(-cospi[36]); |
| const __m256i cospi44 = _mm256_set1_epi32(cospi[44]); |
| const __m256i cospi20 = _mm256_set1_epi32(cospi[20]); |
| const __m256i cospim20 = _mm256_set1_epi32(-cospi[20]); |
| const __m256i cospi12 = _mm256_set1_epi32(cospi[12]); |
| const __m256i cospim52 = _mm256_set1_epi32(-cospi[52]); |
| const __m256i cospi52 = _mm256_set1_epi32(cospi[52]); |
| const __m256i cospi36 = _mm256_set1_epi32(cospi[36]); |
| const __m256i cospi4 = _mm256_set1_epi32(cospi[4]); |
| const __m256i cospi56 = _mm256_set1_epi32(cospi[56]); |
| const __m256i cospim8 = _mm256_set1_epi32(-cospi[8]); |
| const __m256i cospi24 = _mm256_set1_epi32(cospi[24]); |
| const __m256i cospim40 = _mm256_set1_epi32(-cospi[40]); |
| const __m256i cospi40 = _mm256_set1_epi32(cospi[40]); |
| const __m256i cospi8 = _mm256_set1_epi32(cospi[8]); |
| const __m256i cospi32 = _mm256_set1_epi32(cospi[32]); |
| const __m256i cospi48 = _mm256_set1_epi32(cospi[48]); |
| const __m256i cospi16 = _mm256_set1_epi32(cospi[16]); |
| const __m256i cospim16 = _mm256_set1_epi32(-cospi[16]); |
| const __m256i cospim48 = _mm256_set1_epi32(-cospi[48]); |
| const __m256i rnding = _mm256_set1_epi32(1 << (bit - 1)); |
| const int log_range = AOMMAX(16, bd + (do_cols ? 6 : 8)); |
| const __m256i clamp_lo = _mm256_set1_epi32(-(1 << (log_range - 1))); |
| const __m256i clamp_hi = _mm256_set1_epi32((1 << (log_range - 1)) - 1); |
| __m256i u[16], v[16], x, y; |
| |
| { |
| // stage 0 |
| // stage 1 |
| u[0] = in[0]; |
| u[1] = in[8]; |
| u[2] = in[4]; |
| u[3] = in[12]; |
| u[4] = in[2]; |
| u[5] = in[10]; |
| u[6] = in[6]; |
| u[7] = in[14]; |
| u[8] = in[1]; |
| u[9] = in[9]; |
| u[10] = in[5]; |
| u[11] = in[13]; |
| u[12] = in[3]; |
| u[13] = in[11]; |
| u[14] = in[7]; |
| u[15] = in[15]; |
| |
| // stage 2 |
| v[0] = u[0]; |
| v[1] = u[1]; |
| v[2] = u[2]; |
| v[3] = u[3]; |
| v[4] = u[4]; |
| v[5] = u[5]; |
| v[6] = u[6]; |
| v[7] = u[7]; |
| |
| v[8] = half_btf_avx2(&cospi60, &u[8], &cospim4, &u[15], &rnding, bit); |
| v[9] = half_btf_avx2(&cospi28, &u[9], &cospim36, &u[14], &rnding, bit); |
| v[10] = half_btf_avx2(&cospi44, &u[10], &cospim20, &u[13], &rnding, bit); |
| v[11] = half_btf_avx2(&cospi12, &u[11], &cospim52, &u[12], &rnding, bit); |
| v[12] = half_btf_avx2(&cospi52, &u[11], &cospi12, &u[12], &rnding, bit); |
| v[13] = half_btf_avx2(&cospi20, &u[10], &cospi44, &u[13], &rnding, bit); |
| v[14] = half_btf_avx2(&cospi36, &u[9], &cospi28, &u[14], &rnding, bit); |
| v[15] = half_btf_avx2(&cospi4, &u[8], &cospi60, &u[15], &rnding, bit); |
| |
| // stage 3 |
| u[0] = v[0]; |
| u[1] = v[1]; |
| u[2] = v[2]; |
| u[3] = v[3]; |
| u[4] = half_btf_avx2(&cospi56, &v[4], &cospim8, &v[7], &rnding, bit); |
| u[5] = half_btf_avx2(&cospi24, &v[5], &cospim40, &v[6], &rnding, bit); |
| u[6] = half_btf_avx2(&cospi40, &v[5], &cospi24, &v[6], &rnding, bit); |
| u[7] = half_btf_avx2(&cospi8, &v[4], &cospi56, &v[7], &rnding, bit); |
| addsub_avx2(v[8], v[9], &u[8], &u[9], &clamp_lo, &clamp_hi); |
