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/*
* Copyright (c) 2020, Alliance for Open Media. 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 <arm_neon.h>
#include "config/aom_dsp_rtcd.h"
#include "aom/aom_integer.h"
#include "aom_dsp/arm/sum_neon.h"
#include "av1/common/arm/mem_neon.h"
#include "av1/common/arm/transpose_neon.h"
static INLINE uint32_t highbd_sse_W8x1_neon(uint16x8_t q2, uint16x8_t q3) {
uint32_t sse;
const uint32_t sse1 = 0;
const uint32x4_t q1 = vld1q_dup_u32(&sse1);
uint16x8_t q4 = vabdq_u16(q2, q3); // diff = abs(a[x] - b[x])
uint16x4_t d0 = vget_low_u16(q4);
uint16x4_t d1 = vget_high_u16(q4);
uint32x4_t q6 = vmlal_u16(q1, d0, d0);
uint32x4_t q7 = vmlal_u16(q1, d1, d1);
uint32x2_t d4 = vadd_u32(vget_low_u32(q6), vget_high_u32(q6));
uint32x2_t d5 = vadd_u32(vget_low_u32(q7), vget_high_u32(q7));
uint32x2_t d6 = vadd_u32(d4, d5);
sse = vget_lane_u32(d6, 0);
sse += vget_lane_u32(d6, 1);
return sse;
}
int64_t aom_highbd_sse_neon(const uint8_t *a8, int a_stride, const uint8_t *b8,
int b_stride, int width, int height) {
const uint16x8_t q0 = { 0, 1, 2, 3, 4, 5, 6, 7 };
int64_t sse = 0;
uint16_t *a = CONVERT_TO_SHORTPTR(a8);
uint16_t *b = CONVERT_TO_SHORTPTR(b8);
int x, y;
int addinc;
uint16x4_t d0, d1, d2, d3;
uint16_t dx;
uint16x8_t q2, q3, q4, q5;
switch (width) {
case 4:
for (y = 0; y < height; y += 2) {
d0 = vld1_u16(a); // load 4 data
a += a_stride;
d1 = vld1_u16(a);
a += a_stride;
d2 = vld1_u16(b);
b += b_stride;
d3 = vld1_u16(b);
b += b_stride;
q2 = vcombine_u16(d0, d1); // make a 8 data vector
q3 = vcombine_u16(d2, d3);
sse += highbd_sse_W8x1_neon(q2, q3);
}
break;
case 8:
for (y = 0; y < height; y++) {
q2 = vld1q_u16(a);
q3 = vld1q_u16(b);
sse += highbd_sse_W8x1_neon(q2, q3);
a += a_stride;
b += b_stride;
}
break;
case 16:
for (y = 0; y < height; y++) {
q2 = vld1q_u16(a);
q3 = vld1q_u16(b);
sse += highbd_sse_W8x1_neon(q2, q3);
q2 = vld1q_u16(a + 8);
q3 = vld1q_u16(b + 8);
sse += highbd_sse_W8x1_neon(q2, q3);
a += a_stride;
b += b_stride;
}
break;
case 32:
for (y = 0; y < height; y++) {
q2 = vld1q_u16(a);
q3 = vld1q_u16(b);
sse += highbd_sse_W8x1_neon(q2, q3);
q2 = vld1q_u16(a + 8);
q3 = vld1q_u16(b + 8);
sse += highbd_sse_W8x1_neon(q2, q3);
q2 = vld1q_u16(a + 16);
q3 = vld1q_u16(b + 16);
sse += highbd_sse_W8x1_neon(q2, q3);
q2 = vld1q_u16(a + 24);
q3 = vld1q_u16(b + 24);
sse += highbd_sse_W8x1_neon(q2, q3);
a += a_stride;
b += b_stride;
}
break;
case 64:
for (y = 0; y < height; y++) {
q2 = vld1q_u16(a);
