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 FT_CONFIG_OPTIONS_H 43#include FT_CONFIG_STANDARD_LIBRARY_H 44 45 46FT_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#if defined( __CC_ARM ) || defined( __ARMCC__ ) /* RVCT */ 341#define FT_MULFIX_ASSEMBLER FT_MulFix_arm 342 343 /* documentation is in freetype.h */ 344 345 static __inline FT_Int32 346 FT_MulFix_arm( FT_Int32 a, 347 FT_Int32 b ) 348 { 349 register FT_Int32 t, t2; 350 351 352 __asm 353 { 354 smull t2, t, b, a /* (lo=t2,hi=t) = a*b */ 355 mov a, t, asr #31 /* a = (hi >> 31) */ 356 add a, a, #0x8000 /* a += 0x8000 */ 357 adds t2, t2, a /* t2 += a */ 358 adc t, t, #0 /* t += carry */ 359 mov a, t2, lsr #16 /* a = t2 >> 16 */ 360 orr a, a, t, lsl #16 /* a |= t << 16 */ 361 } 362 return a; 363 } 364 365#endif /* __CC_ARM || __ARMCC__ */ 366 367 368#ifdef __GNUC__ 369 370#if defined( __arm__ ) && !defined( __thumb__ ) && \ 371 !( defined( __CC_ARM ) || defined( __ARMCC__ ) ) 372#define FT_MULFIX_ASSEMBLER FT_MulFix_arm 373 374 /* documentation is in freetype.h */ 375 376 static __inline__ FT_Int32 377 FT_MulFix_arm( FT_Int32 a, 378 FT_Int32 b ) 379 { 380 register FT_Int32 t, t2; 381 382 383 __asm__ __volatile__ ( 384 "smull %1, %2, %4, %3\n\t" /* (lo=%1,hi=%2) = a*b */ 385 "mov %0, %2, asr #31\n\t" /* %0 = (hi >> 31) */ 386 "add %0, %0, #0x8000\n\t" /* %0 += 0x8000 */ 387 "adds %1, %1, %0\n\t" /* %1 += %0 */ 388 "adc %2, %2, #0\n\t" /* %2 += carry */ 389 "mov %0, %1, lsr #16\n\t" /* %0 = %1 >> 16 */ 390 "orr %0, %0, %2, lsl #16\n\t" /* %0 |= %2 << 16 */ 391 : "=r"(a), "=&r"(t2), "=&r"(t) 392 : "r"(a), "r"(b) 393 : "cc" ); 394 return a; 395 } 396 397#endif /* __arm__ && !__thumb__ && !( __CC_ARM || __ARMCC__ ) */ 398 399#if defined( __i386__ ) 400#define FT_MULFIX_ASSEMBLER FT_MulFix_i386 401 402 /* documentation is in freetype.h */ 403 404 static __inline__ FT_Int32 405 FT_MulFix_i386( FT_Int32 a, 406 FT_Int32 b ) 407 { 408 register FT_Int32 result; 409 410 411 __asm__ __volatile__ ( 412 "imul %%edx\n" 413 "movl %%edx, %%ecx\n" 414 "sarl $31, %%ecx\n" 415 "addl $0x8000, %%ecx\n" 416 "addl %%ecx, %%eax\n" 417 "adcl $0, %%edx\n" 418 "shrl $16, %%eax\n" 419 "shll $16, %%edx\n" 420 "addl %%edx, %%eax\n" 421 : "=a"(result), "=d"(b) 422 : "a"(a), "d"(b) 423 : "%ecx", "cc" ); 424 return result; 425 } 426 427#endif /* i386 */ 428 429#endif /* __GNUC__ */ 430 431 432#ifdef _MSC_VER /* Visual C++ */ 433 434#ifdef _M_IX86 435 436#define FT_MULFIX_ASSEMBLER FT_MulFix_i386 437 438 /* documentation is in freetype.h */ 439 440 static __inline FT_Int32 441 FT_MulFix_i386( FT_Int32 a, 442 FT_Int32 b ) 443 { 444 register FT_Int32 result; 445 446 __asm 447 { 448 mov eax, a 449 mov edx, b 450 imul edx 451 mov ecx, edx 452 sar ecx, 31 453 add ecx, 8000h 454 add eax, ecx 455 adc edx, 0 456 shr eax, 16 457 shl edx, 16 458 add eax, edx 459 mov result, eax 460 } 461 return result; 462 } 463 464#endif /* _M_IX86 */ 465 466#endif /* _MSC_VER */ 467 468#endif /* !FT_CONFIG_OPTION_NO_ASSEMBLER */ 469 470 471#ifdef FT_CONFIG_OPTION_INLINE_MULFIX 472#ifdef FT_MULFIX_ASSEMBLER 473#define FT_MULFIX_INLINED FT_MULFIX_ASSEMBLER 474#endif 475#endif 476 477 478#ifdef FT_MAKE_OPTION_SINGLE_OBJECT 479 480#define FT_LOCAL( x ) static x 481#define FT_LOCAL_DEF( x ) static x 482 483#else 484 485#ifdef __cplusplus 486#define FT_LOCAL( x ) extern "C" x 487#define FT_LOCAL_DEF( x ) extern "C" x 488#else 489#define FT_LOCAL( x ) extern x 490#define FT_LOCAL_DEF( x ) x 491#endif 492 493#endif /* FT_MAKE_OPTION_SINGLE_OBJECT */ 494 495 496#ifndef FT_BASE 497 498#ifdef __cplusplus 499#define FT_BASE( x ) extern "C" x 500#else 501#define FT_BASE( x ) extern x 502#endif 503 504#endif /* !FT_BASE */ 505 506 507#ifndef FT_BASE_DEF 508 509#ifdef __cplusplus 510#define FT_BASE_DEF( x ) x 511#else 512#define FT_BASE_DEF( x ) x 513#endif 514 515#endif /* !FT_BASE_DEF */ 516 517 518#ifndef FT_EXPORT 519 520#ifdef __cplusplus 521#define FT_EXPORT( x ) extern "C" x 522#else 523#define FT_EXPORT( x ) extern x 524#endif 525 526#endif /* !FT_EXPORT */ 527 528 529#ifndef FT_EXPORT_DEF 530 531#ifdef __cplusplus 532#define FT_EXPORT_DEF( x ) extern "C" x 533#else 534#define FT_EXPORT_DEF( x ) extern x 535#endif 536 537#endif /* !FT_EXPORT_DEF */ 538 539 540#ifndef FT_EXPORT_VAR 541 542#ifdef __cplusplus 543#define FT_EXPORT_VAR( x ) extern "C" x 544#else 545#define FT_EXPORT_VAR( x ) extern x 546#endif 547 548#endif /* !FT_EXPORT_VAR */ 549 550 /* The following macros are needed to compile the library with a */ 551 /* C++ compiler and with 16bit compilers. */ 552 /* */ 553 554 /* This is special. Within C++, you must specify `extern "C"' for */ 555 /* functions which are used via function pointers, and you also */ 556 /* must do that for structures which contain function pointers to */ 557 /* assure C linkage -- it's not possible to have (local) anonymous */ 558 /* functions which are accessed by (global) function pointers. */ 559 /* */ 560 /* */ 561 /* FT_CALLBACK_DEF is used to _define_ a callback function. */ 562 /* */ 563 /* FT_CALLBACK_TABLE is used to _declare_ a constant variable that */ 564 /* contains pointers to callback functions. */ 565 /* */ 566 /* FT_CALLBACK_TABLE_DEF is used to _define_ a constant variable */ 567 /* that contains pointers to callback functions. */ 568 /* */ 569 /* */ 570 /* Some 16bit compilers have to redefine these macros to insert */ 571 /* the infamous `_cdecl' or `__fastcall' declarations. */ 572 /* */ 573#ifndef FT_CALLBACK_DEF 574#ifdef __cplusplus 575#define FT_CALLBACK_DEF( x ) extern "C" x 576#else 577#define FT_CALLBACK_DEF( x ) static x 578#endif 579#endif /* FT_CALLBACK_DEF */ 580 581#ifndef FT_CALLBACK_TABLE 582#ifdef __cplusplus 583#define FT_CALLBACK_TABLE extern "C" 584#define FT_CALLBACK_TABLE_DEF extern "C" 585#else 586#define FT_CALLBACK_TABLE extern 587#define FT_CALLBACK_TABLE_DEF /* nothing */ 588#endif 589#endif /* FT_CALLBACK_TABLE */ 590 591 592FT_END_HEADER 593 594 595#endif /* __FTCONFIG_H__ */ 596 597 598/* END */ 599