From fadb53f075e63a49de7c4d4c58ff07bfbfe6f478 Mon Sep 17 00:00:00 2001
From: Surma <surma@surma.link>
Date: Fri, 15 Feb 2019 19:25:32 +0100
Subject: [PATCH] Readd rotation cases

---
 codecs/rotate/rotate.rs   |  30 +++++++++++++++++++++---------
 codecs/rotate/rotate.wasm | Bin 353 -> 462 bytes
 2 files changed, 21 insertions(+), 9 deletions(-)

diff --git a/codecs/rotate/rotate.rs b/codecs/rotate/rotate.rs
index f17bbcc2..d1b19f01 100644
--- a/codecs/rotate/rotate.rs
+++ b/codecs/rotate/rotate.rs
@@ -23,7 +23,7 @@ impl<T> HardUnwrap<T> for Option<T> {
 }
 
 #[no_mangle]
-fn rotate(width: usize, height: usize, _rotate: usize) {
+fn rotate(width: usize, height: usize, rotate: usize) {
     let num_pixels = width * height;
     let in_b: &mut [u32];
     let out_b: &mut [u32];
@@ -32,14 +32,26 @@ fn rotate(width: usize, height: usize, _rotate: usize) {
         out_b = from_raw_parts_mut::<u32>((num_pixels * 4 + 8) as *mut u32, num_pixels);
     }
 
-    let new_width = height;
-    let _new_height = width;
-    for y in 0..height {
-        for x in 0..width {
-            let new_x = (new_width - 1) - y;
-            let new_y = x;
-            *out_b.get_mut(new_y * new_width + new_x).unwrap_hard() =
-                *in_b.get(y * width + x).unwrap_hard();
+    match rotate {
+        0 => {
+            for i in 0..num_pixels {
+                *out_b.get_mut(i).unwrap_hard() = *in_b.get(i).unwrap_hard();
+            }
         }
+        90 => {
+            let new_width = height;
+            let _new_height = width;
+            for y in 0..height {
+                for x in 0..width {
+                    let new_x = (new_width - 1) - y;
+                    let new_y = x;
+                    *out_b.get_mut(new_y * new_width + new_x).unwrap_hard() =
+                        *in_b.get(y * width + x).unwrap_hard();
+                }
+            }
+        }
+        180 => std::process::abort(),
+        270 => std::process::abort(),
+        _ => std::process::abort(),
     }
 }
diff --git a/codecs/rotate/rotate.wasm b/codecs/rotate/rotate.wasm
index 92547dc9390d27ade493b2173edabf851701bb92..d7514e8e5e89a47fedca3eee56b49c0ca385168f 100755
GIT binary patch
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delta 247
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