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Diffstat (limited to 'nxcomp/src/RenderExtension.cpp')
| -rw-r--r-- | nxcomp/src/RenderExtension.cpp | 427 |
1 files changed, 427 insertions, 0 deletions
diff --git a/nxcomp/src/RenderExtension.cpp b/nxcomp/src/RenderExtension.cpp new file mode 100644 index 000000000..64761bc05 --- /dev/null +++ b/nxcomp/src/RenderExtension.cpp @@ -0,0 +1,427 @@ +/**************************************************************************/ +/* */ +/* 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. */ +/* */ +/**************************************************************************/ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "NXrender.h" + +#include "ClientCache.h" + +#include "EncodeBuffer.h" +#include "DecodeBuffer.h" + +#include "WriteBuffer.h" + +#include "RenderExtension.h" + +#include "RenderGenericRequest.h" +#include "RenderCreatePicture.h" +#include "RenderChangePicture.h" +#include "RenderFreePicture.h" +#include "RenderPictureClip.h" +#include "RenderPictureTransform.h" +#include "RenderPictureFilter.h" +#include "RenderCreateGlyphSet.h" +#include "RenderFreeGlyphSet.h" +#include "RenderAddGlyphs.h" +#include "RenderComposite.h" +#include "RenderCompositeGlyphs.h" +#include "RenderFillRectangles.h" +#include "RenderTrapezoids.h" +#include "RenderTriangles.h" + +// +// Set the verbosity level. +// + +#define PANIC +#define WARNING +#undef TEST +#undef DEBUG + +// +// Constructor and destructor. +// + +RenderExtensionStore::RenderExtensionStore(StaticCompressor *compressor) + + : MessageStore(compressor) +{ + enableCache = RENDEREXTENSION_ENABLE_CACHE; + enableData = RENDEREXTENSION_ENABLE_DATA; + enableSplit = RENDEREXTENSION_ENABLE_SPLIT; + enableCompress = RENDEREXTENSION_ENABLE_COMPRESS; + + generic_ = new RenderGenericRequestStore(); + + for (int i = 0; i < RENDEREXTENSION_MINOR_OPCODE_LIMIT; i++) + { + minors_[i] = generic_; + } + + minors_[X_RenderChangePicture] = new RenderChangePictureStore(); + minors_[X_RenderFillRectangles] = new RenderFillRectanglesStore(); + minors_[X_RenderAddGlyphs] = new RenderAddGlyphsStore(); + + // Since ProtoStep7 (#issue 108) + minors_[X_RenderCreatePicture] = new RenderCreatePictureStore(); + minors_[X_RenderFreePicture] = new RenderFreePictureStore(); + minors_[X_RenderSetPictureClipRectangles] = new RenderPictureClipStore(); + minors_[X_RenderCreateGlyphSet] = new RenderCreateGlyphSetStore(); + minors_[X_RenderComposite] = new RenderCompositeStore(); + minors_[X_RenderCompositeGlyphs8] = new RenderCompositeGlyphsStore(); + minors_[X_RenderCompositeGlyphs16] = new RenderCompositeGlyphsStore(); + minors_[X_RenderCompositeGlyphs32] = new RenderCompositeGlyphsStore(); + + minors_[X_RenderSetPictureTransform] = new RenderPictureTransformStore(); + minors_[X_RenderSetPictureFilter] = new RenderPictureFilterStore(); + minors_[X_RenderFreeGlyphSet] = new RenderFreeGlyphSetStore(); + minors_[X_RenderTrapezoids] = new RenderTrapezoidsStore(); + minors_[X_RenderTriangles] = new RenderTrianglesStore(); + + dataLimit = RENDEREXTENSION_DATA_LIMIT; + dataOffset = RENDEREXTENSION_DATA_OFFSET; + + // Since ProtoStep7 (#issue 108) + cacheSlots = RENDEREXTENSION_CACHE_SLOTS_IF_PROTO_STEP_7; + + cacheThreshold = RENDEREXTENSION_CACHE_THRESHOLD; + cacheLowerThreshold = RENDEREXTENSION_CACHE_LOWER_THRESHOLD; + + opcode_ = X_NXInternalRenderExtension; + + messages_ -> resize(cacheSlots); + + for (T_messages::iterator i = messages_ -> begin(); + i < messages_ -> end(); i++) + { + *i = NULL; + } + + temporary_ = NULL; +} + +RenderExtensionStore::~RenderExtensionStore() +{ + for (int i = 0; i < RENDEREXTENSION_MINOR_OPCODE_LIMIT; i++) + { + if (minors_[i] != generic_) + { + delete minors_[i]; + } + } + + delete generic_; + + for (T_messages::iterator i = messages_ -> begin(); + i < messages_ -> end(); i++) + { + destroy(*i); + } + + destroy(temporary_); +} + +int RenderExtensionStore::validateMessage(const unsigned char *buffer, int size) +{ + #ifdef TEST + *logofs << name() << ": Encoding message OPCODE#" + << (unsigned) *buffer << " MINOR#" << (unsigned) + *(buffer + 1) << " with size " << size + << ".