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Bug 1925561 - Use a quicker radius calculation for ArcParams. r=aosmond

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Differential Revision: https://phabricator.services.mozilla.com/D226242
This commit is contained in:
Lee Salzman
2024-10-20 15:47:44 +00:00
parent 13760d78ec
commit 7359e25a9b
1 changed files with 4 additions and 6 deletions
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10
gfx/2d/PathRecording.cpp
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@@ -12,14 +12,12 @@ namespace mozilla {
namespace gfx { namespace gfx {
inline Maybe<float> PathOps::ArcParams::GetRadius() const { inline Maybe<float> PathOps::ArcParams::GetRadius() const {
if (!transform.HasNonAxisAlignedTransform() && // Do a quick check for a uniform scale and/or translation transform. In the
FuzzyEqual(transform._11, transform._22) && transform._11 > 0.0f) { // worst case scenario, failing just causes a fallback to ArcToBezier.
if (transform._11 == transform._22 && transform._12 == 0.0f &&
transform._21 == 0.0f && transform._11 > 0.0f) {
return Some(transform._11); return Some(transform._11);
} }
auto scale = transform.ScaleFactors();
if (scale.AreScalesSame() && scale.xScale > 0.0f) {
return Some(scale.xScale);
}
return Nothing(); return Nothing();
} }