Split ChangeMasterDeviceClasses into an extra XISendDeviceChangedEvent that assembles the XI2 wire event for the DeviceChanged event. Re-use this when detaching the last SD. Not quite perfect yet, we still copy the device classes from the slave now rather than from the data we had when the event occured. But it's a start. (We can now unexport SizeDeviceInfo and CopySwapDevices, not needed anymore) Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
444 lines
11 KiB
C
444 lines
11 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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* Authors: Peter Hutterer
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*
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*/
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/**
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* @file Protocol handling for the XIQueryDevice request/reply.
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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 "inputstr.h"
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#include <X11/X.h>
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#include <X11/extensions/XI2proto.h>
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#include "xkbstr.h"
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#include "xkbsrv.h"
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#include "xserver-properties.h"
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#include "exevents.h"
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#include "querydev.h"
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static int ListDeviceInfo(DeviceIntPtr dev, xXIDeviceInfo* info);
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static int SizeDeviceInfo(DeviceIntPtr dev);
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static void SwapDeviceInfo(DeviceIntPtr dev, xXIDeviceInfo* info);
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int
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SProcXIQueryDevice(ClientPtr client)
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{
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char n;
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REQUEST(xXIQueryDeviceReq);
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swaps(&stuff->length, n);
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swaps(&stuff->deviceid, n);
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return ProcXIQueryDevice(client);
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}
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int
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ProcXIQueryDevice(ClientPtr client)
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{
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xXIQueryDeviceReply rep;
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DeviceIntPtr dev = NULL;
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int rc = Success;
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int len = 0;
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char *info, *ptr;
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REQUEST(xXIQueryDeviceReq);
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REQUEST_SIZE_MATCH(xXIQueryDeviceReq);
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if (stuff->deviceid != AllDevices && stuff->deviceid != AllMasterDevices)
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{
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rc = dixLookupDevice(&dev, stuff->deviceid, client, DixGetAttrAccess);
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if (rc != Success)
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{
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client->errorValue = stuff->deviceid;
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return rc;
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}
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}
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if (dev)
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len += SizeDeviceInfo(dev);
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else
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{
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len = 0;
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for (dev = inputInfo.devices; dev; dev = dev->next)
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{
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if (stuff->deviceid == AllDevices ||
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(stuff->deviceid == AllMasterDevices && dev->isMaster))
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len += SizeDeviceInfo(dev);
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}
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for (dev = inputInfo.off_devices; dev; dev = dev->next)
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{
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if (stuff->deviceid == AllDevices ||
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(stuff->deviceid == AllMasterDevices && dev->isMaster))
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len += SizeDeviceInfo(dev);
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}
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dev = NULL;
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}
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info = xcalloc(1, len);
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if (!info)
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return BadAlloc;
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memset(&rep, 0, sizeof(xXIQueryDeviceReply));
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rep.repType = X_Reply;
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rep.RepType = X_XIQueryDevice;
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rep.sequenceNumber = client->sequence;
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rep.length = len/4;
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rep.num_devices = 0;
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ptr = info;
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if (dev)
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{
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len = ListDeviceInfo(dev, (xXIDeviceInfo*)info);
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if (client->swapped)
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SwapDeviceInfo(dev, (xXIDeviceInfo*)info);
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info += len;
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rep.num_devices = 1;
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} else
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{
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for (dev = inputInfo.devices; dev; dev = dev->next)
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{
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if (stuff->deviceid == AllDevices ||
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(stuff->deviceid == AllMasterDevices && dev->isMaster))
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{
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len = ListDeviceInfo(dev, (xXIDeviceInfo*)info);
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if (client->swapped)
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SwapDeviceInfo(dev, (xXIDeviceInfo*)info);
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info += len;
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rep.num_devices++;
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}
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}
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for (dev = inputInfo.off_devices; dev; dev = dev->next)
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{
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if (stuff->deviceid == AllDevices ||
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(stuff->deviceid == AllMasterDevices && dev->isMaster))
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{
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len = ListDeviceInfo(dev, (xXIDeviceInfo*)info);
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if (client->swapped)
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SwapDeviceInfo(dev, (xXIDeviceInfo*)info);
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info += len;
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rep.num_devices++;
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}
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}
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}
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WriteReplyToClient(client, sizeof(xXIQueryDeviceReply), &rep);
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WriteToClient(client, rep.length * 4, ptr);
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return rc;
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}
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void
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SRepXIQueryDevice(ClientPtr client, int size, xXIQueryDeviceReply *rep)
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{
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char n;
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swaps(&rep->sequenceNumber, n);
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swapl(&rep->length, n);
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swaps(&rep->num_devices, n);
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/* Device info is already swapped, see ProcXIQueryDevice */
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WriteToClient(client, size, (char *)rep);
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}
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/**
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* @return The number of bytes needed to store this device's xXIDeviceInfo
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* (and its classes).
