From 3307f1b381eb12999d39984486146ed504dbb6c2 Mon Sep 17 00:00:00 2001
From: David Thompson <dthompson2@worcester.edu>
Date: Fri, 11 Oct 2013 21:30:27 -0400
Subject: Add error handling to ftgl-create-texture-font.

---
 2d/wrappers/ftgl.scm | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/2d/wrappers/ftgl.scm b/2d/wrappers/ftgl.scm
index 537655c..1ff42d7 100644
--- a/2d/wrappers/ftgl.scm
+++ b/2d/wrappers/ftgl.scm
@@ -80,8 +80,12 @@
   float "ftglGetFontAscender" '(*))
 
 (define (ftgl-create-texture-font filename)
-  (wrap-ftgl-font
-   (%ftgl-create-texture-font (string->pointer filename))))
+  (unless (file-exists? filename)
+    (throw 'font-not-found filename))
+  (let ((font (%ftgl-create-texture-font (string->pointer filename))))
+    (when (null-pointer? font)
+      (throw 'font-load-failure filename))
+    (wrap-ftgl-font font)))
 
 (define (ftgl-set-font-face-size font size res)
   (%ftgl-set-font-face-size (unwrap-ftgl-font font) size res))
-- 
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