Gian Marco Iodice | 215b4ea | 2018-06-28 16:29:29 +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 | |
Gian Marco Iodice | a7b54f4 | 2018-11-12 15:42:17 +0000 | [diff] [blame] | 26 | #if defined(DATA_TYPE) && defined(SRC_WIDTH) && defined(SRC_HEIGHT) && defined(SRC_DEPTH) |
Gian Marco Iodice | 215b4ea | 2018-06-28 16:29:29 +0100 | [diff] [blame] | 27 | |
| 28 | /** This opencl kernel flattens the first 3 dimensions of the input tensor |
| 29 | * |
| 30 | * @note Datatype should be given as a preprocessor argument using -DDATA_TYPE=type. e.g. -DDATA_TYPE=float |
Gian Marco Iodice | a7b54f4 | 2018-11-12 15:42:17 +0000 | [diff] [blame] | 31 | * @note The width, height and depth of the input tensor must be passed at compile time using -DSRC_WIDTH, -DSRC_HEIGHT and -DSRC_DEPTH. e.g. -DSRC_WIDTH=24, -DSRC_HEIGHT=24, -DSRC_DEPTH=16 |
| 32 | * @note If the output has 3 dimensions, the 2nd dimension of the output tensor must be passed at compile time using -DDST_DIM1. e.g -DDST_DIM1=3 |
Gian Marco Iodice | 215b4ea | 2018-06-28 16:29:29 +0100 | [diff] [blame] | 33 | * |
| 34 | * @param[in] src_ptr Pointer to the source tensor. Supported data types: U8/S8/QASYMM8/U16/S16/F16/U32/S32/F32 |
| 35 | * @param[in] src_stride_x Stride of the source tensor in X dimension (in bytes) |
| 36 | * @param[in] src_step_x src_stride_x * number of elements along X processed per workitem(in bytes) |
| 37 | * @param[in] src_stride_y Stride of the source tensor in Y dimension (in bytes) |
| 38 | * @param[in] src_step_y src_stride_y * number of elements along Y processed per workitem(in bytes) |
| 39 | * @param[in] src_stride_z Stride of the source tensor in Z dimension (in bytes) |
| 40 | * @param[in] src_step_z src_stride_z * number of elements along Y processed per workitem(in bytes) |
Gian Marco Iodice | a7b54f4 | 2018-11-12 15:42:17 +0000 | [diff] [blame] | 41 | * @param[in] src_stride_w Stride of the source tensor in W dimension (in bytes) |
| 42 | * @param[in] src_step_w src_stride_w * number of elements along Y processed per workitem(in bytes) |
Gian Marco Iodice | 215b4ea | 2018-06-28 16:29:29 +0100 | [diff] [blame] | 43 | * @param[in] src_offset_first_element_in_bytes The offset of the first element in the source tensor |
| 44 | * @param[out] dst_ptr Pointer to the destination tensor. Same as @p src_ptr |
| 45 | * @param[in] dst_stride_x Stride of the destination tensor in X dimension (in bytes) |
| 46 | * @param[in] dst_step_x dst_stride_x * number of elements along X processed per workitem(in bytes) |
Gian Marco Iodice | a7b54f4 | 2018-11-12 15:42:17 +0000 | [diff] [blame] | 47 | * @param[in] dst_stride_y Stride of the destination tensor in Y dimension (in bytes) |
| 48 | * @param[in] dst_step_y dst_stride_y * number of elements along Y processed per workitem(in bytes) |
| 49 | * @param[in] dst_stride_z Stride of the destination tensor in Z dimension (in bytes) |
| 50 | * @param[in] dst_step_z dst_stride_z * number of elements along Z processed per workitem(in bytes) |
Gian Marco Iodice | 215b4ea | 2018-06-28 16:29:29 +0100 | [diff] [blame] | 51 | * @param[in] dst_offset_first_element_in_bytes The offset of the first element in the destination tensor |
| 52 | */ |
| 53 | __kernel void flatten( |
Gian Marco Iodice | a7b54f4 | 2018-11-12 15:42:17 +0000 | [diff] [blame] | 54 | TENSOR4D_DECLARATION(src), |
| 55 | TENSOR3D_DECLARATION(dst)) |
Gian Marco Iodice | 215b4ea | 2018-06-28 16:29:29 +0100 | [diff] [blame] | 56 | { |
Gian Marco Iodice | a7b54f4 | 2018-11-12 15:42:17 +0000 | [diff] [blame] | 57 | Tensor4D src = CONVERT_TO_TENSOR4D_STRUCT(src, SRC_DEPTH); |
Gian Marco Iodice | 215b4ea | 2018-06-28 16:29:29 +0100 | [diff] [blame] | 58 | |
Gian Marco Iodice | a7b54f4 | 2018-11-12 15:42:17 +0000 | [diff] [blame] | 59 | uint c = get_global_id(2) % SRC_DEPTH; // input feature map |
| 60 | uint b0 = get_global_id(2) / SRC_DEPTH; // batch id |
| 61 | uint b1 = 0; |
| 62 | |
| 63 | #if defined(DST_DIM1) |
| 64 | uint b_tmp = b0; |
| 65 | b0 = b_tmp % DST_DIM1; // batch id0 |
| 66 | b1 = b_tmp / DST_DIM1; // batch id1 |
| 67 | #endif // defined(DST_DIM1) |
| 68 | |
| 69 | __global uchar *output_ptr = dst_ptr + dst_offset_first_element_in_bytes + |
| 70 | (get_global_id(0) + get_global_id(1) * (uint)SRC_WIDTH + c * (uint)(SRC_WIDTH * SRC_HEIGHT)) * sizeof(DATA_TYPE) + |
| 71 | b0 * dst_stride_y + |
| 72 | b1 * dst_stride_z; |
Gian Marco Iodice | 215b4ea | 2018-06-28 16:29:29 +0100 | [diff] [blame] | 73 | |
| 74 | *((__global DATA_TYPE *)output_ptr) = *((__global DATA_TYPE *)src.ptr); |
| 75 | } |
| 76 | #endif // defined(DATA_TYPE) && defined(SRC_WIDTH) && defined(SRC_HEIGHT) |