static void SetGLAttributes(GraphicsMode mode,
IGraphicsContext shareContext,
int major, int minor,
GraphicsContextFlags flags)
{
ContextProfileFlags cpflags = 0;
ClearGLAttributes();
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)
{
// 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;
// According to https://developer.apple.com/graphicsimaging/opengl/capabilities/GLInfo_1075_Core.html
// Mac OS X supports 3.2+. Indeed, requesting 3.0 or 3.1 results in failure.
if (major == 3 && minor < 2)
{
minor = 2;
}
}
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);
* }
*/
{
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.");
}
}
}
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.");
}
}
}
public static int SetAttribute(ContextAttribute attr, ContextProfileFlags value)
{
return SetAttribute(attr, (int)value);
}
public static int SetAttribute(ContextAttribute attr, ContextProfileFlags value)
{
return(SetAttribute(attr, (int)value));
}
