720 lines
22 KiB
C
720 lines
22 KiB
C
/*
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* Copyright © 2009 Red Hat, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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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
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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*/
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/**
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* @file eventconvert.c
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* This file contains event conversion routines from InternalEvent to the
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* matching protocol events.
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*/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include <stdint.h>
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#include <X11/X.h>
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#include <X11/extensions/XIproto.h>
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#include <X11/extensions/XI2proto.h>
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#include <X11/extensions/XI.h>
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#include <X11/extensions/XI2.h>
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#include "dix.h"
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#include "inputstr.h"
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#include "misc.h"
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#include "eventstr.h"
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#include "exglobals.h"
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#include "eventconvert.h"
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#include "xiquerydevice.h"
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#include "xkbsrv.h"
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static int countValuators(DeviceEvent *ev, int *first);
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static int getValuatorEvents(DeviceEvent *ev, deviceValuator *xv);
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static int eventToKeyButtonPointer(DeviceEvent *ev, xEvent **xi, int *count);
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static int eventToDeviceChanged(DeviceChangedEvent *ev, xEvent **dcce);
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static int eventToDeviceEvent(DeviceEvent *ev, xEvent **xi);
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static int eventToRawEvent(RawDeviceEvent *ev, xEvent **xi);
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/* Do not use, read comments below */
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BOOL EventIsKeyRepeat(xEvent *event);
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/**
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* Hack to allow detectable autorepeat for core and XI1 events.
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* The sequence number is unused until we send to the client and can be
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* misused to store data. More or less, anyway.
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*
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* Do not use this. It may change any time without warning, eat your babies
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* and piss on your cat.
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*/
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static void
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EventSetKeyRepeatFlag(xEvent *event, BOOL on)
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{
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event->u.u.sequenceNumber = on;
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}
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/**
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* Check if the event was marked as a repeat event before.
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* NOTE: This is a nasty hack and should NOT be used by anyone else but
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* TryClientEvents.
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*/
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BOOL
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EventIsKeyRepeat(xEvent *event)
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{
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return !!event->u.u.sequenceNumber;
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}
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/**
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* Convert the given event to the respective core event.
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*
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* Return values:
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* Success ... core contains the matching core event.
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* BadValue .. One or more values in the internal event are invalid.
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* BadMatch .. The event has no core equivalent.
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*
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* @param[in] event The event to convert into a core event.
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* @param[in] core The memory location to store the core event at.
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* @return Success or the matching error code.
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*/
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int
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EventToCore(InternalEvent *event, xEvent *core)
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{
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switch(event->any.type)
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{
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case ET_Motion:
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case ET_ButtonPress:
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case ET_ButtonRelease:
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case ET_KeyPress:
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case ET_KeyRelease:
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{
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DeviceEvent *e = &event->device_event;
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if (e->detail.key > 0xFF)
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return BadMatch;
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memset(core, 0, sizeof(xEvent));
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core->u.u.type = e->type - ET_KeyPress + KeyPress;
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core->u.u.detail = e->detail.key & 0xFF;
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core->u.keyButtonPointer.time = e->time;
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core->u.keyButtonPointer.rootX = e->root_x;
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core->u.keyButtonPointer.rootY = e->root_y;
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core->u.keyButtonPointer.state = e->corestate;
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core->u.keyButtonPointer.root = e->root;
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EventSetKeyRepeatFlag(core, (e->type == ET_KeyPress && e->key_repeat));
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}
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break;
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case ET_ProximityIn:
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case ET_ProximityOut:
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case ET_RawKeyPress:
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case ET_RawKeyRelease:
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case ET_RawButtonPress:
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case ET_RawButtonRelease:
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case ET_RawMotion:
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return BadMatch;
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default:
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/* XXX: */
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ErrorF("[dix] EventToCore: Not implemented yet \n");
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return BadImplementation;
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}
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return Success;
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}
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/**
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* Convert the given event to the respective XI 1.x event and store it in
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* xi. xi is allocated on demand and must be freed by the caller.
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* count returns the number of events in xi. If count is 1, and the type of
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* xi is GenericEvent, then xi may be larger than 32 bytes.
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*
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* Return values:
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* Success ... core contains the matching core event.
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* BadValue .. One or more values in the internal event are invalid.