| addsub_avx2(v[11], v[10], &u[11], &u[10], &clamp_lo, &clamp_hi); |
| addsub_avx2(v[12], v[13], &u[12], &u[13], &clamp_lo, &clamp_hi); |
| addsub_avx2(v[15], v[14], &u[15], &u[14], &clamp_lo, &clamp_hi); |
| |
| // stage 4 |
| x = _mm256_mullo_epi32(u[0], cospi32); |
| y = _mm256_mullo_epi32(u[1], cospi32); |
| v[0] = _mm256_add_epi32(x, y); |
| v[0] = _mm256_add_epi32(v[0], rnding); |
| v[0] = _mm256_srai_epi32(v[0], bit); |
| |
| v[1] = _mm256_sub_epi32(x, y); |
| v[1] = _mm256_add_epi32(v[1], rnding); |
| v[1] = _mm256_srai_epi32(v[1], bit); |
| |
| v[2] = half_btf_avx2(&cospi48, &u[2], &cospim16, &u[3], &rnding, bit); |
| v[3] = half_btf_avx2(&cospi16, &u[2], &cospi48, &u[3], &rnding, bit); |
| addsub_avx2(u[4], u[5], &v[4], &v[5], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[7], u[6], &v[7], &v[6], &clamp_lo, &clamp_hi); |
| v[8] = u[8]; |
| v[9] = half_btf_avx2(&cospim16, &u[9], &cospi48, &u[14], &rnding, bit); |
| v[10] = half_btf_avx2(&cospim48, &u[10], &cospim16, &u[13], &rnding, bit); |
| v[11] = u[11]; |
| v[12] = u[12]; |
| v[13] = half_btf_avx2(&cospim16, &u[10], &cospi48, &u[13], &rnding, bit); |
| v[14] = half_btf_avx2(&cospi48, &u[9], &cospi16, &u[14], &rnding, bit); |
| v[15] = u[15]; |
| |
| // stage 5 |
| addsub_avx2(v[0], v[3], &u[0], &u[3], &clamp_lo, &clamp_hi); |
| addsub_avx2(v[1], v[2], &u[1], &u[2], &clamp_lo, &clamp_hi); |
| u[4] = v[4]; |
| |
| x = _mm256_mullo_epi32(v[5], cospi32); |
| y = _mm256_mullo_epi32(v[6], cospi32); |
| u[5] = _mm256_sub_epi32(y, x); |
| u[5] = _mm256_add_epi32(u[5], rnding); |
| u[5] = _mm256_srai_epi32(u[5], bit); |
| |
| u[6] = _mm256_add_epi32(y, x); |
| u[6] = _mm256_add_epi32(u[6], rnding); |
| u[6] = _mm256_srai_epi32(u[6], bit); |
| |
| u[7] = v[7]; |
| addsub_avx2(v[8], v[11], &u[8], &u[11], &clamp_lo, &clamp_hi); |
| addsub_avx2(v[9], v[10], &u[9], &u[10], &clamp_lo, &clamp_hi); |
| addsub_avx2(v[15], v[12], &u[15], &u[12], &clamp_lo, &clamp_hi); |
| addsub_avx2(v[14], v[13], &u[14], &u[13], &clamp_lo, &clamp_hi); |
| |
| // stage 6 |
| addsub_avx2(u[0], u[7], &v[0], &v[7], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[1], u[6], &v[1], &v[6], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[2], u[5], &v[2], &v[5], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[3], u[4], &v[3], &v[4], &clamp_lo, &clamp_hi); |
| v[8] = u[8]; |
| v[9] = u[9]; |
| |
| x = _mm256_mullo_epi32(u[10], cospi32); |
| y = _mm256_mullo_epi32(u[13], cospi32); |
| v[10] = _mm256_sub_epi32(y, x); |
| v[10] = _mm256_add_epi32(v[10], rnding); |
| v[10] = _mm256_srai_epi32(v[10], bit); |
| |
| v[13] = _mm256_add_epi32(x, y); |
| v[13] = _mm256_add_epi32(v[13], rnding); |
| v[13] = _mm256_srai_epi32(v[13], bit); |
| |
| x = _mm256_mullo_epi32(u[11], cospi32); |
| y = _mm256_mullo_epi32(u[12], cospi32); |
| v[11] = _mm256_sub_epi32(y, x); |
| v[11] = _mm256_add_epi32(v[11], rnding); |
| v[11] = _mm256_srai_epi32(v[11], bit); |
| |
