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-rw-r--r--gfx/harfbuzz/src/hb-ot-cmap-table.hh111
1 files changed, 83 insertions, 28 deletions
diff --git a/gfx/harfbuzz/src/hb-ot-cmap-table.hh b/gfx/harfbuzz/src/hb-ot-cmap-table.hh
index e2e2581855..64d2b13880 100644
--- a/gfx/harfbuzz/src/hb-ot-cmap-table.hh
+++ b/gfx/harfbuzz/src/hb-ot-cmap-table.hh
@@ -41,6 +41,30 @@
namespace OT {
+static inline uint8_t unicode_to_macroman (hb_codepoint_t u)
+{
+ uint16_t mapping[] = {
+ 0x00C4, 0x00C5, 0x00C7, 0x00C9, 0x00D1, 0x00D6, 0x00DC, 0x00E1,
+ 0x00E0, 0x00E2, 0x00E4, 0x00E3, 0x00E5, 0x00E7, 0x00E9, 0x00E8,
+ 0x00EA, 0x00EB, 0x00ED, 0x00EC, 0x00EE, 0x00EF, 0x00F1, 0x00F3,
+ 0x00F2, 0x00F4, 0x00F6, 0x00F5, 0x00FA, 0x00F9, 0x00FB, 0x00FC,
+ 0x2020, 0x00B0, 0x00A2, 0x00A3, 0x00A7, 0x2022, 0x00B6, 0x00DF,
+ 0x00AE, 0x00A9, 0x2122, 0x00B4, 0x00A8, 0x2260, 0x00C6, 0x00D8,
+ 0x221E, 0x00B1, 0x2264, 0x2265, 0x00A5, 0x00B5, 0x2202, 0x2211,
+ 0x220F, 0x03C0, 0x222B, 0x00AA, 0x00BA, 0x03A9, 0x00E6, 0x00F8,
+ 0x00BF, 0x00A1, 0x00AC, 0x221A, 0x0192, 0x2248, 0x2206, 0x00AB,
+ 0x00BB, 0x2026, 0x00A0, 0x00C0, 0x00C3, 0x00D5, 0x0152, 0x0153,
+ 0x2013, 0x2014, 0x201C, 0x201D, 0x2018, 0x2019, 0x00F7, 0x25CA,
+ 0x00FF, 0x0178, 0x2044, 0x20AC, 0x2039, 0x203A, 0xFB01, 0xFB02,
+ 0x2021, 0x00B7, 0x201A, 0x201E, 0x2030, 0x00C2, 0x00CA, 0x00C1,
+ 0x00CB, 0x00C8, 0x00CD, 0x00CE, 0x00CF, 0x00CC, 0x00D3, 0x00D4,
+ 0xF8FF, 0x00D2, 0x00DA, 0x00DB, 0x00D9, 0x0131, 0x02C6, 0x02DC,
+ 0x00AF, 0x02D8, 0x02D9, 0x02DA, 0x00B8, 0x02DD, 0x02DB, 0x02C7
+ };
+ uint16_t *c = hb_bsearch (u, mapping, ARRAY_LENGTH (mapping), sizeof (mapping[0]),
+ _hb_cmp_operator<uint16_t, uint16_t>);
+ return c ? (c - mapping) + 0x7F : 0;
+}
struct CmapSubtableFormat0
{
@@ -1465,8 +1489,11 @@ struct EncodingRecord
int ret;
ret = platformID.cmp (other.platformID);
if (ret) return ret;
- ret = encodingID.cmp (other.encodingID);
- if (ret) return ret;
+ if (other.encodingID != 0xFFFF)
+ {
+ ret = encodingID.cmp (other.encodingID);
+ if (ret) return ret;
+ }
return 0;
}
@@ -1814,9 +1841,13 @@ struct cmap
c->plan));
}
- const CmapSubtable *find_best_subtable (bool *symbol = nullptr) const
+ const CmapSubtable *find_best_subtable (bool *symbol = nullptr,
+ bool *mac = nullptr,
+ bool *macroman = nullptr) const
{
if (symbol) *symbol = false;
+ if (mac) *mac = false;
+ if (macroman) *macroman = false;
const CmapSubtable *subtable;
@@ -1841,6 +1872,20 @@ struct cmap
if ((subtable = this->find_subtable (0, 1))) return subtable;
if ((subtable = this->find_subtable (0, 0))) return subtable;
+ /* MacRoman subtable. */
+ if ((subtable = this->find_subtable (1, 0)))
+ {
+ if (mac) *mac = true;
+ if (macroman) *macroman = true;
+ return subtable;
+ }
+ /* Any other Mac subtable; we just map ASCII for these. */
