svn merge -r571:HEAD "^/branches/released" .

24 files changed, 3032 insertions, 6946 deletions

diff --git a/xorg-server/hw/dmx/doc/Makefile.am b/xorg-server/hw/dmx/doc/Makefile.am
index b8a047baa..ef7c23da1 100644
--- a/xorg-server/hw/dmx/doc/Makefile.am
+++ b/xorg-server/hw/dmx/doc/Makefile.am
@@ -1,290 +1,290 @@
-#  Copyright 2005 Red Hat, Inc.

-#

-#  Permission to use, copy, modify, distribute, and sell this software

-#  and its documentation for any purpose is hereby granted without

-#  fee, provided that the above copyright notice appear in all copies

-#  and that both that copyright notice and this permission notice

-#  appear in supporting documentation, and that the name of Red Hat

-#  not be used in advertising or publicity pertaining to distribution

-#  of the software without specific, written prior permission.  Red

-#  Hat makes no representations about the suitability of this software

-#  for any purpose.  It is provided "as is" without express or implied

-#  warranty.

-#

-#  RED HAT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,

-#  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN

-#  NO EVENT SHALL RED HAT BE LIABLE FOR ANY SPECIAL, INDIRECT OR

-#  CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS

-#  OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,

-#  NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN

-#  CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

-

-SGML_FILES = dmx.sgml scaled.sgml

-

-if BUILD_LINUXDOC

-TXT_FILES  = $(SGML_FILES:%.sgml=%.txt)

-PS_FILES   = $(SGML_FILES:%.sgml=%.ps)

-if BUILD_PDFDOC

-PDF_FILES  = $(SGML_FILES:%.sgml=%.pdf)

-endif

-HTML_FILES = $(SGML_FILES:%.sgml=%.html)

-

-SUFFIXES = .sgml .txt .html .ps .pdf

-

-.sgml.txt:

-	@rm -f $@

-	$(MAKE_TEXT) $<

-

-.sgml.ps:

-	@rm -f $@

-	$(MAKE_PS) $<

-

-.ps.pdf:

-	@rm -f $@

-	$(MAKE_PDF) $<

-

-.sgml.html:

-	@rm -f $@

-	$(MAKE_HTML) $<

-

-noinst_DATA = $(TXT_FILES) $(PS_FILES) $(PDF_FILES) $(HTML_FILES)

-CLEANFILES = $(TXT_FILES) $(PS_FILES) $(PDF_FILES) $(HTML_FILES)

-endif

-

-if HAVE_DOXYGEN

-

-DOXYGEN_SRC=doxygen.head doxygen.foot doxygen.css doxygen.conf

-

-all-local: html/annotated.html

-

-dist-local: html/annotated.html

-

-html/annotated.html: $(DOXYGEN_SRC)

-	$(DOXYGEN) $(srcdir)/doxygen.conf

-

-maintainer-clean-local:

-	rm -rf html/

-endif

-

-EXTRA_DIST = \

-	$(SGML_FILES) \

-	DMXSpec.txt \

-	DMXSpec-v1.txt \

-	dmx.txt \

-	doxygen.conf \

-	doxygen.css \

-	doxygen.foot \

-	doxygen.head \

-	scaled.txt \

-	html/annotated.html \

-	html/ChkNotMaskEv_8c.html \

-	html/ChkNotMaskEv_8h.html \

-	html/ChkNotMaskEv_8h_source.html \

-	html/classes.html \

-	html/dmx_8h.html \

-	html/dmx_8h_source.html \

-	html/dmxarg_8c.html \

-	html/dmxarg_8h.html \

-	html/dmxarg_8h_source.html \

-	html/dmxbackend_8c.html \

-	html/dmxbackend_8h.html \

-	html/dmxbackend_8h_source.html \

-	html/dmxcb_8c.html \

-	html/dmxcb_8h.html \

-	html/dmxcb_8h_source.html \

-	html/dmxclient_8h.html \

-	html/dmxclient_8h_source.html \

-	html/dmxcmap_8c.html \

-	html/dmxcmap_8h.html \

-	html/dmxcmap_8h_source.html \

-	html/dmxcommon_8c.html \

-	html/dmxcommon_8h.html \

-	html/dmxcommon_8h_source.html \

-	html/dmxcompat_8c.html \

-	html/dmxcompat_8h.html \

-	html/dmxcompat_8h_source.html \

-	html/dmxconfig_8c.html \

-	html/dmxconfig_8h.html \

-	html/dmxconfig_8h_source.html \

-	html/dmxconsole_8c.html \

-	html/dmxconsole_8h.html \

-	html/dmxconsole_8h_source.html \

-	html/dmxcursor_8c.html \

-	html/dmxcursor_8h.html \

-	html/dmxcursor_8h_source.html \

-	html/dmxdetach_8c.html \

-	html/dmxdpms_8c.html \

-	html/dmxdpms_8h.html \

-	html/dmxdpms_8h_source.html \

-	html/dmxdummy_8c.html \

-	html/dmxdummy_8h.html \

-	html/dmxdummy_8h_source.html \

-	html/dmxevents_8c.html \

-	html/dmxevents_8h.html \

-	html/dmxevents_8h_source.html \

-	html/dmxextension_8c.html \

-	html/dmxextension_8h.html \

-	html/dmxextension_8h_source.html \

-	html/dmxfont_8c.html \

-	html/dmxfont_8h.html \

-	html/dmxfont_8h_source.html \

-	html/dmxgc_8c.html \

-	html/dmxgc_8h.html \

-	html/dmxgc_8h_source.html \

-	html/dmxgcops_8c.html \

-	html/dmxgcops_8h.html \

-	html/dmxgcops_8h_source.html \

-	html/dmx__glxvisuals_8h_source.html \

-	html/dmxinit_8c.html \

-	html/dmxinit_8h.html \

-	html/dmxinit_8h_source.html \

-	html/dmxinput_8c.html \

-	html/dmxinput_8h.html \

-	html/dmxinput_8h_source.html \

-	html/dmxinputinit_8c.html \

-	html/dmxinputinit_8h.html \

-	html/dmxinputinit_8h_source.html \

-	html/dmxlog_8c.html \

-	html/dmxlog_8h.html \

-	html/dmxlog_8h_source.html \

-	html/dmxmap_8c.html \

-	html/dmxmap_8h.html \

-	html/dmxmap_8h_source.html \

-	html/dmxmotion_8c.html \

-	html/dmxmotion_8h.html \

-	html/dmxmotion_8h_source.html \

-	html/dmxparse_8c.html \

-	html/dmxparse_8h.html \

-	html/dmxparse_8h_source.html \

-	html/dmxpict_8c.html \

-	html/dmxpict_8h.html \

-	html/dmxpict_8h_source.html \

-	html/dmxpixmap_8c.html \

-	html/dmxpixmap_8h.html \

-	html/dmxpixmap_8h_source.html \

-	html/dmxprint_8c.html \

-	html/dmxprint_8h.html \

-	html/dmxprint_8h_source.html \

-	html/dmxprop_8c.html \

-	html/dmxprop_8h.html \

-	html/dmxprop_8h_source.html \

-	html/dmxscrinit_8c.html \

-	html/dmxscrinit_8h.html \

-	html/dmxscrinit_8h_source.html \

-	html/dmxshadow_8c.html \

-	html/dmxshadow_8h.html \

-	html/dmxshadow_8h_source.html \

-	html/dmxsigio_8c.html \

-	html/dmxsigio_8h.html \

-	html/dmxsigio_8h_source.html \

-	html/dmxstat_8c.html \

-	html/dmxstat_8h.html \

-	html/dmxstat_8h_source.html \

-	html/dmxsync_8c.html \

-	html/dmxsync_8h.html \

-	html/dmxsync_8h_source.html \

-	html/dmxvisual_8c.html \

-	html/dmxvisual_8h.html \

-	html/dmxvisual_8h_source.html \

-	html/dmxwindow_8c.html \

-	html/dmxwindow_8h.html \

-	html/dmxwindow_8h_source.html \

-	html/dmxxinput_8c.html \

-	html/doxygen.css \

-	html/doxygen.png \

-	html/files.html \

-	html/ftv2blank.png \

-	html/ftv2doc.png \

-	html/ftv2folderclosed.png \

-	html/ftv2folderopen.png \

-	html/ftv2lastnode.png \

-	html/ftv2link.png \

-	html/ftv2mlastnode.png \

-	html/ftv2mnode.png \

-	html/ftv2node.png \

-	html/ftv2plastnode.png \

-	html/ftv2pnode.png \

-	html/ftv2vertline.png \

-	html/functions.html \

-	html/functions_vars.html \

-	html/globals_defs.html \

-	html/globals_enum.html \

-	html/globals_eval.html \

-	html/globals_func.html \

-	html/globals.html \

-	html/globals_type.html \

-	html/globals_vars.html \

-	html/index.html \

-	html/lnx-keyboard_8c.html \

-	html/lnx-keyboard_8h.html \

-	html/lnx-keyboard_8h_source.html \

-	html/lnx-ms_8c.html \

-	html/lnx-ms_8h.html \

-	html/lnx-ms_8h_source.html \

-	html/lnx-ps2_8c.html \

-	html/lnx-ps2_8h.html \

-	html/lnx-ps2_8h_source.html \

-	html/main.html \

-	html/struct__dmxArg.html \

-	html/struct__dmxColormapPriv.html \

-	html/structDMXConfigCmdStruct.html \

-	html/struct__DMXConfigComment.html \

-	html/struct__DMXConfigDisplay.html \

-	html/struct__DMXConfigEntry.html \

-	html/struct__DMXConfigFullDim.html \

-	html/structDMXConfigListStruct.html \

-	html/struct__DMXConfigNumber.html \

-	html/struct__DMXConfigOption.html \

-	html/struct__DMXConfigPair.html \

-	html/struct__DMXConfigParam.html \

-	html/struct__DMXConfigPartDim.html \

-	html/struct__DMXConfigString.html \

-	html/struct__DMXConfigSub.html \

-	html/struct__DMXConfigToken.html \

-	html/struct__DMXConfigVirtual.html \

-	html/struct__DMXConfigWall.html \

-	html/struct__dmxCursorPriv.html \

-	html/structDMXDesktopAttributesRec.html \

-	html/struct__DMXEventMap.html \

-	html/struct__dmxFontPriv.html \

-	html/struct__dmxGCPriv.html \

-	html/structdmxGlxVisualPrivate.html \

-	html/struct__dmxGlyphPriv.html \

-	html/structDMXInputAttributesRec.html \

-	html/struct__DMXInputInfo.html \

-	html/struct__DMXLocalInitInfo.html \

-	html/struct__DMXLocalInputInfo.html \

-	html/struct__dmxPictPriv.html \

-	html/struct__dmxPixPriv.html \

-	html/structDMXScreenAttributesRec.html \

-	html/struct__DMXScreenInfo.html \

-	html/struct__DMXStatAvg.html \

-	html/struct__DMXStatInfo.html \

-	html/structDMXWindowAttributesRec.html \

-	html/struct__dmxWinPriv.html \

-	html/struct__myPrivate.html \

-	html/tree.html \

-	html/usb-common_8c.html \

-	html/usb-common_8h.html \

-	html/usb-common_8h_source.html \

-	html/usb-keyboard_8c.html \

-	html/usb-keyboard_8h.html \

-	html/usb-keyboard_8h_source.html \

-	html/usb-mouse_8c.html \

-	html/usb-mouse_8h.html \

-	html/usb-mouse_8h_source.html \

-	html/usb-other_8c.html \

-	html/usb-other_8h.html \

-	html/usb-other_8h_source.html \

-	html/usb-private_8h.html \

-	html/usb-private_8h_source.html

-

-$(builddir)/doxygen.head:

-	$(LN_S) $(srcdir)/doxygen.head $@

-

-$(builddir)/doxygen.foot:

-	$(LN_S) $(srcdir)/doxygen.foot $@

-

-$(builddir)doxygen.css:

