contrib subdir

2000-10-06  Havoc Pennington  <hp@redhat.com>

	* Makefile.am (SRC_SUBDIRS): contrib subdir

	* gdk/gdkpixbuf.h: Move GdkPixbufAlphaMode to gdk-pixbuf library,
	so it can be used in Xlib version

	* demos/testpixbuf.c (update_timeout): error checking from 1.0
	tree

	* gtk/gdk-pixbuf-loader.c (gdk_pixbuf_loader_get_pixbuf): Sync
	change from 1.0 tree that returns first frame of animation
	if the loaded file is an animation.

        * contrib: add new directory to hold stuff that comes with GTK+
	but isn't really part of GTK+ (for now, gdk-pixbuf-xlib)

	* configure.in: add contrib/*

2000-10-06  Havoc Pennington  <hp@redhat.com>

	* gdk-pixbuf.h: add GdkPixbufAlphaMode

2000-10-06  Havoc Pennington  <hp@redhat.com>

        This entry is a summary of the merged-in changes from 1.0.
	Relevant original ChangeLog entries are spliced in after
	this entry; the files they refer to are from the 1.0
	gdk-pixbuf sources.

	* pixops/pixops.c (pixops_composite_nearest): sync a small fix
	from 1.0

	* io-xpm.c (xpm_seek_string): add fscanf error check from 1.0
	Add progressive loader from 1.0

	* io-tiff.c (gdk_pixbuf__tiff_image_begin_load): mem leak fixes
	from 1.0 tree

	* io-pnm.c: new version from 1.0 tree

	* io-jpeg.c (gdk_pixbuf__jpeg_image_load): sync from 1.0, use
	malloc not g_malloc

	* io-gif.c (lzw_read_byte): sync from 1.0, change a g_error to
	g_warning
	(gif_get_next_step): return 0 here, sync from 1.0

	* gdk-pixbuf-util.c: sync email address change for Cody
	Russell

2000-09-11  Jeffrey Stedfast  <fejj@helixcode.com>

	* gdk-pixbuf/io-pnm.c: Pretty much totally rewrote again because
	last nights code was still "broken". Should now properly handle
	all error conditions gracefully.

2000-09-10  Jeffrey Stedfast  <fejj@helixcode.com>

	* gdk-pixbuf/io-pnm.c: Rewrote.

2000-09-09  Federico Mena Quintero  <federico@helixcode.com>

	* gdk-pixbuf/pixops/pixops.c (pixops_composite_nearest): Compute
	the correct dest offset.

2000-08-25  Federico Mena Quintero  <federico@helixcode.com>

	* gdk-pixbuf/io-xpm.c: #include <unistd.h>

2000-08-05  Larry Ewing  <lewing@helixcode.com>

	* gdk-pixbuf/io-tiff.c: stop leaking context->tempname.

	* gdk-pixbuf/io-xpm.c: same as above.

2000-07-26  Michael Meeks  <michael@helixcode.com>

	* gdk-pixbuf/io-jpeg.c (gdk_pixbuf__jpeg_image_load): make
	g_malloc a malloc.

2000-07-21  Larry Ewing  <lewing@helixcode.com>

	* gdk-pixbuf/io-xpm.c: add a fake progressive loader so that
	xpm at least supports the progressive interface like the one in
	io-tiff.c. This should be reimplemented as an actual progressive
	loader.

2000-07-19  Jonathan Blandford  <jrb@redhat.com>

	* demo/pixbuf-demo.c (update_timeout): changed scaling level to
	make it look better.
	* gdk-pixbuf/testpixbuf.c (update_timeout): Patch from michael
	meeks to handle errors better.

