include/vrvGraphics/DtProjected2DTexturedEffect.h

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/*****************************************************************************
 * Copyright (c) 2011 MAK Technologies, Inc.
 * All rights reserved.
 *****************************************************************************/


#pragma once

#include <vrvGraphics/Dt2DEffect.h>

namespace makVrv
{

   class DT_DLL_VRVGRAPHICS DtProjected2DTexturedEffect : public Dt2DEffect
   {
   public:

      DtProjected2DTexturedEffect( bool textureIsAlpha );

      virtual ~DtProjected2DTexturedEffect();

      virtual void setCamera( bool geocentric, float geocentricAlpha,
         const double position[3], const double projection[16] );

      //Set the number of groups.
      virtual void setGroupCount( unsigned int count );

      virtual void setBackgroundImageTextureUnit( unsigned int unit );

      // Sets the given attributes to the OpenGL context.
      virtual void setVaryingAttributes( size_t stride,
         const VaryingAttributeAddress& positionAddress,
         const VaryingAttributeAddress& colorAddress,
         const VaryingAttributeAddress& offsetAddress,
         const VaryingAttributeAddress& uvAddress,
         const VaryingAttributeAddress& rotAddress );

      virtual void unsetVaryingAttributes();

   protected:

      virtual void updateUniformLocations();

      virtual void updateUniforms();

      virtual void getShaderSource( const char*& vs,
         const char*& fs, const char*& gs );

   protected:

      int myUniform_Texture;
      int myUniform_CameraPos;
      int myUniform_CameraMat;
      int myUniform_GroupCount;
      int myUniform_Sphere;
      int myUniform_OccludedAlpha;

      unsigned int myUnit;
      unsigned int myGroupCount;
      double myCameraPos[3];
      double myMatrix[16];
      bool myTextureIsAlpha;
      bool myGeocentricFlag;
      float myGeocentricAlpha;

   };


   class DT_DLL_VRVGRAPHICS DtProjected2DTexturedEffectCreator : public DtEffectCreator
   {
   public:

      DtProjected2DTexturedEffectCreator( bool textureIsAlpha )
         : myTextureIsAlpha( textureIsAlpha )
      {
      }

      virtual DtEffect* create( CreateParameters* params = 0 )
      {
         return new DtProjected2DTexturedEffect( myTextureIsAlpha );
      }

   protected:

      bool myTextureIsAlpha;

   };

}