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read-only mirror of https://gitlab.freedesktop.org/mesa/mesa
3fc2b77823
For mesh/task shaders, the thread payload provides a local invocation index, but it's always linear so it doesn't give the correct value when quad derivatives are in use. The lowering pass where all of this is done correctly for compute shaders assumes load_local_invocation_index will be lowered in the backend for mesh/task, calculates the values for the quads correctly but then avoid replacing the original intrinsic and we remain with the wrong results. Add an intel specific intrinsic and always lower the generic one to that (or whatever else was calculated) to avoid ambiguities and fix the value for quad derivatives. Fixes future CTS tests using mesh/task shaders under: dEQP-VK.spirv_assembly.instruction.compute.compute_shader_derivatives.* Fixes: |
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| VERSION | ||
`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.