496cdb3073
Reset reduce_to_gray and it_is_opaque flags prior to processing each image. Enable removal of safe-to-copy chunks that are being handled as unknown Added 262 to the length of uncompressed data when calculating required_window_size, to account for zlib/deflate implementation. Added "-bit_depth n" to the help screen. Call png_set_packing() when increasing bit_depth to 2 or 4. Added warning about not overwriting an existing tRNS chunk. Reduced the memory usage Write 500K IDAT chunks even when system libpng is being used. Ignore all-zero gAMA and cHRM chunks, with a warning. Added "-loco" option (writes MNG files with filter_method 64) "-dir" and "-ext" options are no longer mutually exclusive, e.g.: pngcrush -loco -dir Crushed -ext .mng *.png Added "-iccp" option Increased the zlib memory level to 9, which improves compression Enabled the "-max max_idat_size" option, even when max_idat_size exceeds the default 1/2 megabyte size. Added missing "png_ptr" argument to png_error() call Revised the "-help" output slightly and improved the "-version" output. The "-already[_crushed]" option is now ignored if the "-force" option is present or if chunks are being added, deleted, or modified. Improved "things_have_changed" behavior (now, when set in a particular file, it is not set for all remaining files) |
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