xserver git update 15/5/2010

1 files changed, 719 insertions, 719 deletions

diff --git a/xorg-server/dix/eventconvert.c b/xorg-server/dix/eventconvert.c
index 878dba576..aa72708ed 100644
--- a/xorg-server/dix/eventconvert.c
+++ b/xorg-server/dix/eventconvert.c
@@ -1,719 +1,719 @@
-/*
- * Copyright © 2009 Red Hat, Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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.
- *
- */
-
-/**
- * @file eventconvert.c
- * This file contains event conversion routines from InternalEvent to the
- * matching protocol events.
- */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <stdint.h>
-#include <X11/X.h>
-#include <X11/extensions/XIproto.h>
-#include <X11/extensions/XI2proto.h>
-#include <X11/extensions/XI.h>
-#include <X11/extensions/XI2.h>
-
-#include "dix.h"
-#include "inputstr.h"
-#include "misc.h"
-#include "eventstr.h"
-#include "exglobals.h"
-#include "eventconvert.h"
-#include "xiquerydevice.h"
-#include "xkbsrv.h"
-
-
-static int countValuators(DeviceEvent *ev, int *first);
-static int getValuatorEvents(DeviceEvent *ev, deviceValuator *xv);
-static int eventToKeyButtonPointer(DeviceEvent *ev, xEvent **xi, int *count);
-static int eventToDeviceChanged(DeviceChangedEvent *ev, xEvent **dcce);
-static int eventToDeviceEvent(DeviceEvent *ev, xEvent **xi);
-static int eventToRawEvent(RawDeviceEvent *ev, xEvent **xi);
-
-/* Do not use, read comments below */
-BOOL EventIsKeyRepeat(xEvent *event);
-
-/**
- * Hack to allow detectable autorepeat for core and XI1 events.
- * The sequence number is unused until we send to the client and can be
- * misused to store data. More or less, anyway.
- *
- * Do not use this. It may change any time without warning, eat your babies
- * and piss on your cat.
- */
-static void
-EventSetKeyRepeatFlag(xEvent *event, BOOL on)
-{
-    event->u.u.sequenceNumber = on;
-}
-
-/**
- * Check if the event was marked as a repeat event before.
- * NOTE: This is a nasty hack and should NOT be used by anyone else but
- * TryClientEvents.
- */
-BOOL
-EventIsKeyRepeat(xEvent *event)
-{
-    return !!event->u.u.sequenceNumber;
-}
-
-/**
- * Convert the given event to the respective core event.
- *
- * Return values:
- * Success ... core contains the matching core event.
- * BadValue .. One or more values in the internal event are invalid.
- * BadMatch .. The event has no core equivalent.
- *
- * @param[in] event The event to convert into a core event.
- * @param[in] core The memory location to store the core event at.
- * @return Success or the matching error code.
- */
-int
-EventToCore(InternalEvent *event, xEvent *core)
-{
-    switch(event->any.type)
-    {
-        case ET_Motion:
-        case ET_ButtonPress:
-        case ET_ButtonRelease:
-        case ET_KeyPress:
-        case ET_KeyRelease:
-            {
-                DeviceEvent *e = &event->device_event;
-
-                if (e->detail.key > 0xFF)
-                    return BadMatch;
-
-                memset(core, 0, sizeof(xEvent));
-                core->u.u.type = e->type - ET_KeyPress + KeyPress;
-                core->u.u.detail = e->detail.key & 0xFF;
-                core->u.keyButtonPointer.time = e->time;
-                core->u.keyButtonPointer.rootX = e->root_x;
-                core->u.keyButtonPointer.rootY = e->root_y;
-                core->u.keyButtonPointer.state = e->corestate;
-                core->u.keyButtonPointer.root = e->root;
-                EventSetKeyRepeatFlag(core, (e->type == ET_KeyPress && e->key_repeat));
-            }
-            break;
-        case ET_ProximityIn:
-        case ET_ProximityOut:
-        case ET_RawKeyPress:
-        case ET_RawKeyRelease:
-        case ET_RawButtonPress:
-        case ET_RawButtonRelease:
-        case ET_RawMotion:
-            return BadMatch;
-        default:
-            /* XXX: */
