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source: trunk/poppler/freetype2/include/freetype/config/ftconfig.h @ 262

Last change on this file since 262 was 262, checked in by Eugene Romanenko, 12 years ago
PDF plugin: freetype library updated to version 2.3.8
File size: 18.3 KB

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1	/***************************************************************************/
2	/* */
3	/* ftconfig.h */
4	/* */
5	/* ANSI-specific configuration file (specification only). */
6	/* */
7	/* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2007, 2008 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	#include <ft2build.h>
43	#include FT_CONFIG_OPTIONS_H
44	#include FT_CONFIG_STANDARD_LIBRARY_H
45
46
47	FT_BEGIN_HEADER
48
49
50	/*************************************************************************/
51	/* */
52	/* PLATFORM-SPECIFIC CONFIGURATION MACROS */
53	/* */
54	/* These macros can be toggled to suit a specific system. The current */
55	/* ones are defaults used to compile FreeType in an ANSI C environment */
56	/* (16bit compilers are also supported). Copy this file to your own */
57	/* `freetype/builds/<system>' directory, and edit it to port the engine. */
58	/* */
59	/*************************************************************************/
60
61
62	/* There are systems (like the Texas Instruments 'C54x) where a `char' */
63	/* has 16 bits. ANSI C says that sizeof(char) is always 1. Since an */
64	/* `int' has 16 bits also for this system, sizeof(int) gives 1 which */
65	/* is probably unexpected. */
66	/* */
67	/* `CHAR_BIT' (defined in limits.h) gives the number of bits in a */
68	/* `char' type. */
69
70	#ifndef FT_CHAR_BIT
71	#define FT_CHAR_BIT CHAR_BIT
72	#endif
73
74
75	/* The size of an `int' type. */
76	#if FT_UINT_MAX == 0xFFFFUL
77	#define FT_SIZEOF_INT (16 / FT_CHAR_BIT)
78	#elif FT_UINT_MAX == 0xFFFFFFFFUL
79	#define FT_SIZEOF_INT (32 / FT_CHAR_BIT)
80	#elif FT_UINT_MAX > 0xFFFFFFFFUL && FT_UINT_MAX == 0xFFFFFFFFFFFFFFFFUL
81	#define FT_SIZEOF_INT (64 / FT_CHAR_BIT)
82	#else
83	#error "Unsupported size of `int' type!"
84	#endif
85
86	/* The size of a `long' type. A five-byte `long' (as used e.g. on the */
87	/* DM642) is recognized but avoided. */
88	#if FT_ULONG_MAX == 0xFFFFFFFFUL
89	#define FT_SIZEOF_LONG (32 / FT_CHAR_BIT)
90	#elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFUL
91	#define FT_SIZEOF_LONG (32 / FT_CHAR_BIT)
92	#elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFFFFFFFUL
93	#define FT_SIZEOF_LONG (64 / FT_CHAR_BIT)
94	#else
95	#error "Unsupported size of `long' type!"
