compiler/include/graphics/clip.h

   1 #ifndef GRAPHICS_CLIP_H
   2 #define GRAPHICS_CLIP_H
   3
   4 /*
   5     Copyright © 1995-2001, The AROS Development Team. All rights reserved.
   6     $Id$
   7
   8     Desc: Clip descriptions.
   9     Lang: english
  10 */
  11
  12 #ifndef EXEC_SEMAPHORES_H
  13 #   include <exec/semaphores.h>
  14 #endif
  15 #ifndef EXEC_TYPES_H
  16 #   include <exec/types.h>
  17 #endif
  18 #ifndef GRAPHICS_GFX_H
  19 #   include <graphics/gfx.h>
  20 #endif
  21 #ifndef INTUITION_INTUITION_H
  22 #   include <intuition/intuition.h>
  23 #endif
  24
  25 #ifndef UTILITY_HOOKS_H
  26 #   include <utility/hooks.h>
  27 #endif
  28
  29 #define NEWLOCKS
  30
  31
  32 struct Layer
  33 {
  34     struct Layer            * front;
  35     struct Layer            * back;
  36     struct ClipRect         * ClipRect;
  37     struct RastPort         * rp;
  38     struct Rectangle          bounds;
  39
  40 #if 1
  41     struct Layer            * parent;                   /* PRIVATE !!! */
  42 #else
  43     UBYTE                     reserved[4];
  44 #endif
  45     UWORD                     priority;
  46     UWORD                     Flags;
  47
  48     struct BitMap           * SuperBitMap;
  49     struct ClipRect         * SuperClipRect;
  50
  51     APTR                      Window;
  52     WORD                      Scroll_X;
  53     WORD                      Scroll_Y;
  54
  55     struct ClipRect         * cr;
  56     struct ClipRect         * cr2;
  57     struct ClipRect         * crnew;
  58     struct ClipRect         * SuperSaveClipRects;
  59     struct ClipRect         * _cliprects;
  60
  61     struct Layer_Info       * LayerInfo;
  62     struct SignalSemaphore    Lock;
  63     struct Hook             * BackFill;
  64
  65 #if 1
  66     struct Region           * VisibleRegion;            /* PRIVATE !!! */
  67 #else
  68     ULONG                     reserved1;
  69 #endif
  70
  71     struct Region           * ClipRegion;
  72     struct Region           * saveClipRects;
  73
  74     WORD                      Width;
  75     WORD                      Height;
  76
  77 #if 1
  78     struct Region           * shape;                    /* PRIVATE !!! */
  79     struct Region           * shaperegion;              /* PRIVATE !!! */
  80     struct Region           * visibleshape;             /* PRIVATE !!! */
  81
  82     UWORD                     nesting;                  /* PRIVATE !!! */
  83     UBYTE                     SuperSaveClipRectCounter; /* PRIVATE !!! */
  84     UBYTE                     visible;                  /* PRIVATE !!! */
  85
  86     UBYTE                     reserved2[2];
  87 #else
  88     UBYTE                     reserved2[18];
  89 #endif
  90
  91     struct Region           * DamageList;
  92 };
  93
  94 #define MAXSUPERSAVECLIPRECTS   20      /* Max. number of cliprects that are kept preallocated in the list */
  95
  96 struct ClipRect
  97 {
  98     struct ClipRect         * Next;
  99     struct ClipRect         * prev;
 100     struct Layer            * lobs;
 101     struct BitMap           * BitMap;
 102     struct Rectangle          bounds;
 103
 104     void                    * _p1;
 105     void                    * _p2;
 106     LONG                      reserved;
 107     LONG                      Flags;
 108 };
 109
 110 /* PRIVATE */
 111 #define CR_NEEDS_NO_CONCEALED_RASTERS 1
 112 #define CR_NEEDS_NO_LAYERBLIT_DAMAGE  2
 113
 114 #define ISLESSX (1<<0)
 115 #define ISLESSY (1<<1)
 116 #define ISGRTRX (1<<2)
 117 #define ISGRTRY (1<<3)
 118
 119 /* This one is used for determining optimal offset for blitting into
 120 cliprects */
 121 #define ALIGN_OFFSET(x) ((x) & 0x0F)
 122
 123
 124 #define LA_Priority     WA_Priority
 125 #define LA_Hook         WA_BackFill
 126 #define LA_SuperBitMap  WA_SuperBitMap
 127 #define LA_ChildOf      WA_Parent
 128 #define LA_InFrontOf    WA_InFrontOf
 129 #define LA_Behind       WA_Behind
 130 #define LA_Visible      WA_Visible
 131 #define LA_Shape        WA_Shape
 132 #define LA_ShapeHook    WA_ShapeHook
 133
 134
 135 /*
 136  * Tags for scale layer
 137  */
 138 #define LA_SRCX       0x4000
 139 #define LA_SRCY       0x4001
 140 #define LA_DESTX      0x4002
 141 #define LA_DESTY      0x4003
 142 #define LA_SRCWIDTH   0x4004
 143 #define LA_SRCHEIGHT  0x4005
 144 #define LA_DESTWIDTH  0x4006
 145 #define LA_DESTHEIGHT 0x4007
 146
 147
 148 #define ROOTPRIORITY            0
 149 #define BACKDROPPRIORITY        10
 150 #define UPFRONTPRIORITY         20
 151
 152 #define IS_VISIBLE(l) (TRUE == l->visible)
 153
 154 struct ChangeLayerShapeMsg
 155 {
 156   struct Region   * newshape; // same as passed to ChangeLayerShape()
 157   struct ClipRect * cliprect;
 158   struct Region   * shape;
 159 };
 160
 161 struct CollectPixelsLayerMsg
 162 {
 163   LONG   xSrc;
 164   LONG   ySrc;
 165   LONG   width;
 166   LONG   height;
 167   LONG   xDest;
 168   LONG   yDest;
 169   struct BitMap * bm;
 170   struct Layer *  layer;
 171   ULONG  minterm;
 172 };
 173
 174 /* Msg sent through LA_ShapeHook. Hook function must look like this:
 175
 176     AROS_UFH3(struct Region *, MyShapeFunc,
 177         AROS_UFHA(struct Hook *, hook, A0),
 178         AROS_UFHA(struct Layer *, layer, A2),
 179         AROS_UFHA(struct ShapeHookMsg *, msg, A1))
 180
 181 */
 182
 183 #define SHAPEHOOKACTION_CREATELAYER     0
 184 #define SHAPEHOOKACTION_MOVELAYER           1
 185 #define SHAPEHOOKACTION_SIZELAYER           2
 186 #define SHAPEHOOKACTION_MOVESIZELAYER   3
 187
 188 struct ShapeHookMsg
 189 {
 190     LONG             Action;
 191     struct Layer    *Layer;
 192     struct Region   *ActualShape;
 193     struct Rectangle NewBounds;
 194     struct Rectangle OldBounds;
 195 };
 196
 197 #endif /* GRAPHICS_CLIP_H */
 198