mirror of
https://github.com/Ryujinx/Opentk.git
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271 lines
8.4 KiB
C#
271 lines
8.4 KiB
C#
#region --- License ---
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/* Copyright (c) 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.Runtime.InteropServices;
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using System.Diagnostics;
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using OpenTK.OpenGL;
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namespace OpenTK.Platform.X11
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{
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/// <summary>
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/// Provides methods to create and control an opengl context on X11.
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/// </summary>
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public sealed class X11GLContext : OpenTK.Platform.IGLContext
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{
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private IntPtr x11context;
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private DisplayMode mode;// = new DisplayMode();
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internal WindowInfo windowInfo;
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private VisualInfo visualInfo;
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//private IntPtr desktopResolution = IntPtr.Zero;
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//private int depthBits;
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//private int stencilBits;
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// These have to be used by the X11GLControl.
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internal IntPtr visual;
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internal IntPtr colormap;
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private bool disposed;
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#region --- Public Constructor ---
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internal X11GLContext()
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{
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this.windowInfo = new WindowInfo();
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this.mode = new DisplayMode();
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}
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internal X11GLContext(WindowInfo window, DisplayMode mode)
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{
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this.windowInfo = new WindowInfo(window);
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this.mode = mode;
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}
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#endregion
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#region --- IGLContext Members ---
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#region public void SwapBuffers()
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public void SwapBuffers()
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{
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Glx.SwapBuffers(windowInfo.Display, windowInfo.Handle);
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}
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#endregion
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#region public void MakeCurrent()
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public void MakeCurrent()
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{
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Debug.Write(
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String.Format(
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"Making context {0} current on thread {1} (display: {2}, window: {3})... ",
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x11context,
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System.Threading.Thread.CurrentThread.ManagedThreadId,
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windowInfo.Display,
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windowInfo.Handle
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)
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);
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bool result = Glx.MakeCurrent(windowInfo.Display, windowInfo.Handle, x11context);
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if (!result)
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{
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Debug.WriteLine(String.Format("Failed to make context {0} current.", x11context));
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// probably need to recreate context here.
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throw new Exception(String.Format("Failed to make context {0} current.", x11context));
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}
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else
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{
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Debug.WriteLine("done!");
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}
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}
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#endregion
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public bool IsCurrent()
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{
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throw new NotImplementedException();
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}
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#region public IntPtr GetAddress(string function)
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public IntPtr GetAddress(string function)
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{
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return Glx.GetProcAddress(function);
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}
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#endregion
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public IEnumerable<DisplayMode> GetDisplayModes()
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{
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throw new Exception("The method or operation is not implemented.");
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}
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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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this.Dispose(true);
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GC.SuppressFinalize(this);
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}
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private void Dispose(bool manuallyCalled)
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{
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if (!disposed)
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{
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// Clean unmanaged resources:
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Glx.DestroyContext(windowInfo.Display, x11context);
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API.Free(visual);
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if (manuallyCalled)
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{
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// Safe to clean managed resources, too
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}
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}
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disposed = true;
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}
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~X11GLContext()
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{
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this.Dispose(false);
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}
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#endregion
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#region public void CreateContext(X11GLContext shareContext, bool direct)
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public void CreateContext(X11GLContext shareContext, bool direct)
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{
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Debug.WriteLine("Creating opengl context.");
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Debug.Indent();
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IntPtr shareHandle = shareContext != null ? shareContext.Handle : IntPtr.Zero;
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Debug.WriteLine(
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shareHandle == IntPtr.Zero ?
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"Context is not shared." :
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String.Format("Context is shared with context: {0}", shareHandle)
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);
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Debug.WriteLine(
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direct ?
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"Context is direct." :
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"Context is indirect."
