经过阅读(du)源码,其实不少(shao)思路和Android的匿(ni)名内存(cun)有点(dian)相(xiang)似(si)阅读本文(wen)之前(qian)就算不知(zhi)道dma_buf的设(she)计(ji)思想也没关系,我不(bu)会仔细到(dao)每一行,我(wo)会(hui)注重其在gralloc服(fu)务中(zhong)的申请流程(cheng),看看ion是如何管(guan)理共(gong)享(xiang)内存,为什么要抛弃(qi)ashmem我们
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