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components/pixels/tests/pixels.rs
60 строк
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Andrei Volykhin
imagebitmap: Crop bitmap data with formatting (#37397)
16 июн 2025, 15:09
Не верифицирован
16 июн 2025, 15:09
bcade58
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/* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at https://mozilla.org/MPL/2.0/. */ use euclid::default::Size2D; use pixels::flip_y_rgba8_image_inplace; const RED: [u8; 4] = [255, 0, 0, 255]; const GREEN: [u8; 4] = [0, 255, 0, 255]; const BLUE: [u8; 4] = [0, 0, 255, 255]; const YELLOW: [u8; 4] = [255, 255, 0, 255]; const COLORS: [[u8; 4]; 4] = [RED, GREEN, BLUE, YELLOW]; fn create_rgba8_image(number_of_pixels: usize) -> Vec<u8> { (0..number_of_pixels) .map(|i| COLORS[i % 4]) .flatten() .collect() } #[test] fn test_flip_y_rgba8_image_inplace() { // | R G | B Y | -> | B Y | R G | let mut image2x2 = create_rgba8_image(4); flip_y_rgba8_image_inplace(Size2D::new(2, 2), &mut image2x2); assert_eq!( &image2x2[0..4], &BLUE, "Expected blue color at [0, 0] (image2x2)" ); assert_eq!( &image2x2[12..16], &GREEN, "Expected green color at [1, 1] (image2x2)" ); // | R G B | Y R G | B Y R | -> | B Y R | Y R G | R G B | let mut image3x3 = create_rgba8_image(9); flip_y_rgba8_image_inplace(Size2D::new(3, 3), &mut image3x3); assert_eq!( &image3x3[0..4], &BLUE, "Expected blue color at [0, 0] (image3x3)" ); assert_eq!( &image3x3[16..20], &RED, "Expected red color at [1, 1] (image3x3)" ); assert_eq!( &image3x3[32..36], &BLUE, "Expected blue color at [2, 2] (image3x3)" ); }