opencv/modules/gpu/src/cuda/internal_shared.hpp

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#ifndef __OPENCV_internal_shared_HPP__
#define __OPENCV_internal_shared_HPP__

#include <cuda_runtime.h>
#include <npp.h>
#include "NPP_staging.hpp"
#include "opencv2/gpu/devmem2d.hpp"
#include "safe_call.hpp"
#include "opencv2/gpu/device/common.hpp"

namespace cv { namespace gpu
{
    enum
    {
        BORDER_REFLECT101_GPU = 0,
        BORDER_REPLICATE_GPU,
        BORDER_CONSTANT_GPU,
        BORDER_REFLECT_GPU,
        BORDER_WRAP_GPU
    };

    class NppStreamHandler
    {
    public:
        inline explicit NppStreamHandler(cudaStream_t newStream = 0)
        {
            oldStream = nppGetStream();
            nppSetStream(newStream);
        }

        inline ~NppStreamHandler()
        {
            nppSetStream(oldStream);
        }

    private:
        cudaStream_t oldStream;
    };

    class NppStStreamHandler
    {
    public:
        inline explicit NppStStreamHandler(cudaStream_t newStream = 0)
        {
            oldStream = nppStSetActiveCUDAstream(newStream);
        }

        inline ~NppStStreamHandler()
        {
            nppStSetActiveCUDAstream(oldStream);
        }

    private:
        cudaStream_t oldStream;
    };
}}

#endif /* __OPENCV_internal_shared_HPP__ */