...as seen at least with --disable-optimized against recent GCC 16 trunk, > filter/source/msfilter/msdffimp.cxx:5810:24: error: ‘<unknown>’ may be used uninitialized [-Werror=maybe-uninitialized] > 5810 | mbSkipImages(false) > | ^ > filter/source/msfilter/msdffimp.cxx:239:1: note: by argument 2 of type ‘const SvxMSDffManager&’ to ‘DffPropertyReader::DffPropertyReader(const SvxMSDffManager&)’ declared here > 239 | DffPropertyReader::DffPropertyReader( const SvxMSDffManager& rMan ) > | ^~~~~~~~~~~~~~~~~ > filter/source/msfilter/msdffimp.cxx: In constructor ‘SvxMSDffManager::SvxMSDffManager(SvStream&, rtl::OUString, sal_uInt32, SvStream*, SdrModel*, tools::Long, Color, SvStream*, bool)’: > filter/source/msfilter/msdffimp.cxx:5769:31: error: ‘<unknown>’ may be used uninitialized [-Werror=maybe-uninitialized] > 5769 | mbSkipImages (bSkipImages) > | ^ > filter/source/msfilter/msdffimp.cxx:239:1: note: by argument 2 of type ‘const SvxMSDffManager&’ to ‘DffPropertyReader::DffPropertyReader(const SvxMSDffManager&)’ declared here > 239 | DffPropertyReader::DffPropertyReader( const SvxMSDffManager& rMan ) > | ^~~~~~~~~~~~~~~~~ Change-Id: Ib1cb233e0208c8316db399c369a4879bca5b31eb Reviewed-on: https://gerrit.libreoffice.org/c/core/+/193058 Tested-by: Jenkins Reviewed-by: Stephan Bergmann <stephan.bergmann@collabora.com>
LibreOffice Filters
Filter registration and some simple filters (also descriptions).
Desperate splitting of code into small shared libraries for historical
reasons presumably (OS/2 and Windows 3.x). The libraries produced from
the code in each subdirectory of filter/source/graphicfilter are
graphic format import or export filters. But they don't have uniform
API. Some have either a GraphicImport or GraphicExport entry point,
and are loaded and used in a uniform fashion from code in
svtools/source/filter/filter.cxx. Others have different API and are
loaded from other places. For instance icgm has ImportCGM, and is
loaded and used by sd/source/filter/cgm/sdcgmfilter.cxx (!).
Svgreader is used for "File -> Open" and then to choose the svg file.
For "Insert -> Picture -> From File", see svgio/source/svgreader directory.
Filter Configuration
The filter configuration consists of two parts, the type definition in
filter/source/config/fragments/types/ and the actual filter definition
in filter/source/config/fragments/filters/.
Each file type e.g. text file should be represented by exactly one type definition. This type can then be referenced by several different filters, e.g. calc text, writer text.