visual-cortex-capture 0.2.0

Screen-capture abstraction for visual-cortex: frames, regions, rates, the FrameSource trait, and the macOS ScreenCaptureKit backend.
Documentation 
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#[derive(Debug, thiserror::Error)]
pub enum CaptureError {
    #[error(
        "invalid frame data: expected {expected} bytes for {width}x{height} BGRA, got {actual}"
    )]
    InvalidFrameData {
        width: u32,
        height: u32,
        expected: usize,
        actual: usize,
    },

    #[error("invalid region: {0}")]
    InvalidRegion(String),

    #[error("capture backend error: {0}")]
    Backend(String),

    #[error("capture target not found: {0}")]
    TargetNotFound(String),

    #[error("capture target lost")]
    TargetLost,

    #[error("screen capture permission denied: {0}")]
    PermissionDenied(String),

    #[error("frame source is exhausted")]
    Exhausted,
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn new_error_variants_format() {
        assert_eq!(CaptureError::TargetLost.to_string(), "capture target lost");
        assert!(CaptureError::TargetNotFound("display index 3".into())
            .to_string()
            .contains("display index 3"));
        assert!(
            CaptureError::PermissionDenied("grant Screen Recording".into())
                .to_string()
                .contains("grant Screen Recording")
        );
    }
}