cfbmskbits.c

远程桌面连接工具

/************************************************************
Copyright 1987 by Sun Microsystems, Inc. Mountain View, CA.

                    All Rights Reserved

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not be used in advertising or publicity pertaining to 
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any purpose. It is provided "as is" without any express or 
implied warranty.

SUN DISCLAIMS ALL WARRANTIES WITH REGARD TO  THIS  SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FIT-
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/* $XConsortium: cfbmskbits.c,v 4.13 94/07/28 12:30:41 dpw Exp $ */
/* $XFree86: xc/programs/Xserver/cfb/cfbmskbits.c,v 3.0 1996/06/29 09:05:41 dawes Exp $ */

/*
 * ==========================================================================
 * Converted to Color Frame Buffer by smarks@sun, April-May 1987.  The "bit 
 * numbering" in the doc below really means "byte numbering" now.
 * ==========================================================================
 */

/*
   these tables are used by several macros in the cfb 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 32-n in a longword

   see also cfbmskbits.h
*/
#include	<X.h>
#include	<Xmd.h>
#include	<servermd.h>
#include	"cfb.h"
#include	"cfbmskbits.h"

#define _cfbBits(a) (PixelGroup)(a)

#if	(BITMAP_BIT_ORDER == MSBFirst)
#define cfbBits(v)	_cfbBits(v)
#else /* BITMAP_BIT_ORDER == LSBFirst */
#define cfbFlip2(a)	((((a) & 0x1) << 1) | (((a) & 0x2) >> 1))
#define cfbFlip4(a)	((cfbFlip2(a) << 2) | cfbFlip2(a >> 2))
#define cfbFlip8(a)	((cfbFlip4(a) << 4) | cfbFlip4(a >> 4))
#define cfbFlip16(a)	((cfbFlip8(a) << 8) | cfbFlip8(a >> 8))
#define cfbFlip32(a)	((cfbFlip16(a) << 16) | cfbFlip16(a >> 16))
#if PGSZ == 32
#define cfbBits(a)	cfbFlip32(_cfbBits(a))
#else /* PGSZ == 64 */
#define cfbFlip64(a)	((cfbFlip32(a) << 32) | cfbFlip32(a >> 32))
#define cfbBits(a)	cfbFlip64(_cfbBits(a))
#endif /* PGSZ */
#endif /* BITMAP_BIT_ORDER */

/* 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.
*/
#if PSZ == 4
#if PGSZ == 32
PixelGroup cfbstarttab[] =
    {
	cfbBits(0x00000000),
	cfbBits(0x0FFFFFFF),
	cfbBits(0x00FFFFFF),
	cfbBits(0x000FFFFF),
	cfbBits(0x0000FFFF),
	cfbBits(0x00000FFF),
	cfbBits(0x000000FF),
	cfbBits(0x0000000F)
    };
PixelGroup cfbendtab[] =
    {
	cfbBits(0x00000000),
	cfbBits(0xF0000000),
	cfbBits(0xFF000000),
	cfbBits(0xFFF00000),
	cfbBits(0xFFFF0000),
	cfbBits(0xFFFFF000),
	cfbBits(0xFFFFFF00),
	cfbBits(0xFFFFFFF0)
    };
#else /* PGSZ == 64 */
PixelGroup cfbstarttab[] =
    {
	cfbBits(0x0000000000000000),
	cfbBits(0x0FFFFFFFFFFFFFFF),
	cfbBits(0x00FFFFFFFFFFFFFF),
	cfbBits(0x000FFFFFFFFFFFFF),
	cfbBits(0x0000FFFFFFFFFFFF),
	cfbBits(0x00000FFFFFFFFFFF),
	cfbBits(0x000000FFFFFFFFFF),
	cfbBits(0x0000000FFFFFFFFF),
	cfbBits(0x00000000FFFFFFFF),
	cfbBits(0x000000000FFFFFFF),
	cfbBits(0x0000000000FFFFFF),
	cfbBits(0x00000000000FFFFF),
	cfbBits(0x000000000000FFFF),
	cfbBits(0x0000000000000FFF),
	cfbBits(0x00000000000000FF),
	cfbBits(0x000000000000000F),
    };
PixelGroup cfbendtab[] =
    {
	cfbBits(0x0000000000000000),
	cfbBits(0xF000000000000000),
	cfbBits(0xFF00000000000000),
	cfbBits(0xFFF0000000000000),
	cfbBits(0xFFFF000000000000),
	cfbBits(0xFFFFF00000000000),
	cfbBits(0xFFFFFF0000000000),
	cfbBits(0xFFFFFFF000000000),
	cfbBits(0xFFFFFFFF00000000),
	cfbBits(0xFFFFFFFFF0000000),
	cfbBits(0xFFFFFFFFFF000000),
	cfbBits(0xFFFFFFFFFFF00000),
	cfbBits(0xFFFFFFFFFFFF0000),
	cfbBits(0xFFFFFFFFFFFFF000),
	cfbBits(0xFFFFFFFFFFFFFF00),
	cfbBits(0xFFFFFFFFFFFFFFF0),
    };
#endif /* PGSZ */
#endif /* PSZ == 4 */

