#ifndef	GRAPHICS_CLIP_H
#define	GRAPHICS_CLIP_H
/*
**	$Filename: graphics/clip.h $
**	$Release: 2.02 $
**	$Revision: 36.7 $
**	$Date: 90/11/06 $
**
**
**
**	(C) Copyright 1985,1986,1987,1988,1989 Commodore-Amiga, Inc.
**	    All Rights Reserved
*/

#ifndef EXEC_TYPES_H
#include <exec/types.h>
#endif

#ifndef GRAPHICS_GFX_H
#include <graphics/gfx.h>
#endif
#ifndef EXEC_SEMAPHORES_H
#include <exec/semaphores.h>
#endif
#ifndef UTILITY_HOOKS_H
#include <utility/hooks.h>
#endif

/* structures used by and constructed by windowlib.a */
/* understood by rom software */

#define NEWLOCKS

struct Layer
{
    struct  Layer *front,*back;
    struct  ClipRect	*ClipRect;  /* read by roms to find first cliprect */
    struct  RastPort	*rp;
    struct  Rectangle	bounds;
    UBYTE   reserved[4];
    UWORD   priority;		    /* system use only */
    UWORD   Flags;		    /* obscured ?, Virtual BitMap? */
    struct  BitMap *SuperBitMap;
    struct  ClipRect *SuperClipRect; /* super bitmap cliprects if VBitMap != 0*/
				  /* else damage cliprect list for refresh */
    APTR    Window;		  /* reserved for user interface use */
    SHORT   Scroll_X,Scroll_Y;
    struct  ClipRect *cr,*cr2,*crnew;	/* used by dedice */
    struct  ClipRect *SuperSaveClipRects; /* preallocated cr's */
    struct  ClipRect *_cliprects;	/* system use during refresh */
    struct  Layer_Info	*LayerInfo;	/* points to head of the list */
    struct  SignalSemaphore Lock;
    struct  Hook *BackFill;
    ULONG   reserved1;
    struct  Region *ClipRegion;
    struct  Region *saveClipRects;	/* used to back out when in trouble*/
    WORD    Width,Height;		/* system use */
    UBYTE   reserved2[18];
    /* this must stay here */
    struct  Region  *DamageList;    /* list of rectangles to refresh
				       through */
};

struct ClipRect
{
    struct  ClipRect *Next;	    /* roms used to find next ClipRect */
    struct  ClipRect *prev;	    /* ignored by roms, used by windowlib */
    struct  Layer   *lobs;	    /* ignored by roms, used by windowlib */
    struct  BitMap  *BitMap;
    struct  Rectangle	bounds;     /* set up by windowlib, used by roms */
    struct  ClipRect *_p1,*_p2;     /* system reserved */
    LONG    reserved;		    /* system use */
#ifdef NEWCLIPRECTS_1_1
    LONG    Flags;		    /* only exists in layer allocation */
#endif				    /* MUST be multiple of 8 bytes to buffer */
};

/* internal cliprect flags */
#define CR_NEEDS_NO_CONCEALED_RASTERS  1

/* defines for code values for getcode */
#define ISLESSX 1
#define ISLESSY 2
#define ISGRTRX 4
#define ISGRTRY 8

#endif	/* GRAPHICS_CLIP_H */