Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

40 files changed, 7683 insertions, 0 deletions

diff --git a/canvas/source/vcl/backbuffer.cxx b/canvas/source/vcl/backbuffer.cxx
new file mode 100644
index 000000000..684a02c8b
--- /dev/null
+++ b/canvas/source/vcl/backbuffer.cxx
@@ -0,0 +1,59 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <vcl/svapp.hxx>
+
+#include "backbuffer.hxx"
+#include "impltools.hxx"
+
+
+namespace vclcanvas
+{
+    BackBuffer::BackBuffer( const OutputDevice& rRefDevice ) :
+        maVDev( VclPtr<VirtualDevice>::Create( rRefDevice, DeviceFormat::DEFAULT ) )
+    {
+        tools::SetDefaultDeviceAntiAliasing( maVDev );
+    }
+
+    BackBuffer::~BackBuffer()
+    {
+        SolarMutexGuard aGuard;
+        maVDev.disposeAndClear();
+    }
+
+    OutputDevice& BackBuffer::getOutDev()
+    {
+        return *maVDev;
+    }
+
+    const OutputDevice& BackBuffer::getOutDev() const
+    {
+        return *maVDev;
+    }
+
+    void BackBuffer::setSize( const ::Size& rNewSize )
+    {
+        maVDev->SetOutputSizePixel( rNewSize );
+    }
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/backbuffer.hxx b/canvas/source/vcl/backbuffer.hxx
new file mode 100644
index 000000000..0e31111b6
--- /dev/null
+++ b/canvas/source/vcl/backbuffer.hxx
@@ -0,0 +1,50 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <vcl/virdev.hxx>
+
+#include "outdevprovider.hxx"
+
+#include <memory>
+
+namespace vclcanvas
+{
+    /// Background buffer abstraction
+    class BackBuffer : public OutDevProvider
+    {
+    public:
+        /** Create a backbuffer for given reference device */
+        BackBuffer( const OutputDevice& rRefDevice );
+        virtual ~BackBuffer() override;
+
+        virtual OutputDevice&       getOutDev() override;
+        virtual const OutputDevice& getOutDev() const override;
+
+        void setSize( const ::Size& rNewSize );
+
+    private:
+        VclPtr< VirtualDevice > maVDev;
+    };
+
+    typedef std::shared_ptr< BackBuffer > BackBufferSharedPtr;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/bitmapbackbuffer.cxx b/canvas/source/vcl/bitmapbackbuffer.cxx
new file mode 100644
index 000000000..d6f87e3c0
--- /dev/null
+++ b/canvas/source/vcl/bitmapbackbuffer.cxx
@@ -0,0 +1,147 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <osl/diagnose.h>
+#include <vcl/bitmapex.hxx>
+#include <vcl/svapp.hxx>
+
+#include "bitmapbackbuffer.hxx"
+#include "impltools.hxx"
+
+namespace vclcanvas
+{
+    BitmapBackBuffer::BitmapBackBuffer( const BitmapEx&         rBitmap,
+                                        const OutputDevice&     rRefDevice ) :
+        maBitmap( rBitmap ),
+        mpVDev( nullptr ),
+        mrRefDevice( rRefDevice ),
+        mbBitmapContentIsCurrent( false ),
+        mbVDevContentIsCurrent( false )
+    {
+    }
+
+    BitmapBackBuffer::~BitmapBackBuffer()
+    {
+        // make sure solar mutex is held on deletion (other methods
+        // are supposed to be called with already locked solar mutex)
+        SolarMutexGuard aGuard;
+
+        mpVDev.disposeAndClear();
+    }
+
+    OutputDevice& BitmapBackBuffer::getOutDev()
+    {
+        createVDev();
+        updateVDev();
+        return *mpVDev;
+    }
+
+    const OutputDevice& BitmapBackBuffer::getOutDev() const
+    {
+        createVDev();
+        updateVDev();
+        return *mpVDev;
+    }
+
+    void BitmapBackBuffer::clear()
+    {
+        // force current content to bitmap, make all transparent white
+        getBitmapReference().Erase(COL_TRANSPARENT);
+    }
+
+    BitmapEx& BitmapBackBuffer::getBitmapReference()
+    {
+        OSL_ENSURE( !mbBitmapContentIsCurrent || !mbVDevContentIsCurrent,
+                    "BitmapBackBuffer::getBitmapReference(): Both bitmap and VDev are valid?!" );
+
+        if( mbVDevContentIsCurrent && mpVDev )
+        {
+            // VDev content is more current than bitmap - copy contents before!
+            mpVDev->EnableMapMode( false );
+            mpVDev->SetAntialiasing( AntialiasingFlags::Enable );
+            const Point aEmptyPoint;
+            *maBitmap = mpVDev->GetBitmapEx( aEmptyPoint,
+                                             mpVDev->GetOutputSizePixel() );
+        }
+
+        // client queries bitmap, and will possibly alter content -
+        // next time, VDev needs to be updated
+        mbBitmapContentIsCurrent = true;
+        mbVDevContentIsCurrent   = false;
+
+        return *maBitmap;
+    }
+
+    Size BitmapBackBuffer::getBitmapSizePixel() const
+    {
+        Size aSize = maBitmap->GetSizePixel();
+
+        if( mbVDevContentIsCurrent && mpVDev )
+        {
+            mpVDev->EnableMapMode( false );
+            mpVDev->SetAntialiasing( AntialiasingFlags::Enable );
+            aSize = mpVDev->GetOutputSizePixel();
+        }
+
+        return aSize;
+    }
+
+    void BitmapBackBuffer::createVDev() const
+    {
+        if( mpVDev )
+            return;
+
+        // VDev not yet created, do it now. Create an alpha-VDev,
+        // if bitmap has transparency.
+        mpVDev = maBitmap->IsAlpha() ?
+            VclPtr<VirtualDevice>::Create( mrRefDevice, DeviceFormat::DEFAULT, DeviceFormat::DEFAULT ) :
+            VclPtr<VirtualDevice>::Create( mrRefDevice );
+
+        OSL_ENSURE( mpVDev,
+                    "BitmapBackBuffer::createVDev(): Unable to create VirtualDevice" );
+
+        mpVDev->SetOutputSizePixel( maBitmap->GetSizePixel() );
+
+        tools::SetDefaultDeviceAntiAliasing( mpVDev );
+    }
+
+    void BitmapBackBuffer::updateVDev() const
+    {
+        OSL_ENSURE( !mbBitmapContentIsCurrent || !mbVDevContentIsCurrent,
+                    "BitmapBackBuffer::updateVDev(): Both bitmap and VDev are valid?!" );
+
+        if( mpVDev && mbBitmapContentIsCurrent )
+        {
+            // fill with bitmap content
+            mpVDev->EnableMapMode( false );
+            mpVDev->SetAntialiasing( AntialiasingFlags::Enable );
+            const Point aEmptyPoint;
+            mpVDev->DrawBitmapEx( aEmptyPoint, *maBitmap );
+        }
+
+        // canvas queried the VDev, and will possibly paint into
+        // it. Next time, bitmap must be updated
+        mbBitmapContentIsCurrent = false;
+        mbVDevContentIsCurrent   = true;
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/bitmapbackbuffer.hxx b/canvas/source/vcl/bitmapbackbuffer.hxx
new file mode 100644
index 000000000..9098e7e93
--- /dev/null
+++ b/canvas/source/vcl/bitmapbackbuffer.hxx
@@ -0,0 +1,93 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <vcl/virdev.hxx>
+#include <vcl/bitmapex.hxx>
+
+#include <vclwrapper.hxx>
+#include "outdevprovider.hxx"
+
+#include <memory>
+
+namespace vclcanvas
+{
+    /** Backbuffer implementation for canvas bitmap.
+
+        This class abstracts away the renderable bitmap for the bitmap
+        canvas. The actual VirtualDevice is only created when
+        necessary, which makes read-only bitmaps a lot smaller.
+    */
+    class BitmapBackBuffer : public OutDevProvider
+    {
+    public:
+        /** Create a backbuffer for given reference device
+         */
+        BitmapBackBuffer( const BitmapEx&       rBitmap,
+                          const OutputDevice&   rRefDevice );
+
+        virtual ~BitmapBackBuffer() override;
+
+        virtual OutputDevice&       getOutDev() override;
+        virtual const OutputDevice& getOutDev() const override;
+
+        /// Clear the underlying bitmap to white, all transparent
+        void clear();
+
+        /** Exposing our internal bitmap. Only to be used from
+            CanvasBitmapHelper
+
+            @internal
+        */
+        BitmapEx&                   getBitmapReference();
+        Size                        getBitmapSizePixel() const;
+
+    private:
+        void createVDev() const;
+        void updateVDev() const;
+
+        ::canvas::vcltools::VCLObject<BitmapEx> maBitmap;
+        mutable VclPtr<VirtualDevice>           mpVDev; // created only on demand
+
+        const OutputDevice&                     mrRefDevice;
+
+        /** When true, the bitmap contains the last valid
+            content. When false, and mbVDevContentIsCurrent is true,
+            the VDev contains the last valid content (which must be
+            copied back to the bitmap, when getBitmapReference() is
+            called). When both are false, this object is just
+            initialized.
+         */
+        mutable bool                            mbBitmapContentIsCurrent;
+
+        /** When true, and mpVDev is non-NULL, the VDev contains the
+            last valid content. When false, and
+            mbBitmapContentIsCurrent is true, the bitmap contains the
+            last valid content. When both are false, this object is
+            just initialized.
+         */
+        mutable bool                            mbVDevContentIsCurrent;
+    };
+
+    typedef std::shared_ptr< BitmapBackBuffer > BitmapBackBufferSharedPtr;
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/cachedbitmap.cxx b/canvas/source/vcl/cachedbitmap.cxx
new file mode 100644
index 000000000..2d44133a7
--- /dev/null
+++ b/canvas/source/vcl/cachedbitmap.cxx
@@ -0,0 +1,93 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <com/sun/star/rendering/XCanvas.hpp>
+#include <com/sun/star/rendering/RepaintResult.hpp>
+#include <utility>
+#include <tools/diagnose_ex.h>
+
+#include "cachedbitmap.hxx"
+#include "repainttarget.hxx"
+
+
+using namespace ::com::sun::star;
+
+namespace vclcanvas
+{
+    CachedBitmap::CachedBitmap( GraphicObjectSharedPtr                      xGraphicObject,
+                                const ::Point&                              rPoint,
+                                const ::Size&                               rSize,
+                                const GraphicAttr&                          rAttr,
+                                const rendering::ViewState&                 rUsedViewState,
+                                rendering::RenderState                      aUsedRenderState,
+                                const uno::Reference< rendering::XCanvas >& rTarget ) :
+        CachedPrimitiveBase( rUsedViewState, rTarget ),
+        mpGraphicObject(std::move( xGraphicObject )),
+        maRenderState(std::move(aUsedRenderState)),
+        maPoint( rPoint ),
+        maSize( rSize ),
+        maAttributes( rAttr )
+    {
+    }
+
+    void SAL_CALL CachedBitmap::disposing()
+    {
+        ::osl::MutexGuard aGuard( m_aMutex );
+
+        mpGraphicObject.reset();
+
+        CachedPrimitiveBase::disposing();
+    }
+
+    ::sal_Int8 CachedBitmap::doRedraw( const rendering::ViewState&                  rNewState,
+                                       const rendering::ViewState&                  rOldState,
+                                       const uno::Reference< rendering::XCanvas >&  rTargetCanvas,
+                                       bool                                         bSameViewTransform )
+    {
+        ENSURE_OR_THROW( bSameViewTransform,
+                         "CachedBitmap::doRedraw(): base called with changed view transform "
+                         "(told otherwise during construction)" );
+
+        // TODO(P1): Could adapt to modified clips as well
+        if( rNewState.Clip != rOldState.Clip )
+            return rendering::RepaintResult::FAILED;
+
+        RepaintTarget* pTarget = dynamic_cast< RepaintTarget* >(rTargetCanvas.get());
+
+        ENSURE_OR_THROW( pTarget,
+                          "CachedBitmap::redraw(): cannot cast target to RepaintTarget" );
+
+        if( !pTarget->repaint( mpGraphicObject,
+                               rNewState,
+                               maRenderState,
+                               maPoint,
+                               maSize,
+                               maAttributes ) )
+        {
+            // target failed to repaint
+            return rendering::RepaintResult::FAILED;
+        }
+
+        return rendering::RepaintResult::REDRAWN;
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/cachedbitmap.hxx b/canvas/source/vcl/cachedbitmap.hxx
new file mode 100644
index 000000000..0ef04654d
--- /dev/null
+++ b/canvas/source/vcl/cachedbitmap.hxx
@@ -0,0 +1,66 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <com/sun/star/rendering/RenderState.hpp>
+#include <base/cachedprimitivebase.hxx>
+#include <vcl/GraphicObject.hxx>
+#include <memory>
+
+
+/* Definition of CachedBitmap class */
+
+namespace vclcanvas
+{
+    typedef std::shared_ptr< GraphicObject > GraphicObjectSharedPtr;
+
+    class CachedBitmap : public ::canvas::CachedPrimitiveBase
+    {
+    public:
+
+        /** Create an XCachedPrimitive for given GraphicObject
+         */
+        CachedBitmap( GraphicObjectSharedPtr                          xGraphicObject,
+                      const ::Point&                                  rPoint,
+                      const ::Size&                                   rSize,
+                      const GraphicAttr&                              rAttr,
+                      const css::rendering::ViewState&                rUsedViewState,
+                      css::rendering::RenderState                     aUsedRenderState,
+                      const css::uno::Reference< css::rendering::XCanvas >&   rTarget );
+
+        /// Dispose all internal references
+        virtual void SAL_CALL disposing() override;
+
+    private:
+        virtual ::sal_Int8 doRedraw( const css::rendering::ViewState&  rNewState,
+                                     const css::rendering::ViewState&  rOldState,
+                                     const css::uno::Reference< css::rendering::XCanvas >&    rTargetCanvas,
+                                     bool                              bSameViewTransform ) override;
+
+
+        GraphicObjectSharedPtr                                         mpGraphicObject;
+        const css::rendering::RenderState                              maRenderState;
+        const ::Point                                                  maPoint;
+        const ::Size                                                   maSize;
+        const GraphicAttr                                              maAttributes;
+    };
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/canvas.cxx b/canvas/source/vcl/canvas.cxx
new file mode 100644
index 000000000..e9ebf85b3
--- /dev/null
+++ b/canvas/source/vcl/canvas.cxx
@@ -0,0 +1,122 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include "canvas.hxx"
+
+#include <com/sun/star/lang/NoSupportException.hpp>
+#include <sal/log.hxx>
+#include <tools/diagnose_ex.h>
+#include <vcl/outdev.hxx>
+
+#include "outdevholder.hxx"
+
+using namespace ::com::sun::star;
+
+namespace vclcanvas
+{
+    Canvas::Canvas( const uno::Sequence< uno::Any >&                aArguments,
+                    const uno::Reference< uno::XComponentContext >& /*rxContext*/ ) :
+        maArguments(aArguments)
+    {
+    }
+
+    void Canvas::initialize()
+    {
+        // #i64742# Only perform initialization when not in probe mode
+        if( !maArguments.hasElements() )
+            return;
+
+        /* maArguments:
+           0: ptr to creating instance (Window or VirtualDevice)
+           1: current bounds of creating instance
+           2: bool, denoting always on top state for Window (always false for VirtualDevice)
+           3: XWindow for creating Window (or empty for VirtualDevice)
+           4: SystemGraphicsData as a streamed Any
+         */
+        SolarMutexGuard aGuard;
+
+        SAL_INFO("canvas.vcl", "VCLCanvas::initialize called" );
+
+        ENSURE_ARG_OR_THROW( maArguments.getLength() >= 5 &&
+                             maArguments[0].getValueTypeClass() == uno::TypeClass_HYPER,
+                             "Canvas::initialize: wrong number of arguments, or wrong types" );
+
+        sal_Int64 nPtr = 0;
+        maArguments[0] >>= nPtr;
+
+        OutputDevice* pOutDev = reinterpret_cast<OutputDevice*>(nPtr);
+        if( !pOutDev )
+            throw lang::NoSupportException("Passed OutDev invalid!", nullptr);
+
+        OutDevProviderSharedPtr pOutdevProvider = std::make_shared<OutDevHolder>(*pOutDev);
+
+        // setup helper
+        maDeviceHelper.init( pOutdevProvider );
+        maCanvasHelper.init( *this,
+                             pOutdevProvider,
+                             true,   // OutDev state preservation
+                             false ); // no alpha on surface
+
+        maArguments.realloc(0);
+    }
+
+    Canvas::~Canvas()
+    {
+        SAL_INFO("canvas.vcl", "VCLCanvas destroyed" );
+    }
+
+    void Canvas::disposeThis()
+    {
+        SolarMutexGuard aGuard;
+
+        // forward to parent
+        CanvasBaseT::disposeThis();
+    }
+
+    OUString SAL_CALL Canvas::getServiceName(  )
+    {
+        return "com.sun.star.rendering.Canvas.VCL";
+    }
+
+    bool Canvas::repaint( const GraphicObjectSharedPtr& rGrf,
+                          const rendering::ViewState&   viewState,
+                          const rendering::RenderState& renderState,
+                          const ::Point&                rPt,
+                          const ::Size&                 rSz,
+                          const GraphicAttr&            rAttr ) const
+    {
+        SolarMutexGuard aGuard;
+
+        return maCanvasHelper.repaint( rGrf, viewState, renderState, rPt, rSz, rAttr );
+    }
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+com_sun_star_comp_rendering_Canvas_VCL_get_implementation(
+    css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const& args)
+{
+    rtl::Reference<vclcanvas::Canvas> p = new vclcanvas::Canvas(args, context);
+    cppu::acquire(p.get());
+    p->initialize();
+    return static_cast<cppu::OWeakObject*>(p.get());
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/canvas.hxx b/canvas/source/vcl/canvas.hxx
new file mode 100644
index 000000000..be7d7858e
--- /dev/null
+++ b/canvas/source/vcl/canvas.hxx
@@ -0,0 +1,112 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <com/sun/star/uno/XComponentContext.hpp>
+#include <com/sun/star/beans/XPropertySet.hpp>
+#include <com/sun/star/lang/XServiceName.hpp>
+#include <com/sun/star/util/XUpdatable.hpp>
+#include <com/sun/star/rendering/XBitmapCanvas.hpp>
+#include <com/sun/star/rendering/XIntegerBitmap.hpp>
+#include <com/sun/star/rendering/XGraphicDevice.hpp>
+
+#include <cppuhelper/compbase.hxx>
+#include <comphelper/uno3.hxx>
+
+#include <base/basemutexhelper.hxx>
+#include <base/bitmapcanvasbase.hxx>
+#include <base/integerbitmapbase.hxx>
+#include <base/graphicdevicebase.hxx>
+
+#include "canvashelper.hxx"
+#include "impltools.hxx"
+#include "devicehelper.hxx"
+#include "repainttarget.hxx"
+
+namespace vclcanvas
+{
+    typedef ::cppu::WeakComponentImplHelper< css::rendering::XBitmapCanvas,
+                                             css::rendering::XIntegerBitmap,
+                                             css::rendering::XGraphicDevice,
+                                             css::lang::XMultiServiceFactory,
+                                             css::util::XUpdatable,
+                                             css::beans::XPropertySet,
+                                             css::lang::XServiceName >    GraphicDeviceBase_Base;
+    typedef ::canvas::GraphicDeviceBase< ::canvas::BaseMutexHelper< GraphicDeviceBase_Base >,
+                                           DeviceHelper,
+                                           tools::LocalGuard,
+                                           ::cppu::OWeakObject >    CanvasBase_Base;
+    typedef ::canvas::IntegerBitmapBase<
+        canvas::BitmapCanvasBase2<
+            CanvasBase_Base,
+            CanvasHelper,
+            tools::LocalGuard,
+            ::cppu::OWeakObject> > CanvasBaseT;
+
+    /** Product of this component's factory.
+
+        The Canvas object combines the actual Window canvas with
+        the XGraphicDevice interface. This is because there's a
+        one-to-one relation between them, anyway, since each window
+        can have exactly one canvas and one associated
+        XGraphicDevice. And to avoid messing around with circular
+        references, this is implemented as one single object.
+     */
+    class Canvas : public CanvasBaseT,
+                   public RepaintTarget
+    {
+    public:
+        Canvas( const css::uno::Sequence<
+                      css::uno::Any >&               aArguments,
+                const css::uno::Reference<
+                      css::uno::XComponentContext >& rxContext );
+
+        void initialize();
+
+        /// For resource tracking
+        virtual ~Canvas() override;
+
+        /// Dispose all internal references
+        virtual void disposeThis() override;
+
+        // Forwarding the XComponent implementation to the
+        // cppu::ImplHelper templated base
+        //                                    Classname     Base doing refcounting        Base implementing the XComponent interface
+        //                                       |                 |                            |
+        //                                       V                 V                            V
+        DECLARE_UNO3_XCOMPONENT_AGG_DEFAULTS( Canvas,   GraphicDeviceBase_Base, ::cppu::WeakComponentImplHelperBase )
+
+        // XServiceName
+        virtual OUString SAL_CALL getServiceName(  ) override;
+
+        // RepaintTarget
+        virtual bool repaint( const GraphicObjectSharedPtr&                 rGrf,
+                              const css::rendering::ViewState&              viewState,
+                              const css::rendering::RenderState&            renderState,
+                              const ::Point&                                rPt,
+                              const ::Size&                                 rSz,
+                              const GraphicAttr&                            rAttr ) const override;
+
+    private:
+        css::uno::Sequence< css::uno::Any >                maArguments;
+    };
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/canvasbitmap.cxx b/canvas/source/vcl/canvasbitmap.cxx
new file mode 100644
index 000000000..9ae37c2c4
--- /dev/null
+++ b/canvas/source/vcl/canvasbitmap.cxx
@@ -0,0 +1,122 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <cppuhelper/supportsservice.hxx>
+
+#include "canvasbitmap.hxx"
+
+
+using namespace ::com::sun::star;
+
+
+namespace vclcanvas
+{
+    // Currently, the only way to generate an XBitmap is from
+    // XGraphicDevice.getCompatibleBitmap(). Therefore, we don't even
+    // take a bitmap here, but a VDev directly.
+    CanvasBitmap::CanvasBitmap( const ::Size&                  rSize,
+                                bool                           bAlphaBitmap,
+                                rendering::XGraphicDevice&     rDevice,
+                                const OutDevProviderSharedPtr& rOutDevProvider )
+    {
+        // create bitmap for given reference device
+        // ========================================
+        Bitmap aBitmap(rSize, vcl::PixelFormat::N24_BPP);
+
+        // only create alpha channel bitmap, if factory requested
+        // that. Providing alpha-channeled bitmaps by default has,
+        // especially under VCL, a huge performance penalty (have to
+        // use alpha VDev, then).
+        if( bAlphaBitmap )
+        {
+            AlphaMask   aAlpha ( rSize );
+
+            maCanvasHelper.init( BitmapEx( aBitmap, aAlpha ),
+                                 rDevice,
+                                 rOutDevProvider );
+        }
+        else
+        {
+            maCanvasHelper.init( BitmapEx( aBitmap ),
+                                 rDevice,
+                                 rOutDevProvider );
+        }
+    }
+
+    CanvasBitmap::CanvasBitmap( const BitmapEx&                rBitmap,
+                                rendering::XGraphicDevice&     rDevice,
+                                const OutDevProviderSharedPtr& rOutDevProvider )
+    {
+        maCanvasHelper.init( rBitmap, rDevice, rOutDevProvider );
+    }
+
+
+    OUString SAL_CALL CanvasBitmap::getImplementationName(  )
+    {
+        return "VCLCanvas.CanvasBitmap";
+    }
+
+    sal_Bool SAL_CALL CanvasBitmap::supportsService( const OUString& ServiceName )
+    {
+        return cppu::supportsService( this, ServiceName );
+    }
+
+    uno::Sequence< OUString > SAL_CALL CanvasBitmap::getSupportedServiceNames(  )
+    {
+        return { "com.sun.star.rendering.CanvasBitmap" };
+    }
+
+    BitmapEx CanvasBitmap::getBitmap() const
+    {
+        SolarMutexGuard aGuard;
+
+        // TODO(T3): Rework to use shared_ptr all over the place for
+        // BmpEx. This is highly un-threadsafe
+        return maCanvasHelper.getBitmap();
+    }
+
+    bool CanvasBitmap::repaint( const GraphicObjectSharedPtr& rGrf,
+                                const rendering::ViewState&   viewState,
+                                const rendering::RenderState& renderState,
+                                const ::Point&                rPt,
+                                const ::Size&                 rSz,
+                                const GraphicAttr&            rAttr ) const
+    {
+        SolarMutexGuard aGuard;
+
+        mbSurfaceDirty = true;
+
+        return maCanvasHelper.repaint( rGrf, viewState, renderState, rPt, rSz, rAttr );
+    }
+
+    uno::Any SAL_CALL CanvasBitmap::getFastPropertyValue( sal_Int32 nHandle )
+    {
+        if( nHandle == 0 ) {
+            BitmapEx* pBitmapEx = new BitmapEx( getBitmap() );
+
+            return uno::Any( reinterpret_cast<sal_Int64>( pBitmapEx ) );
+        }
+
+        return uno::Any( sal_Int64(0) );
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/canvasbitmap.hxx b/canvas/source/vcl/canvasbitmap.hxx
new file mode 100644
index 000000000..1a95ce8c6
--- /dev/null
+++ b/canvas/source/vcl/canvasbitmap.hxx
@@ -0,0 +1,117 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <cppuhelper/compbase.hxx>
+
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/rendering/XBitmapCanvas.hpp>
+#include <com/sun/star/rendering/XIntegerBitmap.hpp>
+#include <com/sun/star/beans/XFastPropertySet.hpp>
+
+#include <vcl/bitmapex.hxx>
+
+#include <base/bitmapcanvasbase.hxx>
+#include <base/basemutexhelper.hxx>
+#include <base/integerbitmapbase.hxx>
+#include "canvasbitmaphelper.hxx"
+
+#include "impltools.hxx"
+#include "repainttarget.hxx"
+
+
+/* Definition of CanvasBitmap class */
+
+namespace vclcanvas
+{
+    typedef ::cppu::WeakComponentImplHelper< css::rendering::XBitmapCanvas,
+                                             css::rendering::XIntegerBitmap,
+                                             css::lang::XServiceInfo,
+                                             css::beans::XFastPropertySet >    CanvasBitmapBase_Base;
+    typedef ::canvas::IntegerBitmapBase<
+        canvas::BitmapCanvasBase2<
+            ::canvas::BaseMutexHelper< CanvasBitmapBase_Base >,
+            CanvasBitmapHelper,
+            tools::LocalGuard,
+            ::cppu::OWeakObject> > CanvasBitmap_Base;
+
+    class CanvasBitmap : public CanvasBitmap_Base,
+                         public RepaintTarget
+    {
+    public:
+        /** Must be called with locked Solar mutex
+
+            @param rSize
+            Size in pixel of the bitmap to generate
+
+            @param bAlphaBitmap
+            When true, bitmap will have an alpha channel
+
+            @param rDevice
+            Reference device, with which bitmap should be compatible
+         */
+        CanvasBitmap( const ::Size&                                rSize,
+                      bool                                         bAlphaBitmap,
+                      css::rendering::XGraphicDevice&              rDevice,
+                      const OutDevProviderSharedPtr&               rOutDevProvider );
+
+        /// Must be called with locked Solar mutex
+        CanvasBitmap( const BitmapEx&                              rBitmap,
+                      css::rendering::XGraphicDevice&              rDevice,
+                      const OutDevProviderSharedPtr&               rOutDevProvider );
+
+        // XServiceInfo
+        virtual OUString SAL_CALL getImplementationName(  ) override;
+        virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
+        virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames(  ) override;
+
+        // RepaintTarget interface
+        virtual bool repaint( const GraphicObjectSharedPtr&                   rGrf,
+                              const css::rendering::ViewState&   viewState,
+                              const css::rendering::RenderState& renderState,
+                              const ::Point&                                  rPt,
+                              const ::Size&                                   rSz,
+                              const GraphicAttr&                              rAttr ) const override;
+
+        /// Not threadsafe! Returned object is shared!
+        BitmapEx getBitmap() const;
+
+        // XFastPropertySet
+        // used to retrieve BitmapEx pointer or X Pixmap handles for this bitmap
+        // handle values have these meanings:
+        // 0 ... get pointer to BitmapEx
+        // 1 ... get X pixmap handle to rgb content
+        // 2 ... get X pixmap handle to alpha mask
+        // returned any contains either BitmapEx pointer or array of three Any value
+        //     1st a bool value: true - free the pixmap after used by XFreePixmap, false do nothing, the pixmap is used internally in the canvas
+        //     2nd the pixmap handle (sal_Int64)
+        //     3rd the pixmap depth
+        virtual css::uno::Any SAL_CALL getFastPropertyValue(sal_Int32 nHandle) override;
+        virtual void SAL_CALL setFastPropertyValue(sal_Int32, const css::uno::Any&) override {}
+
+    private:
+        /** MUST hold here, too, since CanvasHelper only contains a
+            raw pointer (without refcounting)
+        */
+        css::uno::Reference<css::rendering::XGraphicDevice> mxDevice;
+    };
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/canvasbitmaphelper.cxx b/canvas/source/vcl/canvasbitmaphelper.cxx
new file mode 100644
index 000000000..85b886d70
--- /dev/null
+++ b/canvas/source/vcl/canvasbitmaphelper.cxx
@@ -0,0 +1,176 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+#include <sal/log.hxx>
+
+#include <canvas/canvastools.hxx>
+#include <tools/diagnose_ex.h>
+#include <vcl/bitmapex.hxx>
+#include <vcl/BitmapTools.hxx>
+#include <vcl/canvastools.hxx>
+
+#include "canvasbitmap.hxx"
+#include "canvasbitmaphelper.hxx"
+
+
+using namespace ::com::sun::star;
+
+namespace vclcanvas
+{
+    CanvasBitmapHelper::CanvasBitmapHelper()
+    {
+    }
+
+    void CanvasBitmapHelper::init( const BitmapEx&                rBitmap,
+                                   rendering::XGraphicDevice&     rDevice,
+                                   const OutDevProviderSharedPtr& rOutDevReference )
+    {
+        mpOutDevReference = rOutDevReference;
+        mpBackBuffer = std::make_shared<BitmapBackBuffer>( rBitmap, rOutDevReference->getOutDev() );
+
+        // forward new settings to base class (ref device, output
+        // surface, no protection (own backbuffer), alpha depends on
+        // whether BmpEx is transparent or not)
+        CanvasHelper::init( rDevice,
+                            mpBackBuffer,
+                            false,
+                            rBitmap.IsAlpha() );
+    }
+
+    void CanvasBitmapHelper::disposing()
+    {
+        mpBackBuffer.reset();
+        mpOutDevReference.reset();
+
+        // forward to base class
+        CanvasHelper::disposing();
+    }
+
+    geometry::IntegerSize2D CanvasBitmapHelper::getSize() const
+    {
+        if( !mpBackBuffer )
+            return geometry::IntegerSize2D();
+
+        return vcl::unotools::integerSize2DFromSize( mpBackBuffer->getBitmapSizePixel() );
+    }
+
+    void CanvasBitmapHelper::clear()
+    {
+        // are we disposed?
+        if( mpBackBuffer )
+            mpBackBuffer->clear(); // alpha vdev needs special treatment
+    }
+
+    uno::Reference< rendering::XBitmap > CanvasBitmapHelper::getScaledBitmap( const geometry::RealSize2D&   newSize,
+                                                                              bool                          beFast )
+    {
+        ENSURE_OR_THROW( mpDevice,
+                          "disposed CanvasHelper" );
+
+        SAL_INFO( "canvas.vcl", "::vclcanvas::CanvasBitmapHelper::getScaledBitmap()" );
+
+        if( !mpBackBuffer || mpDevice )
+            return uno::Reference< rendering::XBitmap >(); // we're disposed
+
+        BitmapEx aRes( mpBackBuffer->getBitmapReference() );
+
+        aRes.Scale( vcl::unotools::sizeFromRealSize2D(newSize),
+                     beFast ? BmpScaleFlag::Default : BmpScaleFlag::BestQuality );
+
+        return uno::Reference< rendering::XBitmap >(
+            new CanvasBitmap( aRes, *mpDevice, mpOutDevReference ) );
+    }
+
+    uno::Sequence< sal_Int8 > CanvasBitmapHelper::getData( rendering::IntegerBitmapLayout&      rLayout,
+                                                           const geometry::IntegerRectangle2D&  rect )
+    {
+        SAL_INFO( "canvas.vcl", "::vclcanvas::CanvasBitmapHelper::getData()" );
+
+        if( !mpBackBuffer )
+            return uno::Sequence< sal_Int8 >(); // we're disposed
+
+        rLayout = getMemoryLayout();
+
+        // TODO(F1): Support more formats.
+        const Size aBmpSize( mpBackBuffer->getBitmapReference().GetSizePixel() );
+
+        rLayout.ScanLines = aBmpSize.Height();
+        rLayout.ScanLineBytes = aBmpSize.Width()*4;
+        rLayout.ScanLineStride = rLayout.ScanLineBytes;
+
+        uno::Sequence< sal_Int8 > aRes = vcl::bitmap::CanvasExtractBitmapData(mpBackBuffer->getBitmapReference(), rect);
+        return aRes;
+    }
+
+    uno::Sequence< sal_Int8 > CanvasBitmapHelper::getPixel( rendering::IntegerBitmapLayout& rLayout,
+                                                            const geometry::IntegerPoint2D& pos )
+    {
+        SAL_INFO( "canvas.vcl", "::vclcanvas::CanvasBitmapHelper::getPixel()" );
+
+        if( !mpBackBuffer )
+            return uno::Sequence< sal_Int8 >(); // we're disposed
+
+        rLayout = getMemoryLayout();
+        rLayout.ScanLines = 1;
+        rLayout.ScanLineBytes = 4;
+        rLayout.ScanLineStride = rLayout.ScanLineBytes;
+
+        const Size aBmpSize( mpBackBuffer->getBitmapReference().GetSizePixel() );
+
+        ENSURE_ARG_OR_THROW( pos.X >= 0 && pos.X < aBmpSize.Width(),
+                         "X coordinate out of bounds" );
+        ENSURE_ARG_OR_THROW( pos.Y >= 0 && pos.Y < aBmpSize.Height(),
+                         "Y coordinate out of bounds" );
+
+        ::Color aColor = mpBackBuffer->getBitmapReference().GetPixelColor(pos.X, pos.Y);
+
+        uno::Sequence< sal_Int8 > aRes( 4 );
+        sal_Int8* pRes = aRes.getArray();
+        pRes[ 0 ] = aColor.GetRed();
+        pRes[ 1 ] = aColor.GetGreen();
+        pRes[ 2 ] = aColor.GetBlue();
+        pRes[ 3 ] = 255 - aColor.GetAlpha();
+
+        return aRes;
+    }
+
+    rendering::IntegerBitmapLayout CanvasBitmapHelper::getMemoryLayout() const
+    {
+        if( !mpOutDevProvider )
+            return rendering::IntegerBitmapLayout(); // we're disposed
+
+        rendering::IntegerBitmapLayout aBitmapLayout( ::canvas::tools::getStdMemoryLayout(getSize()) );
+        if ( !hasAlpha() )
+            aBitmapLayout.ColorSpace = canvas::tools::getStdColorSpaceWithoutAlpha();
+
+        return aBitmapLayout;
+    }
+
+    BitmapEx CanvasBitmapHelper::getBitmap() const
+    {
+        if( !mpBackBuffer )
+            return BitmapEx(); // we're disposed
+        else
+            return mpBackBuffer->getBitmapReference();
+    }
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/canvasbitmaphelper.hxx b/canvas/source/vcl/canvasbitmaphelper.hxx
new file mode 100644
index 000000000..7e75f92e8
--- /dev/null
+++ b/canvas/source/vcl/canvasbitmaphelper.hxx
@@ -0,0 +1,106 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include "canvashelper.hxx"
+
+#include <vcl/bitmapex.hxx>
+
+#include "bitmapbackbuffer.hxx"
+
+
+namespace vclcanvas
+{
+    /** Helper class for basic canvasbitmap functionality. Extends
+        CanvasHelper with some CanvasBitmap specialities, such as alpha
+        support.
