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aomedia / aom / c156224a40e2b4867becc0aff958b3c7abd35904 / . / aom_dsp / x86 / inv_txfm_sse2.c
blob: be200df4c9edfa704edc6745691694933b44b16b [file] [log] [blame]
/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#include "./aom_dsp_rtcd.h"
#include "aom_dsp/x86/inv_txfm_sse2.h"
#include "aom_dsp/x86/txfm_common_sse2.h"
#define RECON_AND_STORE4X4(dest, in_x) \
{ \
__m128i d0 = _mm_cvtsi32_si128(*(const int *)(dest)); \
d0 = _mm_unpacklo_epi8(d0, zero); \
d0 = _mm_add_epi16(in_x, d0); \
d0 = _mm_packus_epi16(d0, d0); \
*(int *)(dest) = _mm_cvtsi128_si32(d0); \
}
void aom_idct4x4_16_add_sse2(const tran_low_t *input, uint8_t *dest,
int stride) {
const __m128i zero = _mm_setzero_si128();
const __m128i eight = _mm_set1_epi16(8);
const __m128i cst = _mm_setr_epi16(
(int16_t)cospi_16_64, (int16_t)cospi_16_64, (int16_t)cospi_16_64,
(int16_t)-cospi_16_64, (int16_t)cospi_24_64, (int16_t)-cospi_8_64,
(int16_t)cospi_8_64, (int16_t)cospi_24_64);
const __m128i rounding = _mm_set1_epi32(DCT_CONST_ROUNDING);
__m128i input0, input1, input2, input3;
// Rows
input0 = load_input_data(input);
input2 = load_input_data(input + 8);
// Construct i3, i1, i3, i1, i2, i0, i2, i0
input0 = _mm_shufflelo_epi16(input0, 0xd8);
input0 = _mm_shufflehi_epi16(input0, 0xd8);
input2 = _mm_shufflelo_epi16(input2, 0xd8);
input2 = _mm_shufflehi_epi16(input2, 0xd8);
input1 = _mm_unpackhi_epi32(input0, input0);
input0 = _mm_unpacklo_epi32(input0, input0);
input3 = _mm_unpackhi_epi32(input2, input2);
input2 = _mm_unpacklo_epi32(input2, input2);
// Stage 1
input0 = _mm_madd_epi16(input0, cst);
input1 = _mm_madd_epi16(input1, cst);
input2 = _mm_madd_epi16(input2, cst);
input3 = _mm_madd_epi16(input3, cst);
input0 = _mm_add_epi32(input0, rounding);
input1 = _mm_add_epi32(input1, rounding);
input2 = _mm_add_epi32(input2, rounding);
input3 = _mm_add_epi32(input3, rounding);
input0 = _mm_srai_epi32(input0, DCT_CONST_BITS);
input1 = _mm_srai_epi32(input1, DCT_CONST_BITS);
input2 = _mm_srai_epi32(input2, DCT_CONST_BITS);
input3 = _mm_srai_epi32(input3, DCT_CONST_BITS);
// Stage 2
input0 = _mm_packs_epi32(input0, input1);
input1 = _mm_packs_epi32(input2, input3);
// Transpose
input2 = _mm_unpacklo_epi16(input0, input1);
input3 = _mm_unpackhi_epi16(input0, input1);
input0 = _mm_unpacklo_epi32(input2, input3);
input1 = _mm_unpackhi_epi32(input2, input3);
// Switch column2, column 3, and then, we got:
// input2: column1, column 0; input3: column2, column 3.
input1 = _mm_shuffle_epi32(input1, 0x4e);
input2 = _mm_add_epi16(input0, input1);
input3 = _mm_sub_epi16(input0, input1);
// Columns
// Construct i3, i1, i3, i1, i2, i0, i2, i0
input0 = _mm_unpacklo_epi32(input2, input2);
input1 = _mm_unpackhi_epi32(input2, input2);
input2 = _mm_unpackhi_epi32(input3, input3);
input3 = _mm_unpacklo_epi32(input3, input3);
// Stage 1
input0 = _mm_madd_epi16(input0, cst);
input1 = _mm_madd_epi16(input1, cst);
input2 = _mm_madd_epi16(input2, cst);
input3 = _mm_madd_epi16(input3, cst);
input0 = _mm_add_epi32(input0, rounding);
input1 = _mm_add_epi32(input1, rounding);
input2 = _mm_add_epi32(input2, rounding);
input3 = _mm_add_epi32(input3, rounding);
input0 = _mm_srai_epi32(input0, DCT_CONST_BITS);
input1 = _mm_srai_epi32(input1, DCT_CONST_BITS);
input2 = _mm_srai_epi32(input2, DCT_CONST_BITS);
input3 = _mm_srai_epi32(input3, DCT_CONST_BITS);
// Stage 2
input0 = _mm_packs_epi32(input0, input2);
input1 = _mm_packs_epi32(input1, input3);
// Transpose
input2 = _mm_unpacklo_epi16(input0, input1);
input3 = _mm_unpackhi_epi16(input0, input1);
input0 = _mm_unpacklo_epi32(input2, input3);
input1 = _mm_unpackhi_epi32(input2, input3);
// Switch column2, column 3, and then, we got:
// input2: column1, column 0; input3: column2, column 3.
input1 = _mm_shuffle_epi32(input1, 0x4e);
input2 = _mm_add_epi16(input0, input1);
input3 = _mm_sub_epi16(input0, input1);
// Final round and shift
input2 = _mm_add_epi16(input2, eight);
input3 = _mm_add_epi16(input3, eight);
input2 = _mm_srai_epi16(input2, 4);
input3 = _mm_srai_epi16(input3, 4);
// Reconstruction and Store
{
__m128i d0 = _mm_cvtsi32_si128(*(const int *)(dest));
__m128i d2 = _mm_cvtsi32_si128(*(const int *)(dest + stride * 2));
d0 = _mm_unpacklo_epi32(d0,
_mm_cvtsi32_si128(*(const int *)(dest + stride)));
d2 = _mm_unpacklo_epi32(
_mm_cvtsi32_si128(*(const int *)(dest + stride * 3)), d2);
d0 = _mm_unpacklo_epi8(d0, zero);
d2 = _mm_unpacklo_epi8(d2, zero);
d0 = _mm_add_epi16(d0, input2);
d2 = _mm_add_epi16(d2, input3);
d0 = _mm_packus_epi16(d0, d2);
// store input0
*(int *)dest = _mm_cvtsi128_si32(d0);
// store input1
d0 = _mm_srli_si128(d0, 4);
*(int *)(dest + stride) = _mm_cvtsi128_si32(d0);
// store input2
d0 = _mm_srli_si128(d0, 4);
*(int *)(dest + stride * 3) = _mm_cvtsi128_si32(d0);
// store input3
d0 = _mm_srli_si128(d0, 4);
*(int *)(dest + stride * 2) = _mm_cvtsi128_si32(d0);
}
}
void aom_idct4x4_1_add_sse2(const tran_low_t *input, uint8_t *dest,
int stride) {
__m128i dc_value;
const __m128i zero = _mm_setzero_si128();
int a;
a = (int)dct_const_round_shift(input[0] * cospi_16_64);
a = (int)dct_const_round_shift(a * cospi_16_64);
a = ROUND_POWER_OF_TWO(a, 4);
if (a == 0) return;
dc_value = _mm_set1_epi16(a);
RECON_AND_STORE4X4(dest + 0 * stride, dc_value);
RECON_AND_STORE4X4(dest + 1 * stride, dc_value);
RECON_AND_STORE4X4(dest + 2 * stride, dc_value);
RECON_AND_STORE4X4(dest + 3 * stride, dc_value);
}
void aom_idct4_sse2(__m128i *in) {
const __m128i k__cospi_p16_p16 = pair_set_epi16(cospi_16_64, cospi_16_64);
const __m128i k__cospi_p16_m16 = pair_set_epi16(cospi_16_64, -cospi_16_64);
const __m128i k__cospi_p24_m08 = pair_set_epi16(cospi_24_64, -cospi_8_64);
const __m128i k__cospi_p08_p24 = pair_set_epi16(cospi_8_64, cospi_24_64);
const __m128i k__DCT_CONST_ROUNDING = _mm_set1_epi32(DCT_CONST_ROUNDING);
__m128i u[8], v[8];
array_transpose_4x4(in);
// stage 1
u[0] = _mm_unpacklo_epi16(in[0], in[1]);
u[1] = _mm_unpackhi_epi16(in[0], in[1]);
v[0] = _mm_madd_epi16(u[0], k__cospi_p16_p16);
v[1] = _mm_madd_epi16(u[0], k__cospi_p16_m16);
v[2] = _mm_madd_epi16(u[1], k__cospi_p24_m08);
v[3] = _mm_madd_epi16(u[1], k__cospi_p08_p24);
u[0] = _mm_add_epi32(v[0], k__DCT_CONST_ROUNDING);
u[1] = _mm_add_epi32(v[1], k__DCT_CONST_ROUNDING);
u[2] = _mm_add_epi32(v[2], k__DCT_CONST_ROUNDING);
u[3] = _mm_add_epi32(v[3], k__DCT_CONST_ROUNDING);
v[0] = _mm_srai_epi32(u[0], DCT_CONST_BITS);
v[1] = _mm_srai_epi32(u[1], DCT_CONST_BITS);
v[2] = _mm_srai_epi32(u[2], DCT_CONST_BITS);
v[3] = _mm_srai_epi32(u[3], DCT_CONST_BITS);
u[0] = _mm_packs_epi32(v[0], v[1]);
u[1] = _mm_packs_epi32(v[3], v[2]);
// stage 2
in[0] = _mm_add_epi16(u[0], u[1]);
in[1] = _mm_sub_epi16(u[0], u[1]);
in[1] = _mm_shuffle_epi32(in[1], 0x4E);
}
void aom_iadst4_sse2(__m128i *in) {
const __m128i k__sinpi_p01_p04 = pair_set_epi16(sinpi_1_9, sinpi_4_9);
const __m128i k__sinpi_p03_p02 = pair_set_epi16(sinpi_3_9, sinpi_2_9);
const __m128i k__sinpi_p02_m01 = pair_set_epi16(sinpi_2_9, -sinpi_1_9);
const __m128i k__sinpi_p03_m04 = pair_set_epi16(sinpi_3_9, -sinpi_4_9);
const __m128i k__sinpi_p03_p03 = _mm_set1_epi16((int16_t)sinpi_3_9);
const __m128i kZero = _mm_set1_epi16(0);
const __m128i k__DCT_CONST_ROUNDING = _mm_set1_epi32(DCT_CONST_ROUNDING);
__m128i u[8], v[8], in7;
array_transpose_4x4(in);
in7 = _mm_srli_si128(in[1], 8);
in7 = _mm_add_epi16(in7, in[0]);
in7 = _mm_sub_epi16(in7, in[1]);
u[0] = _mm_unpacklo_epi16(in[0], in[1]);
u[1] = _mm_unpackhi_epi16(in[0], in[1]);
u[2] = _mm_unpacklo_epi16(in7, kZero);
u[3] = _mm_unpackhi_epi16(in[0], kZero);
v[0] = _mm_madd_epi16(u[0], k__sinpi_p01_p04); // s0 + s3
v[1] = _mm_madd_epi16(u[1], k__sinpi_p03_p02); // s2 + s5
v[2] = _mm_madd_epi16(u[2], k__sinpi_p03_p03); // x2
v[3] = _mm_madd_epi16(u[0], k__sinpi_p02_m01); // s1 - s4
v[4] = _mm_madd_epi16(u[1], k__sinpi_p03_m04); // s2 - s6
v[5] = _mm_madd_epi16(u[3], k__sinpi_p03_p03); // s2
u[0] = _mm_add_epi32(v[0], v[1]);
u[1] = _mm_add_epi32(v[3], v[4]);
u[2] = v[2];
u[3] = _mm_add_epi32(u[0], u[1]);
u[4] = _mm_slli_epi32(v[5], 2);
u[5] = _mm_add_epi32(u[3], v[5]);
u[6] = _mm_sub_epi32(u[5], u[4]);
v[0] = _mm_add_epi32(u[0], k__DCT_CONST_ROUNDING);
v[1] = _mm_add_epi32(u[1], k__DCT_CONST_ROUNDING);
v[2] = _mm_add_epi32(u[2], k__DCT_CONST_ROUNDING);
v[3] = _mm_add_epi32(u[6], k__DCT_CONST_ROUNDING);
u[0] = _mm_srai_epi32(v[0], DCT_CONST_BITS);
u[1] = _mm_srai_epi32(v[1], DCT_CONST_BITS);
u[2] = _mm_srai_epi32(v[2], DCT_CONST_BITS);
u[3] = _mm_srai_epi32(v[3], DCT_CONST_BITS);
in[0] = _mm_packs_epi32(u[0], u[1]);
in[1] = _mm_packs_epi32(u[2], u[3]);
}
// Define Macro for multiplying elements by constants and adding them together.
#define MULTIPLICATION_AND_ADD(lo_0, hi_0, lo_1, hi_1, cst0, cst1, cst2, cst3, \
res0, res1, res2, res3) \
{ \
tmp0 = _mm_madd_epi16(lo_0, cst0); \
tmp1 = _mm_madd_epi16(hi_0, cst0); \
tmp2 = _mm_madd_epi16(lo_0, cst1); \
tmp3 = _mm_madd_epi16(hi_0, cst1); \
tmp4 = _mm_madd_epi16(lo_1, cst2); \
tmp5 = _mm_madd_epi16(hi_1, cst2); \
tmp6 = _mm_madd_epi16(lo_1, cst3); \
tmp7 = _mm_madd_epi16(hi_1, cst3); \
\
tmp0 = _mm_add_epi32(tmp0, rounding); \
tmp1 = _mm_add_epi32(tmp1, rounding); \
tmp2 = _mm_add_epi32(tmp2, rounding); \
tmp3 = _mm_add_epi32(tmp3, rounding); \
tmp4 = _mm_add_epi32(tmp4, rounding); \
tmp5 = _mm_add_epi32(tmp5, rounding); \
tmp6 = _mm_add_epi32(tmp6, rounding); \
tmp7 = _mm_add_epi32(tmp7, rounding); \
\
tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS); \
tmp1 = _mm_srai_epi32(tmp1, DCT_CONST_BITS); \
tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS); \
tmp3 = _mm_srai_epi32(tmp3, DCT_CONST_BITS); \
tmp4 = _mm_srai_epi32(tmp4, DCT_CONST_BITS); \
tmp5 = _mm_srai_epi32(tmp5, DCT_CONST_BITS); \
tmp6 = _mm_srai_epi32(tmp6, DCT_CONST_BITS); \
tmp7 = _mm_srai_epi32(tmp7, DCT_CONST_BITS); \
\
res0 = _mm_packs_epi32(tmp0, tmp1); \
res1 = _mm_packs_epi32(tmp2, tmp3); \
res2 = _mm_packs_epi32(tmp4, tmp5); \
res3 = _mm_packs_epi32(tmp6, tmp7); \
}
#define MULTIPLICATION_AND_ADD_2(lo_0, hi_0, cst0, cst1, res0, res1) \
{ \
tmp0 = _mm_madd_epi16(lo_0, cst0); \
tmp1 = _mm_madd_epi16(hi_0, cst0); \
tmp2 = _mm_madd_epi16(lo_0, cst1); \
tmp3 = _mm_madd_epi16(hi_0, cst1); \
\
tmp0 = _mm_add_epi32(tmp0, rounding); \
tmp1 = _mm_add_epi32(tmp1, rounding); \
tmp2 = _mm_add_epi32(tmp2, rounding); \
tmp3 = _mm_add_epi32(tmp3, rounding); \
\
tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS); \
tmp1 = _mm_srai_epi32(tmp1, DCT_CONST_BITS); \
tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS); \
tmp3 = _mm_srai_epi32(tmp3, DCT_CONST_BITS); \
\
res0 = _mm_packs_epi32(tmp0, tmp1); \
res1 = _mm_packs_epi32(tmp2, tmp3); \
}
#define IDCT8(in0, in1, in2, in3, in4, in5, in6, in7, out0, out1, out2, out3, \
out4, out5, out6, out7) \
{ \
/* Stage1 */ \
{ \
const __m128i lo_17 = _mm_unpacklo_epi16(in1, in7); \
const __m128i hi_17 = _mm_unpackhi_epi16(in1, in7); \
const __m128i lo_35 = _mm_unpacklo_epi16(in3, in5); \
const __m128i hi_35 = _mm_unpackhi_epi16(in3, in5); \
\
MULTIPLICATION_AND_ADD(lo_17, hi_17, lo_35, hi_35, stg1_0, stg1_1, \
stg1_2, stg1_3, stp1_4, stp1_7, stp1_5, stp1_6) \
} \
\
/* Stage2 */ \
{ \
const __m128i lo_04 = _mm_unpacklo_epi16(in0, in4); \
const __m128i hi_04 = _mm_unpackhi_epi16(in0, in4); \
const __m128i lo_26 = _mm_unpacklo_epi16(in2, in6); \
const __m128i hi_26 = _mm_unpackhi_epi16(in2, in6); \
\
MULTIPLICATION_AND_ADD(lo_04, hi_04, lo_26, hi_26, stg2_0, stg2_1, \
stg2_2, stg2_3, stp2_0, stp2_1, stp2_2, stp2_3) \
\
stp2_4 = _mm_adds_epi16(stp1_4, stp1_5); \
stp2_5 = _mm_subs_epi16(stp1_4, stp1_5); \
stp2_6 = _mm_subs_epi16(stp1_7, stp1_6); \
stp2_7 = _mm_adds_epi16(stp1_7, stp1_6); \
} \
\
/* Stage3 */ \
{ \
const __m128i lo_56 = _mm_unpacklo_epi16(stp2_6, stp2_5); \
const __m128i hi_56 = _mm_unpackhi_epi16(stp2_6, stp2_5); \
\
stp1_0 = _mm_adds_epi16(stp2_0, stp2_3); \
stp1_1 = _mm_adds_epi16(stp2_1, stp2_2); \
stp1_2 = _mm_subs_epi16(stp2_1, stp2_2); \
stp1_3 = _mm_subs_epi16(stp2_0, stp2_3); \
\
tmp0 = _mm_madd_epi16(lo_56, stg2_1); \
tmp1 = _mm_madd_epi16(hi_56, stg2_1); \
tmp2 = _mm_madd_epi16(lo_56, stg2_0); \
tmp3 = _mm_madd_epi16(hi_56, stg2_0); \
\
tmp0 = _mm_add_epi32(tmp0, rounding); \
tmp1 = _mm_add_epi32(tmp1, rounding); \
tmp2 = _mm_add_epi32(tmp2, rounding); \
tmp3 = _mm_add_epi32(tmp3, rounding); \
\
tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS); \
tmp1 = _mm_srai_epi32(tmp1, DCT_CONST_BITS); \
tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS); \
tmp3 = _mm_srai_epi32(tmp3, DCT_CONST_BITS); \
\
stp1_5 = _mm_packs_epi32(tmp0, tmp1); \
stp1_6 = _mm_packs_epi32(tmp2, tmp3); \
} \
\
/* Stage4 */ \
out0 = _mm_adds_epi16(stp1_0, stp2_7); \
out1 = _mm_adds_epi16(stp1_1, stp1_6); \
out2 = _mm_adds_epi16(stp1_2, stp1_5); \
out3 = _mm_adds_epi16(stp1_3, stp2_4); \
out4 = _mm_subs_epi16(stp1_3, stp2_4); \
out5 = _mm_subs_epi16(stp1_2, stp1_5); \
out6 = _mm_subs_epi16(stp1_1, stp1_6); \
out7 = _mm_subs_epi16(stp1_0, stp2_7); \
}
void aom_idct8x8_64_add_sse2(const tran_low_t *input, uint8_t *dest,
int stride) {
const __m128i zero = _mm_setzero_si128();
const __m128i rounding = _mm_set1_epi32(DCT_CONST_ROUNDING);
const __m128i final_rounding = _mm_set1_epi16(1 << 4);
const __m128i stg1_0 = pair_set_epi16(cospi_28_64, -cospi_4_64);
const __m128i stg1_1 = pair_set_epi16(cospi_4_64, cospi_28_64);
const __m128i stg1_2 = pair_set_epi16(-cospi_20_64, cospi_12_64);
const __m128i stg1_3 = pair_set_epi16(cospi_12_64, cospi_20_64);
const __m128i stg2_0 = pair_set_epi16(cospi_16_64, cospi_16_64);
const __m128i stg2_1 = pair_set_epi16(cospi_16_64, -cospi_16_64);
const __m128i stg2_2 = pair_set_epi16(cospi_24_64, -cospi_8_64);
const __m128i stg2_3 = pair_set_epi16(cospi_8_64, cospi_24_64);
__m128i in0, in1, in2, in3, in4, in5, in6, in7;
__m128i stp1_0, stp1_1, stp1_2, stp1_3, stp1_4, stp1_5, stp1_6, stp1_7;
__m128i stp2_0, stp2_1, stp2_2, stp2_3, stp2_4, stp2_5, stp2_6, stp2_7;
__m128i tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
int i;
// Load input data.
