f7dae972aa
Currently a port notify event is sent even if SetPortAttribute fails. Furthermore the value field in the event will contain the value that was specified in the failed request. So any client interested in the actual value of the attribute will have to double check the current value with GetPortAttribute after receiving a port notify event. Fix the problem by sending port notifications only when SetPortAttribute succeeds. Signed-off-by: Ville Syrjälä <ville.syrjala@nokia.com> Reviewed-by: Keith Packard <keithp@keithp.com> Signed-off-by: Keith Packard <keithp@keithp.com>
1186 lines
26 KiB
C
1186 lines
26 KiB
C
/***********************************************************
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Copyright 1991 by Digital Equipment Corporation, Maynard, Massachusetts,
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and the Massachusetts Institute of Technology, Cambridge, 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 names of Digital or MIT 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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/*
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** File:
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**
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** xvmain.c --- Xv server extension main device independent module.
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**
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** Author:
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**
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** David Carver (Digital Workstation Engineering/Project Athena)
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**
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** Revisions:
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**
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** 04.09.91 Carver
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** - change: stop video always generates an event even when video
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** wasn't active
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**
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** 29.08.91 Carver
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** - change: unrealizing windows no longer preempts video
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**
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** 11.06.91 Carver
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** - changed SetPortControl to SetPortAttribute
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** - changed GetPortControl to GetPortAttribute
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** - changed QueryBestSize
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**
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** 28.05.91 Carver
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** - fixed Put and Get requests to not preempt operations to same drawable
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**
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** 15.05.91 Carver
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** - version 2.0 upgrade
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**
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** 19.03.91 Carver
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** - fixed Put and Get requests to honor grabbed ports.
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** - fixed Video requests to update di structure with new drawable, and
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** client after calling ddx.
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**
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** 24.01.91 Carver
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** - version 1.4 upgrade
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**
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** Notes:
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**
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** Port structures reference client structures in a two different
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** ways: when grabs, or video is active. Each reference is encoded
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** as fake client resources and thus when the client is goes away so
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** does the reference (it is zeroed). No other action is taken, so
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** video doesn't necessarily stop. It probably will as a result of
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** other resources going away, but if a client starts video using
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** none of its own resources, then the video will continue to play
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** after the client disappears.
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**
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**
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*/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include <string.h>
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#include <X11/X.h>
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#include <X11/Xproto.h>
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#include "misc.h"
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#include "os.h"
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#include "scrnintstr.h"
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#include "windowstr.h"
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#include "pixmapstr.h"
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#include "gc.h"
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#include "extnsionst.h"
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#include "dixstruct.h"
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#include "resource.h"
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#include "opaque.h"
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#include "input.h"
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#define GLOBAL
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#include <X11/extensions/Xv.h>
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#include <X11/extensions/Xvproto.h>
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#include "xvdix.h"
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#ifdef PANORAMIX
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#include "panoramiX.h"
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#include "panoramiXsrv.h"
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#endif
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#include "xvdisp.h"
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static DevPrivateKeyRec XvScreenKeyRec;
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#define XvScreenKey (&XvScreenKeyRec)
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unsigned long XvExtensionGeneration = 0;
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unsigned long XvScreenGeneration = 0;
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unsigned long XvResourceGeneration = 0;
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int XvReqCode;
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int XvEventBase;
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int XvErrorBase;
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unsigned long XvRTPort;
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unsigned long XvRTEncoding;
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unsigned long XvRTGrab;
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unsigned long XvRTVideoNotify;
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unsigned long XvRTVideoNotifyList;
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unsigned long XvRTPortNotify;
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/* EXTERNAL */
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static void WriteSwappedVideoNotifyEvent(xvEvent *, xvEvent *);
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static void WriteSwappedPortNotifyEvent(xvEvent *, xvEvent *);
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static Bool CreateResourceTypes(void);
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static Bool XvCloseScreen(int, ScreenPtr);
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static Bool XvDestroyPixmap(PixmapPtr);
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static Bool XvDestroyWindow(WindowPtr);
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static void XvResetProc(ExtensionEntry*);
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static int XvdiDestroyGrab(pointer, XID);
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static int XvdiDestroyEncoding(pointer, XID);
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static int XvdiDestroyVideoNotify(pointer, XID);
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static int XvdiDestroyPortNotify(pointer, XID);
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static int XvdiDestroyVideoNotifyList(pointer, XID);
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static int XvdiDestroyPort(pointer, XID);
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static int XvdiSendVideoNotify(XvPortPtr, DrawablePtr, int);
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|
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|
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/*
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** XvExtensionInit
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**
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**
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|
*/
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void
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XvExtensionInit(void)
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{
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ExtensionEntry *extEntry;
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if (!dixRegisterPrivateKey(&XvScreenKeyRec, PRIVATE_SCREEN, 0))
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return;
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/* LOOK TO SEE IF ANY SCREENS WERE INITIALIZED; IF NOT THEN
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INIT GLOBAL VARIABLES SO THE EXTENSION CAN FUNCTION */
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if (XvScreenGeneration != serverGeneration)
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{
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if (!CreateResourceTypes())
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{
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ErrorF("XvExtensionInit: Unable to allocate resource types\n");
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return;
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}
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#ifdef PANORAMIX
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XineramaRegisterConnectionBlockCallback(XineramifyXv);
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#endif
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XvScreenGeneration = serverGeneration;
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}
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if (XvExtensionGeneration != serverGeneration)
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{
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XvExtensionGeneration = serverGeneration;
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extEntry = AddExtension(XvName, XvNumEvents, XvNumErrors,
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ProcXvDispatch, SProcXvDispatch,
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XvResetProc, StandardMinorOpcode);
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if (!extEntry)
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{
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FatalError("XvExtensionInit: AddExtensions failed\n");
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}
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XvReqCode = extEntry->base;
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XvEventBase = extEntry->eventBase;
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XvErrorBase = extEntry->errorBase;
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EventSwapVector[XvEventBase+XvVideoNotify] =
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(EventSwapPtr)WriteSwappedVideoNotifyEvent;
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EventSwapVector[XvEventBase+XvPortNotify] =
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(EventSwapPtr)WriteSwappedPortNotifyEvent;
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SetResourceTypeErrorValue(XvRTPort, _XvBadPort);
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(void)MakeAtom(XvName, strlen(XvName), xTrue);
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}
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}
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static Bool
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CreateResourceTypes(void)
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{
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if (XvResourceGeneration == serverGeneration) return TRUE;
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XvResourceGeneration = serverGeneration;
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if (!(XvRTPort = CreateNewResourceType(XvdiDestroyPort, "XvRTPort")))
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{
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ErrorF("CreateResourceTypes: failed to allocate port resource.\n");
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return FALSE;
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}
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if (!(XvRTGrab = CreateNewResourceType(XvdiDestroyGrab, "XvRTGrab")))
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{
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ErrorF("CreateResourceTypes: failed to allocate grab resource.\n");
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|
return FALSE;
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|
}
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if (!(XvRTEncoding = CreateNewResourceType(XvdiDestroyEncoding,
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"XvRTEncoding")))
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{
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ErrorF("CreateResourceTypes: failed to allocate encoding resource.\n");
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return FALSE;
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}
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if (!(XvRTVideoNotify = CreateNewResourceType(XvdiDestroyVideoNotify,
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"XvRTVideoNotify")))
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{
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ErrorF("CreateResourceTypes: failed to allocate video notify resource.\n");
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return FALSE;
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}
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if (!(XvRTVideoNotifyList = CreateNewResourceType(XvdiDestroyVideoNotifyList,
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"XvRTVideoNotifyList")))
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{
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ErrorF("CreateResourceTypes: failed to allocate video notify list resource.\n");
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return FALSE;
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}
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if (!(XvRTPortNotify = CreateNewResourceType(XvdiDestroyPortNotify,
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"XvRTPortNotify")))
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{
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ErrorF("CreateResourceTypes: failed to allocate port notify resource.\n");
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return FALSE;
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}
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return TRUE;
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}
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int
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XvScreenInit(ScreenPtr pScreen)
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{
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XvScreenPtr pxvs;
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if (XvScreenGeneration != serverGeneration)
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{