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);
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x11context = Glx.CreateContext(
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windowInfo.Display,
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visual,
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shareHandle,
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direct
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);
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if (x11context != IntPtr.Zero)
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{
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Debug.WriteLine(String.Format("New opengl context created. (id: {0})", x11context));
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Debug.Unindent();
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}
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else
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{
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throw new ApplicationException("Could not create opengl context.");
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}
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}
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#endregion
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#region public void CreateVisual()
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internal VisualInfo CreateVisual()
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{
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Debug.WriteLine("Creating visual.");
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Debug.Indent();
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/*
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ColorDepth color = new ColorDepth(24);
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int depthBits = 16;
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// Create the Visual
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List<int> visualAttributes = new List<int>();
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visualAttributes.Add((int)Glx.Enums.GLXAttribute.RGBA);
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visualAttributes.Add((int)Glx.Enums.GLXAttribute.RED_SIZE);
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visualAttributes.Add((int)color.Red);
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visualAttributes.Add((int)Glx.Enums.GLXAttribute.GREEN_SIZE);
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visualAttributes.Add((int)color.Green);
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visualAttributes.Add((int)Glx.Enums.GLXAttribute.BLUE_SIZE);
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visualAttributes.Add((int)color.Blue);
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visualAttributes.Add((int)Glx.Enums.GLXAttribute.ALPHA_SIZE);
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visualAttributes.Add((int)color.Alpha);
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visualAttributes.Add((int)Glx.Enums.GLXAttribute.DEPTH_SIZE);
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visualAttributes.Add((int)depthBits);
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visualAttributes.Add((int)Glx.Enums.GLXAttribute.DOUBLEBUFFER);
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visualAttributes.Add((int)Glx.Enums.GLXAttribute.NONE);
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*/
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Debug.Print("Requesting DisplayMode: {0}. ", mode.ToString());
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// Hack; Temp workaround for invalid depth of 24
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if (mode.DepthBits == 24)
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{
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mode.DepthBits = 16;
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Debug.WriteLine("Temporary workaround applied: depth changed to 16.");
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}
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List<int> visualAttributes = new List<int>();
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visualAttributes.Add((int)Glx.Enums.GLXAttribute.RGBA);
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visualAttributes.Add((int)Glx.Enums.GLXAttribute.RED_SIZE);
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visualAttributes.Add((int)mode.Color.Red);
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visualAttributes.Add((int)Glx.Enums.GLXAttribute.GREEN_SIZE);
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visualAttributes.Add((int)mode.Color.Green);
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visualAttributes.Add((int)Glx.Enums.GLXAttribute.BLUE_SIZE);
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visualAttributes.Add((int)mode.Color.Blue);
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visualAttributes.Add((int)Glx.Enums.GLXAttribute.ALPHA_SIZE);
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visualAttributes.Add((int)mode.Color.Alpha);
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visualAttributes.Add((int)Glx.Enums.GLXAttribute.DEPTH_SIZE);
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//visualAttributes.Add((int)mode.DepthBits);
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visualAttributes.Add(1);
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visualAttributes.Add((int)Glx.Enums.GLXAttribute.DOUBLEBUFFER);
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visualAttributes.Add((int)Glx.Enums.GLXAttribute.NONE);
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visual = Glx.ChooseVisual(windowInfo.Display, windowInfo.Screen, visualAttributes.ToArray());
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if (visual == IntPtr.Zero)
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{
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throw new ApplicationException("Requested mode not available.");
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}
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windowInfo.VisualInfo = (VisualInfo)Marshal.PtrToStructure(visual, typeof(VisualInfo));
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Debug.Print("Got visual: {0}", windowInfo.VisualInfo.ToString());
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Debug.Unindent();
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return windowInfo.VisualInfo;
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}
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#endregion
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internal IntPtr XVisual
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{
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get { return this.visual; }
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}
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internal VisualInfo XVisualInfo
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{
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get { return windowInfo.VisualInfo; }
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}
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internal IntPtr XColormap
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{
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get { return colormap; }
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}
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internal IntPtr Handle
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{
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get { return this.x11context; }
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}
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}
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}
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