graphics/win16drv/graphics.c

   1 /*
   2  * Windows 16 bit device driver graphics functions
   3  *
   4  * Copyright 1997 John Harvey
   5  */
   6
   7 #include <stdio.h>
   8 #include "heap.h"
   9 #include "win16drv.h"
  10 #include "debug.h"
  11
  12 /**********************************************************************
  13  *           WIN16DRV_MoveToEx
  14  */
  15 BOOL32
  16 WIN16DRV_MoveToEx(DC *dc,INT32 x,INT32 y,LPPOINT32 pt)
  17 {
  18     if (pt)
  19     {
  20         pt->x = dc->w.CursPosX;
  21         pt->y = dc->w.CursPosY;
  22     }
  23     dc->w.CursPosX = x;
  24     dc->w.CursPosY = y;
  25     return TRUE;
  26 }
  27
  28 /***********************************************************************
  29  *           WIN16DRV_LineTo
  30  */
  31 BOOL32
  32 WIN16DRV_LineTo( DC *dc, INT32 x, INT32 y )
  33 {
  34     BOOL32 bRet ;
  35     WIN16DRV_PDEVICE *physDev = (WIN16DRV_PDEVICE *)dc->physDev;
  36     POINT16 points[2];
  37     points[0].x = dc->w.DCOrgX + XLPTODP( dc, dc->w.CursPosX );
  38     points[0].y = dc->w.DCOrgY + YLPTODP( dc, dc->w.CursPosY );
  39     points[1].x = dc->w.DCOrgX + XLPTODP( dc, x );
  40     points[1].y = dc->w.DCOrgY + YLPTODP( dc, y );
  41     bRet = PRTDRV_Output(physDev->segptrPDEVICE,
  42                          OS_POLYLINE, 2, points,
  43                          physDev->PenInfo,
  44                          NULL,
  45                          win16drv_SegPtr_DrawMode, dc->w.hClipRgn);
  46
  47     dc->w.CursPosX = x;
  48     dc->w.CursPosY = y;
  49     return TRUE;
  50 }
  51
  52
  53 /***********************************************************************
  54  *           WIN16DRV_Rectangle
  55  */
  56 BOOL32
  57 WIN16DRV_Rectangle(DC *dc, INT32 left, INT32 top, INT32 right, INT32 bottom)
  58 {
  59     WIN16DRV_PDEVICE *physDev = (WIN16DRV_PDEVICE *)dc->physDev;
  60     BOOL32 bRet = 0;
  61     POINT16 points[2];
  62
  63     TRACE(win16drv, "In WIN16DRV_Rectangle, x %d y %d DCOrgX %d y %d\n",
  64            left, top, dc->w.DCOrgX, dc->w.DCOrgY);
  65     TRACE(win16drv, "In WIN16DRV_Rectangle, VPortOrgX %d y %d\n",
  66            dc->vportOrgX, dc->vportOrgY);
  67     points[0].x = XLPTODP(dc, left);
  68     points[0].y = YLPTODP(dc, top);
  69
  70     points[1].x = XLPTODP(dc, right);
  71     points[1].y = YLPTODP(dc, bottom);
  72     bRet = PRTDRV_Output(physDev->segptrPDEVICE,
  73                            OS_RECTANGLE, 2, points,
  74                            physDev->PenInfo,
  75                            physDev->BrushInfo,
  76                            win16drv_SegPtr_DrawMode, dc->w.hClipRgn);
  77     return bRet;
  78 }
  79
  80
  81
  82
  83 /***********************************************************************
  84  *           WIN16DRV_Polygon
  85  */
  86 BOOL32
  87 WIN16DRV_Polygon(DC *dc, const POINT32* pt, INT32 count )
  88 {
  89     WIN16DRV_PDEVICE *physDev = (WIN16DRV_PDEVICE *)dc->physDev;
  90     BOOL32 bRet = 0;
  91     LPPOINT16 points;
  92     int i;
  93
  94     if(count < 2) return TRUE;
  95     if(pt[0].x != pt[count-1].x || pt[0].y != pt[count-1].y)
  96         count++; /* Ensure polygon is closed */
  97
  98     points = HEAP_xalloc( GetProcessHeap(), 0, count * sizeof(POINT16) );
  99     for (i = 0; i < count - 1; i++)
 100     {
 101       points[i].x = XLPTODP( dc, pt[i].x );
 102       points[i].y = YLPTODP( dc, pt[i].y );
 103     }
 104     points[count-1].x = points[0].x;
 105     points[count-1].y = points[0].y;
 106     bRet = PRTDRV_Output(physDev->segptrPDEVICE,
 107                          OS_WINDPOLYGON, count, points,
 108                          physDev->PenInfo,
 109                          physDev->BrushInfo,
 110                          win16drv_SegPtr_DrawMode, dc->w.hClipRgn);
 111     HeapFree( GetProcessHeap(), 0, points );
 112     return bRet;
 113 }
 114
 115
 116 /***********************************************************************
 117  *           WIN16DRV_Polyline
 118  */
 119 BOOL32
 120 WIN16DRV_Polyline(DC *dc, const POINT32* pt, INT32 count )
 121 {
 122     WIN16DRV_PDEVICE *physDev = (WIN16DRV_PDEVICE *)dc->physDev;
 123     BOOL32 bRet = 0;
 124     LPPOINT16 points;
 125     int i;
 126
 127     if(count < 2) return TRUE;
 128
 129     points = HEAP_xalloc( GetProcessHeap(), 0, count * sizeof(POINT16) );
 130     for (i = 0; i < count; i++)
 131     {
 132       points[i].x = XLPTODP( dc, pt[i].x );
 133       points[i].y = YLPTODP( dc, pt[i].y );
 134     }
 135     bRet = PRTDRV_Output(physDev->segptrPDEVICE,
 136                          OS_POLYLINE, count, points,
 137                          physDev->PenInfo,
 138                          NULL,
 139                          win16drv_SegPtr_DrawMode, dc->w.hClipRgn);
 140     HeapFree( GetProcessHeap(), 0, points );
 141     return bRet;
 142 }
 143
 144
 145
 146 /***********************************************************************
 147  *           WIN16DRV_Ellipse
 148  */
 149 BOOL32
 150 WIN16DRV_Ellipse(DC *dc, INT32 left, INT32 top, INT32 right, INT32 bottom)
 151 {
 152     WIN16DRV_PDEVICE *physDev = (WIN16DRV_PDEVICE *)dc->physDev;
 153     BOOL32 bRet = 0;
 154     POINT16 points[2];
 155     TRACE(win16drv, "In WIN16DRV_Ellipse, x %d y %d DCOrgX %d y %d\n",
 156            left, top, dc->w.DCOrgX, dc->w.DCOrgY);
 157     TRACE(win16drv, "In WIN16DRV_Ellipse, VPortOrgX %d y %d\n",
 158            dc->vportOrgX, dc->vportOrgY);
 159     points[0].x = XLPTODP(dc, left);
 160     points[0].y = YLPTODP(dc, top);
 161
 162     points[1].x = XLPTODP(dc, right);
 163     points[1].y = YLPTODP(dc, bottom);
 164
 165     bRet = PRTDRV_Output(physDev->segptrPDEVICE,
 166                          OS_ELLIPSE, 2, points,
 167                          physDev->PenInfo,
 168                          physDev->BrushInfo,
 169                          win16drv_SegPtr_DrawMode, dc->w.hClipRgn);
 170     return bRet;
 171 }
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