DELPHI VCL TCanvas adapter using FMX canvas methods. -- 2

Old VCL library uses windows gdi function to draw graphics. I have an application that uses vcl TCanvas class to draw graphics. Now i want to port it into android and ios platforms. using firemonkey. The simplest way is to write an adapter that will look exactly as TCanvas but will use fmx methods. Example sourde code written in C++ bulider is attached. (it's not mine) I need to write it using delphi. also it must support inverse drawing for lines. I can discuss other way if this is not possible. Here is lnk in russian than explain attached source codes. [login to view URL]%D0%9F%D0%B5%D1%80%D0%B5%D1%85%D0%BE%D0%B4-%D1%81-vcl-%D0%BD%D0%B0-firemonkey-tcanvas-931