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* BadMatch .. The event has no XI equivalent.
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*
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* @param[in] ev The event to convert into an XI 1 event.
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* @param[out] xi Future memory location for the XI event.
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* @param[out] count Number of elements in xi.
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*
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* @return Success or the error code.
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*/
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int
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EventToXI(InternalEvent *ev, xEvent **xi, int *count)
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{
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switch (ev->any.type)
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{
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case ET_Motion:
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case ET_ButtonPress:
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case ET_ButtonRelease:
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case ET_KeyPress:
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case ET_KeyRelease:
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case ET_ProximityIn:
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case ET_ProximityOut:
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return eventToKeyButtonPointer(&ev->device_event, xi, count);
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case ET_DeviceChanged:
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case ET_RawKeyPress:
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case ET_RawKeyRelease:
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case ET_RawButtonPress:
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case ET_RawButtonRelease:
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case ET_RawMotion:
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*count = 0;
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*xi = NULL;
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return BadMatch;
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default:
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break;
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}
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ErrorF("[dix] EventToXI: Not implemented for %d \n", ev->any.type);
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return BadImplementation;
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}
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/**
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* Convert the given event to the respective XI 2.x event and store it in xi.
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* xi is allocated on demand and must be freed by the caller.
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*
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* Return values:
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* Success ... core contains the matching core event.
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* BadValue .. One or more values in the internal event are invalid.
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* BadMatch .. The event has no XI2 equivalent.
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*
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* @param[in] ev The event to convert into an XI2 event
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* @param[out] xi Future memory location for the XI2 event.
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*
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* @return Success or the error code.
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*/
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int
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EventToXI2(InternalEvent *ev, xEvent **xi)
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{
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switch (ev->any.type)
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{
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/* Enter/FocusIn are for grabs. We don't need an actual event, since
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* the real events delivered are triggered elsewhere */
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case ET_Enter:
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case ET_FocusIn:
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*xi = NULL;
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return Success;
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case ET_Motion:
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case ET_ButtonPress:
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case ET_ButtonRelease:
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case ET_KeyPress:
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case ET_KeyRelease:
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return eventToDeviceEvent(&ev->device_event, xi);
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case ET_ProximityIn:
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case ET_ProximityOut:
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*xi = NULL;
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return BadMatch;
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case ET_DeviceChanged:
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return eventToDeviceChanged(&ev->changed_event, xi);
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case ET_RawKeyPress:
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case ET_RawKeyRelease:
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case ET_RawButtonPress:
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case ET_RawButtonRelease:
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case ET_RawMotion:
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return eventToRawEvent(&ev->raw_event, xi);
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default:
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break;
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}
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ErrorF("[dix] EventToXI2: Not implemented for %d \n", ev->any.type);
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return BadImplementation;
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}
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static int
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eventToKeyButtonPointer(DeviceEvent *ev, xEvent **xi, int *count)
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{
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int num_events;
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int first; /* dummy */
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deviceKeyButtonPointer *kbp;
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/* Sorry, XI 1.x protocol restrictions. */
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if (ev->detail.button > 0xFF || ev->deviceid >= 0x80)
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{
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*count = 0;
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return Success;
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}
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num_events = (countValuators(ev, &first) + 5)/6; /* valuator ev */
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num_events++; /* the actual event event */
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*xi = calloc(num_events, sizeof(xEvent));
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if (!(*xi))
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{
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return BadAlloc;
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}
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kbp = (deviceKeyButtonPointer*)(*xi);
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kbp->detail = ev->detail.button;
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kbp->time = ev->time;
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kbp->root = ev->root;
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kbp->root_x = ev->root_x;
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kbp->root_y = ev->root_y;
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kbp->deviceid = ev->deviceid;
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kbp->state = ev->corestate;
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EventSetKeyRepeatFlag((xEvent*)kbp,
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(ev->type == ET_KeyPress && ev->key_repeat));
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if (num_events > 1)
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kbp->deviceid |= MORE_EVENTS;
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switch(ev->type)
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{
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case ET_Motion: kbp->type = DeviceMotionNotify; break;
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case ET_ButtonPress: kbp->type = DeviceButtonPress; break;
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case ET_ButtonRelease: kbp->type = DeviceButtonRelease; break;
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case ET_KeyPress: kbp->type = DeviceKeyPress; break;
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case ET_KeyRelease: kbp->type = DeviceKeyRelease; break;
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case ET_ProximityIn: kbp->type = ProximityIn; break;
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case ET_ProximityOut: kbp->type = ProximityOut; break;
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default:
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break;
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}
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if (num_events > 1)
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{
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getValuatorEvents(ev, (deviceValuator*)(kbp + 1));
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}
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*count = num_events;
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return Success;
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}
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/**
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* Set first to the first valuator in the event ev and return the number of
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* valuators from first to the last set valuator.
