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/*
* Copyright (c) 2017, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#include <immintrin.h>
#include "./aom_dsp_rtcd.h"
// -----------------------------------------------------------------------------
// D45E_PRED
/*
; ------------------------------------------
; input: x, y, z, result
;
; trick from pascal
; (x+2y+z+2)>>2 can be calculated as:
; result = avg(x,z)
; result -= xor(x,z) & 1
; result = avg(result,y)
; ------------------------------------------
*/
static INLINE __m256i avg3_epu16(const __m256i *x, const __m256i *y,
const __m256i *z) {
const __m256i one = _mm256_set1_epi16(1);
const __m256i a = _mm256_avg_epu16(*x, *z);
const __m256i b =
_mm256_subs_epu16(a, _mm256_and_si256(_mm256_xor_si256(*x, *z), one));
return _mm256_avg_epu16(b, *y);
}
static INLINE void d45e_w16(const __m256i *a0, const __m256i *a1,
const __m256i *a2, uint16_t **dst,
ptrdiff_t stride) {
const __m256i y = avg3_epu16(a0, a1, a2);
_mm256_storeu_si256((__m256i *)*dst, y);
*dst += stride;
}
void aom_highbd_d45e_predictor_16x8_avx2(uint16_t *dst, ptrdiff_t stride,
const uint16_t *above,
const uint16_t *left, int bd) {
(void)left;
(void)bd;
__m256i x0 = _mm256_loadu_si256((const __m256i *)above);
__m256i x1 = _mm256_loadu_si256((const __m256i *)(above + 1));
__m256i x2 = _mm256_loadu_si256((const __m256i *)(above + 2));
d45e_w16(&x0, &x1, &x2, &dst, stride);
int i = 3;
do {
x0 = _mm256_loadu_si256((const __m256i *)(above + i++));
d45e_w16(&x1, &x2, &x0, &dst, stride);
x1 = _mm256_loadu_si256((const __m256i *)(above + i++));
d45e_w16(&x2, &x0, &x1, &dst, stride);
x2 = _mm256_loadu_si256((const __m256i *)(above + i++));
d45e_w16(&x0, &x1, &x2, &dst, stride);
} while (i < 9);
x0 = _mm256_loadu_si256((const __m256i *)(above + 9));
x0 = _mm256_insert_epi16(x0, above[23], 15);
const __m256i y = avg3_epu16(&x1, &x2, &x0);
_mm256_storeu_si256((__m256i *)dst, y);
}
void aom_highbd_d45e_predictor_16x16_avx2(uint16_t *dst, ptrdiff_t stride,
const uint16_t *above,
const uint16_t *left, int bd) {
(void)left;
(void)bd;
__m256i x0 = _mm256_loadu_si256((const __m256i *)above);
__m256i x1 = _mm256_loadu_si256((const __m256i *)(above + 1));
__m256i x2 = _mm256_loadu_si256((const __m256i *)(above + 2));
d45e_w16(&x0, &x1, &x2, &dst, stride);
int i = 3;
do {
x0 = _mm256_loadu_si256((const __m256i *)(above + i++));
d45e_w16(&x1, &x2, &x0, &dst, stride);
x1 = _mm256_loadu_si256((const __m256i *)(above + i++));
d45e_w16(&x2, &x0, &x1, &dst, stride);
x2 = _mm256_loadu_si256((const __m256i *)(above + i++));
d45e_w16(&x0, &x1, &x2, &dst, stride);
} while (i < 15);
x0 = _mm256_loadu_si256((const __m256i *)(above + 15));
d45e_w16(&x1, &x2, &x0, &dst, stride);
x1 = _mm256_loadu_si256((const __m256i *)(above + 16));
d45e_w16(&x2, &x0, &x1, &dst, stride);
x2 = _mm256_loadu_si256((const __m256i *)(above + 17));
x2 = _mm256_insert_epi16(x2, above[31], 15);
const __m256i y = avg3_epu16(&x0, &x1, &x2);
_mm256_storeu_si256((__m256i *)dst, y);
}
void aom_highbd_d45e_predictor_16x32_avx2(uint16_t *dst, ptrdiff_t stride,
const uint16_t *above,
const uint16_t *left, int bd) {
(void)left;
(void)bd;
__m256i x0 = _mm256_loadu_si256((const __m256i *)above);
__m256i x1 = _mm256_loadu_si256((const __m256i *)(above + 1));
__m256i x2 = _mm256_loadu_si256((const __m256i *)(above + 2));
d45e_w16(&x0, &x1, &x2, &dst, stride);
int i = 3;
do {
x0 = _mm256_loadu_si256((const __m256i *)(above + i++));
d45e_w16(&x1, &x2, &x0, &dst, stride);
x1 = _mm256_loadu_si256((const __m256i *)(above + i++));
d45e_w16(&x2, &x0, &x1, &dst, stride);
x2 = _mm256_loadu_si256((const __m256i *)(above + i++));
d45e_w16(&x0, &x1, &x2, &dst, stride);
} while (i < 33);
x0 = _mm256_loadu_si256((const __m256i *)(above + 33));
