nxcomp: Switch to autoreconf.

1 files changed, 91 insertions, 0 deletions

diff --git a/nxcomp/src/CharCache.h b/nxcomp/src/CharCache.h
new file mode 100644
index 000000000..b8891d2df
--- /dev/null
+++ b/nxcomp/src/CharCache.h
@@ -0,0 +1,91 @@
+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com)          */
+/* Copyright (c) 2008-2014 Oleksandr Shneyder <o.shneyder@phoca-gmbh.de>  */
+/* Copyright (c) 2014-2016 Ulrich Sibiller <uli42@gmx.de>                 */
+/* Copyright (c) 2014-2016 Mihai Moldovan <ionic@ionic.de>                */
+/* Copyright (c) 2011-2016 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>*/
+/* Copyright (c) 2015-2016 Qindel Group (http://www.qindel.com)           */
+/*                                                                        */
+/* NXCOMP, NX protocol compression and NX extensions to this software     */
+/* are copyright of the aforementioned persons and companies.             */
+/*                                                                        */
+/* Redistribution and use of the present software is allowed according    */
+/* to terms specified in the file LICENSE.nxcomp which comes in the       */
+/* source distribution.                                                   */
+/*                                                                        */
+/* All rights reserved.                                                   */
+/*                                                                        */
+/* NOTE: This software has received contributions from various other      */
+/* contributors, only the core maintainers and supporters are listed as   */
+/* copyright holders. Please contact us, if you feel you should be listed */
+/* as copyright holder, as well.                                          */
+/*                                                                        */
+/**************************************************************************/
+
+#ifndef CharCache_H
+#define CharCache_H
+
+//
+// CharCache is a counterpart of IntCache that is
+// optimized for use in compressing text composed
+// of 8-bit characters.
+//
+
+class CharCache
+{
+  public:
+
+  CharCache() : length_(0)
+  {
+  }
+
+  ~CharCache()
+  {
+  }
+
+  unsigned int getSize() const
+  {
+    return (unsigned int) length_;
+  }
+
+  int lookup(unsigned char value, unsigned int &index);
+
+  //
+  // This can be inlined as it is only
+  // called by decodeCachedValue().
+  //
+
+  unsigned int get(unsigned int index)
+  {
+    unsigned char result = buffer_[index];
+
+    if (index != 0)
+    {
+      unsigned int i = index;
+      unsigned int target = (i >> 1);
+
+      do
+      {
+        buffer_[i] = buffer_[i - 1];
+
+        i--;
+      }
+      while (i > target);
+
+      buffer_[target] = result;
+    }
+
+    return (unsigned int) result;
+  }
+
+  void insert(unsigned char value);
+
+  private:
+
+  unsigned char length_;
+
+  unsigned char buffer_[7];
+};
+
+#endif /* CharCache_H */