/* * MSCMS - Color Management System for Wine * * Copyright 2004, 2005 Hans Leidekker * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ #include "config.h" #include <stdarg.h> #include "windef.h" #include "winbase.h" #include "wingdi.h" #include "winuser.h" #include "winternl.h" #include "icm.h" #include "mscms_priv.h" #ifdef HAVE_LCMS2 static inline void adjust_endianness32( ULONG *ptr ) { #ifndef WORDS_BIGENDIAN *ptr = RtlUlongByteSwap(*ptr); #endif } void get_profile_header( const struct profile *profile, PROFILEHEADER *header ) { unsigned int i; memcpy( header, profile->data, sizeof(PROFILEHEADER) ); /* ICC format is big-endian, swap bytes if necessary */ for (i = 0; i < sizeof(PROFILEHEADER) / sizeof(ULONG); i++) adjust_endianness32( (ULONG *)header + i ); } void set_profile_header( const struct profile *profile, const PROFILEHEADER *header ) { unsigned int i; memcpy( profile->data, header, sizeof(PROFILEHEADER) ); /* ICC format is big-endian, swap bytes if necessary */ for (i = 0; i < sizeof(PROFILEHEADER) / sizeof(ULONG); i++) adjust_endianness32( (ULONG *)profile->data + i ); } static BOOL get_adjusted_tag( const struct profile *profile, TAGTYPE type, cmsTagEntry *tag ) { DWORD i, num_tags = *(DWORD *)(profile->data + sizeof(cmsICCHeader)); cmsTagEntry *entry; ULONG sig; adjust_endianness32( &num_tags ); for (i = 0; i < num_tags; i++) { entry = (cmsTagEntry *)(profile->data + sizeof(cmsICCHeader) + sizeof(DWORD) + i * sizeof(*tag)); sig = entry->sig; adjust_endianness32( &sig ); if (sig == type) { tag->sig = sig; tag->offset = entry->offset; tag->size = entry->size; adjust_endianness32( &tag->offset ); adjust_endianness32( &tag->size ); return TRUE; } } return FALSE; } BOOL get_tag_data( const struct profile *profile, TAGTYPE type, DWORD offset, void *buffer, DWORD *len ) { cmsTagEntry tag; if (!get_adjusted_tag( profile, type, &tag )) return FALSE; if (!buffer) offset = 0; if (offset > tag.size) return FALSE; if (*len < tag.size - offset || !buffer) { *len = tag.size - offset; return FALSE; } memcpy( buffer, profile->data + tag.offset + offset, tag.size - offset ); *len = tag.size - offset; return TRUE; } BOOL set_tag_data( const struct profile *profile, TAGTYPE type, DWORD offset, const void *buffer, DWORD *len ) { cmsTagEntry tag; if (!get_adjusted_tag( profile, type, &tag )) return FALSE; if (offset > tag.size) return FALSE; *len = min( tag.size - offset, *len ); memcpy( profile->data + tag.offset + offset, buffer, *len ); return TRUE; } #endif /* HAVE_LCMS2 */