9 files changed, 5873 insertions, 0 deletions

diff --git a/contrib/gdk-pixbuf-xlib/ChangeLog b/contrib/gdk-pixbuf-xlib/ChangeLog
new file mode 100644
index 0000000000..14bec62178
--- /dev/null
+++ b/contrib/gdk-pixbuf-xlib/ChangeLog
@@ -0,0 +1,53 @@
+2000-10-06  Havoc Pennington  <hp@redhat.com>
+
+	* gdk-pixbuf-xlib.c: Put display/screen here, instead of in 
+	the main gdk-pixbuf library as it was in 1.0; since the io-xpm 
+	loader doesn't use these variables anymore it should be OK
+
+2000-09-26  Federico Mena Quintero  <federico@helixcode.com>
+
+	* gdk-pixbuf/gdk-pixbuf-xlib-drawable.c
+	(gdk_pixbuf_xlib_get_from_drawable): Do not use
+	gdk_screen_{width,height}().  Thanks to John Harper for pointing
+	this out.
+
+2000-08-26  Federico Mena Quintero  <federico@helixcode.com>
+
+	* gdk-pixbuf/gdk-pixbuf-xlibrgb.c: Added API reference docs.
+
+2000-08-25  Federico Mena Quintero  <federico@helixcode.com>
+
+	* gdk-pixbuf/gdk-pixbuf-xlib-drawable.c (handle_x_error): Return
+	0.
+	(xlib_window_is_viewable): Return FALSE in the last case.
+
+	* gdk-pixbuf/gdk-pixbuf-xlib-render.c: Updated the inline docs.
+
+	* gdk-pixbuf/gdk-pixbuf-xlib.c: Added API docs.
+
+2000-08-25  John Harper  <john@dcs.warwick.ac.uk>
+
+	Work to create an Xlib version of gdk-pixbuf (with the Xlib
+	port of GdkRGB for rendering):
+
+	* configure.in: check for X libraries, set and substitute
+	GDK_PIXBUF_XLIB_{LIBDIR,INCLUDEDIR,LIBS} variables
+
+	* gdk_pixbuf_xlibConf.sh.in: new file -- gnome-config details
+	for the gdk-pixbuf-xlib library
+	* Makefile.am: build and install gdk_pixbuf_xlibConf.sh
+
+	* gdk-pixbuf/gdk-pixbuf-xlib-render.c,
+	gdk-pixbuf/gdk-pixbuf-xlib.c, gdk-pixbuf/gdk-pixbuf-xlib.h,
+	gdk-pixbuf/gdk-pixbuf-xlib-private.h,
+	gdk-pixbuf/gdk-pixbuf-xlib-drawable.c: new files, ported the
+	GDK dependent parts of gdk-pixbuf to use Xlib. Functions that
+	were called gdk_pixbuf_FOO are now gdk_pixbuf_xlib_FOO
+
+	* gdk-pixbuf/gdk-pixbuf-xlibrgb.c,
+	gdk-pixbuf/gdk-pixbuf-xlibrgb.h: added Chris Blizzard's Xlib
+	port of GdkRGB (from Mozilla CVS)
+
+	* gdk-pixbuf/Makefile.am: build a library libgdk_pixbuf_xlib.la
+	including the non-GDK dependent objects from libgdk_pixbuf.la
+	plus the Xlib ports and xlibrgb
diff --git a/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib-2.0.pc.in b/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib-2.0.pc.in
new file mode 100644
index 0000000000..197c03c6e5
--- /dev/null
+++ b/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib-2.0.pc.in
@@ -0,0 +1,11 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: GdkPixbufXlib
+Description: Image loading and scaling for Xlib
+Version: @VERSION@
+Requires: gobject-2.0,gmodule-2.0,gdk-pixbuf-2.0
+Libs: -L${libdir} -lgdk_pixbuf_xlib-1.3
+Cflags: -I${includedir}
diff --git a/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib-drawable.c b/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib-drawable.c
new file mode 100644
index 0000000000..9e007bdb49
--- /dev/null
+++ b/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib-drawable.c
@@ -0,0 +1,1335 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/* GdkPixbuf library - convert X drawable information to RGB
+ *
+ * Copyright (C) 1999 Michael Zucchi
+ *
+ * Authors: Michael Zucchi <zucchi@zedzone.mmc.com.au>
+ *          Cody Russell <bratsche@dfw.net>
+ * 	    Federico Mena-Quintero <federico@gimp.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+/* Ported to Xlib by John Harper <john@dcs.warwick.ac.uk> */
+
+
+#include <config.h>
+#include <stdio.h>
+#include <string.h>
+#include <gdk-pixbuf/gdk-pixbuf-private.h>
+#include "gdk-pixbuf-xlib-private.h"
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+
+#if (G_BYTE_ORDER == G_LITTLE_ENDIAN)
+#define LITTLE
+#endif
+#define d(x)
+
+
+
+static guint32 mask_table[] = {
+	0x00000000, 0x00000001, 0x00000003, 0x00000007,
+	0x0000000f, 0x0000001f, 0x0000003f, 0x0000007f,
+	0x000000ff, 0x000001ff, 0x000003ff, 0x000007ff,
+	0x00000fff, 0x00001fff, 0x00003fff, 0x00007fff,
+	0x0000ffff, 0x0001ffff, 0x0003ffff, 0x0007ffff,
+	0x000fffff, 0x001fffff, 0x003fffff, 0x007fffff,
+	0x00ffffff, 0x01ffffff, 0x03ffffff, 0x07ffffff,
+	0x0fffffff, 0x1fffffff, 0x3fffffff, 0x7fffffff,
+	0xffffffff
+};
+
+
+/* color handling */
+
+typedef struct xlib_colormap_struct xlib_colormap;
+struct xlib_colormap_struct {
+	int size;
+	XColor *colors;
+	Visual *visual;
+	Colormap colormap;
+};
+
+static xlib_colormap *
+xlib_get_colormap (Colormap id, Visual *visual)
+{
+	int i;
+	xlib_colormap *xc = g_new (xlib_colormap, 1);
+
+	xc->size = visual->map_entries;
+	xc->colors = g_new (XColor, xc->size);
+	xc->visual = visual;
+	xc->colormap = id;
+
+	for (i = 0; i < xc->size; i++) {
+		xc->colors[i].pixel = i;
+		xc->colors[i].flags = DoRed | DoGreen | DoBlue;
+	}
+
+	XQueryColors (gdk_pixbuf_dpy, xc->colormap, xc->colors, xc->size);
+
+	return xc;
+}
+
+static void
+xlib_colormap_free (xlib_colormap *xc)
+{
+	g_free (xc->colors);
+	g_free (xc);
+}
+
+/* from gdkvisual.c */
+static void
+visual_decompose_mask (gulong  mask,
+		       gint   *shift,
+		       gint   *prec)
+{
+	*shift = 0;
+	*prec = 0;
+
+	while (!(mask & 0x1)) {
+		(*shift)++;
+		mask >>= 1;
+	}
+
+	while (mask & 0x1) {
+		(*prec)++;
+		mask >>= 1;
+	}
+}
+
+static gboolean x_error;
+
+static int
+handle_x_error (Display *dpy, XErrorEvent *ev)
+{
+	x_error = TRUE;
+	return 0;
+}
+
+static gboolean
+drawable_is_pixmap (Drawable d)
+{
+	/* copied from Imlib */
+
+	XErrorHandler errh;
+	XWindowAttributes wa;
+	gboolean is_pixmap;
+
+	errh = XSetErrorHandler (handle_x_error);
+	x_error = FALSE;
+	XGetWindowAttributes (gdk_pixbuf_dpy, d, &wa);
+	XSync (gdk_pixbuf_dpy, False);
+	is_pixmap = x_error;
+	XSetErrorHandler (errh);
+
+	return is_pixmap;
+}
+
+
+
+/*
+  convert 1 bits-pixel data
+  no alpha
+*/
+static void
+rgb1 (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap)
+{
+	int xx, yy;
+	int width, height;
+	int bpl;
+	guint8 *s;
+	register guint8 data;
+	guint8 *o;
+	guint8 *srow = image->data, *orow = pixels;
+
+	d (printf ("1 bits/pixel\n"));
+
+	/* convert upto 8 pixels/time */
+	/* its probably not worth trying to make this run very fast, who uses
+	   1 bit displays anymore? */
+	width = image->width;
+	height = image->height;
+	bpl = image->bytes_per_line;
+
+	for (yy = 0; yy < height; yy++) {
+		s = srow;
+		o = orow;
+
+		for (xx = 0; xx < width; xx ++) {
+			data = srow[xx >> 3] >> (7 - (xx & 7)) & 1;
+			*o++ = colormap->colors[data].red;
+			*o++ = colormap->colors[data].green;
+			*o++ = colormap->colors[data].blue;
+		}
+		srow += bpl;
+		orow += rowstride;
+	}
+}
+
+/*
+  convert 1 bits/pixel data
+  with alpha
+*/
+static void
+rgb1a (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap)
+{
+	int xx, yy;
+	int width, height;
+	int bpl;
+	guint8 *s;
+	register guint8 data;
+	guint8 *o;
+	guint8 *srow = image->data, *orow = pixels;
+	guint32 remap[2];
+
+	d (printf ("1 bits/pixel\n"));
+
+	/* convert upto 8 pixels/time */
+	/* its probably not worth trying to make this run very fast, who uses
+	   1 bit displays anymore? */
+	width = image->width;
+	height = image->height;
+	bpl = image->bytes_per_line;
+
+	for (xx = 0; xx < 2; xx++) {
+#ifdef LITTLE
+		remap[xx] = 0xff000000
+			| colormap->colors[xx].blue << 16
+			| colormap->colors[xx].green << 8
+			| colormap->colors[xx].red;
+#else
+		remap[xx] = 0xff
+			| colormap->colors[xx].red << 24
+			| colormap->colors[xx].green << 16
+			| colormap->colors[xx].blue << 8;
+#endif
+	}
+
+	for (yy = 0; yy < height; yy++) {
+		s = srow;
+		o = orow;
+
+		for (xx = 0; xx < width; xx ++) {
+			data = srow[xx >> 3] >> (7 - (xx & 7)) & 1;
+			*o++ = remap[data];
+		}
+		srow += bpl;
+		orow += rowstride;
+	}
+}
+
+/*
+  convert 8 bits/pixel data
+  no alpha
+*/
+static void
+rgb8 (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap)
+{
+	int xx, yy;
+	int width, height;
+	int bpl;
+	guint32 mask;
+	register guint32 data;
+	guint8 *srow = image->data, *orow = pixels;
+	register guint8 *s;
+	register guint8 *o;
+
+	width = image->width;
+	height = image->height;
+	bpl = image->bytes_per_line;
+
+	d (printf ("8 bit, no alpha output\n"));
+
+	mask = mask_table[image->depth];
+
+	for (yy = 0; yy < height; yy++) {
+		s = srow;
+		o = orow;
+		for (xx = 0; xx < width; xx++) {
+			data = *s++ & mask;
+			*o++ = colormap->colors[data].red;
+			*o++ = colormap->colors[data].green;
+			*o++ = colormap->colors[data].blue;
+		}
+		srow += bpl;
+		orow += rowstride;
+	}
+}
+
+/*
+  convert 8 bits/pixel data
+  with alpha
+*/
+static void
+rgb8a (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap)
+{
+	int xx, yy;
+	int width, height;
+	int bpl;
+	guint32 mask;
+	register guint32 data;
+	guint32 remap[256];
+	register guint8 *s;	/* read 2 pixels at once */
+	register guint32 *o;
+	guint8 *srow = image->data, *orow = pixels;
+
+	width = image->width;
+	height = image->height;
+	bpl = image->bytes_per_line;
+
+	d (printf ("8 bit, with alpha output\n"));
+
+	mask = mask_table[image->depth];
+
+	for (xx = 0; xx < colormap->size; xx++) {
+#ifdef LITTLE
+		remap[xx] = 0xff000000
+			| colormap->colors[xx].blue << 16
+			| colormap->colors[xx].green << 8
+			| colormap->colors[xx].red;
+#else
+		remap[xx] = 0xff
+			| colormap->colors[xx].red << 24
+			| colormap->colors[xx].green << 16
+			| colormap->colors[xx].blue << 8;
+#endif
+	}
+
+	for (yy = 0; yy < height; yy++) {
+		s = srow;
+		o = (guint32 *) orow;
+		for (xx = 0; xx < width; xx ++) {
+			data = *s++ & mask;
+			*o++ = remap[data];
+		}
+		srow += bpl;
+		orow += rowstride;
+	}
+}
+
+/*
+  convert 16 bits/pixel data
+  no alpha
+  data in lsb format
+*/
+static void
+rgb565lsb (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap)
+{
+	int xx, yy;
+	int width, height;
+	int bpl;
+
+#ifdef LITTLE
+	register guint32 *s;	/* read 2 pixels at once */
+#else
+	register guint8 *s;	/* read 2 pixels at once */
+#endif
+	register guint16 *o;
+	guint8 *srow = image->data, *orow = pixels;
+
+	width = image->width;
+	height = image->height;
+	bpl = image->bytes_per_line;
+
+	for (yy = 0; yy < height; yy++) {
+#ifdef LITTLE
+		s = (guint32 *) srow;
+#else
+		s = srow;
+#endif
+		o = (guint16 *) orow;
+		for (xx = 1; xx < width; xx += 2) {
+			register guint32 data;
+#ifdef LITTLE
+			data = *s++;
+			*o++ = (data & 0xf800) >> 8 | (data & 0xe000) >> 13
+				| (data & 0x7e0) << 5 | (data & 0x600) >> 1;
+			*o++ = (data & 0x1f) << 3 | (data & 0x1c) >> 2
+				| (data & 0xf8000000) >> 16 | (data & 0xe0000000) >> 21;
+			*o++ = (data & 0x7e00000) >> 19 | (data & 0x6000000) >> 25
+				| (data & 0x1f0000) >> 5 | (data & 0x1c0000) >> 10;
+#else
+			/* swap endianness first */
+			data = s[0] | s[1] << 8 | s[2] << 16 | s[3] << 24;
+			s += 4;
+			*o++ = (data & 0xf800) | (data & 0xe000) >> 5
+				| (data & 0x7e0) >> 3 | (data & 0x600) >> 9;
+			*o++ = (data & 0x1f) << 11 | (data & 0x1c) << 6
+				| (data & 0xf8000000) >> 24 | (data & 0xe0000000) >> 29;
+			*o++ = (data & 0x7e00000) >> 11 | (data & 0x6000000) >> 17
+				| (data & 0x1f0000) >> 13 | (data & 0x1c0000) >> 18;
+#endif
+		}
+		/* check for last remaining pixel */
+		if (width & 1) {
+			register guint16 data;
+#ifdef LITTLE
+			data = *((short *) s);
+#else
+			data = *((short *) s);
+			data = ((data >> 8) & 0xff) | ((data & 0xff) << 8);
+#endif
+			((char *) o)[0] = ((data >> 8) & 0xf8) | ((data >> 13) & 0x7);
+			((char *) o)[1] = ((data >> 3) & 0xfc) | ((data >> 9) & 0x3);
+			((char *) o)[2] = ((data << 3) & 0xf8) | ((data >> 2) & 0x7);
+		}
+		srow += bpl;
+		orow += rowstride;
+	}
+}
+
+/*
+  convert 16 bits/pixel data
+  no alpha
+  data in msb format
+*/
+static void
+rgb565msb (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap)
+{
+	int xx, yy;
+	int width, height;
+	int bpl;
+
+#ifdef LITTLE
+	register guint8 *s;	/* need to swap data order */
+#else
+	register guint32 *s;	/* read 2 pixels at once */
+#endif
+	register guint16 *o;
+	guint8 *srow = image->data, *orow = pixels;
+
+	width = image->width;
+	height = image->height;
+	bpl = image->bytes_per_line;
+
+	for (yy = 0; yy < height; yy++) {
+#ifdef LITTLE
+		s = srow;
+#else
+		s = (guint32 *) srow;
+#endif
+		o = (guint16 *) orow;
+		for (xx = 1; xx < width; xx += 2) {
+			register guint32 data;
+#ifdef LITTLE
+			/* swap endianness first */
+			data = s[0] | s[1] << 8 | s[2] << 16 | s[3] << 24;
+			s += 4;
+			*o++ = (data & 0xf800) >> 8 | (data & 0xe000) >> 13
+				| (data & 0x7e0) << 5 | (data & 0x600) >> 1;
+			*o++ = (data & 0x1f) << 3 | (data & 0x1c) >> 2
+				| (data & 0xf8000000) >> 16 | (data & 0xe0000000) >> 21;
+			*o++ = (data & 0x7e00000) >> 19 | (data & 0x6000000) >> 25
+				| (data & 0x1f0000) >> 5 | (data & 0x1c0000) >> 10;
+#else
+			data = *s++;
+			*o++ = (data & 0xf800) | (data & 0xe000) >> 5
+				| (data & 0x7e0) >> 3 | (data & 0x600) >> 9;
+			*o++ = (data & 0x1f) << 11 | (data & 0x1c) << 6
+				| (data & 0xf8000000) >> 24 | (data & 0xe0000000) >> 29;
+			*o++ = (data & 0x7e00000) >> 11 | (data & 0x6000000) >> 17
+				| (data & 0x1f0000) >> 13 | (data & 0x1c0000) >> 18;
+#endif
+		}
+		/* check for last remaining pixel */
+		if (width & 1) {
+			register guint16 data;
+#ifdef LITTLE
+			data = *((short *) s);
+			data = ((data >> 8) & 0xff) | ((data & 0xff) << 8);
+#else
+			data = *((short *) s);
+#endif
+			((char *) o)[0] = ((data >> 8) & 0xf8) | ((data >> 13) & 0x7);
+			((char *) o)[1] = ((data >> 3) & 0xfc) | ((data >> 9) & 0x3);
+			((char *) o)[2] = ((data << 3) & 0xf8) | ((data >> 2) & 0x7);
+		}
+		srow += bpl;
+		orow += rowstride;
+	}
+}
+
+/*
+  convert 16 bits/pixel data
+  with alpha
+  data in lsb format
+*/
+static void
+rgb565alsb (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap)
+{
+	int xx, yy;
+	int width, height;
+	int bpl;
+
+#ifdef LITTLE
+	register guint16 *s;	/* read 1 pixels at once */
+#else
+	register guint8 *s;
+#endif
+	register guint32 *o;
+
+	guint8 *srow = image->data, *orow = pixels;
+
+	width = image->width;
+	height = image->height;
+	bpl = image->bytes_per_line;
+
+	for (yy = 0; yy < height; yy++) {
+#ifdef LITTLE
+		s = (guint16 *) srow;
+#else
+		s = (guint8 *) srow;
+#endif
+		o = (guint32 *) orow;
+		for (xx = 0; xx < width; xx ++) {
+			register guint32 data;
+			/*  rrrrrggg gggbbbbb -> rrrrrRRR ggggggGG bbbbbBBB aaaaaaaa */
+			/*  little endian: aaaaaaaa bbbbbBBB ggggggGG rrrrrRRR */
+#ifdef LITTLE
+			data = *s++;
+			*o++ = (data & 0xf800) >> 8 | (data & 0xe000) >> 13
+				| (data & 0x7e0) << 5 | (data & 0x600) >> 1
+				| (data & 0x1f) << 19 | (data & 0x1c) << 14
+				| 0xff000000;
+#else
+			/* swap endianness first */
+			data = s[0] | s[1] << 8;
+			s += 2;
+			*o++ = (data & 0xf800) << 16 | (data & 0xe000) << 11
+				| (data & 0x7e0) << 13 | (data & 0x600) << 7
+				| (data & 0x1f) << 11 | (data & 0x1c) << 6
+				| 0xff;
+#endif
+		}
+		srow += bpl;
+		orow += rowstride;
+	}
+}
+
+/*
+  convert 16 bits/pixel data
+  with alpha
+  data in msb format
+*/
+static void
+rgb565amsb (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap)
+{
+	int xx, yy;
+	int width, height;
+	int bpl;
+
+#ifdef LITTLE
+	register guint8 *s;
+#else
+	register guint16 *s;	/* read 1 pixels at once */
+#endif
+	register guint32 *o;
+
+	guint8 *srow = image->data, *orow = pixels;
+
+	width = image->width;
+	height = image->height;
+	bpl = image->bytes_per_line;
+
+	for (yy = 0; yy < height; yy++) {
+		s = srow;
+		o = (guint32 *) orow;
+		for (xx = 0; xx < width; xx ++) {
+			register guint32 data;
+			/*  rrrrrggg gggbbbbb -> rrrrrRRR gggggg00 bbbbbBBB aaaaaaaa */
+			/*  little endian: aaaaaaaa bbbbbBBB gggggg00 rrrrrRRR */
+#ifdef LITTLE
+			/* swap endianness first */
+			data = s[0] | s[1] << 8;
+			s += 2;
+			*o++ = (data & 0xf800) >> 8 | (data & 0xe000) >> 13
+				| (data & 0x7e0) << 5 | (data & 0x600) >> 1
+				| (data & 0x1f) << 19 | (data & 0x1c) << 14
+				| 0xff000000;
+#else
+			data = *s++;
+			*o++ = (data & 0xf800) << 16 | (data & 0xe000) << 11
+				| (data & 0x7e0) << 13 | (data & 0x600) << 7
+				| (data & 0x1f) << 11 | (data & 0x1c) << 6
+				| 0xff;
+#endif
+		}
+		srow += bpl;
+		orow += rowstride;
+	}
+}
+
+/*
+  convert 15 bits/pixel data
+  no alpha
+  data in lsb format
+*/
+static void
+rgb555lsb (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap)
+{
+	int xx, yy;
+	int width, height;
+	int bpl;
+
+#ifdef LITTLE
+	register guint32 *s;	/* read 2 pixels at once */
+#else
+	register guint8 *s;	/* read 2 pixels at once */
+#endif
+	register guint16 *o;
+	guint8 *srow = image->data, *orow = pixels;
+
+	width = image->width;
+	height = image->height;
+	bpl = image->bytes_per_line;
+
+	for (yy = 0; yy < height; yy++) {
+#ifdef LITTLE
+		s = (guint32 *) srow;
+#else
+		s = srow;
+#endif
+		o = (guint16 *) orow;
+		for (xx = 1; xx < width; xx += 2) {
+			register guint32 data;
+#ifdef LITTLE
+			data = *s++;
+			*o++ = (data & 0x7c00) >> 7 | (data & 0x7000) >> 12
+				| (data & 0x3e0) << 6 | (data & 0x380) << 1;
+			*o++ = (data & 0x1f) << 3 | (data & 0x1c) >> 2
+				| (data & 0x7c000000) >> 15 | (data & 0x70000000) >> 20;
+			*o++ = (data & 0x3e00000) >> 18 | (data & 0x3800000) >> 23
+				| (data & 0x1f0000) >> 5 | (data & 0x1c0000) >> 10;
+#else
+			/* swap endianness first */
+			data = s[0] | s[1] << 8 | s[2] << 16 | s[3] << 24;
+			s += 4;
+			*o++ = (data & 0x7c00) << 1 | (data & 0x7000) >> 4
+				| (data & 0x3e0) >> 2 | (data & 0x380) >> 7;
+			*o++ = (data & 0x1f) << 11 | (data & 0x1c) << 6
+				| (data & 0x7c000000) >> 23 | (data & 0x70000000) >> 28;
+			*o++ = (data & 0x3e00000) >> 10 | (data & 0x3800000) >> 15
+				| (data & 0x1f0000) >> 13 | (data & 0x1c0000) >> 18;
+#endif
+		}
+		/* check for last remaining pixel */
+		if (width & 1) {
+			register guint16 data;
+#ifdef LITTLE
+			data = *((short *) s);
+#else
+			data = *((short *) s);
+			data = ((data >> 8) & 0xff) | ((data & 0xff) << 8);
+#endif
+			((char *) o)[0] = (data & 0x7c00) >> 7 | (data & 0x7000) >> 12;
+			((char *) o)[1] = (data & 0x3e0) >> 2 | (data & 0x380) >> 7;
+			((char *) o)[2] = (data & 0x1f) << 3 | (data & 0x1c) >> 2;
+		}
+		srow += bpl;
+		orow += rowstride;
+	}
+}
+
+/*
+  convert 15 bits/pixel data
+  no alpha
+  data in msb format
+*/
+static void
+rgb555msb (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap)
+{
+	int xx, yy;
+	int width, height;
+	int bpl;
+
+#ifdef LITTLE
+	register guint8 *s;	/* read 2 pixels at once */
+#else
+	register guint32 *s;	/* read 2 pixels at once */
+#endif
+	register guint16 *o;
+	guint8 *srow = image->data, *orow = pixels;
+
+	width = image->width;
+	height = image->height;
+	bpl = image->bytes_per_line;
+
+	for (yy = 0; yy < height; yy++) {
+		s = srow;
+		o = (guint16 *) orow;
+		for (xx = 1; xx < width; xx += 2) {
+			register guint32 data;
+#ifdef LITTLE
+			/* swap endianness first */
+			data = s[0] | s[1] << 8 | s[2] << 16 | s[3] << 24;
+			s += 4;
+			*o++ = (data & 0x7c00) >> 7 | (data & 0x7000) >> 12
+				| (data & 0x3e0) << 6 | (data & 0x380) << 1;
+			*o++ = (data & 0x1f) << 3 | (data & 0x1c) >> 2
+				| (data & 0x7c000000) >> 15 | (data & 0x70000000) >> 20;
+			*o++ = (data & 0x3e00000) >> 18 | (data & 0x3800000) >> 23
+				| (data & 0x1f0000) >> 5 | (data & 0x1c0000) >> 10;
+#else
+			data = *s++;
+			*o++ = (data & 0x7c00) << 1 | (data & 0x7000) >> 4
+				| (data & 0x3e0) >> 2 | (data & 0x380) >> 7;
+			*o++ = (data & 0x1f) << 11 | (data & 0x1c) << 6
+				| (data & 0x7c000000) >> 23 | (data & 0x70000000) >> 28;
+			*o++ = (data & 0x3e00000) >> 10 | (data & 0x3800000) >> 15
+				| (data & 0x1f0000) >> 13 | (data & 0x1c0000) >> 18;
+#endif
+		}
+		/* check for last remaining pixel */
+		if (width & 1) {
+			register guint16 data;
+#ifdef LITTLE
+			data = *((short *) s);
+			data = ((data >> 8) & 0xff) | ((data & 0xff) << 8);
+#else
+			data = *((short *) s);
+#endif
+			((char *) o)[0] = (data & 0x7c00) >> 7 | (data & 0x7000) >> 12;
+			((char *) o)[1] = (data & 0x3e0) >> 2 | (data & 0x380) >> 7;
+			((char *) o)[2] = (data & 0x1f) << 3 | (data & 0x1c) >> 2;
+		}
+		srow += bpl;
+		orow += rowstride;
+	}
+}
+
+/*
+  convert 15 bits/pixel data
+  with alpha
+  data in lsb format
+*/
+static void
+rgb555alsb (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap)
+{
+	int xx, yy;
+	int width, height;
+	int bpl;
+
+#ifdef LITTLE
+	register guint16 *s;	/* read 1 pixels at once */
+#else
+	register guint8 *s;
+#endif
+	register guint32 *o;
+
+	guint8 *srow = image->data, *orow = pixels;
+
+	width = image->width;
+	height = image->height;
+	bpl = image->bytes_per_line;
+
+	for (yy = 0; yy < height; yy++) {
+#ifdef LITTLE
+		s = (guint16 *) srow;
+#else
+		s = srow;
+#endif
+		o = (guint32 *) orow;
+		for (xx = 0; xx < width; xx++) {
+			register guint32 data;
+			/*  rrrrrggg gggbbbbb -> rrrrrRRR gggggGGG bbbbbBBB aaaaaaaa */
+			/*  little endian: aaaaaaaa bbbbbBBB gggggGGG rrrrrRRR */
+#ifdef LITTLE
+			data = *s++;
+			*o++ = (data & 0x7c00) >> 7 | (data & 0x7000) >> 12
+				| (data & 0x3e0) << 6 | (data & 0x380) << 1
+				| (data & 0x1f) << 19 | (data & 0x1c) << 14
+				| 0xff000000;
+#else
+			/* swap endianness first */
+			data = s[0] | s[1] << 8;
+			s += 2;
+			*o++ = (data & 0x7c00) << 17 | (data & 0x7000) << 12
+				| (data & 0x3e0) << 14 | (data & 0x380) << 9
+				| (data & 0x1f) << 11 | (data & 0x1c) << 6
+				| 0xff;
+#endif
+		}
+		srow += bpl;
+		orow += rowstride;
+	}
+}
+
+/*
+  convert 15 bits/pixel data
+  with alpha
+  data in msb format
+*/
+static void
+rgb555amsb (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap)
+{
+	int xx, yy;
+	int width, height;
+	int bpl;
+
+#ifdef LITTLE
+	register guint16 *s;	/* read 1 pixels at once */
+#else
+	register guint8 *s;
+#endif
+	register guint32 *o;
+
+	guint8 *srow = image->data, *orow = pixels;
+
+	width = image->width;
+	height = image->height;
+	bpl = image->bytes_per_line;
+
+	for (yy = 0; yy < height; yy++) {
+#ifdef LITTLE
+		s = (guint16 *) srow;
+#else
+		s = srow;
+#endif
+		o = (guint32 *) orow;
+		for (xx = 0; xx < width; xx++) {
+			register guint32 data;
+			/*  rrrrrggg gggbbbbb -> rrrrrRRR gggggGGG bbbbbBBB aaaaaaaa */
+			/*  little endian: aaaaaaaa bbbbbBBB gggggGGG rrrrrRRR */
+#ifdef LITTLE
+			/* swap endianness first */
+			data = s[0] | s[1] << 8;
+			s += 2;
+			*o++ = (data & 0x7c00) >> 7 | (data & 0x7000) >> 12
+				| (data & 0x3e0) << 6 | (data & 0x380) << 1
+				| (data & 0x1f) << 19 | (data & 0x1c) << 14
+				| 0xff000000;
+#else
+			data = *s++;
+			*o++ = (data & 0x7c00) << 17 | (data & 0x7000) << 12
+				| (data & 0x3e0) << 14 | (data & 0x380) << 9
+				| (data & 0x1f) << 11 | (data & 0x1c) << 6
+				| 0xff;
+#endif
+		}
+		srow += bpl;
+		orow += rowstride;
+	}
+}
+
+
+static void
+rgb888alsb (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap)
+{
+	int xx, yy;
+	int width, height;
+	int bpl;
+
+	guint8 *s;	/* for byte order swapping */
+	guint8 *o;
+	guint8 *srow = image->data, *orow = pixels;
+
+	width = image->width;
+	height = image->height;
+	bpl = image->bytes_per_line;
+
+	d (printf ("32 bits/pixel with alpha\n"));
+
+	/* lsb data */
+	for (yy = 0; yy < height; yy++) {
+		s = srow;
+		o = orow;
+		for (xx = 0; xx < width; xx++) {
+			*o++ = s[2];
+			*o++ = s[1];
+			*o++ = s[0];
+			*o++ = 0xff;
+			s += 4;
+		}
+		srow += bpl;
+		orow += rowstride;
+	}
+}
+
+static void
+rgb888lsb (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap)
+{
+	int xx, yy;
+	int width, height;
+	int bpl;
+
+	guint8 *srow = image->data, *orow = pixels;
+	guint8 *o, *s;
+
+	width = image->width;
+	height = image->height;
+	bpl = image->bytes_per_line;
+
+	d (printf ("32 bit, lsb, no alpha\n"));
+
+	for (yy = 0; yy < height; yy++) {
+		s = srow;
+		o = orow;
+		for (xx = 0; xx < width; xx++) {
+			*o++ = s[2];
+			*o++ = s[1];
+			*o++ = s[0];
+			s += 4;
+		}
+		srow += bpl;
+		orow += rowstride;
+	}
+}
+
+static void
+rgb888amsb (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap)
+{
+	int xx, yy;
+	int width, height;
+	int bpl;
+
+	guint8 *srow = image->data, *orow = pixels;
+#ifdef LITTLE
+	guint32 *o;
+	guint32 *s;
+#else
+	guint8 *s;	/* for byte order swapping */
+	guint8 *o;
+#endif
+
+	d (printf ("32 bit, msb, with alpha\n"));
+
+	width = image->width;
+	height = image->height;
+	bpl = image->bytes_per_line;
+
+	/* msb data */
+	for (yy = 0; yy < height; yy++) {
+#ifdef LITTLE
+		s = (guint32 *) srow;
+		o = (guint32 *) orow;
+#else
+		s = srow;
+		o = orow;
+#endif
+		for (xx = 0; xx < width; xx++) {
+#ifdef LITTLE
+			*o++ = s[1];
+			*o++ = s[2];
+			*o++ = s[3];
+			*o++ = 0xff;
+			s += 4;
+#else
+			*o++ = (*s << 8) | 0xff; /* untested */
+			s++;
+#endif
+		}
+		srow += bpl;
+		orow += rowstride;
+	}
+}
+
+static void
+rgb888msb (XImage *image, guchar *pixels, int rowstride, xlib_colormap *colormap)
+{
+	int xx, yy;
+	int width, height;
+	int bpl;
+
+	guint8 *srow = image->data, *orow = pixels;
