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optimize Box2D with NEON

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yang

Post subject: optimize Box2D with NEON

Posted: Thu Mar 08, 2012 11:43 pm

Joined: Thu Mar 08, 2012 11:15 pm
Posts: 1

Hi all
I want to optimize the math functions of Box2D library with ARM NEON and I want to release these to Box2D community so as more users could take advantage of it, fix bugs, as well as contribute to it.
My question is how can i do this? Is there anyone who can help me on this question.

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olafure

Post subject: Re: optimize Box2D with NEON

Posted: Fri Mar 16, 2012 3:00 pm

Joined: Fri Mar 16, 2012 2:23 pm
Posts: 3

Hehe, was just chasing a NEON bug today.

In your Android.mk file, put
LOCAL_ARM_NEON := true

I'd read docs/CPU-ARM-NEON.html in your NDK directory.

WARNING: Some CPUs support the eabi-v7a but *not* NEON. That was the crazy thing I was chasing today.
Suprisingly NVIDIA Tegra 2 is one of those lovely CPUs.

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