Merge branch 'nxcomp'

1 files changed, 165 insertions, 0 deletions

diff --git a/nxcomp/GetImage.cpp b/nxcomp/GetImage.cpp
new file mode 100644
index 000000000..6be574dbb
--- /dev/null
+++ b/nxcomp/GetImage.cpp
@@ -0,0 +1,165 @@
+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2010 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 Medialogic S.p.A.                   */
+/*                                                                        */
+/* All rights reserved.                                                   */
+/*                                                                        */
+/**************************************************************************/
+
+#include "GetImage.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 GetImageStore::parseIdentity(Message *message, const unsigned char *buffer,
+                                     unsigned int size, int bigEndian) const
+{
+  GetImageMessage *getImage = (GetImageMessage *) message;
+
+  //
+  // Here is the fingerprint.
+  //
+
+  getImage -> format = *(buffer + 1);
+
+  #ifdef TEST
+  if (getImage -> format != 1 && getImage -> format != 2)
+  {
+    *logofs << name() << ": WARNING! Dirty value " << getImage -> format 
+            << " for field format.\n" << logofs_flush;
+  }
+  #endif
+
+  getImage -> drawable = GetULONG(buffer + 4, bigEndian);
+
+  getImage -> x      = GetUINT(buffer + 8, bigEndian);
+  getImage -> y      = GetUINT(buffer + 10, bigEndian);
+  getImage -> width  = GetUINT(buffer + 12, bigEndian);
+  getImage -> height = GetUINT(buffer + 14, bigEndian);
+
+  getImage -> plane_mask = GetULONG(buffer + 16, bigEndian);
+
+  #ifdef DEBUG
+  *logofs << name() << ": Parsed Identity for message at " << this << ".\n" << logofs_flush;
+  #endif
+
+  return 1;
+}
+
+int GetImageStore::unparseIdentity(const Message *message, unsigned char *buffer,
+                                       unsigned int size, int bigEndian) const
+{
+  GetImageMessage *getImage = (GetImageMessage *) message;
+
+  //
+  // Fill all the message's fields.
+  //
+
+  *(buffer + 1) = getImage -> format;
+
+  PutULONG(getImage -> drawable, buffer + 4,  bigEndian);
+
+  PutUINT(getImage -> x,      buffer + 8,  bigEndian);
+  PutUINT(getImage -> y,      buffer + 10, bigEndian);
+  PutUINT(getImage -> width,  buffer + 12, bigEndian);
+  PutUINT(getImage -> height, buffer + 14, bigEndian);
+
+  PutULONG(getImage -> plane_mask, buffer + 16,  bigEndian);
+
+  #ifdef DEBUG
+  *logofs << name() << ": Unparsed identity for message at " << this << ".\n" << logofs_flush;
+  #endif
+
+  return 1;
+}
+
+void GetImageStore::dumpIdentity(const Message *message) const
+{
+  #ifdef DUMP
+
+  GetImageMessage *getImage = (GetImageMessage *) message;
+
+  *logofs << name() << ": Identity format " << (unsigned) getImage -> format 
+          << ", drawable " << getImage -> drawable << ", x " << getImage -> x 
+          << ", y " << getImage -> y << ", width " << getImage -> width 
+          << ", height " << getImage -> height << ", plane_mask " 
+          << getImage -> plane_mask << ", size " << getImage -> size_
+          << ".\n" << logofs_flush;
+
+  #endif
+}
+
+void GetImageStore::identityChecksum(const Message *message, const unsigned char *buffer,
+                                         unsigned int size, int bigEndian) const
+{
+  md5_append(md5_state_, buffer + 1,  1);
+  md5_append(md5_state_, buffer + 8,  2);
+  md5_append(md5_state_, buffer + 10, 2);
+  md5_append(md5_state_, buffer + 12, 2);
+  md5_append(md5_state_, buffer + 14, 2);
+  md5_append(md5_state_, buffer + 16, 4);
+}
+
+void GetImageStore::updateIdentity(EncodeBuffer &encodeBuffer, const Message *message,
+                                       const Message *cachedMessage,
+                                           ChannelCache *channelCache) const
+{
+  GetImageMessage *getImage       = (GetImageMessage *) message;
+  GetImageMessage *cachedGetImage = (GetImageMessage *) cachedMessage;
+
+  ClientCache *clientCache = (ClientCache *) channelCache;
+
+  #ifdef TEST
+  *logofs << name() << ": Encoding value " << getImage -> drawable
+          << " as drawable field.\n" << logofs_flush;
+  #endif
+
+  encodeBuffer.encodeXidValue(getImage -> drawable, clientCache -> drawableCache);
+
+  cachedGetImage -> drawable = getImage -> drawable;
+}
+
+void GetImageStore::updateIdentity(DecodeBuffer &decodeBuffer, const Message *message,
+                                       ChannelCache *channelCache) const
+{
+  GetImageMessage *getImage = (GetImageMessage *) message;
+
+  ClientCache *clientCache = (ClientCache *) channelCache;
+
+  unsigned int value;
+
+  decodeBuffer.decodeXidValue(value, clientCache -> drawableCache);
+
+  getImage -> drawable = value;
+
+  #ifdef DEBUG
+  *logofs << name() << ": Decoded value " << getImage -> drawable
+          << " as drawable field.\n" << logofs_flush;
+  #endif
+}
+