1 /*
2 ===============================================================================
3 
4   PROGRAMMERS:
5 
6     martin.isenburg@rapidlasso.com  -  http://rapidlasso.com
7     uday.karan@gmail.com - Hobu, Inc.
8 
9   COPYRIGHT:
10 
11     (c) 2007-2014, martin isenburg, rapidlasso - tools to catch reality
12     (c) 2014, Uday Verma, Hobu, Inc.
13 
14     This is free software; you can redistribute and/or modify it under the
15     terms of the GNU Lesser General Licence as published by the Free Software
16     Foundation. See the COPYING file for more information.
17 
18     This software is distributed WITHOUT ANY WARRANTY and without even the
19     implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
20 
21   CHANGE HISTORY:
22 
23 ===============================================================================
24 */
25 
26 namespace lazperf
27 {
28 namespace detail
29 {
30 
31 class Rgb10Base
32 {
33 protected:
34     Rgb10Base();
35 
36     bool have_last_;
37     las::rgb last;
38 
39     models::arithmetic m_byte_used;
40     models::arithmetic m_rgb_diff_0;
41     models::arithmetic m_rgb_diff_1;
42     models::arithmetic m_rgb_diff_2;
43     models::arithmetic m_rgb_diff_3;
44     models::arithmetic m_rgb_diff_4;
45     models::arithmetic m_rgb_diff_5;
46 };
47 
48 class Rgb10Compressor : public Rgb10Base
49 {
50 public:
51     Rgb10Compressor(encoders::arithmetic<OutCbStream>&);
52 
53     const char *compress(const char *buf);
54 
55 private:
56     encoders::arithmetic<OutCbStream>& enc_;
57 };
58 
59 class Rgb10Decompressor : public Rgb10Base
60 {
61 public:
62     Rgb10Decompressor(decoders::arithmetic<InCbStream>&);
63 
64     char *decompress(char *buf);
65 
66 private:
67     decoders::arithmetic<InCbStream>& dec_;
68 };
69 
70 } // namespace detail
71 } // namespace lazperf
72