blob: a81378cfe362cc073ff3c2c298061b4226197fdc [file] [log] [blame]
/*
* Copyright (c) 2018, 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> /*AVX2*/
#include "config/aom_config.h"
#include "config/av1_rtcd.h"
#include "av1/common/av1_txfm.h"
#include "av1/encoder/av1_fwd_txfm1d_cfg.h"
#include "aom_dsp/txfm_common.h"
#include "aom_ports/mem.h"
#include "aom_dsp/x86/txfm_common_sse2.h"
#include "aom_dsp/x86/txfm_common_avx2.h"
static INLINE void load_buffer_8x8_avx2(const int16_t *input, __m256i *out,
int stride, int flipud, int fliplr,
int shift) {
__m128i out1[8];
if (!flipud) {
out1[0] = _mm_load_si128((const __m128i *)(input + 0 * stride));
out1[1] = _mm_load_si128((const __m128i *)(input + 1 * stride));
out1[2] = _mm_load_si128((const __m128i *)(input + 2 * stride));
out1[3] = _mm_load_si128((const __m128i *)(input + 3 * stride));
out1[4] = _mm_load_si128((const __m128i *)(input + 4 * stride));
out1[5] = _mm_load_si128((const __m128i *)(input + 5 * stride));
out1[6] = _mm_load_si128((const __m128i *)(input + 6 * stride));
out1[7] = _mm_load_si128((const __m128i *)(input + 7 * stride));
} else {
out1[7] = _mm_load_si128((const __m128i *)(input + 0 * stride));
out1[6] = _mm_load_si128((const __m128i *)(input + 1 * stride));
out1[5] = _mm_load_si128((const __m128i *)(input + 2 * stride));
out1[4] = _mm_load_si128((const __m128i *)(input + 3 * stride));
out1[3] = _mm_load_si128((const __m128i *)(input + 4 * stride));
out1[2] = _mm_load_si128((const __m128i *)(input + 5 * stride));
out1[1] = _mm_load_si128((const __m128i *)(input + 6 * stride));
out1[0] = _mm_load_si128((const __m128i *)(input + 7 * stride));
}
if (!fliplr) {
out[0] = _mm256_cvtepi16_epi32(out1[0]);
out[1] = _mm256_cvtepi16_epi32(out1[1]);
out[2] = _mm256_cvtepi16_epi32(out1[2]);
out[3] = _mm256_cvtepi16_epi32(out1[3]);
out[4] = _mm256_cvtepi16_epi32(out1[4]);
out[5] = _mm256_cvtepi16_epi32(out1[5]);
out[6] = _mm256_cvtepi16_epi32(out1[6]);
out[7] = _mm256_cvtepi16_epi32(out1[7]);
} else {
out[0] = _mm256_cvtepi16_epi32(mm_reverse_epi16(out1[0]));
out[1] = _mm256_cvtepi16_epi32(mm_reverse_epi16(out1[1]));
out[2] = _mm256_cvtepi16_epi32(mm_reverse_epi16(out1[2]));
out[3] = _mm256_cvtepi16_epi32(mm_reverse_epi16(out1[3]));
out[4] = _mm256_cvtepi16_epi32(mm_reverse_epi16(out1[4]));
out[5] = _mm256_cvtepi16_epi32(mm_reverse_epi16(out1[5]));
out[6] = _mm256_cvtepi16_epi32(mm_reverse_epi16(out1[6]));
out[7] = _mm256_cvtepi16_epi32(mm_reverse_epi16(out1[7]));
}
out[0] = _mm256_slli_epi32(out[0], shift);
out[1] = _mm256_slli_epi32(out[1], shift);
out[2] = _mm256_slli_epi32(out[2], shift);
out[3] = _mm256_slli_epi32(out[3], shift);
out[4] = _mm256_slli_epi32(out[4], shift);
out[5] = _mm256_slli_epi32(out[5], shift);
out[6] = _mm256_slli_epi32(out[6], shift);
out[7] = _mm256_slli_epi32(out[7], shift);
}
static INLINE void col_txfm_8x8_rounding(__m256i *in, int shift) {
const __m256i rounding = _mm256_set1_epi32(1 << (shift - 1));
in[0] = _mm256_add_epi32(in[0], rounding);
in[1] = _mm256_add_epi32(in[1], rounding);
in[2] = _mm256_add_epi32(in[2], rounding);
in[3] = _mm256_add_epi32(in[3], rounding);
in[4] = _mm256_add_epi32(in[4], rounding);
in[5] = _mm256_add_epi32(in[5], rounding);
in[6] = _mm256_add_epi32(in[6], rounding);
in[7] = _mm256_add_epi32(in[7], rounding);
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);
in[4] = _mm256_srai_epi32(in[4], shift);
in[5] = _mm256_srai_epi32(in[5], shift);
in[6] = _mm256_srai_epi32(in[6], shift);
in[7] = _mm256_srai_epi32(in[7], shift);
}
static INLINE void load_buffer_8x16_avx2(const int16_t *input, __m256i *out,
int stride, int flipud, int fliplr,
int shift) {
const int16_t *topL = input;
const int16_t *botL = input + 8 * stride;
const int16_t *tmp;
if (flipud) {
tmp = topL;
topL = botL;
botL = tmp;
}
load_buffer_8x8_avx2(topL, out, stride, flipud, fliplr, shift);
load_buffer_8x8_avx2(botL, out + 8, stride, flipud, fliplr, shift);
}
static INLINE void load_buffer_16xn_avx2(const int16_t *input, __m256i *out,
int stride, int height, int outstride,
int flipud, int fliplr) {
__m256i out1[64];
if (!flipud) {
for (int i = 0; i < height; i++) {
out1[i] = _mm256_loadu_si256((const __m256i *)(input + i * stride));
}
} else {
for (int i = 0; i < height; i++) {
out1[(height - 1) - i] =
_mm256_loadu_si256((const __m256i *)(input + i * stride));
}
}
if (!fliplr) {
for (int i = 0; i < height; i++) {
out[i * outstride] =
_mm256_cvtepi16_epi32(_mm256_castsi256_si128(out1[i]));
out[i * outstride + 1] =
_mm256_cvtepi16_epi32(_mm256_extractf128_si256(out1[i], 1));
}
} else {
for (int i = 0; i < height; i++) {
out[i * outstride + 1] = _mm256_cvtepi16_epi32(
mm_reverse_epi16(_mm256_castsi256_si128(out1[i])));
out[i * outstride + 0] = _mm256_cvtepi16_epi32(
mm_reverse_epi16(_mm256_extractf128_si256(out1[i], 1)));
}
}
}
static void fwd_txfm_transpose_8x8_avx2(const __m256i *in, __m256i *out,
const int instride,
const int outstride) {
__m256i u0, u1, u2, u3, u4, u5, u6, u7;
__m256i x0, x1;
u0 = _mm256_unpacklo_epi32(in[0 * instride], in[1 * instride]);
u1 = _mm256_unpackhi_epi32(in[0 * instride], in[1 * instride]);
u2 = _mm256_unpacklo_epi32(in[2 * instride], in[3 * instride]);
u3 = _mm256_unpackhi_epi32(in[2 * instride], in[3 * instride]);
u4 = _mm256_unpacklo_epi32(in[4 * instride], in[5 * instride]);
u5 = _mm256_unpackhi_epi32(in[4 * instride], in[5 * instride]);
u6 = _mm256_unpacklo_epi32(in[6 * instride], in[7 * instride]);
u7 = _mm256_unpackhi_epi32(in[6 * instride], in[7 * instride]);
x0 = _mm256_unpacklo_epi64(u0, u2);
x1 = _mm256_unpacklo_epi64(u4, u6);
out[0 * outstride] = _mm256_permute2f128_si256(x0, x1, 0x20);
out[4 * outstride] = _mm256_permute2f128_si256(x0, x1, 0x31);
x0 = _mm256_unpackhi_epi64(u0, u2);
x1 = _mm256_unpackhi_epi64(u4, u6);
out[1 * outstride] = _mm256_permute2f128_si256(x0, x1, 0x20);
out[5 * outstride] = _mm256_permute2f128_si256(x0, x1, 0x31);
x0 = _mm256_unpacklo_epi64(u1, u3);
x1 = _mm256_unpacklo_epi64(u5, u7);
out[2 * outstride] = _mm256_permute2f128_si256(x0, x1, 0x20);
out[6 * outstride] = _mm256_permute2f128_si256(x0, x1, 0x31);
x0 = _mm256_unpackhi_epi64(u1, u3);
x1 = _mm256_unpackhi_epi64(u5, u7);
out[3 * outstride] = _mm256_permute2f128_si256(x0, x1, 0x20);
out[7 * outstride] = _mm256_permute2f128_si256(x0, x1, 0x31);
}
static INLINE void round_shift_32_8xn_avx2(__m256i *in, int size, int bit,
int stride) {
if (bit < 0) {
bit = -bit;
__m256i round = _mm256_set1_epi32(1 << (bit - 1));
for (int i = 0; i < size; ++i) {
in[stride * i] = _mm256_add_epi32(in[stride * i], round);
in[stride * i] = _mm256_srai_epi32(in[stride * i], bit);
}
} else if (bit > 0) {
for (int i = 0; i < size; ++i) {
in[stride * i] = _mm256_slli_epi32(in[stride * i], bit);
}
}
}
static INLINE void store_buffer_avx2(const __m256i *const in, int32_t *out,
const int stride, const int out_size) {
for (int i = 0; i < out_size; ++i) {
_mm256_store_si256((__m256i *)(out), in[i]);
out += stride;
}
}
static INLINE void fwd_txfm_transpose_16x16_avx2(const __m256i *in,
__m256i *out) {
fwd_txfm_transpose_8x8_avx2(&in[0], &out[0], 2, 2);
fwd_txfm_transpose_8x8_avx2(&in[1], &out[16], 2, 2);
fwd_txfm_transpose_8x8_avx2(&in[16], &out[1], 2, 2);
fwd_txfm_transpose_8x8_avx2(&in[17], &out[17], 2, 2);
}
static INLINE __m256i av1_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;
}
#define btf_32_avx2_type0(w0, w1, in0, in1, out0, out1, bit) \
do { \
const __m256i ww0 = _mm256_set1_epi32(w0); \
const __m256i ww1 = _mm256_set1_epi32(w1); \
const __m256i in0_w0 = _mm256_mullo_epi32(in0, ww0); \
const __m256i in1_w1 = _mm256_mullo_epi32(in1, ww1); \
out0 = _mm256_add_epi32(in0_w0, in1_w1); \
round_shift_32_8xn_avx2(&out0, 1, -bit, 1); \
const __m256i in0_w1 = _mm256_mullo_epi32(in0, ww1); \
const __m256i in1_w0 = _mm256_mullo_epi32(in1, ww0); \
out1 = _mm256_sub_epi32(in0_w1, in1_w0); \
round_shift_32_8xn_avx2(&out1, 1, -bit, 1); \
} while (0)
#define btf_32_type0_avx2_new(ww0, ww1, in0, in1, out0, out1, r, bit) \
do { \
const __m256i in0_w0 = _mm256_mullo_epi32(in0, ww0); \
const __m256i in1_w1 = _mm256_mullo_epi32(in1, ww1); \
out0 = _mm256_add_epi32(in0_w0, in1_w1); \
out0 = _mm256_add_epi32(out0, r); \
out0 = _mm256_srai_epi32(out0, bit); \
const __m256i in0_w1 = _mm256_mullo_epi32(in0, ww1); \
const __m256i in1_w0 = _mm256_mullo_epi32(in1, ww0); \
out1 = _mm256_sub_epi32(in0_w1, in1_w0); \
out1 = _mm256_add_epi32(out1, r); \
out1 = _mm256_srai_epi32(out1, bit); \
} while (0)
typedef void (*transform_1d_avx2)(__m256i *in, __m256i *out,
const int8_t cos_bit, int instride,
int outstride);
static void fdct8_avx2(__m256i *in, __m256i *out, const int8_t bit,
const int col_num, const int outstride) {
const int32_t *cospi = cospi_arr(bit);
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 cospi16 = _mm256_set1_epi32(cospi[16]);
const __m256i cospi56 = _mm256_set1_epi32(cospi[56]);
const __m256i cospi8 = _mm256_set1_epi32(cospi[8]);
const __m256i cospi24 = _mm256_set1_epi32(cospi[24]);
const __m256i cospi40 = _mm256_set1_epi32(cospi[40]);
const __m256i rnding = _mm256_set1_epi32(1 << (bit - 1));
__m256i u[8], v[8];
for (int col = 0; col < col_num; ++col) {
u[0] = _mm256_add_epi32(in[0 * col_num + col], in[7 * col_num + col]);
v[7] = _mm256_sub_epi32(in[0 * col_num + col], in[7 * col_num + col]);
u[1] = _mm256_add_epi32(in[1 * col_num + col], in[6 * col_num + col]);
u[6] = _mm256_sub_epi32(in[1 * col_num + col], in[6 * col_num + col]);
u[2] = _mm256_add_epi32(in[2 * col_num + col], in[5 * col_num + col]);
u[5] = _mm256_sub_epi32(in[2 * col_num + col], in[5 * col_num + col]);
u[3] = _mm256_add_epi32(in[3 * col_num + col], in[4 * col_num + col]);
v[4] = _mm256_sub_epi32(in[3 * col_num + col], in[4 * col_num + col]);
v[0] = _mm256_add_epi32(u[0], u[3]);
v[3] = _mm256_sub_epi32(u[0], u[3]);
v[1] = _mm256_add_epi32(u[1], u[2]);
v[2] = _mm256_sub_epi32(u[1], u[2]);
v[5] = _mm256_mullo_epi32(u[5], cospim32);
v[6] = _mm256_mullo_epi32(u[6], cospi32);
v[5] = _mm256_add_epi32(v[5], v[6]);
v[5] = _mm256_add_epi32(v[5], rnding);
v[5] = _mm256_srai_epi32(v[5], bit);
u[0] = _mm256_mullo_epi32(u[5], cospi32);
v[6] = _mm256_mullo_epi32(u[6], cospim32);
v[6] = _mm256_sub_epi32(u[0], v[6]);
v[6] = _mm256_add_epi32(v[6], rnding);
v[6] = _mm256_srai_epi32(v[6], bit);
// stage 3
// type 0
v[0] = _mm256_mullo_epi32(v[0], cospi32);
v[1] = _mm256_mullo_epi32(v[1], cospi32);
u[0] = _mm256_add_epi32(v[0], v[1]);
u[0] = _mm256_add_epi32(u[0], rnding);
u[0] = _mm256_srai_epi32(u[0], bit);
u[1] = _mm256_sub_epi32(v[0], v[1]);
u[1] = _mm256_add_epi32(u[1], rnding);
u[1] = _mm256_srai_epi32(u[1], bit);
// type 1
v[0] = _mm256_mullo_epi32(v[2], cospi48);
v[1] = _mm256_mullo_epi32(v[3], cospi16);
u[2] = _mm256_add_epi32(v[0], v[1]);
u[2] = _mm256_add_epi32(u[2], rnding);
u[2] = _mm256_srai_epi32(u[2], bit);
v[0] = _mm256_mullo_epi32(v[2], cospi16);
v[1] = _mm256_mullo_epi32(v[3], cospi48);
u[3] = _mm256_sub_epi32(v[1], v[0]);
u[3] = _mm256_add_epi32(u[3], rnding);
u[3] = _mm256_srai_epi32(u[3], bit);
u[4] = _mm256_add_epi32(v[4], v[5]);
u[5] = _mm256_sub_epi32(v[4], v[5]);
u[6] = _mm256_sub_epi32(v[7], v[6]);
u[7] = _mm256_add_epi32(v[7], v[6]);
// stage 4
// stage 5
v[0] = _mm256_mullo_epi32(u[4], cospi56);
v[1] = _mm256_mullo_epi32(u[7], cospi8);
v[0] = _mm256_add_epi32(v[0], v[1]);
v[0] = _mm256_add_epi32(v[0], rnding);
out[1 * outstride + col] = _mm256_srai_epi32(v[0], bit); // buf0[4]
v[0] = _mm256_mullo_epi32(u[4], cospi8);
v[1] = _mm256_mullo_epi32(u[7], cospi56);
v[0] = _mm256_sub_epi32(v[1], v[0]);
v[0] = _mm256_add_epi32(v[0], rnding);
out[7 * outstride + col] = _mm256_srai_epi32(v[0], bit); // buf0[7]
v[0] = _mm256_mullo_epi32(u[5], cospi24);
v[1] = _mm256_mullo_epi32(u[6], cospi40);
v[0] = _mm256_add_epi32(v[0], v[1]);
v[0] = _mm256_add_epi32(v[0], rnding);
out[5 * outstride + col] = _mm256_srai_epi32(v[0], bit); // buf0[5]
v[0] = _mm256_mullo_epi32(u[5], cospi40);
v[1] = _mm256_mullo_epi32(u[6], cospi24);
v[0] = _mm256_sub_epi32(v[1], v[0]);
v[0] = _mm256_add_epi32(v[0], rnding);
out[3 * outstride + col] = _mm256_srai_epi32(v[0], bit); // buf0[6]
out[0 * outstride + col] = u[0]; // buf0[0]
out[4 * outstride + col] = u[1]; // buf0[1]
out[2 * outstride + col] = u[2]; // buf0[2]
out[6 * outstride + col] = u[3]; // buf0[3]
}
}
static void fadst8_avx2(__m256i *in, __m256i *out, const int8_t bit,
const int col_num, const int outstirde) {
(void)col_num;
const int32_t *cospi = cospi_arr(bit);
const __m256i cospi32 = _mm256_set1_epi32(cospi[32]);
const __m256i cospi16 = _mm256_set1_epi32(cospi[16]);
const __m256i cospim16 = _mm256_set1_epi32(-cospi[16]);
const __m256i cospi48 = _mm256_set1_epi32(cospi[48]);
const __m256i cospim48 = _mm256_set1_epi32(-cospi[48]);
const __m256i cospi4 = _mm256_set1_epi32(cospi[4]);
const __m256i cospim4 = _mm256_set1_epi32(-cospi[4]);
const __m256i cospi60 = _mm256_set1_epi32(cospi[60]);
const __m256i cospi20 = _mm256_set1_epi32(cospi[20]);
const __m256i cospim20 = _mm256_set1_epi32(-cospi[20]);
const __m256i cospi44 = _mm256_set1_epi32(cospi[44]);
const __m256i cospi28 = _mm256_set1_epi32(cospi[28]);
const __m256i cospi36 = _mm256_set1_epi32(cospi[36]);
const __m256i cospim36 = _mm256_set1_epi32(-cospi[36]);
const __m256i cospi52 = _mm256_set1_epi32(cospi[52]);
const __m256i cospim52 = _mm256_set1_epi32(-cospi[52]);
const __m256i cospi12 = _mm256_set1_epi32(cospi[12]);
const __m256i rnding = _mm256_set1_epi32(1 << (bit - 1));
const __m256i zero = _mm256_setzero_si256();
__m256i u0, u1, u2, u3, u4, u5, u6, u7;
__m256i v0, v1, v2, v3, v4, v5, v6, v7;
__m256i x, y;
for (int col = 0; col < col_num; ++col) {
u0 = in[0 * col_num + col];
u1 = _mm256_sub_epi32(zero, in[7 * col_num + col]);
u2 = _mm256_sub_epi32(zero, in[3 * col_num + col]);
u3 = in[4 * col_num + col];
u4 = _mm256_sub_epi32(zero, in[1 * col_num + col]);
u5 = in[6 * col_num + col];
u6 = in[2 * col_num + col];
u7 = _mm256_sub_epi32(zero, in[5 * col_num + col]);
// stage 2
v0 = u0;
v1 = u1;
x = _mm256_mullo_epi32(u2, cospi32);
y = _mm256_mullo_epi32(u3, cospi32);
v2 = _mm256_add_epi32(x, y);
v2 = _mm256_add_epi32(v2, rnding);
v2 = _mm256_srai_epi32(v2, bit);
v3 = _mm256_sub_epi32(x, y);
v3 = _mm256_add_epi32(v3, rnding);
v3 = _mm256_srai_epi32(v3, bit);
v4 = u4;
v5 = u5;
x = _mm256_mullo_epi32(u6, cospi32);
y = _mm256_mullo_epi32(u7, cospi32);
v6 = _mm256_add_epi32(x, y);
v6 = _mm256_add_epi32(v6, rnding);
v6 = _mm256_srai_epi32(v6, bit);
v7 = _mm256_sub_epi32(x, y);
v7 = _mm256_add_epi32(v7, rnding);
v7 = _mm256_srai_epi32(v7, bit);
// stage 3
u0 = _mm256_add_epi32(v0, v2);
u1 = _mm256_add_epi32(v1, v3);
u2 = _mm256_sub_epi32(v0, v2);
u3 = _mm256_sub_epi32(v1, v3);
u4 = _mm256_add_epi32(v4, v6);
u5 = _mm256_add_epi32(v5, v7);
u6 = _mm256_sub_epi32(v4, v6);
u7 = _mm256_sub_epi32(v5, v7);
// stage 4
v0 = u0;
v1 = u1;
v2 = u2;
v3 = u3;
x = _mm256_mullo_epi32(u4, cospi16);
y = _mm256_mullo_epi32(u5, cospi48);
v4 = _mm256_add_epi32(x, y);
v4 = _mm256_add_epi32(v4, rnding);
v4 = _mm256_srai_epi32(v4, bit);
x = _mm256_mullo_epi32(u4, cospi48);
y = _mm256_mullo_epi32(u5, cospim16);
v5 = _mm256_add_epi32(x, y);
v5 = _mm256_add_epi32(v5, rnding);
v5 = _mm256_srai_epi32(v5, bit);
x = _mm256_mullo_epi32(u6, cospim48);
y = _mm256_mullo_epi32(u7, cospi16);
v6 = _mm256_add_epi32(x, y);
v6 = _mm256_add_epi32(v6, rnding);
v6 = _mm256_srai_epi32(v6, bit);
x = _mm256_mullo_epi32(u6, cospi16);
y = _mm256_mullo_epi32(u7, cospi48);
v7 = _mm256_add_epi32(x, y);
v7 = _mm256_add_epi32(v7, rnding);
v7 = _mm256_srai_epi32(v7, bit);
// stage 5
u0 = _mm256_add_epi32(v0, v4);
u1 = _mm256_add_epi32(v1, v5);
u2 = _mm256_add_epi32(v2, v6);
u3 = _mm256_add_epi32(v3, v7);
u4 = _mm256_sub_epi32(v0, v4);
u5 = _mm256_sub_epi32(v1, v5);
u6 = _mm256_sub_epi32(v2, v6);
u7 = _mm256_sub_epi32(v3, v7);
// stage 6
x = _mm256_mullo_epi32(u0, cospi4);
y = _mm256_mullo_epi32(u1, cospi60);
v0 = _mm256_add_epi32(x, y);
v0 = _mm256_add_epi32(v0, rnding);
v0 = _mm256_srai_epi32(v0, bit);
x = _mm256_mullo_epi32(u0, cospi60);
y = _mm256_mullo_epi32(u1, cospim4);
v1 = _mm256_add_epi32(x, y);
v1 = _mm256_add_epi32(v1, rnding);
v1 = _mm256_srai_epi32(v1, bit);
x = _mm256_mullo_epi32(u2, cospi20);
y = _mm256_mullo_epi32(u3, cospi44);
v2 = _mm256_add_epi32(x, y);
v2 = _mm256_add_epi32(v2, rnding);
v2 = _mm256_srai_epi32(v2, bit);
x = _mm256_mullo_epi32(u2, cospi44);
y = _mm256_mullo_epi32(u3, cospim20);
v3 = _mm256_add_epi32(x, y);
v3 = _mm256_add_epi32(v3, rnding);
v3 = _mm256_srai_epi32(v3, bit);
x = _mm256_mullo_epi32(u4, cospi36);
y = _mm256_mullo_epi32(u5, cospi28);
v4 = _mm256_add_epi32(x, y);
v4 = _mm256_add_epi32(v4, rnding);
v4 = _mm256_srai_epi32(v4, bit);
x = _mm256_mullo_epi32(u4, cospi28);
y = _mm256_mullo_epi32(u5, cospim36);
v5 = _mm256_add_epi32(x, y);
v5 = _mm256_add_epi32(v5, rnding);
v5 = _mm256_srai_epi32(v5, bit);
x = _mm256_mullo_epi32(u6, cospi52);
