xorg-server-1.4/hw/xfree86/xf4bpp/ppcWindow.c

   1 /*
   2
   3 Copyright (c) 1987  X Consortium
   4
   5 Permission is hereby granted, free of charge, to any person obtaining
   6 a copy of this software and associated documentation files (the
   7 "Software"), to deal in the Software without restriction, including
   8 without limitation the rights to use, copy, modify, merge, publish,
   9 distribute, sublicense, and/or sell copies of the Software, and to
  10 permit persons to whom the Software is furnished to do so, subject to
  11 the following conditions:
  12
  13 The above copyright notice and this permission notice shall be included
  14 in all copies or substantial portions of the Software.
  15
  16 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  17 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  18 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  19 IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20 OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21 ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22 OTHER DEALINGS IN THE SOFTWARE.
  23
  24 Except as contained in this notice, the name of the X Consortium shall
  25 not be used in advertising or otherwise to promote the sale, use or
  26 other dealings in this Software without prior written authorization
  27 from the X Consortium.
  28
  29
  30 Copyright IBM Corporation 1987,1988,1989
  31 All Rights Reserved
  32
  33 Permission to use, copy, modify, and distribute this software and its
  34 documentation for any purpose and without fee is hereby granted,
  35 provided that the above copyright notice appear in all copies and that
  36 both that copyright notice and this permission notice appear in
  37 supporting documentation, and that the name of IBM not be
  38 used in advertising or publicity pertaining to distribution of the
  39 software without specific, written prior permission.
  40
  41 IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
  42 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
  43 IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
  44 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  45 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
  46 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
  47 SOFTWARE.
  48
  49
  50 Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts,
  51 All Rights Reserved
  52
  53 Permission to use, copy, modify, and distribute this software and its
  54 documentation for any purpose and without fee is hereby granted,
  55 provided that the above copyright notice appear in all copies and that
  56 both that copyright notice and this permission notice appear in
  57 supporting documentation, and that the name of Digital not be
  58 used in advertising or publicity pertaining to distribution of the
  59 software without specific, written prior permission.
  60
  61 DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
  62 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
  63 DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
  64 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  65 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
  66 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
  67 SOFTWARE.
  68
  69 */
  70
  71 #ifdef HAVE_XORG_CONFIG_H
  72 #include <xorg-config.h>
  73 #endif
  74
  75 #include <stdlib.h>
  76
  77 #include "xf4bpp.h"
  78 #include "mfbmap.h"
  79 #include "mfb.h"
  80 #include "scrnintstr.h"
  81 #include "ibmTrace.h"
  82
  83 /*
  84    xf4bppCopyWindow copies only the parts of the destination that are
  85 visible in the source.
  86 */
  87
  88 void
  89 xf4bppCopyWindow(pWin, ptOldOrg, prgnSrc)
  90     register WindowPtr pWin ;
  91     DDXPointRec ptOldOrg ;
  92     RegionPtr prgnSrc ;
  93 {
  94     RegionPtr prgnDst ;
  95     register BoxPtr pbox ;
  96     register int dx, dy ;
  97     register int nbox ;
  98     register int pm ;
  99
 100     BoxPtr pboxTmp, pboxNext, pboxBase, pboxNew ;
 101                                 /* temporaries for shuffling rectangles */
 102
 103     TRACE(("xf4bppCopyWindow(pWin= 0x%x, ptOldOrg= 0x%x, prgnSrc= 0x%x)\n", pWin, ptOldOrg, prgnSrc)) ;
 104
 105
 106     dx = ptOldOrg.x - pWin->drawable.x ;
 107     dy = ptOldOrg.y - pWin->drawable.y ;
 108     REGION_TRANSLATE(pWin->drawable.pScreen, prgnSrc, -dx, -dy);
 109
