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shaped-texture: Make Cullable

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Make MetaWindowActor chain up to the generic default MetaCullable
implementation, and remove the helper methods for MetaSurfaceActor
and MetaShapedTexture.
This commit is contained in:
Jasper St. Pierre 2014-01-16 10:59:34 -05:00
parent c1f5741ac0
commit ae05059cef
3 changed files with 69 additions and 124 deletions
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101
src/compositor/meta-shaped-texture.c
View File

@ -35,6 +35,7 @@
#include <cogl/cogl.h>
#include <cogl/cogl-texture-pixmap-x11.h>
#include <gdk/gdk.h> /* for gdk_rectangle_intersect() */
#include "meta-cullable.h"
static void meta_shaped_texture_dispose (GObject *object);
@ -54,8 +55,10 @@ static void meta_shaped_texture_get_preferred_height (ClutterActor *self,
static gboolean meta_shaped_texture_get_paint_volume (ClutterActor *self, ClutterPaintVolume *volume);
G_DEFINE_TYPE (MetaShapedTexture, meta_shaped_texture,
CLUTTER_TYPE_ACTOR);
static void cullable_iface_init (MetaCullableInterface *iface);
G_DEFINE_TYPE_WITH_CODE (MetaShapedTexture, meta_shaped_texture, CLUTTER_TYPE_ACTOR,
G_IMPLEMENT_INTERFACE (META_TYPE_CULLABLE, cullable_iface_init));
#define META_SHAPED_TEXTURE_GET_PRIVATE(obj) \
(G_TYPE_INSTANCE_GET_PRIVATE ((obj), META_TYPE_SHAPED_TEXTURE, \
@ -107,6 +110,17 @@ meta_shaped_texture_init (MetaShapedTexture *self)
priv->create_mipmaps = TRUE;
}
static void
set_clip_region (MetaShapedTexture *self,
cairo_region_t *clip_region)
{
MetaShapedTexturePrivate *priv = self->priv;
g_clear_pointer (&priv->clip_region, (GDestroyNotify) cairo_region_destroy);
if (clip_region)
priv->clip_region = cairo_region_copy (clip_region);
}
static void
meta_shaped_texture_dispose (GObject *object)
{
@ -121,7 +135,7 @@ meta_shaped_texture_dispose (GObject *object)
g_clear_pointer (&priv->opaque_region, cairo_region_destroy);
meta_shaped_texture_set_mask_texture (self, NULL);
meta_shaped_texture_set_clip_region (self, NULL);
set_clip_region (self, NULL);
G_OBJECT_CLASS (meta_shaped_texture_parent_class)->dispose (object);
}
@ -489,14 +503,6 @@ meta_shaped_texture_get_paint_volume (ClutterActor *self,
return clutter_paint_volume_set_from_allocation (volume, self);
}
ClutterActor *
meta_shaped_texture_new (void)
{
ClutterActor *self = g_object_new (META_TYPE_SHAPED_TEXTURE, NULL);
return self;
}
void
meta_shaped_texture_set_create_mipmaps (MetaShapedTexture *stex,
gboolean create_mipmaps)
@ -733,39 +739,6 @@ meta_shaped_texture_set_input_shape_region (MetaShapedTexture *stex,
clutter_actor_queue_redraw (CLUTTER_ACTOR (stex));
}
/**
* meta_shaped_texture_set_clip_region:
* @stex: a #MetaShapedTexture
* @clip_region: the region of the texture that is visible and
* should be painted.
*
* Provides a hint to the texture about what areas of the texture
* are not completely obscured and thus need to be painted. This
* is an optimization and is not supposed to have any effect on
* the output.
*
* Typically a parent container will set the clip region before
* painting its children, and then unset it afterwards.
*/
void
meta_shaped_texture_set_clip_region (MetaShapedTexture *stex,
cairo_region_t *clip_region)
{
MetaShapedTexturePrivate *priv;
g_return_if_fail (META_IS_SHAPED_TEXTURE (stex));
priv = stex->priv;
if (priv->clip_region)
cairo_region_destroy (priv->clip_region);
if (clip_region)
priv->clip_region = cairo_region_copy (clip_region);
else
priv->clip_region = NULL;
}
/**
* meta_shaped_texture_set_opaque_region:
* @stex: a #MetaShapedTexture
@ -893,3 +866,43 @@ meta_shaped_texture_get_image (MetaShapedTexture *stex,
return surface;
}
static void
meta_shaped_texture_cull_out (MetaCullable *cullable,
cairo_region_t *unobscured_region,
cairo_region_t *clip_region)
{
MetaShapedTexture *self = META_SHAPED_TEXTURE (cullable);
MetaShapedTexturePrivate *priv = self->priv;
set_clip_region (self, clip_region);
if (clutter_actor_get_paint_opacity (CLUTTER_ACTOR (self)) == 0xff)
{
if (priv->opaque_region)
{
cairo_region_subtract (unobscured_region, priv->opaque_region);
cairo_region_subtract (clip_region, priv->opaque_region);
}
}
}
static void
meta_shaped_texture_reset_culling (MetaCullable *cullable)
{
MetaShapedTexture *self = META_SHAPED_TEXTURE (cullable);
set_clip_region (self, NULL);
}
static void
cullable_iface_init (MetaCullableInterface *iface)
{
iface->cull_out = meta_shaped_texture_cull_out;
iface->reset_culling = meta_shaped_texture_reset_culling;
}
ClutterActor *
meta_shaped_texture_new (void)
{
return g_object_new (META_TYPE_SHAPED_TEXTURE, NULL);
}

