| /* |
| * Copyright © 2007,2008,2009 Red Hat, Inc. |
| * Copyright © 2012,2013 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. |
| * |
| * Red Hat Author(s): Behdad Esfahbod |
| * Google Author(s): Behdad Esfahbod |
| */ |
| |
| #ifndef HB_OT_LAYOUT_HH |
| #define HB_OT_LAYOUT_HH |
| |
| #include "hb.hh" |
| |
| #include "hb-font.hh" |
| #include "hb-buffer.hh" |
| #include "hb-open-type.hh" |
| #include "hb-ot-shape.hh" |
| #include "hb-set-digest.hh" |
| |
| |
| struct hb_ot_shape_plan_t; |
| |
| |
| /* |
| * kern |
| */ |
| |
| HB_INTERNAL bool |
| hb_ot_layout_has_kerning (hb_face_t *face); |
| |
| HB_INTERNAL bool |
| hb_ot_layout_has_machine_kerning (hb_face_t *face); |
| |
| HB_INTERNAL bool |
| hb_ot_layout_has_cross_kerning (hb_face_t *face); |
| |
| HB_INTERNAL void |
| hb_ot_layout_kern (const hb_ot_shape_plan_t *plan, |
| hb_font_t *font, |
| hb_buffer_t *buffer); |
| |
| |
| /* Private API corresponding to hb-ot-layout.h: */ |
| |
| HB_INTERNAL bool |
| hb_ot_layout_table_find_feature (hb_face_t *face, |
| hb_tag_t table_tag, |
| hb_tag_t feature_tag, |
| unsigned int *feature_index); |
| |
| |
| /* |
| * GDEF |
| */ |
| |
| enum hb_ot_layout_glyph_props_flags_t |
| { |
| /* The following three match LookupFlags::Ignore* numbers. */ |
| HB_OT_LAYOUT_GLYPH_PROPS_BASE_GLYPH = 0x02u, |
| HB_OT_LAYOUT_GLYPH_PROPS_LIGATURE = 0x04u, |
| HB_OT_LAYOUT_GLYPH_PROPS_MARK = 0x08u, |
| |
| /* The following are used internally; not derived from GDEF. */ |
| HB_OT_LAYOUT_GLYPH_PROPS_SUBSTITUTED = 0x10u, |
| HB_OT_LAYOUT_GLYPH_PROPS_LIGATED = 0x20u, |
| HB_OT_LAYOUT_GLYPH_PROPS_MULTIPLIED = 0x40u, |
| |
| HB_OT_LAYOUT_GLYPH_PROPS_PRESERVE = HB_OT_LAYOUT_GLYPH_PROPS_SUBSTITUTED | |
| HB_OT_LAYOUT_GLYPH_PROPS_LIGATED | |
| HB_OT_LAYOUT_GLYPH_PROPS_MULTIPLIED |
| }; |
| HB_MARK_AS_FLAG_T (hb_ot_layout_glyph_props_flags_t); |
| |
| |
| /* |
| * GSUB/GPOS |
| */ |
| |
| |
| /* Should be called before all the substitute_lookup's are done. */ |
| HB_INTERNAL void |
| hb_ot_layout_substitute_start (hb_font_t *font, |
| hb_buffer_t *buffer); |
| |
| HB_INTERNAL void |
| hb_ot_layout_delete_glyphs_inplace (hb_buffer_t *buffer, |
| bool (*filter) (const hb_glyph_info_t *info)); |
| |
| namespace OT { |
| struct hb_ot_apply_context_t; |
| struct hb_ot_layout_lookup_accelerator_t; |
| namespace Layout { |
| namespace GSUB_impl { |
| struct SubstLookup; |
| } |
| } |
| } |
| |
| HB_INTERNAL void |
| hb_ot_layout_substitute_lookup (OT::hb_ot_apply_context_t *c, |
| const OT::Layout::GSUB_impl::SubstLookup &lookup, |
| const OT::hb_ot_layout_lookup_accelerator_t &accel); |
| |
| |
| /* Should be called before all the position_lookup's are done. */ |
| HB_INTERNAL void |
| hb_ot_layout_position_start (hb_font_t *font, |
| hb_buffer_t *buffer); |
| |
| /* Should be called after all the position_lookup's are done, to fini advances. */ |
| HB_INTERNAL void |
| hb_ot_layout_position_finish_advances (hb_font_t *font, |
| hb_buffer_t *buffer); |
| |
| /* Should be called after hb_ot_layout_position_finish_advances, to fini offsets. */ |
| HB_INTERNAL void |
| hb_ot_layout_position_finish_offsets (hb_font_t *font, |
