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common: more accurate clipped viewport rounding

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Replaced ceil and direct casts with nearbyint to improve
viewport size calculation. This ensures consistent
approach with the fastTrack case in sw_engine.

@Issue: https://github.com/thorvg/thorvg/issues/3148
This commit is contained in:
Mira Grudzinska 2025-02-01 01:21:21 +01:00 • committed by Hermet Park
parent 02be99185e
commit 9c864f3e99
1 changed files with 4 additions and 4 deletions
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8
src/renderer/tvgPaint.cpp
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@ -119,10 +119,10 @@ static Result _compFastTrack(RenderMethod* renderer, Paint* cmpTarget, const Mat
if (v1.x > v2.x) std::swap(v1.x, v2.x);
if (v1.y > v2.y) std::swap(v1.y, v2.y);
after.x = static_cast<int32_t>(v1.x);
after.y = static_cast<int32_t>(v1.y);
after.w = static_cast<int32_t>(ceil(v2.x - after.x));
after.h = static_cast<int32_t>(ceil(v2.y - after.y));
after.x = static_cast<int32_t>(nearbyint(v1.x));
after.y = static_cast<int32_t>(nearbyint(v1.y));
after.w = static_cast<int32_t>(nearbyint(v2.x)) - after.x;
after.h = static_cast<int32_t>(nearbyint(v2.y)) - after.y;
if (after.w < 0) after.w = 0;
if (after.h < 0) after.h = 0;