rom/hyperlayers/layers_intern.h

   1 /*
   2     Copyright © 1995-2006, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: Internal information for layers.library.
   6     Lang:
   7 */
   8 #ifndef _LAYERS_INTERN_H_
   9 #define _LAYERS_INTERN_H_
  10
  11 #include <exec/types.h>
  12 #include <exec/lists.h>
  13 #include <exec/libraries.h>
  14 #include <graphics/gfx.h>
  15 #include <graphics/rastport.h>
  16 #include <graphics/clip.h>
  17 #include <graphics/layers.h>
  18 #include <setjmp.h>
  19 #include <dos/dos.h>   /* BPTR below */
  20
  21 #include LC_LIBDEFS_FILE
  22
  23
  24 #include "../graphics/intregions.h"
  25
  26 LIBBASETYPE
  27 {
  28     struct Library          lb_LibNode;
  29
  30     struct SignalSemaphore  lb_MemLock;
  31     APTR                    lb_ClipRectPool;
  32 };
  33
  34 struct IntLayer
  35 {
  36     struct Layer lay;
  37     struct Hook  *shapehook;
  38     ULONG        intflags;
  39 };
  40
  41 #define IL(x) ((struct IntLayer *)(x))
  42
  43 #define INTFLAG_AVOID_BACKFILL 1
  44
  45 struct LayerInfo_extra
  46 {
  47 #if 0
  48     ULONG          lie_ReturnAddr;     // used by setjmp/longjmp, equals jmp_buf
  49     ULONG          lie_Regs[12];       // D2-D7/A2-SP
  50 #else
  51     jmp_buf        lie_JumpBuf;
  52 #endif
  53     struct MinList lie_ResourceList;
  54     UBYTE          lie_pad[4];
  55 };
  56
  57 /*
  58  * These are special types of ResData resources. If layers finds one of
  59  * these values in ResData->Size, it performs some special handling to
  60  * properly dispose of the allocated Region or BitMap, respectively
  61  * (throught DisposeRegion or FreeBitMap). In all other cases,
  62  * ResData->Size is an argument for a freemem operation.
  63  */
  64 #define RD_REGION -1
  65 #define RD_BITMAP -2
  66
  67 struct ResData
  68 {
  69     void *ptr;
  70     ULONG Size;
  71 };
  72
  73 struct ResourceNode
  74 {
  75     struct Node     rn_Link;
  76     struct ResData *rn_FirstFree;
  77     LONG            rn_FreeCnt;
  78     struct ResData  rn_Data[48];
  79 };
  80
  81
  82 /*
  83 ** The smart refresh flag is set for super bitmap as well as smart refresh
  84 ** layers
  85 */
  86 #define IS_SIMPLEREFRESH(l) (0 != ((l)->Flags & LAYERSIMPLE))
  87 #define IS_SMARTREFRESH(l)  (LAYERSMART == ((l)->Flags & (LAYERSMART|LAYERSUPER)))
  88 #define IS_SUPERREFRESH(l)  (0 != ((l)->Flags & LAYERSUPER))
  89
  90
  91 int _MoveLayerBehind(struct Layer *l,
  92                      struct Layer *lfront,
  93                      LIBBASETYPEPTR LayersBase);
  94 int _MoveLayerToFront(struct Layer * l,
  95                       struct Layer * lbehind,
  96                       LIBBASETYPEPTR LayersBase);
  97
  98
  99 #endif /* _LAYERS_INTERN_H */