part4.c 1.63 KB
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#ifdef __APPLE__
#include <OpenCL/opencl.h>
#include <CL/cl.h>
#define KERNEL ""

int main() {
    cl_platform_id platform;
    cl_device_id device;
    cl_context context;
    cl_program program;
    FILE* programHandle;
    size_t programSize, kernelSourceSize;
    char *programBuffer, *kernelSource;
    // get first available platform and gpu and create context
    clGetPlatformIDs(1, &platform, NULL);
    clGetDeviceIDs(platform, CL_DEVICE_TYPE_GPU, 1, &device, NULL);
    context = clCreateContext(NULL, 1, &device, NULL, NULL, NULL);
    // get size of kernel source
    programHandle = fopen(KERNEL, "r");
    fseek(programHandle, 0, SEEK_END);
    programSize = ftell(programHandle);
    // read kernel source into buffer
    programBuffer = (char*) malloc(programSize + 1);
    programBuffer[programSize] = '\0';
	assert (programSize == fread(programBuffer, sizeof(char), programSize, programHandle));
    // create program from buffer
    program = clCreateProgramWithSource(context, 1,
            (const char**) &programBuffer, &programSize, NULL);
    // read kernel source back in from program to check
    clGetProgramInfo(program, CL_PROGRAM_SOURCE, 0, NULL, &kernelSourceSize);
    kernelSource = (char*) malloc(kernelSourceSize);
    clGetProgramInfo(program, CL_PROGRAM_SOURCE, kernelSourceSize, kernelSource, NULL);
    printf("\nKernel source:\n\n%s\n", kernelSource);
    return 0;

// vim: set ft=c ts=4 sw=4: