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Timur Kristóf c52e6a9463 ac/nir/cull: Accept NaN and +/- Inf in face culling.
When the determinant that we use for calculating triangle area
is NaN, it's not possible to decide the facing of the triangle.

This can happen when a coordinate of one of the triangle's vertices
is INFINITY. It's better to just accept these triangles in the shader
and let the PA deal with them.

Let's do the same for +/- Infinity too.
Though we haven't seen this yet, it may be troublesome as well.

Fixes: 651a3da1b5
Closes: #5470
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13299>
(cherry picked from commit 783f8f728c)
2021-10-14 09:03:48 -07:00
.gitlab/issue_templates issue_templates/Bug Report: Rename master branch to main 2021-05-05 12:20:11 -07:00
.gitlab-ci CI: Update Windows quick_gl baseline for mysterious new passes 2021-08-18 15:04:03 -07:00
android AOSP: Update timestamps of target binaries 2021-08-16 11:40:38 -07:00
bin pick-ui: show commit date 2021-08-12 10:06:57 -07:00
build-support configure: commit test files 2017-10-16 16:32:43 -07:00
docs docs" Add SHA256 sum for mesa 21.2.3 2021-09-29 13:17:23 -07:00
include crocus: Make the driver loader use PCI IDs for crocus 2021-07-03 06:34:33 +02:00
src ac/nir/cull: Accept NaN and +/- Inf in face culling. 2021-10-14 09:03:48 -07:00
subprojects util: Perfetto SDK v15.0 2021-05-07 13:41:38 +00:00
.dir-locals.el
.editorconfig editorconfig: Use 3-space tabs for .rst 2021-06-22 17:37:55 +00:00
.gitignore intel/tools: Add unit tests for assembler 2019-05-07 14:33:48 -07:00
.gitlab-ci.yml ci: Drop "success" job 2021-08-05 09:25:17 -07:00
.mailmap mailmap: Add two more lines for Alyssa Rosenzweig 2021-07-12 23:45:34 +00:00
.pick_status.json ac/nir/cull: Accept NaN and +/- Inf in face culling. 2021-10-14 09:03:48 -07:00
.travis.yml travis: Download XQuartz from GitHub. 2021-05-29 10:25:16 +00:00
meson.build meson: Remove duplicate xvmc in build summary. 2021-08-13 10:28:38 -07:00
meson_options.txt meson: allow egl_native_platform to be specified 2021-07-26 12:01:54 -07:00
README.rst docs: promote #dri-devel on oftc over freenode 2021-05-24 09:21:48 +00:00
REVIEWERS Fix up leftover "state_trackers" references to "frontends" 2021-07-02 07:35:05 +00:00
VERSION VERSION: bump for 21.2.3 release 2021-09-29 12:41:44 -07:00

`Mesa <https://mesa3d.org>`_ - The 3D Graphics Library
======================================================


Source
------

This repository lives at https://gitlab.freedesktop.org/mesa/mesa.
Other repositories are likely forks, and code found there is not supported.


Build & install
---------------

You can find more information in our documentation (`docs/install.rst
<https://mesa3d.org/install.html>`_), but the recommended way is to use
Meson (`docs/meson.rst <https://mesa3d.org/meson.html>`_):

.. code-block:: sh

  $ mkdir build
  $ cd build
  $ meson ..
  $ sudo ninja install


Support
-------

Many Mesa devs hang on IRC; if you're not sure which channel is
appropriate, you should ask your question on `OFTC's #dri-devel
<irc://irc.oftc.net/dri-devel>`_, someone will redirect you if
necessary.
Remember that not everyone is in the same timezone as you, so it might
take a while before someone qualified sees your question.
To figure out who you're talking to, or which nick to ping for your
question, check out `Who's Who on IRC
<https://dri.freedesktop.org/wiki/WhosWho/>`_.

The next best option is to ask your question in an email to the
mailing lists: `mesa-dev\@lists.freedesktop.org
<https://lists.freedesktop.org/mailman/listinfo/mesa-dev>`_


Bug reports
-----------

If you think something isn't working properly, please file a bug report
(`docs/bugs.rst <https://mesa3d.org/bugs.html>`_).


Contributing
------------

Contributions are welcome, and step-by-step instructions can be found in our
documentation (`docs/submittingpatches.rst
<https://mesa3d.org/submittingpatches.html>`_).

Note that Mesa uses gitlab for patches submission, review and discussions.