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*/
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static int
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SizeDeviceInfo(DeviceIntPtr dev)
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{
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int len = sizeof(xXIDeviceInfo);
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/* 4-padded name */
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len += (((strlen(dev->name) + 3)/4)*4);
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return len + SizeDeviceClasses(dev);
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}
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/*
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* @return The number of bytes needed to store this device's classes.
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*/
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int
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SizeDeviceClasses(DeviceIntPtr dev)
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{
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int len = 0;
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if (dev->button)
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{
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len += sizeof(xXIButtonInfo);
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len += dev->button->numButtons * sizeof(Atom);
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}
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if (dev->key)
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{
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XkbDescPtr xkb = dev->key->xkbInfo->desc;
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len += sizeof(xXIKeyInfo);
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len += (xkb->max_key_code - xkb->min_key_code + 1) * sizeof(uint32_t);
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}
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if (dev->valuator)
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len += sizeof(xXIValuatorInfo) * dev->valuator->numAxes;
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return len;
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}
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/**
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* Write button information into info.
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* @return Number of bytes written into info.
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*/
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int
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ListButtonInfo(DeviceIntPtr dev, xXIButtonInfo* info)
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{
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info->type = ButtonClass;
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info->num_buttons = dev->button->numButtons;
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info->length = 2 + info->num_buttons;
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/** XXX: button labels */
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return info->length * 4;
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}
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static void
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SwapButtonInfo(DeviceIntPtr dev, xXIButtonInfo* info)
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{
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char n;
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Atom *btn;
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int i;
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swaps(&info->type, n);
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swaps(&info->length, n);
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for (i = 0, btn = (Atom*)&info[1]; i < info->num_buttons; i++, btn++)
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swaps(btn, n);
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swaps(&info->num_buttons, n);
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}
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/**
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* Write key information into info.
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* @return Number of bytes written into info.
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*/
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int
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ListKeyInfo(DeviceIntPtr dev, xXIKeyInfo* info)
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{
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int i;
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XkbDescPtr xkb = dev->key->xkbInfo->desc;
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uint32_t *kc;
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info->type = KeyClass;
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info->num_keycodes = xkb->max_key_code - xkb->min_key_code + 1;
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info->length = 2 + info->num_keycodes;
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kc = (uint32_t*)&info[1];
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for (i = xkb->min_key_code; i <= xkb->max_key_code; i++, kc++)
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*kc = i;
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return info->length * 4;
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}
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static void
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SwapKeyInfo(DeviceIntPtr dev, xXIKeyInfo* info)
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{
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char n;
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uint32_t *key;
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int i;
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swaps(&info->type, n);
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swaps(&info->length, n);
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for (i = 0, key = (uint32_t*)&info[1]; i < info->num_keycodes; i++, key++)
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swaps(key, n);
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swaps(&info->num_keycodes, n);
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}
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/**
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* List axis information for the given axis.
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*
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* @return The number of bytes written into info.
