ruda-core 0.1.0

Shared types, device contracts and utilities for Ruda.
Documentation 
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use derive_new::new;

/// Algorithm used for upsampling.
#[derive(new, Debug, Clone, serde::Deserialize, serde::Serialize)]
pub enum InterpolateMode {
    /// Nearest-neighbor interpolation.
    /// <https://en.wikipedia.org/wiki/Nearest-neighbor_interpolation>
    Nearest,

    /// Bilinear interpolation.
    /// <https://en.wikipedia.org/wiki/Bilinear_interpolation>
    Bilinear,

    /// Bicubic interpolation.
    /// <https://en.wikipedia.org/wiki/Bicubic_interpolation>
    Bicubic,

    /// Lanczos3 interpolation (6-tap sinc-based filter).
    /// <https://en.wikipedia.org/wiki/Lanczos_resampling>
    Lanczos3,
}

/// Interpolation options.
#[derive(Debug, Clone)]
pub struct InterpolateOptions {
    /// Algorithm used for upsampling.
    pub mode: InterpolateMode,
    /// If `true`, the input and output tensors are aligned by their corner pixels.
    /// If `false`, half-pixel coordinate mapping is used instead.
    pub align_corners: bool,
}

impl InterpolateOptions {
    /// Create new interpolate options with the given mode.
    /// Defaults to `align_corners = true`.
    pub fn new(mode: InterpolateMode) -> Self {
        Self {
            mode,
            align_corners: true,
        }
    }

    /// Set align_corners.
    pub fn with_align_corners(mut self, align_corners: bool) -> Self {
        self.align_corners = align_corners;
        self
    }
}