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wayland/shm: use opaque regions

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Make use of opaque regions on non-alpha formats. This allows the compositor to
improve the drawing of the surface, because he can discard everything behind
the window when drawing.
This commit is contained in:
Alexander Preisinger 2013-08-26 16:27:18 +02:00
parent df9639d755
commit 5895d6c24f
1 changed files with 10 additions and 0 deletions
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10
video/out/vo_wayland.c
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@ -393,6 +393,16 @@ static bool resize(struct priv *p)
wl->window.width = p->dst_w; wl->window.width = p->dst_w;
wl->window.height = p->dst_h; wl->window.height = p->dst_h;
// if no alpha enabled format is used then create an opaque region to allow
// the compositor to optimize the drawing of the window
if (!p->enable_alpha) {
struct wl_region *opaque =
wl_compositor_create_region(wl->display.compositor);
wl_region_add(opaque, 0, 0, p->dst_w, p->dst_h);
wl_surface_set_opaque_region(wl->window.surface, opaque);
wl_region_destroy(opaque);
}
// a redraw should happen at this point // a redraw should happen at this point
wl_surface_attach(wl->window.surface, p->front_buffer->wlbuf, x, y); wl_surface_attach(wl->window.surface, p->front_buffer->wlbuf, x, y);
wl_surface_damage(wl->window.surface, 0, 0, p->dst_w, p->dst_h); wl_surface_damage(wl->window.surface, 0, 0, p->dst_w, p->dst_h);