+	guint8 *s;
+	guint8 *o;
+
+	d (printf ("32 bit, msb, no alpha\n"));
+
+	width = image->width;
+	height = image->height;
+	bpl = image->bytes_per_line;
+
+	for (yy = 0; yy < height; yy++) {
+		s = srow;
+		o = orow;
+		for (xx = 0; xx < width; xx++) {
+			*o++ = s[1];
+			*o++ = s[2];
+			*o++ = s[3];
+			s += 4;
+		}
+		srow += bpl;
+		orow += rowstride;
+	}
+}
+
+/*
+  This should work correctly with any display/any endianness, but will probably
+  run quite slow
+*/
+static void
+convert_real_slow (XImage *image, guchar *pixels, int rowstride, xlib_colormap *cmap, int alpha)
+{
+	int xx, yy;
+	int width, height;
+	int bpl;
+	guint8 *srow = image->data, *orow = pixels;
+	guint8 *s;
+	guint8 *o;
+	guint32 pixel;
+	Visual *v;
+	guint8 component;
+	int i;
+	int red_shift, red_prec, green_shift, green_prec, blue_shift, blue_prec;
+
+	width = image->width;
+	height = image->height;
+	bpl = image->bytes_per_line;
+	v = cmap->visual;
+
+	visual_decompose_mask (v->red_mask, &red_shift, &red_prec);
+	visual_decompose_mask (v->green_mask, &green_shift, &green_prec);
+	visual_decompose_mask (v->blue_mask, &blue_shift, &blue_prec);
+
+	d(printf("rgb  mask/shift/prec = %x:%x:%x %d:%d:%d  %d:%d:%d\n",
+		 v->red_mask, v->green_mask, v->blue_mask,
+		 red_shift, green_shift, blue_shift,
+		 red_prec, green_prec, blue_prec));
+
+	for (yy = 0; yy < height; yy++) {
+		s = srow;
+		o = orow;
+		for (xx = 0; xx < width; xx++) {
+			pixel = XGetPixel (image, xx, yy);
+			switch (v->class) {
+				/* I assume this is right for static & greyscale's too? */
+			case StaticGray:
+			case GrayScale:
+			case StaticColor:
+			case PseudoColor:
+				*o++ = cmap->colors[pixel].red;
+				*o++ = cmap->colors[pixel].green;
+				*o++ = cmap->colors[pixel].blue;
+				break;
+			case TrueColor:
+				/* This is odd because it must sometimes shift left (otherwise
+				   I'd just shift >> (*_shift - 8 + *_prec + <0-7>). This logic
+				   should work for all bit sizes/shifts/etc. */
+				component = 0;
+				for (i = 24; i < 32; i += red_prec)
+					component |= ((pixel & v->red_mask) << (32 - red_shift - red_prec)) >> i;
+				*o++ = component;
+				component = 0;
+				for (i = 24; i < 32; i += green_prec)
+					component |= ((pixel & v->green_mask) << (32 - green_shift - green_prec)) >> i;
+				*o++ = component;
+				component = 0;
+				for (i = 24; i < 32; i += blue_prec)
+					component |= ((pixel & v->blue_mask) << (32 - blue_shift - blue_prec)) >> i;
+				*o++ = component;
+				break;
+			case DirectColor:
+				*o++ = cmap->colors[((pixel & v->red_mask) << (32 - red_shift - red_prec)) >> 24].red;
+				*o++ = cmap->colors[((pixel & v->green_mask) << (32 - green_shift - green_prec)) >> 24].green;
+				*o++ = cmap->colors[((pixel & v->blue_mask) << (32 - blue_shift - blue_prec)) >> 24].blue;
+				break;
+			}
+			if (alpha)
+				*o++ = 0xff;
+		}
+		srow += bpl;
+		orow += rowstride;
+	}
+}
+
+typedef void (* cfunc) (XImage *image, guchar *pixels, int rowstride, xlib_colormap *cmap);
+
+static cfunc convert_map[] = {
+	rgb1,rgb1,rgb1a,rgb1a,
+	rgb8,rgb8,rgb8a,rgb8a,
+	rgb555lsb,rgb555msb,rgb555alsb,rgb555amsb,
+	rgb565lsb,rgb565msb,rgb565alsb,rgb565amsb,
+	rgb888lsb,rgb888msb,rgb888alsb,rgb888amsb
+};
+
+/*
+  perform actual conversion
+
+  If we can, try and use the optimised code versions, but as a default
+  fallback, and always for direct colour, use the generic/slow but complete
+  conversion function.
+*/
+static void
+rgbconvert (XImage *image, guchar *pixels, int rowstride, int alpha, xlib_colormap *cmap)
+{
+	int index = (image->byte_order == MSBFirst) | (alpha != 0) << 1;
+	int bank=5;		/* default fallback converter */
+	Visual *v = cmap->visual;
+
+	d(printf("masks = %x:%x:%x\n", v->red_mask, v->green_mask, v->blue_mask));
+	d(printf("image depth = %d, bpp = %d\n", image->depth, image->bits_per_pixel));
+
+	switch (v->class) {
+				/* I assume this is right for static & greyscale's too? */
+	case StaticGray:
+	case GrayScale:
+	case StaticColor:
+	case PseudoColor:
+		switch (image->bits_per_pixel) {
+		case 1:
+			bank = 0;
+			break;
+		case 8:
+			bank = 1;
+			break;
+		}
+		break;
+	case TrueColor:
+		switch (image->depth) {
+		case 15:
+			if (v->red_mask == 0x7c00 && v->green_mask == 0x3e0 && v->blue_mask == 0x1f
+			    && image->bits_per_pixel == 16)
+				bank = 2;
+			break;
+		case 16:
+			if (v->red_mask == 0xf800 && v->green_mask == 0x7e0 && v->blue_mask == 0x1f
+			    && image->bits_per_pixel == 16)
+				bank = 3;
+			break;
+		case 24:
+		case 32:
+			if (v->red_mask == 0xff0000 && v->green_mask == 0xff00 && v->blue_mask == 0xff
+			    && image->bits_per_pixel == 32)
+				bank = 4;
+			break;
+		}
+		break;
+	case DirectColor:
+		/* always use the slow version */
+		break;
+	}
+
+	d(printf("converting using conversion function in bank %d\n", bank));
+
+	if (bank==5) {
+		convert_real_slow(image, pixels, rowstride, cmap, alpha);
+	} else {
+		index |= bank << 2;
+		(* convert_map[index]) (image, pixels, rowstride, cmap);
+	}
+}
+
+static gboolean
+xlib_window_is_viewable (Window w)
+{
+	XWindowAttributes wa;
+
+	while (w != 0) {
+		Window parent, root, *children;
+		int nchildren;
+
+		XGetWindowAttributes (gdk_pixbuf_dpy, w, &wa);
+		if (wa.map_state != IsViewable)
+			return FALSE;
+
+		if (!XQueryTree (gdk_pixbuf_dpy, w, &root,
+				 &parent, &children, &nchildren))
+			return FALSE;
+
+		if (nchildren > 0)
+			XFree (children);
+
+		if (parent == root)
+			return TRUE;
+
+		w = parent;
+	}
+
+	return FALSE;
+}
+
+static gint
+xlib_window_get_origin (Window w, gint *x, gint *y)
+{
+	Window child;
+	return XTranslateCoordinates (gdk_pixbuf_dpy, w,
+				      RootWindow (gdk_pixbuf_dpy,
+						  gdk_pixbuf_screen),
+				      0, 0, x, y, &child);
+}
+
+/* Exported functions */
+
+/**
+ * gdk_pixbuf_xlib_get_from_drawable:
+ * @dest: Destination pixbuf, or NULL if a new pixbuf should be created.
+ * @src: Source drawable.
+ * @cmap: A colormap if @src is a pixmap.  If it is a window, this argument will
+ * be ignored.
+ * @visual: A visual if @src is a pixmap.  If it is a window, this argument will
+ * be ignored.
+ * @src_x: Source X coordinate within drawable.
+ * @src_y: Source Y coordinate within drawable.
+ * @dest_x: Destination X coordinate in pixbuf, or 0 if @dest is NULL.
+ * @dest_y: Destination Y coordinate in pixbuf, or 0 if @dest is NULL.
+ * @width: Width in pixels of region to get.
+ * @height: Height in pixels of region to get.
+ *
+ * Transfers image data from a Gdk drawable and converts it to an RGB(A)
+ * representation inside a GdkPixbuf.
+ *
+ * If the drawable @src is a pixmap, then a suitable colormap must be specified,
+ * since pixmaps are just blocks of pixel data without an associated colormap.
+ * If the drawable is a window, the @cmap argument will be ignored and the
+ * window's own colormap will be used instead.
+ *
+ * If the specified destination pixbuf @dest is #NULL, then this function will
+ * create an RGB pixbuf with 8 bits per channel and no alpha, with the same size
+ * specified by the @width and @height arguments.  In this case, the @dest_x and
+ * @dest_y arguments must be specified as 0, otherwise the function will return
+ * #NULL.  If the specified destination pixbuf is not NULL and it contains alpha
+ * information, then the filled pixels will be set to full opacity.
+ *
+ * If the specified drawable is a pixmap, then the requested source rectangle
+ * must be completely contained within the pixmap, otherwise the function will
+ * return #NULL.
+ *
+ * If the specified drawable is a window, then it must be viewable, i.e. all of
+ * its ancestors up to the root window must be mapped.  Also, the specified
+ * source rectangle must be completely contained within the window and within
+ * the screen.  If regions of the window are obscured by noninferior windows, the
+ * contents of those regions are undefined.  The contents of regions obscured by
+ * inferior windows of a different depth than that of the source window will also
+ * be undefined.
+ *
+ * Return value: The same pixbuf as @dest if it was non-NULL, or a newly-created
+ * pixbuf with a reference count of 1 if no destination pixbuf was specified; in
+ * the latter case, NULL will be returned if not enough memory could be
+ * allocated for the pixbuf to be created.
+ **/
+GdkPixbuf *
+gdk_pixbuf_xlib_get_from_drawable (GdkPixbuf *dest,
+				   Drawable src,
+				   Colormap cmap, Visual *visual,
+				   int src_x, int src_y,
+				   int dest_x, int dest_y,
+				   int width, int height)
+{
+	int src_width, src_height;
+	XImage *image;
+	int rowstride, bpp, alpha;
+	XWindowAttributes wa;
+	xlib_colormap *x_cmap;
+	gboolean is_pixmap;
+
+	/* General sanity checks */
+
+	g_return_val_if_fail (src != 0, NULL);
+
+	is_pixmap = drawable_is_pixmap (src);
+
+	if (is_pixmap) {
+		g_return_val_if_fail (cmap != 0, NULL);
+		g_return_val_if_fail (visual != NULL, NULL);
+	}
+	else
+		g_return_val_if_fail (xlib_window_is_viewable (src), NULL);
+
+	if (!dest)
+		g_return_val_if_fail (dest_x == 0 && dest_y == 0, NULL);
+	else {
+		g_return_val_if_fail (dest->colorspace == GDK_COLORSPACE_RGB, NULL);
+		g_return_val_if_fail (dest->n_channels == 3
+				      || dest->n_channels == 4, NULL);
+		g_return_val_if_fail (dest->bits_per_sample == 8, NULL);
+	}
+
+	/* Coordinate sanity checks */
+
+	if (!is_pixmap) {
+	    XGetWindowAttributes (gdk_pixbuf_dpy, src, &wa);
+	    src_width = wa.width;
+	    src_height = wa.height;
+	} else {
+	    Window root;
+	    int tx, ty, bwidth, depth;
+	    XGetGeometry (gdk_pixbuf_dpy, src, &root, &tx, &ty,
+			  &src_width, &src_height, &bwidth, &depth);
+	}
+
+	g_return_val_if_fail (src_x >= 0 && src_y >= 0, NULL);
+	g_return_val_if_fail (src_x + width <= src_width
+			      && src_y + height <= src_height, NULL);
+
+	if (dest) {
+		g_return_val_if_fail (dest_x >= 0 && dest_y >= 0, NULL);
+		g_return_val_if_fail (dest_x + width <= dest->width, NULL);
+		g_return_val_if_fail (dest_y + height <= dest->height, NULL);
+	}
+
+	if (!is_pixmap) {
+		int ret;
+		int src_xorigin, src_yorigin;
+		int screen_width, screen_height;
+		int screen_srcx, screen_srcy;
+
+		ret = xlib_window_get_origin (src, &src_xorigin, &src_yorigin);
+		g_return_val_if_fail (ret != FALSE, NULL);
+
+		screen_width = DisplayWidth (gdk_pixbuf_dpy, gdk_pixbuf_screen);
+		screen_height = DisplayHeight (gdk_pixbuf_dpy, gdk_pixbuf_screen);
+
+		screen_srcx = src_xorigin + src_x;
+		screen_srcy = src_yorigin + src_y;
+
+		g_return_val_if_fail (screen_srcx >= 0 && screen_srcy >= 0, NULL);
+		g_return_val_if_fail (screen_srcx + width <= screen_width, NULL);
+		g_return_val_if_fail (screen_srcy + height <= screen_height, NULL);
+	}
+
+	/* Get Image in ZPixmap format (packed bits). */
+	image = XGetImage (gdk_pixbuf_dpy, src, src_x, src_y,
+			   width, height, AllPlanes, ZPixmap);
+	g_return_val_if_fail (image != NULL, NULL);
+
+	/* Create the pixbuf if needed */
+	if (!dest) {
+		dest = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
+				       FALSE, 8, width, height);
+		if (!dest) {
+			XDestroyImage (image);
+			return NULL;
+		}
+	}
+
+	/* Get the colormap if needed */
+	if (!is_pixmap)
+	{
+		cmap = wa.colormap;
+		visual = wa.visual;
+	}
+
+	x_cmap = xlib_get_colormap (cmap, visual);
+
+	alpha = dest->has_alpha;
+	rowstride = dest->rowstride;
+	bpp = alpha ? 4 : 3;
+
+	/* we offset into the image data based on the position we are retrieving from */
+	rgbconvert (image, dest->pixels +
+		    (dest_y * rowstride) + (dest_x * bpp),
+		    rowstride,
+		    alpha,
+		    x_cmap);
+
+	xlib_colormap_free (x_cmap);
+	XDestroyImage (image);
+
+	return dest;
+}
diff --git a/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib-private.h b/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib-private.h
new file mode 100644
index 0000000000..6605be5389
--- /dev/null
+++ b/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib-private.h
@@ -0,0 +1,30 @@
+/* GdkPixbuf library - Xlib header file
+ *
+ * Authors: John Harper <john@dcs.warwick.ac.uk>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef GDK_PIXBUF_XLIB_PRIVATE_H
+#define GDK_PIXBUF_XLIB_PRIVATE_H
+
+#include "gdk-pixbuf-xlib.h"
+#include <X11/Xlib.h>
+
+extern Display *gdk_pixbuf_dpy;
+extern int gdk_pixbuf_screen;
+
+#endif
diff --git a/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib-render.c b/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib-render.c
new file mode 100644
index 0000000000..b6a26ebf33
--- /dev/null
+++ b/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib-render.c
@@ -0,0 +1,398 @@
+/* GdkPixbuf library - Rendering functions
+ *
+ * Copyright (C) 1999 The Free Software Foundation
+ *
+ * Author: Federico Mena-Quintero <federico@gimp.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+/* Trivially ported to Xlib(RGB) by John Harper. */
+
+#include <config.h>
+#include "gdk-pixbuf-private.h"
+#include "gdk-pixbuf-xlib-private.h"
+
+
+
+/**
+ * gdk_pixbuf_xlib_render_threshold_alpha:
+ * @pixbuf: A pixbuf.
+ * @bitmap: Bitmap where the bilevel mask will be painted to.
+ * @src_x: Source X coordinate.
+ * @src_y: source Y coordinate.
+ * @dest_x: Destination X coordinate.
+ * @dest_y: Destination Y coordinate.
+ * @width: Width of region to threshold.
+ * @height: Height of region to threshold.
+ * @alpha_threshold: Opacity values below this will be painted as zero; all
+ * other values will be painted as one.
+ *
+ * Takes the opacity values in a rectangular portion of a pixbuf and thresholds
+ * them to produce a bi-level alpha mask that can be used as a clipping mask for
+ * a drawable.
+ *
+ **/
+void
+gdk_pixbuf_xlib_render_threshold_alpha (GdkPixbuf *pixbuf, Pixmap bitmap,
+					int src_x, int src_y,
+					int dest_x, int dest_y,
+					int width, int height,
+					int alpha_threshold)
+{
+	GC gc;
+	XColor color;
+	int x, y;
+	guchar *p;
+	int start, start_status;
+	int status;
+	XGCValues gcv;
+
+	g_return_if_fail (pixbuf != NULL);
+	g_return_if_fail (pixbuf->colorspace == GDK_COLORSPACE_RGB);
+	g_return_if_fail (pixbuf->n_channels == 3 || pixbuf->n_channels == 4);
+	g_return_if_fail (pixbuf->bits_per_sample == 8);
+
+	g_return_if_fail (bitmap != 0);
+	g_return_if_fail (width >= 0 && height >= 0);
+	g_return_if_fail (src_x >= 0 && src_x + width <= pixbuf->width);
+	g_return_if_fail (src_y >= 0 && src_y + height <= pixbuf->height);
+
+	g_return_if_fail (alpha_threshold >= 0 && alpha_threshold <= 255);
+
+	if (width == 0 || height == 0)
+		return;
+
+	gc = XCreateGC (gdk_pixbuf_dpy, bitmap, 0, &gcv);
+
+	if (!pixbuf->has_alpha) {
+		color.pixel = (alpha_threshold == 255) ? 0 : 1;
+		XSetForeground (gdk_pixbuf_dpy, gc, color.pixel);
+		XFillRectangle (gdk_pixbuf_dpy, bitmap, gc,
+				dest_x, dest_y, width, height);
+		XFreeGC (gdk_pixbuf_dpy, gc);
+		return;
+	}
+
+	color.pixel = 0;
+	XSetForeground (gdk_pixbuf_dpy, gc, color.pixel);
+	XFillRectangle (gdk_pixbuf_dpy, bitmap, gc,
+			dest_x, dest_y, width, height);
+
+	color.pixel = 1;
+	XSetForeground (gdk_pixbuf_dpy, gc, color.pixel);
+
+	for (y = 0; y < height; y++) {
+		p = (pixbuf->pixels + (y + src_y) * pixbuf->rowstride + src_x * pixbuf->n_channels
+		     + pixbuf->n_channels - 1);
+
+		start = 0;
+		start_status = *p < alpha_threshold;
+
+		for (x = 0; x < width; x++) {
+			status = *p < alpha_threshold;
+
+			if (status != start_status) {
+				if (!start_status)
+					XDrawLine (gdk_pixbuf_dpy, bitmap, gc,
+						   start + dest_x, y + dest_y,
+						   x - 1 + dest_x, y + dest_y);
+
+				start = x;
+				start_status = status;
+			}
+
+			p += pixbuf->n_channels;
+		}
+
+		if (!start_status)
+			XDrawLine (gdk_pixbuf_dpy, bitmap, gc,
+				   start + dest_x, y + dest_y,
+				   x - 1 + dest_x, y + dest_y);
+	}
+
+	XFreeGC (gdk_pixbuf_dpy, gc);
+}
+
+
+
+/* Creates a buffer by stripping the alpha channel of a pixbuf */
+static guchar *
+remove_alpha (GdkPixbuf *pixbuf, int x, int y, int width, int height, int *rowstride)
+{
+	guchar *buf;
+	int xx, yy;
+	guchar *src, *dest;
+
+	g_assert (pixbuf->n_channels == 4);
+	g_assert (pixbuf->has_alpha);
+	g_assert (width > 0 && height > 0);
+	g_assert (x >= 0 && x + width <= pixbuf->width);
+	g_assert (y >= 0 && y + height <= pixbuf->height);
+
+	*rowstride = 4 * ((width * 3 + 3) / 4);
+
+	buf = g_new (guchar, *rowstride * height);
+
+	for (yy = 0; yy < height; yy++) {
+		src = pixbuf->pixels + pixbuf->rowstride * (yy + y) + x * pixbuf->n_channels;
+		dest = buf + *rowstride * yy;
+
+		for (xx = 0; xx < width; xx++) {
+			*dest++ = *src++;
+			*dest++ = *src++;
+			*dest++ = *src++;
+			src++;
+		}
+	}
+
+	return buf;
+}
+
+/**
+ * gdk_pixbuf_xlib_render_to_drawable:
+ * @pixbuf: A pixbuf.
+ * @drawable: Destination drawable.
+ * @gc: GC used for rendering.
+ * @src_x: Source X coordinate within pixbuf.
+ * @src_y: Source Y coordinate within pixbuf.
+ * @dest_x: Destination X coordinate within drawable.
+ * @dest_y: Destination Y coordinate within drawable.
+ * @width: Width of region to render, in pixels.
+ * @height: Height of region to render, in pixels.
+ * @dither: Dithering mode for XlibRGB.
+ * @x_dither: X offset for dither.
+ * @y_dither: Y offset for dither.
+ *
+ * Renders a rectangular portion of a pixbuf to a drawable while using the
+ * specified GC.  This is done using XlibRGB, so the specified drawable must
+ * have the XlibRGB visual and colormap.  Note that this function will ignore
+ * the opacity information for images with an alpha channel; the GC must already
+ * have the clipping mask set if you want transparent regions to show through.
+ *
+ * For an explanation of dither offsets, see the XlibRGB documentation.  In
+ * brief, the dither offset is important when re-rendering partial regions of an
+ * image to a rendered version of the full image, or for when the offsets to a
+ * base position change, as in scrolling.  The dither matrix has to be shifted
+ * for consistent visual results.  If you do not have any of these cases, the
+ * dither offsets can be both zero.
+ **/
+void
+gdk_pixbuf_xlib_render_to_drawable (GdkPixbuf *pixbuf,
+				    Drawable drawable, GC gc,
+				    int src_x, int src_y,
+				    int dest_x, int dest_y,
+				    int width, int height,
+				    XlibRgbDither dither,
+				    int x_dither, int y_dither)
+{
+	guchar *buf;
+	int rowstride;
+
+	g_return_if_fail (pixbuf != NULL);
+	g_return_if_fail (pixbuf->colorspace == GDK_COLORSPACE_RGB);
+	g_return_if_fail (pixbuf->n_channels == 3 || pixbuf->n_channels == 4);
+	g_return_if_fail (pixbuf->bits_per_sample == 8);
+
+	g_return_if_fail (drawable != 0);
+	g_return_if_fail (gc != 0);
+
+	g_return_if_fail (width >= 0 && height >= 0);
+	g_return_if_fail (src_x >= 0 && src_x + width <= pixbuf->width);
+	g_return_if_fail (src_y >= 0 && src_y + height <= pixbuf->height);
+
+	if (width == 0 || height == 0)
+		return;
+
+	/* This will have to be modified once we support other image types.
+	 * Also, GdkRGB does not have gdk_draw_rgb_32_image_dithalign(), so we
+	 * have to pack the buffer first.  Sigh.
+	 */
+
+	if (pixbuf->has_alpha)
+		buf = remove_alpha (pixbuf, src_x, src_y, width, height, &rowstride);
+	else {
+		buf = pixbuf->pixels + src_y * pixbuf->rowstride + src_x * 3;
+		rowstride = pixbuf->rowstride;
+	}
+
+	xlib_draw_rgb_image_dithalign (drawable, gc,
+				       dest_x, dest_y,
+				       width, height,
+				       dither,
+				       buf, rowstride,
+				       x_dither, y_dither);
+
+	if (pixbuf->has_alpha)
+		g_free (buf);
+}
+
+
+
+/**
+ * gdk_pixbuf_xlib_render_to_drawable_alpha:
+ * @pixbuf: A pixbuf.
+ * @drawable: Destination drawable.
+ * @src_x: Source X coordinate within pixbuf.
+ * @src_y: Source Y coordinates within pixbuf.
+ * @dest_x: Destination X coordinate within drawable.
+ * @dest_y: Destination Y coordinate within drawable.
+ * @width: Width of region to render, in pixels.
+ * @height: Height of region to render, in pixels.
+ * @alpha_mode: If the image does not have opacity information, this is ignored.
+ * Otherwise, specifies how to handle transparency when rendering.
+ * @alpha_threshold: If the image does have opacity information and @alpha_mode
+ * is GDK_PIXBUF_ALPHA_BILEVEL, specifies the threshold value for opacity
+ * values.
+ * @dither: Dithering mode for XlibRGB.
+ * @x_dither: X offset for dither.
+ * @y_dither: Y offset for dither.
+ *
+ * Renders a rectangular portion of a pixbuf to a drawable.  This is done using
+ * XlibRGB, so the specified drawable must have the XlibRGB visual and colormap.
+ *
+ * When used with #GDK_PIXBUF_ALPHA_BILEVEL, this function has to create a bitmap
+ * out of the thresholded alpha channel of the image and, it has to set this
+ * bitmap as the clipping mask for the GC used for drawing.  This can be a
+ * significant performance penalty depending on the size and the complexity of
+ * the alpha channel of the image.  If performance is crucial, consider handling
+ * the alpha channel yourself (possibly by caching it in your application) and
+ * using gdk_pixbuf_xlib_render_to_drawable() or GdkRGB directly instead.
+ **/
+void
+gdk_pixbuf_xlib_render_to_drawable_alpha (GdkPixbuf *pixbuf, Drawable drawable,
+					  int src_x, int src_y,
+					  int dest_x, int dest_y,
+					  int width, int height,
+					  GdkPixbufAlphaMode alpha_mode,
+					  int alpha_threshold,
+					  XlibRgbDither dither,
+					  int x_dither, int y_dither)
+{
+	Pixmap bitmap = 0;
+	GC gc;
+	XGCValues gcv;
+
+	g_return_if_fail (pixbuf != NULL);
+	g_return_if_fail (pixbuf->colorspace == GDK_COLORSPACE_RGB);
+	g_return_if_fail (pixbuf->n_channels == 3 || pixbuf->n_channels == 4);
+	g_return_if_fail (pixbuf->bits_per_sample == 8);
+
+	g_return_if_fail (drawable != 0);
+	g_return_if_fail (width >= 0 && height >= 0);
+	g_return_if_fail (src_x >= 0 && src_x + width <= pixbuf->width);
+	g_return_if_fail (src_y >= 0 && src_y + height <= pixbuf->height);
+
+	if (width == 0 || height == 0)
+		return;
+
+	gc = XCreateGC (gdk_pixbuf_dpy, drawable, 0, &gcv);
+
+	if (pixbuf->has_alpha) {
+		/* Right now we only support GDK_PIXBUF_ALPHA_BILEVEL, so we
+		 * unconditionally create the clipping mask.
+		 */
+
+		bitmap = XCreatePixmap (gdk_pixbuf_dpy,
+					RootWindow (gdk_pixbuf_dpy,
+						    gdk_pixbuf_screen),
+					width, height, 1);
+		gdk_pixbuf_xlib_render_threshold_alpha (pixbuf, bitmap,
+							src_x, src_y,
+							0, 0,
+							width, height,
+							alpha_threshold);
+
+		XSetClipMask (gdk_pixbuf_dpy, gc, bitmap);
+		XSetClipOrigin (gdk_pixbuf_dpy, gc, dest_x, dest_y);
+	}
+
+	gdk_pixbuf_xlib_render_to_drawable (pixbuf, drawable, gc,
+					    src_x, src_y,
+					    dest_x, dest_y,
+					    width, height,
+					    dither,
+					    x_dither, y_dither);
+
+	if (bitmap)
+	        XFreePixmap (gdk_pixbuf_dpy, bitmap);
+
+	XFreeGC (gdk_pixbuf_dpy, gc);
+}
+
+/**
+ * gdk_pixbuf_xlib_render_pixmap_and_mask:
+ * @pixbuf: A pixbuf.
+ * @pixmap_return: Return value for the created pixmap.
+ * @mask_return: Return value for the created mask.
+ * @alpha_threshold: Threshold value for opacity values.
+ *
+ * Creates a pixmap and a mask bitmap which are returned in the @pixmap_return
+ * and @mask_return arguments, respectively, and renders a pixbuf and its
+ * corresponding tresholded alpha mask to them.  This is merely a convenience
+ * function; applications that need to render pixbufs with dither offsets or to
+ * given drawables should use gdk_pixbuf_xlib_render_to_drawable_alpha() or
+ * gdk_pixbuf_xlib_render_to_drawable(), and
+ * gdk_pixbuf_xlib_render_threshold_alpha().
+ *
+ * If the pixbuf does not have an alpha channel, then *@mask_return will be set
+ * to None.
+ **/
+void
+gdk_pixbuf_xlib_render_pixmap_and_mask (GdkPixbuf *pixbuf,
+					Pixmap *pixmap_return,
+					Pixmap *mask_return,
+					int alpha_threshold)
+{
+        g_return_if_fail (pixbuf != NULL);
+
+	if (pixmap_return) {
+		GC gc;
+		XGCValues gcv;
+
+		*pixmap_return = XCreatePixmap (gdk_pixbuf_dpy,
+						RootWindow (gdk_pixbuf_dpy,
+							    gdk_pixbuf_screen),
+						pixbuf->width,
+						pixbuf->height,
+						xlib_rgb_get_depth ());
+		gc = XCreateGC (gdk_pixbuf_dpy, *pixmap_return, 0, &gcv);
+		gdk_pixbuf_xlib_render_to_drawable (pixbuf, *pixmap_return, gc,
+						    0, 0, 0, 0,
+						    pixbuf->width,
+						    pixbuf->height,
+						    XLIB_RGB_DITHER_NORMAL,
+						    0, 0);
+		XFreeGC (gdk_pixbuf_dpy, gc);
+	}
+
+	if (mask_return) {
+		if (pixbuf->has_alpha) {
+		    *mask_return = XCreatePixmap (gdk_pixbuf_dpy,
+						  RootWindow (gdk_pixbuf_dpy,
+							      gdk_pixbuf_screen),
+						  pixbuf->width,
+						  pixbuf->height, 1);
+		    gdk_pixbuf_xlib_render_threshold_alpha (pixbuf,
+							    *mask_return,
+							    0, 0, 0, 0,
+							    pixbuf->width,
+							    pixbuf->height,
+							    alpha_threshold);
+		} else
+			*mask_return = 0;
+	}
+}
