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authormarha <marha@users.sourceforge.net>2009-07-25 20:12:58 +0000
committermarha <marha@users.sourceforge.net>2009-07-25 20:12:58 +0000
commit2553bdd7c359cd87525d367761c86932cec5adff (patch)
treeae71245933c98474a699d3e392de5820879b2018 /xorg-server/Xi/xiproperty.c
parente2c51f2ee7b0a3ea1a052fc49324057b4a4bbc78 (diff)
parent4a3dbb926ae3f5410198d7cc4f4ebe4f62eebf05 (diff)
downloadvcxsrv-2553bdd7c359cd87525d367761c86932cec5adff.tar.gz
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svn merge file:///D:/svnrepos/vcxsrv/branches/released .
Diffstat (limited to 'xorg-server/Xi/xiproperty.c')
-rw-r--r--xorg-server/Xi/xiproperty.c918
1 files changed, 918 insertions, 0 deletions
diff --git a/xorg-server/Xi/xiproperty.c b/xorg-server/Xi/xiproperty.c
new file mode 100644
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+++ b/xorg-server/Xi/xiproperty.c
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+/*
+ * Copyright © 2006 Keith Packard
+ * Copyright © 2008 Peter Hutterer
+ *
+ * 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 WAXIANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WAXIANTIES 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.
+ *
+ */
+
+/* This code is a modified version of randr/rrproperty.c */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include "dix.h"
+#include "inputstr.h"
+#include <X11/extensions/XI.h>
+#include <X11/Xatom.h>
+#include <X11/extensions/XIproto.h>
+#include "exglobals.h"
+#include "exevents.h"
+#include "swaprep.h"
+
+#include "xiproperty.h"
+#include "xserver-properties.h"
+
+/**
+ * Properties used or alloced from inside the server.
+ */
+static struct dev_properties
+{
+ Atom type;
+ char *name;
+} dev_properties[] = {
+ {0, XI_PROP_ENABLED},
+ {0, XATOM_FLOAT}
+};
+
+static long XIPropHandlerID = 1;
+
+/**
+ * Return the type assigned to the specified atom or 0 if the atom isn't known
+ * to the DIX.
+ *
+ * If name is NULL, None is returned.
+ */
+_X_EXPORT Atom
+XIGetKnownProperty(char *name)
+{
+ int i;
+
+ if (!name)
+ return None;
+
+ for (i = 0; i < (sizeof(dev_properties)/sizeof(struct dev_properties)); i++)
+ {
+ if (strcmp(name, dev_properties[i].name) == 0)
+ return dev_properties[i].type;
+ }
+
+ return 0;
+}
+
+/**
+ * Convert the given property's value(s) into @nelem_return integer values and
+ * store them in @buf_return. If @nelem_return is larger than the number of
+ * values in the property, @nelem_return is set to the number of values in the
+ * property.
+ *
+ * If *@buf_return is NULL and @nelem_return is 0, memory is allocated
+ * automatically and must be freed by the caller.
+ *
+ * Possible return codes.
+ * Success ... No error.
+ * BadMatch ... Wrong atom type, atom is not XA_INTEGER
+ * BadAlloc ... NULL passed as buffer and allocation failed.
+ * BadLength ... @buff is NULL but @nelem_return is non-zero.
+ *
+ * @param val The property value
+ * @param nelem_return The maximum number of elements to return.
+ * @param buf_return Pointer to an array of at least @nelem_return values.
+ * @return Success or the error code if an error occured.
