Linux/PROCESSOR-SDK-DRA7X: GC320 : Alpha blending with multi-source blitting

Hi Gowtham,

Thanks for your input. 

The overlays can be of different dimension as compared to the base video.

Will "gco2D_StretchBlit()" API help for rescaling the overlays as desired?

Also, we need to have flexibiltiy of setting overlays at any co-ordinates on the base video. Will setting the appropriate rectangle co-ordinates for "gco2D_SetGenericSource()" before perfoming multi-source blit help?

Thanks and Regards,

Divya B M

Hi Divya

-0- on stretchblit

`gco2D_StretchBlit()` can be used for rescaling.

-1- on dynamic co-ordinates

Multi-source blit expects same destination rectangle for the sources. If you
have multiple-sources each with different destination rectangle you would have
to perform *regionization* before doing multi-source blit. By *regionization*,
you would divide the destination into rectangle of intersecting sources and
perform sequence of blitting ops on those.

Thanks,
Gowtham

Hi Gowtham,

Thanks for your reply.

Is there any sample application that we can refer to, for "regionization" you suggested for dynamic co-ordinates?

Hi Divya,

See attached for reference on doing composition by region using multi-source blit.

Thanks,
Gowtham

Hi Gowtham,

The attachment file which your comment refers to, seems to be missing.

Can you please re-attach the same?

Regards,

Divya

Hi Divya,

I believe the application has been shared to you through email. If not let me know.

Thanks,
Gowtham