diff --git a/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib.c b/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib.c
new file mode 100644
index 0000000000..340dd31ec4
--- /dev/null
+++ b/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib.c
@@ -0,0 +1,63 @@
+/* GdkPixbuf library - Initialization functions
+ *
+ * Author: John Harper <john@dcs.warwick.ac.uk>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <config.h>
+#include <X11/Xlib.h>
+#include <gdk-pixbuf/gdk-pixbuf-private.h>
+#include "gdk-pixbuf-xlib-private.h"
+
+Display *gdk_pixbuf_dpy = NULL;
+int gdk_pixbuf_screen = -1;
+
+/**
+ * gdk_pixbuf_xlib_init:
+ * @display: X display to use.
+ * @screen_num: Screen number.
+ * 
+ * Initializes the gdk-pixbuf Xlib machinery by calling xlib_rgb_init().  This
+ * function should be called near the beginning of your program, or before using
+ * any of the gdk-pixbuf-xlib functions.
+ **/
+void
+gdk_pixbuf_xlib_init (Display *display, int screen_num)
+{
+    xlib_rgb_init (display, ScreenOfDisplay (display, screen_num));
+    gdk_pixbuf_dpy = display;
+    gdk_pixbuf_screen = screen_num;
+}
+
+/**
+ * gdk_pixbuf_xlib_init_with_depth:
+ * @display: X display to use.
+ * @screen_num: Screen number.
+ * @prefDepth: Preferred depth for XlibRGB.
+ * 
+ * Similar to gdk_pixbuf_xlib_init(), but also lets you specify the preferred
+ * depth for XlibRGB if you do not want it to use the default depth it picks.
+ **/
+void
+gdk_pixbuf_xlib_init_with_depth (Display *display,
+				 int screen_num, int prefDepth)
+{
+    xlib_rgb_init_with_depth (display, ScreenOfDisplay (display, screen_num),
+			      prefDepth);
+    gdk_pixbuf_dpy = display;
+    gdk_pixbuf_screen = screen_num;
+}
diff --git a/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib.h b/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib.h
new file mode 100644
index 0000000000..b19748671f
--- /dev/null
+++ b/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlib.h
@@ -0,0 +1,82 @@
+/* GdkPixbuf library - Xlib header file
+ *
+ * Authors: John Harper <john@dcs.warwick.ac.uk>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef GDK_PIXBUF_XLIB_H
+#define GDK_PIXBUF_XLIB_H
+
+#include <gdk-pixbuf/gdk-pixbuf.h>
+#include <gdk-pixbuf-xlib/gdk-pixbuf-xlibrgb.h>
+#include <X11/Xlib.h>
+
+
+
+/* init */
+
+void gdk_pixbuf_xlib_init (Display *display, int screen_num);
+
+void gdk_pixbuf_xlib_init_with_depth (Display *display, int screen_num,
+				      int prefDepth);
+
+
+
+/* render */
+
+void gdk_pixbuf_xlib_render_threshold_alpha (GdkPixbuf *pixbuf, Pixmap bitmap,
+					     int src_x, int src_y,
+					     int dest_x, int dest_y,
+					     int width, int height,
+					     int alpha_threshold);
+
+void gdk_pixbuf_xlib_render_to_drawable (GdkPixbuf *pixbuf,
+					 Drawable drawable, GC gc,
+					 int src_x, int src_y,
+					 int dest_x, int dest_y,
+					 int width, int height,
+					 XlibRgbDither dither,
+					 int x_dither, int y_dither);
+
+
+void gdk_pixbuf_xlib_render_to_drawable_alpha (GdkPixbuf *pixbuf,
+					       Drawable drawable,
+					       int src_x, int src_y,
+					       int dest_x, int dest_y,
+					       int width, int height,
+					       GdkPixbufAlphaMode alpha_mode,
+					       int alpha_threshold,
+					       XlibRgbDither dither,
+					       int x_dither, int y_dither);
+
+void gdk_pixbuf_xlib_render_pixmap_and_mask (GdkPixbuf *pixbuf,
+					     Pixmap *pixmap_return,
+					     Pixmap *mask_return,
+					     int alpha_threshold);
+
+
+
+/* drawable */
+
+GdkPixbuf *gdk_pixbuf_xlib_get_from_drawable (GdkPixbuf *dest,
+					      Drawable src,
+					      Colormap cmap, Visual *visual,
+					      int src_x, int src_y,
+					      int dest_x, int dest_y,
+					      int width, int height);
+
+#endif /* GDK_PIXBUF_XLIB_H */
diff --git a/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlibrgb.c b/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlibrgb.c
new file mode 100644
index 0000000000..97e6d71fa2
--- /dev/null
+++ b/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlibrgb.c
@@ -0,0 +1,3706 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "MPL"); you may not use this file except in
+ * compliance with the MPL.  You may obtain a copy of the MPL at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the MPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the MPL
+ * for the specific language governing rights and limitations under the
+ * MPL.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU Library General Public License (the "LGPL"), in
+ * which case the provisions of the LGPL are applicable instead of
+ * those above.  If you wish to allow use of your version of this file
+ * only under the terms of the LGPL and not to allow others to use
+ * your version of this file under the MPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the LGPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the MPL or the LGPL.
+ */
+
+/*
+ * This code is derived from GdkRgb.
+ * For more information on GdkRgb, see http://www.levien.com/gdkrgb/
+ * Raph Levien <raph@acm.org>
+ */
+
+/* Ported by Christopher Blizzard to Xlib.  With permission from the
+ * original authors and the copyright holders of this file, the
+ * contents of this file are also redistributable under the terms of
+ * the Mozilla Public license.  For information about the Mozilla
+ * Public License, please see the license information at
+ * http://www.mozilla.org/MPL/ */
+
+/* This code is copyright the following authors:
+ * Raph Levien          <raph@acm.org>
+ * Manish Singh         <manish@gtk.org>
+ * Tim Janik            <timj@gtk.org>
+ * Peter Mattis         <petm@xcf.berkeley.edu>
+ * Spencer Kimball      <spencer@xcf.berkeley.edu>
+ * Josh MacDonald       <jmacd@xcf.berkeley.edu>
+ * Christopher Blizzard <blizzard@redhat.com>
+ * Owen Taylor          <otaylor@redhat.com>
+ * Shawn T. Amundson    <amundson@gtk.org>
+*/
+
+#include <math.h>
+
+#if HAVE_CONFIG_H
+#  include <config.h>
+#  if STDC_HEADERS
+#    include <stdio.h>
+#    include <stdlib.h>
+#    include <string.h>
+#  endif
+#else
+#  include <stdio.h>
+#  include <stdlib.h>
+#endif
+
+#define ENABLE_GRAYSCALE
+
+/* include this before so that we can get endian definitions if
+   they are there... */
+
+#include "gdk-pixbuf-xlibrgb.h"
+
+#ifndef MIN
+#define MIN(a, b)  (((a) < (b)) ? (a) : (b))
+#endif
+
+#ifndef MAX
+#define MAX(a, b)  (((a) > (b)) ? (a) : (b))
+#endif
+
+typedef enum {
+  LSB_FIRST,
+  MSB_FIRST
+} ByteOrder;
+
+
+typedef struct _XlibRgbInfo   XlibRgbInfo;
+
+typedef void (*XlibRgbConvFunc) (XImage *image,
+				 int ax, int ay,
+				 int width, int height,
+				 unsigned char *buf, int rowstride,
+				 int x_align, int y_align,
+				 XlibRgbCmap *cmap);
+
+/* Some of these fields should go, as they're not being used at all.
+   Globals should generally migrate into here - it's very likely that
+   we'll want to run more than one GdkRgbInfo context at the same time
+   (i.e. some but not all windows have privately installed
+   colormaps). */
+
+struct _XlibRgbInfo
+{
+  Display          *display;
+  Screen           *screen;
+  int               screen_num;
+  XVisualInfo      *x_visual_info;
+  Colormap          cmap;
+  XColor           *cmap_colors;
+  Visual           *default_visualid;
+  Colormap          default_colormap;
+
+  unsigned long    *color_pixels;
+  unsigned long    *gray_pixels;
+  unsigned long    *reserved_pixels;
+
+  unsigned long     red_shift;
+  unsigned long     red_prec;
+  unsigned long     blue_shift;
+  unsigned long     blue_prec;
+  unsigned long     green_shift;
+  unsigned long     green_prec;
+
+  unsigned int      nred_shades;
+  unsigned int      ngreen_shades;
+  unsigned int      nblue_shades;
+  unsigned int      ngray_shades;
+  unsigned int      nreserved;
+
+  unsigned int      bpp;
+  unsigned int      cmap_alloced;
+  double            gamma_val;
+
+  /* Generally, the stage buffer is used to convert 32bit RGB, gray,
+     and indexed images into 24 bit packed RGB. */
+  unsigned char *stage_buf;
+
+  XlibRgbCmap *gray_cmap;
+
+  Bool dith_default;
+
+  Bool bitmap; /* set true if in 1 bit per pixel mode */
+  GC own_gc;
+
+  /* Convert functions */
+  XlibRgbConvFunc conv;
+  XlibRgbConvFunc conv_d;
+
+  XlibRgbConvFunc conv_32;
+  XlibRgbConvFunc conv_32_d;
+
+  XlibRgbConvFunc conv_gray;
+  XlibRgbConvFunc conv_gray_d;
+
+  XlibRgbConvFunc conv_indexed;
+  XlibRgbConvFunc conv_indexed_d;
+};
+
+static Bool xlib_rgb_install_cmap = FALSE;
+static int xlib_rgb_min_colors = 5 * 5 * 5;
+static Bool xlib_rgb_verbose = FALSE;
+
+#define IMAGE_WIDTH 256
+#define STAGE_ROWSTRIDE (IMAGE_WIDTH * 3)
+#define IMAGE_HEIGHT 64
+#define N_IMAGES 6
+
+static XlibRgbInfo *image_info = NULL;
+static XImage *static_image[N_IMAGES];
+static int static_image_idx;
+
+static unsigned char *colorcube;
+static unsigned char *colorcube_d;
+
+static unsigned long
+xlib_get_prec_from_mask(unsigned long val)
+{
+  unsigned long retval = 0;
+  unsigned int cur_bit = 0;
+  /* walk through the number, incrementing the value if
+     the bit in question is set. */
+  while (cur_bit < (sizeof(unsigned long) * 8)) {
+    if ((val >> cur_bit) & 0x1) {
+      retval++;
+    }
+    cur_bit++;
+  }
+  return retval;
+}
+
+static unsigned long
+xlib_get_shift_from_mask(unsigned long val)
+{
+  unsigned long cur_bit = 0;
+  /* walk through the number, looking for the first 1 */
+  while (cur_bit < (sizeof(unsigned long) * 8)) {
+    if ((val >> cur_bit) & 0x1) {
+      return cur_bit;
+    }
+    cur_bit++;
+  }
+  return cur_bit;
+}
+
+
+static int
+xlib_rgb_cmap_fail (const char *msg, Colormap cmap, unsigned long *pixels)
+{
+  unsigned long free_pixels[256];
+  int n_free;
+  int i;
+
+#ifdef VERBOSE
+  printf ("%s", msg);
+#endif
+  n_free = 0;
+  for (i = 0; i < 256; i++)
+    if (pixels[i] < 256)
+      free_pixels[n_free++] = pixels[i];
+  
+  if (n_free)
+    XFreeColors(image_info->display,
+		cmap,
+		free_pixels,
+		n_free,
+		0);
+  return 0;
+}
+
+static void
+xlib_rgb_make_colorcube (unsigned long *pixels, int nr, int ng, int nb)
+{
+  unsigned char rt[16], gt[16], bt[16];
+  int i;
+
+  colorcube = malloc(sizeof(unsigned char) * 4096);
+  memset(colorcube, 0, (sizeof(unsigned char) * 4096));
+  for (i = 0; i < 16; i++)
+    {
+      rt[i] = ng * nb * ((i * 17 * (nr - 1) + 128) >> 8);
+      gt[i] = nb * ((i * 17 * (ng - 1) + 128) >> 8);
+      bt[i] = ((i * 17 * (nb - 1) + 128) >> 8);
+    }
+
+  for (i = 0; i < 4096; i++)
+    {
+      colorcube[i] = pixels[rt[i >> 8] + gt[(i >> 4) & 0x0f] + bt[i & 0x0f]];
+#ifdef VERBOSE
+      printf ("%03x %02x %x %x %x\n", i, colorcube[i], rt[i >> 8], gt[(i >> 4) & 0x0f], bt[i & 0x0f]);
+#endif
+    }
+}
+
+/* this is the colorcube suitable for dithering */
+static void
+xlib_rgb_make_colorcube_d (unsigned long *pixels, int nr, int ng, int nb)
+{
+  int r, g, b;
+  int i;
+
+  colorcube_d = malloc(sizeof(unsigned char) * 512);
+  memset(colorcube_d, 0, (sizeof(unsigned char) * 512));
+  for (i = 0; i < 512; i++)
+    {
+      r = MIN (nr - 1, i >> 6);
+      g = MIN (ng - 1, (i >> 3) & 7);
+      b = MIN (nb - 1, i & 7);
+      colorcube_d[i] = pixels[(r * ng + g) * nb + b];
+    }
+}
+
+/* Try installing a color cube of the specified size.
+   Make the colorcube and return TRUE on success */
+static int
+xlib_rgb_try_colormap (int nr, int ng, int nb)
+{
+  int r, g, b;
+  int ri, gi, bi;
+  int r0, g0, b0;
+  Colormap     cmap;
+  XVisualInfo *visual;
+  XColor      *colors = NULL;
+  XColor       color;
+  unsigned long pixels[256];
+  unsigned long junk[256];
+  int i;
+  int d2;
+  unsigned int colors_needed;
+  int idx;
+  int best[256];
+
+  if (nr * ng * nb < xlib_rgb_min_colors)
+    return FALSE;
+
+  if (image_info->cmap_alloced) {
+    cmap = image_info->cmap;
+    visual = image_info->x_visual_info;
+  }
+  else {
+    cmap = image_info->default_colormap;
+    visual = image_info->x_visual_info;
+  }
+  colors_needed = nr * ng * nb;
+  for (i = 0; i < 256; i++)
+    {
+      best[i] = 192;
+      pixels[i] = 256;
+    }
+
+#ifndef GAMMA
+  if (!xlib_rgb_install_cmap) {
+    /* go out and get the colors for this colormap. */
+    colors = malloc(sizeof(XColor) * visual->colormap_size);
+    for (i=0; i < visual->colormap_size; i++){
+      colors[i].pixel = i;
+    }
+    XQueryColors (image_info->display,
+		  cmap,
+		  colors, visual->colormap_size);
+    /* find color cube colors that are already present */
+    for (i = 0; i < MIN (256, visual->colormap_size); i++)
+      {
+	r = colors[i].red >> 8;
+	g = colors[i].green >> 8;
+	b = colors[i].blue >> 8;
+	ri = (r * (nr - 1) + 128) >> 8;
+	gi = (g * (ng - 1) + 128) >> 8;
+	bi = (b * (nb - 1) + 128) >> 8;
+	r0 = ri * 255 / (nr - 1);
+	g0 = gi * 255 / (ng - 1);
+	b0 = bi * 255 / (nb - 1);
+	idx = ((ri * nr) + gi) * nb + bi;
+	d2 = (r - r0) * (r - r0) + (g - g0) * (g - g0) + (b - b0) * (b - b0);
+	if (d2 < best[idx]) {
+	  if (pixels[idx] < 256)
+	    XFreeColors(image_info->display,
+			cmap,
+			pixels + idx,
+			1, 0);
+	  else
+	    colors_needed--;
+	  color.pixel = colors[i].pixel;
+	  color.red = colors[i].red;
+	  color.green = colors[i].green;
+	  color.blue = colors[i].blue;
+	  color.flags = 0;
+	  if (!XAllocColor(image_info->display, cmap, &color))
+	    return xlib_rgb_cmap_fail ("error allocating system color\n",
+				      cmap, pixels);
+	  pixels[idx] = color.pixel; /* which is almost certainly i */
+	  best[idx] = d2;
+	}
+      }
+  }
+
+#endif
+
+  if (colors_needed)
+    {
+      if (!XAllocColorCells(image_info->display, cmap, 0, NULL, 0, junk, colors_needed))
+	{
+	  char tmp_str[80];
+	  
+	  sprintf (tmp_str,
+		   "%d %d %d colormap failed (in XAllocColorCells)\n",
+		   nr, ng, nb);
+	  return xlib_rgb_cmap_fail (tmp_str, cmap, pixels);
+	}
+      XFreeColors(image_info->display, cmap, junk, (int)colors_needed, 0);
+    }
+
+  for (r = 0, i = 0; r < nr; r++)
+    for (g = 0; g < ng; g++)
+      for (b = 0; b < nb; b++, i++)
+	{
+	  if (pixels[i] == 256)
+	    {
+	      color.red = r * 65535 / (nr - 1);
+	      color.green = g * 65535 / (ng - 1);
+	      color.blue = b * 65535 / (nb - 1);
+
+#ifdef GAMMA
+	      color.red = 65535 * pow (color.red / 65535.0, 0.5);
+	      color.green = 65535 * pow (color.green / 65535.0, 0.5);
+	      color.blue = 65535 * pow (color.blue / 65535.0, 0.5);
+#endif
+
+	      /* This should be a raw XAllocColor call */
+	      if (!XAllocColor(image_info->display, cmap, &color))
+		{
+		  char tmp_str[80];
+
+		  sprintf (tmp_str, "%d %d %d colormap failed\n",
+			   nr, ng, nb);
+		  return xlib_rgb_cmap_fail (tmp_str,
+					    cmap, pixels);
+		}
+	      pixels[i] = color.pixel;
+	    }
+#ifdef VERBOSE
+	  printf ("%d: %lx\n", i, pixels[i]);
+#endif
+	}
+
+  image_info->nred_shades = nr;
+  image_info->ngreen_shades = ng;
+  image_info->nblue_shades = nb;
+  xlib_rgb_make_colorcube (pixels, nr, ng, nb);
+  xlib_rgb_make_colorcube_d (pixels, nr, ng, nb);
+  if (colors)
+    free(colors);
+  return TRUE;
+}
+
+/* Return TRUE on success. */
+static Bool
+xlib_rgb_do_colormaps (void)
+{
+  static const int sizes[][3] = {
+    /*    { 6, 7, 6 }, */
+    { 6, 6, 6 }, 
+    { 6, 6, 5 }, 
+    { 6, 6, 4 }, 
+    { 5, 5, 5 }, 
+    { 5, 5, 4 }, 
+    { 4, 4, 4 }, 
+    { 4, 4, 3 }, 
+    { 3, 3, 3 }, 
+    { 2, 2, 2 }
+  };
+  static const int n_sizes = sizeof(sizes) / (3 * sizeof(int));
+  int i;
+  
+  for (i = 0; i < n_sizes; i++)
+    if (xlib_rgb_try_colormap (sizes[i][0], sizes[i][1], sizes[i][2]))
+      return TRUE;
+  return FALSE;
+}
+
+/* Make a 2 x 2 x 2 colorcube */
+static void
+xlib_rgb_colorcube_222 (void)
+{
+  int i;
+  XColor color;
+  Colormap cmap;
+
+  if (image_info->cmap_alloced)
+    cmap = image_info->cmap;
+  else
+    cmap = image_info->default_colormap;
+
+  colorcube_d = malloc(sizeof(unsigned char) * 512);
+
+  for (i = 0; i < 8; i++)
+    {
+      color.red = ((i & 4) >> 2) * 65535;
+      color.green = ((i & 2) >> 1) * 65535;
+      color.blue = (i & 1) * 65535;
+      XAllocColor (image_info->display, cmap, &color);
+      colorcube_d[((i & 4) << 4) | ((i & 2) << 2) | (i & 1)] = color.pixel;
+    }
+}
+
+void
+xlib_rgb_set_verbose (Bool verbose)
+{
+  xlib_rgb_verbose = verbose;
+}
+
+void
+xlib_rgb_set_install (Bool install)
+{
+  xlib_rgb_install_cmap = install;
+}
+
+void
+xlib_rgb_set_min_colors (int min_colors)
+{
+  xlib_rgb_min_colors = min_colors;
+}
+
+/* Return a "score" based on the following criteria (in hex):
+
+   x000 is the quality - 1 is 1bpp, 2 is 4bpp,
+                         4 is 8bpp,
+			 7 is 15bpp truecolor, 8 is 16bpp truecolor,
+			 9 is 24bpp truecolor.
+   0x00 is the speed - 1 is the normal case,
+                       2 means faster than normal
+   00x0 gets a point for being the system visual
+   000x gets a point for being pseudocolor
+
+   A caveat: in the 8bpp modes, being the system visual seems to be
+   quite important. Thus, all of the 8bpp modes should be ranked at
+   the same speed.
+*/
+
+static guint32
+xlib_rgb_score_visual (XVisualInfo *visual)
+{
+  guint32 quality, speed, pseudo, sys;
+  static const char* visual_names[] =
+  {
+    "static gray",
+    "grayscale",
+    "static color",
+    "pseudo color",
+    "true color",
+    "direct color",
+  };
+  
+  
+  quality = 0;
+  speed = 1;
+  sys = 0;
+  if (visual->class == TrueColor ||
+      visual->class == DirectColor)
+    {
+      if (visual->depth == 24)
+	{
+	  quality = 9;
+	  /* Should test for MSB visual here, and set speed if so. */
+	}
+      else if (visual->depth == 16)
+	quality = 8;
+      else if (visual->depth == 15)
+	quality = 7;
+      else if (visual->depth == 8)
+	quality = 4;
+    }
+  else if (visual->class == PseudoColor ||
+	   visual->class == StaticColor)
+    {
+      if (visual->depth == 8)
+	quality = 4;
+      else if (visual->depth == 4)
+	quality = 2;
+      else if (visual->depth == 1)
+	quality = 1;
+    }
+  else if (visual->class == StaticGray
+#ifdef ENABLE_GRAYSCALE
+	   || visual->class == GrayScale
+#endif
+	   )
+    {
+      if (visual->depth == 8)
+	quality = 4;
+      else if (visual->depth == 4)
+	quality = 2;
+      else if (visual->depth == 1)
+	quality = 1;
+    }
+
+  if (quality == 0)
+    return 0;
+
+  sys = (visual->visualid == image_info->default_visualid->visualid);
+  
+  pseudo = (visual->class == PseudoColor || visual->class == TrueColor);
+
+  if (xlib_rgb_verbose)
+    printf ("Visual 0x%x, type = %s, depth = %d, %ld:%ld:%ld%s; score=%x\n",
+	    (int)visual->visualid,
+	    visual_names[visual->class],
+	    visual->depth,
+	    visual->red_mask,
+	    visual->green_mask,
+	    visual->blue_mask,
+	    sys ? " (system)" : "",
+	    (quality << 12) | (speed << 8) | (sys << 4) | pseudo);
+  
+  return (quality << 12) | (speed << 8) | (sys << 4) | pseudo;
+}
+
+static void
+xlib_rgb_choose_visual (void)
+{
+  XVisualInfo *visuals;
+  XVisualInfo *visual;
+  XVisualInfo *best_visual;
+  XVisualInfo *final_visual;
+  XVisualInfo template;
+  int num_visuals;
+  guint32 score, best_score;
+  int cur_visual = 1;
+  int i;
+  
+  template.screen = image_info->screen_num;
+  visuals = XGetVisualInfo(image_info->display, VisualScreenMask,
+			   &template, &num_visuals);
+  
+  best_visual = visuals;
+  best_score = xlib_rgb_score_visual (best_visual);
+
+  for (i = cur_visual; i < num_visuals; i++)
+    {
+      visual = &visuals[i];
+      score = xlib_rgb_score_visual  (visual);
+      if (score > best_score)
+	{
+	  best_score = score;
+	  best_visual = visual;
+	}
+    }
+  /* make a copy of the visual so that we can free
+     the allocated visual list above. */
+  final_visual = malloc(sizeof(XVisualInfo));
+  memcpy(final_visual, best_visual, sizeof(XVisualInfo));
+  image_info->x_visual_info = final_visual;
+  XFree(visuals);
+  /* set up the shift and the precision for the red, green and blue.
+     this only applies to cool visuals like true color and direct color. */
+  if (image_info->x_visual_info->class == TrueColor ||
+      image_info->x_visual_info->class == DirectColor) {
+    image_info->red_shift = xlib_get_shift_from_mask(image_info->x_visual_info->red_mask);
+    image_info->red_prec = xlib_get_prec_from_mask(image_info->x_visual_info->red_mask);
+    image_info->green_shift = xlib_get_shift_from_mask(image_info->x_visual_info->green_mask);
+    image_info->green_prec = xlib_get_prec_from_mask(image_info->x_visual_info->green_mask);
+    image_info->blue_shift = xlib_get_shift_from_mask(image_info->x_visual_info->blue_mask);
+    image_info->blue_prec = xlib_get_prec_from_mask(image_info->x_visual_info->blue_mask);
+  }
+}
+
+static void
+xlib_rgb_choose_visual_for_xprint (int aDepth)
+{
+  XVisualInfo *visuals;
+  XVisualInfo *visual;
+  XVisualInfo *best_visual;
+  XVisualInfo *final_visual;
+  XVisualInfo template;
+  int num_visuals;
+  int cur_visual = 1;
+  int i;
+
+  XWindowAttributes win_att;
+  Status ret_stat;
+  Visual      *root_visual;
+
+  ret_stat = XGetWindowAttributes(image_info->display, 
+			RootWindow(image_info->display, image_info->screen_num),
+			&win_att);
+  root_visual = win_att.visual;
+  template.screen = image_info->screen_num;
+  visuals = XGetVisualInfo(image_info->display, VisualScreenMask,
+			   &template, &num_visuals);
+ 
+  best_visual = visuals;
+  if (best_visual->visual != root_visual) {
+     for (i = cur_visual; i < num_visuals; i++) {
+        visual = &visuals[i];
+        if (visual->visual == root_visual) {
+           best_visual = visual;
+           break;
+        }
+      }
+   }
+  /* make a copy of the visual so that we can free
+     the allocated visual list above. */
+  final_visual = malloc(sizeof(XVisualInfo));
+  memcpy(final_visual, best_visual, sizeof(XVisualInfo));
+  image_info->x_visual_info = final_visual;
+  XFree(visuals);
+  /* set up the shift and the precision for the red, green and blue.
+     this only applies to cool visuals like true color and direct color. */
+  if (image_info->x_visual_info->class == TrueColor ||
+      image_info->x_visual_info->class == DirectColor) {
+    image_info->red_shift = xlib_get_shift_from_mask(image_info->x_visual_info->red_mask);
+    image_info->red_prec = xlib_get_prec_from_mask(image_info->x_visual_info->red_mask);
+    image_info->green_shift = xlib_get_shift_from_mask(image_info->x_visual_info->green_mask);
+    image_info->green_prec = xlib_get_prec_from_mask(image_info->x_visual_info->green_mask);
+    image_info->blue_shift = xlib_get_shift_from_mask(image_info->x_visual_info->blue_mask);
+    image_info->blue_prec = xlib_get_prec_from_mask(image_info->x_visual_info->blue_mask);
+  }
+}
+
+static void xlib_rgb_select_conv (XImage *image, ByteOrder byte_order);
+
+static void
+xlib_rgb_set_gray_cmap (Colormap cmap)
+{
+  int i;
+  XColor color;
+  int status;
+  unsigned long pixels[256];
+  int r, g, b, gray;
+
+  for (i = 0; i < 256; i++)
+    {
+      color.pixel = i;
+      color.red = i * 257;
+      color.green = i * 257;
+      color.blue = i * 257;
+      status = XAllocColor(image_info->display, cmap, &color);
+      pixels[i] = color.pixel;
+#ifdef VERBOSE
+      printf ("allocating pixel %d, %x %x %x, result %d\n",
+	       color.pixel, color.red, color.green, color.blue, status);
+#endif
+    }
+
+  /* Now, we make fake colorcubes - we ultimately just use the pseudocolor
+     methods. */
+
+  colorcube = malloc(sizeof(unsigned char) * 4096);
+
+  for (i = 0; i < 4096; i++)
+    {
+      r = (i >> 4) & 0xf0;
+      r = r | r >> 4;
+      g = i & 0xf0;
+      g = g | g >> 4;
+      b = (i << 4 & 0xf0);
+      b = b | b >> 4;
+      gray = (g + ((r + b) >> 1)) >> 1;
+      colorcube[i] = pixels[gray];
+    }
+}
+
+/**
+ * xlib_rgb_init:
+ * @display: X Display to use.
+ * @screen: Screen to use.
+ * 
+ * Initializes the XlibRGB machinery with the default depth.  If you use this
+ * function XlibRGB will automatically pick the best visual available on your
+ * display.  This function or xlib_rgb_init_with_depth() must be called before
+ * using any of the other functions in XlibRGB.
+ **/
+void
+xlib_rgb_init (Display *display, Screen *screen)
+{
+  int prefDepth = -1;            // let the function do the visual scoring
+  xlib_rgb_init_with_depth(display, screen, prefDepth);
+}
+
+/**
+ * xlib_rgb_init_with_depth:
+ * @display: X display to use.
+ * @screen: Screen to use.
+ * @prefDepth: Visual depth to use for color substitution tables.  This must
+ * be one of the supported visual depths in the specified @display.
+ * 
+ * Initializes the XlibRGB machinery with a particular depth you specify,
+ * instead of automatically picking the best depth in the display.  This
+ * function or xlib_rgb_init() must be called before using any of the other
+ * functions in XlibRGB.
+ **/
+void