y = _mm256_mullo_epi32(u7, cospi12);
v6 = _mm256_add_epi32(x, y);
v6 = _mm256_add_epi32(v6, rnding);
v6 = _mm256_srai_epi32(v6, bit);
x = _mm256_mullo_epi32(u6, cospi12);
y = _mm256_mullo_epi32(u7, cospim52);
v7 = _mm256_add_epi32(x, y);
v7 = _mm256_add_epi32(v7, rnding);
v7 = _mm256_srai_epi32(v7, bit);
// stage 7
out[0 * outstirde + col] = v1;
out[1 * outstirde + col] = v6;
out[2 * outstirde + col] = v3;
out[3 * outstirde + col] = v4;
out[4 * outstirde + col] = v5;
out[5 * outstirde + col] = v2;
out[6 * outstirde + col] = v7;
out[7 * outstirde + col] = v0;
}
}
static void idtx8_avx2(__m256i *in, __m256i *out, const int8_t bit, int col_num,
int outstride) {
(void)bit;
(void)outstride;
int num_iters = 8 * col_num;
for (int i = 0; i < num_iters; i += 8) {
out[i] = _mm256_add_epi32(in[i], in[i]);
out[i + 1] = _mm256_add_epi32(in[i + 1], in[i + 1]);
out[i + 2] = _mm256_add_epi32(in[i + 2], in[i + 2]);
out[i + 3] = _mm256_add_epi32(in[i + 3], in[i + 3]);
out[i + 4] = _mm256_add_epi32(in[i + 4], in[i + 4]);
out[i + 5] = _mm256_add_epi32(in[i + 5], in[i + 5]);
out[i + 6] = _mm256_add_epi32(in[i + 6], in[i + 6]);
out[i + 7] = _mm256_add_epi32(in[i + 7], in[i + 7]);
}
}
void av1_fwd_txfm2d_8x8_avx2(const int16_t *input, int32_t *coeff, int stride,
TX_TYPE tx_type, int bd) {
__m256i in[8], out[8];
const TX_SIZE tx_size = TX_8X8;
const int8_t *shift = av1_fwd_txfm_shift_ls[tx_size];
const int txw_idx = get_txw_idx(tx_size);
const int txh_idx = get_txh_idx(tx_size);
const int width = tx_size_wide[tx_size];
const int width_div8 = (width >> 3);
switch (tx_type) {
case DCT_DCT:
load_buffer_8x8_avx2(input, in, stride, 0, 0, shift[0]);
fdct8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
col_txfm_8x8_rounding(out, -shift[1]);
fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
fdct8_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
width_div8);
fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
store_buffer_avx2(in, coeff, 8, 8);
break;
case ADST_DCT:
load_buffer_8x8_avx2(input, in, stride, 0, 0, shift[0]);
fadst8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
col_txfm_8x8_rounding(out, -shift[1]);
fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
fdct8_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
width_div8);
fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
store_buffer_avx2(in, coeff, 8, 8);
break;
case DCT_ADST:
load_buffer_8x8_avx2(input, in, stride, 0, 0, shift[0]);
fdct8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
col_txfm_8x8_rounding(out, -shift[1]);
fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
fadst8_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
width_div8);
fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
store_buffer_avx2(in, coeff, 8, 8);
break;
case ADST_ADST:
load_buffer_8x8_avx2(input, in, stride, 0, 0, shift[0]);
fadst8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
col_txfm_8x8_rounding(out, -shift[1]);
fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
fadst8_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
width_div8);
fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
store_buffer_avx2(in, coeff, 8, 8);
break;
case FLIPADST_DCT:
load_buffer_8x8_avx2(input, in, stride, 1, 0, shift[0]);
fadst8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
col_txfm_8x8_rounding(out, -shift[1]);
fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
fdct8_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
width_div8);
fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
store_buffer_avx2(in, coeff, 8, 8);
break;
case DCT_FLIPADST:
load_buffer_8x8_avx2(input, in, stride, 0, 1, shift[0]);
fdct8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
col_txfm_8x8_rounding(out, -shift[1]);
fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
fadst8_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
width_div8);
fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
store_buffer_avx2(in, coeff, 8, 8);
break;
case FLIPADST_FLIPADST:
load_buffer_8x8_avx2(input, in, stride, 1, 1, shift[0]);
fadst8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
col_txfm_8x8_rounding(out, -shift[1]);
fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
fadst8_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
width_div8);
fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
store_buffer_avx2(in, coeff, 8, 8);
break;
case ADST_FLIPADST:
load_buffer_8x8_avx2(input, in, stride, 0, 1, shift[0]);
fadst8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
col_txfm_8x8_rounding(out, -shift[1]);
fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
fadst8_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
width_div8);
fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
store_buffer_avx2(in, coeff, 8, 8);
break;
case FLIPADST_ADST:
load_buffer_8x8_avx2(input, in, stride, 1, 0, shift[0]);
fadst8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
col_txfm_8x8_rounding(out, -shift[1]);
fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
fadst8_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
width_div8);
fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
store_buffer_avx2(in, coeff, 8, 8);
break;
case IDTX:
load_buffer_8x8_avx2(input, in, stride, 0, 0, shift[0]);
idtx8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
col_txfm_8x8_rounding(out, -shift[1]);
idtx8_avx2(out, in, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
store_buffer_avx2(in, coeff, 8, 8);
break;
case V_DCT:
load_buffer_8x8_avx2(input, in, stride, 0, 0, shift[0]);
fdct8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
col_txfm_8x8_rounding(out, -shift[1]);
idtx8_avx2(out, in, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
store_buffer_avx2(in, coeff, 8, 8);
break;
case H_DCT:
load_buffer_8x8_avx2(input, in, stride, 0, 0, shift[0]);
idtx8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
col_txfm_8x8_rounding(out, -shift[1]);
fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
fdct8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
store_buffer_avx2(in, coeff, 8, 8);
break;
case V_ADST:
load_buffer_8x8_avx2(input, in, stride, 0, 0, shift[0]);
fadst8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
col_txfm_8x8_rounding(out, -shift[1]);
idtx8_avx2(out, in, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
store_buffer_avx2(in, coeff, 8, 8);
break;
case H_ADST:
load_buffer_8x8_avx2(input, in, stride, 0, 0, shift[0]);
idtx8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
col_txfm_8x8_rounding(out, -shift[1]);
fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
fadst8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
store_buffer_avx2(in, coeff, 8, 8);
break;
case V_FLIPADST:
load_buffer_8x8_avx2(input, in, stride, 1, 0, shift[0]);
fadst8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
col_txfm_8x8_rounding(out, -shift[1]);
idtx8_avx2(out, in, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
store_buffer_avx2(in, coeff, 8, 8);
break;
case H_FLIPADST:
load_buffer_8x8_avx2(input, in, stride, 0, 1, shift[0]);
idtx8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
col_txfm_8x8_rounding(out, -shift[1]);
fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
fadst8_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
fwd_txfm_transpose_8x8_avx2(out, in, width_div8, width_div8);
store_buffer_avx2(in, coeff, 8, 8);
break;
default: assert(0);
}
(void)bd;
}
static void fdct16_avx2(__m256i *in, __m256i *out, const int8_t bit,
const int col_num, const int outstride) {
const int32_t *cospi = cospi_arr(bit);
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 cospi16 = _mm256_set1_epi32(cospi[16]);
const __m256i cospim48 = _mm256_set1_epi32(-cospi[48]);
const __m256i cospim16 = _mm256_set1_epi32(-cospi[16]);
const __m256i cospi56 = _mm256_set1_epi32(cospi[56]);
const __m256i cospi8 = _mm256_set1_epi32(cospi[8]);
const __m256i cospi24 = _mm256_set1_epi32(cospi[24]);
const __m256i cospi40 = _mm256_set1_epi32(cospi[40]);
const __m256i cospi60 = _mm256_set1_epi32(cospi[60]);
const __m256i cospi4 = _mm256_set1_epi32(cospi[4]);
const __m256i cospi28 = _mm256_set1_epi32(cospi[28]);
const __m256i cospi36 = _mm256_set1_epi32(cospi[36]);
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 cospi52 = _mm256_set1_epi32(cospi[52]);
const __m256i rnding = _mm256_set1_epi32(1 << (bit - 1));
__m256i u[16], v[16], x;
int col;
// Calculate the column 0, 1, 2, 3
