DtGlTextureUtils.h

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/******************************************************************************
** Copyright (c) 2021 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#pragma once
#include <vrvGraphicsUtils/vrvGraphicsUtils.h>

#include <string>

namespace makVrv
{
   class DT_DLL_VRVGRAPHICSUTILS DtGlTextureUtils
   {
   public:
      DtGlTextureUtils() = delete;
      virtual ~DtGlTextureUtils() = delete;
      DtGlTextureUtils(const DtGlTextureUtils&) = delete;
      DtGlTextureUtils& operator=(const DtGlTextureUtils&) = delete;
   public:
      static std::string textureName(unsigned int id);

      static int textureSize(unsigned int id);

      static int width(unsigned int id);

      static int height(unsigned int id);

      static int internalFormat(unsigned int id);

      static int numMipMaps(unsigned int id);

      static int numComponents(unsigned int pixelFormat);

      static bool isCompressedFormat(unsigned int internalFormat);

      static int sizeInBytesOfCompressedTextureWithMipMaps(int internalFormat, int startMipMapWidth, int startMipMapHeight);

      static int sizeOfMipMap(int internalFormat, int width, int height);

      static const char* formatToString(int format);

      static void computeCompressedSize(int internalFormat, int width, int height, int depth, int& blockSize, int& size);
   };
}