119 lines
3.7 KiB
C#
119 lines
3.7 KiB
C#
using Gtk;
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using SPB.Graphics;
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using SPB.Graphics.OpenGL;
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using SPB.Platform;
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using SPB.Platform.GLX;
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using SPB.Platform.WGL;
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using SPB.Windowing;
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using System;
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using System.ComponentModel;
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using System.Runtime.InteropServices;
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namespace Ryujinx.Ui
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{
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[ToolboxItem(true)]
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public class GLWidget : DrawingArea
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{
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private bool _initialized;
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public event EventHandler Initialized;
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public event EventHandler ShuttingDown;
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public OpenGLContextBase OpenGLContext { get; private set; }
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public NativeWindowBase NativeWindow { get; private set; }
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public FramebufferFormat FramebufferFormat { get; }
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public int GLVersionMajor { get; }
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public int GLVersionMinor { get; }
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public OpenGLContextFlags ContextFlags { get; }
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public bool DirectRendering { get; }
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public OpenGLContextBase SharedContext { get; }
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public GLWidget(FramebufferFormat framebufferFormat, int major, int minor, OpenGLContextFlags flags = OpenGLContextFlags.Default, bool directRendering = true, OpenGLContextBase sharedContext = null)
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{
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FramebufferFormat = framebufferFormat;
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GLVersionMajor = major;
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GLVersionMinor = minor;
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ContextFlags = flags;
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DirectRendering = directRendering;
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SharedContext = sharedContext;
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}
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protected override bool OnDrawn(Cairo.Context cr)
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{
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if (!_initialized)
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{
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Intialize();
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}
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return true;
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}
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private NativeWindowBase RetrieveNativeWindow()
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{
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if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
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{
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IntPtr windowHandle = gdk_win32_window_get_handle(Window.Handle);
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return new WGLWindow(new NativeHandle(windowHandle));
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}
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else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
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{
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IntPtr displayHandle = gdk_x11_display_get_xdisplay(Display.Handle);
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IntPtr windowHandle = gdk_x11_window_get_xid(Window.Handle);
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return new GLXWindow(new NativeHandle(displayHandle), new NativeHandle(windowHandle));
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}
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throw new NotImplementedException();
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}
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[DllImport("libgdk-3-0.dll")]
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private static extern IntPtr gdk_win32_window_get_handle(IntPtr d);
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[DllImport("libgdk-3.so.0")]
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private static extern IntPtr gdk_x11_display_get_xdisplay(IntPtr gdkDisplay);
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[DllImport("libgdk-3.so.0")]
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private static extern IntPtr gdk_x11_window_get_xid(IntPtr gdkWindow);
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private void Intialize()
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{
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NativeWindow = RetrieveNativeWindow();
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Window.EnsureNative();
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OpenGLContext = PlatformHelper.CreateOpenGLContext(FramebufferFormat, GLVersionMajor, GLVersionMinor, ContextFlags, DirectRendering, SharedContext);
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OpenGLContext.Initialize(NativeWindow);
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OpenGLContext.MakeCurrent(NativeWindow);
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_initialized = true;
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Initialized?.Invoke(this, EventArgs.Empty);
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}
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protected override void Dispose(bool disposing)
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{
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// Try to bind the OpenGL context before calling the shutdown event
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try
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{
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OpenGLContext?.MakeCurrent(NativeWindow);
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}
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catch (Exception) { }
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ShuttingDown?.Invoke(this, EventArgs.Empty);
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// Unbind context and destroy everything
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try
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{
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OpenGLContext?.MakeCurrent(null);
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}
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catch (Exception) { }
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OpenGLContext.Dispose();
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}
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}
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}
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