subsystems/win32/win32k/eng/paint.c

   1 /*
   2  *  ReactOS W32 Subsystem
   3  *  Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 ReactOS Team
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License along
  16  *  with this program; if not, write to the Free Software Foundation, Inc.,
  17  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  */
  19 /* $Id$
  20  *
  21  * COPYRIGHT:         See COPYING in the top level directory
  22  * PROJECT:           ReactOS kernel
  23  * PURPOSE:           GDI Driver Paint Functions
  24  * FILE:              subsys/win32k/eng/paint.c
  25  * PROGRAMER:         Jason Filby
  26  * REVISION HISTORY:
  27  *                 3/7/1999: Created
  28  */
  29
  30 #include <win32k.h>
  31
  32 #define NDEBUG
  33 #include <debug.h>
  34
  35 BOOL APIENTRY FillSolid(SURFOBJ *pso, PRECTL pRect, ULONG iColor)
  36 {
  37   LONG y;
  38   ULONG LineWidth;
  39   SURFACE *psurf;
  40
  41   ASSERT(pso);
  42   ASSERT(pRect);
  43   psurf = CONTAINING_RECORD(pso, SURFACE, SurfObj);
  44   LineWidth  = pRect->right - pRect->left;
  45   DPRINT(" LineWidth: %d, top: %d, bottom: %d\n", LineWidth, pRect->top, pRect->bottom);
  46   for (y = pRect->top; y < pRect->bottom; y++)
  47   {
  48     DibFunctionsForBitmapFormat[pso->iBitmapFormat].DIB_HLine(
  49       pso, pRect->left, pRect->right, y, iColor);
  50   }
  51   return TRUE;
  52 }
  53
  54 BOOL APIENTRY
  55 EngPaintRgn(SURFOBJ *pso, CLIPOBJ *ClipRegion, ULONG iColor, MIX Mix,
  56             BRUSHOBJ *BrushObj, POINTL *BrushPoint)
  57 {
  58   RECT_ENUM RectEnum;
  59   BOOL EnumMore;
  60   ULONG i;
  61
  62   ASSERT(pso);
  63   ASSERT(ClipRegion);
  64
  65   DPRINT("ClipRegion->iMode:%d, ClipRegion->iDComplexity: %d\n Color: %d", ClipRegion->iMode, ClipRegion->iDComplexity, iColor);
  66   switch(ClipRegion->iMode) {
  67
  68     case TC_RECTANGLES:
  69
  70     /* Rectangular clipping can be handled without enumeration.
  71        Note that trivial clipping is not possible, since the clipping
  72        region defines the area to fill */
  73
  74     if (ClipRegion->iDComplexity == DC_RECT)
  75     {
  76       FillSolid(pso, &(ClipRegion->rclBounds), iColor);
  77     } else {
  78
  79       /* Enumerate all the rectangles and draw them */
  80       CLIPOBJ_cEnumStart(ClipRegion, FALSE, CT_RECTANGLES, CD_ANY, 0);
  81
  82       do {
  83         EnumMore = CLIPOBJ_bEnum(ClipRegion, sizeof(RectEnum), (PVOID) &RectEnum);
  84         for (i = 0; i < RectEnum.c; i++) {
  85           FillSolid(pso, RectEnum.arcl + i, iColor);
  86         }
  87       } while (EnumMore);
  88     }
  89
  90     return(TRUE);
  91
  92     default:
  93        return(FALSE);
  94   }
  95 }
  96
  97 /*
  98  * @unimplemented
  99  */
 100 BOOL APIENTRY
 101 EngPaint(IN SURFOBJ *pso,
 102          IN CLIPOBJ *ClipRegion,
 103          IN BRUSHOBJ *Brush,
 104          IN POINTL *BrushOrigin,
 105          IN MIX  Mix)
 106 {
 107   BOOLEAN ret;
 108
 109   // FIXME: We only support a brush's solid color attribute
 110   ret = EngPaintRgn(pso, ClipRegion, Brush->iSolidColor, Mix, Brush, BrushOrigin);
 111
 112   return ret;
 113 }
 114
 115 BOOL APIENTRY
 116 IntEngPaint(IN SURFOBJ *pso,
 117             IN CLIPOBJ *ClipRegion,
 118             IN BRUSHOBJ *Brush,
 119             IN POINTL *BrushOrigin,
 120             IN MIX  Mix)
 121 {
 122   SURFACE *psurf = CONTAINING_RECORD(pso, SURFACE, SurfObj);
 123   BOOL ret;
 124
 125   DPRINT("pso->iType == %d\n", pso->iType);
 126   /* Is the surface's Paint function hooked? */
 127   if((pso->iType!=STYPE_BITMAP) && (psurf->flHooks & HOOK_PAINT))
 128   {
 129     // Call the driver's DrvPaint
 130     ret = GDIDEVFUNCS(pso).Paint(
 131       pso, ClipRegion, Brush, BrushOrigin, Mix);
 132     return ret;
 133   }
 134   return EngPaint(pso, ClipRegion, Brush, BrushOrigin, Mix );
 135
 136 }
 137 /* EOF */