-	$(LN_S) $(srcdir)/doxygen.css $@

-

+#  Copyright 2005 Red Hat, Inc.
+#
+#  Permission to use, copy, modify, distribute, and sell this software
+#  and its documentation for any purpose is hereby granted without
+#  fee, provided that the above copyright notice appear in all copies
+#  and that both that copyright notice and this permission notice
+#  appear in supporting documentation, and that the name of Red Hat
+#  not be used in advertising or publicity pertaining to distribution
+#  of the software without specific, written prior permission.  Red
+#  Hat makes no representations about the suitability of this software
+#  for any purpose.  It is provided "as is" without express or implied
+#  warranty.
+#
+#  RED HAT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+#  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
+#  NO EVENT SHALL RED HAT BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+#  CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+#  OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+#  NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+#  CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+SGML_FILES = dmx.sgml scaled.sgml
+
+if BUILD_LINUXDOC
+TXT_FILES  = $(SGML_FILES:%.sgml=%.txt)
+PS_FILES   = $(SGML_FILES:%.sgml=%.ps)
+if BUILD_PDFDOC
+PDF_FILES  = $(SGML_FILES:%.sgml=%.pdf)
+endif
+HTML_FILES = $(SGML_FILES:%.sgml=%.html)
+
+SUFFIXES = .sgml .txt .html .ps .pdf
+
+.sgml.txt:
+	@rm -f $@
+	$(AM_V_GEN)$(MAKE_TEXT) $<
+
+.sgml.ps:
+	@rm -f $@
+	$(AM_V_GEN)$(MAKE_PS) $<
+
+.ps.pdf:
+	@rm -f $@
+	$(AM_V_GEN)$(MAKE_PDF) $<
+
+.sgml.html:
+	@rm -f $@
+	$(AM_V_GEN)$(MAKE_HTML) $<
+
+noinst_DATA = $(TXT_FILES) $(PS_FILES) $(PDF_FILES) $(HTML_FILES)
+CLEANFILES = $(TXT_FILES) $(PS_FILES) $(PDF_FILES) $(HTML_FILES)
+endif
+
+if HAVE_DOXYGEN
+
+DOXYGEN_SRC=doxygen.head doxygen.foot doxygen.css doxygen.conf
+
+all-local: html/annotated.html
+
+dist-local: html/annotated.html
+
+html/annotated.html: $(DOXYGEN_SRC)
+	$(DOXYGEN) $(srcdir)/doxygen.conf
+
+maintainer-clean-local:
+	rm -rf html/
+endif
+
+EXTRA_DIST = \
+	$(SGML_FILES) \
+	DMXSpec.txt \
+	DMXSpec-v1.txt \
+	dmx.txt \
+	doxygen.conf \
+	doxygen.css \
+	doxygen.foot \
+	doxygen.head \
+	scaled.txt \
+	html/annotated.html \
+	html/ChkNotMaskEv_8c.html \
+	html/ChkNotMaskEv_8h.html \
+	html/ChkNotMaskEv_8h_source.html \
+	html/classes.html \
+	html/dmx_8h.html \
+	html/dmx_8h_source.html \
+	html/dmxarg_8c.html \
+	html/dmxarg_8h.html \
+	html/dmxarg_8h_source.html \
+	html/dmxbackend_8c.html \
+	html/dmxbackend_8h.html \
+	html/dmxbackend_8h_source.html \
+	html/dmxcb_8c.html \
+	html/dmxcb_8h.html \
+	html/dmxcb_8h_source.html \
+	html/dmxclient_8h.html \
+	html/dmxclient_8h_source.html \
+	html/dmxcmap_8c.html \
+	html/dmxcmap_8h.html \
+	html/dmxcmap_8h_source.html \
+	html/dmxcommon_8c.html \
+	html/dmxcommon_8h.html \
+	html/dmxcommon_8h_source.html \
+	html/dmxcompat_8c.html \
+	html/dmxcompat_8h.html \
+	html/dmxcompat_8h_source.html \
+	html/dmxconfig_8c.html \
+	html/dmxconfig_8h.html \
+	html/dmxconfig_8h_source.html \
+	html/dmxconsole_8c.html \
+	html/dmxconsole_8h.html \
+	html/dmxconsole_8h_source.html \
+	html/dmxcursor_8c.html \
+	html/dmxcursor_8h.html \
+	html/dmxcursor_8h_source.html \
+	html/dmxdetach_8c.html \
+	html/dmxdpms_8c.html \
+	html/dmxdpms_8h.html \
+	html/dmxdpms_8h_source.html \
+	html/dmxdummy_8c.html \
+	html/dmxdummy_8h.html \
+	html/dmxdummy_8h_source.html \
+	html/dmxevents_8c.html \
+	html/dmxevents_8h.html \
+	html/dmxevents_8h_source.html \
+	html/dmxextension_8c.html \
+	html/dmxextension_8h.html \
+	html/dmxextension_8h_source.html \
+	html/dmxfont_8c.html \
+	html/dmxfont_8h.html \
+	html/dmxfont_8h_source.html \
+	html/dmxgc_8c.html \
+	html/dmxgc_8h.html \
+	html/dmxgc_8h_source.html \
+	html/dmxgcops_8c.html \
+	html/dmxgcops_8h.html \
+	html/dmxgcops_8h_source.html \
+	html/dmx__glxvisuals_8h_source.html \
+	html/dmxinit_8c.html \
+	html/dmxinit_8h.html \
+	html/dmxinit_8h_source.html \
+	html/dmxinput_8c.html \
+	html/dmxinput_8h.html \
+	html/dmxinput_8h_source.html \
+	html/dmxinputinit_8c.html \
+	html/dmxinputinit_8h.html \
+	html/dmxinputinit_8h_source.html \
+	html/dmxlog_8c.html \
+	html/dmxlog_8h.html \
+	html/dmxlog_8h_source.html \
+	html/dmxmap_8c.html \
+	html/dmxmap_8h.html \
+	html/dmxmap_8h_source.html \
+	html/dmxmotion_8c.html \
+	html/dmxmotion_8h.html \
+	html/dmxmotion_8h_source.html \
+	html/dmxparse_8c.html \
+	html/dmxparse_8h.html \
+	html/dmxparse_8h_source.html \
+	html/dmxpict_8c.html \
+	html/dmxpict_8h.html \
+	html/dmxpict_8h_source.html \
+	html/dmxpixmap_8c.html \
+	html/dmxpixmap_8h.html \
+	html/dmxpixmap_8h_source.html \
+	html/dmxprint_8c.html \
+	html/dmxprint_8h.html \
+	html/dmxprint_8h_source.html \
+	html/dmxprop_8c.html \
+	html/dmxprop_8h.html \
+	html/dmxprop_8h_source.html \
+	html/dmxscrinit_8c.html \
+	html/dmxscrinit_8h.html \
+	html/dmxscrinit_8h_source.html \
+	html/dmxshadow_8c.html \
+	html/dmxshadow_8h.html \
+	html/dmxshadow_8h_source.html \
+	html/dmxsigio_8c.html \
+	html/dmxsigio_8h.html \
+	html/dmxsigio_8h_source.html \
+	html/dmxstat_8c.html \
+	html/dmxstat_8h.html \
+	html/dmxstat_8h_source.html \
+	html/dmxsync_8c.html \
+	html/dmxsync_8h.html \
+	html/dmxsync_8h_source.html \
+	html/dmxvisual_8c.html \
+	html/dmxvisual_8h.html \
+	html/dmxvisual_8h_source.html \
+	html/dmxwindow_8c.html \
+	html/dmxwindow_8h.html \
+	html/dmxwindow_8h_source.html \
+	html/dmxxinput_8c.html \
+	html/doxygen.css \
+	html/doxygen.png \
+	html/files.html \
+	html/ftv2blank.png \
+	html/ftv2doc.png \
+	html/ftv2folderclosed.png \
+	html/ftv2folderopen.png \
+	html/ftv2lastnode.png \
+	html/ftv2link.png \
+	html/ftv2mlastnode.png \
+	html/ftv2mnode.png \
+	html/ftv2node.png \
+	html/ftv2plastnode.png \
+	html/ftv2pnode.png \
+	html/ftv2vertline.png \
+	html/functions.html \
+	html/functions_vars.html \
+	html/globals_defs.html \
+	html/globals_enum.html \
+	html/globals_eval.html \
+	html/globals_func.html \
+	html/globals.html \
+	html/globals_type.html \
+	html/globals_vars.html \
+	html/index.html \
+	html/lnx-keyboard_8c.html \
+	html/lnx-keyboard_8h.html \
+	html/lnx-keyboard_8h_source.html \
+	html/lnx-ms_8c.html \
+	html/lnx-ms_8h.html \
+	html/lnx-ms_8h_source.html \
+	html/lnx-ps2_8c.html \
+	html/lnx-ps2_8h.html \
+	html/lnx-ps2_8h_source.html \
+	html/main.html \
+	html/struct__dmxArg.html \
+	html/struct__dmxColormapPriv.html \
+	html/structDMXConfigCmdStruct.html \
+	html/struct__DMXConfigComment.html \
+	html/struct__DMXConfigDisplay.html \
+	html/struct__DMXConfigEntry.html \
+	html/struct__DMXConfigFullDim.html \
+	html/structDMXConfigListStruct.html \
+	html/struct__DMXConfigNumber.html \
+	html/struct__DMXConfigOption.html \
+	html/struct__DMXConfigPair.html \
+	html/struct__DMXConfigParam.html \
+	html/struct__DMXConfigPartDim.html \
+	html/struct__DMXConfigString.html \
+	html/struct__DMXConfigSub.html \
+	html/struct__DMXConfigToken.html \
+	html/struct__DMXConfigVirtual.html \
+	html/struct__DMXConfigWall.html \
+	html/struct__dmxCursorPriv.html \
+	html/structDMXDesktopAttributesRec.html \
+	html/struct__DMXEventMap.html \
+	html/struct__dmxFontPriv.html \
+	html/struct__dmxGCPriv.html \
+	html/structdmxGlxVisualPrivate.html \
+	html/struct__dmxGlyphPriv.html \
+	html/structDMXInputAttributesRec.html \
+	html/struct__DMXInputInfo.html \
+	html/struct__DMXLocalInitInfo.html \
+	html/struct__DMXLocalInputInfo.html \
+	html/struct__dmxPictPriv.html \
+	html/struct__dmxPixPriv.html \
+	html/structDMXScreenAttributesRec.html \
+	html/struct__DMXScreenInfo.html \
+	html/struct__DMXStatAvg.html \
+	html/struct__DMXStatInfo.html \
+	html/structDMXWindowAttributesRec.html \
+	html/struct__dmxWinPriv.html \
+	html/struct__myPrivate.html \
+	html/tree.html \
+	html/usb-common_8c.html \
+	html/usb-common_8h.html \
+	html/usb-common_8h_source.html \
+	html/usb-keyboard_8c.html \
+	html/usb-keyboard_8h.html \
+	html/usb-keyboard_8h_source.html \
+	html/usb-mouse_8c.html \
+	html/usb-mouse_8h.html \
+	html/usb-mouse_8h_source.html \
+	html/usb-other_8c.html \
+	html/usb-other_8h.html \
+	html/usb-other_8h_source.html \
+	html/usb-private_8h.html \
+	html/usb-private_8h_source.html
+
+$(builddir)/doxygen.head:
+	$(LN_S) $(srcdir)/doxygen.head $@
+
+$(builddir)/doxygen.foot:
+	$(LN_S) $(srcdir)/doxygen.foot $@
+
+$(builddir)doxygen.css:
+	$(LN_S) $(srcdir)/doxygen.css $@
+
diff --git a/xorg-server/hw/dmx/doc/dmx.txt b/xorg-server/hw/dmx/doc/dmx.txt
deleted file mode 100644
index 568c75178..000000000
--- a/xorg-server/hw/dmx/doc/dmx.txt
+++ /dev/null
@@ -1,2989 +0,0 @@
-  Distributed Multihead X design
-  Kevin E. Martin, David H. Dawes, and Rickard E. Faith
-
-  29 June 2004 (created 25 July 2001)
-
-  This document covers the motivation, background, design, and implemen-
-  tation of the distributed multihead X (DMX) system.  It is a living
-  document and describes the current design and implementation details
-  of the DMX system.  As the project progresses, this document will be
-  continually updated to reflect the changes in the code and/or design.
-  _C_o_p_y_r_i_g_h_t _2_0_0_1 _b_y _V_A _L_i_n_u_x _S_y_s_t_e_m_s_, _I_n_c_._, _F_r_e_m_o_n_t_, _C_a_l_i_f_o_r_n_i_a_.  _C_o_p_y_-
-  _r_i_g_h_t _2_0_0_1_-_2_0_0_4 _b_y _R_e_d _H_a_t_, _I_n_c_._, _R_a_l_e_i_g_h_, _N_o_r_t_h _C_a_r_o_l_i_n_a
-
-  ______________________________________________________________________
-
-  Table of Contents
-
-
-
-  1. Introduction
-     1.1 The Distributed Multihead X Server
-     1.2 Layout of Paper
-
-  2. Development plan
-     2.1 Bootstrap code
-     2.2 Input device handling
-     2.3 Output device handling
-        2.3.1 Initialization
-        2.3.2 Handling rendering requests
-     2.4 Optimizing DMX
-     2.5 DMX X extension support
-     2.6 Common X extension support
-     2.7 OpenGL support
-
-  3. Current issues
-     3.1 Fonts
-     3.2 Zero width rendering primitives
-     3.3 Output scaling
-     3.4 Per-screen colormaps
-
-  A. Background
-     A.1 Core input device handling
-        A.1.1 InitInput()
-        A.1.2 InitAndStartDevices()
-        A.1.3 devReadInput()
-        A.1.4 ProcessInputEvents()
-        A.1.5 DisableDevice()
-        A.1.6 CloseDevice()
-        A.1.7 LegalModifier()
-     A.2 Output handling
-        A.2.1 InitOutput()
-        A.2.2 AddScreen()
-        A.2.3 ScreenInit()
-        A.2.4 CloseScreen()
-        A.2.5 GC operations
-        A.2.6 Xnest
-        A.2.7 Shadow framebuffer
-     A.3 Xinerama
-        A.3.1 Xinerama-specific changes to the DIX code
-        A.3.2 Xinerama-specific changes to the MI code
-        A.3.3 Intercepted DIX core requests
-
-  B. Development Results
-     B.1 Phase I
-        B.1.1 Scope
-        B.1.2 Results
-        B.1.3 X Test Suite
-           B.1.3.1 Introduction
-           B.1.3.2 Expected Failures for a Single Head
-           B.1.3.3 Expected Failures for Xinerama
-           B.1.3.4 Additional Failures from Xdmx
-           B.1.3.5 Summary and Future Work
-        B.1.4 Fonts
-        B.1.5 Performance
-        B.1.6 Pixmaps
-     B.2 Phase II
-        B.2.1 Moving from XFree86 4.1.99.1 to 4.2.0.0
-        B.2.2 Global changes
-        B.2.3 XSync() Batching
-        B.2.4 Offscreen Optimization
-        B.2.5 Lazy Window Creation Optimization
-        B.2.6 Subdividing Rendering Primitives
-        B.2.7 Summary of x11perf Data
-        B.2.8 Profiling with OProfile
-        B.2.9 X Test Suite
-     B.3 Phase III
-        B.3.1 SHAPE
-        B.3.2 RENDER
-        B.3.3 XKEYBOARD
-        B.3.4 XInput
-        B.3.5 DPMS
-        B.3.6 Other Extensions
-     B.4 Phase IV
-        B.4.1 Moving to XFree86 4.3.0
-        B.4.2 Extensions
-           B.4.2.1 XC-MISC (supported)
-           B.4.2.2 Extended-Visual-Information (supported)
-           B.4.2.3 RES (supported)
-           B.4.2.4 BIG-REQUESTS (supported)
-           B.4.2.5 XSYNC (supported)
-           B.4.2.6 XTEST, RECORD, DEC-XTRAP (supported) and XTestExtension1 (not supported)
-           B.4.2.7 MIT-MISC (not supported)
-           B.4.2.8 SCREENSAVER (not supported)
-           B.4.2.9 GLX (supported)
-           B.4.2.10 RENDER (supported)
-           B.4.2.11 Summary
-        B.4.3 Additional Testing with the X Test Suite
-           B.4.3.1 XFree86 without XTEST
-           B.4.3.2 XFree86 with XTEST
-           B.4.3.3 Xdmx with XTEST, without Xinerama, without GLX
-           B.4.3.4 Xdmx with XTEST, with Xinerama, without GLX
-           B.4.3.5 Xdmx with XTEST, with Xinerama, with GLX
-           B.4.3.6 Conclusion
-        B.4.4 Dynamic Reconfiguration
-           B.4.4.1 Dynamic reconfiguration extension
-           B.4.4.2 Bounding box
-           B.4.4.3 Sample applications
-           B.4.4.4 Additional notes
-        B.4.5 Doxygen documentation
-        B.4.6 Valgrind
-        B.4.7 RATS
-
-
-  ______________________________________________________________________
-
-  11..  IInnttrroodduuccttiioonn
-
-  11..11..  TThhee DDiissttrriibbuutteedd MMuullttiihheeaadd XX SSeerrvveerr
-
-  Current Open Source multihead solutions are limited to a single
-  physical machine.  A single X server controls multiple display
-  devices, which can be arranged as independent heads or unified into a
-  single desktop (with Xinerama).  These solutions are limited to the
-  number of physical devices that can co-exist in a single machine
-  (e.g., due to the number of AGP/PCI slots available for graphics
-  cards).  Thus, large tiled displays are not currently possible.  The
-  work described in this paper will eliminate the requirement that the
-  display devices reside in the same physical machine.  This will be
-  accomplished by developing a front-end proxy X server that will
-  control multiple back-end X servers that make up the large display.
-
-
-  The overall structure of the distributed multihead X (DMX) project is
-  as follows: A single front-end X server will act as a proxy to a set
-  of back-end X servers, which handle all of the visible rendering.  X
-  clients will connect to the front-end server just as they normally
-  would to a regular X server.  The front-end server will present an
-  abstracted view to the client of a single large display.  This will
-  ensure that all standard X clients will continue to operate without
-  modification (limited, as always, by the visuals and extensions
-  provided by the X server).  Clients that are DMX-aware will be able to
-  use an extension to obtain information about the back-end servers
-  (e.g., for placement of pop-up windows, window alignments by the
-  window manager, etc.).
-
-
-  The architecture of the DMX server is divided into two main sections:
-  input (e.g., mouse and keyboard events) and output (e.g., rendering
-  and windowing requests).  Each of these are describe briefly below,
-  and the rest of this design document will describe them in greater
-  detail.
-
-
-  The DMX server can receive input from three general types of input
-  devices: "local" devices that are physically attached to the machine
-  on which DMX is running, "backend" devices that are physically
-  attached to one or more of the back-end X servers (and that generate
-  events via the X protocol stream from the backend), and "console"
-  devices that can be abstracted from any non-back-end X server.
-  Backend and console devices are treated differently because the
-  pointer device on the back-end X server also controls the location of
-  the hardware X cursor.  Full support for XInput extension devices is
-  provided.
-
-
-  Rendering requests will be accepted by the front-end server; however,
-  rendering to visible windows will be broken down as needed and sent to
-  the appropriate back-end server(s) via X11 library calls for actual
-  rendering.  The basic framework will follow a Xnest-style approach.
-  GC state will be managed in the front-end server and sent to the
-  appropriate back-end server(s) as required.  Pixmap rendering will (at
-  least initially) be handled by the front-end X server.  Windowing
-  requests (e.g., ordering, mapping, moving, etc.) will handled in the
-  front-end server.  If the request requires a visible change, the
-  windowing operation will be translated into requests for the
-  appropriate back-end server(s).  Window state will be mirrored in the
-  back-end server(s) as needed.
-
-
-  11..22..  LLaayyoouutt ooff PPaappeerr
-
-  The next section describes the general development plan that was
-  actually used for implementation.  The final section discusses
-  outstanding issues at the conclusion of development.  The first
-  appendix provides low-level technical detail that may be of interest
-  to those intimately familiar with the X server architecture.  The
-  final appendix describes the four phases of development that were
-  performed during the first two years of development.
-
-
-  The final year of work was divided into 9 tasks that are not described
-  in specific sections of this document.  The major tasks during that
-  time were the enhancement of the reconfiguration ability added in
-  Phase IV, addition of support for a dynamic number of back-end
-  displays (instead of a hard-coded limit), and the support for back-end
-  display and input removal and addition.  This work is mentioned in
-  this paper, but is not covered in detail.
-
-
-  22..  DDeevveellooppmmeenntt ppllaann
-
-  This section describes the development plan from approximately June
-  2001 through July 2003.
-
-
-
-  22..11..  BBoooottssttrraapp ccooddee
-
-  To allow for rapid development of the DMX server by multiple
-  developers during the first development stage, the problem will be
-  broken down into three tasks: the overall DMX framework, back-end
-  rendering services and input device handling services.  However,
-  before the work begins on these tasks, a simple framework that each
-  developer could use was implemented to bootstrap the development
-  effort.  This framework renders to a single back-end server and
-  provides dummy input devices (i.e., the keyboard and mouse).  The
-  simple back-end rendering service was implemented using the shadow
-  framebuffer support currently available in the XFree86 environment.
-
-
-  Using this bootstrapping framework, each developer has been able to
-  work on each of the tasks listed above independently as follows: the
-  framework will be extended to handle arbitrary back-end server
-  configurations; the back-end rendering services will be transitioned
-  to the more efficient Xnest-style implementation; and, an input device
-  framework to handle various input devices via the input extension will
-  be developed.
-
-
-  Status: The boot strap code is complete.
-
-
-
-  22..22..  IInnppuutt ddeevviiccee hhaannddlliinngg
-
-  An X server (including the front-end X server) requires two core input
-  devices -- a keyboard and a pointer (mouse).  These core devices are
-  handled and required by the core X11 protocol.  Additional types of
-  input devices may be attached and utilized via the XInput extension.
-  These are usually referred to as ``XInput extension devices'',
-
-
-  There are some options as to how the front-end X server gets its core
-  input devices:
-
-
-  1. Local Input. The physical input devices (e.g., keyboard and mouse)
-     can be attached directly to the front-end X server.  In this case,
-     the keyboard and mouse on the machine running the front-end X
-     server will be used.  The front-end will have drivers to read the
-     raw input from those devices and convert it into the required X
-     input events (e.g., key press/release, pointer button
-     press/release, pointer motion).  The front-end keyboard driver will
-     keep track of keyboard properties such as key and modifier
-     mappings, autorepeat state, keyboard sound and led state.
-     Similarly the front-end pointer driver will keep track if pointer
-     properties such as the button mapping and movement acceleration
-     parameters.  With this option, input is handled fully in the front-
-     end X server, and the back-end X servers are used in a display-only
-     mode.  This option was implemented and works for a limited number
-     of Linux-specific devices.  Adding additional local input devices
-     for other architectures is expected to be relatively simple.
-
-
-     The following options are available for implementing local input
-     devices:
-
-
-     a. The XFree86 X server has modular input drivers that could be
-        adapted for this purpose.  The mouse driver supports a wide
-        range of mouse types and interfaces, as well as a range of
-        Operating System platforms.  The keyboard driver in XFree86 is
-        not currently as modular as the mouse driver, but could be made
-        so.  The XFree86 X server also has a range of other input
-        drivers for extended input devices such as tablets and touch
-        screens.  Unfortunately, the XFree86 drivers are generally
-        complex, often simultaneously providing support for multiple
-        devices across multiple architectures; and rely so heavily on
-        XFree86-specific helper-functions, that this option was not
-        pursued.
-
-
-     b. The kdrive X server in XFree86 has built-in drivers that support
-        PS/2 mice and keyboard under Linux.  The mouse driver can
-        indirectly handle other mouse types if the Linux utility gpm is
-        used as to translate the native mouse protocol into PS/2 mouse
-        format.  These drivers could be adapted and built in to the
-        front-end X server if this range of hardware and OS support is
-        sufficient.  While much simpler than the XFree86 drivers, the
-        kdrive drivers were not used for the DMX implementation.
-
-     c. Reimplementation of keyboard and mouse drivers from scratch for
-        the DMX framework.  Because keyboard and mouse drivers are
-        relatively trivial to implement, this pathway was selected.
-        Other drivers in the X source tree were referenced, and
-        significant contributions from other drivers are noted in the
-        DMX source code.
-
-
-  2. Backend Input.  The front-end can make use of the core input
-     devices attached to one or more of the back-end X servers.  Core
-     input events from multiple back-ends are merged into a single input
-     event stream.  This can work sanely when only a single set of input
-     devices is used at any given time.  The keyboard and pointer state
-     will be handled in the front-end, with changes propagated to the
-     back-end servers as needed.  This option was implemented and works
-     well.  Because the core pointer on a back-end controls the hardware
-     mouse on that back-end, core pointers cannot be treated as XInput
-     extension devices.  However, all back-end XInput extensions devices
-     can be mapped to either DMX core or DMX XInput extension devices.
-
-  3. Console Input.  The front-end server could create a console window
-     that is displayed on an X server independent of the back-end X
-     servers.  This console window could display things like the
-     physical screen layout, and the front-end could get its core input
-     events from events delivered to the console window.  This option
-     was implemented and works well.  To help the human navigate, window
-     outlines are also displayed in the console window.  Further,
-     console windows can be used as either core or XInput extension
-     devices.
-
-  4. Other options were initially explored, but they were all partial
-     subsets of the options listed above and, hence, are irrelevant.
-
-
-  Although extended input devices are not specifically mentioned in the
-  Distributed X requirements, the options above were all implemented so
-  that XInput extension devices were supported.
-
-
-  The bootstrap code (Xdmx) had dummy input devices, and these are still
-  supported in the final version.  These do the necessary initialization
-  to satisfy the X server's requirements for core pointer and keyboard
-  devices, but no input events are ever generated.
-
-
-  Status: The input code is complete.  Because of the complexity of the
-  XFree86 input device drivers (and their heavy reliance on XFree86
-  infrastructure), separate low-level device drivers were implemented
-  for Xdmx.  The following kinds of drivers are supported (in general,
-  the devices can be treated arbitrarily as "core" input devices or as
-  XInput "extension" devices; and multiple instances of different kinds
-  of devices can be simultaneously available):
-
-  1. A "dummy" device drive that never generates events.
-
-  2. "Local" input is from the low-level hardware on which the Xdmx
-     binary is running.  This is the only area where using the XFree86
-     driver infrastructure would have been helpful, and then only
-     partially, since good support for generic USB devices does not yet
-     exist in XFree86 (in any case, XFree86 and kdrive driver code was
-     used where possible).  Currently, the following local devices are
-     supported under Linux (porting to other operating systems should be
-     fairly straightforward):
-
-     +o  Linux keyboard
-
-     +o  Linux serial mouse (MS)
-
-     +o  Linux PS/2 mouse
-
-     +o  USB keyboard
-
-     +o  USB mouse
-
-     +o  USB generic device (e.g., joystick, gamepad, etc.)
-
-
-  3. "Backend" input is taken from one or more of the back-end displays.
-     In this case, events are taken from the back-end X server and are
-     converted to Xdmx events.  Care must be taken so that the sprite
-     moves properly on the display from which input is being taken.
-
-  4. "Console" input is taken from an X window that Xdmx creates on the
-     operator's display (i.e., on the machine running the Xdmx binary).
-     When the operator's mouse is inside the console window, then those
-     events are converted to Xdmx events.  Several special features are
-     available: the console can display outlines of windows that are on
-     the Xdmx display (to facilitate navigation), the cursor can be
-     confined to the console, and a "fine" mode can be activated to
-     allow very precise cursor positioning.
-
-
-
-  22..33..  OOuuttppuutt ddeevviiccee hhaannddlliinngg
-
-  The output of the DMX system displays rendering and windowing requests
-  across multiple screens.  The screens are typically arranged in a grid
-  such that together they represent a single large display.
-
-
-  The output section of the DMX code consists of two parts.  The first
-  is in the front-end proxy X server (Xdmx), which accepts client
-  connections, manages the windows, and potentially renders primitives
-  but does not actually display any of the drawing primitives.  The
-  second part is the back-end X server(s), which accept commands from
-  the front-end server and display the results on their screens.
-
-
-  22..33..11..  IInniittiiaalliizzaattiioonn
-
-  The DMX front-end must first initialize its screens by connecting to
-  each of the back-end X servers and collecting information about each
-  of these screens.  However, the information collected from the back-
-  end X servers might be inconsistent.  Handling these cases can be
-  difficult and/or inefficient.  For example, a two screen system has
-  one back-end X server running at 16bpp while the second is running at
-  32bpp.  Converting rendering requests (e.g., XPutImage() or
-  XGetImage() requests) to the appropriate bit depth can be very time
-  consuming.  Analyzing these cases to determine how or even if it is
-  possible to handle them is required.  The current Xinerama code
-  handles many of these cases (e.g., in PanoramiXConsolidate()) and will
-  be used as a starting point.  In general, the best solution is to use
-  homogeneous X servers and display devices.  Using back-end servers
-  with the same depth is a requirement of the final DMX implementation.
-
-
-  Once this screen consolidation is finished, the relative position of
-  each back-end X server's screen in the unified screen is initialized.
-  A full-screen window is opened on each of the back-end X servers, and
-  the cursor on each screen is turned off.  The final DMX implementation
-  can also make use of a partial-screen window, or multiple windows per
-  back-end screen.
-
-
-  22..33..22..  HHaannddlliinngg rreennddeerriinngg rreeqquueessttss
-
-  After initialization, X applications connect to the front-end server.
-  There are two possible implementations of how rendering and windowing
-  requests are handled in the DMX system:
-
-
-  1. A shadow framebuffer is used in the front-end server as the render
-     target.  In this option, all protocol requests are completely
-     handled in the front-end server.  All state and resources are
-     maintained in the front-end including a shadow copy of the entire
-     framebuffer.  The framebuffers attached to the back-end servers are
-     updated by XPutImage() calls with data taken directly from the
-     shadow framebuffer.
-
-
-     This solution suffers from two main problems.  First, it does not
-     take advantage of any accelerated hardware available in the system.
-     Second, the size of the XPutImage() calls can be quite large and
-     thus will be limited by the bandwidth available.
-
-
-     The initial DMX implementation used a shadow framebuffer by
-     default.
-
-
-  2. Rendering requests are sent to each back-end server for handling
-     (as is done in the Xnest server described above).  In this option,
-     certain protocol requests are handled in the front-end server and
-     certain requests are repackaged and then sent to the back-end
-     servers.  The framebuffer is distributed across the multiple back-
-     end servers.  Rendering to the framebuffer is handled on each back-
-     end and can take advantage of any acceleration available on the
-     back-end servers' graphics display device.  State is maintained
-     both in the front and back-end servers.
-
-
-     This solution suffers from two main drawbacks.  First, protocol
-     requests are sent to all back-end servers -- even those that will
-     completely clip the rendering primitive -- which wastes bandwidth
-     and processing time.  Second, state is maintained both in the
-     front- and back-end servers.  These drawbacks are not as severe as
-     in option 1 (above) and can either be overcome through
-     optimizations or are acceptable.  Therefore, this option will be
-     used in the final implementation.
-
-
-     The final DMX implementation defaults to this mechanism, but also
-     supports the shadow framebuffer mechanism.  Several optimizations
-     were implemented to eliminate the drawbacks of the default
-     mechanism.  These optimizations are described the section below and
-     in Phase II of the Development Results (see appendix).
-
-
-
-  Status: Both the shadow framebuffer and Xnest-style code is complete.
-
-
-
-  22..44..  OOppttiimmiizziinngg DDMMXX
-
-  Initially, the Xnest-style solution's performance will be measured and
-  analyzed to determine where the performance bottlenecks exist.  There
-  are four main areas that will be addressed.
-
-
-  First, to obtain reasonable interactivity with the first development
-  phase, XSync() was called after each protocol request.  The XSync()
-  function flushes any pending protocol requests.  It then waits for the
-  back-end to process the request and send a reply that the request has
-  completed.  This happens with each back-end server and performance
-  greatly suffers.  As a result of the way XSync() is called in the
-  first development phase, the batching that the X11 library performs is
-  effectively defeated.  The XSync() call usage will be analyzed and
-  optimized by batching calls and performing them at regular intervals,
-  except where interactivity will suffer (e.g., on cursor movements).
-
-
-  Second, the initial Xnest-style solution described above sends the
-  repackaged protocol requests to all back-end servers regardless of
-  whether or not they would be completely clipped out.  The requests
-  that are trivially rejected on the back-end server wastes the limited
-  bandwidth available.  By tracking clipping changes in the DMX X
-  server's windowing code (e.g., by opening, closing, moving or resizing
-  windows), we can determine whether or not back-end windows are visible
-  so that trivial tests in the front-end server's GC ops drawing
-  functions can eliminate these unnecessary protocol requests.
-
-
-  Third, each protocol request will be analyzed to determine if it is
-  possible to break the request into smaller pieces at display
-  boundaries.  The initial ones to be analyzed are put and get image
-  requests since they will require the greatest bandwidth to transmit
-  data between the front and back-end servers.  Other protocol requests
-  will be analyzed and those that will benefit from breaking them into
-  smaller requests will be implemented.
-
-
-  Fourth, an extension is being considered that will allow font glyphs
-  to be transferred from the front-end DMX X server to each back-end
-  server.  This extension will permit the front-end to handle all font
-  requests and eliminate the requirement that all back-end X servers
-  share the exact same fonts as the front-end server.  We are
-  investigating the feasibility of this extension during this
-  development phase.
-
-
-  Other potential optimizations will be determined from the performance
-  analysis.
-
-  Please note that in our initial design, we proposed optimizing BLT
-  operations (e.g., XCopyArea() and window moves) by developing an
-  extension that would allow individual back-end servers to directly
-  copy pixel data to other back-end servers.  This potential
-  optimization was in response to the simple image movement
-  implementation that required potentially many calls to GetImage() and
-  PutImage().  However, the current Xinerama implementation handles
-  these BLT operations differently.  Instead of copying data to and from
-  screens, they generate expose events -- just as happens in the case
-  when a window is moved from off a screen to on screen.  This approach
-  saves the limited bandwidth available between front and back-end
-  servers and is being standardized with Xinerama.  It also eliminates
-  the potential setup problems and security issues resulting from having
-  each back-end server open connections to all other back-end servers.
-  Therefore, we suggest accepting Xinerama's expose event solution.
-
-
-  Also note that the approach proposed in the second and third
-  optimizations might cause backing store algorithms in the back-end to
-  be defeated, so a DMX X server configuration flag will be added to
-  disable these optimizations.
-
-
-  Status: The optimizations proposed above are complete.  It was
-  determined that the using the xfs font server was sufficient and
-  creating a new mechanism to pass glyphs was redundant; therefore, the
-  fourth optimization proposed above was not included in DMX.
-
-
-
-  22..55..  DDMMXX XX eexxtteennssiioonn ssuuppppoorrtt
-
-  The DMX X server keeps track of all the windowing information on the
-  back-end X servers, but does not currently export this information to
-  any client applications.  An extension will be developed to pass the
-  screen information and back-end window IDs to DMX-aware clients.
-  These clients can then use this information to directly connect to and
-  render to the back-end windows.  Bypassing the DMX X server allows
-  DMX-aware clients to break up complex rendering requests on their own
-  and send them directly to the windows on the back-end server's
-  screens.  An example of a client that can make effective use of this
-  extension is Chromium.
-
-
-  Status: The extension, as implemented, is fully documented in "Client-
-  to-Server DMX Extension to the X Protocol".  Future changes might be
-  required based on feedback and other proposed enhancements to DMX.
-  Currently, the following facilities are supported:
-
-  1. Screen information (clipping rectangle for each screen relative to
-     the virtual screen)
-
-  2. Window information (window IDs and clipping information for each
-     back-end window that corresponds to each DMX window)
-
-  3. Input device information (mappings from DMX device IDs to back-end
-     device IDs)
-
-  4. Force window creation (so that a client can override the server-
-     side lazy window creation optimization)
-
-  5. Reconfiguration (so that a client can request that a screen
-     position be changed)
-
-  6. Addition and removal of back-end servers and back-end and console
-     inputs.
-  22..66..  CCoommmmoonn XX eexxtteennssiioonn ssuuppppoorrtt
-
-  The XInput, XKeyboard and Shape extensions are commonly used
-  extensions to the base X11 protocol.  XInput allows multiple and non-
-  standard input devices to be accessed simultaneously.  These input
-  devices can be connected to either the front-end or back-end servers.
-  XKeyboard allows much better keyboard mappings control.  Shape adds
-  support for arbitrarily shaped windows and is used by various window
-  managers.  Nearly all potential back-end X servers make these
-  extensions available, and support for each one will be added to the
-  DMX system.
-
-
-  In addition to the extensions listed above, support for the X
-  Rendering extension (Render) is being developed.  Render adds digital
-  image composition to the rendering model used by the X Window System.
-  While this extension is still under development by Keith Packard of
-  HP, support for the current version will be added to the DMX system.
-
-
-  Support for the XTest extension was added during the first development
-  phase.
-
-
-  Status: The following extensions are supported and are discussed in
-  more detail in Phase IV of the Development Results (see appendix):
-  BIG-REQUESTS, DEC-XTRAP, DMX, DPMS, Extended-Visual-Information, GLX,
-  LBX, RECORD, RENDER, SECURITY, SHAPE, SYNC, X-Resource, XC-APPGROUP,
-  XC-MISC, XFree86-Bigfont, XINERAMA, XInputExtension, XKEYBOARD, and
-  XTEST.
-
-
-  22..77..  OOppeennGGLL ssuuppppoorrtt
-
-  OpenGL support using the Mesa code base exists in XFree86 release 4
-  and later.  Currently, the direct rendering infrastructure (DRI)
-  provides accelerated OpenGL support for local clients and
-  unaccelerated OpenGL support (i.e., software rendering) is provided
-  for non-local clients.
-
-
-  The single head OpenGL support in XFree86 4.x will be extended to use
-  the DMX system.  When the front and back-end servers are on the same
-  physical hardware, it is possible to use the DRI to directly render to
-  the back-end servers.  First, the existing DRI will be extended to
-  support multiple display heads, and then to support the DMX system.
-  OpenGL rendering requests will be direct rendering to each back-end X
-  server.  The DRI will request the screen layout (either from the
-  existing Xinerama extension or a DMX-specific extension).  Support for
-  synchronized swap buffers will also be added (on hardware that
-  supports it).  Note that a single front-end server with a single back-
-  end server on the same physical machine can emulate accelerated
-  indirect rendering.
-
-
-  When the front and back-end servers are on different physical hardware
-  or are using non-XFree86 4.x X servers, a mechanism to render
-  primitives across the back-end servers will be provided.  There are
-  several options as to how this can be implemented.
-
-
-  1. The existing OpenGL support in each back-end server can be used by
-     repackaging rendering primitives and sending them to each back-end
-     server.  This option is similar to the unoptimized Xnest-style
-     approach mentioned above.  Optimization of this solution is beyond
-     the scope of this project and is better suited to other distributed
-     rendering systems.
-
-  2. Rendering to a pixmap in the front-end server using the current
-     XFree86 4.x code, and then displaying to the back-ends via calls to
-     XPutImage() is another option.  This option is similar to the
-     shadow frame buffer approach mentioned above.  It is slower and
-     bandwidth intensive, but has the advantage that the back-end
-     servers are not required to have OpenGL support.
-
-
-  These, and other, options will be investigated in this phase of the
-  work.
-
-
-  Work by others have made Chromium DMX-aware.  Chromium will use the
-  DMX X protocol extension to obtain information about the back-end
-  servers and will render directly to those servers, bypassing DMX.
-
-
-  Status: OpenGL support by the glxProxy extension was implemented by
-  SGI and has been integrated into the DMX code base.
-
-
-
-  33..  CCuurrrreenntt iissssuueess
-
-  In this sections the current issues are outlined that require further
-  investigation.
-
-
-  33..11..  FFoonnttss
-
-  The font path and glyphs need to be the same for the front-end and
-  each of the back-end servers.  Font glyphs could be sent to the back-
-  end servers as necessary but this would consume a significant amount
-  of available bandwidth during font rendering for clients that use many
-  different fonts (e.g., Netscape).  Initially, the font server (xfs)
-  will be used to provide the fonts to both the front-end and back-end
-  servers.  Other possibilities will be investigated during development.
-
-
-  33..22..  ZZeerroo wwiiddtthh rreennddeerriinngg pprriimmiittiivveess
-
-  To allow pixmap and on-screen rendering to be pixel perfect, all back-
-  end servers must render zero width primitives exactly the same as the
-  front-end renders the primitives to pixmaps.  For those back-end
-  servers that do not exactly match, zero width primitives will be
-  automatically converted to one width primitives.  This can be handled
-  in the front-end server via the GC state.
-
-
-  33..33..  OOuuttppuutt ssccaalliinngg
-
-  With very large tiled displays, it might be difficult to read the
-  information on the standard X desktop.  In particular, the cursor can
-  be easily lost and fonts could be difficult to read.  Automatic
-  primitive scaling might prove to be very useful.  We will investigate
-  the possibility of scaling the cursor and providing a set of alternate
-  pre-scaled fonts to replace the standard fonts that many applications
-  use (e.g., fixed).  Other options for automatic scaling will also be
-  investigated.
-
-
-
-  33..44..  PPeerr--ssccrreeeenn ccoolloorrmmaappss
-
-  Each screen's default colormap in the set of back-end X servers should
-  be able to be adjusted via a configuration utility.  This support is
-  would allow the back-end screens to be calibrated via custom gamma
-  tables.  On 24-bit systems that support a DirectColor visual, this
-  type of correction can be accommodated.  One possible implementation
-  would be to advertise to X client of the DMX server a TrueColor visual
-  while using DirectColor visuals on the back-end servers to implement
-  this type of color correction.  Other options will be investigated.
-
-
-  AA..  BBaacckkggrroouunndd
-
-  This section describes the existing Open Source architectures that can
-  be used to handle multiple screens and upon which this development
-  project is based.  This section was written before the implementation
-  was finished, and may not reflect actual details of the
-  implementation.  It is left for historical interest only.
-
-
-  AA..11..  CCoorree iinnppuutt ddeevviiccee hhaannddlliinngg
-
-  The following is a description of how core input devices are handled
-  by an X server.
-
-
-  AA..11..11..  IInniittIInnppuutt(())
-
-  InitInput() is a DDX function that is called at the start of each
-  server generation from the X server's main() function.  Its purpose is
-  to determine what input devices are connected to the X server,
-  register them with the DIX and MI layers, and initialize the input
-  event queue.  InitInput() does not have a return value, but the X
-  server will abort if either a core keyboard device or a core pointer
-  device are not registered.  Extended input (XInput) devices can also
-  be registered in InitInput().
-
-
-  InitInput() usually has implementation specific code to determine
-  which input devices are available.  For each input device it will be
-  using, it calls AddInputDevice():
-
-
-     AAddddIInnppuuttDDeevviiccee(())
-        This DIX function allocates the device structure, registers a
-        callback function (which handles device init, close, on and
-        off), and returns the input handle, which can be treated as
-        opaque.  It is called once for each input device.
-
-
-  Once input handles for core keyboard and core pointer devices have
-  been obtained from AddInputDevice(), they are registered as core
-  devices by calling RegisterPointerDevice() and
-  RegisterKeyboardDevice().  Each of these should be called once.  If
-  both core devices are not registered, then the X server will exit with
-  a fatal error when it attempts to start the input devices in
-  InitAndStartDevices(), which is called directly after InitInput() (see
-  below).
-
-
-     RReeggiisstteerr{{PPooiinntteerr,,KKeeyybbooaarrdd}}DDeevviiccee(())
-        These DIX functions take a handle returned from AddInputDevice()
-        and initialize the core input device fields in inputInfo, and
-        initialize the input processing and grab functions for each core
-        input device.
-  The core pointer device is then registered with the miPointer code
-  (which does the high level cursor handling).  While this registration
-  is not necessary for correct miPointer operation in the current
-  XFree86 code, it is still done mostly for compatibility reasons.
-
-
-     mmiiRReeggiisstteerrPPooiinntteerrDDeevviiccee(())
-        This MI function registers the core pointer's input handle with
-        with the miPointer code.
-
-
-  The final part of InitInput() is the initialization of the input event
-  queue handling.  In most cases, the event queue handling provided in
-  the MI layer is used.  The primary XFree86 X server uses its own event
-  queue handling to support some special cases related to the XInput
-  extension and the XFree86-specific DGA extension.  For our purposes,
-  the MI event queue handling should be suitable.  It is initialized by
-  calling mieqInit():
-
-
-     mmiieeqqIInniitt(())
-        This MI function initializes the MI event queue for the core
-        devices, and is passed the public component of the input handles
-        for the two core devices.
-
-
-  If a wakeup handler is required to deliver synchronous input events,
-  it can be registered here by calling the DIX function
-  RegisterBlockAndWakeupHandlers().  (See the devReadInput() description
-  below.)
-
-
-  AA..11..22..  IInniittAAnnddSSttaarrttDDeevviicceess(())
-
-  InitAndStartDevices() is a DIX function that is called immediately
-  after InitInput() from the X server's main() function.  Its purpose is
-  to initialize each input device that was registered with
-  AddInputDevice(), enable each input device that was successfully
-  initialized, and create the list of enabled input devices.  Once each
-  registered device is processed in this way, the list of enabled input
-  devices is checked to make sure that both a core keyboard device and
-  core pointer device were registered and successfully enabled.  If not,
-  InitAndStartDevices() returns failure, and results in the the X server
-  exiting with a fatal error.
-
-
-  Each registered device is initialized by calling its callback
-  (dev->deviceProc) with the DEVICE_INIT argument:
-
-
-     ((**ddeevv-->>ddeevviicceePPrroocc))((ddeevv,, DDEEVVIICCEE__IINNIITT))
-        This function initializes the device structs with core
-        information relevant to the device.
-
-
-        For pointer devices, this means specifying the number of
-        buttons, default button mapping, the function used to get motion
-        events (usually miPointerGetMotionEvents()), the function used
-        to change/control the core pointer motion parameters
-        (acceleration and threshold), and the motion buffer size.
-
-
-        For keyboard devices, this means specifying the keycode range,
-        default keycode to keysym mapping, default modifier mapping, and
-        the functions used to sound the keyboard bell and modify/control
-        the keyboard parameters (LEDs, bell pitch and duration, key
-        click, which keys are auto-repeating, etc).
-
-
-  Each initialized device is enabled by calling EnableDevice():
-
-
-     EEnnaabblleeDDeevviiccee(())
-        EnableDevice() calls the device callback with DEVICE_ON:
-
-        ((**ddeevv-->>ddeevviicceePPrroocc))((ddeevv,, DDEEVVIICCEE__OONN))
-           This typically opens and initializes the relevant physical
-           device, and when appropriate, registers the device's file
-           descriptor (or equivalent) as a valid input source.
-
-
-        EnableDevice() then adds the device handle to the X server's
-        global list of enabled devices.
-
-
-  InitAndStartDevices() then verifies that a valid core keyboard and
-  pointer has been initialized and enabled.  It returns failure if
-  either are missing.
-
-
-  AA..11..33..  ddeevvRReeaaddIInnppuutt(())
-
-  Each device will have some function that gets called to read its
-  physical input.  These may be called in a number of different ways.
-  In the case of synchronous I/O, they will be called from a DDX wakeup-
-  handler that gets called after the server detects that new input is
-  available.  In the case of asynchronous I/O, they will be called from
-  a (SIGIO) signal handler triggered when new input is available.  This
-  function should do at least two things: make sure that input events
-  get enqueued, and make sure that the cursor gets moved for motion
-  events (except if these are handled later by the driver's own event
-  queue processing function, which cannot be done when using the MI
-  event queue handling).
-
-
-  Events are queued by calling mieqEnqueue():
-
-
-     mmiieeqqEEnnqquueeuuee(())
-        This MI function is used to add input events to the event queue.
-        It is simply passed the event to be queued.
-
-
-  The cursor position should be updated when motion events are enqueued,
-  by calling either miPointerAbsoluteCursor() or miPointerDeltaCursor():
-
-
-     mmiiPPooiinntteerrAAbbssoolluutteeCCuurrssoorr(())
-        This MI function is used to move the cursor to the absolute
-        coordinates provided.
-
-     mmiiPPooiinntteerrDDeellttaaCCuurrssoorr(())
-        This MI function is used to move the cursor relative to its
-        current position.
-
-
-  AA..11..44..  PPrroocceessssIInnppuuttEEvveennttss(())
-
-  ProcessInputEvents() is a DDX function that is called from the X
-  server's main dispatch loop when new events are available in the input
-  event queue.  It typically processes the enqueued events, and updates
-  the cursor/pointer position.  It may also do other DDX-specific event
-  processing.
-
-
-  Enqueued events are processed by mieqProcessInputEvents() and passed
-  to the DIX layer for transmission to clients:
-
-
-     mmiieeqqPPrroocceessssIInnppuuttEEvveennttss(())
-        This function processes each event in the event queue, and
-        passes it to the device's input processing function.  The DIX
-        layer provides default functions to do this processing, and they
-        handle the task of getting the events passed back to the
-        relevant clients.
-
-     mmiiPPooiinntteerrUUppddaattee(())
-        This function resynchronized the cursor position with the new
-        pointer position.  It also takes care of moving the cursor
-        between screens when needed in multi-head configurations.
-
-
-
-  AA..11..55..  DDiissaabblleeDDeevviiccee(())
-
-  DisableDevice is a DIX function that removes an input device from the
-  list of enabled devices.  The result of this is that the device no
-  longer generates input events.  The device's data structures are kept
-  in place, and disabling a device like this can be reversed by calling
-  EnableDevice().  DisableDevice() may be called from the DDX when it is
-  desirable to do so (e.g., the XFree86 server does this when VT
-  switching).  Except for special cases, this is not normally called for
-  core input devices.
-
-
-  DisableDevice() calls the device's callback function with DEVICE_OFF:
-
-
-     ((**ddeevv-->>ddeevviicceePPrroocc))((ddeevv,, DDEEVVIICCEE__OOFFFF))
-        This typically closes the relevant physical device, and when
-        appropriate, unregisters the device's file descriptor (or
-        equivalent) as a valid input source.
-
-
-  DisableDevice() then removes the device handle from the X server's
-  global list of enabled devices.
-
-
-
-  AA..11..66..  CClloosseeDDeevviiccee(())
-
-  CloseDevice is a DIX function that removes an input device from the
-  list of available devices.  It disables input from the device and
-  frees all data structures associated with the device.  This function
-  is usually called from CloseDownDevices(), which is called from main()
-  at the end of each server generation to close all input devices.
-
-
-  CloseDevice() calls the device's callback function with DEVICE_CLOSE:
-
-
-     ((**ddeevv-->>ddeevviicceePPrroocc))((ddeevv,, DDEEVVIICCEE__CCLLOOSSEE))
-        This typically closes the relevant physical device, and when
-        appropriate, unregisters the device's file descriptor (or
-        equivalent) as a valid input source.  If any device specific
-        data structures were allocated when the device was initialized,
-        they are freed here.
-
-  CloseDevice() then frees the data structures that were allocated for
-  the device when it was registered/initialized.
-
-
-
-  AA..11..77..  LLeeggaallMMooddiiffiieerr(())
-
-  LegalModifier() is a required DDX function that can be used to
-  restrict which keys may be modifier keys.  This seems to be present
-  for historical reasons, so this function should simply return TRUE
-  unconditionally.
-
-
-
-  AA..22..  OOuuttppuutt hhaannddlliinngg
-
-  The following sections describe the main functions required to
-  initialize, use and close the output device(s) for each screen in the
-  X server.
-
-
-  AA..22..11..  IInniittOOuuttppuutt(())
-
-  This DDX function is called near the start of each server generation
-  from the X server's main() function.  InitOutput()'s main purpose is
-  to initialize each screen and fill in the global screenInfo structure
-  for each screen.  It is passed three arguments: a pointer to the
-  screenInfo struct, which it is to initialize, and argc and argv from
-  main(), which can be used to determine additional configuration
-  information.
-
-
-  The primary tasks for this function are outlined below:
-
-
-  1. PPaarrssee ccoonnffiigguurraattiioonn iinnffoo:: The first task of InitOutput() is to
-     parses any configuration information from the configuration file.
-     In addition to the XF86Config file, other configuration information
-     can be taken from the command line.  The command line options can
-     be gathered either in InitOutput() or earlier in the
-     ddxProcessArgument() function, which is called by
-     ProcessCommandLine().  The configuration information determines the
-     characteristics of the screen(s).  For example, in the XFree86 X
-     server, the XF86Config file specifies the monitor information, the
-     screen resolution, the graphics devices and slots in which they are
-     located, and, for Xinerama, the screens' layout.
-
-  2. IInniittiiaalliizzee ssccrreeeenn iinnffoo:: The next task is to initialize the screen-
-     dependent internal data structures.  For example, part of what the
-     XFree86 X server does is to allocate its screen and pixmap private
-     indices, probe for graphics devices, compare the probed devices to
-     the ones listed in the XF86Config file, and add the ones that match
-     to the internal xf86Screens[] structure.
-
-  3. SSeett ppiixxmmaapp ffoorrmmaattss:: The next task is to initialize the screenInfo's
-     image byte order, bitmap bit order and bitmap scanline unit/pad.
-     The screenInfo's pixmap format's depth, bits per pixel and scanline
-     padding is also initialized at this stage.
-
-  4. UUnniiffyy ssccrreeeenn iinnffoo:: An optional task that might be done at this
-     stage is to compare all of the information from the various screens
-     and determines if they are compatible (i.e., if the set of screens
-     can be unified into a single desktop).  This task has potential to
-     be useful to the DMX front-end server, if Xinerama's
-     PanoramiXConsolidate() function is not sufficient.
-
-  Once these tasks are complete, the valid screens are known and each of
-  these screens can be initialized by calling AddScreen().
-
-
-  AA..22..22..  AAddddSSccrreeeenn(())
-
-  This DIX function is called from InitOutput(), in the DDX layer, to
-  add each new screen to the screenInfo structure.  The DDX screen
-  initialization function and command line arguments (i.e., argc and
-  argv) are passed to it as arguments.
-
-
-  This function first allocates a new Screen structure and any privates
-  that are required.  It then initializes some of the fields in the
-  Screen struct and sets up the pixmap padding information.  Finally, it
-  calls the DDX screen initialization function ScreenInit(), which is
-  described below.  It returns the number of the screen that were just
-  added, or -1 if there is insufficient memory to add the screen or if
-  the DDX screen initialization fails.
-
-
-  AA..22..33..  SSccrreeeennIInniitt(())
-
-  This DDX function initializes the rest of the Screen structure with
-  either generic or screen-specific functions (as necessary).  It also
-  fills in various screen attributes (e.g., width and height in
-  millimeters, black and white pixel values).
-
-
-  The screen init function usually calls several functions to perform
-  certain screen initialization functions.  They are described below:
-
-
-     {{mmii,,**ffbb}}SSccrreeeennIInniitt(())
-        The DDX layer's ScreenInit() function usually calls another
-        layer's ScreenInit() function (e.g., miScreenInit() or
-        fbScreenInit()) to initialize the fallbacks that the DDX driver
-        does not specifically handle.
-
-
-        After calling another layer's ScreenInit() function, any screen-
-        specific functions either wrap or replace the other layer's
-        function pointers.  If a function is to be wrapped, each of the
-        old function pointers from the other layer are stored in a
-        screen private area.  Common functions to wrap are CloseScreen()
-        and SaveScreen().
-
-
-     mmiiIInniittiiaalliizzeeBBaacckkiinnggSSttoorree(())
-        This MI function initializes the screen's backing storage
-        functions, which are used to save areas of windows that are
-        currently covered by other windows.
-
-
-     mmiiDDCCIInniittiiaalliizzee(())
-        This MI function initializes the MI cursor display structures
-        and function pointers.  If a hardware cursor is used, the DDX
-        layer's ScreenInit() function will wrap additional screen and
-        the MI cursor display function pointers.
-
-
-  Another common task for ScreenInit() function is to initialize the
-  output device state.  For example, in the XFree86 X server, the
-  ScreenInit() function saves the original state of the video card and
-  then initializes the video mode of the graphics device.
-
-  AA..22..44..  CClloosseeSSccrreeeenn(())
-
-  This function restores any wrapped screen functions (and in particular
-  the wrapped CloseScreen() function) and restores the state of the
-  output device to its original state.  It should also free any private
-  data it created during the screen initialization.
-
-
-  AA..22..55..  GGCC ooppeerraattiioonnss
-
-  When the X server is requested to render drawing primitives, it does
-  so by calling drawing functions through the graphics context's
-  operation function pointer table (i.e., the GCOps functions).  These
-  functions render the basic graphics operations such as drawing
-  rectangles, lines, text or copying pixmaps.  Default routines are
-  provided either by the MI layer, which draws indirectly through a
-  simple span interface, or by the framebuffer layers (e.g., CFB, MFB,
-  FB), which draw directly to a linearly mapped frame buffer.
-
-
-  To take advantage of special hardware on the graphics device, specific
-  GCOps functions can be replaced by device specific code.  However,
-  many times the graphics devices can handle only a subset of the
-  possible states of the GC, so during graphics context validation,
-  appropriate routines are selected based on the state and capabilities
-  of the hardware.  For example, some graphics hardware can accelerate
-  single pixel width lines with certain dash patterns.  Thus, for dash
-  patterns that are not supported by hardware or for width 2 or greater
-  lines, the default routine is chosen during GC validation.
-
-
-  Note that some pointers to functions that draw to the screen are
-  stored in the Screen structure.  They include GetImage(), GetSpans(),
-  PaintWindowBackground(), PaintWindowBorder(), CopyWindow() and
-  RestoreAreas().
-
-
-  AA..22..66..  XXnneesstt
-
-  The Xnest X server is a special proxy X server that relays the X
-  protocol requests that it receives to a ``real'' X server that then
-  processes the requests and displays the results, if applicable.  To
-  the X applications, Xnest appears as if it is a regular X server.
-  However, Xnest is both server to the X application and client of the
-  real X server, which will actually handle the requests.
-
-
-  The Xnest server implements all of the standard input and output
-  initialization steps outlined above.
-
-
-     IInniittOOuuttppuutt(())
-        Xnest takes its configuration information from command line
-        arguments via ddxProcessArguments().  This information includes
-        the real X server display to connect to, its default visual
-        class, the screen depth, the Xnest window's geometry, etc.
-        Xnest then connects to the real X server and gathers visual,
-        colormap, depth and pixmap information about that server's
-        display, creates a window on that server, which will be used as
-        the root window for Xnest.
-
-
-        Next, Xnest initializes its internal data structures and uses
-        the data from the real X server's pixmaps to initialize its own
-        pixmap formats.  Finally, it calls AddScreen(xnestOpenScreen,
-        argc, argv) to initialize each of its screens.
-     SSccrreeeennIInniitt(())
-        Xnest's ScreenInit() function is called xnestOpenScreen().  This
-        function initializes its screen's depth and visual information,
-        and then calls miScreenInit() to set up the default screen
-        functions.  It then calls miInitializeBackingStore() and
-        miDCInitialize() to initialize backing store and the software
-        cursor.  Finally, it replaces many of the screen functions with
-        its own functions that repackage and send the requests to the
-        real X server to which Xnest is attached.
-
-
-     CClloosseeSSccrreeeenn(())
-        This function frees its internal data structure allocations.
-        Since it replaces instead of wrapping screen functions, there
-        are no function pointers to unwrap.  This can potentially lead
-        to problems during server regeneration.
-
-
-     GGCC ooppeerraattiioonnss
-        The GC operations in Xnest are very simple since they leave all
-        of the drawing to the real X server to which Xnest is attached.
-        Each of the GCOps takes the request and sends it to the real X
-        server using standard Xlib calls.  For example, the X
-        application issues a XDrawLines() call.  This function turns
-        into a protocol request to Xnest, which calls the
-        xnestPolylines() function through Xnest's GCOps function pointer
-        table.  The xnestPolylines() function is only a single line,
-        which calls XDrawLines() using the same arguments that were
-        passed into it.  Other GCOps functions are very similar.  Two
-        exceptions to the simple GCOps functions described above are the
-        image functions and the BLT operations.
-
-
-        The image functions, GetImage() and PutImage(), must use a
-        temporary image to hold the image to be put of the image that
-        was just grabbed from the screen while it is in transit to the
-        real X server or the client.  When the image has been
-        transmitted, the temporary image is destroyed.
-
-
-        The BLT operations, CopyArea() and CopyPlane(), handle not only
-        the copy function, which is the same as the simple cases
-        described above, but also the graphics exposures that result
-        when the GC's graphics exposure bit is set to True.  Graphics
-        exposures are handled in a helper function,
-        xnestBitBlitHelper().  This function collects the exposure
-        events from the real X server and, if any resulting in regions
-        being exposed, then those regions are passed back to the MI
-        layer so that it can generate exposure events for the X
-        application.
-
-
-  The Xnest server takes its input from the X server to which it is
-  connected.  When the mouse is in the Xnest server's window, keyboard
-  and mouse events are received by the Xnest server, repackaged and sent
-  back to any client that requests those events.
-
-
-  AA..22..77..  SShhaaddooww ffrraammeebbuuffffeerr
-
-  The most common type of framebuffer is a linear array memory that maps
-  to the video memory on the graphics device.  However, accessing that
-  video memory over an I/O bus (e.g., ISA or PCI) can be slow.  The
-  shadow framebuffer layer allows the developer to keep the entire
-  framebuffer in main memory and copy it back to video memory at regular
-  intervals.  It also has been extended to handle planar video memory
-  and rotated framebuffers.
-
-
-  There are two main entry points to the shadow framebuffer code:
-
-
-     sshhaaddoowwAAlllloocc((wwiiddtthh,, hheeiigghhtt,, bbpppp))
-        This function allocates the in memory copy of the framebuffer of
-        size width*height*bpp.  It returns a pointer to that memory,
-        which will be used by the framebuffer ScreenInit() code during
-        the screen's initialization.
-
-
-     sshhaaddoowwIInniitt((ppSSccrreeeenn,, uuppddaatteePPrroocc,, wwiinnddoowwPPrroocc))
-        This function initializes the shadow framebuffer layer.  It
-        wraps several screen drawing functions, and registers a block
-        handler that will update the screen.  The updateProc is a
-        function that will copy the damaged regions to the screen, and
-        the windowProc is a function that is used when the entire linear
-        video memory range cannot be accessed simultaneously so that
-        only a window into that memory is available (e.g., when using
-        the VGA aperture).
-
-
-  The shadow framebuffer code keeps track of the damaged area of each
-  screen by calculating the bounding box of all drawing operations that
-  have occurred since the last screen update.  Then, when the block
-  handler is next called, only the damaged portion of the screen is
-  updated.
-
-
-  Note that since the shadow framebuffer is kept in main memory, all
-  drawing operations are performed by the CPU and, thus, no accelerated
-  hardware drawing operations are possible.
-
-
-
-  AA..33..  XXiinneerraammaa
-
-  Xinerama is an X extension that allows multiple physical screens
-  controlled by a single X server to appear as a single screen.
-  Although the extension allows clients to find the physical screen
-  layout via extension requests, it is completely transparent to clients
-  at the core X11 protocol level.  The original public implementation of
-  Xinerama came from Digital/Compaq.  XFree86 rewrote it, filling in
-  some missing pieces and improving both X11 core protocol compliance
-  and performance.  The Xinerama extension will be passing through
-  X.Org's standardization process in the near future, and the sample
-  implementation will be based on this rewritten version.
-
-
-  The current implementation of Xinerama is based primarily in the DIX
-  (device independent) and MI (machine independent) layers of the X
-  server.  With few exceptions the DDX layers do not need any changes to
-  support Xinerama.  X server extensions often do need modifications to
-  provide full Xinerama functionality.
-
-
-  The following is a code-level description of how Xinerama functions.
-
-
-  Note: Because the Xinerama extension was originally called the
-  PanoramiX extension, many of the Xinerama functions still have the
-  PanoramiX prefix.
-
-
-     PPaannoorraammiiXXEExxtteennssiioonnIInniitt(())
-        PanoramiXExtensionInit() is a device-independent extension
-        function that is called at the start of each server generation
-        from InitExtensions(), which is called from the X server's
-        main() function after all output devices have been initialized,
-        but before any input devices have been initialized.
-
-
-        PanoramiXNumScreens is set to the number of physical screens.
-        If only one physical screen is present, the extension is
-        disabled, and PanoramiXExtensionInit() returns without doing
-        anything else.
-
-
-        The Xinerama extension is registered by calling AddExtension().
-
-
-        A local per-screen array of data structures (panoramiXdataPtr[])
-        is allocated for each physical screen, and GC and Screen private
-        indexes are allocated, and both GC and Screen private areas are
-        allocated for each physical screen.  These hold Xinerama-
-        specific per-GC and per-Screen data.  Each screen's CreateGC and
-        CloseScreen functions are wrapped by XineramaCreateGC() and
-        XineramaCloseScreen() respectively.  Some new resource classes
-        are created for Xinerama drawables and GCs, and resource types
-        for Xinerama windows, pixmaps and colormaps.
-
-
-        A region (XineramaScreenRegions[i]) is initialized for each
-        physical screen, and single region (PanoramiXScreenRegion) is
-        initialized to be the union of the screen regions.  The
-        panoramiXdataPtr[] array is also initialized with the size and
-        origin of each screen.  The relative positioning information for
-        the physical screens is taken from the array dixScreenOrigins[],
-        which the DDX layer must initialize in InitOutput().  The bounds
-        of the combined screen is also calculated (PanoramiXPixWidth and
-        PanoramiXPixHeight).
-
-
-        The DIX layer has a list of function pointers (ProcVector[])
-        that holds the entry points for the functions that process core
-        protocol requests.  The requests that Xinerama must intercept
-        and break up into physical screen-specific requests are wrapped.
-        The original set is copied to SavedProcVector[].  The types of
-        requests intercepted are Window requests, GC requests, colormap
-        requests, drawing requests, and some geometry-related requests.
-        This wrapping allows the bulk of the protocol request processing
-        to be handled transparently to the DIX layer.  Some operations
-        cannot be dealt with in this way and are handled with Xinerama-
-        specific code within the DIX layer.
-
-
-     PPaannoorraammiiXXCCoonnssoolliiddaattee(())
-        PanoramiXConsolidate() is a device-independent extension
-        function that is called directly from the X server's main()
-        function after extensions and input/output devices have been
-        initialized, and before the root windows are defined and
-        initialized.
-
-
-        This function finds the set of depths (PanoramiXDepths[]) and
-        visuals (PanoramiXVisuals[]) common to all of the physical
-        screens.  PanoramiXNumDepths is set to the number of common
-        depths, and PanoramiXNumVisuals is set to the number of common
-        visuals.  Resources are created for the single root window and
-        the default colormap.  Each of these resources has per-physical
-        screen entries.
-
-
-     PPaannoorraammiiXXCCrreeaatteeCCoonnnneeccttiioonnBBlloocckk(())
-        PanoramiXConsolidate() is a device-independent extension
-        function that is called directly from the X server's main()
-        function after the per-physical screen root windows are created.
-        It is called instead of the standard DIX CreateConnectionBlock()
-        function.  If this function returns FALSE, the X server exits
-        with a fatal error.  This function will return FALSE if no
-        common depths were found in PanoramiXConsolidate().  With no
-        common depths, Xinerama mode is not possible.
-
-
-        The connection block holds the information that clients get when
-        they open a connection to the X server.  It includes information
-        such as the supported pixmap formats, number of screens and the
-        sizes, depths, visuals, default colormap information, etc, for
-        each of the screens (much of information that xdpyinfo shows).
-        The connection block is initialized with the combined single
-        screen values that were calculated in the above two functions.
-
-
-        The Xinerama extension allows the registration of connection
-        block callback functions.  The purpose of these is to allow
-        other extensions to do processing at this point.  These
-        callbacks can be registered by calling
-        XineramaRegisterConnectionBlockCallback() from the other
-        extension's ExtensionInit() function.  Each registered
-        connection block callback is called at the end of
-        PanoramiXCreateConnectionBlock().
-
-
-  AA..33..11..  XXiinneerraammaa--ssppeecciiffiicc cchhaannggeess ttoo tthhee DDIIXX ccooddee
-
-  There are a few types of Xinerama-specific changes within the DIX
-  code.  The main ones are described here.
-
-
-  Functions that deal with colormap or GC -related operations outside of
-  the intercepted protocol requests have a test added to only do the
-  processing for screen numbers > 0.  This is because they are handled
-  for the single Xinerama screen and the processing is done once for
-  screen 0.
-
-
-  The handling of motion events does some coordinate translation between
-  the physical screen's origin and screen zero's origin.  Also, motion
-  events must be reported relative to the composite screen origin rather
-  than the physical screen origins.
-
-
-  There is some special handling for cursor, window and event processing
-  that cannot (either not at all or not conveniently) be done via the
-  intercepted protocol requests.  A particular case is the handling of
-  pointers moving between physical screens.
-
-
-  AA..33..22..  XXiinneerraammaa--ssppeecciiffiicc cchhaannggeess ttoo tthhee MMII ccooddee
-
-  The only Xinerama-specific change to the MI code is in
-  miSendExposures() to handle the coordinate (and window ID) translation
-  for expose events.
-
-
-
-  AA..33..33..  IInntteerrcceepptteedd DDIIXX ccoorree rreeqquueessttss
-
-  Xinerama breaks up drawing requests for dispatch to each physical
-  screen.  It also breaks up windows into pieces for each physical
-  screen.  GCs are translated into per-screen GCs.  Colormaps are
-  replicated on each physical screen.  The functions handling the
-  intercepted requests take care of breaking the requests and
-  repackaging them so that they can be passed to the standard request
-  handling functions for each screen in turn.  In addition, and to aid
-  the repackaging, the information from many of the intercepted requests
-  is used to keep up to date the necessary state information for the
-  single composite screen.  Requests (usually those with replies) that
-  can be satisfied completely from this stored state information do not
-  call the standard request handling functions.
-
-
-
-  BB..  DDeevveellooppmmeenntt RReessuullttss
-
-  In this section the results of each phase of development are
-  discussed.  This development took place between approximately June
-  2001 and July 2003.
-
-
-  BB..11..  PPhhaassee II
-
-  The initial development phase dealt with the basic implementation
-  including the bootstrap code, which used the shadow framebuffer, and
-  the unoptimized implementation, based on an Xnest-style
-  implementation.
-
-
-  BB..11..11..  SSccooppee
-
-  The goal of Phase I is to provide fundamental functionality that can
-  act as a foundation for ongoing work:
-
-  1. Develop the proxy X server
-
-     +o  The proxy X server will operate on the X11 protocol and relay
-        requests as necessary to correctly perform the request.
-
-     +o  Work will be based on the existing work for Xinerama and Xnest.
-
-     +o  Input events and windowing operations are handled in the proxy
-        server and rendering requests are repackaged and sent to each of
-        the back-end servers for display.
-
-     +o  The multiple screen layout (including support for overlapping
-        screens) will be user configurable via a configuration file or
-        through the configuration tool.
-
-  2. Develop graphical configuration tool
-
-     +o  There will be potentially a large number of X servers to
-        configure into a single display.  The tool will allow the user
-        to specify which servers are involved in the configuration and
-        how they should be laid out.
-
-  3. Pass the X Test Suite
-
-     +o  The X Test Suite covers the basic X11 operations.  All tests
-        known to succeed must correctly operate in the distributed X
-        environment.
-
-
-  For this phase, the back-end X servers are assumed to be unmodified X
-  servers that do not support any DMX-related protocol extensions;
-  future optimization pathways are considered, but are not implemented;
-  and the configuration tool is assumed to rely only on libraries in the
-  X source tree (e.g., Xt).
-
-
-  BB..11..22..  RReessuullttss
-
-  The proxy X server, Xdmx, was developed to distribute X11 protocol
-  requests to the set of back-end X servers.  It opens a window on each
-  back-end server, which represents the part of the front-end's root
-  window that is visible on that screen.  It mirrors window, pixmap and
-  other state in each back-end server.  Drawing requests are sent to
-  either windows or pixmaps on each back-end server.  This code is based
-  on Xnest and uses the existing Xinerama extension.
-
-
-  Input events can be taken from (1) devices attached to the back-end
-  server, (2) core devices attached directly to the Xdmx server, or (3)
-  from a ``console'' window on another X server.  Events for these
-  devices are gathered, processed and delivered to clients attached to
-  the Xdmx server.
-
-
-  An intuitive configuration format was developed to help the user
-  easily configure the multiple back-end X servers.  It was defined (see
-  grammar in Xdmx man page) and a parser was implemented that is used by
-  the Xdmx server and by a standalone xdmxconfig utility.  The parsing
-  support was implemented such that it can be easily factored out of the
-  X source tree for use with other tools (e.g., vdl).  Support for
-  converting legacy vdl-format configuration files to the DMX format is
-  provided by the vdltodmx utility.
-
-
-  Originally, the configuration file was going to be a subsection of
-  XFree86's XF86Config file, but that was not possible since Xdmx is a
-  completely separate X server.  Thus, a separate config file format was
-  developed.  In addition, a graphical configuration tool, xdmxconfig,
-  was developed to allow the user to create and arrange the screens in
-  the configuration file.  The --ccoonnffiiggffiillee and --ccoonnffiigg command-line
-  options can be used to start Xdmx using a configuration file.
-
-
-  An extension that enables remote input testing is required for the X
-  Test Suite to function.  During this phase, this extension (XTEST) was
-  implemented in the Xdmx server.  The results from running the X Test
-  Suite are described in detail below.
-
-
-  BB..11..33..  XX TTeesstt SSuuiittee
-
-  BB..11..33..11..  IInnttrroodduuccttiioonn
-
-  The X Test Suite contains tests that verify Xlib functions operate
-  correctly.  The test suite is designed to run on a single X server;
-  however, since X applications will not be able to tell the difference
-  between the DMX server and a standard X server, the X Test Suite
-  should also run on the DMX server.
-
-  The Xdmx server was tested with the X Test Suite, and the existing
-  failures are noted in this section.  To put these results in
-  perspective, we first discuss expected X Test failures and how errors
-  in underlying systems can impact Xdmx test results.
-
-
-  BB..11..33..22..  EExxppeecctteedd FFaaiilluurreess ffoorr aa SSiinnggllee HHeeaadd
-
-  A correctly implemented X server with a single screen is expected to
-  fail certain X Test tests.  The following well-known errors occur
-  because of rounding error in the X server code:
-
-  XDrawArc: Tests 42, 63, 66, 73
-  XDrawArcs: Tests 45, 66, 69, 76
-
-
-
-  The following failures occur because of the high-level X server
-  implementation:
-
-  XLoadQueryFont: Test 1
-  XListFontsWithInfo: Tests 3, 4
-  XQueryFont: Tests 1, 2
-
-
-
-  The following test fails when running the X server as root under Linux
-  because of the way directory modes are interpreted:
-
-  XWriteBitmapFile: Test 3
-
-
-
-  Depending on the video card used for the back-end, other failures may
-  also occur because of bugs in the low-level driver implementation.
-  Over time, failures of this kind are usually fixed by XFree86, but
-  will show up in Xdmx testing until then.
-
-
-  BB..11..33..33..  EExxppeecctteedd FFaaiilluurreess ffoorr XXiinneerraammaa
-
-  Xinerama fails several X Test Suite tests because of design decisions
-  made for the current implementation of Xinerama.  Over time, many of
-  these errors will be corrected by XFree86 and the group working on a
-  new Xinerama implementation.  Therefore, Xdmx will also share X Suite
-  Test failures with Xinerama.
-
-  We may be able to fix or work-around some of these failures at the
-  Xdmx level, but this will require additional exploration that was not
-  part of Phase I.
-
-  Xinerama is constantly improving, and the list of Xinerama-related
-  failures depends on XFree86 version and the underlying graphics
-  hardware.  We tested with a variety of hardware, including nVidia, S3,
-  ATI Radeon, and Matrox G400 (in dual-head mode).  The list below
-  includes only those failures that appear to be from the Xinerama
-  layer, and does not include failures listed in the previous section,
-  or failures that appear to be from the low-level graphics driver
-  itself:
-
-  These failures were noted with multiple Xinerama configurations:
-
-  XCopyPlane: Tests 13, 22, 31 (well-known Xinerama implementation issue)
-  XSetFontPath: Test 4
-  XGetDefault: Test 5
-  XMatchVisualInfo: Test 1
-
-
-
-  These failures were noted only when using one dual-head video card
-  with a 4.2.99.x XFree86 server:
-
-  XListPixmapFormats: Test 1
-  XDrawRectangles: Test 45
-
-
-
-  These failures were noted only when using two video cards from
-  different vendors with a 4.1.99.x XFree86 server:
-
-  XChangeWindowAttributes: Test 32
-  XCreateWindow: Test 30
-  XDrawLine: Test 22
-  XFillArc: Test 22
-  XChangeKeyboardControl: Tests 9, 10
-  XRebindKeysym: Test 1
-
-
-
-  BB..11..33..44..  AAddddiittiioonnaall FFaaiilluurreess ffrroomm XXddmmxx
-
-  When running Xdmx, no unexpected failures were noted.  Since the Xdmx
-  server is based on Xinerama, we expect to have most of the Xinerama
-  failures present in the Xdmx server.  Similarly, since the Xdmx server
-  must rely on the low-level device drivers on each back-end server, we
-  also expect that Xdmx will exhibit most of the back-end failures.
-  Here is a summary:
-
-  XListPixmapFormats: Test 1 (configuration dependent)
-  XChangeWindowAttributes: Test 32
-  XCreateWindow: Test 30
-  XCopyPlane: Test 13, 22, 31
-  XSetFontPath: Test 4
-  XGetDefault: Test 5 (configuration dependent)
-  XMatchVisualInfo: Test 1
-  XRebindKeysym: Test 1 (configuration dependent)
-
-
-
-  Note that this list is shorter than the combined list for Xinerama
-  because Xdmx uses different code paths to perform some Xinerama
-  operations.  Further, some Xinerama failures have been fixed in the
-  XFree86 4.2.99.x CVS repository.
-
-
-  BB..11..33..55..  SSuummmmaarryy aanndd FFuuttuurree WWoorrkk
-
-  Running the X Test Suite on Xdmx does not produce any failures that
-  cannot be accounted for by the underlying Xinerama subsystem used by
-  the front-end or by the low-level device-driver code running on the
-  back-end X servers.  The Xdmx server therefore is as ``correct'' as
-  possible with respect to the standard set of X Test Suite tests.
-
-  During the following phases, we will continue to verify Xdmx
-  correctness using the X Test Suite.  We may also use other tests
-  suites or write additional tests that run under the X Test Suite that
-  specifically verify the expected behavior of DMX.
-
-
-
-  BB..11..44..  FFoonnttss
-
-  In Phase I, fonts are handled directly by both the front-end and the
-  back-end servers, which is required since we must treat each back-end
-  server during this phase as a ``black box''.  What this requires is
-  that tthhee ffrroonntt-- aanndd bbaacckk--eenndd sseerrvveerrss mmuusstt sshhaarree tthhee eexxaacctt ssaammee ffoonntt
-  ppaatthh.  There are two ways to help make sure that all servers share the
-  same font path:
-
-
-  1. First, each server can be configured to use the same font server.
-     The font server, xfs, can be configured to serve fonts to multiple
-     X servers via TCP.
-
-  2. Second, each server can be configured to use the same font path and
-     either those font paths can be copied to each back-end machine or
-     they can be mounted (e.g., via NFS) on each back-end machine.
-
-
-  One additional concern is that a client program can set its own font
-  path, and if it does so, then that font path must be available on each
-  back-end machine.
-
-
-  The -fontpath command line option was added to allow users to
-  initialize the font path of the front end server.  This font path is
-  propagated to each back-end server when the default font is loaded.
