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|---|---|---|---|
| 1 | // SPDX-FileCopyrightText: 2025 Arm Limited and/or its affiliates <open-source-office@arm.com> | ||
| 2 | // | ||
| 3 | // SPDX-License-Identifier: Apache-2.0 | ||
| 4 | |||
| 5 | #ifndef KLEIDICV_PROCESS_FILTERS_FILTER_2D_H | ||
| 6 | #define KLEIDICV_PROCESS_FILTERS_FILTER_2D_H | ||
| 7 | |||
| 8 | #include "kleidicv/kleidicv.h" | ||
| 9 | #include "kleidicv/types.h" | ||
| 10 | #include "kleidicv/workspace/border_types.h" | ||
| 11 | |||
| 12 | namespace KLEIDICV_TARGET_NAMESPACE { | ||
| 13 | |||
| 14 | // Primary Template for Filter 2D. | ||
| 15 | template <typename InnerFilterType, const size_t S> | ||
| 16 | class Filter2D; | ||
| 17 | |||
| 18 | template <typename FilterType> | ||
| 19 | 6952 | void process_filter2d(Rectangle rect, size_t y_begin, size_t y_end, | |
| 20 | Rows<const typename FilterType::SourceType> src_rows, | ||
| 21 | Rows<typename FilterType::DestinationType> dst_rows, | ||
| 22 | typename FilterType::BorderType border_type, | ||
| 23 | FilterType filter) KLEIDICV_STREAMING { | ||
| 24 | // Border helper which calculates border offsets. | ||
| 25 | 13904 | typename FilterType::BorderInfoType vertical_border{rect.height(), | |
| 26 | 6952 | border_type}; | |
| 27 | 13904 | typename FilterType::BorderInfoType horizontal_border{rect.width(), | |
| 28 | 6952 | border_type}; | |
| 29 | |||
| 30 |
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41848 | for (size_t vertical_index = y_begin; vertical_index < y_end; |
| 31 | 34896 | ++vertical_index) { | |
| 32 | 34896 | auto vertical_offsets = vertical_border.offsets_with_border(vertical_index); | |
| 33 | 34896 | constexpr size_t kMargin = filter.kMargin; | |
| 34 | |||
| 35 | // Process data affected by left border. | ||
| 36 | KLEIDICV_FORCE_LOOP_UNROLL | ||
| 37 |
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120496 | for (size_t horizontal_index = 0; horizontal_index < kMargin; |
| 38 | 85600 | ++horizontal_index) { | |
| 39 | 85600 | auto horizontal_offsets = | |
| 40 | 85600 | horizontal_border.offsets_with_left_border(horizontal_index); | |
| 41 | 85600 | filter.process_one_pixel_with_horizontal_borders( | |
| 42 | 85600 | src_rows.at(vertical_index, horizontal_index), | |
| 43 | 85600 | dst_rows.at(vertical_index, horizontal_index), vertical_offsets, | |
| 44 | 85600 | horizontal_offsets); | |
| 45 | 85600 | } | |
| 46 | |||
| 47 | // Process data which is not affected by any borders in bulk. | ||
| 48 | 34896 | size_t width_without_borders = rect.width() - (2 * kMargin); | |
| 49 | 34896 | auto horizontal_offsets = horizontal_border.offsets_without_border(); | |
| 50 | 34896 | filter.process_pixels_without_horizontal_borders( | |
| 51 | 34896 | width_without_borders, src_rows.at(vertical_index, kMargin), | |
| 52 | 34896 | dst_rows.at(vertical_index, kMargin), vertical_offsets, | |
| 53 | 34896 | horizontal_offsets); | |
| 54 | |||
| 55 | // Process data affected by right border. | ||
| 56 | KLEIDICV_FORCE_LOOP_UNROLL | ||
| 57 |
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120496 | for (size_t horizontal_index = 0; horizontal_index < kMargin; |
| 58 | 85600 | ++horizontal_index) { | |
| 59 | 85600 | size_t index = rect.width() - kMargin + horizontal_index; | |
| 60 | 85600 | auto horizontal_offsets = | |
| 61 | 85600 | horizontal_border.offsets_with_right_border(index); | |
| 62 | 85600 | filter.process_one_pixel_with_horizontal_borders( | |
| 63 | 85600 | src_rows.at(vertical_index, index), | |
| 64 | 85600 | dst_rows.at(vertical_index, index), vertical_offsets, | |
| 65 | 85600 | horizontal_offsets); | |
