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Changelog

0.3.6

This release improves end-to-end decoding peformance for PNG images by 10% on average, with select images benefitting by as much as 50%. These improvements were inspired by the algorithms in zune-inflate.

  • Optimized building the Huffman table, which helps the performance of small images (#31)
  • Dropped the specialized fast path for a hardcoded Huffman table, which is no longer necessary (#32)
  • Add a fast path to the DEFLATE decoding loop that processes more bytes at a time, benefitting performance on large images (#34)
  • Re-add test files into the crates.io tarball since they are so small. They may be removed in the future if they grow in size (#35)

0.3.5

  • Fix handling of invalid inputs, so that errors are consistently detected regardless of how the input is "chunked" when feeding it into the decompressor.
  • Add more fuzz testing.

0.3.4

  • Fix bug where Decompressor::read might fail to return an error for a truncated deflate stream if the output buffer had room for exactly one more byte of data.

0.3.3

  • Add decompress_to_vec_bounded method.

0.3.2

  • Allow decoding into buffers without extra space.

0.3.1

  • Strengthen postconditions on Decompressor::read.
  • Add more fuzz testing.

0.3.0

  • Added support for decoding arbitrary zlib streams.