From b56a50064caf2a590ba43699e0074690fcd431bf Mon Sep 17 00:00:00 2001 From: Jeff McGlynn Date: Wed, 20 Jun 2018 11:34:20 -0700 Subject: Initial version of astc-codec for open source release Contains an implementation of an ASTC decoder that is able to pass the dEQP ASTC LDR tests. astc-codec has no external dependencies for the main library, only for test code, and is licensed under the Apache license. Components: include/ - Public API that can decode ASTC LDR data into a RGBA UNORM8 buffer. src/base/ - Base library with common functionality not directly related to ASTC decoding. Contains a uint128 implementation, BitStream for reading/writing bits with a primitive (or uint128 type), Optional implementation (to not take a dependency on C++17), and more. src/decoder/ - Internal implementation of the ASTC decoder. src/base/test/, src/decoder/test/ - Unit tests (and a fuzzing test) for the astc decoder. src/decoder/testdata/ - Sample ASTC images and golden image results for testing. src/decoder/tools/ - A tool to inspect contents of an ASTC file. third_party/ - Third party libraries, only used for tests. Change-Id: Ia98e5a7dc847daa3d3a48c5e62d94b8fb1cb98bd --- src/decoder/test/astc_fuzzer.cc | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 src/decoder/test/astc_fuzzer.cc (limited to 'src/decoder/test/astc_fuzzer.cc') diff --git a/src/decoder/test/astc_fuzzer.cc b/src/decoder/test/astc_fuzzer.cc new file mode 100644 index 0000000..f152675 --- /dev/null +++ b/src/decoder/test/astc_fuzzer.cc @@ -0,0 +1,36 @@ +// Copyright 2018 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. + +// ASTC fuzzing wrapper to help with fuzz testing. + +#include "src/decoder/codec.h" + +#include + +#include + +extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) { + std::string error; + std::unique_ptr file = + astc_codec::ASTCFile::LoadFromMemory(reinterpret_cast(data), + size, &error); + if (file) { + std::vector out_buffer(file->GetWidth() * file->GetHeight() * 4); + bool result = astc_codec::DecompressToImage( + *file, out_buffer.data(), out_buffer.size(), file->GetWidth() * 4); + benchmark::DoNotOptimize(result); + } + + return 0; +} -- cgit v1.2.3