svn merge file:///D:/svnrepos/vcxsrv/branches/released .

1 files changed, 457 insertions, 338 deletions

diff --git a/xorg-server/hw/xquartz/darwinEvents.c b/xorg-server/hw/xquartz/darwinEvents.c
index 827fd81b8..374c4e07e 100644
--- a/xorg-server/hw/xquartz/darwinEvents.c
+++ b/xorg-server/hw/xquartz/darwinEvents.c
@@ -1,7 +1,7 @@
 /*
 Darwin event queue and event handling
 
-Copyright 2007 Apple Inc.
+Copyright 2007-2008 Apple Inc.
 Copyright 2004 Kaleb S. KEITHLEY. All Rights Reserved.
 Copyright (c) 2002-2004 Torrey T. Lyons. All Rights Reserved.
 
@@ -30,6 +30,12 @@ used in advertising or otherwise to promote the sale, use or other dealings
 in this Software without prior written authorization from The Open Group.
  */
 
+#include "sanitizedCarbon.h"
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
 #define NEED_EVENTS
 #include   <X11/X.h>
 #include   <X11/Xmd.h>
@@ -41,421 +47,534 @@ in this Software without prior written authorization from The Open Group.
 #include   "mi.h"
 #include   "scrnintstr.h"
 #include   "mipointer.h"
+#include   "os.h"
 
 #include "darwin.h"
 #include "quartz.h"
-#include "darwinKeyboard.h"
+#include "quartzKeyboard.h"
 #include "darwinEvents.h"
 
 #include <sys/types.h>
 #include <sys/uio.h>
 #include <unistd.h>
+#include <pthread.h>
+#include <errno.h>
+
 #include <IOKit/hidsystem/IOLLEvent.h>
 
 /* Fake button press/release for scroll wheel move. */
-#define SCROLLWHEELUPFAKE   4
-#define SCROLLWHEELDOWNFAKE 5
+#define SCROLLWHEELUPFAKE    4
+#define SCROLLWHEELDOWNFAKE  5
+#define SCROLLWHEELLEFTFAKE  6
+#define SCROLLWHEELRIGHTFAKE 7
 
-#define QUEUE_SIZE 256
+#define _APPLEWM_SERVER_
+#include "applewmExt.h"
+#include <X11/extensions/applewm.h>
 
-typedef struct _Event {
-    xEvent      event;
-    ScreenPtr   pScreen;
-} EventRec, *EventPtr;
+/* FIXME: Abstract this better */
+void QuartzModeEQInit(void);
 
-int input_check_zero, input_check_flag;
+int darwin_modifier_flags = 0;  // last known modifier state
 
-static int old_flags = 0;  // last known modifier state
+#define FD_ADD_MAX 128
+static int fd_add[FD_ADD_MAX];
+int fd_add_count = 0;
+static pthread_mutex_t fd_add_lock = PTHREAD_MUTEX_INITIALIZER;
+static pthread_cond_t fd_add_ready_cond = PTHREAD_COND_INITIALIZER;
+static pthread_t fd_add_tid = NULL;
 
-typedef struct _EventQueue {
-    HWEventQueueType    head, tail; /* long for SetInputCheck */
-    CARD32      lastEventTime;      /* to avoid time running backwards */
-    Bool        lastMotion;
-    EventRec    events[QUEUE_SIZE]; /* static allocation for signals */
-    DevicePtr   pKbd, pPtr;         /* device pointer, to get funcs */
-    ScreenPtr   pEnqueueScreen;     /* screen events are being delivered to */
-    ScreenPtr   pDequeueScreen;     /* screen events are being dispatched to */
-} EventQueueRec, *EventQueuePtr;
+static EventList *darwinEvents = NULL;
 
-static EventQueueRec darwinEventQueue;
-xEvent *darwinEvents;
+static pthread_mutex_t mieq_lock = PTHREAD_MUTEX_INITIALIZER;
+static pthread_cond_t mieq_ready_cond = PTHREAD_COND_INITIALIZER;
 
-/*
- * DarwinPressModifierMask
- *  Press or release the given modifier key, specified by its mask.
- */
-static void DarwinPressModifierMask(
-    int pressed,				    
-    int mask)       // one of NX_*MASK constants
-{
-    int key = DarwinModifierNXMaskToNXKey(mask);
+/*** Pthread Magics ***/
+static pthread_t create_thread(void *func, void *arg) {
+    pthread_attr_t attr;
+    pthread_t tid;
 
-    if (key != -1) {
-        int keycode = DarwinModifierNXKeyToNXKeycode(key, 0);
-        if (keycode != 0)
-	  DarwinSendKeyboardEvents(pressed, keycode);
-    }
-}
-
-#ifdef NX_DEVICELCTLKEYMASK
-#define CONTROL_MASK(flags) (flags & (NX_DEVICELCTLKEYMASK|NX_DEVICERCTLKEYMASK))
-#else
-#define CONTROL_MASK(flags) (NX_CONTROLMASK)
-#endif /* NX_DEVICELCTLKEYMASK */
-
-#ifdef NX_DEVICELSHIFTKEYMASK
-#define SHIFT_MASK(flags) (flags & (NX_DEVICELSHIFTKEYMASK|NX_DEVICERSHIFTKEYMASK))
-#else
-#define SHIFT_MASK(flags) (NX_SHIFTMASK)
-#endif /* NX_DEVICELSHIFTKEYMASK */
-
-#ifdef NX_DEVICELCMDKEYMASK
-#define COMMAND_MASK(flags) (flags & (NX_DEVICELCMDKEYMASK|NX_DEVICERCMDKEYMASK))
-#else
-#define COMMAND_MASK(flags) (NX_COMMANDMASK)
-#endif /* NX_DEVICELCMDKEYMASK */
+    pthread_attr_init (&attr);
+    pthread_attr_setscope (&attr, PTHREAD_SCOPE_SYSTEM);
+    pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
+    pthread_create (&tid, &attr, func, arg);
+    pthread_attr_destroy (&attr);
 
