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-rw-r--r--vcl/win/gdi/salbmp.cxx917
1 files changed, 917 insertions, 0 deletions
diff --git a/vcl/win/gdi/salbmp.cxx b/vcl/win/gdi/salbmp.cxx
new file mode 100644
index 000000000..3538b503f
--- /dev/null
+++ b/vcl/win/gdi/salbmp.cxx
@@ -0,0 +1,917 @@
+/*
+ * 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 <svsys.h>
+#include <vcl/bitmap.hxx>
+#include <vcl/BitmapAccessMode.hxx>
+#include <vcl/BitmapBuffer.hxx>
+#include <vcl/BitmapPalette.hxx>
+#include <vcl/ColorMask.hxx>
+#include <vcl/Scanline.hxx>
+#include <com/sun/star/beans/XFastPropertySet.hpp>
+#include <win/wincomp.hxx>
+#include <win/salgdi.h>
+#include <win/saldata.hxx>
+#include <win/salbmp.h>
+#include <string.h>
+#include <vcl/timer.hxx>
+#include <cppuhelper/basemutex.hxx>
+#include <sal/log.hxx>
+#include <tools/helpers.hxx>
+#include <map>
+
+#if defined _MSC_VER
+#ifndef min
+#define min(a,b) (((a) < (b)) ? (a) : (b))
+#endif
+#ifndef max
+#define max(a,b) (((a) > (b)) ? (a) : (b))
+#endif
+#endif
+
+#include <prewin.h>
+#include <gdiplus.h>
+#include <postwin.h>
+
+#if defined _MSC_VER
+#undef min
+#undef max
+#endif
+
+WinSalBitmap::WinSalBitmap()
+: SalBitmap(),
+ basegfx::SystemDependentDataHolder(),
+ maSize(),
+ mhDIB(nullptr),
+ mhDDB(nullptr),
+ mnBitCount(0)
+{
+}
+
+WinSalBitmap::~WinSalBitmap()
+{
+ Destroy();
+}
+
+void WinSalBitmap::Destroy()
+{
+ if( mhDIB )
+ GlobalFree( mhDIB );
+ else if( mhDDB )
+ DeleteObject( mhDDB );
+
+ maSize = Size();
+ mnBitCount = 0;
+}
+
+namespace {
+
+class SystemDependentData_GdiPlusBitmap : public basegfx::SystemDependentData
+{
+private:
+ std::shared_ptr<Gdiplus::Bitmap> mpGdiPlusBitmap;
+ const WinSalBitmap* mpAssociatedAlpha;
+
+public:
+ SystemDependentData_GdiPlusBitmap(
+ basegfx::SystemDependentDataManager& rSystemDependentDataManager,
+ const std::shared_ptr<Gdiplus::Bitmap>& rGdiPlusBitmap,
+ const WinSalBitmap* pAssociatedAlpha);
+
+ const WinSalBitmap* getAssociatedAlpha() const { return mpAssociatedAlpha; }
+ const std::shared_ptr<Gdiplus::Bitmap>& getGdiPlusBitmap() const { return mpGdiPlusBitmap; }
+
+ virtual sal_Int64 estimateUsageInBytes() const override;
+};
+
+}
+
+SystemDependentData_GdiPlusBitmap::SystemDependentData_GdiPlusBitmap(
+ basegfx::SystemDependentDataManager& rSystemDependentDataManager,
+ const std::shared_ptr<Gdiplus::Bitmap>& rGdiPlusBitmap,
+ const WinSalBitmap* pAssociatedAlpha)
+: basegfx::SystemDependentData(rSystemDependentDataManager),
+ mpGdiPlusBitmap(rGdiPlusBitmap),
+ mpAssociatedAlpha(pAssociatedAlpha)
+{
+}
+
+sal_Int64 SystemDependentData_GdiPlusBitmap::estimateUsageInBytes() const
+{
+ sal_Int64 nRetval(0);
+
+ if(mpGdiPlusBitmap)
+ {
+ const UINT nWidth(mpGdiPlusBitmap->GetWidth());
+ const UINT nHeight(mpGdiPlusBitmap->GetHeight());
+
+ if(0 != nWidth && 0 != nHeight)
+ {
+ nRetval = nWidth * nHeight;
+
+ switch(mpGdiPlusBitmap->GetPixelFormat())
+ {
+ case PixelFormat1bppIndexed:
+ nRetval /= 8;
+ break;
+ case PixelFormat4bppIndexed:
+ nRetval /= 4;
+ break;
+ case PixelFormat16bppGrayScale:
+ case PixelFormat16bppRGB555:
+ case PixelFormat16bppRGB565:
+ case PixelFormat16bppARGB1555:
+ nRetval *= 2;
+ break;
+ case PixelFormat24bppRGB:
+ nRetval *= 3;
+ break;
+ case PixelFormat32bppRGB:
+ case PixelFormat32bppARGB:
+ case PixelFormat32bppPARGB:
+ case PixelFormat32bppCMYK:
+ nRetval *= 4;
+ break;
+ case PixelFormat48bppRGB:
+ nRetval *= 6;
+ break;
+ case PixelFormat64bppARGB:
+ case PixelFormat64bppPARGB:
+ nRetval *= 8;
+ break;
+ default:
+ case PixelFormat8bppIndexed:
+ break;
+ }
+ }
+ }
+
+ return nRetval;
+}
+
+std::shared_ptr< Gdiplus::Bitmap > WinSalBitmap::ImplGetGdiPlusBitmap(const WinSalBitmap* pAlphaSource) const
+{
+ std::shared_ptr< Gdiplus::Bitmap > aRetval;
+
+ // try to access buffered data
+ std::shared_ptr<SystemDependentData_GdiPlusBitmap> pSystemDependentData_GdiPlusBitmap(
+ getSystemDependentData<SystemDependentData_GdiPlusBitmap>());
+
+ if(pSystemDependentData_GdiPlusBitmap)
+ {
+ // check data validity
+ if(pSystemDependentData_GdiPlusBitmap->getAssociatedAlpha() != pAlphaSource
+ || 0 == maSize.Width()
+ || 0 == maSize.Height())
+ {
+ // #122350# if associated alpha with which the GDIPlus was constructed has changed
+ // it is necessary to remove it from buffer, reset reference to it and reconstruct
+ // data invalid, forget
+ pSystemDependentData_GdiPlusBitmap.reset();
+ }
+ }
+
+ if(pSystemDependentData_GdiPlusBitmap)
+ {
+ // use from buffer
+ aRetval = pSystemDependentData_GdiPlusBitmap->getGdiPlusBitmap();
+ }
+ else if(!maSize.IsEmpty())
+ {
+ // create and set data
+ const WinSalBitmap* pAssociatedAlpha(nullptr);
+
+ if(pAlphaSource)
+ {
+ aRetval = const_cast< WinSalBitmap* >(this)->ImplCreateGdiPlusBitmap(*pAlphaSource);
+ pAssociatedAlpha = pAlphaSource;
+ }
+ else
+ {
+ aRetval = const_cast< WinSalBitmap* >(this)->ImplCreateGdiPlusBitmap();
+ pAssociatedAlpha = nullptr;
+ }
+
+ // add to buffering mechanism
+ addOrReplaceSystemDependentData<SystemDependentData_GdiPlusBitmap>(
+ ImplGetSystemDependentDataManager(),
+ aRetval,
+ pAssociatedAlpha);
+ }
+
+ return aRetval;
+}
+
+std::shared_ptr<Gdiplus::Bitmap> WinSalBitmap::ImplCreateGdiPlusBitmap()
+{
+ std::shared_ptr<Gdiplus::Bitmap> pRetval;
+ WinSalBitmap* pSalRGB = this;
+ std::unique_ptr<WinSalBitmap> pExtraWinSalRGB;
+
+ if(!pSalRGB->ImplGethDIB())
+ {
+ // we need DIB for success with AcquireBuffer, create a replacement WinSalBitmap
+ pExtraWinSalRGB.reset(new WinSalBitmap());
+ pExtraWinSalRGB->Create(*pSalRGB, vcl::bitDepthToPixelFormat(pSalRGB->GetBitCount()));
+ pSalRGB = pExtraWinSalRGB.get();
+ }
+
+ BitmapBuffer* pRGB = pSalRGB->AcquireBuffer(BitmapAccessMode::Read);
+ std::unique_ptr<BitmapBuffer> pExtraRGB;
+
+ if(pRGB && ScanlineFormat::N24BitTcBgr != RemoveScanline(pRGB->mnFormat))
+ {
+ // convert source bitmap to BMP_FORMAT_24BIT_TC_BGR format if not yet in that format
+ SalTwoRect aSalTwoRect(0, 0, pRGB->mnWidth, pRGB->mnHeight, 0, 0, pRGB->mnWidth, pRGB->mnHeight);
+ pExtraRGB = StretchAndConvert(
+ *pRGB,
+ aSalTwoRect,
+ ScanlineFormat::N24BitTcBgr);
+
+ pSalRGB->ReleaseBuffer(pRGB, BitmapAccessMode::Write);