for (col = 0; col < col_num; ++col) {
// stage 0
// stage 1
u[0] = _mm256_add_epi32(in[0 * col_num + col], in[15 * col_num + col]);
u[15] = _mm256_sub_epi32(in[0 * col_num + col], in[15 * col_num + col]);
u[1] = _mm256_add_epi32(in[1 * col_num + col], in[14 * col_num + col]);
u[14] = _mm256_sub_epi32(in[1 * col_num + col], in[14 * col_num + col]);
u[2] = _mm256_add_epi32(in[2 * col_num + col], in[13 * col_num + col]);
u[13] = _mm256_sub_epi32(in[2 * col_num + col], in[13 * col_num + col]);
u[3] = _mm256_add_epi32(in[3 * col_num + col], in[12 * col_num + col]);
u[12] = _mm256_sub_epi32(in[3 * col_num + col], in[12 * col_num + col]);
u[4] = _mm256_add_epi32(in[4 * col_num + col], in[11 * col_num + col]);
u[11] = _mm256_sub_epi32(in[4 * col_num + col], in[11 * col_num + col]);
u[5] = _mm256_add_epi32(in[5 * col_num + col], in[10 * col_num + col]);
u[10] = _mm256_sub_epi32(in[5 * col_num + col], in[10 * col_num + col]);
u[6] = _mm256_add_epi32(in[6 * col_num + col], in[9 * col_num + col]);
u[9] = _mm256_sub_epi32(in[6 * col_num + col], in[9 * col_num + col]);
u[7] = _mm256_add_epi32(in[7 * col_num + col], in[8 * col_num + col]);
u[8] = _mm256_sub_epi32(in[7 * col_num + col], in[8 * col_num + col]);
// stage 2
v[0] = _mm256_add_epi32(u[0], u[7]);
v[7] = _mm256_sub_epi32(u[0], u[7]);
v[1] = _mm256_add_epi32(u[1], u[6]);
v[6] = _mm256_sub_epi32(u[1], u[6]);
v[2] = _mm256_add_epi32(u[2], u[5]);
v[5] = _mm256_sub_epi32(u[2], u[5]);
v[3] = _mm256_add_epi32(u[3], u[4]);
v[4] = _mm256_sub_epi32(u[3], u[4]);
v[8] = u[8];
v[9] = u[9];
v[10] = _mm256_mullo_epi32(u[10], cospim32);
x = _mm256_mullo_epi32(u[13], cospi32);
v[10] = _mm256_add_epi32(v[10], x);
v[10] = _mm256_add_epi32(v[10], rnding);
v[10] = _mm256_srai_epi32(v[10], bit);
v[13] = _mm256_mullo_epi32(u[10], cospi32);
x = _mm256_mullo_epi32(u[13], cospim32);
v[13] = _mm256_sub_epi32(v[13], x);
v[13] = _mm256_add_epi32(v[13], rnding);
v[13] = _mm256_srai_epi32(v[13], bit);
v[11] = _mm256_mullo_epi32(u[11], cospim32);
x = _mm256_mullo_epi32(u[12], cospi32);
v[11] = _mm256_add_epi32(v[11], x);
v[11] = _mm256_add_epi32(v[11], rnding);
v[11] = _mm256_srai_epi32(v[11], bit);
v[12] = _mm256_mullo_epi32(u[11], cospi32);
x = _mm256_mullo_epi32(u[12], cospim32);
v[12] = _mm256_sub_epi32(v[12], x);
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 3
u[0] = _mm256_add_epi32(v[0], v[3]);
u[3] = _mm256_sub_epi32(v[0], v[3]);
u[1] = _mm256_add_epi32(v[1], v[2]);
u[2] = _mm256_sub_epi32(v[1], v[2]);
u[4] = v[4];
u[5] = _mm256_mullo_epi32(v[5], cospim32);
x = _mm256_mullo_epi32(v[6], cospi32);
u[5] = _mm256_add_epi32(u[5], x);
u[5] = _mm256_add_epi32(u[5], rnding);
u[5] = _mm256_srai_epi32(u[5], bit);
u[6] = _mm256_mullo_epi32(v[5], cospi32);
x = _mm256_mullo_epi32(v[6], cospim32);
u[6] = _mm256_sub_epi32(u[6], x);
u[6] = _mm256_add_epi32(u[6], rnding);
u[6] = _mm256_srai_epi32(u[6], bit);
u[7] = v[7];
u[8] = _mm256_add_epi32(v[8], v[11]);
u[11] = _mm256_sub_epi32(v[8], v[11]);
u[9] = _mm256_add_epi32(v[9], v[10]);
u[10] = _mm256_sub_epi32(v[9], v[10]);
u[12] = _mm256_sub_epi32(v[15], v[12]);
u[15] = _mm256_add_epi32(v[15], v[12]);
u[13] = _mm256_sub_epi32(v[14], v[13]);
u[14] = _mm256_add_epi32(v[14], v[13]);
// stage 4
u[0] = _mm256_mullo_epi32(u[0], cospi32);
u[1] = _mm256_mullo_epi32(u[1], cospi32);
v[0] = _mm256_add_epi32(u[0], u[1]);
v[0] = _mm256_add_epi32(v[0], rnding);
v[0] = _mm256_srai_epi32(v[0], bit);
v[1] = _mm256_sub_epi32(u[0], u[1]);
v[1] = _mm256_add_epi32(v[1], rnding);
v[1] = _mm256_srai_epi32(v[1], bit);
v[2] = _mm256_mullo_epi32(u[2], cospi48);
x = _mm256_mullo_epi32(u[3], cospi16);
v[2] = _mm256_add_epi32(v[2], x);
v[2] = _mm256_add_epi32(v[2], rnding);
v[2] = _mm256_srai_epi32(v[2], bit);
v[3] = _mm256_mullo_epi32(u[2], cospi16);
x = _mm256_mullo_epi32(u[3], cospi48);
v[3] = _mm256_sub_epi32(x, v[3]);
v[3] = _mm256_add_epi32(v[3], rnding);
v[3] = _mm256_srai_epi32(v[3], bit);
v[4] = _mm256_add_epi32(u[4], u[5]);
v[5] = _mm256_sub_epi32(u[4], u[5]);
v[6] = _mm256_sub_epi32(u[7], u[6]);
v[7] = _mm256_add_epi32(u[7], u[6]);
v[8] = u[8];
v[9] = _mm256_mullo_epi32(u[9], cospim16);
x = _mm256_mullo_epi32(u[14], cospi48);
v[9] = _mm256_add_epi32(v[9], x);
v[9] = _mm256_add_epi32(v[9], rnding);
v[9] = _mm256_srai_epi32(v[9], bit);
v[14] = _mm256_mullo_epi32(u[9], cospi48);
x = _mm256_mullo_epi32(u[14], cospim16);
v[14] = _mm256_sub_epi32(v[14], x);
v[14] = _mm256_add_epi32(v[14], rnding);
v[14] = _mm256_srai_epi32(v[14], bit);
v[10] = _mm256_mullo_epi32(u[10], cospim48);
x = _mm256_mullo_epi32(u[13], cospim16);
v[10] = _mm256_add_epi32(v[10], x);
v[10] = _mm256_add_epi32(v[10], rnding);
v[10] = _mm256_srai_epi32(v[10], bit);
v[13] = _mm256_mullo_epi32(u[10], cospim16);
x = _mm256_mullo_epi32(u[13], cospim48);
v[13] = _mm256_sub_epi32(v[13], x);
v[13] = _mm256_add_epi32(v[13], rnding);
v[13] = _mm256_srai_epi32(v[13], bit);
v[11] = u[11];
v[12] = u[12];
v[15] = u[15];
// stage 5
u[0] = v[0];
u[1] = v[1];
u[2] = v[2];
u[3] = v[3];
u[4] = _mm256_mullo_epi32(v[4], cospi56);
x = _mm256_mullo_epi32(v[7], cospi8);
u[4] = _mm256_add_epi32(u[4], x);
u[4] = _mm256_add_epi32(u[4], rnding);
u[4] = _mm256_srai_epi32(u[4], bit);
u[7] = _mm256_mullo_epi32(v[4], cospi8);
x = _mm256_mullo_epi32(v[7], cospi56);
u[7] = _mm256_sub_epi32(x, u[7]);
u[7] = _mm256_add_epi32(u[7], rnding);
u[7] = _mm256_srai_epi32(u[7], bit);
u[5] = _mm256_mullo_epi32(v[5], cospi24);
x = _mm256_mullo_epi32(v[6], cospi40);
u[5] = _mm256_add_epi32(u[5], x);
u[5] = _mm256_add_epi32(u[5], rnding);
u[5] = _mm256_srai_epi32(u[5], bit);
u[6] = _mm256_mullo_epi32(v[5], cospi40);
x = _mm256_mullo_epi32(v[6], cospi24);
u[6] = _mm256_sub_epi32(x, u[6]);
u[6] = _mm256_add_epi32(u[6], rnding);
u[6] = _mm256_srai_epi32(u[6], bit);
u[8] = _mm256_add_epi32(v[8], v[9]);
u[9] = _mm256_sub_epi32(v[8], v[9]);
u[10] = _mm256_sub_epi32(v[11], v[10]);
u[11] = _mm256_add_epi32(v[11], v[10]);
u[12] = _mm256_add_epi32(v[12], v[13]);
u[13] = _mm256_sub_epi32(v[12], v[13]);
u[14] = _mm256_sub_epi32(v[15], v[14]);
u[15] = _mm256_add_epi32(v[15], v[14]);
// stage 6
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] = _mm256_mullo_epi32(u[8], cospi60);
x = _mm256_mullo_epi32(u[15], cospi4);
v[8] = _mm256_add_epi32(v[8], x);
v[8] = _mm256_add_epi32(v[8], rnding);
v[8] = _mm256_srai_epi32(v[8], bit);
v[15] = _mm256_mullo_epi32(u[8], cospi4);
x = _mm256_mullo_epi32(u[15], cospi60);
v[15] = _mm256_sub_epi32(x, v[15]);
v[15] = _mm256_add_epi32(v[15], rnding);
v[15] = _mm256_srai_epi32(v[15], bit);
v[9] = _mm256_mullo_epi32(u[9], cospi28);
x = _mm256_mullo_epi32(u[14], cospi36);
v[9] = _mm256_add_epi32(v[9], x);
v[9] = _mm256_add_epi32(v[9], rnding);
v[9] = _mm256_srai_epi32(v[9], bit);
v[14] = _mm256_mullo_epi32(u[9], cospi36);
x = _mm256_mullo_epi32(u[14], cospi28);
v[14] = _mm256_sub_epi32(x, v[14]);
v[14] = _mm256_add_epi32(v[14], rnding);
v[14] = _mm256_srai_epi32(v[14], bit);
v[10] = _mm256_mullo_epi32(u[10], cospi44);
x = _mm256_mullo_epi32(u[13], cospi20);
v[10] = _mm256_add_epi32(v[10], x);
v[10] = _mm256_add_epi32(v[10], rnding);
v[10] = _mm256_srai_epi32(v[10], bit);
v[13] = _mm256_mullo_epi32(u[10], cospi20);
x = _mm256_mullo_epi32(u[13], cospi44);
v[13] = _mm256_sub_epi32(x, v[13]);
v[13] = _mm256_add_epi32(v[13], rnding);
v[13] = _mm256_srai_epi32(v[13], bit);
v[11] = _mm256_mullo_epi32(u[11], cospi12);
x = _mm256_mullo_epi32(u[12], cospi52);
v[11] = _mm256_add_epi32(v[11], x);
v[11] = _mm256_add_epi32(v[11], rnding);
v[11] = _mm256_srai_epi32(v[11], bit);
v[12] = _mm256_mullo_epi32(u[11], cospi52);
x = _mm256_mullo_epi32(u[12], cospi12);
v[12] = _mm256_sub_epi32(x, v[12]);
v[12] = _mm256_add_epi32(v[12], rnding);
v[12] = _mm256_srai_epi32(v[12], bit);
out[0 * outstride + col] = v[0];
out[1 * outstride + col] = v[8];
out[2 * outstride + col] = v[4];
out[3 * outstride + col] = v[12];
out[4 * outstride + col] = v[2];
out[5 * outstride + col] = v[10];
out[6 * outstride + col] = v[6];
out[7 * outstride + col] = v[14];
out[8 * outstride + col] = v[1];
out[9 * outstride + col] = v[9];
out[10 * outstride + col] = v[5];
out[11 * outstride + col] = v[13];
out[12 * outstride + col] = v[3];
out[13 * outstride + col] = v[11];
out[14 * outstride + col] = v[7];
out[15 * outstride + col] = v[15];
}
}
static void fadst16_avx2(__m256i *in, __m256i *out, const int8_t bit,
const int num_cols, const int outstride) {
const int32_t *cospi = cospi_arr(bit);
