ref: 98967645a1fbe9ea406a7b17e01d5778effbd2a1
dir: /vpx_dsp/x86/inv_txfm_sse2.c/
/*
* Copyright (c) 2015 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "./vpx_dsp_rtcd.h"
#include "vpx_dsp/x86/inv_txfm_sse2.h"
#include "vpx_dsp/x86/transpose_sse2.h"
#include "vpx_dsp/x86/txfm_common_sse2.h"
static INLINE void transpose_16bit_4(__m128i *res) {
const __m128i tr0_0 = _mm_unpacklo_epi16(res[0], res[1]);
const __m128i tr0_1 = _mm_unpackhi_epi16(res[0], res[1]);
res[0] = _mm_unpacklo_epi16(tr0_0, tr0_1);
res[1] = _mm_unpackhi_epi16(tr0_0, tr0_1);
}
void vpx_idct4x4_16_add_sse2(const tran_low_t *input, uint8_t *dest,
int stride) {
const __m128i eight = _mm_set1_epi16(8);
__m128i in[2];
// Rows
in[0] = load_input_data(input);
in[1] = load_input_data(input + 8);
idct4_sse2(in);
// Columns
idct4_sse2(in);
// Final round and shift
in[0] = _mm_add_epi16(in[0], eight);
in[1] = _mm_add_epi16(in[1], eight);
in[0] = _mm_srai_epi16(in[0], 4);
in[1] = _mm_srai_epi16(in[1], 4);
recon_and_store4x4_sse2(in, dest, stride);
}
void vpx_idct4x4_1_add_sse2(const tran_low_t *input, uint8_t *dest,
int stride) {
const __m128i zero = _mm_setzero_si128();
int a;
__m128i dc_value, d[2];
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);
dc_value = _mm_set1_epi16(a);
// Reconstruction and Store
d[0] = _mm_cvtsi32_si128(*(const int *)(dest));
d[1] = _mm_cvtsi32_si128(*(const int *)(dest + stride * 3));
d[0] = _mm_unpacklo_epi32(d[0],
_mm_cvtsi32_si128(*(const int *)(dest + stride)));
d[1] = _mm_unpacklo_epi32(
_mm_cvtsi32_si128(*(const int *)(dest + stride * 2)), d[1]);
d[0] = _mm_unpacklo_epi8(d[0], zero);
d[1] = _mm_unpacklo_epi8(d[1], zero);
d[0] = _mm_add_epi16(d[0], dc_value);
d[1] = _mm_add_epi16(d[1], dc_value);
d[0] = _mm_packus_epi16(d[0], d[1]);
*(int *)dest = _mm_cvtsi128_si32(d[0]);
d[0] = _mm_srli_si128(d[0], 4);
*(int *)(dest + stride) = _mm_cvtsi128_si32(d[0]);
d[0] = _mm_srli_si128(d[0], 4);
*(int *)(dest + stride * 2) = _mm_cvtsi128_si32(d[0]);
d[0] = _mm_srli_si128(d[0], 4);
*(int *)(dest + stride * 3) = _mm_cvtsi128_si32(d[0]);
}
void 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);
__m128i u[2];
transpose_16bit_4(in);
// stage 1
u[0] = _mm_unpacklo_epi16(in[0], in[1]);
u[1] = _mm_unpackhi_epi16(in[0], in[1]);
u[0] = idct_calc_wraplow_sse2(k__cospi_p16_p16, k__cospi_p16_m16, u[0]);
u[1] = idct_calc_wraplow_sse2(k__cospi_p08_p24, k__cospi_p24_m08, u[1]);
// 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 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;
transpose_16bit_4(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]);
}
// Multiply elements by constants and add them together.