+xlib_rgb_init_with_depth (Display *display, Screen *screen, int prefDepth)
+{
+  int i;
+  static const int byte_order[1] = { 1 };
+
+  static int initialized = 0;
+
+  if (initialized)
+  {
+    return;
+  }
+
+  initialized = 1;
+
+  /* check endian sanity */
+#if G_BYTE_ORDER == G_BIG_ENDIAN
+  if (((char *)byte_order)[0] == 1) {
+    printf ("xlib_rgb_init: compiled for big endian, but this is a little endian machine.\n\n");
+    exit(1);
+  }
+#else
+  if (((char *)byte_order)[0] != 1) {
+    printf ("xlib_rgb_init: compiled for little endian, but this is a big endian machine.\n\n");
+    exit(1);
+  }
+#endif
+
+  if (image_info == NULL)
+    {
+      image_info = malloc(sizeof(XlibRgbInfo));
+      memset(image_info, 0, sizeof(XlibRgbInfo));
+
+      image_info->display = display;
+      image_info->screen = screen;
+      image_info->screen_num = XScreenNumberOfScreen(screen);
+      image_info->x_visual_info = NULL;
+      image_info->cmap = 0;
+      image_info->default_visualid = DefaultVisual(display, image_info->screen_num);
+      image_info->default_colormap = DefaultColormap(display, image_info->screen_num);
+
+      image_info->color_pixels = NULL;
+      image_info->gray_pixels = NULL;
+      image_info->reserved_pixels = NULL;
+
+      image_info->nred_shades = 6;
+      image_info->ngreen_shades = 6;
+      image_info->nblue_shades = 4;
+      image_info->ngray_shades = 24;
+      image_info->nreserved = 0;
+
+      image_info->bpp = 0;
+      image_info->cmap_alloced = FALSE;
+      image_info->gamma_val = 1.0;
+
+      image_info->stage_buf = NULL;
+
+      image_info->own_gc = 0;
+      
+      image_info->red_shift = 0;
+      image_info->red_prec = 0;
+      image_info->green_shift = 0;
+      image_info->green_prec = 0;
+      image_info->blue_shift = 0;
+      image_info->blue_prec = 0;
+
+      if (prefDepth != -1)
+        xlib_rgb_choose_visual_for_xprint (prefDepth);
+      else
+        xlib_rgb_choose_visual ();
+
+      if ((image_info->x_visual_info->class == PseudoColor ||
+	   image_info->x_visual_info->class == StaticColor) &&
+	  image_info->x_visual_info->depth < 8 &&
+	  image_info->x_visual_info->depth >= 3)
+	{
+	  image_info->cmap = image_info->default_colormap;
+	  xlib_rgb_colorcube_222 ();
+	}
+      else if (image_info->x_visual_info->class == PseudoColor)
+	{
+	  if (xlib_rgb_install_cmap ||
+	      image_info->x_visual_info->visualid != image_info->default_visualid->visualid)
+	    {
+	      image_info->cmap = XCreateColormap(image_info->display,
+						 RootWindow(image_info->display, image_info->screen_num),
+						 image_info->x_visual_info->visual,
+						 AllocNone);
+	      image_info->cmap_alloced = TRUE;
+	    }
+	  if (!xlib_rgb_do_colormaps ())
+	    {
+	      image_info->cmap = XCreateColormap(image_info->display,
+						 RootWindow(image_info->display, image_info->screen_num),
+						 image_info->x_visual_info->visual,
+						 AllocNone);
+	      image_info->cmap_alloced = TRUE;
+	      xlib_rgb_do_colormaps ();
+	    }
+	  if (xlib_rgb_verbose)
+	    printf ("color cube: %d x %d x %d\n",
+		    image_info->nred_shades,
+		    image_info->ngreen_shades,
+		    image_info->nblue_shades);
+
+	  if (!image_info->cmap_alloced)
+	      image_info->cmap = image_info->default_colormap;
+	}
+#ifdef ENABLE_GRAYSCALE
+      else if (image_info->x_visual_info->class == GrayScale)
+	{
+	  image_info->cmap = XCreateColormap(image_info->display,
+					     RootWindow(image_info->display, image_info->screen_num),
+					     image_info->x_visual_info->visual,
+					     AllocNone);
+	  xlib_rgb_set_gray_cmap (image_info->cmap);
+	  image_info->cmap_alloced = TRUE;
+     	}
+#endif
+      else
+	{
+	  /* Always install colormap in direct color. */
+	  if (image_info->x_visual_info->class != DirectColor && 
+	      image_info->x_visual_info->visualid == image_info->default_visualid->visualid)
+	    image_info->cmap = image_info->default_colormap;
+	  else
+	    {
+	      image_info->cmap = XCreateColormap(image_info->display,
+						 RootWindow(image_info->display, image_info->screen_num),
+						 image_info->x_visual_info->visual,
+						 AllocNone);
+	      image_info->cmap_alloced = TRUE;
+	    }
+	}
+
+      image_info->bitmap = (image_info->x_visual_info->depth == 1);
+
+      for (i = 0; i < N_IMAGES; i++) {
+	if (image_info->bitmap) {
+	  /* Use malloc() instead of g_malloc since X will free() this mem */
+	  static_image[i] = XCreateImage(image_info->display,
+					 image_info->x_visual_info->visual,
+					 1,
+					 XYBitmap,
+					 0, 0, IMAGE_WIDTH, IMAGE_HEIGHT,
+					 8,
+					 0);
+	  static_image[i]->data = malloc(IMAGE_WIDTH * IMAGE_HEIGHT >> 3);
+	  static_image[i]->bitmap_bit_order = MSBFirst;
+	  static_image[i]->byte_order = MSBFirst;
+	}
+	else {
+	  static_image[i] = XCreateImage(image_info->display,
+					 image_info->x_visual_info->visual,
+					 (unsigned int)image_info->x_visual_info->depth,
+					 ZPixmap,
+					 0, 0,
+					 IMAGE_WIDTH,
+					 IMAGE_HEIGHT,
+					 32, 0);
+	  /* remove this when we are using shared memory.. */
+	  static_image[i]->data = malloc((size_t)IMAGE_WIDTH * IMAGE_HEIGHT * image_info->x_visual_info->depth);
+	  static_image[i]->bitmap_bit_order = MSBFirst;
+	  static_image[i]->byte_order = MSBFirst;
+	}
+      }
+      /* ok, so apparently, image_info->bpp is actually
+	 BYTES per pixel.  What fun! */
+      switch (static_image[0]->bits_per_pixel) {
+      case 1:
+      case 8:
+	image_info->bpp = 1;
+	break;
+      case 16:
+	image_info->bpp = 2;
+	break;
+      case 24:
+	image_info->bpp = 3;
+	break;
+      case 32:
+	image_info->bpp = 4;
+	break;
+      }
+      xlib_rgb_select_conv (static_image[0], MSB_FIRST);
+    }
+}
+
+/**
+ * xlib_rgb_xpixel_from_rgb:
+ * @rgb: 32-bit representation of an RGB value, specified as 0x00RRGGBB.
+ * 
+ * Converts an RGB triplet into the closest color that XlibRGB visual can
+ * handle.
+ * 
+ * Return value: X pixel value that corresponds to the closest color in the
+ * XlibRGB visual and colormap.
+ **/
+unsigned long
+xlib_rgb_xpixel_from_rgb (guint32 rgb)
+{
+  unsigned long pixel = 0;
+
+  if (image_info->bitmap)
+    {
+      return ((rgb & 0xff0000) >> 16) +
+	((rgb & 0xff00) >> 7) +
+	(rgb & 0xff) > 510;
+    }
+  else if (image_info->x_visual_info->class == PseudoColor)
+    pixel = colorcube[((rgb & 0xf00000) >> 12) |
+		     ((rgb & 0xf000) >> 8) |
+		     ((rgb & 0xf0) >> 4)];
+  else if (image_info->x_visual_info->depth < 8 &&
+	   image_info->x_visual_info->class == StaticColor)
+    {
+      pixel = colorcube_d[((rgb & 0x800000) >> 17) |
+			 ((rgb & 0x8000) >> 12) |
+			 ((rgb & 0x80) >> 7)];
+    }
+  else if (image_info->x_visual_info->class == TrueColor ||
+	   image_info->x_visual_info->class == DirectColor)
+    {
+#ifdef VERBOSE
+      printf ("shift, prec: r %d %d g %d %d b %d %d\n",
+	      image_info->red_shift,
+	      image_info->red_prec,
+	      image_info->green_shift,
+	      image_info->green_prec,
+	      image_info->blue_shift,
+	      image_info->blue_prec);
+#endif
+
+      pixel = (((((rgb & 0xff0000) >> 16) >>
+		 (8 - image_info->red_prec)) <<
+		image_info->red_shift) +
+	       ((((rgb & 0xff00) >> 8)  >>
+		 (8 - image_info->green_prec)) <<
+		image_info->green_shift) +
+	       (((rgb & 0xff) >>
+		 (8 - image_info->blue_prec)) <<
+		image_info->blue_shift));
+    }
+  else if (image_info->x_visual_info->class == StaticGray ||
+	   image_info->x_visual_info->class == GrayScale)
+    {
+      int gray = ((rgb & 0xff0000) >> 16) +
+	((rgb & 0xff00) >> 7) +
+	(rgb & 0xff);
+
+      return gray >> (10 - image_info->x_visual_info->depth);
+    }
+
+  return pixel;
+}
+
+/**
+ * xlib_rgb_gc_set_foreground:
+ * @gc: A graphic context.
+ * @rgb: 32-bit representation of an RGB value, specified as 0x00RRGGBB.
+ * 
+ * This is a convenience function to set the foreground of a GC from an RGB
+ * triplet.  It calls xlib_rgb_xpixel_from_rgb() internally and uses the
+ * returned pixel value to set the GC's foreground.
+ **/
+void
+xlib_rgb_gc_set_foreground (GC gc, guint32 rgb)
+{
+  unsigned long color;
+
+  color = xlib_rgb_xpixel_from_rgb (rgb);
+  XSetForeground(image_info->display, gc, color);
+}
+
+/**
+ * xlib_rgb_gc_set_foreground:
+ * @gc: A graphic context.
+ * @rgb: 32-bit representation of an RGB value, specified as 0x00RRGGBB.
+ * 
+ * This is a convenience function to set the background of a GC from an RGB
+ * triplet.  It calls xlib_rgb_xpixel_from_rgb() internally and uses the
+ * returned pixel value to set the GC's background.
+ **/
+void
+xlib_rgb_gc_set_background (GC gc, guint32 rgb)
+{
+  unsigned long color;
+
+  color = xlib_rgb_xpixel_from_rgb (rgb);
+  XSetBackground(image_info->display, gc, color);
+}
+
+#if G_BYTE_ORDER == G_LITTLE_ENDIAN
+#define HAIRY_CONVERT_8
+#endif
+
+#ifdef HAIRY_CONVERT_8
+static void
+xlib_rgb_convert_8 (XImage *image,
+		   int ax, int ay, int width, int height,
+		   unsigned char *buf, int rowstride,
+		   int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  int x, y;
+  int bpl;
+  unsigned char *obuf, *obptr;
+  unsigned char *bptr, *bp2;
+  int r, g, b;
+
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + ax;
+  for (y = 0; y < height; y++)
+    {
+      bp2 = bptr;
+      obptr = obuf;
+      if (((unsigned long)obuf | (unsigned long) bp2) & 3)
+	{
+	  for (x = 0; x < width; x++)
+	    {
+	      r = *bp2++;
+	      g = *bp2++;
+	      b = *bp2++;
+	      obptr[0] = colorcube[((r & 0xf0) << 4) |
+				  (g & 0xf0) |
+				  (b >> 4)];
+	      obptr++;
+	    }
+	}
+      else
+	{
+	  for (x = 0; x < width - 3; x += 4)
+	    {
+	      guint32 r1b0g0r0;
+	      guint32 g2r2b1g1;
+	      guint32 b3g3r3b2;
+
+	      r1b0g0r0 = ((guint32 *)bp2)[0];
+	      g2r2b1g1 = ((guint32 *)bp2)[1];
+	      b3g3r3b2 = ((guint32 *)bp2)[2];
+	      ((guint32 *)obptr)[0] =
+		colorcube[((r1b0g0r0 & 0xf0) << 4) | 
+			 ((r1b0g0r0 & 0xf000) >> 8) |
+			 ((r1b0g0r0 & 0xf00000) >> 20)] |
+		(colorcube[((r1b0g0r0 & 0xf0000000) >> 20) |
+			  (g2r2b1g1 & 0xf0) |
+			  ((g2r2b1g1 & 0xf000) >> 12)] << 8) |
+		(colorcube[((g2r2b1g1 & 0xf00000) >> 12) |
+			  ((g2r2b1g1 & 0xf0000000) >> 24) |
+			  ((b3g3r3b2 & 0xf0) >> 4)] << 16) |
+		(colorcube[((b3g3r3b2 & 0xf000) >> 4) |
+			  ((b3g3r3b2 & 0xf00000) >> 16) |
+			  (b3g3r3b2 >> 28)] << 24);
+	      bp2 += 12;
+	      obptr += 4;
+	    }
+	  for (; x < width; x++)
+	    {
+	      r = *bp2++;
+	      g = *bp2++;
+	      b = *bp2++;
+	      obptr[0] = colorcube[((r & 0xf0) << 4) |
+				  (g & 0xf0) |
+				  (b >> 4)];
+	      obptr++;
+	    }
+	}
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+#else
+static void
+xlib_rgb_convert_8 (XImage *image,
+		   int ax, int ay, int width, int height,
+		   unsigned char *buf, int rowstride,
+		   int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  int x, y;
+  int bpl;
+  unsigned char *obuf, *obptr;
+  unsigned char *bptr, *bp2;
+  int r, g, b;
+
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + ax;
+  for (y = 0; y < height; y++)
+    {
+      bp2 = bptr;
+      obptr = obuf;
+      for (x = 0; x < width; x++)
+	{
+	  r = *bp2++;
+	  g = *bp2++;
+	  b = *bp2++;
+	  obptr[0] = colorcube[((r & 0xf0) << 4) |
+			      (g & 0xf0) |
+			      (b >> 4)];
+	  obptr++;
+	}
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+#endif
+
+#if 1
+
+/* This dither table was generated by Raph Levien using patented
+   technology (US Patent 5,276,535). The dither table itself is in the
+   public domain. */
+
+#define DM_WIDTH 128
+#define DM_WIDTH_SHIFT 7
+#define DM_HEIGHT 128
+static const unsigned char DM[128][128] =
+{
+  { 0, 41, 23, 5, 17, 39, 7, 15, 62, 23, 40, 51, 31, 47, 9, 32, 52, 27, 57, 25, 6, 61, 27, 52, 37, 7, 40, 63, 18, 36, 10, 42, 25, 62, 45, 34, 20, 42, 37, 14, 35, 29, 50, 10, 61, 2, 40, 8, 37, 12, 58, 22, 5, 41, 10, 39, 0, 60, 11, 46, 2, 55, 38, 17, 36, 59, 13, 54, 37, 56, 8, 29, 16, 13, 63, 22, 41, 55, 7, 20, 49, 14, 23, 55, 37, 23, 19, 36, 15, 49, 23, 63, 30, 14, 38, 27, 53, 13, 22, 41, 19, 31, 7, 19, 50, 30, 49, 16, 3, 32, 56, 40, 29, 34, 8, 48, 19, 45, 4, 51, 12, 46, 35, 49, 16, 42, 12, 62 },
+  { 30, 57, 36, 54, 47, 34, 52, 27, 43, 4, 28, 7, 17, 36, 62, 13, 44, 7, 18, 48, 33, 21, 44, 14, 30, 47, 12, 33, 5, 55, 31, 58, 13, 30, 4, 17, 52, 10, 60, 26, 46, 0, 39, 27, 42, 22, 47, 25, 60, 32, 9, 38, 48, 17, 59, 30, 49, 18, 34, 25, 51, 19, 5, 48, 21, 8, 28, 46, 1, 32, 41, 19, 54, 47, 37, 18, 28, 11, 44, 30, 39, 56, 2, 33, 8, 42, 61, 28, 58, 8, 46, 9, 41, 4, 58, 7, 21, 48, 59, 10, 52, 14, 42, 57, 12, 25, 7, 53, 42, 24, 11, 50, 17, 59, 42, 2, 36, 60, 32, 17, 63, 29, 21, 7, 59, 32, 24, 39 },
+  { 22, 8, 16, 32, 3, 25, 13, 57, 18, 45, 58, 39, 55, 20, 5, 42, 23, 34, 63, 1, 51, 10, 58, 4, 60, 23, 53, 27, 44, 21, 3, 48, 8, 50, 43, 54, 27, 32, 5, 55, 21, 58, 12, 53, 6, 36, 14, 50, 17, 29, 53, 15, 24, 52, 7, 36, 13, 42, 4, 53, 9, 35, 61, 26, 56, 32, 49, 15, 62, 23, 6, 60, 2, 31, 4, 48, 58, 38, 15, 61, 5, 25, 47, 28, 50, 15, 7, 40, 3, 32, 33, 52, 25, 50, 35, 42, 61, 3, 28, 36, 23, 63, 4, 33, 46, 62, 36, 23, 60, 6, 54, 28, 4, 37, 23, 55, 25, 8, 42, 54, 14, 6, 56, 38, 19, 52, 4, 46 },
+  { 48, 53, 43, 12, 45, 63, 30, 37, 9, 34, 21, 1, 25, 47, 29, 58, 3, 54, 15, 39, 29, 17, 38, 35, 20, 43, 1, 49, 15, 59, 29, 39, 22, 35, 16, 23, 1, 47, 39, 18, 8, 44, 25, 31, 57, 19, 63, 4, 45, 3, 42, 61, 1, 31, 45, 20, 57, 29, 62, 21, 32, 41, 14, 44, 3, 39, 5, 34, 10, 43, 51, 35, 23, 52, 40, 10, 21, 1, 53, 18, 51, 43, 12, 62, 18, 54, 26, 51, 20, 57, 14, 1, 62, 16, 11, 18, 32, 39, 17, 44, 1, 48, 26, 37, 18, 2, 51, 14, 28, 45, 35, 18, 57, 13, 47, 11, 51, 20, 2, 39, 31, 47, 25, 1, 50, 11, 60, 7 },
+  { 18, 28, 1, 56, 21, 10, 51, 2, 46, 54, 14, 61, 11, 50, 13, 38, 19, 31, 45, 9, 55, 24, 47, 5, 54, 9, 62, 11, 35, 8, 51, 14, 57, 6, 63, 40, 58, 14, 51, 28, 62, 34, 15, 48, 1, 41, 30, 35, 55, 21, 34, 11, 49, 37, 8, 52, 4, 23, 15, 43, 1, 58, 11, 23, 53, 16, 55, 26, 58, 18, 27, 12, 45, 14, 25, 63, 42, 33, 27, 35, 9, 31, 21, 38, 1, 44, 34, 12, 48, 38, 21, 44, 29, 47, 26, 53, 1, 46, 54, 8, 59, 29, 11, 55, 22, 41, 33, 20, 39, 1, 48, 9, 44, 32, 5, 62, 29, 44, 57, 23, 10, 58, 34, 43, 15, 37, 26, 33 },
+  { 51, 38, 59, 24, 35, 42, 19, 60, 5, 32, 41, 26, 43, 33, 7, 53, 48, 11, 59, 23, 42, 2, 61, 30, 16, 40, 32, 24, 56, 41, 19, 33, 37, 26, 47, 9, 31, 22, 2, 45, 9, 54, 4, 37, 21, 52, 11, 23, 7, 57, 16, 25, 55, 18, 63, 27, 46, 39, 56, 10, 50, 37, 29, 47, 19, 63, 24, 9, 46, 2, 39, 60, 9, 57, 30, 7, 49, 11, 59, 3, 45, 57, 5, 60, 29, 22, 5, 60, 30, 9, 59, 18, 40, 6, 57, 36, 30, 12, 24, 34, 15, 40, 52, 6, 49, 9, 58, 4, 63, 12, 26, 61, 22, 53, 38, 16, 35, 14, 28, 50, 42, 17, 5, 28, 62, 20, 54, 12 },
+  { 26, 6, 31, 15, 49, 6, 38, 27, 22, 49, 16, 56, 2, 62, 30, 21, 0, 36, 28, 6, 49, 32, 13, 52, 26, 50, 19, 46, 3, 26, 62, 0, 53, 12, 29, 3, 53, 41, 60, 24, 38, 13, 58, 16, 43, 9, 59, 39, 46, 28, 44, 40, 2, 33, 13, 41, 16, 6, 47, 31, 26, 17, 57, 6, 38, 0, 42, 36, 29, 52, 20, 31, 48, 0, 34, 56, 20, 36, 23, 54, 14, 41, 24, 37, 10, 55, 46, 25, 16, 45, 36, 4, 55, 23, 15, 8, 50, 62, 5, 56, 44, 20, 13, 28, 59, 31, 24, 47, 31, 52, 37, 17, 40, 0, 26, 49, 3, 60, 7, 33, 0, 61, 53, 40, 8, 45, 2, 41 },
+  { 16, 63, 43, 4, 61, 24, 56, 13, 53, 8, 36, 12, 24, 41, 16, 46, 60, 26, 52, 39, 14, 57, 21, 37, 0, 45, 7, 59, 38, 17, 43, 10, 45, 20, 61, 43, 19, 11, 33, 17, 50, 32, 23, 61, 28, 49, 26, 0, 18, 51, 5, 60, 22, 58, 29, 0, 59, 34, 19, 62, 3, 52, 7, 44, 30, 59, 13, 50, 15, 62, 7, 17, 38, 22, 44, 15, 40, 4, 47, 28, 33, 17, 49, 16, 51, 40, 10, 56, 0, 53, 13, 49, 28, 38, 60, 21, 43, 19, 37, 27, 3, 51, 34, 39, 0, 45, 15, 43, 10, 21, 3, 55, 8, 33, 59, 10, 41, 18, 52, 24, 46, 20, 30, 13, 58, 22, 36, 57 },
+  { 50, 34, 11, 47, 29, 17, 44, 0, 33, 63, 28, 46, 52, 5, 57, 10, 42, 18, 4, 63, 20, 8, 44, 10, 56, 34, 14, 29, 5, 54, 23, 59, 32, 49, 7, 34, 49, 27, 56, 0, 42, 7, 46, 3, 40, 6, 54, 32, 62, 13, 36, 10, 47, 8, 35, 49, 24, 51, 12, 40, 22, 35, 60, 12, 22, 51, 33, 4, 40, 25, 43, 55, 5, 54, 12, 61, 26, 51, 8, 62, 0, 53, 7, 63, 2, 32, 19, 34, 42, 24, 31, 63, 2, 10, 45, 33, 0, 48, 9, 61, 22, 47, 8, 62, 18, 56, 7, 54, 27, 57, 46, 30, 50, 19, 45, 30, 56, 36, 22, 47, 11, 38, 3, 51, 32, 48, 18, 9 },
+  { 0, 21, 40, 19, 52, 9, 37, 48, 20, 40, 3, 18, 27, 38, 35, 22, 31, 56, 13, 35, 46, 28, 60, 40, 27, 18, 61, 50, 41, 30, 7, 36, 2, 25, 16, 57, 5, 15, 47, 29, 55, 19, 30, 52, 15, 34, 20, 12, 43, 30, 20, 54, 25, 44, 53, 12, 38, 5, 55, 27, 48, 15, 33, 27, 45, 8, 19, 28, 56, 11, 33, 49, 18, 36, 29, 2, 45, 16, 39, 19, 31, 43, 27, 35, 20, 52, 26, 6, 61, 11, 41, 17, 29, 51, 20, 56, 25, 32, 41, 17, 53, 31, 25, 14, 42, 23, 35, 16, 38, 6, 34, 12, 15, 62, 6, 21, 13, 1, 63, 9, 55, 27, 43, 25, 14, 4, 31, 55 },
+  { 44, 29, 61, 2, 35, 58, 26, 15, 60, 10, 51, 59, 14, 55, 8, 50, 2, 44, 25, 51, 1, 33, 16, 4, 48, 36, 2, 21, 12, 57, 48, 13, 51, 55, 40, 28, 37, 62, 8, 39, 12, 63, 36, 10, 59, 24, 56, 47, 9, 50, 41, 1, 32, 17, 6, 21, 61, 30, 9, 43, 1, 54, 41, 2, 54, 37, 48, 61, 1, 46, 21, 3, 58, 24, 50, 32, 60, 10, 57, 25, 46, 12, 59, 4, 45, 13, 57, 47, 27, 39, 5, 58, 47, 14, 35, 4, 52, 13, 60, 6, 36, 10, 45, 55, 4, 50, 29, 2, 61, 50, 25, 58, 44, 24, 36, 42, 54, 28, 40, 32, 16, 56, 6, 62, 46, 39, 60, 23 },
+  { 7, 48, 14, 54, 23, 40, 4, 45, 30, 22, 42, 32, 1, 44, 20, 29, 58, 8, 37, 19, 41, 54, 24, 58, 9, 53, 25, 46, 34, 16, 23, 38, 27, 11, 18, 1, 52, 21, 35, 22, 48, 5, 25, 45, 18, 38, 2, 27, 35, 4, 57, 15, 62, 39, 57, 28, 42, 16, 36, 60, 24, 18, 10, 63, 20, 5, 16, 23, 37, 14, 59, 27, 41, 8, 13, 42, 21, 35, 6, 50, 3, 38, 15, 48, 30, 39, 17, 3, 49, 14, 53, 33, 24, 7, 61, 44, 11, 39, 23, 49, 19, 58, 1, 32, 36, 12, 60, 41, 20, 13, 41, 4, 39, 1, 48, 8, 18, 51, 14, 44, 5, 37, 21, 34, 1, 26, 10, 37 },
+  { 53, 36, 27, 9, 50, 12, 32, 55, 2, 57, 7, 17, 48, 34, 63, 15, 40, 26, 62, 11, 49, 6, 31, 39, 22, 42, 6, 63, 1, 39, 60, 4, 42, 61, 32, 45, 24, 44, 2, 60, 16, 41, 53, 1, 33, 61, 49, 17, 63, 23, 45, 26, 33, 3, 23, 46, 2, 50, 20, 4, 45, 34, 49, 30, 39, 58, 44, 31, 53, 34, 6, 52, 30, 47, 63, 1, 53, 22, 42, 31, 58, 23, 54, 22, 61, 8, 36, 59, 22, 35, 21, 1, 55, 40, 27, 16, 30, 54, 2, 29, 43, 16, 39, 63, 21, 46, 26, 10, 48, 32, 19, 53, 30, 56, 26, 60, 33, 4, 61, 23, 49, 59, 15, 53, 19, 58, 42, 16 },
+  { 20, 5, 59, 46, 25, 62, 7, 19, 43, 25, 37, 61, 11, 24, 4, 54, 12, 52, 3, 32, 17, 61, 12, 47, 15, 55, 18, 31, 53, 28, 9, 50, 21, 6, 55, 9, 58, 14, 54, 26, 33, 7, 31, 58, 13, 21, 8, 42, 29, 6, 37, 11, 48, 52, 14, 60, 11, 39, 56, 32, 14, 58, 7, 26, 17, 4, 42, 8, 11, 47, 19, 38, 10, 17, 26, 37, 9, 55, 28, 13, 18, 40, 6, 33, 1, 43, 25, 11, 51, 7, 62, 43, 18, 37, 3, 57, 45, 9, 38, 58, 5, 52, 27, 7, 17, 53, 5, 57, 37, 2, 63, 9, 22, 15, 11, 38, 25, 45, 35, 0, 28, 10, 41, 30, 50, 8, 31, 57 },
+  { 49, 33, 16, 38, 1, 42, 51, 34, 53, 14, 28, 49, 30, 56, 36, 23, 43, 20, 38, 56, 22, 45, 28, 0, 62, 35, 26, 44, 11, 19, 52, 35, 44, 15, 30, 38, 10, 31, 40, 4, 46, 50, 20, 40, 27, 44, 51, 14, 56, 53, 19, 59, 7, 29, 41, 19, 35, 25, 8, 52, 22, 44, 13, 53, 50, 32, 61, 24, 56, 25, 63, 0, 45, 57, 33, 59, 16, 46, 4, 62, 50, 11, 60, 37, 52, 19, 55, 29, 37, 46, 13, 26, 48, 10, 50, 34, 21, 63, 26, 13, 42, 33, 22, 55, 35, 28, 43, 15, 24, 51, 27, 34, 46, 49, 58, 3, 52, 9, 57, 19, 48, 55, 3, 35, 12, 45, 24, 3 },
+  { 41, 11, 56, 28, 18, 31, 22, 10, 37, 6, 47, 13, 3, 41, 9, 46, 0, 48, 29, 6, 34, 10, 55, 37, 20, 8, 49, 3, 41, 59, 14, 25, 0, 63, 19, 47, 27, 51, 17, 57, 23, 10, 61, 6, 54, 3, 38, 31, 0, 22, 34, 43, 20, 55, 31, 0, 49, 63, 29, 38, 3, 62, 28, 40, 0, 22, 14, 35, 2, 48, 15, 43, 23, 14, 3, 29, 49, 20, 39, 34, 0, 44, 29, 9, 15, 47, 5, 42, 0, 31, 58, 5, 31, 61, 23, 15, 0, 47, 19, 50, 24, 3, 59, 11, 44, 0, 31, 59, 6, 42, 17, 60, 0, 39, 20, 31, 43, 17, 29, 40, 12, 25, 60, 22, 52, 15, 63, 29 },
+  { 20, 52, 8, 44, 62, 4, 59, 49, 17, 63, 21, 39, 60, 18, 52, 27, 33, 59, 14, 51, 59, 43, 24, 5, 51, 30, 57, 17, 32, 5, 37, 56, 48, 34, 42, 3, 60, 5, 36, 13, 43, 37, 18, 34, 25, 12, 59, 24, 47, 36, 11, 50, 3, 38, 9, 58, 16, 5, 43, 18, 47, 10, 37, 18, 59, 46, 29, 52, 40, 12, 34, 28, 56, 36, 53, 7, 43, 8, 24, 52, 26, 17, 56, 43, 24, 32, 63, 20, 57, 16, 22, 52, 36, 8, 41, 56, 29, 32, 54, 7, 35, 57, 14, 48, 20, 62, 13, 39, 53, 29, 8, 45, 13, 29, 7, 61, 14, 54, 6, 63, 38, 32, 18, 43, 2, 39, 6, 47 },
+  { 0, 58, 23, 35, 13, 46, 12, 39, 0, 31, 55, 24, 5, 35, 15, 61, 17, 5, 39, 25, 18, 2, 50, 33, 41, 13, 39, 23, 62, 46, 29, 12, 22, 8, 56, 25, 20, 49, 32, 62, 0, 56, 11, 46, 63, 42, 9, 16, 55, 5, 60, 15, 62, 26, 45, 21, 36, 51, 13, 57, 31, 24, 55, 6, 35, 9, 57, 5, 20, 60, 7, 51, 5, 19, 40, 25, 61, 32, 56, 12, 36, 48, 21, 2, 58, 12, 39, 28, 9, 50, 40, 12, 44, 18, 25, 49, 6, 38, 11, 62, 18, 46, 30, 9, 40, 25, 49, 19, 10, 36, 55, 22, 33, 52, 41, 18, 37, 27, 49, 21, 2, 46, 7, 53, 33, 61, 27, 35 },
+  { 41, 31, 5, 39, 51, 26, 33, 57, 27, 41, 9, 44, 54, 29, 48, 7, 44, 36, 57, 10, 31, 63, 16, 45, 11, 60, 1, 47, 7, 20, 43, 3, 58, 36, 13, 52, 39, 7, 15, 28, 22, 48, 30, 21, 1, 29, 49, 44, 27, 17, 40, 30, 24, 42, 12, 53, 33, 7, 47, 20, 1, 42, 11, 49, 25, 43, 17, 32, 45, 27, 41, 21, 31, 62, 11, 49, 2, 15, 42, 5, 63, 7, 41, 27, 49, 6, 54, 23, 46, 34, 2, 28, 54, 3, 59, 12, 46, 17, 42, 28, 40, 1, 37, 51, 5, 55, 2, 34, 47, 16, 3, 62, 47, 5, 23, 56, 1, 44, 12, 34, 51, 16, 57, 11, 25, 17, 54, 13 },
+  { 60, 26, 55, 18, 3, 60, 20, 6, 52, 15, 50, 19, 32, 11, 23, 53, 26, 21, 1, 47, 42, 27, 8, 58, 21, 27, 53, 36, 26, 54, 31, 50, 17, 30, 45, 1, 29, 59, 44, 53, 41, 4, 35, 58, 51, 19, 32, 4, 52, 34, 48, 8, 51, 5, 56, 2, 25, 61, 27, 38, 54, 27, 62, 21, 51, 1, 39, 62, 10, 50, 1, 58, 13, 47, 38, 18, 35, 54, 22, 51, 30, 19, 59, 34, 14, 32, 44, 4, 60, 15, 52, 62, 20, 43, 30, 35, 21, 60, 4, 52, 12, 24, 61, 18, 30, 42, 23, 61, 25, 50, 27, 38, 11, 59, 12, 35, 50, 30, 59, 24, 8, 42, 28, 37, 48, 9, 44, 21 },
+  { 10, 47, 15, 50, 30, 43, 8, 45, 29, 2, 36, 59, 1, 58, 41, 3, 63, 31, 54, 20, 13, 55, 35, 38, 4, 44, 15, 9, 61, 2, 14, 38, 61, 10, 23, 54, 18, 12, 24, 2, 14, 55, 16, 8, 38, 14, 41, 60, 10, 23, 1, 58, 32, 17, 28, 37, 41, 15, 3, 60, 15, 33, 4, 36, 16, 59, 28, 14, 23, 55, 37, 18, 44, 28, 2, 57, 30, 10, 27, 46, 14, 38, 3, 53, 21, 61, 17, 35, 10, 41, 26, 7, 33, 9, 57, 1, 53, 37, 26, 20, 56, 48, 9, 33, 58, 16, 37, 7, 45, 1, 57, 15, 32, 26, 42, 23, 7, 20, 4, 54, 31, 62, 22, 1, 59, 30, 4, 51 },
+  { 36, 2, 38, 11, 24, 36, 54, 22, 62, 47, 25, 8, 28, 45, 16, 38, 12, 43, 9, 37, 49, 3, 23, 52, 18, 30, 50, 33, 19, 42, 49, 26, 6, 40, 47, 35, 63, 38, 50, 33, 60, 26, 36, 47, 24, 57, 6, 26, 39, 63, 19, 44, 14, 46, 61, 9, 50, 30, 45, 23, 10, 50, 44, 8, 31, 54, 6, 46, 36, 4, 30, 54, 8, 52, 22, 41, 4, 60, 40, 0, 58, 24, 45, 10, 37, 1, 48, 30, 56, 17, 38, 48, 24, 47, 19, 39, 14, 8, 45, 32, 2, 34, 27, 44, 4, 52, 11, 56, 31, 21, 40, 19, 44, 51, 2, 63, 46, 58, 36, 43, 14, 5, 50, 38, 14, 56, 40, 23 },
+  { 61, 46, 32, 63, 54, 1, 14, 34, 12, 40, 18, 49, 37, 10, 61, 30, 51, 24, 60, 7, 29, 40, 62, 11, 46, 58, 6, 56, 24, 10, 34, 52, 21, 59, 16, 3, 27, 5, 20, 46, 9, 40, 7, 62, 2, 30, 53, 15, 48, 10, 28, 35, 54, 6, 21, 34, 18, 55, 7, 40, 57, 19, 26, 60, 41, 13, 24, 51, 19, 61, 9, 25, 34, 15, 63, 11, 45, 17, 20, 47, 33, 8, 31, 62, 43, 26, 53, 7, 24, 59, 0, 13, 55, 4, 62, 27, 51, 31, 63, 15, 58, 7, 54, 14, 46, 22, 28, 43, 12, 63, 8, 54, 5, 17, 39, 33, 15, 10, 27, 17, 47, 34, 19, 45, 27, 12, 33, 17 },
+  { 5, 28, 21, 7, 17, 48, 42, 58, 23, 4, 63, 14, 55, 21, 34, 5, 19, 0, 45, 17, 52, 15, 25, 32, 0, 22, 40, 13, 45, 62, 18, 0, 43, 11, 33, 55, 30, 42, 57, 19, 51, 31, 22, 43, 18, 45, 34, 0, 43, 31, 56, 3, 23, 40, 59, 0, 44, 13, 48, 35, 2, 32, 46, 0, 21, 48, 35, 3, 40, 32, 43, 59, 0, 48, 33, 26, 53, 36, 55, 12, 51, 16, 55, 5, 18, 29, 11, 39, 51, 19, 45, 31, 42, 21, 35, 6, 22, 47, 10, 38, 23, 50, 20, 36, 0, 60, 38, 4, 50, 35, 48, 34, 24, 57, 9, 53, 28, 48, 61, 0, 56, 24, 53, 3, 63, 6, 42, 57 },
+  { 13, 53, 45, 40, 58, 27, 6, 16, 38, 51, 33, 30, 43, 2, 47, 56, 40, 50, 33, 57, 27, 5, 47, 42, 60, 36, 16, 54, 28, 4, 37, 57, 28, 51, 22, 8, 45, 14, 6, 39, 0, 54, 11, 59, 28, 12, 50, 21, 61, 13, 19, 38, 49, 11, 25, 37, 58, 29, 22, 63, 14, 56, 12, 53, 30, 63, 9, 57, 26, 12, 47, 16, 23, 39, 50, 6, 31, 2, 25, 6, 28, 41, 36, 22, 50, 57, 42, 3, 34, 8, 28, 61, 11, 50, 16, 54, 41, 0, 55, 43, 5, 29, 41, 63, 25, 16, 53, 18, 26, 10, 21, 0, 61, 30, 41, 22, 3, 38, 20, 39, 29, 8, 41, 16, 36, 52, 22, 19 },
+  { 55, 34, 0, 25, 10, 32, 56, 44, 28, 0, 57, 7, 26, 53, 23, 8, 13, 35, 22, 12, 36, 60, 20, 8, 14, 29, 48, 2, 41, 49, 23, 13, 39, 7, 48, 58, 25, 53, 34, 62, 28, 16, 48, 4, 37, 56, 27, 5, 36, 52, 46, 7, 62, 33, 52, 11, 17, 53, 5, 28, 41, 24, 38, 17, 5, 39, 20, 45, 15, 56, 5, 38, 60, 8, 14, 57, 21, 48, 62, 39, 59, 13, 1, 60, 9, 32, 16, 63, 44, 25, 52, 15, 36, 2, 60, 29, 12, 33, 25, 17, 59, 45, 13, 8, 49, 32, 6, 40, 59, 29, 45, 37, 13, 47, 6, 55, 30, 45, 9, 52, 13, 59, 25, 47, 32, 1, 49, 30 },
