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diff --git a/vcl/ios/source/gdi/salvd.cxx b/vcl/ios/source/gdi/salvd.cxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*************************************************************************
+ *
+ * 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.
+ *
+ ************************************************************************/
+
+// MARKER(update_precomp.py): autogen include statement, do not remove
+#include "precompiled_vcl.hxx"
+
+#include "vcl/svapp.hxx"
+#include "vcl/sysdata.hxx"
+
+#include "ios/salvd.h"
+#include "ios/salinst.h"
+#include "ios/salgdi.h"
+#include "ios/saldata.hxx"
+#include "ios/salframe.h"
+
+// -----------------------------------------------------------------------
+
+SalVirtualDevice* IosSalInstance::CreateVirtualDevice( SalGraphics* pGraphics,
+ long nDX, long nDY, sal_uInt16 nBitCount, const SystemGraphicsData *pData )
+{
+ // #i92075# can be called first in a thread
+ SalData::ensureThreadAutoreleasePool();
+
+ return new IosSalVirtualDevice( static_cast< IosSalGraphics* >( pGraphics ), nDX, nDY, nBitCount, pData );
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalInstance::DestroyVirtualDevice( SalVirtualDevice* pDevice )
+{
+ delete pDevice;
+}
+
+// =======================================================================
+
+IosSalVirtualDevice::IosSalVirtualDevice( IosSalGraphics* pGraphic, long nDX, long nDY, sal_uInt16 nBitCount, const SystemGraphicsData *pData )
+: mbGraphicsUsed( false )
+, mxBitmapContext( NULL )
+, mnBitmapDepth( 0 )
+, mxLayer( NULL )
+{
+ if( pGraphic && pData && pData->rCGContext )
+ {
+ // Create virtual device based on existing SystemGraphicsData
+ // We ignore nDx and nDY, as the desired size comes from the SystemGraphicsData
+ mbForeignContext = true; // the mxContext is from pData
+ mpGraphics = new IosSalGraphics( /*pGraphic*/ );
+ mpGraphics->SetVirDevGraphics( mxLayer, pData->rCGContext );
+ }
+ else
+ {
+ // create empty new virtual device
+ mbForeignContext = false; // the mxContext is created within VCL
+ mpGraphics = new IosSalGraphics(); // never fails
+ mnBitmapDepth = nBitCount;
+
+ // inherit resolution from reference device
+ if( pGraphic )
+ {
+ IosSalFrame* pFrame = pGraphic->getGraphicsFrame();
+ if( pFrame && IosSalFrame::isAlive( pFrame ) )
+ {
+ mpGraphics->setGraphicsFrame( pFrame );
+ mpGraphics->copyResolution( *pGraphic );
+ }
+ }
+
+ if( nDX && nDY )
+ SetSize( nDX, nDY );
+
+ // NOTE: if SetSize does not succeed, we just ignore the nDX and nDY
+ }
+}
+
+// -----------------------------------------------------------------------
+
+IosSalVirtualDevice::~IosSalVirtualDevice()
+{
+ if( mpGraphics )
+ {
+ mpGraphics->SetVirDevGraphics( NULL, NULL );
+ delete mpGraphics;
+ mpGraphics = 0;
+ }
+ Destroy();
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalVirtualDevice::Destroy()
+{
+ if( mbForeignContext ) {
+ // Do not delete mxContext that we have received from outside VCL
+ mxLayer = NULL;
+ return;
+ }
+
+ if( mxLayer )
+ {
+ if( mpGraphics )
+ mpGraphics->SetVirDevGraphics( NULL, NULL );
+ CGLayerRelease( mxLayer );
+ mxLayer = NULL;
+ }
+
+ if( mxBitmapContext )
+ {
+ void* pRawData = CGBitmapContextGetData( mxBitmapContext );
+ rtl_freeMemory( pRawData );
+ CGContextRelease( mxBitmapContext );
+ mxBitmapContext = NULL;
+ }
+}
+
+// -----------------------------------------------------------------------
+
+SalGraphics* IosSalVirtualDevice::GetGraphics()
+{
+ if( mbGraphicsUsed || !mpGraphics )
+ return 0;
+
+ mbGraphicsUsed = true;
+ return mpGraphics;
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalVirtualDevice::ReleaseGraphics( SalGraphics* )
+{
+ mbGraphicsUsed = false;
+}
+
+// -----------------------------------------------------------------------
+
+sal_Bool IosSalVirtualDevice::SetSize( long nDX, long nDY )
+{
+ if( mbForeignContext )
+ {
+ // Do not delete/resize mxContext that we have received from outside VCL
+ return true;
+ }
+
+ if( mxLayer )
+ {
+ const CGSize aSize = CGLayerGetSize( mxLayer );
+ if( (nDX == aSize.width) && (nDY == aSize.height) )
+ {
+ // Yay, we do not have to do anything :)
+ return true;
+ }
+ }
+
+ Destroy();
+
+ // create a Quartz layer matching to the intended virdev usage
+ CGContextRef xCGContext = NULL;
+ if( mnBitmapDepth && (mnBitmapDepth < 16) )
+ {
+ mnBitmapDepth = 8; // TODO: are 1bit vdevs worth it?