| v[12] = _mm256_add_epi32(x, y); |
| v[12] = _mm256_add_epi32(v[12], rnding); |
| v[12] = _mm256_srai_epi32(v[12], bit); |
| |
| v[14] = u[14]; |
| v[15] = u[15]; |
| |
| // stage 7 |
| addsub_avx2(v[0], v[15], out + 0, out + 15, &clamp_lo, &clamp_hi); |
| addsub_avx2(v[1], v[14], out + 1, out + 14, &clamp_lo, &clamp_hi); |
| addsub_avx2(v[2], v[13], out + 2, out + 13, &clamp_lo, &clamp_hi); |
| addsub_avx2(v[3], v[12], out + 3, out + 12, &clamp_lo, &clamp_hi); |
| addsub_avx2(v[4], v[11], out + 4, out + 11, &clamp_lo, &clamp_hi); |
| addsub_avx2(v[5], v[10], out + 5, out + 10, &clamp_lo, &clamp_hi); |
| addsub_avx2(v[6], v[9], out + 6, out + 9, &clamp_lo, &clamp_hi); |
| addsub_avx2(v[7], v[8], out + 7, out + 8, &clamp_lo, &clamp_hi); |
| |
| if (!do_cols) { |
| const int log_range_out = AOMMAX(16, bd + 6); |
| const __m256i clamp_lo_out = |
| _mm256_set1_epi32(-(1 << (log_range_out - 1))); |
| const __m256i clamp_hi_out = |
| _mm256_set1_epi32((1 << (log_range_out - 1)) - 1); |
| round_shift_8x8_avx2(out, out_shift); |
| highbd_clamp_epi32_avx2(out, out, &clamp_lo_out, &clamp_hi_out, 16); |
| } |
| } |
| } |
| |
| static void iadst16_low1_avx2(__m256i *in, __m256i *out, int bit, int do_cols, |
| int bd, int out_shift) { |
| const int32_t *cospi = cospi_arr(bit); |
| const __m256i cospi2 = _mm256_set1_epi32(cospi[2]); |
| const __m256i cospi62 = _mm256_set1_epi32(cospi[62]); |
| const __m256i cospi8 = _mm256_set1_epi32(cospi[8]); |
| const __m256i cospi56 = _mm256_set1_epi32(cospi[56]); |
| const __m256i cospi48 = _mm256_set1_epi32(cospi[48]); |
| const __m256i cospi16 = _mm256_set1_epi32(cospi[16]); |
| const __m256i cospi32 = _mm256_set1_epi32(cospi[32]); |
| const __m256i rnding = _mm256_set1_epi32(1 << (bit - 1)); |
| const __m256i zero = _mm256_setzero_si256(); |
| __m256i v[16], x, y, temp1, temp2; |
| |
| // Calculate the column 0, 1, 2, 3 |
| { |
| // stage 0 |
| // stage 1 |
| // stage 2 |
| x = _mm256_mullo_epi32(in[0], cospi62); |
| v[0] = _mm256_add_epi32(x, rnding); |
| v[0] = _mm256_srai_epi32(v[0], bit); |
| |
| x = _mm256_mullo_epi32(in[0], cospi2); |
| v[1] = _mm256_sub_epi32(zero, x); |
| v[1] = _mm256_add_epi32(v[1], rnding); |
| v[1] = _mm256_srai_epi32(v[1], bit); |
| |
| // stage 3 |
| v[8] = v[0]; |
| v[9] = v[1]; |
| |
| // stage 4 |
| temp1 = _mm256_mullo_epi32(v[8], cospi8); |
| x = _mm256_mullo_epi32(v[9], cospi56); |
| temp1 = _mm256_add_epi32(temp1, x); |
| temp1 = _mm256_add_epi32(temp1, rnding); |
| temp1 = _mm256_srai_epi32(temp1, bit); |
| |
| temp2 = _mm256_mullo_epi32(v[8], cospi56); |
| x = _mm256_mullo_epi32(v[9], cospi8); |
| temp2 = _mm256_sub_epi32(temp2, x); |
| temp2 = _mm256_add_epi32(temp2, rnding); |
| temp2 = _mm256_srai_epi32(temp2, bit); |
| v[8] = temp1; |
| v[9] = temp2; |
| |
| // stage 5 |
| v[4] = v[0]; |
| v[5] = v[1]; |
| v[12] = v[8]; |
| v[13] = v[9]; |
| |
| // stage 6 |
| temp1 = _mm256_mullo_epi32(v[4], cospi16); |
| x = _mm256_mullo_epi32(v[5], cospi48); |