in0 = load_input_data(input);
in1 = load_input_data(input + 8 * 1);
in2 = load_input_data(input + 8 * 2);
in3 = load_input_data(input + 8 * 3);
in4 = load_input_data(input + 8 * 4);
in5 = load_input_data(input + 8 * 5);
in6 = load_input_data(input + 8 * 6);
in7 = load_input_data(input + 8 * 7);
// 2-D
for (i = 0; i < 2; i++) {
// 8x8 Transpose is copied from aom_fdct8x8_sse2()
TRANSPOSE_8X8(in0, in1, in2, in3, in4, in5, in6, in7, in0, in1, in2, in3,
in4, in5, in6, in7);
// 4-stage 1D idct8x8
IDCT8(in0, in1, in2, in3, in4, in5, in6, in7, in0, in1, in2, in3, in4, in5,
in6, in7);
}
// Final rounding and shift
in0 = _mm_adds_epi16(in0, final_rounding);
in1 = _mm_adds_epi16(in1, final_rounding);
in2 = _mm_adds_epi16(in2, final_rounding);
in3 = _mm_adds_epi16(in3, final_rounding);
in4 = _mm_adds_epi16(in4, final_rounding);
in5 = _mm_adds_epi16(in5, final_rounding);
in6 = _mm_adds_epi16(in6, final_rounding);
in7 = _mm_adds_epi16(in7, final_rounding);
in0 = _mm_srai_epi16(in0, 5);
in1 = _mm_srai_epi16(in1, 5);
in2 = _mm_srai_epi16(in2, 5);
in3 = _mm_srai_epi16(in3, 5);
in4 = _mm_srai_epi16(in4, 5);
in5 = _mm_srai_epi16(in5, 5);
in6 = _mm_srai_epi16(in6, 5);
in7 = _mm_srai_epi16(in7, 5);
RECON_AND_STORE(dest + 0 * stride, in0);
RECON_AND_STORE(dest + 1 * stride, in1);
RECON_AND_STORE(dest + 2 * stride, in2);
RECON_AND_STORE(dest + 3 * stride, in3);
RECON_AND_STORE(dest + 4 * stride, in4);
RECON_AND_STORE(dest + 5 * stride, in5);
RECON_AND_STORE(dest + 6 * stride, in6);
RECON_AND_STORE(dest + 7 * stride, in7);
}
void aom_idct8x8_1_add_sse2(const tran_low_t *input, uint8_t *dest,
int stride) {
__m128i dc_value;
const __m128i zero = _mm_setzero_si128();
int a;
a = (int)dct_const_round_shift(input[0] * cospi_16_64);
a = (int)dct_const_round_shift(a * cospi_16_64);
a = ROUND_POWER_OF_TWO(a, 5);
if (a == 0) return;
dc_value = _mm_set1_epi16(a);
RECON_AND_STORE(dest + 0 * stride, dc_value);
RECON_AND_STORE(dest + 1 * stride, dc_value);
RECON_AND_STORE(dest + 2 * stride, dc_value);
RECON_AND_STORE(dest + 3 * stride, dc_value);
RECON_AND_STORE(dest + 4 * stride, dc_value);
RECON_AND_STORE(dest + 5 * stride, dc_value);
RECON_AND_STORE(dest + 6 * stride, dc_value);
RECON_AND_STORE(dest + 7 * stride, dc_value);
}
void aom_idct8_sse2(__m128i *in) {
const __m128i rounding = _mm_set1_epi32(DCT_CONST_ROUNDING);
const __m128i stg1_0 = pair_set_epi16(cospi_28_64, -cospi_4_64);
const __m128i stg1_1 = pair_set_epi16(cospi_4_64, cospi_28_64);
const __m128i stg1_2 = pair_set_epi16(-cospi_20_64, cospi_12_64);
const __m128i stg1_3 = pair_set_epi16(cospi_12_64, cospi_20_64);
const __m128i stg2_0 = pair_set_epi16(cospi_16_64, cospi_16_64);
const __m128i stg2_1 = pair_set_epi16(cospi_16_64, -cospi_16_64);
const __m128i stg2_2 = pair_set_epi16(cospi_24_64, -cospi_8_64);
const __m128i stg2_3 = pair_set_epi16(cospi_8_64, cospi_24_64);
__m128i in0, in1, in2, in3, in4, in5, in6, in7;
__m128i stp1_0, stp1_1, stp1_2, stp1_3, stp1_4, stp1_5, stp1_6, stp1_7;
__m128i stp2_0, stp2_1, stp2_2, stp2_3, stp2_4, stp2_5, stp2_6, stp2_7;
__m128i tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
// 8x8 Transpose is copied from aom_fdct8x8_sse2()
TRANSPOSE_8X8(in[0], in[1], in[2], in[3], in[4], in[5], in[6], in[7], in0,
in1, in2, in3, in4, in5, in6, in7);
// 4-stage 1D idct8x8
IDCT8(in0, in1, in2, in3, in4, in5, in6, in7, in[0], in[1], in[2], in[3],
in[4], in[5], in[6], in[7]);
}
void aom_iadst8_sse2(__m128i *in) {
const __m128i k__cospi_p02_p30 = pair_set_epi16(cospi_2_64, cospi_30_64);
const __m128i k__cospi_p30_m02 = pair_set_epi16(cospi_30_64, -cospi_2_64);
const __m128i k__cospi_p10_p22 = pair_set_epi16(cospi_10_64, cospi_22_64);
const __m128i k__cospi_p22_m10 = pair_set_epi16(cospi_22_64, -cospi_10_64);
const __m128i k__cospi_p18_p14 = pair_set_epi16(cospi_18_64, cospi_14_64);
const __m128i k__cospi_p14_m18 = pair_set_epi16(cospi_14_64, -cospi_18_64);
const __m128i k__cospi_p26_p06 = pair_set_epi16(cospi_26_64, cospi_6_64);
const __m128i k__cospi_p06_m26 = pair_set_epi16(cospi_6_64, -cospi_26_64);
const __m128i k__cospi_p08_p24 = pair_set_epi16(cospi_8_64, cospi_24_64);
const __m128i k__cospi_p24_m08 = pair_set_epi16(cospi_24_64, -cospi_8_64);
const __m128i k__cospi_m24_p08 = pair_set_epi16(-cospi_24_64, cospi_8_64);
const __m128i k__cospi_p16_m16 = pair_set_epi16(cospi_16_64, -cospi_16_64);
const __m128i k__cospi_p16_p16 = _mm_set1_epi16((int16_t)cospi_16_64);
const __m128i k__const_0 = _mm_set1_epi16(0);
const __m128i k__DCT_CONST_ROUNDING = _mm_set1_epi32(DCT_CONST_ROUNDING);
__m128i u0, u1, u2, u3, u4, u5, u6, u7, u8, u9, u10, u11, u12, u13, u14, u15;
__m128i v0, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15;
__m128i w0, w1, w2, w3, w4, w5, w6, w7, w8, w9, w10, w11, w12, w13, w14, w15;
__m128i s0, s1, s2, s3, s4, s5, s6, s7;
__m128i in0, in1, in2, in3, in4, in5, in6, in7;
// transpose
array_transpose_8x8(in, in);
// properly aligned for butterfly input
in0 = in[7];
in1 = in[0];
in2 = in[5];
in3 = in[2];
in4 = in[3];
in5 = in[4];
in6 = in[1];
in7 = in[6];
// column transformation
// stage 1
// interleave and multiply/add into 32-bit integer
s0 = _mm_unpacklo_epi16(in0, in1);
s1 = _mm_unpackhi_epi16(in0, in1);
s2 = _mm_unpacklo_epi16(in2, in3);
s3 = _mm_unpackhi_epi16(in2, in3);
s4 = _mm_unpacklo_epi16(in4, in5);
s5 = _mm_unpackhi_epi16(in4, in5);
s6 = _mm_unpacklo_epi16(in6, in7);
s7 = _mm_unpackhi_epi16(in6, in7);
u0 = _mm_madd_epi16(s0, k__cospi_p02_p30);
u1 = _mm_madd_epi16(s1, k__cospi_p02_p30);
u2 = _mm_madd_epi16(s0, k__cospi_p30_m02);
u3 = _mm_madd_epi16(s1, k__cospi_p30_m02);
u4 = _mm_madd_epi16(s2, k__cospi_p10_p22);
u5 = _mm_madd_epi16(s3, k__cospi_p10_p22);
u6 = _mm_madd_epi16(s2, k__cospi_p22_m10);
u7 = _mm_madd_epi16(s3, k__cospi_p22_m10);
u8 = _mm_madd_epi16(s4, k__cospi_p18_p14);
u9 = _mm_madd_epi16(s5, k__cospi_p18_p14);
u10 = _mm_madd_epi16(s4, k__cospi_p14_m18);
u11 = _mm_madd_epi16(s5, k__cospi_p14_m18);
u12 = _mm_madd_epi16(s6, k__cospi_p26_p06);
u13 = _mm_madd_epi16(s7, k__cospi_p26_p06);
u14 = _mm_madd_epi16(s6, k__cospi_p06_m26);
u15 = _mm_madd_epi16(s7, k__cospi_p06_m26);
// addition
w0 = _mm_add_epi32(u0, u8);
w1 = _mm_add_epi32(u1, u9);
w2 = _mm_add_epi32(u2, u10);
w3 = _mm_add_epi32(u3, u11);
w4 = _mm_add_epi32(u4, u12);
w5 = _mm_add_epi32(u5, u13);
w6 = _mm_add_epi32(u6, u14);
w7 = _mm_add_epi32(u7, u15);
w8 = _mm_sub_epi32(u0, u8);
w9 = _mm_sub_epi32(u1, u9);
w10 = _mm_sub_epi32(u2, u10);
w11 = _mm_sub_epi32(u3, u11);
w12 = _mm_sub_epi32(u4, u12);
w13 = _mm_sub_epi32(u5, u13);
w14 = _mm_sub_epi32(u6, u14);
w15 = _mm_sub_epi32(u7, u15);
// shift and rounding
v0 = _mm_add_epi32(w0, k__DCT_CONST_ROUNDING);
v1 = _mm_add_epi32(w1, k__DCT_CONST_ROUNDING);
v2 = _mm_add_epi32(w2, k__DCT_CONST_ROUNDING);
v3 = _mm_add_epi32(w3, k__DCT_CONST_ROUNDING);
v4 = _mm_add_epi32(w4, k__DCT_CONST_ROUNDING);
v5 = _mm_add_epi32(w5, k__DCT_CONST_ROUNDING);
v6 = _mm_add_epi32(w6, k__DCT_CONST_ROUNDING);
v7 = _mm_add_epi32(w7, k__DCT_CONST_ROUNDING);
v8 = _mm_add_epi32(w8, k__DCT_CONST_ROUNDING);
v9 = _mm_add_epi32(w9, k__DCT_CONST_ROUNDING);
v10 = _mm_add_epi32(w10, k__DCT_CONST_ROUNDING);
v11 = _mm_add_epi32(w11, k__DCT_CONST_ROUNDING);
v12 = _mm_add_epi32(w12, k__DCT_CONST_ROUNDING);
v13 = _mm_add_epi32(w13, k__DCT_CONST_ROUNDING);
v14 = _mm_add_epi32(w14, k__DCT_CONST_ROUNDING);
v15 = _mm_add_epi32(w15, k__DCT_CONST_ROUNDING);
u0 = _mm_srai_epi32(v0, DCT_CONST_BITS);
u1 = _mm_srai_epi32(v1, DCT_CONST_BITS);
u2 = _mm_srai_epi32(v2, DCT_CONST_BITS);
u3 = _mm_srai_epi32(v3, DCT_CONST_BITS);
u4 = _mm_srai_epi32(v4, DCT_CONST_BITS);
u5 = _mm_srai_epi32(v5, DCT_CONST_BITS);
u6 = _mm_srai_epi32(v6, DCT_CONST_BITS);
u7 = _mm_srai_epi32(v7, DCT_CONST_BITS);
u8 = _mm_srai_epi32(v8, DCT_CONST_BITS);
u9 = _mm_srai_epi32(v9, DCT_CONST_BITS);
u10 = _mm_srai_epi32(v10, DCT_CONST_BITS);
u11 = _mm_srai_epi32(v11, DCT_CONST_BITS);
u12 = _mm_srai_epi32(v12, DCT_CONST_BITS);
u13 = _mm_srai_epi32(v13, DCT_CONST_BITS);
u14 = _mm_srai_epi32(v14, DCT_CONST_BITS);
u15 = _mm_srai_epi32(v15, DCT_CONST_BITS);
// back to 16-bit and pack 8 integers into __m128i
in[0] = _mm_packs_epi32(u0, u1);
in[1] = _mm_packs_epi32(u2, u3);
in[2] = _mm_packs_epi32(u4, u5);
in[3] = _mm_packs_epi32(u6, u7);
in[4] = _mm_packs_epi32(u8, u9);
in[5] = _mm_packs_epi32(u10, u11);
in[6] = _mm_packs_epi32(u12, u13);
in[7] = _mm_packs_epi32(u14, u15);
// stage 2
s0 = _mm_add_epi16(in[0], in[2]);
s1 = _mm_add_epi16(in[1], in[3]);
s2 = _mm_sub_epi16(in[0], in[2]);
s3 = _mm_sub_epi16(in[1], in[3]);
u0 = _mm_unpacklo_epi16(in[4], in[5]);
u1 = _mm_unpackhi_epi16(in[4], in[5]);
u2 = _mm_unpacklo_epi16(in[6], in[7]);
u3 = _mm_unpackhi_epi16(in[6], in[7]);
v0 = _mm_madd_epi16(u0, k__cospi_p08_p24);
v1 = _mm_madd_epi16(u1, k__cospi_p08_p24);
v2 = _mm_madd_epi16(u0, k__cospi_p24_m08);
v3 = _mm_madd_epi16(u1, k__cospi_p24_m08);
v4 = _mm_madd_epi16(u2, k__cospi_m24_p08);
v5 = _mm_madd_epi16(u3, k__cospi_m24_p08);
v6 = _mm_madd_epi16(u2, k__cospi_p08_p24);
v7 = _mm_madd_epi16(u3, k__cospi_p08_p24);
w0 = _mm_add_epi32(v0, v4);
w1 = _mm_add_epi32(v1, v5);
w2 = _mm_add_epi32(v2, v6);
w3 = _mm_add_epi32(v3, v7);
w4 = _mm_sub_epi32(v0, v4);
w5 = _mm_sub_epi32(v1, v5);
w6 = _mm_sub_epi32(v2, v6);
w7 = _mm_sub_epi32(v3, v7);
v0 = _mm_add_epi32(w0, k__DCT_CONST_ROUNDING);
v1 = _mm_add_epi32(w1, k__DCT_CONST_ROUNDING);
v2 = _mm_add_epi32(w2, k__DCT_CONST_ROUNDING);
v3 = _mm_add_epi32(w3, k__DCT_CONST_ROUNDING);
v4 = _mm_add_epi32(w4, k__DCT_CONST_ROUNDING);
v5 = _mm_add_epi32(w5, k__DCT_CONST_ROUNDING);
v6 = _mm_add_epi32(w6, k__DCT_CONST_ROUNDING);
v7 = _mm_add_epi32(w7, k__DCT_CONST_ROUNDING);
u0 = _mm_srai_epi32(v0, DCT_CONST_BITS);
u1 = _mm_srai_epi32(v1, DCT_CONST_BITS);
u2 = _mm_srai_epi32(v2, DCT_CONST_BITS);
u3 = _mm_srai_epi32(v3, DCT_CONST_BITS);
u4 = _mm_srai_epi32(v4, DCT_CONST_BITS);
u5 = _mm_srai_epi32(v5, DCT_CONST_BITS);
u6 = _mm_srai_epi32(v6, DCT_CONST_BITS);
u7 = _mm_srai_epi32(v7, DCT_CONST_BITS);
// back to 16-bit intergers
s4 = _mm_packs_epi32(u0, u1);
s5 = _mm_packs_epi32(u2, u3);
s6 = _mm_packs_epi32(u4, u5);
s7 = _mm_packs_epi32(u6, u7);
// stage 3
u0 = _mm_unpacklo_epi16(s2, s3);
u1 = _mm_unpackhi_epi16(s2, s3);
u2 = _mm_unpacklo_epi16(s6, s7);
u3 = _mm_unpackhi_epi16(s6, s7);
v0 = _mm_madd_epi16(u0, k__cospi_p16_p16);
v1 = _mm_madd_epi16(u1, k__cospi_p16_p16);
v2 = _mm_madd_epi16(u0, k__cospi_p16_m16);
v3 = _mm_madd_epi16(u1, k__cospi_p16_m16);
v4 = _mm_madd_epi16(u2, k__cospi_p16_p16);
v5 = _mm_madd_epi16(u3, k__cospi_p16_p16);
v6 = _mm_madd_epi16(u2, k__cospi_p16_m16);
v7 = _mm_madd_epi16(u3, k__cospi_p16_m16);
u0 = _mm_add_epi32(v0, k__DCT_CONST_ROUNDING);
u1 = _mm_add_epi32(v1, k__DCT_CONST_ROUNDING);
u2 = _mm_add_epi32(v2, k__DCT_CONST_ROUNDING);
u3 = _mm_add_epi32(v3, k__DCT_CONST_ROUNDING);
u4 = _mm_add_epi32(v4, k__DCT_CONST_ROUNDING);
u5 = _mm_add_epi32(v5, k__DCT_CONST_ROUNDING);
u6 = _mm_add_epi32(v6, k__DCT_CONST_ROUNDING);
u7 = _mm_add_epi32(v7, k__DCT_CONST_ROUNDING);
v0 = _mm_srai_epi32(u0, DCT_CONST_BITS);
v1 = _mm_srai_epi32(u1, DCT_CONST_BITS);
v2 = _mm_srai_epi32(u2, DCT_CONST_BITS);
v3 = _mm_srai_epi32(u3, DCT_CONST_BITS);
v4 = _mm_srai_epi32(u4, DCT_CONST_BITS);
v5 = _mm_srai_epi32(u5, DCT_CONST_BITS);
v6 = _mm_srai_epi32(u6, DCT_CONST_BITS);
v7 = _mm_srai_epi32(u7, DCT_CONST_BITS);
s2 = _mm_packs_epi32(v0, v1);
s3 = _mm_packs_epi32(v2, v3);
s6 = _mm_packs_epi32(v4, v5);
s7 = _mm_packs_epi32(v6, v7);
in[0] = s0;
in[1] = _mm_sub_epi16(k__const_0, s4);
in[2] = s6;
in[3] = _mm_sub_epi16(k__const_0, s2);
in[4] = s3;
in[5] = _mm_sub_epi16(k__const_0, s7);
in[6] = s5;
in[7] = _mm_sub_epi16(k__const_0, s1);
}
void aom_idct8x8_12_add_sse2(const tran_low_t *input, uint8_t *dest,
int stride) {
const __m128i zero = _mm_setzero_si128();
const __m128i rounding = _mm_set1_epi32(DCT_CONST_ROUNDING);
const __m128i final_rounding = _mm_set1_epi16(1 << 4);
const __m128i stg1_0 = pair_set_epi16(cospi_28_64, -cospi_4_64);
const __m128i stg1_1 = pair_set_epi16(cospi_4_64, cospi_28_64);
const __m128i stg1_2 = pair_set_epi16(-cospi_20_64, cospi_12_64);
const __m128i stg1_3 = pair_set_epi16(cospi_12_64, cospi_20_64);
const __m128i stg2_0 = pair_set_epi16(cospi_16_64, cospi_16_64);
const __m128i stg2_1 = pair_set_epi16(cospi_16_64, -cospi_16_64);
const __m128i stg2_2 = pair_set_epi16(cospi_24_64, -cospi_8_64);
const __m128i stg2_3 = pair_set_epi16(cospi_8_64, cospi_24_64);
const __m128i stg3_0 = pair_set_epi16(-cospi_16_64, cospi_16_64);
__m128i in0, in1, in2, in3, in4, in5, in6, in7;
__m128i stp1_0, stp1_1, stp1_2, stp1_3, stp1_4, stp1_5, stp1_6, stp1_7;
__m128i stp2_0, stp2_1, stp2_2, stp2_3, stp2_4, stp2_5, stp2_6, stp2_7;
__m128i tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
// Rows. Load 4-row input data.
in0 = load_input_data(input);
in1 = load_input_data(input + 8 * 1);
in2 = load_input_data(input + 8 * 2);
in3 = load_input_data(input + 8 * 3);
// 8x4 Transpose
TRANSPOSE_8X8_10(in0, in1, in2, in3, in0, in1);
// Stage1
{
const __m128i lo_17 = _mm_unpackhi_epi16(in0, zero);
const __m128i lo_35 = _mm_unpackhi_epi16(in1, zero);
tmp0 = _mm_madd_epi16(lo_17, stg1_0);
tmp2 = _mm_madd_epi16(lo_17, stg1_1);
tmp4 = _mm_madd_epi16(lo_35, stg1_2);
tmp6 = _mm_madd_epi16(lo_35, stg1_3);
tmp0 = _mm_add_epi32(tmp0, rounding);
tmp2 = _mm_add_epi32(tmp2, rounding);
tmp4 = _mm_add_epi32(tmp4, rounding);
tmp6 = _mm_add_epi32(tmp6, rounding);
tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS);
tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS);
tmp4 = _mm_srai_epi32(tmp4, DCT_CONST_BITS);
tmp6 = _mm_srai_epi32(tmp6, DCT_CONST_BITS);
stp1_4 = _mm_packs_epi32(tmp0, tmp2);
stp1_5 = _mm_packs_epi32(tmp4, tmp6);
}
// Stage2
{
const __m128i lo_04 = _mm_unpacklo_epi16(in0, zero);
const __m128i lo_26 = _mm_unpacklo_epi16(in1, zero);
tmp0 = _mm_madd_epi16(lo_04, stg2_0);
tmp2 = _mm_madd_epi16(lo_04, stg2_1);
tmp4 = _mm_madd_epi16(lo_26, stg2_2);
tmp6 = _mm_madd_epi16(lo_26, stg2_3);
tmp0 = _mm_add_epi32(tmp0, rounding);
tmp2 = _mm_add_epi32(tmp2, rounding);
tmp4 = _mm_add_epi32(tmp4, rounding);
tmp6 = _mm_add_epi32(tmp6, rounding);
tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS);
tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS);
tmp4 = _mm_srai_epi32(tmp4, DCT_CONST_BITS);
tmp6 = _mm_srai_epi32(tmp6, DCT_CONST_BITS);
stp2_0 = _mm_packs_epi32(tmp0, tmp2);
stp2_2 = _mm_packs_epi32(tmp6, tmp4);
tmp0 = _mm_adds_epi16(stp1_4, stp1_5);
tmp1 = _mm_subs_epi16(stp1_4, stp1_5);
stp2_4 = tmp0;
stp2_5 = _mm_unpacklo_epi64(tmp1, zero);
stp2_6 = _mm_unpackhi_epi64(tmp1, zero);
}
// Stage3
{
const __m128i lo_56 = _mm_unpacklo_epi16(stp2_5, stp2_6);
tmp4 = _mm_adds_epi16(stp2_0, stp2_2);
tmp6 = _mm_subs_epi16(stp2_0, stp2_2);
stp1_2 = _mm_unpackhi_epi64(tmp6, tmp4);
stp1_3 = _mm_unpacklo_epi64(tmp6, tmp4);
tmp0 = _mm_madd_epi16(lo_56, stg3_0);
tmp2 = _mm_madd_epi16(lo_56, stg2_0); // stg3_1 = stg2_0
tmp0 = _mm_add_epi32(tmp0, rounding);
tmp2 = _mm_add_epi32(tmp2, rounding);
tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS);
tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS);
stp1_5 = _mm_packs_epi32(tmp0, tmp2);
}
// Stage4
tmp0 = _mm_adds_epi16(stp1_3, stp2_4);
tmp1 = _mm_adds_epi16(stp1_2, stp1_5);
tmp2 = _mm_subs_epi16(stp1_3, stp2_4);
tmp3 = _mm_subs_epi16(stp1_2, stp1_5);
TRANSPOSE_4X8_10(tmp0, tmp1, tmp2, tmp3, in0, in1, in2, in3)
IDCT8(in0, in1, in2, in3, zero, zero, zero, zero, in0, in1, in2, in3, in4,
in5, in6, in7);
// Final rounding and shift
in0 = _mm_adds_epi16(in0, final_rounding);
in1 = _mm_adds_epi16(in1, final_rounding);
in2 = _mm_adds_epi16(in2, final_rounding);
in3 = _mm_adds_epi16(in3, final_rounding);
in4 = _mm_adds_epi16(in4, final_rounding);
in5 = _mm_adds_epi16(in5, final_rounding);
in6 = _mm_adds_epi16(in6, final_rounding);
in7 = _mm_adds_epi16(in7, final_rounding);
in0 = _mm_srai_epi16(in0, 5);
in1 = _mm_srai_epi16(in1, 5);
in2 = _mm_srai_epi16(in2, 5);
in3 = _mm_srai_epi16(in3, 5);
in4 = _mm_srai_epi16(in4, 5);
in5 = _mm_srai_epi16(in5, 5);
in6 = _mm_srai_epi16(in6, 5);
in7 = _mm_srai_epi16(in7, 5);
RECON_AND_STORE(dest + 0 * stride, in0);
RECON_AND_STORE(dest + 1 * stride, in1);
RECON_AND_STORE(dest + 2 * stride, in2);
RECON_AND_STORE(dest + 3 * stride, in3);
RECON_AND_STORE(dest + 4 * stride, in4);
RECON_AND_STORE(dest + 5 * stride, in5);
RECON_AND_STORE(dest + 6 * stride, in6);
RECON_AND_STORE(dest + 7 * stride, in7);
}
#define IDCT16 \
/* Stage2 */ \
{ \
const __m128i lo_1_15 = _mm_unpacklo_epi16(in[1], in[15]); \
const __m128i hi_1_15 = _mm_unpackhi_epi16(in[1], in[15]); \
const __m128i lo_9_7 = _mm_unpacklo_epi16(in[9], in[7]); \
const __m128i hi_9_7 = _mm_unpackhi_epi16(in[9], in[7]); \
const __m128i lo_5_11 = _mm_unpacklo_epi16(in[5], in[11]); \
const __m128i hi_5_11 = _mm_unpackhi_epi16(in[5], in[11]); \
const __m128i lo_13_3 = _mm_unpacklo_epi16(in[13], in[3]); \
const __m128i hi_13_3 = _mm_unpackhi_epi16(in[13], in[3]); \
\
MULTIPLICATION_AND_ADD(lo_1_15, hi_1_15, lo_9_7, hi_9_7, stg2_0, stg2_1, \
stg2_2, stg2_3, stp2_8, stp2_15, stp2_9, stp2_14) \
\
MULTIPLICATION_AND_ADD(lo_5_11, hi_5_11, lo_13_3, hi_13_3, stg2_4, stg2_5, \
stg2_6, stg2_7, stp2_10, stp2_13, stp2_11, stp2_12) \
} \
\
/* Stage3 */ \
{ \
const __m128i lo_2_14 = _mm_unpacklo_epi16(in[2], in[14]); \
const __m128i hi_2_14 = _mm_unpackhi_epi16(in[2], in[14]); \
const __m128i lo_10_6 = _mm_unpacklo_epi16(in[10], in[6]); \
const __m128i hi_10_6 = _mm_unpackhi_epi16(in[10], in[6]); \
\
MULTIPLICATION_AND_ADD(lo_2_14, hi_2_14, lo_10_6, hi_10_6, stg3_0, stg3_1, \
stg3_2, stg3_3, stp1_4, stp1_7, stp1_5, stp1_6) \
\
stp1_8_0 = _mm_add_epi16(stp2_8, stp2_9); \
stp1_9 = _mm_sub_epi16(stp2_8, stp2_9); \
stp1_10 = _mm_sub_epi16(stp2_11, stp2_10); \
stp1_11 = _mm_add_epi16(stp2_11, stp2_10); \
\
stp1_12_0 = _mm_add_epi16(stp2_12, stp2_13); \
stp1_13 = _mm_sub_epi16(stp2_12, stp2_13); \
stp1_14 = _mm_sub_epi16(stp2_15, stp2_14); \
stp1_15 = _mm_add_epi16(stp2_15, stp2_14); \
} \
\
/* Stage4 */ \
{ \
const __m128i lo_0_8 = _mm_unpacklo_epi16(in[0], in[8]); \
const __m128i hi_0_8 = _mm_unpackhi_epi16(in[0], in[8]); \
const __m128i lo_4_12 = _mm_unpacklo_epi16(in[4], in[12]); \
const __m128i hi_4_12 = _mm_unpackhi_epi16(in[4], in[12]); \
\
const __m128i lo_9_14 = _mm_unpacklo_epi16(stp1_9, stp1_14); \
const __m128i hi_9_14 = _mm_unpackhi_epi16(stp1_9, stp1_14); \
const __m128i lo_10_13 = _mm_unpacklo_epi16(stp1_10, stp1_13); \
const __m128i hi_10_13 = _mm_unpackhi_epi16(stp1_10, stp1_13); \
\
MULTIPLICATION_AND_ADD(lo_0_8, hi_0_8, lo_4_12, hi_4_12, stg4_0, stg4_1, \
stg4_2, stg4_3, stp2_0, stp2_1, stp2_2, stp2_3) \
\
stp2_4 = _mm_add_epi16(stp1_4, stp1_5); \
stp2_5 = _mm_sub_epi16(stp1_4, stp1_5); \
stp2_6 = _mm_sub_epi16(stp1_7, stp1_6); \
stp2_7 = _mm_add_epi16(stp1_7, stp1_6); \
\
MULTIPLICATION_AND_ADD(lo_9_14, hi_9_14, lo_10_13, hi_10_13, stg4_4, \
stg4_5, stg4_6, stg4_7, stp2_9, stp2_14, stp2_10, \
stp2_13) \
} \
\
/* Stage5 */ \
{ \
const __m128i lo_6_5 = _mm_unpacklo_epi16(stp2_6, stp2_5); \
const __m128i hi_6_5 = _mm_unpackhi_epi16(stp2_6, stp2_5); \
\
stp1_0 = _mm_add_epi16(stp2_0, stp2_3); \
stp1_1 = _mm_add_epi16(stp2_1, stp2_2); \
stp1_2 = _mm_sub_epi16(stp2_1, stp2_2); \
stp1_3 = _mm_sub_epi16(stp2_0, stp2_3); \
\
tmp0 = _mm_madd_epi16(lo_6_5, stg4_1); \
tmp1 = _mm_madd_epi16(hi_6_5, stg4_1); \
tmp2 = _mm_madd_epi16(lo_6_5, stg4_0); \
tmp3 = _mm_madd_epi16(hi_6_5, stg4_0); \
\
tmp0 = _mm_add_epi32(tmp0, rounding); \
tmp1 = _mm_add_epi32(tmp1, rounding); \
tmp2 = _mm_add_epi32(tmp2, rounding); \
tmp3 = _mm_add_epi32(tmp3, rounding); \
\
tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS); \
tmp1 = _mm_srai_epi32(tmp1, DCT_CONST_BITS); \
tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS); \
tmp3 = _mm_srai_epi32(tmp3, DCT_CONST_BITS); \
\
stp1_5 = _mm_packs_epi32(tmp0, tmp1); \
stp1_6 = _mm_packs_epi32(tmp2, tmp3); \
\
stp1_8 = _mm_add_epi16(stp1_8_0, stp1_11); \
stp1_9 = _mm_add_epi16(stp2_9, stp2_10); \
stp1_10 = _mm_sub_epi16(stp2_9, stp2_10); \
stp1_11 = _mm_sub_epi16(stp1_8_0, stp1_11); \
\
stp1_12 = _mm_sub_epi16(stp1_15, stp1_12_0); \
stp1_13 = _mm_sub_epi16(stp2_14, stp2_13); \
stp1_14 = _mm_add_epi16(stp2_14, stp2_13); \
stp1_15 = _mm_add_epi16(stp1_15, stp1_12_0); \
} \
\
/* Stage6 */ \
{ \
const __m128i lo_10_13 = _mm_unpacklo_epi16(stp1_10, stp1_13); \
const __m128i hi_10_13 = _mm_unpackhi_epi16(stp1_10, stp1_13); \
const __m128i lo_11_12 = _mm_unpacklo_epi16(stp1_11, stp1_12); \
const __m128i hi_11_12 = _mm_unpackhi_epi16(stp1_11, stp1_12); \
\
stp2_0 = _mm_add_epi16(stp1_0, stp2_7); \
stp2_1 = _mm_add_epi16(stp1_1, stp1_6); \
stp2_2 = _mm_add_epi16(stp1_2, stp1_5); \
stp2_3 = _mm_add_epi16(stp1_3, stp2_4); \
stp2_4 = _mm_sub_epi16(stp1_3, stp2_4); \
stp2_5 = _mm_sub_epi16(stp1_2, stp1_5); \
stp2_6 = _mm_sub_epi16(stp1_1, stp1_6); \
stp2_7 = _mm_sub_epi16(stp1_0, stp2_7); \
\
MULTIPLICATION_AND_ADD(lo_10_13, hi_10_13, lo_11_12, hi_11_12, stg6_0, \
stg4_0, stg6_0, stg4_0, stp2_10, stp2_13, stp2_11, \
stp2_12) \
}
#define IDCT16_10 \
/* Stage2 */ \
{ \
const __m128i lo_1_15 = _mm_unpacklo_epi16(in[1], zero); \
const __m128i hi_1_15 = _mm_unpackhi_epi16(in[1], zero); \
const __m128i lo_13_3 = _mm_unpacklo_epi16(zero, in[3]); \
const __m128i hi_13_3 = _mm_unpackhi_epi16(zero, in[3]); \
\
MULTIPLICATION_AND_ADD(lo_1_15, hi_1_15, lo_13_3, hi_13_3, stg2_0, stg2_1, \
stg2_6, stg2_7, stp1_8_0, stp1_15, stp1_11, \
stp1_12_0) \
} \
\
/* Stage3 */ \
{ \
const __m128i lo_2_14 = _mm_unpacklo_epi16(in[2], zero); \
const __m128i hi_2_14 = _mm_unpackhi_epi16(in[2], zero); \
\
MULTIPLICATION_AND_ADD_2(lo_2_14, hi_2_14, stg3_0, stg3_1, stp2_4, stp2_7) \
\
stp1_9 = stp1_8_0; \
stp1_10 = stp1_11; \
\
stp1_13 = stp1_12_0; \
stp1_14 = stp1_15; \
} \
\
/* Stage4 */ \
{ \
const __m128i lo_0_8 = _mm_unpacklo_epi16(in[0], zero); \
const __m128i hi_0_8 = _mm_unpackhi_epi16(in[0], zero); \
\
const __m128i lo_9_14 = _mm_unpacklo_epi16(stp1_9, stp1_14); \
const __m128i hi_9_14 = _mm_unpackhi_epi16(stp1_9, stp1_14); \
const __m128i lo_10_13 = _mm_unpacklo_epi16(stp1_10, stp1_13); \
const __m128i hi_10_13 = _mm_unpackhi_epi16(stp1_10, stp1_13); \
\
MULTIPLICATION_AND_ADD_2(lo_0_8, hi_0_8, stg4_0, stg4_1, stp1_0, stp1_1) \
stp2_5 = stp2_4; \
stp2_6 = stp2_7; \
\
MULTIPLICATION_AND_ADD(lo_9_14, hi_9_14, lo_10_13, hi_10_13, stg4_4, \
stg4_5, stg4_6, stg4_7, stp2_9, stp2_14, stp2_10, \
stp2_13) \
} \
\
/* Stage5 */ \
{ \
const __m128i lo_6_5 = _mm_unpacklo_epi16(stp2_6, stp2_5); \
const __m128i hi_6_5 = _mm_unpackhi_epi16(stp2_6, stp2_5); \
\
stp1_2 = stp1_1; \
stp1_3 = stp1_0; \
\
tmp0 = _mm_madd_epi16(lo_6_5, stg4_1); \
tmp1 = _mm_madd_epi16(hi_6_5, stg4_1); \
tmp2 = _mm_madd_epi16(lo_6_5, stg4_0); \
tmp3 = _mm_madd_epi16(hi_6_5, stg4_0); \
\
tmp0 = _mm_add_epi32(tmp0, rounding); \
tmp1 = _mm_add_epi32(tmp1, rounding); \
tmp2 = _mm_add_epi32(tmp2, rounding); \
tmp3 = _mm_add_epi32(tmp3, rounding); \
\
tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS); \
tmp1 = _mm_srai_epi32(tmp1, DCT_CONST_BITS); \
tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS); \
tmp3 = _mm_srai_epi32(tmp3, DCT_CONST_BITS); \
\
stp1_5 = _mm_packs_epi32(tmp0, tmp1); \
stp1_6 = _mm_packs_epi32(tmp2, tmp3); \
\
stp1_8 = _mm_add_epi16(stp1_8_0, stp1_11); \
stp1_9 = _mm_add_epi16(stp2_9, stp2_10); \
stp1_10 = _mm_sub_epi16(stp2_9, stp2_10); \
stp1_11 = _mm_sub_epi16(stp1_8_0, stp1_11); \
\
stp1_12 = _mm_sub_epi16(stp1_15, stp1_12_0); \
stp1_13 = _mm_sub_epi16(stp2_14, stp2_13); \
stp1_14 = _mm_add_epi16(stp2_14, stp2_13); \
stp1_15 = _mm_add_epi16(stp1_15, stp1_12_0); \
} \
\
/* Stage6 */ \
{ \
const __m128i lo_10_13 = _mm_unpacklo_epi16(stp1_10, stp1_13); \
const __m128i hi_10_13 = _mm_unpackhi_epi16(stp1_10, stp1_13); \
const __m128i lo_11_12 = _mm_unpacklo_epi16(stp1_11, stp1_12); \
const __m128i hi_11_12 = _mm_unpackhi_epi16(stp1_11, stp1_12); \
\
stp2_0 = _mm_add_epi16(stp1_0, stp2_7); \
stp2_1 = _mm_add_epi16(stp1_1, stp1_6); \
stp2_2 = _mm_add_epi16(stp1_2, stp1_5); \
stp2_3 = _mm_add_epi16(stp1_3, stp2_4); \
stp2_4 = _mm_sub_epi16(stp1_3, stp2_4); \
stp2_5 = _mm_sub_epi16(stp1_2, stp1_5); \
stp2_6 = _mm_sub_epi16(stp1_1, stp1_6); \
stp2_7 = _mm_sub_epi16(stp1_0, stp2_7); \
\
MULTIPLICATION_AND_ADD(lo_10_13, hi_10_13, lo_11_12, hi_11_12, stg6_0, \
stg4_0, stg6_0, stg4_0, stp2_10, stp2_13, stp2_11, \
stp2_12) \
}
void aom_idct16x16_256_add_sse2(const tran_low_t *input, uint8_t *dest,
int stride) {
const __m128i rounding = _mm_set1_epi32(DCT_CONST_ROUNDING);
const __m128i final_rounding = _mm_set1_epi16(1 << 5);
const __m128i zero = _mm_setzero_si128();
const __m128i stg2_0 = pair_set_epi16(cospi_30_64, -cospi_2_64);
const __m128i stg2_1 = pair_set_epi16(cospi_2_64, cospi_30_64);
const __m128i stg2_2 = pair_set_epi16(cospi_14_64, -cospi_18_64);
const __m128i stg2_3 = pair_set_epi16(cospi_18_64, cospi_14_64);
const __m128i stg2_4 = pair_set_epi16(cospi_22_64, -cospi_10_64);
const __m128i stg2_5 = pair_set_epi16(cospi_10_64, cospi_22_64);
const __m128i stg2_6 = pair_set_epi16(cospi_6_64, -cospi_26_64);
const __m128i stg2_7 = pair_set_epi16(cospi_26_64, cospi_6_64);
const __m128i stg3_0 = pair_set_epi16(cospi_28_64, -cospi_4_64);
const __m128i stg3_1 = pair_set_epi16(cospi_4_64, cospi_28_64);
const __m128i stg3_2 = pair_set_epi16(cospi_12_64, -cospi_20_64);
const __m128i stg3_3 = pair_set_epi16(cospi_20_64, cospi_12_64);
const __m128i stg4_0 = pair_set_epi16(cospi_16_64, cospi_16_64);
const __m128i stg4_1 = pair_set_epi16(cospi_16_64, -cospi_16_64);
const __m128i stg4_2 = pair_set_epi16(cospi_24_64, -cospi_8_64);
const __m128i stg4_3 = pair_set_epi16(cospi_8_64, cospi_24_64);
const __m128i stg4_4 = pair_set_epi16(-cospi_8_64, cospi_24_64);
const __m128i stg4_5 = pair_set_epi16(cospi_24_64, cospi_8_64);
const __m128i stg4_6 = pair_set_epi16(-cospi_24_64, -cospi_8_64);
const __m128i stg4_7 = pair_set_epi16(-cospi_8_64, cospi_24_64);
const __m128i stg6_0 = pair_set_epi16(-cospi_16_64, cospi_16_64);
__m128i in[16], l[16], r[16], *curr1;
__m128i stp1_0, stp1_1, stp1_2, stp1_3, stp1_4, stp1_5, stp1_6, stp1_7,
stp1_8, stp1_9, stp1_10, stp1_11, stp1_12, stp1_13, stp1_14, stp1_15,
stp1_8_0, stp1_12_0;
__m128i stp2_0, stp2_1, stp2_2, stp2_3, stp2_4, stp2_5, stp2_6, stp2_7,
stp2_8, stp2_9, stp2_10, stp2_11, stp2_12, stp2_13, stp2_14, stp2_15;
__m128i tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
int i;
curr1 = l;
for (i = 0; i < 2; i++) {
// 1-D idct
// Load input data.
