ref: 264a7ecfd8ed4938378928deb4233c187562dbe5
dir: /vpx_dsp/x86/highbd_idct16x16_add_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 <emmintrin.h> // SSE2
#include "./vpx_dsp_rtcd.h"
#include "vpx_dsp/x86/highbd_inv_txfm_sse2.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 highbd_idct16_4col_stage5(const __m128i *const in,
__m128i *const out) {
// stage 5
out[0] = _mm_add_epi32(in[0], in[3]);
out[1] = _mm_add_epi32(in[1], in[2]);
out[2] = _mm_sub_epi32(in[1], in[2]);
out[3] = _mm_sub_epi32(in[0], in[3]);
highbd_butterfly_cospi16_sse2(in[6], in[5], &out[6], &out[5]);
out[8] = _mm_add_epi32(in[8], in[11]);
out[9] = _mm_add_epi32(in[9], in[10]);
out[10] = _mm_sub_epi32(in[9], in[10]);
out[11] = _mm_sub_epi32(in[8], in[11]);
out[12] = _mm_sub_epi32(in[15], in[12]);
out[13] = _mm_sub_epi32(in[14], in[13]);
out[14] = _mm_add_epi32(in[14], in[13]);
out[15] = _mm_add_epi32(in[15], in[12]);
}
static INLINE void highbd_idct16_4col_stage6(const __m128i *const in,
__m128i *const out) {
out[0] = _mm_add_epi32(in[0], in[7]);
out[1] = _mm_add_epi32(in[1], in[6]);
out[2] = _mm_add_epi32(in[2], in[5]);
out[3] = _mm_add_epi32(in[3], in[4]);
out[4] = _mm_sub_epi32(in[3], in[4]);
out[5] = _mm_sub_epi32(in[2], in[5]);
out[6] = _mm_sub_epi32(in[1], in[6]);
out[7] = _mm_sub_epi32(in[0], in[7]);
out[8] = in[8];
out[9] = in[9];
highbd_butterfly_cospi16_sse2(in[13], in[10], &out[13], &out[10]);
highbd_butterfly_cospi16_sse2(in[12], in[11], &out[12], &out[11]);
out[14] = in[14];
out[15] = in[15];
}
static INLINE void highbd_idct16_4col(__m128i *const io /*io[16]*/) {
__m128i step1[16], step2[16];
// stage 2
highbd_butterfly_sse2(io[1], io[15], cospi_30_64, cospi_2_64, &step2[8],
&step2[15]);
highbd_butterfly_sse2(io[9], io[7], cospi_14_64, cospi_18_64, &step2[9],
&step2[14]);
highbd_butterfly_sse2(io[5], io[11], cospi_22_64, cospi_10_64, &step2[10],
&step2[13]);
highbd_butterfly_sse2(io[13], io[3], cospi_6_64, cospi_26_64, &step2[11],
&step2[12]);
// stage 3
highbd_butterfly_sse2(io[2], io[14], cospi_28_64, cospi_4_64, &step1[4],
&step1[7]);
highbd_butterfly_sse2(io[10], io[6], cospi_12_64, cospi_20_64, &step1[5],
&step1[6]);
step1[8] = _mm_add_epi32(step2[8], step2[9]);
step1[9] = _mm_sub_epi32(step2[8], step2[9]);
step1[10] = _mm_sub_epi32(step2[10], step2[11]); // step1[10] = -step1[10]
step1[11] = _mm_add_epi32(step2[10], step2[11]);
step1[12] = _mm_add_epi32(step2[13], step2[12]);
step1[13] = _mm_sub_epi32(step2[13], step2[12]); // step1[13] = -step1[13]
step1[14] = _mm_sub_epi32(step2[15], step2[14]);
step1[15] = _mm_add_epi32(step2[15], step2[14]);
// stage 4
highbd_butterfly_cospi16_sse2(io[0], io[8], &step2[0], &step2[1]);
highbd_butterfly_sse2(io[4], io[12], cospi_24_64, cospi_8_64, &step2[2],
&step2[3]);
highbd_butterfly_sse2(step1[14], step1[9], cospi_24_64, cospi_8_64, &step2[9],
&step2[14]);
highbd_butterfly_sse2(step1[10], step1[13], cospi_8_64, cospi_24_64,
&step2[13], &step2[10]);
step2[5] = _mm_sub_epi32(step1[4], step1[5]);
step1[4] = _mm_add_epi32(step1[4], step1[5]);
step2[6] = _mm_sub_epi32(step1[7], step1[6]);
step1[7] = _mm_add_epi32(step1[7], step1[6]);
step2[8] = step1[8];
step2[11] = step1[11];
step2[12] = step1[12];
step2[15] = step1[15];
highbd_idct16_4col_stage5(step2, step1);
