add bitmap conversion from aseprite ico, add boot animation

aseprite_c/font/ico2h.rs

@@ -0,0 +1,56 @@
+use std::fs;
+use std::process::Command;
+use std::string::ToString;
+
+fn main() {
+    for entry in fs::read_dir(".").unwrap() {
+        let entry = entry.unwrap();
+        let path = entry.path();
+        
+        if !path.display().to_string().ends_with(".ico") {
+            continue;
+        }
+        
+        let name = path.file_stem().unwrap().to_str().unwrap();
+        
+        Command::new("/bin/convert").arg(&path).arg("./tmp.xbm").output().unwrap();
+        
+        let content = fs::read_to_string("./tmp.xbm").unwrap();
+        
+        let a = content.find('{').unwrap() + 1;
+        let b = content.find('}').unwrap();
+        
+        let bytes = &content[a..b].trim();
+        
+        let bytes = bytes.split(",")
+            .map(|s| s.trim())
+            .filter(|s| !s.is_empty())
+            .map(|s| u8::from_str_radix(&s[2..], 16).unwrap())
+            .collect::<Vec<_>>();
+        
+        assert!(bytes.len() == 8);
+        
+        let mut columns : [u8; 5] = [0,0,0,0,0];
+        
+        for (n, r) in bytes.iter().enumerate() {
+          for i in 0..5 {
+            if 0 != *r & (1<<i) {
+              columns[i] |= 1 << n;
+            }
+          } 
+        }        
+        
+        fn testchar(c : char) -> bool {
+          c.is_alphanumeric() || c=='_'
+        }
+        
+        let mut name = name.replace(|c:char|!testchar(c), "_");
+        if !name.starts_with(testchar) {
+          name = format!("_{}", name);
+        }
+        
+        println!("const uint8_t {}[5] = {{ {} }};", name, columns.iter().map(|c| format!("{:#04x}", !c)).collect::<Vec<_>>().join(", "));
+    }
+    
+    let _ = fs::remove_file("./tmp.xbm");
+}