Ticket #3968 (closed enhancement: fixed)
MrSID: Initialize overview manager to enable RFC 15 mask band support
|Reported by:||bclaywell||Owned by:||warmerdam|
(See gdal-dev thread here.)
The attached patch initializes the GDALDefaultOverviews manager at the end of MrSIDDataset::Open() in order to provide support for mask bands, and implements the IBuildOverviews() virtual method to print a warning that building overviews on MrSID datasets is unnecessary.