1 /*
2 * Copyright (c) 2023 The WebM project authors. All Rights Reserved.
3 *
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
9 */
10
11 #include <arm_neon.h>
12 #include <assert.h>
13
14 #include "./vp9_rtcd.h"
15 #include "vpx_dsp/arm/mem_neon.h"
16 #include "vpx_dsp/arm/sum_neon.h"
17
vp9_highbd_block_error_neon(const tran_low_t * coeff,const tran_low_t * dqcoeff,intptr_t block_size,int64_t * ssz,int bd)18 int64_t vp9_highbd_block_error_neon(const tran_low_t *coeff,
19 const tran_low_t *dqcoeff,
20 intptr_t block_size, int64_t *ssz, int bd) {
21 uint64x2_t err_u64 = vdupq_n_u64(0);
22 int64x2_t ssz_s64 = vdupq_n_s64(0);
23
24 const int shift = 2 * (bd - 8);
25 const int rounding = shift > 0 ? 1 << (shift - 1) : 0;
26
27 assert(block_size >= 16);
28 assert((block_size % 16) == 0);
29
30 do {
31 const int32x4_t c = load_tran_low_to_s32q(coeff);
32 const int32x4_t d = load_tran_low_to_s32q(dqcoeff);
33
34 const uint32x4_t diff = vreinterpretq_u32_s32(vabdq_s32(c, d));
35
36 err_u64 = vmlal_u32(err_u64, vget_low_u32(diff), vget_low_u32(diff));
37 err_u64 = vmlal_u32(err_u64, vget_high_u32(diff), vget_high_u32(diff));
38
39 ssz_s64 = vmlal_s32(ssz_s64, vget_low_s32(c), vget_low_s32(c));
40 ssz_s64 = vmlal_s32(ssz_s64, vget_high_s32(c), vget_high_s32(c));
41
42 coeff += 4;
43 dqcoeff += 4;
44 block_size -= 4;
45 } while (block_size != 0);
46
47 *ssz = (horizontal_add_int64x2(ssz_s64) + rounding) >> shift;
48 return ((int64_t)horizontal_add_uint64x2(err_u64) + rounding) >> shift;
49 }
50