525ece8465
Speedup IMB_rotate_orthogonal (used for example in auto-rotating videos that were shot sideways on a phone) by: 1) not copying previous pixel values into new result, only for them to be immediately overwritten by rotated pixels, and 2) using multi-threading. Performing rotation of 1920x1080 resolution HDR (float) video frame goes from 20ms down to 5ms (Ryzen 5950X, Windows) Pull Request: https://projects.blender.org/blender/blender/pulls/135158