TrilinearDevoxelizeKernel.h

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// -                        Open3D: www.open3d.org                            -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2026 www.open3d.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
//
//    Based on PVCNN Library (MIT License):
//    https://github.com/mit-han-lab/pvcnn
//
// Copyright (c) 2018 Zhijian Liu, Haotian Tang, Yujun Lin
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
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#pragma once
 
void TrilinearDevoxelize(int b,
                         int c,
                         int n,
                         int r,
                         int r2,
                         int r3,
                         bool is_training,
                         const float *coords,
                         const float *feat,
                         int *inds,
                         float *wgts,
                         float *outs);
 
void TrilinearDevoxelizeGrad(int b,
                             int c,
                             int n,
                             int r3,
                             const int *inds,
                             const float *wgts,
                             const float *grad_y,
                             float *grad_x);
 
#ifdef BUILD_SYCL_MODULE
void TrilinearDevoxelizeSYCLLauncher(int b,
                                     int c,
                                     int n,
                                     int r,
                                     int r2,
                                     int r3,
                                     bool is_training,
                                     const float *coords,
                                     const float *feat,
                                     int *inds,
                                     float *wgts,
                                     float *outs);
 
void TrilinearDevoxelizeGradSYCLLauncher(int b,
                                         int c,
                                         int n,
                                         int r3,
                                         const int *inds,
                                         const float *wgts,
                                         const float *grad_y,
                                         float *grad_x);
#endif