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120505d880
The APNG patch for v1.6.47 isn't out yet, so I hacked in some changes to get the APNG code to build in pngrutil.c. In particular, the PNGv3 chromacity changes also modified pngrutil.c to use table-based dispatch instead of an if/else. png_read_frame_head() doesn't use this yet, so the APNG functions in pngrutil.c haven't been marked static yet, but they do now return png_handle_result_code. TODO: Rebase using the APNG patch once it's rebased for v1.6.47. NOTE: PNGv3 apparently makes APNG part of the specification, so libpng "should" gain built-in support for APNG without a patch at some point.
23 lines
950 B
Plaintext
Vendored
23 lines
950 B
Plaintext
Vendored
TODO list for libpng
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* Fix all defects (duh!)
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* cHRM transformation.
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* Palette creation.
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* "grayscale->palette" transformation and "palette->grayscale" detection.
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* Improved dithering.
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* Multi-lingual error and warning message support.
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* Complete sRGB transformation. (Currently it simply uses gamma=0.45455.)
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* Man pages for function calls.
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* Better documentation.
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* Better filter selection
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(e.g., counting huffman bits/precompression; filter inertia; filter costs).
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* Histogram creation.
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* Text conversion between different code pages (e.g., Latin-1 to Mac).
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* Avoid building gamma tables whenever possible.
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* Greater precision in changing to linear gamma for compositing against
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background, and in doing rgb-to-gray transformations.
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* Investigate pre-incremented loop counters and other loop constructions.
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* Interpolated method of handling interlacing.
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* More validations for libpng transformations.
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