LCOV - code coverage report
Current view: top level - vcl/unx/generic/app - randrwrapper.cxx (source / functions) Hit Total Coverage
Test: commit e02a6cb2c3e2b23b203b422e4e0680877f232636 Lines: 0 71 0.0 %
Date: 2014-04-14 Functions: 0 14 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #ifdef USE_RANDR
      21             : 
      22             : #include <prex.h>
      23             : #include <X11/extensions/Xrandr.h>
      24             : #include <postx.h>
      25             : 
      26             : #include "osl/module.h"
      27             : #include "rtl/ustring.hxx"
      28             : 
      29             : namespace
      30             : {
      31             : 
      32             : # ifdef XRANDR_DLOPEN
      33             : 
      34             : class RandRWrapper
      35             : {
      36             :     oslModule m_pRandRLib;
      37             : 
      38             :     // function pointers
      39             :     Bool(*m_pXRRQueryExtension)(Display*,int*,int*);
      40             :     XRRScreenConfiguration*(*m_pXRRGetScreenInfo)(Display*,Drawable);
      41             :     void(*m_pXRRFreeScreenConfigInfo)(XRRScreenConfiguration*);
      42             :     void(*m_pXRRSelectInput)(Display*,XLIB_Window,int);
      43             :     int(*m_pXRRUpdateConfiguration)(XEvent*);
      44             :     XRRScreenSize*(*m_pXRRConfigSizes)(XRRScreenConfiguration*,int*);
      45             :     SizeID(*m_pXRRConfigCurrentConfiguration)(XRRScreenConfiguration*,Rotation*);
      46             :     int(*m_pXRRRootToScreen)(Display*, XLIB_Window);
      47             : 
      48             :     bool m_bValid;
      49             : 
      50             :     void initFromModule();
      51             : 
      52             :     RandRWrapper(Display*);
      53             :     ~RandRWrapper();
      54             : public:
      55             :     static RandRWrapper& get(Display*);
      56             :     static void releaseWrapper();
      57             : 
      58             :     Bool XRRQueryExtension(Display* i_pDisp, int* o_event_base, int* o_error_base )
      59             :     {
      60             :         Bool bRet = False;
      61             :         if( m_bValid )
      62             :             bRet = m_pXRRQueryExtension( i_pDisp, o_event_base, o_error_base );
      63             :         return bRet;
      64             :     }
      65             :     XRRScreenConfiguration* XRRGetScreenInfo( Display* i_pDisp, Drawable i_aDrawable )
      66             :     {
      67             :         return m_bValid ? m_pXRRGetScreenInfo( i_pDisp, i_aDrawable ) : NULL;
      68             :     }
      69             :     void XRRFreeScreenConfigInfo( XRRScreenConfiguration* i_pConfig )
      70             :     {
      71             :         if( m_bValid )
      72             :             m_pXRRFreeScreenConfigInfo( i_pConfig );
      73             :     }
      74             :     void XRRSelectInput( Display* i_pDisp, XLIB_Window i_window, int i_nMask )
      75             :     {
      76             :         if( m_bValid )
      77             :             m_pXRRSelectInput( i_pDisp, i_window, i_nMask );
      78             :     }
      79             :     int XRRUpdateConfiguration( XEvent* i_pEvent )
      80             :     {
      81             :         return m_bValid ? m_pXRRUpdateConfiguration( i_pEvent ) : 0;
      82             :     }
