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ImagePixels

motion_core::pixels

Trait ImagePixels 

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pub trait ImagePixels:
    Any
    + Debug
    + Send
    + Sync {
    // Required methods
    fn width(&self) -> u32;
    fn height(&self) -> u32;
    fn level_count(&self) -> usize;
    fn level_size(&self, level: usize) -> (u32, u32);
    fn texel(&self, level: usize, column: usize, row: usize) -> [f32; 4];
    fn content_eq(&self, other: &dyn ImagePixels) -> bool;
    fn as_any(&self) -> &dyn Any;

    // Provided method
    fn extend_level(&self, level: usize, out: &mut Vec<f32>) { ... }
}
Expand description

A predecoded immutable linear-premultiplied image mip chain. Content owns decoding/storage; backends consume this shared logical contract.

Required Methods§

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fn width(&self) -> u32

Base-level width in texels.

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fn height(&self) -> u32

Base-level height in texels.

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fn level_count(&self) -> usize

Number of immutable mip levels.

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fn level_size(&self, level: usize) -> (u32, u32)

Width/height of an existing mip level.

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fn texel(&self, level: usize, column: usize, row: usize) -> [f32; 4]

One in-bounds finite linear-premultiplied texel.

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fn content_eq(&self, other: &dyn ImagePixels) -> bool

Whether another implementation owns the same immutable pixel content.

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fn as_any(&self) -> &dyn Any

Concrete storage identity, resolved only by its owning content implementation.

Provided Methods§

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fn extend_level(&self, level: usize, out: &mut Vec<f32>)

Appends every texel of an existing level in row-major order, four f32 each. Overriding this avoids one dynamic call per texel for backends that upload whole levels.

Dyn Compatibility§

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors§