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[varfonts] Share lang across named-instances 

Makes VotoSerifGX scanning another 40% faster...  Down to 36ms now.
This commit is contained in:
Behdad Esfahbod 2017-09-27 18:55:50 -04:00
parent 161c738547
commit 01f781a9a4
3 changed files with 34 additions and 10 deletions
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35
src/fcfreetype.c
View File

@ -1189,7 +1189,8 @@ static FcPattern *
FcFreeTypeQueryFaceInternal (const FT_Face face,
const FcChar8 *file,
unsigned int id,
FcCharSet *cs)
FcCharSet **cs_share,
FcLangSet **ls_share)
{
FcPattern *pat;
int slant = -1;
@ -1200,7 +1201,8 @@ FcFreeTypeQueryFaceInternal (const FT_Face face,
FcBool variable_weight = FcFalse;
FcBool variable_width = FcFalse;
FcBool variable_size = FcFalse;
FcLangSet *ls;
FcCharSet *cs;
FcLangSet *ls;
#if 0
FcChar8 *family = 0;
#endif
@ -1938,10 +1940,14 @@ FcFreeTypeQueryFaceInternal (const FT_Face face,
/*
* Compute the unicode coverage for the font
*/
if (cs)
cs = FcCharSetCopy (cs);
if (cs_share && *cs_share)
cs = FcCharSetCopy (*cs_share);
else
{
cs = FcFreeTypeCharSet (face, NULL);
if (cs_share)
*cs_share = FcCharSetCopy (cs);
}
if (!cs)
goto bail1;
@ -1985,7 +1991,14 @@ FcFreeTypeQueryFaceInternal (const FT_Face face,
if (!symbol)
{
ls = FcFreeTypeLangSet (cs, exclusiveLang);
if (ls_share && *ls_share)
ls = FcLangSetCopy (*ls_share);
else
{
ls = FcFreeTypeLangSet (cs, exclusiveLang);
if (ls_share)
*ls_share = FcLangSetCopy (ls);
}
if (!ls)
goto bail2;
}
@ -2061,7 +2074,7 @@ FcFreeTypeQueryFace (const FT_Face face,
unsigned int id,
FcBlanks *blanks FC_UNUSED)
{
return FcFreeTypeQueryFaceInternal (face, file, id, NULL);
return FcFreeTypeQueryFaceInternal (face, file, id, NULL, NULL);
}
FcPattern *
@ -2083,7 +2096,7 @@ FcFreeTypeQuery(const FcChar8 *file,
if (count)
*count = face->num_faces;
pat = FcFreeTypeQueryFaceInternal (face, file, id, NULL);
pat = FcFreeTypeQueryFaceInternal (face, file, id, NULL, NULL);
FT_Done_Face (face);
bail:
@ -2101,6 +2114,7 @@ FcFreeTypeQueryAll(const FcChar8 *file,
FT_Face face = NULL;
FT_Library ftLibrary = NULL;
FcCharSet *cs = NULL;
FcLangSet *ls = NULL;
FT_MM_Var *mm_var = NULL;
FcBool index_set = id != (unsigned int) -1;
unsigned int set_face_num = index_set ? id & 0xFFFF : 0;
@ -2120,7 +2134,6 @@ FcFreeTypeQueryAll(const FcChar8 *file,
if (FT_New_Face (ftLibrary, (const char *) file, face_num, &face))
goto bail;
cs = FcFreeTypeCharSet (face, blanks);
num_faces = face->num_faces;
num_instances = face->style_flags >> 16;
@ -2160,7 +2173,7 @@ FcFreeTypeQueryAll(const FcChar8 *file,
}
id = ((instance_num << 16) + face_num);
pat = FcFreeTypeQueryFaceInternal (face, (const FcChar8 *) file, id, cs);
pat = FcFreeTypeQueryFaceInternal (face, (const FcChar8 *) file, id, &cs, &ls);
if (pat)
{
@ -2179,6 +2192,8 @@ skip:
instance_num = 0x8000; /* variable font */
else
{
FcLangSetDestroy (ls);
ls = NULL;
FcCharSetDestroy (cs);
cs = NULL;
FT_Done_Face (face);
@ -2189,11 +2204,11 @@ skip:
if (FT_New_Face (ftLibrary, (const char *) file, face_num, &face))
break;
cs = FcFreeTypeCharSet (face, blanks);
}
} while (!err && (!index_set || face_num == set_face_num) && face_num < num_faces);
bail:
FcLangSetDestroy (ls);
FcCharSetDestroy (cs);
if (face)
FT_Done_Face (face);

6
src/fclang.c
View File

@ -485,6 +485,9 @@ FcLangSetCreate (void)
void
FcLangSetDestroy (FcLangSet *ls)
{
if (!ls)
return;
if (ls->extra)
FcStrSetDestroy (ls->extra);
free (ls);
@ -495,6 +498,9 @@ FcLangSetCopy (const FcLangSet *ls)
{
FcLangSet *new;
if (!ls)
return NULL;
new = FcLangSetCreate ();
if (!new)
goto bail0;

3
src/fcpat.c
View File

@ -1113,6 +1113,9 @@ FcPatternDuplicate (const FcPattern *orig)
int i;
FcValueListPtr l;
if (!orig)
return NULL;
new = FcPatternCreate ();
if (!new)
goto bail0;