x0 = _mm256_insert_epi16(x0, above[47], 15);
const __m256i y = avg3_epu16(&x1, &x2, &x0);
_mm256_storeu_si256((__m256i *)dst, y);
}
void aom_highbd_d45e_predictor_32x16_avx2(uint16_t *dst, ptrdiff_t stride,
const uint16_t *above,
const uint16_t *left, int bd) {
(void)left;
(void)bd;
__m256i x0 = _mm256_loadu_si256((const __m256i *)above);
__m256i x1 = _mm256_loadu_si256((const __m256i *)(above + 1));
__m256i x2 = _mm256_loadu_si256((const __m256i *)(above + 2));
__m256i y0 = _mm256_loadu_si256((const __m256i *)(above + 16));
__m256i y1 = _mm256_loadu_si256((const __m256i *)(above + 17));
__m256i y2 = _mm256_loadu_si256((const __m256i *)(above + 18));
uint16_t *dst1 = dst;
uint16_t *dst2 = dst + 16;
d45e_w16(&x0, &x1, &x2, &dst1, stride);
d45e_w16(&y0, &y1, &y2, &dst2, stride);
int i = 3;
do {
x0 = _mm256_loadu_si256((const __m256i *)(above + i));
d45e_w16(&x1, &x2, &x0, &dst1, stride);
y0 = _mm256_loadu_si256((const __m256i *)(above + 16 + i++));
d45e_w16(&y1, &y2, &y0, &dst2, stride);
x1 = _mm256_loadu_si256((const __m256i *)(above + i));
d45e_w16(&x2, &x0, &x1, &dst1, stride);
y1 = _mm256_loadu_si256((const __m256i *)(above + 16 + i++));
d45e_w16(&y2, &y0, &y1, &dst2, stride);
x2 = _mm256_loadu_si256((const __m256i *)(above + i));
d45e_w16(&x0, &x1, &x2, &dst1, stride);
y2 = _mm256_loadu_si256((const __m256i *)(above + 16 + i++));
d45e_w16(&y0, &y1, &y2, &dst2, stride);
} while (i < 15);
x0 = _mm256_loadu_si256((const __m256i *)(above + 15));
d45e_w16(&x1, &x2, &x0, &dst1, stride);
y0 = _mm256_loadu_si256((const __m256i *)(above + 16 + 15));
d45e_w16(&y1, &y2, &y0, &dst2, stride);
x1 = _mm256_loadu_si256((const __m256i *)(above + 16));
d45e_w16(&x2, &x0, &x1, &dst1, stride);
y1 = _mm256_loadu_si256((const __m256i *)(above + 16 + 16));
d45e_w16(&y2, &y0, &y1, &dst2, stride);
x2 = _mm256_loadu_si256((const __m256i *)(above + 17));
__m256i u = avg3_epu16(&x0, &x1, &x2);
_mm256_storeu_si256((__m256i *)dst1, u);
y2 = _mm256_loadu_si256((const __m256i *)(above + 16 + 17));
y2 = _mm256_insert_epi16(y2, above[47], 15);
u = avg3_epu16(&y0, &y1, &y2);
_mm256_storeu_si256((__m256i *)dst2, u);
}
void aom_highbd_d45e_predictor_32x32_avx2(uint16_t *dst, ptrdiff_t stride,
const uint16_t *above,
const uint16_t *left, int bd) {
(void)left;
(void)bd;
__m256i x0 = _mm256_loadu_si256((const __m256i *)above);
__m256i x1 = _mm256_loadu_si256((const __m256i *)(above + 1));
__m256i x2 = _mm256_loadu_si256((const __m256i *)(above + 2));
__m256i y0 = _mm256_loadu_si256((const __m256i *)(above + 16));
__m256i y1 = _mm256_loadu_si256((const __m256i *)(above + 17));
__m256i y2 = _mm256_loadu_si256((const __m256i *)(above + 18));
uint16_t *dst1 = dst;
uint16_t *dst2 = dst + 16;
d45e_w16(&x0, &x1, &x2, &dst1, stride);
d45e_w16(&y0, &y1, &y2, &dst2, stride);
int i = 3;
do {
x0 = _mm256_loadu_si256((const __m256i *)(above + i));
d45e_w16(&x1, &x2, &x0, &dst1, stride);
y0 = _mm256_loadu_si256((const __m256i *)(above + 16 + i++));
d45e_w16(&y1, &y2, &y0, &dst2, stride);
x1 = _mm256_loadu_si256((const __m256i *)(above + i));
d45e_w16(&x2, &x0, &x1, &dst1, stride);
y1 = _mm256_loadu_si256((const __m256i *)(above + 16 + i++));
d45e_w16(&y2, &y0, &y1, &dst2, stride);
x2 = _mm256_loadu_si256((const __m256i *)(above + i));
d45e_w16(&x0, &x1, &x2, &dst1, stride);
y2 = _mm256_loadu_si256((const __m256i *)(above + 16 + i++));
d45e_w16(&y0, &y1, &y2, &dst2, stride);
} while (i < 33);
x0 = _mm256_loadu_si256((const __m256i *)(above + 33));
__m256i u = avg3_epu16(&x1, &x2, &x0);
_mm256_storeu_si256((__m256i *)dst1, u);
y0 = _mm256_loadu_si256((const __m256i *)(above + 16 + 33));
y0 = _mm256_insert_epi16(y0, above[63], 15);
u = avg3_epu16(&y1, &y2, &y0);
_mm256_storeu_si256((__m256i *)dst2, u);
}
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