250 lines
9.3 KiB
C
250 lines
9.3 KiB
C
/***********************************************************
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Copyright 1987, 1998 The Open Group
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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
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the name of Digital not be
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used in advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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SOFTWARE.
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******************************************************************/
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#ifndef DIX_H
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#define DIX_H
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#include "callback.h"
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#include "gc.h"
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#include "window.h"
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#include "input.h"
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#include "cursor.h"
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#include "events.h"
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#include <X11/extensions/XI.h>
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#define EARLIER -1
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#define SAMETIME 0
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#define LATER 1
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#define NullClient ((ClientPtr) 0)
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#define REQUEST(type) \
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type * stuff = (type *)client->requestBuffer;
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#define ARRAY_SIZE(a) (sizeof((a)) / sizeof((a)[0]))
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#define REQUEST_SIZE_MATCH(req) \
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do { \
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if ((sizeof(req) >> 2) != client->req_len) \
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return(BadLength); \
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} while (0)
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#define REQUEST_AT_LEAST_SIZE(req) \
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do { \
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if ((sizeof(req) >> 2) > client->req_len) \
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return(BadLength); \
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} while (0)
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#define REQUEST_AT_LEAST_EXTRA_SIZE(req, extra) \
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do { \
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if (((sizeof(req) + ((uint64_t) (extra))) >> 2) > client->req_len) \
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return(BadLength); \
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} while (0)
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#define REQUEST_FIXED_SIZE(req, n) \
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do { \
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if ((((sizeof(req)) >> 2) > client->req_len) || \
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(((n) >> 2) >= client->req_len) || \
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((((uint64_t) sizeof(req) + (n) + 3) >> 2) != (uint64_t) client->req_len)) \
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return(BadLength); \
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} while (0)
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#define WriteReplyToClient(pClient, size, pReply) \
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do { \
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if ((pClient)->swapped) \
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(*ReplySwapVector[((xReq *)(pClient)->requestBuffer)->reqType]) \
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(pClient, (int)(size), pReply); \
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else \
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WriteToClient(pClient, (int)(size), (pReply)); \
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} while (0)
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#define WriteSwappedDataToClient(pClient, size, pbuf) \
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do { \
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if ((pClient)->swapped) \
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(*(pClient)->pSwapReplyFunc)(pClient, (int)(size), pbuf); \
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else \
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WriteToClient(pClient, (int)(size), (pbuf)); \
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} while (0)
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typedef struct _TimeStamp *TimeStampPtr;
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#ifndef _XTYPEDEF_CLIENTPTR
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typedef struct _Client *ClientPtr;
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#define _XTYPEDEF_CLIENTPTR
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#endif
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typedef struct _WorkQueue *WorkQueuePtr;
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extern _X_EXPORT ClientPtr clients[MAXCLIENTS];
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extern _X_EXPORT ClientPtr serverClient;
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extern _X_EXPORT int currentMaxClients;
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typedef struct _TimeStamp {
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CARD32 months; /* really ~49.7 days */
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CARD32 milliseconds;
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} TimeStamp;
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/* dispatch.c */
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extern _X_EXPORT void UpdateCurrentTime(void);
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extern _X_EXPORT void UpdateCurrentTimeIf(void);
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/*
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* @brief dereference a pixmap and destroy it when not used anymore
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*
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* Despite the name, this function unref's the pixmap, and only destroys it when
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* the pixmap isn't used anymore. (perhaps it should be renamed to dixUnrefPixmap())
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*
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* Note: it's also used as resource destructor callback, hence that strange args.
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* (not actually finest art, but for now a good compromise, since it's already
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* existing and exported, thus can easily be used by drivers, w/o breaking compat)
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*
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* @param pPixmap pointer to pixmap (PixmapPtr) that should be unref'ed
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* @param unused ignored, only for matching the resource destructor prototype
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*/
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_X_EXPORT int dixDestroyPixmap(void *pPixmap, XID unused);
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/* dixutils.c */
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extern _X_EXPORT int dixLookupWindow(WindowPtr *result,
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XID id,
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ClientPtr client, Mask access_mode);
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extern _X_EXPORT int dixLookupDrawable(DrawablePtr *result,
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XID id,
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ClientPtr client,
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Mask type_mask, Mask access_mode);
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extern _X_EXPORT int dixLookupFontable(FontPtr *result,
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XID id,
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ClientPtr client, Mask access_mode);
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extern _X_EXPORT void NoopDDA(void);
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typedef void (*ServerBlockHandlerProcPtr) (void *blockData,
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void *timeout);
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typedef void (*ServerWakeupHandlerProcPtr) (void *blockData,
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int result);
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extern _X_EXPORT Bool RegisterBlockAndWakeupHandlers(ServerBlockHandlerProcPtr blockHandler,
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ServerWakeupHandlerProcPtr wakeupHandler,
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void *blockData);
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extern _X_EXPORT void RemoveBlockAndWakeupHandlers(ServerBlockHandlerProcPtr blockHandler,
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ServerWakeupHandlerProcPtr wakeupHandler,
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void *blockData);
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extern _X_EXPORT Bool QueueWorkProc(Bool (*function)(ClientPtr clientUnused,
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void *closure),
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ClientPtr client,
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void *closure);
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/* atom.c */
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extern _X_EXPORT Atom MakeAtom(const char * /*string */ ,
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unsigned /*len */ ,
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Bool /*makeit */ );
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extern _X_EXPORT Bool ValidAtom(Atom /*atom */ );
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extern _X_EXPORT const char *NameForAtom(Atom /*atom */ );
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/* events.c */
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extern _X_EXPORT void
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WriteEventsToClient(ClientPtr /*pClient */ ,
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int /*count */ ,
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xEventPtr /*events */ );
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/*
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* ServerGrabCallback stuff
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*/
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extern _X_EXPORT CallbackListPtr ServerGrabCallback;
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typedef enum { SERVER_GRABBED, SERVER_UNGRABBED,
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CLIENT_PERVIOUS, CLIENT_IMPERVIOUS
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} ServerGrabState;
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typedef struct {
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ClientPtr client;
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ServerGrabState grabstate;
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} ServerGrabInfoRec;
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/*
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* EventCallback stuff
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*/
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extern _X_EXPORT CallbackListPtr EventCallback;
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typedef struct {
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ClientPtr client;
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xEventPtr events;
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int count;
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} EventInfoRec;
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typedef struct {
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InternalEvent *event;
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DeviceIntPtr device;
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} DeviceEventInfoRec;
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extern _X_EXPORT void *lastGLContext;
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/**
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* @brief get display string for given screen
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*
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* Entry point for drivers/modules that really need to know what
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* display ID we're running on (eg. xrdp).
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*
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* @param pScreen pointer to ScreenRec to query.
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* @return pointer to string, valid as long as the pScreen is, owned by DIX.
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*/
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_X_EXPORT const char *dixGetDisplayName(ScreenPtr *pScreen);
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#endif /* DIX_H */
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