in[0] = load_input_data(input);
in[8] = load_input_data(input + 8 * 1);
in[1] = load_input_data(input + 8 * 2);
in[9] = load_input_data(input + 8 * 3);
in[2] = load_input_data(input + 8 * 4);
in[10] = load_input_data(input + 8 * 5);
in[3] = load_input_data(input + 8 * 6);
in[11] = load_input_data(input + 8 * 7);
in[4] = load_input_data(input + 8 * 8);
in[12] = load_input_data(input + 8 * 9);
in[5] = load_input_data(input + 8 * 10);
in[13] = load_input_data(input + 8 * 11);
in[6] = load_input_data(input + 8 * 12);
in[14] = load_input_data(input + 8 * 13);
in[7] = load_input_data(input + 8 * 14);
in[15] = load_input_data(input + 8 * 15);
array_transpose_8x8(in, in);
array_transpose_8x8(in + 8, in + 8);
IDCT16
// Stage7
curr1[0] = _mm_add_epi16(stp2_0, stp1_15);
curr1[1] = _mm_add_epi16(stp2_1, stp1_14);
curr1[2] = _mm_add_epi16(stp2_2, stp2_13);
curr1[3] = _mm_add_epi16(stp2_3, stp2_12);
curr1[4] = _mm_add_epi16(stp2_4, stp2_11);
curr1[5] = _mm_add_epi16(stp2_5, stp2_10);
curr1[6] = _mm_add_epi16(stp2_6, stp1_9);
curr1[7] = _mm_add_epi16(stp2_7, stp1_8);
curr1[8] = _mm_sub_epi16(stp2_7, stp1_8);
curr1[9] = _mm_sub_epi16(stp2_6, stp1_9);
curr1[10] = _mm_sub_epi16(stp2_5, stp2_10);
curr1[11] = _mm_sub_epi16(stp2_4, stp2_11);
curr1[12] = _mm_sub_epi16(stp2_3, stp2_12);
curr1[13] = _mm_sub_epi16(stp2_2, stp2_13);
curr1[14] = _mm_sub_epi16(stp2_1, stp1_14);
curr1[15] = _mm_sub_epi16(stp2_0, stp1_15);
curr1 = r;
input += 128;
}
for (i = 0; i < 2; i++) {
int j;
// 1-D idct
array_transpose_8x8(l + i * 8, in);
array_transpose_8x8(r + i * 8, in + 8);
IDCT16
// 2-D
in[0] = _mm_add_epi16(stp2_0, stp1_15);
in[1] = _mm_add_epi16(stp2_1, stp1_14);
in[2] = _mm_add_epi16(stp2_2, stp2_13);
in[3] = _mm_add_epi16(stp2_3, stp2_12);
in[4] = _mm_add_epi16(stp2_4, stp2_11);
in[5] = _mm_add_epi16(stp2_5, stp2_10);
in[6] = _mm_add_epi16(stp2_6, stp1_9);
in[7] = _mm_add_epi16(stp2_7, stp1_8);
in[8] = _mm_sub_epi16(stp2_7, stp1_8);
in[9] = _mm_sub_epi16(stp2_6, stp1_9);
in[10] = _mm_sub_epi16(stp2_5, stp2_10);
in[11] = _mm_sub_epi16(stp2_4, stp2_11);
in[12] = _mm_sub_epi16(stp2_3, stp2_12);
in[13] = _mm_sub_epi16(stp2_2, stp2_13);
in[14] = _mm_sub_epi16(stp2_1, stp1_14);
in[15] = _mm_sub_epi16(stp2_0, stp1_15);
for (j = 0; j < 16; ++j) {
// Final rounding and shift
in[j] = _mm_adds_epi16(in[j], final_rounding);
in[j] = _mm_srai_epi16(in[j], 6);
RECON_AND_STORE(dest + j * stride, in[j]);
}
dest += 8;
}
}
void aom_idct16x16_1_add_sse2(const tran_low_t *input, uint8_t *dest,
int stride) {
__m128i dc_value;
const __m128i zero = _mm_setzero_si128();
int a, i;
a = (int)dct_const_round_shift(input[0] * cospi_16_64);
a = (int)dct_const_round_shift(a * cospi_16_64);
a = ROUND_POWER_OF_TWO(a, 6);
if (a == 0) return;
dc_value = _mm_set1_epi16(a);
for (i = 0; i < 16; ++i) {
RECON_AND_STORE(dest + 0, dc_value);
RECON_AND_STORE(dest + 8, dc_value);
dest += stride;
}
}
void iadst16_8col(__m128i *in) {
// perform 16x16 1-D ADST for 8 columns
__m128i s[16], x[16], u[32], v[32];
const __m128i k__cospi_p01_p31 = pair_set_epi16(cospi_1_64, cospi_31_64);
const __m128i k__cospi_p31_m01 = pair_set_epi16(cospi_31_64, -cospi_1_64);
const __m128i k__cospi_p05_p27 = pair_set_epi16(cospi_5_64, cospi_27_64);
const __m128i k__cospi_p27_m05 = pair_set_epi16(cospi_27_64, -cospi_5_64);
const __m128i k__cospi_p09_p23 = pair_set_epi16(cospi_9_64, cospi_23_64);
const __m128i k__cospi_p23_m09 = pair_set_epi16(cospi_23_64, -cospi_9_64);
const __m128i k__cospi_p13_p19 = pair_set_epi16(cospi_13_64, cospi_19_64);
const __m128i k__cospi_p19_m13 = pair_set_epi16(cospi_19_64, -cospi_13_64);
const __m128i k__cospi_p17_p15 = pair_set_epi16(cospi_17_64, cospi_15_64);
const __m128i k__cospi_p15_m17 = pair_set_epi16(cospi_15_64, -cospi_17_64);
const __m128i k__cospi_p21_p11 = pair_set_epi16(cospi_21_64, cospi_11_64);
const __m128i k__cospi_p11_m21 = pair_set_epi16(cospi_11_64, -cospi_21_64);
const __m128i k__cospi_p25_p07 = pair_set_epi16(cospi_25_64, cospi_7_64);
const __m128i k__cospi_p07_m25 = pair_set_epi16(cospi_7_64, -cospi_25_64);
const __m128i k__cospi_p29_p03 = pair_set_epi16(cospi_29_64, cospi_3_64);
const __m128i k__cospi_p03_m29 = pair_set_epi16(cospi_3_64, -cospi_29_64);
const __m128i k__cospi_p04_p28 = pair_set_epi16(cospi_4_64, cospi_28_64);
const __m128i k__cospi_p28_m04 = pair_set_epi16(cospi_28_64, -cospi_4_64);
const __m128i k__cospi_p20_p12 = pair_set_epi16(cospi_20_64, cospi_12_64);
const __m128i k__cospi_p12_m20 = pair_set_epi16(cospi_12_64, -cospi_20_64);
const __m128i k__cospi_m28_p04 = pair_set_epi16(-cospi_28_64, cospi_4_64);
const __m128i k__cospi_m12_p20 = pair_set_epi16(-cospi_12_64, cospi_20_64);
const __m128i k__cospi_p08_p24 = pair_set_epi16(cospi_8_64, cospi_24_64);
const __m128i k__cospi_p24_m08 = pair_set_epi16(cospi_24_64, -cospi_8_64);
const __m128i k__cospi_m24_p08 = pair_set_epi16(-cospi_24_64, cospi_8_64);
const __m128i k__cospi_m16_m16 = _mm_set1_epi16((int16_t)-cospi_16_64);
const __m128i k__cospi_p16_p16 = _mm_set1_epi16((int16_t)cospi_16_64);
const __m128i k__cospi_p16_m16 = pair_set_epi16(cospi_16_64, -cospi_16_64);
const __m128i k__cospi_m16_p16 = pair_set_epi16(-cospi_16_64, cospi_16_64);
const __m128i k__DCT_CONST_ROUNDING = _mm_set1_epi32(DCT_CONST_ROUNDING);
const __m128i kZero = _mm_set1_epi16(0);
u[0] = _mm_unpacklo_epi16(in[15], in[0]);
u[1] = _mm_unpackhi_epi16(in[15], in[0]);
u[2] = _mm_unpacklo_epi16(in[13], in[2]);
u[3] = _mm_unpackhi_epi16(in[13], in[2]);
u[4] = _mm_unpacklo_epi16(in[11], in[4]);
u[5] = _mm_unpackhi_epi16(in[11], in[4]);
u[6] = _mm_unpacklo_epi16(in[9], in[6]);
u[7] = _mm_unpackhi_epi16(in[9], in[6]);
u[8] = _mm_unpacklo_epi16(in[7], in[8]);
u[9] = _mm_unpackhi_epi16(in[7], in[8]);
u[10] = _mm_unpacklo_epi16(in[5], in[10]);
u[11] = _mm_unpackhi_epi16(in[5], in[10]);
u[12] = _mm_unpacklo_epi16(in[3], in[12]);
u[13] = _mm_unpackhi_epi16(in[3], in[12]);
u[14] = _mm_unpacklo_epi16(in[1], in[14]);
u[15] = _mm_unpackhi_epi16(in[1], in[14]);
v[0] = _mm_madd_epi16(u[0], k__cospi_p01_p31);
v[1] = _mm_madd_epi16(u[1], k__cospi_p01_p31);
v[2] = _mm_madd_epi16(u[0], k__cospi_p31_m01);
v[3] = _mm_madd_epi16(u[1], k__cospi_p31_m01);
v[4] = _mm_madd_epi16(u[2], k__cospi_p05_p27);
v[5] = _mm_madd_epi16(u[3], k__cospi_p05_p27);
v[6] = _mm_madd_epi16(u[2], k__cospi_p27_m05);
v[7] = _mm_madd_epi16(u[3], k__cospi_p27_m05);
v[8] = _mm_madd_epi16(u[4], k__cospi_p09_p23);
v[9] = _mm_madd_epi16(u[5], k__cospi_p09_p23);
v[10] = _mm_madd_epi16(u[4], k__cospi_p23_m09);
v[11] = _mm_madd_epi16(u[5], k__cospi_p23_m09);
v[12] = _mm_madd_epi16(u[6], k__cospi_p13_p19);
v[13] = _mm_madd_epi16(u[7], k__cospi_p13_p19);
v[14] = _mm_madd_epi16(u[6], k__cospi_p19_m13);
v[15] = _mm_madd_epi16(u[7], k__cospi_p19_m13);
v[16] = _mm_madd_epi16(u[8], k__cospi_p17_p15);
v[17] = _mm_madd_epi16(u[9], k__cospi_p17_p15);
v[18] = _mm_madd_epi16(u[8], k__cospi_p15_m17);
v[19] = _mm_madd_epi16(u[9], k__cospi_p15_m17);
v[20] = _mm_madd_epi16(u[10], k__cospi_p21_p11);
v[21] = _mm_madd_epi16(u[11], k__cospi_p21_p11);
v[22] = _mm_madd_epi16(u[10], k__cospi_p11_m21);
v[23] = _mm_madd_epi16(u[11], k__cospi_p11_m21);
v[24] = _mm_madd_epi16(u[12], k__cospi_p25_p07);
v[25] = _mm_madd_epi16(u[13], k__cospi_p25_p07);
v[26] = _mm_madd_epi16(u[12], k__cospi_p07_m25);
v[27] = _mm_madd_epi16(u[13], k__cospi_p07_m25);
v[28] = _mm_madd_epi16(u[14], k__cospi_p29_p03);
v[29] = _mm_madd_epi16(u[15], k__cospi_p29_p03);
v[30] = _mm_madd_epi16(u[14], k__cospi_p03_m29);
v[31] = _mm_madd_epi16(u[15], k__cospi_p03_m29);
u[0] = _mm_add_epi32(v[0], v[16]);
u[1] = _mm_add_epi32(v[1], v[17]);
u[2] = _mm_add_epi32(v[2], v[18]);
u[3] = _mm_add_epi32(v[3], v[19]);
u[4] = _mm_add_epi32(v[4], v[20]);
u[5] = _mm_add_epi32(v[5], v[21]);
u[6] = _mm_add_epi32(v[6], v[22]);
u[7] = _mm_add_epi32(v[7], v[23]);
u[8] = _mm_add_epi32(v[8], v[24]);
u[9] = _mm_add_epi32(v[9], v[25]);
u[10] = _mm_add_epi32(v[10], v[26]);
u[11] = _mm_add_epi32(v[11], v[27]);
u[12] = _mm_add_epi32(v[12], v[28]);
u[13] = _mm_add_epi32(v[13], v[29]);
u[14] = _mm_add_epi32(v[14], v[30]);
u[15] = _mm_add_epi32(v[15], v[31]);
u[16] = _mm_sub_epi32(v[0], v[16]);
u[17] = _mm_sub_epi32(v[1], v[17]);
u[18] = _mm_sub_epi32(v[2], v[18]);
u[19] = _mm_sub_epi32(v[3], v[19]);
u[20] = _mm_sub_epi32(v[4], v[20]);
u[21] = _mm_sub_epi32(v[5], v[21]);
u[22] = _mm_sub_epi32(v[6], v[22]);
u[23] = _mm_sub_epi32(v[7], v[23]);
u[24] = _mm_sub_epi32(v[8], v[24]);
u[25] = _mm_sub_epi32(v[9], v[25]);
u[26] = _mm_sub_epi32(v[10], v[26]);
u[27] = _mm_sub_epi32(v[11], v[27]);
u[28] = _mm_sub_epi32(v[12], v[28]);
u[29] = _mm_sub_epi32(v[13], v[29]);
u[30] = _mm_sub_epi32(v[14], v[30]);
u[31] = _mm_sub_epi32(v[15], v[31]);
v[0] = _mm_add_epi32(u[0], k__DCT_CONST_ROUNDING);
v[1] = _mm_add_epi32(u[1], k__DCT_CONST_ROUNDING);
v[2] = _mm_add_epi32(u[2], k__DCT_CONST_ROUNDING);
v[3] = _mm_add_epi32(u[3], k__DCT_CONST_ROUNDING);
v[4] = _mm_add_epi32(u[4], k__DCT_CONST_ROUNDING);
v[5] = _mm_add_epi32(u[5], k__DCT_CONST_ROUNDING);
v[6] = _mm_add_epi32(u[6], k__DCT_CONST_ROUNDING);
v[7] = _mm_add_epi32(u[7], k__DCT_CONST_ROUNDING);
v[8] = _mm_add_epi32(u[8], k__DCT_CONST_ROUNDING);
v[9] = _mm_add_epi32(u[9], k__DCT_CONST_ROUNDING);
v[10] = _mm_add_epi32(u[10], k__DCT_CONST_ROUNDING);
v[11] = _mm_add_epi32(u[11], k__DCT_CONST_ROUNDING);
v[12] = _mm_add_epi32(u[12], k__DCT_CONST_ROUNDING);
v[13] = _mm_add_epi32(u[13], k__DCT_CONST_ROUNDING);
v[14] = _mm_add_epi32(u[14], k__DCT_CONST_ROUNDING);
v[15] = _mm_add_epi32(u[15], k__DCT_CONST_ROUNDING);
v[16] = _mm_add_epi32(u[16], k__DCT_CONST_ROUNDING);
v[17] = _mm_add_epi32(u[17], k__DCT_CONST_ROUNDING);
v[18] = _mm_add_epi32(u[18], k__DCT_CONST_ROUNDING);
v[19] = _mm_add_epi32(u[19], k__DCT_CONST_ROUNDING);
v[20] = _mm_add_epi32(u[20], k__DCT_CONST_ROUNDING);
v[21] = _mm_add_epi32(u[21], k__DCT_CONST_ROUNDING);
v[22] = _mm_add_epi32(u[22], k__DCT_CONST_ROUNDING);
v[23] = _mm_add_epi32(u[23], k__DCT_CONST_ROUNDING);
v[24] = _mm_add_epi32(u[24], k__DCT_CONST_ROUNDING);
v[25] = _mm_add_epi32(u[25], k__DCT_CONST_ROUNDING);
v[26] = _mm_add_epi32(u[26], k__DCT_CONST_ROUNDING);
v[27] = _mm_add_epi32(u[27], k__DCT_CONST_ROUNDING);
v[28] = _mm_add_epi32(u[28], k__DCT_CONST_ROUNDING);
v[29] = _mm_add_epi32(u[29], k__DCT_CONST_ROUNDING);
v[30] = _mm_add_epi32(u[30], k__DCT_CONST_ROUNDING);
v[31] = _mm_add_epi32(u[31], k__DCT_CONST_ROUNDING);
u[0] = _mm_srai_epi32(v[0], DCT_CONST_BITS);
u[1] = _mm_srai_epi32(v[1], DCT_CONST_BITS);
u[2] = _mm_srai_epi32(v[2], DCT_CONST_BITS);
u[3] = _mm_srai_epi32(v[3], DCT_CONST_BITS);
u[4] = _mm_srai_epi32(v[4], DCT_CONST_BITS);
u[5] = _mm_srai_epi32(v[5], DCT_CONST_BITS);
u[6] = _mm_srai_epi32(v[6], DCT_CONST_BITS);
u[7] = _mm_srai_epi32(v[7], DCT_CONST_BITS);
u[8] = _mm_srai_epi32(v[8], DCT_CONST_BITS);
u[9] = _mm_srai_epi32(v[9], DCT_CONST_BITS);
u[10] = _mm_srai_epi32(v[10], DCT_CONST_BITS);
u[11] = _mm_srai_epi32(v[11], DCT_CONST_BITS);
u[12] = _mm_srai_epi32(v[12], DCT_CONST_BITS);
u[13] = _mm_srai_epi32(v[13], DCT_CONST_BITS);
u[14] = _mm_srai_epi32(v[14], DCT_CONST_BITS);
u[15] = _mm_srai_epi32(v[15], DCT_CONST_BITS);
u[16] = _mm_srai_epi32(v[16], DCT_CONST_BITS);
u[17] = _mm_srai_epi32(v[17], DCT_CONST_BITS);
u[18] = _mm_srai_epi32(v[18], DCT_CONST_BITS);
u[19] = _mm_srai_epi32(v[19], DCT_CONST_BITS);
u[20] = _mm_srai_epi32(v[20], DCT_CONST_BITS);
u[21] = _mm_srai_epi32(v[21], DCT_CONST_BITS);
u[22] = _mm_srai_epi32(v[22], DCT_CONST_BITS);
u[23] = _mm_srai_epi32(v[23], DCT_CONST_BITS);
u[24] = _mm_srai_epi32(v[24], DCT_CONST_BITS);
u[25] = _mm_srai_epi32(v[25], DCT_CONST_BITS);
u[26] = _mm_srai_epi32(v[26], DCT_CONST_BITS);
u[27] = _mm_srai_epi32(v[27], DCT_CONST_BITS);
u[28] = _mm_srai_epi32(v[28], DCT_CONST_BITS);
u[29] = _mm_srai_epi32(v[29], DCT_CONST_BITS);
u[30] = _mm_srai_epi32(v[30], DCT_CONST_BITS);
u[31] = _mm_srai_epi32(v[31], DCT_CONST_BITS);
s[0] = _mm_packs_epi32(u[0], u[1]);
s[1] = _mm_packs_epi32(u[2], u[3]);
s[2] = _mm_packs_epi32(u[4], u[5]);
s[3] = _mm_packs_epi32(u[6], u[7]);
s[4] = _mm_packs_epi32(u[8], u[9]);
s[5] = _mm_packs_epi32(u[10], u[11]);
s[6] = _mm_packs_epi32(u[12], u[13]);
s[7] = _mm_packs_epi32(u[14], u[15]);
s[8] = _mm_packs_epi32(u[16], u[17]);
s[9] = _mm_packs_epi32(u[18], u[19]);
s[10] = _mm_packs_epi32(u[20], u[21]);
s[11] = _mm_packs_epi32(u[22], u[23]);
s[12] = _mm_packs_epi32(u[24], u[25]);
s[13] = _mm_packs_epi32(u[26], u[27]);
s[14] = _mm_packs_epi32(u[28], u[29]);
s[15] = _mm_packs_epi32(u[30], u[31]);
// stage 2
u[0] = _mm_unpacklo_epi16(s[8], s[9]);
u[1] = _mm_unpackhi_epi16(s[8], s[9]);
u[2] = _mm_unpacklo_epi16(s[10], s[11]);
u[3] = _mm_unpackhi_epi16(s[10], s[11]);
u[4] = _mm_unpacklo_epi16(s[12], s[13]);
u[5] = _mm_unpackhi_epi16(s[12], s[13]);
u[6] = _mm_unpacklo_epi16(s[14], s[15]);
u[7] = _mm_unpackhi_epi16(s[14], s[15]);
v[0] = _mm_madd_epi16(u[0], k__cospi_p04_p28);
v[1] = _mm_madd_epi16(u[1], k__cospi_p04_p28);
v[2] = _mm_madd_epi16(u[0], k__cospi_p28_m04);
v[3] = _mm_madd_epi16(u[1], k__cospi_p28_m04);
v[4] = _mm_madd_epi16(u[2], k__cospi_p20_p12);
v[5] = _mm_madd_epi16(u[3], k__cospi_p20_p12);
v[6] = _mm_madd_epi16(u[2], k__cospi_p12_m20);
v[7] = _mm_madd_epi16(u[3], k__cospi_p12_m20);
v[8] = _mm_madd_epi16(u[4], k__cospi_m28_p04);
v[9] = _mm_madd_epi16(u[5], k__cospi_m28_p04);
v[10] = _mm_madd_epi16(u[4], k__cospi_p04_p28);
v[11] = _mm_madd_epi16(u[5], k__cospi_p04_p28);
v[12] = _mm_madd_epi16(u[6], k__cospi_m12_p20);
v[13] = _mm_madd_epi16(u[7], k__cospi_m12_p20);
v[14] = _mm_madd_epi16(u[6], k__cospi_p20_p12);
v[15] = _mm_madd_epi16(u[7], k__cospi_p20_p12);
u[0] = _mm_add_epi32(v[0], v[8]);
u[1] = _mm_add_epi32(v[1], v[9]);
u[2] = _mm_add_epi32(v[2], v[10]);
u[3] = _mm_add_epi32(v[3], v[11]);
u[4] = _mm_add_epi32(v[4], v[12]);
u[5] = _mm_add_epi32(v[5], v[13]);
u[6] = _mm_add_epi32(v[6], v[14]);
u[7] = _mm_add_epi32(v[7], v[15]);
u[8] = _mm_sub_epi32(v[0], v[8]);
u[9] = _mm_sub_epi32(v[1], v[9]);
u[10] = _mm_sub_epi32(v[2], v[10]);
u[11] = _mm_sub_epi32(v[3], v[11]);
u[12] = _mm_sub_epi32(v[4], v[12]);
u[13] = _mm_sub_epi32(v[5], v[13]);
u[14] = _mm_sub_epi32(v[6], v[14]);
u[15] = _mm_sub_epi32(v[7], v[15]);
v[0] = _mm_add_epi32(u[0], k__DCT_CONST_ROUNDING);
v[1] = _mm_add_epi32(u[1], k__DCT_CONST_ROUNDING);
v[2] = _mm_add_epi32(u[2], k__DCT_CONST_ROUNDING);
v[3] = _mm_add_epi32(u[3], k__DCT_CONST_ROUNDING);
v[4] = _mm_add_epi32(u[4], k__DCT_CONST_ROUNDING);
