Brandon DeRosier 9d1159855f [Impeller] Add CPU implementations for all color filters (flutter/engine#42692)
Part of https://github.com/flutter/flutter/issues/127232.

Adds a CPU implementation for ColorMatrix and the color space
conversions. Also changes the blend signature for consistency.

These will be necessary to make the mask blur fast path continue working
in the presence of color filters. In general, we can use these to
eliminate a needlessly expensive image-based color filter for the
non-image color sources.
2023-06-09 11:13:05 -07:00
..