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- pngchange.txt - changes for pnglib
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- version 0.2
- added reader into png.h
- fixed small problems in stub file
- version 0.3
- added pull reader
- split up pngwrite.c to several files
- added pnglib.txt
- added example.c
- cleaned up writer, adding a few new tranformations
- fixed some bugs in writer
- interfaced with zlib 0.5
- added K&R support
- added check for 64 KB blocks for 16 bit machines
- version 0.4
- cleaned up code and commented code
- simplified time handling into png_time
- created png_color_16 and png_color_8 to handle color needs
- cleaned up color type defines
- fixed various bugs
- made various names more consistant
- interfaced with zlib 0.71
- cleaned up zTXt reader and writer (using zlib's Reset functions)
- split transformations into pngrtran.c and pngwtran.c
- version 0.5
- interfaced with zlib 0.8
- fixed many reading and writing bugs
- saved using 3 spaces instead of tabs
- version 0.6
- added png_large_malloc() and png_large_free()
- added png_size_t
- cleaned up some compiler warnings
- added png_start_read_image()
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