From a915739887477b28d924ecc8417ee107d125bd6c Mon Sep 17 00:00:00 2001 From: marha Date: Sun, 6 Sep 2009 18:48:27 +0000 Subject: Switched to xorg-server-1.6.99.900.tar.gz --- xorg-server/Xi/xiquerydevice.c | 487 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 487 insertions(+) create mode 100644 xorg-server/Xi/xiquerydevice.c (limited to 'xorg-server/Xi/xiquerydevice.c') diff --git a/xorg-server/Xi/xiquerydevice.c b/xorg-server/Xi/xiquerydevice.c new file mode 100644 index 000000000..68d91fa87 --- /dev/null +++ b/xorg-server/Xi/xiquerydevice.c @@ -0,0 +1,487 @@ +/* + * 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. + * + * Authors: Peter Hutterer + * + */ + +/** + * @file Protocol handling for the XIQueryDevice request/reply. + */ + +#ifdef HAVE_DIX_CONFIG_H +#include +#endif + +#include "inputstr.h" +#include +#include +#include +#include "xkbstr.h" +#include "xkbsrv.h" +#include "xserver-properties.h" +#include "exevents.h" +#include "xace.h" + +#include "xiquerydevice.h" + +static Bool ShouldSkipDevice(ClientPtr client, int deviceid, DeviceIntPtr d); +static int ListDeviceInfo(DeviceIntPtr dev, xXIDeviceInfo* info); +static int SizeDeviceInfo(DeviceIntPtr dev); +static void SwapDeviceInfo(DeviceIntPtr dev, xXIDeviceInfo* info); +int +SProcXIQueryDevice(ClientPtr client) +{ + char n; + + REQUEST(xXIQueryDeviceReq); + + swaps(&stuff->length, n); + swaps(&stuff->deviceid, n); + + return ProcXIQueryDevice(client); +} + +int +ProcXIQueryDevice(ClientPtr client) +{ + xXIQueryDeviceReply rep; + DeviceIntPtr dev = NULL; + int rc = Success; + int i = 0, len = 0; + char *info, *ptr; + Bool *skip = NULL; + + REQUEST(xXIQueryDeviceReq); + REQUEST_SIZE_MATCH(xXIQueryDeviceReq); + + if (stuff->deviceid != XIAllDevices && stuff->deviceid != XIAllMasterDevices) + { + rc = dixLookupDevice(&dev, stuff->deviceid, client, DixGetAttrAccess); + if (rc != Success) + { + client->errorValue = stuff->deviceid; + return rc; + } + len += SizeDeviceInfo(dev); + } + else + { + skip = xcalloc(sizeof(Bool), inputInfo.numDevices); + if (!skip) + return BadAlloc; + + for (dev = inputInfo.devices; dev; dev = dev->next, i++) + { + skip[i] = ShouldSkipDevice(client, stuff->deviceid, dev); + if (!skip[i]) + len += SizeDeviceInfo(dev); + } + + for (dev = inputInfo.off_devices; dev; dev = dev->next, i++) + { + skip[i] = ShouldSkipDevice(client, stuff->deviceid, dev); + if (!skip[i]) + len += SizeDeviceInfo(dev); + } + } + + info = xcalloc(1, len); + if (!info) + return BadAlloc; + + memset(&rep, 0, sizeof(xXIQueryDeviceReply)); + rep.repType = X_Reply; + rep.RepType = X_XIQueryDevice; + rep.sequenceNumber = client->sequence; + rep.length = len/4; + rep.num_devices = 0; + + ptr = info; + if (dev) + { + len = ListDeviceInfo(dev, (xXIDeviceInfo*)info); + if (client->swapped) + SwapDeviceInfo(dev, (xXIDeviceInfo*)info); + info += len; + rep.num_devices = 1; + } else + { + i = 0; + for (dev = inputInfo.devices; dev; dev = dev->next, i++) + { + if (!skip[i]) + { + len = ListDeviceInfo(dev, (xXIDeviceInfo*)info); + if (client->swapped) + SwapDeviceInfo(dev, (xXIDeviceInfo*)info); + info += len; + rep.num_devices++; + } + } + + for (dev = inputInfo.off_devices; dev; dev = dev->next, i++) + { + if (!skip[i]) + { + len = ListDeviceInfo(dev, (xXIDeviceInfo*)info); + if (client->swapped) + SwapDeviceInfo(dev, (xXIDeviceInfo*)info); + info += len; + rep.num_devices++; + } + } + } + + WriteReplyToClient(client, sizeof(xXIQueryDeviceReply), &rep); + WriteToClient(client, rep.length * 4, ptr); + xfree(ptr); + xfree(skip); + return rc; +} + +void +SRepXIQueryDevice(ClientPtr client, int size, xXIQueryDeviceReply *rep) +{ + char