buffering: ensure sufficient buffer size loading bitmaps

Commits 5aa0fc3 and 32f1418 (g#4451, g#4452) changed the
amount of space that was allocated for loading bitmaps
used to display album art.

Testing revealed that the size of the JPEG decode buffer
can reach up to (38 * 1024)B in some cases.

When the limit is reached, additional space is required
by the resize_on_load function.

Change-Id: If93b45754a4f5948b6160f659182e4618e01912e

1 files changed, 7 insertions, 1 deletions

diff --git a/apps/buffering.c b/apps/buffering.c
index 81b861ccf1..bf41544c56 100644
--- a/apps/buffering.c
+++ b/apps/buffering.c
@@ -975,8 +975,14 @@ int bufopen(const char *file, off_t offset, enum data_type type,
          * TODO: don't add unncessary overhead for .bmp images! */
         size += JPEG_DECODE_OVERHEAD;
 #endif
-    }
+       /* resize_on_load requires space for 1 line + 2 spare lines */
+#ifdef HAVE_LCD_COLOR
+        size += sizeof(struct uint32_argb) * 3 * aa->dim->width;
+#else
+        size += sizeof(uint32_t) * 3 * aa->dim->width;
 #endif
+    }
+#endif /* HAVE_ALBUMART */
 
     if (size == 0)
         size = filesize(fd);