highbd_idct16_4col_stage6(step1, step2);
highbd_idct16_4col_stage7(step2, io);
}
static INLINE void highbd_idct16x16_38_4col(__m128i *const io /*io[16]*/) {
__m128i step1[16], step2[16];
__m128i temp1[2], sign[2];
// stage 2
highbd_partial_butterfly_sse2(io[1], cospi_30_64, cospi_2_64, &step2[8],
&step2[15]);
highbd_partial_butterfly_neg_sse2(io[7], cospi_14_64, cospi_18_64, &step2[9],
&step2[14]);
highbd_partial_butterfly_sse2(io[5], cospi_22_64, cospi_10_64, &step2[10],
&step2[13]);
highbd_partial_butterfly_neg_sse2(io[3], cospi_6_64, cospi_26_64, &step2[11],
&step2[12]);
// stage 3
highbd_partial_butterfly_sse2(io[2], cospi_28_64, cospi_4_64, &step1[4],
&step1[7]);
highbd_partial_butterfly_neg_sse2(io[6], cospi_12_64, cospi_20_64, &step1[5],
&step1[6]);
step1[8] = _mm_add_epi32(step2[8], step2[9]);
step1[9] = _mm_sub_epi32(step2[8], step2[9]);
step1[10] = _mm_sub_epi32(step2[10], step2[11]); // step1[10] = -step1[10]
step1[11] = _mm_add_epi32(step2[10], step2[11]);
step1[12] = _mm_add_epi32(step2[13], step2[12]);
step1[13] = _mm_sub_epi32(step2[13], step2[12]); // step1[13] = -step1[13]
step1[14] = _mm_sub_epi32(step2[15], step2[14]);
step1[15] = _mm_add_epi32(step2[15], step2[14]);
// stage 4
abs_extend_64bit_sse2(io[0], temp1, sign);
step2[0] = multiplication_round_shift_sse2(temp1, sign, cospi_16_64);
step2[1] = step2[0];
highbd_partial_butterfly_sse2(io[4], cospi_24_64, cospi_8_64, &step2[2],
&step2[3]);
highbd_butterfly_sse2(step1[14], step1[9], cospi_24_64, cospi_8_64, &step2[9],
&step2[14]);
highbd_butterfly_sse2(step1[10], step1[13], cospi_8_64, cospi_24_64,
&step2[13], &step2[10]);
step2[5] = _mm_sub_epi32(step1[4], step1[5]);
step1[4] = _mm_add_epi32(step1[4], step1[5]);
step2[6] = _mm_sub_epi32(step1[7], step1[6]);
step1[7] = _mm_add_epi32(step1[7], step1[6]);
step2[8] = step1[8];
step2[11] = step1[11];
step2[12] = step1[12];
step2[15] = step1[15];
highbd_idct16_4col_stage5(step2, step1);
highbd_idct16_4col_stage6(step1, step2);
highbd_idct16_4col_stage7(step2, io);
}
static INLINE void highbd_idct16x16_10_4col(__m128i *const io /*io[16]*/) {
__m128i step1[16], step2[16];
__m128i temp[2], sign[2];
// stage 2
highbd_partial_butterfly_sse2(io[1], cospi_30_64, cospi_2_64, &step2[8],
&step2[15]);
highbd_partial_butterfly_neg_sse2(io[3], cospi_6_64, cospi_26_64, &step2[11],
&step2[12]);
// stage 3
highbd_partial_butterfly_sse2(io[2], cospi_28_64, cospi_4_64, &step1[4],
&step1[7]);
step1[8] = step2[8];
step1[9] = step2[8];
step1[10] =
_mm_sub_epi32(_mm_setzero_si128(), step2[11]); // step1[10] = -step1[10]
step1[11] = step2[11];
step1[12] = step2[12];
step1[13] =
_mm_sub_epi32(_mm_setzero_si128(), step2[12]); // step1[13] = -step1[13]
step1[14] = step2[15];
step1[15] = step2[15];
// stage 4
abs_extend_64bit_sse2(io[0], temp, sign);
step2[0] = multiplication_round_shift_sse2(temp, sign, cospi_16_64);
step2[1] = step2[0];
step2[2] = _mm_setzero_si128();
step2[3] = _mm_setzero_si128();
highbd_butterfly_sse2(step1[14], step1[9], cospi_24_64, cospi_8_64, &step2[9],
&step2[14]);
highbd_butterfly_sse2(step1[10], step1[13], cospi_8_64, cospi_24_64,
&step2[13], &step2[10]);
step2[5] = step1[4];
step2[6] = step1[7];
step2[8] = step1[8];
step2[11] = step1[11];
step2[12] = step1[12];
step2[15] = step1[15];
