reactos/subsystems/win32/win32k/eng/paint.c

   1 /*
   2  * COPYRIGHT:         See COPYING in the top level directory
   3  * PROJECT:           ReactOS kernel
   4  * PURPOSE:           GDI Driver Paint Functions
   5  * FILE:              subsys/win32k/eng/paint.c
   6  * PROGRAMER:         Jason Filby
   7  */
   8
   9 #include <win32k.h>
  10
  11 #define NDEBUG
  12 #include <debug.h>
  13
  14 BOOL APIENTRY FillSolid(SURFOBJ *pso, PRECTL pRect, ULONG iColor)
  15 {
  16   LONG y;
  17   ULONG LineWidth;
  18
  19   ASSERT(pso);
  20   ASSERT(pRect);
  21   LineWidth  = pRect->right - pRect->left;
  22   DPRINT(" LineWidth: %d, top: %d, bottom: %d\n", LineWidth, pRect->top, pRect->bottom);
  23   for (y = pRect->top; y < pRect->bottom; y++)
  24   {
  25     DibFunctionsForBitmapFormat[pso->iBitmapFormat].DIB_HLine(
  26       pso, pRect->left, pRect->right, y, iColor);
  27   }
  28   return TRUE;
  29 }
  30
  31 BOOL APIENTRY
  32 EngPaintRgn(SURFOBJ *pso, CLIPOBJ *ClipRegion, ULONG iColor, MIX Mix,
  33             BRUSHOBJ *BrushObj, POINTL *BrushPoint)
  34 {
  35   RECT_ENUM RectEnum;
  36   BOOL EnumMore;
  37   ULONG i;
  38
  39   ASSERT(pso);
  40   ASSERT(ClipRegion);
  41
  42   DPRINT("ClipRegion->iMode:%d, ClipRegion->iDComplexity: %d\n Color: %d", ClipRegion->iMode, ClipRegion->iDComplexity, iColor);
  43   switch(ClipRegion->iMode) {
  44
  45     case TC_RECTANGLES:
  46
  47     /* Rectangular clipping can be handled without enumeration.
  48        Note that trivial clipping is not possible, since the clipping
  49        region defines the area to fill */
  50
  51     if (ClipRegion->iDComplexity == DC_RECT)
  52     {
  53       FillSolid(pso, &(ClipRegion->rclBounds), iColor);
  54     } else {
  55
  56       /* Enumerate all the rectangles and draw them */
  57       CLIPOBJ_cEnumStart(ClipRegion, FALSE, CT_RECTANGLES, CD_ANY, 0);
  58
  59       do {
  60         EnumMore = CLIPOBJ_bEnum(ClipRegion, sizeof(RectEnum), (PVOID) &RectEnum);
  61         for (i = 0; i < RectEnum.c; i++) {
  62           FillSolid(pso, RectEnum.arcl + i, iColor);
  63         }
  64       } while (EnumMore);
  65     }
  66
  67     return(TRUE);
  68
  69     default:
  70        return(FALSE);
  71   }
  72 }
  73
  74 /*
  75  * @unimplemented
  76  */
  77 BOOL APIENTRY
  78 EngPaint(IN SURFOBJ *pso,
  79          IN CLIPOBJ *ClipRegion,
  80          IN BRUSHOBJ *Brush,
  81          IN POINTL *BrushOrigin,
  82          IN MIX  Mix)
  83 {
  84   BOOLEAN ret;
  85
  86   // FIXME: We only support a brush's solid color attribute
  87   ret = EngPaintRgn(pso, ClipRegion, Brush->iSolidColor, Mix, Brush, BrushOrigin);
  88
  89   return ret;
  90 }
  91
  92 BOOL APIENTRY
  93 IntEngPaint(IN SURFOBJ *pso,
  94             IN CLIPOBJ *ClipRegion,
  95             IN BRUSHOBJ *Brush,
  96             IN POINTL *BrushOrigin,
  97             IN MIX  Mix)
  98 {
  99   SURFACE *psurf = CONTAINING_RECORD(pso, SURFACE, SurfObj);
 100   BOOL ret;
 101
 102   DPRINT("pso->iType == %d\n", pso->iType);
 103   /* Is the surface's Paint function hooked? */
 104   if((pso->iType!=STYPE_BITMAP) && (psurf->flags & HOOK_PAINT))
 105   {
 106     // Call the driver's DrvPaint
 107     ret = GDIDEVFUNCS(pso).Paint(
 108       pso, ClipRegion, Brush, BrushOrigin, Mix);
 109     return ret;
 110   }
 111   return EngPaint(pso, ClipRegion, Brush, BrushOrigin, Mix );
 112
 113 }
 114 /* EOF */