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- #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 /* during BeginUpdate */
- /* or during layerop */
- /* this happens if out of memory */
- #define LMN_REGION -1
-
- struct Layer_Info
- {
- struct Layer *top_layer;
- struct Layer *check_lp; /* system use */
- struct ClipRect *obs; /* system use */
- struct MinList FreeClipRects;
- struct SignalSemaphore Lock;
- struct List gs_Head; /* system use */
- 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 /* GRAPHICS_LAYERS_H */
-