xserver-multidpi/xfixes/xfixes.c
Paulo Cesar Pereira de Andrade 49f77fff14 Rework symbol visibility for easier maintenance
Save in a few special cases, _X_EXPORT should not be used in C source
files. Instead, it should be used in headers, and the proper C source
include that header. Some special cases are symbols that need to be
shared between modules, but not expected to be used by external drivers,
and symbols that are accessible via LoaderSymbol/dlopen.

  This patch also adds conditionally some new sdk header files, depending
on extensions enabled. These files were added to match pattern for
other extensions/modules, that is, have the headers "deciding" symbol
visibility in the sdk. These headers are:
o Xext/panoramiXsrv.h, Xext/panoramiX.h
o fbpict.h (unconditionally)
o vidmodeproc.h
o mioverlay.h (unconditionally, used only by xaa)
o xfixes.h (unconditionally, symbols required by dri2)

  LoaderSymbol and similar functions now don't have different prototypes,
in loaderProcs.h and xf86Module.h, so that both headers can be included,
without the need of defining IN_LOADER.

  xf86NewInputDevice() device prototype readded to xf86Xinput.h, but
not exported (and with a comment about it).
2008-12-03 05:43:34 -02:00

264 lines
8.8 KiB
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 XFixesClientPrivateKeyIndex;
static DevPrivateKey XFixesClientPrivateKey = &XFixesClientPrivateKeyIndex;
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;
if (!dixRequestPrivate(XFixesClientPrivateKey, 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;
}
}