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Made GraphicsMode query non-eager. The GraphicsMode will only be queried on first access of its Index property, for example when creating an X11 window or a new GraphicsContext.

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This commit is contained in:
the_fiddler 2009-08-15 16:03:54 +00:00
parent 59d6ad7b3a
commit ffdddf86d6
1 changed files with 32 additions and 33 deletions
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65
Source/OpenTK/Graphics/GraphicsMode.cs
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@ -19,7 +19,7 @@ namespace OpenTK.Graphics
ColorFormat color_format, accumulator_format;
int depth, stencil, buffers, samples;
bool stereo;
IntPtr index; // The id of the pixel format or visual.
IntPtr? index; // The id of the pixel format or visual.
static GraphicsMode defaultMode;
static IGraphicsMode implementation;
@ -53,36 +53,14 @@ namespace OpenTK.Graphics
if (buffers <= 0) throw new ArgumentOutOfRangeException("buffers", "Must be greater than zero.");
if (samples < 0) throw new ArgumentOutOfRangeException("samples", "Must be greater than, or equal to zero.");
// This method will search for the closest
if (index == IntPtr.Zero)
{
GraphicsMode mode;
lock (mode_selection_lock)
{
mode = implementation.SelectGraphicsMode(color, depth, stencil, samples, accum, buffers, stereo);
}
this.Index = mode.Index;
this.ColorFormat = mode.ColorFormat;
this.Depth = mode.Depth;
this.Stencil = mode.Stencil;
this.Samples = mode.Samples;
this.AccumulatorFormat = mode.AccumulatorFormat;
this.Buffers = mode.Buffers;
this.Stereo = mode.Stereo;
}
else
{
this.Index = index;
this.ColorFormat = color;
this.Depth = depth;
this.Stencil = stencil;
this.Samples = samples;
this.AccumulatorFormat = accum;
this.Buffers = buffers;
this.Stereo = stereo;
}
this.Index = index;
this.ColorFormat = color;
this.Depth = depth;
this.Stencil = stencil;
this.Samples = samples;
this.AccumulatorFormat = accum;
this.Buffers = buffers;
this.Stereo = stereo;
}
#endregion
@ -310,8 +288,29 @@ namespace OpenTK.Graphics
#region internal IntPtr Index
internal IntPtr Index
{
get { return index; }
{
get
{
if (index == null)
{
GraphicsMode mode;
lock (mode_selection_lock)
{
mode = implementation.SelectGraphicsMode(ColorFormat, Depth, Stencil, Samples, AccumulatorFormat, Buffers, Stereo);
}
Index = mode.Index;
ColorFormat = mode.ColorFormat;
Depth = mode.Depth;
Stencil = mode.Stencil;
Samples = mode.Samples;
AccumulatorFormat = mode.AccumulatorFormat;
Buffers = mode.Buffers;
Stereo = mode.Stereo;
}
return index.Value;
}
set { index = value; }
}