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GuruMeditation
Docs » Include » graphics » gfxbase.h / .i
#ifndef GRAPHICS_GFXBASE_H
#define GRAPHICS_GFXBASE_H
/*
**	$VER: gfxbase.h 39.21 (21.4.1993)
**	Includes Release 45.1
**
**	graphics base definitions
**
**	(C) Copyright 1985-2001 Amiga, Inc.
**	    All Rights Reserved
*/

#ifndef EXEC_LISTS_H
#include <exec/lists.h>
#endif
#ifndef EXEC_LIBRARIES_H
#include <exec/libraries.h>
#endif
#ifndef EXEC_INTERRUPTS_H
#include <exec/interrupts.h>
#endif
#ifndef	GRAPHICS_MONITOR_H
#include <graphics/monitor.h>
#endif

struct GfxBase
{
	struct	Library  LibNode;
	struct	View *ActiView;
	struct	copinit *copinit;	/* ptr to copper start up list */
	LONG	*cia;			/* for 8520 resource use */
	LONG	*blitter;		/* for future blitter resource use */
	UWORD	*LOFlist;
	UWORD	*SHFlist;
	struct	bltnode *blthd,*blttl;
	struct	bltnode *bsblthd,*bsblttl;
	struct	Interrupt vbsrv,timsrv,bltsrv;
	struct	List	 TextFonts;
	struct	TextFont *DefaultFont;
	UWORD	Modes;			/* copy of current first bplcon0 */
	BYTE	VBlank;
	BYTE	Debug;
	WORD	BeamSync;
	WORD	system_bplcon0;		/* it is ored into each bplcon0 for display */
	UBYTE	SpriteReserved;
	UBYTE	bytereserved;
	UWORD	Flags;
	WORD	BlitLock;
	WORD	BlitNest;

	struct	List BlitWaitQ;
	struct	Task *BlitOwner;
	struct	List TOF_WaitQ;
	UWORD	DisplayFlags;		/* NTSC PAL GENLOC etc*/
					/* flags initialized at power on */
	struct	SimpleSprite **SimpleSprites;
	UWORD	MaxDisplayRow;		/* hardware stuff, do not use */
	UWORD	MaxDisplayColumn;	/* hardware stuff, do not use */
	UWORD	NormalDisplayRows;
	UWORD	NormalDisplayColumns;
	/* the following are for standard non interlace, 1/2 wb width */
	UWORD	NormalDPMX;		/* Dots per meter on display */
	UWORD	NormalDPMY;		/* Dots per meter on display */
	struct	SignalSemaphore *LastChanceMemory;
	UWORD	*LCMptr;
	UWORD	MicrosPerLine;		/* 256 time usec/line */
	UWORD	MinDisplayColumn;
	UBYTE	ChipRevBits0;
	UBYTE	MemType;
	UBYTE	crb_reserved[4];
	UWORD	monitor_id;
	ULONG	hedley[8];
	ULONG	hedley_sprites[8];	/* sprite ptrs for intuition mouse */
	ULONG	hedley_sprites1[8];	/* sprite ptrs for intuition mouse */
	WORD	hedley_count;
	UWORD	hedley_flags;
	WORD	hedley_tmp;
	LONG	*hash_table;
	UWORD	current_tot_rows;
	UWORD	current_tot_cclks;
	UBYTE	hedley_hint;
	UBYTE	hedley_hint2;
	ULONG	nreserved[4];
	LONG	*a2024_sync_raster;
	UWORD	control_delta_pal;
	UWORD	control_delta_ntsc;
	struct	MonitorSpec *current_monitor;
	struct	List MonitorList;
	struct	MonitorSpec *default_monitor;
	struct	SignalSemaphore *MonitorListSemaphore;
	VOID	*DisplayInfoDataBase;
	UWORD	TopLine;
	struct	SignalSemaphore *ActiViewCprSemaphore;
	ULONG	*UtilBase;		/* for hook and tag utilities. had to change because of name clash	*/
	ULONG	*ExecBase;		/* to link with rom.lib	*/
	UBYTE	*bwshifts;
	UWORD	*StrtFetchMasks;
	UWORD	*StopFetchMasks;
	UWORD	*Overrun;
	WORD	*RealStops;
	UWORD	SpriteWidth;	/* current width (in words) of sprites */
	UWORD	SpriteFMode;		/* current sprite fmode bits	*/
	BYTE	SoftSprites;	/* bit mask of size change knowledgeable sprites */
	BYTE	arraywidth;
	UWORD	DefaultSpriteWidth;	/* what width intuition wants */
	BYTE	SprMoveDisable;
	UBYTE	WantChips;
	UBYTE	BoardMemType;
	UBYTE	Bugs;
	ULONG	*gb_LayersBase;
	ULONG	ColorMask;
	APTR	IVector;
	APTR	IData;
	ULONG	SpecialCounter;		/* special for double buffering */
	APTR	DBList;
	UWORD	MonitorFlags;
	UBYTE	ScanDoubledSprites;
	UBYTE	BP3Bits;
	struct	AnalogSignalInterval MonitorVBlank;
	struct	MonitorSpec *natural_monitor;
	APTR	ProgData;
	UBYTE	ExtSprites;
	UBYTE	pad3;
	UWORD	GfxFlags;
	ULONG	VBCounter;
	struct	SignalSemaphore *HashTableSemaphore;
	ULONG	*HWEmul[9];
};

#define ChunkyToPlanarPtr HWEmul[0]






/* Values for GfxBase->DisplayFlags */
#define NTSC		1
#define GENLOC		2
#define PAL		4
#define TODA_SAFE	8
#define REALLY_PAL	16	/* what is actual crystal frequency
				 (as opposed to what bootmenu set the agnus to)?
				 (V39) */
#define LPEN_SWAP_FRAMES	32
				/* LightPen software could set this bit if the
				 * "lpen-with-interlace" fix put in for V39
				 * does not work. This is true of a number of
				 * Agnus chips.
				 * (V40).
				 */

#define BLITMSG_FAULT	4

/* bits defs for ChipRevBits */
#define	GFXB_BIG_BLITS	0
#define	GFXB_HR_AGNUS	0
#define GFXB_HR_DENISE	1
#define GFXB_AA_ALICE	2
#define GFXB_AA_LISA	3
#define GFXB_AA_MLISA	4	/* internal use only. */

#define GFXF_BIG_BLITS	1
#define	GFXF_HR_AGNUS	1
#define GFXF_HR_DENISE	2
#define GFXF_AA_ALICE	4
#define GFXF_AA_LISA	8
#define GFXF_AA_MLISA	16	/* internal use only */

/* Pass ONE of these to SetChipRev() */
#define SETCHIPREV_A	GFXF_HR_AGNUS
#define SETCHIPREV_ECS	(GFXF_HR_AGNUS | GFXF_HR_DENISE)
#define SETCHIPREV_AA	(GFXF_AA_ALICE | GFXF_AA_LISA | SETCHIPREV_ECS)
#define SETCHIPREV_BEST 0xffffffff

/* memory type */
#define BUS_16		0
#define NML_CAS		0
#define BUS_32		1
#define DBL_CAS		2
#define BANDWIDTH_1X	(BUS_16 | NML_CAS)
#define BANDWIDTH_2XNML	BUS_32
#define BANDWIDTH_2XDBL	DBL_CAS
#define BANDWIDTH_4X	(BUS_32 | DBL_CAS)

/* GfxFlags (private) */
#define NEW_DATABASE	1

#define GRAPHICSNAME	"graphics.library"

#endif	/* GRAPHICS_GFXBASE_H */

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