1 /***************************************************************************/ 2 /* */ 3 /* ftconfig.h */ 4 /* */ 5 /* ANSI-specific configuration file (specification only). */ 6 /* */ 7 /* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2007, 2008, 2010 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 `freetype/builds/<system>', and */ 31 /* contains system-specific files that are always included first when */ 32 /* building the library. */ 33 /* */ 34 /* This ANSI version should stay in `include/freetype/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 /* `freetype/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 /* Preferred alignment of data */ 99 #define FT_ALIGNMENT 8 100 101 102 /* FT_UNUSED is a macro used to indicate that a given parameter is not */ 103 /* used -- this is only used to get rid of unpleasant compiler warnings */ 104 #ifndef FT_UNUSED 105 #define FT_UNUSED( arg ) ( (arg) = (arg) ) 106 #endif 107 108 109 /*************************************************************************/ 110 /* */ 111 /* AUTOMATIC CONFIGURATION MACROS */ 112 /* */ 113 /* These macros are computed from the ones defined above. Don't touch */ 114 /* their definition, unless you know precisely what you are doing. No */ 115 /* porter should need to mess with them. */ 116 /* */ 117 /*************************************************************************/ 118 119 120 /*************************************************************************/ 121 /* */ 122 /* Mac support */ 123 /* */ 124 /* This is the only necessary change, so it is defined here instead */ 125 /* providing a new configuration file. */ 126 /* */ 127 #if ( defined( __APPLE__ ) && !defined( DARWIN_NO_CARBON ) ) || \ 128 ( defined( __MWERKS__ ) && defined( macintosh ) ) 129 /* no Carbon frameworks for 64bit 10.4.x */ 130 #include "AvailabilityMacros.h" 131 #if defined( __LP64__ ) && \ 132 ( MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_4 ) 133 #define DARWIN_NO_CARBON 1 134 #else 135 #define FT_MACINTOSH 1 136 #endif 137 138 #elif defined( __SC__ ) || defined( __MRC__ ) 139 /* Classic MacOS compilers */ 140 #include "ConditionalMacros.h" 141 #if TARGET_OS_MAC 142 #define FT_MACINTOSH 1 143 #endif 144 145 #endif 146 147 148 /*************************************************************************/ 149 /* */ 150 /* <Section> */ 151 /* basic_types */ 152 /* */ 153 /*************************************************************************/ 154 155 156 /*************************************************************************/ 157 /* */ 158 /* <Type> */ 159 /* FT_Int16 */ 160 /* */ 161 /* <Description> */ 162 /* A typedef for a 16bit signed integer type. */ 163 /* */ 164 typedef signed short FT_Int16; 165 166 167 /*************************************************************************/ 168 /* */ 169 /* <Type> */ 170 /* FT_UInt16 */ 171 /* */ 172 /* <Description> */ 173 /* A typedef for a 16bit unsigned integer type. */ 174 /* */ 175 typedef unsigned short FT_UInt16; 