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While this is not quite as clear as in the previous commit, I still believe this is the case, but in a bit of an indirect way: 1. EXT_texture_storage defines that GL_BGRA8_EXT is allowed to be used in certain sitations if *either* EXT_texture_format_BGRA8888 *or* APPLE_texture_format_BGRA8888 is supported. 2. Surprisingly, EXT_texture_format_BGRA8888 (which we do support) does not even mention GL_BGRA8_EXT, only GL_BGRA_EXT. 3. APPLE_texture_format_BGRA8888 on the other hand (which we *don't* support) *does* introduce GL_BGRA8_EXT, and is pretty clear about it being intended for rendering-purposes. But it's written against GLES 1.1 instead of GLES 2 or later, so it doesn't explicitly add it to the required tables. I think the above tells us that GL_BGRA8_EXT is *supposed* to be a color-renderable format, even if the way we currently support it is rather underspecified. It should also be texture-filterable, for the same reason as in the previous commit. In the longer run, we should probably add support for APPLE_texture_format_BGRA8888, which would make things a bit clearer. Reviewed-by: Marek Olšák <marek.olsak@amd.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27521> |
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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.