/**************************************************************************/ /* */ /* Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com) */ /* Copyright (c) 2008-2014 Oleksandr Shneyder <o.shneyder@phoca-gmbh.de> */ /* Copyright (c) 2014-2016 Ulrich Sibiller <uli42@gmx.de> */ /* Copyright (c) 2014-2016 Mihai Moldovan <ionic@ionic.de> */ /* Copyright (c) 2011-2016 Mike Gabriel <mike.gabriel@das-netzwerkteam.de>*/ /* 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. */ /* */ /**************************************************************************/ #include "PutPackedImage.h" #include "ClientCache.h" #include "EncodeBuffer.h" #include "DecodeBuffer.h" #include "WriteBuffer.h" // // Set the verbosity level. // #define PANIC #define WARNING #undef TEST #undef DEBUG #undef DUMP // // Constructors and destructors. // PutPackedImageStore::PutPackedImageStore(StaticCompressor *compressor) : MessageStore(compressor) { enableCache = PUTPACKEDIMAGE_ENABLE_CACHE; enableData = PUTPACKEDIMAGE_ENABLE_DATA; enableCompress = PUTPACKEDIMAGE_ENABLE_COMPRESS; dataLimit = PUTPACKEDIMAGE_DATA_LIMIT; dataOffset = PUTPACKEDIMAGE_DATA_OFFSET; cacheSlots = PUTPACKEDIMAGE_CACHE_SLOTS; cacheThreshold = PUTPACKEDIMAGE_CACHE_THRESHOLD; cacheLowerThreshold = PUTPACKEDIMAGE_CACHE_LOWER_THRESHOLD; // Since ProtoStep8 (#issue 108) enableSplit = PUTPACKEDIMAGE_ENABLE_SPLIT_IF_PROTO_STEP_8; messages_ -> resize(cacheSlots); for (T_messages::iterator i = messages_ -> begin(); i < messages_ -> end(); i++) { *i = NULL; } temporary_ = NULL; } PutPackedImageStore::~PutPackedImageStore() { for (T_messages::iterator i = messages_ -> begin(); i < messages_ -> end(); i++) { destroy(*i); } destroy(temporary_); } // // Here are the methods to handle messages' content. // int PutPackedImageStore::encodeIdentity(EncodeBuffer &encodeBuffer, const unsigned char *buffer, const unsigned int size, int bigEndian, ChannelCache *channelCache) const { ClientCache *clientCache = (ClientCache *) channelCache; #ifdef DEBUG *logofs << name() << ": Encoding full message identity.\n" << logofs_flush; #endif // Client. encodeBuffer.encodeCachedValue(*(buffer + 1), 8, clientCache -> resourceCache); // Size. encodeBuffer.encodeValue(GetUINT(buffer + 2, bigEndian), 16, 10); // Drawable. encodeBuffer.encodeXidValue(GetULONG(buffer + 4, bigEndian), clientCache -> drawableCache); // GC. encodeBuffer.encodeXidValue(GetULONG(buffer + 8, bigEndian), clientCache -> gcCache); // Method. encodeBuffer.encodeCachedValue(*(buffer + 12), 8, clientCache -> methodCache); // Format. encodeBuffer.encodeValue(*(buffer + 13), 2); // SrcDepth. encodeBuffer.encodeCachedValue(*(buffer + 14), 8, clientCache -> depthCache); // DstDepth. encodeBuffer.encodeCachedValue(*(buffer + 15), 8, clientCache -> depthCache); // SrcLength. encodeBuffer.encodeCachedValue(GetULONG(buffer + 16, bigEndian), 24, clientCache -> putPackedImageSrcLengthCache); // DstLength. encodeBuffer.encodeCachedValue(GetULONG(buffer + 20, bigEndian), 24, clientCache -> putPackedImageDstLengthCache); // SrcX. unsigned int x = GetUINT(buffer + 24, bigEndian); int xDiff = x - clientCache -> putImageLastX; clientCache -> putImageLastX = x; encodeBuffer.encodeCachedValue(xDiff, 16, clientCache -> putImageXCache, 8); // SrcY. unsigned int y = GetUINT(buffer + 26, bigEndian); int yDiff = y - clientCache -> putImageLastY; clientCache -> putImageLastY = y; encodeBuffer.encodeCachedValue(yDiff, 16, clientCache -> putImageYCache, 8); // SrcWidth. encodeBuffer.encodeCachedValue(GetUINT(buffer + 28, bigEndian), 16, clientCache -> putImageWidthCache, 8); // SrcHeight. encodeBuffer.encodeCachedValue(GetUINT(buffer + 30, bigEndian), 16, clientCache -> putImageHeightCache, 8); // DstX. x = GetUINT(buffer + 32, bigEndian); xDiff = x - clientCache -> putImageLastX; clientCache -> putImageLastX = x; encodeBuffer.encodeCachedValue(xDiff, 16, clientCache -> putImageXCache, 8); // DstY. y = GetUINT(buffer + 34, bigEndian); yDiff = y - clientCache -> putImageLastY; clientCache -> putImageLastY = y; encodeBuffer.encodeCachedValue(yDiff, 16, clientCache -> putImageYCache, 8); // DstWidth. encodeBuffer.encodeCachedValue(GetUINT(buffer + 36, bigEndian), 16, clientCache -> putImageWidthCache, 8); // DstHeight. encodeBuffer.encodeCachedValue(GetUINT(buffer + 38, bigEndian), 16, clientCache -> putImageHeightCache, 8); #ifdef DEBUG *logofs << name() << ": Encoded full message identity.\n" << logofs_flush; #endif return 1; } int PutPackedImageStore::decodeIdentity(DecodeBuffer &decodeBuffer, unsigned char *&buffer, unsigned int &size, int bigEndian, WriteBuffer *writeBuffer, ChannelCache *channelCache) const { ClientCache *clientCache = (ClientCache *) channelCache; #ifdef DEBUG *logofs << name() << ": Decoding full message identity.\n" << logofs_flush; #endif unsigned int value; unsigned char cValue; // Client. decodeBuffer.decodeCachedValue(cValue, 8, clientCache -> resourceCache); // Size. decodeBuffer.decodeValue(size, 16, 10); size <<= 2; buffer = writeBuffer -> addMessage(size); *(buffer + 1) = cValue; // Drawable. decodeBuffer.decodeXidValue(value, clientCache -> drawableCache); PutULONG(value, buffer + 4, bigEndian); // GC. decodeBuffer.decodeXidValue(value, clientCache -> gcCache); PutULONG(value, buffer + 8, bigEndian); // Method. decodeBuffer.decodeCachedValue(cValue, 8, clientCache -> methodCache); *(buffer + 12) = cValue; // Format. decodeBuffer.decodeValue(value, 2); *(buffer + 13) = value; // SrcDepth. decodeBuffer.decodeCachedValue(cValue, 8, clientCache -> depthCache); *(buffer + 14) = cValue; // DstDepth. decodeBuffer.decodeCachedValue(cValue, 8, clientCache -> depthCache); *(buffer + 15) = cValue; // SrcLength. decodeBuffer.decodeCachedValue(value, 24, clientCache -> putPackedImageSrcLengthCache); PutULONG(value, buffer + 16, bigEndian); // DstLength. decodeBuffer.decodeCachedValue(value, 24, clientCache -> putPackedImageDstLengthCache); PutULONG(value, buffer + 20, bigEndian); // SrcX. decodeBuffer.decodeCachedValue(value, 16, clientCache -> putImageXCache, 8); clientCache -> putImageLastX += value; clientCache -> putImageLastX &= 0xffff; PutUINT(clientCache -> putImageLastX, buffer + 24, bigEndian); // SrcY. decodeBuffer.decodeCachedValue(value, 16, clientCache -> putImageYCache, 8); clientCache -> putImageLastY += value; clientCache -> putImageLastY &= 0xffff; PutUINT(clientCache -> putImageLastY, buffer + 26, bigEndian); // SrcWidth. decodeBuffer.decodeCachedValue(value, 16, clientCache -> putImageWidthCache, 8); PutUINT(value, buffer + 28, bigEndian); // SrcHeight. decodeBuffer.decodeCachedValue(value, 16, clientCache -> putImageHeightCache, 8); PutUINT(value, buffer + 30, bigEndian); // DstX. decodeBuffer.decodeCachedValue(value, 16, clientCache -> putImageXCache, 8); clientCache -> putImageLastX += value; clientCache -> putImageLastX &= 0xffff; PutUINT(clientCache -> putImageLastX, buffer + 32, bigEndian); // DstY. decodeBuffer.decodeCachedValue(value, 16, clientCache -> putImageYCache, 8); clientCache -> putImageLastY += value; clientCache -> putImageLastY &= 0xffff; PutUINT(clientCache -> putImageLastY, buffer + 34, bigEndian); // DstWidth. decodeBuffer.decodeCachedValue(value, 16, clientCache -> putImageWidthCache, 8); PutUINT(value, buffer + 36, bigEndian); // DstHeight. decodeBuffer.decodeCachedValue(value, 16, clientCache -> putImageHeightCache, 8); PutUINT(value, buffer + 38, bigEndian); #ifdef DEBUG *logofs << name() << ": Decoded full message identity.\n" << logofs_flush; #endif return 1; } int PutPackedImageStore::parseIdentity(Message *message, const unsigned char *buffer, unsigned int size, int bigEndian) const { PutPackedImageMessage *putPackedImage = (PutPackedImageMessage *) message; // // Here is the fingerprint. // putPackedImage -> client = *(buffer + 1); putPackedImage -> drawable = GetULONG(buffer + 4, bigEndian); putPackedImage -> gcontext = GetULONG(buffer + 8, bigEndian); putPackedImage -> method = *(buffer + 12); putPackedImage -> format = *(buffer + 13); putPackedImage -> src_depth = *(buffer + 14); putPackedImage -> dst_depth = *(buffer + 15); putPackedImage -> src_length = GetULONG(buffer + 16, bigEndian); putPackedImage -> dst_length = GetULONG(buffer + 20, bigEndian); putPackedImage -> src_x = GetUINT(buffer + 24, bigEndian); putPackedImage -> src_y = GetUINT(buffer + 26, bigEndian); putPackedImage -> src_width = GetUINT(buffer + 28, bigEndian); putPackedImage -> src_height = GetUINT(buffer + 30, bigEndian); putPackedImage -> dst_x = GetUINT(buffer + 32, bigEndian); putPackedImage -> dst_y = GetUINT(buffer + 34, bigEndian); putPackedImage -> dst_width = GetUINT(buffer + 36, bigEndian); putPackedImage -> dst_height = GetUINT(buffer + 38, bigEndian); #ifdef DEBUG *logofs << name() << ": Parsed identity for message at " << message << ".\n" << logofs_flush; #endif return 1; } int PutPackedImageStore::unparseIdentity(const Message *message, unsigned char *buffer, unsigned int size, int bigEndian) const { PutPackedImageMessage *putPackedImage = (PutPackedImageMessage *) message; // // Fill all the message's fields. // *(buffer + 1) = putPackedImage -> client; PutULONG(putPackedImage -> drawable, buffer + 4, bigEndian); PutULONG(putPackedImage -> gcontext, buffer + 8, bigEndian); *(buffer + 12) = putPackedImage -> method; *(buffer + 13) = putPackedImage -> format; *(buffer + 14) = putPackedImage -> src_depth; *(buffer + 15) = putPackedImage -> dst_depth; PutULONG(putPackedImage -> src_length, buffer + 16, bigEndian); PutULONG(putPackedImage -> dst_length, buffer + 20, bigEndian); PutUINT(putPackedImage -> src_x, buffer + 24, bigEndian); PutUINT(putPackedImage -> src_y, buffer + 26, bigEndian); PutUINT(putPackedImage -> src_width, buffer + 28, bigEndian); PutUINT(putPackedImage -> src_height, buffer + 30, bigEndian); PutUINT(putPackedImage -> dst_x, buffer + 32, bigEndian); PutUINT(putPackedImage -> dst_y, buffer + 34, bigEndian); PutUINT(putPackedImage -> dst_width, buffer + 36, bigEndian); PutUINT(putPackedImage -> dst_height, buffer + 38, bigEndian); #ifdef DEBUG *logofs << name() << ": Unparsed identity for message at " << message << ".