highbd_idct16_4col_stage5(step2, step1);
highbd_idct16_4col_stage6(step1, step2);
highbd_idct16_4col_stage7(step2, io);
}
void vpx_highbd_idct16x16_256_add_sse2(const tran_low_t *input, uint16_t *dest,
int stride, int bd) {
int i;
__m128i out[16], *in;
if (bd == 8) {
__m128i l[16], r[16];
in = l;
for (i = 0; i < 2; i++) {
highbd_load_pack_transpose_32bit_8x8(&input[0], 16, &in[0]);
highbd_load_pack_transpose_32bit_8x8(&input[8], 16, &in[8]);
idct16_8col(in, in);
in = r;
input += 128;
}
for (i = 0; i < 16; i += 8) {
int j;
transpose_16bit_8x8(l + i, out);
transpose_16bit_8x8(r + i, out + 8);
idct16_8col(out, out);
for (j = 0; j < 16; ++j) {
highbd_write_buffer_8(dest + j * stride, out[j], bd);
}
dest += 8;
}
} else {
__m128i all[4][16];
for (i = 0; i < 4; i++) {
in = all[i];
highbd_load_transpose_32bit_8x4(&input[0], 16, &in[0]);
highbd_load_transpose_32bit_8x4(&input[8], 16, &in[8]);
highbd_idct16_4col(in);
input += 4 * 16;
}
for (i = 0; i < 16; i += 4) {
int j;
transpose_32bit_4x4(all[0] + i, out + 0);
transpose_32bit_4x4(all[1] + i, out + 4);
transpose_32bit_4x4(all[2] + i, out + 8);
transpose_32bit_4x4(all[3] + i, out + 12);
highbd_idct16_4col(out);
for (j = 0; j < 16; ++j) {
highbd_write_buffer_4(dest + j * stride, out[j], bd);
}
dest += 4;
}
}
}
void vpx_highbd_idct16x16_38_add_sse2(const tran_low_t *input, uint16_t *dest,
int stride, int bd) {
int i;
__m128i out[16];
if (bd == 8) {
__m128i in[16], temp[16];
highbd_load_pack_transpose_32bit_8x8(input, 16, in);
for (i = 8; i < 16; i++) {
in[i] = _mm_setzero_si128();
}
idct16_8col(in, temp);
for (i = 0; i < 16; i += 8) {
int j;
transpose_16bit_8x8(temp + i, in);
idct16_8col(in, out);
for (j = 0; j < 16; ++j) {
highbd_write_buffer_8(dest + j * stride, out[j], bd);
}
dest += 8;
}
} else {
__m128i all[2][16], *in;
for (i = 0; i < 2; i++) {
in = all[i];
highbd_load_transpose_32bit_8x4(input, 16, in);
highbd_idct16x16_38_4col(in);
input += 4 * 16;
}
for (i = 0; i < 16; i += 4) {
int j;
transpose_32bit_4x4(all[0] + i, out + 0);
transpose_32bit_4x4(all[1] + i, out + 4);
highbd_idct16x16_38_4col(out);
for (j = 0; j < 16; ++j) {
highbd_write_buffer_4(dest + j * stride, out[j], bd);
}
dest += 4;
}
}
}
void vpx_highbd_idct16x16_10_add_sse2(const tran_low_t *input, uint16_t *dest,
int stride, int bd) {
int i;
__m128i out[16];
if (bd == 8) {
__m128i in[16], l[16];
in[0] = load_pack_8_32bit(input + 0 * 16);
in[1] = load_pack_8_32bit(input + 1 * 16);
in[2] = load_pack_8_32bit(input + 2 * 16);
in[3] = load_pack_8_32bit(input + 3 * 16);
idct16x16_10_pass1(in, l);
for (i = 0; i < 16; i += 8) {
int j;
idct16x16_10_pass2(l + i, in);
for (j = 0; j < 16; ++j) {
highbd_write_buffer_8(dest + j * stride, in[j], bd);
}
dest += 8;
}
} else {
__m128i all[2][16], *in;
for (i = 0; i < 2; i++) {
in = all[i];
highbd_load_transpose_32bit_4x4(input, 16, in);
highbd_idct16x16_10_4col(in);
input += 4 * 16;
}
for (i = 0; i < 16; i += 4) {
int j;
transpose_32bit_4x4(&all[0][i], out);
highbd_idct16x16_10_4col(out);
for (j = 0; j < 16; ++j) {
highbd_write_buffer_4(dest + j * stride, out[j], bd);
}
dest += 4;
}
}
}
void vpx_highbd_idct16x16_1_add_sse2(const tran_low_t *input, uint16_t *dest,
int stride, int bd) {
highbd_idct_1_add_kernel(input, dest, stride, bd, 16);
}