\n" << logofs_flush; + #endif + + return (size >= control -> MinimumMessageSize && + size <= control -> MaximumMessageSize); +} + +// +// Here are the methods to handle the messages' content. +// + +int RenderExtensionStore::identitySize(const unsigned char *buffer, unsigned int size) +{ + return minors_[*(buffer + 1)] -> identitySize(buffer, size); +} + +int RenderExtensionStore::encodeIdentity(EncodeBuffer &encodeBuffer, const unsigned char *buffer, + const unsigned int size, int bigEndian, + ChannelCache *channelCache) const +{ + encodeBuffer.encodeOpcodeValue(*(buffer + 1), + ((ClientCache *) channelCache) -> renderOpcodeCache); + + minors_[*(buffer + 1)] -> encodeMessage(encodeBuffer, buffer, size, + bigEndian, channelCache); + + return 1; +} + +int RenderExtensionStore::decodeIdentity(DecodeBuffer &decodeBuffer, unsigned char *&buffer, + unsigned int &size, int bigEndian, WriteBuffer *writeBuffer, + ChannelCache *channelCache) const +{ + unsigned char type; + + decodeBuffer.decodeOpcodeValue(type, + ((ClientCache *) channelCache) -> renderOpcodeCache); + + minors_[type] -> decodeMessage(decodeBuffer, buffer, size, type, + bigEndian, writeBuffer, channelCache); + + return 1; +} + +int RenderExtensionStore::parseIdentity(Message *message, const unsigned char *buffer, + unsigned int size, int bigEndian) const +{ + return minors_[*(buffer + 1)] -> parseIdentity(message, buffer, size, bigEndian); +} + +int RenderExtensionStore::unparseIdentity(const Message *message, unsigned char *buffer, + unsigned int size, int bigEndian) const +{ + return minors_[((RenderExtensionMessage *) message) -> data.any.type] -> + unparseIdentity(message, buffer, size, bigEndian); +} + +void RenderExtensionStore::identityChecksum(const Message *message, const unsigned char *buffer, + unsigned int size, int bigEndian) const +{ + minors_[*(buffer + 1)] -> identityChecksum(message, buffer, size, md5_state_, bigEndian); +} + +void RenderExtensionStore::updateIdentity(EncodeBuffer &encodeBuffer, const Message *message, + const Message *cachedMessage, + ChannelCache *channelCache) const +{ + minors_[((RenderExtensionMessage *) message) -> data.any.type] -> + updateIdentity(encodeBuffer, message, cachedMessage, channelCache); +} + +void RenderExtensionStore::updateIdentity(DecodeBuffer &decodeBuffer, const Message *message, + ChannelCache *channelCache) const +{ + minors_[((RenderExtensionMessage *) message) -> data.any.type] -> + updateIdentity(decodeBuffer, message, channelCache); +} + +void RenderExtensionStore::dumpIdentity(const Message *message) const +{ + #ifdef DUMP + + #ifdef WARNING + *logofs << name() << ": WARNING! Dump of identity not implemented.\n" + << logofs_flush; + #endif + + #endif +} + +// +// TODO: The following encoding and decoding functions +// could be generalized further, for example by passing +// the pointer to the data cache, the number of caches +// made available by the caller and the first cache to +// iterate through. +// + +void RenderMinorExtensionStore::encodeLongData(EncodeBuffer &encodeBuffer, const unsigned char *buffer, + unsigned int offset, unsigned int size, int bigEndian, + ChannelCache *channelCache) const +{ + // Since ProtoStep7 (#issue 108) + encodeBuffer.encodeLongData(buffer + offset, size - offset); + + #ifdef TEST + *logofs << name() << ": Encoded " << size - offset + << " bytes of long data.\n" << logofs_flush; + #endif +} + +void RenderMinorExtensionStore::encodeIntData(EncodeBuffer &encodeBuffer, const unsigned char *buffer, + unsigned int offset, unsigned int size, int bigEndian, + ChannelCache *channelCache) const +{ + // Since ProtoStep7 (#issue 108) + encodeBuffer.encodeIntData(buffer + offset, size - offset); + + #ifdef TEST + *logofs << name() << ": Encoded " << size - offset + << " bytes of int data.\n" << logofs_flush; + #endif +} + +void RenderMinorExtensionStore::encodeCharData(EncodeBuffer &encodeBuffer, const unsigned char *buffer, + unsigned int offset, unsigned int size, int bigEndian, + ChannelCache *channelCache) const +{ + // Since ProtoStep7 (#issue 108) + encodeBuffer.encodeTextData(buffer + offset, size - offset); + + #ifdef TEST + *logofs << name() << ": Encoded " << size - offset + << " bytes of text data.