+
+        Note that a plain CanvasHelper, although it does support the
+        XBitmap interface, has no provision for alpha channel on VCL
+        (at least no efficient one. If the alpha VDev one day gets
+        part of SAL, we might change that).
+     */
+    class CanvasBitmapHelper : public CanvasHelper
+    {
+    public:
+        CanvasBitmapHelper();
+
+        /** Set a new bitmap on this helper.
+
+            This method late-initializes the bitmap canvas helper,
+            providing it with the necessary device and output
+            objects. The internally stored bitmap representation is
+            updated from the given bitmap, including any size
+            changes. Note that the CanvasHelper does <em>not</em> take
+            ownership of the SpriteCanvas object, nor does it perform
+            any reference counting. Thus, to prevent reference counted
+            objects from deletion, the user of this class is
+            responsible for holding ref-counted references to those
+            objects!
+
+            @param rBitmap
+            Content of this bitmap is used as our new content (our
+            internal size is adapted to the size of the bitmap given)
+
+            @param rDevice
+            Reference device for this canvas bitmap
+
+            @param rOutDevProvider
+            Reference output device. Used to create matching bitmap.
+         */
+        void init( const BitmapEx&                              rBitmap,
+                   css::rendering::XGraphicDevice&              rDevice,
+                   const OutDevProviderSharedPtr&               rOutDevProvider );
+
+
+        // Overridden CanvasHelper functionality
+        // =====================================
+
+        void disposing();
+
+        void clear();
+
+        css::geometry::IntegerSize2D getSize() const;
+
+        css::uno::Reference< css::rendering::XBitmap >
+            getScaledBitmap( const css::geometry::RealSize2D&  newSize,
+                             bool                                           beFast );
+
+        css::uno::Sequence< sal_Int8 >
+            getData( css::rendering::IntegerBitmapLayout&      bitmapLayout,
+                     const css::geometry::IntegerRectangle2D&  rect );
+
+        css::uno::Sequence< sal_Int8 >
+            getPixel( css::rendering::IntegerBitmapLayout& bitmapLayout,
+                      const css::geometry::IntegerPoint2D& pos );
+
+        css::rendering::IntegerBitmapLayout getMemoryLayout() const;
+
+        /// @internal
+        BitmapEx getBitmap() const;
+
+    private:
+
+        BitmapBackBufferSharedPtr   mpBackBuffer;
+        OutDevProviderSharedPtr     mpOutDevReference;
+    };
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/canvascustomsprite.cxx b/canvas/source/vcl/canvascustomsprite.cxx
new file mode 100644
index 000000000..4bdebd448
--- /dev/null
+++ b/canvas/source/vcl/canvascustomsprite.cxx
@@ -0,0 +1,158 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#include <sal/config.h>
+
+#include <basegfx/point/b2dpoint.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <tools/diagnose_ex.h>
+#include <vcl/outdev.hxx>
+
+#include "canvascustomsprite.hxx"
+
+using namespace ::com::sun::star;
+
+
+namespace vclcanvas
+{
+
+    CanvasCustomSprite::CanvasCustomSprite( const geometry::RealSize2D&               rSpriteSize,
+                                            rendering::XGraphicDevice&                rDevice,
+                                            const ::canvas::SpriteSurface::Reference& rOwningSpriteCanvas,
+                                            const OutDevProviderSharedPtr&            rOutDevProvider,
+                                            bool                                      bShowSpriteBounds )
+    {
+        ENSURE_OR_THROW( rOwningSpriteCanvas &&
+                         rOutDevProvider,
+                         "CanvasCustomSprite::CanvasCustomSprite(): Invalid sprite canvas" );
+
+        // setup back buffer
+
+
+        const ::Size aSize(
+            static_cast<sal_Int32>( std::max( 1.0,
+                                                ceil( rSpriteSize.Width ))),  // round up to nearest int,
+                                                                              // enforce sprite to have at
+                                                                               // least (1,1) pixel size
+            static_cast<sal_Int32>( std::max( 1.0,
+                                                ceil( rSpriteSize.Height ))) );
+
+        // create content backbuffer in screen depth
+        BackBufferSharedPtr pBackBuffer = std::make_shared<BackBuffer>( rOutDevProvider->getOutDev() );
+        pBackBuffer->setSize( aSize );
+
+        // create mask backbuffer
+        BackBufferSharedPtr pBackBufferMask = std::make_shared<BackBuffer>( rOutDevProvider->getOutDev() );
+        pBackBufferMask->setSize( aSize );
+
+        // TODO(F1): Implement alpha vdev (could prolly enable
+        // antialiasing again, then)
+
+        // disable font antialiasing (causes ugly shadows otherwise)
+        pBackBuffer->getOutDev().SetAntialiasing( AntialiasingFlags::DisableText );
+        pBackBufferMask->getOutDev().SetAntialiasing( AntialiasingFlags::DisableText );
+
+        // set mask vdev drawmode, such that everything is painted
+        // black. That leaves us with a binary image, white for
+        // background, black for painted content
+        pBackBufferMask->getOutDev().SetDrawMode( DrawModeFlags::BlackLine | DrawModeFlags::BlackFill | DrawModeFlags::BlackText |
+                                                  DrawModeFlags::BlackGradient | DrawModeFlags::BlackBitmap );
+
+
+        // setup canvas helper
+
+
+        // always render into back buffer, don't preserve state (it's
+        // our private VDev, after all), have notion of alpha
+        maCanvasHelper.init( rDevice,
+                             pBackBuffer,
+                             false,
+                             true );
+        maCanvasHelper.setBackgroundOutDev( pBackBufferMask );
+
+
+        // setup sprite helper
+
+
+        maSpriteHelper.init( rSpriteSize,
+                             rOwningSpriteCanvas,
+                             pBackBuffer,
+                             pBackBufferMask,
+                             bShowSpriteBounds );
+
+        // clear sprite to 100% transparent
+        maCanvasHelper.clear();
+    }
+
+    OUString SAL_CALL CanvasCustomSprite::getImplementationName()
+    {
+        return "VCLCanvas.CanvasCustomSprite";
+    }
+
+    sal_Bool SAL_CALL CanvasCustomSprite::supportsService( const OUString& ServiceName )
+    {
+        return cppu::supportsService( this, ServiceName );
+    }
+
+    uno::Sequence< OUString > SAL_CALL CanvasCustomSprite::getSupportedServiceNames()
+    {
+        return { "com.sun.star.rendering.CanvasCustomSprite" };
+    }
+
+    // Sprite
+    void CanvasCustomSprite::redraw( OutputDevice& rOutDev,
+                                     bool          bBufferedUpdate ) const
+    {
+        SolarMutexGuard aGuard;
+
+        redraw( rOutDev, maSpriteHelper.getPosPixel(), bBufferedUpdate );
+    }
+
+    void CanvasCustomSprite::redraw( OutputDevice&              rOutDev,
+                                     const ::basegfx::B2DPoint& rOrigOutputPos,
+                                     bool                       bBufferedUpdate ) const
+    {
+        SolarMutexGuard aGuard;
+
+        maSpriteHelper.redraw( rOutDev,
+                               rOrigOutputPos,
+                               mbSurfaceDirty,
+                               bBufferedUpdate );
+
+        mbSurfaceDirty = false;
+    }
+
+    bool CanvasCustomSprite::repaint( const GraphicObjectSharedPtr& rGrf,
+                                      const rendering::ViewState&   viewState,
+                                      const rendering::RenderState& renderState,
+                                      const ::Point&                rPt,
+                                      const ::Size&                 rSz,
+                                      const GraphicAttr&            rAttr ) const
+    {
+        SolarMutexGuard aGuard;
+
+        mbSurfaceDirty = true;
+
+        return maCanvasHelper.repaint( rGrf, viewState, renderState, rPt, rSz, rAttr );
+    }
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/canvascustomsprite.hxx b/canvas/source/vcl/canvascustomsprite.hxx
new file mode 100644
index 000000000..1a7d3ccfb
--- /dev/null
+++ b/canvas/source/vcl/canvascustomsprite.hxx
@@ -0,0 +1,116 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <cppuhelper/compbase.hxx>
+#include <comphelper/uno3.hxx>
+
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/rendering/XBitmapCanvas.hpp>
+#include <com/sun/star/rendering/XCustomSprite.hpp>
+#include <com/sun/star/rendering/XIntegerBitmap.hpp>
+
+#include <base/basemutexhelper.hxx>
+#include <base/spritesurface.hxx>
+#include <base/canvascustomspritebase.hxx>
+
+#include "sprite.hxx"
+#include "canvashelper.hxx"
+#include "spritehelper.hxx"
+#include "impltools.hxx"
+#include "repainttarget.hxx"
+
+
+namespace vclcanvas
+{
+    typedef ::cppu::WeakComponentImplHelper< css::rendering::XCustomSprite,
+                                             css::rendering::XBitmapCanvas,
+                                             css::rendering::XIntegerBitmap,
+                                             css::lang::XServiceInfo >  CanvasCustomSpriteBase_Base;
+    /** Mixin Sprite
+
+        Have to mixin the Sprite interface before deriving from
+        ::canvas::CanvasCustomSpriteBase, as this template should
+        already implement some of those interface methods.
+
+        The reason why this appears kinda convoluted is the fact that
+        we cannot specify non-IDL types as WeakComponentImplHelper
+        template args, and furthermore, don't want to derive
+        ::canvas::CanvasCustomSpriteBase directly from
+        ::canvas::Sprite (because derivees of
+        ::canvas::CanvasCustomSpriteBase have to explicitly forward
+        the XInterface methods (e.g. via DECLARE_UNO3_AGG_DEFAULTS)
+        anyway). Basically, ::canvas::CanvasCustomSpriteBase should
+        remain a base class that provides implementation, not to
+        enforce any specific interface on its derivees.
+     */
+    class CanvasCustomSpriteSpriteBase_Base : public ::canvas::BaseMutexHelper< CanvasCustomSpriteBase_Base >,
+                                                 public Sprite
+    {
+    };
+
+    typedef ::canvas::CanvasCustomSpriteBase< CanvasCustomSpriteSpriteBase_Base,
+                                              SpriteHelper,
+                                              CanvasHelper,
+                                              tools::LocalGuard,
+                                              ::cppu::OWeakObject >                     CanvasCustomSpriteBaseT;
+
+    /* Definition of CanvasCustomSprite class */
+
+    class CanvasCustomSprite : public CanvasCustomSpriteBaseT,
+                               public RepaintTarget
+    {
+    public:
+        CanvasCustomSprite( const css::geometry::RealSize2D&              rSpriteSize,
+                            css::rendering::XGraphicDevice&               rDevice,
+                            const ::canvas::SpriteSurface::Reference&     rOwningSpriteCanvas,
+                            const OutDevProviderSharedPtr&                rOutDevProvider,
+                            bool                                          bShowSpriteBounds );
+
+        // Forwarding the XComponent implementation to the
+        // cppu::ImplHelper templated base
+        //                                    Classname           Base doing refcount          Base implementing the XComponent interface
+        //                                          |                    |                         |
+        //                                          V                    V                         V
+        DECLARE_UNO3_XCOMPONENT_AGG_DEFAULTS( CanvasCustomSprite, CanvasCustomSpriteBase_Base, ::cppu::WeakComponentImplHelperBase )
+
+        // XServiceInfo
+        virtual OUString SAL_CALL getImplementationName() override;
+        virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
+        virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+        // Sprite
+        virtual void redraw( OutputDevice& rOutDev,
+                             bool          bBufferedUpdate ) const override;
+        virtual void redraw( OutputDevice&              rOutDev,
+                             const ::basegfx::B2DPoint& rPos,
+                             bool                       bBufferedUpdate ) const override;
+
+        // RepaintTarget
+        virtual bool repaint( const GraphicObjectSharedPtr&                   rGrf,
+                              const css::rendering::ViewState&   viewState,
+                              const css::rendering::RenderState& renderState,
+                              const ::Point&                                  rPt,
+                              const ::Size&                                   rSz,
+                              const GraphicAttr&                              rAttr ) const override;
+    };
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/canvasfont.cxx b/canvas/source/vcl/canvasfont.cxx
new file mode 100644
index 000000000..e7fab0492
--- /dev/null
+++ b/canvas/source/vcl/canvasfont.cxx
@@ -0,0 +1,177 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <basegfx/numeric/ftools.hxx>
+#include <canvas/canvastools.hxx>
+#include <com/sun/star/rendering/PanoseProportion.hpp>
+#include <cppuhelper/supportsservice.hxx>
+#include <i18nlangtag/languagetag.hxx>
+#include <rtl/math.hxx>
+#include <vcl/metric.hxx>
+#include <vcl/virdev.hxx>
+
+#include "canvasfont.hxx"
+#include "textlayout.hxx"
+
+using namespace ::com::sun::star;
+
+
+namespace vclcanvas
+{
+    CanvasFont::CanvasFont( const rendering::FontRequest&                   rFontRequest,
+                            const uno::Sequence< beans::PropertyValue >&    rExtraFontProperties,
+                            const geometry::Matrix2D&                       rFontMatrix,
+                            rendering::XGraphicDevice&                      rDevice,
+                            const OutDevProviderSharedPtr&                  rOutDevProvider ) :
+        CanvasFont_Base( m_aMutex ),
+        maFont( vcl::Font( rFontRequest.FontDescription.FamilyName,
+                      rFontRequest.FontDescription.StyleName,
+                      Size( 0, ::basegfx::fround(rFontRequest.CellSize) ) ) ),
+        maFontRequest( rFontRequest ),
+        mpRefDevice( &rDevice ),
+        mpOutDevProvider( rOutDevProvider )
+    {
+        maFont->SetAlignment( ALIGN_BASELINE );
+        maFont->SetCharSet( (rFontRequest.FontDescription.IsSymbolFont==css::util::TriState_YES) ? RTL_TEXTENCODING_SYMBOL : RTL_TEXTENCODING_UNICODE );
+        maFont->SetVertical( rFontRequest.FontDescription.IsVertical==css::util::TriState_YES );
+
+        // TODO(F2): improve panose->vclenum conversion
+        maFont->SetWeight( static_cast<FontWeight>(rFontRequest.FontDescription.FontDescription.Weight) );
+        maFont->SetItalic( (rFontRequest.FontDescription.FontDescription.Letterform<=8) ? ITALIC_NONE : ITALIC_NORMAL );
+        maFont->SetPitch(
+                rFontRequest.FontDescription.FontDescription.Proportion == rendering::PanoseProportion::MONO_SPACED
+                    ? PITCH_FIXED : PITCH_VARIABLE);
+
+        maFont->SetLanguage( LanguageTag::convertToLanguageType( rFontRequest.Locale, false));
+
+        // adjust to stretched/shrunk font
+        if( !::rtl::math::approxEqual( rFontMatrix.m00, rFontMatrix.m11) )
+        {
+            OutputDevice& rOutDev( rOutDevProvider->getOutDev() );
+
+            const bool bOldMapState( rOutDev.IsMapModeEnabled() );
+            rOutDev.EnableMapMode(false);
+
+            const Size aSize = rOutDev.GetFontMetric( *maFont ).GetFontSize();
+
+            const double fDividend( rFontMatrix.m10 + rFontMatrix.m11 );
+            double fStretch = rFontMatrix.m00 + rFontMatrix.m01;
+
+            if( !::basegfx::fTools::equalZero( fDividend) )
+                fStretch /= fDividend;
+
+            const ::tools::Long nNewWidth = ::basegfx::fround( aSize.Width() * fStretch );
+
+            maFont->SetAverageFontWidth( nNewWidth );
+
+            rOutDev.EnableMapMode(bOldMapState);
+        }
+
+        sal_uInt32 nEmphasisMark = 0;
+
+        ::canvas::tools::extractExtraFontProperties(rExtraFontProperties, nEmphasisMark);
+
+        if (nEmphasisMark)
+            maFont->SetEmphasisMark(FontEmphasisMark(nEmphasisMark));
+    }
+
+    void SAL_CALL CanvasFont::disposing()
+    {
+        SolarMutexGuard aGuard;
+
+        mpOutDevProvider.reset();
+        mpRefDevice.clear();
+    }
+
+    uno::Reference< rendering::XTextLayout > SAL_CALL  CanvasFont::createTextLayout( const rendering::StringContext& aText, sal_Int8 nDirection, sal_Int64 )
+    {
+        SolarMutexGuard aGuard;
+
+        if( !mpRefDevice.is() )
+            return uno::Reference< rendering::XTextLayout >(); // we're disposed
+
+        return new TextLayout( aText,
+                               nDirection,
+                               Reference( this ),
+                               mpRefDevice,
+                               mpOutDevProvider);
+    }
+
+    rendering::FontRequest SAL_CALL  CanvasFont::getFontRequest(  )
+    {
+        SolarMutexGuard aGuard;
+
+        return maFontRequest;
+    }
+
+    rendering::FontMetrics SAL_CALL  CanvasFont::getFontMetrics(  )
+    {
+        SolarMutexGuard aGuard;
+
+        OutputDevice& rOutDev = mpOutDevProvider->getOutDev();
+        ScopedVclPtrInstance< VirtualDevice > pVDev( rOutDev );
+        pVDev->SetFont(getVCLFont());
+        const ::FontMetric& aMetric( pVDev->GetFontMetric() );
+
+        return rendering::FontMetrics(
+            aMetric.GetAscent(),
+            aMetric.GetDescent(),
+            aMetric.GetInternalLeading(),
+            aMetric.GetExternalLeading(),
+            0,
+            aMetric.GetDescent() / 2.0,
+            aMetric.GetAscent() / 2.0);
+    }
+
+    uno::Sequence< double > SAL_CALL  CanvasFont::getAvailableSizes(  )
+    {
+        // TODO(F1)
+        return uno::Sequence< double >();
+    }
+
+    uno::Sequence< beans::PropertyValue > SAL_CALL  CanvasFont::getExtraFontProperties(  )
+    {
+        // TODO(F1)
+        return uno::Sequence< beans::PropertyValue >();
+    }
+
+    OUString SAL_CALL CanvasFont::getImplementationName()
+    {
+        return "VCLCanvas::CanvasFont";
+    }
+
+    sal_Bool SAL_CALL CanvasFont::supportsService( const OUString& ServiceName )
+    {
+        return cppu::supportsService( this, ServiceName );
+    }
+
+    uno::Sequence< OUString > SAL_CALL CanvasFont::getSupportedServiceNames()
+    {
+        return { "com.sun.star.rendering.CanvasFont" };
+    }
+
+    vcl::Font const & CanvasFont::getVCLFont() const
+    {
+        return *maFont;
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/canvasfont.hxx b/canvas/source/vcl/canvasfont.hxx
new file mode 100644
index 000000000..fdfa870f5
--- /dev/null
+++ b/canvas/source/vcl/canvasfont.hxx
@@ -0,0 +1,87 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <cppuhelper/compbase.hxx>
+#include <cppuhelper/basemutex.hxx>
+
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/geometry/Matrix2D.hpp>
+#include <com/sun/star/rendering/FontRequest.hpp>
+#include <com/sun/star/rendering/XCanvasFont.hpp>
+#include <com/sun/star/rendering/XGraphicDevice.hpp>
+
+#include <vcl/font.hxx>
+
+#include <vclwrapper.hxx>
+
+#include "outdevprovider.hxx"
+
+
+/* Definition of CanvasFont class */
+
+namespace vclcanvas
+{
+    typedef ::cppu::WeakComponentImplHelper< css::rendering::XCanvasFont,
+                                             css::lang::XServiceInfo > CanvasFont_Base;
+
+    class CanvasFont : public ::cppu::BaseMutex,
+                       public CanvasFont_Base
+    {
+    public:
+        typedef rtl::Reference<CanvasFont> Reference;
+
+        /// make noncopyable
+        CanvasFont(const CanvasFont&) = delete;
+        const CanvasFont& operator=(const CanvasFont&) = delete;
+
+        CanvasFont( const css::rendering::FontRequest&                                     fontRequest,
+                    const css::uno::Sequence< css::beans::PropertyValue >&                 extraFontProperties,
+                    const css::geometry::Matrix2D&                                         rFontMatrix,
+                    css::rendering::XGraphicDevice&                                        rDevice,
+                    const OutDevProviderSharedPtr&                                                      rOutDevProvider );
+
+        /// Dispose all internal references
+        virtual void SAL_CALL disposing() override;
+
+        // XCanvasFont
+        virtual css::uno::Reference< css::rendering::XTextLayout > SAL_CALL createTextLayout( const css::rendering::StringContext& aText, sal_Int8 nDirection, sal_Int64 nRandomSeed ) override;
+        virtual css::rendering::FontRequest SAL_CALL getFontRequest(  ) override;
+        virtual css::rendering::FontMetrics SAL_CALL getFontMetrics(  ) override;
+        virtual css::uno::Sequence< double > SAL_CALL getAvailableSizes(  ) override;
+        virtual css::uno::Sequence< css::beans::PropertyValue > SAL_CALL getExtraFontProperties(  ) override;
+
+        // XServiceInfo
+        virtual OUString SAL_CALL getImplementationName() override;
+        virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
+        virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+        vcl::Font const & getVCLFont() const;
+
+    private:
+        ::canvas::vcltools::VCLObject<vcl::Font>                          maFont;
+        css::rendering::FontRequest                                       maFontRequest;
+        css::uno::Reference< css::rendering::XGraphicDevice>              mpRefDevice;
+        OutDevProviderSharedPtr                                           mpOutDevProvider;
+    };
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/canvashelper.cxx b/canvas/source/vcl/canvashelper.cxx
new file mode 100644
index 000000000..918a8f5f9
--- /dev/null
+++ b/canvas/source/vcl/canvashelper.cxx
@@ -0,0 +1,1184 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <basegfx/matrix/b2dhommatrix.hxx>
+#include <basegfx/numeric/ftools.hxx>
+#include <basegfx/point/b2dpoint.hxx>
+#include <basegfx/polygon/b2dlinegeometry.hxx>
+#include <basegfx/polygon/b2dpolygon.hxx>
+#include <basegfx/polygon/b2dpolygontools.hxx>
+#include <basegfx/range/b2drectangle.hxx>
+#include <basegfx/utils/canvastools.hxx>
+#include <basegfx/vector/b2dsize.hxx>
+#include <com/sun/star/drawing/LineCap.hpp>
+#include <com/sun/star/rendering/CompositeOperation.hpp>
+#include <com/sun/star/rendering/PathCapType.hpp>
+#include <com/sun/star/rendering/PathJoinType.hpp>
+#include <com/sun/star/rendering/TextDirection.hpp>
+#include <comphelper/sequence.hxx>
+#include <rtl/math.hxx>
+#include <tools/diagnose_ex.h>
+#include <tools/poly.hxx>
+#include <vcl/bitmapex.hxx>
+#include <vcl/BitmapReadAccess.hxx>
+#include <vcl/canvastools.hxx>
+#include <vcl/BitmapAlphaClampFilter.hxx>
+#include <vcl/skia/SkiaHelper.hxx>
+
+#include <canvas/canvastools.hxx>
+
+#include "canvasbitmap.hxx"
+#include "canvasfont.hxx"
+#include "canvashelper.hxx"
+#include "impltools.hxx"
+#include "textlayout.hxx"
+
+
+using namespace ::com::sun::star;
+
+namespace vclcanvas
+{
+    namespace
+    {
+        basegfx::B2DLineJoin b2DJoineFromJoin( sal_Int8 nJoinType )
+        {
+            switch( nJoinType )
+            {
+                case rendering::PathJoinType::NONE:
+                    return basegfx::B2DLineJoin::NONE;
+
+                case rendering::PathJoinType::MITER:
+                    return basegfx::B2DLineJoin::Miter;
+
+                case rendering::PathJoinType::ROUND:
+                    return basegfx::B2DLineJoin::Round;
+
+                case rendering::PathJoinType::BEVEL:
+                    return basegfx::B2DLineJoin::Bevel;
+
+                default:
+                    ENSURE_OR_THROW( false,
+                                      "b2DJoineFromJoin(): Unexpected join type" );
+            }
+
+            return basegfx::B2DLineJoin::NONE;
+        }
+
+        drawing::LineCap unoCapeFromCap( sal_Int8 nCapType)
+        {
+            switch ( nCapType)
+            {
+                case rendering::PathCapType::BUTT:
+                    return drawing::LineCap_BUTT;
+
+                case rendering::PathCapType::ROUND:
+                    return drawing::LineCap_ROUND;
+
+                case rendering::PathCapType::SQUARE:
+                    return drawing::LineCap_SQUARE;
+
+                default:
+                    ENSURE_OR_THROW( false,
+                                      "unoCapeFromCap(): Unexpected cap type" );
+            }
+            return drawing::LineCap_BUTT;
+        }
+    }
+
+    CanvasHelper::CanvasHelper() :
+        mpDevice(),
+        mbHaveAlpha( false )
+    {
+    }
+
+    void CanvasHelper::disposing()
+    {
+        mpDevice = nullptr;
+        mpProtectedOutDevProvider.reset();
+        mpOutDevProvider.reset();
+        mp2ndOutDevProvider.reset();
+    }
+
+    void CanvasHelper::init( rendering::XGraphicDevice&     rDevice,
+                             const OutDevProviderSharedPtr& rOutDev,
+                             bool                           bProtect,
+                             bool                           bHaveAlpha )
+    {
+        // cast away const, need to change refcount (as this is
+        // ~invisible to client code, still logically const)
+        mpDevice    = &rDevice;
+        mbHaveAlpha = bHaveAlpha;
+
+        setOutDev( rOutDev, bProtect );
+    }
+
+    void CanvasHelper::setOutDev( const OutDevProviderSharedPtr& rOutDev,
+                                  bool                           bProtect )
+    {
+        if( bProtect )
+            mpProtectedOutDevProvider = rOutDev;
+        else
+            mpProtectedOutDevProvider.reset();
+
+        mpOutDevProvider = rOutDev;
+    }
+
+    void CanvasHelper::setBackgroundOutDev( const OutDevProviderSharedPtr& rOutDev )
+    {
+        mp2ndOutDevProvider = rOutDev;
+        mp2ndOutDevProvider->getOutDev().EnableMapMode( false );
+        mp2ndOutDevProvider->getOutDev().SetAntialiasing( AntialiasingFlags::Enable );
+    }
+
+    void CanvasHelper::clear()
+    {
+        // are we disposed?
+        if( !mpOutDevProvider )
+            return;
+
+        OutputDevice& rOutDev( mpOutDevProvider->getOutDev() );
+        tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDevProvider );
+
+        rOutDev.EnableMapMode( false );
+        rOutDev.SetAntialiasing( AntialiasingFlags::Enable );
+        rOutDev.SetLineColor( COL_WHITE );
+        rOutDev.SetFillColor( COL_WHITE );
+        rOutDev.SetClipRegion();
+        rOutDev.DrawRect( ::tools::Rectangle( Point(),
+                                     rOutDev.GetOutputSizePixel()) );
+
+        if( !mp2ndOutDevProvider )
+            return;
+
+        OutputDevice& rOutDev2( mp2ndOutDevProvider->getOutDev() );
+
+        rOutDev2.SetDrawMode( DrawModeFlags::Default );
+        rOutDev2.EnableMapMode( false );
+        rOutDev2.SetAntialiasing( AntialiasingFlags::Enable );
+        rOutDev2.SetLineColor( COL_WHITE );
+        rOutDev2.SetFillColor( COL_WHITE );
+        rOutDev2.SetClipRegion();
+        rOutDev2.DrawRect( ::tools::Rectangle( Point(),
+                                      rOutDev2.GetOutputSizePixel()) );
+        rOutDev2.SetDrawMode( DrawModeFlags::BlackLine | DrawModeFlags::BlackFill | DrawModeFlags::BlackText |
+                              DrawModeFlags::BlackGradient | DrawModeFlags::BlackBitmap );
+    }
+
+    void CanvasHelper::drawLine( const rendering::XCanvas*      ,
+                                 const geometry::RealPoint2D&   aStartRealPoint2D,
+                                 const geometry::RealPoint2D&   aEndRealPoint2D,
+                                 const rendering::ViewState&    viewState,
+                                 const rendering::RenderState&  renderState )
+    {
+        // are we disposed?
+        if( !mpOutDevProvider )
+            return;
+
+        // nope, render
+        tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDevProvider );
+        setupOutDevState( viewState, renderState, LINE_COLOR );
+
+        const Point aStartPoint( tools::mapRealPoint2D( aStartRealPoint2D,
+                                                        viewState, renderState ) );
+        const Point aEndPoint( tools::mapRealPoint2D( aEndRealPoint2D,
+                                                      viewState, renderState ) );
+        // TODO(F2): alpha
+        mpOutDevProvider->getOutDev().DrawLine( aStartPoint, aEndPoint );
+
+        if( mp2ndOutDevProvider )
+            mp2ndOutDevProvider->getOutDev().DrawLine( aStartPoint, aEndPoint );
+    }
+
+    void CanvasHelper::drawBezier( const rendering::XCanvas*            ,
+                                   const geometry::RealBezierSegment2D& aBezierSegment,
+                                   const geometry::RealPoint2D&         _aEndPoint,
+                                   const rendering::ViewState&          viewState,
+                                   const rendering::RenderState&        renderState )
+    {
+        if( !mpOutDevProvider )
+            return;
+
+        tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDevProvider );
+        setupOutDevState( viewState, renderState, LINE_COLOR );
+
+        const Point& rStartPoint( tools::mapRealPoint2D( geometry::RealPoint2D(aBezierSegment.Px,
+                                                                               aBezierSegment.Py),
+                                                        viewState, renderState ) );
+        const Point& rCtrlPoint1( tools::mapRealPoint2D( geometry::RealPoint2D(aBezierSegment.C1x,
+                                                                               aBezierSegment.C1y),
+                                                        viewState, renderState ) );
+        const Point& rCtrlPoint2( tools::mapRealPoint2D( geometry::RealPoint2D(aBezierSegment.C2x,
+                                                                               aBezierSegment.C2y),
+                                                         viewState, renderState ) );
+        const Point& rEndPoint( tools::mapRealPoint2D( _aEndPoint,
+                                                       viewState, renderState ) );
+
+        ::tools::Polygon aPoly(4);
+        aPoly.SetPoint( rStartPoint, 0 );
+        aPoly.SetFlags( 0, PolyFlags::Normal );
+        aPoly.SetPoint( rCtrlPoint1, 1 );
+        aPoly.SetFlags( 1, PolyFlags::Control );
+        aPoly.SetPoint( rCtrlPoint2, 2 );
+        aPoly.SetFlags( 2, PolyFlags::Control );
+        aPoly.SetPoint( rEndPoint, 3 );
+        aPoly.SetFlags( 3, PolyFlags::Normal );
+
+        // TODO(F2): alpha
+        mpOutDevProvider->getOutDev().DrawPolygon( aPoly );
+        if( mp2ndOutDevProvider )
+            mp2ndOutDevProvider->getOutDev().DrawPolygon( aPoly );
+    }
+
+    uno::Reference< rendering::XCachedPrimitive > CanvasHelper::drawPolyPolygon( const rendering::XCanvas*                          ,
+                                                                                 const uno::Reference< rendering::XPolyPolygon2D >& xPolyPolygon,
+                                                                                 const rendering::ViewState&                        viewState,
+                                                                                 const rendering::RenderState&                      renderState )
+    {
+        ENSURE_ARG_OR_THROW( xPolyPolygon.is(),
+                         "polygon is NULL");
+
+        if( mpOutDevProvider )
+        {
+            tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDevProvider );
+            setupOutDevState( viewState, renderState, LINE_COLOR );
+
+            const ::basegfx::B2DPolyPolygon& rPolyPoly(
+                ::basegfx::unotools::b2DPolyPolygonFromXPolyPolygon2D(xPolyPolygon) );
+            const ::tools::PolyPolygon aPolyPoly( tools::mapPolyPolygon( rPolyPoly, viewState, renderState ) );
+
+            if( rPolyPoly.isClosed() )
+            {
+                mpOutDevProvider->getOutDev().DrawPolyPolygon( aPolyPoly );
+
+                if( mp2ndOutDevProvider )
+                    mp2ndOutDevProvider->getOutDev().DrawPolyPolygon( aPolyPoly );
+            }
+            else
+            {
+                // mixed open/closed state. Cannot render open polygon
+                // via DrawPolyPolygon(), since that implicitly
+                // closed every polygon. OTOH, no need to distinguish
+                // further and render closed polygons via
+                // DrawPolygon(), and open ones via DrawPolyLine():
+                // closed polygons will simply already contain the
+                // closing segment.
+                sal_uInt16 nSize( aPolyPoly.Count() );
+
+                for( sal_uInt16 i=0; i<nSize; ++i )
+                {
+                    mpOutDevProvider->getOutDev().DrawPolyLine( aPolyPoly[i] );
+
+                    if( mp2ndOutDevProvider )
+                        mp2ndOutDevProvider->getOutDev().DrawPolyLine( aPolyPoly[i] );
+                }
+            }
+        }
+
+        // TODO(P1): Provide caching here.
+        return uno::Reference< rendering::XCachedPrimitive >(nullptr);
+    }
+
+    uno::Reference< rendering::XCachedPrimitive > CanvasHelper::strokePolyPolygon( const rendering::XCanvas*                            ,
+                                                                                   const uno::Reference< rendering::XPolyPolygon2D >&   xPolyPolygon,
+                                                                                   const rendering::ViewState&                          viewState,
+                                                                                   const rendering::RenderState&                        renderState,
+                                                                                   const rendering::StrokeAttributes&                   strokeAttributes )
+    {
+        ENSURE_ARG_OR_THROW( xPolyPolygon.is(),
+                         "polygon is NULL");
+
+        if( mpOutDevProvider )
+        {
+            tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDevProvider );
+
+            ::basegfx::B2DHomMatrix aMatrix;
+            ::canvas::tools::mergeViewAndRenderTransform(aMatrix, viewState, renderState);
+
+            ::basegfx::B2DPolyPolygon aPolyPoly(
+                ::basegfx::unotools::b2DPolyPolygonFromXPolyPolygon2D(xPolyPolygon) );
+
+            std::vector<double> aDashArray;
+            if( strokeAttributes.DashArray.hasElements() )
+                aDashArray = ::comphelper::sequenceToContainer< std::vector<double> >(strokeAttributes.DashArray);
+
+            // First try to draw directly using VCL.
