xorg-server-1.4/afb/afbwindow.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 a copy
   7 of this software and associated documentation files (the "Software"), to deal
   8 in the Software without restriction, including without limitation the rights
   9 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10 copies of the Software, and to permit persons to whom the Software is
  11 furnished to do so, subject to the following conditions:
  12
  13 The above copyright notice and this permission notice shall be included in
  14 all copies or substantial portions of the Software.
  15
  16 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
  19 X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  20 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  22
  23 Except as contained in this notice, the name of the X Consortium shall not be
  24 used in advertising or otherwise to promote the sale, use or other dealings
  25 in this Software without prior written authorization from the X Consortium.
  26
  27
  28 Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
  29
  30                         All Rights Reserved
  31
  32 Permission to use, copy, modify, and distribute this software and its
  33 documentation for any purpose and without fee is hereby granted,
  34 provided that the above copyright notice appear in all copies and that
  35 both that copyright notice and this permission notice appear in
  36 supporting documentation, and that the name of Digital not be
  37 used in advertising or publicity pertaining to distribution of the
  38 software without specific, written prior permission.
  39
  40 DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
  41 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
  42 DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
  43 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  44 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
  45 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
  46 SOFTWARE.
  47
  48 ******************************************************************/
  49
  50 #ifdef HAVE_DIX_CONFIG_H
  51 #include <dix-config.h>
  52 #endif
  53
  54 #include <stdlib.h>
  55
  56 #include <X11/X.h>
  57 #include "scrnintstr.h"
  58 #include "windowstr.h"
  59 #include "afb.h"
  60 #include "mistruct.h"
  61 #include "regionstr.h"
  62 #include "maskbits.h"
  63
  64 Bool
  65 afbCreateWindow(pWin)
  66         register WindowPtr pWin;
  67 {
  68         register afbPrivWin *pPrivWin;
  69
  70         pPrivWin = (afbPrivWin *)(pWin->devPrivates[afbWindowPrivateIndex].ptr);
  71         pPrivWin->pRotatedBorder = NullPixmap;
  72         pPrivWin->pRotatedBackground = NullPixmap;
  73         pPrivWin->fastBackground = FALSE;
  74         pPrivWin->fastBorder = FALSE;
  75 #ifdef PIXMAP_PER_WINDOW
  76         pWin->devPrivates[frameWindowPrivateIndex].ptr =
  77                         pWin->pDrawable.pScreen->devPrivates[afbScreenPrivateIndex].ptr;
  78 #endif
  79
  80         return (TRUE);
  81 }
  82
  83 /* This always returns true, because Xfree can't fail.  It might be possible
  84  * on some devices for Destroy to fail */
  85 Bool
  86 afbDestroyWindow(pWin)
  87         WindowPtr pWin;
  88 {
  89         register afbPrivWin *pPrivWin;
  90
  91         pPrivWin = (afbPrivWin *)(pWin->devPrivates[afbWindowPrivateIndex].ptr);
  92
  93         if (pPrivWin->pRotatedBorder)
  94                 (*pWin->drawable.pScreen->DestroyPixmap)(pPrivWin->pRotatedBorder);
  95         if (pPrivWin->pRotatedBackground)
  96                 (*pWin->drawable.pScreen->DestroyPixmap)(pPrivWin->pRotatedBackground);
  97
  98         return (TRUE);
  99 }
 100
 101 /*ARGSUSED*/
 102 Bool
 103 afbMapWindow(pWindow)
 104         WindowPtr pWindow;
 105 {
 106         return (TRUE);
 107 }
 108
 109 /* (x, y) is the upper left corner of the window on the screen
 110    do we really need to pass this?  (is it a;ready in pWin->absCorner?)
 111    we only do the rotation for pixmaps that are 32 bits wide (padded
 112 or otherwise.)
 113    afbChangeWindowAttributes() has already put a copy of the pixmap
 114 in pPrivWin->pRotated*
 115 */
 116
 117 /*ARGSUSED*/
 118 Bool
 119 afbPositionWindow(pWin, x, y)
 120         WindowPtr pWin;
 121         int x, y;
 122 {
 123         register afbPrivWin *pPrivWin;
 124         int             reset = 0;
 125
 126         pPrivWin = (afbPrivWin *)(pWin->devPrivates[afbWindowPrivateIndex].ptr);
 127         if (pWin->backgroundState == BackgroundPixmap && pPrivWin->fastBackground) {
 128                 afbXRotatePixmap(pPrivWin->pRotatedBackground,
 129                                                                 pWin->drawable.x - pPrivWin->oldRotate.x);
 130                 afbYRotatePixmap(pPrivWin->pRotatedBackground,
 131                                                                 pWin->drawable.y - pPrivWin->oldRotate.y);
 132                 reset = 1;
 133         }
 134
 135         if (!pWin->borderIsPixel && pPrivWin->fastBorder) {
 136                 while (pWin->backgroundState == ParentRelative)
 137                         pWin = pWin->parent;
 138                 afbXRotatePixmap(pPrivWin->pRotatedBorder,
 139                                                                 pWin->drawable.x - pPrivWin->oldRotate.x);
 140                 afbYRotatePixmap(pPrivWin->pRotatedBorder,
 141                                                                 pWin->drawable.y - pPrivWin->oldRotate.y);
 142                 reset = 1;
 143         }
 144         if (reset) {
 145                 pPrivWin->oldRotate.x = pWin->drawable.x;
 146                 pPrivWin->oldRotate.y = pWin->drawable.y;
 147         }
 148
 149         /* This is the "wrong" fix to the right problem, but it doesn't really
 150          * cost very much.  When the window is moved, we need to invalidate any
 151          * RotatedPixmap that exists in any GC currently validated against this
 152          * window.
 153          */
 154         pWin->drawable.serialNumber = NEXT_SERIAL_NUMBER;
 155
 156         /* Again, we have no failure modes indicated by any of the routines
 157          * we've called, so we have to assume it worked */
 158         return (TRUE);
 159 }
 160
 161 /*ARGSUSED*/
 162 Bool
 163 afbUnmapWindow(pWindow)
 164         WindowPtr pWindow;
 165 {
 166         return (TRUE);
 167 }
 168
 169 /* UNCLEAN!
 170    this code calls the bitblt helper code directly.
 171
 172    afbCopyWindow copies only the parts of the destination that are
 173 visible in the source.
 174 */
 175
 176
 177 void
 178 afbCopyWindow(pWin, ptOldOrg, prgnSrc)
 179         WindowPtr pWin;
 180         DDXPointRec ptOldOrg;
 181         RegionPtr prgnSrc;
 182 {
 183         DDXPointPtr pptSrc;
 184         register DDXPointPtr ppt;
 185         RegionPtr prgnDst;
 186         register BoxPtr pbox;
 187         register int dx, dy;
 188         register int i, nbox;
 189         WindowPtr pwinRoot;
 190
 191         pwinRoot = WindowTable[pWin->drawable.pScreen->myNum];
 192
 193         prgnDst = REGION_CREATE(pWin->drawable.pScreen, NULL, 1);
 194
 195         dx = ptOldOrg.x - pWin->drawable.x;
 196         dy = ptOldOrg.y - pWin->drawable.y;
 197         REGION_TRANSLATE(pWin->drawable.pScreen, prgnSrc, -dx, -dy);
 198         REGION_INTERSECT(pWin->drawable.pScreen, prgnDst, &pWin->borderClip,
 199                                                   prgnSrc);
 200
 201         pbox = REGION_RECTS(prgnDst);
 202         nbox = REGION_NUM_RECTS(prgnDst);
 203         if(!(pptSrc = (DDXPointPtr )ALLOCATE_LOCAL(nbox * sizeof(DDXPointRec))))
 204                 return;
 205         ppt = pptSrc;
 206
 207         for (i=nbox; --i >= 0; ppt++, pbox++) {
 208                 ppt->x = pbox->x1 + dx;
 209                 ppt->y = pbox->y1 + dy;
 210         }
 211
 212         afbDoBitblt((DrawablePtr)pwinRoot, (DrawablePtr)pwinRoot, GXcopy, prgnDst,
 213                                          pptSrc, ~0);
 214         DEALLOCATE_LOCAL(pptSrc);
 215         REGION_DESTROY(pWin->drawable.pScreen, prgnDst);
 216 }
 217
 218
 219
 220 /* swap in correct PaintWindow* routine.  If we can use a fast output
 221 routine (i.e. the pixmap is paddable to 32 bits), also pre-rotate a copy
 222 of it in devPrivate.
