Update harfbuzz-ng to 0.9.24

third_party/harfbuzz-ng/src/hb-ot-layout-jstf-table.hh

+/*
+ * Copyright © 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.
+ *
+ * Google Author(s): Behdad Esfahbod
+ */
+
+#ifndef HB_OT_LAYOUT_JSTF_TABLE_HH
+#define HB_OT_LAYOUT_JSTF_TABLE_HH
+
+#include "hb-open-type-private.hh"
+#include "hb-ot-layout-gpos-table.hh"
+
+
+namespace OT {
+
+
+/*
+ * JstfModList -- Justification Modification List Tables
+ */
+
+typedef IndexArray JstfModList;
+
+
+/*
+ * JstfMax -- Justification Maximum Table
+ */
+
+typedef OffsetListOf<PosLookup> JstfMax;
+
+
+/*
+ * JstfPriority -- Justification Priority Table
+ */
+
+struct JstfPriority
+{
+  inline bool sanitize (hb_sanitize_context_t *c) {
+    TRACE_SANITIZE (this);
+    return TRACE_RETURN (c->check_struct (this) &&
+                         shrinkageEnableGSUB.sanitize (c, this) &&
+                         shrinkageDisableGSUB.sanitize (c, this) &&
+                         shrinkageEnableGPOS.sanitize (c, this) &&
+                         shrinkageDisableGPOS.sanitize (c, this) &&
+                         shrinkageJstfMax.sanitize (c, this) &&
+                         extensionEnableGSUB.sanitize (c, this) &&
+                         extensionDisableGSUB.sanitize (c, this) &&
+                         extensionEnableGPOS.sanitize (c, this) &&
+                         extensionDisableGPOS.sanitize (c, this) &&
+                         extensionJstfMax.sanitize (c, this));
+  }
+
+  protected:
+  OffsetTo<JstfModList>
+                shrinkageEnableGSUB;    /* Offset to Shrinkage Enable GSUB
+                                         * JstfModList table--from beginning of
+                                         * JstfPriority table--may be NULL */
+  OffsetTo<JstfModList>
+                shrinkageDisableGSUB;   /* Offset to Shrinkage Disable GSUB
+                                         * JstfModList table--from beginning of
+                                         * JstfPriority table--may be NULL */
+  OffsetTo<JstfModList>
+                shrinkageEnableGPOS;    /* Offset to Shrinkage Enable GPOS
+                                         * JstfModList table--from beginning of
+                                         * JstfPriority table--may be NULL */
+  OffsetTo<JstfModList>
+                shrinkageDisableGPOS;   /* Offset to Shrinkage Disable GPOS
+                                         * JstfModList table--from beginning of
+                                         * JstfPriority table--may be NULL */
+  OffsetTo<JstfMax>
+                shrinkageJstfMax;       /* Offset to Shrinkage JstfMax table--
+                                         * from beginning of JstfPriority table
+                                         * --may be NULL */
+  OffsetTo<JstfModList>
+                extensionEnableGSUB;    /* Offset to Extension Enable GSUB
+                                         * JstfModList table--from beginning of
+                                         * JstfPriority table--may be NULL */
+  OffsetTo<JstfModList>
+                extensionDisableGSUB;   /* Offset to Extension Disable GSUB
+                                         * JstfModList table--from beginning of
+                                         * JstfPriority table--may be NULL */
+  OffsetTo<JstfModList>
+                extensionEnableGPOS;    /* Offset to Extension Enable GPOS
+                                         * JstfModList table--from beginning of
+                                         * JstfPriority table--may be NULL */
+  OffsetTo<JstfModList>
+                extensionDisableGPOS;   /* Offset to Extension Disable GPOS
+                                         * JstfModList table--from beginning of
+                                         * JstfPriority table--may be NULL */
+  OffsetTo<JstfMax>
+                extensionJstfMax;       /* Offset to Extension JstfMax table--
+                                         * from beginning of JstfPriority table
+                                         * --may be NULL */
