#define HB_OT_POST_TABLE_HH
#include "hb-open-type-private.hh"
+#include "hb-dsalgs.hh"
+#define HB_STRING_ARRAY_NAME format1_names
+#define HB_STRING_ARRAY_LIST "hb-ot-post-macroman.hh"
+#include "hb-string-array.hh"
+#undef HB_STRING_ARRAY_LIST
+#undef HB_STRING_ARRAY_NAME
+
+#define NUM_FORMAT1_NAMES 258
namespace OT {
inline bool sanitize (hb_sanitize_context_t *c) const
{
TRACE_SANITIZE (this);
- return_trace (numberOfGlyphs.sanitize (c) &&
- c->check_array (glyphNameIndex, sizeof (USHORT), numberOfGlyphs));
+ return_trace (glyphNameIndex.sanitize (c));
}
- USHORT numberOfGlyphs; /* Number of glyphs (this should be the
- * same as numGlyphs in 'maxp' table). */
- USHORT glyphNameIndex[VAR]; /* This is not an offset, but is the
+ ArrayOf<HBUINT16>glyphNameIndex; /* This is not an offset, but is the
* ordinal number of the glyph in 'post'
* string tables. */
- BYTE namesX[VAR]; /* Glyph names with length bytes [variable]
+ HBUINT8 namesX[VAR]; /* Glyph names with length bytes [variable]
* (a Pascal string). */
DEFINE_SIZE_ARRAY2 (2, glyphNameIndex, namesX);
return_trace (false);
if (version.to_int () == 0x00020000)
{
- const postV2Tail &v2 = StructAfter<postV2Tail>(*this);
+ const postV2Tail &v2 = StructAfter<postV2Tail> (*this);
return_trace (v2.sanitize (c));
}
return_trace (true);
}
+ struct accelerator_t
+ {
+ inline void init (hb_face_t *face)
+ {
+ blob = Sanitizer<post>().sanitize (face->reference_table (HB_OT_TAG_post));
+ const post *table = Sanitizer<post>::lock_instance (blob);
+ unsigned int table_length = hb_blob_get_length (blob);
+
+ version = table->version.to_int ();
+ index_to_offset.init ();
+ if (version != 0x00020000)
+ return;
+
+ const postV2Tail &v2 = StructAfter<postV2Tail> (*table);
+
+ glyphNameIndex = &v2.glyphNameIndex;
+ pool = &StructAfter<uint8_t> (v2.glyphNameIndex);
+
+ const uint8_t *end = (uint8_t *) table + table_length;
+ for (const uint8_t *data = pool; data < end && data + *data <= end; data += 1 + *data)
+ {
+ uint32_t *offset = index_to_offset.push ();
+ if (unlikely (!offset))
+ break;
+ *offset = data - pool;
+ }
+ }
+ inline void fini (void)
+ {
+ index_to_offset.finish ();
+ free (gids_sorted_by_name);
+ }
+
+ inline bool get_glyph_name (hb_codepoint_t glyph,
+ char *buf, unsigned int buf_len) const
+ {
+ hb_string_t s = find_glyph_name (glyph);
+ if (!s.len)
+ return false;
+ if (!buf_len)
+ return true;
+ if (buf_len <= s.len) /* What to do with truncation? Returning false for now. */
+ return false;
+ strncpy (buf, s.bytes, s.len);
+ buf[s.len] = '\0';
+ return true;
+ }
+
+ inline bool get_glyph_from_name (const char *name, int len,
+ hb_codepoint_t *glyph) const
+ {
+ unsigned int count = get_glyph_count ();
+ if (unlikely (!count))
+ return false;
+
+ if (len < 0)
+ len = strlen (name);
+
+ if (unlikely (!len))
+ return false;
+
+ retry:
+ uint16_t *gids = (uint16_t *) hb_atomic_ptr_get (&gids_sorted_by_name);
+
+ if (unlikely (!gids))
+ {
+ gids = (uint16_t *) malloc (count * sizeof (gids[0]));
+ if (unlikely (!gids))
+ return false; /* Anything better?! */
+
+ for (unsigned int i = 0; i < count; i++)
+ gids[i] = i;
+ hb_sort_r (gids, count, sizeof (gids[0]), cmp_gids, (void *) this);
+
