fill an image of w x h pixels with 4-channels / pixel with random data each channel is an unisgned 8-bit value

Enumerate platforms and display information about them and their associated devices.

Display the texture in the window

Generate a random graph

generate the reference results for floating-point RGBA image. this reference result will be compared with histogram results generated by the OpenCL de

generate the reference results for unsigned 8-bit RGBA image. this reference result will be compared with histogram results generated by the OpenCL de

Gets the id of the first device from the context (from the NVIDIA SDK)

Initialize OpenCL buffers for single run of Dijkstra

Load and build an OpenCL program from source file \param gpuContext GPU context on which to load and build the program \param fileName File name of so

Parse command line arguments

Demonstrate usage of the GL Object querying capabilities

Render the vertex buffer object (VBO) contents

Run Dijkstra's shortest path on the GraphData provided to this function. This function will compute the shortest path distance from sourceVertices[n]

Run Dijkstra's shortest path on the GraphData provided to this function. This function will compute the shortest path distance from sourceVertices[n]

! Create a new CL error exception for a given error code * and corresponding message. */

Keyboard events handler

called when window size changes

Check for error condition and exit if found. Print file and line number of error. (from NVIDIA SDK)

Worker thread for running the algorithm on one of the compute devices