-static inline void
-insert_dotted_circles_khmer (const hb_ot_shape_plan_t *plan HB_UNUSED,
- hb_font_t *font,
- hb_buffer_t *buffer)
-{
- if (unlikely (buffer->flags & HB_BUFFER_FLAG_DO_NOT_INSERT_DOTTED_CIRCLE))
- return;
-
- /* Note: This loop is extra overhead, but should not be measurable.
- * TODO Use a buffer scratch flag to remove the loop. */
- bool has_broken_syllables = false;
- unsigned int count = buffer->len;
- hb_glyph_info_t *info = buffer->info;
- for (unsigned int i = 0; i < count; i++)
- if ((info[i].syllable() & 0x0F) == khmer_broken_cluster)
- {
- has_broken_syllables = true;
- break;
- }
- if (likely (!has_broken_syllables))
- return;
-
-
- hb_codepoint_t dottedcircle_glyph;
- if (!font->get_nominal_glyph (0x25CCu, &dottedcircle_glyph))
- return;
-
- hb_glyph_info_t dottedcircle = {0};
- dottedcircle.codepoint = 0x25CCu;
- set_khmer_properties (dottedcircle);
- dottedcircle.codepoint = dottedcircle_glyph;
-
- buffer->clear_output ();
-
- buffer->idx = 0;
- unsigned int last_syllable = 0;
- while (buffer->idx < buffer->len && buffer->successful)
- {
- unsigned int syllable = buffer->cur().syllable();
- khmer_syllable_type_t syllable_type = (khmer_syllable_type_t) (syllable & 0x0F);
- if (unlikely (last_syllable != syllable && syllable_type == khmer_broken_cluster))
- {
- last_syllable = syllable;
-
- hb_glyph_info_t ginfo = dottedcircle;
- ginfo.cluster = buffer->cur().cluster;
- ginfo.mask = buffer->cur().mask;
- ginfo.syllable() = buffer->cur().syllable();
-
- /* Insert dottedcircle after possible Repha. */
- while (buffer->idx < buffer->len && buffer->successful &&
- last_syllable == buffer->cur().syllable() &&
- buffer->cur().khmer_category() == OT_Repha)
- buffer->next_glyph ();
-
- buffer->output_info (ginfo);
- }
- else
- buffer->next_glyph ();
- }
- buffer->swap_buffers ();
-}
-