fix a double free

1 files changed, 9 insertions, 3 deletions

diff --git a/dc/dc.c b/dc/dc.c
index b68988e..99f9cf1 100644
--- a/dc/dc.c
+++ b/dc/dc.c
@@ -13,7 +13,7 @@
 #define TILE_SIZE 16
 
 struct ty_image img;
-struct ty_font font;
+struct ty_font font = {};
 
 double last_frame = 0;
 
@@ -182,8 +182,14 @@ int main(void)
     ty_free_image(img);
     ty_free_image(font_img);
 
-    for (int i = 0; i < CHAR_MAX; i++)
-        ty_free_image(font.glyphs[i]);
+    for (int i = 0; i < CHAR_MAX; i++) {
+        if (i >= 'a' && i <= 'z')
+            continue;
+        struct ty_image glyph = font.glyphs[i];
+        if (glyph.width * glyph.height == 0)
+            continue;
+        ty_free_image(glyph);
+    }
 
     ty_deinit();
     return 0;