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diff --git a/xorg-server/hw/xwin/winmouse.c b/xorg-server/hw/xwin/winmouse.c
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+/*
+ *Copyright (C) 1994-2000 The XFree86 Project, Inc. All Rights Reserved.
+ *
+ *Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ *"Software"), to deal in the Software without restriction, including
+ *without limitation the rights to use, copy, modify, merge, publish,
+ *distribute, sublicense, and/or sell copies of the Software, and to
+ *permit persons to whom the Software is furnished to do so, subject to
+ *the following conditions:
+ *
+ *The above copyright notice and this permission notice shall be
+ *included in all copies or substantial portions of the Software.
+ *
+ *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *NONINFRINGEMENT. IN NO EVENT SHALL THE XFREE86 PROJECT BE LIABLE FOR
+ *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+ *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ *Except as contained in this notice, the name of the XFree86 Project
+ *shall not be used in advertising or otherwise to promote the sale, use
+ *or other dealings in this Software without prior written authorization
+ *from the XFree86 Project.
+ *
+ * Authors: Dakshinamurthy Karra
+ * Suhaib M Siddiqi
+ * Peter Busch
+ * Harold L Hunt II
+ */
+
+#ifdef HAVE_XWIN_CONFIG_H
+#include <xwin-config.h>
+#endif
+#include "win.h"
+
+#if defined(XFree86Server) && defined(XINPUT)
+#include "inputstr.h"
+
+/* Peek the internal button mapping */
+static CARD8 const *g_winMouseButtonMap = NULL;
+#endif
+
+
+/*
+ * Local prototypes
+ */
+
+static void
+winMouseCtrl (DeviceIntPtr pDevice, PtrCtrl *pCtrl);
+
+
+static void
+winMouseCtrl (DeviceIntPtr pDevice, PtrCtrl *pCtrl)
+{
+}
+
+
+/*
+ * See Porting Layer Definition - p. 18
+ * This is known as a DeviceProc
+ */
+
+int
+winMouseProc (DeviceIntPtr pDeviceInt, int iState)
+{
+ int lngMouseButtons, i;
+ int lngWheelEvents = 2;
+ CARD8 *map;
+ DevicePtr pDevice = (DevicePtr) pDeviceInt;
+
+ switch (iState)
+ {
+ case DEVICE_INIT:
+ /* Get number of mouse buttons */
+ lngMouseButtons = GetSystemMetrics(SM_CMOUSEBUTTONS);
+
+ /* Mapping of windows events to X events:
+ * LEFT:1 MIDDLE:2 RIGHT:3
+ * SCROLL_UP:4 SCROLL_DOWN:5
+ * XBUTTON 1:6 XBUTTON 2:7 ...
+ *
+ * To map scroll wheel correctly we need at least the 3 normal buttons
+ */
+ if (lngMouseButtons < 3)
+ lngMouseButtons = 3;
+ winMsg(X_PROBED, "%d mouse buttons found\n", lngMouseButtons);
+
+ /* allocate memory:
+ * number of buttons + 2x mouse wheel event + 1 extra (offset for map)
+ */
+ map = malloc(sizeof(CARD8) * (lngMouseButtons + lngWheelEvents + 1));
+
+ /* initalize button map */
+ map[0] = 0;
+ for (i=1; i <= lngMouseButtons + lngWheelEvents; i++)
+ map[i] = i;
+ InitPointerDeviceStruct (pDevice,
+ map,
+ lngMouseButtons + lngWheelEvents,
+ GetMotionHistory,
+ winMouseCtrl,
+ GetMotionHistorySize(),
+ 2);
+ free(map);
+
+#if defined(XFree86Server) && defined(XINPUT)
+ g_winMouseButtonMap = pDeviceInt->button->map;
+#endif
+ break;
+
+ case DEVICE_ON:
+ pDevice->on = TRUE;
+ break;
+
+ case DEVICE_CLOSE:
+#if defined(XFree86Server) && defined(XINPUT)
+ g_winMouseButtonMap = NULL;
+#endif
+ case DEVICE_OFF:
+ pDevice->on = FALSE;
+ break;
+ }
+ return Success;
+}
+
+
+/* Handle the mouse wheel */
+int
+winMouseWheel (ScreenPtr pScreen, int iDeltaZ)
+{
+ winScreenPriv(pScreen);
+ int button; /* Button4 or Button5 */
+
+ /* Button4 = WheelUp */
+ /* Button5 = WheelDown */
+
+ /* Do we have any previous delta stored? */
+ if ((pScreenPriv->iDeltaZ > 0
+ && iDeltaZ > 0)
+ || (pScreenPriv->iDeltaZ < 0
+ && iDeltaZ < 0))
+ {
+ /* Previous delta and of same sign as current delta */
+ iDeltaZ += pScreenPriv->iDeltaZ;
+ pScreenPriv->iDeltaZ = 0;
+ }
+ else
+ {
+ /*
+ * Previous delta of different sign, or zero.
+ * We will set it to zero for either case,
+ * as blindly setting takes just as much time
+ * as checking, then setting if necessary :)
+ */
+ pScreenPriv->iDeltaZ = 0;
+ }
+
+ /*
+ * Only process this message if the wheel has moved further than
+ * WHEEL_DELTA
+ */
+ if (iDeltaZ >= WHEEL_DELTA || (-1 * iDeltaZ) >= WHEEL_DELTA)
+ {
+ pScreenPriv->iDeltaZ = 0;
+
+ /* Figure out how many whole deltas of the wheel we have */
+ iDeltaZ /= WHEEL_DELTA;
+ }
+ else
+ {
+ /*
+ * Wheel has not moved past WHEEL_DELTA threshold;
+ * we will store the wheel delta until the threshold
+ * has been reached.
+ */
+ pScreenPriv->iDeltaZ = iDeltaZ;
+ return 0;
+ }
+
+ /* Set the button to indicate up or down wheel delta */
+ if (iDeltaZ > 0)
+ {
+ button = Button4;
+ }
+ else
+ {
+ button = Button5;
+ }
+
+ /*
+ * Flip iDeltaZ to positive, if negative,
+ * because always need to generate a *positive* number of
+ * button clicks for the Z axis.
+ */
+ if (iDeltaZ < 0)
+ {
+ iDeltaZ *= -1;
+ }
+
+ /* Generate X input messages for each wheel delta we have seen */
+ while (iDeltaZ--)
+ {
+ /* Push the wheel button */
+ winMouseButtonsSendEvent (ButtonPress, button);
+
+ /* Release the wheel button */
+ winMouseButtonsSendEvent (ButtonRelease, button);
+ }
+
+ return 0;
+}
+
+
+/*
+ * Enqueue a mouse button event
+ */
+
+void
+winMouseButtonsSendEvent (int iEventType, int iButton)
+{
+ xEvent xCurrentEvent;
+
+ /* Load an xEvent and enqueue the event */
+ xCurrentEvent.u.u.type = iEventType;
+#if defined(XFree86Server) && defined(XINPUT)
+ if (g_winMouseButtonMap)
+ xCurrentEvent.u.u.detail = g_winMouseButtonMap[iButton];
+ else
+#endif
+ xCurrentEvent.u.u.detail = iButton;
+ xCurrentEvent.u.keyButtonPointer.time
+ = g_c32LastInputEventTime = GetTickCount ();
+ mieqEnqueue (&xCurrentEvent);
+}
+
+
+/*
+ * Decide what to do with a Windows mouse message
+ */
+
+int
+winMouseButtonsHandle (ScreenPtr pScreen,
+ int iEventType, int iButton,
+ WPARAM wParam)
+{
+ winScreenPriv(pScreen);
+ winScreenInfo *pScreenInfo = pScreenPriv->pScreenInfo;
+
+ /* Send button events right away if emulate 3 buttons is off */
+ if (pScreenInfo->iE3BTimeout == WIN_E3B_OFF)
+ {
+ /* Emulate 3 buttons is off, send the button event */
+ winMouseButtonsSendEvent (iEventType, iButton);
+ return 0;
+ }
+
+ /* Emulate 3 buttons is on, let the fun begin */
+ if (iEventType == ButtonPress
+ && pScreenPriv->iE3BCachedPress == 0
+ && !pScreenPriv->fE3BFakeButton2Sent)
+ {
+ /*
+ * Button was pressed, no press is cached,
+ * and there is no fake button 2 release pending.
+ */
+
+ /* Store button press type */
+ pScreenPriv->iE3BCachedPress = iButton;
+
+ /*
+ * Set a timer to send this button press if the other button
+ * is not pressed within the timeout time.
+ */
+ SetTimer (pScreenPriv->hwndScreen,
+ WIN_E3B_TIMER_ID,
+ pScreenInfo->iE3BTimeout,
+ NULL);
+ }
+ else if (iEventType == ButtonPress
+ && pScreenPriv->iE3BCachedPress != 0
+ && pScreenPriv->iE3BCachedPress != iButton
+ && !pScreenPriv->fE3BFakeButton2Sent)
+ {
+ /*
+ * Button press is cached, other button was pressed,
+ * and there is no fake button 2 release pending.
+ */
+
+ /* Mouse button was cached and other button was pressed */
+ KillTimer (pScreenPriv->hwndScreen, WIN_E3B_TIMER_ID);
+ pScreenPriv->iE3BCachedPress = 0;
+
+ /* Send fake middle button */
+ winMouseButtonsSendEvent (ButtonPress, Button2);
+
+ /* Indicate that a fake middle button event was sent */
+ pScreenPriv->fE3BFakeButton2Sent = TRUE;
+ }
+ else if (iEventType == ButtonRelease
+ && pScreenPriv->iE3BCachedPress == iButton)
+ {
+ /*
+ * Cached button was released before timer ran out,
+ * and before the other mouse button was pressed.
+ */
+ KillTimer (pScreenPriv->hwndScreen, WIN_E3B_TIMER_ID);
+ pScreenPriv->iE3BCachedPress = 0;
+
+ /* Send cached press, then send release */
+ winMouseButtonsSendEvent (ButtonPress, iButton);
+ winMouseButtonsSendEvent (ButtonRelease, iButton);
+ }
+ else if (iEventType == ButtonRelease
+ && pScreenPriv->fE3BFakeButton2Sent
+ && !(wParam & MK_LBUTTON)
+ && !(wParam & MK_RBUTTON))
+ {
+ /*
+ * Fake button 2 was sent and both mouse buttons have now been released
+ */
+ pScreenPriv->fE3BFakeButton2Sent = FALSE;
+
+ /* Send middle mouse button release */
+ winMouseButtonsSendEvent (ButtonRelease, Button2);
+ }
+ else if (iEventType == ButtonRelease
+ && pScreenPriv->iE3BCachedPress == 0
+ && !pScreenPriv->fE3BFakeButton2Sent)
+ {
+ /*
+ * Button was release, no button is cached,
+ * and there is no fake button 2 release is pending.
+ */
+ winMouseButtonsSendEvent (ButtonRelease, iButton);
+ }
+
+ return 0;
+}