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otf: obtain font name from otf name table

--- a/otf.c

+++ b/otf.c

@@ -80,6 +80,29 @@

 	return NULL;

 }

+/* obtain postscript font name from name table */

+static void otf_name(void *otf, void *tab)

+{

+	char name[256];

+	void *str = tab + U16(tab, 4);		/* storage area */

+	int n = U16(tab, 2);			/* number of name records */

+	int i;

+	for (i = 0; i < n; i++) {

+		void *rec = tab + 6 + 12 * i;

+		int pid = U16(rec, 0);		/* platform id */

+		int eid = U16(rec, 2);		/* encoding id */

+		int lid = U16(rec, 4);		/* language id */

+		int nid = U16(rec, 6);		/* name id */

+		int len = U16(rec, 8);		/* string length */

+		int off = U16(rec, 10);		/* string offset  */

+		if (pid == 1 && eid == 0 && lid == 0 && nid == 6) {

+			memcpy(name, str + off, len);

+			name[len] = '\0';

+			trfn_psfont(name);

+		}

+	}

+}

+

 /* parse otf cmap format 4 subtable */

 static void otf_cmap4(void *otf, void *cmap4)

 {

@@ -817,6 +840,7 @@

 	if (xread(0, buf, sizeof(buf)) <= 0)

 		return 1;

 	upm = U16(otf_table(buf, "head"), 18);

+	otf_name(buf, otf_table(buf, "name"));

 	otf_cmap(buf, otf_table(buf, "cmap"));

 	otf_post(buf, otf_table(buf, "post"));

 	if (otf_table(buf, "glyf"))