src/third_party/angle/src/compiler/translator/VariableInfo.h

   1 //
   2 // Copyright (c) 2002-2011 The ANGLE Project Authors. All rights reserved.
   3 // Use of this source code is governed by a BSD-style license that can be
   4 // found in the LICENSE file.
   5 //
   6
   7 #ifndef COMPILER_VARIABLE_INFO_H_
   8 #define COMPILER_VARIABLE_INFO_H_
   9
  10 #include <GLSLANG/ShaderLang.h>
  11
  12 #include "compiler/translator/IntermNode.h"
  13
  14 class TSymbolTable;
  15
  16 namespace sh
  17 {
  18
  19 // Traverses intermediate tree to collect all attributes, uniforms, varyings.
  20 class CollectVariables : public TIntermTraverser
  21 {
  22   public:
  23     CollectVariables(std::vector<Attribute> *attribs,
  24                      std::vector<Attribute> *outputVariables,
  25                      std::vector<Uniform> *uniforms,
  26                      std::vector<Varying> *varyings,
  27                      std::vector<InterfaceBlock> *interfaceBlocks,
  28                      ShHashFunction64 hashFunction,
  29                      const TSymbolTable &symbolTable);
  30
  31     virtual void visitSymbol(TIntermSymbol *symbol);
  32     virtual bool visitAggregate(Visit, TIntermAggregate *node);
  33     virtual bool visitBinary(Visit visit, TIntermBinary *binaryNode);
  34
  35   private:
  36     template <typename VarT>
  37     void visitVariable(const TIntermSymbol *variable, std::vector<VarT> *infoList) const;
  38
  39     template <typename VarT>
  40     void visitInfoList(const TIntermSequence &sequence, std::vector<VarT> *infoList) const;
  41
  42     std::vector<Attribute> *mAttribs;
  43     std::vector<Attribute> *mOutputVariables;
  44     std::vector<Uniform> *mUniforms;
  45     std::vector<Varying> *mVaryings;
  46     std::vector<InterfaceBlock> *mInterfaceBlocks;
  47
  48     std::map<std::string, InterfaceBlockField *> mInterfaceBlockFields;
  49
  50     bool mPointCoordAdded;
  51     bool mFrontFacingAdded;
  52     bool mFragCoordAdded;
  53
  54     bool mPositionAdded;
  55     bool mPointSizeAdded;
  56
  57     ShHashFunction64 mHashFunction;
  58
  59     const TSymbolTable &mSymbolTable;
  60 };
  61
  62 // Expand struct uniforms to flattened lists of split variables
  63 void ExpandUniforms(const std::vector<Uniform> &compact,
  64                     std::vector<ShaderVariable> *expanded);
  65
  66 }
  67
  68 #endif  // COMPILER_VARIABLE_INFO_H_