+            bool directFailed = false;
+            setupOutDevState( viewState, renderState, LINE_COLOR );
+            for( sal_uInt32 i=0; i<aPolyPoly.count(); ++i )
+            {
+                if( !mpOutDevProvider->getOutDev().DrawPolyLineDirect( aMatrix, aPolyPoly.getB2DPolygon(i),
+                    strokeAttributes.StrokeWidth, 0, !aDashArray.empty() ? &aDashArray : nullptr,
+                    b2DJoineFromJoin(strokeAttributes.JoinType), unoCapeFromCap(strokeAttributes.StartCapType)))
+                {
+                    directFailed = true;
+                    break;
+                }
+            }
+            if(!directFailed)
+                return uno::Reference< rendering::XCachedPrimitive >(nullptr);
+
+            // Do it all manually.
+
+            // apply dashing, if any
+            if( strokeAttributes.DashArray.hasElements() )
+            {
+                ::basegfx::B2DPolyPolygon aDashedPolyPoly;
+
+                for( sal_uInt32 i=0; i<aPolyPoly.count(); ++i )
+                {
+                    // AW: new interface; You may also get gaps in the same run now
+                    basegfx::utils::applyLineDashing(aPolyPoly.getB2DPolygon(i), aDashArray, &aDashedPolyPoly);
+                    //aDashedPolyPoly.append(
+                    //    ::basegfx::utils::applyLineDashing( aPolyPoly.getB2DPolygon(i),
+                    //                                        aDashArray ) );
+                }
+
+                aPolyPoly = aDashedPolyPoly;
+            }
+
+            ::basegfx::B2DSize aLinePixelSize(strokeAttributes.StrokeWidth,
+                                              strokeAttributes.StrokeWidth);
+            aLinePixelSize *= aMatrix;
+            ::basegfx::B2DPolyPolygon aStrokedPolyPoly;
+            if( aLinePixelSize.getLength() < 1.42 )
+            {
+                // line width < 1.0 in device pixel, thus, output as a
+                // simple hairline poly-polygon
+                setupOutDevState( viewState, renderState, LINE_COLOR );
+
+                aStrokedPolyPoly = aPolyPoly;
+            }
+            else
+            {
+                // render as a 'thick' line
+                setupOutDevState( viewState, renderState, FILL_COLOR );
+
+                for( sal_uInt32 i=0; i<aPolyPoly.count(); ++i )
+                {
+                    double fMiterMinimumAngle;
+                    if (strokeAttributes.MiterLimit <= 1.0)
+                    {
+                        fMiterMinimumAngle = M_PI_2;
+                    }
+                    else
+                    {
+                        fMiterMinimumAngle = 2.0 * asin(1.0/strokeAttributes.MiterLimit);
+                    }
+
+                    // TODO(F2): Also use Cap settings from
+                    // StrokeAttributes, the
+                    // createAreaGeometryForLineStartEnd() method does not
+                    // seem to fit very well here
+
+                    // AW: New interface, will create bezier polygons now
+                    aStrokedPolyPoly.append(basegfx::utils::createAreaGeometry(
+                        aPolyPoly.getB2DPolygon(i),
+                        strokeAttributes.StrokeWidth*0.5,
+                        b2DJoineFromJoin(strokeAttributes.JoinType),
+                        unoCapeFromCap(strokeAttributes.StartCapType),
+                        basegfx::deg2rad(12.5) /* default fMaxAllowedAngle*/ ,
+                        0.4 /* default fMaxPartOfEdge*/ ,
+                        fMiterMinimumAngle
+                        ));
+                    //aStrokedPolyPoly.append(
+                    //    ::basegfx::utils::createAreaGeometryForPolygon( aPolyPoly.getB2DPolygon(i),
+                    //                                                    strokeAttributes.StrokeWidth*0.5,
+                    //                                                    b2DJoineFromJoin(strokeAttributes.JoinType) ) );
+                }
+            }
+
+            // transform only _now_, all the StrokeAttributes are in
+            // user coordinates.
+            aStrokedPolyPoly.transform( aMatrix );
+
+            // TODO(F2): When using alpha here, must handle that via
+            // temporary surface or somesuch.
+
+            // Note: the generated stroke poly-polygon is NOT free of
+            // self-intersections. Therefore, if we would render it
+            // via OutDev::DrawPolyPolygon(), on/off fill would
+            // generate off areas on those self-intersections.
+            for( sal_uInt32 i=0; i<aStrokedPolyPoly.count(); ++i )
+            {
+                const basegfx::B2DPolygon& polygon = aStrokedPolyPoly.getB2DPolygon( i );
+                if( polygon.isClosed()) {
+                    mpOutDevProvider->getOutDev().DrawPolygon( polygon );
+                    if( mp2ndOutDevProvider )
+                        mp2ndOutDevProvider->getOutDev().DrawPolygon( polygon );
+                } else {
+                    mpOutDevProvider->getOutDev().DrawPolyLine( polygon );
+                    if( mp2ndOutDevProvider )
+                        mp2ndOutDevProvider->getOutDev().DrawPolyLine( polygon );
+                }
+            }
+        }
+
+        // TODO(P1): Provide caching here.
+        return uno::Reference< rendering::XCachedPrimitive >(nullptr);
+    }
+
+    uno::Reference< rendering::XCachedPrimitive > CanvasHelper::strokeTexturedPolyPolygon( const rendering::XCanvas*                            ,
+                                                                                           const uno::Reference< rendering::XPolyPolygon2D >&   ,
+                                                                                           const rendering::ViewState&                          ,
+                                                                                           const rendering::RenderState&                        ,
+                                                                                           const uno::Sequence< rendering::Texture >&           ,
+                                                                                           const rendering::StrokeAttributes&                    )
+    {
+        return uno::Reference< rendering::XCachedPrimitive >(nullptr);
+    }
+
+    uno::Reference< rendering::XCachedPrimitive > CanvasHelper::strokeTextureMappedPolyPolygon( const rendering::XCanvas*                           ,
+                                                                                                const uno::Reference< rendering::XPolyPolygon2D >&  ,
+                                                                                                const rendering::ViewState&                         ,
+                                                                                                const rendering::RenderState&                       ,
+                                                                                                const uno::Sequence< rendering::Texture >&          ,
+                                                                                                const uno::Reference< geometry::XMapping2D >&       ,
+                                                                                                const rendering::StrokeAttributes&                   )
+    {
+        return uno::Reference< rendering::XCachedPrimitive >(nullptr);
+    }
+
+    uno::Reference< rendering::XPolyPolygon2D >   CanvasHelper::queryStrokeShapes( const rendering::XCanvas*                            ,
+                                                                                   const uno::Reference< rendering::XPolyPolygon2D >&   ,
+                                                                                   const rendering::ViewState&                          ,
+                                                                                   const rendering::RenderState&                        ,
+                                                                                   const rendering::StrokeAttributes&                    )
+    {
+        return uno::Reference< rendering::XPolyPolygon2D >(nullptr);
+    }
+
+    uno::Reference< rendering::XCachedPrimitive > CanvasHelper::fillPolyPolygon( const rendering::XCanvas*                          ,
+                                                                                 const uno::Reference< rendering::XPolyPolygon2D >& xPolyPolygon,
+                                                                                 const rendering::ViewState&                        viewState,
+                                                                                 const rendering::RenderState&                      renderState )
+    {
+        ENSURE_ARG_OR_THROW( xPolyPolygon.is(),
+                         "polygon is NULL");
+
+        if( mpOutDevProvider )
+        {
+            tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDevProvider );
+
+            const int nAlpha( setupOutDevState( viewState, renderState, FILL_COLOR ) );
+            ::basegfx::B2DPolyPolygon aB2DPolyPoly(
+                ::basegfx::unotools::b2DPolyPolygonFromXPolyPolygon2D(xPolyPolygon));
+            aB2DPolyPoly.setClosed(true); // ensure closed poly, otherwise VCL does not fill
+            const ::tools::PolyPolygon aPolyPoly( tools::mapPolyPolygon(
+                                             aB2DPolyPoly,
+                                             viewState, renderState ) );
+            const bool bSourceAlpha( renderState.CompositeOperation == rendering::CompositeOperation::SOURCE );
+            if( nAlpha == 255 || bSourceAlpha )
+            {
+                mpOutDevProvider->getOutDev().DrawPolyPolygon( aPolyPoly );
+            }
+            else
+            {
+                const int nTransPercent( ((255 - nAlpha) * 100 + 128) / 255 );  // normal rounding, no truncation here
+                mpOutDevProvider->getOutDev().DrawTransparent( aPolyPoly, static_cast<sal_uInt16>(nTransPercent) );
+            }
+
+            if( mp2ndOutDevProvider )
+            {
+                // HACK. Normally, CanvasHelper does not care about
+                // actually what mp2ndOutDev is...  well, here we do &
+                // assume a 1bpp target - everything beyond 97%
+                // transparency is fully transparent
+                if( nAlpha > 2 )
+                {
+                    mp2ndOutDevProvider->getOutDev().SetFillColor( COL_BLACK );
+                    mp2ndOutDevProvider->getOutDev().DrawPolyPolygon( aPolyPoly );
+                }
+            }
+        }
+
+        // TODO(P1): Provide caching here.
+        return uno::Reference< rendering::XCachedPrimitive >(nullptr);
+    }
+
+    uno::Reference< rendering::XCachedPrimitive > CanvasHelper::fillTextureMappedPolyPolygon( const rendering::XCanvas*                             ,
+                                                                                              const uno::Reference< rendering::XPolyPolygon2D >&    ,
+                                                                                              const rendering::ViewState&                           ,
+                                                                                              const rendering::RenderState&                         ,
+                                                                                              const uno::Sequence< rendering::Texture >&            ,
+                                                                                              const uno::Reference< geometry::XMapping2D >&              )
+    {
+        return uno::Reference< rendering::XCachedPrimitive >(nullptr);
+    }
+
+    uno::Reference< rendering::XCanvasFont > CanvasHelper::createFont( const rendering::XCanvas*                        ,
+                                                                       const rendering::FontRequest&                    fontRequest,
+                                                                       const uno::Sequence< beans::PropertyValue >&     extraFontProperties,
+                                                                       const geometry::Matrix2D&                        fontMatrix )
+    {
+        if( mpOutDevProvider && mpDevice )
+        {
+            // TODO(F2): font properties and font matrix
+            return uno::Reference< rendering::XCanvasFont >(
+                    new CanvasFont(fontRequest, extraFontProperties, fontMatrix,
+                                   *mpDevice, mpOutDevProvider) );
+        }
+
+        return uno::Reference< rendering::XCanvasFont >();
+    }
+
+    uno::Sequence< rendering::FontInfo > CanvasHelper::queryAvailableFonts( const rendering::XCanvas*                       ,
+                                                                            const rendering::FontInfo&                      ,
+                                                                            const uno::Sequence< beans::PropertyValue >&     )
+    {
+        // TODO(F2)
+        return uno::Sequence< rendering::FontInfo >();
+    }
+
+    uno::Reference< rendering::XCachedPrimitive > CanvasHelper::drawText( const rendering::XCanvas*                         ,
+                                                                          const rendering::StringContext&                   text,
+                                                                          const uno::Reference< rendering::XCanvasFont >&   xFont,
+                                                                          const rendering::ViewState&                       viewState,
+                                                                          const rendering::RenderState&                     renderState,
+                                                                          sal_Int8                                          textDirection )
+    {
+        ENSURE_ARG_OR_THROW( xFont.is(),
+                         "font is NULL");
+
+        if( mpOutDevProvider )
+        {
+            tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDevProvider );
+
+            ::Point aOutpos;
+            if( !setupTextOutput( aOutpos, viewState, renderState, xFont ) )
+                return uno::Reference< rendering::XCachedPrimitive >(nullptr); // no output necessary
+
+            // change text direction and layout mode
+            vcl::text::ComplexTextLayoutFlags nLayoutMode(vcl::text::ComplexTextLayoutFlags::Default);
+            switch( textDirection )
+            {
+                case rendering::TextDirection::WEAK_LEFT_TO_RIGHT:
+                case rendering::TextDirection::STRONG_LEFT_TO_RIGHT:
+                    nLayoutMode |= vcl::text::ComplexTextLayoutFlags::BiDiStrong;
+                    nLayoutMode |= vcl::text::ComplexTextLayoutFlags::TextOriginLeft;
+                    break;
+
+                case rendering::TextDirection::WEAK_RIGHT_TO_LEFT:
+                    nLayoutMode |= vcl::text::ComplexTextLayoutFlags::BiDiRtl;
+                    [[fallthrough]];
+                case rendering::TextDirection::STRONG_RIGHT_TO_LEFT:
+                    nLayoutMode |= vcl::text::ComplexTextLayoutFlags::BiDiRtl | vcl::text::ComplexTextLayoutFlags::BiDiStrong;
+                    nLayoutMode |= vcl::text::ComplexTextLayoutFlags::TextOriginRight;
+                    break;
+            }
+
+            // TODO(F2): alpha
+            mpOutDevProvider->getOutDev().SetLayoutMode( nLayoutMode );
+            mpOutDevProvider->getOutDev().DrawText( aOutpos,
+                                            text.Text,
+                                            ::canvas::tools::numeric_cast<sal_uInt16>(text.StartPosition),
+                                            ::canvas::tools::numeric_cast<sal_uInt16>(text.Length) );
+
+            if( mp2ndOutDevProvider )
+            {
+                mp2ndOutDevProvider->getOutDev().SetLayoutMode( nLayoutMode );
+                mp2ndOutDevProvider->getOutDev().DrawText( aOutpos,
+                                                   text.Text,
+                                                   ::canvas::tools::numeric_cast<sal_uInt16>(text.StartPosition),
+                                                   ::canvas::tools::numeric_cast<sal_uInt16>(text.Length) );
+            }
+        }
+
+        return uno::Reference< rendering::XCachedPrimitive >(nullptr);
+    }
+
+    uno::Reference< rendering::XCachedPrimitive > CanvasHelper::drawTextLayout( const rendering::XCanvas*                       ,
+                                                                                const uno::Reference< rendering::XTextLayout >& xLayoutedText,
+                                                                                const rendering::ViewState&                     viewState,
+                                                                                const rendering::RenderState&                   renderState )
+    {
+        ENSURE_ARG_OR_THROW( xLayoutedText.is(),
+                         "layout is NULL");
+
+        TextLayout* pTextLayout = dynamic_cast< TextLayout* >( xLayoutedText.get() );
+
+        if( pTextLayout )
+        {
+            if( mpOutDevProvider )
+            {
+                tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDevProvider );
+
+                // TODO(T3): Race condition. We're taking the font
+                // from xLayoutedText, and then calling draw() at it,
+                // without exclusive access. Move setupTextOutput(),
+                // e.g. to impltools?
+
+                ::Point aOutpos;
+                if( !setupTextOutput( aOutpos, viewState, renderState, xLayoutedText->getFont() ) )
+                    return uno::Reference< rendering::XCachedPrimitive >(nullptr); // no output necessary
+
+                // TODO(F2): What about the offset scalings?
+                // TODO(F2): alpha
+                pTextLayout->draw( mpOutDevProvider->getOutDev(), aOutpos, viewState, renderState );
+
+                if( mp2ndOutDevProvider )
+                    pTextLayout->draw( mp2ndOutDevProvider->getOutDev(), aOutpos, viewState, renderState );
+            }
+        }
+        else
+        {
+            ENSURE_ARG_OR_THROW( false,
+                                 "TextLayout not compatible with this canvas" );
+        }
+
+        return uno::Reference< rendering::XCachedPrimitive >(nullptr);
+    }
+
+    uno::Reference< rendering::XCachedPrimitive > CanvasHelper::implDrawBitmap( const rendering::XCanvas*                   pCanvas,
+                                                                                const uno::Reference< rendering::XBitmap >& xBitmap,
+                                                                                const rendering::ViewState&                 viewState,
+                                                                                const rendering::RenderState&               renderState,
+                                                                                bool                                        bModulateColors )
+    {
+        ENSURE_ARG_OR_THROW( xBitmap.is(),
+                             "bitmap is NULL");
+
+        ::canvas::tools::verifyInput( renderState,
+                                      __func__,
+                                      mpDevice,
+                                      4,
+                                      bModulateColors ? 3 : 0 );
+
+        if( mpOutDevProvider )
+        {
+            tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDevProvider );
+            setupOutDevState( viewState, renderState, IGNORE_COLOR );
+
+            ::basegfx::B2DHomMatrix aMatrix;
+            ::canvas::tools::mergeViewAndRenderTransform(aMatrix, viewState, renderState);
+
+            ::basegfx::B2DPoint aOutputPos( 0.0, 0.0 );
+            aOutputPos *= aMatrix;
+
+            BitmapEx aBmpEx( tools::bitmapExFromXBitmap(xBitmap) );
+
+            // TODO(F2): Implement modulation again for other color
+            // channels (currently, works only for alpha). Note: this
+            // is already implemented in transformBitmap()
+            if( bModulateColors &&
+                renderState.DeviceColor.getLength() > 3 )
+            {
+                // optimize away the case where alpha modulation value
+                // is 1.0 - we then simply switch off modulation at all
+                bModulateColors = !::rtl::math::approxEqual(
+                    renderState.DeviceColor[3], 1.0);
+            }
+
+            // check whether we can render bitmap as-is: must not
+            // modulate colors, matrix must either be the identity
+            // transform (that's clear), _or_ contain only
+            // translational components.
+            if( !bModulateColors &&
+                (aMatrix.isIdentity() ||
+                 (::basegfx::fTools::equalZero( aMatrix.get(0,1) ) &&
+                  ::basegfx::fTools::equalZero( aMatrix.get(1,0) ) &&
+                  ::rtl::math::approxEqual(aMatrix.get(0,0), 1.0) &&
+                  ::rtl::math::approxEqual(aMatrix.get(1,1), 1.0)) ) )
+            {
+                // optimized case: identity matrix, or only
+                // translational components.
+                mpOutDevProvider->getOutDev().DrawBitmapEx( vcl::unotools::pointFromB2DPoint( aOutputPos ),
+                                                    aBmpEx );
+
+                if( mp2ndOutDevProvider )
+                {
+                    // HACK. Normally, CanvasHelper does not care about
+                    // actually what mp2ndOutDev is...  well, here we do &
+                    // assume a 1bpp target - everything beyond 97%
+                    // transparency is fully transparent
+                    if( aBmpEx.IsAlpha() && !SkiaHelper::isVCLSkiaEnabled())
+                    {
+                        BitmapFilter::Filter(aBmpEx, BitmapAlphaClampFilter(253));
+                    }
+
+                    mp2ndOutDevProvider->getOutDev().DrawBitmapEx( vcl::unotools::pointFromB2DPoint( aOutputPos ),
+                                                           aBmpEx );
+                }
+
+                // Returning a cache object is not useful, the XBitmap
+                // itself serves this purpose
+                return uno::Reference< rendering::XCachedPrimitive >(nullptr);
+            }
+            else if( mpOutDevProvider->getOutDev().HasFastDrawTransformedBitmap())
+            {
+                ::basegfx::B2DHomMatrix aSizeTransform;
+                aSizeTransform.scale( aBmpEx.GetSizePixel().Width(), aBmpEx.GetSizePixel().Height() );
+                aMatrix = aMatrix * aSizeTransform;
+                const double fAlpha = bModulateColors ? renderState.DeviceColor[3] : 1.0;
+
+                mpOutDevProvider->getOutDev().DrawTransformedBitmapEx( aMatrix, aBmpEx, fAlpha );
+                if( mp2ndOutDevProvider )
+                {
+                    // HACK. Normally, CanvasHelper does not care about
+                    // actually what mp2ndOutDev is...  well, here we do &
+                    // assume a 1bpp target - everything beyond 97%
+                    // transparency is fully transparent
+                    if( aBmpEx.IsAlpha() && !SkiaHelper::isVCLSkiaEnabled())
+                    {
+                        BitmapFilter::Filter(aBmpEx, BitmapAlphaClampFilter(253));
+                    }
+
+                    mp2ndOutDevProvider->getOutDev().DrawTransformedBitmapEx( aMatrix, aBmpEx );
+                }
+                return uno::Reference< rendering::XCachedPrimitive >(nullptr);
+            }
+            else
+            {
+                // Matrix contains non-trivial transformation (or
+                // color modulation is requested), decompose to check
+                // whether GraphicObject suffices
+                ::basegfx::B2DVector aScale;
+                double               nRotate;
+                double               nShearX;
+                aMatrix.decompose( aScale, aOutputPos, nRotate, nShearX );
+
+                GraphicAttr             aGrfAttr;
+                GraphicObjectSharedPtr  pGrfObj;
+
+                ::Size aBmpSize( aBmpEx.GetSizePixel() );
+
+                // setup alpha modulation
+                if( bModulateColors )
+                {
+                    const double nAlphaModulation( renderState.DeviceColor[3] );
+
+                    // TODO(F1): Note that the GraphicManager has a
+                    // subtle difference in how it calculates the
+                    // resulting alpha value: it's using the inverse
+                    // alpha values (i.e. 'transparency'), and
+                    // calculates transOrig + transModulate, instead
+                    // of transOrig + transModulate -
+                    // transOrig*transModulate (which would be
+                    // equivalent to the origAlpha*modulateAlpha the
+                    // DX canvas performs)
+                    aGrfAttr.SetAlpha(
+                        static_cast< sal_uInt8 >(
+                            ::basegfx::fround( 255.0 * nAlphaModulation ) ) );
+                }
+
+                if( ::basegfx::fTools::equalZero( nShearX ) )
+                {
+                    // no shear, GraphicObject is enough (the
+                    // GraphicObject only supports scaling, rotation
+                    // and translation)
+
+                    // #i75339# don't apply mirror flags, having
+                    // negative size values is enough to make
+                    // GraphicObject flip the bitmap
+
+                    // The angle has to be mapped from radian to tenths of
+                    // degrees with the orientation reversed: [0,2Pi) ->
+                    // (3600,0].  Note that the original angle may have
+                    // values outside the [0,2Pi) interval.
+                    const double nAngleInTenthOfDegrees (3600.0 - basegfx::rad2deg<10>(nRotate));
+                    aGrfAttr.SetRotation( Degree10(::basegfx::fround(nAngleInTenthOfDegrees)) );
+
+                    pGrfObj = std::make_shared<GraphicObject>( aBmpEx );
+                }
+                else
+                {
+                    // modify output position, to account for the fact
+                    // that transformBitmap() always normalizes its output
+                    // bitmap into the smallest enclosing box.
+                    ::basegfx::B2DRectangle aDestRect;
+                    ::canvas::tools::calcTransformedRectBounds( aDestRect,
+                                                                ::basegfx::B2DRectangle(0,
+                                                                                        0,
+                                                                                        aBmpSize.Width(),
+                                                                                        aBmpSize.Height()),
+                                                                aMatrix );
+
+                    aOutputPos.setX( aDestRect.getMinX() );
+                    aOutputPos.setY( aDestRect.getMinY() );
+
+                    // complex transformation, use generic affine bitmap
+                    // transformation
+                    aBmpEx = tools::transformBitmap( aBmpEx,
+                                                     aMatrix );
+
+                    pGrfObj = std::make_shared<GraphicObject>( aBmpEx );
+
+                    // clear scale values, generated bitmap already
+                    // contains scaling
+                    aScale.setX( 1.0 ); aScale.setY( 1.0 );
+
+                    // update bitmap size, bitmap has changed above.
+                    aBmpSize = aBmpEx.GetSizePixel();
+                }
+
+                // output GraphicObject
+                const ::Point aPt( vcl::unotools::pointFromB2DPoint( aOutputPos ) );
+                const ::Size  aSz( ::basegfx::fround( aScale.getX() * aBmpSize.Width() ),
+                                   ::basegfx::fround( aScale.getY() * aBmpSize.Height() ) );
+
+                pGrfObj->Draw(mpOutDevProvider->getOutDev(),
+                              aPt,
+                              aSz,
+                              &aGrfAttr);
+
+                if( mp2ndOutDevProvider )
+                    pGrfObj->Draw(mp2ndOutDevProvider->getOutDev(),
+                                  aPt,
+                                  aSz,
+                                  &aGrfAttr);
+
+                // created GraphicObject, which possibly cached
+                // display bitmap - return cache object, to retain
+                // that information.
+                return uno::Reference< rendering::XCachedPrimitive >(
+                    new CachedBitmap( pGrfObj,
+                                      aPt,
+                                      aSz,
+                                      aGrfAttr,
+                                      viewState,
+                                      renderState,
+                                      // cast away const, need to
+                                      // change refcount (as this is
+                                      // ~invisible to client code,
+                                      // still logically const)
+                                      const_cast< rendering::XCanvas* >(pCanvas)) );
+            }
+        }
+
+        // Nothing rendered
+        return uno::Reference< rendering::XCachedPrimitive >(nullptr);
+    }
+
+    uno::Reference< rendering::XCachedPrimitive > CanvasHelper::drawBitmap( const rendering::XCanvas*                   pCanvas,
+                                                                            const uno::Reference< rendering::XBitmap >& xBitmap,
+                                                                            const rendering::ViewState&                 viewState,
+                                                                            const rendering::RenderState&               renderState )
+    {
+        return implDrawBitmap( pCanvas,
+                               xBitmap,
+                               viewState,
+                               renderState,
+                               false );
+    }
+
+    uno::Reference< rendering::XCachedPrimitive > CanvasHelper::drawBitmapModulated( const rendering::XCanvas*                      pCanvas,
+                                                                                     const uno::Reference< rendering::XBitmap >&    xBitmap,
+                                                                                     const rendering::ViewState&                    viewState,
+                                                                                     const rendering::RenderState&                  renderState )
+    {
+        return implDrawBitmap( pCanvas,
+                               xBitmap,
+                               viewState,
+                               renderState,
+                               true );
+    }
+
+    geometry::IntegerSize2D CanvasHelper::getSize()
+    {
+        if( !mpOutDevProvider )
+            return geometry::IntegerSize2D(); // we're disposed
+
+        return vcl::unotools::integerSize2DFromSize( mpOutDevProvider->getOutDev().GetOutputSizePixel() );
+    }
+
+    uno::Reference< rendering::XBitmap > CanvasHelper::getScaledBitmap( const geometry::RealSize2D& newSize,
+                                                                        bool                        beFast )
+    {
+        if( !mpOutDevProvider || !mpDevice )
+            return uno::Reference< rendering::XBitmap >(); // we're disposed
+
+        OutputDevice& rOutDev( mpOutDevProvider->getOutDev() );
+
+        tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDevProvider );
+        rOutDev.EnableMapMode( false );
+        rOutDev.SetAntialiasing( AntialiasingFlags::Enable );
+
+        // TODO(F2): Support alpha vdev canvas here
+        const Point aEmptyPoint(0,0);
+        const Size  aBmpSize( rOutDev.GetOutputSizePixel() );
+
+        BitmapEx aBitmap( rOutDev.GetBitmapEx(aEmptyPoint, aBmpSize) );
+
+        aBitmap.Scale( vcl::unotools::sizeFromRealSize2D(newSize),
+                       beFast ? BmpScaleFlag::Default : BmpScaleFlag::BestQuality );
+
+        return uno::Reference< rendering::XBitmap >(
+            new CanvasBitmap( aBitmap, *mpDevice, mpOutDevProvider ) );
+    }
+
+    uno::Sequence< sal_Int8 > CanvasHelper::getData( rendering::IntegerBitmapLayout&     rLayout,
+                                                     const geometry::IntegerRectangle2D& rect )
+    {
+        if( !mpOutDevProvider )
+            return uno::Sequence< sal_Int8 >(); // we're disposed
+
+        rLayout = getMemoryLayout();
+
+        // TODO(F2): Support alpha canvas here
+        const ::tools::Rectangle aRect( vcl::unotools::rectangleFromIntegerRectangle2D(rect) );
+
+        OutputDevice& rOutDev( mpOutDevProvider->getOutDev() );
+
+        tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDevProvider );
+        rOutDev.EnableMapMode( false );
+        rOutDev.SetAntialiasing( AntialiasingFlags::Enable );
+
+        Bitmap aBitmap( rOutDev.GetBitmapEx(aRect.TopLeft(),
+                                          aRect.GetSize()).GetBitmap() );
+
+        Bitmap::ScopedReadAccess pReadAccess( aBitmap );
+
+        ENSURE_OR_THROW( pReadAccess.get() != nullptr,
+                         "Could not acquire read access to OutDev bitmap" );
+
+        const sal_Int32 nWidth( rect.X2 - rect.X1 );
+        const sal_Int32 nHeight( rect.Y2 - rect.Y1 );
+
+        rLayout.ScanLines = nHeight;
+        rLayout.ScanLineBytes = nWidth*4;
+        rLayout.ScanLineStride = rLayout.ScanLineBytes;
+
+        uno::Sequence< sal_Int8 > aRes( 4*nWidth*nHeight );
+        sal_Int8* pRes = aRes.getArray();
+
+        int nCurrPos(0);
+        for( int y=0; y<nHeight; ++y )
+        {
+            for( int x=0; x<nWidth; ++x )
+            {
+                pRes[ nCurrPos++ ] = pReadAccess->GetColor( y, x ).GetRed();
+                pRes[ nCurrPos++ ] = pReadAccess->GetColor( y, x ).GetGreen();
+                pRes[ nCurrPos++ ] = pReadAccess->GetColor( y, x ).GetBlue();
+                pRes[ nCurrPos++ ] = -1;
+            }
+        }
+
+        return aRes;
+    }
+
+    uno::Sequence< sal_Int8 > CanvasHelper::getPixel( rendering::IntegerBitmapLayout& rLayout,
+                                                      const geometry::IntegerPoint2D& pos )
+    {
+        if( !mpOutDevProvider )
+            return uno::Sequence< sal_Int8 >(); // we're disposed
+
+        rLayout = getMemoryLayout();
+        rLayout.ScanLines = 1;
+        rLayout.ScanLineBytes = 4;
+        rLayout.ScanLineStride = rLayout.ScanLineBytes;
+
+        OutputDevice& rOutDev( mpOutDevProvider->getOutDev() );
+
+        tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDevProvider );
+        rOutDev.EnableMapMode( false );
+        rOutDev.SetAntialiasing( AntialiasingFlags::Enable );
+
+        const Size aBmpSize( rOutDev.GetOutputSizePixel() );
+
+        ENSURE_ARG_OR_THROW( pos.X >= 0 && pos.X < aBmpSize.Width(),
+                             "X coordinate out of bounds" );
+        ENSURE_ARG_OR_THROW( pos.Y >= 0 && pos.Y < aBmpSize.Height(),
+                             "Y coordinate out of bounds" );
+
+        // TODO(F2): Support alpha canvas here
+        return ::canvas::tools::colorToStdIntSequence(
+            rOutDev.GetPixel(
+                vcl::unotools::pointFromIntegerPoint2D( pos )));
+    }
+
+    rendering::IntegerBitmapLayout CanvasHelper::getMemoryLayout()
+    {
+        if( !mpOutDevProvider )
+            return rendering::IntegerBitmapLayout(); // we're disposed
+
+        rendering::IntegerBitmapLayout aBitmapLayout( ::canvas::tools::getStdMemoryLayout(getSize()) );
+        if ( !mbHaveAlpha )
+            aBitmapLayout.ColorSpace = canvas::tools::getStdColorSpaceWithoutAlpha();
+
+        return aBitmapLayout;
+    }
+
+    int CanvasHelper::setupOutDevState( const rendering::ViewState&     viewState,
+                                        const rendering::RenderState&   renderState,
+                                        ColorType                       eColorType ) const
+    {
+        ENSURE_OR_THROW( mpOutDevProvider,
+                         "outdev null. Are we disposed?" );
+
+        ::canvas::tools::verifyInput( renderState,
+                                      __func__,
+                                      mpDevice,
+                                      2,
+                                      eColorType == IGNORE_COLOR ? 0 : 3 );
+
+        OutputDevice& rOutDev( mpOutDevProvider->getOutDev() );
+        OutputDevice* p2ndOutDev = nullptr;
+
+        rOutDev.EnableMapMode( false );
+        rOutDev.SetAntialiasing( AntialiasingFlags::Enable );
+
+        if( mp2ndOutDevProvider )
+            p2ndOutDev = &mp2ndOutDevProvider->getOutDev();
+
+        int nAlpha(255);
+
+        // TODO(P2): Don't change clipping all the time, maintain current clip
+        // state and change only when update is necessary
+        ::canvas::tools::clipOutDev(viewState, renderState, rOutDev, p2ndOutDev);
+
+        Color aColor( COL_WHITE );
+
+        if( renderState.DeviceColor.getLength() > 2 )
+        {
+            aColor = vcl::unotools::stdColorSpaceSequenceToColor(
+                renderState.DeviceColor );
+        }
+
+        // extract alpha, and make color opaque
+        // afterwards. Otherwise, OutputDevice won't draw anything
+        nAlpha = aColor.GetAlpha();
+        aColor.SetAlpha(255);
+
+        if( eColorType != IGNORE_COLOR )
+        {
+            switch( eColorType )
+            {
+                case LINE_COLOR:
+                    rOutDev.SetLineColor( aColor );
+                    rOutDev.SetFillColor();
+
+                    if( p2ndOutDev )
+                    {
+                        p2ndOutDev->SetLineColor( aColor );
+                        p2ndOutDev->SetFillColor();
+                    }
+                    break;
+
+                case FILL_COLOR:
+                    rOutDev.SetFillColor( aColor );
+                    rOutDev.SetLineColor();
+
+                    if( p2ndOutDev )
+                    {
+                        p2ndOutDev->SetFillColor( aColor );
+                        p2ndOutDev->SetLineColor();
+                    }
+                    break;
+
+                case TEXT_COLOR:
+                    rOutDev.SetTextColor( aColor );
+
+                    if( p2ndOutDev )
+                        p2ndOutDev->SetTextColor( aColor );
+                    break;
+
+                default:
+                    ENSURE_OR_THROW( false,
+                                     "Unexpected color type");
+                    break;
+            }
+        }
+
+        return nAlpha;
+    }
+
+    bool CanvasHelper::setupTextOutput( ::Point&                                        o_rOutPos,
+                                        const rendering::ViewState&                     viewState,
+                                        const rendering::RenderState&                   renderState,
+                                        const uno::Reference< rendering::XCanvasFont >& xFont   ) const
+    {
+        ENSURE_OR_THROW( mpOutDevProvider,
+                         "outdev null. Are we disposed?" );
+
+        OutputDevice& rOutDev( mpOutDevProvider->getOutDev() );
+
+        setupOutDevState( viewState, renderState, TEXT_COLOR );
+
+        CanvasFont* pFont = dynamic_cast< CanvasFont* >( xFont.get() );
+
+        ENSURE_ARG_OR_THROW( pFont,
+                             "Font not compatible with this canvas" );
+
+        vcl::Font aVCLFont = pFont->getVCLFont();
+
+        Color aColor( COL_BLACK );
+
+        if( renderState.DeviceColor.getLength() > 2 )
+        {
+            aColor = vcl::unotools::stdColorSpaceSequenceToColor(
+                renderState.DeviceColor );
+        }
+
+        // setup font color
+        aVCLFont.SetColor( aColor );
+        aVCLFont.SetFillColor( aColor );
+
+        // no need to replicate this for mp2ndOutDev, we're modifying only aVCLFont here.
+        if( !tools::setupFontTransform( o_rOutPos, aVCLFont, viewState, renderState, rOutDev ) )
+            return false;
+
+        rOutDev.SetFont( aVCLFont );
+
+        if( mp2ndOutDevProvider )
+            mp2ndOutDevProvider->getOutDev().SetFont( aVCLFont );
+
+        return true;
+    }
+
+    bool CanvasHelper::repaint( const GraphicObjectSharedPtr&   rGrf,
+                                const rendering::ViewState&     viewState,
+                                const rendering::RenderState&   renderState,
+                                const ::Point&                  rPt,
+                                const ::Size&                   rSz,
+                                const GraphicAttr&              rAttr ) const
+    {
+        ENSURE_OR_RETURN_FALSE( rGrf,
+                          "Invalid Graphic" );
+
+        if( !mpOutDevProvider )
+            return false; // disposed
+        else
+        {
+            tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDevProvider );
+            setupOutDevState( viewState, renderState, IGNORE_COLOR );
+
+            if (!rGrf->Draw(mpOutDevProvider->getOutDev(), rPt, rSz, &rAttr))
+                return false;
+
+            // #i80779# Redraw also into mask outdev
+            if (mp2ndOutDevProvider)
+                return rGrf->Draw(mp2ndOutDevProvider->getOutDev(), rPt, rSz, &rAttr);
+
+            return true;
+        }
+    }
+
+    void CanvasHelper::flush() const
+    {
+        if (mpOutDevProvider)
+            mpOutDevProvider->getOutDev().Flush();
+
+        if  (mp2ndOutDevProvider)
+            mp2ndOutDevProvider->getOutDev().Flush();
+    }
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/canvashelper.hxx b/canvas/source/vcl/canvashelper.hxx
new file mode 100644
index 000000000..ba385110b
--- /dev/null
+++ b/canvas/source/vcl/canvashelper.hxx
@@ -0,0 +1,309 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <com/sun/star/geometry/IntegerPoint2D.hpp>
+#include <com/sun/star/geometry/IntegerRectangle2D.hpp>
+#include <com/sun/star/rendering/IntegerBitmapLayout.hpp>
+#include <com/sun/star/rendering/XCanvas.hpp>
+
+#include "cachedbitmap.hxx"
+#include "outdevprovider.hxx"
+
+
+namespace vclcanvas
+{
+    class SpriteCanvas;
+
+    /** Helper class for basic canvas functionality. Also offers
+        optional backbuffer painting, when providing it with a second
+        OutputDevice to render into.
+     */
+    class CanvasHelper
+    {
+    public:
+        /** Create canvas helper
+         */
+        CanvasHelper();
+
+        /// make noncopyable
+        CanvasHelper(const CanvasHelper&) = delete;
+        const CanvasHelper& operator=(const CanvasHelper&) = delete;
+
+        /// Release all references
+        void disposing();
+
+        /** Initialize canvas helper
+
+            This method late-initializes the canvas helper, providing
+            it with the necessary device and output objects. Note that
+            the CanvasHelper does <em>not</em> take ownership of the
+            passed rDevice reference, nor does it perform any
+            reference counting. Thus, to prevent the reference counted
+            SpriteCanvas object from deletion, the user of this class
+            is responsible for holding ref-counted references itself!
+
+            @param rDevice
+            Reference device this canvas is associated with
+
+            @param rOutDev
+            Set primary output device for this canvas. That's where
+            all content is output to.
+
+            @param bProtect
+            When true, all output operations preserve outdev
+            state. When false, outdev state might change at any time.
+
+            @param bHaveAlpha
+            When true, hasAlpha() will always return true, otherwise, false.
+         */
+        void init( css::rendering::XGraphicDevice&              rDevice,
+                   const OutDevProviderSharedPtr&               rOutDev,
+                   bool                                         bProtect,
+                   bool                                         bHaveAlpha );
+
+        /** Set primary output device
+
+            This changes the primary output device, where rendering is
+            sent to.
+         */
+        void setOutDev( const OutDevProviderSharedPtr&  rOutDev,
+                        bool                            bProtect);
+
+        /** Set secondary output device
+
+            Used for sprites, to generate mask bitmap.
+         */
+        void setBackgroundOutDev( const OutDevProviderSharedPtr& rOutDev );
+
+
+        // CanvasHelper functionality
+        // ==========================
+
+        // XCanvas (only providing, not implementing the
+        // interface. Also note subtle method parameter differences)
+        void clear();
+        void drawLine( const css::rendering::XCanvas*      rCanvas,
+                       const css::geometry::RealPoint2D&   aStartPoint,
+                       const css::geometry::RealPoint2D&   aEndPoint,
+                       const css::rendering::ViewState&    viewState,
+                       const css::rendering::RenderState&  renderState );
+        void drawBezier( const css::rendering::XCanvas*            rCanvas,
+                         const css::geometry::RealBezierSegment2D& aBezierSegment,
+                         const css::geometry::RealPoint2D&         aEndPoint,
+                         const css::rendering::ViewState&          viewState,
+                         const css::rendering::RenderState&        renderState );
+        css::uno::Reference< css::rendering::XCachedPrimitive >
+            drawPolyPolygon( const css::rendering::XCanvas*        rCanvas,
+                             const css::uno::Reference<
+                                 css::rendering::XPolyPolygon2D >&     xPolyPolygon,
+                             const css::rendering::ViewState&      viewState,
+                             const css::rendering::RenderState&    renderState );
+        css::uno::Reference< css::rendering::XCachedPrimitive >
+            strokePolyPolygon( const css::rendering::XCanvas*          rCanvas,
+                               const css::uno::Reference<
+                                       css::rendering::XPolyPolygon2D >&   xPolyPolygon,
+                               const css::rendering::ViewState&        viewState,
+                               const css::rendering::RenderState&      renderState,
+                               const css::rendering::StrokeAttributes& strokeAttributes );
+        css::uno::Reference< css::rendering::XCachedPrimitive >
+            strokeTexturedPolyPolygon( const css::rendering::XCanvas*          rCanvas,
+                                       const css::uno::Reference<
+                                               css::rendering::XPolyPolygon2D >&   xPolyPolygon,
+                                       const css::rendering::ViewState&        viewState,
+                                       const css::rendering::RenderState&      renderState,
+                                       const css::uno::Sequence<
+                                               css::rendering::Texture >&      textures,
+                                       const css::rendering::StrokeAttributes& strokeAttributes );
+        css::uno::Reference< css::rendering::XCachedPrimitive >
+            strokeTextureMappedPolyPolygon( const css::rendering::XCanvas*             rCanvas,
+                                            const css::uno::Reference<
+                                                    css::rendering::XPolyPolygon2D >&  xPolyPolygon,
+                                            const css::rendering::ViewState&           viewState,
+                                            const css::rendering::RenderState&         renderState,
+                                            const css::uno::Sequence<
+                                                    css::rendering::Texture >&         textures,
+                                            const css::uno::Reference<
+                                                    css::geometry::XMapping2D >&       xMapping,
+                                            const css::rendering::StrokeAttributes&    strokeAttributes );
+        css::uno::Reference< css::rendering::XPolyPolygon2D >
+            queryStrokeShapes( const css::rendering::XCanvas*          rCanvas,
+                               const css::uno::Reference<
+                                       css::rendering::XPolyPolygon2D >&   xPolyPolygon,
+                               const css::rendering::ViewState&        viewState,
+                               const css::rendering::RenderState&      renderState,
+                               const css::rendering::StrokeAttributes& strokeAttributes );
+        css::uno::Reference< css::rendering::XCachedPrimitive >
+            fillPolyPolygon( const css::rendering::XCanvas*            rCanvas,
+                             const css::uno::Reference<
+                                     css::rendering::XPolyPolygon2D >&     xPolyPolygon,
+                             const css::rendering::ViewState&          viewState,
+                             const css::rendering::RenderState&        renderState );
+        css::uno::Reference< css::rendering::XCachedPrimitive >
+            fillTexturedPolyPolygon( const css::rendering::XCanvas*            rCanvas,
+                                     const css::uno::Reference<
+                                             css::rendering::XPolyPolygon2D >& xPolyPolygon,
+                                     const css::rendering::ViewState&          viewState,
+                                     const css::rendering::RenderState&        renderState,
+                                     const css::uno::Sequence<
+                                             css::rendering::Texture >&        textures );
+        css::uno::Reference< css::rendering::XCachedPrimitive >
+            fillTextureMappedPolyPolygon( const css::rendering::XCanvas*           rCanvas,
+                                          const css::uno::Reference<
+                                                  css::rendering::XPolyPolygon2D >&    xPolyPolygon,
+                                          const css::rendering::ViewState&         viewState,
+                                          const css::rendering::RenderState&       renderState,
+                                          const css::uno::Sequence<
+                                                  css::rendering::Texture >&       textures,
+                                          const css::uno::Reference<
+                                                  css::geometry::XMapping2D >&         xMapping );
+
+        css::uno::Reference< css::rendering::XCanvasFont >
+            createFont( const css::rendering::XCanvas*         rCanvas,
+                        const css::rendering::FontRequest&     fontRequest,
+                        const css::uno::Sequence<
+                            css::beans::PropertyValue >&       extraFontProperties,
+                        const css::geometry::Matrix2D&         fontMatrix );
+
+        css::uno::Sequence< css::rendering::FontInfo >
+            queryAvailableFonts( const css::rendering::XCanvas*        rCanvas,
+                                 const css::rendering::FontInfo&       aFilter,
+                                 const css::uno::Sequence<
+                                         css::beans::PropertyValue >&  aFontProperties );
+
+        css::uno::Reference< css::rendering::XCachedPrimitive >
+            drawText( const css::rendering::XCanvas*       rCanvas,
+                      const css::rendering::StringContext& text,
+                      const css::uno::Reference<
+                              css::rendering::XCanvasFont >& xFont,
+                      const css::rendering::ViewState&     viewState,
+                      const css::rendering::RenderState&   renderState,
+                      sal_Int8                                          textDirection );
+
+        css::uno::Reference< css::rendering::XCachedPrimitive >
+            drawTextLayout( const css::rendering::XCanvas*         rCanvas,
+                            const css::uno::Reference<
+                                    css::rendering::XTextLayout >& laidOutText,
+                            const css::rendering::ViewState&       viewState,
+                            const css::rendering::RenderState&     renderState );
+
+        css::uno::Reference< css::rendering::XCachedPrimitive >
+            drawBitmap( const css::rendering::XCanvas*     rCanvas,
+                        const css::uno::Reference<
+                                css::rendering::XBitmap >& xBitmap,
+                        const css::rendering::ViewState&   viewState,
+                        const css::rendering::RenderState& renderState );
+        css::uno::Reference< css::rendering::XCachedPrimitive >
+            drawBitmapModulated( const css::rendering::XCanvas*        rCanvas,
+                                 const css::uno::Reference<
+                                         css::rendering::XBitmap >&        xBitmap,
+                                 const css::rendering::ViewState&      viewState,
+                                 const css::rendering::RenderState&    renderState );
+        // cast away const, need to change refcount (as this is
+        // ~invisible to client code, still logically const)
+        css::uno::Reference< css::rendering::XGraphicDevice >
+            getDevice() { return css::uno::Reference< css::rendering::XGraphicDevice >(mpDevice); }
+
+
+        // BitmapCanvasHelper functionality
+        // ================================
+
+        css::geometry::IntegerSize2D getSize();
+
+        css::uno::Reference< css::rendering::XBitmap >
+            getScaledBitmap( const css::geometry::RealSize2D&  newSize,
+                             bool                              beFast );
+
+        css::uno::Sequence< sal_Int8 >
+            getData( css::rendering::IntegerBitmapLayout&      bitmapLayout,
+                     const css::geometry::IntegerRectangle2D&  rect );
+
+        css::uno::Sequence< sal_Int8 >
+            getPixel( css::rendering::IntegerBitmapLayout& bitmapLayout,
+                      const css::geometry::IntegerPoint2D& pos );
+
+        css::rendering::IntegerBitmapLayout getMemoryLayout();
+
+        /// Repaint a cached bitmap
+        bool repaint( const GraphicObjectSharedPtr&                   rGrf,
+                      const css::rendering::ViewState&                viewState,
+                      const css::rendering::RenderState&              renderState,
+                      const ::Point&                                  rPt,
+                      const ::Size&                                   rSz,
+                      const GraphicAttr&                              rAttr ) const;
+
+        /** Flush drawing queue.
+
+            This only works for Window canvases, and ensures that all
+            pending render operations are flushed to the
+            driver/hardware.
+         */
+        void flush() const;
+
+        enum ColorType
+        {
+            LINE_COLOR, FILL_COLOR, TEXT_COLOR, IGNORE_COLOR
+        };
+
+        // returns alpha of color
+        int setupOutDevState( const css::rendering::ViewState&     viewState,
+                              const css::rendering::RenderState&   renderState,
+                              ColorType                            eColorType ) const;
+
+        bool hasAlpha() const { return mbHaveAlpha; }
+
+    protected:
+        /** Phyical output device
+
+            Deliberately not a refcounted reference, because of
+            potential circular references for spritecanvas.
+         */
+        css::rendering::XGraphicDevice*              mpDevice;
+
+        /// Rendering to this outdev preserves its state
+        OutDevProviderSharedPtr                      mpProtectedOutDevProvider;
+
+        /// Rendering to this outdev does not preserve its state
+        OutDevProviderSharedPtr                      mpOutDevProvider;
+
+        /// Rendering to this outdev does not preserve its state
+        OutDevProviderSharedPtr                      mp2ndOutDevProvider;
+
+        /// When true, content is able to represent alpha
+        bool                                         mbHaveAlpha;
+
+    private:
+        css::uno::Reference< css::rendering::XCachedPrimitive >
+            implDrawBitmap( const css::rendering::XCanvas*     rCanvas,
+                            const css::uno::Reference<
+                                    css::rendering::XBitmap >&     xBitmap,
+                            const css::rendering::ViewState&   viewState,
+                            const css::rendering::RenderState& renderState,
+                            bool                                            bModulateColors );
+
+        bool setupTextOutput( ::Point&                                                                              o_rOutPos,
+                              const css::rendering::ViewState&                                         viewState,
+                              const css::rendering::RenderState&                                       renderState,
+                              const css::uno::Reference< css::rendering::XCanvasFont >&   xFont ) const;
+
+    };
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/canvashelper_texturefill.cxx b/canvas/source/vcl/canvashelper_texturefill.cxx
new file mode 100644
index 000000000..fa8b97395
--- /dev/null
+++ b/canvas/source/vcl/canvashelper_texturefill.cxx
@@ -0,0 +1,1088 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <cstdlib>
+#include <tuple>
+
+#include <basegfx/matrix/b2dhommatrix.hxx>
+#include <basegfx/numeric/ftools.hxx>
+#include <basegfx/point/b2dpoint.hxx>
+#include <basegfx/polygon/b2dpolygon.hxx>
+#include <basegfx/polygon/b2dpolygontools.hxx>
+#include <basegfx/range/b2drectangle.hxx>
+#include <basegfx/utils/canvastools.hxx>
+#include <basegfx/utils/keystoplerp.hxx>
+#include <basegfx/utils/lerp.hxx>
+#include <basegfx/utils/tools.hxx>
+#include <com/sun/star/rendering/TexturingMode.hpp>
+#include <rtl/math.hxx>
+#include <tools/diagnose_ex.h>
+#include <tools/poly.hxx>
+#include <vcl/bitmapex.hxx>
+#include <vcl/canvastools.hxx>
+#include <vcl/virdev.hxx>
+#include <vcl/gradient.hxx>
+
+#include <canvas/canvastools.hxx>
+#include <parametricpolypolygon.hxx>
+
+#include "canvashelper.hxx"
+#include "impltools.hxx"
+
+
+using namespace ::com::sun::star;
+
+namespace vclcanvas
+{
+    namespace
+    {
+        bool textureFill( OutputDevice&         rOutDev,
+                          const GraphicObject&  rGraphic,
+                          const ::Point&        rPosPixel,
+                          const ::Size&         rNextTileX,
+                          const ::Size&         rNextTileY,
+                          sal_Int32             nTilesX,
+                          sal_Int32             nTilesY,
+                          const ::Size&         rTileSize,
+                          const GraphicAttr&    rAttr)
+        {
+            bool bRet( false );
+            Point   aCurrPos;
+            int     nX, nY;
+
+            for( nY=0; nY < nTilesY; ++nY )
+            {
+                aCurrPos.setX( rPosPixel.X() + nY*rNextTileY.Width() );
+                aCurrPos.setY( rPosPixel.Y() + nY*rNextTileY.Height() );
+
+                for( nX=0; nX < nTilesX; ++nX )
+                {
+                    // update return value. This method should return true, if
+                    // at least one of the looped Draws succeeded.
+                    bRet |= rGraphic.Draw(rOutDev,
+                                          aCurrPos,
+                                          rTileSize,
+                                          &rAttr);
+
+                    aCurrPos.AdjustX(rNextTileX.Width() );
+                    aCurrPos.AdjustY(rNextTileX.Height() );
+                }
+            }
+
+            return bRet;
+        }
+
+
+        /** Fill linear or axial gradient
+
+            Since most of the code for linear and axial gradients are
+            the same, we've a unified method here
+         */
+        void fillLinearGradient( OutputDevice&                                  rOutDev,
+                                 const ::basegfx::B2DHomMatrix&                 rTextureTransform,
+                                 const ::tools::Rectangle&                             rBounds,
+                                 unsigned int                                   nStepCount,
+                                 const ::canvas::ParametricPolyPolygon::Values& rValues,
+                                 const std::vector< ::Color >&                  rColors )
+        {
+            // determine general position of gradient in relation to
+            // the bound rect
+            // =====================================================
+
+            ::basegfx::B2DPoint aLeftTop( 0.0, 0.0 );
+            ::basegfx::B2DPoint aLeftBottom( 0.0, 1.0 );
+            ::basegfx::B2DPoint aRightTop( 1.0, 0.0 );
+            ::basegfx::B2DPoint aRightBottom( 1.0, 1.0 );
+
+            aLeftTop    *= rTextureTransform;
+            aLeftBottom *= rTextureTransform;
+            aRightTop   *= rTextureTransform;
+            aRightBottom*= rTextureTransform;
+
+            // calc length of bound rect diagonal
+            const ::basegfx::B2DVector aBoundRectDiagonal(
+                vcl::unotools::b2DPointFromPoint( rBounds.TopLeft() ) -
+                vcl::unotools::b2DPointFromPoint( rBounds.BottomRight() ) );
+            const double nDiagonalLength( aBoundRectDiagonal.getLength() );
+
+            // create direction of gradient:
+            //     _______
+            //     |  |  |
+            // ->  |  |  | ...
+            //     |  |  |
+            //     -------
+            ::basegfx::B2DVector aDirection( aRightTop - aLeftTop );
+            aDirection.normalize();
+
+            // now, we potentially have to enlarge our gradient area
+            // atop and below the transformed [0,1]x[0,1] unit rect,
+            // for the gradient to fill the complete bound rect.
+            ::basegfx::utils::infiniteLineFromParallelogram( aLeftTop,
+                                                             aLeftBottom,
+                                                             aRightTop,
+                                                             aRightBottom,
+                                                             vcl::unotools::b2DRectangleFromRectangle(rBounds) );
+
+
+            // render gradient
+            // ===============
+
+            // First try to use directly VCL's DrawGradient(), as that one is generally
+            // a better choice than here decomposing to polygons. The VCL API allows
+            // only 2 colors, but that should generally do.
+            // Do not use nStepCount, it limits optimized implementations, and it's computed
+            // by vclcanvas based on number of colors, so it's practically irrelevant.
+
+            // 2 colors and 2 stops (at 0 and 1) is a linear gradient:
+            if( rColors.size() == 2 && rValues.maStops.size() == 2 && rValues.maStops[0] == 0 && rValues.maStops[1] == 1)
+            {
+                // tdf#144073: Note that the code below adjusts the gradient area this way.
+                // No, I have no idea why.
+                aLeftTop -= 2.0*nDiagonalLength*aDirection;
+                aLeftBottom -= 2.0*nDiagonalLength*aDirection;
+                aRightTop += 2.0*nDiagonalLength*aDirection;
+                aRightBottom += 2.0*nDiagonalLength*aDirection;
+                Gradient vclGradient( GradientStyle::Linear, rColors[ 0 ], rColors[ 1 ] );
+                ::tools::Polygon aTempPoly( static_cast<sal_uInt16>(5) );
+                aTempPoly[0] = ::Point( ::basegfx::fround( aLeftTop.getX() ),
+                                        ::basegfx::fround( aLeftTop.getY() ) );
+                aTempPoly[1] = ::Point( ::basegfx::fround( aRightTop.getX() ),
+                                        ::basegfx::fround( aRightTop.getY() ) );
+                aTempPoly[2] = ::Point( ::basegfx::fround( aRightBottom.getX() ),
+                                        ::basegfx::fround( aRightBottom.getY() ) );
+                aTempPoly[3] = ::Point( ::basegfx::fround( aLeftBottom.getX() ),
+                                        ::basegfx::fround( aLeftBottom.getY() ) );
+                aTempPoly[4] = aTempPoly[0];
+                rOutDev.DrawGradient( aTempPoly, vclGradient );
+                return;
+            }
+            // 3 colors with first and last being equal and 3 stops (at 0, 0.5 and 1) is an axial gradient:
+            if( rColors.size() == 3 && rColors[ 0 ] == rColors[ 2 ]
+                && rValues.maStops.size() == 3 && rValues.maStops[0] == 0
+                && rValues.maStops[1] == 0.5 && rValues.maStops[2] == 1)
+            {
+                // tdf#144073: Note that the code below adjusts the gradient area this way.
+                // No, I have no idea why.
+                aLeftTop -= 2.0*nDiagonalLength*aDirection;
+                aLeftBottom -= 2.0*nDiagonalLength*aDirection;
+                aRightTop += 2.0*nDiagonalLength*aDirection;
+                aRightBottom += 2.0*nDiagonalLength*aDirection;
+                Gradient vclGradient( GradientStyle::Axial, rColors[ 1 ], rColors[ 0 ] );
+                ::tools::Polygon aTempPoly( static_cast<sal_uInt16>(5) );
+                aTempPoly[0] = ::Point( ::basegfx::fround( aLeftTop.getX() ),
+                                        ::basegfx::fround( aLeftTop.getY() ) );
+                aTempPoly[1] = ::Point( ::basegfx::fround( aRightTop.getX() ),
+                                        ::basegfx::fround( aRightTop.getY() ) );
+                aTempPoly[2] = ::Point( ::basegfx::fround( aRightBottom.getX() ),
+                                        ::basegfx::fround( aRightBottom.getY() ) );
+                aTempPoly[3] = ::Point( ::basegfx::fround( aLeftBottom.getX() ),
+                                        ::basegfx::fround( aLeftBottom.getY() ) );
+                aTempPoly[4] = aTempPoly[0];
+                rOutDev.DrawGradient( aTempPoly, vclGradient );
+                return;
+            }
+
+            // for linear gradients, it's easy to render
+            // non-overlapping polygons: just split the gradient into
+            // nStepCount small strips. Prepare the strip now.
+
+            // For performance reasons, we create a temporary VCL
+            // polygon here, keep it all the way and only change the
+            // vertex values in the loop below (as ::Polygon is a
+            // pimpl class, creating one every loop turn would really
+            // stress the mem allocator)
+            ::tools::Polygon aTempPoly( static_cast<sal_uInt16>(5) );
+
+            OSL_ENSURE( nStepCount >= 3,
+                        "fillLinearGradient(): stepcount smaller than 3" );
+
+
+            // fill initial strip (extending two times the bound rect's
+            // diagonal to the 'left'
+
+
+            // calculate left edge, by moving left edge of the
+            // gradient rect two times the bound rect's diagonal to
+            // the 'left'. Since we postpone actual rendering into the
+            // loop below, we set the _right_ edge here, which will be
+            // readily copied into the left edge in the loop below
+            const ::basegfx::B2DPoint& rPoint1( aLeftTop - 2.0*nDiagonalLength*aDirection );
+            aTempPoly[1] = ::Point( ::basegfx::fround( rPoint1.getX() ),
+                                    ::basegfx::fround( rPoint1.getY() ) );
+
+            const ::basegfx::B2DPoint& rPoint2( aLeftBottom - 2.0*nDiagonalLength*aDirection );
+            aTempPoly[2] = ::Point( ::basegfx::fround( rPoint2.getX() ),
+                                    ::basegfx::fround( rPoint2.getY() ) );
+
+
+            // iteratively render all other strips
+
+
+            // ensure that nStepCount matches color stop parity, to
+            // have a well-defined middle color e.g. for axial
+            // gradients.
+            if( (rColors.size() % 2) != (nStepCount % 2) )
+                ++nStepCount;
+
+            rOutDev.SetLineColor();
+
+            basegfx::utils::KeyStopLerp aLerper(rValues.maStops);
+
+            // only iterate nStepCount-1 steps, as the last strip is
+            // explicitly painted below
+            for( unsigned int i=0; i<nStepCount-1; ++i )
+            {
+                std::ptrdiff_t nIndex;
+                double fAlpha;
+                std::tie(nIndex,fAlpha)=aLerper.lerp(double(i)/nStepCount);
+
+                rOutDev.SetFillColor(
+                    Color( static_cast<sal_uInt8>(basegfx::utils::lerp(rColors[nIndex].GetRed(),rColors[nIndex+1].GetRed(),fAlpha)),
+                           static_cast<sal_uInt8>(basegfx::utils::lerp(rColors[nIndex].GetGreen(),rColors[nIndex+1].GetGreen(),fAlpha)),
+                           static_cast<sal_uInt8>(basegfx::utils::lerp(rColors[nIndex].GetBlue(),rColors[nIndex+1].GetBlue(),fAlpha)) ));
+
+                // copy right edge of polygon to left edge (and also
+                // copy the closing point)
+                aTempPoly[0] = aTempPoly[4] = aTempPoly[1];
+                aTempPoly[3] = aTempPoly[2];
+
+                // calculate new right edge, from interpolating
+                // between start and end line. Note that i is
+                // increased by one, to account for the fact that we
+                // calculate the right border here (whereas the fill
+                // color is governed by the left edge)
+                const ::basegfx::B2DPoint& rPoint3(
+                    (nStepCount - i-1)/double(nStepCount)*aLeftTop +
+                    (i+1)/double(nStepCount)*aRightTop );
+                aTempPoly[1] = ::Point( ::basegfx::fround( rPoint3.getX() ),
+                                        ::basegfx::fround( rPoint3.getY() ) );
+
+                const ::basegfx::B2DPoint& rPoint4(
+                    (nStepCount - i-1)/double(nStepCount)*aLeftBottom +
+                    (i+1)/double(nStepCount)*aRightBottom );
+                aTempPoly[2] = ::Point( ::basegfx::fround( rPoint4.getX() ),
+                                        ::basegfx::fround( rPoint4.getY() ) );
+
+                rOutDev.DrawPolygon( aTempPoly );
+            }
+
+            // fill final strip (extending two times the bound rect's
+            // diagonal to the 'right'
+
+
+            // copy right edge of polygon to left edge (and also
+            // copy the closing point)
+            aTempPoly[0] = aTempPoly[4] = aTempPoly[1];
+            aTempPoly[3] = aTempPoly[2];
+
+            // calculate new right edge, by moving right edge of the
+            // gradient rect two times the bound rect's diagonal to
+            // the 'right'.
+            const ::basegfx::B2DPoint& rPoint3( aRightTop + 2.0*nDiagonalLength*aDirection );
+            aTempPoly[0] = aTempPoly[4] = ::Point( ::basegfx::fround( rPoint3.getX() ),
+                                                   ::basegfx::fround( rPoint3.getY() ) );
+
+            const ::basegfx::B2DPoint& rPoint4( aRightBottom + 2.0*nDiagonalLength*aDirection );
+            aTempPoly[3] = ::Point( ::basegfx::fround( rPoint4.getX() ),
+                                    ::basegfx::fround( rPoint4.getY() ) );
+
+            rOutDev.SetFillColor( rColors.back() );
+
+            rOutDev.DrawPolygon( aTempPoly );
+        }
+
+        void fillPolygonalGradient( OutputDevice&                                  rOutDev,
+                                    const ::basegfx::B2DHomMatrix&                 rTextureTransform,
+                                    const ::tools::Rectangle&                             rBounds,
+                                    unsigned int                                   nStepCount,
+                                    const ::canvas::ParametricPolyPolygon::Values& rValues,
+                                    const std::vector< ::Color >&                  rColors )
+        {
+            const ::basegfx::B2DPolygon& rGradientPoly( rValues.maGradientPoly );
+
+            ENSURE_OR_THROW( rGradientPoly.count() > 2,
+                              "fillPolygonalGradient(): polygon without area given" );
+
+            // For performance reasons, we create a temporary VCL polygon
+            // here, keep it all the way and only change the vertex values
+            // in the loop below (as ::Polygon is a pimpl class, creating
+            // one every loop turn would really stress the mem allocator)
+            ::basegfx::B2DPolygon   aOuterPoly( rGradientPoly );
+            ::basegfx::B2DPolygon   aInnerPoly;
+
+            // subdivide polygon _before_ rendering, would otherwise have
+            // to be performed on every loop turn.
+            if( aOuterPoly.areControlPointsUsed() )
+                aOuterPoly = ::basegfx::utils::adaptiveSubdivideByAngle(aOuterPoly);
+
+            aInnerPoly = aOuterPoly;
+
+            // only transform outer polygon _after_ copying it into
+            // aInnerPoly, because inner polygon has to be scaled before
+            // the actual texture transformation takes place
+            aOuterPoly.transform( rTextureTransform );
+
+            // determine overall transformation for inner polygon (might
+            // have to be prefixed by anisotrophic scaling)
+            ::basegfx::B2DHomMatrix aInnerPolygonTransformMatrix;
+
+
+            // apply scaling (possibly anisotrophic) to inner polygon
+
+
+            // scale inner polygon according to aspect ratio: for
+            // wider-than-tall bounds (nAspectRatio > 1.0), the inner
+            // polygon, representing the gradient focus, must have
+            // non-zero width. Specifically, a bound rect twice as wide as
+            // tall has a focus polygon of half its width.
+            const double nAspectRatio( rValues.mnAspectRatio );
+            if( nAspectRatio > 1.0 )
+            {
+                // width > height case
+                aInnerPolygonTransformMatrix.scale( 1.0 - 1.0/nAspectRatio,
+                                                    0.0 );
+            }
+            else if( nAspectRatio < 1.0 )
+            {
+                // width < height case
+                aInnerPolygonTransformMatrix.scale( 0.0,
+                                                    1.0 - nAspectRatio );
+            }
+            else
+            {
+                // isotrophic case
+                aInnerPolygonTransformMatrix.scale( 0.0, 0.0 );
+            }
+
+            // and finally, add texture transform to it.
+            aInnerPolygonTransformMatrix *= rTextureTransform;
+
+            // apply final matrix to polygon
+            aInnerPoly.transform( aInnerPolygonTransformMatrix );
+
+
+            const sal_uInt32 nNumPoints( aOuterPoly.count() );
+            ::tools::Polygon aTempPoly( static_cast<sal_uInt16>(nNumPoints+1) );
+
+            // increase number of steps by one: polygonal gradients have
+            // the outermost polygon rendered in rColor2, and the
+            // innermost in rColor1. The innermost polygon will never
+            // have zero area, thus, we must divide the interval into
+            // nStepCount+1 steps. For example, to create 3 steps:
+
+            // |                       |
+            // |-------|-------|-------|
+            // |                       |
+            // 3       2       1       0
+
+            // This yields 4 tick marks, where 0 is never attained (since
+            // zero-area polygons typically don't display perceivable
+            // color).
+            ++nStepCount;
+
+            rOutDev.SetLineColor();
+
+            basegfx::utils::KeyStopLerp aLerper(rValues.maStops);
+
+            // fill background
+            rOutDev.SetFillColor( rColors.front() );
+            rOutDev.DrawRect( rBounds );
+
+            // render polygon
+            // ==============
+
+            for( unsigned int i=1,p; i<nStepCount; ++i )
+            {
+                const double fT( i/double(nStepCount) );
+
+                std::ptrdiff_t nIndex;
+                double fAlpha;
+                std::tie(nIndex,fAlpha)=aLerper.lerp(fT);
+
+                // lerp color
+                rOutDev.SetFillColor(
+                    Color( static_cast<sal_uInt8>(basegfx::utils::lerp(rColors[nIndex].GetRed(),rColors[nIndex+1].GetRed(),fAlpha)),
+                           static_cast<sal_uInt8>(basegfx::utils::lerp(rColors[nIndex].GetGreen(),rColors[nIndex+1].GetGreen(),fAlpha)),
+                           static_cast<sal_uInt8>(basegfx::utils::lerp(rColors[nIndex].GetBlue(),rColors[nIndex+1].GetBlue(),fAlpha)) ));
+
+                // scale and render polygon, by interpolating between
+                // outer and inner polygon.
+
+                for( p=0; p<nNumPoints; ++p )
+                {
+                    const ::basegfx::B2DPoint& rOuterPoint( aOuterPoly.getB2DPoint(p) );
+                    const ::basegfx::B2DPoint& rInnerPoint( aInnerPoly.getB2DPoint(p) );
+
+                    aTempPoly[static_cast<sal_uInt16>(p)] = ::Point(
+                        basegfx::fround( fT*rInnerPoint.getX() + (1-fT)*rOuterPoint.getX() ),
+                        basegfx::fround( fT*rInnerPoint.getY() + (1-fT)*rOuterPoint.getY() ) );
+                }
+
+                // close polygon explicitly
+                aTempPoly[static_cast<sal_uInt16>(p)] = aTempPoly[0];
+
+                // TODO(P1): compare with vcl/source/gdi/outdev4.cxx,
+                // OutputDevice::ImplDrawComplexGradient(), there's a note
+                // that on some VDev's, rendering disjunct poly-polygons
+                // is faster!
+                rOutDev.DrawPolygon( aTempPoly );
+            }
+        }
+
+        void doGradientFill( OutputDevice&                                  rOutDev,
+                             const ::canvas::ParametricPolyPolygon::Values& rValues,
+                             const std::vector< ::Color >&                  rColors,
+                             const ::basegfx::B2DHomMatrix&                 rTextureTransform,
+                             const ::tools::Rectangle&                      rBounds,
+                             unsigned int                                   nStepCount )
+        {
+            switch( rValues.meType )
+            {
+                case ::canvas::ParametricPolyPolygon::GradientType::Linear:
+                    fillLinearGradient( rOutDev,
+                                        rTextureTransform,
+                                        rBounds,
+                                        nStepCount,
+                                        rValues,
+                                        rColors );
+                    break;
+
+                case ::canvas::ParametricPolyPolygon::GradientType::Elliptical:
+                case ::canvas::ParametricPolyPolygon::GradientType::Rectangular:
+                    fillPolygonalGradient( rOutDev,
+                                           rTextureTransform,
+                                           rBounds,
+                                           nStepCount,
+                                           rValues,
+                                           rColors );
+                    break;
+
+                default:
+                    ENSURE_OR_THROW( false,
+                                      "CanvasHelper::doGradientFill(): Unexpected case" );
+            }
+        }
+
+        int numColorSteps( const ::Color& rColor1, const ::Color& rColor2 )
+        {
+            return std::max(
+                std::abs( rColor1.GetRed() - rColor2.GetRed() ),
+                std::max(
+                    std::abs( rColor1.GetGreen() - rColor2.GetGreen() ),
+                    std::abs( rColor1.GetBlue()  - rColor2.GetBlue() ) ) );
+        }
+
+        bool gradientFill( OutputDevice&                                   rOutDev,
+                           OutputDevice*                                   p2ndOutDev,
+                           const ::canvas::ParametricPolyPolygon::Values&  rValues,
+                           const std::vector< ::Color >&                   rColors,
+                           const ::tools::PolyPolygon&                     rPoly,
+                           const rendering::ViewState&                     viewState,
+                           const rendering::RenderState&                   renderState,
+                           const rendering::Texture&                       texture,
+                           int                                             nTransparency )
+        {
+            // TODO(T2): It is maybe necessary to lock here, should
+            // maGradientPoly someday cease to be const. But then, beware of
+            // deadlocks, canvashelper calls this method with locked own
+            // mutex.
+
+            // calc step size
+
+            int nColorSteps = 0;
+            for( size_t i=0; i<rColors.size()-1; ++i )
+                nColorSteps += numColorSteps(rColors[i],rColors[i+1]);
+
+            ::basegfx::B2DHomMatrix aTotalTransform;
+            const int nStepCount=
+                ::canvas::tools::calcGradientStepCount(aTotalTransform,
+                                                       viewState,
+                                                       renderState,
+                                                       texture,
+                                                       nColorSteps);
+
+            rOutDev.SetLineColor();
+
+            // determine maximal bound rect of texture-filled
+            // polygon
+            const ::tools::Rectangle aPolygonDeviceRectOrig(
+                rPoly.GetBoundRect() );
+
+            if( tools::isRectangle( rPoly ) )
+            {
+                // use optimized output path
+
+
+                // this distinction really looks like a
+                // micro-optimization, but in fact greatly speeds up
+                // especially complex gradients. That's because when using
+                // clipping, we can output polygons instead of
+                // poly-polygons, and don't have to output the gradient
+                // twice for XOR
+
+                rOutDev.Push( vcl::PushFlags::CLIPREGION );
+                rOutDev.IntersectClipRegion( aPolygonDeviceRectOrig );
+                doGradientFill( rOutDev,
+                                rValues,
+                                rColors,
+                                aTotalTransform,
+                                aPolygonDeviceRectOrig,
+                                nStepCount );
+                rOutDev.Pop();
+
+                if( p2ndOutDev && nTransparency < 253 )
+                {
+                    // HACK. Normally, CanvasHelper does not care about
+                    // actually what mp2ndOutDev is...  well, here we do &
+                    // assume a 1bpp target - everything beyond 97%
+                    // transparency is fully transparent
+                    p2ndOutDev->SetFillColor( COL_BLACK );
+                    p2ndOutDev->DrawRect( aPolygonDeviceRectOrig );
+                }
+            }
+            else
+            {
+                const vcl::Region aPolyClipRegion( rPoly );
+
+                rOutDev.Push( vcl::PushFlags::CLIPREGION );
+                rOutDev.IntersectClipRegion( aPolyClipRegion );
+
+                doGradientFill( rOutDev,
+                                rValues,
+                                rColors,
+                                aTotalTransform,
+                                aPolygonDeviceRectOrig,
+                                nStepCount );
+                rOutDev.Pop();
+
+                if( p2ndOutDev && nTransparency < 253 )
+                {
+                    // HACK. Normally, CanvasHelper does not care about
+                    // actually what mp2ndOutDev is...  well, here we do &
+                    // assume a 1bpp target - everything beyond 97%
+                    // transparency is fully transparent
+                    p2ndOutDev->SetFillColor( COL_BLACK );
+                    p2ndOutDev->DrawPolyPolygon( rPoly );
+                }
+            }
+
+#ifdef DEBUG_CANVAS_CANVASHELPER_TEXTUREFILL
+            // extra-verbosity
+            {
+                ::basegfx::B2DRectangle aRect(0.0, 0.0, 1.0, 1.0);
+                ::basegfx::B2DRectangle aTextureDeviceRect;
+                ::basegfx::B2DHomMatrix aTextureTransform;
+                ::canvas::tools::calcTransformedRectBounds( aTextureDeviceRect,
+                                                            aRect,
+                                                            aTextureTransform );
+                rOutDev.SetLineColor( COL_RED );
+                rOutDev.SetFillColor();
+                rOutDev.DrawRect( vcl::unotools::rectangleFromB2DRectangle( aTextureDeviceRect ) );
+
+                rOutDev.SetLineColor( COL_BLUE );
+                ::tools::Polygon aPoly1(
+                    vcl::unotools::rectangleFromB2DRectangle( aRect ));
+                ::basegfx::B2DPolygon aPoly2( aPoly1.getB2DPolygon() );
+                aPoly2.transform( aTextureTransform );
+                ::tools::Polygon aPoly3( aPoly2 );
+                rOutDev.DrawPolygon( aPoly3 );
+            }
+#endif
+
+            return true;
+        }
+    }
+
+    uno::Reference< rendering::XCachedPrimitive > CanvasHelper::fillTexturedPolyPolygon( const rendering::XCanvas*                          pCanvas,
+                                                                                         const uno::Reference< rendering::XPolyPolygon2D >& xPolyPolygon,
+                                                                                         const rendering::ViewState&                        viewState,
+                                                                                         const rendering::RenderState&                      renderState,
+                                                                                         const uno::Sequence< rendering::Texture >&         textures )
+    {
+        ENSURE_ARG_OR_THROW( xPolyPolygon.is(),
+                         "CanvasHelper::fillPolyPolygon(): polygon is NULL");
+        ENSURE_ARG_OR_THROW( textures.hasElements(),
+                         "CanvasHelper::fillTexturedPolyPolygon: empty texture sequence");
+
+        if( mpOutDevProvider )
+        {
+            tools::OutDevStateKeeper aStateKeeper( mpProtectedOutDevProvider );
+
+            const int nTransparency( setupOutDevState( viewState, renderState, IGNORE_COLOR ) );
+            ::tools::PolyPolygon aPolyPoly( tools::mapPolyPolygon(
+                                       ::basegfx::unotools::b2DPolyPolygonFromXPolyPolygon2D(xPolyPolygon),
+                                       viewState, renderState ) );
+
+            // TODO(F1): Multi-texturing
+            if( textures[0].Gradient.is() )
+            {
+                // try to cast XParametricPolyPolygon2D reference to
+                // our implementation class.
+                ::canvas::ParametricPolyPolygon* pGradient =
+                      dynamic_cast< ::canvas::ParametricPolyPolygon* >( textures[0].Gradient.get() );
+
+                if( pGradient && pGradient->getValues().maColors.hasElements() )
+                {
+                    // copy state from Gradient polypoly locally
+                    // (given object might change!)
+                    const ::canvas::ParametricPolyPolygon::Values& rValues(
+                        pGradient->getValues() );
+
+                    if( rValues.maColors.getLength() < 2 )
+                    {
+                        rendering::RenderState aTempState=renderState;
+                        aTempState.DeviceColor = rValues.maColors[0];
+                        fillPolyPolygon(pCanvas, xPolyPolygon, viewState, aTempState);
+                    }
+                    else
+                    {
+                        std::vector< ::Color > aColors(rValues.maColors.getLength());
+                        std::transform(&rValues.maColors[0],
+                                       &rValues.maColors[0]+rValues.maColors.getLength(),
+                                       aColors.begin(),
+                                       [](const uno::Sequence< double >& aColor) {
+                                           return vcl::unotools::stdColorSpaceSequenceToColor( aColor );
+                                       } );
+
+                        // TODO(E1): Return value
+                        // TODO(F1): FillRule
+                        gradientFill( mpOutDevProvider->getOutDev(),
+                                      mp2ndOutDevProvider ? &mp2ndOutDevProvider->getOutDev() : nullptr,
+                                      rValues,
+                                      aColors,
+                                      aPolyPoly,
+                                      viewState,
+                                      renderState,
+                                      textures[0],
+                                      nTransparency );
+                    }
+                }
+                else
+                {
+                    // TODO(F1): The generic case is missing here
+                    ENSURE_OR_THROW( false,
+                                      "CanvasHelper::fillTexturedPolyPolygon(): unknown parametric polygon encountered" );
+                }
+            }
+            else if( textures[0].Bitmap.is() )
+            {
+                geometry::IntegerSize2D aBmpSize( textures[0].Bitmap->getSize() );
+
+                ENSURE_ARG_OR_THROW( aBmpSize.Width != 0 &&
+                                 aBmpSize.Height != 0,
+                                 "CanvasHelper::fillTexturedPolyPolygon(): zero-sized texture bitmap" );
+
+                // determine maximal bound rect of texture-filled
+                // polygon
+                const ::tools::Rectangle aPolygonDeviceRect(
+                    aPolyPoly.GetBoundRect() );
+
+
+                // first of all, determine whether we have a
+                // drawBitmap() in disguise
+                // =========================================
+
+                const bool bRectangularPolygon( tools::isRectangle( aPolyPoly ) );
+
+                ::basegfx::B2DHomMatrix aTotalTransform;
+                ::canvas::tools::mergeViewAndRenderTransform(aTotalTransform,
+                                                             viewState,
+                                                             renderState);
+                ::basegfx::B2DHomMatrix aTextureTransform;
+                ::basegfx::unotools::homMatrixFromAffineMatrix( aTextureTransform,
+                                                                textures[0].AffineTransform );
+
+                aTotalTransform *= aTextureTransform;
+
+                const ::basegfx::B2DRectangle aRect(0.0, 0.0, 1.0, 1.0);
+                ::basegfx::B2DRectangle aTextureDeviceRect;
+                ::canvas::tools::calcTransformedRectBounds( aTextureDeviceRect,
+                                                            aRect,
+                                                            aTotalTransform );
+
+                const ::tools::Rectangle aIntegerTextureDeviceRect(
+                    vcl::unotools::rectangleFromB2DRectangle( aTextureDeviceRect ) );
+
+                if( bRectangularPolygon &&
+                    aIntegerTextureDeviceRect == aPolygonDeviceRect )
+                {
+                    rendering::RenderState aLocalState( renderState );
+                    ::canvas::tools::appendToRenderState(aLocalState,
+                                                         aTextureTransform);
+                    ::basegfx::B2DHomMatrix aScaleCorrection;
+                    aScaleCorrection.scale( 1.0/aBmpSize.Width,
+                                            1.0/aBmpSize.Height );
+                    ::canvas::tools::appendToRenderState(aLocalState,
+                                                         aScaleCorrection);
+
+                    // need alpha modulation?
+                    if( !::rtl::math::approxEqual( textures[0].Alpha,
+                                                   1.0 ) )
+                    {
+                        // setup alpha modulation values
+                        aLocalState.DeviceColor.realloc(4);
+                        double* pColor = aLocalState.DeviceColor.getArray();
+                        pColor[0] =
+                        pColor[1] =
+                        pColor[2] = 0.0;
+                        pColor[3] = textures[0].Alpha;
+
+                        return drawBitmapModulated( pCanvas,
+                                                    textures[0].Bitmap,
+                                                    viewState,
+                                                    aLocalState );
+                    }
+                    else
+                    {
+                        return drawBitmap( pCanvas,
+                                           textures[0].Bitmap,
+                                           viewState,
+                                           aLocalState );
+                    }
+                }
+                else
+                {
+                    // No easy mapping to drawBitmap() - calculate
+                    // texturing parameters
+                    // ===========================================
+
+                    BitmapEx aBmpEx( tools::bitmapExFromXBitmap( textures[0].Bitmap ) );
+
+                    // scale down bitmap to [0,1]x[0,1] rect, as required
+                    // from the XCanvas interface.
+                    ::basegfx::B2DHomMatrix aScaling;
+                    ::basegfx::B2DHomMatrix aPureTotalTransform; // pure view*render*texture transform
+                    aScaling.scale( 1.0/aBmpSize.Width,
+                                    1.0/aBmpSize.Height );
+
+                    aTotalTransform = aTextureTransform * aScaling;
+                    aPureTotalTransform = aTextureTransform;
+
+                    // combine with view and render transform
+                    ::basegfx::B2DHomMatrix aMatrix;
+                    ::canvas::tools::mergeViewAndRenderTransform(aMatrix, viewState, renderState);
+
+                    // combine all three transformations into one
+                    // global texture-to-device-space transformation
+                    aTotalTransform *= aMatrix;
+                    aPureTotalTransform *= aMatrix;
+
+                    // analyze transformation, and setup an
+                    // appropriate GraphicObject
+                    ::basegfx::B2DVector aScale;
+                    ::basegfx::B2DPoint  aOutputPos;
+                    double               nRotate;
+                    double               nShearX;
+                    aTotalTransform.decompose( aScale, aOutputPos, nRotate, nShearX );
+
+                    GraphicAttr             aGrfAttr;
+                    GraphicObjectSharedPtr  pGrfObj;
+
+                    if( ::basegfx::fTools::equalZero( nShearX ) )
+                    {
+                        // no shear, GraphicObject is enough (the
+                        // GraphicObject only supports scaling, rotation
+                        // and translation)
+
+                        // #i75339# don't apply mirror flags, having
+                        // negative size values is enough to make
+                        // GraphicObject flip the bitmap
+
+                        // The angle has to be mapped from radian to tenths of
+                        // degrees with the orientation reversed: [0,2Pi) ->
+                        // (3600,0].  Note that the original angle may have
+                        // values outside the [0,2Pi) interval.
+                        const double nAngleInTenthOfDegrees (3600.0 - basegfx::rad2deg<10>(nRotate));
+                        aGrfAttr.SetRotation( Degree10(::basegfx::fround(nAngleInTenthOfDegrees)) );
+
+                        pGrfObj = std::make_shared<GraphicObject>( aBmpEx );
+                    }
+                    else
+                    {
+                        // modify output position, to account for the fact
+                        // that transformBitmap() always normalizes its output
+                        // bitmap into the smallest enclosing box.
+                        ::basegfx::B2DRectangle aDestRect;
+                        ::canvas::tools::calcTransformedRectBounds( aDestRect,
+                                                                    ::basegfx::B2DRectangle(0,
+                                                                                            0,
+                                                                                            aBmpSize.Width,
+                                                                                            aBmpSize.Height),
+                                                                    aMatrix );
+
+                        aOutputPos.setX( aDestRect.getMinX() );
+                        aOutputPos.setY( aDestRect.getMinY() );
+
+                        // complex transformation, use generic affine bitmap
+                        // transformation
+                        aBmpEx = tools::transformBitmap( aBmpEx,
+                                                         aTotalTransform);
+
+                        pGrfObj = std::make_shared<GraphicObject>( aBmpEx );
+
+                        // clear scale values, generated bitmap already
+                        // contains scaling
+                        aScale.setX( 1.0 ); aScale.setY( 1.0 );
+
+                        // update bitmap size, bitmap has changed above.
+                        aBmpSize = vcl::unotools::integerSize2DFromSize(aBmpEx.GetSizePixel());
+                    }
+
+
+                    // render texture tiled into polygon
+                    // =================================
+
+                    // calc device space direction vectors. We employ
+                    // the following approach for tiled output: the
+                    // texture bitmap is output in texture space
+                    // x-major order, i.e. tile neighbors in texture
+                    // space x direction are rendered back-to-back in
+                    // device coordinate space (after the full device
+                    // transformation). Thus, the aNextTile* vectors
+                    // denote the output position updates in device
+                    // space, to get from one tile to the next.
+                    ::basegfx::B2DVector aNextTileX( 1.0, 0.0 );
+                    ::basegfx::B2DVector aNextTileY( 0.0, 1.0 );
+                    aNextTileX *= aPureTotalTransform;
+                    aNextTileY *= aPureTotalTransform;
+
+                    ::basegfx::B2DHomMatrix aInverseTextureTransform( aPureTotalTransform );
+
+                    ENSURE_ARG_OR_THROW( aInverseTextureTransform.isInvertible(),
+                                     "CanvasHelper::fillTexturedPolyPolygon(): singular texture matrix" );
+
+                    aInverseTextureTransform.invert();
+
+                    // calc bound rect of extended texture area in
+                    // device coordinates. Therefore, we first calc
+                    // the area of the polygon bound rect in texture
+                    // space. To maintain texture phase, this bound
+                    // rect is then extended to integer coordinates
+                    // (extended, because shrinking might leave some
+                    // inner polygon areas unfilled).
+                    // Finally, the bound rect is transformed back to
+                    // device coordinate space, were we determine the
+                    // start point from it.
+                    ::basegfx::B2DRectangle aTextureSpacePolygonRect;
+                    ::canvas::tools::calcTransformedRectBounds( aTextureSpacePolygonRect,
+                                                                vcl::unotools::b2DRectangleFromRectangle(aPolygonDeviceRect),
+                                                                aInverseTextureTransform );
+
+                    // calc left, top of extended polygon rect in
+                    // texture space, create one-texture instance rect
+                    // from it (i.e. rect from start point extending
+                    // 1.0 units to the right and 1.0 units to the
+                    // bottom). Note that the rounding employed here
+                    // is a bit subtle, since we need to round up/down
+                    // as _soon_ as any fractional amount is
+                    // encountered. This is to ensure that the full
+                    // polygon area is filled with texture tiles.
+                    const sal_Int32 nX1( ::canvas::tools::roundDown( aTextureSpacePolygonRect.getMinX() ) );
+                    const sal_Int32 nY1( ::canvas::tools::roundDown( aTextureSpacePolygonRect.getMinY() ) );
+                    const sal_Int32 nX2( ::canvas::tools::roundUp( aTextureSpacePolygonRect.getMaxX() ) );
+                    const sal_Int32 nY2( ::canvas::tools::roundUp( aTextureSpacePolygonRect.getMaxY() ) );
+                    const ::basegfx::B2DRectangle aSingleTextureRect(
+                        nX1, nY1,
+                        nX1 + 1.0,
+                        nY1 + 1.0 );
+
+                    // and convert back to device space
+                    ::basegfx::B2DRectangle aSingleDeviceTextureRect;
+                    ::canvas::tools::calcTransformedRectBounds( aSingleDeviceTextureRect,
+                                                                aSingleTextureRect,
+                                                                aPureTotalTransform );
+
+                    const ::Point aPtRepeat( vcl::unotools::pointFromB2DPoint(
+                                                 aSingleDeviceTextureRect.getMinimum() ) );
+                    const ::Size  aSz( ::basegfx::fround( aScale.getX() * aBmpSize.Width ),
+                                       ::basegfx::fround( aScale.getY() * aBmpSize.Height ) );
+                    const ::Size  aIntegerNextTileX( vcl::unotools::sizeFromB2DSize(aNextTileX) );
+                    const ::Size  aIntegerNextTileY( vcl::unotools::sizeFromB2DSize(aNextTileY) );
+
+                    const ::Point aPt( textures[0].RepeatModeX == rendering::TexturingMode::NONE ?
+                                       ::basegfx::fround( aOutputPos.getX() ) : aPtRepeat.X(),
+                                       textures[0].RepeatModeY == rendering::TexturingMode::NONE ?
+                                       ::basegfx::fround( aOutputPos.getY() ) : aPtRepeat.Y() );
+                    const sal_Int32 nTilesX( textures[0].RepeatModeX == rendering::TexturingMode::NONE ?
+                                             1 : nX2 - nX1 );
+                    const sal_Int32 nTilesY( textures[0].RepeatModeX == rendering::TexturingMode::NONE ?
+                                             1 : nY2 - nY1 );
+
+                    OutputDevice& rOutDev( mpOutDevProvider->getOutDev() );
+
+                    if( bRectangularPolygon )
+                    {
+                        // use optimized output path
+
+
+                        // this distinction really looks like a
+                        // micro-optimization, but in fact greatly speeds up
+                        // especially complex fills. That's because when using
+                        // clipping, we can output polygons instead of
+                        // poly-polygons, and don't have to output the gradient
+                        // twice for XOR
+
+                        // setup alpha modulation
+                        if( !::rtl::math::approxEqual( textures[0].Alpha,
+                                                       1.0 ) )
+                        {
+                            // TODO(F1): Note that the GraphicManager has
+                            // a subtle difference in how it calculates
+                            // the resulting alpha value: it's using the
+                            // inverse alpha values (i.e. 'transparency'),
+                            // and calculates transOrig + transModulate,
+                            // instead of transOrig + transModulate -
+                            // transOrig*transModulate (which would be
+                            // equivalent to the origAlpha*modulateAlpha
+                            // the DX canvas performs)
+                            aGrfAttr.SetAlpha(
+                                static_cast< sal_uInt8 >(
+                                    ::basegfx::fround( 255.0 * textures[0].Alpha ) ) );
+                        }
+
+                        rOutDev.IntersectClipRegion( aPolygonDeviceRect );
+                        textureFill( rOutDev,
+                                     *pGrfObj,
+                                     aPt,
+                                     aIntegerNextTileX,
+                                     aIntegerNextTileY,
+                                     nTilesX,
+                                     nTilesY,
+                                     aSz,
+                                     aGrfAttr );
+
+                        if( mp2ndOutDevProvider )
+                        {
+                            OutputDevice& r2ndOutDev( mp2ndOutDevProvider->getOutDev() );
+                            r2ndOutDev.IntersectClipRegion( aPolygonDeviceRect );
+                            textureFill( r2ndOutDev,
+                                         *pGrfObj,
+                                         aPt,
+                                         aIntegerNextTileX,
+                                         aIntegerNextTileY,
+                                         nTilesX,
+                                         nTilesY,
+                                         aSz,
+                                         aGrfAttr );
+                        }
+                    }
+                    else
+                    {
+                        // output texture the hard way: XORing out the
+                        // polygon
+                        // ===========================================
+
+                        if( !::rtl::math::approxEqual( textures[0].Alpha,
+                                                       1.0 ) )
+                        {
+                            // uh-oh. alpha blending is required,
+                            // cannot do direct XOR, but have to
+                            // prepare the filled polygon within a
+                            // VDev
+                            ScopedVclPtrInstance< VirtualDevice > pVDev( rOutDev );
+                            pVDev->SetOutputSizePixel( aPolygonDeviceRect.GetSize() );
+
+                            // shift output to origin of VDev
+                            const ::Point aOutPos( aPt - aPolygonDeviceRect.TopLeft() );
+                            aPolyPoly.Translate( ::Point( -aPolygonDeviceRect.Left(),
+                                                          -aPolygonDeviceRect.Top() ) );
+
+                            const vcl::Region aPolyClipRegion( aPolyPoly );
+
+                            pVDev->SetClipRegion( aPolyClipRegion );
+                            textureFill( *pVDev,
+                                         *pGrfObj,
+                                         aOutPos,
+                                         aIntegerNextTileX,
+                                         aIntegerNextTileY,
+                                         nTilesX,
+                                         nTilesY,
+                                         aSz,
+                                         aGrfAttr );
+
+                            // output VDev content alpha-blended to
+                            // target position.
+                            const ::Point aEmptyPoint;
+                            BitmapEx aContentBmp(
+                                pVDev->GetBitmapEx( aEmptyPoint,
+                                                 pVDev->GetOutputSizePixel() ) );
+
+                            sal_uInt8 nCol( static_cast< sal_uInt8 >(
+                                           ::basegfx::fround( 255.0*( 1.0 - textures[0].Alpha ) ) ) );
+                            AlphaMask aAlpha( pVDev->GetOutputSizePixel(),
+                                              &nCol );
+
+                            BitmapEx aOutputBmpEx( aContentBmp.GetBitmap(), aAlpha );
+                            rOutDev.DrawBitmapEx( aPolygonDeviceRect.TopLeft(),
+                                                  aOutputBmpEx );
+
+                            if( mp2ndOutDevProvider )
+                                mp2ndOutDevProvider->getOutDev().DrawBitmapEx( aPolygonDeviceRect.TopLeft(),
+                                                                       aOutputBmpEx );
+                        }
+                        else
+                        {
+                            const vcl::Region aPolyClipRegion( aPolyPoly );
+
+                            rOutDev.Push( vcl::PushFlags::CLIPREGION );
+                            rOutDev.IntersectClipRegion( aPolyClipRegion );
+
+                            textureFill( rOutDev,
+                                         *pGrfObj,
+                                         aPt,
+                                         aIntegerNextTileX,
+                                         aIntegerNextTileY,
+                                         nTilesX,
+                                         nTilesY,
+                                         aSz,
+                                         aGrfAttr );
+                            rOutDev.Pop();
+
+                            if( mp2ndOutDevProvider )
+                            {
+                                OutputDevice& r2ndOutDev( mp2ndOutDevProvider->getOutDev() );
+                                r2ndOutDev.Push( vcl::PushFlags::CLIPREGION );
+
+                                r2ndOutDev.IntersectClipRegion( aPolyClipRegion );
+                                textureFill( r2ndOutDev,
+                                             *pGrfObj,
+                                             aPt,
+                                             aIntegerNextTileX,
+                                             aIntegerNextTileY,
+                                             nTilesX,
+                                             nTilesY,
+                                             aSz,
+                                             aGrfAttr );
+                                r2ndOutDev.Pop();
+                            }
+                        }
+                    }
+                }
+            }
+        }
+
+        // TODO(P1): Provide caching here.
+        return uno::Reference< rendering::XCachedPrimitive >(nullptr);
+    }
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/devicehelper.cxx b/canvas/source/vcl/devicehelper.cxx
new file mode 100644
index 000000000..40d2575f8
--- /dev/null
+++ b/canvas/source/vcl/devicehelper.cxx
@@ -0,0 +1,217 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <basegfx/utils/canvastools.hxx>
+#include <basegfx/utils/unopolypolygon.hxx>
+#include <canvas/canvastools.hxx>
+#include <tools/stream.hxx>
+#include <vcl/canvastools.hxx>
+#include <vcl/dibtools.hxx>
+
+#include "canvasbitmap.hxx"
+#include "devicehelper.hxx"
+
+using namespace ::com::sun::star;
+
+namespace vclcanvas
+{
+    DeviceHelper::DeviceHelper()
+    {}
+
+    void DeviceHelper::init( const OutDevProviderSharedPtr& rOutDev )
+    {
+        mpOutDev = rOutDev;
+    }
+
+    geometry::RealSize2D DeviceHelper::getPhysicalResolution()
+    {
+        if( !mpOutDev )
+            return ::canvas::tools::createInfiniteSize2D(); // we're disposed
+
+        // Map a one-by-one millimeter box to pixel
+        OutputDevice& rOutDev = mpOutDev->getOutDev();
+        const MapMode aOldMapMode( rOutDev.GetMapMode() );
+        rOutDev.SetMapMode( MapMode(MapUnit::MapMM) );
+        const Size aPixelSize( rOutDev.LogicToPixel(Size(1,1)) );
+        rOutDev.SetMapMode( aOldMapMode );
+
+        return vcl::unotools::size2DFromSize( aPixelSize );
+    }
+
+    geometry::RealSize2D DeviceHelper::getPhysicalSize()
+    {
+        if( !mpOutDev )
+            return ::canvas::tools::createInfiniteSize2D(); // we're disposed
+
+        // Map the pixel dimensions of the output window to millimeter
+        OutputDevice& rOutDev = mpOutDev->getOutDev();
+        const MapMode aOldMapMode( rOutDev.GetMapMode() );
+        rOutDev.SetMapMode( MapMode(MapUnit::MapMM) );
+        const Size aLogSize( rOutDev.PixelToLogic(rOutDev.GetOutputSizePixel()) );
+        rOutDev.SetMapMode( aOldMapMode );
+
+        return vcl::unotools::size2DFromSize( aLogSize );
+    }
+
+    uno::Reference< rendering::XLinePolyPolygon2D > DeviceHelper::createCompatibleLinePolyPolygon(
+        const uno::Reference< rendering::XGraphicDevice >&              ,
+        const uno::Sequence< uno::Sequence< geometry::RealPoint2D > >&  points )
+    {
+        uno::Reference< rendering::XLinePolyPolygon2D > xPoly;
+        if( !mpOutDev )
+            return xPoly; // we're disposed
+
+        xPoly.set( new ::basegfx::unotools::UnoPolyPolygon(
+                       ::basegfx::unotools::polyPolygonFromPoint2DSequenceSequence( points ) ) );
+        // vcl only handles even_odd polygons
+        xPoly->setFillRule(rendering::FillRule_EVEN_ODD);
+
+        return xPoly;
+    }
+
+    uno::Reference< rendering::XBezierPolyPolygon2D > DeviceHelper::createCompatibleBezierPolyPolygon(
+        const uno::Reference< rendering::XGraphicDevice >&                      ,
+        const uno::Sequence< uno::Sequence< geometry::RealBezierSegment2D > >&  points )
+    {
+        uno::Reference< rendering::XBezierPolyPolygon2D > xPoly;
+        if( !mpOutDev )
+            return xPoly; // we're disposed
+
+        xPoly.set( new ::basegfx::unotools::UnoPolyPolygon(
+                       ::basegfx::unotools::polyPolygonFromBezier2DSequenceSequence( points ) ) );
+        // vcl only handles even_odd polygons
+        xPoly->setFillRule(rendering::FillRule_EVEN_ODD);
+
+        return xPoly;
+    }
+
+    uno::Reference< rendering::XBitmap > DeviceHelper::createCompatibleBitmap(
+        const uno::Reference< rendering::XGraphicDevice >& rDevice,
+        const geometry::IntegerSize2D&                     size )
+    {
+        if( !mpOutDev )
+            return uno::Reference< rendering::XBitmap >(); // we're disposed
+
+        return uno::Reference< rendering::XBitmap >(
+            new CanvasBitmap( vcl::unotools::sizeFromIntegerSize2D(size),
+                              false,
+                              *rDevice,
+                              mpOutDev ) );
+    }
+
+    uno::Reference< rendering::XVolatileBitmap > DeviceHelper::createVolatileBitmap(
+        const uno::Reference< rendering::XGraphicDevice >&  ,
+        const geometry::IntegerSize2D&                       )
+    {
+        return uno::Reference< rendering::XVolatileBitmap >();
+    }
+
+    uno::Reference< rendering::XBitmap > DeviceHelper::createCompatibleAlphaBitmap(
+        const uno::Reference< rendering::XGraphicDevice >& rDevice,
+        const geometry::IntegerSize2D&                     size )
+    {
+        if( !mpOutDev )
+            return uno::Reference< rendering::XBitmap >(); // we're disposed
+
+        return uno::Reference< rendering::XBitmap >(
+            new CanvasBitmap( vcl::unotools::sizeFromIntegerSize2D(size),
+                              true,
+                              *rDevice,
+                              mpOutDev ) );
+    }
+
+    uno::Reference< rendering::XVolatileBitmap > DeviceHelper::createVolatileAlphaBitmap(
+        const uno::Reference< rendering::XGraphicDevice >&  ,
+        const geometry::IntegerSize2D&                       )
+    {
+        return uno::Reference< rendering::XVolatileBitmap >();
+    }
+
+    void DeviceHelper::disposing()
+    {
+        // release all references
+        mpOutDev.reset();
+    }
+
+    uno::Any DeviceHelper::isAccelerated() const
+    {
+        return css::uno::Any(false);
+    }
+
+    uno::Any DeviceHelper::getDeviceHandle() const
+    {
+        if( !mpOutDev )
+            return uno::Any();
+
+        return uno::Any(
+            reinterpret_cast< sal_Int64 >(&mpOutDev->getOutDev()) );
+    }
+
+    uno::Any DeviceHelper::getSurfaceHandle() const
+    {
+        return getDeviceHandle();
+    }
+
+    namespace
+    {
+        uno::Reference<rendering::XColorSpace>& GetDeviceColorSpace()
+        {
+            static uno::Reference<rendering::XColorSpace> xColorSpace =
+            []()
+            {
+                auto xTmp = canvas::tools::getStdColorSpace();
+                assert( xTmp.is() );
+                return xTmp;
+            }();
+            return xColorSpace;
+        };
+    }
+
+    uno::Reference<rendering::XColorSpace> const & DeviceHelper::getColorSpace() const
+    {
+        // always the same
+        return GetDeviceColorSpace();
+    }
+
+    void DeviceHelper::dumpScreenContent() const
+    {
+        static sal_Int32 nFilePostfixCount(0);
+
+        if( !mpOutDev )
+            return;
+
+        OUString aFilename = "dbg_frontbuffer" + OUString::number(nFilePostfixCount) + ".bmp";
+
+        SvFileStream aStream( aFilename, StreamMode::STD_READWRITE );
+
+        const ::Point aEmptyPoint;
+        OutputDevice& rOutDev = mpOutDev->getOutDev();
+        bool bOldMap( rOutDev.IsMapModeEnabled() );
+        rOutDev.EnableMapMode( false );
+        WriteDIB(rOutDev.GetBitmapEx(aEmptyPoint, rOutDev.GetOutputSizePixel()), aStream, false);
+        rOutDev.EnableMapMode( bOldMap );
+
+        ++nFilePostfixCount;
+    }
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/devicehelper.hxx b/canvas/source/vcl/devicehelper.hxx
new file mode 100644
index 000000000..f8ff12aed
--- /dev/null
+++ b/canvas/source/vcl/devicehelper.hxx
@@ -0,0 +1,86 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <com/sun/star/rendering/XGraphicDevice.hpp>
+
+#include "outdevprovider.hxx"
+
+
+/* Definition of DeviceHelper class */
+
+namespace vclcanvas
+{
+    class DeviceHelper
+    {
+    public:
+        DeviceHelper();
+
+        /// make noncopyable
+        DeviceHelper(const DeviceHelper&) = delete;
+        const DeviceHelper& operator=(const DeviceHelper&) = delete;
+
+        void init( const OutDevProviderSharedPtr& rOutDev );
+
+        /// Dispose all internal references
+        void disposing();
+
+        // XWindowGraphicDevice
+        css::geometry::RealSize2D getPhysicalResolution();
+        css::geometry::RealSize2D getPhysicalSize();
+        css::uno::Reference< css::rendering::XLinePolyPolygon2D > createCompatibleLinePolyPolygon(
+            const css::uno::Reference< css::rendering::XGraphicDevice >&                               rDevice,
+            const css::uno::Sequence< css::uno::Sequence< css::geometry::RealPoint2D > >& points );
+        css::uno::Reference< css::rendering::XBezierPolyPolygon2D > createCompatibleBezierPolyPolygon(
+            const css::uno::Reference< css::rendering::XGraphicDevice >&                                       rDevice,
+            const css::uno::Sequence< css::uno::Sequence< css::geometry::RealBezierSegment2D > >& points );
+        css::uno::Reference< css::rendering::XBitmap > createCompatibleBitmap(
+            const css::uno::Reference< css::rendering::XGraphicDevice >&  rDevice,
+            const css::geometry::IntegerSize2D&                                        size );
+        css::uno::Reference< css::rendering::XVolatileBitmap > createVolatileBitmap(
+            const css::uno::Reference< css::rendering::XGraphicDevice >&  rDevice,
+            const css::geometry::IntegerSize2D&                                        size );
+        css::uno::Reference< css::rendering::XBitmap > createCompatibleAlphaBitmap(
+            const css::uno::Reference< css::rendering::XGraphicDevice >&  rDevice,
+            const css::geometry::IntegerSize2D&                                        size );
+        css::uno::Reference< css::rendering::XVolatileBitmap > createVolatileAlphaBitmap(
+            const css::uno::Reference< css::rendering::XGraphicDevice >&  rDevice,
+            const css::geometry::IntegerSize2D&                                        size );
+
+        css::uno::Any isAccelerated() const;
+        css::uno::Any getDeviceHandle() const;
+        css::uno::Any getSurfaceHandle() const;
+        css::uno::Reference<
+            css::rendering::XColorSpace > const & getColorSpace() const;
+
+        const OutDevProviderSharedPtr& getOutDev() const { return mpOutDev; }
+
+        /** called when DumpScreenContent property is enabled on
+            XGraphicDevice, and writes out bitmaps of current screen.