 223 */
 224 Bool
 225 afbChangeWindowAttributes(pWin, mask)
 226         register WindowPtr pWin;
 227         register unsigned long mask;
 228 {
 229         register unsigned long index;
 230         register afbPrivWin *pPrivWin;
 231         WindowPtr               pBgWin;
 232
 233         pPrivWin = (afbPrivWin *)(pWin->devPrivates[afbWindowPrivateIndex].ptr);
 234         /*
 235          * When background state changes from ParentRelative and
 236          * we had previously rotated the fast border pixmap to match
 237          * the parent relative origin, rerotate to match window
 238          */
 239         if (mask & (CWBackPixmap | CWBackPixel) &&
 240                  pWin->backgroundState != ParentRelative && pPrivWin->fastBorder &&
 241                  (pPrivWin->oldRotate.x != pWin->drawable.x ||
 242                   pPrivWin->oldRotate.y != pWin->drawable.y)) {
 243                 afbXRotatePixmap(pPrivWin->pRotatedBorder,
 244                                                                 pWin->drawable.x - pPrivWin->oldRotate.x);
 245                 afbYRotatePixmap(pPrivWin->pRotatedBorder,
 246                                                                 pWin->drawable.y - pPrivWin->oldRotate.y);
 247                 pPrivWin->oldRotate.x = pWin->drawable.x;
 248                 pPrivWin->oldRotate.y = pWin->drawable.y;
 249         }
 250         while(mask) {
 251                 index = lowbit (mask);
 252                 mask &= ~index;
 253                 switch(index) {
 254                         case CWBackPixmap:
 255                                 if (pWin->backgroundState == None)
 256                                         pPrivWin->fastBackground = FALSE;
 257                                 else if (pWin->backgroundState == ParentRelative) {
 258                                         pPrivWin->fastBackground = FALSE;
 259                                         /* Rotate border to match parent origin */
 260                                         if (pPrivWin->pRotatedBorder) {
 261                                                 for (pBgWin = pWin->parent;
 262                                                           pBgWin->backgroundState == ParentRelative;
 263                                                           pBgWin = pBgWin->parent);
 264                                                 afbXRotatePixmap(pPrivWin->pRotatedBorder,
 265                                                                                                 pBgWin->drawable.x - pPrivWin->oldRotate.x);
 266                                                 afbYRotatePixmap(pPrivWin->pRotatedBorder,
 267                                                                                                 pBgWin->drawable.y - pPrivWin->oldRotate.y);
 268                                                 pPrivWin->oldRotate.x = pBgWin->drawable.x;
 269                                                 pPrivWin->oldRotate.y = pBgWin->drawable.y;
 270                                         }
 271                                 } else if ((pWin->background.pixmap->drawable.width <= PPW) &&
 272                                                           !(pWin->background.pixmap->drawable.width &
 273                                                                  (pWin->background.pixmap->drawable.width - 1))) {
 274                                         afbCopyRotatePixmap(pWin->background.pixmap,
 275                                                                                                 &pPrivWin->pRotatedBackground,
 276                                                                                                 pWin->drawable.x, pWin->drawable.y);
 277                                         if (pPrivWin->pRotatedBackground) {
 278                                                 pPrivWin->fastBackground = TRUE;
 279                                                 pPrivWin->oldRotate.x = pWin->drawable.x;
 280                                                 pPrivWin->oldRotate.y = pWin->drawable.y;
 281                                         } else
 282                                                 pPrivWin->fastBackground = FALSE;
 283                                 } else
 284                                         pPrivWin->fastBackground = FALSE;
 285                                         break;
 286
 287                         case CWBackPixel:
 288                                 pPrivWin->fastBackground = FALSE;
 289                                 break;
 290
 291                         case CWBorderPixmap:
 292                                 if ((pWin->border.pixmap->drawable.width <= PPW) &&
 293                                          !(pWin->border.pixmap->drawable.width &
 294                                                 (pWin->border.pixmap->drawable.width - 1))) {
 295                                         for (pBgWin = pWin;
 296                                                   pBgWin->backgroundState == ParentRelative;
 297                                                   pBgWin = pBgWin->parent);
 298                                         afbCopyRotatePixmap(pWin->border.pixmap,
 299                                                                                                 &pPrivWin->pRotatedBorder,
 300                                                                                                 pBgWin->drawable.x, pBgWin->drawable.y);
 301                                         if (pPrivWin->pRotatedBorder) {
 302                                                 pPrivWin->fastBorder = TRUE;
 303                                                 pPrivWin->oldRotate.x = pBgWin->drawable.x;
 304                                                 pPrivWin->oldRotate.y = pBgWin->drawable.y;
 305                                         } else
 306                                                 pPrivWin->fastBorder = FALSE;
 307                                 } else
 308                                         pPrivWin->fastBorder = FALSE;
 309                                 break;
 310                         case CWBorderPixel:
 311                                 pPrivWin->fastBorder = FALSE;
 312                                 break;
 313                 }
 314         }
 315         /* Again, we have no failure modes indicated by any of the routines
 316          * we've called, so we have to assume it worked */
 317         return (TRUE);
 318 }