/*
* 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 <assert.h>
#include <emmintrin.h>
// SSE2
#include "config/aom_config.h"
#include "config/aom_dsp_rtcd.h"
#include "aom_dsp/blend.h"
#include "aom_dsp/x86/mem_sse2.h"
#include "aom_dsp/x86/synonyms.h"
#include "aom_ports/mem.h"
#if !CONFIG_REALTIME_ONLY
unsigned int aom_get_mb_ss_sse2(
const int16_t *src) {
__m128i vsum = _mm_setzero_si128();
int i;
for (i = 0; i < 32; ++i) {
const __m128i v = xx_loadu_128(src);
vsum = _mm_add_epi32(vsum, _mm_madd_epi16(v, v));
src += 8;
}
vsum = _mm_add_epi32(vsum, _mm_srli_si128(vsum, 8));
vsum = _mm_add_epi32(vsum, _mm_srli_si128(vsum, 4));
return (
unsigned int)_mm_cvtsi128_si32(vsum);
}
#endif // !CONFIG_REALTIME_ONLY
static inline __m128i load4x2_sse2(
const uint8_t *
const p,
const int stride) {
const __m128i p0 = _mm_cvtsi32_si128(loadu_int32(p + 0 * stride));
const __m128i p1 = _mm_cvtsi32_si128(loadu_int32(p + 1 * stride));
return _mm_unpacklo_epi8(_mm_unpacklo_epi32(p0, p1), _mm_setzero_si128());
}
static inline __m128i load8_8to16_sse2(
const uint8_t *
const p) {
const __m128i p0 = _mm_loadl_epi64((
const __m128i *)p);
return _mm_unpacklo_epi8(p0, _mm_setzero_si128());
}
static inline void load16_8to16_sse2(
const uint8_t *
const p, __m128i *out) {
const __m128i p0 = _mm_loadu_si128((
const __m128i *)p);
out[0] = _mm_unpacklo_epi8(p0, _mm_setzero_si128());
// lower 8 values
out[1] = _mm_unpackhi_epi8(p0, _mm_setzero_si128());
// upper 8 values
}
// Accumulate 4 32bit numbers in val to 1 32bit number
static inline unsigned int add32x4_sse2(__m128i val) {
val = _mm_add_epi32(val, _mm_srli_si128(val, 8));
val = _mm_add_epi32(val, _mm_srli_si128(val, 4));
return (
unsigned int)_mm_cvtsi128_si32(val);
}
// Accumulate 8 16bit in sum to 4 32bit number
static inline __m128i sum_to_32bit_sse2(
const __m128i sum) {
const __m128i sum_lo = _mm_srai_epi32(_mm_unpacklo_epi16(sum, sum), 16);
const __m128i sum_hi = _mm_srai_epi32(_mm_unpackhi_epi16(sum, sum), 16);
return _mm_add_epi32(sum_lo, sum_hi);
}
static inline void variance_kernel_sse2(
const __m128i src,
const __m128i ref,
__m128i *
const sse,
__m128i *
const sum) {
const __m128i diff = _mm_sub_epi16(src, ref);
*sse = _mm_add_epi32(*sse, _mm_madd_epi16(diff, diff));
*sum = _mm_add_epi16(*sum, diff);
}
// Can handle 128 pixels' diff sum (such as 8x16 or 16x8)
// Slightly faster than variance_final_256_pel_sse2()
// diff sum of 128 pixels can still fit in 16bit integer
static inline void variance_final_128_pel_sse2(__m128i vsse, __m128i vsum,
unsigned int *
const sse,
int *
const sum) {
*sse = add32x4_sse2(vsse);
vsum = _mm_add_epi16(vsum, _mm_srli_si128(vsum, 8));
vsum = _mm_add_epi16(vsum, _mm_srli_si128(vsum, 4));
vsum = _mm_add_epi16(vsum, _mm_srli_si128(vsum, 2));
*sum = (int16_t)_mm_extract_epi16(vsum, 0);
}
// Can handle 256 pixels' diff sum (such as 16x16)
static inline void variance_final_256_pel_sse2(__m128i vsse, __m128i vsum,
unsigned int *
const sse,
int *
const sum) {
*sse = add32x4_sse2(vsse);
vsum = _mm_add_epi16(vsum, _mm_srli_si128(vsum, 8));
vsum = _mm_add_epi16(vsum, _mm_srli_si128(vsum, 4));
*sum = (int16_t)_mm_extract_epi16(vsum, 0);
*sum += (int16_t)_mm_extract_epi16(vsum, 1);
}
// Can handle 512 pixels' diff sum (such as 16x32 or 32x16)
static inline void variance_final_512_pel_sse2(__m128i vsse, __m128i vsum,
unsigned int *
const sse,
int *
const sum) {
*sse = add32x4_sse2(vsse);
vsum = _mm_add_epi16(vsum, _mm_srli_si128(vsum, 8));
vsum = _mm_unpacklo_epi16(vsum, vsum);
vsum = _mm_srai_epi32(vsum, 16);
*sum = (
int)add32x4_sse2(vsum);
}
// Can handle 1024 pixels' diff sum (such as 32x32)
static inline void variance_final_1024_pel_sse2(__m128i vsse, __m128i vsum,
unsigned int *
const sse,
int *
const sum) {
*sse = add32x4_sse2(vsse);
vsum = sum_to_32bit_sse2(vsum);
*sum = (
int)add32x4_sse2(vsum);
}
static inline void variance4_sse2(
const uint8_t *src,
const int src_stride,
const uint8_t *ref,
const int ref_stride,
const int h, __m128i *
const sse,
__m128i *
const sum) {
assert(h <= 256);
// May overflow for larger height.
*sum = _mm_setzero_si128();
for (
int i = 0; i < h; i += 2) {
const __m128i s = load4x2_sse2(src, src_stride);
const __m128i r = load4x2_sse2(ref, ref_stride);
variance_kernel_sse2(s, r, sse, sum);
src += 2 * src_stride;
ref += 2 * ref_stride;
}
}
static inline void variance8_sse2(
const uint8_t *src,
const int src_stride,
const uint8_t *ref,
const int ref_stride,
const int h, __m128i *
const sse,
__m128i *
const sum) {
assert(h <= 128);
// May overflow for larger height.
*sum = _mm_setzero_si128();
*sse = _mm_setzero_si128();
for (
int i = 0; i < h; i++) {
const __m128i s = load8_8to16_sse2(src);
const __m128i r = load8_8to16_sse2(ref);
variance_kernel_sse2(s, r, sse, sum);
src += src_stride;
ref += ref_stride;
}
}
static inline void variance16_kernel_sse2(
const uint8_t *
const src,
const uint8_t *
const ref,
__m128i *
const sse,
__m128i *
const sum) {
const __m128i zero = _mm_setzero_si128();
const __m128i s = _mm_loadu_si128((
const __m128i *)src);
const __m128i r = _mm_loadu_si128((
const __m128i *)ref);
const __m128i src0 = _mm_unpacklo_epi8(s, zero);
const __m128i ref0 = _mm_unpacklo_epi8(r, zero);
const __m128i src1 = _mm_unpackhi_epi8(s, zero);
const __m128i ref1 = _mm_unpackhi_epi8(r, zero);
variance_kernel_sse2(src0, ref0, sse, sum);
variance_kernel_sse2(src1, ref1, sse, sum);
}
static inline void variance16_sse2(
const uint8_t *src,
const int src_stride,
const uint8_t *ref,
const int ref_stride,
const int h, __m128i *
const sse,
__m128i *
const sum) {
assert(h <= 64);
// May overflow for larger height.
*sum = _mm_setzero_si128();
for (
int i = 0; i < h; ++i) {
variance16_kernel_sse2(src, ref, sse, sum);
src += src_stride;
ref += ref_stride;
}
}
static inline void variance32_sse2(
const uint8_t *src,
const int src_stride,
const uint8_t *ref,
const int ref_stride,
const int h, __m128i *
const sse,
__m128i *
const sum) {
assert(h <= 32);
// May overflow for larger height.
