update changelog after #1955

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Dane Springmeyer 2013-07-19 01:20:57 -04:00
parent a141c5c27d
commit 1653229ffd

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@ -8,6 +8,8 @@ For a complete change history, see the git log.
## Future
- Added `webp` image encoding and decoding support (#1955)
- Added `premultiplied` property on mapnik::image_32 / mapnik.Image to enable knowledge of premultiplied status of image buffer.
- Added `scale-hsla` image-filter that allows scaling colors in HSL color space. RGB is converted to HSL (hue-saturation-lightness) and then each value (and the original alpha value) is stretched based on the specified scaling values. An example syntax is `scale-hsla(0,1,0,1,0,1,0,1)` which means no change because the full range will be kept (0 for lowest, 1 for highest). Other examples are: 1) `scale-hsla(0,0,0,1,0,1,0,1)` which would force all colors to be red in hue in the same way `scale-hsla(1,1,0,1,0,1,0,1)` would, 2) `scale-hsla(0,1,1,1,0,1,0,1)` which would cause all colors to become fully saturated, 3) `scale-hsla(0,1,1,1,0,1,.5,1)` which would force no colors to be any more transparent than half, and 4) `scale-hsla(0,1,1,1,0,1,0,.5)` which would force all colors to be at least half transparent. (#1954)