695 lines
21 KiB
C
695 lines
21 KiB
C
/*
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* Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Copyright © 2003 Keith Packard
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of Keith Packard not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. Keith Packard makes no
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* representations about the suitability of this software for any purpose. It
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* is provided "as is" without express or implied warranty.
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*
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* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include "compint.h"
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static void
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compScreenUpdate(ScreenPtr pScreen)
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{
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compCheckTree(pScreen);
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compPaintChildrenToWindow(pScreen->root);
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}
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static void
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compBlockHandler(ScreenPtr pScreen, void *pTimeout, void *pReadmask)
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{
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CompScreenPtr cs = GetCompScreen(pScreen);
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pScreen->BlockHandler = cs->BlockHandler;
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compScreenUpdate(pScreen);
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(*pScreen->BlockHandler) (pScreen, pTimeout, pReadmask);
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/* Next damage will restore the block handler */
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cs->BlockHandler = NULL;
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}
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static void
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compReportDamage(DamagePtr pDamage, RegionPtr pRegion, void *closure)
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{
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WindowPtr pWin = (WindowPtr) closure;
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ScreenPtr pScreen = pWin->drawable.pScreen;
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CompScreenPtr cs = GetCompScreen(pScreen);
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CompWindowPtr cw = GetCompWindow(pWin);
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if (!cs->BlockHandler) {
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cs->BlockHandler = pScreen->BlockHandler;
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pScreen->BlockHandler = compBlockHandler;
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}
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cw->damaged = TRUE;
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/* Mark the ancestors */
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pWin = pWin->parent;
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while (pWin) {
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if (pWin->damagedDescendants)
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break;
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pWin->damagedDescendants = TRUE;
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pWin = pWin->parent;
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}
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}
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static void
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compDestroyDamage(DamagePtr pDamage, void *closure)
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{
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WindowPtr pWin = (WindowPtr) closure;
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CompWindowPtr cw = GetCompWindow(pWin);
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cw->damage = 0;
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}
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static Bool
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compMarkWindows(WindowPtr pWin, WindowPtr *ppLayerWin)
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{
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ScreenPtr pScreen = pWin->drawable.pScreen;
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WindowPtr pLayerWin = pWin;
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if (!pWin->viewable)
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return FALSE;
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(*pScreen->MarkOverlappedWindows) (pWin, pWin, &pLayerWin);
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(*pScreen->MarkWindow) (pLayerWin->parent);
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*ppLayerWin = pLayerWin;
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return TRUE;
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}
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static void
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compHandleMarkedWindows(WindowPtr pWin, WindowPtr pLayerWin)
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{
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ScreenPtr pScreen = pWin->drawable.pScreen;
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(*pScreen->ValidateTree) (pLayerWin->parent, pLayerWin, VTOther);
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(*pScreen->HandleExposures) (pLayerWin->parent);
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if (pScreen->PostValidateTree)
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(*pScreen->PostValidateTree) (pLayerWin->parent, pLayerWin, VTOther);
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}
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/*
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* Redirect one window for one client
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*/
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int
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compRedirectWindow(ClientPtr pClient, WindowPtr pWin, int update)
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{
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CompWindowPtr cw = GetCompWindow(pWin);
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CompClientWindowPtr ccw;
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CompScreenPtr cs = GetCompScreen(pWin->drawable.pScreen);
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WindowPtr pLayerWin;
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Bool anyMarked = FALSE;
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if (pWin == cs->pOverlayWin) {
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return Success;
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}
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if (!pWin->parent)
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return BadMatch;
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/*
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* Only one Manual update is allowed
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*/
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if (cw && update == CompositeRedirectManual)
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for (ccw = cw->clients; ccw; ccw = ccw->next)
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if (ccw->update == CompositeRedirectManual)
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return BadAccess;
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/*
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* Allocate per-client per-window structure
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* The client *could* allocate multiple, but while supported,
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* it is not expected to be common
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*/
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ccw = malloc(sizeof(CompClientWindowRec));
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if (!ccw)
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return BadAlloc;
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ccw->id = FakeClientID(pClient->index);
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ccw->update = update;
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/*
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* Now make sure there's a per-window structure to hang this from
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*/
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if (!cw) {
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cw = malloc(sizeof(CompWindowRec));
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if (!cw) {
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free(ccw);
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return BadAlloc;
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}
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cw->damage = DamageCreate(compReportDamage,
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compDestroyDamage,
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DamageReportNonEmpty,
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FALSE, pWin->drawable.pScreen, pWin);
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if (!cw->damage) {
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free(ccw);
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free(cw);
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return BadAlloc;
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}
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anyMarked = compMarkWindows(pWin, &pLayerWin);
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RegionNull(&cw->borderClip);
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cw->update = CompositeRedirectAutomatic;
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cw->clients = 0;
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cw->oldx = COMP_ORIGIN_INVALID;
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cw->oldy = COMP_ORIGIN_INVALID;
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cw->damageRegistered = FALSE;
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cw->damaged = FALSE;
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cw->pOldPixmap = NullPixmap;
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dixSetPrivate(&pWin->devPrivates, CompWindowPrivateKey, cw);
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}
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ccw->next = cw->clients;
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cw->clients = ccw;
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if (!AddResource(ccw->id, CompositeClientWindowType, pWin))
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return BadAlloc;
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if (ccw->update == CompositeRedirectManual) {
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if (!anyMarked)
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anyMarked = compMarkWindows(pWin, &pLayerWin);
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if (cw->damageRegistered) {
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DamageUnregister(cw->damage);
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cw->damageRegistered = FALSE;
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}
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cw->update = CompositeRedirectManual;
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}
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else if (cw->update == CompositeRedirectAutomatic && !cw->damageRegistered) {
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if (!anyMarked)
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anyMarked = compMarkWindows(pWin, &pLayerWin);
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}
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if (!compCheckRedirect(pWin)) {
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FreeResource(ccw->id, RT_NONE);
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return BadAlloc;
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}
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if (anyMarked)
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compHandleMarkedWindows(pWin, pLayerWin);
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return Success;
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}
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void
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compRestoreWindow(WindowPtr pWin, PixmapPtr pPixmap)
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{
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ScreenPtr pScreen = pWin->drawable.pScreen;
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WindowPtr pParent = pWin->parent;
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if (pParent->drawable.depth == pWin->drawable.depth) {
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GCPtr pGC = GetScratchGC(pWin->drawable.depth, pScreen);
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int bw = (int) pWin->borderWidth;
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int x = bw;
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int y = bw;
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int w = pWin->drawable.width;
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int h = pWin->drawable.height;
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if (pGC) {
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ChangeGCVal val;
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val.val = IncludeInferiors;
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ChangeGC(NullClient, pGC, GCSubwindowMode, &val);
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ValidateGC(&pWin->drawable, pGC);
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(*pGC->ops->CopyArea) (&pPixmap->drawable,
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&pWin->drawable, pGC, x, y, w, h, 0, 0);
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FreeScratchGC(pGC);
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}
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}
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}
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/*
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* Free one of the per-client per-window resources, clearing
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* redirect and the per-window pointer as appropriate
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*/
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void
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compFreeClientWindow(WindowPtr pWin, XID id)
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{
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ScreenPtr pScreen = pWin->drawable.pScreen;
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CompWindowPtr cw = GetCompWindow(pWin);
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CompClientWindowPtr ccw, *prev;
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Bool anyMarked = FALSE;
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WindowPtr pLayerWin;
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PixmapPtr pPixmap = NULL;
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if (!cw)
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return;
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for (prev = &cw->clients; (ccw = *prev); prev = &ccw->next) {
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if (ccw->id == id) {
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*prev = ccw->next;
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if (ccw->update == CompositeRedirectManual)
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cw->update = CompositeRedirectAutomatic;
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free(ccw);
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break;
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}
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}
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if (!cw->clients) {
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anyMarked = compMarkWindows(pWin, &pLayerWin);
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if (pWin->redirectDraw != RedirectDrawNone) {
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pPixmap = (*pScreen->GetWindowPixmap) (pWin);
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compSetParentPixmap(pWin);
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}
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if (cw->damage)
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DamageDestroy(cw->damage);
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RegionUninit(&cw->borderClip);
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dixSetPrivate(&pWin->devPrivates, CompWindowPrivateKey, NULL);
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free(cw);
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}
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else if (cw->update == CompositeRedirectAutomatic &&
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!cw->damageRegistered && pWin->redirectDraw != RedirectDrawNone) {
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anyMarked = compMarkWindows(pWin, &pLayerWin);
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DamageRegister(&pWin->drawable, cw->damage);
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cw->damageRegistered = TRUE;
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pWin->redirectDraw = RedirectDrawAutomatic;
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DamageDamageRegion(&pWin->drawable, &pWin->borderSize);
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}
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if (anyMarked)
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compHandleMarkedWindows(pWin, pLayerWin);
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if (pPixmap) {
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compRestoreWindow(pWin, pPixmap);
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(*pScreen->DestroyPixmap) (pPixmap);
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}
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}
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/*
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* This is easy, just free the appropriate resource.
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*/
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int
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compUnredirectWindow(ClientPtr pClient, WindowPtr pWin, int update)
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{
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CompWindowPtr cw = GetCompWindow(pWin);
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CompClientWindowPtr ccw;
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if (!cw)
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return BadValue;
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for (ccw = cw->clients; ccw; ccw = ccw->next)
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if (ccw->update == update && CLIENT_ID(ccw->id) == pClient->index) {
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FreeResource(ccw->id, RT_NONE);
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return Success;
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}
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return BadValue;
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}
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/*
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* Redirect all subwindows for one client
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*/
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int
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compRedirectSubwindows(ClientPtr pClient, WindowPtr pWin, int update)
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{
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CompSubwindowsPtr csw = GetCompSubwindows(pWin);
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CompClientWindowPtr ccw;
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WindowPtr pChild;
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/*
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* Only one Manual update is allowed
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*/
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if (csw && update == CompositeRedirectManual)
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for (ccw = csw->clients; ccw; ccw = ccw->next)
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if (ccw->update == CompositeRedirectManual)
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return BadAccess;
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/*
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* Allocate per-client per-window structure
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* The client *could* allocate multiple, but while supported,
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* it is not expected to be common
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*/
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ccw = malloc(sizeof(CompClientWindowRec));
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if (!ccw)
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return BadAlloc;
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ccw->id = FakeClientID(pClient->index);
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ccw->update = update;
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/*
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* Now make sure there's a per-window structure to hang this from
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*/
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if (!csw) {
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csw = malloc(sizeof(CompSubwindowsRec));
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if (!csw) {
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free(ccw);
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return BadAlloc;
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}
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csw->update = CompositeRedirectAutomatic;
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csw->clients = 0;
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dixSetPrivate(&pWin->devPrivates, CompSubwindowsPrivateKey, csw);
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}
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/*
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* Redirect all existing windows
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*/
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for (pChild = pWin->lastChild; pChild; pChild = pChild->prevSib) {
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int ret = compRedirectWindow(pClient, pChild, update);
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if (ret != Success) {
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for (pChild = pChild->nextSib; pChild; pChild = pChild->nextSib)
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(void) compUnredirectWindow(pClient, pChild, update);
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if (!csw->clients) {
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free(csw);
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dixSetPrivate(&pWin->devPrivates, CompSubwindowsPrivateKey, 0);
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}
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free(ccw);
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return ret;
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}
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}
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/*
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* Hook into subwindows list
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*/
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ccw->next = csw->clients;
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csw->clients = ccw;
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if (!AddResource(ccw->id, CompositeClientSubwindowsType, pWin))
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return BadAlloc;
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if (ccw->update == CompositeRedirectManual) {
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csw->update = CompositeRedirectManual;
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/*
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* tell damage extension that damage events for this client are
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* critical output
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*/
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DamageExtSetCritical(pClient, TRUE);
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pWin->inhibitBGPaint = TRUE;
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}
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return Success;
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}
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/*
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* Free one of the per-client per-subwindows resources,
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* which frees one redirect per subwindow
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*/
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void
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compFreeClientSubwindows(WindowPtr pWin, XID id)
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{
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CompSubwindowsPtr csw = GetCompSubwindows(pWin);
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CompClientWindowPtr ccw, *prev;
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WindowPtr pChild;
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if (!csw)
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return;
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for (prev = &csw->clients; (ccw = *prev); prev = &ccw->next) {
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if (ccw->id == id) {
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ClientPtr pClient = clients[CLIENT_ID(id)];
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*prev = ccw->next;
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if (ccw->update == CompositeRedirectManual) {
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/*
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* tell damage extension that damage events for this client are
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* critical output
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*/
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DamageExtSetCritical(pClient, FALSE);
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csw->update = CompositeRedirectAutomatic;
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pWin->inhibitBGPaint = FALSE;
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if (pWin->mapped)
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(*pWin->drawable.pScreen->ClearToBackground) (pWin, 0, 0, 0,
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0, TRUE);
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}
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/*
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* Unredirect all existing subwindows
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*/
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for (pChild = pWin->lastChild; pChild; pChild = pChild->prevSib)
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(void) compUnredirectWindow(pClient, pChild, ccw->update);
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free(ccw);
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break;
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}
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}
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/*
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* Check if all of the per-client records are gone
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*/
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if (!csw->clients) {
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dixSetPrivate(&pWin->devPrivates, CompSubwindowsPrivateKey, NULL);
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free(csw);
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}
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}
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/*
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* This is easy, just free the appropriate resource.
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*/
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int
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compUnredirectSubwindows(ClientPtr pClient, WindowPtr pWin, int update)
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{
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CompSubwindowsPtr csw = GetCompSubwindows(pWin);
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CompClientWindowPtr ccw;
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if (!csw)
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return BadValue;
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for (ccw = csw->clients; ccw; ccw = ccw->next)
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if (ccw->update == update && CLIENT_ID(ccw->id) == pClient->index) {
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FreeResource(ccw->id, RT_NONE);
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return Success;
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}
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return BadValue;
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}
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/*
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* Add redirection information for one subwindow (during reparent)
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*/
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int
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compRedirectOneSubwindow(WindowPtr pParent, WindowPtr pWin)
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{
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CompSubwindowsPtr csw = GetCompSubwindows(pParent);
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CompClientWindowPtr ccw;
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if (!csw)
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return Success;
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for (ccw = csw->clients; ccw; ccw = ccw->next) {
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int ret = compRedirectWindow(clients[CLIENT_ID(ccw->id)],
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pWin, ccw->update);
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if (ret != Success)
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return ret;
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}
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return Success;
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}
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/*
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* Remove redirection information for one subwindow (during reparent)
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*/
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int
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compUnredirectOneSubwindow(WindowPtr pParent, WindowPtr pWin)
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{
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CompSubwindowsPtr csw = GetCompSubwindows(pParent);
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CompClientWindowPtr ccw;
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if (!csw)
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return Success;
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for (ccw = csw->clients; ccw; ccw = ccw->next) {
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int ret = compUnredirectWindow(clients[CLIENT_ID(ccw->id)],
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pWin, ccw->update);
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if (ret != Success)
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return ret;
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}
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return Success;
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}
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static PixmapPtr
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compNewPixmap(WindowPtr pWin, int x, int y, int w, int h)
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{
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ScreenPtr pScreen = pWin->drawable.pScreen;
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WindowPtr pParent = pWin->parent;
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PixmapPtr pPixmap;
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pPixmap = (*pScreen->CreatePixmap) (pScreen, w, h, pWin->drawable.depth,
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CREATE_PIXMAP_USAGE_BACKING_PIXMAP);
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if (!pPixmap)
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return 0;
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|
pPixmap->screen_x = x;
|
|
pPixmap->screen_y = y;
|
|
|
|
if (pParent->drawable.depth == pWin->drawable.depth) {
|
|
GCPtr pGC = GetScratchGC(pWin->drawable.depth, pScreen);
|
|
|
|
if (pGC) {
|
|
ChangeGCVal val;
|
|
|
|
val.val = IncludeInferiors;
|
|
ChangeGC(NullClient, pGC, GCSubwindowMode, &val);
|
|
ValidateGC(&pPixmap->drawable, pGC);
|
|
(*pGC->ops->CopyArea) (&pParent->drawable,
|
|
&pPixmap->drawable,
|
|
pGC,
|
|
x - pParent->drawable.x,
|
|
y - pParent->drawable.y, w, h, 0, 0);
|
|
FreeScratchGC(pGC);
|
|
}
|
|
}
|
|
else {
|
|
PictFormatPtr pSrcFormat = PictureWindowFormat(pParent);
|
|
PictFormatPtr pDstFormat = PictureWindowFormat(pWin);
|
|
XID inferiors = IncludeInferiors;
|
|
int error;
|
|
|
|
PicturePtr pSrcPicture = CreatePicture(None,
|
|
&pParent->drawable,
|
|
pSrcFormat,
|
|
CPSubwindowMode,
|
|
&inferiors,
|
|
serverClient, &error);
|
|
|
|
PicturePtr pDstPicture = CreatePicture(None,
|
|
&pPixmap->drawable,
|
|
pDstFormat,
|
|
0, 0,
|
|
serverClient, &error);
|
|
|
|
if (pSrcPicture && pDstPicture) {
|
|
CompositePicture(PictOpSrc,
|
|
pSrcPicture,
|
|
NULL,
|
|
pDstPicture,
|
|
x - pParent->drawable.x,
|
|
y - pParent->drawable.y, 0, 0, 0, 0, w, h);
|
|
}
|
|
if (pSrcPicture)
|
|
FreePicture(pSrcPicture, 0);
|
|
if (pDstPicture)
|
|
FreePicture(pDstPicture, 0);
|
|
}
|
|
return pPixmap;
|
|
}
|
|
|
|
Bool
|
|
compAllocPixmap(WindowPtr pWin)
|
|
{
|
|
int bw = (int) pWin->borderWidth;
|
|
int x = pWin->drawable.x - bw;
|
|
int y = pWin->drawable.y - bw;
|
|
int w = pWin->drawable.width + (bw << 1);
|
|
int h = pWin->drawable.height + (bw << 1);
|
|
PixmapPtr pPixmap = compNewPixmap(pWin, x, y, w, h);
|
|
CompWindowPtr cw = GetCompWindow(pWin);
|
|
|
|
if (!pPixmap)
|
|
return FALSE;
|
|
if (cw->update == CompositeRedirectAutomatic)
|
|
pWin->redirectDraw = RedirectDrawAutomatic;
|
|
else
|
|
pWin->redirectDraw = RedirectDrawManual;
|
|
|
|
compSetPixmap(pWin, pPixmap);
|
|
cw->oldx = COMP_ORIGIN_INVALID;
|
|
cw->oldy = COMP_ORIGIN_INVALID;
|
|
cw->damageRegistered = FALSE;
|
|
if (cw->update == CompositeRedirectAutomatic) {
|
|
DamageRegister(&pWin->drawable, cw->damage);
|
|
cw->damageRegistered = TRUE;
|
|
}
|
|
|
|
/* Make sure our borderClip is up to date */
|
|
RegionUninit(&cw->borderClip);
|
|
RegionCopy(&cw->borderClip, &pWin->borderClip);
|
|
cw->borderClipX = pWin->drawable.x;
|
|
cw->borderClipY = pWin->drawable.y;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
void
|
|
compSetParentPixmap(WindowPtr pWin)
|
|
{
|
|
ScreenPtr pScreen = pWin->drawable.pScreen;
|
|
PixmapPtr pParentPixmap;
|
|
CompWindowPtr cw = GetCompWindow(pWin);
|
|
|
|
if (cw->damageRegistered) {
|
|
DamageUnregister(cw->damage);
|
|
cw->damageRegistered = FALSE;
|
|
DamageEmpty(cw->damage);
|
|
}
|
|
/*
|
|
* Move the parent-constrained border clip region back into
|
|
* the window so that ValidateTree will handle the unmap
|
|
* case correctly. Unmap adds the window borderClip to the
|
|
* parent exposed area; regions beyond the parent cause crashes
|
|
*/
|
|
RegionCopy(&pWin->borderClip, &cw->borderClip);
|
|
pParentPixmap = (*pScreen->GetWindowPixmap) (pWin->parent);
|
|
pWin->redirectDraw = RedirectDrawNone;
|
|
compSetPixmap(pWin, pParentPixmap);
|
|
}
|
|
|
|
/*
|
|
* Make sure the pixmap is the right size and offset. Allocate a new
|
|
* pixmap to change size, adjust origin to change offset, leaving the
|
|
* old pixmap in cw->pOldPixmap so bits can be recovered
|
|
*/
|
|
Bool
|
|
compReallocPixmap(WindowPtr pWin, int draw_x, int draw_y,
|
|
unsigned int w, unsigned int h, int bw)
|
|
{
|
|
ScreenPtr pScreen = pWin->drawable.pScreen;
|
|
PixmapPtr pOld = (*pScreen->GetWindowPixmap) (pWin);
|
|
PixmapPtr pNew;
|
|
CompWindowPtr cw = GetCompWindow(pWin);
|
|
int pix_x, pix_y;
|
|
int pix_w, pix_h;
|
|
|
|
assert(cw && pWin->redirectDraw != RedirectDrawNone);
|
|
cw->oldx = pOld->screen_x;
|
|
cw->oldy = pOld->screen_y;
|
|
pix_x = draw_x - bw;
|
|
pix_y = draw_y - bw;
|
|
pix_w = w + (bw << 1);
|
|
pix_h = h + (bw << 1);
|
|
if (pix_w != pOld->drawable.width || pix_h != pOld->drawable.height) {
|
|
pNew = compNewPixmap(pWin, pix_x, pix_y, pix_w, pix_h);
|
|
if (!pNew)
|
|
return FALSE;
|
|
cw->pOldPixmap = pOld;
|
|
compSetPixmap(pWin, pNew);
|
|
}
|
|
else {
|
|
pNew = pOld;
|
|
cw->pOldPixmap = 0;
|
|
}
|
|
pNew->screen_x = pix_x;
|
|
pNew->screen_y = pix_y;
|
|
return TRUE;
|
|
}
|