maskbits.c

远程桌面连接工具

/* $XConsortium: maskbits.c,v 1.16 95/04/07 18:59:14 kaleb Exp $ */
/* Combined Purdue/PurduePlus patches, level 2.0, 1/17/89 */
/*

Copyright (c) 1987  X Consortium

Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:

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 X CONSORTIUM 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 X Consortium 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 X Consortium.


Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts,

	All Rights Reserved

Permission to use, copy, modify, and distribute this software and its 
documentation for any purpose and without fee is hereby granted, 
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in 
supporting documentation, and that the name of Digital not be
used in advertising or publicity pertaining to distribution of the
software without specific, written prior permission.  

DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
SOFTWARE.

*/

#include "maskbits.h"
#include "servermd.h"

/*
these tables are used by several macros in the mfb code.

   the vax numbers everything left to right, so bit indices on the
screen match bit indices in longwords.  the pc-rt and Sun number
bits on the screen the way they would be written on paper,
(i.e. msb to the left), and so a bit index n on the screen is
bit index PPW-n in a longword

   see also maskbits.h
*/

#if (BITMAP_BIT_ORDER == MSBFirst)
/* NOTE:
the first element in starttab could be 0xffffffff.  making it 0
lets us deal with a full first word in the middle loop, rather
than having to do the multiple reads and masks that we'd
have to do if we thought it was partial.
*/
PixelType starttab[PPW+1] =
    {
	LONG2CHARS( 0x00000000 ),
#if PPW == 64
	LONG2CHARS( 0x7FFFFFFFFFFFFFFF ),
	LONG2CHARS( 0x3FFFFFFFFFFFFFFF ),
	LONG2CHARS( 0x1FFFFFFFFFFFFFFF ),
	LONG2CHARS( 0x0FFFFFFFFFFFFFFF ),
	LONG2CHARS( 0x07FFFFFFFFFFFFFF ),
	LONG2CHARS( 0x03FFFFFFFFFFFFFF ),
	LONG2CHARS( 0x01FFFFFFFFFFFFFF ),
	LONG2CHARS( 0x00FFFFFFFFFFFFFF ),
	LONG2CHARS( 0x007FFFFFFFFFFFFF ),
	LONG2CHARS( 0x003FFFFFFFFFFFFF ),
	LONG2CHARS( 0x001FFFFFFFFFFFFF ),
	LONG2CHARS( 0x000FFFFFFFFFFFFF ),
	LONG2CHARS( 0x0007FFFFFFFFFFFF ),
	LONG2CHARS( 0x0003FFFFFFFFFFFF ),
	LONG2CHARS( 0x0001FFFFFFFFFFFF ),
	LONG2CHARS( 0x0000FFFFFFFFFFFF ),
	LONG2CHARS( 0x00007FFFFFFFFFFF ),
	LONG2CHARS( 0x00003FFFFFFFFFFF ),
	LONG2CHARS( 0x00001FFFFFFFFFFF ),
	LONG2CHARS( 0x00000FFFFFFFFFFF ),
	LONG2CHARS( 0x000007FFFFFFFFFF ),
	LONG2CHARS( 0x000003FFFFFFFFFF ),
	LONG2CHARS( 0x000001FFFFFFFFFF ),
	LONG2CHARS( 0x000000FFFFFFFFFF ),
	LONG2CHARS( 0x0000007FFFFFFFFF ),
	LONG2CHARS( 0x0000003FFFFFFFFF ),
	LONG2CHARS( 0x0000001FFFFFFFFF ),
	LONG2CHARS( 0x0000000FFFFFFFFF ),
	LONG2CHARS( 0x00000007FFFFFFFF ),
	LONG2CHARS( 0x00000003FFFFFFFF ),
	LONG2CHARS( 0x00000001FFFFFFFF ),
	LONG2CHARS( 0x00000000FFFFFFFF ),
#endif /* PPW == 64 */
	LONG2CHARS( 0x7FFFFFFF ),
	LONG2CHARS( 0x3FFFFFFF ),
	LONG2CHARS( 0x1FFFFFFF ),
	LONG2CHARS( 0x0FFFFFFF ),
	LONG2CHARS( 0x07FFFFFF ),
	LONG2CHARS( 0x03FFFFFF ),
	LONG2CHARS( 0x01FFFFFF ),
	LONG2CHARS( 0x00FFFFFF ),
	LONG2CHARS( 0x007FFFFF ),
	LONG2CHARS( 0x003FFFFF ),
	LONG2CHARS( 0x001FFFFF ),
	LONG2CHARS( 0x000FFFFF ),
	LONG2CHARS( 0x0007FFFF ),
	LONG2CHARS( 0x0003FFFF ),
	LONG2CHARS( 0x0001FFFF ),
	LONG2CHARS( 0x0000FFFF ),
	LONG2CHARS( 0x00007FFF ),
	LONG2CHARS( 0x00003FFF ),
	LONG2CHARS( 0x00001FFF ),
	LONG2CHARS( 0x00000FFF ),
	LONG2CHARS( 0x000007FF ),
	LONG2CHARS( 0x000003FF ),
	LONG2CHARS( 0x000001FF ),
	LONG2CHARS( 0x000000FF ),
	LONG2CHARS( 0x0000007F ),
	LONG2CHARS( 0x0000003F ),
	LONG2CHARS( 0x0000001F ),
	LONG2CHARS( 0x0000000F ),
	LONG2CHARS( 0x00000007 ),
	LONG2CHARS( 0x00000003 ),
	LONG2CHARS( 0x00000001 ),
	LONG2CHARS( 0x00000000 )
    };

