| // Copyright 2021 The Tint Authors. |
| // |
| // 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 |
| // |
| // http://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. |
| |
| #ifndef SRC_TINT_FUZZERS_TINT_READER_WRITER_FUZZER_H_ |
| #define SRC_TINT_FUZZERS_TINT_READER_WRITER_FUZZER_H_ |
| |
| #include <memory> |
| |
| #include "src/tint/fuzzers/tint_common_fuzzer.h" |
| #include "src/tint/fuzzers/transform_builder.h" |
| |
| namespace tint::fuzzers { |
| |
| /// Wrapper around the common fuzzing class for tint_*_reader_*_writter fuzzers |
| class ReaderWriterFuzzer : public CommonFuzzer { |
| public: |
| /// Constructor |
| /// Pass through to the CommonFuzzer constructor |
| /// @param input shader language being read |
| /// @param output shader language being emitted |
| ReaderWriterFuzzer(InputFormat input, OutputFormat output) |
| : CommonFuzzer(input, output) {} |
| |
| /// Destructor |
| ~ReaderWriterFuzzer() {} |
| |
| /// Pass through to the CommonFuzzer setter, but records if it has been |
| /// invoked. |
| /// @param tm manager for transforms to run |
| /// @param inputs data for transforms to run |
| void SetTransformManager(transform::Manager* tm, transform::DataMap* inputs) { |
| tm_set_ = true; |
| CommonFuzzer::SetTransformManager(tm, inputs); |
| } |
| |
| /// Pass through to the CommonFuzzer implementation, but will setup a |
| /// robustness transform, if no other transforms have been set. |
| /// @param data buffer of data that will interpreted as a byte array or string |
| /// depending on the shader input format. |
| /// @param size number of elements in buffer |
| /// @returns 0, this is what libFuzzer expects |
| int Run(const uint8_t* data, size_t size) { |
| if (!tm_set_) { |
| tb_ = std::make_unique<TransformBuilder>(data, size); |
| tb_->AddTransform<tint::transform::Robustness>(); |
| SetTransformManager(tb_->manager(), tb_->data_map()); |
| } |
| |
| return CommonFuzzer::Run(data, size); |
| } |
| |
| private: |
| bool tm_set_ = false; |
| std::unique_ptr<TransformBuilder> tb_; |
| }; |
| |
| } // namespace tint::fuzzers |
| |
| #endif // SRC_TINT_FUZZERS_TINT_READER_WRITER_FUZZER_H_ |