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Reload WGL entry points in WinGLContext()

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This fixes AccessViolationException when creating multiple contexts on
Intel hardware.
This commit is contained in:
Stefanos A. 2013-10-03 14:04:34 +02:00
parent c077d5c026
commit 3c867838e6
1 changed files with 8 additions and 1 deletions
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9
Source/OpenTK/Platform/Windows/WinGLContext.cs
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@ -64,7 +64,14 @@ namespace OpenTK.Platform.Windows
lock (LoadLock) lock (LoadLock)
{ {
if (!wgl_loaded) // On intel drivers, wgl entry points appear to change
// when creating multiple contexts. As a workaround,
// we reload Wgl entry points every time we create a
// new context - this solves the issue without any apparent
// side-effects (i.e. the old contexts can still be handled
// using the new entry points.)
// Sigh...
// if (!wgl_loaded)
{ {
// We need to create a temp context in order to load wgl extensions (e.g. for multisampling or GL3). // We need to create a temp context in order to load wgl extensions (e.g. for multisampling or GL3).
// We cannot rely on OpenTK.Platform.Wgl until we create the context and call Wgl.LoadAll(). // We cannot rely on OpenTK.Platform.Wgl until we create the context and call Wgl.LoadAll().