-            ErrorF("[dix] EventToCore: Not implemented yet \n");
-            return BadImplementation;
-    }
-    return Success;
-}
-
-/**
- * Convert the given event to the respective XI 1.x event and store it in
- * xi. xi is allocated on demand and must be freed by the caller.
- * count returns the number of events in xi. If count is 1, and the type of
- * xi is GenericEvent, then xi may be larger than 32 bytes.
- *
- * Return values:
- * Success ... core contains the matching core event.
- * BadValue .. One or more values in the internal event are invalid.
- * BadMatch .. The event has no XI equivalent.
- *
- * @param[in] ev The event to convert into an XI 1 event.
- * @param[out] xi Future memory location for the XI event.
- * @param[out] count Number of elements in xi.
- *
- * @return Success or the error code.
- */
-int
-EventToXI(InternalEvent *ev, xEvent **xi, int *count)
-{
-    switch (ev->any.type)
-    {
-        case ET_Motion:
-        case ET_ButtonPress:
-        case ET_ButtonRelease:
-        case ET_KeyPress:
-        case ET_KeyRelease:
-        case ET_ProximityIn:
-        case ET_ProximityOut:
-            return eventToKeyButtonPointer(&ev->device_event, xi, count);
-        case ET_DeviceChanged:
-        case ET_RawKeyPress:
-        case ET_RawKeyRelease:
-        case ET_RawButtonPress:
-        case ET_RawButtonRelease:
-        case ET_RawMotion:
-            *count = 0;
-            *xi = NULL;
-            return BadMatch;
-        default:
-            break;
-    }
-
-    ErrorF("[dix] EventToXI: Not implemented for %d \n", ev->any.type);
-    return BadImplementation;
-}
-
-/**
- * Convert the given event to the respective XI 2.x event and store it in xi.
- * xi is allocated on demand and must be freed by the caller.
- *
- * Return values:
- * Success ... core contains the matching core event.
- * BadValue .. One or more values in the internal event are invalid.
- * BadMatch .. The event has no XI2 equivalent.
- *
- * @param[in] ev The event to convert into an XI2 event
- * @param[out] xi Future memory location for the XI2 event.
- *
- * @return Success or the error code.
- */
-int
-EventToXI2(InternalEvent *ev, xEvent **xi)
-{
-    switch (ev->any.type)
-    {
-        /* Enter/FocusIn are for grabs. We don't need an actual event, since
-         * the real events delivered are triggered elsewhere */
-        case ET_Enter:
-        case ET_FocusIn:
-            *xi = NULL;
-            return Success;
-        case ET_Motion:
-        case ET_ButtonPress:
-        case ET_ButtonRelease:
-        case ET_KeyPress:
-        case ET_KeyRelease:
-            return eventToDeviceEvent(&ev->device_event, xi);
-        case ET_ProximityIn:
-        case ET_ProximityOut:
-            *xi = NULL;
-            return BadMatch;
-        case ET_DeviceChanged:
-            return eventToDeviceChanged(&ev->changed_event, xi);
-        case ET_RawKeyPress:
-        case ET_RawKeyRelease:
-        case ET_RawButtonPress:
-        case ET_RawButtonRelease:
-        case ET_RawMotion:
-            return eventToRawEvent(&ev->raw_event, xi);
-        default:
-            break;
-    }
-
-    ErrorF("[dix] EventToXI2: Not implemented for %d \n", ev->any.type);
-    return BadImplementation;
-}
-
-static int
-eventToKeyButtonPointer(DeviceEvent *ev, xEvent **xi, int *count)
-{
-    int num_events;
-    int first; /* dummy */
-    deviceKeyButtonPointer *kbp;
-
-    /* Sorry, XI 1.x protocol restrictions. */
-    if (ev->detail.button > 0xFF || ev->deviceid >= 0x80)
-    {
-        *count = 0;
-        return Success;
-    }
-
-    num_events = (countValuators(ev, &first) + 5)/6; /* valuator ev */
-    num_events++; /* the actual event event */
-
-    *xi = xcalloc(num_events, sizeof(xEvent));
-    if (!(*xi))
-    {
-        return BadAlloc;
-    }