| hb_buffer_t *buffer); |
| |
| |
| /* |
| * Buffer var routines. |
| */ |
| |
| /* buffer var allocations, used during the entire shaping process */ |
| #define unicode_props() var2.u16[0] |
| |
| /* buffer var allocations, used during the GSUB/GPOS processing */ |
| #define glyph_props() var1.u16[0] /* GDEF glyph properties */ |
| #define lig_props() var1.u8[2] /* GSUB/GPOS ligature tracking */ |
| #define syllable() var1.u8[3] /* GSUB/GPOS shaping boundaries */ |
| |
| |
| /* Loop over syllables. Based on foreach_cluster(). */ |
| #define foreach_syllable(buffer, start, end) \ |
| for (unsigned int \ |
| _count = buffer->len, \ |
| start = 0, end = _count ? _hb_next_syllable (buffer, 0) : 0; \ |
| start < _count; \ |
| start = end, end = _hb_next_syllable (buffer, start)) |
| |
| static inline unsigned int |
| _hb_next_syllable (hb_buffer_t *buffer, unsigned int start) |
| { |
| hb_glyph_info_t *info = buffer->info; |
| unsigned int count = buffer->len; |
| |
| unsigned int syllable = info[start].syllable(); |
| while (++start < count && syllable == info[start].syllable()) |
| ; |
| |
| return start; |
| } |
| |
| |
| /* unicode_props */ |
| |
| /* Design: |
| * unicode_props() is a two-byte number. The low byte includes: |
| * - General_Category: 5 bits. |
| * - A bit each for: |
| * * Is it Default_Ignorable(); we have a modified Default_Ignorable(). |
| * * Whether it's one of the four Mongolian Free Variation Selectors, |
| * CGJ, or other characters that are hidden but should not be ignored |
| * like most other Default_Ignorable()s do during matching. |
| * * Whether it's a grapheme continuation. |
| * |
| * The high-byte has different meanings, switched by the Gen-Cat: |
| * - For Mn,Mc,Me: the modified Combining_Class. |
| * - For Cf: whether it's ZWJ, ZWNJ, or something else. |
| * - For Ws: index of which space character this is, if space fallback |
| * is needed, ie. we don't set this by default, only if asked to. |
| */ |
| |
| enum hb_unicode_props_flags_t { |
| UPROPS_MASK_GEN_CAT = 0x001Fu, |
| UPROPS_MASK_IGNORABLE = 0x0020u, |
| UPROPS_MASK_HIDDEN = 0x0040u, /* MONGOLIAN FREE VARIATION SELECTOR 1..4, or TAG characters */ |
| UPROPS_MASK_CONTINUATION=0x0080u, |
| |
| /* If GEN_CAT=FORMAT, top byte masks: */ |
| UPROPS_MASK_Cf_ZWJ = 0x0100u, |
| UPROPS_MASK_Cf_ZWNJ = 0x0200u |
| }; |
| HB_MARK_AS_FLAG_T (hb_unicode_props_flags_t); |
| |
| static inline void |
| _hb_glyph_info_set_unicode_props (hb_glyph_info_t *info, hb_buffer_t *buffer) |
| { |
| hb_unicode_funcs_t *unicode = buffer->unicode; |
| unsigned int u = info->codepoint; |
| unsigned int gen_cat = (unsigned int) unicode->general_category (u); |
| unsigned int props = gen_cat; |
| |
| if (u >= 0x80u) |
| { |
| buffer->scratch_flags |= HB_BUFFER_SCRATCH_FLAG_HAS_NON_ASCII; |
| |
| if (unlikely (unicode->is_default_ignorable (u))) |
| { |
| buffer->scratch_flags |= HB_BUFFER_SCRATCH_FLAG_HAS_DEFAULT_IGNORABLES; |
| props |= UPROPS_MASK_IGNORABLE; |
| if (u == 0x200Cu) props |= UPROPS_MASK_Cf_ZWNJ; |
| else if (u == 0x200Du) props |= UPROPS_MASK_Cf_ZWJ; |
