mirror of
https://github.com/Ryujinx/Opentk.git
synced 2024-12-26 04:05:36 +00:00
62c9793a6e
ContextAttribute.DOUBLEBUFFER is a boolean in SDL (false->single buffering, true->double buffering). We need to adjust the number of buffers accordingly (single buffering->1 buffer, double buffering->2 buffers).
349 lines
12 KiB
C#
349 lines
12 KiB
C#
#region License
|
|
//
|
|
// The Open Toolkit Library License
|
|
//
|
|
// Copyright (c) 2006 - 2013 Stefanos Apostolopoulos for the Open Toolkit library.
|
|
//
|
|
// 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.Diagnostics;
|
|
using OpenTK;
|
|
using OpenTK.Graphics;
|
|
|
|
namespace OpenTK.Platform.SDL2
|
|
{
|
|
class Sdl2GraphicsContext : DesktopGraphicsContext
|
|
{
|
|
IWindowInfo Window { get; set; }
|
|
ContextHandle SdlContext { get; set; }
|
|
|
|
Sdl2GraphicsContext(IWindowInfo window)
|
|
{
|
|
// It is possible to create a GraphicsContext on a window
|
|
// that is not owned by SDL (e.g. a GLControl). In that case,
|
|
// we need to use SDL_CreateWindowFrom in order to
|
|
// convert the foreign window to a SDL window.
|
|
if (window is Sdl2WindowInfo)
|
|
{
|
|
Window = window;
|
|
}
|
|
else
|
|
{
|
|
Window = new Sdl2WindowInfo(
|
|
SDL.CreateWindowFrom(window.Handle),
|
|
null);
|
|
}
|
|
}
|
|
|
|
public Sdl2GraphicsContext(GraphicsMode mode,
|
|
IWindowInfo win, IGraphicsContext shareContext,
|
|
int major, int minor,
|
|
OpenTK.Graphics.GraphicsContextFlags flags)
|
|
: this(win)
|
|
{
|
|
lock (SDL.Sync)
|
|
{
|
|
SetGLAttributes(mode, shareContext, major, minor, flags);
|
|
SdlContext = new ContextHandle(SDL.GL.CreateContext(Window.Handle));
|
|
Mode = GetGLAttributes(SdlContext, out flags);
|
|
Debug.Print("SDL2 created GraphicsContext (mode: {0}) (flags: {1}",
|
|
Mode, flags);
|
|
}
|
|
if (SdlContext == ContextHandle.Zero)
|
|
{
|
|
var error = SDL.GetError();
|
|
Debug.Print("SDL2 failed to create OpenGL context: {0}", error);
|
|
throw new GraphicsContextException(error);
|
|
}
|
|
Handle = GraphicsContext.GetCurrentContext();
|
|
}
|
|
|
|
#region Private Members
|
|
|
|
static GraphicsMode GetGLAttributes(ContextHandle sdlContext, out GraphicsContextFlags context_flags)
|
|
{
|
|
context_flags = 0;
|
|
|
|
int accum_red, accum_green, accum_blue, accum_alpha;
|
|
SDL.GL.GetAttribute(ContextAttribute.ACCUM_RED_SIZE, out accum_red);
|
|
SDL.GL.GetAttribute(ContextAttribute.ACCUM_GREEN_SIZE, out accum_green);
|
|
SDL.GL.GetAttribute(ContextAttribute.ACCUM_BLUE_SIZE, out accum_blue);
|
|
SDL.GL.GetAttribute(ContextAttribute.ACCUM_ALPHA_SIZE, out accum_alpha);
|
|
|
|
int buffers;
|
|
SDL.GL.GetAttribute(ContextAttribute.DOUBLEBUFFER, out buffers);
|
|
// DOUBLEBUFFER return a boolean (0-false, 1-true), so we need
|
|
// to adjust the buffer count (false->1 buffer, true->2 buffers)
|
|
buffers++;
|
|
|
|
int red, green, blue, alpha;
|
|
SDL.GL.GetAttribute(ContextAttribute.RED_SIZE, out red);
|
|
SDL.GL.GetAttribute(ContextAttribute.GREEN_SIZE, out green);
|
|
SDL.GL.GetAttribute(ContextAttribute.BLUE_SIZE, out blue);
