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//
// Copyright (c) 2013 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
#include "compiler/translator/FlagStd140Structs.h"
namespace sh
{
bool FlagStd140Structs::visitBinary(Visit visit, TIntermBinary *binaryNode)
{
if (binaryNode->getRight()->getBasicType() == EbtStruct)
{
switch (binaryNode->getOp())
{
case EOpIndexDirectInterfaceBlock:
case EOpIndexDirectStruct:
if (isInStd140InterfaceBlock(binaryNode->getLeft()))
{
mFlaggedNodes.push_back(binaryNode);
}
break;
default: break;
}
return false;
}
if (binaryNode->getOp() == EOpIndexDirectStruct)
{
return false;
}
return visit == PreVisit;
}
void FlagStd140Structs::visitSymbol(TIntermSymbol *symbol)
{
if (isInStd140InterfaceBlock(symbol) && symbol->getBasicType() == EbtStruct)
{
mFlaggedNodes.push_back(symbol);
}
}
bool FlagStd140Structs::isInStd140InterfaceBlock(TIntermTyped *node) const
{
TIntermBinary *binaryNode = node->getAsBinaryNode();
if (binaryNode)
{
return isInStd140InterfaceBlock(binaryNode->getLeft());
}
const TType &type = node->getType();
// determine if we are in the standard layout
const TInterfaceBlock *interfaceBlock = type.getInterfaceBlock();
if (interfaceBlock)
{
return (interfaceBlock->blockStorage() == EbsStd140);
}
return false;
}
std::vector<TIntermTyped *> FlagStd140ValueStructs(TIntermNode *node)
{
FlagStd140Structs flaggingTraversal;
node->traverse(&flaggingTraversal);
return flaggingTraversal.getFlaggedNodes();
}
}
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