(HG3): fix img_jpg RGB swapping and img_al null-terminator check. #478
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* `"img_jpg"` tag format unpack operation was swapping RGB -> BGR when already in BGR format. * `"img_al"` tag name had two null-terminator checks. And apparently CatSystem 2 does not guarantee anything after the first null-terminator in a fixed-length string *(yikes)*. This can be observed with a few assets in the `cs2_full_v301` toolset, like `be01S_0000001.hg3`: `69 6D 67 5F 61 6C 00 B5` : `"img_al.5"`
trigger-segfault
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Multiple corrections to
img_jpgunpacking in HG-3 images.Changes
"img_jpg"tag format unpack operation was swapping RGB -> BGR when already in BGR format."img_al"tag name had two null-terminator checks. And apparently... CatSystem 2 does not guarantee anything after the first null-terminator in a fixed-length string (yikes). This can be observed with a few assets in thecs2_full_v301toolset:69 6D 67 5F 61 6C 00 B5:"img_al.5""img_altags will have a clean two null bytes in the tag name, this seems to only be an infrequent issue.