From 2a7fdf2a7bb7345c49c988dfd1fcdb41cebb8a1e Mon Sep 17 00:00:00 2001 From: Miklos Vajna Date: Mon, 7 Apr 2014 16:51:29 +0200 Subject: [PATCH] fdo#77140 embeddedobj: avoid unneeded conversion in ConvertBufferToFormat() The primary reason is not performance: on export currently we loose some EMF+ properties. While it would be good to fix all those problems one by one, this is a small fix to avoid all kind of roundtrip problems in this situation. Change-Id: If5e1c1eabd8290f36b538e374c9707ae17097786 --- embeddedobj/Library_emboleobj.mk | 1 + embeddedobj/source/msole/graphconvert.cxx | 12 ++++++++++++ 2 files changed, 13 insertions(+) diff --git a/embeddedobj/Library_emboleobj.mk b/embeddedobj/Library_emboleobj.mk index 96f03ee16ca5..e10110bab636 100644 --- a/embeddedobj/Library_emboleobj.mk +++ b/embeddedobj/Library_emboleobj.mk @@ -32,6 +32,7 @@ $(eval $(call gb_Library_use_libraries,emboleobj,\ sal \ tl \ utl \ + vcl \ $(gb_UWINAPI) \ )) diff --git a/embeddedobj/source/msole/graphconvert.cxx b/embeddedobj/source/msole/graphconvert.cxx index ad8e910c8431..37aeb6914798 100644 --- a/embeddedobj/source/msole/graphconvert.cxx +++ b/embeddedobj/source/msole/graphconvert.cxx @@ -32,6 +32,7 @@ #include #include #include +#include #include "mtnotification.hxx" #include "oleembobj.hxx" @@ -48,6 +49,17 @@ sal_Bool ConvertBufferToFormat( void* pBuf, // produces sequence with data in requested format and returns it in aResult if ( pBuf ) { + // First, in case the buffer is already in the requested format, then avoid a conversion. + SvMemoryStream aMemoryStream(pBuf, nBufSize, STREAM_READ); + GraphicFilter& rFilter = GraphicFilter::GetGraphicFilter(); + sal_uInt16 nRetFormat = 0; + if (rFilter.CanImportGraphic(OUString(), aMemoryStream, GRFILTER_FORMAT_DONTKNOW, &nRetFormat) == GRFILTER_OK && + rFilter.GetImportFormatMediaType(nRetFormat) == aMimeType) + { + aResult <<= uno::Sequence< sal_Int8 >( reinterpret_cast< const sal_Int8* >( aMemoryStream.GetData() ), aMemoryStream.Seek( STREAM_SEEK_TO_END ) ); + return sal_True; + } + uno::Sequence < sal_Int8 > aData( (sal_Int8*)pBuf, nBufSize ); uno::Reference < io::XInputStream > xIn = new comphelper::SequenceInputStream( aData ); try