Mike Blumenkrantz
97c7eaf17f
an implicit feedback loop occurs when an app happens to bind the same image as both a framebuffer attachment and a sampler for the same draw an explicit feedback loop occurs when an app uses fbfetch to read data back from the framebuffer using input attachments fbfetch is already handled, but implicit feedback loops require more work: * detecting them happens on-the-fly * pipeline variants are required this handles implicit feedback loops by detecting them at draw time during barrier updates and then flagging pipeline state change to trigger variant creation. the bits are then unset when the framebuffer/sampler binds are removed fixes #7309 fixes (tu): KHR-GL46.texture_barrier.disjoint-texels KHR-GL46.texture_barrier.overlapping-texels KHR-GL46.texture_barrier.same-texel-rw-multipass KHR-GL46.texture_barrier_ARB.disjoint-texels KHR-GL46.texture_barrier_ARB.overlapping-texels KHR-GL46.texture_barrier_ARB.same-texel-rw-multipass Reviewed-by: Adam Jackson <ajax@redhat.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18787>
`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.