| /* |
| * 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 "./av1_rtcd.h" |
| #include "./aom_config.h" |
| #include "av1/common/av1_inv_txfm1d_cfg.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 void transpose_32x32_8x8(const __m256i *in, __m256i *out) { |
| __m256i u0, u1, u2, u3, u4, u5, u6, u7; |
| __m256i x0, x1; |
| |
| u0 = _mm256_unpacklo_epi32(in[0], in[4]); |
| u1 = _mm256_unpackhi_epi32(in[0], in[4]); |
| |
| u2 = _mm256_unpacklo_epi32(in[8], in[12]); |
| u3 = _mm256_unpackhi_epi32(in[8], in[12]); |
| |
| u4 = _mm256_unpacklo_epi32(in[16], in[20]); |
| u5 = _mm256_unpackhi_epi32(in[16], in[20]); |
| |
| u6 = _mm256_unpacklo_epi32(in[24], in[28]); |
| u7 = _mm256_unpackhi_epi32(in[24], in[28]); |
| |
| x0 = _mm256_unpacklo_epi64(u0, u2); |
| x1 = _mm256_unpacklo_epi64(u4, u6); |
| out[0] = _mm256_permute2f128_si256(x0, x1, 0x20); |
| out[16] = _mm256_permute2f128_si256(x0, x1, 0x31); |
| |
| x0 = _mm256_unpackhi_epi64(u0, u2); |
| x1 = _mm256_unpackhi_epi64(u4, u6); |
| out[4] = _mm256_permute2f128_si256(x0, x1, 0x20); |
| out[20] = _mm256_permute2f128_si256(x0, x1, 0x31); |
| |
| x0 = _mm256_unpacklo_epi64(u1, u3); |
| x1 = _mm256_unpacklo_epi64(u5, u7); |
| out[8] = _mm256_permute2f128_si256(x0, x1, 0x20); |
| out[24] = _mm256_permute2f128_si256(x0, x1, 0x31); |
| |
| x0 = _mm256_unpackhi_epi64(u1, u3); |
| x1 = _mm256_unpackhi_epi64(u5, u7); |
| out[12] = _mm256_permute2f128_si256(x0, x1, 0x20); |
| out[28] = _mm256_permute2f128_si256(x0, x1, 0x31); |
| } |
| |
| static void transpose_32x32_16x16(const __m256i *in, __m256i *out) { |
| transpose_32x32_8x8(&in[0], &out[0]); |
| transpose_32x32_8x8(&in[1], &out[32]); |
| transpose_32x32_8x8(&in[32], &out[1]); |
| transpose_32x32_8x8(&in[33], &out[33]); |
| } |
| |
| static void transpose_32x32(const __m256i *in, __m256i *out) { |
| transpose_32x32_16x16(&in[0], &out[0]); |
| transpose_32x32_16x16(&in[2], &out[64]); |
| transpose_32x32_16x16(&in[64], &out[2]); |
| transpose_32x32_16x16(&in[66], &out[66]); |
| } |
| |
| static void load_buffer_32x32(const int32_t *coeff, __m256i *in) { |
| int i; |
| for (i = 0; i < 128; ++i) { |
| in[i] = _mm256_loadu_si256((const __m256i *)coeff); |
| coeff += 8; |
| } |
| } |
| |
| static void round_shift_32x32(__m256i *in, int shift) { |
| __m256i rnding = _mm256_set1_epi32(1 << (shift - 1)); |
| int i = 0; |
| |
| while (i < 128) { |
| in[i] = _mm256_add_epi32(in[i], rnding); |
| in[i] = _mm256_srai_epi32(in[i], shift); |
| i++; |
| } |
| } |
| |
| static __m256i highbd_clamp_epi32(__m256i x, 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(x, max); |
| clamped = _mm256_andnot_si256(mask, x); |