-
-    kbp           = (deviceKeyButtonPointer*)(*xi);
-    kbp->detail   = ev->detail.button;
-    kbp->time     = ev->time;
-    kbp->root     = ev->root;
-    kbp->root_x   = ev->root_x;
-    kbp->root_y   = ev->root_y;
-    kbp->deviceid = ev->deviceid;
-    kbp->state    = ev->corestate;
-    EventSetKeyRepeatFlag((xEvent*)kbp,
-                          (ev->type == ET_KeyPress && ev->key_repeat));
-
-    if (num_events > 1)
-        kbp->deviceid |= MORE_EVENTS;
-
-    switch(ev->type)
-    {
-        case ET_Motion:        kbp->type = DeviceMotionNotify;  break;
-        case ET_ButtonPress:   kbp->type = DeviceButtonPress;   break;
-        case ET_ButtonRelease: kbp->type = DeviceButtonRelease; break;
-        case ET_KeyPress:      kbp->type = DeviceKeyPress;      break;
-        case ET_KeyRelease:    kbp->type = DeviceKeyRelease;    break;
-        case ET_ProximityIn:   kbp->type = ProximityIn;         break;
-        case ET_ProximityOut:  kbp->type = ProximityOut;        break;
-        default:
-            break;
-    }
-
-    if (num_events > 1)
-    {
-        getValuatorEvents(ev, (deviceValuator*)(kbp + 1));
-    }
-
-    *count = num_events;
-    return Success;
-}
-
-
-/**
- * Set first to the first valuator in the event ev and return the number of
- * valuators from first to the last set valuator.
- */
-static int
-countValuators(DeviceEvent *ev, int *first)
-{
-    int first_valuator = -1, last_valuator = -1, num_valuators = 0;
-    int i;
-
-    for (i = 0; i < sizeof(ev->valuators.mask) * 8; i++)
-    {
-        if (BitIsOn(ev->valuators.mask, i))
-        {
-            if (first_valuator == -1)
-                first_valuator = i;
-            last_valuator = i;
-        }
-    }
-
-    if (first_valuator != -1)
-    {
-        num_valuators = last_valuator - first_valuator + 1;
-        *first = first_valuator;
-    }
-
-    return num_valuators;
-}
-
-static int
-getValuatorEvents(DeviceEvent *ev, deviceValuator *xv)
-{
-    int i;
-    int state = 0;
-    int first_valuator, num_valuators;
-
-
-    num_valuators = countValuators(ev, &first_valuator);
-    if (num_valuators > 0)
-    {
-        DeviceIntPtr dev = NULL;
-        dixLookupDevice(&dev, ev->deviceid, serverClient, DixUseAccess);
-        /* State needs to be assembled BEFORE the device is updated. */
-        state = (dev && dev->key) ? XkbStateFieldFromRec(&dev->key->xkbInfo->state) : 0;
-        state |= (dev && dev->button) ? (dev->button->state) : 0;
-    }
-
-    /* FIXME: non-continuous valuator data in internal events*/
-    for (i = 0; i < num_valuators; i += 6, xv++) {
-        xv->type = DeviceValuator;
-        xv->first_valuator = first_valuator + i;
-        xv->num_valuators = ((num_valuators - i) > 6) ? 6 : (num_valuators - i);
-        xv->deviceid = ev->deviceid;
-        xv->device_state = state;
-        switch (xv->num_valuators) {
-        case 6:
-            xv->valuator5 = ev->valuators.data[xv->first_valuator + 5];
-        case 5:
-            xv->valuator4 = ev->valuators.data[xv->first_valuator + 4];
-        case 4:
-            xv->valuator3 = ev->valuators.data[xv->first_valuator + 3];
-        case 3:
-            xv->valuator2 = ev->valuators.data[xv->first_valuator + 2];
-        case 2:
-            xv->valuator1 = ev->valuators.data[xv->first_valuator + 1];
-        case 1:
-            xv->valuator0 = ev->valuators.data[xv->first_valuator + 0];
-        }
-
-        if (i + 6 < num_valuators)
-            xv->deviceid |= MORE_EVENTS;
-    }
-
-    return (num_valuators + 5) / 6;
-}
-
-
-static int
-appendKeyInfo(DeviceChangedEvent *dce, xXIKeyInfo* info)
-{
-    uint32_t *kc;
-    int i;
-
-    info->type = XIKeyClass;
-    info->num_keycodes = dce->keys.max_keycode - dce->keys.min_keycode + 1;
-    info->length = sizeof(xXIKeyInfo)/4 + info->num_keycodes;
