DtOverlayResourceProvider.h

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/******************************************************************************
** Copyright (c) 2023 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#pragma once 

#include <vrvGraphics/vrvGraphics.h>

#include <vrvGraphicsUtils/DtGlTextureUtils.h>

#include <map>

namespace makVrv
{
   class DtGLFontManager;
   class DtGlRenderTexture;
   class DtEffectManager;
   class DtTextureInterface;

   class DT_DLL_VRVGRAPHICS DtOverlayResourceProvider
   {
   public:

      virtual ~DtOverlayResourceProvider();

      DtOverlayResourceProvider() = delete;

      DtOverlayResourceProvider(
         const DtOverlayResourceProvider& other) = delete;

      DtOverlayResourceProvider(
         const DtOverlayResourceProvider&& other) = delete;

      DtOverlayResourceProvider& operator=(
         const DtOverlayResourceProvider& other) = delete;

      DtOverlayResourceProvider& operator=(
         const DtOverlayResourceProvider&& other) = delete;
       
   public:

      inline DtGLFontManager& fontManager() { return myFontManager; }

      inline DtEffectManager& effectManager() { return myEffectManager; }

      inline bool forceTextShaping(void) const { return myForceTextShaping; }

      virtual unsigned int currentSceneDepthTextureId() const = 0;

      virtual unsigned int currentSceneOcclusionTextureId() const = 0;

      virtual unsigned int texture1DId( DtTextureInterface* textureInterface) const = 0;
      virtual unsigned int texture2DId( DtTextureInterface* textureInterface ) const = 0;

      virtual unsigned int getStippleTexture(const unsigned int stipplePattern[32]) = 0;

      virtual float computeStippleTileRateFromAltitude(double altitude, bool is2D) const;

      void addGroupRef(unsigned int group);

      void removeGroupRef(unsigned int group);

      unsigned int groupCount();

   protected:

      DtOverlayResourceProvider(DtGLFontManager& fontMan, DtEffectManager& effectMan, bool forceTextShaping);

   protected:

      DtGLFontManager& myFontManager;
      DtEffectManager& myEffectManager;

      bool myForceTextShaping;

      typedef std::map<unsigned int, unsigned int> GroupReferenceMap;
      GroupReferenceMap myGroups;
   };
}