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Annotation of 43BSDTahoe/new/X/libapollo/mem.h, revision 1.1

1.1     ! root        1: /* $Header: mem.h,v 10.1 86/11/29 13:53:41 jg Rel $ */
        !             2: /* $Header: mem.h,v 10.1 86/11/29 13:53:41 jg Rel $ */
        !             3: /* mem.h       Data structure for maintaining memory allocation of vs100
        !             4:  *             framebuffer memory.
        !             5:  *
        !             6:  * Author:     Paul J. Asente
        !             7:  *             Digital Equipment Corporation
        !             8:  *             Western Reseach Lab
        !             9:  * Date:       June 1983
        !            10:  */
        !            11: 
        !            12: /****************************************************************************
        !            13:  *                                                                         *
        !            14:  *  Copyright (c) 1983, 1984 by                                                    *
        !            15:  *  DIGITAL EQUIPMENT CORPORATION, Maynard, Massachusetts.                 *
        !            16:  *  All rights reserved.                                                   *
        !            17:  *                                                                         *
        !            18:  *  This software is furnished on an as-is basis and may be used and copied *
        !            19:  *  only with inclusion of the above copyright notice. This software or any *
        !            20:  *  other copies thereof may be provided or otherwise made available to     *
        !            21:  *  others only for non-commercial purposes.  No title to or ownership of   *
        !            22:  *  the software is hereby transferred.                                            *
        !            23:  *                                                                         *
        !            24:  *  The information in this software is  subject to change without notice   *
        !            25:  *  and  should  not  be  construed as  a commitment by DIGITAL EQUIPMENT   *
        !            26:  *  CORPORATION.                                                           *
        !            27:  *                                                                         *
        !            28:  *  DIGITAL assumes no responsibility for the use  or  reliability of its   *
        !            29:  *  software on equipment which is not supplied by DIGITAL.                *
        !            30:  *                                                                         *
        !            31:  *                                                                         *
        !            32:  ****************************************************************************/
        !            33: 
        !            34: #include "param.h"
        !            35: 
        !            36: typedef struct _VSArea {
        !            37:        struct _VSArea *next;
        !            38:        struct _VSArea *prev;
        !            39:        caddr_t vsPtr;
        !            40:        struct {
        !            41:            unsigned int _vsFreeFlag : 1;
        !            42:            int _vsSize : 31;
        !            43:        } s;
        !            44:        union {
        !            45:            struct {
        !            46:                struct _VSArea *next;
        !            47:                struct _VSArea *prev;
        !            48:            } _vsFree;
        !            49:            int _vsType;
        !            50:        } u;
        !            51: } VSArea;
        !            52: 
        !            53: #define vsFreeFlag s._vsFreeFlag
        !            54: #define vsSize s._vsSize
        !            55: #define vsFree u._vsFree
        !            56: #define vsType u._vsType
        !            57: 
        !            58: #define VS_FREE        0
        !            59: #define VS_INUSE 1
        !            60: 
        !            61: #define BITMAP_TYPE 1
        !            62: #define HALFTONE_TYPE 2
        !            63: #define FONT_TYPE 3

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