/*
All modification made by Intel Corporation: © 2016 Intel Corporation

All contributions by the University of California:
Copyright (c) 2014, 2015, The Regents of the University of California (Regents)
All rights reserved.

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Copyright (c) 2014, 2015, the respective contributors
All rights reserved.
For the list of contributors go to https://github.com/BVLC/caffe/blob/master/CONTRIBUTORS.md


Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

    * Redistributions of source code must retain the above copyright notice,
      this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above copyright
      notice, this list of conditions and the following disclaimer in the
      documentation and/or other materials provided with the distribution.
    * Neither the name of Intel Corporation nor the names of its contributors
      may be used to endorse or promote products derived from this software
      without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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*/

#ifndef _CAFFE_UTIL_IM2COL_HPP_
#define _CAFFE_UTIL_IM2COL_HPP_

namespace caffe {

template <typename Dtype>
void im2col_nd_cpu(const Dtype* data_im, const int num_spatial_axes,
    const int* im_shape, const int* col_shape,
    const int* kernel_shape, const int* pad, const int* stride,
    const int* dilation, Dtype* data_col);

template <typename Dtype>
void im2col_cpu(const Dtype* data_im, const int channels,
    const int height, const int width, const int kernel_h, const int kernel_w,
    const int pad_h, const int pad_w, const int stride_h,
    const int stride_w, const int dilation_h, const int dilation_w,
    Dtype* data_col);

template <typename Dtype>
void im3d2col_cpu(const Dtype* data_im, const int channels,
    const int depth, const int height, const int width, const int kernel_d, const int kernel_h, const int kernel_w,
    const int pad_d, const int pad_h, const int pad_w, const int stride_d, const int stride_h,
    const int stride_w, const int dilation_d, const int dilation_h, const int dilation_w,
    Dtype* data_col);

template <typename Dtype>
void col2im_nd_cpu(const Dtype* data_col, const int num_spatial_axes,
    const int* im_shape, const int* col_shape,
    const int* kernel_shape, const int* pad, const int* stride,
    const int* dilation, Dtype* data_im);

template <typename Dtype>
void col2im_cpu(const Dtype* data_col, const int channels,
    const int height, const int width, const int kernel_h, const int kernel_w,
    const int pad_h, const int pad_w, const int stride_h,
    const int stride_w, const int dilation_h, const int dilation_w,
    Dtype* data_im);

template <typename Dtype>
void col2im3d_cpu(const Dtype* data_col, const int channels,
    const int depth, const int height, const int width, const int kernel_d, const int kernel_h, const int kernel_w,
    const int pad_d, const int pad_h, const int pad_w, const int stride_d, const int stride_h,
    const int stride_w, const int dilation_d, const int dilation_h, const int dilation_w,
    Dtype* data_im);

template <typename Dtype>
void im2col_nd_gpu(const Dtype* data_im, const int num_spatial_axes,
    const int col_size, const int* im_shape, const int* col_shape,
    const int* kernel_shape, const int* pad, const int* stride,
    const int* dilation, Dtype* data_col);

template <typename Dtype>
void im2col_gpu(const Dtype* data_im, const int channels,
    const int height, const int width, const int kernel_h, const int kernel_w,
    const int pad_h, const int pad_w, const int stride_h,
    const int stride_w, const int dilation_h, const int dilation_w,
    Dtype* data_col);

template <typename Dtype>
void col2im_nd_gpu(const Dtype* data_col, const int num_spatial_axes,
    const int im_size, const int* im_shape, const int* col_shape,
    const int* kernel_shape, const int* pad, const int* stride,
    const int* dilation, Dtype* data_im);

template <typename Dtype>
void col2im_gpu(const Dtype* data_col, const int channels,
    const int height, const int width, const int kernel_h, const int kernel_w,
    const int pad_h, const int pad_w, const int stride_h,
    const int stride_w, const int dilation_h, const int dilation_w,
    Dtype* data_im);

}  // namespace caffe

#endif  // CAFFE_UTIL_IM2COL_HPP_
