mutter/src/compositor/meta-surface-actor.c

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/**
* SECTION:meta-surface-actor
* @title: MetaSurfaceActor
* @short_description: An actor representing a surface in the scene graph
*
* A surface can be either a shaped texture, or a group of shaped texture,
* used to draw the content of a window.
*/
#include <config.h>
#include <clutter/clutter.h>
#include <cogl/cogl-wayland-server.h>
#include <cogl/cogl-texture-pixmap-x11.h>
#include <meta/meta-shaped-texture.h>
#include "meta-surface-actor.h"
#include "meta-wayland-private.h"
#include "meta-cullable.h"
#include "meta-shaped-texture-private.h"
struct _MetaSurfaceActorPrivate
{
MetaShapedTexture *texture;
MetaWaylandBuffer *buffer;
};
static void cullable_iface_init (MetaCullableInterface *iface);
G_DEFINE_TYPE_WITH_CODE (MetaSurfaceActor, meta_surface_actor, CLUTTER_TYPE_ACTOR,
G_IMPLEMENT_INTERFACE (META_TYPE_CULLABLE, cullable_iface_init));
static void
meta_surface_actor_class_init (MetaSurfaceActorClass *klass)
{
g_type_class_add_private (klass, sizeof (MetaSurfaceActorPrivate));
}
static void
meta_surface_actor_cull_out (MetaCullable *cullable,
cairo_region_t *unobscured_region,
cairo_region_t *clip_region)
{
meta_cullable_cull_out_children (cullable, unobscured_region, clip_region);
}
static void
meta_surface_actor_reset_culling (MetaCullable *cullable)
{
meta_cullable_reset_culling_children (cullable);
}
static void
cullable_iface_init (MetaCullableInterface *iface)
{
iface->cull_out = meta_surface_actor_cull_out;
iface->reset_culling = meta_surface_actor_reset_culling;
}
static void
meta_surface_actor_init (MetaSurfaceActor *self)
{
MetaSurfaceActorPrivate *priv;
priv = self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
META_TYPE_SURFACE_ACTOR,
MetaSurfaceActorPrivate);
priv->texture = NULL;
}
MetaSurfaceActor *
meta_surface_actor_new (void)
{
MetaSurfaceActor *self = g_object_new (META_TYPE_SURFACE_ACTOR, NULL);
MetaShapedTexture *stex;
stex = META_SHAPED_TEXTURE (meta_shaped_texture_new ());
self->priv->texture = stex;
clutter_actor_add_child (CLUTTER_ACTOR (self), CLUTTER_ACTOR (stex));
return self;
}
cairo_surface_t *
meta_surface_actor_get_image (MetaSurfaceActor *self,
cairo_rectangle_int_t *clip)
{
return meta_shaped_texture_get_image (self->priv->texture, clip);
}
MetaShapedTexture *
meta_surface_actor_get_texture (MetaSurfaceActor *self)
{
return self->priv->texture;
}
static void
update_area (MetaSurfaceActor *self,
int x, int y, int width, int height)
{
MetaSurfaceActorPrivate *priv = self->priv;
if (meta_is_wayland_compositor ())
{
struct wl_resource *resource = priv->buffer->resource;
struct wl_shm_buffer *shm_buffer = wl_shm_buffer_get (resource);
if (shm_buffer)
{
CoglTexture2D *texture = COGL_TEXTURE_2D (priv->buffer->texture);
cogl_wayland_texture_2d_update_area (texture, shm_buffer, x, y, width, height);
}
}
else
{
CoglTexturePixmapX11 *texture = COGL_TEXTURE_PIXMAP_X11 (meta_shaped_texture_get_texture (priv->texture));
cogl_texture_pixmap_x11_update_area (texture, x, y, width, height);
}
}
gboolean
meta_surface_actor_damage_all (MetaSurfaceActor *self,
cairo_region_t *unobscured_region)
{
MetaSurfaceActorPrivate *priv = self->priv;
CoglTexture *texture = meta_shaped_texture_get_texture (priv->texture);
update_area (self, 0, 0, cogl_texture_get_width (texture), cogl_texture_get_height (texture));
return meta_shaped_texture_update_area (self->priv->texture,
0, 0,
cogl_texture_get_width (texture),
cogl_texture_get_height (texture),
unobscured_region);
}
gboolean
meta_surface_actor_damage_area (MetaSurfaceActor *self,
int x,
int y,
int width,
int height,
cairo_region_t *unobscured_region)
{
update_area (self, x, y, width, height);
return meta_shaped_texture_update_area (self->priv->texture,
x, y, width, height,
unobscured_region);
}
void
meta_surface_actor_attach_wayland_buffer (MetaSurfaceActor *self,
MetaWaylandBuffer *buffer)
{
MetaSurfaceActorPrivate *priv = self->priv;
priv->buffer = buffer;
if (buffer)
meta_shaped_texture_set_texture (self->priv->texture, buffer->texture);
else
meta_shaped_texture_set_texture (self->priv->texture, NULL);
}
void
meta_surface_actor_set_texture (MetaSurfaceActor *self,
CoglTexture *texture)
{
meta_shaped_texture_set_texture (self->priv->texture, texture);
}
void
meta_surface_actor_set_input_region (MetaSurfaceActor *self,
cairo_region_t *region)
{
meta_shaped_texture_set_input_shape_region (self->priv->texture, region);
}
void
meta_surface_actor_set_opaque_region (MetaSurfaceActor *self,
cairo_region_t *region)
{
meta_shaped_texture_set_opaque_region (self->priv->texture, region);
}