657   hb_buffer_t *buffer;  in hb_buffer_create()  local
659   if (!(buffer = hb_object_create<hb_buffer_t> ()))  in hb_buffer_create()
662   buffer->max_len = HB_BUFFER_MAX_LEN_DEFAULT;  in hb_buffer_create()
663   buffer->max_ops = HB_BUFFER_MAX_OPS_DEFAULT;  in hb_buffer_create()
665   buffer->reset ();  in hb_buffer_create()
667   return buffer;  in hb_buffer_create()
698 hb_buffer_reference (hb_buffer_t *buffer)  in hb_buffer_reference()  argument
700   return hb_object_reference (buffer);  in hb_buffer_reference()
714 hb_buffer_destroy (hb_buffer_t *buffer)  in hb_buffer_destroy()  argument
716   if (!hb_object_destroy (buffer)) return;  in hb_buffer_destroy()
718   hb_unicode_funcs_destroy (buffer->unicode);  in hb_buffer_destroy()
720   free (buffer->info);  in hb_buffer_destroy()
721   free (buffer->pos);  in hb_buffer_destroy()
723   if (buffer->message_destroy)  in hb_buffer_destroy()
724     buffer->message_destroy (buffer->message_data);  in hb_buffer_destroy()
727   free (buffer);  in hb_buffer_destroy()
745 hb_buffer_set_user_data (hb_buffer_t        *buffer,  in hb_buffer_set_user_data()  argument
751   return hb_object_set_user_data (buffer, key, data, destroy, replace);  in hb_buffer_set_user_data()
767 hb_buffer_get_user_data (hb_buffer_t        *buffer,  in hb_buffer_get_user_data()  argument
770   return hb_object_get_user_data (buffer, key);  in hb_buffer_get_user_data()
785 hb_buffer_set_content_type (hb_buffer_t              *buffer,  in hb_buffer_set_content_type()  argument
788   buffer->content_type = content_type;  in hb_buffer_set_content_type()
804 hb_buffer_get_content_type (hb_buffer_t *buffer)  in hb_buffer_get_content_type()  argument
806   return buffer->content_type;  in hb_buffer_get_content_type()
821 hb_buffer_set_unicode_funcs (hb_buffer_t        *buffer,  in hb_buffer_set_unicode_funcs()  argument
824   if (unlikely (hb_object_is_immutable (buffer)))  in hb_buffer_set_unicode_funcs()
831   hb_unicode_funcs_destroy (buffer->unicode);  in hb_buffer_set_unicode_funcs()
832   buffer->unicode = unicode_funcs;  in hb_buffer_set_unicode_funcs()
846 hb_buffer_get_unicode_funcs (hb_buffer_t        *buffer)  in hb_buffer_get_unicode_funcs()  argument
848   return buffer->unicode;  in hb_buffer_get_unicode_funcs()
867 hb_buffer_set_direction (hb_buffer_t    *buffer,  in hb_buffer_set_direction()  argument
871   if (unlikely (hb_object_is_immutable (buffer)))  in hb_buffer_set_direction()
874   buffer->props.direction = direction;  in hb_buffer_set_direction()
889 hb_buffer_get_direction (hb_buffer_t    *buffer)  in hb_buffer_get_direction()  argument
891   return buffer->props.direction;  in hb_buffer_get_direction()
912 hb_buffer_set_script (hb_buffer_t *buffer,  in hb_buffer_set_script()  argument
915   if (unlikely (hb_object_is_immutable (buffer)))  in hb_buffer_set_script()
918   buffer->props.script = script;  in hb_buffer_set_script()
933 hb_buffer_get_script (hb_buffer_t *buffer)  in hb_buffer_get_script()  argument
935   return buffer->props.script;  in hb_buffer_get_script()
956 hb_buffer_set_language (hb_buffer_t   *buffer,  in hb_buffer_set_language()  argument
959   if (unlikely (hb_object_is_immutable (buffer)))  in hb_buffer_set_language()
962   buffer->props.language = language;  in hb_buffer_set_language()
977 hb_buffer_get_language (hb_buffer_t *buffer)  in hb_buffer_get_language()  argument
979   return buffer->props.language;  in hb_buffer_get_language()
994 hb_buffer_set_segment_properties (hb_buffer_t *buffer,  in hb_buffer_set_segment_properties()  argument
997   if (unlikely (hb_object_is_immutable (buffer)))  in hb_buffer_set_segment_properties()
1000   buffer->props = *props;  in hb_buffer_set_segment_properties()
