Reduce complexity in set-color-saturation.
Caveat: on my machine, Nanobench doesn't detect any change (pro or con)
on this CL.
I'm working under the assumption that function calls have a non-zero
cost--they may be inlined (bloating code size), or not (incurring the
costs of a function call, register push/popping, etc). This CL avoids
making six calls to $blend_set_color_saturation by using two half3
variables. These half3s are used to swizzle the result--they contain two
zeros and a one, so multiplying them by a scalar will put the result in
the desired component. I've also made some very minor simplifications to
the math that were made possible by reordering.
Change-Id: I0c1ef88d165365376078846324be8bb723548512
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/528043
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
20 files changed