diff options
Diffstat (limited to 'xorg-server/mi/mieq.c')
| -rw-r--r-- | xorg-server/mi/mieq.c | 938 |
1 files changed, 469 insertions, 469 deletions
diff --git a/xorg-server/mi/mieq.c b/xorg-server/mi/mieq.c index f71e327ec..34d2277da 100644 --- a/xorg-server/mi/mieq.c +++ b/xorg-server/mi/mieq.c @@ -1,469 +1,469 @@ -/*
- *
-Copyright 1990, 1998 The Open Group
-
-Permission to use, copy, modify, distribute, and sell this software and its
-documentation for any purpose is hereby granted without fee, provided that
-the above copyright notice appear in all copies and that both that
-copyright notice and this permission notice appear in supporting
-documentation.
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
-AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-Except as contained in this notice, the name of The Open Group shall not be
-used in advertising or otherwise to promote the sale, use or other dealings
-in this Software without prior written authorization from The Open Group.
- *
- * Author: Keith Packard, MIT X Consortium
- */
-
-/*
- * mieq.c
- *
- * Machine independent event queue
- *
- */
-
-#if HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-# include <X11/X.h>
-# include <X11/Xmd.h>
-# include <X11/Xproto.h>
-# include "misc.h"
-# include "windowstr.h"
-# include "pixmapstr.h"
-# include "inputstr.h"
-# include "inpututils.h"
-# include "mi.h"
-# include "mipointer.h"
-# include "scrnintstr.h"
-# include <X11/extensions/XI.h>
-# include <X11/extensions/XIproto.h>
-# include <X11/extensions/geproto.h>
-# include "extinit.h"
-# include "exglobals.h"
-# include "eventstr.h"
-
-#ifdef DPMSExtension
-# include "dpmsproc.h"
-# include <X11/extensions/dpmsconst.h>
-#endif
-
-#define QUEUE_SIZE 512
-
-#define EnqueueScreen(dev) dev->spriteInfo->sprite->pEnqueueScreen
-#define DequeueScreen(dev) dev->spriteInfo->sprite->pDequeueScreen
-
-typedef struct _Event {
- InternalEvent* events;
- ScreenPtr pScreen;
- DeviceIntPtr pDev; /* device this event _originated_ from */
-} EventRec, *EventPtr;
-
-typedef struct _EventQueue {
- HWEventQueueType head, tail; /* long for SetInputCheck */
- CARD32 lastEventTime; /* to avoid time running backwards */
- int lastMotion; /* device ID if last event motion? */
- EventRec events[QUEUE_SIZE]; /* static allocation for signals */
- mieqHandler handlers[128]; /* custom event handler */
-} EventQueueRec, *EventQueuePtr;
-
-static EventQueueRec miEventQueue;
-
-#ifdef XQUARTZ
-#include <pthread.h>
-static pthread_mutex_t miEventQueueMutex = PTHREAD_MUTEX_INITIALIZER;
-
-extern BOOL serverRunning;
-extern pthread_mutex_t serverRunningMutex;
-extern pthread_cond_t serverRunningCond;
-
-static inline void wait_for_server_init(void) {
- /* If the server hasn't finished initializing, wait for it... */
- if(!serverRunning) {
- pthread_mutex_lock(&serverRunningMutex);
- while(!serverRunning)
- pthread_cond_wait(&serverRunningCond, &serverRunningMutex);
- pthread_mutex_unlock(&serverRunningMutex);
- }
-}
-#endif
-
-Bool
-mieqInit(void)
-{
- int i;
-
- miEventQueue.head = miEventQueue.tail = 0;
- miEventQueue.lastEventTime = GetTimeInMillis ();
- miEventQueue.lastMotion = FALSE;
- for (i = 0; i < 128; i++)
- miEventQueue.handlers[i] = NULL;
- for (i = 0; i < QUEUE_SIZE; i++)
- {
- if (miEventQueue.events[i].events == NULL) {
- InternalEvent* evlist = InitEventList(1);
- if (!evlist)
- FatalError("Could not allocate event queue.\n");
- miEventQueue.events[i].events = evlist;
- }
- }
-
- SetInputCheck(&miEventQueue.head, &miEventQueue.tail);
- return TRUE;
-}
-
-void
-mieqFini(void)
-{
- int i;
- for (i = 0; i < QUEUE_SIZE; i++)
- {
- if (miEventQueue.events[i].events != NULL) {
- FreeEventList(miEventQueue.events[i].events, 1);
- miEventQueue.events[i].events = NULL;
- }
- }
-}
-
-/*
- * Must be reentrant with ProcessInputEvents. Assumption: mieqEnqueue
- * will never be interrupted. If this is called from both signal
- * handlers and regular code, make sure the signal is suspended when
- * called from regular code.
