762 lines
20 KiB
C
762 lines
20 KiB
C
/*
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* Copyright © 2006 Keith Packard
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting documentation, and
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* that the name of the copyright holders not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. The copyright holders make no representations
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* about the suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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#include "randrstr.h"
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#include "propertyst.h"
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#include "swaprep.h"
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static int
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DeliverPropertyEvent(WindowPtr pWin, void *value)
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{
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xRROutputPropertyNotifyEvent *event = value;
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RREventPtr *pHead, pRREvent;
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ClientPtr client;
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dixLookupResourceByType((pointer *)&pHead, pWin->drawable.id,
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RREventType, serverClient, DixReadAccess);
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if (!pHead)
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return WT_WALKCHILDREN;
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for (pRREvent = *pHead; pRREvent; pRREvent = pRREvent->next)
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{
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client = pRREvent->client;
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if (client == serverClient || client->clientGone)
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continue;
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if (!(pRREvent->mask & RROutputPropertyNotifyMask))
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continue;
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event->sequenceNumber = client->sequence;
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event->window = pRREvent->window->drawable.id;
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if (client->swapped) {
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int n;
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swaps(&event->sequenceNumber, n);
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swapl(&event->window, n);
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}
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WriteEventsToClient(pRREvent->client, 1, (xEvent *)event);
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}
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return WT_WALKCHILDREN;
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}
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static void RRDeliverPropertyEvent(ScreenPtr pScreen, xEvent *event)
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{
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if (!(dispatchException & (DE_RESET | DE_TERMINATE)))
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WalkTree(pScreen, DeliverPropertyEvent, event);
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}
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void
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RRDeleteAllOutputProperties (RROutputPtr output)
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{
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RRPropertyPtr prop, next;
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xRROutputPropertyNotifyEvent event;
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for (prop = output->properties; prop; prop = next)
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{
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next = prop->next;
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event.type = RREventBase + RRNotify;
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event.subCode = RRNotify_OutputProperty;
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event.output = output->id;
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event.state = PropertyDelete;
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event.atom = prop->propertyName;
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event.timestamp = currentTime.milliseconds;
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RRDeliverPropertyEvent (output->pScreen, (xEvent *)&event);
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if (prop->current.data)
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xfree(prop->current.data);
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if (prop->pending.data)
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xfree(prop->pending.data);
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xfree(prop);
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}
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}
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static void
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RRInitOutputPropertyValue (RRPropertyValuePtr property_value)
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{
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property_value->type = None;
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property_value->format = 0;
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property_value->size = 0;
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property_value->data = NULL;
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}
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static RRPropertyPtr
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RRCreateOutputProperty (Atom property)
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{
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RRPropertyPtr prop;
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prop = (RRPropertyPtr)xalloc(sizeof(RRPropertyRec));
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if (!prop)
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return NULL;
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prop->next = NULL;
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prop->propertyName = property;
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prop->is_pending = FALSE;
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prop->range = FALSE;
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prop->immutable = FALSE;
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prop->num_valid = 0;
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prop->valid_values = NULL;
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RRInitOutputPropertyValue (&prop->current);
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RRInitOutputPropertyValue (&prop->pending);
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return prop;
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}
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static void
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RRDestroyOutputProperty (RRPropertyPtr prop)
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{
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if (prop->valid_values)
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xfree (prop->valid_values);
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if (prop->current.data)
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xfree(prop->current.data);
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if (prop->pending.data)
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xfree(prop->pending.data);
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xfree(prop);
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}
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void
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RRDeleteOutputProperty (RROutputPtr output, Atom property)
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{
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RRPropertyPtr prop, *prev;