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 cospi8 = _mm256_set1_epi32(cospi[8]);
const __m256i cospi56 = _mm256_set1_epi32(cospi[56]);
const __m256i cospim56 = _mm256_set1_epi32(-cospi[56]);
const __m256i cospim8 = _mm256_set1_epi32(-cospi[8]);
const __m256i cospi24 = _mm256_set1_epi32(cospi[24]);
const __m256i cospim24 = _mm256_set1_epi32(-cospi[24]);
const __m256i cospim40 = _mm256_set1_epi32(-cospi[40]);
const __m256i cospi40 = _mm256_set1_epi32(cospi[40]);
const __m256i cospi2 = _mm256_set1_epi32(cospi[2]);
const __m256i cospi62 = _mm256_set1_epi32(cospi[62]);
const __m256i cospim2 = _mm256_set1_epi32(-cospi[2]);
const __m256i cospi10 = _mm256_set1_epi32(cospi[10]);
const __m256i cospi54 = _mm256_set1_epi32(cospi[54]);
const __m256i cospim10 = _mm256_set1_epi32(-cospi[10]);
const __m256i cospi18 = _mm256_set1_epi32(cospi[18]);
const __m256i cospi46 = _mm256_set1_epi32(cospi[46]);
const __m256i cospim18 = _mm256_set1_epi32(-cospi[18]);
const __m256i cospi26 = _mm256_set1_epi32(cospi[26]);
const __m256i cospi38 = _mm256_set1_epi32(cospi[38]);
const __m256i cospim26 = _mm256_set1_epi32(-cospi[26]);
const __m256i cospi34 = _mm256_set1_epi32(cospi[34]);
const __m256i cospi30 = _mm256_set1_epi32(cospi[30]);
const __m256i cospim34 = _mm256_set1_epi32(-cospi[34]);
const __m256i cospi42 = _mm256_set1_epi32(cospi[42]);
const __m256i cospi22 = _mm256_set1_epi32(cospi[22]);
const __m256i cospim42 = _mm256_set1_epi32(-cospi[42]);
const __m256i cospi50 = _mm256_set1_epi32(cospi[50]);
const __m256i cospi14 = _mm256_set1_epi32(cospi[14]);
const __m256i cospim50 = _mm256_set1_epi32(-cospi[50]);
const __m256i cospi58 = _mm256_set1_epi32(cospi[58]);
const __m256i cospi6 = _mm256_set1_epi32(cospi[6]);
const __m256i cospim58 = _mm256_set1_epi32(-cospi[58]);
const __m256i rnding = _mm256_set1_epi32(1 << (bit - 1));
const __m256i zero = _mm256_setzero_si256();
__m256i u[16], v[16], x, y;
int col;
for (col = 0; col < num_cols; ++col) {
// stage 0
// stage 1
u[0] = in[0 * num_cols + col];
u[1] = _mm256_sub_epi32(zero, in[15 * num_cols + col]);
u[2] = _mm256_sub_epi32(zero, in[7 * num_cols + col]);
u[3] = in[8 * num_cols + col];
u[4] = _mm256_sub_epi32(zero, in[3 * num_cols + col]);
u[5] = in[12 * num_cols + col];
u[6] = in[4 * num_cols + col];
u[7] = _mm256_sub_epi32(zero, in[11 * num_cols + col]);
u[8] = _mm256_sub_epi32(zero, in[1 * num_cols + col]);
u[9] = in[14 * num_cols + col];
u[10] = in[6 * num_cols + col];
u[11] = _mm256_sub_epi32(zero, in[9 * num_cols + col]);
u[12] = in[2 * num_cols + col];
u[13] = _mm256_sub_epi32(zero, in[13 * num_cols + col]);
u[14] = _mm256_sub_epi32(zero, in[5 * num_cols + col]);
u[15] = in[10 * num_cols + col];
// stage 2
v[0] = u[0];
v[1] = u[1];
x = _mm256_mullo_epi32(u[2], cospi32);
y = _mm256_mullo_epi32(u[3], cospi32);
v[2] = _mm256_add_epi32(x, y);
v[2] = _mm256_add_epi32(v[2], rnding);
v[2] = _mm256_srai_epi32(v[2], bit);
v[3] = _mm256_sub_epi32(x, y);
v[3] = _mm256_add_epi32(v[3], rnding);
v[3] = _mm256_srai_epi32(v[3], bit);
v[4] = u[4];
v[5] = u[5];
x = _mm256_mullo_epi32(u[6], cospi32);
y = _mm256_mullo_epi32(u[7], cospi32);
v[6] = _mm256_add_epi32(x, y);
v[6] = _mm256_add_epi32(v[6], rnding);
v[6] = _mm256_srai_epi32(v[6], bit);
v[7] = _mm256_sub_epi32(x, y);
v[7] = _mm256_add_epi32(v[7], rnding);
v[7] = _mm256_srai_epi32(v[7], bit);
v[8] = u[8];
v[9] = u[9];
x = _mm256_mullo_epi32(u[10], cospi32);
y = _mm256_mullo_epi32(u[11], cospi32);
v[10] = _mm256_add_epi32(x, y);
v[10] = _mm256_add_epi32(v[10], rnding);
v[10] = _mm256_srai_epi32(v[10], bit);
v[11] = _mm256_sub_epi32(x, y);
v[11] = _mm256_add_epi32(v[11], rnding);
v[11] = _mm256_srai_epi32(v[11], bit);
v[12] = u[12];
v[13] = u[13];
x = _mm256_mullo_epi32(u[14], cospi32);
y = _mm256_mullo_epi32(u[15], cospi32);
v[14] = _mm256_add_epi32(x, y);
v[14] = _mm256_add_epi32(v[14], rnding);
v[14] = _mm256_srai_epi32(v[14], bit);
v[15] = _mm256_sub_epi32(x, y);
v[15] = _mm256_add_epi32(v[15], rnding);
v[15] = _mm256_srai_epi32(v[15], bit);
// stage 3
u[0] = _mm256_add_epi32(v[0], v[2]);
u[1] = _mm256_add_epi32(v[1], v[3]);
u[2] = _mm256_sub_epi32(v[0], v[2]);
u[3] = _mm256_sub_epi32(v[1], v[3]);
u[4] = _mm256_add_epi32(v[4], v[6]);
u[5] = _mm256_add_epi32(v[5], v[7]);
u[6] = _mm256_sub_epi32(v[4], v[6]);
u[7] = _mm256_sub_epi32(v[5], v[7]);
u[8] = _mm256_add_epi32(v[8], v[10]);
u[9] = _mm256_add_epi32(v[9], v[11]);
u[10] = _mm256_sub_epi32(v[8], v[10]);
u[11] = _mm256_sub_epi32(v[9], v[11]);
u[12] = _mm256_add_epi32(v[12], v[14]);
u[13] = _mm256_add_epi32(v[13], v[15]);
u[14] = _mm256_sub_epi32(v[12], v[14]);
u[15] = _mm256_sub_epi32(v[13], v[15]);
// stage 4
v[0] = u[0];
v[1] = u[1];
v[2] = u[2];
v[3] = u[3];
v[4] = av1_half_btf_avx2(&cospi16, &u[4], &cospi48, &u[5], &rnding, bit);
v[5] = av1_half_btf_avx2(&cospi48, &u[4], &cospim16, &u[5], &rnding, bit);
v[6] = av1_half_btf_avx2(&cospim48, &u[6], &cospi16, &u[7], &rnding, bit);
v[7] = av1_half_btf_avx2(&cospi16, &u[6], &cospi48, &u[7], &rnding, bit);
v[8] = u[8];
v[9] = u[9];
v[10] = u[10];
v[11] = u[11];
v[12] = av1_half_btf_avx2(&cospi16, &u[12], &cospi48, &u[13], &rnding, bit);
v[13] =
av1_half_btf_avx2(&cospi48, &u[12], &cospim16, &u[13], &rnding, bit);
v[14] =
av1_half_btf_avx2(&cospim48, &u[14], &cospi16, &u[15], &rnding, bit);
v[15] = av1_half_btf_avx2(&cospi16, &u[14], &cospi48, &u[15], &rnding, bit);
// stage 5
u[0] = _mm256_add_epi32(v[0], v[4]);
u[1] = _mm256_add_epi32(v[1], v[5]);
u[2] = _mm256_add_epi32(v[2], v[6]);
u[3] = _mm256_add_epi32(v[3], v[7]);
u[4] = _mm256_sub_epi32(v[0], v[4]);
u[5] = _mm256_sub_epi32(v[1], v[5]);
u[6] = _mm256_sub_epi32(v[2], v[6]);
u[7] = _mm256_sub_epi32(v[3], v[7]);
u[8] = _mm256_add_epi32(v[8], v[12]);
u[9] = _mm256_add_epi32(v[9], v[13]);
u[10] = _mm256_add_epi32(v[10], v[14]);
u[11] = _mm256_add_epi32(v[11], v[15]);
u[12] = _mm256_sub_epi32(v[8], v[12]);
u[13] = _mm256_sub_epi32(v[9], v[13]);
u[14] = _mm256_sub_epi32(v[10], v[14]);
u[15] = _mm256_sub_epi32(v[11], v[15]);
// stage 6
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] = av1_half_btf_avx2(&cospi8, &u[8], &cospi56, &u[9], &rnding, bit);
v[9] = av1_half_btf_avx2(&cospi56, &u[8], &cospim8, &u[9], &rnding, bit);
v[10] = av1_half_btf_avx2(&cospi40, &u[10], &cospi24, &u[11], &rnding, bit);
v[11] =
av1_half_btf_avx2(&cospi24, &u[10], &cospim40, &u[11], &rnding, bit);
v[12] = av1_half_btf_avx2(&cospim56, &u[12], &cospi8, &u[13], &rnding, bit);
v[13] = av1_half_btf_avx2(&cospi8, &u[12], &cospi56, &u[13], &rnding, bit);
v[14] =
av1_half_btf_avx2(&cospim24, &u[14], &cospi40, &u[15], &rnding, bit);
v[15] = av1_half_btf_avx2(&cospi40, &u[14], &cospi24, &u[15], &rnding, bit);
// stage 7
u[0] = _mm256_add_epi32(v[0], v[8]);
u[1] = _mm256_add_epi32(v[1], v[9]);
u[2] = _mm256_add_epi32(v[2], v[10]);
u[3] = _mm256_add_epi32(v[3], v[11]);
u[4] = _mm256_add_epi32(v[4], v[12]);
u[5] = _mm256_add_epi32(v[5], v[13]);
u[6] = _mm256_add_epi32(v[6], v[14]);
u[7] = _mm256_add_epi32(v[7], v[15]);
u[8] = _mm256_sub_epi32(v[0], v[8]);
u[9] = _mm256_sub_epi32(v[1], v[9]);
u[10] = _mm256_sub_epi32(v[2], v[10]);
u[11] = _mm256_sub_epi32(v[3], v[11]);
u[12] = _mm256_sub_epi32(v[4], v[12]);
u[13] = _mm256_sub_epi32(v[5], v[13]);
u[14] = _mm256_sub_epi32(v[6], v[14]);
u[15] = _mm256_sub_epi32(v[7], v[15]);
// stage 8
v[0] = av1_half_btf_avx2(&cospi2, &u[0], &cospi62, &u[1], &rnding, bit);
v[1] = av1_half_btf_avx2(&cospi62, &u[0], &cospim2, &u[1], &rnding, bit);
v[2] = av1_half_btf_avx2(&cospi10, &u[2], &cospi54, &u[3], &rnding, bit);
v[3] = av1_half_btf_avx2(&cospi54, &u[2], &cospim10, &u[3], &rnding, bit);
v[4] = av1_half_btf_avx2(&cospi18, &u[4], &cospi46, &u[5], &rnding, bit);
v[5] = av1_half_btf_avx2(&cospi46, &u[4], &cospim18, &u[5], &rnding, bit);
v[6] = av1_half_btf_avx2(&cospi26, &u[6], &cospi38, &u[7], &rnding, bit);
v[7] = av1_half_btf_avx2(&cospi38, &u[6], &cospim26, &u[7], &rnding, bit);
v[8] = av1_half_btf_avx2(&cospi34, &u[8], &cospi30, &u[9], &rnding, bit);
v[9] = av1_half_btf_avx2(&cospi30, &u[8], &cospim34, &u[9], &rnding, bit);
v[10] = av1_half_btf_avx2(&cospi42, &u[10], &cospi22, &u[11], &rnding, bit);
v[11] =
av1_half_btf_avx2(&cospi22, &u[10], &cospim42, &u[11], &rnding, bit);
v[12] = av1_half_btf_avx2(&cospi50, &u[12], &cospi14, &u[13], &rnding, bit);
v[13] =
av1_half_btf_avx2(&cospi14, &u[12], &cospim50, &u[13], &rnding, bit);
v[14] = av1_half_btf_avx2(&cospi58, &u[14], &cospi6, &u[15], &rnding, bit);