n; + + swaps(&rep->sequenceNumber, n); + swapl(&rep->length, n); + swaps(&rep->num_devices, n); + + /* Device info is already swapped, see ProcXIQueryDevice */ + + WriteToClient(client, size, (char *)rep); +} + + +/** + * @return Whether the device should be included in the returned list. + */ +static Bool +ShouldSkipDevice(ClientPtr client, int deviceid, DeviceIntPtr dev) +{ + /* if all devices are not being queried, only master devices are */ + if (deviceid == XIAllDevices || IsMaster(dev)) + { + int rc = XaceHook(XACE_DEVICE_ACCESS, client, dev, DixGetAttrAccess); + if (rc == Success) + return FALSE; + } + return TRUE; +} + +/** + * @return The number of bytes needed to store this device's xXIDeviceInfo + * (and its classes). + */ +static int +SizeDeviceInfo(DeviceIntPtr dev) +{ + int len = sizeof(xXIDeviceInfo); + + /* 4-padded name */ + len += pad_to_int32(strlen(dev->name)); + + return len + SizeDeviceClasses(dev); + +} + +/* + * @return The number of bytes needed to store this device's classes. + */ +int +SizeDeviceClasses(DeviceIntPtr dev) +{ + int len = 0; + + if (dev->button) + { + len += sizeof(xXIButtonInfo); + len += dev->button->numButtons * sizeof(Atom); + len += pad_to_int32(bits_to_bytes(dev->button->numButtons)); + } + + if (dev->key) + { + XkbDescPtr xkb = dev->key->xkbInfo->desc; + len += sizeof(xXIKeyInfo); + len += (xkb->max_key_code - xkb->min_key_code + 1) * sizeof(uint32_t); + } + + if (dev->valuator) + len += sizeof(xXIValuatorInfo) * dev->valuator->numAxes; + + return len; +} + + +/** + * Write button information into info. + * @return Number of bytes written into info. + */ +int +ListButtonInfo(DeviceIntPtr dev, xXIButtonInfo* info) +{ + unsigned char *bits; + int mask_len; + int i; + + mask_len = bytes_to_int32(bits_to_bytes(dev->button->numButtons)); + + info->type = ButtonClass; + info->num_buttons = dev->button->numButtons; + info->length = bytes_to_int32(sizeof(xXIButtonInfo)) + + info->num_buttons + mask_len; + info->sourceid = dev->button->sourceid; + + bits = (unsigned char*)&info[1]; + memset(bits, 0, mask_len * 4); + + for (i = 0; dev && dev->button && i < dev->button->numButtons; i++) + if (BitIsOn(dev->button->down, i)) + SetBit(bits, i); + bits += mask_len * 4; + memcpy(bits, dev->button->labels, dev->button->numButtons * sizeof(Atom)); + + return info->length * 4; +} + +static void +SwapButtonInfo(DeviceIntPtr dev, xXIButtonInfo* info) +{ + char n; + Atom *btn; + int i; + swaps(&info->type, n); + swaps(&info->length, n); + swaps(&info->sourceid, n); + + for (i = 0, btn = (Atom*)&info[1]; i < info->num_buttons; i++, btn++) + swaps(btn, n); + + swaps(&info->num_buttons, n); +} + +/** + * Write key information into info. + * @return Number of bytes written into info. + */ +int +ListKeyInfo(DeviceIntPtr dev, xXIKeyInfo* info) +{ + int i; + XkbDescPtr xkb = dev->key->xkbInfo->desc; + uint32_t *kc; + + info->type = KeyClass; + info->num_keycodes = xkb->max_key_code - xkb->min_key_code + 1; + info->length = sizeof(xXIKeyInfo)/4 + info->num_keycodes; + info->sourceid = dev->key->sourceid; + + kc = (uint32_t*)&info[1]; + for (i = xkb->min_key_code; i <= xkb->max_key_code; i++, kc++) + *kc = i; + + return info->length * 4; +} + +static void +SwapKeyInfo(DeviceIntPtr dev, xXIKeyInfo* info) +{ + char n; + uint32_t *key; + int i; + swaps(&info->type, n); + swaps(&info->length, n); + swaps(&info->sourceid, n); + + for (i = 0, key = (uint32_t*)&info[1]; i < info->num_keycodes; i++, key++) + swapl(key, n); + + swaps(&info->num_keycodes, n); +} + +/** + * List axis information for the given axis. + * + * @return The number of bytes written into info. + */ +int +ListValuatorInfo(DeviceIntPtr