static INLINE void multiplication_and_add(
const __m128i *const in0, const __m128i *const in1,
const __m128i *const in2, const __m128i *const in3,
const __m128i *const cst0, const __m128i *const cst1,
const __m128i *const cst2, const __m128i *const cst3, __m128i *const res0,
__m128i *const res1, __m128i *const res2, __m128i *const res3) {
const __m128i lo_0 = _mm_unpacklo_epi16(*in0, *in1);
const __m128i hi_0 = _mm_unpackhi_epi16(*in0, *in1);
const __m128i lo_1 = _mm_unpacklo_epi16(*in2, *in3);
const __m128i hi_1 = _mm_unpackhi_epi16(*in2, *in3);
*res0 = idct_calc_wraplow_sse2(lo_0, hi_0, *cst0);
*res1 = idct_calc_wraplow_sse2(lo_0, hi_0, *cst1);
*res2 = idct_calc_wraplow_sse2(lo_1, hi_1, *cst2);
*res3 = idct_calc_wraplow_sse2(lo_1, hi_1, *cst3);
}
static void multiplication_and_add_2(const __m128i *const in0,
const __m128i *const in1,
const __m128i *const cst0,
const __m128i *const cst1,
__m128i *const res0, __m128i *const res1) {
const __m128i lo = _mm_unpacklo_epi16(*in0, *in1);
const __m128i hi = _mm_unpackhi_epi16(*in0, *in1);
*res0 = idct_calc_wraplow_sse2(lo, hi, *cst0);
*res1 = idct_calc_wraplow_sse2(lo, hi, *cst1);
}
static INLINE void idct8(const __m128i *const in, __m128i *const out) {
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 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;
/* Stage1 */
multiplication_and_add(&in[1], &in[7], &in[3], &in[5], &stg1_0, &stg1_1,
&stg1_2, &stg1_3, &stp1_4, &stp1_7, &stp1_5, &stp1_6);
/* Stage2 */
multiplication_and_add(&in[0], &in[4], &in[2], &in[6], &stg2_0, &stg2_1,
&stg2_2, &stg2_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);
/* Stage3 */
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);
multiplication_and_add_2(&stp2_6, &stp2_5, &stg2_1, &stg2_0, &stp1_5,
&stp1_6);
/* Stage4 */
out[0] = _mm_add_epi16(stp1_0, stp2_7);
out[1] = _mm_add_epi16(stp1_1, stp1_6);
out[2] = _mm_add_epi16(stp1_2, stp1_5);
out[3] = _mm_add_epi16(stp1_3, stp2_4);
out[4] = _mm_sub_epi16(stp1_3, stp2_4);
out[5] = _mm_sub_epi16(stp1_2, stp1_5);
out[6] = _mm_sub_epi16(stp1_1, stp1_6);
out[7] = _mm_sub_epi16(stp1_0, stp2_7);
}
void vpx_idct8x8_64_add_sse2(const tran_low_t *input, uint8_t *dest,
int stride) {
const __m128i final_rounding = _mm_set1_epi16(1 << 4);
__m128i in[8];
int i;
// Load input data.
in[0] = load_input_data(input);
in[1] = load_input_data(input + 8 * 1);
in[2] = load_input_data(input + 8 * 2);
in[3] = load_input_data(input + 8 * 3);
in[4] = load_input_data(input + 8 * 4);
in[5] = load_input_data(input + 8 * 5);
in[6] = load_input_data(input + 8 * 6);
in[7] = load_input_data(input + 8 * 7);
// 2-D
for (i = 0; i < 2; i++) {
// 8x8 Transpose is copied from vpx_fdct8x8_sse2()
transpose_16bit_8x8(in, in);
// 4-stage 1D idct8x8
idct8(in, in);
}
// Final rounding and shift
in[0] = _mm_adds_epi16(in[0], final_rounding);
in[1] = _mm_adds_epi16(in[1], final_rounding);
in[2] = _mm_adds_epi16(in[2], final_rounding);
in[3] = _mm_adds_epi16(in[3], final_rounding);
in[4] = _mm_adds_epi16(in[4], final_rounding);
in[5] = _mm_adds_epi16(in[5], final_rounding);
in[6] = _mm_adds_epi16(in[6], final_rounding);
in[7] = _mm_adds_epi16(in[7], final_rounding);
in[0] = _mm_srai_epi16(in[0], 5);
in[1] = _mm_srai_epi16(in[1], 5);
in[2] = _mm_srai_epi16(in[2], 5);
in[3] = _mm_srai_epi16(in[3], 5);
in[4] = _mm_srai_epi16(in[4], 5);
