1 /* 2 * Copyright 2017 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #ifndef SKSL_HCODEGENERATOR 9 #define SKSL_HCODEGENERATOR 10 11 #include "SkSLCodeGenerator.h" 12 #include "SkSLSectionAndParameterHelper.h" 13 #include "ir/SkSLType.h" 14 #include "ir/SkSLVariable.h" 15 16 #include <cctype> 17 18 constexpr const char* kFragmentProcessorHeader = 19 R"( 20 /************************************************************************************************** 21 *** This file was autogenerated from %s.fp; do not modify. 22 **************************************************************************************************/ 23 )"; 24 25 namespace SkSL { 26 27 class HCodeGenerator : public CodeGenerator { 28 public: 29 HCodeGenerator(const Context* context, const Program* program, ErrorReporter* errors, 30 String name, OutputStream* out); 31 32 bool generateCode() override; 33 34 static String ParameterType(const Context& context, const Type& type, const Layout& layout); 35 36 static Layout::CType ParameterCType(const Context& context, const Type& type, 37 const Layout& layout); 38 39 static String FieldType(const Context& context, const Type& type, const Layout& layout); 40 41 // Either the field type, or a const reference of the field type if the field type is complex. 42 static String AccessType(const Context& context, const Type& type, const Layout& layout); 43 FieldName(const char * varName)44 static String FieldName(const char* varName) { 45 return String::printf("f%c%s", toupper(varName[0]), varName + 1); 46 } 47 CoordTransformName(const String & arg,int index)48 static String CoordTransformName(const String& arg, int index) { 49 if (arg.size()) { 50 return HCodeGenerator::FieldName(arg.c_str()) + "CoordTransform"; 51 } 52 return "fCoordTransform" + to_string(index); 53 } 54 55 static String GetHeader(const Program& program, ErrorReporter& errors); 56 57 private: 58 void writef(const char* s, va_list va) SKSL_PRINTF_LIKE(2, 0); 59 60 void writef(const char* s, ...) SKSL_PRINTF_LIKE(2, 3); 61 62 bool writeSection(const char* name, const char* prefix = ""); 63 64 // given a @constructorParams section of e.g. 'int x, float y', writes out "<separator>x, y". 65 // Writes nothing (not even the separator) if there is no @constructorParams section. 66 void writeExtraConstructorParams(const char* separator); 67 68 void writeMake(); 69 70 void writeConstructor(); 71 72 void writeFields(); 73 74 void failOnSection(const char* section, const char* msg); 75 76 const Context& fContext; 77 String fName; 78 String fFullName; 79 SectionAndParameterHelper fSectionAndParameterHelper; 80 81 typedef CodeGenerator INHERITED; 82 }; 83 84 } // namespace SkSL 85 86 #endif 87