Merge branch 'main' into multiband

.clang-format

@@ -3,7 +3,7 @@
 BasedOnStyle: Google
 AlwaysBreakAfterReturnType: All
 AllowShortIfStatementsOnASingleLine: false
-AlignAfterOpenBracket: AlwaysBreak
+AlignAfterOpenBracket: BlockIndent
 BinPackArguments: false
 BinPackParameters: false
 BreakBeforeBraces: Attach

.github/workflows/cifuzz.yml

@@ -24,6 +24,8 @@ concurrency:
 
 jobs:
   Fuzzing:
+    # Disabled until google/oss-fuzz#11419 upgrades Python to 3.9+
+    if: false
     runs-on: ubuntu-latest
     steps:
     - name: Build Fuzzers

.github/workflows/wheels-test.sh

@@ -12,8 +12,14 @@ elif [ "${AUDITWHEEL_POLICY::9}" == "musllinux" ]; then
 else
     yum install -y fribidi
 fi
+
 if [ "${AUDITWHEEL_POLICY::9}" != "musllinux" ]; then
+  # TODO Update condition when NumPy supports free-threading
+  if [ $(python3 -c "import sysconfig;print(sysconfig.get_config_var('Py_GIL_DISABLED'))") == "1" ]; then
+    python3 -m pip install numpy --index-url https://pypi.anaconda.org/scientific-python-nightly-wheels/simple
+  else
     python3 -m pip install numpy
+  fi
 fi
 
 if [ ! -d "test-images-main" ]; then

.github/workflows/wheels.yml

@@ -1,6 +1,14 @@
 name: Wheels
 
 on:
+  schedule:
+  #        ┌───────────── minute (0 - 59)
+  #        │  ┌───────────── hour (0 - 23)
+  #        │  │ ┌───────────── day of the month (1 - 31)
+  #        │  │ │ ┌───────────── month (1 - 12 or JAN-DEC)
+  #        │  │ │ │ ┌───────────── day of the week (0 - 6 or SUN-SAT)
+  #        │  │ │ │ │
+  - cron: "42 1 * * 0,3"
   push:
     paths:
       - ".ci/requirements-cibw.txt"
@@ -33,6 +41,7 @@ env:
 
 jobs:
   build-1-QEMU-emulated-wheels:
+    if: github.event_name != 'schedule' && github.event_name != 'workflow_dispatch'
     name: aarch64 ${{ matrix.python-version }} ${{ matrix.spec }}
     runs-on: ubuntu-latest
     strategy:
@@ -129,6 +138,7 @@ jobs:
         env:
           CIBW_ARCHS: ${{ matrix.cibw_arch }}
           CIBW_BUILD: ${{ matrix.build }}
+          CIBW_FREE_THREADED_SUPPORT: True
           CIBW_MANYLINUX_PYPY_X86_64_IMAGE: ${{ matrix.manylinux }}
           CIBW_MANYLINUX_X86_64_IMAGE: ${{ matrix.manylinux }}
           CIBW_PRERELEASE_PYTHONS: True
@@ -201,6 +211,7 @@ jobs:
           CIBW_ARCHS: ${{ matrix.cibw_arch }}
           CIBW_BEFORE_ALL: "{package}\\winbuild\\build\\build_dep_all.cmd"
           CIBW_CACHE_PATH: "C:\\cibw"
+          CIBW_FREE_THREADED_SUPPORT: True
           CIBW_PRERELEASE_PYTHONS: True
           CIBW_TEST_SKIP: "*-win_arm64"
           CIBW_TEST_COMMAND: 'docker run --rm
@@ -225,6 +236,7 @@ jobs:
           path: winbuild\build\bin\fribidi*
 
   sdist:
+    if: github.event_name != 'schedule'
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
@@ -243,6 +255,23 @@ jobs:
         name: dist-sdist
         path: dist/*.tar.gz
 
+  scientific-python-nightly-wheels-publish:
+    if: github.event_name == 'schedule' || github.event_name == 'workflow_dispatch'
+    needs: [build-2-native-wheels, windows]
+    runs-on: ubuntu-latest
+    name: Upload wheels to scientific-python-nightly-wheels
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          pattern: dist-*
+          path: dist
+          merge-multiple: true
+      - name: Upload wheels to scientific-python-nightly-wheels
+        uses: scientific-python/upload-nightly-action@b67d7fcc0396e1128a474d1ab2b48aa94680f9fc # 0.5.0
+        with:
+          artifacts_path: dist
+          anaconda_nightly_upload_token: ${{ secrets.ANACONDA_ORG_UPLOAD_TOKEN }}
+
   pypi-publish:
     if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
     needs: [build-1-QEMU-emulated-wheels, build-2-native-wheels, windows, sdist]

CHANGES.rst

@@ -5,6 +5,18 @@ Changelog (Pillow)
 11.0.0 (unreleased)
 -------------------
 
+- Deprecate ImageMath lambda_eval and unsafe_eval options argument #8242
+  [radarhere]
+
+- Changed ContainerIO to subclass IO #8240
+  [radarhere]
+
+- Move away from APIs that use borrowed references under the free-threaded build #8216
+  [hugovk, lysnikolaou]
+
+- Allow size argument to resize() to be a NumPy array #8201
+  [radarhere]
+
 - Drop support for Python 3.8 #8183
   [hugovk, radarhere]
 

Tests/test_file_container.py

@@ -1,7 +1,5 @@
 from __future__ import annotations
 
-from typing import Literal
-
 import pytest
 
 from PIL import ContainerIO, Image
@@ -23,6 +21,13 @@ def test_isatty() -> None:
     assert container.isatty() is False
 
 
+def test_seekable() -> None:
+    with hopper() as im:
+        container = ContainerIO.ContainerIO(im, 0, 0)
+
+    assert container.seekable() is True
+
+
 @pytest.mark.parametrize(
     "mode, expected_position",
     (
@@ -31,7 +36,7 @@ def test_isatty() -> None:
         (2, 100),
     ),
 )
-def test_seek_mode(mode: Literal[0, 1, 2], expected_position: int) -> None:
+def test_seek_mode(mode: int, expected_position: int) -> None:
     # Arrange
     with open(TEST_FILE, "rb") as fh:
         container = ContainerIO.ContainerIO(fh, 22, 100)
@@ -44,6 +49,14 @@ def test_seek_mode(mode: Literal[0, 1, 2], expected_position: int) -> None:
         assert container.tell() == expected_position
 
 
+@pytest.mark.parametrize("bytesmode", (True, False))
+def test_readable(bytesmode: bool) -> None:
+    with open(TEST_FILE, "rb" if bytesmode else "r") as fh:
+        container = ContainerIO.ContainerIO(fh, 0, 120)
+
+    assert container.readable() is True
+
+
 @pytest.mark.parametrize("bytesmode", (True, False))
 def test_read_n0(bytesmode: bool) -> None:
     # Arrange
@@ -51,7 +64,7 @@ def test_read_n0(bytesmode: bool) -> None:
         container = ContainerIO.ContainerIO(fh, 22, 100)
 
         # Act
-        container.seek(81)
+        assert container.seek(81) == 81
         data = container.read()
 
         # Assert
@@ -67,7 +80,7 @@ def test_read_n(bytesmode: bool) -> None:
         container = ContainerIO.ContainerIO(fh, 22, 100)
 
         # Act
-        container.seek(81)
+        assert container.seek(81) == 81
         data = container.read(3)
 
         # Assert
@@ -83,7 +96,7 @@ def test_read_eof(bytesmode: bool) -> None:
         container = ContainerIO.ContainerIO(fh, 22, 100)
 
         # Act
-        container.seek(100)
+        assert container.seek(100) == 100
         data = container.read()
 
         # Assert
@@ -94,21 +107,65 @@ def test_read_eof(bytesmode: bool) -> None:
 
 @pytest.mark.parametrize("bytesmode", (True, False))
 def test_readline(bytesmode: bool) -> None:
-    # Arrange
     with open(TEST_FILE, "rb" if bytesmode else "r") as fh:
         container = ContainerIO.ContainerIO(fh, 0, 120)
 
-        # Act
         data = container.readline()
-
-        # Assert
         if bytesmode:
             data = data.decode()
         assert data == "This is line 1\n"
 
+        data = container.readline(4)
+        if bytesmode:
+            data = data.decode()
+        assert data == "This"
+
 
 @pytest.mark.parametrize("bytesmode", (True, False))
 def test_readlines(bytesmode: bool) -> None:
+    expected = [
+        "This is line 1\n",
+        "This is line 2\n",
+        "This is line 3\n",
+        "This is line 4\n",
+        "This is line 5\n",
+        "This is line 6\n",
+        "This is line 7\n",
+        "This is line 8\n",
+    ]
+    with open(TEST_FILE, "rb" if bytesmode else "r") as fh:
+        container = ContainerIO.ContainerIO(fh, 0, 120)
+
+        data = container.readlines()
+        if bytesmode:
+            data = [line.decode() for line in data]
+        assert data == expected
+
+        assert container.seek(0) == 0
+
+        data = container.readlines(2)
+        if bytesmode:
+            data = [line.decode() for line in data]
+        assert data == expected[:2]
+
+
+@pytest.mark.parametrize("bytesmode", (True, False))
+def test_write(bytesmode: bool) -> None:
+    with open(TEST_FILE, "rb" if bytesmode else "r") as fh:
+        container = ContainerIO.ContainerIO(fh, 0, 120)
+
+        assert container.writable() is False
+
+        with pytest.raises(NotImplementedError):
+            container.write(b"" if bytesmode else "")
+        with pytest.raises(NotImplementedError):
+            container.writelines([])
+        with pytest.raises(NotImplementedError):
+            container.truncate()
+
+
+@pytest.mark.parametrize("bytesmode", (True, False))
+def test_iter(bytesmode: bool) -> None:
     # Arrange
     expected = [
         "This is line 1\n",
@@ -124,9 +181,21 @@ def test_readlines(bytesmode: bool) -> None:
         container = ContainerIO.ContainerIO(fh, 0, 120)
 
         # Act
-        data = container.readlines()
+        data = []
+        for line in container:
+            data.append(line)
 
         # Assert
         if bytesmode:
             data = [line.decode() for line in data]
         assert data == expected
+
+
+@pytest.mark.parametrize("bytesmode", (True, False))
+def test_file(bytesmode: bool) -> None:
+    with open(TEST_FILE, "rb" if bytesmode else "r") as fh:
+        container = ContainerIO.ContainerIO(fh, 0, 120)
+
+        assert isinstance(container.fileno(), int)
+        container.flush()
+        container.close()

Tests/test_file_png.py

@@ -41,7 +41,7 @@ MAGIC = PngImagePlugin._MAGIC
 
 def chunk(cid: bytes, *data: bytes) -> bytes:
     test_file = BytesIO()
-    PngImagePlugin.putchunk(*(test_file, cid) + data)
+    PngImagePlugin.putchunk(test_file, cid, *data)
     return test_file.getvalue()
 
 

Tests/test_imagefile.py

@@ -127,7 +127,7 @@ class TestImageFile:
     def test_raise_typeerror(self) -> None:
         with pytest.raises(TypeError):
             parser = ImageFile.Parser()
-            parser.feed(1)
+            parser.feed(1)  # type: ignore[arg-type]
 
     def test_negative_stride(self) -> None:
         with open("Tests/images/raw_negative_stride.bin", "rb") as f:
@@ -305,7 +305,7 @@ class TestPyDecoder(CodecsTest):
             im.load()
 
     def test_decode(self) -> None:
-        decoder = ImageFile.PyDecoder(None)
+        decoder = ImageFile.PyDecoder("")
         with pytest.raises(NotImplementedError):
             decoder.decode(b"")
 
@@ -383,7 +383,7 @@ class TestPyEncoder(CodecsTest):
             )
 
     def test_encode(self) -> None:
-        encoder = ImageFile.PyEncoder(None)
+        encoder = ImageFile.PyEncoder("")
         with pytest.raises(NotImplementedError):
             encoder.encode(0)
 

Tests/test_imagemath_lambda_eval.py

@@ -1,5 +1,9 @@
 from __future__ import annotations
 
+from typing import Any
+
+import pytest
+
 from PIL import Image, ImageMath
 
 
@@ -19,7 +23,7 @@ I = Image.new("I", (1, 1), 4)  # noqa: E741
 A2 = A.resize((2, 2))
 B2 = B.resize((2, 2))
 
-images = {"A": A, "B": B, "F": F, "I": I}
+images: dict[str, Any] = {"A": A, "B": B, "F": F, "I": I}
 
 
 def test_sanity() -> None:
@@ -30,13 +34,13 @@ def test_sanity() -> None:
         == "I 3"
     )
     assert (
-        pixel(ImageMath.lambda_eval(lambda args: args["A"] + args["B"], images))
+        pixel(ImageMath.lambda_eval(lambda args: args["A"] + args["B"], **images))
         == "I 3"
     )
     assert (
         pixel(
             ImageMath.lambda_eval(
-                lambda args: args["float"](args["A"]) + args["B"], images
+                lambda args: args["float"](args["A"]) + args["B"], **images
             )
         )
         == "F 3.0"
@@ -44,42 +48,47 @@ def test_sanity() -> None:
     assert (
         pixel(
             ImageMath.lambda_eval(
-                lambda args: args["int"](args["float"](args["A"]) + args["B"]), images
+                lambda args: args["int"](args["float"](args["A"]) + args["B"]), **images
             )
         )
         == "I 3"
     )
 
 
+def test_options_deprecated() -> None:
+    with pytest.warns(DeprecationWarning):
+        assert ImageMath.lambda_eval(lambda args: 1, images) == 1
+
+
 def test_ops() -> None:
-    assert pixel(ImageMath.lambda_eval(lambda args: args["A"] * -1, images)) == "I -1"
+    assert pixel(ImageMath.lambda_eval(lambda args: args["A"] * -1, **images)) == "I -1"
 
     assert (
-        pixel(ImageMath.lambda_eval(lambda args: args["A"] + args["B"], images))
+        pixel(ImageMath.lambda_eval(lambda args: args["A"] + args["B"], **images))
         == "I 3"
     )
     assert (
-        pixel(ImageMath.lambda_eval(lambda args: args["A"] - args["B"], images))
+        pixel(ImageMath.lambda_eval(lambda args: args["A"] - args["B"], **images))
         == "I -1"
     )
     assert (
-        pixel(ImageMath.lambda_eval(lambda args: args["A"] * args["B"], images))
+        pixel(ImageMath.lambda_eval(lambda args: args["A"] * args["B"], **images))
         == "I 2"
     )
     assert (
-        pixel(ImageMath.lambda_eval(lambda args: args["A"] / args["B"], images))
+        pixel(ImageMath.lambda_eval(lambda args: args["A"] / args["B"], **images))
         == "I 0"
     )
-    assert pixel(ImageMath.lambda_eval(lambda args: args["B"] ** 2, images)) == "I 4"
+    assert pixel(ImageMath.lambda_eval(lambda args: args["B"] ** 2, **images)) == "I 4"
     assert (
-        pixel(ImageMath.lambda_eval(lambda args: args["B"] ** 33, images))
+        pixel(ImageMath.lambda_eval(lambda args: args["B"] ** 33, **images))
         == "I 2147483647"
     )
 
     assert (
         pixel(
             ImageMath.lambda_eval(
-                lambda args: args["float"](args["A"]) + args["B"], images
+                lambda args: args["float"](args["A"]) + args["B"], **images
             )
         )
         == "F 3.0"
@@ -87,7 +96,7 @@ def test_ops() -> None:
     assert (
         pixel(
             ImageMath.lambda_eval(
-                lambda args: args["float"](args["A"]) - args["B"], images
+                lambda args: args["float"](args["A"]) - args["B"], **images
             )
         )
         == "F -1.0"
@@ -95,7 +104,7 @@ def test_ops() -> None:
     assert (
         pixel(
             ImageMath.lambda_eval(
-                lambda args: args["float"](args["A"]) * args["B"], images
+                lambda args: args["float"](args["A"]) * args["B"], **images
             )
         )
         == "F 2.0"
@@ -103,31 +112,33 @@ def test_ops() -> None:
     assert (
         pixel(
             ImageMath.lambda_eval(
-                lambda args: args["float"](args["A"]) / args["B"], images
+                lambda args: args["float"](args["A"]) / args["B"], **images
             )
         )
         == "F 0.5"
     )
     assert (
-        pixel(ImageMath.lambda_eval(lambda args: args["float"](args["B"]) ** 2, images))
+        pixel(
+            ImageMath.lambda_eval(lambda args: args["float"](args["B"]) ** 2, **images)
+        )
         == "F 4.0"
     )
     assert (
         pixel(
-            ImageMath.lambda_eval(lambda args: args["float"](args["B"]) ** 33, images)
+            ImageMath.lambda_eval(lambda args: args["float"](args["B"]) ** 33, **images)
         )
         == "F 8589934592.0"
     )
 
 
 def test_logical() -> None:
-    assert pixel(ImageMath.lambda_eval(lambda args: not args["A"], images)) == 0
+    assert pixel(ImageMath.lambda_eval(lambda args: not args["A"], **images)) == 0
     assert (
-        pixel(ImageMath.lambda_eval(lambda args: args["A"] and args["B"], images))
+        pixel(ImageMath.lambda_eval(lambda args: args["A"] and args["B"], **images))
         == "L 2"
     )
     assert (
-        pixel(ImageMath.lambda_eval(lambda args: args["A"] or args["B"], images))
+        pixel(ImageMath.lambda_eval(lambda args: args["A"] or args["B"], **images))
         == "L 1"
     )
 
@@ -136,7 +147,7 @@ def test_convert() -> None:
     assert (
         pixel(
             ImageMath.lambda_eval(
-                lambda args: args["convert"](args["A"] + args["B"], "L"), images
+                lambda args: args["convert"](args["A"] + args["B"], "L"), **images
             )
         )
         == "L 3"
@@ -144,7 +155,7 @@ def test_convert() -> None:
     assert (
         pixel(
             ImageMath.lambda_eval(
-                lambda args: args["convert"](args["A"] + args["B"], "1"), images
+                lambda args: args["convert"](args["A"] + args["B"], "1"), **images
             )
         )
         == "1 0"
@@ -152,7 +163,7 @@ def test_convert() -> None:
     assert (
         pixel(
             ImageMath.lambda_eval(
-                lambda args: args["convert"](args["A"] + args["B"], "RGB"), images
+                lambda args: args["convert"](args["A"] + args["B"], "RGB"), **images
             )
         )
         == "RGB (3, 3, 3)"
@@ -163,7 +174,7 @@ def test_compare() -> None:
     assert (
         pixel(
             ImageMath.lambda_eval(
-                lambda args: args["min"](args["A"], args["B"]), images
+                lambda args: args["min"](args["A"], args["B"]), **images
             )
         )
         == "I 1"
@@ -171,13 +182,13 @@ def test_compare() -> None:
     assert (
         pixel(
             ImageMath.lambda_eval(
-                lambda args: args["max"](args["A"], args["B"]), images
+                lambda args: args["max"](args["A"], args["B"]), **images
             )
         )
         == "I 2"
     )
-    assert pixel(ImageMath.lambda_eval(lambda args: args["A"] == 1, images)) == "I 1"
+    assert pixel(ImageMath.lambda_eval(lambda args: args["A"] == 1, **images)) == "I 1"
-    assert pixel(ImageMath.lambda_eval(lambda args: args["A"] == 2, images)) == "I 0"
+    assert pixel(ImageMath.lambda_eval(lambda args: args["A"] == 2, **images)) == "I 0"
 
 
 def test_one_image_larger() -> None:

Tests/test_imagemath_unsafe_eval.py

@@ -1,5 +1,7 @@
 from __future__ import annotations
 
+from typing import Any
+
 import pytest
 
 from PIL import Image, ImageMath
@@ -21,16 +23,16 @@ I = Image.new("I", (1, 1), 4)  # noqa: E741
 A2 = A.resize((2, 2))
 B2 = B.resize((2, 2))
 
-images = {"A": A, "B": B, "F": F, "I": I}
+images: dict[str, Any] = {"A": A, "B": B, "F": F, "I": I}
 
 
 def test_sanity() -> None:
     assert ImageMath.unsafe_eval("1") == 1
     assert ImageMath.unsafe_eval("1+A", A=2) == 3
     assert pixel(ImageMath.unsafe_eval("A+B", A=A, B=B)) == "I 3"
-    assert pixel(ImageMath.unsafe_eval("A+B", images)) == "I 3"
+    assert pixel(ImageMath.unsafe_eval("A+B", **images)) == "I 3"
-    assert pixel(ImageMath.unsafe_eval("float(A)+B", images)) == "F 3.0"
+    assert pixel(ImageMath.unsafe_eval("float(A)+B", **images)) == "F 3.0"
-    assert pixel(ImageMath.unsafe_eval("int(float(A)+B)", images)) == "I 3"
+    assert pixel(ImageMath.unsafe_eval("int(float(A)+B)", **images)) == "I 3"
 
 
 def test_eval_deprecated() -> None:
@@ -38,23 +40,28 @@ def test_eval_deprecated() -> None:
         assert ImageMath.eval("1") == 1
 
 
+def test_options_deprecated() -> None:
+    with pytest.warns(DeprecationWarning):
+        assert ImageMath.unsafe_eval("1", images) == 1
+
+
 def test_ops() -> None:
-    assert pixel(ImageMath.unsafe_eval("-A", images)) == "I -1"
+    assert pixel(ImageMath.unsafe_eval("-A", **images)) == "I -1"
-    assert pixel(ImageMath.unsafe_eval("+B", images)) == "L 2"
+    assert pixel(ImageMath.unsafe_eval("+B", **images)) == "L 2"
 
-    assert pixel(ImageMath.unsafe_eval("A+B", images)) == "I 3"
+    assert pixel(ImageMath.unsafe_eval("A+B", **images)) == "I 3"
-    assert pixel(ImageMath.unsafe_eval("A-B", images)) == "I -1"
+    assert pixel(ImageMath.unsafe_eval("A-B", **images)) == "I -1"
-    assert pixel(ImageMath.unsafe_eval("A*B", images)) == "I 2"
+    assert pixel(ImageMath.unsafe_eval("A*B", **images)) == "I 2"
-    assert pixel(ImageMath.unsafe_eval("A/B", images)) == "I 0"
+    assert pixel(ImageMath.unsafe_eval("A/B", **images)) == "I 0"
-    assert pixel(ImageMath.unsafe_eval("B**2", images)) == "I 4"
+    assert pixel(ImageMath.unsafe_eval("B**2", **images)) == "I 4"
-    assert pixel(ImageMath.unsafe_eval("B**33", images)) == "I 2147483647"
+    assert pixel(ImageMath.unsafe_eval("B**33", **images)) == "I 2147483647"
 
-    assert pixel(ImageMath.unsafe_eval("float(A)+B", images)) == "F 3.0"
+    assert pixel(ImageMath.unsafe_eval("float(A)+B", **images)) == "F 3.0"
-    assert pixel(ImageMath.unsafe_eval("float(A)-B", images)) == "F -1.0"
+    assert pixel(ImageMath.unsafe_eval("float(A)-B", **images)) == "F -1.0"
-    assert pixel(ImageMath.unsafe_eval("float(A)*B", images)) == "F 2.0"
+    assert pixel(ImageMath.unsafe_eval("float(A)*B", **images)) == "F 2.0"
-    assert pixel(ImageMath.unsafe_eval("float(A)/B", images)) == "F 0.5"
+    assert pixel(ImageMath.unsafe_eval("float(A)/B", **images)) == "F 0.5"
-    assert pixel(ImageMath.unsafe_eval("float(B)**2", images)) == "F 4.0"
+    assert pixel(ImageMath.unsafe_eval("float(B)**2", **images)) == "F 4.0"
-    assert pixel(ImageMath.unsafe_eval("float(B)**33", images)) == "F 8589934592.0"
+    assert pixel(ImageMath.unsafe_eval("float(B)**33", **images)) == "F 8589934592.0"
 
 
 @pytest.mark.parametrize(
@@ -72,33 +79,33 @@ def test_prevent_exec(expression: str) -> None:
 
 def test_prevent_double_underscores() -> None:
     with pytest.raises(ValueError):
-        ImageMath.unsafe_eval("1", {"__": None})
+        ImageMath.unsafe_eval("1", __=None)
 
 
 def test_prevent_builtins() -> None:
     with pytest.raises(ValueError):
-        ImageMath.unsafe_eval("(lambda: exec('exit()'))()", {"exec": None})
+        ImageMath.unsafe_eval("(lambda: exec('exit()'))()", exec=None)
 
 
 def test_logical() -> None:
-    assert pixel(ImageMath.unsafe_eval("not A", images)) == 0
+    assert pixel(ImageMath.unsafe_eval("not A", **images)) == 0
-    assert pixel(ImageMath.unsafe_eval("A and B", images)) == "L 2"
+    assert pixel(ImageMath.unsafe_eval("A and B", **images)) == "L 2"
-    assert pixel(ImageMath.unsafe_eval("A or B", images)) == "L 1"
+    assert pixel(ImageMath.unsafe_eval("A or B", **images)) == "L 1"
 
 
 def test_convert() -> None:
-    assert pixel(ImageMath.unsafe_eval("convert(A+B, 'L')", images)) == "L 3"
+    assert pixel(ImageMath.unsafe_eval("convert(A+B, 'L')", **images)) == "L 3"
-    assert pixel(ImageMath.unsafe_eval("convert(A+B, '1')", images)) == "1 0"
+    assert pixel(ImageMath.unsafe_eval("convert(A+B, '1')", **images)) == "1 0"
     assert (
-        pixel(ImageMath.unsafe_eval("convert(A+B, 'RGB')", images)) == "RGB (3, 3, 3)"
+        pixel(ImageMath.unsafe_eval("convert(A+B, 'RGB')", **images)) == "RGB (3, 3, 3)"
     )
 
 
 def test_compare() -> None:
-    assert pixel(ImageMath.unsafe_eval("min(A, B)", images)) == "I 1"
+    assert pixel(ImageMath.unsafe_eval("min(A, B)", **images)) == "I 1"
-    assert pixel(ImageMath.unsafe_eval("max(A, B)", images)) == "I 2"
+    assert pixel(ImageMath.unsafe_eval("max(A, B)", **images)) == "I 2"
-    assert pixel(ImageMath.unsafe_eval("A == 1", images)) == "I 1"
+    assert pixel(ImageMath.unsafe_eval("A == 1", **images)) == "I 1"
-    assert pixel(ImageMath.unsafe_eval("A == 2", images)) == "I 0"
+    assert pixel(ImageMath.unsafe_eval("A == 2", **images)) == "I 0"
 
 
 def test_one_image_larger() -> None:

Tests/test_imagewin.py

@@ -57,6 +57,9 @@ class TestImageWinDib:
         # Assert
         assert dib.size == (128, 128)
 
+        with pytest.raises(ValueError):
+            ImageWin.Dib(mode)
+
     def test_dib_paste(self) -> None:
         # Arrange
         im = hopper()

docs/deprecations.rst

@@ -109,6 +109,15 @@ ImageDraw.getdraw hints parameter
 
 The ``hints`` parameter in :py:meth:`~PIL.ImageDraw.getdraw()` has been deprecated.
 
+ImageMath.lambda_eval and ImageMath.unsafe_eval options parameter
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+.. deprecated:: 11.0.0
+
+The ``options`` parameter in :py:meth:`~PIL.ImageMath.lambda_eval()` and
+:py:meth:`~PIL.ImageMath.unsafe_eval()` has been deprecated. One or more keyword
+arguments can be used instead.
+
 Removed features
 ----------------
 

docs/reference/ImageMath.rst

@@ -31,20 +31,21 @@ Example: Using the :py:mod:`~PIL.ImageMath` module
               b=im2
             )
 
-.. py:function:: lambda_eval(expression, options)
+.. py:function:: lambda_eval(expression, options, **kw)
 
     Returns the result of an image function.
 
     :param expression: A function that receives a dictionary.
-    :param options: Values to add to the function's dictionary, mapping image
+    :param options: Values to add to the function's dictionary. Note that the names
-                    names to Image instances. You can use one or more keyword
+                    must be valid Python identifiers. Deprecated.
-                    arguments instead of a dictionary, as shown in the above
+                    You can instead use one or more keyword arguments, as
-                    example. Note that the names must be valid Python
+                    shown in the above example.
-                    identifiers.
+    :param \**kw: Values to add to the function's dictionary, mapping image names to
+                 Image instances.
     :return: An image, an integer value, a floating point value,
              or a pixel tuple, depending on the expression.
 
-.. py:function:: unsafe_eval(expression, options)
+.. py:function:: unsafe_eval(expression, options, **kw)
 
     Evaluates an image expression.
 
@@ -61,11 +62,12 @@ Example: Using the :py:mod:`~PIL.ImageMath` module
     :param expression: A string which uses the standard Python expression
                        syntax. In addition to the standard operators, you can
                        also use the functions described below.
-    :param options: Values to add to the function's dictionary, mapping image
+    :param options: Values to add to the evaluation context. Note that the names must
-                    names to Image instances. You can use one or more keyword
+                    be valid Python identifiers. Deprecated.
-                    arguments instead of a dictionary, as shown in the above
+                    You can instead use one or more keyword arguments, as
-                    example. Note that the names must be valid Python
+                    shown in the above example.
-                    identifiers.
+    :param \**kw: Values to add to the evaluation context, mapping image names to Image
+                 instances.
     :return: An image, an integer value, a floating point value,
              or a pixel tuple, depending on the expression.
 

docs/releasenotes/11.0.0.rst

@@ -43,10 +43,12 @@ similarly removed.
 Deprecations
 ============
 
-TODO
+ImageMath.lambda_eval and ImageMath.unsafe_eval options parameter
-^^^^
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-TODO
+The ``options`` parameter in :py:meth:`~PIL.ImageMath.lambda_eval()` and
+:py:meth:`~PIL.ImageMath.unsafe_eval()` has been deprecated. One or more
+keyword arguments can be used instead.
 
 API Changes
 ===========

pyproject.toml

@@ -161,5 +161,4 @@ exclude = [
   '^Tests/test_qt_image_qapplication.py$',
   '^Tests/test_font_pcf_charsets.py$',
   '^Tests/test_font_pcf.py$',
-  '^Tests/test_file_tar.py$',
 ]

src/PIL/ContainerIO.py

@@ -16,10 +16,11 @@
 from __future__ import annotations
 
 import io
-from typing import IO, AnyStr, Generic, Literal
+from collections.abc import Iterable
+from typing import IO, AnyStr, NoReturn
 
 
-class ContainerIO(Generic[AnyStr]):
+class ContainerIO(IO[AnyStr]):
     """
     A file object that provides read access to a part of an existing
     file (for example a TAR file).
@@ -45,7 +46,10 @@ class ContainerIO(Generic[AnyStr]):
     def isatty(self) -> bool:
         return False
 
-    def seek(self, offset: int, mode: Literal[0, 1, 2] = io.SEEK_SET) -> None:
+    def seekable(self) -> bool:
+        return True
+
+    def seek(self, offset: int, mode: int = io.SEEK_SET) -> int:
         """
         Move file pointer.
 
@@ -53,6 +57,7 @@ class ContainerIO(Generic[AnyStr]):
         :param mode: Starting position. Use 0 for beginning of region, 1
            for current offset, and 2 for end of region.  You cannot move
            the pointer outside the defined region.
+        :returns: Offset from start of region, in bytes.
         """
         if mode == 1:
             self.pos = self.pos + offset
@@ -63,6 +68,7 @@ class ContainerIO(Generic[AnyStr]):
         # clamp
         self.pos = max(0, min(self.pos, self.length))
         self.fh.seek(self.offset + self.pos)
+        return self.pos
 
     def tell(self) -> int:
         """
@@ -72,27 +78,32 @@ class ContainerIO(Generic[AnyStr]):
         """
         return self.pos
 
-    def read(self, n: int = 0) -> AnyStr:
+    def readable(self) -> bool:
+        return True
+
+    def read(self, n: int = -1) -> AnyStr:
         """
         Read data.
 
-        :param n: Number of bytes to read. If omitted or zero,
+        :param n: Number of bytes to read. If omitted, zero or negative,
             read until end of region.
         :returns: An 8-bit string.
         """
-        if n:
+        if n > 0:
             n = min(n, self.length - self.pos)
         else:
             n = self.length - self.pos
-        if not n:  # EOF
+        if n <= 0:  # EOF
             return b"" if "b" in self.fh.mode else ""  # type: ignore[return-value]
         self.pos = self.pos + n
         return self.fh.read(n)
 
-    def readline(self) -> AnyStr:
+    def readline(self, n: int = -1) -> AnyStr:
         """
         Read a line of text.
 
+        :param n: Number of bytes to read. If omitted, zero or negative,
+            read until end of line.
         :returns: An 8-bit string.
         """
         s: AnyStr = b"" if "b" in self.fh.mode else ""  # type: ignore[assignment]
@@ -102,14 +113,16 @@ class ContainerIO(Generic[AnyStr]):
             if not c:
                 break
             s = s + c
-            if c == newline_character:
+            if c == newline_character or len(s) == n:
                 break
         return s
 
-    def readlines(self) -> list[AnyStr]:
+    def readlines(self, n: int | None = -1) -> list[AnyStr]:
         """
         Read multiple lines of text.
 
