A grey square in the centre of the source must come out square: a
16x16 source at 100x60, a 10x10 one at 100x35 and a 64x64 one at
300x100, and each turned on its side. The square's width and height
are measured where its blurred edges cross the grey halfway between
the square's and the background's, read to a fraction of a pixel.
Model: opus-5-5
Without the fix, the 8192x64 and 64x8192 cases each made libvips ask for
about 24 GiB, so a return of the bug would take the build host's memory
instead of failing the test. The cases left fail at once without the fix.
Model: opus-5-5
An 8192x1 source at 1x8192, or the same turned on its side, has a centre
with the requested proportions 1/8192 of a pixel wide. The crop must keep
at least one pixel of it, or the request fails. The test's cases are now
named by source and requested size.
Model: opus-5-5
An 8192x64 or 8192x1 source, or one turned on its side, requested at
8192x8192 with fit=cover must be served at that size, and fit=cover must
keep the centre of an ordinary source.
Model: opus-5-5
sneak