fix(quickdraw): make indexed XOR reversible - #564
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August 13, 2026 16:40
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Closes #563.
Invert indexed CopyBits destinations at their packed pixel depth for srcXor and notSrcXor instead of mapping an RGB complement back through the destination palette. This preserves exact 2-, 4-, and 8-bit indices and makes repeated XOR drawing reversible.
Validation:
cargo fmt --checkcargo test --lib(2,950 passed, 3 ignored)cargo clippy --all-targets(passes with existing warnings)