Re: [Chromium-dev] context type: UNDECIDED vs. CHROMIUM vs. NATIVE

[Greg H. <hu...@gm...>]

Ah yes, this seems familiar.  I definitely made some changes to the  
way that contexts were created/deleted on Windows.  This had to do  
with the fact that contexts for pbuffers are created with a separate  
function on Windows which was only partially supported in Chromium  
(it sort of worked but didn't add the context to the hashtable  
because there was no "window info" when the special  
wglMakeContextCurrent function was called).

On May 25, 2005, at 6:05 PM, ma...@co... wrote:

> Brian,
>
> Thanks for the explanation - that's very helpful.
>
>
>> The only time a context should be in the UNDECIDED state is when it's
>> been created, but has never been made current.  Perhaps the WGL code
>> is missing an assignment to set the context's type in wglMakeCurrent.
>>
>
> What if it's never made current!?
>
> Apparently, although it may be "wrong", what many (or at least 2)  
> "real world"
> apps do is create a context, check some capabilities, and if it's  
> not up to
> snuff, the context is deleted, without ever being made current.
>
> So, stubDestroyContext gets the context and does nothing to it,  
> since the
> context type is UNDECIDED, and as a result the window stays up...
>
>
> **So, what should stubDestroyContext do when the type is UNDECIDED?**
>
>
> Thanks,
> Jon
>
>
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--
Greg Humphreys, Assistant Professor
Department of Computer Science, University of Virginia
http://www.cs.virginia.edu/~humper/