src/freetype/freetype/config/ftconfig.h

   1 /***************************************************************************/
   2 /*                                                                         */
   3 /*  ftconfig.h                                                             */
   4 /*                                                                         */
   5 /*    ANSI-specific configuration file (specification only).               */
   6 /*                                                                         */
   7 /*  Copyright 1996-2000 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
  39 #ifndef FTCONFIG_H
  40 #define FTCONFIG_H
  41
  42
  43   /* Include the header file containing all developer build options */
  44 #include <freetype/config/ftoption.h>
  45
  46
  47   /*************************************************************************/
  48   /*                                                                       */
  49   /*               PLATFORM-SPECIFIC CONFIGURATION MACROS                  */
  50   /*                                                                       */
  51   /* These macros can be toggled to suit a specific system.  The current   */
  52   /* ones are defaults used to compile FreeType in an ANSI C environment   */
  53   /* (16bit compilers are also supported).  Copy this file to your own     */
  54   /* `freetype/builds/<system>' directory, and edit it to port the engine. */
  55   /*                                                                       */
  56   /*************************************************************************/
  57
  58
  59   /* We use <limits.h> values to know the sizes of the types.  */
  60 #include <limits.h>
  61
  62   /* The number of bytes in an `int' type.  */
  63 #if   UINT_MAX == 0xFFFFFFFF
  64 #define FT_SIZEOF_INT  4
  65 #elif UINT_MAX == 0xFFFF
  66 #define FT_SIZEOF_INT  2
  67 #elif UINT_MAX > 0xFFFFFFFF && UINT_MAX == 0xFFFFFFFFFFFFFFFF
  68 #define FT_SIZEOF_INT  8
  69 #else
  70 #error "Unsupported number of bytes in `int' type!"
  71 #endif
  72
  73   /* The number of bytes in a `long' type.  */
  74 #if   ULONG_MAX == 0xFFFFFFFF
  75 #define FT_SIZEOF_LONG  4
  76 #elif ULONG_MAX > 0xFFFFFFFF && ULONG_MAX == 0xFFFFFFFFFFFFFFFF
  77 #define FT_SIZEOF_LONG  8
  78 #else
  79 #error "Unsupported number of bytes in `long' type!"
  80 #endif
  81
  82
  83   /* Preferred alignment of data */
  84 #define FT_ALIGNMENT  8
  85
  86
  87   /* UNUSED is a macro used to indicate that a given parameter is not used */
  88   /* -- this is only used to get rid of unpleasant compiler warnings       */
  89 #ifndef FT_UNUSED
  90 #define FT_UNUSED( arg )  ( (arg) = (arg) )
  91 #endif
  92
  93
  94   /*************************************************************************/
  95   /*                                                                       */
  96   /*                     AUTOMATIC CONFIGURATION MACROS                    */
  97   /*                                                                       */
  98   /* These macros are computed from the ones defined above.  Don't touch   */
  99   /* their definition, unless you know precisely what you are doing.  No   */
 100   /* porter should need to mess with them.                                 */
 101   /*                                                                       */
 102   /*************************************************************************/
 103
 104
 105   /*************************************************************************/
 106   /*                                                                       */
 107   /* IntN types                                                            */
 108   /*                                                                       */
 109   /*   Used to guarantee the size of some specific integers.               */
 110   /*                                                                       */
 111   typedef signed short    FT_Int16;
 112   typedef unsigned short  FT_UInt16;
 113
 114 #if FT_SIZEOF_INT == 4
 115
 116   typedef signed int      FT_Int32;
 117   typedef unsigned int    FT_UInt32;
 118
 119 #elif FT_SIZEOF_LONG == 4
 120
 121   typedef signed long     FT_Int32;
 122   typedef unsigned long   FT_UInt32;
 123
 124 #else
 125 #error "no 32bit type found -- please check your configuration files"
 126 #endif
 127
 128 #if FT_SIZEOF_LONG == 8
 129
 130   /* FT_LONG64 must be defined if a 64-bit type is available */
 131 #define FT_LONG64
 132 #define FT_INT64   long
 133
 134 #else
 135
 136
 137   /*************************************************************************/
 138   /*                                                                       */
 139   /* Many compilers provide the non-ANSI `long long' 64-bit type.  You can */
 140   /* activate it by defining the FTCALC_USE_LONG_LONG macro in             */
 141   /* `ftoption.h'.                                                         */
 142   /*                                                                       */
 143   /* Note that this will produce many -ansi warnings during library        */
 144   /* compilation, and that in many cases,  the generated code will be      */
 145   /* neither smaller nor faster!                                           */
 146   /*                                                                       */
 147 #ifdef FTCALC_USE_LONG_LONG
 148
 149 #define FT_LONG64
 150 #define FT_INT64   long long
 151
 152 #endif /* FTCALC_USE_LONG_LONG */
 153 #endif /* FT_SIZEOF_LONG == 8 */
 154
 155
 156 #ifdef FT_MAKE_OPTION_SINGLE_OBJECT
 157 #define  LOCAL_DEF   static
 158 #define  LOCAL_FUNC  static
 159 #else
 160 #define  LOCAL_DEF   extern
 161 #define  LOCAL_FUNC  /* nothing */
 162 #endif
 163
 164 #ifdef FT_MAKE_OPTION_SINGLE_LIBRARY_OBJECT
 165 #define  BASE_DEF( x )   static  x
 166 #define  BASE_FUNC( x )  static  x
 167 #else
 168 #define  BASE_DEF( x )   extern  x
 169 #define  BASE_FUNC( x )  extern  x
 170 #endif
 171
 172 #ifndef  FT_EXPORT_DEF
 173 #define  FT_EXPORT_DEF( x )   extern  x
 174 #endif
 175
 176 #ifndef  FT_EXPORT_FUNC
 177 #define  FT_EXPORT_FUNC( x )  extern  x
 178 #endif
 179
 180 #ifndef  FT_EXPORT_VAR
 181 #define  FT_EXPORT_VAR( x )   extern  x
 182 #endif
 183
 184 #endif /* FTCONFIG_H */
 185
 186
 187 /* END */