+        :param n: Number of lines to read. If omitted, zero, negative or None,
+            read until end of region.
         :returns: A list of 8-bit strings.
         """
         lines = []
@@ -118,4 +131,43 @@ class ContainerIO(Generic[AnyStr]):
             if not s:
                 break
             lines.append(s)
+            if len(lines) == n:
+                break
         return lines
+
+    def writable(self) -> bool:
+        return False
+
+    def write(self, b: AnyStr) -> NoReturn:
+        raise NotImplementedError()
+
+    def writelines(self, lines: Iterable[AnyStr]) -> NoReturn:
+        raise NotImplementedError()
+
+    def truncate(self, size: int | None = None) -> int:
+        raise NotImplementedError()
+
+    def __enter__(self) -> ContainerIO[AnyStr]:
+        return self
+
+    def __exit__(self, *args: object) -> None:
+        self.close()
+
+    def __iter__(self) -> ContainerIO[AnyStr]:
+        return self
+
+    def __next__(self) -> AnyStr:
+        line = self.readline()
+        if not line:
+            msg = "end of region"
+            raise StopIteration(msg)
+        return line
+
+    def fileno(self) -> int:
+        return self.fh.fileno()
+
+    def flush(self) -> None:
+        self.fh.flush()
+
+    def close(self) -> None:
+        self.fh.close()

src/PIL/EpsImagePlugin.py

@@ -65,7 +65,7 @@ def has_ghostscript() -> bool:
     return gs_binary is not False
 
 
-def Ghostscript(tile, size, fp, scale=1, transparency=False):
+def Ghostscript(tile, size, fp, scale=1, transparency: bool = False) -> Image.Image:
     """Render an image using Ghostscript"""
     global gs_binary
     if not has_ghostscript():

src/PIL/IcoImagePlugin.py

@@ -25,7 +25,7 @@ from __future__ import annotations
 import warnings
 from io import BytesIO
 from math import ceil, log
-from typing import IO
+from typing import IO, NamedTuple
 
 from . import BmpImagePlugin, Image, ImageFile, PngImagePlugin
 from ._binary import i16le as i16
@@ -119,8 +119,22 @@ def _accept(prefix: bytes) -> bool:
     return prefix[:4] == _MAGIC
 
 
+class IconHeader(NamedTuple):
+    width: int
+    height: int
+    nb_color: int
+    reserved: int
+    planes: int
+    bpp: int
+    size: int
+    offset: int
+    dim: tuple[int, int]
+    square: int
+    color_depth: int
+
+
 class IcoFile:
-    def __init__(self, buf) -> None:
+    def __init__(self, buf: IO[bytes]) -> None:
         """
         Parse image from file-like object containing ico file data
         """
@@ -141,51 +155,44 @@ class IcoFile:
         for i in range(self.nb_items):
             s = buf.read(16)
 
-            icon_header = {
-                "width": s[0],
-                "height": s[1],
-                "nb_color": s[2],  # No. of colors in image (0 if >=8bpp)
-                "reserved": s[3],
-                "planes": i16(s, 4),
-                "bpp": i16(s, 6),
-                "size": i32(s, 8),
-                "offset": i32(s, 12),
-            }
-
             # See Wikipedia
-            for j in ("width", "height"):
+            width = s[0] or 256
-                if not icon_header[j]:
+            height = s[1] or 256
-                    icon_header[j] = 256
 
-            # See Wikipedia notes about color depth.
+            # No. of colors in image (0 if >=8bpp)
-            # We need this just to differ images with equal sizes
+            nb_color = s[2]
-            icon_header["color_depth"] = (
+            bpp = i16(s, 6)
-                icon_header["bpp"]
+            icon_header = IconHeader(
-                or (
+                width=width,
-                    icon_header["nb_color"] != 0
+                height=height,
-                    and ceil(log(icon_header["nb_color"], 2))
+                nb_color=nb_color,
-                )
+                reserved=s[3],
-                or 256
+                planes=i16(s, 4),
+                bpp=i16(s, 6),
+                size=i32(s, 8),
+                offset=i32(s, 12),
+                dim=(width, height),
+                square=width * height,
+                # See Wikipedia notes about color depth.
+                # We need this just to differ images with equal sizes
+                color_depth=bpp or (nb_color != 0 and ceil(log(nb_color, 2))) or 256,
             )
 
-            icon_header["dim"] = (icon_header["width"], icon_header["height"])
-            icon_header["square"] = icon_header["width"] * icon_header["height"]
-
             self.entry.append(icon_header)
 
-        self.entry = sorted(self.entry, key=lambda x: x["color_depth"])
+        self.entry = sorted(self.entry, key=lambda x: x.color_depth)
         # ICO images are usually squares
-        self.entry = sorted(self.entry, key=lambda x: x["square"], reverse=True)
+        self.entry = sorted(self.entry, key=lambda x: x.square, reverse=True)
 
     def sizes(self) -> set[tuple[int, int]]:
         """
-        Get a list of all available icon sizes and color depths.
+        Get a set of all available icon sizes and color depths.
         """
-        return {(h["width"], h["height"]) for h in self.entry}
+        return {(h.width, h.height) for h in self.entry}
 
     def getentryindex(self, size: tuple[int, int], bpp: int | bool = False) -> int:
         for i, h in enumerate(self.entry):
-            if size == h["dim"] and (bpp is False or bpp == h["color_depth"]):
+            if size == h.dim and (bpp is False or bpp == h.color_depth):
                 return i
         return 0
 
@@ -202,9 +209,9 @@ class IcoFile:
 
         header = self.entry[idx]
 
-        self.buf.seek(header["offset"])
+        self.buf.seek(header.offset)
         data = self.buf.read(8)
-        self.buf.seek(header["offset"])
+        self.buf.seek(header.offset)
 
         im: Image.Image
         if data[:8] == PngImagePlugin._MAGIC:
@@ -222,8 +229,7 @@ class IcoFile:
             im.tile[0] = d, (0, 0) + im.size, o, a
 
             # figure out where AND mask image starts
-            bpp = header["bpp"]
+            if header.bpp == 32:
-            if 32 == bpp:
                 # 32-bit color depth icon image allows semitransparent areas
                 # PIL's DIB format ignores transparency bits, recover them.
                 # The DIB is packed in BGRX byte order where X is the alpha
@@ -253,7 +259,7 @@ class IcoFile:
                 # padded row size * height / bits per char
 
                 total_bytes = int((w * im.size[1]) / 8)
-                and_mask_offset = header["offset"] + header["size"] - total_bytes
+                and_mask_offset = header.offset + header.size - total_bytes
 
                 self.buf.seek(and_mask_offset)
                 mask_data = self.buf.read(total_bytes)
@@ -307,7 +313,7 @@ class IcoImageFile(ImageFile.ImageFile):
     def _open(self) -> None:
         self.ico = IcoFile(self.fp)
         self.info["sizes"] = self.ico.sizes()
-        self.size = self.ico.entry[0]["dim"]
+        self.size = self.ico.entry[0].dim
         self.load()
 
     @property

src/PIL/Image.py

@@ -3286,7 +3286,7 @@ def fromarray(obj: SupportsArrayInterface, mode: str | None = None) -> Image:
     return frombuffer(mode, size, obj, "raw", rawmode, 0, 1)
 
 
-def fromqimage(im):
+def fromqimage(im) -> ImageFile.ImageFile:
     """Creates an image instance from a QImage image"""
     from . import ImageQt
 
@@ -3296,7 +3296,7 @@ def fromqimage(im):
     return ImageQt.fromqimage(im)
 
 
-def fromqpixmap(im):
+def fromqpixmap(im) -> ImageFile.ImageFile:
     """Creates an image instance from a QPixmap image"""
     from . import ImageQt
 
@@ -3867,7 +3867,7 @@ class Exif(_ExifBase):
         # returns a dict with any single item tuples/lists as individual values
         return {k: self._fixup(v) for k, v in src_dict.items()}
 
-    def _get_ifd_dict(self, offset, group=None):
+    def _get_ifd_dict(self, offset: int, group=None):
         try:
             # an offset pointer to the location of the nested embedded IFD.
             # It should be a long, but may be corrupted.
@@ -3881,7 +3881,7 @@ class Exif(_ExifBase):
             info.load(self.fp)
             return self._fixup_dict(info)
 
-    def _get_head(self):
+    def _get_head(self) -> bytes:
         version = b"\x2B" if self.bigtiff else b"\x2A"
         if self.endian == "<":
             head = b"II" + version + b"\x00" + o32le(8)
@@ -4102,16 +4102,16 @@ class Exif(_ExifBase):
             keys.update(self._info)
         return len(keys)
 
-    def __getitem__(self, tag):
+    def __getitem__(self, tag: int):
         if self._info is not None and tag not in self._data and tag in self._info:
             self._data[tag] = self._fixup(self._info[tag])
             del self._info[tag]
         return self._data[tag]
 
-    def __contains__(self, tag) -> bool:
+    def __contains__(self, tag: object) -> bool:
         return tag in self._data or (self._info is not None and tag in self._info)
 
-    def __setitem__(self, tag, value) -> None:
+    def __setitem__(self, tag: int, value) -> None:
         if self._info is not None and tag in self._info:
             del self._info[tag]
         self._data[tag] = value

src/PIL/ImageFile.py

@@ -86,7 +86,7 @@ def raise_oserror(error: int) -> OSError:
     raise _get_oserror(error, encoder=False)
 
 
-def _tilesort(t):
+def _tilesort(t) -> int:
     # sort on offset
     return t[2]
 
@@ -163,7 +163,7 @@ class ImageFile(Image.Image):
             return Image.MIME.get(self.format.upper())
         return None
 
-    def __setstate__(self, state):
+    def __setstate__(self, state) -> None:
         self.tile = []
         super().__setstate__(state)
 
@@ -335,14 +335,14 @@ class ImageFile(Image.Image):
     # def load_read(self, read_bytes: int) -> bytes:
     #     pass
 
-    def _seek_check(self, frame):
+    def _seek_check(self, frame: int) -> bool:
         if (
             frame < self._min_frame
             # Only check upper limit on frames if additional seek operations
             # are not required to do so
             or (
                 not (hasattr(self, "_n_frames") and self._n_frames is None)
-                and frame >= self.n_frames + self._min_frame
+                and frame >= getattr(self, "n_frames") + self._min_frame
             )
         ):
             msg = "attempt to seek outside sequence"
@@ -372,7 +372,7 @@ class StubImageFile(ImageFile):
         msg = "StubImageFile subclass must implement _open"
         raise NotImplementedError(msg)
 
-    def load(self):
+    def load(self) -> Image.core.PixelAccess | None:
         loader = self._load()
         if loader is None:
             msg = f"cannot find loader for this {self.format} file"
@@ -380,7 +380,7 @@ class StubImageFile(ImageFile):
         image = loader.load(self)
         assert image is not None
         # become the other object (!)
-        self.__class__ = image.__class__
+        self.__class__ = image.__class__  # type: ignore[assignment]
         self.__dict__ = image.__dict__
         return image.load()
 
@@ -398,8 +398,8 @@ class Parser:
 
     incremental = None
     image: Image.Image | None = None
-    data = None
+    data: bytes | None = None
-    decoder = None
+    decoder: Image.core.ImagingDecoder | PyDecoder | None = None
     offset = 0
     finished = 0
 
@@ -411,7 +411,7 @@ class Parser:
         """
         assert self.data is None, "cannot reuse parsers"
 
-    def feed(self, data):
+    def feed(self, data: bytes) -> None:
         """
         (Consumer) Feed data to the parser.
 
@@ -493,7 +493,7 @@ class Parser:
     def __exit__(self, *args: object) -> None:
         self.close()
 
-    def close(self):
+    def close(self) -> Image.Image:
         """
         (Consumer) Close the stream.
 
@@ -527,7 +527,7 @@ class Parser:
 # --------------------------------------------------------------------
 
 
-def _save(im, fp, tile, bufsize=0) -> None:
+def _save(im, fp, tile, bufsize: int = 0) -> None:
     """Helper to save image based on tile list
 
     :param im: Image object.
@@ -555,7 +555,9 @@ def _save(im, fp, tile, bufsize=0) -> None:
         fp.flush()
 
 
-def _encode_tile(im, fp, tile: list[_Tile], bufsize, fh, exc=None):
+def _encode_tile(
+    im, fp: IO[bytes], tile: list[_Tile], bufsize: int, fh, exc=None
+) -> None:
     for encoder_name, extents, offset, args in tile:
         if offset > 0:
             fp.seek(offset)
@@ -631,18 +633,18 @@ class PyCodecState:
 class PyCodec:
     fd: IO[bytes] | None
 
-    def __init__(self, mode, *args):
+    def __init__(self, mode: str, *args: Any) -> None:
-        self.im = None
+        self.im: Image.core.ImagingCore | None = None
         self.state = PyCodecState()
         self.fd = None
         self.mode = mode
         self.init(args)
 
-    def init(self, args) -> None:
+    def init(self, args: tuple[Any, ...]) -> None:
         """
         Override to perform codec specific initialization
 
-        :param args: Array of args items from the tile entry
+        :param args: Tuple of arg items from the tile entry
         :returns: None
         """
         self.args = args
@@ -655,7 +657,7 @@ class PyCodec:
         """
         pass
 
-    def setfd(self, fd) -> None:
+    def setfd(self, fd: IO[bytes]) -> None:
         """
         Called from ImageFile to set the Python file-like object
 
@@ -664,7 +666,7 @@ class PyCodec:
         """
         self.fd = fd
 
-    def setimage(self, im, extents: tuple[int, int, int, int] | None = None) -> None:
+    def setimage(self, im, extents=None):
         """
         Called from ImageFile to set the core output image for the codec
 

src/PIL/ImageMath.py

@@ -249,14 +249,21 @@ def lambda_eval(
     :py:func:`~PIL.Image.merge` function.
 
     :param expression: A function that receives a dictionary.
-    :param options: Values to add to the function's dictionary. You
+    :param options: Values to add to the function's dictionary. Deprecated.
-                    can either use a dictionary, or one or more keyword
+                    You can instead use one or more keyword arguments.
-                    arguments.
+    :param **kw: Values to add to the function's dictionary.
     :return: The expression result. This is usually an image object, but can
              also be an integer, a floating point value, or a pixel tuple,
              depending on the expression.
     """
 
+    if options:
+        deprecate(
+            "ImageMath.lambda_eval options",
+            12,
+            "ImageMath.lambda_eval keyword arguments",
+        )
+
     args: dict[str, Any] = ops.copy()
     args.update(options)
     args.update(kw)
@@ -287,14 +294,21 @@ def unsafe_eval(
     :py:func:`~PIL.Image.merge` function.
 
     :param expression: A string containing a Python-style expression.
-    :param options: Values to add to the evaluation context.  You
+    :param options: Values to add to the evaluation context. Deprecated.
-                    can either use a dictionary, or one or more keyword
+                    You can instead use one or more keyword arguments.
-                    arguments.
+    :param **kw: Values to add to the evaluation context.
     :return: The evaluated expression. This is usually an image object, but can
              also be an integer, a floating point value, or a pixel tuple,
              depending on the expression.
     """
 
+    if options:
+        deprecate(
+            "ImageMath.unsafe_eval options",
+            12,
+            "ImageMath.unsafe_eval keyword arguments",
+        )
+
     # build execution namespace
     args: dict[str, Any] = ops.copy()
     for k in list(options.keys()) + list(kw.keys()):

src/PIL/ImageQt.py

@@ -19,11 +19,14 @@ from __future__ import annotations
 
 import sys
 from io import BytesIO
-from typing import Callable
+from typing import TYPE_CHECKING, Callable
 
 from . import Image
 from ._util import is_path
 
+if TYPE_CHECKING:
+    from . import ImageFile
+
 qt_version: str | None
 qt_versions = [
     ["6", "PyQt6"],
@@ -90,11 +93,11 @@ def fromqimage(im):
     return Image.open(b)
 
 
-def fromqpixmap(im):
+def fromqpixmap(im) -> ImageFile.ImageFile:
     return fromqimage(im)
 
 
-def align8to32(bytes, width, mode):
+def align8to32(bytes: bytes, width: int, mode: str) -> bytes:
     """
     converts each scanline of data from 8 bit to 32 bit aligned
     """
@@ -172,7 +175,7 @@ def _toqclass_helper(im):
 if qt_is_installed:
 
     class ImageQt(QImage):
-        def __init__(self, im):
+        def __init__(self, im) -> None:
             """
             An PIL image wrapper for Qt.  This is a subclass of PyQt's QImage
             class.

src/PIL/ImageSequence.py

@@ -33,7 +33,7 @@ class Iterator:
     :param im: An image object.
     """
 
-    def __init__(self, im: Image.Image):
+    def __init__(self, im: Image.Image) -> None:
         if not hasattr(im, "seek"):
             msg = "im must have seek method"
             raise AttributeError(msg)

src/PIL/ImageWin.py

@@ -70,11 +70,14 @@ class Dib:
     """
 
     def __init__(
-        self, image: Image.Image | str, size: tuple[int, int] | list[int] | None = None
+        self, image: Image.Image | str, size: tuple[int, int] | None = None
     ) -> None:
         if isinstance(image, str):
             mode = image
             image = ""
+            if size is None:
+                msg = "If first argument is mode, size is required"
+                raise ValueError(msg)
         else:
             mode = image.mode
             size = image.size
@@ -105,7 +108,12 @@ class Dib:
             result = self.image.expose(handle)
         return result
 
-    def draw(self, handle, dst, src=None):
+    def draw(
+        self,
+        handle,
+        dst: tuple[int, int, int, int],
+        src: tuple[int, int, int, int] | None = None,
+    ):
         """
         Same as expose, but allows you to specify where to draw the image, and
         what part of it to draw.
@@ -115,7 +123,7 @@ class Dib:
         the destination have different sizes, the image is resized as
         necessary.
         """
-        if not src:
+        if src is None:
             src = (0, 0) + self.size
         if isinstance(handle, HWND):
             dc = self.image.getdc(handle)
@@ -202,22 +210,22 @@ class Window:
             title, self.__dispatcher, width or 0, height or 0
         )
 
-    def __dispatcher(self, action, *args):
+    def __dispatcher(self, action: str, *args):
         return getattr(self, f"ui_handle_{action}")(*args)
 
-    def ui_handle_clear(self, dc, x0, y0, x1, y1):
+    def ui_handle_clear(self, dc, x0, y0, x1, y1) -> None:
         pass
 
-    def ui_handle_damage(self, x0, y0, x1, y1):
+    def ui_handle_damage(self, x0, y0, x1, y1) -> None:
         pass
 
     def ui_handle_destroy(self) -> None:
         pass
 
-    def ui_handle_repair(self, dc, x0, y0, x1, y1):
+    def ui_handle_repair(self, dc, x0, y0, x1, y1) -> None:
         pass
 
-    def ui_handle_resize(self, width, height):
+    def ui_handle_resize(self, width, height) -> None:
         pass
 
     def mainloop(self) -> None:
@@ -227,12 +235,12 @@ class Window:
 class ImageWindow(Window):
     """Create an image window which displays the given image."""
 
-    def __init__(self, image, title="PIL"):
+    def __init__(self, image, title: str = "PIL") -> None:
         if not isinstance(image, Dib):
             image = Dib(image)
         self.image = image
         width, height = image.size
         super().__init__(title, width=width, height=height)
 
-    def ui_handle_repair(self, dc, x0, y0, x1, y1):
+    def ui_handle_repair(self, dc, x0, y0, x1, y1) -> None:
         self.image.draw(dc, (x0, y0, x1, y1))

src/PIL/IptcImagePlugin.py

@@ -18,6 +18,7 @@ from __future__ import annotations
 
 from collections.abc import Sequence
 from io import BytesIO
+from typing import cast
 
 from . import Image, ImageFile
 from ._binary import i16be as i16
@@ -184,7 +185,7 @@ Image.register_open(IptcImageFile.format, IptcImageFile)
 Image.register_extension(IptcImageFile.format, ".iim")
 
 
-def getiptcinfo(im):
+def getiptcinfo(im: ImageFile.ImageFile):
     """
     Get IPTC information from TIFF, JPEG, or IPTC file.
 
@@ -221,16 +222,17 @@ def getiptcinfo(im):
     class FakeImage:
         pass
 
-    im = FakeImage()
+    fake_im = FakeImage()
-    im.__class__ = IptcImageFile
+    fake_im.__class__ = IptcImageFile  # type: ignore[assignment]
+    iptc_im = cast(IptcImageFile, fake_im)
 
     # parse the IPTC information chunk
-    im.info = {}
+    iptc_im.info = {}
-    im.fp = BytesIO(data)
+    iptc_im.fp = BytesIO(data)
 
     try:
-        im._open()
+        iptc_im._open()
     except (IndexError, KeyError):
         pass  # expected failure
 
-    return im.info
+    return iptc_im.info

src/PIL/JpegImagePlugin.py

@@ -685,7 +685,11 @@ def _save(im: Image.Image, fp: IO[bytes], filename: str | bytes) -> None:
             raise ValueError(msg)
         subsampling = get_sampling(im)
 
-    def validate_qtables(qtables):
+    def validate_qtables(
+        qtables: (
+            str | tuple[list[int], ...] | list[list[int]] | dict[int, list[int]] | None
+        )
+    ) -> list[list[int]] | None:
         if qtables is None:
             return qtables
         if isinstance(qtables, str):
@@ -715,12 +719,12 @@ def _save(im: Image.Image, fp: IO[bytes], filename: str | bytes) -> None:
                     if len(table) != 64:
                         msg = "Invalid quantization table"
                         raise TypeError(msg)
-                    table = array.array("H", table)
+                    table_array = array.array("H", table)
                 except TypeError as e:
                     msg = "Invalid quantization table"
                     raise ValueError(msg) from e
                 else:
-                    qtables[idx] = list(table)
+                    qtables[idx] = list(table_array)
             return qtables
 
     if qtables == "keep":
@@ -827,11 +831,11 @@ def _save_cjpeg(im: Image.Image, fp: IO[bytes], filename: str | bytes) -> None:
 
 ##
 # Factory for making JPEG and MPO instances
-def jpeg_factory(fp=None, filename=None):
+def jpeg_factory(fp: IO[bytes] | None = None, filename: str | bytes | None = None):
     im = JpegImageFile(fp, filename)
     try:
         mpheader = im._getmp()
-        if mpheader[45057] > 1:
+        if mpheader is not None and mpheader[45057] > 1:
             for segment, content in im.applist:
                 if segment == "APP1" and b' hdrgm:Version="' in content:
                     # Ultra HDR images are not yet supported

src/PIL/PdfImagePlugin.py

@@ -174,12 +174,15 @@ def _write_image(im, filename, existing_pdf, image_refs):
     return image_ref, procset
 
 
-def _save(im, fp, filename, save_all=False):
+def _save(
+    im: Image.Image, fp: IO[bytes], filename: str | bytes, save_all: bool = False
+) -> None:
     is_appending = im.encoderinfo.get("append", False)
+    filename_str = filename.decode() if isinstance(filename, bytes) else filename
     if is_appending:
-        existing_pdf = PdfParser.PdfParser(f=fp, filename=filename, mode="r+b")
+        existing_pdf = PdfParser.PdfParser(f=fp, filename=filename_str, mode="r+b")
     else:
-        existing_pdf = PdfParser.PdfParser(f=fp, filename=filename, mode="w+b")
+        existing_pdf = PdfParser.PdfParser(f=fp, filename=filename_str, mode="w+b")
 
     dpi = im.encoderinfo.get("dpi")
     if dpi:
@@ -228,12 +231,7 @@ def _save(im, fp, filename, save_all=False):
     for im in ims:
         im_number_of_pages = 1
         if save_all:
-            try:
+            im_number_of_pages = getattr(im, "n_frames", 1)
-                im_number_of_pages = im.n_frames
-            except AttributeError:
-                # Image format does not have n_frames.
-                # It is a single frame image
-                pass
         number_of_pages += im_number_of_pages
         for i in range(im_number_of_pages):
             image_refs.append(existing_pdf.next_object_id(0))
@@ -250,7 +248,9 @@ def _save(im, fp, filename, save_all=False):
 
     page_number = 0
     for im_sequence in ims:
-        im_pages = ImageSequence.Iterator(im_sequence) if save_all else [im_sequence]
+        im_pages: ImageSequence.Iterator | list[Image.Image] = (
+            ImageSequence.Iterator(im_sequence) if save_all else [im_sequence]
+        )
         for im in im_pages:
             image_ref, procset = _write_image(im, filename, existing_pdf, image_refs)
 

src/PIL/PngImagePlugin.py

@@ -39,7 +39,7 @@ import struct
 import warnings
 import zlib
 from enum import IntEnum
-from typing import IO, TYPE_CHECKING, Any, NoReturn
+from typing import IO, TYPE_CHECKING, Any, NamedTuple, NoReturn
 
 from . import Image, ImageChops, ImageFile, ImagePalette, ImageSequence
 from ._binary import i16be as i16
@@ -144,7 +144,7 @@ def _safe_zlib_decompress(s):
     return plaintext
 
 
-def _crc32(data, seed=0):
+def _crc32(data: bytes, seed: int = 0) -> int:
     return zlib.crc32(data, seed) & 0xFFFFFFFF
 
 
@@ -191,7 +191,7 @@ class ChunkStream:
         assert self.queue is not None
         self.queue.append((cid, pos, length))
 
-    def call(self, cid, pos, length):
+    def call(self, cid: bytes, pos: int, length: int) -> bytes:
         """Call the appropriate chunk handler"""
 
         logger.debug("STREAM %r %s %s", cid, pos, length)
@@ -1091,21 +1091,21 @@ _OUTMODES = {
 }
 
 
-def putchunk(fp, cid, *data):
+def putchunk(fp: IO[bytes], cid: bytes, *data: bytes) -> None:
     """Write a PNG chunk (including CRC field)"""
 
-    data = b"".join(data)
+    byte_data = b"".join(data)
 
-    fp.write(o32(len(data)) + cid)
+    fp.write(o32(len(byte_data)) + cid)
-    fp.write(data)
+    fp.write(byte_data)
-    crc = _crc32(data, _crc32(cid))
+    crc = _crc32(byte_data, _crc32(cid))
     fp.write(o32(crc))
 
 
 class _idat:
     # wrap output from the encoder in IDAT chunks
 
-    def __init__(self, fp, chunk):
+    def __init__(self, fp, chunk) -> None:
         self.fp = fp
         self.chunk = chunk
 
@@ -1116,7 +1116,7 @@ class _idat:
 class _fdat:
     # wrap encoder output in fdAT chunks
 
-    def __init__(self, fp, chunk, seq_num):
+    def __init__(self, fp: IO[bytes], chunk, seq_num: int) -> None:
         self.fp = fp
         self.chunk = chunk
         self.seq_num = seq_num
@@ -1126,7 +1126,21 @@ class _fdat:
         self.seq_num += 1
 
 
-def _write_multiple_frames(im, fp, chunk, mode, rawmode, default_image, append_images):
+class _Frame(NamedTuple):
+    im: Image.Image
+    bbox: tuple[int, int, int, int] | None
+    encoderinfo: dict[str, Any]
+
+
+def _write_multiple_frames(
+    im: Image.Image,
+    fp: IO[bytes],
+    chunk,
+    mode: str,
+    rawmode: str,
+    default_image: Image.Image | None,
+    append_images: list[Image.Image],
+) -> Image.Image | None:
     duration = im.encoderinfo.get("duration")
     loop = im.encoderinfo.get("loop", im.info.get("loop", 0))
     disposal = im.encoderinfo.get("disposal", im.info.get("disposal", Disposal.OP_NONE))
@@ -1137,7 +1151,7 @@ def _write_multiple_frames(im, fp, chunk, mode, rawmode, default_image, append_i
     else:
         chain = itertools.chain([im], append_images)
 
-    im_frames = []
+    im_frames: list[_Frame] = []
     frame_count = 0
     for im_seq in chain:
         for im_frame in ImageSequence.Iterator(im_seq):
@@ -1158,24 +1172,24 @@ def _write_multiple_frames(im, fp, chunk, mode, rawmode, default_image, append_i
 
             if im_frames:
                 previous = im_frames[-1]
-                prev_disposal = previous["encoderinfo"].get("disposal")
+                prev_disposal = previous.encoderinfo.get("disposal")
-                prev_blend = previous["encoderinfo"].get("blend")
+                prev_blend = previous.encoderinfo.get("blend")
                 if prev_disposal == Disposal.OP_PREVIOUS and len(im_frames) < 2:
                     prev_disposal = Disposal.OP_BACKGROUND
 
                 if prev_disposal == Disposal.OP_BACKGROUND:
-                    base_im = previous["im"].copy()
+                    base_im = previous.im.copy()
                     dispose = Image.core.fill("RGBA", im.size, (0, 0, 0, 0))
-                    bbox = previous["bbox"]
+                    bbox = previous.bbox
                     if bbox:
                         dispose = dispose.crop(bbox)
                     else:
                         bbox = (0, 0) + im.size
                     base_im.paste(dispose, bbox)
                 elif prev_disposal == Disposal.OP_PREVIOUS:
-                    base_im = im_frames[-2]["im"]
+                    base_im = im_frames[-2].im
                 else:
-                    base_im = previous["im"]
+                    base_im = previous.im
                 delta = ImageChops.subtract_modulo(
                     im_frame.convert("RGBA"), base_im.convert("RGBA")
                 )
@@ -1186,14 +1200,14 @@ def _write_multiple_frames(im, fp, chunk, mode, rawmode, default_image, append_i
                     and prev_blend == encoderinfo.get("blend")
                     and "duration" in encoderinfo
                 ):
-                    previous["encoderinfo"]["duration"] += encoderinfo["duration"]
+                    previous.encoderinfo["duration"] += encoderinfo["duration"]
                     continue
             else:
                 bbox = None
-            im_frames.append({"im": im_frame, "bbox": bbox, "encoderinfo": encoderinfo})
+            im_frames.append(_Frame(im_frame, bbox, encoderinfo))
 
     if len(im_frames) == 1 and not default_image:
-        return im_frames[0]["im"]
+        return im_frames[0].im
 
     # animation control
     chunk(
@@ -1211,14 +1225,14 @@ def _write_multiple_frames(im, fp, chunk, mode, rawmode, default_image, append_i
 
     seq_num = 0
     for frame, frame_data in enumerate(im_frames):
-        im_frame = frame_data["im"]
+        im_frame = frame_data.im
-        if not frame_data["bbox"]:
+        if not frame_data.bbox:
             bbox = (0, 0) + im_frame.size
         else:
-            bbox = frame_data["bbox"]
+            bbox = frame_data.bbox
             im_frame = im_frame.crop(bbox)
         size = im_frame.size
-        encoderinfo = frame_data["encoderinfo"]
+        encoderinfo = frame_data.encoderinfo
         frame_duration = int(round(encoderinfo.get("duration", 0)))
         frame_disposal = encoderinfo.get("disposal", disposal)
         frame_blend = encoderinfo.get("blend", blend)
@@ -1253,13 +1267,16 @@ def _write_multiple_frames(im, fp, chunk, mode, rawmode, default_image, append_i
                 [("zip", (0, 0) + im_frame.size, 0, rawmode)],
             )
             seq_num = fdat_chunks.seq_num
+    return None
 
 
 def _save_all(im: Image.Image, fp: IO[bytes], filename: str | bytes) -> None:
     _save(im, fp, filename, save_all=True)
 
 
-def _save(im, fp, filename, chunk=putchunk, save_all=False):
+def _save(
+    im: Image.Image, fp, filename: str | bytes, chunk=putchunk, save_all: bool = False
+) -> None:
     # save an image to disk (called by the save method)
 
     if save_all:
@@ -1435,12 +1452,15 @@ def _save(im, fp, filename, chunk=putchunk, save_all=False):
             exif = exif[6:]
         chunk(fp, b"eXIf", exif)
 
+    single_im: Image.Image | None = im
     if save_all:
-        im = _write_multiple_frames(
+        single_im = _write_multiple_frames(
             im, fp, chunk, mode, rawmode, default_image, append_images
         )
-    if im:
+    if single_im:
-        ImageFile._save(im, _idat(fp, chunk), [("zip", (0, 0) + im.size, 0, rawmode)])
+        ImageFile._save(
+            single_im, _idat(fp, chunk), [("zip", (0, 0) + single_im.size, 0, rawmode)]
+        )
 
     if info:
         for info_chunk in info.chunks:
@@ -1461,7 +1481,7 @@ def _save(im, fp, filename, chunk=putchunk, save_all=False):
 # PNG chunk converter
 
 
-def getchunks(im, **params):
+def getchunks(im: Image.Image, **params: Any) -> list[tuple[bytes, bytes, bytes]]:
     """Return a list of PNG chunks representing this image."""
 
     class collector:
@@ -1470,19 +1490,19 @@ def getchunks(im, **params):
         def write(self, data: bytes) -> None:
             pass
 
-        def append(self, chunk: bytes) -> None:
+        def append(self, chunk: tuple[bytes, bytes, bytes]) -> None:
             self.data.append(chunk)
 
-    def append(fp, cid, *data):
+    def append(fp: collector, cid: bytes, *data: bytes) -> None:
-        data = b"".join(data)
+        byte_data = b"".join(data)
-        crc = o32(_crc32(data, _crc32(cid)))
+        crc = o32(_crc32(byte_data, _crc32(cid)))
-        fp.append((cid, data, crc))
+        fp.append((cid, byte_data, crc))
 
     fp = collector()
 
     try:
         im.encoderinfo = params
-        _save(im, fp, None, append)
+        _save(im, fp, "", append)
     finally:
         del im.encoderinfo
 

src/PIL/TarIO.py

@@ -55,13 +55,3 @@ class TarIO(ContainerIO.ContainerIO[bytes]):
 
         # Open region
         super().__init__(self.fh, self.fh.tell(), size)
-
-    # Context manager support
-    def __enter__(self) -> TarIO:
-        return self
-
-    def __exit__(self, *args: object) -> None:
-        self.close()
-
-    def close(self) -> None:
-        self.fh.close()

src/PIL/TiffImagePlugin.py

@@ -380,12 +380,13 @@ class IFDRational(Rational):
 
     __slots__ = ("_numerator", "_denominator", "_val")
 
-    def __init__(self, value, denominator=1):
+    def __init__(self, value, denominator: int = 1) -> None:
         """
         :param value: either an integer numerator, a
         float/rational/other number, or an IFDRational
         :param denominator: Optional integer denominator
         """
+        self._val: Fraction | float
         if isinstance(value, IFDRational):
             self._numerator = value.numerator
             self._denominator = value.denominator
@@ -682,13 +683,13 @@ class ImageFileDirectory_v2(_IFDv2Base):
             val = (val,)
         return val
 
-    def __contains__(self, tag):
+    def __contains__(self, tag: object) -> bool:
         return tag in self._tags_v2 or tag in self._tagdata
 
-    def __setitem__(self, tag, value):
+    def __setitem__(self, tag, value) -> None:
         self._setitem(tag, value, self.legacy_api)
 
-    def _setitem(self, tag, value, legacy_api):
+    def _setitem(self, tag, value, legacy_api) -> None:
         basetypes = (Number, bytes, str)
 
         info = TiffTags.lookup(tag, self.group)
@@ -804,7 +805,7 @@ class ImageFileDirectory_v2(_IFDv2Base):
         return data
 
     @_register_writer(1)  # Basic type, except for the legacy API.
-    def write_byte(self, data):
+    def write_byte(self, data) -> bytes:
         if isinstance(data, IFDRational):
             data = int(data)
         if isinstance(data, int):
@@ -818,7 +819,7 @@ class ImageFileDirectory_v2(_IFDv2Base):
         return data.decode("latin-1", "replace")
 
     @_register_writer(2)
-    def write_string(self, value):
+    def write_string(self, value) -> bytes:
         # remerge of https://github.com/python-pillow/Pillow/pull/1416
         if isinstance(value, int):
             value = str(value)
@@ -836,7 +837,7 @@ class ImageFileDirectory_v2(_IFDv2Base):
         return tuple(combine(num, denom) for num, denom in zip(vals[::2], vals[1::2]))
 
     @_register_writer(5)
-    def write_rational(self, *values):
+    def write_rational(self, *values) -> bytes:
         return b"".join(
             self._pack("2L", *_limit_rational(frac, 2**32 - 1)) for frac in values
         )
@@ -846,7 +847,7 @@ class ImageFileDirectory_v2(_IFDv2Base):
         return data
 
     @_register_writer(7)
-    def write_undefined(self, value):
+    def write_undefined(self, value) -> bytes:
         if isinstance(value, IFDRational):
             value = int(value)
         if isinstance(value, int):
@@ -863,13 +864,13 @@ class ImageFileDirectory_v2(_IFDv2Base):
         return tuple(combine(num, denom) for num, denom in zip(vals[::2], vals[1::2]))
 
     @_register_writer(10)
-    def write_signed_rational(self, *values):
+    def write_signed_rational(self, *values) -> bytes:
         return b"".join(
             self._pack("2l", *_limit_signed_rational(frac, 2**31 - 1, -(2**31)))
             for frac in values
         )
 
-    def _ensure_read(self, fp, size):
+    def _ensure_read(self, fp: IO[bytes], size: int) -> bytes:
         ret = fp.read(size)
         if len(ret) != size:
             msg = (
@@ -1023,7 +1024,7 @@ class ImageFileDirectory_v2(_IFDv2Base):
 
         return result
 
-    def save(self, fp):
+    def save(self, fp: IO[bytes]) -> int:
         if fp.tell() == 0:  # skip TIFF header on subsequent pages
             # tiff header -- PIL always starts the first IFD at offset 8
             fp.write(self._prefix + self._pack("HL", 42, 8))
@@ -1063,7 +1064,7 @@ class ImageFileDirectory_v1(ImageFileDirectory_v2):
     ..  deprecated:: 3.0.0
     """
 
-    def __init__(self, *args, **kwargs):
+    def __init__(self, *args, **kwargs) -> None:
         super().__init__(*args, **kwargs)
         self._legacy_api = True
 
@@ -1075,7 +1076,7 @@ class ImageFileDirectory_v1(ImageFileDirectory_v2):
     """Dictionary of tag types"""
 
     @classmethod
-    def from_v2(cls, original):
+    def from_v2(cls, original) -> ImageFileDirectory_v1:
         """Returns an
         :py:class:`~PIL.TiffImagePlugin.ImageFileDirectory_v1`
         instance with the same data as is contained in the original
@@ -1109,7 +1110,7 @@ class ImageFileDirectory_v1(ImageFileDirectory_v2):
         ifd._tags_v2 = dict(self._tags_v2)
         return ifd
 
-    def __contains__(self, tag):
+    def __contains__(self, tag: object) -> bool:
         return tag in self._tags_v1 or tag in self._tagdata
 
     def __len__(self) -> int:
@@ -1118,7 +1119,7 @@ class ImageFileDirectory_v1(ImageFileDirectory_v2):
     def __iter__(self):
         return iter(set(self._tagdata) | set(self._tags_v1))
 
-    def __setitem__(self, tag, value):
+    def __setitem__(self, tag, value) -> None:
         for legacy_api in (False, True):
             self._setitem(tag, value, legacy_api)
 
@@ -1168,7 +1169,7 @@ class TiffImageFile(ImageFile.ImageFile):
         self.tag_v2 = ImageFileDirectory_v2(ifh)
 
         # legacy IFD entries will be filled in later
-        self.ifd = None
+        self.ifd: ImageFileDirectory_v1 | None = None
 
         # setup frame pointers
         self.__first = self.__next = self.tag_v2.next
@@ -1389,7 +1390,7 @@ class TiffImageFile(ImageFile.ImageFile):
 
         return Image.Image.load(self)
 
-    def _setup(self):
+    def _setup(self) -> None:
         """Setup this image object based on current tags"""
 
         if 0xBC01 in self.tag_v2:
@@ -1578,13 +1579,13 @@ class TiffImageFile(ImageFile.ImageFile):
                     # adjust stride width accordingly
                     stride /= bps_count
 
-                a = (tile_rawmode, int(stride), 1)
+                args = (tile_rawmode, int(stride), 1)
                 self.tile.append(
                     (
                         self._compression,
                         (x, y, min(x + w, xsize), min(y + h, ysize)),
                         offset,
-                        a,
+                        args,
                     )
                 )
                 x = x + w
@@ -1979,7 +1980,7 @@ class AppendingTiffWriter:
         521,  # JPEGACTables
     }
 
-    def __init__(self, fn, new=False):
+    def __init__(self, fn, new: bool = False) -> None:
         if hasattr(fn, "read"):
             self.f = fn
             self.close_fp = False
@@ -2056,7 +2057,7 @@ class AppendingTiffWriter:
     def tell(self) -> int:
         return self.f.tell() - self.offsetOfNewPage
 