dev, xXIValuatorInfo* info, int axisnumber) +{ + ValuatorClassPtr v = dev->valuator; + + info->type = ValuatorClass; + info->length = sizeof(xXIValuatorInfo)/4; + info->label = v->axes[axisnumber].label; + info->min.integral = v->axes[axisnumber].min_value; + info->min.frac = 0; + info->max.integral = v->axes[axisnumber].max_value; + info->max.frac = 0; + info->value.integral = (int)v->axisVal[axisnumber]; + info->value.frac = (int)(v->axisVal[axisnumber] * (1 << 16) * (1 << 16)); + info->resolution = v->axes[axisnumber].resolution; + info->number = axisnumber; + info->mode = v->mode; /* Server doesn't have per-axis mode yet */ + info->sourceid = v->sourceid; + + return info->length * 4; +} + +static void +SwapValuatorInfo(DeviceIntPtr dev, xXIValuatorInfo* info) +{ + char n; + swaps(&info->type, n); + swaps(&info->length, n); + swapl(&info->label, n); + swapl(&info->min.integral, n); + swapl(&info->min.frac, n); + swapl(&info->max.integral, n); + swapl(&info->max.frac, n); + swaps(&info->number, n); + swaps(&info->sourceid, n); +} + +int GetDeviceUse(DeviceIntPtr dev, uint16_t *attachment) +{ + DeviceIntPtr master = dev->u.master; + int use; + + if (IsMaster(dev)) + { + DeviceIntPtr paired = GetPairedDevice(dev); + use = IsPointerDevice(dev) ? XIMasterPointer : XIMasterKeyboard; + *attachment = (paired ? paired->id : 0); + } else if (master) + { + use = IsPointerDevice(master) ? XISlavePointer : XISlaveKeyboard; + *attachment = master->id; + } else + use = XIFloatingSlave; + + return use; +} + +/** + * Write the info for device dev into the buffer pointed to by info. + * + * @return The number of bytes used. + */ +static int +ListDeviceInfo(DeviceIntPtr dev, xXIDeviceInfo* info) +{ + char *any = (char*)&info[1]; + int len = 0, total_len = 0; + + info->deviceid = dev->id; + info->use = GetDeviceUse(dev, &info->attachment); + info->num_classes = 0; + info->name_len = strlen(dev->name); + info->enabled = dev->enabled; + total_len = sizeof(xXIDeviceInfo); + + len = pad_to_int32(info->name_len); + memset(any, 0, len); + strncpy(any, dev->name, info->name_len); + any += len; + total_len += len; + + return total_len + ListDeviceClasses(dev, any, &info->num_classes); +} + +/** + * Write the class info of the device into the memory pointed to by any, set + * nclasses to the number of classes in total and return the number of bytes + * written. + */ +int +ListDeviceClasses(DeviceIntPtr dev, char *any, uint16_t *nclasses) +{ + int total_len = 0; + int len; + int i; + + if (dev->button) + { + (*nclasses)++; + len = ListButtonInfo(dev, (xXIButtonInfo*)any); + any += len; + total_len += len; + } + + if (dev->key) + { + (*nclasses)++; + len = ListKeyInfo(dev, (xXIKeyInfo*)any); + any += len; + total_len += len; + } + + for (i = 0; dev->valuator && i < dev->valuator->numAxes; i++) + { + (*nclasses)++; + len = ListValuatorInfo(dev, (xXIValuatorInfo*)any, i); + any += len; + total_len += len; + } + + return total_len; +} + +static void +SwapDeviceInfo(DeviceIntPtr dev, xXIDeviceInfo* info) +{ + char n; + char *any = (char*)&info[1]; + int i; + + /* Skip over name */ + any += pad_to_int32(info->name_len); + + for (i = 0; i < info->num_classes; i++) + { + int len = ((xXIAnyInfo*)any)->length; + switch(((xXIAnyInfo*)any)->type) + { + case XIButtonClass: + SwapButtonInfo(dev, (xXIButtonInfo*)any); + break; + case XIKeyClass: + SwapKeyInfo(dev, (xXIKeyInfo*)any); + break; + case XIValuatorClass: + SwapValuatorInfo(dev, (xXIValuatorInfo*)any); + break; + } + + any += len * 4; + } + + swaps(&info->deviceid, n); + swaps(&info->use, n); + swaps(&info->attachment, n); + swaps(&info->num_classes, n); + swaps(&info->name_len, n); + +} -- cgit v1.2.3