/*
* 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 "config/aom_config.h"
#include "config/av1_rtcd.h"
#include "av1/common/av1_inv_txfm1d_cfg.h"
#include "av1/common/x86/av1_txfm_sse2.h"
#include "av1/common/x86/av1_inv_txfm_avx2.h"
#include "av1/common/x86/av1_inv_txfm_ssse3.h"
// TODO(venkatsanampudi@ittiam.com): move this to header file
// Sqrt2, Sqrt2^2, Sqrt2^3, Sqrt2^4, Sqrt2^5
static const int32_t NewSqrt2list[TX_SIZES] = { 5793 , 2 * 4096 , 2 * 5793 ,
4 * 4096 , 4 * 5793 };
static inline void idct16_stage5_avx2(__m256i *x1, const int32_t *cospi,
const __m256i _r, int8_t cos_bit) {
const __m256i cospi_m32_p32 = pair_set_w16_epi16(-cospi[32 ], cospi[32 ]);
const __m256i cospi_p32_p32 = pair_set_w16_epi16(cospi[32 ], cospi[32 ]);
btf_16_adds_subs_avx2(&x1[0 ], &x1[3 ]);
btf_16_adds_subs_avx2(&x1[1 ], &x1[2 ]);
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x1[5 ], &x1[yle='color: green'>6 ], _r, cos_bit);
btf_16_adds_subs_avx2(&x1[8 ], &x1[11 ]);
btf_16_adds_subs_avx2(&x1[9 ], &x1[10 ]);
btf_16_adds_subs_avx2(&x1[15 ], &x1[12 ]);
btf_16_adds_subs_avx2(&x1[14 ], &x1[13 ]);
}
static inline void idct16_stage6_avx2(__m256i *x, const int32_t *cospi,
const __m256i _r, int8_t cos_bit) {
const __m256i cospi_m32_p32 = pair_set_w16_epi16(-cospi[32 ], cospi[32 ]);
const __m256i cospi_p32_p32 = pair_set_w16_epi16(cospi[32 ], cospi[32 ]);
btf_16_adds_subs_avx2(&x[0 ], &x[7 ]);
btf_16_adds_subs_avx2(&x[1 ], &x[6 ]);
btf_16_adds_subs_avx2(&x[2 ], &x[5 ]);
btf_16_adds_subs_avx2(&x[3 ], &x[4 ]);
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x[10 ], &x[tyle='color: green'>13 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x[11 ], &x[tyle='color: green'>12 ], _r, cos_bit);
}
static inline void idct16_stage7_avx2(__m256i *output, __m256i *x1) {
btf_16_adds_subs_out_avx2(&output[0 ], &output[>15 ], x1[0 ], x1[15 ]);
btf_16_adds_subs_out_avx2(&output[1 ], &output[>14 ], x1[1 ], x1[14 ]);
btf_16_adds_subs_out_avx2(&output[2 ], &output[>13 ], x1[2 ], x1[13 ]);
btf_16_adds_subs_out_avx2(&output[3 ], &output[>12 ], x1[3 ], x1[12 ]);
btf_16_adds_subs_out_avx2(&output[4 ], &output[>11 ], x1[4 ], x1[11 ]);
btf_16_adds_subs_out_avx2(&output[5 ], &output[>10 ], x1[5 ], x1[10 ]);
btf_16_adds_subs_out_avx2(&output[6 ], &output[>9 ], x1[6 ], x1[9 ]);
btf_16_adds_subs_out_avx2(&output[7 ], &output[>8 ], x1[7 ], x1[8 ]);
}
static void idct16_avx2(const __m256i *input, __m256i *output) {
const int32_t *cospi = cospi_arr(INV_COS_BIT);
const __m256i _r = _mm256_set1_epi32(1 << (INV_COS_BIT - 1 ));
__m256i cospi_p60_m04 = pair_set_w16_epi16(cospi[60 ], -cospi[4 ]);
__m256i cospi_p04_p60 = pair_set_w16_epi16(cospi[4 ], cospi[60 ]);
__m256i cospi_p28_m36 = pair_set_w16_epi16(cospi[28 ], -cospi[36 ]);
__m256i cospi_p36_p28 = pair_set_w16_epi16(cospi[36 ], cospi[28 ]);
__m256i cospi_p44_m20 = pair_set_w16_epi16(cospi[44 ], -cospi[20 ]);
__m256i cospi_p20_p44 = pair_set_w16_epi16(cospi[20 ], cospi[44 ]);
__m256i cospi_p12_m52 = pair_set_w16_epi16(cospi[12 ], -cospi[52 ]);
__m256i cospi_p52_p12 = pair_set_w16_epi16(cospi[52 ], cospi[12 ]);
__m256i cospi_p56_m08 = pair_set_w16_epi16(cospi[56 ], -cospi[8 ]);
__m256i cospi_p08_p56 = pair_set_w16_epi16(cospi[8 ], cospi[56 ]);
__m256i cospi_p24_m40 = pair_set_w16_epi16(cospi[24 ], -cospi[40 ]);
__m256i cospi_p40_p24 = pair_set_w16_epi16(cospi[40 ], cospi[24 ]);
__m256i cospi_p32_p32 = pair_set_w16_epi16(cospi[32 ], cospi[32 ]);
__m256i cospi_p32_m32 = pair_set_w16_epi16(cospi[32 ], -cospi[32 ]);
__m256i cospi_p48_m16 = pair_set_w16_epi16(cospi[48 ], -cospi[16 ]);
__m256i cospi_p16_p48 = pair_set_w16_epi16(cospi[16 ], cospi[48 ]);
__m256i cospi_m16_p48 = pair_set_w16_epi16(-cospi[16 ], cospi[48 ]);
__m256i cospi_p48_p16 = pair_set_w16_epi16(cospi[48 ], cospi[16 ]);
__m256i cospi_m48_m16 = pair_set_w16_epi16(-cospi[48 ], -cospi[16 ]);
// stage 1
__m256i x1[16 ];
x1[0 ] = input[0 ];
x1[1 ] = input[8 ];
x1[2 ] = input[4 ];
x1[3 ] = input[12 ];
x1[4 ] = input[2 ];
x1[5 ] = input[10 ];
x1[6 ] = input[6 ];
x1[7 ] = input[14 ];
x1[8 ] = input[1 ];
x1[9 ] = input[9 ];
x1[10 ] = input[5 ];
x1[11 ] = input[13 ];
x1[12 ] = input[3 ];
x1[13 ] = input[11 ];
x1[14 ] = input[7 ];
x1[15 ] = input[15 ];
// stage 2
btf_16_w16_avx2(cospi_p60_m04, cospi_p04_p60, &x1[8 ], &x1[yle='color: green'>15 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_p28_m36, cospi_p36_p28, &x1[9 ], &x1[yle='color: green'>14 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_p44_m20, cospi_p20_p44, &x1[10 ], &x1[tyle='color: green'>13 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_p12_m52, cospi_p52_p12, &x1[11 ], &x1[tyle='color: green'>12 ], _r,
INV_COS_BIT);
// stage 3
btf_16_w16_avx2(cospi_p56_m08, cospi_p08_p56, &x1[4 ], &x1[yle='color: green'>7 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_p24_m40, cospi_p40_p24, &x1[5 ], &x1[yle='color: green'>6 ], _r,
INV_COS_BIT);
btf_16_adds_subs_avx2(&x1[8 ], &x1[9 ]);
btf_16_adds_subs_avx2(&x1[11 ], &x1[10 ]);
btf_16_adds_subs_avx2(&x1[12 ], &x1[13 ]);
btf_16_adds_subs_avx2(&x1[15 ], &x1[14 ]);
// stage 4
btf_16_w16_avx2(cospi_p32_p32, cospi_p32_m32, &x1[0 ], &x1[yle='color: green'>1 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_p48_m16, cospi_p16_p48, &x1[2 ], &x1[yle='color: green'>3 ], _r,
INV_COS_BIT);
btf_16_adds_subs_avx2(&x1[4 ], &x1[5 ]);
btf_16_adds_subs_avx2(&x1[7 ], &x1[6 ]);
btf_16_w16_avx2(cospi_m16_p48, cospi_p48_p16, &x1[9 ], &x1[yle='color: green'>14 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_m48_m16, cospi_m16_p48, &x1[10 ], &x1[tyle='color: green'>13 ], _r,
INV_COS_BIT);
idct16_stage5_avx2(x1, cospi, _r, INV_COS_BIT);
idct16_stage6_avx2(x1, cospi, _r, INV_COS_BIT);
idct16_stage7_avx2(output, x1);
}
static void idct16_low8_avx2(const __m256i *input, __m256i *output) {
const int32_t *cospi = cospi_arr(INV_COS_BIT);
const __m256i _r = _mm256_set1_epi32(1 << (INV_COS_BIT - 1 ));
const __m256i cospi_m16_p48 = pair_set_w16_epi16(-cospi[16 ], cospi[48 ]);
const __m256i cospi_p48_p16 = pair_set_w16_epi16(cospi[48 ], cospi[16 ]);
const __m256i cospi_m48_m16 = pair_set_w16_epi16(-cospi[48 ], -cospi[16 ]);
// stage 1
__m256i x1[16 ];
x1[0 ] = input[0 ];
x1[2 ] = input[4 ];
x1[4 ] = input[2 ];
x1[6 ] = input[6 ];
x1[8 ] = input[1 ];
x1[10 ] = input[5 ];
x1[12 ] = input[3 ];
x1[14 ] = input[7 ];
// stage 2
btf_16_w16_0_avx2(cospi[60 ], cospi[4 ], x1[8 ], x1[8 ], x1[15 ]);
btf_16_w16_0_avx2(-cospi[36 ], cospi[28 ], x1[14 ], x1[9 ], x1[14 ]);
btf_16_w16_0_avx2(cospi[44 ], cospi[20 ], x1[10 ], x1[10 ], x1[13 ]);
btf_16_w16_0_avx2(-cospi[52 ], cospi[12 ], x1[12 ], x1[11 ], x1[12 ]);
// stage 3
btf_16_w16_0_avx2(cospi[56 ], cospi[8 ], x1[4 ], x1[4 ], x1[7 ]);
btf_16_w16_0_avx2(-cospi[40 ], cospi[24 ], x1[6 ], x1[5 ], x1[6 ]);
btf_16_adds_subs_avx2(&x1[8 ], &x1[9 ]);
btf_16_adds_subs_avx2(&x1[11 ], &x1[10 ]);
btf_16_adds_subs_avx2(&x1[12 ], &x1[13 ]);
btf_16_adds_subs_avx2(&x1[15 ], &x1[14 ]);
// stage 4
btf_16_w16_0_avx2(cospi[32 ], cospi[32 ], x1[0 ], x1[0 ], x1[1 ]);
btf_16_w16_0_avx2(cospi[48 ], cospi[16 ], x1[2 ], x1[2 ], x1[3 ]);
btf_16_adds_subs_avx2(&x1[4 ], &x1[5 ]);
btf_16_adds_subs_avx2(&x1[7 ], &x1[6 ]);
btf_16_w16_avx2(cospi_m16_p48, cospi_p48_p16, &x1[9 ], &x1[yle='color: green'>14 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_m48_m16, cospi_m16_p48, &x1[10 ], &x1[tyle='color: green'>13 ], _r,
INV_COS_BIT);
idct16_stage5_avx2(x1, cospi, _r, INV_COS_BIT);
idct16_stage6_avx2(x1, cospi, _r, INV_COS_BIT);
idct16_stage7_avx2(output, x1);
}
static void idct16_low1_avx2(const __m256i *input, __m256i *output) {
const int32_t *cospi = cospi_arr(INV_COS_BIT);
// stage 1
__m256i x1[2 ];
x1[0 ] = input[0 ];
// stage 2
// stage 3
// stage 4
btf_16_w16_0_avx2(cospi[32 ], cospi[32 ], x1[0 ], x1[0 ], x1[1 ]);
// stage 5
// stage 6
output[0 ] = x1[0 ];
output[1 ] = x1[1 ];
output[2 ] = x1[1 ];
output[3 ] = x1[0 ];
output[4 ] = x1[0 ];
output[5 ] = x1[1 ];
output[6 ] = x1[1 ];
output[7 ] = x1[0 ];
output[8 ] = x1[0 ];
output[9 ] = x1[1 ];
output[10 ] = x1[1 ];
output[11 ] = x1[0 ];
output[12 ] = x1[0 ];
output[13 ] = x1[1 ];
output[14 ] = x1[1 ];
output[15 ] = x1[0 ];
}
static inline void iadst16_stage3_avx2(__m256i *x) {
btf_16_adds_subs_avx2(&x[0 ], &x[8 ]);
btf_16_adds_subs_avx2(&x[1 ], &x[9 ]);
btf_16_adds_subs_avx2(&x[2 ], &x[10 ]);
btf_16_adds_subs_avx2(&x[3 ], &x[11 ]);
btf_16_adds_subs_avx2(&x[4 ], &x[12 ]);
btf_16_adds_subs_avx2(&x[5 ], &x[13 ]);
btf_16_adds_subs_avx2(&x[6 ], &x[14 ]);
btf_16_adds_subs_avx2(&x[7 ], &x[15 ]);
}
static inline void iadst16_stage4_avx2(__m256i *x, const int32_t *cospi,
const __m256i _r, int8_t cos_bit) {
const __m256i cospi_p08_p56 = pair_set_w16_epi16(cospi[8 ], cospi[56 ]);
const __m256i cospi_p56_m08 = pair_set_w16_epi16(cospi[56 ], -cospi[8 ]);
const __m256i cospi_p40_p24 = pair_set_w16_epi16(cospi[40 ], cospi[24 ]);
const __m256i cospi_p24_m40 = pair_set_w16_epi16(cospi[24 ], -cospi[40 ]);
const __m256i cospi_m56_p08 = pair_set_w16_epi16(-cospi[56 ], cospi[8 ]);
const __m256i cospi_m24_p40 = pair_set_w16_epi16(-cospi[24 ], cospi[40 ]);
btf_16_w16_avx2(cospi_p08_p56, cospi_p56_m08, &x[8 ], &x[yle='color: green'>9 ], _r, cos_bit);
btf_16_w16_avx2(cospi_p40_p24, cospi_p24_m40, &x[10 ], &x[tyle='color: green'>11 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m56_p08, cospi_p08_p56, &x[12 ], &x[tyle='color: green'>13 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m24_p40, cospi_p40_p24, &x[14 ], &x[tyle='color: green'>15 ], _r, cos_bit);
}
static inline void iadst16_stage5_avx2(__m256i *x) {
btf_16_adds_subs_avx2(&x[0 ], &x[4 ]);
btf_16_adds_subs_avx2(&x[1 ], &x[5 ]);
btf_16_adds_subs_avx2(&x[2 ], &x[6 ]);
btf_16_adds_subs_avx2(&x[3 ], &x[7 ]);
btf_16_adds_subs_avx2(&x[8 ], &x[12 ]);
btf_16_adds_subs_avx2(&x[9 ], &x[13 ]);
btf_16_adds_subs_avx2(&x[10 ], &x[14 ]);
btf_16_adds_subs_avx2(&x[11 ], &x[15 ]);
}
static inline void iadst16_stage6_avx2(__m256i *x, const int32_t *cospi,
const __m256i _r, int8_t cos_bit) {
const __m256i cospi_p16_p48 = pair_set_w16_epi16(cospi[16 ], cospi[48 ]);
const __m256i cospi_p48_m16 = pair_set_w16_epi16(cospi[48 ], -cospi[16 ]);
const __m256i cospi_m48_p16 = pair_set_w16_epi16(-cospi[48 ], cospi[16 ]);
btf_16_w16_avx2(cospi_p16_p48, cospi_p48_m16, &x[4 ], &x[yle='color: green'>5 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m48_p16, cospi_p16_p48, &x[6 ], &x[yle='color: green'>7 ], _r, cos_bit);
btf_16_w16_avx2(cospi_p16_p48, cospi_p48_m16, &x[12 ], &x[tyle='color: green'>13 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m48_p16, cospi_p16_p48, &x[14 ], &x[tyle='color: green'>15 ], _r, cos_bit);
}
static inline void iadst16_stage7_avx2(__m256i *x) {
btf_16_adds_subs_avx2(&x[0 ], &x[2 ]);
btf_16_adds_subs_avx2(&x[1 ], &x[3 ]);
btf_16_adds_subs_avx2(&x[4 ], &x[6 ]);
