#define CL_HPP_MINIMUM_OPENCL_VERSION 120
#define CL_HPP_TARGET_OPENCL_VERSION 120

#include <QCoreApplication>
#include <QFile>
#include <QTextStream>
#include <CL/cl2.hpp>
#include <QDebug>

int main(int argc, char* argv[])
{
    QCoreApplication a(argc, argv);

    std::vector<cl::Platform> all_platforms;
    cl::Platform::get(&all_platforms);

    qDebug() << "Number of platforms found:" << all_platforms.size();

    foreach(auto platform, all_platforms)
    {
        qDebug() << platform.getInfo<CL_PLATFORM_NAME>().data();
    }

    std::vector<cl::Device> all_devices;
    all_platforms.front().getDevices(CL_DEVICE_TYPE_GPU, &all_devices);

    foreach(auto device, all_devices)
    {
        qDebug() << device.getInfo<CL_DEVICE_NAME>().data();
    }

    cl::Context main_context(all_devices.front());

    QFile cl_file("../OpenCL/test1.cl");
    if(!cl_file.open(QIODevice::ReadOnly))
    {
        qDebug() << cl_file.errorString();
    }
    auto script = cl_file.readAll();
    qDebug() << script;
    cl_file.close();

    cl_int error;
    cl::Program program(main_context, script.toStdString(), CL_TRUE, &error);
    qDebug() << error;

    cl::Kernel kernel(program, "myVeryFirstFinction", &error);
    qDebug() << error;

    cl::KernelFunctor<> Functor(kernel);

    cl::CommandQueue queue(main_context, all_devices.front());
    cl::EnqueueArgs enargs(queue, cl::NDRange(5));

    Functor(enargs);

    return a.exec();
}