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

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• Hash : 6106da49
  Author :
  Date : 2021-09-22T16:18:21
  

  Indent Generated GLSL
  
  Before:
  
  in vec4 _ua_position;
  void main(){
  (gl_Position = vec4(0.0, 0.0, 0.0, 0.0));
  (gl_Position = _ua_position);
  }
  layout(shared) uniform _uG{
  float _ufoobar;
  } _ug;
  struct _uS {
  int _ufoo;
  float _ubar;
  };
  layout(shared) uniform _uT{
  _uS _us;
  float _um;
  } _ut;
  float _ufunc(in _uS _ustructVar){
  return _ustructVar._ubar;
  }
  out vec4 _uoutColor;
  void main(){
  float _uv = 0.0;
  for (int _ui = 0; (_ui < _ut._us._ufoo); (++_ui))
  {
  int _uk = 0;
  while ((_uk < _ut._us._ufoo))
  {
  (_uv += _ufunc(_ut._us));
  if ((_uv > 100.0))
  {
  break;
  }
  else
  {
  (_uv += 5.0);
  }
  switch (_uk) {
  case (0):
  (_uv += 3.0);
  break;
  case (1):
  (_uv += 1.0);
  break;
  default:
  (_uv -= 2.0);
  break;
  }
  }
  }
  (_uoutColor = (vec4(_uv) + vec4(_ug._ufoobar)));
  }
  
  After:
  
  in vec4 _ua_position;
  void main(){
    (gl_Position = vec4(0.0, 0.0, 0.0, 0.0));
    (gl_Position = _ua_position);
  }
  layout(shared) uniform _uG{
    float _ufoobar;
  } _ug;
  struct _uS {
    int _ufoo;
    float _ubar;
  };
  layout(shared) uniform _uT{
    _uS _us;
    float _um;
  } _ut;
  float _ufunc(in _uS _ustructVar){
    return _ustructVar._ubar;
  }
  out vec4 _uoutColor;
  void main(){
    float _uv = 0.0;
    for (int _ui = 0; (_ui < _ut._us._ufoo); (++_ui))
    {
      int _uk = 0;
      while ((_uk < _ut._us._ufoo))
      {
        (_uv += _ufunc(_ut._us));
        if ((_uv > 100.0))
        {
          break;
        }
        else
        {
          (_uv += 5.0);
        }
        switch (_uk) {
        case (0):
          (_uv += 3.0);
          break;
        case (1):
          (_uv += 1.0);
          break;
        default:
          (_uv -= 2.0);
          break;
        }
      }
    }
    (_uoutColor = (vec4(_uv) + vec4(_ug._ufoobar)));
  }
  
  Bug: angleproject:6428
  Change-Id: Ica25151e68eb0defd85a3b6241db442d8eb84743
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3177339
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Gregg Tavares <gman@chromium.org>
  

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• src/compiler/translator/OutputGLSLBase.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_OUTPUTGLSLBASE_H_
  #define COMPILER_TRANSLATOR_OUTPUTGLSLBASE_H_
  
  #include <set>
  
  #include "compiler/translator/ExtensionBehavior.h"
  #include "compiler/translator/HashNames.h"
  #include "compiler/translator/InfoSink.h"
  #include "compiler/translator/Pragma.h"
  #include "compiler/translator/tree_util/IntermTraverse.h"
  
  namespace sh
  {
  class TCompiler;
  
  class TOutputGLSLBase : public TIntermTraverser
  {
    public:
      TOutputGLSLBase(TCompiler *compiler, TInfoSinkBase &objSink, ShCompileOptions compileOptions);
  
      ShShaderOutput getShaderOutput() const { return mOutput; }
  
      // Return the original name if hash function pointer is NULL;
      // otherwise return the hashed name. Has special handling for internal names and built-ins,
      // which are not hashed.
      ImmutableString hashName(const TSymbol *symbol);
  
    protected:
      TInfoSinkBase &objSink() { return mObjSink; }
      void writeFloat(TInfoSinkBase &out, float f);
      void writeTriplet(Visit visit, const char *preStr, const char *inStr, const char *postStr);
      std::string getCommonLayoutQualifiers(TIntermSymbol *variable);
      std::string getMemoryQualifiers(const TType &type);
      virtual void writeLayoutQualifier(TIntermSymbol *variable);
      void writeFieldLayoutQualifier(const TField *field);
      void writeInvariantQualifier(const TType &type);
      void writePreciseQualifier(const TType &type);
      virtual void writeVariableType(const TType &type,
                                     const TSymbol *symbol,
                                     bool isFunctionArgument);
      virtual bool writeVariablePrecision(TPrecision precision) = 0;
      void writeFunctionParameters(const TFunction *func);
      const TConstantUnion *writeConstantUnion(const TType &type, const TConstantUnion *pConstUnion);
      void writeConstructorTriplet(Visit visit, const TType &type);
      ImmutableString getTypeName(const TType &type);
  
