Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream

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

1 files changed, 1407 insertions, 0 deletions

diff --git a/vcl/source/helper/canvasbitmap.cxx b/vcl/source/helper/canvasbitmap.cxx
new file mode 100644
index 000000000..b720cdf3b
--- /dev/null
+++ b/vcl/source/helper/canvasbitmap.cxx
@@ -0,0 +1,1407 @@
+/* -*- 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/IndexOutOfBoundsException.hpp>
+#include <com/sun/star/util/Endianness.hpp>
+#include <com/sun/star/rendering/ColorComponentTag.hpp>
+#include <com/sun/star/rendering/ColorSpaceType.hpp>
+#include <com/sun/star/rendering/RenderingIntent.hpp>
+
+#include <rtl/instance.hxx>
+
+#include <tools/diagnose_ex.h>
+#include <canvasbitmap.hxx>
+#include <vcl/canvastools.hxx>
+#include <vcl/bitmapaccess.hxx>
+#include <vcl/svapp.hxx>
+
+#include <algorithm>
+
+using namespace vcl::unotools;
+using namespace ::com::sun::star;
+
+namespace
+{
+    // TODO(Q3): move to o3tl bithacks or somesuch. A similar method is in canvas/canvastools.hxx
+
+    // Good ole HAKMEM tradition. Calc number of 1 bits in 32bit word,
+    // unrolled loop. See e.g. Hackers Delight, p. 66
+    sal_Int32 bitcount( sal_uInt32 val )
+    {
+        val = val - ((val >> 1) & 0x55555555);
+        val = (val & 0x33333333) + ((val >> 2) & 0x33333333);
+        val = (val + (val >> 4)) & 0x0F0F0F0F;
+        val = val + (val >> 8);
+        val = val + (val >> 16);
+        return sal_Int32(val & 0x0000003F);
+    }
+}
+
+void VclCanvasBitmap::setComponentInfo( sal_uInt32 redShift, sal_uInt32 greenShift, sal_uInt32 blueShift )
+{
+    // sort channels in increasing order of appearance in the pixel
+    // (starting with the least significant bits)
+    sal_Int8 redPos(0);
+    sal_Int8 greenPos(1);
+    sal_Int8 bluePos(2);
+
+    if( redShift > greenShift )
+    {
+        std::swap(redPos,greenPos);
+        if( redShift > blueShift )
+        {
+            std::swap(redPos,bluePos);
+            if( greenShift > blueShift )
+                std::swap(greenPos,bluePos);
+        }
+    }
+    else
+    {
+        if( greenShift > blueShift )
+        {
+            std::swap(greenPos,bluePos);
+            if( redShift > blueShift )
+                std::swap(redPos,bluePos);
+        }
+    }
+
+    m_aComponentTags.realloc(3);
+    sal_Int8* pTags = m_aComponentTags.getArray();
+    pTags[redPos]   = rendering::ColorComponentTag::RGB_RED;
+    pTags[greenPos] = rendering::ColorComponentTag::RGB_GREEN;
+    pTags[bluePos]  = rendering::ColorComponentTag::RGB_BLUE;
+
+    m_aComponentBitCounts.realloc(3);
+    sal_Int32* pCounts = m_aComponentBitCounts.getArray();
+    pCounts[redPos]   = bitcount(redShift);
+    pCounts[greenPos] = bitcount(greenShift);
+    pCounts[bluePos]  = bitcount(blueShift);
+}
+
+VclCanvasBitmap::VclCanvasBitmap( const BitmapEx& rBitmap ) :
+    m_aBmpEx( rBitmap ),
+    m_aBitmap( rBitmap.GetBitmap() ),
+    m_aAlpha(),
+    m_pBmpAcc( m_aBitmap ),
+    m_aComponentTags(),
+    m_aComponentBitCounts(),
+    m_aLayout(),
+    m_nBitsPerInputPixel(0),
+    m_nBitsPerOutputPixel(0),
+    m_nRedIndex(-1),
+    m_nGreenIndex(-1),
+    m_nBlueIndex(-1),
+    m_nAlphaIndex(-1),
+    m_nIndexIndex(-1),
+    m_nEndianness(0),
+    m_bPalette(false)
+{
+    if( m_aBmpEx.IsTransparent() )
+    {
+        m_aAlpha = m_aBmpEx.IsAlpha() ? m_aBmpEx.GetAlpha().GetBitmap() : m_aBmpEx.GetMask();
+        m_pAlphaAcc = Bitmap::ScopedReadAccess(m_aAlpha);
+    }
+
+    m_aLayout.ScanLines      = 0;
+    m_aLayout.ScanLineBytes  = 0;
+    m_aLayout.ScanLineStride = 0;
+    m_aLayout.PlaneStride    = 0;
+    m_aLayout.ColorSpace.clear();
+    m_aLayout.Palette.clear();
+    m_aLayout.IsMsbFirst     = false;
+
+    if( m_pBmpAcc )
+    {
+        m_aLayout.ScanLines      = m_pBmpAcc->Height();
+        m_aLayout.ScanLineBytes  = (m_pBmpAcc->GetBitCount()*m_pBmpAcc->Width() + 7) / 8;
+        m_aLayout.ScanLineStride = m_pBmpAcc->GetScanlineSize();
+        m_aLayout.PlaneStride    = 0;
+
+        switch( m_pBmpAcc->GetScanlineFormat() )
+        {
+            case ScanlineFormat::N1BitMsbPal:
+                m_bPalette           = true;
+                m_nBitsPerInputPixel = 1;
+                m_nEndianness        = util::Endianness::LITTLE; // doesn't matter
+                m_aLayout.IsMsbFirst = true;
+                break;
+
+            case ScanlineFormat::N1BitLsbPal:
+                m_bPalette           = true;
+                m_nBitsPerInputPixel = 1;
+                m_nEndianness        = util::Endianness::LITTLE; // doesn't matter
+                m_aLayout.IsMsbFirst = false;
+                break;
+
+            case ScanlineFormat::N4BitMsnPal:
+                m_bPalette           = true;
+                m_nBitsPerInputPixel = 4;
+                m_nEndianness        = util::Endianness::LITTLE; // doesn't matter
+                m_aLayout.IsMsbFirst = true;
+                break;
+
+            case ScanlineFormat::N4BitLsnPal:
+                m_bPalette           = true;
+                m_nBitsPerInputPixel = 4;
+                m_nEndianness        = util::Endianness::LITTLE; // doesn't matter
+                m_aLayout.IsMsbFirst = false;
+                break;
+
+            case ScanlineFormat::N8BitPal:
+                m_bPalette           = true;
+                m_nBitsPerInputPixel = 8;
+                m_nEndianness        = util::Endianness::LITTLE; // doesn't matter
+                m_aLayout.IsMsbFirst = false; // doesn't matter
+                break;
+
+            case ScanlineFormat::N8BitTcMask:
+                m_bPalette           = false;
+                m_nBitsPerInputPixel = 8;
+                m_nEndianness        = util::Endianness::LITTLE; // doesn't matter
+                m_aLayout.IsMsbFirst = false; // doesn't matter
+                setComponentInfo( m_pBmpAcc->GetColorMask().GetRedMask(),
+                                  m_pBmpAcc->GetColorMask().GetGreenMask(),
+                                  m_pBmpAcc->GetColorMask().GetBlueMask() );
+                break;
+
+            case ScanlineFormat::N24BitTcBgr:
+                m_bPalette           = false;
+                m_nBitsPerInputPixel = 24;
+                m_nEndianness        = util::Endianness::LITTLE;
+                m_aLayout.IsMsbFirst = false; // doesn't matter
+                setComponentInfo( static_cast<sal_uInt32>(0xff0000UL),
+                                  static_cast<sal_uInt32>(0x00ff00UL),
+                                  static_cast<sal_uInt32>(0x0000ffUL) );
+                break;
+
+            case ScanlineFormat::N24BitTcRgb:
+                m_bPalette           = false;
+                m_nBitsPerInputPixel = 24;
