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/*
* Copyright (c) 2017-2018 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_NEGEMMWINOGRADLAYERKERNEL_H__
#define __ARM_COMPUTE_NEGEMMWINOGRADLAYERKERNEL_H__
#include "arm_compute/core/NEON/INEKernel.h"
#include "arm_compute/core/NEON/kernels/winograd/convolution.hpp"
#include "arm_compute/core/NEON/kernels/winograd/tensor.hpp"
namespace arm_compute
{
class ITensor;
class NEWinogradLayerKernel;
class Winograd3x3F32 final
{
public:
/** Create a new Winograd convolution layer.
*
* @param[in] n_batches Number of batches in the input and output tensors.
* @param[in] n_input_channels Number of feature maps in a batch of the input tensor.
* @param[in] n_input_rows Number of rows in a feature map of the input tensor.
* @param[in] n_input_cols Number of columns in a feature map of the input tensor.
* @param[in] n_output_channels Number of feature maps in the output tensor.
* @param[in] same_padding Use "SAME" padding, otherwise use "VALID".
* @param[in] weights Pointer to weight tensor in spatial domain. Must be ordered as "Height x Rows x Input Feature Maps x Output Feature Maps.
* @param[out] weights_storage Pointer to storage for weight tensor in the Winograd domain. Must be at least the size returned by `get_weight_storage_size
* @param[in] input Pointer to NHWC ordered input tensor, in the spatial domain.
* @param[out] winograd_input Pointer to working space for the input tensor in the Winograd domain. Must be at least the size returned by `get_input_storage_size`.
* @param[out] output Pointer to NHWC ordered output tensor, in the spatial domain.
* @param[out] winograd_output Pointer to working space for the output tensor in the Winograd domain. Must be at least the size returned by `get_output_storage_size`.
*/
friend class NEWinogradLayerKernel;
Winograd3x3F32(
const int n_batches,
const int n_input_channels,
const int n_input_rows,
const int n_input_cols,
const int n_output_channels,
const bool same_padding,
const float *const weights,
float *const weights_storage,
const float *const input,
float *const winograd_input,
float *const output,
float *const winograd_output);
~Winograd3x3F32();
void transform_weights();
void transform_input();
void transform_output();
private:
class Private;
std::unique_ptr<Private> _pimpl;
};
class NEWinogradLayerKernel : public INEKernel
{
public:
/** Constructor */
NEWinogradLayerKernel();
/** Prevent instances of this class from being copied (As this class contains pointers) */
NEWinogradLayerKernel(const NEWinogradLayerKernel &) = delete;
/** Prevent instances of this class from being copied (As this class contains pointers) */
NEWinogradLayerKernel &operator=(const NEWinogradLayerKernel &) = delete;
/** Allow instances of this class to be moved */
NEWinogradLayerKernel(NEWinogradLayerKernel &&) = default;
/** Allow instances of this class to be moved */
NEWinogradLayerKernel &operator=(NEWinogradLayerKernel &&) = default;
virtual ~NEWinogradLayerKernel() = default;
/** Initialise the kernel
*
* @param[in] convolver A pointer to the winograd convolver, this object must have been configured and is ready to execute 16 GEMMS .
*/
void configure(Winograd3x3F32 *convolver);
// Inherited methods overridden:
void run(const Window &window, const ThreadInfo &info) override;
/** Determine how much memory (in units of TIn) to allocate for the
* transformed weights.
*
* @param[in] n_output_channels Number of output feature maps.
* @param[in] n_input_channels Number of input feature maps.
*/
static unsigned int get_weight_storage_size(
const int n_output_channels,
const int n_input_channels);
/** Determine how much memory (in units of TIn) to allocate for the
* transformed input.
*
* @param[in] n_batches Number of batches in the input tensor.
* @param[in] n_channels Number of feature maps in the input tensor.
* @param[in] n_rows Number of rows in each feature map.
* @param[in] n_cols Number of columns in each feature map.
* @param[in] same_padding Use "SAME" padding, otherwise use "VALID".
*/
static unsigned int get_input_storage_size(
const int n_batches,
const int n_channels,
const int n_rows,
const int n_cols,
const bool same_padding);
/** Determine how much memory (in units of TOut) to allocate for the
* (Winograd domain) output.
*
* @param[in] n_batches Number of batches in the output tensor.
* @param[in] n_rows Number of rows in each feature map of the input tensor.
* @param[in] n_cols Number of columns in each feature map of the input tensor.
* @param[in] n_output_channels Number of feature maps in the output tensor.
* @param[in] same_padding Use "SAME" padding, otherwise use "VALID".
*/
static unsigned int get_output_storage_size(
const int n_batches,
const int n_rows,
const int n_cols,
const int n_output_channels,
const bool same_padding);
protected:
Winograd3x3F32 *_convolver;
};
} // namespace arm_compute
#endif /*__ARM_COMPUTE_NEGEMMWINOGRADLAYERKERNEL_H__*/
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