in[5] = _mm_srai_epi16(in[5], 5);
in[6] = _mm_srai_epi16(in[6], 5);
in[7] = _mm_srai_epi16(in[7], 5);
recon_and_store(dest + 0 * stride, in[0]);
recon_and_store(dest + 1 * stride, in[1]);
recon_and_store(dest + 2 * stride, in[2]);
recon_and_store(dest + 3 * stride, in[3]);
recon_and_store(dest + 4 * stride, in[4]);
recon_and_store(dest + 5 * stride, in[5]);
recon_and_store(dest + 6 * stride, in[6]);
recon_and_store(dest + 7 * stride, in[7]);
}
void vpx_idct8x8_1_add_sse2(const tran_low_t *input, uint8_t *dest,
int stride) {
__m128i dc_value;
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);
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 idct8_sse2(__m128i *in) {
// 8x8 Transpose is copied from vpx_fdct8x8_sse2()
transpose_16bit_8x8(in, in);
// 4-stage 1D idct8x8
idct8(in, in);
}
void 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
transpose_16bit_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);
s2 = idct_calc_wraplow_sse2(u0, u1, k__cospi_p16_p16);
s3 = idct_calc_wraplow_sse2(u0, u1, k__cospi_p16_m16);
s6 = idct_calc_wraplow_sse2(u2, u3, k__cospi_p16_p16);
s7 = idct_calc_wraplow_sse2(u2, u3, k__cospi_p16_m16);
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 vpx_idct8x8_12_add_sse2(const tran_low_t *input, uint8_t *dest,
int stride) {
const __m128i zero = _mm_setzero_si128();
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 in[8];
__m128i stp1_2, stp1_3, stp1_4, stp1_5;
__m128i stp2_0, stp2_2, stp2_4, stp2_5, stp2_6;
__m128i tmp[4];
// Rows. Load 4-row input data.
in[0] = load_input_data(input);
in[1] = load_input_data(input + 8 * 1);
in[2] = load_input_data(input + 8 * 2);
in[3] = load_input_data(input + 8 * 3);
// 8x4 Transpose
transpose_16bit_4x4(in, in);
// Stage1
{
const __m128i lo_17 = _mm_unpackhi_epi16(in[0], zero);
const __m128i lo_35 = _mm_unpackhi_epi16(in[1], zero);
stp1_4 = idct_calc_wraplow_sse2(stg1_0, stg1_1, lo_17);
stp1_5 = idct_calc_wraplow_sse2(stg1_2, stg1_3, lo_35);
}
// Stage2
{
const __m128i lo_04 = _mm_unpacklo_epi16(in[0], zero);
const __m128i lo_26 = _mm_unpacklo_epi16(in[1], zero);
stp2_0 = idct_calc_wraplow_sse2(stg2_0, stg2_1, lo_04);
stp2_2 = idct_calc_wraplow_sse2(stg2_3, stg2_2, lo_26);
tmp[0] = _mm_add_epi16(stp1_4, stp1_5);
tmp[1] = _mm_sub_epi16(stp1_4, stp1_5);
stp2_4 = tmp[0];
stp2_5 = _mm_unpacklo_epi64(tmp[1], zero);
stp2_6 = _mm_unpackhi_epi64(tmp[1], zero);
}
// Stage3
{
const __m128i lo_56 = _mm_unpacklo_epi16(stp2_5, stp2_6);
tmp[0] = _mm_add_epi16(stp2_0, stp2_2);
tmp[1] = _mm_sub_epi16(stp2_0, stp2_2);
stp1_2 = _mm_unpackhi_epi64(tmp[1], tmp[0]);
stp1_3 = _mm_unpacklo_epi64(tmp[1], tmp[0]);
stp1_5 = idct_calc_wraplow_sse2(stg3_0, stg2_0, lo_56); // stg3_1 = stg2_0
}
// Stage4
tmp[0] = _mm_add_epi16(stp1_3, stp2_4);
tmp[1] = _mm_add_epi16(stp1_2, stp1_5);
tmp[2] = _mm_sub_epi16(stp1_3, stp2_4);
tmp[3] = _mm_sub_epi16(stp1_2, stp1_5);
idct8x8_12_transpose_16bit_4x8(tmp, in);
in[4] = in[5] = in[6] = in[7] = zero;
idct8(in, in);
// Final rounding and shift
in[0] = _mm_adds_epi16(in[0], final_rounding);
in[1] = _mm_adds_epi16(in[1], final_rounding);
in[2] = _mm_adds_epi16(in[2], final_rounding);
in[3] = _mm_adds_epi16(in[3], final_rounding);
in[4] = _mm_adds_epi16(in[4], final_rounding);
in[5] = _mm_adds_epi16(in[5], final_rounding);
in[6] = _mm_adds_epi16(in[6], final_rounding);
in[7] = _mm_adds_epi16(in[7], final_rounding);
