1 /* 2 * Copyright (c) 2017-2022 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 #ifndef ARM_COMPUTE_CPU_COL2IM_KERNEL_H 25 #define ARM_COMPUTE_CPU_COL2IM_KERNEL_H 26 27 #include "arm_compute/core/Size2D.h" 28 #include "src/core/common/Macros.h" 29 #include "src/cpu/ICpuKernel.h" 30 31 namespace arm_compute 32 { 33 namespace cpu 34 { 35 namespace kernels 36 { 37 /** Kernel to perform col2im reshaping. 38 * 39 * Rearranges each matrix column into image blocks. It's the inverse operation of @ref CpuIm2ColKernel. 40 * 41 * For example, a vector of 9 elements can be reshaped to a block(image) of 3x3: 42 * 43 * @f[ 44 * \left( \begin{array}{ccccccccc} 45 * a0 & a1 & a2 & a3 & a4 & a5 & a6 & a7 & a8 \\ 46 * \end{array} \right) 47 * \rightarrow 48 * \left( \begin{array}{ccc} 49 * a0 & a1 & a2 \\ 50 * a3 & a4 & a5 \\ 51 * a6 & a7 & a8 \\ 52 * \end{array} \right) 53 * @f] 54 */ 55 class CpuCol2ImKernel : public ICpuKernel<CpuCol2ImKernel> 56 { 57 public: 58 /** Default constructor */ 59 CpuCol2ImKernel() = default; 60 ARM_COMPUTE_DISALLOW_COPY_ALLOW_MOVE(CpuCol2ImKernel); 61 /** Set the input and output of the kernel. 62 * 63 * @param[in] src The input tensor info to convert. Data types supported: All 64 * @param[out] dst The output tensor info. 3 lower dimensions represent a single output [width, height, OFM], 65 * while the rest represent batch of outputs. Data types supported: Same as @p input 66 * @param[in] convolved_dims Output convolved dimensions. 67 */ 68 void configure(const ITensorInfo *src, ITensorInfo *dst, const Size2D &convolved_dims); 69 /** Static function to check if given info will lead to a valid configuration 70 * 71 * Similar to CpuCol2ImKernel::configure() 72 * 73 * @return a status 74 */ 75 static Status validate(const ITensorInfo *src, const ITensorInfo *dst, const Size2D &convolved_dims); 76 77 // Inherited methods overridden: 78 void run_op(ITensorPack &tensors, const Window &window, const ThreadInfo &info) override; 79 const char *name() const override; 80 81 private: 82 Size2D _convolved_dims{}; 83 }; 84 } // namespace kernels 85 } // namespace cpu 86 } // namespace arm_compute 87 #endif /*ARM_COMPUTE_CPU_COL2IM_KERNEL_H */ 88