blob: 35a00bf85a237f65d530282383ece39ef49f49c5 [file] [log] [blame]
/*
* 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.h"
#include "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));
}