in[0] = _mm_srai_epi16(in[0], 5);
in[1] = _mm_srai_epi16(in[1], 5);
in[2] = _mm_srai_epi16(in[2], 5);
in[3] = _mm_srai_epi16(in[3], 5);
in[4] = _mm_srai_epi16(in[4], 5);
in[5] = _mm_srai_epi16(in[5], 5);
in[6] = _mm_srai_epi16(in[6], 5);
in[7] = _mm_srai_epi16(in[7], 5);
recon_and_store(dest + 0 * stride, in[0]);
recon_and_store(dest + 1 * stride, in[1]);
recon_and_store(dest + 2 * stride, in[2]);
recon_and_store(dest + 3 * stride, in[3]);
recon_and_store(dest + 4 * stride, in[4]);
recon_and_store(dest + 5 * stride, in[5]);
recon_and_store(dest + 6 * stride, in[6]);
recon_and_store(dest + 7 * stride, in[7]);
}
#define IDCT16 \
/* Stage2 */ \
multiplication_and_add(&in[1], &in[15], &in[9], &in[7], &stg2_0, &stg2_1, \
&stg2_2, &stg2_3, &stp2_8, &stp2_15, &stp2_9, \
&stp2_14); \
\
multiplication_and_add(&in[5], &in[11], &in[13], &in[3], &stg2_4, &stg2_5, \
&stg2_6, &stg2_7, &stp2_10, &stp2_13, &stp2_11, \
&stp2_12); \
\
/* Stage3 */ \
multiplication_and_add(&in[2], &in[14], &in[10], &in[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 */ \
multiplication_and_add(&in[0], &in[8], &in[4], &in[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(&stp1_9, &stp1_14, &stp1_10, &stp1_13, &stg4_4, \
&stg4_5, &stg4_6, &stg4_7, &stp2_9, &stp2_14, \
&stp2_10, &stp2_13); \
\
/* Stage5 */ \
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); \
multiplication_and_add_2(&stp2_6, &stp2_5, &stg4_1, &stg4_0, &stp1_5, \
&stp1_6); \
\
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 */ \
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(&stp1_10, &stp1_13, &stp1_11, &stp1_12, &stg6_0, \
&stg4_0, &stg6_0, &stg4_0, &stp2_10, &stp2_13, \
&stp2_11, &stp2_12);
#define IDCT16_10 \
/* Stage2 */ \
multiplication_and_add(&in[1], &zero, &zero, &in[3], &stg2_0, &stg2_1, \
&stg2_6, &stg2_7, &stp1_8_0, &stp1_15, &stp1_11, \
&stp1_12_0); \
\
/* Stage3 */ \
multiplication_and_add_2(&in[2], &zero, &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 */ \
multiplication_and_add_2(&in[0], &zero, &stg4_0, &stg4_1, &stp1_0, &stp1_1); \
stp2_5 = stp2_4; \
stp2_6 = stp2_7; \
\
multiplication_and_add(&stp1_9, &stp1_14, &stp1_10, &stp1_13, &stg4_4, \
&stg4_5, &stg4_6, &stg4_7, &stp2_9, &stp2_14, \
&stp2_10, &stp2_13); \
\
/* Stage5 */ \
stp1_2 = stp1_1; \
stp1_3 = stp1_0; \
multiplication_and_add_2(&stp2_6, &stp2_5, &stg4_1, &stg4_0, &stp1_5, \
&stp1_6); \
\
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 */ \
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(&stp1_10, &stp1_13, &stp1_11, &stp1_12, &stg6_0, \
&stg4_0, &stg6_0, &stg4_0, &stp2_10, &stp2_13, \
&stp2_11, &stp2_12);
void vpx_idct16x16_256_add_sse2(const tran_low_t *input, uint8_t *dest,
int stride) {
const __m128i final_rounding = _mm_set1_epi16(1 << 5);
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;
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);
transpose_16bit_8x8(in, in);
transpose_16bit_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
transpose_16bit_8x8(l + i * 8, in);
transpose_16bit_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 vpx_idct16x16_1_add_sse2(const tran_low_t *input, uint8_t *dest,
int stride) {
__m128i dc_value;
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);
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;
}
}
static 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]);