-    def seek(self, offset, whence=io.SEEK_SET):
+    def seek(self, offset: int, whence=io.SEEK_SET) -> int:
         if whence == os.SEEK_SET:
             offset += self.offsetOfNewPage
 

src/PIL/WalImageFile.py

@@ -24,8 +24,11 @@ and has been tested with a few sample files found using google.
 """
 from __future__ import annotations
 
+from typing import IO
+
 from . import Image, ImageFile
 from ._binary import i32le as i32
+from ._typing import StrOrBytesPath
 
 
 class WalImageFile(ImageFile.ImageFile):
@@ -58,7 +61,7 @@ class WalImageFile(ImageFile.ImageFile):
         return Image.Image.load(self)
 
 
-def open(filename):
+def open(filename: StrOrBytesPath | IO[bytes]) -> WalImageFile:
     """
     Load texture from a Quake2 WAL texture file.
 

src/Tk/_tkmini.h

@@ -80,7 +80,8 @@ typedef struct Tcl_Command_ *Tcl_Command;
 typedef void *ClientData;
 
 typedef int(Tcl_CmdProc)(
-    ClientData clientData, Tcl_Interp *interp, int argc, const char *argv[]);
+    ClientData clientData, Tcl_Interp *interp, int argc, const char *argv[]
+);
 typedef void(Tcl_CmdDeleteProc)(ClientData clientData);
 
 /* Typedefs derived from function signatures in Tcl header */
@@ -90,7 +91,8 @@ typedef Tcl_Command (*Tcl_CreateCommand_t)(
     const char *cmdName,
     Tcl_CmdProc *proc,
     ClientData clientData,
-    Tcl_CmdDeleteProc *deleteProc);
+    Tcl_CmdDeleteProc *deleteProc
+);
 /* Tcl_AppendResult */
 typedef void (*Tcl_AppendResult_t)(Tcl_Interp *interp, ...);
 
@@ -127,7 +129,8 @@ typedef int (*Tk_PhotoPutBlock_t)(
     int y,
     int width,
     int height,
-    int compRule);
+    int compRule
+);
 /* Tk_FindPhoto */
 typedef Tk_PhotoHandle (*Tk_FindPhoto_t)(Tcl_Interp *interp, const char *imageName);
 /* Tk_PhotoGetImage */

src/Tk/tkImaging.c

@@ -73,14 +73,16 @@ ImagingFind(const char *name) {
 
 static int
 PyImagingPhotoPut(
-    ClientData clientdata, Tcl_Interp *interp, int argc, const char **argv) {
+    ClientData clientdata, Tcl_Interp *interp, int argc, const char **argv
+) {
     Imaging im;
     Tk_PhotoHandle photo;
     Tk_PhotoImageBlock block;
 
     if (argc != 3) {
         TCL_APPEND_RESULT(
-            interp, "usage: ", argv[0], " destPhoto srcImage", (char *)NULL);
+            interp, "usage: ", argv[0], " destPhoto srcImage", (char *)NULL
+        );
         return TCL_ERROR;
     }
 
@@ -128,14 +130,16 @@ PyImagingPhotoPut(
     block.pixelPtr = (unsigned char *)im->block;
 
     TK_PHOTO_PUT_BLOCK(
-        interp, photo, &block, 0, 0, block.width, block.height, TK_PHOTO_COMPOSITE_SET);
+        interp, photo, &block, 0, 0, block.width, block.height, TK_PHOTO_COMPOSITE_SET
+    );
 
     return TCL_OK;
 }
 
 static int
 PyImagingPhotoGet(
-    ClientData clientdata, Tcl_Interp *interp, int argc, const char **argv) {
+    ClientData clientdata, Tcl_Interp *interp, int argc, const char **argv
+) {
     Imaging im;
     Tk_PhotoHandle photo;
     Tk_PhotoImageBlock block;
@@ -143,7 +147,8 @@ PyImagingPhotoGet(
 
     if (argc != 3) {
         TCL_APPEND_RESULT(
-            interp, "usage: ", argv[0], " srcPhoto destImage", (char *)NULL);
+            interp, "usage: ", argv[0], " srcPhoto destImage", (char *)NULL
+        );
         return TCL_ERROR;
     }
 
@@ -183,13 +188,15 @@ TkImaging_Init(Tcl_Interp *interp) {
         "PyImagingPhoto",
         PyImagingPhotoPut,
         (ClientData)0,
-        (Tcl_CmdDeleteProc *)NULL);
+        (Tcl_CmdDeleteProc *)NULL
+    );
     TCL_CREATE_COMMAND(
         interp,
         "PyImagingPhotoGet",
         PyImagingPhotoGet,
         (ClientData)0,
-        (Tcl_CmdDeleteProc *)NULL);
+        (Tcl_CmdDeleteProc *)NULL
+    );
 }
 
 /*
@@ -394,7 +401,8 @@ _func_loader(void *lib) {
     }
     return (
         (TK_PHOTO_PUT_BLOCK = (Tk_PhotoPutBlock_t)_dfunc(lib, "Tk_PhotoPutBlock")) ==
-        NULL);
+        NULL
+    );
 }
 
 int

src/_imaging.c

@@ -290,7 +290,8 @@ ImagingError_ModeError(void) {
 void *
 ImagingError_ValueError(const char *message) {
     PyErr_SetString(
-        PyExc_ValueError, (message) ? (char *)message : "unrecognized argument value");
+        PyExc_ValueError, (message) ? (char *)message : "unrecognized argument value"
+    );
     return NULL;
 }
 
@@ -501,7 +502,8 @@ getpixel(Imaging im, ImagingAccess access, int x, int y) {
                     return Py_BuildValue("BBB", pixel.b[0], pixel.b[1], pixel.b[2]);
                 case 4:
                     return Py_BuildValue(
-                        "BBBB", pixel.b[0], pixel.b[1], pixel.b[2], pixel.b[3]);
+                        "BBBB", pixel.b[0], pixel.b[1], pixel.b[2], pixel.b[3]
+                    );
             }
             break;
         case IMAGING_TYPE_INT32:
@@ -552,7 +554,8 @@ getink(PyObject *color, Imaging im, char *ink) {
             rIsInt = 1;
         } else if (im->bands == 1) {
             PyErr_SetString(
-                PyExc_TypeError, "color must be int or single-element tuple");
+                PyExc_TypeError, "color must be int or single-element tuple"
+            );
             return NULL;
         } else if (tupleSize == -1) {
             PyErr_SetString(PyExc_TypeError, "color must be int or tuple");
@@ -568,8 +571,8 @@ getink(PyObject *color, Imaging im, char *ink) {
                 if (rIsInt != 1) {
                     if (tupleSize != 1) {
                         PyErr_SetString(
-                            PyExc_TypeError,
+                            PyExc_TypeError, "color must be int or single-element tuple"
-                            "color must be int or single-element tuple");
+                        );
                         return NULL;
                     } else if (!PyArg_ParseTuple(color, "L", &r)) {
                         return NULL;
@@ -590,7 +593,8 @@ getink(PyObject *color, Imaging im, char *ink) {
                         if (tupleSize != 1 && tupleSize != 2) {
                             PyErr_SetString(
                                 PyExc_TypeError,
-                                "color must be int, or tuple of one or two elements");
+                                "color must be int, or tuple of one or two elements"
+                            );
                             return NULL;
                         } else if (!PyArg_ParseTuple(color, "L|i", &r, &a)) {
                             return NULL;
@@ -601,7 +605,8 @@ getink(PyObject *color, Imaging im, char *ink) {
                             PyErr_SetString(
                                 PyExc_TypeError,
                                 "color must be int, or tuple of one, three or four "
-                                "elements");
+                                "elements"
+                            );
                             return NULL;
                         } else if (!PyArg_ParseTuple(color, "Lii|i", &r, &g, &b, &a)) {
                             return NULL;
@@ -642,7 +647,8 @@ getink(PyObject *color, Imaging im, char *ink) {
                 } else if (tupleSize != 3) {
                     PyErr_SetString(
                         PyExc_TypeError,
-                        "color must be int, or tuple of one or three elements");
+                        "color must be int, or tuple of one or three elements"
+                    );
                     return NULL;
                 } else if (!PyArg_ParseTuple(color, "iiL", &b, &g, &r)) {
                     return NULL;
@@ -768,7 +774,8 @@ _alpha_composite(ImagingObject *self, PyObject *args) {
     ImagingObject *imagep2;
 
     if (!PyArg_ParseTuple(
-            args, "O!O!", &Imaging_Type, &imagep1, &Imaging_Type, &imagep2)) {
+            args, "O!O!", &Imaging_Type, &imagep1, &Imaging_Type, &imagep2
+        )) {
         return NULL;
     }
 
@@ -783,7 +790,8 @@ _blend(ImagingObject *self, PyObject *args) {
 
     alpha = 0.5;
     if (!PyArg_ParseTuple(
-            args, "O!O!|d", &Imaging_Type, &imagep1, &Imaging_Type, &imagep2, &alpha)) {
+            args, "O!O!|d", &Imaging_Type, &imagep1, &Imaging_Type, &imagep2, &alpha
+        )) {
         return NULL;
     }
 
@@ -862,7 +870,8 @@ _prepare_lut_table(PyObject *table, Py_ssize_t table_size) {
                 break;
             case TYPE_FLOAT32:
                 memcpy(
-                    &item, ((char *)table_data) + i * sizeof(FLOAT32), sizeof(FLOAT32));
+                    &item, ((char *)table_data) + i * sizeof(FLOAT32), sizeof(FLOAT32)
+                );
                 break;
             case TYPE_DOUBLE:
                 memcpy(&dtmp, ((char *)table_data) + i * sizeof(dtmp), sizeof(dtmp));
@@ -913,7 +922,8 @@ _color_lut_3d(ImagingObject *self, PyObject *args) {
             &size1D,
             &size2D,
             &size3D,
-            &table)) {
+            &table
+        )) {
         return NULL;
     }
 
@@ -931,7 +941,8 @@ _color_lut_3d(ImagingObject *self, PyObject *args) {
     if (2 > size1D || size1D > 65 || 2 > size2D || size2D > 65 || 2 > size3D ||
         size3D > 65) {
         PyErr_SetString(
-            PyExc_ValueError, "Table size in any dimension should be from 2 to 65");
+            PyExc_ValueError, "Table size in any dimension should be from 2 to 65"
+        );
         return NULL;
     }
 
@@ -949,13 +960,8 @@ _color_lut_3d(ImagingObject *self, PyObject *args) {
     }
 
     if (!ImagingColorLUT3D_linear(
-            imOut,
+            imOut, self->image, table_channels, size1D, size2D, size3D, prepared_table
-            self->image,
+        )) {
-            table_channels,
-            size1D,
-            size2D,
-            size3D,
-            prepared_table)) {
         free(prepared_table);
         ImagingDelete(imOut);
         return NULL;
@@ -979,7 +985,8 @@ _convert(ImagingObject *self, PyObject *args) {
         if (!PyImaging_Check(paletteimage)) {
             PyObject_Print((PyObject *)paletteimage, stderr, 0);
             PyErr_SetString(
-                PyExc_ValueError, "palette argument must be image with mode 'P'");
+                PyExc_ValueError, "palette argument must be image with mode 'P'"
+            );
             return NULL;
         }
         if (paletteimage->image->palette == NULL) {
@@ -989,7 +996,8 @@ _convert(ImagingObject *self, PyObject *args) {
     }
 
     return PyImagingNew(ImagingConvert(
-        self->image, mode, paletteimage ? paletteimage->image->palette : NULL, dither));
+        self->image, mode, paletteimage ? paletteimage->image->palette : NULL, dither
+    ));
 }
 
 static PyObject *
@@ -997,7 +1005,8 @@ _convert2(ImagingObject *self, PyObject *args) {
     ImagingObject *imagep1;
     ImagingObject *imagep2;
     if (!PyArg_ParseTuple(
-            args, "O!O!", &Imaging_Type, &imagep1, &Imaging_Type, &imagep2)) {
+            args, "O!O!", &Imaging_Type, &imagep1, &Imaging_Type, &imagep2
+        )) {
         return NULL;
     }
 
@@ -1030,7 +1039,8 @@ _convert_matrix(ImagingObject *self, PyObject *args) {
                 m + 8,
                 m + 9,
                 m + 10,
-                m + 11)) {
+                m + 11
+            )) {
             return NULL;
         }
     }
@@ -1091,7 +1101,8 @@ _filter(ImagingObject *self, PyObject *args) {
     float divisor, offset;
     PyObject *kernel = NULL;
     if (!PyArg_ParseTuple(
-            args, "(ii)ffO", &xsize, &ysize, &divisor, &offset, &kernel)) {
+            args, "(ii)ffO", &xsize, &ysize, &divisor, &offset, &kernel
+        )) {
         return NULL;
     }
 
@@ -1174,7 +1185,8 @@ _getpalette(ImagingObject *self, PyObject *args) {
     }
 
     pack(
-        (UINT8 *)PyBytes_AsString(palette), self->image->palette->palette, palettesize);
+        (UINT8 *)PyBytes_AsString(palette), self->image->palette->palette, palettesize
+    );
 
     return palette;
 }
@@ -1268,7 +1280,8 @@ union hist_extrema {
 
 static union hist_extrema *
 parse_histogram_extremap(
-    ImagingObject *self, PyObject *extremap, union hist_extrema *ep) {
+    ImagingObject *self, PyObject *extremap, union hist_extrema *ep
+) {
     int i0, i1;
     double f0, f1;
 
@@ -1428,7 +1441,8 @@ _paste(ImagingObject *self, PyObject *args) {
     int x0, y0, x1, y1;
     ImagingObject *maskp = NULL;
     if (!PyArg_ParseTuple(
-            args, "O(iiii)|O!", &source, &x0, &y0, &x1, &y1, &Imaging_Type, &maskp)) {
+            args, "O(iiii)|O!", &source, &x0, &y0, &x1, &y1, &Imaging_Type, &maskp
+        )) {
         return NULL;
     }
 
@@ -1440,14 +1454,16 @@ _paste(ImagingObject *self, PyObject *args) {
             x0,
             y0,
             x1,
-            y1);
+            y1
+        );
 
     } else {
         if (!getink(source, self->image, ink)) {
             return NULL;
         }
         status = ImagingFill2(
-            self->image, ink, (maskp) ? maskp->image : NULL, x0, y0, x1, y1);
+            self->image, ink, (maskp) ? maskp->image : NULL, x0, y0, x1, y1
+        );
     }
 
     if (status < 0) {
@@ -1766,7 +1782,8 @@ _putpalette(ImagingObject *self, PyObject *args) {
     UINT8 *palette;
     Py_ssize_t palettesize;
     if (!PyArg_ParseTuple(
-            args, "ssy#", &palette_mode, &rawmode, &palette, &palettesize)) {
+            args, "ssy#", &palette_mode, &rawmode, &palette, &palettesize
+        )) {
         return NULL;
     }
 
@@ -1924,7 +1941,8 @@ _resize(ImagingObject *self, PyObject *args) {
             &box[0],
             &box[1],
             &box[2],
-            &box[3])) {
+            &box[3]
+        )) {
         return NULL;
     }
 
@@ -1960,7 +1978,8 @@ _resize(ImagingObject *self, PyObject *args) {
         imOut = ImagingNewDirty(imIn->mode, (ImagingNewParams){xsize, ysize});
 
         imOut = ImagingTransform(
-            imOut, imIn, IMAGING_TRANSFORM_AFFINE, 0, 0, xsize, ysize, a, filter, 1);
+            imOut, imIn, IMAGING_TRANSFORM_AFFINE, 0, 0, xsize, ysize, a, filter, 1
+        );
     } else {
         imOut = ImagingResample(imIn, xsize, ysize, filter, box);
     }
@@ -1981,14 +2000,8 @@ _reduce(ImagingObject *self, PyObject *args) {
     box[3] = imIn->ysize;
 
     if (!PyArg_ParseTuple(
-            args,
+            args, "(ii)|(iiii)", &xscale, &yscale, &box[0], &box[1], &box[2], &box[3]
-            "(ii)|(iiii)",
+        )) {
-            &xscale,
-            &yscale,
-            &box[0],
-            &box[1],
-            &box[2],
-            &box[3])) {
         return NULL;
     }
 
@@ -2090,7 +2103,8 @@ _transform(ImagingObject *self, PyObject *args) {
             &method,
             &data,
             &filter,
-            &fill)) {
+            &fill
+        )) {
         return NULL;
     }
 
@@ -2114,7 +2128,8 @@ _transform(ImagingObject *self, PyObject *args) {
     }
 
     imOut = ImagingTransform(
-        self->image, imagep->image, method, x0, y0, x1, y1, a, filter, fill);
+        self->image, imagep->image, method, x0, y0, x1, y1, a, filter, fill
+    );
 
     free(a);
 
@@ -2291,7 +2306,13 @@ _getcolors(ImagingObject *self, PyObject *args) {
         for (i = 0; i < colors; i++) {
             ImagingColorItem *v = &items[i];
             PyObject *item = Py_BuildValue(
-                "iN", v->count, getpixel(self->image, self->access, v->x, v->y));
+                "iN", v->count, getpixel(self->image, self->access, v->x, v->y)
+            );
+            if (item == NULL) {
+                Py_DECREF(out);
+                free(items);
+                return NULL;
+            }
             PyList_SetItem(out, i, item);
         }
     }
@@ -2352,14 +2373,16 @@ _getprojection(ImagingObject *self) {
     }
 
     ImagingGetProjection(
-        self->image, (unsigned char *)xprofile, (unsigned char *)yprofile);
+        self->image, (unsigned char *)xprofile, (unsigned char *)yprofile
+    );
 
     result = Py_BuildValue(
         "y#y#",
         xprofile,
         (Py_ssize_t)self->image->xsize,
         yprofile,
-        (Py_ssize_t)self->image->ysize);
+        (Py_ssize_t)self->image->ysize
+    );
 
     free(xprofile);
     free(yprofile);
@@ -2433,7 +2456,8 @@ _merge(PyObject *self, PyObject *args) {
             &Imaging_Type,
             &band2,
             &Imaging_Type,
-            &band3)) {
+            &band3
+        )) {
         return NULL;
     }
 
@@ -2679,7 +2703,8 @@ _font_new(PyObject *self_, PyObject *args) {
     unsigned char *glyphdata;
     Py_ssize_t glyphdata_length;
     if (!PyArg_ParseTuple(
-            args, "O!y#", &Imaging_Type, &imagep, &glyphdata, &glyphdata_length)) {
+            args, "O!y#", &Imaging_Type, &imagep, &glyphdata, &glyphdata_length
+        )) {
         return NULL;
     }
 
@@ -2838,7 +2863,8 @@ _font_getmask(ImagingFontObject *self, PyObject *args) {
         if (i == 0 || text[i] != text[i - 1]) {
             ImagingDelete(bitmap);
             bitmap = ImagingCrop(
-                self->bitmap, glyph->sx0, glyph->sy0, glyph->sx1, glyph->sy1);
+                self->bitmap, glyph->sx0, glyph->sy0, glyph->sx1, glyph->sy1
+            );
             if (!bitmap) {
                 goto failed;
             }
@@ -2850,7 +2876,8 @@ _font_getmask(ImagingFontObject *self, PyObject *args) {
             glyph->dx0 + x,
             glyph->dy0 + b,
             glyph->dx1 + x,
-            glyph->dy1 + b);
+            glyph->dy1 + b
+        );
         if (status < 0) {
             goto failed;
         }
@@ -2989,7 +3016,8 @@ _draw_arc(ImagingDrawObject *self, PyObject *args) {
         end,
         &ink,
         width,
-        self->blend);
+        self->blend
+    );
 
     free(xy);
 
@@ -3019,13 +3047,15 @@ _draw_bitmap(ImagingDrawObject *self, PyObject *args) {
     }
     if (n != 1) {
         PyErr_SetString(
-            PyExc_TypeError, "coordinate list must contain exactly 1 coordinate");
+            PyExc_TypeError, "coordinate list must contain exactly 1 coordinate"
+        );
         free(xy);
         return NULL;
     }
 
     n = ImagingDrawBitmap(
-        self->image->image, (int)xy[0], (int)xy[1], bitmap->image, &ink, self->blend);
+        self->image->image, (int)xy[0], (int)xy[1], bitmap->image, &ink, self->blend
+    );
 
     free(xy);
 
@@ -3081,7 +3111,8 @@ _draw_chord(ImagingDrawObject *self, PyObject *args) {
         &ink,
         fill,
         width,
-        self->blend);
+        self->blend
+    );
 
     free(xy);
 
@@ -3135,7 +3166,8 @@ _draw_ellipse(ImagingDrawObject *self, PyObject *args) {
         &ink,
         fill,
         width,
-        self->blend);
+        self->blend
+    );
 
     free(xy);
 
@@ -3175,14 +3207,16 @@ _draw_lines(ImagingDrawObject *self, PyObject *args) {
                     (int)p[2],
                     (int)p[3],
                     &ink,
-                    self->blend) < 0) {
+                    self->blend
+                ) < 0) {
                 free(xy);
                 return NULL;
             }
         }
         if (p) { /* draw last point */
             ImagingDrawPoint(
-                self->image->image, (int)p[2], (int)p[3], &ink, self->blend);
+                self->image->image, (int)p[2], (int)p[3], &ink, self->blend
+            );
         }
     } else {
         for (i = 0; i < n - 1; i++) {
@@ -3195,7 +3229,8 @@ _draw_lines(ImagingDrawObject *self, PyObject *args) {
                     (int)p[3],
                     &ink,
                     width,
-                    self->blend) < 0) {
+                    self->blend
+                ) < 0) {
                 free(xy);
                 return NULL;
             }
@@ -3227,7 +3262,8 @@ _draw_points(ImagingDrawObject *self, PyObject *args) {
     for (i = 0; i < n; i++) {
         double *p = &xy[i + i];
         if (ImagingDrawPoint(
-                self->image->image, (int)p[0], (int)p[1], &ink, self->blend) < 0) {
+                self->image->image, (int)p[0], (int)p[1], &ink, self->blend
+            ) < 0) {
             free(xy);
             return NULL;
         }
@@ -3316,7 +3352,8 @@ _draw_pieslice(ImagingDrawObject *self, PyObject *args) {
         &ink,
         fill,
         width,
-        self->blend);
+        self->blend
+    );
 
     free(xy);
 
@@ -3348,7 +3385,8 @@ _draw_polygon(ImagingDrawObject *self, PyObject *args) {
     }
     if (n < 2) {
         PyErr_SetString(
-            PyExc_TypeError, "coordinate list must contain at least 2 coordinates");
+            PyExc_TypeError, "coordinate list must contain at least 2 coordinates"
+        );
         free(xy);
         return NULL;
     }
@@ -3421,7 +3459,8 @@ _draw_rectangle(ImagingDrawObject *self, PyObject *args) {
         &ink,
         fill,
         width,
-        self->blend);
+        self->blend
+    );
 
     free(xy);
 
@@ -3561,7 +3600,8 @@ _effect_mandelbrot(ImagingObject *self, PyObject *args) {
             &extent[1],
             &extent[2],
             &extent[3],
-            &quality)) {
+            &quality
+        )) {
         return NULL;
     }
 
@@ -3789,7 +3829,8 @@ _getattr_unsafe_ptrs(ImagingObject *self, void *closure) {
         "image32",
         self->image->image32,
         "image",
-        self->image->image);
+        self->image->image
+    );
 }
 
 static struct PyGetSetDef getsetters[] = {
@@ -3799,7 +3840,8 @@ static struct PyGetSetDef getsetters[] = {
     {"id", (getter)_getattr_id},
     {"ptr", (getter)_getattr_ptr},
     {"unsafe_ptrs", (getter)_getattr_unsafe_ptrs},
-    {NULL}};
+    {NULL}
+};
 
 /* basic sequence semantics */
 
@@ -4108,9 +4150,8 @@ _set_blocks_max(PyObject *self, PyObject *args) {
     if (blocks_max < 0) {
         PyErr_SetString(PyExc_ValueError, "blocks_max should be greater than 0");
         return NULL;
-    } else if (
+    } else if ((unsigned long)blocks_max >
-        (unsigned long)blocks_max >
+               SIZE_MAX / sizeof(ImagingDefaultArena.blocks_pool[0])) {
-        SIZE_MAX / sizeof(ImagingDefaultArena.blocks_pool[0])) {
         PyErr_SetString(PyExc_ValueError, "blocks_max is too large");
         return NULL;
     }
@@ -4465,7 +4506,8 @@ setup_module(PyObject *m) {
 
     PyObject *pillow_version = PyUnicode_FromString(version);
     PyDict_SetItemString(
-        d, "PILLOW_VERSION", pillow_version ? pillow_version : Py_None);
+        d, "PILLOW_VERSION", pillow_version ? pillow_version : Py_None
+    );
     Py_XDECREF(pillow_version);
 
     return 0;
@@ -4490,5 +4532,9 @@ PyInit__imaging(void) {
         return NULL;
     }
 
+#ifdef Py_GIL_DISABLED
+    PyUnstable_Module_SetGIL(m, Py_MOD_GIL_NOT_USED);
+#endif
+
     return m;
 }

src/_imagingcms.c

@@ -331,7 +331,8 @@ pyCMScopyAux(cmsHTRANSFORM hTransform, Imaging imDst, const Imaging imSrc) {
                 memcpy(
                     pDstExtras + x * dstChunkSize,
                     pSrcExtras + x * srcChunkSize,
-                    channelSize);
+                    channelSize
+                );
             }
         }
     }
@@ -373,7 +374,8 @@ _buildTransform(
     char *sInMode,
     char *sOutMode,
     int iRenderingIntent,
-    cmsUInt32Number cmsFLAGS) {
+    cmsUInt32Number cmsFLAGS
+) {
     cmsHTRANSFORM hTransform;
 
     Py_BEGIN_ALLOW_THREADS
@@ -385,7 +387,8 @@ _buildTransform(
             hOutputProfile,
             findLCMStype(sOutMode),
             iRenderingIntent,
-            cmsFLAGS);
+            cmsFLAGS
+        );
 
     Py_END_ALLOW_THREADS;
 
@@ -405,7 +408,8 @@ _buildProofTransform(
     char *sOutMode,
     int iRenderingIntent,
     int iProofIntent,
-    cmsUInt32Number cmsFLAGS) {
+    cmsUInt32Number cmsFLAGS
+) {
     cmsHTRANSFORM hTransform;
 
     Py_BEGIN_ALLOW_THREADS
@@ -419,7 +423,8 @@ _buildProofTransform(
             hProofProfile,
             iRenderingIntent,
             iProofIntent,
-            cmsFLAGS);
+            cmsFLAGS
+        );
 
     Py_END_ALLOW_THREADS;
 
@@ -454,7 +459,8 @@ buildTransform(PyObject *self, PyObject *args) {
             &sInMode,
             &sOutMode,
             &iRenderingIntent,
-            &cmsFLAGS)) {
+            &cmsFLAGS
+        )) {
         return NULL;
     }
 
@@ -464,7 +470,8 @@ buildTransform(PyObject *self, PyObject *args) {
         sInMode,
         sOutMode,
         iRenderingIntent,
-        cmsFLAGS);
+        cmsFLAGS
+    );
 
     if (!transform) {
         return NULL;
@@ -499,7 +506,8 @@ buildProofTransform(PyObject *self, PyObject *args) {
             &sOutMode,
             &iRenderingIntent,
             &iProofIntent,
-            &cmsFLAGS)) {
+            &cmsFLAGS
+        )) {
         return NULL;
     }
 
@@ -511,7 +519,8 @@ buildProofTransform(PyObject *self, PyObject *args) {
         sOutMode,
         iRenderingIntent,
         iProofIntent,
-        cmsFLAGS);
+        cmsFLAGS
+    );
 
     if (!transform) {
         return NULL;
@@ -563,7 +572,8 @@ createProfile(PyObject *self, PyObject *args) {
                 PyErr_SetString(
                     PyExc_ValueError,
                     "ERROR: Could not calculate white point from color temperature "
-                    "provided, must be float in degrees Kelvin");
+                    "provided, must be float in degrees Kelvin"
+                );
                 return NULL;
             }
             hProfile = cmsCreateLab2Profile(&whitePoint);
@@ -624,7 +634,8 @@ cms_get_display_profile_win32(PyObject *self, PyObject *args) {
     HANDLE handle = 0;
     int is_dc = 0;
     if (!PyArg_ParseTuple(
-            args, "|" F_HANDLE "i:get_display_profile", &handle, &is_dc)) {
+            args, "|" F_HANDLE "i:get_display_profile", &handle, &is_dc
+        )) {
         return NULL;
     }
 
@@ -729,7 +740,8 @@ _xyz_py(cmsCIEXYZ *XYZ) {
     cmsCIExyY xyY;
     cmsXYZ2xyY(&xyY, XYZ);
     return Py_BuildValue(
-        "((d,d,d),(d,d,d))", XYZ->X, XYZ->Y, XYZ->Z, xyY.x, xyY.y, xyY.Y);
+        "((d,d,d),(d,d,d))", XYZ->X, XYZ->Y, XYZ->Z, xyY.x, xyY.y, xyY.Y
+    );
 }
 
 static PyObject *
@@ -758,7 +770,8 @@ _xyz3_py(cmsCIEXYZ *XYZ) {
         xyY[1].Y,
         xyY[2].x,
         xyY[2].y,
-        xyY[2].Y);
+        xyY[2].Y
+    );
 }
 
 static PyObject *
@@ -809,7 +822,8 @@ _profile_read_ciexyy_triple(CmsProfileObject *self, cmsTagSignature info) {
         triple->Green.Y,
         triple->Blue.x,
         triple->Blue.y,
-        triple->Blue.Y);
+        triple->Blue.Y
+    );
 }
 
 static PyObject *
@@ -873,7 +887,8 @@ _calculate_rgb_primaries(CmsProfileObject *self, cmsCIEXYZTRIPLE *result) {
         hXYZ,
         TYPE_XYZ_DBL,
         INTENT_RELATIVE_COLORIMETRIC,
-        cmsFLAGS_NOCACHE | cmsFLAGS_NOOPTIMIZE);
+        cmsFLAGS_NOCACHE | cmsFLAGS_NOOPTIMIZE
+    );
     cmsCloseProfile(hXYZ);
     if (hTransform == NULL) {
         return 0;
@@ -889,7 +904,8 @@ _check_intent(
     int clut,
     cmsHPROFILE hProfile,
     cmsUInt32Number Intent,
-    cmsUInt32Number UsedDirection) {
+    cmsUInt32Number UsedDirection
+) {
     if (clut) {
         return cmsIsCLUT(hProfile, Intent, UsedDirection);
     } else {
@@ -934,7 +950,8 @@ _is_intent_supported(CmsProfileObject *self, int clut) {
             _check_intent(clut, self->profile, intent, LCMS_USED_AS_OUTPUT) ? Py_True
                                                                             : Py_False,
             _check_intent(clut, self->profile, intent, LCMS_USED_AS_PROOF) ? Py_True
-                                                                           : Py_False);
+                                                                           : Py_False
+        );
         if (id == NULL || entry == NULL) {
             Py_XDECREF(id);
             Py_XDECREF(entry);
@@ -968,7 +985,8 @@ static PyMethodDef pyCMSdll_methods[] = {
     {"get_display_profile_win32", cms_get_display_profile_win32, METH_VARARGS},
 #endif
 
-    {NULL, NULL}};
+    {NULL, NULL}
+};
 
 static struct PyMethodDef cms_profile_methods[] = {
     {"is_intent_supported", (PyCFunction)cms_profile_is_intent_supported, METH_VARARGS},
@@ -1028,7 +1046,8 @@ cms_profile_getattr_creation_date(CmsProfileObject *self, void *closure) {
     }
 
     return PyDateTime_FromDateAndTime(
-        1900 + ct.tm_year, ct.tm_mon, ct.tm_mday, ct.tm_hour, ct.tm_min, ct.tm_sec, 0);
+        1900 + ct.tm_year, ct.tm_mon, ct.tm_mday, ct.tm_hour, ct.tm_min, ct.tm_sec, 0
+    );
 }
 
 static PyObject *
@@ -1106,13 +1125,15 @@ cms_profile_getattr_colorimetric_intent(CmsProfileObject *self, void *closure) {
 
 static PyObject *
 cms_profile_getattr_perceptual_rendering_intent_gamut(
-    CmsProfileObject *self, void *closure) {
+    CmsProfileObject *self, void *closure
+) {
     return _profile_read_signature(self, cmsSigPerceptualRenderingIntentGamutTag);
 }
 
 static PyObject *
 cms_profile_getattr_saturation_rendering_intent_gamut(
-    CmsProfileObject *self, void *closure) {
+    CmsProfileObject *self, void *closure
+) {
     return _profile_read_signature(self, cmsSigSaturationRenderingIntentGamutTag);
 }
 
@@ -1145,7 +1166,8 @@ cms_profile_getattr_blue_colorant(CmsProfileObject *self, void *closure) {
 
 static PyObject *
 cms_profile_getattr_media_white_point_temperature(
-    CmsProfileObject *self, void *closure) {
+    CmsProfileObject *self, void *closure
+) {
     cmsCIEXYZ *XYZ;
     cmsCIExyY xyY;
     cmsFloat64Number tempK;
@@ -1329,7 +1351,8 @@ cms_profile_getattr_icc_measurement_condition(CmsProfileObject *self, void *clos
         "flare",
         mc->Flare,
         "illuminant_type",
-        _illu_map(mc->IlluminantType));
+        _illu_map(mc->IlluminantType)
+    );
 }
 
 static PyObject *
@@ -1359,7 +1382,8 @@ cms_profile_getattr_icc_viewing_condition(CmsProfileObject *self, void *closure)
         vc->SurroundXYZ.Y,
         vc->SurroundXYZ.Z,
         "illuminant_type",
-        _illu_map(vc->IlluminantType));
+        _illu_map(vc->IlluminantType)
+    );
 }
 
 static struct PyGetSetDef cms_profile_getsetters[] = {
@@ -1407,11 +1431,12 @@ static struct PyGetSetDef cms_profile_getsetters[] = {
     {"colorant_table_out", (getter)cms_profile_getattr_colorant_table_out},
     {"intent_supported", (getter)cms_profile_getattr_is_intent_supported},
     {"clut", (getter)cms_profile_getattr_is_clut},
-    {"icc_measurement_condition",
+    {"icc_measurement_condition", (getter)cms_profile_getattr_icc_measurement_condition
-     (getter)cms_profile_getattr_icc_measurement_condition},
+    },
     {"icc_viewing_condition", (getter)cms_profile_getattr_icc_viewing_condition},
 
-    {NULL}};
+    {NULL}
+};
 
 static PyTypeObject CmsProfile_Type = {
     PyVarObject_HEAD_INIT(NULL, 0) "PIL.ImageCms.core.CmsProfile", /*tp_name*/
@@ -1538,5 +1563,9 @@ PyInit__imagingcms(void) {
 
     PyDateTime_IMPORT;
 
+#ifdef Py_GIL_DISABLED
+    PyUnstable_Module_SetGIL(m, Py_MOD_GIL_NOT_USED);
+#endif
+
     return m;
 }

src/_imagingft.c

@@ -20,6 +20,7 @@
 
 #define PY_SSIZE_T_CLEAN
 #include "Python.h"
+#include "thirdparty/pythoncapi_compat.h"
 #include "libImaging/Imaging.h"
 
 #include <ft2build.h>
@@ -125,7 +126,8 @@ getfont(PyObject *self_, PyObject *args, PyObject *kw) {
     unsigned char *font_bytes;
     Py_ssize_t font_bytes_size = 0;
     static char *kwlist[] = {
-        "filename", "size", "index", "encoding", "font_bytes", "layout_engine", NULL};
+        "filename", "size", "index", "encoding", "font_bytes", "layout_engine", NULL
+    };
 
     if (!library) {
         PyErr_SetString(PyExc_OSError, "failed to initialize FreeType library");
@@ -147,7 +149,8 @@ getfont(PyObject *self_, PyObject *args, PyObject *kw) {
             &encoding,
             &font_bytes,
             &font_bytes_size,
-            &layout_engine)) {
+            &layout_engine
+        )) {
         PyConfig_Clear(&config);
         return NULL;
     }
@@ -165,7 +168,8 @@ getfont(PyObject *self_, PyObject *args, PyObject *kw) {
             &encoding,
             &font_bytes,
             &font_bytes_size,
-            &layout_engine)) {
+            &layout_engine
+        )) {
         return NULL;
     }
 #endif
@@ -198,7 +202,8 @@ getfont(PyObject *self_, PyObject *args, PyObject *kw) {
                 (FT_Byte *)self->font_bytes,
                 font_bytes_size,
                 index,
-                &self->face);
+                &self->face
+            );
         }
     }
 
