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* Egl.cs:

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* EglContext.cs:
* EglGraphicsMode.cs: Added a parameter to indicate which ES renderer
  version we wish to use. Fixes issue [#2247]: "CreateEGLGraphicsMode
  should select the correct renderer".
This commit is contained in:
the_fiddler 2011-01-18 00:29:38 +00:00
parent d22c7312d9
commit 774374efc0
3 changed files with 34 additions and 11 deletions
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11
Source/OpenTK/Platform/Egl/Egl.cs
View file

@ -2,7 +2,7 @@
//
// The Open Toolkit Library License
//
// Copyright (c) 2006 - 2009 the Open Toolkit library.
// Copyright (c) 2006 - 2011 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
@ -41,6 +41,15 @@ namespace OpenTK.Platform.Egl
using EGLSurface = IntPtr;
using EGLClientBuffer = IntPtr;
[Flags]
enum RenderableFlags
{
ES = Egl.OPENGL_ES_BIT,
ES2 = Egl.OPENGL_ES2_BIT,
GL = Egl.OPENGL_BIT,
VG = Egl.OPENVG_BIT,
}
static partial class Egl
{
public const int VERSION_1_0 = 1;

8
Source/OpenTK/Platform/Egl/EglContext.cs
View file

@ -61,7 +61,13 @@ namespace OpenTK.Platform.Egl
WindowInfo = window;
Mode = new EglGraphicsMode().SelectGraphicsMode(mode.ColorFormat, mode.Depth, mode.Stencil, mode.Samples, mode.AccumulatorFormat, mode.Buffers, mode.Stereo);
// Select an EGLConfig that matches the desired mode. We cannot use the 'mode'
// parameter directly, since it may have originated on a different system (e.g. GLX)
// and it may not support the desired renderer.
Mode = new EglGraphicsMode().SelectGraphicsMode(mode.ColorFormat,
mode.Depth, mode.Stencil, mode.Samples, mode.AccumulatorFormat,
mode.Buffers, mode.Stereo,
major > 1 ? RenderableFlags.ES2 : RenderableFlags.ES);
if (!Mode.Index.HasValue)
throw new GraphicsModeException("Invalid or unsupported GraphicsMode.");
IntPtr config = Mode.Index.Value;

26
Source/OpenTK/Platform/Egl/EglGraphicsMode.cs
View file

@ -36,20 +36,28 @@ namespace OpenTK.Platform.Egl
{
#region IGraphicsMode Members
public GraphicsMode SelectGraphicsMode(ColorFormat color, int depth, int stencil, int samples, ColorFormat accum, int buffers, bool stereo)
public GraphicsMode SelectGraphicsMode(ColorFormat color, int depth, int stencil,
int samples, ColorFormat accum, int buffers, bool stereo)
{
// According to the EGL specs, the ES flag should select ES 1.0 or higher, which
// makes sense as a default. EglContext.cs checks
return SelectGraphicsMode(color, depth, stencil, samples, accum, buffers, stereo,
RenderableFlags.ES);
}
#endregion
#region Public Members
public GraphicsMode SelectGraphicsMode(ColorFormat color, int depth, int stencil,
int samples, ColorFormat accum, int buffers, bool stereo,
RenderableFlags renderable_flags)
{
IntPtr[] configs = new IntPtr[1];
int[] attribList = new int[]
{
//Egl.SURFACE_TYPE, Egl.WINDOW_BIT,
// Context creation will fail unless one of these bits is set. Hopefully, setting all bits will not
// cause any ugly side-effects.
// If this doesn't work, we'll have to use Egl.GetConfigs and implement our own selection logic,
// because we the exact ES version is not known when selecting a graphics context.
// (See WinGraphicsMode.cs for an selection logic implementation).
// Todo: add Egl.OPENVG_BIT here if we ever add OpenVG bindings.
Egl.RENDERABLE_TYPE, Egl.OPENGL_ES_BIT | Egl.OPENGL_ES2_BIT | Egl.OPENGL_BIT,
Egl.RENDERABLE_TYPE, (int)renderable_flags,
Egl.RED_SIZE, color.Red,
Egl.GREEN_SIZE, color.Green,