KleidiCV Coverage Report

Directory:	./
File:	kleidicv/src/arithmetics/sub_neon.cpp
Date:	2026-01-20 20:58:59

	Exec	Total	Coverage
Lines:	27	27	100.0%
Functions:	24	24	100.0%
Branches:	176	176	100.0%

  
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      // SPDX-FileCopyrightText: 2023 - 2024 Arm Limited and/or its affiliates <open-source-office@arm.com>
    
      //
    
      // SPDX-License-Identifier: Apache-2.0
    
      #include <limits>
    
      #include "kleidicv/kleidicv.h"
    
      #include "kleidicv/neon.h"
    
      namespace kleidicv::neon {
    
      template <typename ScalarType>
    
      class SaturatingSub final : public UnrollTwice {
    
       public:
    
        using VecTraits = neon::VecTraits<ScalarType>;
    
        using VectorType = typename VecTraits::VectorType;
    
      14548
        VectorType vector_path(VectorType src_a, VectorType src_b) {
    
      14548
          return vqsubq(src_a, src_b);
    
        }
    
      5904
        ScalarType scalar_path(ScalarType src_a, ScalarType src_b) {
    
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          if (std::numeric_limits<ScalarType>::is_signed && src_b < 0) {
    
      742
            ScalarType result;
    
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      742
            return __builtin_sub_overflow(src_a, src_b, &result)
    
      176
                       ? std::numeric_limits<ScalarType>::max()
    
      566
                       : result;
    
      742
          }
    
      5162
          ScalarType result;
    
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      5162
          return __builtin_sub_overflow(src_a, src_b, &result)
    
      921
                     ? std::numeric_limits<ScalarType>::lowest()
    
      4241
                     : result;
    
      5904
        }
    
      };  // end of class SaturatingSub<ScalarType>
    
      template <typename T>
    
      786
      kleidicv_error_t saturating_sub(const T *src_a, size_t src_a_stride,
    
                                      const T *src_b, size_t src_b_stride, T *dst,
    
                                      size_t dst_stride, size_t width,
    
                                      size_t height) {
    
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      786
        CHECK_POINTER_AND_STRIDE(src_a, src_a_stride, height);
    
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      772
        CHECK_POINTER_AND_STRIDE(src_b, src_b_stride, height);
    
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      758
        CHECK_POINTER_AND_STRIDE(dst, dst_stride, height);
    
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      744
        CHECK_IMAGE_SIZE(width, height);
    
      728
        SaturatingSub<T> operation;
    
      728
        Rectangle rect{width, height};
    
      728
        Rows<const T> src_a_rows{src_a, src_a_stride};
    
      728
        Rows<const T> src_b_rows{src_b, src_b_stride};
    
      728
        Rows<T> dst_rows{dst, dst_stride};
    
      728
        apply_operation_by_rows(operation, rect, src_a_rows, src_b_rows, dst_rows);
    
      728
        return KLEIDICV_OK;
    
      786
      }
    
      #define KLEIDICV_INSTANTIATE_TEMPLATE(type)                                \
    
        template KLEIDICV_TARGET_FN_ATTRS kleidicv_error_t saturating_sub<type>( \
    
            const type *src_a, size_t src_a_stride, const type *src_b,           \
    
            size_t src_b_stride, type *dst, size_t dst_stride, size_t width,     \
    
            size_t height)
    
      KLEIDICV_INSTANTIATE_TEMPLATE(int8_t);
    
      KLEIDICV_INSTANTIATE_TEMPLATE(uint8_t);
    
      KLEIDICV_INSTANTIATE_TEMPLATE(int16_t);
    
      KLEIDICV_INSTANTIATE_TEMPLATE(uint16_t);
    
      KLEIDICV_INSTANTIATE_TEMPLATE(int32_t);
    
      KLEIDICV_INSTANTIATE_TEMPLATE(uint32_t);
    
      KLEIDICV_INSTANTIATE_TEMPLATE(int64_t);
    
      KLEIDICV_INSTANTIATE_TEMPLATE(uint64_t);
    
      }  // namespace kleidicv::neon

Line	Branch	Exec	Source
1			// SPDX-FileCopyrightText: 2023 - 2024 Arm Limited and/or its affiliates <open-source-office@arm.com>
2			//
3			// SPDX-License-Identifier: Apache-2.0
4
5			#include <limits>
6
7			#include "kleidicv/kleidicv.h"
8			#include "kleidicv/neon.h"
9
10			namespace kleidicv::neon {
11
12			template <typename ScalarType>
13			class SaturatingSub final : public UnrollTwice {
14			public:
15			using VecTraits = neon::VecTraits<ScalarType>;
16			using VectorType = typename VecTraits::VectorType;
17
18		14548	VectorType vector_path(VectorType src_a, VectorType src_b) {
19		14548	return vqsubq(src_a, src_b);
20			}
21
22		5904	ScalarType scalar_path(ScalarType src_a, ScalarType src_b) {
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24		742	ScalarType result;
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26		176	? std::numeric_limits<ScalarType>::max()
27		566	: result;
28		742	}
29
30		5162	ScalarType result;
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32		921	? std::numeric_limits<ScalarType>::lowest()
33		4241	: result;
34		5904	}
35			}; // end of class SaturatingSub<ScalarType>
36
37			template <typename T>
38		786	kleidicv_error_t saturating_sub(const T *src_a, size_t src_a_stride,
39			const T src_b, size_t src_b_stride, T dst,
40			size_t dst_stride, size_t width,
41			size_t height) {
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46
47		728	SaturatingSub<T> operation;
48		728	Rectangle rect{width, height};
49		728	Rows<const T> src_a_rows{src_a, src_a_stride};
50		728	Rows<const T> src_b_rows{src_b, src_b_stride};
51		728	Rows<T> dst_rows{dst, dst_stride};
52		728	apply_operation_by_rows(operation, rect, src_a_rows, src_b_rows, dst_rows);
53		728	return KLEIDICV_OK;
54		786	}
55
56			#define KLEIDICV_INSTANTIATE_TEMPLATE(type) \
57			template KLEIDICV_TARGET_FN_ATTRS kleidicv_error_t saturating_sub<type>( \
58			const type src_a, size_t src_a_stride, const type src_b, \
59			size_t src_b_stride, type *dst, size_t dst_stride, size_t width, \
60			size_t height)
61
62			KLEIDICV_INSTANTIATE_TEMPLATE(int8_t);
63			KLEIDICV_INSTANTIATE_TEMPLATE(uint8_t);
64			KLEIDICV_INSTANTIATE_TEMPLATE(int16_t);
65			KLEIDICV_INSTANTIATE_TEMPLATE(uint16_t);
66			KLEIDICV_INSTANTIATE_TEMPLATE(int32_t);
67			KLEIDICV_INSTANTIATE_TEMPLATE(uint32_t);
68			KLEIDICV_INSTANTIATE_TEMPLATE(int64_t);
69			KLEIDICV_INSTANTIATE_TEMPLATE(uint64_t);
70
71			} // namespace kleidicv::neon
72