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List:       vbox-dev
Subject:    Re: [vbox-dev] Clutter mutiple stage problem in vbox
From:       Leonid <leonid.lobachev () sun ! com>
Date:       2010-02-24 10:40:05
Message-ID: loom.20100224T113536-255 () post ! gmane ! org
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Tian, Jun J <jun.j.tian@...> writes:

> 
> According to the source code of GL implementaion in virtualbox. It seems that 
each GL context only
> including one drawable(which represented by WindowInfo in vbox) and can 
process only one WindowInfo by
> Chromium SPU. But clutter program with multiple stage have two GL drawable
(each stage is a drawable)
> binding to a single GL context. It means rebinding context to another window 
and causes assert fail in
> MakeCurrent. However, I have tried to process one stage by SPU and other 
stages by native, but it makes
> segment fault in vbox. 
> 
> Whether vbox can process multiple GL drawable in one GL context? 
> 
> 

The issue you've mentioned is already fixed, see http://www.virtualbox.org/
ticket/4598.

Just checked the source you've provided and it doesn't assert, although exactly 
like in the ticket above I could only see 3 white windows not sure if it's 
expected output or not.

Leonid.


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