+                m_nEndianness        = util::Endianness::LITTLE;
+                m_aLayout.IsMsbFirst = false; // doesn't matter
+                setComponentInfo( static_cast<sal_uInt32>(0x0000ffUL),
+                                  static_cast<sal_uInt32>(0x00ff00UL),
+                                  static_cast<sal_uInt32>(0xff0000UL) );
+                break;
+
+            case ScanlineFormat::N32BitTcAbgr:
+            {
+                m_bPalette           = false;
+                m_nBitsPerInputPixel = 32;
+                m_nEndianness        = util::Endianness::LITTLE;
+                m_aLayout.IsMsbFirst = false; // doesn't matter
+
+                m_aComponentTags.realloc(4);
+                sal_Int8* pTags = m_aComponentTags.getArray();
+                pTags[0]        = rendering::ColorComponentTag::ALPHA;
+                pTags[1]        = rendering::ColorComponentTag::RGB_BLUE;
+                pTags[2]        = rendering::ColorComponentTag::RGB_GREEN;
+                pTags[3]        = rendering::ColorComponentTag::RGB_RED;
+
+                m_aComponentBitCounts.realloc(4);
+                sal_Int32* pCounts = m_aComponentBitCounts.getArray();
+                pCounts[0]         = 8;
+                pCounts[1]         = 8;
+                pCounts[2]         = 8;
+                pCounts[3]         = 8;
+
+                m_nRedIndex   = 3;
+                m_nGreenIndex = 2;
+                m_nBlueIndex  = 1;
+                m_nAlphaIndex = 0;
+            }
+            break;
+
+            case ScanlineFormat::N32BitTcArgb:
+            {
+                m_bPalette           = false;
+                m_nBitsPerInputPixel = 32;
+                m_nEndianness        = util::Endianness::LITTLE;
+                m_aLayout.IsMsbFirst = false; // doesn't matter
+
+                m_aComponentTags.realloc(4);
+                sal_Int8* pTags = m_aComponentTags.getArray();
+                pTags[0]        = rendering::ColorComponentTag::ALPHA;
+                pTags[1]        = rendering::ColorComponentTag::RGB_RED;
+                pTags[2]        = rendering::ColorComponentTag::RGB_GREEN;
+                pTags[3]        = rendering::ColorComponentTag::RGB_BLUE;
+
+                m_aComponentBitCounts.realloc(4);
+                sal_Int32* pCounts = m_aComponentBitCounts.getArray();
+                pCounts[0]         = 8;
+                pCounts[1]         = 8;
+                pCounts[2]         = 8;
+                pCounts[3]         = 8;
+
+                m_nRedIndex   = 1;
+                m_nGreenIndex = 2;
+                m_nBlueIndex  = 3;
+                m_nAlphaIndex = 0;
+            }
+            break;
+
+            case ScanlineFormat::N32BitTcBgra:
+            {
+                m_bPalette           = false;
+                m_nBitsPerInputPixel = 32;
+                m_nEndianness        = util::Endianness::LITTLE;
+                m_aLayout.IsMsbFirst = false; // doesn't matter
+
+                m_aComponentTags.realloc(4);
+                sal_Int8* pTags = m_aComponentTags.getArray();
+                pTags[0]        = rendering::ColorComponentTag::RGB_BLUE;
+                pTags[1]        = rendering::ColorComponentTag::RGB_GREEN;
+                pTags[2]        = rendering::ColorComponentTag::RGB_RED;
+                pTags[3]        = rendering::ColorComponentTag::ALPHA;
+
+                m_aComponentBitCounts.realloc(4);
+                sal_Int32* pCounts = m_aComponentBitCounts.getArray();
+                pCounts[0]         = 8;
+                pCounts[1]         = 8;
+                pCounts[2]         = 8;
+                pCounts[3]         = 8;
+
+                m_nRedIndex   = 2;
+                m_nGreenIndex = 1;
+                m_nBlueIndex  = 0;
+                m_nAlphaIndex = 3;
+            }
+            break;
+
+            case ScanlineFormat::N32BitTcRgba:
+            {
+                m_bPalette           = false;
+                m_nBitsPerInputPixel = 32;
+                m_nEndianness        = util::Endianness::LITTLE;
+                m_aLayout.IsMsbFirst = false; // doesn't matter
+
+                m_aComponentTags.realloc(4);
+                sal_Int8* pTags = m_aComponentTags.getArray();
+                pTags[0]        = rendering::ColorComponentTag::RGB_RED;
+                pTags[1]        = rendering::ColorComponentTag::RGB_GREEN;
+                pTags[2]        = rendering::ColorComponentTag::RGB_BLUE;
+                pTags[3]        = rendering::ColorComponentTag::ALPHA;
+
+                m_aComponentBitCounts.realloc(4);
+                sal_Int32* pCounts = m_aComponentBitCounts.getArray();
+                pCounts[0]         = 8;
+                pCounts[1]         = 8;
+                pCounts[2]         = 8;
+                pCounts[3]         = 8;
+
+                m_nRedIndex   = 0;
+                m_nGreenIndex = 1;
+                m_nBlueIndex  = 2;
+                m_nAlphaIndex = 3;
+            }
+            break;
+
+            case ScanlineFormat::N32BitTcMask:
+                m_bPalette           = false;
+                m_nBitsPerInputPixel = 32;
+                m_nEndianness        = util::Endianness::LITTLE;
+                m_aLayout.IsMsbFirst = false; // doesn't matter
+                setComponentInfo( m_pBmpAcc->GetColorMask().GetRedMask(),
+                                  m_pBmpAcc->GetColorMask().GetGreenMask(),
+                                  m_pBmpAcc->GetColorMask().GetBlueMask() );
+                break;
+
+            default:
+                OSL_FAIL( "unsupported bitmap format" );
+                break;
+        }
+
+        if( m_bPalette )
+        {
+            m_aComponentTags.realloc(1);
+            m_aComponentTags[0] = rendering::ColorComponentTag::INDEX;
+
+            m_aComponentBitCounts.realloc(1);
+            m_aComponentBitCounts[0] = m_nBitsPerInputPixel;
+
+            m_nIndexIndex = 0;
+        }
+
+        m_nBitsPerOutputPixel = m_nBitsPerInputPixel;
+        if( m_aBmpEx.IsTransparent() )
+        {
+            // TODO(P1): need to interleave alpha with bitmap data -
+            // won't fuss with less-than-8 bit for now
+            m_nBitsPerOutputPixel = std::max(sal_Int32(8),m_nBitsPerInputPixel);
+
+            // check whether alpha goes in front or behind the
+            // bitcount sequence. If pixel format is little endian,
+            // put it behind all the other channels. If it's big
+            // endian, put it in front (because later, the actual data
+            // always gets written after the pixel data)
+
+            // TODO(Q1): slight catch - in the case of the
+            // BMP_FORMAT_32BIT_XX_ARGB formats, duplicate alpha
+            // channels might happen!
