1 files changed, 71 insertions, 0 deletions
diff --git a/vrt/lib/copiers.cc b/vrt/lib/copiers.cc
new file mode 100644
index 000000000..ddf82abcf
--- /dev/null
+++ b/vrt/lib/copiers.cc
@@ -0,0 +1,71 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2009 Free Software Foundation, Inc.
+ * 
+ * This file is part of GNU Radio
+ * 
+ * GNU Radio is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ * 
+ * GNU Radio is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <vrt/copiers.h>
+#include <arpa/inet.h>
+#include <assert.h>
+#include <string.h>
+
+namespace vrt {
+
+  void 
+  copy_net_16sc_to_host_16sc(size_t nitems,
+			     const uint32_t *items,
+			     std::complex<int16_t> *host_items)
+  {
+#ifdef WORDS_BIGENDIAN
+
+    assert(sizeof(items[0]) == sizeof(host_items[0]));
+    memcpy(host_items, items, nitems * sizeof(items[0]));
+
+#else
+
+    // FIXME SIMD welcome here
+
+    for (size_t i = 0; i < nitems; i++){
+      uint32_t t = ntohl(items[i]);
+      //printf("%9d\n", items[i]);
+      host_items[i] = std::complex<int16_t>((t >> 16), t & 0xffff);
+    }
+
+#endif
+  }
+
+  void
+  copy_net_16sc_to_host_32fc(size_t nitems,
+			     const uint32_t *items,
+			     std::complex<float> *host_items)
+  {
+    // FIXME SIMD welcome here
+
+    for (size_t i = 0; i < nitems; i++){
+      uint32_t t = ntohl(items[i]);
+      int16_t re = (t >> 16) & 0xffff;
+      int16_t im = (t & 0xffff);
+      host_items[i] = std::complex<float>(re * 1.0/32768, im * 1.0/32768);
+    }
+  }
+
+};
+