13872ddc56
Also: assert Region IRects don't contain Sentinel value. Also: Region fuzzer can't produce Sentinel value. Change-Id: Ia33c7eeb9ef2c46b3da4a025d85de8a0406c3c0c Reviewed-on: https://skia-review.googlesource.com/119011 Reviewed-by: Kevin Lubick <kjlubick@google.com> Reviewed-by: Cary Clark <caryclark@google.com> Commit-Queue: Hal Canary <halcanary@google.com>
63 lines
1.8 KiB
C++
63 lines
1.8 KiB
C++
/*
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* Copyright 2018 Google, LLC
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef FuzzCommon_DEFINED
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#define FuzzCommon_DEFINED
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#include "Fuzz.h"
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#include "SkPath.h"
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#include "SkRegion.h"
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// We don't always want to test NaNs and infinities.
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static inline void fuzz_nice_float(Fuzz* fuzz, float* f) {
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float v;
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fuzz->next(&v);
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constexpr float kLimit = 1.0e35f; // FLT_MAX?
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*f = (v == v && v <= kLimit && v >= -kLimit) ? v : 0.0f;
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}
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template <typename... Args>
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inline void fuzz_nice_float(Fuzz* fuzz, float* f, Args... rest) {
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fuzz_nice_float(fuzz, f);
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fuzz_nice_float(fuzz, rest...);
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}
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template <typename T, typename Min, typename Max>
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inline void fuzz_enum_range(Fuzz* fuzz, T* value, Min rmin, Max rmax) {
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using U = skstd::underlying_type_t<T>;
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fuzz->nextRange((U*)value, (U)rmin, (U)rmax);
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}
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inline void fuzz_region(Fuzz* fuzz, SkRegion* region, int maxN) {
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uint8_t N;
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fuzz->nextRange(&N, 0, maxN);
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for (uint8_t i = 0; i < N; ++i) {
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SkIRect r;
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SkRegion::Op op;
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// Avoid the sentinal value used by Region.
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fuzz->nextRange(&r.fLeft, -2147483646, 2147483646);
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fuzz->nextRange(&r.fTop, -2147483646, 2147483646);
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fuzz->nextRange(&r.fRight, -2147483646, 2147483646);
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fuzz->nextRange(&r.fBottom, -2147483646, 2147483646);
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r.sort();
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fuzz_enum_range(fuzz, &op, (SkRegion::Op)0, SkRegion::kLastOp);
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if (!region->op(r, op)) {
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return;
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}
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}
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}
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template <>
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inline void Fuzz::next(SkRegion* region) { fuzz_region(this, region, 10); }
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// allows some float values for path points
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void FuzzPath(Fuzz* fuzz, SkPath* path, int maxOps);
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// allows all float values for path points
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void BuildPath(Fuzz* fuzz, SkPath* path, int last_verb);
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#endif
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