1 files changed, 153 insertions, 0 deletions
diff --git a/src/libparsec/sys_swap.cpp b/src/libparsec/sys_swap.cpp
new file mode 100644
index 0000000..ef86311
--- /dev/null
+++ b/src/libparsec/sys_swap.cpp
@@ -0,0 +1,153 @@
+/*
+ * PARSEC - Swap Endianness of Data
+ *
+ * $Author: uberlinuxguy $ - $Date: 2004/09/15 12:25:42 $
+ *
+ * Orginally written by:
+ *   Copyright (c) Andreas Varga       <sid@parsec.org>   1998-1999
+ *   Copyright (c) Markus Hadwiger     <msh@parsec.org>   1998-1999
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */ 
+
+// C library
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+// compilation flags/debug support
+#include "config.h"
+#include "debug.h"
+
+// general definitions
+#include "general.h"
+#include "gd_heads.h"
+#include "objstruc.h"
+
+// global externals
+#include "globals.h"
+
+// local module header
+#include "sys_swap.h"
+
+
+
+// swap endianness of packageheader_s -----------------------------------------
+//
+void SYS_SwapPackageHeader( packageheader_s *p )
+{
+	ASSERT( p != NULL );
+
+	p->numitems   = SWAP_32( p->numitems );
+	p->headersize = SWAP_32( p->headersize );
+	p->datasize   = SWAP_32( p->datasize );
+	p->packsize   = SWAP_32( p->packsize );
+}
+
+
+// swap endianness of packageheader_s -----------------------------------------
+//
+void SYS_SwapPFileInfo( pfileinfodisk_s *p )
+{
+	ASSERT( p != NULL );
+
+	p->foffset = SWAP_32( p->foffset );
+	p->flength = SWAP_32( p->flength );
+	p->fcurpos = SWAP_32( p->fcurpos );
+}
+
+
+// swap endianness of BdtHeader -----------------------------------------------
+//
+void SYS_SwapBdtHeader( BdtHeader *b )
+{
+	ASSERT( b != NULL );
+
+	b->width  = SWAP_32( b->width  );
+	b->height = SWAP_32( b->height );
+}
+
+
+// swap endianness of FntHeader -----------------------------------------------
+//
+void SYS_SwapFntHeader( FntHeader *f )
+{
+	ASSERT( f != NULL );
+
+	f->width  = SWAP_32( f->width  );
+	f->height = SWAP_32( f->height );
+}
+
+
+// swap endianness of TexHeader -----------------------------------------------
+//
+void SYS_SwapTexHeader( TexHeader *t )
+{
+	ASSERT( t != NULL );
+
+	t->width  = SWAP_32( t->width  );
+	t->height = SWAP_32( t->height );
+}
+
+
+// swap endianness of DemHeader -----------------------------------------------
+//
+void SYS_SwapDemHeader( DemHeader *d )
+{
+	ASSERT( d != NULL );
+
+	d->headersize  = SWAP_32( d->headersize );
+}
+
+
+// swap endianness of PfgHeader -----------------------------------------------
+//
+void SYS_SwapPfgHeader( PfgHeader *p )
+{
+	ASSERT( p != NULL );
+
+	p->srcwidth	= SWAP_32( p->srcwidth  );
+	p->width	= SWAP_16( p->width  );
+	p->height	= SWAP_16( p->height );
+}
+
+
+// swap endianness of font geometry table -------------------------------------
+//
+void SYS_SwapPfgTable( int fixsize, dword *geomtab, size_t tabsize )
+{
+	ASSERT( geomtab != NULL );
+
+	//NOTE:
+	// proportional fonts are swapped on-the-fly and need
+	// not be swapped here.
+
+#ifdef SYSTEM_BIG_ENDIAN
+
+	if ( fixsize ) {
+
+		ASSERT( ( tabsize & 0x03 ) == 0x00 );
+
+		for ( dword indx = 0; indx < tabsize; indx+=4 ) {
+			geomtab[ indx >> 2 ] = SWAP_32( geomtab[ indx >> 2 ] );
+		}
+	}
+
+#endif
+
+}
+
+
+