// ----------------------------------------------------------------------------
// -                        Open3D: www.open3d.org                            -
// ----------------------------------------------------------------------------
// The MIT License (MIT)
//
// Copyright (c) 2018-2021 www.open3d.org
//
// 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:
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// The above copyright notice and this permission notice shall be included in
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// IN THE SOFTWARE.
// ----------------------------------------------------------------------------
//
#pragma once

#include <torch/script.h>

#include <vector>

template <class TFeat, class TOut, class TIndex, class TKernelIndex>
void SparseConvTransposeCPU(const torch::Tensor& filters,
                            const torch::Tensor& out_importance,
                            const torch::Tensor& inp_features,
                            const torch::Tensor& inp_neighbors_importance_sum,
                            const torch::Tensor& inp_neighbors_row_splits,
                            const torch::Tensor& neighbors_index,
                            const torch::Tensor& neighbors_kernel_index,
                            const torch::Tensor& neighbors_importance,
                            const torch::Tensor& neighbors_row_splits,
                            const bool normalize,
                            const int64_t max_temp_mem_MB,
                            torch::Tensor& out_features);

#ifdef BUILD_CUDA_MODULE
template <class TFeat, class TOut, class TIndex, class TKernelIndex>
void SparseConvTransposeCUDA(const torch::Tensor& filters,
                             const torch::Tensor& out_importance,
                             const torch::Tensor& inp_features,
                             const torch::Tensor& inp_neighbors_importance_sum,
                             const torch::Tensor& inp_neighbors_row_splits,
                             const torch::Tensor& neighbors_index,
                             const torch::Tensor& neighbors_kernel_index,
                             const torch::Tensor& neighbors_importance,
                             const torch::Tensor& neighbors_row_splits,
                             const bool normalize,
                             const int64_t max_temp_mem_MB,
                             torch::Tensor& out_features);
#endif
