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

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• Author : alokp@chromium.org
  Date : 2010-06-02 15:50:56
  Hash : 91b72320
  Message : Removed the dependency of compiler on common. This is done to make compiler self-sufficient so that it is easier to consume by external developers. I tried to replace all instances of assert by simply redefining assert(x) to ASSERT(x), but was getting a lot of compile errors. I still need to investigate that. Review URL: http://codereview.appspot.com/1461041 git-svn-id: https://angleproject.googlecode.com/svn/trunk@323 736b8ea6-26fd-11df-bfd4-992fa37f6226

• src/compiler/UnfoldSelect.cpp

• //
  // Copyright (c) 2002-2010 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/UnfoldSelect.h"
  
  #include "compiler/InfoSink.h"
  #include "compiler/OutputHLSL.h"
  
  namespace sh
  {
  UnfoldSelect::UnfoldSelect(TParseContext &context, OutputHLSL *outputHLSL) : mContext(context), mOutputHLSL(outputHLSL)
  {
      mTemporaryIndex = 0;
  }
  
  void UnfoldSelect::traverse(TIntermNode *node)
  {
      mTemporaryIndex++;
      node->traverse(this);
  }
  
  bool UnfoldSelect::visitSelection(Visit visit, TIntermSelection *node)
  {
      TInfoSinkBase &out = mOutputHLSL->getBodyStream();
  
      if (node->usesTernaryOperator())
      {
          int i = mTemporaryIndex++;
  
          out << mOutputHLSL->typeString(node->getType()) << " t" << i << ";\n";
  
          node->getCondition()->traverse(this);
          out << "if(";
          node->getCondition()->traverse(mOutputHLSL);
          out << ")\n"
                 "{\n";
          node->getTrueBlock()->traverse(this);
          out << "    t" << i << " = ";
          node->getTrueBlock()->traverse(mOutputHLSL);
          out << ";\n"
                 "}\n"
                 "else\n"
                 "{\n";
          node->getCondition()->traverse(this);
          out << "    t" << i << " = ";
          node->getFalseBlock()->traverse(mOutputHLSL);
          out << ";\n"
                 "}\n";
  
          mTemporaryIndex--;
      }
  
      return false;
  }
  
  int UnfoldSelect::getTemporaryIndex()
  {
      return mTemporaryIndex;
  }
  }