// Don't initialize sse here since it's an accumulation.
*sum = _mm_setzero_si128();
for (
int i = 0; i < h; ++i) {
variance16_kernel_sse2(src + 0, ref + 0, sse, sum);
variance16_kernel_sse2(src + 16, ref + 16, sse, sum);
src += src_stride;
ref += ref_stride;
}
}
static inline void variance64_sse2(
const uint8_t *src,
const int src_stride,
const uint8_t *ref,
const int ref_stride,
const int h, __m128i *
const sse,
__m128i *
const sum) {
assert(h <= 16);
// May overflow for larger height.
*sum = _mm_setzero_si128();
for (
int i = 0; i < h; ++i) {
variance16_kernel_sse2(src + 0, ref + 0, sse, sum);
variance16_kernel_sse2(src + 16, ref + 16, sse, sum);
variance16_kernel_sse2(src + 32, ref + 32, sse, sum);
variance16_kernel_sse2(src + 48, ref + 48, sse, sum);
src += src_stride;
ref += ref_stride;
}
}
static inline void variance128_sse2(
const uint8_t *src,
const int src_stride,
const uint8_t *ref,
const int ref_stride,
const int h, __m128i *
const sse,
__m128i *
const sum) {
assert(h <= 8);
// May overflow for larger height.
*sum = _mm_setzero_si128();
for (
int i = 0; i < h; ++i) {
for (
int j = 0; j < 4; ++j) {
const int offset0 = j << 5;
const int offset1 = offset0 + 16;
variance16_kernel_sse2(src + offset0, ref + offset0, sse, sum);
variance16_kernel_sse2(src + offset1, ref + offset1, sse, sum);
}
src += src_stride;
ref += ref_stride;
}
}
void aom_get_var_sse_sum_8x8_quad_sse2(
const uint8_t *src_ptr,
int src_stride,
const uint8_t *ref_ptr,
int ref_stride,
uint32_t *sse8x8,
int *sum8x8,
unsigned int *tot_sse,
int *tot_sum,
uint32_t *var8x8) {
// Loop over 4 8x8 blocks. Process one 8x32 block.
for (
int k = 0; k < 4; k++) {
const uint8_t *src = src_ptr;
const uint8_t *ref = ref_ptr;
__m128i vsum = _mm_setzero_si128();
__m128i vsse = _mm_setzero_si128();
for (
int i = 0; i < 8; i++) {
const __m128i s = load8_8to16_sse2(src + (k * 8));
const __m128i r = load8_8to16_sse2(ref + (k * 8));
const __m128i diff = _mm_sub_epi16(s, r);
vsse = _mm_add_epi32(vsse, _mm_madd_epi16(diff, diff));
vsum = _mm_add_epi16(vsum, diff);
src += src_stride;
ref += ref_stride;
}
variance_final_128_pel_sse2(vsse, vsum, &sse8x8[k], &sum8x8[k]);
}
// Calculate variance at 8x8 level and total sse, sum of 8x32 block.
*tot_sse += sse8x8[0] + sse8x8[1] + sse8x8[2] + sse8x8[3];
*tot_sum += sum8x8[0] + sum8x8[1] + sum8x8[2] + sum8x8[3];
for (
int i = 0; i < 4; i++)
var8x8[i] = sse8x8[i] - (uint32_t)(((int64_t)sum8x8[i] * sum8x8[i]) >> 6);
}
void aom_get_var_sse_sum_16x16_dual_sse2(
const uint8_t *src_ptr,
int src_stride,
const uint8_t *ref_ptr,
int ref_stride,
uint32_t *sse16x16,
unsigned int *tot_sse,
int *tot_sum,
uint32_t *var16x16) {
int sum16x16[2] = { 0 };
// Loop over 2 16x16 blocks. Process one 16x32 block.
