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b52fbf7185
RRGetScreenInfo re-probes connector status, which may result in an EDID transfer for every output, which according to Adam Jackson can be on the order of 100ms for a single EDID block. So our previous implementation of this eglGetMscRateANGLE was blocking for excessive periods of time instead of being a quick query of the refresh rate like users expect. This changes our eglGetMscRateANGLE implementation from using RRGetScreenInfo to RRGetScreenResourcesCurrent and RRGetCrtcInfo. This obtains the same monitor info without re-probing connectors. Fixes a severe performance regression in Chromium WebGL performance. While we're re-implementing the extension, we also implement proper multi-monitor support: if there are multiple active CRTCs, we determine which contains the largest portion of the surface, as specified in the EGL_ANGLE_sync_control_rate extension. We also now report fractional refresh rates correctly rather than rounding to the nearest Hz. Fixes: |
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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 `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.