Ownership of QSGTextureProvider object and of the QSGTexture object it provides

[Stefan Monov76]

I have code like this:

QQuickItem* texSource = /*...*/;
QSGTextureProvider* texProvider = texSource->textureProvider();
QSGTexture* tex = texProvider->texture();

Should I delete texProvider and tex when I no longer need them? (which, for texProvider, means "right after I take the texture from it")

I'd like answers to be supported with references.