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if (!CreateResourceTypes())
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{
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ErrorF("XvScreenInit: Unable to allocate resource types\n");
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return BadAlloc;
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}
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#ifdef PANORAMIX
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XineramaRegisterConnectionBlockCallback(XineramifyXv);
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#endif
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XvScreenGeneration = serverGeneration;
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}
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if (!dixRegisterPrivateKey(&XvScreenKeyRec, PRIVATE_SCREEN, 0))
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return BadAlloc;
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if (dixLookupPrivate(&pScreen->devPrivates, XvScreenKey))
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{
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ErrorF("XvScreenInit: screen devPrivates ptr non-NULL before init\n");
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}
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/* ALLOCATE SCREEN PRIVATE RECORD */
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pxvs = malloc(sizeof (XvScreenRec));
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if (!pxvs)
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{
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ErrorF("XvScreenInit: Unable to allocate screen private structure\n");
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return BadAlloc;
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}
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dixSetPrivate(&pScreen->devPrivates, XvScreenKey, pxvs);
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pxvs->DestroyPixmap = pScreen->DestroyPixmap;
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pxvs->DestroyWindow = pScreen->DestroyWindow;
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pxvs->CloseScreen = pScreen->CloseScreen;
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pScreen->DestroyPixmap = XvDestroyPixmap;
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pScreen->DestroyWindow = XvDestroyWindow;
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pScreen->CloseScreen = XvCloseScreen;
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|
return Success;
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}
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|
static Bool
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XvCloseScreen(
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int ii,
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ScreenPtr pScreen
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){
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XvScreenPtr pxvs;
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pxvs = (XvScreenPtr)dixLookupPrivate(&pScreen->devPrivates, XvScreenKey);
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pScreen->DestroyPixmap = pxvs->DestroyPixmap;
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pScreen->DestroyWindow = pxvs->DestroyWindow;
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pScreen->CloseScreen = pxvs->CloseScreen;
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(* pxvs->ddCloseScreen)(ii, pScreen);
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free(pxvs);
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dixSetPrivate(&pScreen->devPrivates, XvScreenKey, NULL);
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return (*pScreen->CloseScreen)(ii, pScreen);
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}
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|
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static void
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XvResetProc(ExtensionEntry* extEntry)
|
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{
|
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XvResetProcVector();
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}
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|
DevPrivateKey
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XvGetScreenKey(void)
|
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{
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return XvScreenKey;
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}
|
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|
|
unsigned long
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XvGetRTPort(void)
|
|
{
|
|
return XvRTPort;
|
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}
|
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|
|
static Bool
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XvDestroyPixmap(PixmapPtr pPix)
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{
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Bool status;
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ScreenPtr pScreen;
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XvScreenPtr pxvs;
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XvAdaptorPtr pa;
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int na;
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XvPortPtr pp;
|
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int np;
|
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|
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pScreen = pPix->drawable.pScreen;
|
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|
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SCREEN_PROLOGUE(pScreen, DestroyPixmap);
|
|
|
|
pxvs = (XvScreenPtr)dixLookupPrivate(&pScreen->devPrivates, XvScreenKey);
|
|
|
|
/* CHECK TO SEE IF THIS PORT IS IN USE */
|
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|
|
pa = pxvs->pAdaptors;
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na = pxvs->nAdaptors;
|
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while (na--)
|
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{
|
|
np = pa->nPorts;
|
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pp = pa->pPorts;
|
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|
|
while (np--)
|
|
{
|
|
if (pp->pDraw == (DrawablePtr)pPix)
|
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{
|
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XvdiSendVideoNotify(pp, pp->pDraw, XvPreempted);
|
|
|
|
(void)(* pp->pAdaptor->ddStopVideo)(NULL, pp, pp->pDraw);
|
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|
|
pp->pDraw = NULL;
|
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pp->client = NULL;
|
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pp->time = currentTime;
|
|
}
|
|
pp++;
|
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}
|
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pa++;
|
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}
|
|
|
|
status = (* pScreen->DestroyPixmap)(pPix);
|
|
|
|
SCREEN_EPILOGUE(pScreen, DestroyPixmap, XvDestroyPixmap);
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|
|
return status;
|
|
|
|
}
|
|
|
|
static Bool
|
|
XvDestroyWindow(WindowPtr pWin)
|
|
{
|
|
Bool status;
|
|
ScreenPtr pScreen;
|
|
XvScreenPtr pxvs;
|
|
XvAdaptorPtr pa;
|
|
int na;
|
|
XvPortPtr pp;
|
|
int np;
|
|
|
|
pScreen = pWin->drawable.pScreen;
|
|
|
|
SCREEN_PROLOGUE(pScreen, DestroyWindow);
|
|
|
|
pxvs = (XvScreenPtr)dixLookupPrivate(&pScreen->devPrivates, XvScreenKey);
|
|
|
|
/* CHECK TO SEE IF THIS PORT IS IN USE */
|
|
|
|
pa = pxvs->pAdaptors;
|
|
na = pxvs->nAdaptors;
|
|
while (na--)
|
|
{
|
|
np = pa->nPorts;
|
|
pp = pa->pPorts;
|
|
|
|
while (np--)
|
|
{
|
|
if (pp->pDraw == (DrawablePtr)pWin)
|
|
{
|
|
XvdiSendVideoNotify(pp, pp->pDraw, XvPreempted);
|
|
|
|
(void)(* pp->pAdaptor->ddStopVideo)(NULL, pp, pp->pDraw);
|
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|
|
pp->pDraw = NULL;
|
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pp->client = NULL;
|
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pp->time = currentTime;
|
|
}
|
|
pp++;
|
|
}
|
|
pa++;
|
|
}
|
|
|
|
|
|
status = (* pScreen->DestroyWindow)(pWin);
|
|
|
|
SCREEN_EPILOGUE(pScreen, DestroyWindow, XvDestroyWindow);
|
|
|
|
return status;
|
|
|
|
}
|
|
|
|
/* The XvdiVideoStopped procedure is a hook for the device dependent layer.
|
|
It provides a way for the dd layer to inform the di layer that video has
|
|
stopped in a port for reasons that the di layer had no control over; note
|
|
that it doesn't call back into the dd layer */
|
|
|
|
int
|
|
XvdiVideoStopped(XvPortPtr pPort, int reason)
|
|
{
|
|
|
|
/* IF PORT ISN'T ACTIVE THEN WE'RE DONE */
|
|
|
|
if (!pPort->pDraw) return Success;
|
|
|
|
XvdiSendVideoNotify(pPort, pPort->pDraw, reason);
|
|
|
|
pPort->pDraw = NULL;
|
|
pPort->client = NULL;
|
|
pPort->time = currentTime;
|
|
|
|
return Success;
|
|
|
|
}
|
|
|
|
static int
|
|
XvdiDestroyPort(pointer pPort, XID id)
|
|
{
|
|
return (* ((XvPortPtr)pPort)->pAdaptor->ddFreePort)(pPort);
|
|
}
|
|
|
|
static int
|
|
XvdiDestroyGrab(pointer pGrab, XID id)
|
|
{
|
|
((XvGrabPtr)pGrab)->client = NULL;
|
|
return Success;
|
|
}
|
|
|
|
static int
|
|
XvdiDestroyVideoNotify(pointer pn, XID id)
|
|
{
|
|
/* JUST CLEAR OUT THE client POINTER FIELD */
|
|
|
|
((XvVideoNotifyPtr)pn)->client = NULL;
|
|
return Success;
|
|
}
|
|
|
|
static int
|
|
XvdiDestroyPortNotify(pointer pn, XID id)
|
|
{
|
|
/* JUST CLEAR OUT THE client POINTER FIELD */
|
|
|
|
((XvPortNotifyPtr)pn)->client = NULL;
|
|
return Success;
|
|
}
|
|
|
|
static int
|
|
XvdiDestroyVideoNotifyList(pointer pn, XID id)
|
|
{
|
|
XvVideoNotifyPtr npn,cpn;
|
|
|
|
/* ACTUALLY DESTROY THE NOTITY LIST */
|
|
|
|
cpn = (XvVideoNotifyPtr)pn;
|
|
|
|
while (cpn)
|
|
{
|
|
npn = cpn->next;
|
|
if (cpn->client) FreeResource(cpn->id, XvRTVideoNotify);
|
|
free(cpn);
|
|
cpn = npn;
|
|
}
|
|
return Success;
|
|
}
|
|
|
|
static int
|
|
XvdiDestroyEncoding(pointer value, XID id)
|
|
{
|
|
return Success;
|
|
}
|
|
|
|
static int
|
|
XvdiSendVideoNotify(XvPortPtr pPort, DrawablePtr pDraw, int reason)
|
|
{
|
|
xvEvent event;
|
|
XvVideoNotifyPtr pn;
|
|
|
|
dixLookupResourceByType((pointer *)&pn, pDraw->id, XvRTVideoNotifyList,
|
|
serverClient, DixReadAccess);
|
|
|
|
while (pn)
|
|
{
|
|
event.u.u.type = XvEventBase + XvVideoNotify;
|
|
event.u.videoNotify.time = currentTime.milliseconds;
|
|
event.u.videoNotify.drawable = pDraw->id;
|
|
event.u.videoNotify.port = pPort->id;
|
|
event.u.videoNotify.reason = reason;
|
|
WriteEventsToClient(pn->client, 1, (xEventPtr)&event);
|
|
pn = pn->next;
|
|
}
|
|
|
|
return Success;
|
|
|
|
}
|
|
|
|
|
|
int
|
|
XvdiSendPortNotify(
|
|
XvPortPtr pPort,
|
|
Atom attribute,
|
|
INT32 value
|
|
){
|
|
xvEvent event;
|
|
XvPortNotifyPtr pn;
|
|
|
|
pn = pPort->pNotify;
|
|
|
|
while (pn)
|
|
{
|
|
event.u.u.type = XvEventBase + XvPortNotify;
|
|
event.u.portNotify.time = currentTime.milliseconds;
|
|
event.u.portNotify.port = pPort->id;
|
|
event.u.portNotify.attribute = attribute;
|
|
event.u.portNotify.value = value;
|
|
WriteEventsToClient(pn->client, 1, (xEventPtr)&event);
|
|
pn = pn->next;
|
|
}
|
|
|
|
return Success;
|
|
|
|
}
|
|
|
|
|
|
#define CHECK_SIZE(dw, dh, sw, sh) { \
|
|
if(!dw || !dh || !sw || !sh) return Success; \
|
|
/* The region code will break these if they are too large */ \
|
|
if((dw > 32767) || (dh > 32767) || (sw > 32767) || (sh > 32767)) \
|
|
return BadValue; \
|
|
}
|
|
|
|
|
|
int
|
|
XvdiPutVideo(
|
|
ClientPtr client,
|
|
DrawablePtr pDraw,
|
|
XvPortPtr pPort,
|
|
GCPtr pGC,
|
|
INT16 vid_x, INT16 vid_y,
|
|
CARD16 vid_w, CARD16 vid_h,
|
|
INT16 drw_x, INT16 drw_y,
|
|
CARD16 drw_w, CARD16 drw_h
|
|
){
|
|
DrawablePtr pOldDraw;
|
|
|
|
CHECK_SIZE(drw_w, drw_h, vid_w, vid_h);
|
|
|
|
/* UPDATE TIME VARIABLES FOR USE IN EVENTS */
|
|
|
|
UpdateCurrentTime();
|
|
|
|
/* CHECK FOR GRAB; IF THIS CLIENT DOESN'T HAVE THE PORT GRABBED THEN
|
|
INFORM CLIENT OF ITS FAILURE */
|
|
|
|
if (pPort->grab.client && (pPort->grab.client != client))
|
|
{
|
|
XvdiSendVideoNotify(pPort, pDraw, XvBusy);
|
|
return Success;
|
|
}
|
|
|
|
/* CHECK TO SEE IF PORT IS IN USE; IF SO THEN WE MUST DELIVER INTERRUPTED
|
|
EVENTS TO ANY CLIENTS WHO WANT THEM */
|
|
|
|
pOldDraw = pPort->pDraw;
|
|
if ((pOldDraw) && (pOldDraw != pDraw))
|
|
{
|
|
XvdiSendVideoNotify(pPort, pPort->pDraw, XvPreempted);
|
|
}
|
|
|
|
(void) (* pPort->pAdaptor->ddPutVideo)(client, pDraw, pPort, pGC,
|
|
vid_x, vid_y, vid_w, vid_h,
|
|
drw_x, drw_y, drw_w, drw_h);
|
|
|
|
if ((pPort->pDraw) && (pOldDraw != pDraw))
|
|
{
|
|
pPort->client = client;
|
|
XvdiSendVideoNotify(pPort, pPort->pDraw, XvStarted);
|
|
}
|
|
|
|
pPort->time = currentTime;
|
|
|
|
return Success;
|
|
|
|
}
|
|
|
|
int
|
|
XvdiPutStill(
|
|
ClientPtr client,
|
|
DrawablePtr pDraw,
|
|
XvPortPtr pPort,
|
|
GCPtr pGC,
|
|
INT16 vid_x, INT16 vid_y,
|
|
CARD16 vid_w, CARD16 vid_h,
|
|
INT16 drw_x, INT16 drw_y,
|
|
CARD16 drw_w, CARD16 drw_h
|
|
){
|
|
int status;
|
|
|
|
CHECK_SIZE(drw_w, drw_h, vid_w, vid_h);
|
|
|
|
/* UPDATE TIME VARIABLES FOR USE IN EVENTS */
|
|
|
|
UpdateCurrentTime();
|
|
|
|
/* CHECK FOR GRAB; IF THIS CLIENT DOESN'T HAVE THE PORT GRABBED THEN
|
|
INFORM CLIENT OF ITS FAILURE */
|
|
|
|
if (pPort->grab.client && (pPort->grab.client != client))
|
|
{
|
|
XvdiSendVideoNotify(pPort, pDraw, XvBusy);
|
|
return Success;
|
|
}
|
|
|
|
pPort->time = currentTime;
|
|
|
|
status = (* pPort->pAdaptor->ddPutStill)(client, pDraw, pPort, pGC,
|
|
vid_x, vid_y, vid_w, vid_h,
|
|
drw_x, drw_y, drw_w, drw_h);
|
|
|
|
return status;
|
|
|
|
}
|
|
|
|
int
|
|
XvdiPutImage(
|
|
ClientPtr client,
|
|
DrawablePtr pDraw,
|
|
XvPortPtr pPort,
|
|
GCPtr pGC,
|
|
INT16 src_x, INT16 src_y,
|
|
CARD16 src_w, CARD16 src_h,
|
|
INT16 drw_x, INT16 drw_y,
|
|
CARD16 drw_w, CARD16 drw_h,
|
|
XvImagePtr image,
|
|
unsigned char* data,
|
|
Bool sync,
|
|
CARD16 width, CARD16 height
|
|
){
|
|
CHECK_SIZE(drw_w, drw_h, src_w, src_h);
|
|
|
|
/* UPDATE TIME VARIABLES FOR USE IN EVENTS */
|
|
|
|
UpdateCurrentTime();
|
|
|
|
/* CHECK FOR GRAB; IF THIS CLIENT DOESN'T HAVE THE PORT GRABBED THEN
|
|
INFORM CLIENT OF ITS FAILURE */
|
|
|
|
if (pPort->grab.client && (pPort->grab.client != client))
|
|
{
|
|
XvdiSendVideoNotify(pPort, pDraw, XvBusy);
|
|
return Success;
|
|
}
|
|
|
|
pPort->time = currentTime;
|
|
|
|
return (* pPort->pAdaptor->ddPutImage)(client, pDraw, pPort, pGC,
|
|
src_x, src_y, src_w, src_h,
|
|
drw_x, drw_y, drw_w, drw_h,
|
|
image, data, sync, width, height);
|
|
}
|
|
|
|
|
|
int
|
|
XvdiGetVideo(
|
|
ClientPtr client,
|
|
DrawablePtr pDraw,
|
|
XvPortPtr pPort,
|
|
GCPtr pGC,
|
|
INT16 vid_x, INT16 vid_y,
|
|
CARD16 vid_w, CARD16 vid_h,
|
|
INT16 drw_x, INT16 drw_y,
|
|
CARD16 drw_w, CARD16 drw_h
|
|
){
|
|
DrawablePtr pOldDraw;
|
|
|
|
CHECK_SIZE(drw_w, drw_h, vid_w, vid_h);
|
|
|
|
/* UPDATE TIME VARIABLES FOR USE IN EVENTS */
|
|
|
|
UpdateCurrentTime();
|
|
|
|
/* CHECK FOR GRAB; IF THIS CLIENT DOESN'T HAVE THE PORT GRABBED THEN
|
|
INFORM CLIENT OF ITS FAILURE */
|
|
|
|
if (pPort->grab.client && (pPort->grab.client != client))
|
|
{
|
|
XvdiSendVideoNotify(pPort, pDraw, XvBusy);
|
|
return Success;
|
|
}
|
|
|
|
/* CHECK TO SEE IF PORT IS IN USE; IF SO THEN WE MUST DELIVER INTERRUPTED
|
|
EVENTS TO ANY CLIENTS WHO WANT THEM */
|
|
|
|
pOldDraw = pPort->pDraw;
|
|
if ((pOldDraw) && (pOldDraw != pDraw))
|
|
{
|
|
XvdiSendVideoNotify(pPort, pPort->pDraw, XvPreempted);
|
|
}
|
|
|
|
(void) (* pPort->pAdaptor->ddGetVideo)(client, pDraw, pPort, pGC,
|
|
vid_x, vid_y, vid_w, vid_h,
|
|
drw_x, drw_y, drw_w, drw_h);
|
|
|
|
if ((pPort->pDraw) && (pOldDraw != pDraw))
|
|
{
|
|
pPort->client = client;
|
|
XvdiSendVideoNotify(pPort, pPort->pDraw, XvStarted);
|
|
}
|
|
|
|
pPort->time = currentTime;
|
|
|
|
return Success;
|
|
|
|
}
|
|
|
|
int
|
|
XvdiGetStill(
|
|
ClientPtr client,
|
|
DrawablePtr pDraw,
|
|
XvPortPtr pPort,
|
|
GCPtr pGC,
|
|
INT16 vid_x, INT16 vid_y,
|
|
CARD16 vid_w, CARD16 vid_h,
|
|
INT16 drw_x, INT16 drw_y,
|
|
CARD16 drw_w, CARD16 drw_h
|
|
){
|
|
int status;
|
|
|
|
CHECK_SIZE(drw_w, drw_h, vid_w, vid_h);
|
|
|
|
/* UPDATE TIME VARIABLES FOR USE IN EVENTS */
|
|
|
|
UpdateCurrentTime();
|
|
|
|
/* CHECK FOR GRAB; IF THIS CLIENT DOESN'T HAVE THE PORT GRABBED THEN
|
|
INFORM CLIENT OF ITS FAILURE */
|
|
|
|
if (pPort->grab.client && (pPort->grab.client != client))
|
|
{
|
|
XvdiSendVideoNotify(pPort, pDraw, XvBusy);
|
|
return Success;
|
|
}
|
|
|
|
status = (* pPort->pAdaptor->ddGetStill)(client, pDraw, pPort, pGC,
|
|
vid_x, vid_y, vid_w, vid_h,
|
|
drw_x, drw_y, drw_w, drw_h);
|
|
|
|
pPort->time = currentTime;
|
|
|
|
return status;
|
|
|
|
}
|
|
|
|
int
|
|
XvdiGrabPort(
|
|
ClientPtr client,
|
|
XvPortPtr pPort,
|
|
Time ctime,
|
|
int *p_result
|
|
){
|
|
unsigned long id;
|
|
TimeStamp time;
|
|
|
|
UpdateCurrentTime();
|
|
time = ClientTimeToServerTime(ctime);
|
|
|
|
if (pPort->grab.client && (client != pPort->grab.client))
|
|
{
|
|
*p_result = XvAlreadyGrabbed;
|
|
return Success;
|
|
}
|
|
|
|
if ((CompareTimeStamps(time, currentTime) == LATER) ||
|
|
(CompareTimeStamps(time, pPort->time) == EARLIER))
|
|
{
|
|
*p_result = XvInvalidTime;
|
|
return Success;
|
|
}
|
|
|
|
if (client == pPort->grab.client)
|
|
{
|
|
*p_result = Success;
|
|
return Success;
|
|
}
|
|
|
|
id = FakeClientID(client->index);
|
|
|
|
if (!AddResource(id, XvRTGrab, &pPort->grab))
|
|
{
|
|
return BadAlloc;
|
|
}
|
|
|
|
/* IF THERE IS ACTIVE VIDEO THEN STOP IT */
|
|
|
|
if ((pPort->pDraw) && (client != pPort->client))
|
|
{
|
|
XvdiStopVideo(NULL, pPort, pPort->pDraw);
|
|
}
|
|
|
|
pPort->grab.client = client;
|
|
pPort->grab.id = id;
|
|
|
|
pPort->time = currentTime;
|
|
|
|
*p_result = Success;
|
|
|
|
return Success;
|
|
|
|
}
|
|
|
|
int
|
|
XvdiUngrabPort(
|
|
ClientPtr client,
|
|
XvPortPtr pPort,
|
|
Time ctime
|
|
){
|
|
TimeStamp time;
|
|
|
|
UpdateCurrentTime();
|
|
time = ClientTimeToServerTime(ctime);
|
|
|
|
if ((!pPort->grab.client) || (client != pPort->grab.client))
|
|
{
|
|
return Success;
|
|
}
|
|
|
|
if ((CompareTimeStamps(time, currentTime) == LATER) ||
|
|
(CompareTimeStamps(time, pPort->time) == EARLIER))
|
|
{
|
|
return Success;
|
|
}
|
|
|
|
/* FREE THE GRAB RESOURCE; AND SET THE GRAB CLIENT TO NULL */
|
|
|
|
FreeResource(pPort->grab.id, XvRTGrab);
|
|
pPort->grab.client = NULL;
|
|
|
|
pPort->time = currentTime;
|
|
|
|
return Success;
|
|
|
|
}
|
|
|
|
|
|
int
|
|
XvdiSelectVideoNotify(
|
|
ClientPtr client,
|
|
DrawablePtr pDraw,
|
|
BOOL onoff
|
|
){
|
|
XvVideoNotifyPtr pn,tpn,fpn;
|
|
int rc;
|
|
|
|
/* FIND VideoNotify LIST */
|
|
|
|
rc = dixLookupResourceByType((pointer *)&pn, pDraw->id, XvRTVideoNotifyList,
|
|
client, DixWriteAccess);
|
|
if (rc != Success && rc != BadValue)
|
|
return rc;
|
|
|
|
/* IF ONE DONES'T EXIST AND NO MASK, THEN JUST RETURN */
|
|
|
|
if (!onoff && !pn) return Success;
|
|
|
|
/* IF ONE DOESN'T EXIST CREATE IT AND ADD A RESOURCE SO THAT THE LIST
|
|
WILL BE DELETED WHEN THE DRAWABLE IS DESTROYED */
|
|
|
|
if (!pn)
|
|
{
|
|
if (!(tpn = malloc(sizeof(XvVideoNotifyRec))))
|
|
return BadAlloc;
|
|
tpn->next = NULL;
|
|
if (!AddResource(pDraw->id, XvRTVideoNotifyList, tpn))
|
|
{
|
|
free(tpn);
|
|
return BadAlloc;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* LOOK TO SEE IF ENTRY ALREADY EXISTS */
|
|
|
|
fpn = NULL;
|
|
tpn = pn;
|
|
while (tpn)
|
|
{
|
|
if (tpn->client == client)
|
|
{
|
|
if (!onoff) tpn->client = NULL;
|
|
return Success;
|
|
}
|
|
if (!tpn->client) fpn = tpn; /* TAKE NOTE OF FREE ENTRY */
|
|
tpn = tpn->next;
|
|
}
|
|
|
|
/* IF TUNNING OFF, THEN JUST RETURN */
|
|
|
|
if (!onoff) return Success;
|
|
|
|
/* IF ONE ISN'T FOUND THEN ALLOCATE ONE AND LINK IT INTO THE LIST */
|
|
|
|
if (fpn)
|
|
{
|
|
tpn = fpn;
|
|
}
|
|
else
|
|
{
|
|
if (!(tpn = malloc(sizeof(XvVideoNotifyRec))))
|
|
return BadAlloc;
|
|
tpn->next = pn->next;
|
|
pn->next = tpn;
|
|
}
|
|
}
|
|
|
|
/* INIT CLIENT PTR IN CASE WE CAN'T ADD RESOURCE */
|
|
/* ADD RESOURCE SO THAT IF CLIENT EXITS THE CLIENT PTR WILL BE CLEARED */
|
|
|
|
tpn->client = NULL;
|
|
tpn->id = FakeClientID(client->index);
|
|
AddResource(tpn->id, XvRTVideoNotify, tpn);
|
|
|
|
tpn->client = client;
|
|
return Success;
|
|
|
|
}
|
|
|
|
int
|
|
XvdiSelectPortNotify(
|
|
ClientPtr client,
|
|
XvPortPtr pPort,
|
|
BOOL onoff
|
|
){
|
|
XvPortNotifyPtr pn,tpn;
|
|
|
|
/* SEE IF CLIENT IS ALREADY IN LIST */
|
|
|
|
tpn = NULL;
|
|
pn = pPort->pNotify;
|
|
while (pn)
|
|
{
|
|
if (!pn->client) tpn = pn; /* TAKE NOTE OF FREE ENTRY */
|
|
if (pn->client == client) break;
|
|
pn = pn->next;
|
|
}
|
|
|
|
/* IS THE CLIENT ALREADY ON THE LIST? */
|
|
|
|
if (pn)
|
|
{
|
|
/* REMOVE IT? */
|
|
|
|
if (!onoff)
|
|
{
|
|
pn->client = NULL;
|
|
FreeResource(pn->id, XvRTPortNotify);
|
|
}
|
|
|
|
return Success;
|
|
}
|
|
|
|
/* DIDN'T FIND IT; SO REUSE LIST ELEMENT IF ONE IS FREE OTHERWISE
|
|
CREATE A NEW ONE AND ADD IT TO THE BEGINNING OF THE LIST */
|
|
|
|
if (!tpn)
|
|
{
|
|
if (!(tpn = malloc(sizeof(XvPortNotifyRec))))
|
|
return BadAlloc;
|
|
tpn->next = pPort->pNotify;
|
|
pPort->pNotify = tpn;
|
|
}
|
|
|
|
tpn->client = client;
|
|
tpn->id = FakeClientID(client->index);
|
|
AddResource(tpn->id, XvRTPortNotify, tpn);
|
|
|
|
return Success;
|
|
|
|
}
|
|
|
|
int
|
|
XvdiStopVideo(
|
|
ClientPtr client,
|
|
XvPortPtr pPort,
|
|
DrawablePtr pDraw
|
|
){
|
|
int status;
|
|
|
|
/* IF PORT ISN'T ACTIVE THEN WE'RE DONE */
|
|
|
|
if (!pPort->pDraw || (pPort->pDraw != pDraw))
|
|
{
|
|
XvdiSendVideoNotify(pPort, pDraw, XvStopped);
|
|
return Success;
|
|
}
|
|
|
|
/* CHECK FOR GRAB; IF THIS CLIENT DOESN'T HAVE THE PORT GRABBED THEN
|
|
INFORM CLIENT OF ITS FAILURE */
|
|
|
|
if ((client) && (pPort->grab.client) && (pPort->grab.client != client))
|
|
{
|
|
XvdiSendVideoNotify(pPort, pDraw, XvBusy);
|
|
return Success;
|
|
}
|
|
|
|
XvdiSendVideoNotify(pPort, pDraw, XvStopped);
|
|
|
|
status = (* pPort->pAdaptor->ddStopVideo)(client, pPort, pDraw);
|
|
|
|
pPort->pDraw = NULL;
|
|
pPort->client = (ClientPtr)client;
|
|
pPort->time = currentTime;
|
|
|
|
return status;
|
|
|
|
}
|
|
|
|
int
|
|
XvdiPreemptVideo(
|
|
ClientPtr client,
|
|
XvPortPtr pPort,
|
|
DrawablePtr pDraw
|
|
){
|
|
int status;
|
|
|
|
/* IF PORT ISN'T ACTIVE THEN WE'RE DONE */
|
|
|
|
if (!pPort->pDraw || (pPort->pDraw != pDraw)) return Success;
|
|
|
|
XvdiSendVideoNotify(pPort, pPort->pDraw, XvPreempted);
|
|
|
|
status = (* pPort->pAdaptor->ddStopVideo)(client, pPort, pPort->pDraw);
|
|
|
|
pPort->pDraw = NULL;
|
|
pPort->client = (ClientPtr)client;
|
|
pPort->time = currentTime;
|
|
|
|
return status;
|
|
|
|
}
|
|
|
|
int
|
|
XvdiMatchPort(
|
|
XvPortPtr pPort,
|
|
DrawablePtr pDraw
|
|
){
|
|
|
|
XvAdaptorPtr pa;
|
|
XvFormatPtr pf;
|
|
int nf;
|
|
|
|
pa = pPort->pAdaptor;
|
|
|
|
if (pa->pScreen != pDraw->pScreen) return BadMatch;
|
|
|
|
nf = pa->nFormats;
|
|
pf = pa->pFormats;
|
|
|
|
while (nf--)
|
|
{
|
|
if ((pf->depth == pDraw->depth)
|
|
#if 0
|
|
&& ((pDraw->type == DRAWABLE_PIXMAP) ||
|
|
(wVisual(((WindowPtr)pDraw)) == pf->visual))
|
|
#endif
|
|
)
|
|
return Success;
|
|
pf++;
|
|
}
|
|
|
|
return BadMatch;
|
|
|
|
}
|
|
|
|
int
|
|
XvdiSetPortAttribute(
|
|
ClientPtr client,
|
|
XvPortPtr pPort,
|
|
Atom attribute,
|
|
INT32 value
|
|
){
|
|
int status;
|
|
|
|
status = (* pPort->pAdaptor->ddSetPortAttribute)(client, pPort, attribute, value);
|
|
if (status == Success)
|
|
XvdiSendPortNotify(pPort, attribute, value);
|
|
|
|
return status;
|
|
}
|
|
|
|
int
|
|
XvdiGetPortAttribute(
|
|
ClientPtr client,
|
|
XvPortPtr pPort,
|
|
Atom attribute,
|
|
INT32 *p_value
|
|
){
|
|
|
|
return
|
|
(* pPort->pAdaptor->ddGetPortAttribute)(client, pPort, attribute, p_value);
|
|
|
|
}
|
|
|
|
static void
|
|
WriteSwappedVideoNotifyEvent(xvEvent *from, xvEvent *to)
|
|
|
|
{
|
|
|
|
to->u.u.type = from->u.u.type;
|
|
to->u.u.detail = from->u.u.detail;
|
|
cpswaps(from->u.videoNotify.sequenceNumber,
|
|
to->u.videoNotify.sequenceNumber);
|
|
cpswapl(from->u.videoNotify.time, to->u.videoNotify.time);
|
|
cpswapl(from->u.videoNotify.drawable, to->u.videoNotify.drawable);
|
|
cpswapl(from->u.videoNotify.port, to->u.videoNotify.port);
|
|
|
|
}
|
|
|
|
static void
|
|
WriteSwappedPortNotifyEvent(xvEvent *from, xvEvent *to)
|
|
|
|
{
|
|
|
|
to->u.u.type = from->u.u.type;
|
|
to->u.u.detail = from->u.u.detail;
|
|
cpswaps(from->u.portNotify.sequenceNumber, to->u.portNotify.sequenceNumber);
|
|
cpswapl(from->u.portNotify.time, to->u.portNotify.time);
|
|
cpswapl(from->u.portNotify.port, to->u.portNotify.port);
|
|
cpswapl(from->u.portNotify.value, to->u.portNotify.value);
|
|
|
|
}
|