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The Go programming language
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af08cfa494
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Nigel Tao af08cfa494 image: add PixOffset methods; use them in image/draw and image/tiff. 
image/draw benchmarks show <1% change for the fast paths.
The slow paths got worse by 1-4%, but they're the slow paths.
I don't care so much about them, and presumably compiler improvements
could claw it back.

IIUC 6g's inlining is enabled by default now.

benchmark                        old ns/op    new ns/op    delta
draw.BenchmarkFillOver             2988384      2999624   +0.38%
draw.BenchmarkFillSrc               153141       153262   +0.08%
draw.BenchmarkCopyOver             2155756      2170831   +0.70%
draw.BenchmarkCopySrc                72591        72646   +0.08%
draw.BenchmarkNRGBAOver            2487372      2491576   +0.17%
draw.BenchmarkNRGBASrc             1361306      1409180   +3.52%
draw.BenchmarkYCbCr                2540712      2562359   +0.85%
draw.BenchmarkGlyphOver            1004879      1023308   +1.83%
draw.BenchmarkRGBA                 8746670      8844455   +1.12%
draw.BenchmarkGenericOver         31860960     32512960   +2.05%
draw.BenchmarkGenericMaskOver     16369060     16435720   +0.41%
draw.BenchmarkGenericSrc          13128540     13127810   -0.01%
draw.BenchmarkGenericMaskSrc      30059300     28883210   -3.91%

R=r, gri
CC=golang-dev, rsc
https://golang.org/cl/5536059
2012-01-19 12:59:39 +11:00
doc godoc: specify HTML page metadata with a JSON blob 2012-01-19 11:24:54 +11:00
include os: OS-dependent bits to support NetBSD. 2011-12-15 12:19:19 -05:00
lib godoc: fix missing name change 2012-01-12 17:54:17 -08:00
misc go/doc: streamlined go/doc API 2012-01-12 17:36:57 -08:00
src image: add PixOffset methods; use them in image/draw and image/tiff. 2012-01-19 12:59:39 +11:00
test test: split golden.out into expected output per test 2012-01-18 16:12:24 -08:00
.hgignore .hgignore: ignore autogenerated files 2011-12-20 15:54:39 -05:00
.hgtags tag weekly.2012-01-15 2012-01-16 09:52:35 +11:00
AUTHORS A+C: add Yoshiyuki Kanno (Individual CLA) 2012-01-10 15:50:44 -08:00
CONTRIBUTORS CONTRIBUTORS: add Johnathan Pittman 2012-01-15 19:52:45 -05:00
favicon.ico add a favicon plus a couple of hi-res versions of gordon 2009-10-26 10:13:07 -07:00
LICENSE LICENSE: separate, change PATENTS text 2010-12-06 16:31:59 -05:00
PATENTS LICENSE: separate, change PATENTS text 2010-12-06 16:31:59 -05:00
README build: update, streamline documentation for new $GOBIN 2010-08-24 20:00:50 -04:00
robots.txt godoc: serve robots.txt raw 2011-02-19 05:46:20 +11:00

README 

This is the source code repository for the Go programming language.  

For documentation about how to install and use Go,
visit http://golang.org/ or load doc/install.html in your web browser.

After installing Go, you can view a nicely formatted
doc/install.html by running godoc --http=:6060
and then visiting http://localhost:6060/doc/install.html.

Unless otherwise noted, the Go source files are distributed
under the BSD-style license found in the LICENSE file.

--

Binary Distribution Notes

If you have just untarred a binary Go distribution, you need to set
the environment variable $GOROOT to the full path of the go
directory (the one containing this README).  You can omit the
variable if you unpack it into /usr/local/go, or if you rebuild
from sources by running all.bash (see doc/install.html).
You should also add the Go binary directory $GOROOT/bin
to your shell's path.

For example, if you extracted the tar file into $HOME/go, you might
put the following in your .profile:

    export GOROOT=$HOME/go
    export PATH=$PATH:$GOROOT/bin

See doc/install.html for more details.