/src/ffmpeg/libavutil/bswap.h
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1 | | /* |
2 | | * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> |
3 | | * |
4 | | * This file is part of FFmpeg. |
5 | | * |
6 | | * FFmpeg is free software; you can redistribute it and/or |
7 | | * modify it under the terms of the GNU Lesser General Public |
8 | | * License as published by the Free Software Foundation; either |
9 | | * version 2.1 of the License, or (at your option) any later version. |
10 | | * |
11 | | * FFmpeg is distributed in the hope that it will be useful, |
12 | | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 | | * Lesser General Public License for more details. |
15 | | * |
16 | | * You should have received a copy of the GNU Lesser General Public |
17 | | * License along with FFmpeg; if not, write to the Free Software |
18 | | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
19 | | */ |
20 | | |
21 | | /** |
22 | | * @file |
23 | | * byte swapping routines |
24 | | */ |
25 | | |
26 | | #ifndef AVUTIL_BSWAP_H |
27 | | #define AVUTIL_BSWAP_H |
28 | | |
29 | | #include <stdint.h> |
30 | | #include "libavutil/avconfig.h" |
31 | | #include "attributes.h" |
32 | | |
33 | | #ifdef HAVE_AV_CONFIG_H |
34 | | |
35 | | #include "config.h" |
36 | | |
37 | | #if ARCH_ARM |
38 | | # include "arm/bswap.h" |
39 | | #elif ARCH_RISCV |
40 | | # include "riscv/bswap.h" |
41 | | #elif ARCH_X86 |
42 | | # include "x86/bswap.h" |
43 | | #endif |
44 | | |
45 | | #endif /* HAVE_AV_CONFIG_H */ |
46 | | |
47 | 0 | #define AV_BSWAP16C(x) (((x) << 8 & 0xff00) | ((x) >> 8 & 0x00ff)) |
48 | 0 | #define AV_BSWAP32C(x) (AV_BSWAP16C(x) << 16 | AV_BSWAP16C((x) >> 16)) |
49 | | #define AV_BSWAP64C(x) (AV_BSWAP32C(x) << 32 | AV_BSWAP32C((x) >> 32)) |
50 | | |
51 | | #define AV_BSWAPC(s, x) AV_BSWAP##s##C(x) |
52 | | |
53 | | #ifndef av_bswap16 |
54 | | static av_always_inline av_const uint16_t av_bswap16(uint16_t x) |
55 | 0 | { |
56 | 0 | x= (x>>8) | (x<<8); |
57 | 0 | return x; |
58 | 0 | } Unexecuted instantiation: swscale.c:av_bswap16 Unexecuted instantiation: utils.c:av_bswap16 Unexecuted instantiation: vscale.c:av_bswap16 Unexecuted instantiation: hscale_fast_bilinear_simd.c:av_bswap16 Unexecuted instantiation: yuv2rgb.c:av_bswap16 Unexecuted instantiation: alphablend.c:av_bswap16 Unexecuted instantiation: graph.c:av_bswap16 Unexecuted instantiation: hscale_fast_bilinear.c:av_bswap16 Unexecuted instantiation: input.c:av_bswap16 Unexecuted instantiation: ops.c:av_bswap16 Unexecuted instantiation: ops_backend.c:av_bswap16 Unexecuted instantiation: ops_optimizer.c:av_bswap16 Unexecuted instantiation: options.c:av_bswap16 Unexecuted instantiation: output.c:av_bswap16 Unexecuted instantiation: rgb2rgb.c:av_bswap16 Unexecuted instantiation: slice.c:av_bswap16 Unexecuted instantiation: swscale_unscaled.c:av_bswap16 Unexecuted instantiation: gamma.c:av_bswap16 Unexecuted instantiation: hscale.c:av_bswap16 Unexecuted instantiation: avformat.c:av_bswap16 Unexecuted instantiation: demux.c:av_bswap16 Unexecuted instantiation: demux_utils.c:av_bswap16 Unexecuted instantiation: id3v2.c:av_bswap16 Unexecuted instantiation: aviobuf.c:av_bswap16 Unexecuted instantiation: decode.c:av_bswap16 Unexecuted instantiation: encode.c:av_bswap16 Unexecuted instantiation: exif.c:av_bswap16 Unexecuted instantiation: tiff_common.c:av_bswap16 Unexecuted instantiation: crc.c:av_bswap16 Unexecuted instantiation: imgutils.c:av_bswap16 Unexecuted instantiation: mem.c:av_bswap16 Unexecuted instantiation: pixdesc.c:av_bswap16 Unexecuted instantiation: random_seed.c:av_bswap16 Unexecuted instantiation: sha.c:av_bswap16 |
59 | | #endif |
60 | | |
61 | | #ifndef av_bswap32 |
62 | | static av_always_inline av_const uint32_t av_bswap32(uint32_t x) |
63 | 0 | { |
64 | 0 | return AV_BSWAP32C(x); |
65 | 0 | } Unexecuted instantiation: swscale.c:av_bswap32 Unexecuted instantiation: utils.c:av_bswap32 Unexecuted instantiation: vscale.c:av_bswap32 Unexecuted instantiation: hscale_fast_bilinear_simd.c:av_bswap32 Unexecuted instantiation: yuv2rgb.c:av_bswap32 Unexecuted instantiation: alphablend.c:av_bswap32 Unexecuted instantiation: graph.c:av_bswap32 Unexecuted instantiation: hscale_fast_bilinear.c:av_bswap32 Unexecuted instantiation: input.c:av_bswap32 Unexecuted instantiation: ops.c:av_bswap32 Unexecuted instantiation: ops_backend.c:av_bswap32 Unexecuted instantiation: ops_optimizer.c:av_bswap32 Unexecuted instantiation: options.c:av_bswap32 Unexecuted instantiation: output.c:av_bswap32 Unexecuted instantiation: rgb2rgb.c:av_bswap32 Unexecuted instantiation: slice.c:av_bswap32 Unexecuted instantiation: swscale_unscaled.c:av_bswap32 Unexecuted instantiation: gamma.c:av_bswap32 Unexecuted instantiation: hscale.c:av_bswap32 Unexecuted instantiation: avformat.c:av_bswap32 Unexecuted instantiation: demux.c:av_bswap32 Unexecuted instantiation: demux_utils.c:av_bswap32 Unexecuted instantiation: id3v2.c:av_bswap32 Unexecuted instantiation: aviobuf.c:av_bswap32 Unexecuted instantiation: decode.c:av_bswap32 Unexecuted instantiation: encode.c:av_bswap32 Unexecuted instantiation: exif.c:av_bswap32 Unexecuted instantiation: tiff_common.c:av_bswap32 Unexecuted instantiation: crc.c:av_bswap32 Unexecuted instantiation: imgutils.c:av_bswap32 Unexecuted instantiation: mem.c:av_bswap32 Unexecuted instantiation: pixdesc.c:av_bswap32 Unexecuted instantiation: random_seed.c:av_bswap32 Unexecuted instantiation: sha.c:av_bswap32 |
66 | | #endif |
67 | | |
68 | | #ifndef av_bswap64 |
69 | | static inline uint64_t av_const av_bswap64(uint64_t x) |
70 | 0 | { |
71 | 0 | return (uint64_t)av_bswap32(x) << 32 | av_bswap32(x >> 32); |
72 | 0 | } Unexecuted instantiation: swscale.c:av_bswap64 Unexecuted instantiation: utils.c:av_bswap64 Unexecuted instantiation: vscale.c:av_bswap64 Unexecuted instantiation: hscale_fast_bilinear_simd.c:av_bswap64 Unexecuted instantiation: yuv2rgb.c:av_bswap64 Unexecuted instantiation: alphablend.c:av_bswap64 Unexecuted instantiation: graph.c:av_bswap64 Unexecuted instantiation: hscale_fast_bilinear.c:av_bswap64 Unexecuted instantiation: input.c:av_bswap64 Unexecuted instantiation: ops.c:av_bswap64 Unexecuted instantiation: ops_backend.c:av_bswap64 Unexecuted instantiation: ops_optimizer.c:av_bswap64 Unexecuted instantiation: options.c:av_bswap64 Unexecuted instantiation: output.c:av_bswap64 Unexecuted instantiation: rgb2rgb.c:av_bswap64 Unexecuted instantiation: slice.c:av_bswap64 Unexecuted instantiation: swscale_unscaled.c:av_bswap64 Unexecuted instantiation: gamma.c:av_bswap64 Unexecuted instantiation: hscale.c:av_bswap64 Unexecuted instantiation: avformat.c:av_bswap64 Unexecuted instantiation: demux.c:av_bswap64 Unexecuted instantiation: demux_utils.c:av_bswap64 Unexecuted instantiation: id3v2.c:av_bswap64 Unexecuted instantiation: aviobuf.c:av_bswap64 Unexecuted instantiation: decode.c:av_bswap64 Unexecuted instantiation: encode.c:av_bswap64 Unexecuted instantiation: exif.c:av_bswap64 Unexecuted instantiation: tiff_common.c:av_bswap64 Unexecuted instantiation: crc.c:av_bswap64 Unexecuted instantiation: imgutils.c:av_bswap64 Unexecuted instantiation: mem.c:av_bswap64 Unexecuted instantiation: pixdesc.c:av_bswap64 Unexecuted instantiation: random_seed.c:av_bswap64 Unexecuted instantiation: sha.c:av_bswap64 |
73 | | #endif |
74 | | |
75 | | // be2ne ... big-endian to native-endian |
76 | | // le2ne ... little-endian to native-endian |
77 | | |
78 | | #if AV_HAVE_BIGENDIAN |
79 | | #define av_be2ne16(x) (x) |
80 | | #define av_be2ne32(x) (x) |
81 | | #define av_be2ne64(x) (x) |
82 | | #define av_le2ne16(x) av_bswap16(x) |
83 | | #define av_le2ne32(x) av_bswap32(x) |
84 | | #define av_le2ne64(x) av_bswap64(x) |
85 | | #define AV_BE2NEC(s, x) (x) |
86 | | #define AV_LE2NEC(s, x) AV_BSWAPC(s, x) |
87 | | #else |
88 | | #define av_be2ne16(x) av_bswap16(x) |
89 | | #define av_be2ne32(x) av_bswap32(x) |
90 | 0 | #define av_be2ne64(x) av_bswap64(x) |
91 | | #define av_le2ne16(x) (x) |
92 | 0 | #define av_le2ne32(x) (x) |
93 | | #define av_le2ne64(x) (x) |
94 | | #define AV_BE2NEC(s, x) AV_BSWAPC(s, x) |
95 | | #define AV_LE2NEC(s, x) (x) |
96 | | #endif |
97 | | |
98 | | #define AV_BE2NE16C(x) AV_BE2NEC(16, x) |
99 | | #define AV_BE2NE32C(x) AV_BE2NEC(32, x) |
100 | | #define AV_BE2NE64C(x) AV_BE2NEC(64, x) |
101 | | #define AV_LE2NE16C(x) AV_LE2NEC(16, x) |
102 | | #define AV_LE2NE32C(x) AV_LE2NEC(32, x) |
103 | | #define AV_LE2NE64C(x) AV_LE2NEC(64, x) |
104 | | |
105 | | #endif /* AVUTIL_BSWAP_H */ |