经过阅读(du)源码,其实不少(shao)思路(lu)和Android的匿名(ming)内存有点(dian)相(xiang)似阅读本文之前就算不知道dma_buf的设计思想也没关系(xi),我不(bu)会(hui)仔细(xi)到每一行,我(wo)会(hui)注重其在gralloc服务(wu)中(zhong)的申请流程,看(kan)看(kan)ion是如(ru)何管理共(gong)享内存,为(wei)什(shi)么要(yao)抛弃ashmem我(wo)们(men)
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