kc3-lang/angle/src/compiler/FlagStd140Structs.cpp

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  Commit

• Author : Jamie Madill
  Date : 2013-07-08 14:39:03
  Hash : 98493ddc
  Message : Simplified TType class by carving out TStructure and TField. R=kbr@chromium.org Review URL: https://codereview.appspot.com/9866043 git-svn-id: https://angleproject.googlecode.com/svn/trunk@2423 736b8ea6-26fd-11df-bfd4-992fa37f6226 TRAC #23415 Authored-by: alokp@chromium.org Signed-off-by: Shannon Woods Signed-off-by Nicolas Capens Merged-by: Jamie Madill

• src/compiler/FlagStd140Structs.cpp

• //
  // 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/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();
  }
  
  }