v[15] = av1_half_btf_avx2(&cospi6, &u[14], &cospim58, &u[15], &rnding, bit);
// stage 9
out[0 * outstride + col] = v[1];
out[1 * outstride + col] = v[14];
out[2 * outstride + col] = v[3];
out[3 * outstride + col] = v[12];
out[4 * outstride + col] = v[5];
out[5 * outstride + col] = v[10];
out[6 * outstride + col] = v[7];
out[7 * outstride + col] = v[8];
out[8 * outstride + col] = v[9];
out[9 * outstride + col] = v[6];
out[10 * outstride + col] = v[11];
out[11 * outstride + col] = v[4];
out[12 * outstride + col] = v[13];
out[13 * outstride + col] = v[2];
out[14 * outstride + col] = v[15];
out[15 * outstride + col] = v[0];
}
}
static void idtx16_avx2(__m256i *in, __m256i *out, const int8_t bit,
int col_num, const int outstride) {
(void)bit;
(void)outstride;
__m256i fact = _mm256_set1_epi32(2 * NewSqrt2);
__m256i offset = _mm256_set1_epi32(1 << (NewSqrt2Bits - 1));
__m256i a_low;
int num_iters = 16 * col_num;
for (int i = 0; i < num_iters; i++) {
a_low = _mm256_mullo_epi32(in[i], fact);
a_low = _mm256_add_epi32(a_low, offset);
out[i] = _mm256_srai_epi32(a_low, NewSqrt2Bits);
}
}
static const transform_1d_avx2 col_highbd_txfm8x16_arr[TX_TYPES] = {
fdct16_avx2, // DCT_DCT
fadst16_avx2, // ADST_DCT
fdct16_avx2, // DCT_ADST
fadst16_avx2, // ADST_ADST
fadst16_avx2, // FLIPADST_DCT
fdct16_avx2, // DCT_FLIPADST
fadst16_avx2, // FLIPADST_FLIPADST
fadst16_avx2, // ADST_FLIPADST
fadst16_avx2, // FLIPADST_ADST
idtx16_avx2, // IDTX
fdct16_avx2, // V_DCT
idtx16_avx2, // H_DCT
fadst16_avx2, // V_ADST
idtx16_avx2, // H_ADST
fadst16_avx2, // V_FLIPADST
idtx16_avx2 // H_FLIPADST
};
static const transform_1d_avx2 row_highbd_txfm8x8_arr[TX_TYPES] = {
fdct8_avx2, // DCT_DCT
fdct8_avx2, // ADST_DCT
fadst8_avx2, // DCT_ADST
fadst8_avx2, // ADST_ADST
fdct8_avx2, // FLIPADST_DCT
fadst8_avx2, // DCT_FLIPADST
fadst8_avx2, // FLIPADST_FLIPADST
fadst8_avx2, // ADST_FLIPADST
fadst8_avx2, // FLIPADST_ADST
idtx8_avx2, // IDTX
idtx8_avx2, // V_DCT
fdct8_avx2, // H_DCT
idtx8_avx2, // V_ADST
fadst8_avx2, // H_ADST
idtx8_avx2, // V_FLIPADST
fadst8_avx2 // H_FLIPADST
};
void av1_fwd_txfm2d_8x16_avx2(const int16_t *input, int32_t *coeff, int stride,
TX_TYPE tx_type, int bd) {
__m256i in[16], out[16];
const int8_t *shift = av1_fwd_txfm_shift_ls[TX_8X16];
const int txw_idx = get_txw_idx(TX_8X16);
const int txh_idx = get_txh_idx(TX_8X16);
const transform_1d_avx2 col_txfm = col_highbd_txfm8x16_arr[tx_type];
const transform_1d_avx2 row_txfm = row_highbd_txfm8x8_arr[tx_type];
const int8_t bit = av1_fwd_cos_bit_col[txw_idx][txh_idx];
int ud_flip, lr_flip;
get_flip_cfg(tx_type, &ud_flip, &lr_flip);
load_buffer_8x16_avx2(input, in, stride, ud_flip, lr_flip, shift[0]);
col_txfm(in, out, bit, 1, 1);
col_txfm_8x8_rounding(out, -shift[1]);
col_txfm_8x8_rounding(&out[8], -shift[1]);
fwd_txfm_transpose_8x8_avx2(out, in, 1, 2);
fwd_txfm_transpose_8x8_avx2(&out[8], &in[1], 1, 2);
row_txfm(in, out, bit, 2, 2);
fwd_txfm_transpose_8x8_avx2(out, in, 2, 1);
fwd_txfm_transpose_8x8_avx2(&out[1], &in[8], 2, 1);
av1_round_shift_rect_array_32_avx2(in, in, 16, -shift[2], NewSqrt2);
store_buffer_avx2(in, coeff, 8, 16);
(void)bd;
}
static const transform_1d_avx2 col_highbd_txfm8x8_arr[TX_TYPES] = {
fdct8_avx2, // DCT_DCT
fadst8_avx2, // ADST_DCT
fdct8_avx2, // DCT_ADST
fadst8_avx2, // ADST_ADST
fadst8_avx2, // FLIPADST_DCT
fdct8_avx2, // DCT_FLIPADST
fadst8_avx2, // FLIPADST_FLIPADST
fadst8_avx2, // ADST_FLIPADST
fadst8_avx2, // FLIPADST_ADST
idtx8_avx2, // IDTX
fdct8_avx2, // V_DCT
idtx8_avx2, // H_DCT
fadst8_avx2, // V_ADST
idtx8_avx2, // H_ADST
fadst8_avx2, // V_FLIPADST
idtx8_avx2 // H_FLIPADST
};
static const transform_1d_avx2 row_highbd_txfm8x16_arr[TX_TYPES] = {
fdct16_avx2, // DCT_DCT
fdct16_avx2, // ADST_DCT
fadst16_avx2, // DCT_ADST
fadst16_avx2, // ADST_ADST
fdct16_avx2, // FLIPADST_DCT
fadst16_avx2, // DCT_FLIPADST
fadst16_avx2, // FLIPADST_FLIPADST
fadst16_avx2, // ADST_FLIPADST
fadst16_avx2, // FLIPADST_ADST
idtx16_avx2, // IDTX
idtx16_avx2, // V_DCT
fdct16_avx2, // H_DCT
idtx16_avx2, // V_ADST
fadst16_avx2, // H_ADST
idtx16_avx2, // V_FLIPADST
fadst16_avx2 // H_FLIPADST
};
void av1_fwd_txfm2d_16x8_avx2(const int16_t *input, int32_t *coeff, int stride,
TX_TYPE tx_type, int bd) {
__m256i in[16], out[16];
const int8_t *shift = av1_fwd_txfm_shift_ls[TX_16X8];
const int txw_idx = get_txw_idx(TX_16X8);
const int txh_idx = get_txh_idx(TX_16X8);
const transform_1d_avx2 col_txfm = col_highbd_txfm8x8_arr[tx_type];
const transform_1d_avx2 row_txfm = row_highbd_txfm8x16_arr[tx_type];
const int8_t bit = av1_fwd_cos_bit_col[txw_idx][txh_idx];
int ud_flip, lr_flip;
get_flip_cfg(tx_type, &ud_flip, &lr_flip);
load_buffer_16xn_avx2(input, in, stride, 8, 2, ud_flip, lr_flip);
round_shift_32_8xn_avx2(in, 16, shift[0], 1);
col_txfm(in, out, bit, 2, 2);
round_shift_32_8xn_avx2(out, 16, shift[1], 1);
fwd_txfm_transpose_8x8_avx2(out, in, 2, 1);
fwd_txfm_transpose_8x8_avx2(&out[1], &in[8], 2, 1);
row_txfm(in, out, bit, 1, 1);
fwd_txfm_transpose_8x8_avx2(out, in, 1, 2);
fwd_txfm_transpose_8x8_avx2(&out[8], &in[1], 1, 2);
av1_round_shift_rect_array_32_avx2(in, in, 16, -shift[2], NewSqrt2);
store_buffer_avx2(in, coeff, 8, 16);
(void)bd;
}
void av1_fwd_txfm2d_16x16_avx2(const int16_t *input, int32_t *coeff, int stride,
TX_TYPE tx_type, int bd) {
__m256i in[32], out[32];
const TX_SIZE tx_size = TX_16X16;
const int8_t *shift = av1_fwd_txfm_shift_ls[tx_size];
const int txw_idx = get_txw_idx(tx_size);
const int txh_idx = get_txh_idx(tx_size);
const int width = tx_size_wide[tx_size];
const int height = tx_size_high[tx_size];
const int width_div8 = (width >> 3);
const int width_div16 = (width >> 4);
const int size = (height << 1);
switch (tx_type) {
case DCT_DCT:
load_buffer_16xn_avx2(input, in, stride, height, width_div8, 0, 0);
round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
fdct16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
fwd_txfm_transpose_16x16_avx2(out, in);
fdct16_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
width_div8);
fwd_txfm_transpose_16x16_avx2(out, in);
store_buffer_avx2(in, coeff, 8, 32);
break;
case ADST_DCT:
load_buffer_16xn_avx2(input, in, stride, height, width_div8, 0, 0);
round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
fadst16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
fwd_txfm_transpose_16x16_avx2(out, in);
fdct16_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
width_div8);
fwd_txfm_transpose_16x16_avx2(out, in);
store_buffer_avx2(in, coeff, 8, 32);
break;
case DCT_ADST:
load_buffer_16xn_avx2(input, in, stride, height, width_div8, 0, 0);
round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
fdct16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
fwd_txfm_transpose_16x16_avx2(out, in);
fadst16_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
width_div8);
fwd_txfm_transpose_16x16_avx2(out, in);
store_buffer_avx2(in, coeff, 8, 32);
break;
case ADST_ADST:
load_buffer_16xn_avx2(input, in, stride, height, width_div8, 0, 0);
round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
fadst16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
fwd_txfm_transpose_16x16_avx2(out, in);
fadst16_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
width_div8);
fwd_txfm_transpose_16x16_avx2(out, in);
store_buffer_avx2(in, coeff, 8, 32);
break;
case FLIPADST_DCT:
load_buffer_16xn_avx2(input, in, stride, height, width_div8, 1, 0);
round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
fadst16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
fwd_txfm_transpose_16x16_avx2(out, in);
fdct16_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
width_div8);
fwd_txfm_transpose_16x16_avx2(out, in);
store_buffer_avx2(in, coeff, 8, 32);
break;
case DCT_FLIPADST:
load_buffer_16xn_avx2(input, in, stride, height, width_div8, 0, 1);
round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
fdct16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
fwd_txfm_transpose_16x16_avx2(out, in);
fadst16_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
width_div8);
fwd_txfm_transpose_16x16_avx2(out, in);
store_buffer_avx2(in, coeff, 8, 32);
break;
case FLIPADST_FLIPADST:
load_buffer_16xn_avx2(input, in, stride, height, width_div8, 1, 1);
round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
fadst16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
fwd_txfm_transpose_16x16_avx2(out, in);
fadst16_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
width_div8);
