static void add_rect_to_clip(const GrClip& clip, const SkRect& devRect, GrClip* out) {
switch (clip.clipType()) {
case GrClip::kClipStack_ClipType: {
SkClipStack* stack = new SkClipStack;
*stack = *clip.clipStack();
// The stack is actually in clip space not device space.
SkRect clipRect = devRect;
SkPoint origin = { SkIntToScalar(clip.origin().fX), SkIntToScalar(clip.origin().fY) };
clipRect.offset(origin);
SkIRect iclipRect;
clipRect.roundOut(&iclipRect);
clipRect = SkRect::Make(iclipRect);
stack->clipDevRect(clipRect, SkRegion::kIntersect_Op, false);
out->setClipStack(stack, &clip.origin());
break;
}
case GrClip::kWideOpen_ClipType:
*out = GrClip(devRect);
break;
case GrClip::kIRect_ClipType: {
SkIRect intersect;
devRect.roundOut(&intersect);
if (intersect.intersect(clip.irect())) {
*out = GrClip(intersect);
} else {
*out = clip;
}
break;
}
}
}
