vcl/win/gdi/salgdi2.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <memory>
  21 #include <string.h>
  22 #include <stdlib.h>
  23
  24 #include <svsys.h>
  25
  26 #include <win/wincomp.hxx>
  27 #include <win/salbmp.h>
  28 #include <win/saldata.hxx>
  29 #include <win/salids.hrc>
  30 #include <win/salgdi.h>
  31 #include <win/salframe.h>
  32
  33 #include <vcl/BitmapAccessMode.hxx>
  34 #include <vcl/BitmapBuffer.hxx>
  35 #include <vcl/BitmapPalette.hxx>
  36 #include <vcl/BitmapReadAccess.hxx>
  37 #include <vcl/Scanline.hxx>
  38 #include <salgdiimpl.hxx>
  39
  40 #include <config_features.h>
  41 #if HAVE_FEATURE_SKIA
  42 #include <skia/win/gdiimpl.hxx>
  43 #include <skia/salbmp.hxx>
  44 #endif
  45
  46
  47 bool WinSalGraphics::supportsOperation( OutDevSupportType eType ) const
  48 {
  49     return mpImpl->supportsOperation(eType);
  50 }
  51
  52 void WinSalGraphics::copyBits( const SalTwoRect& rPosAry, SalGraphics* pSrcGraphics )
  53 {
  54     mpImpl->copyBits( rPosAry, pSrcGraphics );
  55 }
  56
  57 void WinSalGraphics::copyArea( tools::Long nDestX, tools::Long nDestY,
  58                             tools::Long nSrcX, tools::Long nSrcY,
  59                             tools::Long nSrcWidth, tools::Long nSrcHeight,
  60                             bool bWindowInvalidate )
  61 {
  62     mpImpl->copyArea( nDestX, nDestY, nSrcX, nSrcY,
  63             nSrcWidth, nSrcHeight, bWindowInvalidate );
  64 }
  65
  66 namespace
  67 {
  68
  69 class ColorScanlineConverter
  70 {
  71 public:
  72     ScanlineFormat meSourceFormat;
  73
  74     int mnComponentSize;
  75     int mnComponentExchangeIndex;
  76
  77     tools::Long mnScanlineSize;
  78
  79     ColorScanlineConverter(ScanlineFormat eSourceFormat, int nComponentSize, tools::Long nScanlineSize)
  80         : meSourceFormat(eSourceFormat)
  81         , mnComponentSize(nComponentSize)
  82         , mnComponentExchangeIndex(0)
  83         , mnScanlineSize(nScanlineSize)
  84     {
  85         if (meSourceFormat == ScanlineFormat::N32BitTcAbgr ||
  86             meSourceFormat == ScanlineFormat::N32BitTcArgb)
  87         {
  88             mnComponentExchangeIndex = 1;
  89         }
  90     }
  91
  92     void convertScanline(sal_uInt8* pSource, sal_uInt8* pDestination)
  93     {
  94         for (tools::Long x = 0; x < mnScanlineSize; x += mnComponentSize)
  95         {
  96             for (int i = 0; i < mnComponentSize; ++i)
  97             {
  98                 pDestination[x + i] = pSource[x + i];
  99             }
 100             pDestination[x + mnComponentExchangeIndex + 0] = pSource[x + mnComponentExchangeIndex + 2];
 101             pDestination[x + mnComponentExchangeIndex + 2] = pSource[x + mnComponentExchangeIndex + 0];
 102         }
 103     }
 104 };
 105
 106 void convertToWinSalBitmap(SalBitmap& rSalBitmap, WinSalBitmap& rWinSalBitmap)
 107 {
 108     BitmapPalette aBitmapPalette;
 109 #if HAVE_FEATURE_SKIA
 110     if(SkiaSalBitmap* pSkiaSalBitmap = dynamic_cast<SkiaSalBitmap*>(&rSalBitmap))
 111         aBitmapPalette = pSkiaSalBitmap->Palette();
 112 #endif
 113
 114     BitmapBuffer* pRead = rSalBitmap.AcquireBuffer(BitmapAccessMode::Read);
 115
 116     rWinSalBitmap.Create(rSalBitmap.GetSize(), vcl::bitDepthToPixelFormat(rSalBitmap.GetBitCount()), aBitmapPalette);
 117     BitmapBuffer* pWrite = rWinSalBitmap.AcquireBuffer(BitmapAccessMode::Write);
 118
 119     sal_uInt8* pSource(pRead->mpBits);
 120     sal_uInt8* pDestination(pWrite->mpBits);
 121     tools::Long readRowChange = pRead->mnScanlineSize;
 122     if (pRead->meDirection == ScanlineDirection::TopDown)
 123     {
 124         pSource += pRead->mnScanlineSize * (pRead->mnHeight - 1);
 125         readRowChange = -readRowChange;
 126     }
 127
 128     std::unique_ptr<ColorScanlineConverter> pConverter;
 129
 130     if (pRead->meFormat == ScanlineFormat::N24BitTcRgb)
 131     {
 132         pConverter.reset(new ColorScanlineConverter(ScanlineFormat::N24BitTcRgb, 3, pRead->mnScanlineSize));
 133     }
 134     else if (pRead->meFormat == ScanlineFormat::N32BitTcRgba)
 135     {
 136         pConverter.reset(new ColorScanlineConverter(ScanlineFormat::N32BitTcRgba, 4, pRead->mnScanlineSize));
 137     }
 138     if (pConverter)
 139     {
 140         for (tools::Long y = 0; y < pRead->mnHeight; y++)
 141         {
 142             pConverter->convertScanline(pSource, pDestination);
 143             pSource += readRowChange;
 144             pDestination += pWrite->mnScanlineSize;
 145         }
 146     }
 147     else
 148     {
 149         for (tools::Long y = 0; y < pRead->mnHeight; y++)
 150         {
 151             memcpy(pDestination, pSource, pRead->mnScanlineSize);
 152             pSource += readRowChange;
 153             pDestination += pWrite->mnScanlineSize;
 154         }
 155     }
 156     rWinSalBitmap.ReleaseBuffer(pWrite, BitmapAccessMode::Write);
 157
 158     rSalBitmap.ReleaseBuffer(pRead, BitmapAccessMode::Read);
 159 }
 160
 161 } // end anonymous namespace
 162
 163 void WinSalGraphics::drawBitmap(const SalTwoRect& rPosAry, const SalBitmap& rSalBitmap)
 164 {
 165     assert(&rSalBitmap && "msvc -analyze gets confused here");
 166     if (dynamic_cast<const WinSalBitmap*>(&rSalBitmap) == nullptr
 167 #if HAVE_FEATURE_SKIA
 168         && dynamic_cast<WinSkiaSalGraphicsImpl*>(mpImpl.get()) == nullptr
 169 #endif
 170         )
 171     {
 172         WinSalBitmap aWinSalBitmap;
 173         SalBitmap& rConstBitmap = const_cast<SalBitmap&>(rSalBitmap);
 174         convertToWinSalBitmap(rConstBitmap, aWinSalBitmap);
 175         mpImpl->drawBitmap(rPosAry, aWinSalBitmap);
 176     }
 177     else
 178     {
 179         mpImpl->drawBitmap(rPosAry, rSalBitmap);
 180     }
 181 }
 182
 183 void WinSalGraphics::drawBitmap( const SalTwoRect& rPosAry,
 184                               const SalBitmap& rSSalBitmap,
 185                               const SalBitmap& rSTransparentBitmap )
 186 {
 187     assert(&rSSalBitmap && "msvc -analyze gets confused here");
 188     if (dynamic_cast<const WinSalBitmap*>(&rSSalBitmap) == nullptr
 189 #if HAVE_FEATURE_SKIA
 190         && dynamic_cast<WinSkiaSalGraphicsImpl*>(mpImpl.get()) == nullptr
 191 #endif
 192         )
 193     {
 194         WinSalBitmap aWinSalBitmap;
 195         SalBitmap& rConstBitmap = const_cast<SalBitmap&>(rSSalBitmap);
 196         convertToWinSalBitmap(rConstBitmap, aWinSalBitmap);
 197
 198         WinSalBitmap aWinTransparentSalBitmap;
 199         SalBitmap& rConstTransparentBitmap = const_cast<SalBitmap&>(rSTransparentBitmap);
 200         convertToWinSalBitmap(rConstTransparentBitmap, aWinTransparentSalBitmap);
 201
 202         mpImpl->drawBitmap(rPosAry, aWinSalBitmap, aWinTransparentSalBitmap);
 203     }
 204     else
 205     {
 206         mpImpl->drawBitmap(rPosAry, rSSalBitmap, rSTransparentBitmap);
 207     }
 208 }
 209
 210 bool WinSalGraphics::drawAlphaRect( tools::Long nX, tools::Long nY, tools::Long nWidth,
 211                                     tools::Long nHeight, sal_uInt8 nTransparency )
 212 {
 213     return mpImpl->drawAlphaRect( nX, nY, nWidth, nHeight, nTransparency );
 214 }
 215
 216 void WinSalGraphics::drawMask( const SalTwoRect& rPosAry,
 217                             const SalBitmap& rSSalBitmap,
 218                             Color nMaskColor )
 219 {
 220     mpImpl->drawMask( rPosAry, rSSalBitmap, nMaskColor );
 221 }
 222
 223 std::shared_ptr<SalBitmap> WinSalGraphics::getBitmap( tools::Long nX, tools::Long nY, tools::Long nDX, tools::Long nDY )
 224 {
 225     return mpImpl->getBitmap( nX, nY, nDX, nDY );
 226 }
 227
 228 Color WinSalGraphics::getPixel( tools::Long nX, tools::Long nY )
 229 {
 230     return mpImpl->getPixel( nX, nY );
 231 }
 232
 233 void WinSalGraphics::invert( tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight, SalInvert nFlags )
 234 {
 235     mpImpl->invert( nX, nY, nWidth, nHeight, nFlags );
 236 }
 237
 238 void WinSalGraphics::invert( sal_uInt32 nPoints, const Point* pPtAry, SalInvert nSalFlags )
 239 {
 240     mpImpl->invert( nPoints, pPtAry, nSalFlags );
 241 }
 242
 243 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */