197     overlay::Writeback *wb = overlay::Writeback::getInstance();  in prepare()  local
201         if(!wb->setSecure(isSecureBuffer(hnd))) {  in prepare()
207     if(!wb->configureDpyInfo(hnd->width, hnd->height)) {  in prepare()
215     int format = ovutils::getHALFormat(wb->getOutputFormat());  in prepare()
225     if(!wb->configureMemory((uint32_t)size)) {  in prepare()
278     overlay::Writeback *wb = overlay::Writeback::getInstance();  in draw()  local
279     if(!wb->writeSync()) {  in draw()
287     overlay::Writeback *wb = overlay::Writeback::getInstance();  in getDstFd()  local
288     return wb->getDstFd();  in getDstFd()
292     overlay::Writeback *wb = overlay::Writeback::getInstance();  in getDstOffset()  local
293     return wb->getOffset();  in getDstOffset()