-    info->sourceid = dce->sourceid;
-
-    kc = (uint32_t*)&info[1];
-    for (i = 0; i < info->num_keycodes; i++)
-        *kc++ = i + dce->keys.min_keycode;
-
-    return info->length * 4;
-}
-
-static int
-appendButtonInfo(DeviceChangedEvent *dce, xXIButtonInfo *info)
-{
-    unsigned char *bits;
-    int mask_len;
-
-    mask_len = bytes_to_int32(bits_to_bytes(dce->buttons.num_buttons));
-
-    info->type = XIButtonClass;
-    info->num_buttons = dce->buttons.num_buttons;
-    info->length = bytes_to_int32(sizeof(xXIButtonInfo)) +
-                   info->num_buttons + mask_len;
-    info->sourceid = dce->sourceid;
-
-    bits = (unsigned char*)&info[1];
-    memset(bits, 0, mask_len * 4);
-    /* FIXME: is_down? */
-
-    bits += mask_len * 4;
-    memcpy(bits, dce->buttons.names, dce->buttons.num_buttons * sizeof(Atom));
-
-    return info->length * 4;
-}
-
-static int
-appendValuatorInfo(DeviceChangedEvent *dce, xXIValuatorInfo *info, int axisnumber)
-{
-    info->type = XIValuatorClass;
-    info->length = sizeof(xXIValuatorInfo)/4;
-    info->label = dce->valuators[axisnumber].name;
-    info->min.integral = dce->valuators[axisnumber].min;
-    info->min.frac = 0;
-    info->max.integral = dce->valuators[axisnumber].max;
-    info->max.frac = 0;
-    /* FIXME: value */
-    info->value.integral = 0;
-    info->value.frac = 0;
-    info->resolution = dce->valuators[axisnumber].resolution;
-    info->number = axisnumber;
-    info->mode = dce->valuators[axisnumber].mode; /* Server doesn't have per-axis mode yet */
-    info->sourceid = dce->sourceid;
-
-    return info->length * 4;
-}
-
-static int
-eventToDeviceChanged(DeviceChangedEvent *dce, xEvent **xi)
-{
-    xXIDeviceChangedEvent *dcce;
-    int len = sizeof(xXIDeviceChangedEvent);
-    int nkeys;
-    char *ptr;
-
-    if (dce->buttons.num_buttons)
-    {
-        len += sizeof(xXIButtonInfo);
-        len += dce->buttons.num_buttons * sizeof(Atom); /* button names */
-        len += pad_to_int32(bits_to_bytes(dce->buttons.num_buttons));
-    }
-    if (dce->num_valuators)
-        len += sizeof(xXIValuatorInfo) * dce->num_valuators;
-
-    nkeys = (dce->keys.max_keycode > 0) ?
-                dce->keys.max_keycode - dce->keys.min_keycode + 1 : 0;
-    if (nkeys > 0)
-    {
-        len += sizeof(xXIKeyInfo);
-        len += sizeof(CARD32) * nkeys; /* keycodes */
-    }
-
-    dcce = xcalloc(1, len);
-    if (!dcce)
-    {
-        ErrorF("[Xi] BadAlloc in SendDeviceChangedEvent.\n");
-        return BadAlloc;
-    }
-
-    dcce->type         = GenericEvent;
-    dcce->extension    = IReqCode;
-    dcce->evtype       = XI_DeviceChanged;
-    dcce->time         = dce->time;
-    dcce->deviceid     = dce->deviceid;
-    dcce->sourceid     = dce->sourceid;
-    dcce->reason       = (dce->flags & DEVCHANGE_DEVICE_CHANGE) ? XIDeviceChange : XISlaveSwitch;
-    dcce->num_classes  = 0;
-    dcce->length = bytes_to_int32(len - sizeof(xEvent));
-
-    ptr = (char*)&dcce[1];
-    if (dce->buttons.num_buttons)
-    {
-        dcce->num_classes++;
-        ptr += appendButtonInfo(dce, (xXIButtonInfo*)ptr);
-    }
-
-    if (nkeys)
-    {
-        dcce->num_classes++;
-        ptr += appendKeyInfo(dce, (xXIKeyInfo*)ptr);
-    }
-
-    if (dce->num_valuators)
-    {
-        int i;
-
-        dcce->num_classes += dce->num_valuators;
-        for (i = 0; i < dce->num_valuators; i++)
-            ptr += appendValuatorInfo(dce, (xXIValuatorInfo*)ptr, i);
-    }
-
-    *xi = (xEvent*)dcce;
-
-    return Success;
-}
-
-static int count_bits(unsigned char* ptr, int len)
-{
-    int bits = 0;
-    unsigned int i;
-    unsigned char x;
-
-    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 = xcalloc(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 = xcalloc(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;
-}
+/*

+ * Copyright © 2009 Red Hat, Inc.

+ *

+ * Permission is hereby granted, free of charge, to any person obtaining a

+ * copy of this software and associated documentation files (the "Software"),

+ * to deal in the Software without restriction, including without limitation

+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,

+ * and/or sell copies of the Software, and to permit persons to whom the

+ * Software is furnished to do so, subject to the following conditions:

+ *

+ * The above copyright notice and this permission notice (including the next

+ * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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.

+ *

+ */

+

+/**

+ * @file eventconvert.c

+ * This file contains event conversion routines from InternalEvent to the

+ * matching protocol events.

+ */

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include <stdint.h>

+#include <X11/X.h>

+#include <X11/extensions/XIproto.h>

+#include <X11/extensions/XI2proto.h>

+#include <X11/extensions/XI.h>

+#include <X11/extensions/XI2.h>

+

+#include "dix.h"

+#include "inputstr.h"

+#include "misc.h"

+#include "eventstr.h"

+#include "exglobals.h"

+#include "eventconvert.h"

+#include "xiquerydevice.h"

+#include "xkbsrv.h"

+

+

+static int countValuators(DeviceEvent *ev, int *first);

+static int getValuatorEvents(DeviceEvent *ev, deviceValuator *xv);

+static int eventToKeyButtonPointer(DeviceEvent *ev, xEvent **xi, int *count);

+static int eventToDeviceChanged(DeviceChangedEvent *ev, xEvent **dcce);

+static int eventToDeviceEvent(DeviceEvent *ev, xEvent **xi);

+static int eventToRawEvent(RawDeviceEvent *ev, xEvent **xi);

+

+/* Do not use, read comments below */

+BOOL EventIsKeyRepeat(xEvent *event);

+

+/**

+ * Hack to allow detectable autorepeat for core and XI1 events.

+ * The sequence number is unused until we send to the client and can be

+ * misused to store data. More or less, anyway.

+ *

+ * Do not use this. It may change any time without warning, eat your babies

+ * and piss on your cat.

+ */

+static void

+EventSetKeyRepeatFlag(xEvent *event, BOOL on)

+{

+    event->u.u.sequenceNumber = on;

+}

+

+/**

+ * Check if the event was marked as a repeat event before.

+ * NOTE: This is a nasty hack and should NOT be used by anyone else but

+ * TryClientEvents.

+ */

+BOOL

+EventIsKeyRepeat(xEvent *event)

+{

+    return !!event->u.u.sequenceNumber;

+}

+

+/**

+ * Convert the given event to the respective core event.

+ *

+ * Return values:

+ * Success ... core contains the matching core event.

+ * BadValue .. One or more values in the internal event are invalid.

+ * BadMatch .. The event has no core equivalent.

+ *

+ * @param[in] event The event to convert into a core event.

+ * @param[in] core The memory location to store the core event at.

+ * @return Success or the matching error code.

+ */

+int

+EventToCore(InternalEvent *event, xEvent *core)

+{

+    switch(event->any.type)

+    {

+        case ET_Motion:

+        case ET_ButtonPress:

+        case ET_ButtonRelease:

+        case ET_KeyPress:

+        case ET_KeyRelease:

+            {

+                DeviceEvent *e = &event->device_event;

+

+                if (e->detail.key > 0xFF)

+                    return BadMatch;

+

+                memset(core, 0, sizeof(xEvent));

+                core->u.u.type = e->type - ET_KeyPress + KeyPress;

+                core->u.u.detail = e->detail.key & 0xFF;

+                core->u.keyButtonPointer.time = e->time;

+                core->u.keyButtonPointer.rootX = e->root_x;

+                core->u.keyButtonPointer.rootY = e->root_y;

+                core->u.keyButtonPointer.state = e->corestate;

+                core->u.keyButtonPointer.root = e->root;

+                EventSetKeyRepeatFlag(core, (e->type == ET_KeyPress && e->key_repeat));

+            }

+            break;

+        case ET_ProximityIn:

+        case ET_ProximityOut:

+        case ET_RawKeyPress:

+        case ET_RawKeyRelease:

+        case ET_RawButtonPress:

+        case ET_RawButtonRelease:

+        case ET_RawMotion:

+            return BadMatch;

+        default:

+            /* XXX: */

+            ErrorF("[dix] EventToCore: Not implemented yet \n");

+            return BadImplementation;

+    }

+    return Success;

+}

+

+/**

+ * Convert the given event to the respective XI 1.x event and store it in

+ * xi. xi is allocated on demand and must be freed by the caller.