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xRROutputPropertyNotifyEvent event;
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for (prev = &output->properties; (prop = *prev); prev = &(prop->next))
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if (prop->propertyName == property)
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break;
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if (prop)
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{
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*prev = prop->next;
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event.type = RREventBase + RRNotify;
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event.subCode = RRNotify_OutputProperty;
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event.output = output->id;
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event.state = PropertyDelete;
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event.atom = prop->propertyName;
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event.timestamp = currentTime.milliseconds;
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RRDeliverPropertyEvent (output->pScreen, (xEvent *)&event);
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RRDestroyOutputProperty (prop);
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}
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}
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int
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RRChangeOutputProperty (RROutputPtr output, Atom property, Atom type,
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int format, int mode, unsigned long len,
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pointer value, Bool sendevent, Bool pending)
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{
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RRPropertyPtr prop;
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xRROutputPropertyNotifyEvent event;
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rrScrPrivPtr pScrPriv = rrGetScrPriv(output->pScreen);
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int size_in_bytes;
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int total_size;
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unsigned long total_len;
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RRPropertyValuePtr prop_value;
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RRPropertyValueRec new_value;
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Bool add = FALSE;
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size_in_bytes = format >> 3;
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/* first see if property already exists */
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prop = RRQueryOutputProperty (output, property);
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if (!prop) /* just add to list */
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{
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prop = RRCreateOutputProperty (property);
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if (!prop)
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return(BadAlloc);
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add = TRUE;
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mode = PropModeReplace;
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}
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if (pending && prop->is_pending)
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prop_value = &prop->pending;
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else
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prop_value = &prop->current;
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/* To append or prepend to a property the request format and type
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must match those of the already defined property. The
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existing format and type are irrelevant when using the mode
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"PropModeReplace" since they will be written over. */
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if ((format != prop_value->format) && (mode != PropModeReplace))
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return(BadMatch);
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if ((prop_value->type != type) && (mode != PropModeReplace))
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return(BadMatch);
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new_value = *prop_value;
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if (mode == PropModeReplace)
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total_len = len;
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else
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total_len = prop_value->size + len;
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if (mode == PropModeReplace || len > 0)
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{
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pointer new_data = NULL, old_data = NULL;
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total_size = total_len * size_in_bytes;
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new_value.data = (pointer)xalloc (total_size);
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if (!new_value.data && total_size)
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{
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if (add)
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RRDestroyOutputProperty (prop);
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return BadAlloc;
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}
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new_value.size = len;
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new_value.type = type;
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new_value.format = format;
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switch (mode) {
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case PropModeReplace:
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new_data = new_value.data;
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old_data = NULL;
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break;
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case PropModeAppend:
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new_data = (pointer) (((char *) new_value.data) +
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(prop_value->size * size_in_bytes));
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old_data = new_value.data;
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break;
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case PropModePrepend:
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new_data = new_value.data;
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old_data = (pointer) (((char *) new_value.data) +
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(prop_value->size * size_in_bytes));
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break;
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}
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if (new_data)
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memcpy ((char *) new_data, (char *) value, len * size_in_bytes);
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if (old_data)
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memcpy ((char *) old_data, (char *) prop_value->data,
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prop_value->size * size_in_bytes);
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if (pending && pScrPriv->rrOutputSetProperty &&
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!pScrPriv->rrOutputSetProperty(output->pScreen, output,
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prop->propertyName, &new_value))
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{
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if (new_value.data)
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xfree (new_value.data);
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return (BadValue);
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}
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if (prop_value->data)
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xfree (prop_value->data);
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*prop_value = new_value;
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}
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else if (len == 0)
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{
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/* do nothing */
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}
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if (add)
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{
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prop->next = output->properties;
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output->properties = prop;
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}
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if (pending && prop->is_pending)
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output->pendingProperties = TRUE;
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if (sendevent)
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{
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event.type = RREventBase + RRNotify;
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event.subCode = RRNotify_OutputProperty;
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event.output = output->id;
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event.state = PropertyNewValue;
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event.atom = prop->propertyName;
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event.timestamp = currentTime.milliseconds;
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RRDeliverPropertyEvent (output->pScreen, (xEvent *)&event);
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}
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return(Success);
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}
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Bool
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RRPostPendingProperties (RROutputPtr output)
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{
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RRPropertyValuePtr pending_value;
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RRPropertyValuePtr current_value;
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RRPropertyPtr property;
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Bool ret = TRUE;
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if (!output->pendingProperties)
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return TRUE;
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output->pendingProperties = FALSE;
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for (property = output->properties; property; property = property->next)
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{
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/* Skip non-pending properties */
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if (!property->is_pending)
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continue;
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pending_value = &property->pending;
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current_value = &property->current;
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/*
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* If the pending and current values are equal, don't mark it
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* as changed (which would deliver an event)
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*/
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if (pending_value->type == current_value->type &&
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pending_value->format == current_value->format &&
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pending_value->size == current_value->size &&
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!memcmp (pending_value->data, current_value->data,
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pending_value->size))
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continue;
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if (RRChangeOutputProperty (output, property->propertyName,
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pending_value->type, pending_value->format,
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PropModeReplace, pending_value->size,
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pending_value->data, TRUE,
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FALSE) != Success)
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ret = FALSE;
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}
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return ret;
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}
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RRPropertyPtr
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RRQueryOutputProperty (RROutputPtr output, Atom property)
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{
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RRPropertyPtr prop;
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for (prop = output->properties; prop; prop = prop->next)
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if (prop->propertyName == property)
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return prop;
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return NULL;
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}
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RRPropertyValuePtr
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RRGetOutputProperty (RROutputPtr output, Atom property, Bool pending)
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{
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RRPropertyPtr prop = RRQueryOutputProperty (output, property);
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rrScrPrivPtr pScrPriv = rrGetScrPriv(output->pScreen);
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if (!prop)
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return NULL;
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if (pending && prop->is_pending)
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return &prop->pending;
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else {
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#if RANDR_13_INTERFACE
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/* If we can, try to update the property value first */
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if (pScrPriv->rrOutputGetProperty)
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pScrPriv->rrOutputGetProperty(output->pScreen, output,
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prop->propertyName);
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#endif
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return &prop->current;
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}
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}
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int
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RRConfigureOutputProperty (RROutputPtr output, Atom property,
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Bool pending, Bool range, Bool immutable,
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int num_values, INT32 *values)
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{
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RRPropertyPtr prop = RRQueryOutputProperty (output, property);
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Bool add = FALSE;
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INT32 *new_values;
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if (!prop)
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{
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prop = RRCreateOutputProperty (property);
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if (!prop)
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return(BadAlloc);
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add = TRUE;
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} else if (prop->immutable && !immutable)
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return(BadAccess);
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/*
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* ranges must have even number of values
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*/
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if (range && (num_values & 1))
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return BadMatch;
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new_values = xalloc (num_values * sizeof (INT32));
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if (!new_values && num_values)
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return BadAlloc;
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if (num_values)
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memcpy (new_values, values, num_values * sizeof (INT32));
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/*
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* Property moving from pending to non-pending
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* loses any pending values
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*/
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if (prop->is_pending && !pending)
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{
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if (prop->pending.data)
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xfree (prop->pending.data);
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RRInitOutputPropertyValue (&prop->pending);
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}
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prop->is_pending = pending;
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prop->range = range;
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prop->immutable = immutable;
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prop->num_valid = num_values;
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if (prop->valid_values)
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xfree (prop->valid_values);
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prop->valid_values = new_values;
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if (add) {
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prop->next = output->properties;
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output->properties = prop;
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}
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return Success;
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}
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int
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ProcRRListOutputProperties (ClientPtr client)
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{
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REQUEST(xRRListOutputPropertiesReq);
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Atom *pAtoms = NULL, *temppAtoms;
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xRRListOutputPropertiesReply rep;
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int numProps = 0;
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RROutputPtr output;
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RRPropertyPtr prop;
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REQUEST_SIZE_MATCH(xRRListOutputPropertiesReq);
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VERIFY_RR_OUTPUT(stuff->output, output, DixReadAccess);
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for (prop = output->properties; prop; prop = prop->next)
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numProps++;
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if (numProps)
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if(!(pAtoms = (Atom *)xalloc(numProps * sizeof(Atom))))
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return(BadAlloc);
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rep.type = X_Reply;
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rep.length = (numProps * sizeof(Atom)) >> 2;
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rep.sequenceNumber = client->sequence;
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rep.nAtoms = numProps;
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if (client->swapped)
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{
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int n;
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swaps (&rep.sequenceNumber, n);
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swapl (&rep.length, n);
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swaps (&rep.nAtoms, n);
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}
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temppAtoms = pAtoms;
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for (prop = output->properties; prop; prop = prop->next)
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*temppAtoms++ = prop->propertyName;
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WriteToClient(client, sizeof(xRRListOutputPropertiesReply), (char*)&rep);
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if (numProps)
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{
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client->pSwapReplyFunc = (ReplySwapPtr)Swap32Write;
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WriteSwappedDataToClient(client, numProps * sizeof(Atom), pAtoms);
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xfree(pAtoms);
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}
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return(client->noClientException);
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}
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int
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ProcRRQueryOutputProperty (ClientPtr client)
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{
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REQUEST(xRRQueryOutputPropertyReq);
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xRRQueryOutputPropertyReply rep;
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RROutputPtr output;
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RRPropertyPtr prop;
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char *extra = NULL;
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REQUEST_SIZE_MATCH(xRRQueryOutputPropertyReq);
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VERIFY_RR_OUTPUT(stuff->output, output, DixReadAccess);
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prop = RRQueryOutputProperty (output, stuff->property);
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if (!prop)
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return BadName;
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if (prop->num_valid) {
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extra = xalloc(prop->num_valid * sizeof(INT32));
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if (!extra)
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return BadAlloc;
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}
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rep.type = X_Reply;
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rep.length = prop->num_valid;
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rep.sequenceNumber = client->sequence;
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rep.pending = prop->is_pending;
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rep.range = prop->range;
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rep.immutable = prop->immutable;
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if (client->swapped)
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{
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int n;
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swaps (&rep.sequenceNumber, n);
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swapl (&rep.length, n);
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}
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WriteToClient (client, sizeof (xRRQueryOutputPropertyReply), (char*)&rep);
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if (prop->num_valid)
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{
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memcpy(extra, prop->valid_values, prop->num_valid * sizeof(INT32));
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client->pSwapReplyFunc = (ReplySwapPtr)Swap32Write;
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WriteSwappedDataToClient(client, prop->num_valid * sizeof(INT32),
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extra);
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xfree(extra);
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}
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return(client->noClientException);
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}
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int
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ProcRRConfigureOutputProperty (ClientPtr client)
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{
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REQUEST(xRRConfigureOutputPropertyReq);
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RROutputPtr output;
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int num_valid;
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REQUEST_AT_LEAST_SIZE(xRRConfigureOutputPropertyReq);
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VERIFY_RR_OUTPUT(stuff->output, output, DixReadAccess);
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num_valid = stuff->length - (sizeof (xRRConfigureOutputPropertyReq) >> 2);
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return RRConfigureOutputProperty (output, stuff->property,
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stuff->pending, stuff->range,
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FALSE, num_valid,
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(INT32 *) (stuff + 1));
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}
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int
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ProcRRChangeOutputProperty (ClientPtr client)
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{
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REQUEST(xRRChangeOutputPropertyReq);
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RROutputPtr output;
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char format, mode;
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unsigned long len;
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int sizeInBytes;
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int totalSize;
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int err;
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REQUEST_AT_LEAST_SIZE(xRRChangeOutputPropertyReq);
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UpdateCurrentTime();
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format = stuff->format;
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mode = stuff->mode;
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if ((mode != PropModeReplace) && (mode != PropModeAppend) &&
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(mode != PropModePrepend))
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{
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client->errorValue = mode;
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return BadValue;
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}
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if ((format != 8) && (format != 16) && (format != 32))
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{
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client->errorValue = format;
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return BadValue;
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}
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len = stuff->nUnits;
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if (len > ((0xffffffff - sizeof(xChangePropertyReq)) >> 2))
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return BadLength;
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sizeInBytes = format>>3;
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totalSize = len * sizeInBytes;
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REQUEST_FIXED_SIZE(xRRChangeOutputPropertyReq, totalSize);
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VERIFY_RR_OUTPUT(stuff->output, output, DixReadAccess);
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if (!ValidAtom(stuff->property))
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{
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client->errorValue = stuff->property;
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return(BadAtom);
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}
|
|
if (!ValidAtom(stuff->type))
|
|
{
|
|
client->errorValue = stuff->type;
|
|
return(BadAtom);
|
|
}
|
|
|
|
err = RRChangeOutputProperty(output, stuff->property,
|
|
stuff->type, (int)format,
|
|
(int)mode, len, (pointer)&stuff[1], TRUE, TRUE);
|
|
if (err != Success)
|
|
return err;
|
|
else
|
|
return client->noClientException;
|
|
}
|
|
|
|
int
|
|
ProcRRDeleteOutputProperty (ClientPtr client)
|
|
{
|
|
REQUEST(xRRDeleteOutputPropertyReq);
|
|
RROutputPtr output;
|
|
|
|
REQUEST_SIZE_MATCH(xRRDeleteOutputPropertyReq);
|
|
UpdateCurrentTime();
|
|
VERIFY_RR_OUTPUT(stuff->output, output, DixReadAccess);
|
|
|
|
if (!ValidAtom(stuff->property))
|
|
{
|
|
client->errorValue = stuff->property;
|
|
return (BadAtom);
|
|
}
|
|
|
|
|
|
RRDeleteOutputProperty(output, stuff->property);
|
|
return client->noClientException;
|
|
}
|
|
|
|
int
|
|
ProcRRGetOutputProperty (ClientPtr client)
|
|
{
|
|
REQUEST(xRRGetOutputPropertyReq);
|
|
RRPropertyPtr prop, *prev;
|
|
RRPropertyValuePtr prop_value;
|
|
unsigned long n, len, ind;
|
|
RROutputPtr output;
|
|
xRRGetOutputPropertyReply reply;
|
|
char *extra = NULL;
|
|
|
|
REQUEST_SIZE_MATCH(xRRGetOutputPropertyReq);
|
|
if (stuff->delete)
|
|
UpdateCurrentTime();
|
|
VERIFY_RR_OUTPUT(stuff->output, output,
|
|
stuff->delete ? DixWriteAccess : DixReadAccess);
|
|
|
|
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 = &output->properties; (prop = *prev); prev = &prop->next)
|
|
if (prop->propertyName == stuff->property)
|
|
break;
|
|
|
|
reply.type = X_Reply;
|
|
reply.sequenceNumber = client->sequence;
|
|
if (!prop)
|
|
{
|
|
reply.nItems = 0;
|
|
reply.length = 0;
|
|
reply.bytesAfter = 0;
|
|
reply.propertyType = None;
|
|
reply.format = 0;
|
|
if (client->swapped) {
|
|
int n;
|
|
|
|
swaps(&reply.sequenceNumber, n);
|
|
swapl(&reply.length, n);
|
|
swapl(&reply.propertyType, n);
|
|
swapl(&reply.bytesAfter, n);
|
|
swapl(&reply.nItems, n);
|
|
}
|
|
WriteToClient(client, sizeof(xRRGetOutputPropertyReply), &reply);
|
|
return(client->noClientException);
|
|
}
|
|
|
|
if (prop->immutable && stuff->delete)
|
|
return BadAccess;
|
|
|
|
prop_value = RRGetOutputProperty(output, stuff->property, stuff->pending);
|
|
if (!prop_value)
|
|
return BadAtom;
|
|
|
|
/* 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;
|
|
if (client->swapped) {
|
|
int n;
|
|
|
|
swaps(&reply.sequenceNumber, n);
|
|
swapl(&reply.length, n);
|
|
swapl(&reply.propertyType, n);
|
|
swapl(&reply.bytesAfter, n);
|
|
swapl(&reply.nItems, n);
|
|
}
|
|
WriteToClient(client, sizeof(xRRGetOutputPropertyReply), &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);
|
|
|
|
if (len) {
|
|
extra = xalloc(len);
|
|
if (!extra)
|
|
return BadAlloc;
|
|
}
|
|
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))
|
|
{
|
|
xRROutputPropertyNotifyEvent event;
|
|
|
|
event.type = RREventBase + RRNotify;
|
|
event.subCode = RRNotify_OutputProperty;
|
|
event.output = output->id;
|
|
event.state = PropertyDelete;
|
|
event.atom = prop->propertyName;
|
|
event.timestamp = currentTime.milliseconds;
|
|
RRDeliverPropertyEvent (output->pScreen, (xEvent *)&event);
|
|
}
|
|
|
|
if (client->swapped) {
|
|
int n;
|
|
|
|
swaps(&reply.sequenceNumber, n);
|
|
swapl(&reply.length, n);
|
|
swapl(&reply.propertyType, n);
|
|
swapl(&reply.bytesAfter, n);
|
|
swapl(&reply.nItems, n);
|
|
}
|
|
WriteToClient(client, sizeof(xGenericReply), &reply);
|
|
if (len)
|
|
{
|
|
memcpy(extra, (char *)prop_value->data + ind, 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,
|
|
extra);
|
|
xfree(extra);
|
|
}
|
|
|
|
if (stuff->delete && (reply.bytesAfter == 0))
|
|
{ /* delete the Property */
|
|
*prev = prop->next;
|
|
RRDestroyOutputProperty (prop);
|
|
}
|
|
return(client->noClientException);
|
|
}
|
|
|