      83             :     XRRScreenSize* XRRConfigSizes( XRRScreenConfiguration* i_pConfig, int* o_nSizes )
      84             :     {
      85             :         return m_bValid ? m_pXRRConfigSizes( i_pConfig, o_nSizes ) : NULL;
      86             :     }
      87             :     SizeID XRRConfigCurrentConfiguration( XRRScreenConfiguration* i_pConfig, Rotation* o_pRot )
      88             :     {
      89             :         return m_bValid ? m_pXRRConfigCurrentConfiguration( i_pConfig, o_pRot ) : 0;
      90             :     }
      91             :     int XRRRootToScreen( Display *dpy, XLIB_Window root )
      92             :     {
      93             :         return m_bValid ? m_pXRRRootToScreen( dpy, root ) : -1;
      94             :     }
      95             : };
      96             : 
      97             : void RandRWrapper::initFromModule()
      98             : {
      99             :     m_pXRRQueryExtension = (Bool(*)(Display*,int*,int*))osl_getAsciiFunctionSymbol( m_pRandRLib, "XRRQueryExtension" );
     100             :     m_pXRRGetScreenInfo = (XRRScreenConfiguration*(*)(Display*,Drawable))osl_getAsciiFunctionSymbol( m_pRandRLib, "XRRGetScreenInfo" );
     101             :     m_pXRRFreeScreenConfigInfo = (void(*)(XRRScreenConfiguration*))osl_getAsciiFunctionSymbol( m_pRandRLib, "XRRFreeScreenConfigInfo" );
     102             :     m_pXRRSelectInput = (void(*)(Display*,XLIB_Window,int))osl_getAsciiFunctionSymbol( m_pRandRLib, "XRRSelectInput" );
     103             :     m_pXRRUpdateConfiguration = (int(*)(XEvent*))osl_getAsciiFunctionSymbol( m_pRandRLib, "XRRUpdateConfiguration" );
     104             :     m_pXRRConfigSizes = (XRRScreenSize*(*)(XRRScreenConfiguration*,int*))osl_getAsciiFunctionSymbol( m_pRandRLib, "XRRConfigSizes" );
     105             :     m_pXRRConfigCurrentConfiguration = (SizeID(*)(XRRScreenConfiguration*,Rotation*))osl_getAsciiFunctionSymbol( m_pRandRLib, "XRRConfigCurrentConfiguration" );
     106             :     m_pXRRRootToScreen = (int(*)(Display*,XLIB_Window))osl_getAsciiFunctionSymbol( m_pRandRLib, "XRRRootToScreen" );
     107             : 
     108             :     m_bValid = m_pXRRQueryExtension             &&
     109             :                m_pXRRGetScreenInfo              &&
     110             :                m_pXRRFreeScreenConfigInfo       &&
     111             :                m_pXRRSelectInput                &&
     112             :                m_pXRRUpdateConfiguration        &&
     113             :                m_pXRRConfigSizes                &&
     114             :                m_pXRRConfigCurrentConfiguration &&
     115             :                m_pXRRRootToScreen
     116             :                ;
     117             : }
     118             : 
     119             : RandRWrapper::RandRWrapper( Display* pDisplay ) :
     120             :         m_pRandRLib( NULL ),
     121             :         m_pXRRQueryExtension( NULL ),
     122             :         m_pXRRGetScreenInfo( NULL ),
     123             :         m_pXRRFreeScreenConfigInfo( NULL ),
     124             :         m_pXRRSelectInput( NULL ),
     125             :         m_pXRRUpdateConfiguration( NULL ),
     126             :         m_pXRRConfigSizes( NULL ),
     127             :         m_pXRRConfigCurrentConfiguration( NULL ),
     128             :         m_pXRRRootToScreen( NULL ),
     129             :         m_bValid( false )
     130             : {
     131             :     // first try in process space (e.g. gtk links that ?)
