1 /*
2 * Copyright (c) 2023, Alliance for Open Media. All rights reserved.
3 *
4 * This source code is subject to the terms of the BSD 2 Clause License and
5 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
6 * was not distributed with this source code in the LICENSE file, you can
7 * obtain it at www.aomedia.org/license/software. If the Alliance for Open
8 * Media Patent License 1.0 was not distributed with this source code in the
9 * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
10 */
11
12 #ifndef AOM_AOM_DSP_ARM_DIST_WTD_AVG_NEON_H_
13 #define AOM_AOM_DSP_ARM_DIST_WTD_AVG_NEON_H_
14
15 #include <arm_neon.h>
16
17 #include "aom_dsp/aom_dsp_common.h"
18 #include "av1/common/enums.h"
19
dist_wtd_avg_u8x8(uint8x8_t a,uint8x8_t b,uint8x8_t wta,uint8x8_t wtb)20 static inline uint8x8_t dist_wtd_avg_u8x8(uint8x8_t a, uint8x8_t b,
21 uint8x8_t wta, uint8x8_t wtb) {
22 uint16x8_t wtd_sum = vmull_u8(a, wta);
23
24 wtd_sum = vmlal_u8(wtd_sum, b, wtb);
25
26 return vrshrn_n_u16(wtd_sum, DIST_PRECISION_BITS);
27 }
28
dist_wtd_avg_u16x4(uint16x4_t a,uint16x4_t b,uint16x4_t wta,uint16x4_t wtb)29 static inline uint16x4_t dist_wtd_avg_u16x4(uint16x4_t a, uint16x4_t b,
30 uint16x4_t wta, uint16x4_t wtb) {
31 uint32x4_t wtd_sum = vmull_u16(a, wta);
32
33 wtd_sum = vmlal_u16(wtd_sum, b, wtb);
34
35 return vrshrn_n_u32(wtd_sum, DIST_PRECISION_BITS);
36 }
37
dist_wtd_avg_u8x16(uint8x16_t a,uint8x16_t b,uint8x16_t wta,uint8x16_t wtb)38 static inline uint8x16_t dist_wtd_avg_u8x16(uint8x16_t a, uint8x16_t b,
39 uint8x16_t wta, uint8x16_t wtb) {
40 uint16x8_t wtd_sum_lo = vmull_u8(vget_low_u8(a), vget_low_u8(wta));
41 uint16x8_t wtd_sum_hi = vmull_u8(vget_high_u8(a), vget_high_u8(wta));
42
43 wtd_sum_lo = vmlal_u8(wtd_sum_lo, vget_low_u8(b), vget_low_u8(wtb));
44 wtd_sum_hi = vmlal_u8(wtd_sum_hi, vget_high_u8(b), vget_high_u8(wtb));
45
46 uint8x8_t wtd_avg_lo = vrshrn_n_u16(wtd_sum_lo, DIST_PRECISION_BITS);
47 uint8x8_t wtd_avg_hi = vrshrn_n_u16(wtd_sum_hi, DIST_PRECISION_BITS);
48
49 return vcombine_u8(wtd_avg_lo, wtd_avg_hi);
50 }
51
dist_wtd_avg_u16x8(uint16x8_t a,uint16x8_t b,uint16x8_t wta,uint16x8_t wtb)52 static inline uint16x8_t dist_wtd_avg_u16x8(uint16x8_t a, uint16x8_t b,
53 uint16x8_t wta, uint16x8_t wtb) {
54 uint32x4_t wtd_sum_lo = vmull_u16(vget_low_u16(a), vget_low_u16(wta));
55 uint32x4_t wtd_sum_hi = vmull_u16(vget_high_u16(a), vget_high_u16(wta));
56
57 wtd_sum_lo = vmlal_u16(wtd_sum_lo, vget_low_u16(b), vget_low_u16(wtb));
58 wtd_sum_hi = vmlal_u16(wtd_sum_hi, vget_high_u16(b), vget_high_u16(wtb));
59
60 uint16x4_t wtd_avg_lo = vrshrn_n_u32(wtd_sum_lo, DIST_PRECISION_BITS);
61 uint16x4_t wtd_avg_hi = vrshrn_n_u32(wtd_sum_hi, DIST_PRECISION_BITS);
62
63 return vcombine_u16(wtd_avg_lo, wtd_avg_hi);
64 }
65
66 #endif // AOM_AOM_DSP_ARM_DIST_WTD_AVG_NEON_H_
67