golang-image

Commit Graph

Author	SHA1	Message	Date
Benny Siegert	324e6dabf0	go.image/tiff: optimize reading uncompressed files from a tiff.buffer. In case the image is read via a tiff.buffer, avoid copying the data strip before decoding it. Remove corresponding TODO. Speeds up reading uncompressed images (which is the common case) and uses much less memory. benchmark old ns/op new ns/op delta BenchmarkDecodeCompressed 4619438 4630774 +0.25% BenchmarkDecodeUncompressed 260809 219875 -15.70% R=nigeltao CC=golang-dev https://golang.org/cl/5683050	2012-02-21 11:25:19 +11:00
Nigel Tao	cc3e6234e7	go.image: initial code. Manual edits to README. Moved from main Go repository, deleted Makefiles. Tested with go test code.google.com/p/go.image/... Fixes golang/go#2797. R=rsc, rsc, r CC=golang-dev https://golang.org/cl/5593053	2012-01-31 11:32:50 +11:00

Author

SHA1

Message

Date

Benny Siegert

324e6dabf0

go.image/tiff: optimize reading uncompressed files from a tiff.buffer.

In case the image is read via a tiff.buffer, avoid copying the
data strip before decoding it. Remove corresponding TODO.
Speeds up reading uncompressed images (which is the common case)
and uses much less memory.

benchmark                      old ns/op    new ns/op    delta
BenchmarkDecodeCompressed        4619438      4630774   +0.25%
BenchmarkDecodeUncompressed       260809       219875  -15.70%

R=nigeltao
CC=golang-dev
https://golang.org/cl/5683050

2012-02-21 11:25:19 +11:00

Nigel Tao

cc3e6234e7

go.image: initial code.

Manual edits to README.
Moved from main Go repository, deleted Makefiles.

Tested with go test code.google.com/p/go.image/...

Fixes golang/go#2797.

R=rsc, rsc, r
CC=golang-dev
https://golang.org/cl/5593053

2012-01-31 11:32:50 +11:00

2 Commits