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src/java.desktop/share/native/libfontmanager/harfbuzz/hb-ot-shape-complex-private.hh
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@@ -37,10 +37,12 @@
/* buffer var allocations, used by complex shapers */
#define complex_var_u8_0() var2.u8[2]
#define complex_var_u8_1() var2.u8[3]
+#define HB_OT_SHAPE_COMPLEX_MAX_COMBINING_MARKS 32
+
enum hb_ot_shape_zero_width_marks_type_t {
HB_OT_SHAPE_ZERO_WIDTH_MARKS_NONE,
HB_OT_SHAPE_ZERO_WIDTH_MARKS_BY_GDEF_EARLY,
HB_OT_SHAPE_ZERO_WIDTH_MARKS_BY_GDEF_LATE
};
@@ -61,101 +63,109 @@
/* ^--- Add new shapers here */
struct hb_ot_complex_shaper_t
{
- char name[8];
-
/* collect_features()
* Called during shape_plan().
* Shapers should use plan->map to add their features and callbacks.
- * May be NULL.
+ * May be nullptr.
*/
void (*collect_features) (hb_ot_shape_planner_t *plan);
/* override_features()
* Called during shape_plan().
* Shapers should use plan->map to override features and add callbacks after
* common features are added.
- * May be NULL.
+ * May be nullptr.
*/
void (*override_features) (hb_ot_shape_planner_t *plan);
/* data_create()
* Called at the end of shape_plan().
* Whatever shapers return will be accessible through plan->data later.
- * If NULL is returned, means a plan failure.
+ * If nullptr is returned, means a plan failure.
*/
void *(*data_create) (const hb_ot_shape_plan_t *plan);
/* data_destroy()
* Called when the shape_plan is being destroyed.
* plan->data is passed here for destruction.
- * If NULL is returned, means a plan failure.
- * May be NULL.
+ * If nullptr is returned, means a plan failure.
+ * May be nullptr.
*/
void (*data_destroy) (void *data);
/* preprocess_text()
* Called during shape().
* Shapers can use to modify text before shaping starts.
- * May be NULL.
+ * May be nullptr.
*/
void (*preprocess_text) (const hb_ot_shape_plan_t *plan,
hb_buffer_t *buffer,
hb_font_t *font);
/* postprocess_glyphs()
* Called during shape().
* Shapers can use to modify glyphs after shaping ends.
- * May be NULL.
+ * May be nullptr.
*/
void (*postprocess_glyphs) (const hb_ot_shape_plan_t *plan,
hb_buffer_t *buffer,
hb_font_t *font);
hb_ot_shape_normalization_mode_t normalization_preference;
/* decompose()
* Called during shape()'s normalization.
- * May be NULL.
+ * May be nullptr.
*/
bool (*decompose) (const hb_ot_shape_normalize_context_t *c,
hb_codepoint_t ab,
hb_codepoint_t *a,
hb_codepoint_t *b);
/* compose()
* Called during shape()'s normalization.
- * May be NULL.
+ * May be nullptr.
*/
bool (*compose) (const hb_ot_shape_normalize_context_t *c,
hb_codepoint_t a,
hb_codepoint_t b,
hb_codepoint_t *ab);
/* setup_masks()
* Called during shape().
* Shapers should use map to get feature masks and set on buffer.
* Shapers may NOT modify characters.
- * May be NULL.
+ * May be nullptr.
*/
void (*setup_masks) (const hb_ot_shape_plan_t *plan,
hb_buffer_t *buffer,
hb_font_t *font);
/* disable_otl()
* Called during shape().
* If set and returns true, GDEF/GSUB/GPOS of the font are ignored
* and fallback operations used.
- * May be NULL.
+ * May be nullptr.
*/
bool (*disable_otl) (const hb_ot_shape_plan_t *plan);
+ /* reorder_marks()
+ * Called during shape().
+ * Shapers can use to modify ordering of combining marks.
+ * May be nullptr.
+ */
+ void (*reorder_marks) (const hb_ot_shape_plan_t *plan,
+ hb_buffer_t *buffer,
+ unsigned int start,
+ unsigned int end);
+
hb_ot_shape_zero_width_marks_type_t zero_width_marks;
bool fallback_position;
};
@@ -189,10 +199,13 @@
/* Unicode-7.0 additions */
case HB_SCRIPT_MANICHAEAN:
case HB_SCRIPT_PSALTER_PAHLAVI:
+ /* Unicode-9.0 additions */
+ case HB_SCRIPT_ADLAM:
+
/* For Arabic script, use the Arabic shaper even if no OT script tag was found.
* This is because we do fallback shaping for Arabic script (and not others).
* But note that Arabic shaping is applicable only to horizontal layout; for
* vertical text, just use the generic shaper instead. */
if ((planner->map.chosen_script[0] != HB_OT_TAG_DEFAULT_SCRIPT ||
@@ -248,14 +261,16 @@
/* Unicode-3.0 additions */
case HB_SCRIPT_SINHALA:
/* If the designer designed the font for the 'DFLT' script,
- * use the default shaper. Otherwise, use the specific shaper.
+ * (or we ended up arbitrarily pick 'latn'), use the default shaper.
+ * Otherwise, use the specific shaper.
* Note that for some simple scripts, there may not be *any*
* GSUB/GPOS needed, so there may be no scripts found! */
- if (planner->map.chosen_script[0] == HB_TAG ('D','F','L','T'))
+ if (planner->map.chosen_script[0] == HB_TAG ('D','F','L','T') ||
+ planner->map.chosen_script[0] == HB_TAG ('l','a','t','n'))
return &_hb_ot_complex_shaper_default;
else
return &_hb_ot_complex_shaper_indic;
case HB_SCRIPT_KHMER:
@@ -267,11 +282,11 @@
if (planner->map.found_script[0] &&
hb_ot_layout_language_find_feature (planner->face, HB_OT_TAG_GSUB,
planner->map.script_index[0],
planner->map.language_index[0],
HB_TAG ('p','r','e','f'),
- NULL))
+ nullptr))
return &_hb_ot_complex_shaper_indic;
else
return &_hb_ot_complex_shaper_default;
case HB_SCRIPT_MYANMAR:
@@ -357,15 +372,22 @@
/* Unicode-9.0 additions */
case HB_SCRIPT_BHAIKSUKI:
case HB_SCRIPT_MARCHEN:
case HB_SCRIPT_NEWA:
+ /* Unicode-10.0 additions */
+ case HB_SCRIPT_MASARAM_GONDI:
+ case HB_SCRIPT_SOYOMBO:
+ case HB_SCRIPT_ZANABAZAR_SQUARE:
+
/* If the designer designed the font for the 'DFLT' script,
- * use the default shaper. Otherwise, use the specific shaper.
+ * (or we ended up arbitrarily pick 'latn'), use the default shaper.
+ * Otherwise, use the specific shaper.
* Note that for some simple scripts, there may not be *any*
* GSUB/GPOS needed, so there may be no scripts found! */
- if (planner->map.chosen_script[0] == HB_TAG ('D','F','L','T'))
+ if (planner->map.chosen_script[0] == HB_TAG ('D','F','L','T') ||
+ planner->map.chosen_script[0] == HB_TAG ('l','a','t','n'))
return &_hb_ot_complex_shaper_default;
else
return &_hb_ot_complex_shaper_use;
}
}
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