KleidiCV Coverage Report

Directory: ./
File: kleidicv/src/analysis/min_max_sc.h
Date: 2025-09-25 14:13:34
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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_MIN_MAX_SC_H
6 #define KLEIDICV_MIN_MAX_SC_H
7
8 #include <limits>
9
10 #include "kleidicv/kleidicv.h"
11 #include "kleidicv/sve2.h"
12
13 namespace KLEIDICV_TARGET_NAMESPACE {
14
15 template <typename ScalarType>
16 class MinMax final : public UnrollTwice {
17 public:
18 using VecTraits = KLEIDICV_TARGET_NAMESPACE::VecTraits<ScalarType>;
19 using VectorType = typename VecTraits::VectorType;
20 using ContextType = Context;
21
22 1780 MinMax(VectorType &vmin, VectorType &vmax) KLEIDICV_STREAMING : vmin_{vmin},
23 1780 vmax_{vmax} {}
24
25 9992 void vector_path(ContextType ctx, VectorType src) KLEIDICV_STREAMING {
26 9992 auto pg = ctx.predicate();
27 9992 vmin_ = svmin_m(pg, vmin_, src);
28 9992 vmax_ = svmax_m(pg, vmax_, src);
29 9992 }
30
31 1036 ScalarType get_min() const KLEIDICV_STREAMING {
32 1036 auto pg = VecTraits::svptrue();
33 2072 return svminv(pg, vmin_);
34 1036 }
35
36 1036 ScalarType get_max() const KLEIDICV_STREAMING {
37 1036 auto pg = VecTraits::svptrue();
38 2072 return svmaxv(pg, vmax_);
39 1036 }
40
41 private:
42 VectorType &vmin_, &vmax_;
43 }; // end of class MinMax<T>
44
45 template <typename ScalarType>
46 2196 kleidicv_error_t min_max_sc(const ScalarType *src, size_t src_stride,
47 size_t width, size_t height, ScalarType *min_value,
48 ScalarType *max_value) KLEIDICV_STREAMING {
49
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 2196 CHECK_POINTER_AND_STRIDE(src, src_stride, height);
50
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 1828 CHECK_IMAGE_SIZE(width, height);
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52
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 1804 if (KLEIDICV_UNLIKELY(width == 0 || height == 0)) {
53 24 return KLEIDICV_ERROR_RANGE;
54 }
55
56 1780 Rectangle rect{width, height};
57 1780 Rows<const ScalarType> src_rows{src, src_stride};
58
59 using VecTraits = KLEIDICV_TARGET_NAMESPACE::VecTraits<ScalarType>;
60 using VectorType = typename VecTraits::VectorType;
61 1780 VectorType vmin = VecTraits::svdup(std::numeric_limits<ScalarType>::max());
62 1780 VectorType vmax = VecTraits::svdup(std::numeric_limits<ScalarType>::lowest());
63
64 1780 MinMax<ScalarType> operation{vmin, vmax};
65
66 1780 apply_operation_by_rows(operation, rect, src_rows);
67
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 1780 if (min_value) {
68 1036 *min_value = operation.get_min();
69 1036 }
70
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 1780 if (max_value) {
71 1036 *max_value = operation.get_max();
72 1036 }
73 1780 return KLEIDICV_OK;
74 2196 }
75
76 } // namespace KLEIDICV_TARGET_NAMESPACE
77
78 #endif // KLEIDICV_MIN_MAX_SC_H
79