in[7] = idct_calc_wraplow_sse2(u[0], u[1], k__cospi_m16_m16);
in[8] = idct_calc_wraplow_sse2(u[0], u[1], k__cospi_p16_m16);
in[4] = idct_calc_wraplow_sse2(u[2], u[3], k__cospi_p16_p16);
in[11] = idct_calc_wraplow_sse2(u[2], u[3], k__cospi_m16_p16);
in[6] = idct_calc_wraplow_sse2(u[4], u[5], k__cospi_p16_p16);
in[9] = idct_calc_wraplow_sse2(u[4], u[5], k__cospi_m16_p16);
in[5] = idct_calc_wraplow_sse2(u[6], u[7], k__cospi_m16_m16);
in[10] = idct_calc_wraplow_sse2(u[6], u[7], k__cospi_p16_m16);
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[12] = s[5];
in[13] = _mm_sub_epi16(kZero, s[13]);
in[14] = s[9];
in[15] = _mm_sub_epi16(kZero, s[1]);
}
static 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);
__m128i 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]);
s[8] = idct_calc_wraplow_sse2(u[0], u[1], k__cospi_p30_m02);
s[15] = idct_calc_wraplow_sse2(u[0], u[1], k__cospi_p02_p30);
s[9] = idct_calc_wraplow_sse2(u[2], u[3], k__cospi_p14_m18);
s[14] = idct_calc_wraplow_sse2(u[2], u[3], k__cospi_p18_p14);
s[10] = idct_calc_wraplow_sse2(u[4], u[5], k__cospi_p22_m10);
s[13] = idct_calc_wraplow_sse2(u[4], u[5], k__cospi_p10_p22);
s[11] = idct_calc_wraplow_sse2(u[6], u[7], k__cospi_p06_m26);
s[12] = idct_calc_wraplow_sse2(u[6], u[7], k__cospi_p26_p06);
// 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]);
t[4] = idct_calc_wraplow_sse2(u[0], u[1], k__cospi_p28_m04);
t[7] = idct_calc_wraplow_sse2(u[0], u[1], k__cospi_p04_p28);
t[5] = idct_calc_wraplow_sse2(u[2], u[3], k__cospi_p12_m20);
t[6] = idct_calc_wraplow_sse2(u[2], u[3], k__cospi_p20_p12);
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]);
s[0] = idct_calc_wraplow_sse2(u[0], u[1], k__cospi_p16_p16);
s[1] = idct_calc_wraplow_sse2(u[0], u[1], k__cospi_p16_m16);
s[2] = idct_calc_wraplow_sse2(u[2], u[3], k__cospi_p24_m08);
s[3] = idct_calc_wraplow_sse2(u[2], u[3], k__cospi_p08_p24);
s[9] = idct_calc_wraplow_sse2(u[4], u[5], k__cospi_m08_p24);
s[14] = idct_calc_wraplow_sse2(u[4], u[5], k__cospi_p24_p08);
s[10] = idct_calc_wraplow_sse2(u[6], u[7], k__cospi_m24_m08);
s[13] = idct_calc_wraplow_sse2(u[6], u[7], k__cospi_m08_p24);
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[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];
multiplication_and_add_2(&s[5], &s[6], &k__cospi_m16_p16, &k__cospi_p16_p16,
&t[5], &t[6]);
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]);
s[10] = idct_calc_wraplow_sse2(u[0], u[1], k__cospi_m16_p16);
s[13] = idct_calc_wraplow_sse2(u[0], u[1], k__cospi_p16_p16);
s[11] = idct_calc_wraplow_sse2(u[2], u[3], k__cospi_m16_p16);
s[12] = idct_calc_wraplow_sse2(u[2], u[3], k__cospi_p16_p16);
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 idct16_sse2(__m128i *in0, __m128i *in1) {
transpose_16bit_16x16(in0, in1);
idct16_8col(in0);
idct16_8col(in1);
}
void iadst16_sse2(__m128i *in0, __m128i *in1) {
transpose_16bit_16x16(in0, in1);
iadst16_8col(in0);
iadst16_8col(in1);
}
void vpx_idct16x16_10_add_sse2(const tran_low_t *input, uint8_t *dest,
int stride) {
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;
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_16bit_4x4(in, in);
// Stage2
{
const __m128i lo_1_15 = _mm_unpackhi_epi16(in[0], zero);
const __m128i lo_13_3 = _mm_unpackhi_epi16(zero, in[1]);
stp2_8 = idct_calc_wraplow_sse2(stg2_0, stg2_1, lo_1_15);