 110     prgnDst = REGION_CREATE(pWin->drawable.pScreen, NULL, 1);
 111     REGION_INTERSECT(pWin->drawable.pScreen, prgnDst,
 112                      &pWin->borderClip, prgnSrc);
 113
 114     if ( !( nbox = REGION_NUM_RECTS(prgnDst) ) )
 115         return;
 116
 117     pbox = REGION_RECTS(prgnDst);
 118
 119     pboxNew = 0 ;
 120     if ( nbox > 1 ) {
 121         if ( dy < 0 ) {
 122             if ( dx > 0 ) {
 123                 /* walk source bottom to top */
 124                 /* keep ordering in each band, reverse order of bands */
 125                 if ( !( pboxNew =
 126                         (BoxPtr) ALLOCATE_LOCAL( sizeof( BoxRec ) * nbox ) ) )
 127                         return ;
 128                 pboxBase = pboxNext = pbox+nbox - 1 ;
 129                 while ( pboxBase >= pbox ) {
 130                         while ( ( pboxNext >= pbox )
 131                              && ( pboxBase->y1 == pboxNext->y1 ) )
 132                                 pboxNext-- ;
 133                         pboxTmp = pboxNext + 1 ;
 134                         while ( pboxTmp <= pboxBase )
 135                                 *pboxNew++ = *pboxTmp++ ;
 136                         pboxBase = pboxNext ;
 137                 }
 138                 pboxNew -= nbox ;
 139                 pbox = pboxNew ;
 140             }
 141             else { /* dx <= 0 */
 142                 /* we can just reverse the entire list in place */
 143                 /* Do three-position swaps */
 144                 BoxRec tmpBox ;
 145
 146                 pboxBase = pbox ;
 147                 pboxNext = pbox + nbox - 1 ;
 148                 while ( pboxBase < pboxNext ) {
 149                         /* ****** Warning Structure Assignment !! ****** */
 150                         tmpBox    = *pboxBase ;
 151                         *pboxBase = *pboxNext ;
 152                         *pboxNext = tmpBox ;
 153                         pboxBase++ ;
 154                         pboxNext-- ;
 155                 }
 156             }
 157         }
 158         else if ( dx < 0 ) {
 159         /* walk source right to left */
 160             /* reverse order of rects in each band */
 161             if ( !( pboxNew = (BoxPtr)ALLOCATE_LOCAL(sizeof(BoxRec) * nbox) ) )
 162                 return ;
 163             pboxBase = pboxNext = pbox ;
 164             while (pboxBase < pbox+nbox)
 165             {
 166                 while ((pboxNext < pbox+nbox) &&
 167                        (pboxNext->y1 == pboxBase->y1))
 168                     pboxNext++ ;
 169                 pboxTmp = pboxNext ;
 170                 while (pboxTmp != pboxBase)
 171                     *pboxNew++ = *--pboxTmp ;
 172                 pboxBase = pboxNext ;
 173             }
 174             pboxNew -= nbox ;
 175             pbox = pboxNew ;
 176         }
 177     } /* END if nbox > 1 */
 178
 179     /*
 180      * call blit several times, the parms are:
 181      *   blit( alu,rplanes, wplanes, srcx, srcy, destx, desty, width, height ) ;
 182      */
 183
 184     pm = ( 1 << pWin->drawable.depth ) - 1 ;
 185     for ( ; nbox-- ; pbox++ )
 186         xf4bppBitBlt( pWin, GXcopy, pm,
 187                  pbox->x1 + dx, pbox->y1 + dy,
 188                  pbox->x1, pbox->y1,
 189                  pbox->x2 - pbox->x1, pbox->y2 - pbox->y1) ;
 190
 191     /* free up stuff */
 192     if ( pboxNew )
 193         DEALLOCATE_LOCAL( pboxNew ) ;
 194
 195     REGION_DESTROY(pWin->drawable.pScreen, prgnDst);
 196 }
 197
 198 Bool xf4bppPositionWindow(pWin, x, y)
 199 register WindowPtr pWin ;
 200 register int x, y ;
 201 {
 202     return TRUE ;
 203 }
 204
 205 Bool
 206 xf4bppDestroyWindow(pWin)
 207 register WindowPtr pWin ;
 208 {
 209 return pWin ? TRUE : FALSE ;
 210 }
 211
 212 /* As The Name Says -- Used For ega, vga and apa8c */
 213 Bool
 214 xf4bppCreateWindowForXYhardware(pWin)
 215 register WindowPtr pWin ;
 216 {
 217     register mfbPrivWin *pPrivWin;
 218
 219     TRACE(("xf4bppCreateWindowForXYhardware (pWin= 0x%x)\n", pWin));
 220
 221     pPrivWin = (mfbPrivWin *)(pWin->devPrivates[mfbGetWindowPrivateIndex()].ptr);
 222     pPrivWin->pRotatedBorder = NullPixmap;
 223     pPrivWin->pRotatedBackground = NullPixmap;
 224     pPrivWin->fastBackground = 0;
 225     pPrivWin->fastBorder = 0;
 226
 227     return TRUE;
 228 }