- */
-
-void
-mieqEnqueue(DeviceIntPtr pDev, InternalEvent *e)
-{
- unsigned int oldtail = miEventQueue.tail;
- InternalEvent* evt;
- int isMotion = 0;
- int evlen;
- Time time;
-
-#ifdef XQUARTZ
- wait_for_server_init();
- pthread_mutex_lock(&miEventQueueMutex);
-#endif
-
- verify_internal_event(e);
-
- /* avoid merging events from different devices */
- if (e->any.type == ET_Motion)
- isMotion = pDev->id;
-
- if (isMotion && isMotion == miEventQueue.lastMotion &&
- oldtail != miEventQueue.head) {
- oldtail = (oldtail - 1) % QUEUE_SIZE;
- }
- else {
- static int stuck = 0;
- /* Toss events which come in late. Usually this means your server's
- * stuck in an infinite loop somewhere, but SIGIO is still getting
- * handled. */
- if (((oldtail + 1) % QUEUE_SIZE) == miEventQueue.head) {
- if (!stuck) {
- ErrorF("[mi] EQ overflowing. The server is probably stuck "
- "in an infinite loop.\n");
- xorg_backtrace();
- stuck = 1;
- }
-#ifdef XQUARTZ
- pthread_mutex_unlock(&miEventQueueMutex);
-#endif
- return;
- }
- stuck = 0;
- }
-
- evlen = e->any.length;
- evt = miEventQueue.events[oldtail].events;
- memcpy(evt, e, evlen);
-
- time = e->any.time;
- /* Make sure that event times don't go backwards - this
- * is "unnecessary", but very useful. */
- if (time < miEventQueue.lastEventTime &&
- miEventQueue.lastEventTime - time < 10000)
- e->any.time = miEventQueue.lastEventTime;
-
- miEventQueue.lastEventTime = evt->any.time;
- miEventQueue.events[oldtail].pScreen = pDev ? EnqueueScreen(pDev) : NULL;
- miEventQueue.events[oldtail].pDev = pDev;
-
- miEventQueue.lastMotion = isMotion;
- miEventQueue.tail = (oldtail + 1) % QUEUE_SIZE;
-#ifdef XQUARTZ
- pthread_mutex_unlock(&miEventQueueMutex);
-#endif
-}
-
-void
-mieqSwitchScreen(DeviceIntPtr pDev, ScreenPtr pScreen, Bool fromDIX)
-{
-#ifdef XQUARTZ
- pthread_mutex_lock(&miEventQueueMutex);
-#endif
- EnqueueScreen(pDev) = pScreen;
- if (fromDIX)
- DequeueScreen(pDev) = pScreen;
-#ifdef XQUARTZ
- pthread_mutex_unlock(&miEventQueueMutex);
-#endif
-}
-
-void
-mieqSetHandler(int event, mieqHandler handler)
-{
-#ifdef XQUARTZ
- pthread_mutex_lock(&miEventQueueMutex);
-#endif
- if (handler && miEventQueue.handlers[event])
- ErrorF("[mi] mieq: warning: overriding existing handler %p with %p for "
- "event %d\n", miEventQueue.handlers[event], handler, event);
-
- miEventQueue.handlers[event] = handler;
-#ifdef XQUARTZ
- pthread_mutex_unlock(&miEventQueueMutex);
-#endif
-}
-
-/**
- * Change the device id of the given event to the given device's id.
