mirror of
https://github.com/Ryujinx/Opentk.git
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567 lines
16 KiB
C#
567 lines
16 KiB
C#
#region --- License ---
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/* Copyright (c) 2006, 2007 Stefanos Apostolopoulos
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* See license.txt for license info
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*/
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#endregion
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using System;
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using System.Collections.Generic;
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using System.Text;
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using System.Diagnostics;
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using OpenTK.Platform;
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using OpenTK.Input;
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using System.Threading;
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namespace OpenTK
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{
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public class GameWindow : OpenTK.Platform.IGameWindow
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{
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#region --- Fields ---
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private INativeGLWindow glWindow;
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private ResizeEventArgs resizeEventArgs = new ResizeEventArgs();
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private DisplayMode mode;
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private InputDriver driver;
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private bool isExiting;
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private bool disposed;
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#endregion
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#region --- Contructors ---
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/// <summary>
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/// Constructs a new GameWindow, using a safe DisplayMode.
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/// </summary>
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public GameWindow()
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{
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if (Environment.OSVersion.Platform == PlatformID.Win32NT ||
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Environment.OSVersion.Platform == PlatformID.Win32Windows)
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{
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glWindow = new OpenTK.Platform.Windows.WinGLNative();
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}
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else if (Environment.OSVersion.Platform == PlatformID.Unix)
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{
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glWindow = new OpenTK.Platform.X11.X11GLNative();
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}
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else
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{
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throw new PlatformNotSupportedException(
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"Your platform is not currently supported. Refer to http://opentk.sourceforge.net for more information."
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);
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}
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glWindow.Resize += new ResizeEvent(glWindow_Resize);
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glWindow.Create += new CreateEvent(glWindow_CreateInputDriver);
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//glWindow.Destroy += new DestroyEvent(glWindow_Destroy);
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}
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void glWindow_Destroy(object sender, EventArgs e)
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{
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Debug.Print("GameWindow {0} notified of destruction.", this.isExiting.ToString());
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this.isExiting = true;
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glWindow.Destroy -= glWindow_Destroy;
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}
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void glWindow_CreateInputDriver(object sender, EventArgs e)
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{
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//glWindow.Context.MakeCurrent();
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if (driver == null)
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driver = new InputDriver(this.WindowInfo);
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glWindow.Create -= glWindow_CreateInputDriver;
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this.OnCreate(e);
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}
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void glWindow_Resize(object sender, ResizeEventArgs e)
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{
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this.OnResize(e);
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}
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#endregion
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#region --- Internal Properties ---
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#region public IList<OpenTK.Input.IInputDevice> Input
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internal InputDriver InputDriver
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{
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get
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{
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if (driver == null)
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{
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Debug.WriteLine("WARNING: Accessed null InputDriver - creating new. This may indicate a prorgamming error.");
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driver = new InputDriver(this.WindowInfo);
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}
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return driver;
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}
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}
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#endregion
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#endregion
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#region --- INativeGLWindow Members ---
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#region public void Exit()
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/// <summary>
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/// Gracefully exits the current GameWindow.
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/// Override if you want to provide yor own exit sequence.
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/// If you override this method, place a call to base.Exit(), to ensure
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/// proper OpenTK shutdown.
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/// </summary>
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public virtual void Exit()
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{
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isExiting = true;
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//glWindow.Exit();
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//this.Dispose();
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}
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#endregion
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#region public bool IsIdle
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/// <summary>
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/// Gets a value indicating whether the current GameWindow is idle.
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/// If true, the OnUpdateFrame and OnRenderFrame functions should be called.
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/// </summary>
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public bool IsIdle
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{
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get { return glWindow.IsIdle; }
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}
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#endregion
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#region public bool Quit
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/// <summary>
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/// Gets a value indicating whether the current GameWindow is quitting.
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/// </summary>
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/// <remarks>
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/// You should not call OnRenderFrame, Resize, and other GameWindow related function
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/// when the quit sequence has been initiated, as indicated by the Quitting property.
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/// NullReference- or ApplicationExceptions may occur otherwise.
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/// </remarks>
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public bool Quit
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{
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get { return glWindow.Quit; }
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}
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#endregion
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#region public bool Fullscreen
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public bool Fullscreen
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{
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get { return glWindow.Fullscreen; }
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set { glWindow.Fullscreen = value; }
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}
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#endregion
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#region public IGLContext Context
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/// <summary>
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/// Returns the opengl IGLontext associated with the current GameWindow.
