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/*
* 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 <typename T, typename Min, typename Max>
inline void fuzz_enum_range(Fuzz* fuzz, T* value, Min rmin, Max rmax) {
using U = skstd::underlying_type_t<T>;
fuzz->nextRange((U*)value, (U)rmin, (U)rmax);
}
inline void fuzz_region(Fuzz* fuzz, SkRegion* region, int maxN) {
uint8_t N;
fuzz->nextRange(&N, 0, maxN);
for (uint8_t i = 0; i < N; ++i) {
SkIRect r;
SkRegion::Op op;
// Avoid the sentinal value used by Region.
fuzz->nextRange(&r.fLeft, -2147483646, 2147483646);
fuzz->nextRange(&r.fTop, -2147483646, 2147483646);
fuzz->nextRange(&r.fRight, -2147483646, 2147483646);
fuzz->nextRange(&r.fBottom, -2147483646, 2147483646);
r.sort();
fuzz_enum_range(fuzz, &op, (SkRegion::Op)0, SkRegion::kLastOp);
if (!region->op(r, op)) {
return;
}
}
}
template <>
inline void Fuzz::next(SkRegion* region) { fuzz_region(this, region, 10); }
// 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
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