reactos/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 <w32k.h>
  31
  32 #define NDEBUG
  33 #include <debug.h>
  34
  35 static BOOL APIENTRY FillSolidUnlocked(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   MouseSafetyOnDrawStart(pso, pRect->left, pRect->top, pRect->right, pRect->bottom);
  45   LineWidth  = pRect->right - pRect->left;
  46   DPRINT(" LineWidth: %d, top: %d, bottom: %d\n", LineWidth, pRect->top, pRect->bottom);
  47   for (y = pRect->top; y < pRect->bottom; y++)
  48   {
  49     DibFunctionsForBitmapFormat[pso->iBitmapFormat].DIB_HLine(
  50       pso, pRect->left, pRect->right, y, iColor);
  51   }
  52   MouseSafetyOnDrawEnd(pso);
  53
  54   return TRUE;
  55 }
  56
  57 BOOL APIENTRY FillSolid(SURFOBJ *pso, PRECTL pRect, ULONG iColor)
  58 {
  59   SURFACE *psurf;
  60   BOOL Result;
  61   psurf = CONTAINING_RECORD(pso, SURFACE, SurfObj);
  62   SURFACE_LockBitmapBits(psurf);
  63   Result = FillSolidUnlocked(pso, pRect, iColor);
  64   SURFACE_UnlockBitmapBits(psurf);
  65   return Result;
  66 }
  67
  68 BOOL APIENTRY
  69 EngPaintRgn(SURFOBJ *pso, CLIPOBJ *ClipRegion, ULONG iColor, MIX Mix,
  70             BRUSHOBJ *BrushObj, POINTL *BrushPoint)
  71 {
  72   RECT_ENUM RectEnum;
  73   BOOL EnumMore;
  74   ULONG i;
  75
  76   ASSERT(pso);
  77   ASSERT(ClipRegion);
  78
  79   DPRINT("ClipRegion->iMode:%d, ClipRegion->iDComplexity: %d\n Color: %d", ClipRegion->iMode, ClipRegion->iDComplexity, iColor);
  80   switch(ClipRegion->iMode) {
  81
  82     case TC_RECTANGLES:
  83
  84     /* Rectangular clipping can be handled without enumeration.
  85        Note that trivial clipping is not possible, since the clipping
  86        region defines the area to fill */
  87
  88     if (ClipRegion->iDComplexity == DC_RECT)
  89     {
  90       FillSolidUnlocked(pso, &(ClipRegion->rclBounds), iColor);
  91     } else {
  92
  93       /* Enumerate all the rectangles and draw them */
  94       CLIPOBJ_cEnumStart(ClipRegion, FALSE, CT_RECTANGLES, CD_ANY, 0);
  95
  96       do {
  97         EnumMore = CLIPOBJ_bEnum(ClipRegion, sizeof(RectEnum), (PVOID) &RectEnum);
  98         for (i = 0; i < RectEnum.c; i++) {
  99           FillSolidUnlocked(pso, RectEnum.arcl + i, iColor);
 100         }
 101       } while (EnumMore);
 102     }
 103
 104     return(TRUE);
 105
 106     default:
 107        return(FALSE);
 108   }
 109 }
 110
 111 /*
 112  * @unimplemented
 113  */
 114 BOOL APIENTRY
 115 EngPaint(IN SURFOBJ *pso,
 116          IN CLIPOBJ *ClipRegion,
 117          IN BRUSHOBJ *Brush,
 118          IN POINTL *BrushOrigin,
 119          IN MIX  Mix)
 120 {
 121   BOOLEAN ret;
 122
 123   // FIXME: We only support a brush's solid color attribute
 124   ret = EngPaintRgn(pso, ClipRegion, Brush->iSolidColor, Mix, Brush, BrushOrigin);
 125
 126   return ret;
 127 }
 128
 129 BOOL APIENTRY
 130 IntEngPaint(IN SURFOBJ *pso,
 131             IN CLIPOBJ *ClipRegion,
 132             IN BRUSHOBJ *Brush,
 133             IN POINTL *BrushOrigin,
 134             IN MIX  Mix)
 135 {
 136   SURFACE *psurf = CONTAINING_RECORD(pso, SURFACE, SurfObj);
 137   BOOL ret;
 138
 139   DPRINT("pso->iType == %d\n", pso->iType);
 140   /* Is the surface's Paint function hooked? */
 141   if((pso->iType!=STYPE_BITMAP) && (psurf->flHooks & HOOK_PAINT))
 142   {
 143     // Call the driver's DrvPaint
 144     SURFACE_LockBitmapBits(psurf);
 145     MouseSafetyOnDrawStart(pso, ClipRegion->rclBounds.left,
 146                                  ClipRegion->rclBounds.top, ClipRegion->rclBounds.right,
 147                                                          ClipRegion->rclBounds.bottom);
 148
 149     ret = GDIDEVFUNCS(pso).Paint(
 150       pso, ClipRegion, Brush, BrushOrigin, Mix);
 151     MouseSafetyOnDrawEnd(pso);
 152     SURFACE_UnlockBitmapBits(psurf);
 153     return ret;
 154   }
 155   return EngPaint(pso, ClipRegion, Brush, BrushOrigin, Mix );
 156
 157 }
 158 /* EOF */