tree eaabd9d2a05b90f15d43b300207cd9a1e4cb072c
parent 4180bcbc4acff52f8e60ba19bbacd0301084b566
author Nigel Tao <nigeltao@golang.org> 1426849995 +1100
committer Nigel Tao <nigeltao@golang.org> 1426912103 +0000

draw: add Scale and Transform fast paths for Uniform src images.

benchmark                      old ns/op     new ns/op     delta
BenchmarkScaleSrcUniform       1744610       6305          -99.64%
BenchmarkTformABSrcUniform     586201        520028        -11.29%
BenchmarkTformCRSrcUniform     586952        519151        -11.55%

Change-Id: Ide9148f9e91bb6ec607fa7e9d78b35772ca189fe
Reviewed-on: https://go-review.googlesource.com/7881
Reviewed-by: Rob Pike <r@golang.org>