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window-actor: Add back antialiased window corners

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This simply adds fancy arcs to the mask texture.
This commit is contained in:
Jasper St. Pierre 2012-04-27 00:15:30 -04:00
parent 8da12ac0e0
commit 52fee4df1c
1 changed files with 79 additions and 0 deletions
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79
src/compositor/meta-window-actor.c
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@ -1991,6 +1991,67 @@ meta_window_actor_sync_visibility (MetaWindowActor *self)
}
static void
install_corners (MetaWindow *window,
MetaFrameBorders *borders,
cairo_t *cr)
{
float top_left, top_right, bottom_left, bottom_right;
int x, y;
MetaRectangle outer;
meta_frame_get_corner_radiuses (window->frame,
&top_left,
&top_right,
&bottom_left,
&bottom_right);
meta_window_get_outer_rect (window, &outer);
/* top left */
x = borders->invisible.left;
y = borders->invisible.top;
cairo_arc (cr,
x + top_left,
y + top_left,
top_left,
0, M_PI*2);
/* top right */
x = borders->invisible.left + outer.width - top_right;
y = borders->invisible.top;
cairo_arc (cr,
x,
y + top_right,
top_right,
0, M_PI*2);
/* bottom right */
x = borders->invisible.left + outer.width - bottom_right;
y = borders->invisible.top + outer.height - bottom_right;
cairo_arc (cr,
x,
y,
bottom_right,
0, M_PI*2);
/* bottom left */
x = borders->invisible.left;
y = borders->invisible.top + outer.height - bottom_left;
cairo_arc (cr,
x + bottom_left,
y,
bottom_left,
0, M_PI*2);
cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
cairo_set_source_rgba (cr, 1, 1, 1, 1);
cairo_fill (cr);
}
static void
generate_mask (MetaWindowActor *self,
MetaFrameBorders *borders,
@ -2041,6 +2102,24 @@ generate_mask (MetaWindowActor *self,
memset (p, 255, x2 - x1);
}
if (priv->window->frame != NULL)
{
cairo_t *cr;
cairo_surface_t *surface;
surface = cairo_image_surface_create_for_data (mask_data,
CAIRO_FORMAT_A8,
tex_width,
tex_height,
stride);
cr = cairo_create (surface);
install_corners (priv->window, borders, cr);
cairo_destroy (cr);
cairo_surface_destroy (surface);
}
if (meta_texture_rectangle_check (paint_tex))
{
mask_texture = meta_texture_rectangle_new (tex_width, tex_height,