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This new EGL extension has been introduced in [1]. When we have a DRM device and a render node, we can advertise the extension and return the render node name for the EGL_DRM_RENDER_NODE_FILE_EXT query. For the special software EGL device, we can advertise the extension and return NULL for the EGL_DRM_RENDER_NODE_FILE_EXT query, because we can guarantee that llvmpipe will never use a render node for rendering operations. However, llvmpipe might be using a primary node when used with the GBM platform. So we can't advertise EXT_device_drm in this case. When we have a DRM device but no render node, that means we're on a split render/display SoC. We _should_ return the render node used by the renderonly driver, however Mesa needs more plumbing to allow this, so let's just disable the extension for now. [1]: https://github.com/KhronosGroup/EGL-Registry/pull/127 Signed-off-by: Simon Ser <contact@emersion.fr> Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11797>
`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.