Imported nxcomp-3.1.0-4.tar.gznxcomp/3.1.0-4

Summary: Imported nxcomp-3.1.0-4.tar.gz
Keywords:

Imported nxcomp-3.1.0-4.tar.gz
into Git repository

1 files changed, 219 insertions, 0 deletions

diff --git a/nxcomp/ImageText8.cpp b/nxcomp/ImageText8.cpp
new file mode 100755
index 000000000..f49edbd42
--- /dev/null
+++ b/nxcomp/ImageText8.cpp
@@ -0,0 +1,219 @@
+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com/.         */
+/*                                                                        */
+/* NXCOMP, NX protocol compression and NX extensions to this software     */
+/* are copyright of NoMachine. Redistribution and use of the present      */
+/* software is allowed according to terms specified in the file LICENSE   */
+/* which comes in the source distribution.                                */
+/*                                                                        */
+/* Check http://www.nomachine.com/licensing.html for applicability.       */
+/*                                                                        */
+/* NX and NoMachine are trademarks of NoMachine S.r.l.                    */
+/*                                                                        */
+/* All rights reserved.                                                   */
+/*                                                                        */
+/**************************************************************************/
+
+#include "ImageText8.h"
+
+#include "ClientCache.h"
+
+#include "EncodeBuffer.h"
+#include "DecodeBuffer.h"
+
+//
+// Set the verbosity level.
+//
+
+#define PANIC
+#define WARNING
+#undef  TEST
+#undef  DEBUG
+#undef  DUMP
+
+//
+// Here are the methods to handle messages' content.
+//
+
+int ImageText8Store::parseIdentity(Message *message, const unsigned char *buffer,
+                                       unsigned int size, int bigEndian) const
+{
+  ImageText8Message *imageText8 = (ImageText8Message *) message;
+
+  //
+  // Here is the fingerprint.
+  //
+
+  imageText8 -> len = *(buffer + 1); 
+
+  imageText8 -> drawable = GetULONG(buffer + 4, bigEndian); 
+  imageText8 -> gcontext = GetULONG(buffer + 8, bigEndian);
+
+  imageText8 -> x  = GetUINT(buffer + 12, bigEndian);
+  imageText8 -> y  = GetUINT(buffer + 14, bigEndian);
+
+  if ((int) size > dataOffset)
+  {
+    int pad = (size - dataOffset) - imageText8 -> len;
+ 
+    if (pad > 0)
+    {
+      CleanData((unsigned char *) buffer + size - pad, pad);
+    }
+  }
+
+  #ifdef DEBUG
+  *logofs << name() << ": Parsed Identity for message at " << this << ".\n" << logofs_flush;
+  #endif
+
+  return 1;
+}
+
+int ImageText8Store::unparseIdentity(const Message *message, unsigned char *buffer,
+                                         unsigned int size, int bigEndian) const
+{
+  ImageText8Message *imageText8 = (ImageText8Message *) message;
+
+  //
+  // Fill all the message's fields.
+  //
+
+  *(buffer + 1) = imageText8 -> len;
+
+  PutULONG(imageText8 -> drawable, buffer + 4, bigEndian);
+  PutULONG(imageText8 -> gcontext, buffer + 8, bigEndian);
+
+  PutUINT(imageText8 -> x, buffer + 12, bigEndian);
+  PutUINT(imageText8 -> y, buffer + 14, bigEndian);
+
+  #ifdef DEBUG
+  *logofs << name() << ": Unparsed identity for message at " << this << ".\n" << logofs_flush;
+  #endif
+
+  return 1;
+}
+
+void ImageText8Store::dumpIdentity(const Message *message) const
+{
+  #ifdef DUMP
+
+  ImageText8Message *imageText8 = (ImageText8Message *) message;
+
+  *logofs << name() << ": Identity len " << (unsigned int) imageText8 -> len
+          << " drawable " << imageText8 -> drawable << ", gcontext " 
+          << imageText8 -> gcontext << ", x " << imageText8 -> x << ", y " 
+          << imageText8 -> y << ", size " << imageText8 -> size_ << ".\n";
+
+  #endif
+}
+
+void ImageText8Store::identityChecksum(const Message *message, const unsigned char *buffer,
+                                           unsigned int size, int bigEndian) const
+{
+  md5_append(md5_state_, buffer + 1,  1);
+}
+
+void ImageText8Store::updateIdentity(EncodeBuffer &encodeBuffer, const Message *message,
+                                         const Message *cachedMessage,
+                                             ChannelCache *channelCache) const
+{
+  ImageText8Message *imageText8       = (ImageText8Message *) message;
+  ImageText8Message *cachedImageText8 = (ImageText8Message *) cachedMessage;
+
+  ClientCache *clientCache = (ClientCache *) channelCache;
+
+  #ifdef TEST
+  *logofs << name() << ": Encoding value " << imageText8 -> drawable
+          << " as " << "drawable" << " field.\n" << logofs_flush;
+  #endif
+
+  encodeBuffer.encodeXidValue(imageText8 -> drawable, clientCache -> drawableCache);
+
+  cachedImageText8 -> drawable = imageText8 -> drawable;
+
+  #ifdef TEST
+  *logofs << name() << ": Encoding value " << imageText8 -> gcontext
+          << " as " << "gcontext" << " field.\n" << logofs_flush;
+  #endif
+
+  encodeBuffer.encodeXidValue(imageText8 -> gcontext, clientCache -> gcCache);
+
+  cachedImageText8 -> gcontext = imageText8 -> gcontext;
+
+  #ifdef TEST
+  *logofs << name() << ": Encoding value " << imageText8 -> x
+          << " as " << "x" << " field.\n" << logofs_flush;
+  #endif
+
+  unsigned short int diff_x = imageText8 -> x - cachedImageText8 -> x;
+
+  encodeBuffer.encodeCachedValue(diff_x, 16,
+                     clientCache -> imageTextCacheX);
+
+  cachedImageText8 -> x = imageText8 -> x;
+
+  #ifdef TEST
+  *logofs << name() << ": Encoding value " << imageText8 -> y
+          << " as " << "y" << " field.\n" << logofs_flush;
+  #endif
+
+  unsigned short int diff_y = imageText8 -> y - cachedImageText8 -> y;
+
+  encodeBuffer.encodeCachedValue(diff_y, 16,
+                     clientCache -> imageTextCacheY);
+
+  cachedImageText8 -> y = imageText8 -> y;
+}
+
+void ImageText8Store::updateIdentity(DecodeBuffer &decodeBuffer, const Message *message,
+                                           ChannelCache *channelCache) const
+{
+  ImageText8Message *imageText8 = (ImageText8Message *) message;
+
+  ClientCache *clientCache = (ClientCache *) channelCache;
+
+  unsigned int value;
+
+  decodeBuffer.decodeXidValue(value, clientCache -> drawableCache);
+
+  imageText8 -> drawable = value;
+
+  #ifdef DEBUG
+  *logofs << name() << ": Decoded value " << imageText8 -> drawable
+          << " as " << "drawable" << " field.\n" << logofs_flush;
+  #endif
+
+  decodeBuffer.decodeXidValue(value, clientCache -> gcCache);
+
+  imageText8 -> gcontext = value;
+
+  #ifdef DEBUG
+  *logofs << name() << ": Decoded value " << imageText8 -> gcontext
+          << " as gcontext field.\n" << logofs_flush;
+  #endif
+
+  decodeBuffer.decodeCachedValue(value, 16,
+               clientCache -> imageTextCacheX);
+
+  imageText8 -> x += value;
+  imageText8 -> x &= 0xffff;
+
+  #ifdef DEBUG
+  *logofs << name() << ": Decoded value " << imageText8 -> x
+          << " as x field.\n" << logofs_flush;
+  #endif
+
+  decodeBuffer.decodeCachedValue(value, 16,
+               clientCache -> imageTextCacheY);
+
+  imageText8 -> y += value;
+  imageText8 -> y &= 0xffff;
+
+  #ifdef DEBUG
+  *logofs << name() << ": Decoded value " << imageText8 -> y
+          << " as y field.\n" << logofs_flush;
+  #endif
+}
+
+