Hash :
ebc12a2f
Author :
Date :
2020-09-07T18:50:30
SDL_Surface refcount: destination surface keep track of surfaces
that are mapped to it and automatically invalidate them when it is freed
- refcount is kept so that an external application can still create a reference
to SDL_Surface.
- lock_data was un-used and is now renamed and used as a list keep track of the blitmap