Mercurial > code
annotate pack.h @ 153:a6a7cd08be72
pack.c:
o added two new functions pack_fmtlen, pack_vfmtlen, compute the number
of bytes needed for format.
o added support for buffer, pack_swrite, pack_vswrite, pack_sread,
pack_vsread. Buffer will be automatically allocated for _write
functions.
| author | David Demelier <markand@malikania.fr> |
|---|---|
| date | Sun, 15 Jul 2012 20:40:54 +0200 |
| parents | 07800b7af208 |
| children | c7ad101ed4a1 |
| rev | line source |
|---|---|
| 56 | 1 /* |
| 98 | 2 * pack.h -- endian dependant binary file reader |
| 3 * | |
| 4 * Copyright (c) 2011, 2012, David Demelier <markand@malikania.fr> | |
| 56 | 5 * |
| 6 * Permission to use, copy, modify, and/or distribute this software for any | |
| 7 * purpose with or without fee is hereby granted, provided that the above | |
| 8 * copyright notice and this permission notice appear in all copies. | |
| 9 * | |
| 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
| 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
| 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
| 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
| 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
| 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
| 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
| 17 */ | |
| 18 | |
| 19 #ifndef _PACK_H_ | |
| 20 #define _PACK_H_ | |
| 21 | |
| 22 #include <stdarg.h> | |
| 153 | 23 #include <stdint.h> |
| 56 | 24 |
|
135
07800b7af208
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David Demelier <markand@malikania.fr>
parents:
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25 #ifdef __cplusplus |
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David Demelier <markand@malikania.fr>
parents:
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26 extern "C" { |
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David Demelier <markand@malikania.fr>
parents:
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27 #endif |
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07800b7af208
Huge cosmetic, no breakage
David Demelier <markand@malikania.fr>
parents:
99
diff
changeset
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28 |
| 56 | 29 /* |
| 30 * Endian detection based on SDL_endian.h | |
| 31 */ | |
| 32 | |
| 33 #undef PACK_HOST_BYTEORDER | |
| 34 | |
|
57
311eaa9d004c
Renamed pack_* fonction for our guidelines
David Demelier <markand@malikania.fr>
parents:
56
diff
changeset
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35 #define PACK_LE 1234 |
|
311eaa9d004c
Renamed pack_* fonction for our guidelines
David Demelier <markand@malikania.fr>
parents:
56
diff
changeset
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36 #define PACK_BE 4321 |
| 56 | 37 |
| 38 #if defined(__hppa__) || \ | |
| 39 defined(__m68k__) || defined(mc68000) || defined(_M_M68K) || \ | |
| 40 (defined(__MIPS__) && defined(__MISPEB__)) || \ | |
| 41 defined(__ppc__) || defined(__POWERPC__) || defined(_M_PPC) || \ | |
| 42 defined(__sparc__) | |
|
57
311eaa9d004c
Renamed pack_* fonction for our guidelines
David Demelier <markand@malikania.fr>
parents:
56
diff
changeset
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43 # define PACK_HOST_BYTEORDER PACK_BE |
| 56 | 44 #else |
|
57
311eaa9d004c
Renamed pack_* fonction for our guidelines
David Demelier <markand@malikania.fr>
parents:
56
diff
changeset
|
45 # define PACK_HOST_BYTEORDER PACK_LE |
| 56 | 46 #endif |
| 47 | |
| 48 #define pack_swap16(x) \ | |
| 49 ((((x) >> 8) & 0x00FFL) | (((x) << 8) & 0xFF00L)) | |
| 50 | |
| 51 #define pack_swap32(x) ((((x) >> 24) & 0x000000FFL) \ | |
| 52 | (((x) >> 8) & 0x0000FF00L) \ | |
| 53 | (((x) << 8) & 0x00FF0000L) \ | |
| 54 | (((x) << 24) & 0xFF000000L)) | |
| 55 | |
| 56 #define pack_swap64(x) (((uint64_t) \ | |
| 57 ((uint32_t) pack_swap32((uint32_t) (((x) << 32) >> 32))) << 32) \ | |
| 58 | (uint32_t) pack_swap32((uint32_t) ((x) >> 32))) | |
| 59 | |
| 153 | 60 size_t pack_fmtlen(int, const char *, ...); |
| 61 size_t pack_vfmtlen(int, const char *, va_list); | |
| 62 | |
| 63 int pack_swrite(int, uint8_t **, size_t *, const char *, ...); | |
| 64 int pack_vswrite(int, uint8_t **, size_t *, const char *, va_list); | |
|
57
311eaa9d004c
Renamed pack_* fonction for our guidelines
David Demelier <markand@malikania.fr>
parents:
56
diff
changeset
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65 int pack_write(int, const char *, const char *, ...); |
|
311eaa9d004c
Renamed pack_* fonction for our guidelines
David Demelier <markand@malikania.fr>
parents:
56
diff
changeset
|
66 int pack_vwrite(int, const char *, const char *, va_list); |
|
311eaa9d004c
Renamed pack_* fonction for our guidelines
David Demelier <markand@malikania.fr>
parents:
56
diff
changeset
|
67 int pack_fwrite(int, FILE *, const char *, ...); |
|
311eaa9d004c
Renamed pack_* fonction for our guidelines
David Demelier <markand@malikania.fr>
parents:
56
diff
changeset
|
68 int pack_vfwrite(int, FILE *, const char *, va_list); |
| 56 | 69 |
| 153 | 70 int pack_sread(int, uint8_t *, size_t, const char *, ...); |
| 71 int pack_vsread(int, uint8_t *, size_t, const char *, va_list); | |
|
57
311eaa9d004c
Renamed pack_* fonction for our guidelines
David Demelier <markand@malikania.fr>
parents:
56
diff
changeset
|
72 int pack_read(int, const char *, const char *, ...); |
|
311eaa9d004c
Renamed pack_* fonction for our guidelines
David Demelier <markand@malikania.fr>
parents:
56
diff
changeset
|
73 int pack_vread(int, const char *, const char *, va_list); |
|
311eaa9d004c
Renamed pack_* fonction for our guidelines
David Demelier <markand@malikania.fr>
parents:
56
diff
changeset
|
74 int pack_fread(int, FILE *, const char *, ...); |
|
311eaa9d004c
Renamed pack_* fonction for our guidelines
David Demelier <markand@malikania.fr>
parents:
56
diff
changeset
|
75 int pack_vfread(int, FILE *, const char *, va_list); |
| 56 | 76 |
|
135
07800b7af208
Huge cosmetic, no breakage
David Demelier <markand@malikania.fr>
parents:
99
diff
changeset
|
77 #ifdef __cplusplus |
|
07800b7af208
Huge cosmetic, no breakage
David Demelier <markand@malikania.fr>
parents:
99
diff
changeset
|
78 } |
|
07800b7af208
Huge cosmetic, no breakage
David Demelier <markand@malikania.fr>
parents:
99
diff
changeset
|
79 #endif |
|
07800b7af208
Huge cosmetic, no breakage
David Demelier <markand@malikania.fr>
parents:
99
diff
changeset
|
80 |
| 56 | 81 #endif /* _PACK_H_ */ |