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Diffstat (limited to 'src/core/CL/kernels/CLIm2ColKernel.h')
| -rw-r--r-- | src/core/CL/kernels/CLIm2ColKernel.h | 136 |
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diff --git a/src/core/CL/kernels/CLIm2ColKernel.h b/src/core/CL/kernels/CLIm2ColKernel.h new file mode 100644 index 0000000000..2920c7d138 --- /dev/null +++ b/src/core/CL/kernels/CLIm2ColKernel.h @@ -0,0 +1,136 @@ +/* + * Copyright (c) 2017-2020 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. + */ +#ifndef ARM_COMPUTE_CLIM2COLKERNEL_H +#define ARM_COMPUTE_CLIM2COLKERNEL_H + +#include "arm_compute/core/Size2D.h" +#include "src/core/CL/ICLKernel.h" + +namespace arm_compute +{ +class ICLTensor; + +/** Interface for the im2col reshape kernel. + * + * Rearranges image blocks into columns. It is used to strip out each convolution block to a single column. + * It is used to transform a convolution to a plain matrix multiplication. + * + * For example taking into account the image below and assuming 3x3 image blocks with stride of 1 we have: + * @f[ + * \left( \begin{array}{cccc} + * a00 & a01 & a02 & a03 \\ + * a10 & a11 & a12 & a13 \\ + * a20 & a21 & a22 & a23 \\ + * a30 & a31 & a32 & a33 \\ + * \end{array} \right) + * = + * \left( \begin{array}{ccccccccc} + * a00 & a01 & a02 & a10 & a11 & a12 & a20 & a21 & a22 \\ + * a01 & a02 & a03 & a11 & a12 & a13 & a21 & a22 & a23 \\ + * a10 & a11 & a12 & a20 & a21 & a22 & a30 & a31 & a32 \\ + * a11 & a12 & a13 & a21 & a22 & a23 & a31 & a32 & a33 \\ + * \end{array} \right) + * @f] + */ +class CLIm2ColKernel : public ICLKernel +{ +public: + /** Default constructor */ + CLIm2ColKernel(); + /** Prevent instances of this class from being copied (As this class contains pointers) */ + CLIm2ColKernel(const CLIm2ColKernel &) = delete; + /** Prevent instances of this class from being copied (As this class contains pointers) */ + CLIm2ColKernel &operator=(const CLIm2ColKernel &) = delete; + /** Allow instances of this class to be moved */ + CLIm2ColKernel(CLIm2ColKernel &&) = default; + /** Allow instances of this class to be moved */ + CLIm2ColKernel &operator=(CLIm2ColKernel &&) = default; + /** Set the input and output of the kernel. + * + * @param[in] input The input tensor to convert. 3 lower dimensions represent a single input [width, height, IFM], + * while every optional dimension from 4 and above represent a batch of inputs. Data types supported: QASYMM8/QASYMM8_SIGNED/F16/F32 + * @param[out] output The output tensor. First 2 lower dimensions represent a transform of each 3D input, + * while every dimension above represents a batch. Data types supported: Same as @p input + * @param[in] kernel_dims The kernel dimensions (width and height). + * @param[in] conv_info Contains padding and stride information described in @ref PadStrideInfo. + * @param[in] has_bias In case biases are provided expands the matrix with 1. + * This is valid only for non-quantized inputs. + * @param[in] dilation (Optional) Dilation, in elements, across x and y. Defaults to (1, 1). + * @param[in] num_groups (Optional) Number of groups when performing a grouped convolution. + * Number of groups other than 1 is only supported for NCHW data layout. + * Number of groups should be multiple to the number of channels. + */ + void configure(const ICLTensor *input, ICLTensor *output, const Size2D &kernel_dims, const PadStrideInfo &conv_info, bool has_bias, const Size2D &dilation = Size2D(1U, 1U), + unsigned int num_groups = 1); + /** Set the input and output of the kernel. + * + * @param[in] compile_context The compile context to be used. + * @param[in] input The input tensor to convert. 3 lower dimensions represent a single input [width, height, IFM], + * while every optional dimension from 4 and above represent a batch of inputs. Data types supported: QASYMM8/QASYMM8_SIGNED/F16/F32 + * @param[out] output The output tensor. First 2 lower dimensions represent a transform of each 3D input, + * while every dimension above represents a batch. Data types supported: Same as @p input + * @param[in] kernel_dims The kernel dimensions (width and height). + * @param[in] conv_info Contains padding and stride information described in @ref PadStrideInfo. + * @param[in] has_bias In case biases are provided expands the matrix with 1. + * @param[in] dilation (Optional) Dilation, in elements, across x and y. Defaults to (1, 1). + * @param[in] num_groups (Optional) Number of groups when performing a grouped convolution. num_groups != 1 is only supported for NCHW data layout + */ + void configure(const CLCompileContext &compile_context, const ICLTensor *input, ICLTensor *output, const Size2D &kernel_dims, const PadStrideInfo &conv_info, bool has_bias, + const Size2D &dilation = Size2D(1U, 1U), + unsigned int num_groups = 1); + /** Static function to check if given info will lead to a valid configuration of @ref CLIm2ColKernel + * + * @param[in] input The input tensor to convert. 3 lower dimensions represent a single input [width, height, IFM], + * while every optional dimension from 4 and above represent a batch of inputs. Data types supported: QASYMM8/QASYMM8_SIGNED/F16/F32 + * @param[in] output The output tensor. First 2 lower dimensions represent a transform of each 3D input, + * while every dimension above represents a batch. Data types supported: Same as @p input + * @param[in] kernel_dims The kernel dimensions (width and height). + * @param[in] conv_info Contains padding and stride information described in @ref PadStrideInfo. + * @param[in] has_bias In case biases are provided expands the matrix with 1. + * This is valid only for non-quantized inputs. + * @param[in] dilation (Optional) Dilation, in elements, across x and y. Defaults to (1, 1). + * @param[in] num_groups (Optional) Number of groups when performing a grouped convolution. + * Number of groups other than 1 is only supported for NCHW data layout. + * Number of groups should be multiple to the number of channels. + * + * @return a status + */ + static Status validate(const ITensorInfo *input, const ITensorInfo *output, const Size2D &kernel_dims, const PadStrideInfo &conv_info, bool has_bias, const Size2D &dilation = Size2D(1U, 1U), + unsigned int num_groups = 1); + + // Inherited methods overridden: + void run(const Window &window, cl::CommandQueue &queue) override; + +public: + const ICLTensor *_input; + ICLTensor *_output; + DataLayout _data_layout; + std::pair<unsigned int, unsigned int> _convolved_dims; + unsigned int _num_elems_processed_per_iteration; + Size2D _kernel_dims; + PadStrideInfo _conv_info; + unsigned int _num_groups; +}; +} // namespace arm_compute +#endif /*ARM_COMPUTE_CLIM2COLKERNEL_H */ |