#if PSZ == 8
#if PGSZ == 32
PixelGroup cfbstarttab[] =
    {
	cfbBits(0x00000000),
	cfbBits(0x00FFFFFF),
	cfbBits(0x0000FFFF),
	cfbBits(0x000000FF)
    };
PixelGroup cfbendtab[] =
    {
	cfbBits(0x00000000),
	cfbBits(0xFF000000),
	cfbBits(0xFFFF0000),
	cfbBits(0xFFFFFF00)
    };
#else /* PGSZ == 64 */
PixelGroup cfbstarttab[] =
    {
	cfbBits(0x0000000000000000),
	cfbBits(0x00FFFFFFFFFFFFFF),
	cfbBits(0x0000FFFFFFFFFFFF),
	cfbBits(0x000000FFFFFFFFFF),
	cfbBits(0x00000000FFFFFFFF),
	cfbBits(0x0000000000FFFFFF),
	cfbBits(0x000000000000FFFF),
	cfbBits(0x00000000000000FF)
    };
PixelGroup cfbendtab[] =
    {
	cfbBits(0x0000000000000000),
	cfbBits(0xFF00000000000000),
	cfbBits(0xFFFF000000000000),
	cfbBits(0xFFFFFF0000000000),
	cfbBits(0xFFFFFFFF00000000),
	cfbBits(0xFFFFFFFFFF000000),
	cfbBits(0xFFFFFFFFFFFF0000),
	cfbBits(0xFFFFFFFFFFFFFF00)
    };
#endif /* PGSZ */
#endif /* PSZ == 8 */

#if PSZ == 16
#if PGSZ == 32
PixelGroup cfbstarttab[] =
    {
	cfbBits(0x00000000),
	cfbBits(0x0000FFFF),
    };
PixelGroup cfbendtab[] =
    {
	cfbBits(0x00000000),
	cfbBits(0xFFFF0000),
    };
#else /* PGSZ == 64 */
PixelGroup cfbstarttab[] =
    {
	cfbBits(0x0000000000000000),
	cfbBits(0x0000FFFFFFFFFFFF),
	cfbBits(0x00000000FFFFFFFF),
	cfbBits(0x000000000000FFFF),
    };
PixelGroup cfbendtab[] =
    {
	cfbBits(0x0000000000000000),
	cfbBits(0xFFFF000000000000),
	cfbBits(0xFFFFFFFF00000000),
	cfbBits(0xFFFFFFFFFFFF0000),
    };
#endif /* PGSZ */
#endif

#if PSZ == 24
#if PGSZ == 32
PixelGroup cfbstarttab[] =
    {
	cfbBits(0x00000000),
	cfbBits(0x000000FF),
	cfbBits(0x0000FFFF),
	cfbBits(0x00FFFFFF),
    };
PixelGroup cfbendtab[] = 
    {
	cfbBits(0x00000000),
	cfbBits(0xFFFFFF00),
	cfbBits(0xFFFF0000),
	cfbBits(0xFF000000),
    };
#else /* PGSZ == 64 */
PixelGroup cfbstarttab[] =
    {
	cfbBits(0x0000000000000000),
	cfbBits(0x000000FFFFFFFFFF),
	cfbBits(0x000000000000FFFF),
    };
PixelGroup cfbendtab[] = 
    {
	cfbBits(0x0000000000000000),
	cfbBits(0xFFFFFFFFFF000000),
	cfbBits(0xFFFF000000000000),
    };
#endif /* PGSZ */
#endif /* PSZ == 24 */

