[NTG-pdftex] writepng problem?

Akira Kakuto kakuto at fsci.fuk.kindai.ac.jp
Mon Nov 1 06:19:57 CET 2004


On windows (1.20b-beta, libpng-1.2.7),
????4a??.png were ng and ????6a??.png were ok:

> here it seems that pdftex currently crashes on Willem van Schaik PNG
> test files
> 
> basn4a08.png 8 bit grayscale + 8 bit alpha-channel
> basn4a16.png 16 bit grayscale + 16 bit alpha-channel

ng

> basn6a08.png 3x8 bits rgb color + 8 bit alpha-channel
> basn6a16.png 3x16 bits rgb color + 16 bit alpha-channel
> bgan6a08.png 3x8 bits rgb color, alpha, no background chunk
> bgan6a16.png 3x16 bits rgb color, alpha, no background chunk

ok

> bgbn4a08.png 8 bit grayscale, alpha, black background chunk
> bggn4a16.png 16 bit grayscale, alpha, gray background chunk

ng

> bgwn6a08.png 3x8 bits rgb color, alpha, white background chunk
> bgyn6a16.png 3x16 bits rgb color, alpha, yellow background chunk

ok

-- 
Akira Kakuto


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