kc3-lang/angle/src/compiler/translator/ForLoopUnroll.h

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• Hash : e5a1f271
  Author :
  Date : 2015-08-21T02:58:25
  

  Use override in all the places where it is possible
  
  This will avoid -Winconsistent-overrides in the future. Done using the
  -Wsuggest-override warning of GCC 5.1
  
  BUG=
  
  Change-Id: I707a649dc368f5dd1e139fd144370abcac0b6263
  Reviewed-on: https://chromium-review.googlesource.com/294920
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Tested-by: Corentin Wallez <cwallez@chromium.org>
  

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• src/compiler/translator/ForLoopUnroll.h

• //
  // Copyright (c) 2011 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.
  //
  
  #ifndef COMPILER_TRANSLATOR_FORLOOPUNROLL_H_
  #define COMPILER_TRANSLATOR_FORLOOPUNROLL_H_
  
  #include "compiler/translator/LoopInfo.h"
  
  // This class detects for-loops that needs to be unrolled.
  // Currently we support two unroll conditions:
  //   1) kForLoopWithIntegerIndex: unroll if the index type is integer.
  //   2) kForLoopWithSamplerArrayIndex: unroll where a sampler array index
  //      is also the loop integer index, and reject and fail a compile
  //      where a sampler array index is also the loop float index.
  class ForLoopUnrollMarker : public TIntermTraverser
  {
    public:
      enum UnrollCondition
      {
          kIntegerIndex,
          kSamplerArrayIndex
      };
  
      ForLoopUnrollMarker(UnrollCondition condition)
          : TIntermTraverser(true, false, false),
            mUnrollCondition(condition),
            mSamplerArrayIndexIsFloatLoopIndex(false),
            mVisitSamplerArrayIndexNodeInsideLoop(false)
      {
      }
  
      bool visitBinary(Visit, TIntermBinary *node) override;
      bool visitLoop(Visit, TIntermLoop *node) override;
      void visitSymbol(TIntermSymbol *node) override;
  
      bool samplerArrayIndexIsFloatLoopIndex() const
      {
          return mSamplerArrayIndexIsFloatLoopIndex;
      }
  
    private:
      UnrollCondition mUnrollCondition;
      TLoopStack mLoopStack;
      bool mSamplerArrayIndexIsFloatLoopIndex;
      bool mVisitSamplerArrayIndexNodeInsideLoop;
  };
  
  #endif // COMPILER_TRANSLATOR_FORLOOPUNROLL_H_
  

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