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Danylo Piliaiev 229bd7b9b9 freedreno: Describe LRZ feedback mechanism
Some draws do write depth but cannot contribute to LRZ during the BINNING pass
e.g. when fragment shader has "discard" in it, however they can contribute to
LRZ during the RENDERING pass via LRZ feedback meachanism. This may allow the
draws that follow to depth test against the updated LRZ, this is especially
important if such "bad" draws were at the start of the renderpass.

LRZ feedback happens during the RENDERING pass when LRZ_FEEDBACK_ZMODE_MASK
is set, if draw has a6xx_ztest_mode that has corresponding flag set in
LRZ_FEEDBACK_ZMODE_MASK - its depth values would be used for feedback.

LRZ feedback alongside with LRZ testing also works during sysmem rendering.

Signed-off-by: Danylo Piliaiev <dpiliaiev@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25345>
2024-06-26 15:53:51 +00:00
.ci-farms Revert "ci: lima farm maintenance" 2024-06-18 19:13:27 +00:00
.ci-farms-disabled Revert "ci: lima farm maintenance" 2024-06-18 19:13:27 +00:00
.github/workflows add zink to macos ci 2022-11-22 19:04:13 +00:00
.gitlab gitlab: Reference hang debugging documenttion 2024-05-16 09:47:53 +00:00
.gitlab-ci ci: build docs using meson 2024-06-25 10:59:54 +00:00
android nouveau: import libdrm_nouveau 2024-03-13 15:21:07 +00:00
bin zink: Always include renderdoc_app.h 2024-06-20 07:02:15 +00:00
build-support meson: move tsan-blacklist.txt to build-support with the other build support files 2024-05-01 07:05:12 +00:00
docs freedreno: Describe LRZ feedback mechanism 2024-06-26 15:53:51 +00:00
include zink: Always include renderdoc_app.h 2024-06-20 07:02:15 +00:00
src freedreno: Describe LRZ feedback mechanism 2024-06-26 15:53:51 +00:00
subprojects subprojects: uprev perfetto to v45.0 2024-05-21 20:02:00 +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 teflon: Initial commit 2024-01-24 10:02:10 +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 .cache folder 2024-05-13 14:32:12 +00:00
.gitlab-ci.yml ci/image-tags: rename DEBIAN_X86_64_TEST_*_TAG to drop the x86 mention 2024-05-23 06:00:50 +02:00
.graphqlrc.yml ci/bin: Add utility to find jobs dependencies 2022-08-03 23:10:37 +00:00
.mailmap mailmap: update rohan's primary email address 2024-06-19 09:06:15 +00:00
.mr-label-maker.yml mr-label-maker: Separate freedreno and turnip labels 2024-06-14 18:47:15 +00:00
CODEOWNERS CODEOWNERS: update Imagination maintainers 2024-01-19 10:26:15 +00:00
meson.build meson: build html-docs 2024-06-25 10:59:54 +00:00
meson_options.txt meson: allow specifying html-docs-path 2024-06-25 10:59:54 +00:00
README.rst README: update links to our own docs 2024-05-15 17:13:10 +00:00
VERSION VERSION: bump to 20.2 2024-04-24 19:51:59 +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://docs.mesa3d.org/install.html>`_), but the recommended way is to use
Meson (`docs/meson.rst <https://docs.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://docs.mesa3d.org/bugs.html>`_).


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

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

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