vcl/unx/source/gdi/xrender_peer.cxx

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  30
  31 #include <stdio.h>
  32 #include <rtl/ustring.hxx>
  33 #include <osl/module.h>
  34 //#include <osl/thread.h>
  35 using namespace rtl;
  36
  37 #include <xrender_peer.hxx>
  38
  39 #include <salunx.h>
  40 #include <saldata.hxx>
  41 #include <saldisp.hxx>
  42
  43 // ---------------------------------------------------------------------------
  44
  45 XRenderPeer::XRenderPeer()
  46 :   mpDisplay( GetX11SalData()->GetDisplay()->GetDisplay() ),
  47     mpStandardFormatA8( NULL ),
  48     mnRenderVersion( 0 ),
  49     mpRenderLib( NULL )
  50 #ifndef XRENDER_LINK
  51 ,   mpXRenderCompositeTrapezoids( NULL )
  52 ,   mpXRenderAddTraps( NULL )
  53 #endif // XRENDER_LINK
  54 {
  55     InitRenderLib();
  56 }
  57
  58 // ---------------------------------------------------------------------------
  59
  60 XRenderPeer::~XRenderPeer()
  61 {
  62     osl_unloadModule( mpRenderLib );
  63 }
  64
  65 // ---------------------------------------------------------------------------
  66
  67 XRenderPeer& XRenderPeer::GetInstance()
  68 {
  69     static XRenderPeer aPeer;
  70     return aPeer;
  71 }
  72
  73 // ---------------------------------------------------------------------------
  74
  75 void XRenderPeer::InitRenderLib()
  76 {
  77     int nDummy;
  78     if( !XQueryExtension( mpDisplay, "RENDER", &nDummy, &nDummy, &nDummy ) )
  79         return;
  80
  81 #ifndef XRENDER_LINK
  82     // we don't know if we are running on a system with xrender library
  83     // we don't want to install system libraries ourselves
  84     // => load them dynamically when they are there
  85     const OUString aLibName( RTL_CONSTASCII_USTRINGPARAM( "libXrender.so.1" ));
  86     mpRenderLib = osl_loadModule( aLibName.pData, SAL_LOADMODULE_DEFAULT );
  87     if( !mpRenderLib ) {
  88 #ifdef DEBUG
  89         fprintf( stderr, "Display can do XRender, but no %s installed.\n"
  90             "Please install for improved display performance\n", OUStringToOString( aLibName.getStr(),
  91                                                                                     osl_getThreadTextEncoding() ).getStr() );
  92 #endif
  93         return;
  94     }
  95
  96     oslGenericFunction pFunc;
  97     pFunc = osl_getAsciiFunctionSymbol( mpRenderLib, "XRenderQueryExtension" );
  98     if( !pFunc ) return;
  99     mpXRenderQueryExtension = (Bool(*)(Display*,int*,int*))pFunc;
 100
 101     pFunc = osl_getAsciiFunctionSymbol( mpRenderLib, "XRenderQueryVersion" );
 102     if( !pFunc ) return;
 103     mpXRenderQueryVersion = (void(*)(Display*,int*,int*))pFunc;
 104
 105     pFunc = osl_getAsciiFunctionSymbol( mpRenderLib, "XRenderFindVisualFormat" );
 106     if( !pFunc ) return;
 107     mpXRenderFindVisualFormat = (XRenderPictFormat*(*)(Display*,Visual*))pFunc;
 108
 109     pFunc = osl_getAsciiFunctionSymbol( mpRenderLib, "XRenderFindStandardFormat" );
 110     if( !pFunc ) return;
 111     mpXRenderFindStandardFormat = (XRenderPictFormat*(*)(Display*,int))pFunc;
 112
 113     pFunc = osl_getAsciiFunctionSymbol( mpRenderLib, "XRenderFindFormat" );
 114     if( !pFunc ) return;
 115     mpXRenderFindFormat = (XRenderPictFormat*(*)(Display*,unsigned long,
 116         const XRenderPictFormat*,int))pFunc;
 117
 118     pFunc = osl_getAsciiFunctionSymbol( mpRenderLib, "XRenderCreateGlyphSet" );
 119     if( !pFunc ) return;
 120     mpXRenderCreateGlyphSet = (GlyphSet(*)(Display*,const XRenderPictFormat*))pFunc;
 121
 122     pFunc = osl_getAsciiFunctionSymbol( mpRenderLib, "XRenderFreeGlyphSet" );
 123     if( !pFunc ) return;
 124     mpXRenderFreeGlyphSet = (void(*)(Display*,GlyphSet))pFunc;
 125
 126     pFunc = osl_getAsciiFunctionSymbol( mpRenderLib, "XRenderAddGlyphs" );
 127     if( !pFunc ) return;
 128     mpXRenderAddGlyphs = (void(*)(Display*,GlyphSet,Glyph*,const XGlyphInfo*,
 129         int,const char*,int))pFunc;
 130
 131     pFunc = osl_getAsciiFunctionSymbol( mpRenderLib, "XRenderFreeGlyphs" );
 132     if( !pFunc ) return;
 133     mpXRenderFreeGlyphs = (void(*)(Display*,GlyphSet,Glyph*,int))pFunc;
 134
 135     pFunc = osl_getAsciiFunctionSymbol( mpRenderLib, "XRenderCompositeString32" );