v[5] = _mm_add_epi32(u[5], k__DCT_CONST_ROUNDING);
v[6] = _mm_add_epi32(u[6], k__DCT_CONST_ROUNDING);
v[7] = _mm_add_epi32(u[7], k__DCT_CONST_ROUNDING);
v[8] = _mm_add_epi32(u[8], k__DCT_CONST_ROUNDING);
v[9] = _mm_add_epi32(u[9], k__DCT_CONST_ROUNDING);
v[10] = _mm_add_epi32(u[10], k__DCT_CONST_ROUNDING);
v[11] = _mm_add_epi32(u[11], k__DCT_CONST_ROUNDING);
v[12] = _mm_add_epi32(u[12], k__DCT_CONST_ROUNDING);
v[13] = _mm_add_epi32(u[13], k__DCT_CONST_ROUNDING);
v[14] = _mm_add_epi32(u[14], k__DCT_CONST_ROUNDING);
v[15] = _mm_add_epi32(u[15], k__DCT_CONST_ROUNDING);
u[0] = _mm_srai_epi32(v[0], DCT_CONST_BITS);
u[1] = _mm_srai_epi32(v[1], DCT_CONST_BITS);
u[2] = _mm_srai_epi32(v[2], DCT_CONST_BITS);
u[3] = _mm_srai_epi32(v[3], DCT_CONST_BITS);
u[4] = _mm_srai_epi32(v[4], DCT_CONST_BITS);
u[5] = _mm_srai_epi32(v[5], DCT_CONST_BITS);
u[6] = _mm_srai_epi32(v[6], DCT_CONST_BITS);
u[7] = _mm_srai_epi32(v[7], DCT_CONST_BITS);
u[8] = _mm_srai_epi32(v[8], DCT_CONST_BITS);
u[9] = _mm_srai_epi32(v[9], DCT_CONST_BITS);
u[10] = _mm_srai_epi32(v[10], DCT_CONST_BITS);
u[11] = _mm_srai_epi32(v[11], DCT_CONST_BITS);
u[12] = _mm_srai_epi32(v[12], DCT_CONST_BITS);
u[13] = _mm_srai_epi32(v[13], DCT_CONST_BITS);
u[14] = _mm_srai_epi32(v[14], DCT_CONST_BITS);
u[15] = _mm_srai_epi32(v[15], DCT_CONST_BITS);
x[0] = _mm_add_epi16(s[0], s[4]);
x[1] = _mm_add_epi16(s[1], s[5]);
x[2] = _mm_add_epi16(s[2], s[6]);
x[3] = _mm_add_epi16(s[3], s[7]);
x[4] = _mm_sub_epi16(s[0], s[4]);
x[5] = _mm_sub_epi16(s[1], s[5]);
x[6] = _mm_sub_epi16(s[2], s[6]);
x[7] = _mm_sub_epi16(s[3], s[7]);
x[8] = _mm_packs_epi32(u[0], u[1]);
x[9] = _mm_packs_epi32(u[2], u[3]);
x[10] = _mm_packs_epi32(u[4], u[5]);
x[11] = _mm_packs_epi32(u[6], u[7]);
x[12] = _mm_packs_epi32(u[8], u[9]);
x[13] = _mm_packs_epi32(u[10], u[11]);
x[14] = _mm_packs_epi32(u[12], u[13]);
x[15] = _mm_packs_epi32(u[14], u[15]);
// stage 3
u[0] = _mm_unpacklo_epi16(x[4], x[5]);
u[1] = _mm_unpackhi_epi16(x[4], x[5]);
u[2] = _mm_unpacklo_epi16(x[6], x[7]);
u[3] = _mm_unpackhi_epi16(x[6], x[7]);
u[4] = _mm_unpacklo_epi16(x[12], x[13]);
u[5] = _mm_unpackhi_epi16(x[12], x[13]);
u[6] = _mm_unpacklo_epi16(x[14], x[15]);
u[7] = _mm_unpackhi_epi16(x[14], x[15]);
v[0] = _mm_madd_epi16(u[0], k__cospi_p08_p24);
v[1] = _mm_madd_epi16(u[1], k__cospi_p08_p24);
v[2] = _mm_madd_epi16(u[0], k__cospi_p24_m08);
v[3] = _mm_madd_epi16(u[1], k__cospi_p24_m08);
v[4] = _mm_madd_epi16(u[2], k__cospi_m24_p08);
v[5] = _mm_madd_epi16(u[3], k__cospi_m24_p08);
v[6] = _mm_madd_epi16(u[2], k__cospi_p08_p24);
v[7] = _mm_madd_epi16(u[3], k__cospi_p08_p24);
v[8] = _mm_madd_epi16(u[4], k__cospi_p08_p24);
v[9] = _mm_madd_epi16(u[5], k__cospi_p08_p24);
v[10] = _mm_madd_epi16(u[4], k__cospi_p24_m08);
v[11] = _mm_madd_epi16(u[5], k__cospi_p24_m08);
v[12] = _mm_madd_epi16(u[6], k__cospi_m24_p08);
v[13] = _mm_madd_epi16(u[7], k__cospi_m24_p08);
v[14] = _mm_madd_epi16(u[6], k__cospi_p08_p24);
v[15] = _mm_madd_epi16(u[7], k__cospi_p08_p24);
u[0] = _mm_add_epi32(v[0], v[4]);
u[1] = _mm_add_epi32(v[1], v[5]);
u[2] = _mm_add_epi32(v[2], v[6]);
u[3] = _mm_add_epi32(v[3], v[7]);
u[4] = _mm_sub_epi32(v[0], v[4]);
u[5] = _mm_sub_epi32(v[1], v[5]);
u[6] = _mm_sub_epi32(v[2], v[6]);
u[7] = _mm_sub_epi32(v[3], v[7]);
u[8] = _mm_add_epi32(v[8], v[12]);
u[9] = _mm_add_epi32(v[9], v[13]);
u[10] = _mm_add_epi32(v[10], v[14]);
u[11] = _mm_add_epi32(v[11], v[15]);
u[12] = _mm_sub_epi32(v[8], v[12]);
u[13] = _mm_sub_epi32(v[9], v[13]);
u[14] = _mm_sub_epi32(v[10], v[14]);
u[15] = _mm_sub_epi32(v[11], v[15]);
u[0] = _mm_add_epi32(u[0], k__DCT_CONST_ROUNDING);
u[1] = _mm_add_epi32(u[1], k__DCT_CONST_ROUNDING);
u[2] = _mm_add_epi32(u[2], k__DCT_CONST_ROUNDING);
u[3] = _mm_add_epi32(u[3], k__DCT_CONST_ROUNDING);
u[4] = _mm_add_epi32(u[4], k__DCT_CONST_ROUNDING);
u[5] = _mm_add_epi32(u[5], k__DCT_CONST_ROUNDING);
u[6] = _mm_add_epi32(u[6], k__DCT_CONST_ROUNDING);
u[7] = _mm_add_epi32(u[7], k__DCT_CONST_ROUNDING);
u[8] = _mm_add_epi32(u[8], k__DCT_CONST_ROUNDING);
u[9] = _mm_add_epi32(u[9], k__DCT_CONST_ROUNDING);
u[10] = _mm_add_epi32(u[10], k__DCT_CONST_ROUNDING);
u[11] = _mm_add_epi32(u[11], k__DCT_CONST_ROUNDING);
u[12] = _mm_add_epi32(u[12], k__DCT_CONST_ROUNDING);
u[13] = _mm_add_epi32(u[13], k__DCT_CONST_ROUNDING);
u[14] = _mm_add_epi32(u[14], k__DCT_CONST_ROUNDING);
u[15] = _mm_add_epi32(u[15], k__DCT_CONST_ROUNDING);
v[0] = _mm_srai_epi32(u[0], DCT_CONST_BITS);
v[1] = _mm_srai_epi32(u[1], DCT_CONST_BITS);
v[2] = _mm_srai_epi32(u[2], DCT_CONST_BITS);
v[3] = _mm_srai_epi32(u[3], DCT_CONST_BITS);
v[4] = _mm_srai_epi32(u[4], DCT_CONST_BITS);
v[5] = _mm_srai_epi32(u[5], DCT_CONST_BITS);
v[6] = _mm_srai_epi32(u[6], DCT_CONST_BITS);
v[7] = _mm_srai_epi32(u[7], DCT_CONST_BITS);
v[8] = _mm_srai_epi32(u[8], DCT_CONST_BITS);
v[9] = _mm_srai_epi32(u[9], DCT_CONST_BITS);
v[10] = _mm_srai_epi32(u[10], DCT_CONST_BITS);
v[11] = _mm_srai_epi32(u[11], DCT_CONST_BITS);
v[12] = _mm_srai_epi32(u[12], DCT_CONST_BITS);
v[13] = _mm_srai_epi32(u[13], DCT_CONST_BITS);
v[14] = _mm_srai_epi32(u[14], DCT_CONST_BITS);
v[15] = _mm_srai_epi32(u[15], DCT_CONST_BITS);
s[0] = _mm_add_epi16(x[0], x[2]);
s[1] = _mm_add_epi16(x[1], x[3]);
s[2] = _mm_sub_epi16(x[0], x[2]);
s[3] = _mm_sub_epi16(x[1], x[3]);
s[4] = _mm_packs_epi32(v[0], v[1]);
s[5] = _mm_packs_epi32(v[2], v[3]);
s[6] = _mm_packs_epi32(v[4], v[5]);
s[7] = _mm_packs_epi32(v[6], v[7]);
s[8] = _mm_add_epi16(x[8], x[10]);
s[9] = _mm_add_epi16(x[9], x[11]);
s[10] = _mm_sub_epi16(x[8], x[10]);
s[11] = _mm_sub_epi16(x[9], x[11]);
s[12] = _mm_packs_epi32(v[8], v[9]);
s[13] = _mm_packs_epi32(v[10], v[11]);
s[14] = _mm_packs_epi32(v[12], v[13]);
s[15] = _mm_packs_epi32(v[14], v[15]);
// stage 4
u[0] = _mm_unpacklo_epi16(s[2], s[3]);
u[1] = _mm_unpackhi_epi16(s[2], s[3]);
u[2] = _mm_unpacklo_epi16(s[6], s[7]);
u[3] = _mm_unpackhi_epi16(s[6], s[7]);
u[4] = _mm_unpacklo_epi16(s[10], s[11]);
u[5] = _mm_unpackhi_epi16(s[10], s[11]);
u[6] = _mm_unpacklo_epi16(s[14], s[15]);
u[7] = _mm_unpackhi_epi16(s[14], s[15]);
v[0] = _mm_madd_epi16(u[0], k__cospi_m16_m16);
v[1] = _mm_madd_epi16(u[1], k__cospi_m16_m16);
v[2] = _mm_madd_epi16(u[0], k__cospi_p16_m16);
v[3] = _mm_madd_epi16(u[1], k__cospi_p16_m16);
v[4] = _mm_madd_epi16(u[2], k__cospi_p16_p16);
v[5] = _mm_madd_epi16(u[3], k__cospi_p16_p16);
v[6] = _mm_madd_epi16(u[2], k__cospi_m16_p16);
v[7] = _mm_madd_epi16(u[3], k__cospi_m16_p16);
v[8] = _mm_madd_epi16(u[4], k__cospi_p16_p16);
v[9] = _mm_madd_epi16(u[5], k__cospi_p16_p16);
v[10] = _mm_madd_epi16(u[4], k__cospi_m16_p16);
v[11] = _mm_madd_epi16(u[5], k__cospi_m16_p16);
v[12] = _mm_madd_epi16(u[6], k__cospi_m16_m16);
v[13] = _mm_madd_epi16(u[7], k__cospi_m16_m16);
v[14] = _mm_madd_epi16(u[6], k__cospi_p16_m16);
v[15] = _mm_madd_epi16(u[7], k__cospi_p16_m16);
u[0] = _mm_add_epi32(v[0], k__DCT_CONST_ROUNDING);
u[1] = _mm_add_epi32(v[1], k__DCT_CONST_ROUNDING);
u[2] = _mm_add_epi32(v[2], k__DCT_CONST_ROUNDING);
u[3] = _mm_add_epi32(v[3], k__DCT_CONST_ROUNDING);
u[4] = _mm_add_epi32(v[4], k__DCT_CONST_ROUNDING);
u[5] = _mm_add_epi32(v[5], k__DCT_CONST_ROUNDING);
u[6] = _mm_add_epi32(v[6], k__DCT_CONST_ROUNDING);
u[7] = _mm_add_epi32(v[7], k__DCT_CONST_ROUNDING);
u[8] = _mm_add_epi32(v[8], k__DCT_CONST_ROUNDING);
u[9] = _mm_add_epi32(v[9], k__DCT_CONST_ROUNDING);
u[10] = _mm_add_epi32(v[10], k__DCT_CONST_ROUNDING);
u[11] = _mm_add_epi32(v[11], k__DCT_CONST_ROUNDING);
u[12] = _mm_add_epi32(v[12], k__DCT_CONST_ROUNDING);
u[13] = _mm_add_epi32(v[13], k__DCT_CONST_ROUNDING);
u[14] = _mm_add_epi32(v[14], k__DCT_CONST_ROUNDING);
u[15] = _mm_add_epi32(v[15], k__DCT_CONST_ROUNDING);
v[0] = _mm_srai_epi32(u[0], DCT_CONST_BITS);
v[1] = _mm_srai_epi32(u[1], DCT_CONST_BITS);
v[2] = _mm_srai_epi32(u[2], DCT_CONST_BITS);
v[3] = _mm_srai_epi32(u[3], DCT_CONST_BITS);
v[4] = _mm_srai_epi32(u[4], DCT_CONST_BITS);
v[5] = _mm_srai_epi32(u[5], DCT_CONST_BITS);
v[6] = _mm_srai_epi32(u[6], DCT_CONST_BITS);
v[7] = _mm_srai_epi32(u[7], DCT_CONST_BITS);
v[8] = _mm_srai_epi32(u[8], DCT_CONST_BITS);
v[9] = _mm_srai_epi32(u[9], DCT_CONST_BITS);
v[10] = _mm_srai_epi32(u[10], DCT_CONST_BITS);
v[11] = _mm_srai_epi32(u[11], DCT_CONST_BITS);
v[12] = _mm_srai_epi32(u[12], DCT_CONST_BITS);
v[13] = _mm_srai_epi32(u[13], DCT_CONST_BITS);
v[14] = _mm_srai_epi32(u[14], DCT_CONST_BITS);
v[15] = _mm_srai_epi32(u[15], DCT_CONST_BITS);
in[0] = s[0];
in[1] = _mm_sub_epi16(kZero, s[8]);
in[2] = s[12];
in[3] = _mm_sub_epi16(kZero, s[4]);
in[4] = _mm_packs_epi32(v[4], v[5]);
in[5] = _mm_packs_epi32(v[12], v[13]);
in[6] = _mm_packs_epi32(v[8], v[9]);
in[7] = _mm_packs_epi32(v[0], v[1]);
in[8] = _mm_packs_epi32(v[2], v[3]);
in[9] = _mm_packs_epi32(v[10], v[11]);
in[10] = _mm_packs_epi32(v[14], v[15]);
in[11] = _mm_packs_epi32(v[6], v[7]);
in[12] = s[5];
in[13] = _mm_sub_epi16(kZero, s[13]);
in[14] = s[9];
in[15] = _mm_sub_epi16(kZero, s[1]);
}
void idct16_8col(__m128i *in) {
const __m128i k__cospi_p30_m02 = pair_set_epi16(cospi_30_64, -cospi_2_64);
const __m128i k__cospi_p02_p30 = pair_set_epi16(cospi_2_64, cospi_30_64);
const __m128i k__cospi_p14_m18 = pair_set_epi16(cospi_14_64, -cospi_18_64);
const __m128i k__cospi_p18_p14 = pair_set_epi16(cospi_18_64, cospi_14_64);
const __m128i k__cospi_p22_m10 = pair_set_epi16(cospi_22_64, -cospi_10_64);
const __m128i k__cospi_p10_p22 = pair_set_epi16(cospi_10_64, cospi_22_64);
const __m128i k__cospi_p06_m26 = pair_set_epi16(cospi_6_64, -cospi_26_64);
const __m128i k__cospi_p26_p06 = pair_set_epi16(cospi_26_64, cospi_6_64);
const __m128i k__cospi_p28_m04 = pair_set_epi16(cospi_28_64, -cospi_4_64);
const __m128i k__cospi_p04_p28 = pair_set_epi16(cospi_4_64, cospi_28_64);
const __m128i k__cospi_p12_m20 = pair_set_epi16(cospi_12_64, -cospi_20_64);
const __m128i k__cospi_p20_p12 = pair_set_epi16(cospi_20_64, cospi_12_64);
const __m128i k__cospi_p16_p16 = _mm_set1_epi16((int16_t)cospi_16_64);
const __m128i k__cospi_p16_m16 = pair_set_epi16(cospi_16_64, -cospi_16_64);
const __m128i k__cospi_p24_m08 = pair_set_epi16(cospi_24_64, -cospi_8_64);
const __m128i k__cospi_p08_p24 = pair_set_epi16(cospi_8_64, cospi_24_64);
const __m128i k__cospi_m08_p24 = pair_set_epi16(-cospi_8_64, cospi_24_64);
const __m128i k__cospi_p24_p08 = pair_set_epi16(cospi_24_64, cospi_8_64);
const __m128i k__cospi_m24_m08 = pair_set_epi16(-cospi_24_64, -cospi_8_64);
const __m128i k__cospi_m16_p16 = pair_set_epi16(-cospi_16_64, cospi_16_64);
const __m128i k__DCT_CONST_ROUNDING = _mm_set1_epi32(DCT_CONST_ROUNDING);
__m128i v[16], u[16], s[16], t[16];
// stage 1
s[0] = in[0];
s[1] = in[8];
s[2] = in[4];
s[3] = in[12];
s[4] = in[2];
s[5] = in[10];
s[6] = in[6];
s[7] = in[14];
s[8] = in[1];
s[9] = in[9];
s[10] = in[5];
s[11] = in[13];
s[12] = in[3];
s[13] = in[11];
s[14] = in[7];
s[15] = in[15];
// stage 2
u[0] = _mm_unpacklo_epi16(s[8], s[15]);
u[1] = _mm_unpackhi_epi16(s[8], s[15]);
u[2] = _mm_unpacklo_epi16(s[9], s[14]);
u[3] = _mm_unpackhi_epi16(s[9], s[14]);
u[4] = _mm_unpacklo_epi16(s[10], s[13]);
u[5] = _mm_unpackhi_epi16(s[10], s[13]);
u[6] = _mm_unpacklo_epi16(s[11], s[12]);
u[7] = _mm_unpackhi_epi16(s[11], s[12]);
v[0] = _mm_madd_epi16(u[0], k__cospi_p30_m02);
v[1] = _mm_madd_epi16(u[1], k__cospi_p30_m02);
v[2] = _mm_madd_epi16(u[0], k__cospi_p02_p30);
v[3] = _mm_madd_epi16(u[1], k__cospi_p02_p30);
v[4] = _mm_madd_epi16(u[2], k__cospi_p14_m18);
v[5] = _mm_madd_epi16(u[3], k__cospi_p14_m18);
v[6] = _mm_madd_epi16(u[2], k__cospi_p18_p14);
v[7] = _mm_madd_epi16(u[3], k__cospi_p18_p14);
v[8] = _mm_madd_epi16(u[4], k__cospi_p22_m10);
v[9] = _mm_madd_epi16(u[5], k__cospi_p22_m10);
v[10] = _mm_madd_epi16(u[4], k__cospi_p10_p22);
v[11] = _mm_madd_epi16(u[5], k__cospi_p10_p22);
v[12] = _mm_madd_epi16(u[6], k__cospi_p06_m26);
v[13] = _mm_madd_epi16(u[7], k__cospi_p06_m26);
v[14] = _mm_madd_epi16(u[6], k__cospi_p26_p06);
v[15] = _mm_madd_epi16(u[7], k__cospi_p26_p06);
u[0] = _mm_add_epi32(v[0], k__DCT_CONST_ROUNDING);
u[1] = _mm_add_epi32(v[1], k__DCT_CONST_ROUNDING);
u[2] = _mm_add_epi32(v[2], k__DCT_CONST_ROUNDING);
u[3] = _mm_add_epi32(v[3], k__DCT_CONST_ROUNDING);
u[4] = _mm_add_epi32(v[4], k__DCT_CONST_ROUNDING);
u[5] = _mm_add_epi32(v[5], k__DCT_CONST_ROUNDING);
u[6] = _mm_add_epi32(v[6], k__DCT_CONST_ROUNDING);
u[7] = _mm_add_epi32(v[7], k__DCT_CONST_ROUNDING);
u[8] = _mm_add_epi32(v[8], k__DCT_CONST_ROUNDING);
u[9] = _mm_add_epi32(v[9], k__DCT_CONST_ROUNDING);
u[10] = _mm_add_epi32(v[10], k__DCT_CONST_ROUNDING);
u[11] = _mm_add_epi32(v[11], k__DCT_CONST_ROUNDING);
u[12] = _mm_add_epi32(v[12], k__DCT_CONST_ROUNDING);
u[13] = _mm_add_epi32(v[13], k__DCT_CONST_ROUNDING);
u[14] = _mm_add_epi32(v[14], k__DCT_CONST_ROUNDING);
u[15] = _mm_add_epi32(v[15], k__DCT_CONST_ROUNDING);
u[0] = _mm_srai_epi32(u[0], DCT_CONST_BITS);
u[1] = _mm_srai_epi32(u[1], DCT_CONST_BITS);
u[2] = _mm_srai_epi32(u[2], DCT_CONST_BITS);
u[3] = _mm_srai_epi32(u[3], DCT_CONST_BITS);
u[4] = _mm_srai_epi32(u[4], DCT_CONST_BITS);
u[5] = _mm_srai_epi32(u[5], DCT_CONST_BITS);
u[6] = _mm_srai_epi32(u[6], DCT_CONST_BITS);
u[7] = _mm_srai_epi32(u[7], DCT_CONST_BITS);
u[8] = _mm_srai_epi32(u[8], DCT_CONST_BITS);
u[9] = _mm_srai_epi32(u[9], DCT_CONST_BITS);
u[10] = _mm_srai_epi32(u[10], DCT_CONST_BITS);
u[11] = _mm_srai_epi32(u[11], DCT_CONST_BITS);
u[12] = _mm_srai_epi32(u[12], DCT_CONST_BITS);
u[13] = _mm_srai_epi32(u[13], DCT_CONST_BITS);
u[14] = _mm_srai_epi32(u[14], DCT_CONST_BITS);
u[15] = _mm_srai_epi32(u[15], DCT_CONST_BITS);
s[8] = _mm_packs_epi32(u[0], u[1]);
s[15] = _mm_packs_epi32(u[2], u[3]);
s[9] = _mm_packs_epi32(u[4], u[5]);
s[14] = _mm_packs_epi32(u[6], u[7]);
s[10] = _mm_packs_epi32(u[8], u[9]);
s[13] = _mm_packs_epi32(u[10], u[11]);
s[11] = _mm_packs_epi32(u[12], u[13]);
s[12] = _mm_packs_epi32(u[14], u[15]);
// stage 3
t[0] = s[0];
t[1] = s[1];
t[2] = s[2];
t[3] = s[3];
u[0] = _mm_unpacklo_epi16(s[4], s[7]);
u[1] = _mm_unpackhi_epi16(s[4], s[7]);
u[2] = _mm_unpacklo_epi16(s[5], s[6]);
u[3] = _mm_unpackhi_epi16(s[5], s[6]);
v[0] = _mm_madd_epi16(u[0], k__cospi_p28_m04);
v[1] = _mm_madd_epi16(u[1], k__cospi_p28_m04);
v[2] = _mm_madd_epi16(u[0], k__cospi_p04_p28);
v[3] = _mm_madd_epi16(u[1], k__cospi_p04_p28);
v[4] = _mm_madd_epi16(u[2], k__cospi_p12_m20);
v[5] = _mm_madd_epi16(u[3], k__cospi_p12_m20);
v[6] = _mm_madd_epi16(u[2], k__cospi_p20_p12);
v[7] = _mm_madd_epi16(u[3], k__cospi_p20_p12);
u[0] = _mm_add_epi32(v[0], k__DCT_CONST_ROUNDING);
u[1] = _mm_add_epi32(v[1], k__DCT_CONST_ROUNDING);
