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 "debugtools.h"
  11
  12 DEFAULT_DEBUG_CHANNEL(win16drv)
  13
  14 /**********************************************************************
  15  *           WIN16DRV_MoveToEx
  16  */
  17 BOOL
  18 WIN16DRV_MoveToEx(DC *dc,INT x,INT y,LPPOINT pt)
  19 {
  20     if (pt)
  21     {
  22         pt->x = dc->w.CursPosX;
  23         pt->y = dc->w.CursPosY;
  24     }
  25     dc->w.CursPosX = x;
  26     dc->w.CursPosY = y;
  27     return TRUE;
  28 }
  29
  30 /***********************************************************************
  31  *           WIN16DRV_LineTo
  32  */
  33 BOOL
  34 WIN16DRV_LineTo( DC *dc, INT x, INT y )
  35 {
  36     BOOL bRet ;
  37     WIN16DRV_PDEVICE *physDev = (WIN16DRV_PDEVICE *)dc->physDev;
  38     POINT16 points[2];
  39     points[0].x = dc->w.DCOrgX + XLPTODP( dc, dc->w.CursPosX );
  40     points[0].y = dc->w.DCOrgY + YLPTODP( dc, dc->w.CursPosY );
  41     points[1].x = dc->w.DCOrgX + XLPTODP( dc, x );
  42     points[1].y = dc->w.DCOrgY + YLPTODP( dc, y );
  43     bRet = PRTDRV_Output(physDev->segptrPDEVICE,
  44                          OS_POLYLINE, 2, points,
  45                          physDev->PenInfo,
  46                          NULL,
  47                          win16drv_SegPtr_DrawMode, dc->w.hClipRgn);
  48
  49     dc->w.CursPosX = x;
  50     dc->w.CursPosY = y;
  51     return TRUE;
  52 }
  53
  54
  55 /***********************************************************************
  56  *           WIN16DRV_Rectangle
  57  */
  58 BOOL
  59 WIN16DRV_Rectangle(DC *dc, INT left, INT top, INT right, INT bottom)
  60 {
  61     WIN16DRV_PDEVICE *physDev = (WIN16DRV_PDEVICE *)dc->physDev;
  62     BOOL bRet = 0;
  63     POINT16 points[2];
  64
  65     TRACE("In WIN16DRV_Rectangle, x %d y %d DCOrgX %d y %d\n",
  66            left, top, dc->w.DCOrgX, dc->w.DCOrgY);
  67     TRACE("In WIN16DRV_Rectangle, VPortOrgX %d y %d\n",
  68            dc->vportOrgX, dc->vportOrgY);
  69     points[0].x = XLPTODP(dc, left);
  70     points[0].y = YLPTODP(dc, top);
  71
  72     points[1].x = XLPTODP(dc, right);
  73     points[1].y = YLPTODP(dc, bottom);
  74     bRet = PRTDRV_Output(physDev->segptrPDEVICE,
  75                            OS_RECTANGLE, 2, points,
  76                            physDev->PenInfo,
  77                            physDev->BrushInfo,
  78                            win16drv_SegPtr_DrawMode, dc->w.hClipRgn);
  79     return bRet;
  80 }
  81
  82
  83
  84
  85 /***********************************************************************
  86  *           WIN16DRV_Polygon
  87  */
  88 BOOL
  89 WIN16DRV_Polygon(DC *dc, const POINT* pt, INT count )
  90 {
  91     WIN16DRV_PDEVICE *physDev = (WIN16DRV_PDEVICE *)dc->physDev;
  92     BOOL bRet = 0;
  93     LPPOINT16 points;
  94     int i;
  95
  96     if(count < 2) return TRUE;
  97     if(pt[0].x != pt[count-1].x || pt[0].y != pt[count-1].y)
  98         count++; /* Ensure polygon is closed */
  99
 100     points = HEAP_xalloc( GetProcessHeap(), 0, count * sizeof(POINT16) );
 101     for (i = 0; i < count - 1; i++)
 102     {
 103       points[i].x = XLPTODP( dc, pt[i].x );
 104       points[i].y = YLPTODP( dc, pt[i].y );
 105     }
 106     points[count-1].x = points[0].x;
 107     points[count-1].y = points[0].y;
 108     bRet = PRTDRV_Output(physDev->segptrPDEVICE,
 109                          OS_WINDPOLYGON, count, points,
 110                          physDev->PenInfo,
 111                          physDev->BrushInfo,
 112                          win16drv_SegPtr_DrawMode, dc->w.hClipRgn);
 113     HeapFree( GetProcessHeap(), 0, points );
 114     return bRet;
 115 }
 116
 117
 118 /***********************************************************************
 119  *           WIN16DRV_Polyline
 120  */
 121 BOOL
 122 WIN16DRV_Polyline(DC *dc, const POINT* pt, INT count )
 123 {
 124     WIN16DRV_PDEVICE *physDev = (WIN16DRV_PDEVICE *)dc->physDev;
 125     BOOL bRet = 0;
 126     LPPOINT16 points;
 127     int i;
 128
 129     if(count < 2) return TRUE;
 130
 131     points = HEAP_xalloc( GetProcessHeap(), 0, count * sizeof(POINT16) );
 132     for (i = 0; i < count; i++)
 133     {
 134       points[i].x = XLPTODP( dc, pt[i].x );
 135       points[i].y = YLPTODP( dc, pt[i].y );
 136     }
 137     bRet = PRTDRV_Output(physDev->segptrPDEVICE,
 138                          OS_POLYLINE, count, points,
 139                          physDev->PenInfo,
 140                          NULL,
 141                          win16drv_SegPtr_DrawMode, dc->w.hClipRgn);
 142     HeapFree( GetProcessHeap(), 0, points );
 143     return bRet;
 144 }
 145
 146
 147
 148 /***********************************************************************
 149  *           WIN16DRV_Ellipse
 150  */
 151 BOOL
 152 WIN16DRV_Ellipse(DC *dc, INT left, INT top, INT right, INT bottom)
 153 {
 154     WIN16DRV_PDEVICE *physDev = (WIN16DRV_PDEVICE *)dc->physDev;
 155     BOOL bRet = 0;
 156     POINT16 points[2];
 157     TRACE("In WIN16DRV_Ellipse, x %d y %d DCOrgX %d y %d\n",
 158            left, top, dc->w.DCOrgX, dc->w.DCOrgY);
 159     TRACE("In WIN16DRV_Ellipse, VPortOrgX %d y %d\n",
 160            dc->vportOrgX, dc->vportOrgY);
 161     points[0].x = XLPTODP(dc, left);
 162     points[0].y = YLPTODP(dc, top);
 163
 164     points[1].x = XLPTODP(dc, right);
 165     points[1].y = YLPTODP(dc, bottom);
 166
 167     bRet = PRTDRV_Output(physDev->segptrPDEVICE,
 168                          OS_ELLIPSE, 2, points,
 169                          physDev->PenInfo,
 170                          physDev->BrushInfo,
 171                          win16drv_SegPtr_DrawMode, dc->w.hClipRgn);
 172     return bRet;
 173 }
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