| temp1 = _mm256_add_epi32(temp1, x); |
| temp1 = _mm256_add_epi32(temp1, rnding); |
| temp1 = _mm256_srai_epi32(temp1, bit); |
| |
| temp2 = _mm256_mullo_epi32(v[4], cospi48); |
| x = _mm256_mullo_epi32(v[5], cospi16); |
| temp2 = _mm256_sub_epi32(temp2, x); |
| temp2 = _mm256_add_epi32(temp2, rnding); |
| temp2 = _mm256_srai_epi32(temp2, bit); |
| v[4] = temp1; |
| v[5] = temp2; |
| |
| temp1 = _mm256_mullo_epi32(v[12], cospi16); |
| x = _mm256_mullo_epi32(v[13], cospi48); |
| temp1 = _mm256_add_epi32(temp1, x); |
| temp1 = _mm256_add_epi32(temp1, rnding); |
| temp1 = _mm256_srai_epi32(temp1, bit); |
| |
| temp2 = _mm256_mullo_epi32(v[12], cospi48); |
| x = _mm256_mullo_epi32(v[13], cospi16); |
| temp2 = _mm256_sub_epi32(temp2, x); |
| temp2 = _mm256_add_epi32(temp2, rnding); |
| temp2 = _mm256_srai_epi32(temp2, bit); |
| v[12] = temp1; |
| v[13] = temp2; |
| |
| // stage 7 |
| v[2] = v[0]; |
| v[3] = v[1]; |
| v[6] = v[4]; |
| v[7] = v[5]; |
| v[10] = v[8]; |
| v[11] = v[9]; |
| v[14] = v[12]; |
| v[15] = v[13]; |
| |
| // stage 8 |
| y = _mm256_mullo_epi32(v[2], cospi32); |
| x = _mm256_mullo_epi32(v[3], cospi32); |
| v[2] = _mm256_add_epi32(y, x); |
| v[2] = _mm256_add_epi32(v[2], rnding); |
| v[2] = _mm256_srai_epi32(v[2], bit); |
| |
| v[3] = _mm256_sub_epi32(y, x); |
| v[3] = _mm256_add_epi32(v[3], rnding); |
| v[3] = _mm256_srai_epi32(v[3], bit); |
| |
| y = _mm256_mullo_epi32(v[6], cospi32); |
| x = _mm256_mullo_epi32(v[7], cospi32); |
| v[6] = _mm256_add_epi32(y, x); |
| v[6] = _mm256_add_epi32(v[6], rnding); |
| v[6] = _mm256_srai_epi32(v[6], bit); |
| |
| v[7] = _mm256_sub_epi32(y, x); |
| v[7] = _mm256_add_epi32(v[7], rnding); |
| v[7] = _mm256_srai_epi32(v[7], bit); |
| |
| y = _mm256_mullo_epi32(v[10], cospi32); |
| x = _mm256_mullo_epi32(v[11], cospi32); |
| v[10] = _mm256_add_epi32(y, x); |
| v[10] = _mm256_add_epi32(v[10], rnding); |
| v[10] = _mm256_srai_epi32(v[10], bit); |
| |
| v[11] = _mm256_sub_epi32(y, x); |
| v[11] = _mm256_add_epi32(v[11], rnding); |
| v[11] = _mm256_srai_epi32(v[11], bit); |
| |
| y = _mm256_mullo_epi32(v[14], cospi32); |
| x = _mm256_mullo_epi32(v[15], cospi32); |
| v[14] = _mm256_add_epi32(y, x); |
| v[14] = _mm256_add_epi32(v[14], rnding); |
| v[14] = _mm256_srai_epi32(v[14], bit); |
| |
| v[15] = _mm256_sub_epi32(y, x); |
| v[15] = _mm256_add_epi32(v[15], rnding); |
| v[15] = _mm256_srai_epi32(v[15], bit); |
| |
| // stage 9 |
| if (do_cols) { |
| out[0] = v[0]; |
| out[1] = _mm256_sub_epi32(_mm256_setzero_si256(), v[8]); |
| out[2] = v[12]; |
| out[3] = _mm256_sub_epi32(_mm256_setzero_si256(), v[4]); |
| out[4] = v[6]; |
| out[5] = _mm256_sub_epi32(_mm256_setzero_si256(), v[14]); |
| out[6] = v[10]; |
| out[7] = _mm256_sub_epi32(_mm256_setzero_si256(), v[2]); |
| out[8] = v[3]; |
| out[9] = _mm256_sub_epi32(_mm256_setzero_si256(), v[11]); |
| out[10] = v[15]; |
| out[11] = _mm256_sub_epi32(_mm256_setzero_si256(), v[7]); |
| out[12] = v[5]; |
| out[13] = _mm256_sub_epi32(_mm256_setzero_si256(), v[13]); |
| out[14] = v[9]; |
| out[15] = _mm256_sub_epi32(_mm256_setzero_si256(), v[1]); |
| } else { |
| const int log_range_out = AOMMAX(16, bd + 6); |
| const __m256i clamp_lo_out = |
| _mm256_set1_epi32(-(1 << (log_range_out - 1))); |
| const __m256i clamp_hi_out = |
| _mm256_set1_epi32((1 << (log_range_out - 1)) - 1); |
| |
| neg_shift_avx2(v[0], v[8], out + 0, out + 1, &clamp_lo_out, &clamp_hi_out, |
| out_shift); |
| neg_shift_avx2(v[12], v[4], out + 2, out + 3, &clamp_lo_out, |
| &clamp_hi_out, out_shift); |
| neg_shift_avx2(v[6], v[14], out + 4, out + 5, &clamp_lo_out, |
| &clamp_hi_out, out_shift); |
| neg_shift_avx2(v[10], v[2], out + 6, out + 7, &clamp_lo_out, |
| &clamp_hi_out, out_shift); |
| neg_shift_avx2(v[3], v[11], out + 8, out + 9, &clamp_lo_out, |
| &clamp_hi_out, out_shift); |
| neg_shift_avx2(v[15], v[7], out + 10, out + 11, &clamp_lo_out, |
| &clamp_hi_out, out_shift); |
| neg_shift_avx2(v[5], v[13], out + 12, out + 13, &clamp_lo_out, |
| &clamp_hi_out, out_shift); |
| neg_shift_avx2(v[9], v[1], out + 14, out + 15, &clamp_lo_out, |
| &clamp_hi_out, out_shift); |
| } |
| } |
| } |
| |
| static void iadst16_low8_avx2(__m256i *in, __m256i *out, int bit, int do_cols, |
| int bd, int out_shift) { |
| const int32_t *cospi = cospi_arr(bit); |
| const __m256i cospi2 = _mm256_set1_epi32(cospi[2]); |
| const __m256i cospi62 = _mm256_set1_epi32(cospi[62]); |
| const __m256i cospi10 = _mm256_set1_epi32(cospi[10]); |
| const __m256i cospi54 = _mm256_set1_epi32(cospi[54]); |
| const __m256i cospi18 = _mm256_set1_epi32(cospi[18]); |
| const __m256i cospi46 = _mm256_set1_epi32(cospi[46]); |
| const __m256i cospi26 = _mm256_set1_epi32(cospi[26]); |
| const __m256i cospi38 = _mm256_set1_epi32(cospi[38]); |
| const __m256i cospi34 = _mm256_set1_epi32(cospi[34]); |
| const __m256i cospi30 = _mm256_set1_epi32(cospi[30]); |
| const __m256i cospi42 = _mm256_set1_epi32(cospi[42]); |
| const __m256i cospi22 = _mm256_set1_epi32(cospi[22]); |
| const __m256i cospi50 = _mm256_set1_epi32(cospi[50]); |
| const __m256i cospi14 = _mm256_set1_epi32(cospi[14]); |
| const __m256i cospi58 = _mm256_set1_epi32(cospi[58]); |
| const __m256i cospi6 = _mm256_set1_epi32(cospi[6]); |
| const __m256i cospi8 = _mm256_set1_epi32(cospi[8]); |
| const __m256i cospi56 = _mm256_set1_epi32(cospi[56]); |
| const __m256i cospi40 = _mm256_set1_epi32(cospi[40]); |
| const __m256i cospi24 = _mm256_set1_epi32(cospi[24]); |
| const __m256i cospim56 = _mm256_set1_epi32(-cospi[56]); |
| const __m256i cospim24 = _mm256_set1_epi32(-cospi[24]); |
| const __m256i cospi48 = _mm256_set1_epi32(cospi[48]); |
| const __m256i cospi16 = _mm256_set1_epi32(cospi[16]); |
| const __m256i cospim48 = _mm256_set1_epi32(-cospi[48]); |
| const __m256i cospi32 = _mm256_set1_epi32(cospi[32]); |
| const __m256i rnding = _mm256_set1_epi32(1 << (bit - 1)); |
| const int log_range = AOMMAX(16, bd + (do_cols ? 6 : 8)); |
