mirror of
https://github.com/brl/mutter.git
synced 2024-12-25 20:32:16 +00:00
3a8bad1e6f
meta_surface_actor_is_argb32 assumes that lack of stex means that a window is ARGB32. When we unredirect a window we detach the texture so we end up without a texture. Given that should_unredirect returns FALSE when a window is argb32, we know that this window is indeed not ARGB32. Returing TRUE in that case causes us to flip between redirected and unredirected on every paint. So fix that by returning FALSE in that case.
358 lines
11 KiB
C
358 lines
11 KiB
C
/* -*- 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 "meta-surface-actor.h"
|
|
|
|
#include <clutter/clutter.h>
|
|
#include <meta/meta-shaped-texture.h>
|
|
#include "meta-cullable.h"
|
|
#include "meta-shaped-texture-private.h"
|
|
|
|
struct _MetaSurfaceActorPrivate
|
|
{
|
|
MetaShapedTexture *texture;
|
|
|
|
cairo_region_t *input_region;
|
|
|
|
/* Freeze/thaw accounting */
|
|
guint needs_damage_all : 1;
|
|
guint frozen : 1;
|
|
};
|
|
|
|
static void cullable_iface_init (MetaCullableInterface *iface);
|
|
|
|
G_DEFINE_ABSTRACT_TYPE_WITH_CODE (MetaSurfaceActor, meta_surface_actor, CLUTTER_TYPE_ACTOR,
|
|
G_IMPLEMENT_INTERFACE (META_TYPE_CULLABLE, cullable_iface_init));
|
|
|
|
enum {
|
|
REPAINT_SCHEDULED,
|
|
SIZE_CHANGED,
|
|
|
|
LAST_SIGNAL,
|
|
};
|
|
|
|
static guint signals[LAST_SIGNAL];
|
|
|
|
static void
|
|
meta_surface_actor_pick (ClutterActor *actor,
|
|
const ClutterColor *color)
|
|
{
|
|
MetaSurfaceActor *self = META_SURFACE_ACTOR (actor);
|
|
MetaSurfaceActorPrivate *priv = self->priv;
|
|
|
|
if (!clutter_actor_should_pick_paint (actor))
|
|
return;
|
|
|
|
/* If there is no region then use the regular pick */
|
|
if (priv->input_region == NULL)
|
|
CLUTTER_ACTOR_CLASS (meta_surface_actor_parent_class)->pick (actor, color);
|
|
else
|
|
{
|
|
int n_rects;
|
|
float *rectangles;
|
|
int i;
|
|
CoglPipeline *pipeline;
|
|
CoglContext *ctx;
|
|
CoglFramebuffer *fb;
|
|
CoglColor cogl_color;
|
|
|
|
n_rects = cairo_region_num_rectangles (priv->input_region);
|
|
rectangles = g_alloca (sizeof (float) * 4 * n_rects);
|
|
|
|
for (i = 0; i < n_rects; i++)
|
|
{
|
|
cairo_rectangle_int_t rect;
|
|
int pos = i * 4;
|
|
|
|
cairo_region_get_rectangle (priv->input_region, i, &rect);
|
|
|
|
rectangles[pos + 0] = rect.x;
|
|
rectangles[pos + 1] = rect.y;
|
|
rectangles[pos + 2] = rect.x + rect.width;
|
|
rectangles[pos + 3] = rect.y + rect.height;
|
|
}
|
|
|
|
ctx = clutter_backend_get_cogl_context (clutter_get_default_backend ());
|
|
fb = cogl_get_draw_framebuffer ();
|
|
|
|
cogl_color_init_from_4ub (&cogl_color, color->red, color->green, color->blue, color->alpha);
|
|
|
|
pipeline = cogl_pipeline_new (ctx);
|
|
cogl_pipeline_set_color (pipeline, &cogl_color);
|
|
cogl_framebuffer_draw_rectangles (fb, pipeline, rectangles, n_rects);
|
|
cogl_object_unref (pipeline);
|
|
}
|
|
}
|
|
|
|
static void
|
|
meta_surface_actor_dispose (GObject *object)
|
|
{
|
|
MetaSurfaceActor *self = META_SURFACE_ACTOR (object);
|
|
MetaSurfaceActorPrivate *priv = self->priv;
|
|
|
|
g_clear_pointer (&priv->input_region, cairo_region_destroy);
|
|
|
|
G_OBJECT_CLASS (meta_surface_actor_parent_class)->dispose (object);
|
|
}
|
|
|
|
static void
|
|
meta_surface_actor_class_init (MetaSurfaceActorClass *klass)
|
|
{
|
|
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
|
ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
|
|
|
|
object_class->dispose = meta_surface_actor_dispose;
|
|
actor_class->pick = meta_surface_actor_pick;
|
|
|
|
signals[REPAINT_SCHEDULED] = g_signal_new ("repaint-scheduled",
|
|
G_TYPE_FROM_CLASS (object_class),
|
|
G_SIGNAL_RUN_LAST,
|
|
0,
|
|
NULL, NULL, NULL,
|
|
G_TYPE_NONE, 0);
|
|
|
|
signals[SIZE_CHANGED] = g_signal_new ("size-changed",
|
|
G_TYPE_FROM_CLASS (object_class),
|
|
G_SIGNAL_RUN_LAST,
|
|
0,
|
|
NULL, NULL, NULL,
|
|
G_TYPE_NONE, 0);
|
|
|
|
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
|
|
texture_size_changed (MetaShapedTexture *texture,
|
|
gpointer user_data)
|
|
{
|
|
MetaSurfaceActor *actor = META_SURFACE_ACTOR (user_data);
|
|
g_signal_emit (actor, signals[SIZE_CHANGED], 0);
|
|
}
|
|
|
|
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 = META_SHAPED_TEXTURE (meta_shaped_texture_new ());
|
|
g_signal_connect_object (priv->texture, "size-changed",
|
|
G_CALLBACK (texture_size_changed), self, 0);
|
|
clutter_actor_add_child (CLUTTER_ACTOR (self), CLUTTER_ACTOR (priv->texture));
|
|
}
|
|
|
|
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
|
|
meta_surface_actor_update_area (MetaSurfaceActor *self,
|
|
int x, int y, int width, int height)
|
|
{
|
|
MetaSurfaceActorPrivate *priv = self->priv;
|
|
|
|
if (meta_shaped_texture_update_area (priv->texture, x, y, width, height))
|
|
g_signal_emit (self, signals[REPAINT_SCHEDULED], 0);
|
|
}
|
|
|
|
gboolean
|
|
meta_surface_actor_is_obscured (MetaSurfaceActor *self)
|
|
{
|
|
MetaSurfaceActorPrivate *priv = self->priv;
|
|
return meta_shaped_texture_is_obscured (priv->texture);
|
|
}
|
|
|
|
void
|
|
meta_surface_actor_set_input_region (MetaSurfaceActor *self,
|
|
cairo_region_t *region)
|
|
{
|
|
MetaSurfaceActorPrivate *priv = self->priv;
|
|
|
|
if (priv->input_region)
|
|
cairo_region_destroy (priv->input_region);
|
|
|
|
if (region)
|
|
priv->input_region = cairo_region_reference (region);
|
|
else
|
|
priv->input_region = NULL;
|
|
}
|
|
|
|
void
|
|
meta_surface_actor_set_opaque_region (MetaSurfaceActor *self,
|
|
cairo_region_t *region)
|
|
{
|
|
MetaSurfaceActorPrivate *priv = self->priv;
|
|
meta_shaped_texture_set_opaque_region (priv->texture, region);
|
|
}
|
|
|
|
static gboolean
|
|
is_frozen (MetaSurfaceActor *self)
|
|
{
|
|
MetaSurfaceActorPrivate *priv = self->priv;
|
|
return priv->frozen;
|
|
}
|
|
|
|
void
|
|
meta_surface_actor_process_damage (MetaSurfaceActor *self,
|
|
int x, int y, int width, int height)
|
|
{
|
|
MetaSurfaceActorPrivate *priv = self->priv;
|
|
|
|
if (is_frozen (self))
|
|
{
|
|
/* The window is frozen due to an effect in progress: we ignore damage
|
|
* here on the off chance that this will stop the corresponding
|
|
* texture_from_pixmap from being update.
|
|
*
|
|
* needs_damage_all tracks that some unknown damage happened while the
|
|
* window was frozen so that when the window becomes unfrozen we can
|
|
* issue a full window update to cover any lost damage.
