To properly handle subsetted BitmapDevices in the iOS vcl backend I seem to need to know what the size of the full BitmapDevice is. I wasted at least one day on desperate hacking and debugging, trying to wrap my head around a misunderstanding of what a subsetted BitmapDevice is. I thought it involved coordinate offsetting... Change-Id: I83bf1a7d75ce192aaf21f1e408008e362fd6c6e6
Provides a BitmapDevice: the vcl software renderer Provides algorithms and data types for bitmap graphics e.g. line and fill polygon scan conversion, bitmap format iterators, and a SalGraphics-compatible software renderer Used for example for wmf / svm files. E.g. used when you do -headless, and have no DISPLAY set - it's an all-software backend for the LibO graphic backend. also see [git:vcl/headless].