+ */
+_X_EXPORT int
+XIPropToInt(XIPropertyValuePtr val, int *nelem_return, int **buf_return)
+{
+ int i;
+ int *buf;
+
+ if (val->type != XA_INTEGER)
+ return BadMatch;
+ if (!*buf_return && *nelem_return)
+ return BadLength;
+
+ switch(val->format)
+ {
+ case 8:
+ case 16:
+ case 32:
+ break;
+ default:
+ return BadValue;
+ }
+
+ buf = *buf_return;
+
+ if (!buf && !(*nelem_return))
+ {
+ buf = xcalloc(val->size, sizeof(int));
+ if (!buf)
+ return BadAlloc;
+ *buf_return = buf;
+ *nelem_return = val->size;
+ } else if (val->size < *nelem_return)
+ *nelem_return = val->size;
+
+ for (i = 0; i < val->size && i < *nelem_return; i++)
+ {
+ switch(val->format)
+ {
+ case 8: buf[i] = ((CARD8*)val->data)[i]; break;
+ case 16: buf[i] = ((CARD16*)val->data)[i]; break;
+ case 32: buf[i] = ((CARD32*)val->data)[i]; break;
+ }
+ }
+
+ return Success;
+}
+
+/**
+ * Convert the given property's value(s) into @nelem_return float values and
+ * store them in @buf_return. If @nelem_return is larger than the number of
+ * values in the property, @nelem_return is set to the number of values in the
+ * property.
+ *
+ * If *@buf_return is NULL and @nelem_return is 0, memory is allocated
+ * automatically and must be freed by the caller.
+ *
+ * Possible errors returned:
+ * Success
+ * BadMatch ... Wrong atom type, atom is not XA_FLOAT
+ * BadValue ... Wrong format, format is not 32
+ * BadAlloc ... NULL passed as buffer and allocation failed.
+ * BadLength ... @buff is NULL but @nelem_return is non-zero.
+ *
+ * @param val The property value
+ * @param nelem_return The maximum number of elements to return.
+ * @param buf_return Pointer to an array of at least @nelem_return values.
+ * @return Success or the error code if an error occured.
+ */
+_X_EXPORT int
+XIPropToFloat(XIPropertyValuePtr val, int *nelem_return, float **buf_return)
+{
+ int i;
+ float *buf;
+
+ if (!val->type || val->type != XIGetKnownProperty(XATOM_FLOAT))
+ return BadMatch;
+
+ if (val->format != 32)
+ return BadValue;
+ if (!*buf_return && *nelem_return)
+ return BadLength;
+
+ buf = *buf_return;
+
+ if (!buf && !(*nelem_return))
+ {
+ buf = xcalloc(val->size, sizeof(float));
+ if (!buf)
+ return BadAlloc;
+ *buf_return = buf;
+ *nelem_return = val->size;
+ } else if (val->size < *nelem_return)
+ *nelem_return = val->size;
+
+ for (i = 0; i < val->size && i < *nelem_return; i++)
+ buf[i] = ((float*)val->data)[i];
+
+ return Success;
+}
+
+/**
+ * Init those properties that are allocated by the server and most likely used
+ * by the DIX or the DDX.
+ */
+void
+XIInitKnownProperties(void)
+{
+ int i;
+ for (i = 0; i < (sizeof(dev_properties)/sizeof(struct dev_properties)); i++)
+ {
+ dev_properties[i].type =
+ MakeAtom(dev_properties[i].name,
+ strlen(dev_properties[i].name),
+ TRUE);
+ }
+}
+
+
+/* Registers a new property handler on the given device and returns a unique
+ * identifier for this handler. This identifier is required to unregister the
+ * property handler again.
+ * @return The handler's identifier or 0 if an error occured.
+ */
+long
+XIRegisterPropertyHandler(DeviceIntPtr dev,
+ int (*SetProperty) (DeviceIntPtr dev,
+ Atom property,
+ XIPropertyValuePtr prop,
+ BOOL checkonly),
+ int (*GetProperty) (DeviceIntPtr dev,
+ Atom property),
+ int (*DeleteProperty) (DeviceIntPtr dev,
+ Atom property))
+{
+ XIPropertyHandlerPtr new_handler;
+
+ new_handler = xcalloc(1, sizeof(XIPropertyHandler));
+ if (!new_handler)
+ return 0;
+
+ new_handler->id = XIPropHandlerID++;
+ new_handler->SetProperty = SetProperty;
+ new_handler->GetProperty = GetProperty;
+ new_handler->DeleteProperty = DeleteProperty;
+ new_handler->next = dev->properties.handlers;
+ dev->properties.handlers = new_handler;
+
+ return new_handler->id;
+}
+
+void
+XIUnregisterPropertyHandler(DeviceIntPtr dev, long id)
+{
+ XIPropertyHandlerPtr curr, prev = NULL;
+
+ curr = dev->properties.handlers;
+ while(curr && curr->id != id)
+ {
+ prev = curr;
+ curr = curr->next;
+ }
+
+ if (!curr)
+ return;
+
+ if (!prev) /* first one */
+ dev->properties.handlers = curr->next;
+ else
+ prev->next = curr->next;
+
+ xfree(curr);
+}
+
+static XIPropertyPtr
+XICreateDeviceProperty (Atom property)
+{
+ XIPropertyPtr prop;
+
+ prop = (XIPropertyPtr)xalloc(sizeof(XIPropertyRec));
+ if (!prop)
+ return NULL;
+
+ prop->next = NULL;
+ prop->propertyName = property;
+ prop->value.type = None;
+ prop->value.format = 0;
+ prop->value.size = 0;
+ prop->value.data = NULL;
+ prop->deletable = TRUE;
+
+ return prop;
+}
+
+static XIPropertyPtr
+XIFetchDeviceProperty(DeviceIntPtr dev, Atom property)
+{
+ XIPropertyPtr prop;
+
+ for (prop = dev->properties.properties; prop; prop = prop->next)
+ if (prop->propertyName == property)
+ return prop;
+ return NULL;
+}
+
+static void
+XIDestroyDeviceProperty (XIPropertyPtr prop)
+{
+ if (prop->value.data)
+ xfree(prop->value.data);
+ xfree(prop);
+}
+
+/* This function destroys all of the device's property-related stuff,
+ * including removing all device handlers.
+ * DO NOT CALL FROM THE DRIVER.
+ */
+void
+XIDeleteAllDeviceProperties (DeviceIntPtr device)
+{
+ XIPropertyPtr prop, next;
+ XIPropertyHandlerPtr curr_handler, next_handler;
+ devicePropertyNotify event;
+
+ for (prop = device->properties.properties; prop; prop = next)
+ {
+ next = prop->next;
+
+ event.type = DevicePropertyNotify;
+ event.deviceid = device->id;
+ event.state = PropertyDelete;
+ event.atom = prop->propertyName;
+ event.time = currentTime.milliseconds;
+ SendEventToAllWindows(device, DevicePropertyNotifyMask,
+ (xEvent*)&event, 1);
+
+ XIDestroyDeviceProperty(prop);
+ }
+
+ /* Now free all handlers */
+ curr_handler = device->properties.handlers;
+ while(curr_handler)
+ {
+ next_handler = curr_handler->next;
+ xfree(curr_handler);
+ curr_handler = next_handler;
+ }
+}
+
+
+int
+XIDeleteDeviceProperty (DeviceIntPtr device, Atom property, Bool fromClient)
+{
+ XIPropertyPtr prop, *prev;
+ devicePropertyNotify event;
+ int rc = Success;
+
+ for (prev = &device->properties.properties; (prop = *prev); prev = &(prop->next))
+ if (prop->propertyName == property)
+ break;
+
+ if (fromClient && !prop->deletable)
+ return BadAccess;
+
+ /* Ask handlers if we may delete the property */
+ if (device->properties.handlers)
+ {
+ XIPropertyHandlerPtr handler = device->properties.handlers;
+ while(handler)
