| /* |
| * Copyright 2021 Google LLC |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SKSL_DSLCPPCODEGENERATOR |
| #define SKSL_DSLCPPCODEGENERATOR |
| |
| #include "src/sksl/SkSLSectionAndParameterHelper.h" |
| #include "src/sksl/codegen/SkSLGLSLCodeGenerator.h" |
| |
| #include <set> |
| |
| #if defined(SKSL_STANDALONE) || GR_TEST_UTILS |
| |
| namespace SkSL { |
| |
| class DSLCPPCodeGenerator : public GLSLCodeGenerator { |
| public: |
| DSLCPPCodeGenerator(const Context* context, const Program* program, ErrorReporter* errors, |
| String name, OutputStream* out); |
| |
| bool generateCode() override; |
| |
| private: |
| using Precedence = Operator::Precedence; |
| |
| void writeAnyConstructor(const AnyConstructor& c, Precedence parentPrecedence) override; |
| |
| void writeBlock(const Block& b); |
| |
| void writeCastConstructor(const AnyConstructor& c, Precedence parentPrecedence) override; |
| |
| void writeDoStatement(const DoStatement& d); |
| |
| void writeFloatLiteral(const FloatLiteral& f) override; |
| |
| void writeForStatement(const ForStatement& f); |
| |
| void writeFunctionBody(const Block& b); |
| |
| void writeIfStatement(const IfStatement& r) override; |
| |
| void writeReturnStatement(const ReturnStatement& r) override; |
| |
| void writeStatement(const Statement& s); |
| |
| void writeSwitchStatement(const SwitchStatement& s) override; |
| |
| void writeTernaryExpression(const TernaryExpression& t, Precedence parentPrecedence) override; |
| |
| void writeVar(const Variable& var); |
| |
| void writeVarCtorExpression(const Variable& var); |
| |
| void writeVarDeclaration(const VarDeclaration& var, bool global); |
| |
| void writef(const char* s, va_list va) SK_PRINTF_LIKE(2, 0); |
| |
| void writef(const char* s, ...) SK_PRINTF_LIKE(2, 3); |
| |
| bool writeSection(const char* name, const char* prefix = ""); |
| |
| void writeHeader() override; |
| |
| void writeCppInitialValue(const Variable& var); |
| |
| bool usesPrecisionModifiers() const override; |
| |
| String getTypeName(const Type& type) override; |
| |
| String getDSLType(const Type& type); |
| |
| String getDSLModifiers(const Modifiers& type); |
| |
| String getDefaultDSLValue(const Variable& var); |
| |
| void writeSwizzle(const Swizzle& swizzle) override; |
| |
| void writeVariableReference(const VariableReference& ref) override; |
| |
| void writeFunctionCall(const FunctionCall& c) override; |
| |
| void writeFunction(const FunctionDefinition& f) override; |
| |
| void prepareHelperFunction(const FunctionDeclaration& decl); |
| |
| void prototypeHelperFunction(const FunctionDeclaration& decl); |
| |
| void writeSetting(const Setting& s) override; |
| |
| void writeProgramElement(const ProgramElement& p) override; |
| |
| void addUniform(const Variable& var); |
| |
| // writes a printf escape that will be filled in at runtime by the given C++ expression string |
| String formatRuntimeValue(const Type& type, const Layout& layout, const String& cppCode, |
| std::vector<String>* formatArgs); |
| |
| void writeInputVars() override; |
| |
| void writePrivateVars(); |
| |
| void writePrivateVarValues(); |
| |
| bool writeEmitCode(std::vector<const Variable*>& uniforms); |
| |
| void writeSetData(std::vector<const Variable*>& uniforms); |
| |
| void writeGetKey(); |
| |
| void writeClone(); |
| |
| void writeDumpInfo(); |
| |
| void writeTest(); |
| |
| int getChildFPIndex(const Variable& var) const; |
| |
| const char* getVariableCppName(const Variable& var); |
| |
| String fName; |
| String fFullName; |
| SectionAndParameterHelper fSectionAndParameterHelper; |
| std::unordered_map<const Variable*, String> fVariableCppNames; |
| |
| // true if the sksl declared its main() function with a float2 parameter AND referenced that |
| // parameter in its body. |
| bool fAccessSampleCoordsDirectly = false; |
| |
| // If true, we are writing a C++ expression instead of a GLSL expression |
| bool fCPPMode = false; |
| |
| // True while compiling the main() function of the FP. |
| bool fInMain = false; |
| |
| using INHERITED = GLSLCodeGenerator; |
| }; |
| |
| } // namespace SkSL |
| |
| #endif // defined(SKSL_STANDALONE) || GR_TEST_UTILS |
| |
| #endif // SKSL_DSLCPPCODEGENERATOR |