stp2_11 = idct_calc_wraplow_sse2(stg2_6, stg2_7, lo_13_3);
}
// Stage3
{
const __m128i lo_2_14 = _mm_unpacklo_epi16(in[1], zero);
stp1_4 = idct_calc_wraplow_sse2(stg3_0, stg3_1, lo_2_14);
stp1_13 = _mm_unpackhi_epi64(stp2_11, zero);
stp1_14 = _mm_unpackhi_epi64(stp2_8, zero);
}
// 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 = idct_madd_round_shift_sse2(lo_0_8, stg4_0);
tmp1 = idct_madd_round_shift_sse2(lo_0_8, stg4_1);
stp1_0 = _mm_packs_epi32(tmp0, tmp0);
stp1_1 = _mm_packs_epi32(tmp1, tmp1);
stp2_9 = idct_calc_wraplow_sse2(stg4_4, stg4_5, lo_9_14);
stp2_10 = idct_calc_wraplow_sse2(stg4_6, stg4_7, lo_10_13);
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);
stp1_6 = idct_calc_wraplow_sse2(stg4_0, stg4_1, lo_6_5);
tmp0 = idct_madd_round_shift_sse2(lo_10_13, stg6_0);
tmp1 = idct_madd_round_shift_sse2(lo_10_13, stg4_0);
tmp2 = idct_madd_round_shift_sse2(lo_11_12, stg6_0);
tmp3 = idct_madd_round_shift_sse2(lo_11_12, stg4_0);
stp2_10 = _mm_packs_epi32(tmp0, zero);
stp2_13 = _mm_packs_epi32(tmp1, zero);
stp2_11 = _mm_packs_epi32(tmp2, zero);
stp2_12 = _mm_packs_epi32(tmp3, 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;
transpose_16bit_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 */ \
multiplication_and_add_2(&in[1], &zero, &stg1_0, &stg1_1, &stp1_16, \
&stp1_31); \
multiplication_and_add_2(&zero, &in[7], &stg1_6, &stg1_7, &stp1_19, \
&stp1_28); \
multiplication_and_add_2(&in[5], &zero, &stg1_8, &stg1_9, &stp1_20, \
&stp1_27); \
multiplication_and_add_2(&zero, &in[3], &stg1_14, &stg1_15, &stp1_23, \
&stp1_24); \
\
/* Stage2 */ \
multiplication_and_add_2(&in[2], &zero, &stg2_0, &stg2_1, &stp2_8, \
&stp2_15); \
multiplication_and_add_2(&zero, &in[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 */ \
multiplication_and_add_2(&in[4], &zero, &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(&stp1_16, &stp1_31, &stp1_19, &stp1_28, &stg3_4, \
&stg3_5, &stg3_6, &stg3_4, &stp1_17, &stp1_30, \
&stp1_18, &stp1_29); \
\
multiplication_and_add(&stp1_20, &stp1_27, &stp1_23, &stp1_24, &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 */ \
multiplication_and_add_2(&in[0], &zero, &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(&stp2_8, &stp2_15, &stp2_11, &stp2_12, &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 */ \
stp1_0 = stp2_0; \
stp1_1 = stp2_1; \
stp1_2 = stp2_1; \
stp1_3 = stp2_0; \
multiplication_and_add_2(&stp2_6, &stp2_5, &stg4_1, &stg4_0, &stp1_5, \
&stp1_6); \
\
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(&stp2_18, &stp2_29, &stp2_19, &stp2_28, &stg4_4, \
&stg4_5, &stg4_4, &stg4_5, &stp1_18, &stp1_29, \
&stp1_19, &stp1_28); \
multiplication_and_add(&stp2_20, &stp2_27, &stp2_21, &stp2_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 */ \
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(&stp1_10, &stp1_13, &stp1_11, &stp1_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 */ \
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(&stp2_20, &stp2_27, &stp2_21, &stp2_26, &stg6_0, \
&stg4_0, &stg6_0, &stg4_0, &stp1_20, &stp1_27, \
&stp1_21, &stp1_26); \
multiplication_and_add(&stp2_22, &stp2_25, &stp2_23, &stp2_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 \
/* Stage1 */ \
multiplication_and_add(&in[1], &in[31], &in[17], &in[15], &stg1_0, &stg1_1, \
&stg1_2, &stg1_3, &stp1_16, &stp1_31, &stp1_17, \
&stp1_30); \
