X-Git-Url: https://git.sesse.net/?p=rdpsrv;a=blobdiff_plain;f=Xserver%2Fprograms%2FXserver%2Fmi%2Fmivaltree.c;fp=Xserver%2Fprograms%2FXserver%2Fmi%2Fmivaltree.c;h=0000000000000000000000000000000000000000;hp=0850230eb5a893ee848c475d8e89fb47fe88a1e8;hb=ce66b81460e5353db09d45c02339d4583fbda255;hpb=7772d71ffd742cfc9b7ff214659d16c5bb56a391 diff --git a/Xserver/programs/Xserver/mi/mivaltree.c b/Xserver/programs/Xserver/mi/mivaltree.c deleted file mode 100644 index 0850230..0000000 --- a/Xserver/programs/Xserver/mi/mivaltree.c +++ /dev/null @@ -1,730 +0,0 @@ -/* $XConsortium: mivaltree.c,v 5.33 94/04/17 20:27:58 dpw Exp $ */ -/* - * mivaltree.c -- - * Functions for recalculating window clip lists. Main function - * is miValidateTree. - * - -Copyright (c) 1987, 1988, 1989 X Consortium - -Permission is hereby granted, free of charge, to any person obtaining a copy -of this software and associated documentation files (the "Software"), to deal -in the Software without restriction, including without limitation the rights -to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -copies of the Software, and to permit persons to whom the Software is -furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in -all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN -AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN -CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - -Except as contained in this notice, the name of the X Consortium shall not be -used in advertising or otherwise to promote the sale, use or other dealings -in this Software without prior written authorization from the X Consortium. - - * - * Copyright 1987, 1988, 1989 by - * Digital Equipment Corporation, Maynard, Massachusetts, - * - * All Rights Reserved - * - * Permission to use, copy, modify, and distribute this software and its - * documentation for any purpose and without fee is hereby granted, - * provided that the above copyright notice appear in all copies and that - * both that copyright notice and this permission notice appear in - * supporting documentation, and that the name of Digital not be - * used in advertising or publicity pertaining to distribution of the - * software without specific, written prior permission. - * - * DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING - * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL - * DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR - * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, - * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, - * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - * - ******************************************************************/ - - /* - * Aug '86: Susan Angebranndt -- original code - * July '87: Adam de Boor -- substantially modified and commented - * Summer '89: Joel McCormack -- so fast you wouldn't believe it possible. - * In particular, much improved code for window mapping and - * circulating. - * Bob Scheifler -- avoid miComputeClips for unmapped windows, - * valdata changes - */ - -#include "X.h" -#include "scrnintstr.h" -#include "validate.h" -#include "windowstr.h" -#include "mi.h" -#include "regionstr.h" -#include "mivalidate.h" - -#ifdef SHAPE -/* - * Compute the visibility of a shaped window - */ -miShapedWindowIn (pScreen, universe, bounding, rect, x, y) - ScreenPtr pScreen; - RegionPtr universe, bounding; - BoxPtr rect; - register int x, y; -{ - BoxRec box; - register BoxPtr boundBox; - int nbox; - Bool someIn, someOut; - register int t, x1, y1, x2, y2; - - nbox = REGION_NUM_RECTS (bounding); - boundBox = REGION_RECTS (bounding); - someIn = someOut = FALSE; - x1 = rect->x1; - y1 = rect->y1; - x2 = rect->x2; - y2 = rect->y2; - while (nbox--) - { - if ((t = boundBox->x1 + x) < x1) - t = x1; - box.x1 = t; - if ((t = boundBox->y1 + y) < y1) - t = y1; - box.y1 = t; - if ((t = boundBox->x2 + x) > x2) - t = x2; - box.x2 = t; - if ((t = boundBox->y2 + y) > y2) - t = y2; - box.y2 = t; - if (box.x1 > box.x2) - box.x2 = box.x1; - if (box.y1 > box.y2) - box.y2 = box.y1; - switch (RECT_IN_REGION(pScreen, universe, &box)) - { - case rgnIN: - if (someOut) - return rgnPART; - someIn = TRUE; - break; - case rgnOUT: - if (someIn) - return rgnPART; - someOut = TRUE; - break; - default: - return rgnPART; - } - boundBox++; - } - if (someIn) - return rgnIN; - return rgnOUT; -} -#endif - -#define HasParentRelativeBorder(w) (!