#ifndef GRAPHICS_LAYERS_H
#define GRAPHICS_LAYERS_H
/*
** $Filename: graphics/layers.h $
** $Release: 2.04 Includes, V37.4 $
** $Revision: 37.0 $
** $Date: 91/01/07 $
**
**
**
** (C) Copyright 1985-1991 Commodore-Amiga, Inc.
** All Rights Reserved
*/

#ifndef EXEC_LISTS_H
#include <exec/lists.h>
#endif

#ifndef EXEC_SEMAPHORES_H
#include <exec/semaphores.h>
#endif

#define LAYERSIMPLE 1
#define LAYERSMART 2
#define LAYERSUPER 4
#define LAYERUPDATING 0x10
#define LAYERBACKDROP 0x40
#define LAYERREFRESH 0x80
#define LAYER_CLIPRECTS_LOST 0x100 
 
 
#define LMN_REGION -1

struct Layer_Info
{
 struct Layer *top_layer;
 struct Layer *check_lp; 
 struct ClipRect *obs; 
 struct MinList FreeClipRects;
 struct SignalSemaphore Lock;
 struct List gs_Head; 
 LONG longreserved;
 UWORD Flags;
 BYTE fatten_count;
 BYTE LockLayersCount;
 UWORD LayerInfo_extra_size;
 WORD *blitbuff;
 VOID *LayerInfo_extra;
};

#define NEWLAYERINFO_CALLED 1
#define ALERTLAYERSNOMEM 0x83010000

#endif