#ifndef  CLIB_LAYERS_PROTOS_H
#define  CLIB_LAYERS_PROTOS_H

/*
**	$VER: layers_protos.h 40.1 (17.5.1996)
**
**	C prototypes. For use with 32 bit integers only.
**
**	Copyright © 2001 Amiga, Inc.
**	    All Rights Reserved
*/

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

#ifndef  EXEC_TYPES_H
#include <exec/types.h>
#endif
#ifndef  GRAPHICS_LAYERS_H
#include <graphics/layers.h>
#endif
#ifndef  GRAPHICS_CLIP_H
#include <graphics/clip.h>
#endif
#ifndef  GRAPHICS_RASTPORT_H
#include <graphics/rastport.h>
#endif
#ifndef  GRAPHICS_REGIONS_H
#include <graphics/regions.h>
#endif
VOID InitLayers( struct Layer_Info *li );
struct Layer *CreateUpfrontLayer( struct Layer_Info *li, struct BitMap *bm, LONG x0, LONG y0, LONG x1, LONG y1, LONG flags, struct BitMap *bm2 );
struct Layer *CreateBehindLayer( struct Layer_Info *li, struct BitMap *bm, LONG x0, LONG y0, LONG x1, LONG y1, LONG flags, struct BitMap *bm2 );
LONG UpfrontLayer( LONG dummy, struct Layer *layer );
LONG BehindLayer( LONG dummy, struct Layer *layer );
LONG MoveLayer( LONG dummy, struct Layer *layer, LONG dx, LONG dy );
LONG SizeLayer( LONG dummy, struct Layer *layer, LONG dx, LONG dy );
VOID ScrollLayer( LONG dummy, struct Layer *layer, LONG dx, LONG dy );
LONG BeginUpdate( struct Layer *l );
VOID EndUpdate( struct Layer *layer, ULONG flag );
LONG DeleteLayer( LONG dummy, struct Layer *layer );
VOID LockLayer( LONG dummy, struct Layer *layer );
VOID UnlockLayer( struct Layer *layer );
VOID LockLayers( struct Layer_Info *li );
VOID UnlockLayers( struct Layer_Info *li );
VOID LockLayerInfo( struct Layer_Info *li );
VOID SwapBitsRastPortClipRect( struct RastPort *rp, struct ClipRect *cr );
struct Layer *WhichLayer( struct Layer_Info *li, LONG x, LONG y );
VOID UnlockLayerInfo( struct Layer_Info *li );
struct Layer_Info *NewLayerInfo( VOID );
VOID DisposeLayerInfo( struct Layer_Info *li );
LONG FattenLayerInfo( struct Layer_Info *li );
VOID ThinLayerInfo( struct Layer_Info *li );
LONG MoveLayerInFrontOf( struct Layer *layer_to_move, struct Layer *other_layer );
struct Region *InstallClipRegion( struct Layer *layer, CONST struct Region *region );
LONG MoveSizeLayer( struct Layer *layer, LONG dx, LONG dy, LONG dw, LONG dh );
struct Layer *CreateUpfrontHookLayer( struct Layer_Info *li, struct BitMap *bm, LONG x0, LONG y0, LONG x1, LONG y1, LONG flags, struct Hook *hook, struct BitMap *bm2 );
struct Layer *CreateBehindHookLayer( struct Layer_Info *li, struct BitMap *bm, LONG x0, LONG y0, LONG x1, LONG y1, LONG flags, struct Hook *hook, struct BitMap *bm2 );
struct Hook *InstallLayerHook( struct Layer *layer, struct Hook *hook );
/*--- functions in V39 or higher (Release 3) ---*/
struct Hook *InstallLayerInfoHook( struct Layer_Info *li, CONST struct Hook *hook );
VOID SortLayerCR( struct Layer *layer, LONG dx, LONG dy );
VOID DoHookClipRects( struct Hook *hook, struct RastPort *rport, CONST struct Rectangle *rect );

#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif   /* CLIB_LAYERS_PROTOS_H */