(w)->borderIsPixel && \ - HasBorder(w) && \ - (w)->backgroundState == ParentRelative) - -/*- - *----------------------------------------------------------------------- - * miComputeClips -- - * Recompute the clipList, borderClip, exposed and borderExposed - * regions for pParent and its children. Only viewable windows are - * taken into account. - * - * Results: - * None. - * - * Side Effects: - * clipList, borderClip, exposed and borderExposed are altered. - * A VisibilityNotify event may be generated on the parent window. - * - *----------------------------------------------------------------------- - */ - -static void -miComputeClips (pParent, pScreen, universe, kind, exposed) - register WindowPtr pParent; - register ScreenPtr pScreen; - register RegionPtr universe; - VTKind kind; - RegionPtr exposed; /* for intermediate calculations */ -{ - int dx, - dy; - RegionRec childUniverse; - register WindowPtr pChild; - int oldVis, newVis; - BoxRec borderSize; - RegionRec childUnion; - Bool overlap; - RegionPtr borderVisible; - Bool resized; - - /* - * Figure out the new visibility of this window. - * The extent of the universe should be the same as the extent of - * the borderSize region. If the window is unobscured, this rectangle - * will be completely inside the universe (the universe will cover it - * completely). If the window is completely obscured, none of the - * universe will cover the rectangle. - */ - - borderSize.x1 = pParent->drawable.x - wBorderWidth(pParent); - borderSize.y1 = pParent->drawable.y - wBorderWidth(pParent); - dx = (int) pParent->drawable.x + (int) pParent->drawable.width + wBorderWidth(pParent); - if (dx > 32767) - dx = 32767; - borderSize.x2 = dx; - dy = (int) pParent->drawable.y + (int) pParent->drawable.height + wBorderWidth(pParent); - if (dy > 32767) - dy = 32767; - borderSize.y2 = dy; - - oldVis = pParent->visibility; - switch (RECT_IN_REGION( pScreen, universe, &borderSize)) - { - case rgnIN: - newVis = VisibilityUnobscured; - break; - case rgnPART: - newVis = VisibilityPartiallyObscured; -#ifdef SHAPE - { - RegionPtr pBounding; - - if ((pBounding = wBoundingShape (pParent))) - { - switch (miShapedWindowIn (pScreen, universe, pBounding, - &borderSize, - pParent->drawable.x, - pParent->drawable.y)) - { - case rgnIN: - newVis = VisibilityUnobscured; - break; - case rgnOUT: - newVis = VisibilityFullyObscured; - break; - } - } - } -#endif - break; - default: - newVis = VisibilityFullyObscured; - break; - } - pParent->visibility = newVis; - if (oldVis != newVis && - ((pParent->eventMask | wOtherEventMasks(pParent)) & VisibilityChangeMask)) - SendVisibilityNotify(pParent); - - dx = pParent->drawable.x - pParent->valdata->before.oldAbsCorner.x; - dy = pParent->drawable.y - pParent->valdata->before.oldAbsCorner.y; - - /* - * avoid computations when dealing with simple operations - */ - - switch (kind) { - case VTMap: - case VTStack: - case VTUnmap: - break; - case VTMove: - if ((oldVis == newVis) && - ((oldVis == VisibilityFullyObscured) || - (oldVis == VisibilityUnobscured))) - { - pChild = pParent; - while (1) - { - if (pChild->viewable) - { - if (pChild->visibility != VisibilityFullyObscured) - { - REGION_TRANSLATE( pScreen, &pChild->borderClip, - dx, dy); - REGION_TRANSLATE( pScreen, &pChild->clipList, - dx, dy); - pChild->drawable.serialNumber = NEXT_SERIAL_NUMBER; - if (pScreen->ClipNotify) - (* pScreen->ClipNotify) (pChild, dx, dy); - - } - if (pChild->valdata) - { - REGION_INIT(pScreen, - &pChild->valdata->after.borderExposed, - NullBox, 0); - if (HasParentRelativeBorder(pChild)) - { - REGION_SUBTRACT(pScreen, - &pChild->valdata->after.borderExposed, - &pChild->borderClip, - &pChild->winSize); - } - REGION_INIT( pScreen, &pChild->valdata->after.exposed, - NullBox, 0); - } - if (pChild->firstChild) - { - pChild = pChild->firstChild; - continue; - } - } - while (!pChild->nextSib && (pChild != pParent)) - pChild = pChild->parent; - if (pChild == pParent) - break; - pChild = pChild->nextSib; - } - return; - } - /* fall through */ - default: - /* - * To calculate exposures correctly, we have to translate the old - * borderClip and clipList regions to the window's new location so there - * is a correspondence between pieces of the new and old clipping regions. - */ - if (dx || dy) - { - /* - * We translate the old clipList because that will be exposed or copied - * if gravity is right. - */ - REGION_TRANSLATE( pScreen, &pParent->borderClip, dx, dy); - REGION_TRANSLATE( pScreen, &pParent->clipList, dx, dy); - } - break; - } - - borderVisible = pParent->valdata->before.borderVisible; - resized = pParent->valdata->before.resized; - REGION_INIT( pScreen, &pParent->valdata->after.borderExposed, NullBox, 0); - REGION_INIT( pScreen, &pParent->valdata->after.exposed, NullBox, 0); - - /* - * Since the borderClip must not be clipped by the children, we do - * the border exposure first... - * - * 'universe' is the window's borderClip. To figure the exposures, remove - * the area that used to be exposed from the new. - * This leaves a region of pieces that weren't exposed before. - */ - - if (HasBorder (pParent)) - { - if (borderVisible) - { - /* - * when the border changes shape, the old visible portions - * of the border will be saved by DIX in borderVisible -- - * use that region and destroy it - */ - REGION_SUBTRACT( pScreen, exposed, universe, borderVisible); - REGION_DESTROY( pScreen, borderVisible); - } - else - { - REGION_SUBTRACT( pScreen, exposed, universe, &pParent->borderClip); - } - if (HasParentRelativeBorder(pParent) && (dx || dy)) - REGION_SUBTRACT( pScreen, &pParent->valdata->after.borderExposed, - universe, - &pParent->winSize); - else - REGION_SUBTRACT( pScreen, &pParent->valdata->after.borderExposed, - exposed, &pParent->winSize); - - REGION_COPY( pScreen, &pParent->borderClip, universe); - - /* - * To get the right clipList for the parent, and to make doubly sure - * that no child overlaps the parent's border, we remove the parent's - * border from the universe before proceeding. - */ - - REGION_INTERSECT( pScreen, universe, universe, &pParent->winSize); - } - else - REGION_COPY( pScreen, &pParent->borderClip, universe); - - if ((pChild = pParent->firstChild) && pParent->mapped) - { - REGION_INIT(pScreen, &childUniverse, NullBox, 0); - REGION_INIT(pScreen, &childUnion, NullBox, 0); - if ((pChild->drawable.y < pParent->lastChild->drawable.y) || - ((pChild->drawable.y == pParent->lastChild->drawable.y) && - (pChild->drawable.x < pParent->lastChild->drawable.x))) - { - for (; pChild; pChild = pChild->nextSib) - { - if (pChild->viewable) - REGION_APPEND( pScreen, &childUnion, &pChild->borderSize); - } - } - else - { - for (pChild = pParent->lastChild; pChild; pChild = pChild->prevSib) - { - if (pChild->viewable) - REGION_APPEND( pScreen, &childUnion, &pChild->borderSize); - } - } - REGION_VALIDATE( pScreen, &childUnion, &overlap); - - for (pChild = pParent->firstChild; - pChild; - pChild = pChild->nextSib) - { - if (pChild->viewable) { - /* - * If the child is viewable, we want to remove its extents - * from the current universe, but we only re-clip it if - * it's been marked. - */ - if (pChild->valdata) { - /* - * Figure out the new universe from the child's - * perspective and recurse. - */ - REGION_INTERSECT( pScreen, &childUniverse, - universe, - &pChild->borderSize); - miComputeClips (pChild, pScreen, &childUniverse, kind, - exposed); - } - /* - * Once the child has been processed, we remove its extents - * from the current universe, thus denying its space to any - * other sibling. - */ - if (overlap) - REGION_SUBTRACT( pScreen, universe, universe, - &pChild->borderSize); - } - } - if (!overlap) - REGION_SUBTRACT( pScreen, universe, universe, &childUnion); - REGION_UNINIT( pScreen, &childUnion); - REGION_UNINIT( pScreen, &childUniverse); - } /* if any children */ - - /* - * 'universe' now contains the new clipList for the parent window. - * - * To figure the exposure of the window we subtract the old clip from the - * new, just as for the border. - */ - - if (oldVis == VisibilityFullyObscured || - oldVis == VisibilityNotViewable) - { - REGION_COPY( pScreen, &pParent->valdata->after.exposed, universe); - } - else if (newVis != VisibilityFullyObscured && - newVis != VisibilityNotViewable) - { - REGION_SUBTRACT( pScreen, &pParent->valdata->after.exposed, - universe, &pParent->clipList); - } - - /* - * One last thing: backing storage. We have to try to save what parts of - * the window are about to be obscured. We can just subtract the universe - * from the old clipList and get the areas that were in the old but aren't - * in the new and, hence, are about to be obscured. - */ - if (pParent->backStorage && !resized) - { - REGION_SUBTRACT( pScreen, exposed, &pParent->clipList, universe); - (* pScreen->SaveDoomedAreas)(pParent, exposed, dx, dy); - } - - /* HACK ALERT - copying contents of regions, instead of regions */ - { - RegionRec tmp; - - tmp = pParent->clipList; - pParent->clipList = *universe; - *universe = tmp; - } - -#ifdef NOTDEF - REGION_COPY( pScreen, &pParent->clipList, universe); -#endif - - pParent->drawable.serialNumber = NEXT_SERIAL_NUMBER; - - if (pScreen->ClipNotify) - (* pScreen->ClipNotify) (pParent, dx, dy); -} - -static void -miTreeObscured(pParent) - register WindowPtr pParent; -{ - register WindowPtr pChild; - register int oldVis; - - pChild = pParent; - while (1) - { - if (pChild->viewable) - { - oldVis = pChild->visibility; - if (oldVis != (pChild->visibility = VisibilityFullyObscured) && - ((pChild->eventMask | wOtherEventMasks(pChild)) & VisibilityChangeMask)) - SendVisibilityNotify(pChild); - if (pChild->firstChild) - { - pChild = pChild->firstChild; - continue; - } - } - while (!pChild->nextSib && (pChild != pParent)) - pChild = pChild->parent; - if (pChild == pParent) - break; - pChild = pChild->nextSib; - } -} - -/*- - *----------------------------------------------------------------------- - * miValidateTree -- - * Recomputes the clip list for pParent and all its inferiors. - * - * Results: - * Always returns 1. - * - * Side Effects: - * The clipList, borderClip, exposed, and borderExposed regions for - * each marked window are altered. - * - * Notes: - * This routine assumes that all affected windows have been marked - * (valdata created) and their winSize and borderSize regions - * adjusted to correspond to their new positions. The borderClip and - * clipList regions should not have been touched. - * - * The top-most level is treated differently from all lower levels - * because pParent is unchanged. For the top level, we merge the - * regions taken up by the marked children back into the clipList - * for pParent, thus forming a region from which the marked children - * can claim their areas. For lower levels, where the old clipList - * and borderClip are invalid, we can't do this and have to do the - * extra operations done in miComputeClips, but this is much faster - * e.g. when only one child has moved... - * - *----------------------------------------------------------------------- - */ -/*ARGSUSED*/ -int -miValidateTree (pParent, pChild, kind) - WindowPtr pParent; /* Parent to validate */ - WindowPtr pChild; /* First child of pParent that was - * affected */ - VTKind kind; /* What kind of configuration caused call */ -{ - RegionRec totalClip; /* Total clipping region available to - * the marked children. pParent's clipList - * merged with the borderClips of all - * the marked children. */ - RegionRec childClip; /* The new borderClip for the current - * child */ - RegionRec childUnion; /* the space covered by borderSize for - * all marked children */ - RegionRec exposed; /* For intermediate calculations */ - register ScreenPtr pScreen; - register WindowPtr pWin; - Bool overlap; - int viewvals; - Bool forward; - - pScreen = pParent->drawable.pScreen; - if (pChild == NullWindow) - pChild = pParent->firstChild; - - REGION_INIT(pScreen, &childClip, NullBox, 0); - REGION_INIT(pScreen, &exposed, NullBox, 0); - - /* - * compute the area of the parent window occupied - * by the marked children + the parent itself. This - * is the area which can be divied up among the marked - * children in their new configuration. - */ - REGION_INIT(pScreen, &totalClip, NullBox, 0); - viewvals = 0; - if ((pChild->drawable.y < pParent->lastChild->drawable.y) || - ((pChild->drawable.y == pParent->lastChild->drawable.y) && - (pChild->drawable.x < pParent->lastChild->drawable.x))) - { - forward = TRUE; - for (pWin = pChild; pWin; pWin = pWin->nextSib) - { - if (pWin->valdata) - { - REGION_APPEND( pScreen, &totalClip, &pWin->borderClip); - if (pWin->viewable) - viewvals++; - } - } - } - else - { - forward = FALSE; - pWin = pParent->lastChild; - while (1) - { - if (pWin->valdata) - { - REGION_APPEND( pScreen, &totalClip, &pWin->borderClip); - if (pWin->viewable) - viewvals++; - } - if (pWin == pChild) - break; - pWin = pWin->prevSib; - } - } - REGION_VALIDATE( pScreen, &totalClip, &overlap); - - /* - * Now go through the children of the root and figure their new - * borderClips from the totalClip, passing that off to miComputeClips - * to handle recursively. Once that's done, we remove the child - * from the totalClip to clip any siblings below it. - */ - - overlap = TRUE; - if (kind != VTStack) - { - REGION_UNION( pScreen, &totalClip, &totalClip, &pParent->clipList); - if (viewvals > 1) - { - /* - * precompute childUnion to discover whether any of them - * overlap. This seems redundant, but performance studies - * have demonstrated that the cost of this loop is - * lower than the cost of multiple Subtracts in the - * loop below. - */ - REGION_INIT(pScreen, &childUnion, NullBox, 0); - if (forward) - { - for (pWin = pChild; pWin; pWin = pWin->nextSib) - if (pWin->valdata && pWin->viewable) - REGION_APPEND( pScreen, &childUnion, - &pWin->borderSize); - } - else - { - pWin = pParent->lastChild; - while (1) - { - if (pWin->valdata && pWin->viewable) - REGION_APPEND( pScreen, &childUnion, - &pWin->borderSize); - if (pWin == pChild) - break; - pWin = pWin->prevSib; - } - } - REGION_VALIDATE(pScreen, &childUnion, &overlap); - if (overlap) - REGION_UNINIT(pScreen, &childUnion); - } - } - - for (pWin = pChild; - pWin != NullWindow; - pWin = pWin->nextSib) - { - if (pWin->viewable) { - if (pWin->valdata) { - REGION_INTERSECT( pScreen, &childClip, - &totalClip, - &pWin->borderSize); - miComputeClips (pWin, pScreen, &childClip, kind, &exposed); - if (overlap) - { - REGION_SUBTRACT( pScreen, &totalClip, - &totalClip, - &pWin->borderSize); - } - } else if (pWin->visibility == VisibilityNotViewable) { - miTreeObscured(pWin); - } - } else { - if (pWin->valdata) { - REGION_EMPTY( pScreen, &pWin->clipList); - if (pScreen->ClipNotify) - (* pScreen->ClipNotify) (pWin, 0, 0); - REGION_EMPTY( pScreen, &pWin->borderClip); - pWin->valdata = (ValidatePtr)NULL; - } - } - } - - REGION_UNINIT( pScreen, &childClip); - if (!overlap) - { - REGION_SUBTRACT(pScreen, &totalClip, &totalClip, &childUnion); - REGION_UNINIT(pScreen, &childUnion); - } - - REGION_INIT( pScreen, &pParent->valdata->after.exposed, NullBox, 0); - REGION_INIT( pScreen, &pParent->valdata->after.borderExposed, NullBox, 0); - - /* - * each case below is responsible for updating the - * clipList and serial number for the parent window - */ - - switch (kind) { - case VTStack: - break; - default: - /* - * totalClip contains the new clipList for the parent. Figure out - * exposures and obscures as per miComputeClips and reset the parent's - * clipList. - */ - REGION_SUBTRACT( pScreen, &pParent->valdata->after.exposed, - &totalClip, &pParent->clipList); - /* fall through */ - case VTMap: - if (pParent->backStorage) { - REGION_SUBTRACT( pScreen, &exposed, &pParent->clipList, &totalClip); - (* pScreen->SaveDoomedAreas)(pParent, &exposed, 0, 0); - } - - REGION_COPY( pScreen, &pParent->clipList, &totalClip); - pParent->drawable.serialNumber = NEXT_SERIAL_NUMBER; - break; - } - - REGION_UNINIT( pScreen, &totalClip); - REGION_UNINIT( pScreen, &exposed); - if (pScreen->ClipNotify) - (*pScreen->ClipNotify) (pParent, 0, 0); - return (1); -}