Recently posted Sun CG6 X11R4 Patchh

[Daniel R. Ehrlich]

|From uwm.edu!cs.utexas.edu!rice!sun-spots Thu Jun 21 16:31:57 EDT 1990
|
|Actually, X11R4 performance on a cg6 can be quite reasonable... Below is a
|patch from someone that helps quite a bit if you are using a cg6.  Also,
|when compiling on a Sparc, you can use "-O4" to have the compiler optimize
|the server (twm also is clean if to use "-O4").
|
|Rakesh Patel.
|
|----8< Included Message >8-------
|
|Unfortunately R4 does not support the GX. Until Sun will adapt Xsun to
|there hardware (hopefully!) I use following little 'quick and dirty'
|patch. It accelerates only simple bitblock moves within the screen, but is
|very useful in xterm-scrolling and opaque-moves.
|
|Martin.

We have applied this patch to the X11R4 server code (with MIT fixes
through fix 12) and have noticed that with large windows (i.e. more than
half of the screen's surface) scrolling text creates garbage.  Old lines
are interspaced with the new text and sometinmes it would appear that
lines are dropped all together.  Has anyone else noticed this behavior?
If so, does anyone have a suggested fixed?  I am going to back out the
patch later today.

Thanks in advance.

-- Dan Ehrlich