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Diffstat (limited to 'src/core/NEON/kernels/NECol2ImKernel.h')
| -rw-r--r-- | src/core/NEON/kernels/NECol2ImKernel.h | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/src/core/NEON/kernels/NECol2ImKernel.h b/src/core/NEON/kernels/NECol2ImKernel.h new file mode 100644 index 0000000000..bc6652fd30 --- /dev/null +++ b/src/core/NEON/kernels/NECol2ImKernel.h @@ -0,0 +1,115 @@ +/* + * Copyright (c) 2017-2021 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. + */ +#ifndef ARM_COMPUTE_NECOL2IMKERNEL_H +#define ARM_COMPUTE_NECOL2IMKERNEL_H + +#include "arm_compute/core/Size2D.h" + +#include "src/core/NEON/INEKernel.h" + +namespace arm_compute +{ +class ITensor; + +/** Kernel to perform col2im reshaping. + * + * Rearranges each matrix column into image blocks. It's the inverse operation of @ref cpu::kernels::CpuIm2ColKernel. + * + * For example, a vector of 9 elements can be reshaped to a block(image) of 3x3: + * + * @f[ + * \left( \begin{array}{ccccccccc} + * a0 & a1 & a2 & a3 & a4 & a5 & a6 & a7 & a8 \\ + * \end{array} \right) + * \rightarrow + * \left( \begin{array}{ccc} + * a0 & a1 & a2 \\ + * a3 & a4 & a5 \\ + * a6 & a7 & a8 \\ + * \end{array} \right) + * @f] + */ +class NECol2ImKernel : public INEKernel +{ +public: + const char *name() const override + { + return "NECol2ImKernel"; + } + /** Default constructor */ + NECol2ImKernel(); + /** Prevent instances of this class from being copied (As this class contains pointers) */ + NECol2ImKernel(const NECol2ImKernel &) = delete; + /** Prevent instances of this class from being copied (As this class contains pointers) */ + NECol2ImKernel &operator=(const NECol2ImKernel &) = delete; + /** Allow instances of this class to be moved */ + NECol2ImKernel(NECol2ImKernel &&) = default; + /** Allow instances of this class to be moved */ + NECol2ImKernel &operator=(NECol2ImKernel &&) = default; + /** Default destructor */ + ~NECol2ImKernel() = default; + + /** Set the input and output of the kernel. + * + * @param[in] input The input tensor to convert. Data types supported: All + * @param[out] output The output tensor. 3 lower dimensions represent a single output [width, height, OFM], + * while the rest represent batch of outputs. Data types supported: Same as @p input + * @param[in] convolved_dims Output convolved dimensions. + */ + void configure(const ITensor *input, ITensor *output, const Size2D &convolved_dims); + /** Static function to check if given info will lead to a valid configuration of @ref NECol2ImKernel + * + * @param[in] input The input tensor to convert. Data types supported: All + * @param[in] output The output tensor. 3 lower dimensions represent a single output [width, height, OFM], + * while the rest represent batch of outputs. Data types supported: Same as @p input + * @param[in] convolved_dims Output convolved dimensions. + * + * @return a status + */ + static Status validate(const ITensorInfo *input, const ITensorInfo *output, const Size2D &convolved_dims); + + // Inherited methods overridden: + void run(const Window &window, const ThreadInfo &info) override; + +private: + /** Template function to run the col2im + * + * @param[in] window Region on which to execute the kernel. (Must be a valid region of the window returned by window()). + */ + template <typename T> + void run_col2im(const Window &window); + + /** Common signature for all the specialised col2im functions + * + * @param[in] window Region on which to execute the kernel. + */ + using Col2ImFunctionPtr = void (NECol2ImKernel::*)(const Window &window); + + Col2ImFunctionPtr _func; + const ITensor *_input; + ITensor *_output; + Size2D _convolved_dims; +}; +} // namespace arm_compute +#endif /*ARM_COMPUTE_NECOL2IMKERNEL_H */ |