3 Commits

Author	SHA1	Message	Date
Nigel Tao	748adb17a1	draw: generate impl.go type switches. ... This just the type switches to concrete-type-specific methods. Generating RGBA- or YCbCr-specific code instead of calling the general-purpose At and Set methods will be follow-up changes. benchmark old ns/op new ns/op delta BenchmarkScaleLargeDownNN 5771212 5766160 -0.09% BenchmarkScaleLargeDownAB 14057354 14023083 -0.24% BenchmarkScaleLargeDownBL 1349968635 1347746478 -0.16% BenchmarkScaleLargeDownCR 2687753329 2678909022 -0.33% BenchmarkScaleDownNN 1802408 1808723 +0.35% BenchmarkScaleDownAB 4352978 4284878 -1.56% BenchmarkScaleDownBL 29760913 29522171 -0.80% BenchmarkScaleDownCR 57666917 56334005 -2.31% BenchmarkScaleUpNN 88886450 89235790 +0.39% BenchmarkScaleUpAB 214687758 213797857 -0.41% BenchmarkScaleUpBL 119588096 119846371 +0.22% BenchmarkScaleUpCR 179784111 180662030 +0.49% BenchmarkScaleSrcUniform 4128528 3855385 -6.62% BenchmarkScaleSrcNRGBA 13275457 13375039 +0.75% BenchmarkScaleSrcRGBA 13333672 12812895 -3.91% BenchmarkScaleSrcYCbCr 14321945 14139071 -1.28% Change-Id: I28025c3b49186a12d20ee0182a4c8ff9b036d0ae Reviewed-on: https://go-review.googlesource.com/5712 Reviewed-by: Rob Pike <r@golang.org>	2015-02-24 06:30:29 +00:00
Nigel Tao	999c3975a8	draw: autogenerate impl.go. ... Adding fast paths for concrete dst and src image types will be follow-up changes. Change-Id: Ib23e3cc46d9c7a52ebd5eddfbad09177b0b421af Reviewed-on: https://go-review.googlesource.com/5417 Reviewed-by: Rob Pike <r@golang.org>	2015-02-24 00:55:15 +00:00
Nigel Tao	2a1231edb8	draw: factor out the Scale implementations. ... This is just a copy/paste/rename in anticipation of automatically generating fast-path code for specific dst-image types and src-image types, a la the standard library's image/draw package. Change-Id: If6385b347cb5e1d134b0ce841ef38ed4450a6fef Reviewed-on: https://go-review.googlesource.com/5252 Reviewed-by: David Symonds <dsymonds@golang.org>	2015-02-20 07:27:42 +00:00