[Mesa-dev] [PATCH V3 13/13] intel: Enable ETC2 support on intel hardware

[Eric Anholt]

Anuj Phogat <anuj.phogat at gmail.com> writes:

> This patch enables support for ETC2 compressed textures on
> all intel hardware. At present, ETC2 texture decoding is not
> available on intel hardware. So, compressed ETC2 texture data
> is decoded in software and stored in a suitable uncompressed
> MESA_FORMAT at the time of glCompressedTexImage2D. Currently,
> ETC2 formats are only exposed in OpenGL ES 3.0.
>
> V2: Use single etc_wraps variable for both etc1 and etc2.
> V3: Remove redundant code and use just one intel_miptree_map_etc()
> and intel_miptree_unmap_etc() function.
> Signed-off-by: Anuj Phogat <anuj.phogat at gmail.com>

Given that we support x/y offsets anyway, the asserts for map->x/y == 0
and the justification for it could be dropped.  But either way.

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