Bug#750785: Slowness with context and xetex

[Behdad Esfahbod <behdad@behdad.org>]

Thanks Hilmar.  See below:

On Mon, Aug 11, 2014 at 5:40 PM, Hilmar Preusse <hille42@web.de> wrote:

static hb_bool_t
hb_shape_plan_matches (const hb_shape_plan_t          *shape_plan,
                       const hb_shape_plan_proposal_t *proposal)
{
  return hb_segment_properties_equal (&shape_plan->props, &proposal->props) &&
         hb_shape_plan_user_features_match (shape_plan, proposal) &&
         ((shape_plan->default_shaper_list && proposal->shaper_list == NULL) ||
          (shape_plan->shaper_func == proposal->shaper_func));
}

Before the return, add something like this:

printf("DEBUG props %d features %d default_shaper %d shaper_list %d plan func %p proposal func %p\n",

         hb_segment_properties_equal (&shape_plan->props, &proposal->props),

         hb_shape_plan_user_features_match (shape_plan, proposal),
         shape_plan->default_shaper_list, proposal->shaper_list == NULL,
         shape_plan->shaper_func, proposal->shaper_func);