Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1

Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:

Imported nx-X11-3.1.0-1.tar.gz
into Git repository

1 files changed, 399 insertions, 0 deletions

diff --git a/nx-X11/programs/Xserver/hw/sun/sunMouse.c b/nx-X11/programs/Xserver/hw/sun/sunMouse.c
new file mode 100644
index 000000000..aad46e3d7
--- /dev/null
+++ b/nx-X11/programs/Xserver/hw/sun/sunMouse.c
@@ -0,0 +1,399 @@
+/* $Xorg: sunMouse.c,v 1.3 2000/08/17 19:48:32 cpqbld Exp $ */
+/*-
+ * Copyright 1987 by the Regents of the University of California
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies.  The University of California
+ * makes no representations about the suitability of this
+ * software for any purpose.  It is provided "as is" without
+ * express or implied warranty.
+ */
+
+/************************************************************
+Copyright 1987 by Sun Microsystems, Inc. Mountain View, CA.
+
+                    All Rights Reserved
+
+Permission  to  use,  copy,  modify,  and  distribute   this
+software  and  its documentation for any purpose and without
+fee is hereby granted, provided that the above copyright no-
+tice  appear  in all copies and that both that copyright no-
+tice and this permission notice appear in  supporting  docu-
+mentation,  and  that the names of Sun or The Open Group
+not be used in advertising or publicity pertaining to 
+distribution  of  the software  without specific prior 
+written permission. Sun and The Open Group make no 
+representations about the suitability of this software for 
+any purpose. It is provided "as is" without any express or 
+implied warranty.
+
+SUN DISCLAIMS ALL WARRANTIES WITH REGARD TO  THIS  SOFTWARE,
+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FIT-
+NESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SUN BE  LI-
+ABLE  FOR  ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
+ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,  DATA  OR
+PROFITS,  WHETHER  IN  AN  ACTION OF CONTRACT, NEGLIGENCE OR
+OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION  WITH
+THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+********************************************************/
+/*
+ * Copyright 1991, 1992, 1993 Kaleb S. Keithley
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies.  Kaleb S. Keithley makes no 
+ * representations about the suitability of this software for 
+ * any purpose.  It is provided "as is" without express or 
+ * implied warranty.
+ */
+/* $XFree86: xc/programs/Xserver/hw/sun/sunMouse.c,v 1.3 2001/10/28 03:33:12 tsi Exp $ */
+
+#define NEED_EVENTS
+#include    "sun.h"
+#include    "mi.h"
+
+Bool sunActiveZaphod = TRUE;
+
+static Bool sunCursorOffScreen();
+static void sunCrossScreen();
+static void sunWarpCursor();
+
+miPointerScreenFuncRec sunPointerScreenFuncs = {
+    sunCursorOffScreen,
+    sunCrossScreen,
+    sunWarpCursor,
+};
+
+/*-
+ *-----------------------------------------------------------------------
+ * sunMouseCtrl --
+ *	Alter the control parameters for the mouse. Since acceleration
+ *	etc. is done from the PtrCtrl record in the mouse's device record,
+ *	there's nothing to do here.
+ *
+ * Results:
+ *	None.
+ *
+ * Side Effects:
+ *	None.
+ *
+ *-----------------------------------------------------------------------
+ */
+/*ARGSUSED*/
+static 
+void sunMouseCtrl (
+    DeviceIntPtr    device,
+    PtrCtrl*	    ctrl)
+{
+}
+
+/*-
+ *-----------------------------------------------------------------------
+ * sunMouseProc --
+ *	Handle the initialization, etc. of a mouse
+ *
+ * Results:
+ *	none.
+ *
+ * Side Effects:
+ *
+ * Note:
+ *	When using sunwindows, all input comes off a single fd, stored in the
+ *	global windowFd.  Therefore, only one device should be enabled and
+ *	disabled, even though the application still sees both mouse and
+ *	keyboard.  We have arbitrarily chosen to enable and disable windowFd
+ *	in the keyboard routine sunKbdProc rather than in sunMouseProc.