multiplication_and_add(&in[9], &in[23], &in[25], &in[7], &stg1_4, &stg1_5, \
&stg1_6, &stg1_7, &stp1_18, &stp1_29, &stp1_19, \
&stp1_28); \
multiplication_and_add(&in[5], &in[27], &in[21], &in[11], &stg1_8, &stg1_9, \
&stg1_10, &stg1_11, &stp1_20, &stp1_27, &stp1_21, \
&stp1_26); \
multiplication_and_add(&in[13], &in[19], &in[29], &in[3], &stg1_12, \
&stg1_13, &stg1_14, &stg1_15, &stp1_22, &stp1_25, \
&stp1_23, &stp1_24); \
\
/* Stage2 */ \
multiplication_and_add(&in[2], &in[30], &in[18], &in[14], &stg2_0, &stg2_1, \
&stg2_2, &stg2_3, &stp2_8, &stp2_15, &stp2_9, \
&stp2_14); \
multiplication_and_add(&in[10], &in[22], &in[26], &in[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 */ \
multiplication_and_add(&in[4], &in[28], &in[20], &in[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(&stp2_17, &stp2_30, &stp2_18, &stp2_29, &stg3_4, \
&stg3_5, &stg3_6, &stg3_4, &stp1_17, &stp1_30, \
&stp1_18, &stp1_29); \
multiplication_and_add(&stp2_21, &stp2_26, &stp2_22, &stp2_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 */ \
multiplication_and_add(&in[0], &in[16], &in[8], &in[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(&stp1_9, &stp1_14, &stp1_10, &stp1_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 */ \
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); \
multiplication_and_add_2(&stp2_6, &stp2_5, &stg4_1, &stg4_0, &stp1_5, \
&stp1_6); \
\
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(&stp2_18, &stp2_29, &stp2_19, &stp2_28, &stg4_4, \
&stg4_5, &stg4_4, &stg4_5, &stp1_18, &stp1_29, \
&stp1_19, &stp1_28); \
multiplication_and_add(&stp2_20, &stp2_27, &stp2_21, &stp2_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 */ \
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(&stp1_10, &stp1_13, &stp1_11, &stp1_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 */ \
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(&stp2_20, &stp2_27, &stp2_21, &stp2_26, &stg6_0, \
&stg4_0, &stg6_0, &stg4_0, &stp1_20, &stp1_27, \
&stp1_21, &stp1_26); \
multiplication_and_add(&stp2_22, &stp2_25, &stp2_23, &stp2_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 vpx_idct32x32_34_add_sse2(const tran_low_t *input, uint8_t *dest,
int stride) {
const __m128i zero = _mm_setzero_si128();
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;
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);
transpose_16bit_8x8(in, in);
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
transpose_16bit_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 vpx_idct32x32_1024_add_sse2(const tran_low_t *input, uint8_t *dest,
int stride) {
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;
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
transpose_16bit_8x8(in, in);
transpose_16bit_8x8(in + 8, in + 8);
transpose_16bit_8x8(in + 16, in + 16);
transpose_16bit_8x8(in + 24, in + 24);
IDCT32
// 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
transpose_16bit_8x8(col + j, in);
transpose_16bit_8x8(col + j + 32, in + 8);
transpose_16bit_8x8(col + j + 64, in + 16);
transpose_16bit_8x8(col + j + 96, in + 24);
IDCT32
// 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 vpx_idct32x32_1_add_sse2(const tran_low_t *input, uint8_t *dest,
int stride) {
__m128i dc_value;
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);
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);
}
}