+         */
+        void dumpScreenContent() const;
+
+    private:
+        /// For retrieving device info
+        OutDevProviderSharedPtr mpOutDev;
+    };
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/impltools.cxx b/canvas/source/vcl/impltools.cxx
new file mode 100644
index 000000000..025b80bd2
--- /dev/null
+++ b/canvas/source/vcl/impltools.cxx
@@ -0,0 +1,239 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <basegfx/matrix/b2dhommatrix.hxx>
+#include <basegfx/numeric/ftools.hxx>
+#include <basegfx/point/b2dpoint.hxx>
+#include <basegfx/polygon/b2dpolygontools.hxx>
+#include <basegfx/range/b2drectangle.hxx>
+#include <basegfx/utils/canvastools.hxx>
+#include <basegfx/tuple/b2dtuple.hxx>
+#include <rtl/math.hxx>
+#include <tools/diagnose_ex.h>
+#include <sal/log.hxx>
+#include <vcl/bitmapex.hxx>
+#include <vcl/canvastools.hxx>
+#include <vcl/BitmapTools.hxx>
+#include <vcl/metric.hxx>
+#include <vcl/skia/SkiaHelper.hxx>
+
+#include <canvas/canvastools.hxx>
+
+#include "canvasbitmap.hxx"
+#include "impltools.hxx"
+#include "spritecanvas.hxx"
+
+
+using namespace ::com::sun::star;
+
+namespace vclcanvas::tools
+{
+        ::BitmapEx bitmapExFromXBitmap( const uno::Reference< rendering::XBitmap >& xBitmap )
+        {
+            // TODO(F3): CanvasCustomSprite should also be tunnelled
+            // through (also implements XIntegerBitmap interface)
+            CanvasBitmap* pBitmapImpl = dynamic_cast< CanvasBitmap* >( xBitmap.get() );
+
+            if( pBitmapImpl )
+            {
+                return pBitmapImpl->getBitmap();
+            }
+            else
+            {
+                SpriteCanvas* pCanvasImpl = dynamic_cast< SpriteCanvas* >( xBitmap.get() );
+                if( pCanvasImpl && pCanvasImpl->getBackBuffer() )
+                {
+                    // TODO(F3): mind the plain Canvas impl. Consolidate with CWS canvas05
+                    const ::OutputDevice& rDev( pCanvasImpl->getBackBuffer()->getOutDev() );
+                    const ::Point aEmptyPoint;
+                    return rDev.GetBitmapEx( aEmptyPoint,
+                                             rDev.GetOutputSizePixel() );
+                }
+
+                // TODO(F2): add support for floating point bitmap formats
+                uno::Reference< rendering::XIntegerReadOnlyBitmap > xIntBmp(
+                    xBitmap, uno::UNO_QUERY_THROW );
+
+                ::BitmapEx aBmpEx = vcl::unotools::bitmapExFromXBitmap( xIntBmp );
+                if( !aBmpEx.IsEmpty() )
+                    return aBmpEx;
+
+                // TODO(F1): extract pixel from XBitmap interface
+                ENSURE_OR_THROW( false,
+                                  "bitmapExFromXBitmap(): could not extract bitmap" );
+            }
+
+            return ::BitmapEx();
+        }
+
+        bool setupFontTransform( ::Point&                       o_rPoint,
+                                 vcl::Font&                    io_rVCLFont,
+                                 const rendering::ViewState&    rViewState,
+                                 const rendering::RenderState&  rRenderState,
+                                 ::OutputDevice const &         rOutDev )
+        {
+            ::basegfx::B2DHomMatrix aMatrix;
+
+            ::canvas::tools::mergeViewAndRenderTransform(aMatrix,
+                                                         rViewState,
+                                                         rRenderState);
+
+            ::basegfx::B2DTuple aScale;
+            ::basegfx::B2DTuple aTranslate;
+            double nRotate, nShearX;
+
+            aMatrix.decompose( aScale, aTranslate, nRotate, nShearX );
+
+            // query font metric _before_ tampering with width and height
+            if( !::rtl::math::approxEqual(aScale.getX(), aScale.getY()) )
+            {
+                // retrieve true font width
+                const sal_Int32 nFontWidth( rOutDev.GetFontMetric( io_rVCLFont ).GetAverageFontWidth() );
+
+                const sal_Int32 nScaledFontWidth( ::basegfx::fround(nFontWidth * aScale.getX()) );
+
+                if( !nScaledFontWidth )
+                {
+                    // scale is smaller than one pixel - disable text
+                    // output altogether
+                    return false;
+                }
+
+                io_rVCLFont.SetAverageFontWidth( nScaledFontWidth );
+            }
+
+            if( !::rtl::math::approxEqual(aScale.getY(), 1.0) )
+            {
+                const sal_Int32 nFontHeight( io_rVCLFont.GetFontHeight() );
+                io_rVCLFont.SetFontHeight( ::basegfx::fround(nFontHeight * aScale.getY()) );
+            }
+
+            io_rVCLFont.SetOrientation( Degree10( ::basegfx::fround(-basegfx::rad2deg<10>(fmod(nRotate, 2*M_PI))) ) );
+
+            // TODO(F2): Missing functionality in VCL: shearing
+            o_rPoint.setX( ::basegfx::fround(aTranslate.getX()) );
+            o_rPoint.setY( ::basegfx::fround(aTranslate.getY()) );
+
+            return true;
+        }
+
+        bool isRectangle( const ::tools::PolyPolygon& rPolyPoly )
+        {
+            // exclude some cheap cases first
+            if( rPolyPoly.Count() != 1 )
+                return false;
+
+            const ::tools::Polygon& rPoly( rPolyPoly[0] );
+
+            sal_uInt16 nCount( rPoly.GetSize() );
+            if( nCount < 4 )
+                return false;
+
+            // delegate to basegfx
+            return ::basegfx::utils::isRectangle( rPoly.getB2DPolygon() );
+        }
+
+
+        // VCL-Canvas related
+
+
+        ::Point mapRealPoint2D( const geometry::RealPoint2D&    rPoint,
+                                const rendering::ViewState&     rViewState,
+                                const rendering::RenderState&   rRenderState )
+        {
+            ::basegfx::B2DPoint aPoint( ::basegfx::unotools::b2DPointFromRealPoint2D(rPoint) );
+
+            ::basegfx::B2DHomMatrix aMatrix;
+            aPoint *= ::canvas::tools::mergeViewAndRenderTransform(aMatrix,
+                                                                   rViewState,
+                                                                   rRenderState);
+
+            return vcl::unotools::pointFromB2DPoint( aPoint );
+        }
+
+        ::tools::PolyPolygon mapPolyPolygon( const ::basegfx::B2DPolyPolygon&  rPoly,
+                                      const rendering::ViewState&       rViewState,
+                                      const rendering::RenderState&     rRenderState )
+        {
+            ::basegfx::B2DHomMatrix aMatrix;
+            ::canvas::tools::mergeViewAndRenderTransform(aMatrix,
+                                                         rViewState,
+                                                         rRenderState);
+
+            ::basegfx::B2DPolyPolygon aTemp( rPoly );
+
+            aTemp.transform( aMatrix );
+
+            return ::tools::PolyPolygon( aTemp );
+        }
+
+        ::BitmapEx transformBitmap( const BitmapEx&                 rBitmap,
+                                    const ::basegfx::B2DHomMatrix&  rTransform )
+        {
+            SAL_INFO( "canvas.vcl", "::vclcanvas::tools::transformBitmap()" );
+            SAL_INFO( "canvas.vcl", "::vclcanvas::tools::transformBitmap: 0x" << std::hex << &rBitmap );
+
+            // calc transformation and size of bitmap to be
+            // generated. Note, that the translational components are
+            // deleted from the transformation; this can be handled by
+            // an offset when painting the bitmap
+            const Size                  aBmpSize( rBitmap.GetSizePixel() );
+            ::basegfx::B2DRectangle     aDestRect;
+
+            // calc effective transformation for bitmap
+            const ::basegfx::B2DRectangle aSrcRect( 0, 0,
+                                                    aBmpSize.Width(),
+                                                    aBmpSize.Height() );
+            ::canvas::tools::calcTransformedRectBounds( aDestRect,
+                                                        aSrcRect,
+                                                        rTransform );
+
+            // re-center bitmap, such that it's left, top border is
+            // aligned with (0,0). The method takes the given
+            // rectangle, and calculates a transformation that maps
+            // this rectangle unscaled to the origin.
+            ::basegfx::B2DHomMatrix aLocalTransform;
+            ::canvas::tools::calcRectToOriginTransform( aLocalTransform,
+                                                        aSrcRect,
+                                                        rTransform );
+
+            return vcl::bitmap::CanvasTransformBitmap(rBitmap, rTransform, aDestRect, aLocalTransform);
+        }
+
+        void SetDefaultDeviceAntiAliasing( OutputDevice* pDevice )
+        {
+#if defined( MACOSX )
+            // use AA on VCLCanvas for Mac
+            pDevice->SetAntialiasing( AntialiasingFlags::Enable | pDevice->GetAntialiasing() );
+#else
+            // switch off AA for WIN32 and UNIX, the VCLCanvas does not look good with it and
+            // is not required to do AA. It would need to be adapted to use it correctly
+            // (especially gradient painting). This will need extra work.
+            if( SkiaHelper::isVCLSkiaEnabled()) // But Skia handles AA fine.
+                pDevice->SetAntialiasing( AntialiasingFlags::Enable | pDevice->GetAntialiasing() );
+            else
+                pDevice->SetAntialiasing(pDevice->GetAntialiasing() & ~AntialiasingFlags::Enable);
+#endif
+        }
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/impltools.hxx b/canvas/source/vcl/impltools.hxx
new file mode 100644
index 000000000..f8a9db075
--- /dev/null
+++ b/canvas/source/vcl/impltools.hxx
@@ -0,0 +1,178 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <osl/mutex.hxx>
+
+#include <vcl/svapp.hxx>
+#include <vcl/outdev.hxx>
+
+#include <basegfx/polygon/b2dpolypolygon.hxx>
+
+#include <com/sun/star/uno/Reference.hxx>
+
+#include "outdevprovider.hxx"
+
+
+class OutputDevice;
+class Point;
+class Size;
+
+namespace basegfx
+{
+    namespace matrix
+    {
+        class B2DHomMatrix;
+    }
+}
+
+namespace com::sun::star::awt
+{
+    struct Point;
+    struct Size;
+    struct Rectangle;
+}
+
+namespace com::sun::star::drawing
+{
+    struct HomogenMatrix3;
+}
+
+namespace com::sun::star::geometry
+{
+    struct RealPoint2D;
+    struct RealSize2D;
+    struct RealRectangle2D;
+}
+
+namespace com::sun::star::rendering
+{
+    struct RenderState;
+    struct ViewState;
+    class  XBitmap;
+}
+
+
+namespace vclcanvas
+{
+    namespace tools
+    {
+        ::BitmapEx
+        bitmapExFromXBitmap( const css::uno::Reference<
+                             css::rendering::XBitmap >& );
+
+        /** Setup VCL font and output position
+
+            @returns false, if no text output should happen
+         */
+        bool setupFontTransform( ::Point&                              o_rPoint,
+                                 vcl::Font&                            io_rVCLFont,
+                                 const css::rendering::ViewState&      viewState,
+                                 const css::rendering::RenderState&    renderState,
+                                 ::OutputDevice const &                rOutDev );
+
+        /** Predicate, to determine whether polygon is actually an axis-aligned rectangle
+
+            @return true, if the polygon is a rectangle.
+         */
+        bool isRectangle( const ::tools::PolyPolygon& rPolyPoly );
+
+
+        // Little helper to encapsulate locking into policy class
+        class LocalGuard
+        {
+        public:
+            LocalGuard() :
+                aSolarGuard()
+            {
+            }
+
+            /// To be compatible with CanvasBase mutex concept
+            explicit LocalGuard( const ::osl::Mutex& ) :
+                aSolarGuard()
+            {
+            }
+
+        private:
+            SolarMutexGuard aSolarGuard;
+        };
+
+        class OutDevStateKeeper
+        {
+        public:
+            explicit OutDevStateKeeper( OutputDevice& rOutDev ) :
+                mpOutDev( &rOutDev ),
+                mbMappingWasEnabled( mpOutDev->IsMapModeEnabled() ),
+                mnAntiAliasing( mpOutDev->GetAntialiasing() )
+            {
+                init();
+            }
+
+            explicit OutDevStateKeeper( const OutDevProviderSharedPtr& rOutDev ) :
+                mpOutDev( rOutDev ? &(rOutDev->getOutDev()) : nullptr ),
+                mbMappingWasEnabled( mpOutDev && mpOutDev->IsMapModeEnabled() ),
+                mnAntiAliasing( mpOutDev ? mpOutDev->GetAntialiasing() : AntialiasingFlags::NONE )
+            {
+                init();
+            }
+
+            ~OutDevStateKeeper()
+            {
+                if( mpOutDev )
+                {
+                    mpOutDev->EnableMapMode( mbMappingWasEnabled );
+                    mpOutDev->SetAntialiasing( mnAntiAliasing );
+
+                    mpOutDev->Pop();
+                }
+            }
+
+        private:
+            void init()
+            {
+                if( mpOutDev )
+                {
+                    mpOutDev->Push();
+                    mpOutDev->EnableMapMode(false);
+                    mpOutDev->SetAntialiasing( AntialiasingFlags::Enable );
+                }
+            }
+
+            VclPtr<OutputDevice>    mpOutDev;
+            const bool              mbMappingWasEnabled;
+            const AntialiasingFlags mnAntiAliasing;
+        };
+
+        ::Point mapRealPoint2D( const css::geometry::RealPoint2D&  rPoint,
+                                const css::rendering::ViewState&   rViewState,
+                                const css::rendering::RenderState& rRenderState );
+
+        ::tools::PolyPolygon mapPolyPolygon( const ::basegfx::B2DPolyPolygon&                          rPoly,
+                                      const css::rendering::ViewState&     rViewState,
+                                      const css::rendering::RenderState&   rRenderState );
+
+        ::BitmapEx transformBitmap( const BitmapEx&                                     rBitmap,
+                                    const ::basegfx::B2DHomMatrix&                      rTransform );
+
+        void SetDefaultDeviceAntiAliasing( OutputDevice* pDevice );
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/outdevholder.hxx b/canvas/source/vcl/outdevholder.hxx
new file mode 100644
index 000000000..9679687c4
--- /dev/null
+++ b/canvas/source/vcl/outdevholder.hxx
@@ -0,0 +1,50 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <vcl/outdev.hxx>
+
+#include "outdevprovider.hxx"
+
+namespace vclcanvas
+{
+class OutDevHolder : public OutDevProvider
+{
+public:
+    OutDevHolder(const OutDevHolder&) = delete;
+    const OutDevHolder& operator=(const OutDevHolder&) = delete;
+
+    explicit OutDevHolder(OutputDevice& rOutDev)
+        : mrOutDev(rOutDev)
+    {
+    }
+
+private:
+    virtual OutputDevice& getOutDev() override { return mrOutDev; }
+    virtual const OutputDevice& getOutDev() const override { return mrOutDev; }
+
+    // TODO(Q2): Lifetime issue. This _only_ works reliably,
+    // if disposing the Canvas correctly disposes all
+    // entities which hold this pointer.
+    OutputDevice& mrOutDev;
+};
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/outdevprovider.hxx b/canvas/source/vcl/outdevprovider.hxx
new file mode 100644
index 000000000..668212b9d
--- /dev/null
+++ b/canvas/source/vcl/outdevprovider.hxx
@@ -0,0 +1,50 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <memory>
+
+class OutputDevice;
+
+namespace vclcanvas
+{
+    /* Definition of OutDevProvider interface */
+
+    /** Implementers of this interface provide the CanvasHelper
+        with its OutputDevice.
+
+        This additional level of indirection was necessary, as the
+        OutputDevice is not an interface. There had to be a mechanism
+        to detect the moment when an OutputDevice is rendered to
+        (e.g. for the BitmapBackBuffer).
+     */
+    class OutDevProvider
+    {
+    public:
+        virtual ~OutDevProvider() {}
+
+        virtual OutputDevice&       getOutDev() = 0;
+        virtual const OutputDevice& getOutDev() const = 0;
+    };
+
+    typedef std::shared_ptr< OutDevProvider > OutDevProviderSharedPtr;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/repainttarget.hxx b/canvas/source/vcl/repainttarget.hxx
new file mode 100644
index 000000000..b7b4058e9
--- /dev/null
+++ b/canvas/source/vcl/repainttarget.hxx
@@ -0,0 +1,52 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include "cachedbitmap.hxx"
+
+class Point;
+class Size;
+class GraphicAttr;
+
+namespace vclcanvas
+{
+    /* Definition of RepaintTarget interface */
+
+    /** Target interface for XCachedPrimitive implementations
+
+        This interface must be implemented on all canvas
+        implementations that hand out XCachedPrimitives
+     */
+    class RepaintTarget
+    {
+    public:
+        virtual ~RepaintTarget() {}
+
+        // call this when a bitmap is repainted
+        virtual bool repaint( const GraphicObjectSharedPtr&                   rGrf,
+                              const css::rendering::ViewState&                viewState,
+                              const css::rendering::RenderState&              renderState,
+                              const ::Point&                                  rPt,
+                              const ::Size&                                   rSz,
+                              const GraphicAttr&                              rAttr ) const = 0;
+    };
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/sprite.hxx b/canvas/source/vcl/sprite.hxx
new file mode 100644
index 000000000..30ab15aaf
--- /dev/null
+++ b/canvas/source/vcl/sprite.hxx
@@ -0,0 +1,65 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <base/sprite.hxx>
+
+class OutputDevice;
+
+namespace vclcanvas
+{
+    /** Specialization of ::canvas::Sprite interface, to also provide
+        redraw methods.
+     */
+    class Sprite : public ::canvas::Sprite
+    {
+    public:
+
+        /** Redraw sprite at the stored position.
+
+            @param bBufferedUpdate
+            When true, the redraw does <em>not</em> happen directly on
+            the front buffer, but within a VDev. Used to speed up
+            drawing.
+         */
+        virtual void redraw( OutputDevice& rOutDev,
+                             bool          bBufferedUpdate ) const = 0;
+
+        /** Redraw sprite at the given position.
+
+            @param rPos
+            Output position of the sprite. Overrides the sprite's own
+            output position.
+
+            @param bBufferedUpdate
+            When true, the redraw does <em>not</em> happen directly on
+            the front buffer, but within a VDev. Used to speed up
+            drawing.
+         */
+        virtual void redraw( OutputDevice&              rOutDev,
+                             const ::basegfx::B2DPoint& rPos,
+                             bool                       bBufferedUpdate ) const = 0;
+
+    protected:
+        ~Sprite() {}
+    };
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/spritecanvas.cxx b/canvas/source/vcl/spritecanvas.cxx
new file mode 100644
index 000000000..60c65fbd7
--- /dev/null
+++ b/canvas/source/vcl/spritecanvas.cxx
@@ -0,0 +1,187 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+#include <sal/log.hxx>
+
+#include <com/sun/star/awt/XTopWindow.hpp>
+#include <com/sun/star/lang/NoSupportException.hpp>
+#include <cppuhelper/supportsservice.hxx>
+#include <tools/diagnose_ex.h>
+
+#include "spritecanvas.hxx"
+#include "outdevholder.hxx"
+#include "windowoutdevholder.hxx"
+
+
+using namespace ::com::sun::star;
+
+namespace vclcanvas
+{
+    SpriteCanvas::SpriteCanvas( const uno::Sequence< uno::Any >&                aArguments,
+                                const uno::Reference< uno::XComponentContext >& /*rxContext*/ ) :
+        maArguments(aArguments)
+    {
+    }
+
+    void SpriteCanvas::initialize()
+    {
+        SolarMutexGuard aGuard;
+
+        // #i64742# Only call initialize when not in probe mode
+        if( !maArguments.hasElements() )
+            return;
+
+        SAL_INFO("canvas.vcl", "SpriteCanvas created" );
+
+        // add our own property to GraphicDevice
+        maPropHelper.addProperties(
+            ::canvas::PropertySetHelper::MakeMap
+            ("UnsafeScrolling",
+             [this]() { return this->maCanvasHelper.isUnsafeScrolling(); },
+             [this](css::uno::Any const& aAny) mutable { this->maCanvasHelper.enableUnsafeScrolling(aAny); } )
+            ("SpriteBounds",
+             [this]() { return this->maCanvasHelper.isSpriteBounds(); },
+             [this](css::uno::Any const& aAny) mutable { this->maCanvasHelper.enableSpriteBounds(aAny); } ));
+
+        SAL_INFO("canvas.vcl", "VCLSpriteCanvas::initialize called" );
+
+        ENSURE_ARG_OR_THROW( maArguments.hasElements(),
+                             "VCLSpriteCanvas::initialize: wrong number of arguments" );
+
+        /* maArguments:
+           0: ptr to creating instance (Window or VirtualDevice)
+           1: current bounds of creating instance
+           2: bool, denoting always on top state for Window (always false for VirtualDevice)
+           3: XWindow for creating Window (or empty for VirtualDevice)
+           4: SystemGraphicsData as a streamed Any
+         */
+        ENSURE_ARG_OR_THROW( maArguments.getLength() >= 4 &&
+                             maArguments[0].getValueTypeClass() == uno::TypeClass_HYPER &&
+                             maArguments[3].getValueTypeClass() == uno::TypeClass_INTERFACE,
+                             "VCLSpriteCanvas::initialize: wrong number of arguments, or wrong types" );
+
+        sal_Int64 nPtr = 0;
+        maArguments[0] >>= nPtr;
+
+        OutputDevice* pOutDev = reinterpret_cast<OutputDevice*>(nPtr);
+        if( !pOutDev )
+            throw lang::NoSupportException("Passed OutDev invalid!", nullptr);
+
+        uno::Reference< awt::XWindow > xParentWindow;
+        maArguments[3] >>= xParentWindow;
+
+        OutDevProviderSharedPtr pOutDevProvider;
+        if( xParentWindow.is())
+            pOutDevProvider = std::make_shared<WindowOutDevHolder>(xParentWindow);
+        else
+            pOutDevProvider = std::make_shared<OutDevHolder>(*pOutDev);
+
+        // setup helper
+        maDeviceHelper.init( pOutDevProvider );
+        setWindow( xParentWindow.is()
+            ? uno::Reference<awt::XWindow2>(xParentWindow, uno::UNO_QUERY_THROW)
+            : uno::Reference<awt::XWindow2>());
+        maCanvasHelper.init( maDeviceHelper.getBackBuffer(),
+                             *this,
+                             maRedrawManager,
+                             false,   // no OutDev state preservation
+                             false ); // no alpha on surface
+
+        maArguments.realloc(0);
+    }
+
+    SpriteCanvas::~SpriteCanvas()
+    {
+        SAL_INFO("canvas.vcl", "SpriteCanvas destroyed" );
+    }
+
+
+    void SpriteCanvas::disposeThis()
+    {
+        SolarMutexGuard aGuard;
+
+        // forward to parent
+        SpriteCanvasBaseT::disposeThis();
+    }
+
+    sal_Bool SAL_CALL SpriteCanvas::showBuffer( sal_Bool bUpdateAll )
+    {
+        return updateScreen( bUpdateAll );
+    }
+
+    sal_Bool SAL_CALL SpriteCanvas::switchBuffer( sal_Bool bUpdateAll )
+    {
+        return updateScreen( bUpdateAll );
+    }
+
+    sal_Bool SAL_CALL SpriteCanvas::updateScreen( sal_Bool bUpdateAll )
+    {
+        SolarMutexGuard aGuard;
+
+        // avoid repaints on hidden window (hidden: not mapped to
+        // screen). Return failure, since the screen really has _not_
+        // been updated (caller should try again later)
+        return mbIsVisible && maCanvasHelper.updateScreen(bUpdateAll,
+                                                                  mbSurfaceDirty);
+    }
+
+    OUString SAL_CALL SpriteCanvas::getServiceName(  )
+    {
+        return "com.sun.star.rendering.SpriteCanvas.VCL";
+    }
+
+    // XServiceInfo
+    css::uno::Sequence<OUString> SpriteCanvas::getSupportedServiceNames()
+    {
+        return { SpriteCanvas::getServiceName() };
+    }
+    OUString SpriteCanvas::getImplementationName()
+    {
+        return "com.sun.star.comp.rendering.SpriteCanvas.VCL";
+    }
+    sal_Bool SpriteCanvas::supportsService(const OUString& sServiceName)
+    {
+        return cppu::supportsService(this, sServiceName);
+    }
+
+    bool SpriteCanvas::repaint( const GraphicObjectSharedPtr&   rGrf,
+                                const rendering::ViewState&     viewState,
+                                const rendering::RenderState&   renderState,
+                                const ::Point&                  rPt,
+                                const ::Size&                   rSz,
+                                const GraphicAttr&              rAttr ) const
+    {
+        SolarMutexGuard aGuard;
+
+        return maCanvasHelper.repaint( rGrf, viewState, renderState, rPt, rSz, rAttr );
+    }
+}
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+com_sun_star_comp_rendering_SpriteCanvas_VCL_get_implementation(
+    css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const& args)
+{
+    rtl::Reference<vclcanvas::SpriteCanvas> p = new vclcanvas::SpriteCanvas(args, context);
+    cppu::acquire(p.get());
+    p->initialize();
+    return static_cast<cppu::OWeakObject*>(p.get());
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/spritecanvas.hxx b/canvas/source/vcl/spritecanvas.hxx
new file mode 100644
index 000000000..8f7c76880
--- /dev/null
+++ b/canvas/source/vcl/spritecanvas.hxx
@@ -0,0 +1,163 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <rtl/ref.hxx>
+
+#include <com/sun/star/uno/XComponentContext.hpp>
+#include <com/sun/star/beans/XPropertySet.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/lang/XServiceName.hpp>
+#include <com/sun/star/awt/XWindowListener.hpp>
+#include <com/sun/star/util/XUpdatable.hpp>
+#include <com/sun/star/rendering/XSpriteCanvas.hpp>
+#include <com/sun/star/rendering/XIntegerBitmap.hpp>
+#include <com/sun/star/rendering/XGraphicDevice.hpp>
+#include <com/sun/star/rendering/XBufferController.hpp>
+
+#include <cppuhelper/compbase.hxx>
+#include <comphelper/uno3.hxx>
+
+#include <base/spritecanvasbase.hxx>
+#include <base/spritesurface.hxx>
+#include <base/disambiguationhelper.hxx>
+#include <base/bufferedgraphicdevicebase.hxx>
+
+#include "spritecanvashelper.hxx"
+#include "impltools.hxx"
+#include "spritedevicehelper.hxx"
+#include "repainttarget.hxx"
+
+
+namespace vclcanvas
+{
+    typedef ::cppu::WeakComponentImplHelper< css::rendering::XSpriteCanvas,
+                                             css::rendering::XIntegerBitmap,
+                                             css::rendering::XGraphicDevice,
+                                             css::lang::XMultiServiceFactory,
+                                             css::rendering::XBufferController,
+                                             css::awt::XWindowListener,
+                                             css::util::XUpdatable,
+                                             css::beans::XPropertySet,
+                                             css::lang::XServiceName,
+                                             css::lang::XServiceInfo >    WindowGraphicDeviceBase_Base;
+    typedef ::canvas::BufferedGraphicDeviceBase< ::canvas::DisambiguationHelper< WindowGraphicDeviceBase_Base >,
+                                                 SpriteDeviceHelper,
+                                                 tools::LocalGuard,
+                                                 ::cppu::OWeakObject >  SpriteCanvasBase_Base;
+
+    /** Mixin SpriteSurface
+
+        Have to mixin the SpriteSurface before deriving from
+        ::canvas::SpriteCanvasBase, as this template should already
+        implement some of those interface methods.
+
+        The reason why this appears kinda convoluted is the fact that
+        we cannot specify non-IDL types as WeakComponentImplHelper
+        template args, and furthermore, don't want to derive
+        ::canvas::SpriteCanvasBase directly from
+        ::canvas::SpriteSurface (because derivees of
+        ::canvas::SpriteCanvasBase have to explicitly forward the
+        XInterface methods (e.g. via DECLARE_UNO3_AGG_DEFAULTS)
+        anyway). Basically, ::canvas::CanvasCustomSpriteBase should
+        remain a base class that provides implementation, not to
+        enforce any specific interface on its derivees.
+     */
+    class SpriteCanvasBaseSpriteSurface_Base : public SpriteCanvasBase_Base,
+                                               public ::canvas::SpriteSurface
+    {
+    };
+
+    typedef ::canvas::SpriteCanvasBase< SpriteCanvasBaseSpriteSurface_Base,
+                                        SpriteCanvasHelper,
+                                        tools::LocalGuard,
+                                        ::cppu::OWeakObject >           SpriteCanvasBaseT;
+
+    /** Product of this component's factory.
+
+        The SpriteCanvas object combines the actual Window canvas with
+        the XGraphicDevice interface. This is because there's a
+        one-to-one relation between them, anyway, since each window
+        can have exactly one canvas and one associated
+        XGraphicDevice. And to avoid messing around with circular
+        references, this is implemented as one single object.
+     */
+    class SpriteCanvas : public SpriteCanvasBaseT,
+                         public RepaintTarget
+    {
+    public:
+        SpriteCanvas( const css::uno::Sequence<
+                            css::uno::Any >&               aArguments,
+                      const css::uno::Reference<
+                            css::uno::XComponentContext >& rxContext );
+
+        void initialize();
+
+        /// For resource tracking
+        virtual ~SpriteCanvas() override;
+
+        /// Dispose all internal references
+        virtual void disposeThis() override;
+
+        // Forwarding the XComponent implementation to the
+        // cppu::ImplHelper templated base
+        //                                    Classname     Base doing refcounting        Base implementing the XComponent interface
+        //                                       |                 |                            |
+        //                                       V                 V                            V
+        DECLARE_UNO3_XCOMPONENT_AGG_DEFAULTS( SpriteCanvas, WindowGraphicDeviceBase_Base, ::cppu::WeakComponentImplHelperBase )
+
+        // XBufferController (partial)
+        virtual sal_Bool SAL_CALL showBuffer( sal_Bool bUpdateAll ) override;
+        virtual sal_Bool SAL_CALL switchBuffer( sal_Bool bUpdateAll ) override;
+
+        // XSpriteCanvas (partial)
+        virtual sal_Bool SAL_CALL updateScreen( sal_Bool bUpdateAll ) override;
+
+        // XServiceName
+        virtual OUString SAL_CALL getServiceName(  ) override;
+
+        // XServiceInfo
+        virtual css::uno::Sequence<OUString> SAL_CALL getSupportedServiceNames() override;
+        virtual OUString SAL_CALL getImplementationName() override;
+        virtual sal_Bool SAL_CALL supportsService(const OUString&) override;
+
+        // RepaintTarget
+        virtual bool repaint( const GraphicObjectSharedPtr&                   rGrf,
+                              const css::rendering::ViewState&   viewState,
+                              const css::rendering::RenderState& renderState,
+                              const ::Point&                                  rPt,
+                              const ::Size&                                   rSz,
+                              const GraphicAttr&                              rAttr ) const override;
+
+        /// Get backbuffer for this canvas
+        OutDevProviderSharedPtr const & getFrontBuffer() const { return maDeviceHelper.getOutDev(); }
+        /// Get window for this canvas
+        BackBufferSharedPtr const & getBackBuffer() const { return maDeviceHelper.getBackBuffer(); }
+
+    private:
+        css::uno::Sequence< css::uno::Any >                maArguments;
+    };
+
+    typedef ::rtl::Reference< SpriteCanvas > SpriteCanvasRef;
+    typedef ::rtl::Reference< SpriteCanvas > DeviceRef;
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/spritecanvashelper.cxx b/canvas/source/vcl/spritecanvashelper.cxx
new file mode 100644
index 000000000..2eb622431
--- /dev/null
+++ b/canvas/source/vcl/spritecanvashelper.cxx
@@ -0,0 +1,661 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+#include <sal/log.hxx>
+
+#include <boost/cast.hpp>
+
+#include <basegfx/range/b2drectangle.hxx>
+#include <rtl/math.hxx>
+#include <tools/diagnose_ex.h>
+#include <vcl/canvastools.hxx>
+#include <vcl/outdev.hxx>
+#include <vcl/window.hxx>
+
+#include <canvas/canvastools.hxx>
+
+#include "canvascustomsprite.hxx"
+#include "spritecanvashelper.hxx"
+#include "spritecanvas.hxx"
+
+using namespace ::com::sun::star;
+
+#define FPS_BOUNDS ::tools::Rectangle(0,0,130,90)
+#define INFO_COLOR COL_RED
+
+namespace vclcanvas
+{
+    namespace
+    {
+        /** Sprite redraw at original position
+
+            Used to repaint the whole canvas (background and all
+            sprites)
+         */
+        void spriteRedraw( OutputDevice&                      rOutDev,
+                           const ::canvas::Sprite::Reference& rSprite )
+        {
+            // downcast to derived vclcanvas::Sprite interface, which
+            // provides the actual redraw methods.