\n" << logofs_flush; + #endif +} + +void RenderMinorExtensionStore::decodeLongData(DecodeBuffer &decodeBuffer, unsigned char *buffer, + unsigned int offset, unsigned int size, int bigEndian, + ChannelCache *channelCache) const +{ + // Since ProtoStep7 (#issue 108) + decodeBuffer.decodeLongData(buffer + offset, size - offset); + + #ifdef TEST + *logofs << name() << ": Decoded " << size - offset + << " bytes of long data.\n" << logofs_flush; + #endif +} + +void RenderMinorExtensionStore::decodeIntData(DecodeBuffer &decodeBuffer, unsigned char *buffer, + unsigned int offset, unsigned int size, int bigEndian, + ChannelCache *channelCache) const +{ + // Since ProtoStep7 (#issue 108) + decodeBuffer.decodeIntData(buffer + offset, size - offset); + + #ifdef TEST + *logofs << name() << ": Decoded " << size - offset + << " bytes of int data.\n" << logofs_flush; + #endif +} + +void RenderMinorExtensionStore::decodeCharData(DecodeBuffer &decodeBuffer, unsigned char *buffer, + unsigned int offset, unsigned int size, int bigEndian, + ChannelCache *channelCache) const +{ + // Since ProtoStep7 (#issue 108) + decodeBuffer.decodeTextData(buffer + offset, size - offset); + + #ifdef TEST + *logofs << name() << ": Decoded " << size - offset + << " bytes of text data.\n" << logofs_flush; + #endif +} + +void RenderMinorExtensionStore::parseIntData(const Message *message, const unsigned char *buffer, + unsigned int offset, unsigned int size, + int bigEndian) const +{ + RenderExtensionMessage *renderExtension = (RenderExtensionMessage *) message; + + unsigned int last = ((unsigned) message -> i_size_ > size ? size : message -> i_size_); + + for (unsigned int i = offset, c = (offset - 4) % 16; i < last; i += 2) + { + #ifdef DEBUG + *logofs << name() << ": Parsing int with i = " << i << " c = " + << c << ".\n" << logofs_flush; + #endif + + renderExtension -> data.any.short_data[c] = GetUINT(buffer + i, bigEndian); + + if (++c == 16) c = 0; + } +} + +void RenderMinorExtensionStore::unparseIntData(const Message *message, unsigned char *buffer, + unsigned int offset, unsigned int size, + int bigEndian) const +{ + RenderExtensionMessage *renderExtension = (RenderExtensionMessage *) message; + + unsigned int last = ((unsigned) message -> i_size_ > size ? size : message -> i_size_); + + for (unsigned int i = offset, c = (offset - 4) % 16; i < last; i += 2) + { + #ifdef DEBUG + *logofs << name() << ": Unparsing int with i = " << i << " c = " + << c << ".\n" << logofs_flush; + #endif + + PutUINT(renderExtension -> data.any.short_data[c], buffer + i, bigEndian); + + if (++c == 16) c = 0; + } +} + +void RenderMinorExtensionStore::updateIntData(EncodeBuffer &encodeBuffer, const Message *message, + const Message *cachedMessage, unsigned int offset, + unsigned int size, ChannelCache *channelCache) const +{ + RenderExtensionMessage *renderExtension = (RenderExtensionMessage *) message; + RenderExtensionMessage *cachedRenderExtension = (RenderExtensionMessage *) cachedMessage; + + ClientCache *clientCache = (ClientCache *) channelCache; + + unsigned int last = ((unsigned) message -> i_size_ > size ? size : message -> i_size_); + + for (unsigned int i = offset, c = (offset - 4) % 16; i < last; i += 2) + { + #ifdef DEBUG + *logofs << name() << ": Encoding int update with i = " << i + << " c = " << c << ".\n" << logofs_flush; + #endif + + encodeBuffer.encodeCachedValue(renderExtension -> data.any.short_data[c], 16, + *clientCache -> renderDataCache[c]); + + cachedRenderExtension -> data.any.short_data[c] = + renderExtension -> data.any.short_data[c]; + + if (++c == 16) c = 0; + } +} + +void RenderMinorExtensionStore::updateIntData(DecodeBuffer &decodeBuffer, const Message *message, + unsigned int offset, unsigned int size, + ChannelCache *channelCache) const +{ + RenderExtensionMessage *renderExtension = (RenderExtensionMessage *) message; + + ClientCache *clientCache = (ClientCache *) channelCache; + + unsigned int last = ((unsigned) message -> i_size_ > size ? size : message -> i_size_); + + unsigned int value; + + for (unsigned int i = offset, c = (offset - 4) % 16; i < last; i += 2) + { + #ifdef DEBUG + *logofs << name() << ": Decoding int update with i = " << i + << " c = " << c << ".\n" << logofs_flush; + #endif + + decodeBuffer.decodeCachedValue(value, 16, + *clientCache -> renderDataCache[c]); + + renderExtension -> data.any.short_data[c] = value; + + if (++c == 16) c = 0; + } +} |