Hi Spark.
It seems current overlay interface can implemented by  using these
driver
1. v4l2 output
2. pmem
3. general fb.

According to yourself , which do you prefer ?


On Jan 22, 3:37 am, Dave Sparks <[email protected]> wrote:
> Yes, the intention with the overlay interface is to be able to support
> V4L2 and other overlay hardware.
>
> On Jan 21, 1:02 am, hanchao3c <[email protected]> wrote:
>
> > The hardware interface is continue changeing in cupcake branch.
>
> > The hardware overlay interface has some changes now .
>
> > libhardware/include/hardware/overlay.h
>
> > Sample Code :
> > hardware/libhardware/modules/overlay/overlay.cpp
>
> > # The main change list:
> > 1.  overlay_device are separated as overlay_control_device and
> > overlay_data_device
> > 2.  Data path : remove the  swapBuffers , getOffset and  getMemory
> >                          Add the dequeueBuffer and overlay_buffer_t !
>
> > The old interface  is designed for using for pmem, which is like a fb
> > driver.
>
> > The new interface is more nature for using v4l2 output driver.
>
> > Do it mean v4l2 output driver will be the common item for Android ?
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