diff options
Diffstat (limited to 'src/VBox/Additions/x11/VBoxClient/display-svga-x11.cpp')
| -rw-r--r-- | src/VBox/Additions/x11/VBoxClient/display-svga-x11.cpp | 1402 |
1 files changed, 1402 insertions, 0 deletions
diff --git a/src/VBox/Additions/x11/VBoxClient/display-svga-x11.cpp b/src/VBox/Additions/x11/VBoxClient/display-svga-x11.cpp new file mode 100644 index 00000000..90005ab1 --- /dev/null +++ b/src/VBox/Additions/x11/VBoxClient/display-svga-x11.cpp @@ -0,0 +1,1402 @@ +/* $Id: display-svga-x11.cpp $ */ +/** @file + * X11 guest client - VMSVGA emulation resize event pass-through to X.Org + * guest driver. + */ + +/* + * Copyright (C) 2017-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * SPDX-License-Identifier: GPL-3.0-only + */ + +/* + * Known things to test when changing this code. All assume a guest with VMSVGA + * active and controlled by X11 or Wayland, and Guest Additions installed and + * running, unless otherwise stated. + * - On Linux 4.6 and later guests, VBoxClient --vmsvga should be running as + * root and not as the logged-in user. Dynamic resizing should work for all + * screens in any environment which handles kernel resize notifications, + * including at log-in screens. Test GNOME Shell Wayland and GNOME Shell + * under X.Org or Unity or KDE at the log-in screen and after log-in. + * - Linux 4.10 changed the user-kernel-ABI introduced in 4.6: test both. + * - On other guests (than Linux 4.6 or later) running X.Org Server 1.3 or + * later, VBoxClient --vmsvga should never be running as root, and should run + * (and dynamic resizing and screen enable/disable should work for all + * screens) whenever a user is logged in to a supported desktop environment. + * - On guests running X.Org Server 1.2 or older, VBoxClient --vmsvga should + * never run as root and should run whenever a user is logged in to a + * supported desktop environment. Dynamic resizing should work for the first + * screen, and enabling others should not be possible. + * - When VMSVGA is not enabled, VBoxClient --vmsvga should never stay running. + * - The following assumptions are done and should be taken into account when reading/chaning the code: + * # The order of the outputs (monitors) is assumed to be the same in RANDROUTPUT array and + * XRRScreenResources.outputs array. + * - This code does 2 related but separate things: 1- It resizes and enables/disables monitors upon host's + * requests (see the infinite loop in run()). 2- it listens to RandR events (caused by this or any other X11 client) + * on a different thread and notifies host about the new monitor positions. See sendMonitorPositions(...). This is + * mainly a work around since we have realized that vmsvga does not convey correct monitor positions thru FIFO. + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include <stdio.h> +#include <dlfcn.h> +/** For sleep(..) */ +#include <unistd.h> +#include "VBoxClient.h" + +#include <VBox/VBoxGuestLib.h> + +#include <iprt/asm.h> +#include <iprt/assert.h> +#include <iprt/err.h> +#include <iprt/file.h> +#include <iprt/mem.h> +#include <iprt/path.h> +#include <iprt/string.h> +#include <iprt/thread.h> +#include <iprt/env.h> + +#include <X11/Xlibint.h> +#include <X11/extensions/Xrandr.h> +#include <X11/extensions/panoramiXproto.h> + +#include "display-svga-xf86cvt.h" + + +/********************************************************************************************************************************* +* Defined Constants And Macros * +*********************************************************************************************************************************/ +#define MILLIS_PER_INCH (25.4) +#define DEFAULT_DPI (96.0) + +/* Time in milliseconds to relax if no X11 events available. */ +#define VBOX_SVGA_X11_RELAX_TIME_MS (500) +/* Time in milliseconds to wait for host events. */ +#define VBOX_SVGA_HOST_EVENT_RX_TIMEOUT_MS (500) + +/** Maximum number of supported screens. DRM and X11 both limit this to 32. */ +/** @todo if this ever changes, dynamically allocate resizeable arrays in the + * context structure. */ +#define VMW_MAX_HEADS 32 + +#define checkFunctionPtrReturn(pFunction) \ + do { \ + if (pFunction) { } \ + else \ + { \ + VBClLogFatalError("Could not find symbol address (%s)\n", #pFunction); \ + dlclose(x11Context.pRandLibraryHandle); \ + x11Context.pRandLibraryHandle = NULL; \ + return VERR_NOT_FOUND; \ + } \ + } while (0) + +#define checkFunctionPtr(pFunction) \ + do { \ + if (pFunction) {} \ + else VBClLogError("Could not find symbol address (%s)\n", #pFunction);\ + } while (0) + + +/********************************************************************************************************************************* +* Structures and Typedefs * +*********************************************************************************************************************************/ +#define X_VMwareCtrlSetRes 1 + +typedef struct +{ + CARD8 reqType; + CARD8 VMwareCtrlReqType; + CARD16 length B16; + CARD32 screen B32; + CARD32 x B32; + CARD32 y B32; +} xVMwareCtrlSetResReq; +#define sz_xVMwareCtrlSetResReq 16 + +typedef struct +{ + BYTE type; + BYTE pad1; + CARD16 sequenceNumber B16; + CARD32 length B32; + CARD32 screen B32; + CARD32 x B32; + CARD32 y B32; + CARD32 pad2 B32; + CARD32 pad3 B32; + CARD32 pad4 B32; +} xVMwareCtrlSetResReply; +#define sz_xVMwareCtrlSetResReply 32 + +typedef struct { + CARD8 reqType; /* always X_VMwareCtrlReqCode */ + CARD8 VMwareCtrlReqType; /* always X_VMwareCtrlSetTopology */ + CARD16 length B16; + CARD32 screen B32; + CARD32 number B32; + CARD32 pad1 B32; +} xVMwareCtrlSetTopologyReq; +#define sz_xVMwareCtrlSetTopologyReq 16 + +#define X_VMwareCtrlSetTopology 2 + +typedef struct { + BYTE type; /* X_Reply */ + BYTE pad1; + CARD16 sequenceNumber B16; + CARD32 length B32; + CARD32 screen B32; + CARD32 pad2 B32; + CARD32 pad3 B32; + CARD32 pad4 B32; + CARD32 pad5 B32; + CARD32 pad6 B32; +} xVMwareCtrlSetTopologyReply; +#define sz_xVMwareCtrlSetTopologyReply 32 + +struct X11VMWRECT +{ + int16_t x; + int16_t y; + uint16_t w; + uint16_t h; +}; +AssertCompileSize(struct X11VMWRECT, 8); + +struct X11CONTEXT +{ + Display *pDisplay; + /* We use a separate connection for randr event listening since sharing a + single display object with resizing (main) and event listening threads ends up having a deadlock.*/ + Display *pDisplayRandRMonitoring; + Window rootWindow; + int iDefaultScreen; + XRRScreenResources *pScreenResources; + int hRandRMajor; + int hRandRMinor; + int hRandREventBase; + int hRandRErrorBase; + int hEventMask; + bool fMonitorInfoAvailable; + /** The number of outputs (monitors, including disconnect ones) xrandr reports. */ + int hOutputCount; + void *pRandLibraryHandle; + bool fWmwareCtrlExtention; + int hVMWCtrlMajorOpCode; + /** Function pointers we used if we dlopen libXrandr instead of linking. */ + void (*pXRRSelectInput) (Display *, Window, int); + Bool (*pXRRQueryExtension) (Display *, int *, int *); + Status (*pXRRQueryVersion) (Display *, int *, int*); + XRRMonitorInfo* (*pXRRGetMonitors)(Display *, Window, Bool, int *); + XRRScreenResources* (*pXRRGetScreenResources)(Display *, Window); + Status (*pXRRSetCrtcConfig)(Display *, XRRScreenResources *, RRCrtc, + Time, int, int, RRMode, Rotation, RROutput *, int); + void (*pXRRFreeMonitors)(XRRMonitorInfo *); + void (*pXRRFreeScreenResources)(XRRScreenResources *); + void (*pXRRFreeModeInfo)(XRRModeInfo *); + void (*pXRRFreeOutputInfo)(XRROutputInfo *); + void (*pXRRSetScreenSize)(Display *, Window, int, int, int, int); + int (*pXRRUpdateConfiguration)(XEvent *event); + XRRModeInfo* (*pXRRAllocModeInfo)(_Xconst char *, int); + RRMode (*pXRRCreateMode) (Display *, Window, XRRModeInfo *); + XRROutputInfo* (*pXRRGetOutputInfo) (Display *, XRRScreenResources *, RROutput); + XRRCrtcInfo* (*pXRRGetCrtcInfo) (Display *, XRRScreenResources *, RRCrtc crtc); + void (*pXRRFreeCrtcInfo)(XRRCrtcInfo *); + void (*pXRRAddOutputMode)(Display *, RROutput, RRMode); + void (*pXRRDeleteOutputMode)(Display *, RROutput, RRMode); + void (*pXRRDestroyMode)(Display *, RRMode); + void (*pXRRSetOutputPrimary)(Display *, Window, RROutput); +}; + +static X11CONTEXT x11Context; + +struct RANDROUTPUT +{ + int32_t x; + int32_t y; + uint32_t width; + uint32_t height; + bool fEnabled; + bool fPrimary; +}; + + +/********************************************************************************************************************************* +* Internal Functions * +*********************************************************************************************************************************/ +static void x11Connect(); +static int determineOutputCount(); + + +/********************************************************************************************************************************* +* Global Variables * +*********************************************************************************************************************************/ +/** Monitor positions array. Allocated here and deallocated in the class descructor. */ +RTPOINT *mpMonitorPositions; +/** Thread to listen to some of the X server events. */ +RTTHREAD mX11MonitorThread = NIL_RTTHREAD; +/** Shutdown indicator for the monitor thread. */ +static bool g_fMonitorThreadShutdown = false; + + + +#ifdef RT_OS_SOLARIS +static bool VMwareCtrlSetRes( + Display *dpy, int hExtensionMajorOpcode, int screen, int x, int y) +{ + xVMwareCtrlSetResReply rep; + xVMwareCtrlSetResReq *pReq; + bool fResult = false; + + LockDisplay(dpy); + + GetReq(VMwareCtrlSetRes, pReq); + AssertPtrReturn(pReq, false); + + pReq->reqType = hExtensionMajorOpcode; + pReq->VMwareCtrlReqType = X_VMwareCtrlSetRes; + pReq->screen = screen; + pReq->x = x; + pReq->y = y; + + fResult = !!_XReply(dpy, (xReply *)&rep, (SIZEOF(xVMwareCtrlSetResReply) - SIZEOF(xReply)) >> 2, xFalse); + + UnlockDisplay(dpy); + + return fResult; +} +#endif /* RT_OS_SOLARIS */ + +/** Makes a call to vmwarectrl extension. This updates the + * connection information and possible resolutions (modes) + * of each monitor on the driver. Also sets the preferred mode + * of each output (monitor) to currently selected one. */ +bool VMwareCtrlSetTopology(Display *dpy, int hExtensionMajorOpcode, + int screen, xXineramaScreenInfo extents[], int number) +{ + xVMwareCtrlSetTopologyReply rep; + xVMwareCtrlSetTopologyReq *req; + + long len; + + LockDisplay(dpy); + + GetReq(VMwareCtrlSetTopology, req); + req->reqType = hExtensionMajorOpcode; + req->VMwareCtrlReqType = X_VMwareCtrlSetTopology; + req->screen = screen; + req->number = number; + + len = ((long) number) << 1; + SetReqLen(req, len, len); + len <<= 2; + _XSend(dpy, (char *)extents, len); + + if (!_XReply(dpy, (xReply *)&rep, + (SIZEOF(xVMwareCtrlSetTopologyReply) - SIZEOF(xReply)) >> 2, + xFalse)) + { + UnlockDisplay(dpy); + SyncHandle(); + return false; + } + UnlockDisplay(dpy); + SyncHandle(); + return true; +} + +/** This function assumes monitors are named as from Virtual1 to VirtualX. */ +static int getMonitorIdFromName(const char *sMonitorName) +{ + if (!sMonitorName) + return -1; +#ifdef RT_OS_SOLARIS + if (!strcmp(sMonitorName, "default")) + return 1; +#endif + int iLen = strlen(sMonitorName); + if (iLen <= 0) + return -1; + int iBase = 10; + int iResult = 0; + for (int i = iLen - 1; i >= 0; --i) + { + /* Stop upon seeing the first non-numeric char. */ + if (sMonitorName[i] < 48 || sMonitorName[i] > 57) + break; + iResult += (sMonitorName[i] - 48) * iBase / 10; + iBase *= 10; + } + return iResult; +} + +static void sendMonitorPositions(RTPOINT *pPositions, size_t cPositions) +{ + if (cPositions && !pPositions) + { + VBClLogError(("Monitor position update called with NULL pointer!