PixelType endtab[PPW+1] =
    {
#if PPW == 32
	LONG2CHARS( 0x00000000 ),
	LONG2CHARS( 0x80000000 ),
	LONG2CHARS( 0xC0000000 ),
	LONG2CHARS( 0xE0000000 ),
	LONG2CHARS( 0xF0000000 ),
	LONG2CHARS( 0xF8000000 ),
	LONG2CHARS( 0xFC000000 ),
	LONG2CHARS( 0xFE000000 ),
	LONG2CHARS( 0xFF000000 ),
	LONG2CHARS( 0xFF800000 ),
	LONG2CHARS( 0xFFC00000 ),
	LONG2CHARS( 0xFFE00000 ),
	LONG2CHARS( 0xFFF00000 ),
	LONG2CHARS( 0xFFF80000 ),
	LONG2CHARS( 0xFFFC0000 ),
	LONG2CHARS( 0xFFFE0000 ),
	LONG2CHARS( 0xFFFF0000 ),
	LONG2CHARS( 0xFFFF8000 ),
	LONG2CHARS( 0xFFFFC000 ),
	LONG2CHARS( 0xFFFFE000 ),
	LONG2CHARS( 0xFFFFF000 ),
	LONG2CHARS( 0xFFFFF800 ),
	LONG2CHARS( 0xFFFFFC00 ),
	LONG2CHARS( 0xFFFFFE00 ),
	LONG2CHARS( 0xFFFFFF00 ),
	LONG2CHARS( 0xFFFFFF80 ),
	LONG2CHARS( 0xFFFFFFC0 ),
	LONG2CHARS( 0xFFFFFFE0 ),
	LONG2CHARS( 0xFFFFFFF0 ),
	LONG2CHARS( 0xFFFFFFF8 ),
	LONG2CHARS( 0xFFFFFFFC ),
	LONG2CHARS( 0xFFFFFFFE ),
	LONG2CHARS( 0xFFFFFFFF )
#else /* PPW */
	LONG2CHARS( 0x0000000000000000 ),
	LONG2CHARS( 0x8000000000000000 ),
	LONG2CHARS( 0xC000000000000000 ),
	LONG2CHARS( 0xE000000000000000 ),
	LONG2CHARS( 0xF000000000000000 ),
	LONG2CHARS( 0xF800000000000000 ),
	LONG2CHARS( 0xFC00000000000000 ),
	LONG2CHARS( 0xFE00000000000000 ),
	LONG2CHARS( 0xFF00000000000000 ),
	LONG2CHARS( 0xFF80000000000000 ),
	LONG2CHARS( 0xFFC0000000000000 ),
	LONG2CHARS( 0xFFE0000000000000 ),
	LONG2CHARS( 0xFFF0000000000000 ),
	LONG2CHARS( 0xFFF8000000000000 ),
	LONG2CHARS( 0xFFFC000000000000 ),
	LONG2CHARS( 0xFFFE000000000000 ),
	LONG2CHARS( 0xFFFF000000000000 ),
	LONG2CHARS( 0xFFFF800000000000 ),
	LONG2CHARS( 0xFFFFC00000000000 ),
	LONG2CHARS( 0xFFFFE00000000000 ),
	LONG2CHARS( 0xFFFFF00000000000 ),
	LONG2CHARS( 0xFFFFF80000000000 ),
	LONG2CHARS( 0xFFFFFC0000000000 ),
	LONG2CHARS( 0xFFFFFE0000000000 ),
	LONG2CHARS( 0xFFFFFF0000000000 ),
	LONG2CHARS( 0xFFFFFF8000000000 ),
	LONG2CHARS( 0xFFFFFFC000000000 ),
	LONG2CHARS( 0xFFFFFFE000000000 ),
	LONG2CHARS( 0xFFFFFFF000000000 ),
	LONG2CHARS( 0xFFFFFFF800000000 ),
	LONG2CHARS( 0xFFFFFFFC00000000 ),
	LONG2CHARS( 0xFFFFFFFE00000000 ),
	LONG2CHARS( 0xFFFFFFFF00000000 ),
	LONG2CHARS( 0xFFFFFFFF80000000 ),
	LONG2CHARS( 0xFFFFFFFFC0000000 ),
	LONG2CHARS( 0xFFFFFFFFE0000000 ),
	LONG2CHARS( 0xFFFFFFFFF0000000 ),
	LONG2CHARS( 0xFFFFFFFFF8000000 ),
	LONG2CHARS( 0xFFFFFFFFFC000000 ),
	LONG2CHARS( 0xFFFFFFFFFE000000 ),
	LONG2CHARS( 0xFFFFFFFFFF000000 ),
	LONG2CHARS( 0xFFFFFFFFFF800000 ),
	LONG2CHARS( 0xFFFFFFFFFFC00000 ),
	LONG2CHARS( 0xFFFFFFFFFFE00000 ),
	LONG2CHARS( 0xFFFFFFFFFFF00000 ),
	LONG2CHARS( 0xFFFFFFFFFFF80000 ),
	LONG2CHARS( 0xFFFFFFFFFFFC0000 ),
	LONG2CHARS( 0xFFFFFFFFFFFE0000 ),
	LONG2CHARS( 0xFFFFFFFFFFFF0000 ),
	LONG2CHARS( 0xFFFFFFFFFFFF8000 ),
	LONG2CHARS( 0xFFFFFFFFFFFFC000 ),
	LONG2CHARS( 0xFFFFFFFFFFFFE000 ),
	LONG2CHARS( 0xFFFFFFFFFFFFF000 ),
	LONG2CHARS( 0xFFFFFFFFFFFFF800 ),
	LONG2CHARS( 0xFFFFFFFFFFFFFC00 ),
	LONG2CHARS( 0xFFFFFFFFFFFFFE00 ),
	LONG2CHARS( 0xFFFFFFFFFFFFFF00 ),
	LONG2CHARS( 0xFFFFFFFFFFFFFF80 ),
	LONG2CHARS( 0xFFFFFFFFFFFFFFC0 ),
	LONG2CHARS( 0xFFFFFFFFFFFFFFE0 ),
	LONG2CHARS( 0xFFFFFFFFFFFFFFF0 ),
	LONG2CHARS( 0xFFFFFFFFFFFFFFF8 ),
	LONG2CHARS( 0xFFFFFFFFFFFFFFFC ),
	LONG2CHARS( 0xFFFFFFFFFFFFFFFE ),
	LONG2CHARS( 0xFFFFFFFFFFFFFFFF )
#endif /* PPW */
    };

#if NEED_OLD_MFB_MASKS
/* a hack, for now, since the entries for 0 need to be all
   1 bits, not all zeros.
   this means the code DOES NOT WORK for segments of length
   0 (which is only a problem in the horizontal line code.)
*/
PixelType startpartial[33] =
    {
	LONG2CHARS( 0xFFFFFFFF ),
	LONG2CHARS( 0x7FFFFFFF ),
	LONG2CHARS( 0x3FFFFFFF ),
	LONG2CHARS( 0x1FFFFFFF ),
	LONG2CHARS( 0x0FFFFFFF ),
	LONG2CHARS( 0x07FFFFFF ),
	LONG2CHARS( 0x03FFFFFF ),
	LONG2CHARS( 0x01FFFFFF ),
	LONG2CHARS( 0x00FFFFFF ),
	LONG2CHARS( 0x007FFFFF ),
	LONG2CHARS( 0x003FFFFF ),
	LONG2CHARS( 0x001FFFFF ),