+  { 9, 39, 14, 61, 49, 37, 3, 20, 50, 13, 41, 19, 46, 17, 38, 59, 28, 62, 4, 44, 54, 1, 34, 51, 55, 7, 63, 32, 21, 8, 56, 31, 62, 19, 36, 1, 41, 17, 24, 12, 42, 35, 25, 52, 20, 8, 44, 59, 25, 2, 22, 42, 16, 29, 4, 46, 20, 36, 43, 9, 51, 8, 49, 26, 58, 33, 54, 1, 37, 29, 52, 20, 27, 45, 19, 35, 42, 16, 10, 32, 20, 49, 46, 27, 40, 4, 47, 22, 13, 55, 4, 47, 26, 44, 23, 40, 58, 19, 48, 13, 31, 2, 57, 34, 42, 19, 61, 32, 14, 55, 5, 51, 26, 19, 58, 16, 49, 14, 62, 5, 33, 44, 21, 7, 60, 26, 11, 41 },
+  { 62, 24, 47, 29, 8, 19, 53, 11, 60, 24, 32, 61, 4, 55, 31, 2, 49, 16, 39, 9, 31, 24, 43, 17, 26, 38, 11, 25, 58, 43, 12, 35, 3, 46, 15, 32, 63, 4, 49, 56, 2, 60, 10, 32, 63, 17, 39, 12, 55, 30, 57, 9, 48, 55, 39, 24, 60, 2, 58, 31, 19, 61, 34, 3, 42, 11, 22, 46, 7, 61, 10, 42, 3, 55, 32, 1, 58, 28, 44, 54, 4, 34, 23, 15, 56, 20, 37, 58, 6, 30, 38, 18, 63, 9, 32, 5, 51, 3, 62, 37, 52, 18, 39, 23, 3, 51, 9, 47, 1, 23, 43, 15, 60, 35, 11, 40, 1, 36, 31, 26, 57, 2, 37, 54, 18, 44, 58, 16 },
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+  { 0, 56, 8, 53, 14, 31, 61, 20, 55, 28, 62, 18, 35, 60, 25, 57, 7, 23, 39, 54, 47, 17, 43, 0, 40, 59, 29, 2, 56, 10, 37, 5, 43, 11, 29, 52, 1, 23, 54, 41, 59, 30, 55, 1, 62, 15, 33, 4, 43, 10, 47, 39, 1, 31, 40, 60, 49, 33, 7, 55, 26, 50, 31, 61, 8, 18, 21, 32, 44, 1, 25, 47, 18, 36, 30, 23, 59, 7, 40, 59, 27, 19, 38, 32, 44, 54, 40, 17, 38, 60, 27, 6, 35, 55, 10, 14, 44, 5, 50, 17, 38, 26, 42, 50, 18, 3, 44, 52, 2, 49, 7, 52, 15, 46, 62, 39, 55, 10, 31, 48, 3, 58, 33, 18, 61, 34, 13, 59 },
+  { 39, 27, 63, 20, 35, 41, 4, 45, 26, 5, 38, 13, 44, 2, 50, 17, 37, 52, 2, 13, 28, 58, 24, 51, 21, 8, 34, 48, 27, 42, 18, 51, 31, 56, 5, 36, 38, 44, 4, 17, 26, 11, 38, 23, 42, 8, 56, 39, 24, 51, 5, 56, 21, 59, 14, 6, 18, 42, 22, 35, 16, 37, 3, 25, 39, 46, 63, 5, 50, 17, 58, 8, 55, 3, 50, 12, 43, 17, 47, 2, 51, 9, 62, 12, 1, 35, 13, 50, 1, 37, 12, 51, 19, 29, 46, 59, 22, 58, 33, 45, 22, 60, 10, 32, 61, 39, 8, 33, 25, 36, 20, 60, 38, 4, 21, 5, 28, 45, 12, 18, 42, 11, 49, 1, 27, 40, 6, 30 },
+  { 24, 16, 42, 1, 50, 10, 48, 17, 33, 43, 24, 48, 21, 55, 31, 42, 10, 21, 63, 35, 49, 6, 33, 13, 41, 53, 10, 20, 60, 6, 53, 26, 12, 41, 22, 60, 14, 28, 63, 33, 49, 3, 45, 16, 48, 26, 14, 46, 18, 30, 35, 26, 8, 50, 29, 51, 25, 57, 12, 47, 53, 9, 62, 20, 54, 2, 36, 15, 40, 28, 33, 13, 38, 24, 46, 1, 29, 56, 33, 20, 44, 24, 41, 26, 57, 20, 63, 8, 30, 55, 5, 41, 62, 8, 34, 2, 37, 10, 19, 6, 37, 1, 53, 23, 5, 27, 58, 22, 43, 12, 50, 26, 9, 34, 54, 32, 49, 1, 59, 37, 22, 46, 25, 36, 51, 15, 54, 46 },
+  { 52, 7, 45, 33, 26, 58, 14, 60, 7, 54, 3, 58, 8, 34, 14, 5, 59, 30, 18, 44, 8, 22, 48, 62, 3, 26, 55, 38, 23, 16, 39, 1, 62, 24, 49, 9, 53, 19, 46, 7, 19, 60, 31, 58, 2, 34, 53, 7, 59, 2, 62, 42, 46, 19, 36, 11, 44, 4, 38, 28, 1, 43, 32, 51, 12, 29, 56, 22, 52, 2, 62, 49, 22, 60, 14, 35, 63, 5, 25, 57, 14, 53, 4, 46, 18, 31, 42, 22, 47, 20, 58, 31, 16, 43, 23, 54, 30, 42, 52, 57, 29, 49, 30, 13, 45, 48, 16, 55, 6, 63, 1, 44, 14, 58, 19, 47, 15, 24, 51, 34, 6, 55, 5, 63, 20, 41, 21, 9 },
+  { 30, 62, 18, 55, 5, 23, 39, 29, 49, 30, 15, 36, 28, 46, 60, 25, 39, 46, 4, 32, 61, 40, 15, 30, 36, 45, 14, 2, 49, 33, 57, 45, 18, 32, 3, 45, 30, 2, 35, 52, 40, 27, 13, 21, 38, 63, 20, 28, 37, 23, 16, 10, 13, 55, 2, 62, 21, 32, 60, 17, 58, 23, 5, 40, 16, 48, 7, 45, 10, 26, 43, 19, 6, 31, 52, 21, 39, 16, 48, 9, 37, 28, 36, 55, 7, 48, 3, 59, 15, 45, 25, 1, 53, 13, 47, 7, 62, 15, 4, 25, 12, 41, 18, 60, 38, 11, 34, 19, 39, 31, 29, 56, 23, 42, 3, 27, 60, 41, 8, 16, 61, 29, 43, 9, 32, 2, 60, 34 },
+  { 3, 38, 13, 37, 52, 44, 2, 19, 12, 42, 63, 19, 40, 1, 20, 50, 12, 55, 15, 56, 27, 1, 54, 11, 57, 18, 32, 63, 44, 4, 29, 13, 37, 61, 35, 16, 42, 57, 12, 22, 6, 55, 43, 10, 50, 5, 44, 11, 48, 52, 34, 58, 28, 41, 38, 30, 7, 52, 11, 49, 30, 14, 45, 27, 59, 34, 21, 38, 32, 58, 11, 36, 56, 42, 9, 41, 3, 54, 31, 42, 0, 60, 16, 11, 39, 24, 52, 33, 6, 36, 10, 40, 32, 60, 26, 20, 39, 28, 47, 34, 63, 8, 54, 3, 24, 56, 0, 51, 13, 47, 16, 40, 7, 35, 52, 11, 36, 4, 57, 30, 39, 13, 18, 50, 58, 28, 12, 48 },
+  { 57, 24, 49, 21, 10, 31, 61, 36, 56, 0, 22, 53, 11, 56, 32, 7, 36, 27, 41, 9, 46, 19, 34, 42, 25, 7, 50, 9, 28, 21, 54, 8, 50, 7, 27, 59, 10, 25, 48, 62, 37, 0, 33, 58, 25, 18, 32, 61, 0, 15, 45, 5, 50, 3, 23, 55, 47, 17, 40, 6, 60, 34, 53, 8, 41, 0, 61, 13, 54, 4, 46, 28, 0, 17, 48, 27, 58, 13, 23, 61, 33, 21, 50, 30, 62, 8, 14, 29, 56, 27, 61, 49, 17, 2, 44, 11, 51, 0, 59, 17, 40, 20, 32, 47, 36, 21, 42, 28, 60, 4, 54, 10, 59, 17, 30, 62, 21, 43, 26, 48, 0, 56, 36, 25, 8, 44, 39, 17 },
+  { 10, 42, 4, 59, 27, 47, 8, 23, 51, 32, 45, 6, 37, 26, 48, 43, 62, 0, 21, 53, 38, 12, 51, 5, 60, 47, 24, 37, 59, 15, 35, 47, 22, 55, 0, 50, 21, 40, 6, 29, 15, 52, 24, 8, 41, 55, 13, 29, 40, 56, 24, 31, 19, 33, 61, 15, 0, 35, 24, 42, 21, 2, 19, 57, 24, 15, 30, 50, 20, 25, 40, 16, 57, 34, 61, 8, 29, 45, 6, 49, 11, 47, 2, 44, 19, 57, 38, 50, 12, 42, 21, 4, 35, 52, 28, 56, 23, 36, 13, 45, 4, 52, 27, 14, 6, 62, 9, 45, 21, 37, 25, 46, 33, 49, 0, 44, 7, 53, 13, 19, 53, 31, 3, 47, 15, 56, 22, 51 },
+  { 35, 28, 53, 32, 1, 16, 54, 40, 9, 17, 25, 58, 14, 59, 3, 22, 16, 51, 31, 5, 23, 58, 28, 17, 35, 20, 0, 42, 11, 52, 3, 31, 41, 17, 43, 13, 32, 54, 18, 60, 32, 45, 17, 49, 2, 36, 51, 22, 7, 36, 9, 63, 48, 12, 46, 26, 43, 28, 63, 13, 48, 37, 51, 33, 5, 47, 55, 9, 42, 63, 7, 51, 24, 12, 37, 19, 55, 34, 18, 38, 15, 28, 54, 34, 5, 43, 22, 0, 48, 14, 54, 24, 58, 9, 38, 5, 32, 55, 21, 30, 49, 9, 59, 43, 30, 51, 35, 26, 7, 53, 2, 22, 14, 27, 57, 18, 38, 24, 33, 45, 10, 41, 20, 60, 37, 5, 32, 0 },
+  { 63, 19, 15, 40, 62, 35, 14, 28, 46, 61, 4, 49, 35, 10, 29, 54, 33, 8, 45, 62, 37, 1, 43, 55, 10, 52, 61, 30, 19, 40, 25, 62, 11, 38, 27, 58, 36, 3, 46, 8, 39, 4, 62, 28, 47, 20, 4, 54, 47, 27, 43, 1, 21, 38, 8, 58, 10, 54, 4, 56, 9, 26, 12, 39, 60, 27, 18, 37, 1, 31, 35, 5, 45, 50, 2, 43, 26, 1, 59, 23, 56, 40, 7, 26, 58, 17, 32, 63, 25, 39, 7, 31, 45, 19, 63, 15, 48, 8, 37, 61, 16, 34, 1, 56, 18, 3, 15, 58, 49, 32, 63, 41, 55, 5, 40, 22, 50, 6, 59, 2, 63, 23, 52, 11, 26, 61, 44, 23 },
+  { 11, 56, 46, 6, 22, 43, 58, 3, 34, 21, 38, 30, 18, 44, 52, 13, 41, 57, 17, 28, 14, 49, 25, 7, 33, 39, 26, 6, 56, 48, 1, 20, 56, 5, 46, 9, 19, 51, 30, 25, 56, 21, 35, 14, 57, 42, 16, 33, 10, 57, 17, 59, 41, 25, 53, 37, 20, 40, 30, 18, 31, 62, 44, 22, 3, 44, 11, 48, 23, 53, 18, 60, 29, 22, 62, 15, 53, 47, 10, 41, 3, 19, 52, 36, 13, 46, 10, 35, 3, 61, 41, 16, 1, 50, 26, 42, 18, 46, 2, 25, 54, 20, 39, 23, 47, 31, 41, 12, 38, 17, 8, 19, 31, 48, 12, 61, 9, 54, 29, 35, 15, 38, 6, 43, 34, 14, 7, 47 },
+  { 39, 2, 33, 26, 53, 8, 18, 50, 41, 12, 53, 1, 63, 24, 19, 39, 2, 24, 47, 10, 60, 38, 19, 63, 48, 4, 15, 45, 32, 14, 60, 36, 29, 53, 23, 63, 34, 12, 61, 1, 43, 11, 53, 30, 1, 26, 60, 45, 23, 39, 3, 29, 12, 50, 4, 16, 51, 3, 45, 36, 50, 1, 16, 54, 35, 14, 57, 30, 58, 9, 46, 14, 41, 10, 32, 38, 4, 30, 21, 51, 32, 63, 25, 1, 60, 27, 53, 18, 51, 22, 28, 55, 34, 12, 40, 3, 60, 29, 57, 41, 6, 44, 11, 53, 8, 61, 24, 57, 1, 28, 44, 59, 36, 3, 34, 25, 41, 31, 16, 44, 22, 47, 28, 58, 1, 49, 54, 29 },
+  { 58, 25, 50, 13, 38, 30, 60, 24, 6, 57, 27, 42, 9, 45, 6, 61, 30, 50, 4, 34, 29, 3, 46, 13, 22, 42, 58, 28, 9, 39, 23, 44, 7, 15, 44, 2, 40, 15, 47, 41, 23, 37, 7, 59, 38, 11, 34, 6, 62, 14, 52, 35, 55, 19, 32, 61, 33, 24, 57, 6, 22, 59, 29, 7, 49, 25, 40, 3, 17, 39, 27, 52, 0, 55, 16, 57, 24, 61, 36, 6, 29, 12, 48, 39, 20, 44, 6, 40, 33, 5, 48, 10, 57, 36, 22, 51, 33, 9, 24, 12, 62, 29, 50, 35, 14, 43, 5, 33, 47, 52, 13, 23, 10, 51, 56, 16, 46, 1, 49, 4, 61, 9, 52, 18, 31, 21, 36, 17 },
+  { 19, 42, 9, 48, 2, 44, 11, 37, 48, 20, 33, 16, 55, 35, 49, 15, 37, 20, 59, 16, 53, 22, 56, 31, 50, 11, 34, 54, 16, 51, 4, 49, 33, 53, 21, 28, 56, 24, 31, 9, 52, 16, 48, 24, 44, 13, 51, 20, 31, 49, 18, 6, 34, 2, 44, 14, 47, 8, 15, 43, 13, 41, 33, 52, 20, 61, 7, 51, 34, 62, 4, 20, 36, 33, 43, 8, 46, 13, 53, 17, 45, 42, 9, 31, 52, 11, 30, 56, 13, 59, 17, 44, 27, 6, 62, 11, 43, 17, 49, 38, 26, 2, 16, 27, 58, 21, 54, 18, 26, 5, 35, 61, 43, 27, 7, 39, 14, 58, 37, 55, 20, 33, 13, 40, 62, 10, 55, 5 },
+  { 51, 14, 61, 29, 59, 20, 55, 31, 0, 49, 11, 60, 3, 26, 22, 56, 0, 40, 12, 43, 41, 8, 36, 0, 17, 57, 24, 2, 46, 26, 61, 18, 0, 38, 12, 59, 6, 49, 3, 57, 19, 63, 5, 33, 18, 54, 28, 56, 0, 43, 26, 46, 63, 27, 56, 22, 27, 54, 38, 28, 63, 24, 10, 45, 0, 31, 42, 21, 12, 25, 44, 49, 59, 6, 26, 50, 3, 34, 27, 59, 0, 35, 62, 16, 4, 58, 47, 0, 43, 24, 37, 2, 54, 20, 46, 31, 0, 56, 34, 5, 55, 45, 60, 37, 0, 40, 10, 38, 63, 46, 15, 20, 0, 53, 21, 62, 30, 11, 24, 27, 40, 0, 57, 26, 3, 45, 27, 35 },
+};
+
+#else
+#define DM_WIDTH 8
+#define DM_WIDTH_SHIFT 3
+#define DM_HEIGHT 8
+static const unsigned char DM[8][8] =
+{
+  { 0,  32, 8,  40, 2,  34, 10, 42 },
+  { 48, 16, 56, 24, 50, 18, 58, 26 },
+  { 12, 44, 4,  36, 14, 46, 6,  38 },
+  { 60, 28, 52, 20, 62, 30, 54, 22 },
+  { 3,  35, 11, 43, 1,  33, 9,  41 },
+  { 51, 19, 59, 27, 49, 17, 57, 25 },
+  { 15, 47, 7,  39, 13, 45, 5,  37 },
+  { 63, 31, 55, 23, 61, 29, 53, 21 }
+};
+#endif
+
+static guint32 *DM_565 = NULL;
+
+static void
+xlib_rgb_preprocess_dm_565 (void)
+{
+  int i;
+  guint32 dith;
+
+  if (DM_565 == NULL)
+    {
+      DM_565 = malloc(sizeof(guint32) * DM_WIDTH * DM_HEIGHT);
+      for (i = 0; i < DM_WIDTH * DM_HEIGHT; i++)
+	{
+	  dith = DM[0][i] >> 3;
+	  DM_565[i] = (dith << 20) | dith | (((7 - dith) >> 1) << 10);
+#ifdef VERBOSE
+	  printf ("%i %x %x\n", i, dith, DM_565[i]);
+#endif
+	}
+    }
+}
+
+static void
+xlib_rgb_convert_8_d666 (XImage *image,
+			int ax, int ay, int width, int height,
+			unsigned char *buf, int rowstride,
+			int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  int x, y;
+  int bpl;
+  unsigned char *obuf, *obptr;
+  unsigned char *bptr, *bp2;
+  int r, g, b;
+  const unsigned char *dmp;
+  int dith;
+
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + ax;
+  for (y = 0; y < height; y++)
+    {
+      dmp = DM[(y_align + y) & (DM_HEIGHT - 1)];
+      bp2 = bptr;
+      obptr = obuf;
+      for (x = 0; x < width; x++)
+	{
+	  r = *bp2++;
+	  g = *bp2++;
+	  b = *bp2++;
+	  dith = (dmp[(x_align + x) & (DM_WIDTH - 1)] << 2) | 7;
+	  r = ((r * 5) + dith) >> 8;
+	  g = ((g * 5) + (262 - dith)) >> 8;
+	  b = ((b * 5) + dith) >> 8;
+	  obptr[0] = colorcube_d[(r << 6) | (g << 3) | b];
+	  obptr++;
+	}
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+
+static void
+xlib_rgb_convert_8_d (XImage *image,
+		     int ax, int ay, int width, int height,
+		     unsigned char *buf, int rowstride,
+		     int x_align, int y_align,
+		     XlibRgbCmap *cmap)
+{
+  int x, y;
+  int bpl;
+  unsigned char *obuf, *obptr;
+  unsigned char *bptr, *bp2;
+  int r, g, b;
+  const unsigned char *dmp;
+  int dith;
+  int rs, gs, bs;
+
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  rs = image_info->nred_shades - 1;
+  gs = image_info->ngreen_shades - 1;
+  bs = image_info->nblue_shades - 1;
+  obuf = ((unsigned char *)image->data) + ay * bpl + ax;
+  for (y = 0; y < height; y++)
+    {
+      dmp = DM[(y_align + y) & (DM_HEIGHT - 1)];
+      bp2 = bptr;
+      obptr = obuf;
+      for (x = 0; x < width; x++)
+	{
+	  r = *bp2++;
+	  g = *bp2++;
+	  b = *bp2++;
+	  dith = (dmp[(x_align + x) & (DM_WIDTH - 1)] << 2) | 7;
+	  r = ((r * rs) + dith) >> 8;
+	  g = ((g * gs) + (262 - dith)) >> 8;
+	  b = ((b * bs) + dith) >> 8;
+	  obptr[0] = colorcube_d[(r << 6) | (g << 3) | b];
+	  obptr++;
+	}
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+
+static void
+xlib_rgb_convert_8_indexed (XImage *image,
+			   int ax, int ay, int width, int height,
+			   unsigned char *buf, int rowstride,
+			   int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  int x, y;
+  int bpl;
+  unsigned char *obuf, *obptr;
+  unsigned char *bptr, *bp2;
+  unsigned char c;
+  unsigned char *lut;
+
+  lut = cmap->lut;
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + ax;
+  for (y = 0; y < height; y++)
+    {
+      bp2 = bptr;
+      obptr = obuf;
+      for (x = 0; x < width; x++)
+	{
+	  c = *bp2++;
+	  obptr[0] = lut[c];
+	  obptr++;
+	}
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+
+static void
+xlib_rgb_convert_gray8 (XImage *image,
+		       int ax, int ay, int width, int height,
+		       unsigned char *buf, int rowstride,
+		       int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  int x, y;
+  int bpl;
+  unsigned char *obuf, *obptr;
+  unsigned char *bptr, *bp2;
+  int r, g, b;
+
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + ax;
+  for (y = 0; y < height; y++)
+    {
+      bp2 = bptr;
+      obptr = obuf;
+      for (x = 0; x < width; x++)
+	{
+	  r = *bp2++;
+	  g = *bp2++;
+	  b = *bp2++;
+	  obptr[0] = (g + ((b + r) >> 1)) >> 1;
+	  obptr++;
+	}
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+
+static void
+xlib_rgb_convert_gray8_gray (XImage *image,
+			    int ax, int ay, int width, int height,
+			    unsigned char *buf, int rowstride,
+			    int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  int y;
+  int bpl;
+  unsigned char *obuf;
+  unsigned char *bptr;
+
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + ax;
+  for (y = 0; y < height; y++)
+    {
+      memcpy (obuf, bptr, (unsigned int)width);
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+
+#if G_BYTE_ORDER == G_LITTLE_ENDIAN
+#define HAIRY_CONVERT_565
+#endif
+
+#ifdef HAIRY_CONVERT_565
+/* Render a 24-bit RGB image in buf into the GdkImage, without dithering.
+   This assumes native byte ordering - what should really be done is to
+   check whether static_image->byte_order is consistent with the _ENDIAN
+   config flag, and if not, use a different function.
+
+   This one is even faster than the one below - its inner loop loads 3
+   words (i.e. 4 24-bit pixels), does a lot of shifting and masking,
+   then writes 2 words. */
+static void
+xlib_rgb_convert_565 (XImage *image,
+		     int ax, int ay, int width, int height,
+		     unsigned char *buf, int rowstride,
+		     int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  int x, y;
+  unsigned char *obuf, *obptr;
+  int bpl;
+  unsigned char *bptr, *bp2;
+  unsigned char r, g, b;
+
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + ax * 2;
+  for (y = 0; y < height; y++)
+    {
+      bp2 = bptr;
+      obptr = obuf;
+      if (((unsigned long)obuf | (unsigned long) bp2) & 3)
+	{
+	  for (x = 0; x < width; x++)
+	    {
+	      r = *bp2++;
+	      g = *bp2++;
+	      b = *bp2++;
+	      ((guint16 *)obptr)[0] = ((r & 0xf8) << 8) |
+		((g & 0xfc) << 3) |
+		(b >> 3);
+	      obptr += 2;
+	    }
+	}
+      else
+	{
+	  for (x = 0; x < width - 3; x += 4)
+	    {
+	      guint32 r1b0g0r0;
+	      guint32 g2r2b1g1;
+	      guint32 b3g3r3b2;
+
+	      r1b0g0r0 = ((guint32 *)bp2)[0];
+	      g2r2b1g1 = ((guint32 *)bp2)[1];
+	      b3g3r3b2 = ((guint32 *)bp2)[2];
+	      ((guint32 *)obptr)[0] =
+		((r1b0g0r0 & 0xf8) << 8) |
+		((r1b0g0r0 & 0xfc00) >> 5) |
+		((r1b0g0r0 & 0xf80000) >> 19) |
+		(r1b0g0r0 & 0xf8000000) |
+		((g2r2b1g1 & 0xfc) << 19) |
+		((g2r2b1g1 & 0xf800) << 5);
+	      ((guint32 *)obptr)[1] =
+		((g2r2b1g1 & 0xf80000) >> 8) |
+		((g2r2b1g1 & 0xfc000000) >> 21) |
+		((b3g3r3b2 & 0xf8) >> 3) |
+		((b3g3r3b2 & 0xf800) << 16) |
+		((b3g3r3b2 & 0xfc0000) << 3) |
+		((b3g3r3b2 & 0xf8000000) >> 11);
+	      bp2 += 12;
+	      obptr += 8;
+	    }
+	  for (; x < width; x++)
+	    {
+	      r = *bp2++;
+	      g = *bp2++;
+	      b = *bp2++;
+	      ((guint16 *)obptr)[0] = ((r & 0xf8) << 8) |
+		((g & 0xfc) << 3) |
+		(b >> 3);
+	      obptr += 2;
+	    }
+	}
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+#else
+/* Render a 24-bit RGB image in buf into the GdkImage, without dithering.
+   This assumes native byte ordering - what should really be done is to
+   check whether static_image->byte_order is consistent with the _ENDIAN
+   config flag, and if not, use a different function.
+
+   This routine is faster than the one included with Gtk 1.0 for a number
+   of reasons:
+
+   1. Shifting instead of lookup tables (less memory traffic).
+
+   2. Much less register pressure, especially because shifts are
+   in the code.
+
+   3. A memcpy is avoided (i.e. the transfer function).
+
+   4. On big-endian architectures, byte swapping is avoided.
+
+   That said, it wouldn't be hard to make it even faster - just make an
+   inner loop that reads 3 words (i.e. 4 24-bit pixels), does a lot of
+   shifting and masking, then writes 2 words.
+*/
+static void
+xlib_rgb_convert_565 (XImage *image,
+		     int ax, int ay, int width, int height,
+		     unsigned char *buf, int rowstride,
+		     int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  int x, y;
+  unsigned char *obuf;
+  int bpl;
+  unsigned char *bptr, *bp2;
+  unsigned char r, g, b;
+
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + ax * 2;
+  for (y = 0; y < height; y++)
+    {
+      bp2 = bptr;
+      for (x = 0; x < width; x++)
+	{
+	  r = *bp2++;
+	  g = *bp2++;
+	  b = *bp2++;
+	  ((unsigned short *)obuf)[x] = ((r & 0xf8) << 8) |
+	    ((g & 0xfc) << 3) |
+	    (b >> 3);
+	}
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+#endif
+
+#ifdef HAIRY_CONVERT_565
+static void
+xlib_rgb_convert_565_gray (XImage *image,
+			  int ax, int ay, int width, int height,
+			  unsigned char *buf, int rowstride,
+			  int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  int x, y;
+  unsigned char *obuf, *obptr;
+  int bpl;
+  unsigned char *bptr, *bp2;
+  unsigned char g;
+
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + ax * 2;
+  for (y = 0; y < height; y++)
+    {
+      bp2 = bptr;
+      obptr = obuf;
+      if (((unsigned long)obuf | (unsigned long) bp2) & 3)
+	{
+	  for (x = 0; x < width; x++)
+	    {
+	      g = *bp2++;
+	      ((guint16 *)obptr)[0] = ((g & 0xf8) << 8) |
+		((g & 0xfc) << 3) |
+		(g >> 3);
+	      obptr += 2;
+	    }
+	}
+      else
+	{
+	  for (x = 0; x < width - 3; x += 4)
+	    {
+	      guint32 g3g2g1g0;
+
+	      g3g2g1g0 = ((guint32 *)bp2)[0];
+	      ((guint32 *)obptr)[0] =
+		((g3g2g1g0 & 0xf8) << 8) |
+		((g3g2g1g0 & 0xfc) << 3) |
+		((g3g2g1g0 & 0xf8) >> 3) |
+		(g3g2g1g0 & 0xf800) << 16 |
+		((g3g2g1g0 & 0xfc00) << 11) |
+		((g3g2g1g0 & 0xf800) << 5);
+	      ((guint32 *)obptr)[1] =
+		((g3g2g1g0 & 0xf80000) >> 8) |
+		((g3g2g1g0 & 0xfc0000) >> 13) |
+		((g3g2g1g0 & 0xf80000) >> 19) |
+		(g3g2g1g0 & 0xf8000000) |
+		((g3g2g1g0 & 0xfc000000) >> 5) |
+		((g3g2g1g0 & 0xf8000000) >> 11);
+	      bp2 += 4;
+	      obptr += 8;
+	    }
+	  for (; x < width; x++)
+	    {
+	      g = *bp2++;
+	      ((guint16 *)obptr)[0] = ((g & 0xf8) << 8) |
+		((g & 0xfc) << 3) |
+		(g >> 3);
+	      obptr += 2;
+	    }
+	}
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+#else
+static void
+xlib_rgb_convert_565_gray (XImage *image,
+			  int ax, int ay, int width, int height,
+			  unsigned char *buf, int rowstride,
+			  int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  int x, y;
+  unsigned char *obuf;
+  int bpl;
+  unsigned char *bptr, *bp2;
+  unsigned char g;
+
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + ax * 2;
+  for (y = 0; y < height; y++)
+    {
+      bp2 = bptr;
+      for (x = 0; x < width; x++)
+	{
+	  g = *bp2++;
+	  ((guint16 *)obuf)[x] = ((g & 0xf8) << 8) |
+	    ((g & 0xfc) << 3) |
+	    (g >> 3);
+	}
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+#endif
+
+static void
+xlib_rgb_convert_565_br (XImage *image,
+			 int ax, int ay, int width, int height,
+			 unsigned char *buf, int rowstride,
+			 int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  int x, y;
+  unsigned char *obuf;
+  int bpl;
+  unsigned char *bptr, *bp2;
+  unsigned char r, g, b;
+
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + ax * 2;
+  for (y = 0; y < height; y++)
+    {
+      bp2 = bptr;
+      for (x = 0; x < width; x++)
+	{
+	  r = *bp2++;
+	  g = *bp2++;
+	  b = *bp2++;
+	  /* final word is:
+	     g4 g3 g2 b7 b6 b5 b4 b3  r7 r6 r5 r4 r3 g7 g6 g5
+	   */
+	  ((unsigned short *)obuf)[x] = (r & 0xf8) |
+	    ((g & 0xe0) >> 5) |
+	    ((g & 0x1c) << 11) |
+	    ((b & 0xf8) << 5);
+	}
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+
+/* Thanks to Ray Lehtiniemi for a patch that resulted in a ~25% speedup
+   in this mode. */
+#ifdef HAIRY_CONVERT_565
+static void
+xlib_rgb_convert_565_d (XImage *image,
+		     int ax, int ay, int width, int height,
+		     unsigned char *buf, int rowstride,
+		     int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  /* Now this is what I'd call some highly tuned code! */
+  int x, y;
+  unsigned char *obuf, *obptr;
+  int bpl;
+  unsigned char *bptr, *bp2;
+
+  width += x_align;
+  height += y_align;
+  
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + ax * 2;
+  for (y = y_align; y < height; y++)
+    {
+      guint32 *dmp = DM_565 + ((y & (DM_HEIGHT - 1)) << DM_WIDTH_SHIFT);
+      bp2 = bptr;
+      obptr = obuf;
+      if (((unsigned long)obuf | (unsigned long) bp2) & 3)
+	{
+	  for (x = x_align; x < width; x++)
+	    {
+	      gint32 rgb = *bp2++ << 20;
+	      rgb += *bp2++ << 10;
+	      rgb += *bp2++;
+	      rgb += dmp[x & (DM_WIDTH - 1)];
+	      rgb += 0x10040100
+		- ((rgb & 0x1e0001e0) >> 5)
+		- ((rgb & 0x00070000) >> 6);
+
+	      ((unsigned short *)obptr)[0] =
+		((rgb & 0x0f800000) >> 12) |
+		((rgb & 0x0003f000) >> 7) |
+		((rgb & 0x000000f8) >> 3);
+	      obptr += 2;
+	    }
+	}
+      else
+	{
+	  for (x = x_align; x < width - 3; x += 4)
+	    {
+	      guint32 r1b0g0r0;
+	      guint32 g2r2b1g1;
+	      guint32 b3g3r3b2;
+	      guint32 rgb02, rgb13;
+
+	      r1b0g0r0 = ((guint32 *)bp2)[0];
+	      g2r2b1g1 = ((guint32 *)bp2)[1];
+	      b3g3r3b2 = ((guint32 *)bp2)[2];
+	      rgb02 =
+		((r1b0g0r0 & 0xff) << 20) +
+		((r1b0g0r0 & 0xff00) << 2) +
+		((r1b0g0r0 & 0xff0000) >> 16) +
+		dmp[x & (DM_WIDTH - 1)];
+	      rgb02 += 0x10040100
+		- ((rgb02 & 0x1e0001e0) >> 5)
+		- ((rgb02 & 0x00070000) >> 6);
+	      rgb13 =
+		((r1b0g0r0 & 0xff000000) >> 4) +
+		((g2r2b1g1 & 0xff) << 10) +
+		((g2r2b1g1 & 0xff00) >> 8) +
+		dmp[(x + 1) & (DM_WIDTH - 1)];
+	      rgb13 += 0x10040100
+		- ((rgb13 & 0x1e0001e0) >> 5)
+		- ((rgb13 & 0x00070000) >> 6);
+	      ((guint32 *)obptr)[0] =
+		((rgb02 & 0x0f800000) >> 12) |
+		((rgb02 & 0x0003f000) >> 7) |
+		((rgb02 & 0x000000f8) >> 3) |
+		((rgb13 & 0x0f800000) << 4) |
+		((rgb13 & 0x0003f000) << 9) |
+		((rgb13 & 0x000000f8) << 13);
+	      rgb02 =
+		((g2r2b1g1 & 0xff0000) << 4) +
+		((g2r2b1g1 & 0xff000000) >> 14) +
+		(b3g3r3b2 & 0xff) +
+		dmp[(x + 2) & (DM_WIDTH - 1)];
+	      rgb02 += 0x10040100
+		- ((rgb02 & 0x1e0001e0) >> 5)
+		- ((rgb02 & 0x00070000) >> 6);
+	      rgb13 =
+		((b3g3r3b2 & 0xff00) << 12) +
+		((b3g3r3b2 & 0xff0000) >> 6) +
+		((b3g3r3b2 & 0xff000000) >> 24) +
+		dmp[(x + 3) & (DM_WIDTH - 1)];
+	      rgb13 += 0x10040100
+		- ((rgb13 & 0x1e0001e0) >> 5)
+		- ((rgb13 & 0x00070000) >> 6);
+	      ((guint32 *)obptr)[1] =
+		((rgb02 & 0x0f800000) >> 12) |
+		((rgb02 & 0x0003f000) >> 7) |
+		((rgb02 & 0x000000f8) >> 3) |
+		((rgb13 & 0x0f800000) << 4) |
+		((rgb13 & 0x0003f000) << 9) |
+		((rgb13 & 0x000000f8) << 13);
+	      bp2 += 12;
+	      obptr += 8;
+	    }
+	  for (; x < width; x++)
+	    {
+	      gint32 rgb = *bp2++ << 20;
+	      rgb += *bp2++ << 10;
+	      rgb += *bp2++;
+	      rgb += dmp[x & (DM_WIDTH - 1)];
+	      rgb += 0x10040100
+		- ((rgb & 0x1e0001e0) >> 5)
+		- ((rgb & 0x00070000) >> 6);
+
+	      ((unsigned short *)obptr)[0] =
+		((rgb & 0x0f800000) >> 12) |
+		((rgb & 0x0003f000) >> 7) |
+		((rgb & 0x000000f8) >> 3);
+	      obptr += 2;
+	    }
+	}
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+#else
+static void
+xlib_rgb_convert_565_d (XImage *image,
+                       int ax, int ay, int width, int height,
+                       unsigned char *buf, int rowstride,
+                       int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  int x, y;
+  unsigned char *obuf;
+  int bpl;
+  unsigned char *bptr;
+
+  width += x_align;
+  height += y_align;
+  
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + (ax - x_align) * 2;
+
+  for (y = y_align; y < height; y++)
+    {
+      guint32 *dmp = DM_565 + ((y & (DM_HEIGHT - 1)) << DM_WIDTH_SHIFT);
+      unsigned char *bp2 = bptr;
+
+      for (x = x_align; x < width; x++)
+        {
+          gint32 rgb = *bp2++ << 20;
+          rgb += *bp2++ << 10;
+          rgb += *bp2++;
+	  rgb += dmp[x & (DM_WIDTH - 1)];
+          rgb += 0x10040100
+            - ((rgb & 0x1e0001e0) >> 5)
+            - ((rgb & 0x00070000) >> 6);
+
+          ((unsigned short *)obuf)[x] =
+            ((rgb & 0x0f800000) >> 12) |
+            ((rgb & 0x0003f000) >> 7) |
+            ((rgb & 0x000000f8) >> 3);
+        }
+
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+#endif
+
+static void
+xlib_rgb_convert_555 (XImage *image,
+		     int ax, int ay, int width, int height,
+		     unsigned char *buf, int rowstride,
+		     int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  int x, y;
+  unsigned char *obuf;
+  int bpl;
+  unsigned char *bptr, *bp2;
+  unsigned char r, g, b;
+
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + ax * 2;