for (
int k = 0; k < 2; k++) {
const uint8_t *src = src_ptr;
const uint8_t *ref = ref_ptr;
__m128i vsum = _mm_setzero_si128();
__m128i vsse = _mm_setzero_si128();
for (
int i = 0; i < 16; i++) {
__m128i s[2];
__m128i r[2];
load16_8to16_sse2(src + (k * 16), s);
load16_8to16_sse2(ref + (k * 16), r);
const __m128i diff0 = _mm_sub_epi16(s[0], r[0]);
const __m128i diff1 = _mm_sub_epi16(s[1], r[1]);
vsse = _mm_add_epi32(vsse, _mm_madd_epi16(diff0, diff0));
vsse = _mm_add_epi32(vsse, _mm_madd_epi16(diff1, diff1));
vsum = _mm_add_epi16(vsum, _mm_add_epi16(diff0, diff1));
src += src_stride;
ref += ref_stride;
}
variance_final_256_pel_sse2(vsse, vsum, &sse16x16[k], &sum16x16[k]);
}
// Calculate variance at 16x16 level and total sse, sum of 16x32 block.
*tot_sse += sse16x16[0] + sse16x16[1];
*tot_sum += sum16x16[0] + sum16x16[1];
for (
int i = 0; i < 2; i++)
var16x16[i] =
sse16x16[i] - (uint32_t)(((int64_t)sum16x16[i] * sum16x16[i]) >> 8);
}
#define AOM_VAR_NO_LOOP_SSE2(bw, bh, bits, max_pixels) \
unsigned int aom_variance
##bw
##x
##bh
##_sse2( \
const uint8_t *src,
int src_stride,
const uint8_t *ref,
int ref_stride, \
unsigned int *sse) { \
__m128i vsse = _mm_setzero_si128(); \
__m128i vsum; \
int sum = 0; \
variance
##bw
##_sse2(src, src_stride, ref, ref_stride, bh, &vsse, &vsum); \
variance_final_
##max_pixels
##_pel_sse2(vsse, vsum, sse, &sum); \
assert(sum <= 255 * bw * bh); \
assert(sum >= -255 * bw * bh); \
return *sse - (uint32_t)(((int64_t)sum * sum) >> bits); \
}
AOM_VAR_NO_LOOP_SSE2(4, 4, 4, 128)
AOM_VAR_NO_LOOP_SSE2(4, 8, 5, 128)
AOM_VAR_NO_LOOP_SSE2(8, 4, 5, 128)
AOM_VAR_NO_LOOP_SSE2(8, 8, 6, 128)
AOM_VAR_NO_LOOP_SSE2(8, 16, 7, 128)
AOM_VAR_NO_LOOP_SSE2(16, 8, 7, 128)
AOM_VAR_NO_LOOP_SSE2(16, 16, 8, 256)
AOM_VAR_NO_LOOP_SSE2(16, 32, 9, 512)
AOM_VAR_NO_LOOP_SSE2(32, 16, 9, 512)
AOM_VAR_NO_LOOP_SSE2(32, 32, 10, 1024)
#if !CONFIG_REALTIME_ONLY
AOM_VAR_NO_LOOP_SSE2(4, 16, 6, 128)
AOM_VAR_NO_LOOP_SSE2(16, 4, 6, 128)
AOM_VAR_NO_LOOP_SSE2(8, 32, 8, 256)
AOM_VAR_NO_LOOP_SSE2(32, 8, 8, 256)
AOM_VAR_NO_LOOP_SSE2(16, 64, 10, 1024)
#endif
#define AOM_VAR_LOOP_SSE2(bw, bh, bits, uh) \
unsigned int aom_variance
##bw
##x
##bh
##_sse2( \
const uint8_t *src,
int src_stride,
const uint8_t *ref,
int ref_stride, \
unsigned int *sse) { \
__m128i vsse = _mm_setzero_si128(); \
__m128i vsum = _mm_setzero_si128(); \
for (
int i = 0; i < (bh / uh); ++i) { \
__m128i vsum16; \
variance
##bw
##_sse2(src, src_stride, ref, ref_stride, uh, &vsse, \
&vsum16); \
vsum = _mm_add_epi32(vsum, sum_to_32bit_sse2(vsum16)); \
src += (src_stride * uh); \
ref += (ref_stride * uh); \
} \
*sse = add32x4_sse2(vsse); \
int sum = (
int)add32x4_sse2(vsum); \
assert(sum <= 255 * bw * bh); \
