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, 1058 insertions, 0 deletions

diff --git a/vcl/win/gdi/salgdi.cxx b/vcl/win/gdi/salgdi.cxx
new file mode 100644
index 000000000..4b47b10b8
--- /dev/null
+++ b/vcl/win/gdi/salgdi.cxx
@@ -0,0 +1,1058 @@
+/* -*- 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 <string.h>
+#include <svsys.h>
+#include <rtl/strbuf.hxx>
+#include <tools/poly.hxx>
+#include <basegfx/polygon/b2dpolygon.hxx>
+#include <basegfx/polygon/b2dpolygontools.hxx>
+#include <basegfx/polygon/b2dpolypolygontools.hxx>
+#include <win/wincomp.hxx>
+#include <win/saldata.hxx>
+#include <win/salgdi.h>
+#include <win/salframe.h>
+#include <win/salvd.h>
+#include <win/winlayout.hxx>
+#include <basegfx/matrix/b2dhommatrixtools.hxx>
+
+#include <salgdiimpl.hxx>
+#include "gdiimpl.hxx"
+#include <opengl/win/gdiimpl.hxx>
+
+#include <vcl/opengl/OpenGLHelper.hxx>
+
+#include <config_features.h>
+#include <vcl/skia/SkiaHelper.hxx>
+#if HAVE_FEATURE_SKIA
+#include <skia/win/gdiimpl.hxx>
+#endif
+
+
+#define DITHER_PAL_DELTA                51
+#define DITHER_PAL_STEPS                6
+#define DITHER_PAL_COUNT                (DITHER_PAL_STEPS*DITHER_PAL_STEPS*DITHER_PAL_STEPS)
+#define DITHER_MAX_SYSCOLOR             16
+#define DITHER_EXTRA_COLORS             1
+
+namespace
+{
+
+struct SysColorEntry
+{
+    DWORD           nRGB;
+    SysColorEntry*  pNext;
+};
+
+SysColorEntry* pFirstSysColor = nullptr;
+SysColorEntry* pActSysColor = nullptr;
+
+void DeleteSysColorList()
+{
+    SysColorEntry* pEntry = pFirstSysColor;
+    pActSysColor = pFirstSysColor = nullptr;
+
+    while( pEntry )
+    {
+        SysColorEntry* pTmp = pEntry->pNext;
+        delete pEntry;
+        pEntry = pTmp;
+    }
+}
+
+} // namespace
+
+// Blue7
+static PALETTEENTRY aImplExtraColor1 =
+{
+    0, 184, 255, 0
+};
+
+static PALETTEENTRY aImplSalSysPalEntryAry[ DITHER_MAX_SYSCOLOR ] =
+{
+{    0,    0,    0, 0 },
+{    0,    0, 0x80, 0 },
+{    0, 0x80,    0, 0 },
+{    0, 0x80, 0x80, 0 },
+{ 0x80,    0,    0, 0 },
+{ 0x80,    0, 0x80, 0 },
+{ 0x80, 0x80,    0, 0 },
+{ 0x80, 0x80, 0x80, 0 },
+{ 0xC0, 0xC0, 0xC0, 0 },
+{    0,    0, 0xFF, 0 },
+{    0, 0xFF,    0, 0 },
+{    0, 0xFF, 0xFF, 0 },
+{ 0xFF,    0,    0, 0 },
+{ 0xFF,    0, 0xFF, 0 },
+{ 0xFF, 0xFF,    0, 0 },
+{ 0xFF, 0xFF, 0xFF, 0 }
+};
+
+// we must create pens with 1-pixel width; otherwise the S3-graphics card
+// map has many paint problems when drawing polygons/polyLines and a
+// complex is set
+#define GSL_PEN_WIDTH                   1
+
+void ImplInitSalGDI()
+{
+    SalData* pSalData = GetSalData();
+
+    pSalData->mbResourcesAlreadyFreed = false;
+
+    // init stock brushes
+    pSalData->maStockPenColorAry[0]     = PALETTERGB( 0, 0, 0 );
+    pSalData->maStockPenColorAry[1]     = PALETTERGB( 0xFF, 0xFF, 0xFF );
+    pSalData->maStockPenColorAry[2]     = PALETTERGB( 0xC0, 0xC0, 0xC0 );
+    pSalData->maStockPenColorAry[3]     = PALETTERGB( 0x80, 0x80, 0x80 );
+    pSalData->mhStockPenAry[0]          = CreatePen( PS_SOLID, GSL_PEN_WIDTH, pSalData->maStockPenColorAry[0] );
+    pSalData->mhStockPenAry[1]          = CreatePen( PS_SOLID, GSL_PEN_WIDTH, pSalData->maStockPenColorAry[1] );
+    pSalData->mhStockPenAry[2]          = CreatePen( PS_SOLID, GSL_PEN_WIDTH, pSalData->maStockPenColorAry[2] );
+    pSalData->mhStockPenAry[3]          = CreatePen( PS_SOLID, GSL_PEN_WIDTH, pSalData->maStockPenColorAry[3] );
+    pSalData->mnStockPenCount = 4;
+
+    pSalData->maStockBrushColorAry[0]   = PALETTERGB( 0, 0, 0 );
+    pSalData->maStockBrushColorAry[1]   = PALETTERGB( 0xFF, 0xFF, 0xFF );
+    pSalData->maStockBrushColorAry[2]   = PALETTERGB( 0xC0, 0xC0, 0xC0 );
+    pSalData->maStockBrushColorAry[3]   = PALETTERGB( 0x80, 0x80, 0x80 );
+    pSalData->mhStockBrushAry[0]        = CreateSolidBrush( pSalData->maStockBrushColorAry[0] );
+    pSalData->mhStockBrushAry[1]        = CreateSolidBrush( pSalData->maStockBrushColorAry[1] );
+    pSalData->mhStockBrushAry[2]        = CreateSolidBrush( pSalData->maStockBrushColorAry[2] );
+    pSalData->mhStockBrushAry[3]        = CreateSolidBrush( pSalData->maStockBrushColorAry[3] );
+    pSalData->mnStockBrushCount = 4;
+
+    // initialize cache of device contexts
+    pSalData->mpHDCCache = new HDCCache[ CACHESIZE_HDC ];
+    memset( pSalData->mpHDCCache, 0, CACHESIZE_HDC * sizeof( HDCCache ) );
