1 /* 2 * Copyright 2018 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 9 #include "SkCanvas.h" 10 #include "SkPaint.h" 11 #include "SkRegionPriv.h" 12 #include "SkSurface.h" 13 14 bool FuzzRegionDeserialize(sk_sp<SkData> bytes) { 15 SkRegion region; 16 if (!region.readFromMemory(bytes->data(), bytes->size())) { 17 return false; 18 } 19 region.computeRegionComplexity(); 20 region.isComplex(); 21 SkRegion r2; 22 if (region == r2) { 23 region.contains(0,0); 24 } else { 25 region.contains(1,1); 26 } 27 auto s = SkSurface::MakeRasterN32Premul(128, 128); 28 if (!s) { 29 // May return nullptr in memory-constrained fuzzing environments 30 return false; 31 } 32 s->getCanvas()->drawRegion(region, SkPaint()); 33 SkDEBUGCODE(SkRegionPriv::Validate(region)); 34 return true; 35 } 36 37 #if defined(IS_FUZZING_WITH_LIBFUZZER) 38 extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { 39 auto bytes = SkData::MakeWithoutCopy(data, size); 40 FuzzRegionDeserialize(bytes); 41 return 0; 42 } 43 #endif 44
