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Juan A. Suarez Romero 991396e823 v3d: fix line coords with perspective projection
The algorithm used to rendering smooth lines worked under the assumption
that line coords were in the [0, 1] range. This was correct when using
an orthogonal projection, but not when using a perspective projection.

With a perspective projection (where the value for 1/Wc set in the VPM
is not 1.0), line coords values are also affected by this projection, so
the values are not in this range.

To deal with this, we normalize the line coords using the Wc value so
the range becomes [0, 1], and the smooth line rendering works as
expected.

Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/10496
Fixes: ee4d51f8b2 ("v3d: Add a lowering pass for line smoothing")
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28072>
(cherry picked from commit 69fbd5cb90)
2024-03-11 16:43:05 +00:00
.ci-farms Revert "ci: lima farm is down" 2024-01-17 21:39:02 +00:00
.ci-farms-disabled Revert "ci: lima farm is down" 2024-01-17 21:39:02 +00:00
.github/workflows add zink to macos ci 2022-11-22 19:04:13 +00:00
.gitlab gitlab: make commit more commit-like formatted 2023-11-09 17:30:07 +00:00
.gitlab-ci ci: Adds /usr/local/bin to PATH at piglit-traces.sh 2024-03-07 20:21:13 +00:00
android android.mk: Add option to pass arbitrary parameters to meson 2023-12-13 20:09:37 +00:00
bin symbols-check: Add _GLOBAL_OFFSET_TABLE_ 2024-01-10 19:25:05 +00:00
build-support
docs docs: add sha256sum for 24.0.2 2024-02-28 18:48:41 +00:00
include intel/dev: update DG2 device names 2024-03-07 20:21:15 +00:00
src v3d: fix line coords with perspective projection 2024-03-11 16:43:05 +00:00
subprojects meson: upgrade zlib wrap to 1.3.1 2024-02-06 22:09:27 +00:00
.clang-format meson: enable the clang-format target 2023-05-29 11:57:08 +00:00
.clang-format-ignore ci: enforce formatting for RADV & ACO 2023-06-16 19:59:52 +00:00
.clang-format-include etnaviv: Add isaspec support 2023-12-16 14:34:18 +00:00
.dir-locals.el
.editorconfig glsl: Fixes ident issue in glsl_parser.yy and update editorconfig for it 2022-12-16 19:02:17 +00:00
.git-blame-ignore-revs freedreno: Add reformatting commits to .git-blame-ignore-revs 2023-09-22 02:07:36 +00:00
.gitattributes gitlab: Highlight .cl as C 2023-11-02 11:37:46 +00:00
.gitignore .gitignore: add VSCode and VSCodium 2022-11-21 23:09:30 +00:00
.gitlab-ci.yml ci: add r300 RV530 dEQP gles2 CI job 2024-01-08 16:19:20 +00:00
.graphqlrc.yml ci/bin: Add utility to find jobs dependencies 2022-08-03 23:10:37 +00:00
.mailmap .mailmap: add an alias for Christian Gmeiner 2023-06-08 09:16:25 +00:00
.pick_status.json v3d: fix line coords with perspective projection 2024-03-11 16:43:05 +00:00
CODEOWNERS CODEOWNERS: Add @flynnjiang for VirGL video 2023-08-23 08:35:08 +00:00
meson.build meson: bump the minimal required vdpau version to 1.4 2024-03-07 20:21:13 +00:00
meson_options.txt meson: Add option to ignore artificial Android limitations 2023-12-13 20:09:37 +00:00
README.rst
VERSION VERSION: bump for 24.0.2 2024-02-28 18:29:18 +00:00

`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.