v0.7.0-rc3

This release is funded by NLNet!

This is a release candidate, the API may change for the stable release!

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• Documentation

New

• Encode support with interlacing for all bit depths and color types

• Progressive image encoding

• Encode to a stream, file or buffer managed by the library

• Low overhead adaptive filtering, custom filter selection

• Chunk write support for all standard chunks including oFFs and eXIf extensions, unknown chunks

• ARM NEON decoder optimizations (since v0.7.0-rc2)

• Added spng_get_png_buffer(), this function returns the encoded PNG buffer if no output stream or file is set.

• Added functions for configuring the encoder, decoder: spng_set_option(), spng_get_option()

• Added location field to struct spng_unknown_chunk, this specifies the relative location of the chunk (new since v0.7.0-rc1)

• Added spng_get_gama_int(), spng_set_gama_int()

• Added spng_encode_chunks()

Changes

• Unknown chunks are now ignored by default, this can be configured with spng_set_option().

Fixes

• bKGD, tRNS chunk high bits are now preserved

Improved

• Expanded testsuite to verify chunk data, encoding of PNG's against libpng