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-rw-r--r--src/pcf/pcfutil.c104
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diff --git a/src/pcf/pcfutil.c b/src/pcf/pcfutil.c
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+/*
+
+Copyright 1990, 1994, 1998 The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+
+*/
+/* $XFree86: xc/lib/font/util/utilbitmap.c,v 1.3 1999/08/22 08:58:58 dawes Exp $ */
+
+/*
+ * Author: Keith Packard, MIT X Consortium
+ */
+
+/* Modified for use with FreeType */
+
+
+#include <ft2build.h>
+#include "pcfutil.h"
+
+
+ /*
+ * Invert bit order within each BYTE of an array.
+ */
+
+ FT_LOCAL_DEF( void )
+ BitOrderInvert( unsigned char* buf,
+ int nbytes )
+ {
+ for ( ; --nbytes >= 0; buf++ )
+ {
+ unsigned int val = *buf;
+
+
+ val = ( ( val >> 1 ) & 0x55 ) | ( ( val << 1 ) & 0xAA );
+ val = ( ( val >> 2 ) & 0x33 ) | ( ( val << 2 ) & 0xCC );
+ val = ( ( val >> 4 ) & 0x0F ) | ( ( val << 4 ) & 0xF0 );
+
+ *buf = (unsigned char)val;
+ }
+ }
+
+
+ /*
+ * Invert byte order within each 16-bits of an array.
+ */
+
+ FT_LOCAL_DEF( void )
+ TwoByteSwap( unsigned char* buf,
+ int nbytes )
+ {
+ unsigned char c;
+
+
+ for ( ; nbytes >= 2; nbytes -= 2, buf += 2 )
+ {
+ c = buf[0];
+ buf[0] = buf[1];
+ buf[1] = c;
+ }
+ }
+
+ /*
+ * Invert byte order within each 32-bits of an array.
+ */
+
+ FT_LOCAL_DEF( void )
+ FourByteSwap( unsigned char* buf,
+ int nbytes )
+ {
+ unsigned char c;
+
+
+ for ( ; nbytes >= 4; nbytes -= 4, buf += 4 )
+ {
+ c = buf[0];
+ buf[0] = buf[3];
+ buf[3] = c;
+
+ c = buf[1];
+ buf[1] = buf[2];
+ buf[2] = c;
+ }
+ }
+
+
+/* END */