void CanvasContext::destroy() {
stopDrawing();
setSurface(NULL);
freePrefetechedLayers();
destroyHardwareResources();
mAnimationContext->destroy();
if (mCanvas) {
delete mCanvas;
mCanvas = 0;
}
}
void RenderNode::decParentRefCount(TreeObserver* observer, TreeInfo* info) {
LOG_ALWAYS_FATAL_IF(!mParentCount, "already 0!");
mParentCount--;
if (!mParentCount) {
if (observer) {
observer->onMaybeRemovedFromTree(this);
}
if (CC_UNLIKELY(mPositionListener.get())) {
mPositionListener->onPositionLost(*this, info);
}
// If a child of ours is being attached to our parent then this will incorrectly
// destroy its hardware resources. However, this situation is highly unlikely
// and the failure is "just" that the layer is re-created, so this should
// be safe enough
destroyHardwareResources(observer, info);
}
}