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