curs_ega.h

nucleus 文件系统,内核和彩色图形系统,在小系统上非常好用

/*************************************************************************/
/*                                                                       */
/*         Copyright (c) 1997 - 1999 Accelerated Technology, Inc.        */
/*                                                                       */
/* PROPRIETARY RIGHTS of Accelerated Technology are involved in the      */
/* subject matter of this material.  All manufacturing, reproduction,    */
/* use, and sales rights pertaining to this subject matter are governed  */
/* by the license agreement.  The recipient of this software implicitly  */
/* accepts the terms of the license.                                     */
/*                                                                       */
/*************************************************************************/

/*************************************************************************/
/*                                                                       */
/* FILE NAME                                            VERSION          */
/*                                                                       */
/*      curs_ega.h                                       1.9             */
/*                                                                       */
/* COMPONENT                                                             */
/*                                                                       */
/*      All                                                              */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      This file contains cursor specific data structures.              */
/*                                                                       */
/* AUTHOR                                                                */
/*                                                                       */
/*      Robert G. Burrill, Accelerated Technology, Inc.                  */
/*                                                                       */
/* DATA STRUCTURES                                                       */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* FUNCTIONS                                                             */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* DEPENDENCIES                                                          */
/*                                                                       */
/*		None                                                             */
/*                                                                       */
/* HISTORY                                                               */
/*                                                                       */
/*		   NAME            DATE                    REMARKS               */
/*                                                                       */
/*                                                                       */
/*************************************************************************/

typedef struct _CursComp
{
	long pntr;		/* pointer to 1st data byte	*/
	TYPENAT hgtM1;	/* height minus 1			*/
	TYPENAT bytM1;	/* bytes minus 1			*/
	TYPENAT cXmin;	/* min byte					*/
	TYPENAT cYmin;	/* min Y raster line		*/
	TYPENAT cXmax;	/* max byte					*/
	TYPENAT cYmax;	/* max Y raster line		*/
} CursComp;

extern CursComp *scrNext;
extern CursComp *scrNext1;
extern CursComp *scrNext2;

extern CursComp *newNext;
extern CursComp *newNext1;
extern CursComp *newNext2;
extern CursComp *newNext3;

extern CursComp *oldNext;
extern CursComp *oldNext1;
extern CursComp *oldNext2;
extern CursComp *oldNext3;

extern CursComp *oldLast;

extern CursComp *scrLast;

extern CursComp *curNext;

extern CursComp *oldBuff;
extern CursComp *newBuff;

extern CursComp *oldCurFlags;
extern CursComp *newCurFlags;

/* "curFlags" Bit Flag Values */
#define step1	0x0001			/* newScrn1 -> newSave1 -> oldCurs1 */
#define step2	0x0002			/* newScrn2 -> newSave2 -> oldCurs2 */
#define step3	0x0004			/* oldCurs3 -> newSave3 */
#define step4	0x0008			/* curData  -> oldCurs */
#define step5	0x0010			/* oldSave  -> oldScrn */
#define step6	0x0020			/* oldCurs1 -> newScrn1 */
#define step7	0x0040			/* oldCurs2 -> newScrn2 */