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[directfb-dev] Re: directfb savage driver was [Re: Re: savage driver]
hi denis, i have read bits of the savage documentation and it seems that the current code uses MMIO (the new one) to set up some stuff and uses BCI for a lot of the acceleration. i have figured this much out, the driver is sending BCI commands to a ring buffer and it always waits for the buffer to have enough slots before sending anything so the buffer can't overflow. now this is what i don't understand. the BCI registers are indexed and i cannot see how BCI_SEND is referring to any index at all, it is just writing to the ring buffer. basically i can't find any correlation between the flags used in the code to the register descriptions. the documentation says something about non-packed format and the new packed format, do you know anything about this ? i am trying to implement a strechblit before i touch the streams stuff. please let me know if anything i figured out was incorrect and if you could shed some light on the BCI stuff it would be greatly appreciated. cheers, alex -- Info: To unsubscribe send a mail to firstname.lastname@example.org with "unsubscribe directfb-dev" as subject.