-  If there are any problems, an error message is printed, which will
-  describe the problem and list the current font path.  For more
-  information about setting the font path, see the -fontpath option
-  description in the man page.
-
-
-  BB..11..55..  PPeerrffoorrmmaannccee
-
-  Phase I of development was not intended to optimize performance.  Its
-  focus was on completely and correctly handling the base X11 protocol
-  in the Xdmx server.  However, several insights were gained during
-  Phase I, which are listed here for reference during the next phase of
-  development.
-
-
-  1. Calls to XSync() can slow down rendering since it requires a
-     complete round trip to and from a back-end server.  This is
-     especially problematic when communicating over long haul networks.
-
-  2. Sending drawing requests to only the screens that they overlap
-     should improve performance.
-
-
-  BB..11..66..  PPiixxmmaappss
-
-  Pixmaps were originally expected to be handled entirely in the front-
-  end X server; however, it was found that this overly complicated the
-  rendering code and would have required sending potentially large
-  images to each back server that required them when copying from pixmap
-  to screen.  Thus, pixmap state is mirrored in the back-end server just
-  as it is with regular window state.  With this implementation, the
-  same rendering code that draws to windows can be used to draw to
-  pixmaps on the back-end server, and no large image transfers are
-  required to copy from pixmap to window.
-
-
-
-  BB..22..  PPhhaassee IIII
-
-  The second phase of development concentrates on performance
-  optimizations.  These optimizations are documented here, with x11perf
-  data to show how the optimizations improve performance.
-
-
-  All benchmarks were performed by running Xdmx on a dual processor
-  1.4GHz AMD Athlon machine with 1GB of RAM connecting over 100baseT to
-  two single-processor 1GHz Pentium III machines with 256MB of RAM and
-  ATI Rage 128 (RF) video cards.  The front end was running Linux
-  2.4.20-pre1-ac1 and the back ends were running Linux 2.4.7-10 and
-  version 4.2.99.1 of XFree86 pulled from the XFree86 CVS repository on
-  August 7, 2002.  All systems were running Red Hat Linux 7.2.
-
-
-  BB..22..11..  MMoovviinngg ffrroomm XXFFrreeee8866 44..11..9999..11 ttoo 44..22..00..00
-
-  For phase II, the working source tree was moved to the branch tagged
-  with dmx-1-0-branch and was updated from version 4.1.99.1 (20 August
-  2001) of the XFree86 sources to version 4.2.0.0 (18 January 2002).
-  After this update, the following tests were noted to be more than 10%
-  faster:
-
-  1.13   Fill 300x300 opaque stippled trapezoid (161x145 stipple)
-  1.16   Fill 1x1 tiled trapezoid (161x145 tile)
-  1.13   Fill 10x10 tiled trapezoid (161x145 tile)
-  1.17   Fill 100x100 tiled trapezoid (161x145 tile)
-  1.16   Fill 1x1 tiled trapezoid (216x208 tile)
-  1.20   Fill 10x10 tiled trapezoid (216x208 tile)
-  1.15   Fill 100x100 tiled trapezoid (216x208 tile)
-  1.37   Circulate Unmapped window (200 kids)
-
-
-
-  And the following tests were noted to be more than 10% slower:
-
-  0.88   Unmap window via parent (25 kids)
-  0.75   Circulate Unmapped window (4 kids)
-  0.79   Circulate Unmapped window (16 kids)
-  0.80   Circulate Unmapped window (25 kids)
-  0.82   Circulate Unmapped window (50 kids)
-  0.85   Circulate Unmapped window (75 kids)
-
-
-
-  These changes were not caused by any changes in the DMX system, and
-  may point to changes in the XFree86 tree or to tests that have more
-  "jitter" than most other x11perf tests.
-
-
-  BB..22..22..  GGlloobbaall cchhaannggeess
-
-  During the development of the Phase II DMX server, several global
-  changes were made.  These changes were also compared with the Phase I
-  server.  The following tests were noted to be more than 10% faster:
-
-
-
-  1.13   Fill 300x300 opaque stippled trapezoid (161x145 stipple)
-  1.15   Fill 1x1 tiled trapezoid (161x145 tile)
-  1.13   Fill 10x10 tiled trapezoid (161x145 tile)
-  1.17   Fill 100x100 tiled trapezoid (161x145 tile)
-  1.16   Fill 1x1 tiled trapezoid (216x208 tile)
-  1.19   Fill 10x10 tiled trapezoid (216x208 tile)
-  1.15   Fill 100x100 tiled trapezoid (216x208 tile)
-  1.15   Circulate Unmapped window (4 kids)
-
-
-
-  The following tests were noted to be more than 10% slower:
-
-  0.69   Scroll 10x10 pixels
-  0.68   Scroll 100x100 pixels
-  0.68   Copy 10x10 from window to window
-  0.68   Copy 100x100 from window to window
-  0.76   Circulate Unmapped window (75 kids)
-  0.83   Circulate Unmapped window (100 kids)
-
-
-
-  For the remainder of this analysis, the baseline of comparison will be
-  the Phase II deliverable with all optimizations disabled (unless
-  otherwise noted).  This will highlight how the optimizations in
-  isolation impact performance.
-
-
-  BB..22..33..  XXSSyynncc(()) BBaattcchhiinngg
-
-  During the Phase I implementation, XSync() was called after every
-  protocol request made by the DMX server.  This provided the DMX server
-  with an interactive feel, but defeated X11's protocol buffering system
-  and introduced round-trip wire latency into every operation.  During
-  Phase II, DMX was changed so that protocol requests are no longer
-  followed by calls to XSync().  Instead, the need for an XSync() is
-  noted, and XSync() calls are only made every 100mS or when the DMX
-  server specifically needs to make a call to guarantee interactivity.
-  With this new system, X11 buffers protocol as much as possible during
-  a 100mS interval, and many unnecessary XSync() calls are avoided.
-
-
-  Out of more than 300 x11perf tests, 8 tests became more than 100 times
-  faster, with 68 more than 50X faster, 114 more than 10X faster, and
-  181 more than 2X faster.  See table below for summary.
-
-
-  The following tests were noted to be more than 10% slower with XSync()
-  batching on:
-
-  0.88   500x500 tiled rectangle (161x145 tile)
-  0.89   Copy 500x500 from window to window
-
-
-
-  BB..22..44..  OOffffssccrreeeenn OOppttiimmiizzaattiioonn
-
-  Windows span one or more of the back-end servers' screens; however,
-  during Phase I development, windows were created on every back-end
-  server and every rendering request was sent to every window regardless
-  of whether or not that window was visible.  With the offscreen
-  optimization, the DMX server tracks when a window is completely off of
-  a back-end server's screen and, in that case, it does not send
-  rendering requests to those back-end windows.  This optimization saves
-  bandwidth between the front and back-end servers, and it reduces the
-  number of XSync() calls.  The performance tests were run on a DMX
-  system with only two back-end servers.  Greater performance gains will
-  be had as the number of back-end servers increases.
-
-
-  Out of more than 300 x11perf tests, 3 tests were at least twice as
-  fast, and 146 tests were at least 10% faster.  Two tests were more
-  than 10% slower with the offscreen optimization:
-
-  0.88   Hide/expose window via popup (4 kids)
-  0.89   Resize unmapped window (75 kids)
-
-
-
-  BB..22..55..  LLaazzyy WWiinnddooww CCrreeaattiioonn OOppttiimmiizzaattiioonn
-
-  As mentioned above, during Phase I, windows were created on every
-  back-end server even if they were not visible on that back-end.  With
-  the lazy window creation optimization, the DMX server does not create
-  windows on a back-end server until they are either visible or they
-  become the parents of a visible window.  This optimization builds on
-  the offscreen optimization (described above) and requires it to be
-  enabled.
-
-
-  The lazy window creation optimization works by creating the window
-  data structures in the front-end server when a client creates a
-  window, but delays creation of the window on the back-end server(s).
-  A private window structure in the DMX server saves the relevant window
-  data and tracks changes to the window's attributes and stacking order
-  for later use.  The only times a window is created on a back-end
-  server are (1) when it is mapped and is at least partially overlapping
-  the back-end server's screen (tracked by the offscreen optimization),
-  or (2) when the window becomes the parent of a previously visible
-  window.  The first case occurs when a window is mapped or when a
-  visible window is copied, moved or resized and now overlaps the back-
-  end server's screen.  The second case occurs when starting a window
-  manager after having created windows to which the window manager needs
-  to add decorations.
-
-
-  When either case occurs, a window on the back-end server is created
-  using the data saved in the DMX server's window private data
-  structure.  The stacking order is then adjusted to correctly place the
-  window on the back-end and lastly the window is mapped.  From this
-  time forward, the window is handled exactly as if the window had been
-  created at the time of the client's request.
-
-
-  Note that when a window is no longer visible on a back-end server's
-  screen (e.g., it is moved offscreen), the window is not destroyed;
-  rather, it is kept and reused later if the window once again becomes
-  visible on the back-end server's screen.  Originally with this
-  optimization, destroying windows was implemented but was later
-  rejected because it increased bandwidth when windows were opaquely
-  moved or resized, which is common in many window managers.
-
-
-
-  The performance tests were run on a DMX system with only two back-end
-  servers.  Greater performance gains will be had as the number of back-
-  end servers increases.
-
-
-  This optimization improved the following x11perf tests by more than
-  10%:
-
-  1.10   500x500 rectangle outline
-  1.12   Fill 100x100 stippled trapezoid (161x145 stipple)
-  1.20   Circulate Unmapped window (50 kids)
-  1.19   Circulate Unmapped window (75 kids)
-
-
-
-  BB..22..66..  SSuubbddiivviiddiinngg RReennddeerriinngg PPrriimmiittiivveess
-
-  X11 imaging requests transfer significant data between the client and
-  the X server.  During Phase I, the DMX server would then transfer the
-  image data to each back-end server.  Even with the offscreen
-  optimization (above), these requests still required transferring
-  significant data to each back-end server that contained a visible
-  portion of the window.  For example, if the client uses XPutImage() to
-  copy an image to a window that overlaps the entire DMX screen, then
-  the entire image is copied by the DMX server to every back-end server.
-
-
-  To reduce the amount of data transferred between the DMX server and
-  the back-end servers when XPutImage() is called, the image data is
-  subdivided and only the data that will be visible on a back-end
-  server's screen is sent to that back-end server.  Xinerama already
-  implements a subdivision algorithm for XGetImage() and no further
-  optimization was needed.
-
-
-  Other rendering primitives were analyzed, but the time required to
-  subdivide these primitives was a significant proportion of the time
-  required to send the entire rendering request to the back-end server,
-  so this optimization was rejected for the other rendering primitives.
-
-
-  Again, the performance tests were run on a DMX system with only two
-  back-end servers.  Greater performance gains will be had as the number
-  of back-end servers increases.
-
-
-  This optimization improved the following x11perf tests by more than
-  10%:
-
-  1.12   Fill 100x100 stippled trapezoid (161x145 stipple)
-  1.26   PutImage 10x10 square
-  1.83   PutImage 100x100 square
-  1.91   PutImage 500x500 square
-  1.40   PutImage XY 10x10 square
-  1.48   PutImage XY 100x100 square
-  1.50   PutImage XY 500x500 square
-  1.45   Circulate Unmapped window (75 kids)
-  1.74   Circulate Unmapped window (100 kids)
-
-
-
-  The following test was noted to be more than 10% slower with this
-  optimization:
-
-  0.88   10-pixel fill chord partial circle
-
-
-
-  BB..22..77..  SSuummmmaarryy ooff xx1111ppeerrff DDaattaa
-
-  With all of the optimizations on, 53 x11perf tests are more than 100X
-  faster than the unoptimized Phase II deliverable, with 69 more than
-  50X faster, 73 more than 10X faster, and 199 more than twice as fast.
-  No tests were more than 10% slower than the unoptimized Phase II
-  deliverable.  (Compared with the Phase I deliverable, only Circulate
-  Unmapped window (100 kids) was more than 10% slower than the Phase II
-  deliverable.  As noted above, this test seems to have wider
-  variability than other x11perf tests.)
-
-
-  The following table summarizes relative x11perf test changes for all
-  optimizations individually and collectively.  Note that some of the
-  optimizations have a synergistic effect when used together.
-
-
-
-  1: XSync() batching only
-  2: Off screen optimizations only
-  3: Window optimizations only
-  4: Subdivprims only
-  5: All optimizations
-
-      1     2    3    4      5 Operation
-  ------ ---- ---- ---- ------ ---------
-    2.14 1.85 1.00 1.00   4.13 Dot
-    1.67 1.80 1.00 1.00   3.31 1x1 rectangle
-    2.38 1.43 1.00 1.00   2.44 10x10 rectangle
-    1.00 1.00 0.92 0.98   1.00 100x100 rectangle
-    1.00 1.00 1.00 1.00   1.00 500x500 rectangle
-    1.83 1.85 1.05 1.06   3.54 1x1 stippled rectangle (8x8 stipple)
-    2.43 1.43 1.00 1.00   2.41 10x10 stippled rectangle (8x8 stipple)
-    0.98 1.00 1.00 1.00   1.00 100x100 stippled rectangle (8x8 stipple)
-    1.00 1.00 1.00 1.00   0.98 500x500 stippled rectangle (8x8 stipple)
-    1.75 1.75 1.00 1.00   3.40 1x1 opaque stippled rectangle (8x8 stipple)
-    2.38 1.42 1.00 1.00   2.34 10x10 opaque stippled rectangle (8x8 stipple)
-    1.00 1.00 0.97 0.97   1.00 100x100 opaque stippled rectangle (8x8 stipple)
-    1.00 1.00 1.00 1.00   0.99 500x500 opaque stippled rectangle (8x8 stipple)
-    1.82 1.82 1.04 1.04   3.56 1x1 tiled rectangle (4x4 tile)
-    2.33 1.42 1.00 1.00   2.37 10x10 tiled rectangle (4x4 tile)
-    1.00 0.92 1.00 1.00   1.00 100x100 tiled rectangle (4x4 tile)
-    1.00 1.00 1.00 1.00   1.00 500x500 tiled rectangle (4x4 tile)
-    1.94 1.62 1.00 1.00   3.66 1x1 stippled rectangle (17x15 stipple)
-    1.74 1.28 1.00 1.00   1.73 10x10 stippled rectangle (17x15 stipple)
-    1.00 1.00 1.00 0.89   0.98 100x100 stippled rectangle (17x15 stipple)
-    1.00 1.00 1.00 1.00   0.98 500x500 stippled rectangle (17x15 stipple)
-    1.94 1.62 1.00 1.00   3.67 1x1 opaque stippled rectangle (17x15 stipple)
-    1.69 1.26 1.00 1.00   1.66 10x10 opaque stippled rectangle (17x15 stipple)
-    1.00 0.95 1.00 1.00   1.00 100x100 opaque stippled rectangle (17x15 stipple)
-    1.00 1.00 1.00 1.00   0.97 500x500 opaque stippled rectangle (17x15 stipple)
-    1.93 1.61 0.99 0.99   3.69 1x1 tiled rectangle (17x15 tile)
-    1.73 1.27 1.00 1.00   1.72 10x10 tiled rectangle (17x15 tile)
-    1.00 1.00 1.00 1.00   0.98 100x100 tiled rectangle (17x15 tile)
-    1.00 1.00 0.97 0.97   1.00 500x500 tiled rectangle (17x15 tile)
-    1.95 1.63 1.00 1.00   3.83 1x1 stippled rectangle (161x145 stipple)
-    1.80 1.30 1.00 1.00   1.83 10x10 stippled rectangle (161x145 stipple)
-    0.97 1.00 1.00 1.00   1.01 100x100 stippled rectangle (161x145 stipple)
-    1.00 1.00 1.00 1.00   0.98 500x500 stippled rectangle (161x145 stipple)
-    1.95 1.63 1.00 1.00   3.56 1x1 opaque stippled rectangle (161x145 stipple)
-    1.65 1.25 1.00 1.00   1.68 10x10 opaque stippled rectangle (161x145 stipple)
-    1.00 1.00 1.00 1.00   1.01 100x100 opaque stippled rectangle (161x145...
-    1.00 1.00 1.00 1.00   0.97 500x500 opaque stippled rectangle (161x145...
-    1.95 1.63 0.98 0.99   3.80 1x1 tiled rectangle (161x145 tile)
-    1.67 1.26 1.00 1.00   1.67 10x10 tiled rectangle (161x145 tile)
-    1.13 1.14 1.14 1.14   1.14 100x100 tiled rectangle (161x145 tile)
-    0.88 1.00 1.00 1.00   0.99 500x500 tiled rectangle (161x145 tile)
-    1.93 1.63 1.00 1.00   3.53 1x1 tiled rectangle (216x208 tile)
-    1.69 1.26 1.00 1.00   1.66 10x10 tiled rectangle (216x208 tile)
-    1.00 1.00 1.00 1.00   1.00 100x100 tiled rectangle (216x208 tile)
-    1.00 1.00 1.00 1.00   1.00 500x500 tiled rectangle (216x208 tile)
-    1.82 1.70 1.00 1.00   3.38 1-pixel line segment
-    2.07 1.56 0.90 1.00   3.31 10-pixel line segment
-    1.29 1.10 1.00 1.00   1.27 100-pixel line segment
-    1.05 1.06 1.03 1.03   1.09 500-pixel line segment
-    1.30 1.13 1.00 1.00   1.29 100-pixel line segment (1 kid)
-    1.32 1.15 1.00 1.00   1.32 100-pixel line segment (2 kids)
-    1.33 1.16 1.00 1.00   1.33 100-pixel line segment (3 kids)
-    1.92 1.64 1.00 1.00   3.73 10-pixel dashed segment
-    1.34 1.16 1.00 1.00   1.34 100-pixel dashed segment
-    1.24 1.11 0.99 0.97   1.23 100-pixel double-dashed segment
-    1.72 1.77 1.00 1.00   3.25 10-pixel horizontal line segment
-    1.83 1.66 1.01 1.00   3.54 100-pixel horizontal line segment
-    1.86 1.30 1.00 1.00   1.84 500-pixel horizontal line segment
-    2.11 1.52 1.00 0.99   3.02 10-pixel vertical line segment
-    1.21 1.10 1.00 1.00   1.20 100-pixel vertical line segment
-    1.03 1.03 1.00 1.00   1.02 500-pixel vertical line segment
-    4.42 1.68 1.00 1.01   4.64 10x1 wide horizontal line segment
-    1.83 1.31 1.00 1.00   1.83 100x10 wide horizontal line segment
-    1.07 1.00 0.96 1.00   1.07 500x50 wide horizontal line segment
-    4.10 1.67 1.00 1.00   4.62 10x1 wide vertical line segment
-    1.50 1.24 1.06 1.06   1.48 100x10 wide vertical line segment
-    1.06 1.03 1.00 1.00   1.05 500x50 wide vertical line segment
-    2.54 1.61 1.00 1.00   3.61 1-pixel line
-    2.71 1.48 1.00 1.00   2.67 10-pixel line
-    1.19 1.09 1.00 1.00   1.19 100-pixel line
-    1.04 1.02 1.00 1.00   1.03 500-pixel line
-    2.68 1.51 0.98 1.00   3.17 10-pixel dashed line
-    1.23 1.11 0.99 0.99   1.23 100-pixel dashed line
-    1.15 1.08 1.00 1.00   1.15 100-pixel double-dashed line
-    2.27 1.39 1.00 1.00   2.23 10x1 wide line
-    1.20 1.09 1.00 1.00   1.20 100x10 wide line
-    1.04 1.02 1.00 1.00   1.04 500x50 wide line
-    1.52 1.45 1.00 1.00   1.52 100x10 wide dashed line
-    1.54 1.47 1.00 1.00   1.54 100x10 wide double-dashed line
-    1.97 1.30 0.96 0.95   1.95 10x10 rectangle outline
-    1.44 1.27 1.00 1.00   1.43 100x100 rectangle outline
-    3.22 2.16 1.10 1.09   3.61 500x500 rectangle outline
-    1.95 1.34 1.00 1.00   1.90 10x10 wide rectangle outline
-    1.14 1.14 1.00 1.00   1.13 100x100 wide rectangle outline
-    1.00 1.00 1.00 1.00   1.00 500x500 wide rectangle outline
-    1.57 1.72 1.00 1.00   3.03 1-pixel circle
-    1.96 1.35 1.00 1.00   1.92 10-pixel circle
-    1.21 1.07 0.86 0.97   1.20 100-pixel circle
-    1.08 1.04 1.00 1.00   1.08 500-pixel circle
-    1.39 1.19 1.03 1.03   1.38 100-pixel dashed circle
-    1.21 1.11 1.00 1.00   1.23 100-pixel double-dashed circle
-    1.59 1.28 1.00 1.00   1.58 10-pixel wide circle
-    1.22 1.12 0.99 1.00   1.22 100-pixel wide circle
-    1.06 1.04 1.00 1.00   1.05 500-pixel wide circle
-    1.87 1.84 1.00 1.00   1.85 100-pixel wide dashed circle
-    1.90 1.93 1.01 1.01   1.90 100-pixel wide double-dashed circle
-    2.13 1.43 1.00 1.00   2.32 10-pixel partial circle
-    1.42 1.18 1.00 1.00   1.42 100-pixel partial circle
-    1.92 1.85 1.01 1.01   1.89 10-pixel wide partial circle
-    1.73 1.67 1.00 1.00   1.73 100-pixel wide partial circle
-    1.36 1.95 1.00 1.00   2.64 1-pixel solid circle
-    2.02 1.37 1.00 1.00   2.03 10-pixel solid circle
-    1.19 1.09 1.00 1.00   1.19 100-pixel solid circle
-    1.02 0.99 1.00 1.00   1.01 500-pixel solid circle
-    1.74 1.28 1.00 0.88   1.73 10-pixel fill chord partial circle
-    1.31 1.13 1.00 1.00   1.31 100-pixel fill chord partial circle
-    1.67 1.31 1.03 1.03   1.72 10-pixel fill slice partial circle
-    1.30 1.13 1.00 1.00   1.28 100-pixel fill slice partial circle
-    2.45 1.49 1.01 1.00   2.71 10-pixel ellipse
-    1.22 1.10 1.00 1.00   1.22 100-pixel ellipse
-    1.09 1.04 1.00 1.00   1.09 500-pixel ellipse
-    1.90 1.28 1.00 1.00   1.89 100-pixel dashed ellipse
-    1.62 1.24 0.96 0.97   1.61 100-pixel double-dashed ellipse
-    2.43 1.50 1.00 1.00   2.42 10-pixel wide ellipse
-    1.61 1.28 1.03 1.03   1.60 100-pixel wide ellipse
-    1.08 1.05 1.00 1.00   1.08 500-pixel wide ellipse
-    1.93 1.88 1.00 1.00   1.88 100-pixel wide dashed ellipse
-    1.94 1.89 1.01 1.00   1.94 100-pixel wide double-dashed ellipse
-    2.31 1.48 1.00 1.00   2.67 10-pixel partial ellipse
-    1.38 1.17 1.00 1.00   1.38 100-pixel partial ellipse
-    2.00 1.85 0.98 0.97   1.98 10-pixel wide partial ellipse
-    1.89 1.86 1.00 1.00   1.89 100-pixel wide partial ellipse
-    3.49 1.60 1.00 1.00   3.65 10-pixel filled ellipse
-    1.67 1.26 1.00 1.00   1.67 100-pixel filled ellipse
-    1.06 1.04 1.00 1.00   1.06 500-pixel filled ellipse
-    2.38 1.43 1.01 1.00   2.32 10-pixel fill chord partial ellipse
-    2.06 1.30 1.00 1.00   2.05 100-pixel fill chord partial ellipse
-    2.27 1.41 1.00 1.00   2.27 10-pixel fill slice partial ellipse
-    1.98 1.33 1.00 0.97   1.97 100-pixel fill slice partial ellipse
-   57.46 1.99 1.01 1.00 114.92 Fill 1x1 equivalent triangle
-   56.94 1.98 1.01 1.00  73.89 Fill 10x10 equivalent triangle
-    6.07 1.75 1.00 1.00   6.07 Fill 100x100 equivalent triangle
-   51.12 1.98 1.00 1.00 102.81 Fill 1x1 trapezoid
-   51.42 1.82 1.01 1.00  94.89 Fill 10x10 trapezoid
-    6.47 1.80 1.00 1.00   6.44 Fill 100x100 trapezoid
-    1.56 1.28 1.00 0.99   1.56 Fill 300x300 trapezoid
-   51.27 1.97 0.96 0.97 102.54 Fill 1x1 stippled trapezoid (8x8 stipple)
-   51.73 2.00 1.02 1.02  67.92 Fill 10x10 stippled trapezoid (8x8 stipple)
-    5.36 1.72 1.00 1.00   5.36 Fill 100x100 stippled trapezoid (8x8 stipple)
-    1.54 1.26 1.00 1.00   1.59 Fill 300x300 stippled trapezoid (8x8 stipple)
-   51.41 1.94 1.01 1.00 102.82 Fill 1x1 opaque stippled trapezoid (8x8 stipple)
-   50.71 1.95 0.99 1.00  65.44 Fill 10x10 opaque stippled trapezoid (8x8...
-    5.33 1.73 1.00 1.00   5.36 Fill 100x100 opaque stippled trapezoid (8x8...
-    1.58 1.25 1.00 1.00   1.58 Fill 300x300 opaque stippled trapezoid (8x8...
-   51.56 1.96 0.99 0.90 103.68 Fill 1x1 tiled trapezoid (4x4 tile)
-   51.59 1.99 1.01 1.01  62.25 Fill 10x10 tiled trapezoid (4x4 tile)
-    5.38 1.72 1.00 1.00   5.38 Fill 100x100 tiled trapezoid (4x4 tile)
-    1.54 1.25 1.00 0.99   1.58 Fill 300x300 tiled trapezoid (4x4 tile)
-   51.70 1.98 1.01 1.01 103.98 Fill 1x1 stippled trapezoid (17x15 stipple)
-   44.86 1.97 1.00 1.00  44.86 Fill 10x10 stippled trapezoid (17x15 stipple)
-    2.74 1.56 1.00 1.00   2.73 Fill 100x100 stippled trapezoid (17x15 stipple)
-    1.29 1.14 1.00 1.00   1.27 Fill 300x300 stippled trapezoid (17x15 stipple)
-   51.41 1.96 0.96 0.95 103.39 Fill 1x1 opaque stippled trapezoid (17x15...
-   45.14 1.96 1.01 1.00  45.14 Fill 10x10 opaque stippled trapezoid (17x15...
-    2.68 1.56 1.00 1.00   2.68 Fill 100x100 opaque stippled trapezoid (17x15...
-    1.26 1.10 1.00 1.00   1.28 Fill 300x300 opaque stippled trapezoid (17x15...
-   51.13 1.97 1.00 0.99 103.39 Fill 1x1 tiled trapezoid (17x15 tile)
-   47.58 1.96 1.00 1.00  47.86 Fill 10x10 tiled trapezoid (17x15 tile)
-    2.74 1.56 1.00 1.00   2.74 Fill 100x100 tiled trapezoid (17x15 tile)
-    1.29 1.14 1.00 1.00   1.28 Fill 300x300 tiled trapezoid (17x15 tile)
-   51.13 1.97 0.99 0.97 103.39 Fill 1x1 stippled trapezoid (161x145 stipple)
-   45.14 1.97 1.00 1.00  44.29 Fill 10x10 stippled trapezoid (161x145 stipple)
-    3.02 1.77 1.12 1.12   3.38 Fill 100x100 stippled trapezoid (161x145 stipple)
-    1.31 1.13 1.00 1.00   1.30 Fill 300x300 stippled trapezoid (161x145 stipple)
-   51.27 1.97 1.00 1.00 103.10 Fill 1x1 opaque stippled trapezoid (161x145...
-   45.01 1.97 1.00 1.00  45.01 Fill 10x10 opaque stippled trapezoid (161x145...
-    2.67 1.56 1.00 1.00   2.69 Fill 100x100 opaque stippled trapezoid (161x145..
-    1.29 1.13 1.00 1.01   1.27 Fill 300x300 opaque stippled trapezoid (161x145..
-   51.41 1.96 1.00 0.99 103.39 Fill 1x1 tiled trapezoid (161x145 tile)
-   45.01 1.96 0.98 1.00  45.01 Fill 10x10 tiled trapezoid (161x145 tile)
-    2.62 1.36 1.00 1.00   2.69 Fill 100x100 tiled trapezoid (161x145 tile)
-    1.27 1.13 1.00 1.00   1.22 Fill 300x300 tiled trapezoid (161x145 tile)
-   51.13 1.98 1.00 1.00 103.39 Fill 1x1 tiled trapezoid (216x208 tile)
-   45.14 1.97 1.01 0.99  45.14 Fill 10x10 tiled trapezoid (216x208 tile)
-    2.62 1.55 1.00 1.00   2.71 Fill 100x100 tiled trapezoid (216x208 tile)
-    1.28 1.13 1.00 1.00   1.20 Fill 300x300 tiled trapezoid (216x208 tile)
-   50.71 1.95 1.00 1.00  54.70 Fill 10x10 equivalent complex polygon
-    5.51 1.71 0.96 0.98   5.47 Fill 100x100 equivalent complex polygons
-    8.39 1.97 1.00 1.00  16.75 Fill 10x10 64-gon (Convex)
-    8.38 1.83 1.00 1.00   8.43 Fill 100x100 64-gon (Convex)
-    8.50 1.96 1.00 1.00  16.64 Fill 10x10 64-gon (Complex)
-    8.26 1.83 1.00 1.00   8.35 Fill 100x100 64-gon (Complex)
-   14.09 1.87 1.00 1.00  14.05 Char in 80-char line (6x13)
-   11.91 1.87 1.00 1.00  11.95 Char in 70-char line (8x13)
-   11.16 1.85 1.01 1.00  11.10 Char in 60-char line (9x15)
-   10.09 1.78 1.00 1.00  10.09 Char16 in 40-char line (k14)
-    6.15 1.75 1.00 1.00   6.31 Char16 in 23-char line (k24)
-   11.92 1.90 1.03 1.03  11.88 Char in 80-char line (TR 10)
-    8.18 1.78 1.00 0.99   8.17 Char in 30-char line (TR 24)
-   42.83 1.44 1.01 1.00  42.11 Char in 20/40/20 line (6x13, TR 10)
-   27.45 1.43 1.01 1.01  27.45 Char16 in 7/14/7 line (k14, k24)
-   12.13 1.85 1.00 1.00  12.05 Char in 80-char image line (6x13)
-   10.00 1.84 1.00 1.00  10.00 Char in 70-char image line (8x13)
-    9.18 1.83 1.00 1.00   9.12 Char in 60-char image line (9x15)
-    9.66 1.82 0.98 0.95   9.66 Char16 in 40-char image line (k14)
-    5.82 1.72 1.00 1.00   5.99 Char16 in 23-char image line (k24)
-    8.70 1.80 1.00 1.00   8.65 Char in 80-char image line (TR 10)
-    4.67 1.66 1.00 1.00   4.67 Char in 30-char image line (TR 24)
-   84.43 1.47 1.00 1.00 124.18 Scroll 10x10 pixels
-    3.73 1.50 1.00 0.98   3.73 Scroll 100x100 pixels
-    1.00 1.00 1.00 1.00   1.00 Scroll 500x500 pixels
-   84.43 1.51 1.00 1.00 134.02 Copy 10x10 from window to window
-    3.62 1.51 0.98 0.98   3.62 Copy 100x100 from window to window
-    0.89 1.00 1.00 1.00   1.00 Copy 500x500 from window to window
-   57.06 1.99 1.00 1.00  88.64 Copy 10x10 from pixmap to window
-    2.49 2.00 1.00 1.00   2.48 Copy 100x100 from pixmap to window
-    1.00 0.91 1.00 1.00   0.98 Copy 500x500 from pixmap to window
-    2.04 1.01 1.00 1.00   2.03 Copy 10x10 from window to pixmap
-    1.05 1.00 1.00 1.00   1.05 Copy 100x100 from window to pixmap
-    1.00 1.00 0.93 1.00   1.04 Copy 500x500 from window to pixmap
-   58.52 1.03 1.03 1.02  57.95 Copy 10x10 from pixmap to pixmap
-    2.40 1.00 1.00 1.00   2.45 Copy 100x100 from pixmap to pixmap
-    1.00 1.00 1.00 1.00   1.00 Copy 500x500 from pixmap to pixmap
-   51.57 1.92 1.00 1.00  85.75 Copy 10x10 1-bit deep plane
-    6.37 1.75 1.01 1.01   6.37 Copy 100x100 1-bit deep plane
-    1.26 1.11 1.00 1.00   1.24 Copy 500x500 1-bit deep plane
-    4.23 1.63 0.98 0.97   4.38 Copy 10x10 n-bit deep plane
-    1.04 1.02 1.00 1.00   1.04 Copy 100x100 n-bit deep plane
-    1.00 1.00 1.00 1.00   1.00 Copy 500x500 n-bit deep plane
-    6.45 1.98 1.00 1.26  12.80 PutImage 10x10 square
-    1.10 1.87 1.00 1.83   2.11 PutImage 100x100 square
-    1.02 1.93 1.00 1.91   1.91 PutImage 500x500 square
-    4.17 1.78 1.00 1.40   7.18 PutImage XY 10x10 square
-    1.27 1.49 0.97 1.48   2.10 PutImage XY 100x100 square
-    1.00 1.50 1.00 1.50   1.52 PutImage XY 500x500 square
-    1.07 1.01 1.00 1.00   1.06 GetImage 10x10 square
-    1.01 1.00 1.00 1.00   1.01 GetImage 100x100 square
-    1.00 1.00 1.00 1.00   1.00 GetImage 500x500 square
-    1.56 1.00 0.99 0.97   1.56 GetImage XY 10x10 square
-    1.02 1.00 1.00 1.00   1.02 GetImage XY 100x100 square
-    1.00 1.00 1.00 1.00   1.00 GetImage XY 500x500 square
-    1.00 1.00 1.01 0.98   0.95 X protocol NoOperation
-    1.02 1.03 1.04 1.03   1.00 QueryPointer
-    1.03 1.02 1.04 1.03   1.00 GetProperty
-  100.41 1.51 1.00 1.00 198.76 Change graphics context
-   45.81 1.00 0.99 0.97  57.10 Create and map subwindows (4 kids)
-   78.45 1.01 1.02 1.02  63.07 Create and map subwindows (16 kids)
-   73.91 1.01 1.00 1.00  56.37 Create and map subwindows (25 kids)
-   73.22 1.00 1.00 1.00  49.07 Create and map subwindows (50 kids)
-   72.36 1.01 0.99 1.00  32.14 Create and map subwindows (75 kids)
-   70.34 1.00 1.00 1.00  30.12 Create and map subwindows (100 kids)
-   55.00 1.00 1.00 0.99  23.75 Create and map subwindows (200 kids)
-   55.30 1.01 1.00 1.00 141.03 Create unmapped window (4 kids)
-   55.38 1.01 1.01 1.00 163.25 Create unmapped window (16 kids)
-   54.75 0.96 1.00 0.99 166.95 Create unmapped window (25 kids)
-   54.83 1.00 1.00 0.99 178.81 Create unmapped window (50 kids)
-   55.38 1.01 1.01 1.00 181.20 Create unmapped window (75 kids)
-   55.38 1.01 1.01 1.00 181.20 Create unmapped window (100 kids)
-   54.87 1.01 1.01 1.00 182.05 Create unmapped window (200 kids)
-   28.13 1.00 1.00 1.00  30.75 Map window via parent (4 kids)
-   36.14 1.01 1.01 1.01  32.58 Map window via parent (16 kids)
-   26.13 1.00 0.98 0.95  29.85 Map window via parent (25 kids)
-   40.07 1.00 1.01 1.00  27.57 Map window via parent (50 kids)
-   23.26 0.99 1.00 1.00  18.23 Map window via parent (75 kids)
-   22.91 0.99 1.00 0.99  16.52 Map window via parent (100 kids)
-   27.79 1.00 1.00 0.99  12.50 Map window via parent (200 kids)
-   22.35 1.00 1.00 1.00  56.19 Unmap window via parent (4 kids)
-    9.57 1.00 0.99 1.00  89.78 Unmap window via parent (16 kids)
-   80.77 1.01 1.00 1.00 103.85 Unmap window via parent (25 kids)
-   96.34 1.00 1.00 1.00 116.06 Unmap window via parent (50 kids)
-   99.72 1.00 1.00 1.00 124.93 Unmap window via parent (75 kids)
-  112.36 1.00 1.00 1.00 125.27 Unmap window via parent (100 kids)
-  105.41 1.00 1.00 0.99 120.00 Unmap window via parent (200 kids)
-   51.29 1.03 1.02 1.02  74.19 Destroy window via parent (4 kids)
-   86.75 0.99 0.99 0.99 116.87 Destroy window via parent (16 kids)
-  106.43 1.01 1.01 1.01 127.49 Destroy window via parent (25 kids)
-  120.34 1.01 1.01 1.00 140.11 Destroy window via parent (50 kids)
-  126.67 1.00 0.99 0.99 145.00 Destroy window via parent (75 kids)
-  126.11 1.01 1.01 1.00 140.56 Destroy window via parent (100 kids)
-  128.57 1.01 1.00 1.00 137.91 Destroy window via parent (200 kids)
-   16.04 0.88 1.00 1.00  20.36 Hide/expose window via popup (4 kids)
-   19.04 1.01 1.00 1.00  23.48 Hide/expose window via popup (16 kids)
-   19.22 1.00 1.00 1.00  20.44 Hide/expose window via popup (25 kids)
-   17.41 1.00 0.91 0.97  17.68 Hide/expose window via popup (50 kids)
-   17.29 1.01 1.00 1.01  17.07 Hide/expose window via popup (75 kids)
-   16.74 1.00 1.00 1.00  16.17 Hide/expose window via popup (100 kids)
-   10.30 1.00 1.00 1.00  10.51 Hide/expose window via popup (200 kids)
-   16.48 1.01 1.00 1.00  26.05 Move window (4 kids)
-   17.01 0.95 1.00 1.00  23.97 Move window (16 kids)
-   16.95 1.00 1.00 1.00  22.90 Move window (25 kids)
-   16.05 1.01 1.00 1.00  21.32 Move window (50 kids)
-   15.58 1.00 0.98 0.98  19.44 Move window (75 kids)
-   14.98 1.02 1.03 1.03  18.17 Move window (100 kids)
-   10.90 1.01 1.01 1.00  12.68 Move window (200 kids)
-   49.42 1.00 1.00 1.00 198.27 Moved unmapped window (4 kids)
-   50.72 0.97 1.00 1.00 193.66 Moved unmapped window (16 kids)
-   50.87 1.00 0.99 1.00 195.09 Moved unmapped window (25 kids)
-   50.72 1.00 1.00 1.00 189.34 Moved unmapped window (50 kids)
-   50.87 1.00 1.00 1.00 191.33 Moved unmapped window (75 kids)
-   50.87 1.00 1.00 0.90 186.71 Moved unmapped window (100 kids)
-   50.87 1.00 1.00 1.00 179.19 Moved unmapped window (200 kids)
-   41.04 1.00 1.00 1.00  56.61 Move window via parent (4 kids)
-   69.81 1.00 1.00 1.00 130.82 Move window via parent (16 kids)
-   95.81 1.00 1.00 1.00 141.92 Move window via parent (25 kids)
-   95.98 1.00 1.00 1.00 149.43 Move window via parent (50 kids)
-   96.59 1.01 1.01 1.00 153.98 Move window via parent (75 kids)
-   97.19 1.00 1.00 1.00 157.30 Move window via parent (100 kids)
-   96.67 1.00 0.99 0.96 159.44 Move window via parent (200 kids)
-   17.75 1.01 1.00 1.00  27.61 Resize window (4 kids)
-   17.94 1.00 1.00 0.99  25.42 Resize window (16 kids)
-   17.92 1.01 1.00 1.00  24.47 Resize window (25 kids)
-   17.24 0.97 1.00 1.00  24.14 Resize window (50 kids)
-   16.81 1.00 1.00 0.99  22.75 Resize window (75 kids)
-   16.08 1.00 1.00 1.00  21.20 Resize window (100 kids)
-   12.92 1.00 0.99 1.00  16.26 Resize window (200 kids)
-   52.94 1.01 1.00 1.00 327.12 Resize unmapped window (4 kids)
-   53.60 1.01 1.01 1.01 333.71 Resize unmapped window (16 kids)
-   52.99 1.00 1.00 1.00 337.29 Resize unmapped window (25 kids)
-   51.98 1.00 1.00 1.00 329.38 Resize unmapped window (50 kids)
-   53.05 0.89 1.00 1.00 322.60 Resize unmapped window (75 kids)
-   53.05 1.00 1.00 1.00 318.08 Resize unmapped window (100 kids)
-   53.11 1.00 1.00 0.99 306.21 Resize unmapped window (200 kids)
-   16.76 1.00 0.96 1.00  19.46 Circulate window (4 kids)
-   17.24 1.00 1.00 0.97  16.24 Circulate window (16 kids)
-   16.30 1.03 1.03 1.03  15.85 Circulate window (25 kids)
-   13.45 1.00 1.00 1.00  14.90 Circulate window (50 kids)
-   12.91 1.00 1.00 1.00  13.06 Circulate window (75 kids)
-   11.30 0.98 1.00 1.00  11.03 Circulate window (100 kids)
-    7.58 1.01 1.01 0.99   7.47 Circulate window (200 kids)
-    1.01 1.01 0.98 1.00   0.95 Circulate Unmapped window (4 kids)
-    1.07 1.07 1.01 1.07   1.02 Circulate Unmapped window (16 kids)
-    1.04 1.09 1.06 1.05   0.97 Circulate Unmapped window (25 kids)
-    1.04 1.23 1.20 1.18   1.05 Circulate Unmapped window (50 kids)
-    1.18 1.53 1.19 1.45   1.24 Circulate Unmapped window (75 kids)
-    1.08 1.02 1.01 1.74   1.01 Circulate Unmapped window (100 kids)
-    1.01 1.12 0.98 0.91   0.97 Circulate Unmapped window (200 kids)
-
-
-
-  BB..22..88..  PPrrooffiilliinngg wwiitthh OOPPrrooffiillee
-
-  OProfile (available from http://oprofile.sourceforge.net/) is a
-  system-wide profiler for Linux systems that uses processor-level
-  counters to collect sampling data.  OProfile can provide information
-  that is similar to that provided by gprof, but without the necessity
-  of recompiling the program with special instrumentation (i.e.,
-  OProfile can collect statistical profiling information about optimized
-  programs).  A test harness was developed to collect OProfile data for
-  each x11perf test individually.
-
-
-  Test runs were performed using the RETIRED_INSNS counter on the AMD
-  Athlon and the CPU_CLK_HALTED counter on the Intel Pentium III (with a
-  test configuration different from the one described above).  We have
-  examined OProfile output and have compared it with gprof output.  This
-  investigation has not produced results that yield performance
-  increases in x11perf numbers.
-
-
-
-  BB..22..99..  XX TTeesstt SSuuiittee
-
-  The X Test Suite was run on the fully optimized DMX server using the
-  configuration described above.  The following failures were noted:
-
-  XListPixmapFormats: Test 1              [1]
-  XChangeWindowAttributes: Test 32        [1]
-  XCreateWindow: Test 30                  [1]
-  XFreeColors: Test 4                     [3]
-  XCopyArea: Test 13, 17, 21, 25, 30      [2]
-  XCopyPlane: Test 11, 15, 27, 31         [2]
-  XSetFontPath: Test 4                    [1]
-  XChangeKeyboardControl: Test 9, 10      [1]
-
-  [1] Previously documented errors expected from the Xinerama
-      implementation (see Phase I discussion).
-  [2] Newly noted errors that have been verified as expected
-      behavior of the Xinerama implementation.
-  [3] Newly noted error that has been verified as a Xinerama
-      implementation bug.
-
-
-
-  BB..33..  PPhhaassee IIIIII
-
-  During the third phase of development, support was provided for the
-  following extensions: SHAPE, RENDER, XKEYBOARD, XInput.
-
-
-  BB..33..11..  SSHHAAPPEE
-
-  The SHAPE extension is supported.  Test applications (e.g., xeyes and
-  oclock) and window managers that make use of the SHAPE extension will
-  work as expected.
-
-
-  BB..33..22..  RREENNDDEERR
-
-  The RENDER extension is supported.  The version included in the DMX
-  CVS tree is version 0.2, and this version is fully supported by Xdmx.
-  Applications using only version 0.2 functions will work correctly;
-  however, some apps that make use of functions from later versions do
-  not properly check the extension's major/minor version numbers.  These
-  apps will fail with a Bad Implementation error when using post-version
-  0.2 functions.  This is expected behavior.  When the DMX CVS tree is
-  updated to include newer versions of RENDER, support for these newer
-  functions will be added to the DMX X server.
-
-
-  BB..33..33..  XXKKEEYYBBOOAARRDD
-
-  The XKEYBOARD extension is supported.  If present on the back-end X
-  servers, the XKEYBOARD extension will be used to obtain information
-  about the type of the keyboard for initialization.  Otherwise, the
-  keyboard will be initialized using defaults.  Note that this departs
-  from older behavior: when Xdmx is compiled without XKEYBOARD support,
-  the map from the back-end X server will be preserved.  With XKEYBOARD
-  support, the map is not preserved because better information and
-  control of the keyboard is available.
-
-
-  BB..33..44..  XXIInnppuutt
-
-  The XInput extension is supported.  Any device can be used as a core
-  device and be used as an XInput extension device, with the exception
-  of core devices on the back-end servers.  This limitation is present
-  because cursor handling on the back-end requires that the back-end
-  cursor sometimes track the Xdmx core cursor -- behavior that is
-  incompatible with using the back-end pointer as a non-core device.
-
-
-  Currently, back-end extension devices are not available as Xdmx
-  extension devices, but this limitation should be removed in the
-  future.
-
-
-  To demonstrate the XInput extension, and to provide more examples for
-  low-level input device driver writers, USB device drivers have been
-  written for mice (usb-mou), keyboards (usb-kbd), and non-mouse/non-
-  keyboard USB devices (usb-oth).  Please see the man page for
-  information on Linux kernel drivers that are required for using these
-  Xdmx drivers.
-
-
-  BB..33..55..  DDPPMMSS
-
-  The DPMS extension is exported but does not do anything at this time.
-
-
-  BB..33..66..  OOtthheerr EExxtteennssiioonnss
-
-  The LBX, SECURITY, XC-APPGROUP, and XFree86-Bigfont extensions do not
-  require any special Xdmx support and have been exported.
-
-
-  The BIG-REQUESTS, DEC-XTRAP, DOUBLE-BUFFER, Extended-Visual-
-  Information, FontCache, GLX, MIT-SCREEN-SAVER, MIT-SHM, MIT-SUNDRY-
-  NONSTANDARD, RECORD, SECURITY, SGI-GLX, SYNC, TOG-CUP, X-Resource, XC-
-  MISC, XFree86-DGA, XFree86-DRI, XFree86-Misc,
-  XFree86-VidModeExtension, and XVideo extensions are _n_o_t supported at
-  this time, but will be evaluated for inclusion in future DMX releases.
-  SSeeee bbeellooww ffoorr aaddddiittiioonnaall wwoorrkk oonn eexxtteennssiioonnss aafftteerr PPhhaassee IIIIII..
-
-
-  BB..44..  PPhhaassee IIVV
-
-  BB..44..11..  MMoovviinngg ttoo XXFFrreeee8866 44..33..00
-
-  For Phase IV, the recent release of XFree86 4.3.0 (27 February 2003)
-  was merged onto the dmx.sourceforge.net CVS trunk and all work is
-  proceeding using this tree.
-
-
-  BB..44..22..  EExxtteennssiioonnss
-
-  BB..44..22..11..  XXCC--MMIISSCC ((ssuuppppoorrtteedd))
-
-  XC-MISC is used internally by the X library to recycle XIDs from the X
-  server.  This is important for long-running X server sessions.  Xdmx
-  supports this extension.  The X Test Suite passed and failed the exact
-  same tests before and after this extension was enabled.
-
-
-  BB..44..22..22..  EExxtteennddeedd--VViissuuaall--IInnffoorrmmaattiioonn ((ssuuppppoorrtteedd))
-
-  The Extended-Visual-Information extension provides a method for an X
-  client to obtain detailed visual information.  Xdmx supports this
-  extension.  It was tested using the hw/dmx/examples/evi example
-  program.  NNoottee tthhaatt tthhiiss eexxtteennssiioonn iiss nnoott XXiinneerraammaa--aawwaarree -- it will
-  return visual information for each screen even though Xinerama is
-  causing the X server to export a single logical screen.
-
-
-  BB..44..22..33..  RREESS ((ssuuppppoorrtteedd))
-
-  The X-Resource extension provides a mechanism for a client to obtain
-  detailed information about the resources used by other clients.  This
-  extension was tested with the hw/dmx/examples/res program.  The X Test
-  Suite passed and failed the exact same tests before and after this
-  extension was enabled.
-
-
-  BB..44..22..44..  BBIIGG--RREEQQUUEESSTTSS ((ssuuppppoorrtteedd))
-
-  This extension enables the X11 protocol to handle requests longer than
-  262140 bytes.  The X Test Suite passed and failed the exact same tests
-  before and after this extension was enabled.
-
-
-  BB..44..22..55..  XXSSYYNNCC ((ssuuppppoorrtteedd))
-
-  This extension provides facilities for two different X clients to
-  synchronize their requests.  This extension was minimally tested with
-  xdpyinfo and the X Test Suite passed and failed the exact same tests
-  before and after this extension was enabled.
-
-
-  BB..44..22..66..  XXTTEESSTT,, RREECCOORRDD,, DDEECC--XXTTRRAAPP ((ssuuppppoorrtteedd)) aanndd XXTTeessttEExxtteennssiioonn11
-  ((nnoott ssuuppppoorrtteedd))
-
-  The XTEST and RECORD extension were developed by the X Consortium for
-  use in the X Test Suite and are supported as a standard in the X11R6
-  tree.  They are also supported in Xdmx.  When X Test Suite tests that
-  make use of the XTEST extension are run, Xdmx passes and fails exactly
-  the same tests as does a standard XFree86 X server.  When the rcrdtest
-  test (a part of the X Test Suite that verifies the RECORD extension)
-  is run, Xdmx passes and fails exactly the same tests as does a
-  standard XFree86 X server.
-
-
-  There are two older XTEST-like extensions: DEC-XTRAP and
-  XTestExtension1.  The XTestExtension1 extension was developed for use
-  by the X Testing Consortium for use with a test suite that eventually
-  became (part of?) the X Test Suite.  Unlike XTEST, which only allows
-  events to be sent to the server, the XTestExtension1 extension also
-  allowed events to be recorded (similar to the RECORD extension).  The
-  second is the DEC-XTRAP extension that was developed by the Digital
-  Equipment Corporation.
-
-
-  The DEC-XTRAP extension is available from Xdmx and has been tested
-  with the xtrap* tools which are distributed as standard X11R6 clients.
-
-
-  The XTestExtension1 is _n_o_t supported because it does not appear to be
-  used by any modern X clients (the few that support it also support
-  XTEST) and because there are no good methods available for testing
-  that it functions correctly (unlike XTEST and DEC-XTRAP, the code for
-  XTestExtension1 is not part of the standard X server source tree, so
-  additional testing is important).
-
-
-  Most of these extensions are documented in the X11R6 source tree.
-  Further, several original papers exist that this author was unable to
-  locate -- for completeness and historical interest, citations are
-  provide:
-
-     XXRREECCOORRDD
-        Martha Zimet. Extending X For Recording.  8th Annual X Technical
-        Conference Boston, MA January 24-26, 1994.
-
-     DDEECC--XXTTRRAAPP
-        Dick Annicchiarico, Robert Chesler, Alan Jamison. XTrap
-        Architecture. Digital Equipment Corporation, July 1991.
-
-     XXTTeessttEExxtteennssiioonn11
-        Larry Woestman. X11 Input Synthesis Extension Proposal. Hewlett
-        Packard, November 1991.
-
-
-  BB..44..22..77..  MMIITT--MMIISSCC ((nnoott ssuuppppoorrtteedd))
-
-  The MIT-MISC extension is used to control a bug-compatibility flag
-  that provides compatibility with xterm programs from X11R1 and X11R2.
-  There does not appear to be a single client available that makes use
-  of this extension and there is not way to verify that it works
-  correctly.  The Xdmx server does _n_o_t support MIT-MISC.
-
-
-  BB..44..22..88..  SSCCRREEEENNSSAAVVEERR ((nnoott ssuuppppoorrtteedd))
-
-  This extension provides special support for the X screen saver.  It
-  was tested with beforelight, which appears to be the only client that
-  works with it.  When Xinerama was not active, beforelight behaved as
-  expected.  However, when Xinerama was active, beforelight did not
-  behave as expected.  Further, when this extension is not active,
-  xscreensaver (a widely-used X screen saver program) did not behave as
-  expected.  Since this extension is not Xinerama-aware and is not
-  commonly used with expected results by clients, we have left this
-  extension disabled at this time.
-
-  BB..44..22..99..  GGLLXX ((ssuuppppoorrtteedd))
-
-  The GLX extension provides OpenGL and GLX windowing support.  In Xdmx,
-  the extension is called glxProxy, and it is Xinerama aware.  It works
-  by either feeding requests forward through Xdmx to each of the back-
-  end servers or handling them locally.  All rendering requests are
-  handled on the back-end X servers.  This code was donated to the DMX
-  project by SGI.  For the X Test Suite results comparison, see below.
-
-
-  BB..44..22..1100..  RREENNDDEERR ((ssuuppppoorrtteedd))
-
-  The X Rendering Extension (RENDER) provides support for digital image
-  composition.  Geometric and text rendering are supported.  RENDER is
-  partially Xinerama-aware, with text and the most basic compositing
-  operator; however, its higher level primitives (triangles, triangle
-  strips, and triangle fans) are not yet Xinerama-aware.  The RENDER
-  extension is still under development, and is currently at version 0.8.
-  Additional support will be required in DMX as more primitives and/or
-  requests are added to the extension.
-
-
-  There is currently no test suite for the X Rendering Extension;
-  however, there has been discussion of developing a test suite as the
-  extension matures.  When that test suite becomes available, additional
-  testing can be performed with Xdmx.  The X Test Suite passed and
-  failed the exact same tests before and after this extension was
-  enabled.
-
-
-  BB..44..22..1111..  SSuummmmaarryy
-
-  To summarize, the following extensions are currently supported: BIG-
-  REQUESTS, DEC-XTRAP, DMX, DPMS, Extended-Visual-Information, GLX, LBX,
-  RECORD, RENDER, SECURITY, SHAPE, SYNC, X-Resource, XC-APPGROUP, XC-
-  MISC, XFree86-Bigfont, XINERAMA, XInputExtension, XKEYBOARD, and
-  XTEST.
-
-
-  The following extensions are _n_o_t supported at this time: DOUBLE-
-  BUFFER, FontCache, MIT-SCREEN-SAVER, MIT-SHM, MIT-SUNDRY-NONSTANDARD,
-  TOG-CUP, XFree86-DGA, XFree86-Misc, XFree86-VidModeExtension,
-  XTestExtensionExt1, and XVideo.
-
-
-  BB..44..33..  AAddddiittiioonnaall TTeessttiinngg wwiitthh tthhee XX TTeesstt SSuuiittee
-
-  BB..44..33..11..  XXFFrreeee8866 wwiitthhoouutt XXTTEESSTT
-
-  After the release of XFree86 4.3.0, we retested the XFree86 X server
-  with and without using the XTEST extension.  When the XTEST extension
-  was _n_o_t used for testing, the XFree86 4.3.0 server running on our
-  usual test system with a Radeon VE card reported unexpected failures
-  in the following tests:
-
-  XListPixmapFormats: Test 1
-  XChangeKeyboardControl: Tests 9, 10
-  XGetDefault: Test 5
-  XRebindKeysym: Test 1
-
-
-
-  BB..44..33..22..  XXFFrreeee8866 wwiitthh XXTTEESSTT
-
-  When using the XTEST extension, the XFree86 4.3.0 server reported the
-  following errors:
-
-  XListPixmapFormats: Test 1
-  XChangeKeyboardControl: Tests 9, 10
-  XGetDefault: Test 5
-  XRebindKeysym: Test 1
-
-  XAllowEvents: Tests 20, 21, 24
-  XGrabButton: Tests 5, 9-12, 14, 16, 19, 21-25
-  XGrabKey: Test 8
-  XSetPointerMapping: Test 3
-  XUngrabButton: Test 4
-
-
-
-  While these errors may be important, they will probably be fixed
-  eventually in the XFree86 source tree.  We are particularly interested
-  in demonstrating that the Xdmx server does not introduce additional
-  failures that are not known Xinerama failures.
-
-
-  BB..44..33..33..  XXddmmxx wwiitthh XXTTEESSTT,, wwiitthhoouutt XXiinneerraammaa,, wwiitthhoouutt GGLLXX
-
-  Without Xinerama, but using the XTEST extension, the following errors
-  were reported from Xdmx (note that these are the same as for the
-  XFree86 4.3.0, except that XGetDefault no longer fails):
-
-  XListPixmapFormats: Test 1
-  XChangeKeyboardControl: Tests 9, 10
-  XRebindKeysym: Test 1
-
-  XAllowEvents: Tests  20, 21, 24
-  XGrabButton: Tests 5, 9-12, 14, 16, 19, 21-25
-  XGrabKey: Test 8
-  XSetPointerMapping: Test 3
-  XUngrabButton: Test 4
-
-
-
-  BB..44..33..44..  XXddmmxx wwiitthh XXTTEESSTT,, wwiitthh XXiinneerraammaa,, wwiitthhoouutt GGLLXX
-
-  With Xinerama, using the XTEST extension, the following errors were
-  reported from Xdmx:
-
-  XListPixmapFormats: Test 1
-  XChangeKeyboardControl: Tests 9, 10
-  XRebindKeysym: Test 1
-
-  XAllowEvents: Tests 20, 21, 24
-  XGrabButton: Tests 5, 9-12, 14, 16, 19, 21-25
-  XGrabKey: Test 8
-  XSetPointerMapping: Test 3
-  XUngrabButton: Test 4
-
-  XCopyPlane: Tests 13, 22, 31 (well-known XTEST/Xinerama interaction issue)
-  XDrawLine: Test 67
-  XDrawLines: Test 91
-  XDrawSegments: Test 68
-
-
-
-  Note that the first two sets of errors are the same as for the XFree86
-  4.3.0 server, and that the XCopyPlane error is a well-known error
-  resulting from an XTEST/Xinerama interaction when the request crosses
-  a screen boundary.  The XDraw* errors are resolved when the tests are
-  run individually and they do not cross a screen boundary.  We will
-  investigate these errors further to determine their cause.
-
-
-  BB..44..33..55..  XXddmmxx wwiitthh XXTTEESSTT,, wwiitthh XXiinneerraammaa,, wwiitthh GGLLXX
-
-  With GLX enabled, using the XTEST extension, the following errors were
-  reported from Xdmx (these results are from early during the Phase IV
-  development, but were confirmed with a late Phase IV snapshot):
-
-  XListPixmapFormats: Test 1
-  XChangeKeyboardControl: Tests 9, 10
-  XRebindKeysym: Test 1
-
-  XAllowEvents: Tests 20, 21, 24
-  XGrabButton: Tests 5, 9-12, 14, 16, 19, 21-25
-  XGrabKey: Test 8
-  XSetPointerMapping: Test 3
-  XUngrabButton: Test 4
-
-  XClearArea: Test 8
-  XCopyArea: Tests 4, 5, 11, 14, 17, 23, 25, 27, 30
-  XCopyPlane: Tests 6, 7, 10, 19, 22, 31
-  XDrawArcs: Tests 89, 100, 102
-  XDrawLine: Test 67
-  XDrawSegments: Test 68
-
-
-  Note that the first two sets of errors are the same as for the XFree86
-  4.3.0 server, and that the third set has different failures than when
-  Xdmx does not include GLX support.  Since the GLX extension adds new
-  visuals to support GLX's visual configs and the X Test Suite runs
-  tests over the entire set of visuals, additional rendering tests were
-  run and presumably more of them crossed a screen boundary.  This con-
-  clusion is supported by the fact that nearly all of the rendering
-  errors reported are resolved when the tests are run individually and
-  they do no cross a screen boundary.
-
-
-  Further, when hardware rendering is disabled on the back-end displays,
-  many of the errors in the third set are eliminated, leaving only:
-
-  XClearArea: Test 8
-  XCopyArea: Test 4, 5, 11, 14, 17, 23, 25, 27, 30
-  XCopyPlane: Test 6, 7, 10, 19, 22, 31
-
-
-
-  BB..44..33..66..  CCoonncclluussiioonn
-
-  We conclude that all of the X Test Suite errors reported for Xdmx are
-  the result of errors in the back-end X server or the Xinerama
-  implementation.  Further, all of these errors that can be reasonably
-  fixed at the Xdmx layer have been.  (Where appropriate, we have
-  submitted patches to the XFree86 and Xinerama upstream maintainers.)
-
-
-  BB..44..44..  DDyynnaammiicc RReeccoonnffiigguurraattiioonn
-
-  During this development phase, dynamic reconfiguration support was
-  added to DMX.  This support allows an application to change the
-  position and offset of a back-end server's screen.  For example, if
-  the application would like to shift a screen slightly to the left, it
-  could query Xdmx for the screen's <x,y> position and then dynamically
-  reconfigure that screen to be at position <x+10,y>.  When a screen is
-  dynamically reconfigured, input handling and a screen's root window
-  dimensions are adjusted as needed.  These adjustments are transparent
-  to the user.
-
-
-  BB..44..44..11..  DDyynnaammiicc rreeccoonnffiigguurraattiioonn eexxtteennssiioonn
-
-  The application interface to DMX's dynamic reconfiguration is through
-  a function in the DMX extension library:
-
-  Bool DMXReconfigureScreen(Display *dpy, int screen, int x, int y)
-
-
-  where _d_p_y is DMX server's display, _s_c_r_e_e_n is the number of the screen
-  to be reconfigured, and _x and _y are the new upper, left-hand coordi-
-  nates of the screen to be reconfigured.
-
-
-  The coordinates are not limited other than as required by the X
-  protocol, which limits all coordinates to a signed 16 bit number.  In
-  addition, all coordinates within a screen must also be legal values.
-  Therefore, setting a screen's upper, left-hand coordinates such that
-  the right or bottom edges of the screen is greater than 32,767 is
-  illegal.
-
-
-  BB..44..44..22..  BBoouunnddiinngg bbooxx
-
-  When the Xdmx server is started, a bounding box is calculated from the
-  screens' layout given either on the command line or in the
-  configuration file.  This bounding box is currently fixed for the
-  lifetime of the Xdmx server.
-
-
-  While it is possible to move a screen outside of the bounding box, it
-  is currently not possible to change the dimensions of the bounding
-  box.  For example, it is possible to specify coordinates of
-  <-100,-100> for the upper, left-hand corner of the bounding box, which
-  was previously at coordinates <0,0>.  As expected, the screen is moved
-  down and to the right; however, since the bounding box is fixed, the
-  left side and upper portions of the screen exposed by the
-  reconfiguration are no longer accessible on that screen.  Those
-  inaccessible regions are filled with black.
-
-
-  This fixed bounding box limitation will be addressed in a future
-  development phase.
-
-
-  BB..44..44..33..  SSaammppllee aapppplliiccaattiioonnss
-
-  An example of where this extension is useful is in setting up a video
-  wall.  It is not always possible to get everything perfectly aligned,
-  and sometimes the positions are changed (e.g., someone might bump into
-  a projector).  Instead of physically moving projectors or monitors, it
-  is now possible to adjust the positions of the back-end server's
-  screens using the dynamic reconfiguration support in DMX.
-
-
-  Other applications, such as automatic setup and calibration tools, can
-  make use of dynamic reconfiguration to correct for projector alignment
-  problems, as long as the projectors are still arranged rectilinearly.
-  Horizontal and vertical keystone correction could be applied to
-  projectors to correct for non-rectilinear alignment problems; however,
-  this must be done external to Xdmx.
-
-
-  A sample test program is included in the DMX server's examples
-  directory to demonstrate the interface and how an application might
-  use dynamic reconfiguration.  See dmxreconfig.c for details.
-
-
-  BB..44..44..44..  AAddddiittiioonnaall nnootteess
-
-  In the original development plan, Phase IV was primarily devoted to
-  adding OpenGL support to DMX; however, SGI became interested in the
-  DMX project and developed code to support OpenGL/GLX.  This code was
-  later donated to the DMX project and integrated into the DMX code
-  base, which freed the DMX developers to concentrate on dynamic
-  reconfiguration (as described above).
-
-
-  BB..44..55..  DDooxxyyggeenn ddooccuummeennttaattiioonn
-
-  Doxygen is an open-source (GPL) documentation system for generating
-  browseable documentation from stylized comments in the source code.
-  We have placed all of the Xdmx server and DMX protocol source code
-  files under Doxygen so that comprehensive documentation for the Xdmx
-  source code is available in an easily browseable format.
-
-
-  BB..44..66..  VVaallggrriinndd
-
-  Valgrind, an open-source (GPL) memory debugger for Linux, was used to
-  search for memory management errors.  Several memory leaks were
-  detected and repaired.  The following errors were not addressed:
-
-  1. When the X11 transport layer sends a reply to the client, only
-     those fields that are required by the protocol are filled in --
-     unused fields are left as uninitialized memory and are therefore
-     noted by valgrind.  These instances are not errors and were not
-     repaired.
-
-  2. At each server generation, glxInitVisuals allocates memory that is
-     never freed.  The amount of memory lost each generation
-     approximately equal to 128 bytes for each back-end visual.  Because
-     the code involved is automatically generated, this bug has not been
-     fixed and will be referred to SGI.
-
-  3. At each server generation, dmxRealizeFont calls XLoadQueryFont,
-     which allocates a font structure that is not freed.
-     dmxUnrealizeFont can free the font structure for the first screen,
-     but cannot free it for the other screens since they are already
-     closed by the time dmxUnrealizeFont could free them.  The amount of
-     memory lost each generation is approximately equal to 80 bytes per
-     font per back-end.  When this bug is fixed in the the X server's
-     device-independent (dix) code, DMX will be able to properly free
-     the memory allocated by XLoadQueryFont.
-
-
-  BB..44..77..  RRAATTSS
-
-  RATS (Rough Auditing Tool for Security) is an open-source (GPL)
-  security analysis tool that scans source code for common security-
-  related programming errors (e.g., buffer overflows and TOCTOU races).
-  RATS was used to audit all of the code in the hw/dmx directory and all
-  "High" notations were checked manually.  The code was either re-
-  written to eliminate the warning, or a comment containing "RATS" was
-  inserted on the line to indicate that a human had checked the code.
-  Unrepaired warnings are as follows:
-
-  1. Fixed-size buffers are used in many areas, but code has been added
-     to protect against buffer overflows (e.g., XmuSnprint).  The only
-     instances that have not yet been fixed are in config/xdmxconfig.c
-     (which is not part of the Xdmx server) and input/usb-common.c.
-
-  2. vprintf and vfprintf are used in the logging routines.  In general,
-     all uses of these functions (e.g., dmxLog) provide a constant
-     format string from a trusted source, so the use is relatively
-     benign.
-
-  3. glxProxy/glxscreens.c uses getenv and strcat.  The use of these
-     functions is safe and will remain safe as long as ExtensionsString
-     is longer then GLXServerExtensions (ensuring this may not be ovious
-     to the casual programmer, but this is in automatically generated
-     code, so we hope that the generator enforces this constraint).
-
-
-
diff --git a/xorg-server/hw/dmx/doc/scaled.txt b/xorg-server/hw/dmx/doc/scaled.txt
deleted file mode 100644
index d30105dd2..000000000
--- a/xorg-server/hw/dmx/doc/scaled.txt
+++ /dev/null
@@ -1,579 +0,0 @@
-  Scaled Window Support in DMX
-  Rickard E. Faith and Kevin E. Martin
-  15 October 2003 (created 19 September 2003)
-
-  This document investigates the possibility of adding scaled window
-  support to the DMX X server, thereby allowing a window or some
-  selected part of the logical DMX area to be displayed using a scaling
-  factor.  For example, this might allow the contents of a window to be
-  magnified for easier viewing.  In particular, scaling for the VNC
-  client is explored.  _C_o_p_y_r_i_g_h_t _2_0_0_3 _b_y _R_e_d _H_a_t_, _I_n_c_._, _R_a_l_e_i_g_h_, _N_o_r_t_h
-  _C_a_r_o_l_i_n_a
-
-  ______________________________________________________________________
-
-  Table of Contents
-
-
-  1. Introduction
-     1.1 DMX
-     1.2 Problem Statement
-     1.3 Task
-
-  2. Previous Work
-     2.1 VNC
-        2.1.1 Scaling under VNC
-     2.2 The X Video Extension
-
-  3. Possible Solutions
-     3.1 VNC-like Scaling
-        3.1.1 Software Scaling
-        3.1.2 Scaling with the X Video Extension
-           3.1.2.1 Implementing the X Video Extension for DMX
-           3.1.2.2 Supporting RGB formats for the X Video Extension
-        3.1.3 Scaling with an XPutImageScaled Extension
-        3.1.4 Scaling with an XCopyAreaScaled Extension
-        3.1.5 Scaling with OpenGL
-     3.2 Application-transparent Scaling for DMX
-        3.2.1 Back-end Scaling Without Disconnect/Reconnect
-        3.2.2 Back-end Scaling With Disconnect/Reconnect
-        3.2.3 Server-side Scaling
-     3.3 XCreateScaledWindow API
-        3.3.1 XCreateWindow
-        3.3.2 XSetWindowAttributes
-        3.3.3 XGetWindowAttributes, XGetGeometry
-        3.3.4 Popup and Child window positions
-        3.3.5 Events
-        3.3.6 Implementation
-
-  4. Conclusion and Recommendations
-
-
-  ______________________________________________________________________
-
-  11..  IInnttrroodduuccttiioonn
-
-  11..11..  DDMMXX
-
-  The DMX X server (Xdmx) is a proxy server that is designed to allow X
-  servers on multiple machines to be combined into a single multi-headed
-  X server.  Combined with Xinerama, these heads can appear as a single
-  very high-resolution screen.  Typical applications include the
-  creation of a video wall with 16 1280x1024 displays arranged in a
-  rectangle, for a total resolution of of 5120x4096.
-
-
-
-  11..22..  PPrroobblleemm SSttaatteemmeenntt
-
-  Applications displayed on a physically large video wall that provides
-  high pixel-resolution may be difficult to see, especially if the
-  application is designed for use on a typical desktop computer with a
-  relatively small display located close to the human operator.  The
-  goal of this paper is to describe and discuss solutions to this
-  problem.
-
-  The original driving problem for this work is to provide scaling for
-  the vncviewer application when displayed using DMX (VNC scaling is
-  currently available only with the Windows client, and there is no plan
-  to extend that capability to other clients).  While this specific
-  problem will be addressed in this paper, the general solution space
-  will also be explored, since this may lead to a good solution not only
-  for vncviewer but also for other applications.
-
-  11..33..  TTaasskk
-
-  For reference, here is the original description of the task this paper
-  addresses:
-
-  +o  Scaled window support (for VNC)
-
-     +o  Investigate possibility of implementing a "scaled window"
-        extension:
-
-        +o  Add XCreateScaledWindow call that could be used in place of
-           XCreateWindow
-
-        +o  All primitives drawn to scaled window would be scaled by
-           appropriate (integral?) scaling factor
-
-     +o  Alternate approach: special case VNC support
-
-  22..  PPrreevviioouuss WWoorrkk
-
-  This section reviews relevant previous work.
-
-  22..11..  VVNNCC
-
-  22..11..11..  SSccaalliinngg uunnddeerr VVNNCC
-
-  When using the vncviewer program for Windows, it is possible to
-  specify a scaling factor (as numerator and denominator).  When scaling
-  is in effect, the viewer software uses StretchBlt (instead of BitBlt)
-  to display the pixels for the user.  When this call is made, the
-  viewer already has received all of the pixel information (at full
-  unscaled resolution).
-
-  The scaling in VNC is primitive.  It does not conserve bandwidth, it
-  does not treat textual information differently (i.e., by using a
-  suitably scaled font), and it does not provide any anti-aliasing other
-  than that provided by the underlying (Windows-only) system library.
-
-  22..22..  TThhee XX VViiddeeoo EExxtteennssiioonn
-
-  The X Video Extension is a widely-available extension to the X11
-  protocol that provides support for streaming video.  Integral to this
-  support is the ability to arbitrarily scale the output.  In version
-  2.2 of the X Video specification, support for scaled still images was
-  provided, using both shared memory and traditional transport.  The API
-  for this support uses calls that are quite similar to XCreateWindow,
-  XPutImage, and XShmPutImage.  Currently, most of the drivers
-  implemented in XFree86 only support data in various YUV formats.
-  However, several modern video adaptors support RGB as well.
-  Note, though, that the target output for this scaling is an overlay
-  plane -- so X Video provides functionality that is fundamentally
-  different from that provided by the Windows StrechBlt call.
-
-  33..  PPoossssiibbllee SSoolluuttiioonnss
-
-  This section briefly discusses possible solutions, including major
-  advantages and disadvantages from both the implementation and the end-
-  user programmer standpoint.
-
-  33..11..  VVNNCC--lliikkee SSccaalliinngg
-
-  33..11..11..  SSooffttwwaarree SSccaalliinngg
-
-  The vncviewer application could be modified to provide software
-  scaling.  This is not a general solution, but it does solve one of the
-  goals of this work.
-
-  A prototype of this solution was implemented and a patch against
-  vnc-3.3.7-unixsrc is available in the dmx/external directory.  Because
-  of limited time available for this work, all of the edge cases were
-  not considered and the solution works well mainly for integer scaling.
-
-  Currently, vncviewer writes to the X display with XPutImage,
-  XCopyArea, and XFillRectangle.  All instances of these calls have to
-  be aware of scaling and must round correctly.  In the prototype
-  solution, rounding is incorrect and can cause artifacts.
-
-  A better solution would be to cache all updates to the desktop image
-  in vncviewer and only send the damaged area to the X display with
-  XPutImage.  This would allow the damaged area to be computed so that
-  rounding errors do not create artifacts.  This method is probably
-  similar to what is used in the Window client.  (The whole VNC suite is
-  being re-written in C++ and the forthcoming version 4 has not been
-  evaluated.)
-
-  33..11..22..  SSccaalliinngg wwiitthh tthhee XX VViiddeeoo EExxtteennssiioonn
-
-  The scaling in the Windows vncviewer application makes use of a scaled
-  blit that is supplied by the underlying system library.  Several video
-  cards currently provide support for a scaled blit, and some X servers
-  (including XFree86) expose this capability to applications via the
-  XvPutImage interface of the X Video Extension.  The capability exposed
-  by XvPutImage results in the scaled image being drawn to an overlay
-  plane.  Most video cards also provide support for a scaled blit into
-  the normal output planes, but this is not exposed via XvPutImage.
-
-  The vncviewer program could be modified to use the X Video Extension
-  to provide scaling under X11 that is similar to the scaling currently
-  provided under Windows.  Unfortunately, Xdmx does not currently export
-  the X Video Extension, so this would not provide an immediate solution
-  usable with DMX.
-
-  A very early-stage proof-of-concept prototype was implemented and a
-  preliminary patch against vnc-3.3.7-unixsrc is available in the
-  dmx/external directory.  This prototype was implemented to better
-  understand the problems that must be solved to make this solution
-  viable:
-
-  +o  As noted under the software scaling section above, vncviewer writes
-     to the X display with several different calls.  These calls write
-     to the normal output planes and are compatible with XvPutImage,
-     which writes to an overlay plane.  To eliminate artifacts caused by
-     this problem, vncviewer should be modified so that a cached copy of
-     the desktop is available, either as a client-side image or a
-     server-side off-screen pixmap, so that XvPutImage would be the only
-     method for writing to the X display.
-
-  +o
-
-     Although several modern graphics adaptors support hardware scaling
-     using an RGB format (e.g., ATI Radeon, nVidia, etc.), XFree86
-     drivers typically only implement YUV formats.  YUV generally
-     compress the pixel information in some way.  For example, two
-     commonly implemented formats, YUY2 and UYVY provide intensity
-     information for every RGB pixel, but only provide chroma and
-     luminance information for pairs of horizontal pixels.  Since VNC
-     uses pixel-resolution for communicating updates on the wire,
-     additional artifacts are introduced (because there may not be
-     enough information from the wire to update a pair of pixels).
-
-     Further, the well-known problem with YUV encoding is even more
-     evident when the image is a desktop instead of a movie.  For
-     example, consider a 1-pixel-wide vertical window border.  If the
-     border changes in color but not intensity (e.g., because a window
-     manager uses color to indicate focus), there may or may not be a
-     change in the YUY2 image, depending on the algorithm used for RGB
-     to YUV conversion and on how the border pixel is ordered in the
-     pair of pixels used by the algorithm.
-
-     Many of these artifacts could be eliminated if vncviewer cached a
-     complete RGB image of the desktop, and only did the conversion to
-     YUV for properly aligned areas of damage.  The remaining artifacts
-     could be eliminated if an RGB format was used with X Video (which
-     may require the extension of existing XFree86 drivers to support
-     RGB).
-
-  +o  Most modern video cards support exactly one overlay plane that is
-     suitable for use with X Video.  Therefore, only one application can
-     use X Video at any given time.  This is a severe limitation in a
-     desktop environment.
-
-  33..11..22..11..  IImmpplleemmeennttiinngg tthhee XX VViiddeeoo EExxtteennssiioonn ffoorr DDMMXX
-
-  The user-level API for X Video is fairly simple, but the underlying
-  support required for the full specification is large.  However, since
-  the API provides a method to query supported capabilities, a usable
-  subset of X Video can be implemented that would support XvPutImage and
-  little else.  This would require support for the following:
-
-  +o  X Video Extension API calls, including the following:
-
-     +o  XvQueryExtension
-
-     +o  XvQueryAdaptors
-
-     +o  XvQueryPortAttributes
-
-     +o  XvFreeAdaptorInfo
-
-     +o  XvListImageFormats
-
-     +o  XvGrabPort
-
-     +o  XvCreateImage
-
-     +o  XvPutImage
-
-     +o  XvShmCreateImage
-
-     +o  XvShmPutImage
-
-  +o  Support for querying back-end X Video Extension capabilities.
-
-  +o  Support for sending the image to the back-ends.  Because X Video
-     requires sending full images, there may be a trade-off between
-     bandwidth limitations and additional complexity to divide the image
-     up such that is scales properly.
-
-  +o  Possible support for a software fall-back.  For example, if all of
-     the back-ends do not support the X Video Extension, software
-     scaling can be implemented such that the image is sent to the back-
-     end with XPutImage.  This pathway would have poor performance.
-
-  33..11..22..22..  SSuuppppoorrttiinngg RRGGBB ffoorrmmaattss ffoorr tthhee XX VViiddeeoo EExxtteennssiioonn
-
-  Assuming an XFree86 driver already supports the X Video Extension, and
-  assuming the target hardware supports an RGB format, then adding
-  support for that format is relatively simple and straightforward.
-
-  33..11..33..  SSccaalliinngg wwiitthh aann XXPPuuttIImmaaggeeSSccaalleedd EExxtteennssiioonn
-
-  Instead of (or in addition to) implementing the X Video Extension in
-  DMX, one obvious solution would be to implement a new extension that
-  provides access to hardware-assisted scaled blits, similar to the
-  StretchBlt call available under Windows.  This call would scale RGB
-  images and would not use the overlay plane (unlike the X Video
-  Extension).
-
-  This approach has many of the same advantages and disadvantages as the
-  XCopyAreaScaled Extension, discussed in the next section.  Discussion
-  of XPutImageScaled is deferred in favor of XCopyAreaScaled for the
-  following reasons:
-
-  +o  XPutImageScaled can be emulated with XCopyAreaScaled by first using
-     XPutImage to copy the image to an off-screen pixmap, and then
-     calling XCopyAreaScaled between that off-screen pixmap and the
-     target drawable.
-
-  +o  Since XCopyAreaScaled would copy between two areas of on-screen or
-     off-screen memory, it has additional uses and can be viewed as
-     efficiently providing a superset of XPutImageScaled functionality.
-
-  33..11..44..  SSccaalliinngg wwiitthh aann XXCCooppyyAArreeaaSSccaalleedd EExxtteennssiioonn
-
-  As noted in the previous section, because XCopyAreaScaled provides a
-  superset of the functionality provided by XPutImageScaled, we will
-  consider this extension instead.
-
-  First, XCopyAreaScaled would provide for RGB scaling between pixmaps
-  (i.e., on-screen or off-screen areas of memory that reside on the
-  video card).  Unlike the X Video Extension, which writes into an
-  overlay plane, XCopyAreaScaled would write into the non-overlay areas
-  of the screen.  Key points to consider are as follows:
-
-  +o  Because different planes are involved, the two scaling operations
-     are usually implemented in hardware differently, so an
-     XCopyAreaScaled extension could be added in a manner that would
-     neither conflict with nor interact with the X Video extension in
-     any way.
-
-  +o  The XCopyAreaScaled extension provides new functionality that the X
-     Video Extension does not provide.  Based on anecdotal feedback, we
-     believe that many people outside the DMX and VNC communities would
-     be excited about this extension.
-
-  +o  The main drawback to this extension is that it is new and needs to
-     be implemented at the driver level in XFree86 for each video card
-     to be supported.  At the present time, it is more likely that the X
-     Video Extension will be implemented for a particular piece hardware
-     because the X Video extension has multimedia uses.  However, over
-     time, we would expect the XCopyAreaScaled extension to be
-     implemented along with the X Video extension, especially if it
-     becomes popular.
-
-  +o  Another drawback is that not all modern cards provide support for a
-     simple scaled blit operation.  However, these cards usually do
-     provide a 3D pipeline which could be used to provide this
-     functionality in a manner that is transparent to the client
-     application that is using the XCopyAreaScaled extension.  However,
-     this implementation pathway would make this extension somewhat more
-     difficult to implement on certain cards.
-
-  33..11..55..  SSccaalliinngg wwiitthh OOppeennGGLL
-
-  Another general solution to the scaling problem is to use the texture
-  scaling found in all 3D hardware.  This ability is already exposed
-  through OpenGL and can be exploited by clients without X server
-  modification (i.e., other than the ability to support OpenGL).  An
-  application using OpenGL would transmit the non-scaled image to the X
-  server as a texture, and would then display a single non-transformed
-  rect using that texture.  This also works around the single overlay
-  problem with the X Video Extension as well as the need to implement
-  additional scaled primitive extensions.
-
-  The downside is that most OpenGL implementations require power of 2
-  texture sizes and this can be very wasteful of memory if, for example,
-  the application needs to scale a 1025x1025 image, which would require
-  a 2048x2048 texture area (even a 640x480 image would require a
-  1024x512 texture).  Another downside is that some OpenGL
-  implementations have a limited about of texture memory and cannot
-  handle textures that are very large.  For example, they might limit
-  the texture size to 1024x1024.
-
-  33..22..  AApppplliiccaattiioonn--ttrraannssppaarreenntt SSccaalliinngg ffoorr DDMMXX
-
-  33..22..11..  BBaacckk--eenndd SSccaalliinngg WWiitthhoouutt DDiissccoonnnneecctt//RReeccoonnnneecctt
-
-  VNC does scaling on the client side (in the vncviewer application).
-  Implementing a similar solution for DMX would require support in the
-  back-end X servers and, therefore, is not a general solution.
-
-  XFree86 already implements some support for "scaling" that could be
-  used with DMX: if, in the XF86Config file, multiple Modes are listed
-  in the Display Subsection of the Screen Section, then pressing Ctrl-
-  Alt-Plus and Ctrl-Alt-Minus can be used to iterate through the listed
-  modes.  The display dimensions will change to the dimensions in the
-  Modes line, but the logical dimensions of the X server (i.e., the
-  dimensions that Xdmx knows about) will not change.
-
-  Further, the dimensions of the XFree86 display are under software
-  control (via the XFree86-VidModeExtension), so the Xdmx server could
-  change the screen dimensions on a per-display basis, thereby scaling
-  the information on part of that display.
-
-  However, this scaling appears to have limited use.  For example,
-  assume a 4 by 4 display wall consisting of 16 1280x1024 displays.  If
-  all of the back-end servers were simultaneously configured to display
-  640x480, the left hand corner of each display would be magnified, but
-  the composite result would be unreadable.  Magnifying one display at a
-  time could be usable, but could have limited utility, since the result
-  would still be no larger than a single display.
-
-
-  33..22..22..  BBaacckk--eenndd SSccaalliinngg WWiitthh DDiissccoonnnneecctt//RReeccoonnnneecctt
-
-  Disconnect and reconnect features are not currently supported in DMX,
-  but are scheduled to be implemented in the future.  These features,
-  combined with the XFree86-VidModeExtension Extension, would allow an
-  application to do the following:
-
-  +o  Disconnect a specific back-end server (via the DMX Extension),
-
-  +o  reconfigure the XFree86 back-end server resolution, and
-
-  +o  reconnect the back-end server to DMX -- at a new origin with the
-     new screen resolution.
-
-  For example, consider a display wall consisting of 16 1280x1024
-  displays with a total resolution of 5120x4096.  All of the screens
-  could be disconnected, repositioned, and reconnected each at a
-  resolution of 640x480.  The total resolution of the display wall would
-  be 2560x1920, allowing a view of a selected area approximately one-
-  fourth of the size of the DMX display.  This change would be
-  completely application independent (except, perhaps, for a DMX-aware
-  window manager).  When work at the increased resolution was completed,
-  the back-end servers could be disconnected, reconfigured, and
-  reconnected for the original 5120x4096 view.
-
-  Support for this type of scaling can be implemented in a DMX-aware X11
-  client assuming the DMX server support arbitrary disconnect and
-  reconnect semantics.  Because this application cannot be written
-  before disconnect/reconnect is implemented, this solution will not be
-  discussed further in this paper.
-
-  33..22..33..  SSeerrvveerr--ssiiddee SSccaalliinngg
-
-  In earlier versions of DMX, a frame buffer was maintained on the
-  server side, and XPutImage was used to move the information from the
-  server to the client (similar to some early VNC implementations).  The
-  use of a server-side frame buffer would allow the server to do
-  scaling, but is not a recommended solution because of overall
-  performance issues and server-side memory issues (i.e., the frame
-  buffer would be very large for large display walls).
-
-  Exploration of this path is not recommended.
-
-  33..33..  XXCCrreeaatteeSSccaalleeddWWiinnddooww AAPPII
-
-  The implementation of X Video Extension in DMX, and the use of
-  XvPutImage by applications requiring scaling requires significant
-  changes in DMX Further, XvPutImage is, essentially a scaled blit, and
-  it is only useful for applications which are already using (or can be
-  modified to use) XPutImage.  Therefore, a more general API will be
-  discussed as another possibility.
-
-  X applications typically create windows with the XCreateWindow call.
-  A new extension could provide an XCreateScaledWindow call that could
-  be used in place of the XCreateWindow call and be otherwise
-  transparent to the application.  This would allow applications, even
-  those that do not depend on XPutImage, to take advantage of window
-  scaling.  In this section we describe how the call would work, what
-  transparency it provides, and how to solve the potential problems that
-  transparency creates.
-
-  33..33..11..  XXCCrreeaatteeWWiinnddooww
-
-  The XCreateWindow call takes width and height as parameters.  An
-  XCreateScaledWindow call could take all the same parameters, with the
-  addition of a scaling factor.
-  33..33..22..  XXSSeettWWiinnddoowwAAttttrriibbuutteess
-
-  An X11 window has several attributes that would have to be scaled:
-
-  +o  Background and border pixmaps
-
-  +o  Border width
-
-  +o  Cursor
-
-  33..33..33..  XXGGeettWWiinnddoowwAAttttrriibbuutteess,, XXGGeettGGeeoommeettrryy
-
-  For transparency, calls that query the window attributes should return
-  unscaled information.  This suggests that all unscaled pixmaps and
-  window attributes should be cached.
-
-  Unfortunately, a window manager requires the scaled geometry to
-  properly decorate the window.  The X server can probably determine
-  which client is acting as the window manager (e.g., because that
-  client will select events that are used exclusively by the window
-  manager).  However, other Scaled Window Extension aware clients may
-  also need to determine the scaled geometry.  Therefore, at least two
-  additional extension calls should be implemented:
-  XGetScaledWindowAttributes and XGetScaledGeometry.
-
-  33..33..44..  PPooppuupp aanndd CChhiilldd wwiinnddooww ppoossiittiioonnss
-
-  Some applications may position popup and child windows based on an
-  unscaled notion of the main window geometry.  In this case, additional
-  modifications to the client would be required.
-
-  33..33..55..  EEvveennttss
-
-  Most events (e.g., for mouse motion) return information about the
-  coordinates at which the even occurred.  These coordinates would have
-  to be modified so that unscaled values were presented to the client.
-
-  33..33..66..  IImmpplleemmeennttaattiioonn
-
-  There are many implementation issues, some of which are similar to the
-  issues involved in implementing the X Video Extension for DMX.  The
-  window contents must be scaled, either by performing all operations to
-  a frame buffer and then writing the image to the display (perhaps
-  using hardware scaling support), or by modifying all of the various
-  drawing operations to perform scaling.  Because of the complexity
-  involved, the frame buffer option is recommended.
-
-  44..  CCoonncclluussiioonn aanndd RReeccoommmmeennddaattiioonnss
-
-  We recommend a three phase implementation strategy, based on how an
-  application could be written to take advantage of scaling:
-
-  1.
-
-     The XCopyAreaScaled extension should be implemented, since this is
-     the ideal solution for applications like VNC, and since making use
-     of this extension will require minimal changes to applications that
-     already use XPutImage or XCopyArea.
-
-     The initial implementation work would include the design of the X
-     protocol extension, writing this up in the usual format for
-     extension documentation, implementation of the protocol transport
-     pieces in XFree86, implementation of a software fall-back in
-     XFree86 and DMX, one example hardware implementation for XFree86,
-     and implementation of support for this extension in DMX.
-
-     We suggest implementing the extension first on the ATI Radeon
-     cards.  However, since these cards do not provide a 2D scaled blit
-     primitive, the implementation would have to make use of the 3D
-     texture engine to emulate a scaled blit.  This is recommended,
-     since other modern graphics cards also do not provide a simple 2D
-     scaled blit operation and an example of the more difficult
-     implementation pathway would be helpful to others.
-
-  2.
-
-     Until XCopyAreaScaled is widely supported, applications that
-     require scaling will have to fall back to another scaling method.
-     We suggest OpenGL as the first fall-back method because it is
-     widely available and supported by DMX.
-
-     A project centered around OpenGL-based scaling would implement this
-     scaling in VNC as an example.  This work would include re-writing
-     the vncviewer rendering engine to cache a master copy of the
-     desktop image for all operations.
-
-  3.
-
-     Since OpenGL is not implemented everywhere, and may not provide
-     hardware-assisted performance in every implementation, an
-     application that requires scaling should also fall back to using
-     the X Video Extension.
-
-     This project would add support for the X Video Extension to DMX and
-     would add support to VNC to take advantage of this extension
-     without introducing artifacts.  This would require modifying the
-     vncviewer rendering engine to cache a master copy of the desktop
-     image for all operations.  This project should also add support for
-     the RGB format to at least one XFree86 driver (e.g., ATI Radeon).
-
-     The X Video Extension is one of the few popular extensions that DMX
-     does not support.  We recommend implementing the X Video Extension
-     even if scaling is the specific goal of that work.
-
-  We do nnoott recommend implementation of the XCreateScaledWindow
-  extension because of the complexity involved.  We do nnoott recommend
-  implementation of the XPutImageScaled extension because it requires
-  the same amount of work as the XCopyAreaScaled extension, but provides
-  less functionality.  Further, server-side scaling with a large frame
-  buffer is nnoott recommended because of the performance implications.
-
-  The back-end scaling, especially with disconnect/reconnect support
-  should be explored in the future after disconnect/reconnect is
-  implemented, but not at the present time.
-
-
-
diff --git a/xorg-server/hw/vfb/InitOutput.c b/xorg-server/hw/vfb/InitOutput.c
index 60915fdbf..29857877e 100644
--- a/xorg-server/hw/vfb/InitOutput.c
+++ b/xorg-server/hw/vfb/InitOutput.c
@@ -77,7 +77,6 @@ from The Open Group.
 
 typedef struct
 {
-    int scrnum;
     int width;
     int paddedBytesWidth;
     int paddedWidth;
@@ -105,7 +104,15 @@ typedef struct
 } vfbScreenInfo, *vfbScreenInfoPtr;
 
 static int vfbNumScreens;
-static vfbScreenInfo vfbScreens[MAXSCREENS];
+static vfbScreenInfo *vfbScreens;
+static vfbScreenInfo defaultScreenInfo = {
+    .width  = VFB_DEFAULT_WIDTH,
+    .height = VFB_DEFAULT_HEIGHT,
+    .depth  = VFB_DEFAULT_DEPTH,
+    .blackPixel = VFB_DEFAULT_BLACKPIXEL,
+    .whitePixel = VFB_DEFAULT_WHITEPIXEL,
+    .lineBias = VFB_DEFAULT_LINEBIAS,
+};
 static Bool vfbPixmapDepths[33];
 #ifdef HAS_MMAP
 static char *pfbdir = NULL;
@@ -113,7 +120,6 @@ static char *pfbdir = NULL;
 typedef enum { NORMAL_MEMORY_FB, SHARED_MEMORY_FB, MMAPPED_FILE_FB } fbMemType;
 static fbMemType fbmemtype = NORMAL_MEMORY_FB;
 static char needswap = 0;
-static int lastScreen = -1;
 static Bool Render = TRUE;
 
 #define swapcopy16(_dst, _src) \
@@ -134,25 +140,6 @@ vfbInitializePixmapDepths(void)
 	vfbPixmapDepths[i] = FALSE;
 }
 
-static void
-vfbInitializeDefaultScreens(void)
-{
-    int i;
-
-    for (i = 0; i < MAXSCREENS; i++)
-    {
-	vfbScreens[i].scrnum = i;
-	vfbScreens[i].width  = VFB_DEFAULT_WIDTH;
-	vfbScreens[i].height = VFB_DEFAULT_HEIGHT;
-	vfbScreens[i].depth  = VFB_DEFAULT_DEPTH;
-	vfbScreens[i].blackPixel = VFB_DEFAULT_BLACKPIXEL;
-	vfbScreens[i].whitePixel = VFB_DEFAULT_WHITEPIXEL;
-	vfbScreens[i].lineBias = VFB_DEFAULT_LINEBIAS;
-	vfbScreens[i].pfbMemory = NULL;
-    }
-    vfbNumScreens = 1;
-}
-
 static int
 vfbBitsPerPixel(int depth)
 {
@@ -267,14 +254,20 @@ int
 ddxProcessArgument(int argc, char *argv[], int i)
 {
     static Bool firstTime = TRUE;
+    static int lastScreen = -1;
+    vfbScreenInfo *currentScreen;
 
     if (firstTime)
     {
-	vfbInitializeDefaultScreens();
 	vfbInitializePixmapDepths();
         firstTime = FALSE;
     }
 
+    if (lastScreen == -1)
+	currentScreen = &defaultScreenInfo;
+    else
+	currentScreen = &vfbScreens[lastScreen];
+
 #define CHECK_FOR_REQUIRED_ARGUMENTS(num) \
     if (((i + num) >= argc) || (!argv[i + num])) {                      \
       ErrorF("Required argument to %s not specified\n", argv[i]);       \
@@ -287,13 +280,23 @@ ddxProcessArgument(int argc, char *argv[], int i)
 	int screenNum;
 	CHECK_FOR_REQUIRED_ARGUMENTS(2);
 	screenNum = atoi(argv[i+1]);
-	if (screenNum < 0 || screenNum >= MAXSCREENS)
+	if (screenNum < 0)
 	{
 	    ErrorF("Invalid screen number %d\n", screenNum);
 	    UseMsg();
 	    FatalError("Invalid screen number %d passed to -screen\n",
 		       screenNum);
 	}
+
+	if (vfbNumScreens <= screenNum)
+	{
+	    vfbScreens = xrealloc(vfbScreens, sizeof(*vfbScreens) * (screenNum + 1));
+	    if (!vfbScreens)
+		FatalError("Not enough memory for screen %d\n", screenNum);
+	    for (; vfbNumScreens <= screenNum; ++vfbNumScreens)
+		vfbScreens[vfbNumScreens] = defaultScreenInfo;
+	}
+
 	if (3 != sscanf(argv[i+2], "%dx%dx%d",
 			&vfbScreens[screenNum].width,
 			&vfbScreens[screenNum].height,
@@ -305,8 +308,6 @@ ddxProcessArgument(int argc, char *argv[], int i)
 		   argv[i+2], screenNum);
 	}
 
-	if (screenNum >= vfbNumScreens)
-	    vfbNumScreens = screenNum + 1;
 	lastScreen = screenNum;
 	return 3;
     }
@@ -348,61 +349,22 @@ ddxProcessArgument(int argc, char *argv[], int i)
 
     if (strcmp (argv[i], "-blackpixel") == 0)	/* -blackpixel n */
     {
-	Pixel pix;
 	CHECK_FOR_REQUIRED_ARGUMENTS(1);
-	pix = atoi(argv[++i]);
-	if (-1 == lastScreen)
-	{
-	    int i;
-	    for (i = 0; i < MAXSCREENS; i++)
-	    {
-		vfbScreens[i].blackPixel = pix;
-	    }
-	}
-	else
-	{
-	    vfbScreens[lastScreen].blackPixel = pix;
-	}
+	currentScreen->blackPixel = atoi(argv[++i]);
 	return 2;
     }
 
     if (strcmp (argv[i], "-whitepixel") == 0)	/* -whitepixel n */
     {
-	Pixel pix;
 	CHECK_FOR_REQUIRED_ARGUMENTS(1);
-	pix = atoi(argv[++i]);
-	if (-1 == lastScreen)
-	{
-	    int i;
-	    for (i = 0; i < MAXSCREENS; i++)
-	    {
-		vfbScreens[i].whitePixel = pix;
-	    }
-	}
-	else
-	{
-	    vfbScreens[lastScreen].whitePixel = pix;
-	}
+	currentScreen->whitePixel = atoi(argv[++i]);
 	return 2;
     }
 
     if (strcmp (argv[i], "-linebias") == 0)	/* -linebias n */
     {
-	unsigned int linebias;
 	CHECK_FOR_REQUIRED_ARGUMENTS(1);
-	linebias = atoi(argv[++i]);
-	if (-1 == lastScreen)
-	{
-	    int i;
-	    for (i = 0; i < MAXSCREENS; i++)
-	    {
-		vfbScreens[i].lineBias = linebias;
-	    }
-	}
-	else
-	{
-	    vfbScreens[lastScreen].lineBias = linebias;
-	}
+	currentScreen->lineBias = atoi(argv[++i]);
 	return 2;
     }
 
@@ -427,14 +389,18 @@ ddxProcessArgument(int argc, char *argv[], int i)
     return 0;
 }
 
-static ColormapPtr InstalledMaps[MAXSCREENS];
+static int cmapScrPrivateKeyIndex;
+static DevPrivateKey cmapScrPrivateKey = &cmapScrPrivateKeyIndex;
+
+#define GetInstalledColormap(s) ((ColormapPtr) dixLookupPrivate(&(s)->devPrivates, cmapScrPrivateKey))
+#define SetInstalledColormap(s,c) (dixSetPrivate(&(s)->devPrivates, cmapScrPrivateKey, c))
 
 static int
 vfbListInstalledColormaps(ScreenPtr pScreen, Colormap *pmaps)
 {
     /* By the time we are processing requests, we can guarantee that there
      * is always a colormap installed */
-    *pmaps = InstalledMaps[pScreen->myNum]->mid;
+    *pmaps = GetInstalledColormap(pScreen)->mid;
     return (1);
 }
 
@@ -442,8 +408,7 @@ vfbListInstalledColormaps(ScreenPtr pScreen, Colormap *pmaps)
 static void
 vfbInstallColormap(ColormapPtr pmap)
 {
-    int index = pmap->pScreen->myNum;
-    ColormapPtr oldpmap = InstalledMaps[index];
+    ColormapPtr oldpmap = GetInstalledColormap(pmap->pScreen);
 
     if (pmap != oldpmap)
     {
@@ -459,7 +424,7 @@ vfbInstallColormap(ColormapPtr pmap)
 	if(oldpmap != (ColormapPtr)None)
 	    WalkTree(pmap->pScreen, TellLostMap, (char *)&oldpmap->mid);
 	/* Install pmap */
-	InstalledMaps[index] = pmap;
+	SetInstalledColormap(pmap->pScreen, pmap);
 	WalkTree(pmap->pScreen, TellGainedMap, (char *)&pmap->mid);
 
 	entries = pmap->pVisual->ColormapEntries;
@@ -500,7 +465,7 @@ vfbInstallColormap(ColormapPtr pmap)
 static void
 vfbUninstallColormap(ColormapPtr pmap)
 {
-    ColormapPtr curpmap = InstalledMaps[pmap->pScreen->myNum];
+    ColormapPtr curpmap = GetInstalledColormap(pmap->pScreen);
 
     if(pmap == curpmap)
     {
@@ -521,7 +486,7 @@ vfbStoreColors(ColormapPtr pmap, int ndef, xColorItem *pdefs)
     XWDColor *pXWDCmap;
     int i;
 
-    if (pmap != InstalledMaps[pmap->pScreen->myNum])
+    if (pmap != GetInstalledColormap(pmap->pScreen))
     {
 	return;
     }
@@ -595,7 +560,7 @@ vfbAllocateMmappedFramebuffer(vfbScreenInfoPtr pvfb)
     char dummyBuffer[DUMMY_BUFFER_SIZE];
     int currentFileSize, writeThisTime;
 
-    sprintf(pvfb->mmap_file, "%s/Xvfb_screen%d", pfbdir, pvfb->scrnum);
+    sprintf(pvfb->mmap_file, "%s/Xvfb_screen%d", pfbdir, (int) (pvfb - vfbScreens));
     if (-1 == (pvfb->mmap_fd = open(pvfb->mmap_file, O_CREAT|O_RDWR, 0666)))
     {
 	perror("open");
@@ -668,7 +633,7 @@ vfbAllocateSharedMemoryFramebuffer(vfbScreenInfoPtr pvfb)
 	return;
     }
 
-    ErrorF("screen %d shmid %d\n", pvfb->scrnum, pvfb->shmid);
+    ErrorF("screen %d shmid %d\n", (int) (pvfb - vfbScreens), pvfb->shmid);
 }
 #endif /* HAS_SHM */
 
@@ -830,10 +795,10 @@ vfbCloseScreen(int index, ScreenPtr pScreen)
 
     /*
      * XXX probably lots of stuff to clean.  For now,
-     * clear InstalledMaps[] so that server reset works correctly.
+     * clear installed colormaps so that server reset works correctly.
      */
-    for (i = 0; i < MAXSCREENS; i++)
-	InstalledMaps[i] = NULL;
+    for (i = 0; i < screenInfo.numScreens; i++)
+	SetInstalledColormap(screenInfo.screens[i], NULL);
 
     return pScreen->CloseScreen(index, pScreen);
 }
@@ -992,6 +957,11 @@ InitOutput(ScreenInfo *screenInfo, int argc, char **argv)
 
     /* initialize screens */
 
+    if (vfbNumScreens < 1)
+    {
+	vfbScreens = &defaultScreenInfo;
+	vfbNumScreens = 1;
+    }
     for (i = 0; i < vfbNumScreens; i++)
     {
 	if (-1 == AddScreen(vfbScreenInit, argc, argv))
diff --git a/xorg-server/hw/xfree86/common/xf86DGA.c b/xorg-server/hw/xfree86/common/xf86DGA.c
index 804fd37c1..1a1032786 100644
--- a/xorg-server/hw/xfree86/common/xf86DGA.c
+++ b/xorg-server/hw/xfree86/common/xf86DGA.c
@@ -731,7 +731,7 @@ DGAInstallCmap(ColormapPtr cmap)
     /* We rely on the extension to check that DGA is active */ 
 
     if(!pScreenPriv->dgaColormap) 
-	pScreenPriv->savedColormap = miInstalledMaps[pScreen->myNum];
+	pScreenPriv->savedColormap = GetInstalledmiColormap(pScreen);
 
     pScreenPriv->dgaColormap = cmap;    
 
diff --git a/xorg-server/hw/xfree86/common/xf86Init.c b/xorg-server/hw/xfree86/common/xf86Init.c
index 03a29ea0f..55d7a6209 100644
--- a/xorg-server/hw/xfree86/common/xf86Init.c
+++ b/xorg-server/hw/xfree86/common/xf86Init.c
@@ -552,9 +552,6 @@ InitOutput(ScreenInfo *pScreenInfo, int argc, char **argv)
   xf86Initialising = TRUE;
 
   if (serverGeneration == 1) {
-
-    pScreenInfo->numScreens = 0;
-
     if ((xf86ServerName = strrchr(argv[0], '/')) != 0)
       xf86ServerName++;
     else
diff --git a/xorg-server/hw/xfree86/common/xf86Module.h b/xorg-server/hw/xfree86/common/xf86Module.h
index bbf5786c9..d61758f78 100644
--- a/xorg-server/hw/xfree86/common/xf86Module.h
+++ b/xorg-server/hw/xfree86/common/xf86Module.h
@@ -82,9 +82,9 @@ typedef enum {
  * mask is 0xFFFF0000.
  */
 #define ABI_ANSIC_VERSION	SET_ABI_VERSION(0, 4)
-#define ABI_VIDEODRV_VERSION	SET_ABI_VERSION(7, 0)
-#define ABI_XINPUT_VERSION	SET_ABI_VERSION(9, 0)
-#define ABI_EXTENSION_VERSION	SET_ABI_VERSION(3, 0)
+#define ABI_VIDEODRV_VERSION	SET_ABI_VERSION(8, 0)
+#define ABI_XINPUT_VERSION	SET_ABI_VERSION(10, 0)
+#define ABI_EXTENSION_VERSION	SET_ABI_VERSION(4, 0)
 #define ABI_FONT_VERSION	SET_ABI_VERSION(0, 6)
 
 #define MODINFOSTRING1	0xef23fdc5
diff --git a/xorg-server/hw/xfree86/common/xf86Xinput.c b/xorg-server/hw/xfree86/common/xf86Xinput.c
index dba3370f3..a1a5527f4 100644
--- a/xorg-server/hw/xfree86/common/xf86Xinput.c
+++ b/xorg-server/hw/xfree86/common/xf86Xinput.c
@@ -825,7 +825,7 @@ NewInputDeviceRequest (InputOption *options, InputAttributes *attrs,
     }
 
     if (!idev->driver || !idev->identifier) {
-        xf86Msg(X_ERROR, "No input driver/identifier specified (ignoring)\n");
+        xf86Msg(X_INFO, "No input driver/identifier specified (ignoring)\n");
         rval = BadRequest;
         goto unwind;
     }
diff --git a/xorg-server/hw/xfree86/common/xf86cmap.c b/xorg-server/hw/xfree86/common/xf86cmap.c
index f60d96e7d..e266ffb6d 100644
--- a/xorg-server/hw/xfree86/common/xf86cmap.c
+++ b/xorg-server/hw/xfree86/common/xf86cmap.c
@@ -63,10 +63,10 @@
 #define SCREEN_EPILOGUE(pScreen, field, wrapper)\
     ((pScreen)->field = wrapper)
 
-#define LOAD_PALETTE(pmap, index) \
-    ((pmap == miInstalledMaps[index]) && \
+#define LOAD_PALETTE(pmap) \
+    ((pmap == GetInstalledmiColormap(pmap->pScreen)) && \
      ((pScreenPriv->flags & CMAP_LOAD_EVEN_IF_OFFSCREEN) || \
-      xf86Screens[index]->vtSema || pScreenPriv->isDGAmode))
+      xf86Screens[pmap->pScreen->myNum]->vtSema || pScreenPriv->isDGAmode))
 
 
 typedef struct _CMapLink {
@@ -221,7 +221,7 @@ Bool xf86HandleColormaps(
     }
 
     /* Force the initial map to be loaded */
-    miInstalledMaps[pScreen->myNum] = NULL;
+    SetInstalledmiColormap(pScreen, NULL);
     CMapInstallColormap(pDefMap);
     return TRUE;
 }
@@ -425,11 +425,10 @@ static void
 CMapInstallColormap(ColormapPtr pmap)
 {
     ScreenPtr 	  pScreen = pmap->pScreen;
-    int		  index = pScreen->myNum;
     CMapScreenPtr pScreenPriv = (CMapScreenPtr)dixLookupPrivate(
 	&pScreen->devPrivates, CMapScreenKey);
 
-    if (pmap == miInstalledMaps[index])
+    if (pmap == GetInstalledmiColormap(pmap->pScreen))
 	return;
 
     pScreen->InstallColormap = pScreenPriv->InstallColormap;
@@ -438,15 +437,15 @@ CMapInstallColormap(ColormapPtr pmap)
 
     /* Important. We let the lower layers, namely DGA, 
        overwrite the choice of Colormap to install */
-    if (miInstalledMaps[index])
-	pmap = miInstalledMaps[index];
+    if (GetInstalledmiColormap(pmap->pScreen))
+	pmap = GetInstalledmiColormap(pmap->pScreen);
 
     if (!(pScreenPriv->flags & CMAP_PALETTED_TRUECOLOR) &&
 	 (pmap->pVisual->class == TrueColor) &&
 	 CMapColormapUseMax(pmap->pVisual, pScreenPriv))
 	return;
 
-    if(LOAD_PALETTE(pmap, index))
+    if(LOAD_PALETTE(pmap))
 	CMapReinstallMap(pmap);
 }
 
@@ -461,8 +460,8 @@ CMapEnterVT(int index, int flags)
 	&pScreen->devPrivates, CMapScreenKey);
 
     if((*pScreenPriv->EnterVT)(index, flags)) {
-	if(miInstalledMaps[index])
-	    CMapReinstallMap(miInstalledMaps[index]);
+	if(GetInstalledmiColormap(pScreen))
+	    CMapReinstallMap(GetInstalledmiColormap(pScreen));
 	return TRUE;
     }
     return FALSE;
@@ -477,8 +476,8 @@ CMapSwitchMode(int index, DisplayModePtr mode, int flags)
 	&pScreen->devPrivates, CMapScreenKey);
 
     if((*pScreenPriv->SwitchMode)(index, mode, flags)) {
-	if(miInstalledMaps[index])
-	    CMapReinstallMap(miInstalledMaps[index]);
+	if(GetInstalledmiColormap(pScreen))
+	    CMapReinstallMap(GetInstalledmiColormap(pScreen));
 	return TRUE;
     }
     return FALSE;
@@ -497,9 +496,9 @@ CMapSetDGAMode(int index, int num, DGADevicePtr dev)
 
     pScreenPriv->isDGAmode = DGAActive(index);
 
-    if(!pScreenPriv->isDGAmode && miInstalledMaps[index] 
+    if(!pScreenPriv->isDGAmode && GetInstalledmiColormap(pScreen)
          && xf86Screens[pScreen->myNum]->vtSema)
-	CMapReinstallMap(miInstalledMaps[index]);
+	CMapReinstallMap(GetInstalledmiColormap(pScreen));
 
     return ret;
 }
@@ -649,7 +648,7 @@ CMapRefreshColors(ColormapPtr pmap, int defs, int* indices)
     }
 
 
-    if(LOAD_PALETTE(pmap, pmap->pScreen->myNum))
+    if(LOAD_PALETTE(pmap))
 	(*pScrn->LoadPalette)(pScreenPriv->pScrn, defs, indices,
  					colors, pmap->pVisual);
 
@@ -802,7 +801,7 @@ CMapSetOverscan(ColormapPtr pmap, int defs, int *indices)
     }
     if (newOverscan) {
 	pColPriv->overscan = overscan;
-	if (LOAD_PALETTE(pmap, pmap->pScreen->myNum)) {
+	if (LOAD_PALETTE(pmap)) {
 #ifdef DEBUGOVERSCAN
 	    ErrorF("SetOverscan() called from CmapSetOverscan\n");
 #endif
@@ -929,10 +928,10 @@ CMapChangeGamma(
 	pLink = pLink->next;
     }
 
-    if(miInstalledMaps[pScreen->myNum] && 
+    if(GetInstalledmiColormap(pScreen) &&
        ((pScreenPriv->flags & CMAP_LOAD_EVEN_IF_OFFSCREEN) ||
 	pScrn->vtSema || pScreenPriv->isDGAmode)) {
-	ColormapPtr pMap = miInstalledMaps[pScreen->myNum];
+	ColormapPtr pMap = GetInstalledmiColormap(pScreen);
 
 	if (!(pScreenPriv->flags & CMAP_PALETTED_TRUECOLOR) &&
 	    (pMap->pVisual->class == TrueColor) &&
@@ -951,9 +950,9 @@ CMapChangeGamma(
 	    if(pLink) {
 		/* need to trick CMapRefreshColors() into thinking 
 		   this is the currently installed map */
-		miInstalledMaps[pScreen->myNum] = pLink->cmap;
+		SetInstalledmiColormap(pScreen, pLink->cmap);
 		CMapReinstallMap(pLink->cmap);
-		miInstalledMaps[pScreen->myNum] = pMap;
+		SetInstalledmiColormap(pScreen, pMap);
 	    }
 	} else
 	    CMapReinstallMap(pMap);
@@ -1035,10 +1034,10 @@ xf86ChangeGammaRamp(
         pLink = pLink->next;
     }
 
-    if(miInstalledMaps[pScreen->myNum] &&
+    if(GetInstalledmiColormap(pScreen) &&
        ((pScreenPriv->flags & CMAP_LOAD_EVEN_IF_OFFSCREEN) ||
         pScrn->vtSema || pScreenPriv->isDGAmode)) {
-        ColormapPtr pMap = miInstalledMaps[pScreen->myNum];
+        ColormapPtr pMap = GetInstalledmiColormap(pScreen);
 
         if (!(pScreenPriv->flags & CMAP_PALETTED_TRUECOLOR) &&
             (pMap->pVisual->class == TrueColor) &&
@@ -1057,9 +1056,9 @@ xf86ChangeGammaRamp(
             if(pLink) {
                 /* need to trick CMapRefreshColors() into thinking
                    this is the currently installed map */
-                miInstalledMaps[pScreen->myNum] = pLink->cmap;
+                SetInstalledmiColormap(pScreen, pLink->cmap);
                 CMapReinstallMap(pLink->cmap);
-                miInstalledMaps[pScreen->myNum] = pMap;
+                SetInstalledmiColormap(pScreen, pMap);
             }
         } else
             CMapReinstallMap(pMap);
diff --git a/xorg-server/hw/xfree86/common/xf86xv.c b/xorg-server/hw/xfree86/common/xf86xv.c
index bdcc4fc2b..2cc2f6093 100644
--- a/xorg-server/hw/xfree86/common/xf86xv.c
+++ b/xorg-server/hw/xfree86/common/xf86xv.c
@@ -186,7 +186,9 @@ typedef struct {
    int num;
 } OffscreenImageRec;
 
-static OffscreenImageRec OffscreenImages[MAXSCREENS];
+static int OffscreenPrivateKeyIndex;
+static DevPrivateKey OffscreenPrivateKey = &OffscreenPrivateKeyIndex;
+#define GetOffscreenImage(pScreen) ((OffscreenImageRec *) dixLookupPrivate(&(pScreen)->devPrivates, OffscreenPrivateKey))
 
 Bool
 xf86XVRegisterOffscreenImages(
@@ -194,9 +196,18 @@ xf86XVRegisterOffscreenImages(
     XF86OffscreenImagePtr images,
     int num
 ){
-    OffscreenImages[pScreen->myNum].num = num;
-    OffscreenImages[pScreen->myNum].images = images;
-
+    OffscreenImageRec *OffscreenImage;
+    /* This function may be called before xf86XVScreenInit, so there's
+     * no better place than this to call dixRequestPrivate to ensure we
+     * have space reserved. After the first call it is a no-op. */
+    if(!dixRequestPrivate(OffscreenPrivateKey, sizeof(OffscreenImageRec)) ||
+       !(OffscreenImage = GetOffscreenImage(pScreen)))
+        /* Every X.org driver assumes this function always succeeds, so
+         * just die on allocation failure. */
+        FatalError("Could not allocate private storage for XV offscreen images.\n");
+
+    OffscreenImage->num = num;
+    OffscreenImage->images = images;
     return TRUE;
 }
 
@@ -205,8 +216,9 @@ xf86XVQueryOffscreenImages(
    ScreenPtr pScreen,
    int *num
 ){
-   *num = OffscreenImages[pScreen->myNum].num;
-   return OffscreenImages[pScreen->myNum].images;
+    OffscreenImageRec *OffscreenImage = GetOffscreenImage(pScreen);
+    *num = OffscreenImage->num;
+    return OffscreenImage->images;
 }
 
