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shaped-texture: Remove get_clip

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It seems that this code is trying to transform from "surface coordinates"
(the size of texture that's being displayed) to "actor coordinates"
(the actor's allocation), but I can't find any place where the two are
different. As such, let's just go back to using "surface coordinates"
everywhere and see what breaks.
This commit is contained in:
Jasper St. Pierre 2014-02-05 14:05:18 -05:00
parent b8e096db82
commit a6539463be
1 changed files with 3 additions and 56 deletions
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55
src/compositor/meta-shaped-texture.c
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@ -594,52 +594,6 @@ meta_shaped_texture_set_mask_texture (MetaShapedTexture *stex,
clutter_actor_queue_redraw (CLUTTER_ACTOR (stex));
}
static gboolean
get_clip (MetaShapedTexture *stex,
int x,
int y,
int width,
int height,
cairo_rectangle_int_t *clip)
{
ClutterActor *self = CLUTTER_ACTOR (stex);
MetaShapedTexturePrivate *priv;
ClutterActorBox allocation;
double scale_x;
double scale_y;
/* NB: clutter_actor_queue_redraw_with_clip expects a box in the actor's
* coordinate space so we need to convert from surface coordinates to
* actor coordinates...
*/
/* Calling clutter_actor_get_allocation_box() is enormously expensive
* if the actor has an out-of-date allocation, since it triggers
* a full redraw. clutter_actor_queue_redraw_with_clip() would redraw
* the whole stage anyways in that case, so just go ahead and do
* it here.
*/
if (!clutter_actor_has_allocation (self))
return FALSE;
priv = stex->priv;
if (priv->tex_width == 0 || priv->tex_height == 0)
return FALSE;
clutter_actor_get_allocation_box (self, &allocation);
scale_x = (allocation.x2 - allocation.x1) / priv->tex_width;
scale_y = (allocation.y2 - allocation.y1) / priv->tex_height;
clip->x = x * scale_x;
clip->y = y * scale_y;
clip->width = width * scale_x;
clip->height = height * scale_y;
return TRUE;
}
/**
* meta_shaped_texture_update_area:
* @stex: #MetaShapedTexture
@ -667,8 +621,7 @@ meta_shaped_texture_update_area (MetaShapedTexture *stex,
cairo_region_t *unobscured_region)
{
MetaShapedTexturePrivate *priv;
cairo_rectangle_int_t clip;
gboolean has_clip;
cairo_rectangle_int_t clip = { x, y, width, height };
priv = stex->priv;
@ -677,8 +630,6 @@ meta_shaped_texture_update_area (MetaShapedTexture *stex,
meta_texture_tower_update_area (priv->paint_tower, x, y, width, height);
has_clip = get_clip (stex, x, y, width, height, &clip);
if (unobscured_region)
{
cairo_region_t *intersection;
@ -687,7 +638,6 @@ meta_shaped_texture_update_area (MetaShapedTexture *stex,
return FALSE;
intersection = cairo_region_copy (unobscured_region);
if (has_clip)
cairo_region_intersect_rectangle (intersection, &clip);
if (!cairo_region_is_empty (intersection))
@ -705,10 +655,7 @@ meta_shaped_texture_update_area (MetaShapedTexture *stex,
return FALSE;
}
if (has_clip)
clutter_actor_queue_redraw_with_clip (CLUTTER_ACTOR (stex), &clip);
else
clutter_actor_queue_redraw (CLUTTER_ACTOR (stex));
return TRUE;
}