@@ -242,7 +247,8 @@ text_layout_raqm(
     const char *dir,
     PyObject *features,
     const char *lang,
-    GlyphInfo **glyph_info) {
+    GlyphInfo **glyph_info
+) {
     size_t i = 0, count = 0, start = 0;
     raqm_t *rq;
     raqm_glyph_t *glyphs = NULL;
@@ -296,13 +302,14 @@ text_layout_raqm(
 #if !defined(RAQM_VERSION_ATLEAST)
             /* RAQM_VERSION_ATLEAST was added in Raqm 0.7.0 */
             PyErr_SetString(
-                PyExc_ValueError,
+                PyExc_ValueError, "libraqm 0.7 or greater required for 'ttb' direction"
-                "libraqm 0.7 or greater required for 'ttb' direction");
+            );
             goto failed;
 #endif
         } else {
             PyErr_SetString(
-                PyExc_ValueError, "direction must be either 'rtl', 'ltr' or 'ttb'");
+                PyExc_ValueError, "direction must be either 'rtl', 'ltr' or 'ttb'"
+            );
             goto failed;
         }
     }
@@ -398,7 +405,8 @@ text_layout_fallback(
     const char *lang,
     GlyphInfo **glyph_info,
     int mask,
-    int color) {
+    int color
+) {
     int error, load_flags, i;
     char *buffer = NULL;
     FT_ULong ch;
@@ -411,7 +419,8 @@ text_layout_fallback(
         PyErr_SetString(
             PyExc_KeyError,
             "setting text direction, language or font features is not supported "
-            "without libraqm");
+            "without libraqm"
+        );
     }
 
     if (PyUnicode_Check(string)) {
@@ -458,7 +467,8 @@ text_layout_fallback(
                     last_index,
                     (*glyph_info)[i].index,
                     ft_kerning_default,
-                    &delta) == 0) {
+                    &delta
+                ) == 0) {
                 (*glyph_info)[i - 1].x_advance += PIXEL(delta.x);
                 (*glyph_info)[i - 1].y_advance += PIXEL(delta.y);
             }
@@ -482,7 +492,8 @@ text_layout(
     const char *lang,
     GlyphInfo **glyph_info,
     int mask,
-    int color) {
+    int color
+) {
     size_t count;
 #ifdef HAVE_RAQM
     if (have_raqm && self->layout_engine == LAYOUT_RAQM) {
@@ -491,7 +502,8 @@ text_layout(
 #endif
     {
         count = text_layout_fallback(
-            string, self, dir, features, lang, glyph_info, mask, color);
+            string, self, dir, features, lang, glyph_info, mask, color
+        );
     }
     return count;
 }
@@ -513,7 +525,8 @@ font_getlength(FontObject *self, PyObject *args) {
     /* calculate size and bearing for a given string */
 
     if (!PyArg_ParseTuple(
-            args, "O|zzOz:getlength", &string, &mode, &dir, &features, &lang)) {
+            args, "O|zzOz:getlength", &string, &mode, &dir, &features, &lang
+        )) {
         return NULL;
     }
 
@@ -555,7 +568,8 @@ bounding_box_and_anchors(
     int *width,
     int *height,
     int *x_offset,
-    int *y_offset) {
+    int *y_offset
+) {
     int position; /* pen position along primary axis, in 26.6 precision */
     int advanced; /* pen position along primary axis, in pixels */
     int px, py;   /* position of current glyph, in pixels */
@@ -660,7 +674,8 @@ bounding_box_and_anchors(
                 case 'm':  // middle (ascender + descender) / 2
                     y_anchor = PIXEL(
                         (face->size->metrics.ascender + face->size->metrics.descender) /
-                        2);
+                        2
+                    );
                     break;
                 case 's':  // horizontal baseline
                     y_anchor = 0;
@@ -740,7 +755,8 @@ font_getsize(FontObject *self, PyObject *args) {
     /* calculate size and bearing for a given string */
 
     if (!PyArg_ParseTuple(
-            args, "O|zzOzz:getsize", &string, &mode, &dir, &features, &lang, &anchor)) {
+            args, "O|zzOzz:getsize", &string, &mode, &dir, &features, &lang, &anchor
+        )) {
         return NULL;
     }
 
@@ -772,7 +788,8 @@ font_getsize(FontObject *self, PyObject *args) {
         &width,
         &height,
         &x_offset,
-        &y_offset);
+        &y_offset
+    );
     if (glyph_info) {
         PyMem_Free(glyph_info);
         glyph_info = NULL;
@@ -841,7 +858,8 @@ font_render(FontObject *self, PyObject *args) {
             &anchor,
             &foreground_ink_long,
             &x_start,
-            &y_start)) {
+            &y_start
+        )) {
         return NULL;
     }
 
@@ -888,7 +906,8 @@ font_render(FontObject *self, PyObject *args) {
         &width,
         &height,
         &x_offset,
-        &y_offset);
+        &y_offset
+    );
     if (error) {
         PyMem_Del(glyph_info);
         return NULL;
@@ -928,7 +947,8 @@ font_render(FontObject *self, PyObject *args) {
             (FT_Fixed)stroke_width * 64,
             FT_STROKER_LINECAP_ROUND,
             FT_STROKER_LINEJOIN_ROUND,
-            0);
+            0
+        );
     }
 
     /*
@@ -1103,8 +1123,8 @@ font_render(FontObject *self, PyObject *args) {
                                     BLEND(src_alpha, target[k * 4 + 2], src_blue, tmp);
                                 target[k * 4 + 3] = CLIP8(
                                     src_alpha +
-                                    MULDIV255(
+                                    MULDIV255(target[k * 4 + 3], (255 - src_alpha), tmp)
-                                        target[k * 4 + 3], (255 - src_alpha), tmp));
+                                );
                             } else {
                                 /* paste unpremultiplied RGBA values */
                                 target[k * 4 + 0] = src_red;
@@ -1122,15 +1142,20 @@ font_render(FontObject *self, PyObject *args) {
                             if (src_alpha > 0) {
                                 if (target[k * 4 + 3] > 0) {
                                     target[k * 4 + 0] = BLEND(
-                                        src_alpha, target[k * 4 + 0], ink[0], tmp);
+                                        src_alpha, target[k * 4 + 0], ink[0], tmp
+                                    );
                                     target[k * 4 + 1] = BLEND(
-                                        src_alpha, target[k * 4 + 1], ink[1], tmp);
+                                        src_alpha, target[k * 4 + 1], ink[1], tmp
+                                    );
                                     target[k * 4 + 2] = BLEND(
-                                        src_alpha, target[k * 4 + 2], ink[2], tmp);
+                                        src_alpha, target[k * 4 + 2], ink[2], tmp
+                                    );
                                     target[k * 4 + 3] = CLIP8(
                                         src_alpha +
                                         MULDIV255(
-                                            target[k * 4 + 3], (255 - src_alpha), tmp));
+                                            target[k * 4 + 3], (255 - src_alpha), tmp
+                                        )
+                                    );
                                 } else {
                                     target[k * 4 + 0] = ink[0];
                                     target[k * 4 + 1] = ink[1];
@@ -1148,7 +1173,9 @@ font_render(FontObject *self, PyObject *args) {
                                         ? CLIP8(
                                               src_alpha +
                                               MULDIV255(
-                                                  target[k], (255 - src_alpha), tmp))
+                                                  target[k], (255 - src_alpha), tmp
+                                              )
+                                          )
                                         : src_alpha;
                             }
                         }
@@ -1209,30 +1236,49 @@ font_getvarnames(FontObject *self) {
         return NULL;
     }
 
+    int *list_names_filled = PyMem_Malloc(num_namedstyles * sizeof(int));
+    if (list_names_filled == NULL) {
+        Py_DECREF(list_names);
+        FT_Done_MM_Var(library, master);
+        return PyErr_NoMemory();
+    }
+
+    for (int i = 0; i < num_namedstyles; i++) {
+        list_names_filled[i] = 0;
+    }
+
     name_count = FT_Get_Sfnt_Name_Count(self->face);
     for (i = 0; i < name_count; i++) {
         error = FT_Get_Sfnt_Name(self->face, i, &name);
         if (error) {
+            PyMem_Free(list_names_filled);
             Py_DECREF(list_names);
             FT_Done_MM_Var(library, master);
             return geterror(error);
         }
 
         for (j = 0; j < num_namedstyles; j++) {
-            if (PyList_GetItem(list_names, j) != NULL) {
+            if (list_names_filled[j]) {
                 continue;
             }
 
             if (master->namedstyle[j].strid == name.name_id) {
                 list_name = Py_BuildValue("y#", name.string, name.string_len);
+                if (list_name == NULL) {
+                    PyMem_Free(list_names_filled);
+                    Py_DECREF(list_names);
+                    FT_Done_MM_Var(library, master);
+                    return NULL;
+                }
                 PyList_SetItem(list_names, j, list_name);
+                list_names_filled[j] = 1;
                 break;
             }
         }
     }
 
+    PyMem_Free(list_names_filled);
     FT_Done_MM_Var(library, master);
-
     return list_names;
 }
 
@@ -1289,9 +1335,14 @@ font_getvaraxes(FontObject *self) {
 
             if (name.name_id == axis.strid) {
                 axis_name = Py_BuildValue("y#", name.string, name.string_len);
-                PyDict_SetItemString(
+                if (axis_name == NULL) {
-                    list_axis, "name", axis_name ? axis_name : Py_None);
+                    Py_DECREF(list_axis);
-                Py_XDECREF(axis_name);
+                    Py_DECREF(list_axes);
+                    FT_Done_MM_Var(library, master);
+                    return NULL;
+                }
+                PyDict_SetItemString(list_axis, "name", axis_name);
+                Py_DECREF(axis_name);
                 break;
             }
         }
@@ -1345,7 +1396,12 @@ font_setvaraxes(FontObject *self, PyObject *args) {
         return PyErr_NoMemory();
     }
     for (i = 0; i < num_coords; i++) {
-        item = PyList_GET_ITEM(axes, i);
+        item = PyList_GetItemRef(axes, i);
+        if (item == NULL) {
+            free(coords);
+            return NULL;
+        }
+
         if (PyFloat_Check(item)) {
             coord = PyFloat_AS_DOUBLE(item);
         } else if (PyLong_Check(item)) {
@@ -1353,10 +1409,12 @@ font_setvaraxes(FontObject *self, PyObject *args) {
         } else if (PyNumber_Check(item)) {
             coord = PyFloat_AsDouble(item);
         } else {
+            Py_DECREF(item);
             free(coords);
             PyErr_SetString(PyExc_TypeError, "list must contain numbers");
             return NULL;
         }
+        Py_DECREF(item);
         coords[i] = coord * 65536;
     }
 
@@ -1393,7 +1451,8 @@ static PyMethodDef font_methods[] = {
     {"setvarname", (PyCFunction)font_setvarname, METH_VARARGS},
     {"setvaraxes", (PyCFunction)font_setvaraxes, METH_VARARGS},
 #endif
-    {NULL, NULL}};
+    {NULL, NULL}
+};
 
 static PyObject *
 font_getattr_family(FontObject *self, void *closure) {
@@ -1450,7 +1509,8 @@ static struct PyGetSetDef font_getsetters[] = {
     {"x_ppem", (getter)font_getattr_x_ppem},
     {"y_ppem", (getter)font_getattr_y_ppem},
     {"glyphs", (getter)font_getattr_glyphs},
-    {NULL}};
+    {NULL}
+};
 
 static PyTypeObject Font_Type = {
     PyVarObject_HEAD_INIT(NULL, 0) "Font", /*tp_name*/
@@ -1486,7 +1546,8 @@ static PyTypeObject Font_Type = {
 };
 
 static PyMethodDef _functions[] = {
-    {"getfont", (PyCFunction)getfont, METH_VARARGS | METH_KEYWORDS}, {NULL, NULL}};
+    {"getfont", (PyCFunction)getfont, METH_VARARGS | METH_KEYWORDS}, {NULL, NULL}
+};
 
 static int
 setup_module(PyObject *m) {
@@ -1576,5 +1637,9 @@ PyInit__imagingft(void) {
         return NULL;
     }
 
+#ifdef Py_GIL_DISABLED
+    PyUnstable_Module_SetGIL(m, Py_MOD_GIL_NOT_USED);
+#endif
+
     return m;
 }

src/_imagingmath.c

@@ -209,7 +209,8 @@ _binop(PyObject *self, PyObject *args) {
 }
 
 static PyMethodDef _functions[] = {
-    {"unop", _unop, 1}, {"binop", _binop, 1}, {NULL, NULL}};
+    {"unop", _unop, 1}, {"binop", _binop, 1}, {NULL, NULL}
+};
 
 static void
 install(PyObject *d, char *name, void *value) {
@@ -290,5 +291,9 @@ PyInit__imagingmath(void) {
         return NULL;
     }
 
+#ifdef Py_GIL_DISABLED
+    PyUnstable_Module_SetGIL(m, Py_MOD_GIL_NOT_USED);
+#endif
+
     return m;
 }

src/_imagingmorph.c

@@ -253,7 +253,8 @@ static PyMethodDef functions[] = {
     {"apply", (PyCFunction)apply, METH_VARARGS, NULL},
     {"get_on_pixels", (PyCFunction)get_on_pixels, METH_VARARGS, NULL},
     {"match", (PyCFunction)match, METH_VARARGS, NULL},
-    {NULL, NULL, 0, NULL}};
+    {NULL, NULL, 0, NULL}
+};
 
 PyMODINIT_FUNC
 PyInit__imagingmorph(void) {
@@ -269,5 +270,9 @@ PyInit__imagingmorph(void) {
 
     m = PyModule_Create(&module_def);
 
+#ifdef Py_GIL_DISABLED
+    PyUnstable_Module_SetGIL(m, Py_MOD_GIL_NOT_USED);
+#endif
+
     return m;
 }

src/_imagingtk.c

@@ -62,5 +62,10 @@ PyInit__imagingtk(void) {
         Py_DECREF(m);
         return NULL;
     }
+
+#ifdef Py_GIL_DISABLED
+    PyUnstable_Module_SetGIL(m, Py_MOD_GIL_NOT_USED);
+#endif
+
     return m;
 }

src/_webp.c

@@ -42,7 +42,8 @@ static const char *const kErrorMessages[-WEBP_MUX_NOT_ENOUGH_DATA + 1] = {
     "WEBP_MUX_INVALID_ARGUMENT",
     "WEBP_MUX_BAD_DATA",
     "WEBP_MUX_MEMORY_ERROR",
-    "WEBP_MUX_NOT_ENOUGH_DATA"};
+    "WEBP_MUX_NOT_ENOUGH_DATA"
+};
 
 PyObject *
 HandleMuxError(WebPMuxError err, char *chunk) {
@@ -61,7 +62,8 @@ HandleMuxError(WebPMuxError err, char *chunk) {
             sprintf(message, "could not assemble chunks: %s", kErrorMessages[-err]);
     } else {
         message_len = sprintf(
-            message, "could not set %.4s chunk: %s", chunk, kErrorMessages[-err]);
+            message, "could not set %.4s chunk: %s", chunk, kErrorMessages[-err]
+        );
     }
     if (message_len < 0) {
         PyErr_SetString(PyExc_RuntimeError, "failed to construct error message");
@@ -138,7 +140,8 @@ _anim_encoder_new(PyObject *self, PyObject *args) {
             &kmin,
             &kmax,
             &allow_mixed,
-            &verbose)) {
+            &verbose
+        )) {
         return NULL;
     }
 
@@ -214,7 +217,8 @@ _anim_encoder_add(PyObject *self, PyObject *args) {
             &lossless,
             &quality_factor,
             &alpha_quality_factor,
-            &method)) {
+            &method
+        )) {
         return NULL;
     }
 
@@ -283,7 +287,8 @@ _anim_encoder_assemble(PyObject *self, PyObject *args) {
             &exif_bytes,
             &exif_size,
             &xmp_bytes,
-            &xmp_size)) {
+            &xmp_size
+        )) {
         return NULL;
     }
 
@@ -421,7 +426,8 @@ _anim_decoder_get_info(PyObject *self) {
         info->loop_count,
         info->bgcolor,
         info->frame_count,
-        decp->mode);
+        decp->mode
+    );
 }
 
 PyObject *
@@ -466,7 +472,8 @@ _anim_decoder_get_next(PyObject *self) {
     }
 
     bytes = PyBytes_FromStringAndSize(
-        (char *)buf, decp->info.canvas_width * 4 * decp->info.canvas_height);
+        (char *)buf, decp->info.canvas_width * 4 * decp->info.canvas_height
+    );
 
     ret = Py_BuildValue("Si", bytes, timestamp);
 
@@ -621,7 +628,8 @@ WebPEncode_wrapper(PyObject *self, PyObject *args) {
             &exif_bytes,
             &exif_size,
             &xmp_bytes,
-            &xmp_size)) {
+            &xmp_size
+        )) {
         return NULL;
     }
 
@@ -828,12 +836,14 @@ WebPDecode_wrapper(PyObject *self, PyObject *args) {
 
             if (WEBP_MUX_OK == WebPMuxGetChunk(mux, "ICCP", &icc_profile_data)) {
                 icc_profile = PyBytes_FromStringAndSize(
-                    (const char *)icc_profile_data.bytes, icc_profile_data.size);
+                    (const char *)icc_profile_data.bytes, icc_profile_data.size
+                );
             }
 
             if (WEBP_MUX_OK == WebPMuxGetChunk(mux, "EXIF", &exif_data)) {
                 exif = PyBytes_FromStringAndSize(
-                    (const char *)exif_data.bytes, exif_data.size);
+                    (const char *)exif_data.bytes, exif_data.size
+                );
             }
 
             WebPDataClear(&image.bitstream);
@@ -848,12 +858,14 @@ WebPDecode_wrapper(PyObject *self, PyObject *args) {
 
     if (config.output.colorspace < MODE_YUV) {
         bytes = PyBytes_FromStringAndSize(
-            (char *)config.output.u.RGBA.rgba, config.output.u.RGBA.size);
+            (char *)config.output.u.RGBA.rgba, config.output.u.RGBA.size
+        );
     } else {
         // Skipping YUV for now. Need Test Images.
         // UNDONE -- unclear if we'll ever get here if we set mode_rgb*
         bytes = PyBytes_FromStringAndSize(
-            (char *)config.output.u.YUVA.y, config.output.u.YUVA.y_size);
+            (char *)config.output.u.YUVA.y, config.output.u.YUVA.y_size
+        );
     }
 
     pymode = PyUnicode_FromString(mode);
@@ -864,7 +876,8 @@ WebPDecode_wrapper(PyObject *self, PyObject *args) {
         config.output.height,
         pymode,
         NULL == icc_profile ? Py_None : icc_profile,
-        NULL == exif ? Py_None : exif);
+        NULL == exif ? Py_None : exif
+    );
 
 end:
     WebPFreeDecBuffer(&config.output);
@@ -898,7 +911,8 @@ WebPDecoderVersion_str(void) {
         "%d.%d.%d",
         version_number >> 16,
         (version_number >> 8) % 0x100,
-        version_number % 0x100);
+        version_number % 0x100
+    );
     return version;
 }
 
@@ -932,7 +946,8 @@ static PyMethodDef webpMethods[] = {
      WebPDecoderBuggyAlpha_wrapper,
      METH_NOARGS,
      "WebPDecoderBuggyAlpha"},
-    {NULL, NULL}};
+    {NULL, NULL}
+};
 
 void
 addMuxFlagToModule(PyObject *m) {
@@ -1005,5 +1020,9 @@ PyInit__webp(void) {
         return NULL;
     }
 
+#ifdef Py_GIL_DISABLED
+    PyUnstable_Module_SetGIL(m, Py_MOD_GIL_NOT_USED);
+#endif
+
     return m;
 }

src/decode.c

@@ -46,7 +46,8 @@
 
 typedef struct {
     PyObject_HEAD int (*decode)(
-        Imaging im, ImagingCodecState state, UINT8 *buffer, Py_ssize_t bytes);
+        Imaging im, ImagingCodecState state, UINT8 *buffer, Py_ssize_t bytes
+    );
     int (*cleanup)(ImagingCodecState state);
     struct ImagingCodecStateInstance state;
     Imaging im;
@@ -938,7 +939,8 @@ PyImaging_Jpeg2KDecoderNew(PyObject *self, PyObject *args) {
     PY_LONG_LONG length = -1;
 
     if (!PyArg_ParseTuple(
-            args, "ss|iiiL", &mode, &format, &reduce, &layers, &fd, &length)) {
+            args, "ss|iiiL", &mode, &format, &reduce, &layers, &fd, &length
+        )) {
         return NULL;
     }
 

src/display.c

@@ -105,7 +105,8 @@ _draw(ImagingDisplayObject *display, PyObject *args) {
             src + 0,
             src + 1,
             src + 2,
-            src + 3)) {
+            src + 3
+        )) {
         return NULL;
     }
 
@@ -221,7 +222,8 @@ _tobytes(ImagingDisplayObject *display, PyObject *args) {
     }
 
     return PyBytes_FromStringAndSize(
-        display->dib->bits, display->dib->ysize * display->dib->linesize);
+        display->dib->bits, display->dib->ysize * display->dib->linesize
+    );
 }
 
 static struct PyMethodDef methods[] = {
@@ -247,7 +249,8 @@ _getattr_size(ImagingDisplayObject *self, void *closure) {
 }
 
 static struct PyGetSetDef getsetters[] = {
-    {"mode", (getter)_getattr_mode}, {"size", (getter)_getattr_size}, {NULL}};
+    {"mode", (getter)_getattr_mode}, {"size", (getter)_getattr_size}, {NULL}
+};
 
 static PyTypeObject ImagingDisplayType = {
     PyVarObject_HEAD_INIT(NULL, 0) "ImagingDisplay", /*tp_name*/
@@ -341,9 +344,8 @@ PyImaging_GrabScreenWin32(PyObject *self, PyObject *args) {
     // added in Windows 10 (1607)
     // loaded dynamically to avoid link errors
     user32 = LoadLibraryA("User32.dll");
-    SetThreadDpiAwarenessContext_function =
+    SetThreadDpiAwarenessContext_function = (Func_SetThreadDpiAwarenessContext
-        (Func_SetThreadDpiAwarenessContext)GetProcAddress(
+    )GetProcAddress(user32, "SetThreadDpiAwarenessContext");
-            user32, "SetThreadDpiAwarenessContext");
     if (SetThreadDpiAwarenessContext_function != NULL) {
         // DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE = ((DPI_CONTEXT_HANDLE)-3)
         dpiAwareness = SetThreadDpiAwarenessContext_function((HANDLE)-3);
@@ -403,7 +405,8 @@ PyImaging_GrabScreenWin32(PyObject *self, PyObject *args) {
             height,
             PyBytes_AS_STRING(buffer),
             (BITMAPINFO *)&core,
-            DIB_RGB_COLORS)) {
+            DIB_RGB_COLORS
+        )) {
         goto error;
     }
 
@@ -547,7 +550,8 @@ windowCallback(HWND wnd, UINT message, WPARAM wParam, LPARAM lParam) {
                 ps.rcPaint.left,
                 ps.rcPaint.top,
                 ps.rcPaint.right,
-                ps.rcPaint.bottom);
+                ps.rcPaint.bottom
+            );
             if (result) {
                 Py_DECREF(result);
             } else {
@@ -562,7 +566,8 @@ windowCallback(HWND wnd, UINT message, WPARAM wParam, LPARAM lParam) {
                 0,
                 0,
                 rect.right - rect.left,
-                rect.bottom - rect.top);
+                rect.bottom - rect.top
+            );
             if (result) {
                 Py_DECREF(result);
             } else {
@@ -577,7 +582,8 @@ windowCallback(HWND wnd, UINT message, WPARAM wParam, LPARAM lParam) {
                 0,
                 0,
                 rect.right - rect.left,
-                rect.bottom - rect.top);
+                rect.bottom - rect.top
+            );
             if (result) {
                 Py_DECREF(result);
             } else {
@@ -591,7 +597,8 @@ windowCallback(HWND wnd, UINT message, WPARAM wParam, LPARAM lParam) {
         case WM_SIZE:
             /* resize window */
             result = PyObject_CallFunction(
-                callback, "sii", "resize", LOWORD(lParam), HIWORD(lParam));
+                callback, "sii", "resize", LOWORD(lParam), HIWORD(lParam)
+            );
             if (result) {
                 InvalidateRect(wnd, NULL, 1);
                 Py_DECREF(result);
@@ -670,7 +677,8 @@ PyImaging_CreateWindowWin32(PyObject *self, PyObject *args) {
         HWND_DESKTOP,
         NULL,
         NULL,
-        NULL);
+        NULL
+    );
 
     if (!wnd) {
         PyErr_SetString(PyExc_OSError, "failed to create window");
@@ -732,7 +740,8 @@ PyImaging_DrawWmf(PyObject *self, PyObject *args) {
             &x0,
             &x1,
             &y0,
-            &y1)) {
+            &y1
+        )) {
         return NULL;
     }
 
@@ -844,7 +853,8 @@ PyImaging_GrabScreenX11(PyObject *self, PyObject *args) {
         PyErr_Format(
             PyExc_OSError,
             "X connection failed: error %i",
-            xcb_connection_has_error(connection));
+            xcb_connection_has_error(connection)
+        );
         xcb_disconnect(connection);
         return NULL;
     }
@@ -878,8 +888,10 @@ PyImaging_GrabScreenX11(PyObject *self, PyObject *args) {
             0,
             width,
             height,
-            0x00ffffff),
+            0x00ffffff
-        &error);
+        ),
+        &error
+    );
     if (reply == NULL) {
         PyErr_Format(
             PyExc_OSError,
@@ -887,7 +899,8 @@ PyImaging_GrabScreenX11(PyObject *self, PyObject *args) {
             error->error_code,
             error->major_code,
             error->minor_code,
-            error->resource_id);
+            error->resource_id
+        );
         free(error);
         xcb_disconnect(connection);
         return NULL;
@@ -897,7 +910,8 @@ PyImaging_GrabScreenX11(PyObject *self, PyObject *args) {
 
     if (reply->depth == 24) {
         buffer = PyBytes_FromStringAndSize(
-            (char *)xcb_get_image_data(reply), xcb_get_image_data_length(reply));
+            (char *)xcb_get_image_data(reply), xcb_get_image_data_length(reply)
+        );
     } else {
         PyErr_Format(PyExc_OSError, "unsupported bit depth: %i", reply->depth);
     }

src/encode.c

@@ -25,6 +25,7 @@
 #define PY_SSIZE_T_CLEAN
 #include "Python.h"
 
+#include "thirdparty/pythoncapi_compat.h"
 #include "libImaging/Imaging.h"
 #include "libImaging/Gif.h"
 
@@ -38,7 +39,8 @@
 
 typedef struct {
     PyObject_HEAD int (*encode)(
-        Imaging im, ImagingCodecState state, UINT8 *buffer, int bytes);
+        Imaging im, ImagingCodecState state, UINT8 *buffer, int bytes
+    );
     int (*cleanup)(ImagingCodecState state);
     struct ImagingCodecStateInstance state;
     Imaging im;
@@ -134,7 +136,8 @@ _encode(ImagingEncoderObject *encoder, PyObject *args) {
     }
 
     status = encoder->encode(
-        encoder->im, &encoder->state, (UINT8 *)PyBytes_AsString(buf), bufsize);
+        encoder->im, &encoder->state, (UINT8 *)PyBytes_AsString(buf), bufsize
+    );
 
     /* adjust string length to avoid slicing in encoder */
     if (_PyBytes_Resize(&buf, (status > 0) ? status : 0) < 0) {
@@ -571,7 +574,8 @@ PyImaging_ZipEncoderNew(PyObject *self, PyObject *args) {
             &compress_level,
             &compress_type,
             &dictionary,
-            &dictionary_size)) {
+            &dictionary_size
+        )) {
         return NULL;
     }
 
@@ -652,15 +656,8 @@ PyImaging_LibTiffEncoderNew(PyObject *self, PyObject *args) {
     PyObject *item;
 
     if (!PyArg_ParseTuple(
-            args,
+            args, "sssnsOO", &mode, &rawmode, &compname, &fp, &filename, &tags, &types
-            "sssnsOO",
+        )) {
-            &mode,
-            &rawmode,
-            &compname,
-            &fp,
-            &filename,
-            &tags,
-            &types)) {
         return NULL;
     }
 
@@ -671,11 +668,17 @@ PyImaging_LibTiffEncoderNew(PyObject *self, PyObject *args) {
         tags_size = PyList_Size(tags);
         TRACE(("tags size: %d\n", (int)tags_size));
         for (pos = 0; pos < tags_size; pos++) {
-            item = PyList_GetItem(tags, pos);
+            item = PyList_GetItemRef(tags, pos);
+            if (item == NULL) {
+                return NULL;
+            }
+
             if (!PyTuple_Check(item) || PyTuple_Size(item) != 2) {
+                Py_DECREF(item);
                 PyErr_SetString(PyExc_ValueError, "Invalid tags list");
                 return NULL;
             }
+            Py_DECREF(item);
         }
         pos = 0;
     }
@@ -703,11 +706,17 @@ PyImaging_LibTiffEncoderNew(PyObject *self, PyObject *args) {
 
     num_core_tags = sizeof(core_tags) / sizeof(int);
     for (pos = 0; pos < tags_size; pos++) {
-        item = PyList_GetItem(tags, pos);
+        item = PyList_GetItemRef(tags, pos);
+        if (item == NULL) {
+            return NULL;
+        }
+
         // We already checked that tags is a 2-tuple list.
-        key = PyTuple_GetItem(item, 0);
+        key = PyTuple_GET_ITEM(item, 0);
         key_int = (int)PyLong_AsLong(key);
-        value = PyTuple_GetItem(item, 1);
+        value = PyTuple_GET_ITEM(item, 1);
+        Py_DECREF(item);
+
         status = 0;
         is_core_tag = 0;
         is_var_length = 0;
@@ -721,7 +730,10 @@ PyImaging_LibTiffEncoderNew(PyObject *self, PyObject *args) {
         }
 
         if (!is_core_tag) {
-            PyObject *tag_type = PyDict_GetItem(types, key);
+            PyObject *tag_type;
+            if (PyDict_GetItemRef(types, key, &tag_type) < 0) {
+                return NULL;  // Exception has been already set
+            }
             if (tag_type) {
                 int type_int = PyLong_AsLong(tag_type);
                 if (type_int >= TIFF_BYTE && type_int <= TIFF_DOUBLE) {
@@ -769,7 +781,8 @@ PyImaging_LibTiffEncoderNew(PyObject *self, PyObject *args) {
                 is_var_length = 1;
             }
             if (ImagingLibTiffMergeFieldInfo(
-                    &encoder->state, type, key_int, is_var_length)) {
+                    &encoder->state, type, key_int, is_var_length
+                )) {
                 continue;
             }
         }
@@ -779,7 +792,8 @@ PyImaging_LibTiffEncoderNew(PyObject *self, PyObject *args) {
                 &encoder->state,
                 (ttag_t)key_int,
                 PyBytes_Size(value),
-                PyBytes_AsString(value));
+                PyBytes_AsString(value)
+            );
         } else if (is_var_length) {
             Py_ssize_t len, i;
             TRACE(("Setting from Tuple: %d \n", key_int));
@@ -789,7 +803,8 @@ PyImaging_LibTiffEncoderNew(PyObject *self, PyObject *args) {
                 int stride = 256;
                 if (len != 768) {
                     PyErr_SetString(
-                        PyExc_ValueError, "Requiring 768 items for Colormap");
+                        PyExc_ValueError, "Requiring 768 items for Colormap"
+                    );
                     return NULL;
                 }
                 UINT16 *av;
@@ -804,7 +819,8 @@ PyImaging_LibTiffEncoderNew(PyObject *self, PyObject *args) {
                         (ttag_t)key_int,
                         av,
                         av + stride,
-                        av + stride * 2);
+                        av + stride * 2
+                    );
                     free(av);
                 }
             } else if (key_int == TIFFTAG_YCBCRSUBSAMPLING) {
@@ -812,7 +828,8 @@ PyImaging_LibTiffEncoderNew(PyObject *self, PyObject *args) {
                     &encoder->state,
                     (ttag_t)key_int,
                     (UINT16)PyLong_AsLong(PyTuple_GetItem(value, 0)),
-                    (UINT16)PyLong_AsLong(PyTuple_GetItem(value, 1)));
+                    (UINT16)PyLong_AsLong(PyTuple_GetItem(value, 1))
+                );
             } else if (type == TIFF_SHORT) {
                 UINT16 *av;
                 /* malloc check ok, calloc checks for overflow */
@@ -822,7 +839,8 @@ PyImaging_LibTiffEncoderNew(PyObject *self, PyObject *args) {
                         av[i] = (UINT16)PyLong_AsLong(PyTuple_GetItem(value, i));
                     }
                     status = ImagingLibTiffSetField(
-                        &encoder->state, (ttag_t)key_int, len, av);
+                        &encoder->state, (ttag_t)key_int, len, av
+                    );
                     free(av);
                 }
             } else if (type == TIFF_LONG) {
@@ -834,7 +852,8 @@ PyImaging_LibTiffEncoderNew(PyObject *self, PyObject *args) {
                         av[i] = (UINT32)PyLong_AsLong(PyTuple_GetItem(value, i));
                     }
                     status = ImagingLibTiffSetField(
-                        &encoder->state, (ttag_t)key_int, len, av);
+                        &encoder->state, (ttag_t)key_int, len, av
+                    );
                     free(av);
                 }
             } else if (type == TIFF_SBYTE) {
@@ -846,7 +865,8 @@ PyImaging_LibTiffEncoderNew(PyObject *self, PyObject *args) {
                         av[i] = (INT8)PyLong_AsLong(PyTuple_GetItem(value, i));
                     }
                     status = ImagingLibTiffSetField(
-                        &encoder->state, (ttag_t)key_int, len, av);
+                        &encoder->state, (ttag_t)key_int, len, av
+                    );
                     free(av);
                 }
             } else if (type == TIFF_SSHORT) {
@@ -858,7 +878,8 @@ PyImaging_LibTiffEncoderNew(PyObject *self, PyObject *args) {
                         av[i] = (INT16)PyLong_AsLong(PyTuple_GetItem(value, i));
                     }
                     status = ImagingLibTiffSetField(
-                        &encoder->state, (ttag_t)key_int, len, av);
+                        &encoder->state, (ttag_t)key_int, len, av
+                    );
                     free(av);
                 }
             } else if (type == TIFF_SLONG) {
@@ -870,7 +891,8 @@ PyImaging_LibTiffEncoderNew(PyObject *self, PyObject *args) {
                         av[i] = (INT32)PyLong_AsLong(PyTuple_GetItem(value, i));
                     }
                     status = ImagingLibTiffSetField(
-                        &encoder->state, (ttag_t)key_int, len, av);
+                        &encoder->state, (ttag_t)key_int, len, av
+                    );
                     free(av);
                 }
             } else if (type == TIFF_FLOAT) {
@@ -882,7 +904,8 @@ PyImaging_LibTiffEncoderNew(PyObject *self, PyObject *args) {
                         av[i] = (FLOAT32)PyFloat_AsDouble(PyTuple_GetItem(value, i));
                     }
                     status = ImagingLibTiffSetField(
-                        &encoder->state, (ttag_t)key_int, len, av);
+                        &encoder->state, (ttag_t)key_int, len, av
+                    );
                     free(av);
                 }
             } else if (type == TIFF_DOUBLE) {
@@ -894,43 +917,54 @@ PyImaging_LibTiffEncoderNew(PyObject *self, PyObject *args) {
                         av[i] = PyFloat_AsDouble(PyTuple_GetItem(value, i));
                     }
                     status = ImagingLibTiffSetField(
-                        &encoder->state, (ttag_t)key_int, len, av);
+                        &encoder->state, (ttag_t)key_int, len, av
+                    );
                     free(av);
                 }
             }
         } else {
             if (type == TIFF_SHORT) {
                 status = ImagingLibTiffSetField(
-                    &encoder->state, (ttag_t)key_int, (UINT16)PyLong_AsLong(value));
+                    &encoder->state, (ttag_t)key_int, (UINT16)PyLong_AsLong(value)
+                );
             } else if (type == TIFF_LONG) {
                 status = ImagingLibTiffSetField(
-                    &encoder->state, (ttag_t)key_int, PyLong_AsLongLong(value));
+                    &encoder->state, (ttag_t)key_int, PyLong_AsLongLong(value)
+                );
             } else if (type == TIFF_SSHORT) {
                 status = ImagingLibTiffSetField(
-                    &encoder->state, (ttag_t)key_int, (INT16)PyLong_AsLong(value));
+                    &encoder->state, (ttag_t)key_int, (INT16)PyLong_AsLong(value)
+                );
             } else if (type == TIFF_SLONG) {
                 status = ImagingLibTiffSetField(
-                    &encoder->state, (ttag_t)key_int, (INT32)PyLong_AsLong(value));
+                    &encoder->state, (ttag_t)key_int, (INT32)PyLong_AsLong(value)
+                );
             } else if (type == TIFF_FLOAT) {
                 status = ImagingLibTiffSetField(
-                    &encoder->state, (ttag_t)key_int, (FLOAT32)PyFloat_AsDouble(value));
+                    &encoder->state, (ttag_t)key_int, (FLOAT32)PyFloat_AsDouble(value)
+                );
             } else if (type == TIFF_DOUBLE) {
                 status = ImagingLibTiffSetField(
-                    &encoder->state, (ttag_t)key_int, (FLOAT64)PyFloat_AsDouble(value));
+                    &encoder->state, (ttag_t)key_int, (FLOAT64)PyFloat_AsDouble(value)
+                );
             } else if (type == TIFF_SBYTE) {
                 status = ImagingLibTiffSetField(
-                    &encoder->state, (ttag_t)key_int, (INT8)PyLong_AsLong(value));
+                    &encoder->state, (ttag_t)key_int, (INT8)PyLong_AsLong(value)
+                );
             } else if (type == TIFF_ASCII) {
                 status = ImagingLibTiffSetField(
-                    &encoder->state, (ttag_t)key_int, PyBytes_AsString(value));
+                    &encoder->state, (ttag_t)key_int, PyBytes_AsString(value)
+                );
             } else if (type == TIFF_RATIONAL) {
                 status = ImagingLibTiffSetField(
-                    &encoder->state, (ttag_t)key_int, (FLOAT64)PyFloat_AsDouble(value));
+                    &encoder->state, (ttag_t)key_int, (FLOAT64)PyFloat_AsDouble(value)
+                );
             } else {
                 TRACE(
                     ("Unhandled type for key %d : %s \n",
                      key_int,
-                     PyBytes_AsString(PyObject_Str(value))));
+                     PyBytes_AsString(PyObject_Str(value)))
+                );
             }
         }
         if (!status) {
@@ -991,7 +1025,8 @@ get_qtables_arrays(PyObject *qtables, int *qtablesLen) {
     if (num_tables < 1 || num_tables > NUM_QUANT_TBLS) {
         PyErr_SetString(
             PyExc_ValueError,
-            "Not a valid number of quantization tables. Should be between 1 and 4.");
+            "Not a valid number of quantization tables. Should be between 1 and 4."
+        );
         Py_DECREF(tables);
         return NULL;
     }
@@ -1080,7 +1115,8 @@ PyImaging_JpegEncoderNew(PyObject *self, PyObject *args) {
             &extra,
             &extra_size,
             &rawExif,
-            &rawExifLen)) {
+            &rawExifLen
+        )) {
         return NULL;
     }
 