-#ifdef NX_DEVICELALTKEYMASK
-#define ALTERNATE_MASK(flags) (flags & (NX_DEVICELALTKEYMASK|NX_DEVICERALTKEYMASK))
-#else
-#define ALTERNATE_MASK(flags) (NX_ALTERNATEMASK)
-#endif /* NX_DEVICELALTKEYMASK */
+    return tid;
+}
 
-/*
- * DarwinUpdateModifiers
- *  Send events to update the modifier state.
- */
-static void DarwinUpdateModifiers(
-    int pressed,        // KeyPress or KeyRelease
-    int flags )         // modifier flags that have changed
-{
-    if (flags & NX_ALPHASHIFTMASK) {
-        DarwinPressModifierMask(pressed, NX_ALPHASHIFTMASK);
-    }
-    if (flags & NX_COMMANDMASK) {
-        DarwinPressModifierMask(pressed, COMMAND_MASK(flags));
-    }
-    if (flags & NX_CONTROLMASK) {
-        DarwinPressModifierMask(pressed, CONTROL_MASK(flags));
-    }
-    if (flags & NX_ALTERNATEMASK) {
-        DarwinPressModifierMask(pressed, ALTERNATE_MASK(flags));
-    }
-    if (flags & NX_SHIFTMASK) {
-        DarwinPressModifierMask(pressed, SHIFT_MASK(flags));
+void darwinEvents_lock(void);
+void darwinEvents_lock(void) {
+    int err;
+    if((err = pthread_mutex_lock(&mieq_lock))) {
+        ErrorF("%s:%s:%d: Failed to lock mieq_lock: %d\n",
+               __FILE__, __FUNCTION__, __LINE__, err);
+        spewCallStack();
     }
-    if (flags & NX_SECONDARYFNMASK) {
-        DarwinPressModifierMask(pressed, NX_SECONDARYFNMASK);
+    if(darwinEvents == NULL) {
+        pthread_cond_wait(&mieq_ready_cond, &mieq_lock);
     }
 }
 
-/*
- * DarwinReleaseModifiers
- * This hacky function releases all modifier keys.  It should be called when X11.app
- * is deactivated (kXDarwinDeactivate) to prevent modifiers from getting stuck if they
- * are held down during a "context" switch -- otherwise, we would miss the KeyUp.
- */
-static void DarwinReleaseModifiers(void) {
-	DarwinUpdateModifiers(KeyRelease, COMMAND_MASK(-1) | CONTROL_MASK(-1) | ALTERNATE_MASK(-1) | SHIFT_MASK(-1));
+void darwinEvents_unlock(void);
+void darwinEvents_unlock(void) {
+    int err;
+    if((err = pthread_mutex_unlock(&mieq_lock))) {
+        ErrorF("%s:%s:%d: Failed to unlock mieq_lock: %d\n",
+               __FILE__, __FUNCTION__, __LINE__, err);
+        spewCallStack();
+    }
 }
 
 /*
- * DarwinSimulateMouseClick
- *  Send a mouse click to X when multiple mouse buttons are simulated
- *  with modifier-clicks, such as command-click for button 2. The dix
- *  layer is told that the previously pressed modifier key(s) are
- *  released, the simulated click event is sent. After the mouse button
- *  is released, the modifier keys are reverted to their actual state,
- *  which may or may not be pressed at that point. This is usually
- *  closest to what the user wants. Ie. the user typically wants to
- *  simulate a button 2 press instead of Command-button 2.
+ * DarwinPressModifierKey
+ * Press or release the given modifier key (one of NX_MODIFIERKEY_* constants)
  */
-static void DarwinSimulateMouseClick(
-    int pointer_x,
-    int pointer_y,
-    int whichButton,    // mouse button to be pressed
-    int modifierMask)   // modifiers used for the fake click
-{
-    // first fool X into forgetting about the keys
-	// for some reason, it's not enough to tell X we released the Command key -- 
-	// it has to be the *left* Command key.
-	if (modifierMask & NX_COMMANDMASK) modifierMask |=NX_DEVICELCMDKEYMASK ;
-    DarwinUpdateModifiers(KeyRelease, modifierMask);
-
-    // push the mouse button
-    DarwinSendPointerEvents(ButtonPress, whichButton, pointer_x, pointer_y);
-    DarwinSendPointerEvents(ButtonRelease, whichButton, pointer_x, pointer_y);
-
-    // restore old modifiers
-    DarwinUpdateModifiers(KeyPress, modifierMask);
-}
+static void DarwinPressModifierKey(int pressed, int key) {
+    int keycode = DarwinModifierNXKeyToNXKeycode(key, 0);
 
