1 /***************************************************************************/ 2 /* */ 3 /* ftconfig.h */ 4 /* */ 5 /* ANSI-specific configuration file (specification only). */ 6 /* */ 7 /* Copyright 1996-2004, 2006-2008, 2010-2011, 2013 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 "ftoption.h" 43 #include "ftstdlib.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 /* 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 #elif defined( _MSC_VER ) && _MSC_VER >= 900 /* Visual C++ (and Intel C++) */ 270 271 /* this compiler provides the __int64 type */ 272 #define FT_LONG64 273 #define FT_INT64 __int64 274 #define FT_UINT64 unsigned __int64 275 276 #elif defined( __BORLANDC__ ) /* Borland C++ */ 277 278 /* XXXX: We should probably check the value of __BORLANDC__ in order */ 279 /* to test the compiler version. */ 280 281 /* this compiler provides the __int64 type */ 282 #define FT_LONG64 283 #define FT_INT64 __int64 284 #define FT_UINT64 unsigned __int64 285 286 #elif defined( __WATCOMC__ ) /* Watcom C++ */ 287 288 /* Watcom doesn't provide 64-bit data types */ 289 290 #elif defined( __MWERKS__ ) /* Metrowerks CodeWarrior */ 291 292 #define FT_LONG64 293 #define FT_INT64 long long int 294 #define FT_UINT64 unsigned long long int 295 296 #elif defined( __GNUC__ ) 297 298 /* GCC provides the `long long' type */ 299 #define FT_LONG64 300 #define FT_INT64 long long int 301 #define FT_UINT64 unsigned long long int 302 303 #endif /* FT_SIZEOF_LONG == (64 / FT_CHAR_BIT) */ 304 305 306 /*************************************************************************/ 307 /* */ 308 /* A 64-bit data type will create compilation problems if you compile */ 309 /* in strict ANSI mode. To avoid them, we disable its use if __STDC__ */ 310 /* is defined. You can however ignore this rule by defining the */ 311 /* FT_CONFIG_OPTION_FORCE_INT64 configuration macro. */ 312 /* */ 313 #if defined( FT_LONG64 ) && !defined( FT_CONFIG_OPTION_FORCE_INT64 ) 314 315 #ifdef __STDC__ 316 317 /* undefine the 64-bit macros in strict ANSI compilation mode */ 318 #undef FT_LONG64 319 #undef FT_INT64 320 321 #endif /* __STDC__ */ 322 323 #endif /* FT_LONG64 && !FT_CONFIG_OPTION_FORCE_INT64 */ 324 325 #ifdef FT_LONG64 326 typedef FT_INT64 FT_Int64; 327 typedef FT_UINT64 FT_UInt64; 328 #endif 329 330 331 #define FT_BEGIN_STMNT do { 332 #define FT_END_STMNT } while ( 0 ) 333 #define FT_DUMMY_STMNT FT_BEGIN_STMNT FT_END_STMNT 334 335 336 #ifndef FT_CONFIG_OPTION_NO_ASSEMBLER 337 /* Provide assembler fragments for performance-critical functions. */ 338 /* These must be defined `static __inline__' with GCC. */ 339 340 /**Johnson add !defined( __thumb__ )*/ 341 #if (defined( __CC_ARM ) || defined( __ARMCC__ ))&& !defined( __thumb__ ) /* RVCT */ 342 #define FT_MULFIX_ASSEMBLER FT_MulFix_arm 343 344 /* documentation is in freetype.h */ 345 346 static __inline