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Diffstat (limited to 'nxcomp/PutPackedImage.h')
| -rw-r--r-- | nxcomp/PutPackedImage.h | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/nxcomp/PutPackedImage.h b/nxcomp/PutPackedImage.h new file mode 100644 index 000000000..5287a5b57 --- /dev/null +++ b/nxcomp/PutPackedImage.h @@ -0,0 +1,211 @@ +/**************************************************************************/ +/* */ +/* 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. */ +/* */ +/**************************************************************************/ + +#ifndef PutPackedImage_H +#define PutPackedImage_H + +#include "Message.h" + +// +// Set the verbosity level. +// + +#define PANIC +#define WARNING +#undef TEST +#undef DEBUG +#undef DUMP + +// +// Set default values. +// + +#define PUTPACKEDIMAGE_ENABLE_CACHE 1 +#define PUTPACKEDIMAGE_ENABLE_DATA 1 +#define PUTPACKEDIMAGE_ENABLE_SPLIT 1 +#define PUTPACKEDIMAGE_ENABLE_COMPRESS 0 + +// +// We can't exceed lenght of 262144 bytes. +// + +#define PUTPACKEDIMAGE_DATA_LIMIT 262144 - 40 +#define PUTPACKEDIMAGE_DATA_OFFSET 40 + +#define PUTPACKEDIMAGE_CACHE_SLOTS 6000 +#define PUTPACKEDIMAGE_CACHE_THRESHOLD 70 +#define PUTPACKEDIMAGE_CACHE_LOWER_THRESHOLD 50 + +#define PUTPACKEDIMAGE_CACHE_THRESHOLD_IF_PACKED_SHADOW 97 +#define PUTPACKEDIMAGE_CACHE_LOWER_THRESHOLD_IF_PACKED_SHADOW 90 + +#define PUTPACKEDIMAGE_ENABLE_SPLIT_IF_PROTO_STEP_8 0 + +// +// The message class. +// + +class PutPackedImageMessage : public Message +{ + friend class PutPackedImageStore; + + public: + + PutPackedImageMessage() + { + } + + ~PutPackedImageMessage() + { + } + + // + // Here are the fields which constitute + // the 'identity' part of the message. + // + + private: + + unsigned char client; + + unsigned int drawable; + unsigned int gcontext; + + unsigned char format; + unsigned char method; + + unsigned char src_depth; + unsigned char dst_depth; + + unsigned int src_length; + unsigned int dst_length; + + short int src_x; + short int src_y; + unsigned short src_width; + unsigned short src_height; + + short int dst_x; + short int dst_y; + unsigned short dst_width; + unsigned short dst_height; +}; + +class PutPackedImageStore : public MessageStore +{ + // + // Constructors and destructors. + // + + public: + + PutPackedImageStore(StaticCompressor *compressor); + + virtual ~PutPackedImageStore(); + + virtual const char *name() const + { + return "PutPackedImage"; + } + + virtual unsigned char opcode() const + { + return X_NXPutPackedImage; + } + + virtual unsigned int storage() const + { + return sizeof(PutPackedImageMessage); + } + + // + // Very special of this class. + // + + int getPackedSize(const int position) const + { + PutPackedImageMessage *message = (PutPackedImageMessage *) (*messages_)[position]; + + if (message == NULL) + { + return 0; + } + + return dataOffset + message -> src_length; + } + + int getUnpackedSize(const int position) const + { + PutPackedImageMessage *message = (PutPackedImageMessage *) (*messages_)[position]; + + if (message == NULL) + { + return 0; + } + + return dataOffset + message -> dst_length; + } + + // + // Message handling methods. + // + + protected: + + virtual Message *create() const + { + return new PutPackedImageMessage(); + } + + virtual Message *create(const Message &message) const + { + return new PutPackedImageMessage((const PutPackedImageMessage &) message); + } + + virtual void destroy(Message *message) const + { + delete (PutPackedImageMessage *) message; + } + + virtual int encodeIdentity(EncodeBuffer &encodeBuffer, const unsigned char *buffer, + const unsigned int size, int bigEndian, + ChannelCache *channelCache) const; + + virtual int decodeIdentity(DecodeBuffer &decodeBuffer, unsigned char *&buffer, + unsigned int &size, int bigEndian, WriteBuffer *writeBuffer, + ChannelCache *channelCache) const; + + virtual int parseIdentity(Message *message, const unsigned char *buffer, + unsigned int size, int bigEndian) const; + + virtual int unparseIdentity(const Message *message, unsigned char *buffer, + unsigned int size, int bigEndian) const; + + virtual void updateIdentity(EncodeBuffer &encodeBuffer, const Message *message, + const Message *cachedMessage, + ChannelCache *channelCache) const; + + virtual void updateIdentity(DecodeBuffer &decodeBuffer, const Message *message, + ChannelCache *channelCache) const; + + virtual void identityChecksum(const Message *message, const unsigned char *buffer, + unsigned int size, int bigEndian) const; + + virtual void dumpIdentity(const Message *message) const; +}; + +#endif /* PutPackedImage_H */ |