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wayland: window: optimize: set opaque region

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When background alpha is 1.0 (0xffff), i.e. completely opaque, tell
the compositor this, via wl_surface_set_opaque_region().

This allows it to optimize drawing of surfaces _behind_ our window.
This commit is contained in:
Daniel Eklöf 2020-01-03 21:53:38 +01:00
parent ce4e99ebe2
commit 1178a7763b
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GPG key ID: 5BBD4992C116573F
1 changed files with 11 additions and 0 deletions
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11
wayland.c
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@ -850,6 +850,17 @@ wayl_win_init(struct terminal *term)
goto out;
}
if (term->colors.alpha == 0xffff) {
struct wl_region *region = wl_compositor_create_region(
term->wl->compositor);
if (region != NULL) {
wl_region_add(region, 0, 0, INT32_MAX, INT32_MAX);
wl_surface_set_opaque_region(win->surface, region);
wl_region_destroy(region);
}
}
wl_surface_add_listener(win->surface, &surface_listener, win);
win->xdg_surface = xdg_wm_base_get_xdg_surface(wayl->shell, win->surface);