+            m_aComponentTags.realloc(m_aComponentTags.getLength()+1);
+            m_aComponentTags[m_aComponentTags.getLength()-1] = rendering::ColorComponentTag::ALPHA;
+
+            m_aComponentBitCounts.realloc(m_aComponentBitCounts.getLength()+1);
+            m_aComponentBitCounts[m_aComponentBitCounts.getLength()-1] = m_aBmpEx.IsAlpha() ? 8 : 1;
+
+            if( m_nEndianness == util::Endianness::BIG )
+            {
+                // put alpha in front of all the color channels
+                sal_Int8*  pTags  =m_aComponentTags.getArray();
+                sal_Int32* pCounts=m_aComponentBitCounts.getArray();
+                std::rotate(pTags,
+                            pTags+m_aComponentTags.getLength()-1,
+                            pTags+m_aComponentTags.getLength());
+                std::rotate(pCounts,
+                            pCounts+m_aComponentBitCounts.getLength()-1,
+                            pCounts+m_aComponentBitCounts.getLength());
+                ++m_nRedIndex;
+                ++m_nGreenIndex;
+                ++m_nBlueIndex;
+                ++m_nIndexIndex;
+                m_nAlphaIndex=0;
+            }
+
+            // always add a full byte to the pixel size, otherwise
+            // pixel packing hell breaks loose.
+            m_nBitsPerOutputPixel += 8;
+
+            // adapt scanline parameters
+            const Size aSize = m_aBitmap.GetSizePixel();
+            m_aLayout.ScanLineBytes  =
+            m_aLayout.ScanLineStride = (aSize.Width()*m_nBitsPerOutputPixel + 7)/8;
+        }
+    }
+}
+
+VclCanvasBitmap::~VclCanvasBitmap()
+{
+}
+
+// XBitmap
+geometry::IntegerSize2D SAL_CALL VclCanvasBitmap::getSize()
+{
+    SolarMutexGuard aGuard;
+    return integerSize2DFromSize( m_aBitmap.GetSizePixel() );
+}
+
+sal_Bool SAL_CALL VclCanvasBitmap::hasAlpha()
+{
+    SolarMutexGuard aGuard;
+    return m_aBmpEx.IsTransparent();
+}
+
+uno::Reference< rendering::XBitmap > SAL_CALL VclCanvasBitmap::getScaledBitmap( const geometry::RealSize2D& newSize,
+                                                                                sal_Bool beFast )
+{
+    SolarMutexGuard aGuard;
+
+    BitmapEx aNewBmp( m_aBitmap );
+    aNewBmp.Scale( sizeFromRealSize2D( newSize ), beFast ? BmpScaleFlag::Default : BmpScaleFlag::BestQuality );
+    return uno::Reference<rendering::XBitmap>( new VclCanvasBitmap( aNewBmp ) );
+}
+
+// XIntegerReadOnlyBitmap
+uno::Sequence< sal_Int8 > SAL_CALL VclCanvasBitmap::getData( rendering::IntegerBitmapLayout&     bitmapLayout,
+                                                             const geometry::IntegerRectangle2D& rect )
+{
+    SolarMutexGuard aGuard;
+
+    bitmapLayout = getMemoryLayout();
+
+    const ::tools::Rectangle aRequestedArea( vcl::unotools::rectangleFromIntegerRectangle2D(rect) );
+    if( aRequestedArea.IsEmpty() )
+        return uno::Sequence< sal_Int8 >();
+
+    // Invalid/empty bitmap: no data available
+    if( !m_pBmpAcc )
+        throw lang::IndexOutOfBoundsException();
+    if( m_aBmpEx.IsTransparent() && !m_pAlphaAcc )
+        throw lang::IndexOutOfBoundsException();
+
+    if( aRequestedArea.Left() < 0 || aRequestedArea.Top() < 0 ||
+        aRequestedArea.Right() > m_pBmpAcc->Width() ||
+        aRequestedArea.Bottom() > m_pBmpAcc->Height() )
+    {
+        throw lang::IndexOutOfBoundsException();
+    }
+
+    uno::Sequence< sal_Int8 > aRet;
+    tools::Rectangle aRequestedBytes( aRequestedArea );
+
+    // adapt to byte boundaries
+    aRequestedBytes.SetLeft( aRequestedArea.Left()*m_nBitsPerOutputPixel/8 );
+    aRequestedBytes.SetRight( (aRequestedArea.Right()*m_nBitsPerOutputPixel + 7)/8 );
+
+    // copy stuff to output sequence
+    aRet.realloc(aRequestedBytes.getWidth()*aRequestedBytes.getHeight());
+    sal_Int8* pOutBuf = aRet.getArray();
+
+    bitmapLayout.ScanLines     = aRequestedBytes.getHeight();
+    bitmapLayout.ScanLineBytes =
+    bitmapLayout.ScanLineStride= aRequestedBytes.getWidth();
+
+    sal_Int32 nScanlineStride=bitmapLayout.ScanLineStride;
+    if( !(m_pBmpAcc->GetScanlineFormat() & ScanlineFormat::TopDown) )
+    {
+        pOutBuf += bitmapLayout.ScanLineStride*(aRequestedBytes.getHeight()-1);
+        nScanlineStride *= -1;
+    }
+
+    if( !m_aBmpEx.IsTransparent() )
+    {
+        OSL_ENSURE(m_pBmpAcc,"Invalid bmp read access");
+
+        // can return bitmap data as-is
+        for( long y=aRequestedBytes.Top(); y<aRequestedBytes.Bottom(); ++y )
+        {
+            Scanline pScan = m_pBmpAcc->GetScanline(y);
+            memcpy(pOutBuf, pScan+aRequestedBytes.Left(), aRequestedBytes.getWidth());
+            pOutBuf += nScanlineStride;
+        }
+    }
+    else
+    {
+        OSL_ENSURE(m_pBmpAcc,"Invalid bmp read access");
+        OSL_ENSURE(m_pAlphaAcc,"Invalid alpha read access");
+
+        // interleave alpha with bitmap data - note, bitcount is
+        // always integer multiple of 8
+        OSL_ENSURE((m_nBitsPerOutputPixel & 0x07) == 0,
+                   "Transparent bitmap bitcount not integer multiple of 8" );
+
+        for( long y=aRequestedArea.Top(); y<aRequestedArea.Bottom(); ++y )
+        {
+            sal_Int8* pOutScan = pOutBuf;
+
+            if( m_nBitsPerInputPixel < 8 )
+            {
+                // input less than a byte - copy via GetPixel()
+                for( long x=aRequestedArea.Left(); x<aRequestedArea.Right(); ++x )
+                {
+                    *pOutScan++ = m_pBmpAcc->GetPixelIndex(y,x);
+                    *pOutScan++ = m_pAlphaAcc->GetPixelIndex(y,x);
+                }
+            }
+            else
+            {
+                const long nNonAlphaBytes( m_nBitsPerInputPixel/8 );
+                const long nScanlineOffsetLeft(aRequestedArea.Left()*nNonAlphaBytes);
+                Scanline  pScan = m_pBmpAcc->GetScanline(y) + nScanlineOffsetLeft;
+                Scanline pScanlineAlpha = m_pAlphaAcc->GetScanline( y );
+
+                // input integer multiple of byte - copy directly
+                for( long x=aRequestedArea.Left(); x<aRequestedArea.Right(); ++x )
+                {
+                    for( long i=0; i<nNonAlphaBytes; ++i )
+                        *pOutScan++ = *pScan++;
+                    *pOutScan++ = m_pAlphaAcc->GetIndexFromData( pScanlineAlpha, x );
+                }
+            }
+
+            pOutBuf += nScanlineStride;
+        }
+    }
+
+    return aRet;
+}
+
+uno::Sequence< sal_Int8 > SAL_CALL VclCanvasBitmap::getPixel( rendering::IntegerBitmapLayout&   bitmapLayout,
+                                                              const geometry::IntegerPoint2D&   pos )
+{
+    SolarMutexGuard aGuard;
+
+    bitmapLayout = getMemoryLayout();
+
+    // Invalid/empty bitmap: no data available
+    if( !m_pBmpAcc )
+        throw lang::IndexOutOfBoundsException();
+    if( m_aBmpEx.IsTransparent() && !m_pAlphaAcc )
+        throw lang::IndexOutOfBoundsException();
+
+    if( pos.X < 0 || pos.Y < 0 ||
