third_party/freetype2/include/ftconfig.h

   1 /* ftconfig.h.  Generated from ftconfig.in by configure.  */
   2 /***************************************************************************/
   3 /*                                                                         */
   4 /*  ftconfig.in                                                            */
   5 /*                                                                         */
   6 /*    UNIX-specific configuration file (specification only).               */
   7 /*                                                                         */
   8 /*  Copyright 1996-2004, 2006-2009, 2011 by                                */
   9 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
  10 /*                                                                         */
  11 /*  This file is part of the FreeType project, and may only be used,       */
  12 /*  modified, and distributed under the terms of the FreeType project      */
  13 /*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
  14 /*  this file you indicate that you have read the license and              */
  15 /*  understand and accept it fully.                                        */
  16 /*                                                                         */
  17 /***************************************************************************/
  18
  19
  20   /*************************************************************************/
  21   /*                                                                       */
  22   /* This header file contains a number of macro definitions that are used */
  23   /* by the rest of the engine.  Most of the macros here are automatically */
  24   /* determined at compile time, and you should not need to change it to   */
  25   /* port FreeType, except to compile the library with a non-ANSI          */
  26   /* compiler.                                                             */
  27   /*                                                                       */
  28   /* Note however that if some specific modifications are needed, we       */
  29   /* advise you to place a modified copy in your build directory.          */
  30   /*                                                                       */
  31   /* The build directory is usually `freetype/builds/<system>', and        */
  32   /* contains system-specific files that are always included first when    */
  33   /* building the library.                                                 */
  34   /*                                                                       */
  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 #define HAVE_UNISTD_H 1
  62 #define HAVE_FCNTL_H 1
  63 #define HAVE_STDINT_H 1
  64
  65
  66   /* There are systems (like the Texas Instruments 'C54x) where a `char' */
  67   /* has 16 bits.  ANSI C says that sizeof(char) is always 1.  Since an  */
  68   /* `int' has 16 bits also for this system, sizeof(int) gives 1 which   */
  69   /* is probably unexpected.                                             */
  70   /*                                                                     */
  71   /* `CHAR_BIT' (defined in limits.h) gives the number of bits in a      */
  72   /* `char' type.                                                        */
  73
  74 #ifndef FT_CHAR_BIT
  75 #define FT_CHAR_BIT  CHAR_BIT
  76 #endif
  77
  78
  79 /* #undef FT_USE_AUTOCONF_SIZEOF_TYPES */
  80 #ifdef FT_USE_AUTOCONF_SIZEOF_TYPES
  81
  82 #define SIZEOF_INT 4
  83 #define SIZEOF_LONG 8
  84 #define FT_SIZEOF_INT  SIZEOF_INT
  85 #define FT_SIZEOF_LONG SIZEOF_LONG
  86
  87 #else /* !FT_USE_AUTOCONF_SIZEOF_TYPES */
  88
  89   /* Following cpp computation of the bit length of int and long */
  90   /* is copied from default include/freetype/config/ftconfig.h.  */
  91   /* If any improvement is required for this file, it should be  */
  92   /* applied to the original header file for the builders that   */
  93   /* does not use configure script.                              */
  94
  95   /* The size of an `int' type.  */
  96 #if                                 FT_UINT_MAX == 0xFFFFUL
  97 #define FT_SIZEOF_INT  (16 / FT_CHAR_BIT)
  98 #elif                               FT_UINT_MAX == 0xFFFFFFFFUL
  99 #define FT_SIZEOF_INT  (32 / FT_CHAR_BIT)
 100 #elif FT_UINT_MAX > 0xFFFFFFFFUL && FT_UINT_MAX == 0xFFFFFFFFFFFFFFFFUL
 101 #define FT_SIZEOF_INT  (64 / FT_CHAR_BIT)
 102 #else
 103 #error "Unsupported size of `int' type!"
 104 #endif
 105
 106   /* The size of a `long' type.  A five-byte `long' (as used e.g. on the */
 107   /* DM642) is recognized but avoided.                                   */
 108 #if                                  FT_ULONG_MAX == 0xFFFFFFFFUL
 109 #define FT_SIZEOF_LONG  (32 / FT_CHAR_BIT)
 110 #elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFUL
 111 #define FT_SIZEOF_LONG  (32 / FT_CHAR_BIT)
 112 #elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFFFFFFFUL
 113 #define FT_SIZEOF_LONG  (64 / FT_CHAR_BIT)
 114 #else
 115 #error "Unsupported size of `long' type!"