1013 hb_buffer_get_segment_properties (hb_buffer_t *buffer,  in hb_buffer_get_segment_properties()  argument
1016   *props = buffer->props;  in hb_buffer_get_segment_properties()
1030 hb_buffer_set_flags (hb_buffer_t       *buffer,  in hb_buffer_set_flags()  argument
1033   if (unlikely (hb_object_is_immutable (buffer)))  in hb_buffer_set_flags()
1036   buffer->flags = flags;  in hb_buffer_set_flags()
1051 hb_buffer_get_flags (hb_buffer_t *buffer)  in hb_buffer_get_flags()  argument
1053   return buffer->flags;  in hb_buffer_get_flags()
1068 hb_buffer_set_cluster_level (hb_buffer_t               *buffer,  in hb_buffer_set_cluster_level()  argument
1071   if (unlikely (hb_object_is_immutable (buffer)))  in hb_buffer_set_cluster_level()
1074   buffer->cluster_level = cluster_level;  in hb_buffer_set_cluster_level()
1090 hb_buffer_get_cluster_level (hb_buffer_t *buffer)  in hb_buffer_get_cluster_level()  argument
1092   return buffer->cluster_level;  in hb_buffer_get_cluster_level()
1109 hb_buffer_set_replacement_codepoint (hb_buffer_t    *buffer,  in hb_buffer_set_replacement_codepoint()  argument
1112   if (unlikely (hb_object_is_immutable (buffer)))  in hb_buffer_set_replacement_codepoint()
1115   buffer->replacement = replacement;  in hb_buffer_set_replacement_codepoint()
1131 hb_buffer_get_replacement_codepoint (hb_buffer_t    *buffer)  in hb_buffer_get_replacement_codepoint()  argument
1133   return buffer->replacement;  in hb_buffer_get_replacement_codepoint()
1150 hb_buffer_set_invisible_glyph (hb_buffer_t    *buffer,  in hb_buffer_set_invisible_glyph()  argument
1153   if (unlikely (hb_object_is_immutable (buffer)))  in hb_buffer_set_invisible_glyph()
1156   buffer->invisible = invisible;  in hb_buffer_set_invisible_glyph()
1171 hb_buffer_get_invisible_glyph (hb_buffer_t    *buffer)  in hb_buffer_get_invisible_glyph()  argument
1173   return buffer->invisible;  in hb_buffer_get_invisible_glyph()
1187 hb_buffer_reset (hb_buffer_t *buffer)  in hb_buffer_reset()  argument
1189   if (unlikely (hb_object_is_immutable (buffer)))  in hb_buffer_reset()
1192   buffer->reset ();  in hb_buffer_reset()
1205 hb_buffer_clear_contents (hb_buffer_t *buffer)  in hb_buffer_clear_contents()  argument
1207   if (unlikely (hb_object_is_immutable (buffer)))  in hb_buffer_clear_contents()
1210   buffer->clear ();  in hb_buffer_clear_contents()
1226 hb_buffer_pre_allocate (hb_buffer_t *buffer, unsigned int size)  in hb_buffer_pre_allocate()  argument
1228   return buffer->ensure (size);  in hb_buffer_pre_allocate()
1243 hb_buffer_allocation_successful (hb_buffer_t  *buffer)  in hb_buffer_allocation_successful()  argument
1245   return buffer->successful;  in hb_buffer_allocation_successful()
1266 hb_buffer_add (hb_buffer_t    *buffer,  in hb_buffer_add()  argument
1270   buffer->add (codepoint, cluster);  in hb_buffer_add()
1271   buffer->clear_context (1);  in hb_buffer_add()
1288 hb_buffer_set_length (hb_buffer_t  *buffer,  in hb_buffer_set_length()  argument
1291   if (unlikely (hb_object_is_immutable (buffer)))  in hb_buffer_set_length()
1294   if (unlikely (!buffer->ensure (length)))  in hb_buffer_set_length()
1298   if (length > buffer->len) {  in hb_buffer_set_length()
1299     memset (buffer->info + buffer->len, 0, sizeof (buffer->info[0]) * (length - buffer->len));  in hb_buffer_set_length()
1300     if (buffer->have_positions)  in hb_buffer_set_length()
1301       memset (buffer->pos + buffer->len, 0, sizeof (buffer->pos[0]) * (length - buffer->len));  in hb_buffer_set_length()
1304   buffer->len = length;  in hb_buffer_set_length()
1308     buffer->content_type = HB_BUFFER_CONTENT_TYPE_INVALID;  in hb_buffer_set_length()
1309     buffer->clear_context (0);  in hb_buffer_set_length()
