--- /dev/null
+/*
+ * Copyright (C) 2010 Google, Inc.
+ *
+ * This is part of HarfBuzz, a text shaping library.
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
+ * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
+ * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * Google Author(s): Behdad Esfahbod
+ */
+
+#ifndef HB_OT_SHAPE_COMPLEX_PRIVATE_HH
+#define HB_OT_SHAPE_COMPLEX_PRIVATE_HH
+
+#include "hb-private.h"
+
+#include "hb-ot-map-private.hh"
+
+HB_BEGIN_DECLS
+
+
+enum hb_ot_complex_shaper_t {
+ hb_ot_complex_shaper_none,
+ hb_ot_complex_shaper_arabic
+};
+
+
+struct hb_ot_shape_plan_t
+{
+ hb_ot_map_t map;
+ hb_ot_complex_shaper_t shaper;
+};
+
+
+static inline hb_ot_complex_shaper_t
+hb_ot_shape_complex_categorize (const hb_segment_properties_t *props)
+{
+ switch ((int) props->script) {
+ case HB_SCRIPT_ARABIC:
+ case HB_SCRIPT_NKO:
+ case HB_SCRIPT_SYRIAC:
+ return hb_ot_complex_shaper_arabic;
+
+ default:
+ return hb_ot_complex_shaper_none;
+ }
+}
+
+
+
+/*
+ * collect_features()
+ *
+ * Called during planning. Shapers should call plan->map.add_feature().
+ */
+
+HB_INTERNAL void _hb_ot_shape_complex_collect_features_arabic (hb_ot_shape_plan_t *plan, const hb_segment_properties_t *props);
+
+static inline void
+hb_ot_shape_complex_collect_features (hb_ot_shape_plan_t *plan,
+ const hb_segment_properties_t *props)
+{
+ switch (plan->shaper) {
+ case hb_ot_complex_shaper_arabic: _hb_ot_shape_complex_collect_features_arabic (plan, props); return;
+ case hb_ot_complex_shaper_none: default: return;
+ }
+}
+
+
+
+HB_END_DECLS
+
+#endif /* HB_OT_SHAPE_COMPLEX_PRIVATE_HH */
static void
hb_ot_shape_collect_features (hb_ot_shape_plan_t *plan,
- hb_segment_properties_t *props,
+ const hb_segment_properties_t *props,
const hb_feature_t *user_features,
unsigned int num_user_features)
{
for (unsigned int i = 0; i < ARRAY_LENGTH (default_features); i++)
plan->map.add_bool_feature (default_features[i]);
- /* complex */
+ hb_ot_shape_complex_collect_features (plan, props);
for (unsigned int i = 0; i < num_user_features; i++) {
const hb_feature_t *feature = &user_features[i];
void
hb_ot_shape_plan_internal (hb_ot_shape_plan_t *plan,
hb_face_t *face,
- hb_segment_properties_t *props,
+ const hb_segment_properties_t *props,
const hb_feature_t *user_features,
unsigned int num_user_features)
{
+ plan->shaper = hb_ot_shape_complex_categorize (props);
+
hb_ot_shape_collect_features (plan, props, user_features, num_user_features);
plan->map.compile (face, props);