| Giorgio Arena | 657bdb3 | 2018-04-26 18:52:01 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2018 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 | #include "helpers.h" |
| 25 | |
| 26 | #if defined(DATA_TYPE) && defined(FACTOR_1) && defined(FACTOR_2) |
| 27 | /** Perform a NCHW -> NHWC or NHWC -> NCHW conversion for Fully Connected 2D weights. |
| 28 | * |
| 29 | * For NCHW -> NHWC, FACTOR_1 will be equal to the product of the first two dimensions of FullyConnectedLayer's input and FACTOR_2 will represent the number of channels of that tensor. |
| 30 | * For NHWC -> NCHW, FACTOR_1 and FACTOR_2 will hold the same values, but swapped. |
| 31 | * |
| 32 | * @attention Data type can be passed using the -DDATA_TYPE compile flag, e.g. -DDATA_TYPE=float |
| 33 | * @attention Original input tensor width*height and depth should be given as a preprocessor argument using -DFACTOR_1=size and -DFACTOR_2=size for NCHW and vice versa for NHWC. e.g. -DFACTOR_1=256 and -DFACTOR_2=128 |
| 34 | * |
| Vidhya Sudhan Loganathan | f4cb81b | 2018-07-04 15:13:14 +0100 | [diff] [blame] | 35 | * @param[in] src_ptr Pointer to the source image. Supported data types: U8, S8, QASYMM8, U16, S16, U32, S32, F16, F32 |
| Giorgio Arena | 657bdb3 | 2018-04-26 18:52:01 +0100 | [diff] [blame] | 36 | * @param[in] src_stride_x Stride of the source image in X dimension (in bytes) |
| 37 | * @param[in] src_step_x src_stride_x * number of elements along X processed per workitem(in bytes) |
| 38 | * @param[in] src_stride_y Stride of the source image in Y dimension (in bytes) |
| 39 | * @param[in] src_step_y src_stride_y * number of elements along Y processed per workitem(in bytes) |
| 40 | * @param[in] src_offset_first_element_in_bytes The offset of the first element in the source image |
| 41 | * @param[out] dst_ptr Pointer to the destination image. Supported data types: same as @p src_ptr |
| 42 | * @param[in] dst_stride_x Stride of the destination image in X dimension (in bytes) |
| 43 | * @param[in] dst_step_x dst_stride_x * number of elements along X processed per workitem(in bytes) |
| 44 | * @param[in] dst_stride_y Stride of the destination image in Y dimension (in bytes) |
| 45 | * @param[in] dst_step_y dst_stride_y * number of elements along Y processed per workitem(in bytes) |
| 46 | * @param[in] dst_offset_first_element_in_bytes The offset of the first element in the destination image |
| 47 | */ |
| 48 | __kernel void convert_fc_weights( |
| 49 | IMAGE_DECLARATION(src), |
| 50 | IMAGE_DECLARATION(dst)) |
| 51 | { |
| 52 | Image src = CONVERT_TO_IMAGE_STRUCT(src); |
| 53 | |
| 54 | __global uchar *dst_addr = dst_ptr + dst_offset_first_element_in_bytes + get_global_id(0) * dst_stride_x + (get_global_id(1) % FACTOR_1 * FACTOR_2 + get_global_id(1) / FACTOR_1) * dst_stride_y; |
| 55 | |
| 56 | *((__global DATA_TYPE *)dst_addr) = *((__global DATA_TYPE *)src.ptr); |
| 57 | } |
| 58 | #endif // defined(DATA_TYPE) && defined(FACTOR_1) && defined(FACTOR_2) |