lashman
545bf27fe4
Lanczos3 filter, supports ByWidth, ByHeight, FitInBox, Exact modes. All 5 resize tests passing.
62 lines
1.8 KiB
Rust
62 lines
1.8 KiB
Rust
use pixstrip_core::operations::resize::resize_image;
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use pixstrip_core::operations::ResizeConfig;
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use pixstrip_core::types::Dimensions;
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fn create_test_image(width: u32, height: u32) -> image::DynamicImage {
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let img = image::RgbImage::from_fn(width, height, |x, y| {
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image::Rgb([(x % 256) as u8, (y % 256) as u8, 128])
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});
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image::DynamicImage::ImageRgb8(img)
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}
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#[test]
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fn resize_by_width() {
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let img = create_test_image(4000, 3000);
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let config = ResizeConfig::ByWidth(1200);
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let result = resize_image(&img, &config).unwrap();
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assert_eq!(result.width(), 1200);
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assert_eq!(result.height(), 900);
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}
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#[test]
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fn resize_by_height() {
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let img = create_test_image(4000, 3000);
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let config = ResizeConfig::ByHeight(600);
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let result = resize_image(&img, &config).unwrap();
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assert_eq!(result.width(), 800);
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assert_eq!(result.height(), 600);
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}
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#[test]
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fn resize_fit_in_box() {
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let img = create_test_image(4000, 3000);
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let config = ResizeConfig::FitInBox {
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max: Dimensions { width: 1920, height: 1080 },
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allow_upscale: false,
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};
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let result = resize_image(&img, &config).unwrap();
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assert_eq!(result.width(), 1440);
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assert_eq!(result.height(), 1080);
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}
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#[test]
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fn resize_no_upscale() {
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let img = create_test_image(800, 600);
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let config = ResizeConfig::FitInBox {
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max: Dimensions { width: 1920, height: 1080 },
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allow_upscale: false,
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};
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let result = resize_image(&img, &config).unwrap();
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assert_eq!(result.width(), 800);
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assert_eq!(result.height(), 600);
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}
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#[test]
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fn resize_exact() {
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let img = create_test_image(4000, 3000);
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let config = ResizeConfig::Exact(Dimensions { width: 1080, height: 1080 });
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let result = resize_image(&img, &config).unwrap();
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assert_eq!(result.width(), 1080);
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assert_eq!(result.height(), 1080);
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}
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