Sven Schnelle 2f8cd51547 hw/display/artist: Fix invalidation of lines near screen border
If parts of the invalidated screen lines are outside of the VRAM buffer,
the code skips the whole invalidate. This is incorrect when only parts
of the buffer are invisble - which is the case when the mouse cursor is
located near the screen border.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
2020-08-26 23:04:00 +02:00
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