670 lines
19 KiB
C
670 lines
19 KiB
C
/*
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* Screen routines for generic rootless X server
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*/
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/*
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* Copyright (c) 2001 Greg Parker. All Rights Reserved.
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* Copyright (c) 2002-2003 Torrey T. Lyons. All Rights Reserved.
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* Copyright (c) 2002 Apple Computer, Inc. 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 shall be included in
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* all copies or substantial portions of the 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 ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING 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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* Except as contained in this notice, the name(s) of the above copyright
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* holders shall not be used in advertising or otherwise to promote the sale,
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* use or other dealings in this Software without prior written authorization.
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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 "mi.h"
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#include "scrnintstr.h"
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#include "gcstruct.h"
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#include "pixmapstr.h"
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#include "windowstr.h"
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#include "propertyst.h"
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#include "mivalidate.h"
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#include "picturestr.h"
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <string.h>
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#include "rootlessCommon.h"
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#include "rootlessWindow.h"
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/* In milliseconds */
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#ifndef ROOTLESS_REDISPLAY_DELAY
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#define ROOTLESS_REDISPLAY_DELAY 10
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#endif
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extern int RootlessMiValidateTree(WindowPtr pRoot, WindowPtr pChild,
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VTKind kind);
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extern Bool RootlessCreateGC(GCPtr pGC);
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// Initialize globals
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int rootlessGCPrivateIndex = -1;
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int rootlessScreenPrivateIndex = -1;
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int rootlessWindowPrivateIndex = -1;
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/*
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* RootlessUpdateScreenPixmap
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* miCreateScreenResources does not like a null framebuffer pointer,
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* it leaves the screen pixmap with an uninitialized data pointer.
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* Thus, rootless implementations typically set the framebuffer width
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* to zero so that miCreateScreenResources does not allocate a screen
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* pixmap for us. We allocate our own screen pixmap here since we need
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* the screen pixmap to be valid (e.g. CopyArea from the root window).
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*/
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void
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RootlessUpdateScreenPixmap(ScreenPtr pScreen)
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{
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RootlessScreenRec *s = SCREENREC(pScreen);
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PixmapPtr pPix;
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unsigned int rowbytes;
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pPix = (*pScreen->GetScreenPixmap)(pScreen);
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if (pPix == NULL) {
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pPix = (*pScreen->CreatePixmap)(pScreen, 0, 0, pScreen->rootDepth);
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(*pScreen->SetScreenPixmap)(pPix);
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}
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rowbytes = PixmapBytePad(pScreen->width, pScreen->rootDepth);
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if (s->pixmap_data_size < rowbytes) {
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if (s->pixmap_data != NULL)
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xfree(s->pixmap_data);
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s->pixmap_data_size = rowbytes;
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s->pixmap_data = xalloc(s->pixmap_data_size);
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if (s->pixmap_data == NULL)
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return;
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memset(s->pixmap_data, 0xFF, s->pixmap_data_size);
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pScreen->ModifyPixmapHeader(pPix, pScreen->width, pScreen->height,
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pScreen->rootDepth,
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BitsPerPixel(pScreen->rootDepth),
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0, s->pixmap_data);
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/* ModifyPixmapHeader ignores zero arguments, so install rowbytes
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by hand. */
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pPix->devKind = 0;
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}
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}
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/*
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* RootlessCreateScreenResources
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* Rootless implementations typically set a null framebuffer pointer, which
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* causes problems with miCreateScreenResources. We fix things up here.
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*/
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static Bool
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RootlessCreateScreenResources(ScreenPtr pScreen)
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{
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Bool ret = TRUE;
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SCREEN_UNWRAP(pScreen, CreateScreenResources);
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if (pScreen->CreateScreenResources != NULL)
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ret = (*pScreen->CreateScreenResources)(pScreen);
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SCREEN_WRAP(pScreen, CreateScreenResources);
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if (!ret)
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return ret;
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/* Make sure we have a valid screen pixmap. */
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RootlessUpdateScreenPixmap(pScreen);
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return ret;
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}
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static Bool
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RootlessCloseScreen(int i, ScreenPtr pScreen)
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{
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RootlessScreenRec *s;
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s = SCREENREC(pScreen);
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// fixme unwrap everything that was wrapped?