q3 = vld1q_u16(b);
sse += highbd_sse_W8x1_neon(q2, q3);
q2 = vld1q_u16(a + 8);
q3 = vld1q_u16(b + 8);
sse += highbd_sse_W8x1_neon(q2, q3);
q2 = vld1q_u16(a + 16);
q3 = vld1q_u16(b + 16);
sse += highbd_sse_W8x1_neon(q2, q3);
q2 = vld1q_u16(a + 24);
q3 = vld1q_u16(b + 24);
sse += highbd_sse_W8x1_neon(q2, q3);
q2 = vld1q_u16(a + 32);
q3 = vld1q_u16(b + 32);
sse += highbd_sse_W8x1_neon(q2, q3);
q2 = vld1q_u16(a + 40);
q3 = vld1q_u16(b + 40);
sse += highbd_sse_W8x1_neon(q2, q3);
q2 = vld1q_u16(a + 48);
q3 = vld1q_u16(b + 48);
sse += highbd_sse_W8x1_neon(q2, q3);
q2 = vld1q_u16(a + 56);
q3 = vld1q_u16(b + 56);
sse += highbd_sse_W8x1_neon(q2, q3);
a += a_stride;
b += b_stride;
}
break;
case 128:
for (y = 0; y < height; y++) {
q2 = vld1q_u16(a);
q3 = vld1q_u16(b);
sse += highbd_sse_W8x1_neon(q2, q3);
q2 = vld1q_u16(a + 8);
q3 = vld1q_u16(b + 8);
sse += highbd_sse_W8x1_neon(q2, q3);
q2 = vld1q_u16(a + 16);
q3 = vld1q_u16(b + 16);
sse += highbd_sse_W8x1_neon(q2, q3);
q2 = vld1q_u16(a + 24);
q3 = vld1q_u16(b + 24);
sse += highbd_sse_W8x1_neon(q2, q3);
q2 = vld1q_u16(a + 32);
q3 = vld1q_u16(b + 32);
sse += highbd_sse_W8x1_neon(q2, q3);
q2 = vld1q_u16(a + 40);
q3 = vld1q_u16(b + 40);
sse += highbd_sse_W8x1_neon(q2, q3);
q2 = vld1q_u16(a + 48);
q3 = vld1q_u16(b + 48);
sse += highbd_sse_W8x1_neon(q2, q3);
q2 = vld1q_u16(a + 56);
q3 = vld1q_u16(b + 56);
sse += highbd_sse_W8x1_neon(q2, q3);
q2 = vld1q_u16(a + 64);
q3 = vld1q_u16(b + 64);
sse += highbd_sse_W8x1_neon(q2, q3);
q2 = vld1q_u16(a + 72);
q3 = vld1q_u16(b + 72);
sse += highbd_sse_W8x1_neon(q2, q3);
q2 = vld1q_u16(a + 80);
q3 = vld1q_u16(b + 80);
sse += highbd_sse_W8x1_neon(q2, q3);
q2 = vld1q_u16(a + 88);
q3 = vld1q_u16(b + 88);
sse += highbd_sse_W8x1_neon(q2, q3);
q2 = vld1q_u16(a + 96);
q3 = vld1q_u16(b + 96);
sse += highbd_sse_W8x1_neon(q2, q3);
q2 = vld1q_u16(a + 104);
q3 = vld1q_u16(b + 104);
sse += highbd_sse_W8x1_neon(q2, q3);
q2 = vld1q_u16(a + 112);
q3 = vld1q_u16(b + 112);
sse += highbd_sse_W8x1_neon(q2, q3);
q2 = vld1q_u16(a + 120);
q3 = vld1q_u16(b + 120);
sse += highbd_sse_W8x1_neon(q2, q3);
a += a_stride;
b += b_stride;
}
break;
default:
for (y = 0; y < height; y++) {
x = width;
while (x > 0) {
addinc = width - x;
q2 = vld1q_u16(a + addinc);
q3 = vld1q_u16(b + addinc);
if (x < 8) {
dx = x;
q4 = vld1q_dup_u16(&dx);
q5 = vcltq_u16(q0, q4);
q2 = vandq_u16(q2, q5);
q3 = vandq_u16(q3, q5);
}
sse += highbd_sse_W8x1_neon(q2, q3);
x -= 8;
}
a += a_stride;
b += b_stride;
}
}
return (int64_t)sse;
}