DtGlCaps.h

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


#pragma once

#include <vrvGraphicsUtils/vrvGraphicsUtils.h>

#include <vrvMath/DtVector3.h>
#include <vrvMath/DtVector2.h>

#include <string>

namespace makVrv
{
   struct DtGlDriverVersion
   {
      int myMajor;
      int myMinor;

      bool operator>(const DtGlDriverVersion& rhs) const
      {
         return myMajor > rhs.myMajor || (myMajor == rhs.myMajor && myMinor > rhs.myMinor);
      }

      bool operator<=(const DtGlDriverVersion& rhs) const
      {
         return !(this->operator>(rhs));
      }
   };

   class DT_DLL_VRVGRAPHICSUTILS DtGlCaps
   {
   public:
      DtGlCaps();

      virtual ~DtGlCaps();
   private:
      DtGlCaps(const DtGlCaps& rhs) = delete;

      DtGlCaps& operator=(const DtGlCaps& rhs) = delete;
   public:

      virtual int maxCombinedAtomicCounterBuffers(void) const;

      virtual DtVector3<int> maxComputeWorkGroupCount(void) const;

      virtual DtVector3<int> maxComputeWorkGroupSize(void) const;

      virtual int maxComputeWorkGroupInvocations(void) const;

      virtual int maxTextureImageUnits(void) const;

      virtual int maxSsboSize(void) const;

      virtual int maxUboSize(void) const;

      virtual int maxTextureSize(void) const;

      virtual float maxTextureAnisotropy() const;
 
      virtual DtVector2<int> largestWorkGroupLocalSize2d() const;

      virtual uint64_t totalAvailableMemoryInBytes(void) const;

      virtual const std::string& vendor(void) const;

      virtual const std::string& renderer(void) const;

      virtual const std::string& version(void) const;

      virtual const DtGlDriverVersion& driverNumber(void) const;

   protected:
      virtual DtGlDriverVersion extractDriverNumber(const std::string& version) const;
   protected:
      int myMaxAtomicCounters;
      Vector3_int myMaxWorkGroupCount;
      Vector3_int myMaxWorkGroupSize;
      int myMaxGroupInvocations;
      int myMaxTextureImageUnits;
      int myMaxSsboSize;
      int myMaxUboSize;
      int myMaxSsboBindings;
      int myMaxTextureSize;
      float myMaxTextureAnisotropy;

      uint64_t myTotalAvailableMemory;
      std::string myVendor;
      std::string myRenderer;
      std::string myVersion;
      DtGlDriverVersion myDriverNumber;
   };
}