86 lines
3.0 KiB
C
86 lines
3.0 KiB
C
/*
|
|
* Copyright (c) 2018 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 <arm_neon.h>
|
|
|
|
#include <assert.h>
|
|
#include "./vpx_dsp_rtcd.h"
|
|
|
|
uint64_t vpx_sum_squares_2d_i16_neon(const int16_t *src, int stride, int size) {
|
|
uint64x1_t s2;
|
|
|
|
if (size == 4) {
|
|
int16x4_t s[4];
|
|
int32x4_t s0;
|
|
uint32x2_t s1;
|
|
|
|
s[0] = vld1_s16(src + 0 * stride);
|
|
s[1] = vld1_s16(src + 1 * stride);
|
|
s[2] = vld1_s16(src + 2 * stride);
|
|
s[3] = vld1_s16(src + 3 * stride);
|
|
s0 = vmull_s16(s[0], s[0]);
|
|
s0 = vmlal_s16(s0, s[1], s[1]);
|
|
s0 = vmlal_s16(s0, s[2], s[2]);
|
|
s0 = vmlal_s16(s0, s[3], s[3]);
|
|
s1 = vpadd_u32(vget_low_u32(vreinterpretq_u32_s32(s0)),
|
|
vget_high_u32(vreinterpretq_u32_s32(s0)));
|
|
s2 = vpaddl_u32(s1);
|
|
} else {
|
|
int r = size;
|
|
uint64x2_t s1 = vdupq_n_u64(0);
|
|
|
|
do {
|
|
int c = size;
|
|
int32x4_t s0 = vdupq_n_s32(0);
|
|
const int16_t *src_t = src;
|
|
|
|
do {
|
|
int16x8_t s[8];
|
|
|
|
s[0] = vld1q_s16(src_t + 0 * stride);
|
|
s[1] = vld1q_s16(src_t + 1 * stride);
|
|
s[2] = vld1q_s16(src_t + 2 * stride);
|
|
s[3] = vld1q_s16(src_t + 3 * stride);
|
|
s[4] = vld1q_s16(src_t + 4 * stride);
|
|
s[5] = vld1q_s16(src_t + 5 * stride);
|
|
s[6] = vld1q_s16(src_t + 6 * stride);
|
|
s[7] = vld1q_s16(src_t + 7 * stride);
|
|
s0 = vmlal_s16(s0, vget_low_s16(s[0]), vget_low_s16(s[0]));
|
|
s0 = vmlal_s16(s0, vget_low_s16(s[1]), vget_low_s16(s[1]));
|
|
s0 = vmlal_s16(s0, vget_low_s16(s[2]), vget_low_s16(s[2]));
|
|
s0 = vmlal_s16(s0, vget_low_s16(s[3]), vget_low_s16(s[3]));
|
|
s0 = vmlal_s16(s0, vget_low_s16(s[4]), vget_low_s16(s[4]));
|
|
s0 = vmlal_s16(s0, vget_low_s16(s[5]), vget_low_s16(s[5]));
|
|
s0 = vmlal_s16(s0, vget_low_s16(s[6]), vget_low_s16(s[6]));
|
|
s0 = vmlal_s16(s0, vget_low_s16(s[7]), vget_low_s16(s[7]));
|
|
s0 = vmlal_s16(s0, vget_high_s16(s[0]), vget_high_s16(s[0]));
|
|
s0 = vmlal_s16(s0, vget_high_s16(s[1]), vget_high_s16(s[1]));
|
|
s0 = vmlal_s16(s0, vget_high_s16(s[2]), vget_high_s16(s[2]));
|
|
s0 = vmlal_s16(s0, vget_high_s16(s[3]), vget_high_s16(s[3]));
|
|
s0 = vmlal_s16(s0, vget_high_s16(s[4]), vget_high_s16(s[4]));
|
|
s0 = vmlal_s16(s0, vget_high_s16(s[5]), vget_high_s16(s[5]));
|
|
s0 = vmlal_s16(s0, vget_high_s16(s[6]), vget_high_s16(s[6]));
|
|
s0 = vmlal_s16(s0, vget_high_s16(s[7]), vget_high_s16(s[7]));
|
|
src_t += 8;
|
|
c -= 8;
|
|
} while (c);
|
|
|
|
s1 = vaddw_u32(s1, vget_low_u32(vreinterpretq_u32_s32(s0)));
|
|
s1 = vaddw_u32(s1, vget_high_u32(vreinterpretq_u32_s32(s0)));
|
|
src += 8 * stride;
|
|
r -= 8;
|
|
} while (r);
|
|
|
|
s2 = vadd_u64(vget_low_u64(s1), vget_high_u64(s1));
|
|
}
|
|
|
|
return vget_lane_u64(s2, 0);
|
|
}
|