add create ddl fuzzer
This is an attempt to fuzz the usage of SkSurfaceCharacterization,
SkDeferredDisplayRecorder, and SkDeferredDisplayList.
This fuzzer first makes a surface and characterization from
GrDirectContext and then create a DDL and draw it on the surface.
The code is compiled with ninja and run with AFL at the speed around
600/sec
The future changes will include:
1. An alternative way to create DDL: first create the surface and
extract the characterization from that existing surface.
2.currently we just pass the ownership of the DDL into draw_ddl. In
the future we should add a version that retains ownership of the DDL
in order to fuzz the lifetime of the DDL.
3. Refactorize line 62-119
Change-Id: I9cd9736813be3abc82430bd4eeb559d6993ecbd4
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/303600
Commit-Queue: Zepeng Hu <zepenghu@google.com>
Reviewed-by: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
diff --git a/BUILD.gn b/BUILD.gn
index 627595d..33ceafd 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -2077,6 +2077,7 @@
"fuzz/Fuzz.cpp",
"fuzz/FuzzCanvas.cpp",
"fuzz/FuzzCommon.cpp",
+ "fuzz/FuzzCreateDDL.cpp",
"fuzz/FuzzDrawFunctions.cpp",
"fuzz/FuzzEncoders.cpp",
"fuzz/FuzzGradients.cpp",