+ * count returns the number of events in xi. If count is 1, and the type of

+ * xi is GenericEvent, then xi may be larger than 32 bytes.

+ *

+ * Return values:

+ * Success ... core contains the matching core event.

+ * BadValue .. One or more values in the internal event are invalid.

+ * BadMatch .. The event has no XI equivalent.

+ *

+ * @param[in] ev The event to convert into an XI 1 event.

+ * @param[out] xi Future memory location for the XI event.

+ * @param[out] count Number of elements in xi.

+ *

+ * @return Success or the error code.

+ */

+int

+EventToXI(InternalEvent *ev, xEvent **xi, int *count)

+{

+    switch (ev->any.type)

+    {

+        case ET_Motion:

+        case ET_ButtonPress:

+        case ET_ButtonRelease:

+        case ET_KeyPress:

+        case ET_KeyRelease:

+        case ET_ProximityIn:

+        case ET_ProximityOut:

+            return eventToKeyButtonPointer(&ev->device_event, xi, count);

+        case ET_DeviceChanged:

+        case ET_RawKeyPress:

+        case ET_RawKeyRelease:

+        case ET_RawButtonPress:

+        case ET_RawButtonRelease:

+        case ET_RawMotion:

+            *count = 0;

+            *xi = NULL;

+            return BadMatch;

+        default:

+            break;

+    }

+

+    ErrorF("[dix] EventToXI: Not implemented for %d \n", ev->any.type);

+    return BadImplementation;

+}

+

+/**

+ * Convert the given event to the respective XI 2.x event and store it in xi.

+ * xi is allocated on demand and must be freed by the caller.

+ *

+ * Return values:

+ * Success ... core contains the matching core event.

+ * BadValue .. One or more values in the internal event are invalid.

+ * BadMatch .. The event has no XI2 equivalent.

+ *

+ * @param[in] ev The event to convert into an XI2 event

+ * @param[out] xi Future memory location for the XI2 event.

+ *

+ * @return Success or the error code.

+ */

+int

+EventToXI2(InternalEvent *ev, xEvent **xi)

+{

+    switch (ev->any.type)

+    {

+        /* Enter/FocusIn are for grabs. We don't need an actual event, since

+         * the real events delivered are triggered elsewhere */

+        case ET_Enter:

+        case ET_FocusIn:

+            *xi = NULL;

+            return Success;

+        case ET_Motion:

+        case ET_ButtonPress:

+        case ET_ButtonRelease:

+        case ET_KeyPress:

+        case ET_KeyRelease:

+            return eventToDeviceEvent(&ev->device_event, xi);

+        case ET_ProximityIn:

+        case ET_ProximityOut:

+            *xi = NULL;

+            return BadMatch;

+        case ET_DeviceChanged:

+            return eventToDeviceChanged(&ev->changed_event, xi);

+        case ET_RawKeyPress:

+        case ET_RawKeyRelease:

+        case ET_RawButtonPress:

+        case ET_RawButtonRelease:

+        case ET_RawMotion:

+            return eventToRawEvent(&ev->raw_event, xi);

+        default:

+            break;

+    }

+

+    ErrorF("[dix] EventToXI2: Not implemented for %d \n", ev->any.type);

+    return BadImplementation;

+}

+

+static int

+eventToKeyButtonPointer(DeviceEvent *ev, xEvent **xi, int *count)

+{

+    int num_events;

+    int first; /* dummy */

+    deviceKeyButtonPointer *kbp;

+

+    /* Sorry, XI 1.x protocol restrictions. */

+    if (ev->detail.button > 0xFF || ev->deviceid >= 0x80)

+    {

+        *count = 0;

+        return Success;

+    }

+

+    num_events = (countValuators(ev, &first) + 5)/6; /* valuator ev */

+    num_events++; /* the actual event event */

+

+    *xi = calloc(num_events, sizeof(xEvent));

+    if (!(*xi))

+    {

+        return BadAlloc;

+    }

+

+    kbp           = (deviceKeyButtonPointer*)(*xi);

+    kbp->detail   = ev->detail.button;

+    kbp->time     = ev->time;

+    kbp->root     = ev->root;

+    kbp->root_x   = ev->root_x;

+    kbp->root_y   = ev->root_y;

+    kbp->deviceid = ev->deviceid;

+    kbp->state    = ev->corestate;

+    EventSetKeyRepeatFlag((xEvent*)kbp,

+                          (ev->type == ET_KeyPress && ev->key_repeat));

+

+    if (num_events > 1)

+        kbp->deviceid |= MORE_EVENTS;

+

+    switch(ev->type)

+    {

+        case ET_Motion:        kbp->type = DeviceMotionNotify;  break;

+        case ET_ButtonPress:   kbp->type = DeviceButtonPress;   break;

+        case ET_ButtonRelease: kbp->type = DeviceButtonRelease; break;

+        case ET_KeyPress:      kbp->type = DeviceKeyPress;      break;

+        case ET_KeyRelease:    kbp->type = DeviceKeyRelease;    break;

+        case ET_ProximityIn:   kbp->type = ProximityIn;         break;

+        case ET_ProximityOut:  kbp->type = ProximityOut;        break;

+        default:

+            break;

+    }

+

+    if (num_events > 1)

+    {

+        getValuatorEvents(ev, (deviceValuator*)(kbp + 1));

+    }

+

+    *count = num_events;

+    return Success;

+}

+

+

+/**

+ * Set first to the first valuator in the event ev and return the number of

+ * valuators from first to the last set valuator.

+ */

+static int

+countValuators(DeviceEvent *ev, int *first)

+{

+    int first_valuator = -1, last_valuator = -1, num_valuators = 0;

+    int i;

+

+    for (i = 0; i < sizeof(ev->valuators.mask) * 8; i++)

+    {

+        if (BitIsOn(ev->valuators.mask, i))

+        {

+            if (first_valuator == -1)

+                first_valuator = i;

+            last_valuator = i;

+        }

+    }

+

+    if (first_valuator != -1)

+    {

+        num_valuators = last_valuator - first_valuator + 1;

+        *first = first_valuator;

+    }

+

+    return num_valuators;

+}

+

+static int

+getValuatorEvents(DeviceEvent *ev, deviceValuator *xv)

+{

+    int i;

+    int state = 0;

+    int first_valuator, num_valuators;

+

+

+    num_valuators = countValuators(ev, &first_valuator);

+    if (num_valuators > 0)

+    {

+        DeviceIntPtr dev = NULL;

+        dixLookupDevice(&dev, ev->deviceid, serverClient, DixUseAccess);

+        /* State needs to be assembled BEFORE the device is updated. */

+        state = (dev && dev->key) ? XkbStateFieldFromRec(&dev->key->xkbInfo->state) : 0;

+        state |= (dev && dev->button) ? (dev->button->state) : 0;

+    }

+

+    /* FIXME: non-continuous valuator data in internal events*/

+    for (i = 0; i < num_valuators; i += 6, xv++) {

+        xv->type = DeviceValuator;

+        xv->first_valuator = first_valuator + i;

+        xv->num_valuators = ((num_valuators - i) > 6) ? 6 : (num_valuators - i);

+        xv->deviceid = ev->deviceid;

+        xv->device_state = state;

+        switch (xv->num_valuators) {

+        case 6:

+            xv->valuator5 = ev->valuators.data[xv->first_valuator + 5];

+        case 5:

+            xv->valuator4 = ev->valuators.data[xv->first_valuator + 4];

+        case 4:

+            xv->valuator3 = ev->valuators.data[xv->first_valuator + 3];

+        case 3:

+            xv->valuator2 = ev->valuators.data[xv->first_valuator + 2];

+        case 2:

+            xv->valuator1 = ev->valuators.data[xv->first_valuator + 1];

+        case 1:

+            xv->valuator0 = ev->valuators.data[xv->first_valuator + 0];

+        }

+

+        if (i + 6 < num_valuators)

+            xv->deviceid |= MORE_EVENTS;

+    }

+

+    return (num_valuators + 5) / 6;

+}

+

+

+static int

+appendKeyInfo(DeviceChangedEvent *dce, xXIKeyInfo* info)

+{

+    uint32_t *kc;

+    int i;

+

+    info->type = XIKeyClass;

+    info->num_keycodes = dce->keys.max_keycode - dce->keys.min_keycode + 1;

+    info->length = sizeof(xXIKeyInfo)/4 + info->num_keycodes;

+    info->sourceid = dce->sourceid;

+

+    kc = (uint32_t*)&info[1];

+    for (i = 0; i < info->num_keycodes; i++)

+        *kc++ = i + dce->keys.min_keycode;

+

+    return info->length * 4;

