tdf#93532 - Switching to 64-bit checksum

Added a C++ and a GLSL implementation of a 64-bit CRC algorithm.

Changed hardcoded checksum value in ooxmlimport unit test (testN777345).

Change-Id: I16bb985a14866775efda49e21fe033ff64645896
Reviewed-on: https://gerrit.libreoffice.org/18254
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>

7 files changed, 23 insertions, 21 deletions

diff --git a/filter/source/flash/swfexporter.cxx b/filter/source/flash/swfexporter.cxx
index f7e5250102de..b9bd58dd39c0 100644
--- a/filter/source/flash/swfexporter.cxx
+++ b/filter/source/flash/swfexporter.cxx
@@ -431,8 +431,8 @@ sal_uInt16 FlashExporter::exportDrawPageBackground(sal_uInt16 nPage, Reference<
     getMetaFile( xCompMaster, aMtfMaster, true );
     getMetaFile( xComponent, aMtfPrivate, true );
 
-    sal_uInt32 masterchecksum = aMtfMaster.GetChecksum();
-    sal_uInt32 privatechecksum = aMtfPrivate.GetChecksum();
+    BitmapChecksum masterchecksum = aMtfMaster.GetChecksum();
+    BitmapChecksum privatechecksum = aMtfPrivate.GetChecksum();
 
     // AS: If the slide has its own background
     if (privatechecksum)
@@ -484,7 +484,7 @@ sal_uInt16 FlashExporter::exportMasterPageObjects(sal_uInt16 nPage, Reference< X
 {
     Reference< XShapes > xShapes( xMasterPage, UNO_QUERY );
 
-    sal_uInt32 shapesum = ActionSummer(xShapes);
+    BitmapChecksum shapesum = ActionSummer(xShapes);
 
     ChecksumCache::iterator it = gObjectCache.find(shapesum);
 
@@ -631,7 +631,7 @@ void FlashExporter::exportShape( const Reference< XShape >& xShape, bool bMaster
                 getMetaFile( xComponent, aMtf, false, true );
 
             sal_uInt16 nID;
-            sal_uInt32 checksum = aMtf.GetChecksum();
+            BitmapChecksum checksum = aMtf.GetChecksum();
 
             ChecksumCache::iterator it = gMetafileCache.find(checksum);
 
@@ -748,7 +748,7 @@ bool FlashExporter::getMetaFile( Reference< XComponent >&xComponent, GDIMetaFile
     return rMtf.GetActionSize() != 0;
 }
 
-sal_uInt32 FlashExporter::ActionSummer(Reference< XShape >& xShape)
+BitmapChecksum FlashExporter::ActionSummer(Reference< XShape >& xShape)
 {
     Reference< XShapes > xShapes( xShape, UNO_QUERY );
 
@@ -767,10 +767,10 @@ sal_uInt32 FlashExporter::ActionSummer(Reference< XShape >& xShape)
     }
 }
 
-sal_uInt32 FlashExporter::ActionSummer(Reference< XShapes >& xShapes)
+BitmapChecksum FlashExporter::ActionSummer(Reference< XShapes >& xShapes)
 {
     sal_uInt32 nShapeCount = xShapes->getCount();
-    sal_uInt32 shapecount = 0;
+    BitmapChecksum shapecount = 0;
 
     Reference< XShape > xShape2;
 
diff --git a/filter/source/flash/swfexporter.hxx b/filter/source/flash/swfexporter.hxx
index 2e78abdf7031..bfad3eecac4f 100644
--- a/filter/source/flash/swfexporter.hxx
+++ b/filter/source/flash/swfexporter.hxx
@@ -29,11 +29,12 @@
 #include <com/sun/star/presentation/ClickAction.hpp>
 #include <com/sun/star/presentation/FadeEffect.hpp>
 #include <osl/file.hxx>
+#include <vcl/checksum.hxx>
 
 #include <vector>
 #include <map>
 
-typedef ::std::map<sal_uInt32, sal_uInt16> ChecksumCache;
+typedef ::std::map<BitmapChecksum, sal_uInt16> ChecksumCache;
 
 class GDIMetaFile;
 
@@ -185,8 +186,8 @@ private:
     void exportShapes( const ::com::sun::star::uno::Reference< ::com::sun::star::drawing::XShapes >& xShapes, bool bStream, bool bMaster );
     void exportShape( const ::com::sun::star::uno::Reference< ::com::sun::star::drawing::XShape >& xShape, bool bMaster);
 
-    sal_uInt32 ActionSummer(::com::sun::star::uno::Reference< ::com::sun::star::drawing::XShape >& xShape);
-    sal_uInt32 ActionSummer(::com::sun::star::uno::Reference< ::com::sun::star::drawing::XShapes >& xShapes);
+    BitmapChecksum ActionSummer(::com::sun::star::uno::Reference< ::com::sun::star::drawing::XShape >& xShape);
+    BitmapChecksum ActionSummer(::com::sun::star::uno::Reference< ::com::sun::star::drawing::XShapes >& xShapes);
 
     void animateShape( ShapeAnimationInfo& rAnimInfo );
     void animatePage( PageInfo* pPageInfo );
diff --git a/filter/source/flash/swfwriter.hxx b/filter/source/flash/swfwriter.hxx
index be08fb2fab43..215777bfef26 100644
--- a/filter/source/flash/swfwriter.hxx
+++ b/filter/source/flash/swfwriter.hxx
@@ -23,6 +23,7 @@
 #include <com/sun/star/uno/Sequence.hxx>
 #include <com/sun/star/io/XOutputStream.hpp>
 #include <com/sun/star/i18n/XBreakIterator.hpp>
+#include <vcl/checksum.hxx>
 #include <vcl/font.hxx>
 #include <vcl/gradient.hxx>
 #include <vcl/vclptr.hxx>
@@ -106,7 +107,7 @@ sal_uInt32 getFixed( double fValue );
 
 
 
-typedef ::std::map<sal_uInt32, sal_uInt16> ChecksumCache;
+typedef ::std::map<BitmapChecksum, sal_uInt16> ChecksumCache;
 
 /** unsigned int 16 compare operation for stl */
 struct ltuint16
diff --git a/filter/source/flash/swfwriter1.cxx b/filter/source/flash/swfwriter1.cxx
index 1ffdd486c003..e901529ce8ab 100644
--- a/filter/source/flash/swfwriter1.cxx
+++ b/filter/source/flash/swfwriter1.cxx
@@ -787,7 +787,7 @@ void getBitmapData( const BitmapEx& aBmpEx, sal_uInt8*& tgadata, sal_uInt8*& tga
 
 sal_uInt16 Writer::defineBitmap( const BitmapEx &bmpSource, sal_Int32 nJPEGQualityLevel )
 {
-    sal_uLong bmpChecksum = bmpSource.GetChecksum();
+    BitmapChecksum bmpChecksum = bmpSource.GetChecksum();
 
     ChecksumCache::iterator it = mBitmapCache.find(bmpChecksum);
 
diff --git a/filter/source/svg/svgexport.cxx b/filter/source/svg/svgexport.cxx
index a697793e5473..794c71342091 100644
--- a/filter/source/svg/svgexport.cxx
+++ b/filter/source/svg/svgexport.cxx
@@ -422,9 +422,9 @@ bool ObjectRepresentation::operator==( const ObjectRepresentation& rPresentation
 
 
 
-sal_uLong GetBitmapChecksum( const MetaAction* pAction )
+BitmapChecksum GetBitmapChecksum( const MetaAction* pAction )
 {
-    sal_uLong nChecksum = 0;
+    BitmapChecksum nChecksum = 0;
     const MetaActionType nType = pAction->GetType();
 
     switch( nType )
@@ -506,8 +506,8 @@ bool EqualityBitmap::operator()( const ObjectRepresentation& rObjRep1,
     const GDIMetaFile& aMtf2 = rObjRep2.GetRepresentation();
     if( aMtf1.GetActionSize() == 1 && aMtf2.GetActionSize() == 1 )
     {
-        sal_uLong nChecksum1 = GetBitmapChecksum( aMtf1.GetAction( 0 ) );
-        sal_uLong nChecksum2 = GetBitmapChecksum( aMtf2.GetAction( 0 ) );
+        BitmapChecksum nChecksum1 = GetBitmapChecksum( aMtf1.GetAction( 0 ) );
+        BitmapChecksum nChecksum2 = GetBitmapChecksum( aMtf2.GetAction( 0 ) );
         return ( nChecksum1 == nChecksum2 );
     }
     else
@@ -1301,7 +1301,7 @@ bool SVGFilter::implExportTextEmbeddedBitmaps()
             MetaAction* pAction = aMtf.GetAction( 0 );
             if( pAction )
             {
-                sal_uLong nId = GetBitmapChecksum( pAction );
+                BitmapChecksum nId = GetBitmapChecksum( pAction );
                 sId = "bitmap(" + OUString::number( nId ) + ")";
                 mpSVGExport->AddAttribute( XML_NAMESPACE_NONE, "id", sId );
 
diff --git a/filter/source/svg/svgwriter.cxx b/filter/source/svg/svgwriter.cxx
index 56c5f76199e3..98e8484ff5c1 100644
--- a/filter/source/svg/svgwriter.cxx
+++ b/filter/source/svg/svgwriter.cxx
@@ -1361,7 +1361,7 @@ void SVGTextWriter::writeBitmapPlaceholder( const MetaBitmapActionType* pAction
     }
 
     // bitmap placeholder element
-    sal_uLong nId = SVGActionWriter::GetChecksum( pAction );
+    BitmapChecksum nId = SVGActionWriter::GetChecksum( pAction );
     OUString sId = "bitmap-placeholder("  + msShapeId + "." +
                    OUString::number( nId ) + ")";
 
@@ -1383,7 +1383,7 @@ void SVGTextWriter::implWriteEmbeddedBitmaps()
         const GDIMetaFile& rMtf = *mpTextEmbeddedBitmapMtf;
 
         OUString sId, sRefId;
-        sal_uLong nId, nChecksum = 0;
+        BitmapChecksum nId, nChecksum = 0;
         Point aPt;
         Size  aSz;
         sal_uLong nCount = rMtf.GetActionSize();
@@ -1781,7 +1781,7 @@ OUString SVGActionWriter::GetPathString( const tools::PolyPolygon& rPolyPoly, bo
      return aPathData;
 }
 
-sal_uLong SVGActionWriter::GetChecksum( const MetaAction* pAction )
+BitmapChecksum SVGActionWriter::GetChecksum( const MetaAction* pAction )
 {
     GDIMetaFile aMtf;
     MetaAction* pA = const_cast<MetaAction*>(pAction);
diff --git a/filter/source/svg/svgwriter.hxx b/filter/source/svg/svgwriter.hxx
index 42efe63add03..c99e4cbbd6b0 100644
--- a/filter/source/svg/svgwriter.hxx
+++ b/filter/source/svg/svgwriter.hxx
@@ -371,7 +371,7 @@ private:
 public:
 
     static OUString  GetPathString( const tools::PolyPolygon& rPolyPoly, bool bLine );
-    static sal_uLong        GetChecksum( const MetaAction* pAction );
+    static BitmapChecksum GetChecksum( const MetaAction* pAction );
 
 public: