MYST: Fix drawing partial subimages
|Reported by:||bgK||Owned by:||SF/mthreepwood|
Source rects for subimages are stored in bitmap coordinates (upside down compared to screen coordinates). This patch implements the proper transformation from bitmap to screen coordinates. The change can easily be seen on the selection buttons of the imager on Myst.
Ticket imported from: #2988976. Ticket imported from: patches/1276.