+ *
+ *-----------------------------------------------------------------------
+ */
+int sunMouseProc (
+    DeviceIntPtr  device,
+    int	    	  what)
+{
+    DevicePtr	  pMouse = (DevicePtr) device;
+    int	    	  format;
+    static int	  oformat;
+    BYTE    	  map[4];
+
+    switch (what) {
+	case DEVICE_INIT:
+	    if (pMouse != LookupPointerDevice()) {
+		ErrorF ("Cannot open non-system mouse");	
+		return !Success;
+	    }
+	    if (sunPtrPriv.fd == -1)
+		return !Success;
+	    pMouse->devicePrivate = (pointer) &sunPtrPriv;
+	    pMouse->on = FALSE;
+	    map[1] = 1;
+	    map[2] = 2;
+	    map[3] = 3;
+	    InitPointerDeviceStruct(
+		pMouse, map, 3, miPointerGetMotionEvents,
+ 		sunMouseCtrl, miPointerGetMotionBufferSize());
+	    break;
+
+	case DEVICE_ON:
+	    if (ioctl (sunPtrPriv.fd, VUIDGFORMAT, &oformat) == -1) {
+		Error ("sunMouseProc ioctl VUIDGFORMAT");
+		return !Success;
+	    }
+	    format = VUID_FIRM_EVENT;
+	    if (ioctl (sunPtrPriv.fd, VUIDSFORMAT, &format) == -1) {
+		Error ("sunMouseProc ioctl VUIDSFORMAT");
+		return !Success;
+	    }
+	    sunPtrPriv.bmask = 0;
+	    AddEnabledDevice (sunPtrPriv.fd);
+	    pMouse->on = TRUE;
+	    break;
+
+	case DEVICE_CLOSE:
+	    pMouse->on = FALSE;
+	    if (ioctl (sunPtrPriv.fd, VUIDSFORMAT, &oformat) == -1)
+		Error ("sunMouseProc ioctl VUIDSFORMAT");
+	    break;
+
+	case DEVICE_OFF:
+	    pMouse->on = FALSE;
+	    RemoveEnabledDevice (sunPtrPriv.fd);
+	    break;
+    }
+    return Success;
+}
+    
+/*-
+ *-----------------------------------------------------------------------
+ * sunMouseGetEvents --
+ *	Return the events waiting in the wings for the given mouse.
+ *
+ * Results:
+ *	A pointer to an array of Firm_events or (Firm_event *)0 if no events
+ *	The number of events contained in the array.
+ *	A boolean as to whether more events might be available.
+ *
+ * Side Effects:
+ *	None.
+ *-----------------------------------------------------------------------
+ */
+
+Firm_event* sunMouseGetEvents (
+    int		fd,
+    Bool	on,
+    int*	pNumEvents,
+    Bool*	pAgain)
+{
+    int	    	  nBytes;	    /* number of bytes of events available. */
+    static Firm_event	evBuf[MAXEVENTS];   /* Buffer for Firm_events */
+
+    if ((nBytes = read (fd, (char *)evBuf, sizeof(evBuf))) == -1) {
+	if (errno == EWOULDBLOCK) {
+	    *pNumEvents = 0;
+	    *pAgain = FALSE;
+	} else {
+	    Error ("sunMouseGetEvents read");
+	    FatalError ("Could not read from mouse");
+	}
+    } else {
+	if (on) {
+	    *pNumEvents = nBytes / sizeof (Firm_event);
+	    *pAgain = (nBytes == sizeof (evBuf));
+	} else {
+	    *pNumEvents = 0;
+	    *pAgain = FALSE;
+	}
+    }
+    return evBuf;
+}
+
+
+/*-
+ *-----------------------------------------------------------------------
+ * MouseAccelerate --
+ *	Given a delta and a mouse, return the acceleration of the delta.
+ *
+ * Results:
+ *	The corrected delta
+ *
+ * Side Effects:
+ *	None.
+ *
+ *-----------------------------------------------------------------------
+ */
+static short
+MouseAccelerate (device, delta)
+    DeviceIntPtr  device;
+    int	    	  delta;
+{
+    int  sgn = sign(delta);
+    PtrCtrl *pCtrl;
+    short ret;
+
+    delta = abs(delta);
+    pCtrl = &device->ptrfeed->ctrl;
+    if (delta > pCtrl->threshold) {
+	ret = 
+	    (short) sgn * 
+		(pCtrl->threshold + ((delta - pCtrl->threshold) * pCtrl->num) /
+		    pCtrl->den);
+    } else {
+	ret = (short) sgn * delta;
+    }
+    return ret;
+}
+
+/*-
+ *-----------------------------------------------------------------------
+ * sunMouseEnqueueEvent --
+ *	Given a Firm_event for a mouse, pass it off the the dix layer
+ *	properly converted...
+ *
+ * Results:
+ *	None.
+ *
+ * Side Effects:
+ *	The cursor may be redrawn...? devPrivate/x/y will be altered.
+ *
+ *-----------------------------------------------------------------------
+ */
+
+void sunMouseEnqueueEvent (
+    DeviceIntPtr  device,
+    Firm_event	  *fe)
+{
+    xEvent		xE;
+    sunPtrPrivPtr	pPriv;	/* Private data for pointer */
+    int			bmask;	/* Temporary button mask */
+    unsigned long	time;
+    int			x, y;
+
+    pPriv = (sunPtrPrivPtr)device->public.devicePrivate;
+
+    time = xE.u.keyButtonPointer.time = TVTOMILLI(fe->time);
+
+    switch (fe->id) {
+    case MS_LEFT:
+    case MS_MIDDLE:
+    case MS_RIGHT:
+	/*
+	 * A button changed state. Sometimes we will get two events
+	 * for a single state change. Should we get a button event which
+	 * reflects the current state of affairs, that event is discarded.
+	 *
+	 * Mouse buttons start at 1.
+	 */
+	xE.u.u.detail = (fe->id - MS_LEFT) + 1;
+	bmask = 1 << xE.u.u.detail;
+	if (fe->value == VKEY_UP) {
+	    if (pPriv->bmask & bmask) {
+		xE.u.u.type = ButtonRelease;
+		pPriv->bmask &= ~bmask;
+	    } else {
+		return;
+	    }
+	} else {
+	    if ((pPriv->bmask & bmask) == 0) {
+		xE.u.u.type = ButtonPress;
+		pPriv->bmask |= bmask;
+	    } else {
+		return;
+	    }
+	}
+	mieqEnqueue (&xE);
+	break;
+    case LOC_X_DELTA:
+	miPointerDeltaCursor (MouseAccelerate(device,fe->value),0,time);
+	break;
+    case LOC_Y_DELTA:
+	/*
+	 * For some reason, motion up generates a positive y delta
+	 * and motion down a negative delta, so we must subtract
+	 * here instead of add...
+	 */
+	miPointerDeltaCursor (0,-MouseAccelerate(device,fe->value),time);
+	break;
+    case LOC_X_ABSOLUTE:
+	miPointerPosition (&x, &y);
+	miPointerAbsoluteCursor (fe->value, y, time);
+	break;
+    case LOC_Y_ABSOLUTE:
+	miPointerPosition (&x, &y);
+	miPointerAbsoluteCursor (x, fe->value, time);
+	break;
+    default:
+	FatalError ("sunMouseEnqueueEvent: unrecognized id\n");
+	break;
+    }
+}
+
+/*ARGSUSED*/
+static Bool
+sunCursorOffScreen (pScreen, x, y)
+    ScreenPtr	*pScreen;
+    int		*x, *y;
+{
+    int	    index, ret = FALSE;
+    extern Bool PointerConfinedToScreen();
+
+    if (PointerConfinedToScreen()) return TRUE;
+    /*
+     * Active Zaphod implementation:
+     *    increment or decrement the current screen
+     *    if the x is to the right or the left of
+     *    the current screen.
+     */
+    if (sunActiveZaphod &&
+	screenInfo.numScreens > 1 && (*x >= (*pScreen)->width || *x < 0)) {
+	index = (*pScreen)->myNum;
+	if (*x < 0) {
+	    index = (index ? index : screenInfo.numScreens) - 1;
+	    *pScreen = screenInfo.screens[index];
+	    *x += (*pScreen)->width;
+	} else {
+	    *x -= (*pScreen)->width;
+	    index = (index + 1) % screenInfo.numScreens;
+	    *pScreen = screenInfo.screens[index];
+	}
+	ret = TRUE;
+    }
+    return ret;
+}
+
+static void
+sunCrossScreen (pScreen, entering)
+    ScreenPtr	pScreen;
+    Bool	entering;
+{
+    if (sunFbs[pScreen->myNum].EnterLeave)
+	(*sunFbs[pScreen->myNum].EnterLeave) (pScreen, entering ? 0 : 1);
+}
+
+static void
+sunWarpCursor (pScreen, x, y)
+    ScreenPtr	pScreen;
+    int		x, y;
+{
+#ifndef i386
+    sigset_t newsigmask;
+
+    (void) sigemptyset (&newsigmask);
+#ifdef SVR4
+    (void) sigaddset (&newsigmask, SIGPOLL);
+#else
+    (void) sigaddset (&newsigmask, SIGIO);
+#endif
+    (void) sigprocmask (SIG_BLOCK, &newsigmask, (sigset_t *)NULL);
+    miPointerWarpCursor (pScreen, x, y);
+    (void) sigprocmask (SIG_UNBLOCK, &newsigmask, (sigset_t *)NULL);
+#else
+    int oldmask;
+
+    oldmask = sigblock (sigmask (SIGIO));
+    miPointerWarpCursor (pScreen, x, y);
+    sigsetmask (oldmask);
+#endif
+}