btf_16_adds_subs_avx2(&x[5 ], &x[7 ]);
btf_16_adds_subs_avx2(&x[8 ], &x[10 ]);
btf_16_adds_subs_avx2(&x[9 ], &x[11 ]);
btf_16_adds_subs_avx2(&x[12 ], &x[14 ]);
btf_16_adds_subs_avx2(&x[13 ], &x[15 ]);
}
static inline void iadst16_stage8_avx2(__m256i *x1, const int32_t *cospi,
const __m256i _r, int8_t cos_bit) {
const __m256i cospi_p32_p32 = pair_set_w16_epi16(cospi[32 ], cospi[32 ]);
const __m256i cospi_p32_m32 = pair_set_w16_epi16(cospi[32 ], -cospi[32 ]);
btf_16_w16_avx2(cospi_p32_p32, cospi_p32_m32, &x1[2 ], &x1[yle='color: green'>3 ], _r, cos_bit);
btf_16_w16_avx2(cospi_p32_p32, cospi_p32_m32, &x1[6 ], &x1[yle='color: green'>7 ], _r, cos_bit);
btf_16_w16_avx2(cospi_p32_p32, cospi_p32_m32, &x1[10 ], &x1[tyle='color: green'>11 ], _r, cos_bit);
btf_16_w16_avx2(cospi_p32_p32, cospi_p32_m32, &x1[14 ], &x1[tyle='color: green'>15 ], _r, cos_bit);
}
static inline void iadst16_stage9_avx2(__m256i *output, __m256i *x1) {
const __m256i __zero = _mm256_setzero_si256();
output[0 ] = x1[0 ];
output[1 ] = _mm256_subs_epi16(__zero, x1[8 ]);
output[2 ] = x1[12 ];
output[3 ] = _mm256_subs_epi16(__zero, x1[4 ]);
output[4 ] = x1[6 ];
output[5 ] = _mm256_subs_epi16(__zero, x1[14 ]);
output[6 ] = x1[10 ];
output[7 ] = _mm256_subs_epi16(__zero, x1[2 ]);
output[8 ] = x1[3 ];
output[9 ] = _mm256_subs_epi16(__zero, x1[11 ]);
output[10 ] = x1[15 ];
output[11 ] = _mm256_subs_epi16(__zero, x1[7 ]);
output[12 ] = x1[5 ];
output[13 ] = _mm256_subs_epi16(__zero, x1[13 ]);
output[14 ] = x1[9 ];
output[15 ] = _mm256_subs_epi16(__zero, x1[1 ]);
}
static void iadst16_avx2(const __m256i *input, __m256i *output) {
const int32_t *cospi = cospi_arr(INV_COS_BIT);
const __m256i _r = _mm256_set1_epi32(1 << (INV_COS_BIT - 1 ));
__m256i cospi_p02_p62 = pair_set_w16_epi16(cospi[2 ], cospi[62 ]);
__m256i cospi_p62_m02 = pair_set_w16_epi16(cospi[62 ], -cospi[2 ]);
__m256i cospi_p10_p54 = pair_set_w16_epi16(cospi[10 ], cospi[54 ]);
__m256i cospi_p54_m10 = pair_set_w16_epi16(cospi[54 ], -cospi[10 ]);
__m256i cospi_p18_p46 = pair_set_w16_epi16(cospi[18 ], cospi[46 ]);
__m256i cospi_p46_m18 = pair_set_w16_epi16(cospi[46 ], -cospi[18 ]);
__m256i cospi_p26_p38 = pair_set_w16_epi16(cospi[26 ], cospi[38 ]);
__m256i cospi_p38_m26 = pair_set_w16_epi16(cospi[38 ], -cospi[26 ]);
__m256i cospi_p34_p30 = pair_set_w16_epi16(cospi[34 ], cospi[30 ]);
__m256i cospi_p30_m34 = pair_set_w16_epi16(cospi[30 ], -cospi[34 ]);
__m256i cospi_p42_p22 = pair_set_w16_epi16(cospi[42 ], cospi[22 ]);
__m256i cospi_p22_m42 = pair_set_w16_epi16(cospi[22 ], -cospi[42 ]);
__m256i cospi_p50_p14 = pair_set_w16_epi16(cospi[50 ], cospi[14 ]);
__m256i cospi_p14_m50 = pair_set_w16_epi16(cospi[14 ], -cospi[50 ]);
__m256i cospi_p58_p06 = pair_set_w16_epi16(cospi[58 ], cospi[6 ]);
__m256i cospi_p06_m58 = pair_set_w16_epi16(cospi[6 ], -cospi[58 ]);
// stage 1
__m256i x1[16 ];
x1[0 ] = input[15 ];
x1[1 ] = input[0 ];
x1[2 ] = input[13 ];
x1[3 ] = input[2 ];
x1[4 ] = input[11 ];
x1[5 ] = input[4 ];
x1[6 ] = input[9 ];
x1[7 ] = input[6 ];
x1[8 ] = input[7 ];
x1[9 ] = input[8 ];
x1[10 ] = input[5 ];
x1[11 ] = input[10 ];
x1[12 ] = input[3 ];
x1[13 ] = input[12 ];
x1[14 ] = input[1 ];
x1[15 ] = input[14 ];
// stage 2
btf_16_w16_avx2(cospi_p02_p62, cospi_p62_m02, &x1[0 ], &x1[yle='color: green'>1 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_p10_p54, cospi_p54_m10, &x1[2 ], &x1[yle='color: green'>3 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_p18_p46, cospi_p46_m18, &x1[4 ], &x1[yle='color: green'>5 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_p26_p38, cospi_p38_m26, &x1[6 ], &x1[yle='color: green'>7 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_p34_p30, cospi_p30_m34, &x1[8 ], &x1[yle='color: green'>9 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_p42_p22, cospi_p22_m42, &x1[10 ], &x1[tyle='color: green'>11 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_p50_p14, cospi_p14_m50, &x1[12 ], &x1[tyle='color: green'>13 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_p58_p06, cospi_p06_m58, &x1[14 ], &x1[tyle='color: green'>15 ], _r,
INV_COS_BIT);
iadst16_stage3_avx2(x1);
iadst16_stage4_avx2(x1, cospi, _r, INV_COS_BIT);
iadst16_stage5_avx2(x1);
iadst16_stage6_avx2(x1, cospi, _r, INV_COS_BIT);
iadst16_stage7_avx2(x1);
iadst16_stage8_avx2(x1, cospi, _r, INV_COS_BIT);
iadst16_stage9_avx2(output, x1);
}
static void iadst16_low8_avx2(const __m256i *input, __m256i *output) {
const int32_t *cospi = cospi_arr(INV_COS_BIT);
const __m256i _r = _mm256_set1_epi32(1 << (INV_COS_BIT - 1 ));
// stage 1
__m256i x1[16 ];
x1[1 ] = input[0 ];
x1[3 ] = input[2 ];
x1[5 ] = input[4 ];
x1[7 ] = input[6 ];
x1[8 ] = input[7 ];
x1[10 ] = input[5 ];
x1[12 ] = input[3 ];
x1[14 ] = input[1 ];
// stage 2
btf_16_w16_0_avx2(cospi[62 ], -cospi[2 ], x1[1 ], x1[0 ], x1[1 ]);
btf_16_w16_0_avx2(cospi[54 ], -cospi[10 ], x1[3 ], x1[2 ], x1[3 ]);
btf_16_w16_0_avx2(cospi[46 ], -cospi[18 ], x1[5 ], x1[4 ], x1[5 ]);
btf_16_w16_0_avx2(cospi[38 ], -cospi[26 ], x1[7 ], x1[6 ], x1[7 ]);
btf_16_w16_0_avx2(cospi[34 ], cospi[30 ], x1[8 ], x1[8 ], x1[9 ]);
btf_16_w16_0_avx2(cospi[42 ], cospi[22 ], x1[10 ], x1[10 ], x1[11 ]);
btf_16_w16_0_avx2(cospi[50 ], cospi[14 ], x1[12 ], x1[12 ], x1[13 ]);
btf_16_w16_0_avx2(cospi[58 ], cospi[06 ], x1[14 ], x1[14 ], x1[15 ]);
iadst16_stage3_avx2(x1);
iadst16_stage4_avx2(x1, cospi, _r, INV_COS_BIT);
iadst16_stage5_avx2(x1);
iadst16_stage6_avx2(x1, cospi, _r, INV_COS_BIT);
iadst16_stage7_avx2(x1);
iadst16_stage8_avx2(x1, cospi, _r, INV_COS_BIT);
iadst16_stage9_avx2(output, x1);
}
static void iadst16_low1_avx2(const __m256i *input, __m256i *output) {
const int32_t *cospi = cospi_arr(INV_COS_BIT);
const __m256i _r = _mm256_set1_epi32(1 << (INV_COS_BIT - 1 ));
const __m256i cospi_p08_p56 = pair_set_w16_epi16(cospi[8 ], cospi[56 ]);
const __m256i cospi_p56_m08 = pair_set_w16_epi16(cospi[56 ], -cospi[8 ]);
const __m256i cospi_p16_p48 = pair_set_w16_epi16(cospi[16 ], cospi[48 ]);
const __m256i cospi_p48_m16 = pair_set_w16_epi16(cospi[48 ], -cospi[16 ]);
// stage 1
__m256i x1[16 ];
x1[1 ] = input[0 ];
// stage 2
btf_16_w16_0_avx2(cospi[62 ], -cospi[2 ], x1[1 ], x1[0 ], x1[1 ]);
// stage 3
x1[8 ] = x1[0 ];
x1[9 ] = x1[1 ];
// stage 4
btf_16_w16_avx2(cospi_p08_p56, cospi_p56_m08, &x1[8 ], &x1[yle='color: green'>9 ], _r,
INV_COS_BIT);
// stage 5
x1[4 ] = x1[0 ];
x1[5 ] = x1[1 ];
x1[12 ] = x1[8 ];
x1[13 ] = x1[9 ];
// stage 6
btf_16_w16_avx2(cospi_p16_p48, cospi_p48_m16, &x1[4 ], &x1[yle='color: green'>5 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_p16_p48, cospi_p48_m16, &x1[12 ], &x1[tyle='color: green'>13 ], _r,
INV_COS_BIT);
// stage 7
x1[2 ] = x1[0 ];
x1[3 ] = x1[1 ];
x1[6 ] = x1[4 ];
x1[7 ] = x1[5 ];
x1[10 ] = x1[8 ];
x1[11 ] = x1[9 ];
x1[14 ] = x1[12 ];
x1[15 ] = x1[13 ];
iadst16_stage8_avx2(x1, cospi, _r, INV_COS_BIT);
iadst16_stage9_avx2(output, x1);
}
static inline void idct32_high16_stage3_avx2(__m256i *x) {
btf_16_adds_subs_avx2(&x[16 ], &x[17 ]);
btf_16_adds_subs_avx2(&x[19 ], &x[18 ]);
btf_16_adds_subs_avx2(&x[20 ], &x[21 ]);
btf_16_adds_subs_avx2(&x[23 ], &x[22 ]);
btf_16_adds_subs_avx2(&x[24 ], &x[25 ]);
btf_16_adds_subs_avx2(&x[27 ], &x[26 ]);
btf_16_adds_subs_avx2(&x[28 ], &x[29 ]);
btf_16_adds_subs_avx2(&x[31 ], &x[30 ]);
}
static inline void idct32_high16_stage4_avx2(__m256i *x, const int32_t *cospi,
const __m256i _r, int8_t cos_bit) {
const __m256i cospi_m08_p56 = pair_set_w16_epi16(-cospi[8 ], cospi[56 ]);
const __m256i cospi_p56_p08 = pair_set_w16_epi16(cospi[56 ], cospi[8 ]);
const __m256i cospi_m56_m08 = pair_set_w16_epi16(-cospi[56 ], -cospi[8 ]);
const __m256i cospi_m40_p24 = pair_set_w16_epi16(-cospi[40 ], cospi[24 ]);
const __m256i cospi_p24_p40 = pair_set_w16_epi16(cospi[24 ], cospi[40 ]);
const __m256i cospi_m24_m40 = pair_set_w16_epi16(-cospi[24 ], -cospi[40 ]);
btf_16_w16_avx2(cospi_m08_p56, cospi_p56_p08, &x[17 ], &x[tyle='color: green'>30 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m56_m08, cospi_m08_p56, &x[18 ], &x[tyle='color: green'>29 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m40_p24, cospi_p24_p40, &x[21 ], &x[tyle='color: green'>26 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m24_m40, cospi_m40_p24, &x[22 ], &x[tyle='color: green'>25 ], _r, cos_bit);
}
static inline void idct32_high24_stage5_avx2(__m256i *x, const int32_t *cospi,
const __m256i _r, int8_t cos_bit) {
const __m256i cospi_m16_p48 = pair_set_w16_epi16(-cospi[16 ], cospi[48 ]);
const __m256i cospi_p48_p16 = pair_set_w16_epi16(cospi[48 ], cospi[16 ]);
const __m256i cospi_m48_m16 = pair_set_w16_epi16(-cospi[48 ], -cospi[16 ]);
btf_16_w16_avx2(cospi_m16_p48, cospi_p48_p16, &x[9 ], &x[yle='color: green'>14 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m48_m16, cospi_m16_p48, &x[10 ], &x[tyle='color: green'>13 ], _r, cos_bit);
btf_16_adds_subs_avx2(&x[16 ], &x[19 ]);
btf_16_adds_subs_avx2(&x[17 ], &x[18 ]);
btf_16_adds_subs_avx2(&x[23 ], &x[20 ]);
btf_16_adds_subs_avx2(&x[22 ], &x[21 ]);
btf_16_adds_subs_avx2(&x[24 ], &x[27 ]);
btf_16_adds_subs_avx2(&x[25 ], &x[26 ]);
btf_16_adds_subs_avx2(&x[31 ], &x[28 ]);
btf_16_adds_subs_avx2(&x[30 ], &x[29 ]);
}
static inline void idct32_high28_stage6_avx2(__m256i *x, const int32_t *cospi,
const __m256i _r, int8_t cos_bit) {
const __m256i cospi_m32_p32 = pair_set_w16_epi16(-cospi[32 ], cospi[32 ]);
const __m256i cospi_p32_p32 = pair_set_w16_epi16(cospi[32 ], cospi[32 ]);
const __m256i cospi_m16_p48 = pair_set_w16_epi16(-cospi[16 ], cospi[48 ]);
const __m256i cospi_p48_p16 = pair_set_w16_epi16(cospi[48 ], cospi[16 ]);
const __m256i cospi_m48_m16 = pair_set_w16_epi16(-cospi[48 ], -cospi[16 ]);
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x[5 ], &x[yle='color: green'>6 ], _r, cos_bit);
btf_16_adds_subs_avx2(&x[8 ], &x[11 ]);
btf_16_adds_subs_avx2(&x[9 ], &x[10 ]);
btf_16_adds_subs_avx2(&x[15 ], &x[12 ]);
btf_16_adds_subs_avx2(&x[14 ], &x[13 ]);
btf_16_w16_avx2(cospi_m16_p48, cospi_p48_p16, &x[18 ], &x[tyle='color: green'>29 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m16_p48, cospi_p48_p16, &x[19 ], &x[tyle='color: green'>28 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m48_m16, cospi_m16_p48, &x[20 ], &x[tyle='color: green'>27 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m48_m16, cospi_m16_p48, &x[21 ], &x[tyle='color: green'>26 ], _r, cos_bit);
}
static inline void idct32_stage7_avx2(__m256i *x, const int32_t *cospi,
const __m256i _r, int8_t cos_bit) {
const __m256i cospi_m32_p32 = pair_set_w16_epi16(-cospi[32 ], cospi[32 ]);
const __m256i cospi_p32_p32 = pair_set_w16_epi16(cospi[32 ], cospi[32 ]);
btf_16_adds_subs_avx2(&x[0 ], &x[7 ]);
btf_16_adds_subs_avx2(&x[1 ], &x[6 ]);
btf_16_adds_subs_avx2(&x[2 ], &x[5 ]);
btf_16_adds_subs_avx2(&x[3 ], &x[4 ]);