| 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 void write_buffer_32x32(__m256i *in, uint16_t *output, int stride, |
| int fliplr, int flipud, int shift, int bd) { |
| __m256i u0, u1, x0, x1, x2, x3, v0, v1, v2, v3; |
| const __m256i zero = _mm256_setzero_si256(); |
| int i = 0; |
| (void)fliplr; |
| (void)flipud; |
| |
| round_shift_32x32(in, shift); |
| |
| while (i < 128) { |
| u0 = _mm256_loadu_si256((const __m256i *)output); |
| u1 = _mm256_loadu_si256((const __m256i *)(output + 16)); |
| |
| x0 = _mm256_unpacklo_epi16(u0, zero); |
| x1 = _mm256_unpackhi_epi16(u0, zero); |
| x2 = _mm256_unpacklo_epi16(u1, zero); |
| x3 = _mm256_unpackhi_epi16(u1, zero); |
| |
| v0 = _mm256_permute2f128_si256(in[i], in[i + 1], 0x20); |
| v1 = _mm256_permute2f128_si256(in[i], in[i + 1], 0x31); |
| v2 = _mm256_permute2f128_si256(in[i + 2], in[i + 3], 0x20); |
| v3 = _mm256_permute2f128_si256(in[i + 2], in[i + 3], 0x31); |
| |
| v0 = _mm256_add_epi32(v0, x0); |
| v1 = _mm256_add_epi32(v1, x1); |
| v2 = _mm256_add_epi32(v2, x2); |
| v3 = _mm256_add_epi32(v3, x3); |
| |
| v0 = _mm256_packus_epi32(v0, v1); |
| v2 = _mm256_packus_epi32(v2, v3); |
| |
| v0 = highbd_clamp_epi32(v0, bd); |
| v2 = highbd_clamp_epi32(v2, bd); |
| |
| _mm256_storeu_si256((__m256i *)output, v0); |
| _mm256_storeu_si256((__m256i *)(output + 16), v2); |
| output += stride; |
| i += 4; |
| } |
| } |
| |
| 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 idct32_avx2(__m256i *in, __m256i *out, int bit) { |
| 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)); |
| __m256i bf1[32], bf0[32]; |
| int col; |
| |
| for (col = 0; col < 4; ++col) { |
| // stage 0 |
| // stage 1 |
| bf1[0] = in[0 * 4 + col]; |
| bf1[1] = in[16 * 4 + col]; |
| bf1[2] = in[8 * 4 + col]; |
| bf1[3] = in[24 * 4 + col]; |
| bf1[4] = in[4 * 4 + col]; |
| bf1[5] = in[20 * 4 + col]; |
| bf1[6] = in[12 * 4 + col]; |
| bf1[7] = in[28 * 4 + col]; |
| bf1[8] = in[2 * 4 + col]; |
| bf1[9] = in[18 * 4 + col]; |
| bf1[10] = in[10 * 4 + col]; |
| bf1[11] = in[26 * 4 + col]; |
| bf1[12] = in[6 * 4 + col]; |
| bf1[13] = in[22 * 4 + col]; |
| bf1[14] = in[14 * 4 + col]; |
| bf1[15] = in[30 * 4 + col]; |
| bf1[16] = in[1 * 4 + col]; |
| bf1[17] = in[17 * 4 + col]; |
| bf1[18] = in[9 * 4 + col]; |
| bf1[19] = in[25 * 4 + col]; |
| bf1[20] = in[5 * 4 + col]; |
| bf1[21] = in[21 * 4 + col]; |
| bf1[22] = in[13 * 4 + col]; |
| bf1[23] = in[29 * 4 + col]; |
| bf1[24] = in[3 * 4 + col]; |
| bf1[25] = in[19 * 4 + col]; |
| bf1[26] = in[11 * 4 + col]; |
| bf1[27] = in[27 * 4 + col]; |
| bf1[28] = in[7 * 4 + col]; |
| bf1[29] = in[23 * 4 + col]; |