|
|
SDL.GL.GetAttribute(ContextAttribute.ALPHA_SIZE, out alpha);
|
|
|
|
int depth, stencil;
|
|
SDL.GL.GetAttribute(ContextAttribute.DEPTH_SIZE, out depth);
|
|
SDL.GL.GetAttribute(ContextAttribute.STENCIL_SIZE, out stencil);
|
|
|
|
int samples;
|
|
SDL.GL.GetAttribute(ContextAttribute.MULTISAMPLESAMPLES, out samples);
|
|
|
|
int stereo;
|
|
SDL.GL.GetAttribute(ContextAttribute.STEREO, out stereo);
|
|
|
|
int major, minor;
|
|
SDL.GL.GetAttribute(ContextAttribute.CONTEXT_MAJOR_VERSION, out major);
|
|
SDL.GL.GetAttribute(ContextAttribute.CONTEXT_MINOR_VERSION, out minor);
|
|
|
|
int flags;
|
|
SDL.GL.GetAttribute(ContextAttribute.CONTEXT_FLAGS, out flags);
|
|
|
|
int egl;
|
|
SDL.GL.GetAttribute(ContextAttribute.CONTEXT_EGL, out egl);
|
|
|
|
int profile;
|
|
SDL.GL.GetAttribute(ContextAttribute.CONTEXT_PROFILE_MASK, out profile);
|
|
|
|
if (egl != 0)
|
|
{
|
|
context_flags |= GraphicsContextFlags.Embedded;
|
|
}
|
|
|
|
if ((flags & (int)ContextFlags.DEBUG) != 0)
|
|
{
|
|
context_flags |= GraphicsContextFlags.Debug;
|
|
}
|
|
|
|
if ((profile & (int)ContextProfileFlags.CORE) != 0)
|
|
{
|
|
context_flags |= GraphicsContextFlags.ForwardCompatible;
|
|
}
|
|
|
|
return new GraphicsMode(
|
|
new ColorFormat(red, green, blue, alpha),
|
|
depth,
|
|
stencil,
|
|
samples,
|
|
new ColorFormat(accum_red, accum_green, accum_blue, accum_alpha),
|
|
buffers,
|
|
stereo != 0 ? true : false);
|
|
}
|
|
|
|
static void SetGLAttributes(GraphicsMode mode,
|
|
IGraphicsContext shareContext,
|
|
int major, int minor,
|
|
GraphicsContextFlags flags)
|
|
{
|
|
if (mode.AccumulatorFormat.BitsPerPixel > 0)
|
|
{
|
|
SDL.GL.SetAttribute(ContextAttribute.ACCUM_ALPHA_SIZE, mode.AccumulatorFormat.Alpha);
|
|
SDL.GL.SetAttribute(ContextAttribute.ACCUM_RED_SIZE, mode.AccumulatorFormat.Red);
|
|
SDL.GL.SetAttribute(ContextAttribute.ACCUM_GREEN_SIZE, mode.AccumulatorFormat.Green);
|
|
SDL.GL.SetAttribute(ContextAttribute.ACCUM_BLUE_SIZE, mode.AccumulatorFormat.Blue);
|
|
}
|
|
|
|
if (mode.Buffers > 0)
|
|
{
|
|
SDL.GL.SetAttribute(ContextAttribute.DOUBLEBUFFER, mode.Buffers > 1 ? 1 : 0);
|
|
}
|
|
|
|
if (mode.ColorFormat > 0)
|
|
{
|
|
SDL.GL.SetAttribute(ContextAttribute.ALPHA_SIZE, mode.ColorFormat.Alpha);
|
|
SDL.GL.SetAttribute(ContextAttribute.RED_SIZE, mode.ColorFormat.Red);
|
|
SDL.GL.SetAttribute(ContextAttribute.GREEN_SIZE, mode.ColorFormat.Green);
|
|
SDL.GL.SetAttribute(ContextAttribute.BLUE_SIZE, mode.ColorFormat.Blue);
|
|
}
|
|
|
|
if (mode.Depth > 0)
|
|
{
|
|
SDL.GL.SetAttribute(ContextAttribute.DEPTH_SIZE, mode.Depth);
|
|
}
|
|
|
|
if (mode.Samples > 0)
|
|
{
|
|
SDL.GL.SetAttribute(ContextAttribute.MULTISAMPLEBUFFERS, 1);
|
|
SDL.GL.SetAttribute(ContextAttribute.MULTISAMPLESAMPLES, mode.Samples);
|
|
}
|
|
|
|
if (mode.Stencil > 0)
|
|
{
|
|
SDL.GL.SetAttribute(ContextAttribute.STENCIL_SIZE, mode.Stereo ? 1 : 0);
|
|
}
|
|
|
|
if (mode.Stereo)
|
|
{
|
|
SDL.GL.SetAttribute(ContextAttribute.STEREO, 1);
|
|
}
|
|
|
|
if (major > 0)
|
|
{
|
|
SDL.GL.SetAttribute(ContextAttribute.CONTEXT_MAJOR_VERSION, major);
