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Nigel Tao 14bbbc8017 vector: add a fast path for RGBA dst images. 
name                      old time/op  new time/op  delta
GlyphRGBA16Over-8         25.1µs ± 2%   6.0µs ± 0%  -76.09%  (p=0.000 n=10+10)
GlyphRGBA16Src-8          17.3µs ± 2%   5.4µs ± 0%  -68.68%  (p=0.000 n=10+10)
GlyphRGBA32Over-8         93.2µs ± 2%  14.5µs ± 0%  -84.41%  (p=0.000 n=10+10)
GlyphRGBA32Src-8          59.3µs ± 2%  12.4µs ± 0%  -79.04%    (p=0.000 n=9+9)
GlyphRGBA64Over-8          350µs ± 2%    45µs ± 0%  -87.21%    (p=0.000 n=9+9)
GlyphRGBA64Src-8           223µs ± 2%    37µs ± 0%  -83.58%    (p=0.000 n=9+9)
GlyphRGBA128Over-8        1.37ms ± 2%  0.16ms ± 1%  -88.19%   (p=0.000 n=9+10)
GlyphRGBA128Src-8          868µs ± 2%   128µs ± 0%  -85.21%   (p=0.000 n=10+9)
GlyphRGBA256Over-8        5.50ms ± 3%  0.59ms ± 0%  -89.31%  (p=0.000 n=10+10)
GlyphRGBA256Src-8         3.47ms ± 2%  0.45ms ± 0%  -86.91%   (p=0.000 n=9+10)

Change-Id: I3df60e6b7147872367715361c9d1ed52951b22e0
Reviewed-on: https://go-review.googlesource.com/29699
Reviewed-by: David Crawshaw <crawshaw@golang.org>
2016-09-27 04:00:57 +00:00
bmp bmp: optimize decoding and encoding 0xH sized images. 2015-05-11 00:10:33 +00:00
cmd/webp-manual-test webp: fix tests for webp/nycbcra deprecation. 2016-04-02 01:02:22 +00:00
colornames colornames: export variables such as Darkred. 2016-05-27 00:36:51 +00:00
draw draw: have Scale and Transform recognize straight copies. 2015-08-02 10:47:07 +00:00
example/font example/font: use an "example" build tag instead of "ignore". 2016-04-12 11:14:18 +00:00
font font/plan9font: look for subfont ".0" suffixes. 2016-08-07 01:57:26 +00:00
math math/fixed: add Mul methods. 2016-08-25 00:04:48 +00:00
riff riff: fix some short chunk data bugs. 2016-07-07 05:37:58 +00:00
testdata draw: tweak the YCbCr to RGBA conversion formula. 2015-07-15 05:30:06 +00:00
tiff tiff/lzw: sync (yet again) to the upstream lzw in the stdlib. 2015-07-02 03:36:51 +00:00
vector vector: add a fast path for RGBA dst images. 2016-09-27 04:00:57 +00:00
vp8 vp8: split expression to placate 386 compiler 2015-07-29 22:52:57 +00:00
vp8l vp8l: don't ignore I/O errors when reading LZ77 parameters. 2015-05-11 04:53:56 +00:00
webp webp: make a placeholder package for Go 1.5 and earlier. 2016-07-16 05:04:44 +00:00
.gitattributes image: copying .gitattributes to all subrepositories 2014-12-23 11:05:35 +00:00
.gitignore convert .hgignore to .gitignore. 2014-12-08 10:42:30 +11:00
AUTHORS go.empty: prototype for new subrepository 2012-01-25 14:45:13 -05:00
codereview.cfg image: add codereview.cfg 2015-03-18 17:04:05 +00:00
CONTRIBUTING.md doc: add CONTRIBUTING.md 2015-02-20 05:00:47 +00:00
CONTRIBUTORS go.empty: prototype for new subrepository 2012-01-25 14:45:13 -05:00
LICENSE LICENSE: add 2012-03-17 15:20:31 +11:00
PATENTS go.image: add PATENTS file to the subrepo. 2012-04-16 11:25:02 +10:00
README go.image: initial code. 2012-01-31 11:32:50 +11:00

README 

This repository holds supplementary Go image libraries.

To submit changes to this repository, see http://golang.org/doc/contribute.html.