Adding upstream version 0.5.1upstream/0.5.1

3 files changed, 753 insertions, 0 deletions

diff --git a/w3mimg/x11/.cvsignore b/w3mimg/x11/.cvsignore
new file mode 100644
index 0000000..f3c7a7c
--- /dev/null
+++ b/w3mimg/x11/.cvsignore
@@ -0,0 +1 @@
+Makefile
diff --git a/w3mimg/x11/Makefile.in b/w3mimg/x11/Makefile.in
new file mode 100644
index 0000000..fb30e3a
--- /dev/null
+++ b/w3mimg/x11/Makefile.in
@@ -0,0 +1,29 @@
+#
+# w3mimg/x11/Makefile
+#
+#
+@SET_MAKE@
+SHELL=@SHELL@
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+VPATH = $(srcdir):.
+CFLAGS=$(OPTS) -I../.. -I$(top_srcdir) -I$(srcdir) @CFLAGS@ @CPPFLAGS@ @DEFS@ $(IMGCFLAGS)
+RM=rm
+
+IMGCFLAGS=@IMGX11CFLAGS@
+OBJS=x11_w3mimg.o
+
+all: x11_w3mimg.o
+
+x11_w3mimg.o: x11_w3mimg.c
+	$(CC) $(CFLAGS) -c $<
+
+clean:
+	@-$(RM) -f *.o
+
+distclean: clean
+	-$(RM) -f Makefile
+
+#
+
+
diff --git a/w3mimg/x11/x11_w3mimg.c b/w3mimg/x11/x11_w3mimg.c
new file mode 100644
index 0000000..8c9cef2
--- /dev/null
+++ b/w3mimg/x11/x11_w3mimg.c
@@ -0,0 +1,723 @@
+/* $Id: x11_w3mimg.c,v 1.25 2003/07/13 16:19:10 ukai Exp $ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include "config.h"
+
+#if defined(USE_IMLIB)
+#include <Imlib.h>
+#elif defined(USE_IMLIB2)
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <Imlib2.h>
+#elif defined(USE_GDKPIXBUF)
+#include <gdk-pixbuf/gdk-pixbuf-xlib.h>
+#else
+#error no Imlib and GdkPixbuf support
+#endif
+
+#include "w3mimg/w3mimg.h"
+
+#define OFFSET_X	2
+#define OFFSET_Y	2
+
+struct x11_info {
+    Display *display;
+    Window window, parent;
+    unsigned long background_pixel;
+    GC imageGC;
+#if defined(USE_IMLIB)
+    ImlibData *id;
+#elif defined(USE_GDKPIXBUF)
+    int init_flag;
+#endif
+};
+
+#if defined(USE_GDKPIXBUF)
+struct x11_image {
+    int total;
+    int no;
+    int wait;
+    int delay;
+    Pixmap *pixmap;
+};
+
+static void
+get_animation_size(GdkPixbufAnimation * animation, int *w, int *h, int *delay)
+{
+    GList *frames;
+    int iw, ih, n, i, d = -1;
+
+    frames = gdk_pixbuf_animation_get_frames(animation);
+    n = gdk_pixbuf_animation_get_num_frames(animation);
+    *w = gdk_pixbuf_animation_get_width(animation);
+    *h = gdk_pixbuf_animation_get_height(animation);
+    for (i = 0; i < n; i++) {
+	GdkPixbufFrame *frame;
+	GdkPixbuf *pixbuf;
+	int tmp;
+
+	frame = (GdkPixbufFrame *) g_list_nth_data(frames, i);
+	tmp = gdk_pixbuf_frame_get_delay_time(frame);
+	if (tmp > d)
+	    d = tmp;
+	pixbuf = gdk_pixbuf_frame_get_pixbuf(frame);
+	iw = gdk_pixbuf_frame_get_x_offset(frame)
+	    + gdk_pixbuf_get_width(pixbuf);
+	ih = gdk_pixbuf_frame_get_y_offset(frame)
+	    + gdk_pixbuf_get_height(pixbuf);
+	if (iw > *w)
+	    *w = iw;
+	if (ih > *h)
+	    *h = ih;
+    }
+    if (delay)
+	*delay = d;
+}
+
+#endif
+
+static int
+x11_init(w3mimg_op * self)
+{
+    struct x11_info *xi;
+    if (self == NULL)
+	return 0;
+    xi = (struct x11_info *)self->priv;
+    if (xi == NULL)
+	return 0;
+#if defined(USE_IMLIB)
+    if (!xi->id) {
+	xi->id = Imlib_init(xi->display);
+	if (!xi->id)
+	    return 0;
+    }
+#elif defined(USE_GDKPIXBUF)
+    if (!xi->init_flag) {
+	gdk_pixbuf_xlib_init(xi->display, 0);
+	xi->init_flag = TRUE;
+    }
+#endif
+    if (!xi->imageGC) {
+	xi->imageGC = XCreateGC(xi->display, xi->parent, 0, NULL);
+	if (!xi->imageGC)
+	    return 0;
+    }
+    return 1;
+}
+
+static int
+x11_finish(w3mimg_op * self)
+{
+    struct x11_info *xi;
+    if (self == NULL)
+	return 0;
+    xi = (struct x11_info *)self->priv;
+    if (xi == NULL)
+	return 0;
+    if (xi->imageGC) {
+	XFreeGC(xi->display, xi->imageGC);
+	xi->imageGC = NULL;
+    }
+    return 1;
+}
+
+static int
+x11_clear(w3mimg_op * self, int x, int y, int w, int h)
+{
+    struct x11_info *xi;
+    if (self == NULL)
+	return 0;
+    xi = (struct x11_info *)self->priv;
+    if (xi == NULL)
+	return 0;
+
+    if (x < 0)
+	x = 0;
+    if (y < 0)
+	y = 0;
+
+    XClearArea(xi->display, xi->window, x, y, w, h, False);
+    return 1;
+}
+
+static int
+x11_active(w3mimg_op * self)
+{
+    struct x11_info *xi;
+    if (self == NULL)
+	return 0;
+    xi = (struct x11_info *)self->priv;
+    if (xi == NULL)
+	return 0;
+    if (!xi->imageGC)
+	return 0;
+    return 1;
+}
+
+static void
+x11_set_background(w3mimg_op * self, char *background)
+{
+    XColor screen_def, exact_def;
+    struct x11_info *xi;
+    if (self == NULL)
+	return;
+    xi = (struct x11_info *)self->priv;
+    if (xi == NULL)
+	return;
+
+    if (background &&
+	XAllocNamedColor(xi->display, DefaultColormap(xi->display, 0),
+			 background, &screen_def, &exact_def))
+	xi->background_pixel = screen_def.pixel;
+    else {
+	Pixmap p;
+	GC gc;
+	XImage *i;
+
+	p = XCreatePixmap(xi->display, xi->window, 1, 1,
+			  DefaultDepth(xi->display, 0));
+	gc = XCreateGC(xi->display, xi->window, 0, NULL);
+	if (!p || !gc)
+	    exit(1);		/* XXX */
+	XCopyArea(xi->display, xi->window, p, gc,
+		  (self->offset_x >= 1) ? (self->offset_x - 1) : 0,
+		  (self->offset_y >= 1) ? (self->offset_y - 1) : 0,
+		  1, 1, 0, 0);
+	i = XGetImage(xi->display, p, 0, 0, 1, 1, -1, ZPixmap);
+	if (!i)
+	    exit(1);
+	xi->background_pixel = XGetPixel(i, 0, 0);
+	XDestroyImage(i);
+	XFreeGC(xi->display, gc);
+	XFreePixmap(xi->display, p);
+    }
+}
+
+static void
+x11_sync(w3mimg_op * self)
+{
+    struct x11_info *xi;
+    if (self == NULL)
+	return;
+    xi = (struct x11_info *)self->priv;
+    if (xi == NULL)
+	return;
+    XSync(xi->display, False);
+}
+
+static void
+x11_close(w3mimg_op * self)
+{
+    /* XCloseDisplay(xi->display); */
+}
+
+#if defined(USE_GDKPIXBUF)
+static struct x11_image *
+x11_img_new(struct x11_info *xi, int w, int h, int n)
+{
+    struct x11_image *img = NULL;
+    int i;
+
+    img = malloc(sizeof(*img));
+    if (!img)
+	goto ERROR;
+
+    img->pixmap = calloc(n, sizeof(*(img->pixmap)));
+    if (!img->pixmap)
+	goto ERROR;
+
+    for (i = 0; i < n; i++) {
+	img->pixmap[i] = XCreatePixmap(xi->display, xi->parent, w, h,
+				       DefaultDepth(xi->display, 0));
+	if (!img->pixmap[i])
+	    goto ERROR;
+
+	XSetForeground(xi->display, xi->imageGC, xi->background_pixel);
+	XFillRectangle(xi->display, (Pixmap) img->pixmap[i], xi->imageGC, 0, 0,
+		       w, h);
+    }
+
+    img->no = 0;
+    img->total = n;
+    img->wait = 0;
+    img->delay = -1;
+
+    return img;
+  ERROR:
+    if (img) {
+	if (img->pixmap) {
+	    for (i = 0; i < n; i++) {
+		if (img->pixmap[i])
+		    XFreePixmap(xi->display, (Pixmap) img->pixmap[i]);
+	    }
+	    free(img->pixmap);
+	}
+	free(img);
+    }
+    return NULL;
+}
+
+static GdkPixbuf *
+resize_image(GdkPixbuf * pixbuf, int width, int height)
+{
+    GdkPixbuf *resized_pixbuf;
+    int w, h;
+
+    if (pixbuf == NULL)
+	return NULL;
+    w = gdk_pixbuf_get_width(pixbuf);
+    h = gdk_pixbuf_get_height(pixbuf);
+    if (width < 1 || height < 1)
+	return pixbuf;
+    if (w == width && h == height)
+	return pixbuf;
+    resized_pixbuf =
+	gdk_pixbuf_scale_simple(pixbuf, width, height, GDK_INTERP_BILINEAR);
+    if (resized_pixbuf == NULL)
+	return NULL;
+    return resized_pixbuf;
+}
+#endif
+
+static int
+x11_load_image(w3mimg_op * self, W3MImage * img, char *fname, int w, int h)
+{
+    struct x11_info *xi;
+#if defined(USE_IMLIB)
+    ImlibImage *im;
+#elif defined(USE_IMLIB2)
+    Imlib_Image im;
+#elif defined(USE_GDKPIXBUF)
+    GdkPixbufAnimation *animation;
+    GList *frames;
+    int i, j, iw, ih, n, frame_num, delay, max_anim;
+    double ratio_w, ratio_h;
+    struct x11_image *ximg;
+    Pixmap tmp_pixmap;
+#endif
+
+    if (self == NULL)
+	return 0;
+    xi = (struct x11_info *)self->priv;
+    if (xi == NULL)
+	return 0;
+
+#if defined(USE_IMLIB)
+    im = Imlib_load_image(xi->id, fname);
+    if (!im)
+	return 0;
+    if (w <= 0)
+	w = im->rgb_width;
+    if (h <= 0)
+	h = im->rgb_height;
+    img->pixmap = (void *)XCreatePixmap(xi->display, xi->parent, w, h,
+					DefaultDepth(xi->display, 0));
+    if (!img->pixmap)
+	return 0;
+    XSetForeground(xi->display, xi->imageGC, xi->background_pixel);
+    XFillRectangle(xi->display, (Pixmap) img->pixmap, xi->imageGC, 0, 0, w, h);
+    Imlib_paste_image(xi->id, im, (Pixmap) img->pixmap, 0, 0, w, h);
+    Imlib_kill_image(xi->id, im);
+#elif defined(USE_IMLIB2)
+    im = imlib_load_image(fname);
+    if (!im)
+	return 0;
+    imlib_context_set_image(im);
+    if (w <= 0)
+	w = imlib_image_get_width();
+    if (h <= 0)
+	h = imlib_image_get_height();
+    img->pixmap = (void *)XCreatePixmap(xi->display, xi->parent, w, h,
+					DefaultDepth(xi->display, 0));
+    if (!img->pixmap)
+	return 0;
+    XSetForeground(xi->display, xi->imageGC, xi->background_pixel);
+    XFillRectangle(xi->display, (Pixmap) img->pixmap, xi->imageGC, 0, 0, w, h);
+    imlib_context_set_display(xi->display);
+    imlib_context_set_visual(DefaultVisual(xi->display, 0));
+    imlib_context_set_colormap(DefaultColormap(xi->display, 0));
+    imlib_context_set_drawable((Drawable) img->pixmap);
+    imlib_render_image_on_drawable_at_size(0, 0, w, h);
+    imlib_free_image();
+#elif defined(USE_GDKPIXBUF)
+    max_anim = self->max_anim;
+    animation = gdk_pixbuf_animation_new_from_file(fname);
+    if (!animation)
+	return 0;
+    frames = gdk_pixbuf_animation_get_frames(animation);
+    frame_num = n = gdk_pixbuf_animation_get_num_frames(animation);
+
+    get_animation_size(animation, &iw, &ih, &delay);
+    if (delay <= 0)
+	max_anim = -1;
+
+    if (max_anim < 0) {
+	frame_num = (-max_anim > n) ? n : -max_anim;
+    }
+    else if (max_anim > 0) {
+	frame_num = n = (max_anim > n) ? n : max_anim;
+    }
+
+    if (w < 1 || h < 1) {
+	w = iw;
+	h = ih;
+	ratio_w = ratio_h = 1;
+    }
+    else {
+	ratio_w = 1.0 * w / iw;
+	ratio_h = 1.0 * h / ih;
+    }
+    tmp_pixmap = XCreatePixmap(xi->display, xi->parent, w, h,
+			       DefaultDepth(xi->display, 0));
+    XFillRectangle(xi->display, (Pixmap) tmp_pixmap, xi->imageGC, 0, 0, w, h);
+    if (!tmp_pixmap) {
+	gdk_pixbuf_animation_unref(animation);
+	return 0;
+    }
+    ximg = x11_img_new(xi, w, h, frame_num);
+    if (!ximg) {
+	XFreePixmap(xi->display, tmp_pixmap);
+	gdk_pixbuf_animation_unref(animation);
+	return 0;
+    }
+    for (j = 0; j < n; j++) {
+	GdkPixbufFrame *frame;
+	GdkPixbuf *org_pixbuf, *pixbuf;
+	int width, height, ofstx, ofsty;
+
+	if (max_anim < 0) {
+	    i = (j - n + frame_num > 0) ? (j - n + frame_num) : 0;
+	}
+	else {
+	    i = j;
+	}
+	frame = (GdkPixbufFrame *) g_list_nth_data(frames, j);
+	org_pixbuf = gdk_pixbuf_frame_get_pixbuf(frame);
+	ofstx = gdk_pixbuf_frame_get_x_offset(frame);
+	ofsty = gdk_pixbuf_frame_get_y_offset(frame);
+	delay = gdk_pixbuf_frame_get_delay_time(frame);
+	width = gdk_pixbuf_get_width(org_pixbuf);
+	height = gdk_pixbuf_get_height(org_pixbuf);
+
+	if (ofstx == 0 && ofsty == 0 && width == w && height == h) {
+	    pixbuf = resize_image(org_pixbuf, w, h);
+	}
+	else {
+	    pixbuf =
+		resize_image(org_pixbuf, width * ratio_w, height * ratio_h);
+	    ofstx *= ratio_w;
+	    ofsty *= ratio_h;
+	}
+	width = gdk_pixbuf_get_width(pixbuf);
+	height = gdk_pixbuf_get_height(pixbuf);
+
+	if (delay > ximg->delay)
+	    ximg->delay = delay;
+
+	XCopyArea(xi->display, tmp_pixmap, ximg->pixmap[i],
+		  xi->imageGC, 0, 0, w, h, 0, 0);
+	gdk_pixbuf_xlib_render_to_drawable_alpha(pixbuf,
+						 (Drawable) ximg->pixmap[i], 0,
+						 0, ofstx, ofsty, width,
+						 height,
+						 GDK_PIXBUF_ALPHA_BILEVEL, 1,
+						 XLIB_RGB_DITHER_NORMAL, 0, 0);
+
+	switch (gdk_pixbuf_frame_get_action(frame)) {
+	case GDK_PIXBUF_FRAME_RETAIN:
+	    XCopyArea(xi->display, ximg->pixmap[i], tmp_pixmap,
+		      xi->imageGC, 0, 0, w, h, 0, 0);
+	    break;
+	case GDK_PIXBUF_FRAME_DISPOSE:
+	    break;
+	case GDK_PIXBUF_FRAME_REVERT:
+	    XCopyArea(xi->display, ximg->pixmap[0], tmp_pixmap,
+		      xi->imageGC, 0, 0, w, h, 0, 0);
+	    break;
+	default:
+	    XCopyArea(xi->display, ximg->pixmap[0], tmp_pixmap,
+		      xi->imageGC, 0, 0, w, h, 0, 0);
+	    break;
+	}
+
+
+	if (org_pixbuf != pixbuf)
+	    gdk_pixbuf_finalize(pixbuf);
+
+    }
+    XFreePixmap(xi->display, tmp_pixmap);
+    gdk_pixbuf_animation_unref(animation);
+    img->pixmap = ximg;
+#endif
+
+    img->width = w;
+    img->height = h;
+    return 1;
+}
+
+static int
+x11_show_image(w3mimg_op * self, W3MImage * img, int sx, int sy, int sw,
+	       int sh, int x, int y)
+{
+    struct x11_info *xi;
+#if defined(USE_GDKPIXBUF)
