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feat: transparency was previously handled with a threshold; now, pixels blend into the background

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azy 2025-02-18 16:24:27 +08:00
parent 6019540077
commit f7522e261f
1 changed files with 15 additions and 9 deletions
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24
television/utils/image.rs
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@ -1,6 +1,6 @@
use std::hash::{Hash, Hasher};
use image::{DynamicImage, Rgba};
use image::{DynamicImage, Pixel, Rgba};
use image::imageops::FilterType;
use ratatui::layout::{Alignment, Rect};
@ -108,23 +108,29 @@ pub fn convert_pixel_to_span<'a>(
let color_up = color_up.0;
let color_down = color_down.0;
// there is no in between, ether it is transparent, either it use the color
let alpha_threshold = 30;
let color_up = if color_up[3] <= alpha_threshold {
let color_up = if color_up[3] != 255 {
// choose the good color for the background if transparent
if (position.0 + position.1 * 2) % 2 == 0 {
WHITE
let mut white = WHITE.clone();
white.blend(&Rgba::from(color_up));
white
} else {
GRAY
let mut gray = GRAY.clone();
gray.blend(&Rgba::from(color_up));
gray
}
} else {
Rgba::from(color_up)
};
let color_down = if color_down[3] <= alpha_threshold {
let color_down = if color_down[3] != 255 {
if (position.0 + position.1 * 2 + 1) % 2 == 0 {
WHITE
let mut white = WHITE.clone();
white.blend(&Rgba::from(color_down));
white
} else {
GRAY
let mut gray = GRAY.clone();
gray.blend(&Rgba::from(color_down));
gray
}
} else {
Rgba::from(color_down)