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src/java.desktop/share/native/libfontmanager/harfbuzz/hb-ot-map.hh
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@@ -24,16 +24,19 @@
*
* Red Hat Author(s): Behdad Esfahbod
* Google Author(s): Behdad Esfahbod
*/
-#ifndef HB_OT_MAP_PRIVATE_HH
-#define HB_OT_MAP_PRIVATE_HH
+#ifndef HB_OT_MAP_HH
+#define HB_OT_MAP_HH
-#include "hb-buffer-private.hh"
+#include "hb-buffer.hh"
+#define HB_OT_MAP_MAX_BITS 8u
+#define HB_OT_MAP_MAX_VALUE ((1u << HB_OT_MAP_MAX_BITS) - 1u)
+
struct hb_ot_shape_plan_t;
static const hb_tag_t table_tags[2] = {HB_OT_TAG_GSUB, HB_OT_TAG_GPOS};
struct hb_ot_map_t
@@ -50,19 +53,21 @@
hb_mask_t mask;
hb_mask_t _1_mask; /* mask for value=1, for quick access */
unsigned int needs_fallback : 1;
unsigned int auto_zwnj : 1;
unsigned int auto_zwj : 1;
+ unsigned int random : 1;
- inline int cmp (const hb_tag_t *tag_) const
- { return *tag_ < tag ? -1 : *tag_ > tag ? 1 : 0; }
+ int cmp (const hb_tag_t tag_) const
+ { return tag_ < tag ? -1 : tag_ > tag ? 1 : 0; }
};
struct lookup_map_t {
unsigned short index;
unsigned short auto_zwnj : 1;
unsigned short auto_zwj : 1;
+ unsigned short random : 1;
hb_mask_t mask;
static int cmp (const void *pa, const void *pb)
{
const lookup_map_t *a = (const lookup_map_t *) pa;
@@ -76,69 +81,75 @@
struct stage_map_t {
unsigned int last_lookup; /* Cumulative */
pause_func_t pause_func;
};
- inline void init (void)
+ void init ()
{
memset (this, 0, sizeof (*this));
features.init ();
for (unsigned int table_index = 0; table_index < 2; table_index++)
{
lookups[table_index].init ();
stages[table_index].init ();
}
}
- inline void fini (void)
+ void fini ()
{
features.fini ();
for (unsigned int table_index = 0; table_index < 2; table_index++)
{
lookups[table_index].fini ();
stages[table_index].fini ();
}
}
- inline hb_mask_t get_global_mask (void) const { return global_mask; }
+ hb_mask_t get_global_mask () const { return global_mask; }
- inline hb_mask_t get_mask (hb_tag_t feature_tag, unsigned int *shift = nullptr) const {
+ hb_mask_t get_mask (hb_tag_t feature_tag, unsigned int *shift = nullptr) const
+ {
const feature_map_t *map = features.bsearch (feature_tag);
if (shift) *shift = map ? map->shift : 0;
return map ? map->mask : 0;
}
- inline bool needs_fallback (hb_tag_t feature_tag) const {
+ bool needs_fallback (hb_tag_t feature_tag) const
+ {
const feature_map_t *map = features.bsearch (feature_tag);
return map ? map->needs_fallback : false;
}
- inline hb_mask_t get_1_mask (hb_tag_t feature_tag) const {
+ hb_mask_t get_1_mask (hb_tag_t feature_tag) const
+ {
const feature_map_t *map = features.bsearch (feature_tag);
return map ? map->_1_mask : 0;
}
- inline unsigned int get_feature_index (unsigned int table_index, hb_tag_t feature_tag) const {
+ unsigned int get_feature_index (unsigned int table_index, hb_tag_t feature_tag) const
+ {
const feature_map_t *map = features.bsearch (feature_tag);
return map ? map->index[table_index] : HB_OT_LAYOUT_NO_FEATURE_INDEX;
}
- inline unsigned int get_feature_stage (unsigned int table_index, hb_tag_t feature_tag) const {
+ unsigned int get_feature_stage (unsigned int table_index, hb_tag_t feature_tag) const
+ {
const feature_map_t *map = features.bsearch (feature_tag);
return map ? map->stage[table_index] : (unsigned int) -1;
}
- inline void get_stage_lookups (unsigned int table_index, unsigned int stage,
- const struct lookup_map_t **plookups, unsigned int *lookup_count) const {
+ void get_stage_lookups (unsigned int table_index, unsigned int stage,
+ const struct lookup_map_t **plookups, unsigned int *lookup_count) const
+ {
if (unlikely (stage == (unsigned int) -1)) {
*plookups = nullptr;
*lookup_count = 0;
return;
}
- assert (stage <= stages[table_index].len);
+ assert (stage <= stages[table_index].length);
unsigned int start = stage ? stages[table_index][stage - 1].last_lookup : 0;
- unsigned int end = stage < stages[table_index].len ? stages[table_index][stage].last_lookup : lookups[table_index].len;
