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Rasterise SVG with go-gfx/oksvg: clipPath, multi-set arcs - #298
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…al parameter sets The import and the requirement change from srwiley/oksvg (unmaintained since 2022, no clipPath) to its fleet fork go-gfx/oksvg, which adds clipPath and fixes arc commands with several parameter sets. No engine logic changes. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Switches the SVG rasteriser from
srwiley/oksvg(last commit 2022-10-11, noclipPath) to its fleet fork go-gfx/oksvg v0.1.0, which implementsclipPath(go-gfx/oksvg#2) and fixes arc commands with several parameter sets (twemoji's 🪇 was 45.7% of pixels off Chrome, now 0.03%).The change here is the import path in
svg.goandsvg_test.go,go.mod/go.sum, one test (svg_clip_test.go: a clipped rect throughRasterizeSVG), and the two doc lines that said oksvg has no clipPath. No engine logic changes; the engine package tests pass.Measured on the 4009 Twemoji graphics at 72 px, interleaved rounds: 1.17 to 1.21 s before and after (no slowdown without clipPath); 212 of them draw differently now (the arc fix: flags, runners, ...).
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