This involves moving helpers in separate pan_{layout,image,texture}.{c,h}
files, and renaming some of the helper/structs to clarify their purpose.
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Eric R. Smith <eric.smith@collabora.com>
Reviewed-by: Mary Guillemard <mary.guillemard@collabora.com>
Acked-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Ryan Mckeever <ryan.mckeever@collabora.com>
Reviewed-by: Olivia Lee <olivia.lee@collabora.com>
Reviewed-by: Lars-Ivar Hesselberg Simonsen <lars-ivar.simonsen@arm.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34767>
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