@@ -1250,7 +1286,8 @@ PyImaging_Jpeg2KEncoderNew(PyObject *self, PyObject *args) {
             &fd,
             &comment,
             &comment_size,
-            &plt)) {
+            &plt
+        )) {
         return NULL;
     }
 
@@ -1307,7 +1344,8 @@ PyImaging_Jpeg2KEncoderNew(PyObject *self, PyObject *args) {
 
     j2k_decode_coord_tuple(offset, &context->offset_x, &context->offset_y);
     j2k_decode_coord_tuple(
-        tile_offset, &context->tile_offset_x, &context->tile_offset_y);
+        tile_offset, &context->tile_offset_x, &context->tile_offset_y
+    );
     j2k_decode_coord_tuple(tile_size, &context->tile_size_x, &context->tile_size_y);
 
     /* Error on illegal tile offsets */
@@ -1317,7 +1355,8 @@ PyImaging_Jpeg2KEncoderNew(PyObject *self, PyObject *args) {
             PyErr_SetString(
                 PyExc_ValueError,
                 "JPEG 2000 tile offset too small; top left tile must "
-                "intersect image area");
+                "intersect image area"
+            );
             Py_DECREF(encoder);
             return NULL;
         }
@@ -1325,8 +1364,8 @@ PyImaging_Jpeg2KEncoderNew(PyObject *self, PyObject *args) {
         if (context->tile_offset_x > context->offset_x ||
             context->tile_offset_y > context->offset_y) {
             PyErr_SetString(
-                PyExc_ValueError,
+                PyExc_ValueError, "JPEG 2000 tile offset too large to cover image area"
-                "JPEG 2000 tile offset too large to cover image area");
+            );
             Py_DECREF(encoder);
             return NULL;
         }
@@ -1360,7 +1399,8 @@ PyImaging_Jpeg2KEncoderNew(PyObject *self, PyObject *args) {
 
     j2k_decode_coord_tuple(cblk_size, &context->cblk_width, &context->cblk_height);
     j2k_decode_coord_tuple(
-        precinct_size, &context->precinct_width, &context->precinct_height);
+        precinct_size, &context->precinct_width, &context->precinct_height
+    );
 
     context->irreversible = PyObject_IsTrue(irreversible);
     context->progression = prog_order;

src/libImaging/Access.c

@@ -36,7 +36,8 @@ add_item(const char *mode) {
             "AccessInit: hash collision: %d for both %s and %s\n",
             i,
             mode,
-            access_table[i].mode);
+            access_table[i].mode
+        );
         exit(1);
     }
     access_table[i].mode = mode;

src/libImaging/BcnDecode.c

@@ -243,7 +243,8 @@ static const bc7_mode_info bc7_modes[] = {
     {1, 0, 2, 1, 5, 6, 0, 0, 2, 3},
     {1, 0, 2, 0, 7, 8, 0, 0, 2, 2},
     {1, 0, 0, 0, 7, 7, 1, 0, 4, 0},
-    {2, 6, 0, 0, 5, 5, 1, 0, 2, 0}};
+    {2, 6, 0, 0, 5, 5, 1, 0, 2, 0}
+};
 
 /* Subset indices:
    Table.P2, 1 bit per index */
@@ -254,7 +255,8 @@ static const UINT16 bc7_si2[] = {
     0x718e, 0x399c, 0xaaaa, 0xf0f0, 0x5a5a, 0x33cc, 0x3c3c, 0x55aa, 0x9696, 0xa55a,
     0x73ce, 0x13c8, 0x324c, 0x3bdc, 0x6996, 0xc33c, 0x9966, 0x0660, 0x0272, 0x04e4,
     0x4e40, 0x2720, 0xc936, 0x936c, 0x39c6, 0x639c, 0x9336, 0x9cc6, 0x817e, 0xe718,
-    0xccf0, 0x0fcc, 0x7744, 0xee22};
+    0xccf0, 0x0fcc, 0x7744, 0xee22
+};
 
 /* Table.P3, 2 bits per index */
 static const UINT32 bc7_si3[] = {
@@ -267,20 +269,23 @@ static const UINT32 bc7_si3[] = {
     0x66660000, 0xa5a0a5a0, 0x50a050a0, 0x69286928, 0x44aaaa44, 0x66666600, 0xaa444444,
     0x54a854a8, 0x95809580, 0x96969600, 0xa85454a8, 0x80959580, 0xaa141414, 0x96960000,
     0xaaaa1414, 0xa05050a0, 0xa0a5a5a0, 0x96000000, 0x40804080, 0xa9a8a9a8, 0xaaaaaa44,
-    0x2a4a5254};
+    0x2a4a5254
+};
 
 /* Anchor indices:
    Table.A2 */
-static const char bc7_ai0[] = {
+static const char bc7_ai0[] = {15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15,
-    15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 2,  8, 2, 2, 8,
+                               15, 15, 15, 15, 2,  8,  2,  2,  8,  8,  15, 2,  8,
-    8,  15, 2,  8,  2,  2,  8,  8,  2,  2,  15, 15, 6,  8,  2,  8,  15, 15, 2, 8, 2, 2,
+                               2,  2,  8,  8,  2,  2,  15, 15, 6,  8,  2,  8,  15,
-    2,  15, 15, 6,  6,  2,  6,  8,  15, 15, 2,  2,  15, 15, 15, 15, 15, 2,  2, 15};
+                               15, 2,  8,  2,  2,  2,  15, 15, 6,  6,  2,  6,  8,
+                               15, 15, 2,  2,  15, 15, 15, 15, 15, 2,  2,  15};
 
 /* Table.A3a */
-static const char bc7_ai1[] = {
+static const char bc7_ai1[] = {3,  3,  15, 15, 8,  3,  15, 15, 8,  8,  6,  6,  6,
-    3,  3,  15, 15, 8, 3,  15, 15, 8,  8,  6, 6,  6, 5,  3, 3,  3,  3,  8,  15, 3,  3,
+                               5,  3,  3,  3,  3,  8,  15, 3,  3,  6,  10, 5,  8,
-    6,  10, 5,  8,  8, 6,  8,  5,  15, 15, 8, 15, 3, 5,  6, 10, 8,  15, 15, 3,  15, 5,
+                               8,  6,  8,  5,  15, 15, 8,  15, 3,  5,  6,  10, 8,
-    15, 15, 15, 15, 3, 15, 5,  5,  5,  8,  5, 10, 5, 10, 8, 13, 15, 12, 3,  3};
+                               15, 15, 3,  15, 5,  15, 15, 15, 15, 3,  15, 5,  5,
+                               5,  8,  5,  10, 5,  10, 8,  13, 15, 12, 3,  3};
 
 /* Table.A3b */
 static const char bc7_ai2[] = {15, 8,  8,  3,  15, 15, 3,  8,  15, 15, 15, 15, 15,
@@ -293,7 +298,8 @@ static const char bc7_ai2[] = {15, 8,  8,  3,  15, 15, 3,  8,  15, 15, 15, 15, 1
 static const char bc7_weights2[] = {0, 21, 43, 64};
 static const char bc7_weights3[] = {0, 9, 18, 27, 37, 46, 55, 64};
 static const char bc7_weights4[] = {
-    0, 4, 9, 13, 17, 21, 26, 30, 34, 38, 43, 47, 51, 55, 60, 64};
+    0, 4, 9, 13, 17, 21, 26, 30, 34, 38, 43, 47, 51, 55, 60, 64
+};
 
 static const char *
 bc7_get_weights(int n) {
@@ -526,7 +532,8 @@ static const bc6_mode_info bc6_modes[] = {
     {1, 0, 0, 10, 10, 10, 10},
     {1, 1, 0, 11, 9, 9, 9},
     {1, 1, 0, 12, 8, 8, 8},
-    {1, 1, 0, 16, 4, 4, 4}};
+    {1, 1, 0, 16, 4, 4, 4}
+};
 
 /* Table.F, encoded as a sequence of bit indices */
 static const UINT8 bc6_bit_packings[][75] = {
@@ -591,7 +598,8 @@ static const UINT8 bc6_bit_packings[][75] = {
      64, 65, 66, 67, 68, 69, 70, 71, 27, 26, 80, 81, 82, 83, 84, 85, 86, 87, 43, 42},
     {0,  1,  2,  3,  4,  5,  6,  7,  8,  9,  16, 17, 18, 19, 20, 21, 22, 23, 24, 25,
      32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 48, 49, 50, 51, 15, 14, 13, 12, 11, 10,
-     64, 65, 66, 67, 31, 30, 29, 28, 27, 26, 80, 81, 82, 83, 47, 46, 45, 44, 43, 42}};
+     64, 65, 66, 67, 31, 30, 29, 28, 27, 26, 80, 81, 82, 83, 47, 46, 45, 44, 43, 42}
+};
 
 static void
 bc6_sign_extend(UINT16 *v, int prec) {
@@ -830,7 +838,8 @@ decode_bcn(
     int bytes,
     int N,
     int C,
-    char *pixel_format) {
+    char *pixel_format
+) {
     int ymax = state->ysize + state->yoff;
     const UINT8 *ptr = src;
     switch (N) {

src/libImaging/BoxBlur.c

@@ -13,7 +13,8 @@ void static inline ImagingLineBoxBlur32(
     int edgeA,
     int edgeB,
     UINT32 ww,
-    UINT32 fw) {
+    UINT32 fw
+) {
     int x;
     UINT32 acc[4];
     UINT32 bulk[4];
@@ -109,7 +110,8 @@ void static inline ImagingLineBoxBlur8(
     int edgeA,
     int edgeB,
     UINT32 ww,
-    UINT32 fw) {
+    UINT32 fw
+) {
     int x;
     UINT32 acc;
     UINT32 bulk;
@@ -198,7 +200,8 @@ ImagingHorizontalBoxBlur(Imaging imOut, Imaging imIn, float floatRadius) {
                 edgeA,
                 edgeB,
                 ww,
-                fw);
+                fw
+            );
             if (imIn == imOut) {
                 // Commit.
                 memcpy(imOut->image8[y], lineOut, imIn->xsize);
@@ -214,7 +217,8 @@ ImagingHorizontalBoxBlur(Imaging imOut, Imaging imIn, float floatRadius) {
                 edgeA,
                 edgeB,
                 ww,
-                fw);
+                fw
+            );
             if (imIn == imOut) {
                 // Commit.
                 memcpy(imOut->image32[y], lineOut, imIn->xsize * 4);
@@ -315,11 +319,13 @@ _gaussian_blur_radius(float radius, int passes) {
 
 Imaging
 ImagingGaussianBlur(
-    Imaging imOut, Imaging imIn, float xradius, float yradius, int passes) {
+    Imaging imOut, Imaging imIn, float xradius, float yradius, int passes
+) {
     return ImagingBoxBlur(
         imOut,
         imIn,
         _gaussian_blur_radius(xradius, passes),
         _gaussian_blur_radius(yradius, passes),
-        passes);
+        passes
+    );
 }

src/libImaging/Chops.c

@@ -142,7 +142,8 @@ ImagingChopSoftLight(Imaging imIn1, Imaging imIn2) {
     CHOP2(
         (((255 - in1[x]) * (in1[x] * in2[x])) / 65536) +
             (in1[x] * (255 - ((255 - in1[x]) * (255 - in2[x]) / 255))) / 255,
-        NULL);
+        NULL
+    );
 }
 
 Imaging
@@ -150,7 +151,8 @@ ImagingChopHardLight(Imaging imIn1, Imaging imIn2) {
     CHOP2(
         (in2[x] < 128) ? ((in1[x] * in2[x]) / 127)
                        : 255 - (((255 - in2[x]) * (255 - in1[x])) / 127),
-        NULL);
+        NULL
+    );
 }
 
 Imaging
@@ -158,5 +160,6 @@ ImagingOverlay(Imaging imIn1, Imaging imIn2) {
     CHOP2(
         (in1[x] < 128) ? ((in1[x] * in2[x]) / 127)
                        : 255 - (((255 - in1[x]) * (255 - in2[x])) / 127),
-        NULL);
+        NULL
+    );
 }

src/libImaging/ColorLUT.c

@@ -63,7 +63,8 @@ ImagingColorLUT3D_linear(
     int size1D,
     int size2D,
     int size3D,
-    INT16 *table) {
+    INT16 *table
+) {
     /* This float to int conversion doesn't have rounding
        error compensation (+0.5) for two reasons:
        1. As we don't hit the highest value,
@@ -112,7 +113,8 @@ ImagingColorLUT3D_linear(
                                            index2D >> SCALE_BITS,
                                            index3D >> SCALE_BITS,
                                            size1D,
-                                           size1D_2D);
+                                           size1D_2D
+                                       );
             INT16 result[4], left[4], right[4];
             INT16 leftleft[4], leftright[4], rightleft[4], rightright[4];
 
@@ -123,19 +125,22 @@ ImagingColorLUT3D_linear(
                     leftright,
                     &table[idx + size1D * 3],
                     &table[idx + size1D * 3 + 3],
-                    shift1D);
+                    shift1D
+                );
                 interpolate3(left, leftleft, leftright, shift2D);
 
                 interpolate3(
                     rightleft,
                     &table[idx + size1D_2D * 3],
                     &table[idx + size1D_2D * 3 + 3],
-                    shift1D);
+                    shift1D
+                );
                 interpolate3(
                     rightright,
                     &table[idx + size1D_2D * 3 + size1D * 3],
                     &table[idx + size1D_2D * 3 + size1D * 3 + 3],
-                    shift1D);
+                    shift1D
+                );
                 interpolate3(right, rightleft, rightright, shift2D);
 
                 interpolate3(result, left, right, shift3D);
@@ -144,7 +149,8 @@ ImagingColorLUT3D_linear(
                     clip8(result[0]),
                     clip8(result[1]),
                     clip8(result[2]),
-                    rowIn[x * 4 + 3]);
+                    rowIn[x * 4 + 3]
+                );
                 memcpy(rowOut + x * sizeof(v), &v, sizeof(v));
             }
 
@@ -155,19 +161,22 @@ ImagingColorLUT3D_linear(
                     leftright,
                     &table[idx + size1D * 4],
                     &table[idx + size1D * 4 + 4],
-                    shift1D);
+                    shift1D
+                );
                 interpolate4(left, leftleft, leftright, shift2D);
 
                 interpolate4(
                     rightleft,
                     &table[idx + size1D_2D * 4],
                     &table[idx + size1D_2D * 4 + 4],
-                    shift1D);
+                    shift1D
+                );
                 interpolate4(
                     rightright,
                     &table[idx + size1D_2D * 4 + size1D * 4],
                     &table[idx + size1D_2D * 4 + size1D * 4 + 4],
-                    shift1D);
+                    shift1D
+                );
                 interpolate4(right, rightleft, rightright, shift2D);
 
                 interpolate4(result, left, right, shift3D);
@@ -176,7 +185,8 @@ ImagingColorLUT3D_linear(
                     clip8(result[0]),
                     clip8(result[1]),
                     clip8(result[2]),
-                    clip8(result[3]));
+                    clip8(result[3])
+                );
                 memcpy(rowOut + x * sizeof(v), &v, sizeof(v));
             }
         }

src/libImaging/Convert.c

@@ -1044,7 +1044,8 @@ static struct {
     {"I;16L", "F", I16L_F},
     {"I;16B", "F", I16B_F},
 
-    {NULL}};
+    {NULL}
+};
 
 /* FIXME: translate indexed versions to pointer versions below this line */
 
@@ -1316,7 +1317,8 @@ frompalette(Imaging imOut, Imaging imIn, const char *mode) {
             (UINT8 *)imOut->image[y],
             (UINT8 *)imIn->image[y],
             imIn->xsize,
-            imIn->palette);
+            imIn->palette
+        );
     }
     ImagingSectionLeave(&cookie);
 
@@ -1328,11 +1330,8 @@ frompalette(Imaging imOut, Imaging imIn, const char *mode) {
 #endif
 static Imaging
 topalette(
-    Imaging imOut,
+    Imaging imOut, Imaging imIn, const char *mode, ImagingPalette inpalette, int dither
-    Imaging imIn,
+) {
-    const char *mode,
-    ImagingPalette inpalette,
-    int dither) {
     ImagingSectionCookie cookie;
     int alpha;
     int x, y;
@@ -1623,7 +1622,8 @@ tobilevel(Imaging imOut, Imaging imIn) {
 
 static Imaging
 convert(
-    Imaging imOut, Imaging imIn, const char *mode, ImagingPalette palette, int dither) {
+    Imaging imOut, Imaging imIn, const char *mode, ImagingPalette palette, int dither
+) {
     ImagingSectionCookie cookie;
     ImagingShuffler convert;
     int y;
@@ -1677,7 +1677,8 @@ convert(
 #else
         static char buf[100];
         snprintf(
-            buf, 100, "conversion from %.10s to %.10s not supported", imIn->mode, mode);
+            buf, 100, "conversion from %.10s to %.10s not supported", imIn->mode, mode
+        );
         return (Imaging)ImagingError_ValueError(buf);
 #endif
     }
@@ -1727,18 +1728,16 @@ ImagingConvertTransparent(Imaging imIn, const char *mode, int r, int g, int b) {
         if (strcmp(mode, "RGBa") == 0) {
             premultiplied = 1;
         }
-    } else if (
+    } else if (strcmp(imIn->mode, "RGB") == 0 &&
-        strcmp(imIn->mode, "RGB") == 0 &&
+               (strcmp(mode, "LA") == 0 || strcmp(mode, "La") == 0)) {
-        (strcmp(mode, "LA") == 0 || strcmp(mode, "La") == 0)) {
         convert = rgb2la;
         source_transparency = 1;
         if (strcmp(mode, "La") == 0) {
             premultiplied = 1;
         }
-    } else if (
+    } else if ((strcmp(imIn->mode, "1") == 0 || strcmp(imIn->mode, "I") == 0 ||
-        (strcmp(imIn->mode, "1") == 0 || strcmp(imIn->mode, "I") == 0 ||
+                strcmp(imIn->mode, "I;16") == 0 || strcmp(imIn->mode, "L") == 0) &&
-         strcmp(imIn->mode, "I;16") == 0 || strcmp(imIn->mode, "L") == 0) &&
+               (strcmp(mode, "RGBA") == 0 || strcmp(mode, "LA") == 0)) {
-        (strcmp(mode, "RGBA") == 0 || strcmp(mode, "LA") == 0)) {
         if (strcmp(imIn->mode, "1") == 0) {
             convert = bit2rgb;
         } else if (strcmp(imIn->mode, "I") == 0) {
@@ -1756,7 +1755,8 @@ ImagingConvertTransparent(Imaging imIn, const char *mode, int r, int g, int b) {
             100,
             "conversion from %.10s to %.10s not supported in convert_transparent",
             imIn->mode,
-            mode);
+            mode
+        );
         return (Imaging)ImagingError_ValueError(buf);
     }
 

src/libImaging/ConvertYCbCr.c

@@ -47,7 +47,8 @@ static INT16 Y_R[] = {
     4019, 4038, 4057, 4076, 4095, 4114, 4133, 4153, 4172, 4191, 4210, 4229, 4248, 4267,
     4286, 4306, 4325, 4344, 4363, 4382, 4401, 4420, 4440, 4459, 4478, 4497, 4516, 4535,
     4554, 4574, 4593, 4612, 4631, 4650, 4669, 4688, 4707, 4727, 4746, 4765, 4784, 4803,
-    4822, 4841, 4861, 4880};
+    4822, 4841, 4861, 4880
+};
 
 static INT16 Y_G[] = {
     0,    38,   75,   113,  150,  188,  225,  263,  301,  338,  376,  413,  451,  488,
@@ -68,7 +69,8 @@ static INT16 Y_G[] = {
     7889, 7927, 7964, 8002, 8040, 8077, 8115, 8152, 8190, 8227, 8265, 8303, 8340, 8378,
     8415, 8453, 8490, 8528, 8566, 8603, 8641, 8678, 8716, 8753, 8791, 8828, 8866, 8904,
     8941, 8979, 9016, 9054, 9091, 9129, 9167, 9204, 9242, 9279, 9317, 9354, 9392, 9430,
-    9467, 9505, 9542, 9580};
+    9467, 9505, 9542, 9580
+};
 
 static INT16 Y_B[] = {
     0,    7,    15,   22,   29,   36,   44,   51,   58,   66,   73,   80,   88,   95,
@@ -89,7 +91,8 @@ static INT16 Y_B[] = {
     1532, 1539, 1547, 1554, 1561, 1569, 1576, 1583, 1591, 1598, 1605, 1612, 1620, 1627,
     1634, 1642, 1649, 1656, 1663, 1671, 1678, 1685, 1693, 1700, 1707, 1715, 1722, 1729,
     1736, 1744, 1751, 1758, 1766, 1773, 1780, 1788, 1795, 1802, 1809, 1817, 1824, 1831,
-    1839, 1846, 1853, 1860};
+    1839, 1846, 1853, 1860
+};
 
 static INT16 Cb_R[] = {
     0,     -10,   -21,   -31,   -42,   -53,   -64,   -75,   -85,   -96,   -107,  -118,
@@ -113,7 +116,8 @@ static INT16 Cb_R[] = {
     -2332, -2342, -2353, -2364, -2375, -2386, -2396, -2407, -2418, -2429, -2440, -2450,
     -2461, -2472, -2483, -2494, -2504, -2515, -2526, -2537, -2548, -2558, -2569, -2580,
     -2591, -2602, -2612, -2623, -2634, -2645, -2656, -2666, -2677, -2688, -2699, -2710,
-    -2720, -2731, -2742, -2753};
+    -2720, -2731, -2742, -2753
+};
 
 static INT16 Cb_G[] = {
     0,     -20,   -41,   -63,   -84,   -105,  -126,  -147,  -169,  -190,  -211,  -232,
@@ -137,7 +141,8 @@ static INT16 Cb_G[] = {
     -4578, -4600, -4621, -4642, -4663, -4684, -4706, -4727, -4748, -4769, -4790, -4812,
     -4833, -4854, -4875, -4896, -4918, -4939, -4960, -4981, -5002, -5024, -5045, -5066,
     -5087, -5108, -5130, -5151, -5172, -5193, -5214, -5236, -5257, -5278, -5299, -5320,
-    -5342, -5363, -5384, -5405};
+    -5342, -5363, -5384, -5405
+};
 
 static INT16 Cb_B[] = {
     0,    32,   64,   96,   128,  160,  192,  224,  256,  288,  320,  352,  384,  416,
@@ -158,7 +163,8 @@ static INT16 Cb_B[] = {
     6720, 6752, 6784, 6816, 6848, 6880, 6912, 6944, 6976, 7008, 7040, 7072, 7104, 7136,
     7168, 7200, 7232, 7264, 7296, 7328, 7360, 7392, 7424, 7456, 7488, 7520, 7552, 7584,
     7616, 7648, 7680, 7712, 7744, 7776, 7808, 7840, 7872, 7904, 7936, 7968, 8000, 8032,
-    8064, 8096, 8128, 8160};
+    8064, 8096, 8128, 8160
+};
 
 #define Cr_R Cb_B
 
@@ -184,7 +190,8 @@ static INT16 Cr_G[] = {
     -5787, -5814, -5841, -5867, -5894, -5921, -5948, -5975, -6001, -6028, -6055, -6082,
     -6109, -6135, -6162, -6189, -6216, -6243, -6269, -6296, -6323, -6350, -6376, -6403,
     -6430, -6457, -6484, -6510, -6537, -6564, -6591, -6618, -6644, -6671, -6698, -6725,
-    -6752, -6778, -6805, -6832};
+    -6752, -6778, -6805, -6832
+};
 
 static INT16 Cr_B[] = {
     0,     -4,    -9,    -15,   -20,   -25,   -30,   -35,   -41,   -46,   -51,   -56,
@@ -208,7 +215,8 @@ static INT16 Cr_B[] = {
     -1123, -1128, -1133, -1139, -1144, -1149, -1154, -1159, -1165, -1170, -1175, -1180,
     -1185, -1191, -1196, -1201, -1206, -1211, -1217, -1222, -1227, -1232, -1238, -1243,
     -1248, -1253, -1258, -1264, -1269, -1274, -1279, -1284, -1290, -1295, -1300, -1305,
-    -1310, -1316, -1321, -1326};
+    -1310, -1316, -1321, -1326
+};
 
 static INT16 R_Cr[] = {
     -11484, -11394, -11305, -11215, -11125, -11036, -10946, -10856, -10766, -10677,
@@ -236,7 +244,8 @@ static INT16 R_Cr[] = {
     8255,   8345,   8434,   8524,   8614,   8704,   8793,   8883,   8973,   9063,
     9152,   9242,   9332,   9421,   9511,   9601,   9691,   9780,   9870,   9960,
     10050,  10139,  10229,  10319,  10408,  10498,  10588,  10678,  10767,  10857,
-    10947,  11037,  11126,  11216,  11306,  11395};
+    10947,  11037,  11126,  11216,  11306,  11395
+};
 
 static INT16 G_Cb[] = {
     2819,  2797,  2775,  2753,  2731,  2709,  2687,  2665,  2643,  2621,  2599,  2577,
@@ -260,7 +269,8 @@ static INT16 G_Cb[] = {
     -1937, -1959, -1981, -2003, -2025, -2047, -2069, -2091, -2113, -2135, -2157, -2179,
     -2201, -2224, -2246, -2268, -2290, -2312, -2334, -2356, -2378, -2400, -2422, -2444,
     -2466, -2488, -2510, -2532, -2554, -2576, -2598, -2620, -2642, -2664, -2686, -2708,
-    -2730, -2752, -2774, -2796};
+    -2730, -2752, -2774, -2796
+};
 
 static INT16 G_Cr[] = {
     5850,  5805,  5759,  5713,  5667,  5622,  5576,  5530,  5485,  5439,  5393,  5347,
@@ -284,7 +294,8 @@ static INT16 G_Cr[] = {
     -4021, -4067, -4112, -4158, -4204, -4250, -4295, -4341, -4387, -4432, -4478, -4524,
     -4569, -4615, -4661, -4707, -4752, -4798, -4844, -4889, -4935, -4981, -5027, -5072,
     -5118, -5164, -5209, -5255, -5301, -5346, -5392, -5438, -5484, -5529, -5575, -5621,
-    -5666, -5712, -5758, -5804};
+    -5666, -5712, -5758, -5804
+};
 
 static INT16 B_Cb[] = {
     -14515, -14402, -14288, -14175, -14062, -13948, -13835, -13721, -13608, -13495,
@@ -312,7 +323,8 @@ static INT16 B_Cb[] = {
     10434,  10547,  10660,  10774,  10887,  11001,  11114,  11227,  11341,  11454,
     11568,  11681,  11794,  11908,  12021,  12135,  12248,  12361,  12475,  12588,
     12702,  12815,  12929,  13042,  13155,  13269,  13382,  13496,  13609,  13722,
-    13836,  13949,  14063,  14176,  14289,  14403};
+    13836,  13949,  14063,  14176,  14289,  14403
+};
 
 void
 ImagingConvertRGB2YCbCr(UINT8 *out, const UINT8 *in, int pixels) {

src/libImaging/Dib.c

@@ -95,7 +95,8 @@ ImagingNewDIB(const char *mode, int xsize, int ysize) {
     }
 
     dib->bitmap = CreateDIBSection(
-        dib->dc, dib->info, DIB_RGB_COLORS, (void **)&dib->bits, NULL, 0);
+        dib->dc, dib->info, DIB_RGB_COLORS, (void **)&dib->bits, NULL, 0
+    );
     if (!dib->bitmap) {
         free(dib->info);
         free(dib);
@@ -218,7 +219,8 @@ ImagingPasteDIB(ImagingDIB dib, Imaging im, int xy[4]) {
             dib->bits + dib->linesize * (dib->ysize - (xy[1] + y) - 1) +
                 xy[0] * dib->pixelsize,
             im->image[y],
-            im->xsize);
+            im->xsize
+        );
     }
 }
 
@@ -251,7 +253,8 @@ ImagingDrawDIB(ImagingDIB dib, void *dc, int dst[4], int src[4]) {
             dib->bits,
             dib->info,
             DIB_RGB_COLORS,
-            SRCCOPY);
+            SRCCOPY
+        );
     } else {
         /* stretchblt (displays) */
         if (dib->palette != 0) {
@@ -268,7 +271,8 @@ ImagingDrawDIB(ImagingDIB dib, void *dc, int dst[4], int src[4]) {
             src[1],
             src[2] - src[0],
             src[3] - src[1],
-            SRCCOPY);
+            SRCCOPY
+        );
     }
 }
 

src/libImaging/Draw.c

@@ -120,9 +120,8 @@ hline8(Imaging im, int x0, int y0, int x1, int ink) {
         if (x0 <= x1) {
             pixelwidth = strncmp(im->mode, "I;16", 4) == 0 ? 2 : 1;
             memset(
-                im->image8[y0] + x0 * pixelwidth,
+                im->image8[y0] + x0 * pixelwidth, (UINT8)ink, (x1 - x0 + 1) * pixelwidth
-                (UINT8)ink,
+            );
-                (x1 - x0 + 1) * pixelwidth);
         }
     }
 }
@@ -408,7 +407,8 @@ x_cmp(const void *x0, const void *x1) {
 
 static void
 draw_horizontal_lines(
-    Imaging im, int n, Edge *e, int ink, int *x_pos, int y, hline_handler hline) {
+    Imaging im, int n, Edge *e, int ink, int *x_pos, int y, hline_handler hline
+) {
     int i;
     for (i = 0; i < n; i++) {
         if (e[i].ymin == y && e[i].ymin == e[i].ymax) {
@@ -440,13 +440,8 @@ draw_horizontal_lines(
  */
 static inline int
 polygon_generic(
-    Imaging im,
+    Imaging im, int n, Edge *e, int ink, int eofill, hline_handler hline, int hasAlpha
-    int n,
+) {
-    Edge *e,
-    int ink,
-    int eofill,
-    hline_handler hline,
-    int hasAlpha) {
     Edge **edge_table;
     float *xx;
     int edge_count = 0;
@@ -530,25 +525,29 @@ polygon_generic(
                                 other_edge->x0;
                             if (ymin == current->ymax) {
                                 if (current->dx > 0) {
-                                    xx[k] = fmax(
+                                    xx[k] =
-                                                adjacent_line_x,
+                                        fmax(
-                                                adjacent_line_x_other_edge) +
+                                            adjacent_line_x, adjacent_line_x_other_edge
-                                            1;
+                                        ) +
+                                        1;
                                 } else {
-                                    xx[k] = fmin(
+                                    xx[k] =
-                                                adjacent_line_x,
+                                        fmin(
-                                                adjacent_line_x_other_edge) -
+                                            adjacent_line_x, adjacent_line_x_other_edge
-                                            1;
+                                        ) -
+                                        1;
                                 }
                             } else {
                                 if (current->dx > 0) {
                                     xx[k] = fmin(
-                                        adjacent_line_x, adjacent_line_x_other_edge);
+                                        adjacent_line_x, adjacent_line_x_other_edge
+                                    );
                                 } else {
-                                    xx[k] = fmax(
+                                    xx[k] =
-                                                adjacent_line_x,
+                                        fmax(
-                                                adjacent_line_x_other_edge) +
+                                            adjacent_line_x, adjacent_line_x_other_edge
-                                            1;
+                                        ) +
+                                        1;
                                 }
                             }
                             break;
@@ -699,7 +698,8 @@ ImagingDrawLine(Imaging im, int x0, int y0, int x1, int y1, const void *ink_, in
 
 int
 ImagingDrawWideLine(
-    Imaging im, int x0, int y0, int x1, int y1, const void *ink_, int width, int op) {
+    Imaging im, int x0, int y0, int x1, int y1, const void *ink_, int width, int op
+) {
     DRAW *draw;
     INT32 ink;
     int dx, dy;
@@ -730,7 +730,8 @@ ImagingDrawWideLine(
             {x0 - dxmin, y0 + dymax},
             {x1 - dxmin, y1 + dymax},
             {x1 + dxmax, y1 - dymin},
-            {x0 + dxmax, y0 - dymin}};
+            {x0 + dxmax, y0 - dymin}
+        };
 
         add_edge(e + 0, vertices[0][0], vertices[0][1], vertices[1][0], vertices[1][1]);
         add_edge(e + 1, vertices[1][0], vertices[1][1], vertices[2][0], vertices[2][1]);
@@ -752,7 +753,8 @@ ImagingDrawRectangle(
     const void *ink_,
     int fill,
     int width,
-    int op) {
+    int op
+) {
     int i;
     int y;
     int tmp;
@@ -800,7 +802,8 @@ ImagingDrawRectangle(
 
 int
 ImagingDrawPolygon(
-    Imaging im, int count, int *xy, const void *ink_, int fill, int width, int op) {
+    Imaging im, int count, int *xy, const void *ink_, int fill, int width, int op
+) {
     int i, n, x0, y0, x1, y1;
     DRAW *draw;
     INT32 ink;
@@ -851,7 +854,8 @@ ImagingDrawPolygon(
         if (width == 1) {
             for (i = 0; i < count - 1; i++) {
                 draw->line(
-                    im, xy[i * 2], xy[i * 2 + 1], xy[i * 2 + 2], xy[i * 2 + 3], ink);
+                    im, xy[i * 2], xy[i * 2 + 1], xy[i * 2 + 2], xy[i * 2 + 3], ink
+                );
             }
             draw->line(im, xy[i * 2], xy[i * 2 + 1], xy[0], xy[1], ink);
         } else {
@@ -864,10 +868,12 @@ ImagingDrawPolygon(
                     xy[i * 2 + 3],
                     ink_,
                     width,
-                    op);
+                    op
+                );
             }
             ImagingDrawWideLine(
-                im, xy[i * 2], xy[i * 2 + 1], xy[0], xy[1], ink_, width, op);
+                im, xy[i * 2], xy[i * 2 + 1], xy[0], xy[1], ink_, width, op
+            );
         }
     }
 
@@ -877,7 +883,8 @@ ImagingDrawPolygon(
 int
 ImagingDrawBitmap(Imaging im, int x0, int y0, Imaging bitmap, const void *ink, int op) {
     return ImagingFill2(
-        im, ink, bitmap, x0, y0, x0 + bitmap->xsize, y0 + bitmap->ysize);
+        im, ink, bitmap, x0, y0, x0 + bitmap->xsize, y0 + bitmap->ysize
+    );
 }
 