| /* Mongolian Free Variation Selectors need to be remembered |
| * because although we need to hide them like default-ignorables, |
| * they need to non-ignorable during shaping. This is similar to |
| * what we do for joiners in Indic-like shapers, but since the |
| * FVSes are GC=Mn, we have use a separate bit to remember them. |
| * Fixes: |
| * https://github.com/harfbuzz/harfbuzz/issues/234 */ |
| else if (unlikely (hb_in_ranges<hb_codepoint_t> (u, 0x180Bu, 0x180Du, 0x180Fu, 0x180Fu))) props |= UPROPS_MASK_HIDDEN; |
| /* TAG characters need similar treatment. Fixes: |
| * https://github.com/harfbuzz/harfbuzz/issues/463 */ |
| else if (unlikely (hb_in_range<hb_codepoint_t> (u, 0xE0020u, 0xE007Fu))) props |= UPROPS_MASK_HIDDEN; |
| /* COMBINING GRAPHEME JOINER should not be skipped; at least some times. |
| * https://github.com/harfbuzz/harfbuzz/issues/554 */ |
| else if (unlikely (u == 0x034Fu)) |
| { |
| buffer->scratch_flags |= HB_BUFFER_SCRATCH_FLAG_HAS_CGJ; |
| props |= UPROPS_MASK_HIDDEN; |
| } |
| } |
| |
| if (unlikely (HB_UNICODE_GENERAL_CATEGORY_IS_MARK (gen_cat))) |
| { |
| props |= UPROPS_MASK_CONTINUATION; |
| props |= unicode->modified_combining_class (u)<<8; |
| } |
| } |
| |
| info->unicode_props() = props; |
| } |
| |
| static inline void |
| _hb_glyph_info_set_general_category (hb_glyph_info_t *info, |
| hb_unicode_general_category_t gen_cat) |
| { |
| /* Clears top-byte. */ |
| info->unicode_props() = (unsigned int) gen_cat | (info->unicode_props() & (0xFF & ~UPROPS_MASK_GEN_CAT)); |
| } |
| |
| static inline hb_unicode_general_category_t |
| _hb_glyph_info_get_general_category (const hb_glyph_info_t *info) |
| { |
| return (hb_unicode_general_category_t) (info->unicode_props() & UPROPS_MASK_GEN_CAT); |
| } |
| |
| static inline bool |
| _hb_glyph_info_is_unicode_mark (const hb_glyph_info_t *info) |
| { |
| return HB_UNICODE_GENERAL_CATEGORY_IS_MARK (info->unicode_props() & UPROPS_MASK_GEN_CAT); |
| } |
| static inline void |
| _hb_glyph_info_set_modified_combining_class (hb_glyph_info_t *info, |
| unsigned int modified_class) |
| { |
| if (unlikely (!_hb_glyph_info_is_unicode_mark (info))) |
| return; |
| info->unicode_props() = (modified_class<<8) | (info->unicode_props() & 0xFF); |
| } |
| static inline unsigned int |
| _hb_glyph_info_get_modified_combining_class (const hb_glyph_info_t *info) |
| { |
| return _hb_glyph_info_is_unicode_mark (info) ? info->unicode_props()>>8 : 0; |
| } |
| #define info_cc(info) (_hb_glyph_info_get_modified_combining_class (&(info))) |
| |
| static inline bool |
| _hb_glyph_info_is_unicode_space (const hb_glyph_info_t *info) |
| { |
| return _hb_glyph_info_get_general_category (info) == |
| HB_UNICODE_GENERAL_CATEGORY_SPACE_SEPARATOR; |
| } |
| static inline void |
| _hb_glyph_info_set_unicode_space_fallback_type (hb_glyph_info_t *info, hb_unicode_funcs_t::space_t s) |
| { |
| if (unlikely (!_hb_glyph_info_is_unicode_space (info))) |
| return; |
| info->unicode_props() = (((unsigned int) s)<<8) | (info->unicode_props() & 0xFF); |
| } |
| static inline hb_unicode_funcs_t::space_t |
| _hb_glyph_info_get_unicode_space_fallback_type (const hb_glyph_info_t *info) |
