Nigel Tao dbcdce5866 image/png: optimize paeth some more. ... filterPaeth takes []byte arguments instead of byte arguments, which avoids some redudant computation of the previous pixel in the inner loop. Also eliminate a bounds check in decoding the up filter. benchmark old ns/op new ns/op delta BenchmarkDecodeGray 3139636 2812531 -10.42% BenchmarkDecodeNRGBAGradient 12341520 10971680 -11.10% BenchmarkDecodeNRGBAOpaque 10740780 9612455 -10.51% BenchmarkDecodePaletted 1819535 1818913 -0.03% BenchmarkDecodeRGB 8974695 8178070 -8.88% R=rsc CC=golang-dev https://golang.org/cl/6243061		2012-05-30 21:38:46 +10:00
..
color	build: remove Make.pkg, Make.tool	2012-01-30 23:43:46 -05:00
draw	doc: add Go image/draw package article and convert code snippets to Go1.	2012-03-14 11:27:41 +11:00
gif	std: add struct field tags to untagged literals.	2012-02-03 10:12:25 +11:00
jpeg	all: avoid bytes.NewBuffer(nil)	2012-02-06 14:09:00 +11:00
png	image/png: optimize paeth some more.	2012-05-30 21:38:46 +10:00
testdata	image: remove image/bmp and image/tiff from std.	2012-01-31 14:01:53 +11:00
decode_example_test.go	image: add Decode example.	2012-02-18 15:09:01 +11:00
decode_test.go	image: remove image/bmp and image/tiff from std.	2012-01-31 14:01:53 +11:00
format.go	image: add package docs, rename s/UnknownFormatError/ErrFormat/ and	2012-02-06 11:04:12 +11:00
geom.go	image: fix typo in Rectangle.Sub comment.	2012-01-18 10:55:03 +11:00
image_test.go	image: spin off a new color package out of the image package.	2011-10-04 11:09:03 +11:00
image.go	doc: added The Go image package article	2012-03-28 14:20:51 +11:00
names.go	image: delete the image.Repeated type.	2012-02-08 11:41:47 +11:00
ycbcr_test.go	all: shorten some of the longer tests	2012-02-18 16:24:23 -05:00
ycbcr.go	image: change the YCbCr image's pixel buffers to start at Rect.Min	2012-01-20 10:44:22 +11:00