89
src/compositor/meta-window-actor.c
View File

@ -70,11 +70,6 @@ struct _MetaWindowActorPrivate
/* A region that matches the shape of the window, including frame bounds */
cairo_region_t *shape_region;
/* If the window has an input shape, a region that matches the shape */
cairo_region_t *input_region;
/* The opaque region, from _NET_WM_OPAQUE_REGION, intersected with
* the shape region. */
cairo_region_t *opaque_region;
/* The region we should clip to when painting the shadow */
cairo_region_t *shadow_clip;
@ -366,8 +361,8 @@ meta_window_actor_constructed (GObject *object)
meta_window_actor_update_opacity (self);
/* Start off with an empty region to maintain the invariant that
the shape region is always set */
/* Start off with an empty shape region to maintain the invariant
* that it's always set */
priv->shape_region = cairo_region_create ();
}
@ -401,8 +396,6 @@ meta_window_actor_dispose (GObject *object)
g_clear_pointer (&priv->unobscured_region, cairo_region_destroy);
g_clear_pointer (&priv->shape_region, cairo_region_destroy);
g_clear_pointer (&priv->input_region, cairo_region_destroy);
g_clear_pointer (&priv->opaque_region, cairo_region_destroy);
g_clear_pointer (&priv->shadow_clip, cairo_region_destroy);
g_clear_pointer (&priv->shadow_class, g_free);
@ -1642,28 +1635,6 @@ meta_window_actor_unmapped (MetaWindowActor *self)
priv->needs_pixmap = FALSE;
}
/**
* meta_window_actor_get_obscured_region:
* @self: a #MetaWindowActor
*
* Gets the region that is completely obscured by the window. Coordinates
* are relative to the upper-left of the window.
*
* Return value: (transfer none): the area obscured by the window,
* %NULL is the same as an empty region.
*/
static cairo_region_t *
meta_window_actor_get_obscured_region (MetaWindowActor *self)
{
MetaWindowActorPrivate *priv = self->priv;
MetaWindow *window = priv->window;
if (priv->back_pixmap && window->opacity != 0xFF && !priv->window->shaded)
return priv->opaque_region;
else
return NULL;
}
#if 0
/* Print out a region; useful for debugging */
static void
@ -1713,8 +1684,6 @@ see_region (cairo_region_t *region,
*
* Provides a hint as to what areas of the window need to queue
* redraws when damaged. Regions not in @unobscured_region are completely obscured.
* Unlike meta_window_actor_set_clip_region(), the region here
* doesn't take into account any clipping that is in effect while drawing.
*/
void
meta_window_actor_set_unobscured_region (MetaWindowActor *self,
@ -1731,27 +1700,6 @@ meta_window_actor_set_unobscured_region (MetaWindowActor *self,
priv->unobscured_region = NULL;
}
/**
* meta_window_actor_set_clip_region:
* @self: a #MetaWindowActor
* @clip_region: the region of the screen that isn't completely
* obscured.
*
* Provides a hint as to what areas of the window need to be
* drawn. Regions not in @clip_region are completely obscured or
* not drawn in this frame.
* This will be set before painting then unset afterwards.
*/
static void
meta_window_actor_set_clip_region (MetaWindowActor *self,
cairo_region_t *clip_region)
