| // Copyright 2020 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_TRANSFORM_ROBUSTNESS_H_ |
| #define SRC_TINT_TRANSFORM_ROBUSTNESS_H_ |
| |
| #include <unordered_set> |
| |
| #include "src/tint/transform/transform.h" |
| |
| // Forward declarations |
| namespace tint::ast { |
| class IndexAccessorExpression; |
| class CallExpression; |
| } // namespace tint::ast |
| |
| namespace tint::transform { |
| |
| /// This transform is responsible for clamping all array accesses to be within |
| /// the bounds of the array. Any access before the start of the array will clamp |
| /// to zero and any access past the end of the array will clamp to |
| /// (array length - 1). |
| class Robustness final : public Castable<Robustness, Transform> { |
| public: |
| /// Storage class to be skipped in the transform |
| enum class StorageClass { |
| kUniform, |
| kStorage, |
| }; |
| |
| /// Configuration options for the transform |
| struct Config final : public Castable<Config, Data> { |
| /// Constructor |
| Config(); |
| |
| /// Copy constructor |
| Config(const Config&); |
| |
| /// Destructor |
| ~Config() override; |
| |
| /// Assignment operator |
| /// @returns this Config |
| Config& operator=(const Config&); |
| |
| /// Storage classes to omit from apply the transform to. |
| /// This allows for optimizing on hardware that provide safe accesses. |
| std::unordered_set<StorageClass> omitted_classes; |
| }; |
| |
| /// Constructor |
| Robustness(); |
| /// Destructor |
| ~Robustness() override; |
| |
| protected: |
| /// Runs the transform using the CloneContext built for transforming a |
| /// program. Run() is responsible for calling Clone() on the CloneContext. |
| /// @param ctx the CloneContext primed with the input program and |
| /// ProgramBuilder |
| /// @param inputs optional extra transform-specific input data |
| /// @param outputs optional extra transform-specific output data |
| void Run(CloneContext& ctx, const DataMap& inputs, DataMap& outputs) const override; |
| |
| private: |
| struct State; |
| }; |
| |
| } // namespace tint::transform |
| |
| #endif // SRC_TINT_TRANSFORM_ROBUSTNESS_H_ |