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xserver/present/present_request.c

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/*
* Copyright © 2013 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#include <dix-config.h>
#include "dix/dix_priv.h"
#include "present_priv.h"
#include "randrstr_priv.h"
#include <protocol-versions.h>
static int
proc_present_query_version(ClientPtr client)
{
REQUEST(xPresentQueryVersionReq);
xPresentQueryVersionReply rep = {
.type = X_Reply,
.sequenceNumber = client->sequence,
.length = 0,
.majorVersion = SERVER_PRESENT_MAJOR_VERSION,
.minorVersion = SERVER_PRESENT_MINOR_VERSION
};
REQUEST_SIZE_MATCH(xPresentQueryVersionReq);
/* From presentproto:
*
* The client sends the highest supported version to the server
* and the server sends the highest version it supports, but no
* higher than the requested version.
*/
if (rep.majorVersion > stuff->majorVersion ||
rep.minorVersion > stuff->minorVersion) {
rep.majorVersion = stuff->majorVersion;
rep.minorVersion = stuff->minorVersion;
}
if (client->swapped) {
swaps(&rep.sequenceNumber);
swapl(&rep.length);
swapl(&rep.majorVersion);
swapl(&rep.minorVersion);
}
WriteToClient(client, sizeof(rep), &rep);
return Success;
}
#define VERIFY_FENCE_OR_NONE(fence_ptr, fence_id, client, access) do { \
if ((fence_id) == None) \
(fence_ptr) = NULL; \
else { \
int __rc__ = SyncVerifyFence(&fence_ptr, fence_id, client, access); \
if (__rc__ != Success) \
return __rc__; \
} \
} while (0)
#define VERIFY_CRTC_OR_NONE(crtc_ptr, crtc_id, client, access) do { \
if ((crtc_id) == None) \
(crtc_ptr) = NULL; \
else { \
VERIFY_RR_CRTC(crtc_id, crtc_ptr, access); \
} \
} while (0)
static int
proc_present_pixmap_common(ClientPtr client,
Window req_window,
Pixmap req_pixmap,
CARD32 req_serial,
CARD32 req_valid,
CARD32 req_update,
INT16 req_x_off,
INT16 req_y_off,
CARD32 req_target_crtc,
XSyncFence req_wait_fence,
XSyncFence req_idle_fence,
#ifdef DRI3
struct dri3_syncobj *acquire_syncobj,
struct dri3_syncobj *release_syncobj,
CARD64 req_acquire_point,
CARD64 req_release_point,
#endif /* DRI3 */
CARD32 req_options,
CARD64 req_target_msc,
CARD64 req_divisor,
CARD64 req_remainder,
size_t base_req_size,
xPresentNotify *req_notifies)
{
WindowPtr window;
PixmapPtr pixmap;
RegionPtr valid = NULL;
RegionPtr update = NULL;
RRCrtcPtr target_crtc;
SyncFence *wait_fence;
SyncFence *idle_fence;
int nnotifies;
present_notify_ptr notifies = NULL;
int ret;
ret = dixLookupWindow(&window, req_window, client, DixWriteAccess);
if (ret != Success)
return ret;
ret = dixLookupResourceByType((void **) &pixmap, req_pixmap, X11_RESTYPE_PIXMAP, client, DixReadAccess);
if (ret != Success)
return ret;
if (window->drawable.depth != pixmap->drawable.depth)
return BadMatch;
VERIFY_REGION_OR_NONE(valid, req_valid, client, DixReadAccess);
VERIFY_REGION_OR_NONE(update, req_update, client, DixReadAccess);
VERIFY_CRTC_OR_NONE(target_crtc, req_target_crtc, client, DixReadAccess);
VERIFY_FENCE_OR_NONE(wait_fence, req_wait_fence, client, DixReadAccess);
VERIFY_FENCE_OR_NONE(idle_fence, req_idle_fence, client, DixWriteAccess);
if (req_options & ~(PresentAllOptions)) {
client->errorValue = req_options;
return BadValue;
}
/*
* Check to see if remainder is sane
*/
if (req_divisor == 0) {
if (req_remainder != 0) {
client->errorValue = (CARD32)req_remainder;
return BadValue;
}
} else {
if (req_remainder >= req_divisor) {
client->errorValue = (CARD32)req_remainder;
return BadValue;
}
}
nnotifies = (client->req_len << 2) - base_req_size;
if (nnotifies % sizeof (xPresentNotify))
return BadLength;
