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BSD 4.3tahoe

This directory, libapollo, contains the sources for the device dependent
portion of the X server.  It also contains cvtfont.c, an (admittedly)
ugly program for converting X fonts to Apollo fonts.  The file vssite.h
defines paths for the X fonts and for the Apollo fonts produced by 
cvtfont.  Note that cvtfont produces two fonts for each X font, a normal
one and an inverted one.  Before trying to use any clients that procduce
text output, it is necessary to convert some fonts; 6x10, 6x13, 8x13,
9x15, vtsingle, and vtbold should be a sufficient set.  (Note that 
cvtfont takes the font names as above, with no suffixes/extensions.)

Since mouse button events are not affected by the shift and control keys,
the keys KBD_$LD, KBD_$LE, and KBD_$LF are mapped, respectively, to
control, shift, and meta.  The key KDB_$R1 (POP) is also mapped to meta.
At some future time this will be user-modifiable; right now it's hard-wired
in events.c.   Also note that with the SummaMouse, right- and left-buttons
are swapped--this will also be addressed.

Also note that the SMD quit character is changed from ^Q to KBD_$F8S
(in case X wedges sufficiently hard that you need to bail out).
No effort has been made to map most of the other "special" keys.

Most development and testing has occurred on a DN330.  The server has been
run on a 3-megabyte DN300 with "acceptable" performance.  It has also been
used on DN5nn color nodes, but there are still some problems with color
(e.g., cursors and cursor-masks don't work quite correctly).  Also, using
bitmaps to define non-rectangular clipping regions is, in general, not 
implemented (an exception are the primitives used for icon generation).

A note to gnu emacs users:  gnu emacs required several changes to work
with X windows on the Apollo;  we will be sending them back to FSF and
will also (probably) post them to the net, as they are not extensive.

Other future enhancements will include a "push-to-display-manager" as in
the aaa terminal emulator and configurable keys.  Noted deficiencies will
be remedied as time permits.


In addition, xterm must be loaded with a version of termcap that does not 
invoke the vtserver when tgetent() is called for an ansi terminal.  The 
standard Domain/IX termcap does display this behavior, and it causes xterm to
hang, as the vtserver is unable to acquire the display.

14c14,15
< CFLAGS = -O -DAPOLLO -DJUMPSCROLL -DMODEMENU ${INCLUDES}
---
> CFLAGS = -O -DJUMPSCROLL -DMODEMENU ${INCLUDES}
> LIBS = ../XMenu/libXMenu.a ../Xlib/libX.a
19c20
< 	screen.o button.o Tplot.o termcap.o
---
> 	screen.o button.o Tplot.o
33,34c34,35
< xterm: $(OBJS) 
< 	$(CC) $(CFLAGS) -o xterm $(OBJS) ../XMenu/libXMenu.a ../Xlib/libX.a
---
> xterm: $(OBJS)
> 	$(CC) $(CFLAGS) -o xterm $(OBJS) $(LIBS) -ltermcap
37c38
< 	$(CC) $(CFLAGS) -o resize resize.o termcap.o -lc 
---
> 	$(CC) $(CFLAGS) -o resize resize.o -lc -ltermcap

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