+    if (keycode == 0) {
+        ErrorF("DarwinPressModifierKey bad keycode: key=%d\n", key);
+        return;
+    }
 
-Bool DarwinEQInit(DevicePtr pKbd, DevicePtr pPtr) { 
-    darwinEvents = (xEvent *)malloc(sizeof(xEvent) * GetMaximumEventsNum());
-    mieqInit();
-    darwinEventQueue.head = darwinEventQueue.tail = 0;
-    darwinEventQueue.lastEventTime = GetTimeInMillis ();
-    darwinEventQueue.pKbd = pKbd;
-    darwinEventQueue.pPtr = pPtr;
-    darwinEventQueue.pEnqueueScreen = screenInfo.screens[0];
-    darwinEventQueue.pDequeueScreen = darwinEventQueue.pEnqueueScreen;
-    SetInputCheck(&input_check_zero, &input_check_flag);
-    return TRUE;
+    DarwinSendKeyboardEvents(pressed, keycode);
 }
 
-
 /*
- * DarwinEQEnqueue
- *  Must be thread safe with ProcessInputEvents.
- *    DarwinEQEnqueue    - called from event gathering thread
- *    ProcessInputEvents - called from X server thread
- *  DarwinEQEnqueue should never be called from more than one thread.
- * 
- * This should be deprecated in favor of miEQEnqueue -- BB
+ * DarwinUpdateModifiers
+ *  Send events to update the modifier state.
  */
-void DarwinEQEnqueue(const xEventPtr e) {
-    HWEventQueueType oldtail, newtail;
-
-    oldtail = darwinEventQueue.tail;
 
-    // mieqEnqueue() collapses successive motion events into one event.
-    // This is difficult to do in a thread-safe way and rarely useful.
-
-    newtail = oldtail + 1;
-    if (newtail == QUEUE_SIZE) newtail = 0;
-    /* Toss events which come in late */
-    if (newtail == darwinEventQueue.head) return;
+int darwin_modifier_mask_list[] = {
+#ifdef NX_DEVICELCMDKEYMASK
+    NX_DEVICELCTLKEYMASK, NX_DEVICERCTLKEYMASK,
+    NX_DEVICELSHIFTKEYMASK, NX_DEVICERSHIFTKEYMASK,
+    NX_DEVICELCMDKEYMASK, NX_DEVICERCMDKEYMASK,
+    NX_DEVICELALTKEYMASK, NX_DEVICERALTKEYMASK,
+#else
+    NX_CONTROLMASK, NX_SHIFTMASK, NX_COMMANDMASK, NX_ALTERNATEMASK,
+#endif
+    NX_ALPHASHIFTMASK,
+    0
+};
 
-    darwinEventQueue.events[oldtail].event = *e;
+static void DarwinUpdateModifiers(
+    int pressed,        // KeyPress or KeyRelease
+    int flags )         // modifier flags that have changed
+{
+    int *f;
+    int key;
 
-    /*
-     * Make sure that event times don't go backwards - this
-     * is "unnecessary", but very useful
+    /* Capslock is special.  This mask is the state of capslock (on/off),
+     * not the state of the button.  Hopefully we can find a better solution.
      */
-    if (e->u.keyButtonPointer.time < darwinEventQueue.lastEventTime &&
-        darwinEventQueue.lastEventTime - e->u.keyButtonPointer.time < 10000)
-    {
-        darwinEventQueue.events[oldtail].event.u.keyButtonPointer.time =
-        darwinEventQueue.lastEventTime;
+    if(NX_ALPHASHIFTMASK & flags) {
+        DarwinPressModifierKey(KeyPress, NX_MODIFIERKEY_ALPHALOCK);
+        DarwinPressModifierKey(KeyRelease, NX_MODIFIERKEY_ALPHALOCK);
     }
-    darwinEventQueue.events[oldtail].pScreen = darwinEventQueue.pEnqueueScreen;
+    
+    for(f=darwin_modifier_mask_list; *f; f++)
+        if(*f & flags && *f != NX_ALPHASHIFTMASK) {
+            key = DarwinModifierNXMaskToNXKey(*f);
+            if(key == -1)
+                ErrorF("DarwinUpdateModifiers: Unsupported NXMask: 0x%x\n", *f);
+            else
+                DarwinPressModifierKey(pressed, key);
+        }
+}
 
-    // Update the tail after the event is prepared
-    darwinEventQueue.tail = newtail;
+/* Generic handler for Xquartz-specifc events.  When possible, these should
+   be moved into their own individual functions and set as handlers using
+   mieqSetHandler. */
+
+static void DarwinEventHandler(int screenNum, xEventPtr xe, DeviceIntPtr dev, int nevents) {
+    int i;
+    
+    TA_SERVER();
+
+//    DEBUG_LOG("DarwinEventHandler(%d, %p, %p, %d)\n", screenNum, xe, dev, nevents);
+    for (i=0; i<nevents; i++) {
+        switch(xe[i].u.u.type) {
+            case kXquartzControllerNotify:
+                DEBUG_LOG("kXquartzControllerNotify\n");
+                AppleWMSendEvent(AppleWMControllerNotify,
+                                 AppleWMControllerNotifyMask,
+                                 xe[i].u.clientMessage.u.l.longs0,
+                                 xe[i].u.clientMessage.u.l.longs1);
+                break;
+                
+            case kXquartzPasteboardNotify:
+                DEBUG_LOG("kXquartzPasteboardNotify\n");
+                AppleWMSendEvent(AppleWMPasteboardNotify,
+                                 AppleWMPasteboardNotifyMask,
+                                 xe[i].u.clientMessage.u.l.longs0,
+                                 xe[i].u.clientMessage.u.l.longs1);
+                break;
+                
+            case kXquartzActivate:
+                DEBUG_LOG("kXquartzActivate\n");
+                QuartzShow(xe[i].u.keyButtonPointer.rootX,
+                           xe[i].u.keyButtonPointer.rootY);
+                AppleWMSendEvent(AppleWMActivationNotify,
+                                 AppleWMActivationNotifyMask,
+                                 AppleWMIsActive, 0);
+                break;
+                
+            case kXquartzDeactivate:
+                DEBUG_LOG("kXquartzDeactivate\n");
+                AppleWMSendEvent(AppleWMActivationNotify,
+                                 AppleWMActivationNotifyMask,
+                                 AppleWMIsInactive, 0);
+                QuartzHide();
+                break;
 
-    // Signal there is an event ready to handle
-    DarwinPokeEQ();
-}
+            case kXquartzReloadPreferences:
+                DEBUG_LOG("kXquartzReloadPreferences\n");
+                AppleWMSendEvent(AppleWMActivationNotify,
+                                 AppleWMActivationNotifyMask,
+                                 AppleWMReloadPreferences, 0);
+                break;
+                
+            case kXquartzToggleFullscreen:
+                DEBUG_LOG("kXquartzToggleFullscreen\n");
+                if (quartzEnableRootless) 
+                    QuartzSetFullscreen(!quartzHasRoot);
+                else if (quartzHasRoot)
+                    QuartzHide();
+                else
+                    QuartzShow(xe[i].u.keyButtonPointer.rootX,
+                               xe[i].u.keyButtonPointer.rootY);
+                break;
+                
+            case kXquartzSetRootless:
+                DEBUG_LOG("kXquartzSetRootless\n");
+                QuartzSetRootless(xe[i].u.clientMessage.u.l.longs0);
+                if (!quartzEnableRootless && !quartzHasRoot)
+                    QuartzHide();
+                break;
+                
+            case kXquartzSetRootClip:
+                QuartzSetRootClip((Bool)xe[i].u.clientMessage.u.l.longs0);
+                break;
+                
+            case kXquartzQuit:
+                GiveUp(0);
+                break;
+                
+            case kXquartzSpaceChanged:
+                DEBUG_LOG("kXquartzSpaceChanged\n");
+                QuartzSpaceChanged(xe[i].u.clientMessage.u.l.longs0);
+                break;
 
+            default:
+                ErrorF("Unknown application defined event type %d.\n", xe[i].u.u.type);
+		}	
+    }
+}
 
-/*
- * DarwinEQPointerPost
- *  Post a pointer event. Used by the mipointer.c routines.
- */
-void DarwinEQPointerPost(DeviceIntPtr pdev, xEventPtr e) {
-    (*darwinEventQueue.pPtr->processInputProc)
-            (e, (DeviceIntPtr)darwinEventQueue.pPtr, 1);
+void DarwinListenOnOpenFD(int fd) {
+    ErrorF("DarwinListenOnOpenFD: %d\n", fd);
+    
+    pthread_mutex_lock(&fd_add_lock);
+    if(fd_add_count < FD_ADD_MAX)
+        fd_add[fd_add_count++] = fd;
+    else
+        ErrorF("FD Addition buffer at max.  Dropping fd addition request.\n");
+
+    pthread_cond_broadcast(&fd_add_ready_cond);
+    pthread_mutex_unlock(&fd_add_lock);
 }
 
+static void DarwinProcessFDAdditionQueue_thread(void *args) {
+    pthread_mutex_lock(&fd_add_lock);
+    while(true) {
+        while(fd_add_count) {
+            DarwinSendDDXEvent(kXquartzListenOnOpenFD, 1, fd_add[--fd_add_count]);
+        }
+        pthread_cond_wait(&fd_add_ready_cond, &fd_add_lock);
+    }
+}
 
-void DarwinEQSwitchScreen(ScreenPtr pScreen, Bool fromDIX) {
-    darwinEventQueue.pEnqueueScreen = pScreen;
-    if (fromDIX)
-        darwinEventQueue.pDequeueScreen = pScreen;
+static void kXquartzListenOnOpenFDHandler(int screenNum, xEventPtr xe, DeviceIntPtr dev, int nevents) {
+    size_t i;
+    TA_SERVER();
+    
+    for (i=0; i<nevents; i++) {
+        ErrorF("Calling ListenOnOpenFD() for new fd: %d\n", (int)xe[i].u.clientMessage.u.l.longs0);
+        ListenOnOpenFD((int)xe[i].u.clientMessage.u.l.longs0, 1);
+    }
 }
 