assert(sum >= -255 * bw * bh); \
return *sse - (uint32_t)(((int64_t)sum * sum) >> bits); \
}
AOM_VAR_LOOP_SSE2(32, 64, 11, 32)
// 32x32 * ( 64/32 )
AOM_VAR_LOOP_SSE2(64, 32, 11, 16)
// 64x16 * ( 32/16 )
AOM_VAR_LOOP_SSE2(64, 64, 12, 16)
// 64x16 * ( 64/16 )
AOM_VAR_LOOP_SSE2(64, 128, 13, 16)
// 64x16 * ( 128/16 )
AOM_VAR_LOOP_SSE2(128, 64, 13, 8)
// 128x8 * ( 64/8 )
AOM_VAR_LOOP_SSE2(128, 128, 14, 8)
// 128x8 * ( 128/8 )
#if !CONFIG_REALTIME_ONLY
AOM_VAR_NO_LOOP_SSE2(64, 16, 10, 1024)
#endif
unsigned int aom_mse8x8_sse2(
const uint8_t *src,
int src_stride,
const uint8_t *ref,
int ref_stride,
unsigned int *sse) {
aom_variance8x8_sse2(src, src_stride, ref, ref_stride, sse);
return *sse;
}
unsigned int aom_mse8x16_sse2(
const uint8_t *src,
int src_stride,
const uint8_t *ref,
int ref_stride,
unsigned int *sse) {
aom_variance8x16_sse2(src, src_stride, ref, ref_stride, sse);
return *sse;
}
unsigned int aom_mse16x8_sse2(
const uint8_t *src,
int src_stride,
const uint8_t *ref,
int ref_stride,
unsigned int *sse) {
aom_variance16x8_sse2(src, src_stride, ref, ref_stride, sse);
return *sse;
}
unsigned int aom_mse16x16_sse2(
const uint8_t *src,
int src_stride,
const uint8_t *ref,
int ref_stride,
unsigned int *sse) {
aom_variance16x16_sse2(src, src_stride, ref, ref_stride, sse);
return *sse;
}
#if CONFIG_AV1_HIGHBITDEPTH
static inline __m128i highbd_comp_mask_pred_line_sse2(
const __m128i s0,
const __m128i s1,
const __m128i a) {
const __m128i alpha_max = _mm_set1_epi16((1 << AOM_BLEND_A64_ROUND_BITS));
const __m128i round_const =
_mm_set1_epi32((1 << AOM_BLEND_A64_ROUND_BITS) >> 1);
const __m128i a_inv = _mm_sub_epi16(alpha_max, a);
const __m128i s_lo = _mm_unpacklo_epi16(s0, s1);
const __m128i a_lo = _mm_unpacklo_epi16(a, a_inv);
const __m128i pred_lo = _mm_madd_epi16(s_lo, a_lo);
const __m128i pred_l = _mm_srai_epi32(_mm_add_epi32(pred_lo, round_const),
AOM_BLEND_A64_ROUND_BITS);
const __m128i s_hi = _mm_unpackhi_epi16(s0, s1);
const __m128i a_hi = _mm_unpackhi_epi16(a, a_inv);
const __m128i pred_hi = _mm_madd_epi16(s_hi, a_hi);
const __m128i pred_h = _mm_srai_epi32(_mm_add_epi32(pred_hi, round_const),
AOM_BLEND_A64_ROUND_BITS);
const __m128i comp = _mm_packs_epi32(pred_l, pred_h);
return comp;
}
void aom_highbd_comp_mask_pred_sse2(uint8_t *comp_pred8,
const uint8_t *pred8,
int width,
int height,
const uint8_t *ref8,
int ref_stride,
const uint8_t *mask,
int mask_stride,
int invert_mask) {
int i = 0;
uint16_t *comp_pred = CONVERT_TO_SHORTPTR(comp_pred8);
uint16_t *pred = CONVERT_TO_SHORTPTR(pred8);
uint16_t *ref = CONVERT_TO_SHORTPTR(ref8);
const uint16_t *src0 = invert_mask ? pred : ref;
const uint16_t *src1 = invert_mask ? ref : pred;
const int stride0 = invert_mask ? width : ref_stride;
const int stride1 = invert_mask ? ref_stride : width;
const __m128i zero = _mm_setzero_si128();
if (width == 8) {
do {
const __m128i s0 = _mm_loadu_si128((
const __m128i *)(src0));
const __m128i s1 = _mm_loadu_si128((
const __m128i *)(src1));
const __m128i m_8 = _mm_loadl_epi64((
const __m128i *)mask);
const __m128i m_16 = _mm_unpacklo_epi8(m_8, zero);
const __m128i comp = highbd_comp_mask_pred_line_sse2(s0, s1, m_16);
_mm_storeu_si128((__m128i *)comp_pred, comp);
src0 += stride0;
src1 += stride1;
mask += mask_stride;
comp_pred += width;
i += 1;
}
while (i < height);
}
else if (width == 16) {
do {
const __m128i s0 = _mm_loadu_si128((
const __m128i *)(src0));
const __m128i s2 = _mm_loadu_si128((
const __m128i *)(src0 + 8));
const __m128i s1 = _mm_loadu_si128((
const __m128i *)(src1));
const __m128i s3 = _mm_loadu_si128((
const __m128i *)(src1 + 8));
const __m128i m_8 = _mm_loadu_si128((
const __m128i *)mask);
const __m128i m01_16 = _mm_unpacklo_epi8(m_8, zero);
const __m128i m23_16 = _mm_unpackhi_epi8(m_8, zero);
const __m128i comp = highbd_comp_mask_pred_line_sse2(s0, s1, m01_16);
const __m128i comp1 = highbd_comp_mask_pred_line_sse2(s2, s3, m23_16);
_mm_storeu_si128((__m128i *)comp_pred, comp);
_mm_storeu_si128((__m128i *)(comp_pred + 8), comp1);
src0 += stride0;
src1 += stride1;
mask += mask_stride;
comp_pred += width;
i += 1;
}
while (i < height);
}
else {
do {
for (
int x = 0; x < width; x += 32) {
for (
int j = 0; j < 2; j++) {
const __m128i s0 =
_mm_loadu_si128((
const __m128i *)(src0 + x + j * 16));
const __m128i s2 =
_mm_loadu_si128((
const __m128i *)(src0 + x + 8 + j * 16));
const __m128i s1 =
_mm_loadu_si128((
const __m128i *)(src1 + x + j * 16));
const __m128i s3 =
_mm_loadu_si128((
const __m128i *)(src1 + x + 8 + j * 16));
const __m128i m_8 =
_mm_loadu_si128((
const __m128i *)(mask + x + j * 16));
const __m128i m01_16 = _mm_unpacklo_epi8(m_8, zero);
const __m128i m23_16 = _mm_unpackhi_epi8(m_8, zero);
const __m128i comp = highbd_comp_mask_pred_line_sse2(s0, s1, m01_16);
const __m128i comp1 = highbd_comp_mask_pred_line_sse2(s2, s3, m23_16);
_mm_storeu_si128((__m128i *)(comp_pred + j * 16), comp);
_mm_storeu_si128((__m128i *)(comp_pred + 8 + j * 16), comp1);
}
comp_pred += 32;
}
src0 += stride0;
src1 += stride1;
mask += mask_stride;
i += 1;
}
while (i < height);
}
}
#endif // CONFIG_AV1_HIGHBITDEPTH
static uint64_t mse_4xh_16bit_sse2(uint8_t *dst,
int dstride, uint16_t *src,
int sstride,
int h) {
uint64_t sum = 0;
__m128i dst0_8x8, dst1_8x8, dst_16x8;
__m128i src0_16x4, src1_16x4, src_16x8;
__m128i res0_32x4, res0_64x2, res1_64x2;
__m128i sub_result_16x8;
const __m128i zeros = _mm_setzero_si128();
