Initial commit

src-tauri/src/assets/hues.rs

@@ -0,0 +1,60 @@
+use anyhow::Result;
+use byteorder::{LittleEndian, ReadBytesExt};
+use serde::{Deserialize, Serialize};
+use std::io::{Cursor, Read};
+use std::path::Path;
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct HueEntry {
+    pub id: u32,
+    pub name: String,
+    /// 32 colors as RGBA u32 values.
+    pub colors: Vec<u32>,
+}
+
+/// Read all hues from hues.mul.
+/// Format: 375 blocks × 8 hues = 3000 hues.
+/// Each hue: 32×u16 colors + u16 tableStart + u16 tableEnd + 20-byte name.
+pub fn read_hues(hues_path: &Path) -> Result<Vec<HueEntry>> {
+    let data = std::fs::read(hues_path)?;
+    let mut cursor = Cursor::new(&data);
+    let mut hues = Vec::new();
+
+    for block in 0..375u32 {
+        // Block header (4 bytes, skip)
+        let _header = cursor.read_u32::<LittleEndian>()?;
+
+        for h in 0..8u32 {
+            let id = block * 8 + h;
+            let mut raw_colors = [0u16; 32];
+            for c in raw_colors.iter_mut() {
+                *c = cursor.read_u16::<LittleEndian>()?;
+            }
+            let _table_start = cursor.read_u16::<LittleEndian>()?;
+            let _table_end = cursor.read_u16::<LittleEndian>()?;
+
+            let mut name_buf = [0u8; 20];
+            cursor.read_exact(&mut name_buf)?;
+            let name = String::from_utf8_lossy(&name_buf)
+                .trim_end_matches('\0')
+                .to_string();
+
+            let colors = raw_colors
+                .iter()
+                .map(|&c| {
+                    let r = ((c >> 10) & 0x1F) as u32;
+                    let g = ((c >> 5) & 0x1F) as u32;
+                    let b = (c & 0x1F) as u32;
+                    let r = (r << 3) | (r >> 2);
+                    let g = (g << 3) | (g >> 2);
+                    let b = (b << 3) | (b >> 2);
+                    (r << 24) | (g << 16) | (b << 8) | 0xFF
+                })
+                .collect();
+
+            hues.push(HueEntry { id, name, colors });
+        }
+    }
+
+    Ok(hues)
+}