+            ::boost::polymorphic_downcast< Sprite* >(rSprite.get())->redraw(rOutDev,
+                                                                            true);
+        }
+
+        double calcNumPixel( const ::canvas::Sprite::Reference& rSprite )
+        {
+            const ::basegfx::B2DSize& rSize(
+                ::boost::polymorphic_downcast< Sprite* >(rSprite.get())->getSizePixel() );
+
+            return rSize.getX() * rSize.getY();
+        }
+
+        void repaintBackground( OutputDevice&               rOutDev,
+                                OutputDevice const &        rBackBuffer,
+                                const ::basegfx::B2DRange&  rArea )
+        {
+            const ::Point& rPos( vcl::unotools::pointFromB2DPoint( rArea.getMinimum()) );
+            const ::Size& rSize( vcl::unotools::sizeFromB2DSize( rArea.getRange()) );
+
+            rOutDev.DrawOutDev( rPos, rSize, rPos, rSize, rBackBuffer );
+        }
+
+        void opaqueUpdateSpriteArea( const ::canvas::Sprite::Reference& rSprite,
+                                     OutputDevice&                      rOutDev,
+                                     const ::basegfx::B2IRange&         rArea )
+        {
+            const ::tools::Rectangle& rRequestedArea(
+                vcl::unotools::rectangleFromB2IRectangle( rArea ) );
+
+            // clip output to actual update region (otherwise a)
+            // wouldn't save much render time, and b) will clutter
+            // scrolled sprite content outside this area)
+            rOutDev.EnableMapMode( false );
+            rOutDev.SetAntialiasing( AntialiasingFlags::Enable );
+            rOutDev.SetClipRegion(vcl::Region(rRequestedArea));
+
+            // repaint affected sprite directly to output device (at
+            // the actual screen output position)
+            ::boost::polymorphic_downcast< Sprite* >(
+                rSprite.get() )->redraw( rOutDev,
+                                         false ); // rendering
+                                                  // directly to
+                                                  // frontbuffer
+        }
+
+        void renderInfoText( OutputDevice&          rOutDev,
+                             const OUString& rStr,
+                             const Point&           rPos )
+        {
+            vcl::Font aVCLFont;
+            aVCLFont.SetFontHeight( 20 );
+            aVCLFont.SetColor( INFO_COLOR );
+
+            rOutDev.SetTextAlign(ALIGN_TOP);
+            rOutDev.SetTextColor( INFO_COLOR );
+            rOutDev.SetFont( aVCLFont );
+
+            rOutDev.DrawText( rPos, rStr );
+        }
+
+    }
+
+    SpriteCanvasHelper::SpriteCanvasHelper() :
+        mpRedrawManager( nullptr ),
+        mpOwningSpriteCanvas( nullptr ),
+        maVDev(VclPtr<VirtualDevice>::Create()),
+        mbShowFrameInfo( false ),
+        mbShowSpriteBounds( false ),
+        mbIsUnsafeScrolling( false )
+    {
+#if OSL_DEBUG_LEVEL > 0
+        // inverse defaults for verbose debug mode
+        mbShowFrameInfo = true;
+        // this looks like drawing errors, enable only if explicitly asked for
+        static bool enableShowSpriteBounds = getenv("CANVAS_SPRITE_BOUNDS") != nullptr;
+        mbShowSpriteBounds = enableShowSpriteBounds;
+#endif
+    }
+
+    SpriteCanvasHelper::~SpriteCanvasHelper()
+    {
+        SolarMutexGuard aGuard;
+        maVDev.disposeAndClear();
+    }
+
+    void SpriteCanvasHelper::init( const OutDevProviderSharedPtr& rOutDev,
+                                   SpriteCanvas&                  rOwningSpriteCanvas,
+                                   ::canvas::SpriteRedrawManager& rManager,
+                                   bool                           bProtect,
+                                   bool                           bHaveAlpha )
+    {
+        mpOwningSpriteCanvas = &rOwningSpriteCanvas;
+        mpRedrawManager = &rManager;
+
+        CanvasHelper::init(rOwningSpriteCanvas,rOutDev,bProtect,bHaveAlpha);
+    }
+
+    void SpriteCanvasHelper::disposing()
+    {
+        mpRedrawManager = nullptr;
+        mpOwningSpriteCanvas = nullptr;
+
+        // forward to base
+        CanvasHelper::disposing();
+    }
+
+    uno::Reference< rendering::XAnimatedSprite > SpriteCanvasHelper::createSpriteFromAnimation(
+        const uno::Reference< rendering::XAnimation >&  )
+    {
+        return uno::Reference< rendering::XAnimatedSprite >();
+    }
+
+    uno::Reference< rendering::XAnimatedSprite > SpriteCanvasHelper::createSpriteFromBitmaps(
+        const uno::Sequence< uno::Reference< rendering::XBitmap > >& ,
+        sal_Int8                                                      )
+    {
+        return uno::Reference< rendering::XAnimatedSprite >();
+    }
+
+    uno::Reference< rendering::XCustomSprite > SpriteCanvasHelper::createCustomSprite( const geometry::RealSize2D& spriteSize )
+    {
+        if( !mpRedrawManager || !mpDevice )
+            return uno::Reference< rendering::XCustomSprite >(); // we're disposed
+
+        return uno::Reference< rendering::XCustomSprite >(
+            new CanvasCustomSprite( spriteSize,
+                                    *mpDevice,
+                                    mpOwningSpriteCanvas,
+                                    mpOwningSpriteCanvas->getFrontBuffer(),
+                                    mbShowSpriteBounds ) );
+    }
+
+    uno::Reference< rendering::XSprite > SpriteCanvasHelper::createClonedSprite( const uno::Reference< rendering::XSprite >&  )
+    {
+        return uno::Reference< rendering::XSprite >();
+    }
+
+    bool SpriteCanvasHelper::updateScreen( bool bUpdateAll,
+                                           bool&    io_bSurfaceDirty )
+    {
+        if( !mpRedrawManager ||
+            !mpOwningSpriteCanvas ||
+            !mpOwningSpriteCanvas->getFrontBuffer() ||
+            !mpOwningSpriteCanvas->getBackBuffer() )
+        {
+            return false; // disposed, or otherwise dysfunctional
+        }
+
+        // commit to backbuffer
+        flush();
+
+        OutputDevice&       rOutDev( mpOwningSpriteCanvas->getFrontBuffer()->getOutDev() );
+        BackBufferSharedPtr pBackBuffer( mpOwningSpriteCanvas->getBackBuffer() );
+        OutputDevice&       rBackOutDev( pBackBuffer->getOutDev() );
+
+        // actual OutputDevice is a shared resource - restore its
+        // state when done.
+        tools::OutDevStateKeeper aStateKeeper( rOutDev );
+
+        const Size  aOutDevSize( rBackOutDev.GetOutputSizePixel() );
+        const Point aEmptyPoint(0,0);
+
+        vcl::Window* pTargetWindow = nullptr;
+        if( rOutDev.GetOutDevType() == OUTDEV_WINDOW )
+        {
+            pTargetWindow = rOutDev.GetOwnerWindow(); // TODO(Q3): Evil downcast.
+
+            // we're double-buffered, thus no need for paint area-limiting
+            // clips. besides that, will interfere with animations (as for
+            // Window-invalidate repaints, only parts of the window will
+            // be redrawn otherwise)
+            const vcl::Region aFullWindowRegion( ::tools::Rectangle(aEmptyPoint,
+                                                      aOutDevSize) );
+            pTargetWindow->ExpandPaintClipRegion(aFullWindowRegion);
+        }
+
+        // TODO(P1): Might be worthwhile to track areas of background
+        // changes, too.
+        if( !bUpdateAll && !io_bSurfaceDirty )
+        {
+            if( mbShowFrameInfo )
+            {
+                // also repaint background below frame counter (fake
+                // that as a sprite vanishing in this area)
+                mpRedrawManager->updateSprite( ::canvas::Sprite::Reference(),
+                                               ::basegfx::B2DPoint(),
+                                               ::basegfx::B2DRectangle( 0.0, 0.0,
+                                                                        FPS_BOUNDS.Right(),
+                                                                        FPS_BOUNDS.Bottom() ) );
+            }
+
+            // background has not changed, so we're free to optimize
+            // repaint to areas where a sprite has changed
+
+            // process each independent area of overlapping sprites
+            // separately.
+            mpRedrawManager->forEachSpriteArea( *this );
+        }
+        else
+        {
+            // background has changed, so we currently have no choice
+            // but repaint everything (or caller requested that)
+
+            maVDev->SetOutputSizePixel( aOutDevSize );
+            maVDev->EnableMapMode( false );
+            maVDev->DrawOutDev( aEmptyPoint, aOutDevSize,
+                                aEmptyPoint, aOutDevSize,
+                                rBackOutDev );
+
+            // repaint all active sprites on top of background into
+            // VDev.
+            OutputDevice& rTmpOutDev( *maVDev );
+            mpRedrawManager->forEachSprite(
+                    [&rTmpOutDev]( const ::canvas::Sprite::Reference& rSprite )
+                    { spriteRedraw( rTmpOutDev, rSprite ); }
+                    );
+
+            // flush to screen
+            rOutDev.EnableMapMode( false );
+            rOutDev.SetAntialiasing( AntialiasingFlags::Enable );
+            rOutDev.SetClipRegion();
+            rOutDev.DrawOutDev( aEmptyPoint, aOutDevSize,
+                                aEmptyPoint, aOutDevSize,
+                                *maVDev );
+        }
+
+        // change record vector must be cleared, for the next turn of
+        // rendering and sprite changing
+        mpRedrawManager->clearChangeRecords();
+
+        io_bSurfaceDirty = false;
+
+        if( mbShowFrameInfo )
+        {
+            renderFrameCounter( rOutDev );
+            renderSpriteCount( rOutDev );
+            renderMemUsage( rOutDev );
+        }
+
+#if OSL_DEBUG_LEVEL > 0
+        static ::canvas::tools::ElapsedTime aElapsedTime;
+
+        // log time immediately after surface flip
+        SAL_INFO("canvas.vcl", "SpriteCanvasHelper::updateScreen(): flip done at " <<
+                   aElapsedTime.getElapsedTime() );
+#endif
+
+        // sync output with screen, to ensure that we don't queue up
+        // render requests (calling code might rely on timing,
+        // i.e. assume that things are visible on screen after
+        // updateScreen() returns).
+        if( pTargetWindow )
+        {
+            // commit to screen
+            pTargetWindow->GetOutDev()->Flush();
+        }
+
+        return true;
+    }
+
+    void SpriteCanvasHelper::backgroundPaint( const ::basegfx::B2DRange& rUpdateRect )
+    {
+        ENSURE_OR_THROW( mpOwningSpriteCanvas &&
+                         mpOwningSpriteCanvas->getBackBuffer() &&
+                         mpOwningSpriteCanvas->getFrontBuffer(),
+                         "SpriteCanvasHelper::backgroundPaint(): NULL device pointer " );
+
+        OutputDevice&       rOutDev( mpOwningSpriteCanvas->getFrontBuffer()->getOutDev() );
+        BackBufferSharedPtr pBackBuffer( mpOwningSpriteCanvas->getBackBuffer() );
+        OutputDevice&       rBackOutDev( pBackBuffer->getOutDev() );
+
+        repaintBackground( rOutDev, rBackOutDev, rUpdateRect );
+    }
+
+    void SpriteCanvasHelper::scrollUpdate( const ::basegfx::B2DRange&                       rMoveStart,
+                                           const ::basegfx::B2DRange&                       rMoveEnd,
+                                           const ::canvas::SpriteRedrawManager::UpdateArea& rUpdateArea )
+    {
+        ENSURE_OR_THROW( mpOwningSpriteCanvas &&
+                         mpOwningSpriteCanvas->getBackBuffer() &&
+                         mpOwningSpriteCanvas->getFrontBuffer(),
+                         "SpriteCanvasHelper::scrollUpdate(): NULL device pointer " );
+
+        OutputDevice&       rOutDev( mpOwningSpriteCanvas->getFrontBuffer()->getOutDev() );
+        BackBufferSharedPtr pBackBuffer( mpOwningSpriteCanvas->getBackBuffer() );
+        OutputDevice&       rBackOutDev( pBackBuffer->getOutDev() );
+
+        const Size&                rTargetSizePixel( rOutDev.GetOutputSizePixel() );
+        const ::basegfx::B2IRange  aOutputBounds( 0,0,
+                                                  rTargetSizePixel.Width(),
+                                                  rTargetSizePixel.Height() );
+
+        // round rectangles to integer pixel. Note: have to be
+        // extremely careful here, to avoid off-by-one errors for
+        // the destination area: otherwise, the next scroll update
+        // would copy pixel that are not supposed to be part of
+        // the sprite.
+        ::basegfx::B2IRange aSourceRect(
+            ::canvas::tools::spritePixelAreaFromB2DRange( rMoveStart ) );
+        const ::basegfx::B2IRange& rDestRect(
+            ::canvas::tools::spritePixelAreaFromB2DRange( rMoveEnd ) );
+        ::basegfx::B2IPoint aDestPos( rDestRect.getMinimum() );
+
+        std::vector< ::basegfx::B2IRange > aUnscrollableAreas;
+
+        // Since strictly speaking, this scroll algorithm is plain
+        // buggy, the scrolled area might actually lie _below_ another
+        // window - we've made this feature configurable via
+        // mbIsUnsafeScrolling.
+
+        // clip to output bounds (cannot properly scroll stuff
+        // _outside_ our screen area)
+        if( !mbIsUnsafeScrolling ||
+            !::canvas::tools::clipScrollArea( aSourceRect,
+                                              aDestPos,
+                                              aUnscrollableAreas,
+                                              aOutputBounds ) )
+        {
+            // fully clipped scroll area: cannot simply scroll
+            // then. Perform normal opaque update (can use that, since
+            // one of the preconditions for scrollable update is
+            // opaque sprite content)
+
+            // repaint all affected sprites directly to output device
+            for( const auto& rComponent : rUpdateArea.maComponentList )
+            {
+                const ::canvas::Sprite::Reference& rSprite( rComponent.second.getSprite() );
+
+                if( rSprite.is() )
+                    ::boost::polymorphic_downcast< Sprite* >(
+                        rSprite.get() )->redraw( rOutDev,
+                                                 false );
+            }
+        }
+        else
+        {
+            // scroll rOutDev content
+            rOutDev.CopyArea( vcl::unotools::pointFromB2IPoint( aDestPos ),
+                              vcl::unotools::pointFromB2IPoint( aSourceRect.getMinimum() ),
+                              // TODO(Q2): use numeric_cast to check range
+                              ::Size( static_cast<sal_Int32>(aSourceRect.getRange().getX()),
+                                      static_cast<sal_Int32>(aSourceRect.getRange().getY()) ) );
+
+            const ::canvas::SpriteRedrawManager::SpriteConnectedRanges::ComponentListType::const_iterator
+                aFirst( rUpdateArea.maComponentList.begin() );
+
+            ENSURE_OR_THROW( aFirst->second.getSprite().is(),
+                              "VCLCanvas::scrollUpdate(): no sprite" );
+
+            // repaint uncovered areas from sprite. Need to actually
+            // clip here, since we're only repainting _parts_ of the
+            // sprite
+            rOutDev.Push( vcl::PushFlags::CLIPREGION );
+
+            for( const auto& rArea : aUnscrollableAreas )
+                opaqueUpdateSpriteArea( aFirst->second.getSprite(),
+                                        rOutDev, rArea );
+
+            rOutDev.Pop();
+        }
+
+        // repaint uncovered areas from backbuffer - take the
+        // _rounded_ rectangles from above, to have the update
+        // consistent with the scroll above.
+        std::vector< ::basegfx::B2DRange > aUncoveredAreas;
+        ::basegfx::computeSetDifference( aUncoveredAreas,
+                                         rUpdateArea.maTotalBounds,
+                                         ::basegfx::B2DRange( rDestRect ) );
+
+        for( const auto& rArea : aUncoveredAreas )
+            repaintBackground( rOutDev, rBackOutDev, rArea );
+    }
+
+    void SpriteCanvasHelper::opaqueUpdate( SAL_UNUSED_PARAMETER const ::basegfx::B2DRange&,
+                                           const std::vector< ::canvas::Sprite::Reference >& rSortedUpdateSprites )
+    {
+        ENSURE_OR_THROW( mpOwningSpriteCanvas &&
+                         mpOwningSpriteCanvas->getBackBuffer() &&
+                         mpOwningSpriteCanvas->getFrontBuffer(),
+                         "SpriteCanvasHelper::opaqueUpdate(): NULL device pointer " );
+
+        OutputDevice& rOutDev( mpOwningSpriteCanvas->getFrontBuffer()->getOutDev() );
+
+        // no need to clip output to actual update region - there will
+        // always be ALL sprites contained in the rectangular update
+        // area contained in rTotalArea (that's the way
+        // B2DConnectedRanges work). If rTotalArea appears to be
+        // smaller than the sprite - then this sprite carries a clip,
+        // and the update will be constrained to that rect.
+
+        // repaint all affected sprites directly to output device
+        for( const auto& rSprite : rSortedUpdateSprites )
+        {
+            if( rSprite.is() )
+                ::boost::polymorphic_downcast< Sprite* >(
+                    rSprite.get() )->redraw( rOutDev,
+                                             false );
+        }
+    }
+
+    void SpriteCanvasHelper::genericUpdate( const ::basegfx::B2DRange&                          rRequestedArea,
+                                            const std::vector< ::canvas::Sprite::Reference >& rSortedUpdateSprites )
+    {
+        ENSURE_OR_THROW( mpOwningSpriteCanvas &&
+                         mpOwningSpriteCanvas->getBackBuffer() &&
+                         mpOwningSpriteCanvas->getFrontBuffer(),
+                         "SpriteCanvasHelper::genericUpdate(): NULL device pointer " );
+
+        OutputDevice&       rOutDev( mpOwningSpriteCanvas->getFrontBuffer()->getOutDev() );
+        BackBufferSharedPtr pBackBuffer( mpOwningSpriteCanvas->getBackBuffer() );
+        OutputDevice&       rBackOutDev( pBackBuffer->getOutDev() );
+
+        // limit size of update VDev to target outdev's size
+        const Size& rTargetSizePixel( rOutDev.GetOutputSizePixel() );
+
+        // round output position towards zero. Don't want to truncate
+        // a fraction of a sprite pixel...  Clip position at origin,
+        // otherwise, truncation of size below might leave visible
+        // areas uncovered by VDev.
+        const ::Point aOutputPosition(
+            std::max( sal_Int32( 0 ),
+                        static_cast< sal_Int32 >(rRequestedArea.getMinX()) ),
+            std::max( sal_Int32( 0 ),
+                        static_cast< sal_Int32 >(rRequestedArea.getMinY()) ) );
+        // round output size towards +infty. Don't want to truncate a
+        // fraction of a sprite pixel... Limit coverage of VDev to
+        // output device's area (i.e. not only to total size, but to
+        // cover _only_ the visible parts).
+        const ::Size aOutputSize(
+            std::max( sal_Int32( 0 ),
+                        std::min( static_cast< sal_Int32 >(rTargetSizePixel.Width() - aOutputPosition.X()),
+                                    ::canvas::tools::roundUp( rRequestedArea.getMaxX() - aOutputPosition.X() ))),
+            std::max( sal_Int32( 0 ),
+                        std::min( static_cast< sal_Int32 >(rTargetSizePixel.Height() - aOutputPosition.Y()),
+                                    ::canvas::tools::roundUp( rRequestedArea.getMaxY() - aOutputPosition.Y() ))));
+
+        // early exit for empty output area.
+        if( aOutputSize.Width() == 0 &&
+            aOutputSize.Height() == 0 )
+        {
+            return;
+        }
+
+        const Point aEmptyPoint(0,0);
+        const Size  aCurrOutputSize( maVDev->GetOutputSizePixel() );
+
+        // adapt maVDev's size to the area that actually needs the
+        // repaint.
+        if( aCurrOutputSize.Width() < aOutputSize.Width() ||
+            aCurrOutputSize.Height() < aOutputSize.Height() )
+        {
+            // TODO(P1): Come up with a clever tactic to reduce maVDev
+            // from time to time. Reduction with threshold (say, if
+            // maVDev is more than twice too large) is not wise, as
+            // this might then toggle within the same updateScreen(),
+            // but for different disjunct sprite areas.
+            maVDev->SetOutputSizePixel( aOutputSize );
+        }
+
+        // paint background
+        maVDev->EnableMapMode( false );
+        maVDev->SetAntialiasing( AntialiasingFlags::Enable );
+        maVDev->SetClipRegion();
+        maVDev->DrawOutDev( aEmptyPoint, aOutputSize,
+                            aOutputPosition, aOutputSize,
+                            rBackOutDev );
+
+        // repaint all affected sprites on top of background into
+        // VDev.
+        for( const auto& rSprite : rSortedUpdateSprites )
+        {
+            if( rSprite.is() )
+            {
+                Sprite* pSprite = ::boost::polymorphic_downcast< Sprite* >( rSprite.get() );
+
+                // calc relative sprite position in rUpdateArea (which
+                // need not be the whole screen!)
+                const ::basegfx::B2DPoint& rSpriteScreenPos( pSprite->getPosPixel() );
+                const ::basegfx::B2DPoint& rSpriteRenderPos(
+                        rSpriteScreenPos - vcl::unotools::b2DPointFromPoint(aOutputPosition)
+                        );
+
+                pSprite->redraw( *maVDev, rSpriteRenderPos, true );
+            }
+        }
+
+        // flush to screen
+        rOutDev.EnableMapMode( false );
+        rOutDev.SetAntialiasing( AntialiasingFlags::Enable );
+        rOutDev.DrawOutDev( aOutputPosition, aOutputSize,
+                            aEmptyPoint, aOutputSize,
+                            *maVDev );
+    }
+
+    void SpriteCanvasHelper::renderFrameCounter( OutputDevice& rOutDev )
+    {
+        const double denominator( maLastUpdate.getElapsedTime() );
+        maLastUpdate.reset();
+
+        OUString text( ::rtl::math::doubleToUString( denominator == 0.0 ? 100.0 : 1.0/denominator,
+                                                            rtl_math_StringFormat_F,
+                                                            2,'.',nullptr,' ') );
+
+        // pad with leading space
+        while( text.getLength() < 6 )
+            text = " " + text;
+
+        text += " fps";
+
+        renderInfoText( rOutDev,
+                        text,
+                        Point(0, 0) );
+    }
+
+    namespace
+    {
+        template< typename T > struct Adder
+        {
+            typedef void result_type;
+
+            Adder( T& rAdderTarget,
+                   T  nIncrement ) :
+                mpTarget( &rAdderTarget ),
+                mnIncrement( nIncrement )
+            {
+            }
+
+            void operator()( const ::canvas::Sprite::Reference& ) { *mpTarget += mnIncrement; }
+            void operator()( T nIncrement ) { *mpTarget += nIncrement; }
+
+            T* mpTarget;
+            T  mnIncrement;
+        };
+
+        template< typename T> Adder<T> makeAdder( T& rAdderTarget,
+                                                  T  nIncrement )
+        {
+            return Adder<T>(rAdderTarget, nIncrement);
+        }
+    }
+
+    void SpriteCanvasHelper::renderSpriteCount( OutputDevice& rOutDev )
+    {
+        if( !mpRedrawManager )
+            return;
+
+        sal_Int32 nCount(0);
+
+        mpRedrawManager->forEachSprite( makeAdder(nCount,sal_Int32(1)) );
+        OUString text( OUString::number(nCount) );
+
+        // pad with leading space
+        while( text.getLength() < 3 )
+            text = " " + text;
+
+        text = "Sprites: " + text;
+
+        renderInfoText( rOutDev,
+                        text,
+                        Point(0, 30) );
+    }
+
+    void SpriteCanvasHelper::renderMemUsage( OutputDevice& rOutDev )
+    {
+        BackBufferSharedPtr pBackBuffer( mpOwningSpriteCanvas->getBackBuffer() );
+
+        if( !(mpRedrawManager &&
+            pBackBuffer) )
+            return;
+
+        double nPixel(0.0);
+
+        // accumulate pixel count for each sprite into fCount
+        mpRedrawManager->forEachSprite(
+                [&nPixel]( const ::canvas::Sprite::Reference& rSprite )
+                { makeAdder( nPixel, 1.0 )( calcNumPixel(rSprite) ); }
+                );
+
+        static const int NUM_VIRDEV(2);
+        static const int BYTES_PER_PIXEL(3);
+
+        const Size& rVDevSize( maVDev->GetOutputSizePixel() );
+        const Size& rBackBufferSize( pBackBuffer->getOutDev().GetOutputSizePixel() );
+
+        const double nMemUsage( nPixel * NUM_VIRDEV * BYTES_PER_PIXEL +
+                                rVDevSize.Width()*rVDevSize.Height() * BYTES_PER_PIXEL +
+                                rBackBufferSize.Width()*rBackBufferSize.Height() * BYTES_PER_PIXEL );
+
+        OUString text( ::rtl::math::doubleToUString( nMemUsage / 1048576.0,
+                                                            rtl_math_StringFormat_F,
+                                                            2,'.',nullptr,' ') );
+
+        // pad with leading space
+        while( text.getLength() < 4 )
+            text = " " + text;
+
+        text = "Mem: " + text + "MB";
+
+        renderInfoText( rOutDev,
+                        text,
+                        Point(0, 60) );
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/spritecanvashelper.hxx b/canvas/source/vcl/spritecanvashelper.hxx
new file mode 100644
index 000000000..af3f5526a
--- /dev/null
+++ b/canvas/source/vcl/spritecanvashelper.hxx
@@ -0,0 +1,169 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <com/sun/star/rendering/XAnimatedSprite.hpp>
+#include <com/sun/star/rendering/XAnimation.hpp>
+#include <com/sun/star/rendering/XCustomSprite.hpp>
+
+#include <vcl/vclptr.hxx>
+#include <vcl/virdev.hxx>
+
+#include <spriteredrawmanager.hxx>
+#include <canvas/elapsedtime.hxx>
+#include "canvashelper.hxx"
+
+
+namespace vclcanvas
+{
+    class SpriteCanvas;
+
+    class SpriteCanvasHelper : public CanvasHelper
+    {
+    public:
+        SpriteCanvasHelper();
+        ~SpriteCanvasHelper();
+
+        void init( const OutDevProviderSharedPtr& rOutDev,
+                   SpriteCanvas&                  rOwningSpriteCanvas,
+                   ::canvas::SpriteRedrawManager& rManager,
+                   bool                           bProtect,
+                   bool                           bHaveAlpha );
+
+        /// Dispose all internal references
+        void disposing();
+
+        // XSpriteCanvas
+        css::uno::Reference<
+              css::rendering::XAnimatedSprite >        createSpriteFromAnimation(
+                const css::uno::Reference< css::rendering::XAnimation >& animation );
+
+        css::uno::Reference<
+              css::rendering::XAnimatedSprite >        createSpriteFromBitmaps(
+                const css::uno::Sequence<
+                      css::uno::Reference<
+                            css::rendering::XBitmap > >& animationBitmaps,
+                sal_Int8                                              interpolationMode );
+
+        css::uno::Reference<
+              css::rendering::XCustomSprite >      createCustomSprite(
+                const css::geometry::RealSize2D& spriteSize );
+
+        css::uno::Reference<
+              css::rendering::XSprite >                createClonedSprite(
+                const css::uno::Reference< css::rendering::XSprite >& original );
+
+        /** Actually perform the screen update
+
+            @param bUpdateAll
+            sal_True, if everything must be updated, not only changed
+            sprites
+
+            @param io_bSurfaceDirty
+            In/out parameter, whether backbuffer surface is dirty (if
+            yes, we're performing a full update, anyway)
+         */
+        bool updateScreen( bool bUpdateAll,
+                           bool&    io_bSurfaceDirty );
+
+        // SpriteRedrawManager functor calls
+
+
+        /** Gets called for simple background repaints
+         */
+        void backgroundPaint( const ::basegfx::B2DRange& rUpdateRect );
+
+        /** Gets called when area can be handled by scrolling.
+
+            Called method must copy screen content from rMoveStart to
+            rMoveEnd, and restore the background in the uncovered
+            areas.
+
+            @param rMoveStart
+            Source rect of the scroll
+
+            @param rMoveEnd
+            Dest rect of the scroll
+
+            @param rUpdateArea
+            All info necessary, should rMoveStart be partially or
+            fully outside the outdev
+         */
+        void scrollUpdate( const ::basegfx::B2DRange&                           rMoveStart,
+                           const ::basegfx::B2DRange&                           rMoveEnd,
+                           const ::canvas::SpriteRedrawManager::UpdateArea&     rUpdateArea );
+
+        void opaqueUpdate( const ::basegfx::B2DRange&                          rTotalArea,
+                           const std::vector< ::canvas::Sprite::Reference >& rSortedUpdateSprites );
+
+        void genericUpdate( const ::basegfx::B2DRange&                          rTotalArea,
+                            const std::vector< ::canvas::Sprite::Reference >& rSortedUpdateSprites );
+
+        css::uno::Any isUnsafeScrolling() const
+        {
+            return css::uno::Any(mbIsUnsafeScrolling);
+        }
+        void enableUnsafeScrolling( const css::uno::Any& rAny )
+        {
+            mbIsUnsafeScrolling = rAny.get<bool>();
+        }
+
+        css::uno::Any isSpriteBounds() const
+        {
+            return css::uno::Any(mbShowSpriteBounds);
+        }
+        void enableSpriteBounds( const css::uno::Any& rAny )
+        {
+            mbShowSpriteBounds = rAny.get<bool>();
+        }
+
+    private:
+        void renderFrameCounter( OutputDevice& rOutDev );
+        void renderSpriteCount( OutputDevice& rOutDev );
+        void renderMemUsage( OutputDevice& rOutDev );
+
+        /// Set from the SpriteCanvas: instance coordinating sprite redraw
+        ::canvas::SpriteRedrawManager*                  mpRedrawManager;
+
+        /// Set from the init method. used to generate sprites
+        SpriteCanvas*                                   mpOwningSpriteCanvas;
+
+        /** Background compositing surface.
+
+            Typically, sprites will be composited in the background,
+            before pushing them to screen. This happens here.
+         */
+        VclPtr< VirtualDevice > maVDev;
+
+        /// For the frame counter timings
+        ::canvas::tools::ElapsedTime                    maLastUpdate;
+
+        /// When true, canvas displays debug info on each frame
+        bool                                            mbShowFrameInfo;
+
+        /// When true, canvas creates all new sprites with red lines in the corners
+        bool                                            mbShowSpriteBounds;
+
+        /// When true, canvas uses the scroll optimization (direct scrolls in front buffer)
+        bool                                            mbIsUnsafeScrolling;
+    };
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/spritedevicehelper.cxx b/canvas/source/vcl/spritedevicehelper.cxx
new file mode 100644
index 000000000..99f8b1914
--- /dev/null
+++ b/canvas/source/vcl/spritedevicehelper.cxx
@@ -0,0 +1,119 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <osl/diagnose.h>
+#include <vcl/bitmapex.hxx>
+#include <vcl/dibtools.hxx>
+#include <tools/stream.hxx>
+
+#include "spritedevicehelper.hxx"
+#include "impltools.hxx"
+
+using namespace ::com::sun::star;
+
+namespace vclcanvas
+{
+    SpriteDeviceHelper::SpriteDeviceHelper()
+    {
+    }
+
+    void SpriteDeviceHelper::init( const OutDevProviderSharedPtr& pOutDev )
+    {
+        DeviceHelper::init(pOutDev);
+
+        // setup back buffer
+        OutputDevice& rOutDev( pOutDev->getOutDev() );
+        mpBackBuffer = std::make_shared<BackBuffer>( rOutDev );
+        mpBackBuffer->setSize( rOutDev.GetOutputSizePixel() );
+
+        tools::SetDefaultDeviceAntiAliasing( &mpBackBuffer->getOutDev());
+    }
+
+    bool SpriteDeviceHelper::showBuffer( bool, bool )
+    {
+        OSL_FAIL("Not supposed to be called, handled by SpriteCanvas");
+        return false;
+    }
+
+    bool SpriteDeviceHelper::switchBuffer( bool, bool )
+    {
+        OSL_FAIL("Not supposed to be called, handled by SpriteCanvas");
+        return false;
+    }
+
+    void SpriteDeviceHelper::disposing()
+    {
+        // release all references
+        mpBackBuffer.reset();
+
+        DeviceHelper::disposing();
+    }
+
+    uno::Any SpriteDeviceHelper::isAccelerated() const
+    {
+        return DeviceHelper::isAccelerated();
+    }
+
+    uno::Any SpriteDeviceHelper::getDeviceHandle() const
+    {
+        return DeviceHelper::getDeviceHandle();
+    }
+
+    uno::Any SpriteDeviceHelper::getSurfaceHandle() const
+    {
+        if( !mpBackBuffer )
+            return uno::Any();
+
+        return uno::Any(
+            reinterpret_cast< sal_Int64 >(&mpBackBuffer->getOutDev()) );
+    }
+
+    void SpriteDeviceHelper::notifySizeUpdate( const awt::Rectangle& rBounds )
+    {
+        if( mpBackBuffer )
+            mpBackBuffer->setSize( ::Size(rBounds.Width,
+                                          rBounds.Height) );
+    }
+
+    void SpriteDeviceHelper::dumpScreenContent() const
+    {
+        DeviceHelper::dumpScreenContent();
+
+        static sal_Int32 nFilePostfixCount(0);
+
+        if( mpBackBuffer )
+        {
+            OUString aFilename = "dbg_backbuffer" + OUString::number(nFilePostfixCount) + ".bmp";
+
+            SvFileStream aStream( aFilename, StreamMode::STD_READWRITE );
+
+            const ::Point aEmptyPoint;
+            mpBackBuffer->getOutDev().EnableMapMode( false );
+            mpBackBuffer->getOutDev().SetAntialiasing( AntialiasingFlags::Enable );
+            WriteDIB(mpBackBuffer->getOutDev().GetBitmapEx(aEmptyPoint, mpBackBuffer->getOutDev().GetOutputSizePixel()), aStream, false);
+        }
+
+        ++nFilePostfixCount;
+    }
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/spritedevicehelper.hxx b/canvas/source/vcl/spritedevicehelper.hxx
new file mode 100644
index 000000000..5f4ef570a
--- /dev/null
+++ b/canvas/source/vcl/spritedevicehelper.hxx
@@ -0,0 +1,60 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <com/sun/star/awt/Rectangle.hpp>
+
+#include "backbuffer.hxx"
+#include "devicehelper.hxx"
+
+
+/* Definition of DeviceHelper class */
+
+namespace vclcanvas
+{
+    class SpriteDeviceHelper : public DeviceHelper
+    {
+    public:
+        SpriteDeviceHelper();
+
+        void init( const OutDevProviderSharedPtr& rOutDev );
+
+        /// Dispose all internal references
+        void disposing();
+
+        bool  showBuffer( bool bWindowVisible, bool bUpdateAll );
+        bool  switchBuffer( bool bWindowVisible, bool bUpdateAll );
+
+        css::uno::Any isAccelerated() const;
+        css::uno::Any getDeviceHandle() const;
+        css::uno::Any getSurfaceHandle() const;
+
+        void dumpScreenContent() const;
+        const BackBufferSharedPtr& getBackBuffer() const { return mpBackBuffer; }
+
+        void notifySizeUpdate( const css::awt::Rectangle& rBounds );
+
+    private:
+        /// This buffer holds the background content for all associated canvases
+        BackBufferSharedPtr     mpBackBuffer;
+    };
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/spritehelper.cxx b/canvas/source/vcl/spritehelper.cxx
new file mode 100644
index 000000000..8e8d88ac3
--- /dev/null
+++ b/canvas/source/vcl/spritehelper.cxx
@@ -0,0 +1,231 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+#include <sal/log.hxx>
+
+#include <basegfx/matrix/b2dhommatrix.hxx>
+#include <basegfx/numeric/ftools.hxx>
+#include <basegfx/point/b2dpoint.hxx>
+#include <basegfx/range/b2drectangle.hxx>
+#include <basegfx/utils/canvastools.hxx>
+#include <rtl/math.hxx>
+#include <tools/diagnose_ex.h>
+#include <vcl/alpha.hxx>
+#include <vcl/bitmapex.hxx>
+#include <vcl/canvastools.hxx>
+#include <vcl/outdev.hxx>
+
+#include <canvas/canvastools.hxx>
+
+#include "spritehelper.hxx"
+
+using namespace ::com::sun::star;
+
+
+namespace vclcanvas
+{
+    SpriteHelper::SpriteHelper() :
+        mbShowSpriteBounds(false)
+    {
+    }
+
+    void SpriteHelper::init( const geometry::RealSize2D&               rSpriteSize,
+                             const ::canvas::SpriteSurface::Reference& rOwningSpriteCanvas,
+                             const BackBufferSharedPtr&                rBackBuffer,
+                             const BackBufferSharedPtr&                rBackBufferMask,
+                             bool                                      bShowSpriteBounds )
+    {
+        ENSURE_OR_THROW( rOwningSpriteCanvas && rBackBuffer && rBackBufferMask,
+                         "SpriteHelper::init(): Invalid sprite canvas or back buffer" );
+
+        mpBackBuffer        = rBackBuffer;
+        mpBackBufferMask    = rBackBufferMask;
+        mbShowSpriteBounds  = bShowSpriteBounds;
+
+        init( rSpriteSize, rOwningSpriteCanvas );
+    }
+
+    void SpriteHelper::disposing()
+    {
+        mpBackBuffer.reset();
+        mpBackBufferMask.reset();
+
+        // forward to parent
+        CanvasCustomSpriteHelper::disposing();
+    }
+
+    void SpriteHelper::redraw( OutputDevice&                rTargetSurface,
+                               const ::basegfx::B2DPoint&   rPos,
+                               bool&                        io_bSurfacesDirty,
+                               bool                         /*bBufferedUpdate*/ ) const
+    {
+        if( !mpBackBuffer ||
+            !mpBackBufferMask )
+        {
+            return; // we're disposed
+        }
+
+        // log output pos in device pixel
+        SAL_INFO("canvas.vcl", "SpriteHelper::redraw(): output pos is (" <<
+                 rPos.getX() << "," << rPos.getY() << ")");
+
+        const double fAlpha( getAlpha() );
+
+        if( !isActive() || ::basegfx::fTools::equalZero( fAlpha ) )
+            return;
+
+        const ::basegfx::B2DVector& rOrigOutputSize( getSizePixel() );
+
+        // might get changed below (e.g. adapted for
+        // transformations). IMPORTANT: both position and size are
+        // rounded to integer values. From now on, only those
+        // rounded values are used, to keep clip and content in
+        // sync.
