dlls/mscms/handle.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 #include <stdarg.h>
  23
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #include "wingdi.h"
  27 #include "winuser.h"
  28 #include "icm.h"
  29
  30 #include "mscms_priv.h"
  31
  32 #ifdef HAVE_LCMS_H
  33
  34 static CRITICAL_SECTION MSCMS_handle_cs;
  35 static CRITICAL_SECTION_DEBUG MSCMS_handle_cs_debug =
  36 {
  37     0, 0, &MSCMS_handle_cs,
  38     { &MSCMS_handle_cs_debug.ProcessLocksList,
  39       &MSCMS_handle_cs_debug.ProcessLocksList },
  40       0, 0, { 0, (DWORD)(__FILE__ ": MSCMS_handle_cs") }
  41 };
  42 static CRITICAL_SECTION MSCMS_handle_cs = { &MSCMS_handle_cs_debug, -1, 0, 0, 0, 0 };
  43
  44 /*  A simple structure to tie together Windows file handles and lcms color
  45  *  profile handles. Windows color profile handles are built from indexes
  46  *  into an array of these structures. The 'file' field is set to NULL in
  47  *  case of a memory based profile
  48  */
  49
  50 struct handlemap
  51 {
  52     HANDLE file;
  53     cmsHPROFILE cmsprofile;
  54 };
  55
  56 #define CMSMAXHANDLES 0x80
  57
  58 static struct handlemap handlemaptable[CMSMAXHANDLES];
  59
  60 HPROFILE MSCMS_cmsprofile2hprofile( cmsHPROFILE cmsprofile )
  61 {
  62     HPROFILE ret = NULL;
  63     unsigned int i;
  64
  65     if (!cmsprofile) return ret;
  66
  67     EnterCriticalSection( &MSCMS_handle_cs );
  68
  69     for (i = 0; i <= CMSMAXHANDLES; i++)
  70     {
  71         if (handlemaptable[i].cmsprofile == cmsprofile)
  72         {
  73             ret = (HPROFILE)(i + 1); goto out;
  74         }
  75     }
  76
  77 out:
  78     LeaveCriticalSection( &MSCMS_handle_cs );
  79
  80     return ret;
  81 }
  82
  83 cmsHPROFILE MSCMS_hprofile2cmsprofile( HPROFILE profile )
  84 {
  85     HANDLE ret;
  86     unsigned int i;
  87
  88     EnterCriticalSection( &MSCMS_handle_cs );
  89
  90     i = (unsigned int)profile - 1;
  91     ret = handlemaptable[i].cmsprofile;
  92
  93     LeaveCriticalSection( &MSCMS_handle_cs );
  94
  95     return ret;
  96 }
  97
  98 HANDLE MSCMS_hprofile2handle( HPROFILE profile )
  99 {
 100     HANDLE ret;
 101     unsigned int i;
 102
 103     EnterCriticalSection( &MSCMS_handle_cs );
 104
 105     i = (unsigned int)profile - 1;
 106     ret = handlemaptable[i].file;
 107
 108     LeaveCriticalSection( &MSCMS_handle_cs );
 109
 110     return ret;
 111 }
 112
 113 HPROFILE MSCMS_create_hprofile_handle( HANDLE file, cmsHPROFILE cmsprofile )
 114 {
 115     HPROFILE ret = NULL;
 116     unsigned int i;
 117
 118     if (!cmsprofile) return ret;
 119
 120     EnterCriticalSection( &MSCMS_handle_cs );
 121
 122     for (i = 0; i <= CMSMAXHANDLES; i++)
 123     {
 124         if (handlemaptable[i].cmsprofile == 0)
 125         {
 126             handlemaptable[i].file = file;
 127             handlemaptable[i].cmsprofile = cmsprofile;
 128
 129             ret = (HPROFILE)(i + 1); goto out;
 130         }
 131     }
 132
 133 out:
 134     LeaveCriticalSection( &MSCMS_handle_cs );
 135
 136     return ret;
 137 }
 138
 139 void MSCMS_destroy_hprofile_handle( HPROFILE profile )
 140 {
 141     unsigned int i;
 142
 143     if (profile)
 144     {
 145         EnterCriticalSection( &MSCMS_handle_cs );
 146
 147         i = (unsigned int)profile - 1;
 148         memset( &handlemaptable[i], 0, sizeof(struct handlemap) );
 149
 150         LeaveCriticalSection( &MSCMS_handle_cs );
 151     }
 152 }
 153
 154 #endif /* HAVE_LCMS_H */