singe-npp 0.1.0-alpha.8

Safe Rust wrappers for NVIDIA Performance Primitives library (NPP).
Documentation 
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use crate::{
    context::StreamContext,
    error::Result,
    image::{
        exchange,
        view::{C3, C4, ImageView, ImageViewMut},
    },
};

use super::super::{CopyChannelImage, ImagePipeline};

macro_rules! impl_copy_channel_image {
    ($ty:ty, $layout:ty, $copy:path) => {
        impl<'a> CopyChannelImage<$ty, $layout> for ImagePipeline<'a, $ty, $layout> {
            fn copy_channel_image(
                stream_context: &StreamContext,
                source: &ImageView<'_, $ty, $layout>,
                source_channel: usize,
                destination: &mut ImageViewMut<'_, $ty, $layout>,
                destination_channel: usize,
            ) -> Result<()> {
                $copy(
                    stream_context,
                    source,
                    source_channel,
                    destination,
                    destination_channel,
                )
            }
        }
    };
}

impl_copy_channel_image!(u8, C3, exchange::copy_channel_c3);
impl_copy_channel_image!(u8, C4, exchange::copy_channel_c4);
impl_copy_channel_image!(u16, C3, exchange::copy_channel_c3);
impl_copy_channel_image!(u16, C4, exchange::copy_channel_c4);
impl_copy_channel_image!(i16, C3, exchange::copy_channel_c3);
impl_copy_channel_image!(i16, C4, exchange::copy_channel_c4);
impl_copy_channel_image!(i32, C3, exchange::copy_channel_c3);
impl_copy_channel_image!(i32, C4, exchange::copy_channel_c4);
impl_copy_channel_image!(f32, C3, exchange::copy_channel_c3);
impl_copy_channel_image!(f32, C4, exchange::copy_channel_c4);