\n")); + return; + } + int rc = VbglR3SeamlessSendMonitorPositions(cPositions, pPositions); + if (RT_SUCCESS(rc)) + VBClLogInfo("Sending monitor positions (%u of them) to the host: %Rrc\n", cPositions, rc); + else + VBClLogError("Error during sending monitor positions (%u of them) to the host: %Rrc\n", cPositions, rc); +} + +static void queryMonitorPositions() +{ + static const int iSentinelPosition = -1; + if (mpMonitorPositions) + { + free(mpMonitorPositions); + mpMonitorPositions = NULL; + } + + int iMonitorCount = 0; + XRRMonitorInfo *pMonitorInfo = NULL; +#ifdef WITH_DISTRO_XRAND_XINERAMA + pMonitorInfo = XRRGetMonitors(x11Context.pDisplayRandRMonitoring, + DefaultRootWindow(x11Context.pDisplayRandRMonitoring), true, &iMonitorCount); +#else + if (x11Context.pXRRGetMonitors) + pMonitorInfo = x11Context.pXRRGetMonitors(x11Context.pDisplayRandRMonitoring, + DefaultRootWindow(x11Context.pDisplayRandRMonitoring), true, &iMonitorCount); +#endif + if (!pMonitorInfo) + return; + if (iMonitorCount == -1) + VBClLogError("Could not get monitor info\n"); + else + { + mpMonitorPositions = (RTPOINT*)malloc(x11Context.hOutputCount * sizeof(RTPOINT)); + /** @todo memset? */ + for (int i = 0; i < x11Context.hOutputCount; ++i) + { + mpMonitorPositions[i].x = iSentinelPosition; + mpMonitorPositions[i].y = iSentinelPosition; + } + for (int i = 0; i < iMonitorCount; ++i) + { + char *pszMonitorName = XGetAtomName(x11Context.pDisplayRandRMonitoring, pMonitorInfo[i].name); + if (!pszMonitorName) + { + VBClLogError("queryMonitorPositions: skip monitor with unknown name %d\n", i); + continue; + } + + int iMonitorID = getMonitorIdFromName(pszMonitorName) - 1; + XFree((void *)pszMonitorName); + pszMonitorName = NULL; + + if (iMonitorID >= x11Context.hOutputCount || iMonitorID == -1) + { + VBClLogInfo("queryMonitorPositions: skip monitor %d (id %d) (w,h)=(%d,%d) (x,y)=(%d,%d)\n", + i, iMonitorID, + pMonitorInfo[i].width, pMonitorInfo[i].height, + pMonitorInfo[i].x, pMonitorInfo[i].y); + continue; + } + VBClLogInfo("Monitor %d (w,h)=(%d,%d) (x,y)=(%d,%d)\n", + i, + pMonitorInfo[i].width, pMonitorInfo[i].height, + pMonitorInfo[i].x, pMonitorInfo[i].y); + mpMonitorPositions[iMonitorID].x = pMonitorInfo[i].x; + mpMonitorPositions[iMonitorID].y = pMonitorInfo[i].y; + } + if (iMonitorCount > 0) + sendMonitorPositions(mpMonitorPositions, x11Context.hOutputCount); + } +#ifdef WITH_DISTRO_XRAND_XINERAMA + XRRFreeMonitors(pMonitorInfo); +#else + if (x11Context.pXRRFreeMonitors) + x11Context.pXRRFreeMonitors(pMonitorInfo); +#endif +} + +static void monitorRandREvents() +{ + XEvent event; + + if (XPending(x11Context.pDisplayRandRMonitoring) > 0) + { + XNextEvent(x11Context.pDisplayRandRMonitoring, &event); + int eventTypeOffset = event.type - x11Context.hRandREventBase; + VBClLogInfo("received X11 event (%d)\n", event.type); + switch (eventTypeOffset) + { + case RRScreenChangeNotify: + VBClLogInfo("RRScreenChangeNotify event received\n"); + queryMonitorPositions(); + break; + default: + break; + } + } else + { + RTThreadSleep(VBOX_SVGA_X11_RELAX_TIME_MS); + } +} + +/** + * @callback_method_impl{FNRTTHREAD} + */ +static DECLCALLBACK(int) x11MonitorThreadFunction(RTTHREAD ThreadSelf, void *pvUser) +{ + RT_NOREF(ThreadSelf, pvUser); + while (!ASMAtomicReadBool(&g_fMonitorThreadShutdown)) + { + monitorRandREvents(); + } + + VBClLogInfo("X11 thread gracefully terminated\n"); + + return 0; +} + +static int startX11MonitorThread() +{ + int rc; + Assert(g_fMonitorThreadShutdown == false); + if (mX11MonitorThread == NIL_RTTHREAD) + { + rc = RTThreadCreate(&mX11MonitorThread, x11MonitorThreadFunction, NULL /*pvUser*/, 0 /*cbStack*/, + RTTHREADTYPE_MSG_PUMP, RTTHREADFLAGS_WAITABLE, "X11 events"); + if (RT_FAILURE(rc)) + VBClLogFatalError("Warning: failed to start X11 monitor thread (VBoxClient) rc=%Rrc!\n", rc); + } + else + rc = VINF_ALREADY_INITIALIZED; + return rc; +} + +static int stopX11MonitorThread(void) +{ + int rc = VINF_SUCCESS; + if (mX11MonitorThread != NIL_RTTHREAD) + { + ASMAtomicWriteBool(&g_fMonitorThreadShutdown, true); + /** @todo Send event to thread to get it out of XNextEvent. */ + //???????? + //mX11Monitor.interruptEventWait(); + rc = RTThreadWait(mX11MonitorThread, RT_MS_1SEC, NULL /*prc*/); + if (RT_SUCCESS(rc)) + { + mX11MonitorThread = NIL_RTTHREAD; + g_fMonitorThreadShutdown = false; + } + else + VBClLogError("Failed to stop X11 monitor thread, rc=%Rrc!\n", rc); + } + return rc; +} + +static bool callVMWCTRL(struct RANDROUTPUT *paOutputs) +{ + int hHeight = 600; + int hWidth = 800; + bool fResult = false; + int idxDefaultScreen = DefaultScreen(x11Context.pDisplay); + + AssertReturn(idxDefaultScreen >= 0, false); + AssertReturn(idxDefaultScreen < x11Context.hOutputCount, false); + + xXineramaScreenInfo *extents = (xXineramaScreenInfo *)malloc(x11Context.hOutputCount * sizeof(xXineramaScreenInfo)); + if (!extents) + return false; + int hRunningOffset = 0; + for (int i = 0; i < x11Context.hOutputCount; ++i) + { + if (paOutputs[i].fEnabled) + { + hHeight = paOutputs[i].height; + hWidth = paOutputs[i].width; + } + else + { + hHeight = 0; + hWidth = 0; + } + extents[i].x_org = hRunningOffset; + extents[i].y_org = 0; + extents[i].width = hWidth; + extents[i].height = hHeight; + hRunningOffset += hWidth; + } +#ifdef RT_OS_SOLARIS + fResult = VMwareCtrlSetRes(x11Context.pDisplay, x11Context.hVMWCtrlMajorOpCode, + idxDefaultScreen, extents[idxDefaultScreen].width, + extents[idxDefaultScreen].height); +#else + fResult = VMwareCtrlSetTopology(x11Context.pDisplay, x11Context.hVMWCtrlMajorOpCode, + idxDefaultScreen, extents, x11Context.hOutputCount); +#endif + free(extents); + return fResult; +} + +/** + * @interface_method_impl{VBCLSERVICE,pfnInit} + */ +static DECLCALLBACK(int) vbclSVGAInit(void) +{ + int rc; + + /* In 32-bit guests GAs build on our release machines causes an xserver hang. + * So for 32-bit GAs we use our DRM client. */ +#if ARCH_BITS == 32 + rc = VbglR3DrmClientStart(); + if (RT_FAILURE(rc)) + VBClLogError("Starting DRM resizing client (32-bit) failed with %Rrc\n", rc); + return VERR_NOT_AVAILABLE; /** @todo r=andy Why ignoring rc here? */ +#endif + + /* If DRM client is already running don't start this service. */ + if (VbglR3DrmClientIsRunning()) + { + VBClLogInfo("DRM resizing is already running. Exiting this service\n"); + return VERR_NOT_AVAILABLE; + } + + if (VBClHasWayland()) + { + rc = VbglR3DrmClientStart(); + if (RT_SUCCESS(rc)) + { + VBClLogInfo("VBoxDrmClient has been successfully started, exitting parent process\n"); + exit(0); + } + else + { + VBClLogError("Starting DRM resizing client failed with %Rrc\n", rc); + } + return rc; + } + + x11Connect(); + + if (x11Context.pDisplay == NULL) + return VERR_NOT_AVAILABLE; + + /* don't start the monitoring thread if related randr functionality is not available. */ + if (x11Context.fMonitorInfoAvailable) + { + if (RT_FAILURE(startX11MonitorThread())) + return VERR_NOT_AVAILABLE; + } + + return VINF_SUCCESS; +} + +/** + * @interface_method_impl{VBCLSERVICE,pfnStop} + */ +static DECLCALLBACK(void) vbclSVGAStop(void) +{ + int rc; + + rc = stopX11MonitorThread(); + if (RT_FAILURE(rc)) + { + VBClLogError("cannot stop X11 monitor thread (%Rrc)\n", rc); + return; + } + + if (mpMonitorPositions) + { + free(mpMonitorPositions); + mpMonitorPositions = NULL; + } + + if (x11Context.pDisplayRandRMonitoring) + { +#ifdef WITH_DISTRO_XRAND_XINERAMA + XRRSelectInput(x11Context.pDisplayRandRMonitoring, x11Context.rootWindow, 0); +#else + if (x11Context.pXRRSelectInput) + x11Context.pXRRSelectInput(x11Context.pDisplayRandRMonitoring, x11Context.rootWindow, 0); +#endif + } + + if (x11Context.pDisplay) + { + XCloseDisplay(x11Context.pDisplay); + x11Context.pDisplay = NULL; + } + + if (x11Context.pDisplayRandRMonitoring) + { + XCloseDisplay(x11Context.pDisplayRandRMonitoring); + x11Context.pDisplayRandRMonitoring = NULL; + } + + if (x11Context.pRandLibraryHandle) + { + dlclose(x11Context.pRandLibraryHandle); + x11Context.pRandLibraryHandle = NULL; + } +} + +#ifndef WITH_DISTRO_XRAND_XINERAMA +static int openLibRandR() +{ + x11Context.pRandLibraryHandle = dlopen("libXrandr.so", RTLD_LAZY /*| RTLD_LOCAL */); + if (!x11Context.pRandLibraryHandle) + x11Context.pRandLibraryHandle = dlopen("libXrandr.so.2", RTLD_LAZY /*| RTLD_LOCAL */); + if (!x11Context.pRandLibraryHandle) + x11Context.pRandLibraryHandle = dlopen("libXrandr.so.2.2.0", RTLD_LAZY /*| RTLD_LOCAL */); + + if (!x11Context.pRandLibraryHandle) + { + VBClLogFatalError("Could not locate libXrandr for dlopen\n"); + return VERR_NOT_FOUND; + } + + *(void **)(&x11Context.pXRRSelectInput) = dlsym(x11Context.pRandLibraryHandle, "XRRSelectInput"); + checkFunctionPtrReturn(x11Context.pXRRSelectInput); + + *(void **)(&x11Context.pXRRQueryExtension) = dlsym(x11Context.pRandLibraryHandle, "XRRQueryExtension"); + checkFunctionPtrReturn(x11Context.pXRRQueryExtension); + + *(void **)(&x11Context.pXRRQueryVersion) = dlsym(x11Context.pRandLibraryHandle, "XRRQueryVersion"); + checkFunctionPtrReturn(x11Context.pXRRQueryVersion); + + /* Don't bail out when XRRGetMonitors XRRFreeMonitors are missing as in Oracle Solaris 10. It is not crucial esp. for single monitor. */ + *(void **)(&x11Context.pXRRGetMonitors) = dlsym(x11Context.pRandLibraryHandle, "XRRGetMonitors"); + checkFunctionPtr(x11Context.pXRRGetMonitors); + + *(void **)(&x11Context.pXRRFreeMonitors) = dlsym(x11Context.pRandLibraryHandle, "XRRFreeMonitors"); + checkFunctionPtr(x11Context.pXRRFreeMonitors); + + x11Context.fMonitorInfoAvailable = x11Context.pXRRGetMonitors && x11Context.pXRRFreeMonitors; + + *(void **)(&x11Context.pXRRGetScreenResources) = dlsym(x11Context.pRandLibraryHandle, "XRRGetScreenResources"); + checkFunctionPtr(x11Context.pXRRGetScreenResources); + + *(void **)(&x11Context.pXRRSetCrtcConfig) = dlsym(x11Context.pRandLibraryHandle, "XRRSetCrtcConfig"); + checkFunctionPtr(x11Context.pXRRSetCrtcConfig); + + *(void **)(&x11Context.pXRRFreeScreenResources) = dlsym(x11Context.pRandLibraryHandle, "XRRFreeScreenResources"); + checkFunctionPtr(x11Context.pXRRFreeScreenResources); + + *(void **)(&x11Context.pXRRFreeModeInfo) = dlsym(x11Context.pRandLibraryHandle, "XRRFreeModeInfo"); + checkFunctionPtr(x11Context.pXRRFreeModeInfo); + + *(void **)(&x11Context.pXRRFreeOutputInfo) = dlsym(x11Context.pRandLibraryHandle, "XRRFreeOutputInfo"); + checkFunctionPtr(x11Context.pXRRFreeOutputInfo); + + *(void **)(&x11Context.pXRRSetScreenSize) = dlsym(x11Context.pRandLibraryHandle, "XRRSetScreenSize"); + checkFunctionPtr(x11Context.pXRRSetScreenSize); + + *(void **)(&x11Context.pXRRUpdateConfiguration) = dlsym(x11Context.pRandLibraryHandle, "XRRUpdateConfiguration"); + checkFunctionPtr(x11Context.pXRRUpdateConfiguration); + + *(void **)(&x11Context.pXRRAllocModeInfo) = dlsym(x11Context.pRandLibraryHandle, "XRRAllocModeInfo"); + checkFunctionPtr(x11Context.pXRRAllocModeInfo); + + *(void **)(&x11Context.pXRRCreateMode) = dlsym(x11Context.pRandLibraryHandle, "XRRCreateMode"); + checkFunctionPtr(x11Context.pXRRCreateMode); + + *(void **)(&x11Context.pXRRGetOutputInfo) = dlsym(x11Context.pRandLibraryHandle, "XRRGetOutputInfo"); + checkFunctionPtr(x11Context.pXRRGetOutputInfo); + + *(void **)(&x11Context.pXRRGetCrtcInfo) = dlsym(x11Context.pRandLibraryHandle, "XRRGetCrtcInfo"); + checkFunctionPtr(x11Context.pXRRGetCrtcInfo); + + *(void **)(&x11Context.pXRRFreeCrtcInfo) = dlsym(x11Context.pRandLibraryHandle, "XRRFreeCrtcInfo"); + checkFunctionPtr(x11Context.pXRRFreeCrtcInfo); + + *(void **)(&x11Context.pXRRAddOutputMode) = dlsym(x11Context.pRandLibraryHandle, "XRRAddOutputMode"); + checkFunctionPtr(x11Context.pXRRAddOutputMode); + + *(void **)(&x11Context.pXRRDeleteOutputMode) = dlsym(x11Context.pRandLibraryHandle, "XRRDeleteOutputMode"); + checkFunctionPtr(x11Context.pXRRDeleteOutputMode); + + *(void **)(&x11Context.pXRRDestroyMode) = dlsym(x11Context.pRandLibraryHandle, "XRRDestroyMode"); + checkFunctionPtr(x11Context.pXRRDestroyMode); + + *(void **)(&x11Context.pXRRSetOutputPrimary) = dlsym(x11Context.pRandLibraryHandle, "XRRSetOutputPrimary"); + checkFunctionPtr(x11Context.pXRRSetOutputPrimary); + + return VINF_SUCCESS; +} +#endif + +static void x11Connect() +{ + x11Context.pScreenResources = NULL; + x11Context.pXRRSelectInput = NULL; + x11Context.pRandLibraryHandle = NULL; + x11Context.pXRRQueryExtension = NULL; + x11Context.pXRRQueryVersion = NULL; + x11Context.pXRRGetMonitors = NULL; + x11Context.pXRRGetScreenResources = NULL; + x11Context.pXRRSetCrtcConfig = NULL; + x11Context.pXRRFreeMonitors = NULL; + x11Context.pXRRFreeScreenResources = NULL; + x11Context.pXRRFreeOutputInfo = NULL; + x11Context.pXRRFreeModeInfo = NULL; + x11Context.pXRRSetScreenSize = NULL; + x11Context.pXRRUpdateConfiguration = NULL; + x11Context.pXRRAllocModeInfo = NULL; + x11Context.pXRRCreateMode = NULL; + x11Context.pXRRGetOutputInfo = NULL; + x11Context.pXRRGetCrtcInfo = NULL; + x11Context.pXRRFreeCrtcInfo = NULL; + x11Context.pXRRAddOutputMode = NULL; + x11Context.pXRRDeleteOutputMode = NULL; + x11Context.pXRRDestroyMode = NULL; + x11Context.pXRRSetOutputPrimary = NULL; + x11Context.fWmwareCtrlExtention = false; + x11Context.fMonitorInfoAvailable = false; + x11Context.hRandRMajor = 0; + x11Context.hRandRMinor = 0; + + int dummy; + if (x11Context.pDisplay != NULL) + VBClLogFatalError("%s called with bad argument\n", __func__); + x11Context.pDisplay = XOpenDisplay(NULL); + x11Context.pDisplayRandRMonitoring = XOpenDisplay(NULL); + if (x11Context.pDisplay == NULL) + return; +#ifndef WITH_DISTRO_XRAND_XINERAMA + if (openLibRandR() != VINF_SUCCESS) + { + XCloseDisplay(x11Context.pDisplay); + XCloseDisplay(x11Context.pDisplayRandRMonitoring); + x11Context.pDisplay = NULL; + x11Context.pDisplayRandRMonitoring = NULL; + return; + } +#endif + + x11Context.fWmwareCtrlExtention = XQueryExtension(x11Context.pDisplay, "VMWARE_CTRL", + &x11Context.hVMWCtrlMajorOpCode, &dummy, &dummy); + if (!x11Context.fWmwareCtrlExtention) + VBClLogError("VMWARE's ctrl extension is not available! Multi monitor management is not possible\n"); + else + VBClLogInfo("VMWARE's ctrl extension is available. Major Opcode is %d.\n", x11Context.hVMWCtrlMajorOpCode); + + /* Check Xrandr stuff. */ + bool fSuccess = false; +#ifdef WITH_DISTRO_XRAND_XINERAMA + fSuccess = XRRQueryExtension(x11Context.pDisplay, &x11Context.hRandREventBase, &x11Context.hRandRErrorBase); +#else + if (x11Context.pXRRQueryExtension) + fSuccess = x11Context.pXRRQueryExtension(x11Context.pDisplay, &x11Context.hRandREventBase, &x11Context.hRandRErrorBase); +#endif + if (fSuccess) + { + fSuccess = false; +#ifdef WITH_DISTRO_XRAND_XINERAMA + fSuccess = XRRQueryVersion(x11Context.pDisplay, &x11Context.hRandRMajor, &x11Context.hRandRMinor); +#else + if (x11Context.pXRRQueryVersion) + fSuccess = x11Context.pXRRQueryVersion(x11Context.pDisplay, &x11Context.hRandRMajor, &x11Context.hRandRMinor); +#endif + if (!fSuccess) + { + XCloseDisplay(x11Context.pDisplay); + x11Context.pDisplay = NULL; + return; + } + if (x11Context.hRandRMajor < 1 || x11Context.hRandRMinor <= 3) + { + VBClLogError("Resizing service requires libXrandr Version >= 1.4. Detected version is %d.%d\n", x11Context.hRandRMajor, x11Context.hRandRMinor); + XCloseDisplay(x11Context.pDisplay); + x11Context.pDisplay = NULL; + + int rc = VbglR3DrmLegacyX11AgentStart(); + VBClLogInfo("Attempt to start legacy X11 resize agent, rc=%Rrc\n", rc); + + return; + } + } + x11Context.rootWindow = DefaultRootWindow(x11Context.pDisplay); + x11Context.hEventMask = RRScreenChangeNotifyMask; + + /* Select the XEvent types we want to listen to. */ +#ifdef WITH_DISTRO_XRAND_XINERAMA + XRRSelectInput(x11Context.pDisplayRandRMonitoring, x11Context.rootWindow, x11Context.hEventMask); +#else + if (x11Context.pXRRSelectInput) + x11Context.pXRRSelectInput(x11Context.pDisplayRandRMonitoring, x11Context.rootWindow, x11Context.hEventMask); +#endif + x11Context.iDefaultScreen = DefaultScreen(x11Context.pDisplay); + +#ifdef WITH_DISTRO_XRAND_XINERAMA + x11Context.pScreenResources = XRRGetScreenResources(x11Context.pDisplay, x11Context.rootWindow); +#else + if (x11Context.pXRRGetScreenResources) + x11Context.pScreenResources = x11Context.pXRRGetScreenResources(x11Context.pDisplay, x11Context.rootWindow); +#endif + x11Context.hOutputCount = RT_VALID_PTR(x11Context.pScreenResources) ? determineOutputCount() : 0; +#ifdef WITH_DISTRO_XRAND_XINERAMA + XRRFreeScreenResources(x11Context.pScreenResources); +#else + if (x11Context.pXRRFreeScreenResources) + x11Context.pXRRFreeScreenResources(x11Context.pScreenResources); +#endif +} + +static int determineOutputCount() +{ + if (!x11Context.pScreenResources) + return 0; + return x11Context.pScreenResources->noutput; +} + +static int findExistingModeIndex(unsigned iXRes, unsigned iYRes) +{ + if (!x11Context.pScreenResources) + return -1; + for (int i = 0; i < x11Context.pScreenResources->nmode; ++i) + { + if (x11Context.pScreenResources->modes[i].width == iXRes && x11Context.pScreenResources->modes[i].height == iYRes) + return i; + } + return -1; +} + +static bool disableCRTC(RRCrtc crtcID) +{ + XRRCrtcInfo *pCrctInfo = NULL; + +#ifdef WITH_DISTRO_XRAND_XINERAMA + pCrctInfo = XRRGetCrtcInfo(x11Context.pDisplay, x11Context.pScreenResources, crtcID); +#else + if (x11Context.pXRRGetCrtcInfo) + pCrctInfo = x11Context.pXRRGetCrtcInfo(x11Context.pDisplay, x11Context.pScreenResources, crtcID); +#endif + + if (!pCrctInfo) + return false; + + Status ret = Success; +#ifdef WITH_DISTRO_XRAND_XINERAMA + ret = XRRSetCrtcConfig(x11Context.pDisplay, x11Context.pScreenResources, crtcID, + CurrentTime, 0, 0, None, RR_Rotate_0, NULL, 0); +#else + if (x11Context.pXRRSetCrtcConfig) + ret = x11Context.pXRRSetCrtcConfig(x11Context.pDisplay, x11Context.pScreenResources, crtcID, + CurrentTime, 0, 0, None, RR_Rotate_0, NULL, 0); +#endif + +#ifdef WITH_DISTRO_XRAND_XINERAMA + XRRFreeCrtcInfo(pCrctInfo); +#else + if (x11Context.pXRRFreeCrtcInfo) + x11Context.pXRRFreeCrtcInfo(pCrctInfo); +#endif + + /** @todo In case of unsuccesful crtc config set we have to revert frame buffer size and crtc sizes. */ + if (ret == Success) + return true; + else + return false; +} + +static XRRScreenSize currentSize() +{ + XRRScreenSize cSize; + cSize.width = DisplayWidth(x11Context.pDisplay, x11Context.iDefaultScreen); + cSize.mwidth = DisplayWidthMM(x11Context.pDisplay, x11Context.iDefaultScreen); + cSize.height = DisplayHeight(x11Context.pDisplay, x11Context.iDefaultScreen); + cSize.mheight = DisplayHeightMM(x11Context.pDisplay, x11Context.iDefaultScreen); + return cSize; +} + +static unsigned int computeDpi(unsigned int pixels, unsigned int mm) +{ + unsigned int dpi = 0; + if (mm > 0) + dpi = (unsigned int)((double)pixels * MILLIS_PER_INCH / (double)mm + 0.5); + return dpi > 0 ? dpi : (unsigned int)DEFAULT_DPI; +} + +static bool resizeFrameBuffer(struct RANDROUTPUT *paOutputs) +{ + unsigned int iXRes = 0; + unsigned int iYRes = 0; + /* Don't care about the output positions for now. */ + for (int i = 0; i < x11Context.hOutputCount; ++i) + { + if (!paOutputs[i].fEnabled) + continue; + iXRes += paOutputs[i].width; + iYRes = iYRes < paOutputs[i].height ? paOutputs[i].height : iYRes; + } + XRRScreenSize cSize= currentSize(); + unsigned int xdpi = computeDpi(cSize.width, cSize.mwidth); + unsigned int ydpi = computeDpi(cSize.height, cSize.mheight); + unsigned int xmm; + unsigned int ymm; + xmm = (int)(MILLIS_PER_INCH * iXRes / ((double)xdpi) + 0.5); + ymm = (int)(MILLIS_PER_INCH * iYRes / ((double)ydpi) + 0.5); +#ifdef WITH_DISTRO_XRAND_XINERAMA + XRRSelectInput(x11Context.pDisplay, x11Context.rootWindow, RRScreenChangeNotifyMask); + XRRSetScreenSize(x11Context.pDisplay, x11Context.rootWindow, iXRes, iYRes, xmm, ymm); +#else + if (x11Context.pXRRSelectInput) + x11Context.pXRRSelectInput(x11Context.pDisplay, x11Context.rootWindow, RRScreenChangeNotifyMask); + if (x11Context.pXRRSetScreenSize) + x11Context.pXRRSetScreenSize(x11Context.pDisplay, x11Context.rootWindow, iXRes, iYRes, xmm, ymm); +#endif + XSync(x11Context.pDisplay, False); + XEvent configEvent; + bool event = false; + while (XCheckTypedEvent(x11Context.pDisplay, RRScreenChangeNotify + x11Context.hRandREventBase, &configEvent)) + { +#ifdef WITH_DISTRO_XRAND_XINERAMA + XRRUpdateConfiguration(&configEvent); +#else + if (x11Context.pXRRUpdateConfiguration) + x11Context.pXRRUpdateConfiguration(&configEvent); +#endif + event = true; + } +#ifdef WITH_DISTRO_XRAND_XINERAMA + XRRSelectInput(x11Context.pDisplay, x11Context.rootWindow, 0); +#else + if (x11Context.pXRRSelectInput) + x11Context.pXRRSelectInput(x11Context.pDisplay, x11Context.rootWindow, 0); +#endif + XRRScreenSize newSize = currentSize(); + + /* On Solaris guest, new screen size is not reported properly despite + * RRScreenChangeNotify event arrives. Hense, only check for event here. + * Linux guests do report new size correctly. */ + if ( !event +#ifndef RT_OS_SOLARIS + || newSize.width != (int)iXRes || newSize.height != (int)iYRes +#endif + ) + { + VBClLogError("Resizing frame buffer to %d %d has failed, current mode %d %d\n", + iXRes, iYRes, newSize.width, newSize.height); + return false; + } + return true; +} + +static XRRModeInfo *createMode(int iXRes, int iYRes) +{ + XRRModeInfo *pModeInfo = NULL; + char sModeName[126]; + sprintf(sModeName, "%dx%d_vbox", iXRes, iYRes); +#ifdef WITH_DISTRO_XRAND_XINERAMA + pModeInfo = XRRAllocModeInfo(sModeName, strlen(sModeName)); +#else + if (x11Context.pXRRAllocModeInfo) + pModeInfo = x11Context.pXRRAllocModeInfo(sModeName, strlen(sModeName)); +#endif + pModeInfo->width = iXRes; + pModeInfo->height = iYRes; + + DisplayModeR const mode = VBoxClient_xf86CVTMode(iXRes, iYRes, 60 /*VRefresh */, true /*Reduced */, false /* Interlaced */); + + /* Convert kHz to Hz: f86CVTMode returns clock value in units of kHz, + * XRRCreateMode will expect it in units of Hz. */ + pModeInfo->dotClock = mode.Clock * 1000; + + pModeInfo->hSyncStart = mode.HSyncStart; + pModeInfo->hSyncEnd = mode.HSyncEnd; + pModeInfo->hTotal = mode.HTotal; + pModeInfo->hSkew = mode.HSkew; + pModeInfo->vSyncStart = mode.VSyncStart; + pModeInfo->vSyncEnd = mode.VSyncEnd; + pModeInfo->vTotal = mode.VTotal; + + RRMode newMode = None; +#ifdef WITH_DISTRO_XRAND_XINERAMA + newMode = XRRCreateMode(x11Context.pDisplay, x11Context.rootWindow, pModeInfo); +#else + if (x11Context.pXRRCreateMode) + newMode = x11Context.pXRRCreateMode(x11Context.pDisplay, x11Context.rootWindow, pModeInfo); +#endif + if (newMode == None) + { +#ifdef WITH_DISTRO_XRAND_XINERAMA + XRRFreeModeInfo(pModeInfo); +#else + if (x11Context.pXRRFreeModeInfo) + x11Context.pXRRFreeModeInfo(pModeInfo); +#endif + return NULL; + } + pModeInfo->id = newMode; + return pModeInfo; +} + +static bool configureOutput(int iOutputIndex, struct RANDROUTPUT *paOutputs) +{ + if (iOutputIndex >= x11Context.hOutputCount) + { + VBClLogError("Output index %d is greater than # of oputputs %d\n", iOutputIndex, x11Context.hOutputCount); + return false; + } + + AssertReturn(iOutputIndex >= 0, false); + AssertReturn(iOutputIndex < VMW_MAX_HEADS, false); + + /* Remember the last instantiated display mode ID here. This