port of the c++ datamatrix detector

src/common/bit_matrix.rs

@@ -20,7 +20,7 @@
 
 use std::fmt;
 
-use crate::Exceptions;
+use crate::{Exceptions, RXingResultPoint};
 
 use super::BitArray;
 
@@ -207,6 +207,12 @@ impl BitMatrix {
         ((self.bits[offset] >> (x & 0x1f)) & 1) != 0
     }
 
+    pub fn get_point(&self, point: &RXingResultPoint) -> bool {
+        self.get(point.x as u32, point.y as u32)
+        // let offset = self.get_offset(point.y as u32, point.x as u32);
+        // ((self.bits[offset] >> (x & 0x1f)) & 1) != 0
+    }
+
     #[inline(always)]
     fn get_offset(&self, y: u32, x: u32) -> usize {
         y as usize * self.row_size + (x as usize / 32)
@@ -659,6 +665,13 @@ impl BitMatrix {
         }
         new_bm
     }
+
+    pub fn isIn(&self, p: &RXingResultPoint, b: i32) -> bool {
+        b as f32 <= p.x
+            && p.x < self.getWidth() as f32 - b as f32
+            && b as f32 <= p.y
+            && p.y < self.getHeight() as f32 - b as f32
+    }
 }
 
 impl fmt::Display for BitMatrix {