This is a revert of CL 24945 and CL 24954, since we no longer need to
support Go 1.5.
No need to explicitly specify which Go version is required. Instead,
rely on the implicit requirement based on the release support policy¹.
This is simpler and consistent with how it was before CL 24954.
¹ https://tip.golang.org/doc/devel/release.html#policy
Change-Id: I3cfef1bef120f702d5859dad10a76803544cc869
Reviewed-on: https://go-review.googlesource.com/c/148569
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This package has been deprecated since Go 1.6, which is long ago.
There's a warning printed whenever this package is imported, which
helped people migrate away from it by now. Delete it since it's
unused and unsupported.
Change-Id: If84b631ebff6530cdb955af34fa7b84d50130166
Reviewed-on: https://go-review.googlesource.com/c/148570
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This lets programs that underscore import this package build on Go 1.5.
Change-Id: Icd977b16eb44389f8ee4640c2ab57e4b6791b1f4
Reviewed-on: https://go-review.googlesource.com/24954
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
The standard image and image/color packages have NYCbCrA support, as of Go 1.6.
Change-Id: I3ed2a502b3b9fe720968ac21901115e20a11456a
Reviewed-on: https://go-review.googlesource.com/21066
Reviewed-by: Rob Pike <r@golang.org>
them.
Also check for int32 overflow in the webp package.
Fixes#10790.
Change-Id: Id1162fad8a467a72a5379c7f4432d64ef25bc37a
Reviewed-on: https://go-review.googlesource.com/10072
Reviewed-by: Rob Pike <r@golang.org>
At the time of decoding webp file, if chunkID is not one of
{'ALPH', 'VP8', 'VP8L', 'VP8X'} return errInvalidFormat
Fixesgolang/go#10384
Change-Id: I167909b5ddef174d161f806297a08fac6aabcf19
Reviewed-on: https://go-review.googlesource.com/9839
Reviewed-by: Nigel Tao <nigeltao@golang.org>
This fixes all three lossy_alpha*.webp conformance tests.
The test data was generated by cwebp/dwebp version 0.4.1:
cwebp yellow_rose.png -o yellow_rose.lossy-with-alpha.webp
dwebp yellow_rose.lossy-with-alpha.webp -pgm -o tmp.pgm
convert tmp.pgm yellow_rose.lossy-with-alpha.webp.nycbcra.png
LGTM=pascal.massimino, r
R=r, pascal.massimino
CC=golang-codereviews
https://golang.org/cl/154350043
This makes the Go code match the libwebp C code's output on
blue-purple-pink-large.*-filter.lossy.webp
Also make the various WEBP benchmarks all decode a similar image,
the image at http://blog.golang.org/gophercon/image01.jpg, to make
it more meaningful to e.g. compare the simple filter's numbers with
the normal filter's numbers.
Also fix a "go vet" warning in webp/decode.go.
The test data was generated by:
wget http://blog.golang.org/gophercon/image01.jpg -O blue-purple-pink-large.jpeg
convert blue-purple-pink-large.jpeg blue-purple-pink-large.png
cwebp -lossless blue-purple-pink-large.png -o blue-purple-pink-large.lossless.webp
cwebp -q 80 -f 0 blue-purple-pink-large.png -o blue-purple-pink-large.no-filter.lossy.webp
cwebp -q 80 -strong blue-purple-pink-large.png -o blue-purple-pink-large.normal-filter.lossy.webp
cwebp -q 80 -nostrong blue-purple-pink-large.png -o blue-purple-pink-large.simple-filter.lossy.webp
dwebp -pgm blue-purple-pink-large.no-filter.lossy.webp -o tmp.pgm && convert tmp.pgm blue-purple-pink-large.no-filter.lossy.webp.ycbcr.png && rm tmp.pgm
dwebp -pgm blue-purple-pink-large.normal-filter.lossy.webp -o tmp.pgm && convert tmp.pgm blue-purple-pink-large.normal-filter.lossy.webp.ycbcr.png && rm tmp.pgm
dwebp -pgm blue-purple-pink-large.simple-filter.lossy.webp -o tmp.pgm && convert tmp.pgm blue-purple-pink-large.simple-filter.lossy.webp.ycbcr.png && rm tmp.pgm
LGTM=r
R=r
CC=golang-codereviews
https://golang.org/cl/106230044
code.google.com/p/vp8-go
This is a straight copy, followed by import path updates.
LGTM=r
R=r, mirtchovski, oleku.konko
CC=golang-codereviews
https://golang.org/cl/79320043