#if PSZ == 32
#if PGSZ == 32
PixelGroup cfbstarttab[] =
    {
	cfbBits(0x00000000),
    };
PixelGroup cfbendtab[] = 
    {
	cfbBits(0x00000000),
    };
#else /* PGSZ == 64 */
PixelGroup cfbstarttab[] =
    {
	cfbBits(0x0000000000000000),
	cfbBits(0x00000000FFFFFFFF),
    };
PixelGroup cfbendtab[] = 
    {
	cfbBits(0x0000000000000000),
	cfbBits(0xFFFFFFFF00000000),
    };
#endif /* PGSZ */
#endif /* PSZ == 32 */

/* 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.)
*/
#if PSZ == 4
#if PGSZ == 32
PixelGroup cfbstartpartial[] =
    {
	cfbBits(0xFFFFFFFF),
	cfbBits(0x0FFFFFFF),
	cfbBits(0x00FFFFFF),
	cfbBits(0x000FFFFF),
	cfbBits(0x0000FFFF),
	cfbBits(0x00000FFF),
	cfbBits(0x000000FF),
	cfbBits(0x0000000F)
    };

PixelGroup cfbendpartial[] =
    {
	cfbBits(0xFFFFFFFF),
	cfbBits(0xF0000000),
	cfbBits(0xFF000000),
	cfbBits(0xFFF00000),
	cfbBits(0xFFFF0000),
	cfbBits(0xFFFFF000),
	cfbBits(0xFFFFFF00),
	cfbBits(0xFFFFFFF0)
    };
#else /* PGSZ == 64 */
PixelGroup cfbstartpartial[] =
    {
	cfbBits(0xFFFFFFFFFFFFFFFF),
	cfbBits(0x0FFFFFFFFFFFFFFF),
	cfbBits(0x00FFFFFFFFFFFFFF),
	cfbBits(0x000FFFFFFFFFFFFF),
	cfbBits(0x0000FFFFFFFFFFFF),
	cfbBits(0x00000FFFFFFFFFFF),
	cfbBits(0x000000FFFFFFFFFF),
	cfbBits(0x0000000FFFFFFFFF),
	cfbBits(0x00000000FFFFFFFF),
	cfbBits(0x000000000FFFFFFF),
	cfbBits(0x0000000000FFFFFF),
	cfbBits(0x00000000000FFFFF),
	cfbBits(0x000000000000FFFF),
	cfbBits(0x0000000000000FFF),
	cfbBits(0x00000000000000FF),
	cfbBits(0x000000000000000F),
    };

PixelGroup cfbendpartial[] =
    {
	cfbBits(0xFFFFFFFFFFFFFFFF),
	cfbBits(0xF000000000000000),
	cfbBits(0xFF00000000000000),
	cfbBits(0xFFF0000000000000),
	cfbBits(0xFFFF000000000000),
	cfbBits(0xFFFFF00000000000),
	cfbBits(0xFFFFFF0000000000),
	cfbBits(0xFFFFFFF000000000),
	cfbBits(0xFFFFFFFF00000000),
	cfbBits(0xFFFFFFFFF0000000),
	cfbBits(0xFFFFFFFFFF000000),
	cfbBits(0xFFFFFFFFFFF00000),
	cfbBits(0xFFFFFFFFFFFF0000),
	cfbBits(0xFFFFFFFFFFFFF000),
	cfbBits(0xFFFFFFFFFFFFFF00),
	cfbBits(0xFFFFFFFFFFFFFFF0),
    };
#endif /* PGSZ */
#endif /* PSZ == 4 */

#if PSZ == 8
#if PGSZ == 32
PixelGroup cfbstartpartial[] =
    {
	cfbBits(0xFFFFFFFF),
	cfbBits(0x00FFFFFF),
	cfbBits(0x0000FFFF),
	cfbBits(0x000000FF)
    };

