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Diffstat (limited to 'nxcomp/FillPoly.cpp')
| -rw-r--r-- | nxcomp/FillPoly.cpp | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/nxcomp/FillPoly.cpp b/nxcomp/FillPoly.cpp new file mode 100644 index 000000000..37df3772b --- /dev/null +++ b/nxcomp/FillPoly.cpp @@ -0,0 +1,227 @@ +/**************************************************************************/ +/* */ +/* 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 "FillPoly.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 FillPolyStore::parseIdentity(Message *message, const unsigned char *buffer, + unsigned int size, int bigEndian) const +{ + FillPolyMessage *fillPoly = (FillPolyMessage *) message; + + // + // Here is the fingerprint. + // + + fillPoly -> drawable = GetULONG(buffer + 4, bigEndian); + fillPoly -> gcontext = GetULONG(buffer + 8, bigEndian); + + fillPoly -> shape = *(buffer + 12); + fillPoly -> mode = *(buffer + 13); + + if (control -> isProtoStep8() == 1 && + size >= (unsigned int) dataOffset) + { + fillPoly -> x_origin = GetUINT(buffer + 16, bigEndian); + fillPoly -> y_origin = GetUINT(buffer + 18, bigEndian); + } + else + { + fillPoly -> x_origin = 0; + fillPoly -> y_origin = 0; + } + + #ifdef DEBUG + *logofs << name() << ": Parsed Identity for message at " << this << ".\n" << logofs_flush; + #endif + + return 1; +} + +int FillPolyStore::unparseIdentity(const Message *message, unsigned char *buffer, + unsigned int size, int bigEndian) const +{ + FillPolyMessage *fillPoly = (FillPolyMessage *) message; + + // + // Fill all the message's fields. + // + + PutULONG(fillPoly -> drawable, buffer + 4, bigEndian); + PutULONG(fillPoly -> gcontext, buffer + 8, bigEndian); + + *(buffer + 12) = fillPoly -> shape; + *(buffer + 13) = fillPoly -> mode; + + if (control -> isProtoStep8() == 1 && + size >= (unsigned int) dataOffset) + { + PutUINT(fillPoly -> x_origin, buffer + 16, bigEndian); + PutUINT(fillPoly -> y_origin, buffer + 18, bigEndian); + } + + #ifdef DEBUG + *logofs << name() << ": Unparsed identity for message at " << this << ".\n" << logofs_flush; + #endif + + return 1; +} + +void FillPolyStore::dumpIdentity(const Message *message) const +{ + #ifdef DUMP + + FillPolyMessage *fillPoly = (FillPolyMessage *) message; + + *logofs << name() << ": Identity drawable " << fillPoly -> drawable + << ", gcontext " << fillPoly -> gcontext << ", shape " + << fillPoly -> shape << ", mode " << fillPoly -> mode + << fillPoly -> size_ << ", x_origin " << fillPoly -> x_origin + << ", y_origin " << fillPoly -> y_origin << ".\n" + << logofs_flush; + #endif +} + +void FillPolyStore::identityChecksum(const Message *message, const unsigned char *buffer, + unsigned int size, int bigEndian) const +{ + // + // Fields shape, mode. + // + + md5_append(md5_state_, buffer + 12, 2); +} + +void FillPolyStore::updateIdentity(EncodeBuffer &encodeBuffer, const Message *message, + const Message *cachedMessage, + ChannelCache *channelCache) const +{ + FillPolyMessage *fillPoly = (FillPolyMessage *) message; + FillPolyMessage *cachedFillPoly = (FillPolyMessage *) cachedMessage; + + ClientCache *clientCache = (ClientCache *) channelCache; + + #ifdef TEST + *logofs << name() << ": Encoding value " << fillPoly -> drawable + << " as drawable field.\n" << logofs_flush; + #endif + + encodeBuffer.encodeXidValue(fillPoly -> drawable, clientCache -> drawableCache); + + cachedFillPoly -> drawable = fillPoly -> drawable; + + #ifdef TEST + *logofs << name() << ": Encoding value " << fillPoly -> gcontext + << " as gcontext field.\n" << logofs_flush; + #endif + + encodeBuffer.encodeXidValue(fillPoly -> gcontext, clientCache -> gcCache); + + cachedFillPoly -> gcontext = fillPoly -> gcontext; + + if (control -> isProtoStep8() == 1 && + fillPoly -> size_ >= dataOffset) + { + #ifdef TEST + *logofs << name() << ": Encoding value " << fillPoly -> x_origin + << " as x_origin field.\n" << logofs_flush; + #endif + + encodeBuffer.encodeCachedValue(fillPoly -> x_origin, 16, + *clientCache -> fillPolyXAbsCache[0], 8); + + cachedFillPoly -> x_origin = fillPoly -> x_origin; + + #ifdef TEST + *logofs << name() << ": Encoding value " << fillPoly -> y_origin + << " as y_origin field.\n" << logofs_flush; + #endif + + encodeBuffer.encodeCachedValue(fillPoly -> y_origin, 16, + *clientCache -> fillPolyYAbsCache[0], 8); + + cachedFillPoly -> y_origin = fillPoly -> y_origin; + } +} + +void FillPolyStore::updateIdentity(DecodeBuffer &decodeBuffer, const Message *message, + ChannelCache *channelCache) const +{ + FillPolyMessage *fillPoly = (FillPolyMessage *) message; + + ClientCache *clientCache = (ClientCache *) channelCache; + + decodeBuffer.decodeXidValue(fillPoly -> drawable, clientCache -> drawableCache); + + #ifdef TEST + *logofs << name() << ": Decoded value " << fillPoly -> drawable + << " as drawable field.\n" << logofs_flush; + #endif + + decodeBuffer.decodeXidValue(fillPoly -> gcontext, clientCache -> gcCache); + + #ifdef TEST + *logofs << name() << ": Decoded value " << fillPoly -> gcontext + << " as gcontext field.\n" << logofs_flush; + #endif + + if (control -> isProtoStep8() == 1 && + fillPoly -> size_ >= dataOffset) + { + unsigned int value; + + decodeBuffer.decodeCachedValue(value, 16, + *clientCache -> fillPolyXAbsCache[0], 8); + + fillPoly -> x_origin = value; + + #ifdef TEST + *logofs << name() << ": Decoded value " << fillPoly -> x_origin + << " as x_origin field.\n" << logofs_flush; + #endif + + decodeBuffer.decodeCachedValue(value, 16, + *clientCache -> fillPolyYAbsCache[0], 8); + + fillPoly -> y_origin = value; + + #ifdef TEST + *logofs << name() << ": Decoded value " << fillPoly -> y_origin + << " as y_origin field.\n" << logofs_flush; + #endif + } +} + + |