+ pRGB = pExtraRGB.get();
+ }
+
+ if(pRGB
+ && pRGB->mnWidth > 0
+ && pRGB->mnHeight > 0
+ && ScanlineFormat::N24BitTcBgr == RemoveScanline(pRGB->mnFormat))
+ {
+ const sal_uInt32 nW(pRGB->mnWidth);
+ const sal_uInt32 nH(pRGB->mnHeight);
+
+ pRetval = std::make_shared<Gdiplus::Bitmap>(nW, nH, PixelFormat24bppRGB);
+
+ if ( pRetval->GetLastStatus() == Gdiplus::Ok )
+ {
+ sal_uInt8* pSrcRGB(pRGB->mpBits);
+ const sal_uInt32 nExtraRGB(pRGB->mnScanlineSize - (nW * 3));
+ const bool bTopDown(pRGB->mnFormat & ScanlineFormat::TopDown);
+ const Gdiplus::Rect aAllRect(0, 0, nW, nH);
+ Gdiplus::BitmapData aGdiPlusBitmapData;
+ pRetval->LockBits(&aAllRect, Gdiplus::ImageLockModeWrite, PixelFormat24bppRGB, &aGdiPlusBitmapData);
+
+ // copy data to Gdiplus::Bitmap; format is BGR here in both cases, so memcpy is possible
+ for(sal_uInt32 y(0); y < nH; y++)
+ {
+ const sal_uInt32 nYInsert(bTopDown ? y : nH - y - 1);
+ sal_uInt8* targetPixels = static_cast<sal_uInt8*>(aGdiPlusBitmapData.Scan0) + (nYInsert * aGdiPlusBitmapData.Stride);
+
+ memcpy(targetPixels, pSrcRGB, nW * 3);
+ pSrcRGB += nW * 3 + nExtraRGB;
+ }
+
+ pRetval->UnlockBits(&aGdiPlusBitmapData);
+ }
+ else
+ {
+ pRetval.reset();
+ }
+ }
+
+ if(pExtraRGB)
+ {
+ // #i123478# shockingly, BitmapBuffer does not free the memory it is controlling
+ // in its destructor, this *has to be done by hand*. Doing it here now
+ delete[] pExtraRGB->mpBits;
+ pExtraRGB.reset();
+ }
+ else
+ {
+ pSalRGB->ReleaseBuffer(pRGB, BitmapAccessMode::Read);
+ }
+
+ return pRetval;
+}
+
+std::shared_ptr<Gdiplus::Bitmap> WinSalBitmap::ImplCreateGdiPlusBitmap(const WinSalBitmap& rAlphaSource)
+{
+ std::shared_ptr<Gdiplus::Bitmap> pRetval;
+ WinSalBitmap* pSalRGB = this;
+ std::unique_ptr<WinSalBitmap> pExtraWinSalRGB;
+
+ if(!pSalRGB->ImplGethDIB())
+ {
+ // we need DIB for success with AcquireBuffer, create a replacement WinSalBitmap
+ pExtraWinSalRGB.reset(new WinSalBitmap());
+ pExtraWinSalRGB->Create(*pSalRGB, vcl::bitDepthToPixelFormat(pSalRGB->GetBitCount()));
+ pSalRGB = pExtraWinSalRGB.get();
+ }
+
+ BitmapBuffer* pRGB = pSalRGB->AcquireBuffer(BitmapAccessMode::Read);
+ std::unique_ptr<BitmapBuffer> pExtraRGB;
+
+ if(pRGB && ScanlineFormat::N24BitTcBgr != RemoveScanline(pRGB->mnFormat))
+ {
+ // convert source bitmap to canlineFormat::N24BitTcBgr format if not yet in that format
+ SalTwoRect aSalTwoRect(0, 0, pRGB->mnWidth, pRGB->mnHeight, 0, 0, pRGB->mnWidth, pRGB->mnHeight);
+ pExtraRGB = StretchAndConvert(
+ *pRGB,
+ aSalTwoRect,
+ ScanlineFormat::N24BitTcBgr);
+
+ pSalRGB->ReleaseBuffer(pRGB, BitmapAccessMode::Read);
+ pRGB = pExtraRGB.get();
+ }
+
+ WinSalBitmap* pSalA = const_cast< WinSalBitmap* >(&rAlphaSource);
+ std::unique_ptr<WinSalBitmap> pExtraWinSalA;
+
+ if(!pSalA->ImplGethDIB())
+ {
+ // we need DIB for success with AcquireBuffer, create a replacement WinSalBitmap
+ pExtraWinSalA.reset(new WinSalBitmap());
+ pExtraWinSalA->Create(*pSalA, vcl::bitDepthToPixelFormat(pSalA->GetBitCount()));
+ pSalA = pExtraWinSalA.get();
+ }
+
+ BitmapBuffer* pA = pSalA->AcquireBuffer(BitmapAccessMode::Read);
