clay-utils 0.1.1

Various subroutines for Clay - fast, modular and extendable ray tracer
Documentation 
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use std::ops::Deref;
use ocl;
use clay_core::{Context};


pub fn parse<T: Deref<Target=str>, I: Iterator<Item=T>>(args: I) -> clay_core::Result<Context> {
    let args = args.collect::<Vec<_>>();
    let platform = if args.len() > 1 {
        let platform_list = ocl::Platform::list();
        let index = args[1].parse::<usize>().map_err(|e| e.to_string())?;
        assert!(platform_list.len() > index);
        platform_list[index]
    } else {
        ocl::Platform::default()
    };
    let device = ocl::Device::first(platform)?;
    let context = Context::new(platform, device)?;
    Ok(context)
}