X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/0272a10d2e6d5323422c4c8600fe47ccac0df182..931d6a47c32a5b4c283243cb553ce71ee2b535d5:/src/png/TODO?ds=sidebyside diff --git a/src/png/TODO b/src/png/TODO index a5f639577d..6e1f028bd7 100644 --- a/src/png/TODO +++ b/src/png/TODO @@ -1,12 +1,11 @@ +/* TODO - list of things to do for libpng: Final bug fixes. -Improve API by hiding the png_struct and png_info structs. -Finish work on the no-floating-point version (including gamma compensation) Better C++ wrapper/full C++ implementation? Fix problem with C++ and EXTERN "C". cHRM transformation. -Improve setjmp/longjmp usage or remove it in favor of returning error codes. +Remove setjmp/longjmp usage in favor of returning error codes. Add "grayscale->palette" transformation and "palette->grayscale" detection. Improved dithering. Multi-lingual error and warning message support. @@ -17,8 +16,12 @@ Better filter selection (counting huffman bits/precompression? filter inertia? filter costs?). Histogram creation. Text conversion between different code pages (Latin-1 -> Mac and DOS). -Should we always malloc 2^bit_depth PLTE/tRNS/hIST entries for safety? -Build gamma tables using fixed point (and do away with floating point entirely). +Avoid building gamma tables whenever possible. Use greater precision when changing to linear gamma for compositing against background and doing rgb-to-gray transformation. Investigate pre-incremented loop counters and other loop constructions. +Add interpolated method of handling interlacing. +Switch to the simpler zlib (zlib/libpng) license if legally possible. +Extend pngvalid.c to validate more of the libpng transformations. + +*/