+ std::unique_ptr<BitmapBuffer> pExtraA;
+
+ if(pA && ScanlineFormat::N8BitPal != RemoveScanline(pA->mnFormat))
+ {
+ // convert alpha bitmap to ScanlineFormat::N8BitPal format if not yet in that format
+ SalTwoRect aSalTwoRect(0, 0, pA->mnWidth, pA->mnHeight, 0, 0, pA->mnWidth, pA->mnHeight);
+ const BitmapPalette& rTargetPalette = Bitmap::GetGreyPalette(256);
+
+ pExtraA = StretchAndConvert(
+ *pA,
+ aSalTwoRect,
+ ScanlineFormat::N8BitPal,
+ rTargetPalette);
+
+ pSalA->ReleaseBuffer(pA, BitmapAccessMode::Read);
+ pA = pExtraA.get();
+ }
+
+ if(pRGB
+ && pA
+ && pRGB->mnWidth > 0
+ && pRGB->mnHeight > 0
+ && pRGB->mnWidth == pA->mnWidth
+ && pRGB->mnHeight == pA->mnHeight
+ && ScanlineFormat::N24BitTcBgr == RemoveScanline(pRGB->mnFormat)
+ && ScanlineFormat::N8BitPal == RemoveScanline(pA->mnFormat))
+ {
+ // we have alpha and bitmap in known formats, create GdiPlus Bitmap as 32bit ARGB
+ const sal_uInt32 nW(pRGB->mnWidth);
+ const sal_uInt32 nH(pRGB->mnHeight);
+
+ pRetval = std::make_shared<Gdiplus::Bitmap>(nW, nH, PixelFormat32bppARGB);
+
+ if ( pRetval->GetLastStatus() == Gdiplus::Ok ) // 2nd place to secure with new Gdiplus::Bitmap
+ {
+ sal_uInt8* pSrcRGB(pRGB->mpBits);
+ sal_uInt8* pSrcA(pA->mpBits);
+ const sal_uInt32 nExtraRGB(pRGB->mnScanlineSize - (nW * 3));
+ const sal_uInt32 nExtraA(pA->mnScanlineSize - nW);
+ const bool bTopDown(pRGB->mnFormat & ScanlineFormat::TopDown);
+ const Gdiplus::Rect aAllRect(0, 0, nW, nH);
+ Gdiplus::BitmapData aGdiPlusBitmapData;
+ pRetval->LockBits(&aAllRect, Gdiplus::ImageLockModeWrite, PixelFormat32bppARGB, &aGdiPlusBitmapData);
+
+ // copy data to Gdiplus::Bitmap; format is BGRA; need to mix BGR from Bitmap and
+ // A from alpha, so inner loop is needed (who invented BitmapEx..?)
+ for(sal_uInt32 y(0); y < nH; y++)
+ {
+ const sal_uInt32 nYInsert(bTopDown ? y : nH - y - 1);
+ sal_uInt8* targetPixels = static_cast<sal_uInt8*>(aGdiPlusBitmapData.Scan0) + (nYInsert * aGdiPlusBitmapData.Stride);
+
+ for(sal_uInt32 x(0); x < nW; x++)
+ {
+ *targetPixels++ = *pSrcRGB++;
+ *targetPixels++ = *pSrcRGB++;
+ *targetPixels++ = *pSrcRGB++;
+ *targetPixels++ = 0xff - *pSrcA++;
+ }
+
+ pSrcRGB += nExtraRGB;
+ pSrcA += nExtraA;
+ }
+
+ pRetval->UnlockBits(&aGdiPlusBitmapData);
+ }
+ else
+ {
+ pRetval.reset();
+ }
+ }
+
+ if(pExtraA)
+ {
+ // #i123478# shockingly, BitmapBuffer does not free the memory it is controlling
+ // in its destructor, this *has to be done handish*. Doing it here now
+ delete[] pExtraA->mpBits;
+ pExtraA.reset();
+ }
+ else
+ {
+ pSalA->ReleaseBuffer(pA, BitmapAccessMode::Read);
+ }
+
+ pExtraWinSalA.reset();
+
+ if(pExtraRGB)
+ {
+ // #i123478# shockingly, BitmapBuffer does not free the memory it is controlling
+ // in its destructor, this *has to be done by hand*. Doing it here now
+ delete[] pExtraRGB->mpBits;
+ pExtraRGB.reset();
+ }
+ else
+ {
+ pSalRGB->ReleaseBuffer(pRGB, BitmapAccessMode::Read);
+ }
+
+ pExtraWinSalRGB.reset();
+
+ return pRetval;
+}
+
+bool WinSalBitmap::Create( HANDLE hBitmap )
+{
+ bool bRet = true;
+
+ mhDDB = static_cast<HBITMAP>( hBitmap );
