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

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• Author : Kyle Piddington
  Date : 2021-04-26 16:56:15
  Hash : d7aa0130
  Message : Upstream Apple's direct-to-Metal backend: compile translator. This change is meant to merge the translator changes from Apple's direct-to-Metal backend. Taken from Kyle Piddington's CL: https://chromium-review.googlesource.com/c/angle/angle/+/2857366/ The goal of this CL is to merge the translator code in a state that compiles, but not to switch the Metal backend over to use this translator backend yet. Bug: angleproject:5505 Change-Id: I68a6354604498cd5fd1eb96c13fc56f3b38f2bd0 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2897536 Reviewed-by: Jonah Ryan-Davis <jonahr@google.com> Commit-Queue: Jonah Ryan-Davis <jonahr@google.com>

• src/compiler/translator/ConstantUnion.h

• //
  // Copyright 2002 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_CONSTANTUNION_H_
  #define COMPILER_TRANSLATOR_CONSTANTUNION_H_
  
  #include "compiler/translator/BaseTypes.h"
  #include "compiler/translator/Common.h"
  
  namespace sh
  {
  
  class TDiagnostics;
  
  class TConstantUnion
  {
    public:
      POOL_ALLOCATOR_NEW_DELETE
      TConstantUnion();
      TConstantUnion(int i);
      TConstantUnion(unsigned int u);
      TConstantUnion(float f);
      TConstantUnion(bool b);
  
      bool cast(TBasicType newType, const TConstantUnion &constant);
  
      void setIConst(int i)
      {
          iConst = i;
          type   = EbtInt;
      }
      void setUConst(unsigned int u)
      {
          uConst = u;
          type   = EbtUInt;
      }
      void setFConst(float f)
      {
          fConst = f;
          type   = EbtFloat;
      }
      void setBConst(bool b)
      {
          bConst = b;
          type   = EbtBool;
      }
  
      void setYuvCscStandardEXTConst(TYuvCscStandardEXT s)
      {
          yuvCscStandardEXTConst = s;
          type                   = EbtYuvCscStandardEXT;
      }
  
      int getIConst() const;
      unsigned int getUConst() const;
      float getFConst() const;
      bool getBConst() const;
      bool isZero() const;
      TYuvCscStandardEXT getYuvCscStandardEXTConst() const;
  
      bool operator==(const int i) const;
      bool operator==(const unsigned int u) const;
      bool operator==(const float f) const;
      bool operator==(const bool b) const;
      bool operator==(const TYuvCscStandardEXT s) const;
      bool operator==(const TConstantUnion &constant) const;
      bool operator!=(const int i) const;
      bool operator!=(const unsigned int u) const;
      bool operator!=(const float f) const;
      bool operator!=(const bool b) const;
      bool operator!=(const TYuvCscStandardEXT s) const;
      bool operator!=(const TConstantUnion &constant) const;
      bool operator>(const TConstantUnion &constant) const;
      bool operator<(const TConstantUnion &constant) const;
      static TConstantUnion add(const TConstantUnion &lhs,
                                const TConstantUnion &rhs,
                                TDiagnostics *diag,
                                const TSourceLoc &line);
      static TConstantUnion sub(const TConstantUnion &lhs,
                                const TConstantUnion &rhs,
                                TDiagnostics *diag,
                                const TSourceLoc &line);
      static TConstantUnion mul(const TConstantUnion &lhs,
                                const TConstantUnion &rhs,
                                TDiagnostics *diag,
                                const TSourceLoc &line);
      TConstantUnion operator%(const TConstantUnion &constant) const;
      static TConstantUnion rshift(const TConstantUnion &lhs,
                                   const TConstantUnion &rhs,
                                   TDiagnostics *diag,
                                   const TSourceLoc &line);
      static TConstantUnion lshift(const TConstantUnion &lhs,
                                   const TConstantUnion &rhs,
                                   TDiagnostics *diag,
                                   const TSourceLoc &line);
      TConstantUnion operator&(const TConstantUnion &constant) const;
      TConstantUnion operator|(const TConstantUnion &constant) const;
      TConstantUnion operator^(const TConstantUnion &constant) const;
      TConstantUnion operator&&(const TConstantUnion &constant) const;
      TConstantUnion operator||(const TConstantUnion &constant) const;
  
      TBasicType getType() const { return type; }
  
    private:
      union
      {
          int iConst;           // used for ivec, scalar ints
          unsigned int uConst;  // used for uvec, scalar uints
          bool bConst;          // used for bvec, scalar bools
          float fConst;         // used for vec, mat, scalar floats
          TYuvCscStandardEXT yuvCscStandardEXTConst;
      };
  
      TBasicType type;
  };
  
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_CONSTANTUNION_H_