71 lines
2.4 KiB
C++
71 lines
2.4 KiB
C++
// Copyright 2021 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef SRC_TINT_FUZZERS_TINT_READER_WRITER_FUZZER_H_
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#define SRC_TINT_FUZZERS_TINT_READER_WRITER_FUZZER_H_
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#include <memory>
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#include "src/tint/fuzzers/tint_common_fuzzer.h"
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#include "src/tint/fuzzers/transform_builder.h"
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namespace tint::fuzzers {
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/// Wrapper around the common fuzzing class for tint_*_reader_*_writter fuzzers
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class ReaderWriterFuzzer : public CommonFuzzer {
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public:
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/// Constructor
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/// Pass through to the CommonFuzzer constructor
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/// @param input shader language being read
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/// @param output shader language being emitted
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ReaderWriterFuzzer(InputFormat input, OutputFormat output)
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: CommonFuzzer(input, output) {}
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/// Destructor
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~ReaderWriterFuzzer() {}
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/// Pass through to the CommonFuzzer setter, but records if it has been
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/// invoked.
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/// @param tm manager for transforms to run
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/// @param inputs data for transforms to run
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void SetTransformManager(transform::Manager* tm, transform::DataMap* inputs) {
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tm_set_ = true;
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CommonFuzzer::SetTransformManager(tm, inputs);
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}
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/// Pass through to the CommonFuzzer implementation, but will setup a
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/// robustness transform, if no other transforms have been set.
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/// @param data buffer of data that will interpreted as a byte array or string
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/// depending on the shader input format.
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/// @param size number of elements in buffer
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/// @returns 0, this is what libFuzzer expects
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int Run(const uint8_t* data, size_t size) {
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if (!tm_set_) {
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tb_ = std::make_unique<TransformBuilder>(data, size);
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tb_->AddTransform<tint::transform::Robustness>();
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SetTransformManager(tb_->manager(), tb_->data_map());
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}
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return CommonFuzzer::Run(data, size);
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}
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private:
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bool tm_set_ = false;
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std::unique_ptr<TransformBuilder> tb_;
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};
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} // namespace tint::fuzzers
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#endif // SRC_TINT_FUZZERS_TINT_READER_WRITER_FUZZER_H_
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