This was causing depth ordering issues on platforms that used an
unstable qsort implementation.

The recent changes for VTK have been accepted upstream.

I rebased and Surprise! Ken added line stippling after I'd
branched.

Adds an ActiveState ivar to vtkOpenGLGL2PSHelper to replace
Capturing. There are three possible states that vectorized
mappers/actors need to handle:
- Inactive: Render as normal. This really shouldn't happen.
- Background: Render pass to build the rasterized background image
              containing props that cannot be vectorized. Any
              vectorizable geometry should not be drawn.
- Capture: Render vectorizable props using the gl2ps APIs.

The FreeTypeTextMapper tests used to strip out object factories
that provided vtkTextMapper overrides. This prevented the (now
removed) vtkRenderingFreeTypeOpenGL module from hiding the
improved generic implementation in vtkTextMapper, which is what
the tests where exercising.

Now that vtkRenderingOpenGL2 overrides vtkTextMapper to provide
GL2PS export extensions, this code is breaking the tests by
removing all OpenGL2-specific classes from the object factory.

The offending outdated code has been removed.

Covers TextActor, TextActor3D, TextMapper, and anything else
that uses them internally.

Point sprites aren't support at the moment, but everything
else should work well at this point.

This method is not available on OSX otherwise.

- Allow GL2PS to work when there is no OpenGL context active.
  This is indicated by setting the bufferSize in
  gl2psBeginPage to zero.
- Expose gl2psAddPolyPrimitive. This lets us inject primitives
  directly into the gl2ps data structures via API calls. Also
  expose the primitive defines, and the definitions of
  GL2PSxyz, GL2PSrgba, and GL2PSvertex, which are needed for
  this method.
- Add gl2psForceRasterPos to emulate glRasterPos when there is
  no OpenGL context.

- Read file metadata for bounding box rather than running
  ghostscript. Ghostscript calculates a tight bounding box that
  treats white as transparent; thus, many of the rasterized
  files with white backgrounds ended up being differently sized
  when the contents changed. This required updating many
  baselines.
- Several mathtext baselines were updated, it appears the 'space'
  glyph was changed to be a bit wider.
- Centralize the code to rasterize/verify postscript files to
  CMake/vtkTestingGL2PS.cmake.

David Gobbi authored Jan 15, 2016 and Kitware Robot committed Jan 15, 2016

2941cb4c

 Make wrappers guess type of NULL as nullptr_t.

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !1088

Sean McBride authored Jan 15, 2016 and Kitware Robot committed Jan 15, 2016

e2574626

 Clarified comments in vtkMatrix4x4.h

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !1089

Ken Martin authored Jan 15, 2016 and Kitware Robot committed Jan 15, 2016

69f15167

 Fix a memory leak in the old OpenGL1 offscreen code

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !1083

Utkarsh Ayachit authored Jan 15, 2016 and Kitware Robot committed Jan 15, 2016

91c4f719

 Ensure HDF5_HL is found if available.

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Ben Boeckel <ben.boeckel@kitware.com>
Merge-request: !1078

Ken Martin authored Jan 15, 2016 and Kitware Robot committed Jan 15, 2016

c439fa04

 Fix RenderToImage test so it passes with (old) unsupported hardware.

Acked-by: Kitware Robot <kwrobot@kitware.com>
Reviewed-by: Ken Martin <ken.martin@kitware.com>
Merge-request: !1084

When the wrappers encounter NULL in a header file, specifically in the case
of "#define something NULL", it now treated as a value of type nullptr_t,
similar to nullptr itself.  This ensures that NULL will not be wrapped as
int, even if it is defined to be 0.

Sean McBride authored Jan 14, 2016 and Kitware Robot committed Jan 14, 2016

63095344

 Fix compile error with non-fully compliant C++11 environments

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !1087

The old offscreen code was leaking for win32 when iterating
between SetupMemoryRendering and ResuleScreenRendering

Sean McBride authored Jan 14, 2016 and Kitware Robot committed Jan 14, 2016

465da3ad

 Replace cube root macro with function.

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !1081

Sean McBride authored Jan 14, 2016 and Kitware Robot committed Jan 14, 2016

d4b4a19b

 Catch by reference

Acked-by: Kitware Robot <kwrobot@kitware.com>
Reviewed-by: David Gobbi <david.gobbi@gmail.com>
Reviewed-by: Brad King <brad.king@kitware.com>
Merge-request: !1077

Warned by clang-tidy misc-throw-by-value-catch-by-reference check.

Fixes clang-tidy misc-macro-parentheses warning.

I kept it private, instead of adding it to vtkMath,
because once we require C++11 we can just use std::cbrt.

David Gobbi authored Jan 13, 2016 and Kitware Robot committed Jan 13, 2016

5efcd8d2

 Bug 15934: vtkMetaImageWriter incorrect voxel spacing and origin

Acked-by: Kitware Robot <kwrobot@kitware.com>
Reviewed-by: Berk Geveci <berk.geveci@kitware.com>
Merge-request: !1079

The vtkMetaImageWriter's Write() method was getting the spacing and origin
from the input's data object before updating the data object.  As a result,
an incorrect spacing and origin was written to the file header.

Ken Martin authored Jan 13, 2016 and Kitware Robot committed Jan 13, 2016

d1910f24

 a few more memory leak coverity fixes etc

Acked-by: Kitware Robot <kwrobot@kitware.com>
Reviewed-by: Berk Geveci <berk.geveci@kitware.com>
Merge-request: !1076

Ben Boeckel authored Jan 12, 2016 and Kitware Robot committed Jan 12, 2016

8075b868

 docs: add documentation for third party changes

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: David Gobbi <david.gobbi@gmail.com>
Reviewed-by: Brad King <brad.king@kitware.com>
Merge-request: !1068

various coverity fixes