kahlo 0.0.3

Optimized software rendering library.
Documentation 
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use crate::{
    bitmap::BitmapAccess,
    colour::{read_from_bytes, Colour},
    formats::PixelFormatSpec,
    math,
};

pub trait BitmapExt<Format: PixelFormatSpec>: BitmapAccess<Format> {
    fn read_colour(&self, point: math::PixelPoint) -> Option<Colour> {
        if point.x < 0
            || point.y < 0
            || point.x >= self.width() as i32
            || point.y >= self.height() as i32
        {
            return None;
        } else {
            let raw = &self.data()
                [(self.stride() * point.y as usize) + (Format::PIXEL_STRIDE * point.x as usize)..];
            Some(read_from_bytes::<Format>(raw))
        }
    }
}

impl<F: PixelFormatSpec, BA: BitmapAccess<F>> BitmapExt<F> for BA {}