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read-only mirror of https://gitlab.freedesktop.org/mesa/mesa
99400f272d
Until now the BLT engine only handled same-format blits. Teach it to convert between the UNORM formats it can represent, so format-converting blits no longer fall back to the 3D blitter. The supported formats are A8R8G8B8, X8R8G8B8, A4R4G4B4, A1R5G5B5, R5G6B5, R8G8, R8 and A2R10G10B10. The BLT format names are BGRA-based, matching the PE-internal byte order, so an identity swizzle is correct for all of these except A2R10G10B10. That one the PE keeps in RGBA order, so pipe R lands in the BLT B position and vice versa. blt_conversion_needs_channel_swap() captures this and find_blt_conversion() derives the per-image swizzle. SRGB variants share the BLT format of their UNORM sibling. For example R8G8B8A8_UNORM and R8G8B8A8_SRGB both map to BLT_FORMAT_A8R8G8B8, and the sRGB handling is carried separately via img->srgb. No regressions in dEQP-GLES3.functional.fbo.blit.conversion.*. Signed-off-by: Christian Gmeiner <cgmeiner@igalia.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/39879> |
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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.