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

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

#include <image_gpu.h>

Public Member Functions
__device__ PixelType &	operator() (int x, int y)
__host__	KernelData (const ImageGpu< PixelType, Allocator > &im)

Data Fields
PixelType *	data_
int	width_
int	height_
int	stride_

Detailed Description

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

Struct pointer KernelData that can be used in CUDA kernels.

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

 template<typename PixelType, class Allocator>
 __global__ void cudaFunctionKernel(ImageGpu<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;

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

template<typename PixelType, class Allocator>
void doSomethingWithCuda(iu::ImageGpu<PixelType, Allocator> *img, PixelType value)
{
    dim3 dimBlock(32,32);
    dim3 dimGrid(iu::divUp(img->width(), dimBlock.x),
                 iu::divUp(img->height(), dimBlock.y));
    cudaFunctionKernel<PixelType, Allocator><<<dimGrid, dimBlock>>>(*img, value);
    IU_CUDA_CHECK;
}

Constructor & Destructor Documentation

template<typename PixelType, class Allocator>

__host__ iu::ImageGpu< PixelType, Allocator >::KernelData::KernelData ( const ImageGpu< PixelType, Allocator > &  im )

inline

Constructor

Member Function Documentation

template<typename PixelType, class Allocator>

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

inline

Access the image via the () operator.

Parameters

x	Position in x.
y	Position in y.

Returns

value at position (x,y).

Field Documentation

template<typename PixelType, class Allocator>

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

Pointer to device buffer.

template<typename PixelType, class Allocator>

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

Height of the Image.

template<typename PixelType, class Allocator>

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

Distance in pixels between starts of consecutive rows.

template<typename PixelType, class Allocator>

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

Width of the Image.

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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/image_gpu.h