| bf1[30] = in[15 * 4 + col]; |
| bf1[31] = in[31 * 4 + col]; |
| |
| // 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); |
| bf1[16] = _mm256_add_epi32(bf0[16], bf0[17]); |
| bf1[17] = _mm256_sub_epi32(bf0[16], bf0[17]); |
| bf1[18] = _mm256_sub_epi32(bf0[19], bf0[18]); |
| bf1[19] = _mm256_add_epi32(bf0[18], bf0[19]); |
| bf1[20] = _mm256_add_epi32(bf0[20], bf0[21]); |
| bf1[21] = _mm256_sub_epi32(bf0[20], bf0[21]); |
| bf1[22] = _mm256_sub_epi32(bf0[23], bf0[22]); |
| bf1[23] = _mm256_add_epi32(bf0[22], bf0[23]); |
| bf1[24] = _mm256_add_epi32(bf0[24], bf0[25]); |
| bf1[25] = _mm256_sub_epi32(bf0[24], bf0[25]); |
| bf1[26] = _mm256_sub_epi32(bf0[27], bf0[26]); |
| bf1[27] = _mm256_add_epi32(bf0[26], bf0[27]); |
| bf1[28] = _mm256_add_epi32(bf0[28], bf0[29]); |
| bf1[29] = _mm256_sub_epi32(bf0[28], bf0[29]); |
| bf1[30] = _mm256_sub_epi32(bf0[31], bf0[30]); |
| bf1[31] = _mm256_add_epi32(bf0[30], bf0[31]); |
| |
| // 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); |
| bf0[8] = _mm256_add_epi32(bf1[8], bf1[9]); |
| bf0[9] = _mm256_sub_epi32(bf1[8], bf1[9]); |
| bf0[10] = _mm256_sub_epi32(bf1[11], bf1[10]); |
| bf0[11] = _mm256_add_epi32(bf1[10], bf1[11]); |
| bf0[12] = _mm256_add_epi32(bf1[12], bf1[13]); |
| bf0[13] = _mm256_sub_epi32(bf1[12], bf1[13]); |
| bf0[14] = _mm256_sub_epi32(bf1[15], bf1[14]); |
| bf0[15] = _mm256_add_epi32(bf1[14], bf1[15]); |
| 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); |
| bf1[4] = _mm256_add_epi32(bf0[4], bf0[5]); |
| bf1[5] = _mm256_sub_epi32(bf0[4], bf0[5]); |
| bf1[6] = _mm256_sub_epi32(bf0[7], bf0[6]); |
| bf1[7] = _mm256_add_epi32(bf0[6], bf0[7]); |
| 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]; |
| bf1[16] = _mm256_add_epi32(bf0[16], bf0[19]); |
| bf1[17] = _mm256_add_epi32(bf0[17], bf0[18]); |
| bf1[18] = _mm256_sub_epi32(bf0[17], bf0[18]); |
| bf1[19] = _mm256_sub_epi32(bf0[16], bf0[19]); |
| bf1[20] = _mm256_sub_epi32(bf0[23], bf0[20]); |
| bf1[21] = _mm256_sub_epi32(bf0[22], bf0[21]); |
| bf1[22] = _mm256_add_epi32(bf0[21], bf0[22]); |
| bf1[23] = _mm256_add_epi32(bf0[20], bf0[23]); |
| bf1[24] = _mm256_add_epi32(bf0[24], bf0[27]); |
| bf1[25] = _mm256_add_epi32(bf0[25], bf0[26]); |
| bf1[26] = _mm256_sub_epi32(bf0[25], bf0[26]); |
| bf1[27] = _mm256_sub_epi32(bf0[24], bf0[27]); |
| bf1[28] = _mm256_sub_epi32(bf0[31], bf0[28]); |
| bf1[29] = _mm256_sub_epi32(bf0[30], bf0[29]); |
| bf1[30] = _mm256_add_epi32(bf0[29], bf0[30]); |
| bf1[31] = _mm256_add_epi32(bf0[28], bf0[31]); |
| |
| // stage 6 |
| bf0[0] = _mm256_add_epi32(bf1[0], bf1[3]); |
| bf0[1] = _mm256_add_epi32(bf1[1], bf1[2]); |
| bf0[2] = _mm256_sub_epi32(bf1[1], bf1[2]); |
