Remove extra family names from the search pattern after FcFontSort and

call FcFontRenderPrepare to select the best family name for the font in case
there are several of them.

This does not affect font matching results, but helps to avoid warning about
inexact match.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@26690 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 18 insertions, 6 deletions

diff --git a/libass/ass_fontconfig.c b/libass/ass_fontconfig.c
index b98b675..2ae22da 100644
--- a/libass/ass_fontconfig.c
+++ b/libass/ass_fontconfig.c
@@ -73,6 +73,7 @@ static char* _select_font(fc_instance_t* priv, const char* family, unsigned bold
 	FcFontSet* fset = 0;
 	int curf;
 	char* retval = 0;
+	int family_cnt;
 	
 	*index = 0;
 
@@ -93,11 +94,13 @@ static char* _select_font(fc_instance_t* priv, const char* family, unsigned bold
 	// precedence in matching.
 	// An alternative approach could be to reimplement FcFontSort
 	// using FC_FULLNAME instead of FC_FAMILY.
+	family_cnt = 1;
 	if (strchr(family, ' ')) {
 		char *p, *s = strdup(family);
 		while (p = strrchr(s, ' ')) {
 			*p = '\0';
 			FcPatternAddString(pat, FC_FAMILY, (const FcChar8*)s);
+			++ family_cnt;
 		}
 		free(s);
 	}
@@ -114,16 +117,16 @@ static char* _select_font(fc_instance_t* priv, const char* family, unsigned bold
 	fset = FcFontSort(priv->config, pat, FcTrue, NULL, &result);
 
 	for (curf = 0; curf < fset->nfont; ++curf) {
-		rpat = fset->fonts[curf];
-		
-		result = FcPatternGetBool(rpat, FC_OUTLINE, 0, &r_outline);
+		FcPattern* curp = fset->fonts[curf];
+
+		result = FcPatternGetBool(curp, FC_OUTLINE, 0, &r_outline);
 		if (result != FcResultMatch)
 			continue;
 		if (r_outline != FcTrue)
 			continue;
 		if (!code)
 			break;
-		result = FcPatternGetCharSet(rpat, FC_CHARSET, 0, &r_charset);
+		result = FcPatternGetCharSet(curp, FC_CHARSET, 0, &r_charset);
 		if (result != FcResultMatch)
 			continue;
 		if (FcCharSetHasChar(r_charset, code))
@@ -133,8 +136,16 @@ static char* _select_font(fc_instance_t* priv, const char* family, unsigned bold
 	if (curf >= fset->nfont)
 		goto error;
 
-	rpat = fset->fonts[curf];
-	
+	// Remove all extra family names from original pattern.
+	// After this, FcFontRenderPrepare will select the most relevant family
+	// name in case there are more than one of them.
+	for (; family_cnt > 1; --family_cnt)
+		FcPatternRemove(pat, FC_FAMILY, family_cnt - 1);
+
+	rpat = FcFontRenderPrepare(priv->config, pat, fset->fonts[curf]);
+	if (!rpat)
+		goto error;
+
 	result = FcPatternGetInteger(rpat, FC_INDEX, 0, &r_index);
 	if (result != FcResultMatch)
 		goto error;
@@ -181,6 +192,7 @@ static char* _select_font(fc_instance_t* priv, const char* family, unsigned bold
 
  error:
 	if (pat) FcPatternDestroy(pat);
+	if (rpat) FcPatternDestroy(rpat);
 	if (fset) FcFontSetDestroy(fset);
 	return retval;
 }