Helper.h

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#pragma once

#ifdef BUILD_CUDA_MODULE

#include <cuda.h>
#include <cuda_runtime.h>

#endif  // #ifdef BUILD_CUDA_MODULE

#include <stdio.h>

#include <stdexcept>
#include <string>

#ifdef BUILD_CUDA_MODULE
#define OPEN3D_ML_CUDA_CHECK(err) \
    { open3d::ml::__OPEN3D_ML_CUDA_CHECK((err), __FILE__, __LINE__); }
#endif

namespace open3d {
namespace ml {

#ifdef BUILD_CUDA_MODULE
inline int GetCUDACurrentDeviceTextureAlignment() {
    int device = 0;
    cudaError_t err = cudaGetDevice(&device);
    if (err != cudaSuccess) {
        throw std::runtime_error(
                "GetCUDACurrentDeviceTextureAlignment(): cudaGetDevice failed "
                "with {}" +
                std::string(cudaGetErrorString(err)));
    }

    int value = 0;
    err = cudaDeviceGetAttribute(&value, cudaDevAttrTextureAlignment, device);
    if (err != cudaSuccess) {
        throw std::runtime_error(
                "GetCUDACurrentDeviceTextureAlignment(): cudaGetDevice failed "
                "with {}" +
                std::string(cudaGetErrorString(err)));
    }
    return value;
}

inline void __OPEN3D_ML_CUDA_CHECK(cudaError_t err,
                                   const char *file,
                                   int line,
                                   bool abort = true) {
    if (err != cudaSuccess) {
        fprintf(stderr, "%s:%d CUDA runtime error: %s\n", file, line,
                cudaGetErrorString(err));
        if (abort) {
            exit(err);
        }
    }
}
#endif

}  // namespace ml
}  // namespace open3d