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x[10 ], &x[tyle='color: green'>13 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x[11 ], &x[tyle='color: green'>12 ], _r, cos_bit);
btf_16_adds_subs_avx2(&x[16 ], &x[23 ]);
btf_16_adds_subs_avx2(&x[17 ], &x[22 ]);
btf_16_adds_subs_avx2(&x[18 ], &x[21 ]);
btf_16_adds_subs_avx2(&x[19 ], &x[20 ]);
btf_16_adds_subs_avx2(&x[31 ], &x[24 ]);
btf_16_adds_subs_avx2(&x[30 ], &x[25 ]);
btf_16_adds_subs_avx2(&x[29 ], &x[26 ]);
btf_16_adds_subs_avx2(&x[28 ], &x[27 ]);
}
static inline void idct32_stage8_avx2(__m256i *x, const int32_t *cospi,
const __m256i _r, int8_t cos_bit) {
const __m256i cospi_m32_p32 = pair_set_w16_epi16(-cospi[32 ], cospi[32 ]);
const __m256i cospi_p32_p32 = pair_set_w16_epi16(cospi[32 ], cospi[32 ]);
btf_16_adds_subs_avx2(&x[0 ], &x[15 ]);
btf_16_adds_subs_avx2(&x[1 ], &x[14 ]);
btf_16_adds_subs_avx2(&x[2 ], &x[13 ]);
btf_16_adds_subs_avx2(&x[3 ], &x[12 ]);
btf_16_adds_subs_avx2(&x[4 ], &x[11 ]);
btf_16_adds_subs_avx2(&x[5 ], &x[10 ]);
btf_16_adds_subs_avx2(&x[6 ], &x[9 ]);
btf_16_adds_subs_avx2(&x[7 ], &x[8 ]);
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x[20 ], &x[tyle='color: green'>27 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x[21 ], &x[tyle='color: green'>26 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x[22 ], &x[tyle='color: green'>25 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x[23 ], &x[tyle='color: green'>24 ], _r, cos_bit);
}
static inline void idct32_stage9_avx2(__m256i *output, __m256i *x) {
btf_16_adds_subs_out_avx2(&output[0 ], &output[>31 ], x[0 ], x[31 ]);
btf_16_adds_subs_out_avx2(&output[1 ], &output[>30 ], x[1 ], x[30 ]);
btf_16_adds_subs_out_avx2(&output[2 ], &output[>29 ], x[2 ], x[29 ]);
btf_16_adds_subs_out_avx2(&output[3 ], &output[>28 ], x[3 ], x[28 ]);
btf_16_adds_subs_out_avx2(&output[4 ], &output[>27 ], x[4 ], x[27 ]);
btf_16_adds_subs_out_avx2(&output[5 ], &output[>26 ], x[5 ], x[26 ]);
btf_16_adds_subs_out_avx2(&output[6 ], &output[>25 ], x[6 ], x[25 ]);
btf_16_adds_subs_out_avx2(&output[7 ], &output[>24 ], x[7 ], x[24 ]);
btf_16_adds_subs_out_avx2(&output[8 ], &output[>23 ], x[8 ], x[23 ]);
btf_16_adds_subs_out_avx2(&output[9 ], &output[>22 ], x[9 ], x[22 ]);
btf_16_adds_subs_out_avx2(&output[10 ], &output[21 ], x[10 ], x[21 ]);
btf_16_adds_subs_out_avx2(&output[11 ], &output[20 ], x[11 ], x[20 ]);
btf_16_adds_subs_out_avx2(&output[12 ], &output[19 ], x[12 ], x[19 ]);
btf_16_adds_subs_out_avx2(&output[13 ], &output[18 ], x[13 ], x[18 ]);
btf_16_adds_subs_out_avx2(&output[14 ], &output[17 ], x[14 ], x[17 ]);
btf_16_adds_subs_out_avx2(&output[15 ], &output[16 ], x[15 ], x[16 ]);
}
static void idct32_low1_avx2(const __m256i *input, __m256i *output) {
const int32_t *cospi = cospi_arr(INV_COS_BIT);
// stage 1
__m256i x[2 ];
x[0 ] = input[0 ];
// stage 2
// stage 3
// stage 4
// stage 5
btf_16_w16_0_avx2(cospi[32 ], cospi[32 ], x[0 ], x[0 ], x[1 ]);
// stage 6
// stage 7
// stage 8
// stage 9
output[0 ] = x[0 ];
output[31 ] = x[0 ];
output[1 ] = x[1 ];
output[30 ] = x[1 ];
output[2 ] = x[1 ];
output[29 ] = x[1 ];
output[3 ] = x[0 ];
output[28 ] = x[0 ];
output[4 ] = x[0 ];
output[27 ] = x[0 ];
output[5 ] = x[1 ];
output[26 ] = x[1 ];
output[6 ] = x[1 ];
output[25 ] = x[1 ];
output[7 ] = x[0 ];
output[24 ] = x[0 ];
output[8 ] = x[0 ];
output[23 ] = x[0 ];
output[9 ] = x[1 ];
output[22 ] = x[1 ];
output[10 ] = x[1 ];
output[21 ] = x[1 ];
output[11 ] = x[0 ];
output[20 ] = x[0 ];
output[12 ] = x[0 ];
output[19 ] = x[0 ];
output[13 ] = x[1 ];
output[18 ] = x[1 ];
output[14 ] = x[1 ];
output[17 ] = x[1 ];
output[15 ] = x[0 ];
output[16 ] = x[0 ];
}
static void idct32_low8_avx2(const __m256i *input, __m256i *output) {
const int32_t *cospi = cospi_arr(INV_COS_BIT);
const __m256i _r = _mm256_set1_epi32(1 << (INV_COS_BIT - 1 ));
// stage 1
__m256i x[32 ];
x[0 ] = input[0 ];
x[4 ] = input[4 ];
x[8 ] = input[2 ];
x[12 ] = input[6 ];
x[16 ] = input[1 ];
x[20 ] = input[5 ];
x[24 ] = input[3 ];
x[28 ] = input[7 ];
// stage 2
btf_16_w16_0_avx2(cospi[62 ], cospi[2 ], x[16 ], x[16 ], x[31 ]);
btf_16_w16_0_avx2(-cospi[50 ], cospi[14 ], x[28 ], x[19 ], x[28 ]);
btf_16_w16_0_avx2(cospi[54 ], cospi[10 ], x[20 ], x[20 ], x[27 ]);
btf_16_w16_0_avx2(-cospi[58 ], cospi[6 ], x[24 ], x[23 ], x[24 ]);
// stage 3
btf_16_w16_0_avx2(cospi[60 ], cospi[4 ], x[8 ], x[8 ], x[15 ]);
btf_16_w16_0_avx2(-cospi[52 ], cospi[12 ], x[12 ], x[11 ], x[12 ]);
x[17 ] = x[16 ];
x[18 ] = x[19 ];
x[21 ] = x[20 ];
x[22 ] = x[23 ];
x[25 ] = x[24 ];
x[26 ] = x[27 ];
x[29 ] = x[28 ];
x[30 ] = x[31 ];
// stage 4
btf_16_w16_0_avx2(cospi[56 ], cospi[8 ], x[4 ], x[4 ], x[7 ]);
x[9 ] = x[8 ];
x[10 ] = x[11 ];
x[13 ] = x[12 ];
x[14 ] = x[15 ];
idct32_high16_stage4_avx2(x, cospi, _r, INV_COS_BIT);
// stage 5
btf_16_w16_0_avx2(cospi[32 ], cospi[32 ], x[0 ], x[0 ], x[1 ]);
x[5 ] = x[4 ];
x[6 ] = x[7 ];
idct32_high24_stage5_avx2(x, cospi, _r, INV_COS_BIT);
// stage 6
x[3 ] = x[0 ];
x[2 ] = x[1 ];
idct32_high28_stage6_avx2(x, cospi, _r, INV_COS_BIT);
idct32_stage7_avx2(x, cospi, _r, INV_COS_BIT);
idct32_stage8_avx2(x, cospi, _r, INV_COS_BIT);
idct32_stage9_avx2(output, x);
}
static void idct32_low16_avx2(const __m256i *input, __m256i *output) {
const int32_t *cospi = cospi_arr(INV_COS_BIT);
const __m256i _r = _mm256_set1_epi32(1 << (INV_COS_BIT - 1 ));
// stage 1
__m256i x[32 ];
x[0 ] = input[0 ];
x[2 ] = input[8 ];
x[4 ] = input[4 ];
x[6 ] = input[12 ];
x[8 ] = input[2 ];
x[10 ] = input[10 ];
x[12 ] = input[6 ];
x[14 ] = input[14 ];
x[16 ] = input[1 ];
x[18 ] = input[9 ];
x[20 ] = input[5 ];
x[22 ] = input[13 ];
x[24 ] = input[3 ];
x[26 ] = input[11 ];
x[28 ] = input[7 ];
x[30 ] = input[15 ];
// stage 2
btf_16_w16_0_avx2(cospi[62 ], cospi[2 ], x[16 ], x[16 ], x[31 ]);
btf_16_w16_0_avx2(-cospi[34 ], cospi[30 ], x[30 ], x[17 ], x[30 ]);
btf_16_w16_0_avx2(cospi[46 ], cospi[18 ], x[18 ], x[18 ], x[29 ]);
btf_16_w16_0_avx2(-cospi[50 ], cospi[14 ], x[28 ], x[19 ], x[28 ]);
btf_16_w16_0_avx2(cospi[54 ], cospi[10 ], x[20 ], x[20 ], x[27 ]);
btf_16_w16_0_avx2(-cospi[42 ], cospi[22 ], x[26 ], x[21 ], x[26 ]);
btf_16_w16_0_avx2(cospi[38 ], cospi[26 ], x[22 ], x[22 ], x[25 ]);
btf_16_w16_0_avx2(-cospi[58 ], cospi[6 ], x[24 ], x[23 ], x[24 ]);
// stage 3
btf_16_w16_0_avx2(cospi[60 ], cospi[4 ], x[8 ], x[8 ], x[15 ]);
btf_16_w16_0_avx2(-cospi[36 ], cospi[28 ], x[14 ], x[9 ], x[14 ]);
btf_16_w16_0_avx2(cospi[44 ], cospi[20 ], x[10 ], x[10 ], x[13 ]);
btf_16_w16_0_avx2(-cospi[52 ], cospi[12 ], x[12 ], x[11 ], x[12 ]);
idct32_high16_stage3_avx2(x);
// stage 4
btf_16_w16_0_avx2(cospi[56 ], cospi[8 ], x[4 ], x[4 ], x[7 ]);
btf_16_w16_0_avx2(-cospi[40 ], cospi[24 ], x[6 ], x[5 ], x[6 ]);
btf_16_adds_subs_avx2(&x[8 ], &x[9 ]);
btf_16_adds_subs_avx2(&x[11 ], &x[10 ]);
btf_16_adds_subs_avx2(&x[12 ], &x[13 ]);
btf_16_adds_subs_avx2(&x[15 ], &x[14 ]);
idct32_high16_stage4_avx2(x, cospi, _r, INV_COS_BIT);
// stage 5
btf_16_w16_0_avx2(cospi[32 ], cospi[32 ], x[0 ], x[0 ], x[1 ]);
btf_16_w16_0_avx2(cospi[48 ], cospi[16 ], x[2 ], x[2 ], x[3 ]);
btf_16_adds_subs_avx2(&x[4 ], &x[5 ]);
btf_16_adds_subs_avx2(&x[7 ], &x[6 ]);
idct32_high24_stage5_avx2(x, cospi, _r, INV_COS_BIT);
btf_16_adds_subs_avx2(&x[0 ], &x[3 ]);
btf_16_adds_subs_avx2(&x[1 ], &x[2 ]);
idct32_high28_stage6_avx2(x, cospi, _r, INV_COS_BIT);
idct32_stage7_avx2(x, cospi, _r, INV_COS_BIT);
idct32_stage8_avx2(x, cospi, _r, INV_COS_BIT);
idct32_stage9_avx2(output, x);
}
static void idct32_avx2(const __m256i *input, __m256i *output) {
const int32_t *cospi = cospi_arr(INV_COS_BIT);
const __m256i _r = _mm256_set1_epi32(1 << (INV_COS_BIT - 1 ));
__m256i cospi_p62_m02 = pair_set_w16_epi16(cospi[62 ], -cospi[2 ]);
__m256i cospi_p02_p62 = pair_set_w16_epi16(cospi[2 ], cospi[62 ]);
__m256i cospi_p30_m34 = pair_set_w16_epi16(cospi[30 ], -cospi[34 ]);
__m256i cospi_p34_p30 = pair_set_w16_epi16(cospi[34 ], cospi[30 ]);
__m256i cospi_p46_m18 = pair_set_w16_epi16(cospi[46 ], -cospi[18 ]);
__m256i cospi_p18_p46 = pair_set_w16_epi16(cospi[18 ], cospi[46 ]);
__m256i cospi_p14_m50 = pair_set_w16_epi16(cospi[14 ], -cospi[50 ]);
__m256i cospi_p50_p14 = pair_set_w16_epi16(cospi[50 ], cospi[14 ]);
__m256i cospi_p54_m10 = pair_set_w16_epi16(cospi[54 ], -cospi[10 ]);
__m256i cospi_p10_p54 = pair_set_w16_epi16(cospi[10 ], cospi[54 ]);
__m256i cospi_p22_m42 = pair_set_w16_epi16(cospi[22 ], -cospi[42 ]);
__m256i cospi_p42_p22 = pair_set_w16_epi16(cospi[42 ], cospi[22 ]);
__m256i cospi_p38_m26 = pair_set_w16_epi16(cospi[38 ], -cospi[26 ]);
__m256i cospi_p26_p38 = pair_set_w16_epi16(cospi[26 ], cospi[38 ]);
__m256i cospi_p06_m58 = pair_set_w16_epi16(cospi[6 ], -cospi[58 ]);
__m256i cospi_p58_p06 = pair_set_w16_epi16(cospi[58 ], cospi[6 ]);
__m256i cospi_p60_m04 = pair_set_w16_epi16(cospi[60 ], -cospi[4 ]);
__m256i cospi_p04_p60 = pair_set_w16_epi16(cospi[4 ], cospi[60 ]);
__m256i cospi_p28_m36 = pair_set_w16_epi16(cospi[28 ], -cospi[36 ]);
__m256i cospi_p36_p28 = pair_set_w16_epi16(cospi[36 ], cospi[28 ]);
__m256i cospi_p44_m20 = pair_set_w16_epi16(cospi[44 ], -cospi[20 ]);
__m256i cospi_p20_p44 = pair_set_w16_epi16(cospi[20 ], cospi[44 ]);
__m256i cospi_p12_m52 = pair_set_w16_epi16(cospi[12 ], -cospi[52 ]);
__m256i cospi_p52_p12 = pair_set_w16_epi16(cospi[52 ], cospi[12 ]);
__m256i cospi_p56_m08 = pair_set_w16_epi16(cospi[56 ], -cospi[8 ]);
__m256i cospi_p08_p56 = pair_set_w16_epi16(cospi[8 ], cospi[56 ]);
__m256i cospi_p24_m40 = pair_set_w16_epi16(cospi[24 ], -cospi[40 ]);
__m256i cospi_p40_p24 = pair_set_w16_epi16(cospi[40 ], cospi[24 ]);
__m256i cospi_p32_p32 = pair_set_w16_epi16(cospi[32 ], cospi[32 ]);
__m256i cospi_p32_m32 = pair_set_w16_epi16(cospi[32 ], -cospi[32 ]);
__m256i cospi_p48_m16 = pair_set_w16_epi16(cospi[48 ], -cospi[16 ]);
__m256i cospi_p16_p48 = pair_set_w16_epi16(cospi[16 ], cospi[48 ]);
// stage 1
__m256i x1[32 ];
x1[0 ] = input[0 ];
x1[1 ] = input[16 ];
x1[2 ] = input[8 ];
x1[3 ] = input[24 ];
x1[4 ] = input[4 ];
x1[5 ] = input[20 ];
x1[6 ] = input[12 ];
x1[7 ] = input[28 ];
x1[8 ] = input[2 ];
x1[9 ] = input[18 ];
x1[10 ] = input[10 ];
x1[11 ] = input[26 ];
x1[12 ] = input[6 ];
x1[13 ] = input[22 ];
x1[14 ] = input[14 ];
x1[15 ] = input[30 ];
x1[16 ] = input[1 ];
x1[17 ] = input[17 ];
x1[18 ] = input[9 ];
x1[19 ] = input[25 ];
x1[20 ] = input[5 ];
x1[21 ] = input[21 ];
x1[22 ] = input[13 ];
x1[23 ] = input[29 ];
x1[24 ] = input[3 ];
x1[25 ] = input[19 ];
x1[26 ] = input[11 ];
x1[27 ] = input[27 ];
x1[28 ] = input[7 ];
x1[29 ] = input[23 ];
x1[30 ] = input[15 ];
x1[31 ] = input[31 ];
// stage 2
