gistfile1.txt

// declaration stays the same
ofTexture {

private:
  ofTextureImpl *textureImpl; // raw ptr or ofPtr?
  
public:
  // all the usual stuff here

};

// stuff ofTextureImpl needs
class ofTextureImpl {
  virtual void bind() = 0;
  //.....
};

// now some actual implementations for things we need
// more files, of course, but totally separate = pretty clean in there
class ofTex2dGlesImpl {
  virtual void bind();
  //.....
};

class ofTex2dImpl {
  virtual void bind();
  //.....
};

// I want these, personally, but they require different data types for loadData() etc,
// couldn't we just template those out?
class ofTex3dImpl {
  virtual void bind();
  //.....
};

class ofTex2dArrayImpl {
  virtual void bind();
  //.....
};