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*/
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int
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ListValuatorInfo(DeviceIntPtr dev, xXIValuatorInfo* info, int axisnumber)
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{
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ValuatorClassPtr v = dev->valuator;
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info->type = ValuatorClass;
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info->length = sizeof(xXIValuatorInfo)/4;
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info->name = XIGetKnownProperty(AXIS_LABEL_PROP_REL_MISC); /* XXX */
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info->min.integral = v->axes[axisnumber].min_value;
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info->min.frac = 0;
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info->max.integral = v->axes[axisnumber].max_value;
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info->max.frac = 0;
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info->resolution = v->axes[axisnumber].resolution;
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info->number = axisnumber;
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info->mode = v->mode; /* Server doesn't have per-axis mode yet */
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return info->length * 4;
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}
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static void
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SwapValuatorInfo(DeviceIntPtr dev, xXIValuatorInfo* info)
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{
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char n;
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swaps(&info->type, n);
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swaps(&info->length, n);
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swapl(&info->name, n);
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swapl(&info->min.integral, n);
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swapl(&info->min.frac, n);
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swapl(&info->max.integral, n);
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swapl(&info->max.frac, n);
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swaps(&info->number, n);
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}
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int GetDeviceUse(DeviceIntPtr dev, uint16_t *attachment)
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{
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DeviceIntPtr master = dev->u.master;
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int use;
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if (dev->isMaster)
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{
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DeviceIntPtr paired = GetPairedDevice(dev);
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use = IsPointerDevice(dev) ? MasterPointer : MasterKeyboard;
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*attachment = (paired ? paired->id : 0);
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} else if (master)
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{
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use = IsPointerDevice(master) ? SlavePointer : SlaveKeyboard;
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*attachment = master->id;
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} else
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use = FloatingSlave;
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return use;
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}
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/**
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* Write the info for device dev into the buffer pointed to by info.
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*
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* @return The number of bytes used.
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*/
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static int
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ListDeviceInfo(DeviceIntPtr dev, xXIDeviceInfo* info)
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{
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char *any = (char*)&info[1];
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int len = 0, total_len = 0;
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info->deviceid = dev->id;
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info->use = GetDeviceUse(dev, &info->attachment);
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info->num_classes = 0;
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info->name_len = strlen(dev->name);
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info->enabled = dev->enabled;
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total_len = sizeof(xXIDeviceInfo);
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strncpy(any, dev->name, info->name_len);
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len = ((info->name_len + 3)/4) * 4;
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any += len;
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total_len += len;
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return total_len + ListDeviceClasses(dev, any, &info->num_classes);
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}
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/**
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* Write the class info of the device into the memory pointed to by any, set
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* nclasses to the number of classes in total and return the number of bytes
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* written.
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*/
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int
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ListDeviceClasses(DeviceIntPtr dev, char *any, uint16_t *nclasses)
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{
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int total_len = 0;
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int len;
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int i;
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if (dev->button)
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{
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(*nclasses)++;
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len = ListButtonInfo(dev, (xXIButtonInfo*)any);
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any += len;
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total_len += len;
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}
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if (dev->key)
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{
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(*nclasses)++;
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len = ListKeyInfo(dev, (xXIKeyInfo*)any);
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any += len;
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total_len += len;
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}
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for (i = 0; dev->valuator && i < dev->valuator->numAxes; i++)
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{
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(*nclasses)++;
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len = ListValuatorInfo(dev, (xXIValuatorInfo*)any, i);
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any += len;
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total_len += len;
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}
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return total_len;
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}
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static void
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SwapDeviceInfo(DeviceIntPtr dev, xXIDeviceInfo* info)
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{
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char n;
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char *any = (char*)&info[1];
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int i;
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/* Skip over name */
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any += (((info->name_len + 3)/4) * 4);
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for (i = 0; i < info->num_classes; i++)
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{
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switch(((xXIAnyInfo*)any)->type)
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{
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case ButtonClass:
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SwapButtonInfo(dev, (xXIButtonInfo*)any);
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break;
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case KeyClass:
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SwapKeyInfo(dev, (xXIKeyInfo*)any);
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break;
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case ValuatorClass:
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SwapValuatorInfo(dev, (xXIValuatorInfo*)any);
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break;
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}
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any += (((xXIAnyInfo*)any)->length * 4);
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}
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swaps(&info->deviceid, n);
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swaps(&info->use, n);
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swaps(&info->attachment, n);
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swaps(&info->num_classes, n);
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swaps(&info->name_len, n);
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}
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