iu::VolumeGpu< PixelType, Allocator >::KernelData Struct Reference

Struct pointer KernelData that can be used in CUDA kernels. More...

#include <volume_gpu.h>

Public Member Functions
__device__ PixelType &	operator() (int x, int y, int z)
__host__	KernelData (const VolumeGpu< PixelType, Allocator > &vol)

Data Fields
PixelType *	data_
int	width_
int	height_
int	depth_
int	stride_

Detailed Description

template<typename PixelType, class Allocator>
struct iu::VolumeGpu< PixelType, Allocator >::KernelData

Struct pointer KernelData that can be used in CUDA kernels.

Todo:

cuda texture for VolumeGpu

This struct provides the device data pointer as well as important class properties.

 template<typename PixelType, class Allocator>
 __global__ void cudaFunctionKernel(VolumeGpu<PixelType, Allocator>::KernelData img, PixelType value)
 {
    const unsigned int x = threadIdx.x + blockIdx.x * blockDim.x;
    const unsigned int y = threadIdx.y + blockIdx.y * blockDim.y;
    const unsigned int z = threadIdx.z + blockIdx.z * blockDim.z;

    if (x < img.width_ && y < img.height_ && z < img.depth_)
    {
       img(x, y, z) += value;
    }
 }

template<typename PixelType, class Allocator>
void doSomethingWithCuda(iu::VolumeGpu<PixelType, Allocator> *img, PixelType value)
{
    dim3 dimBlock(8,8,4);
    dim3 dimGrid(iu::divUp(img->width(), dimBlock.x),
                 iu::divUp(img->height(), dimBlock.y),
                 iu::divUp(img->depth(), dimBlock.z));
    cudaFunctionKernel<PixelType, Allocator><<<dimGrid, dimBlock>>>(*img, value);
    IU_CUDA_CHECK;
}

Constructor & Destructor Documentation

template<typename PixelType, class Allocator>

__host__ iu::VolumeGpu< PixelType, Allocator >::KernelData::KernelData ( const VolumeGpu< PixelType, Allocator > &  vol )

inline

Constructor.

Member Function Documentation

template<typename PixelType, class Allocator>

__device__ PixelType& iu::VolumeGpu< PixelType, Allocator >::KernelData::operator() ( int  x, int  y, int  z  )

inline

Access the image via the () operator.

Parameters

x	Position in x.
y	Position in y.
z	Position in z.

Returns

value at position (x,y,z).

Field Documentation

template<typename PixelType, class Allocator>

PixelType* iu::VolumeGpu< PixelType, Allocator >::KernelData::data_

Pointer to device buffer.

template<typename PixelType, class Allocator>

int iu::VolumeGpu< PixelType, Allocator >::KernelData::depth_

Depth of Volume.

template<typename PixelType, class Allocator>

int iu::VolumeGpu< PixelType, Allocator >::KernelData::height_

Height of Volume.

template<typename PixelType, class Allocator>

int iu::VolumeGpu< PixelType, Allocator >::KernelData::stride_

Distance in pixels between starts of consecutive rows.

template<typename PixelType, class Allocator>

int iu::VolumeGpu< PixelType, Allocator >::KernelData::width_

Width of Volume.

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The documentation for this struct was generated from the following file:

• /home/christian/workdir/postdoc/projects/mobile-vision-private/software/libs/mobilevision/imageutilities/include/iu/iucore/volume_gpu.h