isVolatile

Specifies whether Path is volatile; whether it will be altered or discarded by the caller after it is drawn. Path by default have volatile set false, allowing SkBaseDevice to attach a cache of data which speeds repeated drawing.

Mark temporary paths, discarded or modified after use, as volatile to inform SkBaseDevice that the path need not be cached.

Mark animating Path volatile to improve performance. Mark unchanging Path non-volatile to improve repeated rendering.

raster surface Path draws are affected by volatile for some shadows. GPU surface Path draws are affected by volatile for some shadows and concave geometries.

Returns true if the path is volatile; it will not be altered or discarded by the caller after it is drawn. Path by default have volatile set false, allowing Surface to attach a cache of data which speeds repeated drawing. If true, Surface may not speed repeated drawing.