Gradients in v7

[snibgo]

v7 generates gradients with pixel values greater than 100%.

For example, with a Cygwin-compiled Q32 HDRI:

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%IM7DEV%magick -size 1x10 xc: -sparse-color bilinear "0,0,black 0,9,white" -precision 20 txt:

The final pixel is:

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0,9: (4294967296,4294967296,4294967296)  #FFFFFFFFFFFFFFFFFFFFFFFF  srgb(100.00000002328306437%,100.00000002328306437%,100.00000002328306437%)

100.00000002328306437% of 2^32 is (2^32 + 1). The values should be (2^32). IM v6.9.0-0 gives the correct values.

[magick]

Thanks for the problem report. We can reproduce it and will have a patch to fix it in GIT master branch @ https://github.com/ImageMagick/ImageMagick later today. The patch will be available in the beta releases of ImageMagick @ http://www.imagemagick.org/download/beta/ by sometime tomorrow.