#ifndef GRAPHICS_CLIP_H
#define GRAPHICS_CLIP_H
/*
**      $Filename: graphics/clip.h $
**      $Release: 2.04 Includes, V37.4 $
**      $Revision: 37.2 $
**      $Date: 91/10/24 $
**
**
**
**      (C) Copyright 1985-1999 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 */
    WORD   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;        /* Temp use in layers (private) */
    struct  Layer   *lobs;         /* Private use for layers */
    struct  BitMap  *BitMap;       /* Bitmap for layers private use */
    struct  Rectangle  bounds;     /* bounds of cliprect */
    void    *_p1;                  /* Layers private use!!! */
    void    *_p2;                   /* Layers private use!!! */
    LONG    reserved;               /* system use (Layers private) */
#ifdef NEWCLIPRECTS_1_1
    LONG    Flags;                  /* Layers private field for cliprects */
                                    /* that layers allocates... */
#endif                              /* MUST be multiple of 8 bytes to buffer */
};

/* internal cliprect flags */
#define CR_NEEDS_NO_CONCEALED_RASTERS  1
#define CR_NEEDS_NO_LAYERBLIT_DAMAGE   2

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

#endif  /* GRAPHICS_CLIP_H */