+ unsigned int end = stage < stages[table_index].length ? stages[table_index][stage].last_lookup : lookups[table_index].length;
*plookups = end == start ? nullptr : &lookups[table_index][start];
*lookup_count = end - start;
}
HB_INTERNAL void collect_lookups (unsigned int table_index, hb_set_t *lookups) const;
@@ -154,61 +165,81 @@
private:
hb_mask_t global_mask;
- hb_vector_t<feature_map_t, 8> features;
- hb_vector_t<lookup_map_t, 32> lookups[2]; /* GSUB/GPOS */
- hb_vector_t<stage_map_t, 4> stages[2]; /* GSUB/GPOS */
+ hb_vector_t<feature_map_t> features;
+ hb_vector_t<lookup_map_t> lookups[2]; /* GSUB/GPOS */
+ hb_vector_t<stage_map_t> stages[2]; /* GSUB/GPOS */
};
-enum hb_ot_map_feature_flags_t {
+enum hb_ot_map_feature_flags_t
+{
F_NONE = 0x0000u,
F_GLOBAL = 0x0001u, /* Feature applies to all characters; results in no mask allocated for it. */
F_HAS_FALLBACK = 0x0002u, /* Has fallback implementation, so include mask bit even if feature not found. */
F_MANUAL_ZWNJ = 0x0004u, /* Don't skip over ZWNJ when matching **context**. */
F_MANUAL_ZWJ = 0x0008u, /* Don't skip over ZWJ when matching **input**. */
- F_GLOBAL_SEARCH = 0x0010u /* If feature not found in LangSys, look for it in global feature list and pick one. */
+ F_MANUAL_JOINERS = F_MANUAL_ZWNJ | F_MANUAL_ZWJ,
+ F_GLOBAL_MANUAL_JOINERS= F_GLOBAL | F_MANUAL_JOINERS,
+ F_GLOBAL_HAS_FALLBACK = F_GLOBAL | F_HAS_FALLBACK,
+ F_GLOBAL_SEARCH = 0x0010u, /* If feature not found in LangSys, look for it in global feature list and pick one. */
+ F_RANDOM = 0x0020u /* Randomly select a glyph from an AlternateSubstFormat1 subtable. */
};
HB_MARK_AS_FLAG_T (hb_ot_map_feature_flags_t);
-/* Macro version for where const is desired. */
-#define F_COMBINE(l,r) (hb_ot_map_feature_flags_t ((unsigned int) (l) | (unsigned int) (r)))
+struct hb_ot_map_feature_t
+{
+ hb_tag_t tag;
+ hb_ot_map_feature_flags_t flags;
+};
+
+struct hb_ot_shape_plan_key_t;
+
struct hb_ot_map_builder_t
{
public:
HB_INTERNAL hb_ot_map_builder_t (hb_face_t *face_,
const hb_segment_properties_t *props_);
- HB_INTERNAL ~hb_ot_map_builder_t (void);
+ HB_INTERNAL ~hb_ot_map_builder_t ();
+
+ HB_INTERNAL void add_feature (hb_tag_t tag,
+ hb_ot_map_feature_flags_t flags=F_NONE,
+ unsigned int value=1);
+
+ void add_feature (const hb_ot_map_feature_t &feat)
+ { add_feature (feat.tag, feat.flags); }
- HB_INTERNAL void add_feature (hb_tag_t tag, unsigned int value,
- hb_ot_map_feature_flags_t flags);
+ void enable_feature (hb_tag_t tag,
+ hb_ot_map_feature_flags_t flags=F_NONE,
+ unsigned int value=1)
+ { add_feature (tag, F_GLOBAL | flags, value); }
- inline void add_global_bool_feature (hb_tag_t tag)
- { add_feature (tag, 1, F_GLOBAL); }
+ void disable_feature (hb_tag_t tag)
+ { add_feature (tag, F_GLOBAL, 0); }
- inline void add_gsub_pause (hb_ot_map_t::pause_func_t pause_func)
+ void add_gsub_pause (hb_ot_map_t::pause_func_t pause_func)
{ add_pause (0, pause_func); }
- inline void add_gpos_pause (hb_ot_map_t::pause_func_t pause_func)
+ void add_gpos_pause (hb_ot_map_t::pause_func_t pause_func)
{ add_pause (1, pause_func); }
HB_INTERNAL void compile (hb_ot_map_t &m,
- const int *coords,
- unsigned int num_coords);
+ const hb_ot_shape_plan_key_t &key);
private:
HB_INTERNAL void add_lookups (hb_ot_map_t &m,
unsigned int table_index,
unsigned int feature_index,
unsigned int variations_index,
hb_mask_t mask,
bool auto_zwnj = true,
- bool auto_zwj = true);
+ bool auto_zwj = true,
+ bool random = false);
struct feature_info_t {
hb_tag_t tag;
unsigned int seq; /* sequence#, used for stable sorting only */
unsigned int max_value;
@@ -242,12 +273,12 @@
unsigned int script_index[2], language_index[2];
private:
unsigned int current_stage[2]; /* GSUB/GPOS */
- hb_vector_t<feature_info_t, 32> feature_infos;
- hb_vector_t<stage_info_t, 8> stages[2]; /* GSUB/GPOS */
+ hb_vector_t<feature_info_t> feature_infos;
+ hb_vector_t<stage_info_t> stages[2]; /* GSUB/GPOS */
};
-#endif /* HB_OT_MAP_PRIVATE_HH */
+#endif /* HB_OT_MAP_HH */
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