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*/
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static int
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countValuators(DeviceEvent *ev, int *first)
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{
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int first_valuator = -1, last_valuator = -1, num_valuators = 0;
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int i;
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for (i = 0; i < sizeof(ev->valuators.mask) * 8; i++)
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{
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if (BitIsOn(ev->valuators.mask, i))
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{
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if (first_valuator == -1)
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first_valuator = i;
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last_valuator = i;
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}
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}
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if (first_valuator != -1)
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{
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num_valuators = last_valuator - first_valuator + 1;
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*first = first_valuator;
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}
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return num_valuators;
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}
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static int
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getValuatorEvents(DeviceEvent *ev, deviceValuator *xv)
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{
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int i;
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int state = 0;
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int first_valuator, num_valuators;
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num_valuators = countValuators(ev, &first_valuator);
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if (num_valuators > 0)
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{
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DeviceIntPtr dev = NULL;
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dixLookupDevice(&dev, ev->deviceid, serverClient, DixUseAccess);
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/* State needs to be assembled BEFORE the device is updated. */
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state = (dev && dev->key) ? XkbStateFieldFromRec(&dev->key->xkbInfo->state) : 0;
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state |= (dev && dev->button) ? (dev->button->state) : 0;
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}
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/* FIXME: non-continuous valuator data in internal events*/
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for (i = 0; i < num_valuators; i += 6, xv++) {
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xv->type = DeviceValuator;
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xv->first_valuator = first_valuator + i;
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xv->num_valuators = ((num_valuators - i) > 6) ? 6 : (num_valuators - i);
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xv->deviceid = ev->deviceid;
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xv->device_state = state;
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switch (xv->num_valuators) {
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case 6:
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xv->valuator5 = ev->valuators.data[xv->first_valuator + 5];
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case 5:
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xv->valuator4 = ev->valuators.data[xv->first_valuator + 4];
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case 4:
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xv->valuator3 = ev->valuators.data[xv->first_valuator + 3];
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case 3:
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xv->valuator2 = ev->valuators.data[xv->first_valuator + 2];
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case 2:
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xv->valuator1 = ev->valuators.data[xv->first_valuator + 1];
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case 1:
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xv->valuator0 = ev->valuators.data[xv->first_valuator + 0];
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}
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if (i + 6 < num_valuators)
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xv->deviceid |= MORE_EVENTS;
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}
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return (num_valuators + 5) / 6;
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}
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static int
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appendKeyInfo(DeviceChangedEvent *dce, xXIKeyInfo* info)
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{
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uint32_t *kc;
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int i;
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info->type = XIKeyClass;
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info->num_keycodes = dce->keys.max_keycode - dce->keys.min_keycode + 1;
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info->length = sizeof(xXIKeyInfo)/4 + info->num_keycodes;
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info->sourceid = dce->sourceid;
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kc = (uint32_t*)&info[1];
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for (i = 0; i < info->num_keycodes; i++)
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*kc++ = i + dce->keys.min_keycode;
