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authorReinhard Tartler <siretart@tauware.de>2011-10-10 17:43:39 +0200
committerReinhard Tartler <siretart@tauware.de>2011-10-10 17:43:39 +0200
commitf4092abdf94af6a99aff944d6264bc1284e8bdd4 (patch)
tree2ac1c9cc16ceb93edb2c4382c088dac5aeafdf0f /nx-X11/programs/Xserver/hw/sun/sunMouse.c
parenta840692edc9c6d19cd7c057f68e39c7d95eb767d (diff)
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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
Diffstat (limited to 'nx-X11/programs/Xserver/hw/sun/sunMouse.c')
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+/* $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
+}