Fix name scanning
In 161c738 I switched from linear name scanning to binary searching.
That, however, ignored the fact that there might be more than one
name table entry for each pair we want to query.
To fix that and retain bsearch, I now get all name entries first,
sort them, and use for bsearching.
This fixes https://bugs.freedesktop.org/show_bug.cgi?id=105756
This makes scaning Voto Serif GX twice slower though, since we are
creating and sorting the list for each instance. In the next commit,
I'll share this list across different instances to fix this.
This commit is contained in:
Behdad Esfahbod
parent
31269e3589
commit
fa13f8835c
299
src/fcfreetype.c
299
src/fcfreetype.c
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@ -1136,30 +1136,65 @@ static const FT_UShort nameid_order[] = {
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#define NUM_NAMEID_ORDER (sizeof (nameid_order) / sizeof (nameid_order[0]))
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static FcBool
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FcFreeTypeGetName (const FT_Face face,
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unsigned int platform,
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unsigned int nameid,
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FT_SfntName *sname)
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typedef struct
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{
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int min = 0, max = (int) FT_Get_Sfnt_Name_Count (face) - 1;
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unsigned int platform_id;
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unsigned int name_id;
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unsigned int encoding_id;
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unsigned int language_id;
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unsigned int idx;
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} FcNameMapping;
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static int
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name_mapping_cmp (const void *pa, const void *pb)
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{
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const FcNameMapping *a = (const FcNameMapping *) pa;
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const FcNameMapping *b = (const FcNameMapping *) pb;
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if (a->platform_id != b->platform_id) return (int) a->platform_id - (int) b->platform_id;
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if (a->name_id != b->name_id) return (int) a->name_id - (int) b->name_id;
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if (a->encoding_id != b->encoding_id) return (int) a->encoding_id - (int) b->encoding_id;
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if (a->language_id != b->language_id) return (int) a->language_id - (int) b->language_id;
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if (a->idx != b->idx) return (int) a->idx - (int) b->idx;
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return 0;
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}
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static int
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FcFreeTypeGetFirstName (const FT_Face face,
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unsigned int platform,
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unsigned int nameid,
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FcNameMapping *mapping,
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unsigned int count,
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FT_SfntName *sname)
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{
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int min = 0, max = (int) count - 1;
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while (min <= max)
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{
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int mid = (min + max) / 2;
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if (FT_Get_Sfnt_Name (face, mid, sname) != 0)
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if (FT_Get_Sfnt_Name (face, mapping[mid].idx, sname) != 0)
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return FcFalse;
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if (platform < sname->platform_id || (platform == sname->platform_id && nameid < sname->name_id))
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if (platform < sname->platform_id ||
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(platform == sname->platform_id &&
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(nameid < sname->name_id ||
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(nameid == sname->name_id &&
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(mid &&
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platform == mapping[mid - 1].platform_id &&
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nameid == mapping[mid - 1].name_id
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)))))
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max = mid - 1;
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else if (platform > sname->platform_id || (platform == sname->platform_id && nameid > sname->name_id))
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else if (platform > sname->platform_id ||
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(platform == sname->platform_id &&
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nameid > sname->name_id))
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min = mid + 1;
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else
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return FcTrue;
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return mid;
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}
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return FcFalse;
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return -1;
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}
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static FcPattern *
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@ -1180,6 +1215,7 @@ FcFreeTypeQueryFaceInternal (const FT_Face face,
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FcBool variable_size = FcFalse;
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FcCharSet *cs;
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FcLangSet *ls;
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FcNameMapping *name_mapping = 0;
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#if 0
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FcChar8 *family = 0;
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#endif
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@ -1203,6 +1239,7 @@ FcFreeTypeQueryFaceInternal (const FT_Face face,
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TT_Header *head;
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const FcChar8 *exclusiveLang = 0;
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int name_count = 0;
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int nfamily = 0;
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int nfamily_lang = 0;
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int nstyle = 0;
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@ -1369,6 +1406,36 @@ FcFreeTypeQueryFaceInternal (const FT_Face face,
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* and style names. FreeType makes quite a hash
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* of them
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*/
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name_count = FT_Get_Sfnt_Name_Count (face);
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if (!name_mapping)
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{
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int i = 0;
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name_mapping = malloc (name_count * sizeof (FcNameMapping));
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if (!name_mapping)
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name_count = 0;
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for (i = 0; i < name_count; i++)
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{
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FcNameMapping *p = &name_mapping[i];
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FT_SfntName sname;
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if (FT_Get_Sfnt_Name (face, i, &sname) == 0)
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{
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p->platform_id = sname.platform_id;
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p->name_id = sname.name_id;
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p->encoding_id = sname.encoding_id;
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p->language_id = sname.language_id;
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p->idx = i;
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}
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else
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{
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p->platform_id =
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p->name_id =
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p->encoding_id =
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p->language_id =
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p->idx = (unsigned int) -1;
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}
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}
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qsort (name_mapping, name_count, sizeof(FcNameMapping), name_mapping_cmp);
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}
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for (p = 0; p < NUM_PLATFORM_ORDER; p++)
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{
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int platform = platform_order[p];
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@ -1380,6 +1447,7 @@ FcFreeTypeQueryFaceInternal (const FT_Face face,
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for (n = 0; n < NUM_NAMEID_ORDER; n++)
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{
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FT_SfntName sname;
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int nameidx;
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const FcChar8 *lang;
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const char *elt = 0, *eltlang = 0;
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int *np = 0, *nlangp = 0;
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@ -1401,119 +1469,128 @@ FcFreeTypeQueryFaceInternal (const FT_Face face,
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lookupid = instance->strid;
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}
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if (!FcFreeTypeGetName (face, platform, lookupid, &sname))
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nameidx = FcFreeTypeGetFirstName (face, platform, lookupid,
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name_mapping, name_count,
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&sname);
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if (nameidx == -1)
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continue;
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switch (nameid) {
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case TT_NAME_ID_WWS_FAMILY:
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case TT_NAME_ID_PREFERRED_FAMILY:
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case TT_NAME_ID_FONT_FAMILY:
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#if 0
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case TT_NAME_ID_UNIQUE_ID:
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#endif
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if (FcDebug () & FC_DBG_SCANV)
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printf ("found family (n %2d p %d e %d l 0x%04x)",
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sname.name_id, sname.platform_id,
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sname.encoding_id, sname.language_id);
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elt = FC_FAMILY;
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eltlang = FC_FAMILYLANG;
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np = &nfamily;
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nlangp = &nfamily_lang;
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break;
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case TT_NAME_ID_MAC_FULL_NAME:
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case TT_NAME_ID_FULL_NAME:
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if (FcDebug () & FC_DBG_SCANV)
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printf ("found full (n %2d p %d e %d l 0x%04x)",
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sname.name_id, sname.platform_id,
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sname.encoding_id, sname.language_id);
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elt = FC_FULLNAME;
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eltlang = FC_FULLNAMELANG;
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np = &nfullname;
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nlangp = &nfullname_lang;
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break;
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case TT_NAME_ID_WWS_SUBFAMILY:
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case TT_NAME_ID_PREFERRED_SUBFAMILY:
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case TT_NAME_ID_FONT_SUBFAMILY:
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if (variable)
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break;
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if (FcDebug () & FC_DBG_SCANV)
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printf ("found style (n %2d p %d e %d l 0x%04x) ",
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sname.name_id, sname.platform_id,
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sname.encoding_id, sname.language_id);
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elt = FC_STYLE;
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eltlang = FC_STYLELANG;
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np = &nstyle;
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nlangp = &nstyle_lang;
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break;
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case TT_NAME_ID_TRADEMARK:
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case TT_NAME_ID_MANUFACTURER:
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/* If the foundry wasn't found in the OS/2 table, look here */
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if(!foundry)
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{
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FcChar8 *utf8;
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utf8 = FcSfntNameTranscode (&sname);
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foundry = FcNoticeFoundry((FT_String *) utf8);
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free (utf8);
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}
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break;
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}
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if (elt)
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do
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{
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FcChar8 *utf8, *pp;
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switch (nameid) {
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case TT_NAME_ID_WWS_FAMILY:
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case TT_NAME_ID_PREFERRED_FAMILY:
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case TT_NAME_ID_FONT_FAMILY:
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#if 0
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case TT_NAME_ID_UNIQUE_ID:
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#endif
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if (FcDebug () & FC_DBG_SCANV)
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printf ("found family (n %2d p %d e %d l 0x%04x)",
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sname.name_id, sname.platform_id,
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sname.encoding_id, sname.language_id);
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utf8 = FcSfntNameTranscode (&sname);
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lang = FcSfntNameLanguage (&sname);
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elt = FC_FAMILY;
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eltlang = FC_FAMILYLANG;
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np = &nfamily;
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nlangp = &nfamily_lang;
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break;
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case TT_NAME_ID_MAC_FULL_NAME:
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case TT_NAME_ID_FULL_NAME:
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if (FcDebug () & FC_DBG_SCANV)
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printf ("found full (n %2d p %d e %d l 0x%04x)",
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sname.name_id, sname.platform_id,
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sname.encoding_id, sname.language_id);