|
|
SDL.GL.SetAttribute(ContextAttribute.CONTEXT_MINOR_VERSION, minor);
|
|
}
|
|
|
|
if ((flags & GraphicsContextFlags.Debug) != 0)
|
|
{
|
|
SDL.GL.SetAttribute(ContextAttribute.CONTEXT_FLAGS, ContextFlags.DEBUG);
|
|
}
|
|
|
|
/*
|
|
if ((flags & GraphicsContextFlags.Robust) != 0)
|
|
{
|
|
SDL.GL.SetAttribute(ContextAttribute.CONTEXT_FLAGS, ContextFlags.ROBUST_ACCESS_FLAG);
|
|
}
|
|
|
|
if ((flags & GraphicsContextFlags.ResetIsolation) != 0)
|
|
{
|
|
SDL.GL.SetAttribute(ContextAttribute.CONTEXT_FLAGS, ContextFlags.RESET_ISOLATION_FLAG);
|
|
}
|
|
*/
|
|
|
|
{
|
|
ContextProfileFlags cpflags = 0;
|
|
if ((flags & GraphicsContextFlags.Embedded) != 0)
|
|
{
|
|
cpflags |= ContextProfileFlags.ES;
|
|
SDL.GL.SetAttribute(ContextAttribute.CONTEXT_EGL, 1);
|
|
}
|
|
|
|
if ((flags & GraphicsContextFlags.ForwardCompatible) != 0)
|
|
{
|
|
cpflags |= ContextProfileFlags.CORE;
|
|
}
|
|
|
|
if (cpflags != 0)
|
|
{
|
|
SDL.GL.SetAttribute(ContextAttribute.CONTEXT_PROFILE_MASK, cpflags);
|
|
}
|
|
}
|
|
|
|
if (shareContext != null)
|
|
{
|
|
if (shareContext.IsCurrent)
|
|
{
|
|
SDL.GL.SetAttribute(ContextAttribute.SHARE_WITH_CURRENT_CONTEXT, 1);
|
|
}
|
|
else
|
|
{
|
|
Trace.WriteLine("Warning: SDL2 requires a shared context to be current before sharing. Sharing failed.");
|
|
}
|
|
}
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region GraphicsContextBase Members
|
|
|
|
public override void SwapBuffers()
|
|
{
|
|
SDL.GL.SwapWindow(Window.Handle);
|
|
}
|
|
|
|
public override void MakeCurrent(IWindowInfo window)
|
|
{
|
|
int result = 0;
|
|
if (window != null)
|
|
{
|
|
result = SDL.GL.MakeCurrent(window.Handle, SdlContext.Handle);
|
|
}
|
|
else
|
|
{
|
|
result = SDL.GL.MakeCurrent(IntPtr.Zero, IntPtr.Zero);
|
|
}
|
|
|
|
if (result < 0)
|
|
{
|
|
Debug.Print("SDL2 MakeCurrent failed with: {0}", SDL.GetError());
|
|
}
|
|
}
|
|
|
|
public override IntPtr GetAddress(string function)
|
|
{
|
|
return SDL.GL.GetProcAddress(function);
|
|
}
|
|
|
|
public override bool IsCurrent
|
|
{
|
|
get
|
|
{
|
|
return GraphicsContext.GetCurrentContext() == Context;
|
|
}
|
|
}
|
|
|
|
public override int SwapInterval
|
|
{
|
|
get
|
|
{
|
|
return SDL.GL.GetSwapInterval();
|
|
}
|
|
set
|
|
{
|
|
if (SDL.GL.SetSwapInterval(value) < 0)
|
|
{
|
|
Debug.Print("SDL2 failed to set swap interval: {0}", SDL.GetError());
|
|
}
|
|
}
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region IDisposable Members
|
|
|
|
void Dispose(bool manual)
|
|
{
|
|
if (!IsDisposed)
|
|
{
|
|
if (manual)
|
|
{
|
|
Debug.Print("Disposing {0}", GetType());
|
|
lock (SDL.Sync)
|
|
{
|
|
SDL.GL.DeleteContext(SdlContext.Handle);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
Debug.WriteLine("Sdl2GraphicsContext leaked, did you forget to call Dispose()?");
|
|
}
|
|
IsDisposed = true;
|
|
}
|
|
}
|
|
|
|
public override void Dispose()
|
|
{
|
|
Dispose(true);
|
|
GC.SuppressFinalize(this);
|
|
}
|
|
|
|
~Sdl2GraphicsContext()
|
|
{
|
|
Dispose(false);
|
|
}
|
|
|
|
#endregion
|
|
}
|
|
}
|
|
|