PixelGroup cfbendpartial[] =
    {
	cfbBits(0xFFFFFFFF),
	cfbBits(0xFF000000),
	cfbBits(0xFFFF0000),
	cfbBits(0xFFFFFF00)
    };
#else /* PGSZ == 64 */
PixelGroup cfbstartpartial[] =
    {
	cfbBits(0xFFFFFFFFFFFFFFFF),
	cfbBits(0x00FFFFFFFFFFFFFF),
	cfbBits(0x0000FFFFFFFFFFFF),
	cfbBits(0x000000FFFFFFFFFF),
	cfbBits(0x00000000FFFFFFFF),
	cfbBits(0x0000000000FFFFFF),
	cfbBits(0x000000000000FFFF),
	cfbBits(0x00000000000000FF),
    };

PixelGroup cfbendpartial[] =
    {
	cfbBits(0xFFFFFFFFFFFFFFFF),
	cfbBits(0xFF00000000000000),
	cfbBits(0xFFFF000000000000),
	cfbBits(0xFFFFFF0000000000),
	cfbBits(0xFFFFFFFF00000000),
	cfbBits(0xFFFFFFFFFF000000),
	cfbBits(0xFFFFFFFFFFFF0000),
	cfbBits(0xFFFFFFFFFFFFFF00),
    };
#endif /* PGSZ */
#endif /* PSZ == 8 */

#if PSZ == 16
#if PGSZ == 32
PixelGroup cfbstartpartial[] =
    {
	cfbBits(0xFFFFFFFF),
	cfbBits(0x0000FFFF),
    };

PixelGroup cfbendpartial[] =
    {
	cfbBits(0xFFFFFFFF),
	cfbBits(0xFFFF0000),
    };
#else /* PGSZ == 64 */
PixelGroup cfbstartpartial[] =
    {
	cfbBits(0xFFFFFFFFFFFFFFFF),
	cfbBits(0x0000FFFFFFFFFFFF),
	cfbBits(0x00000000FFFFFFFF),
	cfbBits(0x000000000000FFFF),
    };

PixelGroup cfbendpartial[] =
    {
	cfbBits(0xFFFFFFFFFFFFFFFF),
	cfbBits(0xFFFF000000000000),
	cfbBits(0xFFFFFFFF00000000),
	cfbBits(0xFFFFFFFFFFFF0000),
    };
#endif /* PGSZ */
#endif /* PSZ == 16 */

#if PSZ == 24
#if PGSZ == 32
PixelGroup cfbstartpartial[] =
    {
	cfbBits(0xFFFFFFFF),
	cfbBits(0x000000FF),
	cfbBits(0x0000FFFF),
	cfbBits(0x00FFFFFF),
    };

PixelGroup cfbendpartial[] =
    {
	cfbBits(0xFFFFFFFF),
	cfbBits(0xFFFFFF00),
	cfbBits(0xFFFF0000),
	cfbBits(0xFF000000),
    };
#else /* PGSZ == 64 */
PixelGroup cfbstartpartial[] =
    {
	cfbBits(0xFFFFFFFFFFFFFFFF),
	cfbBits(0x0000FFFFFFFFFFFF),
	cfbBits(0x000000FFFFFFFFFF),
	cfbBits(0x00000000FFFFFFFF),
	cfbBits(0x0000000000FFFFFF),
	cfbBits(0x000000000000FFFF),
	cfbBits(0x00000000000000FF),
    };

PixelGroup cfbendpartial[] =
    {
	cfbBits(0xFFFFFFFFFFFFFFFF),
	cfbBits(0xFFFFFFFFFFFF0000),
	cfbBits(0xFFFFFFFFFF000000),
	cfbBits(0xFFFFFFFF00000000),
	cfbBits(0xFFFFFF0000000000),
	cfbBits(0xFFFF000000000000),
	cfbBits(0xFF00000000000000),
    };
#endif /* PGSZ */
#endif /* PSZ == 24 */

#if PSZ == 32
#if PGSZ == 32