Mesa3D Graphics Library (Bleeding edge ray tracing branches)
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Eric Anholt e4e393a65c freedreno/a6xx: Disable sample averaging on depth/stencil resolves.
From the GLES 3.2 spec:

"If the source formats are integer types or stencil values, a single
sample’s value is selected for each pixel. If the source formats are
floating-point or normalized types, the sample values for each pixel are
resolved in an implementation-dependent manner. If the source formats are
depth values, sample values are resolved in an implementation-dependent
manner where the result will be between the minimum and maximum depth
values in the pixel."

For Z24S8 we were doing an average, which would be invalid for the stencil
data, and apparently the CTS didn't catch that.  For Z32F, our averaging
was technically legal, but given the Vulkan spec's requirement of sample 0
support but not sample average support for depth and stencil resolves, it
suggests that our averaging behavior was unusual.  Let's not spend power
on producing surprising results.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9661>
2021-03-22 19:07:08 +00:00
.gitlab/issue_templates gitlab: add RADV bug report template 2020-12-18 08:03:04 +00:00
.gitlab-ci ci/bare-metal: Move the db820c lockup detect to the right boot script. 2021-03-19 22:07:57 +00:00
bin bin/post_version: convert the csv.reader into a concrete list 2021-01-21 23:22:36 +00:00
build-support
docs turnip: expose several already implemented extensions 2021-03-22 18:20:57 +00:00
doxygen
include include/drm-uapi: bump AMDGPU headers 2021-02-26 18:05:36 +01:00
src freedreno/a6xx: Disable sample averaging on depth/stencil resolves. 2021-03-22 19:07:08 +00:00
subprojects d3d12: Use DirectX-Headers wrap for d3d12.h 2020-12-16 16:25:54 +00:00
.dir-locals.el
.editorconfig docs: fixup indentation 2020-01-18 11:39:32 +01:00
.gitignore intel/tools: Add unit tests for assembler 2019-05-07 14:33:48 -07:00
.gitlab-ci.yml ci/lavapipe: split out lavapipe ci into lavapipe dir 2021-03-19 16:21:26 +00:00
.mailmap .mailmap: fix email for Daniel Schürmann 2021-03-22 18:56:22 +00:00
.travis.yml scons: Remove. 2021-03-20 10:38:55 +00:00
Android.common.mk meson, util: Make zlib optional again 2021-03-19 19:33:59 +00:00
Android.mk meson/gallium: Add an option to not use LLVM for gallium draw module 2021-02-25 17:48:16 +00:00
CleanSpec.mk CleanSpec.mk: Remove HOST_OUT_release 2018-08-02 15:42:40 -06:00
README.rst README: update references to internal docs 2020-06-13 10:42:01 +00:00
REVIEWERS scons: Remove. 2021-03-20 10:38:55 +00:00
VERSION VERSION: bump for 21.1.0 cycle 2021-01-13 09:46:19 -08:00
meson.build scons: Remove. 2021-03-20 10:38:55 +00:00
meson_options.txt Revert "meson: add enable-glcpp-tests option" 2021-03-19 08:50:38 +00:00

README.rst

`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 `Freenode's #dri-devel
<irc://chat.freenode.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.