Merge branch 'refs/heads/master' into C-buffers
Add ISPC compiled gamma-to-linear and linear-to-gamma ops
Use optimized gamma ops
TODO: fuse CS conversions for ISPC too
Cleanup globals
Add ISPC optimized matrix multiplications for XYZtoLRGB and LRGBtoXYZ
Combine XYZ and gamma transforms into one ISPC optimized function
Merge branch 'refs/heads/C-buffers'
Optimize CS transform function using ISPC