kc3-lang/angle/src/compiler/HLSLLayoutEncoder.h

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• Hash : 5609378d
  Author :
  Date : 2013-08-30T13:21:11
  

  Add full support for uniform structs.
  
  TRAC #23750
  
  Signed-off-by: Geoff Lang
  Signed-off-by: Nicolas Capens
  

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• src/compiler/HLSLLayoutEncoder.h

• //
  // Copyright (c) 2013 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 TRANSLATOR_HLSL_HLSLLAYOUTENCODER_H_
  #define TRANSLATOR_HLSL_HLSLLAYOUTENCODER_H_
  
  #include "compiler/BlockLayoutEncoder.h"
  
  namespace sh
  {
  
  struct Varying;
  struct Uniform;
  
  // Block layout packed according to the default D3D11 register packing rules
  // See http://msdn.microsoft.com/en-us/library/windows/desktop/bb509632(v=vs.85).aspx
  
  class HLSLBlockEncoder : public BlockLayoutEncoder
  {
    public:
      HLSLBlockEncoder(std::vector<BlockMemberInfo> *blockInfoOut);
  
      virtual void enterAggregateType();
      virtual void exitAggregateType();
  
    protected:
      virtual void getBlockLayoutInfo(GLenum type, unsigned int arraySize, bool isRowMajorMatrix, int *arrayStrideOut, int *matrixStrideOut);
      virtual void advanceOffset(GLenum type, unsigned int arraySize, bool isRowMajorMatrix, int arrayStride, int matrixStride);
  };
  
  // This method assigns values to the variable's "registerIndex" and "elementIndex" fields.
  // "elementIndex" is only used for structures.
  void HLSLVariableGetRegisterInfo(unsigned int baseRegisterIndex, Uniform *variable);
  
  // This method returns the number of used registers for a ShaderVariable. It is dependent on the HLSLBlockEncoder
  // class to count the number of used registers in a struct (which are individually packed according to the same rules).
  unsigned int HLSLVariableRegisterCount(const Varying &variable);
  unsigned int HLSLVariableRegisterCount(const Uniform &variable);
  
  }
  
  #endif // TRANSLATOR_HLSL_HLSLLAYOUTENCODER_H_
  

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