sf::ContextSettings settings;
settings.depthBits = 24;
settings.stencilBits = 8;
settings.antialiasingLevel = 2;
sf::Window window(sf::VideoMode(2048, 1024), "GAME",
    		sf::Style::Fullscreen, settings);
glewInit();
cl_platform_id platform_id = NULL;
cl_device_id device_id = NULL;
cl_uint ret_num_devices;
cl_uint ret_num_platforms;
cl_int ret = clGetPlatformIDs(1, &platform_id, &ret_num_platforms);
    
ret = clGetDeviceIDs(platform_id, CL_DEVICE_TYPE_GPU, 1, &device_id,
    		&ret_num_devices);
    
cl_context_properties props[] = { CL_GL_CONTEXT_KHR,
    		(cl_context_properties) wglGetCurrentContext(), CL_WGL_HDC_KHR,
    		(cl_context_properties) wglGetCurrentDC(), CL_CONTEXT_PLATFORM,
    		(cl_context_properties) platform_id, 0 };
    
cl_context context = clCreateContext(props, 1, &device_id, NULL, NULL,
    		&ret);
    
GLuint vboID_m = 0;

glGenBuffers(1, &vboID_m);
glBindBuffer(GL_ARRAY_BUFFER, vboID_m);
{
    
    std::vector<float> tmp = { 0., 0., 0., 0., 0., 0., 0., 0., 0. };
    
    glBufferData(GL_ARRAY_BUFFER, (tmp.size()) * sizeof(float), 0,
    	GL_STATIC_DRAW);
    glBufferSubData(GL_ARRAY_BUFFER, 0, tmp.size() * sizeof(float),
    		tmp.data());
}
glBindBuffer(GL_ARRAY_BUFFER, 0);
    
glFlush();

cl_int status;
clCreateFromGLBuffer(context, CL_MEM_READ_WRITE, vboID_m, &status);
return 0;