rom/hyperlayers/layers_intern.h

   1 /*
   2     Copyright © 1995-2011, 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/gfxbase.h>
  16 #include <graphics/rastport.h>
  17 #include <graphics/clip.h>
  18 #include <graphics/layers.h>
  19 #include <utility/utility.h>
  20 #include <setjmp.h>
  21 #include <dos/dos.h>   /* BPTR below */
  22 #include <proto/alib.h> /* We redefine NewRectRegion() */
  23
  24 #include LC_LIBDEFS_FILE
  25
  26 #include "intregions.h"
  27
  28 LIBBASETYPE
  29 {
  30     struct Library          lb_LibNode;
  31
  32     APTR                    lb_ClipRectPool;
  33
  34     struct GfxBase *        lb_GfxBase;
  35     struct UtilityBase *    lb_UtilityBase;
  36 };
  37
  38 /* Store library bases in our base, not in .bss. Why not ? */
  39 #define GfxBase     (LIBBASE->lb_GfxBase)
  40 #define UtilityBase (LIBBASE->lb_UtilityBase)
  41
  42 struct IntLayer
  43 {
  44     struct Layer    lay;
  45     struct Hook    *shapehook;
  46     IPTR            window;     /* This is passed to shape hook. Comes from Intuition. */
  47     ULONG           intflags;
  48     struct RastPort rp;         /* lay.rp */
  49 };
  50
  51 #define IL(x) ((struct IntLayer *)(x))
  52
  53 /* Standard layer priorities */
  54 #define ROOTPRIORITY            0
  55 #define BACKDROPPRIORITY        10
  56 #define UPFRONTPRIORITY         20
  57
  58 #define INTFLAG_AVOID_BACKFILL 1
  59
  60 struct LayerInfo_extra
  61 {
  62 #if 0
  63     ULONG          lie_ReturnAddr;     // used by setjmp/longjmp, equals jmp_buf
  64     ULONG          lie_Regs[12];       // D2-D7/A2-SP
  65 #else
  66     jmp_buf        lie_JumpBuf;
  67 #endif
  68     struct MinList lie_ResourceList;
  69     UBYTE          lie_pad[4];
  70 };
  71
  72 /*
  73  * These are special types of ResData resources. If layers finds one of
  74  * these values in ResData->Size, it performs some special handling to
  75  * properly dispose of the allocated Region or BitMap, respectively
  76  * (throught DisposeRegion or FreeBitMap). In all other cases,
  77  * ResData->Size is an argument for a freemem operation.
  78  */
  79 #define RD_REGION -1
  80 #define RD_BITMAP -2
  81
  82 struct ResData
  83 {
  84     void *ptr;
  85     ULONG Size;
  86 };
  87
  88 struct ResourceNode
  89 {
  90     struct Node     rn_Link;
  91     struct ResData *rn_FirstFree;
  92     LONG            rn_FreeCnt;
  93     struct ResData  rn_Data[48];
  94 };
  95
  96
  97 /*
  98 ** The smart refresh flag is set for super bitmap as well as smart refresh
  99 ** layers
 100 */
 101 #define IS_SIMPLEREFRESH(l) (0 != ((l)->Flags & LAYERSIMPLE))
 102 #define IS_SMARTREFRESH(l)  (LAYERSMART == ((l)->Flags & (LAYERSMART|LAYERSUPER)))
 103 #define IS_SUPERREFRESH(l)  (0 != ((l)->Flags & LAYERSUPER))
 104
 105 int _MoveLayerBehind(struct Layer *l,
 106                      struct Layer *lfront,
 107                      LIBBASETYPEPTR LayersBase);
 108 int _MoveLayerToFront(struct Layer * l,
 109                       struct Layer * lbehind,
 110                       LIBBASETYPEPTR LayersBase);
 111
 112 #define NewRectRegion(MinX, MinY, MaxX, MaxY) _NewRectRegion(MinX, MinY, MaxX, MaxY, LIBBASE->lb_GfxBase)
 113
 114 #endif /* _LAYERS_INTERN_H */