e4d11e58ce
This was an attempt to avoid scratch gc creation and validation for paintwin because that was expensive. This is not the case in current servers, and the danger of failure to implement it correctly (as seen in all previous implementations) is high enough to justify removing it. No performance difference detected with x11perf -create -move -resize -circulate on Xvfb. Leave the screen hooks for PaintWindow* in for now to avoid ABI change.
667 lines
19 KiB
C
667 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
|
|
* on select().
|
|
*/
|
|
static void
|
|
RootlessBlockHandler(pointer pbdata, OSTimePtr pTimeout, pointer pReadmask)
|
|
{
|
|
ScreenPtr pScreen = pbdata;
|
|
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(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?
|
|
|
|
#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;
|
|
}
|