ref: b76e8ecc732cb311ceee6fd6c807b7e784d3fe31
dir: /sys/src/ape/X11/cmd/X/xfixes/xfixes.c/
/*
* Copyright © 2006 Sun Microsystems
*
* 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 Sun Microsystems not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Sun Microsystems makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* SUN MICROSYSTEMS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL SUN MICROSYSTEMS 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.
*
* Copyright © 2002 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 Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL KEITH PACKARD 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.
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include "xfixesint.h"
/*
* Must use these instead of the constants from xfixeswire.h. They advertise
* what we implement, not what the protocol headers define.
*/
#define SERVER_XFIXES_MAJOR 4
#define SERVER_XFIXES_MINOR 0
static unsigned char XFixesReqCode;
int XFixesEventBase;
int XFixesErrorBase;
static int XFixesClientPrivateIndex;
static int
ProcXFixesQueryVersion(ClientPtr client)
{
XFixesClientPtr pXFixesClient = GetXFixesClient (client);
xXFixesQueryVersionReply rep;
register int n;
REQUEST(xXFixesQueryVersionReq);
REQUEST_SIZE_MATCH(xXFixesQueryVersionReq);
rep.type = X_Reply;
rep.length = 0;
rep.sequenceNumber = client->sequence;
if (stuff->majorVersion < SERVER_XFIXES_MAJOR) {
rep.majorVersion = stuff->majorVersion;
rep.minorVersion = stuff->minorVersion;
} else {
rep.majorVersion = SERVER_XFIXES_MAJOR;
if (stuff->majorVersion == SERVER_XFIXES_MAJOR &&
stuff->minorVersion < SERVER_XFIXES_MINOR)
rep.minorVersion = stuff->minorVersion;
else
rep.minorVersion = SERVER_XFIXES_MINOR;
}
pXFixesClient->major_version = rep.majorVersion;
pXFixesClient->minor_version = rep.minorVersion;
if (client->swapped) {
swaps(&rep.sequenceNumber, n);
swapl(&rep.length, n);
swapl(&rep.majorVersion, n);
swapl(&rep.minorVersion, n);
}
WriteToClient(client, sizeof(xXFixesQueryVersionReply), (char *)&rep);
return(client->noClientException);
}
/* Major version controls available requests */
static const int version_requests[] = {
X_XFixesQueryVersion, /* before client sends QueryVersion */
X_XFixesGetCursorImage, /* Version 1 */
X_XFixesChangeCursorByName, /* Version 2 */
X_XFixesExpandRegion, /* Version 3 */
X_XFixesShowCursor, /* Version 4 */
};
#define NUM_VERSION_REQUESTS (sizeof (version_requests) / sizeof (version_requests[0]))
int (*ProcXFixesVector[XFixesNumberRequests])(ClientPtr) = {
/*************** Version 1 ******************/
ProcXFixesQueryVersion,
ProcXFixesChangeSaveSet,
ProcXFixesSelectSelectionInput,
ProcXFixesSelectCursorInput,
ProcXFixesGetCursorImage,
/*************** Version 2 ******************/
ProcXFixesCreateRegion,
ProcXFixesCreateRegionFromBitmap,
ProcXFixesCreateRegionFromWindow,
ProcXFixesCreateRegionFromGC,
ProcXFixesCreateRegionFromPicture,
ProcXFixesDestroyRegion,
ProcXFixesSetRegion,
ProcXFixesCopyRegion,
ProcXFixesCombineRegion,
ProcXFixesCombineRegion,
ProcXFixesCombineRegion,
ProcXFixesInvertRegion,
ProcXFixesTranslateRegion,
ProcXFixesRegionExtents,
ProcXFixesFetchRegion,
ProcXFixesSetGCClipRegion,
ProcXFixesSetWindowShapeRegion,
ProcXFixesSetPictureClipRegion,
ProcXFixesSetCursorName,
ProcXFixesGetCursorName,
ProcXFixesGetCursorImageAndName,
ProcXFixesChangeCursor,
ProcXFixesChangeCursorByName,
/*************** Version 3 ******************/
ProcXFixesExpandRegion,
/*************** Version 4 ****************/
ProcXFixesHideCursor,
ProcXFixesShowCursor,
};
static int
ProcXFixesDispatch (ClientPtr client)
{
REQUEST(xXFixesReq);
XFixesClientPtr pXFixesClient = GetXFixesClient (client);
if (pXFixesClient->major_version >= NUM_VERSION_REQUESTS)
return BadRequest;
if (stuff->xfixesReqType > version_requests[pXFixesClient->major_version])
return BadRequest;
return (*ProcXFixesVector[stuff->xfixesReqType]) (client);
}
static int
SProcXFixesQueryVersion(ClientPtr client)
{
register int n;
REQUEST(xXFixesQueryVersionReq);
swaps(&stuff->length, n);
swapl(&stuff->majorVersion, n);
swapl(&stuff->minorVersion, n);
return (*ProcXFixesVector[stuff->xfixesReqType]) (client);
}
static int (*SProcXFixesVector[XFixesNumberRequests])(ClientPtr) = {
/*************** Version 1 ******************/
SProcXFixesQueryVersion,
SProcXFixesChangeSaveSet,
SProcXFixesSelectSelectionInput,
SProcXFixesSelectCursorInput,
SProcXFixesGetCursorImage,
/*************** Version 2 ******************/
SProcXFixesCreateRegion,
SProcXFixesCreateRegionFromBitmap,
SProcXFixesCreateRegionFromWindow,
SProcXFixesCreateRegionFromGC,
SProcXFixesCreateRegionFromPicture,
SProcXFixesDestroyRegion,
SProcXFixesSetRegion,
SProcXFixesCopyRegion,
SProcXFixesCombineRegion,
SProcXFixesCombineRegion,
SProcXFixesCombineRegion,
SProcXFixesInvertRegion,
SProcXFixesTranslateRegion,
SProcXFixesRegionExtents,
SProcXFixesFetchRegion,
SProcXFixesSetGCClipRegion,
SProcXFixesSetWindowShapeRegion,
SProcXFixesSetPictureClipRegion,
SProcXFixesSetCursorName,
SProcXFixesGetCursorName,
SProcXFixesGetCursorImageAndName,
SProcXFixesChangeCursor,
SProcXFixesChangeCursorByName,
/*************** Version 3 ******************/
SProcXFixesExpandRegion,
/*************** Version 4 ****************/
SProcXFixesHideCursor,
SProcXFixesShowCursor,
};
static int
SProcXFixesDispatch (ClientPtr client)
{
REQUEST(xXFixesReq);
if (stuff->xfixesReqType >= XFixesNumberRequests)
return BadRequest;
return (*SProcXFixesVector[stuff->xfixesReqType]) (client);
}
static void
XFixesClientCallback (CallbackListPtr *list,
pointer closure,
pointer data)
{
NewClientInfoRec *clientinfo = (NewClientInfoRec *) data;
ClientPtr pClient = clientinfo->client;
XFixesClientPtr pXFixesClient = GetXFixesClient (pClient);
pXFixesClient->major_version = 0;
pXFixesClient->minor_version = 0;
}
/*ARGSUSED*/
static void
XFixesResetProc (ExtensionEntry *extEntry)
{
DeleteCallback (&ClientStateCallback, XFixesClientCallback, 0);
}
void
XFixesExtensionInit(void)
{
ExtensionEntry *extEntry;
XFixesClientPrivateIndex = AllocateClientPrivateIndex ();
if (!AllocateClientPrivate (XFixesClientPrivateIndex,
sizeof (XFixesClientRec)))
return;
if (!AddCallback (&ClientStateCallback, XFixesClientCallback, 0))
return;
if (XFixesSelectionInit() && XFixesCursorInit () && XFixesRegionInit () &&
(extEntry = AddExtension(XFIXES_NAME, XFixesNumberEvents,
XFixesNumberErrors,
ProcXFixesDispatch, SProcXFixesDispatch,
XFixesResetProc, StandardMinorOpcode)) != 0)
{
XFixesReqCode = (unsigned char)extEntry->base;
XFixesEventBase = extEntry->eventBase;
XFixesErrorBase = extEntry->errorBase;
EventSwapVector[XFixesEventBase + XFixesSelectionNotify] =
(EventSwapPtr) SXFixesSelectionNotifyEvent;
EventSwapVector[XFixesEventBase + XFixesCursorNotify] =
(EventSwapPtr) SXFixesCursorNotifyEvent;
}
}