1 /***************************************************************************/
5 /* ANSI-specific configuration file (specification only). */
7 /* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2007, 2008, 2010 by */
8 /* David Turner, Robert Wilhelm, and Werner Lemberg. */
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. */
16 /***************************************************************************/
19 /*************************************************************************/
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 */
27 /* Note however that if some specific modifications are needed, we */
28 /* advise you to place a modified copy in your build directory. */
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. */
34 /* This ANSI version should stay in `include/freetype/config'. */
36 /*************************************************************************/
38 #ifndef __FTCONFIG_H__
39 #define __FTCONFIG_H__
42 #include FT_CONFIG_OPTIONS_H
43 #include FT_CONFIG_STANDARD_LIBRARY_H
49 /*************************************************************************/
51 /* PLATFORM-SPECIFIC CONFIGURATION MACROS */
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. */
58 /*************************************************************************/
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. */
66 /* `CHAR_BIT' (defined in limits.h) gives the number of bits in a */
70 #define FT_CHAR_BIT CHAR_BIT
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)
82 #error "Unsupported size of `int' type!"
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)
94 #error "Unsupported size of `long' type!"
98 /* Preferred alignment of data */
99 #define FT_ALIGNMENT 8
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 */
105 #define FT_UNUSED( arg ) ( (arg) = (arg) )
109 /*************************************************************************/
111 /* AUTOMATIC CONFIGURATION MACROS */
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. */
117 /*************************************************************************/
120 /*************************************************************************/
124 /* This is the only necessary change, so it is defined here instead */
125 /* providing a new configuration file. */
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
135 #define FT_MACINTOSH 1
138 #elif defined( __SC__ ) || defined( __MRC__ )
139 /* Classic MacOS compilers */
140 #include "ConditionalMacros.h"
142 #define FT_MACINTOSH 1
148 /*************************************************************************/
153 /*************************************************************************/
156 /*************************************************************************/
162 /* A typedef for a 16bit signed integer type. */
164 typedef signed short FT_Int16
;
167 /*************************************************************************/
173 /* A typedef for a 16bit unsigned integer type. */
175 typedef unsigned short FT_UInt16
;
180 /* this #if 0 ... #endif clause is for documentation purposes */
183 /*************************************************************************/
189 /* A typedef for a 32bit signed integer type. The size depends on */
190 /* the configuration. */
192 typedef signed XXX FT_Int32
;
195 /*************************************************************************/
200 /* A typedef for a 32bit unsigned integer type. The size depends on */
201 /* the configuration. */
203 typedef unsigned XXX FT_UInt32
;
209 #if FT_SIZEOF_INT == (32 / FT_CHAR_BIT)
211 typedef signed int FT_Int32
;
212 typedef unsigned int FT_UInt32
;
214 #elif FT_SIZEOF_LONG == (32 / FT_CHAR_BIT)
216 typedef signed long FT_Int32
;
217 typedef unsigned long FT_UInt32
;
220 #error "no 32bit type found -- please check your configuration files"
224 /* look up an integer type that is at least 32 bits */
225 #if FT_SIZEOF_INT >= (32 / FT_CHAR_BIT)
228 typedef unsigned int FT_UFast
;
230 #elif FT_SIZEOF_LONG >= (32 / FT_CHAR_BIT)
232 typedef long FT_Fast
;
233 typedef unsigned long FT_UFast
;
238 /* determine whether we have a 64-bit int type for platforms without */
240 #if FT_SIZEOF_LONG == (64 / FT_CHAR_BIT)
242 /* FT_LONG64 must be defined if a 64-bit type is available */
244 #define FT_INT64 long
246 #elif defined( _MSC_VER ) && _MSC_VER >= 900 /* Visual C++ (and Intel C++) */
248 /* this compiler provides the __int64 type */
250 #define FT_INT64 __int64
252 #elif defined( __BORLANDC__ ) /* Borland C++ */