 116 #endif
 117
 118 #endif /* !FT_USE_AUTOCONF_SIZEOF_TYPES */
 119
 120
 121   /* FT_UNUSED is a macro used to indicate that a given parameter is not  */
 122   /* used -- this is only used to get rid of unpleasant compiler warnings */
 123 #ifndef FT_UNUSED
 124 #define FT_UNUSED( arg )  ( (arg) = (arg) )
 125 #endif
 126
 127
 128   /*************************************************************************/
 129   /*                                                                       */
 130   /*                     AUTOMATIC CONFIGURATION MACROS                    */
 131   /*                                                                       */
 132   /* These macros are computed from the ones defined above.  Don't touch   */
 133   /* their definition, unless you know precisely what you are doing.  No   */
 134   /* porter should need to mess with them.                                 */
 135   /*                                                                       */
 136   /*************************************************************************/
 137
 138
 139   /*************************************************************************/
 140   /*                                                                       */
 141   /* Mac support                                                           */
 142   /*                                                                       */
 143   /*   This is the only necessary change, so it is defined here instead    */
 144   /*   providing a new configuration file.                                 */
 145   /*                                                                       */
 146 #if ( defined( __APPLE__ ) && !defined( DARWIN_NO_CARBON ) ) || \
 147     ( defined( __MWERKS__ ) && defined( macintosh )        )
 148   /* no Carbon frameworks for 64bit 10.4.x */
 149   /* AvailabilityMacros.h is available since Mac OS X 10.2,        */
 150   /* so guess the system version by maximum errno before inclusion */
 151 #include <errno.h>
 152 #ifdef ECANCELED /* defined since 10.2 */
 153 #include "AvailabilityMacros.h"
 154 #endif
 155 #if defined( __LP64__ ) && \
 156     ( MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_4 )
 157 #define DARWIN_NO_CARBON 1
 158 #else
 159 #define FT_MACINTOSH 1
 160 #endif
 161
 162 #elif defined( __SC__ ) || defined( __MRC__ )
 163   /* Classic MacOS compilers */
 164 #include "ConditionalMacros.h"
 165 #if TARGET_OS_MAC
 166 #define FT_MACINTOSH 1
 167 #endif
 168
 169 #endif
 170
 171
 172   /* Fix compiler warning with sgi compiler */
 173 #if defined( __sgi ) && !defined( __GNUC__ )
 174 #if defined( _COMPILER_VERSION ) && ( _COMPILER_VERSION >= 730 )
 175 #pragma set woff 3505
 176 #endif
 177 #endif
 178
 179
 180   /*************************************************************************/
 181   /*                                                                       */
 182   /* IntN types                                                            */
 183   /*                                                                       */
 184   /*   Used to guarantee the size of some specific integers.               */
 185   /*                                                                       */
 186   typedef signed short    FT_Int16;
 187   typedef unsigned short  FT_UInt16;
 188
 189 #if FT_SIZEOF_INT == 4
 190
 191   typedef signed int      FT_Int32;
 192   typedef unsigned int    FT_UInt32;
 193
 194 #elif FT_SIZEOF_LONG == 4
 195
 196   typedef signed long     FT_Int32;
 197   typedef unsigned long   FT_UInt32;
 198
 199 #else
