eglplus/001_basic_info.cpp

Copyright Matus Chochlik. Distributed under the Boost Software License, Version 1.0. See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt

 
#include <eglplus/egl.hpp>
#include <eglplus/egl_api.hpp>
#include <iostream>
 
auto main() -> int {
    using namespace eagine;
    using namespace eagine::eglp;
 
    egl_api egl;
 
    if(ok display = egl.get_display()) {
        if(auto init_res = egl.initialize(display)) {
            auto do_cleanup = egl.terminate.raii(display);
 
            if(ok dev_count{egl.query_devices.count()}) {
                std::cout << "Devices: " << dev_count << std::endl;
            }
 
            if(ok vendor = egl.query_string(display, egl.vendor)) {
                std::cout << "Vendor:  " << extract(vendor) << std::endl;
            }
 
            if(ok version = egl.query_string(display, egl.version)) {
                std::cout << "Version: " << extract(version) << std::endl;
            }
 
        } else {
            std::cout << "failed to initialize EGL" << std::endl;
        }
    } else {
        std::cout << "failed to get default display" << std::endl;
    }
    return 0;
}