megenginelite-sys 1.8.2

A safe megenginelite wrapper in Rust
Documentation 
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/**
 * \file dnn/src/cuda/warp_perspective/warp_perspective.cuh
 * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 *
 * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 */
#pragma once
#include <cuda_runtime_api.h>

namespace megdnn {
namespace cuda {
namespace warp_perspective {

enum BorderMode {
    BORDER_REPLICATE,
    BORDER_REFLECT,
    BORDER_REFLECT_101,
    BORDER_WRAP,
    BORDER_CONSTANT BORDER_TRANSPARENT,
    BORDER_ISOLATED
};

void forward_proxy(
        const float* src, const float* mat, float* dst, int N, int C, int IH, int IW,
        int OH, int OW, float bval, BorderMode bmode, cudaStream_t stream);

void backward_data_proxy(
        const float* mat, const float* diff, float* grad, float* workspace, int N,
        int C, int IH, int IW, int OH, int OW, float bval, BorderMode bmode,
        cudaStream_t stream);
size_t get_backward_data_workspace_in_bytes(
        int N, int C, int IH, int IW, int OH, int OW, BorderMode bmode);

void backward_mat_proxy(
        const float* src, const float* mat, const float* diff, float* grad, int N,
        int C, int IH, int IW, int OH, int OW, float bval, BorderMode bmode,
        cudaStream_t stream);

}  // namespace warp_perspective
}  // namespace cuda
}  // namespace megdnn

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