Fix bug 68629: Transparent artifacts when using imagerotate #17375
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seems needs an upstream fix ? |
The unintended fallthrough has already been fixed: libgd/libgd@6d21d30 The UB likely has been fixed with libgd/libgd@2b26be8. What a mess! Need to check more thoroughly. |
We port the respective upstream fix[1], which dropped the special cased implementations of fixed-point arithmetic rotation in favor of the generic implementation. [1] <libgd/libgd@bd6d2e1>
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We port the respective upstream fix[1], which dropped the special cased implementations of fixed-point arithmetic rotation in favor of the generic implementation.
[1] libgd/libgd@bd6d2e1
It's a bit unfortunate that due to the change to the
gdInterpolationMethodenum this likely has to be regarded as ABI break, and as such can only target the master branch. It's even more unfortunate, that I thought that the special case implementations had not been ported to libgd back then, when actually they just had been removed just a few months before.