Bruce Wheaton wrote:
LibPNG changed their API in January. I have a current Arch Linux install
which uses the newer version, but we can presume it will crop up more.
The only two current issues are addressed by:
/OpenSceneGraph/src/osgPlugins/png/ReaderWriterPNG.cpp
176d175
< #if PNG_LIBPNG_VER < 10004
178,180d176
< #else
< if (fin.gcount() == 8 && png_sig_cmp(header, 0, 8) == 0)
< #endif
231,232d226
< {
< #if PNG_LIBPNG_VER < 10004
234,237d227
< #else
< png_set_expand_gray_1_2_4_to_8(png);
< #endif
< }
As per the libPNG recommendations, to replace png_check_sig
and png_set_gray_1_2_4_to_8()
http://www.libpng.org/pub/png/src/libpng-1.2.x-to-1.4.x-summary.txt
If this isn't the best/place to report this, someone please let me know.
Hi Bruce -- This appears to be fixed on trunk with r11121. It's a non-invasive
change, except for I also need to add r10763 (essentially just a change to CMake
except for the PNG plugin code changes). But I have now merged r10763 and r11121
onto the 2.8 branch, so now we should have support for many versions of libPNG
(I'm using an older version) and also adds the OSG_CPP_EXCEPTIONS_AVAILABLE
CMake option.
I'll tag a release candidate shortly.
--
-Paul Martz Skew Matrix Software
http://www.skew-matrix.com/
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