u[2] = _mm_add_epi32(v[2], k__DCT_CONST_ROUNDING);
u[3] = _mm_add_epi32(v[3], k__DCT_CONST_ROUNDING);
u[4] = _mm_add_epi32(v[4], k__DCT_CONST_ROUNDING);
u[5] = _mm_add_epi32(v[5], k__DCT_CONST_ROUNDING);
u[6] = _mm_add_epi32(v[6], k__DCT_CONST_ROUNDING);
u[7] = _mm_add_epi32(v[7], k__DCT_CONST_ROUNDING);
u[0] = _mm_srai_epi32(u[0], DCT_CONST_BITS);
u[1] = _mm_srai_epi32(u[1], DCT_CONST_BITS);
u[2] = _mm_srai_epi32(u[2], DCT_CONST_BITS);
u[3] = _mm_srai_epi32(u[3], DCT_CONST_BITS);
u[4] = _mm_srai_epi32(u[4], DCT_CONST_BITS);
u[5] = _mm_srai_epi32(u[5], DCT_CONST_BITS);
u[6] = _mm_srai_epi32(u[6], DCT_CONST_BITS);
u[7] = _mm_srai_epi32(u[7], DCT_CONST_BITS);
t[4] = _mm_packs_epi32(u[0], u[1]);
t[7] = _mm_packs_epi32(u[2], u[3]);
t[5] = _mm_packs_epi32(u[4], u[5]);
t[6] = _mm_packs_epi32(u[6], u[7]);
t[8] = _mm_add_epi16(s[8], s[9]);
t[9] = _mm_sub_epi16(s[8], s[9]);
t[10] = _mm_sub_epi16(s[11], s[10]);
t[11] = _mm_add_epi16(s[10], s[11]);
t[12] = _mm_add_epi16(s[12], s[13]);
t[13] = _mm_sub_epi16(s[12], s[13]);
t[14] = _mm_sub_epi16(s[15], s[14]);
t[15] = _mm_add_epi16(s[14], s[15]);
// stage 4
u[0] = _mm_unpacklo_epi16(t[0], t[1]);
u[1] = _mm_unpackhi_epi16(t[0], t[1]);
u[2] = _mm_unpacklo_epi16(t[2], t[3]);
u[3] = _mm_unpackhi_epi16(t[2], t[3]);
u[4] = _mm_unpacklo_epi16(t[9], t[14]);
u[5] = _mm_unpackhi_epi16(t[9], t[14]);
u[6] = _mm_unpacklo_epi16(t[10], t[13]);
u[7] = _mm_unpackhi_epi16(t[10], t[13]);
v[0] = _mm_madd_epi16(u[0], k__cospi_p16_p16);
v[1] = _mm_madd_epi16(u[1], k__cospi_p16_p16);
v[2] = _mm_madd_epi16(u[0], k__cospi_p16_m16);
v[3] = _mm_madd_epi16(u[1], k__cospi_p16_m16);
v[4] = _mm_madd_epi16(u[2], k__cospi_p24_m08);
v[5] = _mm_madd_epi16(u[3], k__cospi_p24_m08);
v[6] = _mm_madd_epi16(u[2], k__cospi_p08_p24);
v[7] = _mm_madd_epi16(u[3], k__cospi_p08_p24);
v[8] = _mm_madd_epi16(u[4], k__cospi_m08_p24);
v[9] = _mm_madd_epi16(u[5], k__cospi_m08_p24);
v[10] = _mm_madd_epi16(u[4], k__cospi_p24_p08);
v[11] = _mm_madd_epi16(u[5], k__cospi_p24_p08);
v[12] = _mm_madd_epi16(u[6], k__cospi_m24_m08);
v[13] = _mm_madd_epi16(u[7], k__cospi_m24_m08);
v[14] = _mm_madd_epi16(u[6], k__cospi_m08_p24);
v[15] = _mm_madd_epi16(u[7], k__cospi_m08_p24);
u[0] = _mm_add_epi32(v[0], k__DCT_CONST_ROUNDING);
u[1] = _mm_add_epi32(v[1], k__DCT_CONST_ROUNDING);
u[2] = _mm_add_epi32(v[2], k__DCT_CONST_ROUNDING);
u[3] = _mm_add_epi32(v[3], k__DCT_CONST_ROUNDING);
u[4] = _mm_add_epi32(v[4], k__DCT_CONST_ROUNDING);
u[5] = _mm_add_epi32(v[5], k__DCT_CONST_ROUNDING);
u[6] = _mm_add_epi32(v[6], k__DCT_CONST_ROUNDING);
u[7] = _mm_add_epi32(v[7], k__DCT_CONST_ROUNDING);
u[8] = _mm_add_epi32(v[8], k__DCT_CONST_ROUNDING);
u[9] = _mm_add_epi32(v[9], k__DCT_CONST_ROUNDING);
u[10] = _mm_add_epi32(v[10], k__DCT_CONST_ROUNDING);
u[11] = _mm_add_epi32(v[11], k__DCT_CONST_ROUNDING);
u[12] = _mm_add_epi32(v[12], k__DCT_CONST_ROUNDING);
u[13] = _mm_add_epi32(v[13], k__DCT_CONST_ROUNDING);
u[14] = _mm_add_epi32(v[14], k__DCT_CONST_ROUNDING);
u[15] = _mm_add_epi32(v[15], k__DCT_CONST_ROUNDING);
u[0] = _mm_srai_epi32(u[0], DCT_CONST_BITS);
u[1] = _mm_srai_epi32(u[1], DCT_CONST_BITS);
u[2] = _mm_srai_epi32(u[2], DCT_CONST_BITS);
u[3] = _mm_srai_epi32(u[3], DCT_CONST_BITS);
u[4] = _mm_srai_epi32(u[4], DCT_CONST_BITS);
u[5] = _mm_srai_epi32(u[5], DCT_CONST_BITS);
u[6] = _mm_srai_epi32(u[6], DCT_CONST_BITS);
u[7] = _mm_srai_epi32(u[7], DCT_CONST_BITS);
u[8] = _mm_srai_epi32(u[8], DCT_CONST_BITS);
u[9] = _mm_srai_epi32(u[9], DCT_CONST_BITS);
u[10] = _mm_srai_epi32(u[10], DCT_CONST_BITS);
u[11] = _mm_srai_epi32(u[11], DCT_CONST_BITS);
u[12] = _mm_srai_epi32(u[12], DCT_CONST_BITS);
u[13] = _mm_srai_epi32(u[13], DCT_CONST_BITS);
u[14] = _mm_srai_epi32(u[14], DCT_CONST_BITS);
u[15] = _mm_srai_epi32(u[15], DCT_CONST_BITS);
s[0] = _mm_packs_epi32(u[0], u[1]);
s[1] = _mm_packs_epi32(u[2], u[3]);
s[2] = _mm_packs_epi32(u[4], u[5]);
s[3] = _mm_packs_epi32(u[6], u[7]);
s[4] = _mm_add_epi16(t[4], t[5]);
s[5] = _mm_sub_epi16(t[4], t[5]);
s[6] = _mm_sub_epi16(t[7], t[6]);
s[7] = _mm_add_epi16(t[6], t[7]);
s[8] = t[8];
s[15] = t[15];
s[9] = _mm_packs_epi32(u[8], u[9]);
s[14] = _mm_packs_epi32(u[10], u[11]);
s[10] = _mm_packs_epi32(u[12], u[13]);
s[13] = _mm_packs_epi32(u[14], u[15]);
s[11] = t[11];
s[12] = t[12];
// stage 5
t[0] = _mm_add_epi16(s[0], s[3]);
t[1] = _mm_add_epi16(s[1], s[2]);
t[2] = _mm_sub_epi16(s[1], s[2]);
t[3] = _mm_sub_epi16(s[0], s[3]);
t[4] = s[4];
t[7] = s[7];
u[0] = _mm_unpacklo_epi16(s[5], s[6]);
u[1] = _mm_unpackhi_epi16(s[5], s[6]);
v[0] = _mm_madd_epi16(u[0], k__cospi_m16_p16);
v[1] = _mm_madd_epi16(u[1], k__cospi_m16_p16);
v[2] = _mm_madd_epi16(u[0], k__cospi_p16_p16);
v[3] = _mm_madd_epi16(u[1], k__cospi_p16_p16);
u[0] = _mm_add_epi32(v[0], k__DCT_CONST_ROUNDING);
u[1] = _mm_add_epi32(v[1], k__DCT_CONST_ROUNDING);
u[2] = _mm_add_epi32(v[2], k__DCT_CONST_ROUNDING);
u[3] = _mm_add_epi32(v[3], k__DCT_CONST_ROUNDING);
u[0] = _mm_srai_epi32(u[0], DCT_CONST_BITS);
u[1] = _mm_srai_epi32(u[1], DCT_CONST_BITS);
u[2] = _mm_srai_epi32(u[2], DCT_CONST_BITS);
u[3] = _mm_srai_epi32(u[3], DCT_CONST_BITS);
t[5] = _mm_packs_epi32(u[0], u[1]);
t[6] = _mm_packs_epi32(u[2], u[3]);
t[8] = _mm_add_epi16(s[8], s[11]);
t[9] = _mm_add_epi16(s[9], s[10]);
t[10] = _mm_sub_epi16(s[9], s[10]);
t[11] = _mm_sub_epi16(s[8], s[11]);
t[12] = _mm_sub_epi16(s[15], s[12]);
t[13] = _mm_sub_epi16(s[14], s[13]);
t[14] = _mm_add_epi16(s[13], s[14]);
t[15] = _mm_add_epi16(s[12], s[15]);
// stage 6
s[0] = _mm_add_epi16(t[0], t[7]);
s[1] = _mm_add_epi16(t[1], t[6]);
s[2] = _mm_add_epi16(t[2], t[5]);
s[3] = _mm_add_epi16(t[3], t[4]);
s[4] = _mm_sub_epi16(t[3], t[4]);
s[5] = _mm_sub_epi16(t[2], t[5]);
s[6] = _mm_sub_epi16(t[1], t[6]);
s[7] = _mm_sub_epi16(t[0], t[7]);
s[8] = t[8];
s[9] = t[9];
u[0] = _mm_unpacklo_epi16(t[10], t[13]);
u[1] = _mm_unpackhi_epi16(t[10], t[13]);
u[2] = _mm_unpacklo_epi16(t[11], t[12]);
u[3] = _mm_unpackhi_epi16(t[11], t[12]);
v[0] = _mm_madd_epi16(u[0], k__cospi_m16_p16);
v[1] = _mm_madd_epi16(u[1], k__cospi_m16_p16);
v[2] = _mm_madd_epi16(u[0], k__cospi_p16_p16);
v[3] = _mm_madd_epi16(u[1], k__cospi_p16_p16);
v[4] = _mm_madd_epi16(u[2], k__cospi_m16_p16);
v[5] = _mm_madd_epi16(u[3], k__cospi_m16_p16);
v[6] = _mm_madd_epi16(u[2], k__cospi_p16_p16);
v[7] = _mm_madd_epi16(u[3], k__cospi_p16_p16);
u[0] = _mm_add_epi32(v[0], k__DCT_CONST_ROUNDING);
u[1] = _mm_add_epi32(v[1], k__DCT_CONST_ROUNDING);
u[2] = _mm_add_epi32(v[2], k__DCT_CONST_ROUNDING);
u[3] = _mm_add_epi32(v[3], k__DCT_CONST_ROUNDING);
u[4] = _mm_add_epi32(v[4], k__DCT_CONST_ROUNDING);
u[5] = _mm_add_epi32(v[5], k__DCT_CONST_ROUNDING);
u[6] = _mm_add_epi32(v[6], k__DCT_CONST_ROUNDING);
u[7] = _mm_add_epi32(v[7], k__DCT_CONST_ROUNDING);
u[0] = _mm_srai_epi32(u[0], DCT_CONST_BITS);
u[1] = _mm_srai_epi32(u[1], DCT_CONST_BITS);
u[2] = _mm_srai_epi32(u[2], DCT_CONST_BITS);
u[3] = _mm_srai_epi32(u[3], DCT_CONST_BITS);
u[4] = _mm_srai_epi32(u[4], DCT_CONST_BITS);
u[5] = _mm_srai_epi32(u[5], DCT_CONST_BITS);
u[6] = _mm_srai_epi32(u[6], DCT_CONST_BITS);
u[7] = _mm_srai_epi32(u[7], DCT_CONST_BITS);
s[10] = _mm_packs_epi32(u[0], u[1]);
s[13] = _mm_packs_epi32(u[2], u[3]);
s[11] = _mm_packs_epi32(u[4], u[5]);
s[12] = _mm_packs_epi32(u[6], u[7]);
s[14] = t[14];
s[15] = t[15];
// stage 7
in[0] = _mm_add_epi16(s[0], s[15]);
in[1] = _mm_add_epi16(s[1], s[14]);
in[2] = _mm_add_epi16(s[2], s[13]);
in[3] = _mm_add_epi16(s[3], s[12]);
in[4] = _mm_add_epi16(s[4], s[11]);
in[5] = _mm_add_epi16(s[5], s[10]);
in[6] = _mm_add_epi16(s[6], s[9]);
in[7] = _mm_add_epi16(s[7], s[8]);
in[8] = _mm_sub_epi16(s[7], s[8]);
in[9] = _mm_sub_epi16(s[6], s[9]);
in[10] = _mm_sub_epi16(s[5], s[10]);
in[11] = _mm_sub_epi16(s[4], s[11]);
in[12] = _mm_sub_epi16(s[3], s[12]);
in[13] = _mm_sub_epi16(s[2], s[13]);
in[14] = _mm_sub_epi16(s[1], s[14]);
in[15] = _mm_sub_epi16(s[0], s[15]);
}
void aom_idct16_sse2(__m128i *in0, __m128i *in1) {
array_transpose_16x16(in0, in1);
idct16_8col(in0);
idct16_8col(in1);
}
void aom_iadst16_sse2(__m128i *in0, __m128i *in1) {
array_transpose_16x16(in0, in1);
iadst16_8col(in0);
iadst16_8col(in1);
}
void aom_idct16x16_10_add_sse2(const tran_low_t *input, uint8_t *dest,
int stride) {
const __m128i rounding = _mm_set1_epi32(DCT_CONST_ROUNDING);
const __m128i final_rounding = _mm_set1_epi16(1 << 5);
const __m128i zero = _mm_setzero_si128();
const __m128i stg2_0 = pair_set_epi16(cospi_30_64, -cospi_2_64);
const __m128i stg2_1 = pair_set_epi16(cospi_2_64, cospi_30_64);
const __m128i stg2_6 = pair_set_epi16(cospi_6_64, -cospi_26_64);
const __m128i stg2_7 = pair_set_epi16(cospi_26_64, cospi_6_64);
const __m128i stg3_0 = pair_set_epi16(cospi_28_64, -cospi_4_64);
const __m128i stg3_1 = pair_set_epi16(cospi_4_64, cospi_28_64);
const __m128i stg4_0 = pair_set_epi16(cospi_16_64, cospi_16_64);
const __m128i stg4_1 = pair_set_epi16(cospi_16_64, -cospi_16_64);
const __m128i stg4_4 = pair_set_epi16(-cospi_8_64, cospi_24_64);
const __m128i stg4_5 = pair_set_epi16(cospi_24_64, cospi_8_64);
const __m128i stg4_6 = pair_set_epi16(-cospi_24_64, -cospi_8_64);
const __m128i stg4_7 = pair_set_epi16(-cospi_8_64, cospi_24_64);
const __m128i stg6_0 = pair_set_epi16(-cospi_16_64, cospi_16_64);
__m128i in[16], l[16];
__m128i stp1_0, stp1_1, stp1_2, stp1_3, stp1_4, stp1_5, stp1_6, stp1_8,
stp1_9, stp1_10, stp1_11, stp1_12, stp1_13, stp1_14, stp1_15, stp1_8_0,
stp1_12_0;
__m128i stp2_0, stp2_1, stp2_2, stp2_3, stp2_4, stp2_5, stp2_6, stp2_7,
stp2_8, stp2_9, stp2_10, stp2_11, stp2_12, stp2_13, stp2_14;
__m128i tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
int i;
// First 1-D inverse DCT
// Load input data.
in[0] = load_input_data(input);
in[1] = load_input_data(input + 8 * 2);
in[2] = load_input_data(input + 8 * 4);
in[3] = load_input_data(input + 8 * 6);
TRANSPOSE_8X4(in[0], in[1], in[2], in[3], in[0], in[1]);
// Stage2
{
const __m128i lo_1_15 = _mm_unpackhi_epi16(in[0], zero);
const __m128i lo_13_3 = _mm_unpackhi_epi16(zero, in[1]);
tmp0 = _mm_madd_epi16(lo_1_15, stg2_0);
tmp2 = _mm_madd_epi16(lo_1_15, stg2_1);
tmp5 = _mm_madd_epi16(lo_13_3, stg2_6);
tmp7 = _mm_madd_epi16(lo_13_3, stg2_7);
tmp0 = _mm_add_epi32(tmp0, rounding);
tmp2 = _mm_add_epi32(tmp2, rounding);
tmp5 = _mm_add_epi32(tmp5, rounding);
tmp7 = _mm_add_epi32(tmp7, rounding);
tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS);
tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS);
tmp5 = _mm_srai_epi32(tmp5, DCT_CONST_BITS);
tmp7 = _mm_srai_epi32(tmp7, DCT_CONST_BITS);
stp2_8 = _mm_packs_epi32(tmp0, tmp2);
stp2_11 = _mm_packs_epi32(tmp5, tmp7);
}
// Stage3
{
const __m128i lo_2_14 = _mm_unpacklo_epi16(in[1], zero);
tmp0 = _mm_madd_epi16(lo_2_14, stg3_0);
tmp2 = _mm_madd_epi16(lo_2_14, stg3_1);
tmp0 = _mm_add_epi32(tmp0, rounding);
tmp2 = _mm_add_epi32(tmp2, rounding);
tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS);
tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS);
stp1_13 = _mm_unpackhi_epi64(stp2_11, zero);
stp1_14 = _mm_unpackhi_epi64(stp2_8, zero);
stp1_4 = _mm_packs_epi32(tmp0, tmp2);
}
// Stage4
{
const __m128i lo_0_8 = _mm_unpacklo_epi16(in[0], zero);
const __m128i lo_9_14 = _mm_unpacklo_epi16(stp2_8, stp1_14);
const __m128i lo_10_13 = _mm_unpacklo_epi16(stp2_11, stp1_13);
tmp0 = _mm_madd_epi16(lo_0_8, stg4_0);
tmp2 = _mm_madd_epi16(lo_0_8, stg4_1);
tmp1 = _mm_madd_epi16(lo_9_14, stg4_4);
tmp3 = _mm_madd_epi16(lo_9_14, stg4_5);
tmp5 = _mm_madd_epi16(lo_10_13, stg4_6);
tmp7 = _mm_madd_epi16(lo_10_13, stg4_7);
tmp0 = _mm_add_epi32(tmp0, rounding);
tmp2 = _mm_add_epi32(tmp2, rounding);
tmp1 = _mm_add_epi32(tmp1, rounding);
tmp3 = _mm_add_epi32(tmp3, rounding);
tmp5 = _mm_add_epi32(tmp5, rounding);
tmp7 = _mm_add_epi32(tmp7, rounding);
tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS);
tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS);
tmp1 = _mm_srai_epi32(tmp1, DCT_CONST_BITS);
tmp3 = _mm_srai_epi32(tmp3, DCT_CONST_BITS);
tmp5 = _mm_srai_epi32(tmp5, DCT_CONST_BITS);
tmp7 = _mm_srai_epi32(tmp7, DCT_CONST_BITS);
stp1_0 = _mm_packs_epi32(tmp0, tmp0);
stp1_1 = _mm_packs_epi32(tmp2, tmp2);
stp2_9 = _mm_packs_epi32(tmp1, tmp3);
stp2_10 = _mm_packs_epi32(tmp5, tmp7);
stp2_6 = _mm_unpackhi_epi64(stp1_4, zero);
}
// Stage5 and Stage6
{
tmp0 = _mm_add_epi16(stp2_8, stp2_11);
tmp1 = _mm_sub_epi16(stp2_8, stp2_11);
tmp2 = _mm_add_epi16(stp2_9, stp2_10);
tmp3 = _mm_sub_epi16(stp2_9, stp2_10);
stp1_9 = _mm_unpacklo_epi64(tmp2, zero);
stp1_10 = _mm_unpacklo_epi64(tmp3, zero);
stp1_8 = _mm_unpacklo_epi64(tmp0, zero);
stp1_11 = _mm_unpacklo_epi64(tmp1, zero);
stp1_13 = _mm_unpackhi_epi64(tmp3, zero);
stp1_14 = _mm_unpackhi_epi64(tmp2, zero);
stp1_12 = _mm_unpackhi_epi64(tmp1, zero);
stp1_15 = _mm_unpackhi_epi64(tmp0, zero);
}
// Stage6
{
const __m128i lo_6_5 = _mm_unpacklo_epi16(stp2_6, stp1_4);
const __m128i lo_10_13 = _mm_unpacklo_epi16(stp1_10, stp1_13);
const __m128i lo_11_12 = _mm_unpacklo_epi16(stp1_11, stp1_12);
tmp1 = _mm_madd_epi16(lo_6_5, stg4_1);
tmp3 = _mm_madd_epi16(lo_6_5, stg4_0);
tmp0 = _mm_madd_epi16(lo_10_13, stg6_0);
tmp2 = _mm_madd_epi16(lo_10_13, stg4_0);
tmp4 = _mm_madd_epi16(lo_11_12, stg6_0);
tmp6 = _mm_madd_epi16(lo_11_12, stg4_0);
tmp1 = _mm_add_epi32(tmp1, rounding);
tmp3 = _mm_add_epi32(tmp3, rounding);
tmp0 = _mm_add_epi32(tmp0, rounding);
tmp2 = _mm_add_epi32(tmp2, rounding);
tmp4 = _mm_add_epi32(tmp4, rounding);
tmp6 = _mm_add_epi32(tmp6, rounding);
tmp1 = _mm_srai_epi32(tmp1, DCT_CONST_BITS);
tmp3 = _mm_srai_epi32(tmp3, DCT_CONST_BITS);
tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS);
tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS);
tmp4 = _mm_srai_epi32(tmp4, DCT_CONST_BITS);
tmp6 = _mm_srai_epi32(tmp6, DCT_CONST_BITS);
stp1_6 = _mm_packs_epi32(tmp3, tmp1);
stp2_10 = _mm_packs_epi32(tmp0, zero);
stp2_13 = _mm_packs_epi32(tmp2, zero);
stp2_11 = _mm_packs_epi32(tmp4, zero);
stp2_12 = _mm_packs_epi32(tmp6, zero);
tmp0 = _mm_add_epi16(stp1_0, stp1_4);
tmp1 = _mm_sub_epi16(stp1_0, stp1_4);
tmp2 = _mm_add_epi16(stp1_1, stp1_6);
tmp3 = _mm_sub_epi16(stp1_1, stp1_6);
stp2_0 = _mm_unpackhi_epi64(tmp0, zero);
stp2_1 = _mm_unpacklo_epi64(tmp2, zero);
stp2_2 = _mm_unpackhi_epi64(tmp2, zero);
stp2_3 = _mm_unpacklo_epi64(tmp0, zero);
stp2_4 = _mm_unpacklo_epi64(tmp1, zero);
stp2_5 = _mm_unpackhi_epi64(tmp3, zero);
stp2_6 = _mm_unpacklo_epi64(tmp3, zero);
stp2_7 = _mm_unpackhi_epi64(tmp1, zero);
}
// Stage7. Left 8x16 only.
