| // 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_TRANSFORM_GLSL_H_ |
| #define SRC_TRANSFORM_GLSL_H_ |
| |
| #include <string> |
| |
| #include "src/transform/transform.h" |
| |
| namespace tint { |
| |
| // Forward declarations |
| class CloneContext; |
| |
| namespace transform { |
| |
| /// Glsl is a transform used to sanitize a Program for use with the Glsl writer. |
| /// Passing a non-sanitized Program to the Glsl writer will result in undefined |
| /// behavior. |
| class Glsl : public Castable<Glsl, Transform> { |
| public: |
| /// Configuration options for the Glsl sanitizer transform. |
| struct Config : public Castable<Data, transform::Data> { |
| /// Constructor |
| /// @param entry_point the root entry point function to generate |
| /// @param disable_workgroup_init `true` to disable workgroup memory zero |
| /// initialization |
| explicit Config(const std::string& entry_point, |
| bool disable_workgroup_init = false); |
| |
| /// Copy constructor |
| Config(const Config&); |
| |
| /// Destructor |
| ~Config() override; |
| |
| /// GLSL generator wraps a single entry point in a main() function. |
| std::string entry_point; |
| |
| /// Set to `true` to disable workgroup memory zero initialization |
| bool disable_workgroup_init = false; |
| }; |
| |
| /// Constructor |
| Glsl(); |
| ~Glsl() override; |
| |
| /// Runs the transform on `program`, returning the transformation result. |
| /// @param program the source program to transform |
| /// @param data optional extra transform-specific data |
| /// @returns the transformation result |
| Output Run(const Program* program, const DataMap& data = {}) override; |
| |
| private: |
| /// Add an empty shader entry point if none exist in the module. |
| void AddEmptyEntryPoint(CloneContext& ctx) const; |
| }; |
| |
| } // namespace transform |
| } // namespace tint |
| |
| #endif // SRC_TRANSFORM_GLSL_H_ |