9db851c22d
added SpriteRecs for MPX devices changed sprite dependency and added MPX functionality to parts of events.c (ConfineToShape, PostNewCursor, XineramaCheckMotion, CheckMotion, XineramaChangeToCursor, ChangeToCursor, CheckPhysLimits, PointerConfinedToScreen) added DeviceIntRec param to GetSpritePosition(). This required some minor changes in ddx, xtest, xkb and xfixes. mi: changed miPointer to pointer instead of static struct.
262 lines
8.5 KiB
C
262 lines
8.5 KiB
C
/*
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*
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Copyright 1990, 1998 The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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*
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* Author: Keith Packard, MIT X Consortium
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*/
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#ifdef MPX
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/*
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* MPX additions:
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* Copyright © 2006 Peter Hutterer
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* License see above.
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* Author: Peter Hutterer <peter@cs.unisa.edu.au>
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*
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*/
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#endif
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/*
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* mieq.c
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*
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* Machine independent event queue
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*
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*/
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#if HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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# define NEED_EVENTS
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# include <X11/X.h>
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# include <X11/Xmd.h>
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# include <X11/Xproto.h>
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# include "misc.h"
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# include "windowstr.h"
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# include "pixmapstr.h"
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# include "inputstr.h"
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# include "mi.h"
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# include "mipointer.h"
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# include "scrnintstr.h"
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# include <X11/extensions/XI.h>
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# include <X11/extensions/XIproto.h>
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# include "extinit.h"
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# include "exglobals.h"
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#define QUEUE_SIZE 256
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typedef struct _Event {
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xEvent event[7];
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int nevents;
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ScreenPtr pScreen;
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DeviceIntPtr pDev; /* device this event _originated_ from */
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} EventRec, *EventPtr;
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typedef struct _EventQueue {
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HWEventQueueType head, tail; /* long for SetInputCheck */
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CARD32 lastEventTime; /* to avoid time running backwards */
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int lastMotion; /* device ID if last event motion? */
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EventRec events[QUEUE_SIZE]; /* static allocation for signals */
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ScreenPtr pEnqueueScreen; /* screen events are being delivered to */
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ScreenPtr pDequeueScreen; /* screen events are being dispatched to */
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} EventQueueRec, *EventQueuePtr;
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static EventQueueRec miEventQueue;
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Bool
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mieqInit()
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{
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miEventQueue.head = miEventQueue.tail = 0;
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miEventQueue.lastEventTime = GetTimeInMillis ();
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miEventQueue.lastMotion = FALSE;
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miEventQueue.pEnqueueScreen = screenInfo.screens[0];
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miEventQueue.pDequeueScreen = miEventQueue.pEnqueueScreen;
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SetInputCheck(&miEventQueue.head, &miEventQueue.tail);
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return TRUE;
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}
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/*
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* Must be reentrant with ProcessInputEvents. Assumption: mieqEnqueue
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* will never be interrupted. If this is called from both signal
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* handlers and regular code, make sure the signal is suspended when
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* called from regular code.
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*/
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void
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mieqEnqueue(DeviceIntPtr pDev, xEvent *e)
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{
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HWEventQueueType oldtail = miEventQueue.tail, newtail;
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int isMotion = 0;
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deviceValuator *v = (deviceValuator *) e;
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EventPtr laste = &miEventQueue.events[oldtail - 1];
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deviceKeyButtonPointer *lastkbp = (deviceKeyButtonPointer *)
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&laste->event[0];
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#ifdef MPX
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/* avoid merging events from different devices */
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if (e->u.u.type == MotionNotify && pDev->isMPDev)
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isMotion = pDev->id;
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else
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#endif
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if (e->u.u.type == MotionNotify)
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isMotion = inputInfo.pointer->id;
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else if (e->u.u.type == DeviceMotionNotify)
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isMotion = pDev->id;
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/* We silently steal valuator events: just tack them on to the last
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* motion event they need to be attached to. Sigh. */
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if (e->u.u.type == DeviceValuator) {
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if (laste->nevents > 6) {
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ErrorF("mieqEnqueue: more than six valuator events; dropping.\n");
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return;
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}
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if (oldtail == miEventQueue.head ||
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!(lastkbp->type == DeviceMotionNotify ||
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lastkbp->type == DeviceButtonPress ||
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lastkbp->type == DeviceButtonRelease) ||
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((lastkbp->deviceid & DEVICE_BITS) !=
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(v->deviceid & DEVICE_BITS))) {
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ErrorF("mieqEnequeue: out-of-order valuator event; dropping.\n");
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return;
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}
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memcpy(&(laste->event[laste->nevents++]), e, sizeof(xEvent));
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return;
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}
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if (isMotion && isMotion == miEventQueue.lastMotion &&
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oldtail != miEventQueue.head) {
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if (oldtail == 0)
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oldtail = QUEUE_SIZE;
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oldtail = oldtail - 1;
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}
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else {
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newtail = oldtail + 1;
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if (newtail == QUEUE_SIZE)
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newtail = 0;
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/* Toss events which come in late. Usually this means your server's
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* stuck in an infinite loop somewhere, but SIGIO is still getting
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* handled. */
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if (newtail == miEventQueue.head) {
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ErrorF("tossed event which came in late\n");
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return;
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}
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miEventQueue.tail = newtail;
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}
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memcpy(&(miEventQueue.events[oldtail].event[0]), e, sizeof(xEvent));
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miEventQueue.events[oldtail].nevents = 1;
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/* Make sure that event times don't go backwards - this
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* is "unnecessary", but very useful. */
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if (e->u.keyButtonPointer.time < miEventQueue.lastEventTime &&
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miEventQueue.lastEventTime - e->u.keyButtonPointer.time < 10000)
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miEventQueue.events[oldtail].event[0].u.keyButtonPointer.time =
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miEventQueue.lastEventTime;
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miEventQueue.lastEventTime =
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miEventQueue.events[oldtail].event[0].u.keyButtonPointer.time;
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miEventQueue.events[oldtail].pScreen = miEventQueue.pEnqueueScreen;
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miEventQueue.events[oldtail].pDev = pDev;
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miEventQueue.lastMotion = isMotion;
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}
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void
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mieqSwitchScreen(ScreenPtr pScreen, Bool fromDIX)
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{
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miEventQueue.pEnqueueScreen = pScreen;
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if (fromDIX)
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miEventQueue.pDequeueScreen = pScreen;
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}
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/* Call this from ProcessInputEvents(). */
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void
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mieqProcessInputEvents()
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{
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EventRec *e = NULL;
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int x = 0, y = 0;
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DeviceIntPtr dev = NULL;
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while (miEventQueue.head != miEventQueue.tail) {
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if (screenIsSaved == SCREEN_SAVER_ON)
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SaveScreens (SCREEN_SAVER_OFF, ScreenSaverReset);
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e = &miEventQueue.events[miEventQueue.head];
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/* Assumption - screen switching can only occur on motion events. */
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if (e->pScreen != miEventQueue.pDequeueScreen) {
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miEventQueue.pDequeueScreen = e->pScreen;
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x = e->event[0].u.keyButtonPointer.rootX;
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y = e->event[0].u.keyButtonPointer.rootY;
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if (miEventQueue.head == QUEUE_SIZE - 1)
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miEventQueue.head = 0;
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else
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++miEventQueue.head;
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NewCurrentScreen (miEventQueue.pDequeueScreen, x, y);
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}
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else {
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if (miEventQueue.head == QUEUE_SIZE - 1)
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miEventQueue.head = 0;
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else
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++miEventQueue.head;
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/* If this is a core event, make sure our keymap, et al, is
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* changed to suit. */
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if (e->event[0].u.u.type == KeyPress ||
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e->event[0].u.u.type == KeyRelease) {
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SwitchCoreKeyboard(e->pDev);
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dev = inputInfo.keyboard;
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}
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else if (e->event[0].u.u.type == MotionNotify ||
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e->event[0].u.u.type == ButtonPress ||
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e->event[0].u.u.type == ButtonRelease) {
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#ifdef MPX
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if (!e->pDev->isMPDev)
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#endif
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SwitchCorePointer(e->pDev);
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dev = inputInfo.pointer;
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}
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else {
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dev = e->pDev;
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}
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#ifdef MPX
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/* MPX devices send both core and Xi events.
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* Use dev to get the correct processing function but supply
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* e->pDev to pass the correct device
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*/
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if (e->pDev->isMPDev)
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dev->public.processInputProc(e->event, e->pDev, e->nevents);
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else
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#endif
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dev->public.processInputProc(e->event, dev, e->nevents);
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}
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#ifdef MPX
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/* Update the sprite now. Next event may be from different device. */
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if (e->event[0].u.u.type == MotionNotify &&
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(e->pDev->isMPDev || e->pDev->coreEvents))
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{
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miPointerUpdateSprite(e->pDev);
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}
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#endif
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}
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}
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