rom/graphics/blttemplate.c

   1 /*
   2     Copyright © 1995-2001, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc:
   6     Lang: english
   7 */
   8 #include <aros/debug.h>
   9 #include <proto/graphics.h>
  10 #include <proto/oop.h>
  11 #include "graphics_intern.h"
  12 #include "gfxfuncsupport.h"
  13
  14 static ULONG blttemplate_render(APTR btr_data, LONG srcx, LONG srcy,
  15                                 OOP_Object *dstbm_obj, OOP_Object *dst_gc,
  16                                 LONG x1, LONG y1, LONG x2, LONG y2,
  17                                 struct GfxBase *GfxBase);
  18
  19 struct bt_render_data
  20 {
  21     UBYTE *template;
  22     ULONG  modulo;
  23     WORD   srcx;
  24     UBYTE  inverttemplate;
  25 };
  26
  27 /*****************************************************************************
  28
  29     NAME */
  30 #include <clib/graphics_protos.h>
  31
  32         AROS_LH8(void, BltTemplate,
  33
  34 /*  SYNOPSIS */
  35
  36         AROS_LHA(PLANEPTR               , source        , A0),
  37         AROS_LHA(LONG                   , xSrc          , D0),
  38         AROS_LHA(LONG                   , srcMod        , D1),
  39         AROS_LHA(struct RastPort *      , destRP        , A1),
  40         AROS_LHA(LONG                   , xDest         , D2),
  41         AROS_LHA(LONG                   , yDest         , D3),
  42         AROS_LHA(LONG                   , xSize         , D4),
  43         AROS_LHA(LONG                   , ySize         , D5),
  44
  45 /*  LOCATION */
  46         struct GfxBase *, GfxBase, 6, Graphics)
  47
  48 /*  FUNCTION
  49         Draws the image in the template into the
  50         RastPort in the current color and drawing mode.
  51
  52     INPUTS
  53         source - template bitplane. Should be Word aligned.
  54         xSrc - x offset in source plane (0...15).
  55         srcMod - BytesPerRow in template mask.
  56         destRP - destination RastPort.
  57         xDest,yDest - upper left corner of destination.
  58         xSize,ySize - size of destination.
  59
  60     RESULT
  61
  62     NOTES
  63
  64     EXAMPLE
  65
  66     BUGS
  67
  68     SEE ALSO
  69
  70     INTERNALS
  71
  72     HISTORY
  73         27-11-96    digulla automatically created from
  74                             graphics_lib.fd and clib/graphics_protos.h
  75
  76 *****************************************************************************/
  77 {
  78     AROS_LIBFUNC_INIT
  79
  80     struct bt_render_data btrd;
  81     struct Rectangle      rr;
  82
  83     EnterFunc(bug("driver_BltTemplate(%d, %d, %d, %d, %d, %d)\n"
  84         , xSrc, srcMod, xDest, yDest, xSize, ySize));
  85
  86     FIX_GFXCOORD(xDest);
  87     FIX_GFXCOORD(yDest);
  88
  89     if (!OBTAIN_DRIVERDATA(destRP, GfxBase))
  90         ReturnVoid("driver_BltTemplate");
  91
  92     btrd.template        = (UBYTE *)source;
  93     btrd.srcx            = xSrc;
  94     btrd.modulo          = srcMod;
  95     btrd.inverttemplate = (destRP->DrawMode & INVERSVID) ? TRUE : FALSE;
  96
  97     rr.MinX = xDest;
  98     rr.MinY = yDest;
  99     rr.MaxX = xDest + xSize  - 1;
 100     rr.MaxY = yDest + ySize - 1;
 101
 102     do_render_func(destRP, NULL, &rr, blttemplate_render, &btrd, TRUE, FALSE, GfxBase);
 103
 104     RELEASE_DRIVERDATA(destRP, GfxBase);
 105
 106     ReturnVoid("driver_BltTemplate");
 107
 108     AROS_LIBFUNC_EXIT
 109
 110 } /* BltTemplate */
 111
 112 /****************************************************************************************/
 113
 114 static ULONG blttemplate_render(APTR btr_data, LONG srcx, LONG srcy,
 115                                 OOP_Object *dstbm_obj, OOP_Object *dst_gc,
 116                                 LONG x1, LONG y1, LONG x2, LONG y2,
 117                                 struct GfxBase *GfxBase)
 118 {
 119     struct bt_render_data  *btrd;
 120     ULONG                   width, height;
 121     WORD                    x;
 122     UBYTE                  *template;
 123
 124     width  = x2 - x1 + 1;
 125     height = y2 - y1 + 1;
 126
 127     btrd = (struct bt_render_data *)btr_data;
 128     x = srcx + btrd->srcx;
 129
 130     template = btrd->template + btrd->modulo * srcy;
 131
 132     HIDD_BM_PutTemplate(dstbm_obj, dst_gc, template, btrd->modulo,
 133                         x, x1, y1, width, height, btrd->inverttemplate);
 134
 135     return width * height;
 136 }