diff options
| author | Tomaž Vajngerl <tomaz.vajngerl@collabora.co.uk> | 2015-09-28 12:51:02 +0200 |
|---|---|---|
| committer | Tomaž Vajngerl <tomaz.vajngerl@collabora.co.uk> | 2015-09-28 17:02:09 +0200 |
| commit | d76c5aa78f0b9004c6719dcc4d2be052c0703ba5 (patch) | |
| tree | 2f3c82ebe3fdd4c1ef72155f52154573eaf35055 /vcl | |
| parent | ac84e4ff6135d51461122e0e1b5b39614b3e6eca (diff) | |
don't allocate (by eraseing) an un-initialized 1x1 virtual device
Change-Id: I11c7063d7ac689866461ceabf8648f1c3c7bb17d
Diffstat (limited to 'vcl')
| -rw-r--r-- | vcl/source/gdi/virdev.cxx | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/vcl/source/gdi/virdev.cxx b/vcl/source/gdi/virdev.cxx index b8dc0613fda4..7319a1f056af 100644 --- a/vcl/source/gdi/virdev.cxx +++ b/vcl/source/gdi/virdev.cxx @@ -129,6 +129,8 @@ void VirtualDevice::ImplInitVirDev( const OutputDevice* pOutDev, { SAL_INFO( "vcl.virdev", "ImplInitVirDev(" << nDX << "," << nDY << "," << nBitCount << ")" ); + bool bErase = nDX > 0 && nDY > 0; + if ( nDX < 1 ) nDX = 1; @@ -191,7 +193,7 @@ void VirtualDevice::ImplInitVirDev( const OutputDevice* pOutDev, SetBackground( Wallpaper( Color( COL_WHITE ) ) ); // #i59283# don't erase user-provided surface - if( !pData ) + if( !pData && bErase) Erase(); // register VirDev in the list @@ -212,7 +214,7 @@ VirtualDevice::VirtualDevice( sal_uInt16 nBitCount ) "VirtualDevice::VirtualDevice(): Only 0, 1 or 8 allowed for BitCount, not " << nBitCount ); SAL_INFO( "vcl.gdi", "VirtualDevice::VirtualDevice( " << nBitCount << " )" ); - ImplInitVirDev( Application::GetDefaultDevice(), 1, 1, nBitCount ); + ImplInitVirDev( Application::GetDefaultDevice(), 0, 0, nBitCount ); } VirtualDevice::VirtualDevice( const OutputDevice& rCompDev, sal_uInt16 nBitCount ) @@ -223,7 +225,7 @@ VirtualDevice::VirtualDevice( const OutputDevice& rCompDev, sal_uInt16 nBitCount "VirtualDevice::VirtualDevice(): Only 0, 1 or 8 allowed for BitCount, not " << nBitCount ); SAL_INFO( "vcl.gdi", "VirtualDevice::VirtualDevice( " << nBitCount << " )" ); - ImplInitVirDev( &rCompDev, 1, 1, nBitCount ); + ImplInitVirDev( &rCompDev, 0, 0, nBitCount ); } VirtualDevice::VirtualDevice( const OutputDevice& rCompDev, sal_uInt16 nBitCount, sal_uInt16 nAlphaBitCount ) @@ -235,7 +237,7 @@ VirtualDevice::VirtualDevice( const OutputDevice& rCompDev, sal_uInt16 nBitCount SAL_INFO( "vcl.gdi", "VirtualDevice::VirtualDevice( " << nBitCount << ", " << nAlphaBitCount << " )" ); - ImplInitVirDev( &rCompDev, 1, 1, nBitCount ); + ImplInitVirDev( &rCompDev, 0, 0, nBitCount ); // Enable alpha channel mnAlphaDepth = sal::static_int_cast<sal_Int8>(nAlphaBitCount); |