Neil Roberts f4cd5aceb9 _cogl_bitmap_convert: Also handle premult conversions
If we are going to unpack the data into a known format anyway we might
as well do the premult conversion instead of delaying it to do
in-place. This helps because not all formats with alpha channels are
handled by the in-place premult conversion code. This removes the
_cogl_bitmap_convert_format_and_premult function so that now
_cogl_bitmap_convert is a completely general purpose function that can
convert from anything to anything. _cogl_bitmap_convert now includes a
fast path for when the base formats are the same and the premult
conversion can be handled with the in-place code so that we don't need
to unpack and can just copy the bitmap instead.

Reviewed-by: Robert Bragg <robert@linux.intel.com>
2012-03-05 17:44:52 +00:00
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