Program Listing for File copygen.hpp

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/*
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*  Copyright (c) 2011, Willow Garage, Inc.
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*  Author: Anatoly Baskeheev, Itseez Ltd, (myname.mysurname@mycompany.com)
*/

#ifndef PCL_GPU_OCTREE_COPYGE_HPP
#define PCL_GPU_OCTREE_COPYGE_HPP

#include <pcl/gpu/utils/device/warp.hpp>

namespace pcl
{
    namespace device
    {

        template <typename T>
        __device__ void CopyKernel(const T* in, T *out, int length)
        {
            int STRIDE = gridDim.x * blockDim.x;
            for (int idx = (blockIdx.x * blockDim.x) + threadIdx.x; idx < length; idx += STRIDE)
            {
                out[idx] = in[idx];
            }
        }

        template <typename T>
        __device__ void GenerateKernel(T* out, int beg, int end)
        {
            int length = end - beg;
            int pos = beg;

            int STRIDE = blockDim.x;
            for (int idx = threadIdx.x; idx < length; idx += STRIDE, pos += STRIDE)
            {
                out[idx] = pos + threadIdx.x;
            }
        }

        template <typename T>
        __device__ void GenerateTasksKernel(T* out, int beg, int end, int level)
        {
            int length = end - beg;
            int pos = beg;

            int STRIDE = blockDim.x;
            for (int idx = threadIdx.x; idx < length; idx += STRIDE, pos += STRIDE)
            {
                out[idx] = ((pos + threadIdx.x) << 8) + level;
            }
        }
    }
}

#endif /* PCL_GPU_OCTREE_COPYGE_HPP */