(OTF_get_variation_glyphs): New function.

diff --git a/src/otfdrive.c b/src/otfdrive.c
index 90be525..0f7633e 100644 (file)
--- a/src/otfdrive.c
+++ b/src/otfdrive.c
@@ -1509,6 +1509,35 @@ OTF_get_unicode (OTF *otf, OTF_GlyphID code)
 }
 
 int
+OTF_get_variation_glyphs (OTF *otf, int c, OTF_GlyphID code[256])
+{
+  int i, n;
+  OTF_cmap *cmap;
+  OTF_EncodingSubtable14 *sub14;
+
+  memset (code, 0, sizeof (OTF_GlyphID) * 256);
+  if (! otf->cmap
+      && OTF_get_table (otf, "cmap") < 0)
+    return 0;
+  cmap = otf->cmap;
+  for (i = 0; i < cmap->numTables; i++)
+    if (cmap->EncodingRecord[i].subtable.format == 14)
+      break;
+  if (i == cmap->numTables)
+    return 0;
+  sub14 = cmap->EncodingRecord[i].subtable.f.f14;
+  for (i = 0, n = 0; i < 256; i++)
+    {
+      int uvs = (i < 16 ? 0xFE00 + i : 0xE0100 + (i - 16));
+
+      if ((code[i] = get_uvs_glyph (cmap, sub14, c, uvs)))
+       n++;
+    }
+  return n;
+}
+
+
+int
 OTF_drive_gdef (OTF *otf, OTF_GlyphString *gstring)
 {
   OTF_GDEF *gdef;