[Mesa-dev] [Bug 71363] line rendering with --with-osmesa-bits=32

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=71363

GitLab Migration User  changed:

   What|Removed |Added

 Resolution|--- |MOVED
 Status|NEW |RESOLVED

--- Comment #9 from GitLab Migration User  ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance: https://gitlab.freedesktop.org/mesa/mesa/issues/877.

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[Mesa-dev] [Bug 71363] line rendering with --with-osmesa-bits=32

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=71363

Timothy Arceri  changed:

   What|Removed |Added

  Component|Mesa core   |Drivers/OSMesa

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[Mesa-dev] [Bug 71363] line rendering with --with-osmesa-bits=32

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=71363

--- Comment #6 from burlen burlen.lor...@gmail.com ---
Comment on attachment 88866
  -- https://bugs.freedesktop.org/attachment.cgi?id=88866
osmesa patch to test

Review of attachment 88866:
-

The patch made no difference. I only tested the affected classes and not all of
VTK.

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[Mesa-dev] [Bug 71363] line rendering with --with-osmesa-bits=32

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=71363

--- Comment #7 from burlen burlen.lor...@gmail.com ---
Created attachment 88901
  -- https://bugs.freedesktop.org/attachment.cgi?id=88901action=edit
apitrace from the failing bar chart test

The apitrace developers shared a patch that allows the tool to work with
OSMesa.

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[Mesa-dev] [Bug 71363] line rendering with --with-osmesa-bits=32

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=71363

--- Comment #8 from burlen burlen.lor...@gmail.com ---
The bug can be reproduced using VTK built against OSMesa. The following shows
how I configured Mesa and VTK.


# Mesa config
./configure CXXFLAGS=-O2 -g CFLAGS=-O2 -g --disable-xvmc --disable-glx
--disable-dri --with-dri-drivers= --with-gallium-drivers=
--enable-texture-float --disable-shared-glapi --disable-egl
--with-egl-platforms= --enable-osmesa --with-osmesa-bits=32
--enable-gallium-llvm=no --prefix=/work/apps/mesa/devel/classic



#!/bin/bash
# VTK config
MESA=$1
shift

BITS=$1
shift

cmake \
  -DCMAKE_BUILD_TYPE=Debug \
  -DVTK_DEBUG_LEAKS=ON \
  -DBUILD_SHARED_LIBS=ON \
  -DBUILD_TESTING=ON \
  -DVTK_USE_X=OFF \
  -DVTK_OPENGL_HAS_OSMESA=ON \
  -DOPENGL_INCLUDE_DIR=$MESA/include \
  -DOPENGL_gl_LIBRARY=$MESA/lib/libOSMesa$BITS\.so \
  -DOPENGL_xmesa_INCLUDE_DIR=$MESA/include \
  -DOSMESA_INCLUDE_DIR=$MESA/include \
  -DOSMESA_LIBRARY=$MESA/lib/libOSMesa$BITS\.so \
  -DVTK_DATA_STORE=/work/VTK/VTKExternalData \
  $*

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[Mesa-dev] [Bug 71363] line rendering with --with-osmesa-bits=32

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=71363

--- Comment #1 from burlen burlen.lor...@gmail.com ---
Created attachment 88860
  -- https://bugs.freedesktop.org/attachment.cgi?id=88860action=edit
correct baseline image

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[Mesa-dev] [Bug 71363] line rendering with --with-osmesa-bits=32

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=71363

burlen burlen.lor...@gmail.com changed:

   What|Removed |Added

  Attachment #88859|0   |1
is obsolete||

--- Comment #2 from burlen burlen.lor...@gmail.com ---
Created attachment 88861
  -- https://bugs.freedesktop.org/attachment.cgi?id=88861action=edit
rendered with osmesa (bug)

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[Mesa-dev] [Bug 71363] line rendering with --with-osmesa-bits=32

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=71363

--- Comment #3 from burlen burlen.lor...@gmail.com ---
Created attachment 88862
  -- https://bugs.freedesktop.org/attachment.cgi?id=88862action=edit
diff

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[Mesa-dev] [Bug 71363] line rendering with --with-osmesa-bits=32

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=71363

--- Comment #4 from Brian Paul bri...@vmware.com ---
I'm guessing it's a fragment Z interpolation issue.  Can you provide some info
about:
* does the test use GL_DEPTH_TEST?
* Any calls to glDepthRange()?
* What are the vertex Z values (zeros?)
* Using glPolygonOffset?

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[Mesa-dev] [Bug 71363] line rendering with --with-osmesa-bits=32

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=71363

--- Comment #5 from Brian Paul bri...@vmware.com ---
Created attachment 88866
  -- https://bugs.freedesktop.org/attachment.cgi?id=88866action=edit
osmesa patch to test

Can you try this patch?

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