dlls/mscms/icc.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 "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 #define LCMS_API_FUNCTION(f) extern typeof(f) * p##f;
  36 #include "lcms_api.h"
  37 #undef LCMS_API_FUNCTION
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(mscms);
  40
  41 #ifdef HAVE_LCMS_H
  42
  43 static inline void MSCMS_adjust_endianess32( ULONG *ptr )
  44 {
  45 #ifndef WORDS_BIGENDIAN
  46     *ptr = RtlUlongByteSwap(*ptr);
  47 #endif
  48 }
  49
  50 void MSCMS_get_profile_header( icProfile *iccprofile, PROFILEHEADER *header )
  51 {
  52     unsigned int i;
  53
  54     memcpy( header, iccprofile, sizeof(PROFILEHEADER) );
  55
  56     /* ICC format is big-endian, swap bytes if necessary */
  57     for (i = 0; i < sizeof(PROFILEHEADER) / sizeof(ULONG); i++)
  58         MSCMS_adjust_endianess32( (ULONG *)header + i );
  59 }
  60
  61 void MSCMS_set_profile_header( icProfile *iccprofile, PROFILEHEADER *header )
  62 {
  63     unsigned int i;
  64     icHeader *iccheader = (icHeader *)iccprofile;
  65
  66     memcpy( iccheader, header, sizeof(icHeader) );
  67
  68     /* ICC format is big-endian, swap bytes if necessary */
  69     for (i = 0; i < sizeof(icHeader) / sizeof(ULONG); i++)
  70         MSCMS_adjust_endianess32( (ULONG *)iccheader + i );
  71 }
  72
  73 DWORD MSCMS_get_tag_count( icProfile *iccprofile )
  74 {
  75     ULONG count = iccprofile->count;
  76
  77     MSCMS_adjust_endianess32( &count );
  78     return count;
  79 }
  80
  81 void MSCMS_get_tag_by_index( icProfile *iccprofile, DWORD index, icTag *tag )
  82 {
  83     icTag *tmp = (icTag *)((char *)&iccprofile->data + index * sizeof(icTag));
  84
  85     tag->sig = tmp->sig;
  86     tag->offset = tmp->offset;
  87     tag->size = tmp->size;
  88
  89     MSCMS_adjust_endianess32( (ULONG *)&tag->sig );
  90     MSCMS_adjust_endianess32( (ULONG *)&tag->offset );
  91     MSCMS_adjust_endianess32( (ULONG *)&tag->size );
  92 }
  93
  94 void MSCMS_get_tag_data( icProfile *iccprofile, icTag *tag, DWORD offset, void *buffer )
  95 {
  96     memcpy( buffer, (char *)iccprofile + tag->offset + offset, tag->size - offset );
  97 }
  98
  99 void MSCMS_set_tag_data( icProfile *iccprofile, icTag *tag, DWORD offset, void *buffer )
 100 {
 101     memcpy( (char *)iccprofile + tag->offset + offset, buffer, tag->size - offset );
 102 }
 103
 104 #endif /* HAVE_LCMS_H */