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

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• Hash : b11e2483
  Author :
  Date : 2015-05-04T14:21:22
  

  translator: Fix validation sometimes modifying builtins.
  
  When validating some shaders with out-of-bounds array indexes,
  we would write the sanitized index into the global symbol table.
  We would then overwrite a wrong value for the builtin. This
  fixes the WebGL test extensions/webgl-draw-buffers-max-draw-buffers.
  
  Also mark const on as many uses ConstantUnion as we can.
  
  BUG=angleproject:993
  
  Change-Id: I110efaf1b7b0158b08b704277e3bc2472437902c
  Reviewed-on: https://chromium-review.googlesource.com/268962
  Tested-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Kenneth Russell <kbr@chromium.org>
  Reviewed-by: Zhenyao Mo <zmo@chromium.org>
  

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• src/compiler/translator/Intermediate.h

• //
  // Copyright (c) 2002-2014 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_INTERMEDIATE_H_
  #define COMPILER_TRANSLATOR_INTERMEDIATE_H_
  
  #include "compiler/translator/IntermNode.h"
  
  struct TVectorFields
  {
      int offsets[4];
      int num;
  };
  
  //
  // Set of helper functions to help parse and build the tree.
  //
  class TInfoSink;
  class TIntermediate
  {
    public:
      POOL_ALLOCATOR_NEW_DELETE();
      TIntermediate(TInfoSink &i)
          : mInfoSink(i) { }
  
      TIntermSymbol *addSymbol(
          int id, const TString &, const TType &, const TSourceLoc &);
      TIntermTyped *addBinaryMath(
          TOperator op, TIntermTyped *left, TIntermTyped *right, const TSourceLoc &);
      TIntermTyped *addAssign(
          TOperator op, TIntermTyped *left, TIntermTyped *right, const TSourceLoc &);
      TIntermTyped *addIndex(
          TOperator op, TIntermTyped *base, TIntermTyped *index, const TSourceLoc &);
      TIntermTyped *addUnaryMath(
          TOperator op, TIntermTyped *child, const TSourceLoc &line, const TType *funcReturnType);
      TIntermAggregate *growAggregate(
          TIntermNode *left, TIntermNode *right, const TSourceLoc &);
      TIntermAggregate *makeAggregate(TIntermNode *node, const TSourceLoc &);
      TIntermAggregate *setAggregateOperator(TIntermNode *, TOperator, const TSourceLoc &);
      TIntermNode *addSelection(TIntermTyped *cond, TIntermNodePair code, const TSourceLoc &);
      TIntermTyped *addSelection(TIntermTyped *cond, TIntermTyped *trueBlock, TIntermTyped *falseBlock,
                                 const TSourceLoc &line);
      TIntermSwitch *addSwitch(
          TIntermTyped *init, TIntermAggregate *statementList, const TSourceLoc &line);
      TIntermCase *addCase(
          TIntermTyped *condition, const TSourceLoc &line);
      TIntermTyped *addComma(
          TIntermTyped *left, TIntermTyped *right, const TSourceLoc &);
      TIntermConstantUnion *addConstantUnion(
          TConstantUnion *constantUnion, const TType &type, const TSourceLoc &line);
      // TODO(zmo): Get rid of default value.
      bool parseConstTree(const TSourceLoc &, TIntermNode *, TConstantUnion *,
                          TOperator, TType, bool singleConstantParam = false);
      TIntermNode *addLoop(TLoopType, TIntermNode *, TIntermTyped *, TIntermTyped *,
                           TIntermNode *, const TSourceLoc &);
      TIntermBranch *addBranch(TOperator, const TSourceLoc &);
      TIntermBranch *addBranch(TOperator, TIntermTyped *, const TSourceLoc &);
      TIntermTyped *addSwizzle(TVectorFields &, const TSourceLoc &);
      bool postProcess(TIntermNode *);
  
      static void outputTree(TIntermNode *, TInfoSinkBase &);
  
    private:
      void operator=(TIntermediate &); // prevent assignments
  
      TInfoSink & mInfoSink;
  };
  
  #endif  // COMPILER_TRANSLATOR_INTERMEDIATE_H_
  

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