Opentk/Source/GLControl/Sdl2GLControl.cs
Stefanos A. b57e58dc47 Implemented Sdl2GLControl
SDL2 still fails with "not an OpenGL window".
2013-09-30 20:47:29 +02:00

81 lines
2.8 KiB
C#

#region License
//
// The Open Toolkit Library License
//
// Copyright (c) 2006 - 2013 Stefanos Apostolopoulos
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is furnished to do
// so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
//
#endregion
using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Text;
using System.Windows.Forms;
using OpenTK.Graphics;
using OpenTK.Platform;
namespace OpenTK
{
class Sdl2GLControl : IGLControl
{
IWindowInfo window_info;
GraphicsMode mode;
public Sdl2GLControl(GraphicsMode mode, Control control)
{
this.mode = mode;
window_info = Utilities.CreateSdl2WindowInfo(control.Handle);
// On windows, we must set the SDL_WINDOW_OPENGL flag
// otherwise context creation will fail.
if (Configuration.RunningOnWindows)
{
// Set SDL_WINDOW_OPENGL in the SDL_Window->flags field
int flags_offset = 52; // 2 * IntPtr.Size + 9 * sizeof(int);
uint flags = (uint)Marshal.ReadInt32(window_info.Handle, 20);
flags |= 2;
Marshal.WriteInt32(window_info.Handle, flags_offset, (int)flags);
}
}
public Graphics.IGraphicsContext CreateContext(int major, int minor, Graphics.GraphicsContextFlags flags)
{
return new GraphicsContext(mode, window_info, major, minor, flags);
}
public bool IsIdle
{
get { return NativeMethods.SDL_HasEvents(0, 0xffff); }
}
public Platform.IWindowInfo WindowInfo
{
get { return window_info; }
}
static class NativeMethods
{
[DllImport("SDL2.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern bool SDL_HasEvents(int minType, int maxType);
}
}
}