 200 #error "no 32bit type found -- please check your configuration files"
 201 #endif
 202
 203
 204   /* look up an integer type that is at least 32 bits */
 205 #if FT_SIZEOF_INT >= 4
 206
 207   typedef int            FT_Fast;
 208   typedef unsigned int   FT_UFast;
 209
 210 #elif FT_SIZEOF_LONG >= 4
 211
 212   typedef long           FT_Fast;
 213   typedef unsigned long  FT_UFast;
 214
 215 #endif
 216
 217
 218   /* determine whether we have a 64-bit int type for platforms without */
 219   /* Autoconf                                                          */
 220 #if FT_SIZEOF_LONG == 8
 221
 222   /* FT_LONG64 must be defined if a 64-bit type is available */
 223 #define FT_LONG64
 224 #define FT_INT64  long
 225
 226 #elif defined( _MSC_VER ) && _MSC_VER >= 900  /* Visual C++ (and Intel C++) */
 227
 228   /* this compiler provides the __int64 type */
 229 #define FT_LONG64
 230 #define FT_INT64  __int64
 231
 232 #elif defined( __BORLANDC__ )  /* Borland C++ */
 233
 234   /* XXXX: We should probably check the value of __BORLANDC__ in order */
 235   /*       to test the compiler version.                               */
 236
 237   /* this compiler provides the __int64 type */
 238 #define FT_LONG64
 239 #define FT_INT64  __int64
 240
 241 #elif defined( __WATCOMC__ )   /* Watcom C++ */
 242
 243   /* Watcom doesn't provide 64-bit data types */
 244
 245 #elif defined( __MWERKS__ )    /* Metrowerks CodeWarrior */
 246
 247 #define FT_LONG64
 248 #define FT_INT64  long long int
 249
 250 #elif defined( __GNUC__ )
 251
 252   /* GCC provides the `long long' type */
 253 #define FT_LONG64
 254 #define FT_INT64  long long int
 255
 256 #endif /* FT_SIZEOF_LONG == 8 */
 257
 258
 259   /*************************************************************************/
 260   /*                                                                       */
 261   /* A 64-bit data type will create compilation problems if you compile    */
 262   /* in strict ANSI mode.  To avoid them, we disable its use if __STDC__   */
 263   /* is defined.  You can however ignore this rule by defining the         */
 264   /* FT_CONFIG_OPTION_FORCE_INT64 configuration macro.                     */
 265   /*                                                                       */
 266 #if defined( FT_LONG64 ) && !defined( FT_CONFIG_OPTION_FORCE_INT64 )
 267
 268 #ifdef __STDC__
 269
 270   /* Undefine the 64-bit macros in strict ANSI compilation mode.  */
 271   /* Since `#undef' doesn't survive in configuration header files */
 272   /* we use the postprocessing facility of AC_CONFIG_HEADERS to   */
 273   /* replace the leading `/' with `#'.                            */
 274 #undef FT_LONG64
 275 #undef FT_INT64
 276
 277 #endif /* __STDC__ */
 278
 279 #endif /* FT_LONG64 && !FT_CONFIG_OPTION_FORCE_INT64 */
 280
 281
 282 #define FT_BEGIN_STMNT  do {
 283 #define FT_END_STMNT    } while ( 0 )
 284 #define FT_DUMMY_STMNT  FT_BEGIN_STMNT FT_END_STMNT
 285
 286
 287 #ifndef  FT_CONFIG_OPTION_NO_ASSEMBLER
 288   /* Provide assembler fragments for performance-critical functions. */
 289   /* These must be defined `static __inline__' with GCC.             */
 290
 291 #if defined( __CC_ARM ) || defined( __ARMCC__ )  /* RVCT */
 292 #define FT_MULFIX_ASSEMBLER  FT_MulFix_arm
 293
 294   /* documentation is in freetype.h */
 295
 296   static __inline FT_Int32
 297   FT_MulFix_arm( FT_Int32  a,
 298                  FT_Int32  b )
 299   {
 300     register FT_Int32  t, t2;
 301
 302
 303     __asm
 304     {
 305       smull t2, t,  b,  a           /* (lo=t2,hi=t) = a*b */
