1 files changed, 27 insertions, 4 deletions
diff --git a/test2/src/decode.rs b/test2/src/decode.rs
index 974c6d9..da0538b 100644
--- a/test2/src/decode.rs
+++ b/test2/src/decode.rs
@@ -1,20 +1,43 @@
+use crate::{BLOCK_SIZE, Frame};
 use framework::BitstreamFilter;
-use glam::{I16Vec2, i16vec2};
+use glam::{IVec2, ivec2};
 
 pub struct Dec {
-    res: I16Vec2,
+    res: IVec2,
+    last: Frame,
 }
 impl BitstreamFilter for Dec {
     const INPUT_CODEC_ID: &str = "V_VCETEST2";
     const OUTPUT_CODEC_ID: &str = "V_UNCOMPRESSED";
 
     fn new(width: u32, height: u32) -> Self {
+        let res = ivec2(width as i32, height as i32);
         Self {
-            res: i16vec2(width as i16, height as i16),
+            res,
+            last: Frame::new(res),
         }
     }
 
     fn process_block(&mut self, a: Vec<u8>) -> Vec<u8> {
-        a
+        let mut buf = a.as_slice();
+        let mut frame = Frame::new(self.res);
+        for by in 0..frame.res.y / BLOCK_SIZE {
+            for bx in 0..frame.res.x / BLOCK_SIZE {
+                let boff = ivec2(bx * BLOCK_SIZE, by * BLOCK_SIZE);
+
+                let reloff = ivec2(buf[0] as i32 - 127, buf[1] as i32 - 127);
+                buf = &buf[2..];
+
+                let roff = reloff + boff;
+
+                Frame::copy_block(&self.last, &mut frame, roff, boff);
+
+                let size = frame.import_block_diff(boff, buf);
+                buf = &buf[size..];
+            }
+        }
+
+        self.last = frame.clone();
+        frame.data
     }
 }