| { |
| return _hb_glyph_info_is_unicode_space (info) ? |
| (hb_unicode_funcs_t::space_t) (info->unicode_props()>>8) : |
| hb_unicode_funcs_t::NOT_SPACE; |
| } |
| |
| static inline bool _hb_glyph_info_substituted (const hb_glyph_info_t *info); |
| |
| static inline bool |
| _hb_glyph_info_is_default_ignorable (const hb_glyph_info_t *info) |
| { |
| return (info->unicode_props() & UPROPS_MASK_IGNORABLE) && |
| !_hb_glyph_info_substituted (info); |
| } |
| static inline bool |
| _hb_glyph_info_is_default_ignorable_and_not_hidden (const hb_glyph_info_t *info) |
| { |
| return ((info->unicode_props() & (UPROPS_MASK_IGNORABLE|UPROPS_MASK_HIDDEN)) |
| == UPROPS_MASK_IGNORABLE) && |
| !_hb_glyph_info_substituted (info); |
| } |
| static inline void |
| _hb_glyph_info_unhide (hb_glyph_info_t *info) |
| { |
| info->unicode_props() &= ~ UPROPS_MASK_HIDDEN; |
| } |
| |
| static inline void |
| _hb_glyph_info_set_continuation (hb_glyph_info_t *info) |
| { |
| info->unicode_props() |= UPROPS_MASK_CONTINUATION; |
| } |
| static inline void |
| _hb_glyph_info_reset_continuation (hb_glyph_info_t *info) |
| { |
| info->unicode_props() &= ~ UPROPS_MASK_CONTINUATION; |
| } |
| static inline bool |
| _hb_glyph_info_is_continuation (const hb_glyph_info_t *info) |
| { |
| return info->unicode_props() & UPROPS_MASK_CONTINUATION; |
| } |
| |
| static inline bool |
| _hb_grapheme_group_func (const hb_glyph_info_t& a HB_UNUSED, |
| const hb_glyph_info_t& b) |
| { return _hb_glyph_info_is_continuation (&b); } |
| |
| #define foreach_grapheme(buffer, start, end) \ |
| foreach_group (buffer, start, end, _hb_grapheme_group_func) |
| |
| static inline void |
| _hb_ot_layout_reverse_graphemes (hb_buffer_t *buffer) |
| { |
| buffer->reverse_groups (_hb_grapheme_group_func, |
| buffer->cluster_level == HB_BUFFER_CLUSTER_LEVEL_MONOTONE_CHARACTERS); |
| } |
| |
| static inline bool |
| _hb_glyph_info_is_unicode_format (const hb_glyph_info_t *info) |
| { |
| return _hb_glyph_info_get_general_category (info) == |
| HB_UNICODE_GENERAL_CATEGORY_FORMAT; |
| } |
| static inline bool |
| _hb_glyph_info_is_zwnj (const hb_glyph_info_t *info) |
| { |
| return _hb_glyph_info_is_unicode_format (info) && (info->unicode_props() & UPROPS_MASK_Cf_ZWNJ); |
| } |
| static inline bool |
| _hb_glyph_info_is_zwj (const hb_glyph_info_t *info) |
| { |
| return _hb_glyph_info_is_unicode_format (info) && (info->unicode_props() & UPROPS_MASK_Cf_ZWJ); |
| } |
| static inline bool |
| _hb_glyph_info_is_joiner (const hb_glyph_info_t *info) |
| { |
| return _hb_glyph_info_is_unicode_format (info) && (info->unicode_props() & (UPROPS_MASK_Cf_ZWNJ|UPROPS_MASK_Cf_ZWJ)); |
| } |
| static inline void |
| _hb_glyph_info_flip_joiners (hb_glyph_info_t *info) |
| { |
| if (!_hb_glyph_info_is_unicode_format (info)) |
| return; |
| info->unicode_props() ^= UPROPS_MASK_Cf_ZWNJ | UPROPS_MASK_Cf_ZWJ; |
| } |
| |
| /* lig_props: aka lig_id / lig_comp |
| * |
| * When a ligature is formed: |
| * |
| * - The ligature glyph and any marks in between all the same newly allocated |
| * lig_id, |
