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26936f5590
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3 Commits

Author SHA1 Message Date
Benny Siegert
26936f5590 go.image/tiff: Support reading 16-bit gray images. 
Fixes golang/go#5866.

R=nigeltao
CC=golang-dev
https://golang.org/cl/11920043
 2013-07-30 15:02:33 +10:00
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