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Mesa3D Graphics Library (Bleeding edge ray tracing branches)
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Alejandro Piñeiro fef9ef48dd gallium/u_blitter: clean up texcoords ZW when filling up just XY 
To avoid a scenario like this:
  * One blit needed the four components => XYZW filled up with 4 values
  * Following blit needing two components => ZW uses the previous values

We detected this using the v3d driver with the
arb_framebuffer_srgb-blit test, specifically:

  ./bin/arb_framebuffer_srgb-blit texture linear_to_srgb msaa enabled render -auto -fbo

The main linear to srgb with msaa (not doing the resolve yet) blit
requires the four components.

At the end (after a resolve copy), the test uses glReadPixels, and
internally it uses the blitter with two components, but the shader
still uses lod on the texel fetch, so it gets the one used for the
main blit, when it should be zero.

Right now v3d works fine even with that wrong value, and I assume that
any other driver too. But we can't ensure that would keep happening on
the future, so let's use correct values.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13753>
 		2021-11-16 10:17:18 +01:00
.gitlab/issue_templates issue_templates/Bug Report: Rename master branch to main 2021-05-05 12:20:11 -07:00
.gitlab-ci ci/bare-metal: Close serial and join serial threads before exit. 2021-11-10 20:36:57 +00:00
android AOSP: Add panfrost vulkan library suffix 2021-08-16 09:18:46 +00:00
bin vulkan/include: import the video codec headers. 2021-11-09 04:33:06 +00:00
build-support
…
docs docs: update branchpoint instructions 2021-11-15 23:24:03 +00:00
include vulkan/include: import the video codec headers. 2021-11-09 04:33:06 +00:00
src gallium/u_blitter: clean up texcoords ZW when filling up just XY 2021-11-16 10:17:18 +01:00
subprojects meson: Update libelf wrap for Windows 2021-11-12 09:46:10 +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/bare-metal: add .baremetal-test-arm64 2021-11-12 08:22:29 +00:00
.mailmap .mailmap: Simplify my name 2021-11-03 20:48:43 +00:00
.travis.yml travis: Download XQuartz from GitHub. 2021-05-29 10:25:16 +00:00
CODEOWNERS CODEOWNERS: add @jenatali for Microsoft & D3D12 2021-10-06 22:52:05 +00:00
README.rst docs: promote #dri-devel on oftc over freenode 2021-05-24 09:21:48 +00:00
VERSION VERSION: bump to 22.0 2021-10-13 20:52:19 +01:00
meson.build meson: Check arguments before adding. 2021-11-09 20:51:14 +00:00
meson_options.txt meson: allow building with vulkan beta extensions enabled. 2021-11-09 04:33:06 +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 `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.