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return info->length * 4;
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}
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static int
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appendButtonInfo(DeviceChangedEvent *dce, xXIButtonInfo *info)
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{
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unsigned char *bits;
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int mask_len;
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mask_len = bytes_to_int32(bits_to_bytes(dce->buttons.num_buttons));
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info->type = XIButtonClass;
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info->num_buttons = dce->buttons.num_buttons;
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info->length = bytes_to_int32(sizeof(xXIButtonInfo)) +
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info->num_buttons + mask_len;
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info->sourceid = dce->sourceid;
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bits = (unsigned char*)&info[1];
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memset(bits, 0, mask_len * 4);
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/* FIXME: is_down? */
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bits += mask_len * 4;
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memcpy(bits, dce->buttons.names, dce->buttons.num_buttons * sizeof(Atom));
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return info->length * 4;
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}
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static int
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appendValuatorInfo(DeviceChangedEvent *dce, xXIValuatorInfo *info, int axisnumber)
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{
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info->type = XIValuatorClass;
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info->length = sizeof(xXIValuatorInfo)/4;
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info->label = dce->valuators[axisnumber].name;
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info->min.integral = dce->valuators[axisnumber].min;
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info->min.frac = 0;
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info->max.integral = dce->valuators[axisnumber].max;
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info->max.frac = 0;
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/* FIXME: value */
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info->value.integral = 0;
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info->value.frac = 0;
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info->resolution = dce->valuators[axisnumber].resolution;
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info->number = axisnumber;
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info->mode = dce->valuators[axisnumber].mode; /* Server doesn't have per-axis mode yet */
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info->sourceid = dce->sourceid;
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return info->length * 4;
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}
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static int
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eventToDeviceChanged(DeviceChangedEvent *dce, xEvent **xi)
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{
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xXIDeviceChangedEvent *dcce;
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int len = sizeof(xXIDeviceChangedEvent);
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int nkeys;
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char *ptr;
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if (dce->buttons.num_buttons)
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{
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len += sizeof(xXIButtonInfo);
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len += dce->buttons.num_buttons * sizeof(Atom); /* button names */
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len += pad_to_int32(bits_to_bytes(dce->buttons.num_buttons));
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}
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if (dce->num_valuators)
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len += sizeof(xXIValuatorInfo) * dce->num_valuators;
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nkeys = (dce->keys.max_keycode > 0) ?
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dce->keys.max_keycode - dce->keys.min_keycode + 1 : 0;
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if (nkeys > 0)
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{
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len += sizeof(xXIKeyInfo);
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len += sizeof(CARD32) * nkeys; /* keycodes */
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}
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dcce = calloc(1, len);
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if (!dcce)
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{
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ErrorF("[Xi] BadAlloc in SendDeviceChangedEvent.\n");
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return BadAlloc;
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}
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dcce->type = GenericEvent;
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dcce->extension = IReqCode;
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dcce->evtype = XI_DeviceChanged;
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dcce->time = dce->time;
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dcce->deviceid = dce->deviceid;
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dcce->sourceid = dce->sourceid;
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dcce->reason = (dce->flags & DEVCHANGE_DEVICE_CHANGE) ? XIDeviceChange : XISlaveSwitch;
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dcce->num_classes = 0;
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dcce->length = bytes_to_int32(len - sizeof(xEvent));
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ptr = (char*)&dcce[1];
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if (dce->buttons.num_buttons)
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{
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dcce->num_classes++;
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ptr += appendButtonInfo(dce, (xXIButtonInfo*)ptr);
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}
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if (nkeys)
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{
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dcce->num_classes++;
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ptr += appendKeyInfo(dce, (xXIKeyInfo*)ptr);
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}
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if (dce->num_valuators)
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{
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int i;
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dcce->num_classes += dce->num_valuators;
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for (i = 0; i < dce->num_valuators; i++)
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ptr += appendValuatorInfo(dce, (xXIValuatorInfo*)ptr, i);
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}
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*xi = (xEvent*)dcce;
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return Success;
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}
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static int count_bits(unsigned char* ptr, int len)
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{
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int bits = 0;
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unsigned int i;
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unsigned char x;
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for (i = 0; i < len; i++)
|
|
{
|
|
x = ptr[i];
|
|
while(x > 0)
|
|
{
|
|
bits += (x & 0x1);
|
|
x >>= 1;
|
|
}
|
|
}
|
|
return bits;
|
|
}
|
|
|
|
static int
|
|
eventToDeviceEvent(DeviceEvent *ev, xEvent **xi)
|
|
{
|
|
int len = sizeof(xXIDeviceEvent);
|
|
xXIDeviceEvent *xde;
|
|
int i, btlen, vallen;
|
|
char *ptr;
|
|
FP3232 *axisval;
|
|
|
|
/* FIXME: this should just send the buttons we have, not MAX_BUTTONs. Same
|
|
* with MAX_VALUATORS below */
|
|
/* btlen is in 4 byte units */
|
|
btlen = bytes_to_int32(bits_to_bytes(MAX_BUTTONS));
|
|
len += btlen * 4; /* buttonmask len */
|
|
|
|
|
|
vallen = count_bits(ev->valuators.mask, sizeof(ev->valuators.mask)/sizeof(ev->valuators.mask[0]));
|
|
len += vallen * 2 * sizeof(uint32_t); /* axisvalues */
|
|
vallen = bytes_to_int32(bits_to_bytes(MAX_VALUATORS));
|
|
len += vallen * 4; /* valuators mask */
|
|
|
|
*xi = calloc(1, len);
|
|
xde = (xXIDeviceEvent*)*xi;
|
|
xde->type = GenericEvent;
|
|
xde->extension = IReqCode;
|
|
xde->evtype = GetXI2Type((InternalEvent*)ev);
|
|
xde->time = ev->time;
|
|
xde->length = bytes_to_int32(len - sizeof(xEvent));
|
|
xde->detail = ev->detail.button;
|
|
xde->root = ev->root;
|
|
xde->buttons_len = btlen;
|
|
xde->valuators_len = vallen;
|
|
xde->deviceid = ev->deviceid;
|
|
xde->sourceid = ev->sourceid;
|
|
xde->root_x = FP1616(ev->root_x, ev->root_x_frac);
|
|
xde->root_y = FP1616(ev->root_y, ev->root_y_frac);
|
|
|
|
if (ev->key_repeat)
|
|
xde->flags |= XIKeyRepeat;
|
|
|
|
xde->mods.base_mods = ev->mods.base;
|
|
xde->mods.latched_mods = ev->mods.latched;
|
|
xde->mods.locked_mods = ev->mods.locked;
|
|
xde->mods.effective_mods = ev->mods.effective;
|
|
|
|
xde->group.base_group = ev->group.base;
|
|
xde->group.latched_group = ev->group.latched;
|
|
xde->group.locked_group = ev->group.locked;
|
|
xde->group.effective_group = ev->group.effective;
|
|
|
|
ptr = (char*)&xde[1];
|
|
for (i = 0; i < sizeof(ev->buttons) * 8; i++)
|
|
{
|
|
if (BitIsOn(ev->buttons, i))
|
|
SetBit(ptr, i);
|
|
}
|
|
|
|
ptr += xde->buttons_len * 4;
|
|
axisval = (FP3232*)(ptr + xde->valuators_len * 4);
|
|
for (i = 0; i < sizeof(ev->valuators.mask) * 8; i++)
|
|
{
|
|
if (BitIsOn(ev->valuators.mask, i))
|
|
{
|
|
SetBit(ptr, i);
|
|
axisval->integral = ev->valuators.data[i];
|
|
axisval->frac = ev->valuators.data_frac[i];
|
|
axisval++;
|
|
}
|
|
}
|
|
|
|
return Success;
|
|
}
|
|
|
|
static int
|
|
eventToRawEvent(RawDeviceEvent *ev, xEvent **xi)
|
|
{
|
|
xXIRawEvent* raw;
|
|
int vallen, nvals;
|
|
int i, len = sizeof(xXIRawEvent);
|
|
char *ptr;
|
|
FP3232 *axisval;
|
|
|
|
nvals = count_bits(ev->valuators.mask, sizeof(ev->valuators.mask));
|
|
len += nvals * sizeof(FP3232) * 2; /* 8 byte per valuator, once
|
|
raw, once processed */
|
|
vallen = bytes_to_int32(bits_to_bytes(MAX_VALUATORS));
|
|
len += vallen * 4; /* valuators mask */
|
|
|
|
*xi = calloc(1, len);
|
|
raw = (xXIRawEvent*)*xi;
|
|
raw->type = GenericEvent;
|
|
raw->extension = IReqCode;
|
|
raw->evtype = GetXI2Type((InternalEvent*)ev);
|
|
raw->time = ev->time;
|
|
raw->length = bytes_to_int32(len - sizeof(xEvent));
|
|
raw->detail = ev->detail.button;
|
|
raw->deviceid = ev->deviceid;
|
|
raw->valuators_len = vallen;
|
|
|
|
ptr = (char*)&raw[1];
|
|
axisval = (FP3232*)(ptr + raw->valuators_len * 4);
|
|
for (i = 0; i < sizeof(ev->valuators.mask) * 8; i++)
|
|
{
|
|
if (BitIsOn(ev->valuators.mask, i))
|
|
{
|
|
SetBit(ptr, i);
|
|
axisval->integral = ev->valuators.data[i];
|
|
axisval->frac = ev->valuators.data_frac[i];
|
|
(axisval + nvals)->integral = ev->valuators.data_raw[i];
|
|
(axisval + nvals)->frac = ev->valuators.data_raw_frac[i];
|
|
axisval++;
|
|
}
|
|
}
|
|
|
|
return Success;
|
|
}
|
|
|
|
/**
|
|
* Return the corresponding core type for the given event or 0 if no core
|
|
* equivalent exists.
