Array indices weren't accounting for scanlines starting at non-0
indices.  A couple loops used an index before checking if it was
still within bounds.

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Later versions of Mesa are needed to get advanced OpenGL
functionality, namely OpenGL 2.0.

Mesa 7.5 includes some of my work to get Mesa to build easily on
the platforms we care about.  We now use Mesa's "install" target,
instead of trying to roll our own.

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Ensures that only parallel engines will get caught by this.
Otherwise, components like the viewer could lock here, which can
get pretty annoying.

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Outside of the engine, we don't know how many displays we'll have,
and which ones are hardware contexts.  External code (in
particular the volume plot) would use this callback object to
figure out what kind of renderers to create.

So we ignore the existing configuration and set hw/sw rendering
based on what we've figured out during initialization.

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Lets us easily figure out what kind of display gets created.  This
information can be inferred from other messages, but I
semi-recently tracked down a bug where two modules disagreed about
this bit of state.  This would allow one to very easily notice
when that occurs.

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The way Tuvok includes itself is a lot simpler now.  Also it
caches textures per-context, and uses Qt to determine which
context it is in for that.  Thus we need to link in QtOpenGL.

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We could inherit a bad setting from the user's environment, which
might prevent some packages from building.

git-svn-id: http://visit.ilight.com/svn/visit/trunk/src@7981 18c085ea-50e0-402c-830e-de6fd14e8384

1) I updated the build and install notes for release 1.12.

2) I corrected a messed up tag in the 1.12.0 release notes, as well as
   modifying recently added content for consistency.



git-svn-id: http://visit.ilight.com/svn/visit/trunk/src@7979 18c085ea-50e0-402c-830e-de6fd14e8384

Merged RC changes into trunk. Franklin config change adding queues. Also picked up release note changes.

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1) I updated the 1.12 release notes with my changes. I also corrected and
   cleaned up the release notes so that they would be more consistent.

2) I merged some files from someone else from the 1.12RC to the trunk.



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By request.

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Merging 1.12RC to trunk: changing error message for env-make var collision check to indicate the override switch can be set in the env.

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Merging 1.12RC to trunk: adding ability to override env-make var collision check; fixing material search option for NASTRAN plugin

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I added a parallel interactive pdebug host profile for hera to the
llnl_open visit config file.



git-svn-id: http://visit.ilight.com/svn/visit/trunk/src@7928 18c085ea-50e0-402c-830e-de6fd14e8384

1) I deleted the Nek3D database reader since it has been superceded by the
   Nek5000 reader.

2) I applied a fix from Hank Childs for a bug in the contour filter, where
   it didn't specify a variable when it was getting an interval tree.  This
   resulted in it sometimes getting the wrong interval tree and producing
   incorrect results.  A specific example is when you create a pseudocolor
   plot of one variable and then apply an iso surface operator of another
   variable.



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I made the notepad take up all of the Main window for short displays (<1024 pixels) and I made the Main window controls post into the area as a tab. This enables window posting to work on short displays. We used to disable the notepad entirely on such short displays. I've received some vocal complaints about this recently so I decided to change what we did. The Main window gets assembled normally if the number of vertical pixels is >= 1024.


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He's in the list of `always send me a log' people, but it was
going to his old address.

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We'd like to make IceT the default, thus that's how we should test
it.

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Also copy a CXXFLAGS define into CFLAGS.

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Merge from 1.12.


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Merged 1.12RC changes into trunk: Updates for Franklin. Pixie file format ignore Vizschema files. build_visit use version of cmake in install dir not build dir.

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Merged 1.12RC changes into trunk: Use libtcmalloc_minimal instead of libtcmalloc. Fix invalid cycle display for Chombo plugin. Update configuration for harlow.

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