84 lines
2.6 KiB
C++
84 lines
2.6 KiB
C++
/*-------------------------------------------------------------------------
|
|
* 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 Expression generator.
|
|
*//*--------------------------------------------------------------------*/
|
|
|
|
#include "rsgFunctionGenerator.hpp"
|
|
#include "rsgUtils.hpp"
|
|
|
|
using std::vector;
|
|
|
|
namespace rsg
|
|
{
|
|
|
|
FunctionGenerator::FunctionGenerator (GeneratorState& state, Function& function)
|
|
: m_state (state)
|
|
, m_function (function)
|
|
{
|
|
}
|
|
|
|
FunctionGenerator::~FunctionGenerator (void)
|
|
{
|
|
}
|
|
|
|
void FunctionGenerator::generate (void)
|
|
{
|
|
std::vector<Statement*> statementStack;
|
|
|
|
// Initialize
|
|
m_state.setStatementStack(statementStack);
|
|
statementStack.push_back(&m_function.getBody());
|
|
m_function.getBody().init(m_state);
|
|
|
|
// Process until statement stack is empty
|
|
while (!statementStack.empty())
|
|
{
|
|
DE_ASSERT((int)statementStack.size() <= m_state.getShaderParameters().maxStatementDepth);
|
|
|
|
Statement* curStatement = statementStack.back();
|
|
Statement* childStatement = curStatement->createNextChild(m_state);
|
|
|
|
if (childStatement)
|
|
statementStack.push_back(childStatement);
|
|
else
|
|
statementStack.pop_back();
|
|
}
|
|
|
|
// Create assignments if variables have bound value range
|
|
for (vector<Variable*>::iterator i = m_requiredAssignments.begin(); i != m_requiredAssignments.end(); i++)
|
|
{
|
|
Variable* variable = *i;
|
|
const ValueEntry* entry = m_state.getVariableManager().getValue(variable);
|
|
ValueRange valueRange(variable->getType());
|
|
|
|
valueRange.getMin() = entry->getValueRange().getMin().value();
|
|
valueRange.getMax() = entry->getValueRange().getMax().value();
|
|
|
|
// Remove value entry from this scope. After this entry ptr is invalid.
|
|
m_state.getVariableManager().removeValueFromCurrentScope(variable);
|
|
|
|
if (!isUndefinedValueRange(valueRange.asAccess()))
|
|
m_function.getBody().addChild(new AssignStatement(m_state, variable, valueRange.asAccess()));
|
|
}
|
|
}
|
|
|
|
} // rsg
|