gtk2/gdk/gdkscreen.h
Owen Taylor 485fd85179 Fill in unused bits so they can be used for the depth-32 target case.
2005-05-09  Owen Taylor  <otaylor@redhat.com>

        * gdk/gdkrgb.c (gdk_rgb_convert_0888_br, gdk_rgb_convert_8880_br):
        Fill in unused bits so they can be used for the depth-32 target case.
        Rewrite so that that gives a marginal speedup rather than a
        marginal slowdown. (on x86)

        * gdk/gdkscreen.h gdk/x11/gdkscreen-x11.[ch] gdk/x11/gdkvisual-x11.c:
        Add gdk_screen_get_rgba_colormap/visual to get a visual for
        windows with an alpha channel, if one exists.

        * gdk/win32/gdkscreen-win32.c gdk/linux-fb/gdkscreen-fb.c:
        Stub out gdk_screen_get_rgba_colormap/visual.

        * gdk/x11/gdkcolor-x11.c (gdk_colormap_alloc_colors): computation of
        "unused" wasn't right for depth == 32, since it depended on
        shifting by 32.

        * gdk/gdkrgb.c: Fill in alpha bits with 1s. (Based on patch from
        Keith Packard,
        http://mail.gnome.org/archives/gtk-devel-list/2004-June/msg00080.html)

        * gdk/x11/gdkdrawable-x11.c (gdk_x11_drawable_get_picture):
        Implement again, without using Xft.

        * tests/testgtk.c: Add a test for windows with an alpha channel.
2005-05-09 22:54:10 +00:00

104 lines
3.8 KiB
C

/*
* gdkscreen.h
*
* Copyright 2001 Sun Microsystems Inc.
*
* Erwann Chenede <erwann.chenede@sun.com>
*
* 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_SCREEN_H__
#define __GDK_SCREEN_H__
#include "gdk/gdktypes.h"
#include "gdk/gdkdisplay.h"
G_BEGIN_DECLS
typedef struct _GdkScreenClass GdkScreenClass;
#define GDK_TYPE_SCREEN (gdk_screen_get_type ())
#define GDK_SCREEN(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_SCREEN, GdkScreen))
#define GDK_SCREEN_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_SCREEN, GdkScreenClass))
#define GDK_IS_SCREEN(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_SCREEN))
#define GDK_IS_SCREEN_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_SCREEN))
#define GDK_SCREEN_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_SCREEN, GdkScreenClass))
struct _GdkScreen
{
GObject parent_instance;
guint closed : 1;
GdkGC *normal_gcs[32];
GdkGC *exposure_gcs[32];
};
struct _GdkScreenClass
{
GObjectClass parent_class;
void (*size_changed) (GdkScreen *screen);
};
GType gdk_screen_get_type (void) G_GNUC_CONST;
GdkColormap *gdk_screen_get_default_colormap (GdkScreen *screen);
void gdk_screen_set_default_colormap (GdkScreen *screen,
GdkColormap *colormap);
GdkColormap* gdk_screen_get_system_colormap (GdkScreen *screen);
GdkVisual* gdk_screen_get_system_visual (GdkScreen *screen);
GdkColormap *gdk_screen_get_rgb_colormap (GdkScreen *screen);
GdkVisual * gdk_screen_get_rgb_visual (GdkScreen *screen);
GdkColormap *gdk_screen_get_rgba_colormap (GdkScreen *screen);
GdkVisual * gdk_screen_get_rgba_visual (GdkScreen *screen);
GdkWindow * gdk_screen_get_root_window (GdkScreen *screen);
GdkDisplay * gdk_screen_get_display (GdkScreen *screen);
gint gdk_screen_get_number (GdkScreen *screen);
gint gdk_screen_get_width (GdkScreen *screen);
gint gdk_screen_get_height (GdkScreen *screen);
gint gdk_screen_get_width_mm (GdkScreen *screen);
gint gdk_screen_get_height_mm (GdkScreen *screen);
GList * gdk_screen_list_visuals (GdkScreen *screen);
GList * gdk_screen_get_toplevel_windows (GdkScreen *screen);
gchar * gdk_screen_make_display_name (GdkScreen *screen);
gint gdk_screen_get_n_monitors (GdkScreen *screen);
void gdk_screen_get_monitor_geometry (GdkScreen *screen,
gint monitor_num,
GdkRectangle *dest);
gint gdk_screen_get_monitor_at_point (GdkScreen *screen,
gint x,
gint y);
gint gdk_screen_get_monitor_at_window (GdkScreen *screen,
GdkWindow *window);
void gdk_screen_broadcast_client_message (GdkScreen *screen,
GdkEvent *event);
GdkScreen *gdk_screen_get_default (void);
gboolean gdk_screen_get_setting (GdkScreen *screen,
const gchar *name,
GValue *value);
G_END_DECLS
#endif /* __GDK_SCREEN_H__ */