third_party/libpng/TODO - Issue 2033063003: Check libpng directly into third_party/

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Issue 2033063003: Check libpng directly into third_party/ (Closed) Base URL: https://skia.googlesource.com/skia.git@master

Patch Set: public.bzl Created 4 years, 6 months ago

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	1 /*

	2 TODO - list of things to do for libpng:

	3

	4 Final bug fixes.

	5 Better C++ wrapper/full C++ implementation?

	6 Fix problem with C++ and EXTERN "C".

	7 cHRM transformation.

	8 Remove setjmp/longjmp usage in favor of returning error codes.

	9 Palette creation.

	10 Add "grayscale->palette" transformation and "palette->grayscale" detection.

	11 Improved dithering.

	12 Multi-lingual error and warning message support.

	13 Complete sRGB transformation (presently it simply uses gamma=0.45455).

	14 Make profile checking optional via a png_set_something() call.

	15 Man pages for function calls.

	16 Better documentation.

	17 Better filter selection

	18 (counting huffman bits/precompression? filter inertia? filter costs?).

	19 Histogram creation.

	20 Text conversion between different code pages (Latin-1 -> Mac and DOS).

	21 Avoid building gamma tables whenever possible.

	22 Use greater precision when changing to linear gamma for compositing against

	23 background and doing rgb-to-gray transformation.

	24 Investigate pre-incremented loop counters and other loop constructions.

	25 Add interpolated method of handling interlacing.

	26 Switch to the simpler zlib (zlib/libpng) license if legally possible.

	27 Extend pngvalid.c to validate more of the libpng transformations.

	28

	29 */

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