3182209673
Pre-V3D 4.3 hardware has a quirk where it expects XY coordinates in .8 fixed-point format, but then it will internally round it to .6 fixed-point, introducing a double rounding. The double rounding can cause very slight differences in triangle raterization coverage that can actually be noticed by some CTS tests. The correct fix for this as recommended by Broadcom is to convert to .8 fixed-point with ffloor(). Fixes: dEQP-VK.renderpass.suballocation.subpass_dependencies.late_fragment_tests.* Reviewed-by: Alejandro Piñeiro <apinheiro@igalia.com> Reviewed-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6677>
`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.