mi: Clean up CopyGetMasterEvent, re-use the memory.
Alloc an EventList once and then re-use instead of allocing a new event each time we need a master event. There's a trick included: because all the event processing handlers only take an xEvent, init a size 1 EventList and squash the events into this one. Events that have count > 1 must be squished into an xEvent array anyway before passing into the event handlers, so we don't lose anything here. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Acked-by: Daniel Stone <daniel@fooishbar.org>
This commit is contained in:
parent
0b4fef6337
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d281866b74
60
mi/mieq.c
60
mi/mieq.c
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@ -80,6 +80,7 @@ typedef struct _EventQueue {
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} EventQueueRec, *EventQueuePtr;
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static EventQueueRec miEventQueue;
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static EventListPtr masterEvents; /* for use in mieqProcessInputEvents */
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Bool
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mieqInit(void)
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@ -98,6 +99,17 @@ mieqInit(void)
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FatalError("Could not allocate event queue.\n");
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miEventQueue.events[i].events = evlist;
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}
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/* XXX: mE is just 1 event long, if we have Motion + Valuator they are
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* squashed into the first event to make passing it into the event
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* processing handlers easier. This should be fixed when the processing
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* handlers switch to EventListPtr instead of xEvent */
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masterEvents = InitEventList(1);
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if (!masterEvents)
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FatalError("Could not allocated MD event queue.\n");
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SetMinimumEventSize(masterEvents, 1,
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(1 + MAX_VALUATOR_EVENTS) * sizeof(xEvent));
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SetInputCheck(&miEventQueue.head, &miEventQueue.tail);
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return TRUE;
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}
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@ -275,28 +287,21 @@ ChangeDeviceID(DeviceIntPtr dev, xEvent* event)
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*/
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void
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CopyGetMasterEvent(DeviceIntPtr mdev, xEvent* original,
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xEvent** master, int count)
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EventListPtr master, int count)
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{
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if (count > 1) {
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*master = xcalloc(count, sizeof(xEvent));
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if (!*master)
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FatalError("[mi] No memory left for master event.\n");
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while(count--)
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{
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memcpy(&(*master)[count], &original[count], sizeof(xEvent));
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ChangeDeviceID(mdev, &(*master)[count]);
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}
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} else
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{
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int len = sizeof(xEvent);
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if (original->u.u.type == GenericEvent)
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len += GEV(original)->length * 4;
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*master = xalloc(len);
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if (!*master)
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FatalError("[mi] No memory left for master event.\n");
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memcpy(*master, original, len);
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ChangeDeviceID(mdev, *master);
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}
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int len = count * sizeof(xEvent);
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/* Assumption: GenericEvents always have count 1 */
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if (GEV(original)->type == GenericEvent)
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len += GEV(original)->length * 4;
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if (master->evlen < len)
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SetMinimumEventSize(master, 1, len);
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memcpy(master->event, original, len);
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while (count--)
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ChangeDeviceID(mdev, &master->event[count]);
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}
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/* Call this from ProcessInputEvents(). */
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@ -308,8 +313,7 @@ mieqProcessInputEvents(void)
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int x = 0, y = 0;
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int type, nevents, evlen, i;
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ScreenPtr screen;
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xEvent *event,
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*master_event = NULL;
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xEvent *event;
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DeviceIntPtr dev = NULL,
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master = NULL;
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@ -358,10 +362,7 @@ mieqProcessInputEvents(void)
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}
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else {
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if (master)
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CopyGetMasterEvent(master, event,
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&master_event, nevents);
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else
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master_event = NULL;
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CopyGetMasterEvent(master, event, masterEvents, nevents);
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/* If someone's registered a custom event handler, let them
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* steal it. */
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@ -370,19 +371,18 @@ mieqProcessInputEvents(void)
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handler(DequeueScreen(dev)->myNum, event, dev, nevents);
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if (master)
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handler(DequeueScreen(master)->myNum,
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master_event, master, nevents);
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masterEvents->event, master, nevents);
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} else
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{
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/* process slave first, then master */
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dev->public.processInputProc(event, dev, nevents);
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if (master)
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master->public.processInputProc(master_event, master,
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master->public.processInputProc(masterEvents->event, master,
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nevents);
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}
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xfree(event);
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xfree(master_event);
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}
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/* Update the sprite now. Next event may be from different device. */
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@ -42,13 +42,14 @@ THE USE OR PERFORMANCE OF THIS SOFTWARE.
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extern int DeviceValuator;
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static EventListPtr masterEvents = NULL;
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void
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XkbDDXFakeDeviceButton(DeviceIntPtr dev,Bool press,int button)
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{
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int * devVal;
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INT32 * evVal;
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xEvent events[2],
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*m_events = NULL; /* master dev */
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xEvent events[2];
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deviceKeyButtonPointer *btn;
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deviceValuator * val;
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int x,y;
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@ -107,18 +108,22 @@ DeviceIntPtr master = NULL;
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* cases, unless dev is both a keyboard and a mouse.
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*/
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if (!dev->isMaster && dev->u.master) {
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if (!masterEvents)
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{
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masterEvents = InitEventList(1);
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SetMinimumEventSize(masterEvents, 1, (1 + MAX_VALUATOR_EVENTS) * sizeof(xEvent));
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}
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master = dev->u.master;
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if (!IsPointerDevice(master))
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master = GetPairedDevice(dev->u.master);
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CopyGetMasterEvent(master, &events, &m_events, count);
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CopyGetMasterEvent(master, &events, masterEvents, count);
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}
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(*dev->public.processInputProc)((xEventPtr)btn, dev, count);
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if (master) {
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(*master->public.processInputProc)(m_events, master, count);
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xfree(m_events);
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(*master->public.processInputProc)(masterEvents->event, master, count);
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}
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return;
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}
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