fwd_txfm_transpose_16x16_avx2(out, in);
store_buffer_avx2(in, coeff, 8, 32);
break;
case ADST_FLIPADST:
load_buffer_16xn_avx2(input, in, stride, height, width_div8, 0, 1);
round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
fadst16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
fwd_txfm_transpose_16x16_avx2(out, in);
fadst16_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
width_div8);
fwd_txfm_transpose_16x16_avx2(out, in);
store_buffer_avx2(in, coeff, 8, 32);
break;
case FLIPADST_ADST:
load_buffer_16xn_avx2(input, in, stride, height, width_div8, 1, 0);
round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
fadst16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
fwd_txfm_transpose_16x16_avx2(out, in);
fadst16_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
width_div8);
fwd_txfm_transpose_16x16_avx2(out, in);
store_buffer_avx2(in, coeff, 8, 32);
break;
case IDTX:
load_buffer_16xn_avx2(input, in, stride, height, width_div8, 0, 0);
round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
idtx16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
idtx16_avx2(out, in, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
width_div8);
store_buffer_avx2(in, coeff, 8, 32);
break;
case V_DCT:
load_buffer_16xn_avx2(input, in, stride, height, width_div8, 0, 0);
round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
fdct16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
idtx16_avx2(out, in, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
width_div8);
store_buffer_avx2(in, coeff, 8, 32);
break;
case H_DCT:
load_buffer_16xn_avx2(input, in, stride, height, width_div8, 0, 0);
round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
idtx16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
fwd_txfm_transpose_16x16_avx2(out, in);
fdct16_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
width_div8);
fwd_txfm_transpose_16x16_avx2(out, in);
store_buffer_avx2(in, coeff, 8, 32);
break;
case V_ADST:
load_buffer_16xn_avx2(input, in, stride, height, width_div8, 0, 0);
round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
fadst16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
idtx16_avx2(out, in, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
width_div8);
store_buffer_avx2(in, coeff, 8, 32);
break;
case H_ADST:
load_buffer_16xn_avx2(input, in, stride, height, width_div8, 0, 0);
round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
idtx16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
fwd_txfm_transpose_16x16_avx2(out, in);
fadst16_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
width_div8);
fwd_txfm_transpose_16x16_avx2(out, in);
store_buffer_avx2(in, coeff, 8, 32);
break;
case V_FLIPADST:
load_buffer_16xn_avx2(input, in, stride, height, width_div8, 1, 0);
round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
fadst16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
idtx16_avx2(out, in, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
width_div8);
store_buffer_avx2(in, coeff, 8, 32);
break;
case H_FLIPADST:
load_buffer_16xn_avx2(input, in, stride, height, width_div8, 0, 1);
round_shift_32_8xn_avx2(in, size, shift[0], width_div16);
idtx16_avx2(in, out, av1_fwd_cos_bit_col[txw_idx][txh_idx], width_div8,
width_div8);
round_shift_32_8xn_avx2(out, size, shift[1], width_div16);
fwd_txfm_transpose_16x16_avx2(out, in);
fadst16_avx2(in, out, av1_fwd_cos_bit_row[txw_idx][txh_idx], width_div8,
width_div8);
fwd_txfm_transpose_16x16_avx2(out, in);
store_buffer_avx2(in, coeff, 8, 32);
break;
default: assert(0);
}
(void)bd;
}
static INLINE void fdct32_avx2(__m256i *input, __m256i *output,
const int8_t cos_bit, const int instride,
const int outstride) {
__m256i buf0[32];
__m256i buf1[32];
const int32_t *cospi;
int startidx = 0 * instride;
int endidx = 31 * instride;
// stage 0
// stage 1
buf1[0] = _mm256_add_epi32(input[startidx], input[endidx]);
buf1[31] = _mm256_sub_epi32(input[startidx], input[endidx]);
startidx += instride;
endidx -= instride;
buf1[1] = _mm256_add_epi32(input[startidx], input[endidx]);
buf1[30] = _mm256_sub_epi32(input[startidx], input[endidx]);
startidx += instride;
endidx -= instride;
buf1[2] = _mm256_add_epi32(input[startidx], input[endidx]);
buf1[29] = _mm256_sub_epi32(input[startidx], input[endidx]);
startidx += instride;
endidx -= instride;
buf1[3] = _mm256_add_epi32(input[startidx], input[endidx]);
buf1[28] = _mm256_sub_epi32(input[startidx], input[endidx]);
startidx += instride;
endidx -= instride;
buf1[4] = _mm256_add_epi32(input[startidx], input[endidx]);
buf1[27] = _mm256_sub_epi32(input[startidx], input[endidx]);
startidx += instride;
endidx -= instride;
buf1[5] = _mm256_add_epi32(input[startidx], input[endidx]);
buf1[26] = _mm256_sub_epi32(input[startidx], input[endidx]);
startidx += instride;
endidx -= instride;
buf1[6] = _mm256_add_epi32(input[startidx], input[endidx]);
buf1[25] = _mm256_sub_epi32(input[startidx], input[endidx]);
startidx += instride;
endidx -= instride;
buf1[7] = _mm256_add_epi32(input[startidx], input[endidx]);
buf1[24] = _mm256_sub_epi32(input[startidx], input[endidx]);
startidx += instride;
endidx -= instride;
buf1[8] = _mm256_add_epi32(input[startidx], input[endidx]);
buf1[23] = _mm256_sub_epi32(input[startidx], input[endidx]);
startidx += instride;
endidx -= instride;
buf1[9] = _mm256_add_epi32(input[startidx], input[endidx]);
buf1[22] = _mm256_sub_epi32(input[startidx], input[endidx]);
startidx += instride;
endidx -= instride;
buf1[10] = _mm256_add_epi32(input[startidx], input[endidx]);
buf1[21] = _mm256_sub_epi32(input[startidx], input[endidx]);
startidx += instride;
endidx -= instride;
buf1[11] = _mm256_add_epi32(input[startidx], input[endidx]);
buf1[20] = _mm256_sub_epi32(input[startidx], input[endidx]);
startidx += instride;
endidx -= instride;
buf1[12] = _mm256_add_epi32(input[startidx], input[endidx]);
buf1[19] = _mm256_sub_epi32(input[startidx], input[endidx]);
startidx += instride;
endidx -= instride;
buf1[13] = _mm256_add_epi32(input[startidx], input[endidx]);
buf1[18] = _mm256_sub_epi32(input[startidx], input[endidx]);
startidx += instride;
endidx -= instride;
buf1[14] = _mm256_add_epi32(input[startidx], input[endidx]);
buf1[17] = _mm256_sub_epi32(input[startidx], input[endidx]);
startidx += instride;
endidx -= instride;
buf1[15] = _mm256_add_epi32(input[startidx], input[endidx]);
buf1[16] = _mm256_sub_epi32(input[startidx], input[endidx]);
// stage 2
cospi = cospi_arr(cos_bit);
buf0[0] = _mm256_add_epi32(buf1[0], buf1[15]);
buf0[15] = _mm256_sub_epi32(buf1[0], buf1[15]);
buf0[1] = _mm256_add_epi32(buf1[1], buf1[14]);
buf0[14] = _mm256_sub_epi32(buf1[1], buf1[14]);
buf0[2] = _mm256_add_epi32(buf1[2], buf1[13]);
buf0[13] = _mm256_sub_epi32(buf1[2], buf1[13]);
buf0[3] = _mm256_add_epi32(buf1[3], buf1[12]);
buf0[12] = _mm256_sub_epi32(buf1[3], buf1[12]);
buf0[4] = _mm256_add_epi32(buf1[4], buf1[11]);
buf0[11] = _mm256_sub_epi32(buf1[4], buf1[11]);
buf0[5] = _mm256_add_epi32(buf1[5], buf1[10]);
buf0[10] = _mm256_sub_epi32(buf1[5], buf1[10]);
buf0[6] = _mm256_add_epi32(buf1[6], buf1[9]);
buf0[9] = _mm256_sub_epi32(buf1[6], buf1[9]);
buf0[7] = _mm256_add_epi32(buf1[7], buf1[8]);
buf0[8] = _mm256_sub_epi32(buf1[7], buf1[8]);
buf0[16] = buf1[16];
buf0[17] = buf1[17];
buf0[18] = buf1[18];
buf0[19] = buf1[19];
btf_32_avx2_type0(-cospi[32], cospi[32], buf1[20], buf1[27], buf0[20],
buf0[27], cos_bit);
btf_32_avx2_type0(-cospi[32], cospi[32], buf1[21], buf1[26], buf0[21],
buf0[26], cos_bit);
btf_32_avx2_type0(-cospi[32], cospi[32], buf1[22], buf1[25], buf0[22],
buf0[25], cos_bit);
btf_32_avx2_type0(-cospi[32], cospi[32], buf1[23], buf1[24], buf0[23],
buf0[24], cos_bit);
buf0[28] = buf1[28];
buf0[29] = buf1[29];
buf0[30] = buf1[30];
buf0[31] = buf1[31];
// stage 3
cospi = cospi_arr(cos_bit);
buf1[0] = _mm256_add_epi32(buf0[0], buf0[7]);
buf1[7] = _mm256_sub_epi32(buf0[0], buf0[7]);
buf1[1] = _mm256_add_epi32(buf0[1], buf0[6]);
buf1[6] = _mm256_sub_epi32(buf0[1], buf0[6]);
buf1[2] = _mm256_add_epi32(buf0[2], buf0[5]);
buf1[5] = _mm256_sub_epi32(buf0[2], buf0[5]);
buf1[3] = _mm256_add_epi32(buf0[3], buf0[4]);
buf1[4] = _mm256_sub_epi32(buf0[3], buf0[4]);
buf1[8] = buf0[8];
buf1[9] = buf0[9];
btf_32_avx2_type0(-cospi[32], cospi[32], buf0[10], buf0[13], buf1[10],
buf1[13], cos_bit);
btf_32_avx2_type0(-cospi[32], cospi[32], buf0[11], buf0[12], buf1[11],
buf1[12], cos_bit);
buf1[14] = buf0[14];
buf1[15] = buf0[15];
