Joseph Dobson | 6f8b17d | 2020-02-11 19:32:11 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2020 ARM Limited. |
| 3 | * |
| 4 | * SPDX-License-Identifier: MIT |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to |
| 8 | * deal in the Software without restriction, including without limitation the |
| 9 | * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| 10 | * sell copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in all |
| 14 | * copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 19 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 22 | * SOFTWARE. |
| 23 | */ |
| 24 | #pragma once |
| 25 | |
| 26 | #include "arm_compute/core/Window.h" |
| 27 | #include "arm_compute/core/Dimensions.h" |
| 28 | #include "src/core/NEON/kernels/arm_gemm/ndrange.hpp" |
| 29 | |
| 30 | #include <cassert> |
| 31 | |
| 32 | /* This file contains mapping between integral types used in arm_compute and arm_gemm |
| 33 | * These two codebases both require a degree of separation for the sake of modularity |
| 34 | * so maintain their own types which represent similar information. |
| 35 | */ |
| 36 | |
| 37 | namespace arm_gemm { |
| 38 | |
| 39 | //we want to unify the maximum number of dimensions used beween arm_gemm and arm compute library |
| 40 | constexpr std::size_t ndrange_max = |
| 41 | arm_compute::Dimensions<unsigned int>::num_max_dimensions; |
| 42 | |
| 43 | using ndrange_t=NDRange<ndrange_max>; |
| 44 | using ndcoord_t=NDCoordinate<ndrange_max>; |
| 45 | |
| 46 | /* Converts an `arm_gemm::ndrange_t` to a `arm_compute::Window` |
| 47 | * |
| 48 | * As `NDRange<T>` does not not encode start positions, we specify |
| 49 | * the start to be zero in the produced `arm_compute::Window` |
| 50 | * |
| 51 | * @param [ndr] the `arm_gemm::ndrange_t` we wish to convert into a `arm_compute::Window` |
| 52 | * @returns an `arm_compute::Window` representing the same dimensional ranges as `ndr` |
| 53 | */ |
| 54 | inline arm_compute::Window to_window(const ndrange_t& ndr) { |
| 55 | arm_compute::Window win; |
| 56 | |
| 57 | for(unsigned int i = 0; i!=ndrange_max; ++i) { |
| 58 | //populate the window with the dimensions of the NDRange |
| 59 | win.set(i, arm_compute::Window::Dimension(0, ndr.get_size(i))); |
| 60 | } |
| 61 | |
| 62 | return win; |
| 63 | } |
| 64 | |
| 65 | /* |
| 66 | * Converts an `arm_gemm::ndcoord_t` to a `arm_compute::Window` |
| 67 | * |
| 68 | * @param [ndc] the `arm_gemm::ndcoord_t` we wish to convert into a `arm_compute::Window` |
| 69 | * @returns an `arm_compute::Window` representing the same dimensional ranges as `ndc` |
| 70 | */ |
| 71 | inline arm_compute::Window to_window(const ndcoord_t& ndc) { |
| 72 | arm_compute::Window win; |
| 73 | |
| 74 | for(unsigned int i = 0; i!=ndrange_max; ++i) { |
| 75 | const auto start = ndc.get_position(i); |
| 76 | const auto size = ndc.get_size(i); |
| 77 | const auto stop = start + size; |
| 78 | |
| 79 | //populate the window with the dimensions of the NDRange |
| 80 | win.set(i, arm_compute::Window::Dimension(start, stop)); |
| 81 | } |
| 82 | |
| 83 | return win; |
| 84 | } |
| 85 | |
| 86 | /** Convert an `arm_compute::Window` to an `arm_gemm::NDRange` of the same max dimensions |
| 87 | * |
| 88 | * It should be noted that `arm_compute::Window` specifies a `start()` and an `end()` |
| 89 | * where as `arm_gemm::ndrange_t` only has a size, as a result we store the delta between the range |
| 90 | * |
| 91 | * @param [win] the `arm_compute::Window` we want to convert to `arm_gemm::ndrange_t` |
| 92 | * @return the resultant ndrange_t |
| 93 | */ |
| 94 | inline ndrange_t to_ndrange(const arm_compute::Window& win) { |
| 95 | return { |
| 96 | static_cast<unsigned int>(win[0].end() - win[0].start()), |
| 97 | static_cast<unsigned int>(win[1].end() - win[1].start()), |
| 98 | static_cast<unsigned int>(win[2].end() - win[2].start()), |
| 99 | static_cast<unsigned int>(win[3].end() - win[3].start()), |
| 100 | static_cast<unsigned int>(win[4].end() - win[4].start()), |
| 101 | static_cast<unsigned int>(win[5].end() - win[5].start()) |
| 102 | }; |
| 103 | } |
| 104 | |
| 105 | /** Convert an `arm_compute::Window` to an `arm_gemm::NDCoord` of the same max dimensions |
| 106 | * |
| 107 | * @param [win] the `arm_compute::Window` we want to convert to `arm_gemm::ndcoord_t` |
| 108 | * @return the resultant ndcoord_t |
| 109 | */ |
| 110 | inline ndcoord_t to_ndcoord(const arm_compute::Window& win) { |
| 111 | return { |
| 112 | { static_cast<unsigned int>(win[0].start()), static_cast<unsigned int>(win[0].end() - win[0].start()) }, |
| 113 | { static_cast<unsigned int>(win[1].start()), static_cast<unsigned int>(win[1].end() - win[1].start()) }, |
| 114 | { static_cast<unsigned int>(win[2].start()), static_cast<unsigned int>(win[2].end() - win[2].start()) }, |
| 115 | { static_cast<unsigned int>(win[3].start()), static_cast<unsigned int>(win[3].end() - win[3].start()) }, |
| 116 | { static_cast<unsigned int>(win[4].start()), static_cast<unsigned int>(win[4].end() - win[4].start()) }, |
| 117 | { static_cast<unsigned int>(win[5].start()), static_cast<unsigned int>(win[5].end() - win[5].start()) } |
| 118 | }; |
| 119 | } |
| 120 | |
| 121 | } //namespace arm_gemm |