[Mesa-dev] [PATCH 3/3] gallium/u_transfer_helper: Add support for separate Z24/S8 as well.

[Eric Anholt]

Kenneth Graunke <kenneth at whitecape.org> writes:

> u_transfer_helper already had code to handle treating packed Z32_S8
> as separate Z32_FLOAT and S8_UINT resources, since some drivers can't
> handle that interleaved format natively.
>
> Other hardware needs depth and stencil as separate resources for all
> formats.  For example, V3D3 needs this for 24-bit depth as well.
>
> This patch adds a new flag to lower all depth/stencils formats, and
> implements support for Z24_UNORM_S8_UINT.  (S8_UINT_Z24_UNORM is left
> as an exercise to the reader, preferably someone who has access to a
> machine that uses that format.)

It won't be directly usable for V3D, because we only want separate
stencil z24s8 in the MSAA case.  These kinds of complications are why I
wanted a helper library, not a midlayer.

However, this does look good and should bring your project closer to
completion, so:

Reviewed-by: Eric Anholt <eric at anholt.net>
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