I think libpng was exactly the right decision. Most image software will save 
or convert to png. It's the lingua franca.

Regards,
Mike

----- Original Message ----- 
From: "Cesare Marilungo" 
To: "Developer discussions" 
Sent: Friday, January 04, 2008 6:03 PM
Subject: Re: [Cs-dev] image opcodes and dependencies


> I'm not sure anymore if using the png format (and pnglib) has been the
> right decision. I wanted to support more formats but I haven't found a
> GPL-ed cross platform library. I could have used some simple image
> format (like window bmp, or targa) and eliminate any dependency. The
> advantages of png are that it is compressed and that it supports
> multiple bit depths, alpha channels, grayscale. It is also more common
> than bitmap or targa, especially among open source users.
>
> -c.
>
> Steven Yi wrote:
>> Well, if possible could we have it just check for libpng and build if
>> found and not if not found rather than have an option?  Otherwise, I
>> guess if one really wanted to control that, I would imagine having an
>> autodetect but also a flag with default to 1 would be nice.
>>
>> On Jan 4, 2008 1:07 PM, victor  wrote:
>>
>>> The new image opcodes have brought in new dependencies (libpng); while 
>>> it
>>> seems OK to get and build libpng, I would like to see an option in scons
>>> to disable the build so that we don't require this on a base system. 
>>> Perhaps
>>> the option should default to "0" (don't build it).
>>>
>>> Victor
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>
>
> -- 
> www.cesaremarilungo.com
>
>
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