svgfilters
svgfilters provides low-level SVG filters
implementation.
svgfilters doesn't implement the whole filters workflow, just operations on raster images.
Filter region calculation, image colors (un)premultiplication, input validation,
filter primitives order, transformations, etc. should be implemented by the caller.
Implemented filters
- feColorMatrix
- feComponentTransfer
- feComposite Only the arithmetic operator is supported since other one are pretty common and should be implemented by the 2D library itself.
- feConvolveMatrix
- feDiffuseLighting
- feDisplacementMap
- feGaussianBlur Box blur and IIR blur variants are available.
- feMorphology
- feSpecularLighting
- feTurbulence
Unimplemented filters
- feFlood, because it's just a simple fill.
- feImage, because it can be implemented only by a caller.
- feTile, because it's basically a fill with pattern.
- feMerge, because it's just a layer compositing and a 2D library will be faster.
- feOffset, because it's just a layer compositing with offset.
Performance
The library isn't well optimized yet, but it's mostly allocation free. Some methods will allocate necessary, temporary buffers which will be reflected in the documentation. But majority of methods will work on provided buffers.
License
svgfilters is licensed under the MPLv2.0.