l[0] = _mm_add_epi16(stp2_0, stp1_15);
l[1] = _mm_add_epi16(stp2_1, stp1_14);
l[2] = _mm_add_epi16(stp2_2, stp2_13);
l[3] = _mm_add_epi16(stp2_3, stp2_12);
l[4] = _mm_add_epi16(stp2_4, stp2_11);
l[5] = _mm_add_epi16(stp2_5, stp2_10);
l[6] = _mm_add_epi16(stp2_6, stp1_9);
l[7] = _mm_add_epi16(stp2_7, stp1_8);
l[8] = _mm_sub_epi16(stp2_7, stp1_8);
l[9] = _mm_sub_epi16(stp2_6, stp1_9);
l[10] = _mm_sub_epi16(stp2_5, stp2_10);
l[11] = _mm_sub_epi16(stp2_4, stp2_11);
l[12] = _mm_sub_epi16(stp2_3, stp2_12);
l[13] = _mm_sub_epi16(stp2_2, stp2_13);
l[14] = _mm_sub_epi16(stp2_1, stp1_14);
l[15] = _mm_sub_epi16(stp2_0, stp1_15);
// Second 1-D inverse transform, performed per 8x16 block
for (i = 0; i < 2; i++) {
int j;
array_transpose_4X8(l + 8 * i, in);
IDCT16_10
// Stage7
in[0] = _mm_add_epi16(stp2_0, stp1_15);
in[1] = _mm_add_epi16(stp2_1, stp1_14);
in[2] = _mm_add_epi16(stp2_2, stp2_13);
in[3] = _mm_add_epi16(stp2_3, stp2_12);
in[4] = _mm_add_epi16(stp2_4, stp2_11);
in[5] = _mm_add_epi16(stp2_5, stp2_10);
in[6] = _mm_add_epi16(stp2_6, stp1_9);
in[7] = _mm_add_epi16(stp2_7, stp1_8);
in[8] = _mm_sub_epi16(stp2_7, stp1_8);
in[9] = _mm_sub_epi16(stp2_6, stp1_9);
in[10] = _mm_sub_epi16(stp2_5, stp2_10);
in[11] = _mm_sub_epi16(stp2_4, stp2_11);
in[12] = _mm_sub_epi16(stp2_3, stp2_12);
in[13] = _mm_sub_epi16(stp2_2, stp2_13);
in[14] = _mm_sub_epi16(stp2_1, stp1_14);
in[15] = _mm_sub_epi16(stp2_0, stp1_15);
for (j = 0; j < 16; ++j) {
// Final rounding and shift
in[j] = _mm_adds_epi16(in[j], final_rounding);
in[j] = _mm_srai_epi16(in[j], 6);
RECON_AND_STORE(dest + j * stride, in[j]);
}
dest += 8;
}
}
#define LOAD_DQCOEFF(reg, input) \
{ \
reg = load_input_data(input); \
input += 8; \
}
#define IDCT32_34 \
/* Stage1 */ \
{ \
const __m128i lo_1_31 = _mm_unpacklo_epi16(in[1], zero); \
const __m128i hi_1_31 = _mm_unpackhi_epi16(in[1], zero); \
\
const __m128i lo_25_7 = _mm_unpacklo_epi16(zero, in[7]); \
const __m128i hi_25_7 = _mm_unpackhi_epi16(zero, in[7]); \
\
const __m128i lo_5_27 = _mm_unpacklo_epi16(in[5], zero); \
const __m128i hi_5_27 = _mm_unpackhi_epi16(in[5], zero); \
\
const __m128i lo_29_3 = _mm_unpacklo_epi16(zero, in[3]); \
const __m128i hi_29_3 = _mm_unpackhi_epi16(zero, in[3]); \
\
MULTIPLICATION_AND_ADD_2(lo_1_31, hi_1_31, stg1_0, stg1_1, stp1_16, \
stp1_31); \
MULTIPLICATION_AND_ADD_2(lo_25_7, hi_25_7, stg1_6, stg1_7, stp1_19, \
stp1_28); \
MULTIPLICATION_AND_ADD_2(lo_5_27, hi_5_27, stg1_8, stg1_9, stp1_20, \
stp1_27); \
MULTIPLICATION_AND_ADD_2(lo_29_3, hi_29_3, stg1_14, stg1_15, stp1_23, \
stp1_24); \
} \
\
/* Stage2 */ \
{ \
const __m128i lo_2_30 = _mm_unpacklo_epi16(in[2], zero); \
const __m128i hi_2_30 = _mm_unpackhi_epi16(in[2], zero); \
\
const __m128i lo_26_6 = _mm_unpacklo_epi16(zero, in[6]); \
const __m128i hi_26_6 = _mm_unpackhi_epi16(zero, in[6]); \
\
MULTIPLICATION_AND_ADD_2(lo_2_30, hi_2_30, stg2_0, stg2_1, stp2_8, \
stp2_15); \
MULTIPLICATION_AND_ADD_2(lo_26_6, hi_26_6, stg2_6, stg2_7, stp2_11, \
stp2_12); \
\
stp2_16 = stp1_16; \
stp2_19 = stp1_19; \
\
stp2_20 = stp1_20; \
stp2_23 = stp1_23; \
\
stp2_24 = stp1_24; \
stp2_27 = stp1_27; \
\
stp2_28 = stp1_28; \
stp2_31 = stp1_31; \
} \
\
/* Stage3 */ \
{ \
const __m128i lo_4_28 = _mm_unpacklo_epi16(in[4], zero); \
const __m128i hi_4_28 = _mm_unpackhi_epi16(in[4], zero); \
\
const __m128i lo_17_30 = _mm_unpacklo_epi16(stp1_16, stp1_31); \
const __m128i hi_17_30 = _mm_unpackhi_epi16(stp1_16, stp1_31); \
const __m128i lo_18_29 = _mm_unpacklo_epi16(stp1_19, stp1_28); \
const __m128i hi_18_29 = _mm_unpackhi_epi16(stp1_19, stp1_28); \
\
const __m128i lo_21_26 = _mm_unpacklo_epi16(stp1_20, stp1_27); \
const __m128i hi_21_26 = _mm_unpackhi_epi16(stp1_20, stp1_27); \
const __m128i lo_22_25 = _mm_unpacklo_epi16(stp1_23, stp1_24); \
const __m128i hi_22_25 = _mm_unpackhi_epi16(stp1_23, stp2_24); \
\
MULTIPLICATION_AND_ADD_2(lo_4_28, hi_4_28, stg3_0, stg3_1, stp1_4, \
stp1_7); \
\
stp1_8 = stp2_8; \
stp1_11 = stp2_11; \
stp1_12 = stp2_12; \
stp1_15 = stp2_15; \
\
MULTIPLICATION_AND_ADD(lo_17_30, hi_17_30, lo_18_29, hi_18_29, stg3_4, \
stg3_5, stg3_6, stg3_4, stp1_17, stp1_30, stp1_18, \
stp1_29) \
MULTIPLICATION_AND_ADD(lo_21_26, hi_21_26, lo_22_25, hi_22_25, stg3_8, \
stg3_9, stg3_10, stg3_8, stp1_21, stp1_26, stp1_22, \
stp1_25) \
\
stp1_16 = stp2_16; \
stp1_31 = stp2_31; \
stp1_19 = stp2_19; \
stp1_20 = stp2_20; \
stp1_23 = stp2_23; \
stp1_24 = stp2_24; \
stp1_27 = stp2_27; \
stp1_28 = stp2_28; \
} \
\
/* Stage4 */ \
{ \
const __m128i lo_0_16 = _mm_unpacklo_epi16(in[0], zero); \
const __m128i hi_0_16 = _mm_unpackhi_epi16(in[0], zero); \
\
const __m128i lo_9_14 = _mm_unpacklo_epi16(stp2_8, stp2_15); \
const __m128i hi_9_14 = _mm_unpackhi_epi16(stp2_8, stp2_15); \
const __m128i lo_10_13 = _mm_unpacklo_epi16(stp2_11, stp2_12); \
const __m128i hi_10_13 = _mm_unpackhi_epi16(stp2_11, stp2_12); \
\
MULTIPLICATION_AND_ADD_2(lo_0_16, hi_0_16, stg4_0, stg4_1, stp2_0, \
stp2_1); \
\
stp2_4 = stp1_4; \
stp2_5 = stp1_4; \
stp2_6 = stp1_7; \
stp2_7 = stp1_7; \
\
MULTIPLICATION_AND_ADD(lo_9_14, hi_9_14, lo_10_13, hi_10_13, stg4_4, \
stg4_5, stg4_6, stg4_4, stp2_9, stp2_14, stp2_10, \
stp2_13) \
\
stp2_8 = stp1_8; \
stp2_15 = stp1_15; \
stp2_11 = stp1_11; \
stp2_12 = stp1_12; \
\
stp2_16 = _mm_add_epi16(stp1_16, stp1_19); \
stp2_17 = _mm_add_epi16(stp1_17, stp1_18); \
stp2_18 = _mm_sub_epi16(stp1_17, stp1_18); \
stp2_19 = _mm_sub_epi16(stp1_16, stp1_19); \
stp2_20 = _mm_sub_epi16(stp1_23, stp1_20); \
stp2_21 = _mm_sub_epi16(stp1_22, stp1_21); \
stp2_22 = _mm_add_epi16(stp1_22, stp1_21); \
stp2_23 = _mm_add_epi16(stp1_23, stp1_20); \
\
stp2_24 = _mm_add_epi16(stp1_24, stp1_27); \
stp2_25 = _mm_add_epi16(stp1_25, stp1_26); \
stp2_26 = _mm_sub_epi16(stp1_25, stp1_26); \
stp2_27 = _mm_sub_epi16(stp1_24, stp1_27); \
stp2_28 = _mm_sub_epi16(stp1_31, stp1_28); \
stp2_29 = _mm_sub_epi16(stp1_30, stp1_29); \
stp2_30 = _mm_add_epi16(stp1_29, stp1_30); \
stp2_31 = _mm_add_epi16(stp1_28, stp1_31); \
} \
\
/* Stage5 */ \
{ \
const __m128i lo_6_5 = _mm_unpacklo_epi16(stp2_6, stp2_5); \
const __m128i hi_6_5 = _mm_unpackhi_epi16(stp2_6, stp2_5); \
const __m128i lo_18_29 = _mm_unpacklo_epi16(stp2_18, stp2_29); \
const __m128i hi_18_29 = _mm_unpackhi_epi16(stp2_18, stp2_29); \
\
const __m128i lo_19_28 = _mm_unpacklo_epi16(stp2_19, stp2_28); \
const __m128i hi_19_28 = _mm_unpackhi_epi16(stp2_19, stp2_28); \
const __m128i lo_20_27 = _mm_unpacklo_epi16(stp2_20, stp2_27); \
const __m128i hi_20_27 = _mm_unpackhi_epi16(stp2_20, stp2_27); \
\
const __m128i lo_21_26 = _mm_unpacklo_epi16(stp2_21, stp2_26); \
const __m128i hi_21_26 = _mm_unpackhi_epi16(stp2_21, stp2_26); \
\
stp1_0 = stp2_0; \
stp1_1 = stp2_1; \
stp1_2 = stp2_1; \
stp1_3 = stp2_0; \
\
tmp0 = _mm_madd_epi16(lo_6_5, stg4_1); \
tmp1 = _mm_madd_epi16(hi_6_5, stg4_1); \
tmp2 = _mm_madd_epi16(lo_6_5, stg4_0); \
tmp3 = _mm_madd_epi16(hi_6_5, stg4_0); \
\
tmp0 = _mm_add_epi32(tmp0, rounding); \
tmp1 = _mm_add_epi32(tmp1, rounding); \
tmp2 = _mm_add_epi32(tmp2, rounding); \
tmp3 = _mm_add_epi32(tmp3, rounding); \
\
tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS); \
tmp1 = _mm_srai_epi32(tmp1, DCT_CONST_BITS); \
tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS); \
tmp3 = _mm_srai_epi32(tmp3, DCT_CONST_BITS); \
\
stp1_5 = _mm_packs_epi32(tmp0, tmp1); \
stp1_6 = _mm_packs_epi32(tmp2, tmp3); \
\
stp1_4 = stp2_4; \
stp1_7 = stp2_7; \
\
stp1_8 = _mm_add_epi16(stp2_8, stp2_11); \
stp1_9 = _mm_add_epi16(stp2_9, stp2_10); \
stp1_10 = _mm_sub_epi16(stp2_9, stp2_10); \
stp1_11 = _mm_sub_epi16(stp2_8, stp2_11); \
stp1_12 = _mm_sub_epi16(stp2_15, stp2_12); \
stp1_13 = _mm_sub_epi16(stp2_14, stp2_13); \
stp1_14 = _mm_add_epi16(stp2_14, stp2_13); \
stp1_15 = _mm_add_epi16(stp2_15, stp2_12); \
\
stp1_16 = stp2_16; \
stp1_17 = stp2_17; \
\
MULTIPLICATION_AND_ADD(lo_18_29, hi_18_29, lo_19_28, hi_19_28, stg4_4, \
stg4_5, stg4_4, stg4_5, stp1_18, stp1_29, stp1_19, \
stp1_28) \
MULTIPLICATION_AND_ADD(lo_20_27, hi_20_27, lo_21_26, hi_21_26, stg4_6, \
stg4_4, stg4_6, stg4_4, stp1_20, stp1_27, stp1_21, \
stp1_26) \
\
stp1_22 = stp2_22; \
stp1_23 = stp2_23; \
stp1_24 = stp2_24; \
stp1_25 = stp2_25; \
stp1_30 = stp2_30; \
stp1_31 = stp2_31; \
} \
\
/* Stage6 */ \
{ \
const __m128i lo_10_13 = _mm_unpacklo_epi16(stp1_10, stp1_13); \
const __m128i hi_10_13 = _mm_unpackhi_epi16(stp1_10, stp1_13); \
const __m128i lo_11_12 = _mm_unpacklo_epi16(stp1_11, stp1_12); \
const __m128i hi_11_12 = _mm_unpackhi_epi16(stp1_11, stp1_12); \
\
stp2_0 = _mm_add_epi16(stp1_0, stp1_7); \
stp2_1 = _mm_add_epi16(stp1_1, stp1_6); \
stp2_2 = _mm_add_epi16(stp1_2, stp1_5); \
stp2_3 = _mm_add_epi16(stp1_3, stp1_4); \
stp2_4 = _mm_sub_epi16(stp1_3, stp1_4); \
stp2_5 = _mm_sub_epi16(stp1_2, stp1_5); \
stp2_6 = _mm_sub_epi16(stp1_1, stp1_6); \
stp2_7 = _mm_sub_epi16(stp1_0, stp1_7); \
\
stp2_8 = stp1_8; \
stp2_9 = stp1_9; \
stp2_14 = stp1_14; \
stp2_15 = stp1_15; \
\
MULTIPLICATION_AND_ADD(lo_10_13, hi_10_13, lo_11_12, hi_11_12, stg6_0, \
stg4_0, stg6_0, stg4_0, stp2_10, stp2_13, stp2_11, \
stp2_12) \
\
stp2_16 = _mm_add_epi16(stp1_16, stp1_23); \
stp2_17 = _mm_add_epi16(stp1_17, stp1_22); \
stp2_18 = _mm_add_epi16(stp1_18, stp1_21); \
stp2_19 = _mm_add_epi16(stp1_19, stp1_20); \
stp2_20 = _mm_sub_epi16(stp1_19, stp1_20); \
stp2_21 = _mm_sub_epi16(stp1_18, stp1_21); \
stp2_22 = _mm_sub_epi16(stp1_17, stp1_22); \
stp2_23 = _mm_sub_epi16(stp1_16, stp1_23); \
\
stp2_24 = _mm_sub_epi16(stp1_31, stp1_24); \
stp2_25 = _mm_sub_epi16(stp1_30, stp1_25); \
stp2_26 = _mm_sub_epi16(stp1_29, stp1_26); \
stp2_27 = _mm_sub_epi16(stp1_28, stp1_27); \
stp2_28 = _mm_add_epi16(stp1_27, stp1_28); \
stp2_29 = _mm_add_epi16(stp1_26, stp1_29); \
stp2_30 = _mm_add_epi16(stp1_25, stp1_30); \
stp2_31 = _mm_add_epi16(stp1_24, stp1_31); \
} \
\
/* Stage7 */ \
{ \
const __m128i lo_20_27 = _mm_unpacklo_epi16(stp2_20, stp2_27); \
const __m128i hi_20_27 = _mm_unpackhi_epi16(stp2_20, stp2_27); \
const __m128i lo_21_26 = _mm_unpacklo_epi16(stp2_21, stp2_26); \
const __m128i hi_21_26 = _mm_unpackhi_epi16(stp2_21, stp2_26); \
\
const __m128i lo_22_25 = _mm_unpacklo_epi16(stp2_22, stp2_25); \
const __m128i hi_22_25 = _mm_unpackhi_epi16(stp2_22, stp2_25); \
const __m128i lo_23_24 = _mm_unpacklo_epi16(stp2_23, stp2_24); \
const __m128i hi_23_24 = _mm_unpackhi_epi16(stp2_23, stp2_24); \
\
stp1_0 = _mm_add_epi16(stp2_0, stp2_15); \
stp1_1 = _mm_add_epi16(stp2_1, stp2_14); \
stp1_2 = _mm_add_epi16(stp2_2, stp2_13); \
stp1_3 = _mm_add_epi16(stp2_3, stp2_12); \
stp1_4 = _mm_add_epi16(stp2_4, stp2_11); \
stp1_5 = _mm_add_epi16(stp2_5, stp2_10); \
stp1_6 = _mm_add_epi16(stp2_6, stp2_9); \
stp1_7 = _mm_add_epi16(stp2_7, stp2_8); \
stp1_8 = _mm_sub_epi16(stp2_7, stp2_8); \
stp1_9 = _mm_sub_epi16(stp2_6, stp2_9); \
stp1_10 = _mm_sub_epi16(stp2_5, stp2_10); \
stp1_11 = _mm_sub_epi16(stp2_4, stp2_11); \
stp1_12 = _mm_sub_epi16(stp2_3, stp2_12); \
stp1_13 = _mm_sub_epi16(stp2_2, stp2_13); \
stp1_14 = _mm_sub_epi16(stp2_1, stp2_14); \
stp1_15 = _mm_sub_epi16(stp2_0, stp2_15); \
\
stp1_16 = stp2_16; \
stp1_17 = stp2_17; \
stp1_18 = stp2_18; \
stp1_19 = stp2_19; \
\
MULTIPLICATION_AND_ADD(lo_20_27, hi_20_27, lo_21_26, hi_21_26, stg6_0, \
stg4_0, stg6_0, stg4_0, stp1_20, stp1_27, stp1_21, \
stp1_26) \
MULTIPLICATION_AND_ADD(lo_22_25, hi_22_25, lo_23_24, hi_23_24, stg6_0, \
stg4_0, stg6_0, stg4_0, stp1_22, stp1_25, stp1_23, \
stp1_24) \
\
stp1_28 = stp2_28; \
stp1_29 = stp2_29; \
stp1_30 = stp2_30; \
stp1_31 = stp2_31; \
}
#define IDCT32(in0, in1) \
/* Stage1 */ \
{ \
const __m128i lo_1_31 = _mm_unpacklo_epi16((in0)[1], (in1)[15]); \
const __m128i hi_1_31 = _mm_unpackhi_epi16((in0)[1], (in1)[15]); \
const __m128i lo_17_15 = _mm_unpacklo_epi16((in1)[1], (in0)[15]); \
const __m128i hi_17_15 = _mm_unpackhi_epi16((in1)[1], (in0)[15]); \
\
const __m128i lo_9_23 = _mm_unpacklo_epi16((in0)[9], (in1)[7]); \
const __m128i hi_9_23 = _mm_unpackhi_epi16((in0)[9], (in1)[7]); \
const __m128i lo_25_7 = _mm_unpacklo_epi16((in1)[9], (in0)[7]); \
const __m128i hi_25_7 = _mm_unpackhi_epi16((in1)[9], (in0)[7]); \
\
const __m128i lo_5_27 = _mm_unpacklo_epi16((in0)[5], (in1)[11]); \
const __m128i hi_5_27 = _mm_unpackhi_epi16((in0)[5], (in1)[11]); \
const __m128i lo_21_11 = _mm_unpacklo_epi16((in1)[5], (in0)[11]); \
const __m128i hi_21_11 = _mm_unpackhi_epi16((in1)[5], (in0)[11]); \
\
const __m128i lo_13_19 = _mm_unpacklo_epi16((in0)[13], (in1)[3]); \
const __m128i hi_13_19 = _mm_unpackhi_epi16((in0)[13], (in1)[3]); \
const __m128i lo_29_3 = _mm_unpacklo_epi16((in1)[13], (in0)[3]); \
const __m128i hi_29_3 = _mm_unpackhi_epi16((in1)[13], (in0)[3]); \
\
MULTIPLICATION_AND_ADD(lo_1_31, hi_1_31, lo_17_15, hi_17_15, stg1_0, \
stg1_1, stg1_2, stg1_3, stp1_16, stp1_31, stp1_17, \
stp1_30) \
MULTIPLICATION_AND_ADD(lo_9_23, hi_9_23, lo_25_7, hi_25_7, stg1_4, stg1_5, \
stg1_6, stg1_7, stp1_18, stp1_29, stp1_19, stp1_28) \
MULTIPLICATION_AND_ADD(lo_5_27, hi_5_27, lo_21_11, hi_21_11, stg1_8, \
stg1_9, stg1_10, stg1_11, stp1_20, stp1_27, \
stp1_21, stp1_26) \
MULTIPLICATION_AND_ADD(lo_13_19, hi_13_19, lo_29_3, hi_29_3, stg1_12, \
stg1_13, stg1_14, stg1_15, stp1_22, stp1_25, \
stp1_23, stp1_24) \
} \
\
/* Stage2 */ \
{ \
const __m128i lo_2_30 = _mm_unpacklo_epi16((in0)[2], (in1)[14]); \
const __m128i hi_2_30 = _mm_unpackhi_epi16((in0)[2], (in1)[14]); \
const __m128i lo_18_14 = _mm_unpacklo_epi16((in1)[2], (in0)[14]); \
const __m128i hi_18_14 = _mm_unpackhi_epi16((in1)[2], (in0)[14]); \
\
const __m128i lo_10_22 = _mm_unpacklo_epi16((in0)[10], (in1)[6]); \
const __m128i hi_10_22 = _mm_unpackhi_epi16((in0)[10], (in1)[6]); \
const __m128i lo_26_6 = _mm_unpacklo_epi16((in1)[10], (in0)[6]); \
const __m128i hi_26_6 = _mm_unpackhi_epi16((in1)[10], (in0)[6]); \
\
MULTIPLICATION_AND_ADD(lo_2_30, hi_2_30, lo_18_14, hi_18_14, stg2_0, \
stg2_1, stg2_2, stg2_3, stp2_8, stp2_15, stp2_9, \
stp2_14) \
MULTIPLICATION_AND_ADD(lo_10_22, hi_10_22, lo_26_6, hi_26_6, stg2_4, \
stg2_5, stg2_6, stg2_7, stp2_10, stp2_13, stp2_11, \
stp2_12) \
\
stp2_16 = _mm_add_epi16(stp1_16, stp1_17); \
stp2_17 = _mm_sub_epi16(stp1_16, stp1_17); \
stp2_18 = _mm_sub_epi16(stp1_19, stp1_18); \
stp2_19 = _mm_add_epi16(stp1_19, stp1_18); \
\
stp2_20 = _mm_add_epi16(stp1_20, stp1_21); \
stp2_21 = _mm_sub_epi16(stp1_20, stp1_21); \
stp2_22 = _mm_sub_epi16(stp1_23, stp1_22); \
stp2_23 = _mm_add_epi16(stp1_23, stp1_22); \
\
stp2_24 = _mm_add_epi16(stp1_24, stp1_25); \
stp2_25 = _mm_sub_epi16(stp1_24, stp1_25); \
stp2_26 = _mm_sub_epi16(stp1_27, stp1_26); \
stp2_27 = _mm_add_epi16(stp1_27, stp1_26); \
\
stp2_28 = _mm_add_epi16(stp1_28, stp1_29); \
stp2_29 = _mm_sub_epi16(stp1_28, stp1_29); \
stp2_30 = _mm_sub_epi16(stp1_31, stp1_30); \
stp2_31 = _mm_add_epi16(stp1_31, stp1_30); \
} \
\
/* Stage3 */ \
{ \
const __m128i lo_4_28 = _mm_unpacklo_epi16((in0)[4], (in1)[12]); \
const __m128i hi_4_28 = _mm_unpackhi_epi16((in0)[4], (in1)[12]); \
const __m128i lo_20_12 = _mm_unpacklo_epi16((in1)[4], (in0)[12]); \
const __m128i hi_20_12 = _mm_unpackhi_epi16((in1)[4], (in0)[12]); \
\
const __m128i lo_17_30 = _mm_unpacklo_epi16(stp2_17, stp2_30); \
const __m128i hi_17_30 = _mm_unpackhi_epi16(stp2_17, stp2_30); \
const __m128i lo_18_29 = _mm_unpacklo_epi16(stp2_18, stp2_29); \
const __m128i hi_18_29 = _mm_unpackhi_epi16(stp2_18, stp2_29); \
\
const __m128i lo_21_26 = _mm_unpacklo_epi16(stp2_21, stp2_26); \
const __m128i hi_21_26 = _mm_unpackhi_epi16(stp2_21, stp2_26); \
const __m128i lo_22_25 = _mm_unpacklo_epi16(stp2_22, stp2_25); \
const __m128i hi_22_25 = _mm_unpackhi_epi16(stp2_22, stp2_25); \
\
MULTIPLICATION_AND_ADD(lo_4_28, hi_4_28, lo_20_12, hi_20_12, stg3_0, \
stg3_1, stg3_2, stg3_3, stp1_4, stp1_7, stp1_5, \
stp1_6) \
\
stp1_8 = _mm_add_epi16(stp2_8, stp2_9); \
stp1_9 = _mm_sub_epi16(stp2_8, stp2_9); \
stp1_10 = _mm_sub_epi16(stp2_11, stp2_10); \
stp1_11 = _mm_add_epi16(stp2_11, stp2_10); \
stp1_12 = _mm_add_epi16(stp2_12, stp2_13); \
stp1_13 = _mm_sub_epi16(stp2_12, stp2_13); \
stp1_14 = _mm_sub_epi16(stp2_15, stp2_14); \
stp1_15 = _mm_add_epi16(stp2_15, stp2_14); \
\
MULTIPLICATION_AND_ADD(lo_17_30, hi_17_30, lo_18_29, hi_18_29, stg3_4, \
stg3_5, stg3_6, stg3_4, stp1_17, stp1_30, stp1_18, \
stp1_29) \
MULTIPLICATION_AND_ADD(lo_21_26, hi_21_26, lo_22_25, hi_22_25, stg3_8, \
stg3_9, stg3_10, stg3_8, stp1_21, stp1_26, stp1_22, \
stp1_25) \
\
stp1_16 = stp2_16; \
stp1_31 = stp2_31; \
stp1_19 = stp2_19; \
stp1_20 = stp2_20; \
stp1_23 = stp2_23; \
stp1_24 = stp2_24; \
stp1_27 = stp2_27; \
stp1_28 = stp2_28; \
} \
\
/* Stage4 */ \
{ \
const __m128i lo_0_16 = _mm_unpacklo_epi16((in0)[0], (in1)[0]); \
const __m128i hi_0_16 = _mm_unpackhi_epi16((in0)[0], (in1)[0]); \
const __m128i lo_8_24 = _mm_unpacklo_epi16((in0)[8], (in1)[8]); \
const __m128i hi_8_24 = _mm_unpackhi_epi16((in0)[8], (in1)[8]); \
\
const __m128i lo_9_14 = _mm_unpacklo_epi16(stp1_9, stp1_14); \
const __m128i hi_9_14 = _mm_unpackhi_epi16(stp1_9, stp1_14); \
const __m128i lo_10_13 = _mm_unpacklo_epi16(stp1_10, stp1_13); \
const __m128i hi_10_13 = _mm_unpackhi_epi16(stp1_10, stp1_13); \
\
MULTIPLICATION_AND_ADD(lo_0_16, hi_0_16, lo_8_24, hi_8_24, stg4_0, stg4_1, \