+ {
+ if (handler->DeleteProperty)
+ rc = handler->DeleteProperty(device, prop->propertyName);
+ if (rc != Success)
+ return (rc);
+ handler = handler->next;
+ }
+ }
+
+ if (prop)
+ {
+ *prev = prop->next;
+ event.type = DevicePropertyNotify;
+ event.deviceid = device->id;
+ event.state = PropertyDelete;
+ event.atom = prop->propertyName;
+ event.time = currentTime.milliseconds;
+ SendEventToAllWindows(device, DevicePropertyNotifyMask,
+ (xEvent*)&event, 1);
+ XIDestroyDeviceProperty (prop);
+ }
+
+ return Success;
+}
+
+int
+XIChangeDeviceProperty (DeviceIntPtr dev, Atom property, Atom type,
+ int format, int mode, unsigned long len,
+ pointer value, Bool sendevent)
+{
+ XIPropertyPtr prop;
+ devicePropertyNotify event;
+ int size_in_bytes;
+ int total_size;
+ unsigned long total_len;
+ XIPropertyValuePtr prop_value;
+ XIPropertyValueRec new_value;
+ Bool add = FALSE;
+ int rc;
+
+ size_in_bytes = format >> 3;
+
+ /* first see if property already exists */
+ prop = XIFetchDeviceProperty (dev, property);
+ if (!prop) /* just add to list */
+ {
+ prop = XICreateDeviceProperty (property);
+ if (!prop)
+ return(BadAlloc);
+ add = TRUE;
+ mode = PropModeReplace;
+ }
+ prop_value = &prop->value;
+
+ /* To append or prepend to a property the request format and type
+ must match those of the already defined property. The
+ existing format and type are irrelevant when using the mode
+ "PropModeReplace" since they will be written over. */
+
+ if ((format != prop_value->format) && (mode != PropModeReplace))
+ return(BadMatch);
+ if ((prop_value->type != type) && (mode != PropModeReplace))
+ return(BadMatch);
+ new_value = *prop_value;
+ if (mode == PropModeReplace)
+ total_len = len;
+ else
+ total_len = prop_value->size + len;
+
+ if (mode == PropModeReplace || len > 0)
+ {
+ pointer new_data = NULL, old_data = NULL;
+
+ total_size = total_len * size_in_bytes;
+ new_value.data = (pointer)xalloc (total_size);
+ if (!new_value.data && total_size)
+ {
+ if (add)
+ XIDestroyDeviceProperty (prop);
+ return BadAlloc;
+ }
+ new_value.size = len;
+ new_value.type = type;
+ new_value.format = format;
+
+ switch (mode) {
+ case PropModeReplace:
+ new_data = new_value.data;
+ old_data = NULL;
+ break;
+ case PropModeAppend:
+ new_data = (pointer) (((char *) new_value.data) +
+ (prop_value->size * size_in_bytes));
+ old_data = new_value.data;
+ break;
+ case PropModePrepend:
+ new_data = new_value.data;
+ old_data = (pointer) (((char *) new_value.data) +
+ (prop_value->size * size_in_bytes));
+ break;
+ }
+ if (new_data)
+ memcpy ((char *) new_data, (char *) value, len * size_in_bytes);
+ if (old_data)
+ memcpy ((char *) old_data, (char *) prop_value->data,
+ prop_value->size * size_in_bytes);
+
+ if (dev->properties.handlers)
+ {
+ XIPropertyHandlerPtr handler;
+ BOOL checkonly = TRUE;
+ /* run through all handlers with checkonly TRUE, then again with
+ * checkonly FALSE. Handlers MUST return error codes on the
+ * checkonly run, errors on the second run are ignored */
+ do
+ {
+ handler = dev->properties.handlers;
+ while(handler)
+ {
+ if (handler->SetProperty)
+ {
+ rc = handler->SetProperty(dev, prop->propertyName,
+ &new_value, checkonly);
+ if (checkonly && rc != Success)
+ {
+ if (new_value.data)
+ xfree (new_value.data);
+ return (rc);
+ }
+ }
+ handler = handler->next;
+ }
+ checkonly = !checkonly;
+ } while (!checkonly);
+ }
+ if (prop_value->data)
+ xfree (prop_value->data);
+ *prop_value = new_value;
+ } else if (len == 0)
+ {
+ /* do nothing */
+ }
+
+ if (add)
+ {
+ prop->next = dev->properties.properties;
+ dev->properties.properties = prop;
+ }
+
+ if (sendevent)
+ {
+ event.type = DevicePropertyNotify;
+ event.deviceid = dev->id;
+ event.state = PropertyNewValue;
+ event.atom = prop->propertyName;
+ event.time = currentTime.milliseconds;
+ SendEventToAllWindows(dev, DevicePropertyNotifyMask,
+ (xEvent*)&event, 1);
+ }
+ return(Success);
+}
+
+int
+XIGetDeviceProperty (DeviceIntPtr dev, Atom property, XIPropertyValuePtr *value)
+{
+ XIPropertyPtr prop = XIFetchDeviceProperty (dev, property);
+ int rc;
+
+ if (!prop)
+ {
+ *value = NULL;
+ return BadAtom;
+ }
+
+ /* If we can, try to update the property value first */
+ if (dev->properties.handlers)
+ {
+ XIPropertyHandlerPtr handler = dev->properties.handlers;
+ while(handler)
+ {
+ if (handler->GetProperty)
+ {
+ rc = handler->GetProperty(dev, prop->propertyName);
+ if (rc != Success)
+ {
+ *value = NULL;
+ return rc;
+ }
+ }
+ handler = handler->next;
+ }
+ }
+
+ *value = &prop->value;
+ return Success;
+}
+
+int
+XISetDevicePropertyDeletable(DeviceIntPtr dev, Atom property, Bool deletable)
+{
+ XIPropertyPtr prop = XIFetchDeviceProperty(dev, property);
+
+ if (!prop)
+ return BadAtom;
+
+ prop->deletable = deletable;
+ return Success;
+}
+
+int
+ProcXListDeviceProperties (ClientPtr client)
+{
+ Atom *pAtoms = NULL, *temppAtoms;
+ xListDevicePropertiesReply rep;
+ int numProps = 0;
+ DeviceIntPtr dev;
+ XIPropertyPtr prop;
+ int rc = Success;
+
+ REQUEST(xListDevicePropertiesReq);
+ REQUEST_SIZE_MATCH(xListDevicePropertiesReq);
+
+ rc = dixLookupDevice (&dev, stuff->deviceid, client, DixReadAccess);
+ if (rc != Success)
+ return rc;
+
+ for (prop = dev->properties.properties; prop; prop = prop->next)
+ numProps++;
+ if (numProps)
+ if(!(pAtoms = (Atom *)xalloc(numProps * sizeof(Atom))))
+ return(BadAlloc);
+
+ rep.repType = X_Reply;
+ rep.RepType = X_ListDeviceProperties;
+ rep.length = (numProps * sizeof(Atom)) >> 2;
+ rep.sequenceNumber = client->sequence;
+ rep.nAtoms = numProps;
+ temppAtoms = pAtoms;
+ for (prop = dev->properties.properties; prop; prop = prop->next)
+ *temppAtoms++ = prop->propertyName;
+
+ WriteReplyToClient(client, sizeof(xListDevicePropertiesReply), &rep);
+ if (numProps)
+ {
+ client->pSwapReplyFunc = (ReplySwapPtr)Swap32Write;
+ WriteSwappedDataToClient(client, numProps * sizeof(Atom), pAtoms);
+ xfree(pAtoms);
+ }
+ return rc;
+}
+
+int
+ProcXChangeDeviceProperty (ClientPtr client)
+{
+ REQUEST(xChangeDevicePropertyReq);
+ DeviceIntPtr dev;
+ char format, mode;
+ unsigned long len;
+ int sizeInBytes;
+ int totalSize;
+ int rc;
+
+ REQUEST_AT_LEAST_SIZE(xChangeDevicePropertyReq);
+ UpdateCurrentTime();
+ format = stuff->format;
+ mode = stuff->mode;
+ if ((mode != PropModeReplace) && (mode != PropModeAppend) &&
+ (mode != PropModePrepend))
+ {
+ client->errorValue = mode;
+ return BadValue;
+ }
+ if ((format != 8) && (format != 16) && (format != 32))
+ {
+ client->errorValue = format;
+ return BadValue;
+ }
+ len = stuff->nUnits;
+ if (len > ((0xffffffff - sizeof(xChangeDevicePropertyReq)) >> 2))
+ return BadLength;
+ sizeInBytes = format>>3;
+ totalSize = len * sizeInBytes;
+ REQUEST_FIXED_SIZE(xChangeDevicePropertyReq, totalSize);
+
+ rc = dixLookupDevice (&dev, stuff->deviceid, client, DixWriteAccess);
+ if (rc != Success)
+ return rc;
+
+ if (!ValidAtom(stuff->property))
+ {
+ client->errorValue = stuff->property;
+ return(BadAtom);
+ }
+ if (!ValidAtom(stuff->type))
+ {
+ client->errorValue = stuff->type;
+ return(BadAtom);
+ }
+
+ rc = XIChangeDeviceProperty(dev, stuff->property,
+ stuff->type, (int)format,
+ (int)mode, len, (pointer)&stuff[1], TRUE);
+
+ if (rc != Success)
+ client->errorValue = stuff->property;
+ return rc;
+}
+
+int
+ProcXDeleteDeviceProperty (ClientPtr client)
+{
+ REQUEST(xDeleteDevicePropertyReq);
+ DeviceIntPtr dev;
+ int rc;
+
+ REQUEST_SIZE_MATCH(xDeleteDevicePropertyReq);
+ UpdateCurrentTime();
+ rc = dixLookupDevice (&dev, stuff->deviceid, client, DixWriteAccess);
+ if (rc != Success)
+ return rc;
+
+ if (!ValidAtom(stuff->property))
+ {
+ client->errorValue = stuff->property;
+ return (BadAtom);
+ }
+
+ rc = XIDeleteDeviceProperty(dev, stuff->property, TRUE);
+ return rc;
+}
+
+int
+ProcXGetDeviceProperty (ClientPtr client)
+{
+ REQUEST(xGetDevicePropertyReq);
+ XIPropertyPtr prop, *prev;
+ XIPropertyValuePtr prop_value;
+ unsigned long n, len, ind;
+ DeviceIntPtr dev;
+ xGetDevicePropertyReply reply;
+ int rc;
+
+ REQUEST_SIZE_MATCH(xGetDevicePropertyReq);
+ if (stuff->delete)
+ UpdateCurrentTime();
+ rc = dixLookupDevice (&dev, stuff->deviceid, client,
+ stuff->delete ? DixWriteAccess :
+ DixReadAccess);
+ if (rc != Success)
+ return rc;
+
+ if (!ValidAtom(stuff->property))
+ {
+ client->errorValue = stuff->property;
+ return(BadAtom);
+ }
+ if ((stuff->delete != xTrue) && (stuff->delete != xFalse))
+ {
+ client->errorValue = stuff->delete;
+ return(BadValue);
+ }
+ if ((stuff->type != AnyPropertyType) && !ValidAtom(stuff->type))
+ {
+ client->errorValue = stuff->type;
+ return(BadAtom);
+ }
+
+ for (prev = &dev->properties.properties; (prop = *prev); prev = &prop->next)
+ if (prop->propertyName == stuff->property)
+ break;
+
+ reply.repType = X_Reply;
+ reply.RepType = X_GetDeviceProperty;
+ reply.sequenceNumber = client->sequence;
+ reply.deviceid = dev->id;
+ if (!prop)
+ {
+ reply.nItems = 0;
+ reply.length = 0;
+ reply.bytesAfter = 0;
+ reply.propertyType = None;
+ reply.format = 0;
+ WriteReplyToClient(client, sizeof(xGetDevicePropertyReply), &reply);
+ return(client->noClientException);
+ }
+
+ rc = XIGetDeviceProperty(dev, stuff->property, &prop_value);
+ if (rc != Success)
+ {
+ client->errorValue = stuff->property;
+ return rc;
+ }
+
+ /* If the request type and actual type don't match. Return the
+ property information, but not the data. */
+
+ if (((stuff->type != prop_value->type) &&
+ (stuff->type != AnyPropertyType))
+ )
+ {
+ reply.bytesAfter = prop_value->size;
+ reply.format = prop_value->format;
+ reply.length = 0;
+ reply.nItems = 0;
+ reply.propertyType = prop_value->type;
+ WriteReplyToClient(client, sizeof(xGetDevicePropertyReply), &reply);
+ return(client->noClientException);
+ }
+
+/*
+ * Return type, format, value to client
+ */
+ n = (prop_value->format/8) * prop_value->size; /* size (bytes) of prop */
+ ind = stuff->longOffset << 2;
+
+ /* If longOffset is invalid such that it causes "len" to
+ be negative, it's a value error. */
+
+ if (n < ind)
+ {
+ client->errorValue = stuff->longOffset;
+ return BadValue;
+ }
+
+ len = min(n - ind, 4 * stuff->longLength);
+
+ reply.bytesAfter = n - (ind + len);
+ reply.format = prop_value->format;
+ reply.length = (len + 3) >> 2;
+ if (prop_value->format)
+ reply.nItems = len / (prop_value->format / 8);
+ else
+ reply.nItems = 0;
+ reply.propertyType = prop_value->type;
+
+ if (stuff->delete && (reply.bytesAfter == 0))
+ {
+ devicePropertyNotify event;
+
+ event.type = DevicePropertyNotify;
+ event.deviceid = dev->id;
+ event.state = PropertyDelete;
+ event.atom = prop->propertyName;
+ event.time = currentTime.milliseconds;
+ SendEventToAllWindows(dev, DevicePropertyNotifyMask,
+ (xEvent*)&event, 1);
+ }
+
+ WriteReplyToClient(client, sizeof(xGenericReply), &reply);
+ if (len)
+ {
+ switch (reply.format) {
+ case 32: client->pSwapReplyFunc = (ReplySwapPtr)CopySwap32Write; break;
+ case 16: client->pSwapReplyFunc = (ReplySwapPtr)CopySwap16Write; break;
+ default: client->pSwapReplyFunc = (ReplySwapPtr)WriteToClient; break;
+ }
+ WriteSwappedDataToClient(client, len,
+ (char *)prop_value->data + ind);
+ }
+
+ if (stuff->delete && (reply.bytesAfter == 0))
+ { /* delete the Property */
+ *prev = prop->next;
+ XIDestroyDeviceProperty (prop);
+ }
+ return(client->noClientException);
+}
+
+
+int
+SProcXListDeviceProperties (ClientPtr client)
+{
+ char n;
+ REQUEST(xListDevicePropertiesReq);
+
+ swaps(&stuff->length, n);
+
+ REQUEST_SIZE_MATCH(xListDevicePropertiesReq);
+ return (ProcXListDeviceProperties(client));
+}
+
+int
+SProcXChangeDeviceProperty (ClientPtr client)
+{
+ char n;
+ REQUEST(xChangeDevicePropertyReq);
+
+ swaps(&stuff->length, n);
+ swapl(&stuff->property, n);
+ swapl(&stuff->type, n);
+ swapl(&stuff->nUnits, n);
+ REQUEST_SIZE_MATCH(xChangeDevicePropertyReq);
+ return (ProcXChangeDeviceProperty(client));
+}
+
+int
+SProcXDeleteDeviceProperty (ClientPtr client)
+{
+ char n;
+ REQUEST(xDeleteDevicePropertyReq);
+
+ swaps(&stuff->length, n);
+ swapl(&stuff->property, n);
+ REQUEST_SIZE_MATCH(xDeleteDevicePropertyReq);
+ return (ProcXDeleteDeviceProperty(client));
+}
+
+int
+SProcXGetDeviceProperty (ClientPtr client)
+{
+ char n;
+ REQUEST(xGetDevicePropertyReq);
+
+ swaps(&stuff->length, n);
+ swapl(&stuff->property, n);
+ swapl(&stuff->type, n);
+ swapl(&stuff->longOffset, n);
+ swapl(&stuff->longLength, n);
+ REQUEST_SIZE_MATCH(xGetDevicePropertyReq);
+ return (ProcXGetDeviceProperty(client));
+}
+
+
+/* Reply swapping */
+
+void
+SRepXListDeviceProperties(ClientPtr client, int size,
+ xListDevicePropertiesReply *rep)
+{
+ char n;
+ swaps(&rep->sequenceNumber, n);
+ swapl(&rep->length, n);
+ swaps(&rep->nAtoms, n);
+ /* properties will be swapped later, see ProcXListDeviceProperties */
+ WriteToClient(client, size, (char*)rep);
+}
+
+void
+SRepXGetDeviceProperty(ClientPtr client, int size,
+ xGetDevicePropertyReply *rep)
+{
+ char n;
+
+ swaps(&rep->sequenceNumber, n);
+ swapl(&rep->length, n);
+ swapl(&rep->propertyType, n);
+ swapl(&rep->bytesAfter, n);
+ swapl(&rep->nItems, n);
+ /* data will be swapped, see ProcXGetDeviceProperty */
+ WriteToClient(client, size, (char*)rep);
+}