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Simon Hull
8147d33f56
With image mips on (the canvas, navigator and layer thumbnails), an image was colorized, separated into the frame's ink plane and shown through Separations Preview's plates at its full size, and only then shrunk to the mip drawn. The 141-megapixel image of #4155 made 1.6 GB of planes a frame, more than the image store holds, so every frame made them again. The mip is now picked first and everything else is made from it, under the keys `kept_mip` and `nearest_kept` already look up. A CMYK image's own inks are halved with its pixels (`ink::key_inks`, `images::half_inks`), so it still paints them rather than inks separated from its displayed colours. Colour bitmap glyphs follow the same order. On that file the app's first frame went from 9.2 s to 1.6 s and the sharp frame after a pan from 3.9 s to 8 ms (M3 Pro, one run each). Fine detail now shows its true average: 1-pixel black and white lines show mid grey, where separating first showed them 44 levels darker.