stg4_2, stg4_3, stp2_0, stp2_1, stp2_2, stp2_3) \
\
stp2_4 = _mm_add_epi16(stp1_4, stp1_5); \
stp2_5 = _mm_sub_epi16(stp1_4, stp1_5); \
stp2_6 = _mm_sub_epi16(stp1_7, stp1_6); \
stp2_7 = _mm_add_epi16(stp1_7, stp1_6); \
\
MULTIPLICATION_AND_ADD(lo_9_14, hi_9_14, lo_10_13, hi_10_13, stg4_4, \
stg4_5, stg4_6, stg4_4, stp2_9, stp2_14, stp2_10, \
stp2_13) \
\
stp2_8 = stp1_8; \
stp2_15 = stp1_15; \
stp2_11 = stp1_11; \
stp2_12 = stp1_12; \
\
stp2_16 = _mm_add_epi16(stp1_16, stp1_19); \
stp2_17 = _mm_add_epi16(stp1_17, stp1_18); \
stp2_18 = _mm_sub_epi16(stp1_17, stp1_18); \
stp2_19 = _mm_sub_epi16(stp1_16, stp1_19); \
stp2_20 = _mm_sub_epi16(stp1_23, stp1_20); \
stp2_21 = _mm_sub_epi16(stp1_22, stp1_21); \
stp2_22 = _mm_add_epi16(stp1_22, stp1_21); \
stp2_23 = _mm_add_epi16(stp1_23, stp1_20); \
\
stp2_24 = _mm_add_epi16(stp1_24, stp1_27); \
stp2_25 = _mm_add_epi16(stp1_25, stp1_26); \
stp2_26 = _mm_sub_epi16(stp1_25, stp1_26); \
stp2_27 = _mm_sub_epi16(stp1_24, stp1_27); \
stp2_28 = _mm_sub_epi16(stp1_31, stp1_28); \
stp2_29 = _mm_sub_epi16(stp1_30, stp1_29); \
stp2_30 = _mm_add_epi16(stp1_29, stp1_30); \
stp2_31 = _mm_add_epi16(stp1_28, stp1_31); \
} \
\
/* Stage5 */ \
{ \
const __m128i lo_6_5 = _mm_unpacklo_epi16(stp2_6, stp2_5); \
const __m128i hi_6_5 = _mm_unpackhi_epi16(stp2_6, stp2_5); \
const __m128i lo_18_29 = _mm_unpacklo_epi16(stp2_18, stp2_29); \
const __m128i hi_18_29 = _mm_unpackhi_epi16(stp2_18, stp2_29); \
\
const __m128i lo_19_28 = _mm_unpacklo_epi16(stp2_19, stp2_28); \
const __m128i hi_19_28 = _mm_unpackhi_epi16(stp2_19, stp2_28); \
const __m128i lo_20_27 = _mm_unpacklo_epi16(stp2_20, stp2_27); \
const __m128i hi_20_27 = _mm_unpackhi_epi16(stp2_20, stp2_27); \
\
const __m128i lo_21_26 = _mm_unpacklo_epi16(stp2_21, stp2_26); \
const __m128i hi_21_26 = _mm_unpackhi_epi16(stp2_21, stp2_26); \
\
stp1_0 = _mm_add_epi16(stp2_0, stp2_3); \
stp1_1 = _mm_add_epi16(stp2_1, stp2_2); \
stp1_2 = _mm_sub_epi16(stp2_1, stp2_2); \
stp1_3 = _mm_sub_epi16(stp2_0, stp2_3); \
\
tmp0 = _mm_madd_epi16(lo_6_5, stg4_1); \
tmp1 = _mm_madd_epi16(hi_6_5, stg4_1); \
tmp2 = _mm_madd_epi16(lo_6_5, stg4_0); \
tmp3 = _mm_madd_epi16(hi_6_5, stg4_0); \
\
tmp0 = _mm_add_epi32(tmp0, rounding); \
tmp1 = _mm_add_epi32(tmp1, rounding); \
tmp2 = _mm_add_epi32(tmp2, rounding); \
tmp3 = _mm_add_epi32(tmp3, rounding); \
\
tmp0 = _mm_srai_epi32(tmp0, DCT_CONST_BITS); \
tmp1 = _mm_srai_epi32(tmp1, DCT_CONST_BITS); \
tmp2 = _mm_srai_epi32(tmp2, DCT_CONST_BITS); \
tmp3 = _mm_srai_epi32(tmp3, DCT_CONST_BITS); \
\
stp1_5 = _mm_packs_epi32(tmp0, tmp1); \
stp1_6 = _mm_packs_epi32(tmp2, tmp3); \
\
stp1_4 = stp2_4; \
stp1_7 = stp2_7; \
\
stp1_8 = _mm_add_epi16(stp2_8, stp2_11); \
stp1_9 = _mm_add_epi16(stp2_9, stp2_10); \
stp1_10 = _mm_sub_epi16(stp2_9, stp2_10); \
stp1_11 = _mm_sub_epi16(stp2_8, stp2_11); \
stp1_12 = _mm_sub_epi16(stp2_15, stp2_12); \
stp1_13 = _mm_sub_epi16(stp2_14, stp2_13); \
stp1_14 = _mm_add_epi16(stp2_14, stp2_13); \
stp1_15 = _mm_add_epi16(stp2_15, stp2_12); \
\
stp1_16 = stp2_16; \
stp1_17 = stp2_17; \
\
MULTIPLICATION_AND_ADD(lo_18_29, hi_18_29, lo_19_28, hi_19_28, stg4_4, \
stg4_5, stg4_4, stg4_5, stp1_18, stp1_29, stp1_19, \
stp1_28) \
MULTIPLICATION_AND_ADD(lo_20_27, hi_20_27, lo_21_26, hi_21_26, stg4_6, \
stg4_4, stg4_6, stg4_4, stp1_20, stp1_27, stp1_21, \
stp1_26) \
\
stp1_22 = stp2_22; \
stp1_23 = stp2_23; \
stp1_24 = stp2_24; \
stp1_25 = stp2_25; \
stp1_30 = stp2_30; \
stp1_31 = stp2_31; \
} \
\
/* Stage6 */ \
{ \
const __m128i lo_10_13 = _mm_unpacklo_epi16(stp1_10, stp1_13); \
const __m128i hi_10_13 = _mm_unpackhi_epi16(stp1_10, stp1_13); \
const __m128i lo_11_12 = _mm_unpacklo_epi16(stp1_11, stp1_12); \
const __m128i hi_11_12 = _mm_unpackhi_epi16(stp1_11, stp1_12); \
\
stp2_0 = _mm_add_epi16(stp1_0, stp1_7); \
stp2_1 = _mm_add_epi16(stp1_1, stp1_6); \
stp2_2 = _mm_add_epi16(stp1_2, stp1_5); \
stp2_3 = _mm_add_epi16(stp1_3, stp1_4); \
stp2_4 = _mm_sub_epi16(stp1_3, stp1_4); \
stp2_5 = _mm_sub_epi16(stp1_2, stp1_5); \
stp2_6 = _mm_sub_epi16(stp1_1, stp1_6); \
stp2_7 = _mm_sub_epi16(stp1_0, stp1_7); \
\
stp2_8 = stp1_8; \
stp2_9 = stp1_9; \
stp2_14 = stp1_14; \
stp2_15 = stp1_15; \
\
MULTIPLICATION_AND_ADD(lo_10_13, hi_10_13, lo_11_12, hi_11_12, stg6_0, \
stg4_0, stg6_0, stg4_0, stp2_10, stp2_13, stp2_11, \
stp2_12) \
\
stp2_16 = _mm_add_epi16(stp1_16, stp1_23); \
stp2_17 = _mm_add_epi16(stp1_17, stp1_22); \
stp2_18 = _mm_add_epi16(stp1_18, stp1_21); \
stp2_19 = _mm_add_epi16(stp1_19, stp1_20); \
stp2_20 = _mm_sub_epi16(stp1_19, stp1_20); \
stp2_21 = _mm_sub_epi16(stp1_18, stp1_21); \
stp2_22 = _mm_sub_epi16(stp1_17, stp1_22); \
stp2_23 = _mm_sub_epi16(stp1_16, stp1_23); \
\
stp2_24 = _mm_sub_epi16(stp1_31, stp1_24); \
stp2_25 = _mm_sub_epi16(stp1_30, stp1_25); \
stp2_26 = _mm_sub_epi16(stp1_29, stp1_26); \
stp2_27 = _mm_sub_epi16(stp1_28, stp1_27); \
stp2_28 = _mm_add_epi16(stp1_27, stp1_28); \
stp2_29 = _mm_add_epi16(stp1_26, stp1_29); \
stp2_30 = _mm_add_epi16(stp1_25, stp1_30); \
stp2_31 = _mm_add_epi16(stp1_24, stp1_31); \
} \
\
/* Stage7 */ \
{ \
const __m128i lo_20_27 = _mm_unpacklo_epi16(stp2_20, stp2_27); \
const __m128i hi_20_27 = _mm_unpackhi_epi16(stp2_20, stp2_27); \
const __m128i lo_21_26 = _mm_unpacklo_epi16(stp2_21, stp2_26); \
const __m128i hi_21_26 = _mm_unpackhi_epi16(stp2_21, stp2_26); \
\
const __m128i lo_22_25 = _mm_unpacklo_epi16(stp2_22, stp2_25); \
const __m128i hi_22_25 = _mm_unpackhi_epi16(stp2_22, stp2_25); \
const __m128i lo_23_24 = _mm_unpacklo_epi16(stp2_23, stp2_24); \
const __m128i hi_23_24 = _mm_unpackhi_epi16(stp2_23, stp2_24); \
\
stp1_0 = _mm_add_epi16(stp2_0, stp2_15); \
stp1_1 = _mm_add_epi16(stp2_1, stp2_14); \
stp1_2 = _mm_add_epi16(stp2_2, stp2_13); \
stp1_3 = _mm_add_epi16(stp2_3, stp2_12); \
stp1_4 = _mm_add_epi16(stp2_4, stp2_11); \
stp1_5 = _mm_add_epi16(stp2_5, stp2_10); \
stp1_6 = _mm_add_epi16(stp2_6, stp2_9); \
stp1_7 = _mm_add_epi16(stp2_7, stp2_8); \
stp1_8 = _mm_sub_epi16(stp2_7, stp2_8); \
stp1_9 = _mm_sub_epi16(stp2_6, stp2_9); \
stp1_10 = _mm_sub_epi16(stp2_5, stp2_10); \
stp1_11 = _mm_sub_epi16(stp2_4, stp2_11); \
stp1_12 = _mm_sub_epi16(stp2_3, stp2_12); \
stp1_13 = _mm_sub_epi16(stp2_2, stp2_13); \
stp1_14 = _mm_sub_epi16(stp2_1, stp2_14); \
stp1_15 = _mm_sub_epi16(stp2_0, stp2_15); \
\
stp1_16 = stp2_16; \
stp1_17 = stp2_17; \
stp1_18 = stp2_18; \
stp1_19 = stp2_19; \
\
MULTIPLICATION_AND_ADD(lo_20_27, hi_20_27, lo_21_26, hi_21_26, stg6_0, \
stg4_0, stg6_0, stg4_0, stp1_20, stp1_27, stp1_21, \
stp1_26) \
MULTIPLICATION_AND_ADD(lo_22_25, hi_22_25, lo_23_24, hi_23_24, stg6_0, \
stg4_0, stg6_0, stg4_0, stp1_22, stp1_25, stp1_23, \
stp1_24) \
\
stp1_28 = stp2_28; \
stp1_29 = stp2_29; \
stp1_30 = stp2_30; \
stp1_31 = stp2_31; \
}
// Only upper-left 8x8 has non-zero coeff
void aom_idct32x32_34_add_sse2(const tran_low_t *input, uint8_t *dest,
int stride) {
const __m128i zero = _mm_setzero_si128();
const __m128i rounding = _mm_set1_epi32(DCT_CONST_ROUNDING);
const __m128i final_rounding = _mm_set1_epi16(1 << 5);
// idct constants for each stage
const __m128i stg1_0 = pair_set_epi16(cospi_31_64, -cospi_1_64);
const __m128i stg1_1 = pair_set_epi16(cospi_1_64, cospi_31_64);
const __m128i stg1_6 = pair_set_epi16(cospi_7_64, -cospi_25_64);
const __m128i stg1_7 = pair_set_epi16(cospi_25_64, cospi_7_64);
const __m128i stg1_8 = pair_set_epi16(cospi_27_64, -cospi_5_64);
const __m128i stg1_9 = pair_set_epi16(cospi_5_64, cospi_27_64);
const __m128i stg1_14 = pair_set_epi16(cospi_3_64, -cospi_29_64);
const __m128i stg1_15 = pair_set_epi16(cospi_29_64, cospi_3_64);
const __m128i stg2_0 = pair_set_epi16(cospi_30_64, -cospi_2_64);
const __m128i stg2_1 = pair_set_epi16(cospi_2_64, cospi_30_64);
const __m128i stg2_6 = pair_set_epi16(cospi_6_64, -cospi_26_64);
const __m128i stg2_7 = pair_set_epi16(cospi_26_64, cospi_6_64);
const __m128i stg3_0 = pair_set_epi16(cospi_28_64, -cospi_4_64);
const __m128i stg3_1 = pair_set_epi16(cospi_4_64, cospi_28_64);
const __m128i stg3_4 = pair_set_epi16(-cospi_4_64, cospi_28_64);
const __m128i stg3_5 = pair_set_epi16(cospi_28_64, cospi_4_64);
const __m128i stg3_6 = pair_set_epi16(-cospi_28_64, -cospi_4_64);
const __m128i stg3_8 = pair_set_epi16(-cospi_20_64, cospi_12_64);
const __m128i stg3_9 = pair_set_epi16(cospi_12_64, cospi_20_64);
const __m128i stg3_10 = pair_set_epi16(-cospi_12_64, -cospi_20_64);
const __m128i stg4_0 = pair_set_epi16(cospi_16_64, cospi_16_64);
const __m128i stg4_1 = pair_set_epi16(cospi_16_64, -cospi_16_64);
const __m128i stg4_4 = pair_set_epi16(-cospi_8_64, cospi_24_64);
const __m128i stg4_5 = pair_set_epi16(cospi_24_64, cospi_8_64);
const __m128i stg4_6 = pair_set_epi16(-cospi_24_64, -cospi_8_64);
const __m128i stg6_0 = pair_set_epi16(-cospi_16_64, cospi_16_64);
__m128i in[32], col[32];
__m128i stp1_0, stp1_1, stp1_2, stp1_3, stp1_4, stp1_5, stp1_6, stp1_7,
stp1_8, stp1_9, stp1_10, stp1_11, stp1_12, stp1_13, stp1_14, stp1_15,
stp1_16, stp1_17, stp1_18, stp1_19, stp1_20, stp1_21, stp1_22, stp1_23,
stp1_24, stp1_25, stp1_26, stp1_27, stp1_28, stp1_29, stp1_30, stp1_31;
__m128i stp2_0, stp2_1, stp2_2, stp2_3, stp2_4, stp2_5, stp2_6, stp2_7,
stp2_8, stp2_9, stp2_10, stp2_11, stp2_12, stp2_13, stp2_14, stp2_15,
stp2_16, stp2_17, stp2_18, stp2_19, stp2_20, stp2_21, stp2_22, stp2_23,
stp2_24, stp2_25, stp2_26, stp2_27, stp2_28, stp2_29, stp2_30, stp2_31;
__m128i tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
int i;
// Load input data. Only need to load the top left 8x8 block.
in[0] = load_input_data(input);
in[1] = load_input_data(input + 32);
in[2] = load_input_data(input + 64);
in[3] = load_input_data(input + 96);
in[4] = load_input_data(input + 128);
in[5] = load_input_data(input + 160);
in[6] = load_input_data(input + 192);
in[7] = load_input_data(input + 224);
for (i = 8; i < 32; ++i) {
in[i] = _mm_setzero_si128();
}
array_transpose_8x8(in, in);
// TODO(hkuang): Following transposes are unnecessary. But remove them will
// lead to performance drop on some devices.
array_transpose_8x8(in + 8, in + 8);
array_transpose_8x8(in + 16, in + 16);
array_transpose_8x8(in + 24, in + 24);
IDCT32_34
// 1_D: Store 32 intermediate results for each 8x32 block.
col[0] = _mm_add_epi16(stp1_0, stp1_31);
col[1] = _mm_add_epi16(stp1_1, stp1_30);
col[2] = _mm_add_epi16(stp1_2, stp1_29);
col[3] = _mm_add_epi16(stp1_3, stp1_28);
col[4] = _mm_add_epi16(stp1_4, stp1_27);
col[5] = _mm_add_epi16(stp1_5, stp1_26);
col[6] = _mm_add_epi16(stp1_6, stp1_25);
col[7] = _mm_add_epi16(stp1_7, stp1_24);
col[8] = _mm_add_epi16(stp1_8, stp1_23);
col[9] = _mm_add_epi16(stp1_9, stp1_22);
col[10] = _mm_add_epi16(stp1_10, stp1_21);
col[11] = _mm_add_epi16(stp1_11, stp1_20);
col[12] = _mm_add_epi16(stp1_12, stp1_19);
col[13] = _mm_add_epi16(stp1_13, stp1_18);
col[14] = _mm_add_epi16(stp1_14, stp1_17);
col[15] = _mm_add_epi16(stp1_15, stp1_16);
col[16] = _mm_sub_epi16(stp1_15, stp1_16);
col[17] = _mm_sub_epi16(stp1_14, stp1_17);
col[18] = _mm_sub_epi16(stp1_13, stp1_18);
col[19] = _mm_sub_epi16(stp1_12, stp1_19);
col[20] = _mm_sub_epi16(stp1_11, stp1_20);
col[21] = _mm_sub_epi16(stp1_10, stp1_21);
col[22] = _mm_sub_epi16(stp1_9, stp1_22);
col[23] = _mm_sub_epi16(stp1_8, stp1_23);
col[24] = _mm_sub_epi16(stp1_7, stp1_24);
col[25] = _mm_sub_epi16(stp1_6, stp1_25);
col[26] = _mm_sub_epi16(stp1_5, stp1_26);
col[27] = _mm_sub_epi16(stp1_4, stp1_27);
col[28] = _mm_sub_epi16(stp1_3, stp1_28);
col[29] = _mm_sub_epi16(stp1_2, stp1_29);
col[30] = _mm_sub_epi16(stp1_1, stp1_30);
col[31] = _mm_sub_epi16(stp1_0, stp1_31);
for (i = 0; i < 4; i++) {
int j;
// Transpose 32x8 block to 8x32 block
array_transpose_8x8(col + i * 8, in);
IDCT32_34
// 2_D: Calculate the results and store them to destination.
in[0] = _mm_add_epi16(stp1_0, stp1_31);
in[1] = _mm_add_epi16(stp1_1, stp1_30);
in[2] = _mm_add_epi16(stp1_2, stp1_29);
in[3] = _mm_add_epi16(stp1_3, stp1_28);
in[4] = _mm_add_epi16(stp1_4, stp1_27);
in[5] = _mm_add_epi16(stp1_5, stp1_26);
in[6] = _mm_add_epi16(stp1_6, stp1_25);
in[7] = _mm_add_epi16(stp1_7, stp1_24);
in[8] = _mm_add_epi16(stp1_8, stp1_23);
in[9] = _mm_add_epi16(stp1_9, stp1_22);
in[10] = _mm_add_epi16(stp1_10, stp1_21);
in[11] = _mm_add_epi16(stp1_11, stp1_20);
in[12] = _mm_add_epi16(stp1_12, stp1_19);
in[13] = _mm_add_epi16(stp1_13, stp1_18);
in[14] = _mm_add_epi16(stp1_14, stp1_17);
in[15] = _mm_add_epi16(stp1_15, stp1_16);
in[16] = _mm_sub_epi16(stp1_15, stp1_16);
in[17] = _mm_sub_epi16(stp1_14, stp1_17);
in[18] = _mm_sub_epi16(stp1_13, stp1_18);
in[19] = _mm_sub_epi16(stp1_12, stp1_19);
in[20] = _mm_sub_epi16(stp1_11, stp1_20);
in[21] = _mm_sub_epi16(stp1_10, stp1_21);
in[22] = _mm_sub_epi16(stp1_9, stp1_22);
in[23] = _mm_sub_epi16(stp1_8, stp1_23);
in[24] = _mm_sub_epi16(stp1_7, stp1_24);
in[25] = _mm_sub_epi16(stp1_6, stp1_25);
in[26] = _mm_sub_epi16(stp1_5, stp1_26);
in[27] = _mm_sub_epi16(stp1_4, stp1_27);
in[28] = _mm_sub_epi16(stp1_3, stp1_28);
in[29] = _mm_sub_epi16(stp1_2, stp1_29);
in[30] = _mm_sub_epi16(stp1_1, stp1_30);
in[31] = _mm_sub_epi16(stp1_0, stp1_31);
for (j = 0; j < 32; ++j) {
// Final rounding and shift
in[j] = _mm_adds_epi16(in[j], final_rounding);
in[j] = _mm_srai_epi16(in[j], 6);
RECON_AND_STORE(dest + j * stride, in[j]);
}
dest += 8;
}
}
void aom_idct32x32_1024_add_sse2(const tran_low_t *input, uint8_t *dest,
int stride) {
const __m128i rounding = _mm_set1_epi32(DCT_CONST_ROUNDING);
const __m128i final_rounding = _mm_set1_epi16(1 << 5);
const __m128i zero = _mm_setzero_si128();
// idct constants for each stage
const __m128i stg1_0 = pair_set_epi16(cospi_31_64, -cospi_1_64);
const __m128i stg1_1 = pair_set_epi16(cospi_1_64, cospi_31_64);
const __m128i stg1_2 = pair_set_epi16(cospi_15_64, -cospi_17_64);
const __m128i stg1_3 = pair_set_epi16(cospi_17_64, cospi_15_64);
const __m128i stg1_4 = pair_set_epi16(cospi_23_64, -cospi_9_64);
const __m128i stg1_5 = pair_set_epi16(cospi_9_64, cospi_23_64);
const __m128i stg1_6 = pair_set_epi16(cospi_7_64, -cospi_25_64);
const __m128i stg1_7 = pair_set_epi16(cospi_25_64, cospi_7_64);
const __m128i stg1_8 = pair_set_epi16(cospi_27_64, -cospi_5_64);
const __m128i stg1_9 = pair_set_epi16(cospi_5_64, cospi_27_64);
const __m128i stg1_10 = pair_set_epi16(cospi_11_64, -cospi_21_64);
const __m128i stg1_11 = pair_set_epi16(cospi_21_64, cospi_11_64);
const __m128i stg1_12 = pair_set_epi16(cospi_19_64, -cospi_13_64);
const __m128i stg1_13 = pair_set_epi16(cospi_13_64, cospi_19_64);
const __m128i stg1_14 = pair_set_epi16(cospi_3_64, -cospi_29_64);
const __m128i stg1_15 = pair_set_epi16(cospi_29_64, cospi_3_64);
const __m128i stg2_0 = pair_set_epi16(cospi_30_64, -cospi_2_64);
const __m128i stg2_1 = pair_set_epi16(cospi_2_64, cospi_30_64);
const __m128i stg2_2 = pair_set_epi16(cospi_14_64, -cospi_18_64);
const __m128i stg2_3 = pair_set_epi16(cospi_18_64, cospi_14_64);
const __m128i stg2_4 = pair_set_epi16(cospi_22_64, -cospi_10_64);
const __m128i stg2_5 = pair_set_epi16(cospi_10_64, cospi_22_64);
const __m128i stg2_6 = pair_set_epi16(cospi_6_64, -cospi_26_64);
const __m128i stg2_7 = pair_set_epi16(cospi_26_64, cospi_6_64);
const __m128i stg3_0 = pair_set_epi16(cospi_28_64, -cospi_4_64);
const __m128i stg3_1 = pair_set_epi16(cospi_4_64, cospi_28_64);
const __m128i stg3_2 = pair_set_epi16(cospi_12_64, -cospi_20_64);
const __m128i stg3_3 = pair_set_epi16(cospi_20_64, cospi_12_64);
const __m128i stg3_4 = pair_set_epi16(-cospi_4_64, cospi_28_64);
const __m128i stg3_5 = pair_set_epi16(cospi_28_64, cospi_4_64);
const __m128i stg3_6 = pair_set_epi16(-cospi_28_64, -cospi_4_64);
const __m128i stg3_8 = pair_set_epi16(-cospi_20_64, cospi_12_64);
const __m128i stg3_9 = pair_set_epi16(cospi_12_64, cospi_20_64);
const __m128i stg3_10 = pair_set_epi16(-cospi_12_64, -cospi_20_64);
const __m128i stg4_0 = pair_set_epi16(cospi_16_64, cospi_16_64);
const __m128i stg4_1 = pair_set_epi16(cospi_16_64, -cospi_16_64);
const __m128i stg4_2 = pair_set_epi16(cospi_24_64, -cospi_8_64);
const __m128i stg4_3 = pair_set_epi16(cospi_8_64, cospi_24_64);
const __m128i stg4_4 = pair_set_epi16(-cospi_8_64, cospi_24_64);
const __m128i stg4_5 = pair_set_epi16(cospi_24_64, cospi_8_64);
const __m128i stg4_6 = pair_set_epi16(-cospi_24_64, -cospi_8_64);
const __m128i stg6_0 = pair_set_epi16(-cospi_16_64, cospi_16_64);
__m128i in[32], col[128], zero_idx[16];
__m128i stp1_0, stp1_1, stp1_2, stp1_3, stp1_4, stp1_5, stp1_6, stp1_7,
stp1_8, stp1_9, stp1_10, stp1_11, stp1_12, stp1_13, stp1_14, stp1_15,
stp1_16, stp1_17, stp1_18, stp1_19, stp1_20, stp1_21, stp1_22, stp1_23,
stp1_24, stp1_25, stp1_26, stp1_27, stp1_28, stp1_29, stp1_30, stp1_31;
__m128i stp2_0, stp2_1, stp2_2, stp2_3, stp2_4, stp2_5, stp2_6, stp2_7,
stp2_8, stp2_9, stp2_10, stp2_11, stp2_12, stp2_13, stp2_14, stp2_15,
stp2_16, stp2_17, stp2_18, stp2_19, stp2_20, stp2_21, stp2_22, stp2_23,
stp2_24, stp2_25, stp2_26, stp2_27, stp2_28, stp2_29, stp2_30, stp2_31;
__m128i tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
int i, j, i32;
for (i = 0; i < 4; i++) {
i32 = (i << 5);
// First 1-D idct
// Load input data.
