/src/libavif/ext/aom/aom_dsp/recenter.h
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1 | | /* |
2 | | * Copyright (c) 2018, 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_RECENTER_H_ |
13 | | #define AOM_AOM_DSP_RECENTER_H_ |
14 | | |
15 | | #include "config/aom_config.h" |
16 | | |
17 | | #include "aom/aom_integer.h" |
18 | | |
19 | | // Inverse recenters a non-negative literal v around a reference r |
20 | 87.3k | static inline uint16_t inv_recenter_nonneg(uint16_t r, uint16_t v) { |
21 | 87.3k | if (v > (r << 1)) |
22 | 4.82k | return v; |
23 | 82.5k | else if ((v & 1) == 0) |
24 | 42.4k | return (v >> 1) + r; |
25 | 40.0k | else |
26 | 40.0k | return r - ((v + 1) >> 1); |
27 | 87.3k | } bitreader_buffer.c:inv_recenter_nonneg Line | Count | Source | 20 | 32.5k | static inline uint16_t inv_recenter_nonneg(uint16_t r, uint16_t v) { | 21 | 32.5k | if (v > (r << 1)) | 22 | 0 | return v; | 23 | 32.5k | else if ((v & 1) == 0) | 24 | 18.5k | return (v >> 1) + r; | 25 | 13.9k | else | 26 | 13.9k | return r - ((v + 1) >> 1); | 27 | 32.5k | } |
Unexecuted instantiation: bitwriter_buffer.c:inv_recenter_nonneg binary_codes_reader.c:inv_recenter_nonneg Line | Count | Source | 20 | 54.7k | static inline uint16_t inv_recenter_nonneg(uint16_t r, uint16_t v) { | 21 | 54.7k | if (v > (r << 1)) | 22 | 4.82k | return v; | 23 | 49.9k | else if ((v & 1) == 0) | 24 | 23.8k | return (v >> 1) + r; | 25 | 26.0k | else | 26 | 26.0k | return r - ((v + 1) >> 1); | 27 | 54.7k | } |
Unexecuted instantiation: binary_codes_writer.c:inv_recenter_nonneg |
28 | | |
29 | | // Inverse recenters a non-negative literal v in [0, n-1] around a |
30 | | // reference r also in [0, n-1] |
31 | | static inline uint16_t inv_recenter_finite_nonneg(uint16_t n, uint16_t r, |
32 | 87.3k | uint16_t v) { |
33 | 87.3k | if ((r << 1) <= n) { |
34 | 72.3k | return inv_recenter_nonneg(r, v); |
35 | 72.3k | } else { |
36 | 15.0k | return n - 1 - inv_recenter_nonneg(n - 1 - r, v); |
37 | 15.0k | } |
38 | 87.3k | } bitreader_buffer.c:inv_recenter_finite_nonneg Line | Count | Source | 32 | 32.5k | uint16_t v) { | 33 | 32.5k | if ((r << 1) <= n) { | 34 | 32.5k | return inv_recenter_nonneg(r, v); | 35 | 32.5k | } else { | 36 | 0 | return n - 1 - inv_recenter_nonneg(n - 1 - r, v); | 37 | 0 | } | 38 | 32.5k | } |
Unexecuted instantiation: bitwriter_buffer.c:inv_recenter_finite_nonneg binary_codes_reader.c:inv_recenter_finite_nonneg Line | Count | Source | 32 | 54.7k | uint16_t v) { | 33 | 54.7k | if ((r << 1) <= n) { | 34 | 39.7k | return inv_recenter_nonneg(r, v); | 35 | 39.7k | } else { | 36 | 15.0k | return n - 1 - inv_recenter_nonneg(n - 1 - r, v); | 37 | 15.0k | } | 38 | 54.7k | } |
Unexecuted instantiation: binary_codes_writer.c:inv_recenter_finite_nonneg |
39 | | |
40 | | // Recenters a non-negative literal v around a reference r |
41 | 54.0k | static inline uint16_t recenter_nonneg(uint16_t r, uint16_t v) { |
42 | 54.0k | if (v > (r << 1)) |
43 | 0 | return v; |
44 | 54.0k | else if (v >= r) |
45 | 29.5k | return ((v - r) << 1); |
46 | 24.4k | else |
47 | 24.4k | return ((r - v) << 1) - 1; |
48 | 54.0k | } Unexecuted instantiation: bitreader_buffer.c:recenter_nonneg Unexecuted instantiation: bitwriter_buffer.c:recenter_nonneg Unexecuted instantiation: binary_codes_reader.c:recenter_nonneg binary_codes_writer.c:recenter_nonneg Line | Count | Source | 41 | 54.0k | static inline uint16_t recenter_nonneg(uint16_t r, uint16_t v) { | 42 | 54.0k | if (v > (r << 1)) | 43 | 0 | return v; | 44 | 54.0k | else if (v >= r) | 45 | 29.5k | return ((v - r) << 1); | 46 | 24.4k | else | 47 | 24.4k | return ((r - v) << 1) - 1; | 48 | 54.0k | } |
|
49 | | |
50 | | // Recenters a non-negative literal v in [0, n-1] around a |
51 | | // reference r also in [0, n-1] |
52 | | static inline uint16_t recenter_finite_nonneg(uint16_t n, uint16_t r, |
53 | 54.0k | uint16_t v) { |
54 | 54.0k | if ((r << 1) <= n) { |
55 | 54.0k | return recenter_nonneg(r, v); |
56 | 18.4E | } else { |
57 | 18.4E | return recenter_nonneg(n - 1 - r, n - 1 - v); |
58 | 18.4E | } |
59 | 54.0k | } Unexecuted instantiation: bitreader_buffer.c:recenter_finite_nonneg Unexecuted instantiation: bitwriter_buffer.c:recenter_finite_nonneg Unexecuted instantiation: binary_codes_reader.c:recenter_finite_nonneg binary_codes_writer.c:recenter_finite_nonneg Line | Count | Source | 53 | 54.0k | uint16_t v) { | 54 | 54.0k | if ((r << 1) <= n) { | 55 | 54.0k | return recenter_nonneg(r, v); | 56 | 18.4E | } else { | 57 | 18.4E | return recenter_nonneg(n - 1 - r, n - 1 - v); | 58 | 18.4E | } | 59 | 54.0k | } |
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60 | | |
61 | | #endif // AOM_AOM_DSP_RECENTER_H_ |