Dear Sir:
I use "screencap" to get and it works well, but change
"screenshot" to fail
I study source code of "screencap", and it uses
"ScreenshotClient" class
that passing through SurfaceFlinger to work well, but
"screenshot" that
using "/dev/graphics/fb0" can't work
How do I recognize the GPUs can work when using "screenshot"?
Thank you!
BR,
Alan
On 2月15日, 上午5時39分, Dianne Hackborn <hack...@android.com> wrote:
> This has never been guaranteed to work, because GPUs may not be able to
> give access to the frame buffer like that. Even in the cases when it did
> work, it could be corrupted since there was no control over the state of
> the frame buffer when reading it.
>
> This is why there is a shell command to do this, which DDMS uses, and is
> updated appropriately for the platform. Use the shell command.
>
> If you are running on 3.0+ and writing system code (which means you are
> posting to the wrong group anyway) you can use the mechanisms for that...
> but put this discussion in an appropriate group like android-porting.
>
>
>
>
>
> On Tue, Feb 14, 2012 at 1:40 AM, bluestar <bluestar8...@gmail.com> wrote:
> > Dear Sir:
>
> > I use the source code from frameworks\base\cmds\screencap
> > to do screen capture
>
> > If using ScreenshotClient method, it is ok to get correct result
> > If using to open fb0, some phones will fail to get
>
> > Nexus S with Android 4.0.3 is OK
> > Samsung Galaxy S2 with Android 2.3.5 is OK
> > Galaxy Nexus S with Android 4.0.2 is failure
>
> > Do you give me some suggestion or hint for how to get right
> > result
> > by using to open fb0 for all phones?
>
> > Thank you!
>
> > BR,
> > Alan
>
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> --
> Dianne Hackborn
> Android framework engineer
> hack...@android.com
>
> Note: please don't send private questions to me, as I don't have time to
> provide private support, and so won't reply to such e-mails. All such
> questions should be posted on public forums, where I and others can see and
> answer them.- 隱藏被引用文字 -
>
> - 顯示被引用文字 -
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