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Diffstat (limited to 'nxcomp/GetImage.cpp')
| -rw-r--r-- | nxcomp/GetImage.cpp | 165 |
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 +} + |