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- /*
- * Copyright 2016 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #include "fuzz/Fuzz.h"
- #include "fuzz/FuzzCommon.h"
- // UBSAN reminds us that bool can only legally hold 0 or 1.
- void Fuzz::next(bool* b) {
- uint8_t n;
- this->next(&n);
- *b = (n & 1) == 1;
- }
- void Fuzz::next(SkImageFilter::CropRect* cropRect) {
- SkRect rect;
- uint8_t flags;
- this->next(&rect);
- this->nextRange(&flags, 0, 0xF);
- *cropRect = SkImageFilter::CropRect(rect, flags);
- }
- void Fuzz::nextBytes(void* n, size_t size) {
- if ((fNextByte + size) > fBytes->size()) {
- sk_bzero(n, size);
- memcpy(n, fBytes->bytes() + fNextByte, fBytes->size() - fNextByte);
- fNextByte = fBytes->size();
- return;
- }
- memcpy(n, fBytes->bytes() + fNextByte, size);
- fNextByte += size;
- }
- void Fuzz::next(SkRegion* region) {
- // See FuzzCommon.h
- FuzzNiceRegion(this, region, 10);
- }
- void Fuzz::nextRange(float* f, float min, float max) {
- this->next(f);
- if (!std::isnormal(*f) && *f != 0.0f) {
- // Don't deal with infinity or other strange floats.
- *f = max;
- }
- *f = min + std::fmod(std::abs(*f), (max - min + 1));
- }
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