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

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• Hash : 1cb333eb
  Author :
  Date : 2013-08-30T13:21:05
  

  Rename compiler/Uniform.cpp+h to ShaderVariable.cpp+h.
  
  TRAC #23754
  
  Signed-off-by: Nicolas Capens
  Signed-off-by: Shannon Woods
  

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• src/compiler/HLSLLayoutEncoder.cpp

• //
  // 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.
  //
  
  #include "compiler/HLSLLayoutEncoder.h"
  #include "compiler/ShaderVariable.h"
  #include "common/mathutil.h"
  #include "common/utilities.h"
  
  namespace sh
  {
  
  HLSLBlockEncoder::HLSLBlockEncoder(std::vector<BlockMemberInfo> *blockInfoOut)
      : BlockLayoutEncoder(blockInfoOut)
  {
  }
  
  void HLSLBlockEncoder::enterAggregateType()
  {
      nextRegister();
  }
  
  void HLSLBlockEncoder::exitAggregateType()
  {
  }
  
  void HLSLBlockEncoder::getBlockLayoutInfo(GLenum type, unsigned int arraySize, bool isRowMajorMatrix, int *arrayStrideOut, int *matrixStrideOut)
  {
      // We assume we are only dealing with 4 byte components (no doubles or half-words currently)
      ASSERT(gl::UniformComponentSize(gl::UniformComponentType(type)) == ComponentSize);
  
      int matrixStride = 0;
      int arrayStride = 0;
  
      if (gl::IsMatrixType(type))
      {
          nextRegister();
          matrixStride = RegisterSize;
  
          if (arraySize > 0)
          {
              const int numRegisters = gl::MatrixRegisterCount(type, isRowMajorMatrix);
              arrayStride = RegisterSize * numRegisters;
          }
      }
      else if (arraySize > 0)
      {
          nextRegister();
          arrayStride = RegisterSize;
      }
      else
      {
          int numComponents = gl::UniformComponentCount(type);
          if ((numComponents + (mCurrentOffset % RegisterSize)) > RegisterSize)
          {
              nextRegister();
          }
      }
  
      *matrixStrideOut = matrixStride;
      *arrayStrideOut = arrayStride;
  }
  
  void HLSLBlockEncoder::advanceOffset(GLenum type, unsigned int arraySize, bool isRowMajorMatrix, int arrayStride, int matrixStride)
  {
      if (arraySize > 0)
      {
          mCurrentOffset += arrayStride * (arraySize - 1);
      }
  
      if (gl::IsMatrixType(type))
      {
          ASSERT(matrixStride == RegisterSize);
          const int numRegisters = gl::MatrixRegisterCount(type, isRowMajorMatrix);
          const int numComponents = gl::MatrixComponentCount(type, isRowMajorMatrix);
          mCurrentOffset += RegisterSize * (numRegisters - 1);
          mCurrentOffset += numComponents;
      }
      else
      {
          mCurrentOffset += gl::UniformComponentCount(type);
      }
  }
  
  }
  

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