add checks to avoid using optimizations when inappropriate #1950
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The fast unpack routines for 3 and 4 channels were not designed to handle sub-sampled images, but need to appear before other fallback disablement in the choice logic. Until that choice logic can be simplified, add additional checks to avoid heading to that branch Signed-off-by: Kimball Thurston <[email protected]>
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The fast unpack routines for 3 and 4 channels were not designed to handle sub-sampled images, but need to appear before other fallback disablement in the choice logic. Until that choice logic can be simplified, add additional checks to avoid heading to that branch.
This addresses a crash found when trying to test #1949