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 #include "wine/debug.h"
  23
  24 #include <stdarg.h>
  25
  26 #include "windef.h"
  27 #include "winbase.h"
  28 #include "winnls.h"
  29 #include "wingdi.h"
  30 #include "winuser.h"
  31 #include "winreg.h"
  32 #include "winternl.h"
  33 #include "icm.h"
  34
  35 #include "mscms_priv.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(mscms);
  38
  39 #ifdef HAVE_LCMS
  40
  41 static inline void MSCMS_adjust_endianess32( ULONG *ptr )
  42 {
  43 #ifndef WORDS_BIGENDIAN
  44     *ptr = RtlUlongByteSwap(*ptr);
  45 #endif
  46 }
  47
  48 void MSCMS_get_profile_header( icProfile *iccprofile, PROFILEHEADER *header )
  49 {
  50     unsigned int i;
  51
  52     memcpy( header, iccprofile, sizeof(PROFILEHEADER) );
  53
  54     /* ICC format is big-endian, swap bytes if necessary */
  55     for (i = 0; i < sizeof(PROFILEHEADER) / sizeof(ULONG); i++)
  56         MSCMS_adjust_endianess32( (ULONG *)header + i );
  57 }
  58
  59 void MSCMS_set_profile_header( icProfile *iccprofile, PROFILEHEADER *header )
  60 {
  61     unsigned int i;
  62     icHeader *iccheader = (icHeader *)iccprofile;
  63
  64     memcpy( iccheader, header, sizeof(icHeader) );
  65
  66     /* ICC format is big-endian, swap bytes if necessary */
  67     for (i = 0; i < sizeof(icHeader) / sizeof(ULONG); i++)
  68         MSCMS_adjust_endianess32( (ULONG *)iccheader + i );
  69 }
  70
  71 DWORD MSCMS_get_tag_count( icProfile *iccprofile )
  72 {
  73     ULONG count = iccprofile->count;
  74
  75     MSCMS_adjust_endianess32( &count );
  76     return count;
  77 }
  78
  79 void MSCMS_get_tag_by_index( icProfile *iccprofile, DWORD index, icTag *tag )
  80 {
  81     icTag *tmp = (icTag *)((char *)&iccprofile->data + index * sizeof(icTag));
  82
  83     tag->sig = tmp->sig;
  84     tag->offset = tmp->offset;
  85     tag->size = tmp->size;
  86
  87     MSCMS_adjust_endianess32( (ULONG *)&tag->sig );
  88     MSCMS_adjust_endianess32( (ULONG *)&tag->offset );
  89     MSCMS_adjust_endianess32( (ULONG *)&tag->size );
  90 }
  91
  92 void MSCMS_get_tag_data( icProfile *iccprofile, icTag *tag, DWORD offset, void *buffer )
  93 {
  94     memcpy( buffer, (char *)iccprofile + tag->offset + offset, tag->size - offset );
  95 }
  96
  97 void MSCMS_set_tag_data( icProfile *iccprofile, icTag *tag, DWORD offset, void *buffer )
  98 {
  99     memcpy( (char *)iccprofile + tag->offset + offset, buffer, tag->size - offset );
 100 }
 101
 102 DWORD MSCMS_get_profile_size( icProfile *iccprofile )
 103 {
 104     DWORD size = ((icHeader *)iccprofile)->size;
 105
 106     MSCMS_adjust_endianess32( (ULONG *)&size );
 107     return size;
 108 }
 109
 110 #endif /* HAVE_LCMS */