+ if ((subtable = this->find_subtable (1, 0xFFFF)))
+ {
+ if (mac) *mac = true;
+ return subtable;
+ }
+
/* Meh. */
return &Null (CmapSubtable);
}
@@ -1852,8 +1897,8 @@ struct cmap
accelerator_t (hb_face_t *face)
{
this->table = hb_sanitize_context_t ().reference_table<cmap> (face);
- bool symbol;
- this->subtable = table->find_best_subtable (&symbol);
+ bool symbol, mac, macroman;
+ this->subtable = table->find_best_subtable (&symbol, &mac, &macroman);
this->subtable_uvs = &Null (CmapSubtableFormat14);
{
const CmapSubtable *st = table->find_subtable (0, 5);
@@ -1862,6 +1907,7 @@ struct cmap
}
this->get_glyph_data = subtable;
+#ifndef HB_NO_CMAP_LEGACY_SUBTABLES
if (unlikely (symbol))
{
switch ((unsigned) face->table.OS2->get_font_page ()) {
@@ -1881,7 +1927,16 @@ struct cmap
break;
}
}
+ else if (unlikely (macroman))
+ {
+ this->get_glyph_funcZ = get_glyph_from_macroman<CmapSubtable>;
+ }
+ else if (unlikely (mac))
+ {
+ this->get_glyph_funcZ = get_glyph_from_ascii<CmapSubtable>;
+ }
else
+#endif
{
switch (subtable->u.format) {
/* Accelerate format 4 and format 12. */
@@ -1924,7 +1979,7 @@ struct cmap
hb_codepoint_t *glyph,
cache_t *cache = nullptr) const
{
- if (unlikely (!this->get_glyph_funcZ)) return 0;
+ if (unlikely (!this->get_glyph_funcZ)) return false;
return _cached_get (unicode, glyph, cache);
}
@@ -2006,6 +2061,28 @@ struct cmap
return false;
}
+ template <typename Type>
+ HB_INTERNAL static bool get_glyph_from_ascii (const void *obj,
+ hb_codepoint_t codepoint,
+ hb_codepoint_t *glyph)
+ {
+ const Type *typed_obj = (const Type *) obj;
+ return codepoint < 0x80 && typed_obj->get_glyph (codepoint, glyph);
+ }
+
+ template <typename Type>
+ HB_INTERNAL static bool get_glyph_from_macroman (const void *obj,
+ hb_codepoint_t codepoint,
+ hb_codepoint_t *glyph)
+ {
+ if (get_glyph_from_ascii<Type> (obj, codepoint, glyph))
+ return true;
+
+ const Type *typed_obj = (const Type *) obj;
+ unsigned c = unicode_to_macroman (codepoint);
+ return c && typed_obj->get_glyph (c, glyph);
+ }
+
private:
hb_nonnull_ptr_t<const CmapSubtable> subtable;
hb_nonnull_ptr_t<const CmapSubtableFormat14> subtable_uvs;
@@ -2035,28 +2112,6 @@ struct cmap
return &(this+result.subtable);
}
- const EncodingRecord *find_encodingrec (unsigned int platform_id,
- unsigned int encoding_id) const
- {
- EncodingRecord key;
- key.platformID = platform_id;
- key.encodingID = encoding_id;
-
- return encodingRecord.as_array ().bsearch (key);
- }
-
- bool find_subtable (unsigned format) const
- {
- auto it =
- + hb_iter (encodingRecord)
- | hb_map (&EncodingRecord::subtable)
- | hb_map (hb_add (this))
- | hb_filter ([&] (const CmapSubtable& _) { return _.u.format == format; })
- ;
-
- return it.len ();
- }
-
public:
bool sanitize (hb_sanitize_context_t *c) const