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

• Show log

  Commit

• Hash : 0a73dd85
  Author :
  Date : 2014-11-19T16:18:08
  

  Fix include guards.
  
  BUG=angle:733
  
  Change-Id: I08b2c11c4831f1161c178c1842b10e807185aced
  Reviewed-on: https://chromium-review.googlesource.com/230831
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Tested-by: Geoff Lang <geofflang@chromium.org>
  

Download

• 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)
          : mUnrollCondition(condition),
            mSamplerArrayIndexIsFloatLoopIndex(false),
            mVisitSamplerArrayIndexNodeInsideLoop(false)
      {
      }
  
      virtual bool visitBinary(Visit, TIntermBinary *node);
      virtual bool visitLoop(Visit, TIntermLoop *node);
      virtual void visitSymbol(TIntermSymbol *node);
  
      bool samplerArrayIndexIsFloatLoopIndex() const
      {
          return mSamplerArrayIndexIsFloatLoopIndex;
      }
  
    private:
      UnrollCondition mUnrollCondition;
      TLoopStack mLoopStack;
      bool mSamplerArrayIndexIsFloatLoopIndex;
      bool mVisitSamplerArrayIndexNodeInsideLoop;
  };
  
  #endif // COMPILER_TRANSLATOR_FORLOOPUNROLL_H_
  

Download