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-rw-r--r--Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-layout.h66
1 files changed, 64 insertions, 2 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-layout.h b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-layout.h
index 545d5f7fc4e..d47ba0fc92b 100644
--- a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-layout.h
+++ b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-layout.h
@@ -24,7 +24,7 @@
* Red Hat Author(s): Behdad Esfahbod
*/
-#ifndef HB_OT_H_IN
+#if !defined(HB_OT_H_IN) && !defined(HB_NO_SINGLE_HEADER_ERROR)
#error "Include <hb-ot.h> instead."
#endif
@@ -38,10 +38,35 @@
HB_BEGIN_DECLS
+/**
+ * HB_OT_TAG_BASE:
+ *
+ * OpenType [Baseline Table](https://docs.microsoft.com/en-us/typography/opentype/spec/base).
+ */
#define HB_OT_TAG_BASE HB_TAG('B','A','S','E')
+/**
+ * HB_OT_TAG_GDEF:
+ *
+ * OpenType [Glyph Definition Table](https://docs.microsoft.com/en-us/typography/opentype/spec/gdef).
+ */
#define HB_OT_TAG_GDEF HB_TAG('G','D','E','F')
+/**
+ * HB_OT_TAG_GSUB:
+ *
+ * OpenType [Glyph Substitution Table](https://docs.microsoft.com/en-us/typography/opentype/spec/gsub).
+ */
#define HB_OT_TAG_GSUB HB_TAG('G','S','U','B')
+/**
+ * HB_OT_TAG_GPOS:
+ *
+ * OpenType [Glyph Positioning Table](https://docs.microsoft.com/en-us/typography/opentype/spec/gpos).
+ */
#define HB_OT_TAG_GPOS HB_TAG('G','P','O','S')
+/**
+ * HB_OT_TAG_JSTF:
+ *
+ * OpenType [Justification Table](https://docs.microsoft.com/en-us/typography/opentype/spec/jstf).
+ */
#define HB_OT_TAG_JSTF HB_TAG('J','S','T','F')
@@ -49,18 +74,34 @@ HB_BEGIN_DECLS
* Script & Language tags.
*/
+/**
+ * HB_OT_TAG_DEFAULT_SCRIPT:
+ *
+ * OpenType script tag, `DFLT`, for features that are not script-specific.
+ *
+ */
#define HB_OT_TAG_DEFAULT_SCRIPT HB_TAG ('D', 'F', 'L', 'T')
+/**
+ * HB_OT_TAG_DEFAULT_LANGUAGE:
+ *
+ * OpenType language tag, `dflt`. Not a valid language tag, but some fonts
+ * mistakenly use it.
+ */
#define HB_OT_TAG_DEFAULT_LANGUAGE HB_TAG ('d', 'f', 'l', 't')
/**
* HB_OT_MAX_TAGS_PER_SCRIPT:
*
+ * Maximum number of OpenType tags that can correspond to a give #hb_script_t.
+ *
* Since: 2.0.0
**/
#define HB_OT_MAX_TAGS_PER_SCRIPT 3u
/**
* HB_OT_MAX_TAGS_PER_LANGUAGE:
*
+ * Maximum number of OpenType tags that can correspond to a give #hb_language_t.
+ *
* Since: 2.0.0
**/
#define HB_OT_MAX_TAGS_PER_LANGUAGE 3u
@@ -144,9 +185,29 @@ hb_ot_layout_get_ligature_carets (hb_font_t *font,
* GSUB/GPOS feature query and enumeration interface
*/
+/**
+ * HB_OT_LAYOUT_NO_SCRIPT_INDEX:
+ *
+ * Special value for script index indicating unsupported script.
+ */
#define HB_OT_LAYOUT_NO_SCRIPT_INDEX 0xFFFFu
+/**
+ * HB_OT_LAYOUT_NO_FEATURE_INDEX:
+ *
+ * Special value for feature index indicating unsupported feature.
+ */
#define HB_OT_LAYOUT_NO_FEATURE_INDEX 0xFFFFu
+/**
+ * HB_OT_LAYOUT_DEFAULT_LANGUAGE_INDEX:
+ *
+ * Special value for language index indicating default or unsupported language.
+ */
#define HB_OT_LAYOUT_DEFAULT_LANGUAGE_INDEX 0xFFFFu
+/**
+ * HB_OT_LAYOUT_NO_VARIATIONS_INDEX:
+ *
+ * Special value for variations index indicating unsupported variation.
+ */
#define HB_OT_LAYOUT_NO_VARIATIONS_INDEX 0xFFFFFFFFu
HB_EXTERN unsigned int
@@ -433,7 +494,7 @@ hb_ot_layout_feature_get_characters (hb_face_t *face,
* @HB_OT_LAYOUT_BASELINE_TAG_MATH: The baseline about which mathematical characters are centered.
* In vertical writing mode when mathematical characters rotated 90 degrees clockwise, are centered.
*
- * Baseline tags from https://docs.microsoft.com/en-us/typography/opentype/spec/baselinetags
+ * Baseline tags from [Baseline Tags](https://docs.microsoft.com/en-us/typography/opentype/spec/baselinetags) registry.
*
* Since: 2.6.0
*/
@@ -446,6 +507,7 @@ typedef enum {
HB_OT_LAYOUT_BASELINE_TAG_IDEO_EMBOX_TOP_OR_RIGHT = HB_TAG ('i','d','t','p'),
HB_OT_LAYOUT_BASELINE_TAG_MATH = HB_TAG ('m','a','t','h'),
+ /*< private >*/
_HB_OT_LAYOUT_BASELINE_TAG_MAX_VALUE = HB_TAG_MAX_SIGNED /*< skip >*/
} hb_ot_layout_baseline_tag_t;