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[GLControl] Warn when accessing GL properties on non-current context

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This commit is contained in:
thefiddler 2014-01-26 11:08:08 +01:00
parent c9a86a63ab
commit b9426006ef
1 changed files with 12 additions and 0 deletions
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12
Source/GLControl/GLControl.cs
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@ -139,6 +139,15 @@ namespace OpenTK
} }
} }
[Conditional("DEBUG")]
void ValidateContext(string message)
{
if (!Context.IsCurrent)
{
Debug.Print("[GLControl] Attempted to access {0} on a non-current context. Results undefined.", message);
}
}
void ValidateState() void ValidateState()
{ {
if (IsDisposed) if (IsDisposed)
@ -400,6 +409,7 @@ namespace OpenTK
} }
ValidateState(); ValidateState();
ValidateContext("VSync");
return Context.SwapInterval != 0; return Context.SwapInterval != 0;
} }
set set
@ -415,6 +425,7 @@ namespace OpenTK
} }
ValidateState(); ValidateState();
ValidateContext("VSync");
Context.SwapInterval = value ? 1 : 0; Context.SwapInterval = value ? 1 : 0;
} }
} }
@ -468,6 +479,7 @@ namespace OpenTK
public Bitmap GrabScreenshot() public Bitmap GrabScreenshot()
{ {
ValidateState(); ValidateState();
ValidateContext("GrabScreenshot()");
Bitmap bmp = new Bitmap(this.ClientSize.Width, this.ClientSize.Height); Bitmap bmp = new Bitmap(this.ClientSize.Width, this.ClientSize.Height);
System.Drawing.Imaging.BitmapData data = System.Drawing.Imaging.BitmapData data =