maraiah: use Read for sound files

maraiah/snd.rs

@@ -4,13 +4,16 @@ pub mod defs;
 pub mod snds;
 
 use crate::{bin::Ident, err::*};
-use std::collections::BTreeMap;
+use std::{collections::BTreeMap, io::prelude::*};
 
 /// Reads all sounds from a Sound file.
-pub fn read(b: &[u8]) -> ResultS<Vec<SoundTable>>
+pub fn read(fp: &mut impl Read) -> ResultS<Vec<SoundTable>>
 {
+   let mut b = Vec::new();
+   fp.read_to_end(&mut b)?;
+
    read_data! {
-      endian: BIG, buf: b, size: 260, start: 0, data {
+      endian: BIG, buf: &b, size: 260, start: 0, data {
          let version = u32[0];
          let magic   = Ident[4];
          let src_num = u16[8] usize;
@@ -23,9 +26,10 @@ pub fn read(b: &[u8]) -> ResultS<Vec<SoundTable>>
    }
 
    let mut sc = Vec::with_capacity(src_num);
-   let mut p  = 260;
 
-   for _ in 0..src_num {
+   for i in 0..src_num {
+      let p = 260 + i * 64;
+
       let mut st = SoundTable::new();
 
       for _ in 0..snd_num {
@@ -36,8 +40,6 @@ pub fn read(b: &[u8]) -> ResultS<Vec<SoundTable>>
 
             st.insert(idx, def);
          }
-
-         p += 64;
       }
 
       sc.push(st);

tests/snd.rs

@@ -8,7 +8,9 @@ fn snd_must_not_process()
    for inp in &RANDOM {
       assert!(snd::defs::read(inp).is_err());
       assert!(snd::snds::read(inp).is_err());
-      assert!(snd::read(inp).is_err());
+
+      let mut inp = std::io::BufReader::new(&inp[..]);
+      assert!(snd::read(&mut inp).is_err());
    }
 }