| const __m256i clamp_lo = _mm256_set1_epi32(-(1 << (log_range - 1))); |
| const __m256i clamp_hi = _mm256_set1_epi32((1 << (log_range - 1)) - 1); |
| __m256i u[16], x, y; |
| |
| { |
| // stage 0 |
| // stage 1 |
| // stage 2 |
| __m256i zero = _mm256_setzero_si256(); |
| x = _mm256_mullo_epi32(in[0], cospi62); |
| u[0] = _mm256_add_epi32(x, rnding); |
| u[0] = _mm256_srai_epi32(u[0], bit); |
| |
| x = _mm256_mullo_epi32(in[0], cospi2); |
| u[1] = _mm256_sub_epi32(zero, x); |
| u[1] = _mm256_add_epi32(u[1], rnding); |
| u[1] = _mm256_srai_epi32(u[1], bit); |
| |
| x = _mm256_mullo_epi32(in[2], cospi54); |
| u[2] = _mm256_add_epi32(x, rnding); |
| u[2] = _mm256_srai_epi32(u[2], bit); |
| |
| x = _mm256_mullo_epi32(in[2], cospi10); |
| u[3] = _mm256_sub_epi32(zero, x); |
| u[3] = _mm256_add_epi32(u[3], rnding); |
| u[3] = _mm256_srai_epi32(u[3], bit); |
| |
| x = _mm256_mullo_epi32(in[4], cospi46); |
| u[4] = _mm256_add_epi32(x, rnding); |
| u[4] = _mm256_srai_epi32(u[4], bit); |
| |
| x = _mm256_mullo_epi32(in[4], cospi18); |
| u[5] = _mm256_sub_epi32(zero, x); |
| u[5] = _mm256_add_epi32(u[5], rnding); |
| u[5] = _mm256_srai_epi32(u[5], bit); |
| |
| x = _mm256_mullo_epi32(in[6], cospi38); |
| u[6] = _mm256_add_epi32(x, rnding); |
| u[6] = _mm256_srai_epi32(u[6], bit); |
| |
| x = _mm256_mullo_epi32(in[6], cospi26); |
| u[7] = _mm256_sub_epi32(zero, x); |
| u[7] = _mm256_add_epi32(u[7], rnding); |
| u[7] = _mm256_srai_epi32(u[7], bit); |
| |
| u[8] = _mm256_mullo_epi32(in[7], cospi34); |
| u[8] = _mm256_add_epi32(u[8], rnding); |
| u[8] = _mm256_srai_epi32(u[8], bit); |
| |
| u[9] = _mm256_mullo_epi32(in[7], cospi30); |
| u[9] = _mm256_add_epi32(u[9], rnding); |
| u[9] = _mm256_srai_epi32(u[9], bit); |
| |
| u[10] = _mm256_mullo_epi32(in[5], cospi42); |
| u[10] = _mm256_add_epi32(u[10], rnding); |
| u[10] = _mm256_srai_epi32(u[10], bit); |
| |
| u[11] = _mm256_mullo_epi32(in[5], cospi22); |
| u[11] = _mm256_add_epi32(u[11], rnding); |
| u[11] = _mm256_srai_epi32(u[11], bit); |
| |
| u[12] = _mm256_mullo_epi32(in[3], cospi50); |
| u[12] = _mm256_add_epi32(u[12], rnding); |
| u[12] = _mm256_srai_epi32(u[12], bit); |
| |
| u[13] = _mm256_mullo_epi32(in[3], cospi14); |
| u[13] = _mm256_add_epi32(u[13], rnding); |
| u[13] = _mm256_srai_epi32(u[13], bit); |
| |
| u[14] = _mm256_mullo_epi32(in[1], cospi58); |
| u[14] = _mm256_add_epi32(u[14], rnding); |
| u[14] = _mm256_srai_epi32(u[14], bit); |
| |
| u[15] = _mm256_mullo_epi32(in[1], cospi6); |
| u[15] = _mm256_add_epi32(u[15], rnding); |
| u[15] = _mm256_srai_epi32(u[15], bit); |
| |
| // stage 3 |
| addsub_avx2(u[0], u[8], &u[0], &u[8], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[1], u[9], &u[1], &u[9], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[2], u[10], &u[2], &u[10], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[3], u[11], &u[3], &u[11], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[4], u[12], &u[4], &u[12], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[5], u[13], &u[5], &u[13], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[6], u[14], &u[6], &u[14], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[7], u[15], &u[7], &u[15], &clamp_lo, &clamp_hi); |
