Trival style fix to previous commit to add this detail.

The previous commit also fixed the coordinates passed to the mouse
removal renderer.  The coordinates were rounded down to a character
boundary, and thus essentially unusable.  The renderer had to keep
track of the previous position, or clear a larger area.  The latter
is only safe in the border, which is all that needs special handling
anyway.

I think no renderer depends on the bug.  They have the following
handling:
- gfb sparc64: this seems to assume non-rounded coordinates
- gfb other: does nothing (seems to be missing border handling)
- vga text: does nothing (doesn't need border handling)
- vga planar: clears extras in the border, with some bugs.  The fixes
  will use the precise coordinates to optimize.
- vga direct: clears at the previous position with no check that it
  is active, and clears everything.  Checking finds this bug.
- others: are there any?
This commit is contained in:
Bruce Evans 2017-04-12 17:38:00 +00:00
parent accdee8d46
commit ac07ac7c74