Bring back 1 bit rendering
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Key: GEOS-1312
URL: http://jira.codehaus.org/browse/GEOS-1312
Project: GeoServer
Issue Type: Improvement
Components: WMS
Affects Versions: 1.6.0-beta2
Reporter: Andrea Aime
Assignee: Simone Giannecchini
Fix For: 1.6.0
Attachments: wms-broken.png, wms-good.png
During the speedup week we did bring in 1 bit rendering, that is, the ability to render a two colors map over an image whose raster uses just 1 bit per pixel.
This provides significant speedup and reduced image size, but unfortunately single pixel wide line rendering is totally broken... I've tried out all rendering hints trying to get better quality with no avail.
The only solution found is to have the rendering chain work against a 1byte per pixel image, that is, an interleaved raster. This unfortunately slows down rendering and increases the image size a lot.
See attached samples for both quality and size.
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