Yiwei Zhang
1ea949429c
Android WSI api contract requires to allocate min_undequeued_buffers + 2 to achieve "triple buffering" effect, which is when the composer backend acquired the allowed max numbder of buffers, the producer still has 2 buffers to rotate. ANativeWindow either belongs to SurfaceView which presents directly to SurfaceFlinger or belongs to other surfaces from the UI framework. For the former, SurfaceFlinger hardcodes triple buffering for EGL. For the latter, the surface caps decide the buffer limits or HWUI intercepts and adjusts the min_undequeued_buffers to hint the EGL implementation to prepare enough buffer cache slots while HWUI sets the max dequeued buffer count accordingly. Signed-off-by: Yiwei Zhang <zzyiwei@chromium.org> Reviewed-by: Rob Clark <robdclark@chromium.org> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11206>
`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.