From e1026a2252151d5a0c9b14f961a9d80859e4d52a Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Tue, 15 Oct 2024 14:05:39 -0600
Subject: [PATCH] [coretext-font] Implement get_variation_glyph()

Not sure if I got it right, but *seems* to work.
---
 src/hb-coretext-font.cc | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/src/hb-coretext-font.cc b/src/hb-coretext-font.cc
index e367300ad..d6a0dd737 100644
--- a/src/hb-coretext-font.cc
+++ b/src/hb-coretext-font.cc
@@ -107,8 +107,18 @@ hb_coretext_get_variation_glyph (hb_font_t *font HB_UNUSED,
 				 hb_codepoint_t *glyph,
 				 void *user_data HB_UNUSED)
 {
-  // TODO. How?
-  return false;
+  CTFontRef ct_font = (CTFontRef) font_data;
+
+  UniChar ch[2] = { unicode, variation_selector };
+  CGGlyph cg_glyph[2];
+
+  CTFontGetGlyphsForCharacters (ct_font, ch, cg_glyph, 2);
+
+  if (cg_glyph[1])
+    return false;
+
+  *glyph = cg_glyph[0];
+  return true;
 }
 
 static void