经过阅读(du)源码,其实不少(shao)思路(lu)和Android的匿名内(nei)存(cun)有点相似阅(yue)读本文之前就算不知道dma_buf的设(she)计思想(xiang)也没关系,我(wo)不(bu)会仔(zai)细(xi)到(dao)每一行(hang),我会注重其(qi)在gralloc服务(wu)中(zhong)的申请流程,看(kan)看(kan)ion是(shi)如何管(guan)理共(gong)享内存,为什么要抛弃ashmem我们
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