1 files changed, 45 insertions, 0 deletions
diff --git a/src/large_label_format.rs b/src/large_label_format.rs
new file mode 100644
index 0000000..5aef6b3
--- /dev/null
+++ b/src/large_label_format.rs
@@ -0,0 +1,45 @@
+use crate::{LabelFormat,flood};
+
+pub struct LargeLabelFormat {
+    pub buffer: Vec<u32>,
+    pub width: usize,
+    pub height: usize,
+}
+
+impl std::fmt::Debug for LargeLabelFormat {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        f.debug_struct("LargeLabelFormat")
+            .field("width", &self.width)
+            .field("height", &self.height)
+            .finish()
+    }
+}
+
+impl LargeLabelFormat {
+    pub fn compress(&self) -> LabelFormat {
+        let mut label: u16 = 1;
+        let mut output_buffer: Vec<u16> = vec![0u16; self.buffer.len()];
+        for y in 0..self.height {
+            for x in 0..self.width {
+                let index = x + y*self.width;
+                if self.buffer[index] == 0 {
+                    continue;
+                }
+                if output_buffer[index] == 0 {
+                    let color = self.buffer[index];
+                    flood(&self, &mut output_buffer, x, y, color, label);
+                    label += 1;
+                }
+            }
+        }
+        return LabelFormat {
+            buffer: output_buffer,
+            width: self.width,
+            height: self.height,
+        };
+    }
+
+    pub fn dump(&self, filename: &str) -> Result<(), std::io::Error> {
+        crate::binfile::dump_u32_vec(filename, self.buffer.clone())
+    }
+}