buf1[16] = _mm256_add_epi32(buf0[16], buf0[23]);
buf1[23] = _mm256_sub_epi32(buf0[16], buf0[23]);
buf1[17] = _mm256_add_epi32(buf0[17], buf0[22]);
buf1[22] = _mm256_sub_epi32(buf0[17], buf0[22]);
buf1[18] = _mm256_add_epi32(buf0[18], buf0[21]);
buf1[21] = _mm256_sub_epi32(buf0[18], buf0[21]);
buf1[19] = _mm256_add_epi32(buf0[19], buf0[20]);
buf1[20] = _mm256_sub_epi32(buf0[19], buf0[20]);
buf1[24] = _mm256_sub_epi32(buf0[31], buf0[24]);
buf1[31] = _mm256_add_epi32(buf0[31], buf0[24]);
buf1[25] = _mm256_sub_epi32(buf0[30], buf0[25]);
buf1[30] = _mm256_add_epi32(buf0[30], buf0[25]);
buf1[26] = _mm256_sub_epi32(buf0[29], buf0[26]);
buf1[29] = _mm256_add_epi32(buf0[29], buf0[26]);
buf1[27] = _mm256_sub_epi32(buf0[28], buf0[27]);
buf1[28] = _mm256_add_epi32(buf0[28], buf0[27]);
// stage 4
cospi = cospi_arr(cos_bit);
buf0[0] = _mm256_add_epi32(buf1[0], buf1[3]);
buf0[3] = _mm256_sub_epi32(buf1[0], buf1[3]);
buf0[1] = _mm256_add_epi32(buf1[1], buf1[2]);
buf0[2] = _mm256_sub_epi32(buf1[1], buf1[2]);
buf0[4] = buf1[4];
btf_32_avx2_type0(-cospi[32], cospi[32], buf1[5], buf1[6], buf0[5], buf0[6],
cos_bit);
buf0[7] = buf1[7];
buf0[8] = _mm256_add_epi32(buf1[8], buf1[11]);
buf0[11] = _mm256_sub_epi32(buf1[8], buf1[11]);
buf0[9] = _mm256_add_epi32(buf1[9], buf1[10]);
buf0[10] = _mm256_sub_epi32(buf1[9], buf1[10]);
buf0[12] = _mm256_sub_epi32(buf1[15], buf1[12]);
buf0[15] = _mm256_add_epi32(buf1[15], buf1[12]);
buf0[13] = _mm256_sub_epi32(buf1[14], buf1[13]);
buf0[14] = _mm256_add_epi32(buf1[14], buf1[13]);
buf0[16] = buf1[16];
buf0[17] = buf1[17];
btf_32_avx2_type0(-cospi[16], cospi[48], buf1[18], buf1[29], buf0[18],
buf0[29], cos_bit);
btf_32_avx2_type0(-cospi[16], cospi[48], buf1[19], buf1[28], buf0[19],
buf0[28], cos_bit);
btf_32_avx2_type0(-cospi[48], -cospi[16], buf1[20], buf1[27], buf0[20],
buf0[27], cos_bit);
btf_32_avx2_type0(-cospi[48], -cospi[16], buf1[21], buf1[26], buf0[21],
buf0[26], cos_bit);
buf0[22] = buf1[22];
buf0[23] = buf1[23];
buf0[24] = buf1[24];
buf0[25] = buf1[25];
buf0[30] = buf1[30];
buf0[31] = buf1[31];
// stage 5
cospi = cospi_arr(cos_bit);
btf_32_avx2_type0(cospi[32], cospi[32], buf0[0], buf0[1], buf1[0], buf1[1],
cos_bit);
btf_32_avx2_type0(cospi[16], cospi[48], buf0[3], buf0[2], buf1[2], buf1[3],
cos_bit);
buf1[4] = _mm256_add_epi32(buf0[4], buf0[5]);
buf1[5] = _mm256_sub_epi32(buf0[4], buf0[5]);
buf1[6] = _mm256_sub_epi32(buf0[7], buf0[6]);
buf1[7] = _mm256_add_epi32(buf0[7], buf0[6]);
buf1[8] = buf0[8];
btf_32_avx2_type0(-cospi[16], cospi[48], buf0[9], buf0[14], buf1[9], buf1[14],
cos_bit);
btf_32_avx2_type0(-cospi[48], -cospi[16], buf0[10], buf0[13], buf1[10],
buf1[13], cos_bit);
buf1[11] = buf0[11];
buf1[12] = buf0[12];
buf1[15] = buf0[15];
buf1[16] = _mm256_add_epi32(buf0[16], buf0[19]);
buf1[19] = _mm256_sub_epi32(buf0[16], buf0[19]);
buf1[17] = _mm256_add_epi32(buf0[17], buf0[18]);
buf1[18] = _mm256_sub_epi32(buf0[17], buf0[18]);
buf1[20] = _mm256_sub_epi32(buf0[23], buf0[20]);
buf1[23] = _mm256_add_epi32(buf0[23], buf0[20]);
buf1[21] = _mm256_sub_epi32(buf0[22], buf0[21]);
buf1[22] = _mm256_add_epi32(buf0[22], buf0[21]);
buf1[24] = _mm256_add_epi32(buf0[24], buf0[27]);
buf1[27] = _mm256_sub_epi32(buf0[24], buf0[27]);
buf1[25] = _mm256_add_epi32(buf0[25], buf0[26]);
buf1[26] = _mm256_sub_epi32(buf0[25], buf0[26]);
buf1[28] = _mm256_sub_epi32(buf0[31], buf0[28]);
buf1[31] = _mm256_add_epi32(buf0[31], buf0[28]);
buf1[29] = _mm256_sub_epi32(buf0[30], buf0[29]);
buf1[30] = _mm256_add_epi32(buf0[30], buf0[29]);
// stage 6
cospi = cospi_arr(cos_bit);
buf0[0] = buf1[0];
buf0[1] = buf1[1];
buf0[2] = buf1[2];
buf0[3] = buf1[3];
btf_32_avx2_type0(cospi[8], cospi[56], buf1[7], buf1[4], buf0[4], buf0[7],
cos_bit);
btf_32_avx2_type0(cospi[40], cospi[24], buf1[6], buf1[5], buf0[5], buf0[6],
cos_bit);
buf0[8] = _mm256_add_epi32(buf1[8], buf1[9]);
buf0[9] = _mm256_sub_epi32(buf1[8], buf1[9]);
buf0[10] = _mm256_sub_epi32(buf1[11], buf1[10]);
buf0[11] = _mm256_add_epi32(buf1[11], buf1[10]);
buf0[12] = _mm256_add_epi32(buf1[12], buf1[13]);
buf0[13] = _mm256_sub_epi32(buf1[12], buf1[13]);
buf0[14] = _mm256_sub_epi32(buf1[15], buf1[14]);
buf0[15] = _mm256_add_epi32(buf1[15], buf1[14]);
buf0[16] = buf1[16];
btf_32_avx2_type0(-cospi[8], cospi[56], buf1[17], buf1[30], buf0[17],
buf0[30], cos_bit);
btf_32_avx2_type0(-cospi[56], -cospi[8], buf1[18], buf1[29], buf0[18],
buf0[29], cos_bit);
buf0[19] = buf1[19];
buf0[20] = buf1[20];
btf_32_avx2_type0(-cospi[40], cospi[24], buf1[21], buf1[26], buf0[21],
buf0[26], cos_bit);
btf_32_avx2_type0(-cospi[24], -cospi[40], buf1[22], buf1[25], buf0[22],
buf0[25], cos_bit);
buf0[23] = buf1[23];
buf0[24] = buf1[24];
buf0[27] = buf1[27];
buf0[28] = buf1[28];
buf0[31] = buf1[31];
// stage 7
cospi = cospi_arr(cos_bit);
buf1[0] = buf0[0];
buf1[1] = buf0[1];
buf1[2] = buf0[2];
buf1[3] = buf0[3];
buf1[4] = buf0[4];
buf1[5] = buf0[5];
buf1[6] = buf0[6];
buf1[7] = buf0[7];
btf_32_avx2_type0(cospi[4], cospi[60], buf0[15], buf0[8], buf1[8], buf1[15],
cos_bit);
btf_32_avx2_type0(cospi[36], cospi[28], buf0[14], buf0[9], buf1[9], buf1[14],
cos_bit);
btf_32_avx2_type0(cospi[20], cospi[44], buf0[13], buf0[10], buf1[10],
buf1[13], cos_bit);
btf_32_avx2_type0(cospi[52], cospi[12], buf0[12], buf0[11], buf1[11],
buf1[12], cos_bit);
buf1[16] = _mm256_add_epi32(buf0[16], buf0[17]);
buf1[17] = _mm256_sub_epi32(buf0[16], buf0[17]);
buf1[18] = _mm256_sub_epi32(buf0[19], buf0[18]);
buf1[19] = _mm256_add_epi32(buf0[19], buf0[18]);
buf1[20] = _mm256_add_epi32(buf0[20], buf0[21]);
buf1[21] = _mm256_sub_epi32(buf0[20], buf0[21]);
buf1[22] = _mm256_sub_epi32(buf0[23], buf0[22]);
buf1[23] = _mm256_add_epi32(buf0[23], buf0[22]);
buf1[24] = _mm256_add_epi32(buf0[24], buf0[25]);
buf1[25] = _mm256_sub_epi32(buf0[24], buf0[25]);
buf1[26] = _mm256_sub_epi32(buf0[27], buf0[26]);
buf1[27] = _mm256_add_epi32(buf0[27], buf0[26]);
buf1[28] = _mm256_add_epi32(buf0[28], buf0[29]);
buf1[29] = _mm256_sub_epi32(buf0[28], buf0[29]);
buf1[30] = _mm256_sub_epi32(buf0[31], buf0[30]);
buf1[31] = _mm256_add_epi32(buf0[31], buf0[30]);
// stage 8
cospi = cospi_arr(cos_bit);
buf0[0] = buf1[0];
buf0[1] = buf1[1];
buf0[2] = buf1[2];
buf0[3] = buf1[3];
buf0[4] = buf1[4];
buf0[5] = buf1[5];
buf0[6] = buf1[6];
buf0[7] = buf1[7];
buf0[8] = buf1[8];
buf0[9] = buf1[9];
buf0[10] = buf1[10];
buf0[11] = buf1[11];
buf0[12] = buf1[12];
buf0[13] = buf1[13];
buf0[14] = buf1[14];
buf0[15] = buf1[15];
btf_32_avx2_type0(cospi[2], cospi[62], buf1[31], buf1[16], buf0[16], buf0[31],
cos_bit);
btf_32_avx2_type0(cospi[34], cospi[30], buf1[30], buf1[17], buf0[17],
buf0[30], cos_bit);
btf_32_avx2_type0(cospi[18], cospi[46], buf1[29], buf1[18], buf0[18],
buf0[29], cos_bit);
btf_32_avx2_type0(cospi[50], cospi[14], buf1[28], buf1[19], buf0[19],
buf0[28], cos_bit);
btf_32_avx2_type0(cospi[10], cospi[54], buf1[27], buf1[20], buf0[20],
buf0[27], cos_bit);
btf_32_avx2_type0(cospi[42], cospi[22], buf1[26], buf1[21], buf0[21],
buf0[26], cos_bit);
btf_32_avx2_type0(cospi[26], cospi[38], buf1[25], buf1[22], buf0[22],
buf0[25], cos_bit);
btf_32_avx2_type0(cospi[58], cospi[6], buf1[24], buf1[23], buf0[23], buf0[24],
cos_bit);
startidx = 0 * outstride;
endidx = 31 * outstride;
// stage 9
output[startidx] = buf0[0];
output[endidx] = buf0[31];
startidx += outstride;
endidx -= outstride;
output[startidx] = buf0[16];
output[endidx] = buf0[15];
startidx += outstride;
endidx -= outstride;
output[startidx] = buf0[8];
output[endidx] = buf0[23];
startidx += outstride;
endidx -= outstride;
output[startidx] = buf0[24];
output[endidx] = buf0[7];
startidx += outstride;
endidx -= outstride;
output[startidx] = buf0[4];
output[endidx] = buf0[27];
startidx += outstride;
endidx -= outstride;
output[startidx] = buf0[20];
output[endidx] = buf0[11];
startidx += outstride;
endidx -= outstride;
output[startidx] = buf0[12];
output[endidx] = buf0[19];
startidx += outstride;
endidx -= outstride;
output[startidx] = buf0[28];
output[endidx] = buf0[3];
startidx += outstride;
endidx -= outstride;
output[startidx] = buf0[2];
output[endidx] = buf0[29];
startidx += outstride;
endidx -= outstride;
output[startidx] = buf0[18];
output[endidx] = buf0[13];
startidx += outstride;
endidx -= outstride;
output[startidx] = buf0[10];
output[endidx] = buf0[21];
startidx += outstride;
endidx -= outstride;
output[startidx] = buf0[26];
output[endidx] = buf0[5];
startidx += outstride;
endidx -= outstride;
output[startidx] = buf0[6];
output[endidx]