+Bool DarwinEQInit(void) { 
+    mieqInit();
+    mieqSetHandler(kXquartzReloadKeymap, DarwinKeyboardReloadHandler);
+    mieqSetHandler(kXquartzActivate, DarwinEventHandler);
+    mieqSetHandler(kXquartzDeactivate, DarwinEventHandler);
+    mieqSetHandler(kXquartzReloadPreferences, DarwinEventHandler);
+    mieqSetHandler(kXquartzSetRootClip, DarwinEventHandler);
+    mieqSetHandler(kXquartzQuit, DarwinEventHandler);
+    mieqSetHandler(kXquartzReadPasteboard, QuartzReadPasteboard);
+    mieqSetHandler(kXquartzWritePasteboard, QuartzWritePasteboard);
+    mieqSetHandler(kXquartzToggleFullscreen, DarwinEventHandler);
+    mieqSetHandler(kXquartzSetRootless, DarwinEventHandler);
+    mieqSetHandler(kXquartzSpaceChanged, DarwinEventHandler);
+    mieqSetHandler(kXquartzControllerNotify, DarwinEventHandler);
+    mieqSetHandler(kXquartzPasteboardNotify, DarwinEventHandler);
+    mieqSetHandler(kXquartzDisplayChanged, QuartzDisplayChangedHandler);
+    mieqSetHandler(kXquartzListenOnOpenFD, kXquartzListenOnOpenFDHandler);
+    
+    QuartzModeEQInit();
+
+    /* Note that this *could* cause a potential async issue, since we're checking
+     * darwinEvents without holding the lock, but darwinEvents is only ever set
+     * here, so I don't bother.
+     */
+    if (!darwinEvents) {
+        darwinEvents = InitEventList(GetMaximumEventsNum());;
+        
+        if (!darwinEvents)
+            FatalError("Couldn't allocate event buffer\n");
+        
+        darwinEvents_lock();
+        pthread_cond_broadcast(&mieq_ready_cond);
+        darwinEvents_unlock();
+    }
+
+    if(!fd_add_tid)
+        fd_add_tid = create_thread(DarwinProcessFDAdditionQueue_thread, NULL);
+    
+    return TRUE;
+}
 
 /*
  * ProcessInputEvents
  *  Read and process events from the event queue until it is empty.
  */
 void ProcessInputEvents(void) {
-    EventRec *e;
-    int     x, y;
     xEvent  xe;
-    // button number and modifier mask of currently pressed fake button
-    input_check_flag=0;
+	int x = sizeof(xe);
+    
+    TA_SERVER();
 
-    //    ErrorF("calling mieqProcessInputEvents\n");
     mieqProcessInputEvents();
 
     // Empty the signaling pipe
-    x = sizeof(xe);
-    while (x == sizeof(xe)) 
-        x = read(darwinEventReadFD, &xe, sizeof(xe));
-
-    while (darwinEventQueue.head != darwinEventQueue.tail)
-    {
-        if (screenIsSaved == SCREEN_SAVER_ON)
-            dixSaveScreens (serverClient, SCREEN_SAVER_OFF, ScreenSaverReset);
-
-        e = &darwinEventQueue.events[darwinEventQueue.head];
-        xe = e->event;
-
-        // Shift from global screen coordinates to coordinates relative to
-        // the origin of the current screen.
-        xe.u.keyButtonPointer.rootX -= darwinMainScreenX +
-                dixScreenOrigins[miPointerCurrentScreen()->myNum].x;
-        xe.u.keyButtonPointer.rootY -= darwinMainScreenY +
-                dixScreenOrigins[miPointerCurrentScreen()->myNum].y;
-	
-	/*	ErrorF("old rootX = (%d,%d) darwinMainScreen = (%d,%d) dixScreenOrigins[%d]=(%d,%d)\n",
-	       xe.u.keyButtonPointer.rootX, xe.u.keyButtonPointer.rootY,
-	       darwinMainScreenX, darwinMainScreenY,
-	       miPointerCurrentScreen()->myNum,
-	       dixScreenOrigins[miPointerCurrentScreen()->myNum].x,
-	       dixScreenOrigins[miPointerCurrentScreen()->myNum].y); */
-
-	//Assumption - screen switching can only occur on motion events
-
-        if (e->pScreen != darwinEventQueue.pDequeueScreen)
-        {
-            darwinEventQueue.pDequeueScreen = e->pScreen;
-            x = xe.u.keyButtonPointer.rootX;
-            y = xe.u.keyButtonPointer.rootY;
-            if (darwinEventQueue.head == QUEUE_SIZE - 1)
-                darwinEventQueue.head = 0;
-            else
-                ++darwinEventQueue.head;
-            NewCurrentScreen (darwinEventQueue.pDequeueScreen, x, y);
-        }
-        else
-        {
-            if (darwinEventQueue.head == QUEUE_SIZE - 1)
-                darwinEventQueue.head = 0;
-            else
-                ++darwinEventQueue.head;
-            switch (xe.u.u.type) {
-            case KeyPress:
-            case KeyRelease:
-	      ErrorF("Unexpected Keyboard event in DarwinProcessInputEvents\n");
-	      break;
-
-            case ButtonPress:
-	      ErrorF("Unexpected ButtonPress event in DarwinProcessInputEvents\n");
-                break;
-
-            case ButtonRelease:
-	      ErrorF("Unexpected ButtonRelease event in DarwinProcessInputEvents\n");
-                break;
-
-            case MotionNotify:
-	      ErrorF("Unexpected ButtonRelease event in DarwinProcessInputEvents\n");
-                break;
-
-            case kXDarwinUpdateModifiers:
-	      ErrorF("Unexpected ButtonRelease event in DarwinProcessInputEvents\n");
-	      break;
-
-            case kXDarwinUpdateButtons:
-	      ErrorF("Unexpected XDarwinScrollWheel event in DarwinProcessInputEvents\n");
-	      break;
-
-            case kXDarwinScrollWheel: 
-	      ErrorF("Unexpected XDarwinScrollWheel event in DarwinProcessInputEvents\n");
-	      break;
-
-			case kXDarwinDeactivate:
-				DarwinReleaseModifiers();
-				// fall through
-            default:
-                // Check for mode specific event
-                QuartzProcessEvent(&xe);
-            }
-        }
+    while (x == sizeof(xe)) {
+      x = read(darwinEventReadFD, &xe, sizeof(xe));
     }
-
-    //    miPointerUpdate();
 }
 
 /* Sends a null byte down darwinEventWriteFD, which will cause the
    Dispatch() event loop to check out event queue */
-void DarwinPokeEQ(void) {
-  char nullbyte=0;
-  input_check_flag++;
-  //  <daniels> bushing: oh, i ... er ... christ.
-  write(darwinEventWriteFD, &nullbyte, 1);
+static void DarwinPokeEQ(void) {
+	char nullbyte=0;
+	//  <daniels> oh, i ... er ... christ.
+	write(darwinEventWriteFD, &nullbyte, 1);
 }
 
-void DarwinSendPointerEvents(int ev_type, int ev_button, int pointer_x, int pointer_y) {
-  static int darwinFakeMouseButtonDown = 0;
-  static int darwinFakeMouseButtonMask = 0;
-  int i, num_events;
-  int valuators[2] = {pointer_x, pointer_y};
-  if (ev_type == ButtonPress && darwinFakeButtons && ev_button == 1) {
-    // Mimic multi-button mouse with modifier-clicks
-    // If both sets of modifiers are pressed,
-    // button 2 is clicked.
-    if ((old_flags & darwinFakeMouse2Mask) == darwinFakeMouse2Mask) {
-      DarwinSimulateMouseClick(pointer_x, pointer_y, 2, darwinFakeMouse2Mask);
-      darwinFakeMouseButtonDown = 2;
-      darwinFakeMouseButtonMask = darwinFakeMouse2Mask;
-    } else if ((old_flags & darwinFakeMouse3Mask) == darwinFakeMouse3Mask) {
-      DarwinSimulateMouseClick(pointer_x, pointer_y, 3, darwinFakeMouse3Mask);
-      darwinFakeMouseButtonDown = 3;
-      darwinFakeMouseButtonMask = darwinFakeMouse3Mask;
+/* Convert from Appkit pointer input values to X input values:
+ * Note: pointer_x and pointer_y are relative to the upper-left of primary
+ *       display.
+ */
+static void DarwinPrepareValuators(DeviceIntPtr pDev, int *valuators, ScreenPtr screen,
+                                   float pointer_x, float pointer_y, 
+                                   float pressure, float tilt_x, float tilt_y) {
+    /* Fix offset between darwin and X screens */
+    pointer_x -= darwinMainScreenX + dixScreenOrigins[screen->myNum].x;
+    pointer_y -= darwinMainScreenY + dixScreenOrigins[screen->myNum].y;
+
+    if(pointer_x < 0.0)
+        pointer_x = 0.0;
+
+    if(pointer_y < 0.0)
+        pointer_y = 0.0;
+    
+    if(pDev == darwinPointer) {
+        valuators[0] = pointer_x;
+        valuators[1] = pointer_y;
+        valuators[2] = 0;
+        valuators[3] = 0;
+        valuators[4] = 0;
+    } else {
+        /* Setup our array of values */
+        valuators[0] = XQUARTZ_VALUATOR_LIMIT * (pointer_x / (float)screenInfo.screens[0]->width);
+        valuators[1] = XQUARTZ_VALUATOR_LIMIT * (pointer_y / (float)screenInfo.screens[0]->height);
+        valuators[2] = XQUARTZ_VALUATOR_LIMIT * pressure;
+        valuators[3] = XQUARTZ_VALUATOR_LIMIT * tilt_x;
+        valuators[4] = XQUARTZ_VALUATOR_LIMIT * tilt_y;
     }
-  }
-  if (ev_type == ButtonRelease && darwinFakeButtons && darwinFakeMouseButtonDown) {
-    // If last mousedown was a fake click, don't check for
-    // mouse modifiers here. The user may have released the
-    // modifiers before the mouse button.
-    ev_button = darwinFakeMouseButtonDown;
-    darwinFakeMouseButtonDown = 0;
-    // Bring modifiers back up to date
-    DarwinUpdateModifiers(KeyPress, darwinFakeMouseButtonMask & old_flags);
-    darwinFakeMouseButtonMask = 0;
-  } 
-
-  num_events = GetPointerEvents(darwinEvents, darwinPointer, ev_type, ev_button, 
-				POINTER_ABSOLUTE, 0, 2, valuators);
-      
-  for(i=0; i<num_events; i++) mieqEnqueue (darwinPointer,&darwinEvents[i]);
-  DarwinPokeEQ();
+    //DEBUG_LOG("Pointer (%f, %f), Valuators: {%d,%d,%d,%d,%d}\n", pointer_x, pointer_y,
+    //          valuators[0], valuators[1], valuators[2], valuators[3], valuators[4]);
 }
 