96	#endif
97
98
99	/* Preferred alignment of data */
100	#define FT_ALIGNMENT 8
101
102
103	/* FT_UNUSED is a macro used to indicate that a given parameter is not */
104	/* used -- this is only used to get rid of unpleasant compiler warnings */
105	#ifndef FT_UNUSED
106	#define FT_UNUSED( arg ) ( (arg) = (arg) )
107	#endif
108
109
110	/*************************************************************************/
111	/* */
112	/* AUTOMATIC CONFIGURATION MACROS */
113	/* */
114	/* These macros are computed from the ones defined above. Don't touch */
115	/* their definition, unless you know precisely what you are doing. No */
116	/* porter should need to mess with them. */
117	/* */
118	/*************************************************************************/
119
120
121	/*************************************************************************/
122	/* */
123	/* Mac support */
124	/* */
125	/* This is the only necessary change, so it is defined here instead */
126	/* providing a new configuration file. */
127	/* */
128	#if ( defined( __APPLE__ ) && !defined( DARWIN_NO_CARBON ) ) \|\| \
129	( defined( __MWERKS__ ) && defined( macintosh ) )
130	/* no Carbon frameworks for 64bit 10.4.x */
131	#include "AvailabilityMacros.h"
132	#if defined( __LP64__ ) && \
133	( MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_4 )
134	#define DARWIN_NO_CARBON 1
135	#else
136	#define FT_MACINTOSH 1
137	#endif
138
139	#elif defined( __SC__ ) \|\| defined( __MRC__ )
140	/* Classic MacOS compilers */
141	#include "ConditionalMacros.h"
142	#if TARGET_OS_MAC
143	#define FT_MACINTOSH 1
144	#endif
145
146	#endif
147
148
149	/*************************************************************************/
150	/* */
151	/* <Section> */
152	/* basic_types */
153	/* */
154	/*************************************************************************/
155
156
157	/*************************************************************************/
158	/* */
159	/* <Type> */
160	/* FT_Int16 */
161	/* */
162	/* <Description> */
163	/* A typedef for a 16bit signed integer type. */
164	/* */
165	typedef signed short FT_Int16;
166
167
168	/*************************************************************************/
169	/* */
170	/* <Type> */
171	/* FT_UInt16 */
172	/* */
173	/* <Description> */
174	/* A typedef for a 16bit unsigned integer type. */
175	/* */
176	typedef unsigned short FT_UInt16;
177
178	/* */
179
180
181	/* this #if 0 ... #endif clause is for documentation purposes */
182	#if 0
183
184	/*************************************************************************/
185	/* */
186	/* <Type> */
187	/* FT_Int32 */
188	/* */
189	/* <Description> */
190	/* A typedef for a 32bit signed integer type. The size depends on */
191	/* the configuration. */
192	/* */
193	typedef signed XXX FT_Int32;
194
195
196	/*************************************************************************/
197	/* */
198	/* <Type> */
199	/* FT_UInt32 */
200	/* */
201	/* A typedef for a 32bit unsigned integer type. The size depends on */
202	/* the configuration. */
203	/* */
204	typedef unsigned XXX FT_UInt32;
205
206	/* */
207
208	#endif
209
210	#if FT_SIZEOF_INT == (32 / FT_CHAR_BIT)
211
212	typedef signed int FT_Int32;
213	typedef unsigned int FT_UInt32;
214
215	#elif FT_SIZEOF_LONG == (32 / FT_CHAR_BIT)
216
217	typedef signed long FT_Int32;
218	typedef unsigned long FT_UInt32;
219
220	#else
221	#error "no 32bit type found -- please check your configuration files"
222	#endif
223
224
225	/* look up an integer type that is at least 32 bits */
