From a14b30b5ac44d32113c931bafe206fb9a2c00ac5 Mon Sep 17 00:00:00 2001
From: Andrej Babic <andrej.babic@psi.ch>
Date: Mon, 22 Jun 2020 11:14:41 +0200
Subject: [PATCH] Calculate data offset for the image buffer

---
 sf-writer/src/JFH5Writer.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sf-writer/src/JFH5Writer.cpp b/sf-writer/src/JFH5Writer.cpp
index 2b9b274..2a3309a 100644
--- a/sf-writer/src/JFH5Writer.cpp
+++ b/sf-writer/src/JFH5Writer.cpp
@@ -235,13 +235,15 @@ void JFH5Writer::write(
         }
 
         hsize_t offset[] = {data_write_index_, 0, 0};
+        size_t data_offset = i_image * MODULE_N_BYTES * n_modules_;
+
         H5DOwrite_chunk(
                 image_dataset_.getId(),
                 H5P_DEFAULT,
                 0,
                 offset,
                 MODULE_N_BYTES * n_modules_,
-                data);
+                data + data_offset);
 
         data_write_index_++;
     }