btf_16_w16_avx2(cospi_p62_m02, cospi_p02_p62, &x1[16 ], &x1[tyle='color: green'>31 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_p30_m34, cospi_p34_p30, &x1[17 ], &x1[tyle='color: green'>30 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_p46_m18, cospi_p18_p46, &x1[18 ], &x1[tyle='color: green'>29 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_p14_m50, cospi_p50_p14, &x1[19 ], &x1[tyle='color: green'>28 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_p54_m10, cospi_p10_p54, &x1[20 ], &x1[tyle='color: green'>27 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_p22_m42, cospi_p42_p22, &x1[21 ], &x1[tyle='color: green'>26 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_p38_m26, cospi_p26_p38, &x1[22 ], &x1[tyle='color: green'>25 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_p06_m58, cospi_p58_p06, &x1[23 ], &x1[tyle='color: green'>24 ], _r,
INV_COS_BIT);
// stage 3
btf_16_w16_avx2(cospi_p60_m04, cospi_p04_p60, &x1[8 ], &x1[yle='color: green'>15 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_p28_m36, cospi_p36_p28, &x1[9 ], &x1[yle='color: green'>14 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_p44_m20, cospi_p20_p44, &x1[10 ], &x1[tyle='color: green'>13 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_p12_m52, cospi_p52_p12, &x1[11 ], &x1[tyle='color: green'>12 ], _r,
INV_COS_BIT);
idct32_high16_stage3_avx2(x1);
// stage 4
btf_16_w16_avx2(cospi_p56_m08, cospi_p08_p56, &x1[4 ], &x1[yle='color: green'>7 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_p24_m40, cospi_p40_p24, &x1[5 ], &x1[yle='color: green'>6 ], _r,
INV_COS_BIT);
btf_16_adds_subs_avx2(&x1[8 ], &x1[9 ]);
btf_16_adds_subs_avx2(&x1[11 ], &x1[10 ]);
btf_16_adds_subs_avx2(&x1[12 ], &x1[13 ]);
btf_16_adds_subs_avx2(&x1[15 ], &x1[14 ]);
idct32_high16_stage4_avx2(x1, cospi, _r, INV_COS_BIT);
// stage 5
btf_16_w16_avx2(cospi_p32_p32, cospi_p32_m32, &x1[0 ], &x1[yle='color: green'>1 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_p48_m16, cospi_p16_p48, &x1[2 ], &x1[yle='color: green'>3 ], _r,
INV_COS_BIT);
btf_16_adds_subs_avx2(&x1[4 ], &x1[5 ]);
btf_16_adds_subs_avx2(&x1[7 ], &x1[6 ]);
idct32_high24_stage5_avx2(x1, cospi, _r, INV_COS_BIT);
// stage 6
btf_16_adds_subs_avx2(&x1[0 ], &x1[3 ]);
btf_16_adds_subs_avx2(&x1[1 ], &x1[2 ]);
idct32_high28_stage6_avx2(x1, cospi, _r, INV_COS_BIT);
idct32_stage7_avx2(x1, cospi, _r, INV_COS_BIT);
idct32_stage8_avx2(x1, cospi, _r, INV_COS_BIT);
idct32_stage9_avx2(output, x1);
}
static inline void idct64_stage4_high32_avx2(__m256i *x, const int32_t *cospi,
const __m256i _r, int8_t cos_bit) {
(void )cos_bit;
const __m256i cospi_m04_p60 = pair_set_w16_epi16(-cospi[4 ], cospi[60 ]);
const __m256i cospi_p60_p04 = pair_set_w16_epi16(cospi[60 ], cospi[4 ]);
const __m256i cospi_m60_m04 = pair_set_w16_epi16(-cospi[60 ], -cospi[4 ]);
const __m256i cospi_m36_p28 = pair_set_w16_epi16(-cospi[36 ], cospi[28 ]);
const __m256i cospi_p28_p36 = pair_set_w16_epi16(cospi[28 ], cospi[36 ]);
const __m256i cospi_m28_m36 = pair_set_w16_epi16(-cospi[28 ], -cospi[36 ]);
const __m256i cospi_m20_p44 = pair_set_w16_epi16(-cospi[20 ], cospi[44 ]);
const __m256i cospi_p44_p20 = pair_set_w16_epi16(cospi[44 ], cospi[20 ]);
const __m256i cospi_m44_m20 = pair_set_w16_epi16(-cospi[44 ], -cospi[20 ]);
const __m256i cospi_m52_p12 = pair_set_w16_epi16(-cospi[52 ], cospi[12 ]);
const __m256i cospi_p12_p52 = pair_set_w16_epi16(cospi[12 ], cospi[52 ]);
const __m256i cospi_m12_m52 = pair_set_w16_epi16(-cospi[12 ], -cospi[52 ]);
btf_16_w16_avx2(cospi_m04_p60, cospi_p60_p04, &x[33 ], &x[tyle='color: green'>62 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m60_m04, cospi_m04_p60, &x[34 ], &x[tyle='color: green'>61 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m36_p28, cospi_p28_p36, &x[37 ], &x[tyle='color: green'>58 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m28_m36, cospi_m36_p28, &x[38 ], &x[tyle='color: green'>57 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m20_p44, cospi_p44_p20, &x[41 ], &x[tyle='color: green'>54 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m44_m20, cospi_m20_p44, &x[42 ], &x[tyle='color: green'>53 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m52_p12, cospi_p12_p52, &x[45 ], &x[tyle='color: green'>50 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m12_m52, cospi_m52_p12, &x[46 ], &x[tyle='color: green'>49 ], _r, cos_bit);
}
static inline void idct64_stage5_high48_avx2(__m256i *x, const int32_t *cospi,
const __m256i _r, int8_t cos_bit) {
(void )cos_bit;
const __m256i cospi_m08_p56 = pair_set_w16_epi16(-cospi[8 ], cospi[56 ]);
const __m256i cospi_p56_p08 = pair_set_w16_epi16(cospi[56 ], cospi[8 ]);
const __m256i cospi_m56_m08 = pair_set_w16_epi16(-cospi[56 ], -cospi[8 ]);
const __m256i cospi_m40_p24 = pair_set_w16_epi16(-cospi[40 ], cospi[24 ]);
const __m256i cospi_p24_p40 = pair_set_w16_epi16(cospi[24 ], cospi[40 ]);
const __m256i cospi_m24_m40 = pair_set_w16_epi16(-cospi[24 ], -cospi[40 ]);
btf_16_w16_avx2(cospi_m08_p56, cospi_p56_p08, &x[17 ], &x[tyle='color: green'>30 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m56_m08, cospi_m08_p56, &x[18 ], &x[tyle='color: green'>29 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m40_p24, cospi_p24_p40, &x[21 ], &x[tyle='color: green'>26 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m24_m40, cospi_m40_p24, &x[22 ], &x[tyle='color: green'>25 ], _r, cos_bit);
btf_16_adds_subs_avx2(&x[32 ], &x[35 ]);
btf_16_adds_subs_avx2(&x[33 ], &x[34 ]);
btf_16_adds_subs_avx2(&x[39 ], &x[36 ]);
btf_16_adds_subs_avx2(&x[38 ], &x[37 ]);
btf_16_adds_subs_avx2(&x[40 ], &x[43 ]);
btf_16_adds_subs_avx2(&x[41 ], &x[42 ]);
btf_16_adds_subs_avx2(&x[47 ], &x[44 ]);
btf_16_adds_subs_avx2(&x[46 ], &x[45 ]);
btf_16_adds_subs_avx2(&x[48 ], &x[51 ]);
btf_16_adds_subs_avx2(&x[49 ], &x[50 ]);
btf_16_adds_subs_avx2(&x[55 ], &x[52 ]);
btf_16_adds_subs_avx2(&x[54 ], &x[53 ]);
btf_16_adds_subs_avx2(&x[56 ], &x[59 ]);
btf_16_adds_subs_avx2(&x[57 ], &x[58 ]);
btf_16_adds_subs_avx2(&x[63 ], &x[60 ]);
btf_16_adds_subs_avx2(&x[62 ], &x[61 ]);
}
static inline void idct64_stage6_high32_avx2(__m256i *x, const int32_t *cospi,
const __m256i _r, int8_t cos_bit) {
(void )cos_bit;
const __m256i cospi_m08_p56 = pair_set_w16_epi16(-cospi[8 ], cospi[56 ]);
const __m256i cospi_p56_p08 = pair_set_w16_epi16(cospi[56 ], cospi[8 ]);
const __m256i cospi_m56_m08 = pair_set_w16_epi16(-cospi[56 ], -cospi[8 ]);
const __m256i cospi_m40_p24 = pair_set_w16_epi16(-cospi[40 ], cospi[24 ]);
const __m256i cospi_p24_p40 = pair_set_w16_epi16(cospi[24 ], cospi[40 ]);
const __m256i cospi_m24_m40 = pair_set_w16_epi16(-cospi[24 ], -cospi[40 ]);
btf_16_w16_avx2(cospi_m08_p56, cospi_p56_p08, &x[34 ], &x[tyle='color: green'>61 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m08_p56, cospi_p56_p08, &x[35 ], &x[tyle='color: green'>60 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m56_m08, cospi_m08_p56, &x[36 ], &x[tyle='color: green'>59 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m56_m08, cospi_m08_p56, &x[37 ], &x[tyle='color: green'>58 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m40_p24, cospi_p24_p40, &x[42 ], &x[tyle='color: green'>53 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m40_p24, cospi_p24_p40, &x[43 ], &x[tyle='color: green'>52 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m24_m40, cospi_m40_p24, &x[44 ], &x[tyle='color: green'>51 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m24_m40, cospi_m40_p24, &x[45 ], &x[tyle='color: green'>50 ], _r, cos_bit);
}
static inline void idct64_stage6_high48_avx2(__m256i *x, const int32_t *cospi,
const __m256i _r, int8_t cos_bit) {
btf_16_adds_subs_avx2(&x[16 ], &x[19 ]);
btf_16_adds_subs_avx2(&x[17 ], &x[18 ]);
btf_16_adds_subs_avx2(&x[23 ], &x[20 ]);
btf_16_adds_subs_avx2(&x[22 ], &x[21 ]);
btf_16_adds_subs_avx2(&x[24 ], &x[27 ]);
btf_16_adds_subs_avx2(&x[25 ], &x[26 ]);
btf_16_adds_subs_avx2(&x[31 ], &x[28 ]);
btf_16_adds_subs_avx2(&x[30 ], &x[29 ]);
idct64_stage6_high32_avx2(x, cospi, _r, cos_bit);
}
static inline void idct64_stage7_high48_avx2(__m256i *x, const int32_t *cospi,
const __m256i _r, int8_t cos_bit) {
(void )cos_bit;
const __m256i cospi_m16_p48 = pair_set_w16_epi16(-cospi[16 ], cospi[48 ]);
const __m256i cospi_p48_p16 = pair_set_w16_epi16(cospi[48 ], cospi[16 ]);
const __m256i cospi_m48_m16 = pair_set_w16_epi16(-cospi[48 ], -cospi[16 ]);
btf_16_w16_avx2(cospi_m16_p48, cospi_p48_p16, &x[18 ], &x[tyle='color: green'>29 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m16_p48, cospi_p48_p16, &x[19 ], &x[tyle='color: green'>28 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m48_m16, cospi_m16_p48, &x[20 ], &x[tyle='color: green'>27 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m48_m16, cospi_m16_p48, &x[21 ], &x[tyle='color: green'>26 ], _r, cos_bit);
btf_16_adds_subs_avx2(&x[32 ], &x[39 ]);
btf_16_adds_subs_avx2(&x[33 ], &x[38 ]);
btf_16_adds_subs_avx2(&x[34 ], &x[37 ]);
btf_16_adds_subs_avx2(&x[35 ], &x[36 ]);
btf_16_adds_subs_avx2(&x[47 ], &x[40 ]);
btf_16_adds_subs_avx2(&x[46 ], &x[41 ]);
btf_16_adds_subs_avx2(&x[45 ], &x[42 ]);
btf_16_adds_subs_avx2(&x[44 ], &x[43 ]);
btf_16_adds_subs_avx2(&x[48 ], &x[55 ]);
btf_16_adds_subs_avx2(&x[49 ], &x[54 ]);
btf_16_adds_subs_avx2(&x[50 ], &x[53 ]);
btf_16_adds_subs_avx2(&x[51 ], &x[52 ]);
btf_16_adds_subs_avx2(&x[63 ], &x[56 ]);
btf_16_adds_subs_avx2(&x[62 ], &x[57 ]);
btf_16_adds_subs_avx2(&x[61 ], &x[58 ]);
btf_16_adds_subs_avx2(&x[60 ], &x[59 ]);
}
static inline void idct64_stage8_high48_avx2(__m256i *x, const int32_t *cospi,
const __m256i _r, int8_t cos_bit) {
(void )cos_bit;
const __m256i cospi_m16_p48 = pair_set_w16_epi16(-cospi[16 ], cospi[48 ]);
const __m256i cospi_p48_p16 = pair_set_w16_epi16(cospi[48 ], cospi[16 ]);
const __m256i cospi_m48_m16 = pair_set_w16_epi16(-cospi[48 ], -cospi[16 ]);
btf_16_adds_subs_avx2(&x[16 ], &x[23 ]);
btf_16_adds_subs_avx2(&x[17 ], &x[22 ]);
btf_16_adds_subs_avx2(&x[18 ], &x[21 ]);
btf_16_adds_subs_avx2(&x[19 ], &x[20 ]);
btf_16_adds_subs_avx2(&x[31 ], &x[24 ]);
btf_16_adds_subs_avx2(&x[30 ], &x[25 ]);
btf_16_adds_subs_avx2(&x[29 ], &x[26 ]);
btf_16_adds_subs_avx2(&x[28 ], &x[27 ]);
btf_16_w16_avx2(cospi_m16_p48, cospi_p48_p16, &x[36 ], &x[tyle='color: green'>59 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m16_p48, cospi_p48_p16, &x[37 ], &x[tyle='color: green'>58 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m16_p48, cospi_p48_p16, &x[38 ], &x[tyle='color: green'>57 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m16_p48, cospi_p48_p16, &x[39 ], &x[tyle='color: green'>56 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m48_m16, cospi_m16_p48, &x[40 ], &x[tyle='color: green'>55 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m48_m16, cospi_m16_p48, &x[41 ], &x[tyle='color: green'>54 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m48_m16, cospi_m16_p48, &x[42 ], &x[tyle='color: green'>53 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m48_m16, cospi_m16_p48, &x[43 ], &x[tyle='color: green'>52 ], _r, cos_bit);
