[cairo] 32k limit with image surface?

[Ian Britten]

Bill Spitzak wrote:
> I beg to differ. Tiled TIFF files are a pita to deal with when reading 
> them in. They pretty much require the entire image to be read into 
> memory before any can be accessed.

I believe this is our experience/impression too, and why we want to
avoid them (Unfortunately, our main TIFF guru is away this week...)

[ snip ]
> Also use PNG as libpng is about a dozen times faster and easier to use 
> than libtiff.

Unfortunately, this isn't an option for us.  We're actually using
GeoTIFF - A georeferenced TIFF file widely used in GIS - in this case.
Even if there is some sort of georeferenced PNG, many customers
workflows/data are already based on GeoTIFF (And other georeferenced
image formats), so we have to produce/support them.

Ian