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cfa8deaad9
The previous patches statically remapped the texture format at sampler
view creation time (A8R8G8B8 -> A8B8G8R8) for shared resources with
RB_SWAP formats. This is correct when the shared buffer holds
externally-produced RGBA data (import) or after flush_resource has done
the R<->B swap.
However, if the PE renders directly to a shared buffer (LINEAR_PE, no
render shadow), the data becomes BGRA. The static A8B8G8R8 format then
reads BGRA as RGBA - R and B are swapped.
Fix this by tracking whether the shared buffer holds native (RGBA) or
PE-internal (BGRA) byte order via a new shared_native_order flag, and
selecting the texture format dynamically at emit time.
The flag is set to true on import and export (data is native byte order
at that point), cleared when the PE renders directly to a shared buffer
without a render shadow, and set back to true after flush_resource
performs the R<->B swap.
Both the state-based and descriptor-based texture paths pre-compute the
native format variant at sampler view creation time, avoiding any
per-frame overhead beyond a single branch in the emit path.
Fixes: a5766e75e48 ("etnaviv: Use BGRA-internal texture format with BLT/RS R/B swizzle")
Signed-off-by: Christian Gmeiner <cgmeiner@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40029>
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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.