Screen-specific privates areas are only allocated for objects related to the target screen; objects allocated for other screens will not have the private space reserved. This saves memory in these objects while also allowing hot-plug screens to have additional private allocation space beyond what the core screens are using. Drivers are encouraged to switch to this mechanism as it will reduce memory usage in multi-GPU environments, but it is only required for drivers which will be loaded after the server starts, like modesetting. Objects providing screen-specific privates *must* be managed by the screen-specific private API when allocating or initializing privates so that the per-screen area can be initialized properly. The objects which support screen-specific privates are: Windows Pixmaps GCs Pictures Extending this list to include Colormaps would be possible, but require slightly more work as the default colormap is created before all colormap privates are allocated during server startup, and hence gets a bunch of special treatment. Of particular note, glyphs are *not* capable of supporting screen-specific privates as they are global objects, not allocated on a screen-specific basis, and so each driver must be able to see their privates within the glyph. Signed-off-by: Keith Packard <keithp@keithp.com> Reviewed-by: Dave Airlie <airlied@redhat.com>
363 lines
12 KiB
C
363 lines
12 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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/* The panoramix components contained the following notice */
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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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#include <version-config.h>
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#endif
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#include <X11/X.h>
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#include <X11/Xos.h> /* for unistd.h */
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#include <X11/Xproto.h>
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#include <pixman.h>
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#include "scrnintstr.h"
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#include "misc.h"
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#include "os.h"
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#include "windowstr.h"
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#include "resource.h"
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#include "dixstruct.h"
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#include "gcstruct.h"
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#include "extension.h"
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#include "colormap.h"
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#include "colormapst.h"
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#include "cursorstr.h"
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#include "selection.h"
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#include <X11/fonts/font.h>
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#include "opaque.h"
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#include "servermd.h"
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#include "hotplug.h"
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#include "site.h"
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#include "dixfont.h"
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#include "extnsionst.h"
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#include "privates.h"
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#include "registry.h"
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#include "client.h"
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#include "exevents.h"
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#ifdef PANORAMIX
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#include "panoramiXsrv.h"
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#else
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#include "dixevents.h" /* InitEvents() */
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#endif
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#ifdef DPMSExtension
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#include <X11/extensions/dpmsconst.h>
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#include "dpmsproc.h"
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#endif
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extern void Dispatch(void);
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#ifdef XQUARTZ
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#include <pthread.h>
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BOOL serverRunning = FALSE;
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pthread_mutex_t serverRunningMutex = PTHREAD_MUTEX_INITIALIZER;
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pthread_cond_t serverRunningCond = PTHREAD_COND_INITIALIZER;
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int dix_main(int argc, char *argv[], char *envp[]);
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int
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dix_main(int argc, char *argv[], char *envp[])
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#else
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int
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main(int argc, char *argv[], char *envp[])
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#endif
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{
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int i;
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HWEventQueueType alwaysCheckForInput[2];
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display = "0";
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InitRegions();
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CheckUserParameters(argc, argv, envp);
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CheckUserAuthorization();
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InitConnectionLimits();
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ProcessCommandLine(argc, argv);
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alwaysCheckForInput[0] = 0;
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alwaysCheckForInput[1] = 1;
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while (1) {
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serverGeneration++;
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ScreenSaverTime = defaultScreenSaverTime;
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ScreenSaverInterval = defaultScreenSaverInterval;
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ScreenSaverBlanking = defaultScreenSaverBlanking;
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ScreenSaverAllowExposures = defaultScreenSaverAllowExposures;
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#ifdef DPMSExtension
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DPMSStandbyTime = DPMSSuspendTime = DPMSOffTime = ScreenSaverTime;
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DPMSEnabled = TRUE;
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DPMSPowerLevel = 0;
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#endif
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InitBlockAndWakeupHandlers();
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/* Perform any operating system dependent initializations you'd like */
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OsInit();
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if (serverGeneration == 1) {
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CreateWellKnownSockets();
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for (i = 1; i < MAXCLIENTS; i++)
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clients[i] = NullClient;
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serverClient = calloc(sizeof(ClientRec), 1);
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if (!serverClient)
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FatalError("couldn't create server client");
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InitClient(serverClient, 0, (pointer) NULL);
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}
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else
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ResetWellKnownSockets();
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clients[0] = serverClient;
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currentMaxClients = 1;
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/* Initialize privates before first allocation */
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dixResetPrivates();
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/* Initialize server client devPrivates, to be reallocated as
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* more client privates are registered
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*/
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if (!dixAllocatePrivates(&serverClient->devPrivates, PRIVATE_CLIENT))
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FatalError("failed to create server client privates");
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if (!InitClientResources(serverClient)) /* for root resources */
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FatalError("couldn't init server resources");
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SetInputCheck(&alwaysCheckForInput[0], &alwaysCheckForInput[1]);
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screenInfo.numScreens = 0;
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InitAtoms();
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InitEvents();
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InitSelections();
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InitGlyphCaching();
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dixResetRegistry();
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ResetFontPrivateIndex();
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InitCallbackManager();
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InitOutput(&screenInfo, argc, argv);
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if (screenInfo.numScreens < 1)
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FatalError("no screens found");
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InitExtensions(argc, argv);
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for (i = 0; i < screenInfo.numScreens; i++) {
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ScreenPtr pScreen = screenInfo.screens[i];
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if (!CreateScratchPixmapsForScreen(pScreen))
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FatalError("failed to create scratch pixmaps");
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if (pScreen->CreateScreenResources &&
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!(*pScreen->CreateScreenResources) (pScreen))
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FatalError("failed to create screen resources");
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if (!CreateGCperDepth(i))
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FatalError("failed to create scratch GCs");
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if (!CreateDefaultStipple(i))
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FatalError("failed to create default stipple");
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if (!CreateRootWindow(pScreen))
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FatalError("failed to create root window");
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}
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InitFonts();
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if (SetDefaultFontPath(defaultFontPath) != Success) {
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ErrorF("[dix] failed to set default font path '%s'",
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defaultFontPath);
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}
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if (!SetDefaultFont(defaultTextFont)) {
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FatalError("could not open default font '%s'", defaultTextFont);
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}
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if (!(rootCursor = CreateRootCursor(NULL, 0))) {
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FatalError("could not open default cursor font '%s'",
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defaultCursorFont);
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}
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#ifdef DPMSExtension
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/* check all screens, looking for DPMS Capabilities */
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DPMSCapableFlag = DPMSSupported();
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if (!DPMSCapableFlag)
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DPMSEnabled = FALSE;
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#endif
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#ifdef PANORAMIX
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/*
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* Consolidate window and colourmap information for each screen
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*/
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if (!noPanoramiXExtension)
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PanoramiXConsolidate();
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#endif
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for (i = 0; i < screenInfo.numScreens; i++)
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InitRootWindow(screenInfo.screens[i]->root);
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InitCoreDevices();
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InitInput(argc, argv);
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InitAndStartDevices();
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ReserveClientIds(serverClient);
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dixSaveScreens(serverClient, SCREEN_SAVER_FORCER, ScreenSaverReset);
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#ifdef PANORAMIX
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if (!noPanoramiXExtension) {
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if (!PanoramiXCreateConnectionBlock()) {
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FatalError("could not create connection block info");
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}
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}
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else
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#endif
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{
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if (!CreateConnectionBlock()) {
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FatalError("could not create connection block info");
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}
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}
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#ifdef XQUARTZ
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/* Let the other threads know the server is done with its init */
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pthread_mutex_lock(&serverRunningMutex);
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serverRunning = TRUE;
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pthread_cond_broadcast(&serverRunningCond);
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pthread_mutex_unlock(&serverRunningMutex);
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#endif
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NotifyParentProcess();
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Dispatch();
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#ifdef XQUARTZ
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/* Let the other threads know the server is no longer running */
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pthread_mutex_lock(&serverRunningMutex);
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serverRunning = FALSE;
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pthread_mutex_unlock(&serverRunningMutex);
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#endif
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UndisplayDevices();
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DisableAllDevices();
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/* Now free up whatever must be freed */
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if (screenIsSaved == SCREEN_SAVER_ON)
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dixSaveScreens(serverClient, SCREEN_SAVER_OFF, ScreenSaverReset);
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FreeScreenSaverTimer();
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CloseDownExtensions();
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#ifdef PANORAMIX
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{
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Bool remember_it = noPanoramiXExtension;
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noPanoramiXExtension = TRUE;
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FreeAllResources();
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noPanoramiXExtension = remember_it;
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}
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#else
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FreeAllResources();
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#endif
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CloseInput();
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for (i = 0; i < screenInfo.numScreens; i++)
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screenInfo.screens[i]->root = NullWindow;
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CloseDownDevices();
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CloseDownEvents();
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for (i = screenInfo.numScreens - 1; i >= 0; i--) {
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FreeScratchPixmapsForScreen(screenInfo.screens[i]);
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FreeGCperDepth(i);
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FreeDefaultStipple(i);
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dixFreeScreenSpecificPrivates(screenInfo.screens[i]);
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(*screenInfo.screens[i]->CloseScreen) (screenInfo.screens[i]);
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dixFreePrivates(screenInfo.screens[i]->devPrivates, PRIVATE_SCREEN);
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free(screenInfo.screens[i]);
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screenInfo.numScreens = i;
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}
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ReleaseClientIds(serverClient);
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dixFreePrivates(serverClient->devPrivates, PRIVATE_CLIENT);
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serverClient->devPrivates = NULL;
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FreeFonts();
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FreeAuditTimer();
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if (dispatchException & DE_TERMINATE) {
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CloseWellKnownConnections();
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}
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OsCleanup((dispatchException & DE_TERMINATE) != 0);
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if (dispatchException & DE_TERMINATE) {
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ddxGiveUp(EXIT_NO_ERROR);
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break;
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}
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free(ConnectionInfo);
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ConnectionInfo = NULL;
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}
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return 0;
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}
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