merge xorg-serer 21.1.3.

first merge of netbsd changes. not tested yet.

port a change back from newer xorg-server, which is needed
for xf86-video-ati 7.x.

http://lists.x.org/archives/xorg-devel/2011-March/020990.html

commit 43e47433cf55c98db5308a51c1c514c59901f598
Author: Søren Sandmann Pedersen <ssp at redhat.com>
Date: Tue Mar 29 13:06:36 2011 -0400

Add RegionInitBoxes(), and fix some buggy callers of RegionInit().

The interface to RegionInit():

RegionInit (RegionPtr pReg, BoxPtr rect, int size);

is very confusing because it doesn't take a list of boxes, it takes
*one* box, but if that box is NULL, it initializes an empty region
with 'size' rectangles preallocated.

Most callers of this function were correctly passing either NULL or
just one box, but there were three confused cases, where the code
seems to expect a region to be created from a list of boxes.

This patch adds a new function RegionInitBoxes() and fixes those
instances to call that instead.

And yes, the pixman function to initialize a region from a list of
boxes is called init_rects() because pixman is also awesome.

V2: Make RegionInitBoxes() return a Bool indicating whether the call
succeeded, and fix the callers to check this return value.

Signed-off-by: Soren Sandmann <ssp at redhat.com>

Apply patch https://bugs.freedesktop.org/attachment.cgi?id=68718
(with whitespace tweaks) from
https://bugs.freedesktop.org/show_bug.cgi?id=47266
to address graphics corruption using recent Cairo, manifested most
commonly by certain rendered text sections appearing as solid rectangular
blocks of colour.
Should be pulled up to netbsd-6 (and probably -5)

initial import of xorg-server 1.10.3. highlights include:
- fixes xorg bugs 29969, 30367, 30527, 30267, 30260, 29046,
30260, 31548, 28672, 24887, 32115, 21457, 32436, 21827,
28414, 24703, 32803, 16318, 33449, 33324, 33929, 35082,
35209, 36146, 36119
- many additional NULL checks
- adjustments related to input ABI 12
- *lots* of dead code removal
- vga arbitrator fixes
- GL fixes
- EDID fixes
- conversion to using asprintf() in many places
- many fixes from valgrind, compiler warnings

see these for more details:
http://lists.freedesktop.org/archives/xorg-announce/2011-February/001612.html
http://lists.freedesktop.org/archives/xorg-announce/2011-April/001646.html
http://lists.freedesktop.org/archives/xorg-announce/2011-May/001675.html
http://lists.freedesktop.org/archives/xorg-announce/2011-July/001710.html

initial import of xorg-server 1.9.5
fixes for FDO bugs 33929, 32803, 24703, 28414, 24887, 30260, 31093, 29046, 30267
memory leak fixes
EDID and modes fixes for multi-screen
dri2 fixes
randr vs invalid size fixes
fixes for Xext triggers
fix for a black-screen after VT switch back (redhat bug 533217)
fixes for x86emu

import xorg-server 1.9.2. important changes since 1.6.5 include:

- built-in symbol visibility, default not export
- fixes for various crashes
- many fixes for XI2, EXA, dix, render, glx, xkb, EDID, randr, Xv,
resource handling, Xext, vfb, xfree86 / vga and composite support.
- fixes several memory leaks
- many many documentation updates
- record extension enabled
- no longer looks for XF86Config files

initial import of xorg-server-1.6.2

initial import of xorg-server-1.6.1.901

initial import of xorg-server-1.4.2