Early out from ImageCache::get_pixels if a tile is unable to be read, rather than continuing to get error after error from a corrupt file.
Early out from ImageCache::get_pixels if a tile is unable to be read, rather than continuing to get error after error from a corrupt file.

jeremyselan/oiio,micler/oiio,mcanthony/oiio,cwilling/oiio,YangYangTL/oiio,jeremyselan/oiio,bdeluca/oiio,sambler/oiio,scott-wilson/oiio,YangYangTL/oiio,micler/oiio,lgritz/oiio,mcanthony/oiio,micler/oiio,lgritz/oiio,cwilling/oiio,lgritz/oiio,bdeluca/oiio,sambler/oiio,YangYangTL/oiio,OpenImageIO/oiio,sambler/oiio,mcanthony/oiio,scott-wilson/oiio,jeremyselan/oiio,scott-wilson/oiio,YangYangTL/oiio,mcanthony/oiio,cwilling/oiio,OpenImageIO/oiio,OpenImageIO/oiio,sambler/oiio,scott-wilson/oiio,bdeluca/oiio,cwilling/oiio,bdeluca/oiio,micler/oiio,lgritz/oiio,OpenImageIO/oiio