RE: [PATCH 3/3] V4L2 Driver for OMAP3/3 DSS.

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>
>
>> -----Original Message-----
>> From: Hans Verkuil [mailto:hverkuil@xxxxxxxxx]
>> Sent: Monday, April 06, 2009 8:27 PM
>> To: Shah, Hardik
>> Cc: linux-media@xxxxxxxxxxxxxxx; linux-omap@xxxxxxxxxxxxxxx; Jadav,
>> Brijesh R;
>> Hiremath, Vaibhav
>> Subject: RE: [PATCH 3/3] V4L2 Driver for OMAP3/3 DSS.
>>
>>
>> > Hi Hans,
>> > Please find my comments inline. Most of the comments are taken care
>> of.
>>
>> > 2.  In DSS rotation is accomplished by some memory algorithm but its
>> quite
>> > costly so -1 is essentially same as 0 degree but with out the
>> overhead.
>> > But if mirroring is on then we have to do the 0 degree rotation with
>> > overhead using some memory techniques.  So from user point of view he
>> will
>> > only be setting 0 but internally driver will take it as -1 or 0
>> depending
>> > upon the mirroring selected.
>>
>> Hi Hardik,
>>
>> I just looked over these comments and I'll do a full review in the
>> weekend
>> when I'm back from San Francisco. But just one quick remark regarding
>> this
>> magic -1 number: wouldn't it be better to write a small inline function
>> like this:
>>
>> /* return true if we need to rotate or mirror, return false if we
>>    don't have to do anything here. */
>> static inline int needs_rotate(struct foo *foo)
>> {
>>     return foo->rotate != 0 || foo->mirror;
>> }
>>
>> I think this is much more understandable. It's up to you, though.
>>
>> Regards,
> [Shah, Hardik] Hi All,
> Any comment on this series of patches will be appreciated.
>
> Hans,
> Did you get a chance to look at it?

No, but I hope to go through it this weekend.

Regards,

        Hans

-- 
Hans Verkuil - video4linux developer - sponsored by TANDBERG

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