Commit b15936e4 authored by Morris Tseng's avatar Morris Tseng
Browse files

Bug 1399050 - Apply inherited scale on 3d transform as well. r=kats 

MozReview-Commit-ID: 8F1d4NzVcam
parent afa14cd3

gfx/layers/wr/StackingContextHelper.cpp

+4 −4
Original line number Diff line number Diff line
@@ -92,16 +92,16 @@ StackingContextHelper::StackingContextHelper(const StackingContextHelper& aParen 
    mTransform = *aTransformPtr;

  }



  // Apply the inherited scale from parent

  mTransform.PostScale(aParentSC.mXScale, aParentSC.mYScale, 1.0);

  mTransform.NudgeToIntegersFixedEpsilon();



  bool is2d = !aTransformPtr || (aTransformPtr->Is2D() && !aPerspectivePtr);

  if (is2d) {

    nsRect itemBounds = aDisplayList->GetClippedBoundsWithRespectToASR(aDisplayListBuilder, aItem->GetActiveScrolledRoot());

    nsRect childrenVisible = aItem->GetVisibleRectForChildren();

    visibleRect = itemBounds.Intersect(childrenVisible);



    // Apply the inherited scale from parent

    mTransform.PostScale(aParentSC.mXScale, aParentSC.mYScale, 1.0);

    mTransform.NudgeToIntegersFixedEpsilon();



    gfx::Size scale = mTransform.As2D().ScaleFactors(true);



    // Restore the scale to default if the scale is too small