* feat(image): ImageData::rotate with inverse-map nearest/linear
Add CPU pixel rotation on ImageData using destination-to-source inverse
mapping (Geometric Tools / standard image processing). Supports nearest
and bilinear filters, optional canvas expand to fit the rotated AABB,
and matches Math::rotate2* angle convention. Includes unit tests, Font
script binding, and docs.
Co-authored-by: 西风逍遥游 <sunxfancy@gmail.com>
* test(image): assert exact 90° rotate pixel positions
Pin nearest+expand 90° mapping of corner markers to (1,2) and (0,0).
Co-authored-by: 西风逍遥游 <sunxfancy@gmail.com>
* feat(image): implement RotSprite pixel-art rotation filter
Add Xenowhirl RotSprite as ImageData::rotate filter "rotsprite":
Scale2x×3 with color similarity, best 8×8 sampling offset search,
nearest-neighbor rotate+downscale, and single-pixel detail restore.
Quarter turns use an exact remapping fast path. Tests cover 90°
palette preservation and 45° no-new-colors.
Co-authored-by: 西风逍遥游 <sunxfancy@gmail.com>
* fix(ci): M_PI on MSVC and GitHub API 403 for asset downloads
Windows unit tests failed because test/image.cpp used M_PI without the
MSVC fallback used by other test files. macOS build failed when
download_skinned_character.sh hit GitHub API 403 during PRE_BUILD; add
User-Agent + optional GITHUB_TOKEN auth to asset fetch scripts and pass
GITHUB_TOKEN in CI build steps.
Co-authored-by: 西风逍遥游 <sunxfancy@gmail.com>
---------
Co-authored-by: Cursor Agent <cursoragent@cursor.com>
