Improve failure modes, fix DXT1 lookup in transparency mode #34
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# Conflicts: # src/map-parser.ts # src/parse-dxt.ts
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Original PR: #30
Fixes beyond-all-reason/maps-metadata#567
When processing the DXT1 lookup on each block, there is a bug in color ordering, causing them to be swapped. This caused the 2-bit pixel indices to map to wrong colors, resulting in visible artifacts. This PR also updated the RGB565 conversion to use simple bit shifting instead of bit replication, which produces smoother gradients matching the reference python implementation.
Will not require any changes in maps-metadata besides a version update
Contains AI-assisted changes:
Conflicts:
src/map-parser.ts
src/parse-dxt.ts