1cb93a386Sopenharmony_ci/* 2cb93a386Sopenharmony_ci * Copyright 2018 Google, LLC 3cb93a386Sopenharmony_ci * 4cb93a386Sopenharmony_ci * Use of this source code is governed by a BSD-style license that can be 5cb93a386Sopenharmony_ci * found in the LICENSE file. 6cb93a386Sopenharmony_ci */ 7cb93a386Sopenharmony_ci 8cb93a386Sopenharmony_ci#include "include/core/SkCanvas.h" 9cb93a386Sopenharmony_ci#include "include/core/SkData.h" 10cb93a386Sopenharmony_ci#include "include/core/SkImage.h" 11cb93a386Sopenharmony_ci#include "include/core/SkPaint.h" 12cb93a386Sopenharmony_ci#include "include/core/SkSurface.h" 13cb93a386Sopenharmony_ci 14cb93a386Sopenharmony_cibool FuzzImageDecode(sk_sp<SkData> bytes) { 15cb93a386Sopenharmony_ci auto img = SkImage::MakeFromEncoded(bytes); 16cb93a386Sopenharmony_ci if (nullptr == img.get()) { 17cb93a386Sopenharmony_ci return false; 18cb93a386Sopenharmony_ci } 19cb93a386Sopenharmony_ci 20cb93a386Sopenharmony_ci auto s = SkSurface::MakeRasterN32Premul(128, 128); 21cb93a386Sopenharmony_ci if (!s) { 22cb93a386Sopenharmony_ci // May return nullptr in memory-constrained fuzzing environments 23cb93a386Sopenharmony_ci return false; 24cb93a386Sopenharmony_ci } 25cb93a386Sopenharmony_ci 26cb93a386Sopenharmony_ci s->getCanvas()->drawImage(img, 0, 0); 27cb93a386Sopenharmony_ci return true; 28cb93a386Sopenharmony_ci} 29cb93a386Sopenharmony_ci 30cb93a386Sopenharmony_ci// TODO(kjlubick): remove IS_FUZZING... after https://crrev.com/c/2410304 lands 31cb93a386Sopenharmony_ci#if defined(SK_BUILD_FOR_LIBFUZZER) || defined(IS_FUZZING_WITH_LIBFUZZER) 32cb93a386Sopenharmony_ciextern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { 33cb93a386Sopenharmony_ci if (size > 10240) { 34cb93a386Sopenharmony_ci return 0; 35cb93a386Sopenharmony_ci } 36cb93a386Sopenharmony_ci auto bytes = SkData::MakeWithoutCopy(data, size); 37cb93a386Sopenharmony_ci FuzzImageDecode(bytes); 38cb93a386Sopenharmony_ci return 0; 39cb93a386Sopenharmony_ci} 40cb93a386Sopenharmony_ci#endif 41