Sylpheed/crates/sylpheed-formats/examples/additive_census.rs

use std::path::PathBuf;
use sylpheed_formats::{pak::PakArchive, ui_layout};
fn main() {
    let root = PathBuf::from(std::env::var("SYLPHEED_DISC").unwrap());
    println!("# Which elements the reference renderer now draws ADDITIVE, per screen.");
    println!("# Source: T8aD +0x04 bit 0x02, docs/re/structures/ui-blend-mode-decoded.md.");
    println!("# Generated after ui_layout::blit gained an additive path (2026-09-01).");
    println!("# Before that change EVERY row below was drawn alpha-over by our renderer,");
    println!("# which is why `verify-screen` was structurally incapable on these screens.");
    for pak in ["GP_TITLE", "GP_OPTIONS"] {
        let Ok(ar) = PakArchive::open(root.join(format!("dat/{pak}.pak"))) else {
            continue;
        };
        let n = ar.entries().len();
        for e in 0..n {
            let Ok(by) = ar.read(&ar.entries()[e]) else {
                continue;
            };
            let Some(b) = ui_layout::parse_build(&by) else {
                continue;
            };
            let mut add: Vec<&String> = b
                .sprites
                .keys()
                .filter(|s| ui_layout::blend_additive_by_name(&b, &by, s) == Some(true))
                .collect();
            if add.is_empty() {
                continue;
            }
            add.sort();
            println!(
                "\n{pak} entry {e}  --  {} of {} sprites additive",
                add.len(),
                b.sprites.len()
            );
            for s in add {
                println!("    {s}");
            }
        }
    }
}