mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-11-10 10:50:10 +00:00
3f9bdaa4c8
Make it possible for subsurfaces to have a black background on a secondary subsurface below the actual subsurface. Using a single-pixel buffer for that background increases the changes that the compositor will use direct scanout for the actual subsurface. This changes the private subsurface API. All callers have been updated to pass an empty background rect.
108 lines
4.5 KiB
C
108 lines
4.5 KiB
C
/* GDK - The GIMP Drawing Kit
|
|
* Copyright (C) 2023 Red Hat, Inc.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/* Uninstalled header defining types and functions internal to GDK */
|
|
|
|
#pragma once
|
|
|
|
#include "gdkenumtypes.h"
|
|
#include "gdksurface.h"
|
|
#include <graphene.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
typedef struct _GdkSubsurface GdkSubsurface;
|
|
typedef struct _GdkSubsurfaceClass GdkSubsurfaceClass;
|
|
|
|
#define GDK_TYPE_SUBSURFACE (gdk_subsurface_get_type ())
|
|
#define GDK_SUBSURFACE(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_SUBSURFACE, GdkSubsurface))
|
|
#define GDK_SUBSURFACE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_SUBSURFACE, GdkSubsurfaceClass))
|
|
#define GDK_IS_SUBSURFACE(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_SUBSURFACE))
|
|
#define GDK_SUBSURFACE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_SUBSURFACE, GdkSubsurfaceClass))
|
|
|
|
struct _GdkSubsurface
|
|
{
|
|
GObject parent_instance;
|
|
|
|
GdkSurface *parent;
|
|
|
|
int ref_count;
|
|
|
|
gboolean above_parent;
|
|
GdkSubsurface *sibling_above;
|
|
GdkSubsurface *sibling_below;
|
|
};
|
|
|
|
typedef enum {
|
|
GDK_TEXTURE_TRANSFORM_NORMAL,
|
|
GDK_TEXTURE_TRANSFORM_90,
|
|
GDK_TEXTURE_TRANSFORM_180,
|
|
GDK_TEXTURE_TRANSFORM_270,
|
|
GDK_TEXTURE_TRANSFORM_FLIPPED,
|
|
GDK_TEXTURE_TRANSFORM_FLIPPED_90,
|
|
GDK_TEXTURE_TRANSFORM_FLIPPED_180,
|
|
GDK_TEXTURE_TRANSFORM_FLIPPED_270,
|
|
} GdkTextureTransform;
|
|
|
|
struct _GdkSubsurfaceClass
|
|
{
|
|
GObjectClass parent_class;
|
|
|
|
gboolean (* attach) (GdkSubsurface *subsurface,
|
|
GdkTexture *texture,
|
|
const graphene_rect_t *source,
|
|
const graphene_rect_t *dest,
|
|
GdkTextureTransform transform,
|
|
const graphene_rect_t *bg,
|
|
gboolean above,
|
|
GdkSubsurface *sibling);
|
|
void (* detach) (GdkSubsurface *subsurface);
|
|
GdkTexture * (* get_texture) (GdkSubsurface *subsurface);
|
|
void (* get_source) (GdkSubsurface *subsurface,
|
|
graphene_rect_t *source);
|
|
void (* get_dest) (GdkSubsurface *subsurface,
|
|
graphene_rect_t *dest);
|
|
GdkTextureTransform
|
|
(* get_transform) (GdkSubsurface *subsurface);
|
|
};
|
|
|
|
GType gdk_subsurface_get_type (void) G_GNUC_CONST;
|
|
|
|
GdkSurface * gdk_subsurface_get_parent (GdkSubsurface *subsurface);
|
|
|
|
gboolean gdk_subsurface_attach (GdkSubsurface *subsurface,
|
|
GdkTexture *texture,
|
|
const graphene_rect_t *source,
|
|
const graphene_rect_t *dest,
|
|
GdkTextureTransform transform,
|
|
const graphene_rect_t *background,
|
|
gboolean above,
|
|
GdkSubsurface *sibling);
|
|
void gdk_subsurface_detach (GdkSubsurface *subsurface);
|
|
GdkTexture * gdk_subsurface_get_texture (GdkSubsurface *subsurface);
|
|
void gdk_subsurface_get_source (GdkSubsurface *subsurface,
|
|
graphene_rect_t *source);
|
|
void gdk_subsurface_get_dest (GdkSubsurface *subsurface,
|
|
graphene_rect_t *dest);
|
|
gboolean gdk_subsurface_is_above_parent (GdkSubsurface *subsurface);
|
|
GdkTextureTransform
|
|
gdk_subsurface_get_transform (GdkSubsurface *subsurface);
|
|
|
|
|
|
G_END_DECLS
|
|
|