+
+ if( mhDIB )
+ {
+ PBITMAPINFOHEADER pBIH = static_cast<PBITMAPINFOHEADER>(GlobalLock( mhDIB ));
+
+ maSize = Size( pBIH->biWidth, pBIH->biHeight );
+ mnBitCount = pBIH->biBitCount;
+
+ if( mnBitCount )
+ mnBitCount = ( mnBitCount <= 1 ) ? 1 : ( mnBitCount <= 4 ) ? 4 : ( mnBitCount <= 8 ) ? 8 : 24;
+
+ GlobalUnlock( mhDIB );
+ }
+ else if( mhDDB )
+ {
+ BITMAP aDDBInfo;
+
+ if( GetObjectW( mhDDB, sizeof( aDDBInfo ), &aDDBInfo ) )
+ {
+ maSize = Size( aDDBInfo.bmWidth, aDDBInfo.bmHeight );
+ mnBitCount = aDDBInfo.bmPlanes * aDDBInfo.bmBitsPixel;
+
+ if( mnBitCount )
+ {
+ mnBitCount = ( mnBitCount <= 1 ) ? 1 :
+ ( mnBitCount <= 4 ) ? 4 :
+ ( mnBitCount <= 8 ) ? 8 : 24;
+ }
+ }
+ else
+ {
+ mhDDB = nullptr;
+ bRet = false;
+ }
+ }
+ else
+ bRet = false;
+
+ return bRet;
+}
+
+bool WinSalBitmap::Create(const Size& rSize, vcl::PixelFormat ePixelFormat, const BitmapPalette& rPal)
+{
+ bool bRet = false;
+
+ mhDIB = ImplCreateDIB(rSize, ePixelFormat, rPal);
+
+ if( mhDIB )
+ {
+ maSize = rSize;
+ mnBitCount = vcl::pixelFormatBitCount(ePixelFormat);
+ bRet = true;
+ }
+
+ return bRet;
+}
+
+bool WinSalBitmap::Create( const SalBitmap& rSSalBitmap )
+{
+ bool bRet = false;
+ const WinSalBitmap& rSalBitmap = static_cast<const WinSalBitmap&>(rSSalBitmap);
+
+ if ( rSalBitmap.mhDIB || rSalBitmap.mhDDB )
+ {
+ HANDLE hNewHdl = ImplCopyDIBOrDDB( rSalBitmap.mhDIB ? rSalBitmap.mhDIB : rSalBitmap.mhDDB,
+ rSalBitmap.mhDIB != nullptr );
+
+ if ( hNewHdl )
+ {
+ if( rSalBitmap.mhDIB )
+ mhDIB = static_cast<HGLOBAL>(hNewHdl);
+ else if( rSalBitmap.mhDDB )
+ mhDDB = static_cast<HBITMAP>(hNewHdl);
+
+ maSize = rSalBitmap.maSize;
+ mnBitCount = rSalBitmap.mnBitCount;
+
+ bRet = true;
+ }
+ }
+
+ return bRet;
+}
+
+bool WinSalBitmap::Create( const SalBitmap& rSSalBmp, SalGraphics* pSGraphics )
+{
+ bool bRet = false;
+
+ const WinSalBitmap& rSalBmp = static_cast<const WinSalBitmap&>(rSSalBmp);
+ WinSalGraphics* pGraphics = static_cast<WinSalGraphics*>(pSGraphics);
+
+ if( rSalBmp.mhDIB )
+ {
+ PBITMAPINFO pBI = static_cast<PBITMAPINFO>(GlobalLock( rSalBmp.mhDIB ));
+ HDC hDC = pGraphics->getHDC();
+ HBITMAP hNewDDB;
+ BITMAP aDDBInfo;
+ PBYTE pBits = reinterpret_cast<PBYTE>(pBI) + pBI->bmiHeader.biSize +
+ ImplGetDIBColorCount( rSalBmp.mhDIB ) * sizeof( RGBQUAD );
+
+ if( pBI->bmiHeader.biBitCount == 1 )
+ {
+ hNewDDB = CreateBitmap( pBI->bmiHeader.biWidth, pBI->bmiHeader.biHeight, 1, 1, nullptr );
+
+ if( hNewDDB )
+ SetDIBits( hDC, hNewDDB, 0, pBI->bmiHeader.biHeight, pBits, pBI, DIB_RGB_COLORS );
+ }
+ else
+ hNewDDB = CreateDIBitmap( hDC, &pBI->bmiHeader, CBM_INIT, pBits, pBI, DIB_RGB_COLORS );
+
+ GlobalUnlock( rSalBmp.mhDIB );
+
+ if( hNewDDB && GetObjectW( hNewDDB, sizeof( aDDBInfo ), &aDDBInfo ) )
+ {
+ mhDDB = hNewDDB;
+ maSize = Size( aDDBInfo.bmWidth, aDDBInfo.bmHeight );
+ mnBitCount = aDDBInfo.bmPlanes * aDDBInfo.bmBitsPixel;
+
+ bRet = true;
+ }
+ else if( hNewDDB )
+ DeleteObject( hNewDDB );
+ }
+
+ return bRet;
+}
+
+bool WinSalBitmap::Create(const SalBitmap& rSSalBmp, vcl::PixelFormat eNewPixelFormat)
+{
+ bool bRet = false;
+
+ const WinSalBitmap& rSalBmp = static_cast<const WinSalBitmap&>(rSSalBmp);
+
+ if( rSalBmp.mhDDB )
+ {
+ mhDIB = ImplCreateDIB( rSalBmp.maSize, eNewPixelFormat, BitmapPalette() );
+
+ if( mhDIB )
+ {
+ PBITMAPINFO pBI = static_cast<PBITMAPINFO>(GlobalLock( mhDIB ));
+ const int nLines = static_cast<int>(rSalBmp.maSize.Height());
+ HDC hDC = GetDC( nullptr );
+ PBYTE pBits = reinterpret_cast<PBYTE>(pBI) + pBI->bmiHeader.biSize +
+ ImplGetDIBColorCount( mhDIB ) * sizeof( RGBQUAD );
+ SalData* pSalData = GetSalData();
+ HPALETTE hOldPal = nullptr;
+
+ if ( pSalData->mhDitherPal )
+ {
+ hOldPal = SelectPalette( hDC, pSalData->mhDitherPal, TRUE );
+ RealizePalette( hDC );
+ }
+
+ if( GetDIBits( hDC, rSalBmp.mhDDB, 0, nLines, pBits, pBI, DIB_RGB_COLORS ) == nLines )
+ {
+ GlobalUnlock( mhDIB );
+ maSize = rSalBmp.maSize;
+ mnBitCount = vcl::pixelFormatBitCount(eNewPixelFormat);
+ bRet = true;
+ }
+ else
+ {
+ GlobalUnlock( mhDIB );
+ GlobalFree( mhDIB );
+ mhDIB = nullptr;
+ }
+
+ if( hOldPal )
+ SelectPalette( hDC, hOldPal, TRUE );
+
+ ReleaseDC( nullptr, hDC );
+ }
+ }
+
+ return bRet;
+}
+
+bool WinSalBitmap::Create( const css::uno::Reference< css::rendering::XBitmapCanvas >& rBitmapCanvas, Size& /*rSize*/, bool bMask )
+{
+ css::uno::Reference< css::beans::XFastPropertySet >
+ xFastPropertySet( rBitmapCanvas, css::uno::UNO_QUERY );
+
+ if( xFastPropertySet ) {
+ css::uno::Sequence< css::uno::Any > args;
+
+ if( xFastPropertySet->getFastPropertyValue(bMask ? 2 : 1) >>= args ) {
+ sal_Int64 aHBmp64;
+
+ if( args[0] >>= aHBmp64 ) {
+ return Create( reinterpret_cast<HANDLE>(aHBmp64) );
+ }
+ }
+ }
+ return false;
+}
+
+sal_uInt16 WinSalBitmap::ImplGetDIBColorCount( HGLOBAL hDIB )
+{
+ sal_uInt16 nColors = 0;
+
+ if( hDIB )
+ {
+ PBITMAPINFO pBI = static_cast<PBITMAPINFO>(GlobalLock( hDIB ));
+
+ if ( pBI->bmiHeader.biSize != sizeof( BITMAPCOREHEADER ) )
+ {
+ if( pBI->bmiHeader.biBitCount <= 8 )
+ {
+ if ( pBI->bmiHeader.biClrUsed )
+ nColors = static_cast<sal_uInt16>(pBI->bmiHeader.biClrUsed);
+ else
+ nColors = 1 << pBI->bmiHeader.biBitCount;
+ }
+ }
+ else if( reinterpret_cast<PBITMAPCOREHEADER>(pBI)->bcBitCount <= 8 )
+ nColors = 1 << reinterpret_cast<PBITMAPCOREHEADER>(pBI)->bcBitCount;
+
+ GlobalUnlock( hDIB );
+ }
+
+ return nColors;
+}
+
+HGLOBAL WinSalBitmap::ImplCreateDIB(const Size& rSize, vcl::PixelFormat ePixelFormat, const BitmapPalette& rPal)
+{
+ HGLOBAL hDIB = nullptr;
+
+ if( rSize.IsEmpty() )
+ return hDIB;
+
+ const auto nBits = vcl::pixelFormatBitCount(ePixelFormat);
+
+ // calculate bitmap size in Bytes
+ const sal_uLong nAlignedWidth4Bytes = AlignedWidth4Bytes(nBits * rSize.Width());
+ const sal_uLong nImageSize = nAlignedWidth4Bytes * rSize.Height();
+ bool bOverflow = (nImageSize / nAlignedWidth4Bytes) != static_cast<sal_uLong>(rSize.Height());
+ if( bOverflow )
+ return hDIB;
+
+ // allocate bitmap memory including header and palette
+ sal_uInt16 nColors = 0;
+ if (ePixelFormat <= vcl::PixelFormat::N8_BPP)
+ nColors = vcl::numberOfColors(ePixelFormat);
+
+ const sal_uLong nHeaderSize = sizeof( BITMAPINFOHEADER ) + nColors * sizeof( RGBQUAD );
+ bOverflow = (nHeaderSize + nImageSize) < nImageSize;
+ if( bOverflow )
+ return hDIB;
+
+ hDIB = GlobalAlloc( GHND, nHeaderSize + nImageSize );
+ if( !hDIB )
+ return hDIB;
+
+ PBITMAPINFO pBI = static_cast<PBITMAPINFO>( GlobalLock( hDIB ) );
+ PBITMAPINFOHEADER pBIH = reinterpret_cast<PBITMAPINFOHEADER>( pBI );
+
+ pBIH->biSize = sizeof( BITMAPINFOHEADER );
+ pBIH->biWidth = rSize.Width();
+ pBIH->biHeight = rSize.Height();
+ pBIH->biPlanes = 1;
+ pBIH->biBitCount = nBits;
+ pBIH->biCompression = BI_RGB;
+ pBIH->biSizeImage = nImageSize;
+ pBIH->biXPelsPerMeter = 0;
+ pBIH->biYPelsPerMeter = 0;
+ pBIH->biClrUsed = 0;
+ pBIH->biClrImportant = 0;
+
+ if( nColors )
+ {
+ // copy the palette entries if any
+ const sal_uInt16 nMinCount = std::min( nColors, rPal.GetEntryCount() );
+ if( nMinCount )
+ memcpy( pBI->bmiColors, rPal.ImplGetColorBuffer(), nMinCount * sizeof(RGBQUAD) );
+ }
+
+ GlobalUnlock( hDIB );
+
+ return hDIB;
+}
+
+HANDLE WinSalBitmap::ImplCopyDIBOrDDB( HANDLE hHdl, bool bDIB )
+{
+ HANDLE hCopy = nullptr;
+
+ if ( bDIB && hHdl )
+ {
+ const sal_uLong nSize = GlobalSize( hHdl );
+
+ if ( (hCopy = GlobalAlloc( GHND, nSize )) != nullptr )
+ {
+ memcpy( GlobalLock( hCopy ), GlobalLock( hHdl ), nSize );
+
+ GlobalUnlock( hCopy );
+ GlobalUnlock( hHdl );
+ }
+ }
+ else if ( hHdl )
+ {
+ BITMAP aBmp;
+
+ // find out size of source bitmap
+ GetObjectW( hHdl, sizeof( aBmp ), &aBmp );
+
+ // create destination bitmap
+ if ( (hCopy = CreateBitmapIndirect( &aBmp )) != nullptr )
+ {
+ HDC hBmpDC = CreateCompatibleDC( nullptr );
+ HBITMAP hBmpOld = static_cast<HBITMAP>(SelectObject( hBmpDC, hHdl ));
+ HDC hCopyDC = CreateCompatibleDC( hBmpDC );
+ HBITMAP hCopyOld = static_cast<HBITMAP>(SelectObject( hCopyDC, hCopy ));
+
+ BitBlt( hCopyDC, 0, 0, aBmp.bmWidth, aBmp.bmHeight, hBmpDC, 0, 0, SRCCOPY );
+
+ SelectObject( hCopyDC, hCopyOld );
+ DeleteDC( hCopyDC );
+
+ SelectObject( hBmpDC, hBmpOld );
+ DeleteDC( hBmpDC );
+ }
+ }
+
+ return hCopy;
+}
+
+BitmapBuffer* WinSalBitmap::AcquireBuffer( BitmapAccessMode /*nMode*/ )
+{
+ std::unique_ptr<BitmapBuffer> pBuffer;
+
+ if( mhDIB )
+ {
+ PBITMAPINFO pBI = static_cast<PBITMAPINFO>(GlobalLock( mhDIB ));
+ PBITMAPINFOHEADER pBIH = &pBI->bmiHeader;
+
+ if( pBIH->biPlanes == 1 )
+ {
+ pBuffer.reset(new BitmapBuffer);
+
+ pBuffer->mnFormat = pBIH->biBitCount == 1 ? ScanlineFormat::N1BitMsbPal :
+ pBIH->biBitCount == 8 ? ScanlineFormat::N8BitPal :
+ pBIH->biBitCount == 24 ? ScanlineFormat::N24BitTcBgr :
+ pBIH->biBitCount == 32 ? ScanlineFormat::N32BitTcMask :
+ ScanlineFormat::NONE;
+
+ if( RemoveScanline( pBuffer->mnFormat ) != ScanlineFormat::NONE )
+ {
+ pBuffer->mnWidth = maSize.Width();
+ pBuffer->mnHeight = maSize.Height();
+ pBuffer->mnScanlineSize = AlignedWidth4Bytes( maSize.Width() * pBIH->biBitCount );
+ pBuffer->mnBitCount = static_cast<sal_uInt16>(pBIH->biBitCount);
+
+ if( pBuffer->mnBitCount <= 8 )
+ {
+ const sal_uInt16 nPalCount = ImplGetDIBColorCount( mhDIB );
+
+ pBuffer->maPalette.SetEntryCount( nPalCount );
+ memcpy( pBuffer->maPalette.ImplGetColorBuffer(), pBI->bmiColors, nPalCount * sizeof( RGBQUAD ) );
+ pBuffer->mpBits = reinterpret_cast<PBYTE>(pBI) + pBI->bmiHeader.biSize + nPalCount * sizeof( RGBQUAD );
+ }
+ else if( ( pBIH->biBitCount == 16 ) || ( pBIH->biBitCount == 32 ) )
+ {
+ sal_uLong nOffset = 0;
+
+ if( pBIH->biCompression == BI_BITFIELDS )
+ {
+ nOffset = 3 * sizeof( RGBQUAD );
+ ColorMaskElement aRedMask(*reinterpret_cast<UINT32*>(&pBI->bmiColors[ 0 ]));
+ aRedMask.CalcMaskShift();
+ ColorMaskElement aGreenMask(*reinterpret_cast<UINT32*>(&pBI->bmiColors[ 1 ]));
+ aGreenMask.CalcMaskShift();
+ ColorMaskElement aBlueMask(*reinterpret_cast<UINT32*>(&pBI->bmiColors[ 2 ]));
+ aBlueMask.CalcMaskShift();
+ pBuffer->maColorMask = ColorMask(aRedMask, aGreenMask, aBlueMask);
+ }
+ else if( pBIH->biBitCount == 16 )
+ {
+ ColorMaskElement aRedMask(0x00007c00UL);
+ aRedMask.CalcMaskShift();
+ ColorMaskElement aGreenMask(0x000003e0UL);
+ aGreenMask.CalcMaskShift();
+ ColorMaskElement aBlueMask(0x0000001fUL);
+ aBlueMask.CalcMaskShift();
+ pBuffer->maColorMask = ColorMask(aRedMask, aGreenMask, aBlueMask);
+ }
+ else
+ {
+ ColorMaskElement aRedMask(0x00ff0000UL);
+ aRedMask.CalcMaskShift();
+ ColorMaskElement aGreenMask(0x0000ff00UL);
+ aGreenMask.CalcMaskShift();
+ ColorMaskElement aBlueMask(0x000000ffUL);
+ aBlueMask.CalcMaskShift();
+ pBuffer->maColorMask = ColorMask(aRedMask, aGreenMask, aBlueMask);
+ }
+
+ pBuffer->mpBits = reinterpret_cast<PBYTE>(pBI) + pBI->bmiHeader.biSize + nOffset;
+ }
+ else
+ pBuffer->mpBits = reinterpret_cast<PBYTE>(pBI) + pBI->bmiHeader.biSize;
+ }
+ else
+ {
+ GlobalUnlock( mhDIB );
+ pBuffer.reset();
+ }
+ }
+ else
+ GlobalUnlock( mhDIB );
+ }
+
+ return pBuffer.release();
+}
+
+void WinSalBitmap::ReleaseBuffer( BitmapBuffer* pBuffer, BitmapAccessMode nMode )
+{
+ if( pBuffer )
+ {
+ if( mhDIB )
+ {
+ if( nMode == BitmapAccessMode::Write && !!pBuffer->maPalette )
+ {
+ PBITMAPINFO pBI = static_cast<PBITMAPINFO>(GlobalLock( mhDIB ));
+ const sal_uInt16 nCount = pBuffer->maPalette.GetEntryCount();
+ const sal_uInt16 nDIBColorCount = ImplGetDIBColorCount( mhDIB );
+ memcpy( pBI->bmiColors, pBuffer->maPalette.ImplGetColorBuffer(), std::min( nDIBColorCount, nCount ) * sizeof( RGBQUAD ) );
+ GlobalUnlock( mhDIB );
+ }
+
+ GlobalUnlock( mhDIB );
+ }
+
+ delete pBuffer;
+ }
+ if( nMode == BitmapAccessMode::Write )
+ InvalidateChecksum();
+}
+
+bool WinSalBitmap::GetSystemData( BitmapSystemData& rData )
+{
+ bool bRet = false;
+ if( mhDIB || mhDDB )
+ {
+ bRet = true;
+ rData.pDIB = mhDIB;
+ const Size& rSize = GetSize ();
+ rData.mnWidth = rSize.Width();
+ rData.mnHeight = rSize.Height();
+ }
+ return bRet;
+}
+
+bool WinSalBitmap::ScalingSupported() const
+{
+ return false;
+}
+
+bool WinSalBitmap::Scale( const double& /*rScaleX*/, const double& /*rScaleY*/, BmpScaleFlag /*nScaleFlag*/ )
+{
+ return false;
+}
+
+bool WinSalBitmap::Replace( const Color& /*rSearchColor*/, const Color& /*rReplaceColor*/, sal_uInt8 /*nTol*/ )
+{
+ return false;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */