dlls/mscms/icc.c

   1 /*
   2  * MSCMS - Color Management System for Wine
   3  *
   4  * Copyright 2004, 2005 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <stdarg.h>
  24
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winnls.h"
  28 #include "wingdi.h"
  29 #include "winuser.h"
  30 #include "winreg.h"
  31 #include "winternl.h"
  32 #include "icm.h"
  33
  34 #include "mscms_priv.h"
  35
  36 #ifdef HAVE_LCMS
  37
  38 static inline void MSCMS_adjust_endianess32( ULONG *ptr )
  39 {
  40 #ifndef WORDS_BIGENDIAN
  41     *ptr = RtlUlongByteSwap(*ptr);
  42 #endif
  43 }
  44
  45 void MSCMS_get_profile_header( icProfile *iccprofile, PROFILEHEADER *header )
  46 {
  47     unsigned int i;
  48
  49     memcpy( header, iccprofile, sizeof(PROFILEHEADER) );
  50
  51     /* ICC format is big-endian, swap bytes if necessary */
  52     for (i = 0; i < sizeof(PROFILEHEADER) / sizeof(ULONG); i++)
  53         MSCMS_adjust_endianess32( (ULONG *)header + i );
  54 }
  55
  56 void MSCMS_set_profile_header( icProfile *iccprofile, PROFILEHEADER *header )
  57 {
  58     unsigned int i;
  59     icHeader *iccheader = (icHeader *)iccprofile;
  60
  61     memcpy( iccheader, header, sizeof(icHeader) );
  62
  63     /* ICC format is big-endian, swap bytes if necessary */
  64     for (i = 0; i < sizeof(icHeader) / sizeof(ULONG); i++)
  65         MSCMS_adjust_endianess32( (ULONG *)iccheader + i );
  66 }
  67
  68 DWORD MSCMS_get_tag_count( icProfile *iccprofile )
  69 {
  70     ULONG count = iccprofile->count;
  71
  72     MSCMS_adjust_endianess32( &count );
  73     return count;
  74 }
  75
  76 void MSCMS_get_tag_by_index( icProfile *iccprofile, DWORD index, icTag *tag )
  77 {
  78     icTag *tmp = (icTag *)((char *)&iccprofile->data + index * sizeof(icTag));
  79
  80     tag->sig = tmp->sig;
  81     tag->offset = tmp->offset;
  82     tag->size = tmp->size;
  83
  84     MSCMS_adjust_endianess32( (ULONG *)&tag->sig );
  85     MSCMS_adjust_endianess32( (ULONG *)&tag->offset );
  86     MSCMS_adjust_endianess32( (ULONG *)&tag->size );
  87 }
  88
  89 void MSCMS_get_tag_data( icProfile *iccprofile, icTag *tag, DWORD offset, void *buffer )
  90 {
  91     memcpy( buffer, (char *)iccprofile + tag->offset + offset, tag->size - offset );
  92 }
  93
  94 void MSCMS_set_tag_data( icProfile *iccprofile, icTag *tag, DWORD offset, void *buffer )
  95 {
  96     memcpy( (char *)iccprofile + tag->offset + offset, buffer, tag->size - offset );
  97 }
  98
  99 DWORD MSCMS_get_profile_size( icProfile *iccprofile )
 100 {
 101     DWORD size = ((icHeader *)iccprofile)->size;
 102
 103     MSCMS_adjust_endianess32( (ULONG *)&size );
 104     return size;
 105 }
 106
 107 #endif /* HAVE_LCMS */