Zan Dobersek
85a8cc14c0
The WRITE_SAMPLE_COUNT_DIFF attribute of CP_EVENT_WRITE7 calculates the difference between the begin and end sample-count values, but it in fact accumulates that difference in the desired location, so it's renamed to reflect that. When writing out the ending-point samples count for the occlusion query through CP_EVENT_WRITE7::ZPASS_DONE, enable the SAMPLE_COUNT_END_OFFSET and WRITE_ACCUM_SAMPLE_COUNT_DIFF attributes on the event struct and use the address of the beginning-count value. The latter adjustment is necessary since the difference will be written 8 bytes into the buffer and the ending-count will be written 16 bytes into the buffer. With the occlusion query result now being handily accumulated in the query buffer as long as the hardware supports it, the occlusion_query_slot struct is adjusted to reflect that. On pre-a740 hardware the difference is still calculated and stored in the result location, whereas on newer hardware CP_EVENT_WRITE7::ZPASS_DONE can do it for us. Signed-off-by: Zan Dobersek <zdobersek@igalia.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28610>
`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.