 
@@ -1177,9 +1189,6 @@ xf86XVCloseScreen(int i, ScreenPtr pScreen)
   XvAdaptorPtr pa;
   int c;
 
-  /* Clear offscreen images */
-  memset(&OffscreenImages[pScreen->myNum], 0, sizeof(OffscreenImages[0]));
-
   if(!ScreenPriv) return TRUE;
 
   if(ScreenPriv->videoGC) {
diff --git a/xorg-server/hw/xfree86/dixmods/extmod/xf86dga2.c b/xorg-server/hw/xfree86/dixmods/extmod/xf86dga2.c
index 5367bcc42..038551467 100644
--- a/xorg-server/hw/xfree86/dixmods/extmod/xf86dga2.c
+++ b/xorg-server/hw/xfree86/dixmods/extmod/xf86dga2.c
@@ -57,12 +57,12 @@ static void XDGAResetProc(ExtensionEntry *extEntry);
 
 static void DGAClientStateChange (CallbackListPtr*, pointer, pointer);
 
-static ClientPtr DGAClients[MAXSCREENS];
-
 unsigned char DGAReqCode = 0;
 int DGAErrorBase;
 int DGAEventBase;
 
+static int DGAScreenPrivateKeyIndex;
+static DevPrivateKey DGAScreenPrivateKey = &DGAScreenPrivateKeyIndex;
 static int DGAClientPrivateKeyIndex;
 static DevPrivateKey DGAClientPrivateKey = &DGAClientPrivateKeyIndex;
 static int DGACallbackRefCount = 0;
@@ -73,6 +73,11 @@ typedef struct {
     int		minor;
 } DGAPrivRec, *DGAPrivPtr;
 
+#define DGA_GETCLIENT(idx) ((ClientPtr) \
+    dixLookupPrivate(&screenInfo.screens[idx]->devPrivates, DGAScreenPrivateKey))
+#define DGA_SETCLIENT(idx,p) \
+    dixSetPrivate(&screenInfo.screens[idx]->devPrivates, DGAScreenPrivateKey, p)
+
 #define DGA_GETPRIV(c) ((DGAPrivPtr) \
     dixLookupPrivate(&(c)->devPrivates, DGAClientPrivateKey))
 #define DGA_SETPRIV(c,p) \
@@ -93,9 +98,6 @@ XFree86DGAExtensionInit(INITARGS)
 				StandardMinorOpcode))) {
 	int i;
 
-	for(i = 0; i < MAXSCREENS; i++)
-	     DGAClients[i] = NULL;
-
 	DGAReqCode = (unsigned char)extEntry->base;
 	DGAErrorBase = extEntry->errorBase;
 	DGAEventBase = extEntry->eventBase;
@@ -282,7 +284,7 @@ DGAClientStateChange (
     int i;
 
     for(i = 0; i < screenInfo.numScreens; i++) {
-	if(DGAClients[i] == pci->client) {
+	if(DGA_GETCLIENT(i) == pci->client) {
 	   client = pci->client;
 	   break;
 	}
@@ -294,7 +296,7 @@ DGAClientStateChange (
 	XDGAModeRec mode;
 	PixmapPtr pPix;
 
-	DGAClients[i] = NULL;
+	DGA_SETCLIENT(i, NULL);
 	DGASelectInput(i, NULL, 0);
 	DGASetMode(i, 0, &mode, &pPix);
 
@@ -311,10 +313,12 @@ ProcXDGASetMode(ClientPtr client)
     XDGAModeRec mode;
     xXDGAModeInfo info;
     PixmapPtr pPix;
+    ClientPtr owner;
     int size;
 
     if (stuff->screen > screenInfo.numScreens)
         return BadValue;
+    owner = DGA_GETCLIENT(stuff->screen);
 
     REQUEST_SIZE_MATCH(xXDGASetModeReq);
     rep.type = X_Reply;
@@ -326,16 +330,15 @@ ProcXDGASetMode(ClientPtr client)
     if (!DGAAvailable(stuff->screen))
         return DGAErrorBase + XF86DGANoDirectVideoMode;
 
-    if(DGAClients[stuff->screen] &&
-      (DGAClients[stuff->screen] != client))
+    if(owner && owner != client)
         return DGAErrorBase + XF86DGANoDirectVideoMode;
 
     if(!stuff->mode) {
-	if(DGAClients[stuff->screen]) {
+	if(owner) {
 	  if(--DGACallbackRefCount == 0)
 	    DeleteCallback(&ClientStateCallback, DGAClientStateChange, NULL);
 	}
-	DGAClients[stuff->screen] = NULL;
+	DGA_SETCLIENT(stuff->screen, NULL);
 	DGASelectInput(stuff->screen, NULL, 0);
 	DGASetMode(stuff->screen, 0, &mode, &pPix);
 	WriteToClient(client, sz_xXDGASetModeReply, (char*)&rep);
@@ -345,12 +348,12 @@ ProcXDGASetMode(ClientPtr client)
     if(Success != DGASetMode(stuff->screen, stuff->mode, &mode, &pPix))
 	return BadValue;
 
-    if(!DGAClients[stuff->screen]) {
+    if(!owner) {
 	if(DGACallbackRefCount++ == 0)
 	   AddCallback (&ClientStateCallback, DGAClientStateChange, NULL);
     }
 
-    DGAClients[stuff->screen] = client;
+    DGA_SETCLIENT(stuff->screen, client);
 
     if(pPix) {
 	if(AddResource(stuff->pid, RT_PIXMAP, (pointer)(pPix))) {
@@ -405,7 +408,7 @@ ProcXDGASetViewport(ClientPtr client)
     if (stuff->screen > screenInfo.numScreens)
         return BadValue;
 
-    if(DGAClients[stuff->screen] != client)
+    if(DGA_GETCLIENT(stuff->screen) != client)
         return DGAErrorBase + XF86DGADirectNotActivated;
 
     REQUEST_SIZE_MATCH(xXDGASetViewportReq);
@@ -425,7 +428,7 @@ ProcXDGAInstallColormap(ClientPtr client)
     if (stuff->screen > screenInfo.numScreens)
         return BadValue;
 
-    if(DGAClients[stuff->screen] != client)
+    if(DGA_GETCLIENT(stuff->screen) != client)
         return DGAErrorBase + XF86DGADirectNotActivated;
 
     REQUEST_SIZE_MATCH(xXDGAInstallColormapReq);
@@ -451,12 +454,12 @@ ProcXDGASelectInput(ClientPtr client)
     if (stuff->screen > screenInfo.numScreens)
         return BadValue;
 
-    if(DGAClients[stuff->screen] != client)
+    if(DGA_GETCLIENT(stuff->screen) != client)
         return DGAErrorBase + XF86DGADirectNotActivated;
 
     REQUEST_SIZE_MATCH(xXDGASelectInputReq);
 
-    if(DGAClients[stuff->screen] == client)
+    if(DGA_GETCLIENT(stuff->screen) == client)
 	DGASelectInput(stuff->screen, client, stuff->mask);
 
     return (client->noClientException);
@@ -471,7 +474,7 @@ ProcXDGAFillRectangle(ClientPtr client)
     if (stuff->screen > screenInfo.numScreens)
         return BadValue;
 
-    if(DGAClients[stuff->screen] != client)
+    if(DGA_GETCLIENT(stuff->screen) != client)
         return DGAErrorBase + XF86DGADirectNotActivated;
 
     REQUEST_SIZE_MATCH(xXDGAFillRectangleReq);
@@ -491,7 +494,7 @@ ProcXDGACopyArea(ClientPtr client)
     if (stuff->screen > screenInfo.numScreens)
         return BadValue;
 
-    if(DGAClients[stuff->screen] != client)
+    if(DGA_GETCLIENT(stuff->screen) != client)
         return DGAErrorBase + XF86DGADirectNotActivated;
 
     REQUEST_SIZE_MATCH(xXDGACopyAreaReq);
@@ -512,7 +515,7 @@ ProcXDGACopyTransparentArea(ClientPtr client)
     if (stuff->screen > screenInfo.numScreens)
         return BadValue;
 
-    if(DGAClients[stuff->screen] != client)
+    if(DGA_GETCLIENT(stuff->screen) != client)
         return DGAErrorBase + XF86DGADirectNotActivated;
 
     REQUEST_SIZE_MATCH(xXDGACopyTransparentAreaReq);
@@ -534,7 +537,7 @@ ProcXDGAGetViewportStatus(ClientPtr client)
     if (stuff->screen > screenInfo.numScreens)
         return BadValue;
 
-    if(DGAClients[stuff->screen] != client)
+    if(DGA_GETCLIENT(stuff->screen) != client)
         return DGAErrorBase + XF86DGADirectNotActivated;
 
     REQUEST_SIZE_MATCH(xXDGAGetViewportStatusReq);
@@ -557,7 +560,7 @@ ProcXDGASync(ClientPtr client)
     if (stuff->screen > screenInfo.numScreens)
         return BadValue;
 
-    if(DGAClients[stuff->screen] != client)
+    if(DGA_GETCLIENT(stuff->screen) != client)
         return DGAErrorBase + XF86DGADirectNotActivated;
 
     REQUEST_SIZE_MATCH(xXDGASyncReq);
@@ -602,7 +605,7 @@ ProcXDGAChangePixmapMode(ClientPtr client)
     if (stuff->screen > screenInfo.numScreens)
         return BadValue;
 
-    if(DGAClients[stuff->screen] != client)
+    if(DGA_GETCLIENT(stuff->screen) != client)
         return DGAErrorBase + XF86DGADirectNotActivated;
 
     REQUEST_SIZE_MATCH(xXDGAChangePixmapModeReq);
@@ -633,7 +636,7 @@ ProcXDGACreateColormap(ClientPtr client)
     if (stuff->screen > screenInfo.numScreens)
         return BadValue;
 
-    if(DGAClients[stuff->screen] != client)
+    if(DGA_GETCLIENT(stuff->screen) != client)
         return DGAErrorBase + XF86DGADirectNotActivated;
 
     REQUEST_SIZE_MATCH(xXDGACreateColormapReq);
@@ -713,18 +716,19 @@ ProcXF86DGADirectVideo(ClientPtr client)
     int num;
     PixmapPtr pix;
     XDGAModeRec mode;
+    ClientPtr owner;
     REQUEST(xXF86DGADirectVideoReq);
 
     if (stuff->screen > screenInfo.numScreens)
 	return BadValue;
+    owner = DGA_GETCLIENT(stuff->screen);
 
     REQUEST_SIZE_MATCH(xXF86DGADirectVideoReq);
 
     if (!DGAAvailable(stuff->screen))
 	return DGAErrorBase + XF86DGANoDirectVideoMode;
 
-    if (DGAClients[stuff->screen] &&
-        (DGAClients[stuff->screen] != client))
+    if (owner && owner != client)
         return DGAErrorBase + XF86DGANoDirectVideoMode;
 
     if (stuff->enable & XF86DGADirectGraphics) {
@@ -743,19 +747,19 @@ ProcXF86DGADirectVideo(ClientPtr client)
     /* We need to track the client and attach the teardown callback */
     if (stuff->enable &
 	(XF86DGADirectGraphics | XF86DGADirectKeyb | XF86DGADirectMouse)) {
-	if (!DGAClients[stuff->screen]) {
+	if (!owner) {
 	    if (DGACallbackRefCount++ == 0)
 		AddCallback (&ClientStateCallback, DGAClientStateChange, NULL);
 	}
 
-	DGAClients[stuff->screen] = client;
+	DGA_SETCLIENT(stuff->screen, client);
     } else {
-	if (DGAClients[stuff->screen]) {
+	if (owner) {
 	    if (--DGACallbackRefCount == 0)
 		DeleteCallback(&ClientStateCallback, DGAClientStateChange, NULL);
 	}
 
-	DGAClients[stuff->screen] = NULL;
+	DGA_SETCLIENT(stuff->screen, NULL);
     }
 
     return (client->noClientException);
@@ -800,7 +804,7 @@ ProcXF86DGASetViewPort(ClientPtr client)
     if (stuff->screen > screenInfo.numScreens)
 	return BadValue;
 
-    if (DGAClients[stuff->screen] != client)
+    if (DGA_GETCLIENT(stuff->screen) != client)
         return DGAErrorBase + XF86DGADirectNotActivated;
 
     REQUEST_SIZE_MATCH(xXF86DGASetViewPortReq);
@@ -864,7 +868,7 @@ ProcXF86DGAInstallColormap(ClientPtr client)
     if (stuff->screen > screenInfo.numScreens)
 	return BadValue;
 
-    if (DGAClients[stuff->screen] != client)
+    if (DGA_GETCLIENT(stuff->screen) != client)
         return DGAErrorBase + XF86DGADirectNotActivated;
 
     REQUEST_SIZE_MATCH(xXF86DGAInstallColormapReq);
@@ -913,7 +917,7 @@ ProcXF86DGAViewPortChanged(ClientPtr client)
     if (stuff->screen > screenInfo.numScreens)
 	return BadValue;
 
-    if (DGAClients[stuff->screen] != client)
+    if (DGA_GETCLIENT(stuff->screen) != client)
         return DGAErrorBase + XF86DGADirectNotActivated;
 
     REQUEST_SIZE_MATCH(xXF86DGAViewPortChangedReq);
diff --git a/xorg-server/hw/xfree86/doc/sgml/DESIGN.sgml b/xorg-server/hw/xfree86/doc/sgml/DESIGN.sgml
index 5beff653f..e95df7999 100644
--- a/xorg-server/hw/xfree86/doc/sgml/DESIGN.sgml
+++ b/xorg-server/hw/xfree86/doc/sgml/DESIGN.sgml
@@ -1,5 +1,5 @@
 <!DOCTYPE linuxdoc PUBLIC "-//Xorg//DTD linuxdoc//EN" [
- <!ENTITY % defs SYSTEM "defs.ent"> %defs;
+ <!ENTITY % defs SYSTEM "X11/defs.ent"> %defs;
  <!-- config file keyword markup -->
  <!ENTITY s.key STARTTAG "bf">
  <!ENTITY e.key ENDTAG "bf">
diff --git a/xorg-server/hw/xfree86/ramdac/xf86Cursor.c b/xorg-server/hw/xfree86/ramdac/xf86Cursor.c
index f5f087314..346e99490 100644
--- a/xorg-server/hw/xfree86/ramdac/xf86Cursor.c
+++ b/xorg-server/hw/xfree86/ramdac/xf86Cursor.c
@@ -312,6 +312,8 @@ xf86CursorSetCursor(DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCurs,
             xf86SetCursor(pScreen, NullCursor, x, y);
             ScreenPriv->isUp = FALSE;
         }
+	if (ScreenPriv->CurrentCursor)
+	    FreeCursor(ScreenPriv->CurrentCursor, None);
         ScreenPriv->CurrentCursor = NullCursor;
         return;
     }
diff --git a/xorg-server/hw/xfree86/vgahw/vgaCmap.c b/xorg-server/hw/xfree86/vgahw/vgaCmap.c
index 5bd38b468..06eeb4ce1 100644
--- a/xorg-server/hw/xfree86/vgahw/vgaCmap.c
+++ b/xorg-server/hw/xfree86/vgahw/vgaCmap.c
@@ -50,7 +50,7 @@ vgaListInstalledColormaps(pScreen, pmaps)
   /* By the time we are processing requests, we can guarantee that there
    * is always a colormap installed */
   
-  *pmaps = miInstalledMaps[pScreen->myNum]->mid;
+  *pmaps = GetInstalledmiColormap(pScreen)->mid;
   return(1);
 }
 
@@ -62,13 +62,13 @@ vgaGetInstalledColormaps(pScreen, pmaps)
   /* By the time we are processing requests, we can guarantee that there
    * is always a colormap installed */
   
-  *pmaps = miInstalledMaps[pScreen->myNum];
+  *pmaps = GetInstalledmiColormap(pScreen);
   return(1);
 }
 
 int vgaCheckColorMap(ColormapPtr pmap)
 {
-  return (pmap != miInstalledMaps[pmap->pScreen->myNum]);
+  return (pmap != GetInstalledmiColormap(pmap->pScreen));
 }
 
 
@@ -217,7 +217,7 @@ void
 vgaInstallColormap(pmap)
      ColormapPtr	pmap;
 {
-  ColormapPtr oldmap = miInstalledMaps[pmap->pScreen->myNum];
+  ColormapPtr oldmap = GetInstalledmiColormap(pmap->pScreen);
   int         entries;
   Pixel *     ppix;
   xrgb *      prgb;
@@ -242,7 +242,7 @@ vgaInstallColormap(pmap)
   if ( oldmap != NOMAPYET)
     WalkTree( pmap->pScreen, TellLostMap, &oldmap->mid);
 
-  miInstalledMaps[pmap->pScreen->myNum] = pmap;
+  SetInstalledmiColormap(pmap->pScreen, pmap);
 
   for ( i=0; i<entries; i++) ppix[i] = i;
 
@@ -273,13 +273,13 @@ vgaUninstallColormap(pmap)
 
   ColormapPtr defColormap;
   
-  if ( pmap != miInstalledMaps[pmap->pScreen->myNum] )
+  if ( pmap != GetInstalledmiColormap(pmap->pScreen))
     return;
 
   dixLookupResourceByType((pointer *)&defColormap, pmap->pScreen->defColormap,
 			  RT_COLORMAP, serverClient, DixInstallAccess);
 
-  if (defColormap == miInstalledMaps[pmap->pScreen->myNum])
+  if (defColormap == GetInstalledmiColormap(pmap->pScreen))
     return;
 
   (*pmap->pScreen->InstallColormap) (defColormap);
diff --git a/xorg-server/hw/xnest/Color.c b/xorg-server/hw/xnest/Color.c
index dc749478f..2e6de15e4 100644
--- a/xorg-server/hw/xnest/Color.c
+++ b/xorg-server/hw/xnest/Color.c
@@ -34,7 +34,11 @@ is" without express or implied warranty.
 #include "XNWindow.h"
 #include "Args.h"
 
-static ColormapPtr InstalledMaps[MAXSCREENS];
+static int cmapScrPrivateKeyIndex;
+static DevPrivateKey cmapScrPrivateKey = &cmapScrPrivateKeyIndex;
+
+#define GetInstalledColormap(s) ((ColormapPtr) dixLookupPrivate(&(s)->devPrivates, cmapScrPrivateKey))
+#define SetInstalledColormap(s,c) (dixSetPrivate(&(s)->devPrivates, cmapScrPrivateKey, c))
 
 Bool
 xnestCreateColormap(ColormapPtr pCmap)
@@ -332,11 +336,7 @@ xnestDirectUninstallColormaps(ScreenPtr pScreen)
 void
 xnestInstallColormap(ColormapPtr pCmap)
 {
-  int index;
-  ColormapPtr pOldCmap;
-  
-  index = pCmap->pScreen->myNum;
-  pOldCmap = InstalledMaps[index];
+  ColormapPtr pOldCmap = GetInstalledColormap(pCmap->pScreen);
   
   if(pCmap != pOldCmap)
     {
@@ -346,7 +346,7 @@ xnestInstallColormap(ColormapPtr pCmap)
       if(pOldCmap != (ColormapPtr)None)
 	WalkTree(pCmap->pScreen, TellLostMap, (pointer)&pOldCmap->mid);
       
-      InstalledMaps[index] = pCmap;
+      SetInstalledColormap(pCmap->pScreen, pCmap);
       WalkTree(pCmap->pScreen, TellGainedMap, (pointer)&pCmap->mid);
       
       xnestSetInstalledColormapWindows(pCmap->pScreen);
@@ -357,11 +357,7 @@ xnestInstallColormap(ColormapPtr pCmap)
 void
 xnestUninstallColormap(ColormapPtr pCmap)
 {
-  int index;
-  ColormapPtr pCurCmap;
-  
-  index = pCmap->pScreen->myNum;
-  pCurCmap = InstalledMaps[index];
+  ColormapPtr pCurCmap = GetInstalledColormap(pCmap->pScreen);
   
   if(pCmap == pCurCmap)
     {
@@ -382,7 +378,7 @@ int
 xnestListInstalledColormaps(ScreenPtr pScreen, Colormap *pCmapIDs)
 {
   if (xnestInstalledDefaultColormap) {
-    *pCmapIDs = InstalledMaps[pScreen->myNum]->mid;
+    *pCmapIDs = GetInstalledColormap(pScreen)->mid;
     return 1;
   }
   else
diff --git a/xorg-server/hw/xquartz/GL/indirect.c b/xorg-server/hw/xquartz/GL/indirect.c
index 70558ed20..ad9ebbdac 100644
--- a/xorg-server/hw/xquartz/GL/indirect.c
+++ b/xorg-server/hw/xquartz/GL/indirect.c
@@ -42,6 +42,8 @@
 #define GL_GLEXT_WUNDEF_SUPPORT
 
 #include <OpenGL/OpenGL.h>
+#include <OpenGL/gl.h>
+#include <OpenGL/glext.h>
 #include <OpenGL/CGLContext.h>
 
 /* These next few GL_EXT pre-processing blocks are to explicitly define 
diff --git a/xorg-server/hw/xquartz/GL/visualConfigs.c b/xorg-server/hw/xquartz/GL/visualConfigs.c
index bef27f048..cecc90265 100644
--- a/xorg-server/hw/xquartz/GL/visualConfigs.c
+++ b/xorg-server/hw/xquartz/GL/visualConfigs.c
@@ -35,9 +35,10 @@
 #include "dri.h"
 
 #include <OpenGL/OpenGL.h>
+#include <OpenGL/gl.h>
+#include <OpenGL/glext.h>
 #include <OpenGL/CGLContext.h>
 
-#include <GL/gl.h>
 #include <GL/glxproto.h>
 #include <windowstr.h>
 #include <resource.h>
diff --git a/xorg-server/hw/xquartz/xpr/x-list.c b/xorg-server/hw/xquartz/xpr/x-list.c
index 3596dd355..77c9309aa 100644
--- a/xorg-server/hw/xquartz/xpr/x-list.c
+++ b/xorg-server/hw/xquartz/xpr/x-list.c
@@ -97,6 +97,7 @@ X_PFX (list_prepend) (x_list *lst, void *data)
         int i;
 
         b = malloc (sizeof (x_list_block));
+        assert(b != NULL);
 
         for (i = 0; i < NODES_PER_BLOCK - 1; i++)
             b->l[i].next = &(b->l[i+1]);
diff --git a/xorg-server/hw/xwin/InitOutput.c b/xorg-server/hw/xwin/InitOutput.c
index df5f1f221..2cd7bab08 100644
--- a/xorg-server/hw/xwin/InitOutput.c
+++ b/xorg-server/hw/xwin/InitOutput.c
@@ -1,1175 +1,1165 @@
-

-/*

-

-Copyright 1993, 1998  The Open Group

-Copyright (C) Colin Harrison 2005-2008

-

-Permission to use, copy, modify, distribute, and sell this software and its

-documentation for any purpose is hereby granted without fee, provided that

-the above copyright notice appear in all copies and that both that

-copyright notice and this permission notice appear in supporting

-documentation.

-

-The above copyright notice and this permission notice shall be included

-in all copies or substantial portions of the Software.

-

-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

-IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR

-OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,

-ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

-OTHER DEALINGS IN THE SOFTWARE.

-

-Except as contained in this notice, the name of The Open Group shall

-not be used in advertising or otherwise to promote the sale, use or

-other dealings in this Software without prior written authorization

-from The Open Group.

-

-*/

-

-#ifdef HAVE_XWIN_CONFIG_H

-#include <xwin-config.h>

-#endif

-#include "win.h"

-#include "winmsg.h"

-#include "winconfig.h"

-#include "winprefs.h"

-#ifdef XWIN_CLIPBOARD

-#include "X11/Xlocale.h"

-#endif

-#ifdef DPMSExtension

-#include "dpmsproc.h"

-#endif

-#ifdef __CYGWIN__

-#include <mntent.h>

-#endif

-#if defined(WIN32)

-#include "xkbsrv.h"

-#endif

-#ifdef RELOCATE_PROJECTROOT

-#undef Status

-#include <shlobj.h>

-typedef HRESULT  (__stdcall *  SHGETFOLDERPATHPROC)(

-    HWND hwndOwner,

-    int nFolder,

-    HANDLE hToken,

-    DWORD dwFlags,

-    LPSTR pszPath

-);

-#endif

-

-

-/*

- * References to external symbols

- */

-

-extern int			g_iNumScreens;

-extern winScreenInfo		g_ScreenInfo[];

-extern int			g_iLastScreen;

-extern char *			g_pszCommandLine;

-extern Bool			g_fSilentFatalError;

-

-extern const char *		g_pszLogFile;

-extern Bool			g_fLogFileChanged;

-extern int			g_iLogVerbose;

-Bool				g_fLogInited;

-

-extern Bool			g_fXdmcpEnabled;

-extern Bool			g_fAuthEnabled;

-#ifdef HAS_DEVWINDOWS

-extern int			g_fdMessageQueue;

-#endif

-extern const char *		g_pszQueryHost;

-extern HINSTANCE		g_hInstance;

-

-#ifdef XWIN_CLIPBOARD

-extern Bool			g_fUnicodeClipboard;

-extern Bool			g_fClipboardLaunched;

-extern Bool			g_fClipboardStarted;

-extern pthread_t		g_ptClipboardProc;

-extern HWND			g_hwndClipboard;

-extern Bool			g_fClipboard;

-#endif

-

-extern HMODULE			g_hmodDirectDraw;

-extern FARPROC			g_fpDirectDrawCreate;

-extern FARPROC			g_fpDirectDrawCreateClipper;

-  

-extern HMODULE			g_hmodCommonControls;

-extern FARPROC			g_fpTrackMouseEvent;

-extern Bool			g_fNoHelpMessageBox;                     

-extern Bool			g_fSilentDupError;                     

-extern Bool                     g_fNativeGl;

-

-/*

- * Function prototypes

- */

-

-#ifdef XWIN_CLIPBOARD

-static void

-winClipboardShutdown (void);

-#endif

-

-#if defined(DDXOSVERRORF)

-void

-OsVendorVErrorF (const char *pszFormat, va_list va_args);

-#endif

-

-void

-winInitializeDefaultScreens (void);

-

-static Bool

-winCheckDisplayNumber (void);

-

-void

-winLogCommandLine (int argc, char *argv[]);

-

-void

-winLogVersionInfo (void);

-

-Bool

-winValidateArgs (void);

-

-#ifdef RELOCATE_PROJECTROOT

-const char *

-winGetBaseDir(void);

-#endif

-

-static

-void glx_debugging(void);

-

-/*

- * For the depth 24 pixmap we default to 32 bits per pixel, but

- * we change this pixmap format later if we detect that the display

- * is going to be running at 24 bits per pixel.

- *

- * FIXME: On second thought, don't DIBs only support 32 bits per pixel?

- * DIBs are the underlying bitmap used for DirectDraw surfaces, so it

- * seems that all pixmap formats with depth 24 would be 32 bits per pixel.

- * Confirm whether depth 24 DIBs can have 24 bits per pixel, then remove/keep

- * the bits per pixel adjustment and update this comment to reflect the

- * situation.  Harold Hunt - 2002/07/02

- */

-

-static PixmapFormatRec g_PixmapFormats[] = {

-  { 1,    1,      BITMAP_SCANLINE_PAD },

-  { 4,    8,      BITMAP_SCANLINE_PAD },

-  { 8,    8,      BITMAP_SCANLINE_PAD },

-  { 15,   16,     BITMAP_SCANLINE_PAD },

-  { 16,   16,     BITMAP_SCANLINE_PAD },

-  { 24,   32,     BITMAP_SCANLINE_PAD },

-  { 32,   32,     BITMAP_SCANLINE_PAD }

-};

-

-const int NUMFORMATS = sizeof (g_PixmapFormats) / sizeof (g_PixmapFormats[0]);

-

-#ifdef XWIN_CLIPBOARD

-static void

-winClipboardShutdown (void)

-{

-  /* Close down clipboard resources */

-  if (g_fClipboard && g_fClipboardLaunched && g_fClipboardStarted)

-    {

-      /* Synchronously destroy the clipboard window */

-      if (g_hwndClipboard != NULL)

-	{

-	  SendMessage (g_hwndClipboard, WM_DESTROY, 0, 0);

-	  /* NOTE: g_hwndClipboard is set to NULL in winclipboardthread.c */

-	}

-      else

-	return;

-      

-      /* Wait for the clipboard thread to exit */

-      pthread_join (g_ptClipboardProc, NULL);

-

-      winDebug ("winClipboardShutdown - Clipboard thread has exited.\n");

-    }

-}

-#endif

-

-

-#if defined(DDXBEFORERESET)

-/*

- * Called right before KillAllClients when the server is going to reset,

- * allows us to shutdown our seperate threads cleanly.

- */

-

-void

-ddxBeforeReset (void)

-{

-  winDebug ("ddxBeforeReset - Hello\n");

-

-#ifdef XWIN_CLIPBOARD

-  winClipboardShutdown ();

-#endif

-}

-#endif

-

-

-/* See Porting Layer Definition - p. 57 */

-void

-ddxGiveUp (void)

-{

-  int		i;

-

-  winDebug ("ddxGiveUp\n");

-

-  /* Perform per-screen deinitialization */

-  for (i = 0; i < g_iNumScreens; ++i)

-    {

-      /* Delete the tray icon */

-      if (!g_ScreenInfo[i].fNoTrayIcon && g_ScreenInfo[i].pScreen)

- 	winDeleteNotifyIcon (winGetScreenPriv (g_ScreenInfo[i].pScreen));

-    }

-

-#ifdef XWIN_MULTIWINDOW

-  /* Notify the worker threads we're exiting */

-  winDeinitMultiWindowWM ();

-#endif

-

-#ifdef HAS_DEVWINDOWS

-  /* Close our handle to our message queue */

-  if (g_fdMessageQueue != WIN_FD_INVALID)

-    {

-      /* Close /dev/windows */

-      close (g_fdMessageQueue);

-

-      /* Set the file handle to invalid */

-      g_fdMessageQueue = WIN_FD_INVALID;

-    }

-#endif

-

-  if (!g_fLogInited) {

-    g_pszLogFile = LogInit (g_pszLogFile, NULL);

-    g_fLogInited = TRUE;

-  }  

-  LogClose ();

-

-  /*

-   * At this point we aren't creating any new screens, so

-   * we are guaranteed to not need the DirectDraw functions.

-   */

-  if (g_hmodDirectDraw != NULL)

-    {

-      FreeLibrary (g_hmodDirectDraw);

-      g_hmodDirectDraw = NULL;

-      g_fpDirectDrawCreate = NULL;

-      g_fpDirectDrawCreateClipper = NULL;

-    }

-

-  /* Unload our TrackMouseEvent funtion pointer */

-  if (g_hmodCommonControls != NULL)

-    {

-      FreeLibrary (g_hmodCommonControls);

-      g_hmodCommonControls = NULL;

-      g_fpTrackMouseEvent = (FARPROC) (void (*)(void))NoopDDA;

-    }

-  

-  /* Free concatenated command line */

-  if (g_pszCommandLine)

-    {

-      free (g_pszCommandLine);

-      g_pszCommandLine = NULL;

-    }

-

-  /* Remove our keyboard hook if it is installed */

-  winRemoveKeyboardHookLL ();

-

-  /* Tell Windows that we want to end the app */

-  PostQuitMessage (0);

-}

-

-

-/* See Porting Layer Definition - p. 57 */

-void

-AbortDDX (void)

-{

-  winDebug ("AbortDDX\n");

-  ddxGiveUp ();

-}

-

-#ifdef __CYGWIN__

-/* hasmntopt is currently not implemented for cygwin */

-static const char *winCheckMntOpt(const struct mntent *mnt, const char *opt)

-{

-    const char *s;

-    size_t len;

-    if (mnt == NULL)

-        return NULL;

-    if (opt == NULL)

-        return NULL;

-    if (mnt->mnt_opts == NULL)

-        return NULL;

-

-    len = strlen(opt);

-    s = strstr(mnt->mnt_opts, opt);

-    if (s == NULL)

-        return NULL;

-    if ((s == mnt->mnt_opts || *(s-1) == ',') &&  (s[len] == 0 || s[len] == ','))

-        return (char *)opt;

-    return NULL;

-}

-

-static void

-winCheckMount(void)

-{

-  FILE *mnt;

-  struct mntent *ent;

-

-  enum { none = 0, sys_root, user_root, sys_tmp, user_tmp } 

-    level = none, curlevel;

-  BOOL binary = TRUE;

-

-  mnt = setmntent("/etc/mtab", "r");

-  if (mnt == NULL)

-  {

-    ErrorF("setmntent failed");

-    return;

-  }

-

-  while ((ent = getmntent(mnt)) != NULL)

-  {

-    BOOL system = (winCheckMntOpt(ent, "user") != NULL);

-    BOOL root = (strcmp(ent->mnt_dir, "/") == 0);

-    BOOL tmp = (strcmp(ent->mnt_dir, "/tmp") == 0);

-    

-    if (system)

-    {

-      if (root)

-        curlevel = sys_root;

-      else if (tmp)

-        curlevel = sys_tmp;

-      else

-        continue;

-    }

-    else

-    {

-      if (root)

-        curlevel = user_root;

-      else if (tmp) 

-        curlevel = user_tmp;

-      else

-        continue;

-    }

-

-    if (curlevel <= level)

-      continue;

-    level = curlevel;

-

-    if ((winCheckMntOpt(ent, "binary") == NULL) &&

-        (winCheckMntOpt(ent, "binmode") == NULL))

-      binary = FALSE;

-    else

-      binary = TRUE;

-  }

-    

-  if (endmntent(mnt) != 1)

-  {

-    ErrorF("endmntent failed");

-    return;

-  }

-  

-#ifdef WINDBG

-  if (!binary) 

-    winDebug("/tmp mounted in textmode\n");

-#endif

-}

-#else

-static void

-winCheckMount(void) 

-{

-}

-#endif

-

-#ifdef RELOCATE_PROJECTROOT

-const char * 

-winGetBaseDir(void)

-{

-    static BOOL inited = FALSE;

-    static char buffer[MAX_PATH];

-    if (!inited)

-    {

-        char *fendptr;

-        HMODULE module = GetModuleHandle(NULL);

-        DWORD size = GetModuleFileName(module, buffer, sizeof(buffer));

-        if (sizeof(buffer) > 0)

-            buffer[sizeof(buffer)-1] = 0;

-    

-        fendptr = buffer + size;

-        while (fendptr > buffer)

-        {

-            if (*fendptr == '\\' || *fendptr == '/')

-            {

-                *fendptr = 0;

-                break;

-            }

-            fendptr--;

-        }

-        inited = TRUE;

-    }

-    return buffer;

-}

-#endif

-

-static void

-winFixupPaths (void)

-{

-    BOOL changed_fontpath = FALSE;

-    MessageType font_from = X_DEFAULT;

-#ifdef RELOCATE_PROJECTROOT

-    const char *basedir = winGetBaseDir();

-    size_t basedirlen = strlen(basedir);

-#endif

-

-#ifdef READ_FONTDIRS

-    {

-        /* Open fontpath configuration file */

-#if defined WIN32 && defined __MINGW32__

-        static Bool once = False;

-        char buffer[MAX_PATH];

-        snprintf(buffer, sizeof(buffer), "%s\\font-dirs", basedir);

-        buffer[sizeof(buffer)-1] = 0;

-        FILE *fontdirs = fopen(buffer, "rt");

-        if (once) fontdirs = NULL;

-        else once = True;

-#else

-        FILE *fontdirs = fopen(ETCX11DIR "/font-dirs", "rt");

-#endif

-        if (fontdirs != NULL)

-        {

-            char buffer[256];

-            int needs_sep = TRUE; 

-            int comment_block = FALSE;

-

-            /* get defautl fontpath */

-            char *fontpath = xstrdup(defaultFontPath);

-            size_t size = strlen(fontpath);

-

-            /* read all lines */

-            while (!feof(fontdirs))

-            {

-                size_t blen;

-                char *hashchar;

-                char *str;

-                int has_eol = FALSE;

-

-                /* read one line */

-                str = fgets(buffer, sizeof(buffer), fontdirs);

-                if (str == NULL) /* stop on error or eof */

-                    break;

-

-                if (strchr(str, '\n') != NULL)

-                    has_eol = TRUE;

-

-                /* check if block is continued comment */

-                if (comment_block)

-                {

-                    /* ignore all input */

-                    *str = 0; 

-                    blen = 0; 

-                    if (has_eol) /* check if line ended in this block */

-                        comment_block = FALSE;

-                }

-                else 

-                {

-                    /* find comment character. ignore all trailing input */

-                    hashchar = strchr(str, '#');

-                    if (hashchar != NULL)

-                    {

-                        *hashchar = 0;

-                        if (!has_eol) /* mark next block as continued comment */

-                            comment_block = TRUE;

-                    }

-                }

-

-                /* strip whitespaces from beginning */

-                while (*str == ' ' || *str == '\t')

-                    str++;

-

-                /* get size, strip whitespaces from end */ 

-                blen = strlen(str);

-                while (blen > 0 && (str[blen-1] == ' ' || 

-                            str[blen-1] == '\t' || str[blen-1] == '\n'))

-                {

-                    str[--blen] = 0;

-                }

-

-                /* still something left to add? */ 

-                if (blen > 0)

-                {

-                    size_t newsize = size + blen;

-                    /* reserve one character more for ',' */

-                    if (needs_sep)

-                        newsize++;

-

-                    /* allocate memory */

-                    if (fontpath == NULL)

-                        fontpath = malloc(newsize+1);

-                    else

-                        fontpath = realloc(fontpath, newsize+1);

-

-                    /* add separator */

-                    if (needs_sep)

-                    {

-                        fontpath[size] = ',';

-                        size++;

-                        needs_sep = FALSE;

-                    }

-

-                    /* mark next line as new entry */

-                    if (has_eol)

-                        needs_sep = TRUE;

-

-                    /* add block */

-                    strncpy(fontpath + size, str, blen);

-                    fontpath[newsize] = 0;

-                    size = newsize;

-                }

-            }

-

-            /* cleanup */

-            fclose(fontdirs);  

-            defaultFontPath = xstrdup(fontpath);

-            free(fontpath);

-            changed_fontpath = TRUE;

-            font_from = X_CONFIG;

-        }

-    }

-#endif /* READ_FONTDIRS */

-#ifdef RELOCATE_PROJECTROOT

-    {

-        const char *libx11dir = PROJECTROOT "/lib/X11";

-        size_t libx11dir_len = strlen(libx11dir);

-        char *newfp = NULL;

-        size_t newfp_len = 0;

-        const char *endptr, *ptr, *oldptr = defaultFontPath;

-

-        endptr = oldptr + strlen(oldptr);

-        ptr = strchr(oldptr, ',');

-        if (ptr == NULL)

-            ptr = endptr;

-        while (ptr != NULL)

-        {

-            size_t oldfp_len = (ptr - oldptr);

-            size_t newsize = oldfp_len;

-            char *newpath = malloc(newsize + 1);

-            strncpy(newpath, oldptr, newsize);

-            newpath[newsize] = 0;

-

-

-            if (strncmp(libx11dir, newpath, libx11dir_len) == 0)

-            {

-                char *compose;

-                newsize = newsize - libx11dir_len + basedirlen;

-                compose = malloc(newsize + 1);  

-                strcpy(compose, basedir);

-                strncat(compose, newpath + libx11dir_len, newsize - basedirlen);

-                compose[newsize] = 0;

-                free(newpath);

-                newpath = compose;

-            }

-

-            oldfp_len = newfp_len;

-            if (oldfp_len > 0)

-                newfp_len ++; /* space for separator */

-            newfp_len += newsize;

-

-            if (newfp == NULL)

-                newfp = malloc(newfp_len + 1);

-            else

-                newfp = realloc(newfp, newfp_len + 1);

-

-            if (oldfp_len > 0)

-            {

-                strcpy(newfp + oldfp_len, ",");

-                oldfp_len++;

-            }

-            strcpy(newfp + oldfp_len, newpath);

-

-            free(newpath);

-

-            if (*ptr == 0)

-            {

-                oldptr = ptr;

-                ptr = NULL;

-            } else

-            {

-                oldptr = ptr + 1;

-                ptr = strchr(oldptr, ',');

-                if (ptr == NULL)

-                    ptr = endptr;

-            }

-        } 

-

-        defaultFontPath = xstrdup(newfp);

-        free(newfp);

-        changed_fontpath = TRUE;

-    }

-#endif /* RELOCATE_PROJECTROOT */

-    if (changed_fontpath)

-        winDebug ("FontPath set to \"%s\"\n", defaultFontPath);

-

-#ifdef RELOCATE_PROJECTROOT

-    if (getenv("XKEYSYMDB") == NULL)

-    {

-        char buffer[MAX_PATH];

-        snprintf(buffer, sizeof(buffer), "XKEYSYMDB=%s\\XKeysymDB",

-                basedir);

-        buffer[sizeof(buffer)-1] = 0;

-        putenv(buffer);

-    }

-    if (getenv("XERRORDB") == NULL)

-    {

-        char buffer[MAX_PATH];

-        snprintf(buffer, sizeof(buffer), "XERRORDB=%s\\XErrorDB",

-                basedir);

-        buffer[sizeof(buffer)-1] = 0;

-        putenv(buffer);

-    }

-    if (getenv("XLOCALEDIR") == NULL)

-    {

-        char buffer[MAX_PATH];

-        snprintf(buffer, sizeof(buffer), "XLOCALEDIR=%s\\locale",

-                basedir);

-        buffer[sizeof(buffer)-1] = 0;

-        putenv(buffer);

-    }

-    if (getenv("XHOSTPREFIX") == NULL)

-    {

-        char buffer[MAX_PATH];

-        snprintf(buffer, sizeof(buffer), "XHOSTPREFIX=%s\\X",

-                basedir);

-        buffer[sizeof(buffer)-1] = 0;

-        putenv(buffer);

-    }

-    if (getenv("HOME") == NULL)

-    {

-        HMODULE shfolder;

-        SHGETFOLDERPATHPROC shgetfolderpath = NULL;

-        char buffer[MAX_PATH + 5];

-        strncpy(buffer, "HOME=", 5);

-

-        /* Try to load SHGetFolderPath from shfolder.dll and shell32.dll */

-        

-        shfolder = LoadLibrary("shfolder.dll");

-        /* fallback to shell32.dll */

-        if (shfolder == NULL)

-            shfolder = LoadLibrary("shell32.dll");

-

-        /* resolve SHGetFolderPath */

-        if (shfolder != NULL)

-            shgetfolderpath = (SHGETFOLDERPATHPROC)GetProcAddress(shfolder, "SHGetFolderPathA");

-

-        /* query appdata directory */

-        if (shgetfolderpath &&

-                shgetfolderpath(NULL, CSIDL_APPDATA|CSIDL_FLAG_CREATE, NULL, 0, 

-                    buffer + 5) == 0)

-        { 

-            putenv(buffer);

-        } else

-        {

-            ErrorF ("Can not determine HOME directory\n");

-        } 

-        if (shfolder != NULL)

-            FreeLibrary(shfolder);

-    }

-    if (!g_fLogFileChanged) {

-        static char buffer[MAX_PATH];

-        DWORD size = GetTempPath(sizeof(buffer), buffer);

-        if (size && size < sizeof(buffer))

-        {

-            snprintf(buffer + size, sizeof(buffer) - size, 

-                    "VCXSrv.%s.log", display); 

-            buffer[sizeof(buffer)-1] = 0;

-            g_pszLogFile = buffer;

-            GetLongPathName(buffer, buffer, MAX_PATH);

-            winDebug ("Logfile set to \"%s\"\n", g_pszLogFile);

-        }

-    }

-    {

-        static char xkbbasedir[MAX_PATH];

-

-        snprintf(xkbbasedir, sizeof(xkbbasedir), "%s\\xkbdata", basedir);

-        if (sizeof(xkbbasedir) > 0)

-            xkbbasedir[sizeof(xkbbasedir)-1] = 0;

-        XkbBaseDirectory = xkbbasedir;

-	XkbBinDirectory = basedir;

-    }

-#endif /* RELOCATE_PROJECTROOT */

-}

-

-void

-OsVendorInit (void)

-{

-  /* Re-initialize global variables on server reset */

-  winInitializeGlobals ();

-

-  winFixupPaths();

-

-#ifdef DDXOSVERRORF

-  if (!OsVendorVErrorFProc)

-    OsVendorVErrorFProc = OsVendorVErrorF;

-#endif

-

-  if (!g_fLogInited) {

-    /* keep this order. If LogInit fails it calls Abort which then calls

-     * ddxGiveUp where LogInit is called again and creates an infinite 

-     * recursion. If we set g_fLogInited to TRUE before the init we 

-     * avoid the second call 

-     */  

-    g_fLogInited = TRUE;

-    g_pszLogFile = LogInit (g_pszLogFile, NULL);

-  } 

-  LogSetParameter (XLOG_FLUSH, 1);

-  LogSetParameter (XLOG_VERBOSITY, g_iLogVerbose);

-  LogSetParameter (XLOG_FILE_VERBOSITY, g_iLogVerbose);

-

-  /* Log the version information */

-  if (serverGeneration == 1)

-    winLogVersionInfo ();

-

-  winCheckMount();  

-

-  /* Add a default screen if no screens were specified */

-  if (g_iNumScreens == 0)

-    {

-      winDebug ("OsVendorInit - Creating bogus screen 0\n");

-

-      /* 

-       * We need to initialize default screens if no arguments

-       * were processed.  Otherwise, the default screens would

-       * already have been initialized by ddxProcessArgument ().

-       */

-      winInitializeDefaultScreens ();

-

-      /*

-       * Add a screen 0 using the defaults set by 

-       * winInitializeDefaultScreens () and any additional parameters

-       * processed by ddxProcessArgument ().

-       */

-      g_iNumScreens = 1;

-      g_iLastScreen = 0;

-

-      /* We have to flag this as an explicit screen, even though it isn't */

-      g_ScreenInfo[0].fExplicitScreen = TRUE;

-    }

-}

-

-

-static void

-winUseMsg (void)

-{

-  ErrorF("\n");

-  ErrorF("\n");

-  ErrorF(EXECUTABLE_NAME " Device Dependent Usage:\n");

-  ErrorF("\n");

-

-#ifdef XWIN_CLIPBOARD

-  ErrorF ("-[no]clipboard\n"

-	  "\tEnable [disable] the clipboard integration. Default is enabled.\n");

-#endif

-

-  ErrorF ("-clipupdates num_boxes\n"

-	  "\tUse a clipping region to constrain shadow update blits to\n"

-	  "\tthe updated region when num_boxes, or more, are in the\n"

-	  "\tupdated region.\n");

-

-#ifdef XWIN_XF86CONFIG

-  ErrorF ("-config\n"

-          "\tSpecify a configuration file.\n");

-

-  ErrorF ("-configdir\n"

-          "\tSpecify a configuration directory.\n");

-#endif

-

-  ErrorF ("-depth bits_per_pixel\n"

-	  "\tSpecify an optional bitdepth to use in fullscreen mode\n"

-	  "\twith a DirectDraw engine.\n");

-

-  ErrorF ("-emulate3buttons [timeout]\n"

-	  "\tEmulate 3 button mouse with an optional timeout in\n"

-	  "\tmilliseconds.\n");

-

-#ifdef XWIN_EMULATEPSEUDO

-  ErrorF ("-emulatepseudo\n"

-	  "\tCreate a depth 8 PseudoColor visual when running in\n"

-	  "\tdepths 15, 16, 24, or 32, collectively known as TrueColor\n"

-	  "\tdepths.  The PseudoColor visual does not have correct colors,\n"

-	  "\tand it may crash, but it at least allows you to run your\n"

-	  "\tapplication in TrueColor modes.\n");

-#endif

-

-  ErrorF ("-engine engine_type_id\n"

-	  "\tOverride the server's automatically selected engine type:\n"

-	  "\t\t1 - Shadow GDI\n"

-	  "\t\t2 - Shadow DirectDraw\n"

-	  "\t\t4 - Shadow DirectDraw4 Non-Locking\n"

-#ifdef XWIN_PRIMARYFB

-	  "\t\t8 - Primary DirectDraw\n"

-#endif

-#ifdef XWIN_NATIVEGDI

-	  "\t\t16 - Native GDI - experimental\n"

-#endif

-	  );

-

-  ErrorF ("-fullscreen\n"

-	  "\tRun the server in fullscreen mode.\n");

-

-  ErrorF ("-ignoreinput\n"

-	  "\tIgnore keyboard and mouse input.\n");

-

-#ifdef XWIN_MULTIWINDOWEXTWM

-  ErrorF ("-internalwm\n"

-	  "\tRun the internal window manager.\n");

-#endif

-

-#ifdef XWIN_XF86CONFIG

-  ErrorF ("-keyboard\n"

-	  "\tSpecify a keyboard device from the configuration file.\n");

-#endif

-

-  ErrorF ("-[no]keyhook\n"

-	  "\tGrab special Windows keypresses like Alt-Tab or the Menu "

-          "key.\n");

-

-  ErrorF ("-lesspointer\n"

-	  "\tHide the windows mouse pointer when it is over any\n"

-          "\t" EXECUTABLE_NAME " window.  This prevents ghost cursors appearing when\n"

-	  "\tthe Windows cursor is drawn on top of the X cursor\n");

-

-  ErrorF ("-logfile filename\n"

-	  "\tWrite log messages to <filename>.\n");

-

-  ErrorF ("-logverbose verbosity\n"

-	  "\tSet the verbosity of log messages. [NOTE: Only a few messages\n"

-	  "\trespect the settings yet]\n"

-	  "\t\t0 - only print fatal error.\n"

-	  "\t\t1 - print additional configuration information.\n"

-	  "\t\t2 - print additional runtime information [default].\n"

-	  "\t\t3 - print debugging and tracing information.\n");

-

-  ErrorF ("-[no]multimonitors or -[no]multiplemonitors\n"

-	  "\tUse the entire virtual screen if multiple\n"

-	  "\tmonitors are present.\n");

-

-#ifdef XWIN_MULTIWINDOW

-  ErrorF ("-multiwindow\n"

-	  "\tRun the server in multi-window mode.\n");

-#endif

-

-#ifdef XWIN_MULTIWINDOWEXTWM

-  ErrorF ("-mwextwm\n"

-	  "\tRun the server in multi-window external window manager mode.\n");

-#endif

-

-  ErrorF ("-nodecoration\n"

-          "\tDo not draw a window border, title bar, etc.  Windowed\n"

-	  "\tmode only.\n");

-

-#ifdef XWIN_CLIPBOARD

-  ErrorF ("-nounicodeclipboard\n"

-	  "\tDo not use Unicode clipboard even if on a NT-based platform.\n");

-#endif

-

-  ErrorF ("-refresh rate_in_Hz\n"

-	  "\tSpecify an optional refresh rate to use in fullscreen mode\n"

-	  "\twith a DirectDraw engine.\n");

-

-  ErrorF ("-rootless\n"

-	  "\tRun the server in rootless mode.\n");

-

-  ErrorF ("-screen scr_num [width height [x y] | [[WxH[+X+Y]][@m]] ]\n"

-	  "\tEnable screen scr_num and optionally specify a width and\n"

-	  "\theight and initial position for that screen. Additionally\n"

-	  "\ta monitor number can be specified to start the server on,\n"

-	  "\tat which point, all coordinates become relative to that\n"

-      "\tmonitor (Not for Windows NT4 and 95). Examples:\n"

-      "\t -screen 0 800x600+100+100@2 ; 2nd monitor offset 100,100 size 800x600\n"

-      "\t -screen 0 1024x768@3        ; 3rd monitor size 1024x768\n"

-      "\t -screen 0 @1 ; on 1st monitor using its full resolution (the default)\n");

-

-  ErrorF ("-scrollbars\n"

-	  "\tIn windowed mode, allow screens bigger than the Windows desktop.\n"

-	  "\tMoreover, if the window has decorations, one can now resize\n"

-	  "\tit.\n");

-

-  ErrorF ("-silent-dup-error\n"

-	  "\tIf another instance of " EXECUTABLE_NAME " with the same display number is running\n"

-     "\texit silently and don’t display any error message.\n");

-

-  ErrorF ("-swcursor\n"

-	  "\tDisable the usage of the Windows cursor and use the X11 software\n"

-	  "\tcursor instead.\n");

-

-  ErrorF ("-[no]trayicon\n"

-          "\tDo not create a tray icon.  Default is to create one\n"

-	  "\ticon per screen.  You can globally disable tray icons with\n"

-	  "\t-notrayicon, then enable it for specific screens with\n"

-	  "\t-trayicon for those screens.\n");

-

-  ErrorF ("-[no]unixkill\n"

-          "\tCtrl+Alt+Backspace exits the X Server.\n");

-

-#ifdef XWIN_GLX_WINDOWS

-  ErrorF ("-[no]wgl\n"

-	  "\tEnable the GLX extension to use the native Windows WGL interface for accelerated OpenGL\n");

-#endif

-

-  ErrorF ("-[no]winkill\n"

-          "\tAlt+F4 exits the X Server.\n");

-

-  ErrorF ("-xkblayout XKBLayout\n"

-	  "\tEquivalent to XKBLayout in XF86Config files.\n"

-	  "\tFor example: -xkblayout de\n");

-

-  ErrorF ("-xkbmodel XKBModel\n"

-	  "\tEquivalent to XKBModel in XF86Config files.\n");

-

-  ErrorF ("-xkboptions XKBOptions\n"

-	  "\tEquivalent to XKBOptions in XF86Config files.\n");

-

-  ErrorF ("-xkbrules XKBRules\n"

-	  "\tEquivalent to XKBRules in XF86Config files.\n");

-

-  ErrorF ("-xkbvariant XKBVariant\n"

-	  "\tEquivalent to XKBVariant in XF86Config files.\n"

-	  "\tFor example: -xkbvariant nodeadkeys\n");

-}

-

-/* See Porting Layer Definition - p. 57 */

-void

-ddxUseMsg(void)

-{

-  /* Set a flag so that FatalError won't give duplicate warning message */

-  g_fSilentFatalError = TRUE;

-  

-  winUseMsg();  

-

-  /* Log file will not be opened for UseMsg unless we open it now */

-  if (!g_fLogInited) {

-    g_pszLogFile = LogInit (g_pszLogFile, NULL);

-    g_fLogInited = TRUE;

-  }  

-  LogClose ();

-

-  /* Notify user where UseMsg text can be found.*/

-  if (!g_fNoHelpMessageBox)

-    winMessageBoxF ("The " PROJECT_NAME " help text has been printed to "

-		  "%s.\n"

-		  "Please open %s to read the help text.\n",

-		  MB_ICONINFORMATION, g_pszLogFile, g_pszLogFile);

-}

-

-/* See Porting Layer Definition - p. 20 */

-/*

- * Do any global initialization, then initialize each screen.