+        pos.X > m_pBmpAcc->Width() || pos.Y > m_pBmpAcc->Height() )
+    {
+        throw lang::IndexOutOfBoundsException();
+    }
+
+    uno::Sequence< sal_Int8 > aRet((m_nBitsPerOutputPixel + 7)/8);
+    sal_Int8* pOutBuf = aRet.getArray();
+
+    // copy stuff to output sequence
+    bitmapLayout.ScanLines     = 1;
+    bitmapLayout.ScanLineBytes =
+    bitmapLayout.ScanLineStride= aRet.getLength();
+
+    const long nScanlineLeftOffset( pos.X*m_nBitsPerInputPixel/8 );
+    if( !m_aBmpEx.IsTransparent() )
+    {
+        assert(m_pBmpAcc && "Invalid bmp read access");
+
+        // can return bitmap data as-is
+        Scanline pScan = m_pBmpAcc->GetScanline(pos.Y);
+        memcpy(pOutBuf, pScan+nScanlineLeftOffset, aRet.getLength() );
+    }
+    else
+    {
+        assert(m_pBmpAcc && "Invalid bmp read access");
+        assert(m_pAlphaAcc && "Invalid alpha read access");
+
+        // interleave alpha with bitmap data - note, bitcount is
+        // always integer multiple of 8
+        assert((m_nBitsPerOutputPixel & 0x07) == 0 &&
+                   "Transparent bitmap bitcount not integer multiple of 8" );
+
+        if( m_nBitsPerInputPixel < 8 )
+        {
+            // input less than a byte - copy via GetPixel()
+            *pOutBuf++ = m_pBmpAcc->GetPixelIndex(pos.Y,pos.X);
+            *pOutBuf   = m_pAlphaAcc->GetPixelIndex(pos.Y,pos.X);
+        }
+        else
+        {
+            const long nNonAlphaBytes( m_nBitsPerInputPixel/8 );
+            Scanline  pScan = m_pBmpAcc->GetScanline(pos.Y);
+
+            // input integer multiple of byte - copy directly
+            memcpy(pOutBuf, pScan+nScanlineLeftOffset, nNonAlphaBytes );
+            pOutBuf += nNonAlphaBytes;
+            *pOutBuf++ = m_pAlphaAcc->GetPixelIndex(pos.Y,pos.X);
+        }
+    }
+
+    return aRet;
+}
+
+uno::Reference< rendering::XBitmapPalette > VclCanvasBitmap::getPalette()
+{
+    SolarMutexGuard aGuard;
+
+    uno::Reference< XBitmapPalette > aRet;
+    if( m_bPalette )
+        aRet.set(this);
+
+    return aRet;
+}
+
+rendering::IntegerBitmapLayout SAL_CALL VclCanvasBitmap::getMemoryLayout()
+{
+    SolarMutexGuard aGuard;
+
+    rendering::IntegerBitmapLayout aLayout( m_aLayout );
+
+    // only set references to self on separate copy of
+    // IntegerBitmapLayout - if we'd set that on m_aLayout, we'd have
+    // a circular reference!
+    if( m_bPalette )
+        aLayout.Palette.set( this );
+
+    aLayout.ColorSpace.set( this );
+
+    return aLayout;
+}
+
+sal_Int32 SAL_CALL VclCanvasBitmap::getNumberOfEntries()
+{
+    SolarMutexGuard aGuard;
+
+    if( !m_pBmpAcc )
+        return 0;
+
+    return m_pBmpAcc->HasPalette() ? m_pBmpAcc->GetPaletteEntryCount() : 0 ;
+}
+
+sal_Bool SAL_CALL VclCanvasBitmap::getIndex( uno::Sequence< double >& o_entry, sal_Int32 nIndex )
+{
+    SolarMutexGuard aGuard;
+
+    const sal_uInt16 nCount( m_pBmpAcc ?
+                         (m_pBmpAcc->HasPalette() ? m_pBmpAcc->GetPaletteEntryCount() : 0 ) : 0 );
+    OSL_ENSURE(nIndex >= 0 && nIndex < nCount,"Palette index out of range");
+    if( nIndex < 0 || nIndex >= nCount )
+        throw lang::IndexOutOfBoundsException("Palette index out of range",
+                                              static_cast<rendering::XBitmapPalette*>(this));
+
+    const BitmapColor aCol = m_pBmpAcc->GetPaletteColor(sal::static_int_cast<sal_uInt16>(nIndex));
+    o_entry.realloc(3);
+    double* pColor=o_entry.getArray();
+    pColor[0] = aCol.GetRed();
+    pColor[1] = aCol.GetGreen();
+    pColor[2] = aCol.GetBlue();
+
+    return true; // no palette transparency here.
+}
+
+sal_Bool SAL_CALL VclCanvasBitmap::setIndex( const uno::Sequence< double >&, sal_Bool, sal_Int32 nIndex )
+{
+    SolarMutexGuard aGuard;
+
+    const sal_uInt16 nCount( m_pBmpAcc ?
+                         (m_pBmpAcc->HasPalette() ? m_pBmpAcc->GetPaletteEntryCount() : 0 ) : 0 );
+
+    OSL_ENSURE(nIndex >= 0 && nIndex < nCount,"Palette index out of range");
+    if( nIndex < 0 || nIndex >= nCount )
+        throw lang::IndexOutOfBoundsException("Palette index out of range",
+                                              static_cast<rendering::XBitmapPalette*>(this));
+
+    return false; // read-only implementation
+}
+
+namespace
+{
+    struct PaletteColorSpaceHolder: public rtl::StaticWithInit<uno::Reference<rendering::XColorSpace>,
+                                                               PaletteColorSpaceHolder>
+    {
+        uno::Reference<rendering::XColorSpace> operator()()
+        {
+            return vcl::unotools::createStandardColorSpace();
+        }
+    };
+}
+
+uno::Reference< rendering::XColorSpace > SAL_CALL VclCanvasBitmap::getColorSpace(  )
+{
+    // this is the method from XBitmapPalette. Return palette color
+    // space here
+    return PaletteColorSpaceHolder::get();
+}
+
+sal_Int8 SAL_CALL VclCanvasBitmap::getType(  )
+{
+    return rendering::ColorSpaceType::RGB;
+}
+
+uno::Sequence< ::sal_Int8 > SAL_CALL VclCanvasBitmap::getComponentTags(  )
+{
+    SolarMutexGuard aGuard;
+    return m_aComponentTags;
+}
+
+sal_Int8 SAL_CALL VclCanvasBitmap::getRenderingIntent(  )
+{
+    return rendering::RenderingIntent::PERCEPTUAL;
+}
+
+uno::Sequence< ::beans::PropertyValue > SAL_CALL VclCanvasBitmap::getProperties(  )
+{
+    return uno::Sequence< ::beans::PropertyValue >();
+}
+
+uno::Sequence< double > SAL_CALL VclCanvasBitmap::convertColorSpace( const uno::Sequence< double >& deviceColor,
+                                                                     const uno::Reference< ::rendering::XColorSpace >& targetColorSpace )
+{
+    // TODO(P3): if we know anything about target
+    // colorspace, this can be greatly sped up
+    uno::Sequence<rendering::ARGBColor> aIntermediate(
+        convertToARGB(deviceColor));
+    return targetColorSpace->convertFromARGB(aIntermediate);
+}
+
+uno::Sequence<rendering::RGBColor> SAL_CALL VclCanvasBitmap::convertToRGB( const uno::Sequence< double >& deviceColor )
+{
+    SolarMutexGuard aGuard;
+
+    const std::size_t nLen( deviceColor.getLength() );
+    const sal_Int32 nComponentsPerPixel(m_aComponentTags.getLength());
+    ENSURE_ARG_OR_THROW2(nLen%nComponentsPerPixel==0,
+                         "number of channels no multiple of pixel element count",
+                         static_cast<rendering::XBitmapPalette*>(this), 01);
+
+    uno::Sequence< rendering::RGBColor > aRes(nLen/nComponentsPerPixel);
+    rendering::RGBColor* pOut( aRes.getArray() );
+
+    if( m_bPalette )
+    {
+        OSL_ENSURE(m_nIndexIndex != -1,
+                   "Invalid color channel indices");
+        ENSURE_OR_THROW(m_pBmpAcc,
+                        "Unable to get BitmapAccess");
+
+        for( std::size_t i=0; i<nLen; i+=nComponentsPerPixel )
+        {
+            const BitmapColor aCol = m_pBmpAcc->GetPaletteColor(
+                sal::static_int_cast<sal_uInt16>(deviceColor[i+m_nIndexIndex]));
+
+            // TODO(F3): Convert result to sRGB color space
+            *pOut++ = rendering::RGBColor(toDoubleColor(aCol.GetRed()),
+                                          toDoubleColor(aCol.GetGreen()),
+                                          toDoubleColor(aCol.GetBlue()));
+        }
+    }
+    else
+    {
+        OSL_ENSURE(m_nRedIndex != -1 && m_nGreenIndex != -1 && m_nBlueIndex != -1,
+                   "Invalid color channel indices");
+
+        for( std::size_t i=0; i<nLen; i+=nComponentsPerPixel )
+        {
+            // TODO(F3): Convert result to sRGB color space
+            *pOut++ = rendering::RGBColor(
+                deviceColor[i+m_nRedIndex],
+                deviceColor[i+m_nGreenIndex],
+                deviceColor[i+m_nBlueIndex]);
+        }
+    }
+
+    return aRes;
+}
+
+uno::Sequence<rendering::ARGBColor> SAL_CALL VclCanvasBitmap::convertToARGB( const uno::Sequence< double >& deviceColor )
+{
+    SolarMutexGuard aGuard;
+
+    const std::size_t nLen( deviceColor.getLength() );
+    const sal_Int32 nComponentsPerPixel(m_aComponentTags.getLength());
+    ENSURE_ARG_OR_THROW2(nLen%nComponentsPerPixel==0,
+                         "number of channels no multiple of pixel element count",
+                         static_cast<rendering::XBitmapPalette*>(this), 01);
+
+    uno::Sequence< rendering::ARGBColor > aRes(nLen/nComponentsPerPixel);
+    rendering::ARGBColor* pOut( aRes.getArray() );
+
+    if( m_bPalette )
+    {
+        OSL_ENSURE(m_nIndexIndex != -1,
+                   "Invalid color channel indices");
+        ENSURE_OR_THROW(m_pBmpAcc,
+                        "Unable to get BitmapAccess");
+
+        for( std::size_t i=0; i<nLen; i+=nComponentsPerPixel )
+        {
+            const BitmapColor aCol = m_pBmpAcc->GetPaletteColor(
+                sal::static_int_cast<sal_uInt16>(deviceColor[i+m_nIndexIndex]));
+
+            // TODO(F3): Convert result to sRGB color space
+            const double nAlpha( m_nAlphaIndex != -1 ? 1.0 - deviceColor[i+m_nAlphaIndex] : 1.0 );
+            *pOut++ = rendering::ARGBColor(nAlpha,
+                                           toDoubleColor(aCol.GetRed()),
+                                           toDoubleColor(aCol.GetGreen()),
+                                           toDoubleColor(aCol.GetBlue()));
+        }
+    }
+    else
+    {
+        OSL_ENSURE(m_nRedIndex != -1 && m_nGreenIndex != -1 && m_nBlueIndex != -1,
+                   "Invalid color channel indices");
+
+        for( std::size_t i=0; i<nLen; i+=nComponentsPerPixel )
+        {
+            // TODO(F3): Convert result to sRGB color space
+            const double nAlpha( m_nAlphaIndex != -1 ? 1.0 - deviceColor[i+m_nAlphaIndex] : 1.0 );
+            *pOut++ = rendering::ARGBColor(
+                nAlpha,
+                deviceColor[i+m_nRedIndex],
+                deviceColor[i+m_nGreenIndex],
+                deviceColor[i+m_nBlueIndex]);
+        }
+    }
+
+    return aRes;
+}
+
+uno::Sequence<rendering::ARGBColor> SAL_CALL VclCanvasBitmap::convertToPARGB( const uno::Sequence< double >& deviceColor )
+{
+    SolarMutexGuard aGuard;
+
+    const std::size_t nLen( deviceColor.getLength() );
+    const sal_Int32 nComponentsPerPixel(m_aComponentTags.getLength());
+    ENSURE_ARG_OR_THROW2(nLen%nComponentsPerPixel==0,
+                         "number of channels no multiple of pixel element count",
+                         static_cast<rendering::XBitmapPalette*>(this), 01);
+
+    uno::Sequence< rendering::ARGBColor > aRes(nLen/nComponentsPerPixel);
+    rendering::ARGBColor* pOut( aRes.getArray() );
+
+    if( m_bPalette )
+    {
+        OSL_ENSURE(m_nIndexIndex != -1,
+                   "Invalid color channel indices");
+        ENSURE_OR_THROW(m_pBmpAcc,
+                        "Unable to get BitmapAccess");
+
+        for( std::size_t i=0; i<nLen; i+=nComponentsPerPixel )
+        {
+            const BitmapColor aCol = m_pBmpAcc->GetPaletteColor(
+                sal::static_int_cast<sal_uInt16>(deviceColor[i+m_nIndexIndex]));
+
+            // TODO(F3): Convert result to sRGB color space
+            const double nAlpha( m_nAlphaIndex != -1 ? 1.0 - deviceColor[i+m_nAlphaIndex] : 1.0 );
+            *pOut++ = rendering::ARGBColor(nAlpha,
+                                           nAlpha*toDoubleColor(aCol.GetRed()),
+                                           nAlpha*toDoubleColor(aCol.GetGreen()),
+                                           nAlpha*toDoubleColor(aCol.GetBlue()));
+        }
+    }
+    else
+    {
+        OSL_ENSURE(m_nRedIndex != -1 && m_nGreenIndex != -1 && m_nBlueIndex != -1,
+                   "Invalid color channel indices");
+
+        for( std::size_t i=0; i<nLen; i+=nComponentsPerPixel )
+        {
+            // TODO(F3): Convert result to sRGB color space
+            const double nAlpha( m_nAlphaIndex != -1 ? 1.0 - deviceColor[i+m_nAlphaIndex] : 1.0 );
+            *pOut++ = rendering::ARGBColor(
+                nAlpha,
+                nAlpha*deviceColor[i+m_nRedIndex],
+                nAlpha*deviceColor[i+m_nGreenIndex],
+                nAlpha*deviceColor[i+m_nBlueIndex]);
+        }
+    }
+
+    return aRes;
+}
+
+uno::Sequence< double > SAL_CALL VclCanvasBitmap::convertFromRGB( const uno::Sequence<rendering::RGBColor>& rgbColor )
+{
+    SolarMutexGuard aGuard;
+
+    const std::size_t nLen( rgbColor.getLength() );
+    const sal_Int32 nComponentsPerPixel(m_aComponentTags.getLength());
+
+    uno::Sequence< double > aRes(nLen*nComponentsPerPixel);
+    double* pColors=aRes.getArray();
+
+    if( m_bPalette )
+    {
+        for( const auto& rIn : rgbColor )
+        {
+            pColors[m_nIndexIndex] = m_pBmpAcc->GetBestPaletteIndex(
+                    BitmapColor(toByteColor(rIn.Red),
+                                toByteColor(rIn.Green),
+                                toByteColor(rIn.Blue)));
+            if( m_nAlphaIndex != -1 )
+                pColors[m_nAlphaIndex] = 1.0;
+
+            pColors += nComponentsPerPixel;
+        }
+    }
+    else
+    {
+        for( const auto& rIn : rgbColor )
+        {
+            pColors[m_nRedIndex]   = rIn.Red;
+            pColors[m_nGreenIndex] = rIn.Green;
+            pColors[m_nBlueIndex]  = rIn.Blue;
+            if( m_nAlphaIndex != -1 )
+                pColors[m_nAlphaIndex] = 1.0;
+
+            pColors += nComponentsPerPixel;
+        }
+    }
+    return aRes;
+}
+
+uno::Sequence< double > SAL_CALL VclCanvasBitmap::convertFromARGB( const uno::Sequence<rendering::ARGBColor>& rgbColor )
+{
+    SolarMutexGuard aGuard;
+
+    const std::size_t nLen( rgbColor.getLength() );
+    const sal_Int32 nComponentsPerPixel(m_aComponentTags.getLength());
+
+    uno::Sequence< double > aRes(nLen*nComponentsPerPixel);
+    double* pColors=aRes.getArray();
+
+    if( m_bPalette )
+    {
+        for( const auto& rIn : rgbColor )
+        {
+            pColors[m_nIndexIndex] = m_pBmpAcc->GetBestPaletteIndex(
