devc.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          */
/*                                                                       */
/*      devc.h                                           1.9             */
/*                                                                       */
/* COMPONENT                                                             */
/*                                                                       */
/*      All                                                              */
/*                                                                       */
/* DESCRIPTION                                                           */
/*                                                                       */
/*      This table relates the combined devTechs to a specific blit type */
/*                                                                       */
/* AUTHOR                                                                */
/*                                                                       */
/*      Robert G. Burrill, Accelerated Technology, Inc.                  */
/*                                                                       */
/* DATA STRUCTURES                                                       */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* FUNCTIONS                                                             */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* DEPENDENCIES                                                          */
/*                                                                       */
/*      None                                                             */
/*                                                                       */
/* HISTORY                                                               */
/*                                                                       */
/*		   NAME            DATE                    REMARKS               */
/*                                                                       */
/*                                                                       */
/*************************************************************************/

/* device manager function codes */
#define DMWAKEUP	0	/* enable for use */
#define DMGRAFIX	1	/* display graphics	*/
#define DMTEXT	  	2	/* display text */
#define DMWPAL	  	3	/* write palette */
#define DMRPAL	  	4	/* read palette */
#define DMQRY	  	5	/* query presence */
#define DMOVERSCAN  6	/* set overscan color */
#define DMFLIP  	7	/* flip page */
#define DMRETRACE  	8	/* wait for vertical retrace */
#define DMSHUTDOWN	9	/* disable for use */

/* structure of data at devParam for palette functions */
#ifdef CPU386
typedef struct _argsPalInfo{
	long palNum;		/* palette number */
	long palBgn;		/* begin color index */
	long palEnd;		/* end color index */
	palData *palDataPtr;/* pointer to palette data */
} argsPalInfo;
#else
typedef struct _argsPalInfo{
	short palNum;		/* palette number				*/
	short palBgn;		/* begin color index			*/
	short palEnd;		/* end color index				*/
	palData *palDataPtr;/* pointer to palette data		*/
} argsPalInfo;
#endif

typedef struct _VESAInfo{	/* VESA Function 01 - Mode Information Block */
	short ModeAtt;		/* mode attributes              */
	byte WinAAtt;		/* window A attributes          */
	byte WinBAtt;		/* window B attributes          */
	short WinGran;		/* window granularity           */
	short WinSize;		/* window size                  */
	short WinASeg;		/* window A start segment       */
	short WinBSeg;		/* window B start segment       */
	long WinPtr;		/* pointer to window function   */
	short BPSL;			/* bytes per scan line          */
	short XRes;			/* horizontal resolution        */
	short YRes;			/* vertical resolution          */
	byte XChar;			/* character cell width         */
	byte YChar;			/* character cell height        */
	byte Planes;		/* number of memory planes      */
	byte Bits;			/* bits per pixel               */
	byte Banks;			/* number of memory banks       */
	byte Model;			/* memory model type            */
	byte BSize;			/* bank size in kb              */
	byte Pages;			/* number of image pages        */
	byte VESARsvd;		/* reserved for page function   */
	byte VESAPad[225];	/* pad to 256 bytes				*/
} VESAInfo;

/* function codes for DMRETRACE */
#define statusRETRACE	0
#define enterRETRACE	1
#define enterVIDEO		2
#define inRETRACE		3
#define inVIDEO			4