226	#if FT_SIZEOF_INT >= (32 / FT_CHAR_BIT)
227
228	typedef int FT_Fast;
229	typedef unsigned int FT_UFast;
230
231	#elif FT_SIZEOF_LONG >= (32 / FT_CHAR_BIT)
232
233	typedef long FT_Fast;
234	typedef unsigned long FT_UFast;
235
236	#endif
237
238
239	/* determine whether we have a 64-bit int type for platforms without */
240	/* Autoconf */
241	#if FT_SIZEOF_LONG == (64 / FT_CHAR_BIT)
242
243	/* FT_LONG64 must be defined if a 64-bit type is available */
244	#define FT_LONG64
245	#define FT_INT64 long
246
247	#elif defined( _MSC_VER ) && _MSC_VER >= 900 /* Visual C++ (and Intel C++) */
248
249	/* this compiler provides the __int64 type */
250	#define FT_LONG64
251	#define FT_INT64 __int64
252
253	#elif defined( __BORLANDC__ ) /* Borland C++ */
254
255	/* XXXX: We should probably check the value of __BORLANDC__ in order */
256	/* to test the compiler version. */
257
258	/* this compiler provides the __int64 type */
259	#define FT_LONG64
260	#define FT_INT64 __int64
261
262	#elif defined( __WATCOMC__ ) /* Watcom C++ */
263
264	/* Watcom doesn't provide 64-bit data types */
265	#define FT_LONG64
266	#define FT_INT64 long long int
267
268	#elif defined( __MWERKS__ ) /* Metrowerks CodeWarrior */
269
270	#define FT_LONG64
271	#define FT_INT64 long long int
272
273	#elif defined( __GNUC__ )
274
275	/* GCC provides the `long long' type */
276	#define FT_LONG64
277	#define FT_INT64 long long int
278
279	#endif /* FT_SIZEOF_LONG == (64 / FT_CHAR_BIT) */
280
281
282	/*************************************************************************/
283	/* */
284	/* A 64-bit data type will create compilation problems if you compile */
285	/* in strict ANSI mode. To avoid them, we disable its use if __STDC__ */
286	/* is defined. You can however ignore this rule by defining the */
287	/* FT_CONFIG_OPTION_FORCE_INT64 configuration macro. */
288	/* */
289	#if defined( FT_LONG64 ) && !defined( FT_CONFIG_OPTION_FORCE_INT64 )
290
291	#ifdef __STDC__
292
293	/* undefine the 64-bit macros in strict ANSI compilation mode */
294	#undef FT_LONG64
295	#undef FT_INT64
296
297	#endif /* __STDC__ */
298
299	#endif /* FT_LONG64 && !FT_CONFIG_OPTION_FORCE_INT64 */
300
301
302	#define FT_BEGIN_STMNT do {
303	#define FT_END_STMNT } while ( 0 )
304	#define FT_DUMMY_STMNT FT_BEGIN_STMNT FT_END_STMNT
305
306
307	#ifndef FT_CONFIG_OPTION_NO_ASSEMBLER
308	/* Provide assembler fragments for performance-critical functions. */
309	/* These must be defined `static __inline__' with GCC. */
310
311	#ifdef __GNUC__
312
313	#if defined( __arm__ ) && !defined( __thumb__ )
314	#define FT_MULFIX_ASSEMBLER FT_MulFix_arm
315
316	/* documentation is in freetype.h */
317
318	static __inline__ FT_Int32
319	FT_MulFix_arm( FT_Int32 a,
320	FT_Int32 b )
321	{
322	register FT_Int32 t, t2;
323
324
325	asm __volatile__ (
326	"smull %1, %2, %4, %3\n\t" /* (lo=%1,hi=%2) = ab /
327	"mov %0, %2, asr #31\n\t" /* %0 = (hi >> 31) */
328	"add %0, %0, #0x8000\n\t" /* %0 += 0x8000 */
329	"adds %1, %1, %0\n\t" /* %1 += %0 */
330	"adc %2, %2, #0\n\t" /* %2 += carry */
331	"mov %0, %1, lsr #16\n\t" /* %0 = %1 >> 16 */
332	"orr %0, %2, lsl #16\n\t" /* %0 \|= %2 << 16 */
333	: "=r"(a), "=&r"(t2), "=&r"(t)
334	: "r"(a), "r"(b) );
335	return a;
336	}
337
338	#endif /* __arm__ && !__thumb__ */
339
340	#if defined( i386 )
341	#define FT_MULFIX_ASSEMBLER FT_MulFix_i386
342
343	/* documentation is in freetype.h */
344
345	static __inline__ FT_Int32
346	FT_MulFix_i386( FT_Int32 a,
347	FT_Int32 b )
348	{
349	register FT_Int32 result;
350
351
352	__asm__ __volatile__ (
