Status of AGG support?

[Steve Lime]

I don't think that will be ready for 5.0 because of the blending issue I
mentioned. GD development is active again and one of the planned 
additions is a true RGBA buffer that AGG could render into with correct
blending support (and we wouldn't have to re-write any of the raster
support). Otherwise we have to use an AGG managed buffer, which
may be doable but not in time for 5.0.

Steve

>>> Paul Spencer <pspencer at DMSOLUTIONS.CA> 07/03/07 2:01 PM >>>
The other thing that I am very keen to have is text rendered/placed  
using AGG.  Not sure if it will be done for 5.0 though.

Cheers

Paul

On 3-Jul-07, at 1:25 PM, Steve Lime wrote:

> Hi Tom: AGG support is in the codebase for 5.0. I still owe an RFC  
> to explain what was
> done although the addition of AGG doesn't affect any other portions  
> of MapServer. It's
> a big user feature though. I recently got a big time sink off my  
> plate and will work that up
> ASAP.
>
> The support is relatively complete. The guys from DM Solutions can  
> probably comment
> further as they've been using it the most. The AGG vs. GD images DM  
> has supplied are
> very nice. The quality difference is noticeable with roads in  
> particular.
>
> The only missing capability that I am aware of has to do with  
> PIXMAP symbols that contain
> an alpha channel. There is a fundamental difference in how AGG and  
> GD handle alpha
> blending (GD is flat out backwards).  We use GD to manage the pixel  
> buffer that AGG is
> rendering into so that becomes a problem. I'll go into options in  
> the RFC.
>
> Anyway, other than that the support seems to be working nicely is  
> worth trying.
>
> Steve
>
>>>> On 7/1/2007 at 10:08 PM, in message
> <7b5b710d0707012008i59c41e8bq8e0ef4d8022f40f8 at mail.gmail.com>, Tom  
> Beard
> <tom at PROJECTX.CO.NZ> wrote:
>> Hi there,
>>
>> This is my first time posting here, and I hope this is the right  
>> forum to
>> ask this question.
>>
>> I was wondering what the status of AGG support was for the 5.0  
>> release. On
>> searching the archives, the most recent reference I could find was  
>> the
>> minutes from the May 22 IRC meeting that said that there would be  
>> an RFC
>> freeze on June 15, and that an RFC for AGG was "forthcoming". Did AGG
>> support make it into that freeze? Is it listed somewhere online?
>>
>> I'd also be interested to know if there is a version currently in  
>> Subversion
>> that includes AGG sub-pixel rendering and that works well enough  
>> to have a
>> go at compiling on Windows.
>>
>> Regards,
>>             Tom Beard

+-----------------------------------------------------------------+
|Paul Spencer                          pspencer at dmsolutions.ca    |
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|Chief Technology Officer                                         |
|DM Solutions Group Inc                http://www.dmsolutions.ca/ |
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