Calculation with MX53 GPU

[harald_krapfenb]

Hello,

I am evaluating how fast calculations on the i.MX53 3D GPU can be.

Now I am a bit stuck since all the examples (and the original target of OpenGL) is always rendering to a display.

What I want to do is

Input data (2D, pixel data) --> GPU (Some per-pixel calculations) --> Output data

I need the output data again in my application.

Can you suggest a way to do this with OpenGL ES 2.0?

Thanks,

Harald

[andre_silva · Accepted solution]

Please, check this thread: https://community.freescale.com/thread/309244

let me know if it is what you are trying to do.

regards,

Andre

[harald_krapfenb]

Hi Andre,

I implemented the virtual framebuffer approach.

If you care of some restrictions (regarding alignment, scaling etc.) I could manage to get a 1:1 mapping from input-(texture-)pixels to output-(framebuffer-)pixels.

See also here: Turn off anti-aliasing in i.MX53 GPU with OpenGL ES 2.0

Thanks!

Harald