dlls/winedib.drv/bitmap.c

   1 /*
   2  * DIB driver bitmap objects
   3  *
   4  * Copyright 2009 Massimo Del Fedele
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include "dibdrv.h"
  25
  26 WINE_DEFAULT_DEBUG_CHANNEL(dibdrv);
  27
  28
  29 /****************************************************************************
  30  *       SelectBitmap   (WINEDIB.DRV.@)
  31  */
  32 HBITMAP DIBDRV_SelectBitmap( DIBDRVPHYSDEV *physDev, HBITMAP hbitmap )
  33 {
  34     DIBSECTION dibSection;
  35     HBITMAP res;
  36
  37     MAYBE(TRACE("physDev:%p, hbitmap:%p\n", physDev, hbitmap));
  38
  39     /* try to get the DIBSECTION data from the bitmap */
  40     if(GetObjectW(hbitmap, sizeof(DIBSECTION), &dibSection) != sizeof(DIBSECTION))
  41     {
  42         /* not a DIB section, sets it on physDev and use X11 behaviour */
  43
  44         physDev->hasDIB = FALSE;
  45         physDev->physBitmap = NULL;
  46         res = _DIBDRV_GetDisplayDriver()->pSelectBitmap(physDev->X11PhysDev, hbitmap);
  47         if(res)
  48             physDev->hbitmap = hbitmap;
  49     }
  50     else
  51     {
  52         /* it's a DIB section, sets it on physDev and use DIB Engine behaviour */
  53
  54         /* sets the physical bitmap */
  55         if((physDev->physBitmap = _BITMAPLIST_Get(hbitmap)) != NULL)
  56         {
  57             physDev->hasDIB = TRUE;
  58             physDev->hbitmap = hbitmap;
  59             MAYBE(TRACE("physDev->physBitmap:%p(%s)\n", physDev->physBitmap, _DIBDRVBITMAP_GetFormatName(physDev->physBitmap)));
  60             res = hbitmap;
  61         }
  62         else
  63         {
  64             ERR("Physical bitmap %p not found in internal list\n", hbitmap);
  65             physDev->hbitmap = GetStockObject(DEFAULT_BITMAP);
  66             physDev->hasDIB = FALSE;
  67             res = 0;
  68         }
  69     }
  70     return res;
  71 }
  72
  73 /****************************************************************************
  74  *        DIBDRV_CreateBitmap
  75  */
  76 BOOL DIBDRV_CreateBitmap( DIBDRVPHYSDEV *physDev, HBITMAP hbitmap, LPVOID bmBits )
  77 {
  78     DIBSECTION dibSection;
  79     BOOL res;
  80
  81     MAYBE(TRACE("physDev:%p, hbitmap:%p, bmBits:%p\n", physDev, hbitmap, bmBits));
  82
  83     /* try to get the DIBSECTION data from the bitmap */
  84     if(GetObjectW(hbitmap, sizeof(DIBSECTION), &dibSection) == sizeof(BITMAP))
  85     {
  86         /* not a DIB section, use X11 behaviour */
  87         res = _DIBDRV_GetDisplayDriver()->pCreateBitmap(physDev->X11PhysDev, hbitmap, bmBits);
  88     }
  89     else
  90     {
  91         /* it's a DIB section, use DIB Engine behaviour - should not happen, but.... */
  92         ERR("CreateBitmap() called for a DIB section - shouldn't happen\n");
  93         res = TRUE;
  94     }
  95     return res;
  96 }
  97
  98 /***********************************************************************
  99  *           DIBDRV_DeleteBitmap
 100  */
 101 BOOL DIBDRV_DeleteBitmap( HBITMAP hbitmap )
 102 {
 103     DIBSECTION dibSection;
 104     DIBDRVBITMAP *bmp;
 105     BOOL res;
 106
 107     MAYBE(TRACE("hbitmap:%p\n", hbitmap));
 108
 109     /* try to get the DIBSECTION data from the bitmap */
 110     if(GetObjectW(hbitmap, sizeof(DIBSECTION), &dibSection) != sizeof(DIBSECTION))
 111     {
 112         /* not a DIB section, use X11 behaviour */
 113         res = _DIBDRV_GetDisplayDriver()->pDeleteBitmap(hbitmap);
 114     }
 115     else
 116     {
 117         /* it's a DIB section, use DIB Engine behaviour */
 118
 119         /* do not try to delete stock objects */
 120         if(hbitmap == GetStockObject(DEFAULT_BITMAP))
 121             res = TRUE;
 122
 123         /* locates and frees the physical bitmap */
 124         else if((bmp = _BITMAPLIST_Remove(hbitmap)) != NULL)
 125         {
 126             _DIBDRVBITMAP_Free(bmp);
 127             res = TRUE;
 128         }
 129         else
 130         {
 131             ERR("Physical bitmap %p not found in internal list\n", hbitmap);
 132             res = FALSE;
 133         }
 134     }
 135     return res;
 136 }
 137
 138 /***********************************************************************
 139  *           DIBDRV_GetBitmapBits
 140  */
 141 LONG DIBDRV_GetBitmapBits( HBITMAP hbitmap, void *buffer, LONG count )
 142 {
 143     LONG res;
 144
 145     MAYBE(TRACE("hbitmap:%p, buffer:%p, count:%d\n", hbitmap, buffer, count));
 146
 147     /* GetBitmapBits is only valid for DDBs, so use X11 driver */
 148     res =  _DIBDRV_GetDisplayDriver()->pGetBitmapBits(hbitmap, buffer, count);
 149
 150     return res;
 151 }
 152
 153 /******************************************************************************
 154  *             DIBDRV_SetBitmapBits
 155  */
 156 LONG DIBDRV_SetBitmapBits( HBITMAP hbitmap, const void *bits, LONG count )
 157 {
 158     LONG res;
 159
 160     MAYBE(TRACE("hbitmap:%p, bits:%p, count:%d\n", hbitmap, bits, count));
 161
 162     /* SetBitmapBits is only valid for DDBs, so use X11 driver */
 163     res = _DIBDRV_GetDisplayDriver()->pSetBitmapBits(hbitmap, bits, count);
 164
 165     return res;
 166 }