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read-only mirror of https://gitlab.freedesktop.org/mesa/mesa
9d03dc2537
Dead-cells (and perhaps others) does MapBufferRange(UNSYNC|DISCARD_RANGE) to update single buffered VBOs every frame in the opening menu screen, and because we were considering UNSYNC with higher priority than DISCARD_RANGE, this would result in the game racing VBO updates between binning and tile passes, causing visibility stream inconsistency between the two passes, resulting in "tile flicker". The letter of the gl spec implies this is undefined behavior (at least to my reading of it). But we already hand DISCARD_RANGE in the !UNSYNC case, so just go down this path instead. It means we could potentially end up invalidating (and back-blit) in cases where the app really knows what it is doing, but oh well. Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/4337 Signed-off-by: Rob Clark <robdclark@chromium.org> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9223> |
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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.