353	"imul %%edx\n"
354	"movl %%edx, %%ecx\n"
355	"sarl $31, %%ecx\n"
356	"addl $0x8000, %%ecx\n"
357	"addl %%ecx, %%eax\n"
358	"adcl $0, %%edx\n"
359	"shrl $16, %%eax\n"
360	"shll $16, %%edx\n"
361	"addl %%edx, %%eax\n"
362	: "=a"(result), "+d"(b)
363	: "a"(a)
364	: "%ecx" );
365	return result;
366	}
367
368	#endif /* i386 */
369
370	#endif /* __GNUC__ */
371
372	#endif /* !FT_CONFIG_OPTION_NO_ASSEMBLER */
373
374
375	#ifdef FT_CONFIG_OPTION_INLINE_MULFIX
376	#ifdef FT_MULFIX_ASSEMBLER
377	#define FT_MULFIX_INLINED FT_MULFIX_ASSEMBLER
378	#endif
379	#endif
380
381
382	#ifdef FT_MAKE_OPTION_SINGLE_OBJECT
383
384	#define FT_LOCAL( x ) static x
385	#define FT_LOCAL_DEF( x ) static x
386
387	#else
388
389	#ifdef __cplusplus
390	#define FT_LOCAL( x ) extern "C" x
391	#define FT_LOCAL_DEF( x ) extern "C" x
392	#else
393	#define FT_LOCAL( x ) extern x
394	#define FT_LOCAL_DEF( x ) x
395	#endif
396
397	#endif /* FT_MAKE_OPTION_SINGLE_OBJECT */
398
399
400	#ifndef FT_BASE
401
402	#ifdef __cplusplus
403	#define FT_BASE( x ) extern "C" x
404	#else
405	#define FT_BASE( x ) extern x
406	#endif
407
408	#endif /* !FT_BASE */
409
410
411	#ifndef FT_BASE_DEF
412
413	#ifdef __cplusplus
414	#define FT_BASE_DEF( x ) x
415	#else
416	#define FT_BASE_DEF( x ) x
417	#endif
418
419	#endif /* !FT_BASE_DEF */
420
421
422	#ifndef FT_EXPORT
423
424	#ifdef __cplusplus
425	#define FT_EXPORT( x ) extern "C" x
426	#else
427	#define FT_EXPORT( x ) extern x
428	#endif
429
430	#endif /* !FT_EXPORT */
431
432
433	#ifndef FT_EXPORT_DEF
434
435	#ifdef __cplusplus
436	#define FT_EXPORT_DEF( x ) extern "C" x
437	#else
438	#define FT_EXPORT_DEF( x ) extern x
439	#endif
440
441	#endif /* !FT_EXPORT_DEF */
442
443
444	#ifndef FT_EXPORT_VAR
445
446	#ifdef __cplusplus
447	#define FT_EXPORT_VAR( x ) extern "C" x
448	#else
449	#define FT_EXPORT_VAR( x ) extern x
450	#endif
451
452	#endif /* !FT_EXPORT_VAR */
453
454	/* The following macros are needed to compile the library with a */
455	/* C++ compiler and with 16bit compilers. */
456	/* */
457
458	/* This is special. Within C++, you must specify `extern "C"' for */
459	/* functions which are used via function pointers, and you also */
460	/* must do that for structures which contain function pointers to */
461	/* assure C linkage -- it's not possible to have (local) anonymous */
462	/* functions which are accessed by (global) function pointers. */
463	/* */
464	/* */
465	/* FT_CALLBACK_DEF is used to _define_ a callback function. */
466	/* */
467	/* FT_CALLBACK_TABLE is used to _declare_ a constant variable that */
468	/* contains pointers to callback functions. */
469	/* */
470	/* FT_CALLBACK_TABLE_DEF is used to _define_ a constant variable */
471	/* that contains pointers to callback functions. */
472	/* */
473	/* */
474	/* Some 16bit compilers have to redefine these macros to insert */
475	/* the infamous `_cdecl' or `__fastcall' declarations. */
476	/* */
477	#ifndef FT_CALLBACK_DEF
478	#ifdef __cplusplus
479	#define FT_CALLBACK_DEF( x ) extern "C" x
480	#else
481	#define FT_CALLBACK_DEF( x ) static x
482	#endif
483	#endif /* FT_CALLBACK_DEF */
484
485	#ifndef FT_CALLBACK_TABLE
486	#ifdef __cplusplus
487	#define FT_CALLBACK_TABLE extern "C"
488	#define FT_CALLBACK_TABLE_DEF extern "C"
489	#else
490	#define FT_CALLBACK_TABLE extern
491	#define FT_CALLBACK_TABLE_DEF /* nothing */
492	#endif
493	#endif /* FT_CALLBACK_TABLE */
494
495
496	FT_END_HEADER
497
498
499	#endif /* __FTCONFIG_H__ */
500
501
502	/* END */

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