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IDProjectCategoryView StatusDate SubmittedLast Update
0010028VTK(No Category)public2009-12-11 05:552016-08-12 09:55
ReporterPietro Cerutti 
Assigned ToKitware Robot 
PrioritynormalSeveritycrashReproducibilityalways
StatusclosedResolutionmoved 
PlatformOSOS Version
Product Version 
Target VersionFixed in Version 
Project
Type
Summary0010028: [patch] reason for the bug in /Bug/view.php?id=8554
Descriptionsee 0008554 for full details of the problem.

The reason is that gl* functions are resolved in libGL instead of libOSMesa, because the order in which the libraries are listed in vtkRendering_LIB_DEPENDS is incorrect.
A patch to Rendering/CMakeLists.txt against CVS is attached.
Steps To Reproduce
Additional Information
TagsNo tags attached.
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Attached Filesdiff Rendering_CMakeLists.txt.diff (3,506) 2009-12-11 05:55
https://www.vtk.org/Bug/file/7712/Rendering_CMakeLists.txt.diff
Issue History
Date ModifiedUsernameFieldChange
2009-12-11 05:55Pietro CeruttiNew Issue
2009-12-11 05:55Pietro CeruttiFile Added: Rendering_CMakeLists.txt.diff
2009-12-11 11:37François BertelStatusbacklog => tabled
2009-12-11 11:37François BertelAssigned To => François Bertel
2009-12-11 11:47François BertelNote Added: 0018817
2009-12-11 11:58Pietro CeruttiNote Added: 0018818
2009-12-14 03:43Pietro CeruttiNote Added: 0018841
2010-09-07 13:44François BertelAssigned ToFrançois Bertel =>
2011-06-16 13:11Zack GalbreathCategory => (No Category)
2016-08-12 09:55Kitware RobotNote Added: 0037127
2016-08-12 09:55Kitware RobotStatusexpired => closed
2016-08-12 09:55Kitware RobotResolutionopen => moved
2016-08-12 09:55Kitware RobotAssigned To => Kitware Robot

Notes
(0018817)
François Bertel   
2009-12-11 11:47   
In bug 0008554, there is no use of OSMesa so this is not the reason of bug 0008554.

Nevertheless, the patch addresses a valuable issue. Can you describe your context (in which case you are using OSMesa, hardware (Mac,PC), OS, ... )


Looking at this blog http://www.gnashdev.org/?q=node/46 [^] I wonder if it even makes sense to link both with libOSMesa and libGL. It sounds there are just conflicting.
(0018818)
Pietro Cerutti   
2009-12-11 11:58   
Yes you are right, I had misunderstood the problem in 0008554. It just happened to segfault at the same location.

I'm on Ubuntu 9.10 on an iMac and I use OSMesa to render off screen in a console-based program. I will investigate whether removing GL at all when linking against OSMesa works. I'll get back to you monday morning (CET).

Thanks.
(0018841)
Pietro Cerutti   
2009-12-14 03:43   
ok, the problem is when you need both an off-screen window and an in-screen window (say, XOpenGL). In that case, you need both OSMesa and GL. For this reason, we cannot mutually exclude the two libraries.
I guess the solution would be indeed to swap the positions (OSMesa first, then GL). This way, the common functions are resolved in OSMesa, and the remaining ones in GL.
(0037127)
Kitware Robot   
2016-08-12 09:55   
Resolving issue as `moved`.

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