 306       mov   a,  t,  asr #31         /* a   = (hi >> 31) */
 307       add   a,  a,  #0x8000         /* a  += 0x8000 */
 308       adds  t2, t2, a               /* t2 += a */
 309       adc   t,  t,  #0              /* t  += carry */
 310       mov   a,  t2, lsr #16         /* a   = t2 >> 16 */
 311       orr   a,  a,  t,  lsl #16     /* a  |= t << 16 */
 312     }
 313     return a;
 314   }
 315
 316 #endif /* __CC_ARM || __ARMCC__ */
 317
 318
 319 #ifdef __GNUC__
 320
 321 #if defined( __arm__ ) && !defined( __thumb__ )    && \
 322     !( defined( __CC_ARM ) || defined( __ARMCC__ ) )
 323 #define FT_MULFIX_ASSEMBLER  FT_MulFix_arm
 324
 325   /* documentation is in freetype.h */
 326
 327   static __inline__ FT_Int32
 328   FT_MulFix_arm( FT_Int32  a,
 329                  FT_Int32  b )
 330   {
 331     register FT_Int32  t, t2;
 332
 333
 334     __asm__ __volatile__ (
 335       "smull  %1, %2, %4, %3\n\t"       /* (lo=%1,hi=%2) = a*b */
 336       "mov    %0, %2, asr #31\n\t"      /* %0  = (hi >> 31) */
 337       "add    %0, %0, #0x8000\n\t"      /* %0 += 0x8000 */
 338       "adds   %1, %1, %0\n\t"           /* %1 += %0 */
 339       "adc    %2, %2, #0\n\t"           /* %2 += carry */
 340       "mov    %0, %1, lsr #16\n\t"      /* %0  = %1 >> 16 */
 341       "orr    %0, %0, %2, lsl #16\n\t"  /* %0 |= %2 << 16 */
 342       : "=r"(a), "=&r"(t2), "=&r"(t)
 343       : "r"(a), "r"(b) );
 344     return a;
 345   }
 346
 347 #endif /* __arm__ && !__thumb__ && !( __CC_ARM || __ARMCC__ ) */
 348
 349 #if defined( __i386__ )
 350 #define FT_MULFIX_ASSEMBLER  FT_MulFix_i386
 351
 352   /* documentation is in freetype.h */
 353
 354   static __inline__ FT_Int32
 355   FT_MulFix_i386( FT_Int32  a,
 356                   FT_Int32  b )
 357   {
 358     register FT_Int32  result;
 359
 360
 361     __asm__ __volatile__ (
 362       "imul  %%edx\n"
 363       "movl  %%edx, %%ecx\n"
 364       "sarl  $31, %%ecx\n"
 365       "addl  $0x8000, %%ecx\n"
 366       "addl  %%ecx, %%eax\n"
 367       "adcl  $0, %%edx\n"
 368       "shrl  $16, %%eax\n"
 369       "shll  $16, %%edx\n"
 370       "addl  %%edx, %%eax\n"
 371       : "=a"(result), "=d"(b)
 372       : "a"(a), "d"(b)
 373       : "%ecx", "cc" );
 374     return result;
 375   }
 376
 377 #endif /* i386 */
 378
 379 #endif /* __GNUC__ */
 380
 381
 382 #ifdef _MSC_VER /* Visual C++ */
 383
 384 #ifdef _M_IX86
 385
 386 #define FT_MULFIX_ASSEMBLER  FT_MulFix_i386
 387
 388   /* documentation is in freetype.h */
 389
 390   static __inline FT_Int32
 391   FT_MulFix_i386( FT_Int32  a,
 392                   FT_Int32  b )
 393   {
 394     register FT_Int32  result;
 395
 396     __asm
 397     {
 398       mov eax, a
 399       mov edx, b
 400       imul edx
 401       mov ecx, edx
 402       sar ecx, 31
 403       add ecx, 8000h
 404       add eax, ecx
 405       adc edx, 0
 406       shr eax, 16
 407       shl edx, 16
 408       add eax, edx
 409       mov result, eax
 410     }
 411     return result;
 412   }
 413
 414 #endif /* _M_IX86 */
 415
 416 #endif /* _MSC_VER */
 417
 418 #endif /* !FT_CONFIG_OPTION_NO_ASSEMBLER */
 419
 420
 421 #ifdef FT_CONFIG_OPTION_INLINE_MULFIX
 422 #ifdef FT_MULFIX_ASSEMBLER
 423 #define FT_MULFIX_INLINED  FT_MULFIX_ASSEMBLER
 424 #endif
 425 #endif
 426
 427
 428 #ifdef FT_MAKE_OPTION_SINGLE_OBJECT
 429
 430 #define FT_LOCAL( x )      static  x
 431 #define FT_LOCAL_DEF( x )  static  x
 432
 433 #else
 434
 435 #ifdef __cplusplus
 436 #define FT_LOCAL( x )      extern "C"  x
 437 #define FT_LOCAL_DEF( x )  extern "C"  x
 438 #else
