1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
/*
* Copyright (c) 2018, 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 <emmintrin.h>
#include "aom/aom_integer.h"
static INLINE void load_b_values(const int16_t *zbin_ptr, __m128i *zbin,
const int16_t *round_ptr, __m128i *round,
const int16_t *quant_ptr, __m128i *quant,
const int16_t *dequant_ptr, __m128i *dequant,
const int16_t *shift_ptr, __m128i *shift) {
*zbin = _mm_load_si128((const __m128i *)zbin_ptr);
*round = _mm_load_si128((const __m128i *)round_ptr);
*quant = _mm_load_si128((const __m128i *)quant_ptr);
*zbin = _mm_sub_epi16(*zbin, _mm_set1_epi16(1));
*dequant = _mm_load_si128((const __m128i *)dequant_ptr);
*shift = _mm_load_si128((const __m128i *)shift_ptr);
}
// With ssse3 and later abs() and sign() are preferred.
static INLINE __m128i invert_sign_sse2(__m128i a, __m128i sign) {
a = _mm_xor_si128(a, sign);
return _mm_sub_epi16(a, sign);
}
static INLINE void calculate_qcoeff(__m128i *coeff, const __m128i round,
const __m128i quant, const __m128i shift) {
__m128i tmp, qcoeff;
qcoeff = _mm_adds_epi16(*coeff, round);
tmp = _mm_mulhi_epi16(qcoeff, quant);
qcoeff = _mm_add_epi16(tmp, qcoeff);
*coeff = _mm_mulhi_epi16(qcoeff, shift);
}
static INLINE __m128i calculate_dqcoeff(__m128i qcoeff, __m128i dequant) {
return _mm_mullo_epi16(qcoeff, dequant);
}
// Scan 16 values for eob reference in scan_ptr. Use masks (-1) from comparing
// to zbin to add 1 to the index in 'scan'.
static INLINE __m128i scan_for_eob(__m128i *coeff0, __m128i *coeff1,
const __m128i zbin_mask0,
const __m128i zbin_mask1,
const int16_t *scan_ptr, const int index,
const __m128i zero) {
const __m128i zero_coeff0 = _mm_cmpeq_epi16(*coeff0, zero);
const __m128i zero_coeff1 = _mm_cmpeq_epi16(*coeff1, zero);
__m128i scan0 = _mm_load_si128((const __m128i *)(scan_ptr + index));
__m128i scan1 = _mm_load_si128((const __m128i *)(scan_ptr + index + 8));
__m128i eob0, eob1;
// Add one to convert from indices to counts
scan0 = _mm_sub_epi16(scan0, zbin_mask0);
scan1 = _mm_sub_epi16(scan1, zbin_mask1);
eob0 = _mm_andnot_si128(zero_coeff0, scan0);
eob1 = _mm_andnot_si128(zero_coeff1, scan1);
return _mm_max_epi16(eob0, eob1);
}
static INLINE int16_t accumulate_eob(__m128i eob) {
__m128i eob_shuffled;
eob_shuffled = _mm_shuffle_epi32(eob, 0xe);
eob = _mm_max_epi16(eob, eob_shuffled);
eob_shuffled = _mm_shufflelo_epi16(eob, 0xe);
eob = _mm_max_epi16(eob, eob_shuffled);
eob_shuffled = _mm_shufflelo_epi16(eob, 0x1);
eob = _mm_max_epi16(eob, eob_shuffled);
return _mm_extract_epi16(eob, 1);
}
|