| bf0[3] = _mm256_sub_epi32(bf1[0], bf1[3]); |
| 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]; |
| bf0[8] = _mm256_add_epi32(bf1[8], bf1[11]); |
| bf0[9] = _mm256_add_epi32(bf1[9], bf1[10]); |
| bf0[10] = _mm256_sub_epi32(bf1[9], bf1[10]); |
| bf0[11] = _mm256_sub_epi32(bf1[8], bf1[11]); |
| bf0[12] = _mm256_sub_epi32(bf1[15], bf1[12]); |
| bf0[13] = _mm256_sub_epi32(bf1[14], bf1[13]); |
| bf0[14] = _mm256_add_epi32(bf1[13], bf1[14]); |
| bf0[15] = _mm256_add_epi32(bf1[12], bf1[15]); |
| 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 |
| bf1[0] = _mm256_add_epi32(bf0[0], bf0[7]); |
| bf1[1] = _mm256_add_epi32(bf0[1], bf0[6]); |
| bf1[2] = _mm256_add_epi32(bf0[2], bf0[5]); |
| bf1[3] = _mm256_add_epi32(bf0[3], bf0[4]); |
| bf1[4] = _mm256_sub_epi32(bf0[3], bf0[4]); |
| bf1[5] = _mm256_sub_epi32(bf0[2], bf0[5]); |
| bf1[6] = _mm256_sub_epi32(bf0[1], bf0[6]); |
| bf1[7] = _mm256_sub_epi32(bf0[0], bf0[7]); |
| 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]; |
| bf1[16] = _mm256_add_epi32(bf0[16], bf0[23]); |
| bf1[17] = _mm256_add_epi32(bf0[17], bf0[22]); |
| bf1[18] = _mm256_add_epi32(bf0[18], bf0[21]); |
| bf1[19] = _mm256_add_epi32(bf0[19], bf0[20]); |
| bf1[20] = _mm256_sub_epi32(bf0[19], bf0[20]); |
| bf1[21] = _mm256_sub_epi32(bf0[18], bf0[21]); |
| bf1[22] = _mm256_sub_epi32(bf0[17], bf0[22]); |
| bf1[23] = _mm256_sub_epi32(bf0[16], bf0[23]); |
| bf1[24] = _mm256_sub_epi32(bf0[31], bf0[24]); |
| bf1[25] = _mm256_sub_epi32(bf0[30], bf0[25]); |
| bf1[26] = _mm256_sub_epi32(bf0[29], bf0[26]); |
| bf1[27] = _mm256_sub_epi32(bf0[28], bf0[27]); |
| bf1[28] = _mm256_add_epi32(bf0[27], bf0[28]); |
| bf1[29] = _mm256_add_epi32(bf0[26], bf0[29]); |
| bf1[30] = _mm256_add_epi32(bf0[25], bf0[30]); |
| bf1[31] = _mm256_add_epi32(bf0[24], bf0[31]); |
| |
| // stage 8 |
| bf0[0] = _mm256_add_epi32(bf1[0], bf1[15]); |
| bf0[1] = _mm256_add_epi32(bf1[1], bf1[14]); |
| bf0[2] = _mm256_add_epi32(bf1[2], bf1[13]); |
| bf0[3] = _mm256_add_epi32(bf1[3], bf1[12]); |
| bf0[4] = _mm256_add_epi32(bf1[4], bf1[11]); |
| bf0[5] = _mm256_add_epi32(bf1[5], bf1[10]); |
| bf0[6] = _mm256_add_epi32(bf1[6], bf1[9]); |
| bf0[7] = _mm256_add_epi32(bf1[7], bf1[8]); |
| bf0[8] = _mm256_sub_epi32(bf1[7], bf1[8]); |
| bf0[9] = _mm256_sub_epi32(bf1[6], bf1[9]); |
| bf0[10] = _mm256_sub_epi32(bf1[5], bf1[10]); |
| bf0[11] = _mm256_sub_epi32(bf1[4], bf1[11]); |
| bf0[12] = _mm256_sub_epi32(bf1[3], bf1[12]); |
| bf0[13] = _mm256_sub_epi32(bf1[2], bf1[13]); |
| bf0[14] = _mm256_sub_epi32(bf1[1], bf1[14]); |
| bf0[15] = _mm256_sub_epi32(bf1[0], bf1[15]); |
| 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 |
| out[0 * 4 + col] = _mm256_add_epi32(bf0[0], bf0[31]); |
| out[1 * 4 + col] = _mm256_add_epi32(bf0[1], bf0[30]); |
| out[2 * 4 + col] = _mm256_add_epi32(bf0[2], bf0[29]); |
| out[3 * 4 + col] = _mm256_add_epi32(bf0[3], bf0[28]); |
| out[4 * 4 + col] = _mm256_add_epi32(bf0[4], bf0[27]); |
| out[5 * 4 + col] = _mm256_add_epi32(bf0[5], bf0[26]); |
| out[6 * 4 + col] = _mm256_add_epi32(bf0[6], bf0[25]); |
| out[7 * 4 + col] = _mm256_add_epi32(bf0[7], bf0[24]); |
| out[8 * 4 + col] = _mm256_add_epi32(bf0[8], bf0[23]); |
| out[9 * 4 + col] = _mm256_add_epi32(bf0[9], bf0[22]); |
| out[10 * 4 + col] = _mm256_add_epi32(bf0[10], bf0[21]); |
| out[11 * 4 + col] = _mm256_add_epi32(bf0[11], bf0[20]); |
| out[12 * 4 + col] = _mm256_add_epi32(bf0[12], bf0[19]); |
| out[13 * 4 + col] = _mm256_add_epi32(bf0[13], bf0[18]); |
| out[14 * 4 + col] = _mm256_add_epi32(bf0[14], bf0[17]); |
| out[15 * 4 + col] = _mm256_add_epi32(bf0[15], bf0[16]); |
| out[16 * 4 + col] = _mm256_sub_epi32(bf0[15], bf0[16]); |
| out[17 * 4 + col] = _mm256_sub_epi32(bf0[14], bf0[17]); |
| out[18 * 4 + col] = _mm256_sub_epi32(bf0[13], bf0[18]); |
| out[19 * 4 + col] = _mm256_sub_epi32(bf0[12], bf0[19]); |
| out[20 * 4 + col] = _mm256_sub_epi32(bf0[11], bf0[20]); |
| out[21 * 4 + col] = _mm256_sub_epi32(bf0[10], bf0[21]); |
| out[22 * 4 + col] = _mm256_sub_epi32(bf0[9], bf0[22]); |
| out[23 * 4 + col] = _mm256_sub_epi32(bf0[8], bf0[23]); |
| out[24 * 4 + col] = _mm256_sub_epi32(bf0[7], bf0[24]); |
| out[25 * 4 + col] = _mm256_sub_epi32(bf0[6], bf0[25]); |
| out[26 * 4 + col] = _mm256_sub_epi32(bf0[5], bf0[26]); |
| out[27 * 4 + col] = _mm256_sub_epi32(bf0[4], bf0[27]); |
| out[28 * 4 + col] = _mm256_sub_epi32(bf0[3], bf0[28]); |
| out[29 * 4 + col] = _mm256_sub_epi32(bf0[2], bf0[29]); |
| out[30 * 4 + col] = _mm256_sub_epi32(bf0[1], bf0[30]); |
| out[31 * 4 + col] = _mm256_sub_epi32(bf0[0], bf0[31]); |
| } |
| } |
| |
| void av1_inv_txfm2d_add_32x32_avx2(const int32_t *coeff, uint16_t *output, |
| int stride, int tx_type, int bd) { |
| __m256i in[128], out[128]; |
| const TXFM_1D_CFG *row_cfg = NULL; |
| const TXFM_1D_CFG *col_cfg = NULL; |
| |
| switch (tx_type) { |
| case DCT_DCT: |
| row_cfg = &inv_txfm_1d_row_cfg_dct_32; |
| col_cfg = &inv_txfm_1d_col_cfg_dct_32; |
| load_buffer_32x32(coeff, in); |
| transpose_32x32(in, out); |
| idct32_avx2(out, in, row_cfg->cos_bit[2]); |
| round_shift_32x32(in, -row_cfg->shift[0]); |
| transpose_32x32(in, out); |
| idct32_avx2(out, in, col_cfg->cos_bit[2]); |
| write_buffer_32x32(in, output, stride, 0, 0, -row_cfg->shift[1], bd); |
| break; |
| default: assert(0); |
| } |
| } |