176 177 /* */ 178 179 180 /* this #if 0 ... #endif clause is for documentation purposes */ 181 #if 0 182 183 /*************************************************************************/ 184 /* */ 185 /* <Type> */ 186 /* FT_Int32 */ 187 /* */ 188 /* <Description> */ 189 /* A typedef for a 32bit signed integer type. The size depends on */ 190 /* the configuration. */ 191 /* */ 192 typedef signed XXX FT_Int32; 193 194 195 /*************************************************************************/ 196 /* */ 197 /* <Type> */ 198 /* FT_UInt32 */ 199 /* */ 200 /* A typedef for a 32bit unsigned integer type. The size depends on */ 201 /* the configuration. */ 202 /* */ 203 typedef unsigned XXX FT_UInt32; 204 205 /* */ 206 207 #endif 208 209 #if FT_SIZEOF_INT == (32 / FT_CHAR_BIT) 210 211 typedef signed int FT_Int32; 212 typedef unsigned int FT_UInt32; 213 214 #elif FT_SIZEOF_LONG == (32 / FT_CHAR_BIT) 215 216 typedef signed long FT_Int32; 217 typedef unsigned long FT_UInt32; 218 219 #else 220 #error "no 32bit type found -- please check your configuration files" 221 #endif 222 223 224 /* look up an integer type that is at least 32 bits */ 225 #if FT_SIZEOF_INT >= (32 / FT_CHAR_BIT) 226 227 typedef int FT_Fast; 228 typedef unsigned int FT_UFast; 229 230 #elif FT_SIZEOF_LONG >= (32 / FT_CHAR_BIT) 231 232 typedef long FT_Fast; 233 typedef unsigned long FT_UFast; 234 235 #endif 236 237 238 /* determine whether we have a 64-bit int type for platforms without */ 239 /* Autoconf */ 240 #if FT_SIZEOF_LONG == (64 / FT_CHAR_BIT) 241 242 /* FT_LONG64 must be defined if a 64-bit type is available */ 243 #define FT_LONG64 244 #define FT_INT64 long 245 246 #elif defined( _MSC_VER ) && _MSC_VER >= 900 /* Visual C++ (and Intel C++) */ 247 248 /* this compiler provides the __int64 type */ 249 #define FT_LONG64 250 #define FT_INT64 __int64 251 252 #elif defined( __BORLANDC__ ) /* Borland C++ */ 253 254 /* XXXX: We should probably check the value of __BORLANDC__ in order */ 255 /* to test the compiler version. */ 256 257 /* this compiler provides the __int64 type */ 258 #define FT_LONG64 259 #define FT_INT64 __int64 260 261 #elif defined( __WATCOMC__ ) /* Watcom C++ */ 262 263 /* Watcom doesn't provide 64-bit data types */ 264 265 #elif defined( __MWERKS__ ) /* Metrowerks CodeWarrior */ 266 267 #define FT_LONG64 268 #define FT_INT64 long long int 269 270 #elif defined( __GNUC__ ) 271 272 /* GCC provides the `long long' type */ 273 #define FT_LONG64 274 #define FT_INT64 long long int 275 276 #endif /* FT_SIZEOF_LONG == (64 / FT_CHAR_BIT) */ 277 278 279 /*************************************************************************/ 280 /* */ 281 /* A 64-bit data type will create compilation problems if you compile */ 282 /* in strict ANSI mode. To avoid them, we disable its use if __STDC__ */ 283 /* is defined. You can however ignore this rule by defining the */ 284 /* FT_CONFIG_OPTION_FORCE_INT64 configuration macro. */ 285 /* */ 286 #if defined( FT_LONG64 ) && !defined( FT_CONFIG_OPTION_FORCE_INT64 ) 287 288 #ifdef __STDC__ 289 290 /* undefine the 64-bit macros in strict ANSI compilation mode */ 291 #undef FT_LONG64 292 #undef FT_INT64 293 294 #endif /* __STDC__ */ 295 296 #endif /* FT_LONG64 && !FT_CONFIG_OPTION_FORCE_INT64 */ 297 298 299 #define FT_BEGIN_STMNT do { 300 #define FT_END_STMNT } while ( 0 ) 301 #define FT_DUMMY_STMNT FT_BEGIN_STMNT FT_END_STMNT 302 303 304 #ifndef FT_CONFIG_OPTION_NO_ASSEMBLER 305 /* Provide assembler fragments for performance-critical functions. */ 306 /* These must be defined `static __inline__' with GCC. */ 307 308 #if defined( __CC_ARM ) || defined( __ARMCC__ ) /* RVCT */ 309 #define FT_MULFIX_ASSEMBLER FT_MulFix_arm 310 311 /* documentation is in freetype.h */ 312 313 static __inline FT_Int32 FT_MulFix_arm(FT_Int32 a,FT_Int32 b)314 FT_MulFix_arm( FT_Int32 a, 315 FT_Int32 b ) 316 { 317 register FT_Int32 t, t2; 318 319 320 __asm 321 { 322 smull t2, t, b, a /* (lo=t2,hi=t) = a*b */ 323 mov a, t, asr #31 /* a = (hi >> 31) */ 324 add a, a, #0x8000 /* a += 0x8000 */ 325 adds t2, t2, a /* t2 += a */ 326 adc t, t, #0 /* t += carry */ 327 mov a, t2, lsr #16 /* a = t2 >> 16 */ 328 orr a, a, t, lsl #16 /* a |= t << 16 */ 329 } 330 return a; 331 } 332 333 #endif /* __CC_ARM || __ARMCC__ */ 334 335 336 #ifdef __GNUC__ 337 338 #if defined( __arm__ ) && !defined( __thumb__ ) && \ 339 !( defined( __CC_ARM ) || defined( __ARMCC__ ) ) 340 #define FT_MULFIX_ASSEMBLER FT_MulFix_arm 341 342 /* documentation is in freetype.h */ 343 344 static __inline__ FT_Int32 FT_MulFix_arm(FT_Int32 a,FT_Int32 b)345 FT_MulFix_arm( FT_Int32 a, 346 FT_Int32 b ) 347 { 348 register FT_Int32 t, t2; 349 350 351 asm __volatile__ ( 352 "smull %1, %2, %4, %3\n\t" /* (lo=%1,hi=%2) = a*b */ 353 "mov %0, %2, asr #31\n\t" /* %0 = (hi >> 31) */ 354 "add %0, %0, #0x8000\n\t" /* %0 += 0x8000 */ 355 "adds %1, %1, %0\n\t" /* %1 += %0 */ 356 "adc %2, %2, #0\n\t" /* %2 += carry */ 357 "mov %0, %1, lsr #16\n\t" /* %0 = %1 >> 16 */ 358 "orr %0, %2, lsl #16\n\t" /* %0 |= %2 << 16 */ 359 : "=r"(a), "=&r"(t2), "=&r"(t) 360 : "r"(a), "r"(b) ); 361 return a; 362 } 363 364 #endif /* __arm__ && !__thumb__ && !( __CC_ARM || __ARMCC__ ) */ 365 366 #if defined( __i386__ ) 367 #define FT_MULFIX_ASSEMBLER FT_MulFix_i386 368 369 /* documentation is in freetype.h */ 370 371 static __inline__ FT_Int32 FT_MulFix_i386(FT_Int32 a,FT_Int32 b)372 FT_MulFix_i386( FT_Int32 a, 373 FT_Int32 b ) 374 { 375 register FT_Int32 result; 376 377 378 __asm__ __volatile__ ( 379 "imul %%edx\n" 380 "movl %%edx, %%ecx\n" 381 "sarl $31, %%ecx\n" 382 "addl $0x8000, %%ecx\n" 383 "addl %%ecx, %%eax\n" 384 "adcl $0, %%edx\n" 385 "shrl $16, %%eax\n" 386 "shll $16, %%edx\n" 387 "addl %%edx, %%eax\n" 388 : "=a"(result), "=d"(b) 389 : "a"(a), "d"(b) 390 : "%ecx", "cc" ); 391 return result; 392 } 393 394 #endif /* i386 */ 395 396 #endif /* __GNUC__ */ 397 398 #endif /* !FT_CONFIG_OPTION_NO_ASSEMBLER */ 399 400 401 #ifdef FT_CONFIG_OPTION_INLINE_MULFIX 402 #ifdef FT_MULFIX_ASSEMBLER 403 #define FT_MULFIX_INLINED FT_MULFIX_ASSEMBLER 404 #endif 405 #endif 406 407 408 #ifdef FT_MAKE_OPTION_SINGLE_OBJECT 409 410 #define FT_LOCAL( x ) static x 411 #define FT_LOCAL_DEF( x ) static x 412 413 #else 414 415 #ifdef __cplusplus 416 #define FT_LOCAL( x ) extern "C" x 417 #define FT_LOCAL_DEF( x ) extern "C" x 418 #else 419 #define FT_LOCAL( x ) extern x 420 #define FT_LOCAL_DEF( x ) x 421 #endif 422 423 #endif /* FT_MAKE_OPTION_SINGLE_OBJECT */ 424 425 426 #ifndef FT_BASE 427 428 #ifdef __cplusplus 429 #define FT_BASE( x ) extern "C" x 430 #else 431 #define FT_BASE( x ) extern x 432 #endif 433 434 #endif /* !FT_BASE */ 435 436 437 #ifndef FT_BASE_DEF 438 439 #ifdef __cplusplus 440 #define FT_BASE_DEF( x ) x 441 #else 442 #define FT_BASE_DEF( x ) x 443 #endif 444 445 #endif /* !FT_BASE_DEF */ 446 447 448 #ifndef FT_EXPORT 449 450 #ifdef __cplusplus 451 #define FT_EXPORT( x ) extern "C" x 452 #else 453 #define FT_EXPORT( x ) extern x 454 #endif 455 456 #endif /* !FT_EXPORT */ 457 458 459 #ifndef FT_EXPORT_DEF 460 461 #ifdef __cplusplus 462 #define FT_EXPORT_DEF( x ) extern "C" x 463 #else 464 #define FT_EXPORT_DEF( x ) extern x 465 #endif 466 467 #endif /* !FT_EXPORT_DEF */ 468 469 470 #ifndef FT_EXPORT_VAR 471 472 #ifdef __cplusplus 473 #define FT_EXPORT_VAR( x ) extern "C" x 474 #else 475 #define FT_EXPORT_VAR( x ) extern x 476 #endif 477 478 #endif /* !FT_EXPORT_VAR */ 479 480 /* The following macros are needed to compile the library with a */ 481 /* C++ compiler and with 16bit compilers. */ 482 /* */ 483 484 /* This is special. Within C++, you must specify `extern "C"' for */ 485 /* functions which are used via function pointers, and you also */ 486 /* must do that for structures which contain function pointers to */ 487 /* assure C linkage -- it's not possible to have (local) anonymous */ 488 /* functions which are accessed by (global) function pointers. */ 489 /* */ 490 /* */ 491 /* FT_CALLBACK_DEF is used to _define_ a callback function. */ 492 /* */ 493 /* FT_CALLBACK_TABLE is used to _declare_ a constant variable that */ 494 /* contains pointers to callback functions. */ 495 /* */ 496 /* FT_CALLBACK_TABLE_DEF is used to _define_ a constant variable */ 497 /* that contains pointers to callback functions. */ 498 /* */ 499 /* */ 500 /* Some 16bit compilers have to redefine these macros to insert */ 501 /* the infamous `_cdecl' or `__fastcall' declarations. */ 502 /* */ 503 #ifndef FT_CALLBACK_DEF 504 #ifdef __cplusplus 505 #define FT_CALLBACK_DEF( x ) extern "C" x 506 #else 507 #define FT_CALLBACK_DEF( x ) static x 508 #endif 509 #endif /* FT_CALLBACK_DEF */ 510 511 #ifndef FT_CALLBACK_TABLE 512 #ifdef __cplusplus 513 #define FT_CALLBACK_TABLE extern "C" 514 #define FT_CALLBACK_TABLE_DEF extern "C" 515 #else 516 #define FT_CALLBACK_TABLE extern 517 #define FT_CALLBACK_TABLE_DEF /* nothing */ 518 #endif 519 #endif /* FT_CALLBACK_TABLE */ 520 521 522 FT_END_HEADER 523 524 525 #endif /* __FTCONFIG_H__ */ 526 527 528 /* END */ 529