TDA2EG-17: GPU to support "Frame Sequential 3D"?

Hi Rio,

From the video link it appears that the left-right sequential content once generated are consumed by two displays (alternate frames going to each display). If the GPU is programmed to generate the alternate content it should be able to and this appears to be more of implementation details. Is there something specific that is needed here like support for an extension, specific format or etc. 

Thanks,
Gowtham

Hi Gowtham:

The customer is willing to have this: 

https://www.youtube.com/watch?v=wZZ-KfNFG-I

Does our TDA2 product is able to do this?

If yes, how to implement?

BR Rio

https://github.com/dvdhrm/docs/blob/master/drm-howto/modeset-double-buffered.c

hi Gowtham:

please review the DRM on the above link.

Customer can ser this buffer (dev->bufs[0]) as the left frame.

And set this buffer: dev->bufs[1] as the right right frame

Thus, they are capable to make a 3D Side by Side.

Now, they want to have a 3D sequential frame (that mean: L/R frame will be viewed as a full screen.

How to modify this code snippet as a 3D sequential frame?

BR Rio

Hi Rio,

The mentioned buffers are ping-pong buffers used for display - one buffer is on the display and the other is used to ready the next frame and these roles keeps switching on every vsync. Here as there are two buffers for one frame, they would need four buffers to achieve ping-pong.

Aside from above, the bulk of the changes needs to happen on the display side on how these left and right frames are submitted to the 3D display. What kind of display are they using and is this panel support been integrated to the driver.

Thanks,
Gowtham