Jarkko Poyry | 3c82736 | 2014-09-02 11:48:52 +0300 | [diff] [blame] | 1 | /*------------------------------------------------------------------------- |
| 2 | * drawElements Quality Program Random Shader Generator |
| 3 | * ---------------------------------------------------- |
| 4 | * |
| 5 | * Copyright 2014 The Android Open Source Project |
| 6 | * |
| 7 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 8 | * you may not use this file except in compliance with the License. |
| 9 | * You may obtain a copy of the License at |
| 10 | * |
| 11 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 12 | * |
| 13 | * Unless required by applicable law or agreed to in writing, software |
| 14 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 15 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 16 | * See the License for the specific language governing permissions and |
| 17 | * limitations under the License. |
| 18 | * |
| 19 | *//*! |
| 20 | * \file |
| 21 | * \brief Expression generator. |
| 22 | *//*--------------------------------------------------------------------*/ |
| 23 | |
| 24 | #include "rsgFunctionGenerator.hpp" |
| 25 | #include "rsgUtils.hpp" |
| 26 | |
| 27 | using std::vector; |
| 28 | |
| 29 | namespace rsg |
| 30 | { |
| 31 | |
| 32 | FunctionGenerator::FunctionGenerator (GeneratorState& state, Function& function) |
| 33 | : m_state (state) |
| 34 | , m_function (function) |
| 35 | { |
| 36 | } |
| 37 | |
| 38 | FunctionGenerator::~FunctionGenerator (void) |
| 39 | { |
| 40 | } |
| 41 | |
| 42 | void FunctionGenerator::generate (void) |
| 43 | { |
| 44 | std::vector<Statement*> statementStack; |
| 45 | |
| 46 | // Initialize |
| 47 | m_state.setStatementStack(statementStack); |
| 48 | statementStack.push_back(&m_function.getBody()); |
| 49 | m_function.getBody().init(m_state); |
| 50 | |
| 51 | // Process until statement stack is empty |
| 52 | while (!statementStack.empty()) |
| 53 | { |
| 54 | DE_ASSERT((int)statementStack.size() <= m_state.getShaderParameters().maxStatementDepth); |
| 55 | |
| 56 | Statement* curStatement = statementStack.back(); |
| 57 | Statement* childStatement = curStatement->createNextChild(m_state); |
| 58 | |
| 59 | if (childStatement) |
| 60 | statementStack.push_back(childStatement); |
| 61 | else |
| 62 | statementStack.pop_back(); |
| 63 | } |
| 64 | |
| 65 | // Create assignments if variables have bound value range |
| 66 | for (vector<Variable*>::iterator i = m_requiredAssignments.begin(); i != m_requiredAssignments.end(); i++) |
| 67 | { |
| 68 | Variable* variable = *i; |
| 69 | const ValueEntry* entry = m_state.getVariableManager().getValue(variable); |
| 70 | ValueRange valueRange(variable->getType()); |
| 71 | |
| 72 | valueRange.getMin() = entry->getValueRange().getMin().value(); |
| 73 | valueRange.getMax() = entry->getValueRange().getMax().value(); |
| 74 | |
| 75 | // Remove value entry from this scope. After this entry ptr is invalid. |
| 76 | m_state.getVariableManager().removeValueFromCurrentScope(variable); |
| 77 | |
Jarkko Pöyry | ba84b6d | 2015-05-19 17:44:29 -0700 | [diff] [blame] | 78 | if (!isUndefinedValueRange(valueRange.asAccess())) |
| 79 | m_function.getBody().addChild(new AssignStatement(m_state, variable, valueRange.asAccess())); |
Jarkko Poyry | 3c82736 | 2014-09-02 11:48:52 +0300 | [diff] [blame] | 80 | } |
| 81 | } |
| 82 | |
| 83 | } // rsg |