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improve efficiency of wasm poly diff

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This commit is contained in:
Stewart Allen 2021-06-23 11:13:45 -04:00
commit 14ee94311d
5 changed files with 60 additions and 54 deletions
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8
wasm/kiri-geo.cpp
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@ -135,7 +135,7 @@ Uint32 poly_union(Uint32 memat, Uint32 polys, float offset) {
}
__attribute__ ((export_name("poly_diff")))
Uint32 poly_diff(Uint32 memat, Uint32 polysA, Uint32 polysB, Uint8 AB, Uint8 BA) {
Uint32 poly_diff(Uint32 memat, Uint32 polysA, Uint32 polysB, Uint8 AB, Uint8 BA, Uint32 clean) {
Paths inA(polysA);
Paths inB(polysB);
@ -152,6 +152,9 @@ Uint32 poly_diff(Uint32 memat, Uint32 polysA, Uint32 polysB, Uint8 AB, Uint8 BA)
clip.AddPaths(inA, ptSubject, true);
clip.AddPaths(inB, ptClip, true);
clip.Execute(ctDifference, outs, pftEvenOdd, pftEvenOdd);
if (clean > 0) {
CleanPolygons(outs, (double)clean);
}
pos = writePolys(outs, pos);
clip.Clear();
}
@ -162,6 +165,9 @@ Uint32 poly_diff(Uint32 memat, Uint32 polysA, Uint32 polysB, Uint8 AB, Uint8 BA)
clip.AddPaths(inB, ptSubject, true);
clip.AddPaths(inA, ptClip, true);
clip.Execute(ctDifference, outs, pftEvenOdd, pftEvenOdd);
if (clean > 0) {
CleanPolygons(outs, (double)clean);
}
pos = writePolys(outs, pos);
clip.Clear();
}

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wasm/kiri-geo.wasm
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