- */
-static void
-ChangeDeviceID(DeviceIntPtr dev, InternalEvent* event)
-{
- switch(event->any.type)
- {
- case ET_Motion:
- case ET_KeyPress:
- case ET_KeyRelease:
- case ET_ButtonPress:
- case ET_ButtonRelease:
- case ET_ProximityIn:
- case ET_ProximityOut:
- case ET_Hierarchy:
- case ET_DeviceChanged:
- event->device_event.deviceid = dev->id;
- break;
-#if XFreeXDGA
- case ET_DGAEvent:
- break;
-#endif
- case ET_RawKeyPress:
- case ET_RawKeyRelease:
- case ET_RawButtonPress:
- case ET_RawButtonRelease:
- case ET_RawMotion:
- event->raw_event.deviceid = dev->id;
- break;
- default:
- ErrorF("[mi] Unknown event type (%d), cannot change id.\n",
- event->any.type);
- }
-}
-
-static void
-FixUpEventForMaster(DeviceIntPtr mdev, DeviceIntPtr sdev,
- InternalEvent* original, InternalEvent *master)
-{
- verify_internal_event(original);
- verify_internal_event(master);
- /* Ensure chained button mappings, i.e. that the detail field is the
- * value of the mapped button on the SD, not the physical button */
- if (original->any.type == ET_ButtonPress ||
- original->any.type == ET_ButtonRelease)
- {
- int btn = original->device_event.detail.button;
- if (!sdev->button)
- return; /* Should never happen */
-
- master->device_event.detail.button = sdev->button->map[btn];
- }
-}
-
-/**
- * Copy the given event into master.
- * @param sdev The slave device the original event comes from
- * @param original The event as it came from the EQ
- * @param copy The event after being copied
- * @return The master device or NULL if the device is a floating slave.
- */
-DeviceIntPtr
-CopyGetMasterEvent(DeviceIntPtr sdev,
- InternalEvent* original, InternalEvent *copy)
-{
- DeviceIntPtr mdev;
- int len = original->any.length;
- int type = original->any.type;
- int mtype; /* which master type? */
-
- verify_internal_event(original);
-
- /* ET_XQuartz has sdev == NULL */
- if (!sdev || IsMaster(sdev) || IsFloating(sdev))
- return NULL;
-
-#if XFreeXDGA
- if (type == ET_DGAEvent)
- type = original->dga_event.subtype;
-#endif
-
- switch(type)
- {
- case ET_KeyPress:
- case ET_KeyRelease:
- mtype = MASTER_KEYBOARD;
- break;
- case ET_ButtonPress:
- case ET_ButtonRelease:
- case ET_Motion:
- case ET_ProximityIn:
- case ET_ProximityOut:
- mtype = MASTER_POINTER;
- break;
- default:
- mtype = MASTER_ATTACHED;
- break;
- }
-
- mdev = GetMaster(sdev, mtype);
- memcpy(copy, original, len);
- ChangeDeviceID(mdev, copy);
- FixUpEventForMaster(mdev, sdev, original, copy);
-
- return mdev;
-}
-
-
-/**
- * Post the given @event through the device hierarchy, as appropriate.
- * Use this function if an event must be posted for a given device during the
- * usual event processing cycle.
