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3 Commits

Author SHA1 Message Date
Derek Buitenhuis
e7c2a4f042 bmp: Add support for writing bitmaps with alpha channels 
This also fixes the writer test to actually compare the decoded images,
so as to make sure it is decoded properly.

Implements golang/go#25945.

Change-Id: I606887baa11b7664018313cf7d5800b2dc7622cf
Reviewed-on: https://go-review.googlesource.com/120095
Reviewed-by: Nigel Tao <nigeltao@golang.org>
Run-TryBot: Nigel Tao <nigeltao@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
 2018-07-06 05:04:57 +00:00
Nigel Tao
f28211f6e1 bmp: optimize decoding and encoding 0xH sized images. 
It should be quick regardless of how large H is.

Fixes golang/go#10746

Change-Id: Icde36047e88d9786e64f44724b7ba8b38db2a33f
Reviewed-on: https://go-review.googlesource.com/9836
Reviewed-by: Nigel Tao <nigeltao@golang.org>
 2015-05-11 00:10:33 +00:00
ChaiShushan
864256f267 go.image/bmp: add Encode 
R=nigeltao
CC=golang-dev
https://golang.org/cl/13407045
 2013-09-10 17:19:36 +10:00