 /* -------------------------------------------------------------------- */
@@ -1086,7 +1093,8 @@ clip_tree_transpose(clip_node *root) {
 // segments, i.e. something like correct bracket sequences.
 int
 clip_tree_do_clip(
-    clip_node *root, int32_t x0, int32_t y, int32_t x1, event_list **ret) {
+    clip_node *root, int32_t x0, int32_t y, int32_t x1, event_list **ret
+) {
     if (root == NULL) {
         event_list *start = malloc(sizeof(event_list));
         if (!start) {
@@ -1223,7 +1231,8 @@ typedef struct {
 } clip_ellipse_state;
 
 typedef void (*clip_ellipse_init)(
-    clip_ellipse_state *, int32_t, int32_t, int32_t, float, float);
+    clip_ellipse_state *, int32_t, int32_t, int32_t, float, float
+);
 
 void
 debug_clip_tree(clip_node *root, int space) {
@@ -1335,7 +1344,8 @@ arc_init(clip_ellipse_state *s, int32_t a, int32_t b, int32_t w, float al, float
 // A chord line.
 void
 chord_line_init(
-    clip_ellipse_state *s, int32_t a, int32_t b, int32_t w, float al, float ar) {
+    clip_ellipse_state *s, int32_t a, int32_t b, int32_t w, float al, float ar
+) {
     ellipse_init(&s->st, a, b, a + b + 1);
 
     s->head = NULL;
@@ -1362,7 +1372,8 @@ chord_line_init(
 // Pie side.
 void
 pie_side_init(
-    clip_ellipse_state *s, int32_t a, int32_t b, int32_t w, float al, float _) {
+    clip_ellipse_state *s, int32_t a, int32_t b, int32_t w, float al, float _
+) {
     ellipse_init(&s->st, a, b, a + b + 1);
 
     s->head = NULL;
@@ -1478,7 +1489,8 @@ clip_ellipse_free(clip_ellipse_state *s) {
 
 int8_t
 clip_ellipse_next(
-    clip_ellipse_state *s, int32_t *ret_x0, int32_t *ret_y, int32_t *ret_x1) {
+    clip_ellipse_state *s, int32_t *ret_x0, int32_t *ret_y, int32_t *ret_x1
+) {
     int32_t x0, y, x1;
     while (s->head == NULL && ellipse_next(&s->st, &x0, &y, &x1) >= 0) {
         if (clip_tree_do_clip(s->root, x0, y, x1, &s->head) < 0) {
@@ -1512,7 +1524,8 @@ ellipseNew(
     const void *ink_,
     int fill,
     int width,
-    int op) {
+    int op
+) {
     DRAW *draw;
     INT32 ink;
     DRAWINIT();
@@ -1547,7 +1560,8 @@ clipEllipseNew(
     const void *ink_,
     int width,
     int op,
-    clip_ellipse_init init) {
+    clip_ellipse_init init
+) {
     DRAW *draw;
     INT32 ink;
     DRAWINIT();
@@ -1580,7 +1594,8 @@ arcNew(
     float end,
     const void *ink_,
     int width,
-    int op) {
+    int op
+) {
     return clipEllipseNew(im, x0, y0, x1, y1, start, end, ink_, width, op, arc_init);
 }
 
@@ -1595,7 +1610,8 @@ chordNew(
     float end,
     const void *ink_,
     int width,
-    int op) {
+    int op
+) {
     return clipEllipseNew(im, x0, y0, x1, y1, start, end, ink_, width, op, chord_init);
 }
 
@@ -1610,9 +1626,11 @@ chordLineNew(
     float end,
     const void *ink_,
     int width,
-    int op) {
+    int op
+) {
     return clipEllipseNew(
-        im, x0, y0, x1, y1, start, end, ink_, width, op, chord_line_init);
+        im, x0, y0, x1, y1, start, end, ink_, width, op, chord_line_init
+    );
 }
 
 static int
@@ -1626,7 +1644,8 @@ pieNew(
     float end,
     const void *ink_,
     int width,
-    int op) {
+    int op
+) {
     return clipEllipseNew(im, x0, y0, x1, y1, start, end, ink_, width, op, pie_init);
 }
 
@@ -1640,7 +1659,8 @@ pieSideNew(
     float start,
     const void *ink_,
     int width,
-    int op) {
+    int op
+) {
     return clipEllipseNew(im, x0, y0, x1, y1, start, 0, ink_, width, op, pie_side_init);
 }
 
@@ -1654,7 +1674,8 @@ ImagingDrawEllipse(
     const void *ink,
     int fill,
     int width,
-    int op) {
+    int op
+) {
     return ellipseNew(im, x0, y0, x1, y1, ink, fill, width, op);
 }
 
@@ -1669,7 +1690,8 @@ ImagingDrawArc(
     float end,
     const void *ink,
     int width,
-    int op) {
+    int op
+) {
     normalize_angles(&start, &end);
     if (start + 360 == end) {
         return ImagingDrawEllipse(im, x0, y0, x1, y1, ink, 0, width, op);
@@ -1692,7 +1714,8 @@ ImagingDrawChord(
     const void *ink,
     int fill,
     int width,
-    int op) {
+    int op
+) {
     normalize_angles(&start, &end);
     if (start + 360 == end) {
         return ImagingDrawEllipse(im, x0, y0, x1, y1, ink, fill, width, op);
@@ -1722,7 +1745,8 @@ ImagingDrawPieslice(
     const void *ink,
     int fill,
     int width,
-    int op) {
+    int op
+) {
     normalize_angles(&start, &end);
     if (start + 360 == end) {
         return ellipseNew(im, x0, y0, x1, y1, ink, fill, width, op);
@@ -1850,13 +1874,8 @@ ImagingOutlineLine(ImagingOutline outline, float x1, float y1) {
 
 int
 ImagingOutlineCurve(
-    ImagingOutline outline,
+    ImagingOutline outline, float x1, float y1, float x2, float y2, float x3, float y3
-    float x1,
+) {
-    float y1,
-    float x2,
-    float y2,
-    float x3,
-    float y3) {
     Edge *e;
     int i;
     float xo, yo;
@@ -1970,7 +1989,8 @@ ImagingOutlineTransform(ImagingOutline outline, double a[6]) {
 
 int
 ImagingDrawOutline(
-    Imaging im, ImagingOutline outline, const void *ink_, int fill, int op) {
+    Imaging im, ImagingOutline outline, const void *ink_, int fill, int op
+) {
     DRAW *draw;
     INT32 ink;
 

src/libImaging/Fill.c

@@ -118,8 +118,8 @@ ImagingFillRadialGradient(const char *mode) {
 
     for (y = 0; y < 256; y++) {
         for (x = 0; x < 256; x++) {
-            d = (int)sqrt(
+            d = (int
-                (double)((x - 128) * (x - 128) + (y - 128) * (y - 128)) * 2.0);
+            )sqrt((double)((x - 128) * (x - 128) + (y - 128) * (y - 128)) * 2.0);
             if (d >= 255) {
                 d = 255;
             }

src/libImaging/Filter.c

@@ -60,7 +60,8 @@ ImagingExpand(Imaging imIn, int xmargin, int ymargin) {
 
     imOut = ImagingNewDirty(
         imIn->mode,
-        (ImagingNewParams){imIn->xsize + 2 * xmargin, imIn->ysize + 2 * ymargin});
+        (ImagingNewParams){imIn->xsize + 2 * xmargin, imIn->ysize + 2 * ymargin}
+    );
     if (!imOut) {
         return NULL;
     }
@@ -370,7 +371,8 @@ ImagingFilter5x5(Imaging imOut, Imaging im, const float *kernel, float offset) {
                 }
             }
             memcpy(
-                out + x * sizeof(UINT32), in0 + x * sizeof(UINT32), sizeof(UINT32) * 2);
+                out + x * sizeof(UINT32), in0 + x * sizeof(UINT32), sizeof(UINT32) * 2
+            );
         }
     }
     memcpy(imOut->image[y], im->image[y], im->linesize);

src/libImaging/Geometry.c

@@ -720,7 +720,8 @@ ImagingGenericTransform(
     ImagingTransformMap transform,
     void *transform_data,
     int filterid,
-    int fill) {
+    int fill
+) {
     /* slow generic transformation.  use ImagingTransformAffine or
        ImagingScaleAffine where possible. */
 
@@ -775,14 +776,8 @@ ImagingGenericTransform(
 
 static Imaging
 ImagingScaleAffine(
-    Imaging imOut,
+    Imaging imOut, Imaging imIn, int x0, int y0, int x1, int y1, double a[6], int fill
-    Imaging imIn,
+) {
-    int x0,
-    int y0,
-    int x1,
-    int y1,
-    double a[6],
-    int fill) {
     /* scale, nearest neighbour resampling */
 
     ImagingSectionCookie cookie;
@@ -875,7 +870,8 @@ static inline int
 check_fixed(double a[6], int x, int y) {
     return (
         fabs(x * a[0] + y * a[1] + a[2]) < 32768.0 &&
-        fabs(x * a[3] + y * a[4] + a[5]) < 32768.0);
+        fabs(x * a[3] + y * a[4] + a[5]) < 32768.0
+    );
 }
 
 static inline Imaging
@@ -888,7 +884,8 @@ affine_fixed(
     int y1,
     double a[6],
     int filterid,
-    int fill) {
+    int fill
+) {
     /* affine transform, nearest neighbour resampling, fixed point
        arithmetics */
 
@@ -965,7 +962,8 @@ ImagingTransformAffine(
     int y1,
     double a[6],
     int filterid,
-    int fill) {
+    int fill
+) {
     /* affine transform, nearest neighbour resampling, floating point
        arithmetics*/
 
@@ -978,7 +976,8 @@ ImagingTransformAffine(
 
     if (filterid || imIn->type == IMAGING_TYPE_SPECIAL) {
         return ImagingGenericTransform(
-            imOut, imIn, x0, y0, x1, y1, affine_transform, a, filterid, fill);
+            imOut, imIn, x0, y0, x1, y1, affine_transform, a, filterid, fill
+        );
     }
 
     if (a[1] == 0 && a[3] == 0) {
@@ -1073,13 +1072,15 @@ ImagingTransform(
     int y1,
     double a[8],
     int filterid,
-    int fill) {
+    int fill
+) {
     ImagingTransformMap transform;
 
     switch (method) {
         case IMAGING_TRANSFORM_AFFINE:
             return ImagingTransformAffine(
-                imOut, imIn, x0, y0, x1, y1, a, filterid, fill);
+                imOut, imIn, x0, y0, x1, y1, a, filterid, fill
+            );
             break;
         case IMAGING_TRANSFORM_PERSPECTIVE:
             transform = perspective_transform;
@@ -1092,5 +1093,6 @@ ImagingTransform(
     }
 
     return ImagingGenericTransform(
-        imOut, imIn, x0, y0, x1, y1, transform, a, filterid, fill);
+        imOut, imIn, x0, y0, x1, y1, transform, a, filterid, fill
+    );
 }

src/libImaging/GetBBox.c

@@ -58,11 +58,10 @@ ImagingGetBBox(Imaging im, int bbox[4], int alpha_only) {
         INT32 mask = 0xffffffff;
         if (im->bands == 3) {
             ((UINT8 *)&mask)[3] = 0;
-        } else if (
+        } else if (alpha_only &&
-            alpha_only &&
+                   (strcmp(im->mode, "RGBa") == 0 || strcmp(im->mode, "RGBA") == 0 ||
-            (strcmp(im->mode, "RGBa") == 0 || strcmp(im->mode, "RGBA") == 0 ||
+                    strcmp(im->mode, "La") == 0 || strcmp(im->mode, "LA") == 0 ||
-             strcmp(im->mode, "La") == 0 || strcmp(im->mode, "LA") == 0 ||
+                    strcmp(im->mode, "PA") == 0)) {
-             strcmp(im->mode, "PA") == 0)) {
 #ifdef WORDS_BIGENDIAN
             mask = 0x000000ff;
 #else
@@ -246,13 +245,14 @@ getcolors32(Imaging im, int maxcolors, int *size) {
        code in Python 2.1.3; the exact implementation is borrowed from
        Python's Unicode property database (written by yours truly) /F */
 
-    static int SIZES[] = {
+    static int SIZES[] = {4,          3,  8,         3,  16,        3,  32,        5,
-        4,         3,  8,         3,  16,        3,  32,         5,  64,       3,
+                          64,         3,  128,       3,  256,       29, 512,       17,
-        128,       3,  256,       29, 512,       17, 1024,       9,  2048,     5,
+                          1024,       9,  2048,      5,  4096,      83, 8192,      27,
-        4096,      83, 8192,      27, 16384,     43, 32768,      3,  65536,    45,
+                          16384,      43, 32768,     3,  65536,     45, 131072,    9,
-        131072,    9,  262144,    39, 524288,    39, 1048576,    9,  2097152,  5,
+                          262144,     39, 524288,    39, 1048576,   9,  2097152,   5,
-        4194304,   3,  8388608,   33, 16777216,  27, 33554432,   9,  67108864, 71,
+                          4194304,    3,  8388608,   33, 16777216,  27, 33554432,  9,
-        134217728, 39, 268435456, 9,  536870912, 5,  1073741824, 83, 0};
+                          67108864,   71, 134217728, 39, 268435456, 9,  536870912, 5,
+                          1073741824, 83, 0};
 
     code_size = code_poly = code_mask = 0;
 

src/libImaging/GifEncode.c

@@ -79,7 +79,8 @@ glzwe(
     UINT8 *out_ptr,
     UINT32 *in_avail,
     UINT32 *out_avail,
-    UINT32 end_of_data) {
+    UINT32 end_of_data
+) {
     switch (st->entry_state) {
         case LZW_TRY_IN1:
 get_first_byte:
@@ -312,7 +313,8 @@ ImagingGifEncode(Imaging im, ImagingCodecState state, UINT8 *buf, int bytes) {
                 state->buffer,
                 (UINT8 *)im->image[state->y + state->yoff] +
                     state->xoff * im->pixelsize,
-                state->xsize);
+                state->xsize
+            );
             state->x = 0;
 
             /* step forward, according to the interlace settings */
@@ -348,7 +350,8 @@ ImagingGifEncode(Imaging im, ImagingCodecState state, UINT8 *buf, int bytes) {
             ptr,
             &in_avail,
             &out_avail,
-            state->state == FINISH);
+            state->state == FINISH
+        );
         out_used = sub_block_limit - ptr - out_avail;
         *sub_block_ptr += out_used;
         ptr += out_used;

src/libImaging/HexDecode.c

@@ -49,7 +49,8 @@ ImagingHexDecode(Imaging im, ImagingCodecState state, UINT8 *buf, Py_ssize_t byt
             if (++state->x >= state->bytes) {
                 /* Got a full line, unpack it */
                 state->shuffle(
-                    (UINT8 *)im->image[state->y], state->buffer, state->xsize);
+                    (UINT8 *)im->image[state->y], state->buffer, state->xsize
+                );
 
                 state->x = 0;
 

src/libImaging/Imaging.h

@@ -316,7 +316,8 @@ extern Imaging
 ImagingFill(Imaging im, const void *ink);
 extern int
 ImagingFill2(
-    Imaging into, const void *ink, Imaging mask, int x0, int y0, int x1, int y1);
+    Imaging into, const void *ink, Imaging mask, int x0, int y0, int x1, int y1
+);
 extern Imaging
 ImagingFillBand(Imaging im, int band, int color);
 extern Imaging
@@ -331,7 +332,8 @@ extern Imaging
 ImagingFlipTopBottom(Imaging imOut, Imaging imIn);
 extern Imaging
 ImagingGaussianBlur(
-    Imaging imOut, Imaging imIn, float xradius, float yradius, int passes);
+    Imaging imOut, Imaging imIn, float xradius, float yradius, int passes
+);
 extern Imaging
 ImagingGetBand(Imaging im, int band);
 extern Imaging
@@ -394,7 +396,8 @@ ImagingTransform(
     int y1,
     double a[8],
     int filter,
-    int fill);
+    int fill
+);
 extern Imaging
 ImagingUnsharpMask(Imaging imOut, Imaging im, float radius, int percent, int threshold);
 extern Imaging
@@ -407,7 +410,8 @@ ImagingColorLUT3D_linear(
     int size1D,
     int size2D,
     int size3D,
-    INT16 *table);
+    INT16 *table
+);
 
 extern Imaging
 ImagingCopy2(Imaging imOut, Imaging imIn);
@@ -461,7 +465,8 @@ ImagingDrawArc(
     float end,
     const void *ink,
     int width,
-    int op);
+    int op
+);
 extern int
 ImagingDrawBitmap(Imaging im, int x0, int y0, Imaging bitmap, const void *ink, int op);
 extern int
@@ -476,7 +481,8 @@ ImagingDrawChord(
     const void *ink,
     int fill,
     int width,
-    int op);
+    int op
+);
 extern int
 ImagingDrawEllipse(
     Imaging im,
@@ -487,12 +493,14 @@ ImagingDrawEllipse(
     const void *ink,
     int fill,
     int width,
-    int op);
+    int op
+);
 extern int
 ImagingDrawLine(Imaging im, int x0, int y0, int x1, int y1, const void *ink, int op);
 extern int
 ImagingDrawWideLine(
-    Imaging im, int x0, int y0, int x1, int y1, const void *ink, int width, int op);
+    Imaging im, int x0, int y0, int x1, int y1, const void *ink, int width, int op
+);
 extern int
 ImagingDrawPieslice(
     Imaging im,
@@ -505,12 +513,14 @@ ImagingDrawPieslice(
     const void *ink,
     int fill,
     int width,
-    int op);
+    int op
+);
 extern int
 ImagingDrawPoint(Imaging im, int x, int y, const void *ink, int op);
 extern int
 ImagingDrawPolygon(
-    Imaging im, int points, int *xy, const void *ink, int fill, int width, int op);
+    Imaging im, int points, int *xy, const void *ink, int fill, int width, int op
+);
 extern int
 ImagingDrawRectangle(
     Imaging im,
@@ -521,7 +531,8 @@ ImagingDrawRectangle(
     const void *ink,
     int fill,
     int width,
-    int op);
+    int op
+);
 
 /* Level 2 graphics (WORK IN PROGRESS) */
 extern ImagingOutline
@@ -531,7 +542,8 @@ ImagingOutlineDelete(ImagingOutline outline);
 
 extern int
 ImagingDrawOutline(
-    Imaging im, ImagingOutline outline, const void *ink, int fill, int op);
+    Imaging im, ImagingOutline outline, const void *ink, int fill, int op
+);
 
 extern int
 ImagingOutlineMove(ImagingOutline outline, float x, float y);
@@ -539,7 +551,8 @@ extern int
 ImagingOutlineLine(ImagingOutline outline, float x, float y);
 extern int
 ImagingOutlineCurve(
-    ImagingOutline outline, float x1, float y1, float x2, float y2, float x3, float y3);
+    ImagingOutline outline, float x1, float y1, float x2, float y2, float x3, float y3
+);
 extern int
 ImagingOutlineTransform(ImagingOutline outline, double a[6]);
 
@@ -566,7 +579,8 @@ ImagingSavePPM(Imaging im, const char *filename);
 /* Codecs */
 typedef struct ImagingCodecStateInstance *ImagingCodecState;
 typedef int (*ImagingCodec)(
-    Imaging im, ImagingCodecState state, UINT8 *buffer, int bytes);
+    Imaging im, ImagingCodecState state, UINT8 *buffer, int bytes
+);
 
 extern int
 ImagingBcnDecode(Imaging im, ImagingCodecState state, UINT8 *buffer, Py_ssize_t bytes);
@@ -596,7 +610,8 @@ ImagingJpegEncode(Imaging im, ImagingCodecState state, UINT8 *buffer, int bytes)
 #ifdef HAVE_OPENJPEG
 extern int
 ImagingJpeg2KDecode(
-    Imaging im, ImagingCodecState state, UINT8 *buffer, Py_ssize_t bytes);
+    Imaging im, ImagingCodecState state, UINT8 *buffer, Py_ssize_t bytes
+);
 extern int
 ImagingJpeg2KDecodeCleanup(ImagingCodecState state);
 extern int
@@ -607,7 +622,8 @@ ImagingJpeg2KEncodeCleanup(ImagingCodecState state);
 #ifdef HAVE_LIBTIFF
 extern int
 ImagingLibTiffDecode(
-    Imaging im, ImagingCodecState state, UINT8 *buffer, Py_ssize_t bytes);
+    Imaging im, ImagingCodecState state, UINT8 *buffer, Py_ssize_t bytes
+);
 extern int
 ImagingLibTiffEncode(Imaging im, ImagingCodecState state, UINT8 *buffer, int bytes);
 #endif
@@ -619,7 +635,8 @@ extern int
 ImagingMspDecode(Imaging im, ImagingCodecState state, UINT8 *buffer, Py_ssize_t bytes);
 extern int
 ImagingPackbitsDecode(
-    Imaging im, ImagingCodecState state, UINT8 *buffer, Py_ssize_t bytes);
+    Imaging im, ImagingCodecState state, UINT8 *buffer, Py_ssize_t bytes
+);
 extern int
 ImagingPcdDecode(Imaging im, ImagingCodecState state, UINT8 *buffer, Py_ssize_t bytes);
 extern int
@@ -632,13 +649,16 @@ extern int
 ImagingRawEncode(Imaging im, ImagingCodecState state, UINT8 *buffer, int bytes);
 extern int
 ImagingSgiRleDecode(
-    Imaging im, ImagingCodecState state, UINT8 *buffer, Py_ssize_t bytes);
+    Imaging im, ImagingCodecState state, UINT8 *buffer, Py_ssize_t bytes
+);
 extern int
 ImagingSunRleDecode(
-    Imaging im, ImagingCodecState state, UINT8 *buffer, Py_ssize_t bytes);
+    Imaging im, ImagingCodecState state, UINT8 *buffer, Py_ssize_t bytes
+);
 extern int
 ImagingTgaRleDecode(
-    Imaging im, ImagingCodecState state, UINT8 *buffer, Py_ssize_t bytes);
+    Imaging im, ImagingCodecState state, UINT8 *buffer, Py_ssize_t bytes
+);
 extern int
 ImagingTgaRleEncode(Imaging im, ImagingCodecState state, UINT8 *buffer, int bytes);
 extern int

src/libImaging/Jpeg2KDecode.c

@@ -67,7 +67,8 @@ j2k_skip(OPJ_OFF_T p_nb_bytes, void *p_user_data) {
 /* -------------------------------------------------------------------- */
 
 typedef void (*j2k_unpacker_t)(
-    opj_image_t *in, const JPEG2KTILEINFO *tileInfo, const UINT8 *data, Imaging im);
+    opj_image_t *in, const JPEG2KTILEINFO *tileInfo, const UINT8 *data, Imaging im
+);
 
 struct j2k_decode_unpacker {
     const char *mode;
@@ -89,10 +90,8 @@ j2ku_shift(unsigned x, int n) {
 
 static void
 j2ku_gray_l(
-    opj_image_t *in,
+    opj_image_t *in, const JPEG2KTILEINFO *tileinfo, const UINT8 *tiledata, Imaging im
-    const JPEG2KTILEINFO *tileinfo,
+) {
-    const UINT8 *tiledata,
-    Imaging im) {
     unsigned x0 = tileinfo->x0 - in->x0, y0 = tileinfo->y0 - in->y0;
     unsigned w = tileinfo->x1 - tileinfo->x0;
     unsigned h = tileinfo->y1 - tileinfo->y0;
@@ -145,10 +144,8 @@ j2ku_gray_l(
 
 static void
 j2ku_gray_i(
-    opj_image_t *in,
+    opj_image_t *in, const JPEG2KTILEINFO *tileinfo, const UINT8 *tiledata, Imaging im
-    const JPEG2KTILEINFO *tileinfo,
+) {
-    const UINT8 *tiledata,
-    Imaging im) {
     unsigned x0 = tileinfo->x0 - in->x0, y0 = tileinfo->y0 - in->y0;
     unsigned w = tileinfo->x1 - tileinfo->x0;
     unsigned h = tileinfo->y1 - tileinfo->y0;
@@ -204,10 +201,8 @@ j2ku_gray_i(
 
 static void
 j2ku_gray_rgb(
-    opj_image_t *in,
+    opj_image_t *in, const JPEG2KTILEINFO *tileinfo, const UINT8 *tiledata, Imaging im
-    const JPEG2KTILEINFO *tileinfo,
+) {
-    const UINT8 *tiledata,
-    Imaging im) {
     unsigned x0 = tileinfo->x0 - in->x0, y0 = tileinfo->y0 - in->y0;
     unsigned w = tileinfo->x1 - tileinfo->x0;
     unsigned h = tileinfo->y1 - tileinfo->y0;
@@ -268,10 +263,8 @@ j2ku_gray_rgb(
 
 static void
 j2ku_graya_la(
-    opj_image_t *in,
+    opj_image_t *in, const JPEG2KTILEINFO *tileinfo, const UINT8 *tiledata, Imaging im
-    const JPEG2KTILEINFO *tileinfo,
+) {
-    const UINT8 *tiledata,
-    Imaging im) {
     unsigned x0 = tileinfo->x0 - in->x0, y0 = tileinfo->y0 - in->y0;
     unsigned w = tileinfo->x1 - tileinfo->x0;
     unsigned h = tileinfo->y1 - tileinfo->y0;
@@ -347,10 +340,8 @@ j2ku_graya_la(
 
 static void
 j2ku_srgb_rgb(
-    opj_image_t *in,
+    opj_image_t *in, const JPEG2KTILEINFO *tileinfo, const UINT8 *tiledata, Imaging im
-    const JPEG2KTILEINFO *tileinfo,
+) {
-    const UINT8 *tiledata,
-    Imaging im) {
     unsigned x0 = tileinfo->x0 - in->x0, y0 = tileinfo->y0 - in->y0;
     unsigned w = tileinfo->x1 - tileinfo->x0;
     unsigned h = tileinfo->y1 - tileinfo->y0;
@@ -413,10 +404,8 @@ j2ku_srgb_rgb(
 
 static void
 j2ku_sycc_rgb(
-    opj_image_t *in,
+    opj_image_t *in, const JPEG2KTILEINFO *tileinfo, const UINT8 *tiledata, Imaging im
-    const JPEG2KTILEINFO *tileinfo,
+) {
-    const UINT8 *tiledata,
-    Imaging im) {
     unsigned x0 = tileinfo->x0 - in->x0, y0 = tileinfo->y0 - in->y0;
     unsigned w = tileinfo->x1 - tileinfo->x0;
     unsigned h = tileinfo->y1 - tileinfo->y0;
@@ -482,10 +471,8 @@ j2ku_sycc_rgb(
 
 static void
 j2ku_srgba_rgba(
-    opj_image_t *in,
+    opj_image_t *in, const JPEG2KTILEINFO *tileinfo, const UINT8 *tiledata, Imaging im
-    const JPEG2KTILEINFO *tileinfo,
+) {
-    const UINT8 *tiledata,
-    Imaging im) {
     unsigned x0 = tileinfo->x0 - in->x0, y0 = tileinfo->y0 - in->y0;
     unsigned w = tileinfo->x1 - tileinfo->x0;
     unsigned h = tileinfo->y1 - tileinfo->y0;
@@ -547,10 +534,8 @@ j2ku_srgba_rgba(
 
 static void
 j2ku_sycca_rgba(
-    opj_image_t *in,
+    opj_image_t *in, const JPEG2KTILEINFO *tileinfo, const UINT8 *tiledata, Imaging im
-    const JPEG2KTILEINFO *tileinfo,
+) {
-    const UINT8 *tiledata,
-    Imaging im) {
     unsigned x0 = tileinfo->x0 - in->x0, y0 = tileinfo->y0 - in->y0;
     unsigned w = tileinfo->x1 - tileinfo->x0;
     unsigned h = tileinfo->y1 - tileinfo->y0;
@@ -815,7 +800,8 @@ j2k_decode_entry(Imaging im, ImagingCodecState state) {
                 &tile_info.x1,
                 &tile_info.y1,
                 &tile_info.nb_comps,
-                &should_continue)) {
+                &should_continue
+            )) {
             state->errcode = IMAGING_CODEC_BROKEN;
             state->state = J2K_STATE_FAILED;
             goto quick_exit;
@@ -906,7 +892,8 @@ j2k_decode_entry(Imaging im, ImagingCodecState state) {
                 tile_info.tile_index,
                 (OPJ_BYTE *)state->buffer,
                 tile_info.data_size,
-                stream)) {
+                stream
+            )) {
             state->errcode = IMAGING_CODEC_BROKEN;
             state->state = J2K_STATE_FAILED;
             goto quick_exit;

src/libImaging/Jpeg2KEncode.c

@@ -89,7 +89,8 @@ j2k_seek(OPJ_OFF_T p_nb_bytes, void *p_user_data) {
 /* -------------------------------------------------------------------- */
 
 typedef void (*j2k_pack_tile_t)(
-    Imaging im, UINT8 *buf, unsigned x0, unsigned y0, unsigned w, unsigned h);
+    Imaging im, UINT8 *buf, unsigned x0, unsigned y0, unsigned w, unsigned h
+);
 
 static void
 j2k_pack_l(Imaging im, UINT8 *buf, unsigned x0, unsigned y0, unsigned w, unsigned h) {
@@ -157,7 +158,8 @@ j2k_pack_rgb(Imaging im, UINT8 *buf, unsigned x0, unsigned y0, unsigned w, unsig
 
 static void
 j2k_pack_rgba(
-    Imaging im, UINT8 *buf, unsigned x0, unsigned y0, unsigned w, unsigned h) {
+    Imaging im, UINT8 *buf, unsigned x0, unsigned y0, unsigned w, unsigned h
+) {
     UINT8 *pr = buf;
     UINT8 *pg = pr + w * h;
     UINT8 *pb = pg + w * h;
@@ -205,8 +207,8 @@ j2k_set_cinema_params(Imaging im, int components, opj_cparameters_t *params) {
 
     if (params->cp_cinema == OPJ_CINEMA4K_24) {
         float max_rate =
-            ((float)(components * im->xsize * im->ysize * 8) /
+            ((float)(components * im->xsize * im->ysize * 8) / (CINEMA_24_CS_LENGTH * 8)
-             (CINEMA_24_CS_LENGTH * 8));
+            );
 
         params->POC[0].tile = 1;
         params->POC[0].resno0 = 0;
@@ -241,8 +243,8 @@ j2k_set_cinema_params(Imaging im, int components, opj_cparameters_t *params) {
         params->max_comp_size = COMP_24_CS_MAX_LENGTH;
     } else {
         float max_rate =
-            ((float)(components * im->xsize * im->ysize * 8) /
+            ((float)(components * im->xsize * im->ysize * 8) / (CINEMA_48_CS_LENGTH * 8)
-             (CINEMA_48_CS_LENGTH * 8));
+            );
 
         for (n = 0; n < params->tcp_numlayers; ++n) {
             rate = 0;

src/libImaging/JpegDecode.c

@@ -206,9 +206,8 @@ ImagingJpegDecode(Imaging im, ImagingCodecState state, UINT8 *buf, Py_ssize_t by
                 context->cinfo.out_color_space = JCS_EXT_RGBX;
             }
 #endif
-            else if (
+            else if (strcmp(context->rawmode, "CMYK") == 0 ||
-                strcmp(context->rawmode, "CMYK") == 0 ||
+                     strcmp(context->rawmode, "CMYK;I") == 0) {
-                strcmp(context->rawmode, "CMYK;I") == 0) {
                 context->cinfo.out_color_space = JCS_CMYK;
             } else if (strcmp(context->rawmode, "YCbCr") == 0) {
                 context->cinfo.out_color_space = JCS_YCbCr;
@@ -256,7 +255,8 @@ ImagingJpegDecode(Imaging im, ImagingCodecState state, UINT8 *buf, Py_ssize_t by
                     (UINT8 *)im->image[state->y + state->yoff] +
                         state->xoff * im->pixelsize,
                     state->buffer,
-                    state->xsize);
+                    state->xsize
+                );
                 state->y++;
             }
             if (ok != 1) {

src/libImaging/JpegEncode.c

@@ -175,7 +175,8 @@ ImagingJpegEncode(Imaging im, ImagingCodecState state, UINT8 *buf, int bytes) {
                         i,
                         &context->qtables[i * DCTSIZE2],
                         quality,
-                        FALSE);
+                        FALSE
+                    );
                     context->cinfo.comp_info[i].quant_tbl_no = i;
                     last_q = i;
                 }
@@ -183,7 +184,8 @@ ImagingJpegEncode(Imaging im, ImagingCodecState state, UINT8 *buf, int bytes) {
                     // jpeg_set_defaults created two qtables internally, but we only
                     // wanted one.
                     jpeg_add_quant_table(
-                        &context->cinfo, 1, &context->qtables[0], quality, FALSE);
+                        &context->cinfo, 1, &context->qtables[0], quality, FALSE
+                    );
                 }
                 for (i = last_q; i < context->cinfo.num_components; i++) {
                     context->cinfo.comp_info[i].quant_tbl_no = last_q;
@@ -273,7 +275,8 @@ ImagingJpegEncode(Imaging im, ImagingCodecState state, UINT8 *buf, int bytes) {
                     &context->cinfo,
                     JPEG_APP0 + 1,
                     (unsigned char *)context->rawExif,
-                    context->rawExifLen);
+                    context->rawExifLen
+                );
             }
 
             state->state++;
@@ -289,7 +292,8 @@ ImagingJpegEncode(Imaging im, ImagingCodecState state, UINT8 *buf, int bytes) {
                 memcpy(
                     context->destination.pub.next_output_byte,
                     context->extra + context->extra_offset,
-                    n);
+                    n
+                );
                 context->destination.pub.next_output_byte += n;
                 context->destination.pub.free_in_buffer -= n;
                 context->extra_offset += n;
@@ -309,7 +313,8 @@ ImagingJpegEncode(Imaging im, ImagingCodecState state, UINT8 *buf, int bytes) {
                     &context->cinfo,
                     JPEG_COM,
                     (unsigned char *)context->comment,
-                    context->comment_size);
+                    context->comment_size
+                );
             }
             state->state++;
 
@@ -324,7 +329,8 @@ ImagingJpegEncode(Imaging im, ImagingCodecState state, UINT8 *buf, int bytes) {
                     state->buffer,
                     (UINT8 *)im->image[state->y + state->yoff] +
                         state->xoff * im->pixelsize,
-                    state->xsize);
+                    state->xsize
+                );
                 ok = jpeg_write_scanlines(&context->cinfo, &state->buffer, 1);
                 if (ok != 1) {
                     break;

src/libImaging/PackDecode.c

@@ -17,7 +17,8 @@
 
 int
 ImagingPackbitsDecode(
-    Imaging im, ImagingCodecState state, UINT8 *buf, Py_ssize_t bytes) {
+    Imaging im, ImagingCodecState state, UINT8 *buf, Py_ssize_t bytes
+) {
     UINT8 n;
     UINT8 *ptr;
     int i;
@@ -79,7 +80,8 @@ ImagingPackbitsDecode(
                 (UINT8 *)im->image[state->y + state->yoff] +
                     state->xoff * im->pixelsize,
                 state->buffer,
-                state->xsize);
+                state->xsize
+            );
 
             state->x = 0;
 

src/libImaging/Paste.c

@@ -33,7 +33,8 @@ paste(
     int sy,
     int xsize,
     int ysize,
-    int pixelsize) {
+    int pixelsize
+) {
     /* paste opaque region */
 
     int y;
@@ -59,7 +60,8 @@ paste_mask_1(
     int sy,
     int xsize,
     int ysize,
-    int pixelsize) {
+    int pixelsize
+) {
     /* paste with mode "1" mask */
 
     int x, y;
@@ -120,7 +122,8 @@ paste_mask_L(
     int sy,
     int xsize,
     int ysize,
-    int pixelsize) {
+    int pixelsize
+) {
     /* paste with mode "L" matte */
 
     int x, y;
@@ -167,7 +170,8 @@ paste_mask_RGBA(
     int sy,
     int xsize,
     int ysize,
-    int pixelsize) {
+    int pixelsize
+) {
     /* paste with mode "RGBA" matte */
 
     int x, y;
@@ -214,7 +218,8 @@ paste_mask_RGBa(
     int sy,
     int xsize,
     int ysize,
-    int pixelsize) {
+    int pixelsize
+) {
     /* paste with mode "RGBa" matte */
 
     int x, y;
@@ -252,7 +257,8 @@ paste_mask_RGBa(
 
 int
 ImagingPaste(
-    Imaging imOut, Imaging imIn, Imaging imMask, int dx0, int dy0, int dx1, int dy1) {
+    Imaging imOut, Imaging imIn, Imaging imMask, int dx0, int dy0, int dx1, int dy1
+) {
     int xsize, ysize;
     int pixelsize;
     int sx0, sy0;
@@ -315,13 +321,15 @@ ImagingPaste(
     } else if (strcmp(imMask->mode, "LA") == 0 || strcmp(imMask->mode, "RGBA") == 0) {
         ImagingSectionEnter(&cookie);
         paste_mask_RGBA(
-            imOut, imIn, imMask, dx0, dy0, sx0, sy0, xsize, ysize, pixelsize);
+            imOut, imIn, imMask, dx0, dy0, sx0, sy0, xsize, ysize, pixelsize
+        );
         ImagingSectionLeave(&cookie);
 
     } else if (strcmp(imMask->mode, "RGBa") == 0) {
         ImagingSectionEnter(&cookie);
         paste_mask_RGBa(
-            imOut, imIn, imMask, dx0, dy0, sx0, sy0, xsize, ysize, pixelsize);
+            imOut, imIn, imMask, dx0, dy0, sx0, sy0, xsize, ysize, pixelsize
+        );
         ImagingSectionLeave(&cookie);
 
     } else {
@@ -334,13 +342,8 @@ ImagingPaste(
 
 static inline void
 fill(
-    Imaging imOut,
+    Imaging imOut, const void *ink_, int dx, int dy, int xsize, int ysize, int pixelsize
-    const void *ink_,
+) {
-    int dx,
-    int dy,
-    int xsize,
-    int ysize,
-    int pixelsize) {
     /* fill opaque region */
 
     int x, y;
@@ -378,7 +381,8 @@ fill_mask_1(
     int sy,
     int xsize,
     int ysize,
-    int pixelsize) {
+    int pixelsize
+) {
     /* fill with mode "1" mask */
 
     int x, y;
@@ -425,7 +429,8 @@ fill_mask_L(
     int sy,
     int xsize,
     int ysize,
-    int pixelsize) {
+    int pixelsize
+) {
     /* fill with mode "L" matte */
 
     int x, y, i;
@@ -484,7 +489,8 @@ fill_mask_RGBA(
     int sy,
     int xsize,
     int ysize,
-    int pixelsize) {
+    int pixelsize
+) {
     /* fill with mode "RGBA" matte */
 
     int x, y, i;
@@ -529,7 +535,8 @@ fill_mask_RGBa(
     int sy,
     int xsize,
     int ysize,
-    int pixelsize) {
+    int pixelsize
+) {
     /* fill with mode "RGBa" matte */
 
     int x, y, i;
@@ -565,13 +572,8 @@ fill_mask_RGBa(
 
 int
 ImagingFill2(
-    Imaging imOut,
+    Imaging imOut, const void *ink, Imaging imMask, int dx0, int dy0, int dx1, int dy1
-    const void *ink,
+) {
-    Imaging imMask,
-    int dx0,
-    int dy0,
-    int dx1,
-    int dy1) {
     ImagingSectionCookie cookie;
     int xsize, ysize;
     int pixelsize;

src/libImaging/PcxDecode.c

@@ -68,7 +68,8 @@ ImagingPcxDecode(Imaging im, ImagingCodecState state, UINT8 *buf, Py_ssize_t byt
                     memmove(
                         &state->buffer[i * state->xsize],
                         &state->buffer[i * stride],
-                        state->xsize);
+                        state->xsize
+                    );
                 }
             }
             /* Got a full line, unpack it */
@@ -76,7 +77,8 @@ ImagingPcxDecode(Imaging im, ImagingCodecState state, UINT8 *buf, Py_ssize_t byt
                 (UINT8 *)im->image[state->y + state->yoff] +
                     state->xoff * im->pixelsize,
                 state->buffer,
-                state->xsize);
+                state->xsize
+            );
 
             state->x = 0;
 

src/libImaging/PcxEncode.c

@@ -71,7 +71,8 @@ ImagingPcxEncode(Imaging im, ImagingCodecState state, UINT8 *buf, int bytes) {
                     state->buffer,
                     (UINT8 *)im->image[state->y + state->yoff] +
                         state->xoff * im->pixelsize,
-                    state->xsize);
+                    state->xsize
+                );
 
                 state->y += 1;
 

src/libImaging/Point.c

@@ -197,8 +197,8 @@ ImagingPoint(Imaging imIn, const char *mode, const void *table) {
     return imOut;
 
 mode_mismatch:
-    return (Imaging)ImagingError_ValueError(
+    return (Imaging
-        "point operation not supported for this mode");
+    )ImagingError_ValueError("point operation not supported for this mode");
 }
 
 Imaging

src/libImaging/Quant.c

@@ -103,7 +103,8 @@ static uint32_t
 pixel_hash(const HashTable *h, const Pixel pixel) {
     PixelHashData *d = (PixelHashData *)hashtable_get_user_data(h);
     return PIXEL_HASH(
-        pixel.c.r >> d->scale, pixel.c.g >> d->scale, pixel.c.b >> d->scale);
+        pixel.c.r >> d->scale, pixel.c.g >> d->scale, pixel.c.b >> d->scale
+    );
 }
 
 static int
@@ -111,9 +112,11 @@ pixel_cmp(const HashTable *h, const Pixel pixel1, const Pixel pixel2) {
     PixelHashData *d = (PixelHashData *)hashtable_get_user_data(h);
     uint32_t A, B;
     A = PIXEL_HASH(
-        pixel1.c.r >> d->scale, pixel1.c.g >> d->scale, pixel1.c.b >> d->scale);
+        pixel1.c.r >> d->scale, pixel1.c.g >> d->scale, pixel1.c.b >> d->scale
+    );
     B = PIXEL_HASH(
-        pixel2.c.r >> d->scale, pixel2.c.g >> d->scale, pixel2.c.b >> d->scale);
+        pixel2.c.r >> d->scale, pixel2.c.g >> d->scale, pixel2.c.b >> d->scale
+    );
     return (A == B) ? 0 : ((A < B) ? -1 : 1);
 }
 
@@ -129,7 +132,8 @@ new_count_func(const HashTable *h, const Pixel key, uint32_t *val) {
 
 static void
 rehash_collide(
-    const HashTable *h, Pixel *keyp, uint32_t *valp, Pixel newkey, uint32_t newval) {
+    const HashTable *h, Pixel *keyp, uint32_t *valp, Pixel newkey, uint32_t newval
+) {
     *valp += newval;
 }
 
@@ -157,7 +161,8 @@ create_pixel_hash(Pixel *pixelData, uint32_t nPixels) {
 #endif
     for (i = 0; i < nPixels; i++) {
         if (!hashtable_insert_or_update_computed(
-                hash, pixelData[i], new_count_func, exists_count_func)) {
+                hash, pixelData[i], new_count_func, exists_count_func
+            )) {
             ;
         }
         while (hashtable_get_count(hash) > MAX_HASH_ENTRIES) {
@@ -335,7 +340,8 @@ splitlists(
     PixelList *nt[2][3],
     uint32_t nCount[2],
     int axis,
-    uint32_t pixelCount) {
+    uint32_t pixelCount
+) {
     uint32_t left;
 
     PixelList *l, *r, *c, *n;
@@ -387,7 +393,8 @@ splitlists(
                     _prevCount[2],
                     _nextCount[0],
                     _nextCount[1],
-                    _nextCount[2]);
+                    _nextCount[2]
+                );
                 exit(1);
             }
         }
@@ -531,12 +538,14 @@ split(BoxNode *node) {
             if (node->tail[_i]->next[_i]) {
                 printf("tail is not tail\n");
                 printf(
-                    "node->tail[%d]->next[%d]=%p\n", _i, _i, node->tail[_i]->next[_i]);
+                    "node->tail[%d]->next[%d]=%p\n", _i, _i, node->tail[_i]->next[_i]
+                );
             }
             if (node->head[_i]->prev[_i]) {
                 printf("head is not head\n");
                 printf(
-                    "node->head[%d]->prev[%d]=%p\n", _i, _i, node->head[_i]->prev[_i]);
+                    "node->head[%d]->prev[%d]=%p\n", _i, _i, node->head[_i]->prev[_i]
+                );
             }
         }
 
@@ -573,14 +582,16 @@ split(BoxNode *node) {
                     _prevCount[2],
                     _nextCount[0],
                     _nextCount[1],
-                    _nextCount[2]);
+                    _nextCount[2]
+                );
             }
         }
     }
 #endif
     node->axis = axis;
     if (!splitlists(
-            node->head, node->tail, heads, tails, newCounts, axis, node->pixelCount)) {
+            node->head, node->tail, heads, tails, newCounts, axis, node->pixelCount
+        )) {
 #ifndef NO_OUTPUT
         printf("list split failed.\n");
 #endif
@@ -772,7 +783,8 @@ _distance_index_cmp(const void *a, const void *b) {
 
 static int
 resort_distance_tables(
-    uint32_t *avgDist, uint32_t **avgDistSortKey, Pixel *p, uint32_t nEntries) {
+    uint32_t *avgDist, uint32_t **avgDistSortKey, Pixel *p, uint32_t nEntries
+) {
     uint32_t i, j, k;
     uint32_t **skRow;
     uint32_t *skElt;
@@ -801,7 +813,8 @@ resort_distance_tables(
 
 static int
 build_distance_tables(
-    uint32_t *avgDist, uint32_t **avgDistSortKey, Pixel *p, uint32_t nEntries) {
+    uint32_t *avgDist, uint32_t **avgDistSortKey, Pixel *p, uint32_t nEntries
+) {
     uint32_t i, j;
     DistanceWithIndex *dwi;
 
@@ -841,7 +854,8 @@ map_image_pixels(
     uint32_t nPaletteEntries,
     uint32_t *avgDist,
     uint32_t **avgDistSortKey,
-    uint32_t *pixelArray) {
+    uint32_t *pixelArray
+) {
     uint32_t *aD, **aDSK;
     uint32_t idx;
     uint32_t i, j;
@@ -888,7 +902,8 @@ map_image_pixels_from_quantized_pixels(
     uint32_t **avgDistSortKey,
     uint32_t *pixelArray,
     uint32_t *avg[3],
-    uint32_t *count) {
+    uint32_t *count
+) {
     uint32_t *aD, **aDSK;
     uint32_t idx;
     uint32_t i, j;
@@ -946,7 +961,8 @@ map_image_pixels_from_median_box(
     HashTable *medianBoxHash,
     uint32_t *avgDist,
     uint32_t **avgDistSortKey,
-    uint32_t *pixelArray) {
+    uint32_t *pixelArray
+) {
     uint32_t *aD, **aDSK;
     uint32_t idx;
     uint32_t i, j;
@@ -998,7 +1014,8 @@ compute_palette_from_median_cut(
     uint32_t nPixels,
     HashTable *medianBoxHash,
     Pixel **palette,
-    uint32_t nPaletteEntries) {
+    uint32_t nPaletteEntries
+) {
     uint32_t i;
     uint32_t paletteEntry;
     Pixel *p;
@@ -1055,7 +1072,8 @@ compute_palette_from_median_cut(
             printf(
                 "panic - paletteEntry>=nPaletteEntries (%d>=%d)\n",
                 (int)paletteEntry,
-                (int)nPaletteEntries);
+                (int)nPaletteEntries
+            );
 #endif
             for (i = 0; i < 3; i++) {
                 free(avg[i]);
@@ -1092,7 +1110,8 @@ compute_palette_from_median_cut(
 
 static int
 recompute_palette_from_averages(
-    Pixel *palette, uint32_t nPaletteEntries, uint32_t *avg[3], uint32_t *count) {
+    Pixel *palette, uint32_t nPaletteEntries, uint32_t *avg[3], uint32_t *count
+) {
     uint32_t i;
 
     for (i = 0; i < nPaletteEntries; i++) {
@@ -1111,7 +1130,8 @@ compute_palette_from_quantized_pixels(
     uint32_t nPaletteEntries,
     uint32_t *avg[3],
     uint32_t *count,
-    uint32_t *qp) {
+    uint32_t *qp
+) {
     uint32_t i;
 
     memset(count, 0, sizeof(uint32_t) * nPaletteEntries);
@@ -1145,7 +1165,8 @@ k_means(
     Pixel *paletteData,
     uint32_t nPaletteEntries,
     uint32_t *qp,
-    int threshold) {
+    int threshold
+) {
     uint32_t *avg[3];
     uint32_t *count;
     uint32_t i;
@@ -1194,16 +1215,19 @@ k_means(
     while (1) {
         if (!built) {
             compute_palette_from_quantized_pixels(
-                pixelData, nPixels, paletteData, nPaletteEntries, avg, count, qp);
+                pixelData, nPixels, paletteData, nPaletteEntries, avg, count, qp
+            );
             if (!build_distance_tables(
-                    avgDist, avgDistSortKey, paletteData, nPaletteEntries)) {
+                    avgDist, avgDistSortKey, paletteData, nPaletteEntries
+                )) {
                 goto error_3;
             }
             built = 1;
         } else {
             recompute_palette_from_averages(paletteData, nPaletteEntries, avg, count);
             resort_distance_tables(
-                avgDist, avgDistSortKey, paletteData, nPaletteEntries);
+                avgDist, avgDistSortKey, paletteData, nPaletteEntries
+            );
         }
         changes = map_image_pixels_from_quantized_pixels(
             pixelData,
@@ -1214,7 +1238,8 @@ k_means(
             avgDistSortKey,
             qp,
             avg,
-            count);
+            count
+        );
         if (changes < 0) {
             goto error_3;
         }
@@ -1273,7 +1298,8 @@ quantize(
     Pixel **palette,
     uint32_t *paletteLength,
     uint32_t **quantizedPixels,
-    int kmeans) {
+    int kmeans
+) {
     PixelList *hl[3];
     HashTable *h;
     BoxNode *root;
@@ -1399,7 +1425,8 @@ quantize(
     }
 
     if (!map_image_pixels_from_median_box(
-            pixelData, nPixels, p, nPaletteEntries, h, avgDist, avgDistSortKey, qp)) {
+            pixelData, nPixels, p, nPaletteEntries, h, avgDist, avgDistSortKey, qp
+        )) {
         goto error_7;
     }
 
@@ -1445,7 +1472,8 @@ quantize(
                                   _SQR(pixelData[i].c.b - p[qp[i]].c.b))),
                     sqrt((double)(_SQR(pixelData[i].c.r - p[bestmatch].c.r) +
                                   _SQR(pixelData[i].c.g - p[bestmatch].c.g) +
-                                  _SQR(pixelData[i].c.b - p[bestmatch].c.b))));
+                                  _SQR(pixelData[i].c.b - p[bestmatch].c.b)))
+                );
             }
         }
         hashtable_free(h2);
@@ -1545,7 +1573,8 @@ quantize2(
     Pixel **palette,
     uint32_t *paletteLength,
     uint32_t **quantizedPixels,
-    int kmeans) {
+    int kmeans
+) {
     HashTable *h;
     uint32_t i;
     uint32_t mean[3];
@@ -1609,7 +1638,8 @@ quantize2(
     }
 
     if (!map_image_pixels(
-            pixelData, nPixels, p, nQuantPixels, avgDist, avgDistSortKey, qp)) {
+            pixelData, nPixels, p, nQuantPixels, avgDist, avgDistSortKey, qp
+        )) {
         goto error_4;
     }
     if (kmeans > 0) {
@@ -1752,7 +1782,8 @@ ImagingQuantize(Imaging im, int colors, int mode, int kmeans) {
                 &palette,
                 &paletteLength,
                 &newData,
-                kmeans);
+                kmeans
+            );
             break;
         case 1:
             /* maximum coverage */
@@ -1763,7 +1794,8 @@ ImagingQuantize(Imaging im, int colors, int mode, int kmeans) {
                 &palette,
                 &paletteLength,
                 &newData,
-                kmeans);
+                kmeans
+            );
             break;
         case 2:
             result = quantize_octree(
@@ -1773,7 +1805,8 @@ ImagingQuantize(Imaging im, int colors, int mode, int kmeans) {
                 &palette,
                 &paletteLength,
                 &newData,
-                withAlpha);
+                withAlpha
+            );
             break;
         case 3:
 #ifdef HAVE_LIBIMAGEQUANT
@@ -1785,7 +1818,8 @@ ImagingQuantize(Imaging im, int colors, int mode, int kmeans) {
                 &palette,
                 &paletteLength,
                 &newData,
-                withAlpha);
+                withAlpha
+            );
 #else
             result = -1;
 #endif
@@ -1836,7 +1870,8 @@ ImagingQuantize(Imaging im, int colors, int mode, int kmeans) {
         if (result == -1) {
             return (Imaging)ImagingError_ValueError(
                 "dependency required by this method was not "
-                "enabled at compile time");
+                "enabled at compile time"
+            );
         }
 
         return (Imaging)ImagingError_ValueError("quantization error");

src/libImaging/QuantHash.c

@@ -132,7 +132,8 @@ _hashtable_resize(HashTable *h) {
 
 static int
 _hashtable_insert_node(
-    HashTable *h, HashNode *node, int resize, int update, CollisionFunc cf) {
+    HashTable *h, HashNode *node, int resize, int update, CollisionFunc cf
+) {
     uint32_t hash = h->hashFunc(h, node->key) % h->length;
     HashNode **n, *nv;
     int i;
@@ -207,7 +208,8 @@ _hashtable_insert(HashTable *h, HashKey_t key, HashVal_t val, int resize, int up
 
 int
 hashtable_insert_or_update_computed(
-    HashTable *h, HashKey_t key, ComputeFunc newFunc, ComputeFunc existsFunc) {
+    HashTable *h, HashKey_t key, ComputeFunc newFunc, ComputeFunc existsFunc
+) {
     HashNode **n, *nv;
     HashNode *t;
     int i;

src/libImaging/QuantHash.h

@@ -20,13 +20,12 @@ typedef uint32_t HashVal_t;
 
 typedef uint32_t (*HashFunc)(const HashTable *, const HashKey_t);
 typedef int (*HashCmpFunc)(const HashTable *, const HashKey_t, const HashKey_t);
-typedef void (*IteratorFunc)(
+typedef void (*IteratorFunc)(const HashTable *, const HashKey_t, const HashVal_t, void *);
-    const HashTable *, const HashKey_t, const HashVal_t, void *);
+typedef void (*IteratorUpdateFunc)(const HashTable *, const HashKey_t, HashVal_t *, void *);
-typedef void (*IteratorUpdateFunc)(
-    const HashTable *, const HashKey_t, HashVal_t *, void *);
 typedef void (*ComputeFunc)(const HashTable *, const HashKey_t, HashVal_t *);
 typedef void (*CollisionFunc)(
-    const HashTable *, HashKey_t *, HashVal_t *, HashKey_t, HashVal_t);
+    const HashTable *, HashKey_t *, HashVal_t *, HashKey_t, HashVal_t
+);
 
 HashTable *
 hashtable_new(HashFunc hf, HashCmpFunc cf);
@@ -42,7 +41,8 @@ int
 hashtable_lookup(const HashTable *h, const HashKey_t key, HashVal_t *valp);
 int
 hashtable_insert_or_update_computed(
-    HashTable *h, HashKey_t key, ComputeFunc newFunc, ComputeFunc existsFunc);
+    HashTable *h, HashKey_t key, ComputeFunc newFunc, ComputeFunc existsFunc
+);
 void *
 hashtable_set_user_data(HashTable *h, void *data);
 void *

src/libImaging/QuantOctree.c

@@ -107,11 +107,8 @@ free_color_cube(ColorCube cube) {
 
 static long
 color_bucket_offset_pos(
-    const ColorCube cube,
+    const ColorCube cube, unsigned int r, unsigned int g, unsigned int b, unsigned int a
-    unsigned int r,
+) {
-    unsigned int g,
-    unsigned int b,
-    unsigned int a) {
     return r << cube->rOffset | g << cube->gOffset | b << cube->bOffset |
            a << cube->aOffset;
 }
@@ -191,7 +188,8 @@ create_sorted_color_palette(const ColorCube cube) {
         buckets,
         cube->size,
         sizeof(struct _ColorBucket),
-        (int (*)(void const *, void const *)) & compare_bucket_count);
+        (int (*)(void const *, void const *)) & compare_bucket_count
+    );
 
     return buckets;
 }
@@ -212,7 +210,8 @@ copy_color_cube(
     unsigned int rBits,
     unsigned int gBits,
     unsigned int bBits,
-    unsigned int aBits) {
+    unsigned int aBits
+) {
     unsigned int r, g, b, a;
     long src_pos, dst_pos;
     unsigned int src_reduce[4] = {0}, dst_reduce[4] = {0};
@@ -262,15 +261,18 @@ copy_color_cube(
                         r >> src_reduce[0],
                         g >> src_reduce[1],
                         b >> src_reduce[2],
-                        a >> src_reduce[3]);
+                        a >> src_reduce[3]
+                    );
                     dst_pos = color_bucket_offset_pos(
                         result,
                         r >> dst_reduce[0],
                         g >> dst_reduce[1],
                         b >> dst_reduce[2],
-                        a >> dst_reduce[3]);
+                        a >> dst_reduce[3]
+                    );
                     add_bucket_values(
-                        &cube->buckets[src_pos], &result->buckets[dst_pos]);
+                        &cube->buckets[src_pos], &result->buckets[dst_pos]
+                    );
                 }
             }
         }
@@ -328,7 +330,8 @@ combined_palette(
     ColorBucket bucketsA,
     unsigned long nBucketsA,
     ColorBucket bucketsB,
-    unsigned long nBucketsB) {
+    unsigned long nBucketsB
+) {
     ColorBucket result;
     if (nBucketsA > LONG_MAX - nBucketsB ||
         (nBucketsA + nBucketsB) > LONG_MAX / sizeof(struct _ColorBucket)) {
@@ -366,7 +369,8 @@ map_image_pixels(
     const Pixel *pixelData,
     uint32_t nPixels,
     const ColorCube lookupCube,
-    uint32_t *pixelArray) {
+    uint32_t *pixelArray
+) {
     long i;
     for (i = 0; i < nPixels; i++) {
         pixelArray[i] = lookup_color(lookupCube, &pixelData[i]);
@@ -384,7 +388,8 @@ quantize_octree(
     Pixel **palette,
     uint32_t *paletteLength,
     uint32_t **quantizedPixels,
-    int withAlpha) {
+    int withAlpha
+) {
     ColorCube fineCube = NULL;
     ColorCube coarseCube = NULL;
     ColorCube lookupCube = NULL;
@@ -461,7 +466,8 @@ quantize_octree(
         subtract_color_buckets(
             coarseCube,
             &paletteBucketsFine[nAlreadySubtracted],
-            nFineColors - nAlreadySubtracted);
+            nFineColors - nAlreadySubtracted
+        );
     }
 
     /* create our palette buckets with fine and coarse combined */
@@ -470,7 +476,8 @@ quantize_octree(
         goto error;
     }
     paletteBuckets = combined_palette(
-        paletteBucketsCoarse, nCoarseColors, paletteBucketsFine, nFineColors);
+        paletteBucketsCoarse, nCoarseColors, paletteBucketsFine, nFineColors
+    );
 
     free(paletteBucketsFine);
     paletteBucketsFine = NULL;
@@ -491,7 +498,8 @@ quantize_octree(
     /* expand coarse cube (64) to larger fine cube (4k). the value of each
        coarse bucket is then present in the according 64 fine buckets. */
     lookupCube = copy_color_cube(
-        coarseLookupCube, cubeBits[0], cubeBits[1], cubeBits[2], cubeBits[3]);
+        coarseLookupCube, cubeBits[0], cubeBits[1], cubeBits[2], cubeBits[3]
+    );
     if (!lookupCube) {
         goto error;
     }

src/libImaging/QuantPngQuant.c

@@ -26,7 +26,8 @@ quantize_pngquant(
     Pixel **palette,
     uint32_t *paletteLength,
     uint32_t **quantizedPixels,
-    int withAlpha) {
+    int withAlpha
+) {
     int result = 0;
     liq_image *image = NULL;
     liq_attr *attr = NULL;

src/libImaging/QuantPngQuant.h

@@ -12,6 +12,7 @@ quantize_pngquant(
     Pixel **,
     uint32_t *,
     uint32_t **,
-    int);
+    int
+);
 
 #endif

src/libImaging/RankFilter.c

@@ -103,7 +103,8 @@ MakeRankFunction(UINT8) MakeRankFunction(INT32) MakeRankFunction(FLOAT32)
                     memcpy(                                                       \
                         buf + i * size,                                           \
                         &IMAGING_PIXEL_##type(im, x, y + i),                      \
-                        size * sizeof(type));                                     \
+                        size * sizeof(type)                                       \
+                    );                                                            \
                 }                                                                 \
                 IMAGING_PIXEL_##type(imOut, x, y) = Rank##type(buf, size2, rank); \
             }                                                                     \

src/libImaging/RawDecode.c

@@ -75,7 +75,8 @@ ImagingRawDecode(Imaging im, ImagingCodecState state, UINT8 *buf, Py_ssize_t byt
             (UINT8 *)im->image[state->y + state->yoff] + state->xoff * im->pixelsize,
             ptr,
             im,
-            state);
+            state
+        );
 
         ptr += state->bytes;
         bytes -= state->bytes;

src/libImaging/RawEncode.c

@@ -65,7 +65,8 @@ ImagingRawEncode(Imaging im, ImagingCodecState state, UINT8 *buf, int bytes) {
         state->shuffle(
             ptr,
             (UINT8 *)im->image[state->y + state->yoff] + state->xoff * im->pixelsize,
-            state->xsize);
+            state->xsize
+        );
 
         if (state->bytes > state->count) {
             /* zero-pad the buffer, if necessary */

src/libImaging/Reduce.c

@@ -82,7 +82,8 @@ ImagingReduceNxN(Imaging imOut, Imaging imIn, int box[4], int xscale, int yscale
                         }
                     }
                     v = MAKE_UINT32(
-                        (ss0 * multiplier) >> 24, 0, 0, (ss3 * multiplier) >> 24);
+                        (ss0 * multiplier) >> 24, 0, 0, (ss3 * multiplier) >> 24
+                    );
                     memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
                 }
             } else if (imIn->bands == 3) {
@@ -124,7 +125,8 @@ ImagingReduceNxN(Imaging imOut, Imaging imIn, int box[4], int xscale, int yscale
                         (ss0 * multiplier) >> 24,
                         (ss1 * multiplier) >> 24,
                         (ss2 * multiplier) >> 24,
-                        0);
+                        0
+                    );
                     memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
                 }
             } else {  // bands == 4
@@ -171,7 +173,8 @@ ImagingReduceNxN(Imaging imOut, Imaging imIn, int box[4], int xscale, int yscale
                         (ss0 * multiplier) >> 24,
                         (ss1 * multiplier) >> 24,
                         (ss2 * multiplier) >> 24,
-                        (ss3 * multiplier) >> 24);
+                        (ss3 * multiplier) >> 24
+                    );
                     memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
                 }
             }
@@ -226,7 +229,8 @@ ImagingReduce1xN(Imaging imOut, Imaging imIn, int box[4], int yscale) {
                         ss3 += line[xx * 4 + 3];
                     }
                     v = MAKE_UINT32(
-                        (ss0 * multiplier) >> 24, 0, 0, (ss3 * multiplier) >> 24);
+                        (ss0 * multiplier) >> 24, 0, 0, (ss3 * multiplier) >> 24
+                    );
                     memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
                 }
             } else if (imIn->bands == 3) {
@@ -251,7 +255,8 @@ ImagingReduce1xN(Imaging imOut, Imaging imIn, int box[4], int yscale) {
                         (ss0 * multiplier) >> 24,
                         (ss1 * multiplier) >> 24,
                         (ss2 * multiplier) >> 24,
-                        0);
+                        0
+                    );
                     memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
                 }
             } else {  // bands == 4
@@ -278,7 +283,8 @@ ImagingReduce1xN(Imaging imOut, Imaging imIn, int box[4], int yscale) {
                         (ss0 * multiplier) >> 24,
                         (ss1 * multiplier) >> 24,
                         (ss2 * multiplier) >> 24,
-                        (ss3 * multiplier) >> 24);
+                        (ss3 * multiplier) >> 24
+                    );
                     memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
                 }
             }
@@ -329,7 +335,8 @@ ImagingReduceNx1(Imaging imOut, Imaging imIn, int box[4], int xscale) {
                         ss3 += line[xx * 4 + 3];
                     }
                     v = MAKE_UINT32(
-                        (ss0 * multiplier) >> 24, 0, 0, (ss3 * multiplier) >> 24);
+                        (ss0 * multiplier) >> 24, 0, 0, (ss3 * multiplier) >> 24
+                    );
                     memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
                 }
             } else if (imIn->bands == 3) {
@@ -351,7 +358,8 @@ ImagingReduceNx1(Imaging imOut, Imaging imIn, int box[4], int xscale) {
                         (ss0 * multiplier) >> 24,
                         (ss1 * multiplier) >> 24,
                         (ss2 * multiplier) >> 24,
-                        0);
+                        0
+                    );
                     memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
                 }
             } else {  // bands == 4
@@ -375,7 +383,8 @@ ImagingReduceNx1(Imaging imOut, Imaging imIn, int box[4], int xscale) {
                         (ss0 * multiplier) >> 24,
                         (ss1 * multiplier) >> 24,
                         (ss2 * multiplier) >> 24,
-                        (ss3 * multiplier) >> 24);
+                        (ss3 * multiplier) >> 24
+                    );
                     memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
                 }
             }
@@ -425,7 +434,8 @@ ImagingReduce1x2(Imaging imOut, Imaging imIn, int box[4]) {
                     ss1 = line0[xx * 4 + 1] + line1[xx * 4 + 1];
                     ss2 = line0[xx * 4 + 2] + line1[xx * 4 + 2];
                     v = MAKE_UINT32(
-                        (ss0 + amend) >> 1, (ss1 + amend) >> 1, (ss2 + amend) >> 1, 0);
+                        (ss0 + amend) >> 1, (ss1 + amend) >> 1, (ss2 + amend) >> 1, 0
+                    );
                     memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
                 }
             } else {  // bands == 4
@@ -440,7 +450,8 @@ ImagingReduce1x2(Imaging imOut, Imaging imIn, int box[4]) {
                         (ss0 + amend) >> 1,
                         (ss1 + amend) >> 1,
                         (ss2 + amend) >> 1,
-                        (ss3 + amend) >> 1);
+                        (ss3 + amend) >> 1
+                    );
                     memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
                 }
             }
@@ -488,7 +499,8 @@ ImagingReduce2x1(Imaging imOut, Imaging imIn, int box[4]) {
                     ss1 = line0[xx * 4 + 1] + line0[xx * 4 + 5];
                     ss2 = line0[xx * 4 + 2] + line0[xx * 4 + 6];
                     v = MAKE_UINT32(
-                        (ss0 + amend) >> 1, (ss1 + amend) >> 1, (ss2 + amend) >> 1, 0);
+                        (ss0 + amend) >> 1, (ss1 + amend) >> 1, (ss2 + amend) >> 1, 0
+                    );
                     memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
                 }
             } else {  // bands == 4
@@ -503,7 +515,8 @@ ImagingReduce2x1(Imaging imOut, Imaging imIn, int box[4]) {
                         (ss0 + amend) >> 1,
                         (ss1 + amend) >> 1,
                         (ss2 + amend) >> 1,
-                        (ss3 + amend) >> 1);
+                        (ss3 + amend) >> 1
+                    );
                     memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
                 }
             }
@@ -558,7 +571,8 @@ ImagingReduce2x2(Imaging imOut, Imaging imIn, int box[4]) {
                     ss2 = line0[xx * 4 + 2] + line0[xx * 4 + 6] + line1[xx * 4 + 2] +
                           line1[xx * 4 + 6];
                     v = MAKE_UINT32(
-                        (ss0 + amend) >> 2, (ss1 + amend) >> 2, (ss2 + amend) >> 2, 0);
+                        (ss0 + amend) >> 2, (ss1 + amend) >> 2, (ss2 + amend) >> 2, 0
+                    );
                     memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
                 }
             } else {  // bands == 4
@@ -577,7 +591,8 @@ ImagingReduce2x2(Imaging imOut, Imaging imIn, int box[4]) {
                         (ss0 + amend) >> 2,
                         (ss1 + amend) >> 2,
                         (ss2 + amend) >> 2,
-                        (ss3 + amend) >> 2);
+                        (ss3 + amend) >> 2
+                    );
                     memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
                 }
             }
@@ -623,7 +638,8 @@ ImagingReduce1x3(Imaging imOut, Imaging imIn, int box[4]) {
                         ((ss0 + amend) * multiplier) >> 24,
                         0,
                         0,
-                        ((ss3 + amend) * multiplier) >> 24);
+                        ((ss3 + amend) * multiplier) >> 24
+                    );
                     memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
                 }
             } else if (imIn->bands == 3) {
@@ -637,7 +653,8 @@ ImagingReduce1x3(Imaging imOut, Imaging imIn, int box[4]) {
                         ((ss0 + amend) * multiplier) >> 24,
                         ((ss1 + amend) * multiplier) >> 24,
                         ((ss2 + amend) * multiplier) >> 24,
-                        0);
+                        0
+                    );
                     memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
                 }
             } else {  // bands == 4
@@ -652,7 +669,8 @@ ImagingReduce1x3(Imaging imOut, Imaging imIn, int box[4]) {
                         ((ss0 + amend) * multiplier) >> 24,
                         ((ss1 + amend) * multiplier) >> 24,
                         ((ss2 + amend) * multiplier) >> 24,
-                        ((ss3 + amend) * multiplier) >> 24);
+                        ((ss3 + amend) * multiplier) >> 24
+                    );
                     memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
                 }
             }
@@ -694,7 +712,8 @@ ImagingReduce3x1(Imaging imOut, Imaging imIn, int box[4]) {
                         ((ss0 + amend) * multiplier) >> 24,
                         0,
                         0,
-                        ((ss3 + amend) * multiplier) >> 24);
+                        ((ss3 + amend) * multiplier) >> 24
+                    );
                     memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
                 }
             } else if (imIn->bands == 3) {
@@ -708,7 +727,8 @@ ImagingReduce3x1(Imaging imOut, Imaging imIn, int box[4]) {
                         ((ss0 + amend) * multiplier) >> 24,
                         ((ss1 + amend) * multiplier) >> 24,
                         ((ss2 + amend) * multiplier) >> 24,
-                        0);
+                        0
+                    );
                     memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
                 }
             } else {  // bands == 4
@@ -723,7 +743,8 @@ ImagingReduce3x1(Imaging imOut, Imaging imIn, int box[4]) {
                         ((ss0 + amend) * multiplier) >> 24,
                         ((ss1 + amend) * multiplier) >> 24,
                         ((ss2 + amend) * multiplier) >> 24,
-                        ((ss3 + amend) * multiplier) >> 24);
+                        ((ss3 + amend) * multiplier) >> 24
+                    );
                     memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
                 }
             }
@@ -775,7 +796,8 @@ ImagingReduce3x3(Imaging imOut, Imaging imIn, int box[4]) {
                         ((ss0 + amend) * multiplier) >> 24,
                         0,
                         0,
-                        ((ss3 + amend) * multiplier) >> 24);
+                        ((ss3 + amend) * multiplier) >> 24
+                    );
                     memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
                 }
             } else if (imIn->bands == 3) {
@@ -795,7 +817,8 @@ ImagingReduce3x3(Imaging imOut, Imaging imIn, int box[4]) {
                         ((ss0 + amend) * multiplier) >> 24,
                         ((ss1 + amend) * multiplier) >> 24,
                         ((ss2 + amend) * multiplier) >> 24,
-                        0);
+                        0
+                    );
                     memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
                 }
             } else {  // bands == 4
@@ -818,7 +841,8 @@ ImagingReduce3x3(Imaging imOut, Imaging imIn, int box[4]) {
                         ((ss0 + amend) * multiplier) >> 24,
                         ((ss1 + amend) * multiplier) >> 24,
                         ((ss2 + amend) * multiplier) >> 24,
-                        ((ss3 + amend) * multiplier) >> 24);
+                        ((ss3 + amend) * multiplier) >> 24
+                    );
                     memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
                 }
             }
@@ -900,7 +924,8 @@ ImagingReduce4x4(Imaging imOut, Imaging imIn, int box[4]) {
                           line3[xx * 4 + 2] + line3[xx * 4 + 6] + line3[xx * 4 + 10] +
                           line3[xx * 4 + 14];
                     v = MAKE_UINT32(
-                        (ss0 + amend) >> 4, (ss1 + amend) >> 4, (ss2 + amend) >> 4, 0);
+                        (ss0 + amend) >> 4, (ss1 + amend) >> 4, (ss2 + amend) >> 4, 0
+                    );
                     memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
                 }
             } else {  // bands == 4
@@ -935,7 +960,8 @@ ImagingReduce4x4(Imaging imOut, Imaging imIn, int box[4]) {
                         (ss0 + amend) >> 4,
                         (ss1 + amend) >> 4,
                         (ss2 + amend) >> 4,
-                        (ss3 + amend) >> 4);
+                        (ss3 + amend) >> 4
+                    );
                     memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
                 }
             }
@@ -1007,7 +1033,8 @@ ImagingReduce5x5(Imaging imOut, Imaging imIn, int box[4]) {
                         ((ss0 + amend) * multiplier) >> 24,
                         0,
                         0,
-                        ((ss3 + amend) * multiplier) >> 24);
+                        ((ss3 + amend) * multiplier) >> 24
+                    );
                     memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
                 }
             } else if (imIn->bands == 3) {
@@ -1045,7 +1072,8 @@ ImagingReduce5x5(Imaging imOut, Imaging imIn, int box[4]) {
                         ((ss0 + amend) * multiplier) >> 24,
                         ((ss1 + amend) * multiplier) >> 24,
                         ((ss2 + amend) * multiplier) >> 24,
-                        0);
+                        0
+                    );
                     memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
                 }
             } else {  // bands == 4
@@ -1092,7 +1120,8 @@ ImagingReduce5x5(Imaging imOut, Imaging imIn, int box[4]) {
                         ((ss0 + amend) * multiplier) >> 24,
                         ((ss1 + amend) * multiplier) >> 24,
                         ((ss2 + amend) * multiplier) >> 24,
-                        ((ss3 + amend) * multiplier) >> 24);
+                        ((ss3 + amend) * multiplier) >> 24
+                    );
                     memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
                 }
             }
@@ -1181,7 +1210,8 @@ ImagingReduceCorners(Imaging imOut, Imaging imIn, int box[4], int xscale, int ys
                     (ss0 * multiplier) >> 24,
                     (ss1 * multiplier) >> 24,
                     (ss2 * multiplier) >> 24,
-                    (ss3 * multiplier) >> 24);
+                    (ss3 * multiplier) >> 24
+                );
                 memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
             }
         }
@@ -1207,7 +1237,8 @@ ImagingReduceCorners(Imaging imOut, Imaging imIn, int box[4], int xscale, int ys
                     (ss0 * multiplier) >> 24,
                     (ss1 * multiplier) >> 24,
                     (ss2 * multiplier) >> 24,
-                    (ss3 * multiplier) >> 24);
+                    (ss3 * multiplier) >> 24
+                );
                 memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
             }
         }
@@ -1232,7 +1263,8 @@ ImagingReduceCorners(Imaging imOut, Imaging imIn, int box[4], int xscale, int ys
                 (ss0 * multiplier) >> 24,
                 (ss1 * multiplier) >> 24,
                 (ss2 * multiplier) >> 24,
-                (ss3 * multiplier) >> 24);
+                (ss3 * multiplier) >> 24
+            );
             memcpy(imOut->image[y] + x * sizeof(v), &v, sizeof(v));
         }
     }
@@ -1240,7 +1272,8 @@ ImagingReduceCorners(Imaging imOut, Imaging imIn, int box[4], int xscale, int ys
 
 void
 ImagingReduceNxN_32bpc(
-    Imaging imOut, Imaging imIn, int box[4], int xscale, int yscale) {
+    Imaging imOut, Imaging imIn, int box[4], int xscale, int yscale
+) {
     /* The most general implementation for any xscale and yscale
      */
     int x, y, xx, yy;
@@ -1313,7 +1346,8 @@ ImagingReduceNxN_32bpc(
 
 void
 ImagingReduceCorners_32bpc(
-    Imaging imOut, Imaging imIn, int box[4], int xscale, int yscale) {
+    Imaging imOut, Imaging imIn, int box[4], int xscale, int yscale
+) {
     /* Fill the last row and the last column for any xscale and yscale.
      */
     int x, y, xx, yy;
@@ -1429,7 +1463,8 @@ ImagingReduce(Imaging imIn, int xscale, int yscale, int box[4]) {
     imOut = ImagingNewDirty(
         imIn->mode,
         (ImagingNewParams){
-            (box[2] + xscale - 1) / xscale, (box[3] + yscale - 1) / yscale});
+            (box[2] + xscale - 1) / xscale, (box[3] + yscale - 1) / yscale}
+    );
     if (!imOut) {
         return NULL;
     }

src/libImaging/Resample.c

@@ -186,7 +186,8 @@ precompute_coeffs(
     int outSize,
     struct filter *filterp,
     int **boundsp,
-    double **kkp) {
+    double **kkp
+) {
     double support, scale, filterscale;
     double center, ww, ss;
     int xx, x, ksize, xmin, xmax;
@@ -284,7 +285,8 @@ normalize_coeffs_8bpc(int outSize, int ksize, double *prekk) {
 
 void
 ImagingResampleHorizontal_8bpc(
-    Imaging imOut, Imaging imIn, int offset, int ksize, int *bounds, double *prekk) {
+    Imaging imOut, Imaging imIn, int offset, int ksize, int *bounds, double *prekk
+) {
     ImagingSectionCookie cookie;
     int ss0, ss1, ss2, ss3;
     int xx, yy, x, xmin, xmax;
@@ -376,7 +378,8 @@ ImagingResampleHorizontal_8bpc(
 
 void
 ImagingResampleVertical_8bpc(
-    Imaging imOut, Imaging imIn, int offset, int ksize, int *bounds, double *prekk) {
+    Imaging imOut, Imaging imIn, int offset, int ksize, int *bounds, double *prekk
+) {
     ImagingSectionCookie cookie;
     int ss0, ss1, ss2, ss3;
     int xx, yy, y, ymin, ymax;
@@ -459,7 +462,8 @@ ImagingResampleVertical_8bpc(
 
 void
 ImagingResampleHorizontal_32bpc(
-    Imaging imOut, Imaging imIn, int offset, int ksize, int *bounds, double *kk) {
+    Imaging imOut, Imaging imIn, int offset, int ksize, int *bounds, double *kk
+) {
     ImagingSectionCookie cookie;
     double ss;
     int xx, yy, x, xmin, xmax;
@@ -502,7 +506,8 @@ ImagingResampleHorizontal_32bpc(
 
 void
 ImagingResampleVertical_32bpc(
-    Imaging imOut, Imaging imIn, int offset, int ksize, int *bounds, double *kk) {
+    Imaging imOut, Imaging imIn, int offset, int ksize, int *bounds, double *kk
+) {
     ImagingSectionCookie cookie;
     double ss;
     int xx, yy, y, ymin, ymax;
@@ -544,7 +549,8 @@ ImagingResampleVertical_32bpc(
 }
 
 typedef void (*ResampleFunction)(
-    Imaging imOut, Imaging imIn, int offset, int ksize, int *bounds, double *kk);
+    Imaging imOut, Imaging imIn, int offset, int ksize, int *bounds, double *kk
+);
 
