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TDA2PXEVM: GRPX : Need to overlay different icons on HDMI and LCD using GRPX link

Dipti Natu
Intellectual 700 points
Part Number: TDA2PXEVM

Hello,

I have an application with dual camera and dual display(HDMI + LCD) working in PSDK3.8.

Initially I used only one GRPX instance connected to HDMI display using display_id = DISPLAY_LINK_INST_DSS_GFX1. And used it to overlay and clear certain information on HDMI display. This works fine.

Then I added one more instance of GRPX using display_id = DISPLAY_LINK_INST_DSS_VID3 to overlay grpx information on LCD. Did the relevant in chain_common.c for LCD overlay and pipeOverlay parameters and I am now able to see the CPU loads on LCD as well.

But now for my application I need to overlay separate set of icons on each display.How can I configure two separate buffers with required information and overlay on two different displays.

What changes should be done for the same?

I don't think any such example is available in SDK. Let me know the relevant changes and I can try them out.

Thanks,
Dipti
  • 0
    TI__Guru**** 451465 points

    Dipti

    Please refer to the grpx link in the modules folder. I think if you create two instances of the grpx link and it will have separate buffers, that you could use it to draw different contents. 

    Regards,

    Brijesh