rom/graphics/setabpendrmd.c

   1 /*
   2     Copyright © 1995-2001, The AROS Development Team. All rights reserved.
   3     $Id$        $Log
   4
   5     Desc: Graphics function SetABPenDrMd()
   6     Lang: english
   7 */
   8 #include "graphics_intern.h"
   9 #include <proto/oop.h>
  10 #include "gfxfuncsupport.h"
  11
  12 /*****************************************************************************
  13
  14     NAME */
  15 #include <graphics/rastport.h>
  16 #include <proto/graphics.h>
  17
  18         AROS_LH4(void, SetABPenDrMd,
  19
  20 /*  SYNOPSIS */
  21         AROS_LHA(struct RastPort *, rp, A1),
  22         AROS_LHA(ULONG            , apen, D0),
  23         AROS_LHA(ULONG            , bpen, D1),
  24         AROS_LHA(ULONG            , drawMode, D2),
  25
  26 /*  LOCATION */
  27         struct GfxBase *, GfxBase, 149, Graphics)
  28
  29 /*  FUNCTION
  30         Changes the foreground and background pen and the drawmode in one
  31         step.
  32
  33     INPUTS
  34         rp - Modify this RastPort
  35         apen - The new foreground pen
  36         bpen - The new background pen
  37         drawmode - The new drawmode
  38
  39     RESULT
  40         None.
  41
  42     NOTES
  43         This function is faster than the sequence SetAPen(), SetBPen(),
  44         SetDrMd().
  45
  46     EXAMPLE
  47
  48     BUGS
  49
  50     SEE ALSO
  51
  52     INTERNALS
  53
  54     HISTORY
  55         29-10-95    digulla automatically created from
  56                             graphics_lib.fd and clib/graphics_protos.h
  57
  58 *****************************************************************************/
  59 {
  60     AROS_LIBFUNC_INIT
  61     AROS_LIBBASE_EXT_DECL(struct GfxBase *,GfxBase)
  62
  63     struct gfx_driverdata *dd;
  64
  65     if (OBTAIN_DRIVERDATA(rp, GfxBase))
  66     {
  67
  68         dd = GetDriverData(rp);
  69         if (dd)
  70         {
  71             struct TagItem gc_tags[] =
  72             {
  73                 { aHidd_GC_Foreground           , 0                     },
  74                 { aHidd_GC_Background           , 0                     },
  75                 { aHidd_GC_ColorExpansionMode   , 0UL                   },
  76                 { aHidd_GC_DrawMode             , vHidd_GC_DrawMode_Copy},
  77                 { TAG_DONE                                              }
  78             };
  79
  80             gc_tags[0].ti_Data = rp->BitMap ? BM_PIXEL(rp->BitMap, apen & PEN_MASK) : apen;
  81             gc_tags[1].ti_Data = rp->BitMap ? BM_PIXEL(rp->BitMap, bpen & PEN_MASK) : bpen;
  82
  83             if (drawMode & JAM2)
  84             {
  85                 gc_tags[2].ti_Data = vHidd_GC_ColExp_Opaque;
  86             }
  87             else if (drawMode & COMPLEMENT)
  88             {
  89                 gc_tags[3].ti_Data = vHidd_GC_DrawMode_Invert;
  90             }
  91             else if ((drawMode & (~INVERSVID)) == JAM1)
  92             {
  93                 gc_tags[2].ti_Data = vHidd_GC_ColExp_Transparent;
  94             }
  95
  96             OOP_SetAttrs(dd->dd_GC, gc_tags);
  97
  98         }
  99
 100         RELEASE_DRIVERDATA(rp, GfxBase);
 101
 102     } /* if (OBTAIN_DRIVERDATA(rp, GfxBase)) */
 103
 104     /* Do it after the driver to allow it to inspect the previous value */
 105     rp->FgPen = apen;
 106     rp->BgPen = bpen;
 107     rp->DrawMode = drawMode;
 108     rp->linpatcnt = 15;
 109
 110     AROS_LIBFUNC_EXIT
 111 } /* SetABPenDrMd */