| /* |
| * Copyright 2016 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SKSL_COMPILER |
| #define SKSL_COMPILER |
| |
| #include <set> |
| #include <vector> |
| #include "ir/SkSLProgram.h" |
| #include "ir/SkSLSymbolTable.h" |
| #include "SkSLCFGGenerator.h" |
| #include "SkSLContext.h" |
| #include "SkSLErrorReporter.h" |
| #include "SkSLGLSLCodeGenerator.h" |
| |
| #define SK_FRAGCOLOR_BUILTIN 10001 |
| |
| namespace SkSL { |
| |
| class IRGenerator; |
| |
| /** |
| * Main compiler entry point. This is a traditional compiler design which first parses the .sksl |
| * file into an abstract syntax tree (a tree of ASTNodes), then performs semantic analysis to |
| * produce a Program (a tree of IRNodes), then feeds the Program into a CodeGenerator to produce |
| * compiled output. |
| * |
| * See the README for information about SkSL. |
| */ |
| class Compiler : public ErrorReporter { |
| public: |
| Compiler(); |
| |
| ~Compiler(); |
| |
| std::unique_ptr<Program> convertProgram(Program::Kind kind, std::string text); |
| |
| bool toSPIRV(Program::Kind kind, const std::string& text, std::ostream& out); |
| |
| bool toSPIRV(Program::Kind kind, const std::string& text, std::string* out); |
| |
| bool toGLSL(Program::Kind kind, const std::string& text, GLCaps caps, std::ostream& out); |
| |
| bool toGLSL(Program::Kind kind, const std::string& text, GLCaps caps, std::string* out); |
| |
| void error(Position position, std::string msg) override; |
| |
| std::string errorText(); |
| |
| void writeErrorCount(); |
| |
| private: |
| void addDefinition(const Expression* lvalue, const Expression* expr, |
| std::unordered_map<const Variable*, const Expression*>* definitions); |
| |
| void addDefinitions(const BasicBlock::Node& node, |
| std::unordered_map<const Variable*, const Expression*>* definitions); |
| |
| void scanCFG(CFG* cfg, BlockId block, std::set<BlockId>* workList); |
| |
| void scanCFG(const FunctionDefinition& f); |
| |
| void internalConvertProgram(std::string text, |
| Modifiers::Flag* defaultPrecision, |
| std::vector<std::unique_ptr<ProgramElement>>* result); |
| |
| std::shared_ptr<SymbolTable> fTypes; |
| IRGenerator* fIRGenerator; |
| std::string fSkiaVertText; // FIXME store parsed version instead |
| |
| Context fContext; |
| int fErrorCount; |
| std::string fErrorText; |
| }; |
| |
| } // namespace |
| |
| #endif |