skia2/fuzz/oss_fuzz/FuzzRegionDeserialize.cpp
Cary Clark 6943689ab4 clean up includes
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>
2018-08-06 14:49:46 +00:00

44 lines
1.1 KiB
C++

/*
* Copyright 2018 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkCanvas.h"
#include "SkPaint.h"
#include "SkRegionPriv.h"
#include "SkSurface.h"
bool FuzzRegionDeserialize(sk_sp<SkData> bytes) {
SkRegion region;
if (!region.readFromMemory(bytes->data(), bytes->size())) {
return false;
}
region.computeRegionComplexity();
region.isComplex();
SkRegion r2;
if (region == r2) {
region.contains(0,0);
} else {
region.contains(1,1);
}
auto s = SkSurface::MakeRasterN32Premul(128, 128);
if (!s) {
// May return nullptr in memory-constrained fuzzing environments
return false;
}
s->getCanvas()->drawRegion(region, SkPaint());
SkDEBUGCODE(SkRegionPriv::Validate(region));
return true;
}
#if defined(IS_FUZZING_WITH_LIBFUZZER)
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
auto bytes = SkData::MakeWithoutCopy(data, size);
FuzzRegionDeserialize(bytes);
return 0;
}
#endif