| #ifndef _RSGSTATEMENT_HPP |
| #define _RSGSTATEMENT_HPP |
| /*------------------------------------------------------------------------- |
| * drawElements Quality Program Random Shader Generator |
| * ---------------------------------------------------- |
| * |
| * Copyright 2014 The Android Open Source Project |
| * |
| * 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. |
| * |
| *//*! |
| * \file |
| * \brief Statements. |
| *//*--------------------------------------------------------------------*/ |
| |
| #include "rsgDefs.hpp" |
| #include "rsgGeneratorState.hpp" |
| #include "rsgVariableManager.hpp" |
| #include "rsgExpression.hpp" |
| #include "rsgToken.hpp" |
| |
| #include <vector> |
| |
| namespace rsg |
| { |
| |
| class Statement |
| { |
| public: |
| Statement(void); |
| virtual ~Statement(void); |
| |
| virtual Statement *createNextChild(GeneratorState &state) = DE_NULL; |
| virtual void tokenize(GeneratorState &state, TokenStream &str) const = DE_NULL; |
| virtual void execute(ExecutionContext &execCtx) const = DE_NULL; |
| |
| protected: |
| }; |
| |
| // IfStatement |
| // ForLoopStatement |
| // WhileStatement |
| // DoWhileStatement |
| |
| class ExpressionStatement : public Statement |
| { |
| public: |
| ExpressionStatement(GeneratorState &state); |
| virtual ~ExpressionStatement(void); |
| |
| Statement *createNextChild(GeneratorState &state) |
| { |
| DE_UNREF(state); |
| return DE_NULL; |
| } |
| void tokenize(GeneratorState &state, TokenStream &str) const; |
| void execute(ExecutionContext &execCtx) const; |
| |
| static float getWeight(const GeneratorState &state); |
| |
| protected: |
| Expression *m_expression; |
| }; |
| |
| class DeclarationStatement : public Statement |
| { |
| public: |
| DeclarationStatement(GeneratorState &state, Variable *variable = DE_NULL); |
| virtual ~DeclarationStatement(void); |
| |
| Statement *createNextChild(GeneratorState &state) |
| { |
| DE_UNREF(state); |
| return DE_NULL; |
| } |
| void tokenize(GeneratorState &state, TokenStream &str) const; |
| void execute(ExecutionContext &execCtx) const; |
| |
| static float getWeight(const GeneratorState &state); |
| |
| protected: |
| const Variable *m_variable; |
| Expression *m_expression; |
| }; |
| |
| class BlockStatement : public Statement |
| { |
| public: |
| BlockStatement(GeneratorState &state); |
| virtual ~BlockStatement(void); |
| |
| BlockStatement(void) : m_numChildrenToCreate(0) |
| { |
| } |
| void init(GeneratorState &state); |
| |
| Statement *createNextChild(GeneratorState &state); |
| void tokenize(GeneratorState &state, TokenStream &str) const; |
| void execute(ExecutionContext &execCtx) const; |
| |
| static float getWeight(const GeneratorState &state); |
| |
| void addChild(Statement *statement); |
| |
| private: |
| VariableScope m_scope; |
| |
| int m_numChildrenToCreate; |
| std::vector<Statement *> m_children; |
| }; |
| |
| class ConditionalStatement : public Statement |
| { |
| public: |
| ConditionalStatement(GeneratorState &state); |
| virtual ~ConditionalStatement(void); |
| |
| Statement *createNextChild(GeneratorState &state); |
| void tokenize(GeneratorState &state, TokenStream &str) const; |
| void execute(ExecutionContext &execCtx) const; |
| |
| static float getWeight(const GeneratorState &state); |
| |
| private: |
| bool isElseBlockRequired(const GeneratorState &state) const; |
| |
| Expression *m_condition; |
| Statement *m_trueStatement; |
| Statement *m_falseStatement; |
| |
| ValueScope m_conditionalScope; |
| }; |
| |
| // \note Used for generating mandatory assignments (shader outputs, function outputs). |
| // Normally assignment is handled inside ExpressionStatement where generator may |
| // choose to generate AssignOp expression. |
| class AssignStatement : public Statement |
| { |
| public: |
| AssignStatement(const Variable *variable, Expression *value); |
| AssignStatement(GeneratorState &state, const Variable *variable, ConstValueRangeAccess valueRange); |
| virtual ~AssignStatement(void); |
| |
| Statement *createNextChild(GeneratorState &state) |
| { |
| DE_UNREF(state); |
| return DE_NULL; |
| } |
| void tokenize(GeneratorState &state, TokenStream &str) const; |
| void execute(ExecutionContext &execCtx) const; |
| |
| private: |
| const Variable *m_variable; |
| Expression *m_valueExpr; |
| }; |
| |
| } // namespace rsg |
| |
| #endif // _RSGSTATEMENT_HPP |