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if (FcDebug () & FC_DBG_SCANV)
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printf ("%s\n", utf8);
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elt = FC_FULLNAME;
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eltlang = FC_FULLNAMELANG;
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np = &nfullname;
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nlangp = &nfullname_lang;
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break;
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case TT_NAME_ID_WWS_SUBFAMILY:
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case TT_NAME_ID_PREFERRED_SUBFAMILY:
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case TT_NAME_ID_FONT_SUBFAMILY:
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if (variable)
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break;
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if (FcDebug () & FC_DBG_SCANV)
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printf ("found style (n %2d p %d e %d l 0x%04x) ",
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sname.name_id, sname.platform_id,
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sname.encoding_id, sname.language_id);
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if (!utf8)
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continue;
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/* Trim surrounding whitespace. */
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pp = utf8;
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while (*pp == ' ')
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pp++;
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len = strlen ((const char *) pp);
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memmove (utf8, pp, len + 1);
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pp = utf8 + len;
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while (pp > utf8 && *(pp - 1) == ' ')
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pp--;
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*pp = 0;
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if (FcStringInPatternElement (pat, elt, utf8))
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{
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free (utf8);
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continue;
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}
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/* add new element */
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if (!FcPatternAddString (pat, elt, utf8))
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{
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free (utf8);
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goto bail1;
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}
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free (utf8);
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if (lang)
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{
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/* pad lang list with 'und' to line up with elt */
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while (*nlangp < *np)
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elt = FC_STYLE;
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eltlang = FC_STYLELANG;
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np = &nstyle;
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nlangp = &nstyle_lang;
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break;
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case TT_NAME_ID_TRADEMARK:
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case TT_NAME_ID_MANUFACTURER:
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/* If the foundry wasn't found in the OS/2 table, look here */
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if(!foundry)
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{
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if (!FcPatternAddString (pat, eltlang, (FcChar8 *) "und"))
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FcChar8 *utf8;
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utf8 = FcSfntNameTranscode (&sname);
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foundry = FcNoticeFoundry((FT_String *) utf8);
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free (utf8);
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}
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break;
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}
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if (elt)
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{
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FcChar8 *utf8, *pp;
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utf8 = FcSfntNameTranscode (&sname);
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lang = FcSfntNameLanguage (&sname);
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if (FcDebug () & FC_DBG_SCANV)
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printf ("%s\n", utf8);
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if (!utf8)
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continue;
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/* Trim surrounding whitespace. */
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pp = utf8;
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while (*pp == ' ')
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pp++;
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len = strlen ((const char *) pp);
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memmove (utf8, pp, len + 1);
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pp = utf8 + len;
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while (pp > utf8 && *(pp - 1) == ' ')
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pp--;
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*pp = 0;
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if (FcStringInPatternElement (pat, elt, utf8))
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{
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free (utf8);
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continue;
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}
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/* add new element */
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if (!FcPatternAddString (pat, elt, utf8))
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{
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free (utf8);
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goto bail1;
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}
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free (utf8);
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if (lang)
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{
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/* pad lang list with 'und' to line up with elt */
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while (*nlangp < *np)
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{
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if (!FcPatternAddString (pat, eltlang, (FcChar8 *) "und"))
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goto bail1;
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++*nlangp;
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}
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if (!FcPatternAddString (pat, eltlang, lang))
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goto bail1;
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++*nlangp;
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}
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if (!FcPatternAddString (pat, eltlang, lang))
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goto bail1;
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++*nlangp;
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++*np;
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}
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++*np;
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}
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while (++nameidx < name_count &&
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FT_Get_Sfnt_Name (face, name_mapping[nameidx].idx, &sname) == 0 &&
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platform == sname.platform_id && lookupid == sname.name_id);
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}
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}
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free (name_mapping);
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if (!nfamily && face->family_name &&
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FcStrCmpIgnoreBlanksAndCase ((FcChar8 *) face->family_name, (FcChar8 *) "") != 0)
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