AJA NTV2 SDK  17.1.3.1410
NTV2 SDK 17.1.3.1410
ntv2endian.h
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1 /* SPDX-License-Identifier: MIT */
8 #ifndef NTV2ENDIAN_H
9 #define NTV2ENDIAN_H
10 
11 #include "ajatypes.h"
12 
13 // unconditional endian byte swap
14 
15 #define NTV2EndianSwap16(__val__) \
16  ( ((UWord(__val__)<<8) & 0xFF00) | \
17  ((UWord(__val__)>>8) & 0x00FF) )
18 
19 #define NTV2EndianSwap32(__val__) \
20  ( ((ULWord(__val__)<<24) & 0xFF000000) | \
21  ((ULWord(__val__)<< 8) & 0x00FF0000) | \
22  ((ULWord(__val__)>> 8) & 0x0000FF00) | \
23  ((ULWord(__val__)>>24) & 0x000000FF) )
24 
25 #define NTV2EndianSwap64(__val__) \
26  ( ((ULWord64(__val__)<<56) & 0xFF00000000000000ULL) | \
27  ((ULWord64(__val__)<<40) & 0x00FF000000000000ULL) | \
28  ((ULWord64(__val__)<<24) & 0x0000FF0000000000ULL) | \
29  ((ULWord64(__val__)<< 8) & 0x000000FF00000000ULL) | \
30  ((ULWord64(__val__)>> 8) & 0x00000000FF000000ULL) | \
31  ((ULWord64(__val__)>>24) & 0x0000000000FF0000ULL) | \
32  ((ULWord64(__val__)>>40) & 0x000000000000FF00ULL) | \
33  ((ULWord64(__val__)>>56) & 0x00000000000000FFULL) )
34 
35 
36 #if AJATargetBigEndian // BigEndian (BE) target host
37 
38  #define NTV2HostIsBigEndian (true)
39 
40  // BigEndian-to-host (NetworkByteOrder-to-host) (native)
41  #define NTV2EndianSwap16BtoH(__val__) (__val__)
42  #define NTV2EndianSwap16HtoB(__val__) (__val__)
43  #define NTV2EndianSwap32BtoH(__val__) (__val__)
44  #define NTV2EndianSwap32HtoB(__val__) (__val__)
45  #define NTV2EndianSwap64BtoH(__val__) (__val__)
46  #define NTV2EndianSwap64HtoB(__val__) (__val__)
47 
48  // LittleEndian-to-host (translate)
49  #define NTV2EndianSwap16LtoH(__val__) NTV2EndianSwap16(__val__)
50  #define NTV2EndianSwap16HtoL(__val__) NTV2EndianSwap16(__val__)
51  #define NTV2EndianSwap32LtoH(__val__) NTV2EndianSwap32(__val__)
52  #define NTV2EndianSwap32HtoL(__val__) NTV2EndianSwap32(__val__)
53  #define NTV2EndianSwap64LtoH(__val__) NTV2EndianSwap64(__val__)
54  #define NTV2EndianSwap64HtoL(__val__) NTV2EndianSwap64(__val__)
55 
56 #else // LittleEndian (LE) target host
57 
58  #define NTV2HostIsBigEndian (false)
59 
60  // BigEndian-to-host (NetworkByteOrder-to-host) (translate)
61  #define NTV2EndianSwap16BtoH(__val__) NTV2EndianSwap16(__val__)
62  #define NTV2EndianSwap16HtoB(__val__) NTV2EndianSwap16(__val__)
63  #define NTV2EndianSwap32BtoH(__val__) NTV2EndianSwap32(__val__)
64  #define NTV2EndianSwap32HtoB(__val__) NTV2EndianSwap32(__val__)
65  #define NTV2EndianSwap64BtoH(__val__) NTV2EndianSwap64(__val__)
66  #define NTV2EndianSwap64HtoB(__val__) NTV2EndianSwap64(__val__)
67 
68  // LittleEndian-to-host (native)
69  #define NTV2EndianSwap16LtoH(__val__) (__val__)
70  #define NTV2EndianSwap16HtoL(__val__) (__val__)
71  #define NTV2EndianSwap32LtoH(__val__) (__val__)
72  #define NTV2EndianSwap32HtoL(__val__) (__val__)
73  #define NTV2EndianSwap64LtoH(__val__) (__val__)
74  #define NTV2EndianSwap64HtoL(__val__) (__val__)
75 
76 #endif
77 
78 #endif // NTV2ENDIAN_H
ajatypes.h
Declares the most fundamental data types used by NTV2. Since Windows NT was the first principal devel...