StreamHandle: fix subtle bugs during backwards seeking

See original commit: glencoesoftware/bioformats@84fa9b6
ome · Jan 11, 2018 · 518f31b · 518f31b
1 parent f5e4cac
commit 518f31b
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/src/main/java/loci/common/StreamHandle.java b/src/main/java/loci/common/StreamHandle.java
@@ -156,15 +156,18 @@ public void seek(long pos) throws IOException {
     fp = pos;
 
     if (diff < 0) {
+      // resetStream sets the fp to 0
       resetStream();
-      diff = fp;
+      diff = pos;
+      fp = pos;
     }
     int skipped = stream.skipBytes((int) diff);
     while (skipped < diff) {
       int n = stream.skipBytes((int) (diff - skipped));
       if (n == 0) break;
       skipped += n;
     }
+    markManager();
   }
 
   /* @see IRandomAccess.write(ByteBuffer) */