FT_Int32 347 FT_MulFix_arm( FT_Int32 a, 348 FT_Int32 b ) 349 { 350 register FT_Int32 t, t2; 351 352 353 __asm 354 { 355 smull t2, t, b, a /* (lo=t2,hi=t) = a*b */ 356 mov a, t, asr #31 /* a = (hi >> 31) */ 357 add a, a, #0x8000 /* a += 0x8000 */ 358 adds t2, t2, a /* t2 += a */ 359 adc t, t, #0 /* t += carry */ 360 mov a, t2, lsr #16 /* a = t2 >> 16 */ 361 orr a, a, t, lsl #16 /* a |= t << 16 */ 362 } 363 return a; 364 } 365 366 #endif /* __CC_ARM || __ARMCC__ */ 367 368 369 #ifdef __GNUC__ 370 371 #if defined( __arm__ ) && !defined( __thumb__ ) && \ 372 !( defined( __CC_ARM ) || defined( __ARMCC__ ) ) 373 #define FT_MULFIX_ASSEMBLER FT_MulFix_arm 374 375 /* documentation is in freetype.h */ 376 377 static __inline__ FT_Int32 378 FT_MulFix_arm( FT_Int32 a, 379 FT_Int32 b ) 380 { 381 register FT_Int32 t, t2; 382 383 384 __asm__ __volatile__ ( 385 "smull %1, %2, %4, %3\n\t" /* (lo=%1,hi=%2) = a*b */ 386 "mov %0, %2, asr #31\n\t" /* %0 = (hi >> 31) */ 387 "add %0, %0, #0x8000\n\t" /* %0 += 0x8000 */ 388 "adds %1, %1, %0\n\t" /* %1 += %0 */ 389 "adc %2, %2, #0\n\t" /* %2 += carry */ 390 "mov %0, %1, lsr #16\n\t" /* %0 = %1 >> 16 */ 391 "orr %0, %0, %2, lsl #16\n\t" /* %0 |= %2 << 16 */ 392 : "=r"(a), "=&r"(t2), "=&r"(t) 393 : "r"(a), "r"(b) 394 : "cc" ); 395 return a; 396 } 397 398 #endif /* __arm__ && !__thumb__ && !( __CC_ARM || __ARMCC__ ) */ 399 400 #if defined( __i386__ ) 401 #define FT_MULFIX_ASSEMBLER FT_MulFix_i386 402 403 /* documentation is in freetype.h */ 404 405 static __inline__ FT_Int32 406 FT_MulFix_i386( FT_Int32 a, 407 FT_Int32 b ) 408 { 409 register FT_Int32 result; 410 411 412 __asm__ __volatile__ ( 413 "imul %%edx\n" 414 "movl %%edx, %%ecx\n" 415 "sarl $31, %%ecx\n" 416 "addl $0x8000, %%ecx\n" 417 "addl %%ecx, %%eax\n" 418 "adcl $0, %%edx\n" 419 "shrl $16, %%eax\n" 420 "shll $16, %%edx\n" 421 "addl %%edx, %%eax\n" 422 : "=a"(result), "=d"(b) 423 : "a"(a), "d"(b) 424 : "%ecx", "cc" ); 425 return result; 426 } 427 428 #endif /* i386 */ 429 430 #endif /* __GNUC__ */ 431 432 433 #ifdef _MSC_VER /* Visual C++ */ 434 435 #ifdef _M_IX86 436 437 #define FT_MULFIX_ASSEMBLER FT_MulFix_i386 438 439 /* documentation is in freetype.h */ 440 441 static __inline FT_Int32 442 FT_MulFix_i386( FT_Int32 a, 443 FT_Int32 b ) 444 { 445 register FT_Int32 result; 446 447 __asm 448 { 449 mov eax, a 450 mov edx, b 451 imul edx 452 mov ecx, edx 453 sar ecx, 31 454 add ecx, 8000h 455 add eax, ecx 456 adc edx, 0 457 shr eax, 16 458 shl edx, 16 459 add eax, edx 460 mov result, eax 461 } 462 return result; 463 } 464 465 #endif /* _M_IX86 */ 466 467 #endif /* _MSC_VER */ 468 469 #endif /* !FT_CONFIG_OPTION_NO_ASSEMBLER */ 470 471 472 #ifdef FT_CONFIG_OPTION_INLINE_MULFIX 473 #ifdef FT_MULFIX_ASSEMBLER 474 #define FT_MULFIX_INLINED FT_MULFIX_ASSEMBLER 475 #endif 476 #endif 477 478 479 #ifdef FT_MAKE_OPTION_SINGLE_OBJECT 480 481 #define FT_LOCAL( x ) static x 482 #define FT_LOCAL_DEF( x ) static x 483 484 #else 485 486 #ifdef __cplusplus 487 #define FT_LOCAL( x ) extern "C" x 488 #define FT_LOCAL_DEF( x ) extern "C" x 489 #else 490 #define FT_LOCAL( x ) extern x 491 #define FT_LOCAL_DEF( x ) x 492 #endif 493 494 #endif /* FT_MAKE_OPTION_SINGLE_OBJECT */ 495 496 497 #ifndef FT_BASE 498 499 #ifdef __cplusplus 500 #define FT_BASE( x ) extern "C" x 501 #else 502 #define FT_BASE( x ) extern x 503 #endif 504 505 #endif /* !FT_BASE */ 506 507 508 #ifndef FT_BASE_DEF 509 510 #ifdef __cplusplus 511 #define FT_BASE_DEF( x ) x 512 #else 513 #define FT_BASE_DEF( x ) x 514 #endif 515 516 #endif /* !FT_BASE_DEF */ 517 518 519 #ifndef FT_EXPORT 520 521 #ifdef __cplusplus 522 #define FT_EXPORT( x ) extern "C" x 523 #else 524 #define FT_EXPORT( x ) extern x 525 #endif 526 527 #endif /* !FT_EXPORT */ 528 529 530 #ifndef FT_EXPORT_DEF 531 532 #ifdef __cplusplus 533 #define FT_EXPORT_DEF( x ) extern "C" x 534 #else 535 #define FT_EXPORT_DEF( x ) extern x 536 #endif 537 538 #endif /* !FT_EXPORT_DEF */ 539 540 541 #ifndef FT_EXPORT_VAR 542 543 #ifdef __cplusplus 544 #define FT_EXPORT_VAR( x ) extern "C" x 545 #else 546 #define FT_EXPORT_VAR( x ) extern x 547 #endif 548 549 #endif /* !FT_EXPORT_VAR */ 550 551 /* The following macros are needed to compile the library with a */ 552 /* C++ compiler and with 16bit compilers. */ 553 /* */ 554 555 /* This is special. Within C++, you must specify `extern "C"' for */ 556 /* functions which are used via function pointers, and you also */ 557 /* must do that for structures which contain function pointers to */ 558 /* assure C linkage -- it's not possible to have (local) anonymous */ 559 /* functions which are accessed by (global) function pointers. */ 560 /* */ 561 /* */ 562 /* FT_CALLBACK_DEF is used to _define_ a callback function. */ 563 /* */ 564 /* FT_CALLBACK_TABLE is used to _declare_ a constant variable that */ 565 /* contains pointers to callback functions. */ 566 /* */ 567 /* FT_CALLBACK_TABLE_DEF is used to _define_ a constant variable */ 568 /* that contains pointers to callback functions. */ 569 /* */ 570 /* */ 571 /* Some 16bit compilers have to redefine these macros to insert */ 572 /* the infamous `_cdecl' or `__fastcall' declarations. */ 573 /* */ 574 #ifndef FT_CALLBACK_DEF 575 #ifdef __cplusplus 576 #define FT_CALLBACK_DEF( x ) extern "C" x 577 #else 578 #define FT_CALLBACK_DEF( x ) static x 579 #endif 580 #endif /* FT_CALLBACK_DEF */ 581 582 #ifndef FT_CALLBACK_TABLE 583 #ifdef __cplusplus 584 #define FT_CALLBACK_TABLE extern "C" 585 #define FT_CALLBACK_TABLE_DEF extern "C" 586 #else 587 #define FT_CALLBACK_TABLE extern 588 #define FT_CALLBACK_TABLE_DEF /* nothing */ 589 #endif 590 #endif /* FT_CALLBACK_TABLE */ 591 592 593 FT_END_HEADER 594 595 596 #endif /* __FTCONFIG_H__ */ 597 598 599 /* END */ 600
