Fuzz SkAndroidCodec to help to catch errors in both incrementalDecode
and scanlineDecode. Try a variety of sample sizes, but cap it at 64.
Though sometimes larger sample sizes are used, the lower ones tend to
more common. Also draw the resulting bitmap to verify that we
initialized all pixels.
Independently test incrementalDecode to ensure that it initializes
rowsDecoded.
Change-Id: I20d8a408cd280262fdc62f902a6f04f0f57f5ad2
Reviewed-on: https://skia-review.googlesource.com/c/162025
Commit-Queue: Kevin Lubick <kjlubick@google.com>
Auto-Submit: Leon Scroggins <scroggo@google.com>
Reviewed-by: Kevin Lubick <kjlubick@google.com>
This CL renames FuzzPath() to FuzzNicePath() to remind us that it's
meant to create paths that a user could reasonably want to create
in good faith, to pass to Skia via its API, etc.
Then, add fuzz_nice_rect(), and have FuzzNicePath() use that to create
its rectangles and use FuzzNiceMatrix() to create its matrices, just
like we already use FuzzNiceRRect() to create rounded rectangles and
FuzzNicePath() itself to create sub-paths.
Using fuzz_nice_rect() should be the fix for the attached bug.
Using FuzzNiceMatrix() is by analogy, more preemptive.
While we're at it, rename BuildPath to FuzzEvilPath, so the contrast
with FuzzNicePath is more clear.
Update the assertions that we create a valid path in FuzzNicePath()
to tell us where things went wrong if they do.
Bug: oss-fuzz:10667, skia:8384
Change-Id: I6d802182a62815cd969c65cf0479609f64b1da55
Reviewed-on: https://skia-review.googlesource.com/156840
Reviewed-by: Kevin Lubick <kjlubick@google.com>
Commit-Queue: Kevin Lubick <kjlubick@google.com>
Auto-Submit: Mike Klein <mtklein@google.com>
This will point out if something's gone screwy earlier in Debug builds.
Bug: oss-fuzz:10488
Change-Id: Ib091ada75344140bbe2932e5c2f1e2257f05019b
Reviewed-on: https://skia-review.googlesource.com/156660
Auto-Submit: Mike Klein <mtklein@google.com>
Reviewed-by: Kevin Lubick <kjlubick@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
As far as I can tell, the attached bugs are self-inflicted wounds.
Bug: skia:8383, oss-fuzz:10378
Change-Id: Ie0bee292982d9e56193b90c04fef5e43bb2e36d4
Reviewed-on: https://skia-review.googlesource.com/156249
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Kevin Lubick <kjlubick@google.com>
Nothing's using it except test tools.
I'd like to make that a bit clearer by getting it out of src.
Disabled the fuzzer.
Removed the bench so Android's building nanobench doesn't block this.
Bug: chromium:886713
Change-Id: I761f52c40171c27ff4b699409b32647e84684ec3
Reviewed-on: https://skia-review.googlesource.com/156240
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Kevin Lubick <kjlubick@google.com>
Some oss-fuzz bugs (like the linked one) would not reproduce
in Skia proper due to the fact that there were subtle overloads
of the various Fuzz::next() methods in FuzzCanvas.cpp that
were pulled in in Skia proper, but not oss-fuzz.
This puts all of them in to FuzzCommon.h and makes the
matrix and rrect ones opt-in (fuzz_matrix, fuzz_rrect).
Additionally, this renames fuzz.cpp -> FuzzMain.cpp so we
can properly include Fuzz.cpp in oss-fuzz without
having two mains.
Bug: oss-fuzz:10378
Change-Id: I6cf9afb471781b9fadb689482109a1e5662358b5
Reviewed-on: https://skia-review.googlesource.com/154900
Commit-Queue: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
Bug: skia:
Change-Id: I0ca1f3b60d05ce02d1e53bb8b989c9dc1babddd1
Reviewed-on: https://skia-review.googlesource.com/150915
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Jim Van Verth <jvanverth@google.com>
With the fixes in https://skia-review.googlesource.com/c/skia/+/150465
this should allow us to fuzz Pathop on oss-fuzz.
Bug: skia:
Change-Id: Id5df511f850f23b5aad0bcb39664d18f639ddb69
Reviewed-on: https://skia-review.googlesource.com/150560
Auto-Submit: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Cary Clark <caryclark@google.com>
Commit-Queue: Cary Clark <caryclark@google.com>
Change-Id: Ieac05047826b1fb80950d65573d38494a1a5c5e7
Reviewed-on: https://skia-review.googlesource.com/148383
Commit-Queue: Hal Canary <halcanary@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
Auto-Submit: Hal Canary <halcanary@google.com>
Reviewed-by: Ben Wagner <bungeman@google.com>
AFAICT none of our clients are using this feature
This will change the occludedrrectblur GM.
