Eric Anholt
e349f50279
The GLES blob on the p3a limits constlen to 512 between VS and FS across a6xx gpu ids (615, 630, 640, and 650). Experimentally, exceeding that limit in any one stage results in rendering corruption or GPU hangs (though my most detailed testing had a loop limit in a uniform, so that may the cause of the hang). Clamp the limit we use inside of a shader so we don't exceed it within a stage. This commit doesn't resovle limiting inter-stage. Experimentally, I've found that I can push up to a total of ~768 vec4s between VS and FS on a630, with or without uniform updates between each draw. We'll need to do some shader key-based limiting of constlen at draw time to respect that limit, but that's left for future work, and this commit is enough for the google earth case that initiated this work. Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5273>
`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 gitlab for patches submission, review and discussions.