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/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SKSL_CPPCODEGENERATOR
#define SKSL_CPPCODEGENERATOR
#include "SkSLGLSLCodeGenerator.h"
#include "SkSLSectionAndParameterHelper.h"
#include <set>
namespace SkSL {
class CPPCodeGenerator : public GLSLCodeGenerator {
public:
CPPCodeGenerator(const Context* context, const Program* program, ErrorReporter* errors,
String name, OutputStream* out);
bool generateCode() override;
private:
void writef(const char* s, va_list va) SKSL_PRINTF_LIKE(2, 0);
void writef(const char* s, ...) SKSL_PRINTF_LIKE(2, 3);
bool writeSection(const char* name, const char* prefix = "");
void writeHeader() override;
bool usesPrecisionModifiers() const override;
String getTypeName(const Type& type) override;
void writeBinaryExpression(const BinaryExpression& b, Precedence parentPrecedence) override;
void writeIndexExpression(const IndexExpression& i) override;
void writeIntLiteral(const IntLiteral& i) override;
void writeSwizzle(const Swizzle& swizzle) override;
void writeVariableReference(const VariableReference& ref) override;
String getSamplerHandle(const Variable& var);
void writeIfStatement(const IfStatement& s) override;
void writeSwitchStatement(const SwitchStatement& s) override;
void writeFunctionCall(const FunctionCall& c) override;
void writeFunction(const FunctionDefinition& f) override;
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
void writeRuntimeValue(const Type& type, const Layout& layout, const String& cppCode);
void writeVarInitializer(const Variable& var, const Expression& value) override;
void writePrivateVars();
void writePrivateVarValues();
void writeCodeAppend(const String& code);
bool writeEmitCode(std::vector<const Variable*>& uniforms);
void writeSetData(std::vector<const Variable*>& uniforms);
void writeGetKey();
void writeClone();
void writeTest();
String fName;
String fFullName;
SectionAndParameterHelper fSectionAndParameterHelper;
String fExtraEmitCodeCode;
std::vector<String> fFormatArgs;
std::set<int> fWrittenTransformedCoords;
// if true, we are writing a C++ expression instead of a GLSL expression
bool fCPPMode = false;
typedef GLSLCodeGenerator INHERITED;
};
}
#endif
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