Question

Is there any other free vector library optimized for neon that math-neon?
I would like to get advantage of neon in my code, i have lot of objects and i am doing lot of simple vector physics-math, like adding vectors, multiplying, dotting them, those are 3d vectors but if i could make it a lot faster 2d should be ok too, the question is, is it worth using neon? for example lets take 100000 points, i need to calculate their movement, collisions etc. I am currently using my own math, and its based on inline functions, lets say that i would like to use my hypothetical neon library with matrices too, currently i am using glm for that, and its doing fine, but could it be faster? Speed advantage between arm-abi and arm7-abi in ndk is about 30 percent in my case, can neon be faster or maybe my code is translated to neon in compile time?

Answer 1

You can check eigen. It has special code that it is activated when neon instruction support is activated.