How do the pieces of Android's (2D) Canvas drawing pipeline fit together?

Question

I would like to have a better understanding of how the components of Android\'s (2D) Canvas drawing pipeline fit together.

For example, how do XferMode, Shader, Mask

Answer 1

SkPathEffect - modifications to the geometry (path) before it generates an alpha mask (e.g. dashing) SkRasterizer - composing custom mask layers (e.g. shadows) SkMaskFilter - modifications to the alpha mask before it is colorized and drawn (e.g. blur) SkShader - e.g. gradients (linear, radial, sweep), bitmap patterns (clamp, repeat, mirror) SkColorFilter - modify the source color(s) before applying the xfermode (e.g. color matrix) SkXfermode - e.g. porter-duff transfermodes, blend modes

http://imgur.com/0X5Yqod