static void convertTargetSpaceQuadToCompositedLayer(const FloatQuad& targetSpaceQuad, LayoutObject* targetLayoutObject, const LayoutBoxModelObject& paintInvalidationContainer, FloatQuad& compositedSpaceQuad)
{
DCHECK(targetLayoutObject);
for (unsigned i = 0; i < 4; ++i) {
IntPoint point;
switch (i) {
case 0:
point = roundedIntPoint(targetSpaceQuad.p1());
break;
case 1:
point = roundedIntPoint(targetSpaceQuad.p2());
break;
case 2:
point = roundedIntPoint(targetSpaceQuad.p3());
break;
case 3:
point = roundedIntPoint(targetSpaceQuad.p4());
break;
}
// FIXME: this does not need to be absolute, just in the paint invalidation container's space.
point = targetLayoutObject->frame()->view()->contentsToRootFrame(point);
point = paintInvalidationContainer.frame()->view()->rootFrameToContents(point);
FloatPoint floatPoint = paintInvalidationContainer.absoluteToLocal(point, UseTransforms);
PaintLayer::mapPointInPaintInvalidationContainerToBacking(paintInvalidationContainer, floatPoint);
switch (i) {
case 0:
compositedSpaceQuad.setP1(floatPoint);
break;
case 1:
compositedSpaceQuad.setP2(floatPoint);
break;
case 2:
compositedSpaceQuad.setP3(floatPoint);
break;
case 3:
compositedSpaceQuad.setP4(floatPoint);
break;
}
}
}