+        ::Size  aOutputSize( vcl::unotools::sizeFromB2DSize( rOrigOutputSize ) );
+        ::Point aOutPos( vcl::unotools::pointFromB2DPoint( rPos ) );
+
+
+        // TODO(F3): Support for alpha-VDev
+
+        // Do we have to update our bitmaps (necessary if virdev
+        // was painted to, or transformation changed)?
+        const bool bNeedBitmapUpdate( io_bSurfacesDirty ||
+                                      hasTransformChanged() ||
+                                      maContent->IsEmpty() );
+
+        // updating content of sprite cache - surface is no
+        // longer dirty in relation to our cache
+        io_bSurfacesDirty = false;
+        transformUpdated();
+
+        if( bNeedBitmapUpdate )
+        {
+            const Point aEmptyPoint;
+            BitmapEx aBmp( mpBackBuffer->getOutDev().GetBitmapEx( aEmptyPoint,
+                                                              aOutputSize ) );
+
+            if( isContentFullyOpaque() )
+            {
+                // optimized case: content canvas is fully
+                // opaque. Note: since we retrieved aBmp directly
+                // from an OutDev, it's already a 'display bitmap'
+                // on windows.
+                maContent = aBmp;
+            }
+            else
+            {
+                // sprite content might contain alpha, create
+                // BmpEx, then.
+                BitmapEx aMask( mpBackBufferMask->getOutDev().GetBitmapEx( aEmptyPoint,
+                                                                       aOutputSize ) );
+
+                // Note: since we retrieved aBmp and aMask
+                // directly from an OutDev, it's already a
+                // 'display bitmap' on windows.
+                maContent = BitmapEx( aBmp.GetBitmap(), AlphaMask( aMask.GetBitmap()) );
+            }
+        }
+
+        ::basegfx::B2DHomMatrix aTransform( getTransformation() );
+
+        rTargetSurface.Push( vcl::PushFlags::CLIPREGION );
+
+        // apply clip (if any)
+        if( getClip().is() )
+        {
+            ::basegfx::B2DPolyPolygon aClipPoly(
+                ::basegfx::unotools::b2DPolyPolygonFromXPolyPolygon2D(
+                    getClip() ));
+
+            if( aClipPoly.count() )
+            {
+                // Move the clip to the final sprite output position.
+                ::basegfx::B2DHomMatrix aClipTransform( aTransform );
+                aClipTransform.translate( aOutPos.X(), aOutPos.Y() );
+                aClipPoly.transform( aClipTransform );
+
+                if( mbShowSpriteBounds )
+                {
+                    // Paint green sprite clip area
+                    rTargetSurface.SetLineColor( Color( 0,255,0 ) );
+                    rTargetSurface.SetFillColor();
+
+                    rTargetSurface.DrawPolyPolygon(::tools::PolyPolygon(aClipPoly)); // #i76339#
+                }
+
+                vcl::Region aClipRegion( aClipPoly );
+                rTargetSurface.SetClipRegion( aClipRegion );
+            }
+        }
+
+        ::basegfx::B2DHomMatrix aSizeTransform, aMoveTransform;
+        aSizeTransform.scale( aOutputSize.Width(), aOutputSize.Height() );
+        aMoveTransform.translate( aOutPos.X(), aOutPos.Y() );
+        aTransform = aMoveTransform * aTransform * aSizeTransform;
+
+        rTargetSurface.DrawTransformedBitmapEx( aTransform, *maContent, fAlpha );
+
+        rTargetSurface.Pop();
+
+        if( !mbShowSpriteBounds )
+            return;
+
+        ::tools::PolyPolygon aMarkerPoly(
+            ::canvas::tools::getBoundMarksPolyPolygon(
+                ::basegfx::B2DRectangle(aOutPos.X(),
+                                        aOutPos.Y(),
+                                        aOutPos.X() + aOutputSize.Width()-1,
+                                        aOutPos.Y() + aOutputSize.Height()-1) ) );
+
+        // Paint little red sprite area markers
+        rTargetSurface.SetLineColor( COL_RED );
+        rTargetSurface.SetFillColor();
+
+        for( int i=0; i<aMarkerPoly.Count(); ++i )
+        {
+            rTargetSurface.DrawPolyLine( aMarkerPoly.GetObject(static_cast<sal_uInt16>(i)) );
+        }
+
+        // paint sprite prio
+        vcl::Font aVCLFont;
+        aVCLFont.SetFontHeight( std::min(::tools::Long(20),aOutputSize.Height()) );
+        aVCLFont.SetColor( COL_RED );
+
+        rTargetSurface.SetTextAlign(ALIGN_TOP);
+        rTargetSurface.SetTextColor( COL_RED );
+        rTargetSurface.SetFont( aVCLFont );
+
+        OUString text( ::rtl::math::doubleToUString( getPriority(),
+                                                            rtl_math_StringFormat_F,
+                                                            2,'.',nullptr,' ') );
+
+        rTargetSurface.DrawText( aOutPos+Point(2,2), text );
+        SAL_INFO( "canvas.vcl",
+                  "sprite " << this << " has prio " << getPriority());
+    }
+
+    ::basegfx::B2DPolyPolygon SpriteHelper::polyPolygonFromXPolyPolygon2D( uno::Reference< rendering::XPolyPolygon2D >& xPoly ) const
+    {
+        return ::basegfx::unotools::b2DPolyPolygonFromXPolyPolygon2D( xPoly );
+    }
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/spritehelper.hxx b/canvas/source/vcl/spritehelper.hxx
new file mode 100644
index 000000000..41d9883f6
--- /dev/null
+++ b/canvas/source/vcl/spritehelper.hxx
@@ -0,0 +1,108 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <vcl/bitmapex.hxx>
+
+#include <base/canvascustomspritehelper.hxx>
+#include <base/spritesurface.hxx>
+#include <vclwrapper.hxx>
+
+#include "backbuffer.hxx"
+
+
+namespace vclcanvas
+{
+    /* Definition of SpriteHelper class */
+
+    /** Helper class for canvas sprites.
+
+        This class implements all sprite-related functionality, like
+        that available on the XSprite interface.
+     */
+    class SpriteHelper : public ::canvas::CanvasCustomSpriteHelper
+    {
+    public:
+        SpriteHelper();
+
+        // make CanvasCustomSpriteHelper::init visible for name lookup
+        using ::canvas::CanvasCustomSpriteHelper::init;
+
+        /** Late-init the sprite helper
+
+            @param rSpriteSize
+            Size of the sprite
+
+            @param rSpriteCanvas
+            Sprite canvas this sprite is part of. Object stores
+            ref-counted reference to it, thus, don't forget to pass on
+            disposing()!
+
+            @param rBackBuffer
+            Buffer of the sprite content (non-alpha part)
+
+            @param rBackBufferMask
+            Buffer of the sprite content (alpha part)
+         */
+        void init( const css::geometry::RealSize2D&              rSpriteSize,
+                   const ::canvas::SpriteSurface::Reference&     rOwningSpriteCanvas,
+                   const BackBufferSharedPtr&                    rBackBuffer,
+                   const BackBufferSharedPtr&                    rBackBufferMask,
+                   bool                                          bShowSpriteBounds );
+
+        void disposing();
+
+        /** Repaint sprite content to associated sprite canvas
+
+            @param rPos
+            Output position (sprite's own position is disregarded)
+
+            @param io_bSurfacesDirty
+            When true, the referenced sprite surfaces (backBuffer and
+            backBufferMask) have been modified since last call.
+
+            @param bBufferedUpdate
+            When true, the redraw does <em>not</em> happen directly on
+            the front buffer, but within a VDev. Used to speed up
+            drawing.
+         */
+        void redraw( OutputDevice&              rOutDev,
+                     const ::basegfx::B2DPoint& rPos,
+                     bool&                      bSurfacesDirty,
+                     bool                       bBufferedUpdate ) const;
+
+    private:
+        virtual ::basegfx::B2DPolyPolygon polyPolygonFromXPolyPolygon2D(
+            css::uno::Reference< css::rendering::XPolyPolygon2D >& xPoly ) const override;
+
+        // for the redraw
+        BackBufferSharedPtr                                 mpBackBuffer;
+        BackBufferSharedPtr                                 mpBackBufferMask;
+
+        /// Cached bitmap for the current sprite content
+        mutable ::canvas::vcltools::VCLObject<BitmapEx>     maContent;
+
+        /// When true, line sprite corners in red
+        bool                                                mbShowSpriteBounds;
+
+    };
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/textlayout.cxx b/canvas/source/vcl/textlayout.cxx
new file mode 100644
index 000000000..63a3453ff
--- /dev/null
+++ b/canvas/source/vcl/textlayout.cxx
@@ -0,0 +1,428 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#include <sal/config.h>
+
+#include <tools/diagnose_ex.h>
+#include <basegfx/matrix/b2dhommatrix.hxx>
+#include <basegfx/numeric/ftools.hxx>
+#include <basegfx/utils/canvastools.hxx>
+#include <com/sun/star/rendering/CompositeOperation.hpp>
+#include <com/sun/star/rendering/RenderState.hpp>
+#include <com/sun/star/rendering/TextDirection.hpp>
+#include <com/sun/star/rendering/ViewState.hpp>
+#include <comphelper/sequence.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <utility>
+#include <vcl/metric.hxx>
+#include <vcl/virdev.hxx>
+
+#include <canvas/canvastools.hxx>
+
+#include "textlayout.hxx"
+
+#include <memory>
+
+using namespace ::com::sun::star;
+
+namespace vclcanvas
+{
+    namespace
+    {
+        void setupLayoutMode( OutputDevice& rOutDev,
+                              sal_Int8      nTextDirection )
+        {
+            // TODO(P3): avoid if already correctly set
+            vcl::text::ComplexTextLayoutFlags nLayoutMode = vcl::text::ComplexTextLayoutFlags::Default;
+            switch( nTextDirection )
+            {
+                case rendering::TextDirection::WEAK_LEFT_TO_RIGHT:
+                    break;
+                case rendering::TextDirection::STRONG_LEFT_TO_RIGHT:
+                    nLayoutMode = vcl::text::ComplexTextLayoutFlags::BiDiStrong;
+                    break;
+                case rendering::TextDirection::WEAK_RIGHT_TO_LEFT:
+                    nLayoutMode = vcl::text::ComplexTextLayoutFlags::BiDiRtl;
+                    break;
+                case rendering::TextDirection::STRONG_RIGHT_TO_LEFT:
+                    nLayoutMode = vcl::text::ComplexTextLayoutFlags::BiDiRtl | vcl::text::ComplexTextLayoutFlags::BiDiStrong;
+                    break;
+                default:
+                    break;
+            }
+
+            // set calculated layout mode. Origin is always the left edge,
+            // as required at the API spec
+            rOutDev.SetLayoutMode( nLayoutMode | vcl::text::ComplexTextLayoutFlags::TextOriginLeft );
+        }
+    }
+
+    TextLayout::TextLayout( rendering::StringContext                   aText,
+                            sal_Int8                                   nDirection,
+                            CanvasFont::Reference                      rFont,
+                            uno::Reference<rendering::XGraphicDevice>  xDevice,
+                            OutDevProviderSharedPtr                    xOutDev ) :
+        TextLayout_Base( m_aMutex ),
+        maText(std::move( aText )),
+        mpFont(std::move( rFont )),
+        mxDevice(std::move( xDevice )),
+        mpOutDevProvider(std::move( xOutDev )),
+        mnTextDirection( nDirection )
+    {}
+
+    void SAL_CALL TextLayout::disposing()
+    {
+        SolarMutexGuard aGuard;
+
+        mpOutDevProvider.reset();
+        mxDevice.clear();
+        mpFont.clear();
+    }
+
+    // XTextLayout
+    uno::Sequence< uno::Reference< rendering::XPolyPolygon2D > > SAL_CALL TextLayout::queryTextShapes(  )
+    {
+        SolarMutexGuard aGuard;
+
+        OutputDevice& rOutDev = mpOutDevProvider->getOutDev();
+        ScopedVclPtrInstance< VirtualDevice > pVDev( rOutDev );
+        pVDev->SetFont( mpFont->getVCLFont() );
+
+        setupLayoutMode( *pVDev, mnTextDirection );
+
+        const rendering::ViewState aViewState(
+            geometry::AffineMatrix2D(1,0,0, 0,1,0),
+            nullptr);
+
+        rendering::RenderState aRenderState (
+            geometry::AffineMatrix2D(1,0,0,0,1,0),
+            nullptr,
+            uno::Sequence<double>(4),
+            rendering::CompositeOperation::SOURCE);
+
+        std::vector<sal_Int32> aOffsets(maLogicalAdvancements.getLength());
+        setupTextOffsets(aOffsets.data(), maLogicalAdvancements, aViewState, aRenderState);
+
+        std::vector< uno::Reference< rendering::XPolyPolygon2D> > aOutlineSequence;
+        ::basegfx::B2DPolyPolygonVector aOutlines;
+        if (pVDev->GetTextOutlines(
+            aOutlines,
+            maText.Text,
+            maText.StartPosition,
+            maText.StartPosition,
+            maText.Length,
+            0,
+            aOffsets))
+        {
+            aOutlineSequence.reserve(aOutlines.size());
+            sal_Int32 nIndex (0);
+            for (auto const& outline : aOutlines)
+            {
+                aOutlineSequence[nIndex++] = ::basegfx::unotools::xPolyPolygonFromB2DPolyPolygon(
+                    mxDevice,
+                    outline);
+            }
+        }
+
+        return comphelper::containerToSequence(aOutlineSequence);
+    }
+
+    uno::Sequence< geometry::RealRectangle2D > SAL_CALL TextLayout::queryInkMeasures(  )
+    {
+        SolarMutexGuard aGuard;
+
+
+        OutputDevice& rOutDev = mpOutDevProvider->getOutDev();
+        ScopedVclPtrInstance< VirtualDevice > pVDev( rOutDev );
+        pVDev->SetFont( mpFont->getVCLFont() );
+
+        setupLayoutMode( *pVDev, mnTextDirection );
+
+        const rendering::ViewState aViewState(
+            geometry::AffineMatrix2D(1,0,0, 0,1,0),
+            nullptr);
+
+        rendering::RenderState aRenderState (
+            geometry::AffineMatrix2D(1,0,0,0,1,0),
+            nullptr,
+            uno::Sequence<double>(4),
+            rendering::CompositeOperation::SOURCE);
+
+        std::unique_ptr< sal_Int32 []> aOffsets(new sal_Int32[maLogicalAdvancements.getLength()]);
+        setupTextOffsets(aOffsets.get(), maLogicalAdvancements, aViewState, aRenderState);
+
+        std::vector< ::tools::Rectangle > aMetricVector;
+        uno::Sequence<geometry::RealRectangle2D> aBoundingBoxes;
+        if (pVDev->GetGlyphBoundRects(
+            Point(0,0),
+            maText.Text,
+            ::canvas::tools::numeric_cast<sal_uInt16>(maText.StartPosition),
+            ::canvas::tools::numeric_cast<sal_uInt16>(maText.Length),
+            aMetricVector))
+        {
+            aBoundingBoxes.realloc(aMetricVector.size());
+            auto pBoundingBoxes = aBoundingBoxes.getArray();
+            sal_Int32 nIndex (0);
+            for (auto const& metric : aMetricVector)
+            {
+                pBoundingBoxes[nIndex++] = geometry::RealRectangle2D(
+                    metric.Left(),
+                    metric.Top(),
+                    metric.Right(),
+                    metric.Bottom());
+            }
+        }
+        return aBoundingBoxes;
+    }
+
+    uno::Sequence< geometry::RealRectangle2D > SAL_CALL TextLayout::queryMeasures(  )
+    {
+        // TODO(F1)
+        return uno::Sequence< geometry::RealRectangle2D >();
+    }
+
+    uno::Sequence< double > SAL_CALL TextLayout::queryLogicalAdvancements(  )
+    {
+        SolarMutexGuard aGuard;
+
+        return maLogicalAdvancements;
+    }
+
+    void SAL_CALL TextLayout::applyLogicalAdvancements( const uno::Sequence< double >& aAdvancements )
+    {
+        SolarMutexGuard aGuard;
+
+        ENSURE_ARG_OR_THROW( aAdvancements.getLength() == maText.Length,
+                         "TextLayout::applyLogicalAdvancements(): mismatching number of advancements" );
+
+        maLogicalAdvancements = aAdvancements;
+    }
+
+    geometry::RealRectangle2D SAL_CALL TextLayout::queryTextBounds(  )
+    {
+        SolarMutexGuard aGuard;
+
+        if( !mpOutDevProvider )
+            return geometry::RealRectangle2D();
+
+        OutputDevice& rOutDev = mpOutDevProvider->getOutDev();
+
+        ScopedVclPtrInstance< VirtualDevice > pVDev( rOutDev );
+        pVDev->SetFont( mpFont->getVCLFont() );
+
+        // need metrics for Y offset, the XCanvas always renders
+        // relative to baseline
+        const ::FontMetric& aMetric( pVDev->GetFontMetric() );
+
+        setupLayoutMode( *pVDev, mnTextDirection );
+
+        const sal_Int32 nAboveBaseline( -aMetric.GetAscent() );
+        const sal_Int32 nBelowBaseline( aMetric.GetDescent() );
+
+        if( maLogicalAdvancements.hasElements() )
+        {
+            return geometry::RealRectangle2D( 0, nAboveBaseline,
+                                              maLogicalAdvancements[ maLogicalAdvancements.getLength()-1 ],
+                                              nBelowBaseline );
+        }
+        else
+        {
+            return geometry::RealRectangle2D( 0, nAboveBaseline,
+                                              pVDev->GetTextWidth(
+                                                  maText.Text,
+                                                  ::canvas::tools::numeric_cast<sal_uInt16>(maText.StartPosition),
+                                                  ::canvas::tools::numeric_cast<sal_uInt16>(maText.Length) ),
+                                              nBelowBaseline );
+        }
+    }
+
+    double SAL_CALL TextLayout::justify( double )
+    {
+        // TODO(F1)
+        return 0.0;
+    }
+
+    double SAL_CALL TextLayout::combinedJustify( const uno::Sequence< uno::Reference< rendering::XTextLayout > >&,
+                                                 double )
+    {
+        // TODO(F1)
+        return 0.0;
+    }
+
+    rendering::TextHit SAL_CALL TextLayout::getTextHit( const geometry::RealPoint2D& )
+    {
+        // TODO(F1)
+        return rendering::TextHit();
+    }
+
+    rendering::Caret SAL_CALL TextLayout::getCaret( sal_Int32, sal_Bool )
+    {
+        // TODO(F1)
+        return rendering::Caret();
+    }
+
+    sal_Int32 SAL_CALL TextLayout::getNextInsertionIndex( sal_Int32, sal_Int32, sal_Bool )
+    {
+        // TODO(F1)
+        return 0;
+    }
+
+    uno::Reference< rendering::XPolyPolygon2D > SAL_CALL TextLayout::queryVisualHighlighting( sal_Int32, sal_Int32 )
+    {
+        // TODO(F1)
+        return uno::Reference< rendering::XPolyPolygon2D >();
+    }
+
+    uno::Reference< rendering::XPolyPolygon2D > SAL_CALL TextLayout::queryLogicalHighlighting( sal_Int32, sal_Int32 )
+    {
+        // TODO(F1)
+        return uno::Reference< rendering::XPolyPolygon2D >();
+    }
+
+    double SAL_CALL TextLayout::getBaselineOffset(  )
+    {
+        // TODO(F1)
+        return 0.0;
+    }
+
+    sal_Int8 SAL_CALL TextLayout::getMainTextDirection(  )
+    {
+        SolarMutexGuard aGuard;
+
+        return mnTextDirection;
+    }
+
+    uno::Reference< rendering::XCanvasFont > SAL_CALL TextLayout::getFont(  )
+    {
+        SolarMutexGuard aGuard;
+
+        return mpFont;
+    }
+
+    rendering::StringContext SAL_CALL TextLayout::getText(  )
+    {
+        SolarMutexGuard aGuard;
+
+        return maText;
+    }
+
+    void TextLayout::draw( OutputDevice&                 rOutDev,
+                           const Point&                  rOutpos,
+                           const rendering::ViewState&   viewState,
+                           const rendering::RenderState& renderState ) const
+    {
+        SolarMutexGuard aGuard;
+
+        setupLayoutMode( rOutDev, mnTextDirection );
+
+        if( maLogicalAdvancements.hasElements() )
+        {
+            // TODO(P2): cache that
+            std::vector<sal_Int32> aOffsets(maLogicalAdvancements.getLength());
+            setupTextOffsets( aOffsets.data(), maLogicalAdvancements, viewState, renderState );
+
+            // TODO(F3): ensure correct length and termination for DX
+            // array (last entry _must_ contain the overall width)
+
+            rOutDev.DrawTextArray( rOutpos,
+                                   maText.Text,
+                                   aOffsets,
+                                   ::canvas::tools::numeric_cast<sal_uInt16>(maText.StartPosition),
+                                   ::canvas::tools::numeric_cast<sal_uInt16>(maText.Length) );
+        }
+        else
+        {
+            rOutDev.DrawText( rOutpos,
+                              maText.Text,
+                              ::canvas::tools::numeric_cast<sal_uInt16>(maText.StartPosition),
+                              ::canvas::tools::numeric_cast<sal_uInt16>(maText.Length) );
+        }
+    }
+
+    namespace
+    {
+        class OffsetTransformer
+        {
+        public:
+            explicit OffsetTransformer( ::basegfx::B2DHomMatrix aMat ) :
+                maMatrix(std::move( aMat ))
+            {
+            }
+
+            sal_Int32 operator()( const double& rOffset )
+            {
+                // This is an optimization of the normal rMat*[x,0]
+                // transformation of the advancement vector (in x
+                // direction), followed by a length calculation of the
+                // resulting vector: advancement' =
+                // ||rMat*[x,0]||. Since advancements are vectors, we
+                // can ignore translational components, thus if [x,0],
+                // it follows that rMat*[x,0]=[x',0] holds. Thus, we
+                // just have to calc the transformation of the x
+                // component.
+
+                // TODO(F2): Handle non-horizontal advancements!
+                return ::basegfx::fround( hypot(maMatrix.get(0,0)*rOffset,
+                                                maMatrix.get(1,0)*rOffset) );
+            }
+
+        private:
+            ::basegfx::B2DHomMatrix maMatrix;
+        };
+    }
+
+    void TextLayout::setupTextOffsets( sal_Int32*                       outputOffsets,
+                                       const uno::Sequence< double >&   inputOffsets,
+                                       const rendering::ViewState&      viewState,
+                                       const rendering::RenderState&    renderState     ) const
+    {
+        ENSURE_OR_THROW( outputOffsets!=nullptr,
+                          "TextLayout::setupTextOffsets offsets NULL" );
+
+        ::basegfx::B2DHomMatrix aMatrix;
+
+        ::canvas::tools::mergeViewAndRenderTransform(aMatrix,
+                                                     viewState,
+                                                     renderState);
+
+        // fill integer offsets
+        std::transform( inputOffsets.begin(),
+                          inputOffsets.end(),
+                          outputOffsets,
+                          OffsetTransformer( aMatrix ) );
+    }
+
+    OUString SAL_CALL TextLayout::getImplementationName()
+    {
+        return "VCLCanvas::TextLayout";
+    }
+
+    sal_Bool SAL_CALL TextLayout::supportsService( const OUString& ServiceName )
+    {
+        return cppu::supportsService( this, ServiceName );
+    }
+
+    uno::Sequence< OUString > SAL_CALL TextLayout::getSupportedServiceNames()
+    {
+        return { "com.sun.star.rendering.TextLayout" };
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/textlayout.hxx b/canvas/source/vcl/textlayout.hxx
new file mode 100644
index 000000000..5a403c280
--- /dev/null
+++ b/canvas/source/vcl/textlayout.hxx
@@ -0,0 +1,103 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <cppuhelper/compbase.hxx>
+#include <cppuhelper/basemutex.hxx>
+
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/rendering/StringContext.hpp>
+#include <com/sun/star/rendering/XTextLayout.hpp>
+
+#include "canvasfont.hxx"
+#include "impltools.hxx"
+
+
+/* Definition of TextLayout class */
+
+namespace vclcanvas
+{
+    typedef ::cppu::WeakComponentImplHelper< css::rendering::XTextLayout,
+                                             css::lang::XServiceInfo > TextLayout_Base;
+
+    class TextLayout : public ::cppu::BaseMutex,
+                       public TextLayout_Base
+    {
+    public:
+        /// make noncopyable
+        TextLayout(const TextLayout&) = delete;
+        const TextLayout& operator=(const TextLayout&) = delete;
+
+        TextLayout( css::rendering::StringContext                 aText,
+                    sal_Int8                                      nDirection,
+                    CanvasFont::Reference                         rFont,
+                    css::uno::Reference<
+                          css::rendering::XGraphicDevice>         xDevice,
+                    OutDevProviderSharedPtr                       xOutDev );
+
+        /// Dispose all internal references
+        virtual void SAL_CALL disposing() override;
+
+        // XTextLayout
+        virtual css::uno::Sequence< css::uno::Reference< css::rendering::XPolyPolygon2D > > SAL_CALL queryTextShapes(  ) override;
+        virtual css::uno::Sequence< css::geometry::RealRectangle2D > SAL_CALL queryInkMeasures(  ) override;
+        virtual css::uno::Sequence< css::geometry::RealRectangle2D > SAL_CALL queryMeasures(  ) override;
+        virtual css::uno::Sequence< double > SAL_CALL queryLogicalAdvancements(  ) override;
+        virtual void SAL_CALL applyLogicalAdvancements( const css::uno::Sequence< double >& aAdvancements ) override;
+        virtual css::geometry::RealRectangle2D SAL_CALL queryTextBounds(  ) override;
+        virtual double SAL_CALL justify( double nSize ) override;
+        virtual double SAL_CALL combinedJustify( const css::uno::Sequence< css::uno::Reference< css::rendering::XTextLayout > >& aNextLayouts, double nSize ) override;
+        virtual css::rendering::TextHit SAL_CALL getTextHit( const css::geometry::RealPoint2D& aHitPoint ) override;
+        virtual css::rendering::Caret SAL_CALL getCaret( sal_Int32 nInsertionIndex, sal_Bool bExcludeLigatures ) override;
+        virtual sal_Int32 SAL_CALL getNextInsertionIndex( sal_Int32 nStartIndex, sal_Int32 nCaretAdvancement, sal_Bool bExcludeLigatures ) override;
+        virtual css::uno::Reference< css::rendering::XPolyPolygon2D > SAL_CALL queryVisualHighlighting( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) override;
+        virtual css::uno::Reference< css::rendering::XPolyPolygon2D > SAL_CALL queryLogicalHighlighting( sal_Int32 nStartIndex, sal_Int32 nEndIndex ) override;
+        virtual double SAL_CALL getBaselineOffset(  ) override;
+        virtual sal_Int8 SAL_CALL getMainTextDirection(  ) override;
+        virtual css::uno::Reference< css::rendering::XCanvasFont > SAL_CALL getFont(  ) override;
+        virtual css::rendering::StringContext SAL_CALL getText(  ) override;
+
+        // XServiceInfo
+        virtual OUString SAL_CALL getImplementationName() override;
+        virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
+        virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
+
+        void draw( OutputDevice&                                   rOutDev,
+                   const Point&                                    rOutpos,
+                   const css::rendering::ViewState&                viewState,
+                   const css::rendering::RenderState&              renderState ) const;
+
+    private:
+        void setupTextOffsets( sal_Int32* outputOffsets,
+                               const css::uno::Sequence< double >& inputOffsets,
+                               const css::rendering::ViewState&    viewState,
+                               const css::rendering::RenderState&  renderState     ) const;
+
+        css::rendering::StringContext                    maText;
+        css::uno::Sequence< double >                     maLogicalAdvancements;
+        CanvasFont::Reference                            mpFont;
+        css::uno::Reference< css::rendering::XGraphicDevice> mxDevice;
+        OutDevProviderSharedPtr                          mpOutDevProvider;
+        sal_Int8                                         mnTextDirection;
+    };
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/vclcanvas.component b/canvas/source/vcl/vclcanvas.component
new file mode 100644
index 000000000..c2e0ffc09
--- /dev/null
+++ b/canvas/source/vcl/vclcanvas.component
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ -->
+
+<component loader="com.sun.star.loader.SharedLibrary" environment="@CPPU_ENV@"
+    xmlns="http://openoffice.org/2010/uno-components">
+  <implementation name="com.sun.star.comp.rendering.Canvas.VCL"
+    constructor="com_sun_star_comp_rendering_Canvas_VCL_get_implementation">
+    <service name="com.sun.star.rendering.Canvas.VCL"/>
+  </implementation>
+  <implementation name="com.sun.star.comp.rendering.SpriteCanvas.VCL"
+    constructor="com_sun_star_comp_rendering_SpriteCanvas_VCL_get_implementation">
+    <service name="com.sun.star.rendering.SpriteCanvas.VCL"/>
+  </implementation>
+</component>
diff --git a/canvas/source/vcl/windowoutdevholder.cxx b/canvas/source/vcl/windowoutdevholder.cxx
new file mode 100644
index 000000000..4776ee554
--- /dev/null
+++ b/canvas/source/vcl/windowoutdevholder.cxx
@@ -0,0 +1,49 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <com/sun/star/lang/NoSupportException.hpp>
+#include <toolkit/helper/vclunohelper.hxx>
+
+#include "windowoutdevholder.hxx"
+
+using namespace ::com::sun::star;
+
+namespace vclcanvas
+{
+    namespace
+    {
+        vcl::Window& windowFromXWin( const uno::Reference<awt::XWindow>& xWin )
+        {
+            VclPtr<vcl::Window> pWindow = VCLUnoHelper::GetWindow(xWin);
+            if( !pWindow )
+                throw lang::NoSupportException(
+                    "Parent window not VCL window, or canvas out-of-process!",
+                    nullptr);
+            return *pWindow;
+        }
+    }
+
+    WindowOutDevHolder::WindowOutDevHolder( const uno::Reference<awt::XWindow>& xWin ) :
+        mrOutputWindow( windowFromXWin(xWin) )
+    {}
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/canvas/source/vcl/windowoutdevholder.hxx b/canvas/source/vcl/windowoutdevholder.hxx
new file mode 100644
index 000000000..87138a8a9
--- /dev/null
+++ b/canvas/source/vcl/windowoutdevholder.hxx
@@ -0,0 +1,56 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/awt/XWindow.hpp>
+#include <vcl/window.hxx>
+
+#include "outdevprovider.hxx"
+
+namespace vclcanvas
+{
+    class WindowOutDevHolder : public OutDevProvider
+    {
+    public:
+        WindowOutDevHolder(const WindowOutDevHolder&) = delete;
+        const WindowOutDevHolder operator=(const WindowOutDevHolder&) = delete;
+
+        explicit WindowOutDevHolder( const css::uno::Reference< css::awt::XWindow>& xWin );
+
+    private:
+        virtual OutputDevice&       getOutDev() override { return *mrOutputWindow.GetOutDev(); }
+        virtual const OutputDevice& getOutDev() const override { return *mrOutputWindow.GetOutDev(); }
+
+        // TODO(Q2): Lifetime issue. Though WindowGraphicDeviceBase
+        // now listens to the window component, I still consider
+        // holding a naked reference unsafe here (especially as we
+        // pass it around via getOutDev). This _only_ works reliably,
+        // if disposing the SpriteCanvas correctly disposes all
+        // entities which hold this pointer.
+        // So: as soon as the protocol inside
+        // vcl/source/window/window.cxx is broken, that disposes the
+        // canvas during window deletion, we're riding a dead horse
+        // here
+        vcl::Window& mrOutputWindow;
+    };
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */