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-rw-r--r--nxcomp/GetImage.cpp165
1 files changed, 165 insertions, 0 deletions
diff --git a/nxcomp/GetImage.cpp b/nxcomp/GetImage.cpp
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+++ b/nxcomp/GetImage.cpp
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+/**************************************************************************/
+/* */
+/* 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
+}
+