 136     if( !pFunc ) return;
 137     mpXRenderCompositeString32 = (void(*)(Display*,int,Picture,Picture,
 138         const XRenderPictFormat*,GlyphSet,int,int,int,int,const unsigned*,int))pFunc;
 139
 140     pFunc = osl_getAsciiFunctionSymbol( mpRenderLib, "XRenderCreatePicture" );
 141     if( !pFunc ) return;
 142     mpXRenderCreatePicture = (Picture(*)(Display*,Drawable,const XRenderPictFormat*,
 143         unsigned long,const XRenderPictureAttributes*))pFunc;
 144
 145     pFunc = osl_getAsciiFunctionSymbol( mpRenderLib, "XRenderSetPictureClipRegion" );
 146     if( !pFunc ) return;
 147     mpXRenderSetPictureClipRegion = (void(*)(Display*,Picture,XLIB_Region))pFunc;
 148
 149     pFunc = osl_getAsciiFunctionSymbol( mpRenderLib, "XRenderFreePicture" );
 150     if( !pFunc ) return;
 151     mpXRenderFreePicture = (void(*)(Display*,Picture))pFunc;
 152
 153     pFunc = osl_getAsciiFunctionSymbol( mpRenderLib, "XRenderComposite" );
 154     if( !pFunc ) return;
 155     mpXRenderComposite = (void(*)(Display*,int,Picture,Picture,Picture,
 156         int,int,int,int,int,int,unsigned,unsigned))pFunc;
 157
 158     pFunc = osl_getAsciiFunctionSymbol( mpRenderLib, "XRenderFillRectangle" );
 159     if( !pFunc ) return;
 160     mpXRenderFillRectangle = (void(*)(Display*,int,Picture,const XRenderColor*,
 161         int,int,unsigned int,unsigned int))pFunc;
 162
 163     pFunc = osl_getAsciiFunctionSymbol( mpRenderLib, "XRenderCompositeTrapezoids" );
 164 #if 0 // not having trapezoid support is supported
 165     if( !pFunc ) return;
 166 #endif
 167     mpXRenderCompositeTrapezoids = (void(*)(Display*,int,Picture,Picture,
 168         const XRenderPictFormat*,int,int,const XTrapezoid*,int))pFunc;
 169
 170     pFunc = osl_getAsciiFunctionSymbol( mpRenderLib, "XRenderAddTraps" );
 171 #if 0 // not having trapezoid support is supported
 172     if( !pFunc ) return;
 173 #endif
 174     mpXRenderAddTraps = (void(*)(Display*,Picture,int,int,const XTrap*,int))pFunc;
 175
 176 #endif // XRENDER_LINK
 177
 178     // needed to initialize libXrender internals, we already know its there
 179 #ifdef XRENDER_LINK
 180     XRenderQueryExtension( mpDisplay, &nDummy, &nDummy );
 181 #else
 182     (*mpXRenderQueryExtension)( mpDisplay, &nDummy, &nDummy );
 183 #endif
 184
 185     int nMajor, nMinor;
 186 #ifdef XRENDER_LINK
 187     XRenderQueryVersion( mpDisplay, &nMajor, &nMinor );
 188 #else
 189     (*mpXRenderQueryVersion)( mpDisplay, &nMajor, &nMinor );
 190 #endif
 191     mnRenderVersion = 16*nMajor + nMinor;
 192 }
 193
 194 // ---------------------------------------------------------------------------
 195
 196 // return mask of screens capable of XRENDER text
 197 sal_uInt32 XRenderPeer::InitRenderText( int nMaxDepth )
 198 {
 199     if( mnRenderVersion < 0x01 )
 200         return 0;
 201
 202     // #93033# disable XRENDER for old RENDER versions if XINERAMA is present
 203     int nDummy;
 204     if( XQueryExtension( mpDisplay, "XINERAMA", &nDummy, &nDummy, &nDummy ) )
 205         if( mnRenderVersion < 0x02 )
 206             return 0;
 207
 208     // the 8bit alpha mask format must be there
 209     XRenderPictFormat aPictFormat={0,0,8,{0,0,0,0,0,0,0,0xFF},0};
 210     mpStandardFormatA8 = FindPictureFormat( PictFormatAlphaMask|PictFormatDepth, aPictFormat );
 211     if( !mpStandardFormatA8 )
 212         return 0;
 213
 214     // and the visual must be supported too on at least one screen
 215     sal_uInt32 nRetMask = 0;
 216     SalDisplay* pSalDisp = GetX11SalData()->GetDisplay();
 217     const int nScreenCount = pSalDisp->GetScreenCount();
 218     XRenderPictFormat* pVisualFormat = NULL;
 219     for( int nScreen = 0; nScreen < nScreenCount; ++nScreen )
 220     {
 221         Visual* pXVisual = pSalDisp->GetVisual( nScreen ).GetVisual();
 222         pVisualFormat = FindVisualFormat( pXVisual );
 223         if( pVisualFormat != NULL )
 224             nRetMask |= 1U << nScreen;
 225     }
 226
 227     // #97763# disable XRENDER on <15bit displays for XFree<=4.2.0
 228     if( mnRenderVersion <= 0x02 )
 229         if( nMaxDepth < 15 )
 230             return 0;
 231
 232     return nRetMask;
 233 }
 234
 235 // ---------------------------------------------------------------------------