+    struct x11_image *ximg = img->pixmap;
+    int i;
+#endif
+    if (self == NULL)
+	return 0;
+
+    if (img->pixmap == NULL)
+	return 0;
+
+    xi = (struct x11_info *)self->priv;
+    if (xi == NULL)
+	return 0;
+
+#if defined(USE_IMLIB) || defined(USE_IMLIB2)
+    XCopyArea(xi->display, (Pixmap) img->pixmap, xi->window, xi->imageGC,
+	      sx, sy,
+	      (sw ? sw : img->width),
+	      (sh ? sh : img->height), x + self->offset_x, y + self->offset_y);
+#elif defined(USE_GDKPIXBUF)
+#define WAIT_CNT 4
+    if (ximg->delay <= 0)
+	i = ximg->total - 1;
+    else
+	i = ximg->no;
+    XCopyArea(xi->display, ximg->pixmap[i], xi->window, xi->imageGC,
+	      sx, sy,
+	      (sw ? sw : img->width),
+	      (sh ? sh : img->height), x + self->offset_x, y + self->offset_y);
+    if (ximg->total > 1) {
+	if (ximg->wait > WAIT_CNT) {
+	    ximg->wait = 0;
+	    if (i < ximg->total - 1)
+		ximg->no = i + 1;
+	    else
+		ximg->no = 0;
+	}
+	ximg->wait += 1;
+    }
+#endif
+    return 1;
+}
+
+static void
+x11_free_image(w3mimg_op * self, W3MImage * img)
+{
+    struct x11_info *xi;
+    if (self == NULL)
+	return;
+    xi = (struct x11_info *)self->priv;
+    if (xi == NULL)
+	return;
+#if defined(USE_IMLIB) || defined(USE_IMLIB2)
+    if (img && img->pixmap) {
+	XFreePixmap(xi->display, (Pixmap) img->pixmap);
+	img->pixmap = NULL;
+	img->width = 0;
+	img->height = 0;
+    }
+#elif defined(USE_GDKPIXBUF)
+    if (img && img->pixmap) {
+	struct x11_image *ximg = img->pixmap;
+	int i, n;
+	if (ximg->pixmap) {
+	    n = ximg->total;
+	    for (i = 0; i < n; i++) {
+		if (ximg->pixmap[i])
+		    XFreePixmap(xi->display, (Pixmap) ximg->pixmap[i]);
+	    }
+	    free(ximg->pixmap);
+	}
+	free(ximg);
+	img->pixmap = NULL;
+	img->width = 0;
+	img->height = 0;
+    }
+#endif
+}
+
+static int
+x11_get_image_size(w3mimg_op * self, W3MImage * img, char *fname, int *w,
+		   int *h)
+{
+    struct x11_info *xi;
+#if defined(USE_IMLIB)
+    ImlibImage *im;
+#elif defined(USE_IMLIB2)
+    Imlib_Image im;
+#elif defined(USE_GDKPIXBUF)
+    GdkPixbufAnimation *animation;
+#endif
+
+    if (self == NULL)
+	return 0;
+    xi = (struct x11_info *)self->priv;
+    if (xi == NULL)
+	return 0;
+
+#if defined(USE_IMLIB)
+    im = Imlib_load_image(xi->id, fname);
+    if (!im)
+	return 0;
+
+    *w = im->rgb_width;
+    *h = im->rgb_height;
+    Imlib_kill_image(xi->id, im);
+#elif defined(USE_IMLIB2)
+    im = imlib_load_image(fname);
+    if (im == NULL)
+	return 0;
+
+    imlib_context_set_image(im);
+    *w = imlib_image_get_width();
+    *h = imlib_image_get_height();
+    imlib_free_image();
+#elif defined(USE_GDKPIXBUF)
+    animation = gdk_pixbuf_animation_new_from_file(fname);
+    if (!animation)
+	return 0;
+
+    get_animation_size(animation, w, h, NULL);
+    gdk_pixbuf_animation_unref(animation);
+#endif
+    return 1;
+}
+
+/* *INDENT-OFF* */
+/*
+  xterm/kterm/hanterm/cxterm
+    top window (WINDOWID)
+      +- text window
+           +- scrollbar
+  rxvt/aterm/Eterm/wterm
+    top window (WINDOWID)
+      +- text window
+      +- scrollbar
+      +- menubar (etc.)
