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Annotation of researchv9/X11/src/X.V11R1/server/include/misc.h, revision 1.1.1.1

1.1       root        1: /***********************************************************
                      2: Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts,
                      3: and the Massachusetts Institute of Technology, Cambridge, Massachusetts.
                      4: 
                      5:                         All Rights Reserved
                      6: 
                      7: Permission to use, copy, modify, and distribute this software and its 
                      8: documentation for any purpose and without fee is hereby granted, 
                      9: provided that the above copyright notice appear in all copies and that
                     10: both that copyright notice and this permission notice appear in 
                     11: supporting documentation, and that the names of Digital or MIT not be
                     12: used in advertising or publicity pertaining to distribution of the
                     13: software without specific, written prior permission.  
                     14: 
                     15: DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
                     16: ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
                     17: DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
                     18: ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
                     19: WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
                     20: ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
                     21: SOFTWARE.
                     22: 
                     23: ******************************************************************/
                     24: /* $Header: misc.h,v 1.43 87/09/11 07:49:51 toddb Exp $ */
                     25: #ifndef MISC_H
                     26: #define MISC_H 1
                     27: /*
                     28:  *  X internal definitions 
                     29:  *
                     30:  */
                     31: 
                     32: 
                     33: extern unsigned long globalSerialNumber;
                     34: 
                     35: #ifndef NULL
                     36: #define NULL            0
                     37: #endif
                     38: 
                     39: #define MAXSCREENS     3
                     40: #define MAXCLIENTS     128
                     41: #define MAXFORMATS     8
                     42: #define MAXVISUALS_PER_SCREEN 50
                     43: 
                     44: typedef unsigned char *pointer;
                     45: typedef int Bool;
                     46: typedef long PIXEL;
                     47: typedef int ATOM;
                     48: 
                     49: 
                     50: #ifndef TRUE
                     51: #define TRUE 1
                     52: #define FALSE 0
                     53: #endif
                     54: #include "os.h"        /* for ALLOCATE_LOCAL and DEALLOCATE_LOCAL */
                     55: 
                     56: #define NullBox ((BoxPtr)0)
                     57: #define MILLI_PER_MIN (1000 * 60)
                     58: #define MILLI_PER_SECOND (1000)
                     59: #define DEFAULT_SCREEN_SAVER_TIME (10 * MILLI_PER_MIN);
                     60: 
                     61:     /* this next is used with None and ParentRelative to tell
                     62:        PaintWin() what to use to paint the background. Also used
                     63:        in the macro IS_VALID_PIXMAP */
                     64: 
                     65: #define USE_BACKGROUND_PIXEL 3
                     66: #define USE_BORDER_PIXEL 3
                     67: 
                     68: 
                     69: /* byte swap a long literal */
                     70: #define lswapl(x) ((((x) & 0xff) << 24) |\
                     71:                   (((x) & 0xff00) << 8) |\
                     72:                   (((x) & 0xff000) >> 8) |\
                     73:                   (((x) >> 24) & 0xff))
                     74: 
                     75: /* byte swap a short literal */
                     76: #define lswaps(x) ((((x) & 0xff) << 8) | (((x) >> 8) & 0xff))
                     77: 
                     78: #define min(a, b) (((a) < (b)) ? (a) : (b))
                     79: #define max(a, b) (((a) > (b)) ? (a) : (b))
                     80: #define abs(a) ((a) > 0 ? (a) : -(a))
                     81: #define fabs(a) ((a) > 0.0 ? (a) : -(a))       /* floating absolute value */
                     82: #define sign(x) ((x) < 0 ? -1 : ((x) > 0 ? 1 : 0))
                     83: 
                     84: #define MAXSHORT 32767
                     85: #define MINSHORT -MAXSHORT 
                     86: 
                     87: 
                     88: /* byte swap a long */
                     89: #define swapl(x, n) n = ((char *) (x))[0];\
                     90:                 ((char *) (x))[0] = ((char *) (x))[3];\
                     91:                 ((char *) (x))[3] = n;\
                     92:                 n = ((char *) (x))[1];\
                     93:                 ((char *) (x))[1] = ((char *) (x))[2];\
                     94:                 ((char *) (x))[2] = n;
                     95: 
                     96: /* byte swap a short */
                     97: #define swaps(x, n) n = ((char *) (x))[0];\
                     98:                 ((char *) (x))[0] = ((char *) (x))[1];\
                     99:                 ((char *) (x))[1] = n
                    100: 
                    101: 
                    102: 
                    103: typedef struct _DDXPoint *DDXPointPtr;
                    104: typedef struct _Box *BoxPtr;
                    105: typedef struct _Rectangle *RectanglePtr;
                    106: 
                    107: #endif /* MISC_H */

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