| |
| // stage 4 |
| y = _mm256_mullo_epi32(u[8], cospi56); |
| x = _mm256_mullo_epi32(u[9], cospi56); |
| u[8] = _mm256_mullo_epi32(u[8], cospi8); |
| u[8] = _mm256_add_epi32(u[8], x); |
| u[8] = _mm256_add_epi32(u[8], rnding); |
| u[8] = _mm256_srai_epi32(u[8], bit); |
| |
| x = _mm256_mullo_epi32(u[9], cospi8); |
| u[9] = _mm256_sub_epi32(y, x); |
| u[9] = _mm256_add_epi32(u[9], rnding); |
| u[9] = _mm256_srai_epi32(u[9], bit); |
| |
| x = _mm256_mullo_epi32(u[11], cospi24); |
| y = _mm256_mullo_epi32(u[10], cospi24); |
| u[10] = _mm256_mullo_epi32(u[10], cospi40); |
| u[10] = _mm256_add_epi32(u[10], x); |
| u[10] = _mm256_add_epi32(u[10], rnding); |
| u[10] = _mm256_srai_epi32(u[10], bit); |
| |
| x = _mm256_mullo_epi32(u[11], cospi40); |
| u[11] = _mm256_sub_epi32(y, x); |
| u[11] = _mm256_add_epi32(u[11], rnding); |
| u[11] = _mm256_srai_epi32(u[11], bit); |
| |
| x = _mm256_mullo_epi32(u[13], cospi8); |
| y = _mm256_mullo_epi32(u[12], cospi8); |
| u[12] = _mm256_mullo_epi32(u[12], cospim56); |
| u[12] = _mm256_add_epi32(u[12], x); |
| u[12] = _mm256_add_epi32(u[12], rnding); |
| u[12] = _mm256_srai_epi32(u[12], bit); |
| |
| x = _mm256_mullo_epi32(u[13], cospim56); |
| u[13] = _mm256_sub_epi32(y, x); |
| u[13] = _mm256_add_epi32(u[13], rnding); |
| u[13] = _mm256_srai_epi32(u[13], bit); |
| |
| x = _mm256_mullo_epi32(u[15], cospi40); |
| y = _mm256_mullo_epi32(u[14], cospi40); |
| u[14] = _mm256_mullo_epi32(u[14], cospim24); |
| u[14] = _mm256_add_epi32(u[14], x); |
| u[14] = _mm256_add_epi32(u[14], rnding); |
| u[14] = _mm256_srai_epi32(u[14], bit); |
| |
| x = _mm256_mullo_epi32(u[15], cospim24); |
| u[15] = _mm256_sub_epi32(y, x); |
| u[15] = _mm256_add_epi32(u[15], rnding); |
| u[15] = _mm256_srai_epi32(u[15], bit); |
| |
| // stage 5 |
| addsub_avx2(u[0], u[4], &u[0], &u[4], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[1], u[5], &u[1], &u[5], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[2], u[6], &u[2], &u[6], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[3], u[7], &u[3], &u[7], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[8], u[12], &u[8], &u[12], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[9], u[13], &u[9], &u[13], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[10], u[14], &u[10], &u[14], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[11], u[15], &u[11], &u[15], &clamp_lo, &clamp_hi); |
| |
| // stage 6 |
| x = _mm256_mullo_epi32(u[5], cospi48); |
| y = _mm256_mullo_epi32(u[4], cospi48); |
| u[4] = _mm256_mullo_epi32(u[4], cospi16); |
| u[4] = _mm256_add_epi32(u[4], x); |
| u[4] = _mm256_add_epi32(u[4], rnding); |
| u[4] = _mm256_srai_epi32(u[4], bit); |
| |
| x = _mm256_mullo_epi32(u[5], cospi16); |
| u[5] = _mm256_sub_epi32(y, x); |
