lashman
52931daf53
OutputEncoder dispatches to specialized encoders per format. JPEG: mozjpeg with quality control. PNG: oxipng lossless optimization. WebP: libwebp encoding. AVIF: ravif via image crate. GIF/TIFF: fallback via image crate. Phase 3 complete - 59 tests passing, zero clippy warnings.
86 lines
2.7 KiB
Rust
86 lines
2.7 KiB
Rust
use pixstrip_core::encoder::OutputEncoder;
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use pixstrip_core::loader::ImageLoader;
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use pixstrip_core::operations::resize::resize_image;
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use pixstrip_core::operations::ResizeConfig;
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use pixstrip_core::types::ImageFormat;
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use std::path::Path;
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fn create_test_jpeg(path: &Path) {
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let img = image::RgbImage::from_fn(400, 300, |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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img.save_with_format(path, image::ImageFormat::Jpeg).unwrap();
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}
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fn create_test_png(path: &Path) {
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let img = image::RgbaImage::from_fn(400, 300, |x, y| {
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image::Rgba([(x % 256) as u8, (y % 256) as u8, 100, 255])
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});
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img.save_with_format(path, image::ImageFormat::Png).unwrap();
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}
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#[test]
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fn load_resize_save_as_webp() {
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let dir = tempfile::tempdir().unwrap();
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let input = dir.path().join("input.jpg");
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let output = dir.path().join("output.webp");
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create_test_jpeg(&input);
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let loader = ImageLoader::new();
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let img = loader.load_pixels(&input).unwrap();
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let config = ResizeConfig::ByWidth(200);
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let resized = resize_image(&img, &config).unwrap();
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assert_eq!(resized.width(), 200);
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assert_eq!(resized.height(), 150);
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let encoder = OutputEncoder::new();
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encoder.encode_to_file(&resized, &output, ImageFormat::WebP, Some(80)).unwrap();
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assert!(output.exists());
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let info = loader.load_info(&output).unwrap();
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assert_eq!(info.dimensions.width, 200);
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assert_eq!(info.dimensions.height, 150);
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}
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#[test]
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fn load_png_compress_smaller() {
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let dir = tempfile::tempdir().unwrap();
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let input = dir.path().join("input.png");
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let output = dir.path().join("output.png");
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create_test_png(&input);
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let loader = ImageLoader::new();
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let img = loader.load_pixels(&input).unwrap();
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let encoder = OutputEncoder::new();
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encoder.encode_to_file(&img, &output, ImageFormat::Png, None).unwrap();
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let original_size = std::fs::metadata(&input).unwrap().len();
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let optimized_size = std::fs::metadata(&output).unwrap().len();
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assert!(
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optimized_size <= original_size,
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"Optimized PNG ({}) should be <= original ({})",
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optimized_size,
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original_size
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);
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}
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#[test]
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fn load_jpeg_convert_to_png() {
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let dir = tempfile::tempdir().unwrap();
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let input = dir.path().join("input.jpg");
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let output = dir.path().join("output.png");
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create_test_jpeg(&input);
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let loader = ImageLoader::new();
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let img = loader.load_pixels(&input).unwrap();
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let encoder = OutputEncoder::new();
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encoder.encode_to_file(&img, &output, ImageFormat::Png, None).unwrap();
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assert!(output.exists());
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let info = loader.load_info(&output).unwrap();
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assert_eq!(info.format, Some(ImageFormat::Png));
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}
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