123 lines
5.0 KiB
Rust
123 lines
5.0 KiB
Rust
#![allow(dead_code, unused_imports, unused_variables, unused_macros)]
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use std::io::Write;
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const SHADOW_RS: &str = "hcie-fx/src/tuned.rs";
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const PSD_PATH: &str = "_images/_psd_stil_test/drop_shadow.psd";
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const REF_PATH: &str = "_images/_psd_stil_test/drop_shadow.png";
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const RESULTS_FILE: &str = "/mnt/extra/00_PROJECTS/hcie-rust-v4/shadow_results.txt";
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fn main() {
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let original = std::fs::read_to_string(SHADOW_RS).expect("read tuned.rs");
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let start_tag = "// BEGIN_TUNING_ZONE";
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let end_tag = "// END_TUNING_ZONE";
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let zone_start = original.find(start_tag).unwrap();
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let zone_end = original.find(end_tag).unwrap();
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let _before = &original[..zone_start];
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let _after = &original[zone_end + end_tag.len()..];
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let ref_img = image::open(REF_PATH)
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.expect("open drop_shadow.png")
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.to_rgba8();
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let (w, h) = (ref_img.width(), ref_img.height());
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let px = (w * h) as usize;
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let ref_pixels = ref_img.into_raw();
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let layers = hcie_psd::import_psd(std::path::Path::new(PSD_PATH))
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.expect("import drop_shadow.psd");
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let layer = &layers[0];
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let alpha: Vec<u8> = layer.pixels.iter().skip(3).step_by(4).copied().collect();
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let (angle, distance, spread, size, color, blend_mode_str, opacity) = {
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let mut ang = 0.0f32;
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let mut dist = 0.0f32;
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let mut spr = 0.0f32;
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let mut sz = 0.0f32;
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let mut col = [0u8; 4];
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let mut bm = String::new();
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let mut op = 0.0f32;
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for e in &layer.effects {
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if let hcie_protocol::effects::LayerEffect::DropShadow {
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enabled: true, angle, distance, spread, size, color, blend_mode, opacity, ..
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} = e {
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ang = *angle; dist = *distance; spr = *spread; sz = *size;
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col = *color; bm = blend_mode.clone(); op = *opacity;
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}
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}
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(ang, dist, spr, sz, col, bm, op)
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};
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let bm_parsed = hcie_fx::types::blend_mode_from_string(&blend_mode_str);
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println!("DropShadow: angle={}, distance={}, spread={}, size={}, color={:?}, blend={}, opacity={}",
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angle, distance, spread, size, color, blend_mode_str, opacity);
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println!("Image: {}x{}", w, h);
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std::io::stdout().flush().ok();
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let mut best_mae = f64::MAX;
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let mut best_params = (0.0f32, 0i32, 0.0f32);
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let blur_factors = &[0.5, 0.75, 1.0, 1.25, 1.5, 2.0, 2.5, 3.0, 4.0, 5.0, 6.0, 8.0, 10.0];
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let passes_list = &[1, 2, 3, 4, 5, 6, 8, 10];
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let spread_scales = &[0.25, 0.5, 0.75, 1.0, 1.25, 1.5, 2.0];
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let total = blur_factors.len() * passes_list.len() * spread_scales.len();
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println!("Grid search: {} combos", total);
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std::io::stdout().flush().ok();
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let mut count = 0usize;
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for blur_factor in blur_factors {
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for passes in passes_list {
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for spread_scale in spread_scales {
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count += 1;
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if count % 200 == 0 {
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println!(" [{}/{}] best={:.3}", count, total, best_mae);
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std::io::stdout().flush().ok();
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}
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let shadow = hcie_fx::tuned::generate_shadow_tuned(
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&alpha, w, h, angle, distance, spread, size, color, false,
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*blur_factor, *passes, *spread_scale,
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);
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let mut out = layer.pixels.clone();
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for i in 0..px {
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let sa = shadow[i * 4 + 3];
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if sa == 0 { continue; }
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let dst = [out[i * 4], out[i * 4 + 1], out[i * 4 + 2], out[i * 4 + 3]];
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let src = [shadow[i * 4], shadow[i * 4 + 1], shadow[i * 4 + 2], sa];
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let blended = hcie_blend::blend_pixels(dst, src, bm_parsed, opacity);
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out[i * 4..i * 4 + 4].copy_from_slice(&blended);
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}
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let mut diff_sum = 0.0f64;
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for i in 0..px {
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let d = (0..4).map(|c| {
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(out[i * 4 + c] as i32 - ref_pixels[i * 4 + c] as i32).abs() as f64
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}).sum::<f64>();
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diff_sum += d;
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}
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let mae = diff_sum / px as f64 / 4.0;
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if mae < best_mae {
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best_mae = mae;
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best_params = (*blur_factor, *passes, *spread_scale);
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println!("*** NEW BEST: {:.3} (blur_factor={:.1}, passes={}, spread_scale={:.2})",
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best_mae, blur_factor, passes, spread_scale);
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std::io::stdout().flush().ok();
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}
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}
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}
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}
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if best_mae < f64::MAX {
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let (bbf, bp, bss) = best_params;
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println!("\nCompleted. Best MAE = {:.3} (blur_factor={:.1}, passes={}, spread_scale={:.2})",
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best_mae, bbf, bp, bss);
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if let Ok(mut file) = std::fs::OpenOptions::new().create(true).write(true).truncate(true).open(RESULTS_FILE) {
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let _ = writeln!(file, "=== Drop Shadow Tuned ===\n Params: blur_factor={:.1}, passes={}, spread_scale={:.2}\n MAE: {:.3}",
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bbf, bp, bss, best_mae);
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}
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}
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} |