| u[5] = _mm256_add_epi32(u[5], rnding); |
| u[5] = _mm256_srai_epi32(u[5], bit); |
| |
| x = _mm256_mullo_epi32(u[7], cospi16); |
| y = _mm256_mullo_epi32(u[6], cospi16); |
| u[6] = _mm256_mullo_epi32(u[6], cospim48); |
| u[6] = _mm256_add_epi32(u[6], x); |
| u[6] = _mm256_add_epi32(u[6], rnding); |
| u[6] = _mm256_srai_epi32(u[6], bit); |
| |
| x = _mm256_mullo_epi32(u[7], cospim48); |
| u[7] = _mm256_sub_epi32(y, x); |
| u[7] = _mm256_add_epi32(u[7], rnding); |
| u[7] = _mm256_srai_epi32(u[7], bit); |
| |
| x = _mm256_mullo_epi32(u[13], cospi48); |
| y = _mm256_mullo_epi32(u[12], cospi48); |
| u[12] = _mm256_mullo_epi32(u[12], cospi16); |
| u[12] = _mm256_add_epi32(u[12], x); |
| u[12] = _mm256_add_epi32(u[12], rnding); |
| u[12] = _mm256_srai_epi32(u[12], bit); |
| |
| x = _mm256_mullo_epi32(u[13], cospi16); |
| u[13] = _mm256_sub_epi32(y, x); |
| u[13] = _mm256_add_epi32(u[13], rnding); |
| u[13] = _mm256_srai_epi32(u[13], bit); |
| |
| x = _mm256_mullo_epi32(u[15], cospi16); |
| y = _mm256_mullo_epi32(u[14], cospi16); |
| u[14] = _mm256_mullo_epi32(u[14], cospim48); |
| u[14] = _mm256_add_epi32(u[14], x); |
| u[14] = _mm256_add_epi32(u[14], rnding); |
| u[14] = _mm256_srai_epi32(u[14], bit); |
| |
| x = _mm256_mullo_epi32(u[15], cospim48); |
| u[15] = _mm256_sub_epi32(y, x); |
| u[15] = _mm256_add_epi32(u[15], rnding); |
| u[15] = _mm256_srai_epi32(u[15], bit); |
| |
| // stage 7 |
| addsub_avx2(u[0], u[2], &u[0], &u[2], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[1], u[3], &u[1], &u[3], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[4], u[6], &u[4], &u[6], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[5], u[7], &u[5], &u[7], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[8], u[10], &u[8], &u[10], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[9], u[11], &u[9], &u[11], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[12], u[14], &u[12], &u[14], &clamp_lo, &clamp_hi); |
| addsub_avx2(u[13], u[15], &u[13], &u[15], &clamp_lo, &clamp_hi); |
| |
| // stage 8 |
| y = _mm256_mullo_epi32(u[2], cospi32); |
| x = _mm256_mullo_epi32(u[3], cospi32); |
| u[2] = _mm256_add_epi32(y, x); |
| u[2] = _mm256_add_epi32(u[2], rnding); |
| u[2] = _mm256_srai_epi32(u[2], bit); |
| |
| u[3] = _mm256_sub_epi32(y, x); |
| u[3] = _mm256_add_epi32(u[3], rnding); |
| u[3] = _mm256_srai_epi32(u[3], bit); |
| y = _mm256_mullo_epi32(u[6], cospi32); |
| x = _mm256_mullo_epi32(u[7], cospi32); |
| u[6] = _mm256_add_epi32(y, x); |
| u[6] = _mm256_add_epi32(u[6], rnding); |
| u[6] = _mm256_srai_epi32(u[6], bit); |
| |
| u[7] = _mm256_sub_epi32(y, x); |
| u[7] = _mm256_add_epi32(u[7], rnding); |
| u[7] = _mm256_srai_epi32(u[7], bit); |
| |
| y = _mm256_mullo_epi32(u[10], cospi32); |
| x = _mm256_mullo_epi32(u[11], cospi32); |
| u[10] = _mm256_add_epi32(y, x); |
| u[10] = _mm256_add_epi32(u[10], rnding); |
| u[10] = _mm256_srai_epi32(u[10], bit); |
| |
| u[11] = _mm256_sub_epi32(y, x); |
| u[11] |
