/// <summary>
/// Setup the native platform and creates a window.
/// </summary>
/// <param name="config">Configuration for the platform - usually passed from the engine.</param>
protected virtual void Setup(Configurator config)
{
_config = config;
SetupInput();
SetupInternal(config);
// Check if the platform and graphics initialization was successful.
if (Context == null)
{
Engine.CriticalError(new Exception("Platform couldn't create graphics context."));
return;
}
// Make this the current context, and bind it.
// "There /can/ be only one."
Context.MakeCurrent();
Gl.BindAPI(Context);
// Set display mode, show and focus.
DisplayMode = config.InitialDisplayMode;
if (!config.HiddenWindow) WindowState = WindowState.Normal;
IsOpen = true;
_pauseOnFocusLoss = !config.DebugMode;
}
/// <inheritdoc />
public override void Setup(Vector2 renderSize)
{
Gl.BindAPI(s => Glfw.GetProcAddress(s));
Gl.QueryContextVersion();
// Check if context was created.
if (Gl.CurrentVersion == null)
{
ErrorHandler.SubmitError(new Exception("Couldn't connect to OpenGL context."));
return;
}
// Bind current thread as the GLThread.
GLThread.BindThread();
// Renderer bootstrap.
Engine.Log.Info("Creating OpenGL GraphicsManager...", MessageSource.GL);
Engine.Log.Info($"GL: {Gl.CurrentVersion} on {Gl.CurrentRenderer}", MessageSource.GL);
Engine.Log.Info($"GLSL: {Gl.CurrentShadingVersion}", MessageSource.GL);
CreateDefaultShader();
CreateDefaultIbo();
// Set default state.
DefaultGLState();
ResetState();
// Clear to transparent black.
Gl.ClearColor(0, 0, 0, 0);
Engine.Log.Info("GraphicsManager ready.", MessageSource.GL);
}
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());
}
public void Gl_BindAPI_Exceptions()
{
Assert.Throws <ArgumentNullException>(() => Gl.BindAPI(null, null));
Assert.Throws <ArgumentNullException>(() => Gl.BindAPI(null, new Gl.Extensions()));
// Assert.Throws<Exception>(() => Gl.QueryContextVersion());
}
public void TestBindAPIPerformance()
{
// Ensure cached attributes
Gl.BindAPI();
Stopwatch sw = Stopwatch.StartNew();
for (int i = 0; i < 10; i++)
{
Gl.BindAPI();
}
sw.Stop();
Console.WriteLine("BindAPI(): {0} ms", sw.ElapsedMilliseconds / 10.0f);
}
static void Main(string[] args)
{
Gl.Initialize();
using (var window = new NativeWindow(800, 600, "Walking Simulator"))
{
Glfw.MakeContextCurrent(window);
Gl.BindAPI();
while (!window.IsClosing)
{
Gl.ClearColor(0.0F, 0.0F, 0.0F, 1.0F);
Gl.Clear((ClearBufferMask)Gl.COLOR_BUFFER_BIT);
Console.WriteLine(Glfw.Time);
window.SwapBuffers();
Glfw.PollEvents();
}
}
}
/// <summary>
/// Setup the native platform and creates a window.
/// </summary>
/// <param name="config">Configuration for the platform - usually passed from the engine.</param>
internal virtual void Setup(Configurator config)
{
OnMouseScroll.AddListener(scroll =>
{
_mouseScrollAccum += scroll;
return(true);
});
PopulateKeyCodes();
SetupPlatform(config);
// Check if the platform initialization was successful.
if (Window == null)
{
Engine.SubmitError(new Exception("Platform couldn't create window."));
return;
}
if (Window.Context == null)
{
Engine.SubmitError(new Exception("Platform couldn't create context."));
return;
}
// Bind this window and its context.
// "There /can/ be only one."
Window.Context.MakeCurrent();
Gl.BindAPI(Window.Context.GetProcAddress);
// Set display mode, show and focus.
Window.DisplayMode = config.InitialDisplayMode;
Window.WindowState = WindowState.Normal;
// Attach default key behavior.
OnKey.AddListener(DefaultButtonBehavior);
IsSetup = true;
IsOpen = true;
}
internal static IntPtr CreateContext(Vector2I size, string title)
{
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);
var context = Glfw.CreateWindow(size.X, size.Y, title, IntPtr.Zero, DefaultContext);
if (context == IntPtr.Zero)
{
throw new NullReferenceException($"Context \"{title}\" failed to initialize.");
}
RunInSeparateContext(() =>
{
Glx.IsRequired = true;
Gl.BindAPI(new KhronosVersion(4, 1, "gl"), new Gl.Extensions());
}, context);
return(context);
}
public void Gl_TestBindAPI()
{
Assert.Throws <ArgumentNullException>(() => Gl.BindAPI(null, null));
Assert.Throws <ArgumentNullException>(() => Gl.BindAPI(null, new Gl.Extensions()));
}
