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skia2/fuzz
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Weston Tracey 6d4577bc52 [fuzzing] Add first pass SkParagraph fuzzing. 
Rough first pass at SkParagraph fuzzing. Lots of things not yet fuzzed.
--FontCollection cribbed from SkParagraphTest
--Current flow:
---Fuzz ParagraphStyle
---Add text and style some random small number of times.
---Text is either ASCII, unicode, or 'Zalgo'.

Although there are many todos, want to go ahead and submit this
~unchanged so the existing test cases that have found bugs are
not invalidated by a changing binary.

Change-Id: I38adca5fa79cfb20068fdf2fb431f90de55a2afc
Bug: skia:10894
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/336438
Commit-Queue: Weston Tracey <westont@google.com>
Reviewed-by: Kevin Lubick <kjlubick@google.com>
2020-12-30 19:24:17 +00:00
..
oss_fuzz SkSL: In the front-end, rename PipelineStage to RuntimeEffect 2020-12-21 21:23:17 +00:00
coverage
Fuzz.cpp
Fuzz.h don't create out of range enums 2019-12-12 16:04:45 +00:00
FuzzCanvas.cpp Starting to hide setFilterQuality 2020-12-19 20:56:50 +00:00
FuzzCommon.cpp Hide shrinkToFit -- not needed now that we have pathbuilder 2020-10-15 19:47:06 +00:00
FuzzCommon.h
FuzzCreateDDL.cpp Handle null GrDirectContext in DDL Fuzzer 2020-07-31 18:12:53 +00:00
FuzzDrawFunctions.cpp Use bitmap.asImage() 2020-12-23 17:41:47 +00:00
FuzzEncoders.cpp Add GrDirectContext arg to SkImage::readPixels 2020-08-27 19:26:29 +00:00
FuzzGradients.cpp
FuzzMain.cpp Enable ClangTidy check readability-redundant-smartptr-get. 2020-08-16 15:56:48 +00:00
FuzzParsePath.cpp
FuzzPath.cpp add SKPath::readFromMemory() fuzzer 2020-08-12 17:40:16 +00:00
FuzzPathMeasure.cpp [fuzz] Standardize, document, and backport fuzzing defines. 2020-09-14 13:36:10 +00:00
FuzzPathop.cpp Revert "Revert "switch to new filltype for SkPath"" 2019-11-26 17:43:14 +00:00
FuzzPolyUtils.cpp Move SkImageFilter functionality into private SkImageFilter_Base 2019-08-02 18:56:39 +00:00
FuzzRegionOp.cpp
FuzzRRect.cpp add SkRRect::readFromMemory() fuzzer 2020-08-11 20:26:28 +00:00
FuzzSkParagraph.cpp [fuzzing] Add first pass SkParagraph fuzzing. 2020-12-30 19:24:17 +00:00
README.md [fuzz] Standardize, document, and backport fuzzing defines. 2020-09-14 13:36:10 +00:00

README.md

We fuzz Skia using oss-fuzz, which in turn uses fuzzing engines such as libfuzzer, afl-fuzz, hong-fuzz and others.

We define a fuzzer to be a targeted bit of code that takes a randomized input and executes code in a specific area. For example, we have a codec fuzzer which takes a mutated png/jpeg or similar file and attempts to turn it into an SkImage. We also have a canvas fuzzer which takes in a random set of bytes and turns them into calls on SkCanvas.

See [../site/dev/testing/fuzz.md] for more information on building and running fuzzers.

See also: