1 /***************************************************************************/ 2 /* */ 3 /* ftconfig.h */ 4 /* */ 5 /* ANSI-specific configuration file (specification only). */ 6 /* */ 7 /* Copyright 1996-2016 by */ 8 /* David Turner, Robert Wilhelm, and Werner Lemberg. */ 9 /* */ 10 /* This file is part of the FreeType project, and may only be used, */ 11 /* modified, and distributed under the terms of the FreeType project */ 12 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ 13 /* this file you indicate that you have read the license and */ 14 /* understand and accept it fully. */ 15 /* */ 16 /***************************************************************************/ 17 18 19 /*************************************************************************/ 20 /* */ 21 /* This header file contains a number of macro definitions that are used */ 22 /* by the rest of the engine. Most of the macros here are automatically */ 23 /* determined at compile time, and you should not need to change it to */ 24 /* port FreeType, except to compile the library with a non-ANSI */ 25 /* compiler. */ 26 /* */ 27 /* Note however that if some specific modifications are needed, we */ 28 /* advise you to place a modified copy in your build directory. */ 29 /* */ 30 /* The build directory is usually `builds/<system>', and contains */ 31 /* system-specific files that are always included first when building */ 32 /* the library. */ 33 /* */ 34 /* This ANSI version should stay in `include/config/'. */ 35 /* */ 36 /*************************************************************************/ 37 38 #ifndef FTCONFIG_H_ 39 #define FTCONFIG_H_ 40 41 #include <ft2build.h> 42 #include FT_CONFIG_OPTIONS_H 43 #include FT_CONFIG_STANDARD_LIBRARY_H 44 45 46 FT_BEGIN_HEADER 47 48 49 /*************************************************************************/ 50 /* */ 51 /* PLATFORM-SPECIFIC CONFIGURATION MACROS */ 52 /* */ 53 /* These macros can be toggled to suit a specific system. The current */ 54 /* ones are defaults used to compile FreeType in an ANSI C environment */ 55 /* (16bit compilers are also supported). Copy this file to your own */ 56 /* `builds/<system>' directory, and edit it to port the engine. */ 57 /* */ 58 /*************************************************************************/ 59 60 61 /* There are systems (like the Texas Instruments 'C54x) where a `char' */ 62 /* has 16 bits. ANSI C says that sizeof(char) is always 1. Since an */ 63 /* `int' has 16 bits also for this system, sizeof(int) gives 1 which */ 64 /* is probably unexpected. */ 65 /* */ 66 /* `CHAR_BIT' (defined in limits.h) gives the number of bits in a */ 67 /* `char' type. */ 68 69 #ifndef FT_CHAR_BIT 70 #define FT_CHAR_BIT CHAR_BIT 71 #endif 72 73 74 /* The size of an `int' type. */ 75 #if FT_UINT_MAX == 0xFFFFUL 76 #define FT_SIZEOF_INT (16 / FT_CHAR_BIT) 77 #elif FT_UINT_MAX == 0xFFFFFFFFUL 78 #define FT_SIZEOF_INT (32 / FT_CHAR_BIT) 79 #elif FT_UINT_MAX > 0xFFFFFFFFUL && FT_UINT_MAX == 0xFFFFFFFFFFFFFFFFUL 80 #define FT_SIZEOF_INT (64 / FT_CHAR_BIT) 81 #else 82 #error "Unsupported size of `int' type!" 83 #endif 84 85 /* The size of a `long' type. A five-byte `long' (as used e.g. on the */ 86 /* DM642) is recognized but avoided. */ 87 #if FT_ULONG_MAX == 0xFFFFFFFFUL 88 #define FT_SIZEOF_LONG (32 / FT_CHAR_BIT) 89 #elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFUL 90 #define FT_SIZEOF_LONG (32 / FT_CHAR_BIT) 91 #elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFFFFFFFUL 92 #define FT_SIZEOF_LONG (64 / FT_CHAR_BIT) 93 #else 94 #error "Unsupported size of `long' type!" 95 #endif 96 97 98 /* FT_UNUSED is a macro used to indicate that a given parameter is not */ 99 /* used -- this is only used to get rid of unpleasant compiler warnings */ 100 #ifndef FT_UNUSED 101 #define FT_UNUSED( arg ) ( (arg) = (arg) ) 102 #endif 103 104 105 /*************************************************************************/ 106 /* */ 107 /* AUTOMATIC CONFIGURATION MACROS */ 108 /* */ 109 /* These macros are computed from the ones defined above. Don't touch */ 110 /* their definition, unless you know precisely what you are doing. No */ 111 /* porter should need to mess with them. */ 112 /* */ 113 /*************************************************************************/ 114 115 116 /*************************************************************************/ 117 /* */ 118 /* Mac support */ 119 /* */ 120 /* This is the only necessary change, so it is defined here instead */ 121 /* providing a new configuration file. */ 122 /* */ 123 #if defined( __APPLE__ ) || ( defined( __MWERKS__ ) && defined( macintosh ) ) 124 /* no Carbon frameworks for 64bit 10.4.x */ 125 /* AvailabilityMacros.h is available since Mac OS X 10.2, */ 126 /* so guess the system version by maximum errno before inclusion */ 127 #include <errno.h> 128 #ifdef ECANCELED /* defined since 10.2 */ 129 #include "AvailabilityMacros.h" 130 #endif 131 #if defined( __LP64__ ) && \ 132 ( MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_4 ) 133 #undef FT_MACINTOSH 134 #endif 135 136 #elif defined( __SC__ ) || defined( __MRC__ ) 137 /* Classic MacOS compilers */ 138 #include "ConditionalMacros.h" 139 #if TARGET_OS_MAC 140 #define FT_MACINTOSH 1 141 #endif 142 143 #endif 144 145 146 /*************************************************************************/ 147 /* */ 148 /* <Section> */ 149 /* basic_types */ 150 /* */ 151 /*************************************************************************/ 152 153 154 /*************************************************************************/ 155 /* */ 156 /* <Type> */ 157 /* FT_Int16 */ 158 /* */ 159 /* <Description> */ 160 /* A typedef for a 16bit signed integer type. */ 161 /* */ 162 typedef signed short FT_Int16; 163 164 165 /*************************************************************************/ 166 /* */ 167 /* <Type> */ 168 /* FT_UInt16 */ 169 /* */ 170 /* <Description> */ 171 /* A typedef for a 16bit unsigned integer type. */ 172 /* */ 173 typedef unsigned short FT_UInt16; 174 175 /* */ 176 177 178 /* this #if 0 ... #endif clause is for documentation purposes */ 179 #if 0 180 181 /*************************************************************************/ 182 /* */ 183 /* <Type> */ 184 /* FT_Int32 */ 185 /* */ 186 /* <Description> */ 187 /* A typedef for a 32bit signed integer type. The size depends on */ 188 /* the configuration. */ 189 /* */ 190 typedef signed XXX FT_Int32; 191 192 193 /*************************************************************************/ 194 /* */ 195 /* <Type> */ 196 /* FT_UInt32 */ 197 /* */ 198 /* A typedef for a 32bit unsigned integer type. The size depends on */ 199 /* the configuration. */ 200 /* */ 201 typedef unsigned XXX FT_UInt32; 202 203 204 /*************************************************************************/ 205 /* */ 206 /* <Type> */ 207 /* FT_Int64 */ 208 /* */ 209 /* A typedef for a 64bit signed integer type. The size depends on */ 210 /* the configuration. Only defined if there is real 64bit support; */ 211 /* otherwise, it gets emulated with a structure (if necessary). */ 212 /* */ 213 typedef signed XXX FT_Int64; 214 215 216 /*************************************************************************/ 217 /* */ 218 /* <Type> */ 219 /* FT_UInt64 */ 220 /* */ 221 /* A typedef for a 64bit unsigned integer type. The size depends on */ 222 /* the configuration. Only defined if there is real 64bit support; */ 223 /* otherwise, it gets emulated with a structure (if necessary). */ 224 /* */ 225 typedef unsigned XXX FT_UInt64; 226 227 /* */ 228 229 #endif 230 231 #if FT_SIZEOF_INT == (32 / FT_CHAR_BIT) 232 233 typedef signed int FT_Int32; 234 typedef unsigned int FT_UInt32; 235 236 #elif FT_SIZEOF_LONG == (32 / FT_CHAR_BIT) 237 238 typedef signed long FT_Int32; 239 typedef unsigned long FT_UInt32; 240 241 #else 242 #error "no 32bit type found -- please check your configuration files" 243 #endif 244 245 246 /* look up an integer type that is at least 32 bits */ 247 #if FT_SIZEOF_INT >= (32 / FT_CHAR_BIT) 248 249 typedef int FT_Fast; 250 typedef unsigned int FT_UFast; 251 252 #elif FT_SIZEOF_LONG >= (32 / FT_CHAR_BIT) 253 254 typedef long FT_Fast; 255 typedef unsigned long FT_UFast; 256 257 #endif 258 259 260 /* determine whether we have a 64-bit int type for platforms without */ 261 /* Autoconf */ 262 #if FT_SIZEOF_LONG == (64 / FT_CHAR_BIT) 263 264 /* FT_LONG64 must be defined if a 64-bit type is available */ 265 #define FT_LONG64 266 #define FT_INT64 long 267 #define FT_UINT64 unsigned long 268 269 /*************************************************************************/ 270 /* */ 271 /* A 64-bit data type may create compilation problems if you compile */ 272 /* in strict ANSI mode. To avoid them, we disable other 64-bit data */ 273 /* types if __STDC__ is defined. You can however ignore this rule */ 274 /* by defining the FT_CONFIG_OPTION_FORCE_INT64 configuration macro. */ 275 /* */ 276 #elif !defined( __STDC__ ) || defined( FT_CONFIG_OPTION_FORCE_INT64 ) 277 278 #if defined( __STDC_VERSION__ ) && __STDC_VERSION__ >= 199901L 279 280 #define FT_LONG64 281 #define FT_INT64 long long int 282 #define FT_UINT64 unsigned long long int 283 284 #elif defined( _MSC_VER ) && _MSC_VER >= 900 /* Visual C++ (and Intel C++) */ 285 286 /* this compiler provides the __int64 type */ 287 #define FT_LONG64 288 #define FT_INT64 __int64 289 #define FT_UINT64 unsigned __int64 290 291 #elif defined( __BORLANDC__ ) /* Borland C++ */ 292 293 /* XXXX: We should probably check the value of __BORLANDC__ in order */ 294 /* to test the compiler version. */ 295 296 /* this compiler provides the __int64 type */ 297 #define FT_LONG64 298 #define FT_INT64 __int64 299 #define FT_UINT64 unsigned __int64 300 301 #elif defined( __WATCOMC__ ) /* Watcom C++ */ 302 303 /* Watcom doesn't provide 64-bit data types */ 304 305 #elif defined( __MWERKS__ ) /* Metrowerks CodeWarrior */ 306 307 #define FT_LONG64 308 #define FT_INT64 long long int 309 #define FT_UINT64 unsigned long long int 310 311 #elif defined( __GNUC__ ) 312 313 /* GCC provides the `long long' type */ 314 #define FT_LONG64 315 #define FT_INT64 long long int 316 #define FT_UINT64 unsigned long long int 317 318 #endif /* __STDC_VERSION__ >= 199901L */ 319 320 #endif /* FT_SIZEOF_LONG == (64 / FT_CHAR_BIT) */ 321 322 #ifdef FT_LONG64 323 typedef FT_INT64 FT_Int64; 324 typedef FT_UINT64 FT_UInt64; 325 #endif 326 327 328 /*************************************************************************/ 329 /* */ 330 /* miscellaneous */ 331 /* */ 332 /*************************************************************************/ 333 334 335 #define FT_BEGIN_STMNT do { 336 #define FT_END_STMNT } while ( 0 ) 337 #define FT_DUMMY_STMNT FT_BEGIN_STMNT FT_END_STMNT 338 339 340 /* typeof condition taken from gnulib's `intprops.h' header file */ 341 #if ( __GNUC__ >= 2 || \ 342 defined( __IBM__TYPEOF__ ) || \ 343 ( __SUNPRO_C >= 0x5110 && !__STDC__ ) ) 344 #define FT_TYPEOF( type ) (__typeof__ (type)) 345 #else 346 #define FT_TYPEOF( type ) /* empty */ 347 #endif 348 349 350 #ifdef FT_MAKE_OPTION_SINGLE_OBJECT 351 352 #define FT_LOCAL( x ) static x 353 #define FT_LOCAL_DEF( x ) static x 354 355 #else 356 357 #ifdef __cplusplus 358 #define FT_LOCAL( x ) extern "C" x 359 #define FT_LOCAL_DEF( x ) extern "C" x 360 #else 361 #define FT_LOCAL( x ) extern x 362 #define FT_LOCAL_DEF( x ) x 363 #endif 364 365 #endif /* FT_MAKE_OPTION_SINGLE_OBJECT */ 366 367 #define FT_LOCAL_ARRAY( x ) extern const x 368 #define FT_LOCAL_ARRAY_DEF( x ) const x 369 370 371 #ifndef FT_BASE 372 373 #ifdef __cplusplus 374 #define FT_BASE( x ) extern "C" x 375 #else 376 #define FT_BASE( x ) extern x 377 #endif 378 379 #endif /* !FT_BASE */ 380 381 382 #ifndef FT_BASE_DEF 383 384 #ifdef __cplusplus 385 #define FT_BASE_DEF( x ) x 386 #else 387 #define FT_BASE_DEF( x ) x 388 #endif 389 390 #endif /* !FT_BASE_DEF */ 391 392 393 #ifndef FT_EXPORT 394 395 #ifdef __cplusplus 396 #define FT_EXPORT( x ) extern "C" x 397 #else 398 #define FT_EXPORT( x ) extern x 399 #endif 400 401 #endif /* !FT_EXPORT */ 402 403 404 #ifndef FT_EXPORT_DEF 405 406 #ifdef __cplusplus 407 #define FT_EXPORT_DEF( x ) extern "C" x 408 #else 409 #define FT_EXPORT_DEF( x ) extern x 410 #endif 411 412 #endif /* !FT_EXPORT_DEF */ 413 414 415 #ifndef FT_EXPORT_VAR 416 417 #ifdef __cplusplus 418 #define FT_EXPORT_VAR( x ) extern "C" x 419 #else 420 #define FT_EXPORT_VAR( x ) extern x 421 #endif 422 423 #endif /* !FT_EXPORT_VAR */ 424 425 /* The following macros are needed to compile the library with a */ 426 /* C++ compiler and with 16bit compilers. */ 427 /* */ 428 429 /* This is special. Within C++, you must specify `extern "C"' for */ 430 /* functions which are used via function pointers, and you also */ 431 /* must do that for structures which contain function pointers to */ 432 /* assure C linkage -- it's not possible to have (local) anonymous */ 433 /* functions which are accessed by (global) function pointers. */ 434 /* */ 435 /* */ 436 /* FT_CALLBACK_DEF is used to _define_ a callback function. */ 437 /* */ 438 /* FT_CALLBACK_TABLE is used to _declare_ a constant variable that */ 439 /* contains pointers to callback functions. */ 440 /* */ 441 /* FT_CALLBACK_TABLE_DEF is used to _define_ a constant variable */ 442 /* that contains pointers to callback functions. */ 443 /* */ 444 /* */ 445 /* Some 16bit compilers have to redefine these macros to insert */ 446 /* the infamous `_cdecl' or `__fastcall' declarations. */ 447 /* */ 448 #ifndef FT_CALLBACK_DEF 449 #ifdef __cplusplus 450 #define FT_CALLBACK_DEF( x ) extern "C" x 451 #else 452 #define FT_CALLBACK_DEF( x ) static x 453 #endif 454 #endif /* FT_CALLBACK_DEF */ 455 456 #ifndef FT_CALLBACK_TABLE 457 #ifdef __cplusplus 458 #define FT_CALLBACK_TABLE extern "C" 459 #define FT_CALLBACK_TABLE_DEF extern "C" 460 #else 461 #define FT_CALLBACK_TABLE extern 462 #define FT_CALLBACK_TABLE_DEF /* nothing */ 463 #endif 464 #endif /* FT_CALLBACK_TABLE */ 465 466 467 FT_END_HEADER 468 469 470 #endif /* FTCONFIG_H_ */ 471 472 473 /* END */ 474