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[Mac] OpenGL 3.x/4.x require core profile flag

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SDL will fail to construct an OpenGL 3.x/4.x context on Mac OS X,
unless ContextProfileFlags.CORE is specified.

Fixes issue #44

Upstream enhancement request at
https://bugzilla.libsdl.org/show_bug.cgi?id=2342
This commit is contained in:
thefiddler 2014-01-09 23:36:28 +01:00
parent 7f64945079
commit a4d2a31386
1 changed files with 11 additions and 1 deletions
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12
Source/OpenTK/Platform/SDL2/Sdl2GraphicsContext.cs
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@ -157,6 +157,8 @@ namespace OpenTK.Platform.SDL2
int major, int minor,
GraphicsContextFlags flags)
{
ContextProfileFlags cpflags = 0;
if (mode.AccumulatorFormat.BitsPerPixel > 0)
{
SDL.GL.SetAttribute(ContextAttribute.ACCUM_ALPHA_SIZE, mode.AccumulatorFormat.Alpha);
@ -203,6 +205,15 @@ namespace OpenTK.Platform.SDL2
{
SDL.GL.SetAttribute(ContextAttribute.CONTEXT_MAJOR_VERSION, major);
SDL.GL.SetAttribute(ContextAttribute.CONTEXT_MINOR_VERSION, minor);
// Workaround for https://github.com/opentk/opentk/issues/44
// Mac OS X desktop OpenGL 3.x/4.x contexts require require
// ContextProfileFlags.Core, otherwise they will fail to construct.
if (Configuration.RunningOnMacOS && major >= 3 &&
(flags & GraphicsContextFlags.Embedded) == 0)
{
cpflags |= ContextProfileFlags.CORE;
}
}
if ((flags & GraphicsContextFlags.Debug) != 0)
@ -223,7 +234,6 @@ namespace OpenTK.Platform.SDL2
*/
{
ContextProfileFlags cpflags = 0;
if ((flags & GraphicsContextFlags.Embedded) != 0)
{
cpflags |= ContextProfileFlags.ES;