version.hpp

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#ifndef EAGINE_INTEROP_GLX_VERSION_HPP
#define EAGINE_INTEROP_GLX_VERSION_HPP
 
#include "../x11/display.hpp"
 
#include <GL/glx.h>
#include <stdexcept>
 
namespace eagine::glx {
 
class version {
private:
    int _major{0};
    int _minor{0};
 
public:
    version(const x11::display& dpy) {
        if(!::glXQueryVersion(dpy, &_major, &_minor)) {
            throw std::runtime_error("Error querying GLX version");
        }
    }
 
    void assert_at_least(int major, int minor) const {
        if((_major < major) || ((_major == major) && (_minor < minor))) {
            throw std::runtime_error("Invalid GLX version");
        }
    }
 
    auto major() const noexcept {
        return _major;
    }
 
    auto minor() const noexcept {
        return _minor;
    }
};
 
} // namespace eagine::glx
 
#endif