+  for (y = 0; y < height; y++)
+    {
+      bp2 = bptr;
+      for (x = 0; x < width; x++)
+	{
+	  r = *bp2++;
+	  g = *bp2++;
+	  b = *bp2++;
+	  ((unsigned short *)obuf)[x] = ((r & 0xf8) << 7) |
+	    ((g & 0xf8) << 2) |
+	    (b >> 3);
+	}
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+
+static void
+xlib_rgb_convert_555_br (XImage *image,
+			int ax, int ay, int width, int height,
+			unsigned char *buf, int rowstride,
+			int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  int x, y;
+  unsigned char *obuf;
+  int bpl;
+  unsigned char *bptr, *bp2;
+  unsigned char r, g, b;
+
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + ax * 2;
+  for (y = 0; y < height; y++)
+    {
+      bp2 = bptr;
+      for (x = 0; x < width; x++)
+	{
+	  r = *bp2++;
+	  g = *bp2++;
+	  b = *bp2++;
+	  /* final word is:
+	     g5 g4 g3 b7 b6 b5 b4 b3  0 r7 r6 r5 r4 r3 g7 g6
+	   */
+	  ((unsigned short *)obuf)[x] = ((r & 0xf8) >> 1) |
+	    ((g & 0xc0) >> 6) |
+	    ((g & 0x18) << 10) |
+	    ((b & 0xf8) << 5);
+	}
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+
+static void
+xlib_rgb_convert_888_msb (XImage *image,
+			 int ax, int ay, int width, int height,
+			 unsigned char *buf, int rowstride,
+			 int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  int y;
+  unsigned char *obuf;
+  int bpl;
+  unsigned char *bptr;
+
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + ax * 3;
+  for (y = 0; y < height; y++)
+    {
+      memcpy (obuf, bptr, (unsigned int)(width + width + width));
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+
+/* todo: optimize this */
+#if G_BYTE_ORDER == G_LITTLE_ENDIAN
+#define HAIRY_CONVERT_888
+#endif
+
+#ifdef HAIRY_CONVERT_888
+static void
+xlib_rgb_convert_888_lsb (XImage *image,
+			  int ax, int ay, int width, int height,
+			  unsigned char *buf, int rowstride,
+			  int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  int x, y;
+  unsigned char *obuf, *obptr;
+  int bpl;
+  unsigned char *bptr, *bp2;
+  int r, g, b;
+
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + ax * 3;
+  for (y = 0; y < height; y++)
+    {
+      bp2 = bptr;
+      obptr = obuf;
+      if (((unsigned long)obuf | (unsigned long) bp2) & 3)
+	{
+	  for (x = 0; x < width; x++)
+	    {
+	      r = bp2[0];
+	      g = bp2[1];
+	      b = bp2[2];
+	      *obptr++ = b;
+	      *obptr++ = g;
+	      *obptr++ = r;
+	      bp2 += 3;
+	    }
+	}
+      else
+	{
+	  for (x = 0; x < width - 3; x += 4)
+	    {
+	      guint32 r1b0g0r0;
+	      guint32 g2r2b1g1;
+	      guint32 b3g3r3b2;
+
+	      r1b0g0r0 = ((guint32 *)bp2)[0];
+	      g2r2b1g1 = ((guint32 *)bp2)[1];
+	      b3g3r3b2 = ((guint32 *)bp2)[2];
+	      ((guint32 *)obptr)[0] =
+		(r1b0g0r0 & 0xff00) |
+		((r1b0g0r0 & 0xff0000) >> 16) |
+		(((g2r2b1g1 & 0xff00) | (r1b0g0r0 & 0xff)) << 16);
+	      ((guint32 *)obptr)[1] =
+		(g2r2b1g1 & 0xff0000ff) |
+		((r1b0g0r0 & 0xff000000) >> 16) |
+		((b3g3r3b2 & 0xff) << 16);
+	      ((guint32 *)obptr)[2] =
+		(((g2r2b1g1 & 0xff0000) | (b3g3r3b2 & 0xff000000)) >> 16) |
+		((b3g3r3b2 & 0xff00) << 16) |
+		((b3g3r3b2 & 0xff0000));
+	      bp2 += 12;
+	      obptr += 12;
+	    }
+	  for (; x < width; x++)
+	    {
+	      r = bp2[0];
+	      g = bp2[1];
+	      b = bp2[2];
+	      *obptr++ = b;
+	      *obptr++ = g;
+	      *obptr++ = r;
+	      bp2 += 3;
+	    }
+	}
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+#else
+static void
+xlib_rgb_convert_888_lsb (XImage *image,
+			 int ax, int ay, int width, int height,
+			 unsigned char *buf, int rowstride,
+			 int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  int x, y;
+  unsigned char *obuf;
+  int bpl;
+  unsigned char *bptr, *bp2;
+  int r, g, b;
+
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + ax * 3;
+  for (y = 0; y < height; y++)
+    {
+      bp2 = bptr;
+      for (x = 0; x < width; x++)
+	{
+	  r = bp2[0];
+	  g = bp2[1];
+	  b = bp2[2];
+	  obuf[x * 3] = b;
+	  obuf[x * 3 + 1] = g;
+	  obuf[x * 3 + 2] = r;
+	  bp2 += 3;
+	}
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+#endif
+
+/* convert 24-bit packed to 32-bit unpacked */
+/* todo: optimize this */
+static void
+xlib_rgb_convert_0888 (XImage *image,
+		      int ax, int ay, int width, int height,
+		      unsigned char *buf, int rowstride,
+		      int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  int x, y;
+  unsigned char *obuf;
+  int bpl;
+  unsigned char *bptr, *bp2;
+  int r, g, b;
+
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + ax * 4;
+  for (y = 0; y < height; y++)
+    {
+      bp2 = bptr;
+      for (x = 0; x < width; x++)
+	{
+	  r = bp2[0];
+	  g = bp2[1];
+	  b = bp2[2];
+	  ((guint32 *)obuf)[x] = (r << 16) | (g << 8) | b;
+	  bp2 += 3;
+	}
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+
+static void
+xlib_rgb_convert_0888_br (XImage *image,
+			 int ax, int ay, int width, int height,
+			 unsigned char *buf, int rowstride,
+			 int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  int x, y;
+  unsigned char *obuf;
+  int bpl;
+  unsigned char *bptr, *bp2;
+  int r, g, b;
+
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + ax * 4;
+  for (y = 0; y < height; y++)
+    {
+      bp2 = bptr;
+      for (x = 0; x < width; x++)
+	{
+	  r = bp2[0];
+	  g = bp2[1];
+	  b = bp2[2];
+	  ((guint32 *)obuf)[x] = (b << 24) | (g << 16) | (r << 8);
+	  bp2 += 3;
+	}
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+
+static void
+xlib_rgb_convert_8880_br (XImage *image,
+			 int ax, int ay, int width, int height,
+			 unsigned char *buf, int rowstride,
+			 int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  int x, y;
+  unsigned char *obuf;
+  int bpl;
+  unsigned char *bptr, *bp2;
+  int r, g, b;
+
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + ax * 4;
+  for (y = 0; y < height; y++)
+    {
+      bp2 = bptr;
+      for (x = 0; x < width; x++)
+	{
+	  r = bp2[0];
+	  g = bp2[1];
+	  b = bp2[2];
+	  ((guint32 *)obuf)[x] = (b << 16) | (g << 8) | r;
+	  bp2 += 3;
+	}
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+
+/* Generic truecolor/directcolor conversion function. Slow, but these
+   are oddball modes. */
+static void
+xlib_rgb_convert_truecolor_lsb (XImage *image,
+			       int ax, int ay, int width, int height,
+			       unsigned char *buf, int rowstride,
+			       int x_align, int y_align,
+			       XlibRgbCmap *cmap)
+{
+  int x, y;
+  unsigned char *obuf, *obptr;
+  int bpl;
+  unsigned char *bptr, *bp2;
+  int r, g, b;
+  int r_right, r_left;
+  int g_right, g_left;
+  int b_right, b_left;
+  int bpp;
+  guint32 pixel;
+  int i;
+
+  r_right = 8 - image_info->red_prec;
+  r_left = image_info->red_shift;
+  g_right = 8 - image_info->green_prec;
+  g_left = image_info->green_shift;
+  b_right = 8 - image_info->blue_prec;
+  b_left = image_info->blue_shift;
+  bpp = image_info->bpp;
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + ax * bpp;
+  for (y = 0; y < height; y++)
+    {
+      obptr = obuf;
+      bp2 = bptr;
+      for (x = 0; x < width; x++)
+	{
+	  r = bp2[0];
+	  g = bp2[1];
+	  b = bp2[2];
+	  pixel = ((r >> r_right) << r_left) |
+	    ((g >> g_right) << g_left) |
+	    ((b >> b_right) << b_left);
+	  for (i = 0; i < bpp; i++)
+	    {
+	      *obptr++ = pixel & 0xff;
+	      pixel >>= 8;
+	    }
+	  bp2 += 3;
+	}
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+
+static void
+xlib_rgb_convert_truecolor_lsb_d (XImage *image,
+				 int ax, int ay, int width, int height,
+				 unsigned char *buf, int rowstride,
+				 int x_align, int y_align,
+				 XlibRgbCmap *cmap)
+{
+  int x, y;
+  unsigned char *obuf, *obptr;
+  int bpl;
+  unsigned char *bptr, *bp2;
+  int r, g, b;
+  int r_right, r_left, r_prec;
+  int g_right, g_left, g_prec;
+  int b_right, b_left, b_prec;
+  int bpp;
+  guint32 pixel;
+  int i;
+  int dith;
+  int r1, g1, b1;
+  const unsigned char *dmp;
+
+  r_right = 8 - image_info->red_prec;
+  r_left = image_info->red_shift;
+  r_prec = image_info->red_prec;
+  g_right = 8 - image_info->green_prec;
+  g_left = image_info->green_shift;
+  g_prec = image_info->green_prec;
+  b_right = 8 - image_info->blue_prec;
+  b_left = image_info->blue_shift;
+  b_prec = image_info->blue_prec;
+  bpp = image_info->bpp;
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + ax * bpp;
+  for (y = 0; y < height; y++)
+    {
+      dmp = DM[(y_align + y) & (DM_HEIGHT - 1)];
+      obptr = obuf;
+      bp2 = bptr;
+      for (x = 0; x < width; x++)
+	{
+	  r = bp2[0];
+	  g = bp2[1];
+	  b = bp2[2];
+	  dith = dmp[(x_align + x) & (DM_WIDTH - 1)] << 2;
+	  r1 = r + (dith >> r_prec);
+	  g1 = g + ((252 - dith) >> g_prec);
+	  b1 = b + (dith >> b_prec);
+	  pixel = (((r1 - (r1 >> r_prec)) >> r_right) << r_left) |
+	    (((g1 - (g1 >> g_prec)) >> g_right) << g_left) |
+	    (((b1 - (b1 >> b_prec)) >> b_right) << b_left);
+	  for (i = 0; i < bpp; i++)
+	    {
+	      *obptr++ = pixel & 0xff;
+	      pixel >>= 8;
+	    }
+	  bp2 += 3;
+	}
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+
+static void
+xlib_rgb_convert_truecolor_msb (XImage *image,
+			       int ax, int ay, int width, int height,
+			       unsigned char *buf, int rowstride,
+			       int x_align, int y_align,
+			       XlibRgbCmap *cmap)
+{
+  int x, y;
+  unsigned char *obuf, *obptr;
+  int bpl;
+  unsigned char *bptr, *bp2;
+  int r, g, b;
+  int r_right, r_left;
+  int g_right, g_left;
+  int b_right, b_left;
+  int bpp;
+  guint32 pixel;
+  int shift, shift_init;
+
+  r_right = 8 - image_info->red_prec;
+  r_left = image_info->red_shift;
+  g_right = 8 - image_info->green_prec;
+  g_left = image_info->green_shift;
+  b_right = 8 - image_info->blue_prec;
+  b_left = image_info->blue_shift;
+  bpp = image_info->bpp;
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + ax * bpp;
+  shift_init = (bpp - 1) << 3;
+  for (y = 0; y < height; y++)
+    {
+      obptr = obuf;
+      bp2 = bptr;
+      for (x = 0; x < width; x++)
+	{
+	  r = bp2[0];
+	  g = bp2[1];
+	  b = bp2[2];
+	  pixel = ((r >> r_right) << r_left) |
+	    ((g >> g_right) << g_left) |
+	    ((b >> b_right) << b_left);
+	  for (shift = shift_init; shift >= 0; shift -= 8)
+	    {
+	      *obptr++ = (pixel >> shift) & 0xff;
+	    }
+	  bp2 += 3;
+	}
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+
+static void
+xlib_rgb_convert_truecolor_msb_d (XImage *image,
+				 int ax, int ay, int width, int height,
+				 unsigned char *buf, int rowstride,
+				 int x_align, int y_align,
+				 XlibRgbCmap *cmap)
+{
+  int x, y;
+  unsigned char *obuf, *obptr;
+  int bpl;
+  unsigned char *bptr, *bp2;
+  int r, g, b;
+  int r_right, r_left, r_prec;
+  int g_right, g_left, g_prec;
+  int b_right, b_left, b_prec;
+  int bpp;
+  guint32 pixel;
+  int shift, shift_init;
+  int dith;
+  int r1, g1, b1;
+  const unsigned char *dmp;
+
+  r_right = 8 - image_info->red_prec;
+  r_left = image_info->red_shift;
+  r_prec = image_info->red_prec;
+  g_right = 8 - image_info->green_prec;
+  g_left = image_info->green_shift;
+  g_prec = image_info->green_prec;
+  b_right = 8 - image_info->blue_prec;
+  b_left = image_info->blue_shift;
+  b_prec = image_info->blue_prec;
+  bpp = image_info->bpp;
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + ax * bpp;
+  shift_init = (bpp - 1) << 3;
+  for (y = 0; y < height; y++)
+    {
+      dmp = DM[(y_align + y) & (DM_HEIGHT - 1)];
+      obptr = obuf;
+      bp2 = bptr;
+      for (x = 0; x < width; x++)
+	{
+	  r = bp2[0];
+	  g = bp2[1];
+	  b = bp2[2];
+	  dith = dmp[(x_align + x) & (DM_WIDTH - 1)] << 2;
+	  r1 = r + (dith >> r_prec);
+	  g1 = g + ((252 - dith) >> g_prec);
+	  b1 = b + (dith >> b_prec);
+	  pixel = (((r1 - (r1 >> r_prec)) >> r_right) << r_left) |
+	    (((g1 - (g1 >> g_prec)) >> g_right) << g_left) |
+	    (((b1 - (b1 >> b_prec)) >> b_right) << b_left);
+	  for (shift = shift_init; shift >= 0; shift -= 8)
+	    {
+	      *obptr++ = (pixel >> shift) & 0xff;
+	    }
+	  bp2 += 3;
+	}
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+
+/* This actually works for depths from 3 to 7 */
+static void
+xlib_rgb_convert_4 (XImage *image,
+		   int ax, int ay, int width, int height,
+		   unsigned char *buf, int rowstride,
+		   int x_align, int y_align,
+		   XlibRgbCmap *cmap)
+{
+  int x, y;
+  int bpl;
+  unsigned char *obuf, *obptr;
+  unsigned char *bptr, *bp2;
+  int r, g, b;
+  const unsigned char *dmp;
+  int dith;
+
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + ax;
+  for (y = 0; y < height; y++)
+    {
+      dmp = DM[(y_align + y) & (DM_HEIGHT - 1)];
+      bp2 = bptr;
+      obptr = obuf;
+      for (x = 0; x < width; x += 1)
+	{
+	  r = *bp2++;
+	  g = *bp2++;
+	  b = *bp2++;
+	  dith = (dmp[(x_align + x) & (DM_WIDTH - 1)] << 2) | 3;
+	  obptr[0] = colorcube_d[(((r + dith) & 0x100) >> 2) |
+				(((g + 258 - dith) & 0x100) >> 5) |
+				(((b + dith) & 0x100) >> 8)];
+	  obptr++;
+	}
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+
+/* This actually works for depths from 3 to 7 */
+static void
+xlib_rgb_convert_gray4 (XImage *image,
+		       int ax, int ay, int width, int height,
+		       unsigned char *buf, int rowstride,
+		       int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  int x, y;
+  int bpl;
+  unsigned char *obuf, *obptr;
+  unsigned char *bptr, *bp2;
+  int r, g, b;
+  int shift;
+
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + ax;
+  shift = 9 - image_info->x_visual_info->depth;
+  for (y = 0; y < height; y++)
+    {
+      bp2 = bptr;
+      obptr = obuf;
+      for (x = 0; x < width; x++)
+	{
+	  r = *bp2++;
+	  g = *bp2++;
+	  b = *bp2++;
+	  obptr[0] = (g + ((b + r) >> 1)) >> shift;
+	  obptr++;
+	}
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+
+static void
+xlib_rgb_convert_gray4_pack (XImage *image,
+			    int ax, int ay, int width, int height,
+			    unsigned char *buf, int rowstride,
+			    int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  int x, y;
+  int bpl;
+  unsigned char *obuf, *obptr;
+  unsigned char *bptr, *bp2;
+  int r, g, b;
+  int shift;
+  unsigned char pix0, pix1;
+  /* todo: this is hardcoded to big-endian. Make endian-agile. */
+
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + (ax >> 1);
+  shift = 9 - image_info->x_visual_info->depth;
+  for (y = 0; y < height; y++)
+    {
+      bp2 = bptr;
+      obptr = obuf;
+      for (x = 0; x < width; x += 2)
+	{
+	  r = *bp2++;
+	  g = *bp2++;
+	  b = *bp2++;
+	  pix0 = (g + ((b + r) >> 1)) >> shift;
+	  r = *bp2++;
+	  g = *bp2++;
+	  b = *bp2++;
+	  pix1 = (g + ((b + r) >> 1)) >> shift;
+	  obptr[0] = (pix0 << 4) | pix1;
+	  obptr++;
+	}
+      if (width & 1)
+	{
+	  r = *bp2++;
+	  g = *bp2++;
+	  b = *bp2++;
+	  pix0 = (g + ((b + r) >> 1)) >> shift;
+	  obptr[0] = (pix0 << 4);
+	}
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+
+/* This actually works for depths from 3 to 7 */
+static void
+xlib_rgb_convert_gray4_d (XImage *image,
+		       int ax, int ay, int width, int height,
+		       unsigned char *buf, int rowstride,
+		       int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  int x, y;
+  int bpl;
+  unsigned char *obuf, *obptr;
+  unsigned char *bptr, *bp2;
+  int r, g, b;
+  const unsigned char *dmp;
+  int prec, right;
+  int gray;
+
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + ax;
+  prec = image_info->x_visual_info->depth;
+  right = 8 - prec;
+  for (y = 0; y < height; y++)
+    {
+      bp2 = bptr;
+      obptr = obuf;
+      dmp = DM[(y_align + y) & (DM_HEIGHT - 1)];
+      for (x = 0; x < width; x++)
+	{
+	  r = *bp2++;
+	  g = *bp2++;
+	  b = *bp2++;
+	  gray = (g + ((b + r) >> 1)) >> 1;
+	  gray += (dmp[(x_align + x) & (DM_WIDTH - 1)] << 2) >> prec;
+	  obptr[0] = (gray - (gray >> prec)) >> right;
+	  obptr++;
+	}
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+
+static void
+xlib_rgb_convert_gray4_d_pack (XImage *image,
+			      int ax, int ay, int width, int height,
+			      unsigned char *buf, int rowstride,
+			      int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  int x, y;
+  int bpl;
+  unsigned char *obuf, *obptr;
+  unsigned char *bptr, *bp2;
+  int r, g, b;
+  const unsigned char *dmp;
+  int prec, right;
+  int gray;
+  unsigned char pix0, pix1;
+  /* todo: this is hardcoded to big-endian. Make endian-agile. */
+
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + (ax >> 1);
+  prec = image_info->x_visual_info->depth;
+  right = 8 - prec;
+  for (y = 0; y < height; y++)
+    {
+      bp2 = bptr;
+      obptr = obuf;
+      dmp = DM[(y_align + y) & (DM_HEIGHT - 1)];
+      for (x = 0; x < width; x += 2)
+	{
+	  r = *bp2++;
+	  g = *bp2++;
+	  b = *bp2++;
+	  gray = (g + ((b + r) >> 1)) >> 1;
+	  gray += (dmp[(x_align + x) & (DM_WIDTH - 1)] << 2) >> prec;
+	  pix0 = (gray - (gray >> prec)) >> right;
+	  r = *bp2++;
+	  g = *bp2++;
+	  b = *bp2++;
+	  gray = (g + ((b + r) >> 1)) >> 1;
+	  gray += (dmp[(x_align + x + 1) & (DM_WIDTH - 1)] << 2) >> prec;
+	  pix1 = (gray - (gray >> prec)) >> right;
+	  obptr[0] = (pix0 << 4) | pix1;
+	  obptr++;
+	}
+      if (width & 1)
+	{
+	  r = *bp2++;
+	  g = *bp2++;
+	  b = *bp2++;
+	  gray = (g + ((b + r) >> 1)) >> 1;
+	  gray += (dmp[(x_align + x + 1) & (DM_WIDTH - 1)] << 2) >> prec;
+	  pix0 = (gray - (gray >> prec)) >> right;
+	  obptr[0] = (pix0 << 4);
+	}
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+
+static void
+xlib_rgb_convert_1 (XImage *image,
+		   int ax, int ay, int width, int height,
+		   unsigned char *buf, int rowstride,
+		   int x_align, int y_align,
+		   XlibRgbCmap *cmap)
+{
+  int x, y;
+  int bpl;
+  unsigned char *obuf, *obptr;
+  unsigned char *bptr, *bp2;
+  int r, g, b;
+  const unsigned char *dmp;
+  int dith;
+  unsigned char byte;
+
+  bptr = buf;
+  bpl = image->bytes_per_line;
+  obuf = ((unsigned char *)image->data) + ay * bpl + (ax >> 3);
+  byte = 0; /* unnecessary, but it keeps gcc from complaining */
+  for (y = 0; y < height; y++)
+    {
+      dmp = DM[(y_align + y) & (DM_HEIGHT - 1)];
+      bp2 = bptr;
+      obptr = obuf;
+      for (x = 0; x < width; x++)
+	{
+	  r = *bp2++;
+	  g = *bp2++;
+	  b = *bp2++;
+	  dith = (dmp[(x_align + x) & (DM_WIDTH - 1)] << 4) | 4;
+	  byte += byte + (r + g + g + b + dith > 1020);
+	  if ((x & 7) == 7)
+	    {
+	      obptr[0] = byte;
+	      obptr++;
+	    }
+	}
+      if (x & 7)
+	obptr[0] = byte << (8 - (x & 7));
+      bptr += rowstride;
+      obuf += bpl;
+    }
+}
+
+/* Returns a pointer to the stage buffer. */
+static unsigned char *
+xlib_rgb_ensure_stage (void)
+{
+  if (image_info->stage_buf == NULL)
+    image_info->stage_buf = malloc (IMAGE_HEIGHT * STAGE_ROWSTRIDE);
+  return image_info->stage_buf;
+}
+
+/* This is slow. Speed me up, please. */
+static void
+xlib_rgb_32_to_stage (unsigned char *buf, int rowstride, int width, int height)
+{
+  int x, y;
+  unsigned char *pi_start, *po_start;
+  unsigned char *pi, *po;
+
+  pi_start = buf;
+  po_start = xlib_rgb_ensure_stage ();
+  for (y = 0; y < height; y++)
+    {
+      pi = pi_start;
+      po = po_start;
+      for (x = 0; x < width; x++)
+	{
+	  *po++ = *pi++;
+	  *po++ = *pi++;
+	  *po++ = *pi++;
+	  pi++;
+	}
+      pi_start += rowstride;
+      po_start += STAGE_ROWSTRIDE;
+    }
+}
+
+/* Generic 32bit RGB conversion function - convert to 24bit packed, then
+   go from there. */
+static void
+xlib_rgb_convert_32_generic (XImage *image,
+			    int ax, int ay, int width, int height,
+			    unsigned char *buf, int rowstride,
+			    int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  xlib_rgb_32_to_stage (buf, rowstride, width, height);
+
+  (*image_info->conv) (image, ax, ay, width, height,
+		       image_info->stage_buf, STAGE_ROWSTRIDE,
+		       x_align, y_align, cmap);
+}
+
+/* Generic 32bit RGB conversion function - convert to 24bit packed, then
+   go from there. */
+static void
+xlib_rgb_convert_32_generic_d (XImage *image,
+			      int ax, int ay, int width, int height,
+			      unsigned char *buf, int rowstride,
+			      int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  xlib_rgb_32_to_stage (buf, rowstride, width, height);
+
+  (*image_info->conv_d) (image, ax, ay, width, height,
+			 image_info->stage_buf, STAGE_ROWSTRIDE,
+			 x_align, y_align, cmap);
+}
+
+/* This is slow. Speed me up, please. */
+static void
+xlib_rgb_gray_to_stage (unsigned char *buf, int rowstride, int width, int height)
+{
+  int x, y;
+  unsigned char *pi_start, *po_start;
+  unsigned char *pi, *po;
+  unsigned char gray;
+
+  pi_start = buf;
+  po_start = xlib_rgb_ensure_stage ();
+  for (y = 0; y < height; y++)
+    {
+      pi = pi_start;
+      po = po_start;
+      for (x = 0; x < width; x++)
+	{
+	  gray = *pi++;
+	  *po++ = gray;
+	  *po++ = gray;
+	  *po++ = gray;
+	}
+      pi_start += rowstride;
+      po_start += STAGE_ROWSTRIDE;
+    }
+}
+
+/* Generic gray conversion function - convert to 24bit packed, then go
+   from there. */
+static void
+xlib_rgb_convert_gray_generic (XImage *image,
+			      int ax, int ay, int width, int height,
+			      unsigned char *buf, int rowstride,
+			      int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  xlib_rgb_gray_to_stage (buf, rowstride, width, height);
+
+  (*image_info->conv) (image, ax, ay, width, height,
+		       image_info->stage_buf, STAGE_ROWSTRIDE,
+		       x_align, y_align, cmap);
+}
+
+static void
+xlib_rgb_convert_gray_generic_d (XImage *image,
+				int ax, int ay, int width, int height,
+				unsigned char *buf, int rowstride,
+				int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  xlib_rgb_gray_to_stage (buf, rowstride, width, height);
+
+  (*image_info->conv_d) (image, ax, ay, width, height,
+			 image_info->stage_buf, STAGE_ROWSTRIDE,
+			 x_align, y_align, cmap);
+}
+
+/* Render grayscale using indexed method. */
+static void
+xlib_rgb_convert_gray_cmap (XImage *image,
+			   int ax, int ay, int width, int height,
+			   unsigned char *buf, int rowstride,
+			   int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  (*image_info->conv_indexed) (image, ax, ay, width, height,
+			       buf, rowstride,
+			       x_align, y_align, image_info->gray_cmap);
+}
+
+#if 0
+static void
+xlib_rgb_convert_gray_cmap_d (XImage *image,
+				int ax, int ay, int width, int height,
+				unsigned char *buf, int rowstride,
+				int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  (*image_info->conv_indexed_d) (image, ax, ay, width, height,
+				 buf, rowstride,
+				 x_align, y_align, image_info->gray_cmap);
+}
+#endif
+
+/* This is slow. Speed me up, please. */
+static void
+xlib_rgb_indexed_to_stage (unsigned char *buf, int rowstride, int width, int height,
+			  XlibRgbCmap *cmap)
+{
+  int x, y;
+  unsigned char *pi_start, *po_start;
+  unsigned char *pi, *po;
+  int rgb;
+
+  pi_start = buf;
+  po_start = xlib_rgb_ensure_stage ();
+  for (y = 0; y < height; y++)
+    {
+      pi = pi_start;
+      po = po_start;
+      for (x = 0; x < width; x++)
+	{
+	  rgb = cmap->colors[*pi++];
+	  *po++ = rgb >> 16;
+	  *po++ = (rgb >> 8) & 0xff;
+	  *po++ = rgb & 0xff;
+	}
+      pi_start += rowstride;
+      po_start += STAGE_ROWSTRIDE;
+    }
+}
+
+/* Generic gray conversion function - convert to 24bit packed, then go
+   from there. */
+static void
+xlib_rgb_convert_indexed_generic (XImage *image,
+				 int ax, int ay, int width, int height,
+				 unsigned char *buf, int rowstride,
+				 int x_align, int y_align, XlibRgbCmap *cmap)
+{
+  xlib_rgb_indexed_to_stage (buf, rowstride, width, height, cmap);
+
+  (*image_info->conv) (image, ax, ay, width, height,
+		       image_info->stage_buf, STAGE_ROWSTRIDE,
+		       x_align, y_align, cmap);
+}
+
+static void
+xlib_rgb_convert_indexed_generic_d (XImage *image,
+				   int ax, int ay, int width, int height,
+				   unsigned char *buf, int rowstride,
+				   int x_align, int y_align,
+				   XlibRgbCmap *cmap)
+{
+  xlib_rgb_indexed_to_stage (buf, rowstride, width, height, cmap);
+
+  (*image_info->conv_d) (image, ax, ay, width, height,
+			 image_info->stage_buf, STAGE_ROWSTRIDE,
+			 x_align, y_align, cmap);
+}
+
+/* Select a conversion function based on the visual and a
+   representative image. */
+static void
+xlib_rgb_select_conv (XImage *image, ByteOrder byte_order)
+{
+  int depth, byterev;
+  int vtype; /* visual type */
+  int bpp; /* bits per pixel - from the visual */
+  guint32 red_mask, green_mask, blue_mask;
+  XlibRgbConvFunc conv, conv_d;
+  XlibRgbConvFunc conv_32, conv_32_d;
+  XlibRgbConvFunc conv_gray, conv_gray_d;
+  XlibRgbConvFunc conv_indexed, conv_indexed_d;
+  Bool mask_rgb, mask_bgr;
+
+  depth = image_info->x_visual_info->depth;
+  bpp = image->bits_per_pixel;
+  if (xlib_rgb_verbose)
+    printf ("Chose visual 0x%x, image bpp=%d, %s first\n",
+	    (int)image_info->x_visual_info->visual->visualid,
+	    bpp, byte_order == LSB_FIRST ? "lsb" : "msb");
+
+#if G_BYTE_ORDER == G_BIG_ENDIAN