+
+    // initialize temporary font lists
+    pSalData->mpSharedTempFontItem = nullptr;
+    pSalData->mpOtherTempFontItem = nullptr;
+
+    // support palettes for 256 color displays
+    HDC hDC = GetDC( nullptr );
+    int nBitsPixel = GetDeviceCaps( hDC, BITSPIXEL );
+    int nPlanes = GetDeviceCaps( hDC, PLANES );
+    int nRasterCaps = GetDeviceCaps( hDC, RASTERCAPS );
+    int nBitCount = nBitsPixel * nPlanes;
+
+    if ( (nBitCount > 8) && (nBitCount < 24) )
+    {
+        // test if we have to dither
+        HDC         hMemDC = ::CreateCompatibleDC( hDC );
+        HBITMAP     hMemBmp = ::CreateCompatibleBitmap( hDC, 8, 8 );
+        HBITMAP     hBmpOld = static_cast<HBITMAP>(::SelectObject( hMemDC, hMemBmp ));
+        HBRUSH      hMemBrush = ::CreateSolidBrush( PALETTERGB( 175, 171, 169 ) );
+        HBRUSH      hBrushOld = static_cast<HBRUSH>(::SelectObject( hMemDC, hMemBrush ));
+        bool        bDither16 = true;
+
+        ::PatBlt( hMemDC, 0, 0, 8, 8, PATCOPY );
+        const COLORREF aCol( ::GetPixel( hMemDC, 0, 0 ) );
+
+        for( int nY = 0; ( nY < 8 ) && bDither16; nY++ )
+            for( int nX = 0; ( nX < 8 ) && bDither16; nX++ )
+                if( ::GetPixel( hMemDC, nX, nY ) != aCol )
+                    bDither16 = false;
+
+        ::SelectObject( hMemDC, hBrushOld );
+        ::DeleteObject( hMemBrush );
+        ::SelectObject( hMemDC, hBmpOld );
+        ::DeleteObject( hMemBmp );
+        ::DeleteDC( hMemDC );
+
+        if( bDither16 )
+        {
+            // create DIBPattern for 16Bit dithering
+            long n;
+
+            pSalData->mhDitherDIB = GlobalAlloc( GMEM_FIXED, sizeof( BITMAPINFOHEADER ) + 192 );
+            pSalData->mpDitherDIB = static_cast<BYTE*>(GlobalLock( pSalData->mhDitherDIB ));
+            pSalData->mpDitherDiff = new long[ 256 ];
+            pSalData->mpDitherLow = new BYTE[ 256 ];
+            pSalData->mpDitherHigh = new BYTE[ 256 ];
+            pSalData->mpDitherDIBData = pSalData->mpDitherDIB + sizeof( BITMAPINFOHEADER );
+            memset( pSalData->mpDitherDIB, 0, sizeof( BITMAPINFOHEADER ) );
+
+            BITMAPINFOHEADER* pBIH = reinterpret_cast<BITMAPINFOHEADER*>(pSalData->mpDitherDIB);
+
+            pBIH->biSize = sizeof( BITMAPINFOHEADER );
+            pBIH->biWidth = 8;
+            pBIH->biHeight = 8;
+            pBIH->biPlanes = 1;
+            pBIH->biBitCount = 24;
+
+            for( n = 0; n < 256; n++ )
+                pSalData->mpDitherDiff[ n ] = n - ( n & 248L );
+
+            for( n = 0; n < 256; n++ )
+                pSalData->mpDitherLow[ n ] = static_cast<BYTE>( n & 248 );
+
+            for( n = 0; n < 256; n++ )
+                pSalData->mpDitherHigh[ n ] = static_cast<BYTE>(std::min( pSalData->mpDitherLow[ n ] + 8, 255 ));
+        }
+    }
+    else if ( (nRasterCaps & RC_PALETTE) && (nBitCount == 8) )
+    {
+        BYTE            nRed, nGreen, nBlue;
+        BYTE            nR, nG, nB;
+        PALETTEENTRY*   pPalEntry;
+        LOGPALETTE*     pLogPal;
+        const sal_uInt16    nDitherPalCount = DITHER_PAL_COUNT;
+        sal_uLong           nTotalCount = DITHER_MAX_SYSCOLOR + nDitherPalCount + DITHER_EXTRA_COLORS;
+
+        // create logical palette
+        pLogPal = reinterpret_cast<LOGPALETTE*>(new char[ sizeof( LOGPALETTE ) + ( nTotalCount * sizeof( PALETTEENTRY ) ) ]);
+        pLogPal->palVersion = 0x0300;
+        pLogPal->palNumEntries = static_cast<sal_uInt16>(nTotalCount);
+        pPalEntry = pLogPal->palPalEntry;
+
+        // Standard colors
+        memcpy( pPalEntry, aImplSalSysPalEntryAry, DITHER_MAX_SYSCOLOR * sizeof( PALETTEENTRY ) );
+        pPalEntry += DITHER_MAX_SYSCOLOR;
+
+        // own palette (6/6/6)
+        for( nB=0, nBlue=0; nB < DITHER_PAL_STEPS; nB++, nBlue += DITHER_PAL_DELTA )
+        {
+            for( nG=0, nGreen=0; nG < DITHER_PAL_STEPS; nG++, nGreen += DITHER_PAL_DELTA )
+            {
+                for( nR=0, nRed=0; nR < DITHER_PAL_STEPS; nR++, nRed += DITHER_PAL_DELTA )
+                {
+                    pPalEntry->peRed   = nRed;
+                    pPalEntry->peGreen = nGreen;
+                    pPalEntry->peBlue  = nBlue;
+                    pPalEntry->peFlags = 0;
+                    pPalEntry++;
+                }
+            }
+        }
+
+        // insert special 'Blue' as standard drawing color
+        *pPalEntry++ = aImplExtraColor1;
+
+        // create palette
+        pSalData->mhDitherPal = CreatePalette( pLogPal );
+        delete[] reinterpret_cast<char*>(pLogPal);
+
+        if( pSalData->mhDitherPal )
+        {
+            // create DIBPattern for 8Bit dithering
+            long const nSize = sizeof( BITMAPINFOHEADER ) + ( 256 * sizeof( short ) ) + 64;
+            long n;
+
+            pSalData->mhDitherDIB = GlobalAlloc( GMEM_FIXED, nSize );
+            pSalData->mpDitherDIB = static_cast<BYTE*>(GlobalLock( pSalData->mhDitherDIB ));
+            pSalData->mpDitherDiff = new long[ 256 ];
+            pSalData->mpDitherLow = new BYTE[ 256 ];
+            pSalData->mpDitherHigh = new BYTE[ 256 ];
+            pSalData->mpDitherDIBData = pSalData->mpDitherDIB + sizeof( BITMAPINFOHEADER ) + ( 256 * sizeof( short ) );
+            memset( pSalData->mpDitherDIB, 0, sizeof( BITMAPINFOHEADER ) );
+
+            BITMAPINFOHEADER*   pBIH = reinterpret_cast<BITMAPINFOHEADER*>(pSalData->mpDitherDIB);
+            short*              pColors = reinterpret_cast<short*>( pSalData->mpDitherDIB + sizeof( BITMAPINFOHEADER ) );
+
+            pBIH->biSize = sizeof( BITMAPINFOHEADER );
+            pBIH->biWidth = 8;
+            pBIH->biHeight = 8;
+            pBIH->biPlanes = 1;
+            pBIH->biBitCount = 8;
+
+            for( n = 0; n < nDitherPalCount; n++ )
+                pColors[ n ] = static_cast<short>( n + DITHER_MAX_SYSCOLOR );
+
+            for( n = 0; n < 256; n++ )
+                pSalData->mpDitherDiff[ n ] = n % 51;
+
+            for( n = 0; n < 256; n++ )
+                pSalData->mpDitherLow[ n ] = static_cast<BYTE>( n / 51 );
+
+            for( n = 0; n < 256; n++ )
+                pSalData->mpDitherHigh[ n ] = static_cast<BYTE>(std::min( pSalData->mpDitherLow[ n ] + 1, 5 ));
+        }
+
+        // get system color entries
+        ImplUpdateSysColorEntries();
+    }
+
+    ReleaseDC( nullptr, hDC );
+}
+
+void ImplFreeSalGDI()
+{
+    SalData*    pSalData = GetSalData();
+
+    if (pSalData->mbResourcesAlreadyFreed)
+        return;
+
+    // destroy stock objects
+    int i;
+    for ( i = 0; i < pSalData->mnStockPenCount; i++ )
+        DeletePen( pSalData->mhStockPenAry[i] );
+    for ( i = 0; i < pSalData->mnStockBrushCount; i++ )
+        DeleteBrush( pSalData->mhStockBrushAry[i] );
+
+    // delete 50% Brush
+    if ( pSalData->mh50Brush )
+    {
+        DeleteBrush( pSalData->mh50Brush );
+        pSalData->mh50Brush = nullptr;
+    }
+
+    // delete 50% Bitmap
+    if ( pSalData->mh50Bmp )
+    {
+        DeleteBitmap( pSalData->mh50Bmp );
+        pSalData->mh50Bmp = nullptr;
+    }
+
+    ImplClearHDCCache( pSalData );
+    delete[] pSalData->mpHDCCache;
+
+    // delete Ditherpalette, if existing
+    if ( pSalData->mhDitherPal )
+    {
+        DeleteObject( pSalData->mhDitherPal );
+        pSalData->mhDitherPal = nullptr;
+    }
+
+    // delete buffers for dithering DIB patterns, if necessary
+    if ( pSalData->mhDitherDIB )
+    {
+        GlobalUnlock( pSalData->mhDitherDIB );
+        GlobalFree( pSalData->mhDitherDIB );
+        pSalData->mhDitherDIB = nullptr;
+        delete[] pSalData->mpDitherDiff;
+        delete[] pSalData->mpDitherLow;
+        delete[] pSalData->mpDitherHigh;
+    }
+
+    DeleteSysColorList();
+
+    // delete icon cache
+    SalIcon* pIcon = pSalData->mpFirstIcon;
+    pSalData->mpFirstIcon = nullptr;
+    while( pIcon )
+    {
+        SalIcon* pTmp = pIcon->pNext;
+        DestroyIcon( pIcon->hIcon );
+        DestroyIcon( pIcon->hSmallIcon );
+        delete pIcon;
+        pIcon = pTmp;
+    }
+
+    // delete temporary font list
+    ImplReleaseTempFonts(*pSalData, true);
+
+    pSalData->mbResourcesAlreadyFreed = true;
+}
+
+int ImplIsSysColorEntry( Color nColor )
+{
+    SysColorEntry*  pEntry = pFirstSysColor;
+    const DWORD     nTestRGB = static_cast<DWORD>(RGB( nColor.GetRed(),
+                                           nColor.GetGreen(),
+                                           nColor.GetBlue() ));
+
+    while ( pEntry )
+    {
+        if ( pEntry->nRGB == nTestRGB )
+            return TRUE;
+        pEntry = pEntry->pNext;
+    }
+
+    return FALSE;
+}
+
+static int ImplIsPaletteEntry( BYTE nRed, BYTE nGreen, BYTE nBlue )
+{
+    // dither color?