\n" << logofs_flush; #endif return 1; } void PutPackedImageStore::dumpIdentity(const Message *message) const { #ifdef DUMP PutPackedImageMessage *putPackedImage = (PutPackedImageMessage *) message; *logofs << name() << ": Identity format " << "drawable " << putPackedImage -> drawable << ", " << "gcontext " << putPackedImage -> gcontext << ", " << "format " << (unsigned int) putPackedImage -> format << ", " << "method " << (unsigned int) putPackedImage -> method << ", " << "src_depth " << (unsigned int) putPackedImage -> src_depth << ", " << "dst_depth " << (unsigned int) putPackedImage -> dst_depth << ", " << "src_length " << putPackedImage -> src_length << ", " << "dst_length " << putPackedImage -> dst_length << ", " << "src_x " << putPackedImage -> src_x << ", " << "src_y " << putPackedImage -> src_y << ", " << "src_width " << putPackedImage -> src_width << ", " << "src_height " << putPackedImage -> src_height << ", " << "dst_x " << putPackedImage -> dst_x << ", " << "dst_y " << putPackedImage -> dst_y << ", " << "dst_width " << putPackedImage -> dst_width << ", " << "dst_height " << putPackedImage -> dst_height << ", " << "size " << putPackedImage -> size_ << ".\n" << logofs_flush; #endif } void PutPackedImageStore::identityChecksum(const Message *message, const unsigned char *buffer, unsigned int size, int bigEndian) const { // // Fields method, format, src_depth, dst_depth, // src_length, dst_length, src_x, src_y, src_width, // src_height. // // // TODO: We should better investigate the effect of // having fields src_x and src_y in identity instead // of keeping them in differences. // md5_append(md5_state_, buffer + 12, 20); } void PutPackedImageStore::updateIdentity(EncodeBuffer &encodeBuffer, const Message *message, const Message *cachedMessage, ChannelCache *channelCache) const { // // Encode the variant part. // PutPackedImageMessage *putPackedImage = (PutPackedImageMessage *) message; PutPackedImageMessage *cachedPutPackedImage = (PutPackedImageMessage *) cachedMessage; ClientCache *clientCache = (ClientCache *) channelCache; #ifdef TEST *logofs << name() << ": Encoding value " << (unsigned int) putPackedImage -> client << " as client field.\n" << logofs_flush; #endif encodeBuffer.encodeCachedValue(putPackedImage -> client, 8, clientCache -> resourceCache); cachedPutPackedImage -> client = putPackedImage -> client; #ifdef TEST *logofs << name() << ": Encoding value " << putPackedImage -> drawable << " as drawable field.\n" << logofs_flush; #endif encodeBuffer.encodeXidValue(putPackedImage -> drawable, clientCache -> drawableCache); cachedPutPackedImage -> drawable = putPackedImage -> drawable; #ifdef TEST *logofs << name() << ": Encoding value " << putPackedImage -> gcontext << " as gcontext field.\n" << logofs_flush; #endif encodeBuffer.encodeXidValue(putPackedImage -> gcontext, clientCache -> gcCache); cachedPutPackedImage -> gcontext = putPackedImage -> gcontext; #ifdef TEST *logofs << name() << ": Encoding value " << putPackedImage -> dst_x << " as " << "dst_x" << " field.\n" << logofs_flush; #endif unsigned short int diff_x = putPackedImage -> dst_x - cachedPutPackedImage -> dst_x; encodeBuffer.encodeCachedValue(diff_x, 16, clientCache -> putImageXCache, 8); cachedPutPackedImage -> dst_x = putPackedImage -> dst_x; #ifdef TEST *logofs << name() << ": Encoding value " << putPackedImage -> dst_y << " as " << "dst_y" << " field.\n" << logofs_flush; #endif unsigned short int diff_y = putPackedImage -> dst_y - cachedPutPackedImage -> dst_y; encodeBuffer.encodeCachedValue(diff_y, 16, clientCache -> putImageYCache, 8); cachedPutPackedImage -> dst_y = putPackedImage -> dst_y; #ifdef TEST *logofs << name() << ": Encoding value " << putPackedImage -> dst_width << " as " << "dst_width" << " field.\n" << logofs_flush; #endif encodeBuffer.encodeCachedValue(putPackedImage -> dst_width, 16, clientCache -> putImageWidthCache, 8); cachedPutPackedImage -> dst_width = putPackedImage -> dst_width; #ifdef TEST *logofs << name() << ": Encoding value " << putPackedImage -> dst_height << " as " << "dst_height" << " field.\n" << logofs_flush; #endif encodeBuffer.encodeCachedValue(putPackedImage -> dst_height, 16, clientCache -> putImageHeightCache, 8); cachedPutPackedImage -> dst_height = putPackedImage -> dst_height; } void PutPackedImageStore::updateIdentity(DecodeBuffer &decodeBuffer, const Message *message, ChannelCache *channelCache) const { // // Decode the variant part. // PutPackedImageMessage *putPackedImage = (PutPackedImageMessage *) message; ClientCache *clientCache = (ClientCache *) channelCache; unsigned int value; decodeBuffer.decodeCachedValue(putPackedImage -> client, 8, clientCache -> resourceCache); #ifdef DEBUG *logofs << name() << ": Decoded value " << (unsigned int) putPackedImage -> client << " as client field.\n" << logofs_flush; #endif decodeBuffer.decodeXidValue(value, clientCache -> drawableCache); putPackedImage -> drawable = value; #ifdef DEBUG *logofs << name() << ": Decoded value " << putPackedImage -> drawable << " as drawable field.\n" << logofs_flush; #endif decodeBuffer.decodeXidValue(value, clientCache -> gcCache); putPackedImage -> gcontext = value; #ifdef DEBUG *logofs << name() << ": Decoded value " << putPackedImage -> gcontext << " as gcontext field.\n" << logofs_flush; #endif decodeBuffer.decodeCachedValue(value, 16, clientCache -> putImageXCache, 8); putPackedImage -> dst_x += value; putPackedImage -> dst_x &= 0xffff; #ifdef DEBUG *logofs << name() << ": Decoded value " << putPackedImage -> dst_x << " as dst_x field.\n" << logofs_flush; #endif decodeBuffer.decodeCachedValue(value, 16, clientCache -> putImageYCache, 8); putPackedImage -> dst_y += value; putPackedImage -> dst_y &= 0xffff; #ifdef DEBUG *logofs << name() << ": Decoded value " << putPackedImage -> dst_y << " as dst_y field.\n" << logofs_flush; #endif decodeBuffer.decodeCachedValue(value, 16, clientCache -> putImageWidthCache, 8); putPackedImage -> dst_width = value; #ifdef DEBUG *logofs << name() << ": Decoded value " << putPackedImage -> dst_width << " as dst_width field.\n" << logofs_flush; #endif decodeBuffer.decodeCachedValue(value, 16, clientCache -> putImageHeightCache, 8); putPackedImage -> dst_height = value; #ifdef DEBUG *logofs << name() << ": Decoded value " << putPackedImage -> dst_height << " as dst_height field.\n" << logofs_flush; #endif }