+  byterev = (byte_order == LSB_FIRST);
+#else
+  byterev = (byte_order == MSB_FIRST);
+#endif
+
+  vtype = image_info->x_visual_info->class;
+  if (vtype == DirectColor)
+    vtype = TrueColor;
+
+  red_mask = image_info->x_visual_info->red_mask;
+  green_mask = image_info->x_visual_info->green_mask;
+  blue_mask = image_info->x_visual_info->blue_mask;
+
+  mask_rgb = red_mask == 0xff0000 && green_mask == 0xff00 && blue_mask == 0xff;
+  mask_bgr = red_mask == 0xff && green_mask == 0xff00 && blue_mask == 0xff0000;
+
+  conv = NULL;
+  conv_d = NULL;
+
+  conv_32 = xlib_rgb_convert_32_generic;
+  conv_32_d = xlib_rgb_convert_32_generic_d;
+
+  conv_gray = xlib_rgb_convert_gray_generic;
+  conv_gray_d = xlib_rgb_convert_gray_generic_d;
+
+  conv_indexed = xlib_rgb_convert_indexed_generic;
+  conv_indexed_d = xlib_rgb_convert_indexed_generic_d;
+
+  image_info->dith_default = FALSE;
+
+  if (image_info->bitmap)
+    conv = xlib_rgb_convert_1;
+  else if (bpp == 16 && depth == 16 && !byterev &&
+      red_mask == 0xf800 && green_mask == 0x7e0 && blue_mask == 0x1f)
+    {
+      conv = xlib_rgb_convert_565;
+      conv_d = xlib_rgb_convert_565_d;
+      conv_gray = xlib_rgb_convert_565_gray;
+      xlib_rgb_preprocess_dm_565 ();
+    }
+  else if (bpp == 16 && depth == 16 &&
+	   vtype == TrueColor&& byterev &&
+      red_mask == 0xf800 && green_mask == 0x7e0 && blue_mask == 0x1f)
+    conv = xlib_rgb_convert_565_br;
+
+  else if (bpp == 16 && depth == 15 &&
+	   vtype == TrueColor && !byterev &&
+      red_mask == 0x7c00 && green_mask == 0x3e0 && blue_mask == 0x1f)
+    conv = xlib_rgb_convert_555;
+
+  else if (bpp == 16 && depth == 15 &&
+	   vtype == TrueColor && byterev &&
+      red_mask == 0x7c00 && green_mask == 0x3e0 && blue_mask == 0x1f)
+    conv = xlib_rgb_convert_555_br;
+
+  /* I'm not 100% sure about the 24bpp tests - but testing will show*/
+  else if (bpp == 24 && depth == 24 && vtype == TrueColor &&
+	   ((mask_rgb && byte_order == LSB_FIRST) ||
+	    (mask_bgr && byte_order == MSB_FIRST)))
+    conv = xlib_rgb_convert_888_lsb;
+  else if (bpp == 24 && depth == 24 && vtype == TrueColor &&
+	   ((mask_rgb && byte_order == MSB_FIRST) ||
+	    (mask_bgr && byte_order == LSB_FIRST)))
+    conv = xlib_rgb_convert_888_msb;
+#if G_BYTE_ORDER == G_BIG_ENDIAN
+  else if (bpp == 32 && depth == 24 && vtype == TrueColor &&
+	   (mask_rgb && byte_order == LSB_FIRST))
+    conv = xlib_rgb_convert_0888_br;
+  else if (bpp == 32 && depth == 24 && vtype == TrueColor &&
+	   (mask_rgb && byte_order == MSB_FIRST))
+    conv = xlib_rgb_convert_0888;
+  else if (bpp == 32 && depth == 24 && vtype == TrueColor &&
+	   (mask_bgr && byte_order == MSB_FIRST))
+    conv = xlib_rgb_convert_8880_br;
+#else
+  else if (bpp == 32 && depth == 24 && vtype == TrueColor &&
+	   (mask_rgb && byte_order == MSB_FIRST))
+    conv = xlib_rgb_convert_0888_br;
+  else if (bpp == 32 && (depth == 32 || depth == 24) && vtype == TrueColor &&
+	   (mask_rgb && byte_order == LSB_FIRST))
+    conv = xlib_rgb_convert_0888;
+  else if (bpp == 32 && depth == 24 && vtype == TrueColor &&
+	   (mask_bgr && byte_order == LSB_FIRST))
+    conv = xlib_rgb_convert_8880_br;
+#endif
+
+  else if (vtype == TrueColor && byte_order == LSB_FIRST)
+    {
+      conv = xlib_rgb_convert_truecolor_lsb;
+      conv_d = xlib_rgb_convert_truecolor_lsb_d;
+    }
+  else if (vtype == TrueColor && byte_order == MSB_FIRST)
+    {
+      conv = xlib_rgb_convert_truecolor_msb;
+      conv_d = xlib_rgb_convert_truecolor_msb_d;
+    }
+  else if (bpp == 8 && depth == 8 && (vtype == PseudoColor
+#ifdef ENABLE_GRAYSCALE
+				      || vtype == GrayScale
+#endif
+				      ))
+    {
+      image_info->dith_default = TRUE;
+      conv = xlib_rgb_convert_8;
+      if (vtype != GrayScale)
+	{
+	  if (image_info->nred_shades == 6 &&
+	      image_info->ngreen_shades == 6 &&
+	      image_info->nblue_shades == 6)
+	    conv_d = xlib_rgb_convert_8_d666;
+	  else
+	    conv_d = xlib_rgb_convert_8_d;
+	}
+      conv_indexed = xlib_rgb_convert_8_indexed;
+      conv_gray = xlib_rgb_convert_gray_cmap;
+    }
+  else if (bpp == 8 && depth == 8 && (vtype == StaticGray
+#ifdef not_ENABLE_GRAYSCALE
+				      || vtype == GrayScale
+#endif
+				      ))
+    {
+      conv = xlib_rgb_convert_gray8;
+      conv_gray = xlib_rgb_convert_gray8_gray;
+    }
+  else if (bpp == 8 && depth < 8 && depth >= 2 &&
+	   (vtype == StaticGray
+	    || vtype == GrayScale))
+    {
+      conv = xlib_rgb_convert_gray4;
+      conv_d = xlib_rgb_convert_gray4_d;
+    }
+  else if (bpp == 8 && depth < 8 && depth >= 3)
+    {
+      conv = xlib_rgb_convert_4;
+    }
+  else if (bpp == 4 && depth <= 4 && depth >= 2 &&
+	   (vtype == StaticGray
+	    || vtype == GrayScale))
+    {
+      conv = xlib_rgb_convert_gray4_pack;
+      conv_d = xlib_rgb_convert_gray4_d_pack;
+    }
+
+  if (conv_d == NULL)
+    conv_d = conv;
+
+  image_info->conv = conv;
+  image_info->conv_d = conv_d;
+
+  image_info->conv_32 = conv_32;
+  image_info->conv_32_d = conv_32_d;
+
+  image_info->conv_gray = conv_gray;
+  image_info->conv_gray_d = conv_gray_d;
+
+  image_info->conv_indexed = conv_indexed;
+  image_info->conv_indexed_d = conv_indexed_d;
+}
+
+static int horiz_idx;
+static int horiz_y = IMAGE_HEIGHT;
+static int vert_idx;
+static int vert_x = IMAGE_WIDTH;
+static int tile_idx;
+static int tile_x = IMAGE_WIDTH;
+static int tile_y1 = IMAGE_HEIGHT;
+static int tile_y2 = IMAGE_HEIGHT;
+
+#ifdef VERBOSE
+static int sincelast;
+#endif
+
+/* Defining NO_FLUSH can cause inconsistent screen updates, but is useful
+   for performance evaluation. */
+
+#undef NO_FLUSH
+
+static int
+xlib_rgb_alloc_scratch_image (void)
+{
+  if (static_image_idx == N_IMAGES)
+    {
+#ifndef NO_FLUSH
+      XFlush(image_info->display);
+#endif
+#ifdef VERBOSE
+      printf ("flush, %d puts since last flush\n", sincelast);
+      sincelast = 0;
+#endif
+      static_image_idx = 0;
+      horiz_y = IMAGE_HEIGHT;
+      vert_x = IMAGE_WIDTH;
+      tile_x = IMAGE_WIDTH;
+      tile_y1 = tile_y2 = IMAGE_HEIGHT;
+    }
+  return static_image_idx++;
+}
+
+static XImage *
+xlib_rgb_alloc_scratch (int width, int height, int *ax, int *ay)
+{
+  XImage *image;
+  int idx;
+
+  if (width >= (IMAGE_WIDTH >> 1))
+    {
+      if (height >= (IMAGE_HEIGHT >> 1))
+	{
+	  idx = xlib_rgb_alloc_scratch_image ();
+	  *ax = 0;
+	  *ay = 0;
+	}
+      else
+	{
+	  if (height + horiz_y > IMAGE_HEIGHT)
+	    {
+	      horiz_idx = xlib_rgb_alloc_scratch_image ();
+	      horiz_y = 0;
+	    }
+	  idx = horiz_idx;
+	  *ax = 0;
+	  *ay = horiz_y;
+	  horiz_y += height;
+	}
+    }
+  else
+    {
+      if (height >= (IMAGE_HEIGHT >> 1))
+	{
+	  if (width + vert_x > IMAGE_WIDTH)
+	    {
+	      vert_idx = xlib_rgb_alloc_scratch_image ();
+	      vert_x = 0;
+	    }
+	  idx = vert_idx;
+	  *ax = vert_x;
+	  *ay = 0;
+	  /* using 3 and -4 would be slightly more efficient on 32-bit machines
+	     with > 1bpp displays */
+	  vert_x += (width + 7) & -8;
+	}
+      else
+	{
+	  if (width + tile_x > IMAGE_WIDTH)
+	    {
+	      tile_y1 = tile_y2;
+	      tile_x = 0;
+	    }
+	  if (height + tile_y1 > IMAGE_HEIGHT)
+	    {
+	      tile_idx = xlib_rgb_alloc_scratch_image ();
+	      tile_x = 0;
+	      tile_y1 = 0;
+	      tile_y2 = 0;
+	    }
+	  if (height + tile_y1 > tile_y2)
+	    tile_y2 = height + tile_y1;
+	  idx = tile_idx;
+	  *ax = tile_x;
+	  *ay = tile_y1;
+	  tile_x += (width + 7) & -8;
+	}
+    }
+  image = static_image[idx];
+#ifdef VERBOSE
+  printf ("index %d, x %d, y %d (%d x %d)\n", idx, *ax, *ay, width, height);
+  sincelast++;
+#endif
+  return image;
+}
+
+static void
+xlib_draw_rgb_image_core (Drawable drawable,
+			  GC gc,
+			  int x,
+			  int y,
+			  int width,
+			  int height,
+			  unsigned char *buf,
+			  int pixstride,
+			  int rowstride,
+			  XlibRgbConvFunc conv,
+			  XlibRgbCmap *cmap,
+			  int xdith,
+			  int ydith)
+{
+  int ay, ax;
+  int xs0, ys0;
+  XImage *image;
+  int width1, height1;
+  unsigned char *buf_ptr;
+
+  if (image_info->bitmap)
+    {
+      if (image_info->own_gc == 0)
+	{
+	  XColor color;
+
+	  image_info->own_gc = XCreateGC(image_info->display,
+					 drawable,
+					 0, NULL);
+	  color.pixel = WhitePixel(image_info->display,
+				   image_info->screen_num);
+	  XSetForeground(image_info->display, image_info->own_gc, color.pixel);
+	  color.pixel = BlackPixel(image_info->display,
+				   image_info->screen_num);
+	  XSetBackground(image_info->display, image_info->own_gc, color.pixel);
+	}
+      gc = image_info->own_gc;
+    }
+  for (ay = 0; ay < height; ay += IMAGE_HEIGHT)
+    {
+      height1 = MIN (height - ay, IMAGE_HEIGHT);
+      for (ax = 0; ax < width; ax += IMAGE_WIDTH)
+	{
+	  width1 = MIN (width - ax, IMAGE_WIDTH);
+	  buf_ptr = buf + ay * rowstride + ax * pixstride;
+
+	  image = xlib_rgb_alloc_scratch (width1, height1, &xs0, &ys0);
+
+	  conv (image, xs0, ys0, width1, height1, buf_ptr, rowstride,
+		x + ax + xdith, y + ay + ydith, cmap);
+
+#ifndef DONT_ACTUALLY_DRAW
+	  XPutImage(image_info->display, drawable, gc, image,
+		    xs0, ys0, x + ax, y + ay, (unsigned int)width1, (unsigned int)height1);
+#endif
+	}
+    }
+}
+
+
+/**
+ * xlib_draw_rgb_image:
+ * @drawable: Destination drawable.
+ * @gc: A graphic context.
+ * @x: Leftmost coordinate of the destination rectangle.
+ * @y: Upper coordinate of the destination rectangle.
+ * @width: Width of the destination rectangle, in pixels.
+ * @height: Height of the destination rectangle, in pixels.
+ * @dith: Dithering method to use.
+ * @rgb_buf: Pointer to the pixel in the RGB buffer that corresponds to the
+ * upper-left corner of the rectangular region to render.
+ * @rowstride: Offset between pixel rows in the RGB buffer, in bytes.
+ * 
+ * Renders an RGB buffer to a drawable.  Pixels are specified as RGB triplets
+ * with 8 bits per channel.  An image will thus look like an RGBRGBRGBRGB
+ * sequence of 8-bit values.  This function does not let you specify dither
+ * offsets; applications that need to render partial regions of a buffer to
+ * build the final image should use xlib_draw_rgb_image_dithalign() instead.
+ **/
+void
+xlib_draw_rgb_image (Drawable drawable,
+		     GC gc,
+		     int x,
+		     int y,
+		     int width,
+		     int height,
+		     XlibRgbDither dith,
+		     unsigned char *rgb_buf,
+		     int rowstride)
+{
+  if (dith == XLIB_RGB_DITHER_NONE || (dith == XLIB_RGB_DITHER_NORMAL &&
+				      !image_info->dith_default))
+    xlib_draw_rgb_image_core (drawable, gc, x, y, width, height,
+			      rgb_buf, 3, rowstride, image_info->conv, NULL,
+			      0, 0);
+  else
+    xlib_draw_rgb_image_core (drawable, gc, x, y, width, height,
+			      rgb_buf, 3, rowstride, image_info->conv_d, NULL,
+			      0, 0);
+}
+
+/**
+ * xlib_draw_rgb_image_dithalign:
+ * @drawable: Destination drawable.
+ * @gc: A graphic context.
+ * @x: Leftmost coordinate of the destination rectangle.
+ * @y: Upper coordinate of the destination rectangle.
+ * @width: Width of the destination rectangle, in pixels.
+ * @height: Height of the destination rectangle, in pixels.
+ * @dith: Dithering method to use.
+ * @rgb_buf: Pointer to the pixel in the RGB buffer that corresponds to the
+ * upper-left corner of the rectangular region to render.
+ * @rowstride: Offset between pixel rows in the RGB buffer, in bytes.
+ * @xdith: X offset for the dither mask.
+ * @ydith: Y offset for the dither mask.
+ * 
+ * Renders an RGB buffer to a drawable.  Pixels are specified as RGB triplets
+ * with 8 bits per channel.  An image will thus look like an RGBRGBRGBRGB
+ * sequence of 8-bit values.  This function lets you specify a pair of dither
+ * offsets.  It should be used when you need to render regions of an RGB buffer
+ * separately to form the final image; the dither offsets let you align the
+ * dither mask appropriately.
+ **/
+void
+xlib_draw_rgb_image_dithalign (Drawable drawable,
+			      GC gc,
+			      int x,
+			      int y,
+			      int width,
+			      int height,
+			      XlibRgbDither dith,
+			      unsigned char *rgb_buf,
+			      int rowstride,
+			      int xdith,
+			      int ydith)
+{
+  if (dith == XLIB_RGB_DITHER_NONE || (dith == XLIB_RGB_DITHER_NORMAL &&
+				       !image_info->dith_default))
+    xlib_draw_rgb_image_core (drawable, gc, x, y, width, height,
+			      rgb_buf, 3, rowstride, image_info->conv, NULL,
+			      xdith, ydith);
+  else
+    xlib_draw_rgb_image_core (drawable, gc, x, y, width, height,
+			      rgb_buf, 3, rowstride, image_info->conv_d, NULL,
+			      xdith, ydith);
+}
+
+/**
+ * xlib_draw_rgb_32_image:
+ * @drawable: Destination drawable.
+ * @gc: A graphic context.
+ * @x: Leftmost coordinate of the destination rectangle.
+ * @y: Upper coordinate of the destination rectangle.
+ * @width: Width of the destination rectangle, in pixels.
+ * @height: Height of the destination rectangle, in pixels.
+ * @dith: Dithering method to use.
+ * @buf: Pointer to the pixel in the RGB buffer that corresponds to the
+ * upper-left corner of the rectangular region to render.
+ * @rowstride: Offset between pixel rows in the RGB buffer, in bytes.
+ * 
+ * This function is analogous to xlib_draw_rgb_image(), but it lets you use
+ * 32-bit RGB buffers with pixels specified as 0xRRGGBB00.  The
+ * least-significant 8 bits are actually discarded.  This function can lead to
+ * faster results than xlib_draw_rgb_image() since the pixels are aligned on
+ * 32-bit boundaries.
+ **/
+void
+xlib_draw_rgb_32_image (Drawable drawable,
+			GC gc,
+			int x,
+			int y,
+			int width,
+			int height,
+			XlibRgbDither dith,
+			unsigned char *buf,
+			int rowstride)
+{
+  if (dith == XLIB_RGB_DITHER_NONE || (dith == XLIB_RGB_DITHER_NORMAL &&
+				       !image_info->dith_default))
+    xlib_draw_rgb_image_core (drawable, gc, x, y, width, height,
+			      buf, 4, rowstride,
+			      image_info->conv_32, NULL, 0, 0);
+  else
+    xlib_draw_rgb_image_core (drawable, gc, x, y, width, height,
+			      buf, 4, rowstride,
+			      image_info->conv_32_d, NULL, 0, 0);
+}
+
+static void
+xlib_rgb_make_gray_cmap (XlibRgbInfo *info)
+{
+  guint32 rgb[256];
+  int i;
+
+  for (i = 0; i < 256; i++)
+    rgb[i] = (i << 16)  | (i << 8) | i;
+  info->gray_cmap = xlib_rgb_cmap_new (rgb, 256);
+}
+
+/**
+ * xlib_draw_gray_image:
+ * @drawable: Destination drawable.
+ * @gc: A graphic context.
+ * @x: Leftmost coordinate of the destination rectangle.
+ * @y: Upper coordinate of the destination rectangle.
+ * @width: Width of the destination rectangle, in pixels.
+ * @height: Height of thd destination rectangle, in pixels.
+ * @dith: Dithering method to use.
+ * @buf: Pointer to the pixel in the grayscale buffer that corresponds to the
+ * upper-left corner of the rectangular region to render.
+ * @rowstride: Offset between pixel rows in the grayscale buffer, in pixels.
+ * 
+ * Renders a grayscale buffer to a drawable.  Pixels are specified as 8-bit
+ * intensity values.  An image will thus look as a GGGGGG sequence of 8-bit
+ * values.
+ **/
+void
+xlib_draw_gray_image (Drawable drawable,
+		      GC gc,
+		      int x,
+		      int y,
+		      int width,
+		      int height,
+		      XlibRgbDither dith,
+		      unsigned char *buf,
+		      int rowstride)
+{
+  if (image_info->bpp == 1 &&
+      image_info->gray_cmap == NULL &&
+      (image_info->x_visual_info->class == PseudoColor ||
+       image_info->x_visual_info->class == GrayScale))
+    xlib_rgb_make_gray_cmap (image_info);
+  
+  if (dith == XLIB_RGB_DITHER_NONE || (dith == XLIB_RGB_DITHER_NORMAL &&
+				      !image_info->dith_default))
+    xlib_draw_rgb_image_core (drawable, gc, x, y, width, height,
+			      buf, 1, rowstride,
+			      image_info->conv_gray, NULL, 0, 0);
+  else
+    xlib_draw_rgb_image_core (drawable, gc, x, y, width, height,
+			      buf, 1, rowstride,
+			      image_info->conv_gray_d, NULL, 0, 0);
+}
+
+/**
+ * xlib_rgb_cmap_new:
+ * @colors: FIXME
+ * @n_colors: FIXME
+ * 
+ * FIXME
+ * 
+ * Return value: FIXME
+ **/
+XlibRgbCmap *
+xlib_rgb_cmap_new (guint32 *colors, int n_colors)
+{
+  XlibRgbCmap *cmap;
+  int i, j;
+  guint32 rgb;
+
+  if (n_colors < 0)
+    return NULL;
+  if (n_colors > 256)
+    return NULL;
+  cmap = malloc(sizeof(XlibRgbCmap));
+  memcpy (cmap->colors, colors, n_colors * sizeof(guint32));
+  if (image_info->bpp == 1 &&
+      (image_info->x_visual_info->class == PseudoColor ||
+       image_info->x_visual_info->class == GrayScale))
+    for (i = 0; i < n_colors; i++)
+      {
+	rgb = colors[i];
+	j = ((rgb & 0xf00000) >> 12) |
+		   ((rgb & 0xf000) >> 8) |
+		   ((rgb & 0xf0) >> 4);
+#ifdef VERBOSE
+	printf ("%d %x %x %d\n", i, j, colorcube[j]);
+#endif
+	cmap->lut[i] = colorcube[j];
+      }
+  return cmap;
+}
+
+/**
+ * xlib_rgb_cmap_free:
+ * @cmap: An XlibRGB colormap.
+ * 
+ * Frees an XlibRGB colormap.
+ **/
+void
+xlib_rgb_cmap_free (XlibRgbCmap *cmap)
+{
+  free (cmap);
+}
+
+/**
+ * xlib_draw_indexed_image:
+ * @drawable: FIXME
+ * @gc: FIXME
+ * @x: FIXME
+ * @y: FIXME
+ * @width: FIXME
+ * @height: FIXME
+ * @dith: FIXME
+ * @buf: FIXME
+ * @rowstride: FIXME
+ * @cmap: FIXME
+ * 
+ * FIXME
+ **/
+void
+xlib_draw_indexed_image (Drawable drawable,
+			GC gc,
+			int x,
+			int y,
+			int width,
+			int height,
+			XlibRgbDither dith,
+			unsigned char *buf,
+			int rowstride,
+			XlibRgbCmap *cmap)
+{
+  if (dith == XLIB_RGB_DITHER_NONE || (dith == XLIB_RGB_DITHER_NORMAL &&
+				       !image_info->dith_default))
+    xlib_draw_rgb_image_core (drawable, gc, x, y, width, height,
+			      buf, 1, rowstride,
+			      image_info->conv_indexed, cmap, 0, 0);
+  else
+    xlib_draw_rgb_image_core (drawable, gc, x, y, width, height,
+			      buf, 1, rowstride,
+			      image_info->conv_indexed_d, cmap, 0, 0);
+}
+
+/**
+ * xlib_rgb_ditherable:
+ * 
+ * Queries whether XlibRGB supports dithering for its chosen visual.
+ * 
+ * Return value: TRUE if dithering can be performed for the visual that XlibRGB
+ * is using, FALSE otherwise.
+ **/
+Bool
+xlib_rgb_ditherable (void)
+{
+  return (image_info->conv != image_info->conv_d);
+}
+
+/**
+ * xlib_rgb_get_cmap:
+ * 
+ * Queries the X colormap that XlibRGB is using.
+ * 
+ * Return value: An X colormap.
+ **/
+Colormap
+xlib_rgb_get_cmap (void)
+{
+  /* xlib_rgb_init (); */
+  if (image_info)
+    return image_info->cmap;
+  else
+    return 0;
+}
+
+/**
+ * xlib_rgb_get_visual:
+ * 
+ * Queries the visual that XlibRGB is using.
+ * 
+ * Return value: An X visual.
+ **/
+Visual *
+xlib_rgb_get_visual (void)
+{
+  /* xlib_rgb_init (); */
+  if (image_info)
+    return image_info->x_visual_info->visual;
+  else
+    return 0;
+}
+
+/**
+ * xlib_rgb_get_visual_info:
+ * 
+ * Queries the visual info structure for the visual that XlibRGB is using.
+ * 
+ * Return value: An XVisualInfo structure.
+ **/
+XVisualInfo *
+xlib_rgb_get_visual_info (void)
+{
+  /* xlib_rgb_init (); */
+  if (image_info)
+    return image_info->x_visual_info;
+  else
+    return 0;
+}
+
+/**
+ * xlib_rgb_get_depth:
+ * 
+ * Queries the depth of the visual that XlibRGB is using.
+ * 
+ * Return value: Bit depth.
+ **/
+int
+xlib_rgb_get_depth (void)
+{
+  XVisualInfo * v = xlib_rgb_get_visual_info();
+
+  if (v)
+  {
+    return v->depth;
+  }
+
+  return 0;
+}
+
+/**
+ * xlib_rgb_get_display:
+ * 
+ * Queries the X display that XlibRGB is using.
+ * 
+ * Return value: An X display.
+ **/
+Display *
+xlib_rgb_get_display (void)
+{
+  if (image_info)
+    return image_info->display;
+  
+  return NULL;
+}
+
+/**
+ * xlib_rgb_get_screen:
+ * 
+ * Queries the screen that XlibRGB is using.
+ * 
+ * Return value: An X screen.
+ **/
+Screen *
+xlib_rgb_get_screen (void)
+{
+  if (image_info)
+    return image_info->screen;
+  
+  return NULL;
+}
diff --git a/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlibrgb.h b/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlibrgb.h
new file mode 100644
index 0000000000..7d0b92bbdc
--- /dev/null
+++ b/contrib/gdk-pixbuf-xlib/gdk-pixbuf-xlibrgb.h
@@ -0,0 +1,195 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "MPL"); you may not use this file except in
+ * compliance with the MPL.  You may obtain a copy of the MPL at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the MPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the MPL
+ * for the specific language governing rights and limitations under the
+ * MPL.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * terms of the GNU Library General Public License (the "LGPL"), in
+ * which case the provisions of the LGPL are applicable instead of
+ * those above.  If you wish to allow use of your version of this file
+ * only under the terms of the LGPL and not to allow others to use
+ * your version of this file under the MPL, indicate your decision by
+ * deleting the provisions above and replace them with the notice and
+ * other provisions required by the LGPL.  If you do not delete the
+ * provisions above, a recipient may use your version of this file
+ * under either the MPL or the LGPL.
+ */
+
+/*
+ * This code is derived from GdkRgb.
+ * For more information on GdkRgb, see http://www.levien.com/gdkrgb/
+ * Raph Levien <raph@acm.org>
+ */
+
+/* Ported by Christopher Blizzard to Xlib.  With permission from the
+ * original authors of this file, the contents of this file are also
+ * redistributable under the terms of the Mozilla Public license.  For
+ * information about the Mozilla Public License, please see the
+ * license information at http://www.mozilla.org/MPL/
+ */
+
+/* This code is copyright the following authors:
+ * Raph Levien          <raph@acm.org>
+ * Manish Singh         <manish@gtk.org>
+ * Tim Janik            <timj@gtk.org>
+ * Peter Mattis         <petm@xcf.berkeley.edu>
+ * Spencer Kimball      <spencer@xcf.berkeley.edu>
+ * Josh MacDonald       <jmacd@xcf.berkeley.edu>
+ * Christopher Blizzard <blizzard@redhat.com>
+ * Owen Taylor          <otaylor@redhat.com>
+ * Shawn T. Amundson    <amundson@gtk.org>
+*/
+
+
+#ifndef __XLIB_RGB_H__
+#define __XLIB_RGB_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/Xos.h>
+#include <X11/Intrinsic.h>
+
+#include <glib.h>
+
+typedef struct _XlibRgbCmap XlibRgbCmap;
+
+struct _XlibRgbCmap {
+  unsigned int colors[256];
+  unsigned char lut[256]; /* for 8-bit modes */
+};
+
+void
+xlib_rgb_init (Display *display, Screen *screen);
+void
+xlib_rgb_init_with_depth (Display *display, Screen *screen, int prefDepth);
+
+unsigned long
+xlib_rgb_xpixel_from_rgb (guint32 rgb);
+
+void
+xlib_rgb_gc_set_foreground (GC gc, guint32 rgb);
+
+void
+xlib_rgb_gc_set_background (GC gc, guint32 rgb);
+
+typedef enum
+{
+  XLIB_RGB_DITHER_NONE,
+  XLIB_RGB_DITHER_NORMAL,
+  XLIB_RGB_DITHER_MAX
+} XlibRgbDither;
+
+void
+xlib_draw_rgb_image (Drawable drawable,
+		     GC gc,
+		     int x,
+		     int y,
+		     int width,
+		     int height,
+		     XlibRgbDither dith,
+		     unsigned char *rgb_buf,
+		     int rowstride);
+
+void
+xlib_draw_rgb_image_dithalign (Drawable drawable,
+			       GC gc,
+			       int x,
+			       int y,
+			       int width,
+			       int height,
+			       XlibRgbDither dith,
+			       unsigned char *rgb_buf,
+			       int rowstride,
+			       int xdith,
+			       int ydith);
+
+void
+xlib_draw_rgb_32_image (Drawable drawable,
+			GC gc,
+			int x,
+			int y,
+			int width,
+			int height,
+			XlibRgbDither dith,
+			unsigned char *buf,
+			int rowstride);
+
+void
+xlib_draw_gray_image (Drawable drawable,
+		      GC gc,
+		      int x,
+		      int y,
+		      int width,
+		      int height,
+		      XlibRgbDither dith,
+		      unsigned char *buf,
+		      int rowstride);
+
+XlibRgbCmap *
+xlib_rgb_cmap_new (guint32 *colors, int n_colors);
+
+void
+xlib_rgb_cmap_free (XlibRgbCmap *cmap);
+
+void
+xlib_draw_indexed_image (Drawable drawable,
+                         GC gc,
+                         int x,
+                         int y,
+                         int width,
+                         int height,
+                         XlibRgbDither dith,
+                         unsigned char *buf,
+                         int rowstride,
+                         XlibRgbCmap *cmap);
+
+/* Below are some functions which are primarily useful for debugging
+   and experimentation. */
+Bool
+xlib_rgb_ditherable (void);
+
+void
+xlib_rgb_set_verbose (Bool verbose);
+
+/* experimental colormap stuff */
+void
+xlib_rgb_set_install (Bool install);
+
+void
+xlib_rgb_set_min_colors (int min_colors);
+
+Colormap
+xlib_rgb_get_cmap (void);
+
+Visual *
+xlib_rgb_get_visual (void);
+
+XVisualInfo *
+xlib_rgb_get_visual_info (void);
+
+int
+xlib_rgb_get_depth (void);
+
+Display *
+xlib_rgb_get_display (void);
+
+Screen *
+xlib_rgb_get_screen (void);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+
+#endif /* __XLIB_RGB_H__ */