hb-shape.c

   1 // C99 port from c++ is protected by a GNU Lesser GPLv3
   2 // Copyright © 2013 Sylvain BERTRAND <sylvain.bertrand@gmail.com>
   3 //                                   <sylware@legeek.net>
   4 #include <stddef.h>
   5 #include <assert.h>
   6
   7 #include "hb.h"
   8 #include "hb-private.h"
   9 #include "hb-atomic-private.h"
  10 #include "hb-buffer-private.h"
  11 #include "hb-shaper-private.h"
  12 #include "hb-shape-plan-private.h"
  13 #include "hb-font-private.h"
  14
  15 hb_bool_t
  16 hb_shape_full(hb_font_t *font,
  17               hb_buffer_t *buffer,
  18               const hb_feature_t *features,
  19               unsigned num_features,
  20               const char * const *shaper_list)
  21 {
  22   if (!buffer->len)
  23     return TRUE;
  24
  25   assert(buffer->content_type == HB_BUFFER_CONTENT_TYPE_UNICODE);
  26
  27   hb_shape_plan_t *shape_plan = hb_shape_plan_create_cached(font->face,
  28                            &buffer->props, features, num_features, shaper_list);
  29
  30   hb_bool_t res = hb_shape_plan_execute(shape_plan, font, buffer, features,
  31                                                                   num_features);
  32   hb_shape_plan_destroy(shape_plan);
  33
  34   if (res)
  35     buffer->content_type = HB_BUFFER_CONTENT_TYPE_GLYPHS;
  36   return res;
  37 }
  38
  39 void
  40 hb_shape(hb_font_t *font,
  41          hb_buffer_t *buffer,
  42          const hb_feature_t *features,
  43          unsigned num_features)
  44 {
  45   hb_shape_full(font, buffer, features, num_features, NULL);
  46 }