1 /* Common Lisp bindings for GTK+ v2.x
2 * Copyright 1999-2007 Espen S. Johnsen <espen@users.sf.net>
4 * Permission is hereby granted, free of charge, to any person obtaining
5 * a copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sublicense, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
18 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
19 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
20 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
21 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 /* $Id: glue.c,v 1.9 2008-11-06 17:27:39 espen Exp $ */
28 #include <gdk-pixbuf/gdk-pixbuf.h>
30 #ifdef GDK_WINDOWING_X11
32 #elif defined (G_OS_WIN32)
33 #include <gdk/gdkwin32.h>
36 gint
clg_gdk_connection_number (GdkDisplay
*display
)
38 #ifdef GDK_WINDOWING_X11
39 return ConnectionNumber (GDK_DISPLAY_XDISPLAY (display
));
46 GdkWindow
*clg_gdk_cairo_surface_get_window (cairo_surface_t
*surface
)
48 /* If 'surface_info_key' had been public we would have had a
49 portable way to find the GdkWindow of a Cairo surface. */
51 #ifdef GDK_WINDOWING_X11
52 g_return_if_fail (cairo_surface_get_type (surface
) == CAIRO_SURFACE_TYPE_XLIB
);
54 Display
* display
= cairo_xlib_surface_get_display (surface
);
56 Drawable window
= cairo_xlib_surface_get_drawable (surface
);
58 return gdk_window_lookup_for_display (window
, display
);
62 #elif defined (G_OS_WIN32)
63 HDC hdc
= (HDC
)cairo_win32_surface_get_dc (surface
);
65 return gdk_window_lookup ((GdkNativeWindow
)hdc
);
73 void clg_gdk_pixbuf_swap_rgb (GdkPixbuf
*pixbuf
)
76 int n_channels
= gdk_pixbuf_get_n_channels (pixbuf
);
77 guchar
*p
, *pixels
= gdk_pixbuf_get_pixels (pixbuf
);
78 int width
= gdk_pixbuf_get_width (pixbuf
);
79 int height
= gdk_pixbuf_get_height (pixbuf
);
80 int rowstride
= gdk_pixbuf_get_rowstride (pixbuf
);
83 g_assert (gdk_pixbuf_get_bits_per_sample (pixbuf
) == 8);
84 g_assert (gdk_pixbuf_get_has_alpha (pixbuf
));
85 g_assert (n_channels
== 4);
87 for (y
= 0; y
< height
; y
++) {
88 for (x
= 0; x
< width
; x
++) {
89 p
= pixels
+ y
* rowstride
+ x
* n_channels
;