walkero
/
harfbuzz
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

[ot] Hook up cmap table to hb_ot_font_funcs()

This commit is contained in:
Behdad Esfahbod 2014-05-12 13:46:29 -04:00
parent c8a4745299
commit 3608a6847e
2 changed files with 26 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/hb-ot-cmap-table.hh
View File

@ -193,14 +193,18 @@ struct cmap
{
static const hb_tag_t tableTag = HB_OT_TAG_cmap;
inline unsigned int find_subtable (unsigned int platform_id,
unsigned int encoding_id) const
inline const CmapSubtable *find_subtable (unsigned int platform_id,
unsigned int encoding_id) const
{
EncodingRecord key;
key.platformID.set (platform_id);
key.encodingID.set (encoding_id);
return encodingRecord.search (key);
int result = encodingRecord.search (key);
if (result == -1)
return NULL;
return &(this+encodingRecord[result].subtable);
}
inline bool sanitize (hb_sanitize_context_t *c) {

33
src/hb-ot-font.cc
View File

@ -42,6 +42,9 @@ struct hb_ot_font_t
unsigned int num_hmetrics;
const OT::hmtx *hmtx;
hb_blob_t *hmtx_blob;
const OT::CmapSubtable *cmap;
hb_blob_t *cmap_blob;
};
@ -69,15 +72,25 @@ _hb_ot_font_create (hb_font_t *font)
free (ot_font);
return NULL;
}
ot_font->hmtx = OT::Sanitizer<OT::hmtx>::lock_instance (ot_font->hmtx_blob);
ot_font->cmap_blob = OT::Sanitizer<OT::cmap>::sanitize (font->face->reference_table (HB_OT_TAG_cmap));
const OT::cmap *cmap = OT::Sanitizer<OT::cmap>::lock_instance (ot_font->cmap_blob);
const OT::CmapSubtable *subtable = NULL;
if (!subtable) subtable = cmap->find_subtable (0, 3);
if (!subtable) subtable = cmap->find_subtable (3, 1);
if (!subtable) subtable = &OT::Null(OT::CmapSubtable);
ot_font->cmap = subtable;
return ot_font;
}
static void
_hb_ot_font_destroy (hb_ot_font_t *ot_font)
{
hb_blob_destroy (ot_font->cmap_blob);
hb_blob_destroy (ot_font->hmtx_blob);
free (ot_font);
@ -93,24 +106,16 @@ hb_ot_get_glyph (hb_font_t *font HB_UNUSED,
void *user_data HB_UNUSED)
{
#if 0
FT_Face ft_face = (FT_Face) font_data;
const hb_ot_font_t *ot_font = (const hb_ot_font_t *) font_data;
#ifdef HAVE_FT_FACE_GETCHARVARIANTINDEX
if (unlikely (variation_selector)) {
*glyph = FT_Face_GetCharVariantIndex (ft_face, unicode, variation_selector);
return *glyph != 0;
}
#endif
if (unlikely (variation_selector))
return false;
*glyph = FT_Get_Char_Index (ft_face, unicode);
return *glyph != 0;
#endif
return true;
return ot_font->cmap->get_glyph (unicode, glyph);
}
static hb_position_t
hb_ot_get_glyph_h_advance (hb_font_t *font,
hb_ot_get_glyph_h_advance (hb_font_t *font HB_UNUSED,
void *font_data,
hb_codepoint_t glyph,
void *user_data HB_UNUSED)