35ea8b6cd2
We found out that some HW changes on Xe2 make the HW avoid reading the blend state if we're using the null_rt bit in the extended descriptor. Since the alpha_to_coverage bit resides in the blend state, that state is ignored and writes are going through to the depth/stencil buffers. Disable null_rt in the color outputs if the color outputs can affect other outputs (through alpha_to_coverage & omask). Fixes tests in this pattern on Xe2 : dEQP-VK.pipeline.*.multisample.alpha_to_coverage_no_color_attachment.* Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Backport-to: 24.2 Reviewed-by: Ivan Briano <ivan.briano@intel.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31196>
`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 $ meson setup build $ ninja -C build/ $ sudo ninja -C build/ 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.