| ///////////////////////////////////////////////////////////////////////// |
| // |
| // Author: Mateusz Jurczyk (mjurczyk@google.com) |
| // |
| // Copyright 2020 Google LLC |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // https://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // |
| |
| #include <cstdio> |
| #include <string> |
| |
| #include "SkAndroidCodec.h" |
| #include "SkBitmap.h" |
| #include "SkCodec.h" |
| #include "SkString.h" |
| |
| #include "fuzzer/FuzzedDataProvider.h" |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| static int getAndroidPixels(std::string& contents, bool requestPremul) { |
| // Generate stream contents |
| std::unique_ptr<SkMemoryStream> stream = SkMemoryStream::MakeDirect(contents.data(), contents.size()); |
| if (!stream) { |
| return 0; |
| } |
| |
| std::unique_ptr<SkCodec> c = SkCodec::MakeFromStream(std::move(stream), |
| nullptr); |
| if (!c) { |
| return 0; |
| } |
| |
| std::unique_ptr<SkAndroidCodec> codec; |
| codec = SkAndroidCodec::MakeFromCodec(std::move(c)); |
| if (!codec) { |
| return 0; |
| } |
| |
| SkImageInfo info = codec->getInfo(); |
| const int width = info.width(); |
| const int height = info.height(); |
| |
| SkColorType decodeColorType = kN32_SkColorType; |
| SkAlphaType alphaType = |
| codec->computeOutputAlphaType(requestPremul); |
| const SkImageInfo decodeInfo = |
| SkImageInfo::Make(width, height, decodeColorType, alphaType); |
| |
| SkImageInfo bitmapInfo = decodeInfo; |
| SkBitmap decodingBitmap; |
| if (!decodingBitmap.tryAllocPixels(bitmapInfo)) { |
| return 0; |
| } |
| |
| codec->getAndroidPixels( |
| decodeInfo, decodingBitmap.getPixels(), decodingBitmap.rowBytes()); |
| return 0; |
| } |
| |
| extern "C" int LLVMFuzzerTestOneInput(char *data, size_t size) { |
| if (size == 0) { |
| return 0; |
| } |
| |
| std::string sdata1(data, size); |
| getAndroidPixels(sdata1, true); |
| std::string sdata2(data, size); |
| getAndroidPixels(sdata2, false); |
| return 0; |
| } |