Change-Id: I7e5b8fa67db0373dee11a1467d2b2b6a414a1574
Reviewed-on: https://skia-review.googlesource.com/147561
Reviewed-by: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Mike Reed <reed@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
Prepare SkRegion.h, SkShader.h, SkStream.h for documentation.
Name params, add trailing commas to enum member list,
move or remove some public SkRegion.h stuff.
SkRegion gets a minor overhaul to move some pieces
to private: or SkRegionPriv. The intent is to preserve the
current code so that the fixes for documentation do not impact
performance or code size.
R=djsollen@google.com,reed@google.com
Docs-Preview: https://skia.org/?cl=141284
Bug: skia:6818
Change-Id: I0d82794081b8739a9e8af0d1cd4a0e5d32d04f04
Reviewed-on: https://skia-review.googlesource.com/141284
Commit-Queue: Cary Clark <caryclark@skia.org>
Reviewed-by: Mike Reed <reed@google.com>
Create new header and namespace, `SkUTF` where we are putting all of our
robust, well documented UTF-8, UTF-16, and UTF-32 functions:
`SkUTF::{Count,Next,To}UTF{8,16,32}()`.
SkUTF.h and SkUTF.cpp do not depend on the rest of Skia and are suitable
for re-use in other modules.
Some of the old UTF-{8,16} functions still live in SkUtils.h; their use
will be phased out in future CLs.
Also added more unit testing and cleaned up old tests.
Removed functions that were unused outside of tests or used only once.
Change-Id: Iaa59b8705abccf9c4ba082f855da368a0bad8380
Reviewed-on: https://skia-review.googlesource.com/143306
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
This is a reland of 2267a09235
Original change's description:
> SkDEBUGF: use __VA_ARGS__
>
> Change-Id: I42a47e821ff7a7f6cec65b38a8216cabbf0acfce
> Reviewed-on: https://skia-review.googlesource.com/139860
> Reviewed-by: Mike Klein <mtklein@google.com>
> Commit-Queue: Hal Canary <halcanary@google.com>
Change-Id: Ia06567e441a414f4dcdbe5663160082f889f9fef
Reviewed-on: https://skia-review.googlesource.com/141762
Reviewed-by: Hal Canary <halcanary@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
SkTextBlob has a number of untested entry points
to serialize and deserialize. Privitize ones only used
by Skia, and remove ones suspected to be unused
and untested.
R=fmalita@chromium.orgTBR=reed@google.com,bsalomon@google.com
Bug: skia:6818
Change-Id: I6a9982a26a883982af3592f3302029a1bcdf5aa3
Reviewed-on: https://skia-review.googlesource.com/141820
Reviewed-by: Florin Malita <fmalita@chromium.org>
Reviewed-by: Cary Clark <caryclark@skia.org>
Commit-Queue: Cary Clark <caryclark@skia.org>
* Add fuzzer
* Add bench tests
* Add additional unit test
* Fix some bugs these exposed.
Bug: skia:
Change-Id: I6c587c92cb6cff32ab8300020b78f9f247d2bf64
Reviewed-on: https://skia-review.googlesource.com/139169
Commit-Queue: Jim Van Verth <jvanverth@google.com>
Reviewed-by: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
This reverts commit 2267a09235.
Reason for revert: It looks like Google 3 is failing to compile w/ this CL
Original change's description:
> SkDEBUGF: use __VA_ARGS__
>
> Change-Id: I42a47e821ff7a7f6cec65b38a8216cabbf0acfce
> Reviewed-on: https://skia-review.googlesource.com/139860
> Reviewed-by: Mike Klein <mtklein@google.com>
> Commit-Queue: Hal Canary <halcanary@google.com>
TBR=mtklein@google.com,halcanary@google.com,reed@google.com
Change-Id: I3aab490f3d2fea103fc915ca01cb0e294df86739
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/140660
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
Change-Id: I42a47e821ff7a7f6cec65b38a8216cabbf0acfce
Reviewed-on: https://skia-review.googlesource.com/139860
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
This allows for legacy "skjson" to still work and
clusterfuzz's skia_pathops_fuzzer to be detected.
Bug: skia:831647
Change-Id: I3b06e7b9095599e29f35af9ad14a1a8820fe64c5
Reviewed-on: https://skia-review.googlesource.com/136063
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Kevin Lubick <kjlubick@google.com>
It's a tiny, core-ish component -- might as well treat as such to
simplify dependencies.