1311   buffer->clear_context (1);  in hb_buffer_set_length()
1329 hb_buffer_get_length (hb_buffer_t *buffer)  in hb_buffer_get_length()  argument
1331   return buffer->len;  in hb_buffer_get_length()
1349 hb_buffer_get_glyph_infos (hb_buffer_t  *buffer,  in hb_buffer_get_glyph_infos()  argument
1353     *length = buffer->len;  in hb_buffer_get_glyph_infos()
1355   return (hb_glyph_info_t *) buffer->info;  in hb_buffer_get_glyph_infos()
1373 hb_buffer_get_glyph_positions (hb_buffer_t  *buffer,  in hb_buffer_get_glyph_positions()  argument
1376   if (!buffer->have_positions)  in hb_buffer_get_glyph_positions()
1377     buffer->clear_positions ();  in hb_buffer_get_glyph_positions()
1380     *length = buffer->len;  in hb_buffer_get_glyph_positions()
1382   return (hb_glyph_position_t *) buffer->pos;  in hb_buffer_get_glyph_positions()
1399 hb_buffer_has_positions (hb_buffer_t  *buffer)  in hb_buffer_has_positions()  argument
1401   return buffer->have_positions;  in hb_buffer_has_positions()
1430 hb_buffer_reverse (hb_buffer_t *buffer)  in hb_buffer_reverse()  argument
1432   buffer->reverse ();  in hb_buffer_reverse()
1446 hb_buffer_reverse_range (hb_buffer_t *buffer,  in hb_buffer_reverse_range()  argument
1449   buffer->reverse_range (start, end);  in hb_buffer_reverse_range()
1463 hb_buffer_reverse_clusters (hb_buffer_t *buffer)  in hb_buffer_reverse_clusters()  argument
1465   buffer->reverse_clusters ();  in hb_buffer_reverse_clusters()
1497 hb_buffer_guess_segment_properties (hb_buffer_t *buffer)  in hb_buffer_guess_segment_properties()  argument
1499   buffer->guess_segment_properties ();  in hb_buffer_guess_segment_properties()
1504 hb_buffer_add_utf (hb_buffer_t  *buffer,  in hb_buffer_add_utf()  argument
1511   const hb_codepoint_t replacement = buffer->replacement;  in hb_buffer_add_utf()
1513   buffer->assert_unicode ();  in hb_buffer_add_utf()
1515   if (unlikely (hb_object_is_immutable (buffer)))  in hb_buffer_add_utf()
1526 		!buffer->ensure (buffer->len + item_length * sizeof (T) / 4)))  in hb_buffer_add_utf()
1536   if (!buffer->len && item_offset > 0)  in hb_buffer_add_utf()
1539     buffer->clear_context (0);  in hb_buffer_add_utf()
1542     while (start < prev && buffer->context_len[0] < buffer->CONTEXT_LENGTH)  in hb_buffer_add_utf()
1546       buffer->context[0][buffer->context_len[0]++] = u;  in hb_buffer_add_utf()
1557     buffer->add (u, old_next - (const T *) text);  in hb_buffer_add_utf()
1561   buffer->clear_context (1);  in hb_buffer_add_utf()
1563   while (next < end && buffer->context_len[1] < buffer->CONTEXT_LENGTH)  in hb_buffer_add_utf()
1567     buffer->context[1][buffer->context_len[1]++] = u;  in hb_buffer_add_utf()
1570   buffer->content_type = HB_BUFFER_CONTENT_TYPE_UNICODE;  in hb_buffer_add_utf()
1591 hb_buffer_add_utf8 (hb_buffer_t  *buffer,  in hb_buffer_add_utf8()  argument
1597 …hb_buffer_add_utf<hb_utf8_t> (buffer, (const uint8_t *) text, text_length, item_offset, item_lengt…  in hb_buffer_add_utf8()
1617 hb_buffer_add_utf16 (hb_buffer_t    *buffer,  in hb_buffer_add_utf16()  argument
1623   hb_buffer_add_utf<hb_utf16_t> (buffer, text, text_length, item_offset, item_length);  in hb_buffer_add_utf16()
1643 hb_buffer_add_utf32 (hb_buffer_t    *buffer,  in hb_buffer_add_utf32()  argument
1649   hb_buffer_add_utf<hb_utf32_t> (buffer, text, text_length, item_offset, item_length);  in hb_buffer_add_utf32()
1670 hb_buffer_add_latin1 (hb_buffer_t   *buffer,  in hb_buffer_add_latin1()  argument
1676   hb_buffer_add_utf<hb_latin1_t> (buffer, text, text_length, item_offset, item_length);  in hb_buffer_add_latin1()
1704 hb_buffer_add_codepoints (hb_buffer_t          *buffer,  in hb_buffer_add_codepoints()  argument
