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
  40   ASSERT(pso);
  41   ASSERT(pRect);
  42   LineWidth  = pRect->right - pRect->left;
  43   DPRINT(" LineWidth: %d, top: %d, bottom: %d\n", LineWidth, pRect->top, pRect->bottom);
  44   for (y = pRect->top; y < pRect->bottom; y++)
  45   {
  46     DibFunctionsForBitmapFormat[pso->iBitmapFormat].DIB_HLine(
  47       pso, pRect->left, pRect->right, y, iColor);
  48   }
  49   return TRUE;
  50 }
  51
  52 BOOL APIENTRY
  53 EngPaintRgn(SURFOBJ *pso, CLIPOBJ *ClipRegion, ULONG iColor, MIX Mix,
  54             BRUSHOBJ *BrushObj, POINTL *BrushPoint)
  55 {
  56   RECT_ENUM RectEnum;
  57   BOOL EnumMore;
  58   ULONG i;
  59
  60   ASSERT(pso);
  61   ASSERT(ClipRegion);
  62
  63   DPRINT("ClipRegion->iMode:%d, ClipRegion->iDComplexity: %d\n Color: %d", ClipRegion->iMode, ClipRegion->iDComplexity, iColor);
  64   switch(ClipRegion->iMode) {
  65
  66     case TC_RECTANGLES:
  67
  68     /* Rectangular clipping can be handled without enumeration.
  69        Note that trivial clipping is not possible, since the clipping
  70        region defines the area to fill */
  71
  72     if (ClipRegion->iDComplexity == DC_RECT)
  73     {
  74       FillSolid(pso, &(ClipRegion->rclBounds), iColor);
  75     } else {
  76
  77       /* Enumerate all the rectangles and draw them */
  78       CLIPOBJ_cEnumStart(ClipRegion, FALSE, CT_RECTANGLES, CD_ANY, 0);
  79
  80       do {
  81         EnumMore = CLIPOBJ_bEnum(ClipRegion, sizeof(RectEnum), (PVOID) &RectEnum);
  82         for (i = 0; i < RectEnum.c; i++) {
  83           FillSolid(pso, RectEnum.arcl + i, iColor);
  84         }
  85       } while (EnumMore);
  86     }
  87
  88     return(TRUE);
  89
  90     default:
  91        return(FALSE);
  92   }
  93 }
  94
  95 /*
  96  * @unimplemented
  97  */
  98 BOOL APIENTRY
  99 EngPaint(IN SURFOBJ *pso,
 100          IN CLIPOBJ *ClipRegion,
 101          IN BRUSHOBJ *Brush,
 102          IN POINTL *BrushOrigin,
 103          IN MIX  Mix)
 104 {
 105   BOOLEAN ret;
 106
 107   // FIXME: We only support a brush's solid color attribute
 108   ret = EngPaintRgn(pso, ClipRegion, Brush->iSolidColor, Mix, Brush, BrushOrigin);
 109
 110   return ret;
 111 }
 112
 113 BOOL APIENTRY
 114 IntEngPaint(IN SURFOBJ *pso,
 115             IN CLIPOBJ *ClipRegion,
 116             IN BRUSHOBJ *Brush,
 117             IN POINTL *BrushOrigin,
 118             IN MIX  Mix)
 119 {
 120   SURFACE *psurf = CONTAINING_RECORD(pso, SURFACE, SurfObj);
 121   BOOL ret;
 122
 123   DPRINT("pso->iType == %d\n", pso->iType);
 124   /* Is the surface's Paint function hooked? */
 125   if((pso->iType!=STYPE_BITMAP) && (psurf->flags & HOOK_PAINT))
 126   {
 127     // Call the driver's DrvPaint
 128     ret = GDIDEVFUNCS(pso).Paint(
 129       pso, ClipRegion, Brush, BrushOrigin, Mix);
 130     return ret;
 131   }
 132   return EngPaint(pso, ClipRegion, Brush, BrushOrigin, Mix );
 133
 134 }
 135 /* EOF */