+
+  public:
+  DEFINE_SIZE_STATIC (20);
+};
+
+
+/*
+ * JstfLangSys -- Justification Language System Table
+ */
+
+struct JstfLangSys : OffsetListOf<JstfPriority>
+{
+  inline bool sanitize (hb_sanitize_context_t *c,
+                        const Record<JstfLangSys>::sanitize_closure_t * = NULL) {
+    TRACE_SANITIZE (this);
+    return TRACE_RETURN (OffsetListOf<JstfPriority>::sanitize (c));
+  }
+};
+
+
+/*
+ * ExtenderGlyphs -- Extender Glyph Table
+ */
+
+typedef SortedArrayOf<GlyphID> ExtenderGlyphs;
+
+
+/*
+ * JstfScript -- The Justification Table
+ */
+
+struct JstfScript
+{
+  inline unsigned int get_lang_sys_count (void) const
+  { return langSys.len; }
+  inline const Tag& get_lang_sys_tag (unsigned int i) const
+  { return langSys.get_tag (i); }
+  inline unsigned int get_lang_sys_tags (unsigned int start_offset,
+                                         unsigned int *lang_sys_count /* IN/OUT */,
+                                         hb_tag_t     *lang_sys_tags /* OUT */) const
+  { return langSys.get_tags (start_offset, lang_sys_count, lang_sys_tags); }
+  inline const JstfLangSys& get_lang_sys (unsigned int i) const
+  {
+    if (i == Index::NOT_FOUND_INDEX) return get_default_lang_sys ();
+    return this+langSys[i].offset;
+  }
+  inline bool find_lang_sys_index (hb_tag_t tag, unsigned int *index) const
+  { return langSys.find_index (tag, index); }
+
+  inline bool has_default_lang_sys (void) const { return defaultLangSys != 0; }
+  inline const JstfLangSys& get_default_lang_sys (void) const { return this+defaultLangSys; }
+
+  inline bool sanitize (hb_sanitize_context_t *c,
+                        const Record<JstfScript>::sanitize_closure_t * = NULL) {
+    TRACE_SANITIZE (this);
+    return TRACE_RETURN (extenderGlyphs.sanitize (c, this) &&
+                         defaultLangSys.sanitize (c, this) &&
+                         langSys.sanitize (c, this));
+  }
+
+  protected:
+  OffsetTo<ExtenderGlyphs>
+                extenderGlyphs; /* Offset to ExtenderGlyph table--from beginning
+                                 * of JstfScript table-may be NULL */
+  OffsetTo<JstfLangSys>
+                defaultLangSys; /* Offset to DefaultJstfLangSys table--from
+                                 * beginning of JstfScript table--may be Null */
+  RecordArrayOf<JstfLangSys>
+                langSys;        /* Array of JstfLangSysRecords--listed
+                                 * alphabetically by LangSysTag */
+  public:
+  DEFINE_SIZE_ARRAY (6, langSys);
+};
+
+
+/*
+ * JSTF -- The Justification Table
+ */
+
+struct JSTF
+{
+  static const hb_tag_t tableTag        = HB_OT_TAG_JSTF;
+
+  inline unsigned int get_script_count (void) const
+  { return scriptList.len; }
+  inline const Tag& get_script_tag (unsigned int i) const
+  { return scriptList.get_tag (i); }
+  inline unsigned int get_script_tags (unsigned int start_offset,
+                                       unsigned int *script_count /* IN/OUT */,
+                                       hb_tag_t     *script_tags /* OUT */) const
+  { return scriptList.get_tags (start_offset, script_count, script_tags); }
+  inline const JstfScript& get_script (unsigned int i) const
+  { return this+scriptList[i].offset; }
+  inline bool find_script_index (hb_tag_t tag, unsigned int *index) const
+  { return scriptList.find_index (tag, index); }
+
+  inline bool sanitize (hb_sanitize_context_t *c) {
+    TRACE_SANITIZE (this);
+    return TRACE_RETURN (version.sanitize (c) && likely (version.major == 1) &&
+                         scriptList.sanitize (c, this));
+  }
+
+  protected:
+  FixedVersion  version;        /* Version of the JSTF table--initially set
+                                 * to 0x00010000 */
+  RecordArrayOf<JstfScript>
+                scriptList;     /* Array of JstfScripts--listed
+                                 * alphabetically by ScriptTag */
+  public:
+  DEFINE_SIZE_ARRAY (6, scriptList);
+};
+
+
+} /* namespace OT */
+
+
+#endif /* HB_OT_LAYOUT_JSTF_TABLE_HH */