diff options
Diffstat (limited to 'nx-X11/programs/Xserver/hw/sun/sunMouse.c')
| -rw-r--r-- | nx-X11/programs/Xserver/hw/sun/sunMouse.c | 399 |
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 +} |