skia2/fuzz/FuzzCommon.h
Cary Clark 91390c8ace pathmeasure fuzzer
R=kjlubick@google.com, reed@google.com
Bug: skia:
Change-Id: I16a8b09312e5d1d1783bd6a4b791636ad8f63889
Reviewed-on: https://skia-review.googlesource.com/113165
Reviewed-by: Mike Reed <reed@google.com>
Reviewed-by: Kevin Lubick <kjlubick@google.com>
Commit-Queue: Cary Clark <caryclark@skia.org>
2018-03-12 15:29:18 +00:00

51 lines
1.2 KiB
C++

/*
* Copyright 2018 Google, LLC
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef FuzzCommon_DEFINED
#define FuzzCommon_DEFINED
#include "Fuzz.h"
#include "SkPath.h"
#include "SkRegion.h"
// We don't always want to test NaNs and infinities.
static inline void fuzz_nice_float(Fuzz* fuzz, float* f) {
float v;
fuzz->next(&v);
constexpr float kLimit = 1.0e35f; // FLT_MAX?
*f = (v == v && v <= kLimit && v >= -kLimit) ? v : 0.0f;
}
template <typename... Args>
inline void fuzz_nice_float(Fuzz* fuzz, float* f, Args... rest) {
fuzz_nice_float(fuzz, f);
fuzz_nice_float(fuzz, rest...);
}
template <>
inline void Fuzz::next(SkRegion* region) {
uint8_t N;
this->nextRange(&N, 0, 10);
for (uint8_t i = 0; i < N; ++i) {
SkIRect r;
uint8_t op;
this->next(&r);
r.sort();
this->nextRange(&op, 0, (uint8_t)SkRegion::kLastOp);
if (!region->op(r, (SkRegion::Op)op)) {
return;
}
}
}
// allows some float values for path points
void FuzzPath(Fuzz* fuzz, SkPath* path, int maxOps);
// allows all float values for path points
void BuildPath(Fuzz* fuzz, SkPath* path, int last_verb);
#endif