From 4449ec9df99716a1be439c38bffe2a5b013c60bf Mon Sep 17 00:00:00 2001
From: Grigori Goronzy <greg@blackbox>
Date: Fri, 14 Aug 2009 13:57:02 +0200
Subject: Fix crash if glyph bitmap rasterization fails

Check whether the glyph bitmap used for cache size calculations really
exists.
---
 libass/ass_cache.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libass/ass_cache.c b/libass/ass_cache.c
index ac0a00f..643d991 100644
--- a/libass/ass_cache.c
+++ b/libass/ass_cache.c
@@ -226,7 +226,7 @@ void *cache_add_bitmap(Hashmap *bitmap_cache, BitmapHashKey *key,
     // Note: this is only an approximation
     if (val->bm_o)
         bitmap_cache->cache_size += val->bm_o->w * val->bm_o->h * 3;
-    else
+    else if (val->bm)
         bitmap_cache->cache_size += val->bm->w * val->bm->h * 3;
 
     return hashmap_insert(bitmap_cache, key, val);
-- 
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