{
MetaWindowActorPrivate *priv = self->priv;
meta_shaped_texture_set_clip_region (META_SHAPED_TEXTURE (priv->actor),
clip_region);
}
/**
* meta_window_actor_set_clip_region_beneath:
* @self: a #MetaWindowActor
@ -1797,18 +1745,7 @@ meta_window_actor_cull_out (MetaCullable *cullable,
return;
meta_window_actor_set_unobscured_region (self, unobscured_region);
meta_window_actor_set_clip_region (self, clip_region);
if (clutter_actor_get_paint_opacity (CLUTTER_ACTOR (self)) == 0xff)
{
cairo_region_t *obscured_region = meta_window_actor_get_obscured_region (self);
if (obscured_region)
{
cairo_region_subtract (unobscured_region, obscured_region);
cairo_region_subtract (clip_region, obscured_region);
}
}
meta_cullable_cull_out_children (cullable, unobscured_region, clip_region);
meta_window_actor_set_clip_region_beneath (self, clip_region);
}
@ -1818,9 +1755,8 @@ meta_window_actor_reset_culling (MetaCullable *cullable)
MetaWindowActor *self = META_WINDOW_ACTOR (cullable);
MetaWindowActorPrivate *priv = self->priv;
meta_shaped_texture_set_clip_region (META_SHAPED_TEXTURE (priv->actor),
NULL);
g_clear_pointer (&priv->shadow_clip, cairo_region_destroy);
meta_cullable_reset_culling_children (cullable);
}
static void
@ -2274,8 +2210,7 @@ static void
meta_window_actor_update_opaque_region (MetaWindowActor *self)
{
MetaWindowActorPrivate *priv = self->priv;
g_clear_pointer (&priv->opaque_region, cairo_region_destroy);
cairo_region_t *opaque_region;
if (priv->argb32 && priv->window->opaque_region != NULL)
{
@ -2293,17 +2228,17 @@ meta_window_actor_update_opaque_region (MetaWindowActor *self)
* to be undefined, and considered a client bug. In mutter's
* case, graphical glitches will occur.
*/
priv->opaque_region = cairo_region_copy (priv->window->opaque_region);
cairo_region_translate (priv->opaque_region, borders.total.left, borders.total.top);
cairo_region_intersect (priv->opaque_region, priv->shape_region);
opaque_region = cairo_region_copy (priv->window->opaque_region);
cairo_region_translate (opaque_region, borders.total.left, borders.total.top);
cairo_region_intersect (opaque_region, priv->shape_region);
}
else if (priv->argb32)
priv->opaque_region = NULL;
opaque_region = NULL;
else
priv->opaque_region = cairo_region_reference (priv->shape_region);
opaque_region = cairo_region_reference (priv->shape_region);
meta_shaped_texture_set_opaque_region (META_SHAPED_TEXTURE (priv->actor),
priv->opaque_region);
meta_shaped_texture_set_opaque_region (META_SHAPED_TEXTURE (priv->actor), opaque_region);
cairo_region_destroy (opaque_region);
}
static void

3
src/meta/meta-shaped-texture.h
View File

@ -84,9 +84,6 @@ void meta_shaped_texture_set_mask_texture (MetaShapedTexture *stex,
void meta_shaped_texture_set_input_shape_region (MetaShapedTexture *stex,
cairo_region_t *shape_region);
void meta_shaped_texture_set_clip_region (MetaShapedTexture *stex,
cairo_region_t *clip_region);
void meta_shaped_texture_set_opaque_region (MetaShapedTexture *stex,
cairo_region_t *opaque_region);