1710   hb_buffer_add_utf<hb_utf32_novalidate_t> (buffer, text, text_length, item_offset, item_length);  in hb_buffer_add_codepoints()
1726 hb_buffer_append (hb_buffer_t *buffer,  in hb_buffer_append()  argument
1731   assert (!buffer->have_output && !source->have_output);  in hb_buffer_append()
1732   assert (buffer->have_positions == source->have_positions ||  in hb_buffer_append()
1733 	  !buffer->len || !source->len);  in hb_buffer_append()
1734   assert (buffer->content_type == source->content_type ||  in hb_buffer_append()
1735 	  !buffer->len || !source->len);  in hb_buffer_append()
1744   if (buffer->len + (end - start) < buffer->len) /* Overflows. */  in hb_buffer_append()
1746     buffer->successful = false;  in hb_buffer_append()
1750   unsigned int orig_len = buffer->len;  in hb_buffer_append()
1751   hb_buffer_set_length (buffer, buffer->len + (end - start));  in hb_buffer_append()
1752   if (unlikely (!buffer->successful))  in hb_buffer_append()
1756     buffer->content_type = source->content_type;  in hb_buffer_append()
1757   if (!buffer->have_positions && source->have_positions)  in hb_buffer_append()
1758     buffer->clear_positions ();  in hb_buffer_append()
1760   memcpy (buffer->info + orig_len, source->info + start, (end - start) * sizeof (buffer->info[0]));  in hb_buffer_append()
1761   if (buffer->have_positions)  in hb_buffer_append()
1762     memcpy (buffer->pos + orig_len, source->pos + start, (end - start) * sizeof (buffer->pos[0]));  in hb_buffer_append()
1774 normalize_glyphs_cluster (hb_buffer_t *buffer,  in normalize_glyphs_cluster()  argument
1779   hb_glyph_position_t *pos = buffer->pos;  in normalize_glyphs_cluster()
1808 …hb_stable_sort (buffer->info + start, end - start - 1, compare_info_codepoint, buffer->pos + start…  in normalize_glyphs_cluster()
1817 …hb_stable_sort (buffer->info + start + 1, end - start - 1, compare_info_codepoint, buffer->pos + s…  in normalize_glyphs_cluster()
1833 hb_buffer_normalize_glyphs (hb_buffer_t *buffer)  in hb_buffer_normalize_glyphs()  argument
1835   assert (buffer->have_positions);  in hb_buffer_normalize_glyphs()
1837   buffer->assert_glyphs ();  in hb_buffer_normalize_glyphs()
1839   bool backward = HB_DIRECTION_IS_BACKWARD (buffer->props.direction);  in hb_buffer_normalize_glyphs()
1841   foreach_cluster (buffer, start, end)  in hb_buffer_normalize_glyphs()
1842     normalize_glyphs_cluster (buffer, start, end, backward);  in hb_buffer_normalize_glyphs()
1885 hb_buffer_diff (hb_buffer_t *buffer,  in hb_buffer_diff()  argument
1890   if (buffer->content_type != reference->content_type && buffer->len && reference->len)  in hb_buffer_diff()
1898   if (buffer->len != count)  in hb_buffer_diff()
1920   const hb_glyph_info_t *buf_info = buffer->info;  in hb_buffer_diff()
1938   if (buffer->content_type == HB_BUFFER_CONTENT_TYPE_GLYPHS)  in hb_buffer_diff()
1940     assert (buffer->have_positions);  in hb_buffer_diff()
1941     const hb_glyph_position_t *buf_pos = buffer->pos;  in hb_buffer_diff()
1979 hb_buffer_set_message_func (hb_buffer_t *buffer,  in hb_buffer_set_message_func()  argument
1983   if (buffer->message_destroy)  in hb_buffer_set_message_func()
1984     buffer->message_destroy (buffer->message_data);  in hb_buffer_set_message_func()
1987     buffer->message_func = func;  in hb_buffer_set_message_func()
1988     buffer->message_data = user_data;  in hb_buffer_set_message_func()
1989     buffer->message_destroy = destroy;  in hb_buffer_set_message_func()
1991     buffer->message_func = nullptr;  in hb_buffer_set_message_func()
1992     buffer->message_data = nullptr;  in hb_buffer_set_message_func()
1993     buffer->message_destroy = nullptr;  in hb_buffer_set_message_func()