      void visitSymbol(TIntermSymbol *node) override;
      void visitConstantUnion(TIntermConstantUnion *node) override;
      bool visitSwizzle(Visit visit, TIntermSwizzle *node) override;
      bool visitBinary(Visit visit, TIntermBinary *node) override;
      bool visitUnary(Visit visit, TIntermUnary *node) override;
      bool visitTernary(Visit visit, TIntermTernary *node) override;
      bool visitIfElse(Visit visit, TIntermIfElse *node) override;
      bool visitSwitch(Visit visit, TIntermSwitch *node) override;
      bool visitCase(Visit visit, TIntermCase *node) override;
      void visitFunctionPrototype(TIntermFunctionPrototype *node) override;
      bool visitFunctionDefinition(Visit visit, TIntermFunctionDefinition *node) override;
      bool visitAggregate(Visit visit, TIntermAggregate *node) override;
      bool visitBlock(Visit visit, TIntermBlock *node) override;
      bool visitGlobalQualifierDeclaration(Visit visit,
                                           TIntermGlobalQualifierDeclaration *node) override;
      bool visitDeclaration(Visit visit, TIntermDeclaration *node) override;
      bool visitLoop(Visit visit, TIntermLoop *node) override;
      bool visitBranch(Visit visit, TIntermBranch *node) override;
      void visitPreprocessorDirective(TIntermPreprocessorDirective *node) override;
  
      void visitCodeBlock(TIntermBlock *node);
  
      ImmutableString hashFieldName(const TField *field);
      // Same as hashName(), but without hashing "main".
      ImmutableString hashFunctionNameIfNeeded(const TFunction *func);
      // Used to translate function names for differences between ESSL and GLSL
      virtual ImmutableString translateTextureFunction(const ImmutableString &name,
                                                       const ShCompileOptions &option)
      {
          return name;
      }
  
      void declareStruct(const TStructure *structure);
      void writeQualifier(TQualifier qualifier, const TType &type, const TSymbol *symbol);
  
      const char *mapQualifierToString(TQualifier qualifier);
  
      sh::GLenum getShaderType() const { return mShaderType; }
      bool isHighPrecisionSupported() const { return mHighPrecisionSupported; }
      const char *getIndentPrefix(int extraIndentDepth = 0);
  
    private:
      void declareInterfaceBlockLayout(const TType &type);
      void declareInterfaceBlock(const TType &type);
  
      void writeFunctionTriplet(Visit visit,
                                const ImmutableString &functionName,
                                bool useEmulatedFunction);
  
      TInfoSinkBase &mObjSink;
      bool mDeclaringVariable;
  
      // name hashing.
      ShHashFunction64 mHashFunction;
      NameMap &mNameMap;
  
      sh::GLenum mShaderType;
      const int mShaderVersion;
      ShShaderOutput mOutput;
  
      bool mHighPrecisionSupported;
  
      ShCompileOptions mCompileOptions;
  };
  
  void WritePragma(TInfoSinkBase &out, ShCompileOptions compileOptions, const TPragma &pragma);
  
  void WriteGeometryShaderLayoutQualifiers(TInfoSinkBase &out,
                                           sh::TLayoutPrimitiveType inputPrimitive,
                                           int invocations,
                                           sh::TLayoutPrimitiveType outputPrimitive,
                                           int maxVertices);
  
  void WriteTessControlShaderLayoutQualifiers(TInfoSinkBase &out, int inputVertices);
  
  void WriteTessEvaluationShaderLayoutQualifiers(TInfoSinkBase &out,
                                                 sh::TLayoutTessEvaluationType inputPrimitive,
                                                 sh::TLayoutTessEvaluationType inputVertexSpacing,
                                                 sh::TLayoutTessEvaluationType inputOrdering,
                                                 sh::TLayoutTessEvaluationType inputPoint);
  
  bool NeedsToWriteLayoutQualifier(const TType &type);
  
  void EmitEarlyFragmentTestsGLSL(const TCompiler &, TInfoSinkBase &sink);
  void EmitWorkGroupSizeGLSL(const TCompiler &, TInfoSinkBase &sink);
  void EmitMultiviewGLSL(const TCompiler &,
                         const ShCompileOptions &,
                         const TExtension,
                         const TBehavior,
                         TInfoSinkBase &sink);
  
  }  // namespace sh
  
  #endif  // COMPILER_TRANSLATOR_OUTPUTGLSLBASE_H_
  

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