- */
-void
-mieqProcessDeviceEvent(DeviceIntPtr dev,
- InternalEvent *event,
- ScreenPtr screen)
-{
- mieqHandler handler;
- int x = 0, y = 0;
- DeviceIntPtr master;
- InternalEvent mevent; /* master event */
-
- verify_internal_event(event);
-
- /* Custom event handler */
- handler = miEventQueue.handlers[event->any.type];
-
- switch (event->any.type) {
- /* Catch events that include valuator information and check if they
- * are changing the screen */
- case ET_Motion:
- case ET_KeyPress:
- case ET_KeyRelease:
- case ET_ButtonPress:
- case ET_ButtonRelease:
- if (dev && screen && dev->spriteInfo->sprite && screen != DequeueScreen(dev) && !handler) {
- DequeueScreen(dev) = screen;
- x = event->device_event.root_x;
- y = event->device_event.root_y;
- NewCurrentScreen (dev, DequeueScreen(dev), x, y);
- }
- break;
- default:
- break;
- }
- master = CopyGetMasterEvent(dev, event, &mevent);
-
- if (master)
- master->lastSlave = dev;
-
- /* If someone's registered a custom event handler, let them
- * steal it. */
- if (handler)
- {
- int screenNum = dev && DequeueScreen(dev) ? DequeueScreen(dev)->myNum : (screen ? screen->myNum : 0);
- handler(screenNum, event, dev);
- /* Check for the SD's master in case the device got detached
- * during event processing */
- if (master && !IsFloating(dev))
- handler(screenNum, &mevent, master);
- } else
- {
- /* process slave first, then master */
- dev->public.processInputProc(event, dev);
-
- /* Check for the SD's master in case the device got detached
- * during event processing */
- if (master && !IsFloating(dev))
- master->public.processInputProc(&mevent, master);
- }
-}
-
-/* Call this from ProcessInputEvents(). */
-void
-mieqProcessInputEvents(void)
-{
- EventRec *e = NULL;
- ScreenPtr screen;
- static InternalEvent event;
- DeviceIntPtr dev = NULL,
- master = NULL;
-
-#ifdef XQUARTZ
- pthread_mutex_lock(&miEventQueueMutex);
-#endif
-
- while (miEventQueue.head != miEventQueue.tail) {
- e = &miEventQueue.events[miEventQueue.head];
-
- event = *e->events;
- dev = e->pDev;
- screen = e->pScreen;
-
- miEventQueue.head = (miEventQueue.head + 1) % QUEUE_SIZE;
-
-#ifdef XQUARTZ
- pthread_mutex_unlock(&miEventQueueMutex);
-#endif
-
- master = (dev) ? GetMaster(dev, MASTER_ATTACHED) : NULL;
-
- if (screenIsSaved == SCREEN_SAVER_ON)
- dixSaveScreens (serverClient, SCREEN_SAVER_OFF, ScreenSaverReset);
-#ifdef DPMSExtension
- else if (DPMSPowerLevel != DPMSModeOn)
- SetScreenSaverTimer();
-
- if (DPMSPowerLevel != DPMSModeOn)
- DPMSSet(serverClient, DPMSModeOn);
-#endif
-
- mieqProcessDeviceEvent(dev, &event, screen);
-
- /* Update the sprite now. Next event may be from different device. */
- if (event.any.type == ET_Motion && master)
- miPointerUpdateSprite(dev);
-
-#ifdef XQUARTZ
- pthread_mutex_lock(&miEventQueueMutex);
-#endif
- }
-#ifdef XQUARTZ
- pthread_mutex_unlock(&miEventQueueMutex);
-#endif
-}
-
+/* + * +Copyright 1990, 1998 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN +AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +Except as contained in this notice, the name of The Open Group shall not be +used in advertising or otherwise to promote the sale, use or other dealings +in this Software without prior written authorization from The Open Group. + * + * Author: Keith Packard, MIT X Consortium + */ + +/* + * mieq.c + * + * Machine independent event queue + * + */ + +#if HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +# include <X11/X.h> +# include <X11/Xmd.h> +# include <X11/Xproto.h> +# include "misc.h" +# include "windowstr.h" +# include "pixmapstr.h" +# include "inputstr.h" +# include "inpututils.h" +# include "mi.h" +# include "mipointer.h" +# include "scrnintstr.h" +# include <X11/extensions/XI.h> +# include <X11/extensions/XIproto.h> +# include <X11/extensions/geproto.h> +# include "extinit.h" +# include "exglobals.h" +# include "eventstr.h" + +#ifdef DPMSExtension +# include "dpmsproc.h" +# include <X11/extensions/dpmsconst.h> +#endif + +#define QUEUE_SIZE 512 + +#define EnqueueScreen(dev) dev->spriteInfo->sprite->pEnqueueScreen +#define DequeueScreen(dev) dev->spriteInfo->sprite->pDequeueScreen + +typedef struct _Event { + InternalEvent* events; + ScreenPtr pScreen; + DeviceIntPtr pDev; /* device this event _originated_ from */ +} EventRec, *EventPtr; + +typedef struct _EventQueue { + HWEventQueueType head, tail; /* long for SetInputCheck */ + CARD32 lastEventTime; /* to avoid time running backwards */ + int lastMotion; /* device ID if last event motion? */ + EventRec events[QUEUE_SIZE]; /* static allocation for signals */ + mieqHandler handlers[128]; /* custom event handler */ +} EventQueueRec, *EventQueuePtr; + +static EventQueueRec miEventQueue; + +#ifdef XQUARTZ +#include <pthread.h> +static pthread_mutex_t miEventQueueMutex = PTHREAD_MUTEX_INITIALIZER; + +extern BOOL serverRunning; +extern pthread_mutex_t serverRunningMutex; +extern pthread_cond_t serverRunningCond; + +static inline void wait_for_server_init(void) { + /* If the server hasn't finished initializing, wait for it... */ + if(!serverRunning) { + pthread_mutex_lock(&serverRunningMutex); + while(!serverRunning) + pthread_cond_wait(&serverRunningCond, &serverRunningMutex); + pthread_mutex_unlock(&serverRunningMutex); + } +} +#endif + +Bool +mieqInit(void) +{ + int i; + + miEventQueue.head = miEventQueue.tail = 0; + miEventQueue.lastEventTime = GetTimeInMillis (); + miEventQueue.lastMotion = FALSE; + for (i = 0; i < 128; i++) + miEventQueue.handlers[i] = NULL; + for (i = 0; i < QUEUE_SIZE; i++) + { + if (miEventQueue.events[i].events == NULL) { + InternalEvent* evlist = InitEventList(1); + if (!evlist) + FatalError("Could not allocate event queue.\n"); + miEventQueue.events[i].events = evlist; + } + } + + SetInputCheck(&miEventQueue.head, &miEventQueue.tail); + return TRUE; +} + +void +mieqFini(void) +{ + int i; + for (i = 0; i < QUEUE_SIZE; i++) + { + if (miEventQueue.events[i].events != NULL) { + FreeEventList(miEventQueue.events[i].events, 1); + miEventQueue.events[i].events = NULL; + } + } +} + +/* + * Must be reentrant with ProcessInputEvents. Assumption: mieqEnqueue + * will never be interrupted. If this is called from both signal + * handlers and regular code, make sure the signal is suspended when + * called from regular code. + */ + +void +mieqEnqueue(DeviceIntPtr pDev, InternalEvent *e) +{ + unsigned int oldtail = miEventQueue.tail; + InternalEvent* evt; + int isMotion = 0; + int evlen; + Time time; + +#ifdef XQUARTZ + wait_for_server_init(); + pthread_mutex_lock(&miEventQueueMutex); +#endif + + verify_internal_event(e); + + /* avoid merging events from different devices */ + if (e->any.type == ET_Motion) + isMotion = pDev->id; + + if (isMotion && isMotion == miEventQueue.lastMotion && + oldtail != miEventQueue.head) { + oldtail = (oldtail - 1) % QUEUE_SIZE; + } + else { + static int stuck = 0; + /* Toss events which come in late. Usually this means your server's + * stuck in an infinite loop somewhere, but SIGIO is still getting + * handled. */ + if (((oldtail + 1) % QUEUE_SIZE) == miEventQueue.head) { + if (!stuck) { + ErrorF("[mi] EQ overflowing. The server is probably stuck " + "in an infinite loop.\n"); + xorg_backtrace(); + stuck = 1; + } +#ifdef XQUARTZ + pthread_mutex_unlock(&miEventQueueMutex); +#endif + return; + } + stuck = 0; + } + + evlen = e->any.length; + evt = miEventQueue.events[oldtail].events; + memcpy(evt, e, evlen); + + time = e->any.time; + /* Make sure that event times don't go backwards - this + * is "unnecessary", but very useful. */ + if (time < miEventQueue.lastEventTime && + miEventQueue.lastEventTime - time < 10000) + e->any.time = miEventQueue.lastEventTime; + + miEventQueue.lastEventTime = evt->any.time; + miEventQueue.events[oldtail].pScreen = pDev ? EnqueueScreen(pDev) : NULL; + miEventQueue.events[oldtail].pDev = pDev; + + miEventQueue.lastMotion = isMotion; + miEventQueue.tail = (oldtail + 1) % QUEUE_SIZE; +#ifdef XQUARTZ + pthread_mutex_unlock(&miEventQueueMutex); +#endif +} + +void +mieqSwitchScreen(DeviceIntPtr pDev, ScreenPtr pScreen, Bool fromDIX) +{ +#ifdef XQUARTZ + pthread_mutex_lock(&miEventQueueMutex); +#endif + EnqueueScreen(pDev) = pScreen; + if (fromDIX) + DequeueScreen(pDev) = pScreen; +#ifdef XQUARTZ + pthread_mutex_unlock(&miEventQueueMutex); +#endif +} + +void +mieqSetHandler(int event, mieqHandler handler) +{ +#ifdef XQUARTZ + pthread_mutex_lock(&miEventQueueMutex); +#endif + if (handler && miEventQueue.handlers[event]) + ErrorF("[mi] mieq: warning: overriding existing handler %p with %p for " + "event %d\n", miEventQueue.handlers[event], handler, event); + + miEventQueue.handlers[event] = handler; +#ifdef XQUARTZ + pthread_mutex_unlock(&miEventQueueMutex); +#endif +} + +/** + * Change the device id of the given event to the given device's id. + */ +static void +ChangeDeviceID(DeviceIntPtr dev, InternalEvent* event) +{ + switch(event->any.type) + { + case ET_Motion: + case ET_KeyPress: + case ET_KeyRelease: + case ET_ButtonPress: + case ET_ButtonRelease: + case ET_ProximityIn: + case ET_ProximityOut: + case ET_Hierarchy: + case ET_DeviceChanged: + event->device_event.deviceid = dev->id; + break; +#if XFreeXDGA + case ET_DGAEvent: + break; +#endif + case ET_RawKeyPress: + case ET_RawKeyRelease: + case ET_RawButtonPress: + case ET_RawButtonRelease: + case ET_RawMotion: + event->raw_event.deviceid = dev->id; + break; + default: + ErrorF("[mi] Unknown event type (%d), cannot change id.\n", + event->any.type); + } +} + +static void +FixUpEventForMaster(DeviceIntPtr mdev, DeviceIntPtr sdev, + InternalEvent* original, InternalEvent *master) +{ + verify_internal_event(original); + verify_internal_event(master); + /* Ensure chained button mappings, i.e. that the detail field is the + * value of the mapped button on the SD, not the physical button */ + if (original->any.type == ET_ButtonPress || + original->any.type == ET_ButtonRelease) + { + int btn = original->device_event.detail.button; + if (!sdev->button) + return; /* Should never happen */ + + master->device_event.detail.button = sdev->button->map[btn]; + } +} + +/** + * Copy the given event into master. + * @param sdev The slave device the original event comes from + * @param original The event as it came from the EQ + * @param copy The event after being copied + * @return The master device or NULL if the device is a floating slave. + */ +DeviceIntPtr +CopyGetMasterEvent(DeviceIntPtr sdev, + InternalEvent* original, InternalEvent *copy) +{ + DeviceIntPtr mdev; + int len = original->any.length; + int type = original->any.type; + int mtype; /* which master type? */ + + verify_internal_event(original); + + /* ET_XQuartz has sdev == NULL */ + if (!sdev || IsMaster(sdev) || IsFloating(sdev)) + return NULL; + +#if XFreeXDGA + if (type == ET_DGAEvent) + type = original->dga_event.subtype; +#endif + + switch(type) + { + case ET_KeyPress: + case ET_KeyRelease: + mtype = MASTER_KEYBOARD; + break; + case ET_ButtonPress: + case ET_ButtonRelease: + case ET_Motion: + case ET_ProximityIn: + case ET_ProximityOut: + mtype = MASTER_POINTER; + break; + default: + mtype = MASTER_ATTACHED; + break; + } + + mdev = GetMaster(sdev, mtype); + memcpy(copy, original, len); + ChangeDeviceID(mdev, copy); + FixUpEventForMaster(mdev, sdev, original, copy); + + return mdev; +} + + +/** + * Post the given @event through the device hierarchy, as appropriate. + * Use this function if an event must be posted for a given device during the + * usual event processing cycle. + */ +void +mieqProcessDeviceEvent(DeviceIntPtr dev, + InternalEvent *event, + ScreenPtr screen) +{ + mieqHandler handler; + int x = 0, y = 0; + DeviceIntPtr master; + InternalEvent mevent; /* master event */ + + verify_internal_event(event); + + /* Custom event handler */ + handler = miEventQueue.handlers[event->any.type]; + + switch (event->any.type) { + /* Catch events that include valuator information and check if they + * are changing the screen */ + case ET_Motion: + case ET_KeyPress: + case ET_KeyRelease: + case ET_ButtonPress: + case ET_ButtonRelease: + if (dev && screen && dev->spriteInfo->sprite && screen != DequeueScreen(dev) && !handler) { + DequeueScreen(dev) = screen; + x = event->device_event.root_x; + y = event->device_event.root_y; + NewCurrentScreen (dev, DequeueScreen(dev), x, y); + } + break; + default: + break; + } + master = CopyGetMasterEvent(dev, event, &mevent); + + if (master) + master->lastSlave = dev; + + /* If someone's registered a custom event handler, let them + * steal it. */ + if (handler) + { + int screenNum = dev && DequeueScreen(dev) ? DequeueScreen(dev)->myNum : (screen ? screen->myNum : 0); + handler(screenNum, event, dev); + /* Check for the SD's master in case the device got detached + * during event processing */ + if (master && !IsFloating(dev)) + handler(screenNum, &mevent, master); + } else + { + /* process slave first, then master */ + dev->public.processInputProc(event, dev); + + /* Check for the SD's master in case the device got detached + * during event processing */ + if (master && !IsFloating(dev)) + master->public.processInputProc(&mevent, master); + } +} + +/* Call this from ProcessInputEvents(). */ +void +mieqProcessInputEvents(void) +{ + EventRec *e = NULL; + ScreenPtr screen; + static InternalEvent event; + DeviceIntPtr dev = NULL, + master = NULL; + +#ifdef XQUARTZ + pthread_mutex_lock(&miEventQueueMutex); +#endif + + while (miEventQueue.head != miEventQueue.tail) { + e = &miEventQueue.events[miEventQueue.head]; + + event = *e->events; + dev = e->pDev; + screen = e->pScreen; + + miEventQueue.head = (miEventQueue.head + 1) % QUEUE_SIZE; + +#ifdef XQUARTZ + pthread_mutex_unlock(&miEventQueueMutex); +#endif + + master = (dev) ? GetMaster(dev, MASTER_ATTACHED) : NULL; + + if (screenIsSaved == SCREEN_SAVER_ON) + dixSaveScreens (serverClient, SCREEN_SAVER_OFF, ScreenSaverReset); +#ifdef DPMSExtension + else if (DPMSPowerLevel != DPMSModeOn) + SetScreenSaverTimer(); + + if (DPMSPowerLevel != DPMSModeOn) + DPMSSet(serverClient, DPMSModeOn); +#endif + + mieqProcessDeviceEvent(dev, &event, screen); + + /* Update the sprite now. Next event may be from different device. */ + if (event.any.type == ET_Motion && master) + miPointerUpdateSprite(dev); + +#ifdef XQUARTZ + pthread_mutex_lock(&miEventQueueMutex); +#endif + } +#ifdef XQUARTZ + pthread_mutex_unlock(&miEventQueueMutex); +#endif +} + |