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don't use COMPRESSION_LZW by default, it's not implemented in our own libtiff (patch 1434275)

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@38779 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2006-04-17 01:54:10 +00:00
parent b26a650c10
commit f5e209857f
1 changed files with 7 additions and 1 deletions
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8
src/common/imagtiff.cpp
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@@ -393,7 +393,13 @@ bool wxTIFFHandler::SaveFile( wxImage *image, wxOutputStream& stream, bool verbo
int compression = image->GetOptionInt(wxIMAGE_OPTION_COMPRESSION);
if ( !compression )
compression=COMPRESSION_LZW;
{
// we can't use COMPRESSION_LZW because current version of libtiff
// doesn't implement it ("no longer implemented due to Unisys patent
// enforcement") and other compression methods are lossy so we
// shouldn't use them by default -- and the only remaining one is none
compression = COMPRESSION_NONE;
}
TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, spp);
TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, bpp);