     132             :     initFromModule();
     133             :     if( ! m_bValid )
     134             :     {
     135             :         // load and resolve dependencies immediately
     136             :         // rationale: there are older distributions where libXrandr.so.2 is not linked
     137             :         // with libXext.so, resulting in a missing symbol and terminating the office
     138             :         // obviously they expected libXext to be linked in global symbolspace (that is
     139             :         // linked by the application), which is not the case with us (because we want
     140             :         // to be able to run in headless mode even without an installed X11 library)
     141             :         m_pRandRLib = osl_loadModule( "libXrandr.so.2", SAL_LOADMODULE_DEFAULT | SAL_LOADMODULE_NOW );
     142             :         initFromModule();
     143             :     }
     144             :     if( m_bValid )
     145             :     {
     146             :         int nEventBase = 0, nErrorBase = 0;
     147             :         if( ! m_pXRRQueryExtension( pDisplay, &nEventBase, &nErrorBase ) )
     148             :             m_bValid = false;
     149             :     }
     150             : }
     151             : 
     152             : RandRWrapper::~RandRWrapper()
     153             : {
     154             :     if( m_pRandRLib )
     155             :         osl_unloadModule( m_pRandRLib );
     156             : }
     157             : 
     158             : static RandRWrapper* pWrapper = NULL;
     159             : 
     160             : RandRWrapper& RandRWrapper::get( Display* i_pDisplay )
     161             : {
     162             :     if( ! pWrapper )
     163             :         pWrapper = new RandRWrapper( i_pDisplay );
     164             :     return *pWrapper;
     165             : }
     166             : 
     167             : void RandRWrapper::releaseWrapper()
     168             : {
     169             :     delete pWrapper;
     170             :     pWrapper = NULL;
     171             : }
     172             : 
     173             : # else
     174             : 
     175             : class RandRWrapper
     176             : {
     177             :     bool m_bValid;
     178             : 
     179             :     RandRWrapper(Display*);
     180             : public:
     181             :     static RandRWrapper& get(Display*);
     182             :     static void releaseWrapper();
     183             : 
     184           0 :     Bool XRRQueryExtension(Display* i_pDisp, int* o_event_base, int* o_error_base )
     185             :     {
     186           0 :         Bool bRet = False;
     187           0 :         if( m_bValid )
     188           0 :             bRet = ::XRRQueryExtension( i_pDisp, o_event_base, o_error_base );
     189           0 :         return bRet;
     190             :     }
     191           0 :     XRRScreenConfiguration* XRRGetScreenInfo( Display* i_pDisp, Drawable i_aDrawable )
     192             :     {
     193           0 :         return m_bValid ? ::XRRGetScreenInfo( i_pDisp, i_aDrawable ) : NULL;
     194             :     }
     195           0 :     void XRRFreeScreenConfigInfo( XRRScreenConfiguration* i_pConfig )
     196             :     {
     197           0 :         if( m_bValid )
     198           0 :             ::XRRFreeScreenConfigInfo( i_pConfig );
     199           0 :     }
     200           0 :     void XRRSelectInput( Display* i_pDisp, XLIB_Window i_window, int i_nMask )
     201             :     {
     202           0 :         if( m_bValid )
     203           0 :             ::XRRSelectInput( i_pDisp, i_window, i_nMask );
     204           0 :     }
     205           0 :     int XRRUpdateConfiguration( XEvent* i_pEvent )
     206             :     {
     207           0 :         return m_bValid ? ::XRRUpdateConfiguration( i_pEvent ) : 0;
     208             :     }
     209           0 :     XRRScreenSize* XRRConfigSizes( XRRScreenConfiguration* i_pConfig, int* o_nSizes )
     210             :     {
     211           0 :         return m_bValid ? ::XRRConfigSizes( i_pConfig, o_nSizes ) : NULL;
     212             :     }
     213           0 :     SizeID XRRConfigCurrentConfiguration( XRRScreenConfiguration* i_pConfig, Rotation* o_pRot )
     214             :     {
     215           0 :         return m_bValid ? ::XRRConfigCurrentConfiguration( i_pConfig, o_pRot ) : 0;
     216             :     }
     217           0 :     int XRRRootToScreen( Display *dpy, XLIB_Window root )
     218             :     {
     219           0 :         return m_bValid ? ::XRRRootToScreen( dpy, root ) : -1;
     220             :     }
     221             : };
     222             : 
     223           0 : RandRWrapper::RandRWrapper( Display* pDisplay ) :
     224           0 :     m_bValid( true )
     225             : {
     226           0 :     int nEventBase = 0, nErrorBase = 0;
     227           0 :     if( !XRRQueryExtension( pDisplay, &nEventBase, &nErrorBase ) )
     228           0 :         m_bValid = false;
     229           0 : }