mode will be replaced with the + * new one on the next guest screen resize event. */ + static RRMode aPrevMode[VMW_MAX_HEADS]; + + RROutput outputId = x11Context.pScreenResources->outputs[iOutputIndex]; + XRROutputInfo *pOutputInfo = NULL; +#ifdef WITH_DISTRO_XRAND_XINERAMA + pOutputInfo = XRRGetOutputInfo(x11Context.pDisplay, x11Context.pScreenResources, outputId); +#else + if (x11Context.pXRRGetOutputInfo) + pOutputInfo = x11Context.pXRRGetOutputInfo(x11Context.pDisplay, x11Context.pScreenResources, outputId); +#endif + if (!pOutputInfo) + return false; + XRRModeInfo *pModeInfo = NULL; + bool fNewMode = false; + /* Index of the mode within the XRRScreenResources.modes array. -1 if such a mode with required resolution does not exists*/ + int iModeIndex = findExistingModeIndex(paOutputs[iOutputIndex].width, paOutputs[iOutputIndex].height); + if (iModeIndex != -1 && iModeIndex < x11Context.pScreenResources->nmode) + pModeInfo = &(x11Context.pScreenResources->modes[iModeIndex]); + else + { + /* A mode with required size was not found. Create a new one. */ + pModeInfo = createMode(paOutputs[iOutputIndex].width, paOutputs[iOutputIndex].height); + VBClLogInfo("create mode %s (%u) on output %d\n", pModeInfo->name, pModeInfo->id, iOutputIndex); + fNewMode = true; + } + if (!pModeInfo) + { + VBClLogError("Could not create mode for the resolution (%d, %d)\n", + paOutputs[iOutputIndex].width, paOutputs[iOutputIndex].height); + return false; + } + +#ifdef WITH_DISTRO_XRAND_XINERAMA + XRRAddOutputMode(x11Context.pDisplay, outputId, pModeInfo->id); +#else + if (x11Context.pXRRAddOutputMode) + x11Context.pXRRAddOutputMode(x11Context.pDisplay, outputId, pModeInfo->id); +#endif + + /* If mode has been newly created, destroy and forget mode created on previous guest screen resize event. */ + if ( aPrevMode[iOutputIndex] > 0 + && pModeInfo->id != aPrevMode[iOutputIndex] + && fNewMode) + { + VBClLogInfo("removing unused mode %u from output %d\n", aPrevMode[iOutputIndex], iOutputIndex); +#ifdef WITH_DISTRO_XRAND_XINERAMA + XRRDeleteOutputMode(x11Context.pDisplay, outputId, aPrevMode[iOutputIndex]); + XRRDestroyMode(x11Context.pDisplay, aPrevMode[iOutputIndex]); +#else + if (x11Context.pXRRDeleteOutputMode) + x11Context.pXRRDeleteOutputMode(x11Context.pDisplay, outputId, aPrevMode[iOutputIndex]); + if (x11Context.pXRRDestroyMode) + x11Context.pXRRDestroyMode(x11Context.pDisplay, aPrevMode[iOutputIndex]); +#endif + /* Forget destroyed mode. */ + aPrevMode[iOutputIndex] = 0; + } + + /* Only cache modes created "by us". XRRDestroyMode will complain if provided mode + * was not created by XRRCreateMode call. */ + if (fNewMode) + aPrevMode[iOutputIndex] = pModeInfo->id; + + if (paOutputs[iOutputIndex].fPrimary) + { +#ifdef WITH_DISTRO_XRAND_XINERAMA + XRRSetOutputPrimary(x11Context.pDisplay, x11Context.rootWindow, outputId); +#else + if (x11Context.pXRRSetOutputPrimary) + x11Context.pXRRSetOutputPrimary(x11Context.pDisplay, x11Context.rootWindow, outputId); +#endif + } + + /* Make sure outputs crtc is set. */ + pOutputInfo->crtc = pOutputInfo->crtcs[0]; + + RRCrtc crtcId = pOutputInfo->crtcs[0]; + Status ret = Success; +#ifdef WITH_DISTRO_XRAND_XINERAMA + ret = XRRSetCrtcConfig(x11Context.pDisplay, x11Context.pScreenResources, crtcId, CurrentTime, + paOutputs[iOutputIndex].x, paOutputs[iOutputIndex].y, + pModeInfo->id, RR_Rotate_0, &(outputId), 1 /*int noutputs*/); +#else + if (x11Context.pXRRSetCrtcConfig) + ret = x11Context.pXRRSetCrtcConfig(x11Context.pDisplay, x11Context.pScreenResources, crtcId, CurrentTime, + paOutputs[iOutputIndex].x, paOutputs[iOutputIndex].y, + pModeInfo->id, RR_Rotate_0, &(outputId), 1 /*int noutputs*/); +#endif + if (ret != Success) + VBClLogError("crtc set config failed for output %d\n", iOutputIndex); + +#ifdef WITH_DISTRO_XRAND_XINERAMA + XRRFreeOutputInfo(pOutputInfo); +#else + if (x11Context.pXRRFreeOutputInfo) + x11Context.pXRRFreeOutputInfo(pOutputInfo); +#endif + + if (fNewMode) + { +#ifdef WITH_DISTRO_XRAND_XINERAMA + XRRFreeModeInfo(pModeInfo); +#else + if (x11Context.pXRRFreeModeInfo) + x11Context.pXRRFreeModeInfo(pModeInfo); +#endif + } + return true; +} + +/** Construct the xrandr command which sets the whole monitor topology each time. */ +static void setXrandrTopology(struct RANDROUTPUT *paOutputs) +{ + if (!x11Context.pDisplay) + { + VBClLogInfo("not connected to X11\n"); + return; + } + + XGrabServer(x11Context.pDisplay); + if (x11Context.fWmwareCtrlExtention) + callVMWCTRL(paOutputs); + +#ifdef WITH_DISTRO_XRAND_XINERAMA + x11Context.pScreenResources = XRRGetScreenResources(x11Context.pDisplay, x11Context.rootWindow); +#else + if (x11Context.pXRRGetScreenResources) + x11Context.pScreenResources = x11Context.pXRRGetScreenResources(x11Context.pDisplay, x11Context.rootWindow); +#endif + + x11Context.hOutputCount = RT_VALID_PTR(x11Context.pScreenResources) ? determineOutputCount() : 0; + if (!x11Context.pScreenResources) + { + XUngrabServer(x11Context.pDisplay); + XFlush(x11Context.pDisplay); + return; + } + + /* Disable crtcs. */ + for (int i = 0; i < x11Context.pScreenResources->noutput; ++i) + { + XRROutputInfo *pOutputInfo = NULL; +#ifdef WITH_DISTRO_XRAND_XINERAMA + pOutputInfo = XRRGetOutputInfo(x11Context.pDisplay, x11Context.pScreenResources, x11Context.pScreenResources->outputs[i]); +#else + if (x11Context.pXRRGetOutputInfo) + pOutputInfo = x11Context.pXRRGetOutputInfo(x11Context.pDisplay, x11Context.pScreenResources, x11Context.pScreenResources->outputs[i]); +#endif + if (!pOutputInfo) + continue; + if (pOutputInfo->crtc == None) + continue; + + if (!disableCRTC(pOutputInfo->crtc)) + { + VBClLogFatalError("Crtc disable failed %lu\n", pOutputInfo->crtc); + XUngrabServer(x11Context.pDisplay); + XSync(x11Context.pDisplay, False); +#ifdef WITH_DISTRO_XRAND_XINERAMA + XRRFreeScreenResources(x11Context.pScreenResources); +#else + if (x11Context.pXRRFreeScreenResources) + x11Context.pXRRFreeScreenResources(x11Context.pScreenResources); +#endif + XFlush(x11Context.pDisplay); + return; + } +#ifdef WITH_DISTRO_XRAND_XINERAMA + XRRFreeOutputInfo(pOutputInfo); +#else + if (x11Context.pXRRFreeOutputInfo) + x11Context.pXRRFreeOutputInfo(pOutputInfo); +#endif + } + /* Resize the frame buffer. */ + if (!resizeFrameBuffer(paOutputs)) + { + XUngrabServer(x11Context.pDisplay); + XSync(x11Context.pDisplay, False); +#ifdef WITH_DISTRO_XRAND_XINERAMA + XRRFreeScreenResources(x11Context.pScreenResources); +#else + if (x11Context.pXRRFreeScreenResources) + x11Context.pXRRFreeScreenResources(x11Context.pScreenResources); +#endif + XFlush(x11Context.pDisplay); + return; + } + + /* Configure the outputs. */ + for (int i = 0; i < x11Context.hOutputCount; ++i) + { + /* be paranoid. */ + if (i >= x11Context.pScreenResources->noutput) + break; + if (!paOutputs[i].fEnabled) + continue; + if (configureOutput(i, paOutputs)) + VBClLogInfo("output[%d] successfully configured\n", i); + else + VBClLogError("failed to configure output[%d]\n", i); + } + XSync(x11Context.pDisplay, False); +#ifdef WITH_DISTRO_XRAND_XINERAMA + XRRFreeScreenResources(x11Context.pScreenResources); +#else + if (x11Context.pXRRFreeScreenResources) + x11Context.pXRRFreeScreenResources(x11Context.pScreenResources); +#endif + XUngrabServer(x11Context.pDisplay); + XFlush(x11Context.pDisplay); +} + +/** + * @interface_method_impl{VBCLSERVICE,pfnWorker} + */ +static DECLCALLBACK(int) vbclSVGAWorker(bool volatile *pfShutdown) +{ + /* Do not acknowledge the first event we query for to pick up old events, + * e.g. from before a guest reboot. */ + bool fAck = false; + bool fFirstRun = true; + static struct VMMDevDisplayDef aMonitors[VMW_MAX_HEADS]; + + int rc = VbglR3CtlFilterMask(VMMDEV_EVENT_DISPLAY_CHANGE_REQUEST, 0); + if (RT_FAILURE(rc)) + VBClLogFatalError("Failed to request display change events, rc=%Rrc\n", rc); + rc = VbglR3AcquireGuestCaps(VMMDEV_GUEST_SUPPORTS_GRAPHICS, 0, false); + if (RT_FAILURE(rc)) + VBClLogFatalError("Failed to register resizing support, rc=%Rrc\n", rc); + if (rc == VERR_RESOURCE_BUSY) /* Someone else has already acquired it. */ + return VERR_RESOURCE_BUSY; + + /* Let the main thread know that it can continue spawning services. */ + RTThreadUserSignal(RTThreadSelf()); + + for (;;) + { + struct VMMDevDisplayDef aDisplays[VMW_MAX_HEADS]; + uint32_t cDisplaysOut; + /* Query the first size without waiting. This lets us e.g. pick up + * the last event before a guest reboot when we start again after. */ + rc = VbglR3GetDisplayChangeRequestMulti(VMW_MAX_HEADS, &cDisplaysOut, aDisplays, fAck); + fAck = true; + if (RT_FAILURE(rc)) + VBClLogError("Failed to get display change request, rc=%Rrc\n", rc); + if (cDisplaysOut > VMW_MAX_HEADS) + VBClLogError("Display change request contained, rc=%Rrc\n", rc); + if (cDisplaysOut > 0) + { + for (unsigned i = 0; i < cDisplaysOut && i < VMW_MAX_HEADS; ++i) + { + uint32_t idDisplay = aDisplays[i].idDisplay; + if (idDisplay >= VMW_MAX_HEADS) + continue; + aMonitors[idDisplay].fDisplayFlags = aDisplays[i].fDisplayFlags; + if (!(aDisplays[i].fDisplayFlags & VMMDEV_DISPLAY_DISABLED)) + { + if (idDisplay == 0 || (aDisplays[i].fDisplayFlags & VMMDEV_DISPLAY_ORIGIN)) + { + aMonitors[idDisplay].xOrigin = aDisplays[i].xOrigin; + aMonitors[idDisplay].yOrigin = aDisplays[i].yOrigin; + } else { + aMonitors[idDisplay].xOrigin = aMonitors[idDisplay - 1].xOrigin + aMonitors[idDisplay - 1].cx; + aMonitors[idDisplay].yOrigin = aMonitors[idDisplay - 1].yOrigin; + } + aMonitors[idDisplay].cx = aDisplays[i].cx; + aMonitors[idDisplay].cy = aDisplays[i].cy; + } + } + /* Create a whole topology and send it to xrandr. */ + struct RANDROUTPUT aOutputs[VMW_MAX_HEADS]; + int iRunningX = 0; + for (int j = 0; j < x11Context.hOutputCount; ++j) + { + aOutputs[j].x = iRunningX; + aOutputs[j].y = aMonitors[j].yOrigin; + aOutputs[j].width = aMonitors[j].cx; + aOutputs[j].height = aMonitors[j].cy; + aOutputs[j].fEnabled = !(aMonitors[j].fDisplayFlags & VMMDEV_DISPLAY_DISABLED); + aOutputs[j].fPrimary = (aMonitors[j].fDisplayFlags & VMMDEV_DISPLAY_PRIMARY); + if (aOutputs[j].fEnabled) + iRunningX += aOutputs[j].width; + } + /* In 32-bit guests GAs build on our release machines causes an xserver lock during vmware_ctrl extention + if we do the call withing XGrab. We make the call the said extension only once (to connect the outputs) + rather than at each resize iteration. */ +#if ARCH_BITS == 32 + if (fFirstRun) + callVMWCTRL(aOutputs); +#endif + setXrandrTopology(aOutputs); + /* Wait for some seconds and set toplogy again after the boot. In some desktop environments (cinnamon) where + DE get into our resizing our first resize is reverted by the DE. Sleeping for some secs. helps. Setting + topology a 2nd time resolves the black screen I get after resizing.*/ + if (fFirstRun) + { + sleep(4); + setXrandrTopology(aOutputs); + fFirstRun = false; + } + } + uint32_t events; + do + { + rc = VbglR3WaitEvent(VMMDEV_EVENT_DISPLAY_CHANGE_REQUEST, VBOX_SVGA_HOST_EVENT_RX_TIMEOUT_MS, &events); + } while (rc == VERR_TIMEOUT && !ASMAtomicReadBool(pfShutdown)); + + if (ASMAtomicReadBool(pfShutdown)) + { + /* Shutdown requested. */ + break; + } + else if (RT_FAILURE(rc)) + { + VBClLogFatalError("Failure waiting for event, rc=%Rrc\n", rc); + } + + }; + + return VINF_SUCCESS; +} + +VBCLSERVICE g_SvcDisplaySVGA = +{ + "dp-svga-x11", /* szName */ + "SVGA X11 display", /* pszDescription */ + ".vboxclient-display-svga-x11", /* pszPidFilePathTemplate */ + NULL, /* pszUsage */ + NULL, /* pszOptions */ + NULL, /* pfnOption */ + vbclSVGAInit, /* pfnInit */ + vbclSVGAWorker, /* pfnWorker */ + vbclSVGAStop, /* pfnStop*/ + NULL /* pfnTerm */ +}; + |