- * 

- * NOTE: We use ddxProcessArgument, so we don't need to touch argc and argv

- */

-

-void

-InitOutput (ScreenInfo *screenInfo, int argc, char *argv[])

-{

-  int		i;

-

-  /* Log the command line */

-  winLogCommandLine (argc, argv);

-

-  winDebug ("InitOutput\n");

-

-  /* Validate command-line arguments */

-  if (serverGeneration == 1 && !winValidateArgs ())

-    {

-      FatalError ("InitOutput - Invalid command-line arguments found.  "

-		  "Exiting.\n");

-    }

-

-  /* Check for duplicate invocation on same display number.*/

-  if (serverGeneration == 1 && !winCheckDisplayNumber ())

-    {

-      if (g_fSilentDupError)

-        g_fSilentFatalError = TRUE;  

-      FatalError ("InitOutput - Duplicate invocation on display "

-		  "number: %s.  Exiting.\n", display);

-    }

-

-#ifdef XWIN_XF86CONFIG

-  /* Try to read the xorg.conf-style configuration file */

-  if (!winReadConfigfile ())

-    ErrorF ("InitOutput - Error reading config file\n");

-#else

-  winConfigFiles ();

-#endif

-

-  /* Load preferences from XWinrc file */

-  LoadPreferences();

-

-  /* Setup global screen info parameters */

-  screenInfo->imageByteOrder = IMAGE_BYTE_ORDER;

-  screenInfo->bitmapScanlinePad = BITMAP_SCANLINE_PAD;

-  screenInfo->bitmapScanlineUnit = BITMAP_SCANLINE_UNIT;

-  screenInfo->bitmapBitOrder = BITMAP_BIT_ORDER;

-  screenInfo->numPixmapFormats = NUMFORMATS;

-  

-  /* Describe how we want common pixmap formats padded */

-  for (i = 0; i < NUMFORMATS; i++)

-    {

-      screenInfo->formats[i] = g_PixmapFormats[i];

-    }

-

-  /* Load pointers to DirectDraw functions */

-  winGetDDProcAddresses ();

-  

-  /* Detect supported engines */

-  winDetectSupportedEngines ();

-

-  /* Load common controls library */

-  g_hmodCommonControls = LoadLibraryEx ("comctl32.dll", NULL, 0);

-

-  /* Load TrackMouseEvent function pointer */  

-  g_fpTrackMouseEvent = GetProcAddress (g_hmodCommonControls,

-					 "_TrackMouseEvent");

-  if (g_fpTrackMouseEvent == NULL)

-    {

-      ErrorF ("InitOutput - Could not get pointer to function\n"

-	      "\t_TrackMouseEvent in comctl32.dll.  Try installing\n"

-	      "\tInternet Explorer 3.0 or greater if you have not\n"

-	      "\talready.\n");

-

-      /* Free the library since we won't need it */

-      FreeLibrary (g_hmodCommonControls);

-      g_hmodCommonControls = NULL;

-

-      /* Set function pointer to point to no operation function */

-      g_fpTrackMouseEvent = (FARPROC) (void (*)(void))NoopDDA;

-    }

-

-  /* Store the instance handle */

-  g_hInstance = GetModuleHandle (NULL);

-

-  /* Initialize each screen */

-  for (i = 0; i < g_iNumScreens; ++i)

-    {

-      /* Initialize the screen */

-      if (-1 == AddScreen (winScreenInit, argc, argv))

-	{

-	  FatalError ("InitOutput - Couldn't add screen %d", i);

-	}

-    }

-

-#if defined(XWIN_CLIPBOARD) || defined(XWIN_MULTIWINDOW)

-

-  /* Generate a cookie used by internal clients for authorization */

-  if (g_fXdmcpEnabled || g_fAuthEnabled)

-    winGenerateAuthorization ();

-

-  /* Perform some one time initialization */

-  if (1 == serverGeneration)

-    {

-      /*

-       * setlocale applies to all threads in the current process.

-       * Apply locale specified in LANG environment variable.

-       */

-      setlocale (LC_ALL, "");

-

-      glx_debugging();

-    }

-#endif

-

-  winDebug ("InitOutput - Returning.\n");

-}

-

-

-/*

- * winCheckDisplayNumber - Check if another instance of Cygwin/X is

- * already running on the same display number.  If no one exists,

- * make a mutex to prevent new instances from running on the same display.

- *

- * return FALSE if the display number is already used.

- */

-

-static Bool

-winCheckDisplayNumber (void)

-{

-  int			nDisp;

-  HANDLE		mutex;

-  char			name[MAX_PATH];

-  char *		pszPrefix = '\0';

-  OSVERSIONINFO		osvi = {0};

-

-  /* Check display range */

-  nDisp = atoi (display);

-  if (nDisp < 0 || nDisp > 59535)

-    {

-      ErrorF ("winCheckDisplayNumber - Bad display number: %d\n", nDisp);

-      return FALSE;

-    }

-

-  /* Set first character of mutex name to null */

-  name[0] = '\0';

-

-  /* Get operating system version information */

-  osvi.dwOSVersionInfoSize = sizeof (osvi);

-  GetVersionEx (&osvi);

-

-  /* Want a mutex shared among all terminals on NT > 4.0 */

-  if (osvi.dwPlatformId == VER_PLATFORM_WIN32_NT

-      && osvi.dwMajorVersion >= 5)

-    {

-      pszPrefix = "Global\\";

-    }

-

-  /* Setup Cygwin/X specific part of name */

-  snprintf (name, sizeof(name), "%sCYGWINX_DISPLAY:%d", pszPrefix, nDisp);

-

-  /* Windows automatically releases the mutex when this process exits */

-  mutex = CreateMutex (NULL, FALSE, name);

-  if (!mutex)

-    {

-      LPVOID lpMsgBuf;

-

-      /* Display a fancy error message */

-      FormatMessage (FORMAT_MESSAGE_ALLOCATE_BUFFER | 

-		     FORMAT_MESSAGE_FROM_SYSTEM | 

-		     FORMAT_MESSAGE_IGNORE_INSERTS,

-		     NULL,

-		     GetLastError (),

-		     MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),

-		     (LPTSTR) &lpMsgBuf,

-		     0, NULL);

-      ErrorF ("winCheckDisplayNumber - CreateMutex failed: %s\n",

-	      (LPSTR)lpMsgBuf);

-      LocalFree (lpMsgBuf);

-

-      return FALSE;

-    }

-  if (GetLastError () == ERROR_ALREADY_EXISTS)

-    {

-      ErrorF ("winCheckDisplayNumber - "

-	      "VCXsrv, Xming or Cygwin/X is already running on display %d\n",

-	      nDisp);

-      return FALSE;

-    }

-

-  return TRUE;

-}

-

-/* GLX debugging helpers */

-#include <../glx/glapi.h>

-

-static

-void warn_func(void * p1, const char *format, ...) {

-  va_list v;

-  va_start(v, format);

-  vfprintf(stderr, format, v);

-  va_end(v);

-  fprintf(stderr,"\n");

-}

-

-static

-void glx_debugging(void)

-{

-  _glapi_set_warning_func(warn_func);

-  _glapi_noop_enable_warnings(TRUE);

-}

+
+/*
+
+Copyright 1993, 1998  The Open Group
+Copyright (C) Colin Harrison 2005-2008
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall
+not be used in advertising or otherwise to promote the sale, use or
+other dealings in this Software without prior written authorization
+from The Open Group.
+
+*/
+
+#ifdef HAVE_XWIN_CONFIG_H
+#include <xwin-config.h>
+#endif
+#include "win.h"
+#include "winmsg.h"
+#include "winconfig.h"
+#include "winprefs.h"
+#ifdef XWIN_CLIPBOARD
+#include "X11/Xlocale.h"
+#endif
+#ifdef DPMSExtension
+#include "dpmsproc.h"
+#endif
+#ifdef __CYGWIN__
+#include <mntent.h>
+#endif
+#if defined(WIN32)
+#include "xkbsrv.h"
+#endif
+#ifdef RELOCATE_PROJECTROOT
+#undef Status
+#include <shlobj.h>
+typedef HRESULT  (__stdcall *  SHGETFOLDERPATHPROC)(
+    HWND hwndOwner,
+    int nFolder,
+    HANDLE hToken,
+    DWORD dwFlags,
+    LPSTR pszPath
+);
+#endif
+
+
+/*
+ * References to external symbols
+ */
+
+extern int			g_iNumScreens;
+extern winScreenInfo *		g_ScreenInfo;
+extern char *			g_pszCommandLine;
+extern Bool			g_fSilentFatalError;
+
+extern const char *		g_pszLogFile;
+extern Bool			g_fLogFileChanged;
+extern int			g_iLogVerbose;
+Bool				g_fLogInited;
+
+extern Bool			g_fXdmcpEnabled;
+extern Bool			g_fAuthEnabled;
+#ifdef HAS_DEVWINDOWS
+extern int			g_fdMessageQueue;
+#endif
+extern const char *		g_pszQueryHost;
+extern HINSTANCE		g_hInstance;
+
+#ifdef XWIN_CLIPBOARD
+extern Bool			g_fUnicodeClipboard;
+extern Bool			g_fClipboardLaunched;
+extern Bool			g_fClipboardStarted;
+extern pthread_t		g_ptClipboardProc;
+extern HWND			g_hwndClipboard;
+extern Bool			g_fClipboard;
+#endif
+
+extern HMODULE			g_hmodDirectDraw;
+extern FARPROC			g_fpDirectDrawCreate;
+extern FARPROC			g_fpDirectDrawCreateClipper;
+  
+extern HMODULE			g_hmodCommonControls;
+extern FARPROC			g_fpTrackMouseEvent;
+extern Bool			g_fNoHelpMessageBox;                     
+extern Bool			g_fSilentDupError;                     
+extern Bool                     g_fNativeGl;
+
+/*
+ * Function prototypes
+ */
+
+#ifdef XWIN_CLIPBOARD
+static void
+winClipboardShutdown (void);
+#endif
+
+#if defined(DDXOSVERRORF)
+void
+OsVendorVErrorF (const char *pszFormat, va_list va_args);
+#endif
+
+static Bool
+winCheckDisplayNumber (void);
+
+void
+winLogCommandLine (int argc, char *argv[]);
+
+void
+winLogVersionInfo (void);
+
+Bool
+winValidateArgs (void);
+
+#ifdef RELOCATE_PROJECTROOT
+const char *
+winGetBaseDir(void);
+#endif
+
+static
+void glx_debugging(void);
+
+/*
+ * For the depth 24 pixmap we default to 32 bits per pixel, but
+ * we change this pixmap format later if we detect that the display
+ * is going to be running at 24 bits per pixel.
+ *
+ * FIXME: On second thought, don't DIBs only support 32 bits per pixel?
+ * DIBs are the underlying bitmap used for DirectDraw surfaces, so it
+ * seems that all pixmap formats with depth 24 would be 32 bits per pixel.
+ * Confirm whether depth 24 DIBs can have 24 bits per pixel, then remove/keep
+ * the bits per pixel adjustment and update this comment to reflect the
+ * situation.  Harold Hunt - 2002/07/02
+ */
+
+static PixmapFormatRec g_PixmapFormats[] = {
+  { 1,    1,      BITMAP_SCANLINE_PAD },
+  { 4,    8,      BITMAP_SCANLINE_PAD },
+  { 8,    8,      BITMAP_SCANLINE_PAD },
+  { 15,   16,     BITMAP_SCANLINE_PAD },
+  { 16,   16,     BITMAP_SCANLINE_PAD },
+  { 24,   32,     BITMAP_SCANLINE_PAD },
+  { 32,   32,     BITMAP_SCANLINE_PAD }
+};
+
+const int NUMFORMATS = sizeof (g_PixmapFormats) / sizeof (g_PixmapFormats[0]);
+
+#ifdef XWIN_CLIPBOARD
+static void
+winClipboardShutdown (void)
+{
+  /* Close down clipboard resources */
+  if (g_fClipboard && g_fClipboardLaunched && g_fClipboardStarted)
+    {
+      /* Synchronously destroy the clipboard window */
+      if (g_hwndClipboard != NULL)
+	{
+	  SendMessage (g_hwndClipboard, WM_DESTROY, 0, 0);
+	  /* NOTE: g_hwndClipboard is set to NULL in winclipboardthread.c */
+	}
+      else
+	return;
+      
+      /* Wait for the clipboard thread to exit */
+      pthread_join (g_ptClipboardProc, NULL);
+
+      winDebug ("winClipboardShutdown - Clipboard thread has exited.\n");
+    }
+}
+#endif
+
+
+#if defined(DDXBEFORERESET)
+/*
+ * Called right before KillAllClients when the server is going to reset,
+ * allows us to shutdown our seperate threads cleanly.
+ */
+
+void
+ddxBeforeReset (void)
+{
+  winDebug ("ddxBeforeReset - Hello\n");
+
+#ifdef XWIN_CLIPBOARD
+  winClipboardShutdown ();
+#endif
+}
+#endif
+
+
+/* See Porting Layer Definition - p. 57 */
+void
+ddxGiveUp (void)
+{
+  int		i;
+
+  winDebug ("ddxGiveUp\n");
+
+  /* Perform per-screen deinitialization */
+  for (i = 0; i < g_iNumScreens; ++i)
+    {
+      /* Delete the tray icon */
+      if (!g_ScreenInfo[i].fNoTrayIcon && g_ScreenInfo[i].pScreen)
+ 	winDeleteNotifyIcon (winGetScreenPriv (g_ScreenInfo[i].pScreen));
+    }
+
+#ifdef XWIN_MULTIWINDOW
+  /* Notify the worker threads we're exiting */
+  winDeinitMultiWindowWM ();
+#endif
+
+#ifdef HAS_DEVWINDOWS
+  /* Close our handle to our message queue */
+  if (g_fdMessageQueue != WIN_FD_INVALID)
+    {
+      /* Close /dev/windows */
+      close (g_fdMessageQueue);
+
+      /* Set the file handle to invalid */
+      g_fdMessageQueue = WIN_FD_INVALID;
+    }
+#endif
+
+  if (!g_fLogInited) {
+    g_pszLogFile = LogInit (g_pszLogFile, NULL);
+    g_fLogInited = TRUE;
+  }  
+  LogClose ();
+
+  /*
+   * At this point we aren't creating any new screens, so
+   * we are guaranteed to not need the DirectDraw functions.
+   */
+  if (g_hmodDirectDraw != NULL)
+    {
+      FreeLibrary (g_hmodDirectDraw);
+      g_hmodDirectDraw = NULL;
+      g_fpDirectDrawCreate = NULL;
+      g_fpDirectDrawCreateClipper = NULL;
+    }
+
+  /* Unload our TrackMouseEvent funtion pointer */
+  if (g_hmodCommonControls != NULL)
+    {
+      FreeLibrary (g_hmodCommonControls);
+      g_hmodCommonControls = NULL;
+      g_fpTrackMouseEvent = (FARPROC) (void (*)(void))NoopDDA;
+    }
+  
+  /* Free concatenated command line */
+  if (g_pszCommandLine)
+    {
+      free (g_pszCommandLine);
+      g_pszCommandLine = NULL;
+    }
+
+  /* Remove our keyboard hook if it is installed */
+  winRemoveKeyboardHookLL ();
+
+  /* Tell Windows that we want to end the app */
+  PostQuitMessage (0);
+}
+
+
+/* See Porting Layer Definition - p. 57 */
+void
+AbortDDX (void)
+{
+  winDebug ("AbortDDX\n");
+  ddxGiveUp ();
+}
+
+#ifdef __CYGWIN__
+/* hasmntopt is currently not implemented for cygwin */
+static const char *winCheckMntOpt(const struct mntent *mnt, const char *opt)
+{
+    const char *s;
+    size_t len;
+    if (mnt == NULL)
+        return NULL;
+    if (opt == NULL)
+        return NULL;
+    if (mnt->mnt_opts == NULL)
+        return NULL;
+
+    len = strlen(opt);
+    s = strstr(mnt->mnt_opts, opt);
+    if (s == NULL)
+        return NULL;
+    if ((s == mnt->mnt_opts || *(s-1) == ',') &&  (s[len] == 0 || s[len] == ','))
+        return (char *)opt;
+    return NULL;
+}
+
+static void
+winCheckMount(void)
+{
+  FILE *mnt;
+  struct mntent *ent;
+
+  enum { none = 0, sys_root, user_root, sys_tmp, user_tmp } 
+    level = none, curlevel;
+  BOOL binary = TRUE;
+
+  mnt = setmntent("/etc/mtab", "r");
+  if (mnt == NULL)
+  {
+    ErrorF("setmntent failed");
+    return;
+  }
+
+  while ((ent = getmntent(mnt)) != NULL)
+  {
+    BOOL system = (winCheckMntOpt(ent, "user") != NULL);
+    BOOL root = (strcmp(ent->mnt_dir, "/") == 0);
+    BOOL tmp = (strcmp(ent->mnt_dir, "/tmp") == 0);
+    
+    if (system)
+    {
+      if (root)
+        curlevel = sys_root;
+      else if (tmp)
+        curlevel = sys_tmp;
+      else
+        continue;
+    }
+    else
+    {
+      if (root)
+        curlevel = user_root;
+      else if (tmp) 
+        curlevel = user_tmp;
+      else
+        continue;
+    }
+
+    if (curlevel <= level)
+      continue;
+    level = curlevel;
+
+    if ((winCheckMntOpt(ent, "binary") == NULL) &&
+        (winCheckMntOpt(ent, "binmode") == NULL))
+      binary = FALSE;
+    else
+      binary = TRUE;
+  }
+    
+  if (endmntent(mnt) != 1)
+  {
+    ErrorF("endmntent failed");
+    return;
+  }
+  
+#ifdef WINDBG
+  if (!binary) 
+    winDebug("/tmp mounted in textmode\n");
+#endif
+}
+#else
+static void
+winCheckMount(void) 
+{
+}
+#endif
+
+#ifdef RELOCATE_PROJECTROOT
+const char * 
+winGetBaseDir(void)
+{
+    static BOOL inited = FALSE;
+    static char buffer[MAX_PATH];
+    if (!inited)
+    {
+        char *fendptr;
+        HMODULE module = GetModuleHandle(NULL);
+        DWORD size = GetModuleFileName(module, buffer, sizeof(buffer));
+        if (sizeof(buffer) > 0)
+            buffer[sizeof(buffer)-1] = 0;
+    
+        fendptr = buffer + size;
+        while (fendptr > buffer)
+        {
+            if (*fendptr == '\\' || *fendptr == '/')
+            {
+                *fendptr = 0;
+                break;
+            }
+            fendptr--;
+        }
+        inited = TRUE;
+    }
+    return buffer;
+}
+#endif
+
+static void
+winFixupPaths (void)
+{
+    BOOL changed_fontpath = FALSE;
+    MessageType font_from = X_DEFAULT;
+#ifdef RELOCATE_PROJECTROOT
+    const char *basedir = winGetBaseDir();
+    size_t basedirlen = strlen(basedir);
+#endif
+
+#ifdef READ_FONTDIRS
+    {
+        /* Open fontpath configuration file */
+#if defined WIN32 && defined __MINGW32__
+        static Bool once = False;
+        char buffer[MAX_PATH];
+        snprintf(buffer, sizeof(buffer), "%s\\font-dirs", basedir);
+        buffer[sizeof(buffer)-1] = 0;
+        FILE *fontdirs = fopen(buffer, "rt");
+        if (once) fontdirs = NULL;
+        else once = True;
+#else
+        FILE *fontdirs = fopen(ETCX11DIR "/font-dirs", "rt");
+#endif
+        if (fontdirs != NULL)
+        {
+            char buffer[256];
+            int needs_sep = TRUE; 
+            int comment_block = FALSE;
+
+            /* get defautl fontpath */
+            char *fontpath = xstrdup(defaultFontPath);
+            size_t size = strlen(fontpath);
+
+            /* read all lines */
+            while (!feof(fontdirs))
+            {
+                size_t blen;
+                char *hashchar;
+                char *str;
+                int has_eol = FALSE;
+
+                /* read one line */
+                str = fgets(buffer, sizeof(buffer), fontdirs);
+                if (str == NULL) /* stop on error or eof */
+                    break;
+
+                if (strchr(str, '\n') != NULL)
+                    has_eol = TRUE;
+
+                /* check if block is continued comment */
+                if (comment_block)
+                {
+                    /* ignore all input */
+                    *str = 0; 
+                    blen = 0; 
+                    if (has_eol) /* check if line ended in this block */
+                        comment_block = FALSE;
+                }
+                else 
+                {
+                    /* find comment character. ignore all trailing input */
+                    hashchar = strchr(str, '#');
+                    if (hashchar != NULL)
+                    {
+                        *hashchar = 0;
+                        if (!has_eol) /* mark next block as continued comment */
+                            comment_block = TRUE;
+                    }
+                }
+
+                /* strip whitespaces from beginning */
+                while (*str == ' ' || *str == '\t')
+                    str++;
+
+                /* get size, strip whitespaces from end */ 
+                blen = strlen(str);
+                while (blen > 0 && (str[blen-1] == ' ' || 
+                            str[blen-1] == '\t' || str[blen-1] == '\n'))
+                {
+                    str[--blen] = 0;
+                }
+
+                /* still something left to add? */ 
+                if (blen > 0)
+                {
+                    size_t newsize = size + blen;
+                    /* reserve one character more for ',' */
+                    if (needs_sep)
+                        newsize++;
+
+                    /* allocate memory */
+                    if (fontpath == NULL)
+                        fontpath = malloc(newsize+1);
+                    else
+                        fontpath = realloc(fontpath, newsize+1);
+
+                    /* add separator */
+                    if (needs_sep)
+                    {
+                        fontpath[size] = ',';
+                        size++;
+                        needs_sep = FALSE;
+                    }
+
+                    /* mark next line as new entry */
+                    if (has_eol)
+                        needs_sep = TRUE;
+
+                    /* add block */
+                    strncpy(fontpath + size, str, blen);
+                    fontpath[newsize] = 0;
+                    size = newsize;
+                }
+            }
+
+            /* cleanup */
+            fclose(fontdirs);  
+            defaultFontPath = xstrdup(fontpath);
+            free(fontpath);
+            changed_fontpath = TRUE;
+            font_from = X_CONFIG;
+        }
+    }
+#endif /* READ_FONTDIRS */
+#ifdef RELOCATE_PROJECTROOT
+    {
+        const char *libx11dir = PROJECTROOT "/lib/X11";
+        size_t libx11dir_len = strlen(libx11dir);
+        char *newfp = NULL;
+        size_t newfp_len = 0;
+        const char *endptr, *ptr, *oldptr = defaultFontPath;
+
+        endptr = oldptr + strlen(oldptr);
+        ptr = strchr(oldptr, ',');
+        if (ptr == NULL)
+            ptr = endptr;
+        while (ptr != NULL)
+        {
+            size_t oldfp_len = (ptr - oldptr);
+            size_t newsize = oldfp_len;
+            char *newpath = malloc(newsize + 1);
+            strncpy(newpath, oldptr, newsize);
+            newpath[newsize] = 0;
+
+
+            if (strncmp(libx11dir, newpath, libx11dir_len) == 0)
+            {
+                char *compose;
+                newsize = newsize - libx11dir_len + basedirlen;
+                compose = malloc(newsize + 1);  
+                strcpy(compose, basedir);
+                strncat(compose, newpath + libx11dir_len, newsize - basedirlen);
+                compose[newsize] = 0;
+                free(newpath);
+                newpath = compose;
+            }
+
+            oldfp_len = newfp_len;
+            if (oldfp_len > 0)
+                newfp_len ++; /* space for separator */
+            newfp_len += newsize;
+
+            if (newfp == NULL)
+                newfp = malloc(newfp_len + 1);
+            else
+                newfp = realloc(newfp, newfp_len + 1);
+
+            if (oldfp_len > 0)
+            {
+                strcpy(newfp + oldfp_len, ",");
+                oldfp_len++;
+            }
+            strcpy(newfp + oldfp_len, newpath);
+
+            free(newpath);
+
+            if (*ptr == 0)
+            {
+                oldptr = ptr;
+                ptr = NULL;
+            } else
+            {
+                oldptr = ptr + 1;
+                ptr = strchr(oldptr, ',');
+                if (ptr == NULL)
+                    ptr = endptr;
+            }
+        } 
+
+        defaultFontPath = xstrdup(newfp);
+        free(newfp);
+        changed_fontpath = TRUE;
+    }
+#endif /* RELOCATE_PROJECTROOT */
+    if (changed_fontpath)
+        winDebug ("FontPath set to \"%s\"\n", defaultFontPath);
+
+#ifdef RELOCATE_PROJECTROOT
+    if (getenv("XKEYSYMDB") == NULL)
+    {
+        char buffer[MAX_PATH];
+        snprintf(buffer, sizeof(buffer), "XKEYSYMDB=%s\\XKeysymDB",
+                basedir);
+        buffer[sizeof(buffer)-1] = 0;
+        putenv(buffer);
+    }
+    if (getenv("XERRORDB") == NULL)
+    {
+        char buffer[MAX_PATH];
+        snprintf(buffer, sizeof(buffer), "XERRORDB=%s\\XErrorDB",
+                basedir);
+        buffer[sizeof(buffer)-1] = 0;
+        putenv(buffer);
+    }
+    if (getenv("XLOCALEDIR") == NULL)
+    {
+        char buffer[MAX_PATH];
+        snprintf(buffer, sizeof(buffer), "XLOCALEDIR=%s\\locale",
+                basedir);
+        buffer[sizeof(buffer)-1] = 0;
+        putenv(buffer);
+    }
+    if (getenv("XHOSTPREFIX") == NULL)
+    {
+        char buffer[MAX_PATH];
+        snprintf(buffer, sizeof(buffer), "XHOSTPREFIX=%s\\X",
+                basedir);
+        buffer[sizeof(buffer)-1] = 0;
+        putenv(buffer);
+    }
+    if (getenv("HOME") == NULL)
+    {
+        HMODULE shfolder;
+        SHGETFOLDERPATHPROC shgetfolderpath = NULL;
+        char buffer[MAX_PATH + 5];
+        strncpy(buffer, "HOME=", 5);
+
+        /* Try to load SHGetFolderPath from shfolder.dll and shell32.dll */
+        
+        shfolder = LoadLibrary("shfolder.dll");
+        /* fallback to shell32.dll */
+        if (shfolder == NULL)
+            shfolder = LoadLibrary("shell32.dll");
+
+        /* resolve SHGetFolderPath */
+        if (shfolder != NULL)
+            shgetfolderpath = (SHGETFOLDERPATHPROC)GetProcAddress(shfolder, "SHGetFolderPathA");
+
+        /* query appdata directory */
+        if (shgetfolderpath &&
+                shgetfolderpath(NULL, CSIDL_APPDATA|CSIDL_FLAG_CREATE, NULL, 0, 
+                    buffer + 5) == 0)
+        { 
+            putenv(buffer);
+        } else
+        {
+            ErrorF ("Can not determine HOME directory\n");
+        } 
+        if (shfolder != NULL)
+            FreeLibrary(shfolder);
+    }
+    if (!g_fLogFileChanged) {
+        static char buffer[MAX_PATH];
+        DWORD size = GetTempPath(sizeof(buffer), buffer);
+        if (size && size < sizeof(buffer))
+        {
+            snprintf(buffer + size, sizeof(buffer) - size, 
+                    "VCXSrv.%s.log", display); 
+            buffer[sizeof(buffer)-1] = 0;
+            g_pszLogFile = buffer;
+            GetLongPathName(buffer, buffer, MAX_PATH);
+            winDebug ("Logfile set to \"%s\"\n", g_pszLogFile);
+        }
+    }
+    {
+        static char xkbbasedir[MAX_PATH];
+
+        snprintf(xkbbasedir, sizeof(xkbbasedir), "%s\\xkbdata", basedir);
+        if (sizeof(xkbbasedir) > 0)
+            xkbbasedir[sizeof(xkbbasedir)-1] = 0;
+        XkbBaseDirectory = xkbbasedir;
+	XkbBinDirectory = basedir;
+    }
+#endif /* RELOCATE_PROJECTROOT */
+}
+
+void
+OsVendorInit (void)
+{
+  /* Re-initialize global variables on server reset */
+  winInitializeGlobals ();
+
+  winFixupPaths();
+
+#ifdef DDXOSVERRORF
+  if (!OsVendorVErrorFProc)
+    OsVendorVErrorFProc = OsVendorVErrorF;
+#endif
+
+  if (!g_fLogInited) {
+    /* keep this order. If LogInit fails it calls Abort which then calls
+     * ddxGiveUp where LogInit is called again and creates an infinite 
+     * recursion. If we set g_fLogInited to TRUE before the init we 
+     * avoid the second call 
+     */  
+    g_fLogInited = TRUE;
+    g_pszLogFile = LogInit (g_pszLogFile, NULL);
+  } 
+  LogSetParameter (XLOG_FLUSH, 1);
+  LogSetParameter (XLOG_VERBOSITY, g_iLogVerbose);
+  LogSetParameter (XLOG_FILE_VERBOSITY, g_iLogVerbose);
+
+  /* Log the version information */
+  if (serverGeneration == 1)
+    winLogVersionInfo ();
+
+  winCheckMount();  
+
+  /* Add a default screen if no screens were specified */
+  if (g_iNumScreens == 0)
+    {
+      winDebug ("OsVendorInit - Creating default screen 0\n");
+
+      /*
+       * We need to initialize the default screen 0 if no -screen
+       * arguments were processed.
+       *
+       * Add a screen 0 using the defaults set by winInitializeDefaultScreens()
+       * and any additional default screen parameters given
+       */
+      winInitializeScreens(1);
+
+      /* We have to flag this as an explicit screen, even though it isn't */
+      g_ScreenInfo[0].fExplicitScreen = TRUE;
+    }
+}
+
+
+static void
+winUseMsg (void)
+{
+  ErrorF("\n");
+  ErrorF("\n");
+  ErrorF(EXECUTABLE_NAME " Device Dependent Usage:\n");
+  ErrorF("\n");
+
+#ifdef XWIN_CLIPBOARD
+  ErrorF ("-[no]clipboard\n"
+	  "\tEnable [disable] the clipboard integration. Default is enabled.\n");
+#endif
+
+  ErrorF ("-clipupdates num_boxes\n"
+	  "\tUse a clipping region to constrain shadow update blits to\n"
+	  "\tthe updated region when num_boxes, or more, are in the\n"
+	  "\tupdated region.\n");
+
+#ifdef XWIN_XF86CONFIG
+  ErrorF ("-config\n"
+          "\tSpecify a configuration file.\n");
+
+  ErrorF ("-configdir\n"
+          "\tSpecify a configuration directory.\n");
+#endif
+
+  ErrorF ("-depth bits_per_pixel\n"
+	  "\tSpecify an optional bitdepth to use in fullscreen mode\n"
+	  "\twith a DirectDraw engine.\n");
+
+  ErrorF ("-emulate3buttons [timeout]\n"
+	  "\tEmulate 3 button mouse with an optional timeout in\n"
+	  "\tmilliseconds.\n");
+
+#ifdef XWIN_EMULATEPSEUDO
+  ErrorF ("-emulatepseudo\n"
+	  "\tCreate a depth 8 PseudoColor visual when running in\n"
+	  "\tdepths 15, 16, 24, or 32, collectively known as TrueColor\n"
+	  "\tdepths.  The PseudoColor visual does not have correct colors,\n"
+	  "\tand it may crash, but it at least allows you to run your\n"
+	  "\tapplication in TrueColor modes.\n");
+#endif
+
+  ErrorF ("-engine engine_type_id\n"
+	  "\tOverride the server's automatically selected engine type:\n"
+	  "\t\t1 - Shadow GDI\n"
+	  "\t\t2 - Shadow DirectDraw\n"
+	  "\t\t4 - Shadow DirectDraw4 Non-Locking\n"
+#ifdef XWIN_PRIMARYFB
+	  "\t\t8 - Primary DirectDraw\n"
+#endif
+#ifdef XWIN_NATIVEGDI
+	  "\t\t16 - Native GDI - experimental\n"
+#endif
+	  );
+
+  ErrorF ("-fullscreen\n"
+	  "\tRun the server in fullscreen mode.\n");
+
+  ErrorF ("-ignoreinput\n"
+	  "\tIgnore keyboard and mouse input.\n");
+
+#ifdef XWIN_MULTIWINDOWEXTWM
+  ErrorF ("-internalwm\n"
+	  "\tRun the internal window manager.\n");
+#endif
+
+#ifdef XWIN_XF86CONFIG
+  ErrorF ("-keyboard\n"
+	  "\tSpecify a keyboard device from the configuration file.\n");
+#endif
+
+  ErrorF ("-[no]keyhook\n"
+	  "\tGrab special Windows keypresses like Alt-Tab or the Menu "
+          "key.\n");
+
+  ErrorF ("-lesspointer\n"
+	  "\tHide the windows mouse pointer when it is over any\n"
+          "\t" EXECUTABLE_NAME " window.  This prevents ghost cursors appearing when\n"
+	  "\tthe Windows cursor is drawn on top of the X cursor\n");
+
+  ErrorF ("-logfile filename\n"
+	  "\tWrite log messages to <filename>.\n");
+
+  ErrorF ("-logverbose verbosity\n"
+	  "\tSet the verbosity of log messages. [NOTE: Only a few messages\n"
+	  "\trespect the settings yet]\n"
+	  "\t\t0 - only print fatal error.\n"
+	  "\t\t1 - print additional configuration information.\n"
+	  "\t\t2 - print additional runtime information [default].\n"
+	  "\t\t3 - print debugging and tracing information.\n");
+
+  ErrorF ("-[no]multimonitors or -[no]multiplemonitors\n"
+	  "\tUse the entire virtual screen if multiple\n"
+	  "\tmonitors are present.\n");
+
+#ifdef XWIN_MULTIWINDOW
+  ErrorF ("-multiwindow\n"
+	  "\tRun the server in multi-window mode.\n");
+#endif
+
+#ifdef XWIN_MULTIWINDOWEXTWM
+  ErrorF ("-mwextwm\n"
+	  "\tRun the server in multi-window external window manager mode.\n");
+#endif
+
+  ErrorF ("-nodecoration\n"
+          "\tDo not draw a window border, title bar, etc.  Windowed\n"
+	  "\tmode only.\n");
+
+#ifdef XWIN_CLIPBOARD
+  ErrorF ("-nounicodeclipboard\n"
+	  "\tDo not use Unicode clipboard even if on a NT-based platform.\n");
+#endif
+
+  ErrorF ("-refresh rate_in_Hz\n"
+	  "\tSpecify an optional refresh rate to use in fullscreen mode\n"
+	  "\twith a DirectDraw engine.\n");
+
+  ErrorF ("-rootless\n"
+	  "\tRun the server in rootless mode.\n");
+
+  ErrorF ("-screen scr_num [width height [x y] | [[WxH[+X+Y]][@m]] ]\n"
+	  "\tEnable screen scr_num and optionally specify a width and\n"
+	  "\theight and initial position for that screen. Additionally\n"
+	  "\ta monitor number can be specified to start the server on,\n"
+	  "\tat which point, all coordinates become relative to that\n"
+      "\tmonitor (Not for Windows NT4 and 95). Examples:\n"
+      "\t -screen 0 800x600+100+100@2 ; 2nd monitor offset 100,100 size 800x600\n"
+      "\t -screen 0 1024x768@3        ; 3rd monitor size 1024x768\n"
+      "\t -screen 0 @1 ; on 1st monitor using its full resolution (the default)\n");
+
+  ErrorF ("-scrollbars\n"
+	  "\tIn windowed mode, allow screens bigger than the Windows desktop.\n"
+	  "\tMoreover, if the window has decorations, one can now resize\n"
+	  "\tit.\n");
+
+  ErrorF ("-silent-dup-error\n"
+	  "\tIf another instance of " EXECUTABLE_NAME " with the same display number is running\n"
+     "\texit silently and don’t display any error message.\n");
+
+  ErrorF ("-swcursor\n"
+	  "\tDisable the usage of the Windows cursor and use the X11 software\n"
+	  "\tcursor instead.\n");
+
+  ErrorF ("-[no]trayicon\n"
+          "\tDo not create a tray icon.  Default is to create one\n"
+	  "\ticon per screen.  You can globally disable tray icons with\n"
+	  "\t-notrayicon, then enable it for specific screens with\n"
+	  "\t-trayicon for those screens.\n");
+
+  ErrorF ("-[no]unixkill\n"
+          "\tCtrl+Alt+Backspace exits the X Server.\n");
+
+#ifdef XWIN_GLX_WINDOWS
+  ErrorF ("-[no]wgl\n"
+	  "\tEnable the GLX extension to use the native Windows WGL interface for accelerated OpenGL\n");
+#endif
+
+  ErrorF ("-[no]winkill\n"
+          "\tAlt+F4 exits the X Server.\n");
+
+  ErrorF ("-xkblayout XKBLayout\n"
+	  "\tEquivalent to XKBLayout in XF86Config files.\n"
+	  "\tFor example: -xkblayout de\n");
+
+  ErrorF ("-xkbmodel XKBModel\n"
+	  "\tEquivalent to XKBModel in XF86Config files.\n");
+
+  ErrorF ("-xkboptions XKBOptions\n"
+	  "\tEquivalent to XKBOptions in XF86Config files.\n");
+
+  ErrorF ("-xkbrules XKBRules\n"
+	  "\tEquivalent to XKBRules in XF86Config files.\n");
+
+  ErrorF ("-xkbvariant XKBVariant\n"
+	  "\tEquivalent to XKBVariant in XF86Config files.\n"
+	  "\tFor example: -xkbvariant nodeadkeys\n");
+}
+
+/* See Porting Layer Definition - p. 57 */
+void
+ddxUseMsg(void)
+{
+  /* Set a flag so that FatalError won't give duplicate warning message */
+  g_fSilentFatalError = TRUE;
+  
+  winUseMsg();  
+
+  /* Log file will not be opened for UseMsg unless we open it now */
+  if (!g_fLogInited) {
+    g_pszLogFile = LogInit (g_pszLogFile, NULL);
+    g_fLogInited = TRUE;
+  }  
+  LogClose ();
+
+  /* Notify user where UseMsg text can be found.*/
+  if (!g_fNoHelpMessageBox)
+    winMessageBoxF ("The " PROJECT_NAME " help text has been printed to "
+		  "%s.\n"
+		  "Please open %s to read the help text.\n",
+		  MB_ICONINFORMATION, g_pszLogFile, g_pszLogFile);
+}
+
+/* See Porting Layer Definition - p. 20 */
+/*
+ * Do any global initialization, then initialize each screen.
+ * 
+ * NOTE: We use ddxProcessArgument, so we don't need to touch argc and argv
+ */
+
+void
+InitOutput (ScreenInfo *screenInfo, int argc, char *argv[])
+{
+  int		i;
+
+  /* Log the command line */
+  winLogCommandLine (argc, argv);
+
+  winDebug ("InitOutput\n");
+
+  /* Validate command-line arguments */
+  if (serverGeneration == 1 && !winValidateArgs ())
+    {
+      FatalError ("InitOutput - Invalid command-line arguments found.  "
+		  "Exiting.\n");
+    }
+
+  /* Check for duplicate invocation on same display number.*/
+  if (serverGeneration == 1 && !winCheckDisplayNumber ())
+    {
+      if (g_fSilentDupError)
+        g_fSilentFatalError = TRUE;  
+      FatalError ("InitOutput - Duplicate invocation on display "
+		  "number: %s.  Exiting.\n", display);
+    }
+
+#ifdef XWIN_XF86CONFIG
+  /* Try to read the xorg.conf-style configuration file */
+  if (!winReadConfigfile ())
+    ErrorF ("InitOutput - Error reading config file\n");
+#else
+  winConfigFiles ();
+#endif
+
+  /* Load preferences from XWinrc file */
+  LoadPreferences();
+
+  /* Setup global screen info parameters */
+  screenInfo->imageByteOrder = IMAGE_BYTE_ORDER;
+  screenInfo->bitmapScanlinePad = BITMAP_SCANLINE_PAD;
+  screenInfo->bitmapScanlineUnit = BITMAP_SCANLINE_UNIT;
+  screenInfo->bitmapBitOrder = BITMAP_BIT_ORDER;
+  screenInfo->numPixmapFormats = NUMFORMATS;
+  
+  /* Describe how we want common pixmap formats padded */
+  for (i = 0; i < NUMFORMATS; i++)
+    {
+      screenInfo->formats[i] = g_PixmapFormats[i];
+    }
+
+  /* Load pointers to DirectDraw functions */
+  winGetDDProcAddresses ();
+  
+  /* Detect supported engines */
+  winDetectSupportedEngines ();
+
+  /* Load common controls library */
+  g_hmodCommonControls = LoadLibraryEx ("comctl32.dll", NULL, 0);
+
+  /* Load TrackMouseEvent function pointer */  
+  g_fpTrackMouseEvent = GetProcAddress (g_hmodCommonControls,
+					 "_TrackMouseEvent");
+  if (g_fpTrackMouseEvent == NULL)
+    {
+      ErrorF ("InitOutput - Could not get pointer to function\n"
+	      "\t_TrackMouseEvent in comctl32.dll.  Try installing\n"
+	      "\tInternet Explorer 3.0 or greater if you have not\n"
+	      "\talready.\n");
+
+      /* Free the library since we won't need it */
+      FreeLibrary (g_hmodCommonControls);
+      g_hmodCommonControls = NULL;
+
+      /* Set function pointer to point to no operation function */
+      g_fpTrackMouseEvent = (FARPROC) (void (*)(void))NoopDDA;
+    }
+
+  /* Store the instance handle */
+  g_hInstance = GetModuleHandle (NULL);
+
+  /* Initialize each screen */
+  for (i = 0; i < g_iNumScreens; ++i)
+    {
+      /* Initialize the screen */
+      if (-1 == AddScreen (winScreenInit, argc, argv))
+	{
+	  FatalError ("InitOutput - Couldn't add screen %d", i);
+	}
+    }
+
+#if defined(XWIN_CLIPBOARD) || defined(XWIN_MULTIWINDOW)
+
+  /* Generate a cookie used by internal clients for authorization */
+  if (g_fXdmcpEnabled || g_fAuthEnabled)
+    winGenerateAuthorization ();
+
+  /* Perform some one time initialization */
+  if (1 == serverGeneration)
+    {
+      /*
+       * setlocale applies to all threads in the current process.
+       * Apply locale specified in LANG environment variable.
+       */
+      setlocale (LC_ALL, "");
+
+      glx_debugging();
+    }
+#endif
+
+  winDebug ("InitOutput - Returning.\n");
+}
+
+
+/*
+ * winCheckDisplayNumber - Check if another instance of Cygwin/X is
+ * already running on the same display number.  If no one exists,
+ * make a mutex to prevent new instances from running on the same display.
+ *
+ * return FALSE if the display number is already used.
+ */
+
+static Bool
+winCheckDisplayNumber (void)
+{
+  int			nDisp;
+  HANDLE		mutex;
+  char			name[MAX_PATH];
+  char *		pszPrefix = '\0';
+  OSVERSIONINFO		osvi = {0};
+
+  /* Check display range */
+  nDisp = atoi (display);
+  if (nDisp < 0 || nDisp > 59535)
+    {
+      ErrorF ("winCheckDisplayNumber - Bad display number: %d\n", nDisp);
+      return FALSE;
+    }
+
+  /* Set first character of mutex name to null */
+  name[0] = '\0';
+
+  /* Get operating system version information */
+  osvi.dwOSVersionInfoSize = sizeof (osvi);
+  GetVersionEx (&osvi);
+
+  /* Want a mutex shared among all terminals on NT > 4.0 */
+  if (osvi.dwPlatformId == VER_PLATFORM_WIN32_NT
+      && osvi.dwMajorVersion >= 5)
+    {
+      pszPrefix = "Global\\";
+    }
+
+  /* Setup Cygwin/X specific part of name */
+  snprintf (name, sizeof(name), "%sCYGWINX_DISPLAY:%d", pszPrefix, nDisp);
+
+  /* Windows automatically releases the mutex when this process exits */
+  mutex = CreateMutex (NULL, FALSE, name);
+  if (!mutex)
+    {
+      LPVOID lpMsgBuf;
+
+      /* Display a fancy error message */
+      FormatMessage (FORMAT_MESSAGE_ALLOCATE_BUFFER | 
+		     FORMAT_MESSAGE_FROM_SYSTEM | 
+		     FORMAT_MESSAGE_IGNORE_INSERTS,
+		     NULL,
+		     GetLastError (),
+		     MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+		     (LPTSTR) &lpMsgBuf,
+		     0, NULL);
+      ErrorF ("winCheckDisplayNumber - CreateMutex failed: %s\n",
+	      (LPSTR)lpMsgBuf);
+      LocalFree (lpMsgBuf);
+
+      return FALSE;
+    }
+  if (GetLastError () == ERROR_ALREADY_EXISTS)
+    {
+      ErrorF ("winCheckDisplayNumber - "
+	      "VCXsrv, Xming or Cygwin/X is already running on display %d\n",
+	      nDisp);
+      return FALSE;
+    }
+
+  return TRUE;
+}
+
+/* GLX debugging helpers */
+#include <../glx/glapi.h>
+
+static
+void warn_func(void * p1, const char *format, ...) {
+  va_list v;
+  va_start(v, format);
+  vfprintf(stderr, format, v);
+  va_end(v);
+  fprintf(stderr,"\n");
+}
+
+static
+void glx_debugging(void)
+{
+  _glapi_set_warning_func(warn_func);
+  _glapi_noop_enable_warnings(TRUE);
+}
diff --git a/xorg-server/hw/xwin/win.h b/xorg-server/hw/xwin/win.h
index 1adee2136..bb069afce 100644
--- a/xorg-server/hw/xwin/win.h
+++ b/xorg-server/hw/xwin/win.h
@@ -590,7 +590,7 @@ typedef struct {
  * Extern declares for general global variables
  */
 
-extern winScreenInfo		g_ScreenInfo[];
+extern winScreenInfo *		g_ScreenInfo;
 extern miPointerScreenFuncRec	g_winPointerCursorFuncs;
 extern DWORD			g_dwEvents;
 #ifdef HAS_DEVWINDOWS
@@ -1422,6 +1422,12 @@ Bool
 winInitCursor (ScreenPtr pScreen);
 
 /*
+ * winprocarg.c
+ */
+void
+winInitializeScreens(int maxscreens);
+
+/*
  * windisplay.c
  */
 
diff --git a/xorg-server/hw/xwin/winglobals.c b/xorg-server/hw/xwin/winglobals.c
index ce9c8aba4..09b75031e 100644
--- a/xorg-server/hw/xwin/winglobals.c
+++ b/xorg-server/hw/xwin/winglobals.c
@@ -1,146 +1,144 @@
-/*

- *Copyright (C) 2003-2004 Harold L Hunt II All Rights Reserved.

- *Copyright (C) Colin Harrison 2005-2008

- *

- *Permission is hereby granted, free of charge, to any person obtaining

- * a copy of this software and associated documentation files (the

- *"Software"), to deal in the Software without restriction, including

- *without limitation the rights to use, copy, modify, merge, publish,

- *distribute, sublicense, and/or sell copies of the Software, and to

- *permit persons to whom the Software is furnished to do so, subject to

- *the following conditions:

- *

- *The above copyright notice and this permission notice shall be

- *included in all copies or substantial portions of the Software.

- *

- *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

- *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

- *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

- *NONINFRINGEMENT. IN NO EVENT SHALL HAROLD L HUNT II BE LIABLE FOR

- *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF

- *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION

- *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

- *

- *Except as contained in this notice, the name of Harold L Hunt II

- *shall not be used in advertising or otherwise to promote the sale, use

- *or other dealings in this Software without prior written authorization

- *from Harold L Hunt II.

- *

- * Authors:	Harold L Hunt II

- *              Colin Harrison

- */

-

-#ifdef HAVE_XWIN_CONFIG_H

-#include <xwin-config.h>

-#endif

-#include "win.h"

-

-

-/*

- * General global variables

- */

-

-int		g_iNumScreens = 0;

-winScreenInfo	g_ScreenInfo[MAXSCREENS];

-int		g_iLastScreen = -1;

-#ifdef HAS_DEVWINDOWS

-int		g_fdMessageQueue = WIN_FD_INVALID;

-#endif

-static int	g_iScreenPrivateKeyIndex;

-DevPrivateKey	g_iScreenPrivateKey = &g_iScreenPrivateKeyIndex;

-static int	g_iCmapPrivateKeyIndex;

-DevPrivateKey	g_iCmapPrivateKey = &g_iCmapPrivateKeyIndex;

-static int	g_iGCPrivateKeyIndex;

-DevPrivateKey	g_iGCPrivateKey = &g_iGCPrivateKeyIndex;

-static int	g_iPixmapPrivateKeyIndex;

-DevPrivateKey	g_iPixmapPrivateKey = &g_iPixmapPrivateKeyIndex;

-static int	g_iWindowPrivateKeyIndex;

-DevPrivateKey	g_iWindowPrivateKey = &g_iWindowPrivateKeyIndex;

-unsigned long	g_ulServerGeneration = 0;

-Bool		g_fInitializedDefaultScreens = FALSE;

-DWORD		g_dwEnginesSupported = 0;

-HINSTANCE	g_hInstance = 0;

-HWND		g_hDlgDepthChange = NULL;

-HWND		g_hDlgExit = NULL;

-HWND		g_hDlgAbout = NULL;

-const char *	g_pszQueryHost = NULL;

-Bool		g_fXdmcpEnabled = FALSE;

-Bool           g_fAuthEnabled = FALSE;

-HICON		g_hIconX = NULL;

-HICON		g_hSmallIconX = NULL;

-#ifndef RELOCATE_PROJECTROOT

-const char *	g_pszLogFile = DEFAULT_LOGDIR "/XWin.%s.log";

-#else

-const char *	g_pszLogFile = "XWin.log";

-Bool		g_fLogFileChanged = FALSE;

-#endif

-int		g_iLogVerbose = 2;

-Bool		g_fLogInited = FALSE;

-char *		g_pszCommandLine = NULL;

-Bool		g_fSilentFatalError = FALSE;

-DWORD		g_dwCurrentThreadID = 0;

-Bool		g_fKeyboardHookLL = FALSE;

-HHOOK		g_hhookKeyboardLL = NULL;

-HWND		g_hwndKeyboardFocus = NULL;

-Bool		g_fNoHelpMessageBox = FALSE;

-Bool		g_fSoftwareCursor = FALSE;

-Bool		g_fSilentDupError = FALSE;

-Bool		g_fNativeGl = FALSE;

-

-/*

- * Global variables for dynamically loaded libraries and

- * their function pointers

- */

-

-HMODULE		g_hmodDirectDraw = NULL;

-FARPROC		g_fpDirectDrawCreate = NULL;

-FARPROC		g_fpDirectDrawCreateClipper = NULL;

-

-HMODULE		g_hmodCommonControls = NULL;

-FARPROC		g_fpTrackMouseEvent = (FARPROC) (void (*)(void))NoopDDA;

-

-

-#ifdef XWIN_CLIPBOARD

-/*

- * Wrapped DIX functions

- */

-winDispatchProcPtr	winProcEstablishConnectionOrig = NULL;

-winDispatchProcPtr	winProcQueryTreeOrig = NULL;

-winDispatchProcPtr	winProcSetSelectionOwnerOrig = NULL;

-

-

-/*

- * Clipboard variables

- */

-

-Bool			g_fUnicodeClipboard = TRUE;

-Bool			g_fClipboard = TRUE;

-Bool			g_fClipboardLaunched = FALSE;

-Bool			g_fClipboardStarted = FALSE;

-pthread_t		g_ptClipboardProc;

-HWND			g_hwndClipboard = NULL;

-void			*g_pClipboardDisplay = NULL;

-Window			g_iClipboardWindow = None;

-Atom			g_atomLastOwnedSelection = None;

-#endif

-

-

-/*

- * Re-initialize global variables that are invalidated

- * by a server reset.