 439 #define FT_LOCAL( x )      extern  x
 440 #define FT_LOCAL_DEF( x )  x
 441 #endif
 442
 443 #endif /* FT_MAKE_OPTION_SINGLE_OBJECT */
 444
 445
 446 #ifndef FT_BASE
 447
 448 #ifdef __cplusplus
 449 #define FT_BASE( x )  extern "C"  x
 450 #else
 451 #define FT_BASE( x )  extern  x
 452 #endif
 453
 454 #endif /* !FT_BASE */
 455
 456
 457 #ifndef FT_BASE_DEF
 458
 459 #ifdef __cplusplus
 460 #define FT_BASE_DEF( x )  x
 461 #else
 462 #define FT_BASE_DEF( x )  x
 463 #endif
 464
 465 #endif /* !FT_BASE_DEF */
 466
 467
 468 #ifndef FT_EXPORT
 469
 470 #ifdef __cplusplus
 471 #define FT_EXPORT( x )  __attribute__((visibility("default"))) extern "C"  x
 472 #else
 473 #define FT_EXPORT( x )  __attribute__((visibility("default"))) extern  x
 474 #endif
 475
 476 #endif /* !FT_EXPORT */
 477
 478
 479 #ifndef FT_EXPORT_DEF
 480
 481 #ifdef __cplusplus
 482 #define FT_EXPORT_DEF( x )  __attribute__((visibility("default"))) extern "C"  x
 483 #else
 484 #define FT_EXPORT_DEF( x )  __attribute__((visibility("default"))) extern  x
 485 #endif
 486
 487 #endif /* !FT_EXPORT_DEF */
 488
 489
 490 #ifndef FT_EXPORT_VAR
 491
 492 #ifdef __cplusplus
 493 #define FT_EXPORT_VAR( x )  extern "C"  x
 494 #else
 495 #define FT_EXPORT_VAR( x )  extern  x
 496 #endif
 497
 498 #endif /* !FT_EXPORT_VAR */
 499
 500   /* The following macros are needed to compile the library with a   */
 501   /* C++ compiler and with 16bit compilers.                          */
 502   /*                                                                 */
 503
 504   /* This is special.  Within C++, you must specify `extern "C"' for */
 505   /* functions which are used via function pointers, and you also    */
 506   /* must do that for structures which contain function pointers to  */
 507   /* assure C linkage -- it's not possible to have (local) anonymous */
 508   /* functions which are accessed by (global) function pointers.     */
 509   /*                                                                 */
 510   /*                                                                 */
 511   /* FT_CALLBACK_DEF is used to _define_ a callback function.        */
 512   /*                                                                 */
 513   /* FT_CALLBACK_TABLE is used to _declare_ a constant variable that */
 514   /* contains pointers to callback functions.                        */
 515   /*                                                                 */
 516   /* FT_CALLBACK_TABLE_DEF is used to _define_ a constant variable   */
 517   /* that contains pointers to callback functions.                   */
 518   /*                                                                 */
 519   /*                                                                 */
 520   /* Some 16bit compilers have to redefine these macros to insert    */
 521   /* the infamous `_cdecl' or `__fastcall' declarations.             */
 522   /*                                                                 */
 523 #ifndef FT_CALLBACK_DEF
 524 #ifdef __cplusplus
 525 #define FT_CALLBACK_DEF( x )  extern "C"  x
 526 #else
 527 #define FT_CALLBACK_DEF( x )  static  x
 528 #endif
 529 #endif /* FT_CALLBACK_DEF */
 530
 531 #ifndef FT_CALLBACK_TABLE
 532 #ifdef __cplusplus
 533 #define FT_CALLBACK_TABLE      extern "C"
 534 #define FT_CALLBACK_TABLE_DEF  extern "C"
 535 #else
 536 #define FT_CALLBACK_TABLE      extern
 537 #define FT_CALLBACK_TABLE_DEF  /* nothing */
 538 #endif
 539 #endif /* FT_CALLBACK_TABLE */
 540
 541
 542 FT_END_HEADER
 543
 544
 545 #endif /* __FTCONFIG_H__ */
 546
 547
 548 /* END */