Fixed loading rotated PCD images (#9177)

Author: hugovk

Tests/test_file_pcd.py

@@ -6,6 +6,8 @@
 
 from PIL import Image
 
+from .helper import assert_image_equal
+
 
 def test_load_raw() -> None:
     with Image.open("Tests/images/hopper.pcd") as im:
@@ -30,3 +32,8 @@ def test_rotated(orientation: int) -> None:
     f = BytesIO(data)
     with Image.open(f) as im:
         assert im.size == (512, 768)
+
+        with Image.open("Tests/images/hopper.pcd") as expected:
+            assert_image_equal(
+                im, expected.rotate(90 if orientation == 1 else 270, expand=True)
+            )

src/PIL/PcdImagePlugin.py

@@ -43,16 +43,21 @@ def _open(self) -> None:
         if orientation == 1:
             self.tile_post_rotate = 90
         elif orientation == 3:
-            self.tile_post_rotate = -90
+            self.tile_post_rotate = 270
 
         self._mode = "RGB"
         self._size = (512, 768) if orientation in (1, 3) else (768, 512)
-        self.tile = [ImageFile._Tile("pcd", (0, 0) + self.size, 96 * 2048)]
+        self.tile = [ImageFile._Tile("pcd", (0, 0, 768, 512), 96 * 2048)]
+
+    def load_prepare(self) -> None:
+        if self._im is None and self.tile_post_rotate:
+            self.im = Image.core.new(self.mode, (768, 512))
+        ImageFile.ImageFile.load_prepare(self)
 
     def load_end(self) -> None:
         if self.tile_post_rotate:
             # Handle rotated PCDs
-            self.im = self.im.rotate(self.tile_post_rotate)
+            self.im = self.rotate(self.tile_post_rotate, expand=True).im
 
 
 #