559954aaa8
We were sending the events to all clients listening for them on the window. But clients can get confused by events from another client, and I can't imagine any case where receiving events from other clients would be required. v2: * Also restrict events sent to additional windows to the presenting client * Don't shorten line lengths Reviewed-by: Keith Packard <keithp@keithp.com>
336 lines
10 KiB
C
336 lines
10 KiB
C
/*
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* Copyright © 2013 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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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include "present_priv.h"
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#include "randrstr.h"
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#include <protocol-versions.h>
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static int
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proc_present_query_version(ClientPtr client)
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{
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REQUEST(xPresentQueryVersionReq);
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xPresentQueryVersionReply rep = {
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.type = X_Reply,
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.sequenceNumber = client->sequence,
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.length = 0,
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.majorVersion = SERVER_PRESENT_MAJOR_VERSION,
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.minorVersion = SERVER_PRESENT_MINOR_VERSION
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};
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REQUEST_SIZE_MATCH(xPresentQueryVersionReq);
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(void) stuff;
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if (client->swapped) {
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swaps(&rep.sequenceNumber);
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swapl(&rep.length);
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swapl(&rep.majorVersion);
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swapl(&rep.minorVersion);
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}
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WriteToClient(client, sizeof(rep), &rep);
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return Success;
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}
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#define VERIFY_FENCE_OR_NONE(fence_ptr, fence_id, client, access) do { \
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if ((fence_id) == None) \
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(fence_ptr) = NULL; \
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else { \
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int __rc__ = SyncVerifyFence(&fence_ptr, fence_id, client, access); \
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if (__rc__ != Success) \
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return __rc__; \
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} \
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} while (0)
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#define VERIFY_CRTC_OR_NONE(crtc_ptr, crtc_id, client, access) do { \
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if ((crtc_id) == None) \
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(crtc_ptr) = NULL; \
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else { \
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VERIFY_RR_CRTC(crtc_id, crtc_ptr, access); \
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} \
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} while (0)
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static int
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proc_present_pixmap(ClientPtr client)
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{
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REQUEST(xPresentPixmapReq);
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WindowPtr window;
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PixmapPtr pixmap;
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RegionPtr valid = NULL;
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RegionPtr update = NULL;
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SyncFence *wait_fence;
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SyncFence *idle_fence;
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RRCrtcPtr target_crtc;
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int ret;
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int nnotifies;
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present_notify_ptr notifies = NULL;
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REQUEST_AT_LEAST_SIZE(xPresentPixmapReq);
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ret = dixLookupWindow(&window, stuff->window, client, DixWriteAccess);
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if (ret != Success)
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return ret;
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ret = dixLookupResourceByType((void **) &pixmap, stuff->pixmap, RT_PIXMAP, client, DixReadAccess);
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if (ret != Success)
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return ret;
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if (window->drawable.depth != pixmap->drawable.depth)
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return BadMatch;
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VERIFY_REGION_OR_NONE(valid, stuff->valid, client, DixReadAccess);
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VERIFY_REGION_OR_NONE(update, stuff->update, client, DixReadAccess);
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VERIFY_CRTC_OR_NONE(target_crtc, stuff->target_crtc, client, DixReadAccess);
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VERIFY_FENCE_OR_NONE(wait_fence, stuff->wait_fence, client, DixReadAccess);
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VERIFY_FENCE_OR_NONE(idle_fence, stuff->idle_fence, client, DixWriteAccess);
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if (stuff->options & ~(PresentAllOptions)) {
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client->errorValue = stuff->options;
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return BadValue;
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}
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/*
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* Check to see if remainder is sane
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*/
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if (stuff->divisor == 0) {
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if (stuff->remainder != 0) {
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client->errorValue = (CARD32) stuff->remainder;
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return BadValue;
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}
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} else {
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if (stuff->remainder >= stuff->divisor) {
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client->errorValue = (CARD32) stuff->remainder;
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return BadValue;
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}
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}
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nnotifies = (client->req_len << 2) - sizeof (xPresentPixmapReq);
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if (nnotifies % sizeof (xPresentNotify))
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return BadLength;
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nnotifies /= sizeof (xPresentNotify);
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if (nnotifies) {
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ret = present_create_notifies(client, nnotifies, (xPresentNotify *) (stuff + 1), ¬ifies);
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if (ret != Success)
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return ret;
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}
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ret = present_pixmap(window, pixmap, client, stuff->serial, valid, update,
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stuff->x_off, stuff->y_off, target_crtc,
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wait_fence, idle_fence, stuff->options,
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stuff->target_msc, stuff->divisor, stuff->remainder, notifies, nnotifies);
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if (ret != Success)
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present_destroy_notifies(notifies, nnotifies);
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return ret;
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}
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static int
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proc_present_notify_msc(ClientPtr client)
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{
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REQUEST(xPresentNotifyMSCReq);
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WindowPtr window;
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int rc;
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REQUEST_SIZE_MATCH(xPresentNotifyMSCReq);
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rc = dixLookupWindow(&window, stuff->window, client, DixReadAccess);
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if (rc != Success)
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return rc;
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/*
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* Check to see if remainder is sane
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*/
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if (stuff->divisor == 0) {
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if (stuff->remainder != 0) {
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client->errorValue = (CARD32) stuff->remainder;
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return BadValue;
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}
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} else {
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if (stuff->remainder >= stuff->divisor) {
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client->errorValue = (CARD32) stuff->remainder;
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return BadValue;
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}
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}
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return present_notify_msc(window, client, stuff->serial,
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stuff->target_msc, stuff->divisor, stuff->remainder);
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}
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static int
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proc_present_select_input (ClientPtr client)
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{
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REQUEST(xPresentSelectInputReq);
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WindowPtr window;
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int rc;
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REQUEST_SIZE_MATCH(xPresentSelectInputReq);
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rc = dixLookupWindow(&window, stuff->window, client, DixGetAttrAccess);
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if (rc != Success)
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return rc;
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if (stuff->eventMask & ~PresentAllEvents) {
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client->errorValue = stuff->eventMask;
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return BadValue;
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}
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return present_select_input(client, stuff->eid, window, stuff->eventMask);
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}
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static int
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proc_present_query_capabilities (ClientPtr client)
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{
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REQUEST(xPresentQueryCapabilitiesReq);
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xPresentQueryCapabilitiesReply rep = {
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.type = X_Reply,
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.sequenceNumber = client->sequence,
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.length = 0,
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};
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WindowPtr window;
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RRCrtcPtr crtc = NULL;
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int r;
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REQUEST_SIZE_MATCH(xPresentQueryCapabilitiesReq);
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r = dixLookupWindow(&window, stuff->target, client, DixGetAttrAccess);
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switch (r) {
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case Success:
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crtc = present_get_crtc(window);
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break;
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case BadWindow:
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VERIFY_RR_CRTC(stuff->target, crtc, DixGetAttrAccess);
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break;
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default:
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return r;
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}
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rep.capabilities = present_query_capabilities(crtc);
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if (client->swapped) {
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swaps(&rep.sequenceNumber);
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swapl(&rep.length);
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swapl(&rep.capabilities);
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}
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WriteToClient(client, sizeof(rep), &rep);
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return Success;
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}
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static int (*proc_present_vector[PresentNumberRequests]) (ClientPtr) = {
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proc_present_query_version, /* 0 */
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proc_present_pixmap, /* 1 */
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proc_present_notify_msc, /* 2 */
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proc_present_select_input, /* 3 */
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proc_present_query_capabilities, /* 4 */
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};
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int
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proc_present_dispatch(ClientPtr client)
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{
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REQUEST(xReq);
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if (stuff->data >= PresentNumberRequests || !proc_present_vector[stuff->data])
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return BadRequest;
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return (*proc_present_vector[stuff->data]) (client);
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}
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static int _X_COLD
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sproc_present_query_version(ClientPtr client)
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{
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REQUEST(xPresentQueryVersionReq);
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REQUEST_SIZE_MATCH(xPresentQueryVersionReq);
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swaps(&stuff->length);
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swapl(&stuff->majorVersion);
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swapl(&stuff->minorVersion);
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return (*proc_present_vector[stuff->presentReqType]) (client);
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}
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static int _X_COLD
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sproc_present_pixmap(ClientPtr client)
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{
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REQUEST(xPresentPixmapReq);
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REQUEST_AT_LEAST_SIZE(xPresentPixmapReq);
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swaps(&stuff->length);
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swapl(&stuff->window);
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swapl(&stuff->pixmap);
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swapl(&stuff->valid);
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swapl(&stuff->update);
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swaps(&stuff->x_off);
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swaps(&stuff->y_off);
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swapll(&stuff->target_msc);
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swapll(&stuff->divisor);
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swapll(&stuff->remainder);
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swapl(&stuff->idle_fence);
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return (*proc_present_vector[stuff->presentReqType]) (client);
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}
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static int _X_COLD
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sproc_present_notify_msc(ClientPtr client)
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{
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REQUEST(xPresentNotifyMSCReq);
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REQUEST_SIZE_MATCH(xPresentNotifyMSCReq);
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swaps(&stuff->length);
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swapl(&stuff->window);
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swapll(&stuff->target_msc);
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swapll(&stuff->divisor);
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swapll(&stuff->remainder);
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return (*proc_present_vector[stuff->presentReqType]) (client);
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}
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static int _X_COLD
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sproc_present_select_input (ClientPtr client)
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{
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REQUEST(xPresentSelectInputReq);
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REQUEST_SIZE_MATCH(xPresentSelectInputReq);
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swaps(&stuff->length);
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swapl(&stuff->window);
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swapl(&stuff->eventMask);
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return (*proc_present_vector[stuff->presentReqType]) (client);
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}
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static int _X_COLD
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sproc_present_query_capabilities (ClientPtr client)
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{
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REQUEST(xPresentQueryCapabilitiesReq);
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REQUEST_SIZE_MATCH(xPresentQueryCapabilitiesReq);
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swaps(&stuff->length);
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swapl(&stuff->target);
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return (*proc_present_vector[stuff->presentReqType]) (client);
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}
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static int (*sproc_present_vector[PresentNumberRequests]) (ClientPtr) = {
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sproc_present_query_version, /* 0 */
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sproc_present_pixmap, /* 1 */
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sproc_present_notify_msc, /* 2 */
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sproc_present_select_input, /* 3 */
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sproc_present_query_capabilities, /* 4 */
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};
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int _X_COLD
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sproc_present_dispatch(ClientPtr client)
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{
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REQUEST(xReq);
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if (stuff->data >= PresentNumberRequests || !sproc_present_vector[stuff->data])
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return BadRequest;
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return (*sproc_present_vector[stuff->data]) (client);
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}
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