}
static inline void idct64_stage9_avx2(__m256i *x, const int32_t *cospi,
const __m256i _r, int8_t cos_bit) {
(void )cos_bit;
const __m256i cospi_m32_p32 = pair_set_w16_epi16(-cospi[32 ], cospi[32 ]);
const __m256i cospi_p32_p32 = pair_set_w16_epi16(cospi[32 ], cospi[32 ]);
btf_16_adds_subs_avx2(&x[0 ], &x[15 ]);
btf_16_adds_subs_avx2(&x[1 ], &x[14 ]);
btf_16_adds_subs_avx2(&x[2 ], &x[13 ]);
btf_16_adds_subs_avx2(&x[3 ], &x[12 ]);
btf_16_adds_subs_avx2(&x[4 ], &x[11 ]);
btf_16_adds_subs_avx2(&x[5 ], &x[10 ]);
btf_16_adds_subs_avx2(&x[6 ], &x[9 ]);
btf_16_adds_subs_avx2(&x[7 ], &x[8 ]);
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x[20 ], &x[tyle='color: green'>27 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x[21 ], &x[tyle='color: green'>26 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x[22 ], &x[tyle='color: green'>25 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x[23 ], &x[tyle='color: green'>24 ], _r, cos_bit);
btf_16_adds_subs_avx2(&x[32 ], &x[47 ]);
btf_16_adds_subs_avx2(&x[33 ], &x[46 ]);
btf_16_adds_subs_avx2(&x[34 ], &x[45 ]);
btf_16_adds_subs_avx2(&x[35 ], &x[44 ]);
btf_16_adds_subs_avx2(&x[36 ], &x[43 ]);
btf_16_adds_subs_avx2(&x[37 ], &x[42 ]);
btf_16_adds_subs_avx2(&x[38 ], &x[41 ]);
btf_16_adds_subs_avx2(&x[39 ], &x[40 ]);
btf_16_adds_subs_avx2(&x[63 ], &x[48 ]);
btf_16_adds_subs_avx2(&x[62 ], &x[49 ]);
btf_16_adds_subs_avx2(&x[61 ], &x[50 ]);
btf_16_adds_subs_avx2(&x[60 ], &x[51 ]);
btf_16_adds_subs_avx2(&x[59 ], &x[52 ]);
btf_16_adds_subs_avx2(&x[58 ], &x[53 ]);
btf_16_adds_subs_avx2(&x[57 ], &x[54 ]);
btf_16_adds_subs_avx2(&x[56 ], &x[55 ]);
}
static inline void idct64_stage10_avx2(__m256i *x, const int32_t *cospi,
const __m256i _r, int8_t cos_bit) {
(void )cos_bit;
const __m256i cospi_m32_p32 = pair_set_w16_epi16(-cospi[32 ], cospi[32 ]);
const __m256i cospi_p32_p32 = pair_set_w16_epi16(cospi[32 ], cospi[32 ]);
btf_16_adds_subs_avx2(&x[0 ], &x[31 ]);
btf_16_adds_subs_avx2(&x[1 ], &x[30 ]);
btf_16_adds_subs_avx2(&x[2 ], &x[29 ]);
btf_16_adds_subs_avx2(&x[3 ], &x[28 ]);
btf_16_adds_subs_avx2(&x[4 ], &x[27 ]);
btf_16_adds_subs_avx2(&x[5 ], &x[26 ]);
btf_16_adds_subs_avx2(&x[6 ], &x[25 ]);
btf_16_adds_subs_avx2(&x[7 ], &x[24 ]);
btf_16_adds_subs_avx2(&x[8 ], &x[23 ]);
btf_16_adds_subs_avx2(&x[9 ], &x[22 ]);
btf_16_adds_subs_avx2(&x[10 ], &x[21 ]);
btf_16_adds_subs_avx2(&x[11 ], &x[20 ]);
btf_16_adds_subs_avx2(&x[12 ], &x[19 ]);
btf_16_adds_subs_avx2(&x[13 ], &x[18 ]);
btf_16_adds_subs_avx2(&x[14 ], &x[17 ]);
btf_16_adds_subs_avx2(&x[15 ], &x[16 ]);
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x[40 ], &x[tyle='color: green'>55 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x[41 ], &x[tyle='color: green'>54 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x[42 ], &x[tyle='color: green'>53 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x[43 ], &x[tyle='color: green'>52 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x[44 ], &x[tyle='color: green'>51 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x[45 ], &x[tyle='color: green'>50 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x[46 ], &x[tyle='color: green'>49 ], _r, cos_bit);
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x[47 ], &x[tyle='color: green'>48 ], _r, cos_bit);
}
static inline void idct64_stage11_avx2(__m256i *output, __m256i *x) {
btf_16_adds_subs_out_avx2(&output[0 ], &output[>63 ], x[0 ], x[63 ]);
btf_16_adds_subs_out_avx2(&output[1 ], &output[>62 ], x[1 ], x[62 ]);
btf_16_adds_subs_out_avx2(&output[2 ], &output[>61 ], x[2 ], x[61 ]);
btf_16_adds_subs_out_avx2(&output[3 ], &output[>60 ], x[3 ], x[60 ]);
btf_16_adds_subs_out_avx2(&output[4 ], &output[>59 ], x[4 ], x[59 ]);
btf_16_adds_subs_out_avx2(&output[5 ], &output[>58 ], x[5 ], x[58 ]);
btf_16_adds_subs_out_avx2(&output[6 ], &output[>57 ], x[6 ], x[57 ]);
btf_16_adds_subs_out_avx2(&output[7 ], &output[>56 ], x[7 ], x[56 ]);
btf_16_adds_subs_out_avx2(&output[8 ], &output[>55 ], x[8 ], x[55 ]);
btf_16_adds_subs_out_avx2(&output[9 ], &output[>54 ], x[9 ], x[54 ]);
btf_16_adds_subs_out_avx2(&output[10 ], &output[53 ], x[10 ], x[53 ]);
btf_16_adds_subs_out_avx2(&output[11 ], &output[52 ], x[11 ], x[52 ]);
btf_16_adds_subs_out_avx2(&output[12 ], &output[51 ], x[12 ], x[51 ]);
btf_16_adds_subs_out_avx2(&output[13 ], &output[50 ], x[13 ], x[50 ]);
btf_16_adds_subs_out_avx2(&output[14 ], &output[49 ], x[14 ], x[49 ]);
btf_16_adds_subs_out_avx2(&output[15 ], &output[48 ], x[15 ], x[48 ]);
btf_16_adds_subs_out_avx2(&output[16 ], &output[47 ], x[16 ], x[47 ]);
btf_16_adds_subs_out_avx2(&output[17 ], &output[46 ], x[17 ], x[46 ]);
btf_16_adds_subs_out_avx2(&output[18 ], &output[45 ], x[18 ], x[45 ]);
btf_16_adds_subs_out_avx2(&output[19 ], &output[44 ], x[19 ], x[44 ]);
btf_16_adds_subs_out_avx2(&output[20 ], &output[43 ], x[20 ], x[43 ]);
btf_16_adds_subs_out_avx2(&output[21 ], &output[42 ], x[21 ], x[42 ]);
btf_16_adds_subs_out_avx2(&output[22 ], &output[41 ], x[22 ], x[41 ]);
btf_16_adds_subs_out_avx2(&output[23 ], &output[40 ], x[23 ], x[40 ]);
btf_16_adds_subs_out_avx2(&output[24 ], &output[39 ], x[24 ], x[39 ]);
btf_16_adds_subs_out_avx2(&output[25 ], &output[38 ], x[25 ], x[38 ]);
btf_16_adds_subs_out_avx2(&output[26 ], &output[37 ], x[26 ], x[37 ]);
btf_16_adds_subs_out_avx2(&output[27 ], &output[36 ], x[27 ], x[36 ]);
btf_16_adds_subs_out_avx2(&output[28 ], &output[35 ], x[28 ], x[35 ]);
btf_16_adds_subs_out_avx2(&output[29 ], &output[34 ], x[29 ], x[34 ]);
btf_16_adds_subs_out_avx2(&output[30 ], &output[33 ], x[30 ], x[33 ]);
btf_16_adds_subs_out_avx2(&output[31 ], &output[32 ], x[31 ], x[32 ]);
}
static void idct64_low1_avx2(const __m256i *input, __m256i *output) {
const int32_t *cospi = cospi_arr(INV_COS_BIT);
// stage 1
__m256i x[32 ];
x[0 ] = input[0 ];
// stage 2
// stage 3
// stage 4
// stage 5
// stage 6
btf_16_w16_0_avx2(cospi[32 ], cospi[32 ], x[0 ], x[0 ], x[1 ]);
// stage 7
// stage 8
// stage 9
// stage 10
// stage 11
output[0 ] = x[0 ];
output[63 ] = x[0 ];
output[1 ] = x[1 ];
output[62 ] = x[1 ];
output[2 ] = x[1 ];
output[61 ] = x[1 ];
output[3 ] = x[0 ];
output[60 ] = x[0 ];
output[4 ] = x[0 ];
output[59 ] = x[0 ];
output[5 ] = x[1 ];
output[58 ] = x[1 ];
output[6 ] = x[1 ];
output[57 ] = x[1 ];
output[7 ] = x[0 ];
output[56 ] = x[0 ];
output[8 ] = x[0 ];
output[55 ] = x[0 ];
output[9 ] = x[1 ];
output[54 ] = x[1 ];
output[10 ] = x[1 ];
output[53 ] = x[1 ];
output[11 ] = x[0 ];
output[52 ] = x[0 ];
output[12 ] = x[0 ];
output[51 ] = x[0 ];
output[13 ] = x[1 ];
output[50 ] = x[1 ];
output[14 ] = x[1 ];
output[49 ] = x[1 ];
output[15 ] = x[0 ];
output[48 ] = x[0 ];
output[16 ] = x[0 ];
output[47 ] = x[0 ];
output[17 ] = x[1 ];
output[46 ] = x[1 ];
output[18 ] = x[1 ];
output[45 ] = x[1 ];
output[19 ] = x[0 ];
output[44 ] = x[0 ];
output[20 ] = x[0 ];
output[43 ] = x[0 ];
output[21 ] = x[1 ];
output[42 ] = x[1 ];
output[22 ] = x[1 ];
output[41 ] = x[1 ];
output[23 ] = x[0 ];
output[40 ] = x[0 ];
output[24 ] = x[0 ];
output[39 ] = x[0 ];
output[25 ] = x[1 ];
output[38 ] = x[1 ];
output[26 ] = x[1 ];
output[37 ] = x[1 ];
output[27 ] = x[0 ];
output[36 ] = x[0 ];
output[28 ] = x[0 ];
output[35 ] = x[0 ];
output[29 ] = x[1 ];
output[34 ] = x[1 ];
output[30 ] = x[1 ];
output[33 ] = x[1 ];
output[31 ] = x[0 ];
output[32 ] = x[0 ];
}
static void idct64_low8_avx2(const __m256i *input, __m256i *output) {
const int32_t *cospi = cospi_arr(INV_COS_BIT);
const __m256i _r = _mm256_set1_epi32(1 << (INV_COS_BIT - 1 ));
const __m256i cospi_m04_p60 = pair_set_w16_epi16(-cospi[4 ], cospi[60 ]);
const __m256i cospi_p60_p04 = pair_set_w16_epi16(cospi[60 ], cospi[4 ]);
const __m256i cospi_m36_p28 = pair_set_w16_epi16(-cospi[36 ], cospi[28 ]);
const __m256i cospi_m28_m36 = pair_set_w16_epi16(-cospi[28 ], -cospi[36 ]);
const __m256i cospi_m20_p44 = pair_set_w16_epi16(-cospi[20 ], cospi[44 ]);
const __m256i cospi_p44_p20 = pair_set_w16_epi16(cospi[44 ], cospi[20 ]);
const __m256i cospi_m52_p12 = pair_set_w16_epi16(-cospi[52 ], cospi[12 ]);
const __m256i cospi_m12_m52 = pair_set_w16_epi16(-cospi[12 ], -cospi[52 ]);
const __m256i cospi_m08_p56 = pair_set_w16_epi16(-cospi[8 ], cospi[56 ]);
const __m256i cospi_p56_p08 = pair_set_w16_epi16(cospi[56 ], cospi[8 ]);
const __m256i cospi_m40_p24 = pair_set_w16_epi16(-cospi[40 ], cospi[24 ]);
const __m256i cospi_m24_m40 = pair_set_w16_epi16(-cospi[24 ], -cospi[40 ]);
const __m256i cospi_p32_p32 = pair_set_w16_epi16(cospi[32 ], cospi[32 ]);
const __m256i cospi_m16_p48 = pair_set_w16_epi16(-cospi[16 ], cospi[48 ]);
const __m256i cospi_p48_p16 = pair_set_w16_epi16(cospi[48 ], cospi[16 ]);
const __m256i cospi_m32_p32 = pair_set_w16_epi16(-cospi[32 ], cospi[32 ]);
// stage 1
__m256i x[64 ];
x[0 ] = input[0 ];
x[8 ] = input[4 ];
x[16 ] = input[2 ];
x[24 ] = input[6 ];
x[32 ] = input[1 ];
x[40 ] = input[5 ];
x[48 ] = input[3 ];
x[56 ] = input[7 ];
// stage 2
btf_16_w16_0_avx2(cospi[63 ], cospi[1 ], x[32 ], x[32 ], x[63 ]);
btf_16_w16_0_avx2(-cospi[57 ], cospi[7 ], x[56 ], x[39 ], x[56 ]);
btf_16_w16_0_avx2(cospi[59 ], cospi[5 ], x[40 ], x[40 ], x[55 ]);
btf_16_w16_0_avx2(-cospi[61 ], cospi[3 ], x[48 ], x[47 ], x[48 ]);
// stage 3
btf_16_w16_0_avx2(cospi[62 ], cospi[2 ], x[16 ], x[16 ], x[31 ]);
btf_16_w16_0_avx2(-cospi[58 ], cospi[6 ], x[24 ], x[23 ], x[24 ]);
x[33 ] = x[32 ];
x[38 ] = x[39 ];
x[41 ] = x[40 ];
x[46 ] = x[47 ];
x[49 ] = x[48 ];
x[54 ] = x[55 ];
x[57 ] = x[56 ];
x[62 ] = x[63 ];
// stage 4
btf_16_w16_0_avx2(cospi[60 ], cospi[4 ], x[8 ], x[8 ], x[15 ]);
x[17 ] = x[16 ];
x[22 ] = x[23 ];
x[25 ] = x[24 ];
x[30 ] = x[31 ];
btf_16_w16_avx2(cospi_m04_p60, cospi_p60_p04, &x[33 ], &x[tyle='color: green'>62 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_m28_m36, cospi_m36_p28, &x[38 ], &x[tyle='color: green'>57 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_m20_p44, cospi_p44_p20, &x[41 ], &x[tyle='color: green'>54 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_m12_m52, cospi_m52_p12, &x[46 ], &x[tyle='color: green'>49 ], _r,
INV_COS_BIT);
// stage 5
x[9 ] = x[8 ];
x[14 ] = x[15 ];
btf_16_w16_avx2(cospi_m08_p56, cospi_p56_p08, &x[17 ], &x[tyle='color: green'>30 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_m24_m40, cospi_m40_p24, &x[22 ], &x[tyle='color: green'>25 ], _r,
INV_COS_BIT);
x[35 ] = x[32 ];
x[34 ] = x[33 ];
x[36 ] = x[39 ];
x[37 ] = x[38 ];
x[43 ] = x[40 ];
x[42 ] = x[41 ];
x[44 ] = x[47 ];
x[45 ] = x[46 ];
x[51 ] = x[48 ];
x[50 ] = x[49 ];
x[52 ] = x[55 ];
x[53 ] = x[54 ];
x[59 ] = x[56 ];
x[58 ] = x[57 ];
x[60 ] = x[63 ];
x[61 ] = x[62 ];
// stage 6
btf_16_w16_0_avx2(cospi[32 ], cospi[32 ], x[0 ], x[0 ], x[1 ]);
btf_16_w16_avx2(cospi_m16_p48, cospi_p48_p16, &x[9 ], &x[yle='color: green'>14 ], _r, INV_COS_BIT);