| 66 | 85600 | } | |
| 67 | 34896 | } | |
| 68 | 6952 | } | |
| 69 | |||
| 70 | template <typename FilterType> | ||
| 71 | 2544 | void process_filter2d_by_dual_rows( | |
| 72 | Rectangle rect, size_t y_begin, size_t y_end, | ||
| 73 | Rows<const typename FilterType::SourceType> src_rows, | ||
| 74 | Rows<typename FilterType::DestinationType> dst_rows, | ||
| 75 | typename FilterType::BorderType border_type, | ||
| 76 | FilterType filter) KLEIDICV_STREAMING { | ||
| 77 | // Border helper which calculates border offsets. | ||
| 78 | 5088 | typename FilterType::BorderInfoType vertical_border{rect.height(), | |
| 79 | 2544 | border_type}; | |
| 80 | 5088 | typename FilterType::BorderInfoType horizontal_border{rect.width(), | |
| 81 | 2544 | border_type}; | |
| 82 | 2544 | constexpr size_t kMargin = filter.kMargin; | |
| 83 | 2544 | size_t vertical_index = y_begin; | |
| 84 | |||
| 85 |
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11536 | for (; vertical_index < y_end - 1; vertical_index += 2) { |
| 86 | // Recalculate vertical border offsets. | ||
| 87 | 8992 | auto vertical_offsets_0 = | |
| 88 | 8992 | vertical_border.offsets_with_border(vertical_index); | |
| 89 | 8992 | auto vertical_offsets_1 = | |
| 90 | 8992 | vertical_border.offsets_with_border(vertical_index + 1); | |
| 91 | |||
| 92 | // Process data affected by left border. | ||
| 93 | KLEIDICV_FORCE_LOOP_UNROLL | ||
| 94 |
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17984 | for (size_t horizontal_index = 0; horizontal_index < kMargin; |
| 95 | 8992 | ++horizontal_index) { | |
| 96 | 8992 | auto horizontal_offsets = | |
| 97 | 8992 | horizontal_border.offsets_with_left_border(horizontal_index); | |
| 98 | 8992 | filter.process_two_pixels_with_horizontal_borders( | |
| 99 | 8992 | src_rows.at(vertical_index, horizontal_index), | |
| 100 | 8992 | dst_rows.at(vertical_index, horizontal_index), vertical_offsets_0, | |
| 101 | 8992 | vertical_offsets_1, horizontal_offsets); | |
| 102 | 8992 | } | |
| 103 | |||
| 104 | // Process data which is not affected by any borders in bulk. | ||
| 105 | 8992 | size_t width_without_borders = rect.width() - (2 * kMargin); | |
| 106 | 8992 | auto horizontal_offsets = horizontal_border.offsets_without_border(); | |
| 107 | 8992 | filter.process_pixels_of_dual_rows_without_horizontal_borders( | |
| 108 | 8992 | width_without_borders, src_rows.at(vertical_index, kMargin), | |
| 109 | 8992 | dst_rows.at(vertical_index, kMargin), vertical_offsets_0, | |
| 110 | 8992 | vertical_offsets_1, horizontal_offsets); | |
| 111 | |||
| 112 | // Process data affected by right border. | ||
| 113 | KLEIDICV_FORCE_LOOP_UNROLL | ||
| 114 |
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17984 | for (size_t horizontal_index = 0; horizontal_index < kMargin; |
| 115 | 8992 | ++horizontal_index) { | |
| 116 | 8992 | size_t index = rect.width() - kMargin + horizontal_index; | |
| 117 | 8992 | auto horizontal_offsets = | |
| 118 | 8992 | horizontal_border.offsets_with_right_border(index); | |
| 119 | |||
| 120 | 8992 | filter.process_two_pixels_with_horizontal_borders( | |
| 121 | 8992 | src_rows.at(vertical_index, index), | |
| 122 | 8992 | dst_rows.at(vertical_index, index), vertical_offsets_0, | |
| 123 | 8992 | vertical_offsets_1, horizontal_offsets); | |
| 124 | 8992 | } | |
| 125 | 8992 | } | |
| 126 | |||
| 127 | 5088 | process_filter2d(rect, vertical_index, y_end, src_rows, dst_rows, border_type, | |
| 128 | 2544 | filter); | |
| 129 | 2544 | } | |
| 130 | |||
| 131 | } // namespace KLEIDICV_TARGET_NAMESPACE | ||
| 132 | |||
| 133 | #endif // KLEIDICV_PROCESS_FILTERS_FILTER_2D_H | ||
| 134 |