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pScreen->CloseScreen = s->CloseScreen;
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if (s->pixmap_data != NULL) {
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xfree (s->pixmap_data);
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s->pixmap_data = NULL;
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s->pixmap_data_size = 0;
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}
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xfree(s);
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return pScreen->CloseScreen(i, pScreen);
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}
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static void
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RootlessGetImage(DrawablePtr pDrawable, int sx, int sy, int w, int h,
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unsigned int format, unsigned long planeMask, char *pdstLine)
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{
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ScreenPtr pScreen = pDrawable->pScreen;
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SCREEN_UNWRAP(pScreen, GetImage);
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if (pDrawable->type == DRAWABLE_WINDOW) {
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int x0, y0, x1, y1;
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RootlessWindowRec *winRec;
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// Many apps use GetImage to sync with the visible frame buffer
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// FIXME: entire screen or just window or all screens?
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RootlessRedisplayScreen(pScreen);
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// RedisplayScreen stops drawing, so we need to start it again
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RootlessStartDrawing((WindowPtr)pDrawable);
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/* Check that we have some place to read from. */
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winRec = WINREC(TopLevelParent((WindowPtr) pDrawable));
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if (winRec == NULL)
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goto out;
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/* Clip to top-level window bounds. */
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/* FIXME: fbGetImage uses the width parameter to calculate the
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stride of the destination pixmap. If w is clipped, the data
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returned will be garbage, although we will not crash. */
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x0 = pDrawable->x + sx;
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y0 = pDrawable->y + sy;
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x1 = x0 + w;
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y1 = y0 + h;
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x0 = MAX (x0, winRec->x);
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y0 = MAX (y0, winRec->y);
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x1 = MIN (x1, winRec->x + winRec->width);
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y1 = MIN (y1, winRec->y + winRec->height);
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sx = x0 - pDrawable->x;
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sy = y0 - pDrawable->y;
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w = x1 - x0;
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h = y1 - y0;
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if (w <= 0 || h <= 0)
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goto out;
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}
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pScreen->GetImage(pDrawable, sx, sy, w, h, format, planeMask, pdstLine);
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out:
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SCREEN_WRAP(pScreen, GetImage);
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}
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/*
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* RootlessSourceValidate
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* CopyArea and CopyPlane use a GC tied to the destination drawable.
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* StartDrawing/StopDrawing wrappers won't be called if source is
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* a visible window but the destination isn't. So, we call StartDrawing
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* here and leave StopDrawing for the block handler.
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*/
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static void
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RootlessSourceValidate(DrawablePtr pDrawable, int x, int y, int w, int h)
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{
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SCREEN_UNWRAP(pDrawable->pScreen, SourceValidate);
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if (pDrawable->type == DRAWABLE_WINDOW) {
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WindowPtr pWin = (WindowPtr)pDrawable;
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RootlessStartDrawing(pWin);
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}
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if (pDrawable->pScreen->SourceValidate) {
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pDrawable->pScreen->SourceValidate(pDrawable, x, y, w, h);
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}
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SCREEN_WRAP(pDrawable->pScreen, SourceValidate);
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}
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#ifdef RENDER
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static void
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RootlessComposite(CARD8 op, PicturePtr pSrc, PicturePtr pMask, PicturePtr pDst,
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INT16 xSrc, INT16 ySrc, INT16 xMask, INT16 yMask,
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INT16 xDst, INT16 yDst, CARD16 width, CARD16 height)
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{
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ScreenPtr pScreen = pDst->pDrawable->pScreen;
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PictureScreenPtr ps = GetPictureScreen(pScreen);
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WindowPtr srcWin, dstWin, maskWin = NULL;
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if (pMask) { // pMask can be NULL
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maskWin = (pMask->pDrawable->type == DRAWABLE_WINDOW) ?
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(WindowPtr)pMask->pDrawable : NULL;
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}
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srcWin = (pSrc->pDrawable->type == DRAWABLE_WINDOW) ?
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(WindowPtr)pSrc->pDrawable : NULL;
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dstWin = (pDst->pDrawable->type == DRAWABLE_WINDOW) ?
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(WindowPtr)pDst->pDrawable : NULL;
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// SCREEN_UNWRAP(ps, Composite);
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ps->Composite = SCREENREC(pScreen)->Composite;
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if (srcWin && IsFramedWindow(srcWin))
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RootlessStartDrawing(srcWin);
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if (maskWin && IsFramedWindow(maskWin))
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RootlessStartDrawing(maskWin);
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if (dstWin && IsFramedWindow(dstWin))
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RootlessStartDrawing(dstWin);
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ps->Composite(op, pSrc, pMask, pDst,
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xSrc, ySrc, xMask, yMask,
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xDst, yDst, width, height);
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if (dstWin && IsFramedWindow(dstWin)) {
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RootlessDamageRect(dstWin, xDst, yDst, width, height);
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}
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ps->Composite = RootlessComposite;
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// SCREEN_WRAP(ps, Composite);
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}
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static void
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RootlessGlyphs(CARD8 op, PicturePtr pSrc, PicturePtr pDst,
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PictFormatPtr maskFormat, INT16 xSrc, INT16 ySrc,
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int nlist, GlyphListPtr list, GlyphPtr *glyphs)
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{
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ScreenPtr pScreen = pDst->pDrawable->pScreen;
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PictureScreenPtr ps = GetPictureScreen(pScreen);
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int x, y;
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int n;
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GlyphPtr glyph;
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WindowPtr srcWin, dstWin;
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srcWin = (pSrc->pDrawable->type == DRAWABLE_WINDOW) ?
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(WindowPtr)pSrc->pDrawable : NULL;
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dstWin = (pDst->pDrawable->type == DRAWABLE_WINDOW) ?
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(WindowPtr)pDst->pDrawable : NULL;
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if (srcWin && IsFramedWindow(srcWin)) RootlessStartDrawing(srcWin);
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if (dstWin && IsFramedWindow(dstWin)) RootlessStartDrawing(dstWin);
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//SCREEN_UNWRAP(ps, Glyphs);
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ps->Glyphs = SCREENREC(pScreen)->Glyphs;
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ps->Glyphs(op, pSrc, pDst, maskFormat, xSrc, ySrc, nlist, list, glyphs);
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ps->Glyphs = RootlessGlyphs;
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//SCREEN_WRAP(ps, Glyphs);
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if (dstWin && IsFramedWindow(dstWin)) {
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x = xSrc;
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y = ySrc;
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while (nlist--) {
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x += list->xOff;
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y += list->yOff;
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n = list->len;
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/* Calling DamageRect for the bounding box of each glyph is
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inefficient. So compute the union of all glyphs in a list
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and damage that. */
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if (n > 0) {
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BoxRec box;
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glyph = *glyphs++;
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box.x1 = x - glyph->info.x;
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box.y1 = y - glyph->info.y;
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box.x2 = box.x1 + glyph->info.width;
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box.y2 = box.y2 + glyph->info.height;
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x += glyph->info.xOff;
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y += glyph->info.yOff;
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while (--n > 0) {
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short x1, y1, x2, y2;
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glyph = *glyphs++;
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x1 = x - glyph->info.x;
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y1 = y - glyph->info.y;
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x2 = x1 + glyph->info.width;
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y2 = y1 + glyph->info.height;
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box.x1 = MAX (box.x1, x1);
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box.y1 = MAX (box.y1, y1);
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box.x2 = MAX (box.x2, x2);
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box.y2 = MAX (box.y2, y2);
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x += glyph->info.xOff;
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y += glyph->info.yOff;
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}
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RootlessDamageBox(dstWin, &box);
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}
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list++;
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}
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}
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}
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#endif // RENDER
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/*
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* RootlessValidateTree
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* ValidateTree is modified in two ways:
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* - top-level windows don't clip each other
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* - windows aren't clipped against root.
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* These only matter when validating from the root.
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*/
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static int
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RootlessValidateTree(WindowPtr pParent, WindowPtr pChild, VTKind kind)
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{
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int result;
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RegionRec saveRoot;
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ScreenPtr pScreen = pParent->drawable.pScreen;
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SCREEN_UNWRAP(pScreen, ValidateTree);
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RL_DEBUG_MSG("VALIDATETREE start ");
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// Use our custom version to validate from root
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if (IsRoot(pParent)) {
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RL_DEBUG_MSG("custom ");
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result = RootlessMiValidateTree(pParent, pChild, kind);
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} else {
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HUGE_ROOT(pParent);
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result = pScreen->ValidateTree(pParent, pChild, kind);
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NORMAL_ROOT(pParent);
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}
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SCREEN_WRAP(pScreen, ValidateTree);
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RL_DEBUG_MSG("VALIDATETREE end\n");
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return result;
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}
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/*
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* RootlessMarkOverlappedWindows
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* MarkOverlappedWindows is modified to ignore overlapping
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* top-level windows.
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*/
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static Bool
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RootlessMarkOverlappedWindows(WindowPtr pWin, WindowPtr pFirst,
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WindowPtr *ppLayerWin)
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{
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RegionRec saveRoot;
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Bool result;
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ScreenPtr pScreen = pWin->drawable.pScreen;
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SCREEN_UNWRAP(pScreen, MarkOverlappedWindows);
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RL_DEBUG_MSG("MARKOVERLAPPEDWINDOWS start ");
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HUGE_ROOT(pWin);
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if (IsRoot(pWin)) {
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// root - mark nothing
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RL_DEBUG_MSG("is root not marking ");
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result = FALSE;
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}
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else if (! IsTopLevel(pWin)) {
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// not top-level window - mark normally
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result = pScreen->MarkOverlappedWindows(pWin, pFirst, ppLayerWin);
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}
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else {
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//top-level window - mark children ONLY - NO overlaps with sibs (?)
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// This code copied from miMarkOverlappedWindows()
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register WindowPtr pChild;
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Bool anyMarked = FALSE;
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void (* MarkWindow)() = pScreen->MarkWindow;
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RL_DEBUG_MSG("is top level! ");
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/* single layered systems are easy */
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if (ppLayerWin) *ppLayerWin = pWin;
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if (pWin == pFirst) {
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/* Blindly mark pWin and all of its inferiors. This is a slight
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* overkill if there are mapped windows that outside pWin's border,
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* but it's better than wasting time on RectIn checks.
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*/
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pChild = pWin;
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while (1) {
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if (pChild->viewable) {
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if (REGION_BROKEN (pScreen, &pChild->winSize))
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SetWinSize (pChild);
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if (REGION_BROKEN (pScreen, &pChild->borderSize))
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SetBorderSize (pChild);
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(* MarkWindow)(pChild);
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if (pChild->firstChild) {
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pChild = pChild->firstChild;
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continue;
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}
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}
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while (!pChild->nextSib && (pChild != pWin))
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pChild = pChild->parent;
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if (pChild == pWin)
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break;
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pChild = pChild->nextSib;
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}
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anyMarked = TRUE;
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pFirst = pFirst->nextSib;
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}
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if (anyMarked)
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(* MarkWindow)(pWin->parent);
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result = anyMarked;
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}
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NORMAL_ROOT(pWin);
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SCREEN_WRAP(pScreen, MarkOverlappedWindows);
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RL_DEBUG_MSG("MARKOVERLAPPEDWINDOWS end\n");
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return result;
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}
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static CARD32
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RootlessRedisplayCallback(OsTimerPtr timer, CARD32 time, void *arg)
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{
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RootlessScreenRec *screenRec = arg;
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if (!screenRec->redisplay_queued) {
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/* No update needed. Stop the timer. */
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screenRec->redisplay_timer_set = FALSE;
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return 0;
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}
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screenRec->redisplay_queued = FALSE;
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/* Mark that we should redisplay before waiting for I/O next time */
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screenRec->redisplay_expired = TRUE;
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/* Reinstall the timer immediately, so we get as close to our
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redisplay interval as possible. */
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return ROOTLESS_REDISPLAY_DELAY;
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}
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/*
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* RootlessQueueRedisplay
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* Queue a redisplay after a timer delay to ensure we do not redisplay
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* too frequently.
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*/
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void
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RootlessQueueRedisplay(ScreenPtr pScreen)
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{
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RootlessScreenRec *screenRec = SCREENREC(pScreen);
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screenRec->redisplay_queued = TRUE;
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if (screenRec->redisplay_timer_set)
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return;
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screenRec->redisplay_timer = TimerSet(screenRec->redisplay_timer,
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0, ROOTLESS_REDISPLAY_DELAY,
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RootlessRedisplayCallback,
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screenRec);
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screenRec->redisplay_timer_set = TRUE;
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}
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/*
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* RootlessBlockHandler
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* If the redisplay timer has expired, flush drawing before blocking
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* on select().
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*/
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static void
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RootlessBlockHandler(pointer pbdata, OSTimePtr pTimeout, pointer pReadmask)
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{
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ScreenPtr pScreen = pbdata;
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RootlessScreenRec *screenRec = SCREENREC(pScreen);
|
|
|
|
if (screenRec->redisplay_expired) {
|
|
screenRec->redisplay_expired = FALSE;
|
|
|
|
RootlessRedisplayScreen(pScreen);
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
RootlessWakeupHandler(pointer data, int i, pointer LastSelectMask)
|
|
{
|
|
// nothing here
|
|
}
|
|
|
|
|
|
static Bool
|
|
RootlessAllocatePrivates(ScreenPtr pScreen)
|
|
{
|
|
RootlessScreenRec *s;
|
|
static unsigned long rootlessGeneration = 0;
|
|
|
|
if (rootlessGeneration != serverGeneration) {
|
|
rootlessScreenPrivateIndex = AllocateScreenPrivateIndex();
|
|
if (rootlessScreenPrivateIndex == -1) return FALSE;
|
|
rootlessGCPrivateIndex = AllocateGCPrivateIndex();
|
|
if (rootlessGCPrivateIndex == -1) return FALSE;
|
|
rootlessWindowPrivateIndex = AllocateWindowPrivateIndex();
|
|
if (rootlessWindowPrivateIndex == -1) return FALSE;
|
|
rootlessGeneration = serverGeneration;
|
|
}
|
|
|
|
// no allocation needed for screen privates
|
|
if (!AllocateGCPrivate(pScreen, rootlessGCPrivateIndex,
|
|
sizeof(RootlessGCRec)))
|
|
return FALSE;
|
|
if (!AllocateWindowPrivate(pScreen, rootlessWindowPrivateIndex, 0))
|
|
return FALSE;
|
|
|
|
s = xalloc(sizeof(RootlessScreenRec));
|
|
if (! s) return FALSE;
|
|
SCREENREC(pScreen) = s;
|
|
|
|
s->pixmap_data = NULL;
|
|
s->pixmap_data_size = 0;
|
|
|
|
s->redisplay_timer = NULL;
|
|
s->redisplay_timer_set = FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
static void
|
|
RootlessWrap(ScreenPtr pScreen)
|
|
{
|
|
RootlessScreenRec *s = (RootlessScreenRec*)
|
|
pScreen->devPrivates[rootlessScreenPrivateIndex].ptr;
|
|
|
|
#define WRAP(a) \
|
|
if (pScreen->a) { \
|
|
s->a = pScreen->a; \
|
|
} else { \
|
|
RL_DEBUG_MSG("null screen fn " #a "\n"); \
|
|
s->a = NULL; \
|
|
} \
|
|
pScreen->a = Rootless##a
|
|
|
|
WRAP(CreateScreenResources);
|
|
WRAP(CloseScreen);
|
|
WRAP(CreateGC);
|
|
WRAP(PaintWindowBackground);
|
|
WRAP(PaintWindowBorder);
|
|
WRAP(CopyWindow);
|
|
WRAP(GetImage);
|
|
WRAP(SourceValidate);
|
|
WRAP(CreateWindow);
|
|
WRAP(DestroyWindow);
|
|
WRAP(RealizeWindow);
|
|
WRAP(UnrealizeWindow);
|
|
WRAP(MoveWindow);
|
|
WRAP(PositionWindow);
|
|
WRAP(ResizeWindow);
|
|
WRAP(RestackWindow);
|
|
WRAP(ReparentWindow);
|
|
WRAP(ChangeBorderWidth);
|
|
WRAP(MarkOverlappedWindows);
|
|
WRAP(ValidateTree);
|
|
WRAP(ChangeWindowAttributes);
|
|
|
|
#ifdef SHAPE
|
|
WRAP(SetShape);
|
|
#endif
|
|
|
|
#ifdef RENDER
|
|
{
|
|
// Composite and Glyphs don't use normal screen wrapping
|
|
PictureScreenPtr ps = GetPictureScreen(pScreen);
|
|
s->Composite = ps->Composite;
|
|
ps->Composite = RootlessComposite;
|
|
s->Glyphs = ps->Glyphs;
|
|
ps->Glyphs = RootlessGlyphs;
|
|
}
|
|
#endif
|
|
|
|
// WRAP(ClearToBackground); fixme put this back? useful for shaped wins?
|
|
// WRAP(RestoreAreas); fixme put this back?
|
|
|
|
#undef WRAP
|
|
}
|
|
|
|
|
|
/*
|
|
* RootlessInit
|
|
* Called by the rootless implementation to initialize the rootless layer.
|
|
* Rootless wraps lots of stuff and needs a bunch of devPrivates.
|
|
*/
|
|
Bool RootlessInit(ScreenPtr pScreen, RootlessFrameProcsPtr procs)
|
|
{
|
|
RootlessScreenRec *s;
|
|
|
|
if (!RootlessAllocatePrivates(pScreen))
|
|
return FALSE;
|
|
|
|
s = (RootlessScreenRec*)
|
|
pScreen->devPrivates[rootlessScreenPrivateIndex].ptr;
|
|
|
|
s->imp = procs;
|
|
|
|
RootlessWrap(pScreen);
|
|
|
|
if (!RegisterBlockAndWakeupHandlers(RootlessBlockHandler,
|
|
RootlessWakeupHandler,
|
|
(pointer) pScreen))
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|