// ----------------------------------------------------------------------------
// -                        Open3D: www.open3d.org                            -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2023 www.open3d.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
//
#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