| * - The ligature glyph will get lig_num_comps set to the number of components |
| * - The marks get lig_comp > 0, reflecting which component of the ligature |
| * they were applied to. |
| * - This is used in GPOS to attach marks to the right component of a ligature |
| * in MarkLigPos, |
| * - Note that when marks are ligated together, much of the above is skipped |
| * and the current lig_id reused. |
| * |
| * When a multiple-substitution is done: |
| * |
| * - All resulting glyphs will have lig_id = 0, |
| * - The resulting glyphs will have lig_comp = 0, 1, 2, ... respectively. |
| * - This is used in GPOS to attach marks to the first component of a |
| * multiple substitution in MarkBasePos. |
| * |
| * The numbers are also used in GPOS to do mark-to-mark positioning only |
| * to marks that belong to the same component of the same ligature. |
| */ |
| |
| static inline void |
| _hb_glyph_info_clear_lig_props (hb_glyph_info_t *info) |
| { |
| info->lig_props() = 0; |
| } |
| |
| #define IS_LIG_BASE 0x10 |
| |
| static inline void |
| _hb_glyph_info_set_lig_props_for_ligature (hb_glyph_info_t *info, |
| unsigned int lig_id, |
| unsigned int lig_num_comps) |
| { |
| info->lig_props() = (lig_id << 5) | IS_LIG_BASE | (lig_num_comps & 0x0F); |
| } |
| |
| static inline void |
| _hb_glyph_info_set_lig_props_for_mark (hb_glyph_info_t *info, |
| unsigned int lig_id, |
| unsigned int lig_comp) |
| { |
| info->lig_props() = (lig_id << 5) | (lig_comp & 0x0F); |
| } |
| |
| static inline void |
| _hb_glyph_info_set_lig_props_for_component (hb_glyph_info_t *info, unsigned int comp) |
| { |
| _hb_glyph_info_set_lig_props_for_mark (info, 0, comp); |
| } |
| |
| static inline unsigned int |
| _hb_glyph_info_get_lig_id (const hb_glyph_info_t *info) |
| { |
| return info->lig_props() >> 5; |
| } |
| |
| static inline bool |
| _hb_glyph_info_ligated_internal (const hb_glyph_info_t *info) |
| { |
| return !!(info->lig_props() & IS_LIG_BASE); |
| } |
| |
| static inline unsigned int |
| _hb_glyph_info_get_lig_comp (const hb_glyph_info_t *info) |
| { |
| if (_hb_glyph_info_ligated_internal (info)) |
| return 0; |
| else |
| return info->lig_props() & 0x0F; |
| } |
| |
| static inline unsigned int |
| _hb_glyph_info_get_lig_num_comps (const hb_glyph_info_t *info) |
| { |
| if ((info->glyph_props() & HB_OT_LAYOUT_GLYPH_PROPS_LIGATURE) && |
| _hb_glyph_info_ligated_internal (info)) |
| return info->lig_props() & 0x0F; |
| else |
| return 1; |
| } |
| |
| static inline uint8_t |
| _hb_allocate_lig_id (hb_buffer_t *buffer) |
| { |
| uint8_t lig_id = buffer->next_serial () & 0x07; |
| if (unlikely (!lig_id)) |
| lig_id = _hb_allocate_lig_id (buffer); /* in case of overflow */ |
| return lig_id; |
| } |
| |
| /* glyph_props: */ |
| |
| static inline void |
| _hb_glyph_info_set_glyph_props (hb_glyph_info_t *info, unsigned int props) |
| { |
| info->glyph_props() = props; |
| } |
| |
| static inline unsigned int |
| _hb_glyph_info_get_glyph_props (const hb_glyph_info_t *info) |
| { |
| return info->glyph_props(); |
| } |
| |
| static inline bool |
| _hb_glyph_info_is_base_glyph (const hb_glyph_info_t *info) |
| { |
