opencl.h

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/*
 * opencl.h
 *
 * Copyright (C) 2013-2016 Fabian Gieseke <fabian.gieseke@di.ku.dk>
 *               2013      Justin Heinermann <justin.heinermann@uni-oldenburg.de>
 * License: GPL v2
 *
 */

#ifndef INCLUDE_OPENCL_H_
#define INCLUDE_OPENCL_H_

#ifdef MAC
#include <OpenCL/cl.h>
#else
#include <CL/cl.h>
#endif

#include <unistd.h>
#include <stdio.h>
#include <string.h>

// helper macros
#define STR_HELPER(x) #x
#define STR(x) STR_HELPER(x)

#define MAX_KERNEL_SOURCE_LENGTH 100000
#define MAX_KERNEL_CONSTANTS_LENGTH 1000

typedef struct {
    long device_mem_bytes;
    long device_max_alloc_bytes;
} DEVICE_INFOS;

#define ERROR_NO_PLATFORMS -1
#define ERROR_INVALID_PLATFORMS -2
#define ERROR_NO_DEVICES -3
#define ERROR_INVALID_DEVICE -4

void init_opencl(cl_uint platform_number,
        cl_platform_id *platform,
        cl_uint device_number,
        cl_device_id *device,
        cl_context *context,
        cl_command_queue *command_queue,
        int verbose);

void init_command_queue(cl_command_queue *command_queue,
        cl_device_id *device,
        cl_context *context);

void print_build_information(cl_program program,
        cl_device_id device);

int get_device_infos(cl_uint platform_number,
        cl_uint device_number,
        DEVICE_INFOS *device_infos);

void check_cl_error(cl_int err,
        const char *file,
        int line);

cl_kernel make_kernel_from_file(cl_context context,
        cl_device_id device,
        char *kernel_constants,
        char *kernel_filename,
        const char *kernel_name);

void readfile(char *filename,
        char **text,
        unsigned long *size);

#endif /* INCLUDE_OPENCL_H_ */