/usr/include/mupdf/fitz/system.h is in libmupdf-dev 1.12.0+ds1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 | #ifndef MUPDF_FITZ_SYSTEM_H
#define MUPDF_FITZ_SYSTEM_H
/* Turn on valgrind pacification in debug builds. */
#ifndef NDEBUG
#ifndef PACIFY_VALGRIND
#define PACIFY_VALGRIND
#endif
#endif
/*
Include the standard libc headers.
*/
#include <stddef.h> /* needed for size_t */
#include <stdarg.h> /* needed for va_list vararg functions */
#include <setjmp.h> /* needed for the try/catch macros */
#if defined(_MSC_VER) && (_MSC_VER < 1700) /* MSVC older than VS2012 */
typedef signed char int8_t;
typedef short int int16_t;
typedef int int32_t;
typedef __int64 int64_t;
typedef unsigned char uint8_t;
typedef unsigned short int uint16_t;
typedef unsigned int uint32_t;
typedef unsigned __int64 uint64_t;
#else
#include <stdint.h> /* needed for int64_t */
#endif
#include "mupdf/memento.h"
#include "mupdf/fitz/track-usage.h"
#define nelem(x) (sizeof(x)/sizeof((x)[0]))
#define FZ_PI 3.14159265f
#define FZ_RADIAN 57.2957795f
#define FZ_DEGREE 0.017453292f
#define FZ_SQRT2 1.41421356f
#define FZ_LN2 0.69314718f
/*
Spot architectures where we have optimisations.
*/
#if defined(__arm__) || defined(__thumb__)
#ifndef ARCH_ARM
#define ARCH_ARM
#endif
#endif
/*
Some differences in libc can be smoothed over
*/
#ifdef __APPLE__
#define HAVE_SIGSETJMP
#elif defined(__unix) && !defined(__NACL__)
#define HAVE_SIGSETJMP
#endif
/*
Where possible (i.e. on platforms on which they are provided), use
sigsetjmp/siglongjmp in preference to setjmp/longjmp. We don't alter
signal handlers within mupdf, so there is no need for us to
store/restore them - hence we use the non-restoring variants. This
makes a large speed difference on MacOSX (and probably other
platforms too.
*/
#ifdef HAVE_SIGSETJMP
#define fz_setjmp(BUF) sigsetjmp(BUF, 0)
#define fz_longjmp(BUF,VAL) siglongjmp(BUF, VAL)
#define fz_jmp_buf sigjmp_buf
#else
#define fz_setjmp(BUF) setjmp(BUF)
#define fz_longjmp(BUF,VAL) longjmp(BUF,VAL)
#define fz_jmp_buf jmp_buf
#endif
/* these constants mirror the corresponding macros in stdio.h */
#ifndef EOF
#define EOF (-1)
#endif
#ifndef SEEK_SET
#define SEEK_SET 0
#endif
#ifndef SEEK_CUR
#define SEEK_CUR 1
#endif
#ifndef SEEK_END
#define SEEK_END 2
#endif
#ifdef _MSC_VER /* Microsoft Visual C */
/* MSVC up to VS2012 */
#if _MSC_VER < 1800
static __inline int signbit(double x)
{
union
{
double d;
__int64 i;
} u;
u.d = x;
return (int)(u.i>>63);
}
#endif
#pragma warning( disable: 4244 ) /* conversion from X to Y, possible loss of data */
#pragma warning( disable: 4701 ) /* Potentially uninitialized local variable 'name' used */
#pragma warning( disable: 4996 ) /* 'function': was declared deprecated */
#if _MSC_VER <= 1700 /* MSVC 2012 */
#define isnan(x) _isnan(x)
#define isinf(x) (!_finite(x))
#endif
#define hypotf _hypotf
#define atoll _atoi64
char *fz_utf8_from_wchar(const wchar_t *s);
wchar_t *fz_wchar_from_utf8(const char *s);
/* really a FILE* but we don't want to include stdio.h here */
void *fz_fopen_utf8(const char *name, const char *mode);
int fz_remove_utf8(const char *name);
char **fz_argv_from_wargv(int argc, wchar_t **wargv);
void fz_free_argv(int argc, char **argv);
#endif
/* Cope with systems (such as Windows) with no S_ISDIR */
#ifndef S_ISDIR
#define S_ISDIR(mode) ((mode) & S_IFDIR)
#endif
/* inline is standard in C++. For some compilers we can enable it within C too. */
#ifndef __cplusplus
#if __STDC_VERSION__ == 199901L /* C99 */
#elif _MSC_VER >= 1500 /* MSVC 9 or newer */
#define inline __inline
#elif __GNUC__ >= 3 /* GCC 3 or newer */
#define inline __inline
#else /* Unknown or ancient */
#define inline
#endif
#endif
/* restrict is standard in C99, but not in all C++ compilers. */
#if __STDC_VERSION__ == 199901L /* C99 */
#elif _MSC_VER >= 1500 /* MSVC 9 or newer */
#define restrict __restrict
#elif __GNUC__ >= 3 /* GCC 3 or newer */
#define restrict __restrict
#else /* Unknown or ancient */
#define restrict
#endif
/* noreturn is a GCC extension */
#ifdef __GNUC__
#define FZ_NORETURN __attribute__((noreturn))
#else
#ifdef _MSC_VER
#define FZ_NORETURN __declspec(noreturn)
#else
#define FZ_NORETURN
#endif
#endif
/* Flag unused parameters, for use with 'static inline' functions in headers. */
#if __GNUC__ > 2 || __GNUC__ == 2 && __GNUC_MINOR__ >= 7
#define FZ_UNUSED __attribute__((__unused__))
#else
#define FZ_UNUSED
#endif
/* GCC can do type checking of printf strings */
#ifndef __printflike
#if __GNUC__ > 2 || __GNUC__ == 2 && __GNUC_MINOR__ >= 7
#define __printflike(fmtarg, firstvararg) \
__attribute__((__format__ (__printf__, fmtarg, firstvararg)))
#else
#define __printflike(fmtarg, firstvararg)
#endif
#endif
/* ARM assembly specific defines */
#ifdef ARCH_ARM
/* If we're compiling as thumb code, then we need to tell the compiler
* to enter and exit ARM mode around our assembly sections. If we move
* the ARM functions to a separate file and arrange for it to be compiled
* without thumb mode, we can save some time on entry.