- */

-

-void

-winInitializeGlobals (void)

-{

-  g_dwCurrentThreadID = GetCurrentThreadId ();

-  g_hwndKeyboardFocus = NULL;

-#ifdef XWIN_CLIPBOARD

-  g_fClipboardLaunched = FALSE;

-  g_fClipboardStarted = FALSE;

-  g_iClipboardWindow = None;

-  g_pClipboardDisplay = NULL;

-  g_atomLastOwnedSelection = None;

-  g_hwndClipboard = NULL;

-#endif

-}

+/*
+ *Copyright (C) 2003-2004 Harold L Hunt II All Rights Reserved.
+ *Copyright (C) Colin Harrison 2005-2008
+ *
+ *Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ *"Software"), to deal in the Software without restriction, including
+ *without limitation the rights to use, copy, modify, merge, publish,
+ *distribute, sublicense, and/or sell copies of the Software, and to
+ *permit persons to whom the Software is furnished to do so, subject to
+ *the following conditions:
+ *
+ *The above copyright notice and this permission notice shall be
+ *included in all copies or substantial portions of the Software.
+ *
+ *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *NONINFRINGEMENT. IN NO EVENT SHALL HAROLD L HUNT II BE LIABLE FOR
+ *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+ *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ *Except as contained in this notice, the name of Harold L Hunt II
+ *shall not be used in advertising or otherwise to promote the sale, use
+ *or other dealings in this Software without prior written authorization
+ *from Harold L Hunt II.
+ *
+ * Authors:	Harold L Hunt II
+ *              Colin Harrison
+ */
+
+#ifdef HAVE_XWIN_CONFIG_H
+#include <xwin-config.h>
+#endif
+#include "win.h"
+
+
+/*
+ * General global variables
+ */
+
+int		g_iNumScreens = 0;
+winScreenInfo * g_ScreenInfo = 0;
+#ifdef HAS_DEVWINDOWS
+int		g_fdMessageQueue = WIN_FD_INVALID;
+#endif
+static int	g_iScreenPrivateKeyIndex;
+DevPrivateKey	g_iScreenPrivateKey = &g_iScreenPrivateKeyIndex;
+static int	g_iCmapPrivateKeyIndex;
+DevPrivateKey	g_iCmapPrivateKey = &g_iCmapPrivateKeyIndex;
+static int	g_iGCPrivateKeyIndex;
+DevPrivateKey	g_iGCPrivateKey = &g_iGCPrivateKeyIndex;
+static int	g_iPixmapPrivateKeyIndex;
+DevPrivateKey	g_iPixmapPrivateKey = &g_iPixmapPrivateKeyIndex;
+static int	g_iWindowPrivateKeyIndex;
+DevPrivateKey	g_iWindowPrivateKey = &g_iWindowPrivateKeyIndex;
+unsigned long	g_ulServerGeneration = 0;
+DWORD		g_dwEnginesSupported = 0;
+HINSTANCE	g_hInstance = 0;
+HWND		g_hDlgDepthChange = NULL;
+HWND		g_hDlgExit = NULL;
+HWND		g_hDlgAbout = NULL;
+const char *	g_pszQueryHost = NULL;
+Bool		g_fXdmcpEnabled = FALSE;
+Bool           g_fAuthEnabled = FALSE;
+HICON		g_hIconX = NULL;
+HICON		g_hSmallIconX = NULL;
+#ifndef RELOCATE_PROJECTROOT
+const char *	g_pszLogFile = DEFAULT_LOGDIR "/XWin.%s.log";
+#else
+const char *	g_pszLogFile = "XWin.log";
+Bool		g_fLogFileChanged = FALSE;
+#endif
+int		g_iLogVerbose = 2;
+Bool		g_fLogInited = FALSE;
+char *		g_pszCommandLine = NULL;
+Bool		g_fSilentFatalError = FALSE;
+DWORD		g_dwCurrentThreadID = 0;
+Bool		g_fKeyboardHookLL = FALSE;
+HHOOK		g_hhookKeyboardLL = NULL;
+HWND		g_hwndKeyboardFocus = NULL;
+Bool		g_fNoHelpMessageBox = FALSE;
+Bool		g_fSoftwareCursor = FALSE;
+Bool		g_fSilentDupError = FALSE;
+Bool		g_fNativeGl = FALSE;
+
+/*
+ * Global variables for dynamically loaded libraries and
+ * their function pointers
+ */
+
+HMODULE		g_hmodDirectDraw = NULL;
+FARPROC		g_fpDirectDrawCreate = NULL;
+FARPROC		g_fpDirectDrawCreateClipper = NULL;
+
+HMODULE		g_hmodCommonControls = NULL;
+FARPROC		g_fpTrackMouseEvent = (FARPROC) (void (*)(void))NoopDDA;
+
+
+#ifdef XWIN_CLIPBOARD
+/*
+ * Wrapped DIX functions
+ */
+winDispatchProcPtr	winProcEstablishConnectionOrig = NULL;
+winDispatchProcPtr	winProcQueryTreeOrig = NULL;
+winDispatchProcPtr	winProcSetSelectionOwnerOrig = NULL;
+
+
+/*
+ * Clipboard variables
+ */
+
+Bool			g_fUnicodeClipboard = TRUE;
+Bool			g_fClipboard = TRUE;
+Bool			g_fClipboardLaunched = FALSE;
+Bool			g_fClipboardStarted = FALSE;
+pthread_t		g_ptClipboardProc;
+HWND			g_hwndClipboard = NULL;
+void			*g_pClipboardDisplay = NULL;
+Window			g_iClipboardWindow = None;
+Atom			g_atomLastOwnedSelection = None;
+#endif
+
+
+/*
+ * Re-initialize global variables that are invalidated
+ * by a server reset.
+ */
+
+void
+winInitializeGlobals (void)
+{
+  g_dwCurrentThreadID = GetCurrentThreadId ();
+  g_hwndKeyboardFocus = NULL;
+#ifdef XWIN_CLIPBOARD
+  g_fClipboardLaunched = FALSE;
+  g_fClipboardStarted = FALSE;
+  g_iClipboardWindow = None;
+  g_pClipboardDisplay = NULL;
+  g_atomLastOwnedSelection = None;
+  g_hwndClipboard = NULL;
+#endif
+}
diff --git a/xorg-server/hw/xwin/winprocarg.c b/xorg-server/hw/xwin/winprocarg.c
index 3cd9353db..50e15ec10 100644
--- a/xorg-server/hw/xwin/winprocarg.c
+++ b/xorg-server/hw/xwin/winprocarg.c
@@ -1,1572 +1,1252 @@
-/*

-

-Copyright 1993, 1998  The Open Group

-Copyright (C) Colin Harrison 2005-2008

-

-Permission to use, copy, modify, distribute, and sell this software and its

-documentation for any purpose is hereby granted without fee, provided that

-the above copyright notice appear in all copies and that both that

-copyright notice and this permission notice appear in supporting

-documentation.

-

-The above copyright notice and this permission notice shall be included

-in all copies or substantial portions of the Software.

-

-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

-IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR

-OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,

-ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

-OTHER DEALINGS IN THE SOFTWARE.

-

-Except as contained in this notice, the name of The Open Group shall

-not be used in advertising or otherwise to promote the sale, use or

-other dealings in this Software without prior written authorization

-from The Open Group.

-

-*/

-

-#ifdef HAVE_XWIN_CONFIG_H

-#include <xwin-config.h>

-#endif

-#ifdef XVENDORNAME

-#define VENDOR_STRING XVENDORNAME

-#define VENDOR_CONTACT BUILDERADDR

-#endif

-#include <../xfree86/common/xorgVersion.h>

-#include "win.h"

-#include "winconfig.h"

-#include "winprefs.h"

-#include "winmsg.h"

-#define COMPILE_MULTIMON_STUBS

-#include <multimon.h>

-/*

- * References to external symbols

- */

-

-extern int			g_iNumScreens;

-extern winScreenInfo		g_ScreenInfo[];

-extern int			g_iLastScreen;

-extern Bool			g_fInitializedDefaultScreens;

-#ifdef XWIN_CLIPBOARD

-extern Bool			g_fUnicodeClipboard;

-extern Bool			g_fClipboard;

-#endif

-extern int			g_iLogVerbose;

-extern const char *		g_pszLogFile;

-#ifdef RELOCATE_PROJECTROOT

-extern Bool			g_fLogFileChanged;

-#endif

-extern Bool			g_fXdmcpEnabled;

-extern Bool			g_fAuthEnabled;

-extern char *			g_pszCommandLine;

-extern Bool			g_fKeyboardHookLL;

-extern Bool			g_fNoHelpMessageBox;                     

-extern Bool			g_fSoftwareCursor;

-extern Bool			g_fSilentDupError;

-extern Bool			g_fNativeGl;

-

-/* globals required by callback function for monitor information */

-struct GetMonitorInfoData {

-    int  requestedMonitor;

-    int  monitorNum;

-    Bool bUserSpecifiedMonitor;

-    Bool bMonitorSpecifiedExists;

-    int  monitorOffsetX;

-    int  monitorOffsetY;

-    int  monitorHeight;

-    int  monitorWidth;

-};

-

-wBOOL CALLBACK getMonitorInfo(HMONITOR hMonitor, HDC hdc, LPRECT rect, LPARAM _data);

-

-static Bool QueryMonitor(int index, struct GetMonitorInfoData *data)

-{

-    /* prepare data */

-    if (data == NULL)

-        return FALSE;

-    memset(data, 0, sizeof(*data));

-    data->requestedMonitor = index;

-

-    /* query information */

-    xEnumDisplayMonitors(NULL, NULL, getMonitorInfo, (LPARAM) data);

-

-    return TRUE;

-}

-

-/*

- * Function prototypes

- */

-

-void

-winLogCommandLine (int argc, char *argv[]);

-

-void

-winLogVersionInfo (void);

-

-#ifdef DDXOSVERRORF

-void OsVendorVErrorF (const char *pszFormat, va_list va_args);

-#endif

-

-void

-winInitializeDefaultScreens (void);

-

-/*

- * Process arguments on the command line

- */

-

-void

-winInitializeDefaultScreens (void)

-{

-  int                   i;

-  DWORD			dwWidth, dwHeight;

-

-  /* Bail out early if default screens have already been initialized */

-  if (g_fInitializedDefaultScreens)

-    return;

-

-  /* Zero the memory used for storing the screen info */

-  ZeroMemory (g_ScreenInfo, MAXSCREENS * sizeof (winScreenInfo));

-

-  /* Get default width and height */

-  /*

-   * NOTE: These defaults will cause the window to cover only

-   * the primary monitor in the case that we have multiple monitors.

-   */

-  dwWidth = GetSystemMetrics (SM_CXSCREEN);

-  dwHeight = GetSystemMetrics (SM_CYSCREEN);

-

-  winDebug ("winInitializeDefaultScreens - w %d h %d\n",

-	  (int) dwWidth, (int) dwHeight);

-

-  /* Set a default DPI, if no parameter was passed */

-  if (monitorResolution == 0)

-    monitorResolution = WIN_DEFAULT_DPI;

-

-  for (i = 0; i < MAXSCREENS; ++i)

-    {

-      g_ScreenInfo[i].dwScreen = i;

-      g_ScreenInfo[i].dwWidth  = dwWidth;

-      g_ScreenInfo[i].dwHeight = dwHeight;

-      g_ScreenInfo[i].dwUserWidth  = dwWidth;

-      g_ScreenInfo[i].dwUserHeight = dwHeight;

-      g_ScreenInfo[i].fUserGaveHeightAndWidth

-	=  WIN_DEFAULT_USER_GAVE_HEIGHT_AND_WIDTH;

-      g_ScreenInfo[i].fUserGavePosition = FALSE;

-      g_ScreenInfo[i].dwBPP = WIN_DEFAULT_BPP;

-      g_ScreenInfo[i].dwClipUpdatesNBoxes = WIN_DEFAULT_CLIP_UPDATES_NBOXES;

-#ifdef XWIN_EMULATEPSEUDO

-      g_ScreenInfo[i].fEmulatePseudo = WIN_DEFAULT_EMULATE_PSEUDO;

-#endif

-      g_ScreenInfo[i].dwRefreshRate = WIN_DEFAULT_REFRESH;

-      g_ScreenInfo[i].pfb = NULL;

-      g_ScreenInfo[i].fFullScreen = FALSE;

-      g_ScreenInfo[i].fDecoration = TRUE;

-#ifdef XWIN_MULTIWINDOWEXTWM

-      g_ScreenInfo[i].fMWExtWM = FALSE;

-      g_ScreenInfo[i].fInternalWM = FALSE;

-#endif

-      g_ScreenInfo[i].fRootless = FALSE;

-#ifdef XWIN_MULTIWINDOW

-      g_ScreenInfo[i].fMultiWindow = FALSE;

-#endif

-#if defined(XWIN_MULTIWINDOW) || defined(XWIN_MULTIWINDOWEXTWM)

-      g_ScreenInfo[i].fMultiMonitorOverride = FALSE;

-#endif

-      g_ScreenInfo[i].fMultipleMonitors = FALSE;

-      g_ScreenInfo[i].fLessPointer = FALSE;

-      g_ScreenInfo[i].fScrollbars = FALSE;

-      g_ScreenInfo[i].fNoTrayIcon = FALSE;

-      g_ScreenInfo[i].iE3BTimeout = WIN_E3B_OFF;

-      g_ScreenInfo[i].dwWidth_mm = (dwWidth / WIN_DEFAULT_DPI)

-	* 25.4;

-      g_ScreenInfo[i].dwHeight_mm = (dwHeight / WIN_DEFAULT_DPI)

-	* 25.4;

-      g_ScreenInfo[i].fUseWinKillKey = WIN_DEFAULT_WIN_KILL;

-      g_ScreenInfo[i].fUseUnixKillKey = WIN_DEFAULT_UNIX_KILL;

-      g_ScreenInfo[i].fIgnoreInput = FALSE;

-      g_ScreenInfo[i].fExplicitScreen = FALSE;

-    }

-

-  /* Signal that the default screens have been initialized */

-  g_fInitializedDefaultScreens = TRUE;

-

-  winDebug ("winInitializeDefaultScreens - Returning\n");

-}

-

-/* See Porting Layer Definition - p. 57 */

-/*

- * INPUT

- * argv: pointer to an array of null-terminated strings, one for

- *   each token in the X Server command line; the first token

- *   is 'XWin.exe', or similar.

- * argc: a count of the number of tokens stored in argv.

- * i: a zero-based index into argv indicating the current token being

- *   processed.

- *

- * OUTPUT

- * return: return the number of tokens processed correctly.

- *

- * NOTE

- * When looking for n tokens, check that i + n is less than argc.  Or,

- *   you may check if i is greater than or equal to argc, in which case

- *   you should display the UseMsg () and return 0.

- */

-

-/* Check if enough arguments are given for the option */

-#define CHECK_ARGS(count) if (i + count >= argc) { UseMsg (); return 0; }

-

-/* Compare the current option with the string. */ 

-#define IS_OPTION(name) (strcmp (argv[i], name) == 0)

-

-int

-ddxProcessArgument (int argc, char *argv[], int i)

-{

-  static Bool		s_fBeenHere = FALSE;

-

-  /* Initialize once */

-  if (!s_fBeenHere)

-    {

-#ifdef DDXOSVERRORF

-      /*

-       * This initialises our hook into VErrorF () for catching log messages

-       * that are generated before OsInit () is called.

-       */

-      OsVendorVErrorFProc = OsVendorVErrorF;

-#endif

-

-      s_fBeenHere = TRUE;

-

-      /* Initialize only if option is not -help */

-      if (!IS_OPTION("-help") && !IS_OPTION("-h") && !IS_OPTION("--help") &&

-          !IS_OPTION("-version") && !IS_OPTION("--version"))

-	{

-

-          /* Log the version information */

-          winLogVersionInfo ();

-

-          /* Log the command line */

-          winLogCommandLine (argc, argv);

-

-	  /*

-	   * Initialize default screen settings.  We have to do this before

-	   * OsVendorInit () gets called, otherwise we will overwrite

-	   * settings changed by parameters such as -fullscreen, etc.

-	   */

-	  winDebug ("ddxProcessArgument - Initializing default "

-			 "screens\n");

-	  winInitializeDefaultScreens ();

-	}

-    }

-

-  winDebug ("ddxProcessArgument - arg: %s\n", argv[i]);

-

-  /*

-   * Look for the '-help' and similar options

-   */ 

-  if (IS_OPTION ("-help") || IS_OPTION("-h") || IS_OPTION("--help"))

-    {

-      /* Reset logfile. We don't need that helpmessage in the logfile */  

-      g_pszLogFile = NULL;

-      g_fNoHelpMessageBox = TRUE;

-      UseMsg();

-      exit (0);

-      return 1;

-    }

-

-  if (IS_OPTION ("-version") || IS_OPTION("--version"))

-    {

-      /* Reset logfile. We don't need that versioninfo in the logfile */  

-      g_pszLogFile = NULL;

-      winLogVersionInfo ();

-      exit (0);

-      return 1;

-    }

-

-  /*

-   * Look for the '-screen scr_num [width height]' argument

-   */

-  if (IS_OPTION ("-screen"))

-    {

-      int		iArgsProcessed = 1;

-      int		nScreenNum;

-      int		iWidth, iHeight, iX, iY;

-      int		iMonitor;

-

-      winDebug ("ddxProcessArgument - screen - argc: %d i: %d\n",

-	      argc, i);

-

-      /* Display the usage message if the argument is malformed */

-      if (i + 1 >= argc)

-	{

-	  return 0;

-	}

-      

-      /* Grab screen number */

-      nScreenNum = atoi (argv[i + 1]);

-

-      /* Validate the specified screen number */

-      if (nScreenNum < 0 || nScreenNum >= MAXSCREENS)

-        {

-          ErrorF ("ddxProcessArgument - screen - Invalid screen number %d\n",

-		  nScreenNum);

-          UseMsg ();

-	  return 0;

-        }

-

-	  /* look for @m where m is monitor number */

-	  if (i + 2 < argc

-		  && 1 == sscanf(argv[i + 2], "@%d", (int *) &iMonitor)) 

-      {

-        struct GetMonitorInfoData data;

-        if (!QueryMonitor(iMonitor, &data))

-        {

-            ErrorF ("ddxProcessArgument - screen - "

-                    "Querying monitors is not supported on NT4 and Win95\n");

-        } else if (data.bMonitorSpecifiedExists == TRUE) 

-        {

-		  winDebug("ddxProcessArgument - screen - Found Valid ``@Monitor'' = %d arg\n", iMonitor);

-		  iArgsProcessed = 3;

-		  g_ScreenInfo[nScreenNum].fUserGaveHeightAndWidth = FALSE;

-		  g_ScreenInfo[nScreenNum].fUserGavePosition = TRUE;

-		  g_ScreenInfo[nScreenNum].dwWidth = data.monitorWidth;

-		  g_ScreenInfo[nScreenNum].dwHeight = data.monitorHeight;

-		  g_ScreenInfo[nScreenNum].dwUserWidth = data.monitorWidth;

-		  g_ScreenInfo[nScreenNum].dwUserHeight = data.monitorHeight;

-		  g_ScreenInfo[nScreenNum].dwInitialX = data.monitorOffsetX;

-		  g_ScreenInfo[nScreenNum].dwInitialY = data.monitorOffsetY;

-		}

-		else 

-        {

-		  /* monitor does not exist, error out */

-		  ErrorF ("ddxProcessArgument - screen - Invalid monitor number %d\n",

-				  iMonitor);

-		  UseMsg ();

-		  exit (0);

-		  return 0;

-		}

-	  }

-

-      /* Look for 'WxD' or 'W D' */

-      else if (i + 2 < argc

-	  && 2 == sscanf (argv[i + 2], "%dx%d",

-			  (int *) &iWidth,

-			  (int *) &iHeight))

-	{

-	  winDebug ("ddxProcessArgument - screen - Found ``WxD'' arg\n");

-	  iArgsProcessed = 3;

-	  g_ScreenInfo[nScreenNum].fUserGaveHeightAndWidth = TRUE;

-	  g_ScreenInfo[nScreenNum].dwWidth = iWidth;

-	  g_ScreenInfo[nScreenNum].dwHeight = iHeight;

-	  g_ScreenInfo[nScreenNum].dwUserWidth = iWidth;

-	  g_ScreenInfo[nScreenNum].dwUserHeight = iHeight;

-	  /* Look for WxD+X+Y */

-	  if (2 == sscanf (argv[i + 2], "%*dx%*d+%d+%d",

-			   (int *) &iX,

-			   (int *) &iY))

-	  {

-	    winDebug("ddxProcessArgument - screen - Found ``X+Y'' arg\n");

-	    g_ScreenInfo[nScreenNum].fUserGavePosition = TRUE;

-	    g_ScreenInfo[nScreenNum].dwInitialX = iX;

-	    g_ScreenInfo[nScreenNum].dwInitialY = iY;

-

-		/* look for WxD+X+Y@m where m is monitor number. take X,Y to be offsets from monitor's root position */

-		if (1 == sscanf (argv[i + 2], "%*dx%*d+%*d+%*d@%d",

-						 (int *) &iMonitor)) 

-        {

-          struct GetMonitorInfoData data;

-          if (!QueryMonitor(iMonitor, &data))

-          {

-              ErrorF ("ddxProcessArgument - screen - "

-                      "Querying monitors is not supported on NT4 and Win95\n");

-          } else if (data.bMonitorSpecifiedExists == TRUE) 

-          {

-			g_ScreenInfo[nScreenNum].dwInitialX += data.monitorOffsetX;

-			g_ScreenInfo[nScreenNum].dwInitialY += data.monitorOffsetY;

-		  }

-		  else 

-          {

-			/* monitor does not exist, error out */

-			ErrorF ("ddxProcessArgument - screen - Invalid monitor number %d\n",

-					iMonitor);

-			UseMsg ();

-			exit (0);

-			return 0;

-		  }

-

-		}

-	  }

-

-	  /* look for WxD@m where m is monitor number */

-	  else if (1 == sscanf(argv[i + 2], "%*dx%*d@%d",

-						   (int *) &iMonitor)) 

-      {

-        struct GetMonitorInfoData data;

-        if (!QueryMonitor(iMonitor, &data))

-        {

-		  ErrorF ("ddxProcessArgument - screen - "

-                  "Querying monitors is not supported on NT4 and Win95\n");

-        } else if (data.bMonitorSpecifiedExists == TRUE) 

-        {

-		  winDebug ("ddxProcessArgument - screen - Found Valid ``@Monitor'' = %d arg\n", iMonitor);

-		  g_ScreenInfo[nScreenNum].fUserGavePosition = TRUE;

-		  g_ScreenInfo[nScreenNum].dwInitialX = data.monitorOffsetX;

-		  g_ScreenInfo[nScreenNum].dwInitialY = data.monitorOffsetY;

-		}

-		else 

-        {

-		  /* monitor does not exist, error out */

-		  ErrorF ("ddxProcessArgument - screen - Invalid monitor number %d\n",

-				  iMonitor);

-		  UseMsg ();

-		  exit (0);

-		  return 0;

-		}

-

-	  }

-	}

-      else if (i + 3 < argc

-	       && 1 == sscanf (argv[i + 2], "%d",

-			       (int *) &iWidth)

-	       && 1 == sscanf (argv[i + 3], "%d",

-			       (int *) &iHeight))

-	{

-	  winDebug ("ddxProcessArgument - screen - Found ``W D'' arg\n");

-	  iArgsProcessed = 4;

-	  g_ScreenInfo[nScreenNum].fUserGaveHeightAndWidth = TRUE;

-	  g_ScreenInfo[nScreenNum].dwWidth = iWidth;

-	  g_ScreenInfo[nScreenNum].dwHeight = iHeight;

-	  g_ScreenInfo[nScreenNum].dwUserWidth = iWidth;

-	  g_ScreenInfo[nScreenNum].dwUserHeight = iHeight;

-	  if (i + 5 < argc

-	      && 1 == sscanf (argv[i + 4], "%d",

-			      (int *) &iX)

-	      && 1 == sscanf (argv[i + 5], "%d",

-			      (int *) &iY))

-	  {

-	    winDebug ("ddxProcessArgument - screen - Found ``X Y'' arg\n");

-	    iArgsProcessed = 6;

-	    g_ScreenInfo[nScreenNum].fUserGavePosition = TRUE;

-	    g_ScreenInfo[nScreenNum].dwInitialX = iX;

-	    g_ScreenInfo[nScreenNum].dwInitialY = iY;

-	  }

-	}

-      else

-	{

-	  ErrorF ("ddxProcessArgument - screen - Did not find size arg. "

-		  "dwWidth: %d dwHeight: %d\n",

-		  (int) g_ScreenInfo[nScreenNum].dwWidth,

-		  (int) g_ScreenInfo[nScreenNum].dwHeight);

-	  iArgsProcessed = 2;

-	  g_ScreenInfo[nScreenNum].fUserGaveHeightAndWidth = FALSE;

-	}

-

-      /* Calculate the screen width and height in millimeters */

-      if (g_ScreenInfo[nScreenNum].fUserGaveHeightAndWidth)

-	{

-	  g_ScreenInfo[nScreenNum].dwWidth_mm

-	    = (g_ScreenInfo[nScreenNum].dwWidth

-	       / monitorResolution) * 25.4;

-	  g_ScreenInfo[nScreenNum].dwHeight_mm

-	    = (g_ScreenInfo[nScreenNum].dwHeight

-	       / monitorResolution) * 25.4;

-	}

-

-      /* Flag that this screen was explicity specified by the user */

-      g_ScreenInfo[nScreenNum].fExplicitScreen = TRUE;

-

-      /*

-       * Keep track of the last screen number seen, as parameters seen

-       * before a screen number apply to all screens, whereas parameters

-       * seen after a screen number apply to that screen number only.

-       */

-      g_iLastScreen = nScreenNum;

-

-      /* Keep a count of the number of screens */

-      ++g_iNumScreens;

-

-      return iArgsProcessed;

-    }

-

-  /*

-   * Look for the '-engine n' argument

-   */

-  if (IS_OPTION ("-engine"))

-    {

-      DWORD		dwEngine = 0;

-      CARD8		c8OnBits = 0;

-      

-      /* Display the usage message if the argument is malformed */

-      if (++i >= argc)

-	{

-	  UseMsg ();

-	  return 0;

-	}

-

-      /* Grab the argument */

-      dwEngine = atoi (argv[i]);

-

-      /* Count the one bits in the engine argument */

-      c8OnBits = winCountBits (dwEngine);

-

-      /* Argument should only have a single bit on */

-      if (c8OnBits != 1)

-	{

-	  UseMsg ();

-	  return 0;

-	}

-

-      /* Is this parameter attached to a screen or global? */

-      if (-1 == g_iLastScreen)

-	{

-	  int		j;

-

-	  /* Parameter is for all screens */

-	  for (j = 0; j < MAXSCREENS; j++)

-	    {

-	      g_ScreenInfo[j].dwEnginePreferred = dwEngine;

-	    }

-	}

-      else

-	{

-	  /* Parameter is for a single screen */

-	  g_ScreenInfo[g_iLastScreen].dwEnginePreferred = dwEngine;

-	}

-      

-      /* Indicate that we have processed the argument */

-      return 2;

-    }

-

-  /*

-   * Look for the '-fullscreen' argument

-   */

-  if (IS_OPTION ("-fullscreen"))

-    {

-      /* Is this parameter attached to a screen or is it global? */

-      if (-1 == g_iLastScreen)

-	{

-	  int			j;

-

-	  /* Parameter is for all screens */

-	  for (j = 0; j < MAXSCREENS; j++)

-	    {

-#if defined(XWIN_MULTIWINDOW) || defined(XWIN_MULTIWINDOWEXTWM)

-              if (!g_ScreenInfo[j].fMultiMonitorOverride)

-                g_ScreenInfo[j].fMultipleMonitors = FALSE;

-#endif

-	      g_ScreenInfo[j].fFullScreen = TRUE;

-	    }

-	}

-      else

-	{

-	  /* Parameter is for a single screen */

-#if defined(XWIN_MULTIWINDOW) || defined(XWIN_MULTIWINDOWEXTWM)

-          if (!g_ScreenInfo[g_iLastScreen].fMultiMonitorOverride)

-            g_ScreenInfo[g_iLastScreen].fMultipleMonitors = FALSE;

-#endif

-	  g_ScreenInfo[g_iLastScreen].fFullScreen = TRUE;

-	}

-

-      /* Indicate that we have processed this argument */

-      return 1;

-    }

-

-  /*

-   * Look for the '-lesspointer' argument

-   */

-  if (IS_OPTION ("-lesspointer"))

-    {

-      /* Is this parameter attached to a screen or is it global? */

-      if (-1 == g_iLastScreen)

-	{

-	  int			j;

-

-	  /* Parameter is for all screens */

-	  for (j = 0; j < MAXSCREENS; j++)

-	    {

-	      g_ScreenInfo[j].fLessPointer = TRUE;

-	    }

-	}

-      else

-	{

-	  /* Parameter is for a single screen */

-          g_ScreenInfo[g_iLastScreen].fLessPointer = TRUE;

-	}

-

-      /* Indicate that we have processed this argument */

-      return 1;

-    }

-

-  /*

-   * Look for the '-nodecoration' argument

-   */

-  if (IS_OPTION ("-nodecoration"))

-    {

-      /* Is this parameter attached to a screen or is it global? */

-      if (-1 == g_iLastScreen)

-	{

-	  int			j;

-

-	  /* Parameter is for all screens */

-	  for (j = 0; j < MAXSCREENS; j++)

-	    {

-#if defined(XWIN_MULTIWINDOW) || defined(XWIN_MULTIWINDOWEXTWM)

-              if (!g_ScreenInfo[j].fMultiMonitorOverride)

-                g_ScreenInfo[j].fMultipleMonitors = FALSE;

-#endif

-	      g_ScreenInfo[j].fDecoration = FALSE;

-	    }

-	}

-      else

-	{

-	  /* Parameter is for a single screen */

-#if defined(XWIN_MULTIWINDOW) || defined(XWIN_MULTIWINDOWEXTWM)

-          if (!g_ScreenInfo[g_iLastScreen].fMultiMonitorOverride)

-            g_ScreenInfo[g_iLastScreen].fMultipleMonitors = FALSE;

-#endif

-	  g_ScreenInfo[g_iLastScreen].fDecoration = FALSE;

-	}

-

-      /* Indicate that we have processed this argument */

-      return 1;

-    }

-

-#ifdef XWIN_MULTIWINDOWEXTWM

-  /*

-   * Look for the '-mwextwm' argument

-   */

-  if (IS_OPTION ("-mwextwm"))

-    {

-      /* Is this parameter attached to a screen or is it global? */

-      if (-1 == g_iLastScreen)

-	{

-	  int			j;

-

-	  /* Parameter is for all screens */

-	  for (j = 0; j < MAXSCREENS; j++)

-	    {

-              if (!g_ScreenInfo[j].fMultiMonitorOverride)

-                g_ScreenInfo[j].fMultipleMonitors = TRUE;

-	      g_ScreenInfo[j].fMWExtWM = TRUE;

-	    }

-	}

-      else

-	{

-	  /* Parameter is for a single screen */

-          if (!g_ScreenInfo[g_iLastScreen].fMultiMonitorOverride)

-            g_ScreenInfo[g_iLastScreen].fMultipleMonitors = TRUE;

-	  g_ScreenInfo[g_iLastScreen].fMWExtWM = TRUE;

-	}

-

-      /* Indicate that we have processed this argument */

-      return 1;

-    }

-  /*

-   * Look for the '-internalwm' argument

-   */

-  if (IS_OPTION ("-internalwm"))

-    {

-      /* Is this parameter attached to a screen or is it global? */

-      if (-1 == g_iLastScreen)

-	{

-	  int			j;

-

-	  /* Parameter is for all screens */

-	  for (j = 0; j < MAXSCREENS; j++)

-	    {

-	      if (!g_ScreenInfo[j].fMultiMonitorOverride)

-	        g_ScreenInfo[j].fMultipleMonitors = TRUE;

-	      g_ScreenInfo[j].fMWExtWM = TRUE;

-	      g_ScreenInfo[j].fInternalWM = TRUE;

-	    }

-	}

-      else

-	{

-	  /* Parameter is for a single screen */

-	  if (!g_ScreenInfo[g_iLastScreen].fMultiMonitorOverride)

-	    g_ScreenInfo[g_iLastScreen].fMultipleMonitors = TRUE;

-	  g_ScreenInfo[g_iLastScreen].fMWExtWM = TRUE;

-	  g_ScreenInfo[g_iLastScreen].fInternalWM = TRUE;

-	}

-

-      /* Indicate that we have processed this argument */

-      return 1;

-    }

-#endif

-

-  /*

-   * Look for the '-rootless' argument

-   */

-  if (IS_OPTION ("-rootless"))

-    {

-      /* Is this parameter attached to a screen or is it global? */

-      if (-1 == g_iLastScreen)

-	{

-	  int			j;

-

-	  /* Parameter is for all screens */

-	  for (j = 0; j < MAXSCREENS; j++)

-	    {

-#if defined(XWIN_MULTIWINDOW) || defined(XWIN_MULTIWINDOWEXTWM)

-              if (!g_ScreenInfo[j].fMultiMonitorOverride)

-                g_ScreenInfo[j].fMultipleMonitors = FALSE;

-#endif

-	      g_ScreenInfo[j].fRootless = TRUE;

-	    }

-	}

-      else

-	{

-	  /* Parameter is for a single screen */

-#if defined(XWIN_MULTIWINDOW) || defined(XWIN_MULTIWINDOWEXTWM)

-          if (!g_ScreenInfo[g_iLastScreen].fMultiMonitorOverride)

-            g_ScreenInfo[g_iLastScreen].fMultipleMonitors = FALSE;

-#endif

-	  g_ScreenInfo[g_iLastScreen].fRootless = TRUE;

-	}

-

-      /* Indicate that we have processed this argument */

-      return 1;

-    }

-

-#ifdef XWIN_MULTIWINDOW

-  /*

-   * Look for the '-multiwindow' argument

-   */

-  if (IS_OPTION ("-multiwindow"))

-    {

-      /* Is this parameter attached to a screen or is it global? */

-      if (-1 == g_iLastScreen)

-	{

-	  int			j;

-

-	  /* Parameter is for all screens */

-	  for (j = 0; j < MAXSCREENS; j++)

-	    {

-#if defined(XWIN_MULTIWINDOW) || defined(XWIN_MULTIWINDOWEXTWM)

-              if (!g_ScreenInfo[j].fMultiMonitorOverride)

-                g_ScreenInfo[j].fMultipleMonitors = TRUE;

-#endif

-	      g_ScreenInfo[j].fMultiWindow = TRUE;

-	    }

-	}

-      else

-	{

-	  /* Parameter is for a single screen */

-#if defined(XWIN_MULTIWINDOW) || defined(XWIN_MULTIWINDOWEXTWM)

-          if (!g_ScreenInfo[g_iLastScreen].fMultiMonitorOverride)

-            g_ScreenInfo[g_iLastScreen].fMultipleMonitors = TRUE;

-#endif

-	  g_ScreenInfo[g_iLastScreen].fMultiWindow = TRUE;

-	}

-

-      /* Indicate that we have processed this argument */

-      return 1;

-    }

-#endif

-

-  /*

-   * Look for the '-multiplemonitors' argument

-   */

-  if (IS_OPTION ("-multiplemonitors")

-      || IS_OPTION ("-multimonitors"))

-    {

-      /* Is this parameter attached to a screen or is it global? */

-      if (-1 == g_iLastScreen)

-	{

-	  int			j;

-

-	  /* Parameter is for all screens */

-	  for (j = 0; j < MAXSCREENS; j++)

-	    {

-#if defined(XWIN_MULTIWINDOW) || defined(XWIN_MULTIWINDOWEXTWM)

-              g_ScreenInfo[j].fMultiMonitorOverride = TRUE;

-#endif

-	      g_ScreenInfo[j].fMultipleMonitors = TRUE;

-	    }

-	}

-      else

-	{

-	  /* Parameter is for a single screen */

-#if defined(XWIN_MULTIWINDOW) || defined(XWIN_MULTIWINDOWEXTWM)

-          g_ScreenInfo[g_iLastScreen].fMultiMonitorOverride = TRUE;

-#endif

-	  g_ScreenInfo[g_iLastScreen].fMultipleMonitors = TRUE;

-	}

-

-      /* Indicate that we have processed this argument */

-      return 1;

-    }

-

-  /*

-   * Look for the '-nomultiplemonitors' argument

-   */

-  if (IS_OPTION ("-nomultiplemonitors")

-      || IS_OPTION ("-nomultimonitors"))

-    {

-      /* Is this parameter attached to a screen or is it global? */

-      if (-1 == g_iLastScreen)

-	{

-	  int			j;

-

-	  /* Parameter is for all screens */

-	  for (j = 0; j < MAXSCREENS; j++)

-	    {

-#if defined(XWIN_MULTIWINDOW) || defined(XWIN_MULTIWINDOWEXTWM)

-              g_ScreenInfo[j].fMultiMonitorOverride = TRUE;

-#endif

-	      g_ScreenInfo[j].fMultipleMonitors = FALSE;

-	    }

-	}

-      else

-	{

-	  /* Parameter is for a single screen */

-#if defined(XWIN_MULTIWINDOW) || defined(XWIN_MULTIWINDOWEXTWM)

-          g_ScreenInfo[g_iLastScreen].fMultiMonitorOverride = TRUE;

-#endif

-	  g_ScreenInfo[g_iLastScreen].fMultipleMonitors = FALSE;

-	}

-

-      /* Indicate that we have processed this argument */

-      return 1;

-    }

-

-

-  /*

-   * Look for the '-scrollbars' argument

-   */

-  if (IS_OPTION ("-scrollbars"))

-    {

-      /* Is this parameter attached to a screen or is it global? */

-      if (-1 == g_iLastScreen)

-	{

-	  int			j;

-

-	  /* Parameter is for all screens */

-	  for (j = 0; j < MAXSCREENS; j++)

-	    {

-	      g_ScreenInfo[j].fScrollbars = TRUE;

-	    }

-	}

-      else

-	{

-	  /* Parameter is for a single screen */

-	  g_ScreenInfo[g_iLastScreen].fScrollbars = TRUE;

-	}

-

-      /* Indicate that we have processed this argument */

-      return 1;

-    }

-

-

-#ifdef XWIN_CLIPBOARD

-  /*

-   * Look for the '-clipboard' argument

-   */

-  if (IS_OPTION ("-clipboard"))

-    {

-      /* Now the default, we still accept the arg for backwards compatibility */

-      g_fClipboard = TRUE;

-

-      /* Indicate that we have processed this argument */

-      return 1;

-    }

-

-  /*

-   * Look for the '-noclipboard' argument

-   */

-  if (IS_OPTION ("-noclipboard"))

-    {

-      g_fClipboard = FALSE;

-

-      /* Indicate that we have processed this argument */

-      return 1;

-    }

-#endif

-

-

-  /*

-   * Look for the '-ignoreinput' argument

-   */

-  if (IS_OPTION ("-ignoreinput"))

-    {

-      /* Is this parameter attached to a screen or is it global? */

-      if (-1 == g_iLastScreen)

-	{

-	  int			j;

-

-	  /* Parameter is for all screens */

-	  for (j = 0; j < MAXSCREENS; j++)

-	    {

-	      g_ScreenInfo[j].fIgnoreInput = TRUE;

-	    }

-	}

-      else

-	{

-	  /* Parameter is for a single screen */

-	  g_ScreenInfo[g_iLastScreen].fIgnoreInput = TRUE;

-	}

-

-      /* Indicate that we have processed this argument */

-      return 1;

-    }

-

-  /*

-   * Look for the '-emulate3buttons' argument

-   */

-  if (IS_OPTION ("-emulate3buttons"))

-    {

-      int	iArgsProcessed = 1;

-      int	iE3BTimeout = WIN_DEFAULT_E3B_TIME;

-

-      /* Grab the optional timeout value */

-      if (i + 1 < argc

-	  && 1 == sscanf (argv[i + 1], "%d",

-			  &iE3BTimeout))

-        {

-	  /* Indicate that we have processed the next argument */

-	  iArgsProcessed++;

-        }

-      else

-	{

-	  /*

-	   * sscanf () won't modify iE3BTimeout if it doesn't find

-	   * the specified format; however, I want to be explicit

-	   * about setting the default timeout in such cases to

-	   * prevent some programs (me) from getting confused.

-	   */

-	  iE3BTimeout = WIN_DEFAULT_E3B_TIME;

-	}

-

-      /* Is this parameter attached to a screen or is it global? */

-      if (-1 == g_iLastScreen)

-	{

-	  int			j;

-

-	  /* Parameter is for all screens */

-	  for (j = 0; j < MAXSCREENS; j++)

-	    {

-	      g_ScreenInfo[j].iE3BTimeout = iE3BTimeout;

-	    }

-	}

-      else

-	{

-	  /* Parameter is for a single screen */

-	  g_ScreenInfo[g_iLastScreen].iE3BTimeout = iE3BTimeout;

-	}

-

-      /* Indicate that we have processed this argument */

-      return iArgsProcessed;

-    }

-

-  /*

-   * Look for the '-depth n' argument

-   */

-  if (IS_OPTION ("-depth"))

-    {

-      DWORD		dwBPP = 0;

-      

-      /* Display the usage message if the argument is malformed */

-      if (++i >= argc)

-	{

-	  UseMsg ();

-	  return 0;

-	}

-

-      /* Grab the argument */

-      dwBPP = atoi (argv[i]);

-

-      /* Is this parameter attached to a screen or global? */

-      if (-1 == g_iLastScreen)

-	{

-	  int		j;

-

-	  /* Parameter is for all screens */

-	  for (j = 0; j < MAXSCREENS; j++)

-	    {

-	      g_ScreenInfo[j].dwBPP = dwBPP;

-	    }

-	}

-      else

-	{

-	  /* Parameter is for a single screen */

-	  g_ScreenInfo[g_iLastScreen].dwBPP = dwBPP;

-	}

-      

-      /* Indicate that we have processed the argument */

-      return 2;

-    }

-

-  /*

-   * Look for the '-refresh n' argument

-   */

-  if (IS_OPTION ("-refresh"))

-    {

-      DWORD		dwRefreshRate = 0;

-      

-      /* Display the usage message if the argument is malformed */

-      if (++i >= argc)

-	{

-	  UseMsg ();

-	  return 0;

-	}

-

-      /* Grab the argument */

-      dwRefreshRate = atoi (argv[i]);

-

-      /* Is this parameter attached to a screen or global? */

-      if (-1 == g_iLastScreen)

-	{

-	  int		j;

-

-	  /* Parameter is for all screens */

-	  for (j = 0; j < MAXSCREENS; j++)

-	    {

-	      g_ScreenInfo[j].dwRefreshRate = dwRefreshRate;

-	    }

-	}

-      else

-	{

-	  /* Parameter is for a single screen */

-	  g_ScreenInfo[g_iLastScreen].dwRefreshRate = dwRefreshRate;

-	}

-      

-      /* Indicate that we have processed the argument */

-      return 2;

-    }

-

-  /*

-   * Look for the '-clipupdates num_boxes' argument

-   */

-  if (IS_OPTION ("-clipupdates"))

-    {

-      DWORD		dwNumBoxes = 0;

-      

-      /* Display the usage message if the argument is malformed */

-      if (++i >= argc)

-	{

-	  UseMsg ();

-	  return 0;

-	}

-

-      /* Grab the argument */

-      dwNumBoxes = atoi (argv[i]);

-

-      /* Is this parameter attached to a screen or global? */

-      if (-1 == g_iLastScreen)

-	{

-	  int		j;

-

-	  /* Parameter is for all screens */

-	  for (j = 0; j < MAXSCREENS; j++)

-	    {

-	      g_ScreenInfo[j].dwClipUpdatesNBoxes = dwNumBoxes;

-	    }

-	}

-      else

-	{

-	  /* Parameter is for a single screen */

-	  g_ScreenInfo[g_iLastScreen].dwClipUpdatesNBoxes = dwNumBoxes;

-	}

-      

-      /* Indicate that we have processed the argument */

-      return 2;

-    }

-

-#ifdef XWIN_EMULATEPSEUDO

-  /*

-   * Look for the '-emulatepseudo' argument

-   */

-  if (IS_OPTION ("-emulatepseudo"))

-    {

-      /* Is this parameter attached to a screen or is it global? */

-      if (-1 == g_iLastScreen)

-	{

-	  int			j;

-

-	  /* Parameter is for all screens */

-	  for (j = 0; j < MAXSCREENS; j++)

-	    {

-	      g_ScreenInfo[j].fEmulatePseudo = TRUE;

-	    }

-	}

-      else

-	{

-	  /* Parameter is for a single screen */

-          g_ScreenInfo[g_iLastScreen].fEmulatePseudo = TRUE;

-	}

-

-      /* Indicate that we have processed this argument */

-      return 1;

-    }

-#endif

-

-  /*

-   * Look for the '-nowinkill' argument

-   */

-  if (IS_OPTION ("-nowinkill"))

-    {

-      /* Is this parameter attached to a screen or is it global? */

-      if (-1 == g_iLastScreen)

-	{

-	  int			j;

-

-	  /* Parameter is for all screens */

-	  for (j = 0; j < MAXSCREENS; j++)

-	    {

-	      g_ScreenInfo[j].fUseWinKillKey = FALSE;

-	    }

-	}

-      else

-	{

-	  /* Parameter is for a single screen */

-	  g_ScreenInfo[g_iLastScreen].fUseWinKillKey = FALSE;

-	}

-

-      /* Indicate that we have processed this argument */

-      return 1;

-    }

-

-  /*

-   * Look for the '-winkill' argument

-   */

-  if (IS_OPTION ("-winkill"))

-    {

-      /* Is this parameter attached to a screen or is it global? */

-      if (-1 == g_iLastScreen)

-	{

-	  int			j;

-

-	  /* Parameter is for all screens */

-	  for (j = 0; j < MAXSCREENS; j++)

-	    {

-	      g_ScreenInfo[j].fUseWinKillKey = TRUE;

-	    }

-	}

-      else

-	{

-	  /* Parameter is for a single screen */

-	  g_ScreenInfo[g_iLastScreen].fUseWinKillKey = TRUE;

-	}

-

-      /* Indicate that we have processed this argument */

-      return 1;

-    }

-

-  /*

-   * Look for the '-nounixkill' argument

-   */

-  if (IS_OPTION ("-nounixkill"))

-    {

-      /* Is this parameter attached to a screen or is it global? */

-      if (-1 == g_iLastScreen)

-	{

-	  int			j;

-

-	  /* Parameter is for all screens */

-	  for (j = 0; j < MAXSCREENS; j++)

-	    {

-	      g_ScreenInfo[j].fUseUnixKillKey = FALSE;

-	    }

-	}

-      else

-	{

-	  /* Parameter is for a single screen */

-	  g_ScreenInfo[g_iLastScreen].fUseUnixKillKey = FALSE;

-	}

-

-      /* Indicate that we have processed this argument */

-      return 1;

-    }

-

-  /*

-   * Look for the '-unixkill' argument

-   */

-  if (IS_OPTION ("-unixkill"))

-    {

-      /* Is this parameter attached to a screen or is it global? */

-      if (-1 == g_iLastScreen)

-	{

-	  int			j;

-

-	  /* Parameter is for all screens */

-	  for (j = 0; j < MAXSCREENS; j++)

-	    {

-	      g_ScreenInfo[j].fUseUnixKillKey = TRUE;

-	    }

-	}

-      else

-	{

-	  /* Parameter is for a single screen */

-	  g_ScreenInfo[g_iLastScreen].fUseUnixKillKey = TRUE;

-	}

-

-      /* Indicate that we have processed this argument */

-      return 1;

-    }

-

-  /*

-   * Look for the '-notrayicon' argument

-   */

-  if (IS_OPTION ("-notrayicon"))

-    {

-      /* Is this parameter attached to a screen or is it global? */

-      if (-1 == g_iLastScreen)

-	{

-	  int			j;

-

-	  /* Parameter is for all screens */

-	  for (j = 0; j < MAXSCREENS; j++)

-	    {

-	      g_ScreenInfo[j].fNoTrayIcon = TRUE;

-	    }

-	}

-      else

-	{

-	  /* Parameter is for a single screen */

-	  g_ScreenInfo[g_iLastScreen].fNoTrayIcon = TRUE;

-	}

-

-      /* Indicate that we have processed this argument */

-      return 1;

-    }

-

-  /*

-   * Look for the '-trayicon' argument

-   */

-  if (IS_OPTION ("-trayicon"))

-    {

-      /* Is this parameter attached to a screen or is it global? */

-      if (-1 == g_iLastScreen)

-	{

-	  int			j;

-

-	  /* Parameter is for all screens */

-	  for (j = 0; j < MAXSCREENS; j++)

-	    {

-	      g_ScreenInfo[j].fNoTrayIcon = FALSE;

-	    }

-	}

-      else

-	{

-	  /* Parameter is for a single screen */

-	  g_ScreenInfo[g_iLastScreen].fNoTrayIcon = FALSE;

-	}

-

-      /* Indicate that we have processed this argument */

-      return 1;

-    }

-

-  /*

-   * Look for the '-fp' argument

-   */

-  if (IS_OPTION ("-fp"))

-    {

-      CHECK_ARGS (1);

-      g_cmdline.fontPath = argv[++i];

-      return 0; /* Let DIX parse this again */

-    }

-

-  /*

-   * Look for the '-query' argument

-   */

-  if (IS_OPTION ("-query"))

-    {

-      CHECK_ARGS (1);

-      g_fXdmcpEnabled = TRUE;

-      g_pszQueryHost = argv[++i];

-      return 0; /* Let DIX parse this again */

-    }

-

-  /*

-   * Look for the '-auth' argument

-   */

-  if (IS_OPTION ("-auth"))

-    {

-      g_fAuthEnabled = TRUE;

-      return 0; /* Let DIX parse this again */

-    }

-

-  /*

-   * Look for the '-indirect' or '-broadcast' arguments

-   */

-  if (IS_OPTION ("-indirect")

-      || IS_OPTION ("-broadcast"))

-    {

-      g_fXdmcpEnabled = TRUE;

