Viet-Hoa Do | 4737094 | 2023-11-13 17:20:45 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2023 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 | |
| 25 | #include "arm_compute/core/Error.h" |
| 26 | |
| 27 | #include <cstdint> |
| 28 | #include <cstring> |
| 29 | |
| 30 | namespace arm_compute |
| 31 | { |
| 32 | namespace cpu |
| 33 | { |
| 34 | |
| 35 | void depth_to_space_nhwc_any( // |
| 36 | const uint8_t *src, |
| 37 | uint8_t *dst, |
| 38 | const uintptr_t src_shape[4], |
| 39 | const uintptr_t src_strides[4], |
| 40 | const uintptr_t dst_strides[4], |
| 41 | uintptr_t element_size, |
| 42 | uintptr_t block_size) |
| 43 | { |
| 44 | ARM_COMPUTE_ERROR_ON(src_strides[0] != element_size); |
| 45 | ARM_COMPUTE_ERROR_ON(dst_strides[0] != element_size); |
| 46 | |
| 47 | const auto src_block_row_stride = (src_shape[0] / block_size) * element_size; |
| 48 | const auto dst_width_block_stride = block_size * dst_strides[1]; |
| 49 | |
| 50 | auto *src_batch_ptr = src; |
| 51 | auto *dst_batch_ptr = dst; |
| 52 | |
| 53 | for (uintptr_t batch = 0; batch < src_shape[3]; ++batch) |
| 54 | { |
| 55 | auto *src_height_block_ptr = src_batch_ptr; |
| 56 | auto *dst_row_ptr = dst_batch_ptr; |
| 57 | |
| 58 | for (uintptr_t height_block = 0; height_block < src_shape[2]; ++height_block) |
| 59 | { |
| 60 | auto *src_block_row_ptr = src_height_block_ptr; |
| 61 | |
| 62 | for (uintptr_t block_row = 0; block_row < block_size; ++block_row) |
| 63 | { |
| 64 | auto *src_width_block_ptr = src_block_row_ptr; |
| 65 | auto *dst_width_block_ptr = dst_row_ptr; |
| 66 | |
| 67 | for (uintptr_t width_block = 0; width_block < src_shape[1]; ++width_block) |
| 68 | { |
| 69 | // The source pointer is accumulated as: |
| 70 | // |
| 71 | // src_width_block_ptr = |
| 72 | // src + |
| 73 | // batch * src_strides[3] + |
| 74 | // height_block * src_strides[2] + |
| 75 | // width_block * src_strides[1] + |
| 76 | // block_row * (src_shape[0] / block_size) * element_size; |
| 77 | // |
| 78 | // The destination pointer is accumulated as: |
| 79 | // |
| 80 | // dst_width_block_ptr = |
| 81 | // dst + |
| 82 | // batch * dst_strides[3] + |
| 83 | // (height_block * block_size + block_row) * dst_strides[2] + |
| 84 | // width_block * block_size * dst_strides[1]; |
| 85 | |
| 86 | std::memcpy(dst_width_block_ptr, src_width_block_ptr, src_block_row_stride); |
| 87 | |
| 88 | src_width_block_ptr += src_strides[1]; |
| 89 | dst_width_block_ptr += dst_width_block_stride; |
| 90 | } |
| 91 | |
| 92 | src_block_row_ptr += src_block_row_stride; |
| 93 | dst_row_ptr += dst_strides[2]; |
| 94 | } |
| 95 | |
| 96 | src_height_block_ptr += src_strides[2]; |
| 97 | } |
| 98 | |
| 99 | src_batch_ptr += src_strides[3]; |
| 100 | dst_batch_ptr += dst_strides[3]; |
| 101 | } |
| 102 | } |
| 103 | |
| 104 | } // namespace cpu |
| 105 | } // namespace arm_compute |