Open Lighting Architecture: libs/acn/DMPHeader.h Source File

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DMPHeader.h
1/*
2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License as published by
4 * the Free Software Foundation; either version 2 of the License, or
5 * (at your option) any later version.
6 *
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU Library General Public License for more details.
11 *
12 * You should have received a copy of the GNU General Public License
13 * along with this program; if not, write to the Free Software
14 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
15 *
16 * DMPHeader.h
17 * The DMP Header
18 * Copyright (C) 2007 Simon Newton
19 */
20
21#ifndef LIBS_ACN_DMPHEADER_H_
22#define LIBS_ACN_DMPHEADER_H_
23
24#include <stdint.h>
25#include "libs/acn/DMPAddress.h"
26
27namespace ola {
28namespace acn {
29
30/*
31 * Header for the DMP layer
32 */
33 class DMPHeader {
34 public:
35 static const unsigned int DMP_HEADER_SIZE = 1;
36
37 explicit DMPHeader(uint8_t header = 0): m_header(header) {}
38
39 DMPHeader(bool is_virtual,
40 bool is_relative,
41 dmp_address_type type,
42 dmp_address_size size) {
43 m_header = (uint8_t) (is_virtual << 7 |
44 is_relative << 6 |
45 type << 4 |
46 size);
47 }
48 ~DMPHeader() {}
49
50 bool IsVirtual() const { return m_header & VIRTUAL_MASK; }
51 bool IsRelative() const { return m_header & RELATIVE_MASK; }
52
53 dmp_address_type Type() const {
54 return (dmp_address_type) ((m_header & TYPE_MASK) >> 4);
55 }
56
57 dmp_address_size Size() const {
58 return (dmp_address_size) (m_header & SIZE_MASK);
59 }
60
61 unsigned int Bytes() const { return DMPSizeToByteSize(Size()); }
62
63 bool operator==(const DMPHeader &other) const {
64 return m_header == other.m_header;
65 }
66
67 bool operator!=(const DMPHeader &other) const {
68 return m_header != other.m_header;
69 }
70
71 uint8_t Header() const { return m_header; }
72
73 private:
74 static const uint8_t VIRTUAL_MASK = 0x80;
75 static const uint8_t RELATIVE_MASK = 0x40;
76 static const uint8_t TYPE_MASK = 0x30;
77 static const uint8_t SIZE_MASK = 0x03;
78 uint8_t m_header;
79};
80} // namespace acn
81} // namespace ola
82#endif // LIBS_ACN_DMPHEADER_H_
ola::acn
ACN related code.
ola
The namespace containing all OLA symbols.
Definition Credentials.cpp:44