x[19 ] = x[16 ];
x[18 ] = x[17 ];
x[20 ] = x[23 ];
x[21 ] = x[22 ];
x[27 ] = x[24 ];
x[26 ] = x[25 ];
x[28 ] = x[31 ];
x[29 ] = x[30 ];
idct64_stage6_high32_avx2(x, cospi, _r, INV_COS_BIT);
// stage 7
x[3 ] = x[0 ];
x[2 ] = x[1 ];
x[11 ] = x[8 ];
x[10 ] = x[9 ];
x[12 ] = x[15 ];
x[13 ] = x[14 ];
idct64_stage7_high48_avx2(x, cospi, _r, INV_COS_BIT);
// stage 8
x[7 ] = x[0 ];
x[6 ] = x[1 ];
x[5 ] = x[2 ];
x[4 ] = x[3 ];
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x[10 ], &x[tyle='color: green'>13 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x[11 ], &x[tyle='color: green'>12 ], _r,
INV_COS_BIT);
idct64_stage8_high48_avx2(x, cospi, _r, INV_COS_BIT);
idct64_stage9_avx2(x, cospi, _r, INV_COS_BIT);
idct64_stage10_avx2(x, cospi, _r, INV_COS_BIT);
idct64_stage11_avx2(output, x);
}
static void idct64_low16_avx2(const __m256i *input, __m256i *output) {
const int32_t *cospi = cospi_arr(INV_COS_BIT);
const __m256i _r = _mm256_set1_epi32(1 << (INV_COS_BIT - 1 ));
const __m256i cospi_p32_p32 = pair_set_w16_epi16(cospi[32 ], cospi[32 ]);
const __m256i cospi_m16_p48 = pair_set_w16_epi16(-cospi[16 ], cospi[48 ]);
const __m256i cospi_p48_p16 = pair_set_w16_epi16(cospi[48 ], cospi[16 ]);
const __m256i cospi_m48_m16 = pair_set_w16_epi16(-cospi[48 ], -cospi[16 ]);
const __m256i cospi_m32_p32 = pair_set_w16_epi16(-cospi[32 ], cospi[32 ]);
// stage 1
__m256i x[64 ];
x[0 ] = input[0 ];
x[4 ] = input[8 ];
x[8 ] = input[4 ];
x[12 ] = input[12 ];
x[16 ] = input[2 ];
x[20 ] = input[10 ];
x[24 ] = input[6 ];
x[28 ] = input[14 ];
x[32 ] = input[1 ];
x[36 ] = input[9 ];
x[40 ] = input[5 ];
x[44 ] = input[13 ];
x[48 ] = input[3 ];
x[52 ] = input[11 ];
x[56 ] = input[7 ];
x[60 ] = input[15 ];
// stage 2
btf_16_w16_0_avx2(cospi[63 ], cospi[1 ], x[32 ], x[32 ], x[63 ]);
btf_16_w16_0_avx2(-cospi[49 ], cospi[15 ], x[60 ], x[35 ], x[60 ]);
btf_16_w16_0_avx2(cospi[55 ], cospi[9 ], x[36 ], x[36 ], x[59 ]);
btf_16_w16_0_avx2(-cospi[57 ], cospi[7 ], x[56 ], x[39 ], x[56 ]);
btf_16_w16_0_avx2(cospi[59 ], cospi[5 ], x[40 ], x[40 ], x[55 ]);
btf_16_w16_0_avx2(-cospi[53 ], cospi[11 ], x[52 ], x[43 ], x[52 ]);
btf_16_w16_0_avx2(cospi[51 ], cospi[13 ], x[44 ], x[44 ], x[51 ]);
btf_16_w16_0_avx2(-cospi[61 ], cospi[3 ], x[48 ], x[47 ], x[48 ]);
// stage 3
btf_16_w16_0_avx2(cospi[62 ], cospi[2 ], x[16 ], x[16 ], x[31 ]);
btf_16_w16_0_avx2(-cospi[50 ], cospi[14 ], x[28 ], x[19 ], x[28 ]);
btf_16_w16_0_avx2(cospi[54 ], cospi[10 ], x[20 ], x[20 ], x[27 ]);
btf_16_w16_0_avx2(-cospi[58 ], cospi[6 ], x[24 ], x[23 ], x[24 ]);
x[33 ] = x[32 ];
x[34 ] = x[35 ];
x[37 ] = x[36 ];
x[38 ] = x[39 ];
x[41 ] = x[40 ];
x[42 ] = x[43 ];
x[45 ] = x[44 ];
x[46 ] = x[47 ];
x[49 ] = x[48 ];
x[50 ] = x[51 ];
x[53 ] = x[52 ];
x[54 ] = x[55 ];
x[57 ] = x[56 ];
x[58 ] = x[59 ];
x[61 ] = x[60 ];
x[62 ] = x[63 ];
// stage 4
btf_16_w16_0_avx2(cospi[60 ], cospi[4 ], x[8 ], x[8 ], x[15 ]);
btf_16_w16_0_avx2(-cospi[52 ], cospi[12 ], x[12 ], x[11 ], x[12 ]);
x[17 ] = x[16 ];
x[18 ] = x[19 ];
x[21 ] = x[20 ];
x[22 ] = x[23 ];
x[25 ] = x[24 ];
x[26 ] = x[27 ];
x[29 ] = x[28 ];
x[30 ] = x[31 ];
idct64_stage4_high32_avx2(x, cospi, _r, INV_COS_BIT);
// stage 5
btf_16_w16_0_avx2(cospi[56 ], cospi[8 ], x[4 ], x[4 ], x[7 ]);
x[9 ] = x[8 ];
x[10 ] = x[11 ];
x[13 ] = x[12 ];
x[14 ] = x[15 ];
idct64_stage5_high48_avx2(x, cospi, _r, INV_COS_BIT);
// stage 6
btf_16_w16_0_avx2(cospi[32 ], cospi[32 ], x[0 ], x[0 ], x[1 ]);
x[5 ] = x[4 ];
x[6 ] = x[7 ];
btf_16_w16_avx2(cospi_m16_p48, cospi_p48_p16, &x[9 ], &x[yle='color: green'>14 ], _r, INV_COS_BIT);
btf_16_w16_avx2(cospi_m48_m16, cospi_m16_p48, &x[10 ], &x[tyle='color: green'>13 ], _r,
INV_COS_BIT);
idct64_stage6_high48_avx2(x, cospi, _r, INV_COS_BIT);
// stage 7
x[3 ] = x[0 ];
x[2 ] = x[1 ];
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x[5 ], &x[yle='color: green'>6 ], _r, INV_COS_BIT);
btf_16_adds_subs_avx2(&x[8 ], &x[11 ]);
btf_16_adds_subs_avx2(&x[9 ], &x[10 ]);
btf_16_adds_subs_avx2(&x[15 ], &x[12 ]);
btf_16_adds_subs_avx2(&x[14 ], &x[13 ]);
idct64_stage7_high48_avx2(x, cospi, _r, INV_COS_BIT);
// stage 8
btf_16_adds_subs_avx2(&x[0 ], &x[7 ]);
btf_16_adds_subs_avx2(&x[1 ], &x[6 ]);
btf_16_adds_subs_avx2(&x[2 ], &x[5 ]);
btf_16_adds_subs_avx2(&x[3 ], &x[4 ]);
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x[10 ], &x[tyle='color: green'>13 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x[11 ], &x[tyle='color: green'>12 ], _r,
INV_COS_BIT);
idct64_stage8_high48_avx2(x, cospi, _r, INV_COS_BIT);
idct64_stage9_avx2(x, cospi, _r, INV_COS_BIT);
idct64_stage10_avx2(x, cospi, _r, INV_COS_BIT);
idct64_stage11_avx2(output, x);
}
static void idct64_low32_avx2(const __m256i *input, __m256i *output) {
const int32_t *cospi = cospi_arr(INV_COS_BIT);
const __m256i _r = _mm256_set1_epi32(1 << (INV_COS_BIT - 1 ));
const __m256i cospi_p32_p32 = pair_set_w16_epi16(cospi[32 ], cospi[32 ]);
const __m256i cospi_m16_p48 = pair_set_w16_epi16(-cospi[16 ], cospi[48 ]);
const __m256i cospi_p48_p16 = pair_set_w16_epi16(cospi[48 ], cospi[16 ]);
const __m256i cospi_m48_m16 = pair_set_w16_epi16(-cospi[48 ], -cospi[16 ]);
const __m256i cospi_m32_p32 = pair_set_w16_epi16(-cospi[32 ], cospi[32 ]);
// stage 1
__m256i x[64 ];
x[0 ] = input[0 ];
x[2 ] = input[16 ];
x[4 ] = input[8 ];
x[6 ] = input[24 ];
x[8 ] = input[4 ];
x[10 ] = input[20 ];
x[12 ] = input[12 ];
x[14 ] = input[28 ];
x[16 ] = input[2 ];
x[18 ] = input[18 ];
x[20 ] = input[10 ];
x[22 ] = input[26 ];
x[24 ] = input[6 ];
x[26 ] = input[22 ];
x[28 ] = input[14 ];
x[30 ] = input[30 ];
x[32 ] = input[1 ];
x[34 ] = input[17 ];
x[36 ] = input[9 ];
x[38 ] = input[25 ];
x[40 ] = input[5 ];
x[42 ] = input[21 ];
x[44 ] = input[13 ];
x[46 ] = input[29 ];
x[48 ] = input[3 ];
x[50 ] = input[19 ];
x[52 ] = input[11 ];
x[54 ] = input[27 ];
x[56 ] = input[7 ];
x[58 ] = input[23 ];
x[60 ] = input[15 ];
x[62 ] = input[31 ];
// stage 2
btf_16_w16_0_avx2(cospi[63 ], cospi[1 ], x[32 ], x[32 ], x[63 ]);
btf_16_w16_0_avx2(-cospi[33 ], cospi[31 ], x[62 ], x[33 ], x[62 ]);
btf_16_w16_0_avx2(cospi[47 ], cospi[17 ], x[34 ], x[34 ], x[61 ]);
btf_16_w16_0_avx2(-cospi[49 ], cospi[15 ], x[60 ], x[35 ], x[60 ]);
btf_16_w16_0_avx2(cospi[55 ], cospi[9 ], x[36 ], x[36 ], x[59 ]);
btf_16_w16_0_avx2(-cospi[41 ], cospi[23 ], x[58 ], x[37 ], x[58 ]);
btf_16_w16_0_avx2(cospi[39 ], cospi[25 ], x[38 ], x[38 ], x[57 ]);
btf_16_w16_0_avx2(-cospi[57 ], cospi[7 ], x[56 ], x[39 ], x[56 ]);
btf_16_w16_0_avx2(cospi[59 ], cospi[5 ], x[40 ], x[40 ], x[55 ]);
btf_16_w16_0_avx2(-cospi[37 ], cospi[27 ], x[54 ], x[41 ], x[54 ]);
btf_16_w16_0_avx2(cospi[43 ], cospi[21 ], x[42 ], x[42 ], x[53 ]);
btf_16_w16_0_avx2(-cospi[53 ], cospi[11 ], x[52 ], x[43 ], x[52 ]);
btf_16_w16_0_avx2(cospi[51 ], cospi[13 ], x[44 ], x[44 ], x[51 ]);
btf_16_w16_0_avx2(-cospi[45 ], cospi[19 ], x[50 ], x[45 ], x[50 ]);
btf_16_w16_0_avx2(cospi[35 ], cospi[29 ], x[46 ], x[46 ], x[49 ]);
btf_16_w16_0_avx2(-cospi[61 ], cospi[3 ], x[48 ], x[47 ], x[48 ]);
// stage 3
btf_16_w16_0_avx2(cospi[62 ], cospi[2 ], x[16 ], x[16 ], x[31 ]);
btf_16_w16_0_avx2(-cospi[34 ], cospi[30 ], x[30 ], x[17 ], x[30 ]);
btf_16_w16_0_avx2(cospi[46 ], cospi[18 ], x[18 ], x[18 ], x[29 ]);
btf_16_w16_0_avx2(-cospi[50 ], cospi[14 ], x[28 ], x[19 ], x[28 ]);
btf_16_w16_0_avx2(cospi[54 ], cospi[10 ], x[20 ], x[20 ], x[27 ]);
btf_16_w16_0_avx2(-cospi[42 ], cospi[22 ], x[26 ], x[21 ], x[26 ]);
btf_16_w16_0_avx2(cospi[38 ], cospi[26 ], x[22 ], x[22 ], x[25 ]);
btf_16_w16_0_avx2(-cospi[58 ], cospi[6 ], x[24 ], x[23 ], x[24 ]);
btf_16_adds_subs_avx2(&x[32 ], &x[33 ]);
btf_16_adds_subs_avx2(&x[35 ], &x[34 ]);
btf_16_adds_subs_avx2(&x[36 ], &x[37 ]);
btf_16_adds_subs_avx2(&x[39 ], &x[38 ]);
btf_16_adds_subs_avx2(&x[40 ], &x[41 ]);
btf_16_adds_subs_avx2(&x[43 ], &x[42 ]);
btf_16_adds_subs_avx2(&x[44 ], &x[45 ]);
btf_16_adds_subs_avx2(&x[47 ], &x[46 ]);
btf_16_adds_subs_avx2(&x[48 ], &x[49 ]);
btf_16_adds_subs_avx2(&x[51 ], &x[50 ]);
btf_16_adds_subs_avx2(&x[52 ], &x[53 ]);
btf_16_adds_subs_avx2(&x[55 ], &x[54 ]);
btf_16_adds_subs_avx2(&x[56 ], &x[57 ]);
btf_16_adds_subs_avx2(&x[59 ], &x[58 ]);
btf_16_adds_subs_avx2(&x[60 ], &x[61 ]);
btf_16_adds_subs_avx2(&x[63 ], &x[62 ]);
// stage 4
btf_16_w16_0_avx2(cospi[60 ], cospi[4 ], x[8 ], x[8 ], x[15 ]);
btf_16_w16_0_avx2(-cospi[36 ], cospi[28 ], x[14 ], x[9 ], x[14 ]);
btf_16_w16_0_avx2(cospi[44 ], cospi[20 ], x[10 ], x[10 ], x[13 ]);
btf_16_w16_0_avx2(-cospi[52 ], cospi[12 ], x[12 ], x[11 ], x[12 ]);
btf_16_adds_subs_avx2(&x[16 ], &x[17 ]);
btf_16_adds_subs_avx2(&x[19 ], &x[18 ]);
btf_16_adds_subs_avx2(&x[20 ], &x[21 ]);
btf_16_adds_subs_avx2(&x[23 ], &x[22 ]);
btf_16_adds_subs_avx2(&x[24 ], &x[25 ]);
btf_16_adds_subs_avx2(&x[27 ], &x[26 ]);
btf_16_adds_subs_avx2(&x[28 ], &x[29 ]);
btf_16_adds_subs_avx2(&x[31 ], &x[30 ]);
idct64_stage4_high32_avx2(x, cospi, _r, INV_COS_BIT);
// stage 5
btf_16_w16_0_avx2(cospi[56 ], cospi[8 ], x[4 ], x[4 ], x[7 ]);
btf_16_w16_0_avx2(-cospi[40 ], cospi[24 ], x[6 ], x[5 ], x[6 ]);
btf_16_adds_subs_avx2(&x[8 ], &x[9 ]);
btf_16_adds_subs_avx2(&x[11 ], &x[10 ]);
btf_16_adds_subs_avx2(&x[12 ], &x[13 ]);
btf_16_adds_subs_avx2(&x[15 ], &x[14 ]);
idct64_stage5_high48_avx2(x, cospi, _r, INV_COS_BIT);
// stage 6
btf_16_w16_0_avx2(cospi[32 ], cospi[32 ], x[0 ], x[0 ], x[1 ]);
btf_16_w16_0_avx2(cospi[48 ], cospi[16 ], x[2 ], x[2 ], x[3 ]);
btf_16_adds_subs_avx2(&x[4 ], &x[5 ]);
btf_16_adds_subs_avx2(&x[7 ], &x[6 ]);
btf_16_w16_avx2(cospi_m16_p48, cospi_p48_p16, &x[9 ], &x[yle='color: green'>14 ], _r, INV_COS_BIT);
btf_16_w16_avx2(cospi_m48_m16, cospi_m16_p48, &x[10 ], &x[tyle='color: green'>13 ], _r,
INV_COS_BIT);
idct64_stage6_high48_avx2(x, cospi, _r, INV_COS_BIT);
// stage 7
btf_16_adds_subs_avx2(&x[0 ], &x[3 ]);
btf_16_adds_subs_avx2(&x[1 ], &x[2 ]);
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x[5 ], &x[yle='color: green'>6 ], _r, INV_COS_BIT);
btf_16_adds_subs_avx2(&x[8 ], &x[11 ]);
btf_16_adds_subs_avx2(&x[9 ], &x[10 ]);
btf_16_adds_subs_avx2(&x[15 ], &x[12 ]);
btf_16_adds_subs_avx2(&x[14 ], &x[13 ]);
idct64_stage7_high48_avx2(x, cospi, _r, INV_COS_BIT);
// stage 8
btf_16_adds_subs_avx2(&x[0 ], &x[7 ]);
btf_16_adds_subs_avx2(&x[1 ], &x[6 ]);
btf_16_adds_subs_avx2(&x[2 ], &x[5 ]);
btf_16_adds_subs_avx2(&x[3 ], &x[4 ]);
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x[10 ], &x[tyle='color: green'>13 ], _r,
INV_COS_BIT);
btf_16_w16_avx2(cospi_m32_p32, cospi_p32_p32, &x[11 ], &x[tyle='color: green'>12 ], _r,
INV_COS_BIT);
idct64_stage8_high48_avx2(x, cospi, _r, INV_COS_BIT);
// stage 9~11
idct64_stage9_avx2(x, cospi, _r, INV_COS_BIT);
idct64_stage10_avx2(x, cospi, _r, INV_COS_BIT);
idct64_stage11_avx2(output, x);
}
typedef void (*transform_1d_avx2)(const __m256i *input, __m256i *output);
// 1D functions process 16 pixels at one time.
