1 files changed, 136 insertions, 0 deletions
diff --git a/host/include/uhd/utils/byteswap.ipp b/host/include/uhd/utils/byteswap.ipp
new file mode 100644
index 000000000..51e9c28a0
--- /dev/null
+++ b/host/include/uhd/utils/byteswap.ipp
@@ -0,0 +1,136 @@
+//
+// Copyright 2010-2011 Ettus Research LLC
+//
+// This program 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 of the License, or
+// (at your option) any later version.
+//
+// This program 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, see <http://www.gnu.org/licenses/>.
+//
+
+#ifndef INCLUDED_UHD_UTILS_BYTESWAP_IPP
+#define INCLUDED_UHD_UTILS_BYTESWAP_IPP
+
+/***********************************************************************
+ * Platform-specific implementation details for byteswap below:
+ **********************************************************************/
+#if defined(BOOST_MSVC) //http://msdn.microsoft.com/en-us/library/a3140177%28VS.80%29.aspx
+    #include <cstdlib>
+
+    UHD_INLINE boost::uint16_t uhd::byteswap(boost::uint16_t x){
+        return _byteswap_ushort(x);
+    }
+
+    UHD_INLINE boost::uint32_t uhd::byteswap(boost::uint32_t x){
+        return _byteswap_ulong(x);
+    }
+
+    UHD_INLINE boost::uint64_t uhd::byteswap(boost::uint64_t x){
+        return _byteswap_uint64(x);
+    }
+
+#elif defined(__GNUC__) && __GNUC__ >= 4 && __GNUC_MINOR__ >= 2
+
+    UHD_INLINE boost::uint16_t uhd::byteswap(boost::uint16_t x){
+        return (x>>8) | (x<<8); //DNE return __builtin_bswap16(x);
+    }
+
+    UHD_INLINE boost::uint32_t uhd::byteswap(boost::uint32_t x){
+        return __builtin_bswap32(x);
+    }
+
+    UHD_INLINE boost::uint64_t uhd::byteswap(boost::uint64_t x){
+        return __builtin_bswap64(x);
+    }
+
+#elif defined(UHD_PLATFORM_MACOS)
+    #include <libkern/OSByteOrder.h>
+
+    UHD_INLINE boost::uint16_t uhd::byteswap(boost::uint16_t x){
+        return OSSwapInt16(x);
+    }
+
+    UHD_INLINE boost::uint32_t uhd::byteswap(boost::uint32_t x){
+        return OSSwapInt32(x);
+    }
+
+    UHD_INLINE boost::uint64_t uhd::byteswap(boost::uint64_t x){
+        return OSSwapInt64(x);
+    }
+
+#elif defined(UHD_PLATFORM_LINUX)
+    #include <byteswap.h>
+
+    UHD_INLINE boost::uint16_t uhd::byteswap(boost::uint16_t x){
+        return bswap_16(x);
+    }
+
+    UHD_INLINE boost::uint32_t uhd::byteswap(boost::uint32_t x){
+        return bswap_32(x);
+    }
+
+    UHD_INLINE boost::uint64_t uhd::byteswap(boost::uint64_t x){
+        return bswap_64(x);
+    }
+
+#else //http://www.koders.com/c/fidB93B34CD44F0ECF724F1A4EAE3854BA2FE692F59.aspx
+
+    UHD_INLINE boost::uint16_t uhd::byteswap(boost::uint16_t x){
+        return (x>>8) | (x<<8);
+    }
+
+    UHD_INLINE boost::uint32_t uhd::byteswap(boost::uint32_t x){
+        return (boost::uint32_t(uhd::byteswap(boost::uint16_t(x&0xfffful)))<<16) | (uhd::byteswap(boost::uint16_t(x>>16)));
+    }
+
+    UHD_INLINE boost::uint64_t uhd::byteswap(boost::uint64_t x){
+        return (boost::uint64_t(uhd::byteswap(boost::uint32_t(x&0xffffffffull)))<<32) | (uhd::byteswap(boost::uint32_t(x>>32)));
+    }
+
+#endif
+
+/***********************************************************************
+ * Define the templated network to/from host conversions
+ **********************************************************************/
+#include <boost/detail/endian.hpp>
+
+template<typename T> UHD_INLINE T uhd::ntohx(T num){
+    #ifdef BOOST_BIG_ENDIAN
+        return num;
+    #else
+        return uhd::byteswap(num);
+    #endif
+}
+
+template<typename T> UHD_INLINE T uhd::htonx(T num){
+    #ifdef BOOST_BIG_ENDIAN
+        return num;
+    #else
+        return uhd::byteswap(num);
+    #endif
+}
+
+template<typename T> UHD_INLINE T uhd::wtohx(T num){
+    #ifdef BOOST_BIG_ENDIAN
+        return uhd::byteswap(num);
+    #else
+        return num;
+    #endif
+}
+
+template<typename T> UHD_INLINE T uhd::htowx(T num){
+    #ifdef BOOST_BIG_ENDIAN
+        return uhd::byteswap(num);
+    #else
+        return num;
+    #endif
+}
+
+#endif /* INCLUDED_UHD_UTILS_BYTESWAP_IPP */