__m128i square_result = _mm_setzero_si128();
for (
int i = 0; i < h; i += 2) {
dst0_8x8 = _mm_cvtsi32_si128(*(
int const *)(&dst[(i + 0) * dstride]));
dst1_8x8 = _mm_cvtsi32_si128(*(
int const *)(&dst[(i + 1) * dstride]));
dst_16x8 = _mm_unpacklo_epi8(_mm_unpacklo_epi32(dst0_8x8, dst1_8x8), zeros);
src0_16x4 = _mm_loadl_epi64((__m128i
const *)(&src[(i + 0) * sstride]));
src1_16x4 = _mm_loadl_epi64((__m128i
const *)(&src[(i + 1) * sstride]));
src_16x8 = _mm_unpacklo_epi64(src0_16x4, src1_16x4);
sub_result_16x8 = _mm_sub_epi16(src_16x8, dst_16x8);
res0_32x4 = _mm_madd_epi16(sub_result_16x8, sub_result_16x8);
res0_64x2 = _mm_unpacklo_epi32(res0_32x4, zeros);
res1_64x2 = _mm_unpackhi_epi32(res0_32x4, zeros);
square_result =
_mm_add_epi64(square_result, _mm_add_epi64(res0_64x2, res1_64x2));
}
const __m128i sum_64x1 =
_mm_add_epi64(square_result, _mm_srli_si128(square_result, 8));
xx_storel_64(&sum, sum_64x1);
return sum;
}
static uint64_t mse_8xh_16bit_sse2(uint8_t *dst,
int dstride, uint16_t *src,
int sstride,
int h) {
uint64_t sum = 0;
__m128i dst_8x8, dst_16x8;
__m128i src_16x8;
__m128i res0_32x4, res0_64x2, res1_64x2;
__m128i sub_result_16x8;
const __m128i zeros = _mm_setzero_si128();
__m128i square_result = _mm_setzero_si128();
for (
int i = 0; i < h; i++) {
dst_8x8 = _mm_loadl_epi64((__m128i
const *)(&dst[(i + 0) * dstride]));
dst_16x8 = _mm_unpacklo_epi8(dst_8x8, zeros);
src_16x8 = _mm_loadu_si128((__m128i *)&src[i * sstride]);
sub_result_16x8 = _mm_sub_epi16(src_16x8, dst_16x8);
res0_32x4 = _mm_madd_epi16(sub_result_16x8, sub_result_16x8);
res0_64x2 = _mm_unpacklo_epi32(res0_32x4, zeros);
res1_64x2 = _mm_unpackhi_epi32(res0_32x4, zeros);
square_result =
_mm_add_epi64(square_result, _mm_add_epi64(res0_64x2, res1_64x2));
}
const __m128i sum_64x1 =
_mm_add_epi64(square_result, _mm_srli_si128(square_result, 8));
xx_storel_64(&sum, sum_64x1);
return sum;
}
uint64_t aom_mse_wxh_16bit_sse2(uint8_t *dst,
int dstride, uint16_t *src,
int sstride,
int w,
int h) {
assert((w == 8 || w == 4) && (h == 8 || h == 4) &&
"w=8/4 and h=8/4 must satisfy");
switch (w) {
case 4:
return mse_4xh_16bit_sse2(dst, dstride, src, sstride, h);
case 8:
return mse_8xh_16bit_sse2(dst, dstride, src, sstride, h);
default: assert(0 &&
"unsupported width");
return -1;
}
}
uint64_t aom_mse_16xh_16bit_sse2(uint8_t *dst,
int dstride, uint16_t *src,
int w,
int h) {
assert((w == 8 || w == 4) && (h == 8 || h == 4) &&
"w=8/4 and h=8/4 must be satisfied");
const int num_blks = 16 / w;
uint64_t sum = 0;
for (
int i = 0; i < num_blks; i++) {
sum += aom_mse_wxh_16bit_sse2(dst, dstride, src, w, w, h);
dst += w;
src += (w * h);
}
return sum;
}
