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CTA-861-G section 6.9.1 Static Metadata Type 1 declares that zero values for different groups of HDR Metadata properties are allowed, including zero nits values for max display mastering luminance, max content light level, max frame-average light level and min display mastering luminance. A zero value is meant to be treated by the video sink as "undefined" / "unknown", and handled accordingly. This is common for dynamically generated visual content. The is_hdr_metadata_legal() function in the Vulkan/WSI/Wayland HDR backend currently declares HDR light level metadata as invalid if the mastering display min_luminance and max_luminance light levels are set to the legal level of zero nits. This causes valid HDR metadata as set by the client via vkSetHdrMetadata() to be not sent to the compositor. Fix this by skipping checks that don't apply if min_luminance or max_luminance are zero. If max_luminance is zero then we skip sending of mastering display min/max luminance to Wayland, as sending a a max_luminance <= min_luminance would trigger a protocol error. All other valid data is still send, ie. color primaries, white-point, content light levels. 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://docs.mesa3d.org/install.html>`_), but the recommended way is to use Meson (`docs/meson.rst <https://docs.mesa3d.org/meson.html>`_): .. code-block:: sh $ meson setup build $ ninja -C build/ $ sudo ninja -C build/ 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://docs.mesa3d.org/bugs.html>`_). Contributing ------------ Contributions are welcome, and step-by-step instructions can be found in our documentation (`docs/submittingpatches.rst <https://docs.mesa3d.org/submittingpatches.html>`_). Note that Mesa uses gitlab for patches submission, review and discussions.