-void DarwinSendKeyboardEvents(int ev_type, int keycode) {
-  int i, num_events;
-  if (old_flags == 0 && darwinSyncKeymap && darwinKeymapFile == NULL) {
-    /* See if keymap has changed. */
+void DarwinSendPointerEvents(DeviceIntPtr pDev, int ev_type, int ev_button, float pointer_x, float pointer_y, 
+			     float pressure, float tilt_x, float tilt_y) {
+	static int darwinFakeMouseButtonDown = 0;
+	int i, num_events;
+    ScreenPtr screen;
+    int valuators[5];
+	
+    //DEBUG_LOG("x=%f, y=%f, p=%f, tx=%f, ty=%f\n", pointer_x, pointer_y, pressure, tilt_x, tilt_y);
+    
+	if(!darwinEvents) {
+		DEBUG_LOG("DarwinSendPointerEvents called before darwinEvents was initialized\n");
+		return;
+	}
+
+    screen = miPointerGetScreen(pDev);
+    if(!screen) {
+        DEBUG_LOG("DarwinSendPointerEvents called before screen was initialized\n");
+        return;
+    }
 
-    static unsigned int last_seed;
-    unsigned int this_seed;
+    /* Handle fake click */
+	if (ev_type == ButtonPress && darwinFakeButtons && ev_button == 1) {
+        if(darwinFakeMouseButtonDown != 0) {
+            /* We're currently "down" with another button, so release it first */
+            DarwinSendPointerEvents(pDev, ButtonRelease, darwinFakeMouseButtonDown, pointer_x, pointer_y, pressure, tilt_x, tilt_y);
+            darwinFakeMouseButtonDown=0;
+        }
+		if (darwin_modifier_flags & darwinFakeMouse2Mask) {
+            ev_button = 2;
+			darwinFakeMouseButtonDown = 2;
+            DarwinUpdateModKeys(darwin_modifier_flags & ~darwinFakeMouse2Mask);
+		} else if (darwin_modifier_flags & darwinFakeMouse3Mask) {
+            ev_button = 3;
+			darwinFakeMouseButtonDown = 3;
+            DarwinUpdateModKeys(darwin_modifier_flags & ~darwinFakeMouse3Mask);
+		}
+	}
+
+	if (ev_type == ButtonRelease && ev_button == 1) {
+        if(darwinFakeMouseButtonDown) {
+            ev_button = darwinFakeMouseButtonDown;
+        }
 
-    this_seed = QuartzSystemKeymapSeed();
-    if (this_seed != last_seed) {
-      last_seed = this_seed;
-      DarwinKeyboardReload(darwinKeyboard);
-    }
-  }
+        if(darwinFakeMouseButtonDown == 2) {
+            DarwinUpdateModKeys(darwin_modifier_flags & ~darwinFakeMouse2Mask);
+        } else if(darwinFakeMouseButtonDown == 3) {
+            DarwinUpdateModKeys(darwin_modifier_flags & ~darwinFakeMouse3Mask);
+        }
+
+        darwinFakeMouseButtonDown = 0;
+	}
 
-  num_events = GetKeyboardEvents(darwinEvents, darwinKeyboard, ev_type, keycode + MIN_KEYCODE);
-  for(i=0; i<num_events; i++) mieqEnqueue(darwinKeyboard,&darwinEvents[i]);
-  DarwinPokeEQ();
+    DarwinPrepareValuators(pDev, valuators, screen, pointer_x, pointer_y, pressure, tilt_x, tilt_y);
+    darwinEvents_lock(); {
+        num_events = GetPointerEvents(darwinEvents, pDev, ev_type, ev_button, 
+                                      POINTER_ABSOLUTE, 0, pDev==darwinTabletCurrent?5:2, valuators);
+        for(i=0; i<num_events; i++) mieqEnqueue (pDev, darwinEvents[i].event);
+        DarwinPokeEQ();
+    } darwinEvents_unlock();
 }
 
-/* Send the appropriate number of button 4 / 5 clicks to emulate scroll wheel */
-void DarwinSendScrollEvents(float count, int pointer_x, int pointer_y) {
-  int i;
-  int ev_button = count > 0.0f ? 4 : 5;
-  int valuators[2] = {pointer_x, pointer_y};
-
-  for (count = fabs(count); count > 0.0; count = count - 1.0f) {
-    int num_events = GetPointerEvents(darwinEvents, darwinPointer, ButtonPress, ev_button, 
-				      POINTER_ABSOLUTE, 0, 2, valuators);
-    for(i=0; i<num_events; i++) mieqEnqueue(darwinPointer,&darwinEvents[i]);
-    num_events = GetPointerEvents(darwinEvents, darwinPointer, ButtonRelease, ev_button, 
-				      POINTER_ABSOLUTE, 0, 2, valuators);
-    for(i=0; i<num_events; i++) mieqEnqueue(darwinPointer,&darwinEvents[i]);
-  }
-  DarwinPokeEQ();
+void DarwinSendKeyboardEvents(int ev_type, int keycode) {
+	int i, num_events;
+
+	if(!darwinEvents) {
+		DEBUG_LOG("DarwinSendKeyboardEvents called before darwinEvents was initialized\n");
+		return;
+	}
+
+    darwinEvents_lock(); {
+        num_events = GetKeyboardEvents(darwinEvents, darwinKeyboard, ev_type, keycode + MIN_KEYCODE);
+        for(i=0; i<num_events; i++) mieqEnqueue(darwinKeyboard,darwinEvents[i].event);
+        DarwinPokeEQ();
+    } darwinEvents_unlock();
+}
+
+void DarwinSendProximityEvents(int ev_type, float pointer_x, float pointer_y) {
+	int i, num_events;
+    ScreenPtr screen;
+    DeviceIntPtr pDev = darwinTabletCurrent;
+    int valuators[5];
+
+	DEBUG_LOG("DarwinSendProximityEvents(%d, %f, %f)\n", ev_type, pointer_x, pointer_y);
+
+	if(!darwinEvents) {
+		DEBUG_LOG("DarwinSendProximityEvents called before darwinEvents was initialized\n");
+		return;
+	}
+    
+    screen = miPointerGetScreen(pDev);
+    if(!screen) {
+        DEBUG_LOG("DarwinSendPointerEvents called before screen was initialized\n");
+        return;
+    }    
+
+    DarwinPrepareValuators(pDev, valuators, screen, pointer_x, pointer_y, 0.0f, 0.0f, 0.0f);
+    darwinEvents_lock(); {
+        num_events = GetProximityEvents(darwinEvents, pDev, ev_type,
+                                        0, 5, valuators);
+        for(i=0; i<num_events; i++) mieqEnqueue (pDev,darwinEvents[i].event);
+        DarwinPokeEQ();
+    } darwinEvents_unlock();
+}
+
+
+/* Send the appropriate number of button clicks to emulate scroll wheel */
+void DarwinSendScrollEvents(float count_x, float count_y, 
+							float pointer_x, float pointer_y, 
+			    			float pressure, float tilt_x, float tilt_y) {
+	if(!darwinEvents) {
+		DEBUG_LOG("DarwinSendScrollEvents called before darwinEvents was initialized\n");
+		return;
+	}
+
+	int sign_x = count_x > 0.0f ? SCROLLWHEELLEFTFAKE : SCROLLWHEELRIGHTFAKE;
+	int sign_y = count_y > 0.0f ? SCROLLWHEELUPFAKE : SCROLLWHEELDOWNFAKE;
+	count_x = fabs(count_x);
+	count_y = fabs(count_y);
+	
+	while ((count_x > 0.0f) || (count_y > 0.0f)) {
+		if (count_x > 0.0f) {
+			DarwinSendPointerEvents(darwinPointer, ButtonPress, sign_x, pointer_x, pointer_y, pressure, tilt_x, tilt_y);
+			DarwinSendPointerEvents(darwinPointer, ButtonRelease, sign_x, pointer_x, pointer_y, pressure, tilt_x, tilt_y);
+			count_x = count_x - 1.0f;
+		}
+		if (count_y > 0.0f) {
+			DarwinSendPointerEvents(darwinPointer, ButtonPress, sign_y, pointer_x, pointer_y, pressure, tilt_x, tilt_y);
+			DarwinSendPointerEvents(darwinPointer, ButtonRelease, sign_y, pointer_x, pointer_y, pressure, tilt_x, tilt_y);
+			count_y = count_y - 1.0f;
+		}
+	}
 }
 
 /* Send the appropriate KeyPress/KeyRelease events to GetKeyboardEvents to
    reflect changing modifier flags (alt, control, meta, etc) */
 void DarwinUpdateModKeys(int flags) {
-  DarwinUpdateModifiers(KeyRelease, old_flags & ~flags);
-  DarwinUpdateModifiers(KeyPress, ~old_flags & flags);
-  old_flags = flags;
+	DarwinUpdateModifiers(KeyRelease, darwin_modifier_flags & ~flags);
+	DarwinUpdateModifiers(KeyPress, ~darwin_modifier_flags & flags);
+	darwin_modifier_flags = flags;
+}
+
+/*
+ * DarwinSendDDXEvent
+ *  Send the X server thread a message by placing it on the event queue.
+ */
+void DarwinSendDDXEvent(int type, int argc, ...) {
+    xEvent xe;
+    INT32 *argv;
+    int i, max_args;
+    va_list args;
+
+    memset(&xe, 0, sizeof(xe));
+    xe.u.u.type = type;
+    xe.u.clientMessage.u.l.type = type;
+
+    argv = &xe.u.clientMessage.u.l.longs0;
+    max_args = 4;
+
+    if (argc > 0 && argc <= max_args) {
+        va_start (args, argc);
+        for (i = 0; i < argc; i++)
+            argv[i] = (int) va_arg (args, int);
+        va_end (args);
+    }
+
+    darwinEvents_lock(); {
+        mieqEnqueue(darwinPointer, &xe);
+        DarwinPokeEQ();
+    } darwinEvents_unlock();
 }