-      return 0; /* Let DIX parse this again */

-    }

-

-  /*

-   * Look for the '-config' argument

-   */

-  if (IS_OPTION ("-config")

-      || IS_OPTION ("-xf86config"))

-    {

-      CHECK_ARGS (1);

-#ifdef XWIN_XF86CONFIG

-      g_cmdline.configFile = argv[++i];

-#else

-      winMessageBoxF ("The %s option is not supported in this "

-		      "release.\n"

-		      "Ignoring this option and continuing.\n",

-		      MB_ICONINFORMATION,

-		      argv[i]);

-#endif

-      return 2;

-    }

-

-  /*

-   * Look for the '-configdir' argument

-   */

-  if (IS_OPTION ("-configdir"))

-    {

-      CHECK_ARGS (1);

-#ifdef XWIN_XF86CONFIG

-      g_cmdline.configDir = argv[++i];

-#else

-      winMessageBoxF ("The %s option is not supported in this "

-		      "release.\n"

-		      "Ignoring this option and continuing.\n",

-		      MB_ICONINFORMATION,

-		      argv[i]);

-#endif

-      return 2;

-    }

-

-  /*

-   * Look for the '-keyboard' argument

-   */

-  if (IS_OPTION ("-keyboard"))

-    {

-#ifdef XWIN_XF86CONFIG

-      CHECK_ARGS (1);

-      g_cmdline.keyboard = argv[++i];

-#else

-      winMessageBoxF ("The -keyboard option is not supported in this "

-		      "release.\n"

-		      "Ignoring this option and continuing.\n",

-		      MB_ICONINFORMATION);

-#endif

-      return 2;

-    }

-

-  /*

-   * Look for the '-logfile' argument

-   */

-  if (IS_OPTION ("-logfile"))

-    {

-      CHECK_ARGS (1);

-      g_pszLogFile = argv[++i];

-#ifdef RELOCATE_PROJECTROOT

-      g_fLogFileChanged = TRUE;

-#endif

-      return 2;

-    }

-

-  /*

-   * Look for the '-logverbose' argument

-   */

-  if (IS_OPTION ("-logverbose"))

-    {

-      CHECK_ARGS (1);

-      g_iLogVerbose = atoi(argv[++i]);

-      return 2;

-    }

-

-#ifdef XWIN_CLIPBOARD

-  /*

-   * Look for the '-nounicodeclipboard' argument

-   */

-  if (IS_OPTION ("-nounicodeclipboard"))

-    {

-      g_fUnicodeClipboard = FALSE;

-      /* Indicate that we have processed the argument */

-      return 1;

-    }

-#endif

-

-  if (IS_OPTION ("-xkbrules"))

-    {

-      CHECK_ARGS (1);

-      g_cmdline.xkbRules = argv[++i];

-      return 2;

-    }

-  if (IS_OPTION ("-xkbmodel"))

-    {

-      CHECK_ARGS (1);

-      g_cmdline.xkbModel = argv[++i];

-      return 2;

-    }

-  if (IS_OPTION ("-xkblayout"))

-    {

-      CHECK_ARGS (1);

-      g_cmdline.xkbLayout = argv[++i];

-      return 2;

-    }

-  if (IS_OPTION ("-xkbvariant"))

-    {

-      CHECK_ARGS (1);

-      g_cmdline.xkbVariant = argv[++i];

-      return 2;

-    }

-  if (IS_OPTION ("-xkboptions"))

-    {

-      CHECK_ARGS (1);

-      g_cmdline.xkbOptions = argv[++i];

-      return 2;

-    }

-

-  if (IS_OPTION ("-keyhook"))

-    {

-      g_fKeyboardHookLL = TRUE;

-      return 1;

-    }

-  

-  if (IS_OPTION ("-nokeyhook"))

-    {

-      g_fKeyboardHookLL = FALSE;

-      return 1;

-    }

-  

-  if (IS_OPTION ("-swcursor"))

-    {

-      g_fSoftwareCursor = TRUE;

-      return 1;

-    }

-  

-  if (IS_OPTION ("-silent-dup-error"))

-    {

-      g_fSilentDupError = TRUE;

-      return 1;

-    }

-

-  if (IS_OPTION("-wgl"))

-    {

-      g_fNativeGl = TRUE;

-      return 1;

-    }

-

-  if (IS_OPTION("-nowgl"))

-    {

-      g_fNativeGl = FALSE;

-      return 1;

-    }

-

-  return 0;

-}

-

-

-/*

- * winLogCommandLine - Write entire command line to the log file

- */

-

-void

-winLogCommandLine (int argc, char *argv[])

-{

-  int		i;

-  int		iSize = 0;

-  int		iCurrLen = 0;

-

-#define CHARS_PER_LINE 60

-

-  /* Bail if command line has already been logged */

-  if (g_pszCommandLine)

-    return;

-

-  /* Count how much memory is needed for concatenated command line */

-  for (i = 0, iCurrLen = 0; i < argc; ++i)

-    if (argv[i])

-      {

-	/* Adds two characters for lines that overflow */

-	if ((strlen (argv[i]) < CHARS_PER_LINE

-	    && iCurrLen + strlen (argv[i]) > CHARS_PER_LINE)

-	    || strlen (argv[i]) > CHARS_PER_LINE)

-	  {

-	    iCurrLen = 0;

-	    iSize += 2;

-	  }

-	

-	/* Add space for item and trailing space */

-	iSize += strlen (argv[i]) + 1;

-

-	/* Update current line length */

-	iCurrLen += strlen (argv[i]);

-      }

-

-  /* Allocate memory for concatenated command line */

-  g_pszCommandLine = malloc (iSize + 1);

-  if (!g_pszCommandLine)

-    FatalError ("winLogCommandLine - Could not allocate memory for "

-		"command line string.  Exiting.\n");

-  

-  /* Set first character to concatenated command line to null */

-  g_pszCommandLine[0] = '\0';

-

-  /* Loop through all args */

-  for (i = 0, iCurrLen = 0; i < argc; ++i)

-    {

-      /* Add a character for lines that overflow */

-      if ((strlen (argv[i]) < CHARS_PER_LINE

-	   && iCurrLen + strlen (argv[i]) > CHARS_PER_LINE)

-	  || strlen (argv[i]) > CHARS_PER_LINE)

-      {

-	iCurrLen = 0;

-	

-	/* Add line break if it fits */

-	strncat (g_pszCommandLine, "\n ", iSize - strlen (g_pszCommandLine));

-      }

-      

-      strncat (g_pszCommandLine, argv[i], iSize - strlen (g_pszCommandLine));

-      strncat (g_pszCommandLine, " ", iSize - strlen (g_pszCommandLine));

-

-      /* Save new line length */

-      iCurrLen += strlen (argv[i]);

-    }

-

-  winDebug ("XWin was started with the following command line:\n\n"

-	  "%s\n\n", g_pszCommandLine);

-}

-

-

-/*

- * winLogVersionInfo - Log Cygwin/X version information

- */

-

-void

-winLogVersionInfo (void)

-{

-#ifdef WINDBG

-  static Bool		s_fBeenHere = FALSE;

-

-  if (s_fBeenHere)

-    return;

-  s_fBeenHere = TRUE;

-

-  winDebug ("Welcome to the VcXsrv X Server\n");

-  winDebug ("Vendor: %s\n", VENDOR_STRING);

-  winDebug ("Release: %d.%d.%d.%d (%d)\n\n", XORG_VERSION_MAJOR, XORG_VERSION_MINOR, XORG_VERSION_PATCH, XORG_VERSION_SNAP, XORG_VERSION_CURRENT);

-  winDebug ("%s\n\n", BUILDERSTRING);

-  winDebug ("Contact: %s\n\n", VENDOR_CONTACT);

-#endif

-}

-/*

- * getMonitorInfo - callback function used to return information from the enumeration of monitors attached

- */

-

-wBOOL CALLBACK getMonitorInfo(HMONITOR hMonitor, HDC hdc, LPRECT rect, LPARAM _data) 

-{

-  struct GetMonitorInfoData* data = (struct GetMonitorInfoData*)_data;

-  // only get data for monitor number specified in <data>

-  data->monitorNum++;

-  if (data->monitorNum == data->requestedMonitor) 

-  {

-	data->bMonitorSpecifiedExists = TRUE;

-	data->monitorOffsetX = rect->left;

-	data->monitorOffsetY = rect->top;

-	data->monitorHeight  = rect->bottom - rect->top;

-	data->monitorWidth   = rect->right  - rect->left;

-    return FALSE;

-  }

-  return TRUE;

-}

+/*
+
+Copyright 1993, 1998  The Open Group
+Copyright (C) Colin Harrison 2005-2008
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall
+not be used in advertising or otherwise to promote the sale, use or
+other dealings in this Software without prior written authorization
+from The Open Group.
+
+*/
+
+#ifdef HAVE_XWIN_CONFIG_H
+#include <xwin-config.h>
+#endif
+#ifdef XVENDORNAME
+#define VENDOR_STRING XVENDORNAME
+#define VENDOR_CONTACT BUILDERADDR
+#endif
+#include <../xfree86/common/xorgVersion.h>
+#include "win.h"
+#include "winconfig.h"
+#include "winprefs.h"
+#include "winmsg.h"
+#define COMPILE_MULTIMON_STUBS
+#include <multimon.h>
+/*
+ * References to external symbols
+ */
+
+extern int			g_iNumScreens;
+extern winScreenInfo *		g_ScreenInfo;
+#ifdef XWIN_CLIPBOARD
+extern Bool			g_fUnicodeClipboard;
+extern Bool			g_fClipboard;
+#endif
+extern int			g_iLogVerbose;
+extern const char *		g_pszLogFile;
+#ifdef RELOCATE_PROJECTROOT
+extern Bool			g_fLogFileChanged;
+#endif
+extern Bool			g_fXdmcpEnabled;
+extern Bool			g_fAuthEnabled;
+extern char *			g_pszCommandLine;
+extern Bool			g_fKeyboardHookLL;
+extern Bool			g_fNoHelpMessageBox;                     
+extern Bool			g_fSoftwareCursor;
+extern Bool			g_fSilentDupError;
+extern Bool			g_fNativeGl;
+
+/* globals required by callback function for monitor information */
+struct GetMonitorInfoData {
+    int  requestedMonitor;
+    int  monitorNum;
+    Bool bUserSpecifiedMonitor;
+    Bool bMonitorSpecifiedExists;
+    int  monitorOffsetX;
+    int  monitorOffsetY;
+    int  monitorHeight;
+    int  monitorWidth;
+};
+
+wBOOL CALLBACK getMonitorInfo(HMONITOR hMonitor, HDC hdc, LPRECT rect, LPARAM _data);
+
+static Bool QueryMonitor(int index, struct GetMonitorInfoData *data)
+{
+    /* prepare data */
+    if (data == NULL)
+        return FALSE;
+    memset(data, 0, sizeof(*data));
+    data->requestedMonitor = index;
+
+    /* query information */
+    xEnumDisplayMonitors(NULL, NULL, getMonitorInfo, (LPARAM) data);
+
+    return TRUE;
+}
+
+/*
+ * Function prototypes
+ */
+
+void
+winLogCommandLine (int argc, char *argv[]);
+
+void
+winLogVersionInfo (void);
+
+#ifdef DDXOSVERRORF
+void OsVendorVErrorF (const char *pszFormat, va_list va_args);
+#endif
+
+/*
+ * Process arguments on the command line
+ */
+
+static int iLastScreen = -1;
+static winScreenInfo defaultScreenInfo;
+
+static void
+winInitializeScreenDefaults(void)
+{
+  DWORD dwWidth, dwHeight;
+  static Bool fInitializedScreenDefaults = FALSE;
+
+  /* Bail out early if default screen has already been initialized */
+  if (fInitializedScreenDefaults)
+    return;
+
+  /* Zero the memory used for storing the screen info */
+  memset(&defaultScreenInfo, 0, sizeof(winScreenInfo));
+
+  /* Get default width and height */
+  /*
+   * NOTE: These defaults will cause the window to cover only
+   * the primary monitor in the case that we have multiple monitors.
+   */
+  dwWidth = GetSystemMetrics (SM_CXSCREEN);
+  dwHeight = GetSystemMetrics (SM_CYSCREEN);
+
+  winDebug ("winInitializeScreenDefaults - w %d h %d\n",
+	  (int) dwWidth, (int) dwHeight);
+
+  /* Set a default DPI, if no parameter was passed */
+  if (monitorResolution == 0)
+    monitorResolution = WIN_DEFAULT_DPI;
+
+  defaultScreenInfo.dwWidth  = dwWidth;
+  defaultScreenInfo.dwHeight = dwHeight;
+  defaultScreenInfo.dwUserWidth  = dwWidth;
+  defaultScreenInfo.dwUserHeight = dwHeight;
+  defaultScreenInfo.fUserGaveHeightAndWidth = WIN_DEFAULT_USER_GAVE_HEIGHT_AND_WIDTH;
+  defaultScreenInfo.fUserGavePosition = FALSE;
+  defaultScreenInfo.dwBPP = WIN_DEFAULT_BPP;
+  defaultScreenInfo.dwClipUpdatesNBoxes = WIN_DEFAULT_CLIP_UPDATES_NBOXES;
+#ifdef XWIN_EMULATEPSEUDO
+  defaultScreenInfo.fEmulatePseudo = WIN_DEFAULT_EMULATE_PSEUDO;
+#endif
+  defaultScreenInfo.dwRefreshRate = WIN_DEFAULT_REFRESH;
+  defaultScreenInfo.pfb = NULL;
+  defaultScreenInfo.fFullScreen = FALSE;
+  defaultScreenInfo.fDecoration = TRUE;
+#ifdef XWIN_MULTIWINDOWEXTWM
+  defaultScreenInfo.fMWExtWM = FALSE;
+  defaultScreenInfo.fInternalWM = FALSE;
+#endif
+  defaultScreenInfo.fRootless = FALSE;
+#ifdef XWIN_MULTIWINDOW
+  defaultScreenInfo.fMultiWindow = FALSE;
+#endif
+#if defined(XWIN_MULTIWINDOW) || defined(XWIN_MULTIWINDOWEXTWM)
+  defaultScreenInfo.fMultiMonitorOverride = FALSE;
+#endif
+  defaultScreenInfo.fMultipleMonitors = FALSE;
+  defaultScreenInfo.fLessPointer = FALSE;
+  defaultScreenInfo.fScrollbars = FALSE;
+  defaultScreenInfo.fNoTrayIcon = FALSE;
+  defaultScreenInfo.iE3BTimeout = WIN_E3B_OFF;
+  defaultScreenInfo.dwWidth_mm = (dwWidth / WIN_DEFAULT_DPI) * 25.4;
+  defaultScreenInfo.dwHeight_mm = (dwHeight / WIN_DEFAULT_DPI) * 25.4;
+  defaultScreenInfo.fUseWinKillKey = WIN_DEFAULT_WIN_KILL;
+  defaultScreenInfo.fUseUnixKillKey = WIN_DEFAULT_UNIX_KILL;
+  defaultScreenInfo.fIgnoreInput = FALSE;
+  defaultScreenInfo.fExplicitScreen = FALSE;
+
+  /* Note that the default screen has been initialized */
+  fInitializedScreenDefaults = TRUE;
+}
+
+static void
+winInitializeScreen(int i)
+{
+  winDebug ("winInitializeScreen - %d\n",i);
+
+  /* Initialize default screen values, if needed */
+  winInitializeScreenDefaults();
+
+  /* Copy the default screen info */
+  g_ScreenInfo[i] = defaultScreenInfo;
+
+  /* Set the screen number */
+  g_ScreenInfo[i].dwScreen = i;
+}
+
+void
+winInitializeScreens(int maxscreens)
+{
+  int i;
+  winDebug ("winInitializeScreens - %i\n", maxscreens);
+
+  if (maxscreens > g_iNumScreens)
+    {
+      /* Reallocate the memory for DDX-specific screen info */
+      g_ScreenInfo = realloc(g_ScreenInfo, maxscreens * sizeof (winScreenInfo));
+
+      /* Set default values for any new screens */
+      for (i = g_iNumScreens; i < maxscreens ; i++)
+        winInitializeScreen(i);
+
+      /* Keep a count of the number of screens */
+      g_iNumScreens = maxscreens;
+    }
+}
+
+/* See Porting Layer Definition - p. 57 */
+/*
+ * INPUT
+ * argv: pointer to an array of null-terminated strings, one for
+ *   each token in the X Server command line; the first token
+ *   is 'XWin.exe', or similar.
+ * argc: a count of the number of tokens stored in argv.
+ * i: a zero-based index into argv indicating the current token being
+ *   processed.
+ *
+ * OUTPUT
+ * return: return the number of tokens processed correctly.
+ *
+ * NOTE
+ * When looking for n tokens, check that i + n is less than argc.  Or,
+ *   you may check if i is greater than or equal to argc, in which case
+ *   you should display the UseMsg () and return 0.
+ */
+
+/* Check if enough arguments are given for the option */
+#define CHECK_ARGS(count) if (i + count >= argc) { UseMsg (); return 0; }
+
+/* Compare the current option with the string. */ 
+#define IS_OPTION(name) (strcmp (argv[i], name) == 0)
+
+int
+ddxProcessArgument (int argc, char *argv[], int i)
+{
+  static Bool		s_fBeenHere = FALSE;
+  winScreenInfo	*screenInfoPtr = NULL;
+
+  /* Initialize once */
+  if (!s_fBeenHere)
+    {
+#ifdef DDXOSVERRORF
+      /*
+       * This initialises our hook into VErrorF () for catching log messages
+       * that are generated before OsInit () is called.
+       */
+      OsVendorVErrorFProc = OsVendorVErrorF;
+#endif
+
+      s_fBeenHere = TRUE;
+
+      /* Initialize only if option is not -help */
+      if (!IS_OPTION("-help") && !IS_OPTION("-h") && !IS_OPTION("--help") &&
+          !IS_OPTION("-version") && !IS_OPTION("--version"))
+	{
+
+          /* Log the version information */
+          winLogVersionInfo ();
+
+          /* Log the command line */
+          winLogCommandLine (argc, argv);
+
+	  /*
+	   * Initialize default screen settings.  We have to do this before
+	   * OsVendorInit () gets called, otherwise we will overwrite
+	   * settings changed by parameters such as -fullscreen, etc.
+	   */
+	  winDebug ("ddxProcessArgument - Initializing default "
+			 "screens\n");
+	  winInitializeScreenDefaults();
+	}
+    }
+
+  winDebug ("ddxProcessArgument - arg: %s\n", argv[i]);
+
+  /*
+   * Look for the '-help' and similar options
+   */ 
+  if (IS_OPTION ("-help") || IS_OPTION("-h") || IS_OPTION("--help"))
+    {
+      /* Reset logfile. We don't need that helpmessage in the logfile */  
+      g_pszLogFile = NULL;
+      g_fNoHelpMessageBox = TRUE;
+      UseMsg();
+      exit (0);
+      return 1;
+    }
+
+  if (IS_OPTION ("-version") || IS_OPTION("--version"))
+    {
+      /* Reset logfile. We don't need that versioninfo in the logfile */  
+      g_pszLogFile = NULL;
+      winLogVersionInfo ();
+      exit (0);
+      return 1;
+    }
+
+  /*
+   * Look for the '-screen scr_num [width height]' argument
+   */
+  if (IS_OPTION ("-screen"))
+    {
+      int		iArgsProcessed = 1;
+      int		nScreenNum;
+      int		iWidth, iHeight, iX, iY;
+      int		iMonitor;
+
+      winDebug ("ddxProcessArgument - screen - argc: %d i: %d\n",
+	      argc, i);
+
+      /* Display the usage message if the argument is malformed */
+      if (i + 1 >= argc)
+	{
+	  return 0;
+	}
+      
+      /* Grab screen number */
+      nScreenNum = atoi (argv[i + 1]);
+
+      /* Validate the specified screen number */
+      if (nScreenNum < 0)
+        {
+          ErrorF ("ddxProcessArgument - screen - Invalid screen number %d\n",
+		  nScreenNum);
+          UseMsg ();
+	  return 0;
+        }
+
+      /*
+        Initialize default values for any new screens
+
+        Note that default values can't change after a -screen option is
+        seen, so it's safe to do this for each screen as it is introduced
+      */
+      winInitializeScreens(nScreenNum+1);
+
+	  /* look for @m where m is monitor number */
+	  if (i + 2 < argc
+		  && 1 == sscanf(argv[i + 2], "@%d", (int *) &iMonitor)) 
+      {
+        struct GetMonitorInfoData data;
+        if (!QueryMonitor(iMonitor, &data))
+        {
+            ErrorF ("ddxProcessArgument - screen - "
+                    "Querying monitors is not supported on NT4 and Win95\n");
+        } else if (data.bMonitorSpecifiedExists == TRUE) 
+        {
+		  winDebug("ddxProcessArgument - screen - Found Valid ``@Monitor'' = %d arg\n", iMonitor);
+		  iArgsProcessed = 3;
+		  g_ScreenInfo[nScreenNum].fUserGaveHeightAndWidth = FALSE;
+		  g_ScreenInfo[nScreenNum].fUserGavePosition = TRUE;
+		  g_ScreenInfo[nScreenNum].dwWidth = data.monitorWidth;
+		  g_ScreenInfo[nScreenNum].dwHeight = data.monitorHeight;
+		  g_ScreenInfo[nScreenNum].dwUserWidth = data.monitorWidth;
+		  g_ScreenInfo[nScreenNum].dwUserHeight = data.monitorHeight;
+		  g_ScreenInfo[nScreenNum].dwInitialX = data.monitorOffsetX;
+		  g_ScreenInfo[nScreenNum].dwInitialY = data.monitorOffsetY;
+		}
+		else 
+        {
+		  /* monitor does not exist, error out */
+		  ErrorF ("ddxProcessArgument - screen - Invalid monitor number %d\n",
+				  iMonitor);
+		  UseMsg ();
+		  exit (0);
+		  return 0;
+		}
+	  }
+
+      /* Look for 'WxD' or 'W D' */
+      else if (i + 2 < argc
+	  && 2 == sscanf (argv[i + 2], "%dx%d",
+			  (int *) &iWidth,
+			  (int *) &iHeight))
+	{
+	  winDebug ("ddxProcessArgument - screen - Found ``WxD'' arg\n");
+	  iArgsProcessed = 3;
+	  g_ScreenInfo[nScreenNum].fUserGaveHeightAndWidth = TRUE;
+	  g_ScreenInfo[nScreenNum].dwWidth = iWidth;
+	  g_ScreenInfo[nScreenNum].dwHeight = iHeight;
+	  g_ScreenInfo[nScreenNum].dwUserWidth = iWidth;
+	  g_ScreenInfo[nScreenNum].dwUserHeight = iHeight;
+	  /* Look for WxD+X+Y */
+	  if (2 == sscanf (argv[i + 2], "%*dx%*d+%d+%d",
+			   (int *) &iX,
+			   (int *) &iY))
+	  {
+	    winDebug("ddxProcessArgument - screen - Found ``X+Y'' arg\n");
+	    g_ScreenInfo[nScreenNum].fUserGavePosition = TRUE;
+	    g_ScreenInfo[nScreenNum].dwInitialX = iX;
+	    g_ScreenInfo[nScreenNum].dwInitialY = iY;
+
+		/* look for WxD+X+Y@m where m is monitor number. take X,Y to be offsets from monitor's root position */
+		if (1 == sscanf (argv[i + 2], "%*dx%*d+%*d+%*d@%d",
+						 (int *) &iMonitor)) 
+        {
+          struct GetMonitorInfoData data;
+          if (!QueryMonitor(iMonitor, &data))
+          {
+              ErrorF ("ddxProcessArgument - screen - "
+                      "Querying monitors is not supported on NT4 and Win95\n");
+          } else if (data.bMonitorSpecifiedExists == TRUE) 
+          {
+			g_ScreenInfo[nScreenNum].dwInitialX += data.monitorOffsetX;
+			g_ScreenInfo[nScreenNum].dwInitialY += data.monitorOffsetY;
+		  }
+		  else 
+          {
+			/* monitor does not exist, error out */
+			ErrorF ("ddxProcessArgument - screen - Invalid monitor number %d\n",
+					iMonitor);
+			UseMsg ();
+			exit (0);
+			return 0;
+		  }
+
+		}
+	  }
+
+	  /* look for WxD@m where m is monitor number */
+	  else if (1 == sscanf(argv[i + 2], "%*dx%*d@%d",
+						   (int *) &iMonitor)) 
+      {
+        struct GetMonitorInfoData data;
+        if (!QueryMonitor(iMonitor, &data))
+        {
+		  ErrorF ("ddxProcessArgument - screen - "
+                  "Querying monitors is not supported on NT4 and Win95\n");
+        } else if (data.bMonitorSpecifiedExists == TRUE) 
+        {
+		  winDebug ("ddxProcessArgument - screen - Found Valid ``@Monitor'' = %d arg\n", iMonitor);
+		  g_ScreenInfo[nScreenNum].fUserGavePosition = TRUE;
+		  g_ScreenInfo[nScreenNum].dwInitialX = data.monitorOffsetX;
+		  g_ScreenInfo[nScreenNum].dwInitialY = data.monitorOffsetY;
+		}
+		else 
+        {
+		  /* monitor does not exist, error out */
+		  ErrorF ("ddxProcessArgument - screen - Invalid monitor number %d\n",
+				  iMonitor);
+		  UseMsg ();
+		  exit (0);
+		  return 0;
+		}
+
+	  }
+	}
+      else if (i + 3 < argc
+	       && 1 == sscanf (argv[i + 2], "%d",
+			       (int *) &iWidth)
+	       && 1 == sscanf (argv[i + 3], "%d",
+			       (int *) &iHeight))
+	{
+	  winDebug ("ddxProcessArgument - screen - Found ``W D'' arg\n");
+	  iArgsProcessed = 4;
+	  g_ScreenInfo[nScreenNum].fUserGaveHeightAndWidth = TRUE;
+	  g_ScreenInfo[nScreenNum].dwWidth = iWidth;
+	  g_ScreenInfo[nScreenNum].dwHeight = iHeight;
+	  g_ScreenInfo[nScreenNum].dwUserWidth = iWidth;
+	  g_ScreenInfo[nScreenNum].dwUserHeight = iHeight;
+	  if (i + 5 < argc
+	      && 1 == sscanf (argv[i + 4], "%d",
+			      (int *) &iX)
+	      && 1 == sscanf (argv[i + 5], "%d",
+			      (int *) &iY))
+	  {
+	    winDebug ("ddxProcessArgument - screen - Found ``X Y'' arg\n");
+	    iArgsProcessed = 6;
+	    g_ScreenInfo[nScreenNum].fUserGavePosition = TRUE;
+	    g_ScreenInfo[nScreenNum].dwInitialX = iX;
+	    g_ScreenInfo[nScreenNum].dwInitialY = iY;
+	  }
+	}
+      else
+	{
+	  ErrorF ("ddxProcessArgument - screen - Did not find size arg. "
+		  "dwWidth: %d dwHeight: %d\n",
+		  (int) g_ScreenInfo[nScreenNum].dwWidth,
+		  (int) g_ScreenInfo[nScreenNum].dwHeight);
+	  iArgsProcessed = 2;
+	  g_ScreenInfo[nScreenNum].fUserGaveHeightAndWidth = FALSE;
+	}
+
+      /* Calculate the screen width and height in millimeters */
+      if (g_ScreenInfo[nScreenNum].fUserGaveHeightAndWidth)
+	{
+	  g_ScreenInfo[nScreenNum].dwWidth_mm
+	    = (g_ScreenInfo[nScreenNum].dwWidth
+	       / monitorResolution) * 25.4;
+	  g_ScreenInfo[nScreenNum].dwHeight_mm
+	    = (g_ScreenInfo[nScreenNum].dwHeight
+	       / monitorResolution) * 25.4;
+	}
+
+      /* Flag that this screen was explicity specified by the user */
+      g_ScreenInfo[nScreenNum].fExplicitScreen = TRUE;
+
+      /*
+       * Keep track of the last screen number seen, as parameters seen
+       * before a screen number apply to all screens, whereas parameters
+       * seen after a screen number apply to that screen number only.
+       */
+      iLastScreen = nScreenNum;
+
+      return iArgsProcessed;
+    }
+
+
+  /*
+   * Is this parameter attached to a screen or global?
+   *
+   * If the parameter is for all screens (appears before
+   * any -screen option), store it in the default screen
+   * info
+   *
+   * If the parameter is for a single screen (appears
+   * after a -screen option), store it in the screen info
+   * for that screen
+   *
+   */
+  if (iLastScreen == -1)
+    {
+      screenInfoPtr = &defaultScreenInfo;
+    }
+  else
+    {
+      screenInfoPtr = &(g_ScreenInfo[iLastScreen]);
+    }
+
+  /*
+   * Look for the '-engine n' argument
+   */
+  if (IS_OPTION ("-engine"))
+    {
+      DWORD		dwEngine = 0;
+      CARD8		c8OnBits = 0;
+      
+      /* Display the usage message if the argument is malformed */
+      if (++i >= argc)
+	{
+	  UseMsg ();
+	  return 0;
+	}
+
+      /* Grab the argument */
+      dwEngine = atoi (argv[i]);
+
+      /* Count the one bits in the engine argument */
+      c8OnBits = winCountBits (dwEngine);
+
+      /* Argument should only have a single bit on */
+      if (c8OnBits != 1)
+	{
+	  UseMsg ();
+	  return 0;
+	}
+
+      screenInfoPtr->dwEnginePreferred = dwEngine;
+      
+      /* Indicate that we have processed the argument */
+      return 2;
+    }
+
+  /*
+   * Look for the '-fullscreen' argument
+   */
+  if (IS_OPTION ("-fullscreen"))
+    {
+#if defined(XWIN_MULTIWINDOW) || defined(XWIN_MULTIWINDOWEXTWM)
+          if (!screenInfoPtr->fMultiMonitorOverride)
+            screenInfoPtr->fMultipleMonitors = FALSE;
+#endif
+	  screenInfoPtr->fFullScreen = TRUE;
+
+      /* Indicate that we have processed this argument */
+      return 1;
+    }
+
+  /*
+   * Look for the '-lesspointer' argument
+   */
+  if (IS_OPTION ("-lesspointer"))
+    {
+      screenInfoPtr->fLessPointer = TRUE;
+
+      /* Indicate that we have processed this argument */
+      return 1;
+    }
+
+  /*
+   * Look for the '-nodecoration' argument
+   */
+  if (IS_OPTION ("-nodecoration"))
+    {
+#if defined(XWIN_MULTIWINDOW) || defined(XWIN_MULTIWINDOWEXTWM)
+      if (!screenInfoPtr->fMultiMonitorOverride)
+        screenInfoPtr->fMultipleMonitors = FALSE;
+#endif
+      screenInfoPtr->fDecoration = FALSE;
+
+      /* Indicate that we have processed this argument */
+      return 1;
+    }
+
+#ifdef XWIN_MULTIWINDOWEXTWM
+  /*
+   * Look for the '-mwextwm' argument
+   */
+  if (IS_OPTION ("-mwextwm"))
+    {
+      if (!screenInfoPtr->fMultiMonitorOverride)
+        screenInfoPtr->fMultipleMonitors = TRUE;
+      screenInfoPtr->fMWExtWM = TRUE;
+
+      /* Indicate that we have processed this argument */
+      return 1;
+    }
+  /*
+   * Look for the '-internalwm' argument
+   */
+  if (IS_OPTION ("-internalwm"))
+    {
+      if (!screenInfoPtr->fMultiMonitorOverride)
+        screenInfoPtr->fMultipleMonitors = TRUE;
+      screenInfoPtr->fMWExtWM = TRUE;
+      screenInfoPtr->fInternalWM = TRUE;
+
+      /* Indicate that we have processed this argument */
+      return 1;
+    }
+#endif
+
+  /*
+   * Look for the '-rootless' argument
+   */
+  if (IS_OPTION ("-rootless"))
+    {
+#if defined(XWIN_MULTIWINDOW) || defined(XWIN_MULTIWINDOWEXTWM)
+      if (!screenInfoPtr->fMultiMonitorOverride)
+        screenInfoPtr->fMultipleMonitors = FALSE;
+#endif
+      screenInfoPtr->fRootless = TRUE;
+
+      /* Indicate that we have processed this argument */
+      return 1;
+    }
+
+#ifdef XWIN_MULTIWINDOW
+  /*
+   * Look for the '-multiwindow' argument
+   */
+  if (IS_OPTION ("-multiwindow"))
+    {
+#if defined(XWIN_MULTIWINDOW) || defined(XWIN_MULTIWINDOWEXTWM)
+      if (!screenInfoPtr->fMultiMonitorOverride)
+        screenInfoPtr->fMultipleMonitors = TRUE;
+#endif
+      screenInfoPtr->fMultiWindow = TRUE;
+
+      /* Indicate that we have processed this argument */
+      return 1;
+    }
+#endif
+
+  /*
+   * Look for the '-multiplemonitors' argument
+   */
+  if (IS_OPTION ("-multiplemonitors")
+      || IS_OPTION ("-multimonitors"))
+    {
+#if defined(XWIN_MULTIWINDOW) || defined(XWIN_MULTIWINDOWEXTWM)
+      screenInfoPtr->fMultiMonitorOverride = TRUE;
+#endif
+      screenInfoPtr->fMultipleMonitors = TRUE;
+
+      /* Indicate that we have processed this argument */
+      return 1;
+    }
+
+  /*
+   * Look for the '-nomultiplemonitors' argument
+   */
+  if (IS_OPTION ("-nomultiplemonitors")
+      || IS_OPTION ("-nomultimonitors"))
+    {
+#if defined(XWIN_MULTIWINDOW) || defined(XWIN_MULTIWINDOWEXTWM)
+      screenInfoPtr->fMultiMonitorOverride = TRUE;
+#endif
+      screenInfoPtr->fMultipleMonitors = FALSE;
+
+      /* Indicate that we have processed this argument */
+      return 1;
+    }
+
+
+  /*
+   * Look for the '-scrollbars' argument
+   */
+  if (IS_OPTION ("-scrollbars"))
+    {
+      screenInfoPtr->fScrollbars = TRUE;
+
+      /* Indicate that we have processed this argument */
+      return 1;
+    }
+
+
+#ifdef XWIN_CLIPBOARD
+  /*
+   * Look for the '-clipboard' argument
+   */
+  if (IS_OPTION ("-clipboard"))
+    {
+      /* Now the default, we still accept the arg for backwards compatibility */
+      g_fClipboard = TRUE;
+
+      /* Indicate that we have processed this argument */
+      return 1;
+    }
+
+  /*
+   * Look for the '-noclipboard' argument
+   */
+  if (IS_OPTION ("-noclipboard"))
+    {
+      g_fClipboard = FALSE;
+
+      /* Indicate that we have processed this argument */
+      return 1;
+    }
+#endif
+
+
+  /*
+   * Look for the '-ignoreinput' argument
+   */
+  if (IS_OPTION ("-ignoreinput"))
+    {
+      screenInfoPtr->fIgnoreInput = TRUE;
+
+      /* Indicate that we have processed this argument */
+      return 1;
+    }
+
+  /*
+   * Look for the '-emulate3buttons' argument
+   */
+  if (IS_OPTION ("-emulate3buttons"))
+    {
+      int	iArgsProcessed = 1;
+      int	iE3BTimeout = WIN_DEFAULT_E3B_TIME;
+
+      /* Grab the optional timeout value */
+      if (i + 1 < argc
+	  && 1 == sscanf (argv[i + 1], "%d",
+			  &iE3BTimeout))
+        {
+	  /* Indicate that we have processed the next argument */
+	  iArgsProcessed++;
+        }
+      else
+	{
+	  /*
+	   * sscanf () won't modify iE3BTimeout if it doesn't find
+	   * the specified format; however, I want to be explicit
+	   * about setting the default timeout in such cases to
+	   * prevent some programs (me) from getting confused.
+	   */
+	  iE3BTimeout = WIN_DEFAULT_E3B_TIME;
+	}
+
+      screenInfoPtr->iE3BTimeout = iE3BTimeout;
+
+      /* Indicate that we have processed this argument */
+      return iArgsProcessed;
+    }
+
+  /*
+   * Look for the '-depth n' argument
+   */
+  if (IS_OPTION ("-depth"))
+    {
+      DWORD		dwBPP = 0;
+      
+      /* Display the usage message if the argument is malformed */
+      if (++i >= argc)
+	{
+	  UseMsg ();
+	  return 0;
+	}
+
+      /* Grab the argument */
+      dwBPP = atoi (argv[i]);
+
+      screenInfoPtr->dwBPP = dwBPP;
+
+      /* Indicate that we have processed the argument */
+      return 2;
+    }
+
+  /*
+   * Look for the '-refresh n' argument
+   */
+  if (IS_OPTION ("-refresh"))
+    {
+      DWORD		dwRefreshRate = 0;
+      
+      /* Display the usage message if the argument is malformed */
+      if (++i >= argc)
+	{
+	  UseMsg ();
+	  return 0;
+	}
+
+      /* Grab the argument */
+      dwRefreshRate = atoi (argv[i]);
+
+      screenInfoPtr->dwRefreshRate = dwRefreshRate;
+
+      /* Indicate that we have processed the argument */
+      return 2;
+    }
+
+  /*
+   * Look for the '-clipupdates num_boxes' argument
+   */
+  if (IS_OPTION ("-clipupdates"))
+    {
+      DWORD		dwNumBoxes = 0;
+      
+      /* Display the usage message if the argument is malformed */
+      if (++i >= argc)
+	{
+	  UseMsg ();
+	  return 0;
+	}
+
+      /* Grab the argument */
+      dwNumBoxes = atoi (argv[i]);
+
+      screenInfoPtr->dwClipUpdatesNBoxes = dwNumBoxes;
+
+      /* Indicate that we have processed the argument */
+      return 2;
+    }
+
+#ifdef XWIN_EMULATEPSEUDO
+  /*
+   * Look for the '-emulatepseudo' argument
+   */
+  if (IS_OPTION ("-emulatepseudo"))
+    {
+      screenInfoPtr->fEmulatePseudo = TRUE;
+
+      /* Indicate that we have processed this argument */
+      return 1;
+    }
+#endif
+
+  /*
+   * Look for the '-nowinkill' argument
+   */
+  if (IS_OPTION ("-nowinkill"))
+    {
+      screenInfoPtr->fUseWinKillKey = FALSE;
+
+      /* Indicate that we have processed this argument */
+      return 1;
+    }
+
+  /*
+   * Look for the '-winkill' argument
+   */
+  if (IS_OPTION ("-winkill"))
+    {
+      screenInfoPtr->fUseWinKillKey = TRUE;
+
+      /* Indicate that we have processed this argument */
+      return 1;
+    }
+
+  /*
+   * Look for the '-nounixkill' argument
+   */
+  if (IS_OPTION ("-nounixkill"))
+    {
+      screenInfoPtr->fUseUnixKillKey = FALSE;
+
+      /* Indicate that we have processed this argument */
+      return 1;
+    }
+
+  /*
+   * Look for the '-unixkill' argument
+   */
+  if (IS_OPTION ("-unixkill"))
+    {
+      screenInfoPtr->fUseUnixKillKey = TRUE;
+
+      /* Indicate that we have processed this argument */
+      return 1;
+    }
+
+  /*
+   * Look for the '-notrayicon' argument
+   */
+  if (IS_OPTION ("-notrayicon"))
+    {
+      screenInfoPtr->fNoTrayIcon = TRUE;
+
+      /* Indicate that we have processed this argument */
+      return 1;
+    }
+
+  /*
+   * Look for the '-trayicon' argument
+   */
+  if (IS_OPTION ("-trayicon"))
+    {
+      screenInfoPtr->fNoTrayIcon = FALSE;
+
+      /* Indicate that we have processed this argument */
+      return 1;
+    }
+
+  /*
+   * Look for the '-fp' argument
+   */
+  if (IS_OPTION ("-fp"))
+    {
+      CHECK_ARGS (1);
+      g_cmdline.fontPath = argv[++i];
+      return 0; /* Let DIX parse this again */
+    }
+
+  /*
+   * Look for the '-query' argument
+   */
+  if (IS_OPTION ("-query"))
+    {
+      CHECK_ARGS (1);
+      g_fXdmcpEnabled = TRUE;
+      g_pszQueryHost = argv[++i];
+      return 0; /* Let DIX parse this again */
+    }
+
+  /*
+   * Look for the '-auth' argument
+   */
+  if (IS_OPTION ("-auth"))
+    {
+      g_fAuthEnabled = TRUE;
+      return 0; /* Let DIX parse this again */
+    }
+
+  /*
+   * Look for the '-indirect' or '-broadcast' arguments
+   */
+  if (IS_OPTION ("-indirect")
+      || IS_OPTION ("-broadcast"))
+    {
+      g_fXdmcpEnabled = TRUE;
+      return 0; /* Let DIX parse this again */
+    }
+
+  /*
+   * Look for the '-config' argument
+   */
+  if (IS_OPTION ("-config")
+      || IS_OPTION ("-xf86config"))
+    {
+      CHECK_ARGS (1);
+#ifdef XWIN_XF86CONFIG
+      g_cmdline.configFile = argv[++i];
+#else
+      winMessageBoxF ("The %s option is not supported in this "
+		      "release.\n"
+		      "Ignoring this option and continuing.\n",
+		      MB_ICONINFORMATION,
+		      argv[i]);
+#endif
+      return 2;
+    }
+
+  /*
+   * Look for the '-configdir' argument
+   */
+  if (IS_OPTION ("-configdir"))
+    {
+      CHECK_ARGS (1);
+#ifdef XWIN_XF86CONFIG
+      g_cmdline.configDir = argv[++i];
+#else
+      winMessageBoxF ("The %s option is not supported in this "
+		      "release.\n"
+		      "Ignoring this option and continuing.\n",
+		      MB_ICONINFORMATION,
+		      argv[i]);
+#endif
+      return 2;
+    }
+
+  /*
+   * Look for the '-keyboard' argument
+   */
+  if (IS_OPTION ("-keyboard"))
+    {
+#ifdef XWIN_XF86CONFIG
+      CHECK_ARGS (1);
+      g_cmdline.keyboard = argv[++i];
+#else
+      winMessageBoxF ("The -keyboard option is not supported in this "
+		      "release.\n"
+		      "Ignoring this option and continuing.\n",
+		      MB_ICONINFORMATION);
+#endif
+      return 2;
+    }
+
+  /*
+   * Look for the '-logfile' argument
+   */
+  if (IS_OPTION ("-logfile"))
+    {
+      CHECK_ARGS (1);
+      g_pszLogFile = argv[++i];
+#ifdef RELOCATE_PROJECTROOT
+      g_fLogFileChanged = TRUE;
+#endif
+      return 2;
+    }
+
+  /*
+   * Look for the '-logverbose' argument
+   */
+  if (IS_OPTION ("-logverbose"))
+    {
+      CHECK_ARGS (1);
+      g_iLogVerbose = atoi(argv[++i]);
+      return 2;
+    }
+
+#ifdef XWIN_CLIPBOARD
+  /*
+   * Look for the '-nounicodeclipboard' argument
+   */
+  if (IS_OPTION ("-nounicodeclipboard"))
+    {
+      g_fUnicodeClipboard = FALSE;
+      /* Indicate that we have processed the argument */
+      return 1;
+    }
+#endif
+
+  if (IS_OPTION ("-xkbrules"))
+    {
+      CHECK_ARGS (1);
+      g_cmdline.xkbRules = argv[++i];
+      return 2;
+    }
+  if (IS_OPTION ("-xkbmodel"))
+    {
+      CHECK_ARGS (1);
+      g_cmdline.xkbModel = argv[++i];
+      return 2;
+    }
+  if (IS_OPTION ("-xkblayout"))
+    {
+      CHECK_ARGS (1);
+      g_cmdline.xkbLayout = argv[++i];
+      return 2;
+    }
+  if (IS_OPTION ("-xkbvariant"))
+    {
+      CHECK_ARGS (1);
+      g_cmdline.xkbVariant = argv[++i];
+      return 2;
+    }
+  if (IS_OPTION ("-xkboptions"))
+    {
+      CHECK_ARGS (1);
+      g_cmdline.xkbOptions = argv[++i];
+      return 2;
+    }
+
+  if (IS_OPTION ("-keyhook"))
+    {
+      g_fKeyboardHookLL = TRUE;
+      return 1;
+    }
+  
+  if (IS_OPTION ("-nokeyhook"))
+    {
+      g_fKeyboardHookLL = FALSE;
+      return 1;
+    }
+  
+  if (IS_OPTION ("-swcursor"))
+    {
+      g_fSoftwareCursor = TRUE;
+      return 1;
+    }
+  
+  if (IS_OPTION ("-silent-dup-error"))
+    {
+      g_fSilentDupError = TRUE;
+      return 1;
+    }
+
+  if (IS_OPTION("-wgl"))
+    {
+      g_fNativeGl = TRUE;
+      return 1;
+    }
+
+  if (IS_OPTION("-nowgl"))
+    {
+      g_fNativeGl = FALSE;
+      return 1;
+    }
+
+  return 0;
+}
+
+
+/*
+ * winLogCommandLine - Write entire command line to the log file
+ */
+
+void
+winLogCommandLine (int argc, char *argv[])
+{
+  int		i;
+  int		iSize = 0;
+  int		iCurrLen = 0;
+
+#define CHARS_PER_LINE 60
+
+  /* Bail if command line has already been logged */
+  if (g_pszCommandLine)
+    return;
+
+  /* Count how much memory is needed for concatenated command line */
+  for (i = 0, iCurrLen = 0; i < argc; ++i)
+    if (argv[i])
+      {
+	/* Adds two characters for lines that overflow */
+	if ((strlen (argv[i]) < CHARS_PER_LINE
+	    && iCurrLen + strlen (argv[i]) > CHARS_PER_LINE)
+	    || strlen (argv[i]) > CHARS_PER_LINE)
+	  {
+	    iCurrLen = 0;
+	    iSize += 2;
+	  }
+	
+	/* Add space for item and trailing space */
+	iSize += strlen (argv[i]) + 1;
+
+	/* Update current line length */
+	iCurrLen += strlen (argv[i]);
+      }
+
+  /* Allocate memory for concatenated command line */
+  g_pszCommandLine = malloc (iSize + 1);
+  if (!g_pszCommandLine)
+    FatalError ("winLogCommandLine - Could not allocate memory for "
+		"command line string.  Exiting.\n");
+  
+  /* Set first character to concatenated command line to null */
+  g_pszCommandLine[0] = '\0';
+
+  /* Loop through all args */
+  for (i = 0, iCurrLen = 0; i < argc; ++i)
+    {
+      /* Add a character for lines that overflow */
+      if ((strlen (argv[i]) < CHARS_PER_LINE
+	   && iCurrLen + strlen (argv[i]) > CHARS_PER_LINE)
+	  || strlen (argv[i]) > CHARS_PER_LINE)
+      {
+	iCurrLen = 0;
+	
+	/* Add line break if it fits */
+	strncat (g_pszCommandLine, "\n ", iSize - strlen (g_pszCommandLine));
+      }
+      
+      strncat (g_pszCommandLine, argv[i], iSize - strlen (g_pszCommandLine));
+      strncat (g_pszCommandLine, " ", iSize - strlen (g_pszCommandLine));
+
+      /* Save new line length */
+      iCurrLen += strlen (argv[i]);
+    }
+
+  winDebug ("XWin was started with the following command line:\n\n"
+	  "%s\n\n", g_pszCommandLine);
+}
+
+
+/*
+ * winLogVersionInfo - Log Cygwin/X version information
+ */
+
+void
+winLogVersionInfo (void)
+{
+#ifdef WINDBG
+  static Bool		s_fBeenHere = FALSE;
+
+  if (s_fBeenHere)
+    return;
+  s_fBeenHere = TRUE;
+
+  winDebug ("Welcome to the VcXsrv X Server\n");
+  winDebug ("Vendor: %s\n", VENDOR_STRING);
+  winDebug ("Release: %d.%d.%d.%d (%d)\n\n", XORG_VERSION_MAJOR, XORG_VERSION_MINOR, XORG_VERSION_PATCH, XORG_VERSION_SNAP, XORG_VERSION_CURRENT);
+  winDebug ("%s\n\n", BUILDERSTRING);
+  winDebug ("Contact: %s\n\n", VENDOR_CONTACT);
+#endif
+}
+/*
+ * getMonitorInfo - callback function used to return information from the enumeration of monitors attached
+ */
+
+wBOOL CALLBACK getMonitorInfo(HMONITOR hMonitor, HDC hdc, LPRECT rect, LPARAM _data) 
+{
+  struct GetMonitorInfoData* data = (struct GetMonitorInfoData*)_data;
+  // only get data for monitor number specified in <data>
+  data->monitorNum++;
+  if (data->monitorNum == data->requestedMonitor) 
+  {
+	data->bMonitorSpecifiedExists = TRUE;
+	data->monitorOffsetX = rect->left;
+	data->monitorOffsetY = rect->top;
+	data->monitorHeight  = rect->bottom - rect->top;
+	data->monitorWidth   = rect->right  - rect->left;
+    return FALSE;
+  }
+  return TRUE;
+}
diff --git a/xorg-server/hw/xwin/winscrinit.c b/xorg-server/hw/xwin/winscrinit.c
index 84341c8fb..501a999a4 100644
--- a/xorg-server/hw/xwin/winscrinit.c
+++ b/xorg-server/hw/xwin/winscrinit.c
@@ -194,7 +194,7 @@ winScreenInit (int index,
 
       /* 
        * In this case, some of the defaults set in
-       * winInitializeDefaultScreens () are not correct ...
+       * winInitializeScreenDefaults() are not correct ...
        */
       if (!pScreenInfo->fUserGaveHeightAndWidth)
 	{
diff --git a/xorg-server/hw/xwin/winvalargs.c b/xorg-server/hw/xwin/winvalargs.c
index 1c9b17fde..6f8d1c994 100644
--- a/xorg-server/hw/xwin/winvalargs.c
+++ b/xorg-server/hw/xwin/winvalargs.c
@@ -40,17 +40,24 @@
  */
 
 extern int			g_iNumScreens;
-extern winScreenInfo		g_ScreenInfo[];
+extern winScreenInfo *		g_ScreenInfo;
 extern Bool			g_fXdmcpEnabled;
 
 
 /*
- * Prototypes
+ * Verify all screens have been explicitly specified
  */
+static BOOL
+isEveryScreenExplicit(void)
+{
+  int i;
 
-Bool
-winValidateArgs (void);
+  for (i = 0; i < g_iNumScreens; i++)
+    if (!g_ScreenInfo[i].fExplicitScreen)
+      return FALSE;
 
+  return TRUE;
+}
 
 /*
  * winValidateArgs - Look for invalid argument combinations
@@ -62,6 +69,7 @@ winValidateArgs (void)
   int		i;
   int		iMaxConsecutiveScreen = 0;
   BOOL		fHasNormalScreen0 = FALSE;
+  BOOL		fImplicitScreenFound = FALSE;
 
   /*
    * Check for a malformed set of -screen parameters.
@@ -70,23 +78,14 @@ winValidateArgs (void)
    *	XWin -screen 0 -screen 2
    *	XWin -screen 1 -screen 2
    */
-  for (i = 0; i < MAXSCREENS; i++)
-    {
-      if (g_ScreenInfo[i].fExplicitScreen)
-	iMaxConsecutiveScreen = i + 1;
-    }
-  winDebug ("winValidateArgs - g_iNumScreens: %d "
-		 "iMaxConsecutiveScreen: %d\n",
-		 g_iNumScreens, iMaxConsecutiveScreen);
-  if (g_iNumScreens < iMaxConsecutiveScreen)
+  if (!isEveryScreenExplicit())
     {
       ErrorF ("winValidateArgs - Malformed set of screen parameter(s).  "
 	      "Screens must be specified consecutively starting with "
 	      "screen 0.  That is, you cannot have only a screen 1, nor "
 	      "could you have screen 0 and screen 2.  You instead must "
-	      "have screen 0, or screen 0 and screen 1, respectively.  Of "
-	      "you can specify as many screens as you want from 0 up to "
-	      "%d.\n", MAXSCREENS - 1);
+	      "have screen 0, or screen 0 and screen 1, respectively.  "
+	      "You can specify as many screens as you want.\n");
       return FALSE;
     }