nnotifies /= sizeof (xPresentNotify);
if (nnotifies) {
ret = present_create_notifies(client, nnotifies, req_notifies, &notifies);
if (ret != Success)
return ret;
}
ret = present_pixmap(window, pixmap, req_serial,
valid, update, req_x_off, req_y_off, target_crtc,
wait_fence, idle_fence,
#ifdef DRI3
acquire_syncobj, release_syncobj,
req_acquire_point, req_release_point,
#endif /* DRI3 */
req_options, req_target_msc, req_divisor, req_remainder,
notifies, nnotifies);
if (ret != Success)
present_destroy_notifies(notifies, nnotifies);
return ret;
}
static int
proc_present_pixmap(ClientPtr client)
{
REQUEST(xPresentPixmapReq);
REQUEST_AT_LEAST_SIZE(xPresentPixmapReq);
return proc_present_pixmap_common(client, stuff->window, stuff->pixmap, stuff->serial,
stuff->valid, stuff->update, stuff->x_off, stuff->y_off,
stuff->target_crtc,
stuff->wait_fence, stuff->idle_fence,
#ifdef DRI3
None, None, 0, 0,
#endif /* DRI3 */
stuff->options, stuff->target_msc,
stuff->divisor, stuff->remainder,
sizeof (xPresentPixmapReq),
(xPresentNotify *)(stuff + 1));
}
static int
proc_present_notify_msc(ClientPtr client)
{
REQUEST(xPresentNotifyMSCReq);
WindowPtr window;
int rc;
REQUEST_SIZE_MATCH(xPresentNotifyMSCReq);
rc = dixLookupWindow(&window, stuff->window, client, DixReadAccess);
if (rc != Success)
return rc;
/*
* Check to see if remainder is sane
*/
if (stuff->divisor == 0) {
if (stuff->remainder != 0) {
client->errorValue = (CARD32) stuff->remainder;
return BadValue;
}
} else {
if (stuff->remainder >= stuff->divisor) {
client->errorValue = (CARD32) stuff->remainder;
return BadValue;
}
}
return present_notify_msc(window, stuff->serial,
stuff->target_msc, stuff->divisor, stuff->remainder);
}
static int
proc_present_select_input (ClientPtr client)
{
REQUEST(xPresentSelectInputReq);
WindowPtr window;
int rc;
REQUEST_SIZE_MATCH(xPresentSelectInputReq);
rc = dixLookupWindow(&window, stuff->window, client, DixGetAttrAccess);
if (rc != Success)
return rc;
if (stuff->eventMask & ~PresentAllEvents) {
client->errorValue = stuff->eventMask;
return BadValue;
}
return present_select_input(client, stuff->eid, window, stuff->eventMask);
}
static int
proc_present_query_capabilities (ClientPtr client)
{
REQUEST(xPresentQueryCapabilitiesReq);
xPresentQueryCapabilitiesReply rep = {
.type = X_Reply,
.sequenceNumber = client->sequence,
.length = 0,
};
WindowPtr window;
RRCrtcPtr crtc = NULL;
int r;
REQUEST_SIZE_MATCH(xPresentQueryCapabilitiesReq);
r = dixLookupWindow(&window, stuff->target, client, DixGetAttrAccess);
switch (r) {
case Success:
crtc = present_get_crtc(window);
break;
case BadWindow:
VERIFY_RR_CRTC(stuff->target, crtc, DixGetAttrAccess);
break;
default:
return r;
}
rep.capabilities = present_query_capabilities(crtc);
if (client->swapped) {
swaps(&rep.sequenceNumber);
swapl(&rep.length);
swapl(&rep.capabilities);
}
WriteToClient(client, sizeof(rep), &rep);
return Success;
}
#ifdef DRI3
static int
proc_present_pixmap_synced (ClientPtr client)
{
REQUEST(xPresentPixmapSyncedReq);
struct dri3_syncobj *acquire_syncobj;
struct dri3_syncobj *release_syncobj;
REQUEST_AT_LEAST_SIZE(xPresentPixmapSyncedReq);
VERIFY_DRI3_SYNCOBJ(stuff->acquire_syncobj, acquire_syncobj, DixWriteAccess);
VERIFY_DRI3_SYNCOBJ(stuff->release_syncobj, release_syncobj, DixWriteAccess);
if (stuff->acquire_point == 0 || stuff->release_point == 0 ||
(stuff->acquire_syncobj == stuff->release_syncobj &&
stuff->acquire_point >= stuff->release_point))
return BadValue;
return proc_present_pixmap_common(client, stuff->window, stuff->pixmap, stuff->serial,
stuff->valid, stuff->update, stuff->x_off, stuff->y_off,
stuff->target_crtc,
None, None,
acquire_syncobj, release_syncobj,
stuff->acquire_point, stuff->release_point,
stuff->options, stuff->target_msc,
stuff->divisor, stuff->remainder,
sizeof (xPresentPixmapSyncedReq),
(xPresentNotify *)(stuff + 1));
}
#endif /* DRI3 */
static int (*proc_present_vector[PresentNumberRequests]) (ClientPtr) = {
proc_present_query_version, /* 0 */
proc_present_pixmap, /* 1 */
proc_present_notify_msc, /* 2 */
proc_present_select_input, /* 3 */
proc_present_query_capabilities, /* 4 */
#ifdef DRI3
proc_present_pixmap_synced, /* 5 */
#endif /* DRI3 */
};
int
proc_present_dispatch(ClientPtr client)
{
REQUEST(xReq);
if (stuff->data >= PresentNumberRequests || !proc_present_vector[stuff->data])
return BadRequest;
return (*proc_present_vector[stuff->data]) (client);
}
static int _X_COLD
sproc_present_query_version(ClientPtr client)
{
REQUEST(xPresentQueryVersionReq);
REQUEST_SIZE_MATCH(xPresentQueryVersionReq);
swapl(&stuff->majorVersion);
swapl(&stuff->minorVersion);
return (*proc_present_vector[stuff->presentReqType]) (client);
}
static int _X_COLD
sproc_present_pixmap(ClientPtr client)
{
REQUEST(xPresentPixmapReq);
REQUEST_AT_LEAST_SIZE(xPresentPixmapReq);
swapl(&stuff->window);
swapl(&stuff->pixmap);
swapl(&stuff->valid);
swapl(&stuff->update);
swaps(&stuff->x_off);
swaps(&stuff->y_off);
swapll(&stuff->target_msc);
swapll(&stuff->divisor);
swapll(&stuff->remainder);
swapl(&stuff->idle_fence);
return (*proc_present_vector[stuff->presentReqType]) (client);
}
static int _X_COLD
sproc_present_notify_msc(ClientPtr client)
{
REQUEST(xPresentNotifyMSCReq);
REQUEST_SIZE_MATCH(xPresentNotifyMSCReq);
swapl(&stuff->window);
swapll(&stuff->target_msc);
swapll(&stuff->divisor);
swapll(&stuff->remainder);
return (*proc_present_vector[stuff->presentReqType]) (client);
}
static int _X_COLD
sproc_present_select_input (ClientPtr client)
{
REQUEST(xPresentSelectInputReq);
REQUEST_SIZE_MATCH(xPresentSelectInputReq);
swapl(&stuff->window);
swapl(&stuff->eventMask);
return (*proc_present_vector[stuff->presentReqType]) (client);
}
static int _X_COLD
sproc_present_query_capabilities (ClientPtr client)
{
REQUEST(xPresentQueryCapabilitiesReq);
REQUEST_SIZE_MATCH(xPresentQueryCapabilitiesReq);
swapl(&stuff->target);
return (*proc_present_vector[stuff->presentReqType]) (client);
}
#ifdef DRI3
static int _X_COLD
sproc_present_pixmap_synced(ClientPtr client)
{
REQUEST(xPresentPixmapSyncedReq);
REQUEST_AT_LEAST_SIZE(xPresentPixmapSyncedReq);
swapl(&stuff->window);
swapl(&stuff->pixmap);
swapl(&stuff->serial);
swapl(&stuff->valid);
swapl(&stuff->update);
swaps(&stuff->x_off);
swaps(&stuff->y_off);
swapl(&stuff->target_crtc);
swapl(&stuff->acquire_syncobj);
swapl(&stuff->release_syncobj);
swapll(&stuff->acquire_point);
swapll(&stuff->release_point);
swapl(&stuff->options);
swapll(&stuff->target_msc);
swapll(&stuff->divisor);
swapll(&stuff->remainder);
return (*proc_present_vector[stuff->presentReqType]) (client);
}
#endif /* DRI3 */
static int (*sproc_present_vector[PresentNumberRequests]) (ClientPtr) = {
sproc_present_query_version, /* 0 */
sproc_present_pixmap, /* 1 */
sproc_present_notify_msc, /* 2 */
sproc_present_select_input, /* 3 */
sproc_present_query_capabilities, /* 4 */
#ifdef DRI3
sproc_present_pixmap_synced, /* 5 */
#endif /* DRI3 */
};
int _X_COLD
sproc_present_dispatch(ClientPtr client)
{
REQUEST(xReq);
if (stuff->data >= PresentNumberRequests || !sproc_present_vector[stuff->data])
return BadRequest;
return (*sproc_present_vector[stuff->data]) (client);
}
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