static const transform_1d_avx2
lowbd_txfm_all_1d_zeros_w16_arr[TX_SIZES][ITX_TYPES_1D][4 ] = {
{
{ NULL, NULL, NULL, NULL },
{ NULL, NULL, NULL, NULL },
{ NULL, NULL, NULL, NULL },
},
{ { NULL, NULL, NULL, NULL },
{ NULL, NULL, NULL, NULL },
{ NULL, NULL, NULL, NULL } },
{
{ idct16_low1_avx2, idct16_low8_avx2, idct16_avx2, NULL },
{ iadst16_low1_avx2, iadst16_low8_avx2, iadst16_avx2, NULL },
{ NULL, NULL, NULL, NULL },
},
{ { idct32_low1_avx2, idct32_low8_avx2, idct32_low16_avx2, idct32_avx2 },
{ NULL, NULL, NULL, NULL },
{ NULL, NULL, NULL, NULL } },
{ { idct64_low1_avx2, idct64_low8_avx2, idct64_low16_avx2,
idct64_low32_avx2 },
{ NULL, NULL, NULL, NULL },
{ NULL, NULL, NULL, NULL } }
};
// only process w >= 16 h >= 16
static inline void lowbd_inv_txfm2d_add_no_identity_avx2(
const int32_t *input, uint8_t *output, int stride, TX_TYPE tx_type,
TX_SIZE tx_size, int eob) {
__m256i buf1[64 * 16 ];
int eobx, eoby;
get_eobx_eoby_scan_default(&eobx, &eoby, tx_size, eob);
const int8_t *shift = av1_inv_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 txfm_size_col = tx_size_wide[tx_size];
const int txfm_size_row = tx_size_high[tx_size];
const int buf_size_w_div16 = txfm_size_col >> 4 ;
const int buf_size_nonzero_w = ((eobx + 16 ) >> 4 ) << 4 ;
const int buf_size_nonzero_h_div16 = (eoby + 16 ) >> 4 ;
const int input_stride = AOMMIN(32 , txfm_size_row);
const int rect_type = get_rect_tx_log_ratio(txfm_size_col, txfm_size_row);
const int fun_idx_x = lowbd_txfm_all_1d_zeros_idx[eobx];
const int fun_idx_y = lowbd_txfm_all_1d_zeros_idx[eoby];
const transform_1d_avx2 row_txfm =
lowbd_txfm_all_1d_zeros_w16_arr[txw_idx][hitx_1d_tab[tx_type]][fun_idx_x];
const transform_1d_avx2 col_txfm =
lowbd_txfm_all_1d_zeros_w16_arr[txh_idx][vitx_1d_tab[tx_type]][fun_idx_y];
assert(col_txfm != NULL);
assert(row_txfm != NULL);
int ud_flip, lr_flip;
get_flip_cfg(tx_type, &ud_flip, &lr_flip);
const __m256i scale0 = _mm256_set1_epi16(1 << (15 + shift[0 ]));
for (int i = 0 ; i < buf_size_nonzero_h_div16; i++) {
__m256i buf0[64 ];
load_buffer_32bit_to_16bit_w16_avx2(input + 16 * i, input_stride, buf0,
buf_size_nonzero_w);
if (rect_type == 1 || rect_type == -1 ) {
round_shift_avx2(buf0, buf0, buf_size_nonzero_w); // rect special code
}
row_txfm(buf0, buf0);
for (int j = 0 ; j < txfm_size_col; ++j) {
buf0[j] = _mm256_mulhrs_epi16(buf0[j], scale0);
}
__m256i *buf1_cur = buf1 + (i << 4 );
if (lr_flip) {
for (int j = 0 ; j < buf_size_w_div16; ++j) {
__m256i temp[16 ];
flip_buf_avx2(buf0 + 16 * j, temp, 16 );
int offset = txfm_size_row * (buf_size_w_div16 - 1 - j);
transpose_16bit_16x16_avx2(temp, buf1_cur + offset);
}
} else {
for (int j = 0 ; j < buf_size_w_div16; ++j) {
transpose_16bit_16x16_avx2(buf0 + 16 * j, buf1_cur + txfm_size_row * j);
}
}
}
const __m256i scale1 = _mm256_set1_epi16(1 << (15 + shift[1 ]));
for (int i = 0 ; i < buf_size_w_div16; i++) {
__m256i *buf1_cur = buf1 + i * txfm_size_row;
col_txfm(buf1_cur, buf1_cur);
for (int j = 0 ; j < txfm_size_row; ++j) {
buf1_cur[j] = _mm256_mulhrs_epi16(buf1_cur[j], scale1);
}
}
for (int i = 0 ; i < buf_size_w_div16; i++) {
lowbd_write_buffer_16xn_avx2(buf1 + i * txfm_size_row, output + 16 * i,
stride, ud_flip, txfm_size_row);
}
}
static inline void iidentity_row_16xn_avx2(__m256i *out, const int32_t *input,
int stride, int shift, int height,
int txw_idx, int rect_type) {
const int32_t *input_row = input;
const __m256i scale = _mm256_set1_epi16(NewSqrt2list[txw_idx]);
const __m256i _r = _mm256_set1_epi16((1 << (NewSqrt2Bits - 1 )) +
(1 << (NewSqrt2Bits - shift - 1 )));
const __m256i one = _mm256_set1_epi16(1 );
const __m256i scale__r = _mm256_unpacklo_epi16(scale, _r);
if (rect_type != 1 && rect_type != -1 ) {
for (int i = 0 ; i < height; ++i) {
const __m256i src = load_32bit_to_16bit_w16_avx2(input_row);
input_row += stride;
__m256i lo = _mm256_unpacklo_epi16(src, one);
__m256i hi = _mm256_unpackhi_epi16(src, one);
lo = _mm256_madd_epi16(lo, scale__r);
hi = _mm256_madd_epi16(hi, scale__r);
lo = _mm256_srai_epi32(lo, NewSqrt2Bits - shift);
hi = _mm256_srai_epi32(hi, NewSqrt2Bits - shift);
out[i] = _mm256_packs_epi32(lo, hi);
}
} else {
const __m256i rect_scale =
_mm256_set1_epi16(NewInvSqrt2 << (15 - NewSqrt2Bits));
for (int i = 0 ; i < height; ++i) {
__m256i src = load_32bit_to_16bit_w16_avx2(input_row);
src = _mm256_mulhrs_epi16(src, rect_scale);
input_row += stride;
__m256i lo = _mm256_unpacklo_epi16(src, one);
__m256i hi = _mm256_unpackhi_epi16(src, one);
lo = _mm256_madd_epi16(lo, scale__r);
hi = _mm256_madd_epi16(hi, scale__r);
lo = _mm256_srai_epi32(lo, NewSqrt2Bits - shift);
hi = _mm256_srai_epi32(hi, NewSqrt2Bits - shift);
out[i] = _mm256_packs_epi32(lo, hi);
}
}
}
static inline void iidentity_col_16xn_avx2(uint8_t *output, int stride,
__m256i *buf, int shift, int height,
int txh_idx) {
const __m256i scale = _mm256_set1_epi16(NewSqrt2list[txh_idx]);
const __m256i scale__r = _mm256_set1_epi16(1 << (NewSqrt2Bits - 1 ));
const __m256i shift__r = _mm256_set1_epi32(1 << (-shift - 1 ));
const __m256i one = _mm256_set1_epi16(1 );
const __m256i scale_coeff = _mm256_unpacklo_epi16(scale, scale__r);
for (int h = 0 ; h < height; ++h) {
__m256i lo = _mm256_unpacklo_epi16(buf[h], one);
__m256i hi = _mm256_unpackhi_epi16(buf[h], one);
lo = _mm256_madd_epi16(lo, scale_coeff);
hi = _mm256_madd_epi16(hi, scale_coeff);
lo = _mm256_srai_epi32(lo, NewSqrt2Bits);
hi = _mm256_srai_epi32(hi, NewSqrt2Bits);
lo = _mm256_add_epi32(lo, shift__r);
hi = _mm256_add_epi32(hi, shift__r);
lo = _mm256_srai_epi32(lo, -shift);
hi = _mm256_srai_epi32(hi, -shift);
const __m256i x = _mm256_packs_epi32(lo, hi);
write_recon_w16_avx2(x, output);
output += stride;
}
}
static inline void lowbd_inv_txfm2d_add_idtx_avx2(const int32_t *input,
uint8_t *output, int stride,
TX_SIZE tx_size,
int32_t eob) {
(void )eob;
const int8_t *shift = av1_inv_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 txfm_size_col = tx_size_wide[tx_size];
const int txfm_size_row = tx_size_high[tx_size];
const int col_max = AOMMIN(32 , txfm_size_col);
const int row_max = AOMMIN(32 , txfm_size_row);
const int input_stride = row_max;
const int rect_type = get_rect_tx_log_ratio(txfm_size_col, txfm_size_row);
__m256i buf[32 ];
for (int i = 0 ; i < (col_max >> 4 ); ++i) {
for (int j = 0 ; j < (row_max >> 4 ); j++) {
iidentity_row_16xn_avx2(buf, input + j * 16 + i * 16 * input_stride,
row_max, shift[0 ], 16 , txw_idx, rect_type);
transpose_16bit_16x16_avx2(buf, buf);
iidentity_col_16xn_avx2(output + i * 16 + j * 16 * stride, stride, buf,
shift[1 ], 16 , txh_idx);
}
}
}
static inline void lowbd_inv_txfm2d_add_h_identity_avx2(
const int32_t *input, uint8_t *output, int stride, TX_TYPE tx_type,
TX_SIZE tx_size, int eob) {
int eobx, eoby;
get_eobx_eoby_scan_h_identity(&eobx, &eoby, tx_size, eob);
const int8_t *shift = av1_inv_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 txfm_size_col = tx_size_wide[tx_size];
const int txfm_size_row = tx_size_high[tx_size];
const int txfm_size_row_notzero = AOMMIN(32 , txfm_size_row);
const int input_stride = txfm_size_row_notzero;
const int buf_size_w_div16 = (eobx + 16 ) >> 4 ;
const int buf_size_h_div16 = (eoby + 16 ) >> 4 ;
const int rect_type = get_rect_tx_log_ratio(txfm_size_col, txfm_size_row);
const int fun_idx_y = lowbd_txfm_all_1d_zeros_idx[eoby];
const transform_1d_avx2 col_txfm =
lowbd_txfm_all_1d_zeros_w16_arr[txh_idx][vitx_1d_tab[tx_type]][fun_idx_y];
assert(col_txfm != NULL);
int ud_flip, lr_flip;
get_flip_cfg(tx_type, &ud_flip, &lr_flip);
for (int i = 0 ; i < buf_size_w_div16; i++) {
__m256i buf0[64 ];
for (int j = 0 ; j < buf_size_h_div16; j++) {
__m256i *buf0_cur = buf0 + j * 16 ;
const int32_t *input_cur = input + i * 16 * input_stride + j * 16 ;
iidentity_row_16xn_avx2(buf0_cur, input_cur, input_stride, shift[0 ], 16 ,
txw_idx, rect_type);
transpose_16bit_16x16_avx2(buf0_cur, buf0_cur);
}
col_txfm(buf0, buf0);
__m256i mshift = _mm256_set1_epi16(1 << (15 + shift[1 ]));
int k = ud_flip ? (txfm_size_row - 1 ) : 0 ;
const int step = ud_flip ? -1 : 1 ;
for (int j = 0 ; j < txfm_size_row; ++j, k += step) {
__m256i res = _mm256_mulhrs_epi16(buf0[k], mshift);
write_recon_w16_avx2(res, output + (i << 4 ) + j * stride);
}
}
}
static inline void lowbd_inv_txfm2d_add_v_identity_avx2(
const int32_t *input, uint8_t *output, int stride, TX_TYPE tx_type,
TX_SIZE tx_size, int eob) {
__m256i buf1[64 ];
int eobx, eoby;
get_eobx_eoby_scan_v_identity(&eobx, &eoby, tx_size, eob);
const int8_t *shift = av1_inv_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 txfm_size_col = tx_size_wide[tx_size];
const int txfm_size_row = tx_size_high[tx_size];
const int buf_size_w_div16 = txfm_size_col >> 4 ;
const int buf_size_h_div16 = (eoby + 16 ) >> 4 ;
const int buf_size_nonzero_w = ((eobx + 8 ) >> 3 ) << 3 ;
const int input_stride = AOMMIN(32 , txfm_size_row);
const int rect_type = get_rect_tx_log_ratio(txfm_size_col, txfm_size_row);
const int fun_idx_x = lowbd_txfm_all_1d_zeros_idx[eobx];
const transform_1d_avx2 row_txfm =
lowbd_txfm_all_1d_zeros_w16_arr[txw_idx][hitx_1d_tab[tx_type]][fun_idx_x];
assert(row_txfm != NULL);
int ud_flip, lr_flip;
get_flip_cfg(tx_type, &ud_flip, &lr_flip);
for (int i = 0 ; i < buf_size_h_div16; i++) {
__m256i buf0[64 ];
load_buffer_32bit_to_16bit_w16_avx2(input + i * 16 , input_stride, buf0,
buf_size_nonzero_w);
if (rect_type == 1 || rect_type == -1 ) {
round_shift_avx2(buf0, buf0, buf_size_nonzero_w); // rect special code
}
row_txfm(buf0, buf0);
round_shift_16bit_w16_avx2(buf0, txfm_size_col, shift[0 ]);
__m256i *_buf1 = buf1;
if (lr_flip) {
for (int j = 0 ; j < buf_size_w_div16; ++j) {
__m256i temp[16 ];
flip_buf_avx2(buf0 + 16 * j, temp, 16 );
transpose_16bit_16x16_avx2(temp,
_buf1 + 16 * (buf_size_w_div16 - 1 - j));
}
} else {
for (int j = 0 ; j < buf_size_w_div16; ++j) {
transpose_16bit_16x16_avx2(buf0 + 16 * j, _buf1 + 16 * j);
}
}
for (int j = 0 ; j < buf_size_w_div16; ++j) {
iidentity_col_16xn_avx2(output + i * 16 * stride + j * 16 , stride,
buf1 + j * 16 , shift[1 ], 16 , txh_idx);
}
}
}
static const transform_1d_ssse3 lowbd_txfm_all_1d_zeros_8x8_arr[2 ][2 ] = {
{ av1_idct8_low1_ssse3, av1_idct8_sse2 },
{ av1_iadst8_low1_ssse3, av1_iadst8_sse2 }
};
static inline void load_buffer_avx2(const int32_t *in, int stride,
__m128i *out) {
const __m256i a = _mm256_load_si256((const __m256i *)in);
const __m256i b = _mm256_load_si256((const __m256i *)(in + stride * 1 ));
const __m256i c = _mm256_load_si256((const __m256i *)(in + stride * 2 ));
const __m256i d = _mm256_load_si256((const __m256i *)(in + stride * 3 ));
const __m256i e = _mm256_load_si256((const __m256i *)(in + stride * 4 ));
const __m256i f = _mm256_load_si256((const __m256i *)(in + stride * 5 ));
const __m256i g = _mm256_load_si256((const __m256i *)(in + stride * 6 ));
const __m256i h = _mm256_load_si256((const __m256i *)(in + stride * 7 ));
// a0 a1 a2 a3 b0 b1 b2 b3 a4 a5 a6 a7 b4 b5 b6 b7
const __m256i ab_16bit = _mm256_packs_epi32(a, b);
// c0 c1 c2 c3 d0 d1 d2 d3 c4 c5 c6 c7 d4 d5 d6 d7
const __m256i cd_16bit = _mm256_packs_epi32(c, d);
// e0 e1 e2 e3 f0 f1 f2 f3 e4 e5 e6 e7 f4 f5 f6 f7
const __m256i ef_16bit = _mm256_packs_epi32(e, f);
// g0 g1 g2 g3 h0 h1 h2 h3 g4 g5 g6 g7 h4 h5 h6 h7
const __m256i gh_16bit = _mm256_packs_epi32(g, h);
// a0 a1 a2 a3 a4 a5 a6 a7 b0 b1 b2 b3 b4 b5 b6 b7
const __m256i ab = _mm256_permute4x64_epi64(ab_16bit, 0 xd8);
// c0 c1 c2 c3 c4 c5 c6 c7 d0 d1 d2 d3 d4 d5 d6 d7
const __m256i cd = _mm256_permute4x64_epi64(cd_16bit, 0 xd8);
// e0 e1 e2 e3 e4 e5 e6 e7 f0 f1 f2 f3 f4 f5 f6 f7
const __m256i ef = _mm256_permute4x64_epi64(ef_16bit, 0 xd8);
// g0 g1 g2 g3 g4 g5 g6 g7 h0 h1 h2 h3 h4 h5 h6 h7
