KleidiCV Coverage Report

Directory: ./
File: kleidicv/include/kleidicv/workspace/border_5x5.h
Date: 2025-09-25 14:13:34
Exec Total Coverage
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Functions: 252 252 100.0%
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1 // SPDX-FileCopyrightText: 2023 - 2025 Arm Limited and/or its affiliates <open-source-office@arm.com>
2 //
3 // SPDX-License-Identifier: Apache-2.0
4
5 #ifndef KLEIDICV_WORKSPACE_BORDER_5X5_H
6 #define KLEIDICV_WORKSPACE_BORDER_5X5_H
7
8 #include "border_types.h"
9 #include "kleidicv/kleidicv.h"
10
11 namespace KLEIDICV_TARGET_NAMESPACE {
12
13 // Border offsets for fixed-size filters.
14 template <typename T, const size_t S>
15 class FixedBorderInfo;
16
17 // Border offsets for 5x5 filters.
18 template <typename T>
19 class FixedBorderInfo<T, 5UL> final {
20 public:
21 // Simple object holding read-only constant offsets.
22 class Offsets final {
23 public:
24 // NOLINTBEGIN(hicpp-member-init)
25 Offsets() = default;
26 // NOLINTEND(hicpp-member-init)
27
28 129882 Offsets(ptrdiff_t o0, ptrdiff_t o1, ptrdiff_t o2, ptrdiff_t o3,
29 ptrdiff_t o4)
30 129882 : offsets_{o0, o1, o2, o3, o4} {}
31
32 1266044 ptrdiff_t c0() const { return offsets_[0]; }
33 1266044 ptrdiff_t c1() const { return offsets_[1]; }
34 1266044 ptrdiff_t c2() const { return offsets_[2]; }
35 1266044 ptrdiff_t c3() const { return offsets_[3]; }
36 1266044 ptrdiff_t c4() const { return offsets_[4]; }
37
38 private:
39 ptrdiff_t offsets_[5];
40 };
41
42 4854 FixedBorderInfo(size_t height, FixedBorderType border_type)
43 4854 : height_(height), border_type_(border_type) {}
44
45 // Returns offsets without the influence of any border.
46 35106 Offsets offsets_without_border() const KLEIDICV_STREAMING {
47 35106 return get(-2, -1, 0, 1, 2);
48 }
49
50 // Returns offsets for columns affected by left border.
51 47388 Offsets offsets_with_left_border(size_t column_index) const
52 KLEIDICV_STREAMING {
53
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 47388 switch (border_type_) {
54 case FixedBorderType::REPLICATE:
55
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 32478 if (column_index == 0) {
56 16722 return get(0, 0, 0, 1, 2);
57 } else {
58 15756 return get(-1, -1, 0, 1, 2);
59 }
60 break;
61
62 case FixedBorderType::REFLECT:
63
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 4950 if (column_index == 0) {
64 2547 return get(1, 0, 0, 1, 2);
65 } else {
66 2403 return get(-1, -1, 0, 1, 2);
67 }
68 break;
69
70 case FixedBorderType::WRAP:
71
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 4950 if (column_index == 0) {
72 2547 return get(height_ - 2, height_ - 1, 0, 1, 2);
73 } else {
74 2403 return get(height_ - 2, -1, 0, 1, 2);
75 }
76 break;
77
78 case FixedBorderType::REVERSE:
79
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 5010 if (column_index == 0) {
80 2577 return get(2, 1, 0, 1, 2);
81 } else {
82 2433 return get(0, -1, 0, 1, 2);
83 }
84 break;
85 }
86 // Unreachable. Compiler should emit a warning-as-error if any cases are
87 // uncovered above.
88 − return Offsets{}; // GCOVR_EXCL_LINE
89 47388 }
90
91 // Returns offsets for columns affected by right border.
92 47388 Offsets offsets_with_right_border(size_t column_index) const
93 KLEIDICV_STREAMING {
94
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 47388 switch (border_type_) {
95 case FixedBorderType::REPLICATE:
96
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 32478 if (column_index == (height_ - 2)) {
97 16674 return get(-2, -1, 0, 1, 1);
98 } else {
99 15804 return get(-2, -1, 0, 0, 0);
100 }
101 break;
102
103 case FixedBorderType::REFLECT:
104
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 4950 if (column_index == (height_ - 2)) {
105 2517 return get(-2, -1, 0, 1, 1);
106 } else {
107 2433 return get(-2, -1, 0, 0, -1);
108 }
109 break;
110
111 case FixedBorderType::WRAP:
112
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 4950 if (column_index == (height_ - 2)) {
113 2517 return get(-2, -1, 0, 1, 2 - height_);
114 } else {
115 2433 return get(-2, -1, 0, 1 - height_, 2 - height_);
116 }
117 break;
118
119 case FixedBorderType::REVERSE:
120
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 5010 if (column_index == (height_ - 2)) {
121 2547 return get(-2, -1, 0, 1, 0);
122 } else {
123 2463 return get(-2, -1, 0, -1, -2);
124 }
125 break;
126 }
127 // Unreachable. Compiler should emit a warning-as-error if any cases are
128 // uncovered above.
129 − return Offsets{}; // GCOVR_EXCL_LINE
130 47388 }
131
132 // Returns offsets for rows or columns affected by any border.
133 22074 Offsets offsets_with_border(size_t row_or_column_index) const
134 KLEIDICV_STREAMING {
135
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 22074 if (row_or_column_index <= 1U) {
136 // Rows and columns have the same offsets.
137 4521 return offsets_with_left_border(row_or_column_index);
138 }
139
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 17553 if (row_or_column_index >= (height_ - 2U)) {
140 // Rows and columns have the same offsets.
141 4521 return offsets_with_right_border(row_or_column_index);
142 }
143 13032 return offsets_without_border();
144 22074 }
145
146 private:
147 // Takes care of static signed to unsigned casts.
148 129882 Offsets get(ptrdiff_t o0, ptrdiff_t o1, ptrdiff_t o2, ptrdiff_t o3,
149 ptrdiff_t o4) const KLEIDICV_STREAMING {
150 129882 return Offsets{o0, o1, o2, o3, o4};
151 }
152
153 size_t height_;
154 FixedBorderType border_type_;
155 }; // end of class FixedBorderInfo<T, 5UL>
156
157 // Shorthand for 5x5 filter border type.
158 template <typename T>
159 using FixedBorderInfo5x5 = FixedBorderInfo<T, 5UL>;
160
161 } // namespace KLEIDICV_TARGET_NAMESPACE
162
163 #endif // KLEIDICV_WORKSPACE_BORDER_5X5_H
164