LOAD_DQCOEFF(in[0], input);
LOAD_DQCOEFF(in[8], input);
LOAD_DQCOEFF(in[16], input);
LOAD_DQCOEFF(in[24], input);
LOAD_DQCOEFF(in[1], input);
LOAD_DQCOEFF(in[9], input);
LOAD_DQCOEFF(in[17], input);
LOAD_DQCOEFF(in[25], input);
LOAD_DQCOEFF(in[2], input);
LOAD_DQCOEFF(in[10], input);
LOAD_DQCOEFF(in[18], input);
LOAD_DQCOEFF(in[26], input);
LOAD_DQCOEFF(in[3], input);
LOAD_DQCOEFF(in[11], input);
LOAD_DQCOEFF(in[19], input);
LOAD_DQCOEFF(in[27], input);
LOAD_DQCOEFF(in[4], input);
LOAD_DQCOEFF(in[12], input);
LOAD_DQCOEFF(in[20], input);
LOAD_DQCOEFF(in[28], input);
LOAD_DQCOEFF(in[5], input);
LOAD_DQCOEFF(in[13], input);
LOAD_DQCOEFF(in[21], input);
LOAD_DQCOEFF(in[29], input);
LOAD_DQCOEFF(in[6], input);
LOAD_DQCOEFF(in[14], input);
LOAD_DQCOEFF(in[22], input);
LOAD_DQCOEFF(in[30], input);
LOAD_DQCOEFF(in[7], input);
LOAD_DQCOEFF(in[15], input);
LOAD_DQCOEFF(in[23], input);
LOAD_DQCOEFF(in[31], input);
// checking if all entries are zero
zero_idx[0] = _mm_or_si128(in[0], in[1]);
zero_idx[1] = _mm_or_si128(in[2], in[3]);
zero_idx[2] = _mm_or_si128(in[4], in[5]);
zero_idx[3] = _mm_or_si128(in[6], in[7]);
zero_idx[4] = _mm_or_si128(in[8], in[9]);
zero_idx[5] = _mm_or_si128(in[10], in[11]);
zero_idx[6] = _mm_or_si128(in[12], in[13]);
zero_idx[7] = _mm_or_si128(in[14], in[15]);
zero_idx[8] = _mm_or_si128(in[16], in[17]);
zero_idx[9] = _mm_or_si128(in[18], in[19]);
zero_idx[10] = _mm_or_si128(in[20], in[21]);
zero_idx[11] = _mm_or_si128(in[22], in[23]);
zero_idx[12] = _mm_or_si128(in[24], in[25]);
zero_idx[13] = _mm_or_si128(in[26], in[27]);
zero_idx[14] = _mm_or_si128(in[28], in[29]);
zero_idx[15] = _mm_or_si128(in[30], in[31]);
zero_idx[0] = _mm_or_si128(zero_idx[0], zero_idx[1]);
zero_idx[1] = _mm_or_si128(zero_idx[2], zero_idx[3]);
zero_idx[2] = _mm_or_si128(zero_idx[4], zero_idx[5]);
zero_idx[3] = _mm_or_si128(zero_idx[6], zero_idx[7]);
zero_idx[4] = _mm_or_si128(zero_idx[8], zero_idx[9]);
zero_idx[5] = _mm_or_si128(zero_idx[10], zero_idx[11]);
zero_idx[6] = _mm_or_si128(zero_idx[12], zero_idx[13]);
zero_idx[7] = _mm_or_si128(zero_idx[14], zero_idx[15]);
zero_idx[8] = _mm_or_si128(zero_idx[0], zero_idx[1]);
zero_idx[9] = _mm_or_si128(zero_idx[2], zero_idx[3]);
zero_idx[10] = _mm_or_si128(zero_idx[4], zero_idx[5]);
zero_idx[11] = _mm_or_si128(zero_idx[6], zero_idx[7]);
zero_idx[12] = _mm_or_si128(zero_idx[8], zero_idx[9]);
zero_idx[13] = _mm_or_si128(zero_idx[10], zero_idx[11]);
zero_idx[14] = _mm_or_si128(zero_idx[12], zero_idx[13]);
if (_mm_movemask_epi8(_mm_cmpeq_epi32(zero_idx[14], zero)) == 0xFFFF) {
col[i32 + 0] = _mm_setzero_si128();
col[i32 + 1] = _mm_setzero_si128();
col[i32 + 2] = _mm_setzero_si128();
col[i32 + 3] = _mm_setzero_si128();
col[i32 + 4] = _mm_setzero_si128();
col[i32 + 5] = _mm_setzero_si128();
col[i32 + 6] = _mm_setzero_si128();
col[i32 + 7] = _mm_setzero_si128();
col[i32 + 8] = _mm_setzero_si128();
col[i32 + 9] = _mm_setzero_si128();
col[i32 + 10] = _mm_setzero_si128();
col[i32 + 11] = _mm_setzero_si128();
col[i32 + 12] = _mm_setzero_si128();
col[i32 + 13] = _mm_setzero_si128();
col[i32 + 14] = _mm_setzero_si128();
col[i32 + 15] = _mm_setzero_si128();
col[i32 + 16] = _mm_setzero_si128();
col[i32 + 17] = _mm_setzero_si128();
col[i32 + 18] = _mm_setzero_si128();
col[i32 + 19] = _mm_setzero_si128();
col[i32 + 20] = _mm_setzero_si128();
col[i32 + 21] = _mm_setzero_si128();
col[i32 + 22] = _mm_setzero_si128();
col[i32 + 23] = _mm_setzero_si128();
col[i32 + 24] = _mm_setzero_si128();
col[i32 + 25] = _mm_setzero_si128();
col[i32 + 26] = _mm_setzero_si128();
col[i32 + 27] = _mm_setzero_si128();
col[i32 + 28] = _mm_setzero_si128();
col[i32 + 29] = _mm_setzero_si128();
col[i32 + 30] = _mm_setzero_si128();
col[i32 + 31] = _mm_setzero_si128();
continue;
}
// Transpose 32x8 block to 8x32 block
array_transpose_8x8(in, in);
array_transpose_8x8(in + 8, in + 8);
array_transpose_8x8(in + 16, in + 16);
array_transpose_8x8(in + 24, in + 24);
IDCT32(in, in + 16)
// 1_D: Store 32 intermediate results for each 8x32 block.
col[i32 + 0] = _mm_add_epi16(stp1_0, stp1_31);
col[i32 + 1] = _mm_add_epi16(stp1_1, stp1_30);
col[i32 + 2] = _mm_add_epi16(stp1_2, stp1_29);
col[i32 + 3] = _mm_add_epi16(stp1_3, stp1_28);
col[i32 + 4] = _mm_add_epi16(stp1_4, stp1_27);
col[i32 + 5] = _mm_add_epi16(stp1_5, stp1_26);
col[i32 + 6] = _mm_add_epi16(stp1_6, stp1_25);
col[i32 + 7] = _mm_add_epi16(stp1_7, stp1_24);
col[i32 + 8] = _mm_add_epi16(stp1_8, stp1_23);
col[i32 + 9] = _mm_add_epi16(stp1_9, stp1_22);
col[i32 + 10] = _mm_add_epi16(stp1_10, stp1_21);
col[i32 + 11] = _mm_add_epi16(stp1_11, stp1_20);
col[i32 + 12] = _mm_add_epi16(stp1_12, stp1_19);
col[i32 + 13] = _mm_add_epi16(stp1_13, stp1_18);
col[i32 + 14] = _mm_add_epi16(stp1_14, stp1_17);
col[i32 + 15] = _mm_add_epi16(stp1_15, stp1_16);
col[i32 + 16] = _mm_sub_epi16(stp1_15, stp1_16);
col[i32 + 17] = _mm_sub_epi16(stp1_14, stp1_17);
col[i32 + 18] = _mm_sub_epi16(stp1_13, stp1_18);
col[i32 + 19] = _mm_sub_epi16(stp1_12, stp1_19);
col[i32 + 20] = _mm_sub_epi16(stp1_11, stp1_20);
col[i32 + 21] = _mm_sub_epi16(stp1_10, stp1_21);
col[i32 + 22] = _mm_sub_epi16(stp1_9, stp1_22);
col[i32 + 23] = _mm_sub_epi16(stp1_8, stp1_23);
col[i32 + 24] = _mm_sub_epi16(stp1_7, stp1_24);
col[i32 + 25] = _mm_sub_epi16(stp1_6, stp1_25);
col[i32 + 26] = _mm_sub_epi16(stp1_5, stp1_26);
col[i32 + 27] = _mm_sub_epi16(stp1_4, stp1_27);
col[i32 + 28] = _mm_sub_epi16(stp1_3, stp1_28);
col[i32 + 29] = _mm_sub_epi16(stp1_2, stp1_29);
col[i32 + 30] = _mm_sub_epi16(stp1_1, stp1_30);
col[i32 + 31] = _mm_sub_epi16(stp1_0, stp1_31);
}
for (i = 0; i < 4; i++) {
// Second 1-D idct
j = i << 3;
// Transpose 32x8 block to 8x32 block
array_transpose_8x8(col + j, in);
array_transpose_8x8(col + j + 32, in + 8);
array_transpose_8x8(col + j + 64, in + 16);
array_transpose_8x8(col + j + 96, in + 24);
IDCT32(in, in + 16)
// 2_D: Calculate the results and store them to destination.
in[0] = _mm_add_epi16(stp1_0, stp1_31);
in[1] = _mm_add_epi16(stp1_1, stp1_30);
in[2] = _mm_add_epi16(stp1_2, stp1_29);
in[3] = _mm_add_epi16(stp1_3, stp1_28);
in[4] = _mm_add_epi16(stp1_4, stp1_27);
in[5] = _mm_add_epi16(stp1_5, stp1_26);
in[6] = _mm_add_epi16(stp1_6, stp1_25);
in[7] = _mm_add_epi16(stp1_7, stp1_24);
in[8] = _mm_add_epi16(stp1_8, stp1_23);
in[9] = _mm_add_epi16(stp1_9, stp1_22);
in[10] = _mm_add_epi16(stp1_10, stp1_21);
in[11] = _mm_add_epi16(stp1_11, stp1_20);
in[12] = _mm_add_epi16(stp1_12, stp1_19);
in[13] = _mm_add_epi16(stp1_13, stp1_18);
in[14] = _mm_add_epi16(stp1_14, stp1_17);
in[15] = _mm_add_epi16(stp1_15, stp1_16);
in[16] = _mm_sub_epi16(stp1_15, stp1_16);
in[17] = _mm_sub_epi16(stp1_14, stp1_17);
in[18] = _mm_sub_epi16(stp1_13, stp1_18);
in[19] = _mm_sub_epi16(stp1_12, stp1_19);
in[20] = _mm_sub_epi16(stp1_11, stp1_20);
in[21] = _mm_sub_epi16(stp1_10, stp1_21);
in[22] = _mm_sub_epi16(stp1_9, stp1_22);
in[23] = _mm_sub_epi16(stp1_8, stp1_23);
in[24] = _mm_sub_epi16(stp1_7, stp1_24);
in[25] = _mm_sub_epi16(stp1_6, stp1_25);
in[26] = _mm_sub_epi16(stp1_5, stp1_26);
in[27] = _mm_sub_epi16(stp1_4, stp1_27);
in[28] = _mm_sub_epi16(stp1_3, stp1_28);
in[29] = _mm_sub_epi16(stp1_2, stp1_29);
in[30] = _mm_sub_epi16(stp1_1, stp1_30);
in[31] = _mm_sub_epi16(stp1_0, stp1_31);
for (j = 0; j < 32; ++j) {
// Final rounding and shift
in[j] = _mm_adds_epi16(in[j], final_rounding);
in[j] = _mm_srai_epi16(in[j], 6);
RECON_AND_STORE(dest + j * stride, in[j]);
}
dest += 8;
}
}
void aom_idct32x32_1_add_sse2(const tran_low_t *input, uint8_t *dest,
int stride) {
__m128i dc_value;
const __m128i zero = _mm_setzero_si128();
int a, j;
a = (int)dct_const_round_shift(input[0] * cospi_16_64);
a = (int)dct_const_round_shift(a * cospi_16_64);
a = ROUND_POWER_OF_TWO(a, 6);
if (a == 0) return;
dc_value = _mm_set1_epi16(a);
for (j = 0; j < 32; ++j) {
RECON_AND_STORE(dest + 0 + j * stride, dc_value);
RECON_AND_STORE(dest + 8 + j * stride, dc_value);
RECON_AND_STORE(dest + 16 + j * stride, dc_value);
RECON_AND_STORE(dest + 24 + j * stride, dc_value);
}
}
// Apply a 32-element IDCT to 8 columns. This does not do any transposition
// of its input - the caller is expected to have done that.
// The input buffers are the top and bottom halves of an 8x32 block.
void idct32_8col(__m128i *in0, __m128i *in1) {
const __m128i rounding = _mm_set1_epi32(DCT_CONST_ROUNDING);
// idct constants for each stage
const __m128i stg1_0 = pair_set_epi16(cospi_31_64, -cospi_1_64);
const __m128i stg1_1 = pair_set_epi16(cospi_1_64, cospi_31_64);
const __m128i stg1_2 = pair_set_epi16(cospi_15_64, -cospi_17_64);
const __m128i stg1_3 = pair_set_epi16(cospi_17_64, cospi_15_64);
const __m128i stg1_4 = pair_set_epi16(cospi_23_64, -cospi_9_64);
const __m128i stg1_5 = pair_set_epi16(cospi_9_64, cospi_23_64);
const __m128i stg1_6 = pair_set_epi16(cospi_7_64, -cospi_25_64);
const __m128i stg1_7 = pair_set_epi16(cospi_25_64, cospi_7_64);
const __m128i stg1_8 = pair_set_epi16(cospi_27_64, -cospi_5_64);
const __m128i stg1_9 = pair_set_epi16(cospi_5_64, cospi_27_64);
const __m128i stg1_10 = pair_set_epi16(cospi_11_64, -cospi_21_64);
const __m128i stg1_11 = pair_set_epi16(cospi_21_64, cospi_11_64);
const __m128i stg1_12 = pair_set_epi16(cospi_19_64, -cospi_13_64);
const __m128i stg1_13 = pair_set_epi16(cospi_13_64, cospi_19_64);
const __m128i stg1_14 = pair_set_epi16(cospi_3_64, -cospi_29_64);
const __m128i stg1_15 = pair_set_epi16(cospi_29_64, cospi_3_64);
const __m128i stg2_0 = pair_set_epi16(cospi_30_64, -cospi_2_64);
const __m128i stg2_1 = pair_set_epi16(cospi_2_64, cospi_30_64);
const __m128i stg2_2 = pair_set_epi16(cospi_14_64, -cospi_18_64);
const __m128i stg2_3 = pair_set_epi16(cospi_18_64, cospi_14_64);
const __m128i stg2_4 = pair_set_epi16(cospi_22_64, -cospi_10_64);
const __m128i stg2_5 = pair_set_epi16(cospi_10_64, cospi_22_64);
const __m128i stg2_6 = pair_set_epi16(cospi_6_64, -cospi_26_64);
const __m128i stg2_7 = pair_set_epi16(cospi_26_64, cospi_6_64);
const __m128i stg3_0 = pair_set_epi16(cospi_28_64, -cospi_4_64);
const __m128i stg3_1 = pair_set_epi16(cospi_4_64, cospi_28_64);
const __m128i stg3_2 = pair_set_epi16(cospi_12_64, -cospi_20_64);
const __m128i stg3_3 = pair_set_epi16(cospi_20_64, cospi_12_64);
const __m128i stg3_4 = pair_set_epi16(-cospi_4_64, cospi_28_64);
const __m128i stg3_5 = pair_set_epi16(cospi_28_64, cospi_4_64);
const __m128i stg3_6 = pair_set_epi16(-cospi_28_64, -cospi_4_64);
const __m128i stg3_8 = pair_set_epi16(-cospi_20_64, cospi_12_64);
const __m128i stg3_9 = pair_set_epi16(cospi_12_64, cospi_20_64);
const __m128i stg3_10 = pair_set_epi16(-cospi_12_64, -cospi_20_64);
const __m128i stg4_0 = pair_set_epi16(cospi_16_64, cospi_16_64);
const __m128i stg4_1 = pair_set_epi16(cospi_16_64, -cospi_16_64);
const __m128i stg4_2 = pair_set_epi16(cospi_24_64, -cospi_8_64);
const __m128i stg4_3 = pair_set_epi16(cospi_8_64, cospi_24_64);
const __m128i stg4_4 = pair_set_epi16(-cospi_8_64, cospi_24_64);
const __m128i stg4_5 = pair_set_epi16(cospi_24_64, cospi_8_64);
const __m128i stg4_6 = pair_set_epi16(-cospi_24_64, -cospi_8_64);
const __m128i stg6_0 = pair_set_epi16(-cospi_16_64, cospi_16_64);
__m128i stp1_0, stp1_1, stp1_2, stp1_3, stp1_4, stp1_5, stp1_6, stp1_7,
stp1_8, stp1_9, stp1_10, stp1_11, stp1_12, stp1_13, stp1_14, stp1_15,
stp1_16, stp1_17, stp1_18, stp1_19, stp1_20, stp1_21, stp1_22, stp1_23,
stp1_24, stp1_25, stp1_26, stp1_27, stp1_28, stp1_29, stp1_30, stp1_31;
__m128i stp2_0, stp2_1, stp2_2, stp2_3, stp2_4, stp2_5, stp2_6, stp2_7,
stp2_8, stp2_9, stp2_10, stp2_11, stp2_12, stp2_13, stp2_14, stp2_15,
stp2_16, stp2_17, stp2_18, stp2_19, stp2_20, stp2_21, stp2_22, stp2_23,
stp2_24, stp2_25, stp2_26, stp2_27, stp2_28, stp2_29, stp2_30, stp2_31;
__m128i tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
IDCT32(in0, in1)
// 2_D: Calculate the results and store them to destination.
in0[0] = _mm_add_epi16(stp1_0, stp1_31);
in0[1] = _mm_add_epi16(stp1_1, stp1_30);
in0[2] = _mm_add_epi16(stp1_2, stp1_29);
in0[3] = _mm_add_epi16(stp1_3, stp1_28);
in0[4] = _mm_add_epi16(stp1_4, stp1_27);
in0[5] = _mm_add_epi16(stp1_5, stp1_26);
in0[6] = _mm_add_epi16(stp1_6, stp1_25);
in0[7] = _mm_add_epi16(stp1_7, stp1_24);
in0[8] = _mm_add_epi16(stp1_8, stp1_23);
in0[9] = _mm_add_epi16(stp1_9, stp1_22);
in0[10] = _mm_add_epi16(stp1_10, stp1_21);
in0[11] = _mm_add_epi16(stp1_11, stp1_20);
in0[12] = _mm_add_epi16(stp1_12, stp1_19);
in0[13] = _mm_add_epi16(stp1_13, stp1_18);
in0[14] = _mm_add_epi16(stp1_14, stp1_17);
in0[15] = _mm_add_epi16(stp1_15, stp1_16);
in1[0] = _mm_sub_epi16(stp1_15, stp1_16);
in1[1] = _mm_sub_epi16(stp1_14, stp1_17);
in1[2] = _mm_sub_epi16(stp1_13, stp1_18);
in1[3] = _mm_sub_epi16(stp1_12, stp1_19);
in1[4] = _mm_sub_epi16(stp1_11, stp1_20);
in1[5] = _mm_sub_epi16(stp1_10, stp1_21);
in1[6] = _mm_sub_epi16(stp1_9, stp1_22);
in1[7] = _mm_sub_epi16(stp1_8, stp1_23);
in1[8] = _mm_sub_epi16(stp1_7, stp1_24);
in1[9] = _mm_sub_epi16(stp1_6, stp1_25);
in1[10] = _mm_sub_epi16(stp1_5, stp1_26);
in1[11] = _mm_sub_epi16(stp1_4, stp1_27);
in1[12] = _mm_sub_epi16(stp1_3, stp1_28);
in1[13] = _mm_sub_epi16(stp1_2, stp1_29);
in1[14] = _mm_sub_epi16(stp1_1, stp1_30);
in1[15] = _mm_sub_epi16(stp1_0, stp1_31);
}
#if CONFIG_HIGHBITDEPTH
static INLINE __m128i clamp_high_sse2(__m128i value, int bd) {
__m128i ubounded, retval;
const __m128i zero = _mm_set1_epi16(0);
const __m128i one = _mm_set1_epi16(1);
const __m128i max = _mm_subs_epi16(_mm_slli_epi16(one, bd), one);
ubounded = _mm_cmpgt_epi16(value, max);
retval = _mm_andnot_si128(ubounded, value);
ubounded = _mm_and_si128(ubounded, max);
retval = _mm_or_si128(retval, ubounded);
retval = _mm_and_si128(retval, _mm_cmpgt_epi16(retval, zero));
return retval;
}
void aom_highbd_idct4x4_16_add_sse2(const tran_low_t *input, uint8_t *dest8,
int stride, int bd) {
tran_low_t out[4 * 4];
tran_low_t *outptr = out;
int i, j;
__m128i inptr[4];
__m128i sign_bits[2];
__m128i temp_mm, min_input, max_input;
int test;
uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
int optimised_cols = 0;
const __m128i zero = _mm_set1_epi16(0);
const __m128i eight = _mm_set1_epi16(8);
const __m128i max = _mm_set1_epi16(12043);
const __m128i min = _mm_set1_epi16(-12043);
// Load input into __m128i
inptr[0] = _mm_loadu_si128((const __m128i *)input);
inptr[1] = _mm_loadu_si128((const __m128i *)(input + 4));
inptr[2] = _mm_loadu_si128((const __m128i *)(input + 8));
inptr[3] = _mm_loadu_si128((const __m128i *)(input + 12));
// Pack to 16 bits
inptr[0] = _mm_packs_epi32(inptr[0], inptr[1]);
inptr[1] = _mm_packs_epi32(inptr[2], inptr[3]);
max_input = _mm_max_epi16(inptr[0], inptr[1]);
min_input = _mm_min_epi16(inptr[0], inptr[1]);
max_input = _mm_cmpgt_epi16(max_input, max);
min_input = _mm_cmplt_epi16(min_input, min);
temp_mm = _mm_or_si128(max_input, min_input);
test = _mm_movemask_epi8(temp_mm);
if (!test) {
// Do the row transform
aom_idct4_sse2(inptr);
// Check the min & max values
max_input = _mm_max_epi16(inptr[0], inptr[1]);
min_input = _mm_min_epi16(inptr[0], inptr[1]);
max_input = _mm_cmpgt_epi16(max_input, max);
min_input = _mm_cmplt_epi16(min_input, min);
temp_mm = _mm_or_si128(max_input, min_input);
test = _mm_movemask_epi8(temp_mm);
if (test) {
array_transpose_4x4(inptr);
sign_bits[0] = _mm_cmplt_epi16(inptr[0], zero);
sign_bits[1] = _mm_cmplt_epi16(inptr[1], zero);
inptr[3] = _mm_unpackhi_epi16(inptr[1], sign_bits[1]);
inptr[2] = _mm_unpacklo_epi16(inptr[1], sign_bits[1]);
inptr[1] = _mm_unpackhi_epi16(inptr[0], sign_bits[0]);
inptr[0] = _mm_unpacklo_epi16(inptr[0], sign_bits[0]);
_mm_storeu_si128((__m128i *)outptr, inptr[0]);
_mm_storeu_si128((__m128i *)(outptr + 4), inptr[1]);
_mm_storeu_si128((__m128i *)(outptr + 8), inptr[2]);
_mm_storeu_si128((__m128i *)(outptr + 12), inptr[3]);
} else {
// Set to use the optimised transform for the column
optimised_cols = 1;
}
} else {
// Run the un-optimised row transform
for (i = 0; i < 4; ++i) {
aom_highbd_idct4_c(input, outptr, bd);
input += 4;
outptr += 4;
}
}
if (optimised_cols) {
aom_idct4_sse2(inptr);
// Final round and shift
inptr[0] = _mm_add_epi16(inptr[0], eight);
inptr[1] = _mm_add_epi16(inptr[1], eight);
inptr[0] = _mm_srai_epi16(inptr[0], 4);
inptr[1] = _mm_srai_epi16(inptr[1], 4);
// Reconstruction and Store
{
__m128i d0 = _mm_loadl_epi64((const __m128i *)dest);
__m128i d2 = _mm_loadl_epi64((const __m128i *)(dest + stride * 2));
d0 = _mm_unpacklo_epi64(
d0, _mm_loadl_epi64((const __m128i *)(dest + stride)));
d2 = _mm_unpacklo_epi64(
d2, _mm_loadl_epi64((const __m128i *)(dest + stride * 3)));
d0 = clamp_high_sse2(_mm_adds_epi16(d0, inptr[0]), bd);
d2 = clamp_high_sse2(_mm_adds_epi16(d2, inptr[1]), bd);
// store input0
_mm_storel_epi64((__m128i *)dest, d0);
// store input1
d0 = _mm_srli_si128(d0, 8);
_mm_storel_epi64((__m128i *)(dest + stride), d0);
// store input2
_mm_storel_epi64((__m128i *)(dest + stride * 2), d2);
// store input3
d2 = _mm_srli_si128(d2, 8);
_mm_storel_epi64((__m128i *)(dest + stride * 3), d2);
}
} else {
// Run the un-optimised column transform
tran_low_t temp_in[4], temp_out[4];
// Columns
for (i = 0; i < 4; ++i) {
for (j = 0; j < 4; ++j) temp_in[j] = out[j * 4 + i];
aom_highbd_idct4_c(temp_in, temp_out, bd);
for (j = 0; j < 4; ++j) {
dest[j * stride + i] = highbd_clip_pixel_add(
dest[j * stride + i], ROUND_POWER_OF_TWO(temp_out[j], 4), bd);
}
}
}
}
void aom_highbd_idct8x8_10_add_sse2(const tran_low_t *input, uint8_t *dest8,
int stride, int bd) {
tran_low_t out[8 * 8] = { 0 };
tran_low_t *outptr = out;
int i, j, test;
__m128i inptr[8];
__m128i min_input, max_input, temp1, temp2, sign_bits;
uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
const __m128i zero = _mm_set1_epi16(0);
const __m128i sixteen = _mm_set1_epi16(16);
const __m128i max = _mm_set1_epi16(6201);
const __m128i min = _mm_set1_epi16(-6201);
int optimised_cols = 0;
// Load input into __m128i & pack to 16 bits
for (i = 0; i < 8; i++) {
temp1 = _mm_loadu_si128((const __m128i *)(input + 8 * i));
temp2 = _mm_loadu_si128((const __m128i *)(input + 8 * i + 4));
inptr[i] = _mm_packs_epi32(temp1, temp2);
}
// Find the min & max for the row transform
// only first 4 row has non-zero coefs
max_input = _mm_max_epi16(inptr[0], inptr[1]);
min_input = _mm_min_epi16(inptr[0], inptr[1]);
for (i = 2; i < 4; i++) {
max_input = _mm_max_epi16(max_input, inptr[i]);
min_input = _mm_min_epi16(min_input, inptr[i]);
}
max_input = _mm_cmpgt_epi16(max_input, max);
min_input = _mm_cmplt_epi16(min_input, min);
temp1 = _mm_or_si128(max_input, min_input);
test = _mm_movemask_epi8(temp1);
if (!test) {
// Do the row transform
aom_idct8_sse2(inptr);
// Find the min & max for the column transform
// N.B. Only first 4 cols contain non-zero coeffs
max_input = _mm_max_epi16(inptr[0], inptr[1]);
min_input = _mm_min_epi16(inptr[0], inptr[1]);
for (i = 2; i < 8; i++) {
max_input = _mm_max_epi16(max_input, inptr[i]);
min_input = _mm_min_epi16(min_input, inptr[i]);
}
max_input = _mm_cmpgt_epi16(max_input, max);
min_input = _mm_cmplt_epi16(min_input, min);
temp1 = _mm_or_si128(max_input, min_input);
test = _mm_movemask_epi8(temp1);
if (test) {
// Use fact only first 4 rows contain non-zero coeffs
array_transpose_4X8(inptr, inptr);
for (i = 0; i < 4; i++) {
sign_bits = _mm_cmplt_epi16(inptr[i], zero);
temp1 = _mm_unpackhi_epi16(inptr[i], sign_bits);
temp2 = _mm_unpacklo_epi16(inptr[i], sign_bits);
_mm_storeu_si128((__m128i *)(outptr + 4 * (2 * i + 1)), temp1);
_mm_storeu_si128((__m128i *)(outptr + 4 * (2 * i)), temp2);
}
} else {
// Set to use the optimised transform for the column
optimised_cols = 1;
}
} else {
// Run the un-optimised row transform
for (i = 0; i < 4; ++i) {
aom_highbd_idct8_c(input, outptr, bd);
input += 8;
outptr += 8;
}
}
if (optimised_cols) {
aom_idct8_sse2(inptr);
// Final round & shift and Reconstruction and Store
{
__m128i d[8];
for (i = 0; i < 8; i++) {
inptr[i] = _mm_add_epi16(inptr[i], sixteen);
d[i] = _mm_loadu_si128((const __m128i *)(dest + stride * i));
inptr[i] = _mm_srai_epi16(inptr[i], 5);
d[i] = clamp_high_sse2(_mm_adds_epi16(d[i], inptr[i]), bd);
// Store
_mm_storeu_si128((__m128i *)(dest + stride * i), d[i]);
}
}
} else {
// Run the un-optimised column transform
tran_low_t temp_in[8], temp_out[8];
for (i = 0; i < 8; ++i) {
for (j = 0; j < 8; ++j) temp_in[j] = out[j * 8 + i];
aom_highbd_idct8_c(temp_in, temp_out, bd);
for (j = 0; j < 8; ++j) {
dest[j * stride + i] = highbd_clip_pixel_add(
dest[j * stride + i], ROUND_POWER_OF_TWO(temp_out[j], 5), bd);
}
}
}
}
#endif // CONFIG_HIGHBITDEPTH