const __m256i gh = _mm256_permute4x64_epi64(gh_16bit, 0 xd8);
out[0 ] = _mm256_castsi256_si128(ab);
out[1 ] = _mm256_extractf128_si256(ab, 1 );
out[2 ] = _mm256_castsi256_si128(cd);
out[3 ] = _mm256_extractf128_si256(cd, 1 );
out[4 ] = _mm256_castsi256_si128(ef);
out[5 ] = _mm256_extractf128_si256(ef, 1 );
out[6 ] = _mm256_castsi256_si128(gh);
out[7 ] = _mm256_extractf128_si256(gh, 1 );
}
static inline void round_and_transpose_avx2(const __m128i *const in,
__m128i *const out, int bit,
int *lr_flip) {
__m256i buf_temp[4 ];
const __m256i scale = _mm256_set1_epi16(1 << (15 + bit));
int j = *lr_flip ? 7 : 0 ;
const int step = *lr_flip ? -1 : 1 ;
// 70 71 72 73 74 75 76 77 | 30 31 32 33 34 35 36 37
buf_temp[0 ] = _mm256_inserti128_si256(_mm256_castsi128_si256(in[j]),
in[j + 4 * step], 1 );
j += step;
// 60 61 62 63 64 65 66 67 | 20 21 22 23 24 25 26 27
buf_temp[1 ] = _mm256_inserti128_si256(_mm256_castsi128_si256(in[j]),
in[j + 4 * step], 1 );
j += step;
// 50 51 52 53 54 55 56 57 | 10 11 12 13 14 15 16 17
buf_temp[2 ] = _mm256_inserti128_si256(_mm256_castsi128_si256(in[j]),
in[j + 4 * step], 1 );
j += step;
// 40 41 42 43 44 45 46 47 | 00 01 02 03 04 05 06 07
buf_temp[3 ] = _mm256_inserti128_si256(_mm256_castsi128_si256(in[j]),
in[j + 4 * step], 1 );
// 70 71 72 73 74 75 76 77 | 30 31 32 33 34 35 36 37
buf_temp[0 ] = _mm256_mulhrs_epi16(buf_temp[0 ], scale);
// 60 61 62 63 64 65 66 67 | 20 21 22 23 24 25 26 27
buf_temp[1 ] = _mm256_mulhrs_epi16(buf_temp[1 ], scale);
// 50 51 52 53 54 55 56 57 | 10 11 12 13 14 15 16 17
buf_temp[2 ] = _mm256_mulhrs_epi16(buf_temp[2 ], scale);
// 40 41 42 43 44 45 46 47 | 00 01 02 03 04 05 06 07
buf_temp[3 ] = _mm256_mulhrs_epi16(buf_temp[3 ], scale);
// 70 60 71 61 72 62 73 63 | 30 20 31 21 32 22 33 23
const __m256i unpcklo0 = _mm256_unpacklo_epi16(buf_temp[0 ], buf_temp[1 ]);
// 74 64 75 65 76 66 77 67 | 34 24 35 25 36 26 37 27
const __m256i unpckhi0 = _mm256_unpackhi_epi16(buf_temp[0 ], buf_temp[1 ]);
// 50 40 51 41 52 42 53 43 | 10 00 11 01 12 02 13 03
const __m256i unpcklo1 = _mm256_unpacklo_epi16(buf_temp[2 ], buf_temp[3 ]);
// 54 44 55 45 56 46 57 47 | 14 04 15 05 16 06 17 07
const __m256i unpckhi1 = _mm256_unpackhi_epi16(buf_temp[2 ], buf_temp[3 ]);
// 70 60 50 40 71 61 51 41 | 30 20 10 00 31 21 11 01
const __m256i unpcklo00 = _mm256_unpacklo_epi32(unpcklo0, unpcklo1);
// 72 62 52 42 73 63 53 43 | 32 22 12 02 33 23 13 03
const __m256i unpckhi00 = _mm256_unpackhi_epi32(unpcklo0, unpcklo1);
// 74 64 54 44 75 65 55 45 | 34 24 14 04 35 25 15 05
const __m256i unpcklo01 = _mm256_unpacklo_epi32(unpckhi0, unpckhi1);
// 76 66 56 46 77 67 57 47 | 36 26 16 06 37 27 17 07
const __m256i unpckhi01 = _mm256_unpackhi_epi32(unpckhi0, unpckhi1);
// 70 60 50 40 30 20 10 00 | 71 61 51 41 31 21 11 01
const __m256i reg_00 = _mm256_permute4x64_epi64(unpcklo00, 0 xd8);
// 72 62 52 42 32 22 12 02 | 73 63 53 43 33 23 13 03
const __m256i reg_01 = _mm256_permute4x64_epi64(unpckhi00, 0 xd8);
// 74 64 54 44 34 24 14 04 | 75 65 55 45 35 25 15 05
const __m256i reg_10 = _mm256_permute4x64_epi64(unpcklo01, 0 xd8);
// 76 66 56 46 36 26 16 06 | 77 67 57 47 37 27 17 07
const __m256i reg_11 = _mm256_permute4x64_epi64(unpckhi01, 0 xd8);
// 70 60 50 40 30 20 10 00
out[0 ] = _mm256_castsi256_si128(reg_00);
// 71 61 51 41 31 21 11 01
out[1 ] = _mm256_extracti128_si256(reg_00, 1 );
// 72 62 52 42 32 22 12 02
out[2 ] = _mm256_castsi256_si128(reg_01);
// 73 63 53 43 33 23 13 03
out[3 ] = _mm256_extracti128_si256(reg_01, 1 );
// 74 64 54 44 34 24 14 04
out[4 ] = _mm256_castsi256_si128(reg_10);
// 75 65 55 45 35 25 15 05
out[5 ] = _mm256_extracti128_si256(reg_10, 1 );
// 76 66 56 46 36 26 16 06
out[6 ] = _mm256_castsi256_si128(reg_11);
// 77 67 57 47 37 27 17 07
out[7 ] = _mm256_extracti128_si256(reg_11, 1 );
}
static inline void round_shift_lowbd_write_buffer_avx2(__m128i *in, int bit,
uint8_t *output,
int stride, int flipud) {
__m256i in_256[4 ], v_256[4 ];
int j = flipud ? 7 : 0 ;
const int step = flipud ? -1 : 1 ;
const __m256i scale = _mm256_set1_epi16(1 << (15 + bit));
const __m256i zero = _mm256_setzero_si256();
// in[0], in[1]
in_256[0 ] =
_mm256_inserti128_si256(_mm256_castsi128_si256(in[j]), in[j + step], 1 );
j += 2 * step;
// in[2], in[3]
in_256[1 ] =
_mm256_inserti128_si256(_mm256_castsi128_si256(in[j]), in[j + step], 1 );
j += 2 * step;
// in[4], in[5]
in_256[2 ] =
_mm256_inserti128_si256(_mm256_castsi128_si256(in[j]), in[j + step], 1 );
j += 2 * step;
// in[6], in[7]
in_256[3 ] =
_mm256_inserti128_si256(_mm256_castsi128_si256(in[j]), in[j + step], 1 );
// i00 i01 i02 i03 i04 i05 i06 i07 i10 i11 i12 i13 i14 i15 i16 i17
in_256[0 ] = _mm256_mulhrs_epi16(in_256[0 ], scale);
// i20 i21 i22 i23 i24 i25 i26 i27 i30 i31 i32 i33 i34 i35 i36 i37
in_256[1 ] = _mm256_mulhrs_epi16(in_256[1 ], scale);
// i40 i41 i42 i43 i44 i45 i46 i47 i50 i51 i52 i53 i54 i55 i56 i57
in_256[2 ] = _mm256_mulhrs_epi16(in_256[2 ], scale);
// i60 i61 i62 i63 i64 i65 i66 i67 i70 i71 i72 i73 i74 i75 i76 i77
in_256[3 ] = _mm256_mulhrs_epi16(in_256[3 ], scale);
const __m128i v0 = _mm_loadl_epi64((__m128i const *)(output));
const __m128i v1 = _mm_loadl_epi64((__m128i const *)(output + stride));
const __m128i v2 = _mm_loadl_epi64((__m128i const *)(output + 2 * stride));
const __m128i v3 = _mm_loadl_epi64((__m128i const *)(output + 3 * stride));
const __m128i v4 = _mm_loadl_epi64((__m128i const *)(output + 4 * stride));
const __m128i v5 = _mm_loadl_epi64((__m128i const *)(output + 5 * stride));
const __m128i v6 = _mm_loadl_epi64((__m128i const *)(output + 6 * stride));
const __m128i v7 = _mm_loadl_epi64((__m128i const *)(output + 7 * stride));
v_256[0 ] = _mm256_inserti128_si256(_mm256_castsi128_si256(v0), v1, 1 );
v_256[1 ] = _mm256_inserti128_si256(_mm256_castsi128_si256(v2), v3, 1 );
v_256[2 ] = _mm256_inserti128_si256(_mm256_castsi128_si256(v4), v5, 1 );
v_256[3 ] = _mm256_inserti128_si256(_mm256_castsi128_si256(v6), v7, 1 );
const __m256i unpcklo0 = _mm256_unpacklo_epi8(v_256[0 ], zero);
const __m256i unpcklo1 = _mm256_unpacklo_epi8(v_256[1 ], zero);
const __m256i unpcklo2 = _mm256_unpacklo_epi8(v_256[2 ], zero);
const __m256i unpcklo3 = _mm256_unpacklo_epi8(v_256[3 ], zero);
// 00 01 10 11
const __m256i x0 = _mm256_adds_epi16(in_256[0 ], unpcklo0);
// 20 21 30 31
const __m256i x1 = _mm256_adds_epi16(in_256[1 ], unpcklo1);
// 40 41 50 51
const __m256i x2 = _mm256_adds_epi16(in_256[2 ], unpcklo2);
// 60 61 70 71
const __m256i x3 = _mm256_adds_epi16(in_256[3 ], unpcklo3);
// 00 01 20 21 10 11 30 31
const __m256i res_0123 = _mm256_packus_epi16(x0, x1);
// 40 41 60 61 50 51 70 71
const __m256i res_4567 = _mm256_packus_epi16(x2, x3);
// 00 01 20 21
const __m128i res_02 = _mm256_castsi256_si128(res_0123);
// 10 11 30 31
const __m128i res_13 = _mm256_extracti128_si256(res_0123, 1 );
// 40 41 60 61
const __m128i res_46 = _mm256_castsi256_si128(res_4567);
// 50 51 70 71
const __m128i res_57 = _mm256_extracti128_si256(res_4567, 1 );
// 00 01
_mm_storel_epi64((__m128i *)(output), res_02);
// 10 11
_mm_storel_epi64((__m128i *)(output + stride), res_13);
// 20 21
_mm_storel_epi64((__m128i *)(output + 2 * stride),
_mm_unpackhi_epi64(res_02, res_02));
// 30 31
_mm_storel_epi64((__m128i *)(output + 3 * stride),
_mm_unpackhi_epi64(res_13, res_13));
// 40 41
_mm_storel_epi64((__m128i *)(output + 4 * stride), res_46);
// 50 51
_mm_storel_epi64((__m128i *)(output + 5 * stride), res_57);
// 60 61
_mm_storel_epi64((__m128i *)(output + 6 * stride),
_mm_unpackhi_epi64(res_46, res_46));
// 70 71
_mm_storel_epi64((__m128i *)(output + 7 * stride),
_mm_unpackhi_epi64(res_57, res_57));
}
// AVX2 implementation has the advantage when combined multiple operations
// together.
static inline void lowbd_inv_txfm2d_8x8_no_identity_avx2(
const int32_t *input, uint8_t *output, int stride, TX_TYPE tx_type,
TX_SIZE tx_size, int eob) {
__m128i buf1[8 ];
const int input_stride = 8 ;
const int8_t *shift = av1_inv_txfm_shift_ls[tx_size];
assert(hitx_1d_tab[tx_type] < 2 );
assert(vitx_1d_tab[tx_type] < 2 );
const transform_1d_ssse3 row_txfm =
lowbd_txfm_all_1d_zeros_8x8_arr[hitx_1d_tab[tx_type]][eob != 1 ];
const transform_1d_ssse3 col_txfm =
lowbd_txfm_all_1d_zeros_8x8_arr[vitx_1d_tab[tx_type]][eob != 1 ];
assert(col_txfm != NULL);
assert(row_txfm != NULL);
int ud_flip, lr_flip;
get_flip_cfg(tx_type, &ud_flip, &lr_flip);
__m128i buf0[8 ];
__m128i *buf0_cur = buf0;
load_buffer_avx2(input, input_stride, buf0_cur);
row_txfm(buf0, buf0);
assert(shift[0 ] < 0 );
__m128i *_buf1 = buf1;
round_and_transpose_avx2(buf0, _buf1, shift[0 ], &lr_flip);
assert(shift[1 ] < 0 );
col_txfm(buf1, buf1);
round_shift_lowbd_write_buffer_avx2(buf1, shift[1 ], output, stride, ud_flip);
}
// AVX2 implementation of 8x8 inverse transform. Observed that coding AVX2 for
// tx_type with identity in either of the direction has no advantage.
static void lowbd_inv_txfm2d_add_8x8_avx2(const int32_t *input, uint8_t *output,
int stride, TX_TYPE tx_type,
TX_SIZE tx_size, int eob) {
switch (tx_type) {
case IDTX:
av1_lowbd_inv_txfm2d_add_idtx_ssse3(input, output, stride, tx_size);
break ;
case V_DCT:
case V_ADST:
case V_FLIPADST:
av1_lowbd_inv_txfm2d_add_h_identity_ssse3(input, output, stride, tx_type,
tx_size, eob);
break ;
case H_DCT:
case H_ADST:
case H_FLIPADST:
av1_lowbd_inv_txfm2d_add_v_identity_ssse3(input, output, stride, tx_type,
tx_size, eob);
break ;
default :
lowbd_inv_txfm2d_8x8_no_identity_avx2(input, output, stride, tx_type,
tx_size, eob);
}
}
// for 32x32,32x64,64x32,64x64,16x32,32x16,64x16,16x64
static inline void lowbd_inv_txfm2d_add_universe_avx2(
const int32_t *input, uint8_t *output, int stride, TX_TYPE tx_type,
TX_SIZE tx_size, int eob) {
(void )eob;
switch (tx_type) {
case DCT_DCT:
case ADST_DCT: // ADST in vertical, DCT in horizontal
case DCT_ADST: // DCT in vertical, ADST in horizontal
case ADST_ADST: // ADST in both directions
case FLIPADST_DCT:
case DCT_FLIPADST:
case FLIPADST_FLIPADST:
case ADST_FLIPADST:
case FLIPADST_ADST:
lowbd_inv_txfm2d_add_no_identity_avx2(input, output, stride, tx_type,
tx_size, eob);
break ;
case IDTX:
lowbd_inv_txfm2d_add_idtx_avx2(input, output, stride, tx_size, eob);
break ;
case V_DCT:
case V_ADST:
case V_FLIPADST:
lowbd_inv_txfm2d_add_h_identity_avx2(input, output, stride, tx_type,
tx_size, eob);
break ;
case H_DCT:
case H_ADST:
case H_FLIPADST:
lowbd_inv_txfm2d_add_v_identity_avx2(input, output, stride, tx_type,
tx_size, eob);
break ;
default :
av1_lowbd_inv_txfm2d_add_ssse3(input, output, stride, tx_type, tx_size,
eob);
break ;
}
}
void av1_lowbd_inv_txfm2d_add_avx2(const int32_t *input, uint8_t *output,
int stride, TX_TYPE tx_type, TX_SIZE tx_size,
int eob) {
switch (tx_size) {
case TX_4X4:
case TX_4X8:
case TX_8X4:
case TX_8X16:
case TX_16X8:
case TX_4X16:
case TX_16X4:
case TX_8X32:
case TX_32X8:
av1_lowbd_inv_txfm2d_add_ssse3(input, output, stride, tx_type, tx_size,
eob);
break ;
case TX_8X8:
lowbd_inv_txfm2d_add_8x8_avx2(input, output, stride, tx_type, tx_size,
eob);
break ;
case TX_16X16:
case TX_32X32:
case TX_64X64:
case TX_16X32:
case TX_32X16:
case TX_32X64:
case TX_64X32:
case TX_16X64:
case TX_64X16:
default :
lowbd_inv_txfm2d_add_universe_avx2(input, output, stride, tx_type,
tx_size, eob);
break ;
}
}
void av1_inv_txfm_add_avx2(const tran_low_t *dqcoeff, uint8_t *dst, int stride,
const TxfmParam *txfm_param) {
const TX_TYPE tx_type = txfm_param->tx_type;
if (!txfm_param->lossless) {
av1_lowbd_inv_txfm2d_add_avx2(dqcoeff, dst, stride, tx_type,
txfm_param->tx_size, txfm_param->eob);
} else {
av1_inv_txfm_add_c(dqcoeff, dst, stride, txfm_param);
}
}
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