1  /*
       2   * fontconfig/fontconfig/fcprivate.h
       3   *
       4   * Copyright © 2001 Keith Packard
       5   *
       6   * Permission to use, copy, modify, distribute, and sell this software and its
       7   * documentation for any purpose is hereby granted without fee, provided that
       8   * the above copyright notice appear in all copies and that both that
       9   * copyright notice and this permission notice appear in supporting
      10   * documentation, and that the name of the author(s) not be used in
      11   * advertising or publicity pertaining to distribution of the software without
      12   * specific, written prior permission.  The authors make no
      13   * representations about the suitability of this software for any purpose.  It
      14   * is provided "as is" without express or implied warranty.
      15   *
      16   * THE AUTHOR(S) DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
      17   * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
      18   * EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY SPECIAL, INDIRECT OR
      19   * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
      20   * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
      21   * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
      22   * PERFORMANCE OF THIS SOFTWARE.
      23   */
      24  
      25  #ifndef _FCPRIVATE_H_
      26  #define _FCPRIVATE_H_
      27  
      28  /*
      29   * I tried this with functions that took va_list* arguments
      30   * but portability concerns made me change these functions
      31   * into macros (sigh).
      32   */
      33  
      34  #define FcPatternVapBuild(result, orig, va)			    \
      35  {								    \
      36      FcPattern	*__p__ = (orig);				    \
      37      const char	*__o__;						    \
      38      FcValue	__v__;						    \
      39  								    \
      40      if (!__p__)							    \
      41      {								    \
      42  	__p__ = FcPatternCreate ();				    \
      43  	if (!__p__)		    				    \
      44  	    goto _FcPatternVapBuild_bail0;			    \
      45      }				    				    \
      46      for (;;)			    				    \
      47      {				    				    \
      48  	__o__ = va_arg (va, const char *);			    \
      49  	if (!__o__)		    				    \
      50  	    break;		    				    \
      51  	__v__.type = va_arg (va, int);				    \
      52  	switch (__v__.type) {	    				    \
      53  	case FcTypeUnknown:					    \
      54  	case FcTypeVoid:					    \
      55  	    goto _FcPatternVapBuild_bail1;       		    \
      56  	case FcTypeInteger:	    				    \
      57  	    __v__.u.i = va_arg (va, int);			    \
      58  	    break;						    \
      59  	case FcTypeDouble:					    \
      60  	    __v__.u.d = va_arg (va, double);			    \
      61  	    break;						    \
      62  	case FcTypeString:					    \
      63  	    __v__.u.s = va_arg (va, const FcChar8 *);		    \
      64  	    break;						    \
      65  	case FcTypeBool:					    \
      66  	    __v__.u.b = va_arg (va, FcBool);			    \
      67  	    break;						    \
      68  	case FcTypeMatrix:					    \
      69  	    __v__.u.m = va_arg (va, const FcMatrix *);		    \
      70  	    break;						    \
      71  	case FcTypeCharSet:					    \
      72  	    __v__.u.c = va_arg (va, const FcCharSet *); 	    \
      73  	    break;						    \
      74  	case FcTypeFTFace:					    \
      75  	    __v__.u.f = va_arg (va, FT_Face);			    \
      76  	    break;						    \
      77  	case FcTypeLangSet:					    \
      78  	    __v__.u.l = va_arg (va, const FcLangSet *);		    \
      79  	    break;						    \
      80  	case FcTypeRange:					    \
      81  	    __v__.u.r = va_arg (va, const FcRange *);		    \
      82  	    break;						    \
      83  	}							    \
      84  	if (!FcPatternAdd (__p__, __o__, __v__, FcTrue))	    \
      85  	    goto _FcPatternVapBuild_bail1;			    \
      86      }								    \
      87      result = __p__;						    \
      88      goto _FcPatternVapBuild_return;				    \
      89  								    \
      90  _FcPatternVapBuild_bail1:					    \
      91      if (!orig)							    \
      92  	FcPatternDestroy (__p__);				    \
      93  _FcPatternVapBuild_bail0:					    \
      94      result = (void*)0;						    \
      95  								    \
      96  _FcPatternVapBuild_return:					    \
      97      ;								    \
      98  }
      99  
     100  
     101  #define FcObjectSetVapBuild(__ret__, __first__, __va__) 		\
     102  {									\
     103      FcObjectSet    *__os__;						\
     104      const char	    *__ob__;						\
     105  									\
     106      __ret__ = 0;						    	\
     107      __os__ = FcObjectSetCreate ();					\
     108      if (!__os__)							\
     109  	goto _FcObjectSetVapBuild_bail0;				\
     110      __ob__ = __first__;							\
     111      while (__ob__)							\
     112      {									\
     113  	if (!FcObjectSetAdd (__os__, __ob__))				\
     114  	    goto _FcObjectSetVapBuild_bail1;				\
     115  	__ob__ = va_arg (__va__, const char *);				\
     116      }									\
     117      __ret__ = __os__;							\
     118  									\
     119  _FcObjectSetVapBuild_bail1:						\
     120      if (!__ret__ && __os__)					    	\
     121  	FcObjectSetDestroy (__os__);					\
     122  _FcObjectSetVapBuild_bail0:						\
     123      ;									\
     124  }
     125  
     126  #ifndef FC_ATTRIBUTE_VISIBILITY_HIDDEN
     127  #define FC_ATTRIBUTE_VISIBILITY_HIDDEN __attribute((visibility("hidden")))
     128  #endif
     129  
     130  #ifndef FC_ATTRIBUTE_VISIBILITY_EXPORT
     131  #define FC_ATTRIBUTE_VISIBILITY_EXPORT __attribute((visibility("default")))
     132  #endif
     133  
     134  #endif /* _FCPRIVATE_H_ */