aboutsummaryrefslogtreecommitdiff
path: root/nxcomp/FillPoly.h
blob: 142ce43c61b1a0ed08531580a4866c2238348726 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
/**************************************************************************/
/*                                                                        */
/* 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 FillPoly_H
#define FillPoly_H

#include "Message.h"

//
// Set the verbosity level.
//

#define PANIC
#define WARNING
#undef  TEST
#undef  DEBUG
#undef  DUMP

//
// Set default values.
//

#define FILLPOLY_ENABLE_CACHE               1
#define FILLPOLY_ENABLE_DATA                0
#define FILLPOLY_ENABLE_SPLIT               0
#define FILLPOLY_ENABLE_COMPRESS            0

#define FILLPOLY_DATA_LIMIT                 512
#define FILLPOLY_DATA_OFFSET                16

#define FILLPOLY_CACHE_SLOTS                2000
#define FILLPOLY_CACHE_THRESHOLD            3
#define FILLPOLY_CACHE_LOWER_THRESHOLD      1

#define FILLPOLY_DATA_OFFSET_IF_PROTO_STEP_8    20

//
// The message class.
//

class FillPolyMessage : public Message
{
  friend class FillPolyStore;

  public:

  FillPolyMessage()
  {
  }

  ~FillPolyMessage()
  {
  }

  //
  // Put here the fields which constitute 
  // the 'identity' part of the message.
  //

  private:

  unsigned char shape;
  unsigned char mode;
  unsigned int  drawable;
  unsigned int  gcontext;

  unsigned short x_origin;
  unsigned short y_origin;
};

class FillPolyStore : public MessageStore
{
  //
  // Constructors and destructors.
  //

  public:

  FillPolyStore() : MessageStore()
  {
    enableCache    = FILLPOLY_ENABLE_CACHE;
    enableData     = FILLPOLY_ENABLE_DATA;
    enableSplit    = FILLPOLY_ENABLE_SPLIT;
    enableCompress = FILLPOLY_ENABLE_COMPRESS;

    dataLimit  = FILLPOLY_DATA_LIMIT;
    dataOffset = FILLPOLY_DATA_OFFSET;

    if (control -> isProtoStep8() == 1)
    {
      dataOffset = FILLPOLY_DATA_OFFSET_IF_PROTO_STEP_8;
    }

    cacheSlots          = FILLPOLY_CACHE_SLOTS;
    cacheThreshold      = FILLPOLY_CACHE_THRESHOLD;
    cacheLowerThreshold = FILLPOLY_CACHE_LOWER_THRESHOLD;

    messages_ -> resize(cacheSlots);

    for (T_messages::iterator i = messages_ -> begin();
             i < messages_ -> end(); i++)
    {
      *i = NULL;
    }

    temporary_ = NULL;
  }

  virtual ~FillPolyStore()
  {
    for (T_messages::iterator i = messages_ -> begin();
             i < messages_ -> end(); i++)
    {
      destroy(*i);
    }

    destroy(temporary_);
  }

  virtual const char *name() const
  {
    return "FillPoly";
  }

  virtual unsigned char opcode() const
  {
    return X_FillPoly;
  }

  virtual unsigned int storage() const
  {
    return sizeof(FillPolyMessage);
  }

  //
  // Message handling methods.
  //

  public:

  virtual Message *create() const
  {
    return new FillPolyMessage();
  }

  virtual Message *create(const Message &message) const
  {
    return new FillPolyMessage((const FillPolyMessage &) message);
  }

  virtual void destroy(Message *message) const
  {
    delete (FillPolyMessage *) message;
  }

  virtual int identitySize(const unsigned char *buffer, unsigned int size)
  {
    unsigned int offset = (control -> isProtoStep8() == 1 ?
                               FILLPOLY_DATA_OFFSET_IF_PROTO_STEP_8 :
                                   FILLPOLY_DATA_OFFSET);

    return (size >= offset ? offset : size);
  }

  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 /* FillPoly_H */