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/**************************************************************************/
/* */
/* Copyright (c) 2001, 2007 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 NoMachine S.r.l. */
/* */
/* 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 */
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