xorg-server-1.4/afb/afbbstore.c

   1 /* Combined Purdue/PurduePlus patches, level 2.0, 1/17/89 */
   2 /*
   3
   4 Copyright (c) 1987  X Consortium
   5
   6 Permission is hereby granted, free of charge, to any person obtaining
   7 a copy of this software and associated documentation files (the
   8 "Software"), to deal in the Software without restriction, including
   9 without limitation the rights to use, copy, modify, merge, publish,
  10 distribute, sublicense, and/or sell copies of the Software, and to
  11 permit persons to whom the Software is furnished to do so, subject to
  12 the following conditions:
  13
  14 The above copyright notice and this permission notice shall be included
  15 in all copies or substantial portions of the Software.
  16
  17 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  20 IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR
  21 OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  22 ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  23 OTHER DEALINGS IN THE SOFTWARE.
  24
  25 Except as contained in this notice, the name of the X Consortium shall
  26 not be used in advertising or otherwise to promote the sale, use or
  27 other dealings in this Software without prior written authorization
  28 from the X Consortium.
  29
  30 */
  31
  32 #ifdef HAVE_DIX_CONFIG_H
  33 #include <dix-config.h>
  34 #endif
  35
  36 #include        "afb.h"
  37 #include        <X11/X.h>
  38 #include        "mibstore.h"
  39 #include        "regionstr.h"
  40 #include        "scrnintstr.h"
  41 #include        "pixmapstr.h"
  42 #include        "windowstr.h"
  43
  44 /*-
  45  *-----------------------------------------------------------------------
  46  * afbSaveAreas --
  47  *              Function called by miSaveAreas to actually fetch the areas to be
  48  *              saved into the backing pixmap. This is very simple to do, since
  49  *              afbDoBitblt is designed for this very thing. The region to save is
  50  *              already destination-relative and we're given the offset to the
  51  *              window origin, so we have only to create an array of points of the
  52  *              u.l. corners of the boxes in the region translated to the screen
  53  *              coordinate system and fetch the screen pixmap out of its devPrivate
  54  *              field....
  55  *
  56  * Results:
  57  *              None.
  58  *
  59  * Side Effects:
  60  *              Data are copied from the screen into the pixmap.
  61  *
  62  *-----------------------------------------------------------------------
  63  */
  64 void
  65 afbSaveAreas(pPixmap, prgnSave, xorg, yorg, pWin)
  66         PixmapPtr                               pPixmap;                /* Backing pixmap */
  67         RegionPtr                               prgnSave;               /* Region to save (pixmap-relative) */
  68         int                                                     xorg;                                   /* X origin of region */
  69         int                                                     yorg;                                   /* Y origin of region */
  70         WindowPtr                               pWin;
  71 {
  72         register DDXPointPtr pPt;
  73         DDXPointPtr                             pPtsInit;
  74         register BoxPtr         pBox;
  75         register int            numRects;
  76
  77         numRects = REGION_NUM_RECTS(prgnSave);
  78         pPtsInit = (DDXPointPtr)ALLOCATE_LOCAL(numRects * sizeof(DDXPointRec));
  79         if (!pPtsInit)
  80                 return;
  81
  82         pBox = REGION_RECTS(prgnSave);
  83         pPt = pPtsInit;
  84         while (numRects--) {
  85                 pPt->x = pBox->x1 + xorg;
  86                 pPt->y = pBox->y1 + yorg;
  87                 pPt++;
  88                 pBox++;
  89         }
  90
  91         afbDoBitblt((DrawablePtr)pPixmap->drawable.pScreen->devPrivates[afbScreenPrivateIndex].ptr,
  92                                 (DrawablePtr)pPixmap,
  93                                 GXcopy,
  94                                 prgnSave,
  95                                 pPtsInit, wBackingBitPlanes (pWin));
  96
  97         DEALLOCATE_LOCAL(pPtsInit);
  98 }
  99
 100 /*-
 101  *-----------------------------------------------------------------------
 102  * afbRestoreAreas --
 103  *              Function called by miRestoreAreas to actually fetch the areas to be
 104  *              restored from the backing pixmap. This is very simple to do, since
 105  *              afbDoBitblt is designed for this very thing. The region to restore is
 106  *              already destination-relative and we're given the offset to the
 107  *              window origin, so we have only to create an array of points of the
 108  *              u.l. corners of the boxes in the region translated to the pixmap
 109  *              coordinate system and fetch the screen pixmap out of its devPrivate
 110  *              field....
 111  *
 112  * Results:
 113  *              None.
 114  *
 115  * Side Effects:
 116  *              Data are copied from the pixmap into the screen.
 117  *
 118  *-----------------------------------------------------------------------
 119  */
 120 void
 121 afbRestoreAreas(pPixmap, prgnRestore, xorg, yorg, pWin)
 122         PixmapPtr                               pPixmap;                /* Backing pixmap */
 123         RegionPtr                               prgnRestore;            /* Region to restore (screen-relative)*/
 124         int                                                     xorg;                                   /* X origin of window */
 125         int                                                     yorg;                                   /* Y origin of window */
 126         WindowPtr                               pWin;
 127 {
 128         register DDXPointPtr pPt;
 129         DDXPointPtr                             pPtsInit;
 130         register BoxPtr         pBox;
 131         register int            numRects;
 132
 133         numRects = REGION_NUM_RECTS(prgnRestore);
 134         pPtsInit = (DDXPointPtr)ALLOCATE_LOCAL(numRects*sizeof(DDXPointRec));
 135         if (!pPtsInit)
 136                 return;
 137
 138         pBox = REGION_RECTS(prgnRestore);
 139         pPt = pPtsInit;
 140         while (numRects--) {
 141                 pPt->x = pBox->x1 - xorg;
 142                 pPt->y = pBox->y1 - yorg;
 143                 pPt++;
 144                 pBox++;
 145         }
 146
 147         afbDoBitblt((DrawablePtr)pPixmap,
 148                                 (DrawablePtr)pPixmap->drawable.pScreen->devPrivates[afbScreenPrivateIndex].ptr,
 149                                 GXcopy,
 150                                 prgnRestore,
 151                                 pPtsInit, wBackingBitPlanes (pWin));
 152
 153         DEALLOCATE_LOCAL(pPtsInit);
 154 }