Fix issues flagged by fuzz testing#607
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solidpixel merged 3 commits intomainfrom May 2, 2026
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Avoid trying to read a block mode when compression failed and returned an error block. This is uncommon in normal use, but can be triggered by random colors that are difficult to compress.
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One fuzzer issue with a missing constraint causing false positives.
One minor bug that can cause an undefined value to be read by the weight quant limiting heuristic if all one partition block trials resulted in error blocks. This limit was only used for filtering, so it could result in later searches with two or more partitions searching less of the search space than they should, causing a drop in image quality. It is unlikely to occur in real images because it is unlikely that all one partition trials result in error blocks.