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read-only mirror of https://gitlab.freedesktop.org/mesa/mesa
8ed2e53e0d
It is valid to submit with an empty list ofcommand buffers, however, we still need to wait on the pWaitSemaphores provided and only signal the pSignalSemaphores and fence once we have finished waiting on them to honor the semantics of the submission. Because waiting and signaling happens in the kernel, the easiest way to do this is to submit a trivial no-op job to the GPU. To do this, we need to refactor some of our code so that code that might have been operating on a command buffer starts operating on a job instead, so we can resuse most of our infrastructure to create the no-op job. Additionally, because no-op jobs are created internally by the driver, we are responsible for destroying them too. For this, we bind a fence to each no-op job we submit and we test for completion of in-flight no-op jobs (and destory them if completed) every time vkQueueSubmit is called. Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766> |
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`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.