+ const CGColorSpaceRef aCGColorSpace = GetSalData()->mxGraySpace;
+ const CGBitmapInfo aCGBmpInfo = kCGImageAlphaNone;
+ const int nBytesPerRow = (mnBitmapDepth * nDX + 7) / 8;
+
+ void* pRawData = rtl_allocateMemory( nBytesPerRow * nDY );
+ mxBitmapContext = ::CGBitmapContextCreate( pRawData, nDX, nDY,
+ mnBitmapDepth, nBytesPerRow, aCGColorSpace, aCGBmpInfo );
+ xCGContext = mxBitmapContext;
+ }
+ else
+ {
+ // default to a UIView target context
+ IosSalFrame* pSalFrame = mpGraphics->getGraphicsFrame();
+ if( !pSalFrame && !GetSalData()->maFrames.empty() )
+ pSalFrame = *GetSalData()->maFrames.begin();
+ if( pSalFrame )
+ {
+#if 0 // No idea...
+ // #i91990#
+ UIWindow* pWindow = pSalFrame->getWindow();
+ if ( pWindow )
+ {
+ UIGraphicsContext* pUIContext = [UIGraphicsContext graphicsContextWithWindow: pWindow];
+ if( pUIContext )
+ xCGContext = reinterpret_cast<CGContextRef>([pUIContext graphicsPort]);
+ }
+ else
+#endif
+ {
+ // fall back to a bitmap context
+ mnBitmapDepth = 32;
+ const CGColorSpaceRef aCGColorSpace = GetSalData()->mxRGBSpace;
+ const CGBitmapInfo aCGBmpInfo = kCGImageAlphaNoneSkipFirst;
+ const int nBytesPerRow = (mnBitmapDepth * nDX) / 8;
+
+ void* pRawData = rtl_allocateMemory( nBytesPerRow * nDY );
+ mxBitmapContext = ::CGBitmapContextCreate( pRawData, nDX, nDY,
+ 8, nBytesPerRow, aCGColorSpace, aCGBmpInfo );
+ xCGContext = mxBitmapContext;
+ }
+ }
+ }
+
+ DBG_ASSERT( xCGContext, "no context" );
+
+ const CGSize aNewSize = { nDX, nDY };
+ mxLayer = CGLayerCreateWithContext( xCGContext, aNewSize, NULL );
+
+ if( mxLayer && mpGraphics )
+ {
+ // get the matching Quartz context
+ CGContextRef xDrawContext = CGLayerGetContext( mxLayer );
+ mpGraphics->SetVirDevGraphics( mxLayer, xDrawContext, mnBitmapDepth );
+ }
+
+ return (mxLayer != NULL);
+}
+
+// -----------------------------------------------------------------------
+
+void IosSalVirtualDevice::GetSize( long& rWidth, long& rHeight )
+{
+ if( mxLayer )
+ {
+ const CGSize aSize = CGLayerGetSize( mxLayer );
+ rWidth = static_cast<long>(aSize.width);
+ rHeight = static_cast<long>(aSize.height);
+ }
+ else
+ {
+ rWidth = 0;
+ rHeight = 0;
+ }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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