static ContextManager()
{
Gl.Initialize();
Glfw.Init();
Glfw.DefaultWindowHints();
Glfw.WindowHint(Glfw.ContextVersionMajor, 4);
Glfw.WindowHint(Glfw.ContextVersionMinor, 1);
Glfw.WindowHint(Glfw.OpenglProfile, Glfw.OpenglCoreProfile);
Glfw.WindowHint(Glfw.OpenglForwardCompat, Glfw.True);
Glfw.WindowHint(Glfw.Doublebuffer, Glfw.True);
Glfw.WindowHint(Glfw.Visible, Glfw.False);
DefaultContext = Glfw.CreateWindow(1, 1, "", IntPtr.Zero, IntPtr.Zero);
if (DefaultContext == IntPtr.Zero)
{
throw new NullReferenceException("Default OpenGL context failed to initialize.");
}
SetActiveContext(DefaultContext);
Glx.IsRequired = true;
Gl.BindAPI(new KhronosVersion(4, 1, "gl"), new Gl.Extensions());
}
private static void SetGlfwWindowHints()
{
_glfw.DefaultWindowHints();
if (_useOpenGl)
{
_glfw.WindowHint(WindowHintContextApi.ContextCreationApi,
_automaticFallback || !_useEgl ? ContextApi.NativeContextApi : ContextApi.EglContextApi);
_glfw.WindowHint(WindowHintClientApi.ClientApi, ClientApi.OpenGL);
_glfw.WindowHint(WindowHintOpenGlProfile.OpenGlProfile, OpenGlProfile.Core);
_glfw.WindowHint(WindowHintInt.ContextVersionMajor, 3);
_glfw.WindowHint(WindowHintInt.ContextVersionMinor, 2);
}
else
{
_glfw.WindowHint(WindowHintContextApi.ContextCreationApi,
_automaticFallback || _useEgl ? ContextApi.EglContextApi : ContextApi.NativeContextApi);
_glfw.WindowHint(WindowHintClientApi.ClientApi, ClientApi.OpenGLES);
_glfw.WindowHint(WindowHintInt.ContextVersionMajor, _majOES);
_glfw.WindowHint(WindowHintInt.ContextVersionMinor, 0);
}
_glfw.WindowHint(WindowHintInt.RedBits, 8);
_glfw.WindowHint(WindowHintInt.GreenBits, 8);
_glfw.WindowHint(WindowHintInt.BlueBits, 8);
_glfw.WindowHint(WindowHintInt.DepthBits, 24);
_glfw.WindowHint(WindowHintInt.StencilBits, 8);
if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
{
// osx graphics switching
_glfw.WindowHint((WindowHintBool)0x00023003, true);
}
}
/// <summary>
/// Initialize this windows instance.
/// </summary>
public void Initialize()
{
// - Reset window hints
Glfw.DefaultWindowHints();
// - Let the user choose whenever show the window
Glfw.WindowHint(Hint.ClientApi, 0);
Glfw.WindowHint(Hint.Visible, false);
// - Make the new window saving the GLFW pointer
GLFWHAndle = Glfw.CreateWindow
(
Size.Value.Width,
Size.Value.Height,
Title,
Monitor.None,
Window.None
);
// - Manage events handlers
Glfw.SetWindowSizeCallback(GLFWHAndle, pSizeCallback);
// - Send initialization event
Initialized?.Invoke(this, EventArgs.Empty);
}
