InterpolateKernel.h

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//***************************************************************************************/
//
//    Based on Pointnet2 Library (MIT License):
//    https://github.com/sshaoshuai/Pointnet2.PyTorch
//
//    Copyright (c) 2019 Shaoshuai Shi
//
//    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
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//    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
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#pragma once

void three_nn_launcher(int b,
                       int n,
                       int m,
                       const float *unknown,
                       const float *known,
                       float *dist2,
                       int *idx);

void three_interpolate_launcher(int b,
                                int c,
                                int m,
                                int n,
                                const float *points,
                                const int *idx,
                                const float *weight,
                                float *out);

void three_interpolate_grad_launcher(int b,
                                     int c,
                                     int n,
                                     int m,
                                     const float *grad_out,
                                     const int *idx,
                                     const float *weight,
                                     float *grad_points);