+                    BitmapColor(toByteColor(rIn.Red),
+                                toByteColor(rIn.Green),
+                                toByteColor(rIn.Blue)));
+            if( m_nAlphaIndex != -1 )
+                pColors[m_nAlphaIndex] = rIn.Alpha;
+
+            pColors += nComponentsPerPixel;
+        }
+    }
+    else
+    {
+        for( const auto& rIn : rgbColor )
+        {
+            pColors[m_nRedIndex]   = rIn.Red;
+            pColors[m_nGreenIndex] = rIn.Green;
+            pColors[m_nBlueIndex]  = rIn.Blue;
+            if( m_nAlphaIndex != -1 )
+                pColors[m_nAlphaIndex] = rIn.Alpha;
+
+            pColors += nComponentsPerPixel;
+        }
+    }
+    return aRes;
+}
+
+uno::Sequence< double > SAL_CALL VclCanvasBitmap::convertFromPARGB( const uno::Sequence<rendering::ARGBColor>& rgbColor )
+{
+    SolarMutexGuard aGuard;
+
+    const std::size_t nLen( rgbColor.getLength() );
+    const sal_Int32 nComponentsPerPixel(m_aComponentTags.getLength());
+
+    uno::Sequence< double > aRes(nLen*nComponentsPerPixel);
+    double* pColors=aRes.getArray();
+
+    if( m_bPalette )
+    {
+        for( const auto& rIn : rgbColor )
+        {
+            const double nAlpha( rIn.Alpha );
+            pColors[m_nIndexIndex] = m_pBmpAcc->GetBestPaletteIndex(
+                    BitmapColor(toByteColor(rIn.Red / nAlpha),
+                                toByteColor(rIn.Green / nAlpha),
+                                toByteColor(rIn.Blue / nAlpha)));
+            if( m_nAlphaIndex != -1 )
+                pColors[m_nAlphaIndex] = nAlpha;
+
+            pColors += nComponentsPerPixel;
+        }
+    }
+    else
+    {
+        for( const auto& rIn : rgbColor )
+        {
+            const double nAlpha( rIn.Alpha );
+            pColors[m_nRedIndex]   = rIn.Red / nAlpha;
+            pColors[m_nGreenIndex] = rIn.Green / nAlpha;
+            pColors[m_nBlueIndex]  = rIn.Blue / nAlpha;
+            if( m_nAlphaIndex != -1 )
+                pColors[m_nAlphaIndex] = nAlpha;
+
+            pColors += nComponentsPerPixel;
+        }
+    }
+    return aRes;
+}
+
+sal_Int32 SAL_CALL VclCanvasBitmap::getBitsPerPixel(  )
+{
+    SolarMutexGuard aGuard;
+    return m_nBitsPerOutputPixel;
+}
+
+uno::Sequence< ::sal_Int32 > SAL_CALL VclCanvasBitmap::getComponentBitCounts(  )
+{
+    SolarMutexGuard aGuard;
+    return m_aComponentBitCounts;
+}
+
+sal_Int8 SAL_CALL VclCanvasBitmap::getEndianness(  )
+{
+    SolarMutexGuard aGuard;
+    return m_nEndianness;
+}
+
+uno::Sequence<double> SAL_CALL VclCanvasBitmap::convertFromIntegerColorSpace( const uno::Sequence< ::sal_Int8 >& deviceColor,
+                                                                              const uno::Reference< ::rendering::XColorSpace >& targetColorSpace )
+{
+    if( dynamic_cast<VclCanvasBitmap*>(targetColorSpace.get()) )
+    {
+        SolarMutexGuard aGuard;
+
+        const std::size_t nLen( deviceColor.getLength() );
+        const sal_Int32 nComponentsPerPixel(m_aComponentTags.getLength());
+        ENSURE_ARG_OR_THROW2(nLen%nComponentsPerPixel==0,
+                             "number of channels no multiple of pixel element count",
+                             static_cast<rendering::XBitmapPalette*>(this), 01);
+
+        uno::Sequence<double> aRes(nLen);
+        double* pOut( aRes.getArray() );
+
+        if( m_bPalette )
+        {
+            OSL_ENSURE(m_nIndexIndex != -1,
+                       "Invalid color channel indices");
+            ENSURE_OR_THROW(m_pBmpAcc,
+                            "Unable to get BitmapAccess");
+
+            for( std::size_t i=0; i<nLen; i+=nComponentsPerPixel )
+            {
+                const BitmapColor aCol = m_pBmpAcc->GetPaletteColor(
+                    sal::static_int_cast<sal_uInt16>(deviceColor[i+m_nIndexIndex]));
+
+                // TODO(F3): Convert result to sRGB color space
+                const double nAlpha( m_nAlphaIndex != -1 ? 1.0 - deviceColor[i+m_nAlphaIndex] : 1.0 );
+                *pOut++ = toDoubleColor(aCol.GetRed());
+                *pOut++ = toDoubleColor(aCol.GetGreen());
+                *pOut++ = toDoubleColor(aCol.GetBlue());
+                *pOut++ = nAlpha;
+            }
+        }
+        else
+        {
+            OSL_ENSURE(m_nRedIndex != -1 && m_nGreenIndex != -1 && m_nBlueIndex != -1,
+                       "Invalid color channel indices");
+
+            for( std::size_t i=0; i<nLen; i+=nComponentsPerPixel )
+            {
+                // TODO(F3): Convert result to sRGB color space
+                const double nAlpha( m_nAlphaIndex != -1 ? 1.0 - deviceColor[i+m_nAlphaIndex] : 1.0 );
+                *pOut++ = deviceColor[i+m_nRedIndex];
+                *pOut++ = deviceColor[i+m_nGreenIndex];
+                *pOut++ = deviceColor[i+m_nBlueIndex];
+                *pOut++ = nAlpha;
+            }
+        }
+
+        return aRes;
+    }
+    else
+    {
+        // TODO(P3): if we know anything about target
+        // colorspace, this can be greatly sped up
+        uno::Sequence<rendering::ARGBColor> aIntermediate(
+            convertIntegerToARGB(deviceColor));
+        return targetColorSpace->convertFromARGB(aIntermediate);
+    }
+}
+
+uno::Sequence< ::sal_Int8 > SAL_CALL VclCanvasBitmap::convertToIntegerColorSpace( const uno::Sequence< ::sal_Int8 >& deviceColor,
+                                                                                  const uno::Reference< ::rendering::XIntegerBitmapColorSpace >& targetColorSpace )
+{
+    if( dynamic_cast<VclCanvasBitmap*>(targetColorSpace.get()) )
+    {
+        // it's us, so simply pass-through the data
+        return deviceColor;
+    }
+    else
+    {
+        // TODO(P3): if we know anything about target
+        // colorspace, this can be greatly sped up
+        uno::Sequence<rendering::ARGBColor> aIntermediate(
+            convertIntegerToARGB(deviceColor));
+        return targetColorSpace->convertIntegerFromARGB(aIntermediate);
+    }
+}
+
+uno::Sequence<rendering::RGBColor> SAL_CALL VclCanvasBitmap::convertIntegerToRGB( const uno::Sequence< ::sal_Int8 >& deviceColor )
+{
+    SolarMutexGuard aGuard;
+
+    const sal_uInt8*     pIn( reinterpret_cast<const sal_uInt8*>(deviceColor.getConstArray()) );
+    const std::size_t nLen( deviceColor.getLength() );
+    const sal_Int32 nNumColors((nLen*8 + m_nBitsPerOutputPixel-1)/m_nBitsPerOutputPixel);
+
+    uno::Sequence< rendering::RGBColor > aRes(nNumColors);
+    rendering::RGBColor* pOut( aRes.getArray() );
+
+    ENSURE_OR_THROW(m_pBmpAcc,
+                    "Unable to get BitmapAccess");
+
+    if( m_aBmpEx.IsTransparent() )
+    {
+        const sal_Int32 nBytesPerPixel((m_nBitsPerOutputPixel+7)/8);
+        for( std::size_t i=0; i<nLen; i+=nBytesPerPixel )
+        {
+            // if palette, index is guaranteed to be 8 bit
+            const BitmapColor aCol =
+                m_bPalette ?
