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/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#include <smmintrin.h> /* SSE4.1 */
#include "config/aom_config.h"
#include "config/aom_dsp_rtcd.h"
#include "aom_dsp/variance.h"
#include "aom_dsp/aom_filter.h"
static INLINE void variance4x4_64_sse4_1(const uint8_t *a8, int a_stride,
const uint8_t *b8, int b_stride,
uint64_t *sse, int64_t *sum) {
__m128i u0, u1, u2, u3;
__m128i s0, s1, s2, s3;
__m128i t0, t1, x0, y0;
__m128i a0, a1, a2, a3;
__m128i b0, b1, b2, b3;
__m128i k_one_epi16 = _mm_set1_epi16((int16_t)1);
uint16_t *a = CONVERT_TO_SHORTPTR(a8);
uint16_t *b = CONVERT_TO_SHORTPTR(b8);
a0 = _mm_loadl_epi64((__m128i const *)(a + 0 * a_stride));
a1 = _mm_loadl_epi64((__m128i const *)(a + 1 * a_stride));
a2 = _mm_loadl_epi64((__m128i const *)(a + 2 * a_stride));
a3 = _mm_loadl_epi64((__m128i const *)(a + 3 * a_stride));
b0 = _mm_loadl_epi64((__m128i const *)(b + 0 * b_stride));
b1 = _mm_loadl_epi64((__m128i const *)(b + 1 * b_stride));
b2 = _mm_loadl_epi64((__m128i const *)(b + 2 * b_stride));
b3 = _mm_loadl_epi64((__m128i const *)(b + 3 * b_stride));
u0 = _mm_unpacklo_epi16(a0, a1);
u1 = _mm_unpacklo_epi16(a2, a3);
u2 = _mm_unpacklo_epi16(b0, b1);
u3 = _mm_unpacklo_epi16(b2, b3);
s0 = _mm_sub_epi16(u0, u2);
s1 = _mm_sub_epi16(u1, u3);
t0 = _mm_madd_epi16(s0, k_one_epi16);
t1 = _mm_madd_epi16(s1, k_one_epi16);
s2 = _mm_hadd_epi32(t0, t1);
s3 = _mm_hadd_epi32(s2, s2);
y0 = _mm_hadd_epi32(s3, s3);
t0 = _mm_madd_epi16(s0, s0);
t1 = _mm_madd_epi16(s1, s1);
s2 = _mm_hadd_epi32(t0, t1);
s3 = _mm_hadd_epi32(s2, s2);
x0 = _mm_hadd_epi32(s3, s3);
*sse = (uint64_t)_mm_extract_epi32(x0, 0);
*sum = (int64_t)_mm_extract_epi32(y0, 0);
}
uint32_t aom_highbd_8_variance4x4_sse4_1(const uint8_t *a, int a_stride,
const uint8_t *b, int b_stride,
uint32_t *sse) {
int64_t sum, diff;
uint64_t local_sse;
variance4x4_64_sse4_1(a, a_stride, b, b_stride, &local_sse, &sum);
*sse = (uint32_t)local_sse;
diff = (int64_t)*sse - ((sum * sum) >> 4);
return (diff >= 0) ? (uint32_t)diff : 0;
}
uint32_t aom_highbd_10_variance4x4_sse4_1(const uint8_t *a, int a_stride,
const uint8_t *b, int b_stride,
uint32_t *sse) {
int64_t sum, diff;
uint64_t local_sse;
variance4x4_64_sse4_1(a, a_stride, b, b_stride, &local_sse, &sum);
*sse = (uint32_t)ROUND_POWER_OF_TWO(local_sse, 4);
sum = ROUND_POWER_OF_TWO(sum, 2);
diff = (int64_t)*sse - ((sum * sum) >> 4);
return (diff >= 0) ? (uint32_t)diff : 0;
}
uint32_t aom_highbd_12_variance4x4_sse4_1(const uint8_t *a, int a_stride,
const uint8_t *b, int b_stride,
uint32_t *sse) {
int64_t sum, diff;
uint64_t local_sse;
variance4x4_64_sse4_1(a, a_stride, b, b_stride, &local_sse, &sum);
*sse = (uint32_t)ROUND_POWER_OF_TWO(local_sse, 8);
sum = ROUND_POWER_OF_TWO(sum, 4);
diff = (int64_t)*sse - ((sum * sum) >> 4);
return diff >= 0 ? (uint32_t)diff : 0;
}
// Sub-pixel
uint32_t aom_highbd_8_sub_pixel_variance4x4_sse4_1(
const uint8_t *src, int src_stride, int xoffset, int yoffset,
const uint8_t *dst, int dst_stride, uint32_t *sse) {
uint16_t fdata3[(4 + 1) * 4];
uint16_t temp2[4 * 4];
aom_highbd_var_filter_block2d_bil_first_pass(
src, fdata3, src_stride, 1, 4 + 1, 4, bilinear_filters_2t[xoffset]);
aom_highbd_var_filter_block2d_bil_second_pass(fdata3, temp2, 4, 4, 4, 4,
bilinear_filters_2t[yoffset]);
