commit: layout units removal

From: Tomas Frydrych (tomas@frydrych.uklinux.net)
Date: Sun Aug 11 2002 - 11:21:01 EDT

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The layout units can be conditionally removed by undefining
USE_LAYOUT_UNITS. This is located near the top of ut_types.h.

I have defined some useful macros in ut_units.h for conversion from
the internal units to device units and vice-versa, but for now 1
internal unit == 1 device pixel. With this, things kind of work.
However, when this is changed to 1024 internal units per device
pixel, nothing works because many of the system calls are being
passed dimensions in the internal units; this is the first thing that
needs to be fixed.

I would appreciate if other people get to hack on this.

Tomas

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