| // Copyright 2018 The Amber 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_VKSCRIPT_SECTION_PARSER_H_ |
| #define SRC_VKSCRIPT_SECTION_PARSER_H_ |
| |
| #include <memory> |
| #include <string> |
| #include <vector> |
| |
| #include "amber/result.h" |
| #include "amber/shader_info.h" |
| |
| namespace amber { |
| namespace vkscript { |
| |
| enum class NodeType : uint8_t { |
| kComment = 0, |
| kShader, |
| kIndices, |
| kVertexData, |
| kRequire, |
| kTest, |
| }; |
| |
| /// Parses the VkScript into the general sections. This includes things like |
| /// the [test], [indices], [vertex data], etc. |
| class SectionParser { |
| public: |
| /// Structure describing a single section of the VkScript document. |
| struct Section { |
| NodeType section_type; |
| ShaderType shader_type; // Only valid when section_type == kShader |
| ShaderFormat format; |
| size_t starting_line_number; |
| std::string contents; |
| }; |
| |
| static bool HasShader(const NodeType type); |
| |
| SectionParser(); |
| ~SectionParser(); |
| |
| Result Parse(const std::string& data); |
| const std::vector<Section>& Sections() const { return sections_; } |
| |
| Result SplitSectionsForTesting(const std::string& data) { |
| return SplitSections(data); |
| } |
| |
| Result NameToNodeTypeForTesting(const std::string& name, |
| NodeType* section_type, |
| ShaderType* shader_type, |
| ShaderFormat* fmt) const { |
| return NameToNodeType(name, section_type, shader_type, fmt); |
| } |
| |
| private: |
| Result SplitSections(const std::string& data); |
| void AddSection(NodeType section_type, |
| ShaderType shader_type, |
| ShaderFormat fmt, |
| size_t starting_line_number, |
| const std::string& contents); |
| Result NameToNodeType(const std::string& name, |
| NodeType* section_type, |
| ShaderType* shader_type, |
| ShaderFormat* fmt) const; |
| |
| std::vector<Section> sections_; |
| }; |
| |
| } // namespace vkscript |
| } // namespace amber |
| |
| #endif // SRC_VKSCRIPT_SECTION_PARSER_H_ |