From f76c82403888bb498973ec974dbfd20e4edb02fe Mon Sep 17 00:00:00 2001 From: Mike Gabriel Date: Fri, 30 Jun 2017 20:13:51 +0200 Subject: nxcomp: Switch to autoreconf. --- nxcomp/src/PolyText16.cpp | 312 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 312 insertions(+) create mode 100644 nxcomp/src/PolyText16.cpp (limited to 'nxcomp/src/PolyText16.cpp') diff --git a/nxcomp/src/PolyText16.cpp b/nxcomp/src/PolyText16.cpp new file mode 100644 index 000000000..32be45482 --- /dev/null +++ b/nxcomp/src/PolyText16.cpp @@ -0,0 +1,312 @@ +/**************************************************************************/ +/* */ +/* Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com) */ +/* Copyright (c) 2008-2014 Oleksandr Shneyder */ +/* Copyright (c) 2014-2016 Ulrich Sibiller */ +/* Copyright (c) 2014-2016 Mihai Moldovan */ +/* Copyright (c) 2011-2016 Mike Gabriel */ +/* Copyright (c) 2015-2016 Qindel Group (http://www.qindel.com) */ +/* */ +/* NXCOMP, NX protocol compression and NX extensions to this software */ +/* are copyright of the aforementioned persons and companies. */ +/* */ +/* Redistribution and use of the present software is allowed according */ +/* to terms specified in the file LICENSE.nxcomp which comes in the */ +/* source distribution. */ +/* */ +/* All rights reserved. */ +/* */ +/* NOTE: This software has received contributions from various other */ +/* contributors, only the core maintainers and supporters are listed as */ +/* copyright holders. Please contact us, if you feel you should be listed */ +/* as copyright holder, as well. */ +/* */ +/**************************************************************************/ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "PolyText16.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 PolyText16Store::parseIdentity(Message *message, const unsigned char *buffer, + unsigned int size, int bigEndian) const +{ + PolyText16Message *polyText16 = (PolyText16Message *) message; + + // + // Here is the fingerprint. + // + + polyText16 -> drawable = GetULONG(buffer + 4, bigEndian); + polyText16 -> gcontext = GetULONG(buffer + 8, bigEndian); + + polyText16 -> x = GetUINT(buffer + 12, bigEndian); + polyText16 -> y = GetUINT(buffer + 14, bigEndian); + + // + // Clean up padding bytes. + // + + #ifdef DUMP + + DumpData(buffer, size); + + *logofs << "\n" << logofs_flush; + + #endif + + if ((int) size > dataOffset) + { + int current; + int length; + int delta; + int item; + + unsigned int nitem; + + unsigned char *pad = NULL; + unsigned char *end = NULL; + + delta = 1; + nitem = 0; + + #ifdef DUMP + *logofs << name() << " Size " << size << ".\n" << logofs_flush; + #endif + + // + // Data is a list of TextItem where element + // can be a string or a font shift. + // + + current = POLYTEXT16_DATA_OFFSET; + length = POLYTEXT16_DATA_OFFSET; + + do + { + #ifdef DUMP + *logofs << name() << " Current " << current << ".\n" << logofs_flush; + #endif + + item = GetUINT(buffer + length , bigEndian); + + if (item < 255) + { + // + // Text element. Number represents + // the 'Length of CHAR2B string' + // field. + // + + length += ((item * 2) + delta + 1); + + nitem++; + } + else if (item == 255) + { + // + // Element is a font shift. + // + + length += 5; + + nitem++; + } + + #ifdef DUMP + *logofs << name() << " Item " << item << ".\n" << logofs_flush; + #endif + + current += length; + } + while(current < (int) size && item != 0); + + #ifdef DUMP + *logofs << name() << " Final length " << length << ".\n" << logofs_flush; + #endif + + end = ((unsigned char *) buffer) + size; + + pad = ((unsigned char *) buffer) + length; + + for (; pad < end && nitem >= 1; pad++) + { + #ifdef DUMP + *logofs << name() << " Padding " << " .\n" << logofs_flush; + #endif + + *pad = 0; + } + } + + #ifdef DEBUG + *logofs << name() << ": Parsed Identity for message at " << this << ".\n" << logofs_flush; + #endif + + return 1; +} + +int PolyText16Store::unparseIdentity(const Message *message, unsigned char *buffer, + unsigned int size, int bigEndian) const +{ + PolyText16Message *polyText16 = (PolyText16Message *) message; + + // + // Fill all the message's fields. + // + + PutULONG(polyText16 -> drawable, buffer + 4, bigEndian); + PutULONG(polyText16 -> gcontext, buffer + 8, bigEndian); + + PutUINT(polyText16 -> x, buffer + 12, bigEndian); + PutUINT(polyText16 -> y, buffer + 14, bigEndian); + + #ifdef DEBUG + *logofs << name() << ": Unparsed identity for message at " << this << ".\n" << logofs_flush; + #endif + + return 1; +} + +void PolyText16Store::dumpIdentity(const Message *message) const +{ + #ifdef DUMP + + PolyText16Message *polyText16 = (PolyText16Message *) message; + + *logofs << name() << ": Identity drawable " << polyText16 -> drawable + << ", gcontext " << polyText16 -> gcontext << ", x " << polyText16 -> x + << ", y " << polyText16 -> y << ", size " << polyText16 -> size_ + << ".\n"; + + #endif +} + +void PolyText16Store::identityChecksum(const Message *message, const unsigned char *buffer, + unsigned int size, int bigEndian) const +{ +} + +void PolyText16Store::updateIdentity(EncodeBuffer &encodeBuffer, const Message *message, + const Message *cachedMessage, + ChannelCache *channelCache) const +{ + PolyText16Message *polyText16 = (PolyText16Message *) message; + PolyText16Message *cachedPolyText16 = (PolyText16Message *) cachedMessage; + + ClientCache *clientCache = (ClientCache *) channelCache; + + #ifdef TEST + *logofs << name() << ": Encoding value " << polyText16 -> drawable + << " as " << "drawable" << " field.\n" << logofs_flush; + #endif + + encodeBuffer.encodeXidValue(polyText16 -> drawable, clientCache -> drawableCache); + + cachedPolyText16 -> drawable = polyText16 -> drawable; + + #ifdef TEST + *logofs << name() << ": Encoding value " << polyText16 -> gcontext + << " as " << "gcontext" << " field.\n" << logofs_flush; + #endif + + encodeBuffer.encodeXidValue(polyText16 -> gcontext, clientCache -> gcCache); + + cachedPolyText16 -> gcontext = polyText16 -> gcontext; + + #ifdef TEST + *logofs << name() << ": Encoding value " << polyText16 -> x + << " as " << "x" << " field.\n" << logofs_flush; + #endif + + unsigned short int diff_x = polyText16 -> x - cachedPolyText16 -> x; + + encodeBuffer.encodeCachedValue(diff_x, 16, + clientCache -> polyTextCacheX); + + cachedPolyText16 -> x = polyText16 -> x; + + #ifdef TEST + *logofs << name() << ": Encoding value " << polyText16 -> y + << " as " << "y" << " field.\n" << logofs_flush; + #endif + + unsigned short int diff_y = polyText16 -> y - cachedPolyText16 -> y; + + encodeBuffer.encodeCachedValue(diff_y, 16, + clientCache -> polyTextCacheY); + + cachedPolyText16 -> y = polyText16 -> y; +} + +void PolyText16Store::updateIdentity(DecodeBuffer &decodeBuffer, const Message *message, + ChannelCache *channelCache) const +{ + PolyText16Message *polyText16 = (PolyText16Message *) message; + + ClientCache *clientCache = (ClientCache *) channelCache; + + unsigned int value; + + decodeBuffer.decodeXidValue(value, clientCache -> drawableCache); + + polyText16 -> drawable = value; + + #ifdef DEBUG + *logofs << name() << ": Decoded value " << polyText16 -> drawable + << " as " << "drawable" << " field.\n" << logofs_flush; + #endif + + decodeBuffer.decodeXidValue(value, clientCache -> gcCache); + + polyText16 -> gcontext = value; + + #ifdef DEBUG + *logofs << name() << ": Decoded value " << polyText16 -> gcontext + << " as gcontext field.\n" << logofs_flush; + #endif + + decodeBuffer.decodeCachedValue(value, 16, + clientCache -> polyTextCacheX); + + polyText16 -> x += value; + polyText16 -> x &= 0xffff; + + #ifdef DEBUG + *logofs << name() << ": Decoded value " << polyText16 -> x + << " as x field.\n" << logofs_flush; + #endif + + decodeBuffer.decodeCachedValue(value, 16, + clientCache -> polyTextCacheY); + + polyText16 -> y += value; + polyText16 -> y &= 0xffff; + + #ifdef DEBUG + *logofs << name() << ": Decoded value " << polyText16 -> y + << " as y field.\n" << logofs_flush; + #endif +} + + -- cgit v1.2.3