+    if ( !(nRed % DITHER_PAL_DELTA) && !(nGreen % DITHER_PAL_DELTA) && !(nBlue % DITHER_PAL_DELTA) )
+        return TRUE;
+
+    PALETTEENTRY* pPalEntry = aImplSalSysPalEntryAry;
+
+    // standard palette color?
+    for ( sal_uInt16 i = 0; i < DITHER_MAX_SYSCOLOR; i++, pPalEntry++ )
+    {
+        if( pPalEntry->peRed == nRed && pPalEntry->peGreen == nGreen && pPalEntry->peBlue == nBlue )
+            return TRUE;
+    }
+
+    // extra color?
+    if ( aImplExtraColor1.peRed == nRed &&
+         aImplExtraColor1.peGreen == nGreen &&
+         aImplExtraColor1.peBlue == nBlue )
+    {
+        return TRUE;
+    }
+
+    return FALSE;
+}
+
+static void ImplInsertSysColorEntry( int nSysIndex )
+{
+    const DWORD nRGB = GetSysColor( nSysIndex );
+
+    if ( !ImplIsPaletteEntry( GetRValue( nRGB ), GetGValue( nRGB ), GetBValue( nRGB ) ) )
+    {
+        if ( !pFirstSysColor )
+        {
+            pActSysColor = pFirstSysColor = new SysColorEntry;
+            pFirstSysColor->nRGB = nRGB;
+            pFirstSysColor->pNext = nullptr;
+        }
+        else
+        {
+            pActSysColor = pActSysColor->pNext = new SysColorEntry;
+            pActSysColor->nRGB = nRGB;
+            pActSysColor->pNext = nullptr;
+        }
+    }
+}
+
+void ImplUpdateSysColorEntries()
+{
+    DeleteSysColorList();
+
+    // create new sys color list
+    ImplInsertSysColorEntry( COLOR_ACTIVEBORDER );
+    ImplInsertSysColorEntry( COLOR_INACTIVEBORDER );
+    ImplInsertSysColorEntry( COLOR_GRADIENTACTIVECAPTION );
+    ImplInsertSysColorEntry( COLOR_GRADIENTINACTIVECAPTION );
+    ImplInsertSysColorEntry( COLOR_3DFACE );
+    ImplInsertSysColorEntry( COLOR_3DHILIGHT );
+    ImplInsertSysColorEntry( COLOR_3DLIGHT );
+    ImplInsertSysColorEntry( COLOR_3DSHADOW );
+    ImplInsertSysColorEntry( COLOR_3DDKSHADOW );
+    ImplInsertSysColorEntry( COLOR_INFOBK );
+    ImplInsertSysColorEntry( COLOR_INFOTEXT );
+    ImplInsertSysColorEntry( COLOR_BTNTEXT );
+    ImplInsertSysColorEntry( COLOR_WINDOW );
+    ImplInsertSysColorEntry( COLOR_WINDOWTEXT );
+    ImplInsertSysColorEntry( COLOR_HIGHLIGHT );
+    ImplInsertSysColorEntry( COLOR_HIGHLIGHTTEXT );
+    ImplInsertSysColorEntry( COLOR_MENU );
+    ImplInsertSysColorEntry( COLOR_MENUTEXT );
+    ImplInsertSysColorEntry( COLOR_ACTIVECAPTION );
+    ImplInsertSysColorEntry( COLOR_CAPTIONTEXT );
+    ImplInsertSysColorEntry( COLOR_INACTIVECAPTION );
+    ImplInsertSysColorEntry( COLOR_INACTIVECAPTIONTEXT );
+}
+
+void WinSalGraphics::InitGraphics()
+{
+    // calculate the minimal line width for the printer
+    if ( isPrinter() )
+    {
+        int nDPIX = GetDeviceCaps( getHDC(), LOGPIXELSX );
+        if ( nDPIX <= 300 )
+            mnPenWidth = 0;
+        else
+            mnPenWidth = nDPIX/300;
+    }
+
+    ::SetTextAlign( getHDC(), TA_BASELINE | TA_LEFT | TA_NOUPDATECP );
+    ::SetBkMode( getHDC(), TRANSPARENT );
+    ::SetROP2( getHDC(), R2_COPYPEN );
+
+    mpImpl->Init();
+}
+
+void WinSalGraphics::DeInitGraphics()
+{
+    // clear clip region
+    SelectClipRgn( getHDC(), nullptr );
+    // select default objects
+    if ( mhDefPen )
+        SelectPen( getHDC(), mhDefPen );
+    if ( mhDefBrush )
+        SelectBrush( getHDC(), mhDefBrush );
+    if ( mhDefFont )
+        SelectFont( getHDC(), mhDefFont );
+
+    mpImpl->DeInit();
+}
+
+HDC ImplGetCachedDC( sal_uLong nID, HBITMAP hBmp )
+{
+    SalData*    pSalData = GetSalData();
+    HDCCache*   pC = &pSalData->mpHDCCache[ nID ];
+
+    if( !pC->mhDC )
+    {
+        HDC hDC = GetDC( nullptr );
+
+        // create new DC with DefaultBitmap
+        pC->mhDC = CreateCompatibleDC( hDC );
+
+        if( pSalData->mhDitherPal )
+        {
+            pC->mhDefPal = SelectPalette( pC->mhDC, pSalData->mhDitherPal, TRUE );
+            RealizePalette( pC->mhDC );
+        }
+
+        pC->mhSelBmp = CreateCompatibleBitmap( hDC, CACHED_HDC_DEFEXT, CACHED_HDC_DEFEXT );