Change-Id: I6f31ce2d151f9a629d88bfc7f15d64891d5150c0
Reviewed-on: https://skia-review.googlesource.com/135780
Reviewed-by: Mike Klein <mtklein@google.com>
Reviewed-by: Kevin Lubick <kjlubick@google.com>
Commit-Queue: Florin Malita <fmalita@chromium.org>
Use std::swap instead. It does not appear that any external user
specializes SkTSwap, but some may still use it. This removes all use in
Skia so that SkTSwap can later be removed in a smaller CL. After that
the <utility> include can be removed from SkTypes.h.
Change-Id: If03d4ee07dbecda961aa9f0dc34d171ef5168753
Reviewed-on: https://skia-review.googlesource.com/135578
Reviewed-by: Hal Canary <halcanary@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
This reverts commit 2a2f675926.
Reason for revert: this appears to be what is holding up the Chrome roll.
Original change's description:
> SkTypes: extract SkTo
>
> Change-Id: I8de790d5013db2105ad885fa2683303d7c250b09
> Reviewed-on: https://skia-review.googlesource.com/133620
> Reviewed-by: Mike Klein <mtklein@google.com>
TBR=mtklein@google.com,halcanary@google.com
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Change-Id: Iafd738aedfb679a23c061a51afe4b98a8d4cdfae
Reviewed-on: https://skia-review.googlesource.com/134504
Reviewed-by: Hal Canary <halcanary@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
Spun off from the SkTFitsIn CL.
Change-Id: I686d680df6a36ebc02db3847ad5e2cedcbcd67ef
Reviewed-on: https://skia-review.googlesource.com/134083
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Mike Klein <mtklein@chromium.org>
For now this is only wired to a bench and a couple of tests.
Local numbers, for a ~500KB BM "compressed" json:
micros bench
2456.54 json_rapidjson nonrendering
1192.38 json_skjson nonrendering
Change-Id: I7b3514f84c7c525d1787722c43ad6095e3692563
Reviewed-on: https://skia-review.googlesource.com/127622
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Florin Malita <fmalita@chromium.org>
This was breaking the oss-fuzz build as is.
Bug: oss-fuzz:8701
Change-Id: I23ad21816a293356c91cd3bbc6276b2ed3ceafe6
Reviewed-on: https://skia-review.googlesource.com/132822
Commit-Queue: Kevin Lubick <kjlubick@google.com>
Auto-Submit: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
This also adds a little helper to fuzz that allows us to see what
GPU is being targeted.
This is the first step in getting a SwiftShader fuzz target.
To prove that this works, simply download this patch and run:
./docker/skia-with-swift-shader-base/build-with-swift-shader-and-run "out/with-swift-shader/fuzz --gpuInfo -t api -n NativeGLCanvas -b out/with-swift-shader/fiddle"
Running supplied command ['out/with-swift-shader/fuzz', '--gpuInfo', '-t', 'api', '-n', 'NativeGLCanvas', '-b', 'out/with-swift-shader/fiddle']
Fuzzing NativeGLCanvas...
GL_RENDERER Google SwiftShader
GL_VENDOR Google Inc.
GL_VERSION OpenGL ES 3.0 SwiftShader 4.0.0.6
Bug: skia:
Change-Id: I3cc11a6bcd14f70f6025011722f9a73c94cb1f65
Reviewed-on: https://skia-review.googlesource.com/132269
Reviewed-by: Joe Gregorio <jcgregorio@google.com>
Commit-Queue: Kevin Lubick <kjlubick@google.com>
I hypothesize that some backends look at the occluder and may have
accidentally (on purpose) been avoiding the linked bug.
Bug: skia:7956
Change-Id: If8d1de099f778b2faaa2c5ed4c562047b0dd14e7
Reviewed-on: https://skia-review.googlesource.com/131922
Commit-Queue: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Hal Canary <halcanary@google.com>
Of note, this is a breaking change to the fuzzed format
for any canvas fuzzers. I've updated the seed corpora to match
but any repro cases predating this will need to have the a single
byte added to the front of the test case:
echo -n -e '\x00' | cat - file > outputfile
Bug: 847386
Change-Id: I10b3b228e9c121340857fb8e7807464e54e9238a
Reviewed-on: https://skia-review.googlesource.com/131522
Auto-Submit: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Yuqian Li <liyuqian@google.com>
We're removing SkColorSpace::MakeICC() and replacing it with skcms.
The equivalent skcms_Parse() is already fuzzed.
Change-Id: Ic5c8f8c71976859b9892fdc6991aea90dac04eff
Reviewed-on: https://skia-review.googlesource.com/129652
Auto-Submit: Mike Klein <mtklein@chromium.org>
Commit-Queue: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Kevin Lubick <kjlubick@google.com>
