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Reduce test diff noisiness with intermediate rounding

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Erica Fischer
2024-03-15 12:17:32 -07:00
parent db9a4feec2
commit 3f45b5c51c
1 changed files with 9 additions and 0 deletions
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serial.cpp
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@@ -370,6 +370,15 @@ static long long scale_geometry(struct serialization_state *sst, long long *bbox
geom[i].x = std::round(x * scale); geom[i].x = std::round(x * scale);
geom[i].y = std::round(y * scale); geom[i].y = std::round(y * scale);
} else if (geometry_scale >= GLOBAL_DETAIL - 32) {
// this is silly, but rounding coordinates to what they would have been
// with a 32-bit world extent helps make test expectations not change
x = std::llround((double) x / (1LL << (GLOBAL_DETAIL - 32))) * (1LL << (GLOBAL_DETAIL - 32));
y = std::llround((double) y / (1LL << (GLOBAL_DETAIL - 32))) * (1LL << (GLOBAL_DETAIL - 32));
geom[i].x = SHIFT_RIGHT(x);
geom[i].y = SHIFT_RIGHT(y);
} else { } else {
geom[i].x = SHIFT_RIGHT(x); geom[i].x = SHIFT_RIGHT(x);
geom[i].y = SHIFT_RIGHT(y); geom[i].y = SHIFT_RIGHT(y);