/* $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 1.4 2003/11/17 22:20:36 dawes 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 }