+}

+

+static int

+appendButtonInfo(DeviceChangedEvent *dce, xXIButtonInfo *info)

+{

+    unsigned char *bits;

+    int mask_len;

+

+    mask_len = bytes_to_int32(bits_to_bytes(dce->buttons.num_buttons));

+

+    info->type = XIButtonClass;

+    info->num_buttons = dce->buttons.num_buttons;

+    info->length = bytes_to_int32(sizeof(xXIButtonInfo)) +

+                   info->num_buttons + mask_len;

+    info->sourceid = dce->sourceid;

+

+    bits = (unsigned char*)&info[1];

+    memset(bits, 0, mask_len * 4);

+    /* FIXME: is_down? */

+

+    bits += mask_len * 4;

+    memcpy(bits, dce->buttons.names, dce->buttons.num_buttons * sizeof(Atom));

+

+    return info->length * 4;

+}

+

+static int

+appendValuatorInfo(DeviceChangedEvent *dce, xXIValuatorInfo *info, int axisnumber)

+{

+    info->type = XIValuatorClass;

+    info->length = sizeof(xXIValuatorInfo)/4;

+    info->label = dce->valuators[axisnumber].name;

+    info->min.integral = dce->valuators[axisnumber].min;

+    info->min.frac = 0;

+    info->max.integral = dce->valuators[axisnumber].max;

+    info->max.frac = 0;

+    /* FIXME: value */

+    info->value.integral = 0;

+    info->value.frac = 0;

+    info->resolution = dce->valuators[axisnumber].resolution;

+    info->number = axisnumber;

+    info->mode = dce->valuators[axisnumber].mode; /* Server doesn't have per-axis mode yet */

+    info->sourceid = dce->sourceid;

+

+    return info->length * 4;

+}

+

+static int

+eventToDeviceChanged(DeviceChangedEvent *dce, xEvent **xi)

+{

+    xXIDeviceChangedEvent *dcce;

+    int len = sizeof(xXIDeviceChangedEvent);

+    int nkeys;

+    char *ptr;

+

+    if (dce->buttons.num_buttons)

+    {

+        len += sizeof(xXIButtonInfo);

+        len += dce->buttons.num_buttons * sizeof(Atom); /* button names */

+        len += pad_to_int32(bits_to_bytes(dce->buttons.num_buttons));

+    }

+    if (dce->num_valuators)

+        len += sizeof(xXIValuatorInfo) * dce->num_valuators;

+

+    nkeys = (dce->keys.max_keycode > 0) ?

+                dce->keys.max_keycode - dce->keys.min_keycode + 1 : 0;

+    if (nkeys > 0)

+    {

+        len += sizeof(xXIKeyInfo);

+        len += sizeof(CARD32) * nkeys; /* keycodes */

+    }

+

+    dcce = calloc(1, len);

+    if (!dcce)

+    {

+        ErrorF("[Xi] BadAlloc in SendDeviceChangedEvent.\n");

+        return BadAlloc;

+    }

+

+    dcce->type         = GenericEvent;

+    dcce->extension    = IReqCode;

+    dcce->evtype       = XI_DeviceChanged;

+    dcce->time         = dce->time;

+    dcce->deviceid     = dce->deviceid;

+    dcce->sourceid     = dce->sourceid;

+    dcce->reason       = (dce->flags & DEVCHANGE_DEVICE_CHANGE) ? XIDeviceChange : XISlaveSwitch;

+    dcce->num_classes  = 0;

+    dcce->length = bytes_to_int32(len - sizeof(xEvent));

+

+    ptr = (char*)&dcce[1];

+    if (dce->buttons.num_buttons)

+    {

+        dcce->num_classes++;

+        ptr += appendButtonInfo(dce, (xXIButtonInfo*)ptr);

+    }

+

+    if (nkeys)

+    {

+        dcce->num_classes++;

+        ptr += appendKeyInfo(dce, (xXIKeyInfo*)ptr);

+    }

+

+    if (dce->num_valuators)

+    {

+        int i;

+

+        dcce->num_classes += dce->num_valuators;

+        for (i = 0; i < dce->num_valuators; i++)

+            ptr += appendValuatorInfo(dce, (xXIValuatorInfo*)ptr, i);

+    }

+

+    *xi = (xEvent*)dcce;

+

+    return Success;

+}

+

+static int count_bits(unsigned char* ptr, int len)

+{

+    int bits = 0;

+    unsigned int i;

+    unsigned char x;

+

+    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;

+}