DtLightData.h

Go to the documentation of this file.

/****************************************************************************** 
** Copyright (c) 2019 MAK Technologies, Inc. 
** All rights reserved. 
******************************************************************************/ 

#pragma once

#include <vrvGraphicsUtils/vrvGraphicsUtils.h>

#pragma warning( push )
#pragma warning( disable : 4251 )

#include <vrvGraphicsUtils/DtDataFormat.h>
#include <vrvGraphicsUtils/DtForwardDeclare.h>
FORWARD_DECLARE_DIFFERENT_SUFFIX(DtLight, Light)
#include <vrvGraphicsUtils/DtIntSize.h>

#include <vrvOsg/DtBindingManager.h>

#include <boost/array.hpp> // TODO: replace with std::array when c++11 is available

namespace makVrv
{

   struct DtLightDataStruct
   {
      float ambient_spotx[4];  // ambient (xyz) + spot.x (w)
      float diffuse_spoty[4];  // diffuse (xyz) + spot.y (w)
      float specular_spotz[4]; // specular (xyz) + spot.z (w)

      float position_range[4]; // position (xyz) + range (w)
      float direction_type[4]; // direction (xyz) + type (w)

      float attenuation_pack[4]; // attenuation (xyz) + pack (w)

      static size_t GetSizeInFloats(void);
   };

   class DT_DLL_VRVGRAPHICSUTILS DtLightData
   {
   public:
      DtLightData(size_t maxLights);

      virtual ~DtLightData();

      size_t maxLights(void) const;
      size_t sizeInBytes(void) const;
      size_t inUseSizeInBytes(void) const;
      size_t inUseSliceSizeInBytes(void) const;

      void packLights(const VectorLights& lights);
      void packLights(const VectorLights& lights, size_t total);

      float32* data(int slice);

   private:
      // TODO: replace with std::array once c++11 is available.
      boost::array<float32*, DtBindingManager::theLightBlockCount> myData;

      size_t myMaxLights;  // maximum lights that we can store.
      size_t myLightCount; // current light count

      void packLight(size_t offset, const DtLight* pLight);
   };

} //namespace makVrv

#pragma warning( pop )