145 lines
3.7 KiB
C++
145 lines
3.7 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 FUZZERS_TINT_COMMON_FUZZER_H_
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#define FUZZERS_TINT_COMMON_FUZZER_H_
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#include <cstring>
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#include <string>
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#include <utility>
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#include <vector>
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#include "include/tint/tint.h"
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namespace tint {
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namespace fuzzers {
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class Reader {
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public:
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Reader(const uint8_t* data, size_t size);
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bool failed() const { return failed_; }
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const uint8_t* data() { return data_; }
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size_t size() const { return size_; }
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template <typename T>
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T read() {
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T out{};
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read(&out, sizeof(T));
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return out;
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}
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std::string string();
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template <typename T>
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std::vector<T> vector() {
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auto count = read<uint8_t>();
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if (failed_ || size_ < count) {
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mark_failed();
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return {};
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}
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std::vector<T> out(count);
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if (!out.empty()) {
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memcpy(out.data(), data_, count * sizeof(T));
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data_ += count * sizeof(T);
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size_ -= count * sizeof(T);
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}
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return out;
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}
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template <typename T>
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std::vector<T> vector(T (*extract)(Reader*)) {
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auto count = read<uint8_t>();
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if (size_ < count) {
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mark_failed();
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return {};
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}
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std::vector<T> out(count);
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for (uint8_t i = 0; i < count; i++) {
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out[i] = extract(this);
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}
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return out;
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}
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template <typename T>
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T enum_class(uint8_t count) {
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auto val = read<uint8_t>();
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return static_cast<T>(val % count);
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}
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private:
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void mark_failed();
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void read(void* out, size_t n);
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const uint8_t* data_;
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size_t size_;
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bool failed_ = false;
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};
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void ExtractBindingRemapperInputs(Reader* r, tint::transform::DataMap* inputs);
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void ExtractFirstIndexOffsetInputs(Reader* r, tint::transform::DataMap* inputs);
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void ExtractSingleEntryPointInputs(Reader* r, tint::transform::DataMap* inputs);
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void ExtractVertexPullingInputs(Reader* r, tint::transform::DataMap* inputs);
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enum class InputFormat { kWGSL, kSpv, kNone };
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enum class OutputFormat { kWGSL, kSpv, kHLSL, kMSL, kNone };
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class CommonFuzzer {
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public:
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explicit CommonFuzzer(InputFormat input, OutputFormat output);
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~CommonFuzzer();
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void SetTransformManager(transform::Manager* tm, transform::DataMap inputs) {
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transform_manager_ = tm;
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transform_inputs_ = std::move(inputs);
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}
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void EnableInspector() { inspector_enabled_ = true; }
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int Run(const uint8_t* data, size_t size);
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const std::vector<uint32_t>& GetGeneratedSpirv() const {
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return generated_spirv_;
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}
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const std::string& GetGeneratedWgsl() const { return generated_wgsl_; }
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const std::string& GetGeneratedHlsl() const { return generated_hlsl_; }
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const std::string& GetGeneratedMsl() const { return generated_msl_; }
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const tint::diag::List& Diagnostics() const { return diagnostics_; }
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bool HasErrors() const { return diagnostics_.contains_errors(); }
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private:
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InputFormat input_;
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OutputFormat output_;
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transform::Manager* transform_manager_;
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transform::DataMap transform_inputs_;
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bool inspector_enabled_;
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tint::diag::List diagnostics_;
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std::vector<uint32_t> generated_spirv_;
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std::string generated_wgsl_;
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std::string generated_hlsl_;
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std::string generated_msl_;
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};
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} // namespace fuzzers
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} // namespace tint
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#endif // FUZZERS_TINT_COMMON_FUZZER_H_
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