Hi everybody, I've been working on writing an image viewer using GDAL, and I'd like to take advantage of the block cache to avoid keeping multiple copies of things in memory where I can. I'm currently using the GetLockedBlockRef() function, which works well, but can sometimes lead to large delays when scrolling around and reading in new data. Is there any easy way to check to see if a particular block is present in the cache before trying to read it? I've found the TryGetLockedBlockRef() function, which I could use to read the data from the cache, note which blocks are not valid, and go back and read those blocks in idle time or in a separate thread, but it's protected and I don't really want to mess with the GDAL class hierarchy if I don't have to. Is there a straightforward way to do this?
Thanks, Luke _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
