cairo_int_status_t
_cairo_compositor_paint (const cairo_compositor_t *compositor,
cairo_surface_t *surface,
cairo_operator_t op,
const cairo_pattern_t *source,
const cairo_clip_t *clip)
{
cairo_composite_rectangles_t extents;
cairo_int_status_t status;
TRACE ((stderr, "%s\n", __FUNCTION__));
status = _cairo_composite_rectangles_init_for_paint (&extents, surface,
op, source,
clip);
if (unlikely (status))
return status;
do {
while (compositor->paint == XNULL)
compositor = compositor->delegate;
status = compositor->paint (compositor, &extents);
compositor = compositor->delegate;
} while (status == CAIRO_INT_STATUS_UNSUPPORTED);
if (status == CAIRO_INT_STATUS_SUCCESS && surface->damage) {
TRACE ((stderr, "%s: applying damage (%d,%d)x(%d, %d)\n",
__FUNCTION__,
extents.unbounded.x, extents.unbounded.y,
extents.unbounded.width, extents.unbounded.height));
surface->damage = _cairo_damage_add_rectangle (surface->damage,
&extents.unbounded);
}
_cairo_composite_rectangles_fini (&extents);
return status;
}
static cairo_int_status_t
_cairo_xcb_surface_paint (void *abstract_surface,
cairo_operator_t op,
const cairo_pattern_t *source,
const cairo_clip_t *clip)
{
cairo_xcb_surface_t *surface = abstract_surface;
cairo_composite_rectangles_t composite;
cairo_int_status_t status;
status = _cairo_composite_rectangles_init_for_paint (&composite,
&surface->base,
op, source,
clip);
if (unlikely (status))
return status;
if (surface->fallback == NULL) {
status = _cairo_xcb_surface_cairo_paint (surface, op, source, clip);
if (status != CAIRO_INT_STATUS_UNSUPPORTED)
goto done;
status = _cairo_xcb_surface_render_paint (surface, op, source,
&composite);
if (status != CAIRO_INT_STATUS_UNSUPPORTED)
goto done;
}
status = _cairo_surface_paint (_cairo_xcb_surface_fallback (surface,
&composite),
op, source, clip);
done:
_cairo_composite_rectangles_fini (&composite);
return status;
}