 Imaging
 ImagingResampleInner(
@@ -554,7 +560,8 @@ ImagingResampleInner(
     struct filter *filterp,
     float box[4],
     ResampleFunction ResampleHorizontal,
-    ResampleFunction ResampleVertical);
+    ResampleFunction ResampleVertical
+);
 
 Imaging
 ImagingResample(Imaging imIn, int xsize, int ysize, int filter, float box[4]) {
@@ -609,7 +616,8 @@ ImagingResample(Imaging imIn, int xsize, int ysize, int filter, float box[4]) {
     }
 
     return ImagingResampleInner(
-        imIn, xsize, ysize, filterp, box, ResampleHorizontal, ResampleVertical);
+        imIn, xsize, ysize, filterp, box, ResampleHorizontal, ResampleVertical
+    );
 }
 
 Imaging
@@ -620,7 +628,8 @@ ImagingResampleInner(
     struct filter *filterp,
     float box[4],
     ResampleFunction ResampleHorizontal,
-    ResampleFunction ResampleVertical) {
+    ResampleFunction ResampleVertical
+) {
     Imaging imTemp = NULL;
     Imaging imOut = NULL;
 
@@ -634,13 +643,15 @@ ImagingResampleInner(
     need_vertical = ysize != imIn->ysize || box[1] || box[3] != ysize;
 
     ksize_horiz = precompute_coeffs(
-        imIn->xsize, box[0], box[2], xsize, filterp, &bounds_horiz, &kk_horiz);
+        imIn->xsize, box[0], box[2], xsize, filterp, &bounds_horiz, &kk_horiz
+    );
     if (!ksize_horiz) {
         return NULL;
     }
 
     ksize_vert = precompute_coeffs(
-        imIn->ysize, box[1], box[3], ysize, filterp, &bounds_vert, &kk_vert);
+        imIn->ysize, box[1], box[3], ysize, filterp, &bounds_vert, &kk_vert
+    );
     if (!ksize_vert) {
         free(bounds_horiz);
         free(kk_horiz);
@@ -663,7 +674,8 @@ ImagingResampleInner(
             imIn->mode, (ImagingNewParams){xsize, ybox_last - ybox_first});
         if (imTemp) {
             ResampleHorizontal(
-                imTemp, imIn, ybox_first, ksize_horiz, bounds_horiz, kk_horiz);
+                imTemp, imIn, ybox_first, ksize_horiz, bounds_horiz, kk_horiz
+            );
         }
         free(bounds_horiz);
         free(kk_horiz);

src/libImaging/SgiRleDecode.c

@@ -114,7 +114,8 @@ expandrow(UINT8 *dest, UINT8 *src, int n, int z, int xsize, UINT8 *end_of_buffer
 
 static int
 expandrow2(
-    UINT8 *dest, const UINT8 *src, int n, int z, int xsize, UINT8 *end_of_buffer) {
+    UINT8 *dest, const UINT8 *src, int n, int z, int xsize, UINT8 *end_of_buffer
+) {
     UINT8 pixel, count;
     int x = 0;
 
@@ -252,7 +253,8 @@ ImagingSgiRleDecode(Imaging im, ImagingCodecState state, UINT8 *buf, Py_ssize_t
                     c->rlelength,
                     im->bands,
                     im->xsize,
-                    &ptr[c->bufsize - 1]);
+                    &ptr[c->bufsize - 1]
+                );
             } else {
                 status = expandrow2(
                     &state->buffer[c->channo * 2],
@@ -260,7 +262,8 @@ ImagingSgiRleDecode(Imaging im, ImagingCodecState state, UINT8 *buf, Py_ssize_t
                     c->rlelength,
                     im->bands,
                     im->xsize,
-                    &ptr[c->bufsize - 1]);
+                    &ptr[c->bufsize - 1]
+                );
             }
             if (status == -1) {
                 state->errcode = IMAGING_CODEC_OVERRUN;

src/libImaging/Storage.c

@@ -110,9 +110,8 @@ ImagingNewPrologueSubtype(const char *mode, ImagingNewParams p, int size) {
         im->linesize = p.xsize * 4;
         im->type = IMAGING_TYPE_INT32;
 
-    } else if (
+    } else if (strcmp(mode, "I;16") == 0 || strcmp(mode, "I;16L") == 0 ||
-        strcmp(mode, "I;16") == 0 || strcmp(mode, "I;16L") == 0 ||
+               strcmp(mode, "I;16B") == 0 || strcmp(mode, "I;16N") == 0) {
-        strcmp(mode, "I;16B") == 0 || strcmp(mode, "I;16N") == 0) {
         /* EXPERIMENTAL */
         /* 16-bit raw integer images */
         im->bands = 1;
@@ -237,7 +236,9 @@ ImagingNewPrologueSubtype(const char *mode, ImagingNewParams p, int size) {
 
 Imaging
 ImagingNewPrologue(const char *mode, ImagingNewParams p) {
-    return ImagingNewPrologueSubtype(mode, p, sizeof(struct ImagingMemoryInstance));
+    return ImagingNewPrologueSubtype(
+        mode, p, sizeof(struct ImagingMemoryInstance)
+    );
 }
 
 void

src/libImaging/SunRleDecode.c

@@ -107,7 +107,8 @@ ImagingSunRleDecode(Imaging im, ImagingCodecState state, UINT8 *buf, Py_ssize_t
                     (UINT8 *)im->image[state->y + state->yoff] +
                         state->xoff * im->pixelsize,
                     state->buffer,
-                    state->xsize);
+                    state->xsize
+                );
 
                 state->x = 0;
 

src/libImaging/TgaRleDecode.c

@@ -93,7 +93,8 @@ ImagingTgaRleDecode(Imaging im, ImagingCodecState state, UINT8 *buf, Py_ssize_t
                     (UINT8 *)im->image[state->y + state->yoff] +
                         state->xoff * im->pixelsize,
                     state->buffer,
-                    state->xsize);
+                    state->xsize
+                );
 
                 state->x = 0;
 

src/libImaging/TgaRleEncode.c

@@ -63,7 +63,8 @@ ImagingTgaRleEncode(Imaging im, ImagingCodecState state, UINT8 *buf, int bytes)
                     state->buffer,
                     (UINT8 *)im->image[state->y + state->yoff] +
                         state->xoff * im->pixelsize,
-                    state->xsize);
+                    state->xsize
+                );
             }
 
             row = state->buffer;
@@ -146,7 +147,8 @@ ImagingTgaRleEncode(Imaging im, ImagingCodecState state, UINT8 *buf, int bytes)
         }
 
         memcpy(
-            dst, state->buffer + (state->x * bytesPerPixel - state->count), flushCount);
+            dst, state->buffer + (state->x * bytesPerPixel - state->count), flushCount
+        );
         dst += flushCount;
         bytes -= flushCount;
 

src/libImaging/TiffDecode.c

@@ -44,7 +44,8 @@ dump_state(const TIFFSTATE *state) {
          (int)state->size,
          (uint)state->eof,
          state->data,
-         state->ifd));
+         state->ifd)
+    );
 }
 
 /*
@@ -64,7 +65,8 @@ _tiffReadProc(thandle_t hdata, tdata_t buf, tsize_t size) {
             "_tiffReadProc",
             "Invalid Read at loc %" PRIu64 ", eof: %" PRIu64,
             state->loc,
-            state->eof);
+            state->eof
+        );
         return 0;
     }
     to_read = min(size, min(state->size, (tsize_t)state->eof) - (tsize_t)state->loc);
@@ -200,13 +202,15 @@ ImagingLibTiffInit(ImagingCodecState state, int fp, uint32_t offset) {
          state->state,
          state->x,
          state->y,
-         state->ystep));
+         state->ystep)
+    );
     TRACE(
         ("State: xsize %d, ysize %d, xoff %d, yoff %d \n",
          state->xsize,
          state->ysize,
          state->xoff,
-         state->yoff));
+         state->yoff)
+    );
     TRACE(("State: bits %d, bytes %d \n", state->bits, state->bytes));
     TRACE(("State: context %p \n", state->context));
 
@@ -226,7 +230,8 @@ _pickUnpackers(
     ImagingCodecState state,
     TIFF *tiff,
     uint16_t planarconfig,
-    ImagingShuffler *unpackers) {
+    ImagingShuffler *unpackers
+) {
     // if number of bands is 1, there is no difference with contig case
     if (planarconfig == PLANARCONFIG_SEPARATE && im->bands > 1) {
         uint16_t bits_per_sample = 8;
@@ -356,7 +361,8 @@ _decodeAsRGBA(Imaging im, ImagingCodecState state, TIFF *tiff) {
                 (UINT8 *)im->image[state->y + state->yoff + current_row] +
                     state->xoff * im->pixelsize,
                 state->buffer + current_row * row_byte_size,
-                state->xsize);
+                state->xsize
+            );
         }
     }
 
@@ -374,7 +380,8 @@ _decodeTile(
     ImagingCodecState state,
     TIFF *tiff,
     int planes,
-    ImagingShuffler *unpackers) {
+    ImagingShuffler *unpackers
+) {
     INT32 x, y, tile_y, current_tile_length, current_tile_width;
     UINT32 tile_width, tile_length;
     tsize_t tile_bytes_size, row_byte_size;
@@ -453,7 +460,8 @@ _decodeTile(
                         ("Writing tile data at %dx%d using tile_width: %d; \n",
                          tile_y + y,
                          x,
-                         current_tile_width));
+                         current_tile_width)
+                    );
 
                     // UINT8 * bbb = state->buffer + tile_y * row_byte_size;
                     // TRACE(("chars: %x%x%x%x\n", ((UINT8 *)bbb)[0], ((UINT8 *)bbb)[1],
@@ -462,7 +470,8 @@ _decodeTile(
                     shuffler(
                         (UINT8 *)im->image[tile_y + y] + x * im->pixelsize,
                         state->buffer + tile_y * row_byte_size,
-                        current_tile_width);
+                        current_tile_width
+                    );
                 }
             }
         }
@@ -477,7 +486,8 @@ _decodeStrip(
     ImagingCodecState state,
     TIFF *tiff,
     int planes,
-    ImagingShuffler *unpackers) {
+    ImagingShuffler *unpackers
+) {
     INT32 strip_row = 0;
     UINT8 *new_data;
     UINT32 rows_per_strip;
@@ -544,9 +554,10 @@ _decodeStrip(
                     tiff,
                     TIFFComputeStrip(tiff, state->y, plane),
                     (tdata_t)state->buffer,
-                    strip_size) == -1) {
+                    strip_size
-                TRACE(
+                ) == -1) {
-                    ("Decode Error, strip %d\n", TIFFComputeStrip(tiff, state->y, 0)));
+                TRACE(("Decode Error, strip %d\n", TIFFComputeStrip(tiff, state->y, 0))
+                );
                 state->errcode = IMAGING_CODEC_BROKEN;
                 return -1;
             }
@@ -567,7 +578,8 @@ _decodeStrip(
                     (UINT8 *)im->image[state->y + state->yoff + strip_row] +
                         state->xoff * im->pixelsize,
                     state->buffer + strip_row * row_byte_size,
-                    state->xsize);
+                    state->xsize
+                );
             }
         }
     }
@@ -577,7 +589,8 @@ _decodeStrip(
 
 int
 ImagingLibTiffDecode(
-    Imaging im, ImagingCodecState state, UINT8 *buffer, Py_ssize_t bytes) {
+    Imaging im, ImagingCodecState state, UINT8 *buffer, Py_ssize_t bytes
+) {
     TIFFSTATE *clientstate = (TIFFSTATE *)state->context;
     char *filename = "tempfile.tif";
     char *mode = "rC";
@@ -602,13 +615,15 @@ ImagingLibTiffDecode(
          state->state,
          state->x,
          state->y,
-         state->ystep));
+         state->ystep)
+    );
     TRACE(
         ("State: xsize %d, ysize %d, xoff %d, yoff %d \n",
          state->xsize,
          state->ysize,
          state->xoff,
-         state->yoff));
+         state->yoff)
+    );
     TRACE(("State: bits %d, bytes %d \n", state->bits, state->bytes));
     TRACE(
         ("Buffer: %p: %c%c%c%c\n",
@@ -616,26 +631,30 @@ ImagingLibTiffDecode(
          (char)buffer[0],
          (char)buffer[1],
          (char)buffer[2],
-         (char)buffer[3]));
+         (char)buffer[3])
+    );
     TRACE(
         ("State->Buffer: %c%c%c%c\n",
          (char)state->buffer[0],
          (char)state->buffer[1],
          (char)state->buffer[2],
-         (char)state->buffer[3]));
+         (char)state->buffer[3])
+    );
     TRACE(
         ("Image: mode %s, type %d, bands: %d, xsize %d, ysize %d \n",
          im->mode,
          im->type,
          im->bands,
          im->xsize,
-         im->ysize));
+         im->ysize)
+    );
     TRACE(
         ("Image: image8 %p, image32 %p, image %p, block %p \n",
          im->image8,
          im->image32,
          im->image,
-         im->block));
+         im->block)
+    );
     TRACE(("Image: pixelsize: %d, linesize %d \n", im->pixelsize, im->linesize));
 
     dump_state(clientstate);
@@ -665,7 +684,8 @@ ImagingLibTiffDecode(
             _tiffCloseProc,
             _tiffSizeProc,
             _tiffMapProc,
-            _tiffUnmapProc);
+            _tiffUnmapProc
+        );
     }
 
     if (!tiff) {
@@ -694,7 +714,8 @@ ImagingLibTiffDecode(
              state->xsize,
              img_width,
              state->ysize,
-             img_height));
+             img_height)
+        );
         state->errcode = IMAGING_CODEC_BROKEN;
         goto decode_err;
     }
@@ -739,7 +760,8 @@ ImagingLibTiffDecode(
                 INT32 y;
 
                 TIFFGetFieldDefaulted(
-                    tiff, TIFFTAG_EXTRASAMPLES, &extrasamples, &sampleinfo);
+                    tiff, TIFFTAG_EXTRASAMPLES, &extrasamples, &sampleinfo
+                );
 
                 if (extrasamples >= 1 && (sampleinfo[0] == EXTRASAMPLE_UNSPECIFIED ||
                                           sampleinfo[0] == EXTRASAMPLE_ASSOCALPHA)) {
@@ -793,13 +815,15 @@ ImagingLibTiffEncodeInit(ImagingCodecState state, char *filename, int fp) {
          state->state,
          state->x,
          state->y,
-         state->ystep));
+         state->ystep)
+    );
     TRACE(
         ("State: xsize %d, ysize %d, xoff %d, yoff %d \n",
          state->xsize,
          state->ysize,
          state->xoff,
-         state->yoff));
+         state->yoff)
+    );
     TRACE(("State: bits %d, bytes %d \n", state->bits, state->bytes));
     TRACE(("State: context %p \n", state->context));
 
@@ -839,7 +863,8 @@ ImagingLibTiffEncodeInit(ImagingCodecState state, char *filename, int fp) {
             _tiffCloseProc,
             _tiffSizeProc,
             _tiffNullMapProc,
-            _tiffUnmapProc); /*force no mmap*/
+            _tiffUnmapProc
+        ); /*force no mmap*/
     }
 
     if (!clientstate->tiff) {
@@ -852,7 +877,8 @@ ImagingLibTiffEncodeInit(ImagingCodecState state, char *filename, int fp) {
 
 int
 ImagingLibTiffMergeFieldInfo(
-    ImagingCodecState state, TIFFDataType field_type, int key, int is_var_length) {
+    ImagingCodecState state, TIFFDataType field_type, int key, int is_var_length
+) {
     // Refer to libtiff docs (http://www.simplesystems.org/libtiff/addingtags.html)
     TIFFSTATE *clientstate = (TIFFSTATE *)state->context;
     uint32_t n;
@@ -874,7 +900,8 @@ ImagingLibTiffMergeFieldInfo(
          FIELD_CUSTOM,
          1,
          passcount,
-         "CustomField"}};
+         "CustomField"}
+    };
 
     n = sizeof(info) / sizeof(info[0]);
 
@@ -922,13 +949,15 @@ ImagingLibTiffEncode(Imaging im, ImagingCodecState state, UINT8 *buffer, int byt
          state->state,
          state->x,
          state->y,
-         state->ystep));
+         state->ystep)
+    );
     TRACE(
         ("State: xsize %d, ysize %d, xoff %d, yoff %d \n",
          state->xsize,
          state->ysize,
          state->xoff,
-         state->yoff));
+         state->yoff)
+    );
     TRACE(("State: bits %d, bytes %d \n", state->bits, state->bytes));
     TRACE(
         ("Buffer: %p: %c%c%c%c\n",
@@ -936,26 +965,30 @@ ImagingLibTiffEncode(Imaging im, ImagingCodecState state, UINT8 *buffer, int byt
          (char)buffer[0],
          (char)buffer[1],
          (char)buffer[2],
-         (char)buffer[3]));
+         (char)buffer[3])
+    );
     TRACE(
         ("State->Buffer: %c%c%c%c\n",
          (char)state->buffer[0],
          (char)state->buffer[1],
          (char)state->buffer[2],
-         (char)state->buffer[3]));
+         (char)state->buffer[3])
+    );
     TRACE(
         ("Image: mode %s, type %d, bands: %d, xsize %d, ysize %d \n",
          im->mode,
          im->type,
          im->bands,
          im->xsize,
-         im->ysize));
+         im->ysize)
+    );
     TRACE(
         ("Image: image8 %p, image32 %p, image %p, block %p \n",
          im->image8,
          im->image32,
          im->image,
-         im->block));
+         im->block)
+    );
     TRACE(("Image: pixelsize: %d, linesize %d \n", im->pixelsize, im->linesize));
 
     dump_state(clientstate);
@@ -967,10 +1000,12 @@ ImagingLibTiffEncode(Imaging im, ImagingCodecState state, UINT8 *buffer, int byt
                 state->buffer,
                 (UINT8 *)im->image[state->y + state->yoff] +
                     state->xoff * im->pixelsize,
-                state->xsize);
+                state->xsize
+            );
 
             if (TIFFWriteScanline(
-                    tiff, (tdata_t)(state->buffer), (uint32_t)state->y, 0) == -1) {
+                    tiff, (tdata_t)(state->buffer), (uint32_t)state->y, 0
+                ) == -1) {
                 TRACE(("Encode Error, row %d\n", state->y));
                 state->errcode = IMAGING_CODEC_BROKEN;
                 TIFFClose(tiff);
@@ -1013,7 +1048,8 @@ ImagingLibTiffEncode(Imaging im, ImagingCodecState state, UINT8 *buffer, int byt
              (char)buffer[0],
              (char)buffer[1],
              (char)buffer[2],
-             (char)buffer[3]));
+             (char)buffer[3])
+        );
         if (clientstate->loc == clientstate->eof) {
             TRACE(("Hit EOF, calling an end, freeing data"));
             state->errcode = IMAGING_CODEC_END;

src/libImaging/TiffDecode.h

@@ -41,7 +41,8 @@ extern int
 ImagingLibTiffEncodeInit(ImagingCodecState state, char *filename, int fp);
 extern int
 ImagingLibTiffMergeFieldInfo(
-    ImagingCodecState state, TIFFDataType field_type, int key, int is_var_length);
+    ImagingCodecState state, TIFFDataType field_type, int key, int is_var_length
+);
 extern int
 ImagingLibTiffSetField(ImagingCodecState state, ttag_t tag, ...);
 

src/libImaging/Unpack.c

@@ -104,7 +104,8 @@ static UINT8 BITFLIP[] = {
     3,  131, 67, 195, 35, 163, 99,  227, 19, 147, 83, 211, 51, 179, 115, 243,
     11, 139, 75, 203, 43, 171, 107, 235, 27, 155, 91, 219, 59, 187, 123, 251,
     7,  135, 71, 199, 39, 167, 103, 231, 23, 151, 87, 215, 55, 183, 119, 247,
-    15, 143, 79, 207, 47, 175, 111, 239, 31, 159, 95, 223, 63, 191, 127, 255};
+    15, 143, 79, 207, 47, 175, 111, 239, 31, 159, 95, 223, 63, 191, 127, 255
+};
 
 /* Unpack to "1" image */
 
@@ -882,7 +883,8 @@ unpackRGBa16L(UINT8 *_out, const UINT8 *in, int pixels) {
                 CLIP8(in[1] * 255 / a),
                 CLIP8(in[3] * 255 / a),
                 CLIP8(in[5] * 255 / a),
-                a);
+                a
+            );
         }
         memcpy(_out, &iv, sizeof(iv));
         in += 8;
@@ -906,7 +908,8 @@ unpackRGBa16B(UINT8 *_out, const UINT8 *in, int pixels) {
                 CLIP8(in[0] * 255 / a),
                 CLIP8(in[2] * 255 / a),
                 CLIP8(in[4] * 255 / a),
-                a);
+                a
+            );
         }
         memcpy(_out, &iv, sizeof(iv));
         in += 8;
@@ -930,7 +933,8 @@ unpackRGBa(UINT8 *_out, const UINT8 *in, int pixels) {
                 CLIP8(in[0] * 255 / a),
                 CLIP8(in[1] * 255 / a),
                 CLIP8(in[2] * 255 / a),
-                a);
+                a
+            );
         }
         memcpy(_out, &iv, sizeof(iv));
         in += 4;
@@ -954,7 +958,8 @@ unpackRGBaskip1(UINT8 *_out, const UINT8 *in, int pixels) {
                 CLIP8(in[0] * 255 / a),
                 CLIP8(in[1] * 255 / a),
                 CLIP8(in[2] * 255 / a),
-                a);
+                a
+            );
         }
         in += 5;
     }
@@ -976,7 +981,8 @@ unpackRGBaskip2(UINT8 *_out, const UINT8 *in, int pixels) {
                 CLIP8(in[0] * 255 / a),
                 CLIP8(in[1] * 255 / a),
                 CLIP8(in[2] * 255 / a),
-                a);
+                a
+            );
         }
         in += 6;
     }
@@ -998,7 +1004,8 @@ unpackBGRa(UINT8 *_out, const UINT8 *in, int pixels) {
                 CLIP8(in[2] * 255 / a),
                 CLIP8(in[1] * 255 / a),
                 CLIP8(in[0] * 255 / a),
-                a);
+                a
+            );
         }
         memcpy(_out, &iv, sizeof(iv));
         in += 4;
@@ -1029,7 +1036,8 @@ unpackRGBAL(UINT8 *_out, const UINT8 *in, int pixels) {
             in[i],
             in[i + pixels],
             in[i + pixels + pixels],
-            in[i + pixels + pixels + pixels]);
+            in[i + pixels + pixels + pixels]
+        );
         memcpy(_out, &iv, sizeof(iv));
     }
 }

src/libImaging/UnpackYCC.c

@@ -34,7 +34,8 @@ static INT16 L[] = {
     261, 262, 264, 265, 266, 268, 269, 270, 272, 273, 274, 276, 277, 278, 280, 281,
     283, 284, 285, 287, 288, 289, 291, 292, 293, 295, 296, 297, 299, 300, 302, 303,
     304, 306, 307, 308, 310, 311, 312, 314, 315, 317, 318, 319, 321, 322, 323, 325,
-    326, 327, 329, 330, 331, 333, 334, 336, 337, 338, 340, 341, 342, 344, 345, 346};
+    326, 327, 329, 330, 331, 333, 334, 336, 337, 338, 340, 341, 342, 344, 345, 346
+};
 
 static INT16 CB[] = {
     -345, -343, -341, -338, -336, -334, -332, -329, -327, -325, -323, -321, -318, -316,
@@ -55,7 +56,8 @@ static INT16 CB[] = {
     120,  122,  124,  126,  129,  131,  133,  135,  138,  140,  142,  144,  146,  149,
     151,  153,  155,  157,  160,  162,  164,  166,  169,  171,  173,  175,  177,  180,
     182,  184,  186,  189,  191,  193,  195,  197,  200,  202,  204,  206,  208,  211,
-    213,  215,  217,  220};
+    213,  215,  217,  220
+};
 
 static INT16 GB[] = {
     67,  67,  66,  66,  65,  65,  65,  64,  64,  63,  63,  62,  62,  62,  61,  61,
@@ -73,7 +75,8 @@ static INT16 GB[] = {
     -14, -15, -15, -16, -16, -17, -17, -18, -18, -18, -19, -19, -20, -20, -21, -21,
     -21, -22, -22, -23, -23, -24, -24, -24, -25, -25, -26, -26, -27, -27, -27, -28,
     -28, -29, -29, -30, -30, -30, -31, -31, -32, -32, -33, -33, -33, -34, -34, -35,
-    -35, -36, -36, -36, -37, -37, -38, -38, -39, -39, -39, -40, -40, -41, -41, -42};
+    -35, -36, -36, -36, -37, -37, -38, -38, -39, -39, -39, -40, -40, -41, -41, -42
+};
 
 static INT16 CR[] = {
     -249, -247, -245, -243, -241, -239, -238, -236, -234, -232, -230, -229, -227, -225,
@@ -94,7 +97,8 @@ static INT16 CR[] = {
     133,  135,  137,  138,  140,  142,  144,  146,  148,  149,  151,  153,  155,  157,
     158,  160,  162,  164,  166,  168,  169,  171,  173,  175,  177,  179,  180,  182,
     184,  186,  188,  189,  191,  193,  195,  197,  199,  200,  202,  204,  206,  208,
-    209,  211,  213,  215};
+    209,  211,  213,  215
+};
 
 static INT16 GR[] = {
     127, 126, 125, 124, 123, 122, 121,  121,  120,  119,  118,  117,  116,  115,  114,
@@ -114,7 +118,8 @@ static INT16 GR[] = {
     -67, -68, -69, -69, -70, -71, -72,  -73,  -74,  -75,  -76,  -77,  -78,  -79,  -80,
     -81, -82, -82, -83, -84, -85, -86,  -87,  -88,  -89,  -90,  -91,  -92,  -93,  -94,
     -94, -95, -96, -97, -98, -99, -100, -101, -102, -103, -104, -105, -106, -107, -107,
-    -108};
+    -108
+};
 
 #define R 0
 #define G 1

src/libImaging/UnsharpMask.c

@@ -23,7 +23,8 @@ clip8(int in) {
 
 Imaging
 ImagingUnsharpMask(
-    Imaging imOut, Imaging imIn, float radius, int percent, int threshold) {
+    Imaging imOut, Imaging imIn, float radius, int percent, int threshold
+) {
     ImagingSectionCookie cookie;
     Imaging result;
 

src/libImaging/XbmEncode.c

@@ -40,7 +40,8 @@ ImagingXbmEncode(Imaging im, ImagingCodecState state, UINT8 *buf, int bytes) {
         state->shuffle(
             state->buffer,
             (UINT8 *)im->image[state->y + state->yoff] + state->xoff * im->pixelsize,
-            state->xsize);
+            state->xsize
+        );
 
         if (state->y < state->ysize - 1) {
             /* any line but the last */

src/libImaging/ZipDecode.c

@@ -217,7 +217,8 @@ ImagingZipDecode(Imaging im, ImagingCodecState state, UINT8 *buf, Py_ssize_t byt
                     state->shuffle(
                         (UINT8 *)im->image[state->y] + col * im->pixelsize,
                         state->buffer + context->prefix + i,
-                        1);
+                        1
+                    );
                     col += COL_INCREMENT[context->pass];
                 }
             } else {
@@ -229,7 +230,8 @@ ImagingZipDecode(Imaging im, ImagingCodecState state, UINT8 *buf, Py_ssize_t byt
                     UINT8 byte = *(state->buffer + context->prefix + (i / 8));
                     byte <<= (i % 8);
                     state->shuffle(
-                        (UINT8 *)im->image[state->y] + col * im->pixelsize, &byte, 1);
+                        (UINT8 *)im->image[state->y] + col * im->pixelsize, &byte, 1
+                    );
                     col += COL_INCREMENT[context->pass];
                 }
             }
@@ -253,7 +255,8 @@ ImagingZipDecode(Imaging im, ImagingCodecState state, UINT8 *buf, Py_ssize_t byt
                 (UINT8 *)im->image[state->y + state->yoff] +
                     state->xoff * im->pixelsize,
                 state->buffer + context->prefix,
-                state->xsize);
+                state->xsize
+            );
             state->y++;
         }
 

src/libImaging/ZipEncode.c

@@ -98,7 +98,8 @@ ImagingZipEncode(Imaging im, ImagingCodecState state, UINT8 *buf, int bytes) {
             15,
             9,
             /* compression strategy (image data are filtered)*/
-            compress_type);
+            compress_type
+        );
         if (err < 0) {
             state->errcode = IMAGING_CODEC_CONFIG;
             return -1;
@@ -108,7 +109,8 @@ ImagingZipEncode(Imaging im, ImagingCodecState state, UINT8 *buf, int bytes) {
             err = deflateSetDictionary(
                 &context->z_stream,
                 (unsigned char *)context->dictionary,
-                context->dictionary_size);
+                context->dictionary_size
+            );
             if (err < 0) {
                 state->errcode = IMAGING_CODEC_CONFIG;
                 return -1;
@@ -163,7 +165,8 @@ ImagingZipEncode(Imaging im, ImagingCodecState state, UINT8 *buf, int bytes) {
                         state->buffer + 1,
                         (UINT8 *)im->image[state->y + state->yoff] +
                             state->xoff * im->pixelsize,
-                        state->xsize);
+                        state->xsize
+                    );
 
                     state->y++;
 

src/map.c

@@ -75,7 +75,8 @@ PyImaging_MapBuffer(PyObject *self, PyObject *args) {
             &stride,
             &ystep,
             &depth,
-            &bands)) {
+            &bands
+        )) {
         return NULL;
     }
 

src/path.c

@@ -26,6 +26,7 @@
  */
 
 #include "Python.h"
+#include "thirdparty/pythoncapi_compat.h"
 #include "libImaging/Imaging.h"
 
 #include <math.h>
@@ -179,14 +180,21 @@ PyPath_Flatten(PyObject *data, double **pxy) {
         }                                                               \
         free(xy);                                                       \
         return -1;                                                      \
+    }                                                                   \
+    if (decref) {                                                       \
+        Py_DECREF(op);                                                  \
     }
 
     /* Copy table to path array */
     if (PyList_Check(data)) {
         for (i = 0; i < n; i++) {
             double x, y;
-            PyObject *op = PyList_GET_ITEM(data, i);
+            PyObject *op = PyList_GetItemRef(data, i);
-            assign_item_to_array(op, 0);
+            if (op == NULL) {
+                free(xy);
+                return -1;
+            }
+            assign_item_to_array(op, 1);
         }
     } else if (PyTuple_Check(data)) {
         for (i = 0; i < n; i++) {
@@ -209,7 +217,6 @@ PyPath_Flatten(PyObject *data, double **pxy) {
                 }
             }
             assign_item_to_array(op, 1);
-            Py_DECREF(op);
         }
     }
 
@@ -482,7 +489,8 @@ path_transform(PyPathObject *self, PyObject *args) {
     double wrap = 0.0;
 
     if (!PyArg_ParseTuple(
-            args, "(dddddd)|d:transform", &a, &b, &c, &d, &e, &f, &wrap)) {
+            args, "(dddddd)|d:transform", &a, &b, &c, &d, &e, &f, &wrap
+        )) {
         return NULL;
     }
 
@@ -563,7 +571,8 @@ path_subscript(PyPathObject *self, PyObject *item) {
         PyErr_Format(
             PyExc_TypeError,
             "Path indices must be integers, not %.200s",
-            Py_TYPE(item)->tp_name);
+            Py_TYPE(item)->tp_name
+        );
         return NULL;
     }
 }
@@ -579,7 +588,8 @@ static PySequenceMethods path_as_sequence = {
 };
 
 static PyMappingMethods path_as_mapping = {
-    (lenfunc)path_len, (binaryfunc)path_subscript, NULL};
+    (lenfunc)path_len, (binaryfunc)path_subscript, NULL
+};
 
 static PyTypeObject PyPathType = {
     PyVarObject_HEAD_INIT(NULL, 0) "Path", /*tp_name*/