+  gnome-terminal
+    top window
+      +- text window (WINDOWID)
+      +- scrollbar
+      +- menubar
+  mlterm (-s)
+    top window
+      +- text window (WINDOWID)
+      +- scrollbar
+  mlterm
+    top window = text window (WINDOWID)
+
+  powershell
+    top window
+      +- window
+      |    +- text window
+      |    +- scrollbar
+      +- menubar (etc.)
+  dtterm
+    top window
+      +- window
+           +- window
+           |    +- window
+           |         +- text window
+           |         +- scrollbar
+           +- menubar
+  hpterm
+    top window
+      +- window
+           +- text window
+           +- scrollbar
+           +- (etc.)
+*/
+/* *INDENT-ON* */
+
+w3mimg_op *
+w3mimg_x11open()
+{
+    w3mimg_op *wop = NULL;
+    struct x11_info *xi = NULL;
+    char *id;
+    int revert, i;
+    unsigned int nchildren;
+    XWindowAttributes attr;
+    Window root, *children;
+
+    wop = (w3mimg_op *) malloc(sizeof(w3mimg_op));
+    if (wop == NULL)
+	return NULL;
+    memset(wop, 0, sizeof(w3mimg_op));
+
+    xi = (struct x11_info *)malloc(sizeof(struct x11_info));
+    if (xi == NULL)
+	goto error;
+    memset(xi, 0, sizeof(struct x11_info));
+
+    xi->display = XOpenDisplay(NULL);
+    if (xi->display == NULL) {
+	goto error;
+    }
+    if ((id = getenv("WINDOWID")) != NULL)
+	xi->window = (Window) atoi(id);
+    else
+	XGetInputFocus(xi->display, &xi->window, &revert);
+    if (!xi->window)
+	exit(1);
+
+    XGetWindowAttributes(xi->display, xi->window, &attr);
+    wop->width = attr.width;
+    wop->height = attr.height;
+
+    while (1) {
+	Window p_window;
+
+	XQueryTree(xi->display, xi->window, &root, &xi->parent,
+		   &children, &nchildren);
+	p_window = xi->window;
+	for (i = 0; i < nchildren; i++) {
+	    XGetWindowAttributes(xi->display, children[i], &attr);
+	    if (attr.width > wop->width * 0.7 &&
+		attr.height > wop->height * 0.7) {
+		/* maybe text window */
+		wop->width = attr.width;
+		wop->height = attr.height;
+		xi->window = children[i];
+	    }
+	}
+	if (p_window == xi->window)
+	    break;
+    }
+    wop->offset_x = OFFSET_X;
+    for (i = 0; i < nchildren; i++) {
+	XGetWindowAttributes(xi->display, children[i], &attr);
+	if (attr.x <= 0 && attr.width < 30 && attr.height > wop->height * 0.7) {
+	    /* scrollbar of xterm/kterm ? */
+	    wop->offset_x += attr.x + attr.width + attr.border_width * 2;
+	    break;
+	}
+    }
+    wop->offset_y = OFFSET_Y;
+
+    wop->priv = xi;
+
+    wop->init = x11_init;
+    wop->finish = x11_finish;
+    wop->active = x11_active;
+    wop->set_background = x11_set_background;
+    wop->sync = x11_sync;
+    wop->close = x11_close;
+    wop->clear = x11_clear;
+
+    wop->load_image = x11_load_image;
+    wop->show_image = x11_show_image;
+    wop->free_image = x11_free_image;
+    wop->get_image_size = x11_get_image_size;
+
+    return wop;
+  error:
+    if (xi)
+	free(xi);
+    free(wop);
+    return NULL;
+}