Re: windowscodecs questions.

2012-10-24 Thread Max TenEyck Woodbury
On 10/24/2012 02:18 PM, Vincent Povirk wrote: >> I found some code that reads a generic chunk. I see where the size >> and type are read, where a correctly sized record is allocated and >> where the data is read into the record. > > That code is unused for reading and writing PNG images right

Re: windowscodecs questions.

2012-10-24 Thread Vincent Povirk
> I found some code that reads a generic chunk. I see where the size > and type are read, where a correctly sized record is allocated and > where the data is read into the record. That code is unused for reading and writing PNG images right now, sorry for the confusion. Libpng has its own code

windowscodecs questions.

2012-10-24 Thread Max TenEyck Woodbury
Background: I am trying to improve the performance/reliability of GuildWars2 under wine. In particular, PNG handling seems very slow, so I am looking at windowscodecs and I seem to be misunderstanding some things. I have read the PNG spec. First: The CRC check. The spec says that a 'chunk' c