*/
/* This is slightly suboptimal; __thumb__ and __thumb2__ become defined
* and undefined by #pragma arm/#pragma thumb - but we can't define a
* macro to track that. */
#if defined(__thumb__) || defined(__thumb2__)
#define ENTER_ARM ".balign 4\nmov r12,pc\nbx r12\n0:.arm\n"
#define ENTER_THUMB "9:.thumb\n"
#else
#define ENTER_ARM
#define ENTER_THUMB
#endif
#endif
#ifdef CLUSTER
/* Include this first so our defines don't clash with the system definitions */
#include <math.h>
/*
* Trig functions
*/
static float
my_atan_table[258] =
{
0.0000000000f, 0.00390623013f,0.00781234106f,0.0117182136f,
0.0156237286f, 0.0195287670f, 0.0234332099f, 0.0273369383f,
0.0312398334f, 0.0351417768f, 0.0390426500f, 0.0429423347f,
0.0468407129f, 0.0507376669f, 0.0546330792f, 0.0585268326f,
0.0624188100f, 0.0663088949f, 0.0701969711f, 0.0740829225f,
0.0779666338f, 0.0818479898f, 0.0857268758f, 0.0896031775f,
0.0934767812f, 0.0973475735f, 0.1012154420f, 0.1050802730f,
0.1089419570f, 0.1128003810f, 0.1166554350f, 0.1205070100f,
0.1243549950f, 0.1281992810f, 0.1320397620f, 0.1358763280f,
0.1397088740f, 0.1435372940f, 0.1473614810f, 0.1511813320f,
0.1549967420f, 0.1588076080f, 0.1626138290f, 0.1664153010f,
0.1702119250f, 0.1740036010f, 0.1777902290f, 0.1815717110f,
0.1853479500f, 0.1891188490f, 0.1928843120f, 0.1966442450f,
0.2003985540f, 0.2041471450f, 0.2078899270f, 0.2116268090f,
0.2153577000f, 0.2190825110f, 0.2228011540f, 0.2265135410f,
0.2302195870f, 0.2339192060f, 0.2376123140f, 0.2412988270f,
0.2449786630f, 0.2486517410f, 0.2523179810f, 0.2559773030f,
0.2596296290f, 0.2632748830f, 0.2669129880f, 0.2705438680f,
0.2741674510f, 0.2777836630f, 0.2813924330f, 0.2849936890f,
0.2885873620f, 0.2921733830f, 0.2957516860f, 0.2993222020f,
0.3028848680f, 0.3064396190f, 0.3099863910f, 0.3135251230f,
0.3170557530f, 0.3205782220f, 0.3240924700f, 0.3275984410f,
0.3310960770f, 0.3345853220f, 0.3380661230f, 0.3415384250f,
0.3450021770f, 0.3484573270f, 0.3519038250f, 0.3553416220f,
0.3587706700f, 0.3621909220f, 0.3656023320f, 0.3690048540f,
0.3723984470f, 0.3757830650f, 0.3791586690f, 0.3825252170f,
0.3858826690f, 0.3892309880f, 0.3925701350f, 0.3959000740f,
0.3992207700f, 0.4025321870f, 0.4058342930f, 0.4091270550f,
0.4124104420f, 0.4156844220f, 0.4189489670f, 0.4222040480f,
0.4254496370f, 0.4286857080f, 0.4319122350f, 0.4351291940f,
0.4383365600f, 0.4415343100f, 0.4447224240f, 0.4479008790f,
0.4510696560f, 0.4542287350f, 0.4573780990f, 0.4605177290f,
0.4636476090f, 0.4667677240f, 0.4698780580f, 0.4729785980f,
0.4760693300f, 0.4791502430f, 0.4822213240f, 0.4852825630f,
0.4883339510f, 0.4913754780f, 0.4944071350f, 0.4974289160f,
0.5004408130f, 0.5034428210f, 0.5064349340f, 0.5094171490f,
0.5123894600f, 0.5153518660f, 0.5183043630f, 0.5212469510f,
0.5241796290f, 0.5271023950f, 0.5300152510f, 0.5329181980f,
0.5358112380f, 0.5386943730f, 0.5415676050f, 0.5444309400f,
0.5472843810f, 0.5501279330f, 0.5529616020f, 0.5557853940f,
0.5585993150f, 0.5614033740f, 0.5641975770f, 0.5669819340f,
0.5697564530f, 0.5725211450f, 0.5752760180f, 0.5780210840f,
0.5807563530f, 0.5834818390f, 0.5861975510f, 0.5889035040f,
0.5915997100f, 0.5942861830f, 0.5969629370f, 0.5996299860f,
0.6022873460f, 0.6049350310f, 0.6075730580f, 0.6102014430f,
0.6128202020f, 0.6154293530f, 0.6180289120f, 0.6206188990f,
0.6231993300f, 0.6257702250f, 0.6283316020f, 0.6308834820f,
0.6334258830f, 0.6359588250f, 0.6384823300f, 0.6409964180f,
0.6435011090f, 0.6459964250f, 0.6484823880f, 0.6509590190f,
0.6534263410f, 0.6558843770f, 0.6583331480f, 0.6607726790f,
0.6632029930f, 0.6656241120f, 0.6680360620f, 0.6704388650f,
0.6728325470f, 0.6752171330f, 0.6775926450f, 0.6799591110f,
0.6823165550f, 0.6846650020f, 0.6870044780f, 0.6893350100f,
0.6916566220f, 0.6939693410f, 0.6962731940f, 0.6985682070f,
0.7008544080f, 0.7031318220f, 0.7054004770f, 0.7076604000f,
0.7099116190f, 0.7121541600f, 0.7143880520f, 0.7166133230f,
0.7188300000f, 0.7210381110f, 0.7232376840f, 0.7254287490f,
0.7276113330f, 0.7297854640f, 0.7319511710f, 0.7341084830f,
0.7362574290f, 0.7383980370f, 0.7405303370f, 0.7426543560f,
0.7447701260f, 0.7468776740f, 0.7489770290f, 0.7510682220f,
0.7531512810f, 0.7552262360f, 0.7572931160f, 0.7593519510f,
0.7614027700f, 0.7634456020f, 0.7654804790f, 0.7675074280f,
0.7695264800f, 0.7715376650f, 0.7735410110f, 0.7755365500f,
0.7775243100f, 0.7795043220f, 0.7814766150f, 0.7834412190f,
0.7853981630f, 0.7853981630f /* Extended by 1 for interpolation */
};
static inline float my_sinf(float x)
{
float x2, xn;
int i;
/* Map x into the -PI to PI range. We could do this using:
* x = fmodf(x, 2.0f * FZ_PI);
* but that's C99, and seems to misbehave with negative numbers
* on some platforms. */
x -= FZ_PI;
i = x / (2.0f * FZ_PI);
x -= i * 2.0f * FZ_PI;
if (x < 0.0f)
x += 2.0f * FZ_PI;
x -= FZ_PI;
if (x <= -FZ_PI / 2.0f)
x = -FZ_PI - x;
else if (x >= FZ_PI / 2.0f)
x = FZ_PI-x;
x2 = x * x;
xn = x * x2 / 6.0f;
x -= xn;
xn *= x2 / 20.0f;
x += xn;
xn *= x2 / 42.0f;
x -= xn;
xn *= x2 / 72.0f;
x += xn;
return x;
}
static inline float my_atan2f(float o, float a)
{
int negate = 0, flip = 0, i;
float r, s;
if (o == 0.0f)
{
if (a > 0)
return 0.0f;
else
return FZ_PI;
}
if (o < 0)
o = -o, negate = 1;
if (a < 0)
a = -a, flip = 1;
if (o < a)
i = 65536.0f * o / a + 0.5f;
else
i = 65536.0f * a / o + 0.5f;
r = my_atan_table[i >> 8];
s = my_atan_table[(i >> 8) + 1];
r += (s - r) * (i & 255) / 256.0f;
if (o >= a)
r = FZ_PI / 2.0f - r;
if (flip)
r = FZ_PI - r;
if (negate)
r = -r;
return r;
}
#define sinf(x) my_sinf(x)
#define cosf(x) my_sinf(FZ_PI / 2.0f + (x))
#define atan2f(x,y) my_atan2f((x),(y))
#endif
#endif
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