KleidiCV Coverage Report

Directory: ./
File: kleidicv/include/kleidicv/workspace/border_7x7.h
Date: 2025-11-25 17:23:32
Exec Total Coverage
Lines: 68 68 100.0%
Functions: 294 294 100.0%
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1 // SPDX-FileCopyrightText: 2024 - 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_7X7_H
6 #define KLEIDICV_WORKSPACE_BORDER_7X7_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 7x7 filters.
18 template <typename T>
19 class FixedBorderInfo<T, 7UL> 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 145536 Offsets(ptrdiff_t o0, ptrdiff_t o1, ptrdiff_t o2, ptrdiff_t o3,
29 ptrdiff_t o4, ptrdiff_t o5, ptrdiff_t o6)
30 145536 : offsets_{o0, o1, o2, o3, o4, o5, o6} {}
31
32 3457052 ptrdiff_t c0() const { return offsets_[0]; }
33 3457052 ptrdiff_t c1() const { return offsets_[1]; }
34 3457052 ptrdiff_t c2() const { return offsets_[2]; }
35 3457052 ptrdiff_t c3() const { return offsets_[3]; }
36 3457052 ptrdiff_t c4() const { return offsets_[4]; }
37 3457052 ptrdiff_t c5() const { return offsets_[5]; }
38 3457052 ptrdiff_t c6() const { return offsets_[6]; }
39
40 private:
41 ptrdiff_t offsets_[7];
42 };
43
44 4336 FixedBorderInfo(size_t height, FixedBorderType border_type)
45 4336 : height_(height), border_type_(border_type) {}
46
47 // Returns offsets without the influence of any border.
48 23664 Offsets offsets_without_border() const KLEIDICV_STREAMING {
49 23664 return get(-3, -2, -1, 0, 1, 2, 3);
50 }
51
52 // Returns offsets for columns affected by left border.
53 60936 Offsets offsets_with_left_border(size_t column_index) const
54 KLEIDICV_STREAMING {
55
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 60936 switch (border_type_) {
56 case FixedBorderType::REPLICATE:
57
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 27432 if (column_index == 0) {
58 9144 return get(0, 0, 0, 0, 1, 2, 3);
59
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 18288 } else if (column_index == 1) {
60 9144 return get(-1, -1, -1, 0, 1, 2, 3);
61 } else {
62 9144 return get(-2, -2, -1, 0, 1, 2, 3);
63 }
64 break;
65
66 case FixedBorderType::REFLECT:
67
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 11112 if (column_index == 0) {
68 3704 return get(2, 1, 0, 0, 1, 2, 3);
69
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 7408 } else if (column_index == 1) {
70 3704 return get(0, -1, -1, 0, 1, 2, 3);
71 } else {
72 3704 return get(-2, -2, -1, 0, 1, 2, 3);
73 }
74 break;
75
76 case FixedBorderType::WRAP:
77
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 11112 if (column_index == 0) {
78 3704 return get(height_ - 3, height_ - 2, height_ - 1, 0, 1, 2, 3);
79
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 7408 } else if (column_index == 1) {
80 3704 return get(height_ - 3, height_ - 2, -1, 0, 1, 2, 3);
81 } else {
82 3704 return get(height_ - 3, -2, -1, 0, 1, 2, 3);
83 }
84 break;
85
86 case FixedBorderType::REVERSE:
87
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 11280 if (column_index == 0) {
88 3760 return get(3, 2, 1, 0, 1, 2, 3);
89
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 7520 } else if (column_index == 1) {
90 3760 return get(1, 0, -1, 0, 1, 2, 3);
91 } else {
92 3760 return get(-1, -2, -1, 0, 1, 2, 3);
93 }
94 break;
95 }
96 // Unreachable. Compiler should emit a warning-as-error if any cases are
97 // uncovered above.
98 − return Offsets{}; // GCOVR_EXCL_LINE
99 60936 }
100
101 // Returns offsets for columns affected by right border.
102 60936 Offsets offsets_with_right_border(size_t column_index) const
103 KLEIDICV_STREAMING {
104
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 60936 switch (border_type_) {
105 case FixedBorderType::REPLICATE:
106
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 27432 if (column_index == (height_ - 3)) {
107 9144 return get(-3, -2, -1, 0, 1, 2, 2);
108
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 18288 } else if (column_index == (height_ - 2)) {
109 9144 return get(-3, -2, -1, 0, 1, 1, 1);
110 } else {
111 9144 return get(-3, -2, -1, 0, 0, 0, 0);
112 }
113 break;
114
115 case FixedBorderType::REFLECT:
116
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 11112 if (column_index == (height_ - 3)) {
117 3704 return get(-3, -2, -1, 0, 1, 2, 2);
118
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 7408 } else if (column_index == (height_ - 2)) {
119 3704 return get(-3, -2, -1, 0, 1, 1, 0);
120 } else {
121 3704 return get(-3, -2, -1, 0, 0, -1, -2);
122 }
123 break;
124
125 case FixedBorderType::WRAP:
126
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 11112 if (column_index == (height_ - 3)) {
127 3704 return get(-3, -2, -1, 0, 1, 2, 3 - height_);
128
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 7408 } else if (column_index == (height_ - 2)) {
129 3704 return get(-3, -2, -1, 0, 1, 2 - height_, 3 - height_);
130 } else {
131 3704 return get(-3, -2, -1, 0, 1 - height_, 2 - height_, 3 - height_);
132 }
133 break;
134
135 case FixedBorderType::REVERSE:
136
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 11280 if (column_index == (height_ - 3)) {
137 3760 return get(-3, -2, -1, 0, 1, 2, 1);
138
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 7520 } else if (column_index == (height_ - 2)) {
139 3760 return get(-3, -2, -1, 0, 1, 0, -1);
140 } else {
141 3760 return get(-3, -2, -1, 0, -1, -2, -3);
142 }
143 break;
144 }
145 // Unreachable. Compiler should emit a warning-as-error if any cases are
146 // uncovered above.
147 − return Offsets{}; // GCOVR_EXCL_LINE
148 60936 }
149
150 // Returns offsets for rows or columns affected by any border.
151 18192 Offsets offsets_with_border(size_t row_or_column_index) const
152 KLEIDICV_STREAMING {
153
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 18192 if (row_or_column_index <= 2U) {
154 // Rows and columns have the same offsets.
155 6360 return offsets_with_left_border(row_or_column_index);
156 }
157
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 11832 if (row_or_column_index >= (height_ - 3U)) {
158 // Rows and columns have the same offsets.
159 6360 return offsets_with_right_border(row_or_column_index);
160 }
161 5472 return offsets_without_border();
162 18192 }
163
164 private:
165 // Takes care of static signed to unsigned casts.
166 145536 Offsets get(ptrdiff_t o0, ptrdiff_t o1, ptrdiff_t o2, ptrdiff_t o3,
167 ptrdiff_t o4, ptrdiff_t o5,
168 ptrdiff_t o6) const KLEIDICV_STREAMING {
169 145536 return Offsets{o0, o1, o2, o3, o4, o5, o6};
170 }
171
172 size_t height_;
173 FixedBorderType border_type_;
174 }; // end of class FixedBorderInfo<T, 7UL>
175
176 // Shorthand for 7x7 filter border type.
177 template <typename T>
178 using FixedBorderInfo7x7 = FixedBorderInfo<T, 7UL>;
179
180 } // namespace KLEIDICV_TARGET_NAMESPACE
181
182 #endif // KLEIDICV_WORKSPACE_BORDER_7X7_H
183