Pascal Massimino e03f0ec319 sharp_yuv: use 14b fixed-point precision for gamma
Output is <.1% difference in size, randomly.

Speed is 30-50% faster (-m 0 -sharp_yuv).
It also gives the exact same output on ARM and x86, because floats
are no longer used.

Change-Id: Id0f0aa748cc4fc0b82bac1fc5ca954775a0a1b7c
2018-03-23 20:19:28 +01:00
..
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