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read-only mirror of https://gitlab.freedesktop.org/mesa/mesa
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The hardware can flush transform feedback writes before reads in the same job by inserting this command. This patch detects when the rendering state for the current draw call reads resources that had been previously written by transform feedback in the same job and inserts the 'Wait for transform feedback' command before emitting the new draw. v2 (Eric): - this was intended to look at job->tf_write_prscs for TF jobs. - clear job->tf_write_prscs after we emit the TF flush. - can skip flushes for fragment shader reads from TF. v3 (Eric): - all resources in job->tf_write_prscs are resources written by TF so we don't need to check if they are bound to PIPE_BIND_STREAM_OUTPUT. - documented optimization opportunity for geometry stages. Reviewed-by: Eric Anholt <eric@anholt.net> |
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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.html <https://mesa3d.org/install.html>`_), but the recommended way is to use Meson (`docs/meson.html <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.html <https://mesa3d.org/bugs.html>`_). Contributing ------------ Contributions are welcome, and step-by-step instructions can be found in our documentation (`docs/submittingpatches.html <https://mesa3d.org/submittingpatches.html>`_). Note that Mesa uses email mailing-lists for patches submission, review and discussions.