Samuel Pitoiset cd59c22325 ac,radv: use better export formats for 8-bit when RB+ isn't allowed
When RB+ is enabled, R8_UINT/R8_SINT/R8_UNORM should use FP16_ABGR
for 2x exporting performance. Otherwise, use 32_R to remove useless
instructions needed for 16-bit compressed exports.

fossils-db (Vega10):
Totals from 8858 (6.35% of 139517) affected shaders:
SGPRs: 801248 -> 801210 (-0.00%); split: -0.01%, +0.00%
VGPRs: 596224 -> 596120 (-0.02%); split: -0.02%, +0.01%
CodeSize: 71462452 -> 71356684 (-0.15%); split: -0.15%, +0.00%
MaxWaves: 37097 -> 37105 (+0.02%); split: +0.04%, -0.02%
Instrs: 13963177 -> 13950809 (-0.09%); split: -0.09%, +0.00%
Cycles: 1476539360 -> 1476489996 (-0.00%); split: -0.00%, +0.00%
VMEM: 2363008 -> 2361349 (-0.07%); split: +0.04%, -0.11%
SMEM: 550362 -> 549977 (-0.07%); split: +0.01%, -0.08%
VClause: 245704 -> 245727 (+0.01%); split: -0.01%, +0.02%
SClause: 485161 -> 485104 (-0.01%); split: -0.01%, +0.00%
Copies: 1420034 -> 1422310 (+0.16%); split: -0.01%, +0.17%
Branches: 518710 -> 518705 (-0.00%)
PreSGPRs: 706633 -> 706584 (-0.01%)
PreVGPRs: 547163 -> 547007 (-0.03%); split: -0.03%, +0.01%

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7512>
2020-11-23 17:54:16 +00:00
2020-08-06 09:46:48 +00:00
2020-01-18 11:39:32 +01:00
2020-08-06 09:46:48 +00:00
2019-10-18 16:42:40 +00:00
2020-11-09 16:20:45 -08:00

`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 `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.
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