479 lines
14 KiB
C
479 lines
14 KiB
C
/*
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* Copyright © 2006 Keith Packard
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*
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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 copyright
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* notice and this permission notice appear in supporting documentation, and
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* that the name of the copyright holders not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. The copyright holders make no representations
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* about the suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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/*
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* This Xinerama implementation comes from the SiS driver which has
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* the following notice:
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*/
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/*
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* SiS driver main code
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*
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* Copyright (C) 2001-2005 by Thomas Winischhofer, Vienna, Austria.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1) Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2) Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3) The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Author: Thomas Winischhofer <thomas@winischhofer.net>
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* - driver entirely rewritten since 2001, only basic structure taken from
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* old code (except sis_dri.c, sis_shadow.c, sis_accel.c and parts of
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* sis_dga.c; these were mostly taken over; sis_dri.c was changed for
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* new versions of the DRI layer)
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*
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* This notice covers the entire driver code unless indicated otherwise.
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*
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* Formerly based on code which was
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* Copyright (C) 1998, 1999 by Alan Hourihane, Wigan, England.
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* Written by:
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* Alan Hourihane <alanh@fairlite.demon.co.uk>,
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* Mike Chapman <mike@paranoia.com>,
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* Juanjo Santamarta <santamarta@ctv.es>,
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* Mitani Hiroshi <hmitani@drl.mei.co.jp>,
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* David Thomas <davtom@dream.org.uk>.
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*/
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#include "randrstr.h"
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#include "swaprep.h"
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#include <X11/extensions/panoramiXproto.h>
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#define RR_XINERAMA_MAJOR_VERSION 1
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#define RR_XINERAMA_MINOR_VERSION 1
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/* Xinerama is not multi-screen capable; just report about screen 0 */
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#define RR_XINERAMA_SCREEN 0
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static int ProcRRXineramaQueryVersion(ClientPtr client);
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static int ProcRRXineramaGetState(ClientPtr client);
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static int ProcRRXineramaGetScreenCount(ClientPtr client);
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static int ProcRRXineramaGetScreenSize(ClientPtr client);
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static int ProcRRXineramaIsActive(ClientPtr client);
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static int ProcRRXineramaQueryScreens(ClientPtr client);
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static int SProcRRXineramaDispatch(ClientPtr client);
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/* Proc */
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int
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ProcRRXineramaQueryVersion(ClientPtr client)
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{
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xPanoramiXQueryVersionReply rep;
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register int n;
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REQUEST_SIZE_MATCH(xPanoramiXQueryVersionReq);
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rep.type = X_Reply;
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rep.length = 0;
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rep.sequenceNumber = client->sequence;
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rep.majorVersion = RR_XINERAMA_MAJOR_VERSION;
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rep.minorVersion = RR_XINERAMA_MINOR_VERSION;
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if(client->swapped) {
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swaps(&rep.sequenceNumber, n);
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swapl(&rep.length, n);
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swaps(&rep.majorVersion, n);
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swaps(&rep.minorVersion, n);
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}
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WriteToClient(client, sizeof(xPanoramiXQueryVersionReply), (char *)&rep);
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return (client->noClientException);
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}
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int
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ProcRRXineramaGetState(ClientPtr client)
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{
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REQUEST(xPanoramiXGetStateReq);
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WindowPtr pWin;
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xPanoramiXGetStateReply rep;
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register int n, rc;
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ScreenPtr pScreen;
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rrScrPrivPtr pScrPriv;
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Bool active = FALSE;
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REQUEST_SIZE_MATCH(xPanoramiXGetStateReq);
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rc = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess);
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if(rc != Success)
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return rc;
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pScreen = pWin->drawable.pScreen;
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pScrPriv = rrGetScrPriv(pScreen);
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if (pScrPriv)
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{
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/* XXX do we need more than this? */
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active = TRUE;
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}
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rep.type = X_Reply;
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rep.length = 0;
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rep.sequenceNumber = client->sequence;
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rep.state = active;
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rep.window = stuff->window;
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if(client->swapped) {
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swaps (&rep.sequenceNumber, n);
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swapl (&rep.length, n);
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swapl (&rep.window, n);
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}
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WriteToClient(client, sizeof(xPanoramiXGetStateReply), (char *)&rep);
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return client->noClientException;
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}
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static Bool
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RRXineramaCrtcActive (RRCrtcPtr crtc)
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{
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return crtc->mode != NULL && crtc->numOutputs > 0;
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}
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static int
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RRXineramaScreenCount (ScreenPtr pScreen)
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{
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int i, n;
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n = 0;
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if (rrGetScrPriv (pScreen))
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{
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rrScrPriv(pScreen);
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for (i = 0; i < pScrPriv->numCrtcs; i++)
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if (RRXineramaCrtcActive (pScrPriv->crtcs[i]))
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n++;
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}
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return n;
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}
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static Bool
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RRXineramaScreenActive (ScreenPtr pScreen)
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{
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return RRXineramaScreenCount (pScreen) > 0;
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}
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int
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ProcRRXineramaGetScreenCount(ClientPtr client)
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{
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REQUEST(xPanoramiXGetScreenCountReq);
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WindowPtr pWin;
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xPanoramiXGetScreenCountReply rep;
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register int n, rc;
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REQUEST_SIZE_MATCH(xPanoramiXGetScreenCountReq);
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rc = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess);
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if (rc != Success)
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return rc;
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rep.type = X_Reply;
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rep.length = 0;
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rep.sequenceNumber = client->sequence;
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rep.ScreenCount = RRXineramaScreenCount (pWin->drawable.pScreen);
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rep.window = stuff->window;
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if(client->swapped) {
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swaps(&rep.sequenceNumber, n);
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swapl(&rep.length, n);
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swapl(&rep.window, n);
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}
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WriteToClient(client, sizeof(xPanoramiXGetScreenCountReply), (char *)&rep);
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return client->noClientException;
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}
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int
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ProcRRXineramaGetScreenSize(ClientPtr client)
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{
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REQUEST(xPanoramiXGetScreenSizeReq);
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WindowPtr pWin, pRoot;
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ScreenPtr pScreen;
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xPanoramiXGetScreenSizeReply rep;
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register int n, rc;
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REQUEST_SIZE_MATCH(xPanoramiXGetScreenSizeReq);
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rc = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess);
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if (rc != Success)
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return rc;
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pScreen = pWin->drawable.pScreen;
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pRoot = WindowTable[pScreen->myNum];
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rep.type = X_Reply;
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rep.length = 0;
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rep.sequenceNumber = client->sequence;
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rep.width = pRoot->drawable.width;
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rep.height = pRoot->drawable.height;
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rep.window = stuff->window;
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rep.screen = stuff->screen;
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if(client->swapped) {
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swaps(&rep.sequenceNumber, n);
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swapl(&rep.length, n);
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swapl(&rep.width, n);
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swapl(&rep.height, n);
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swapl(&rep.window, n);
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swapl(&rep.screen, n);
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}
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WriteToClient(client, sizeof(xPanoramiXGetScreenSizeReply), (char *)&rep);
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return client->noClientException;
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}
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int
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ProcRRXineramaIsActive(ClientPtr client)
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{
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xXineramaIsActiveReply rep;
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REQUEST_SIZE_MATCH(xXineramaIsActiveReq);
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memset(&rep, 0, sizeof(xXineramaIsActiveReply));
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rep.type = X_Reply;
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rep.length = 0;
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rep.sequenceNumber = client->sequence;
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rep.state = RRXineramaScreenActive (screenInfo.screens[RR_XINERAMA_SCREEN]);
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if(client->swapped) {
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register int n;
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swaps(&rep.sequenceNumber, n);
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swapl(&rep.length, n);
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swapl(&rep.state, n);
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}
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WriteToClient(client, sizeof(xXineramaIsActiveReply), (char *) &rep);
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return client->noClientException;
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}
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static void
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RRXineramaWriteCrtc(ClientPtr client, RRCrtcPtr crtc)
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{
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xXineramaScreenInfo scratch;
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if (RRXineramaCrtcActive (crtc))
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{
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ScreenPtr pScreen = crtc->pScreen;
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rrScrPrivPtr pScrPriv = rrGetScrPriv(pScreen);
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BoxRec panned_area;
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/* Check to see if crtc is panned and return the full area when applicable. */
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if (pScrPriv && pScrPriv->rrGetPanning &&
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pScrPriv->rrGetPanning (pScreen, crtc, &panned_area, NULL, NULL) &&
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(panned_area.x2 > panned_area.x1) && (panned_area.y2 > panned_area.y1)) {
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scratch.x_org = panned_area.x1;
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scratch.y_org = panned_area.y1;
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scratch.width = panned_area.x2 - panned_area.x1;
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scratch.height = panned_area.y2 - panned_area.y1;
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} else {
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int width, height;
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RRCrtcGetScanoutSize (crtc, &width, &height);
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scratch.x_org = crtc->x;
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scratch.y_org = crtc->y;
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scratch.width = width;
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scratch.height = height;
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}
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if(client->swapped) {
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register int n;
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swaps(&scratch.x_org, n);
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swaps(&scratch.y_org, n);
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swaps(&scratch.width, n);
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swaps(&scratch.height, n);
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}
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WriteToClient(client, sz_XineramaScreenInfo, &scratch);
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}
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}
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int
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ProcRRXineramaQueryScreens(ClientPtr client)
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{
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xXineramaQueryScreensReply rep;
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ScreenPtr pScreen = screenInfo.screens[RR_XINERAMA_SCREEN];
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REQUEST_SIZE_MATCH(xXineramaQueryScreensReq);
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if (RRXineramaScreenActive (pScreen))
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RRGetInfo (pScreen, FALSE);
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rep.type = X_Reply;
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rep.sequenceNumber = client->sequence;
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rep.number = RRXineramaScreenCount (pScreen);
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rep.length = rep.number * sz_XineramaScreenInfo >> 2;
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if(client->swapped) {
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register int n;
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swaps(&rep.sequenceNumber, n);
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swapl(&rep.length, n);
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swapl(&rep.number, n);
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}
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WriteToClient(client, sizeof(xXineramaQueryScreensReply), (char *)&rep);
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if(rep.number) {
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rrScrPriv(pScreen);
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int i;
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int has_primary = 0;
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if (pScrPriv->primaryOutput && pScrPriv->primaryOutput->crtc) {
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has_primary = 1;
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RRXineramaWriteCrtc(client, pScrPriv->primaryOutput->crtc);
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}
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for(i = 0; i < pScrPriv->numCrtcs; i++) {
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if (has_primary &&
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pScrPriv->primaryOutput->crtc == pScrPriv->crtcs[i])
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{
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has_primary = 0;
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continue;
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}
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RRXineramaWriteCrtc(client, pScrPriv->crtcs[i]);
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}
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}
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return client->noClientException;
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}
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static int
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ProcRRXineramaDispatch(ClientPtr client)
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{
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REQUEST(xReq);
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switch (stuff->data) {
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case X_PanoramiXQueryVersion:
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return ProcRRXineramaQueryVersion(client);
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case X_PanoramiXGetState:
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return ProcRRXineramaGetState(client);
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case X_PanoramiXGetScreenCount:
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return ProcRRXineramaGetScreenCount(client);
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case X_PanoramiXGetScreenSize:
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return ProcRRXineramaGetScreenSize(client);
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case X_XineramaIsActive:
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return ProcRRXineramaIsActive(client);
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case X_XineramaQueryScreens:
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return ProcRRXineramaQueryScreens(client);
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}
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return BadRequest;
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}
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/* SProc */
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static int
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SProcRRXineramaQueryVersion (ClientPtr client)
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{
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REQUEST(xPanoramiXQueryVersionReq);
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register int n;
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swaps(&stuff->length,n);
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REQUEST_SIZE_MATCH (xPanoramiXQueryVersionReq);
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return ProcRRXineramaQueryVersion(client);
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}
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static int
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SProcRRXineramaGetState(ClientPtr client)
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{
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REQUEST(xPanoramiXGetStateReq);
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register int n;
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swaps (&stuff->length, n);
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REQUEST_SIZE_MATCH(xPanoramiXGetStateReq);
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swapl (&stuff->window, n);
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return ProcRRXineramaGetState(client);
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}
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static int
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SProcRRXineramaGetScreenCount(ClientPtr client)
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{
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REQUEST(xPanoramiXGetScreenCountReq);
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register int n;
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swaps (&stuff->length, n);
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REQUEST_SIZE_MATCH(xPanoramiXGetScreenCountReq);
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swapl (&stuff->window, n);
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return ProcRRXineramaGetScreenCount(client);
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}
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static int
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SProcRRXineramaGetScreenSize(ClientPtr client)
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{
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REQUEST(xPanoramiXGetScreenSizeReq);
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register int n;
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swaps (&stuff->length, n);
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REQUEST_SIZE_MATCH(xPanoramiXGetScreenSizeReq);
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swapl (&stuff->window, n);
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swapl (&stuff->screen, n);
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return ProcRRXineramaGetScreenSize(client);
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}
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static int
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SProcRRXineramaIsActive(ClientPtr client)
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{
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REQUEST(xXineramaIsActiveReq);
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register int n;
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swaps (&stuff->length, n);
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REQUEST_SIZE_MATCH(xXineramaIsActiveReq);
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return ProcRRXineramaIsActive(client);
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}
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static int
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SProcRRXineramaQueryScreens(ClientPtr client)
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{
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REQUEST(xXineramaQueryScreensReq);
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register int n;
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swaps (&stuff->length, n);
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REQUEST_SIZE_MATCH(xXineramaQueryScreensReq);
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return ProcRRXineramaQueryScreens(client);
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}
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int
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SProcRRXineramaDispatch(ClientPtr client)
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{
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REQUEST(xReq);
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switch (stuff->data) {
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case X_PanoramiXQueryVersion:
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return SProcRRXineramaQueryVersion(client);
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case X_PanoramiXGetState:
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return SProcRRXineramaGetState(client);
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case X_PanoramiXGetScreenCount:
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return SProcRRXineramaGetScreenCount(client);
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case X_PanoramiXGetScreenSize:
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return SProcRRXineramaGetScreenSize(client);
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case X_XineramaIsActive:
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return SProcRRXineramaIsActive(client);
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case X_XineramaQueryScreens:
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return SProcRRXineramaQueryScreens(client);
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}
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return BadRequest;
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}
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void
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RRXineramaExtensionInit(void)
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{
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#ifdef PANORAMIX
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if(!noPanoramiXExtension)
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return;
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#endif
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/*
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* Xinerama isn't capable enough to have multiple protocol screens each
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* with their own output geometry. So if there's more than one protocol
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* screen, just don't even try.
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*/
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if (screenInfo.numScreens > 1)
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return;
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(void) AddExtension(PANORAMIX_PROTOCOL_NAME, 0,0,
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ProcRRXineramaDispatch,
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SProcRRXineramaDispatch,
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NULL,
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StandardMinorOpcode);
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}
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