INNER CODE UNIT · Rust

blit_bitmap

plotters-rs/plotters · plotters-backend/src/lib.rs:295

    fn blit_bitmap(
        &mut self,
        pos: BackendCoord,
        (iw, ih): (u32, u32),
        src: &[u8],
    ) -> Result<(), DrawingErrorKind<Self::ErrorType>> {
        let (w, h) = self.get_size();

        for dx in 0..iw {
            if pos.0 + dx as i32 >= w as i32 {
                break;
            }
            for dy in 0..ih {
                if pos.1 + dy as i32 >= h as i32 {
                    break;
                }
                // FIXME: This assume we have RGB image buffer
                let r = src[(dx + dy * iw) as usize * 3];

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