|
|
*/
|
|
int
|
|
GetCoreType(InternalEvent *event)
|
|
{
|
|
int coretype = 0;
|
|
switch(event->any.type)
|
|
{
|
|
case ET_Motion: coretype = MotionNotify; break;
|
|
case ET_ButtonPress: coretype = ButtonPress; break;
|
|
case ET_ButtonRelease: coretype = ButtonRelease; break;
|
|
case ET_KeyPress: coretype = KeyPress; break;
|
|
case ET_KeyRelease: coretype = KeyRelease; break;
|
|
default:
|
|
break;
|
|
}
|
|
return coretype;
|
|
}
|
|
|
|
/**
|
|
* Return the corresponding XI 1.x type for the given event or 0 if no
|
|
* equivalent exists.
|
|
*/
|
|
int
|
|
GetXIType(InternalEvent *event)
|
|
{
|
|
int xitype = 0;
|
|
switch(event->any.type)
|
|
{
|
|
case ET_Motion: xitype = DeviceMotionNotify; break;
|
|
case ET_ButtonPress: xitype = DeviceButtonPress; break;
|
|
case ET_ButtonRelease: xitype = DeviceButtonRelease; break;
|
|
case ET_KeyPress: xitype = DeviceKeyPress; break;
|
|
case ET_KeyRelease: xitype = DeviceKeyRelease; break;
|
|
case ET_ProximityIn: xitype = ProximityIn; break;
|
|
case ET_ProximityOut: xitype = ProximityOut; break;
|
|
default:
|
|
break;
|
|
}
|
|
return xitype;
|
|
}
|
|
|
|
/**
|
|
* Return the corresponding XI 2.x type for the given event or 0 if no
|
|
* equivalent exists.
|
|
*/
|
|
int
|
|
GetXI2Type(InternalEvent *event)
|
|
{
|
|
int xi2type = 0;
|
|
|
|
switch(event->any.type)
|
|
{
|
|
case ET_Motion: xi2type = XI_Motion; break;
|
|
case ET_ButtonPress: xi2type = XI_ButtonPress; break;
|
|
case ET_ButtonRelease: xi2type = XI_ButtonRelease; break;
|
|
case ET_KeyPress: xi2type = XI_KeyPress; break;
|
|
case ET_KeyRelease: xi2type = XI_KeyRelease; break;
|
|
case ET_Enter: xi2type = XI_Enter; break;
|
|
case ET_Leave: xi2type = XI_Leave; break;
|
|
case ET_Hierarchy: xi2type = XI_HierarchyChanged; break;
|
|
case ET_DeviceChanged: xi2type = XI_DeviceChanged; break;
|
|
case ET_RawKeyPress: xi2type = XI_RawKeyPress; break;
|
|
case ET_RawKeyRelease: xi2type = XI_RawKeyRelease; break;
|
|
case ET_RawButtonPress: xi2type = XI_RawButtonPress; break;
|
|
case ET_RawButtonRelease: xi2type = XI_RawButtonRelease; break;
|
|
case ET_RawMotion: xi2type = XI_RawMotion; break;
|
|
case ET_FocusIn: xi2type = XI_FocusIn; break;
|
|
case ET_FocusOut: xi2type = XI_FocusOut; break;
|
|
default:
|
|
break;
|
|
}
|
|
return xi2type;
|
|
}
|