[OpenIndiana-discuss] I am having problems with Inkscape and convert producing PNG's

[Bob Friesenhahn]

On Mon, 15 Oct 2012, Jonathan Adams wrote:

> it's the same message on both, I'm not sure if Inkscape is using
> "convert" to produce the file.
>
> jadams at jadlaptop:~/images$ convert Mylogo.svg /tmp/Mylogo.png
> convert: Application was compiled with png.h from libpng-1.2.44
> `/tmp/Mylogo.png' @ warning/png.c/MagickPNGWarningHandler/1781.
> convert: Application  is  running with png.c from libpng-1.4.3
> `/tmp/Mylogo.png' @ warning/png.c/MagickPNGWarningHandler/1781.
> convert: Incompatible libpng version in application and library
> `/tmp/Mylogo.png' @ warning/png.c/MagickPNGWarningHandler/1781.
> convert: memory allocation failed `/tmp/Mylogo.png' @
> error/png.c/WriteOnePNGImage/8873.
>
> jadams at jadlaptop:/sal/images$ pkg list | egrep -i "inkscape|png|magick"
> image/editor/imagemagick (sfe)                    6.7.6.10-0.151.1.5         i--
> image/editor/inkscape (sfe)                       0.48.2-0.151.1.5           i--
> image/library/g++/imagemagick (sfe)               6.7.6.10-0.151.1.5         i--
> image/library/libpng                              0.5.11-0.151.1.7           i--

SFE ImageMagick has a bug and this should be reported to the 
OpenIndiana SFE bug tracker.  The bug can be illustrated by executing 
'convert -list format' and looking at the details for PNG:

       PNG* PNG       rw-   Portable Network Graphics (libpng 1.2.44,1.4.3)
            See http://www.libpng.org/ for details about the PNG format.

What the error messages and the PNG detail information is telling us 
is that the png headers used do not match the png library used.

Bob
-- 
Bob Friesenhahn
bfriesen at simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/