rom/graphics/blttemplate.c

   1 /*
   2     Copyright © 1995-2013, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc:
   6     Lang: english
   7 */
   8
   9 #include <aros/debug.h>
  10 #include <proto/graphics.h>
  11 #include <proto/oop.h>
  12
  13 #include "graphics_intern.h"
  14 #include "gfxfuncsupport.h"
  15
  16 /****************************************************************************************/
  17
  18 struct bt_render_data
  19 {
  20     UBYTE *template;
  21     ULONG  modulo;
  22     WORD   srcx;
  23     UBYTE  inverttemplate;
  24 };
  25
  26 static ULONG blttemplate_render(APTR btr_data, WORD srcx, WORD srcy,
  27                                 OOP_Object *dstbm_obj, OOP_Object *dst_gc,
  28                                 struct Rectangle *rect, struct GfxBase *GfxBase)
  29 {
  30     struct bt_render_data *btrd = btr_data;
  31     WORD                   width  = rect->MaxX - rect->MinX + 1;
  32     WORD                   height = rect->MaxY - rect->MinY + 1;
  33     WORD                   x = srcx + btrd->srcx;
  34     UBYTE                 *template = btrd->template + btrd->modulo * srcy;
  35
  36     HIDD_BM_PutTemplate(dstbm_obj, dst_gc, template, btrd->modulo,
  37                         x, rect->MinX, rect->MinY, width, height, btrd->inverttemplate);
  38
  39     return width * height;
  40 }
  41
  42 /*****************************************************************************
  43
  44     NAME */
  45 #include <clib/graphics_protos.h>
  46
  47         AROS_LH8(void, BltTemplate,
  48
  49 /*  SYNOPSIS */
  50
  51         AROS_LHA(PLANEPTR               , source        , A0),
  52         AROS_LHA(WORD                   , xSrc          , D0),
  53         AROS_LHA(WORD                   , srcMod        , D1),
  54         AROS_LHA(struct RastPort *      , destRP        , A1),
  55         AROS_LHA(WORD                   , xDest         , D2),
  56         AROS_LHA(WORD                   , yDest         , D3),
  57         AROS_LHA(WORD                   , xSize         , D4),
  58         AROS_LHA(WORD                   , ySize         , D5),
  59
  60 /*  LOCATION */
  61         struct GfxBase *, GfxBase, 6, Graphics)
  62
  63 /*  FUNCTION
  64         Draws part of a single-bitplane image into the RastPort in the current
  65         colors (foreground and background) and drawing mode.
  66
  67     INPUTS
  68         source - pointer to the aligned UWORD in which the top-lefthand corner
  69             of the template is located.
  70         xSrc - bit offset of top-lefthand corner of template from start of
  71             UWORD pointed to by 'source' input (0 to 15).
  72         srcMod - number of bytes per row in template's bitplane.
  73         destRP - destination RastPort.
  74         xDest,yDest - upper left corner of destination.
  75         xSize,ySize - size of destination.
  76
  77     RESULT
  78         None.
  79
  80     NOTES
  81         The size and destination coordinates may be outside the RastPort
  82         boundaries, in which case the affected area is safely truncated.
  83
  84     EXAMPLE
  85
  86     BUGS
  87
  88     SEE ALSO
  89
  90     INTERNALS
  91
  92 *****************************************************************************/
  93 {
  94     AROS_LIBFUNC_INIT
  95
  96     struct bt_render_data btrd;
  97     struct Rectangle      rr;
  98
  99     EnterFunc(bug("driver_BltTemplate(%d, %d, %d, %d, %d, %d)\n"
 100         , xSrc, srcMod, xDest, yDest, xSize, ySize));
 101
 102     FIX_GFXCOORD(xDest);
 103     FIX_GFXCOORD(yDest);
 104
 105     btrd.template        = (UBYTE *)source;
 106     btrd.srcx            = xSrc;
 107     btrd.modulo          = srcMod;
 108     btrd.inverttemplate = (destRP->DrawMode & INVERSVID) ? TRUE : FALSE;
 109
 110     rr.MinX = xDest;
 111     rr.MinY = yDest;
 112     rr.MaxX = xDest + xSize  - 1;
 113     rr.MaxY = yDest + ySize - 1;
 114
 115     do_render_func(destRP, NULL, &rr, blttemplate_render, &btrd, TRUE, FALSE, GfxBase);
 116     ReturnVoid("driver_BltTemplate");
 117
 118     AROS_LIBFUNC_EXIT
 119
 120 } /* BltTemplate */