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Gian Marco Iodice477531c2018-08-21 17:53:38 +01001/*
Michele Di Giorgiof6f78762020-07-06 11:27:21 +01002 * Copyright (c) 2018-2020 Arm Limited.
Gian Marco Iodice477531c2018-08-21 17:53:38 +01003 *
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(SRC_DEPTH) && defined(STRIDE)
27
28#define CALCULATE_SRC_COORDINATES(xo, yo, zo, xi, yi, zi) \
29 ({ \
30 int offset = zo / (int)SRC_DEPTH; \
31 xi = xo * (int)STRIDE + offset % (int)STRIDE; \
32 yi = yo * (int)STRIDE + offset / (int)STRIDE; \
33 zi = zo % SRC_DEPTH; \
34 })
35
36/** Performs a reorganization layer of input tensor to the output tensor when the data layout is NCHW
37 *
38 * @note The data type must be passed at compile time using -DDATA_TYPE: e.g. -DDATA_TYPE=float
39 * @note The depth of the input tensor must be passed at compile time using -DSRC_DEPTH: e.g. -DSRC_DEPTH=64
40 * @note The distance between 2 consecutive pixels along the x and y direction must be passed at compile time using -DSTRIDE: e.g. -DSTRIDE=2
41 *
Michele Di Giorgiof6f78762020-07-06 11:27:21 +010042 * @param[in] src_ptr Pointer to the source tensor. Supported data types: All
Gian Marco Iodice477531c2018-08-21 17:53:38 +010043 * @param[in] src_stride_x Stride of the source tensor in X dimension (in bytes)
44 * @param[in] src_step_x src_stride_x * number of elements along X processed per workitem(in bytes)
45 * @param[in] src_stride_y Stride of the source tensor in Y dimension (in bytes)
46 * @param[in] src_step_y src_stride_y * number of elements along Y processed per workitem(in bytes)
47 * @param[in] src_stride_z Stride of the source tensor in Z dimension (in bytes)
48 * @param[in] src_step_z src_stride_z * number of elements along Z processed per workitem(in bytes)
49 * @param[in] src_offset_first_element_in_bytes The offset of the first element in the source tensor
50 * @param[out] dst_ptr Pointer to the destination tensor. Supported data types: same as @p src_ptr
51 * @param[in] dst_stride_x Stride of the destination tensor in X dimension (in bytes)
52 * @param[in] dst_step_x dst_stride_x * number of elements along X processed per workitem(in bytes)
53 * @param[in] dst_stride_y Stride of the destination tensor in Y dimension (in bytes)
54 * @param[in] dst_step_y dst_stride_y * number of elements along Y processed per workitem(in bytes)
55 * @param[in] dst_stride_z Stride of the source tensor in Z dimension (in bytes)
56 * @param[in] dst_step_z dst_stride_z * number of elements along Z processed per workitem(in bytes)
57 * @param[in] dst_offset_first_element_in_bytes The offset of the first element in the destination tensor
58 */
59__kernel void reorg_layer_nchw(
60 TENSOR3D_DECLARATION(src),
61 TENSOR3D_DECLARATION(dst))
62{
63 Tensor3D out = CONVERT_TO_TENSOR3D_STRUCT(dst);
64
65 int xo = get_global_id(0);
66 int yo = get_global_id(1);
67 int zo = get_global_id(2);
68 int xi, yi, zi;
69
70 CALCULATE_SRC_COORDINATES(xo, yo, zo, xi, yi, zi);
71
72 int src_offset = xi * sizeof(DATA_TYPE) + yi * src_stride_y + zi * src_stride_z;
73 *((__global DATA_TYPE *)out.ptr) = *((__global DATA_TYPE *)(src_ptr + src_offset_first_element_in_bytes + src_offset));
74}
75
76/** Performs a reorganization layer of input tensor to the output tensor when the data layout is NHWC
77 *
78 * @note The data type must be passed at compile time using -DDATA_TYPE: e.g. -DDATA_TYPE=float
79 * @note The depth of the input tensor must be passed at compile time using -DSRC_DEPTH: e.g. -DSRC_DEPTH=64
80 * @note The distance between 2 consecutive pixels along the x and y direction must be passed at compile time using -DSTRIDE: e.g. -DSTRIDE=2
81 *
Michele Di Giorgiof6f78762020-07-06 11:27:21 +010082 * @param[in] src_ptr Pointer to the source tensor. Supported data types: All
Gian Marco Iodice477531c2018-08-21 17:53:38 +010083 * @param[in] src_stride_x Stride of the source tensor in X dimension (in bytes)
84 * @param[in] src_step_x src_stride_x * number of elements along X processed per workitem(in bytes)
85 * @param[in] src_stride_y Stride of the source tensor in Y dimension (in bytes)
86 * @param[in] src_step_y src_stride_y * number of elements along Y processed per workitem(in bytes)
87 * @param[in] src_stride_z Stride of the source tensor in Z dimension (in bytes)
88 * @param[in] src_step_z src_stride_z * number of elements along Z processed per workitem(in bytes)
89 * @param[in] src_offset_first_element_in_bytes The offset of the first element in the source tensor
90 * @param[out] dst_ptr Pointer to the destination tensor. Supported data types: same as @p src_ptr
91 * @param[in] dst_stride_x Stride of the destination tensor in X dimension (in bytes)
92 * @param[in] dst_step_x dst_stride_x * number of elements along X processed per workitem(in bytes)
93 * @param[in] dst_stride_y Stride of the destination tensor in Y dimension (in bytes)
94 * @param[in] dst_step_y dst_stride_y * number of elements along Y processed per workitem(in bytes)
95 * @param[in] dst_stride_z Stride of the source tensor in Z dimension (in bytes)
96 * @param[in] dst_step_z dst_stride_z * number of elements along Z processed per workitem(in bytes)
97 * @param[in] dst_offset_first_element_in_bytes The offset of the first element in the destination tensor
98 */
99__kernel void reorg_layer_nhwc(
100 TENSOR3D_DECLARATION(src),
101 TENSOR3D_DECLARATION(dst))
102{
103 Tensor3D out = CONVERT_TO_TENSOR3D_STRUCT(dst);
104
105 int xo = get_global_id(1);
106 int yo = get_global_id(2);
107 int zo = get_global_id(0);
108 int xi, yi, zi;
109
110 CALCULATE_SRC_COORDINATES(xo, yo, zo, xi, yi, zi);
111
112 int src_offset = zi * sizeof(DATA_TYPE) + xi * src_stride_y + yi * src_stride_z;
113
114 *((__global DATA_TYPE *)out.ptr) = *((__global DATA_TYPE *)(src_ptr + src_offset_first_element_in_bytes + src_offset));
115}
116#endif // // defined(DATA_TYPE) && defined(SRC_DEPTH) && defined(STRIDE)