+ if (!hb_atomic_ptr_cmpexch (&gids_sorted_by_name, nullptr, gids)) {
+ free (gids);
+ goto retry;
+ }
+ }
+
+ hb_string_t st (name, len);
+ const uint16_t *gid = (const uint16_t *) hb_bsearch_r (&st, gids, count, sizeof (gids[0]), cmp_key, (void *) this);
+ if (gid)
+ {
+ *glyph = *gid;
+ return true;
+ }
+
+ return false;
+ }
+
+ protected:
+
+ inline unsigned int get_glyph_count (void) const
+ {
+ if (version == 0x00010000)
+ return NUM_FORMAT1_NAMES;
+
+ if (version == 0x00020000)
+ return glyphNameIndex->len;
+
+ return 0;
+ }
+
+ static inline int cmp_gids (const void *pa, const void *pb, void *arg)
+ {
+ const accelerator_t *thiz = (const accelerator_t *) arg;
+ uint16_t a = * (const uint16_t *) pa;
+ uint16_t b = * (const uint16_t *) pb;
+ return thiz->find_glyph_name (b).cmp (thiz->find_glyph_name (a));
+ }
+
+ static inline int cmp_key (const void *pk, const void *po, void *arg)
+ {
+ const accelerator_t *thiz = (const accelerator_t *) arg;
+ const hb_string_t *key = (const hb_string_t *) pk;
+ uint16_t o = * (const uint16_t *) po;
+ return thiz->find_glyph_name (o).cmp (*key);
+ }
+
+ inline hb_string_t find_glyph_name (hb_codepoint_t glyph) const
+ {
+ if (version == 0x00010000)
+ {
+ if (glyph >= NUM_FORMAT1_NAMES)
+ return hb_string_t ();
+
+ return format1_names (glyph);
+ }
+
+ if (version != 0x00020000 || glyph >= glyphNameIndex->len)
+ return hb_string_t ();
+
+ unsigned int index = glyphNameIndex->array[glyph];
+ if (index < NUM_FORMAT1_NAMES)
+ return format1_names (index);
+ index -= NUM_FORMAT1_NAMES;
+
+ if (index >= index_to_offset.len)
+ return hb_string_t ();
+ unsigned int offset = index_to_offset.array[index];
+
+ const uint8_t *data = pool + offset;
+ unsigned int name_length = *data;
+ data++;
+
+ return hb_string_t ((const char *) data, name_length);
+ }
+
+ private:
+ hb_blob_t *blob;
+ uint32_t version;
+ const ArrayOf<HBUINT16> *glyphNameIndex;
+ hb_prealloced_array_t<uint32_t, 1> index_to_offset;
+ const uint8_t *pool;
+ mutable uint16_t *gids_sorted_by_name;
+ };
+
public:
FixedVersion<>version; /* 0x00010000 for version 1.0
* 0x00020000 for version 2.0
* from the value of this field. */
FWORD underlineThickness; /* Suggested values for the underline
thickness. */
- ULONG isFixedPitch; /* Set to 0 if the font is proportionally
+ HBUINT32 isFixedPitch; /* Set to 0 if the font is proportionally
* spaced, non-zero if the font is not
* proportionally spaced (i.e. monospaced). */
- ULONG minMemType42; /* Minimum memory usage when an OpenType font
+ HBUINT32 minMemType42; /* Minimum memory usage when an OpenType font
* is downloaded. */
- ULONG maxMemType42; /* Maximum memory usage when an OpenType font
+ HBUINT32 maxMemType42; /* Maximum memory usage when an OpenType font
* is downloaded. */
- ULONG minMemType1; /* Minimum memory usage when an OpenType font
+ HBUINT32 minMemType1; /* Minimum memory usage when an OpenType font
* is downloaded as a Type 1 font. */
- ULONG maxMemType1; /* Maximum memory usage when an OpenType font
+ HBUINT32 maxMemType1; /* Maximum memory usage when an OpenType font
* is downloaded as a Type 1 font. */
/*postV2Tail v2[VAR];*/
DEFINE_SIZE_STATIC (32);
projects / platform / upstream / harfbuzz.git / blobdiff