megenginelite-sys 1.8.2

/**
 * \file dnn/src/fallback/warp_perspective/opr_impl.h
 * 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 "src/naive/warp_perspective/opr_impl.h"

namespace megdnn {
namespace fallback {

class WarpPerspectiveImpl : public naive::WarpPerspectiveForwardImpl {
protected:
    template <typename ctype, typename mtype>
    void kern_fallback(const KernParam<ctype, mtype>& kern_param);

public:
    using naive::WarpPerspectiveForwardImpl::WarpPerspectiveForwardImpl;
    size_t get_workspace_in_bytes(
            const TensorLayout& src, const TensorLayout& mat,
            const TensorLayout& mat_idx, const TensorLayout& dst) override;
    void exec(
            _megdnn_tensor_in src, _megdnn_tensor_in mat, _megdnn_tensor_in mat_idx,
            _megdnn_tensor_out dst, _megdnn_workspace workspace) override;

private:
    template <typename ctype>
    bool is_resize_optimizable(ctype* mat);
    template <bool is_border_constant, typename ctype, typename mtype>
    void kern_resize(const KernParam<ctype, mtype>& kern_param);
};

}  // namespace fallback
}  // namespace megdnn

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