| return !!(info->glyph_props() & HB_OT_LAYOUT_GLYPH_PROPS_BASE_GLYPH); |
| } |
| |
| static inline bool |
| _hb_glyph_info_is_ligature (const hb_glyph_info_t *info) |
| { |
| return !!(info->glyph_props() & HB_OT_LAYOUT_GLYPH_PROPS_LIGATURE); |
| } |
| |
| static inline bool |
| _hb_glyph_info_is_mark (const hb_glyph_info_t *info) |
| { |
| return !!(info->glyph_props() & HB_OT_LAYOUT_GLYPH_PROPS_MARK); |
| } |
| |
| static inline bool |
| _hb_glyph_info_substituted (const hb_glyph_info_t *info) |
| { |
| return !!(info->glyph_props() & HB_OT_LAYOUT_GLYPH_PROPS_SUBSTITUTED); |
| } |
| |
| static inline bool |
| _hb_glyph_info_ligated (const hb_glyph_info_t *info) |
| { |
| return !!(info->glyph_props() & HB_OT_LAYOUT_GLYPH_PROPS_LIGATED); |
| } |
| |
| static inline bool |
| _hb_glyph_info_multiplied (const hb_glyph_info_t *info) |
| { |
| return !!(info->glyph_props() & HB_OT_LAYOUT_GLYPH_PROPS_MULTIPLIED); |
| } |
| |
| static inline bool |
| _hb_glyph_info_ligated_and_didnt_multiply (const hb_glyph_info_t *info) |
| { |
| return _hb_glyph_info_ligated (info) && !_hb_glyph_info_multiplied (info); |
| } |
| |
| static inline void |
| _hb_glyph_info_clear_ligated_and_multiplied (hb_glyph_info_t *info) |
| { |
| info->glyph_props() &= ~(HB_OT_LAYOUT_GLYPH_PROPS_LIGATED | |
| HB_OT_LAYOUT_GLYPH_PROPS_MULTIPLIED); |
| } |
| |
| static inline void |
| _hb_glyph_info_clear_substituted (hb_glyph_info_t *info) |
| { |
| info->glyph_props() &= ~(HB_OT_LAYOUT_GLYPH_PROPS_SUBSTITUTED); |
| } |
| |
| static inline void |
| _hb_clear_substitution_flags (const hb_ot_shape_plan_t *plan HB_UNUSED, |
| hb_font_t *font HB_UNUSED, |
| hb_buffer_t *buffer) |
| { |
| hb_glyph_info_t *info = buffer->info; |
| unsigned int count = buffer->len; |
| for (unsigned int i = 0; i < count; i++) |
| _hb_glyph_info_clear_substituted (&info[i]); |
| } |
| |
| |
| /* Allocation / deallocation. */ |
| |
| static inline void |
| _hb_buffer_allocate_unicode_vars (hb_buffer_t *buffer) |
| { |
| HB_BUFFER_ALLOCATE_VAR (buffer, unicode_props); |
| } |
| |
| static inline void |
| _hb_buffer_deallocate_unicode_vars (hb_buffer_t *buffer) |
| { |
| HB_BUFFER_DEALLOCATE_VAR (buffer, unicode_props); |
| } |
| |
| static inline void |
| _hb_buffer_assert_unicode_vars (hb_buffer_t *buffer) |
| { |
| HB_BUFFER_ASSERT_VAR (buffer, unicode_props); |
| } |
| |
| static inline void |
| _hb_buffer_allocate_gsubgpos_vars (hb_buffer_t *buffer) |
| { |
| HB_BUFFER_ALLOCATE_VAR (buffer, glyph_props); |
| HB_BUFFER_ALLOCATE_VAR (buffer, lig_props); |
| } |
| |
| static inline void |
| _hb_buffer_deallocate_gsubgpos_vars (hb_buffer_t *buffer) |
| { |
| HB_BUFFER_DEALLOCATE_VAR (buffer, lig_props); |
| HB_BUFFER_DEALLOCATE_VAR (buffer, glyph_props); |
| } |
| |
| static inline void |
| _hb_buffer_assert_gsubgpos_vars (hb_buffer_t *buffer) |
| { |
| HB_BUFFER_ASSERT_VAR (buffer, glyph_props); |
| HB_BUFFER_ASSERT_VAR (buffer, lig_props); |
| } |
| |
| /* Make sure no one directly touches our props... */ |
| #undef unicode_props0 |
| #undef unicode_props1 |
| #undef lig_props |
| #undef glyph_props |
| |
| #endif /* HB_OT_LAYOUT_HH */ |