dlls/mscms/mscms_main.c

   1 /*
   2  * MSCMS - Color Management System for Wine
   3  *
   4  * Copyright 2004 Hans Leidekker
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include "wine/port.h"
  24 #include "wine/debug.h"
  25 #include "wine/library.h"
  26
  27 #include <stdarg.h>
  28
  29 #include "windef.h"
  30 #include "winbase.h"
  31 #include "wingdi.h"
  32 #include "winuser.h"
  33 #include "icm.h"
  34
  35 #define LCMS_API_NO_REDEFINE
  36 #define LCMS_API_FUNCTION(f) typeof(f) * p##f;
  37 #include "lcms_api.h"
  38 #undef LCMS_API_FUNCTION
  39
  40 WINE_DEFAULT_DEBUG_CHANNEL(mscms);
  41
  42 #ifdef HAVE_LCMS_H
  43 #ifndef SONAME_LIBLCMS
  44 #define SONAME_LIBLCMS "liblcms.so"
  45 #endif
  46
  47 static void *lcmshandle = NULL;
  48 #endif /* HAVE_LCMS_H */
  49
  50 static BOOL MSCMS_init_lcms()
  51 {
  52 #ifdef HAVE_LCMS_H
  53     /* dynamically load lcms if not yet loaded */
  54     if (!lcmshandle)
  55     {
  56         lcmshandle = wine_dlopen( SONAME_LIBLCMS, RTLD_NOW, NULL, 0 );
  57
  58         /* We can't really do anything useful without liblcms */
  59         if (!lcmshandle)
  60         {
  61             WINE_MESSAGE(
  62             "Wine cannot find the LittleCMS library. To enable Wine to use color\n"
  63             "management functions please install a version of LittleCMS greater\n"
  64             "than or equal to 1.13.\n"
  65             "http://www.littlecms.com\n" );
  66
  67             return FALSE;
  68         }
  69     }
  70
  71     #define LOAD_FUNCPTR(f) \
  72             if ((p##f = wine_dlsym( lcmshandle, #f, NULL, 0 )) == NULL) \
  73                 goto sym_not_found;
  74
  75     LOAD_FUNCPTR(cmsCloseProfile);
  76     LOAD_FUNCPTR(cmsIsTag);
  77     LOAD_FUNCPTR(cmsOpenProfileFromFile);
  78     LOAD_FUNCPTR(cmsOpenProfileFromMem);
  79     #undef LOAD_FUNCPTR
  80
  81 return TRUE;
  82
  83 sym_not_found:
  84     WINE_MESSAGE(
  85       "Wine cannot find certain functions that it needs inside the LittleCMS\n"
  86       "library. To enable Wine to use LittleCMS for color management please\n"
  87       "upgrade liblcms to at least version 1.13.\n"
  88       "http://www.littlecms.com\n" );
  89
  90     wine_dlclose( lcmshandle, NULL, 0 );
  91     lcmshandle = NULL;
  92
  93     return FALSE;
  94
  95 #endif /* HAVE_LCMS_H */
  96     WINE_MESSAGE(
  97       "This version of Wine was compiled without support for color management\n"
  98       "functions. This means many color functions are empty stubs and you should\n"
  99       "expect your application to fail. To enable Wine to use LittleCMS for color\n"
 100       "management please install a liblcms development package version 1.13 or\n"
 101       "higher and rebuild Wine.\n"
 102       "http://www.littlecms.com\n" );
 103
 104     return TRUE;
 105 }
 106
 107 static void MSCMS_deinit_lcms()
 108 {
 109 #ifdef HAVE_LCMS_H
 110     if (lcmshandle)
 111     {
 112         wine_dlclose( lcmshandle, NULL, 0 );
 113         lcmshandle = NULL;
 114     }
 115 #endif /* HAVE_LCMS_H */
 116 }
 117
 118 BOOL WINAPI DllMain( HINSTANCE hinst, DWORD reason, LPVOID reserved )
 119 {
 120     TRACE( "(%p, 0x%08lx, %p)\n", hinst, reason, reserved );
 121
 122     switch (reason)
 123     {
 124     case DLL_PROCESS_ATTACH:
 125         return MSCMS_init_lcms();
 126
 127     case DLL_PROCESS_DETACH:
 128         MSCMS_deinit_lcms();
 129         break;
 130     }
 131
 132     return TRUE;
 133 }