57 lines
1.7 KiB
Rust
57 lines
1.7 KiB
Rust
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use photon_rs::{
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PhotonImage, multiple::watermark, native::open_image, native::save_image, transform::resize,
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};
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fn main() {
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let base_path = "/mnt/c/Users/Formulatrix/Documents/Explorations/WebApplication1/tiles1705/";
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const SCALE: f64 = 0.01;
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const SIZE: u32 = 720;
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let actual_size = (SIZE as f64 * SCALE).trunc() as u32;
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// Open the image (a PhotonImage is returned)
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let max_col = 31;
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let max_row = 55;
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let mut res = new_empty_image(actual_size * max_row, actual_size * max_col);
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for i in 1..=max_col {
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for j in 1..=max_row {
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let filename = format!("{}{}{}.png", base_path, number_to_column(i), j);
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// println!("{filename}");
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let pre = open_image(filename).expect("File should open");
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let img = resize(
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&pre,
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actual_size,
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actual_size,
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photon_rs::transform::SamplingFilter::Nearest,
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);
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watermark(
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&mut res,
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&img,
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actual_size as i64 * j as i64,
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actual_size as i64 * i as i64,
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);
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}
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}
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// Apply a sepia effect to the image.
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save_image(res, "raw_image.png").expect("File should be saved");
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}
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pub fn new_empty_image(width: u32, height: u32) -> PhotonImage {
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// 4 bytes per pixel (RGBA)
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let num_pixels = (width * height * 4) as usize;
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let raw_pixels = vec![0u8; num_pixels];
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PhotonImage::new(raw_pixels, width, height)
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}
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fn number_to_column(mut num: u32) -> String {
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let mut result = String::new();
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while num > 0 {
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num -= 1;
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let ch = ((num % 26) as u8 + b'A') as char;
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result.insert(0, ch);
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num /= 26;
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}
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result
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}
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