On Thu, Dec 15, 2011 at 11:57 PM, Eric Anholt <e...@anholt.net> wrote: > On Thu, 15 Dec 2011 17:58:45 +0800, zhigang.g...@linux.intel.com wrote: >> From: Zhigang Gong <zhigang.g...@linux.intel.com> >> >> Glamor need a function to create a texture from a >> BO allocated by using libdrm directly in DDX layer. >> EGL image extension API eglCreateImageKHR does support >> this function, but that extension only support one >> colore format - ARGB32 which is not sufficent for >> us. I discussed this in the mail list and KRH suggest >> me to extent GBM to support more color formats should >> be better. I took his advice and decide to use gbm >> bo to create image. Now before extent the color formats, >> I have to add a new API to the create a gbo from a >> name. This commit is for that purpose. > > If the DDX is going to be doing the memory management, then the DRI > driver needs to be using the same bufmgr struct and DRI fd as the DDX so > you can share the handle (and thus the mapping and userland caching) > instead of the name. Looks better than just create an image from the name as the DDX and DRI are really running in the same process in this case. But I don't know how to share the DDX's bufmgr with DRI driver, and how to make a texture from a handle directly by using the EGL/GBM interfaces. Can you give me more hints about how to achieve that? Thanks.
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