     230             : 
     231             : static RandRWrapper* pWrapper = NULL;
     232             : 
     233           0 : RandRWrapper& RandRWrapper::get( Display* i_pDisplay )
     234             : {
     235           0 :     if( ! pWrapper )
     236           0 :         pWrapper = new RandRWrapper( i_pDisplay );
     237           0 :     return *pWrapper;
     238             : }
     239             : 
     240           0 : void RandRWrapper::releaseWrapper()
     241             : {
     242           0 :     delete pWrapper;
     243           0 :     pWrapper = NULL;
     244           0 : }
     245             : 
     246             : #endif
     247             : 
     248             : } // namespace
     249             : 
     250             : #endif
     251             : 
     252             : #include "unx/saldisp.hxx"
     253             : #include "unx/salframe.h"
     254             : #if OSL_DEBUG_LEVEL > 1
     255             : #include <cstdio>
     256             : #endif
     257             : 
     258           0 : void SalDisplay::InitRandR( XLIB_Window aRoot ) const
     259             : {
     260             :     #ifdef USE_RANDR
     261           0 :     if( m_bUseRandRWrapper )
     262           0 :         RandRWrapper::get( GetDisplay() ).XRRSelectInput( GetDisplay(), aRoot, RRScreenChangeNotifyMask );
     263             :     #else
     264             :     (void)aRoot;
     265             :     #endif
     266           0 : }
     267             : 
     268           0 : void SalDisplay::DeInitRandR()
     269             : {
     270             :     #ifdef USE_RANDR
     271           0 :     if( m_bUseRandRWrapper )
     272           0 :         RandRWrapper::releaseWrapper();
     273             : #if OSL_DEBUG_LEVEL > 1
     274             :     fprintf( stderr, "SalDisplay::DeInitRandR()\n" );
     275             : #endif
     276             :     #endif
     277           0 : }
     278             : 
     279           0 : int SalDisplay::processRandREvent( XEvent* pEvent )
     280             : {
     281           0 :     int nRet = 0;
     282             :     #ifdef USE_RANDR
     283           0 :     XConfigureEvent* pCnfEvent=(XConfigureEvent*)pEvent;
     284           0 :     if( m_bUseRandRWrapper && pWrapper && pWrapper->XRRRootToScreen(GetDisplay(),pCnfEvent->window) != -1 )
     285             :     {
     286           0 :         nRet = pWrapper->XRRUpdateConfiguration( pEvent );
     287           0 :         if( nRet == 1 && pEvent->type != ConfigureNotify) // this should then be a XRRScreenChangeNotifyEvent
     288             :         {
     289             :             // update screens
     290           0 :             bool bNotify = false;
     291           0 :             for( size_t i = 0; i < m_aScreens.size(); i++ )
     292             :             {
     293           0 :                 if( m_aScreens[i].m_bInit )
     294             :                 {
     295           0 :                     XRRScreenConfiguration *pConfig = NULL;
     296           0 :                     XRRScreenSize *pSizes = NULL;
     297           0 :                     int nSizes = 0;
     298           0 :                     Rotation nRot = 0;
     299           0 :                     SizeID nId = 0;
     300             : 
     301           0 :                     pConfig = pWrapper->XRRGetScreenInfo( GetDisplay(), m_aScreens[i].m_aRoot );
     302           0 :                     nId = pWrapper->XRRConfigCurrentConfiguration( pConfig, &nRot );
     303           0 :                     pSizes = pWrapper->XRRConfigSizes( pConfig, &nSizes );
     304           0 :                     XRRScreenSize *pTargetSize = pSizes + nId;
     305             : 
     306           0 :                     bNotify = bNotify ||
     307           0 :                               m_aScreens[i].m_aSize.Width() != pTargetSize->width ||
     308           0 :                               m_aScreens[i].m_aSize.Height() != pTargetSize->height;
     309             : 
     310           0 :                     m_aScreens[i].m_aSize = Size( pTargetSize->width, pTargetSize->height );
     311             : 
     312           0 :                     pWrapper->XRRFreeScreenConfigInfo( pConfig );
     313             : 
     314             :                     #if OSL_DEBUG_LEVEL > 1
     315             :                     fprintf( stderr, "screen %d changed to size %dx%d\n", (int)i, (int)pTargetSize->width, (int)pTargetSize->height );
     316             :                     #endif
     317             :                 }
     318             :             }
     319           0 :             if( bNotify )
     320           0 :                 emitDisplayChanged();
     321             :         }
     322             :     }
     323             :     #else
     324             :     (void)pEvent;
     325             :     #endif
     326           0 :     return nRet;
     327             : }
     328             : 
     329             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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