567 lines
18 KiB
C
567 lines
18 KiB
C
/***********************************************************
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Copyright 1987, 1998 The Open Group
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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.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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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 THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the name of Digital not be
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used in advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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SOFTWARE.
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******************************************************************/
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/*****************************************************************
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Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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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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DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING,
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BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL DAMAGES, OR OTHER LIABILITY,
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WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
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IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of Digital Equipment Corporation
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shall not be used in advertising or otherwise to promote the sale, use or other
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dealings in this Software without prior written authorization from Digital
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Equipment Corporation.
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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 <X11/X.h>
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#include <X11/Xproto.h>
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#include <X11/Xprotostr.h>
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#include "misc.h"
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#include "regionstr.h"
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#include "scrnintstr.h"
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#include "gcstruct.h"
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#include "windowstr.h"
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#include "pixmap.h"
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#include "input.h"
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#include "dixstruct.h"
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#include "mi.h"
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#include <X11/Xmd.h>
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#include "globals.h"
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#ifdef PANORAMIX
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#include "panoramiX.h"
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#include "panoramiXsrv.h"
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#endif
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/*
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machine-independent graphics exposure code. any device that uses
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the region package can call this.
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*/
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#ifndef RECTLIMIT
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#define RECTLIMIT 25 /* pick a number, any number > 8 */
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#endif
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/* miHandleExposures
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generate a region for exposures for areas that were copied from obscured or
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non-existent areas to non-obscured areas of the destination. Paint the
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background for the region, if the destination is a window.
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NOTE:
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this should generally be called, even if graphicsExposures is false,
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because this is where bits get recovered from backing store.
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*/
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RegionPtr
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miHandleExposures(DrawablePtr pSrcDrawable, DrawablePtr pDstDrawable,
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GCPtr pGC, int srcx, int srcy, int width, int height,
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int dstx, int dsty)
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{
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RegionPtr prgnSrcClip; /* drawable-relative source clip */
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RegionRec rgnSrcRec;
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RegionPtr prgnDstClip; /* drawable-relative dest clip */
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RegionRec rgnDstRec;
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BoxRec srcBox; /* unclipped source */
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RegionRec rgnExposed; /* exposed region, calculated source-
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relative, made dst relative to
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intersect with visible parts of
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dest and send events to client,
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and then screen relative to paint
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the window background
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*/
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WindowPtr pSrcWin;
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BoxRec expBox = { 0, };
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Bool extents;
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/* avoid work if we can */
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if (!pGC->graphicsExposures &&
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(pDstDrawable->type == DRAWABLE_PIXMAP) &&
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((pSrcDrawable->type == DRAWABLE_PIXMAP) ||
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(((WindowPtr) pSrcDrawable)->backStorage == 0)))
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return NULL;
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srcBox.x1 = srcx;
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srcBox.y1 = srcy;
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srcBox.x2 = srcx + width;
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srcBox.y2 = srcy + height;
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if (pSrcDrawable->type != DRAWABLE_PIXMAP) {
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BoxRec TsrcBox;
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TsrcBox.x1 = srcx + pSrcDrawable->x;
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TsrcBox.y1 = srcy + pSrcDrawable->y;
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TsrcBox.x2 = TsrcBox.x1 + width;
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TsrcBox.y2 = TsrcBox.y1 + height;
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pSrcWin = (WindowPtr) pSrcDrawable;
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if (pGC->subWindowMode == IncludeInferiors) {
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prgnSrcClip = NotClippedByChildren(pSrcWin);
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if ((RegionContainsRect(prgnSrcClip, &TsrcBox)) == rgnIN) {
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RegionDestroy(prgnSrcClip);
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return NULL;
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}
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}
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else {
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if ((RegionContainsRect(&pSrcWin->clipList, &TsrcBox)) == rgnIN)
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return NULL;
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prgnSrcClip = &rgnSrcRec;
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RegionNull(prgnSrcClip);
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RegionCopy(prgnSrcClip, &pSrcWin->clipList);
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}
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RegionTranslate(prgnSrcClip, -pSrcDrawable->x, -pSrcDrawable->y);
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}
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else {
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BoxRec box;
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if ((srcBox.x1 >= 0) && (srcBox.y1 >= 0) &&
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(srcBox.x2 <= pSrcDrawable->width) &&
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(srcBox.y2 <= pSrcDrawable->height))
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return NULL;
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box.x1 = 0;
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box.y1 = 0;
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box.x2 = pSrcDrawable->width;
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box.y2 = pSrcDrawable->height;
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prgnSrcClip = &rgnSrcRec;
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RegionInit(prgnSrcClip, &box, 1);
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pSrcWin = NULL;
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}
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if (pDstDrawable == pSrcDrawable) {
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prgnDstClip = prgnSrcClip;
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}
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else if (pDstDrawable->type != DRAWABLE_PIXMAP) {
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if (pGC->subWindowMode == IncludeInferiors) {
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prgnDstClip = NotClippedByChildren((WindowPtr) pDstDrawable);
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}
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else {
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prgnDstClip = &rgnDstRec;
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RegionNull(prgnDstClip);
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RegionCopy(prgnDstClip, &((WindowPtr) pDstDrawable)->clipList);
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}
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RegionTranslate(prgnDstClip, -pDstDrawable->x, -pDstDrawable->y);
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}
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else {
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BoxRec box;
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box.x1 = 0;
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box.y1 = 0;
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box.x2 = pDstDrawable->width;
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box.y2 = pDstDrawable->height;
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prgnDstClip = &rgnDstRec;
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RegionInit(prgnDstClip, &box, 1);
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}
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/* drawable-relative source region */
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RegionInit(&rgnExposed, &srcBox, 1);
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/* now get the hidden parts of the source box */
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RegionSubtract(&rgnExposed, &rgnExposed, prgnSrcClip);
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/* move them over the destination */
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RegionTranslate(&rgnExposed, dstx - srcx, dsty - srcy);
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/* intersect with visible areas of dest */
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RegionIntersect(&rgnExposed, &rgnExposed, prgnDstClip);
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/* intersect with client clip region. */
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if (pGC->clientClip)
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RegionIntersect(&rgnExposed, &rgnExposed, pGC->clientClip);
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/*
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* If we have LOTS of rectangles, we decide to take the extents
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* and force an exposure on that. This should require much less
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* work overall, on both client and server. This is cheating, but
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* isn't prohibited by the protocol ("spontaneous combustion" :-)
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* for windows.
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*/
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extents = pGC->graphicsExposures &&
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(RegionNumRects(&rgnExposed) > RECTLIMIT) &&
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(pDstDrawable->type != DRAWABLE_PIXMAP);
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if (pSrcWin) {
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RegionPtr region;
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if (!(region = wClipShape(pSrcWin)))
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region = wBoundingShape(pSrcWin);
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/*
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* If you try to CopyArea the extents of a shaped window, compacting the
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* exposed region will undo all our work!
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*/
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if (extents && pSrcWin && region &&
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(RegionContainsRect(region, &srcBox) != rgnIN))
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extents = FALSE;
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}
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if (extents) {
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expBox = *RegionExtents(&rgnExposed);
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RegionReset(&rgnExposed, &expBox);
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}
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if ((pDstDrawable->type != DRAWABLE_PIXMAP) &&
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(((WindowPtr) pDstDrawable)->backgroundState != None)) {
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WindowPtr pWin = (WindowPtr) pDstDrawable;
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/* make the exposed area screen-relative */
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RegionTranslate(&rgnExposed, pDstDrawable->x, pDstDrawable->y);
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if (extents) {
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/* PaintWindow doesn't clip, so we have to */
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RegionIntersect(&rgnExposed, &rgnExposed, &pWin->clipList);
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}
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pDstDrawable->pScreen->PaintWindow((WindowPtr) pDstDrawable,
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&rgnExposed, PW_BACKGROUND);
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if (extents) {
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RegionReset(&rgnExposed, &expBox);
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}
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else
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RegionTranslate(&rgnExposed, -pDstDrawable->x, -pDstDrawable->y);
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}
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if (prgnDstClip == &rgnDstRec) {
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RegionUninit(prgnDstClip);
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}
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else if (prgnDstClip != prgnSrcClip) {
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RegionDestroy(prgnDstClip);
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}
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if (prgnSrcClip == &rgnSrcRec) {
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RegionUninit(prgnSrcClip);
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}
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else {
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RegionDestroy(prgnSrcClip);
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}
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if (pGC->graphicsExposures) {
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/* don't look */
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RegionPtr exposed = RegionCreate(NullBox, 0);
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*exposed = rgnExposed;
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return exposed;
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}
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else {
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RegionUninit(&rgnExposed);
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return NULL;
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}
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}
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void
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miSendExposures(WindowPtr pWin, RegionPtr pRgn, int dx, int dy)
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{
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BoxPtr pBox;
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int numRects;
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xEvent *pEvent, *pe;
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int i;
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pBox = RegionRects(pRgn);
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numRects = RegionNumRects(pRgn);
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if (!(pEvent = calloc(1, numRects * sizeof(xEvent))))
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return;
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for (i = numRects, pe = pEvent; --i >= 0; pe++, pBox++) {
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pe->u.u.type = Expose;
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pe->u.expose.window = pWin->drawable.id;
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pe->u.expose.x = pBox->x1 - dx;
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pe->u.expose.y = pBox->y1 - dy;
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pe->u.expose.width = pBox->x2 - pBox->x1;
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pe->u.expose.height = pBox->y2 - pBox->y1;
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pe->u.expose.count = i;
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}
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#ifdef PANORAMIX
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if (!noPanoramiXExtension) {
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int scrnum = pWin->drawable.pScreen->myNum;
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int x = 0, y = 0;
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XID realWin = 0;
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if (!pWin->parent) {
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x = screenInfo.screens[scrnum]->x;
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y = screenInfo.screens[scrnum]->y;
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pWin = screenInfo.screens[0]->root;
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realWin = pWin->drawable.id;
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}
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else if (scrnum) {
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PanoramiXRes *win;
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win = PanoramiXFindIDByScrnum(XRT_WINDOW,
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pWin->drawable.id, scrnum);
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if (!win) {
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free(pEvent);
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return;
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}
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realWin = win->info[0].id;
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dixLookupWindow(&pWin, realWin, serverClient, DixSendAccess);
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}
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if (x || y || scrnum)
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for (i = 0; i < numRects; i++) {
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pEvent[i].u.expose.window = realWin;
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pEvent[i].u.expose.x += x;
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pEvent[i].u.expose.y += y;
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}
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}
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#endif
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DeliverEvents(pWin, pEvent, numRects, NullWindow);
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free(pEvent);
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}
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void
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miWindowExposures(WindowPtr pWin, RegionPtr prgn)
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{
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RegionPtr exposures = prgn;
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if (prgn && !RegionNil(prgn)) {
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RegionRec expRec;
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int clientInterested =
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(pWin->eventMask | wOtherEventMasks(pWin)) & ExposureMask;
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if (clientInterested && (RegionNumRects(prgn) > RECTLIMIT)) {
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/*
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* If we have LOTS of rectangles, we decide to take the extents
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* and force an exposure on that. This should require much less
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* work overall, on both client and server. This is cheating, but
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* isn't prohibited by the protocol ("spontaneous combustion" :-).
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*/
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BoxRec box = *RegionExtents(prgn);
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exposures = &expRec;
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RegionInit(exposures, &box, 1);
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RegionReset(prgn, &box);
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/* miPaintWindow doesn't clip, so we have to */
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RegionIntersect(prgn, prgn, &pWin->clipList);
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}
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pWin->drawable.pScreen->PaintWindow(pWin, prgn, PW_BACKGROUND);
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if (clientInterested)
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miSendExposures(pWin, exposures,
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pWin->drawable.x, pWin->drawable.y);
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if (exposures == &expRec)
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RegionUninit(exposures);
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RegionEmpty(prgn);
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}
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}
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void
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miPaintWindow(WindowPtr pWin, RegionPtr prgn, int what)
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{
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ScreenPtr pScreen = pWin->drawable.pScreen;
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ChangeGCVal gcval[6];
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BITS32 gcmask;
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GCPtr pGC;
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int i;
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BoxPtr pbox;
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xRectangle *prect;
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int numRects;
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/*
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* Distance from screen to destination drawable, use this
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* to adjust rendering coordinates which come in in screen space
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*/
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int draw_x_off, draw_y_off;
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/*
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* Tile offset for drawing; these need to align the tile
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* to the appropriate window origin
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*/
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int tile_x_off, tile_y_off;
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PixUnion fill;
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Bool solid = TRUE;
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DrawablePtr drawable = &pWin->drawable;
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if (what == PW_BACKGROUND) {
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while (pWin->backgroundState == ParentRelative)
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pWin = pWin->parent;
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draw_x_off = drawable->x;
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draw_y_off = drawable->y;
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tile_x_off = pWin->drawable.x - draw_x_off;
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tile_y_off = pWin->drawable.y - draw_y_off;
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fill = pWin->background;
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#ifdef COMPOSITE
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if (pWin->inhibitBGPaint)
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return;
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#endif
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switch (pWin->backgroundState) {
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case None:
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return;
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case BackgroundPixmap:
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solid = FALSE;
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break;
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}
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}
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else {
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PixmapPtr pixmap;
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fill = pWin->border;
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solid = pWin->borderIsPixel;
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/* servers without pixmaps draw their own borders */
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if (!pScreen->GetWindowPixmap)
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return;
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pixmap = (*pScreen->GetWindowPixmap) ((WindowPtr) drawable);
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drawable = &pixmap->drawable;
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while (pWin->backgroundState == ParentRelative)
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pWin = pWin->parent;
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tile_x_off = pWin->drawable.x;
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tile_y_off = pWin->drawable.y;
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#ifdef COMPOSITE
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draw_x_off = pixmap->screen_x;
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draw_y_off = pixmap->screen_y;
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tile_x_off -= draw_x_off;
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tile_y_off -= draw_y_off;
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#else
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draw_x_off = 0;
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draw_y_off = 0;
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#endif
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}
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gcval[0].val = GXcopy;
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gcmask = GCFunction;
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#ifdef ROOTLESS_SAFEALPHA
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/* Bit mask for alpha channel with a particular number of bits per
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* pixel. Note that we only care for 32bpp data. Mac OS X uses planar
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* alpha for 16bpp.
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*/
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#define RootlessAlphaMask(bpp) ((bpp) == 32 ? 0xFF000000 : 0)
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#endif
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if (solid) {
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#ifdef ROOTLESS_SAFEALPHA
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gcval[1].val =
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fill.pixel | RootlessAlphaMask(pWin->drawable.bitsPerPixel);
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#else
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gcval[1].val = fill.pixel;
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#endif
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gcval[2].val = FillSolid;
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gcmask |= GCForeground | GCFillStyle;
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}
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else {
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int c = 1;
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#ifdef ROOTLESS_SAFEALPHA
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gcval[c++].val =
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((CARD32) -1) & ~RootlessAlphaMask(pWin->drawable.bitsPerPixel);
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gcmask |= GCPlaneMask;
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#endif
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gcval[c++].val = FillTiled;
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gcval[c++].ptr = (void *) fill.pixmap;
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gcval[c++].val = tile_x_off;
|
|
gcval[c++].val = tile_y_off;
|
|
gcmask |= GCFillStyle | GCTile | GCTileStipXOrigin | GCTileStipYOrigin;
|
|
}
|
|
|
|
prect = xallocarray(RegionNumRects(prgn), sizeof(xRectangle));
|
|
if (!prect)
|
|
return;
|
|
|
|
pGC = GetScratchGC(drawable->depth, drawable->pScreen);
|
|
if (!pGC) {
|
|
free(prect);
|
|
return;
|
|
}
|
|
|
|
ChangeGC(NullClient, pGC, gcmask, gcval);
|
|
ValidateGC(drawable, pGC);
|
|
|
|
numRects = RegionNumRects(prgn);
|
|
pbox = RegionRects(prgn);
|
|
for (i = numRects; --i >= 0; pbox++, prect++) {
|
|
prect->x = pbox->x1 - draw_x_off;
|
|
prect->y = pbox->y1 - draw_y_off;
|
|
prect->width = pbox->x2 - pbox->x1;
|
|
prect->height = pbox->y2 - pbox->y1;
|
|
}
|
|
prect -= numRects;
|
|
(*pGC->ops->PolyFillRect) (drawable, pGC, numRects, prect);
|
|
free(prect);
|
|
|
|
FreeScratchGC(pGC);
|
|
}
|
|
|
|
/* MICLEARDRAWABLE -- sets the entire drawable to the background color of
|
|
* the GC. Useful when we have a scratch drawable and need to initialize
|
|
* it. */
|
|
void
|
|
miClearDrawable(DrawablePtr pDraw, GCPtr pGC)
|
|
{
|
|
ChangeGCVal fg, bg;
|
|
xRectangle rect;
|
|
|
|
fg.val = pGC->fgPixel;
|
|
bg.val = pGC->bgPixel;
|
|
rect.x = 0;
|
|
rect.y = 0;
|
|
rect.width = pDraw->width;
|
|
rect.height = pDraw->height;
|
|
ChangeGC(NullClient, pGC, GCForeground, &bg);
|
|
ValidateGC(pDraw, pGC);
|
|
(*pGC->ops->PolyFillRect) (pDraw, pGC, 1, &rect);
|
|
ChangeGC(NullClient, pGC, GCForeground, &fg);
|
|
ValidateGC(pDraw, pGC);
|
|
}
|