+        pC->mhDefBmp = static_cast<HBITMAP>(SelectObject( pC->mhDC, pC->mhSelBmp ));
+
+        ReleaseDC( nullptr, hDC );
+    }
+
+    if ( hBmp )
+        SelectObject( pC->mhDC, pC->mhActBmp = hBmp );
+    else
+        pC->mhActBmp = nullptr;
+
+    return pC->mhDC;
+}
+
+void ImplReleaseCachedDC( sal_uLong nID )
+{
+    SalData*    pSalData = GetSalData();
+    HDCCache*   pC = &pSalData->mpHDCCache[ nID ];
+
+    if ( pC->mhActBmp )
+        SelectObject( pC->mhDC, pC->mhSelBmp );
+}
+
+void ImplClearHDCCache( SalData* pData )
+{
+    for( sal_uLong i = 0; i < CACHESIZE_HDC; i++ )
+    {
+        HDCCache* pC = &pData->mpHDCCache[ i ];
+
+        if( pC->mhDC )
+        {
+            SelectObject( pC->mhDC, pC->mhDefBmp );
+
+            if( pC->mhDefPal )
+                SelectPalette( pC->mhDC, pC->mhDefPal, TRUE );
+
+            DeleteDC( pC->mhDC );
+            DeleteObject( pC->mhSelBmp );
+        }
+    }
+}
+
+std::unique_ptr< CompatibleDC > CompatibleDC::create(SalGraphics &rGraphics, int x, int y, int width, int height)
+{
+#if HAVE_FEATURE_SKIA
+    if (SkiaHelper::isVCLSkiaEnabled())
+        return std::make_unique< SkiaCompatibleDC >( rGraphics, x, y, width, height );
+#endif
+    if (OpenGLHelper::isVCLOpenGLEnabled())
+        return std::make_unique< OpenGLCompatibleDC >( rGraphics, x, y, width, height );
+    return std::unique_ptr< CompatibleDC >( new CompatibleDC( rGraphics, x, y, width, height ));
+}
+
+CompatibleDC::CompatibleDC(SalGraphics &rGraphics, int x, int y, int width, int height, bool disable)
+    : mhBitmap(nullptr)
+    , mpData(nullptr)
+    , maRects(0, 0, width, height, x, y, width, height)
+    , mpImpl(nullptr)
+{
+    WinSalGraphics& rWinGraphics = static_cast<WinSalGraphics&>(rGraphics);
+
+    if( disable )
+    {
+        // we avoid the OpenGL drawing, instead we draw directly to the DC
+        mhCompatibleDC = rWinGraphics.getHDC();
+        return;
+    }
+
+    mpImpl = dynamic_cast<WinSalGraphicsImplBase*>(rWinGraphics.GetImpl());
+    assert(mpImpl != nullptr);
+    mhCompatibleDC = CreateCompatibleDC(rWinGraphics.getHDC());
+
+    // move the origin so that we always paint at 0,0 - to keep the bitmap
+    // small
+    OffsetViewportOrgEx(mhCompatibleDC, -x, -y, nullptr);
+
+    mhBitmap = WinSalVirtualDevice::ImplCreateVirDevBitmap(mhCompatibleDC, width, height, 32, reinterpret_cast<void **>(&mpData));
+
+    mhOrigBitmap = static_cast<HBITMAP>(SelectObject(mhCompatibleDC, mhBitmap));
+}
+
+CompatibleDC::~CompatibleDC()
+{
+    if (mpImpl)
+    {
+        SelectObject(mhCompatibleDC, mhOrigBitmap);
+        DeleteObject(mhBitmap);
+        DeleteDC(mhCompatibleDC);
+    }
+}
+
+void CompatibleDC::fill(sal_uInt32 color)
+{
+    if (!mpData)
+        return;
+
+    sal_uInt32 *p = mpData;
+    for (int i = maRects.mnSrcWidth * maRects.mnSrcHeight; i > 0; --i)
+        *p++ = color;
+}
+
+WinSalGraphics::WinSalGraphics(WinSalGraphics::Type eType, bool bScreen, HWND hWnd, SalGeometryProvider *pProvider):
+    mhLocalDC(nullptr),
+    mbPrinter(eType == WinSalGraphics::PRINTER),
+    mbVirDev(eType == WinSalGraphics::VIRTUAL_DEVICE),
+    mbWindow(eType == WinSalGraphics::WINDOW),
+    mbScreen(bScreen),
+    mhWnd(hWnd),
+    mhRegion(nullptr),
+    mhDefPen(nullptr),
+    mhDefBrush(nullptr),
+    mhDefFont(nullptr),
+    mhDefPal(nullptr),
+    mpStdClipRgnData(nullptr),
+    mnPenWidth(GSL_PEN_WIDTH)
+{
+#if HAVE_FEATURE_SKIA
+    if (SkiaHelper::isVCLSkiaEnabled() && !mbPrinter)
+        mpImpl.reset(new WinSkiaSalGraphicsImpl(*this, pProvider));
+    else
+#endif
+    if (OpenGLHelper::isVCLOpenGLEnabled() && !mbPrinter)
+        mpImpl.reset(new WinOpenGLSalGraphicsImpl(*this, pProvider));
+    else
+        mpImpl.reset(new WinSalGraphicsImpl(*this));
+}
+
+WinSalGraphics::~WinSalGraphics()
+{
+    // free obsolete GDI objects
+    ReleaseFonts();
+
+    if ( mhRegion )
+    {
+        DeleteRegion( mhRegion );
+        mhRegion = nullptr;
+    }
+
+    // delete cache data
+    delete [] reinterpret_cast<BYTE*>(mpStdClipRgnData);
+}
+
+SalGraphicsImpl* WinSalGraphics::GetImpl() const
+{
+    return mpImpl.get();
+}
+
+bool WinSalGraphics::isPrinter() const
+{
+    return mbPrinter;
+}
+
+bool WinSalGraphics::isVirtualDevice() const
+{
+    return mbVirDev;
+}
+
+bool WinSalGraphics::isWindow() const
+{
+    return mbWindow;
+}
+
+bool WinSalGraphics::isScreen() const
+{
+    return mbScreen;
+}
+
+HWND WinSalGraphics::gethWnd()
+{
+    return mhWnd;
+}
+
+void WinSalGraphics::setHWND(HWND hWnd)
+{
+    mhWnd = hWnd;
+}
+
+HPALETTE WinSalGraphics::getDefPal() const
+{
+    return mhDefPal;
+}
+
+void WinSalGraphics::setDefPal(HPALETTE hDefPal)
+{
+    mhDefPal = hDefPal;
+}
+
+HRGN WinSalGraphics::getRegion() const
+{
+    return mhRegion;
+}
+
+void WinSalGraphics::GetResolution( sal_Int32& rDPIX, sal_Int32& rDPIY )
+{
+    rDPIX = GetDeviceCaps( getHDC(), LOGPIXELSX );
+    rDPIY = GetDeviceCaps( getHDC(), LOGPIXELSY );
+
+    // #111139# this fixes the symptom of div by zero on startup
+    // however, printing will fail most likely as communication with
+    // the printer seems not to work in this case
+    if( !rDPIX || !rDPIY )
+        rDPIX = rDPIY = 600;
+}
+
+sal_uInt16 WinSalGraphics::GetBitCount() const
+{
+    return mpImpl->GetBitCount();
+}
+
+long WinSalGraphics::GetGraphicsWidth() const
+{
+    return mpImpl->GetGraphicsWidth();
+}
+
+void WinSalGraphics::ResetClipRegion()
+{
+    mpImpl->ResetClipRegion();
+}
+
+bool WinSalGraphics::setClipRegion( const vcl::Region& i_rClip )
+{
+    return mpImpl->setClipRegion( i_rClip );
+}
+
+void WinSalGraphics::SetLineColor()
+{
+    mpImpl->SetLineColor();
+}
+
+void WinSalGraphics::SetLineColor( Color nColor )
+{
+    mpImpl->SetLineColor( nColor );
+}
+
+void WinSalGraphics::SetFillColor()
+{
+    mpImpl->SetFillColor();
+}
+
+void WinSalGraphics::SetFillColor( Color nColor )
+{
+    mpImpl->SetFillColor( nColor );
+}
+
+void WinSalGraphics::SetXORMode( bool bSet, bool bInvertOnly )
+{
+    mpImpl->SetXORMode( bSet, bInvertOnly );
+}
+
+void WinSalGraphics::SetROPLineColor( SalROPColor nROPColor )
+{
+    mpImpl->SetROPLineColor( nROPColor );
+}
+
+void WinSalGraphics::SetROPFillColor( SalROPColor nROPColor )
+{
+    mpImpl->SetROPFillColor( nROPColor );
+}
+
+void WinSalGraphics::drawPixel( long nX, long nY )
+{
+    mpImpl->drawPixel( nX, nY );
+}
+
+void WinSalGraphics::drawPixel( long nX, long nY, Color nColor )
+{
+    mpImpl->drawPixel( nX, nY, nColor );
+}
+
+void WinSalGraphics::drawLine( long nX1, long nY1, long nX2, long nY2 )
+{
+    mpImpl->drawLine( nX1, nY1, nX2, nY2 );
+}
+
+void WinSalGraphics::drawRect( long nX, long nY, long nWidth, long nHeight )
+{
+    mpImpl->drawRect( nX, nY, nWidth, nHeight );
+}
+
+void WinSalGraphics::drawPolyLine( sal_uInt32 nPoints, const SalPoint* pPtAry )
+{
+    mpImpl->drawPolyLine( nPoints, pPtAry );
+}
+
+void WinSalGraphics::drawPolygon( sal_uInt32 nPoints, const SalPoint* pPtAry )
+{
+    mpImpl->drawPolygon( nPoints, pPtAry );
+}
+
+void WinSalGraphics::drawPolyPolygon( sal_uInt32 nPoly, const sal_uInt32* pPoints,
+                                   PCONSTSALPOINT* pPtAry )
+{
+    mpImpl->drawPolyPolygon( nPoly, pPoints, pPtAry );
+}
+
+bool WinSalGraphics::drawPolyLineBezier( sal_uInt32 nPoints, const SalPoint* pPtAry, const PolyFlags* pFlgAry )
+{
+    return mpImpl->drawPolyLineBezier( nPoints, pPtAry, pFlgAry );
+}
+
+bool WinSalGraphics::drawPolygonBezier( sal_uInt32 nPoints, const SalPoint* pPtAry, const PolyFlags* pFlgAry )
+{
+    return mpImpl->drawPolygonBezier( nPoints, pPtAry, pFlgAry );
+}
+
+bool WinSalGraphics::drawPolyPolygonBezier( sal_uInt32 nPoly, const sal_uInt32* pPoints,
+                                             const SalPoint* const* pPtAry, const PolyFlags* const* pFlgAry )
+{
+    return mpImpl->drawPolyPolygonBezier( nPoly, pPoints, pPtAry, pFlgAry );
+}
+
+static BYTE* ImplSearchEntry( BYTE* pSource, BYTE const * pDest, sal_uLong nComp, sal_uLong nSize )
+{
+    while ( nComp-- >= nSize )
+    {
+        sal_uLong i;
+        for ( i = 0; i < nSize; i++ )
+        {
+            if ( ( pSource[i]&~0x20 ) != ( pDest[i]&~0x20 ) )
+                break;
+        }
+        if ( i == nSize )
+            return pSource;
+        pSource++;
+    }
+    return nullptr;
+}
+
+static bool ImplGetBoundingBox( double* nNumb, BYTE* pSource, sal_uLong nSize )
+{
+    bool    bRetValue = false;
+    BYTE* pDest = ImplSearchEntry( pSource, reinterpret_cast<BYTE const *>("%%BoundingBox:"), nSize, 14 );
+    if ( pDest )
+    {
+        nNumb[0] = nNumb[1] = nNumb[2] = nNumb[3] = 0;
+        pDest += 14;
+
+        int nSizeLeft = nSize - ( pDest - pSource );
+        if ( nSizeLeft > 100 )
+            nSizeLeft = 100;    // only 100 bytes following the bounding box will be checked
+
+        int i;
+        for ( i = 0; ( i < 4 ) && nSizeLeft; i++ )
+        {
+            int     nDivision = 1;
+            bool    bDivision = false;
+            bool    bNegative = false;
+            bool    bValid = true;
+
+            while ( ( --nSizeLeft ) && ( ( *pDest == ' ' ) || ( *pDest == 0x9 ) ) ) pDest++;
+            BYTE nByte = *pDest;
+            while ( nSizeLeft && ( nByte != ' ' ) && ( nByte != 0x9 ) && ( nByte != 0xd ) && ( nByte != 0xa ) )
+            {
+                switch ( nByte )
+                {
+                    case '.' :
+                        if ( bDivision )
+                            bValid = false;
+                        else
+                            bDivision = true;
+                        break;
+                    case '-' :
+                        bNegative = true;
+                        break;
+                    default :
+                        if ( ( nByte < '0' ) || ( nByte > '9' ) )
+                            nSizeLeft = 1;  // error parsing the bounding box values
+                        else if ( bValid )
+                        {
+                            if ( bDivision )
+                                nDivision*=10;
+                            nNumb[i] *= 10;
+                            nNumb[i] += nByte - '0';
+                        }
+                        break;
+                }
+                nSizeLeft--;
+                nByte = *(++pDest);
+            }
+            if ( bNegative )
+                nNumb[i] = -nNumb[i];
+            if ( bDivision && ( nDivision != 1 ) )
+                nNumb[i] /= nDivision;
+        }
+        if ( i == 4 )
+            bRetValue = true;
+    }
+    return bRetValue;
+}
+
+#define POSTSCRIPT_BUFSIZE 0x4000           // MAXIMUM BUFSIZE EQ 0xFFFF
+
+bool WinSalGraphics::drawEPS( long nX, long nY, long nWidth, long nHeight, void* pPtr, sal_uInt32 nSize )
+{
+    bool bRetValue = false;
+
+    if ( mbPrinter )
+    {
+        int nEscape = POSTSCRIPT_PASSTHROUGH;
+
+        if ( Escape( getHDC(), QUERYESCSUPPORT, sizeof( int ), reinterpret_cast<LPSTR>(&nEscape), nullptr ) )
+        {
+            double  nBoundingBox[4];
+
+            if ( ImplGetBoundingBox( nBoundingBox, static_cast<BYTE*>(pPtr), nSize ) )
+            {
+                OStringBuffer aBuf( POSTSCRIPT_BUFSIZE );
+
+                // reserve place for a sal_uInt16
+                aBuf.append( "aa" );
+
+                // #107797# Write out EPS encapsulation header
+
+                // directly taken from the PLRM 3.0, p. 726. Note:
+                // this will definitely cause problems when
+                // recursively creating and embedding PostScript files
+                // in OOo, since we use statically-named variables
+                // here (namely, b4_Inc_state_salWin, dict_count_salWin and
+                // op_count_salWin). Currently, I have no idea on how to
+                // work around that, except from scanning and
+                // interpreting the EPS for unused identifiers.
+
+                // append the real text
+                aBuf.append( "\n\n/b4_Inc_state_salWin save def\n"
+                             "/dict_count_salWin countdictstack def\n"
+                             "/op_count_salWin count 1 sub def\n"
+                             "userdict begin\n"
+                             "/showpage {} def\n"
+                             "0 setgray 0 setlinecap\n"
+                             "1 setlinewidth 0 setlinejoin\n"
+                             "10 setmiterlimit [] 0 setdash newpath\n"
+                             "/languagelevel where\n"
+                             "{\n"
+                             "  pop languagelevel\n"
+                             "  1 ne\n"
+                             "  {\n"
+                             "    false setstrokeadjust false setoverprint\n"
+                             "  } if\n"
+                             "} if\n\n" );
+
+                // #i10737# Apply clipping manually
+
+                // Windows seems to ignore any clipping at the HDC,
+                // when followed by a POSTSCRIPT_PASSTHROUGH
+
+                // Check whether we've got a clipping, consisting of
+                // exactly one rect (other cases should be, but aren't
+                // handled currently)
+
+                // TODO: Handle more than one rectangle here (take
+                // care, the buffer can handle only POSTSCRIPT_BUFSIZE
+                // characters!)
+                if ( mhRegion != nullptr &&
+                     mpStdClipRgnData != nullptr &&
+                     mpClipRgnData == mpStdClipRgnData &&
+                     mpClipRgnData->rdh.nCount == 1 )
+                {
+                    RECT* pRect = &(mpClipRgnData->rdh.rcBound);
+
+                    aBuf.append( "\nnewpath\n" );
+                    aBuf.append( pRect->left );
+                    aBuf.append( " " );
+                    aBuf.append( pRect->top );
+                    aBuf.append( " moveto\n" );
+                    aBuf.append( pRect->right );
+                    aBuf.append( " " );
+                    aBuf.append( pRect->top );
+                    aBuf.append( " lineto\n" );
+                    aBuf.append( pRect->right );
+                    aBuf.append( " " );
+                    aBuf.append( pRect->bottom );
+                    aBuf.append( " lineto\n" );
+                    aBuf.append( pRect->left );
+                    aBuf.append( " " );
+                    aBuf.append( pRect->bottom );
+                    aBuf.append( " lineto\n"
+                                 "closepath\n"
+                                 "clip\n"
+                                 "newpath\n" );
+                }
+
+                // #107797# Write out buffer
+
+                *reinterpret_cast<sal_uInt16*>(const_cast<char *>(aBuf.getStr())) = static_cast<sal_uInt16>( aBuf.getLength() - 2 );
+                Escape ( getHDC(), nEscape, aBuf.getLength(), aBuf.getStr(), nullptr );
+
+                // #107797# Write out EPS transformation code
+
+                double  dM11 = nWidth / ( nBoundingBox[2] - nBoundingBox[0] );
+                double  dM22 = nHeight / (nBoundingBox[1] - nBoundingBox[3] );
+                // reserve a sal_uInt16 again
+                aBuf.setLength( 2 );
+                aBuf.append( "\n\n[" );
+                aBuf.append( dM11 );
+                aBuf.append( " 0 0 " );
+                aBuf.append( dM22 );
+                aBuf.append( ' ' );
+                aBuf.append( nX - ( dM11 * nBoundingBox[0] ) );
+                aBuf.append( ' ' );
+                aBuf.append( nY - ( dM22 * nBoundingBox[3] ) );
+                aBuf.append( "] concat\n"
+                             "%%BeginDocument:\n" );
+                *reinterpret_cast<sal_uInt16*>(const_cast<char *>(aBuf.getStr())) = static_cast<sal_uInt16>( aBuf.getLength() - 2 );
+                Escape ( getHDC(), nEscape, aBuf.getLength(), aBuf.getStr(), nullptr );
+
+                // #107797# Write out actual EPS content
+
+                sal_uLong   nToDo = nSize;
+                sal_uLong   nDoNow;
+                while ( nToDo )
+                {
+                    nDoNow = nToDo;
+                    if ( nToDo > POSTSCRIPT_BUFSIZE - 2 )
+                        nDoNow = POSTSCRIPT_BUFSIZE - 2;
+                    // the following is based on the string buffer allocation
+                    // of size POSTSCRIPT_BUFSIZE at construction time of aBuf
+                    *reinterpret_cast<sal_uInt16*>(const_cast<char *>(aBuf.getStr())) = static_cast<sal_uInt16>(nDoNow);
+                    memcpy( const_cast<char *>(aBuf.getStr() + 2), static_cast<BYTE*>(pPtr) + nSize - nToDo, nDoNow );
+                    sal_uLong nResult = Escape ( getHDC(), nEscape, nDoNow + 2, aBuf.getStr(), nullptr );
+                    if (!nResult )
+                        break;
+                    nToDo -= nResult;
+                }
+
+                // #107797# Write out EPS encapsulation footer
+
+                // reserve a sal_uInt16 again
+                aBuf.setLength( 2 );
+                aBuf.append( "%%EndDocument\n"
+                             "count op_count_salWin sub {pop} repeat\n"
+                             "countdictstack dict_count_salWin sub {end} repeat\n"
+                             "b4_Inc_state_salWin restore\n\n" );
+                *reinterpret_cast<sal_uInt16*>(const_cast<char *>(aBuf.getStr())) = static_cast<sal_uInt16>( aBuf.getLength() - 2 );
+                Escape ( getHDC(), nEscape, aBuf.getLength(), aBuf.getStr(), nullptr );
+                bRetValue = true;
+            }
+        }
+    }
+
+    return bRetValue;
+}
+
+SystemGraphicsData WinSalGraphics::GetGraphicsData() const
+{
+    SystemGraphicsData aRes;
+    aRes.nSize = sizeof(aRes);
+    aRes.hDC = getHDC();
+    return aRes;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */