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Now that the code works consistently so that these just switch off the support for having libpng do the interlace/deinterlace the old names make more sense, restoring them avoids cruft in the configuration file and avoids an unnecessary version specific change. Signed-off-by: John Bowler <jbowler@acm.org>
This demonstrates the use of PNG_USER_CONFIG, pngusr.h and pngusr.dfa to build minimal decoder, encoder, and progressive reader applications. See the individual README and pngusr.dfa files for more explanation.