diff options
Diffstat (limited to 'vcl/unx/generic/app/randrwrapper.cxx')
| -rw-r--r-- | vcl/unx/generic/app/randrwrapper.cxx | 360 |
1 files changed, 360 insertions, 0 deletions
diff --git a/vcl/unx/generic/app/randrwrapper.cxx b/vcl/unx/generic/app/randrwrapper.cxx new file mode 100644 index 000000000000..e7f37c00e2ca --- /dev/null +++ b/vcl/unx/generic/app/randrwrapper.cxx @@ -0,0 +1,360 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +#ifdef USE_RANDR + +#include <tools/prex.h> +#include <X11/extensions/Xrandr.h> +#include <tools/postx.h> + +#include "osl/module.h" +#include "rtl/ustring.hxx" + +namespace +{ + +# ifdef XRANDR_DLOPEN + +class RandRWrapper +{ + oslModule m_pRandRLib; + + // function pointers + Bool(*m_pXRRQueryExtension)(Display*,int*,int*); + Status(*m_pXRRQueryVersion)(Display*,int*,int*); + XRRScreenConfiguration*(*m_pXRRGetScreenInfo)(Display*,Drawable); + void(*m_pXRRFreeScreenConfigInfo)(XRRScreenConfiguration*); + void(*m_pXRRSelectInput)(Display*,XLIB_Window,int); + int(*m_pXRRUpdateConfiguration)(XEvent*); + XRRScreenSize*(*m_pXRRSizes)(Display*,int,int*); + XRRScreenSize*(*m_pXRRConfigSizes)(XRRScreenConfiguration*,int*); + SizeID(*m_pXRRConfigCurrentConfiguration)(XRRScreenConfiguration*,Rotation*); + int(*m_pXRRRootToScreen)(Display*, XLIB_Window); + + bool m_bValid; + + void initFromModule(); + + RandRWrapper(Display*); + ~RandRWrapper(); +public: + static RandRWrapper& get(Display*); + static void releaseWrapper(); + + Bool XRRQueryExtension(Display* i_pDisp, int* o_event_base, int* o_error_base ) + { + Bool bRet = False; + if( m_bValid ) + bRet = m_pXRRQueryExtension( i_pDisp, o_event_base, o_error_base ); + return bRet; + } + Status XRRQueryVersion( Display* i_pDisp, int* o_major, int* o_minor ) + { + return m_bValid ? m_pXRRQueryVersion( i_pDisp, o_major, o_minor ) : 0; + } + XRRScreenConfiguration* XRRGetScreenInfo( Display* i_pDisp, Drawable i_aDrawable ) + { + return m_bValid ? m_pXRRGetScreenInfo( i_pDisp, i_aDrawable ) : NULL; + } + void XRRFreeScreenConfigInfo( XRRScreenConfiguration* i_pConfig ) + { + if( m_bValid ) + m_pXRRFreeScreenConfigInfo( i_pConfig ); + } + void XRRSelectInput( Display* i_pDisp, XLIB_Window i_window, int i_nMask ) + { + if( m_bValid ) + m_pXRRSelectInput( i_pDisp, i_window, i_nMask ); + } + int XRRUpdateConfiguration( XEvent* i_pEvent ) + { + return m_bValid ? m_pXRRUpdateConfiguration( i_pEvent ) : 0; + } + XRRScreenSize* XRRSizes( Display* i_pDisp, int i_screen, int* o_nscreens ) + { + return m_bValid ? m_pXRRSizes( i_pDisp, i_screen, o_nscreens ) : NULL; + } + XRRScreenSize* XRRConfigSizes( XRRScreenConfiguration* i_pConfig, int* o_nSizes ) + { + return m_bValid ? m_pXRRConfigSizes( i_pConfig, o_nSizes ) : NULL; + } + SizeID XRRConfigCurrentConfiguration( XRRScreenConfiguration* i_pConfig, Rotation* o_pRot ) + { + return m_bValid ? m_pXRRConfigCurrentConfiguration( i_pConfig, o_pRot ) : 0; + } + int XRRRootToScreen( Display *dpy, XLIB_Window root ) + { + return m_bValid ? m_pXRRRootToScreen( dpy, root ) : -1; + } +}; + +void RandRWrapper::initFromModule() +{ + m_pXRRQueryExtension = (Bool(*)(Display*,int*,int*))osl_getAsciiFunctionSymbol( m_pRandRLib, "XRRQueryExtension" ); + m_pXRRQueryVersion = (Status(*)(Display*,int*,int*))osl_getAsciiFunctionSymbol( m_pRandRLib, "XRRQueryVersion" ); + m_pXRRGetScreenInfo = (XRRScreenConfiguration*(*)(Display*,Drawable))osl_getAsciiFunctionSymbol( m_pRandRLib, "XRRGetScreenInfo" ); + m_pXRRFreeScreenConfigInfo = (void(*)(XRRScreenConfiguration*))osl_getAsciiFunctionSymbol( m_pRandRLib, "XRRFreeScreenConfigInfo" ); + m_pXRRSelectInput = (void(*)(Display*,XLIB_Window,int))osl_getAsciiFunctionSymbol( m_pRandRLib, "XRRSelectInput" ); + m_pXRRUpdateConfiguration = (int(*)(XEvent*))osl_getAsciiFunctionSymbol( m_pRandRLib, "XRRUpdateConfiguration" ); + m_pXRRSizes = (XRRScreenSize*(*)(Display*,int,int*))osl_getAsciiFunctionSymbol( m_pRandRLib, "XRRSizes" ); + m_pXRRConfigSizes = (XRRScreenSize*(*)(XRRScreenConfiguration*,int*))osl_getAsciiFunctionSymbol( m_pRandRLib, "XRRConfigSizes" ); + m_pXRRConfigCurrentConfiguration = (SizeID(*)(XRRScreenConfiguration*,Rotation*))osl_getAsciiFunctionSymbol( m_pRandRLib, "XRRConfigCurrentConfiguration" ); + m_pXRRRootToScreen = (int(*)(Display*,XLIB_Window))osl_getAsciiFunctionSymbol( m_pRandRLib, "XRRRootToScreen" ); + + m_bValid = m_pXRRQueryExtension && + m_pXRRQueryVersion && + m_pXRRGetScreenInfo && + m_pXRRFreeScreenConfigInfo && + m_pXRRSelectInput && + m_pXRRUpdateConfiguration && + m_pXRRSizes && + m_pXRRConfigSizes && + m_pXRRConfigCurrentConfiguration && + m_pXRRRootToScreen + ; +} + +RandRWrapper::RandRWrapper( Display* pDisplay ) : + m_pRandRLib( NULL ), + m_pXRRQueryExtension( NULL ), + m_pXRRQueryVersion( NULL ), + m_pXRRGetScreenInfo( NULL ), + m_pXRRFreeScreenConfigInfo( NULL ), + m_pXRRSelectInput( NULL ), + m_pXRRUpdateConfiguration( NULL ), + m_pXRRSizes( NULL ), + m_pXRRConfigSizes( NULL ), + m_pXRRConfigCurrentConfiguration( NULL ), + m_pXRRRootToScreen( NULL ), + m_bValid( false ) +{ + // first try in process space (e.g. gtk links that ?) + initFromModule(); + if( ! m_bValid ) + { + rtl::OUString aLibName( RTL_CONSTASCII_USTRINGPARAM( "libXrandr.so.2" ) ); + // load and resolve dependencies immediately + // rationale: there are older distributions where libXrandr.so.2 is not linked + // with libXext.so, resulting in a missing symbol and terminating the office + // obviously they expected libXext to be linked in global symbolspace (that is + // linked by the application), which is not the case with us (because we want + // to be able to run in headless mode even without an installed X11 library) + m_pRandRLib = osl_loadModule( aLibName.pData, SAL_LOADMODULE_DEFAULT | SAL_LOADMODULE_NOW ); + initFromModule(); + } + if( m_bValid ) + { + int nEventBase = 0, nErrorBase = 0; + if( ! m_pXRRQueryExtension( pDisplay, &nEventBase, &nErrorBase ) ) + m_bValid = false; + } +} + +RandRWrapper::~RandRWrapper() +{ + if( m_pRandRLib ) + osl_unloadModule( m_pRandRLib ); +} + +static RandRWrapper* pWrapper = NULL; + +RandRWrapper& RandRWrapper::get( Display* i_pDisplay ) +{ + if( ! pWrapper ) + pWrapper = new RandRWrapper( i_pDisplay ); + return *pWrapper; +} + +void RandRWrapper::releaseWrapper() +{ + delete pWrapper; + pWrapper = NULL; +} + +# else + +class RandRWrapper +{ + bool m_bValid; + + RandRWrapper(Display*); +public: + static RandRWrapper& get(Display*); + static void releaseWrapper(); + + Bool XRRQueryExtension(Display* i_pDisp, int* o_event_base, int* o_error_base ) + { + Bool bRet = False; + if( m_bValid ) + bRet = ::XRRQueryExtension( i_pDisp, o_event_base, o_error_base ); + return bRet; + } + Status XRRQueryVersion( Display* i_pDisp, int* o_major, int* o_minor ) + { + return m_bValid ? ::XRRQueryVersion( i_pDisp, o_major, o_minor ) : 0; + } + XRRScreenConfiguration* XRRGetScreenInfo( Display* i_pDisp, Drawable i_aDrawable ) + { + return m_bValid ? ::XRRGetScreenInfo( i_pDisp, i_aDrawable ) : NULL; + } + void XRRFreeScreenConfigInfo( XRRScreenConfiguration* i_pConfig ) + { + if( m_bValid ) + ::XRRFreeScreenConfigInfo( i_pConfig ); + } + void XRRSelectInput( Display* i_pDisp, XLIB_Window i_window, int i_nMask ) + { + if( m_bValid ) + ::XRRSelectInput( i_pDisp, i_window, i_nMask ); + } + int XRRUpdateConfiguration( XEvent* i_pEvent ) + { + return m_bValid ? ::XRRUpdateConfiguration( i_pEvent ) : 0; + } + XRRScreenSize* XRRSizes( Display* i_pDisp, int i_screen, int* o_nscreens ) + { + return m_bValid ? ::XRRSizes( i_pDisp, i_screen, o_nscreens ) : NULL; + } + XRRScreenSize* XRRConfigSizes( XRRScreenConfiguration* i_pConfig, int* o_nSizes ) + { + return m_bValid ? ::XRRConfigSizes( i_pConfig, o_nSizes ) : NULL; + } + SizeID XRRConfigCurrentConfiguration( XRRScreenConfiguration* i_pConfig, Rotation* o_pRot ) + { + return m_bValid ? ::XRRConfigCurrentConfiguration( i_pConfig, o_pRot ) : 0; + } + int XRRRootToScreen( Display *dpy, XLIB_Window root ) + { + return m_bValid ? ::XRRRootToScreen( dpy, root ) : -1; + } +}; + +RandRWrapper::RandRWrapper( Display* pDisplay ) : + m_bValid( true ) +{ + int nEventBase = 0, nErrorBase = 0; + if( !XRRQueryExtension( pDisplay, &nEventBase, &nErrorBase ) ) + m_bValid = false; +} + +static RandRWrapper* pWrapper = NULL; + +RandRWrapper& RandRWrapper::get( Display* i_pDisplay ) +{ + if( ! pWrapper ) + pWrapper = new RandRWrapper( i_pDisplay ); + return *pWrapper; +} + +void RandRWrapper::releaseWrapper() +{ + delete pWrapper; + pWrapper = NULL; +} + +#endif + +} // namespace + +#endif + +#include "unx/saldisp.hxx" +#include "unx/salframe.h" +#if OSL_DEBUG_LEVEL > 1 +#include <cstdio> +#endif + +void SalDisplay::InitRandR( XLIB_Window aRoot ) const +{ + #ifdef USE_RANDR + if( m_bUseRandRWrapper ) + RandRWrapper::get( GetDisplay() ).XRRSelectInput( GetDisplay(), aRoot, RRScreenChangeNotifyMask ); + #else + (void)aRoot; + #endif +} + +void SalDisplay::DeInitRandR() +{ + #ifdef USE_RANDR + if( m_bUseRandRWrapper ) + RandRWrapper::releaseWrapper(); +#if OSL_DEBUG_LEVEL > 1 + fprintf( stderr, "SalDisplay::DeInitRandR()\n" ); +#endif + #endif +} + +int SalDisplay::processRandREvent( XEvent* pEvent ) +{ + int nRet = 0; + #ifdef USE_RANDR + XConfigureEvent* pCnfEvent=(XConfigureEvent*)pEvent; + if( m_bUseRandRWrapper && pWrapper && pWrapper->XRRRootToScreen(GetDisplay(),pCnfEvent->window) != -1 ) + { + nRet = pWrapper->XRRUpdateConfiguration( pEvent ); + if( nRet == 1 && pEvent->type != ConfigureNotify) // this should then be a XRRScreenChangeNotifyEvent + { + // update screens + bool bNotify = false; + for( size_t i = 0; i < m_aScreens.size(); i++ ) + { + if( m_aScreens[i].m_bInit ) + { + XRRScreenConfiguration *pConfig = NULL; + XRRScreenSize *pSizes = NULL; + int nSizes = 0; + Rotation nRot = 0; + SizeID nId = 0; + + pConfig = pWrapper->XRRGetScreenInfo( GetDisplay(), m_aScreens[i].m_aRoot ); + nId = pWrapper->XRRConfigCurrentConfiguration( pConfig, &nRot ); + pSizes = pWrapper->XRRConfigSizes( pConfig, &nSizes ); + XRRScreenSize *pTargetSize = pSizes + nId; + + bNotify = bNotify || + m_aScreens[i].m_aSize.Width() != pTargetSize->width || + m_aScreens[i].m_aSize.Height() != pTargetSize->height; + + m_aScreens[i].m_aSize = Size( pTargetSize->width, pTargetSize->height ); + + pWrapper->XRRFreeScreenConfigInfo( pConfig ); + + #if OSL_DEBUG_LEVEL > 1 + fprintf( stderr, "screen %d changed to size %dx%d\n", (int)i, (int)pTargetSize->width, (int)pTargetSize->height ); + #endif + } + } + if( bNotify && ! m_aFrames.empty() ) + m_aFrames.front()->CallCallback( SALEVENT_DISPLAYCHANGED, 0 ); + } + } + #else + (void)pEvent; + #endif + return nRet; +} |