Opened 12 years ago

Closed 12 years ago

Last modified 12 years ago

#3014 closed defect (fixed)

Overview support missing in some formats

Reported by: rprinceley Owned by: warmerdam
Priority: normal Milestone: 1.7.0
Component: GDAL_Raster Version: svn-trunk
Severity: normal Keywords: terragen xpm gff


Some dataset implementation do not include code to initialize the overview manager ( oOvManager.Initialize ). This makes it difficult to handle overviews in a generic manner.


  poDS->oOvManager.Initialize( poDS, poOpenInfo->pszFilename );



fixes this issue in XPM, GFF, etc.

Change History (4)

comment:1 Changed 12 years ago by warmerdam

Keywords: terragen xpm added
Milestone: 1.7.0
Resolution: fixed
Status: newclosed

I have added overview support to the XPM (r18239, r18241) and terragen (r18240) to match the changes made by rprinceley in the 1.6-esri branch (r17312,r17313). The other portions of r17312 appear to already be in trunk and were possibly back ported.

While GFF was mentioned in this ticket, and is lacking overview support, I have no test data for this format and I'm hesitant to modify the driver without the ability to test it.

comment:2 Changed 12 years ago by Even Rouault


I see I had found a sample available online. See

The public page is

comment:3 Changed 12 years ago by warmerdam

overview, pam and virtualio support added in the gff driver (r18243).

comment:4 Changed 12 years ago by warmerdam

Keywords: gff added

Sorry, actually done in (r18244).

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