summaryrefslogtreecommitdiffstats
path: root/src/kvilib/core/kvi_bswap.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/kvilib/core/kvi_bswap.h')
-rw-r--r--src/kvilib/core/kvi_bswap.h63
1 files changed, 63 insertions, 0 deletions
diff --git a/src/kvilib/core/kvi_bswap.h b/src/kvilib/core/kvi_bswap.h
new file mode 100644
index 00000000..5d5ef5bb
--- /dev/null
+++ b/src/kvilib/core/kvi_bswap.h
@@ -0,0 +1,63 @@
+#ifndef _KVI_BSWAP_H_
+#define _KVI_BSWAP_H_
+
+//=============================================================================
+//
+// File : kvi_bswap.h
+// Creation date : Fri Mar 19 1999 03:15:21 CEST by Szymon Stefanek
+//
+// This file is part of the KVirc irc client distribution
+// Copyright (C) 1999-2006 Szymon Stefanek (pragma at kvirc dot net)
+//
+// 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 2
+// of the License, or (at your opinion) 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, write to the Free Software Foundation,
+// Inc. ,51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+//
+//=============================================================================
+
+#include "kvi_settings.h"
+#include "kvi_inttypes.h"
+
+
+// KVILIB_API has been removed from therse two functions
+// these should always go inlined
+
+inline kvi_u64_t kvi_swap64(kvi_u64_t i)
+{
+ // abcdefgh to hgfedcba
+ return ((i << 56) | /* h to a */
+ ((i & 0xff00) << 40) | /* g to b */
+ ((i & 0xff0000) << 24) | /* f to c */
+ ((i & 0xff000000) << 8) | /* e to d */
+ ((i >> 8) & 0xff000000) | /* d to e */
+ ((i >> 24) & 0xff0000) | /* c to f */
+ ((i >> 40) & 0xff00) | /* b to g */
+ (i >> 56)); /* a to h */
+}
+
+inline kvi_u32_t kvi_swap32(kvi_u32_t i)
+{
+ // abcd to dcba
+ return ((i << 24) | ((i & 0xff00) << 8) | ((i >> 8) & 0xff00) | (i >> 24));
+}
+
+inline kvi_u16_t kvi_swap16(kvi_u16_t i)
+{
+ // ab to ba
+ return ((i << 8) | (i >> 8));
+}
+
+
+
+
+#endif // !_KVI_BSWAP_H_