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/// Forces window creation.
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/// </summary>
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public IGLContext Context
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{
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get
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{
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if (!glWindow.Exists)
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{
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Debug.WriteLine("WARNING: OpenGL Context accessed before creating a render window. This may indicate a programming error. Force-creating a render window.");
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mode = new DisplayMode(640, 480);
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this.CreateWindow(mode);
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}
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return glWindow.Context;
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}
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}
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#endregion
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#region public bool Exists
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/// <summary>
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/// Gets a value indicating whether a render window has been exists.
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/// </summary>
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public bool Exists
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{
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get { return glWindow.Exists; }
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}
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#endregion
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#region public IWindowInfo WindowInfo
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public IWindowInfo WindowInfo
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{
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get { return glWindow.WindowInfo; }
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}
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#endregion
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#region public void CreateWindow(DisplayMode mode)
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/// <summary>
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/// Creates a new render window.
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/// </summary>
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/// <param name="mode">The DisplayMode of the render window.</param>
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/// <exception cref="ApplicationException">Occurs when a render window already exists.</exception>
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public void CreateWindow(DisplayMode mode)
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{
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if (!Exists)
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{
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glWindow.CreateWindow(mode);
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}
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else
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{
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throw new ApplicationException("A render window already exists");
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}
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}
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#endregion
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#region OnCreate
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public event CreateEvent Create;
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public virtual void OnCreate(EventArgs e)
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{
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if (this.Create != null)
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{
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this.Create(this, e);
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}
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}
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#endregion
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#region public void DestroyWindow()
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public void DestroyWindow()
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{
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if (Exists)
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{
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glWindow.DestroyWindow();
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}
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else
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{
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throw new ApplicationException("Tried to destroy inexistent window.");
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}
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}
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#endregion
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#region OnDestroy
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public virtual void OnDestroy(EventArgs e)
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{
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if (this.Destroy != null)
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{
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this.Destroy(this, e);
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}
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}
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public event DestroyEvent Destroy;
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#endregion
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#endregion
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#region --- IGameWindow Members ---
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#region public virtual void Run()
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/// <summary>
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/// Runs the default game loop on GameWindow (process event->update frame->render frame).
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/// </summary>
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/// <remarks>
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/// <para>
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/// A default game loop consists of three parts: Event processing,
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/// a frame update and a frame render.
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/// </para>
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/// <para>
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/// Override this function if you want to change the behaviour of the
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/// default game loop. If you override this function, you must place
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/// a call to the ProcessEvents function, to ensure window will respond
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/// to Operating System events.
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/// </para>
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/// </remarks>
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public virtual void Run()
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{
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this.OnLoad(EventArgs.Empty);
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resizeEventArgs.Width = this.Width;
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resizeEventArgs.Height = this.Height;
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this.OnResize(resizeEventArgs);
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Debug.Print("Entering main loop");
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while (!this.Quit && !IsExiting)
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{
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this.ProcessEvents();
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if (!IsExiting)
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{
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this.OnUpdateFrame(EventArgs.Empty);
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this.OnRenderFrame(EventArgs.Empty);
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}
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}
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if (glWindow.Exists)
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{
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glWindow.Exit();
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while (glWindow.Exists)
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{
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this.ProcessEvents();
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}
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}
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}
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#endregion
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#region public void ProcessEvents()
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/// <summary>
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/// Processes operating system events until the GameWindow becomes idle.
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/// </summary>
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/// <remarks>
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/// When overriding the default GameWindow game loop (provided by the Run() function)
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/// you should call ProcessEvents() to ensure that your GameWindow responds to
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/// operating system events.
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/// <para>
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/// Once ProcessEvents() returns, it is time to call update and render the next frame.
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/// </para>
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/// </remarks>
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public void ProcessEvents()
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{
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if (driver != null)
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driver.ProcessEvents();
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glWindow.ProcessEvents();
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}
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#endregion
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#region public virtual void OnRenderFrame(EventArgs e)
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/// <summary>
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/// Raises the RenderFrame event. Override in derived classes to render a frame.
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/// </summary>
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/// <remarks>
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/// If overriden, the base.OnRenderFrame() function should be called, to ensure
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/// listeners are notified of RenderFrame events.
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/// </remarks>
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public virtual void OnRenderFrame(EventArgs e)
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{
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if (!this.Exists)
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{
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Debug.Print("WARNING: RenderFrame event raised, without a valid render window. This may indicate a programming error. Creating render window.");
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mode = new DisplayMode(640, 480);
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this.CreateWindow(mode);
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}
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if (RenderFrame != null)
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RenderFrame(this, e);
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}
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/// <summary>
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/// Occurs when it is time to render the next frame.
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/// </summary>
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public event RenderFrameEvent RenderFrame;
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#endregion
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#region public virtual void OnUpdateFrame(EventArgs e)
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/// <summary>
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/// Raises the UpdateFrame event. Override in derived classes to update a frame.
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/// </summary>
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/// <remarks>
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/// If overriden, the base.OnUpdateFrame() function should be called, to ensure
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/// listeners are notified of UpdateFrame events.
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/// </remarks>
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public virtual void OnUpdateFrame(EventArgs e)
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{
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if (!this.Exists)
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{
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Debug.Print("WARNING: UpdateFrame event raised, without a valid render window. This may indicate a programming error. Creating render window.");
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mode = new DisplayMode(640, 480);
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this.CreateWindow(mode);
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}
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if (UpdateFrame != null)
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UpdateFrame(this, e);
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}
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/// <summary>
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/// Occurs when it is time to update the next frame.
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/// </summary>
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public event UpdateFrameEvent UpdateFrame;
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#endregion
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#region public virtual void OnLoad(EventArgs e)
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/// <summary>
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/// Raises the Load event. Override to load resources that should
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/// be maintained for the lifetime of the application.
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/// </summary>
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public virtual void OnLoad(EventArgs e)
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{
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Debug.Print("Firing GameWindow.Load event.");
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if (this.Load != null)
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{
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this.Load(this, e);
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}
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}
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/// <summary>
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/// Occurs after the GameWindow has been created, but before
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/// entering the main loop.
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/// </summary>
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public event LoadEvent Load;
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#endregion
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#region public bool IsExiting
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/// <summary>
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/// Gets a value indicating whether the shutdown sequence has been initiated
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/// for this window, by calling GameWindow.Exit() or hitting the 'close' button.
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/// If this property is true, it is no longer safe to use any OpenTK.Input or
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/// OpenTK.OpenGL functions or properties.
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/// </summary>
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public bool IsExiting
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{
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get { return isExiting; }
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}
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#endregion
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#region public IList<Keyboard> Keyboard
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/// <summary>
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/// Gets the list of available Keyboard devices.
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/// </summary>
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public IList<Keyboard> Keyboard
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{
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get
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{
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return InputDriver.Keyboard;
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}
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}
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#endregion
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#endregion
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#region --- IResizable Members ---
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#region public int Width, Height
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public int Width
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{
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get { return glWindow.Width; }
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set
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{
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if (value == this.Width)
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{
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return;
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}
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else if (value > 0)
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{
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glWindow.Width = value;
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}
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else
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{
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throw new ArgumentOutOfRangeException(
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"Width",
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value,
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"Width must be greater than 0"
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);
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}
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}
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}
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public int Height
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{
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get { return glWindow.Height; }
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set
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{
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if (value == this.Height)
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{
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return;
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}
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else if (value > 0)
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{
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glWindow.Height = value;
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}
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else
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{
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throw new ArgumentOutOfRangeException(
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"Height",
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value,
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"Height must be greater than 0"
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);
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}
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}
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}
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#endregion
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#region public event ResizeEvent Resize;
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public event ResizeEvent Resize;
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/// <summary>
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/// Raises the Resize event.
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/// </summary>
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/// <param name="e">Contains the new Width and Height of the window.</param>
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protected virtual void OnResize(ResizeEventArgs e)
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{
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Debug.Print("Firing GameWindow.Resize event: {0}.", e.ToString());
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if (this.Resize != null)
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this.Resize(this, e);
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}
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#endregion
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#endregion
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#region --- IDisposable Members ---
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public void Dispose()
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{
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Dispose(true);
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GC.SuppressFinalize(this);
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}
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private void Dispose(bool manual)
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{
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if (!disposed)
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{
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// Is this safe? Maybe 'Debug' has been disposed, too...
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Debug.Print("{0} disposing GameWindow.", manual ? "Manually" : "Automatically");
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if (manual)
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{
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if (glWindow != null)
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{
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glWindow.Dispose();
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glWindow = null;
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}
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}
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disposed = true;
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}
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}
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~GameWindow()
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{
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Dispose(false);
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}
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#endregion
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}
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}
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