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New function to allow wrapping a native pixmap without a server roundtrip.

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2006-03-29  Matthias Clasen <mclasen@redhat.com>

        * gdk/gdk.symbols:
        * gdk/gdkpixmap.h:
        * gdk/win32/gdkpixmap-win32.c:
        * gdk/x11/gdkpixmap-x11.c (gdk_pixmap_foreign_new_for_screen):
        New function to allow wrapping a native pixmap without
        a server roundtrip.  (#334954, David Baron)
This commit is contained in:
Matthias Clasen
2006-03-30 04:08:51 +00:00
committed by Matthias Clasen
parent 8910e9333d
commit 7e6f1345a9
7 changed files with 85 additions and 7 deletions
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59
gdk/x11/gdkpixmap-x11.c
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@ -344,11 +344,9 @@ GdkPixmap *
gdk_pixmap_foreign_new_for_display (GdkDisplay *display,
GdkNativeWindow anid)
{
GdkPixmap *pixmap;
GdkDrawableImplX11 *draw_impl;
GdkPixmapImplX11 *pix_impl;
Pixmap xpixmap;
Window root_return;
GdkScreen *screen;
int x_ret, y_ret;
unsigned int w_ret, h_ret, bw_ret, depth_ret;
@ -367,19 +365,66 @@ gdk_pixmap_foreign_new_for_display (GdkDisplay *display,
xpixmap, &root_return,
&x_ret, &y_ret, &w_ret, &h_ret, &bw_ret, &depth_ret))
return NULL;
screen = _gdk_x11_display_screen_for_xrootwin (display, root_return);
return gdk_pixmap_foreign_new_for_screen (screen, anid, w_ret, h_ret, depth_ret);
}
/**
* gdk_pixmap_foreign_new_for_screen:
* @screen: a #GdkScreen
* @anid: a native pixmap handle
* @width: the width of the pixmap identified by @anid
* @height: the height of the pixmap identified by @anid
* @depth: the depth of the pixmap identified by @anid
*
* Wraps a native pixmap in a #GdkPixmap.
* This may fail if the pixmap has been destroyed.
*
* For example in the X backend, a native pixmap handle is an Xlib
* <type>XID</type>.
*
* This function is an alternative to gdk_pixmap_foreign_new_for_display()
* for cases where the dimensions of the pixmap are known. For the X
* backend, this avoids a roundtrip to the server.
*
* Return value: the newly-created #GdkPixmap wrapper for the
* native pixmap or %NULL if the pixmap has been destroyed.
*
* Since: 2.10
*/
GdkPixmap *
gdk_pixmap_foreign_new_for_screen (GdkScreen *screen,
GdkNativeWindow anid,
gint width,
gint height,
gint depth)
{
Pixmap xpixmap;
GdkPixmap *pixmap;
GdkDrawableImplX11 *draw_impl;
GdkPixmapImplX11 *pix_impl;
g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
g_return_val_if_fail (anid != 0, NULL);
g_return_val_if_fail (width > 0, NULL);
g_return_val_if_fail (height > 0, NULL);
g_return_val_if_fail (depth > 0, NULL);
pixmap = g_object_new (gdk_pixmap_get_type (), NULL);
draw_impl = GDK_DRAWABLE_IMPL_X11 (GDK_PIXMAP_OBJECT (pixmap)->impl);
pix_impl = GDK_PIXMAP_IMPL_X11 (GDK_PIXMAP_OBJECT (pixmap)->impl);
draw_impl->wrapper = GDK_DRAWABLE (pixmap);
draw_impl->screen = _gdk_x11_display_screen_for_xrootwin (display, root_return);
xpixmap = anid;
draw_impl->screen = screen;
draw_impl->xid = xpixmap;
pix_impl->is_foreign = TRUE;
pix_impl->width = w_ret;
pix_impl->height = h_ret;
GDK_PIXMAP_OBJECT (pixmap)->depth = depth_ret;
pix_impl->width = width;
pix_impl->height = height;
GDK_PIXMAP_OBJECT (pixmap)->depth = depth;
_gdk_xid_table_insert (display, &GDK_PIXMAP_XID (pixmap), pixmap);