254 /* XXXX: We should probably check the value of __BORLANDC__ in order */
255 /* to test the compiler version. */
257 /* this compiler provides the __int64 type */
259 #define FT_INT64 __int64
261 #elif defined( __WATCOMC__ ) /* Watcom C++ */
263 /* Watcom doesn't provide 64-bit data types */
265 #elif defined( __MWERKS__ ) /* Metrowerks CodeWarrior */
268 #define FT_INT64 long long int
270 #elif defined( __GNUC__ )
272 /* GCC provides the `long long' type */
274 #define FT_INT64 long long int
276 #endif /* FT_SIZEOF_LONG == (64 / FT_CHAR_BIT) */
279 /*************************************************************************/
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. */
286 #if defined( FT_LONG64 ) && !defined( FT_CONFIG_OPTION_FORCE_INT64 )
290 /* undefine the 64-bit macros in strict ANSI compilation mode */
294 #endif /* __STDC__ */
296 #endif /* FT_LONG64 && !FT_CONFIG_OPTION_FORCE_INT64 */
299 #define FT_BEGIN_STMNT do {
300 #define FT_END_STMNT } while ( 0 )
301 #define FT_DUMMY_STMNT FT_BEGIN_STMNT FT_END_STMNT
304 #ifndef FT_CONFIG_OPTION_NO_ASSEMBLER
305 /* Provide assembler fragments for performance-critical functions. */
306 /* These must be defined `static __inline__' with GCC. */
308 #if defined( __CC_ARM ) || defined( __ARMCC__ ) /* RVCT */
309 #define FT_MULFIX_ASSEMBLER FT_MulFix_arm
311 /* documentation is in freetype.h */
313 static __inline FT_Int32
314 FT_MulFix_arm( FT_Int32 a
,
317 register FT_Int32 t
, t2
;
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 */
333 #endif /* __CC_ARM || __ARMCC__ */
338 #if defined( __arm__ ) && !defined( __thumb__ ) && \
339 !( defined( __CC_ARM ) || defined( __ARMCC__ ) )
340 #define FT_MULFIX_ASSEMBLER FT_MulFix_arm
342 /* documentation is in freetype.h */
344 static __inline__ FT_Int32
345 FT_MulFix_arm( FT_Int32 a
,
348 register FT_Int32 t
, t2
;
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
)
364 #endif /* __arm__ && !__thumb__ && !( __CC_ARM || __ARMCC__ ) */
367 #define FT_MULFIX_ASSEMBLER FT_MulFix_i386
369 /* documentation is in freetype.h */
371 static __inline__ FT_Int32
372 FT_MulFix_i386( FT_Int32 a
,
375 register FT_Int32 result
;
378 __asm__
__volatile__ (
380 "movl %%edx, %%ecx\n"
382 "addl $0x8000, %%ecx\n"
383 "addl %%ecx, %%eax\n"
387 "addl %%edx, %%eax\n"
388 : "=a"(result
), "=d"(b
)
396 #endif /* __GNUC__ */
398 #endif /* !FT_CONFIG_OPTION_NO_ASSEMBLER */
401 #ifdef FT_CONFIG_OPTION_INLINE_MULFIX
402 #ifdef FT_MULFIX_ASSEMBLER
403 #define FT_MULFIX_INLINED FT_MULFIX_ASSEMBLER
408 #ifdef FT_MAKE_OPTION_SINGLE_OBJECT
410 #define FT_LOCAL( x ) static x
411 #define FT_LOCAL_DEF( x ) static x
416 #define FT_LOCAL( x ) extern "C" x
417 #define FT_LOCAL_DEF( x ) extern "C" x
419 #define FT_LOCAL( x ) extern x
420 #define FT_LOCAL_DEF( x ) x
423 #endif /* FT_MAKE_OPTION_SINGLE_OBJECT */
429 #define FT_BASE( x ) extern "C" x
431 #define FT_BASE( x ) extern x
434 #endif /* !FT_BASE */
440 #define FT_BASE_DEF( x ) x
442 #define FT_BASE_DEF( x ) x
445 #endif /* !FT_BASE_DEF */
451 #define FT_EXPORT( x ) extern "C" x
453 #define FT_EXPORT( x ) extern x
456 #endif /* !FT_EXPORT */
459 #ifndef FT_EXPORT_DEF
462 #define FT_EXPORT_DEF( x ) extern "C" x
464 #define FT_EXPORT_DEF( x ) extern x
467 #endif /* !FT_EXPORT_DEF */
470 #ifndef FT_EXPORT_VAR
473 #define FT_EXPORT_VAR( x ) extern "C" x
475 #define FT_EXPORT_VAR( x ) extern x
478 #endif /* !FT_EXPORT_VAR */
480 /* The following macros are needed to compile the library with a */
481 /* C++ compiler and with 16bit compilers. */
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. */
491 /* FT_CALLBACK_DEF is used to _define_ a callback function. */
493 /* FT_CALLBACK_TABLE is used to _declare_ a constant variable that */
494 /* contains pointers to callback functions. */
496 /* FT_CALLBACK_TABLE_DEF is used to _define_ a constant variable */
497 /* that contains pointers to callback functions. */
500 /* Some 16bit compilers have to redefine these macros to insert */
501 /* the infamous `_cdecl' or `__fastcall' declarations. */
503 #ifndef FT_CALLBACK_DEF
505 #define FT_CALLBACK_DEF( x ) extern "C" x
507 #define FT_CALLBACK_DEF( x ) static x
509 #endif /* FT_CALLBACK_DEF */
511 #ifndef FT_CALLBACK_TABLE
513 #define FT_CALLBACK_TABLE extern "C"
514 #define FT_CALLBACK_TABLE_DEF extern "C"
516 #define FT_CALLBACK_TABLE extern
517 #define FT_CALLBACK_TABLE_DEF /* nothing */
519 #endif /* FT_CALLBACK_TABLE */
525 #endif /* __FTCONFIG_H__ */