/* $XConsortium: sunMouse.c,v 5.21 94/04/17 20:29:47 kaleb Exp $ */ /*- * Copyright (c) 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 X Consortium not be used in advertising or publicity pertaining to distribution of the software without specific prior written permission. Sun and X Consortium 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. ********************************************************/ /* * Modified from hpcMouse.c of Xhpc */ /* * 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. */ #define NEED_EVENTS #include "mi.h" #include "dreamcast.h" #include static Bool dreamcastCursorOffScreen(ScreenPtr *, int *, int *); static void dreamcastCrossScreen(ScreenPtr, Bool); static void dreamcastWarpCursor(ScreenPtr, int, int); miPointerScreenFuncRec dreamcastPointerScreenFuncs = { dreamcastCursorOffScreen, dreamcastCrossScreen, dreamcastWarpCursor, }; /* * dreamcastMouseCtrl -- * 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. */ static void dreamcastMouseCtrl(DeviceIntPtr device, PtrCtrl *ctrl) { } /* * dreamcastMouseProc -- * Handle the initialization, etc. of a mouse * * Results: * none. * * Side Effects: */ int dreamcastMouseProc(device, what) DeviceIntPtr device; /* Mouse to play with */ int what; /* What to do with it */ { DevicePtr pMouse = (DevicePtr) device; BYTE map[7]; switch (what) { case DEVICE_INIT: if (pMouse != LookupPointerDevice()) { dreamcastErrorF (("Cannot open non-system mouse")); return !Success; } if (dreamcastPtrPriv.fd == -1) return !Success; pMouse->devicePrivate = (pointer) &dreamcastPtrPriv; pMouse->on = FALSE; map[1] = 1; map[2] = 2; map[3] = 3; map[4] = 2; map[5] = 4; map[6] = 5; InitPointerDeviceStruct( pMouse, map, 6, miPointerGetMotionEvents, dreamcastMouseCtrl, miPointerGetMotionBufferSize()); break; case DEVICE_ON: #ifdef WSMOUSEIO_SETVERSION { int version = WSMOUSE_EVENT_VERSION; if (ioctl(dreamcastPtrPriv.fd, WSMOUSEIO_SETVERSION, &version) == -1) { Error ("dreamcastMouseProc ioctl WSMOUSEIO_SETVERSION"); return !Success; } } #endif dreamcastPtrPriv.bmask = 0; AddEnabledDevice (dreamcastPtrPriv.fd); pMouse->on = TRUE; break; case DEVICE_CLOSE: break; case DEVICE_OFF: pMouse->on = FALSE; RemoveEnabledDevice (dreamcastPtrPriv.fd); break; } return Success; } /* * dreamcastMouseGetEvents -- * Return the events waiting in the wings for the given mouse. * * Results: * A pointer to an array of dreamcastEvents or (dreamcastEvent *)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. */ struct wscons_event* dreamcastMouseGetEvents (pPriv, pNumEvents, pAgain) dreamcastPtrPrivPtr pPriv; int* pNumEvents; Bool* pAgain; { int fd; int nBytes; /* number of bytes of events available. */ static dreamcastEvent evBuf[MAXEVENTS]; /* Buffer for dreamcastEvents */ fd = pPriv->fd; if ((nBytes = read (fd, (char *)evBuf, sizeof(evBuf))) == -1) { if (errno == EWOULDBLOCK) { *pNumEvents = 0; *pAgain = FALSE; } else { dreamcastError ("dreamcastMouseGetEvents read"); dreamcastFatalError (("Could not read from mouse")); } } else { *pNumEvents = nBytes / sizeof (dreamcastEvent); *pAgain = (nBytes == sizeof (evBuf)); } 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 (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; } /* * dreamcastMouseEnqueueEvent -- * Given a dreamcastEvent 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 dreamcastMouseEnqueueEvent (device, fe) DeviceIntPtr device; /* Mouse from which the event came */ dreamcastEvent *fe; /* Event to process */ { xEvent xE; dreamcastPtrPrivPtr pPriv; /* Private data for pointer */ unsigned long ptime; int x, y, bmask; pPriv = (dreamcastPtrPrivPtr)device->public.devicePrivate; ptime = xE.u.keyButtonPointer.time = TSTOMILLI(fe->time); /* * Mouse buttons start at 1. * * Sometimes we will get two events for a single button state change. * Should we get a button even which reflects the current state of * affairs, that event is discarded. In the button emulation case, we * may need to generate several events from one real event. * * The button emulation allows WIN-1 through WIN-5 to be used as * buttons one to five when the first real button is down. If other * real buttons are present, they are accounted for separately so that * lifting an emulated button will not cause a button up event if the * real button is down. If the WIN button is not down, a button down * event will be sent for the first button. If the first button is * pressed when just the WIN key is down, the button events will not * be sent. The allows you to move just the cursor on a touch screen. * Emulated buttons are only released when the keys are released. */ switch (fe->type) { case WSCONS_EVENT_MOUSE_UP: case WSCONS_EVENT_MOUSE_DOWN: /* * 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->value + 1; bmask = 1 << xE.u.u.detail; if (fe->type == WSCONS_EVENT_MOUSE_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 WSCONS_EVENT_MOUSE_DELTA_X: miPointerDeltaCursor (MouseAccelerate(device,fe->value),0,ptime); break; case WSCONS_EVENT_MOUSE_DELTA_Y: miPointerDeltaCursor (0,-MouseAccelerate(device,fe->value),ptime); break; case WSCONS_EVENT_MOUSE_DELTA_Z: /* Ignore for now. */ break; case WSCONS_EVENT_MOUSE_ABSOLUTE_X: miPointerPosition (&x, &y); miPointerAbsoluteCursor (fe->value, y, ptime); break; case WSCONS_EVENT_MOUSE_ABSOLUTE_Y: miPointerPosition (&x, &y); miPointerAbsoluteCursor (x, fe->value, ptime); break; case WSCONS_EVENT_MOUSE_ABSOLUTE_Z: break; default: dreamcastFatalError (("dreamcastMouseEnqueueEvent: unrecognized id\n")); break; } } static Bool dreamcastCursorOffScreen (pScreen, x, y) ScreenPtr *pScreen; int *x, *y; { int ret = FALSE; if (PointerConfinedToScreen()) return TRUE; return ret; } static void dreamcastCrossScreen(pScreen, entering) ScreenPtr pScreen; Bool entering; { dreamcastFbPtr pFb = dreamcastGetScreenFb(pScreen); if (pFb->EnterLeave) (*pFb->EnterLeave) (pScreen, entering ? 0 : 1); } static void dreamcastWarpCursor(pScreen, x, y) ScreenPtr pScreen; int x, y; { sigset_t newsigmask; (void) sigemptyset (&newsigmask); (void) sigaddset (&newsigmask, SIGIO); (void) sigprocmask (SIG_BLOCK, &newsigmask, (sigset_t *)NULL); miPointerWarpCursor (pScreen, x, y); (void) sigprocmask (SIG_UNBLOCK, &newsigmask, (sigset_t *)NULL); }