return aom_highbd_8_variance4x4(CONVERT_TO_BYTEPTR(temp2), 4, dst, dst_stride,
sse);
}
uint32_t aom_highbd_10_sub_pixel_variance4x4_sse4_1(
const uint8_t *src, int src_stride, int xoffset, int yoffset,
const uint8_t *dst, int dst_stride, uint32_t *sse) {
uint16_t fdata3[(4 + 1) * 4];
uint16_t temp2[4 * 4];
aom_highbd_var_filter_block2d_bil_first_pass(
src, fdata3, src_stride, 1, 4 + 1, 4, bilinear_filters_2t[xoffset]);
aom_highbd_var_filter_block2d_bil_second_pass(fdata3, temp2, 4, 4, 4, 4,
bilinear_filters_2t[yoffset]);
return aom_highbd_10_variance4x4(CONVERT_TO_BYTEPTR(temp2), 4, dst,
dst_stride, sse);
}
uint32_t aom_highbd_12_sub_pixel_variance4x4_sse4_1(
const uint8_t *src, int src_stride, int xoffset, int yoffset,
const uint8_t *dst, int dst_stride, uint32_t *sse) {
uint16_t fdata3[(4 + 1) * 4];
uint16_t temp2[4 * 4];
aom_highbd_var_filter_block2d_bil_first_pass(
src, fdata3, src_stride, 1, 4 + 1, 4, bilinear_filters_2t[xoffset]);
aom_highbd_var_filter_block2d_bil_second_pass(fdata3, temp2, 4, 4, 4, 4,
bilinear_filters_2t[yoffset]);
return aom_highbd_12_variance4x4(CONVERT_TO_BYTEPTR(temp2), 4, dst,
dst_stride, sse);
}
// Sub-pixel average
uint32_t aom_highbd_8_sub_pixel_avg_variance4x4_sse4_1(
const uint8_t *src, int src_stride, int xoffset, int yoffset,
const uint8_t *dst, int dst_stride, uint32_t *sse,
const uint8_t *second_pred) {
uint16_t fdata3[(4 + 1) * 4];
uint16_t temp2[4 * 4];
DECLARE_ALIGNED(16, uint16_t, temp3[4 * 4]);
aom_highbd_var_filter_block2d_bil_first_pass(
src, fdata3, src_stride, 1, 4 + 1, 4, bilinear_filters_2t[xoffset]);
aom_highbd_var_filter_block2d_bil_second_pass(fdata3, temp2, 4, 4, 4, 4,
bilinear_filters_2t[yoffset]);
aom_highbd_comp_avg_pred(CONVERT_TO_BYTEPTR(temp3), second_pred, 4, 4,
CONVERT_TO_BYTEPTR(temp2), 4);
return aom_highbd_8_variance4x4(CONVERT_TO_BYTEPTR(temp3), 4, dst, dst_stride,
sse);
}
uint32_t aom_highbd_10_sub_pixel_avg_variance4x4_sse4_1(
const uint8_t *src, int src_stride, int xoffset, int yoffset,
const uint8_t *dst, int dst_stride, uint32_t *sse,
const uint8_t *second_pred) {
uint16_t fdata3[(4 + 1) * 4];
uint16_t temp2[4 * 4];
DECLARE_ALIGNED(16, uint16_t, temp3[4 * 4]);
aom_highbd_var_filter_block2d_bil_first_pass(
src, fdata3, src_stride, 1, 4 + 1, 4, bilinear_filters_2t[xoffset]);
aom_highbd_var_filter_block2d_bil_second_pass(fdata3, temp2, 4, 4, 4, 4,
bilinear_filters_2t[yoffset]);
aom_highbd_comp_avg_pred(CONVERT_TO_BYTEPTR(temp3), second_pred, 4, 4,
CONVERT_TO_BYTEPTR(temp2), 4);
return aom_highbd_10_variance4x4(CONVERT_TO_BYTEPTR(temp3), 4, dst,
dst_stride, sse);
}
uint32_t aom_highbd_12_sub_pixel_avg_variance4x4_sse4_1(
const uint8_t *src, int src_stride, int xoffset, int yoffset,
const uint8_t *dst, int dst_stride, uint32_t *sse,
const uint8_t *second_pred) {
uint16_t fdata3[(4 + 1) * 4];
uint16_t temp2[4 * 4];
DECLARE_ALIGNED(16, uint16_t, temp3[4 * 4]);
aom_highbd_var_filter_block2d_bil_first_pass(
src, fdata3, src_stride, 1, 4 + 1, 4, bilinear_filters_2t[xoffset]);
aom_highbd_var_filter_block2d_bil_second_pass(fdata3, temp2, 4, 4, 4, 4,
bilinear_filters_2t[yoffset]);
aom_highbd_comp_avg_pred(CONVERT_TO_BYTEPTR(temp3), second_pred, 4, 4,
CONVERT_TO_BYTEPTR(temp2), 4);
return aom_highbd_12_variance4x4(CONVERT_TO_BYTEPTR(temp3), 4, dst,
dst_stride, sse);
}
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