+                m_pBmpAcc->GetPaletteColor(*pIn) :
+                m_pBmpAcc->GetPixelFromData(pIn,0);
+
+            // TODO(F3): Convert result to sRGB color space
+            *pOut++ = rendering::RGBColor(toDoubleColor(aCol.GetRed()),
+                                          toDoubleColor(aCol.GetGreen()),
+                                          toDoubleColor(aCol.GetBlue()));
+            // skips alpha
+            pIn += nBytesPerPixel;
+        }
+    }
+    else
+    {
+        for( sal_Int32 i=0; i<nNumColors; ++i )
+        {
+            const BitmapColor aCol =
+                m_bPalette ?
+                m_pBmpAcc->GetPaletteColor( m_pBmpAcc->GetPixelFromData( pIn, i ).GetIndex()) :
+                m_pBmpAcc->GetPixelFromData(pIn, i);
+
+            // TODO(F3): Convert result to sRGB color space
+            *pOut++ = rendering::RGBColor(toDoubleColor(aCol.GetRed()),
+                                          toDoubleColor(aCol.GetGreen()),
+                                          toDoubleColor(aCol.GetBlue()));
+        }
+    }
+
+    return aRes;
+}
+
+uno::Sequence<rendering::ARGBColor> SAL_CALL VclCanvasBitmap::convertIntegerToARGB( const uno::Sequence< ::sal_Int8 >& deviceColor )
+{
+    SolarMutexGuard aGuard;
+
+    const sal_uInt8*     pIn( reinterpret_cast<const sal_uInt8*>(deviceColor.getConstArray()) );
+    const std::size_t nLen( deviceColor.getLength() );
+    const sal_Int32 nNumColors((nLen*8 + m_nBitsPerOutputPixel-1)/m_nBitsPerOutputPixel);
+
+    uno::Sequence< rendering::ARGBColor > aRes(nNumColors);
+    rendering::ARGBColor* pOut( aRes.getArray() );
+
+    ENSURE_OR_THROW(m_pBmpAcc,
+                    "Unable to get BitmapAccess");
+
+    if( m_aBmpEx.IsTransparent() )
+    {
+        const long      nNonAlphaBytes( (m_nBitsPerInputPixel+7)/8 );
+        const sal_Int32 nBytesPerPixel((m_nBitsPerOutputPixel+7)/8);
+        const sal_uInt8 nAlphaFactor( m_aBmpEx.IsAlpha() ? 1 : 255 );
+        for( std::size_t i=0; i<nLen; i+=nBytesPerPixel )
+        {
+            // if palette, index is guaranteed to be 8 bit
+            const BitmapColor aCol =
+                m_bPalette ?
+                m_pBmpAcc->GetPaletteColor(*pIn) :
+                m_pBmpAcc->GetPixelFromData(pIn,0);
+
+            // TODO(F3): Convert result to sRGB color space
+            *pOut++ = rendering::ARGBColor(1.0 - toDoubleColor(nAlphaFactor*pIn[nNonAlphaBytes]),
+                                           toDoubleColor(aCol.GetRed()),
+                                           toDoubleColor(aCol.GetGreen()),
+                                           toDoubleColor(aCol.GetBlue()));
+            pIn += nBytesPerPixel;
+        }
+    }
+    else
+    {
+        for( sal_Int32 i=0; i<nNumColors; ++i )
+        {
+            const BitmapColor aCol =
+                m_bPalette ?
+                m_pBmpAcc->GetPaletteColor( m_pBmpAcc->GetPixelFromData( pIn, i ).GetIndex() ) :
+                m_pBmpAcc->GetPixelFromData(pIn, i);
+
+            // TODO(F3): Convert result to sRGB color space
+            *pOut++ = rendering::ARGBColor(1.0,
+                                           toDoubleColor(aCol.GetRed()),
+                                           toDoubleColor(aCol.GetGreen()),
+                                           toDoubleColor(aCol.GetBlue()));
+        }
+    }
+
+    return aRes;
+}
+
+uno::Sequence<rendering::ARGBColor> SAL_CALL VclCanvasBitmap::convertIntegerToPARGB( const uno::Sequence< ::sal_Int8 >& deviceColor )
+{
+    SolarMutexGuard aGuard;
+
+    const sal_uInt8*     pIn( reinterpret_cast<const sal_uInt8*>(deviceColor.getConstArray()) );
+    const std::size_t nLen( deviceColor.getLength() );
+    const sal_Int32 nNumColors((nLen*8 + m_nBitsPerOutputPixel-1)/m_nBitsPerOutputPixel);
+
+    uno::Sequence< rendering::ARGBColor > aRes(nNumColors);
+    rendering::ARGBColor* pOut( aRes.getArray() );
+
+    ENSURE_OR_THROW(m_pBmpAcc,
+                    "Unable to get BitmapAccess");
+
+    if( m_aBmpEx.IsTransparent() )
+    {
+        const long      nNonAlphaBytes( (m_nBitsPerInputPixel+7)/8 );
+        const sal_Int32 nBytesPerPixel((m_nBitsPerOutputPixel+7)/8);
+        const sal_uInt8 nAlphaFactor( m_aBmpEx.IsAlpha() ? 1 : 255 );
+        for( std::size_t i=0; i<nLen; i+=nBytesPerPixel )
+        {
+            // if palette, index is guaranteed to be 8 bit
+            const BitmapColor aCol =
+                m_bPalette ?
+                m_pBmpAcc->GetPaletteColor(*pIn) :
+                m_pBmpAcc->GetPixelFromData(pIn,0);
+
+            // TODO(F3): Convert result to sRGB color space
+            const double nAlpha( 1.0 - toDoubleColor(nAlphaFactor*pIn[nNonAlphaBytes]) );
+            *pOut++ = rendering::ARGBColor(nAlpha,
+                                           nAlpha*toDoubleColor(aCol.GetRed()),
+                                           nAlpha*toDoubleColor(aCol.GetGreen()),
+                                           nAlpha*toDoubleColor(aCol.GetBlue()));
+            pIn += nBytesPerPixel;
+        }
+    }
+    else
+    {
+        for( sal_Int32 i=0; i<nNumColors; ++i )
+        {
+            const BitmapColor aCol =
+                m_bPalette ?
+                m_pBmpAcc->GetPaletteColor( m_pBmpAcc->GetPixelFromData( pIn, i ).GetIndex() ) :
+                m_pBmpAcc->GetPixelFromData(pIn, i);
+
+            // TODO(F3): Convert result to sRGB color space
+            *pOut++ = rendering::ARGBColor(1.0,
+                                           toDoubleColor(aCol.GetRed()),
+                                           toDoubleColor(aCol.GetGreen()),
+                                           toDoubleColor(aCol.GetBlue()));
+        }
+    }
+
+    return aRes;
+}
+
+uno::Sequence< ::sal_Int8 > SAL_CALL VclCanvasBitmap::convertIntegerFromRGB( const uno::Sequence<rendering::RGBColor>& rgbColor )
+{
+    SolarMutexGuard aGuard;
+
+    const std::size_t nLen( rgbColor.getLength() );
+    const sal_Int32 nNumBytes((nLen*m_nBitsPerOutputPixel+7)/8);
+
+    uno::Sequence< sal_Int8 > aRes(nNumBytes);
+    sal_uInt8* pColors=reinterpret_cast<sal_uInt8*>(aRes.getArray());
+
+    if( m_aBmpEx.IsTransparent() )
+    {
+        const long nNonAlphaBytes( (m_nBitsPerInputPixel+7)/8 );
+        for( std::size_t i=0; i<nLen; ++i )
+        {
+            const BitmapColor aCol(toByteColor(rgbColor[i].Red),
+                                   toByteColor(rgbColor[i].Green),
+                                   toByteColor(rgbColor[i].Blue));
+            const BitmapColor aCol2 =
+                m_bPalette ?
+                BitmapColor(
+                    sal::static_int_cast<sal_uInt8>(m_pBmpAcc->GetBestPaletteIndex( aCol ))) :
+                aCol;
+
+            m_pBmpAcc->SetPixelOnData(pColors,i,aCol2);
+            pColors   += nNonAlphaBytes;
+            *pColors++ = sal_uInt8(255);
+        }
+    }
+    else
+    {
+        for( std::size_t i=0; i<nLen; ++i )
+        {
+            const BitmapColor aCol(toByteColor(rgbColor[i].Red),
+                                   toByteColor(rgbColor[i].Green),
+                                   toByteColor(rgbColor[i].Blue));
+            const BitmapColor aCol2 =
+                m_bPalette ?
+                BitmapColor(
+                    sal::static_int_cast<sal_uInt8>(m_pBmpAcc->GetBestPaletteIndex( aCol ))) :
+                aCol;
+
+            m_pBmpAcc->SetPixelOnData(pColors,i,aCol2);
+        }
+    }
+
+    return aRes;
+}
+
+uno::Sequence< ::sal_Int8 > SAL_CALL VclCanvasBitmap::convertIntegerFromARGB( const uno::Sequence<rendering::ARGBColor>& rgbColor )
+{
+    SolarMutexGuard aGuard;
+
+    const std::size_t nLen( rgbColor.getLength() );
+    const sal_Int32 nNumBytes((nLen*m_nBitsPerOutputPixel+7)/8);
+
+    uno::Sequence< sal_Int8 > aRes(nNumBytes);
+    sal_uInt8* pColors=reinterpret_cast<sal_uInt8*>(aRes.getArray());
+
+    if( m_aBmpEx.IsTransparent() )
+    {
+        const long nNonAlphaBytes( (m_nBitsPerInputPixel+7)/8 );
+        for( std::size_t i=0; i<nLen; ++i )
+        {
+            const BitmapColor aCol(toByteColor(rgbColor[i].Red),
+                                   toByteColor(rgbColor[i].Green),
+                                   toByteColor(rgbColor[i].Blue));
+            const BitmapColor aCol2 =
+                m_bPalette ?
+                BitmapColor(
+                    sal::static_int_cast<sal_uInt8>(m_pBmpAcc->GetBestPaletteIndex( aCol ))) :
+                aCol;
+
+            m_pBmpAcc->SetPixelOnData(pColors,i,aCol2);
+            pColors   += nNonAlphaBytes;
+            *pColors++ = 255 - toByteColor(rgbColor[i].Alpha);
+        }
+    }
+    else
+    {
+        for( std::size_t i=0; i<nLen; ++i )
+        {
+            const BitmapColor aCol(toByteColor(rgbColor[i].Red),
+                                   toByteColor(rgbColor[i].Green),
+                                   toByteColor(rgbColor[i].Blue));
+            const BitmapColor aCol2 =
+                m_bPalette ?
+                BitmapColor(
+                    sal::static_int_cast<sal_uInt8>(m_pBmpAcc->GetBestPaletteIndex( aCol ))) :
+                aCol;
+
+            m_pBmpAcc->SetPixelOnData(pColors,i,aCol2);
+        }
+    }
+
+    return aRes;
+}
+
+uno::Sequence< ::sal_Int8 > SAL_CALL VclCanvasBitmap::convertIntegerFromPARGB( const uno::Sequence<rendering::ARGBColor>& rgbColor )
+{
+    SolarMutexGuard aGuard;
+
+    const std::size_t nLen( rgbColor.getLength() );
+    const sal_Int32 nNumBytes((nLen*m_nBitsPerOutputPixel+7)/8);
+
+    uno::Sequence< sal_Int8 > aRes(nNumBytes);
+    sal_uInt8* pColors=reinterpret_cast<sal_uInt8*>(aRes.getArray());
+
+    if( m_aBmpEx.IsTransparent() )
+    {
+        const long nNonAlphaBytes( (m_nBitsPerInputPixel+7)/8 );
+        for( std::size_t i=0; i<nLen; ++i )
+        {
+            const double nAlpha( rgbColor[i].Alpha );
+            const BitmapColor aCol(toByteColor(rgbColor[i].Red / nAlpha),
+                                   toByteColor(rgbColor[i].Green / nAlpha),
+                                   toByteColor(rgbColor[i].Blue / nAlpha));
+            const BitmapColor aCol2 =
+                m_bPalette ?
+                BitmapColor(
+                    sal::static_int_cast<sal_uInt8>(m_pBmpAcc->GetBestPaletteIndex( aCol ))) :
+                aCol;
+
+            m_pBmpAcc->SetPixelOnData(pColors,i,aCol2);
+            pColors   += nNonAlphaBytes;
+            *pColors++ = 255 - toByteColor(nAlpha);
+        }
+    }
+    else
+    {
+        for( std::size_t i=0; i<nLen; ++i )
+        {
+            const BitmapColor aCol(toByteColor(rgbColor[i].Red),
+                                   toByteColor(rgbColor[i].Green),
+                                   toByteColor(rgbColor[i].Blue));
+            const BitmapColor aCol2 =
+                m_bPalette ?
+                BitmapColor(
+                    sal::static_int_cast<sal_uInt8>(m_pBmpAcc->GetBestPaletteIndex( aCol ))) :
+                aCol;
+
+            m_pBmpAcc->SetPixelOnData(pColors,i,aCol2);
+        }
+    }
+
+    return aRes;
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */