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Diffstat (limited to 'src/core/CL/cl_kernels/nchw/reorg_layer.cl')
| -rw-r--r-- | src/core/CL/cl_kernels/nchw/reorg_layer.cl | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/src/core/CL/cl_kernels/nchw/reorg_layer.cl b/src/core/CL/cl_kernels/nchw/reorg_layer.cl new file mode 100644 index 0000000000..f66b17c1a6 --- /dev/null +++ b/src/core/CL/cl_kernels/nchw/reorg_layer.cl @@ -0,0 +1,75 @@ +/* + * Copyright (c) 2018-2021 Arm Limited. + * + * SPDX-License-Identifier: MIT + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include "helpers.h" + +#if defined(DATA_TYPE) && defined(SRC_DEPTH) && defined(STRIDE) + +#define CALCULATE_SRC_COORDINATES(xo, yo, zo, xi, yi, zi) \ + ({ \ + int offset = zo / (int)SRC_DEPTH; \ + xi = xo * (int)STRIDE + offset % (int)STRIDE; \ + yi = yo * (int)STRIDE + offset / (int)STRIDE; \ + zi = zo % SRC_DEPTH; \ + }) + +/** Performs a reorganization layer of input tensor to the output tensor when the data layout is NCHW + * + * @note The data type must be passed at compile time using -DDATA_TYPE: e.g. -DDATA_TYPE=float + * @note The depth of the input tensor must be passed at compile time using -DSRC_DEPTH: e.g. -DSRC_DEPTH=64 + * @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 + * + * @param[in] src_ptr Pointer to the source tensor. Supported data types: All + * @param[in] src_stride_x Stride of the source tensor in X dimension (in bytes) + * @param[in] src_step_x src_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] src_stride_y Stride of the source tensor in Y dimension (in bytes) + * @param[in] src_step_y src_stride_y * number of elements along Y processed per workitem(in bytes) + * @param[in] src_stride_z Stride of the source tensor in Z dimension (in bytes) + * @param[in] src_step_z src_stride_z * number of elements along Z processed per workitem(in bytes) + * @param[in] src_offset_first_element_in_bytes The offset of the first element in the source tensor + * @param[out] dst_ptr Pointer to the destination tensor. Supported data types: same as @p src_ptr + * @param[in] dst_stride_x Stride of the destination tensor in X dimension (in bytes) + * @param[in] dst_step_x dst_stride_x * number of elements along X processed per workitem(in bytes) + * @param[in] dst_stride_y Stride of the destination tensor in Y dimension (in bytes) + * @param[in] dst_step_y dst_stride_y * number of elements along Y processed per workitem(in bytes) + * @param[in] dst_stride_z Stride of the source tensor in Z dimension (in bytes) + * @param[in] dst_step_z dst_stride_z * number of elements along Z processed per workitem(in bytes) + * @param[in] dst_offset_first_element_in_bytes The offset of the first element in the destination tensor + */ +__kernel void reorg_layer_nchw( + TENSOR3D_DECLARATION(src), + TENSOR3D_DECLARATION(dst)) +{ + Tensor3D out = CONVERT_TO_TENSOR3D_STRUCT(dst); + + int xo = get_global_id(0); + int yo = get_global_id(1); + int zo = get_global_id(2); + int xi, yi, zi; + + CALCULATE_SRC_COORDINATES(xo, yo, zo, xi, yi, zi); + + int src_offset = xi * sizeof(DATA_TYPE) + yi * src_stride_y + zi * src_stride_z; + *((__global DATA_TYPE *)out.ptr) = *((__global DATA_TYPE *)(src_ptr + src_offset_first_element_in_bytes + src_offset)); +} +#endif // // defined(DATA_TYPE) && defined(SRC_DEPTH) && defined(STRIDE)
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