|
|
*
|
|
* It should be noted that this is an unreliable mechanism since it's
|
|
* quite likely that drivers will aim to provide a zero-copy
|
|
* implementation of the texture_from_pixmap extension and in those cases
|
|
* any drawing done to the window is always immediately reflected in the
|
|
* texture regardless of damage event handling.
|
|
*/
|
|
priv->needs_damage_all = TRUE;
|
|
return;
|
|
}
|
|
|
|
META_SURFACE_ACTOR_GET_CLASS (self)->process_damage (self, x, y, width, height);
|
|
|
|
if (meta_surface_actor_is_visible (self))
|
|
meta_surface_actor_update_area (self, x, y, width, height);
|
|
}
|
|
|
|
void
|
|
meta_surface_actor_pre_paint (MetaSurfaceActor *self)
|
|
{
|
|
META_SURFACE_ACTOR_GET_CLASS (self)->pre_paint (self);
|
|
}
|
|
|
|
gboolean
|
|
meta_surface_actor_is_argb32 (MetaSurfaceActor *self)
|
|
{
|
|
MetaShapedTexture *stex = meta_surface_actor_get_texture (self);
|
|
CoglTexture *texture = meta_shaped_texture_get_texture (stex);
|
|
|
|
/* If we don't have a texture, like during initialization, assume
|
|
* that we're ARGB32.
|
|
*
|
|
* If we are unredirected and we have no texture assume that we are
|
|
* not ARGB32 otherwise we wouldn't be unredirected in the first
|
|
* place. This prevents us from continually redirecting and
|
|
* unredirecting on every paint.
|
|
*/
|
|
if (!texture)
|
|
return !meta_surface_actor_is_unredirected (self);
|
|
|
|
switch (cogl_texture_get_components (texture))
|
|
{
|
|
case COGL_TEXTURE_COMPONENTS_A:
|
|
case COGL_TEXTURE_COMPONENTS_RGBA:
|
|
return TRUE;
|
|
case COGL_TEXTURE_COMPONENTS_RG:
|
|
case COGL_TEXTURE_COMPONENTS_RGB:
|
|
case COGL_TEXTURE_COMPONENTS_DEPTH:
|
|
return FALSE;
|
|
default:
|
|
g_assert_not_reached ();
|
|
}
|
|
}
|
|
|
|
gboolean
|
|
meta_surface_actor_is_visible (MetaSurfaceActor *self)
|
|
{
|
|
return META_SURFACE_ACTOR_GET_CLASS (self)->is_visible (self);
|
|
}
|
|
|
|
void
|
|
meta_surface_actor_set_frozen (MetaSurfaceActor *self,
|
|
gboolean frozen)
|
|
{
|
|
MetaSurfaceActorPrivate *priv = self->priv;
|
|
|
|
priv->frozen = frozen;
|
|
|
|
if (!frozen && priv->needs_damage_all)
|
|
{
|
|
/* Since we ignore damage events while a window is frozen for certain effects
|
|
* we may need to issue an update_area() covering the whole pixmap if we
|
|
* don't know what real damage has happened. */
|
|
|
|
meta_surface_actor_process_damage (self, 0, 0,
|
|
clutter_actor_get_width (CLUTTER_ACTOR (priv->texture)),
|
|
clutter_actor_get_height (CLUTTER_ACTOR (priv->texture)));
|
|
priv->needs_damage_all = FALSE;
|
|
}
|
|
}
|
|
|
|
gboolean
|
|
meta_surface_actor_should_unredirect (MetaSurfaceActor *self)
|
|
{
|
|
return META_SURFACE_ACTOR_GET_CLASS (self)->should_unredirect (self);
|
|
}
|
|
|
|
void
|
|
meta_surface_actor_set_unredirected (MetaSurfaceActor *self,
|
|
gboolean unredirected)
|
|
{
|
|
META_SURFACE_ACTOR_GET_CLASS (self)->set_unredirected (self, unredirected);
|
|
}
|
|
|
|
gboolean
|
|
meta_surface_actor_is_unredirected (MetaSurfaceActor *self)
|
|
{
|
|
return META_SURFACE_ACTOR_GET_CLASS (self)->is_unredirected (self);
|
|
}
|
|
|
|
MetaWindow *
|
|
meta_surface_actor_get_window (MetaSurfaceActor *self)
|
|
{
|
|
return META_SURFACE_ACTOR_GET_CLASS (self)->get_window (self);
|
|
}
|